Side collision buffering mechanism and child safety seat

Abstract

A side collision buffering mechanism and a child safety seat. A lock portion provided on a buffering device may be inserted into an accommodation cavity of a base via a socket provided in the base, and then an elastic locking piece arranged in the accommodation cavity is caused to be wedged into a groove on the locking portion, thereby ensuring the buffering device remains in a locked position relative to the base. This improves the connection reliability between the buffering device and the base. Installation is simple and the buffering device is not easily dislodged during use. When the buffering device needs to be replaced or dismounted, pressure may be applied thereto in order to allow for rotation of the buffering device and the lock portion, whereupon the lock portion can force the elastic locking piece to deform, in turn causing a gradual separation or displacement between the groove and the elastic locking piece. The buffering device may then be pulled outward, so that the lock portion is removed from the accommodation cavity via the socket, thus allowing for disassembly of the buffering device from the base. That is, disassembly is made more convenient.

Description

Side impact cushioning and child safety seats Technical Field

[0001] The utility model relates to the technical field of vehicle accessories, in particular to a side impact buffer mechanism and a child safety seat. Background Art

[0002] A child safety seat is designed for children of different weights (or ages) and is installed in a car to effectively improve child safety. For example, in the event of an emergency brake or forward collision, a child safety seat can reduce the impact on the child and effectively prevent the child's body from moving forward rapidly, thus avoiding a secondary collision.

[0003] In the prior art, a side impact buffer mechanism is installed on the side of the child safety seat. When the side of the seat is hit, the side impact buffer mechanism can play a buffering and shock-absorbing role, further improving the safety of the seat.

[0004] However, in the current side impact buffer mechanism, the buffer component is directly fixed to the base by utilizing the elastic deformation of the plastic itself, and then the base is mounted on the seat, which makes the buffer component easy to fall off.

[0005] Utility Model Content

[0006] The purpose of the utility model is to provide a side impact buffer mechanism and a child safety seat, which can improve the connection reliability between the buffer component and the base, are not easy to fall off during use, are simple to install, and are more convenient to disassemble.

[0007] In a first aspect, the present invention provides a side impact buffer mechanism, comprising:

[0008] A base is provided with a receiving cavity and a socket communicating with the receiving cavity;

[0009] a buffer member, located on a side of the base where the socket is provided, the buffer member being provided with a locking portion, the locking portion being inserted into the accommodating cavity through the socket, wherein the locking portion is provided with a card slot;

[0010] an elastic locking member, disposed in the accommodating cavity;

[0011] In which, the buffer can be rotated to a locking position or a releasing position relative to the base under the action of external force. When the buffer is in the locking position, a part of the elastic locking member is embedded in the slot to lock the buffer. In the process of the buffer being rotated from the locking position to the releasing position, the slot and the elastic locking member are gradually separated and misaligned so that the locking portion can withdraw from the accommodating cavity from the socket.

[0012] In an optional embodiment, the elastic locking member includes an elastic member and a locking column, wherein the locking column is located at a portion of the elastic member close to the locking portion, and under the action of the elastic member, the locking column has a movement tendency toward the locking portion;

[0013] Wherein, when the buffer is located at the locking position, the locking column is embedded in the slot; when the buffer is located at the unlocking position, the locking column is separated and misaligned from the slot.

[0014] In an optional embodiment, the accommodating cavity includes a connected cavity body and a mounting hole, the cavity body and the socket are opposite and connected in the thickness direction of the base, and the mounting hole is located on the side of the cavity body, wherein the elastic member is located in the mounting hole, and one end of the elastic member abuts against the bottom of the mounting hole, and the other end abuts against the locking column.

[0015] In an optional embodiment, the accommodating cavity also includes a limiting cavity connected to both the cavity body and the mounting hole, the limiting cavity is located between the cavity body and the mounting hole, the locking column is located in the limiting cavity, and the locking column abuts against the inner wall of the limiting cavity under the action of the elastic member. During the rotation of the buffer member, the locking column can compress the elastic member under the action of the locking portion to move toward the bottom of the mounting hole.

[0016] In an optional embodiment, the base is provided with a through hole on a side facing away from the buffer member, and the locking column can be installed into the accommodating cavity through the through hole.

[0017] In an optional embodiment, the cross section of the slot is arc-shaped, and the locking column is a cylinder.

[0018] In an optional embodiment, the locking portion includes a connecting column and a locking plate, one end of the connecting column is connected to the buffer component, and the locking plate is connected to the end of the connecting column away from the buffer component, wherein the connecting column is passed through the socket, the locking plate is located in the accommodating cavity, and the card slot is provided on the side of the locking plate.

