Automatic shoulder strap spring-outward mechanism and child safety seat

Abstract

An automatic shoulder strap spring-outward mechanism and a child safety seat. The automatic shoulder strap spring-outward mechanism comprises a headrest assembly (10), sheath assemblies (20), and elastic members (30). The headrest assembly (10) is adapted to be connected to a backrest of a seat. Each sheath assembly (20) comprises a sheath body (22) and a flexible mounting sleeve (21). The sheath body (22) is adapted to be connected to a shoulder strap. The flexible mounting sleeve (21) extends in the length direction of the sheath assembly (20) and is connected to the sheath body (22). A slot suitable for mounting a corresponding elastic member (30) is formed inside the flexible mounting sleeve (21). The elastic member (30) is connected to the headrest assembly (10). The elastic member (30) is suitable for driving the sheath assembly (20) and the shoulder strap to spring outward, so that a passenger can get in and out of the seat. The child safety seat uses the automatic shoulder strap spring-outward mechanism. The present invention has the characteristics of having a simple structure and being convenient for passengers to get in and out of the seat.

Description

Shoulder belt automatic pop-up mechanism and child safety seat Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to an automatic pop-up mechanism for shoulder straps and a child safety seat. Background Art

[0002] A child safety seat is a child restraint system used in conjunction with a car seat. It secures the child to the child safety seat through a safety belt, including a shoulder strap. It supports and envelops the child, providing a comfortable ride and safety protection while the car is in motion, effectively preventing accidents involving children.

[0003] The seat belts of child safety seats are divided into three-point, four-point, five-point and other types. When children get in and out of child safety seats, they need to manually open the seat belts first, especially the five-point seat belts, which have more belts and are easily entangled with each other, making it inconvenient for parents to put children in or take them out of the safety seat. Summary of the Invention

[0004] One purpose of the present application is to provide an automatic shoulder strap pop-up mechanism, which enables the shoulder strap to automatically pop open when it is not inserted into the buckle, so that passengers can get in and out of the seat.

[0005] Another object of the present application is to provide a child safety seat that makes it easy for children to get in and out of the safety seat.

[0006] In order to achieve one of the purposes of this application, the technical solution adopted in this application is: a shoulder strap automatic pop-up mechanism, which includes a headrest assembly, a cover assembly and an elastic member, the headrest assembly is suitable for connecting to the backrest of the seat, the cover assembly includes a cover body and a flexible mounting cover, the cover body is suitable for connecting to the shoulder strap, the flexible mounting cover extends along the length direction of the cover assembly and is connected to the cover body, and a slot suitable for installing the elastic member is formed inside the flexible mounting cover, the elastic member is connected to the headrest assembly, and the elastic member is suitable for driving the cover assembly and the shoulder strap to pop open so that passengers can get in and out of the seat.

[0007] As a preferred embodiment, the flexible mounting sleeve includes a first extension section and a second extension section arranged in sequence along the length direction of the slot, the first extension section is connected to the sleeve main body, the second extension section is suitable for being connected to the headrest assembly along with the elastic member, an end limit portion is provided at one end of the second extension section away from the first extension section, an opening connected to the slot is provided on a side of the end limit portion close to the first extension section, the elastic member is suitable for entering and exiting the slot through the opening, and the end limit portion is suitable for fixing the end of the elastic member.

[0008] As a preference, the elastic member is a rod-shaped structure.

[0009] As a preference, one end of the sheath assembly is provided with a connector suitable for connecting to the headrest assembly, and the other end is suitable for being driven to spring open by the elastic member.

[0010] Preferably, the connecting piece is one or more of Velcro, buttons, laces, hooks, and buckles, so as to be detachably connected to the headrest assembly.

[0011] As a preference, a guide groove is provided on the headrest assembly, the elastic member is suitable for being inserted into the guide groove, and the extending direction of the guide groove defines the springing direction of the elastic member.

[0012] As a preference, the guide groove extends obliquely upward to guide the elastic member to spring open to the side and upward.

[0013] Preferably, the headrest assembly includes a shell and a cover installed on the outside of the shell, and the elastic member is connected to the shell or the cover.

[0014] Preferably, two cover assemblies are provided, and the two cover assemblies are connected to the headrest assembly through different elastic members respectively, and the two cover assemblies are suitable for springing away from each other under the action of the corresponding elastic members.

[0015] In order to achieve one of the purposes of this application, the technical solution adopted in this application is: a child safety seat, which uses any of the above-mentioned shoulder strap automatic pop-up mechanisms.

