Child carrier

The child carrier addresses the complexity and cost issues of existing double-strollers by using a frame with a pivotable and lockable support plate mechanism, enhancing usability and reducing weight and cost.

JP2026067836APending Publication Date: 2026-04-21BAMBINO PREZIOSO SWITZERLAND AG
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
BAMBINO PREZIOSO SWITZERLAND AG
Filing Date
2025-10-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing double-strollers with detachable seats have complex structures and high costs, making them less optimal for families with twins or children of similar ages.

Method used

A child carrier with a frame and a support plate that includes engaging members and a locking mechanism, allowing the support plate to be detachably engaged with the frame, pivotable between use and storage positions, and secured with a locking member to prevent detachment during use.

Benefits of technology

The solution provides a simple, cost-effective, and user-friendly double-stroller that allows easy attachment and detachment of the support plate, reducing weight and complexity while maintaining structural integrity.

✦ Generated by Eureka AI based on patent content.

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Abstract

We offer a simple and easy-to-use double stroller. [Solution] The child carrier 1 includes a frame 100 including an engaging member and a support plate 150 including an engaging portion. The engaging member engages with the engaging portion, allowing the support plate to be detachably engaged with the frame. The engaging member includes a locking member 142 and a positioning member 143. The engaging portion includes a housing 153 for the locking member and a housing 152 for the positioning member. The positioning member pivotally engages with the housing for the positioning member, allowing the support plate to pivot between a use position and a storage position relative to the frame. When the support plate is in the use position, the locking member engages with the housing for the locking member, preventing the positioning member from detaching from the housing. When the support plate is in the storage position, the locking member detaches from the housing for the locking member, allowing the positioning member to detach from the housing.
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Description

Technical Field

[0004] , , ,

[0001] This disclosure relates to a child carrier.

Background Art

[0002] Cross - reference to Related Applications This disclosure claims priority to Chinese Application No. 202411404831.5 filed on October 9, 2024 and Chinese Application No. 202411506120.9 filed on October 25, 2024, the contents of which are hereby incorporated by reference in their entirety.

[0003] A double - stroller is a stroller designed to carry two children simultaneously. Such a stroller is optimal for families with twins or two children of similar ages. Many strollers with detachable seats have complex structures and high costs. Therefore, there is a need to provide a double - stroller with a simple structure and easy to use.

Summary of the Invention

[0004] This disclosure provides a child carrier comprising a frame including at least two engaging members and a support plate including at least two engaging portions, wherein the engaging members each engage with the engaging portions so that the support plate can be detachably engaged with the frame, wherein the at least two engaging members include a locking member and a positioning member, and the at least two engaging portions include a housing for the locking member and a housing for the positioning member, wherein the positioning member is pivotably engaged with the housing for the positioning member so that the support plate can pivot relative to the frame between a use position and a storage position, and the locking member is engaged with the housing for the locking member so that when the support plate is in the use position, the positioning member is prevented from disengaging from the housing for the positioning member, and the locking member disengages from the housing for the locking member so that when the support plate is in the storage position, the positioning member is detachable from the housing for the positioning member.

[0005] According to one embodiment, the housing for the positioning member has a positioning groove for engaging with the positioning member, the housing for the locking member has a guide groove for engaging with the locking member, the opening direction of the positioning groove and the opening direction of the guide groove are different, and the housing for the locking member further has a locking assembly for locking the locking member.

[0006] According to one embodiment, the housing portion for the positioning member is provided perpendicular to the supporting portion of the support plate, the opening direction of the positioning groove is parallel to the supporting portion, and the housing portion for the locking member is provided perpendicular to the supporting portion of the support plate, the opening direction of the guide groove is away from the supporting portion.

[0007] According to one embodiment, the locking member has an engaging projection, the housing for the locking member includes a first side wall and a second side wall spaced apart, the guide groove is provided in the first side wall, and the second side wall has an engaging hole, where the locking assembly is the engaging hole, and the second side wall is operablely curved toward the first side wall so that the engaging hole can lock the engaging projection when the locking member is inserted into the guide groove.

[0008] According to one embodiment, the housing portion for the positioning member has a double-layer structure, the positioning groove is provided in the layer closest to the frame, and the positioning member includes a connecting segment fixed to the frame and a head portion adjacent to the connecting segment, the diameter of which is larger than that of the connecting segment and can be positioned between the double layers of the double-layer structure by passing through the positioning groove.

[0009] According to one embodiment, the locking member includes a connecting segment fixed to the frame and a locking portion adjacent to the connecting segment, wherein the engaging projection is provided protruding from the tip side of the locking portion away from the frame, and when the locking portion passes through the engaging hole, the engaging projection prevents the second side wall from detaching from the locking portion.

[0010] According to one embodiment, the engaging projection protrudes from the locking portion toward the ground along the vertical direction of the frame, and the locking portion accommodates the second side wall by including an engaging groove adjacent to the engaging projection.

[0011] According to one embodiment, the housing portion for the positioning member, the housing portion for the locking member, and the supporting portion are an integrated member, and the end face on the tip side of the locking portion is an inclined surface.

[0012] According to one embodiment, the frame further includes a support rod, which is positioned between the at least two engaging members and supports the support plate when the support plate engages with the frame, and / or the child carrier further includes a pair of fixed seats, each of which is provided protruding from the frame, the locking member and the positioning member are provided spaced apart on each of the fixed seats, the end of the support plate has an inwardly recessed housing, and the housing abuts against the upper surface of the fixed seat to provide support to the support plate when the support plate engages with the frame.

[0013] The Disclosure further provides a child carrier comprising a frame including at least two engaging members and a support plate including at least two engaging portions, wherein the engaging members each engage with the engaging portions so that the support plate can be detachably engaged with the frame, wherein the at least two engaging members include a locking member, the at least two engaging portions include a housing for the locking member, the locking member has an engaging projection, the housing for the locking member includes a spaced-apart first side wall and a second side wall, the first side wall is provided with a guide groove, and the second side wall is provided with an engaging hole, wherein the second side wall is operablely curved so that when the locking member is inserted into the guide groove, the engaging hole locks with the engaging projection.

