Stop device, seat and vehicle

Abstract

The application provides a stop device, a seat and a vehicle. The seat comprises a stop device, a base body and a backrest support, wherein the backrest support is connected to the base body; the stop device comprises a first contact part arranged on the backrest support, a stop part rotatably connected to the base body and provided with a second contact part; the stop part can rotate relative to the base body under the action of an inertial force, so that the second contact part reaches a blocking position; when the first contact part and the second contact part abut at the blocking position, the stop part blocks the rotation of the backrest support. The stop device is suitable for limiting the movement of the seat backrest in a collision.

Description

Technical Field

[0001] This application relates to a stop device, a seat, and a vehicle. Background Technology

[0002] Seating products, taking car seats as an example, need to have good safety performance. In severe conditions such as collisions, the seat back is expected to avoid adverse displacement and deformation. Especially for seat backs with adjustable functions, effective restraints and protections are needed for the corresponding moving parts to prevent them from exceeding safe limits. Furthermore, they should also meet the requirements of lightweight design and cost savings.

[0003] In view of this, this application proposes a stop device, a seat, and a vehicle to meet at least one or a combination of the above technical needs. Utility Model Content

[0004] The purpose of this application is to provide a seat.

[0005] Another objective of this application is to provide a stop device.

[0006] Another objective of this application is to provide a means of transportation.

[0007] According to a first aspect of this application, a seat includes a stop device, a base, and a backrest support, the backrest support being rotatably connected to the base about a first rotation center; the stop device includes: a first contact portion disposed on the backrest support; a stop member rotatably connected to the base about a second rotation center and having a second contact portion; the stop member is capable of rotating relative to the base under the action of inertial force, causing the second contact portion to reach a blocking position; when the first contact portion and the second contact portion abut at the blocking position, the stop member prevents the backrest support from rotating.

[0008] The principle behind the improved technical performance of the aforementioned seat lies in the fact that when the seat and the vehicle containing it collide, the backrest support may rotate unintentionally due to loads, such as impacts and pressure from the occupant's body. The stopper automatically reaches the blocking position under the inertial force generated by the collision. When the first and second contact parts abut at the blocking position, the contact points of the first and second contact parts, the first rotation center, and the second rotation center form a triangular structure. This allows the stopper to prevent the rotation of the backrest support and improve structural strength. Furthermore, the automatic drive of the stopper using inertial force simplifies the structure, facilitating weight reduction and cost savings.

[0009] In one or more embodiments of the seat, it further includes a single angle adjuster for adjusting the angle of the seat back; the seat has a first side and a second side opposite each other in the width direction; the backrest support includes a first side backrest support and a second side backrest support respectively located on the first side and the second side, the first side backrest support and the second side backrest support being capable of rotating synchronously relative to the base; and, the single angle adjuster is disposed on the first side, the stop device is disposed on the second side; the single adjuster is connected to the first side backrest support for adjusting the angle of the first side backrest support; the first contact portion is disposed on the second side backrest support, the second side backrest support is rotatably connected to the base about the first rotation center, and the stop device is used to block the rotation of the second side backrest support.

[0010] In one or more embodiments of the seat, the stop device includes a first limiting member and a second limiting member, the first limiting member being disposed on the backrest support, the second limiting member being disposed on the base frame, and the stop member rotating within a range between the first limiting member and the second limiting member; when the stop member abuts against the first limiting member, the second contact portion faces the first contact portion.

[0011] In one or more embodiments of the seat, the stop device further includes an elastic element disposed between the base and the stop, and applying an elastic force toward the stop toward the second limiting member.

[0012] In one or more embodiments of the seat, the stop device has a first state structure and a second state structure; the first state structure is configured such that the second contact portion remains in an initial position abutting against the second limiting member; the second state structure is configured such that the stop member rotates relative to the base under the action of inertial force, overcoming the elastic force applied by the elastic member, so that the second contact portion reaches the blocking position.

[0013] In one or more embodiments of the seat, the first contact portion is configured to securely connect to a pin of the backrest bracket, and the second contact portion is configured to mate with a notch of the pin.

