Side protection width adjustment mechanism

Abstract

To provide a side protection width adjustment mechanism.SOLUTION: An adjustment mechanism is used to adjust a width between side protections of a child seat. The child seat includes: a body; two side protections; a headrest; a headrest height adjustment mechanism; and elastic structures each of which is disposed between the side protection and the body. A height of the headrest may be adjusted between a first height and a second height higher than the first height. The adjustment mechanism adjusts the width between the two side protections so that the width becomes small when the headrest of the child seat is moved to a position of the first height and the width becomes large when the headrest is moved to a position of the second height. The elastic structure generates a tensile force that allows outward axis rotation movement of the side protection so that the width between the two side protections becomes wider when an external force is not applied.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an infant support device, and more particularly to a child seat and its side protection width adjustment mechanism. [Background technology]

[0002] As child car seats become more widely used, people's demands for functionality from child car seats are also increasing. Child car seats are not only required to ensure the safety of an infant while seated in them, but also to be comfortable for an infant to sit in, and to be easy to operate and use.

[0003] Here, the child car seat is installed in the vehicle and the child is fastened to the child car seat by using a seat belt, so that the possibility of the child being injured can be effectively reduced even if the vehicle suddenly stops or an unexpected accident occurs. A child car seat usually comprises a chair, a backrest connected to the chair, a headrest connected to the backrest, and side protection, and the positions of the headrest and side protection can generally be adjusted relative to the backrest to fit the child's physique. In the conventional child car seat, the height of the headrest can be adjusted relative to the backrest together with the side protection, so that the width of the headrest and the side protection can be adjusted simultaneously. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Chinese Patent No. 103921705 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when multiple child seats are installed in the back seat of a car, the side protections of each child seat interfere with each other or with the car door, making it difficult to adjust the width of the side protections, and as a result, the headrest cannot be adjusted, making it inconvenient to use.

[0006] SUMMARY OF THE PRESENT EMBODIMENTS In view of the above, an object of the present invention is to provide a side protection width adjustment mechanism and a child seat that are capable of adjusting the width of the side protection without requiring adjustment of the headrest height. [Means for solving the problem]

[0007] In order to achieve the above object, a side protection width adjustment mechanism according to one embodiment of the present invention is used in a child seat provided with a backrest, a headrest, and a pair of side protections on both the left and right sides of the backrest, and is a side protection width adjustment mechanism for adjusting the width between the pair of side protections, the side protection width adjustment mechanism comprising an elastic structure provided between the pair of side protections and the backrest and providing an elastic force acting on the pair of side protections, and configured to adjust the width between the pair of side protections so that when the headrest of the child seat is in a first state in which it has been moved to a relatively low position, the width between the pair of side protections becomes narrower, and when the headrest of the child seat is in a second state in which it has been moved to a relatively high position, the width between the pair of side protections becomes wider, and when an external force applied to the pair of side protections is greater than the elastic force of the elastic structure, the pair of side protections are moved due to interference from the external force, and the width between the pair of side protections is adjusted. Effect of the Invention