[0014] This disclosure further provides a child carrier comprising a frame, a support plate, and an engaging member, wherein the support plate is detachably connected to the frame and can move between a use position and a storage position, the engaging member is provided between the frame and the support plate, the engaging member comprises a locking member and a positioning member, the support plate has a locking assembly and a housing for the positioning member, the locking assembly engages with the locking member in a lockable manner, the housing for the positioning member cooperates with the positioning member, the locking member is pivotable relative to the frame so that the support plate can pivot relative to the frame between a use position and a storage position, the positioning member engages with the housing for the positioning member so that when the support plate is in the use position, the support plate can be prevented from detaching from the frame, and the positioning member detaches from the housing for the positioning member so that when the support plate is away from the use position, the support plate can be detached from the frame.

[0015] According to one embodiment, the locking member is installed as a rotating seat, the rotating seat is pivotably connected to the frame via a connecting portion, the support plate pivots relative to the frame via the rotating seat, the frame has a positioning portion, and the positioning portion limits the rotation angle of the rotating seat so as to limit the pivot position of the support plate relative to the frame.

[0016] According to one embodiment, the positioning portion includes a plurality of positioning protrusions, a plurality of positioning recesses are formed between the plurality of positioning protrusions, and the rotating seat includes at least one projection, the projection fitting into one of the plurality of positioning recesses so as to limit the rotating seat to one of a plurality of rotational positions.

[0017] According to one embodiment, the connecting portion includes a head portion and a connecting rod, one end of which is connected to the fixed seat and the other end of which is connected to the head portion, and the connecting portion further includes an elastic member disposed between the rotating seat and the head portion, which applies a pressing force to the rotating seat toward the positioning portion.

[0018] According to one embodiment, the support plate further includes a housing for a locking member for housing the rotating seat, the housing for the locking member having two parallel engaging blocks, the rotating seat having a first wall portion and a second wall portion parallel to each other along the rotation axis of the rotating seat, two partition plates provided between the first wall portion and the second wall portion, the first wall portion and the second wall portion together with the partition plates forming two recesses, the two recesses distributed along the circumferential direction of the rotating seat and facing each other along the radial direction of the rotating seat, and when the support plate engages with the frame, the two engaging blocks are each inserted into the two recesses and engage with the partition plates, thereby allowing the support plate to rotate the rotating seat.

[0019] According to one embodiment, along the circumferential direction of the rotating seat, an engagement groove and a receiving groove are provided between the two partition plates, facing each other, the lock assembly engages with the engagement groove, the receiving groove is used to receive a protrusion of the housing for the lock member, the protrusion is used to position the insertion position between the rotating seat and the support plate and to reinforce the engagement between the rotating seat and the support plate.

[0020] In one embodiment, the engagement groove is open toward the support plate and has a flange on the side of the engagement groove toward the lock assembly, preventing the lock assembly from detaching from the rotating seat.

[0021] According to one embodiment, the housing for the positioning member has a retaining portion that prevents the positioning member from detaching from the housing for the positioning member when the support plate is in the usage position.

Brief Description of the Drawings

[0022] [Figure 1] A front perspective view of a child carrier according to an embodiment of the present disclosure. [Figure 2] A rear perspective view of a child carrier according to an embodiment of the present disclosure. [Figure 3] A rear perspective view of a child carrier according to an embodiment of the present disclosure. [Figure 4] Part A of FIG. 3. [Figure 5] A perspective view of a lock member according to an embodiment of the present disclosure. [Figure 6] A perspective view of a positioning member according to an embodiment of the present disclosure. [Figure 7] A perspective view of a support plate according to an embodiment of the present disclosure. [Figure 8] A perspective view of the other side of a support plate according to an embodiment of the present disclosure. [Figure 9] A bottom perspective view of a child carrier according to an embodiment of the present disclosure. [Figure 10] Part B of FIG. 9. [Figure 11] A bottom perspective view of a child carrier according to an embodiment of the present disclosure. [Figure 12] Part C of FIG. 11. [Figure 13] A rear perspective view of a child carrier according to an embodiment of the present disclosure. [Figure 14] A rear perspective view of a child carrier according to another embodiment of the present disclosure. [Figure 15] A rear perspective view of a child carrier according to another embodiment of the present disclosure. [Figure 16A] A front perspective view of a child carrier according to another embodiment of the present disclosure. [Figure 16B] A detailed view of part D of FIG. 16A. [Figure 17A] An enlarged view of part D of FIG. 16A excluding the rotating seat. [Figure 17B]These are side views of the rotating seat. [Figure 17C] These are side views of the rotating seat. [Figure 18] This is a cross-sectional view along section line II in Figure 17A. [Figure 19] This is a perspective view of a support plate according to another embodiment of the present disclosure. [Figure 20A] This is a front perspective view of a child carrier according to another embodiment of the present disclosure. [Figure 20B] This is a detailed view of section E of Figure 20A. [Figure 21] This is a cross-sectional view of portion E along the cross-sectional line II-II in Figure 20B. [Figure 22] This is a cross-sectional view of portion E along the cross-sectional line II-II in Figure 20B. [Modes for carrying out the invention]

[0023] Although the present invention is illustrated and described herein with reference to specific embodiments, the present invention should not be limited to the illustrated details. Rather, various modifications to these details can be made within the scope of equivalent embodiments of the claims without departing from the present invention.

[0024] The descriptions of directions such as "front," "back," "up," and "down" in this text are merely for the purpose of facilitating understanding, and the present invention is not limited to these directions. While the present application has been described by listing typical embodiments with reference to actual situations, the terminology used is not limiting, but rather descriptive and illustrative.

[0025] Figure 1 is a front perspective view of a child carrier 1 according to one embodiment of the present disclosure, where the direction of travel X is the direction in which the caregiver faces when pushing the child carrier 1. The lateral direction Y is perpendicular to the direction of travel X and parallel to the horizontal plane, and the vertical direction Z is perpendicular to the horizontal plane. The direction in the same direction as the direction of travel X is considered the front, and the opposite direction is considered the rear. In this disclosure, the child carrier 1 is a stroller. However, the child carrier 1 of this application may also be a pet cart, shopping cart, pushcart, etc.

