Convertible baby safety car seat assembly

Abstract

A convertible infant safety car seat assembly includes: an upper seat operable between an upright state and an elongated state; and a leg having a distal end with a wheel and operable between a storage state in which it is only combinable with the upright state of the upper seat and an operational state in which it allows the seat assembly to roll through the wheel; the extended state of the upper seat can only be combined with the operating state of the strut, and the operating state of the strut and the vertical state of the upper seat can be at least combined with each other. The seat assembly may include at least one of the following features: a seat manipulation assembly and a strut manipulation assembly spaced apart; a side protection module; the zipper device is used for detachably connecting the cover and the top cover of the seat; and a removable wheel.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202511608802.5 (22) Application Date 2023.11.29 (30) Priority Data 299773 2023.01.09 IL 299780 2023.01.09 IL 299781 2023.01.09 IL (62) Divisional Application Data 202311619044.8 2023.11.29 (71) Applicant Dunna Holdings Limited Address Quarry Bay, Hong Kong, China (72) Inventor Yoav Maza (74) Patent Agency Shenzhen Zifeng Intellectual Property Agency Co., Ltd. 44570 Patent Attorney Qu Yi (51) Int.Cl. B60N 2 / 28 (2006.01) B62B 7 / 12 (2006.01) B62B 9 / 20 (2006.01) (54) Invention Title Convertible Infant Safety Car Seat Assembly (57) Abstract A convertible infant safety car seat assembly includes: an upper seat operable between an upright position and an extended position; and a support leg having a distal end with wheels and operable between a storage position that can only be combined with the upright position of the upper seat and an operating position that allows the seat assembly to roll by the wheels; the extended position of the upper seat can only be combined with the operating position of the support leg, and the operating position of the support leg and the upright position of the upper seat can also be combined with each other at least once. The seat assembly may include at least one of the following features: spaced-apart seat operation assembly and support leg operation assembly; side protection module; zipper device for detachably connecting the cover and the top cover of the seat; and removable wheels. Claims 1 page, Description 50 pages, Drawings 36 pages, CN 121375595 A 2026.01.23 CN 1 21 37 55 95 A 1. A convertible infant safety car seat assembly, comprising: a lower support having a front portion and a rear portion and a reference surface horizontally passing through a lowermost region of the lower support; an upper seat connected to the lower support and having a backrest portion associated with the rear portion of the lower support and a foot portion associated with the front portion of the lower support; a support rod having wheels, the support rod being operable between a stored state and an operating state, wherein in the stored state at least the wheels are above the reference surface and the assembly is adapted to be positioned within a vehicle or on a support surface in a position suitable for securing an infant therein, and in the operating state at least the wheels are below the reference surface such that the seat assembly can roll by the wheels; the support rod forming a pair of rear support rods associated with rear wheels.and a pair of front struts associated with the front wheel, the front wheel, in its stored state, projecting laterally from the lower support to a greater extent than the rear wheel, at least in the rear view of the assembly; the front struts are pivotable for maneuvering from the operating state to the stored state, such that, in the stored state, the front wheel is positioned closer to the backrest portion than the footrest; wherein at least the front wheel is connected to the front struts via a quick-release mechanism and is removable from the front struts in a wheel removal direction extending laterally relative to the lower support; Each of the front wheels includes a strut connecting element extending along the wheel removal direction when the front wheel is connected to a corresponding front strut, and each of the front struts includes a wheel connecting element extending along the wheel removal direction, the strut connecting element and the wheel connecting element being detachably connectable to each other, thereby allowing the wheel to rotate together with the strut connecting element about a wheel rotation axis parallel to the wheel removal direction; the strut connecting element and the wheel connecting element at least partially constitute the quick-release mechanism. 2. The assembly of claim 1, wherein each of the front wheels includes: a rolling region configured to contact the support surface when the assembly rolls on the support surface via the wheel; and a remaining region configured not to contact the support surface when the assembly rolls on the support surface, each of the front wheels including a wheel retaining portion positioned in the remaining region, the wheel retaining portion being adapted to be held by a user for at least the purpose of removing the front wheel from the corresponding front strut. 3. The component of claim 1 or 2, wherein the quick-release mechanism further comprises a release actuator for actuating the bracket connecting element to release from the wheel connecting element. 4. The component of claim 3, wherein the release actuator is positioned at one of the front wheels and a corresponding front strut. 5. The component of any one of claims 1 to 4, wherein each of the front wheels comprises: a rolling region configured to contact the support surface when the component rolls on the support surface by means of the wheel; and a remaining region configured not to contact the support surface when the component rolls on the support surface, each of the front wheels including a wheel retaining portion positioned at the remaining region, the wheel retaining portion being adapted to be retained by a user for at least the purpose of removing the wheel from the corresponding front strut. 6. The component of any one of claims 1 to 4, wherein the rear wheel is connected to the rear strut via a quick-release mechanism. Claims 1 / 1 page 2 CN 121375595 A Convertible Infant Safety Car Seat Assembly

[0001] Divisional Application DescriptionThis application is a divisional application of Chinese Patent Application No. 202311619044.8, filed on November 29, 2023, entitled "Convertible Infant Safety Car Seat Assembly". Technical Field

[0002] The present invention relates to an infant safety car seat assembly that can be used as an infant carrier and can be converted for rolling use, for example, as a stroller. Background Art

[0003] For example, US8434781 discloses an infant safety car seat assembly of the kind disclosed herein. It typically includes a leg with wheels at its distal end and is operable between a storage state where the seat is configured to be installed in a vehicle and an operational state that allows the seat assembly to roll via the wheels.

[0004] US9629476 discloses a device capable of converting from a bassinet to an infant or child seat. The device has a frame assembly and a seat structure supported by the frame assembly. The seat structure defines a seat surface and is movable between at least a reclined seating position and a reclined sleeping position.

[0005] According to one aspect of the presently disclosed subject matter, a convertible infant safety car seat assembly is provided, comprising: a seat having a backrest portion and a foot portion, the seat being operable between an upright state in which the backrest portion and the foot portion form a first angle therebetween and an extended state in which the backrest portion and the foot portion form a second angle therebetween greater than the first angle; the assembly further comprising a strut having a distal end with wheels and operable between a stored state and an operating state, the stored state being at least compatible with the upright state of the seat to allow the seat assembly to be mounted inside a vehicle or on an external support surface in a position suitable for securing an infant therein, while the operating state allows the seat assembly to roll by the wheels.

[0006] The orientation of the backrest in the upright and extended states can also be defined by the angle it forms with an imaginary horizontal plane, thus the angle in the former state being greater than the angle in the latter state.

[0007] In this application and claims, several features are described regarding the imaginary horizontal plane, which may also be referred to as a "reference plane," "datum plane," etc.

[0008] The aforementioned seat assembly also includes a handlebar that is pivotable between different positions and has an adjustable length, thereby allowing the handlebar to take on multiple states depending on the mode of use of the safety car seat assembly. More specifically, the handlebar can take on at least a carrier state in which the handlebar is oriented substantially vertically and a stroller state in which the handlebar extends forward and can have a length greater than that of the carrier state. Alternatively, the handlebar may also take on a handlebar position.The storage state is oriented rearward and positioned adjacent to the backrest portion of the seat.

[0009] According to one aspect of the currently disclosed subject matter, the storage state of the strut can be combined only with the upright state of the seat. Specification 1 / 50 page 3 CN 121375595 A

[0010] Thus, the seat assembly can be used in at least the following modes: a car seat mounting mode that can also constitute the storage mode of the assembly, wherein the seat is in its upright state, the strut is in the storage state, and the handle is in any position suitable for the car to be mounted (e.g., it can be in the storage state, or it can be in the anti-rebound state, in which it has the same orientation as in the stroller state but with a shorter length, thereby providing stability to the safety car seat during and after possible front and rear collisions of the car in which the seat is mounted facing the car surface (e.g., the seat back) by minimizing the rotational forces associated with such collisions, thereby preventing the infant from hitting the surface with his / her head); a rollable carrier mode, wherein the seat is in its upright state, the strut is in the operating state, and the handle is in the carrier state; The stroller assembly includes an upright stroller mode, in which the seat is in its upright position, the support rod is in its operational position, and the handle is in its stroller position; and an extended stroller mode, in which the seat is in its extended position, the support rod is in its operational position, and the handle is in its stroller position.

[0011] According to another aspect of the currently disclosed subject matter, in the second mode of the seat assembly, the extended position of the seat can only be combined with the operational position of the support rod, and the operational position of the support rod and the upright position of the seat can also be combined with each other at least once.

[0012] Optionally, in the third mode of the seat assembly, the operational position of the support rod can be combined with the upright position of the seat, and the seat assembly can enter its first and second modes only from its third mode.

[0013] Optionally, the convertible infant safety car seat assembly is configured such that the operation of the support rod in the second mode of the seat assembly is prevented at least indirectly by the seat being in its extended position.

[0014] The operation of the seat in the first mode of the seat assembly can be prevented at least indirectly by the support rod being in its stored position.

[0015] Alternatively, or additionally, the convertible infant safety car seat assembly may also include a seat manipulation prevention device configured to prevent the seat from being manipulated from an upright position to an extended position, at least when the support rod is in a stored state.

[0016] Accordingly, according to another aspect of the presently disclosed subject matter, a convertible infant safety car seat assembly is provided, comprising: a seat having a backrest portion and a support rod portion; a seat manipulation mechanism operable to manipulate the seat between an upright position in which the backrest portion and the foot portion form a first angle therebetween and an extended position in which the backrest portion and the foot portion form a second angle therebetween greater than the first angle; and a seat manipulation prevention device, the seatThe manipulation prevention device is configured to prevent the seat from being manipulated from an upright position to an extended position, at least when the support rod is in a stored position.

[0017] In any of the above aspects, the convertible infant car seat may further include a support rod manipulation prevention device configured to prevent the support rod from being manipulated from an operating position to a stored position, at least when the seat is in the extended position.

[0018] Accordingly, according to another aspect of the currently disclosed subject matter, a convertible infant car seat assembly is provided, comprising: a support rod operating mechanism operable to operate the support rod between a stored position and an operating position; and a support rod manipulation prevention device configured to prevent the support rod from being manipulated from an operating position to a stored position, at least when the seat is in an extended position. The convertible infant car seat assembly of this aspect may also include the seat manipulation prevention device of the foregoing aspect.

[0019] Regarding the seat manipulation prevention device in the convertible infant safety car seat assembly according to any of the foregoing aspects, it may have any combination of one or more of the following features: The seat manipulation prevention device may be configured to change its state between a locked state and an unlocked state; in the locked state, the seat manipulation prevention device prevents manipulation of the seat toward the extended state; in the unlocked state, the seat manipulation prevention device enables manipulation of the seat between the upright state and the extended state; The seat manipulation prevention device may be configured to prevent manipulation of the seat toward the extended state by arresting the seat in the locked state; The seat manipulation prevention device may be configured to prevent manipulation of the seat toward the extended state by stopping the seat manipulation mechanism in the locked state; The seat manipulation prevention device may be configured to stop the seat manipulation mechanism only when the seat is in its upright state; The seat manipulation prevention device may be constituted by a support rod in its stored state, for example, by the distal end of the support rod. When the backrest portion of the seat is positioned at a first rear angle to a reference plane in the upright state and at a second rear angle smaller than the first rear angle in the extended state, and the backrest portion can be manipulated from the upright state to the extended state, the distal end of the support rod can be configured to contact the rear surface of the backrest portion of the seat in the stored state and be securely positioned to prevent rearward manipulation of the backrest portion, thereby preventing the seat from being manipulated from the upright state to the extended state, at least when the support rod is in the stored state.

[0020] Regarding the support rod manipulation prevention device in the convertible infant safety car seat according to any of the above aspects, it may further have any combination of at least one or more of the following features: The support rod manipulation prevention device can be configured to prevent the support rod from being manipulated from the operating state to the stored state, at least when the seat is in the extended state; The support rod manipulation prevention device can be configured to change its state between a locked state and an unlocked state, wherein the locked state is...In the locked state, the support rod manipulation prevention device prevents the support rod from being manipulated towards the storage state; in the unlocked state, the support rod manipulation prevention device allows the support rod to be manipulated between the storage state and the operating state. The support rod manipulation prevention device can be configured to prevent manipulation of the support rod towards the storage state by stopping the support rod in the locked state. The support rod manipulation prevention device can also be configured to prevent manipulation of the support rod towards the storage state by stopping the support rod operation mechanism in the locked state. The support rod manipulation prevention device can be configured to stop the support rod operation mechanism when the support rod is in its operating state. The support rod manipulation prevention device can be constituted by a seat in its extended state, for example, by the backrest portion of a seat.

[0021] When the convertible infant safety car seat assembly according to any of the foregoing aspects includes the seat control mechanism and strut control mechanism as described above, the seat assembly may further include: a seat control actuator configured to enable a user to operate the seat control mechanism; and at least one strut control actuator configured to enable a user to operate the strut control mechanism, wherein the seat control actuator or strut control actuator, the former or the latter, is positioned relative to the front of the seat assembly, while the latter or the former is positioned rearwardly spaced from the front of the seat assembly. For example, the seat control actuator may be positioned at the front of the lower support member.

[0022] Accordingly, according to another aspect of the currently disclosed subject matter, a convertible infant safety car seat assembly is provided, comprising: a seat having a backrest portion and a foot portion; a support rod; a support rod operating mechanism operable to operate the support rod between a stored state and an operating state; and a seat operating mechanism operable to operate the seat between an upright state in which the backrest portion and the foot portion form a first angle therebetween and an extended state in which the backrest portion and the foot portion form a second angle greater than the first angle therebetween. The seat assembly further comprises: a seat operating actuator configured to allow a user to operate the seat operating mechanism; and at least one support rod operating actuator configured to allow a user to operate the support rod operating mechanism. One of the seat operating actuator and the support rod operating actuator is positioned at a location associated with the front of the assembly, while the other is positioned longitudinally spaced away from it to reduce the risk of them being mixed up. For example, the seat operating actuator may be positioned adjacent to the foot portion, and the support rod operating actuator may be positioned adjacent to the backrest portion. More specifically, the seat control actuator may be in the form of a seat handle positioned at the foremost part of the footrest portion, and at least one lever control actuator may be in the form of a lever handle positioned at the top rear side of the backrest portion.

[0023] In other words, when there is more than one lever control actuator, each of them satisfies the above-described conditions regarding their spacing from the seat control actuator.

[0024] In a convertible infant safety car seat assembly according to any of the foregoing aspects or according to another aspect of the currently disclosed subject matter, the proximal portion of the strut may be hingedly connected to the opposite lateral side of the seat, and the assembly may further include at least one side protection module.

[0025] Each of the (multiple) side protection modules may be mounted on the respective left and right lateral sides of the seat. The seat may consist of a lower support and an upper seat portion having a structure and being operable in a manner similar to any of the foregoing aspects. In some examples, the seat may consist of a lower support and an upper seat portion integrally or integrally formed together. When the seat assembly is in its storage mode or car seat installation mode and is positioned inside the vehicle near the side door, in the event of a door impact with the assembly, the side protection module mounted on the side of the assembly facing the door will absorb at least a portion of the impact energy, thereby preventing injury to the infant sitting in the assembly.

[0026] Accordingly, according to another aspect of the currently disclosed subject matter, a convertible infant safety car seat assembly is provided, comprising: a seat having a backrest portion and a foot portion; a handle that is pivotally attached to the seat at a handle attachment area of ​​the seat via a pivotable attachment that allows the handle to pivot between a plurality of different positions, the handle having a seat-facing area facing the handle attachment area and an opposing outward-facing area; and a side protection module for absorbing at least a portion of the impact energy thereon, the side protection module being selectively mountable at the outward-facing area of ​​the handle.

[0027] In the convertible infant safety car seat assembly according to any of the foregoing or any of the following aspects, the backrest portion and foot portion of the seat can be manipulated in different ways to change the state of the seat between an upright state and an extended state. For example, a backrest portion and a foot portion can be mounted to a lower support member, which includes a rear hinge portion located at the rear of the lower support member and a front hinge portion located at the front of the lower support member, the backrest portion being pivotally hinged to the rear hinge portion, and the foot portion of the upper seat being configured to be slidably hinged to the front hinge portion, the change of the seat between an upright state and an extended state being achieved by the pivotal hinge of the backrest portion together with the slidable hinge of the foot portion.

[0028] Therefore, according to another aspect of the currently disclosed subject matter, a convertible infant safety car seat assembly is provided, comprising: a lower support member having a front and a rear portion and a reference surface horizontally passing through a lowermost region of the lower support member; an upper seat connected to the lower support member and having a backrest portion associated with the rear portion of the lower support member and a foot portion associated with the front portion of the lower support member; the upper seat may wherein the backrest portion and the foot portion are formed therebetween.The seat assembly is operable between an upright state at a first angle and an extended state in which the backrest and footrest portions form a second angle greater than the first angle; a support rod with wheels operable between a stored state in which at least the wheels are above a reference surface and an operational state in which at least the wheels are below the reference surface, allowing the seat assembly to be rolled by means of the wheels; the lower support includes a rear hinge portion located at the rear of the lower support and a front hinge portion located at the front of the lower support, the backrest portion being pivotally hinged to the rear hinge portion, and the footrest portion of the upper seat being slidably hinged to the front hinge portion, the change of the state of the upper seat between the upright state and the extended state being achieved by the pivotal hinge of the backrest portion together with the sliding hinge of the footrest portion. The backrest portion can be pivotally hinged about a pivot axis perpendicular to the longitudinal axis of the lower support, and the foot portion can be slidably hinged along the longitudinal axis of the lower support. The backrest portion and the foot portion can be connected to each other, such that manipulation of one causes manipulation of the other.

[0029] In all the above aspects, the seat may optionally include an upper seat and a lower support, the upper seat being hinged to and mounted on the lower support to allow the upper seat to take the aforementioned upright and extended states in the respective modes of the seat assembly. Additionally or alternatively, the backrest portion of the seat, or the backrest portion of the upper seat in cases where the seat also includes a lower support, may include an intermediate portion to which the foot portion is connected and which is movable about a vertical axis when the seat or upper seat is manipulated between the upright and extended states.

[0030] In all the foregoing aspects, the backrest portion of the seat may include a shell having an upper edge, the shell or at least a portion thereof near the upper edge being made of a plastic material and configured for sewing to it near the upper edge, and at least one zipper for attaching fabric to the shell to at least cover the backrest portion and / or the canopy.

[0031] Thus, according to another aspect of the currently disclosed subject matter, an infant seat is provided which, at least in use, comprises: a shell made of a plastic material having an outer side facing outward and an inner side of the shell to which a fabric cover of the seat can be attached, the shell having a rear wall and two side walls, each of the rear wall and the two side walls having a respective inner surface and an outer surface fused at a respective upper edge, the upper edges of the rear wall and the side walls being continuously fused and forming an upper edge of the shell; a fabric cover for at least covering the inner side when the fabric cover is detachably attached to the inner side of the shell; a canopy; and a zipper arrangement for detachably attaching the cover and the canopy to the shell adjacent to the upper edge of the shell, the zipper arrangement...The device includes a top cover zipper and a cover zipper, each zipper being separate and including a zipper case and a zipper pin, and having: a housing zipper half having one of the zipper case and the zipper pin, one of the zipper case and the zipper pin being sewn to the housing at least along the upper edge of the housing adjacent to the rear wall at the outer surface of the rear wall and the side wall; and a matching zipper half having the other of the zipper case and the zipper pin, the matching zipper half of the first zipper being sewn to the cover, and the matching zipper half of the second zipper being sewn to the top cover.

[0032] Optionally, the zipper case may be located on the housing zipper half, and the zipper pin may be located on the matching zipper half.

[0033] The above-described infant seat, including any of the optional features listed below, can form part of a convertible infant car seat assembly according to each of the foregoing aspects of the currently disclosed subject matter and any other infant safety car seat assembly. It can also form part of any other infant carrier or stroller, etc.

[0034] An infant car seat according to this aspect of the currently disclosed subject matter may include any combination of one or more of the following features: Each zipper shell half may have: a base at which the shell zipper half is sewn to the shell; and a flapping portion having zipper teeth, and both zipper shell half housings may be sewn to the shell at the base of the shell zipper half, such that the flapping portions of the shell zipper half housings may be separated from each other and operated independently when engaging the corresponding matching half of the zipper; The shell zipper shell half housing the cover zipper may be spaced from the upper edge of the shell by a first degree, and the shell zipper shell half housing the top cover zipper may be spaced from the upper edge of the shell by a second degree less than the first degree; The shell zipper shell half housing the cover zipper may extend along at least a portion of the upper edge of the shell, and the shell zipper shell half housing the top cover zipper may extend along a portion of the shell zipper shell half housing; When both the cover and the top cover are zipped to the outer shell, the top cover zipper can cover the cover zipper along the length of the top cover zipper; the zipper boxes of the outer shell halves of the two zippers can be located at or adjacent to different side walls of the outer shell, thereby allowing the cover zipper to be fastened in the opposite direction to the top cover zipper; the two outer shell zipper halves can be sewn together to the outer shell at least indirectly by at least one common seam; the upper edge of the outer shell can have a stepped zipper retraction recess having: a first wall at which the outer shell halves of the zipper are sewn to the outer shell; and a second wall oriented transversely to the first wall and having a height defining the depth of the recess; the zipper device may also include a fabric binding that accommodates theThe base of the outer shell half is sewn to the outer shell having a fabric binding member by the at least one common seam; in this case, the binding member having the base of the outer shell zipper half may have a thickness corresponding to the depth of the zipper retraction recess; in addition to the at least one common seam, the base of the outer shell zipper half may also be connected to each other by a pre-formed connection, which may optionally be formed by welding and / or sewing; the cover zipper may be longer than the top cover zipper and extend further downward relative to the top cover zipper along each of the two side walls of the outer shell; when the top cover is fastened, only the top cover zipper can be loosened, and the cover zipper remains at least partially inaccessible.

[0035] In a convertible infant safety car seat assembly according to any of the above aspects or according to another aspect of the currently disclosed subject matter, the assembly, when in storage mode and positioned on an external support surface, is able to swing thereon between a neutral position and at least one of a forward-tilting position and a rearward-tilting position. At least some areas of the component that contact the external support surface during its rocking can be made of a material that would improve the rocking quality of said areas compared to said rocking quality if said areas were made of some other areas that do not contact the external support surface during rocking.

