Child car seat with rotation lock
Patent Information
- Application Number
- CN202680000165.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-15
- Filing Date
- 2026-01-15
- Publication Date
- 2026-09-29
Smart Images
Figure CN122847409A_ABST
Abstract
Description
Background Technology
[0001] In the United States, child car seats are legally required and recommended for children of certain ages or sizes. Many types of car seats are available for purchase. Infant car seats recommended for children under 1 year old are typically rear-facing relative to the vehicle in which they are installed. Many infant car seats include a base that is strapped, latched, or secured in the car, and a seat that latches into the base. A popular car seat option for infants and children is the “convertible” car seat, which can be oriented in a rear-facing position and then “converted” to a forward-facing position to accommodate older children. Attached Figure Description
[0002] The foregoing and other features of this disclosure will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. It should be understood that these drawings depict several examples according to this disclosure and are therefore not intended to limit its scope, which is described below with additional specificity and detail using the drawings.
[0003] Figure 1 These are views of the car seat system based on various aspects of this article;
[0004] Figure 2 Based on various aspects of this article Figure 1 An exploded side view of a car seat;
[0005] Figure 3 Based on various aspects of this article Figure 2 A view of the base;
[0006] Figure 4 Based on various aspects of this article Figure 2 Front view of the base;
[0007] Figure 5 Based on various aspects of this article Figure 2 Rear view of the base;
[0008] Figure 6 Based on various aspects of this article Figure 2 Side view of the base;
[0009] Figure 7 Based on various aspects of this article Figure 2 Side view of the base;
[0010] Figure 8 Based on various aspects of this article Figure 2 A top-down view of the base;
[0011] Figure 9 Based on various aspects of this article Figure 2 A view of the base;
[0012] Figure 10A Based on various aspects of this article Figure 2 A close-up view of the main positioning cavity at the base;
[0013] Figure 10B Based on various aspects of this article Figure 10A A cross-sectional view of the main positioning cavity;
[0014] Figure 11A Based on various aspects of this article Figure 2 A close-up view of the secondary positioning cavity at the base;
[0015] Figure 11B Based on various aspects of this article Figure 11A A cross-sectional view of the secondary positioning cavity;
[0016] Figure 12A Based on various aspects of this article Figure 2 Side view of the seat housing;
[0017] Figure 12B Based on various aspects of this article Figure 12A A close-up view of the rotating locking arm of the seat housing;
[0018] Figure 13 Based on the various aspects of this article and Figure 2 A close-up view of the rotating locking arm engaging with the main positioning cavity at the base;
[0019] Figure 14A Based on the various aspects of this article and Figure 2 A close-up view of the rotary locking arm engaging with the secondary positioning cavity at the base;
[0020] Figure 14B Based on the various aspects of this article and Figure 2 A close-up view of the secondary positioning cavity at the base of the rotating locking arm disengaging from the engagement;
[0021] Figure 15A Based on the various aspects of this article and Figure 2 A cross-sectional view of the rotating locking arm engaging with the main positioning cavity at the base;
[0022] Figure 15B Based on the various aspects of this article and Figure 2 A cross-sectional view of the main positioning cavity at the base of the rotating locking arm disengaging from the engagement;
[0023] Figure 16A Based on the various aspects of this article and Figure 2 A cross-sectional view of the rotating locking arm engaging with the secondary positioning cavity at the base; and
[0024] Figure 16B Based on the various aspects of this article and Figure 2 A cross-sectional view of the secondary positioning cavity at the base of the rotating locking arm disengaging from the engagement. Detailed Implementation
[0025] In the following detailed description, reference is made to the accompanying drawings, which form part of the invention. In the drawings, like symbols denote like parts unless the context otherwise requires. The illustrative examples described in the detailed description and drawings are not intended to be limiting, but are for purposes of explanation. Other examples may be utilized, and other changes may be made without departing from the spirit or scope of the subject matter presented herein. It will be readily understood that these aspects of the present disclosure, as generally described herein and shown in these drawings, can be arranged, substituted, combined, and designed in a variety of different configurations, each of which is expressly contemplated and forms part of this disclosure.
[0026] As will be discussed in more detail below, child car seats provide a safe seating option for children in vehicles. Child car seats can rotate relative to a base fixed to the vehicle. This rotation of the seat portion relative to the base allows the seat to face forward, backward, and in between.