[0008] The side protection width adjustment mechanism of the present invention is a drive mechanism provided on the side protection. The device has a movable inclined groove and a driving member fixed to the headrest and adapted to the driving inclined groove, and also has an elastic structure between the side protection and the main body of the child seat. With this structure, when the height of the headrest is adjusted, the side protection is driven to adjust its width by the driving member and the driving inclined groove, so that the width of the side protection is elastically adjusted even if the external force interfering with the side protection is greater than the elastic force of the elastic structure. Therefore, the side protection width can be adjusted without adjusting the height of the headrest, which reduces interference and makes it convenient and easy to operate when used. The child seat equipped with the side protection width adjustment mechanism of the present invention also has the same effect. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a structure of an embodiment of a child seat of the present invention; [Diagram 2] FIG. 1 is a perspective view of a headrest and a side protection of a child seat according to the present invention in a first state. [Diagram 3] FIG. 2 is a perspective view of the headrest and side protection of the child seat of the present invention when in a second state. [Figure 4] FIG. 3 is a front view of FIG. 2. [Diagram 5] FIG. 3 is a diagram of FIG. 2 as seen obliquely from behind. [Figure 6] 1A and 1B are diagrams illustrating a slide connection structure. [Figure 7] FIG. 7 is an enlarged view of the range indicated by the symbol A in FIG. 6. [Figure 8] An enlarged view of the side protection. [Figure 9] This is a diagram showing the state in which the side protection of the child seat is not yet subjected to external force interference. [Figure 10] 10 is a diagram showing a state after an external force has interfered with the side protection in FIG. 9. FIG. [Figure 11] FIG. 11 is an explanatory diagram showing another embodiment of the child seat of the present invention. [Figure 12] 12 is an explanatory diagram of the structure of the driving member in FIG. 11. [Figure 13] FIG. 12 is a view of the drive member of FIG. 11 from a first angle. [Figure 14] FIG. 12 is a view of the drive member of FIG. 11 from a second angle. [Figure 15] FIG. 12 is a view of the drive member of FIG. 11 from a third angle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The child seat 1 of the present invention will be described with reference to Fig. 1 to Fig. 5. Fig. 1 is a perspective view showing the structure of an embodiment of the child seat of the present invention, Fig. 2 is a perspective view of the child seat of the present invention when the headrest and side protection are in a first state, Fig. 3 is a perspective view of the child seat of the present invention when the headrest and side protection are in a second state, Fig. 4 is a view of Fig. 2 as seen from the front, and Fig. 5 is a view of Fig. 2 as seen diagonally from behind.

[0011] As shown in Fig. 1, the child car seat 1 of this embodiment comprises a base 10, a chair 20, a backrest 30, a headrest 40, and a pair of side protections 50. The base 10 is for supporting the entire child car seat 1 from below. The chair 20 is provided on the base 10. The backrest 30 is provided so as to extend vertically from the rear end of the chair 20. The headrest 40 is connected to the upper end of the backrest 30. The pair of side protections 50 are connected to two opposing sides of the backrest 30 and are formed on both sides of the backrest 30 to protect the sides of a child riding in the seat.

[0012] As shown in FIG. 5, the headrest 40 has an operating unit 41 on the back side thereof, which is used to adjust the height of the headrest.

[0013] An explanation will also be given with reference to Fig. 6. Fig. 6 is a diagram for explaining the slide connection structure 70 described below. The child seat 1 further includes a side protection width adjustment mechanism 60. The side protection width adjustment mechanism 60 is provided between the headrest 40 and the side protections 50, and when the height of the headrest 40 is adjusted, the headrest 40 rotates about its axis together with both side protections 50 by the side protection width adjustment mechanism 60. This allows the width between both side protections 50 to be adjusted, making it convenient for use with infants of different sizes.

[0014] In addition, when the width between both side protections 50 is widened and interferes with other objects, the width can be narrowed by rotating the side protections 50 inwardly on their axes without adjusting the height of the headrest 40.

[0015] This embodiment will be described with continued reference to Fig. 6. The lower end of the side protection 50 is pivotally supported by the backrest 30. The side protection 50 pivots in accordance with the height adjustment of the headrest 40. The upper end of the side protection 50 is slidably connected to the backrest 30 by a sliding connection structure 70, which serves as a buffer space when the side protection 50 is subjected to an external force.

[0016] Specifically, the slide connection structure 70 includes a guide groove 71 and a guide member 72, as shown in FIG. 8. FIG. 8 is an enlarged view of the side protection 50. The guide groove 71 is provided on either the side protection 50 or the backrest 30. The guide member 72 is fitted into the slide groove 71 and slides along the slide groove 71. The guide member 72 is fixed to the other of the side protection 50 or the backrest 30. In this embodiment, the guide groove 71 is formed at the upper end of the side protection 50 so as to extend in the front-rear direction, as shown in FIG. 8. The guide member 72 is provided so as to be fitted into the guide groove 71 and is fixed to the backrest 30, and moves the side protection 50 relative to the guide member 72.