[0026] Child carrier 1 includes a frame 100 and wheels 200 provided below the frame 100. The frame 100 includes a front leg frame 110 located forward along the direction of travel X of the child carrier 1, a rear leg frame 120 located behind it, and a handlebar 130 provided for easy pushing by a caregiver. The front leg frame 110, the rear leg frame 120, and the handlebar 130 are connected to each other. In this embodiment, a first connecting rod 170 is provided between the handlebar 130 and the rear leg frame 120, and a second connecting rod 180 is provided between the front leg frame 110 and the rear leg frame 120. The first connecting rod 170 and the second connecting rod 180 are for holding the frame 100 in an unfolded state. Unless otherwise specified, the frame 100 is in an unfolded state. In this embodiment, the first connecting rod 170 extends substantially vertically Z, and the second connecting rod 180 extends substantially in the direction of travel X. According to this embodiment, the rear leg frame 120 has a pair of fixed seats 140, each of which protrudes inward from the rear leg frame 120. The fixed seats 140 are formed by or attached to the rear leg frame 120 and used to fix the first connecting rod 170 and the second connecting rod 180.

[0027] In this embodiment, the child carrier 1 has a support plate 150 provided on a fixed seat 140, and the support plate 150 is for supporting items or for a child to ride on. The support plate 150 is provided between the fixed seats 140 on both sides of the frame 100 and extends in the lateral direction Y. According to this disclosure, the support plate 150 is detachably engaged with the frame 100. The specific form of the support plate 150 and the method of cooperation with the frame 100 will be described later with reference to Figures 2 to 13.

[0028] In this embodiment, the support plate 150 is provided as a seat for a child to sit on. In front of the support plate 150, along the direction of travel X, the frame 100 may be provided with a seat (not shown) for a child to sit on. The support plate 150 is located behind this seat and is intended for another child to sit on simultaneously. This allows the child carrier 1 to carry two children at the same time. Optionally, footrests 160 for a child to rest their feet on are further provided between the rear leg frames 120 on both sides of the frame 100.

[0029] Figure 2 is a rear perspective view of a child carrier 1 according to one embodiment of the present disclosure.

[0030] According to this embodiment, the fixed seat 140 is provided as an independent member and is fixed to the rear leg frame 120 of the frame 100 via a connecting member 141, such as a rivet. The first connecting rod 170 and the second connecting rod 180 are pivotably connected to the fixed seat 140 via a connecting member 141, such as a rivet.

[0031] In this embodiment, the support plate 150 is substantially flat, and both ends in the lateral direction Y are engaged with the fixed seat 140. The upper surface of the support plate 150 is a carrying portion 151, which is for carrying an article or a child. When a child sits on the carrying portion 151, the child is facing the rear of the frame 100, i.e., in the opposite direction to the direction of travel X.

[0032] Figure 3 is a rear perspective view of a child carrier 1 excluding the support plate 150 according to one embodiment of the present disclosure. Figure 4 is an enlarged view of part A of Figure 3. Referring to Figures 3 and 4, both sides of the rear leg frame 120 each include a fixed seat 140, which supports the support plate 150 by projecting inward from the rear leg frame 120. Each fixed seat 140 includes at least two engaging members 142, 143 for engaging with the support plate 150 (see Figure 2). The at least two engaging members 142, 143 include a locking member 142 and a positioning member 143, which are spaced apart from each other along the direction of travel X and project inward from the fixed seat 140 along the lateral direction Y. According to one embodiment, the locking member 142 and the positioning member 143 are located on different planes along the vertical direction Z. In other embodiments, the locking member 142 and the positioning member 143 may be located on the same plane along the vertical direction Z.

[0033] Selectively, the fixed seat 140 may be further provided with a support rod 144 extending laterally in the Y direction and for further supporting the support plate 150 from below. In Figure 2, it is located below the support plate 150 and is shielded by the carrying portion 151. The support rod 144 is fastened to the fixed seat 140 or other members of the frame 100, such as the rear leg frame 120, by means of riveting, inserting, locking, welding, etc. According to this embodiment, the support rod 144 is provided in a U shape and fits into the corresponding housing portion of the support plate 150. According to this embodiment, the U-shaped bottom of the support rod 144 is located between the locking member 142 and the positioning member 143.

[0034] Refer simultaneously to the perspective view of the locking member 142 in Figure 5 and the perspective view of the positioning member 143 in Figure 6.

[0035] In this embodiment, the positioning member 143 includes a connecting segment 143-1 of a fixed seat 140 fixed to the frame 100, and a head portion 143-2 adjacent to the connecting segment 143-1, the diameter of which is larger than that of the connecting segment 143-1. When the positioning member 143 is fixed to the fixed seat 140, an annular groove structure is formed between the head portion 143-2 and the fixed seat 140, thereby engaging with the positioning groove 154 of the support plate 150 (see Figure 12). The connecting segment 143-1 is located at the bottom of the groove structure.

[0036] The positioning member 143 further includes a recessed portion 143-3, and the positioning member 143 may be connected to the fixed seat 140 via a connecting member (not shown), such as a screw provided in the recessed portion 143-3. The positioning member 143 may be formed of a hard material such as metal or plastic.

[0037] The positioning member 143 is used to position the support plate 150 and provide support force; for specific details, please refer to Figures 9 to 13 below.

[0038] According to this embodiment, the locking member 142 includes a connecting segment 142-1 of a fixed seat 140 fixed to the frame 100, and a locking portion 142-2 adjacent to the connecting segment 142-1. For example, the connecting segment 142-1 is cylindrical, and its diameter is smaller than that of the locking portion 142-2. Selectively, a positioning projection 142-6 is provided on the periphery of the connecting segment 142-1, and the positioning projection 142-6 can engage with a positioning portion 145 provided on the fixed seat 140 to prevent rotation of the locking member 142.

[0039] The locking member 142 includes a recessed portion 142-3, and the locking member 142 may be connected to the fixed seat 140 via a connecting member (not shown) provided in the recessed portion 142-3, for example. The locking member 142 may be formed of a hard material such as metal or plastic. The end face of the locking portion 142-2 on the side away from the fixed seat 140 is an inclined surface, which guides the locking portion 142-2 to be inserted into the engagement hole 155 described later, and an engagement projection 142-4 is provided at the lower end of the inclined surface (i.e., the side away from the support portion 151). Exemplarily, the engagement projection 142-4 is a tongue that projects outward along the radial direction of the locking portion 142-2, and the locking portion 142-2 further includes an engagement groove 142-5 adjacent to the engagement projection 142-4. The locking portion 142-2 is for locking the support plate 150.

[0040] Figures 7 and 8 are perspective views of the support plate 150 at different angles according to one embodiment of the present disclosure.