[0019] In an optional embodiment, the locking plate is in the shape of a waist-shaped plate, the slot is provided on the curved side of the locking plate, and the socket is a waist-shaped hole. When the buffer is in the locking position, the length direction of the locking plate is in the same direction as the length direction of the socket. When the buffer is in the releasing position, the length direction of the locking plate forms an angle with the length direction of the socket.

[0020] In an optional embodiment, the base is provided with a mating groove, the socket passes through the bottom of the mating groove, the buffer is provided with a mating protrusion, the mating protrusion is provided with the locking portion, and the mating protrusion and the mating groove are embedded.

[0021] In a second aspect, the present invention provides a child safety seat, comprising a seat body and a side impact buffer mechanism as described in any one of the aforementioned embodiments, which is arranged on a side surface of the seat body.

[0022] The beneficial effects of the embodiments of the present utility model include:

[0023] The locking portion provided on the buffer can be inserted into the accommodating cavity of the base through the socket provided on the base, and then the elastic locking part provided in the accommodating cavity is engaged with the card groove on the locking portion, so that the buffer is maintained in a locked position relative to the base, thereby improving the connection reliability between the buffer and the base, not being easy to fall off during use, and simple installation. Moreover, when the buffer needs to be replaced and removed, it is only necessary to apply force to the buffer to rotate the buffer and the locking portion, and the locking portion will deform the elastic locking portion, and the card groove will gradually separate and dislocate from the elastic locking portion, and then the buffer can be pulled outward to make the locking portion withdraw from the accommodating cavity from the socket, thereby realizing the removal of the buffer from the base, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] FIG1 is a schematic diagram of a side impact buffer mechanism;

[0026] FIG2 is an explosion diagram of FIG1 ;

[0027] FIG3 is a cross-sectional view of the side impact buffer mechanism when the buffer member is in the unlocked position;

[0028] FIG4 is a cross-sectional view of the side impact buffer mechanism when the buffer member is in the locked position;

[0029] Figure 5 is a schematic diagram of the combined structure of the base and the elastic locking member;

[0030] FIG6 is a cross-sectional view of the combined structure of the base and the elastic locking member;

[0031] FIG7 is a schematic diagram of a buffer member;

[0032] FIG8 is a cross-sectional view of the buffer member;

[0033] FIG9 is a schematic diagram of the movement range of the locking column;

[0034] FIG10 is a schematic diagram of the side impact buffer mechanism when the buffer member is in the unlocked position;

[0035] FIG11 is a schematic diagram of the side impact buffer mechanism when the buffer member rotates from the unlocked position toward the locked position;

[0036] FIG12 is a schematic diagram of the side impact buffer mechanism when the buffer member is in the locked position.

[0037] Icons: 10-base; 11-socket; 12-accommodating cavity; 120-cavity body; 121-limiting cavity; 122-mounting hole; 13-matching groove; 14-through hole; 20-buffer; 21-locking part; 210-connecting column; 211-locking plate; 212-slot; 22-matching protrusion; 30-elastic member; 40-locking column. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0043] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0044] Some embodiments of the present invention are described in detail below with reference to Figures 1 to 12. The following embodiments and features therein may be combined with each other unless there is any conflict.

[0045] An embodiment of the present utility model discloses a child safety seat, comprising a seat body and a side impact buffer mechanism. The seat body is mainly used for children to sit on, and the seat body comprises a connected seat and a seat back. The seat back comprises two side wings. When the child safety seat is installed inside a vehicle body, the side wings are close to the vehicle door. A side impact buffer mechanism is provided on a side of each side wing close to the vehicle door, that is, the side impact buffer mechanism is provided on the side of the seat body to reduce the impact between the side wings and the vehicle door through the side impact buffer mechanism, thereby protecting the child.

[0046] Referring to Figures 1 to 4 , the side impact cushioning mechanism includes a base 10, a cushioning member 20, and an elastic locking member. The base 10 is primarily mounted and fixed to the base body. The base 10 is provided with a receiving cavity 12 and a socket 11 communicating with the receiving cavity 12. The socket 11 is located on one side of the base 10 in the thickness direction. The buffer 20 is mainly made of plastic or other materials with good elasticity to contact the inner wall of the vehicle body to play a buffering role. It is located on the side of the base 10 where the socket 11 is provided. The buffer 20 is provided with a locking portion 21, which is inserted into the accommodating cavity 12 through the socket 11. The locking portion 21 is provided with a card slot 212; an elastic locking member is provided in the accommodating cavity 12; the buffer 20 can be rotated to a locking position or a release position relative to the base 10 under the action of external force. When the buffer 20 is in the locking position, a part of the elastic locking member is embedded in the card slot 212 to lock the buffer 20. In the process of the buffer 20 rotating from the locking position to the release position, the card slot 212 and the elastic locking member are gradually separated and dislocated, so that the locking portion 21 can withdraw from the accommodating cavity 12 from the socket 11.