[0017] 9 and 10, the backrest 30 is provided with one protruding rib 31. Here, Fig. 9 is a diagram showing a state in which the side protection of the child seat is not yet subjected to external force interference. Meanwhile, Fig. 10 is a diagram showing a state after the side protection in Fig. 9 is subjected to external force interference. When the side protection 50 moves relative to the backrest 30 due to external force interference, the protruding rib 31 can position the side protection 50.

[0018] The structure of the adjustment mechanism 60 for the side protection width of the child seat 1 of this embodiment will be further described with reference to Figs.

[0019] First, a description will be given with reference to Figures 4, 6 and 7. The side protection width adjustment mechanism 60 comprises a drive member 61 and a drive inclined groove 62. Here, Figure 7 is an enlarged view of the range indicated by the symbol A in Figure 6. The drive inclined groove 62 is provided in the side protection 50, and has a first portion 621 and a second portion 622 that present a predetermined angle (Figure 7).

[0020] The first portion 621 and the second portion 622 are configured such that their extension directions are not parallel to the sliding direction of the headrest 40 (see FIG. 7). The driving member 61 is fixed to the headrest 40 and coupled to be slidable along the driving inclined groove 62, and the driving inclined groove 62 is provided with an elastic structure.

[0021] When the height of the headrest 40 is adjusted, the side protections 50 are driven and rotated about their axes by the interaction of the driving member 61 and the driving inclined groove 62, so that the width between the side protections 50 is also adjusted. When the headrest 40 is rotated, the side protection 50 can be rotated inward by the tension generated by pushing and moving the elastic structure in the drive inclined groove 62, so that only the width of the side protection 50 can be adjusted without adjusting the height of the headrest 40.

[0022] 4, the driving member 61 includes a driving rod 611 and an insert 612. The driving rod 611 is fixed to the headrest 40. The insert 612 is fixed to an end of the driving rod 611. The insert 612 is slidably disposed in the driving inclined groove 62. Therefore, when the headrest 40 slides up and down, the driving rod 611 is carried along with the headrest 40, whereby the insert 612 and the driving inclined groove 62 interact with each other to drive the side protection 50, thereby adjusting the width.

[0023] In particular, the backrest 30 is formed with a chute 32 extending along the vertical direction, the insert 612 is slidably fitted into the chute 32, and the chute 32 guides the sliding movement of the insert 612.

[0024] Next, a description will be given with reference to Figures 6 to 8. The side protection 50 is provided with a protruding edge 51, and a long groove 62' is provided on one side of the protruding edge 51 (see Figure 8). Between the long groove 62' and the protruding edge 51, an elastic abutment member 63 is provided with a pivot connection, as shown in Figure 9. The elastic abutment member 63 can move between a first position away from the protruding edge 51 and a second position close to the protruding edge 51. When the elastic abutment member 63 is in the first position, the elastic abutment member 63 extends above the long groove 62', forming the driving inclined groove 62 between the elastic abutment member 63 and a side wall 620' of the long groove 62' (see Figure 7), and the insertion 612 is held in the driving inclined groove 62.

[0025] In this state, when the insert 612 slides upward, the insert 612 acts on the elastic abutment member 63, and the side protection 50 rotates about its axis due to the interaction between the insert 612 and the elastic abutment member 63. In addition, in the process of the insert 612 sliding upward, the elastic abutment member 63 is always located at the first position and does not deform the driving inclined groove 62. In contrast, in the process of the insert 612 sliding downward, the insert 612 acts on the side wall 620' (the other side wall of the driving groove 62), which causes the side protection 50 to rotate about its axis in the opposite direction.

[0026] When the side protection 50 is in a wide state and is subjected to interference from an external force, the external force causes the insert 612 to push out the elastic abutment member 63, causing the elastic abutment member 63 to rotate from the first position to the second position, and the tension generated thereby can rotate the side protection 50, but at this time there is no need to adjust the position of the headrest 40.

[0027] As shown in Figures 7 and 8, the contact block 52 is provided to protrude from the side protection 50. The contact block 52 extends upward from the upper end wall of the long groove 62'. When the elastic contact member 63 is located at the first position, it always contacts the contact block 52 by elastic force. Therefore, the shape of the driving inclined groove 62 that the elastic contact member 63 surrounds together with the side wall 620' of the long groove 62' does not change (Figure 7).