[0036] Thus, according to another aspect of the subject matter currently disclosed, a convertible infant safety car seat assembly is provided, adapted to secure an infant therein and having a first storage mode and a second operating mode, in the first storage mode, the component being adapted to be positioned inside a vehicle, and in the second operating mode, the component being capable of rolling along an external support surface, the component being capable of rocking on the external support surface between a neutral position and at least one of a forward tilt position and a rearward tilt position when in the storage mode and positioned on the external support surface, the component comprising: One or more lowermost regions operable to contact an external support surface in a neutral position; at least one of a front region and a rear region operable to contact the external support surface when in at least one of the forward tilt position and the rear tilt position; a horizontal reference surface including one or more lowermost regions of the component when in the neutral position and imaginarily representing the external support surface; a lower support having a front and a rear portion and a lowermost seat region closest to the horizontal reference surface when the component is in the neutral position; an upper seat connected to the lower support and having a backrest portion associated with the rear portion of the lower support and a foot portion associated with the front portion of the lower support; a support rod connected to the lower support at its proximal end and having a distal end having a wheel fixed to the distal end at least in the operating mode, the support rod being capable of storage at least in the storage mode associated with the component.The system operates between a stored state and an operating state associated with at least an operating mode of the component, wherein in the stored state, at least a portion of each support rod having the wheel is above the reference surface, and in the operating state, at least the portion of each support rod having the wheel is below the reference surface, so as to enable the seat assembly to be rolled by the wheel; the support rods constitute a pair of rear support rods and a pair of front support rods; at least one pair of support rods has a curved shape such that, when in the stored state, the at least one pair of support rods has a first region positioned above the reference surface in a neutral position, at least one second region constituting at least one of the front region and the rear region, and at least one third region spaced apart from the first and second regions, at least the second region having a rocking engagement portion made of a material different from the material of the at least one third region, such material being used to improve at least one rocking quality compared to the rocking quality possessed if the rocking engagement portion were made of the material used to manufacture the third region.

[0037] In a convertible infant safety car seat assembly according to any of the foregoing aspects or according to another aspect of the currently disclosed subject matter, at least the front wheels are connected to the front strut via a quick-release mechanism, thereby allowing the removal of the front wheels at least when the assembly is to be positioned in a vehicle.

[0038] Accordingly, according to another aspect of the currently disclosed subject matter, a convertible infant safety car seat assembly is provided, comprising: a lower support having a front and a rear portion and a reference surface extending horizontally through the lowermost region of the lower support; an upper seat connected to the lower support and having a backrest portion associated with the rear portion of the lower support and a foot portion associated with the front portion of the lower support; a strut having wheels operable between a stored state and an operating state, in which at least the wheels are positioned above the reference surface, and the assembly is adapted to be positioned in a vehicle or on a support surface suitable for securing a toddler. In its position, and in the operating state, at least the wheels are located below the reference surface so that the seat assembly can roll by means of the wheels; the struts constitute a pair of rear struts associated with the rear wheels and a pair of front struts associated with the front wheels, the front wheels projecting laterally from the lower support member in their stored state to a greater extent than the rear wheels at least in the rear view of the assembly; the front struts are pivotally operable from the operating state to the stored state such that in the stored state, the front wheels are positioned closer to the backrest portion than the foot portion; wherein at least the front wheels are connected to the front struts via a quick-release mechanism.

[0039] The above-described aspects and features of the currently disclosed subject matter, as well as other aspects and features, are further specified in the embodiments of the currently disclosed subject matter presented below.

[0040] 1. A convertible infant safety car seat assembly, comprising:An upper seat having a backrest and leg section, operable between an upright state in which the backrest and leg section form a first angle therebetween and an extended state in which the backrest and leg section form a second angle therebetween greater than the first angle; and a support rod having a wheeled distal end and operable between a stored state and an operating state, the stored state being operable only in conjunction with the upright state of the upper seat in a first mode of the seat assembly, which is in a position suitable for securing a toddler within a vehicle, while the operating state allows the seat assembly to roll by means of the wheels; the extended state of the upper seat being operable only in conjunction with the operating state of the support rod in a second mode of the seat assembly, and the operating state of the support rod and the upright state of the upper seat being operable at least in conjunction with each other.

[0041] 2. The convertible infant car seat assembly according to Embodiment 1, wherein the operating state of the support rod can be combined with the upright state of the upper seat in the third mode of the seat assembly, and the assembly can enter its first and second modes only from its third mode.

[0042] 3. The convertible infant car seat assembly according to Embodiment 1 or 2, configured such that the operation of the support rod in the second mode of the seat assembly is prevented at least indirectly by the upper seat being in an extended state.

[0043] 4. The convertible infant car seat assembly according to Embodiment 1, 2 or 3, further configured such that the operation of the upper seat in the first mode of the seat assembly is prevented at least indirectly by the support rod being in a stored state.

[0044] 5. The convertible infant car seat assembly according to any one of Embodiments 1 to 4 further includes a seat manipulation prevention device, the seat manipulation prevention device being configured to prevent the upper seat from being manipulated from the upright state to the extended state at least when the support rod is in the stored state.

[0045] 6. The convertible infant car seat assembly according to Embodiment 5, wherein the seat manipulation prevention device is configured to change its state between a locked state and an unlocked state, wherein in the locked state, the seat manipulation prevention device prevents manipulation of the upper seat toward the extended state, and in the unlocked state, the seat manipulation prevention device enables manipulation of the upper seat between the upright state and the extended state.

[0046] 7. The convertible infant car seat assembly according to Embodiment 6, wherein the seat manipulation prevention device is configured to prevent manipulation of the upper seat toward the extended state by stopping the upper seat in the locked state.

[0047] 8. The convertible infant car seat assembly according to Embodiment 6, wherein the seat manipulation prevention device...The device is configured to prevent the upper seat from being manipulated toward the extended state by stopping the seat operating mechanism in a locked state.

[0048] 9. The convertible infant safety car seat assembly according to embodiment 8, wherein the seat manipulation prevention device is configured to stop the seat operating mechanism only when the upper seat is in its upright state.

[0049] 10. The convertible infant safety car seat assembly according to embodiment 8 or 9, wherein the seat manipulation prevention device includes a seat trigger member and a seat stop member, wherein the seat trigger member is configured to operate the seat stop member when the support rod is in its operating state, when the seat trigger member is triggered by the bracket; and wherein the seat stop member is operable by the seat trigger member to be manipulated from its stop state to its release state when it is in its operating state, in which the seat operating mechanism is released from the stop.

[0050] 11. The convertible infant car seat assembly according to Embodiment 10, wherein the support rod is configured to trigger the seat triggering member only when the support rod is in its operational state.

[0051] 12. The convertible infant car seat assembly according to Embodiment 10 or 11, further comprising a lower support having two support rod attachment areas on two lateral sides of the lower support, wherein the seat triggering member is arranged on the lower support adjacent to at least one of the support rod attachment areas, wherein at least one of the support rods includes a front protrusion positioned around the proximal end of at least one of the support rods, and wherein the front protrusion is configured to trigger the seat triggering member when the support rod is in its operational state.

[0052] 13. The convertible infant car seat assembly according to Embodiment 5, wherein the seat manipulation prevention device is constituted by a support rod in its stored state.

[0053] 14. The convertible infant car seat assembly according to Embodiment 13, wherein the seat manipulation prevention device is constituted by the distal end of the support rod.

[0054] 15. A convertible infant safety car seat assembly according to any of the foregoing embodiments, wherein the backrest portion of the upper seat is positioned at a first rear angle to a reference plane in the upright state, and at a second rear angle smaller than the first rear angle in the extended state, and wherein the backrest is operable rearward from the upright state to the extended state.

[0055] 16. A convertible infant safety car seat assembly according to embodiment 15, wherein the distal end of the support rod is configured to be securely positioned in contact with the rear surface of the backrest portion of the upper seat in the stored state of the support rod to prevent rearward operability of the backrest portion, thereby at least when the support rod is in the stored state.

[0056] 17. The convertible infant safety car seat assembly according to any one of Embodiments 1 to 16 further includes a support rod manipulation prevention device, the support rod manipulation prevention device being configured to prevent the support rod from being manipulated from the operating state to the stored state at least when the upper seat is in the extended state.

[0057] 18. The convertible infant safety car seat assembly according to Embodiment 17, wherein the support rod manipulation prevention device is configured to change its state between a locked state and an unlocked state, wherein in the locked state, the support rod manipulation prevention device prevents manipulation of the support rod toward the stored state, and in the unlocked state, the support rod manipulation prevention device enables manipulation of the support rod between the stored state and the operating state.

[0058] 19. The convertible infant safety car seat assembly according to Embodiment 18, wherein the support rod manipulation prevention device is configured to prevent manipulation of the support rod toward the stored state by stopping the support rod in the locked state.

[0059] 20. The convertible infant car seat assembly according to embodiment 19, wherein the support rod manipulation prevention device is configured to prevent the support rod from being operated toward the stored state by stopping the support rod manipulation mechanism in the locked state.

[0060] 21. The convertible infant car seat assembly according to embodiment 20, wherein the support rod manipulation prevention device is configured to stop the support rod manipulation mechanism when the support rod is in its operating state.

[0061] 22. The convertible infant car seat assembly according to embodiment 20 or 21, wherein the support rod manipulation prevention device includes a support rod triggering member and a support rod stopping member.

[0062] Wherein, the support rod triggering member is configured to operate the support rod stop member when the support rod triggering member is triggered by the upper seat while the upper seat is in its upright state; and wherein the support rod stop member is operable by the support rod triggering member to be manipulated from its stopped state to its released state when it is operated, in which the support rod actuation mechanism is released from the stop.

[0063] 23. The convertible infant safety car seat assembly according to embodiment 22, wherein the upper seat is configured to trigger the support rod triggering member only when the upper seat is in its upright state.

[0064] 24. The convertible infant safety car seat assembly according to embodiment 23, wherein the support rod triggering member is connected to the upper seat and is configured as part of the seat actuation mechanism such that when the upper seat is manipulated to the upright state, the support rod triggering member is also configured to maintain the upper seat in the upright state.

[0065] 25. The convertible infant car seat assembly according to embodiment 20 or 21, wherein the strut manipulation prevention device is constituted by the upper seat in its extended state.

[0066] 26. The convertible infant car seat assembly according to embodiment 25, wherein the strut manipulation prevention device is constituted by the backrest portion of the upper seat.

[0067] 27. The convertible infant car seat assembly according to any one of embodiments 17 to 26, wherein the backrest portion includes an intermediate portion to which the foot portion is connected. Specification 9 / 50 pages 11 CN 121375595 A

[0068] 28. The convertible infant car seat assembly according to embodiment 27, wherein the intermediate portion constitutes the lowermost portion of the upper seat, and wherein the lowermost portion of the upper seat is movable about a vertical axis when the upper seat is manipulated between the upright state and the extended state.

[0069] 29. The convertible infant safety car seat assembly according to embodiment 27 or 28, wherein at least the middle portion of the backrest portion is formed of a flexible material.

[0070] 30. A convertible infant safety car seat assembly comprising: an upper seat having a backrest portion and a foot portion; a seat operating mechanism operable to operate the upper seat between an upright state in which the backrest portion and the foot portion form a first angle therebetween and an extended state in which the backrest portion and the foot portion form a second angle therebetween greater than the first angle; a support rod having a distal end associated with a wheel and configured to operate between a stored state and an operating state, wherein in the stored state the car seat assembly can be mounted in a position in a vehicle suitable for securing an infant therein, and in the operating state the seat assembly can be rolled by the wheel; and a seat manipulation prevention device configured to prevent the upper seat from being manipulated from the upright state to the extended state, at least when the support rod is in the stored state.

[0071] 31. The convertible infant safety car seat assembly according to embodiment 30, wherein the seat manipulation prevention device is configured to change state between a locked state and an unlocked state, wherein in the locked state, the seat manipulation prevention device prevents manipulation of the upper seat toward the extended state, and in the unlocked state, the seat manipulation prevention device enables manipulation of the upper seat between the upright state and the extended state.

[0072] 32. The convertible infant safety car seat assembly according to embodiment 31, wherein the seat manipulation prevention device is configured to prevent manipulation of the upper seat toward the extended state by stopping the upper seat in the locked state.

[0073] 33. The convertible infant safety car seat assembly according to embodiment 31, wherein the seat manipulation prevention device prevents manipulation of the upper seat toward the extended state by stopping the upper seat in the locked state.The stop device is configured to prevent the upper seat from being manipulated toward the extended state by stopping the seat operating mechanism in the locked state.

[0074] 34. The convertible infant safety car seat assembly according to embodiment 33, wherein the seat manipulation prevention device is configured to stop the seat operating mechanism only when the upper seat is in its upright state.

[0075] 35. The convertible infant safety car seat assembly according to embodiment 33 or 34, wherein the seat manipulation prevention device includes a seat trigger member and a seat stop member, wherein the seat trigger member is configured to operate the seat stop member when the bracket is in its operating state and the seat trigger member is triggered by the bracket; and wherein the seat stop member is operable by the seat trigger member to be manipulated from its stopped state to its released state when it is in its operating state, in which the seat operating mechanism is released from the stop.

[0076] 36. The convertible infant safety car seat assembly according to embodiment 35, wherein the support rod is configured to trigger the seat trigger member only when the support rod is in its operational state.

[0077] 37. The convertible infant safety car seat assembly according to embodiment 35 or 36, further comprising: a lower support having two support rod attachment areas on two lateral sides of the lower support, wherein the seat trigger member is arranged on the lower support adjacent to at least one of the support rod attachment areas, wherein at least one of the support rods includes a front protrusion positioned around the proximal end of at least one of the support rods, and wherein the front protrusion is configured to trigger the seat trigger member when the support rod is in its operational state.

[0078] 38. The convertible infant safety car seat assembly according to embodiment 30, wherein the seat manipulation prevention device is constituted by a bracket in its stored state.

[0079] 39. The convertible infant car seat assembly according to Embodiment 38, wherein the seat manipulation prevention device is constituted by the distal end of the support rod.

[0080] 40. The convertible infant car seat assembly according to any one of Embodiments 30 to 39, wherein the backrest portion of the upper seat is positioned at a first rear angle with a reference plane in the upright state and at a second rear angle smaller than the first rear angle in the extended state, and wherein the backrest is operable rearward from the upright state to the extended state.

[0081] 41. The convertible infant car seat assembly according to Embodiment 40, when belonging to any one of Embodiments 32 or 33, wherein the distal end of the support is configured to be connected to the upper seat in the stored state of the support.The backrest portion is securely positioned by contact with the rear surface of the backrest portion to prevent rearward manipulation of the backrest portion, thereby preventing the upper seat from being manipulated from the upright state to the extended state, at least when the support rod is in the stored state.

[0082] 42. The convertible infant safety car seat assembly according to any one of embodiments 30 to 41 further includes a support rod manipulation prevention device configured to prevent the support rod from being manipulated from the operating state to the stored state, at least when the upper seat is in the extended state.

[0083] 43. The convertible infant safety car seat assembly according to embodiment 42, wherein the support rod manipulation prevention device is configured to change its state between a locked state and an unlocked state, in which the support rod manipulation prevention device prevents manipulation of the support rod toward the stored state, and in which the support rod manipulation prevention device enables manipulation of the support rod between the stored state and the operating state, in which the support rod manipulation prevention device prevents manipulation of the support rod toward the stored state.

[0084] 44. The convertible infant car seat assembly according to embodiment 43, wherein the support rod manipulation prevention device is configured to prevent manipulation of the support rod toward the stored state by stopping the support rod in the locked state.

[0085] 45. The convertible infant car seat assembly according to embodiment 43, wherein the support rod manipulation prevention device is configured to prevent manipulation of the support rod toward the stored state by stopping the support rod manipulation mechanism in the locked state.

[0086] 46. The convertible infant car seat assembly according to embodiment 45, wherein the support rod manipulation prevention device is configured to stop the support rod manipulation mechanism when the support rod is in its operating state.

[0087] 47. The convertible infant car seat assembly according to embodiment 45 or 46, wherein the support rod manipulation prevention device includes a support rod triggering member and a support rod stopping member.

[0088] Wherein, the support rod trigger member is configured to operate the support rod stop member when the support rod trigger member is triggered by the upper seat when the upper seat is in its upright state; and wherein the support rod stop member is operable by the support rod trigger member to be manipulated from its stopped state to its released state when it is operated, in which the leg operating mechanism is released from the stop member.

[0089] 48. The convertible infant safety car seat assembly according to embodiment 47, wherein the upper seat is configured to trigger the support rod trigger member only when the upper seat is in its upright state.

[0090] 49. The convertible infant safety car seat assembly according to embodiment 48, wherein the support rod trigger member is connected to the upper seat and constitutes part of the seat operating mechanism, such that when the upper seat is operated...When extended to the upright position, the support rod triggering member is also configured to maintain the upper seat in the upright position. Specification 11 / 50 pages 13 CN 121375595 A

[0091] 50. A convertible infant safety car seat assembly according to embodiment 42 or 43, wherein the support rod manipulation prevention device is constituted by the upper seat in its extended state.

[0092] 51. A convertible infant safety car seat assembly according to embodiment 50, wherein the support rod manipulation prevention device is constituted by the backrest portion of the upper seat.

[0093] 52. A convertible infant safety car seat assembly according to any one of embodiments 42 to 51, wherein the backrest portion includes an intermediate portion to which the foot portion is connected.

[0094] 53. The convertible infant car seat assembly according to embodiment 52, wherein the middle portion constitutes the lowermost portion of the upper seat, and wherein the lowermost portion of the upper seat is movable about a vertical axis when the upper seat is manipulated between the upright state and the extended state.

[0095] 54. The convertible infant car seat assembly according to embodiment 52 or 53, wherein at least the middle portion of the backrest portion is formed of a flexible material.

[0096] 55. A convertible infant safety car seat assembly, comprising: an upper seat having a backrest portion and a foot portion; a seat operating mechanism operable to operate the upper seat between an upright state in which the backrest portion and the foot portion form a first angle therebetween and an extended state in which the backrest portion and the foot portion form a second angle therebetween greater than the first angle; a support rod having a distal end associated with a wheel; a support rod operating mechanism operable to operate the support rod between a stored state and an operating state, wherein in the stored state the car seat assembly is mountable in a position in a vehicle suitable for securing an infant therein, and in the operating state the seat assembly is rollable by the wheel; and a support rod manipulation prevention device configured to prevent the support rod from being manipulated from the operating state to the stored state, at least when the upper seat is in the extended state.

[0097] 56. The convertible infant car seat assembly according to embodiment 55, wherein the support rod manipulation prevention device is configured to change its state between a locked state and an unlocked state, wherein in the locked state, the support rod manipulation prevention device prevents manipulation of the support rod toward the stored state, and in the unlocked state, the support rod manipulation prevention device enables manipulation of the support rod between the stored state and the operating state.

[0098] 57. The convertible infant car seat assembly according to embodiment 56, wherein the support rod manipulation prevention device is configured to prevent manipulation of the support rod toward the stored state by stopping the support rod in the locked state.

[0099] 58. The convertible infant car seat assembly according to embodiment 56, wherein the support rod manipulation prevention device is configured to prevent manipulation of the support rod toward the stored state by stopping the support rod manipulation mechanism in the locked state.

[0100] 59. The convertible infant car seat assembly according to embodiment 58, wherein the support rod manipulation prevention device is configured to stop the support rod manipulation mechanism when the support rod is in its operating state.

[0101] 60. The convertible infant car seat assembly according to embodiment 58 or 59, wherein the support rod manipulation prevention device includes a support rod triggering member and a support rod stopping member.

[0102] Wherein, the support rod triggering member is configured to operate the support rod stop member when the support rod triggering member is triggered by the upper seat when the upper seat is in its upright state; and wherein, the support rod stop member is operable by the support rod triggering member to be operated from a stopped state to a released state when it is operated, in which the support rod actuation mechanism is released from the stop.

[0103] 61. The convertible infant safety car seat assembly according to embodiment 60, wherein the upper seat is configured to trigger the support rod triggering member only when the upper seat is in its operating state.

[0104] 62. The convertible infant car seat assembly according to embodiment 61, wherein the support rod trigger member is connected to the upper seat and constitutes part of the seat operating mechanism, such that when the upper seat is operated to the upright position, the support rod trigger member is also configured to maintain the upper seat in the upright position.

[0105] 63. The convertible infant car seat assembly according to embodiment 55, wherein the support rod operation prevention device is constituted by the upper seat in its extended state.

[0106] 64. The convertible infant car seat assembly according to embodiment 63, wherein the support rod operation prevention device is constituted by the backrest portion of the upper seat.

[0107] 65. The convertible infant car seat assembly according to any one of embodiments 55 to 64, wherein the backrest portion includes an intermediate portion to which the foot portion is connected.

[0108] 66. The convertible infant safety car seat assembly according to embodiment 65, wherein the intermediate portion constitutes the lowermost portion of the upper seat, and wherein the lowermost portion of the upper seat is movable about a vertical axis when the upper seat is manipulated between the upright state and the extended state.

[0109] 67. The convertible infant safety car seat assembly according to embodiment 65 or 66, wherein at least the intermediate portion of the backrest portion is formed of a flexible material.

[0110] 68. The convertible infant car seat assembly according to any one of embodiments 55 to 67 further includes a seat manipulation prevention device configured to prevent the upper seat from being manipulated from the upright state to the extended state, at least when the support rod is in the stored state.

[0111] 69. The convertible infant car seat assembly according to embodiment 68, wherein the seat manipulation prevention device is configured to change state between a locked state and an unlocked state, wherein in the locked state, the seat manipulation prevention device prevents manipulation of the upper seat toward the extended state, and in the unlocked state, the seat manipulation prevention device enables manipulation of the upper seat between the upright state and the extended state.

[0112] 70. The convertible infant car seat assembly according to embodiment 68 or 69, wherein the seat manipulation prevention device is configured to prevent manipulation of the upper seat toward the extended state by stopping the upper seat in the locked state.

[0113] 71. The convertible infant car seat assembly according to embodiment 68 or 69, wherein the seat manipulation prevention device is configured to prevent manipulation of the upper seat toward the extended state by stopping the seat manipulation mechanism in a locked state.

[0114] 72. The convertible infant car seat assembly according to embodiment 71, wherein the seat manipulation prevention device is configured to stop the seat manipulation mechanism only when the upper seat is in its upright state.

[0115] 73. The convertible infant car seat assembly according to embodiment 71 or 72, wherein the seat manipulation prevention device includes a seat trigger member and a seat stop member, wherein the seat trigger member is configured to operate the seat stop member when the support rod is in its operating state and the seat trigger member is triggered by the support rod; and wherein the seat stop member is operable by the seat trigger member to be manipulated from a stopped state to a released state when it is operated, in which the seat manipulation mechanism is released from the stop. Instruction manual, pages 13 / 50, 15 CN 121375595 A

[0116] 74. The convertible infant safety car seat assembly according to embodiment 73, wherein the support rod is configured to trigger the seat triggering member only when the support rod is in its operational state.

