child seat

Abstract

Providing improved child car seats. [Solution] The child seat of the present invention includes a base including a base limit assembly and a seat arranged above the base, the seat including a mounting base arranged above the base, a seat body arranged above the mounting base and capable of moving along a pitch adjustment path relative to the mounting base, and a seat limit assembly arranged on the seat and connected to the seat body, the base limit assembly engaging with the seat limit assembly to limit vertical movement of the seat body.

Description

[Technical Field]

[0001] The present invention relates to a child car seat. [Background technology]

[0002] Child seats are commonly used in vehicles such as automobiles to appropriately restrict the movement of children in the event of a collision. Considering safety and comfort, existing child seats are designed to be rotatable between forward and reverse directions and to adjust the seat pitch angle to accommodate children of different body types. Therefore, the seat must be adjustable by connecting it to a base via a rotation mechanism, a sliding mechanism, or the like. Summary of the Invention [Problem to be solved by the invention]

[0003] In such a case, when the vehicle crashes, the connection mechanism between the seat and the base is subjected to a very large amount of pressure, and therefore, an improvement is required. [Means for solving the problem]

[0004] The child seat of the present invention includes a base including a base limit assembly, and a seat disposed above the base, the seat including a mounting base disposed above the base, a seat body disposed above the mounting base and capable of moving along a pitch adjustment path relative to the mounting base, and a seat limit assembly disposed on the seat and connected to the seat body, the base limit assembly engaging with the seat limit assembly to limit vertical movement of the seat body.

[0005] In one embodiment, the mounting base is a rotating seat that is provided above the base so that the seat can rotate about a substantially vertical axis relative to the base, and the base limiting assembly and the seat limiting assembly are configured so that when the seat body is rotated to a forward-facing position, the base limiting assembly engages with the seat limiting assembly to limit longitudinal movement of the seat body along a substantially fore-and-aft direction.

[0006] In one embodiment, the base restraining assembly is provided at the longitudinal rear edge of the base.

[0007] In one embodiment, the seat is rotatable relative to the base between a forward position and a rearward position, in which the seat back is adjacent to a rear side of the base, and in which the seat back is adjacent to a front side of the base, and the pitch adjustment path includes a generally fore-aft movement of the seat bottom along a longitudinal curve and a generally up-and-down movement of the seat back along a vertical forward tilt curve.

[0008] In one embodiment, the seat limiting assembly includes a seat limiting assembly vertical portion extending upward from the periphery of the mounting base, a first engagement portion provided at the upper end of the seat limiting assembly vertical portion and engaging with the base limiting assembly when the seat body rotates to the limit angle, and a body connection portion connected between the seat body and the seat limiting assembly vertical portion.

[0009] In one embodiment, two seat limiting assembly vertical sections are provided, which are arranged symmetrically with respect to the seat corresponding to the circumferential positions of the seat backrest section and extend upward along the seat backrest section, and two main body connection sections are provided, which are each connected to a corresponding seat limiting assembly vertical section.

[0010] In one embodiment, the first engagement portion includes a first engagement hook arranged laterally between the two seat limiting assembly vertical portions, and the first engagement hook includes an engagement portion extending laterally, having a hook-shaped cross section, and having both lateral ends open.

[0011] In one embodiment, the first engagement hook further includes two bent portions extending longitudinally forward from both lateral ends of the engagement portion, and the free ends of each bent portion are engaged with the upper ends of the corresponding seat limiting assembly vertical portions.

[0012] In one embodiment, the engagement portion has a first vertical wall, a second vertical wall, a bottom wall, and an open upper side, the bent portion extends longitudinally forward from both lateral ends of the first vertical wall, the second vertical wall is located rearward of the first vertical wall, the bottom wall is connected between the bottom side of the first vertical wall and the bottom side of the second vertical wall, the open upper side faces the bottom wall, and the engagement portion is engaged with the base limiting assembly so that the second vertical wall abuts against the base limiting assembly to prevent forward movement of the seat.

[0013] In one embodiment, the body connection portion includes a crossbar and a connecting lever, the crossbar being arranged laterally between the two seat limiting assembly vertical portions, the connecting lever extending generally vertically, and both ends of the connecting lever being pivotally connected to the crossbar and the seat body, respectively.

[0014] In one embodiment, two connecting levers are provided, each connecting lever has an elongated hole extending in the same direction as the connecting lever, a crossbar is drilled in the elongated hole and pivotally connected to the connecting lever, and the crossbar is movable within and relative to the elongated hole.

[0015] In one embodiment, the first engagement portion includes a hook-shaped portion that extends in a hook-like manner from an upper end of the seat limiting assembly vertical portion and engages with the base limiting assembly.

[0016] In one embodiment, the hook-shaped portion includes a longitudinally extending portion extending rearward from the upper end of the seat limiting assembly vertical portion and a vertically extending portion extending upward from the rear end of the longitudinally extending portion, the vertically extending portion engaging with the base limiting assembly to limit forward movement of the seat.

[0017] In one embodiment, the hook portion and the seat limiting assembly vertical portion are integrally formed plates, and the seat limiting assembly further includes anti-collision buffers attached to both lateral sides of the hook portion and having substantially the same outer contour shape as the hook portion.