[0028] The following description will be given with reference to Fig. 8. The long groove 62' has a first portion 621' that is substantially fan-shaped and a second portion 622 that is elongated. The width of the first portion 621' gradually increases from bottom to top. As a result, when the side protection 50 is subjected to interference from an external force, the side protection 50 moves relative to the backrest 30, but the width of the first portion 621' provides a space for the relative movement of the insert 612.

[0029] 7 to 9, the elastic contact member 63 is made up of a contact member 631 rotatably connected to the side protection 50 and an elastic contact member 631 that contacts between the contact member 631 and the protruding edge 51. The contact member 631 includes a member 632. The elastic member 632 constantly provides the abutment member 631 with momentum to move from the second position to the first position. In this embodiment, the lower end of the contact member 631 is rotatably connected to the side protection 50. The elastic member 632 is a spring. The spring contacts between the upper end of the contact member 631 and the protruding edge 51. The elastic force of the spring causes the upper end of the contact member 631 to contact the contact block 52. As a result, the contact member 631 and the side wall 620' of the long groove 62 define the driving inclined groove 62 in which the insert 612 slides and moves. The interaction between the insert 612 and the driving inclined groove 62 drives the side protection 50 to rotate about its axis.

[0030] The elastic member 632 is not limited to a spring, but may be a torsion spring provided at the connection point of the contact member 631 to the side protection 50.

[0031] 7 to 9 will be referred to. A positioning block 6311 and a protrusion 6312 extending in opposite directions are provided on the upper end of the abutting member 631. One end of the elastic member 632 is housed in the positioning block 6311, and the other end is in contact with the protruding edge 51. When the abutting member 631 is positioned at the first position, the protrusion 6312 is in contact with the contact block 52.

[0032] Further, an engagement block 6313 is provided on the tip side of the abutting member 631. The engagement block 6313 intersects with the rotation plane of the abutting member 63. A positioning member 53 corresponding to the engagement block 6313 is fixed to the side protection 50. The engagement block 6313 slides and moves to engage with the positioning member 53.

[0033] Different states of the child seat 1 in this embodiment will be described with reference to Figs.

[0034] First, a description will be given with reference to Fig. 2. Fig. 2 is a perspective view of the headrest 40 and the side protections 50 of the child seat of the present invention in a first state. In this state, the height of the headrest 40 is relatively low, and the width between the two side protections 50 is relatively narrow.

[0035] When the headrest 40 is slid upward, as shown in Figures 3 and 4, in the process, the headrest 40 carries with it the driving rod 611 fixed to the headrest 40. As a result, the insertion 612 fixed to the end of the driving rod 611 slides upward along the chute 32 (see Figures 3 and 4).

[0036] When the insert 612 slides upward, it interacts with the side wall of the driving inclined groove 62, specifically, the elastic member 632 applies an elastic force to the abutting member 631, and the contact block 52 contacts the abutting member 631 all the time. That is, the shape of the driving inclined groove 62 is maintained and is not substantially deformed. As shown in Figs. 6 to 7, during this process, the shape of the driving inclined groove 62 is maintained and is substantially unchanged, so the insert 612 slides upward on the chute 32 and interacts with the abutting member 631 to rotate the side protection 50 outward on its axis, so that the width between the two side protections 50 increases with the upward sliding movement of the insert 612. When the adjustment is completed in this manner, the headrest 40 is adjusted to a relatively high position, and the width of the side protection 50 is also relatively wide. As shown in Figs. 3 and 9, at this time, the insert 612 is maintained at a predetermined position, and the elastic member 632 can provide a buffer space when it is subjected to an external force and interferes, as will be described in detail below.