[0014] In one or more embodiments of the seat, the second contact portion reaching the blocking position can prevent the backrest support from rotating backward.

[0015] In one or more embodiments of the seat, the stop device further includes a pivot and a bushing; the pivot is disposed on the base and passes through the stop; the bushing is disposed between the pivot and the stop.

[0016] According to a second aspect of this application, a stop device can be configured as the stop device of a seat as described in the first aspect, for limiting the movement of the seat back.

[0017] A means of transport according to a third aspect of this application includes a seat as described in the first aspect; the stop device of the seat is used to restrict the movement of the seat back in the event of a collision of the means of transport. Attached Figure Description

[0018] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein:

[0019] Figure 1 This is a structural schematic diagram of a seat according to one embodiment.

[0020] Figure 2 This is an exploded structural diagram of a seat according to one embodiment.

[0021] Figure 3 This is a schematic diagram of the structure of a seat in the first state when the stop device is in one embodiment.

[0022] Figure 4 This is a schematic diagram of the structure of the stop device in its first state according to an embodiment.

[0023] Figure 5 This is a schematic diagram of the structure of a seat in the second state when the stop device is in one embodiment.

[0024] Figure 6 This is a schematic diagram of the stop device in its second state according to one embodiment.

[0025] Figure label:

[0026] 1. Seat; 2. Vehicle;

[0027] 10. Stop device; 11. First contact part; 111. Pin; 12. Stopping element; 121. Second contact part; 1211. Notch; 13. First limiting element; 14. Second limiting element; 15. Elastic element; 16. Rotating shaft; 17. Bushing; 18. Elastic element mounting bracket;

[0028] 20. Matrix; 21. First side support; 22. Second side support;

[0029] 30. Backrest support; 31. First side backrest support; 32. Second side backrest support;

[0030] 40. Angle adjuster;

[0031] X1. First center of rotation; X2. Second center of rotation. Detailed Implementation

[0032] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.

[0033] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined. In the following description, the orientation or positional relationship indicated by terms such as "upper," "lower," "inner," "outer," "front," "rear," or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be construed as a limitation of the application. In this application, the terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance. In the following description, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly; for example, they can refer to fixed connections or movable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0034] It is understood that the stop device and seat provided in this application are particularly suitable for automobiles, but can also be applied to other applicable occasions, such as rail trains, ships, aircraft and other means of transportation, as well as applicable fixed places, such as meeting rooms, auditoriums, cinemas, etc., as long as the seat can use the stop device disclosed in the embodiments of this application, and is not limited thereto.

[0035] See Figures 1 to 6The seat 1 shown includes a stop device 10, a base 20, and a backrest support 30. The base 20, as described here, refers to the structure that provides the mounting positions for the stop device 10 and the backrest support 30; generally, the base 20 can be configured as a seat cushion support for the seat 1, or as a connecting bracket disposed between the backrest support 30 and the seat cushion support, etc., and is not limited thereto; the backrest support 30 is rotatably connected to the base 20 around a first rotation center X1; the stop device 10 includes: a first contact portion 11 disposed on the backrest support 30; a stop member 12 rotatably connected to the base 20 around a second rotation center X2, and provided with a second contact portion 121; the stop member 12 can rotate relative to the base 20 under the action of inertial force, causing the second contact portion 121 to reach a blocking position; when the first contact portion 11 and the second contact portion 121 abut at the blocking position, the stop member 12 prevents the backrest support 30 from rotating. Specifically, the stop device 10 can be configured such that the stop member 12 can move to the blocking position under the action of inertial force of a certain degree and direction, and the blocking position is located in the activity path of the first contact part 11; when the stop member 12 and the backrest bracket 30 rotate relative to the base 20, the first contact part 11 and the second contact part 121 can abut at the blocking position, so that the stop member 12, the base 20 and the backrest bracket 30 form a triangular support structure.