[0117] 75. The convertible infant safety car seat assembly according to embodiment 73 or 74, further comprising: a lower support member having two support rod attachment areas on two lateral sides of the lower support member, wherein the seat triggering member is arranged on the lower support member adjacent to at least one of the support rod attachment areas, wherein at least one of the support rodsA front protrusion is positioned proximally around at least one of the struts, and wherein the front protrusion is configured to trigger the seat triggering member when the strut is in its operational state.

[0118] 76. A convertible infant safety car seat assembly according to embodiment 68, wherein the seat manipulation prevention device is constituted by a strut in its stored state.

[0119] 77. A convertible infant safety car seat assembly according to embodiment 76, wherein the seat manipulation prevention device is constituted by the distal end of the strut.

[0120] 78. A convertible infant safety car seat assembly according to any one of embodiments 68 to 77, wherein the backrest portion of the upper seat is positioned at a first rearward angle to a reference plane in the upright state and at a second rearward angle smaller than the first rearward angle in the extended state, and wherein the backrest is operable rearward from the upright state to the extended state.

[0121] 79. The convertible infant safety car seat assembly according to embodiment 78, when belonging to either embodiment 70 or 71, wherein the distal end of the support rod is configured to be securely positioned in contact with the rear surface of the backrest portion of the upper seat in the stored state of the support rod to prevent rearward manipulation of the backrest portion, thereby preventing the upper seat from being manipulated from the upright state to the extended state at least when the support rod is in the stored state.

[0122] 80. A convertible infant safety car seat assembly, comprising: a lower support having a front and a rear portion and a reference surface horizontally passing through a lowermost region of the lower support; an upper seat hingedly connected to the lower support and having a backrest portion associated with the rear portion of the lower support and a foot portion associated with the front portion of the lower support; a strut with wheels operable between a stored state and an operating state, wherein in the stored state at least the wheels are above the reference surface and the assembly is mountable in a vehicle in a position suitable for securing an infant therein, and in the operating state at least the wheels are below the reference surface such that the seat assembly can roll by means of the wheels; and a strut actuation mechanism operable to actuate the strut between the stored state and the operating state. A seat control mechanism operable to operate an upper seat between an upright state in which the backrest and footrest portions form a first angle therebetween and an extended state in which the backrest and footrest portions form a second angle therebetween greater than the first angle; a seat control actuator configured to enable a user to operate the seat control mechanism, and a support rod control actuator configured to enable a user to operate the support rod control mechanism, wherein one of the seat and the support rod control actuator is positioned in relation to the front of the lower support member, and the other is positioned in relation to the lower support member.

[0123] 81. The convertible infant car seat assembly according to embodiment 80, wherein the seat operation actuator is positioned at the front of the lower support member.

[0124] 82. The convertible infant car seat assembly according to embodiment 80 or 81, wherein the storage state of the support rod can only be combined with the upright state of the upper seat, thereby defining a first mode of the seat assembly; the extended state of the upper seat can only be combined with the operating state of the support rod, thereby defining a second mode of the seat assembly; and the operating state of the support rod and the upright state of the upper seat can also be combined with each other at least, thereby defining a third mode of the seat assembly.

[0125] 83. The convertible infant car seat assembly according to embodiment 80, 81 or 82, wherein the seat assembly can enter its first mode and second mode only from its third mode.

[0126] 84. The convertible infant car seat assembly according to embodiment 82 or 83, configured such that manipulation of the support rod in the second mode of the seat assembly is prevented at least indirectly by means of the upper seat being in an extended state.

[0127] 85. The convertible infant car seat assembly according to any one of embodiments 80 to 84, further configured such that manipulation of the upper seat in the first mode of the seat assembly is prevented at least indirectly by means of means of the support rod being in a stored state.

[0128] 86. The convertible infant car seat assembly according to any one of embodiments 80 to 85, further comprising a support rod manipulation prevention device configured to prevent the support rod from being manipulated from the operating state to the stored state at least when the upper seat is in the extended state.

[0129] 87. The convertible infant car seat assembly according to any one of embodiments 80 to 86, further comprising a seat manipulation prevention device configured to prevent the upper seat from being manipulated from the upright state to the extended state at least when the support rod is in the stored state.

[0130] 88. The convertible infant safety car seat assembly according to embodiment 87, wherein the seat manipulation prevention device is configured to change state between a locked state and an unlocked state, wherein in the locked state, the seat manipulation prevention device prevents manipulation of the upper seat toward the extended state, and in the unlocked state, the seat manipulation prevention device enables manipulation of the upper seat between the upright state and the extended state.

[0131] 89. The convertible infant safety car seat assembly according to embodiment 88, wherein the seat manipulation prevention device is configured to prevent the upper seat from moving toward the extended state by stopping the upper seat in the locked state.Manipulation of the state.

[0132] 90. A convertible infant car seat assembly according to embodiment 88 or 89, wherein the seat manipulation prevention device is configured to prevent manipulation of the upper seat toward the extended state by stopping the seat manipulation mechanism in a locked state.

[0133] 91. A convertible infant car seat assembly according to embodiment 89 or 90, wherein the seat manipulation prevention device is configured to stop the seat manipulation mechanism only when the upper seat is in its upright state.

[0134] 92. A convertible infant car seat assembly according to any one of embodiments 87 to 91, wherein the seat manipulation prevention device includes a support rod in its stored state.

[0135] 93. A convertible infant car seat assembly according to embodiment 92, wherein the seat manipulation prevention device includes the distal end of the support rod.

[0136] 94. A convertible infant car seat assembly according to any one of Embodiments 80 to 93, wherein the backrest portion of the upper seat is operable rearward from the upright state to the extended state.

[0137] 95. A convertible infant car seat assembly according to Embodiment 94, wherein the distal end of the support rod is configured to be securely positioned in contact with the rear surface of the backrest portion of the upper seat in the stored state to prevent rearward operability of the backrest portion, thereby preventing the upper seat from being operable from the upright state to the extended state, at least when the support is in the stored state. Instruction manual 15 / 50 pages 17 CN 121375595 A

[0138] 96. A convertible infant safety car seat assembly according to embodiment 86 and any one of embodiments 87 to 95 directly or indirectly dependent on embodiment 86, wherein the support rod manipulation prevention device is configured to change its state between a locked state and an unlocked state, wherein in the locked state, the support rod manipulation prevention device prevents manipulation of the support rod toward the storage state, and in the unlocked state, the support rod manipulation prevention device enables manipulation of the support rod between the storage state and the operating state.

[0139] 97. A convertible infant safety car seat assembly according to embodiment 96, wherein the support rod manipulation prevention device is configured to prevent operation of the support rod toward the storage state by stopping the support rod in the locked state.

[0140] 98. The convertible infant safety car seat assembly according to embodiment 96 or 97, wherein the support rod manipulation prevention device is configured to prevent operation of the support rod toward the stored state by stopping the support rod manipulation mechanism in the locked state.

[0141] 99. The convertible infant safety car seat assembly according to embodiment 98, wherein the support rod manipulation prevention device...The stopping device is configured to stop the support rod operating mechanism when the support rod is in its operating state.

[0142] 100. A convertible infant safety car seat assembly according to Embodiment 86 or any one of Embodiments 87 to 99 when directly or indirectly subordinate to Embodiment 86, wherein the support rod operating prevention device is constituted by an upper seat in its extended state.

[0143] 101. A convertible infant safety car seat assembly according to Embodiment 100, wherein the support rod operating prevention device includes the backrest portion of the upper seat.

[0144] 102. An infant seat, comprising at least in use: a housing made of a plastic material and having an outer side facing outward and an inner side thereon to which a fabric cover of the seat is attachable, the housing having a rear wall and two side walls, each side wall having a respective inner surface and an outer surface fused at a respective upper edge, the upper edges of the rear wall and the side walls being continuously joined and forming an upper edge of the housing; a fabric cover for at least covering the inner side when the fabric cover is detachably attached to the inner side of the housing; a top cover; and a zipper mechanism for detachably attaching the cover and the top cover to a housing adjacent to the upper edge of the housing, the zipper mechanism comprising a top cover zipper and a cover zipper, each zipper being detachable and comprising a zipper box and a zipper pin and having: A housing zipper half having one of a zipper box and a zipper pin, one of which is sewn to a housing adjacent to the upper edge of the housing at least along a portion of its adjacent rear wall at the outer surface of the rear wall and side wall, and a matching zipper half having the other of a zipper box and a zipper pin, the matching zipper half of the first zipper being sewn to the cover, and the matching zipper half of the second zipper being sewn to the top cover, wherein, optionally, the zipper box is located on the housing zipper half and the zipper pin is located on the matching zipper half.

[0145] 103. The infant seat according to embodiment 102, wherein each of the zippers has the following in the housing zipper half: a base at which the housing zipper half is sewn to the housing; and a flapping portion having zipper teeth, and the housing zipper halves of both zippers are sewn to the housing at the base of the housing zipper half, such that when the corresponding matching halves of the zippers are engaged, the flapping portions of the housing zipper halves can be separated from each other and operated independently.

[0146] 104. The infant car seat according to Embodiment 102 or 103, wherein the outer shell zipper half of the cover zipper is spaced from the upper edge of the outer shell by a first degree, and the outer shell zipper half of the top cover zipper is spaced from the upper edge of the outer shell by a second degree less than the first degree.

[0147] 105. The infant car seat according to any one of Embodiments 102 to 104, wherein the outer shell zipper half of the cover zipper is spaced from the upper edge of the outer shell by a second degree less than the first degree.The shell zipper half extends along at least a portion of the upper edge of the shell, and the shell zipper half of the top cover zipper extends along a portion of the shell zipper half of the cover zipper.

[0148] 106. The infant seat according to any one of embodiments 102 to 105, wherein when both the cover and the top cover are zipped to the shell, the top cover zipper covers the cover zipper along the length of the top cover zipper.

[0149] 107. The infant seat according to any one of embodiments 102 to 106, wherein the zipper boxes of the shell halves of the two zippers are located at or adjacent to different sidewalls of the shell, thereby enabling the cover zipper to be fastened in a direction opposite to that of the top cover zipper.

[0150] 108. The infant seat according to any one of embodiments 102 to 107, wherein the two shell zipper halves are sewn together to the shell by at least one common seam.

[0151] 109. An infant seat according to any one of Embodiments 102 to 108, wherein the upper edge of the outer shell includes a stepped zipper retraction recess, the zipper retraction recess having: a first wall at which the outer shell half of the zipper is sewn to the outer shell; and a second wall oriented transversely to the first wall and having a height defining the depth of the recess.

[0152] 110. An infant seat according to Embodiment 108 or 109, when directly or indirectly subordinate to Embodiment 111, wherein the zipper device further includes a fabric binding member that receives the base of the outer shell half and is sewn to the outer shell having the fabric binding member by the at least one common seam.

[0153] 111. An infant seat according to Embodiment 110 when subordinate to Embodiment 109, wherein the binding member having the base of the outer shell zipper half has a thickness corresponding to the depth of the zipper retraction recess.

[0154] 112. The infant car seat according to any one of Embodiments 109 to 111, which is directly or indirectly subordinate to Embodiment 108, wherein, when Embodiment 108 is directly or indirectly subordinate to Embodiment 103, the base of the outer shell zipper half is connected to each other by a pre-formed connection, which can optionally be formed by welding, in addition to the at least one common seam.

[0155] 113. The infant car seat according to any one of Embodiments 102 to 112, wherein the cover zipper is longer than the top cover zipper, and the cover zipper extends further downward relative to the top cover zipper along each of the two sidewalls of the outer shell.

[0156] 114. The infant car seat according to any one of Embodiments 102 to 113, wherein, when the top cover is fastened...At that time, only the top cover zipper can be loosened and the cover zipper remains at least partially inaccessible.

[0157] 115. A convertible infant safety car seat assembly adapted to secure an infant therein, and having a first storage mode and a second operating mode, wherein in the first storage mode the assembly is adapted to be positioned within a vehicle, and in the second operating mode the assembly is capable of rolling along an external support surface, the assembly being able to swing on the external support surface between a neutral position and at least one of a forward-tilting position and a rearward-tilting position when in the storage mode and positioned on the external support surface, the assembly comprising: one or more lowermost regions operable to contact the external support surface in the neutral position; at least one of a front region and a rear region operable to contact the external support surface when in at least one of the forward-tilting position and the rearward-tilting position; a horizontal reference surface including one or more lowermost regions of the assembly when in the neutral position, and imaginarily representing the external support surface; a lower support member having a front and a rear portion and a lowermost seat region closest to the horizontal reference surface when the assembly is in the neutral position; Specification 17 / 50 pages 19 CN 121375595 A An upper seat connected to the lower support and having a backrest portion associated with the rear of the lower support and a foot portion associated with the front of the lower support; a support rod connected to the lower support at its proximal end and having a distal end having a wheel fixed thereto at least in an operating mode, the support rod being operable between a storage state associated at least with a storage mode of the assembly and an operating state associated at least with an operating mode of the assembly, in the storage state at least a portion of each support rod having the wheel being above the reference surface, and in the operating state at least the portion of each support rod having the wheel being below the reference surface so as to enable the seat assembly to be rolled by the wheel; the support rods constitute a pair of rear support rods and a pair of front support rods; At least one pair of support rods have a curved shape such that, when in a stored state, the at least one pair of support rods have a first region positioned above a reference plane in a neutral position, at least one second region constituting at least one of the front region and the rear region, and at least one third region spaced apart from the first and second regions, at least the second region having a rocking engagement portion made of a material different from that of the at least one third region, such material being used to improve at least one rocking quality compared to the rocking quality possessed if the rocking engagement portion were made of the material used to manufacture the third region.

[0158] 116. The assembly according to embodiment 115, wherein the rocking quality is at least one of the following: higher frictional capacity, such that the rocking engagement portion constitutes a friction-increasing portion; orThe flexibility makes the swaying part constitute a soft contact part.

[0159] 117. The assembly according to embodiment 115 or 116, wherein the one or more lowermost regions and the at least one second region constitute a continuous curved shape at least as shown in the side view of the assembly.

[0160] 118. The assembly according to any one of embodiments 115 to 117, wherein the at least one second region constitutes at least one of the following in the stored state of the corresponding support: a rear region of the at least one of the front region and the rear region, and a front region of the at least one of the front region and the rear region extending further rearward from the rear of the lower support, and extending further forward from the front of the lower support.

[0161] 119. The assembly according to any one of Embodiments 115 to 118, wherein at least one of the lower support and the strut includes at least one other region spaced apart from the one or more lowermost regions and the at least one second region, wherein at least one of the one or more lowermost regions includes a rocking participation portion made of a material different from the material of the at least one other region, the material being used to improve at least one rocking quality compared to the rocking quality of the rocking participation portion if it were made of the material used to manufacture the other regions.

[0162] 120. The assembly according to Embodiment 119, wherein the rocking participation portion of the second region and the rocking participation portion of the at least one of the one or more lowermost regions are made of the same material.

[0163] 121. The assembly according to Embodiment 119 or 120, wherein the at least one other region constitutes a majority region of the at least one of the lower support and the strut.

[0164] 122. The assembly according to any one of Embodiments 115 to 121, wherein the one or more lowermost regions of the assembly include the lowermost region of the seat.

[0165] 123. The assembly according to embodiment 122, wherein the lower support includes a curved bottom extending between the front and rear portions of the lower support and including the lowest region of the seat, wherein the curved bottom at least partially participates in the assembly's ability to sway on the external support surface when in the storage mode and positioned on an external support surface to be able to oscillate between the neutral position and at least one of the front tilt position and the rear tilt position.

[0166] 124. The assembly according to any one of embodiments 115 to 123, wherein the one or more lowest regions of the assembly include the first region of the at least one pair of support rods.

[0167] 125.According to the component of embodiment 124, the first region has a rocking participation portion made of a material different from that of the at least one third region, such material being used to improve at least one rocking quality compared to the rocking quality that the rocking participation portion would have if made of the material used to manufacture the third region.

[0168] 126. According to the component of embodiment 125, wherein the rocking participation portion of the second region and the rocking participation portion of the first region are made of the same material.

[0169] 127. According to any one of embodiments 124 to 126, wherein the first region at least partially overlaps with one of the at least one second region in at least a side view of the component.

[0170] 128. According to any one of embodiments 115 to 127, wherein the wheels of the support rods of the at least one pair of support rods, when connected to the support rods, constitute a stopper for limiting the rocking of the component in at least one of the forward tilt position and the backward tilt position.

[0171] 129. According to any one of embodiments 115 to 127, the wheels of the support rods of the at least one pair of support rods are detachably connected to the support rods.

[0172] 130. The assembly according to Embodiment 129, wherein when the wheel is detached from the support rod, the range of sway of the assembly is increased compared to when the wheel is connected to the support rod, the range being defined by the total area of ​​the assembly coinciding with the horizontal reference plane during the swaying of the assembly.

[0173] 131. The assembly according to any one of Embodiments 115 to 130, wherein the at least one pair of support rods is a front pair of support rods.

[0174] 132. The assembly according to Embodiment 131, wherein the at least one second region constitutes a rear region coinciding with the reference plane at a corresponding rearward inclined position of the assembly.

[0175] 133. The assembly according to Embodiment 116 or any one of Embodiments 117 to 132 when directly or indirectly subordinate to Embodiment 116, wherein the material used to manufacture the friction-increasing portion is softer than the material of the at least one third region, thereby constituting the soft contact portion of the swaying participation portion.

[0176] 134. The component according to embodiment 133, wherein the soft contact portion provides damping for the swaying of the component.

[0177] 135. The component according to any one of embodiments 115 to 134, wherein the material used to manufacture the swaying participating portion prevents mechanical damage to the at least one pair of support rods.

[0178] 136. The component according to any one of embodiments 115 to 135, wherein the at least one third region constitutes a majority of the at least one pair of support rods.

[0179] 137. The component according to any one of embodiments 115 to 136, wherein the component having the swaying participating portion...Each support is made of a first material, and the rocking participation portion is made of a second material different from the first material.

[0180] 138. The assembly according to embodiment 137, wherein the rocking participation portion is in the form of a liner, the liner being attached to a corresponding support rod at its surface facing the reference surface.

[0181] 139. A convertible infant safety car seat assembly comprising: a lower support having a front and a rear portion and a reference surface extending horizontally through the lowermost region of the lower support; an upper seat connected to the lower support and having a backrest portion associated with the rear portion of the lower support and a foot portion associated with the front portion of the lower support; A support rod having wheels, the support rod being operable between a stored state and an operating state, in which at least the wheels are above the reference surface and the assembly is adapted to be positioned in a vehicle or on a support surface in a position suitable for securing a child therein, and in the operating state, at least the wheels are below the reference surface so that the seat assembly can roll by the wheels; the support rod constitutes a pair of rear support rods associated with the rear wheels and a pair of front support rods associated with the front wheels, the front wheels projecting laterally from the lower support member in their stored state to a greater extent than the rear wheels at least in the rear view of the assembly; the front support rods are pivotally operable from the operating state to the stored state such that in the stored state, the front wheels are positioned closer to the backrest portion than the foot portion; wherein at least the front wheels are connected to the front support rods via a quick-release mechanism.

[0182] 140. The assembly according to embodiment 139, wherein the front wheels are removable from the front support rods in a wheel removal direction extending laterally relative to the lower support member.

[0183] 141. The assembly according to embodiment 140, wherein each of the front wheels includes a strut connecting element extending along the wheel removal direction when the wheel is connected to a corresponding front strut, and each of the front struts includes a wheel connecting element extending along the wheel removal direction.

[0184] 142. The assembly according to embodiment 141, wherein the strut connecting element and the wheel connecting element are detachably connected to each other, thereby allowing the wheel to rotate together with the strut connecting element about a wheel rotation axis parallel to the wheel removal direction.

[0185] 143. The assembly according to embodiment 142, wherein the strut connecting element and the wheel connecting element at least partially constitute a quick-release mechanism.

[0186] 144. The assembly according to embodiment 143, wherein the quick-release mechanism further includes a release actuator,The release actuator is used to actuate the bracket connecting element to release from the wheel connecting element.

[0187] 145. The assembly according to embodiment 144, wherein the release actuator is positioned at one of the front wheel and the corresponding front strut.

[0188] 146. The assembly according to any one of embodiments 139 to 145, wherein each of the front wheels includes: a rolling region configured to contact the support surface when the assembly rolls on the support surface by means of the wheel; and a remaining region configured not to contact the support surface when the assembly rolls on the support surface, each of the front wheels including a wheel retaining portion positioned at the remaining region, the wheel retaining portion being adapted to be retained by a user for at least the purpose of removing the wheel from the corresponding front strut.

[0189] 147. The assembly according to any one of embodiments 139 to 146, wherein the rear wheel is connected to the rear strut via a quick-release mechanism.

[0190] 148. An infant safety car seat assembly comprising: a seat having a backrest portion and a foot portion; a handle attached to the seat at a handle attachment area of ​​the seat via a pivotable attachment, the pivotable attachment allowing the handle to pivot between a plurality of different positions, the handle having a seat-facing area facing the handle attachment area and an opposing outward-facing area; and a side protection module for absorbing at least a portion of impact energy thereon, the side protection module being selectively mountable at the outward-facing area of ​​the handle. Specification 20 / 50 pages 22 CN 121375595 A

[0191] 149. The assembly according to embodiment 148, wherein the side protection module is configured to pivot together with the handle when mounted to the handle.

[0192] 150. The assembly according to embodiment 148 or 149, wherein the side protection module has an elongated shape extending along a longitudinal axis and includes a first handle engagement portion and a second handle engagement portion spaced apart from each other at least partially along the longitudinal axis.

[0193] 151. The component according to embodiment 150, wherein, when the side protection module is mounted to the handle, the outward-facing region of the handle includes a first module engagement portion for engaging the first handle engagement portion and a second module engagement portion for engaging the second handle engagement portion.

[0194] 152. The component according to embodiment 151, wherein at least one of the first handle engagement portion and the second handle engagement portion includes a handle connecting element, and a corresponding at least one of the first module engagement portion and the second module engagement portion includes a module connecting element, the handle connecting element and the module connecting element being detachably connected to each other.

[0195] 153. The assembly of embodiment 152, wherein the handle connecting element and the module connecting element are detachably connected to each other via a quick-release mechanism.

[0196] 154. The assembly of embodiment 153, wherein the quick-release mechanism is a magnetic connection mechanism.

[0197] 155. The assembly of any one of embodiments 151 to 154, wherein at least one of the first handle engaging portion and the second handle engaging portion includes a first portion of an orientation fixing mechanism, and a corresponding at least one of the first module engaging portion and the second module engaging portion includes a second portion of the orientation fixing mechanism, wherein the first portion and the second portion of the orientation fixing mechanism are configured to engage with each other when the side protection module is mounted to the handle to fix the orientation of the side protection module relative to the handle.

[0198] 156. The assembly of embodiment 155, wherein the orientation fixing mechanism is configured to maintain the orientation of the side protection module relative to the handle during pivoting of the handle.