[0037] When the side protection 50 of the child seat 1 is in a relatively wide state as shown in FIG. 9, it may interfere with the side protection of other child seats or the door of the car. In this case, the side protection 50 may be pressed by another child seat or the door of the car, and the side protection 50 may slide relative to the backrest 30 until it is in the state shown in FIG. 10. In this process, the abutment member 631 pivots from the first position to the second position. The abutment member 631 pivots and compresses the elastic member 632, and the tension generated thereby causes the side protection 50 to pivot inwardly and narrow the width between the two side protections 50. This continues until the abutment member 631 rotates to the second position and abuts against the protruding edge 51, as shown in FIG. 10. In this way, it is possible to adjust the width of the side protection 50 without adjusting the height of the headrest 40. When the pressure is released, the compressed elastic member 632 returns to its original state, and the tension generated thereby causes the side protection 50 to pivot outwardly and return to the width state before interference.

[0038] In another embodiment, the elastic force of the elastic member 632 acting on the abutment member 631 is insufficient to slide the insert 612 upward to the front of the first portion 621' of the long groove 62' and maintain the shape of the driving inclined groove 62. At this time, the abutment member 631 is displaced and changes the shape of the driving inclined groove 62, thereby providing a space to allow the width of the side protection 50 to change when an external force from the inside to the outside is applied to the side protection 50. In this embodiment, when the insert 612 continues to slide upward along the chute 32 to the rear of the first portion 621' of the long groove 62', the elastic force of the elastic member 632 acting on the abutment member 631 is sufficient to bring the contact block 52 into contact with the abutment member 631 again. That is, the shape of the driving inclined groove 62 is restored to the state before the abutment member 631 was displaced, thereby pushing the side protection 50 to rotate outward.

[0039] In contrast, during the process of adjusting the height of the headrest 40 from the state shown in Figure 3 to the state shown in Figure 2, the insert 612 acts on the other side wall of the drive groove 62 (i.e., the side wall 620' of the long groove 62'), and the horizontal force acting on the side wall 620' of the insert 612 can drive both side protections 50 to rotate inwardly on their axes, thereby narrowing the width between the two side protections 50.

[0040] Hereinafter, another embodiment of the child car seat of the present invention will be described with reference to Figs. 11 to 15. Fig. 11 is an explanatory diagram showing the structure of the child car seat according to another embodiment. Fig. 12 is an explanatory diagram showing the structure of the drive member of Fig. 11, and Fig. 13 is a view of the drive member of Fig. 11 as viewed from a first angle. Fig. 14 is a view of the drive member of Fig. 11 viewed from a second angle. Fig. 15 is a view of the drive member of Fig. 11 viewed from a third angle. The only difference between the child seat 1 and the above-mentioned embodiment is the adjustment mechanism 60 for the side protection width, so only the differences will be described below and redundant description will be omitted.

[0041] First, a description will be given with reference to Figs. 11 to 13. The side protection width adjustment mechanism 60 includes a drive member 61' fixed to the headrest 40, and a drive inclined groove 62 provided on the side protection 50 and slidably coupled to the drive member 61'. The drive inclined groove 62 includes a first portion 621 and a second portion 622 each having a predetermined angle. The first portion 621 and the second portion 622 are both elongated in shape and are not parallel to the sliding direction of the headrest 40. As a result, when the height of the headrest 40 is adjusted, the interaction between the drive member 61' and the drive inclined groove 62 can drive the side protection 50 to rotate about an axis and adjust the width.

[0042] In this embodiment, the driving member 61' is provided with an elastic means that operates as an elastic structure, and when the side protection 50 is subjected to interference from an external force, the part of the driving member 61' that corresponds to the elastic means is pushed and moved, and tension is generated, thereby moving the side protection 50. The side protection 50 can be pivoted inwardly, and the width of the side protection 50 can be adjusted without adjusting the height of the headrest 40. When the external force interference disappears, the compressed drive member 61' returns to its original state and tension is generated, which allows the side protection 50 to be pivoted outwardly to return to the relatively wide state before the interference.