[0041] According to this embodiment, both sides of the support plate 150 along the lateral direction Y each include at least two engaging portions 152, 153. The at least two engaging portions 152, 153 include a locking member housing portion 153 for housing a locking member 142 (see Figure 4) and a positioning member housing portion 152 for housing a positioning member 143 (see Figure 4). Selectively, in some embodiments, the distance between the locking member housing portion 153 and the positioning member housing portion 152 may be at least half the width W of the support plate 150, thereby providing stable support force, but the present invention is not limited thereto.

[0042] In this embodiment, the positioning member housing 152 is provided on the tip side of the support plate 150 and includes a positioning groove 154. Referring to Figure 8, the positioning member housing 152 extends from the support plate 150 along the forward direction X. The positioning member housing 152 has a double-layer structure, and the positioning groove 154 is provided on the outer wall (outer layer). In this embodiment, the positioning groove 154 is a long groove extending in the forward direction X, and the opening of the long groove faces forward. In some embodiments, the positioning groove 154 may be a V-shaped groove whose width gradually decreases from the opening to the bottom, thereby guiding the insertion of the positioning member 143. The inner wall (inner layer) of the positioning member housing 152 is substantially flat and serves to shield the positioning member 143.

[0043] In this embodiment, the locking member housing 153 is provided on the side wall perpendicular to the supporting portion 151 of the support plate 150. The locking member housing 153 has a double-layer structure, namely a first side wall 156-1 close to the frame 100 and a second side wall 156-2 away from the frame 100. The second side wall 156-2 is a tongue-shaped piece that protrudes downward, and by manually manipulating the lower end of the second side wall 156-2, the caregiver can make the second side wall 156-2 swing toward the first side wall 156-1.

[0044] In this embodiment, the first side wall 156-1 is provided with a guide groove 157 that is open and separated from the supporting portion 151 of the support plate 150, and the second side wall 156-2 is provided with an engagement hole 155. Optionally, the guide groove 157 has its widest width at the opening and gradually decreases in width from the opening to the bottom, thereby guiding the locking member 142 to engage with the locking member housing portion 153. Optionally, the engagement hole 155 may be circular or elliptical. The guide groove 157 and the engagement hole 155 are substantially corresponding in the width direction. Optionally, the housing portion 159 recessed inward of the first side wall 156-1 is configured to engage with the fixed seat 140; for specific installation details, refer to Figure 9 below.

[0045] Figure 9 is a bottom perspective view of a child carrier 1 according to one embodiment of the present disclosure. Figure 10 is a partially enlarged view of part B of Figure 9.

[0046] In Figures 9 and 10, the support plate 150 engages with the fixed seat 140. The locking member 142 engages with the housing 153 for the locking member, and the positioning member 143 engages with the housing 152 for the positioning member. The locking member 142 and the positioning member 143 fix the position of the support plate 150 and provide it with additional support force. The two fixed seats 140 on the left and right are housed in the housings 159 shown in Figures 7 and 8, respectively, and by contacting the carrying portion 151, they can provide the support plate 150 with an upward support force. The support plate 150 is pivotable about the connecting line between the pair of positioning members 143, thereby allowing it to pivot between a usage position (see Figure 1) and a storage position (not shown). Referring to Figure 1, when the support plate 150 is in the usage position, the carrying portion 151 is approximately parallel to the horizontal plane to make it easy for children to climb on. When the support plate 150 rotates counterclockwise from its usage position to a storage position that forms a predetermined angle with the horizontal plane, the length of the support plate 150 in the direction of travel X is reduced, thereby preventing interference from the support plate 150 when a child stands on the footrest 160. Exemplarily, the storage position may be in a direction that forms an angle of approximately 90 degrees with respect to the horizontal plane, but is not limited thereto.

[0047] Figure 10 shows an enlarged, detailed view of the housing section 152 for the positioning member and the housing section 153 for the locking member. In this embodiment, the housing section 152 for the positioning member protrudes forward from the end of the support section 151, and its double-layer structure is integrally formed from the side wall of the support plate 150.

[0048] The lock member housing 153 corresponds to the lock member 142, and the lock member 142-2 engages with the lock member housing 153 by having an engaging projection 142-4 on its tip side away from the fixed seat 140. When the lock member 142 engages with the guide groove 157 of the first side wall 156-1, the caregiver can press the second side wall 156-2 toward the lock member 142-2, thereby preventing the second side wall 156-2 from detaching from the lock member 142-2 by the lock member 142-2 passing through the engagement hole 155 and the engaging projection 142-4 engaging with the edge of the engagement hole 155. In one embodiment, the engagement hole 155 is an elliptical or racetrack-shaped elongated hole, thereby providing space for drilling the lock member 142. In another embodiment, the engagement hole 155 may be a circular hole.

[0049] Figure 11 is a bottom perspective view of a child carrier 1 according to one embodiment of the present disclosure. Figure 12 is a partially enlarged view of part C of Figure 11. Figures 11 and 12 show a cross-section of a portion of the support plate 150 between the double-layer structure of the positioning member housing 152 and the locking member housing 153, thereby allowing the outer layer structure of the locking member 142 and positioning member 143 housed in the locking member housing 153 and the positioning member housing 152 to be viewed from the inside out.

[0050] In this embodiment, the connecting segment 143-1 of the positioning member 143 engages with the positioning hole 154 of the first side wall 156-1 of the positioning member housing 152, and the head portion 143-2 engages with the positioning member housing 152 by its large diameter, thereby preventing the support plate 150 from sliding along the lateral direction Y.

[0051] In this embodiment, the lock member housing 153 shows a first side wall 156-1 and a guide groove 157. The guide groove 157 has an opening shape and is intended to guide the connecting segment 142-1 of the lock member 142 so that it can be inserted and to support the connecting segment 142-1. The lock member 142 is provided with a positioning projection 142-6 between the connecting segment 142-1 and the locking portion 142-2 on the lower side of the connecting segment 142-1, thereby preventing the lock member 142 from rotating relative to the fixed seat 140 and providing additional support to the connecting segment 142-1 and the locking portion 142-2.

[0052] In this embodiment, the support rod 144 is inserted behind the second side wall 156-2 from the through-hole 158 between the locking member housing 153 and the positioning member housing 152, thereby providing additional support force to the support plate 150.

[0053] Figure 13 is a rear perspective view of a child carrier 1 according to one embodiment of the present disclosure, where the support plate 150 is separated from the frame 100. The process of attaching and detaching the support plate 150 will be described based on Figure 13.