[0027] Due to the rotatable nature of some child car seats, child passengers can be loaded from the loading position into a forward-facing or rear-facing orientation (i.e., when the front of the child car seat faces outward toward the vehicle door). In this way, the adult or other individual loading the child into the car seat can easily load the passenger from the loading position facing the individual loading the child, rather than attempting to load the child at a side angle when the car seat is forward-facing or rear-facing.
[0028] However, the ease of loading a child passenger from the loading position comes with additional forces and actions required to move the child car seat to and from the loading position to forward-facing and / or rear-facing orientation, and also introduces structures for moving the rotatable seat housing away from the locked position (e.g., forward-facing or rear-facing orientation). It is desirable to be able to easily navigate to and from the loading position while maintaining sufficient stability in the locked position (i.e., forward-facing or rear-facing orientation).
[0029] As will be provided in more detail below, the following disclosure provides a positioning cavity within a receiving portion of the base of a child car seat. The positioning cavity includes a primary positioning cavity and a secondary positioning cavity. The primary positioning cavity is a “locking” cavity located at a first position (e.g., front end) and an opposing second position (e.g., rear end) of the base, and serves as a structure for locking the seat housing to a forward-facing or rearward-facing orientation. The primary positioning cavity includes a first sidewall and a second sidewall forming a first angle with respect to the receiving portion of the base, such that a rotating locking arm within the primary positioning cavity locks (e.g., prevents rotational movement) the seat housing in place and displaces only upon handle actuation to remove the rotating locking arm from the primary positioning cavity.
[0030] The secondary positioning cavity is a "non-locking" cavity positioned in a third position (e.g., the first side) and a fourth position (e.g., the second side) of the base of the child car seat. The secondary positioning cavity includes a first sidewall and a second sidewall forming a second angle relative to the receiving portion of the base. The second angle of the secondary positioning cavity is smaller than the first angle of the primary positioning cavity. The second angle is positioned such that a rotary locking arm within the secondary positioning cavity is intentionally displaced from the secondary positioning cavity only under the action of an external rotational force from the user. In other words, when the rotary locking arm engages with the secondary positioning cavity, it is not necessary to use an actuation handle to move the rotary locking arm to cause rotation of the child car seat. A force exerted by the user moving the child car seat in a rotational direction toward the front or rear end of the base is sufficient to displace the rotary locking arm from the secondary positioning cavity and rotate the seat housing.
[0031] One aspect considered here includes a rotary locking arm having a distal portion and a proximal portion, the distal portion having an angled surface wall and the proximal portion having a smaller angled surface wall. The rotary locking arm extends to a sufficient depth into the main locking cavity such that at least the proximal portion of the rotary locking arm mechanically interferes with the sidewall of the main positioning cavity. In this configuration, the angle between the proximal surface wall and the sidewall of the main positioning cavity prevents forced rotation of the seat housing relative to the base. When the seat housing rotates relative to the base, the same locking arm also interacts with the secondary positioning cavity. However, in this rotated position, only the distal portion of the rotary locking arm interacts with the sidewall of the secondary positioning cavity. Because the surface wall of the distal portion is angled and the sidewall of the secondary positioning cavity is angled, the seat housing can rotate relative to the base under a sufficiently large force by raising the distal portion of the rotary locking arm outside the secondary positioning cavity. This raising is achieved by the interaction of the inclined surface of the distal portion with the inclined surface of the sidewall, converting the rotational force into a vertical force. Thus, when engaged with the primary positioning cavity, the common rotary locking arm provides rotary locking, while when engaged with the secondary positioning cavity, the common rotary locking arm provides resistive but overcomeable rotary retention.
[0032] Based on all aspects of this disclosure, in Figure 1-16B Exemplary embodiments of car seats are shown at different specific levels. As those skilled in the art will appreciate, the car seats described herein can be convertible car seats that can be switched between forward-facing and rear-facing configurations. The car seat of the present invention can be configured to support infants, children, toddlers, or the like. Very generally, car seat 100 is designed for transporting infants or children in a car. Figure 1 As shown, the car seat 100 typically includes a seat housing 200 supported on a base 300. As will be readily understood by those skilled in the art, the car seat 100 (i.e., the base 300) can be secured to the car seat, for example, by a seatbelt (e.g., a lap belt), tether, or other latching mechanism.
[0033] As described in more detail herein, the seat housing 200 may be removably or non-removably attached to the base 300. Additionally, the seat housing 200 may rotate relative to the base 300. The seat housing 200 may be rotated to selectively position in a variety of different locations (e.g., rear-facing position, forward-facing position, intermediate loading / unloading position). Specifically, the seat housing 200 may be rotated about a generally vertical axis 105 (in... Figure 3 (as shown in the diagram) Rotation. In some examples, axis 105 is generally vertical while being slightly diagonal, such that the angle of seat housing 200 relative to the vehicle seat can change as seat housing 200 rotates about axis 105 between a forward-facing position and a rearward-facing position.