[0018] In one embodiment, the main body connection portion includes a slide bar and a slide slot member having an elongated slide slot, the slide bar being provided on one of the seat main body and the seat limiting assembly vertical portion, and the slide slot member being provided on the other of the seat main body and the seat limiting assembly vertical portion, the slide bar being drilled in the slide slot member and being able to move within and relative to the slide slot member as the seat main body rotates along the elevation adjustment path relative to the mounting base.

[0019] In one embodiment, the seat limiting assembly is connected to the seat body by a body connection portion, and the first engagement portion and the base limiting assembly are engaged with each other so that the first engagement portion and the base limiting assembly can move relative to each other as the seat body moves along the pitch adjustment path relative to the mounting base.

[0020] In one embodiment, the first engagement portion includes a first engagement hook provided between two seat limiting assembly vertical portions, the first engagement hook extending laterally, having a hook-shaped cross section, and both lateral ends open, the first engagement hook having a first vertical wall, a second vertical wall, a rear wall, and an open front side, the first vertical wall connected to the seat main body, the second vertical wall being located above the first vertical wall, the rear wall connected between the rear side of the first vertical wall and the rear side of the second vertical wall, the open front side facing the rear wall and the seat main body, the first engagement hook being movable within a range of movement relative to the base limiting assembly, and the rear wall abutting against the base limiting assembly to prevent the seat from moving forward.

[0021] In one embodiment, the base includes two vertical strut portions arranged symmetrically with respect to the base and extending upward from a longitudinal rear edge of the base, and a second engagement portion arranged between the two vertical strut portions and engaged with the seat limiting assembly.

[0022] In one embodiment, the second engagement portion includes a second engagement hook disposed between two strut vertical portions, the second engagement hook extending laterally, having a hook-shaped cross section, and open at both lateral ends.

[0023] In one embodiment, the second engagement portion further includes a reinforcement arranged laterally between the two strut vertical portions, and the second engagement hook is a base engagement piece attached to the bottom side of the reinforcement.

[0024] In one embodiment, the second engagement hook includes a third vertical wall and an upper wall, the upper wall connected to the strut vertical portion, the third vertical wall extending downward from a front end of the upper wall, and engagement between the third vertical wall and the seat limiting assembly prevents forward movement of the seat.

[0025] In one embodiment, the second engagement hook has a third vertical wall, a fourth vertical wall, and an end wall, the third vertical wall is connected to the strut vertical portion, the fourth vertical wall is located lower than the third vertical wall, the end wall is connected between a front side of the third vertical wall and a front side of the fourth vertical wall, the second engagement hook can move within a movement range relative to the seat limiting assembly, and the fourth vertical wall abuts against the seat limiting assembly to prevent forward movement of the seat.

[0026] In one embodiment, while the seat body moves along the elevation adjustment path, the seat is always engaged with the base via the seat limit assembly and the base limit assembly, and the relative position between the first engagement portion of the seat limit assembly and the second engagement portion of the base limit assembly remains substantially unchanged.

[0027] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is a perspective view of a child car seat according to a first embodiment of the present application, in which the seat and base are shown in a disengaged state. [Figure 2] FIG. 2 is a perspective view of the child car seat. [Figure 3] FIG. 3 is a rear view of the child car seat. [Figure 4A] FIG. 4A is a side cross-sectional view of the child car seat, with the seat body in a supine position. [Figure 4B] FIG. 4B is an enlarged view of the rectangular portion of FIG. 4A. [Figure 5A] FIG. 5A is a side cross-sectional view of the child car seat, with the seat body in an upright position. [Figure 5B] FIG. 5B is an enlarged view of the rectangular portion of FIG. 5A. [Figure 6] FIG. 6 is a perspective view of a portion of the mounting base and seat restraint assembly. [Figure 7] FIG. 7 is a side cross-sectional view of the base, the mounting base, a portion of the seat limiting assembly, and the base limiting assembly. [Figure 8] FIG. 8 is a perspective view of a child car seat according to a second embodiment of the present application. [Figure 9A] FIG. 9A is a perspective view of the child car seat as seen from another angle. [Figure 9B] FIG. 9B is an enlarged view of the rectangular portion of FIG. 9A. [Figure 10A] FIG. 10A is a side cross-sectional view of the child car seat. [Figure 10B] FIG. 10B is an enlarged view of the rectangular portion of FIG. 10A. [Figure 11] FIG. 11 is a rear view of a child car seat according to the third embodiment of the present application. [Figure 12] FIG. 12 is a perspective view of the child car seat, with the seat and base struts shown in an engaged position. [Figure 13] FIG. 13 is a perspective view of the child car seat, with the seat and base struts shown in a disengaged position. [Figure 14A] FIG. 14A is a side cross-sectional view of a child car seat where the body connection portion is located outside the vertical portion of the seat restraint assembly. [Figure 14B] FIG. 14B is an enlarged view of the rectangular portion of FIG. 14A. [Figure 15A] FIG. 15A is a side cross-sectional view of a child car seat where the body connection portion is located inside the vertical portion of the seat restraint assembly. [Figure 15B] FIG. 15B is an enlarged view of the rectangular portion of FIG. 15A. [Figure 16A] FIG. 16A is a perspective view of a child car seat, with part of the seat body removed to show the body connection portion. [Figure 16B] FIG. 16B is an enlarged view of the rectangular portion of FIG. 16A. [Figure 17] FIG. 17 is a side view of the child car seat with a part of the base removed. [Figure 18] FIG. 18 is a partial enlarged view of a main body connecting portion of a child car seat according to a fourth embodiment of the present application. [Figure 19A] FIG. 19A is a side view of a child car seat according to a fifth embodiment of the present application, in which the seat body is in a substantially upright position and a portion of the seat body is removed to show the first engagement hook and the second engagement hook. [Figure 19B] FIG. 19B is an enlarged view of the rectangular portion of FIG. 19A. [Figure 20A] FIG. 20A is a side view of a child car seat according to a fifth embodiment of the present application, in which the seat body is in a substantially supine position and a portion of the seat body is removed to show the first engagement hook and the second engagement hook. [Figure 20B] FIG. 20B is an enlarged view of the rectangular portion of FIG. 20A. DETAILED DESCRIPTION OF THE INVENTION