[0016] Compared with the prior art, the advantages of this application are: (1) the shoulder straps can be automatically opened, making it easier for passengers to get in and out of the seat. For example, when a child needs to enter the safety seat, the elastic member can push the shoulder straps outward through the sheath assembly, fully exposing the backrest and seat cushion so that the child can quickly get in or out of the seat. In addition, for five-point safety belts, the problem of the shoulder straps easily getting tangled or knotted with the crotch straps can be solved, reducing the steps and time required to tie the safety belts. (2) The overall structure of the mechanism is simple, easy to assemble and use, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a child safety seat according to an embodiment of the present application;

[0018] FIG2 is a schematic structural diagram of a child safety seat according to an embodiment of the present application when the shoulder straps are deployed;

[0019] 3-5 are schematic diagrams showing the process of installing the elastic member to the sheath assembly in one embodiment of the present application;

[0020] FIG6 is a schematic diagram of the process of installing the cover assembly and the elastic member in the headrest assembly according to one embodiment of the present application;

[0021] FIG7 is a schematic structural diagram of a child safety seat in another embodiment of the present application when the shoulder straps are deployed;

[0022] FIG8 is a schematic diagram of the assembly steps of the child safety seat shown in FIG7 ;

[0023] In the figure: 10, headrest assembly; 101, hook; 102, guide groove; 11, shell; 12, outer cover; 20, cover assembly; 21, flexible mounting sleeve; 210, slot; 211, first extension section; 212, second extension section; 2120, opening; 2121, end limit portion; 22, cover body; 23, hook; 30, elastic member. DETAILED DESCRIPTION

[0024] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0027] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0028] The present application provides an automatic shoulder strap release mechanism, as shown in Figures 1-8. The mechanism comprises a headrest assembly 10, a cover assembly 20, and an elastic member 30. The headrest assembly 10 is adapted to be connected to a seat backrest, and the cover assembly 20 is adapted to be connected to a shoulder strap. The cover assembly 20 is provided with an elastic member 30, which is connected to the headrest assembly 10. The elastic member 30 is adapted to cause the cover assembly 20 and the shoulder strap to release, facilitating entry and exit of a passenger. This application is a simple modification of the existing shoulder strap system provided with the cover assembly 20. The elastic member 30 is added to the shoulder strap and connected to the headrest assembly 10. The headrest assembly 10 can be used to impart an initial orientation to the elastic member 30. When the shoulder strap is unfastened, the elastic member 30's rebound ability automatically pulls the cover assembly 20 and the shoulder strap outward, supporting them in the released position. The overall structure is simple, easy to assemble and use, and has low operating costs. This automatic shoulder strap release mechanism facilitates passenger entry into the seat. For example, when a child enters the safety seat, the elastic member 30, through the cover assembly 20, pushes the shoulder straps outward, fully exposing the backrest and seat cushion, allowing the child to sit in the safety seat independently. Alternatively, a parent can quickly place the child in the safety seat without having to remove the shoulder straps. Furthermore, for five-point safety belts, this mechanism eliminates the problem of the shoulder straps becoming tangled or tangled with the crotch strap, eliminating the need to straighten the belt. When a passenger enters the seat and inserts the safety belt into the corresponding buckle, the shoulder straps are pulled and held in place by the buckle. The cover assembly 20 follows the movement of the shoulder straps, applying pressure to the elastic member 30. This pressure causes the elastic member 30 to bend and deform, allowing the cover assembly 20 and the shoulder straps to conform to the passenger's body. When the passenger prepares to leave the seat, they release the buckle. The shoulder straps are no longer restrained by the buckle, and the elastic member 30 tends to return to its original shape. The elastic member 30 then forces the cover assembly 20 and the shoulder straps to release outward, allowing the passenger to quickly exit the seat.

[0029] In some embodiments, two cover assemblies 20 are provided, and the two cover assemblies 20 are respectively connected to the headrest assembly 10 through different elastic members 30 . The two cover assemblies 20 are suitable for springing away from each other under the action of the corresponding elastic members 30 .

[0030] In some embodiments, the cover assembly 20 is provided with a flexible mounting sleeve 21, which extends along the length of the cover assembly 20 and defines a slot 210 within the flexible mounting sleeve 21 for mounting the elastic member 30. In this application, the elastic member 30 is connected to the cover assembly 20 along its length. In other words, one end of the cover assembly 20 is indirectly connected to the headrest assembly 10 via the elastic member 30, while the other end is adapted to spring open at a relatively large angle under the guidance of the elastic member 30. Furthermore, the elastic member 30 plugs into the flexible mounting sleeve 21, providing a simple connection and ease of assembly.