[0043] Hereinafter, this embodiment will be described with reference to FIG. 12. The driving member 61' includes an elastic member 611' fixed to the headrest 40 and an insert 612 connected to the elastic member 611'. The elastic member 611' includes a fixed portion 6111', a connecting portion 6112', and a pusher portion 6113' connected between the fixed portion 6111' and the connecting portion 6112' and having an inclined structure. The pusher portion 6113' has elasticity. The fixed portion 6111' is engaged with and fixed to the headrest 40, and the insert 612 is provided to open a hole in the connecting portion 6112'. The insert 612 is connected to the driving inclined groove 62 so as to be slidable. When the side protection 50 is subjected to interference from an external force, the pusher portion 6113' is subjected to pressure and deformed. This generates an outward tension to push the side protection 50 to rotate inward around its axis.

[0044] In this embodiment, the elastic member 611' is a torsion spring made of steel or iron wire.

[0045] 14, in this embodiment, the sliding connection structure 70 comprises a guide groove 71 provided in the backrest 30 and a guide member 72 fixed to the side protection 50. The guide member 72 and the guide groove 71 are slidably connected, and the movement of the side protection 50 is restricted via the guide groove 71. Naturally, the same effect can be obtained by providing the guide groove 71 in the side protection 50 and providing the guide member 72 slidably connected thereto in the backrest 30.

[0046] The method of adjusting the width of the side protection 50 of the child seat 1 of this embodiment is the same as that of the above-mentioned embodiment, so a description thereof will be omitted.

[0047] The side protection width adjustment mechanism 60 of the present invention includes a driving member 61, 61' fixed to the headrest 40 and a driving inclined groove 62 provided in the side protection 50, and the driving member 61, 61' is slidably coupled to the driving inclined groove 62, and includes a member that functions as an elastic structure in either the driving member 61, 61' or the driving inclined groove 62. Therefore, when adjusting the height of the headrest 40, the width of the side protection 50 can be adjusted by the driving member 61, 61' and the driving inclined groove 62. Furthermore, when the external force that interferes with the side protection 50 is greater than the elastic force of the elastic structure, the width of the side protection 50 is elastically adjusted, so that the width of the side protection 50 can be changed without adjusting the height of the headrest 40, and the purpose of reducing interference can be achieved. Furthermore, the method of use is simple. Furthermore, the child seat 1 equipped with the side protection width adjustment mechanism 60 achieves the same effect.

[0048] The present specification also discloses the following invention.

[0049] 1): An adjustment mechanism (60) for adjusting the width between the side protections (50) of a child seat (1), The child seat (1) is The main body, 2 side protections (50) and A headrest (40); A height adjustment mechanism for the headrest (40); a resilient structure disposed between the side protection (50) and the body, the resilient structure providing a biasing force acting on the side protection (50); The headrest (40) is height-adjustable between a first height and a second height higher than the first height; the adjustment mechanism (60) is adapted to adjust the width between the two side protections (50) so that the width is smaller when the headrest (40) of the child seat (1) is moved to the first height position and the width is larger when the headrest (40) is moved to the second height position, The elastic structure generates tension that allows the side protections (50) to pivot outwardly so that the width between the two side protections (50) becomes wider when no external force is applied.

[0050] 2): The adjustment mechanism (60) described in 1), characterized in that the elastic structure allows the side protection (50) to move so as to adjust the width between the two side protections (50) when an external force greater than the bias force of the elastic structure is applied to the side protection (50).

[0051] 3): The adjustment mechanism (60) described in 2), characterized in that the elastic structure allows the headrest (40) to move to a state in which the width between the two side protections (50) is narrowed without adjusting the height of the headrest (40) when the external force is greater than the bias force of the elastic structure.

[0052] 4): The adjustment mechanism (60) according to 2) or 3), characterized in that the adjustment mechanism (60) can rotate relative to one another to change the width between the two side protections (50) when the external force is applied, without adjusting the height of the headrest (40).

[0053] 5): The adjustment mechanism (60) according to any one of 1) to 4), characterized in that the adjustment mechanism (60) is configured to synchronously rotate the side protections (50) about an axis during adjustment of the height of the headrest (40) in order to adjust the width between the two side protections (50).