[0029] Although the invention is illustrated and described herein with reference to specific embodiments, the invention should not be limited to the details shown; rather, various changes can be made to these details, within the scope and range of equivalents of the claims, without departing from the invention.

[0030] The descriptions of directions such as "front", "rear", "upper", and "lower" contained in this specification are merely for ease of understanding, and the present invention is not limited to these directions and can be adjusted according to actual circumstances. Although the present application has been described with reference to a list of exemplary embodiments, the terms used are descriptive and exemplary, rather than limiting.

[0031] First, a child car seat according to a first embodiment of the present application will be generally described with reference to FIGS. 1 to 4A.

[0032] The child car seat includes a base 2 and a seat 1. The seat 1 is located above the base 2 and is a portion on which a child sits. The seat 1 further includes a seat body 100, a mounting base 200, and a seat limit assembly 300. The base 2 is configured to mount the child car seat to a vehicle, for example, an automobile. The base 2 is provided with a base limit assembly 400 that cooperates with the seat limit assembly 300 on the seat 1 to limit the longitudinal movement of the seat 1.

[0033] For the convenience of those skilled in the art in understanding the present application, in this specification, the portion of the seat restraint assembly 300 that engages with the base restraint assembly 400 is collectively referred to as the first engagement portion, and in this embodiment, specifically, the first engagement hook 310. The portion of the base restraint assembly 400 that engages with the seat restraint assembly is collectively referred to as the second engagement portion, and in this embodiment, specifically, the second engagement hook 410. Furthermore, the components in each embodiment of the present application are interchangeable. For example, the first engagement portion and the second engagement portion of the first embodiment may be applied to the third embodiment, and the first engagement portion and the second engagement portion of the second embodiment may be alternatively applied to the third embodiment.

[0034] As shown in FIG. 2 , the base limit assembly 400 includes a second engagement portion. The strut 500 is generally U-shaped, with two vertical strut portions 510 of the strut 500 arranged symmetrically with respect to the base 2 and extending upward from the longitudinal rear edge of the base 2, and a horizontal strut portion 520 connected between the top ends of the two vertical strut portions 510. A second engagement portion is arranged between the two struts 500, and when the seat body 100 rotates to the limit angle, the second engagement portion engages with the seat limit assembly 300. A vertical slot 121 is opened in the backrest portion 120 of the seat body 100, and the seat limit assembly 300 is arranged inside the seat body 100 and extends from the inside of the seat body 100 through the slot 121 to the rear of the seat 100. The slot 121 also allows relative movement between the seat limit assembly 300 and the seat body 100.

[0035] 1 and 4A, the seat body 100 can move along a tilt adjustment path 130 relative to the mounting base 200. Fig. 4A illustrates the tilt adjustment path 130 in a schematic, non-limiting manner, merely to help those skilled in the art understand the positional relationship between the seat body 100 and the mounting base 200 and the positional relationship between the seat body 100 and the seat limiting assembly 300. In the embodiment shown in Fig. 4A, the tilt adjustment path 130 includes a general forward-backward movement of the bottom portion 110 of the seat 1 along a longitudinal curve 131 and a general up-down movement of the backrest portion 120 of the seat 1 along a vertical forward-tilt curve 132.

[0036] A seat slide bar 140 extending laterally is provided below the seat body 100, and a pair of mounting base slide slots 220 are provided above the mounting base 200. Each seat slide bar 140 is provided in a pair of mounting base slide slots 220, allowing the seat body 100 to move relative to the mounting base 200 along the elevation / tilt adjustment path 130. The seat body 100 and / or the mounting base 200 may further be provided with a control mechanism for limiting or allowing movement of the seat body 100, and a description thereof will be omitted here. It should be understood that, as shown in FIGS. 4A, 5A, and 6, the seat limiting assembly vertical portion 330 of the seat limiting assembly 300 is provided on the mounting base 200 and does not substantially move together with the seat body 100.

[0037] In one embodiment, the mounting base 200 is a swivel seat that further provides a rotation function for the seat body 100. The mounting base 200 is generally disk-shaped and is provided above the base 2 so as to allow the seat body 100 to rotate relative to the base 2 about a generally vertical axis 210. The generally vertical axis 210 may have a slight forward tilt angle. The seat body 100 is provided above the mounting base 200 and can rotate relative to the mounting base 200 along a tilt adjustment path 130. By rotating the seat body 100 together with the mounting base 200 about the vertical axis 210, the seat body 100 can have two positions: a forward-facing position in which the backrest 120 faces backward, and a rearward-facing position in which the backrest 120 faces forward. In the forward-facing position, the backrest 120 of the seat 1 is adjacent to the rear side of the base 2, and in the rearward-facing position, the backrest 120 of the seat 1 is adjacent to the front side of the base 2.