[0054] During the installation process, first, the support plate 150 is moved to the fixed seat 140 while tilting it downwards, and the positioning member 143 is slid into the positioning groove 154 of the positioning member housing 152. The positioning member 143 is continued to slide until it contacts the bottom of the positioning groove 154, and then the support plate 150 is pivoted along the clockwise direction D1, with the connecting line between the two positioning members 143 as the pivot axis. During the pivoting process, the connecting segment 142-1 of the locking part 142-2 is inserted into the guide groove 157 of the second side wall 156-2 of the locking member housing 153. Subsequently, the caregiver presses the lower end of the second side wall 156-2 outwards, displacing the second side wall 156-2 toward the first side wall 156-1, and further causing the locking part 142-2 of the locking member 142 to pass through the engagement hole 155 of the second side wall 156-2.

[0055] As the locking portion 142-2 engages with the engagement hole 155, the connecting segment 142-1 of the locking member 142 gradually enters the open guide groove 157 and finally abuts against the upper part of the guide groove 157, and the engaging projection 142-4 of the locking portion 142-2 engages with the positioning hole 154 of the first side wall 156-1, thereby locking the locking portion 142-2 into the housing portion 153 for the locking member. Simultaneously with the locking portion 142-2 engaging with the engagement hole 155, the through portion 158 of the support plate 150 abuts against the support rod 144, and the housing portion 159 abuts against the upper surface of the fixed seat 140, thereby further supporting the support plate 150 upward.

[0056] At this time, the support plate 150 engages with the frame 100 and is positioned in place, and the carrying portion 151 of the support plate 150 becomes nearly parallel to the ground, allowing a child to ride on it.

[0057] In the process of removing the support plate 150, the caregiver first swings the lower end of the second side wall 156-2 from the outside to the inside from below the support plate 150 to disengage the engagement hole 155 from the engagement projection 142-4 of the locking member 142. Then, the caregiver pivots the support plate 150 in a counterclockwise direction D2 around the connecting line between the positioning members 143, and pivots the support plate 150 until it is disengaged from the release locking member 142 and the support rod 144. After that, the caregiver pulls the support plate 150 away from the positioning member 143 to detach the support plate 150.

[0058] This disclosure provides a support plate 150, for example, a seat plate that can be quickly removed and attached, is extremely convenient to use, and can form support for an item or a child with just a single seat plate, has a high effect in making the frame 100 compact and reducing weight, has an extremely simple structure, and provides a double stroller that reduces costs for the customer.

[0059] The support plate 150 can be easily engaged by the engaging members 142 and 143, and after the support plate 150 is unlocked from the engaging members 142 and 143, it can be quickly removed simply by rotating it. The support plate 150 allows for quick removal and installation, making it extremely convenient to use.

[0060] Figures 14 to 22 show child carrier 1a of other embodiments of the present disclosure. To avoid duplication, specific configurations similar to those of the embodiments in Figures 1 to 23 can be found in the description above.

[0061] The support plate 150a is in the use position in Figure 14 and in the storage position in Figure 15. The support plate 150a includes a housing portion 153a for a locking member (see Figure 13) located forward along the X direction and a housing portion 152a for a positioning member located rearward. The housing portion 153a for the locking member is for housing a locking member 142a (see Figure 16) fixed to the frame 100a or the fixing seat 140a of the frame 100a, and the housing portion 152a for the positioning member is for housing a positioning member 143a. The positioning member 143a may be fixed to the frame 100a or the fixing seat 140a of the frame 100a as an independent member, or it may be integrally molded as shown in this embodiment.

[0062] The support plate 150a is pivotable relative to the frame 100a about a line connecting a pair of locking members 142a, thereby allowing it to pivot and stay between a usage position and a storage position, or to stay in a position other than the usage position and the storage position. Referring to Figure 14, when the support plate 150a is in the usage position, it may be approximately parallel to the horizontal plane to allow a child to easily stand on it, and it may rotate counterclockwise in the direction D2 from the usage position to a storage position that forms a predetermined angle with the horizontal plane, thereby reducing the length of the support plate 150a in the direction of travel X, thereby avoiding interference from the support plate 150a when a child stands on the footrest 160a. Exemplarily, the storage position may be in a direction that forms an angle of about 90 degrees with respect to the horizontal plane, but is not limited thereto.

[0063] The specific form of the support plate 150a and the method of cooperation with the frame 100a in this embodiment will be described later based on Figures 16 to 24.

[0064] Figure 16A is a front perspective view of the child carrier 1a excluding the support plate 150a, Figure 17A is an enlarged view of part D of Figure 16 excluding the rotating seat 142a, Figures 17B and 17C are side views of the rotating seat 142a, and Figure 18 is a cross-sectional view along the section line II in Figure 17A. Since the two fixed seats 140a located on the left and right sides of the frame 100a are mirror-symmetric, the right fixed seat 140a will be used as an example for the following explanation.

[0065] The fixed seat 140a of the frame 100a includes a locking member 142a, which is provided as a rotatable seat 142a that is rotatable relative to the fixed seat 140a. The rotatable seat 142a has a first wall portion 142-1a and a second wall portion 142-2a that are parallel to each other along the rotation axis R of the rotatable seat 142a, and two partition plates 142-6a are provided between the first wall portion 142-1a and the second wall portion 142-2a, with the first wall portion 142-1a and the second wall portion 142-2a each connected to the ends of the partition plate 142-6a. The first wall portion 142-1a and the second wall portion 142-2a, together with the partition plate 142-6a, form two recesses 142-3a for engaging with the support plate 150a. The two recesses 142-3a are distributed along the circumferential direction of the rotating seat 142a and face each other along the radial direction of the rotating seat 142a. The recesses 142-3a are for housing the engaging block 156a of the locking member housing 153a, and the locking member housing 153a is located at one end adjacent to the rear wall 159a of the side wall 158a of the support plate 150a (see Figure 19). Exemplarily, the first wall portion 142-1a and the second wall portion 142-2a may be circular sheet bodies, and the recess 142-3a may be a fan-shaped groove.

[0066] A cylindrical connecting portion 144a is provided protruding from the side of the fixed seat 140a, and the rotating seat 142a is pivotally connected to the fixed seat 140a by the connecting portion 144a. The connecting portion 144a includes a head portion 144-1a and a connecting rod 144-2a, the connecting rod 144-2a extending from the fixed seat 140a and partially inserted into the housing portion 142-4a of the rotating seat 142a, the head portion 144-1a being connected to the connecting rod 144-2a and located in the housing portion 142-4a, and the diameter of the head portion 144-1a being approximately the same as that of the housing portion 142-4a and larger than that of the connecting rod 144-2a, so that the rotating seat 142a can slide on the head portion 144-1a along the rotational direction R.

