Seat assembly and vehicle having same

Abstract

This invention discloses a seat assembly and a vehicle having the same. The seat assembly includes: a seat body, comprising a seat basin and a backrest, the backrest being rotatably connected to the rear end of the seat basin via a pivot; and an adjustment mechanism, comprising a drive assembly and a strap, the drive assembly being disposed on the seat basin, one end of the strap being fixed to the backrest, and the other end of the strap extending to be connected to the drive assembly, the drive assembly driving the backrest to rotate relative to the seat basin via the strap. According to the seat assembly of this invention, by providing the drive assembly and the strap, the angle of the seat backrest can be adjusted, allowing the angle between the backrest and the seat basin to be quickly reduced in the event of a collision, enabling the vehicle's restraint system to act on the occupants, thereby protecting their safety and reducing injuries. Simultaneously, it also reduces the force required to adjust the angle, lowers the probability of damage to the adjustment mechanism, improves the reliability of the adjustment mechanism, and thus better protects the occupants.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a seat assembly and a vehicle having the same. Background Technology

[0002] In related technologies, to improve ride comfort, the reclining angle of the seat back is often greater than the designed 25° during vehicle operation. However, when the seat back angle is greater than 25° (the occupant is in a reclining position) and a collision occurs, existing traditional restraint systems such as airbags and seat belts cannot provide good protection for the occupants. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a seat assembly that allows for adjustment of the seat back angle. In the event of a collision, this assembly can quickly reduce the angle between the seat back and the seat pan, enabling the vehicle's restraint system to act on the occupants, thereby protecting their safety and reducing injuries. Simultaneously, it reduces the force required to adjust the angle, lowers the probability of damage to the adjustment mechanism, and improves the reliability of the adjustment mechanism, thus providing better protection for the occupants.

[0004] The present invention also proposes a vehicle having the above-described seat assembly.

[0005] According to a first aspect of the present invention, a seat assembly includes: a seat body, the seat body including a seat basin and a backrest, the backrest being rotatably connected to the rear end of the seat basin via a pivot; and an adjustment mechanism including a drive assembly and a pull strap, the drive assembly being disposed on the seat basin, one end of the pull strap being fixed to the backrest, the other end of the pull strap extending to be connected to the drive assembly, the drive assembly driving the backrest to rotate relative to the seat basin via the pull strap.

[0006] According to the seat assembly of the present invention, by providing a drive assembly and a pull strap, the angle of the seat back can be adjusted, so that in the event of a collision, the angle between the backrest and the seat can be quickly reduced, allowing the vehicle's restraint system to act on the occupants, thereby protecting their safety and reducing injuries. At the same time, using the pull strap and drive assembly to adjust the seat back angle also reduces the force required for adjustment, lowers the probability of damage to the adjustment mechanism, improves the reliability of the adjustment mechanism, and thus better protects the occupants.

[0007] According to some embodiments of the present invention, the drive assembly includes a piston cylinder and a piston rod, the piston cylinder being disposed on the seat, the piston rod being movably disposed within the piston cylinder, and the pull belt being fixedly connected to the piston rod.

[0008] According to some embodiments of the present invention, the piston rod divides the internal space of the piston cylinder into a first chamber and a second chamber, and the drive assembly further includes a gas generator disposed on the piston cylinder, the gas generator being configured to charge the first chamber with gas upon ignition to drive the piston rod to move.

[0009] According to some embodiments of the present invention, the adjusting mechanism further includes: a connector, one end of which is fixed to the piston rod and the other end of which extends out of the piston cylinder and is connected to the pull belt, the connector being a connecting rod or a connecting rope.

[0010] According to some embodiments of the present invention, the other end of the connector is formed with an annular connecting end, the inner side of the connecting end defines a connecting hole, and the pull strap passes through the connecting hole and is fixed to the connecting end.

[0011] According to some embodiments of the present invention, the adjustment mechanism further includes: a guide member disposed on the seat basin, the guide member having a guide hole, and the other end of the pull strap passing through the guide hole and connected to the connector.

[0012] According to some embodiments of the present invention, the adjustment mechanism further includes: a pull strap retractor, the pull strap retractor being disposed on the backrest, the pull strap retractor including: a spool and a locking structure, the spool being rotatable, one end of the pull strap being wound around the spool, the pull strap retractor having an adaptive state and a fixed state, in the fixed state, the locking structure locking the spool to restrict the rotation of the spool, in the adaptive state, the locking structure releasing the spool, the spool being able to retract and unwind the one end of the pull strap.

[0013] According to some embodiments of the present invention, the adjustment mechanism includes multiple mechanisms, which are arranged at intervals on the left and right sides.

[0014] According to some embodiments of the present invention, the backrest is rotatable relative to the seat between an initial position and a plurality of reclining positions located behind the initial position, and the adjustment mechanism is configured to drive the backrest to rotate toward the initial position.