[0036] When the seat 1 and the vehicle 2 containing it collide, such as in a rear-end collision of a car, the stop 12 automatically reaches the blocking position under the action of inertial force. The backrest support 30 may rotate due to loads such as impacts and pressures from the occupant's body. When the first contact portion 11 and the second contact portion 121 abut at the blocking position, the contact point of the first contact portion 11 and the second contact portion 121, the first rotation center X1 and the second rotation center X2 form a triangular structure, which enables the stop 12 to prevent the rotation of the backrest support 30 and improve the structural strength of the seat back. Furthermore, the automatic drive of the stop 12 by inertial force simplifies the structure, which is beneficial for weight reduction and cost savings.

[0037] like Figure 1 , Figure 2 As shown, in some embodiments, the seat back also includes a single angle adjuster 40 for adjusting the angle of the seat back. It can be understood that the seat 1 has opposing first and second sides in the width direction; for example... Figure 1 , Figure 2As shown, the first side and the second side are located on the left and right sides of the figure, respectively. The backrest support 30 includes a first-side backrest support 31 and a second-side backrest support 32 located on the first and second sides, respectively. The first-side backrest support 31 and the second-side backrest support 32 can rotate synchronously relative to the base 20. For example, the first-side backrest support 31 and the second-side backrest support 32 are fixedly connected as one unit. Furthermore, a single angle adjuster 40 is provided on the first side, and a stop device 10 is provided on the second side. The single angle adjuster 40 is connected to the first-side backrest support 31 and is used to rotate and adjust the angle of the first-side backrest support 31. The first-side backrest support 31 can drive the second-side backrest support 32 so that the second-side backrest support 32 is adjusted synchronously. A first contact portion 11 is provided on the second-side backrest support 32. The second-side backrest support 32 is rotatably connected to the base 20 around a first rotation center X1. The stop device 10 is used to prevent the second-side backrest support 32 from rotating. The angle adjuster 40 can be a stepped or stepless angle adjuster, or a manual or electric angle adjuster, etc., and is not limited thereto. Generally, the base 20 can be configured as a first side bracket 21 and a second side bracket 22 distributed on both sides along the width direction of the seat 1. The angle adjuster 40 and the first side backrest bracket 31 are disposed on the first side bracket 21, and the stop device 10 and the second side backrest bracket 32 ​​are disposed on the second side bracket 22.

[0038] The seat 1 in the comparative scheme is usually equipped with an adjuster on both sides. In other words, two adjusters are used to connect the backrest brackets on both sides respectively. This application, however, only sets an adjuster 40 on one side and a stop device 10 on the other side. While realizing the adjustment of the seat back angle, it helps to ensure the structural strength of the seat back on the side without the adjuster 40 in the event of a collision. In addition, the stop device 10 has a simple structure, is lighter and cheaper than the adjuster 40. Therefore, compared with the scheme of setting an adjuster on both sides, it can also reduce weight and save costs.

[0039] like Figure 4 , Figure 6 As shown, in some embodiments, the stop device 10 includes a first limiting member 13 and a second limiting member 14. The first limiting member 13 is disposed on the backrest bracket 30, and the second limiting member 14 is disposed on the base 20. The stop member 12 rotates within the range between the first limiting member 13 and the second limiting member 14. Figure 6As shown, when the stop member 12 abuts against the first limiting member 13, the second contact portion 121 faces the first contact portion 11. Since the first contact portion 11 and the second contact portion 121 may only be in the blocking position for a short time, if the first contact portion 11 and / or the second contact portion 121 exceeds the blocking position, an effective stopping effect cannot be produced. The design of the first limiting member 13 allows the second contact portion 121 to be limited to a position facing the first contact portion 11 without excessive rotation, which facilitates the abutment of the first contact portion 11 and the second contact portion 121 at the blocking position. It can be understood that in some embodiments, by setting a larger first contact portion 11 and / or the second contact portion 121, the blocking position can have a larger area range. When at least a portion of the first contact portion 11 and at least a portion of the second contact portion 121 abuts, an effective stopping effect can be achieved, and / or, the second contact portion 121 can be kept in the blocking position to achieve an effective stopping effect, without limitation.