[0067] Referring to Figure 17A, the fixed seat 140a further has a positioning portion 145a, which limits the rotation angle of the rotating seat 142a. According to this embodiment, the positioning portion 145a includes a plurality of positioning protrusions 145-1a that are continuous in the circumferential direction around the connecting rod 144-2a, and the shape of each positioning protrusion 145-1a is a raised portion having inclined surfaces on both sides, and for every two positioning protrusions 145-1a, a positioning recess 145-2a is formed recessed between their opposing inclined surfaces. Referring to Figure 17B, the outer surface of the second wall portion 142-2a of the rotating seat 142a includes at least one projection 142-8a, for example, four projections 142-8a, and the shape of the projections 142-8a is provided to be able to fit into the positioning recess 145-2a. When the projection 142-8a is fitted into one of the multiple sets of positioning recesses 145-2a, the rotational movement of the rotating seat 142a can be limited.

[0068] The connecting portion 144a further includes an elastic member 144-3a. The elastic member 144-3a is provided between the rotating seat 142a and the head portion 144-1a and is fixed to at least the head portion 144-1a. According to this embodiment, the elastic member 144-3a is sleeved on the connecting rod 144-2a and located in the housing portion 142-4a, with one end fixedly connected to the head portion 144-1a and the other end connected to or in contact with the rotating seat 142a, thereby always applying a pressing force to the rotating seat 142a toward the positioning portion 145a. Exemplarily, the elastic member 144-3a may be a compression spring or an elastic sheet.

[0069] In this embodiment, in the usage position (see Figure 1), the projection 142-8a of the rotating seat 142a fits into the positioning recess 145-2a in Figure 17A, thereby holding the support plate 150a parallel to the horizontal plane. In the process of a caregiver switching the support plate 150a from the usage position to the storage position (see Figure 2), the caregiver pivots the support plate 150a upward, sliding the projection 142-8a along the inclined surface on the positioning protrusion 145-1a side, and pressing the elastic member 144-3a in the direction of the rotation axis R, causing the rotating seat 142a to begin rotating around the rotation axis R. In this process, the rotating seat 142a moves to the left away from its engagement with the fixed seat 140a along the rotation axis R in Figure 18. When the support plate 150a pivots, for example, 90 degrees to reach its storage position, the biasing force of the elastic member 144-3a causes the projection 142-8a of the rotating seat 142a to fall back into the corresponding positioning recess 145-2a and engage. This allows the support plate 150a to be locked in multiple positions.

[0070] Selectively, the fixed seat 140a further includes a positioning member 143a located behind the locking member 142a along the direction of travel X, the positioning member 143a for preventing the support plate 150a from moving along the direction of travel X in the use position so as not to accidentally unlock the support plate 150a and cause it to fall off the frame 100a. The positioning member 143a may be formed by a raised portion of the housing of the fixed seat 140a, or it may be configured as a column, for example. The positioning member 143a engages with a housing for the positioning member 152a (see Figure 19) to position the support plate 150a in the use position parallel to the horizontal plane. The housing for the positioning member 152a is formed by the side wall 158a of the support plate 150a. According to this embodiment, the upper surface of the positioning member housing 152a that contacts the positioning member 143a is provided as an arc-shaped groove, which is a retaining portion 157a, and the shape of the retaining portion 157a conforms to the cylindrical positioning member 143a. The arc-shaped retaining portion 157a forms a projection 157-1a, so when the positioning member 143a engages with the positioning member housing 152a, that is, when the support plate 150a is in a position parallel to the horizontal plane and the locking member 142a is not locked in the locking member housing 153a, it is not easy for the positioning member housing 152a to escape directly rearward from the positioning member 143a along the direction of travel X. According to this embodiment, the support plate 150a disengages from the frame 100a without being blocked by the retaining portion 157a only when the support plate 150a is lifted upward by at least a certain distance from the usage position, thereby preventing the support plate 150a from detaching from the frame 100a while in use.

[0071] As shown in Figure 19, a locking member housing 153a is provided at one end of the side wall 158a of the support plate 150a adjacent to the rear wall 159a. The locking member housing 153a is formed from the side wall 158a. Exemplarily, elongated engaging blocks 156a facing the direction of travel X are provided at the upper and lower parts of the locking member housing 153a, respectively. The engaging blocks 156a are inserted into recesses 142-3a and come into contact with partition plates 142-6a (see Figure 17), thereby allowing the support plate 150a to pivot synchronously with the rotating seat 142a. The end of the lower engaging block 156a facing the rear wall 159a is provided as a gradually widening inclined surface. When the engaging block 156a is inserted into the rotating seat 142a, this inclined surface first comes into contact with the inclined end of partition plate 142-6a, providing a guiding effect and reducing insertion resistance.

[0072] Between the engaging blocks 156a, a protrusion 155a is provided at the end of the locking member housing 153a away from the rear wall 159a, and the protrusion 155a is spaced apart from the engaging block 156a by a distance corresponding to the thickness of the partition plate 142-6a. The protrusion 155a can be inserted into the receiving groove 142-7a of the rotating seat 142a (see Figures 17B and 17C). The receiving groove 142-7a is formed surrounded by the partition plate 142-6a and the second wall portion 142-2a, and has an opening at the first wall portion 142-1a. When the support plate 150a is locked to the rotating seat 142a, the protrusion 155a and the locking portion 154-5a (described later) sandwich the rotating seat 142a from both the front and rear sides, thereby increasing the stability of the engagement between the rotating seat 142a and the support plate 150a.

[0073] A locking assembly 154a is provided on the rear wall 159a of the support plate 150a. The locking assembly 154a includes a locking block 154-1a and a sliding groove 154-2a that extends perpendicularly to the side wall 158a, and the locking block 154-1a is slidable within the sliding groove 154-2a.