[0047] The latch 21 is then engaged with the slot 212 on the latch 21 so that the buffer 20 is kept in the locked position relative to the base 10, thereby improving the connection reliability between the buffer 20 and the base 10. The device is not easy to fall off during use and is easy to install. Moreover, when the buffer 20 needs to be replaced and removed, it is only necessary to apply force to the buffer 20 to rotate the buffer 20 and the latch 21. The latch 21 will deform the elastic locking member, and the slot 212 will gradually separate and dislocate from the elastic locking member. Then, the buffer 20 can be pulled outward to make the latch 21 withdraw from the socket 11 to the accommodating cavity 12, thereby realizing the removal of the buffer 20 from the base 10, which is more convenient.

[0048] 5 and 6 , in this embodiment, the base 10 is roughly a circular block structure, the socket 11 is located in the central area of ​​the base 10, and the buffer 20 is a hollow truncated cone structure. The locking portion 21 is located in the central area of ​​the end face of the buffer 20 with a larger diameter. In this way, the base 10 and the buffer 20 are roughly coaxially matched, and the overall appearance of the side impact buffer mechanism is more regular and more beautiful. Moreover, since the buffer 20 adopts a hollow truncated cone structure, the hand feel and buffering effect are also better, it is not easy to wear, and the user experience is better.

[0049] The base 10 is provided with a mating groove 13, the socket 11 passes through the bottom of the mating groove 13, the buffer 20 is provided with a mating protrusion 22, the mating protrusion 22 is provided with a locking portion 21, and the mating protrusion 22 and the mating groove 13 are engaged with each other, which can further improve the tightness of the combination between the base 10 and the buffer 20, and the connection relationship is more reliable.

[0050] 7 to 9 , the locking portion 21 includes a connecting post 210 and a locking plate 211. One end of the connecting post 210 is connected to the buffer 20. Specifically, the connecting post 210 is hollow, one end of which is connected to the central area of ​​the mating protrusion 22, and the inner cavity of the connecting post 210 is connected to the inner cavity of the buffer 20. The locking plate 211 is connected to the end of the connecting post 210 away from the buffer 20. The connecting post 210 is inserted into the socket 11, and the locking plate 211 is located in the accommodating cavity 12. A slot 212 is provided on the side of the locking plate 211. In this way, the contact between the locking plate 211 and the inner wall of the accommodating cavity 12 and the contact between the buffer 20 and the base 10 can limit the movement of the buffer 20 relative to the seat in the thickness direction, ensuring a more reliable connection between the buffer 20 and the base 10.

[0051] Among them, the locking plate 211 is a waist-shaped plate, and a slot 212 is provided on the curved side of the locking plate 211. The socket 11 is a waist-shaped hole. When the buffer 20 is in the locked position, the length direction of the locking plate 211 is in the same direction as the length direction of the socket 11, so that it is convenient for the locking plate 211 to enter the accommodating cavity 12 from the socket 11 or to withdraw the locking plate 211 from the accommodating cavity 12 from the socket 11. When the buffer 20 is in the unlocking position, the length direction of the locking plate 211 is at an angle to the length direction of the socket 11, so that the locking plate 211 abuts against the inner wall of the accommodating cavity 12, thereby limiting the movement of the buffer 20 in the thickness direction of the base 10.

[0052] Continuing with reference to Figures 3, 4, 6, and 9, in this embodiment, the elastic locking member includes an elastic member 30 and a locking post 40. The locking post 40 is located at a portion of the elastic member 30 near the locking portion 21. Under the action of the elastic member 30, the locking post 40 tends to move toward the locking portion 21. When the buffer member 20 is in the locked position, the locking post 40 is embedded in the locking slot 212. When the buffer member 20 is in the unlocked position, the locking post 40 is separated from the locking slot 212.

