Child carrier

Abstract

The present application relates to a kind of child carriers, comprising: frame;Seat frame is set on the frame;And chair back frame, comprising: backrest assembly, the backrest assembly can be rotated between a vertical position and a horizontal position relative to the seat frame;Headrest assembly, top of the backrest assembly is connected;Linking side piece, with the backrest assembly sliding connection, the top of the linking side piece is connected to the headrest assembly, the bottom of the linking side piece is connected with the seat frame by a connecting belt;And elastic element, be arranged between the backrest assembly and the headrest assembly.The child carrier described above, by the linkage structure design between backrest assembly, headrest assembly and linking side piece, again cooperate connecting belt and elastic element, when backrest assembly rotates, headrest assembly can also rotate together, in this way, user only needs to operate backrest assembly, can link headrest assembly to its appropriate corresponding position, improve the convenience and safety.

Description

Technical Field

[0001] This invention relates to a child vehicle, and more particularly to a child vehicle with a movable backrest. Background Technology

[0002] Common child vehicles on the market, such as strollers, include a backrest with a headrest. The backrest can rotate relative to the frame to a tilted position and a horizontal position. The headrest is attached to the top edge of the backrest and can rotate relative to the backrest to a position that is approximately parallel or perpendicular to the backrest.

[0003] When a toddler is sitting in the stroller, the backrest can be rotated to a tilted position so that the toddler's back can rest against it. At this time, the headrest can be adjusted to be roughly parallel to the backrest. When the baby needs to lie flat, such as when sleeping or changing diapers, rotating the backrest to a horizontal position allows the toddler to lie more comfortably on the backrest. At the same time, rotating the headrest to be roughly perpendicular to the backrest provides a stop for the toddler's head, preventing the toddler from sliding out towards the headrest. Summary of the Invention

[0004] Therefore, it is necessary to provide a child vehicle with an automatically retractable headrest.

[0005] A child vehicle includes: a frame; a seat frame disposed on the frame; and a backrest frame including: a backrest assembly rotatable relative to the seat frame between a vertical position and a horizontal position; a headrest assembly pivotally connected to the top of the backrest assembly; a connecting side member slidably connected to the backrest assembly, the top of the connecting side member being pivotally connected to the headrest assembly, and the bottom of the connecting side member being connected to the seat frame via a connecting strap; and an elastic member disposed between the backrest assembly and the headrest assembly.

[0006] In the aforementioned child vehicle, the linkage structure between the backrest assembly, headrest assembly, and linkage side components, along with the connecting strap and elastic element, enables the headrest assembly to rotate simultaneously when the backrest assembly rotates. In this way, the user only needs to operate the backrest assembly to move the headrest assembly to its appropriate corresponding position, improving ease of use and safety.

[0007] In one embodiment, the backrest assembly includes a backrest support and a canopy fixing seat fixedly disposed on the backrest support. The bottom of the backrest support is pivotally connected to the seat frame, and the linkage side member is slidably connected to one end of the canopy fixing seat.

[0008] In one embodiment, the linkage side member is provided with a sliding groove, and the top of the canopy fixing seat is provided with a positioning pin that can slide in the sliding groove.

[0009] In one embodiment, when the locating pin is located at either end of the slide, the linkage side member can rotate about the locating pin relative to the canopy fixing seat.

[0010] In one embodiment, the linkage side member is provided with a hanging ear, the seat frame is provided with a fixing hole, the backrest frame also includes a connecting seat pivotally connected to the seat frame, the connecting seat is provided with a limiting hole, one end of the connecting strap is fixed to the hanging ear, and the other end of the connecting strap passes through the limiting hole and is fixed in the fixing hole.

[0011] In one embodiment, the connecting strap is a flexible webbing. When the backrest assembly is in a vertical position, the connecting strap is in a relaxed state; when the backrest assembly is in a horizontal position, the connecting strap is in a taut state.

[0012] In one embodiment, the backrest assembly further includes an angle adjustment mechanism for adjusting the tilt angle of the backrest support relative to the seat frame.