[0031] In some embodiments, the sheath assembly 20 includes a sheath body 22, through which the shoulder straps are threaded, and which is connected to the flexible mounting sleeve 21. Specifically, the flexible mounting sleeve 21 and the sheath body 22 may be integrally formed. Alternatively, the flexible mounting sleeve 21 may be a separately manufactured component and then attached to the sheath body 22 by methods such as sewing, button fastening, or heat-pressing.

[0032] In an optional embodiment, the flexible mounting sleeve 21 is made of flexible fabric. In this application, the term "flexible" refers to a structure that is suitable for deformation. For example, the flexible mounting sleeve 21 means that the portion is suitable for deformation along with the elastic member 30 .

[0033] In some embodiments, at least a portion of the flexible mounting sleeve 21 protrudes relative to the sleeve body 22 along the length of the sleeve assembly 20. Specifically, the flexible mounting sleeve 21 includes a first extension 211 and a second extension 212, arranged sequentially along the length of the slot 210. The first extension 211 is connected to the sleeve body 22, and the second extension 212 is adapted to be coupled to the headrest assembly 10 along with the elastic member 30. In other words, the second extension 212 protrudes relative to the sleeve body 22 along the length of the sleeve assembly 20, allowing it to be coupled to the headrest assembly 10 along with the elastic member 30.

[0034] In some embodiments, an end stop 2121 is provided at one end of the second extension section 212 away from the first extension section 211. An opening 2120 communicating with the slot 210 is provided on the side of the end stop 2121 proximal to the first extension section 211. The elastic member 30 is adapted to enter and exit the slot 210 through the opening 2120, and the end stop 2121 is adapted to secure the end of the elastic member 30. The sheath assembly 20 and the elastic member 30 are assembled as follows: first, the end stop 2121 is bent away from the opening 2120 to fully expose the opening 2120. Next, the elastic member 30 is inserted into the slot 210 from the opening 2120 toward the first extension section 211. Once the elastic member 30 is fully inserted, the end stop 2121 is folded back so that it engages the end of the elastic member 30. At this point, the entire elastic member 30 is inserted into the slot 210. This simple connection structure facilitates easy assembly and disassembly of the elastic member 30, as well as replacement.

[0035] In an optional embodiment, the length of the portion where the flexible mounting sleeve 21 is connected to the sleeve body 22 is at least 1 / 2 of the total length of the sleeve body 22, that is, the length of the first extension section 211 is not less than 1 / 2 of the length of the sleeve body 22, so that the elastic member 30 can provide stable and reliable support to the sleeve body 22.

[0036] In some embodiments, the elastic member 30 is a rod-shaped structure, such as a long rod with a circular cross section. The elastic member 30 has a simple structure, low processing and use costs, and is easy to complete the connection with the flexible installation sleeve 21.

[0037] In some embodiments, one end of the cover assembly 20 is provided with a connector adapted to connect to the headrest assembly 10, and the other end is adapted to be driven to spring open by the elastic member 30. The provision of the connector can limit the cover assembly 20, preventing the cover assembly 20 from being bounced off by the elastic member 30.

[0038] In some embodiments, the connecting member is one or more of Velcro, buttons, laces, hooks 101, and buckles, so as to be detachably connected to the headrest assembly 10. Correspondingly, the headrest assembly 10 is provided with a corresponding connecting structure.

[0039] In an optional embodiment, the connecting member is a hook 23, and the headrest assembly 10 is provided with an adapted hook 101. The connection method is simple and easy to assemble and disassemble.

[0040] In an optional embodiment, the connector is disposed in the middle of the sheath body 22 , and the flexible mounting sleeve 21 is disposed on the left or right side of the sheath body 22 so as to be staggered with the connector.

[0041] In some embodiments, the headrest assembly 10 is provided with a guide slot 102 into which the elastic member 30 is adapted to be inserted. The extension direction of the guide slot 102 determines the direction in which the elastic member 30 will be deployed. This connection structure is simple, has low manufacturing costs, and is easy to assemble and disassemble. The assembly process for this shoulder strap automatic deployment mechanism involves first assembling the cover assembly 20, inserting the elastic member 30 into the slot 210, then inserting the second extension 212 of the elastic member 30 into the guide slot 102, and then connecting the hook 23 at the end of the cover body 22 to the hook 101 on the headrest assembly 10. As will be appreciated, since the hook 23 and hook 101, as well as the elastic member 30 and guide slot 102, are detachably connected, the cover assembly 20 can be removed when no longer in use. For example, this shoulder strap automatic deployment mechanism can be used in child safety seats during infancy. Once the child outgrows the cover assembly 20, the cover assembly 20 can be removed.