[0034] Figure 2 An exploded side view of an automotive seat 100 system including a seat housing 200 and a base 300 is shown. The seat housing 200 includes a bottom surface 202 having a rotary locking arm 204 and an engagement feature 206. The base 300 includes a backrest portion 318, a receiving portion 302 for engaging with the bottom surface 202 of the seat housing 200, and a receiving cavity surface 304. The base also includes a receiving feature 328 (in... Figure 3 As can be seen in the image, its engagement feature 206 for receiving the seat housing 200 enables a non-removable configuration, such that the seat housing 200 cannot be removed from the base 300. In other aspects, the seat housing 200 is removable from the base 300. In an exemplary embodiment, the receiving portion 302 of the base 300 is curved or recessed to at least partially define a bowl-shaped shape. In this way, the receiving portion 302 of the base 300 generally defines a cavity whose size and shape are designed to receive at least a portion of the seat housing 200.
[0035] Figure 3A view of a base 300 having a backing portion 318 extending upward away from the receiving portion 302 is shown, wherein the backing portion 318 includes a front surface 322 and a rear surface 320 (in Figure 5 (See image). The base 300 also includes a front end 310 and a rear end 312. The front end 310 of the base 300 faces the front of the vehicle during installation, while the rear end 312 faces the rear of the vehicle during installation. The base 300 also includes a first side 314 and a second side 316.
[0036] Continue to refer to Figure 3 The receiving cavity surface 304 includes a primary positioning cavity 306 and a secondary positioning cavity 308. The primary positioning cavity 306, shown as a first primary positioning cavity 306a and a second primary positioning cavity 306b, is a “locking” cavity. The first primary positioning cavity 306a is located at the front end 310 of the base 300, while the second primary positioning cavity 306b is located at the rear end 312 of the base 300. The primary positioning cavity 306 locks the rotary locking arm 204 within the primary positioning cavity 306 until a handle (or other mechanism) is actuated to move the rotary locking arm 204, allowing the rotary locking arm 204 to disengage from the primary positioning cavity 306. Although the primary positioning cavities are shown at the front and rear ends, it is conceivable that they can be positioned at any radial location on the base. In one example, the two primary cavities are positioned directly opposite each other, regardless of their radial positioning. In one example, this directly opposite positioning allows a common rotary locking arm located within the seat housing to engage each primary locking cavity in a forward and backward orientation.
[0037] The secondary positioning cavity 308, shown as first positioning cavity 308a and second positioning cavity 308b, is a "non-locking" cavity. The secondary positioning cavity 308 holds the rotary locking arm 204 in place without external force. Therefore, the rotary locking arm 204 is held securely in place to load or unload a child passenger into or from the vehicle seat 100 system, but free enough that an external rotational force (from the user) will cause the rotary locking arm 204 to disengage from the secondary positioning cavity 308. Although the secondary positioning cavities are shown in the side view, it is conceivable that they can be positioned at any radial location at the base. In one example, the two secondary cavities are positioned directly opposite each other, regardless of where they are radially positioned. In one example, this direct-opposite positioning allows a common rotary locking arm positioned within the seat housing to engage each secondary locking cavity in a side-facing orientation.
[0038] Figure 4-7 A front view, a rear view, a first side view, and a second side view of the base 300 with reference center line 125 are shown respectively.
[0039] Figure 8A top-down view of the base 300 is shown. As shown, the first main positioning cavity 306a is located at a first radial distance 110 extending from the rotation axis 105, while the first positioning cavity 308a is located at a second radial distance 115 extending from the rotation axis 105. The first radial distance 110 and the second radial distance 115 are offset by 90 degrees, as shown by angle 120. The first radial distance 110 extends through the reference centerline 125 at the front end 310.
[0040] Additionally, the first main positioning cavity 306a and the second main positioning cavity 306b are offset from each other by 180 degrees relative to the rotation axis 105, as shown at angle 130°. Furthermore, the first positioning cavity 308a and the second positioning cavity 308b are also offset from each other by 180 degrees relative to the rotation axis 105, as shown at angle 135°. Those skilled in the art will understand that the positions of the main and secondary positioning cavities can be located at different points along the rotation axis 105. However, the rotating locking arm 204 of the seat housing 200 will also be adjusted so that this configuration still provides reliable locking within the main positioning cavity 306 when the vehicle seat 100 is in a forward-facing or rearward-facing orientation. Therefore, the main positioning cavity 306 and the rotating locking arm 204 will still be aligned in the forward-facing or rearward-facing orientation, while the secondary positioning cavity 308a and the rotating locking arm 204 will be aligned in an intermediate position (e.g., the loading / unloading position).