[0013] In one embodiment, the backrest assembly further includes a first canopy support strip and a second canopy support strip, wherein the two ends of the first canopy support strip are respectively pivotally connected to two canopy fixing seats, and the two ends of the second canopy support strip are respectively fixed to two canopy fixing seats.

[0014] In one embodiment, the elastic element is a torsion spring, used to keep the headrest assembly parallel to the backrest assembly.

[0015] In one embodiment, the elastic element includes a torsion spring portion fixed to the top section of the backrest assembly and a push portion connected to the torsion spring portion and capable of abutting against the front of the headrest assembly.

[0016] In one embodiment, the headrest assembly has a plate-like structure, and the top of the connecting side member is pivotally connected to the left and right sides of the headrest assembly, respectively.

[0017] In one embodiment, the frame includes a rider pushrod, and the bottom end of the seat frame and the linkage side member is pivotally connected to the rider pushrod.

[0018] In one embodiment, the seat frame includes a seat support rod and a seat plate, the seat plate sliding on the seat support rod under the drive of the driver's push rod. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a child vehicle according to one embodiment.

[0021] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0022] Figure 3 for Figure 1 A three-dimensional view of the child vehicle shown from another angle.

[0023] Figure 4 for Figure 3 A magnified view of a section at point B in the middle.

[0024] Figure 5 This is a perspective view of a child vehicle according to an embodiment, wherein the backrest assembly is located in a vertical position.

[0025] Figure 6 for Figure 5 A magnified view of a section at point C.

[0026] Figure 7 for Figure 5 Side view of the child vehicle shown.

[0027] Figure 8 This is a perspective view of a child vehicle according to one embodiment, wherein the backrest assembly is located in a horizontal position.

[0028] Figure 9 for Figure 8 Side view of the child vehicle shown.

[0029] Figure 10 for Figure 9 A side view of another state of the child vehicle shown. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] As described in the background section, the current stroller has the following drawbacks: the headrest needs to be manually operated by the user to rotate relative to the backrest, and the headrest cannot automatically return to a roughly parallel position with the backrest when the backrest is rotated from a horizontal position to a tilted position. This is slightly inconvenient to use, and there are safety issues or discomfort for the child during the backrest rotation. To overcome these problems, it is necessary to provide a child carrier with an automatically retractable headrest.

[0034] See Figure 1 According to one embodiment, a child vehicle 100 includes a frame 10, a seat frame 20, and a backrest frame 30. The seat frame 20 is disposed on the frame 10. The backrest frame 30 is pivotally disposed on the seat frame 20.

[0035] The frame 10 includes a pair of front legs 11, a pair of rear legs 12, a handlebar 13, two handrails 15, and two auxiliary rods 16. Wheels (not shown) are connected to the ends of the front legs 11 and rear legs 12, respectively. The tops of the front legs 11 and rear legs 12, located on the same side, are pivotally connected to the front end of the handrail 15 on the same side. In this embodiment, the handlebar 13 is generally U-shaped with two side segments 131 spaced apart. The bottom ends of the two side segments 131 are pivotally connected to the two rear legs 12. The two auxiliary rods 16 are located inside the two side segments 131 of the handlebar 13, and the extension direction of the auxiliary rods 16 is generally the same as that of the side segments 131. The bottom end of the auxiliary rod 16 is pivotally connected to the bottom end of the side segments 131, and the rear end of the handrail 15 is pivotally connected to the top end of the auxiliary rod 16.

[0036] like Figure 1As shown, the seat frame 20 includes a pair of seat support rods 21 and a seat plate 22 that can slide on the seat support rods 21. Specifically, the seat support rods 21 are generally L-shaped, with one end pivotally connected to the front footrest 11 and the other end pivotally connected to the auxiliary rod 16. The rear ends of the seat plate 22 are pivotally connected to the two auxiliary rods 16 respectively. The seat plate 22 has sleeve portions 222 on both sides. The sleeve portions 222 are fitted onto the seat support rods 21 and can slide on the seat support rods 21 under the action of the handbrake push rod 13.

