Child Carrier
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-02-22
- Publication Date
- 2026-03-16
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Current child carriers require manual operation of the headrest to adjust its position relative to the backrest, and the headrest does not automatically return to a parallel position, leading to inconvenience and potential safety issues when changing the backrest position.
A child carrier design featuring a backrest frame with a pivotally connected headrest assembly and an elastic element that automatically adjusts the headrest to remain parallel to the backrest during changes in the backrest position, ensuring convenience and safety.
The automatic adjustment of the headrest assembly enhances user convenience and ensures the safety of the child by preventing sliding and maintaining a comfortable position during various backrest configurations.
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Abstract
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to Chinese Patent Application No. 2022101629481, filed on February 22, 2022, the entire contents of which are incorporated herein by reference. [Technical field]
[0002] FIELD OF THE DISCLOSURE The present disclosure relates to child carriers, and more particularly to child carriers having a movable back frame. [Background technology]
[0003] Conventional child carriers currently on the market, such as baby strollers, include a backrest with a headrest. The backrest can be rotated to an inclined position and a horizontal position relative to the frame of the child carrier. The headrest is connected to the top end of the backrest and can be rotated relative to the backrest to a position approximately parallel or perpendicular to the backrest.
[0004] When a child is riding in the child carrier, the backrest can be rotated to an inclined position so that the child's back can abut against the backrest. At this time, the headrest can be adjusted to be approximately parallel to the backrest. When the child needs to lie down, such as for sleeping or changing a diaper, the backrest can be rotated to a horizontal position so that the child can lie down more comfortably on the backrest, and at the same time, the headrest can be rotated to a position approximately perpendicular to the backrest to provide a stopper in the direction of the child's head to prevent the child from sliding down toward the headrest. Summary of the Invention
[0005] According to various embodiments, a child carrier is provided.
[0006] The child carrier includes a main frame, a seat frame provided on the main frame, and a back frame. The back frame includes a back assembly that can rotate between a vertical position and a horizontal position relative to the seat frame, a headrest assembly pivotally connected to an upper portion of the backrest assembly, a connecting element slidably connected to the backrest assembly, and an elastic element provided between the backrest assembly and the headrest assembly. The top of the connecting element is pivotally connected to the headrest assembly, and the bottom of the connecting element is connected to the seat frame via a connecting belt.
[0007] The details of one or more embodiments of the present application are set forth in the drawings and description that follow. Other objects, aims and advantages will become apparent from a study of the following specification, drawings and claims. [Brief description of the drawings]
[0008] In order to more clearly describe the embodiments of the present application, the drawings used in the embodiments are briefly described.Obviously, the drawings described below are only for the embodiments of the present application, and other drawings can be derived by those skilled in the art without creative efforts.
[0009] [Figure 1] 1 is a perspective view of a child carrier according to one embodiment. [Diagram 2] FIG. 2 is a partially enlarged view of a portion A in FIG. [Diagram 3] 2 is a perspective view of the child carrier shown in FIG. 1, seen from another state. FIG. [Figure 4] FIG. 4 is a partially enlarged view of a portion B in FIG. [Diagram 5] FIG. 2 is a perspective view of a child carrier according to one embodiment showing the backrest assembly in a vertical position. [Figure 6] FIG. 6 is a partially enlarged view of a portion C in FIG. 5. [Figure 7] FIG. 6 is a side view of the child carrier shown in FIG. 5. [Figure 8]FIG. 1 is a perspective view of a child carrier according to one embodiment, showing the backrest assembly in a horizontal position. [Figure 9] FIG. 9 is a side view of the child carrier shown in FIG. 8. [Figure 10] 10 is a side view of the child carrier shown in FIG. 9 in another state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to allow the public content of the present application to be understood more completely and comprehensively.
[0011] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element, or there may be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element, or there may be intervening elements. As used herein, the terms "vertical," "horizontal," "top," "bottom," "left," "right," and similar expressions are for illustrative purposes only and do not represent the only embodiments.
[0012] 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 terms used herein in the description of this application are for the purpose of describing particular embodiments only and are not intended to be limiting of this application.
[0013] As described in the Background Art, the current disadvantages of child carriers are that the user needs to operate the headrest to rotate it relative to the backrest, and when the headrest is rotated from a horizontal position to an inclined position, the headrest cannot automatically return to a state approximately parallel to the backrest, which is inconvenient to use and may cause safety hazards or discomfort to the child during the change of the backrest. To overcome the above problems, it is necessary to provide a child carrier with an automatically reversible headrest.
[0014] 1, a child carrier 100 according to one embodiment includes a main frame 10, a seat frame 20, and a back frame 30. The seat frame 20 is mounted on the main frame 10. The back frame 30 is pivotally mounted on the seat frame 20.