[0041] Figure 9-1 Additional close-up views of the base 300 are provided, showing additional aspects of the primary positioning cavity 306 and the secondary positioning cavity 308. (See attached image.) Figure 9 As shown, the first main positioning cavity 306a and the second main positioning cavity 306b have a first sidewall 324 and an opposing second sidewall 334. Similarly, the first positioning cavity 308a and the second positioning cavity 308b have a first sidewall 326 and an opposing second sidewall 336.
[0042] Figure 10A A close-up view of the main positioning cavity 306 is provided. As mentioned, the first sidewall 324 and the second sidewall 334 are opposite each other and have the same structure. The first sidewall 324 is in a first rotational direction, and the second sidewall 334 is in a second rotational direction. The main positioning cavity 306 has a main base surface 342 extending from the first sidewall 324 to the second sidewall 334. The main positioning cavity 306 also has a first depth 338 extending from the main base surface 342 to the receiving cavity surface 304. In all respects, the first depth 338 is at least 25 mm. Additionally, as... Figure 10BAs shown in the cross-sectional view, the main positioning cavity 306 is positioned such that the first sidewall 324 has a first angle 330 relative to the receiving cavity surface 304. In some respects, the first angle 330 is greater than 265 degrees. An angle greater than 265 degrees provides sufficient resistance to the vertical displacement of the locking arm from the positioning cavity. In several respects, the second sidewall 334 has the same angle relative to the receiving cavity surface 304 (i.e., the second sidewall 334 also has the first angle 330 relative to the receiving cavity surface 304).
[0043] Figure 11A A close-up view of the secondary positioning cavity 308 is provided. The secondary positioning cavity 308 has a first sidewall 326 and an opposing second sidewall 336. The first sidewall 326 is along a first rotational direction, while the second sidewall 336 is along a second rotational direction. The secondary positioning cavity 308 has a second base surface 344 extending from the first sidewall 326 to the second sidewall 336. The secondary positioning cavity 308 has a second depth 340 extending from the second base surface 344 to the receiving cavity surface 304. The second depth 340 of the secondary positioning cavity 308 is less than the first depth 338 of the primary positioning cavity 306. In various respects, as will be discussed below, due to the smaller depth of the second depth 340, certain portions of the rotary locking arm 204 are not contained within the secondary positioning cavity 308. Furthermore, as... Figure 11B As shown in the cross-sectional view, the secondary positioning cavity 308 is positioned such that the first sidewall 326 and the second sidewall 336 form a second angle 332 relative to the receiving cavity surface 304. In all respects, the second angle 332 is less than 260 degrees. An angle less than 260 degrees provides sufficient conversion of rotational force to vertical displacement of the locking arm from the positioning cavity to allow for intentional vertical displacement of the locking arm. In all respects, the second angle 332 is less than the first angle 330.
[0044] Figure 12A A side view of the seat housing 200 with a rotating locking arm 204 is provided, and Figure 12B A close-up view of the rotary locking arm 204 is provided. The rotary locking arm has a first portion 214, a second portion 216, a first side 208, a second side 210, and a distal end 212. The first side 208 and the second side 210 are substantially parallel to each other in the second portion 216. The first side 208 and the second side 210 converge in the first portion 214. The distal end 212 extends between the first side 208 and the second side 210. The first portion 214 extends from the distal end 212 to the second portion 216.
[0045] exist Figure 13The upward movement provides engagement of the rotary locking arm 204 with the main positioning cavity 306. As shown, the main positioning cavity 306 includes a first sidewall 324 and an opposing second sidewall 334, and a main base surface 342 extending between the first sidewall 324 and the second sidewall 334. A first depth 338 of the main positioning cavity 306 such that a first portion 214 and a second portion 216 of the rotary locking arm 204 are received within the sidewall (e.g., the first sidewall 324) of the main positioning cavity 306. Thus, the first depth 338 is greater than the length of the first portion 214. In various aspects, the depth of the first depth 338 is at least twice the depth of the second depth 340. In one aspect, making the first depth 338 at least twice the depth of the second depth 340 provides sufficient manufacturing tolerances and confidence that the locking arm 204 engages within the main positioning cavity 306 to lock rotational movement. Because both the first portion 214 (distal portion) and the second portion 216 (proximal portion) of the rotary locking arm 204 are contained within the sidewall of the main positioning cavity 306, the rotary locking arm 204 is "locked" within the main positioning cavity 306, requiring an actuation handle (or any other mechanism that actuates the movement of the rotary locking arm 204) to release the rotary locking arm 204 from the main positioning cavity 306. In other words, the rotary locking arm 204 extends to a sufficient depth within the main positioning cavity 306 such that at least the second portion 216 of the rotary locking arm 204 mechanically interferes with the sidewall of the main positioning cavity 306.