[0038] The seat limiting assembly 300 is mounted on the mounting base 200 and connected to the seat main body 100. More specifically, the seat limiting assembly vertical portion 330 of the seat limiting assembly 300 is mounted on the slide slot member 220 of the mounting base 200. For example, in this embodiment, the mounting base 200 has two sets of slide slot members 220. The two seat limiting assembly vertical portions 330 are respectively mounted on the rear portion of the mounting base 200 in the longitudinal direction. For example, as shown in FIGS. 4A, 5A, and 6, the two seat limiting assembly vertical portions 330 are respectively mounted on each slide slot member 220 of the set of slide slot members 220 located at the rear portion in the longitudinal direction. The base limiting assembly 400 and the seat limiting assembly 300 are configured such that when the seat main body 100 rotates to a limit angle relative to the mounting base 200, the base limiting assembly 400 engages with the seat limiting assembly 300 to limit the longitudinal movement of the seat main body 100 along the front-to-rear direction.

[0039] In this embodiment, the limit angle corresponds to a forward position of the seat 1, i.e., a position in which the backrest portion 120 is located rearward. In other embodiments, depending on specific requirements, the limit angle may correspond to other positions of the seat 1, for example, a rearward position or a lateral position.

[0040] The seat restraint assembly 300 and the base restraint assembly 400 of the first embodiment will be specifically described below with reference to FIGS. 4B to 7. FIG.

[0041] The seat restraint assembly 300 includes a seat restraint assembly vertical portion 330, a first engagement portion (in the form of a first engagement hook 310 in this embodiment), and a body connection portion 350.

[0042] As shown in FIGS. 6 and 7 , the seat restraint assembly vertical portion 330 is a portion that connects the seat restraint assembly 300 to the mounting base 200. The seat restraint assembly vertical portion 330 extends upward from the periphery of the mounting base 200. In this embodiment, two seat restraint assembly vertical portions 330 are provided symmetrically on the left and right sides of the seat 1 corresponding to the circumferential positions of the backrest portion 120 of the seat 1, and extend upward along the backrest portion 120. In other embodiments, one or more seat restraint assembly vertical portions 330 may be provided. The seat restraint assembly vertical portions 330 may extend at a slight rearward angle to provide space for the backrest portion 120 of the seat main body 100.

[0043] The first engagement portion is a portion that engages the seat restraint assembly 300 with the base restraint assembly 400. In this embodiment, as shown in FIGS. 4A to 5B , the first engagement portion (i.e., the first engagement hook 310) engages with the second engagement hook 410 of the seat restraint assembly 400. The first engagement portion is provided at the upper end of the seat restraint assembly vertical portion 330. More specifically, the first engagement portion may extend rearward from the upper end of the seat restraint assembly vertical portion 330. When the seat main body 100 rotates to the limit angle, the first engagement portion engages with the base restraint assembly 400. In this embodiment, the first engagement portion includes a first engagement hook 310 that is provided laterally between the two seat restraint assembly vertical portions 330. As shown in FIG. 6 , the first engagement hook 310 includes an engagement portion 309 and two bent portions 311. The engagement portion 309 extends in an arc shape in the horizontal direction, has a hook-shaped cross section, and is open at both horizontal ends. More specifically, the center of curvature of the arc of the engagement portion 309 may be located on the vertical axis 210 so that the engagement portion 309 is inserted into the base limiting assembly 400 as the seat 1 rotates. Two bent portions 311 extend forward in the vertical direction from both horizontal ends of the engagement portion 309, respectively, and the free ends of each bent portion 311 are engaged with the upper ends of the corresponding seat limiting assembly vertical portions 330.

[0044] In other embodiments, the first engagement hook 310 may be formed directly on the seat restraint assembly vertical portion 330. That is, the seat restraint assembly vertical portion 330 and the first engagement hook 310 may be integrally formed.

[0045] 4B and 5B , the engagement portion 309 has a first vertical wall 312, a second vertical wall 313, a bottom wall 314, and an open upper side 315 (i.e., an open portion of the engagement portion 309 facing the bottom wall 314). The first vertical wall 312 is connected to the seat limiting assembly vertical portion 330 via a bent portion 311, i.e., the bent portion 311 extends forward in the longitudinal direction from both lateral ends of the first vertical wall 312. The second vertical wall 313 is located rearward of the first vertical wall 312, and the bottom wall 314 is connected between the bottom sides of the first vertical wall 312 and the second vertical wall 313, with the open upper side 315 facing the bottom wall 314. In this way, when the engagement portion 309 engages with the base limit assembly 400, the second vertical wall 313 can abut against the base limit assembly 400 (specifically, the third vertical wall 411) to prevent the seat 1 from moving forward.