[0040] like Figure 4 , Figure 6 As shown, in some embodiments, the stop device 10 further includes an elastic element 15, such as a tension spring; the elastic element 15 is disposed between the base 20 and the stop member 12; for example, the base 20 is provided with an elastic element mounting bracket 18, and the stop member 12 and the elastic element mounting bracket 18 respectively provide connection positions for mounting the elastic element 15. Furthermore, the elastic element 15 applies an elastic force to the stop member 12 toward the second limiting member 14. This design ensures that the stop 12 can only rotate relative to the base 20 when the inertial force on the stop 12 overcomes the elastic force provided by the elastic member 15 (in some cases, this also includes overcoming the weight of the stop). Therefore, by appropriately setting the elastic member 15, the stop 12 can only rotate when the inertial force on it reaches a predetermined level in the event of a collision or the like, thus preventing it from moving during normal use of the seat 1 and the vehicle 2, thereby reducing noise, etc. Furthermore, the elastic member 15 keeps the stop 12 in the initial position abutting against the second limiting member 14, preventing it from affecting the normal angle adjustment of the seat back.

[0041] like Figures 4 to 6 As shown, in some embodiments, the stop device 10 is provided with a first state structure and a second state structure; such as Figure 4 As shown, the first state structure is configured such that the second contact portion 121 is held in the initial position abutting against the second limiting member 14 under the elastic force provided by the elastic member 15; as Figure 6As shown, the second state structure is configured such that the stop member 12 rotates relative to the base 20 under the action of inertial force, overcoming the elastic force applied by the elastic member 15, so that the second contact portion 121 reaches the blocking position. When the seat 1 and the vehicle 2 are in normal use, the stop device 10 is basically in the first state structure. When the seat 1 and the vehicle 2 containing it are involved in a collision of a certain degree, the stop member 12 is subjected to inertial force and changes from the first state structure to the second state structure. At the same time, the seat back may bear heavy loads. For example, when the seat 1 and the vehicle 2 are involved in a rear-end collision (rear impact), the load formed by the occupant impacting and pressing against the seat back under the action of inertial force may cause the backrest support 30 to fail in rotational constraint and cause undesirable rotation. The stop member 12 in the second state structure can provide a stop limit for the backrest support 30, effectively preventing such rotation from occurring. If the seat back does not fail, the stop member 12 can return to the initial position under the action of elastic force, so that the stop device 10 changes from the second state structure to the first state structure.

[0042] like Figure 4 , Figure 6 As shown, in some embodiments, the first contact portion 11 is configured to fix the pin 111 of the backrest bracket 30, and the second contact portion 121 is configured to fit the notch 1211 of the pin 111; the cooperation of the pin 111 and the notch 1211 helps to avoid separation after contact.

[0043] like Figure 5 , Figure 6 As shown, in some embodiments, the second contact portion 121, upon reaching the blocking position, can prevent the backrest support 30 from rotating backward; specifically, when the second contact portion 121 reaches the blocking position, the second contact portion 121 is located behind the first contact portion 11. In the event of a rear-end collision between the seat 1 and the vehicle 2, the occupant will impact and press against the seat back under the action of inertial force, thereby applying a rearward load to the seat back. The design of preventing the backrest support 30 from rotating backward helps to avoid the seat back from flipping backward due to the failure of the rotational constraint of the backrest support 30 during a rear-end collision.

[0044] like Figure 2 As shown, in one or more embodiments of the seat 1, the stop device 10 further includes a rotating shaft 16 and a bushing 17; the rotating shaft 16 is disposed on the base 20 and passes through the stop member 12; the bushing 17 is disposed between the rotating shaft 16 and the stop member 12; the bushing 17 is used to reduce the frictional resistance of the stop member 12 and reduce wear, etc., to ensure the functional reliability of the stop device 10.

[0045] This application also provides a stop device 10, which can be configured as the stop device 10 described above for limiting the rotation of the seat back, which will not be described in detail here.

[0046] like Figure 1 As shown, this application also provides a vehicle 2, such as an automobile, which includes a seat 1; the stop device 10 of the seat 1 is used to limit the movement of the seat back when the vehicle 2 is involved in a collision, which will not be described in detail here.