[0199] 157. The component according to any one of Embodiments 151 to 156, wherein the side protection module includes at least one third handle engagement portion positioned off-axis of the longitudinal axis, and the outward-facing region of the handle includes at least one third module engagement portion, the at least one third module engagement portion being configured to engage the at least one third handle engagement portion when the side protection module is mounted to the handle.

[0200] 158. The component according to Embodiment 157, wherein the at least one third handle engagement portion includes a handle connecting element, and the at least one module engagement portion includes a module connecting element, the handle connecting element and the module connecting element being detachably connected to each other.

[0201] 159. The component according to Embodiment 158, wherein the handle connecting element and the module connecting element are detachably connected to each other by a quick-release mechanism.

[0202] 160. The component according to Embodiment 159, wherein the quick-release mechanism is a magnetic connection mechanism.

[0203] 161. The component according to any one of embodiments 148 to 160 further includes a cable connection device for connecting the side protection module to at least one of the handle and the seat when the side protection module is installed to the handle.

[0204] 162. The component according to embodiment 161, wherein the cable connection device includes a cable having a first end connectable to the side protection module and a second end connectable to at least one of the handle and the seat.

[0205] 163. The component according to any one of embodiments 148 to 162, wherein the side protection module includes a cable having a first end connectable to the side protection module and a second end connectable to at least one of the handle and the seat.121375595 A A first module component selectively mountable to the handle and a second module component selectively mountable to the first module component.

[0206] 164. The assembly according to embodiment 163, wherein the side protection module includes a locking device for selectively locking the first module component and the second module component to each other when the second module component is mounted to the first module component.

[0207] 165. The assembly according to any one of embodiments 148 to 164, further comprising a support rod having a distal end with wheels and an opposing proximal end connected to the seat at its support rod attachment area, the support rod attachment area at least partially overlapping the handle attachment area in at least a side view of the assembly.

[0208] 166. The assembly according to embodiment 165, wherein the seat has a reference surface horizontally passing through its lowest region, the support rod is operable between a stored state and an operating state, in which at least the distal end is above the reference surface and the assembly is adapted to be positioned within a car in which a child is fixed, and in the operating state, at least the distal end is below the reference surface such that the seat assembly is able to roll by means of a wheel connected at the distal end, the support rod is pivotable rearward toward the backrest portion of the seat for manipulation from the operating state to the stored state, such that in the stored state, the distal end is positioned closer to the backrest portion than the foot portion; the support rod constitutes a pair of rear support rods associated with the rear wheels at least in the operating state and a pair of front support rods associated with the front wheels at least in the operating state.

[0209] 167. The assembly according to embodiment 166, wherein at least one of the front and rear wheels, when connected to the corresponding support rod in its stored state, constitutes an additional side protection module.

[0210] 168. The assembly according to embodiment 167, wherein, in the stored state of the support rod, the at least one wheel protrudes laterally from the seat to a degree greater than, at least in a rear view of the assembly, the degree to which at least another wheel on the same side of the seat as the at least one wheel protrudes laterally from the seat.

[0211] 169. The assembly according to embodiment 168, wherein the at least one wheel is a front wheel, and the at least another wheel is a rear wheel.

[0212] 170. A convertible infant safety car seat assembly comprising: a lower support having a front portion and a rear portion and a reference surface extending horizontally through a lowermost region of the lower support; an upper seat connected to the lower support and having a backrest portion associated with the rear portion of the lower support and a foot portion associated with the front portion of the lower support; the upper seat being configurable in the backrest portion.The seat assembly operates between an upright state in which the backrest and foot portions form a first angle therebetween and an extended state in which the backrest and foot portions form a second angle therebetween greater than the first angle; a support rod with wheels is operable between a stored state and an operating state, in which at least the wheels are above the reference surface and in the operating state, at least the wheels are below the reference surface, so that the seat assembly can roll by means of the wheels; the lower support includes a rear hinge portion at the rear of the lower support and a front hinge portion at the front of the lower support, the backrest portion being pivotally hinged to the rear hinge portion, and the foot portions of the upper seat being configured to be slidably hinged to the front hinge portion, the change of the state of the upper seat between the upright state and the extended state can be achieved by the pivotal hinge of the backrest portion together with the slidable hinge of the foot portion.

[0213] 171. The assembly according to embodiment 170, wherein the backrest portion is pivotally hinged about a pivot axis perpendicular to the longitudinal axis of the lower support (page 22 / 50 of specification 24 CN 121375595 A), and the foot portion is slidably hinged along the longitudinal axis of the lower support.

[0214] 172. The assembly according to embodiment 170 or 171, wherein the backrest portion and the foot portion of the upper seat are connected to each other such that manipulation of one of the backrest portion and the foot portion causes manipulation of the other.

[0215] 173. The assembly according to any one of embodiments 170 to 172, wherein the upper seat further includes an intermediate portion that securely connects the backrest portion and the foot portion to each other.

[0216] 174. The convertible infant car seat assembly according to embodiment 173, wherein the intermediate portion constitutes the lowermost portion of the upper seat, and wherein the lowermost portion of the upper seat is movable about a vertical axis when the upper seat is manipulated between the upright state and the extended state.

[0217] 175. The convertible infant car seat assembly according to embodiment 173 or 174, wherein at least the intermediate portion of the backrest portion is formed of a flexible material.

[0218] 176. The assembly according to any one of embodiments 173 to 175, wherein the intermediate portion is concave and formed of a flexible material such that it can bend when the upper seat is manipulated to the extended state.

[0219] 177. The assembly according to any one of embodiments 170 to 176, further comprising a seat manipulation mechanism operable to manipulate the upper seat between the upright state and the extended state; and a seat manipulation...An anti-slip device operable to prevent the upper seat from being manipulated from the upright state to the extended state.

[0220] 178. A convertible infant car seat assembly according to embodiment 177, wherein the seat manipulation anti-slip device is configured to change state between a locked state and an unlocked state, wherein in the locked state, the seat manipulation anti-slip device prevents manipulation of the upper seat toward the extended state, and in the unlocked state, the seat manipulation anti-slip device enables manipulation of the upper seat between the upright state and the extended state.

[0221] 179. A convertible infant car seat assembly according to embodiment 177 or 178, wherein the seat manipulation anti-slip device is operable to prevent manipulation of the upper seat toward the extended state by stopping the upper seat in the locked state.

[0222] 180. A convertible infant car seat assembly according to embodiment 177 or 178, wherein the seat manipulation prevention device is operable to prevent manipulation of the upper seat toward the extended state by stopping the seat manipulation mechanism in a locked state.

[0223] 181. A convertible infant car seat assembly according to embodiment 180, wherein the seat manipulation prevention device is operable to stop the seat manipulation mechanism only when the upper seat is in its upright state.

[0224] 182. A convertible infant car seat assembly according to any one of embodiments 177 to 181, wherein the seat manipulation prevention device is constituted by a support rod in its stored state.

[0225] 183. A convertible infant car seat assembly according to embodiment 182, wherein the seat manipulation prevention device is constituted by the distal end of the support rod.

[0226] 184. A convertible infant car seat assembly according to Embodiment 170 or any one of Embodiments 171 to 183 when directly or indirectly dependent on Embodiment 170, wherein the rear hinge portion is in the form of a hinge recess located in the sidewall of the lower support member, the hinge recess being configured to freely receive one or more hingeable elements of the backrest portion therein to allow these elements to pivot about the pivot axis.

[0227] 185. A convertible infant car seat assembly according to Embodiment 184, wherein the one or more hingeable elements of the backrest portion include a rear pivot axis integrally formed or assembled with the backrest portion. Specification 23 / 50 pages 25 CN 121375595 A

[0228] 186. A convertible infant car seat assembly according to Embodiment 170 or Embodiment 171 when directly or indirectly dependent on Embodiment 170, wherein the front hinge portion is an elongated hinge extending parallel to the longitudinal axis.The groove is in the form of a slot and is configured to slidably receive at least one corresponding hinged element of the foot portion therein.

[0229] 187. The convertible infant safety car seat assembly according to embodiment 186, wherein the hinged element of the foot portion includes a sliding rod integrally formed or assembled with the foot portion.

[0230] A brief description of the accompanying drawings is provided to better understand the subject matter disclosed herein and to illustrate how the invention can be practiced in practice. Embodiments will now be described by way of non-limiting example only with reference to the accompanying drawings, in which: Figures 1A, 1B, 1C, and 1D illustrate side views of an example infant safety car seat assembly according to the currently disclosed subject matter, in the respective car seat installation or storage mode, extended stroller mode, upright stroller mode, and rollable carrier mode in which the assembly can be used; Figure 1E is a schematic diagram illustrating possible transitions between the modes shown in Figures 1A to 1C / 1D; Figure 2A is a front perspective view of a lower support member that can be used in an example infant safety car seat assembly according to the currently disclosed subject matter; Figure 2B is a view taken along A-A direction perpendicular to the inner surface of the sidewall of the lower support member shown in Figure 2A; Figure 3A is a front perspective view of the upper seat without a cover, which can be used in an example infant safety car seat assembly according to the currently disclosed subject matter with the lower support member shown in Figures 2A and 2B. The upper seat is in its upright position; Figure 3B is a side view of the upper seat of Figure 3A; Figure 3C is a perspective sectional side view of the upper seat shown in Figure 3A, viewed along direction B-B perpendicular to the section plane in Figure 3A; Figure 3D is a front perspective view of the upper seat shown in Figures 3A to 3C, in its extended position; Figure 3E is a side view of the upper seat of Figure 3D; Figure 4A is a top perspective view of the seat assembly having the upper seat shown in Figures 3A-3E mounted to the lower support shown in Figures 2A and 2B, in the upright position shown in Figures 3A-3C, with its leg portion removed for simplification; Figure 4B is an enlarged perspective view of area 4B of the seat assembly shown in Figure 4A, including the seat operating mechanism and seat operating prevention device, with the leg portion of the upper seat removed for simplification; Figure 4C is an enlarged view of area 4C of the seat assembly shown in Figure 4B; Figure 4D is an enlarged view of area 4D of the seat assembly shown in Figure 4A. Figure 4E illustrates the area shown in Figure 4D when the upper seat of the seat assembly is in its extended state as shown in Figures 3D and 3E; Figure 4F is a close-up view of the proximal end of the leg of an infant safety car seat assembly according to an example of the currently disclosed subject matter, with the support rod shown in its operational state; Figure 4G is the proximal end of the support rod of Figure 4F, shown in its stored state; Figure 5A is a rear perspective view of the seat assembly shown in Figure 4A.Figure 5B is an enlarged view of area 5B in Figure 5A, including the lever operating mechanism and the lever operation prevention device; Figure 5C illustrates the area of ​​the seat shown in Figure 5B when the upper seat of the seat assembly is in its extended state (see page 24 / 50, CN 121375595 A 62); Figure 6 is a rear perspective view of the seat assembly of Figure 4A, illustrating a seat operation prevention device according to another example of the currently disclosed subject matter; Figure 7A is a rear perspective view schematically showing an example of an infant safety car seat assembly in storage mode according to the currently disclosed subject matter, having a side protection module; Figure 7B is a rear view schematically showing an example of two infant safety car seat assemblies according to the currently disclosed subject matter, each of which is located in storage mode inside a vehicle, and each of which has a side protection module; Figure 7C is a side view of an example of an infant safety car seat assembly in storage mode according to the currently disclosed subject matter, wherein its handle is in an anti-rebound state, and the assembly has a side protection module; Figures 7D and 7E are side views of the infant car seat assembly of Figure 7C, with the handle in the carrier and stored states, respectively; Figure 7F illustrates different views of the handle and side protection module of the infant car seat assembly of Figure 7C; Figure 7G illustrates different views of a side protection module with two modular components according to an example of the currently disclosed subject matter; Figure 7H is a side perspective view of a side protection module further connected to the handle via a cable connection device according to an example of the currently disclosed subject matter; Figure 8A is a front perspective view of an infant car seat assembly in an upright operating mode according to an example of the currently disclosed subject matter; Figure 8B is a rear perspective view of a seat assembly with a top cover attached thereto, according to an example of the currently disclosed subject matter; Figure 9 is an enlarged perspective view of a portion of the upper seat with a zipper device in a seat assembly according to an example of the currently disclosed subject matter, with a fabric cover zipped to it along most of the zipper length; Figure 10 is the same view as Figure 9, without the fabric cover; Figure 11 is a schematic cross-sectional view of a zipper device that can have for attaching a fabric cover and a top cover to the back of an infant car seat, according to another example of the currently disclosed subject matter; Figure 12A is a side view of an infant car seat assembly in storage mode, shown in a neutral position, according to an example of the currently disclosed subject matter; Figure 12B is a side view of the infant car seat assembly shown in Figure 12A, shown in a rear-tilted position; Figure 12C is a side perspective view of the infant car seat assembly of Figure 12A, shown in a rear-tilted position; Figure 12D is a side perspective view of the infant car seat assembly of Figure 12A, shown in a neutral position.Figure 12E is a bottom perspective view of the infant car seat assembly of Figure 12A; Figure 13A is a front perspective view of an example of the infant car seat assembly in storage mode according to the currently disclosed subject matter; Figure 13B is a rear perspective view of the infant car seat assembly of Figure 13A; Figure 13C is a rear view of the infant car seat assembly of Figure 13A; Figure 13D is the same view as Figure 13A, showing the front wheels removed from the corresponding front support; Figure 13E is the same view as Figure 13B, showing the two front wheels removed from the corresponding front support; and Figure 13F illustrates the front support and the front wheels removed from the front support of the infant car seat assembly of Figure 13A. Detailed Description

[0231] An example of the convertible infant car seat assembly according to the currently disclosed subject matter can be any seat assembly configured for use in the operating modes shown in Figures 1A-1D. These operating modes are the car seat installation mode shown in FIG1A, which will be referred to below as storage mode 20. The extended stroller mode shown in FIG1B will be referred to below as extended operating mode 24; the upright stroller mode shown in FIG1C and the rollable carrier mode shown in FIG1D will both be referred to below as upright operating mode 22.

[0232] In this example, the convertible infant car seat assembly shown in FIG1A to 1D is indicated by 10, and it includes: a lower support 30; an upper seat 50 hinged to and mounted on the lower support 30; a strut 70 having a distal end 71 associated with wheels and a proximal end 72 pivotally hinged to the lower support 30; and a handle bar 12 configured to pivot between multiple positions shown in FIG1A to 1D.

[0233] The handle bar may have an adjustable length, thereby allowing the handle bar to take on multiple states depending on the mode in which the car seat assembly is to be used.

[0234] The handlebar 12 of this embodiment can take at least the following forms: a carrier state (FIG. 1D), in which the handlebar 12 is oriented substantially vertically (FIG. 1D); a stroller state (FIG. 1B and 1C), in which the handlebar 12 extends forward and may have a length greater than that in the carrier state; and a storage state (FIG. 1A), in which the handlebar 12 is oriented rearward.

[0235] The lower support 30 includes a lowermost seat region 32 configured to contact a support surface 26, which may be, for example, a vehicle seat or a base or ground on which the seat assembly is mounted, configured to function as a car seat. When the seat assembly 10 is in storage mode 20, the support surface 26 is adapted to mount / position the seat assembly 10 thereon. The lowermost seat region 32 defines an imaginary horizontal reference plane 34 and also includes two strut attachment regions 42, the proximal ends 72 of which are located at...The support rod attachment area 42 is pivotally hinged between the following two states: (a) storage state (FIG. 1A), in which the distal end of the support rod is positioned on or above the horizontal reference plane 34, such that the lowermost seat region 32 of the seat assembly 10 can contact the support surface 26, on which the seat assembly will be mounted or positioned; and (b) operation state (FIG. 1B, 1C and 1D), in which the seat assembly can be rolled by wheels on the support surface 26, which are positioned below the horizontal reference plane 34.

[0236] The upper seat 50 includes a backrest portion 52 and a front leg portion 54, the distance between the front leg portion 54 and the horizontal reference plane 34 being less than the distance between the backrest portion 52 and the horizontal reference plane 34. The backrest portion 52 is configured to support the head and back of an infant sitting on the seat assembly 10, and for better head support, the backrest portion 52 may be provided with a headrest assembly 53, which is configured to be adjustable between a default position and an elevated position, as is known in the art.

[0237] The upper seat 50 can be operated between two states: (a) an upright state (FIGs 1A, 1C and 1D), in which the infant's sitting position is fixed to the upper seat 50, wherein the backrest portion 52 has a first orientation and forms a first angle α with the foot portion 54; and (b) an extended state (FIG 1B), in which a lying position for a toddler is fixed to the upper seat 50, wherein the backrest portion 52 has a second orientation that is closer to a horizontal orientation than the first orientation and forms a second angle β with the foot portion 54 that is larger than the first angle α.

[0238] Specifically, the first angle α may be about 90-130 degrees, and the second angle β may be about 140-170 degrees.

[0239] Typically, a seat assembly can be configured to enable multiple combinations between the above-described states of the upper seat and the support rod, while preventing at least one such combination. For example, such a prevented combination could be between the stored state of the support rod and the extended state of the upper seat, thereby eliminating the possibility of inserting the seat assembly into a car on which an infant is lying.

[0240] According to a later example, as shown in FIG1E, the seat assembly 10 is configured to enable the extended state of the upper seat 50 to be combined only with the operating state of the support rod 70. Thus, the seat assembly is configured to enable the upper seat 50 to be manipulated between the upright state and the extended state only when the support rod 70 is in its operating state. This manipulation can occur during the transition between the upright operating mode 24 and the extended operating mode 22. The seat assembly 10 is also configured to enable the stored state of the support rod 70 to be combined only with the upright state of the upper seat 50. Thus, the seat assembly is configured to operate only when the upper seat 50 is in its position.The support rod 70 can only be manipulated between the operating state and the storage state when it is in the upright state. This manipulation can occur during the transition between the upright operating mode 24 and the storage mode 20.

[0241] Therefore, in the upright operating mode 24 of the seat assembly, the operating state of the support rod 70 can be combined with the upright state of the upper seat 50, and the seat assembly can enter its first storage mode 20 and second extension operating mode 22 only from its third upright operating mode 24.

[0242] The structure of the lower support member 30 and the upper seat 50, as well as non-limiting examples of their assembly and operation, will now be described in detail with reference to the corresponding drawings, thereby allowing the combination of the above-described states of the support rod and the upper seat.

[0243] Generally, the basic structure of the lower support member may include at least one hinged portion to which at least a portion of the upper seat is configured to hinge, so as to allow its state to change between the upright state and the extension state.

[0244] The lower support may include a rear hinge portion and a front hinge portion, to which the backrest and footrest portions of the upper seat may be hinged, respectively. The hinge portions may be configured to provide the same or different types of hinges to the relevant portions of the upper seat; that is, they may both be configured to provide pivoting or linear hinges, or one may provide a pivoting connection while the other provides a linear hinge to the relevant portions of the upper seat. More specifically, the lower support may include a rear hinge portion located at the rear of the lower support and a front hinge portion located at the front of the lower support, the backrest portion being configured to pivotally hinge to the rear hinge portion and the footrest portion of the upper seat being configured to slidably hinge to the front hinge portion.

[0245] The lower support may be in the form of an asymmetrical bowl comprising a bottom, a high rear wall, and a low front wall spaced apart from each other along a longitudinal axis of the lower portion, and two side walls extending between them parallel to the longitudinal axis, as best seen in a side view of each side wall taken perpendicular to its inner surface. As shown in the side view of the lower support, the rear and front walls may generally extend away from each other such that the distance between them along the longitudinal axis increases in the direction away from the bottom of the lower support.

[0246] The rear hinge portion may be located in the rear region of the side wall of the lower support, for example, closer to the top of the side wall than the bottom of the lower support, and the front hinge portion may be located on the front wall of the lower support. Thus, the backrest portion of the upper seat may be configured to pivotally hinge to the rear hinge portion about an axis perpendicular to the longitudinal direction D of the lower support, and the leg portion of the upper seat may be configured to slidably hinge to the front hinge portion in the longitudinal direction.

[0247] In this example, the lower support 30, shown in detail in Figures 2A and 2B, includes: a bottom 33 constituting its lowermost region; a high rear wall 36; and a low front wall 37, the front and rear walls extending away from the bottom and in the longitudinal direction D of the lower support 30.The upper parts are far apart from each other; and two sidewalls 35, which are oriented generally parallel to direction D and have a top rear region 31.

[0248] The lower support 30 also includes: a rear hinge portion 38 located at the top rear region 31 of the sidewall 35, the backrest portion 52 being configured to pivotally hinge to the rear hinge portion 38 about a pivot axis (not shown) perpendicular to the longitudinal direction D of the lower support; and a front hinge portion 39 located at the front wall 37, the foot portion 54 of the upper seat 50 being configured to slidably hinge to the front hinge portion 39 in the longitudinal direction.

[0249] More specifically, in this example, the rear hinge portion 38 is in the form of a hinge recess located in the top rear region 31 of the sidewall 35 and configured to freely receive one or more hinged elements of the backrest portion 52 of the upper seat 50 so as to allow these elements to pivot together with the backrest about a pivot axis, and the front hinge portion 39 is in the form of elongated hinge slots 39A and 39B extending parallel to the longitudinal direction D and configured to slidably receive corresponding hinged elements of the foot portion 54 of the upper seat 50.

[0250] As described above, the lower support 30 includes two support rod attachment regions 42 (one of which is shown in Figures 2A and 2B), the proximal end 72 of the support rod 70 being pivotally hinged to the support rod attachment region 42 between the operating state and the stored state of the support rod 70, and a support rod actuation mechanism (not shown in Figures 2A and 2B) is configured to lock the support rod 70 in either of their stored state and operating state, and to unlock the support rod 70 so that the support rod 70 can be manipulated between the states. Different structures of the support rod actuation mechanism providing the above-described locking device may be used, including, but not limited to, any of those described, for example, in the applicant's US8469389 and US9505321, and thus the description of these structures is incorporated herein by reference.

[0251] The upper seat of the seat assembly according to the currently disclosed subject matter has a structure that allows at least a portion thereof to be hinged to one or more hinged portions of the lower support as described above, to allow the state of the upper seat to change between an upright state and an extended state. More specifically, when the lower support includes a rear hinge portion and a front hinge portion, the backrest portion and foot portion of the upper seat may have hingeable elements respectively configured to be hinged to the hinge portion of the lower support as needed. For example, the hingeable element of the backrest portion of the upper seat may be configured to be pivotally hinged to the rear hinge portion of the lower support, and the hingeable element of the foot portion of the upper seat may be configured to be slidably hinged to the front hinge portion of the lower support. The backrest portion and foot portion of the upper seat may also be hingedly connected to each other, such that movement of one of them will cause manipulation of the other.