[0042] In some embodiments, the guide groove 102 extends upward at an angle to guide the elastic member 30 to spring open to the side and upward, so that the shoulder strap can be opened at a larger angle to facilitate passengers to get in and out.

[0043] In some embodiments, the headrest assembly 10 includes a shell 11 and a cover 12 mounted on the outside of the shell 11. The elastic member 30 is connected to the shell 11 or the cover 12. Specifically, the guide groove 102 can be formed on the shell 11 or provided on the cover 12. It is easy to understand that when the guide groove 102 is provided on the shell 11, the cover 12 must be provided with an escape structure, such as an opening or notch, to allow the elastic member 30 to pass through. Similarly, the connection structure corresponding to the connection member on the cover body 22 can be provided on either the shell 11 or the cover 12.

[0044] The present application also provides a child safety seat that utilizes any of the aforementioned automatic shoulder strap release mechanisms, thereby facilitating child entry and exit. It should be noted that child safety seats typically have multiple seatbelts, such as a five-point harness. Utilizing this automatic shoulder strap release mechanism not only allows the shoulder straps to be released to facilitate entry and exit, but also prevents the shoulder straps from becoming entangled with other belt sections of the harness. Of course, the present application is also applicable to seats other than child safety seats.

[0045] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A shoulder strap automatic pop-up mechanism, characterized by: The utility model comprises a headrest assembly, a cover assembly and an elastic member, wherein the headrest assembly is suitable for being connected to the backrest of the seat, the cover assembly comprises a cover body and a flexible mounting cover, the cover body is suitable for being connected to the shoulder strap, the flexible mounting cover extends along the length direction of the cover assembly and is connected to the cover body, and a slot suitable for installing the elastic member is formed inside the flexible mounting cover, the elastic member is connected to the headrest assembly, and the elastic member is suitable for driving the cover assembly and the shoulder strap to pop open so that passengers can get in and out of the seat.

2. The shoulder strap automatic opening mechanism according to claim 1, characterized in that: The flexible mounting sleeve includes a first extension section and a second extension section arranged in sequence along the length direction of the slot, the first extension section is connected to the sleeve main body, the second extension section is suitable for being connected to the headrest assembly along with the elastic member, an end limit portion is provided at one end of the second extension section away from the first extension section, an opening communicating with the slot is provided on a side of the end limit portion close to the first extension section, the elastic member is suitable for entering and exiting the slot through the opening, and the end limit portion is suitable for fixing the end of the elastic member.

3. The automatic shoulder strap opening mechanism according to claim 1 or 2, characterized in that: The elastic member is a rod-shaped structure.

4. The automatic shoulder strap opening mechanism according to claim 1, wherein: One end of the sheath assembly is provided with a connecting piece suitable for connecting with the headrest assembly, and the other end is suitable for being driven by the elastic piece to bounce open.

5. The automatic shoulder strap opening mechanism according to claim 4, characterized in that: The connecting piece is one or more of Velcro, buttons, laces, hooks, and buckles, so as to be detachably connected to the headrest assembly.

6. The automatic shoulder strap opening mechanism according to claim 1, wherein: The headrest assembly is provided with a guide groove, the elastic member is suitable for being inserted into the guide groove, and the extending direction of the guide groove defines the springing direction of the elastic member.

7. The automatic shoulder strap opening mechanism according to claim 6, wherein: The guide groove extends obliquely upward to guide the elastic member to spring upward and sideways.

8. The automatic shoulder strap opening mechanism according to claim 6 or 7, characterized in that: The headrest assembly includes a shell and a cover installed on the outside of the shell, and the elastic member is connected to the shell or the cover.

9. The automatic shoulder strap opening mechanism according to claim 1, wherein: Two cover assemblies are provided, and the two cover assemblies are respectively connected to the headrest assembly through different elastic members. The two cover assemblies are suitable for springing away from each other under the action of the corresponding elastic members.

10. Child safety seat, characterized by: Apply the shoulder strap automatic pop-up mechanism as described in any one of claims 1 to 9.

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