[0046] exist Figure 15A and 15B This kind of connection is also provided in the middle. Figure 15A and 15B This is a cross-sectional view of the rotary locking arm 204 within and released from the main positioning cavity 306 of the base 300. As shown, the first portion 214 and the second portion 216 of the rotary locking arm 204 are both contained within the sidewall (i.e., the rotary locking arm 204 extends into the main positioning cavity 306 to a certain depth, such that both the first portion 214 and the second portion 216 extend into the main positioning cavity 306). A gap 132 between the distal end 212 of the rotary locking arm 204 and the main base surface 342 is also shown, such that the distal end 212 does not engage with the main base surface 342.
[0047] on the contrary, Figure 14A and 14B The engagement of the rotary locking arm 204 with the secondary positioning cavity 308 is shown. The secondary positioning cavity 308 has a smaller depth than the primary positioning cavity 306, and the angle between the sidewall of the secondary positioning cavity 308 and the receiving cavity surface 304 is smaller. Figure 14A The rotating locking arm 204 within the secondary positioning cavity 308 is shown, while Figure 14B A rotary locking arm 204 is shown moving from the secondary positioning cavity 308 in the rotational direction indicated by directional arrow 140. Figure 14AIt is also shown that a first portion 214 of the rotary locking arm 204 engages with a sidewall (e.g., first sidewall 326) of the secondary positioning cavity 308. In several respects, a second portion 216 of the rotary locking arm 204 does not engage with a sidewall (e.g., first sidewall 326 or second sidewall 336) of the secondary positioning cavity 308. In several respects, a second depth 340 is equal to or less than the length of the first portion 214, wherein the length of the first portion 214 extends from the distal end 212 to the second portion 216. In other respects, a second depth 340 is greater than the length of the first portion 214, but less than the lengths of both the first portion 214 and the second portion 216.
[0048] Also through Figure 16A and 16B An exemplary cross-sectional view is provided. Figure 16A A rotary locking arm 204 is provided having a first portion 214 that engages with a sidewall (e.g., a first sidewall 326 or a second sidewall 336). A portion 212a of the distal end 212 does not engage or fit within the secondary positioning cavity 308. This allows the rotary locking arm 204 to be easily rotated out of the secondary positioning cavity 308 without requiring an actuation handle or other release mechanism to move the rotary locking arm 204. Conversely, due to the shallow depth and large angle of the sidewall relative to the receiving cavity surface 304, an external rotational force from the user is sufficient to move the rotary locking arm 204 out of the secondary positioning cavity 308.
[0049] In some configurations, the base 300 may include one or more indicators configured to indicate whether rotation of the seat housing 200 is locked relative to the base 300. In several aspects, a first indicator may be positioned on a first side 314 of the base 300. Similarly, a second indicator may be positioned on an opposing second side 316 of the base 300. Each of the first and second indicators may be configured to indicate whether rotation of the seat housing 200 is locked relative to the base 300 (e.g., specifically indicating whether rotation of the seat housing 200 is locked in a forward-facing or rearward-facing position). Specifically, the first and second indicators may be configured to visually indicate whether rotation of the seat housing 200 is locked relative to the base 300. As a non-limiting example, the first and second indicators may be configured to provide a visual indication in a first color (e.g., red) when the seat housing 200 is not rotated relative to the base 300 and / or when the seat housing 200 is not in a forward-facing or rearward-facing position, and the first and second indicators may be configured to provide a visual indication in a different second color (e.g., green) when the seat housing 200 is rotated relative to the base 300 and / or when the seat housing 200 is in a forward-facing or rearward-facing position. In other words, when the rotation locking arm 204 is confined within one of the first main positioning cavity 306a or the second main positioning cavity 306, the indicator may indicate that the seat housing 200 is locked relative to the base 300. Conversely, when the rotation locking arm 204 is confined within one of the first positioning cavity 308a or the second positioning cavity 308b, the indicator may indicate that the seat housing 200 is not locked relative to the base 300 (e.g., the rotation of the seat housing 200 is not locked).