[0252] Figures 3A to 3E illustrate an uncovered upper seat that can be used with the lower support shown in Figures 2A and 2B. In Figures 3A, 3B and 3D, 3E, the backrest portion of the upper seat is shown in a corresponding upright and extended state, wherein the corresponding first angle α and second angle β are mentioned above with reference to Figures 1B, 1C and 1D.

[0253] In Figures 3A to 3E, the hinged element of the backrest portion 52 of the upper seat 50 is constituted by a rear pivot shaft 38A, which is integrally formed or assembled with the backrest portion and has an end that is freely received in a recess in the rear hinge portion 38 of the lower support 30, so as to allow the shaft to pivot together with the backrest portion between its near-vertical orientation (i.e., upright state) and near-horizontal orientation (i.e., extended state). The hinged element of the foot portion 54 of the upper seat 50 is constituted by a sliding rod 56, which is integrally formed or assembled with the foot portion 54 and slidably received within the hinge slots 39A and 39B of the lower support 30, so as to allow the sliding rod 56 and the foot portion 54 to move between the extreme positions of the sliding rod 56 within the slots 39A and 39B corresponding to the innermost and outermost positions of the foot portion 54. The near-vertical orientation of the backrest portion 52 and the innermost position of the foot portion 54, and the near-horizontal orientation of the backrest portion 52 and the outermost position of the foot portion 54, respectively correspond to the upright state and the extended state of the upper seat 50.

[0254] Typically, the backrest portion and the foot portion of the upper seat can be directly or indirectly connected to each other. Alternatively, the backrest portion and the support portion can be individually connected to the lower support, rather than connected to each other. When the backrest and footrest are connected to each other, they can be hinged directly or indirectly via the middle backrest to allow rotation / manipulation of one part while simultaneously operating / rotating the other. Furthermore, the backrest and footrest can be fixedly connected to each other so that manipulation of one part causes manipulation of the other.

[0255] In this example, the upper seat 50 also includes a middle portion 57 that fixes the backrest 52 and footrest 54 to each other. Specifically (best shown in FIG3C), the middle portion 57 is configured as the bottom component of the backrest 52, extending forward from its lower edge 58, and is configured to be fixedly connected to the footrest 54 at its front edge 59. The middle portion 57 is concave and configured to receive the bottom of a toddler sitting on the upper seat 50. The middle portion 57 is formed of a flexible material so that it can be bent when the upper seat 50 is manipulated to an extended state, in which the middle portion 57 is less concave than in the upright state.

[0256] The backrest portion 52 and the foot portion 54 are also pivotally connected to each other by a hinged element, which is pivoted from the front.A pivot (not shown) is provided, the front pivot having an end that is freely received in a transverse intermediate hole 38B formed in the sidewall 35 of the lower support 30. This pivotal connection defines a horizontal axis X that interconnects the backrest portion 52 and the foot portion 54 about the transverse intermediate hole 38B through which they pivot.

[0257] Typically, the upper seat may also include a seat operating mechanism operable to guide the upper seat to change its state between an upright position and an extended position, as described above with reference to FIG1A to 1D. The mechanism may be configured to cause manipulation of only the backrest portion of the upper seat while maintaining the position of the foot portion (to provide different orientations of the backrest in the upright position of the upper seat), and / or to cause movement of each of the backrest portion and the foot portion or to cause movement of the foot portion that in turn causes movement of the backrest portion (in the latter two cases, changing the state of the upper seat between its upright and extended positions). The seat operating mechanism may include a seat operating actuator positioned at a location that can be operated by a user.

[0258] In the example shown in Figures 4A-4C, the seat operation mechanism of the upper seat 50 is indicated by 60 and includes: a seat operation actuator 61 for actuating the operation of the upper seat 50 to change its state; and a seat locking mechanism 63 for preventing the upper seat from changing its state.

[0259] The seat operation actuator 61 is constituted by a seat handle 62 arranged at the foremost part of the foot portion 54. The seat handle 62 includes: an outer seat handle portion 62A configured to allow a user to grasp the seat handle 62; and an inner seat handle portion 62B movably connected to the foot portion 54 so as to allow the foot portion 54 to move between its innermost and outermost positions and the backrest portion 52 to move accordingly between an upright state and an extended state by the user applying corresponding pushing and pulling forces to the handle.

[0260] Typically, the seat operating mechanism may also include a seat locking mechanism configured to selectively prevent the upper seat from changing its state between an upright state and an extended state. More specifically, the seat locking mechanism may have a locked state and an unlocked state, in which the seat locking mechanism prevents the upper seat from moving and thus prevents the upper seat from changing its state, and in the unlocked state, the seat locking mechanism allows the upper seat to move and thus change its state. The seat locking mechanism may be configured to selectively lock at least a portion of the upper seat to at least a portion of the lower support, more specifically, to at least two different portions of the lower support. The seat locking mechanism may be configured to: a first locking portion located at the lower support and a second locking portion located at a mating position at the backrest portion, the second locking portion being configured to interact with the first locking portion for selectively locking the backrest portion to the lower support.Support member. The lower support member may be configured to have two or more different portions to which the upper seat will lock, for enabling the upper seat to be gradually manipulated between its upright and extended states by a seat locking mechanism, while allowing the upper seat to be fixed relative to the lower support member in multiple states including upright and extended states (e.g., between upright and extended states).

[0261] Referring to FIG4A, 4D and 4E, the seat locking mechanism 63 is configured to selectively lock the upper seat 50 to the lower support member 30 in order to prevent it from changing its state. For this purpose, the seat locking mechanism 63 includes: a first locking portion 63A located at the lower support member 30 and a second locking portion 63B located at the backrest portion 52, the second locking portion 63B being configured to interact with the first locking portion 63A for selectively locking the backrest portion 52 to the lower support member 30.

[0262] More specifically, the first locking portion 63A of the seat locking mechanism 63 includes an elongated guide groove 41 and a plurality of fixing holes 42A-42C, all formed on the inner surface 35A of each sidewall 35. (The outer surface of the sidewall 35 is generally indicated by 35B). The holes 42A-42C are spaced apart from each other along a direction parallel to the elongated guide groove 41. The elongated guide groove 41 is formed in a curved manner, having a curvature similar to that of the lower edge 58 of the backrest portion as it travels between its upright and extended states. The elongated guide groove 41 is configured to slidably receive a corresponding guide element of the second locking portion 63B therein, thereby allowing the groove 41 to take different positions along the groove, and the holes 42A-42D are configured to receive a corresponding locking element of the second locking portion 63B therein when the guide element takes a corresponding position in the elongated guide groove 41, so as to lock the upper seat 50 to the lower support. The holes 42A-42D of the first locking portion 63A are also configured to provide the upper seat 50 with at least one, in this example two, additional intermediate states between an upright state and an extended state, in order to provide further orientation.

[0263] The second locking portion 63B of the seat locking mechanism 63 positioned on the upper seat 50 includes two pin retainers 64 (only one is visible) attached to the backrest portion 52 between the bottom 33 of the lower support member and adjacent to the inner surface 35A of different sidewalls 35 and configured to operate concurrently upon actuation of the actuator 61. Each pin retainer 64 includes a guide pin 66 and a locking pin 68, which are generally perpendicular to direction D and transverse to the pin retainer 64 parallel to each other. Each guide pin 66 and locking pin 68 includes: from the corresponding pin retainer 64An actuating portion 67A extends inward (i.e., away from the nearest sidewall 35); and a lockable portion 67B extends outward (i.e., toward the nearest sidewall 35) from the pin retainer 64 and is configured to interact with the first locking portion 63A.

[0264] The lockable portion 67B of the guide pin 66 is configured to be at least partially positioned within an elongated guide groove 41 and is configured to be slidably movable therein for guiding the manipulation of the backrest portion 52 between states. In this example, the lockable portion 67B of the guide pin 66 is held within the elongated guide groove 41. Locking pin 68 is positioned and configured to be inserted into and removed from any of the plurality of holes 42A-42C for securing the backrest portion 52 in each of the states of the upper seat 50, including an upright state (i.e., when the lockable portion 67B of locking pin 68 is in hole 42A), an extended state (i.e., when the lockable portion 67B of locking pin 68 is in hole 42C), and at least one intermediate state (i.e., when the lockable portion 67B of locking pin 68 is in hole 42B).

[0265] In this example, pin retainer 64 is configured to be actuated by seat actuator 61 to change the state of the seat locking mechanism to an unlocked state, and by doing so, releases the upper seat 50 and stops it against the lower support 30. For this purpose, the pin retainer 64 is configured to be actuated along a path perpendicular to the longitudinal direction D between a fixed position and a remote position, in which at least the lockable portion 67B of the locking pin 68 is inserted into one of the plurality of holes 42A-42C, while in the remote position, the lockable portion 67B of the locking pin is outside the holes 42A-42C. Thus, when the seat actuator 61 is actuated, the pin retainer 64 is actuated toward its remote position, thereby pulling the lockable portion 67B of the locking pin 68 out of one of the holes 42A-42C.

[0266] Regarding the support rod of the seat assembly according to the presently disclosed subject matter, referring to the support rod and support rod locking device as described in US 9505321 (the description of which is incorporated herein by reference, as stated above), the support rod can be configured to be actuated by a support rod actuation mechanism and a support rod locking mechanism, the support rod actuation mechanism including at least one support rod actuation actuator located in a user-available position. The support rods are operable between their stored state and operating state.

[0267] Referring to Figures 5A to 5C, the support rod operating mechanism 90 of the seat assembly 10 in this example includes: a support rod operating actuator 91 for actuating the support rod 70; and a support rod locking mechanism (not shown) for actuating the support rod locking device to stop the support rod from either a stored state or an operating state. In this example, the support rod operating actuator 91 is constituted by a support rod handle 92 positioned at the top rear side of the backrest portion 52 for easy access to the user. Support rod handle instruction manualPage 30 / 50 32 CN 121375595 A 92 includes: an outer portion 92A of the support handle 92 configured to allow a user to grasp the support handle 92; and an inner portion 92B of the support handle fixedly connected to the backrest portion 52. The support handle 92 is operatively connected to a support locking mechanism to unlock the locking mechanism by the user applying a corresponding force to the handle 92 and to allow movement of the support rod 70 between its stored state and its operational state.

[0268] Although in this example as described above, the seat handle 62 is positioned at the foremost side of the foot portion 54 and the support handle 92 is positioned at the top rear side of the backrest portion 52, their positions can be different, as long as they are spaced apart from each other to reduce the risk of them being mixed up.

[0269] As described above, the seat assembly can be configured to at least prevent the combination between the stored state of the support rod and the extended state of the upper seat, by which the possibility of inserting the seat assembly into a car on which an infant is lying is excluded. More specifically, if such manipulation would result in the support rod being in its stored state and the upper seat being in its extended state, the seat assembly can be configured to prevent manipulation of either the upper seat or the support rod. In some cases, the seat assembly can be configured such that a particular state of either the support rod or the upper seat would result in the prevention of manipulation of the other. In some cases, the seat assembly may include at least one manipulation prevention device configured to recognize a particular state of at least one of the upper seat and the support rod, and prevent manipulation of the other while maintaining the particular state. Such manipulation prevention device may include a mechanical or electrical mechanism. More specifically, the seat assembly may include manipulation placement devices for each of the upper seat and the support rod, each configured to recognize a particular state of its respective component.

[0270] As long as one of the upper seat or the support rod is not in a particular state, the manipulation prevention device can be configured to prevent manipulation of the other of the upper seat or the support rod. For example, if the support rod is in a stored state, the manipulation prevention device can be configured to prevent the seat from being manipulated from an upright state to an extended state. In another example, if the seat is in an extended state, the manipulation prevention device can be configured to prevent the support rod from being manipulated from the operating state to the stored state.

[0271] The manipulation prevention device can be configured to prevent manipulation of the upper seat or support rod by respectively stopping the upper seat or support rod, or by respectively stopping the seat operating mechanism or support rod operating mechanism.

[0272] The manipulation prevention device may have: an identification component, such as a trigger portion, configured to identify the state of the upper seat or support rod of the seat assembly; and a stop portion, configured to be actuated or triggered by the trigger portion to selectively stop the corresponding seat operating mechanism or support rod operating mechanism. The trigger portion and / or the stop portion of the manipulation prevention device may be fixed.Located on or constituted by different parts of the seat assembly. In some cases, the manipulation prevention device may be configured to actuate the operating mechanism of the upper seat or support rod in a manner similar to that of a corresponding locking mechanism, or the manipulation prevention device may be constituted or integrated with the operating mechanism of the upper seat or support rod.

[0273] For example, a seat assembly according to the presently disclosed subject matter may include a seat manipulation prevention device configured to prevent the upper seat from being manipulated from an upright position to an extended position, at least when the support rod is in a stored position. In one example, the seat manipulation prevention device is configured to prevent the upper seat from being manipulated to an extended position unless the seat manipulation prevention device is triggered by the support rod in its operating position.

[0274] The seat manipulation prevention device may be configured to change state between a locked state and an unlocked state, in which the seat manipulation prevention device prevents manipulation of the upper seat toward the extended state, and in the unlocked state, the seat manipulation prevention device enables manipulation of the upper seat between the upright and extended states.

[0275] In this example, the seat manipulation prevention device is indicated by 100 in FIG. 4B. When the support rod 70 is in its stored state, the seat manipulation prevention device 100 is configured to prevent the upper seat 50 from being manipulated from an upright state to an extended state. The seat manipulation prevention device 100 is configured to be triggered by the support rod 70 when the support rod 70 is in its operating state, which changes the state of the seat manipulation prevention device 100 from a locked state to an unlocked state, allowing the upper seat 50 to be manipulated between its upright state and its extended state.

[0276] In some cases, the seat manipulation prevention device is configured to prevent manipulation of the upper seat from the upright state to the extended state by stopping the seat manipulation mechanism when it is in the locked state. More specifically, the seat manipulation prevention device may be configured to stop the seat manipulation mechanism when the support rod is in its stored state. The seat manipulation prevention device may also be configured to release the stop of the seat manipulation mechanism when the support rod is in its operating state. Thus, the seat manipulation prevention device 100 is configured to stop the seat manipulation mechanism only when the upper seat 50 is in its upright position.

[0277] In some cases, the seat manipulation prevention device includes a seat trigger member and a seat stop member. The seat trigger member may be configured to operate the seat stop member when the support rod is triggered by the support rod while the support rod is in its operating state. The seat stop member is operable by the seat trigger member, thereby manipulating the seat stop member from a stopped state to a released state when it is operated. In the stopped state, the seat stop member stops the seat manipulation mechanism to prevent the upper seat from being manipulated from the upright state to the extended state, while in the released state, the seat manipulation mechanism is released from the stop, thereby enabling the seat to be operated from the upright state to the extended state while the upper seat 50 is in its upright position.The upper seat is manipulated between an upright state and an extended state. In a particular example, the support rod is configured to trigger the seat triggering member only when the support rod is in its operational state.

[0278] Figures 4B and 4C depict exemplary embodiments of a seat manipulation prevention device 100, which includes a seat triggering member 102 and a seat stop member 110. The seat triggering member 102 is configured to be triggered by the support rod 70 only when the support rod 70 is in its operational state, and thus operate the seat stop member 110. The seat triggering member 102 is also configured to maintain the operation of the seat stop member 110 when the support rod 70 is in its operational state. The seat stop member 110 is configured to have a stopped state and a released state. In the stopped state, the seat stop member 110 stops the seat operating mechanism 60 to prevent the upper seat 50 from being operated from an upright state to an extended state. In the released state, the seat operating mechanism 60 is released from the stop by the seat stop member 110, thereby enabling operation of the upper seat 50 between the upright and extended states.

[0279] Typically, a seat trigger member may be arranged on the lower support of the seat assembly adjacent to at least one of the support rod attachment areas of the seat assembly. In this case, at least one of the support rods may include a front protrusion positioned around its proximal end, wherein the front protrusion is configured to trigger the seat trigger member when the support rod is in its operating state. In other words, when the support rod is moved to its operating state or is in its operating state, its front protrusion triggers the seat trigger member, thereby causing the seat trigger member to operate the seat stop member. This operation manipulates the seat stop member from its stopped state to its released state, causing the seat stop member to release the stop of the seat operating mechanism, thereby enabling the upper seat to be operated between the upright state and the extended state. Correspondingly, when the support rod is not in the operating state (i.e., the support rod is moved to or moved to the storage state), its front protrusion no longer triggers the seat trigger member. In this case, the seat brake member presents its stopped state in order to stop the seat operating mechanism and thus prevent the upper seat from being operated from the upright state to the extended state.

[0280] In this example, referring to FIG4B, 4C, 4F and 4G, the seat trigger member 102 includes a trigger body 103 arranged on the lower support member 30 in front of and adjacent to at least one of the support rod attachment regions 42. In some cases, the seat trigger member 102 is arranged within or laterally projecting from one of the sidewalls 35. The movable member 104 extends through the length of the trigger body 103, having sufficient length to reach and contact at least a portion of one of the support rods 70, and more specifically, to contact the front side of the proximal end 72 of the support rod 70 when it is in its operational state. The proximal end 72 of the seat trigger member 102, at least for the support rod 70, includes a forwardly extending frontal projection.The front protrusion 105 is configured to press against the movable member 104 when the support rod 70 is in its operating state. The seat trigger member 102 is operably mechanically or electrically connected to the seat stop member 110. In the drawings, the movable member 104 is operably connected to the seat stop member 110 via cable 101 so that the seat stop member 110 is operated when the support rod 70 is in its operating state and is pressed by the front protrusion 105. Thus, in the unlocked state of the seat operation prevention device 100 (FIG. 4F), the movable member 104 of the seat trigger member 102 presses against the trigger body 103 by the front protrusion 105 of one of the support rods 70 when the support rod 70 is in its operating state. Pressing the seat trigger member 102 operates the seat stop member 110, causing it to move from a stopped state to a released state, thereby releasing the seat operating mechanism 60 so that the upper seat 50 can be operated between an upright state and an extended state. Correspondingly, in the locked state of the seat operation prevention device 100 (FIG. 4G), the movable member 104 of the seat trigger member 102 is pressed by a front protrusion of one of the support rods 70 when the support rod 70 is not in an operating state. Thus, the seat trigger member 102 is not triggered by the support rod 70, and therefore the seat trigger member 102 does not operate the seat stop member 110. Therefore, the seat stop member 110 is in its stopped state, in which it stops the seat operating mechanism 60, thereby preventing the upper seat 50 from being operated from an upright state to an extended state. Therefore, the support rod 70 of the seat assembly 10 is generally configured to change the state of the seat operation prevention device 100 between a locked state and an unlocked state. Thus, the seat operation prevention device is typically constituted by a support rod. In particular, the locked state of the seat operation prevention device is typically constituted by the support rod in its stored state, and the unlocked state of the seat operation prevention device is typically constituted by the support rod in its operational state.

[0281] The seat stop member 110 is configured to be operated by the seat trigger member 102 when the seat stop member 110 is triggered by the support rod 70 in its operational state. The seat stop member 110 is operable between a stop state associated with the locked state of the seat operation prevention device 100 and a release state associated with the unlocked state of the seat operation prevention device 100. In the stop state, the seat stop member 110 stops the operation of the seat operation mechanism 60, and in the release state, the seat stop member 110 releases the stop of the seat operation mechanism 60 to allow its operation.

[0282] In this example, the seat stop member 110 includes a pawl pivotally connected to the lower support member 30 and / or the foot portion 54 via a pivot pin 114 and positioned adjacent to the seat handle interior portion 62B. The seat stop member 110 includesThe seat stop 110 has an engaging portion 111 at one end and a lever portion 112 at the other end. The lever portion 112 is directly or indirectly connected to a movable member 104 of the seat trigger member 102, such that movement of the movable member 104 actuates the seat stop member 110 to pivot about a pivot pin 114. In the illustrated example, the lever portion 112 is operatively connected to the movable member 104 via a cable 101. The seat stop member 110 may also have a compression spring (not shown) configured to bias the seat stop member 110 toward its stopped state.

[0283] In the stopped state of the seat stop member 110, the engaging portion 111 is configured to be in mechanical communication with at least a portion of the seat handle 62 to prevent the seat handle 62 from being used to operate the seat control mechanism 60. In this example, the interior portion 62B of the seat handle also includes a seat handle recess 115 and an engagement portion 111 having a stop tooth 116 projecting laterally forward about its rear end. The stop tooth 116 is formed to be received in the seat handle recess 115 of the seat handle 62 such that when the stop tooth 116 is received therein, the seat stop member 110 stops the seat handle 62, and thus stops the seat operating mechanism 60 from being operated by the user to operate the upper seat 50 from its upright state to its extended state.

[0284] In operation, when the seat trigger member 102 is triggered by the support rod 70 in its operating state, the movable member 104 is moved by the front protrusion 105, which in turn causes the seat stop member 110 to pivot in a first direction away from the seat handle recess 115, so that the stop member 110 presents its released state. When the seat trigger member 102 stops being triggered by the support rod 70 (i.e., when the support rod 70 is manipulated away from the operating state or out of the operating state and manipulated toward the storage state), the movable member 104 moves rearward toward the corresponding support rod attachment area 42, causing the seat stop member 110 to pivot in a second direction opposite to the first direction, and causing the stop tooth 116 to insert into the seat handle recess 115, thereby placing the seat stop member 110 in its locked state.

[0285] In other cases (not shown), the seat manipulation prevention device is configured to prevent manipulation of the upper seat toward the extended state by stopping the upper seat in its locked state. In this case, in the stopped state, the seat stop member of the seat manipulation prevention device (pages 33 / 50, CN 121375595 A) can be configured to abut the upper seat to prevent its manipulation. For example, the seat stop member can be constituted by a bolt directly or indirectly connected to the seat trigger member 102. In the stopped state, this seat stop member can be configured to be positioned within a corresponding hole on the foot portion 54 of the upper seat 50, so as to stop the upper seat 50.In the manipulated and released state, the seat stop member can be configured to be removed from the hole when the seat trigger member 102 is triggered by the strut 70.

[0286] In other cases, the seat manipulation prevention device may be constituted by the strut and / or the associated structure. In one example, the seat manipulation prevention device may be constituted by the distal end of the strut.

[0287] Typically, when the upper seat of the seat assembly is manipulated from an upright state to an extended state, the corresponding backrest portion of the upper seat moves from a first position to a second position, in which the backrest portion is positioned at a first rear angle with a reference plane, and in the second position, the backrest portion is positioned at a second rear angle smaller than the first rear angle. This manipulation of the backrest from the first rear angle to the second rear angle, respectively associated with the upright and extended states of the upper seat, can be understood as forming a rearward manipulation of the backrest portion. The seat manipulation prevention device may be configured to selectively block the rearward manipulation of the backrest portion. For example, in the case where the distal end of the support rod constitutes a seat manipulation prevention device, the distal end of the support rod can be configured to be firmly positioned in contact with the rear surface of the backrest portion in its stored state to prevent rearward operation of the backrest portion, thereby preventing the upper seat from being manipulated from an upright state to an extended state.