[0046] The body connection portion 350 is a portion that connects the seat limiting assembly 300 to the seat main body 100 and allows the seat main body 100 to move relative to the mounting base 200 (i.e., move along the elevation / depression adjustment path 130). In this embodiment, the body connection portion 350 is pivotally connected to the backrest frame 150 of the seat main body 100. The backrest frame 150 is provided behind the backrest portion 120 of the seat main body 100. As shown in FIGS. 4B and 5B , the body connection portion 350 is connected to the top end of the seat limiting assembly vertical portion 330 and is provided between the backrest frame 150 of the seat main body 100 and the seat limiting assembly vertical portion 330. The main body connection portion 350 includes a crossbar 351 and a connecting lever 352. The crossbar 351 is provided laterally between the two seat limiting assembly vertical portions 330, and the connecting lever 352 extends in a substantially vertical direction, with both ends of the connecting lever 352 pivotally connected to the crossbar 351 and the seat main body 100, respectively. Fig. 4B shows a state in which the main body connection portion 350 corresponds to the supine position of the seat 1, and Fig. 5B shows a state in which the main body connection portion 350 corresponds to the upright position of the seat 1.

[0047] The number of connecting levers 352 is provided to correspond to the number of seat limiting assembly vertical portions 330. In an embodiment where two seat limiting assembly vertical portions 330 are provided, two connecting levers 352 are provided correspondingly, each connected to the corresponding seat limiting assembly vertical portion 330 and each connected to the seat main body 100. An extended hole 352a extending in the same direction as the connecting lever 352 is provided in each connecting lever 352, and a vertical portion hole 331 is provided at the upper end of each seat limiting assembly vertical portion 330 (FIG. 7). The crossbar 351 is provided in the vertical portion hole 331, drilled in the extended hole 352a, and pivotally connected to the connecting lever 352, and is movable within the extended hole 352a. More specifically, the crossbar 351 has substantially the same cross-sectional shape as the vertical portion hole 331; for example, both are circles with substantially the same diameter. Furthermore, the cross-sectional size of the cross bar 351 is slightly smaller than the cross-sectional size of the extended hole 352a. In this manner, the seat limiting assembly 300 allows the seat body 100 to move along the elevation adjustment path 130, while connecting the seat body 100 to the base 2 via the connecting lever 352, thereby limiting the movement of the seat body 100 along the vertical direction.

[0048] As mentioned above, the base limiting assembly 400 includes a second engagement portion.

[0049] The strut vertical portions 510 of the strut 500 are portions that connect the base limit assembly 400 to the base 2. The two strut vertical portions 510 are provided symmetrically on the left and right sides of the base 2 and extend upward from the rear edge of the base 2 in the vertical direction. A second engagement portion is provided between the two strut vertical portions 510, and when the seat main body 100 rotates to the limit angle, the second engagement portion engages with the first engagement portion of the seat limit assembly 300.

[0050] More specifically, in this embodiment, the second engagement portion includes a second engagement hook 410 disposed between two strut vertical portions 510. The second engagement hook 410 extends laterally, has a hook-shaped cross section, and is open at both lateral ends. In one embodiment, the first engagement hook 310 extends laterally in an arc shape around the vertical axis 210 (see FIG. 6 ), and the second engagement hook 410 assumes approximately the same arc shape so as to engage with the first engagement hook 310 of the seat restraint assembly 300 as the seat 1 rotates. However, it should be understood that the arc shapes of the first engagement hook 310 and the second engagement hook 410 are not required, and both can extend approximately linearly along the lateral direction. It should be understood that a guide structure may be provided at the opening where the first engagement hook 310 and the second engagement hook 410 engage to facilitate engagement between the first engagement hook 310 and the second engagement hook 410.

[0051] In one embodiment, the second engagement hook 410 includes a base engagement piece and a stiffener 420, the stiffener 420 being disposed laterally between the two strut vertical portions 510, the base engagement piece being attached to the bottom side of the stiffener 420 and having a hook-shaped cross section for engaging the seat restraint assembly 300. In other embodiments, the base engagement piece may be omitted, and the stiffener 420 may directly form the hook-shaped cross section.

[0052] 4B and 5B, the second engagement hook 410 has a third vertical wall 411 and an upper wall 412, where the upper wall 412 is connected to the strut vertical portion 510 and the third vertical wall 411 extends downward from the front end of the upper wall 412. The third vertical wall 411 engages with the seat limiting assembly 300 (specifically, the second vertical wall 313) to prevent the seat 1 from moving forward.

[0053] Next, a second embodiment of a child car seat according to the present application will be described with reference to FIGS. 8 to 10B.

[0054] The second embodiment differs from the first embodiment in that the first engagement hook 310 has a different configuration.

[0055] In this embodiment, the first engagement portion includes a hook-shaped portion 320, which extends in a hook-like manner from an upper end of the seat limiting assembly vertical portion 330 and engages with the base limiting assembly 400. The hook-shaped portion 320 includes a longitudinally extending portion 321 extending rearward from the upper end of the seat limiting assembly vertical portion 330, and a vertically extending portion 322 extending upward from the rear end of the longitudinally extending portion 321, and the vertically extending portion 322 engages with the base limiting assembly 400 to limit the forward movement of the seat 1.

[0056] In this embodiment, the hook portion 320 and the seat restraint assembly vertical portion 330 are integrally formed plates. The seat restraint assembly 300 further includes anti-collision buffers 360, which are attached to both lateral sides of the hook portion 320 and have substantially the same outer contour shape as the hook portion 320. However, the anti-collision buffers 360 are not required, and in other embodiments, the anti-collision buffers 360 may not be provided.

[0057] Next, a child car seat according to a third embodiment of the present application will be described with reference to FIGS.