[0015] According to some embodiments of the present invention, it further includes: a collision sensor and a controller, wherein both the collision sensor and the adjustment mechanism are connected to the controller, and when the collision sensor detects a collision of the vehicle, the controller sends a start command to the adjustment mechanism.

[0016] According to some embodiments of the present invention, the seat assembly further includes: a locking mechanism connected to the backrest and / or the pivot for locking the backrest; the locking mechanism is connected to the controller; when the collision sensor detects a collision of the vehicle, the controller controls the locking mechanism to unlock the backrest.

[0017] The vehicle according to the second aspect of the invention includes a seat assembly according to the first aspect of the invention.

[0018] According to the present invention, the overall performance of the vehicle is improved by providing the seat assembly described in the first aspect.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a seat assembly according to an embodiment of the present invention;

[0021] Figure 2 This is a partial schematic diagram of a seat assembly according to an embodiment of the present invention;

[0022] Figure 3 This is a partial schematic diagram of the seat assembly according to an embodiment of the present invention from another angle;

[0023] Figure 4 This is a partial schematic diagram of the seat assembly according to an embodiment of the present invention from another angle;

[0024] Figure 5 This is a partial schematic diagram of the seat assembly according to an embodiment of the present invention from another angle.

[0025] Figure label:

[0026] 100. Seat assembly;

[0027] 10. Seat body; 11. Backrest; 12. Seat tray;

[0028] 20. Adjustment mechanism; 21. Drive assembly; 211. Piston cylinder; 212. Piston rod; 213. Gas generator; 22. Belt; 23. Connector; 24. Guide; 25. Belt retractor;

[0029] 30. Locking mechanism; 40. Rotating shaft. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] The following is for reference. Figures 1-5 A seat assembly 100 according to an embodiment of the first aspect of the present invention is described.

[0032] like Figure 1 and Figure 4 As shown, a seat assembly 100 according to a first aspect embodiment of the present invention includes: a seat body 10 and an adjustment mechanism 20. The seat body 10 includes a seat basin 12 and a backrest 11. The backrest 11 is rotatably connected to the rear end of the seat basin 12 via a pivot 40. The adjustment mechanism 20 includes a drive assembly 21 and a pull strap 22. The drive assembly 21 is disposed on the seat basin 12. One end of the pull strap 22 is fixed to the backrest 11, and the other end of the pull strap 22 extends to be connected to the drive assembly 21. The drive assembly 21 drives the backrest 11 to rotate relative to the seat basin 12 via the pull strap 22.

[0033] Specifically, the main body 10 of the seat is primarily a component for occupants to sit on. The backrest 11 is rotatable relative to the seat basin 12, and the backrest 11 can be adjusted according to the customer's comfort needs, such as switching between sitting and reclining positions, thereby improving the occupant's comfort and experience.

[0034] The adjustment mechanism 20 is used to reduce the angle between the backrest 11 and the seat basin 12. In the event of a vehicle collision, it can quickly pull the seat backrest 11 towards the seat basin 12, allowing the vehicle's restraint system (such as airbags) to act on the occupants, thereby protecting their safety and reducing injuries. The drive assembly 21 primarily provides driving force to drive the pull strap 22 to rotate the backrest 11 towards the seat basin 12. The pull strap 22 connects the backrest 11 and the drive assembly 21, enabling the drive assembly 21 to drive the backrest 11 to rotate relative to the seat basin 12.

[0035] When a vehicle collision occurs, the drive assembly 21 exerts a force on the pull strap 22, causing the pull strap 22 to tighten. At the same time, the pull strap 22 exerts a pulling force on the backrest 11 towards the seat basin 12, driving the backrest 11 to rotate in the direction of the seat basin 12. At this time, the seat backrest 11 drives the rotating shaft 40 to rotate forward and downward. The rotating shaft 40 forms the rotation center of the backrest 11. The distance between the connection point of the pull strap 22 and the backrest 11 and the rotating shaft 40 is equivalent to the lever arm. Thus, the pull strap 22 drives the backrest 11 to rotate, which is equivalent to applying torque to the rotating shaft 40. This reduces the force required to adjust the angle. In addition, the structure of the pull strap 22 and the drive assembly 21 is relatively simple, and the working process is simple. Therefore, the probability of damage to the adjustment mechanism 20 is small, and the reliability is high.

[0036] When a collision occurs, the drive assembly 21 can drive the strap 22 to tighten towards the seat basin 12, thereby pulling the backrest 11 to rotate towards the seat basin 12. This can quickly pull the seat backrest 11 towards the seat basin 12, reducing the angle between the backrest 11 and the seat basin 12, allowing the vehicle's restraint system to act on the occupants, thereby protecting their safety and reducing the damage they suffer.