[0288] In one example, referring to FIG6, the seat manipulation prevention device may include a rear rod 84 interconnecting the distal ends 71 ​​of the rear support rod support 76. When the support rod 70 is in its stored state, the rear rod 84 is configured to be firmly positioned against the rear surface of the backrest portion 52 when in its upright state. In this way, the rear rod 84 physically prevents the backrest portion 52 from being manipulated rearward, thereby preventing the upper seat 50 from being manipulated from an upright state to an extended state. It is conceivable that the front rod 82 (see FIG5A) interconnecting the distal ends 71 ​​of the front support rod support 74 may also be configured to prevent the backrest portion 52 from being manipulated rearward, thereby preventing the upper seat 50 from being manipulated from an upright state to an extended state. As shown in FIG5A, in addition to the front rod 82 connecting the distal ends of the front support members to each other, the front rod 80 also connects the front support members 74 at a position between the distal and proximal ends of the support members.

[0289] The manipulation prevention device of this seat assembly may alternatively or additionally include a support rod manipulation prevention device configured to prevent manipulation of the support rod manipulation mechanism. In this example, the seat assembly 10 includes a support rod manipulation prevention device 120 configured to prevent the support rod 70 from being operated from an operating state to a stored state, at least when the upper seat 50 is in an extended state. Similar to the seat manipulation prevention mechanism, the support rod manipulation prevention device 120 is also configured to change its state between a locked state and an unlocked state, in which the support rod manipulation prevention device 120 prevents the support rod 70 from being operated toward the stored state, while in the unlocked state, the support rod manipulation prevention device 120 enables manipulation of the support rod 70 between the operating state and the stored state.

[0290] In some cases, the support rod manipulation prevention device 120 is configured to prevent the support rod 70 from being manipulated toward the storage state by stopping the support rod manipulation mechanism 90 when it is in the locked state. In particular, the support rod manipulation prevention device 120 is configured to stop the support rod 70 from being manipulated toward the storage state when the upper seat 50 is in its extended state. Thus, the support rod manipulation prevention device 120 is configured to stop the support rod manipulation mechanism 90 when the support rod 70 is in its operating state.

[0291] Generally, the support rod manipulation prevention device may include a support rod triggering member and a support rod stopping member. The support rod triggering member may be configured to operate the support rod stopping member when the support rod triggering member is triggered by the upper seat when it is in its upright state. The operation of the support rod stopping member triggered by the support rod triggering member manipulates the support rod stopping member from the stopped state to the released state, in which the support rod stopping member thereby releases the support rod manipulation prevention mechanism from the stopped state. In some cases, the upper seat is configured to trigger the strut trigger member only when the upper seat is in an upright position. The strut trigger member can also be configured to maintain the operation of the strut stop member when the upper seat is in its upright position. Specification 34 / 50 pages 36 CN 121375595 A

[0292] In this example, preferably as shown in FIG4D and 4E, the strut trigger member is connected to the upper seat 50 and configured as part of the seat operating mechanism 60, wherein when the upper seat 50 is operated to an upright position, the strut trigger member is configured to maintain the upper seat 50 in the upright position. More specifically, the strut trigger member can be constituted by the seat locking mechanism 63, or even more specifically, by the guide pin 66 of the upper seat 50 and the elongated guide groove 41 of the lower support 30. For this purpose, the elongated guide groove 41 also includes, in its internal portion, an internal groove frame 123 extending through the length of the elongated guide groove 41. The slot inner frame 123 is configured to form a depth difference from the foremost edge to the last edge of the elongated guide slot 41, such that the guide pin 66 can be partially inserted into the elongated guide slot 41 while being positioned against the slot inner frame 123. At the last edge, the slot inner frame 123 defines a slot recess 124 having a greater depth than the slot inner frame 123. The slot recess 124 is configured to receive a larger portion of the lockable portion 67B of the guide pin 66 therein than the rest of the elongated guide slot 41.

[0293] Therefore, the support rod trigger member is configured to “identify” the state of the upper seat 50 based on the depth of the guide pin 66 inserted into the elongated guide slot 41. In particular, when the upper seat 50 is in an upright state associated with the unlocked state of the support rod operation prevention device 120, the support rod trigger member is inserted into the slot recess 124 (FIG. 4D), which triggers the operation of the support rod trigger member.The lever stop member is actuated to its released state, allowing the support rod 70 to be manipulated between an operating state and a stored state. Correspondingly, when the upper seat 50 is not in the upright state associated with the locked state of the support rod manipulation prevention device 120, the support rod trigger member is inserted into the elongated guide slot 41 (e.g., FIG. 4E) abutting against the inner frame 123, where the support rod trigger member is not triggered by the upper seat 50, thus not operating the support rod stop member and preventing manipulation of the support rod towards the extended state. Thus, when the upper seat 50 is in the upright state, the support rod manipulation prevention device 120 is in its unlocked state, allowing the support rod to be manipulated between the operating and stored states. When the upper seat 50 is not in the upright state (e.g., it is in the extended state), the support rod manipulation prevention device 120 is in its locked state, thus preventing manipulation of the support rod into the operating state.

[0294] The support rod stop member 130 of the support rod manipulation prevention device 120 is configured to have a stopped state and a released state. In the stopped state, the support rod stop member 130 stops the support rod manipulation mechanism 90, while in the released state, the support rod manipulation mechanism 90 is released from the stop of the support rod stop member 130. The support rod stop member 130 is configured to change the operation state of a support rod trigger member directly or indirectly connected to it. The support rod stop member 130 is operable between a stopped state associated with the locked state of the support rod manipulation prevention device 120 and a released state associated with the unlocked state of the support rod manipulation prevention device 120. In the stopped state, the support rod stop member 130 stops the manipulation of the support rod manipulation mechanism 90, while in the released state, the support rod stop member 130 allows the manipulation of the support rod manipulation mechanism 90.

[0295] In this example, as shown in FIG5B, the seat assembly 10 includes a pair of support rod stops 130, each support rod stop 130 being designed similarly to the seat stop 110 and formed by a pawl having an engagement portion 131 at one end and a lever portion 132 at the second end. The support rod stops 130 are pivotally connected to the upper seat 50, specifically to the backrest portion 52, via a pivot pin 134 located at their respective centers. Each support rod stop 130 is also directly or indirectly connected at its lever portion 132 to the retainer portion 67A (i.e., the support rod trigger member) of the guide pin 66. The support rod stops 130 are connected to the retainer portion 67A such that manipulation of the retainer portion 67A, i.e., by sliding the guide pin 66 along the elongated guide groove 41, results in the pivoting of the support rod stops 130.

[0296] In some cases not shown herein, the strut stop member 130 may also include a stop spring (not shown) designed to bias the strut stop member 130 to its stopped state.

[0297] Typically, in the stopped state, the engagement portion 131 of the strut stop member 130 is designed to abut / contact the strut handle.At least a portion of the hand 92 is provided to prevent the support handle 92 from being used to operate the support rod operating mechanism 90. In this example, the internal portion 92B of the support handle also includes: a support handle recess 135 and an engagement portion 131 having a stop tooth 136 projecting forward about its rear end. The support handle recess 135 is formed to receive the stop tooth 136 of the engagement portion 131 of the support rod stop member 130, such that when it is received within the support handle recess 135, the support rod stop member 130 stops the support rod handle 92 and thus stops the support rod operating mechanism 90 from being operated by the user to manipulate the support rod 70 from its operating state to its stored state.

[0298] In operation, when the upper seat 50 triggers the support rod trigger member (i.e., when the upper seat 50 is manipulated to its upright position), the guide pin 66 is inserted into the slot recess 124 (by the compressive force applied thereto by the pin retainer 64), thereby causing the support rod stop member 130 to pivot in a first direction away from the support rod handle recess 135, so that the support rod stop member 130 is in its released state. When the support rod trigger member retracts from the slot recess 124 and slides along and within the elongated guide groove 41 (i.e., when the upper seat 50 is manipulated from its upright position), the retainer portion 67A moves away from the pin retainer 64, causing the support rod stop member 130 to pivot in a second direction opposite to the first direction and enter the support rod handle recess 135, thereby putting the support rod stop member 130 in its locked state. Thus, the support rod stop member 130 stops the support rod handle 92 to prevent the user from operating the support rod operating mechanism 90 to operate the support rod 70.

[0299] In other cases (not shown), the support rod operation prevention device 120 may be configured in its locked state to prevent the support rod 70 from being manipulated toward the storage state by stopping the support rod 70. In this case, in its stopped state, the support rod stop member 130 may be configured to abut / contact the support rod 70 to prevent its manipulation. In this case, the support rod stop member 130 may be constituted by the upper seat 50 in its extended state, more specifically by its backrest portion 52.

[0300] For example, in its extended state, the backrest portion may physically prevent the support rod 70 from being manipulated to the storage state by preventing at least a portion of the support rod 70 from moving to its position in the storage state. In this example, the backrest portion 52 may be used to prevent the rear rod 84 of the pair of rear support rod supports 76 from reaching its position in the storage state, thereby forcing the support rod 70 to remain in its operating state.

[0301] The convertible infant safety car seat assembly according to the currently disclosed subject matter may include one or more side protection modules configured to provide side impact protection to the seat assembly. More specifically, the side protection modules are configured toFor absorbing at least a portion of the impact energy thereon. As an example, at least when the seat assembly is in its storage or car seat installation mode and is positioned inside a car near the car side door, in the event of a car door impacting the assembly, a side protection module mounted on the side of the assembly facing the car door will absorb at least a portion of the impact energy, thereby preventing injury to an infant sitting in the assembly.

[0302] Typically, the seat assembly may include a seat having a backrest portion and a foot portion. In some examples, the seat may consist of a lower support and an upper seat portion having a structure and being able to operate together in a manner similar to that described above with respect to assembly 10. In some examples, the seat may consist of a lower support and an upper seat portion integrally or integrally formed together. Thus, the following description of the seat applies to any seat having: a handle attachment area for attaching a handle to the seat; an upper seat portion having an upper seat portion allowing a young child to sit therein; and a lower support for providing mechanical strength to the seat.

[0303] The assembly includes a handle pivotally attached to the seat at the handle attachment area. The connection allows the handle to pivot between multiple positions to at least assume an anti-rebound or stroller state, a carrier state, and a stored state. The handle may have a seat connection portion where it is attached to the seat and includes a seat-facing area facing the seat attachment area and an opposing outward-facing area. The connection between the handle and the seat can be made by any suitable connection means, including mechanical, electrical, or magnetic connections that allow the handle to pivot between multiple different positions.

[0304] It should be understood herein that the handle is attached to the seat at both lateral sides, and for brevity, only one side of the seat, the corresponding handle attachment area, and the corresponding portion of the handle are described herein, and this description also applies to the other side. Furthermore, the seat assembly may include two side protection modules, one on each side of the handle / seat, 36 / 50 pages 38 CN 121375595 A, and for brevity, only one is described herein. The description of one side protection module is well applicable to the other side protection module.

[0305] The side protection module can be selectively mounted to the handle in the outward-facing area of ​​the handle, such that the side protection module extends beyond the handle in the lateral direction of the seat. The connection between the side protection module and the handle can be made by any suitable connection means, including mechanical, electrical, or magnetic connections, thereby allowing the side protection module to pivot together with the handle when connected, while allowing selective attachment and removal of the side protection module. It should be understood that the handle is pivotally connected at the handle attachment area, resulting in a bulky and complex handle attachment area, and further impacting the side protection module's position.The protection module is mounted at the portion of the handle that connects to the handle attachment area, thereby enabling the handle attachment area to pivot together with the side protection module, which requires a complex structure of the connection device.

[0306] In this example shown in Figures 7A to 7H, the convertible infant safety car seat assembly 210 includes a seat 202 consisting of an upper seat portion 250 and a lower support member 230. It should be understood here that although the seat assembly 210 is shown as being in a storage mode, it may have a similar operating mode as described above with respect to the seat assembly 10. In fact, the seat assembly 210 may include some or all of the features of the seat assembly 10 described above, such as those relating to modes, and the corresponding descriptions of the operating and storage modes of the assembly 10 and the operating and storage states of the support rod 70 apply to the assembly 210 and the support rod 270.

[0307] The seat 202 has two lateral sides 202A and 202B, each side having a corresponding handle attachment area 205, to which the handle 212 is pivotally connected. For example, two seat connection portions 213 on each side of the handle 212 are connected to the handle attachment area 205 at the two lateral sides 202A and 202B of the seat 202. The seat connection portion 213 includes a seat-facing area 213A facing the handle attachment area 205 and an opposite outward-facing area 213B.

[0308] The side protection module 206 is shown as being mounted to the corresponding side of the handle 212. As shown in Figures 7C, 7D, and 7E, which show the handle 212 in an anti-rebound state, a carrier state, and a stored state, the side protection module 206 is pivotable with the handle 212.

[0309] Typically, the side protection module 206 may have an elongated shape extending along a longitudinal axis, such that the side protection module may have a longitudinal dimension extending along the longitudinal axis that is longer than a lateral dimension extending transversely to the longitudinal axis. The elongated shape may be rectangular, polygonal, triangular, oval, elliptical, egg-shaped, teardrop-shaped, etc.

[0310] The side protection module engages the handle at least in two portions, more specifically, at least partially along the longitudinal axis. Thus, the side protection module includes a first handle engagement portion and a second handle engagement portion spaced apart from each other at least partially along the longitudinal axis, and the handle includes, in its outward-facing region, a corresponding first module engagement portion for engaging the first handle engagement portion and a second module engagement portion for engaging the second handle engagement portion. At least one of the two engagements may be a connecting device for mounting the side module to the handle, and at least one of the two engagements may be a directional fastener for orienting the side module relative to the handle, such that the side module can pivot together with the handle.

[0311] For example, at least one of the first handle engagement portion and the second handle engagement portion engages with a corresponding first module.The engagement of the first handle engagement portion and the second module engagement portion can constitute a connecting device for mounting the side protection module to the handle. The connecting device may include: a handle connecting element located at at least one of the first handle engagement portion and the second handle engagement portion, and a corresponding module connecting element located at at least one of the first module engagement portion and the second module engagement portion. The connecting elements may be detachably connected to each other, such that the connecting device can constitute a quick-release mechanism. Typically, the connecting device may have any suitable structure that allows the side protection module to be detachably connected to the handle. For example, the connecting device may be a mechanical connection device, an electrical connection device, or a magnetic connection device constituting a quick-release mechanism. Specification 37 / 50 pages 39 CN 121375595 A

[0312] Furthermore, the engagement of at least one of the first handle engagement portion and the second handle engagement portion with the corresponding first module engagement portion and the second module engagement portion can constitute an orientation fixing mechanism that orients the side protection module relative to the handle for fixing the side protection module, regardless of whether it participates in mounting the side protection module to the handle. Typically, the orientation fixing mechanism may include: a first component located at the side protection module and a second component located at the handle. The first and second components can be engaged in such a way as to prevent relative pivoting between them, thereby fixing the orientation to allow the side protection device to pivot together with the handle. The orientation fixing mechanism can include any suitable structure to fixally engage the first and second components to prevent one component from pivoting relative to the other component without having to connect them to each other. In some examples, the orientation fixing mechanism can be constituted by a connecting device.

[0313] In the example shown in Figures 7A to 7H, the side protection module has an elongated shape including a longitudinal axis LA. The seat connection portion 213 of the side protection module 206 and the handle 212 is shown as having a handle engagement portion and a module engagement portion, respectively. Figure 7F shows different views of the side protection module 206 and the seat connection portion 213, wherein the upper left portion of Figure 7F shows a cross-sectional view of the side protection module 206 mounted on the handle 212 along a plane perpendicular to the pivot axis PA of the handle, and as seen in the lateral direction indicated by the viewing direction V1 (Figure 7A) extending along the pivot axis PA from the outermost lateral region of the side protection module. The upper right portion of Figure 7F shows a cross-sectional view of the handle 212 taken along a plane perpendicular to the handle's pivot axis PA, and viewed in the transverse direction indicated by the viewing direction V2 (Figure 7A) extending along the pivot axis PA from the seat-facing region of the handle 212 to the outward-facing region. The lower left portion of Figure 7F shows the side protection module 206 detached from the handle 212, oriented along the view parallel to the upper left portion of Figure 7F, along its section and further toward the inner surface of the side protection module facing the handle when attached to the handle.The lower right portion of FIG7F shows a cross-sectional view of the side protection module 206 detached from the handle 212, taken along the same plane as the view of the lower left portion of FIG7F, and seen in the same direction as the upper right portion of FIG7F.

[0314] As seen in FIG7F, the side protection module 206 includes a first handle engagement portion 206-1 and a second handle engagement portion 206-2 spaced apart along the longitudinal axis LA, and the handle includes a first module engagement portion 212-1 and a second module engagement portion 212-2. In this example, the first handle engagement portion 206-1 and the first module engagement portion 212-1 constitute a magnetic connection mechanism, one of which is a magnet, while the other may be a magnet or a magnetic element (which does not necessarily have to be a magnet, but is attracted by a magnet). (A plurality of) magnets and / or magnets and magnetic elements constitute the handle connection element and the module connection element. Furthermore, in this example, the second handle engagement portion 206-1 and the second module engagement portion 212-1 constitute an orientation fixing mechanism, wherein the second handle engagement portion 206-2 is a recess of the first component constituting the orientation fixing mechanism, and the second module engagement portion 212-2 is a protrusion of the second component constituting the orientation fixing mechanism for receiving within the recess when the side protection module 206 is mounted to the handle 212, for example, the side protection module 206 cannot rotate / pivot relative to the handle 212, thus the orientation of the side protection module 206 is fixed relative to the handle 212.

[0315] Typically, the side protection module may include at least one third handle engagement portion positioned off-axis, and the outward-facing area of ​​the handle may include a corresponding at least one third module engagement portion configured to engage at least one third handle engagement portion when the side protection module is mounted to the handle. The engagement of at least one third handle engagement portion with the corresponding at least one third module engagement portion may constitute a connection device, which may include: a handle connecting element positioned at at least one third handle engagement portion and a corresponding third module connecting element positioned at at least one third module engagement portion. The connecting elements can be detachably connected to each other, allowing the connecting device to form a quick-release mechanism. Typically, the connecting device can have any suitable structure that allows the side protection module to be detachably connected to the handle (see page 40, CN 121375595 A). For example, the connecting device can be a mechanical, electrical, or magnetic connection that constitutes a quick-release mechanism. In some examples, the engagement of at least one third handle engagement portion with a corresponding third module engagement portion can constitute a directional fixing mechanism, which is effective regardless of whether it participates in the installation of the side protection module.The orientation of the side protection module is fixed relative to the handle. Typically, the orientation fixing mechanism may include: a first component positioned at the side protection module and a second component positioned at the handle. The first and second components may be engaged in such a way as to prevent relative pivoting between them, thereby fixing the orientation to allow the side protection device to pivot together with the handle. The orientation fixing mechanism may include any suitable structure to securely engage the first and second components to prevent one component from pivoting relative to the other component, without necessarily connecting them to each other.

[0316] In some cases, the side protection module may include: two third handle engagement portions, each of which is offset from the longitudinal axis and positioned on its opposite side. The handle may include only one third module engagement portion that engages one of the two third handle engagement portions, depending on which side of the handle is connected to the side protection module. For example, the third module engagement portion on the left side of the handle may engage one of the two third handle engagement portions, and the third module engagement portion on the right side of the handle may engage the other of the two third handle engagement portions. This structure and positioning of the third handle engagement portions and module engagement portions allows the side protection module to be used on both sides of the seat and eliminates the need to manufacture different side protection modules for different sides of the seat.

[0317] In this example, as seen in FIG. 7F, the side protection module 206 includes two third engagement portions 206-3, while the handle has a third module engagement portion 212-3. In this example, each of the third handle engagement portion 206-3 and the third module engagement portion 212-3 constitutes a magnetic connection mechanism, one of which is a magnet, while the other may be a magnet or a magnetic element (which does not necessarily have to be a magnet, but is attracted by a magnet). (A plurality of) magnets and / or magnets and magnetic elements constitute the handle connection element and the module connection element. The third module engagement portion 212-3 engages one of the two third handle engagement portions 206-3, depending on which side (left or right) of the handle 206 is connected to the side protection module 206.

[0318] Typically, the side protection module may include more than one component, namely, at least a first module component that may be selectively mountable to the handle and at least a second module component that may be selectively mountable to the first module component. The side protection module may include a locking device for selectively locking the first and second module components to each other when the second module component is installed onto the first module component. The first and second module components may be connected to each other by any suitable mechanical, electrical, or magnetic connection. The locking device may have any suitable structure to prevent the second module component from being detached from the first module component when locked. The side protection module formed in both components allows for selection of its lateral extension from the seat, for example, depending on the availability of space in the vehicle.

[0319] In this example, as best seen in FIG7G, the side protection module 206 includes a first module component 206A selectively mountable to the handle 212 and a second module component 206B selectively mountable to the first module component 206A. The side protection module 206 also includes a locking device 207 for selectively locking the first module component 206A and the second module component 206B to each other when the second module component 206B is mounted to the first module component 206A. In this example, the locking device 207 is configured to move between a locked state and an unlocked state, in which the locking device 207 prevents the first module component 206A and the second module component 206B from being disassembled, and in the unlocked state, the locking device 207 allows the first module component 206A and the second module component 206B to be disassembled by pivoting the second module component 206B relative to the first module component 206A.

[0320] Typically, the assembly may also include a cable connection device for connecting the side protection module to at least one of the handle and the seat when the side protection module is mounted to the handle. The cable connection device may include a cable having a first end connectable to the side protection module and a second end connectable to at least one of the handle and the seat. In some examples, the second end may be connected at the strut instead of at the handle or the seat. The cable connection device prevents the side protection module from flying off in the event of a sudden impact. For example, if the quick-release mechanism cannot withstand the impact and the side protection module is detached from the handle, the side protection module will not fly off but will remain suspended from the handle or the seat due to the cable connection device. In this example, the cable connection device 208 may be best shown in FIG. 7H as a cable 208A having one end connected to the side protection module 206 and the other end connected to the handle 212.

[0321] Typically, the assembly may also include a strut having a distal end with wheels and a relatively proximal end connected to the seat at its strut attachment area. The strut attachment area may form part of the upper seat or lower support and is positioned on the left and right sides of the seat. The struts can form a pair of front struts and a pair of rear struts, and at least one of these pairs can be connected to the seat at the strut attachment area. In a side view of the assembly, when mounted to the handle, the strut attachment area can at least partially overlap with the handle attachment area and optionally overlap with the side protection module. For example, when mounted to the handle, a lateral axis parallel to the handle's pivot axis passes through at least a portion of the handle attachment area and at least a portion of the strut attachment area, and optionally through at least a portion of the side protection module.