[0050] It should be noted that some of the terms used here can be relative. For example, the terms “up” and “down,” as well as “forward” (or “front”) and “backward” (or “rear”), are positioned relative to each other; that is, in a given orientation, the upper component is at a higher height than the lower component. However, these terms can change if the device is flipped. On the other hand, the intermediate component is always located between the upper and lower components, regardless of its orientation. The terms “horizontal” and “vertical” are used to indicate directions relative to an absolute reference (i.e., the ground plane). However, these terms should not be interpreted as requiring the structures to be absolutely parallel or absolutely perpendicular to each other. For example, the first vertical structure and the second vertical structure do not necessarily have to be parallel to each other. The terms “top” and “bottom” are used to refer to surfaces that are always higher than the bottom relative to an absolute reference, i.e., the ground surface when the components are intended to be used. The terms “upward” or “upwardly” and “downward” or “downwardly” are also relative to an absolute reference; upward always goes against the Earth's gravity. The terms “forward” and “backward” or “rear” refer to positions or orientations that are opposite each other along a common direction, and the “middle” position is always located between the forward and backward positions.
[0051] The terms “operably” and “configured as”, and similar terms herein, are used to describe specific components having certain structural features designed to perform a specified function. Such components should be interpreted as having the expressed structure, in which the specified function is considered part of that structure. The term “engagement” and similar terms herein are used to describe the interaction between specific components and do not necessarily require such components to be in contact with each other (directly or indirectly). As used herein and as those skilled in the art will understand, the term “car seat” encompasses car seats, safety seats, restraints, boosters, etc., for children, infants, toddlers, etc.
[0052] The following clauses represent exemplary embodiments of the concepts covered herein. Any of the following clauses may be combined in multiple dependent manners to be subordinate to one or more other clauses. Furthermore, any combination of dependent clauses (clauses that explicitly rely on preceding clauses) may be combined while remaining within the scope of the aspects covered herein. The following clauses are illustrative and not restrictive.
[0053] Clause 1: A car seat comprising: a seat housing having a bottom surface and a rotary locking arm extending from the bottom surface; and a base having a receiving portion, wherein the receiving portion includes a receiving cavity surface configured to abut against the bottom surface of the seat housing, wherein the receiving portion further includes a first main positioning cavity and a first positioning cavity extending through the receiving cavity surface into the receiving portion, wherein the first main positioning cavity has a first sidewall having a first angle relative to the receiving cavity surface, and the first positioning cavity has a first sidewall having a second angle relative to the receiving cavity surface, and wherein the second angle is smaller than the first angle.
[0054] Clause 2: The car seat according to Clause 1, wherein the rotating locking arm has a first side, a second side and a distal end extending between the first side and the second side, and wherein the rotating locking arm has a first portion and a second portion, wherein the first portion extends from the distal end to the second portion.
[0055] Clause 3: A car seat according to any one of Clauses 1-2, wherein the first portion of the locking arm is configured to engage with the first sidewall of the first positioning cavity, and wherein the second portion of the locking arm is configured to engage with the first sidewall of the first main positioning cavity.
[0056] Clause 4: A car seat according to any one of Clauses 1-2, wherein the first side and the second side of the rotating locking arm converge in the first portion, and wherein the first side and the second side of the rotating locking arm are parallel in the second portion.
[0057] Clause 5: The car seat according to any one of Clauses 1-4, wherein the base has a rotation axis extending through the receiving portion, and the seat housing rotates about the rotation axis.
[0058] Clause 6: The car seat according to Clause 5, wherein the first primary positioning cavity is located at a first radial position extending from the rotation axis, and the first positioning cavity is located at a second radial position extending from the rotation axis.
[0059] Clause 7: The car seat as described in Clause 6, wherein the first radial and the second radial are offset by 90 degrees.
[0060] Clause 8: The car seat as described in Clause 6, wherein the first radial extension passes through the center line of the front side.
[0061] Clause 9: The automobile seat according to any one of Clauses 1-8, wherein the receiving portion further comprises a second main positioning cavity and a second positioning cavity.
[0062] Clause 10: The automobile seat according to Clause 9, wherein the first primary positioning cavity and the second primary positioning cavity are offset from each other by 180 degrees relative to the axis of rotation, and wherein the first positioning cavity and the second positioning cavity are offset from each other by 180 degrees relative to the axis of rotation.