[0037] like Figures 2 to 4 As shown, the chair back frame 30 includes a backrest assembly 32, a headrest assembly 34, and an elastic element 36 (see...). Figure 5 ), a pair of linkage side members 38, and a pair of connecting seats 39.

[0038] The backrest assembly 32 includes a backrest support 322 and two canopy mounting brackets 324 fixedly mounted on the backrest support 322. The backrest support 322 is generally U-shaped and has two side sections 321 spaced apart from each other and a top section 323 connecting the tops of the two side sections 321. The end of each side section 321 is fixed to a connecting seat 39 and can rotate forward or backward relative to the seat frame 20 together with the connecting seat 39. The headrest assembly 34 is generally plate-shaped, and its lower end is rotatably connected to the top section 323 of the backrest support 322 via a hinge.

[0039] Please see Figure 5 and Figure 6 An elastic element 36 is disposed between the headrest assembly 34 and the backrest assembly 32. More specifically, the elastic element 36 includes two torsion spring portions 362 sleeved on the top section 323 of the backrest support 322, and a push portion 364 connected between the two torsion spring portions 362 and generally inverted U-shaped. The push portion 364 abuts against the front of the headrest assembly 34, and the two torsion spring portions 362 are subjected to a pre-compression torsional force, causing the push portion 364 to be biased backward toward the headrest assembly 34, thereby maintaining the headrest assembly 34 in a state that is generally parallel to the backrest assembly 32.

[0040] Please refer to it again. Figure 2Each canopy mounting base 324 is fixedly mounted on the side section 321 of the back support member 322, and the extension direction of the canopy mounting base 324 is approximately perpendicular to the side section 321. The back support assembly 32 also includes a first canopy support strip 332 and a second canopy support strip 334. The first canopy support strip 332 is approximately U-shaped, with its two ends pivotally connected to the top outer sides of the two canopy mounting bases 324. The shape of the second canopy support strip 334 is similar to that of the first canopy support strip 332, with its two ends fixed to one side of the two canopy mounting bases 324. The canopy (not shown) of the child vehicle 100 can be fitted between the first canopy support strip 332 and the second canopy support strip 334, and the unfolded area of ​​the canopy (not shown) can be adjusted by pivoting the first canopy support strip 332.

[0041] Please also refer to Figure 2 and Figure 3 Each linkage side member 38 is generally a slightly curved, hollowed-out strip, having a top end 382 and a bottom end 384. The top ends 382 of the two linkage side members 38 are pivotally connected to the left and right edges of the headrest assembly 34, respectively. Therefore, under the pull of the linkage side members 38, the headrest assembly 34 can overcome the elastic force of the elastic member 36 and rotate relative to the top section 323 of the backrest support member 322. The bottom end 384 of the linkage side member 38 has an elongated groove 386 along the axial direction, and the extension direction of the groove 386 is generally parallel to the side section 321 of the backrest support member 322. The inner side of the top of the canopy fixing seat 324 is provided with a positioning pin 326 that can slide within the groove 386. Furthermore, the positioning pin 326 is cylindrical, and the two ends of the slide groove 386 are arc-shaped, so that when the positioning pin 326 is located at either end of the slide groove 386, the connecting side member 38 can rotate around the positioning pin 326 relative to the canopy fixing seat 324 at a certain angle.

[0042] The two connecting seats 39 are pivotally connected to the seat frame 20. For details, please refer to the accompanying document. Figure 3 and Figure 4 The edge of the seat plate 22 of the seat frame 20 extends vertically upward to form a pivot portion 226. A connecting seat 39 is pivotally connected to the inside of the pivot portion 226 via a pin, thereby allowing the backrest support 322, fixed to the connecting seat 39, to rotate relative to the seat frame 20. (See also...) Figure 3 and Figure 4 The backrest assembly 32 also includes an angle adjustment mechanism 35. The angle adjustment mechanism 35 is roughly inverted U-shaped, with its end movably connected to the connecting seat 39. The angle adjustment mechanism 35 can adjust and lock the tilt angle of the backrest frame 30 relative to the seat frame 20, positioning it in a vertical position, a flat position, or any tilt position in between, providing users with more application scenarios.