[0322] This overlap between the handle attachment area and the strut attachment area provides [something] at the area where the side protection module is to be mounted.A thick material layer is provided, thus offering enhanced protection against side impacts. It should be understood that the attachment of the strut and handle in one area, and the fact that both the strut and handle are independently pivotable, makes that area large and complex, with a thick material layer (thick in the lateral direction). Furthermore, mounting the side protection module on the portion of the handle that connects to the handle attachment area makes that area even larger and has a thicker material layer, thereby increasing the energy absorption capacity of that area in the event of a side impact.

[0323] In addition to the side protection module 206, wheels can also constitute additional side protection modules. For example, when the struts are in their stored state, the wheels are positioned on the lateral sides of the seat, thereby allowing at least one of the rear and front wheels to constitute additional side protection modules on both lateral sides of the seat.

[0324] In this embodiment, the strut 270 has a distal end 271 with a wheel 286 and a proximal end 272 connected to the strut attachment area 242 (best seen in FIG. 13A), only one of which is seen in FIG. 7A to 7E. In the side view of the assembly (Figures 7C to 7E), the support rod attachment area 242 overlaps with the handle attachment area 205. In other words, in the side view of the assembly, one of the support rod attachment area 242 and the handle attachment area 205 at least partially obstructs the view of the other of the support rod attachment area 242 and the handle attachment area 205.

[0325] In this example, in the stored state of the support rod (Figures 7A to 7E), the front wheel 286A of the front support rod 270A protrudes laterally from the seat 202 to a greater extent than the rear wheel 286B of the rear support rod 270B on the same side of the seat 202, and constitutes an additional side protection module. In some examples, the rear wheel may protrude laterally from the seat to a greater extent than the front wheel on the same side of the seat and constitute an additional side protection module.

[0326] The pivoting of the support rod between the operating state and the stored state has been described above with respect to the support rod 70 of the assembly 10, and the description also applies to the support rod 270. For example, the strut 270 pivots rearward toward the backrest portion 252 of the seat in a manner similar to strut 70 for maneuvering from an operating state to a stored state, such that in the stored state, the distal end 271 is positioned closer to the backrest portion 252 than the foot portion 254 of the seat 202.

[0327] The convertible infant safety car seat assembly according to the currently disclosed subject matter may include a zipper mechanism capable of independently zipping both the fabric cover and the top cover to their backrest portion. In fact, the zipper mechanism can be used with any infant seat having a detachably connected fabric cover and top cover, and therefore the following description should be considered applicable to any such seat having a backrest portion comprising a shell made of plastic having an outer side and an inner side, to which the fabric cover can be applied to at least partially cover the inner side of the shell. SeatThe plastic housing may include a rear wall and two side walls, each of which has corresponding inner and outer surfaces that merge at their respective upper edges. The respective upper edges of the rear wall and side walls merge together to form a continuous upper edge of the housing. In other words, the continuous upper edge of the housing is defined by the upper edges of the respective rear wall and side walls.

[0328] The zipper device may include two zippers, each of which is a separate zipper type. The zipper device may include a cover zipper and a top cover zipper, each having a housing zipper half sewn to the housing, for example along and adjacent to at least a portion of the upper edge of the housing, and a matching zipper half, the matching zipper half of the cover zipper being sewn to the fabric cover, and the matching zipper half of the top cover zipper being sewn to the top cover. In this way, both the fabric cover and the top cover can be zipped into the respective housing zipper sewn to the housing using their zipper components.

[0329] Each of the two halves of the top cover zipper and the cover zipper has a toothed portion with zipper teeth and a base without such teeth, the base being used to sew the zipper half to the outer shell or to sew the cover / top cover while keeping the toothed portion flapable. The outer shell zipper half of each of the cover zipper and the top cover zipper is sewn to the outer shell at its base by at least one seam. This allows the toothed portions of the outer shell halves of the cover zipper and the top cover zipper to flap independently of each other, so that they can be spaced apart when the cover and the top cover are joined.

[0330] The base of the outer shell zipper half of the top cover zipper may be located at least partially between the outer surface of the outer shell and the base of the outer shell zipper half of the cover zipper, for example, the base of the cover zipper. Alternatively, the outer shell zipper halves of the two zippers may be sewn together to the outer shell, i.e., sewn together to the outer shell by at least one common seam.

[0331] The teeth of the toothed portions of the outer shell halves of the two zippers may be spaced approximately the same or different distances from the upper edge of the outer shell. In the latter case, the teeth of the outer zipper half of the cover zipper can be spaced apart from the upper edge of the outer shell by a greater distance than the teeth of the top cover zipper. In any case, the toothed portions of the outer shell halves of the two zippers can generally be parallel to each other and parallel to the upper edge of the outer shell.

[0332] In some cases, the two zippers can be configured to fasten in opposite directions, for example, the top cover zipper can be configured to fasten from the first sidewall of the outer shell toward the second sidewall of the outer shell, and the cover zipper can be configured to fasten from the second sidewall of the outer shell toward the first sidewall. Such a device in which each zipper is fastened from a different direction can be conveniently used, for example, when attaching or removing the top cover or cover.

[0333] In some cases, the zippers are of different lengths. The top cover zipper can extend to a shorter length than the cover zipper, wherein the cover zipper extends further along both sidewalls of the outer shell. Optionally, the top cover zipper is at least partially stacked on top of the cover when fastened.Above the fastened cover zipper, so that when the cover is attached to the seat, only the cover zipper is visible from the outside of the seat. When the cover is attached, the cover zipper is inaccessible at least along a portion of its length. This reduces the likelihood of not wanting to remove the cover from the seat and prevents the cover from being removed before it has already been removed.

[0334] The cover zipper may be located on the backrest portion of the seat without extending further (e.g., the cover zipper does not extend to the foot portion). This can provide potential manufacturing advantages because the cover zipper is sewn to the housing along a shorter distance than would be required for the zipper to also extend to the foot portion.

[0335] Referring to Figures 8A, 8B, and 9, in the illustrated example of seat assembly 210, the upper seat 250 includes a backrest 252 having a housing 255 made of plastic to which a fabric cover 223 is removably applied. The plastic housing 255 of the backrest 252 typically comprises three walls: a rear wall 213 and two opposing side walls 204A, 204B, which are integrally formed to define the generally continuous and contoured body of the housing 255. Each of the rear wall 213 and the side walls 204 has a corresponding inner and outer surface, which merge to define the continuous outer edge or upper edge 204', 213' of the corresponding wall 204A, 204B, 213. The upper edges 204', 213' of the corresponding walls 204A, 204B, 213 merge together to form the generally continuous outermost upper edge of the housing 255.

[0336] FIG9 shows a portion of a housing 255 having a portion of a zipper device 200, through which a top cover 150 (not shown) and a fabric cover 223 can be independently zipped to along the upper edge of the housing 255. The upper edge (not shown) extends along the first sidewall 204A to the top of the rear wall 213, and then extends downward along the opposite sidewall 204B. The zipper device 200 is sewn to the housing 255 such that it extends side by side and travels adjacent to its upper edge, or at least along its main portion.

[0337] In the depicted example, a portion of the zipper device 200 is shown. A half 200A of the first zipper is configured to match a corresponding half of the first zipper (not shown) sewn to the top cover 150, and a half of the second zipper 200C is configured to match a corresponding half of the second zipper 200D sewn to the fabric cover 223. These two halves 200A, 200C of the zipper assembly 200 may be referred to as “outer shell zipper halves 200A, 200C” because they are sewn to the upper seat 250 and configured to provide zipper connections to the top cover 150 and the fabric cover 223, respectively.

[0338] The cover zipper is illustrated as being in a partially fastened state, such that at the portion constructed above the zipper pull 290,Half 200C and half 200D are pulled together, with their teeth meshing with each other. Below the zipper head, the two halves are separated from each other.

[0339] For the top cover zipper, only the outer shell half 200A of the zipper is shown, extending a shorter distance than the cover zipper (e.g., a shorter distance along the sidewall 204A). The zipper head 292 of the top cover zipper is shown at the beginning of the zipper teeth, and the zipper starter box 294 is located at the beginning of the zipper teeth.

[0340] The zipper half 200A configured to match the top cover 150 can be sewn closest to the upper edge of the outer shell 255, such that the zipper half 200A extends along a length and path directly adjacent to and parallel to the upper edge of the outer shell 255.

[0341] The zipper half 200C configured to match the fabric cover 223 can be spaced inwardly from the outer shell zipper half 200A.

[0342] In an example configuration of the zipper device, the two halves of the first and second zippers sewn to the outer shell can each be sewn together. In FIG. 9, the outer shell zipper half 200C of the cover and the outer shell zipper half 200A of the top cover are sewn together by a generally continuous fabric strip, such that the outer shell zipper halves 200A, 200C are generally adjacent to each other along their length. In this configuration, each of these outer shell zipper halves 200A, 200C is spaced apart from each other along their length, such that they travel along corresponding paths that are generally parallel to each other and along the upper edge of the shell 255 of the upper seat 250. The outer shell zipper half 200C zipped to the fabric cover 223 is spaced inwardly from the outer shell zipper half 200A zipped to the top cover 150.

[0343] The lengths of the outer shell zipper halves can be different. For example, the outer shell zipper halves do not necessarily extend to the same extent along the upper edge of the seat. For example, a zippered half of the outer shell configured to match the zippered half of the cover may extend along the upper edge of the outer shell to a first degree, which may be approximately or the entire length of the upper edge. Simultaneously, a zippered half of the outer shell configured to match the zippered half of the top cover may extend along the upper edge of the outer shell to a second degree, wherein the first degree is greater than the second degree. In other words, the length of the zippered half configured to be zipped to the top cover may be shorter than the length of the zippered half configured to be zipped to the fabric seat cover. This difference in zipper length corresponds to the size and placement of the fabric cover and the top cover.

[0344] Referring again to FIG9, the inner side of the upper seat 250 is configured to be substantially covered by a fabric cover 223 applied thereto. Thus, the zippered half 200C of the outer shell, sewn to the upper seat 250 and configured to be zipped to the fabric cover 223, is configured to extend substantially around the entire upper edge of the outer shell 255, such that the fabric cover 223 can be zipped along the entire length of the zippered half 200C to cover the inside of the upper seat 250.

[0345] A canopy (not shown) 150 configured to provide sun and / or rain protection can be set substantially from the upper seatThe upper region of 250 extends outward so that it extends within the upper seat 250 and at least covers the head, if not at least a portion of the infant's body. Thus, referring to FIG9, the outer shell zipper half 200A of the zipper to the top cover 150 begins slightly upward along the upper edge 204' of the side wall 204 of the outer shell 255. By comparison, the outer shell zipper half 200C of the zipper to the fabric cover 223 (Instruction manual 42 / 50 pages 44 CN 121375595 A) begins essentially at the lowest region of the upper edge 204' of the side wall 204 of the outer shell 255. In other words, the outer shell zipper half 200A configured to extend along the upper edge 213' of the rear wall 213 and downward along the corresponding upper edge 204' of each side wall 204. At least, the outer shell zipper half 200A connected to the zipper half of the top cover does not extend downwards to the upper edge 204' of the sidewall 204 as much as the outer shell zipper half 200C configured to zip to the fabric cover 223. Thus, the outer shell zipper half 200A configured to zip to the top cover 150 is sewn to the outer shell 255 so that it is directly adjacent to the upper edge of the outer shell 255. At the same time, the outer shell zipper half 200C configured to zip to the fabric cover 223 is sewn to the outer shell zipper half 200A so that it is spaced inwardly from the outer shell zipper half 200A along its length, so that the zipper half 200C extends along a length that is directly adjacent to and spaced inwardly from the outer shell zipper half 200A.

[0346] The cover zipper and the top cover zipper of the zipper device are configured such that their fastening directions are opposite. In the example shown, the zipper pull of the top cover zipper is configured to be pulled from side wall 204A toward side wall 204B (not shown in the figure) so that the top cover zipper is zipped closed; simultaneously, the zipper pull of the cover zipper is configured to be pulled out in the opposite direction from side wall 204B toward side wall 204A so that the cover zipper is zipped closed. Therefore, the starting box of the top cover zipper is constructed at the beginning of the top cover zipper teeth at side wall 204A; and the starting box of the cover zipper is constructed at the beginning of the cover zipper teeth at side wall 204B.

[0347] FIG10 also illustrates the zipper assembly. The outer shell zipper half 200A of the top cover zipper extends at least partially along the outermost upper edge of the outer shell 255. The outer shell zipper half 200C of the cover zipper is parallel to and spaced inwardly from the outer shell zipper half 200A, and extends a longer distance along the side wall (side wall 204A is shown here).

[0348] The outer shell zipper halves 200A and 200C are sewn to the plastic outer shell 255. Each zipper halves typically includes a flapper tooth portion 300 and a base (not visible) through which the zipper halves are attached to the outer shell. In Figure 10, a seam 302 is shown extending below the flapper tooth portion of the zipper halves and parallel to the outermost upper edge of the outer shell. (In this example, the outer shell zipper halves...)The flapper portion of 200A is folded around the seam portion, such that the seam is visible above and below the folded flapper portion. Optionally, the base of the outer shell zipper half is at least partially bound together by a binding member, such as a fabric binding member. In some embodiments, the binding members of the outer shell zipper half and their binding members are fitted into a designated recess, such as a stepped recess, formed along the outer shell near its upper edge. In this configuration, the binding member can be aligned with the upper edge of the outer shell so that it does not protrude above the outer surface of the outer shell. The binding member together with the outer shell zipper half can be attached to the outer shell by at least one common stitched seam. The advantage of placing the binding member within the recess also lies in the fact that a relatively thin plastic layer (defined by the stepped recess) creates a stitched seam for attaching the binding member to the plastic outer shell.

[0349] In this example, the above-described structure is illustrated in FIG10, which shows a cross-sectional view along the length of the backrest, including a portion of the zipper assembly. The outer shell zipper half 200A of the top cover zipper and the outer shell zipper half 200C of the cover zipper are shown. Each outer shell zipper half includes a flapping tooth portion 300 (only a single tooth of each outer shell zipper half is shown in this cross-sectional view) and a base 304. The two bases are bound together by a binding member 306 (e.g., a fabric binding member, ribbon, or tape). Optionally, the bases are welded to each other.

[0350] The device for binding the outer shell zipper half together is fitted within a designated stepped recess 308 formed in the plastic material of the outer shell 255 such that the device does not protrude beyond the surface of the outer shell, thereby defining a smooth outer profile. The recess 308 may extend along the length of the outermost upper edge of the outer shell.

[0351] One or more stitching seams (not shown in FIG. 11) stitch the device for binding the outer shell zipper half together to the plastic material of the outer shell. The stepped recess 308 shown in the figure includes: a first wall 309 through which the zipper assembly (together with the binding) is sewn to the housing (e.g., via one or more seams); and a second wall 311 traversing the first wall, which defines the height of the recess relative to the rearward surface of the outer side of the housing. The thickness of the binding can be similar to or less than the depth defined by the recess, so that the binding does not protrude outward from the housing surface. Furthermore, since the thickness of the housing decreases along the first wall of the recess, it facilitates sewing the zipper assembly to the plastic material of the housing at this wall.

[0352] Returning to Figure 11, in this example, the seam 302 consists of two seams, wherein a first inner seam holds the binding and base of the housing zipper half together, while a second outer seam holds the assembly of the bound housing zipper half to the plastic material of the housing at the recess.

[0353] The convertible infant safety car seat assembly according to the currently disclosed subject matter can swing on the external support surface when in storage mode and positioned on an external support surface, between at least one of a neutral position and a forward-tilting position and a rearward-tilting position.

[0354] Typically, the assembly may have one or more lowermost regions operable in the neutral position to contact the external support surface, which may be a platform, ground, floor, or any other suitable surface that allows the assembly to be positioned and swing thereon. The assembly may also have at least one front region and a rear region operable to contact the external support surface when the assembly tilts to a corresponding one of the forward-tilting position and the rearward-tilting position due to its swinging. For example, when the assembly is in the neutral position, the front region and / or the rear region may be positioned above the external support surface, and when the assembly tilts (or in other words, swings) to its forward-tilting position and / or rearward-tilting position, the front region and / or the rear region may contact the external support surface. The external support surface is typically conceivably represented by a reference surface that includes one or more lowermost regions of the component when the component is in a neutral position, and includes a front region and / or a rear region when the component is in a corresponding tilted position.

[0355] In some cases, one or more lowermost regions may include at least one of the following: the lowermost region of the seat, i.e., the lowermost region of the lower support member when the component is in a neutral position, and a first region of the support rod of the component that may be the lowermost region of the support rod (the lowermost region of the support rod) when the component is in a neutral position. For example, one or both of the lowermost regions of the lower support member and the lowermost regions of the support rod may constitute one or more lowermost regions of the component when the component is in a neutral position. In any case, the lowermost region of the support member, i.e., the lowermost region of the seat, is closest to the reference surface in the neutral position, regardless of whether it coincides with it. In other words, in cases where one or more lowermost regions of the component do not include the lowermost region of the seat, the lowermost region of the seat is the region of the lower support member that is positioned closest to the reference surface.

[0356] In some cases, the front and / or rear regions of the component may be constituted by at least one second region of at least one pair of supports (of a pair of front supports and a pair of rear supports), which can be positioned above the external support surface in a neutral state and operable in a forward-tilted and / or backward-tilted position to contact the external support surface, for example, by means of the bending shape of the supports. For example, the second regions(multiple) of the supports may extend further in a forward and / or backward direction than the corresponding front and / or rear portions of the lower support, thereby increasing the swing range of the component compared to the swing range in which only the lower support participates in the swing at its bent bottom. The swing range may be determined by the position of the component in a neutral state andThe total area or total bending length of the components that contact the external support surface during the full cycle of swaying between tilt positions is defined by the swaying of the components on the external support surface.

[0357] Therefore, the (multiple) second regions and the regions constituting the (multiple) lowermost regions of the component together form a continuous bending shape, at least as seen in the side view of the component. For example, in the case where the lowermost region of the seat partially or entirely constitutes the lowermost region of the component, the lowermost region of the seat and the (multiple) second regions of the support rod form a continuous bending shape in the side view of the component. Specification 44 / 50 pages 46 CN 121375595 A

[0358] In practice, the (multiple) second regions of the support rod may have a swaying participation portion on each of the (multiple) second regions. The swaying participation portion may be at least a portion of the support rod that participates in the swaying of the component, or in other words, that portion of the support rod that contacts the external support surface at least at some stage of swaying.

[0359] The support rod having the second region may also have at least one third region, which is spaced apart from the first and second regions and constitutes those regions of the support rod that do not contact the external support surface at any stage of the rocking assembly. In fact, the third regions that may not contact the external support surface at any stage of the rocking assembly may comprise the majority of the support rod. The rocking engagement portion may be made of a material that improves at least one rocking quality of the second region (or at least the rocking engagement portion) compared to the rocking quality of the second region (or at least the rocking engagement portion) (if the second region (or at least the rocking engagement portion) is made of the material that makes the third region). For example, the third region may be made of a material that does not require any improvement in rocking quality, at least because the third region may not contact the external support surface at any stage of the rocking assembly. Rocking quality can generally be a characteristic that contributes to providing a smooth and comfortable experience for a toddler positioned in the assembly.

[0360] In some cases, rocking quality may be a higher frictional capacity, such that the rocking engagement portion constitutes a friction-increasing portion. The friction-enhancing portion at the area in contact with the external support surface during rocking provides controlled rocking, such as speed, degree (range) of rocking, and prevents unintentional slippage of the component on the external support surface, thus providing a safe and comfortable rocking experience for the baby. The material from which the friction-enhancing portion is made may have a higher frictional capacity than the material of at least one third area or the area that remains in contact with the external support surface during rocking. It should be understood here that, for the purposes of this specification, comparisons between the frictional capacities of any two materials are considered to be made under all those conditions that can affect frictional capacity, such as for the same external support surface. For example, the frictional capacity of the material used to manufacture the friction-enhancing portion..."Higher than any other material" means that the material used to manufacture the friction-increasing portion has a higher frictional capacity than other materials measured under the same conditions, physical properties, and environment when using the same external support surface. In other words, the material of the friction-increasing portion is more conducive to friction between the friction-increasing portion and the external support surface than the friction between the (multiple) third regions (or other regions of the support that are not in contact with the external support surface) and the external support surface.

[0361] In some cases, the swaying quality can be soft, such that the swaying participation portion constitutes a soft contact portion. The soft contact portion at the region that contacts the external support surface during swaying provides a softer contact with the external support surface, thereby swaying more smoothly and in a controlled manner, for example, by damping the swaying as the component approaches its tilted position. It should be understood here that the material used to manufacture the friction-increasing portion can, for example, improve the swaying quality described above, i.e., provide a friction-increasing portion that also serves as a soft contact portion.

[0362] In practice, all regions, such as one or more bottommost regions, whether constituted by any one or both of the lower support and the bracket, can have a rocking engagement portion similar to the portion described above with respect to the second region(s), and all descriptions of the rocking engagement portion described above with respect to the second region(s) will apply to the rocking engagement portion of one or more bottommost regions of the assembly. For example, the rocking engagement portion of one or more bottommost regions of the assembly can be made of a material different from that of at least one other region of the assembly (which remains non-contact with the external support surface during rocking and can constitute a large portion of at least one of the lower support and the strut), and can improve at least one rocking quality, for example, by means of a rocking engagement portion that would have if it were made of the material used to manufacture the other region. Rocking quality is at least one of the following: higher frictional capacity, such that the rocking engagement portion constitutes a friction-increasing portion in the same manner as described above with respect to the second region(s); and softness, such that the rocking engagement portion constitutes a soft contact portion in the same manner as described above with respect to the second region(s). The material of the rocking engagement portion of one or more bottommost regions can be the same as or different from the material of the rocking engagement portion of the second region(s). Instruction manual, pages 45 / 50, CN 121375595 A

[0363] In some cases, the material of the area that remains in contact with the external support surface includes: plastic, aluminum, or any other metal / alloy, or any other material that is hard enough to provide strength to the component and light enough to allow the component to be carried by a person. The material of the area in contact with the external support surface (the rocking engagement portion) may include a softer material, such as rubber or any other material suitable for providing the aforementioned rocking mass. In addition to the rocking mass, the material of the rocking engagement portion provides resistance / prevention of impact with the external support surface.Resistance / prevention of mechanical damage to the strut and / or lower support, such as due to wear and tear, and mechanical damage to the external support surface, for example, when the external support surface includes a pad or soft overlay, and mechanical damage to the vehicle seat when the assembly is positioned on the vehicle seat.