[0063] Clause 11: The car seat according to Clause 10, wherein the first positioning cavity has a first sidewall and an opposing second sidewall, and wherein the first sidewall is in a first rotational direction and the second sidewall is in a second rotational direction.
[0064] Clause 12: A car seat according to any one of Clauses 1-11, wherein the first main positioning cavity has a first sidewall and an opposing second sidewall, wherein the first sidewall is in a first rotational direction and the second sidewall is in a second rotational direction.
[0065] Clause 13: A car seat according to any one of Clauses 1-12, wherein the first angle of the first sidewall of the first main positioning cavity relative to the surface of the receiving cavity is greater than 265 degrees.
[0066] Clause 14: A car seat pursuant to any one of Clauses 1-13, wherein the second angle is less than 260 degrees.
[0067] Clause 15: A car seat according to any one of Clauses 1-14, wherein the first primary positioning cavity and the first positioning cavity extend through a first radial direction extending from the axis of rotation.
[0068] Clause 16: A car seat comprising: a seat housing having a bottom surface and a rotary locking arm extending from the bottom surface; and a base having a receiving portion, wherein the receiving portion includes a receiving cavity surface configured to abut against the bottom surface of the seat housing, and further includes a first main positioning cavity and a first positioning cavity extending through the receiving cavity surface into the receiving portion, wherein the first main positioning cavity extends from the receiving cavity surface into the receiving portion to a first depth, and the first positioning cavity extends from the receiving cavity surface into the receiving portion to a second depth, and wherein the first depth is greater than the second depth.
[0069] Clause 17: The automobile seat according to Clause 16, wherein the first primary positioning cavity has a base surface extending between a first sidewall and a second sidewall, wherein the first depth is measured from the base surface of the first primary positioning cavity to the surface of the receiving cavity, and wherein the first positioning cavity has a base surface extending between the first sidewall and the second sidewall, and wherein the second depth is measured from the base surface of the first positioning cavity to the surface of the receiving cavity.
[0070] Clause 18: A car seat according to any one of Clauses 16-17, wherein the base has a rotation axis extending through the receiving portion, and the seat housing rotates about the rotation axis.
[0071] Clause 19: A car seat comprising: a seat housing having a bottom surface and a rotary locking arm extending from said bottom surface; and a base having a receiving portion, wherein said receiving portion includes a receiving cavity surface configured to abut against the bottom surface of said seat housing, and further includes a first main positioning cavity and a first positioning cavity extending through said receiving cavity surface into said receiving portion, wherein said first main positioning cavity has a first sidewall having a first angle relative to said receiving cavity surface, and said first positioning cavity has a first sidewall having a second angle relative to said receiving cavity surface, and wherein said second angle is less than said first angle, and wherein said first main positioning cavity extends from said receiving cavity surface into said receiving portion a first depth, and said first positioning cavity extends from said receiving cavity surface into said receiving portion a second depth, and wherein said first depth is greater than said second depth.
[0072] Clause 20: The car seat according to Clause 19, wherein the base has a rotation axis extending through the receiving portion, and the seat housing rotates about the rotation axis.
[0073] While specific exemplary embodiments have been described, it is not intended to limit the claims thereto, as the scope of the claims is intended to be as broad as is permitted in the art, and similarly, to be read in the specification. That is, the foregoing description of specific embodiments will fully reveal the general nature of this disclosure, enabling others to readily modify and / or adapt these specific embodiments to various applications by applying the knowledge of those skilled in the art, without departing from the general conception of this disclosure and without excessive experimentation. Therefore, based on the teachings and guidance provided herein, such adaptations and modifications are intended to fall within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive rather than limiting purposes, and that the terminology or terminology of this specification will be interpreted by those skilled in the art based on the teachings and guidance.
[0074] Those skilled in the art will understand that the components, method steps, and materials shown above can be modified by replacing equivalent components, steps, and materials that perform the same function. Those skilled in the art will also understand that the size and strength of the components can be scaled up or down to suit the needs of a particular purpose. The claims herein are intended to cover all such equivalent components, method steps, and scales.
Claims
1. A car seat, comprising: A seat housing having a bottom surface and a rotary locking arm extending from said bottom surface; The base has a receiving portion, wherein the receiving portion includes a receiving cavity surface configured to abut against the bottom surface of the seat housing, wherein the receiving portion further includes a first main positioning cavity and a first positioning cavity extending through the receiving cavity surface into the receiving portion, wherein the first main positioning cavity has a first sidewall having a first angle relative to the receiving cavity surface, and the first positioning cavity has a first sidewall having a second angle relative to the receiving cavity surface, wherein the second angle is smaller than the first angle.