[0015] The main frame 10 includes a pair of front leg rods 11, a pair of rear leg rods 12, a handle pressing rod 13, two armrests 15, and two auxiliary rods 16. The distal ends of the front leg rods 11 and the rear leg rods 12 are connected to casters (not numbered), respectively. The top ends of the front leg rods 11 and the rear leg rods 12 on the same side are pivotally connected to the front ends of the armrests 15 on the same side. In this embodiment, the handle pressing rod 13 is substantially inverted U-shaped and has two side rod portions 131 spaced apart in the left-right direction. The bottom ends of the two side rod portions 131 are pivotally connected to the two rear leg rods 12, respectively. The two auxiliary rods 16 are located inside the two side rod portions 131, respectively, and the extension direction of the auxiliary rods 16 is substantially the same as the extension direction of the side rod portions 131. The bottom end of the auxiliary rod 16 is pivotally connected to the bottom end of the side rod portion 131 and the rear end of the armrest 15 is pivotally connected to the top end of the auxiliary rod 16 .
[0016] As shown in FIG. 1, the seat frame 20 includes a pair of seat support rods 21 and a seat plate 22 slidably provided on the seat support rods 21. Specifically, the seat support rods 21 are substantially L-shaped, one end of the seat support rod 21 is pivotally connected to the front leg rod 11, and the other end of the seat support rod 21 is 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. Sleeve portions 222 are provided on both sides of the seat plate 22. The sleeve portions 222 are wound around the seat support rods 21 and can slide on the seat support rods 21 by being driven by the handle pressing rod 13.
[0017] As shown in FIGS. 2 to 4, the backrest frame 30 includes a backrest assembly 32, a headrest assembly 34, an elastic element 36 (see FIG. 5), a pair of connecting side elements 38, and a pair of connecting seat portions 39.
[0018] The backrest assembly 32 includes a backrest support element 322 and two canopy fixing bases 324 fixed on the backrest support element 322. The backrest support element 322 is substantially inverted U-shaped and has two side parts 321 spaced apart in the left-right direction and a top part 323 connecting the top parts of the two side parts 321. The distal end of each side part 321 is fixed on the connecting seat part 39 and can rotate forward or backward together with the connecting seat part 39 relative to the seat frame 20. The headrest assembly 34 is substantially plate-shaped, and the lower end of the headrest assembly 34 is rotatably connected to the top part 323 of the backrest support element 322 via a hinge.
[0019] 5 and 6, the elastic element 36 is provided between the headrest assembly 34 and the backrest assembly 32. More specifically, the elastic element 36 includes two torsion spring portions 362 wound around the top portion 323, and a pressing portion 364 connected between the two torsion spring portions 362 and having a substantially inverted U-shape. The pressing portion 364 abuts against the front of the headrest assembly 34, and the two torsion spring portions 362 receive a preload torsional force, so that the pressing portion 364 is biased backward toward the headrest assembly 34, and the headrest assembly 34 is maintained in a state substantially parallel to the backrest assembly 32.
[0020] 2 and 3, each canopy fixing base 324 is fixedly provided on the side portion 321, and the canopy fixing base 324 extends in a direction substantially perpendicular to the side portion 321. The backrest assembly 32 further includes a first canopy support strip 332 and a second canopy support strip 334. Referring to FIGS. 2 and 5, the first canopy support strip 332 is substantially inverted U-shaped, and both ends of the first canopy support strip 332 are pivotally connected to the outer sides of the tops of the two canopy fixing bases 324, respectively. The shape of the second canopy support strip 334 is similar to that of the first canopy support strip 332, and both ends of the second canopy support strip 334 are fixed to the sides of the two canopy fixing bases 324, respectively. A canopy (not shown) of the child carrier 100 can be covered between a first canopy support strip 332 and a second canopy support strip 334, and the expanded area of the canopy can be adjusted by pivoting the first canopy support strip 332.
[0021] 2 and 3, each of the connecting elements 38 is a hollow strip having a substantially slightly arcuate shape with a top end 382 and a bottom end 384. The top ends 382 of the two connecting elements 38 are pivotally connected to the left and right edges of the headrest assembly 34, respectively. Therefore, under the tension of the connecting elements 38, the headrest assembly 34 can overcome the elastic force of the elastic member 36 and rotate relative to the top part 323. The bottom end 384 is provided with an elongated sliding groove 386 axially extending in a direction substantially parallel to the side part 321. The canopy fixing base 324 is provided at the inside of the top part with a positioning pin 326 that can slide in the sliding groove 386. In one embodiment, the positioning pin 326 is cylindrical and both ends of the sliding groove 386 are arc-shaped, so that when the positioning pin 326 is positioned at any end of the sliding groove 386, the connecting side element 38 can rotate at a specific angle around the positioning pin 326 relative to the canopy fixing base 324.