[0058] The third embodiment differs from the first embodiment in that the main body connection portion 350 has a different configuration. In the third embodiment, the main body connection portion 350 includes a slide bar 353 and a slide slot member 354 having a slide slot in a substantially vertical direction. The slide bar 353 is provided on the seat limiting assembly vertical portion 330, and the slide slot member 354 is provided on the backrest frame 150 of the seat main body 100. More specifically, the slide bar 353 is provided between the two seat limiting assembly vertical portions 330. The slide slot member 354 is an orifice plate having a slide slot, and the extension direction of the slide slot coincides with the elevation adjustment path 130 of the seat main body 100. In this way, the slide bar 353 is drilled into the slide slot member 354, and when the seat body 100 is adjusted in elevation, the slide bar 353 can move within and relative to the slide slot member 354 as the seat body 100 moves along a predetermined elevation adjustment path 130 relative to the mounting base 200.

[0059] The slide slot member 354 may be provided on the outside of the seat restraint assembly vertical part 330 (see FIG. 14B) or on the inside of the seat restraint assembly vertical part 330 (see FIG. 15B). In FIGS. 14B and 15B, the slide slot member 354 is provided as a separate member and is provided at the rear of the seat main body 100.

[0060] Next, a fourth embodiment of the child car seat according to the present application will be described with reference to FIG.

[0061] The fourth embodiment is almost the same as the third embodiment. The difference between the two is that in the fourth embodiment, the slide slot member 354 is provided on the seat limiting assembly vertical portion 330, and the slide bar 353 is provided on the seat main body 100. Similarly, the slide slot member 354 may be omitted, in which case the slide slot is directly opened on the seat limiting assembly vertical portion 330.

[0062] Next, a fifth embodiment of a child car seat according to the present application will be described with reference to FIGS. 19A to 20B.

[0063] In the fifth embodiment, the seat limiting assembly 300 includes a first engagement portion (specifically, a first engagement hook 310) and a main body connection portion 350, but does not need to include a seat limiting assembly vertical portion 330. The main body connection portion 350 does not allow relative movement between the seat main body 100 and the seat limiting assembly 300 as in the first to fourth embodiments, but connects the seat limiting assembly 300 to the backrest frame 150 of the seat main body 100 (i.e., the first engagement hook 310 is connected to the backrest portion 150 of the seat main body 100). The main body connection portion 350 can be connected to the backrest frame 150 using a general connection method, so a detailed description will be omitted. Therefore, in this embodiment, relative vertical movement between the first engagement portion and the second engagement portion is allowed.

[0064] The first engagement hook 310 of the seat limiting assembly 300 and the second engagement hook 410 of the base limiting assembly 400 are engaged with each other so that the first engagement portion and the base limiting assembly 400 can move relative to each other as the seat main body 100 moves along the predetermined elevation / depression adjustment path 130 relative to the mounting base 200. In other words, the first engagement portion and the second engagement portion can be engaged to move up and down relative to each other.

[0065] More specifically, the first engagement portion includes a first engagement hook 310 provided between two seat limiting assembly vertical portions 330. The first engagement hook 310 extends laterally in an arc shape, has a hook-shaped cross section, and is open at both lateral ends. As shown in FIG. 19B , when viewed from the lateral direction, the first engagement hook 310 has a first vertical wall 316, a second vertical wall 317, a rear wall 318, and an open front side 319. The first vertical wall 316 is connected to the seat main body 100, the second vertical wall 317 is located above the first vertical wall 316, the rear wall 318 is connected between the rear side of the first vertical wall 316 and the rear side of the second vertical wall 317, and the open front side 319 faces the rear wall 318 and the seat main body 100. The first engagement hook 310 can move within a range of movement relative to the base limit assembly 400, and the rear wall 318 abuts against the base limit assembly 400 to prevent the seat 1 from moving forward.

[0066] Correspondingly, the second engagement portion includes a second engagement hook 410 provided between two strut vertical portions 510. When viewed from the side, the second engagement hook 410 has a third vertical wall 413, a fourth vertical wall 414, and an end wall 415, where the third vertical wall 413 is connected to the strut vertical portion 510, the fourth vertical wall 414 is located lower than the third vertical wall 413, and the end wall 415 is connected between the front sides of the third vertical wall 413 and the fourth vertical wall 414. The second engagement hook 410 can move within a movement range relative to the seat limiting assembly 300, and the fourth vertical wall 414 abuts against the seat limiting assembly 300 to prevent the seat 1 from moving forward.

[0067] More specifically, the rear wall 318 of the first engagement hook 310 can abut against the fourth vertical wall 414 of the second engagement hook 410, and the second vertical wall 317 of the first engagement hook 310 can abut against the end wall 415 of the second engagement hook 410, thereby preventing the seat 1 from moving forward relative to the base 2.

[0068] As described above, the present invention provides a child car seat that allows the seat body to be adjusted up and down while simultaneously engaging with the base. In this way, forward movement of the seat body relative to the base can be limited in the event of a vehicle collision, thereby improving safety. The present application also allows the seat body to be rotated between a forward-facing position and a rearward-facing position. Research by the inventors has shown that in the event of a vehicle collision, the seat body can move forward relative to the base, resulting in significant displacement of the child's head. The connection mechanism of the present application limits movement of the seat body relative to the base, improving the safety performance of the child car seat.