[0047] In summary, the beneficial technical effects of this application include, but are not limited to, at least one of the following:

[0048] When a seat and the vehicle containing it collide, the backrest support may rotate unintentionally due to impacts or pressure from the occupant's body. The stopper automatically reaches the blocking position under the inertial force generated by the collision. When the first and second contact parts abut at the blocking position, the contact points of the first and second contact parts, the first rotation center, and the second rotation center form a triangular structure. This allows the stopper to prevent the rotation of the backrest support and improve structural strength. Furthermore, automatically driving the stopper using inertial force simplifies the structure, reducing weight and saving costs.

[0049] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.

Claims

1. A seat (1), characterized in that, The backrest includes a stop device (10), a base (20), and a backrest support (30), the backrest support (30) being rotatably connected to the base (20) about a first rotation center (X1); the stop device (10) includes: The first contact part (11) is disposed on the backrest bracket (30). The stop (12) is rotatably connected to the base (20) around the second rotation center (X2) and is provided with a second contact portion (121). The stop (12) can rotate relative to the base (20) under the action of inertial force, so that the second contact part (121) reaches the blocking position; when the first contact part (11) and the second contact part (121) abut at the blocking position, the stop (12) blocks the backrest bracket (30) from rotating.

2. The seat (1) according to claim 1, characterized in that, It also includes a single angle adjuster (40) for adjusting the angle of the seat back; the seat (1) has a first side and a second side opposite each other in the width direction; the backrest support (30) includes a first side backrest support (31) and a second side backrest support (32) located on the first side and the second side respectively, the first side backrest support (31) and the second side backrest support (32) being able to rotate synchronously relative to the base (20); and, The single angle adjuster (40) is disposed on the first side, and the stop device (10) is disposed on the second side; the single angle adjuster (40) is connected to the first side backrest bracket (31) and is used to adjust the angle of the first side backrest bracket (31); the first contact part (11) is disposed on the second side backrest bracket (32), the second side backrest bracket (32) is rotatably connected to the base (20) around the first rotation center (X1), and the stop device (10) is used to block the rotation of the second side backrest bracket (32).

3. The seat (1) according to claim 1, characterized in that, The stop device (10) includes a first limiting member (13) and a second limiting member (14). The first limiting member (13) is disposed on the backrest bracket (30), and the second limiting member (14) is disposed on the base (20). The stop member (12) rotates within the range between the first limiting member (13) and the second limiting member (14). When the stop member (12) abuts against the first limiting member (13), the second contact portion (121) faces the first contact portion (11).

4. The seat (1) according to claim 3, characterized in that, The stop device (10) further includes an elastic element (15); the elastic element (15) is disposed between the base (20) and the stop (12), and applies an elastic force toward the second limiting member (14) to the stop (12).

5. The seat (1) according to claim 4, characterized in that, The stop device (10) is provided with a first state structure and a second state structure; The first state structure is configured such that the second contact portion (121) remains in the initial position abutting against the second limiting member (14); The second state structure is configured such that the stop (12) rotates relative to the base (20) under the action of inertial force, overcoming the elastic force applied by the elastic member (15), so that the second contact portion (121) reaches the blocking position.

6. The seat (1) according to claim 1, characterized in that, The first contact portion (11) is configured to fix the pin (111) of the backrest bracket (30) and the second contact portion (121) is configured to adapt to the notch (1211) of the pin (111).

7. The seat (1) according to claim 1, characterized in that, When the second contact portion (121) reaches the blocking position, it can prevent the backrest bracket (30) from rotating backward.

8. The seat (1) according to claim 1, characterized in that, The stop device (10) further includes a rotating shaft (16) and a bushing (17); the rotating shaft (16) is disposed on the base (20) and passes through the stop member (12); the bushing (17) is disposed between the rotating shaft (16) and the stop member (12).

9. A stop device (10), characterized in that, The stop device (10) can be configured as the seat (1) as described in any one of claims 1 to 8 for limiting the movement of the seat back.

10. A means of transportation (2), characterized in that, Includes a seat (1) as claimed in any one of claims 1 to 8; the stop device (10) of the seat (1) is used to restrict the movement of the seat back when the vehicle (2) is involved in a collision.

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