[0022] The two connecting seats 39 are each pivotally connected to the seat frame 20. Specifically, referring to Fig. 3 and Fig. 4, the edge of the seat plate 22 extends vertically upward to form a pivot part 226, and the connecting seat part 39 is pivotally connected to the inner side of the pivot part 226 via a pin, so that the backrest support element 322 fixed to the connecting seat part 39 can rotate relative to the seat frame 20. Referring to Fig. 3 and Fig. 4, the backrest assembly 32 further includes an angle adjustment mechanism 35. The angle adjustment mechanism 35 is substantially inverted U-shaped, and an end of the angle adjustment mechanism 35 is movably connected to the connecting seat part 39. The angle adjustment mechanism 35 is configured to adjust and lock the inclination angle of the backrest frame 30 relative to the seat frame 20 so that the backrest frame 30 can be placed in a vertical position, a horizontal position, or any inclination position therebetween, thus providing the user with more application scenarios.
[0023] 2 and 4, the bottom of the connecting element 38 is further connected to the seat frame 20 via a connecting belt 40. Specifically, a hanging lug 388 is provided at the bottom end 384, a fixing hole 224 adjacent to the connecting seat 39 is provided at the seat plate 22, and a restricting hole 392 is provided at the connecting seat 39. One end of the connecting belt 40 is fixed to the hanging lug 388, and the other end of the connecting belt 40 is fixed to the fixing hole 224 through the restricting hole 392. In other embodiments, the connecting belt 40 can be directly connected between the hanging lug 388 and the fixing hole 224, in which case the restricting hole 392 can be omitted. The connecting belt 40 is a bendable flexible webbing made of materials such as nylon, cloth, rubber band, or metal chain. The connecting belt 40 has a loose state and a tightened state, which will be described in detail below in relation to different usage scenarios.
[0024] 5 to 7, when the backrest assembly 32 is in the vertical position, the backrest assembly 32 is substantially upright with respect to the seat frame 20. At this time, the positioning pin 326 is located at the end of the sliding groove 386 on the connecting seat 39 side, and the connecting belt 40 is in a loose state without tension. The headrest assembly 34 is substantially parallel to the backrest assembly 32 due to the biasing force of the elastic element 36, so that when a child sits on the child carrier 100, his or her body can lean against the backrest assembly 32 and the head can lean against the headrest assembly 34.
[0025] 8 and 9, when a child sitting on the child carrier 100 needs to lie down, the backrest assembly 32 can be rotated backward via the angle adjustment mechanism 35, and the connecting element 38 can be driven to rotate to a substantially horizontal position relative to the seat frame 20. During this process, the connecting belt 40 gradually changes from a loose state to a tight state, exerting a force on the connecting element 38, so that the positioning pin 326 starts to slide toward the end of the sliding groove 386 away from the connecting seat 39, thereby causing the connecting element 38 to slide downward relative to the canopy fixing base 324, and further driving the headrest assembly 34 to overcome the elastic force of the elastic element 36 and rotate forward relative to the top 323 of the backrest supporting element 322. When the positioning pin 326 is located at the end of the sliding groove 386 away from the connecting seat 39, the headrest assembly 34 rotates to a substantially vertical state relative to the backrest assembly 32, and the torsion spring portion 362 deforms and accumulates an elastic restoring force. In the state shown in Fig. 9, a child can lie on the backrest assembly 32 in a substantially horizontal position, while the substantially vertical headrest assembly 34 can create an effect similar to a blocking wall, thereby preventing the child from sliding headfirst or falling off the child carrier 100 and causing a danger.
[0026] Similarly, when it is necessary to rotate the backrest assembly 32 from the horizontal position to the vertical position again, the backrest assembly 32 can be rotated forward by releasing the angle adjustment mechanism 35. The connecting belt 40 gradually changes from a tightened state to a relaxed state and stops pulling the connecting side element 38. The headrest assembly 34 slides the connecting side element 38 upward due to the elastic restoring force of the elastic member 36, and finally the headrest assembly 34 returns to a state approximately parallel to the backrest assembly 32.
[0027] In summary, through the design of the connecting structure among the backrest assembly 32, the headrest assembly 34, and the connecting side element 38, which cooperates with the connecting belt 40 and the elastic element 36, when the backrest assembly 32 rotates, the headrest assembly 34 can rotate together with the backrest assembly 32. In this way, the user only needs to operate the backrest assembly 32 to move the headrest assembly 34 to its appropriate position, which improves the convenience and safety of use.