[0069] Because the present invention can be embodied in various forms without departing from its spirit and essence, it should be understood that the above-described embodiments should not be limited to any of the above-described details, but should be construed in the broadest sense as defined by the scope of the claims, and therefore, all modifications that come within the scope of the claims or their equivalents should be embraced by the scope of the claims. [Explanation of symbols]

[0070] 1 sheet 100 sheet body 110 Bottom 120 Backrest 121 Slots 130 Pitch adjustment path 131 Vertical Curve 132 Vertical forward curve 140 Seat slide bar 150 Backrest Frame 200 Mounting base 210 Vertical Axis 220 Mounting base slide slot member 300 Seat Limit Assembly 310 first engagement hook 309 Engagement part 311 Bend 312 First Vertical Wall 313 Second Vertical Wall 314 Bottom Wall 315 Open upper side 316 First Vertical Wall 317 Second Vertical Wall 318 Back wall 319 Open front side 320 Unicum 321 Vertical extension 322 Vertical extension part 330 Sheet limit assembly vertical section 331 Vertical hole 350 Main unit connection part 351 Crossbar 352 Connecting lever 352a extension hole 353 Slide Bar 354 Slide slot member 360 anti-collision buffer 2. Bass 400 Base Limit Assembly 410 Second Snap Hook 411 Third Vertical Wall 412 Top wall 413 Third Vertical Wall 414 Fourth Vertical Wall 415 End Wall 420 Reinforcement 500 strut 510 Strut vertical section 520 Strut side part

Claims

1. a base (2) including a base limiting assembly (400); A seat (1) provided above the base (2), The sheet (1) is An attachment base (200) provided above the base (2); a seat body (100) that is provided above the mounting base (200) and that can move along a tilt adjustment path (130) relative to the mounting base (200); a seat restraining assembly (300) provided on the seat (1) and connected to the seat body (100); The base limiting assembly (400) engages with the seat limiting assembly (300) to limit the longitudinal movement of the seat body (100).

2. the mounting base (200) is a rotating seat provided above the base (2) so that the seat (1) can rotate about a substantially vertical axis (210) relative to the base (2); 2. The child seat of claim 1, wherein the base limit assembly (400) and the seat limit assembly (300) are configured such that, when the seat body (100) is rotated to a forward position, the base limit assembly (400) engages with the seat limit assembly (300) to limit longitudinal movement of the seat body (100) generally along a fore-aft direction.

3. 3. A child seat as claimed in claim 1 or 2, wherein the base restraint assembly (400) is provided at the longitudinal rear edge of the base (2).

4. The seat (1) is rotatable with respect to the base (2) between a forward position and a rearward position, and in the forward position, a backrest portion (120) of the seat (1) is adjacent to a rear side of the base (2), and in the rearward position, the backrest portion (120) of the seat (1) is adjacent to a front side of the base (2); 4. The child seat of claim 2 or 3, wherein the elevation adjustment path (130) includes a generally forward-backward movement of the bottom (110) of the seat (1) along a longitudinal curve (131) and a generally up-down movement of the backrest (120) of the seat (1) along a vertical forward-tilting curve (132).

5. The seat restraining assembly (300) comprises: a seat restraining assembly vertical portion (330) extending upwardly from a periphery of the mounting base (200); a first engagement portion provided at an upper end of the seat limiting assembly vertical portion (330) and engaging with the base limiting assembly (400) when the seat body (100) rotates to a limit angle; 5. The child seat according to claim 1, further comprising: a body connection portion (350) connected between the seat body (100) and the seat limiting assembly vertical portion (330).

6. The seat limiting assembly vertical portion (330) is provided in two portions, and is provided symmetrically with respect to the seat (1) corresponding to the circumferential position of the backrest portion (120) of the seat (1), and extends upward along the backrest portion (120); The child seat according to claim 5, wherein the body connection portion (350) is provided in two portions, each of which is connected to a corresponding one of the seat restraint assembly vertical portions (330).

7. The first engagement portion includes a first engagement hook (310) disposed laterally between two of the seat limiting assembly vertical portions (330); 7. The child seat according to claim 6, wherein the first engagement hook (310) includes an engagement portion (309) extending laterally, having a hook-shaped cross section, and open at both lateral ends.

8. The first engagement hook (310) further includes two bent portions (311) extending forward in the vertical direction from both ends of the engagement portion (309) in the horizontal direction, 8. The child seat according to claim 7, wherein a free end of each of the bent portions (311) is engaged with an upper end of a corresponding one of the seat restraint assembly vertical portions (330).

9. The engagement portion (309) has a first vertical wall (312), a second vertical wall (313), a bottom wall (314) and an open top side (315); The bent portion (311) extends forward in the vertical direction from both ends in the horizontal direction of the first vertical wall (312), the second vertical wall (313) is located behind the first vertical wall (312), the bottom wall (314) is connected between the bottom side of the first vertical wall (312) and the bottom side of the second vertical wall (313), and the open upper side (315) faces the bottom wall (314); 9. The child seat of claim 8, wherein the engagement portion (309) is engaged with the base limit assembly (400) so that the second vertical wall (313) abuts against the base limit assembly (400) to prevent forward movement of the seat (1).