[0043] Please also refer to Figure 2 and Figure 4The bottom of the connecting side member 38 is also connected to the seat frame 20 via a connecting strap 40. Specifically, the bottom end 384 of the connecting side member 38 is provided with a hook 388, and the seat plate 22 of the seat frame 20 has a fixing hole 224 near the connecting seat 39. The connecting seat 39 has a limiting hole 392. One end of the connecting strap 40 is fixed to the hook 388, and the other end passes through the limiting hole 392 and is fixed in the fixing hole 224 of the seat plate 22. It can be understood that in other embodiments, the connecting strap 40 can also be directly connected between the hook 388 and the fixing hole 224, in which case the limiting hole 392 can be omitted. The connecting strap 40 is a flexible webbing that can be bent, and the material can be such as nylon, fabric, rubber band, or metal chain. The connecting strap 40 has two states: loose and tight. The following describes them in detail in different usage scenarios.

[0044] Please also refer to Figures 5 to 7 When the backrest assembly 32 is in the vertical position, it is approximately upright relative to the seat frame 20. At this time, the positioning pin 326 is located at the end of the slide groove 386 near the connecting seat 39, and the connecting belt 40 is in a relaxed, unloaded state. The headrest assembly 34 is approximately parallel to the backrest assembly 32 due to the biasing force of the elastic member 36, so that when a child is seated in the child vehicle 100, their body can lean back against the backrest assembly 32, and their head can lean back against the headrest assembly 34.

[0045] Please also refer to Figure 8 and Figure 9 When a child in the child vehicle 100 needs to lie down, the backrest assembly 32 can be rotated backward via the angle adjustment mechanism 35, causing the connecting side member 38 to rotate relative to the seat frame 20 to a roughly horizontal position. During this process, the connecting belt 40 gradually changes from a slack state to a taut state, applying force to the connecting side member 38. This causes the positioning pin 326 to slide towards the end of the slide groove 386 away from the connecting seat 39, allowing the connecting side member 38 to slide downward relative to the canopy fixing seat 324. This further drives the headrest assembly 34 to overcome the elastic force of the elastic member 36 and rotate forward relative to the top section 323 of the backrest support member 322. When the positioning pin 326 is at the end of the slide groove 386 away from the connecting seat 39, the headrest assembly 34 rotates to a state approximately perpendicular to the backrest assembly 32. At this point, the torsion spring portion 362 of the elastic member 36 is torsional deformed, accumulating elastic restoring force. Figure 9 In the indicated position, the child can lie flat on the backrest component 32, which is in a roughly horizontal position, while the roughly vertical headrest component 34 can create a barrier-like effect, thereby preventing the child from sliding towards the head or falling off the child vehicle 100 and causing danger.

[0046] Similarly, when the backrest assembly 32 needs to be rotated from a horizontal position to a vertical position again, it can be rotated forward by releasing the angle adjustment mechanism 35. The connecting strap 40 gradually changes from a taut state to a slack state and stops applying tension to the connecting side member 38. Under the elastic restoring force of the elastic member 36, the headrest assembly 34 drives the connecting side member 38 to slide upward, eventually causing the headrest assembly 34 to return to a state that is approximately parallel to the backrest assembly 32.

[0047] In summary, through the linkage structure design between the backrest assembly 32, the headrest assembly 34 and the linkage side member 38, and in conjunction with the connecting belt 40 and the elastic member 36, the headrest assembly 34 can be rotated together when the backrest assembly 32 rotates. In this way, the user only needs to operate the backrest assembly 32 to move the headrest assembly 34 to its appropriate corresponding position, which improves the convenience and safety of use.