[0074] The rotating seat 142a is provided with an engagement groove 142-5a that cooperates with the locking block 154-1a. The engagement groove 142-5a is formed surrounded by a partition plate 142-6a and a second wall portion 142-2a, has an opening in the first wall portion 142-1a, and is used to receive the locking block 154-1a. The engagement groove 142-5a has a flange 142-9a on the first wall portion 142-1a, and the locking portion 154-5a of the locking block 154-1a (see Figures 21 and 22) and the flange 142-9a can engage and lock with each other. Selectively, the shape of the engagement groove 142-5a is axially symmetric with respect to the rotation axis R of the receiving groove 142-7a. Selectively, both the engagement groove 142-5a and the receiving groove 142-7a are located inside the frame 100a, that is, the engagement groove 142-5a and the receiving groove 142-7a of the fixed seat 140a located on the left side of the frame 100a face each other, as do the engagement groove 142-5a and the receiving groove 142-7a of the fixed seat 140 located on the right side of the frame 100a.

[0075] Next, based on Figures 20A, 20B, 21, and 22, the locking and unlocking of the locking block 154-1a along the slide groove 154-2a relative to the rotating seat 142a will be explained in detail. Figures 21 and 22 are cross-sectional views along the cross-sectional line II-II in Figure 20B, showing the locking block 154-1a in the locked and unlocked states, respectively.

[0076] Figure 21 shows the locked state, where the locking block 154-1a extends to the right from the slide groove 154-2a into the engagement groove 142-5a and engages with the flange 142-9a, and the flange 142-9a can prevent the locking block 154-1a from retracting into the slide groove 154-2a. The locking block 154-1a is provided as a quick-release push button and has a handle portion 154-7a. The locking block 154-1a further has a position limiting block 154-3a provided at one end away from the rotating seat of the locking block 154-1a and slidable within the slide groove 154-2a. The position limiting block 154-3a has a position limiting portion 154-6a, which is inserted into a notch 159-1a formed in the rear wall 159a and is blocked by the notch 159-1a, thereby limiting the distance that the locking block 154-1a extends from the slide groove 154-2a.

[0077] The lock assembly 154a further includes a compression spring type elastic member 154-4a, which is housed in a slide groove 154-2a. One end of the elastic member 154-4a is connected to the bottom of the slide groove 154-2a, and the other end abuts against the position limiting block 154-3a. The elastic member 154-4a causes the position limiting block 154-3a to always abut against the right end of the notch 159-1a without external force, thereby automatically locking the locking block 154-1a.

[0078] Figure 22 shows the released state, where the caregiver grasps the handle portion 154-7a and pushes the locking block 154-1a to the left. The locking block 154-1a moves from the slide groove 154-2a to the left, overcoming the obstruction of the flange 142-9a and not completely overlapping with the rotating seat 142, thus releasing the rotating seat 142a. In this state, the caregiver can detach the support plate 150a from the rotating seat 142a and remove the support plate 150a from the frame 100a.

[0079] As can be seen from Figures 21 and 22, the protrusion 155a and the engagement block 156a have substantially the same width, and this width is smaller than the width of the receiving groove 142-7a and the recess 142-3a, forming a movable space. As a result, when the rotating seat 142a rotates and the second wall portion 142-2a moves away from contact with the fixed seat 140a, the second wall portion 142-2a can move a certain distance to the left. Correspondingly, a movable space is also provided between the first wall portion 142-1a and the side wall 158a.

[0080] In this embodiment, the transition between the receiving groove 142-7a and the first wall portion 142-1a is provided as a chamfered portion 142-10a. When the housing portion 153a for the locking member of the support plate 150a is inserted into the locking member 142a, that is, in the process of inserting the support plate 150a into the locking member 142a from top to bottom in Figure 21, the locking portion 154-5a is always in the protruding position shown in Figure 21 without any external force, so the locking portion 154-5a first comes into contact with the chamfered portion 142-10a of the receiving groove 142-7a of the rotating seat 142a. The chamfered portion 142-10a guides the locking portion 154-5a to be pulled into the slide groove 154-2a against the elastic force of the elastic member 154-4a, thereby reducing frictional resistance between the members and facilitating insertion.

[0081] According to this disclosure, in order to achieve relative motion with low resistance, all contact surfaces that appear during the movement between members can be provided as chamfered portions.

[0082] According to this embodiment, when a caregiver rotates the support plate 150a, it does not require an unlocking operation and can be achieved simply by pushing the support plate 150a or the seat plate directly upward, making the operation very convenient. The support plate 150a can be positioned in multiple rotational positions, meeting the needs of use and storage. The attachment and detachment structure of the support plate 150a is simple and convenient, and the support plate 150a can be removed from the frame only after it has been removed from the use position, thus preventing accidental operation.

[0083] Since the present application can be concretely implemented in various forms without departing from the spirit and substance thereof, the above embodiments are not limited to any of the above details and should be interpreted most broadly within the scope defined by the claims, so all variations falling within the scope of the claims or equivalents thereto should be covered by the claims. [Explanation of symbols]

[0084] 1 Child Carrier 100 frames 110 Front Leg Frame 120 Rear leg frame 130 Handlebars 140 Fixed seat 141 Connecting Member 142 Engaging member, locking member 142-1 Connection Segment 142-2 Lock section 142-3 Recessed area 142-4 Engagement protrusion 142-5 Engagement groove 142-6 Positioning protrusion 143 Engaging member, positioning member 143-1 Connection Segment 143-2 Head section 143-3 Recessed area 144 Support Rod 145 Positioning section 150 Support Plate 151 Carrier Section 152 Engaging portion, housing portion for positioning member 153 Engaging portion, housing portion for locking member 154 Positioning groove 155 Engagement holes 156-1 First side wall 156-2 Second side wall 157 Guide groove 158 Penetration 159 storage units 160 Footrest 170 First connecting rod 180 Second connecting rod 200 wheels 1a Child Carrier 100a frame 110a Front Leg Frame 120a Rear leg frame 130a Handlebars 140a Fixed seat 141a Connecting member 142a Engaging member, locking member, rotating seat 142-1a First wall section 142-2a Second wall section 142-3a Recessed area 142-4a Storage area 142-5a Engagement groove 142-6a Partition plate 142-7a Receiving groove 142-8a Protrusion 142-9a Flange 142-10a Chamfered section 143a Engaging member, positioning member 144a Connection part 144-1a Head section 144-2a Connecting Rod 144-3a Elastic member 145a Positioning section 145-1a Positioning protrusion 145-2a Positioning recess 150a Support Plate 151a Support section 152a Engaging portion, housing portion for positioning member 153a Engaging portion, housing portion for locking member 154a Lock Assembly 154-1a Locking block 154-2a Slide groove 154-3a Position restriction block 154-4a Elastic member 154-5a Locking part 154-6a Position limiting section 154-7a Handheld part 155a Convex part 156a Engagement block 157a Retaining part 157-1a Protrusion 158a side wall 159a Back wall 159-1a Notch 160a Footrest 170a First connecting rod 180a Second connecting rod 200a wheels D1 Clockwise direction D2 Counterclockwise direction A part Part B C part D part E part R rotation axis X Direction of travel Y (horizontal direction) Z vertical direction II. Section Line Section II-II