10. The body connection portion (350) includes a crossbar (351) and a connecting lever (352), 10. A child seat as described in any one of claims 6 to 9, wherein the crossbar (351) is arranged laterally between the two seat limiting assembly vertical portions (330), the connecting lever (352) extends approximately vertically, and both ends of the connecting lever (352) are pivotally connected to the crossbar (351) and the seat body (100), respectively.

11. Two connecting levers (352) are provided, and an extension hole (352a) extending in the same direction as the connecting levers (352) is provided in each connecting lever (352); The child seat of claim 10, wherein the crossbar (351) is inserted into the extension hole (352a) and pivotally connected to the connecting lever (352), and the crossbar (351) is movable within the extension hole (352a) relative to the extension hole (352a).

12. 12. The child seat according to claim 5, wherein the first engagement portion includes a hook-shaped portion (320) extending in a hook-like manner from an upper end of the seat limiting assembly vertical portion (330) and engaging with the base limiting assembly (400).

13. 13. The child seat of claim 12, wherein the hook-shaped portion (320) includes a longitudinal extension portion (321) extending rearward from an upper end of the seat limiting assembly vertical portion (330) and a vertical extension portion (322) extending upward from a rear end of the longitudinal extension portion (321), the vertical extension portion (322) engaging with the base limiting assembly (400) to limit forward movement of the seat (1).

14. the hook portion (320) and the seat limiting assembly vertical portion (330) are integrally formed plates; 14. The child seat according to claim 13, wherein the seat restraint assembly (300) further includes anti-collision buffers (360) attached to both lateral sides of the hook (320) and having substantially the same outer contour shape as the hook (320).

15. The body connection portion (350) includes a slide bar (353) and a slide slot member (354) having an elongated slide slot, The slide bar (353) is provided on one of the seat body (100) and the seat limiting assembly vertical portion (330), and the slide slot member (354) is provided on the other of the seat body (100) and the seat limiting assembly vertical portion (330); A child seat as described in any one of claims 5 to 14, wherein the slide bar (353) is drilled into the slide slot member (354) and can move within the slide slot member (354) relative to the slide slot member (354) as the seat body (100) rotates along the elevation adjustment path (130) relative to the mounting base (200).

16. The seat restraint assembly (300) is connected to the seat body (100) by the body connection part (350), 16. A child seat as described in any one of claims 5 to 15, wherein the first engagement portion and the base limit assembly (400) are engaged with each other such that the first engagement portion and the base limit assembly (400) can move relative to each other as the seat body (100) moves along the elevation adjustment path (130) relative to the mounting base (200).

17. The first engagement portion includes a first engagement hook (310) provided between the two seat restraint assembly vertical portions (330), the first engagement hook (310) extending laterally, having a hook-shaped cross section, and both lateral ends being open; The first engagement hook (310) has a first vertical wall (316), a second vertical wall (317), a rear wall (318), and an open front side (319), the first vertical wall (316) is connected to the seat body (100), the second vertical wall (317) is located above the first vertical wall (316), the rear wall (318) is connected between the rear side of the first vertical wall (316) and the rear side of the second vertical wall (317), the open front side (319) faces the rear wall (318) and faces the seat body (100), 17. The child seat of claim 16, wherein the first engagement hook (310) can move within a range of movement relative to the base limit assembly (400), and the rear wall (318) abuts against the base limit assembly (400) to prevent forward movement of the seat (1).

18. The base (2) is Two strut vertical portions (510) are provided symmetrically with respect to the base (2) and extend upward from the longitudinal rear edge of the base (2); 18. The child seat according to claim 5, further comprising: a second engagement portion provided between the two strut vertical portions (510) and engaged with the seat restraint assembly (300).

19. The second engagement portion includes a second engagement hook (410) provided between the two strut vertical portions (510), 20. The child seat according to claim 18, wherein the second engagement hook (410) extends laterally, has a hook-shaped cross section, and is open at both lateral ends.

20. The second engagement portion further includes a reinforcement (420) disposed laterally between the two strut vertical portions (510); 20. The child car seat according to claim 19, wherein the second engagement hook (410) is a base engagement piece attached to a bottom side of the stiffener (420).

21. The second engagement hook (410) includes a third vertical wall (411) and an upper wall (412), the upper wall (412) is connected to the strut vertical portion (510), and the third vertical wall (411) extends downward from a front end of the upper wall (412); 21. A child safety seat as claimed in claim 20, wherein the engagement between the third vertical wall (411) and the seat limiting assembly (300) prevents forward movement of the seat (1).

22. The second engagement hook (410) has a third vertical wall (413), a fourth vertical wall (414), and an end wall (415), the third vertical wall (413) is connected to the strut vertical portion (510), the fourth vertical wall (414) is located below the third vertical wall (433), and the end wall (415) is connected between a front side of the third vertical wall (413) and a front side of the fourth vertical wall (414); 22. The child seat according to claim 19, wherein the second engagement hook (410) can move within a range of movement relative to the seat limiting assembly (300), and the fourth vertical wall (414) abuts against the seat limiting assembly (300) to prevent forward movement of the seat (1).

23. 23. The child seat of claim 1, wherein while the seat body (100) moves along the elevation adjustment path (130), the seat (1) is always engaged with the base (2) via the seat limit assembly (300) and the base limit assembly (400), and the relative position between the first engagement portion of the seat limit assembly (300) and the second engagement portion of the base limit assembly (400) remains almost unchanged.

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