[0028] 9 and 10, in this embodiment, the seat plate 22 can slide relative to the seat support rod 21, so that when the handle pushing rod 13 rotates relative to the main frame 10, the seat plate 22 can move from a first position to a second position relative to the main frame 10, which moves the child seated on the child carrier 100, that is, the center of gravity of the entire child carrier 100 changes. In this way, the user can adjust the center of gravity of the child carrier 100 as needed by rotating the handle pushing rod 13, so that the center of gravity of the child carrier 100 can move backward after changing direction, and pushing is more labor-saving. Compared with the conventional child carrier in which the backrest supporting element, the canopy fixing base, etc. are directly fixed to the main frame, the backrest supporting element 322 and the canopy fixing base 324 in this embodiment are directly provided on the seat frame 20, so that they do not affect the forward and backward sliding of the seat plate 22.
[0029] Although each embodiment has been described one by one, it should be understood that each embodiment is not separate. Those skilled in the art can clearly understand by reading the disclosure of this application that the technical features included in each embodiment can be arbitrarily combined between each embodiment as long as they are not inconsistent with each other. Of course, the technical features listed in the same embodiment can also be arbitrarily combined as long as they do not conflict with each other.
[0030] The above description is merely a specific embodiment of the present application, and is not intended to limit the scope of protection of the present application. Any variations or replacements that are easily conceived by those skilled in the art within the technical scope disclosed in the present application shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the attached claims.
Claims
1. A child carrier, The mainframe and A seat frame provided on the main frame; The back frame and Including, The backrest frame is a backrest assembly rotatable between a vertical position and a horizontal position relative to the seat frame; a headrest assembly pivotally connected to an upper portion of the backrest assembly; a connecting element slidably connected to the backrest assembly, the top of the connecting element being pivotally connected to the headrest assembly and the bottom of the connecting element being connected to the seat frame via a connecting belt; a resilient element disposed between the backrest assembly and the headrest assembly; Including child carriers.
2. 2. The child carrier of claim 1, wherein the backrest assembly includes a backrest support element and a canopy fixing base fixed on the backrest support element, the bottom of the backrest support element being pivotally connected to the seat frame, and the connecting side element being slidably connected to an end of the canopy fixing base.
3. 3. The child carrier according to claim 2, wherein a sliding groove is provided in the connecting element, and a positioning pin slidable within the sliding groove is provided on the top of the canopy fixing base.
4. The child carrier according to claim 3 , wherein the connecting element can rotate relative to the canopy fixing base around the positioning pin when the positioning pin is located at either end of the sliding groove.
5. The child carrier of claim 2 , 3 or 4 , wherein the backrest assembly further includes an angle adjustment mechanism configured to adjust the angle of inclination of the backrest support element relative to the seat frame.
6. 6. The child carrier of claim 2, wherein the backrest assembly further includes a first canopy support strip and a second canopy support strip, both ends of the first canopy support strip being pivotally connected to the two canopy fixing bases, and both ends of the second canopy support strip being fixed to the two canopy fixing bases, respectively.
7. A child carrier as described in any one of claims 1 to 6, wherein the connecting side element is provided with a hanging lug, the seat frame is provided with a fixing hole, the backrest frame further includes a connection base pivotally connected to the seat frame, the connection base is provided with a restricting hole, one end of the connection belt is fixed to the hanging lug, and the other end of the connection belt extends through the restricting hole and is fixed to the fixing hole.
8. 8. The child carrier of claim 1, wherein the connecting belt is a flexible webbing, the connecting belt being in a loose state when the backrest assembly is in the vertical position, and the connecting belt being in a tightened state when the backrest assembly is in the horizontal position.
9. 9. The child carrier of claim 1, wherein the resilient element is a torsion spring configured to maintain the headrest assembly parallel to the backrest assembly.
10. 10. The child carrier of claim 9, wherein the elastic element includes a torsion spring portion fixed to a top of the backrest assembly and a pressing portion connected to the torsion spring portion and abutting a front portion of the headrest assembly.
11. 11. The child carrier of claim 1, wherein the headrest assembly is in the form of a plate, and the tops of the two connecting elements are pivotally connected to the left and right sides of the headrest assembly.
12. 12. The child carrier of any one of claims 1 to 11, wherein the main frame includes a handle push rod, and bottom ends of the seat frame and the connecting element are pivotally connected to the handle push rod.
13. 13. The child carrier of claim 12, wherein the seat frame includes a seat support rod and a seat plate, the seat plate being driven by the handle pressure rod to slide on the seat support rod.