Claims

1. Child carrier (1), A frame (100) including at least two engaging members (142, 143), A support plate (150) including at least two engaging portions (152, 153), The engaging members (142, 143) engage with the engaging portions (152, 153) respectively so that the support plate (150) can be detachably engaged with the frame (100). The at least two engaging members (142, 143) include a locking member (142) and a positioning member (143), and the at least two engaging portions (152, 153) include a housing portion for the locking member (153) and a housing portion for the positioning member (152), The positioning member (143) is pivotably engaged with the positioning member housing (152) so that the support plate (150) can pivotally move between a usage position and a storage position relative to the frame (100). When the support plate (150) is in the usage position, the locking member (142) engages with the locking member housing (153) so as to prevent the positioning member (143) from detaching from the positioning member housing (152). When the support plate (150) is in the storage position, the locking member (142) detaches from the locking member housing (153) so that the positioning member (143) can detach from the positioning member housing (152). A child carrier characterized by (1).

2. The positioning member housing portion (152) has a positioning groove (154) for engaging with the positioning member (143), and the locking member housing portion (153) has a guide groove (157) for engaging with the locking member (142), wherein the opening direction of the positioning groove (154) and the opening direction of the guide groove (157) are different. The housing portion (153) for the locking member further comprises a locking assembly for locking the locking member. The child carrier (1) according to feature 1.

3. The positioning member housing portion (152) is provided perpendicular to the supporting portion (151) of the support plate (150), and the opening direction of the positioning groove (154) is parallel to the supporting portion (151). The locking member housing portion (153) is provided perpendicular to the supporting portion (151) of the support plate (150), and the opening direction of the guide groove (157) is away from the supporting portion (151). The child carrier (1) according to feature 2.

4. The locking member (142) has an engaging projection (142-4), the housing portion for the locking member (153) includes a first side wall and a second side wall spaced apart, the guide groove (157) is provided in the first side wall, the second side wall has an engaging hole (155), and the locking assembly is the engaging hole (155). When the locking member (142) is inserted into the guide groove, the second side wall is movably curved in the direction of the first side wall so that the engagement hole can lock the engagement projection (142-4). The child carrier (1) according to feature 2.

5. The positioning member housing (152) has a double-layer structure, the positioning groove (154) is provided in the layer closest to the frame (100), and the positioning member (143) includes a connecting segment (143-1) fixed to the frame (100) and a head portion (143-2) adjacent to the connecting segment (143-1), the diameter of which the head portion (143-2) is larger than that of the connecting segment (143-1), and which can be positioned between the double layers of the double-layer structure by passing through the positioning groove (154). The child carrier (1) according to feature 1.

6. The locking member (142) includes a connecting segment (142-1) fixed to the frame (100) and a locking portion (142-2) adjacent to the connecting segment (142-1), and the engaging projection (142-4) is provided protruding from the tip side of the locking portion (142-2) away from the frame (100). When the locking portion (142-2) passes through the engagement hole (155), the engagement projection (142-4) prevents the second side wall (156-2) from detaching from the locking portion (142-2). The child carrier (1) according to feature 4.

7. The engaging projection (142-4) protrudes from the locking portion (142-2) toward the ground along the vertical direction (Z) of the frame (100), and the locking portion (142-2) accommodates the second side wall (156-2) by including an engaging groove (142-5) adjacent to the engaging projection (142-4). The child carrier (1) according to feature 6.

8. The positioning member housing (152), the locking member housing (153), and the support portion are an integrated member, and the end face on the tip side of the locking portion (142-2) is an inclined surface. The child carrier (1) according to feature 3.

9. The frame (100) further includes a support rod (144), the support rod (144) positioned between the at least two engaging members (142, 143) to provide support force to the support plate (150), and supporting the support plate (150) when the support plate (150) engages with the frame (100), The child carrier (1) further includes a pair of fixed seats (140), each of which is provided protruding from the frame (100), and the locking member (142) and the positioning member (143) are provided spaced apart on each of the fixed seats (140), and the end of the support plate has an inwardly recessed housing portion (159), and when the support plate (150) engages with the frame (100), the housing portion (159) abuts against the upper surface of the fixed seat (140) to provide support force to the support plate (150), including at least one of these The child carrier (1) according to feature 1.

10. Child carrier (1), The system includes a frame (100) including at least two engaging members (142, 143) and a support plate (150) including at least two engaging portions (152, 153), wherein the engaging members (142, 143) engage with the engaging portions (152, 153) respectively so that the support plate (150) can be detachably engaged with the frame (100). The at least two engaging members (142, 143) include a locking member (142), and the at least two engaging portions (152, 153) include a housing portion for the locking member (153). The locking member (142) has an engaging projection (142-4), and the housing portion for the locking member (153) includes a first side wall and a second side wall spaced apart, the first side wall being provided with a guide groove (157), and the second side wall being provided with an engaging hole (155), and the second side wall being operablely curved so that when the locking member (142) is inserted into the guide groove, the engaging hole locks into the engaging projection (142-4). A child carrier characterized by (1).

11. Child carrier (1a), It includes a frame (100a), a support plate (150a), and an engaging member, The support plate (150a) is detachably connected to the frame and can move between the usage position and the storage position. The engaging member is provided between the frame (100a) and the support plate, and the engaging member includes a locking member (142a) and a positioning member (143a). The support plate (150a) has a lock assembly (154a) and a housing for a positioning member (152a), the lock assembly (154a) engages with the locking member (142a) in a lockable manner, the housing for the positioning member (152a) cooperates with the positioning member, and the locking member (142a) is pivotable relative to the frame (100a) so that the support plate (150a) can pivot between a usage position and a storage position relative to the frame (100a). When the support plate (150a) is in the usage position, the positioning member (143a) engages with the positioning member housing (152a) to prevent the support plate (150a) from detaching from the frame (100a). When the support plate (150a) moves away from the usage position, the positioning member (143a) detaches from the positioning member housing (152a) so that the support plate (150a) can detach from the frame (100a). A child carrier characterized by the following (1a).