[0053] The accommodating cavity 12 includes a connected cavity body 120 and a mounting hole 122. The cavity body 120 corresponds to and is connected to the socket 11 in the thickness direction of the base 10, and the mounting hole 122 is located on the side of the cavity body 120. The elastic member 30 is located in the mounting hole 122, and one end of the elastic member 30 abuts against the bottom of the mounting hole 122, and the other end abuts against the locking column 40, so that the installation of the elastic locking member can be realized.

[0054] The accommodating cavity 12 also includes a limiting cavity 121 that is connected to both the cavity body 120 and the mounting hole 122. The limiting cavity 121 is located between the cavity body 120 and the mounting hole 122. The locking column 40 is located in the limiting cavity 121, and the locking column 40 abuts against the inner wall of the limiting cavity 121 under the action of the elastic member 30. During the rotation of the buffer member 20, the locking column 40 can compress the elastic member 30 under the action of the locking portion 21 to move toward the bottom of the mounting hole 122. In this way, the movement range of the locking column 40 can be limited by the limiting cavity 121 to avoid excessive movement due to the action of the elastic member 30 after the locking column 40 is separated and misaligned from the slot 212, resulting in the locking column 40 being separated from the elastic member 30.

[0055] The base 10 is provided with a through hole 14 on the side facing away from the buffer member 20, and the through hole 14 is connected to the limiting cavity 121 of the accommodating cavity 12, so that the locking column 40 can be installed into the accommodating cavity 12 through the through hole 14. This makes it convenient to accurately install the locking column 40 into a determined position in the accommodating cavity 12, thereby improving the installation efficiency.

[0056] The cross section of the card slot 212 is arc-shaped, and the locking column 40 is cylindrical, which is conducive to the cooperation between the two. Moreover, when the buffer part 20 rotates, a large force is required to separate the locking column 40 from the card slot 212. Therefore, the arc surface cooperation of the card slot 212 and the locking column 40 can improve the binding force between the two and ensure the stability and reliability of the side impact buffer mechanism.

[0057] 10 to 12 , when assembling the side impact buffer mechanism of this embodiment, the elastic member 30 is first installed into the mounting hole 122 of the accommodating cavity 12 of the base 10, and then the locking column 40 is passed through the through hole 14 into the limiting cavity 121 of the accommodating cavity 12, so that the elastic member 30 abuts between the bottom of the mounting hole 122 and the surrounding wall of the locking column 40. The elastic member 30 is compressed, so that the locking column 40 has a tendency to move toward the bottom of the mounting hole 122 away from the mounting hole 122, so that the locking column 40 abuts against the inner wall of the limiting cavity 121, completing the installation of the elastic locking member.

[0058] Then align the side of the buffer with the lock portion 21 and the side of the base 10 with the socket 11, and then make the length direction of the socket 11 and the lock plate 211 consistent, then move the base 10 and the buffer 20 closer to each other, fit the mating protrusion 22 and the mating groove 13 together to define the position of the buffer 20 and the base 10, and at the same time, the lock plate 211 and the connecting column 210 pass through the socket 11 and enter the cavity body 120 of the accommodating cavity 12. At this time, the buffer 20 is in the unlocking position relative to the base 10, and then rotate the buffer 20 clockwise. 0, so that the curved side surface of the locking plate 211 will contact and gradually squeeze the locking column 40, so that the locking column 40 moves toward the bottom of the hole close to the mounting hole 122 to compress the elastic member 30. When the slot 212 moves to the position corresponding to the locking column 40, the elastic action of the elastic member 30 can make the locking column 40 approach the locking plate 211 to be embedded in the slot 212. At this time, the external rotational force on the buffer 20 is cancelled, and the buffer 20 can be maintained in the locked position relative to the base 10, so that the assembly of the side impact buffer mechanism can be realized.

[0059] When the buffer 20 needs to be removed from the base 10, it is only necessary to forcefully rotate the buffer 20 counterclockwise so that the slot 212 will gradually separate from the locking column 40 relative to each other, forcing the locking column 40 to compress the elastic member 30 and move toward the bottom of the mounting hole 122 until the buffer 20 rotates to the position where the curved side of the locking plate 211 is separated from the locking column 40. At this time, the elastic member 30 is not squeezed by the locking plate 211 and therefore moves toward the locking plate 211 under the action of the elastic member 30 to abut against the inner wall of the limiting cavity 121. As the buffer 20 continues to rotate until the length direction of the locking plate 211 is the same as the length direction of the socket 11, the buffer 20 can be directly pulled out, and the locking portion 21 is detached from the socket 11, completing the disassembly of the buffer 20.