[0048] Please also refer to Figure 9 and Figure 10 In this embodiment, since the seat plate 22 of the seat frame 20 can slide relative to the seat support rod 21, when the handlebar 13 rotates relative to the frame 10, the seat plate 22 can move from a first position to a second position relative to the frame 10, thereby causing the child riding in the child vehicle 100 to move, that is, the center of gravity of the entire child vehicle 100 shifts. Thus, the user can rotate the handlebar 13 as needed to adjust the center of gravity of the child vehicle 100, so that the center of gravity of the child vehicle 100 shifts backward after a change of direction, making it easier to push. Compared to existing child vehicles where the backrest support, canopy fixing seat, etc., are directly fixed to the frame, in this embodiment, the backrest support 322, canopy fixing seat 324, and other components are directly mounted on the seat frame 20, therefore not affecting the forward and backward sliding of the seat plate 22.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A child vehicle, characterized in that, include: Frame; Seat frame, mounted on the vehicle frame; and Chair back frame, including: A backrest assembly that can rotate relative to the seat frame between a vertical position and a horizontal position; The headrest assembly is pivotally connected to the top of the backrest assembly; A connecting side member is slidably connected to the backrest assembly, the top of the connecting side member is pivotally connected to the headrest assembly, and the bottom of the connecting side member is connected to the seat frame via a connecting strap; and An elastic element is disposed between the backrest assembly and the headrest assembly.

2. The child vehicle according to claim 1, characterized in that, The backrest assembly includes a backrest support and a canopy fixing seat fixedly mounted on the backrest support. The bottom of the backrest support is pivotally connected to the seat frame, and the linkage side member is slidably connected to one end of the canopy fixing seat.

3. The child vehicle according to claim 2, characterized in that, The linkage side member is provided with a sliding groove, and the top of the canopy fixing seat is provided with a positioning pin that can slide in the sliding groove.

4. The child vehicle according to claim 3, characterized in that, When the locating pin is located at either end of the slide, the linkage side member can rotate relative to the canopy fixing seat about the locating pin.

5. The child vehicle according to claim 1, characterized in that, The linkage side member is provided with a hanging ear, the seat frame is provided with a fixing hole, the backrest frame also includes a connecting seat pivotally connected to the seat frame, the connecting seat is provided with a limiting hole, one end of the connecting strap is fixed to the hanging ear, and the other end of the connecting strap passes through the limiting hole and is fixed in the fixing hole.

6. The child vehicle according to claim 1, characterized in that, The connecting strap is a flexible webbing. When the backrest assembly is in a vertical position, the connecting strap is in a relaxed state; when the backrest assembly is in a horizontal position, the connecting strap is in a taut state.

7. The child vehicle according to claim 2, characterized in that, The backrest assembly also includes an angle adjustment mechanism for adjusting the tilt angle of the backrest support relative to the seat frame.

8. The child vehicle according to claim 2, characterized in that, The backrest assembly also includes a first canopy support strip and a second canopy support strip. The two ends of the first canopy support strip are pivotally connected to two canopy fixing seats, and the two ends of the second canopy support strip are fixed to two canopy fixing seats.

9. The child vehicle according to claim 1, characterized in that: The elastic element is a torsion spring, used to keep the headrest assembly parallel to the backrest assembly.

10. The child vehicle according to claim 9, characterized in that: The elastic element includes a torsion spring portion fixed to the top section of the backrest assembly and a push portion connected to the torsion spring portion and capable of abutting against the front of the headrest assembly.

11. The child vehicle according to claim 1, characterized in that: The headrest assembly has a plate-like structure, and the top of the connecting side member is pivotally connected to the left and right sides of the headrest assembly respectively.

12. The child vehicle according to claim 1, characterized in that: The frame includes a driver's pushrod, and the bottom ends of the seat frame and the connecting side member are pivotally connected to the driver's pushrod.

13. The child vehicle according to claim 12, characterized in that: The seat frame includes a seat support rod and a seat plate, and the seat plate slides on the seat support rod under the drive of the driver's push rod.

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