2. The car seat of claim 1, wherein the rotary locking arm has a first side, a second side and a distal end extending between the first side and the second side, and wherein the rotary locking arm has a first portion and a second portion, wherein the first portion extends from the distal end to the second portion.
3. The car seat of claim 2, wherein the first portion of the locking arm is configured to engage with the first sidewall of the first positioning cavity, and wherein the second portion of the locking arm is configured to engage with the first sidewall of the first main positioning cavity.
4. The car seat of claim 2, wherein the first side and the second side of the rotary locking arm converge in the first portion, and wherein the first side and the second side of the rotary locking arm are parallel in the second portion.
5. The car seat according to claim 1, wherein the base has a rotation axis extending through the receiving portion, and the seat housing rotates about the rotation axis.
6. The automotive seat of claim 5, wherein the first primary positioning cavity is located at a first radial position extending from the rotation axis, and the first positioning cavity is located at a second radial position extending from the rotation axis.
7. The car seat according to claim 6, wherein the first radial and the second radial are offset by 90 degrees.
8. The car seat of claim 6, wherein the first radial extension passes through the centerline of the front side.
9. The car seat according to claim 1, wherein the receiving portion further comprises a second main positioning cavity and a second positioning cavity.
10. The automobile seat of claim 9, wherein the first main positioning cavity and the second main positioning cavity are offset from each other by 180 degrees relative to the axis of rotation, and wherein the first positioning cavity and the second positioning cavity are offset from each other by 180 degrees relative to the axis of rotation.
11. The automobile seat of claim 10, wherein the first positioning cavity has a first sidewall and an opposing second sidewall, and wherein the first sidewall is in a first rotational direction and the second sidewall is in a second rotational direction.
12. The car seat of claim 1, wherein the first main positioning cavity has a first sidewall and an opposing second sidewall, wherein the first sidewall is in a first rotational direction and the second sidewall is in a second rotational direction.
13. The car seat according to claim 1, wherein the first angle between the first sidewall of the first main positioning cavity and the surface of the receiving cavity is greater than 265 degrees.
14. The car seat according to claim 1, wherein the second angle is less than 260 degrees.
15. The automobile seat of claim 1, wherein the first main positioning cavity and the first positioning cavity extend through a first radial direction extending from the axis of rotation.
16. A car seat, comprising: A seat housing having a bottom surface and a rotary locking arm extending from said bottom surface; The base has a receiving portion, wherein the receiving portion includes a receiving cavity surface configured to abut against the bottom surface of the seat housing, and further includes a first main positioning cavity and a first positioning cavity extending through the receiving cavity surface into the receiving portion, wherein the first main positioning cavity extends from the receiving cavity surface to a first depth into the receiving portion, and the first positioning cavity extends from the receiving cavity surface to a second depth into the receiving portion, wherein the first depth is greater than the second depth.
17. The automotive seat of claim 16, wherein the first primary positioning cavity has a base surface extending between a first sidewall and a second sidewall, wherein the first depth is measured from the base surface of the first primary positioning cavity to the surface of the receiving cavity, and wherein the first positioning cavity has a base surface extending between the first sidewall and the second sidewall, and wherein the second depth is measured from the base surface of the first positioning cavity to the surface of the receiving cavity.
18. The automobile seat of claim 16, wherein the base has a rotation axis extending through the receiving portion, and the seat housing rotates about the rotation axis.
19. A car seat, comprising: A seat housing having a bottom surface and a rotary locking arm extending from said bottom surface; The device includes a base having a receiving portion, wherein the receiving portion includes a receiving cavity surface configured to abut against the bottom surface of the seat housing, and further includes a first main positioning cavity and a first positioning cavity extending through the receiving cavity surface into the receiving portion, wherein the first main positioning cavity has a first sidewall having a first angle relative to the receiving cavity surface, and the first positioning cavity has a first sidewall having a second angle relative to the receiving cavity surface, wherein the second angle is smaller than the first angle, wherein the first main positioning cavity extends from the receiving cavity surface into the receiving portion to a first depth, and the first positioning cavity extends from the receiving cavity surface into the receiving portion to a second depth, wherein the first depth is greater than the second depth.
20. The car seat of claim 19, wherein the base has a rotation axis extending through the receiving portion, and the seat housing rotates about the rotation axis.