[0364] During operation of the assembly as a rocker, i.e., when the assembly is positioned on the external support surface in its storage mode and in a neutral position, one or more lowermost regions contact the external support surface (which coincides with a reference plane). When the assembly swings toward its tilted position (tilts / raises), initially one or more lowermost regions (due to their curved shape) participate in the swing. Once the (multiple) second regions contact the external support surface, and due to the curved shape of the strut, they allow the assembly to further raise toward its tilted position, thereby increasing the swing range compared to the case where only one or more lowermost regions participate. The wheels of the strut constitute limiters for constraining the swing of the assembly in the tilted position, thereby limiting the range and extent of the swing. In some examples, the wheels can be detached from the strut, and in these examples, the distal end of the strut will serve as a limiter. The diameter of the distal end can be smaller than the diameter of the wheel, so that the range of swing can be further increased when the wheel is detached.

[0365] In this example shown in Figures 12A to 12E, the convertible infant car seat assembly 210 has been shown in its storage mode (similar to the mode of assembly 10 shown at least in Figure 1A) and can have an operating mode (similar to the mode of assembly 10 shown at least in Figures 1B to 1D). Assembly 210 has a horizontal reference surface 234 (also referred to herein as “reference surface”, “reference plane”, and “horizontal reference surface”, all of which are used interchangeably), which is represented as the external support surface 234 in Figures 12A to 12D, and is capable of swinging on the external support surface 234 between a neutral position (shown in Figures 12A and 12D) and a reclined position (shown in Figures 12B and 12C). The lower support 230 includes a curved bottom 233 having a lowermost region 232 of the seat, which in the illustrated example constitutes one or more lowermost regions of component 210. For example, as shown in Figures 12A and 12D, in a neutral position, reference surface 234 includes the lowermost region 232 of the seat. The lower support 230 also includes a rear portion 238 and a front portion 239, with the curved bottom 233 extending between the rear portion 238 and the front portion 239 and at least partially facilitating the rocking of component 210.

[0366] The upper seat 250 includes a backrest portion 252 associated with the rear portion 238 of the lower support 230 and a front foot portion 254 associated with the front portion 239 of the lower support 230. A toddler can sit in the upper seat 250 with his / her feet positioned toward the front foot portion 254 and rearward toward the backrest portion 252.

[0367] Component 210 also includes a support 270 having a distal end 271 with wheels 278 and a proximal end 272 pivotally hinged to the lower support 30, the wheels 278 being detachably or fixedly connected to the support 270. The struts 270 are operable between a storage state associated with at least a storage mode of the component and an operating state associated with at least an operating mode of the component. In the storage state, at least a portion of the wheels on each strut is above a reference plane 234 (as shown in Figures 12A to 12D), and in the operating state, at least said portion of the wheels on each strut is below the reference plane 234, thereby allowing the seat assembly to roll via the wheels, for example, as described above with respect to the struts 70 of component 10.

[0368] The struts 270 constitute a pair of front struts 270A and a pair of rear struts 270B. In the illustrated example, the front struts 270A have a curved shape and participate in the rocking motion of the component as described below. It should be understood that in some examples, a rear strut may be formed in addition to or as a replacement for the front strut to participate in the swing.

[0369] In this example, the front strut 270A has a first region 273, which is also the lowest region 273 of the strut. In the example illustrated on pages 46 / 50 of the specification, this region also constitutes another of one or more lowest regions of the assembly. For example, as shown in Figures 12A and 12D, in the neutral position, the lowest region 273 of the strut is positioned above and coincides with the reference surface 234. In some examples, the first region may not constitute the lowest region of the strut, or it may constitute the lowest region of the strut but may not constitute one or more lowest regions of the assembly. For example, the first region may be located above and not coincide with the reference surface 234.

[0370] In this example, the front strut 270A has a second region 275, which also constitutes the rear region 275 of the assembly 210 and thus participates in the swaying of the assembly. For example, as shown in Figures 12B and 12C, in the rearward tilt position, the second region 275 coincides with the reference surface 234, i.e., operable to contact the outer support surface 234 when the assembly is positioned on the outer support surface 234 and in the rearward tilt position. The second region 275 further extends in the rearward direction RD along the rear portion 238 of the lower support 230 and forms a continuous curved shape with one or more lowermost regions of the assembly (best shown in Figure 12E), which in the illustrated example includes the lowermost seat region 232 and the first region 273 of the front strut 270A in the side view of the assembly 210. In the illustrated example, since the first region 273 also participates in the swaying of the assembly, the second region 275 is adjacent to the first region 273 and may even partially overlap with it. In some examples, the first region and the second region can be spaced apart.

[0371] In this example, the front strut 270A has a third region 277 spaced apart from the first region 273 and the second region 275. It should be understood here that although in the illustrated example the third region 277 is shown facing away from the reference surface 234, in some examples it may face the reference surface 234 and may be positioned at a portion of the strut that will not contact the external support surface during swaying, for example at or near the distal end of the strut, which may not contact the external support surface due to the presence of the wheel. In fact, any such region of the support can constitute a third region that will not contact the external support surface during swaying of the assembly.

[0372] The front strut 270A may be made of a first material, which may also be the material used to make the third region 277. In fact, the third region 277 may constitute a large portion of the front strut 270A. The second region 275 has a sway-involving portion 275A made of a second material different from the first material. Compared to the rocking participation portion 275A when it is made of a first material, the second material improves at least one rocking quality of the rocking participation portion 275A. For example, the second material may have a higher frictional capacity and / or may be softer than the first material compared to the first material. Therefore, the rocking participation portion 275A may constitute a friction-increasing portion and / or a soft contact portion.

[0373] The lower support 230 includes another region 240 spaced apart from the lowermost region 232 of the seat. It should be understood here that although in the illustrated example the other region 240 is shown not facing the reference surface 234, in some examples it may face the reference surface 234 and may be positioned at portions of the lower support that will not contact the external support surface during rocking, such as at the curved bottom 233, at portions that may not contact the external support surface, for example, because the lowermost region 232 of the seat is formed to protrude toward the reference surface relative to other portions of the curved bottom 233. Such other portions of the curved bottom may constitute other regions. Another region 240 can be considered together with the third region 277, at least because both regions represent those areas of the strut and lower support that will remain in contact with the external support surface during the swaying of the assembly on the external support surface. Therefore, the other region 240 can constitute a large portion of the strut 270A and the lower support 240.

[0374] The lower support 230 can be made of a third material, which can also be the material used to make the other region 240. The lowest region 232 of the seat has a sway-involving portion 232A made of a fourth material different from the third material. Compared to the sway-involving portion 232A having a swaying mass when made of the third material, the fourth material...For example, the fourth material may improve at least one swing quality of the swing-involving portion 232A. For example, compared to the third material, the fourth material may have a higher frictional capacity and / or may be softer than the third material. Therefore, the swing-involving portion 232A may constitute a friction-increasing portion and / or a soft contact portion.

[0375] In this example, since the first region 273 of the front strut 270A also constitutes one or more lowermost regions of the assembly 210 and participates in its swing, the first region also has a swing-involving portion 273A made of a fifth material different from the first and third materials. Compared to the swing quality of the swing-involving portion 273A when it is made of the first or third material, the fifth material may improve at least one swing quality of the swing-involving portion 273A. For example, compared to the first and third materials, the fifth material may have a higher frictional capacity and / or may be softer than the first and third materials. Therefore, the rocking engagement portion 273A can constitute a friction-increasing portion and / or a soft contact portion.

[0376] It should be understood here that the first and third materials can be the same or different, and can include plastic, aluminum, or any other metal / alloy or any other material that is hard enough to provide strength to the assembly and light enough to allow the assembly to be carried by a person. The second, fourth, and fifth materials can be the same or different, and can include softer materials, such as rubber or any other material suitable for providing the aforementioned rocking mass. In fact, in this example, the rocking engagement portion 273A of the first region 273 and the rocking engagement portion 275A of the second region are continuously formed on the surface of the front strut 270A facing the reference surface 234.

[0377] In this example, the rocking engagement portion has been shown in the form of a pad attached to the corresponding component (strut and lower support). It should be understood here that some or all of the rocking engagement portions can be formed within the corresponding component, rather than being attached to the corresponding component in the form of a pad. For example, the lower support and / or strut may include a recess to receive the rocking engagement portion therein. In some examples, some or all of the rocker-involved portions may be integrally formed with the corresponding components. In some examples, some or all of the rocker-involved portions may be integrally formed with the corresponding components.

[0378] During operation of the component 210 as a rocker arm, i.e., when the component 210 is positioned on the external support surface in its storage mode and in a neutral position, the lowermost region 232 and the first region 273 of the curved bottom 233 of the lower support 230 contact the external support surface (which coincides with the reference surface 234). When the component 210 rocks (tilts / lifts) toward its rearward tilted position, the initially curved bottom 233 (due to its curved shape) and the first region 273 participate in the rocker. Once the lower support 230 is rearward...Part 238 contacts the external support surface, while the second region 275 (which extends further rearward than the rear part 238 and is curved) contacts the external support surface, and due to the curved shape of the front strut 270A, the assembly 210 is allowed to tilt further toward its rearward tilt position, thereby increasing the range of sway compared to a range of sway where only the lower support is involved. The wheel 286A of the front strut 270A constitutes a limiter for restraining the sway of the assembly in the rearward tilt position, thereby limiting the range and degree of sway. In some embodiments (as shown in Figures 13A to 13F), the wheel 286A can be detached from the strut, and in these examples, the distal end 271 will serve as a limiter. The diameter of the distal end 271 is smaller than the diameter of the wheel 286A, thus further increasing the range of sway when the wheel is detached.

[0379] Convertible infant safety car seat assemblies according to the currently disclosed subject matter may include one or more wheels connected to the respective struts via a quick-release mechanism. For example, when the seat assembly is used in its car seat installation or storage mode, the wheels can be detached from the assembly. The wheels are detachable to prevent children sitting near the seat assembly or the car seat itself from being soiled / damaged / injured by the wheels when the assembly is positioned in a car.

[0380] In this example shown in Figures 13A to 13F, the convertible infant safety car seat assembly 210 includes: a lower support 230 having a rear portion 238 and a front portion 239 and a horizontal reference surface 234 passing through the lowermost region 232 of the lower support 230 (also referred to herein as the lowermost seat region 232). An upper seat 250 is connected to the lower support 230 such that the backrest portion 252 of the upper seat 250 is connected to the rear portion 238 of the lower support 230 and the foot portion 254 of the upper seat 250 is connected to the front portion 239 of the lower support 230.

[0381] Component 10 also includes support rods 270 having wheels 286, which are operable between the storage state and the operating state shown in Figures 13A to 13E. It should be understood here that support rods 270 may include some or all of the features of support rod 70 described above with respect to component 10, and at least the description of the operation of support rod 70 between the storage state and the operating state also applies to support rod 270, and will not be repeated here for the sake of brevity. For example, in the storage state of support rod 270, wheels 286 are positioned above reference surface 234, and component 210 is adapted to be positioned inside a vehicle or on a support surface in a position suitable for securing a child therein, and in the operating state of support rod 270, wheels 286 may be positioned below reference surface 234, thereby allowing seat component 210 to roll by means of wheels 286.

[0382] The support rods 270 constitute a pair of front support rods 270A with a front wheel 286A and a pair of rear support rods 270B with a rear wheel 286B. Typically, at least one of the pair of front support rods 270A and the pair of rear support rods 270B is capable of pivoting rearward toward the backrest portion 252 in a manner similar to support rod 70, to be manipulated from an operating state to a stored state, in which the wheel 286 is positioned closer to the backrest portion 252 than the foot portion 254. In this example, both the pair of front support rods 270A and the pair of rear support rods 270B are capable of pivoting rearward toward the backrest portion 252 to be manipulated from an operating state to a stored state, in which the wheel 286 is positioned closer to the backrest portion 252 than the foot portion 254. In some examples, only the front strut 270A is able to pivot rearward, and in the stored state, the front wheel 286A is positioned closer to the backrest portion 252 than the foot portion 254.

[0383] In this example, as seen in FIG13C, in the stored state of the strut 270, the front wheel 286A protrudes laterally (in the lateral direction indicated by arrow LT) relative to the lower support 230 to a greater extent than the rear wheel 286B in the rear view of assembly 210 (FIG13C). In this example, the front wheel 286A is connected to the front strut 270A via a quick-release mechanism. In some examples, the rear wheel 286B may also be connected to the rear strut 270B via a quick-release mechanism with any suitable structure to allow for the connection and disconnection of the rear wheel while allowing the wheel to roll when connected.

[0384] Typically, the front wheel 286A can be connected to the front strut 270A via a quick-release mechanism that allows the wheel to be removed in a wheel removal direction that extends laterally relative to the lower support 230 (e.g., parallel to the lateral direction indicated by arrow LT). Removing the wheel in the lateral direction after the assembly is positioned in the vehicle allows a person seated in the vehicle adjacent to the assembly to remove the wheel.

[0385] Each front wheel can be detachably connected to its corresponding strut in the same manner; however, for simplicity, only one front wheel is described herein. The front wheel 286A may include a strut connecting element that extends along the wheel removal direction when the wheel is connected to the corresponding strut, and the corresponding front strut 270A may include a wheel connecting element extending along the wheel removal direction. The strut connecting element and the wheel connecting element can constitute a quick-release mechanism and can have any suitable configuration to allow detachable connection to each other, thereby allowing the wheel to rotate together with the strut connecting element about a wheel rotation axis parallel to the wheel removal direction. For example, the strut connecting element and the wheel connecting element can form a pair of elongated recesses and elongated protrusions, one of which can be on the wheel and the other on the strut. In some examples, the strut connecting element and the wheel connecting element can form a mechanical connection, an electrical connection, or a magnetic connection.The two components are detachably connected to each other, thereby allowing rotation of the wheel relative to the strut.

[0386] The quick-release mechanism includes a release actuator for actuating the strut connecting element to release from the wheel connecting element. For example, the release actuator may be in the form of a button or lever (mechanical or electronic / electric), which can be actuated by a user to remove the wheel. The release actuator may be positioned at any location on the strut or wheel that is suitable for user access to the release actuator and sufficiently concealed to prevent unintentional actuation of the wheel's release.

[0387] In this example, when the front wheel 286A is connected to the strut 270A, the front wheel 286A has a strut connecting element 287 in the form of an elongated protrusion extending parallel to the wheel removal direction WR. The front strut 270A includes an elongated wheel connecting element 288 in the form of an elongated recess extending parallel to the wheel removal direction. The protrusion 287 and the recess 288 constitute a quick-release mechanism that allows the wheel to rotate about the wheel's axis of rotation WA. To connect the front wheel 286A to the front strut 270A, the protrusion 287 is inserted into the recess 288, locking the protrusion 287 in the recess 288, thereby securely connecting the wheel 286A to the strut 270A and allowing the front wheel 286A to rotate relative to the strut 270A.

[0388] The quick-release mechanism includes a release actuator 289, which is in the form of a button positioned in the front strut 270A. To remove the wheel 286A from the strut 270A, the button 289 is pressed, actuating the release of the wheel 286A by releasing the protrusion 287 from the recess 288, allowing the wheel 286A to be removed in the wheel removal direction WR.

[0389] Typically, wheel 286 includes: a rolling area configured to contact a support surface when component 210 rolls thereon by means of wheel 286; and a remaining area configured not to contact the support surface when component rolls thereon. Wheel 286 may include a wheel retaining portion located in the remaining area and adapted to be held by a user for at least the purpose of removing wheel 286 from the corresponding strut 270. The remaining area may be at or near the center of the wheel, and the wheel retaining portion may be formed of a center disc or a portion thereof. The wheel retaining portion allows the user to hold the wheel, for example, to remove the wheel from the strut without contacting the dirty rolling area of ​​the wheel.

[0390] In this example, front wheel 286A includes a rolling area 293 and a remaining area 295 having a wheel retaining portion 295A adapted to be held by a user for at least the purpose of removing wheel 286A from the corresponding front strut 270A. Instruction manual, 50 / 50 pages, 52 CN 121375595 A, Figure 1A, Figure 1B, Instruction manual drawings, 1 / 36 pages53 CN 121375595 A Figure 1C Figure 1D Instruction Manual Drawings 2 / 36 pages 54 CN 121375595 A Figure 1E Figure 2A Instruction Manual Drawings 3 / 36 pages 55 CN 121375595 A Figure 2B Figure 3A Instruction Manual Drawings 4 / 36 pages 56 CN 121375595 A Figure 3B Instruction Manual Drawings 5 / 36 pages 57 CN 121375595 A Figure 3C Instruction Manual Drawings 6 / 36 pages 58 CN 121375595 A Figure 3D Figure 3E Instruction Manual Drawings 7 / 36 pages 59 CN 121375595 A Figure 4A Instruction Manual Drawings 8 / 36 pages 60 CN 121375595 A Figure 4B Figure 4C Instruction Manual Drawings 9 / 36 pages 61 CN 121375595 A Figure 4D Figure 4E Instruction Manual Drawings 10 / 36 pages Page 62 CN 121375595 A Figure 4F Figure 4G Instruction Manual Drawings 11 / 36 Page 63 CN 121375595 A Figure 5A Instruction Manual Drawings 12 / 36 Page 64 CN 121375595 A Figure 5B Figure 5C Instruction Manual Drawings 13 / 36 Page 65 CN 121375595 A Figure 6 Instruction Manual Drawings 14 / 36 Page 66 CN 121375595 A Figure 7A Instruction Manual Drawings 15 / 36 Page 67 CN 121375595 A Figure 7B Instruction Manual Drawings 16 / 36 Page 68 CN 121375595 A Figure 7C Instruction Manual Drawings 17 / 36 Page 69 CN 121375595 A Figure 7D Instruction Manual Drawings 18 / 36 Page 70 CN 121375595 A Figure 7E Instruction Manual Drawings 19 / 36 Page 71 CN 121375595 A Figure 7F Instruction Manual Appendix 20 / 36 Page 72 CN 121375595 A Figure 7G Figure 7H Instruction Manual Appendix 21 / 36 Page 73 CN 121375595 A Figure 8A Instruction Manual Appendix 22 / 36 Page 74 CN 121375595 A Figure 8B Instruction Manual Appendix 23 / 36 Page 75 CN 121375595 A Figure 9 Instruction Manual Appendix 24 / 36 Page 76 CN 121375595 A Figure 10 Instruction Manual Appendix 25 / 36 Page 77 CN121375595 A Figure 11, Instruction Manual Appendix, Page 26 / 36, 78 CN 121375595 A Figure 12A, Instruction Manual Appendix, Page 27 / 36, 79 CN 121375595 A Figure 12B, Instruction Manual Appendix, Page 28 / 36, 80 CN 121375595 A Figure 12C Figure 12D, Instruction Manual Appendix, Page 29 / 36, 81 CN 121375595 A Figure 12E, Instruction Manual Appendix, Page 30 / 36, 82 CN 121375595 A Figure 13A, Instruction Manual Appendix, Page 31 / 36, 83 CN 121375595 A Figure 13B, Instruction Manual Appendix, Page 32 / 36, 84 CN 121375595 A Figure 13C, Instruction Manual Appendix, Page 33 / 36, 85 CN 121375595 A Figure 13D, Instruction Manual Appendix, Page 34 / 36, 86 CN 121375595 A Figure 13E Instruction sheet with drawing 35 / 36 page 87 CN 121375595 A Figure 13F Instruction sheet with drawing 36 / 36 page 88 CN 121375595 A {PURLE-26033-HKSPT / 02500954v1} Abstract A convertible baby safety car seat assembly comprising an upper seat manipulable between an upright state and an extended state, and legs having distal ends with wheels and manipulable between a storage state which is combinable only with the upright state of the upper seat, and an operational state allowing the seat assembly to be rolled by means of said wheels; the extended state of the upper seat being combinable only with the operational state of the legs, whilst the operational stateof the legs and the upright state of the upper seat being also combinable at least with each other. The convertible baby safety car seat assembly can comprise at least one of the following features: spaced apart seat and legs manipulation mechanisms; a side protection module; a zipper arrangement for detachably connecting a cover of the seat and a canopy; and removable wheels.

Claims

1. A convertible infant safety car seat assembly, comprising: A lower support member having a front portion, a rear portion, and a reference surface that extends horizontally through the lowest region of the lower support member; An upper seat, which is connected to the lower support and has a backrest portion associated with the rear of the lower support and a foot portion associated with the front of the lower support; A support rod with wheels is operable between a stored state and an operating state, in which at least the wheels are above a reference surface and the assembly is adapted to be positioned within a vehicle or on a support surface in a position suitable for securing a child therein; in the operating state, at least the wheels are below the reference surface so that the seat assembly can roll by the wheels; the support rod constitutes a pair of rear support rods associated with the rear wheels and a pair of front support rods associated with the front wheels, the front wheels projecting laterally from the lower support member in the stored state of the front wheels to a greater extent than the rear wheels, at least in the rear view of the assembly; the front support rods are pivotable for operable from the operating state to the stored state, such that in the stored state, the front wheels are positioned closer to the backrest portion than the feet; Wherein, at least the front wheel is connected to the front strut via a quick-release mechanism and is removable from the front strut in a wheel removal direction that extends laterally relative to the lower support member; Each of the front wheels includes a strut connecting element extending along the wheel removal direction when the front wheel is connected to a corresponding front strut, and each of the front struts includes a wheel connecting element extending along the wheel removal direction. The strut connecting element and the wheel connecting element are detachably connectable to each other, thereby allowing the wheel to rotate together with the strut connecting element about a wheel rotation axis parallel to the wheel removal direction relative to the wheel connecting element; the strut connecting element and the wheel connecting element at least partially constitute the quick-release mechanism.

2. The component according to claim 1, wherein, Each of the front wheels includes: a rolling area configured to contact the support surface as the component rolls on the support surface via the wheel; and a remaining area configured not to contact the support surface as the component rolls on the support surface, each of the front wheels including a wheel retaining portion positioned in the remaining area, the wheel retaining portion being adapted to be held by a user for at least the purpose of removing the front wheel from the corresponding front strut.

3. The component according to claim 1 or 2, wherein, The quick-release mechanism further includes a release actuator for actuating the bracket connecting element to release from the wheel connecting element.

4. The component according to claim 3, wherein, The release actuator is positioned at one of the front wheel and the corresponding front strut.

5. The component according to any one of claims 1 to 4, wherein, Each of the front wheels includes: a rolling area configured to contact the support surface when the component rolls on the support surface by means of the wheel; and a remaining area configured not to contact the support surface when the component rolls on the support surface, each of the front wheels including a wheel retaining portion positioned in the remaining area, the wheel retaining portion being adapted to be held by the user for at least the purpose of removing the wheel from the corresponding front strut.

6. The component according to any one of claims 1 to 4, wherein, The rear wheel is connected to the rear strut via a quick-release mechanism.

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