[0060] In summary, the present embodiment discloses a side impact buffer mechanism and a child safety seat, wherein the latch portion 21 provided on the buffer component 20 can be inserted into the accommodating cavity 12 of the base 10 through the socket 11 provided on the base 10, and then the elastic locking member provided in the accommodating cavity 12 is engaged with the card slot 212 on the latch portion 21, so that the buffer component 20 is maintained in a locked position relative to the base 10, thereby improving the connection reliability between the buffer component 20 and the base 10, and is not easy to fall off during use, and is easy to install. Moreover, when it is necessary to replace and remove the buffer component 20, it is only necessary to apply force to the buffer component 20 to rotate the buffer component 20 and the latch portion 21, and the latch portion 21 will deform the elastic locking member, and the card slot 212 will gradually separate and dislocate from the elastic locking member, and then the buffer component 20 can be pulled outward to make the latch portion 21 withdraw from the accommodating cavity 12 from the socket 11, thereby realizing the removal of the buffer component 20 from the base 10, and the disassembly is more convenient.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A side impact buffer mechanism, characterized in that: include: A base, provided with a receiving cavity and a socket communicating with the receiving cavity; A buffer member, located at a side of the base provided with the socket, the buffer member is provided with a locking portion, the locking portion is inserted into the accommodating cavity through the socket, wherein the locking portion is provided with a card slot; An elastic locking member, disposed in the accommodating cavity; In which, the buffer can be rotated to a locking position or a releasing position relative to the base under the action of external force. When the buffer is in the locking position, a part of the elastic locking member is embedded in the slot to lock the buffer. In the process of the buffer rotating from the locking position to the releasing position, the slot and the elastic locking member are gradually separated and misaligned so that the locking portion can withdraw from the accommodating cavity from the socket.

2. The side impact buffer mechanism according to claim 1, characterized in that: The elastic locking member comprises an elastic member and a locking column, wherein the locking column is located at a position of the elastic member close to the locking portion, and under the action of the elastic member, the locking column has a movement tendency to approach the locking portion; Wherein, when the buffer is located at the locking position, the locking column is embedded in the slot, and when the buffer is located at the unlocking position, the locking column is separated and misaligned from the slot.

3. The side impact buffer mechanism according to claim 2, characterized in that: The accommodating cavity includes a connected cavity body and a mounting hole, wherein the cavity body and the socket are opposite and connected in the thickness direction of the base, and the mounting hole is located on the side of the cavity body, wherein the elastic member is located in the mounting hole, and one end of the elastic member abuts against the bottom of the mounting hole, and the other end abuts against the locking column.

4. The side impact buffer mechanism according to claim 3, characterized in that: The accommodating cavity also includes a limiting cavity connected to both the cavity body and the mounting hole, the limiting cavity is located between the cavity body and the mounting hole, the locking column is located in the limiting cavity, and the locking column abuts against the inner wall of the limiting cavity under the action of the elastic member. During the rotation of the buffer member, the locking column can compress the elastic member under the action of the locking portion to move toward the bottom of the mounting hole.

5. The side impact buffer mechanism according to claim 2, characterized in that: The base is provided with a through hole on a side facing away from the buffer member, and the locking column can be installed in the accommodating cavity through the through hole.

6. The side impact buffer mechanism according to claim 2, characterized in that: The cross section of the slot is arc-shaped, and the locking column is a cylinder.

7. The side impact buffer mechanism according to claim 1, characterized in that: The locking portion includes a connecting column and a locking plate, one end of the connecting column is connected to the buffer component, and the locking plate is connected to an end of the connecting column away from the buffer component, wherein the connecting column is passed through the socket, the locking plate is located in the accommodating cavity, and the side of the locking plate is provided with the card slot.

8. The side impact buffer mechanism according to claim 7, characterized in that: The locking plate is in the shape of a waist-shaped plate, the slot is provided on the arc-shaped side surface of the locking plate, the socket is a waist-shaped hole, when the buffer is located in the locking position, the length direction of the locking plate is in the same direction as the length direction of the socket, when the buffer is located in the unlocking position, the length direction of the locking plate forms an angle with the length direction of the socket.

9. The side impact buffer mechanism according to claim 1, characterized in that: The base is provided with a matching groove, the socket passes through the groove bottom of the matching groove, the buffer is provided with a matching protrusion, the matching protrusion is provided with the locking part, and the matching protrusion and the matching groove are embedded.

10. A child safety seat, characterized in that: It comprises a seat body and a side impact buffer mechanism as claimed in any one of claims 1 to 9, which is arranged on the side surface of the seat body.

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