[0054] 6): a driving inclined groove (62) arranged in one of the two side protections (50); a drive member (61, 61') fixedly disposed on the headrest (40), the drive member (61, 61') having an insert (612) that slidably engages with the drive inclined groove (62) and moves along the drive inclined groove (62) between the first height position where the width between the side protections (50) becomes narrow and the second height position where the width between the side protections (50) becomes wide, The adjustment mechanism (60) described in any one of 1) to 5) is characterized in that when the insertion (612) is moved between the first height position and the second height position, the external force maintains the outer shape of the driving inclined groove (62).

[0055] 7): The adjustment mechanism (60) described in 6), characterized in that the driving inclined groove (62) extends in a direction intersecting the height adjustment direction of the headrest (40) relative to the body of the child seat (1).

[0056] 8): The adjustment mechanism (60) according to 6) or 7), characterized in that the driving member (61') has a fixed part (6111') fixed to the headrest (40), and also has an elastic member (611') extending from the fixed part to a connecting part (6112') on the opposite side of the fixed part to form the elastic structure, and the connecting part is provided with the insertion (612) so that when the driving member (61') receives an external force, the driving member (61') deforms and the side protection (50) can rotate about its axis.

[0057] 9): The adjustment mechanism (60) described in 8) is further provided with an elastic abutment member (63), which is arranged on the side protection (50) so as to confine the boundary side wall of the driving inclined groove (62) and is configured as the elastic structure, and when the side protection (50) is subjected to an external force, the elastic abutment member (63) deforms so as to enable axial rotation of the side protection (50).

[0058] 10): The adjustment mechanism (60) described in 9) is characterized in that it comprises a long groove (62') formed in the side protection (50), the elastic abutment member (63) is arranged adjacent to the side of the long groove (62') and axially rotatable so as to rotate relative to the long groove (62') from a first position to a second position by an external force, the elastic abutment member (63) restrains a boundary side wall of the driving inclined groove (62), and the elastic abutment member (63) deforms to change the outer shape of the long groove (62).

[0059] 11): The adjustment mechanism (60) described in 9) or 10) is characterized in that the elastic abutment member (63) includes an abutment member (631) arranged at its rotating end so as to be axially rotatable relative to the side protection (50), and an elastic member (632) arranged between the abutment member (631) and the side protection (50) to bias the abutment member (631) toward the first position.

[0060] 12): The adjustment mechanism (60) described in 11), characterized in that the elastic member (632) biases the biasing end of the abutment member (631) opposite the pivot end against the side protection (50), and the abutment member (631) has a positioning block (6311) that defines an accommodation space for holding the elastic member (632) therein.

[0061] The structure of other parts of the child seat 1 of the present invention is similar to that well known to those skilled in the art, so a description thereof will be omitted. The above embodiment is merely an embodiment for carrying out the present invention, and is not intended to limit the technical scope of the invention. Simple modifications of the present invention are also within the technical scope of the present invention. [Industrial Applicability]

[0062] The side protection width adjustment mechanism and child seat of the present invention are useful in situations where multiple child seats are installed in the rear seats of a vehicle and the side protections of each child seat interfere with each other or with the vehicle door. [Explanation of symbols]

[0063] 1 Child seat 10 Pedestal 20 Chairs 30 Backrest 31 Convex rib 32 SHOTS 40 Headrest 41 Operation section 50 Side Protection 51 Convex 52 Contact Block 53 Positioning member 60 Side protection width adjustment mechanism 61 Driving member 61´ Driving member 62 Drive inclined groove 62´ Nagamizo 611 Drive rod 611´ Elastic member 6111´ Fixed part 6112´ Connecting part 6113´ Pusher part 612 Insert 620´ side wall 621 First Part 621´ First part 622 Second Part 63 Elastic contact member 631 Contact parts 6311 Positioning block 6312 Convexity 6313 Engagement block 632 Elastic Members 70 Slide joint structure 71 Guide groove 72 Guide member

Claims

1. An adjustment mechanism (60) for adjusting the width between side protections (50) of a child seat (1), comprising: The child seat (1) comprises: The main body, Two side protections (50); A headrest (40); A height adjustment mechanism for the headrest (40); a resilient structure disposed between the side protection (50) and the body, the resilient structure providing a biasing force acting on the side protection (50), The headrest (40) is height adjustable between a first height and a second height higher than the first height; the adjustment mechanism (60) is adapted to adjust the width between the two side protections (50) such that the width is smaller when the headrest (40) of the child seat (1) is moved to the first height position and the width is larger when the headrest (40) is moved to the second height position, the elastic structure generates a tension that allows the side protections (50) to pivot outwards in such a way that the width between the two side protections (50) becomes wider when no external force is applied, An adjustment mechanism comprising:

2. The adjustment mechanism (60) according to claim 1, characterized in that the elastic structure allows the side protection (50) to move so as to adjust the width between the two side protections (50) when an external force greater than the bias force of the elastic structure is applied to the side protection (50).

3. The adjustment mechanism (60) according to claim 2, characterized in that the elastic structure allows the headrest (40) to move to a state in which the width between the two side protections (50) is narrowed without adjusting the height of the headrest (40) when the external force is greater than the bias force of the elastic structure.

4. 4. The adjustment mechanism (60) according to claim 2 or 3, characterized in that the adjustment mechanism (60) can be rotated relative to one another to change the width between the two side protections (50) when the external force is applied, without adjusting the height of the headrest (40).

5. The adjustment mechanism (60) according to any one of claims 1 to 4, characterized in that the adjustment mechanism (60) is configured to pivot the side protections (50) synchronously during a height adjustment of the headrest (40) in order to adjust the width between the two side protections (50).

6. a driving inclined groove (62) arranged in one of the two side protections (50); a drive member (61, 61') fixedly arranged on the headrest (40), the drive member (61, 61') having an insert (612) which slidably engages with the drive inclined groove (62) and moves along the drive inclined groove (62) between the first height position where the width between the side protections (50) becomes narrow and the second height position where the width between the side protections (50) becomes wide, The adjustment mechanism (60) of any one of claims 1 to 5, characterized in that the external force maintains the contour of the drive inclined groove (62) when the insert (612) is moved between the first height position and the second height position.

7. 7. The adjustment mechanism (60) according to claim 6, characterized in that the driving inclined groove (62) extends in a direction transverse to a height adjustment direction of the headrest (40) relative to the body of the child seat (1).

8. The adjustment mechanism (60) according to claim 6 or 7, characterized in that the driving member (61') has a fixed portion (6111') fixed to the headrest (40), and also has an elastic member (611') extending from the fixed portion to a connecting portion (6112') on the opposite side of the fixed portion to form the elastic structure, and the connecting portion is provided with the insertion (612) so that when the driving member (61') is subjected to an external force, the driving member (61') deforms and the side protection (50) can rotate about its axis.

9. The adjustment mechanism (60) according to claim 8, further comprising an elastic abutment member (63), the elastic abutment member (63) being arranged on the side protection (50) so as to confine a boundary side wall of the driving inclined groove (62) and being configured as the elastic structure, and when the side protection (50) is subjected to an external force, the elastic abutment member (63) deforms to enable axial rotation of the side protection (50).

10. 10. The adjustment mechanism (60) according to claim 9, further comprising a long groove (62') formed in the side protection (50), the elastic abutment member (63) being axially rotatably arranged adjacent to the side of the long groove (62') so as to rotate relative to the long groove (62') from a first position to a second position by an external force, the elastic abutment member (63) restraining a boundary side wall of the driving inclined groove (62), the elastic abutment member (63) deforming to change the outer shape of the long groove (62).

11. 11. The adjustment mechanism (60) according to claim 9 or 10, characterized in that the elastic abutment member (63) includes an abutment member (631) arranged at its pivot end so as to be rotatable relative to the side protection (50), and an elastic member (632) arranged between the abutment member (631) and the side protection (50) to bias the abutment member (631) towards the first position.

12. The adjustment mechanism (60) according to claim 11, characterized in that the elastic member (632) biases against the side protection (50) against a biasing end of the abutment member (631) opposite the pivot end, and the abutment member (631) has a positioning block (6311) defining an accommodation space for holding the elastic member (632) therein.

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