[0037] According to the embodiment of the present invention, the seat assembly 100, by providing the drive component 21 and the pull strap 22, can realize the angle adjustment of the seat back 11, so that when the vehicle is involved in a collision, the angle between the backrest 11 and the seat 12 can be quickly reduced, so that the vehicle's restraint system can act on the occupants, thereby protecting the safety of the occupants and reducing the injuries suffered by the occupants. At the same time, by using the pull strap 22 and the drive component 21 to realize the angle adjustment of the seat back 11, the force required to adjust the angle can also be reduced, the probability of damage to the adjustment mechanism 20 can be reduced, the reliability of the adjustment mechanism 20 can be improved, and thus better protect the occupants.

[0038] According to some embodiments of the present invention, such as Figure 4 As shown, the drive assembly 21 includes a piston cylinder 211 and a piston rod 212. The piston cylinder 211 is disposed on the seat basin 12, and the piston rod 212 is movably disposed within the piston cylinder 211. The pull strap 22 is fixedly connected to the piston rod 212. The piston rod 212, being fixedly connected to the pull strap, can drive the seat back 11 towards the seat basin 12 by moving the pull strap 22. The piston cylinder 211 can limit the direction of movement of the piston rod 212, effectively preventing the piston rod 212 from deviating during movement, thus ensuring that the seat back 11 is pulled towards the seat basin 12, thereby adjusting the angle of the seat back 11.

[0039] According to some embodiments of the present invention, such as Figure 4As shown, the piston rod 212 divides the internal space of the piston cylinder 211 into a first chamber and a second chamber. The drive assembly 21 also includes a gas generator 213, which is disposed on the piston cylinder 211. The gas generator 213 is configured to charge the first chamber with gas upon ignition to move the piston rod 212. The gas generator 213 releases gas in a short time with high energy, thus quickly pushing the piston rod 212 forward, reducing the reaction time for adjusting the seat backrest 11 angle, and thus better protecting the occupant.

[0040] Furthermore, the piston cylinder 211 is located on the lower side of the seat 12 and extends in the front and back direction, the piston rod 212 is movably connected to the piston cylinder 211 in the front and back direction, and the pull belt 22 is connected to the piston rod 212.

[0041] For example Figure 4 As shown, the piston cylinder 211 is cylindrical, and a circular tube extending upward and backward is connected to the rear end of the piston cylinder 211. The gas generator 213 is arranged inside the circular tube. In this way, interference between the gas generator 213 and the piston rod 212 can be effectively avoided, thereby ensuring the normal operation of the piston rod 212.

[0042] Furthermore, the drive assembly 21 also includes a piston cylinder fixing plate, which is fixedly connected to the piston cylinder 211, and the piston cylinder 211 is fixed to the seat support through the fixing plate.

[0043] According to some embodiments of the present invention, such as Figure 4 As shown, the adjusting mechanism 20 further includes a connector 23, one end of which is fixed to the piston rod 212 and the other end extends out of the piston cylinder 211 and is connected to the pull strap 22. The connector 23 can be a connecting rod or a connecting rope. The pull strap 22 is connected to the piston rod 212 via the connector 23, which increases the ease of connection between the pull strap 22 and the piston rod 212.

[0044] According to some embodiments of the present invention, such as Figure 4 As shown, the other end of the connector 23 has an annular connecting end, and the inner side of the connecting end defines a connecting hole. The pull strap 22 passes through the connecting hole and is fixed to the connecting end. This facilitates the fixed connection between the pull strap 22 and the connector 23, increasing the ease of connection of the pull strap 22.

[0045] According to some embodiments of the present invention, the adjustment mechanism 20 further includes a guide member 24, which is disposed on the seat basin 12 and has a guide hole. The other end of the pull strap 22 passes through the guide hole and is connected to the connector 23. The guide member 24 can guide the pull strap 22 and limit its direction of movement, thereby ensuring that the seat back 11 is pulled towards the seat basin 12, thus adjusting the angle of the seat back 11.

[0046] According to some embodiments of the present invention, such as Figure 5 As shown, the adjustment mechanism 20 also includes a belt retractor 25, which is disposed on the backrest 11. The belt retractor 25 includes a spool and a locking structure. The spool is rotatable, and one end of the belt 22 is wound around the spool. The belt retractor 25 has an adaptive state and a fixed state. In the fixed state, the locking structure locks the spool to limit its rotation. In the adaptive state, the locking structure releases the spool, and the spool can retract and unwind one end of the belt 22. When the backrest 11 is adjusted backward, the locking structure releases the roller, which then unwinds the pull strap 22, allowing the backrest 11 to be adjusted backward without obstruction, thus improving occupant comfort. When the backrest 11 is adjusted forward, the roller rewinds the pull strap 22 according to the seat's position, storing any excess pull strap 22 on the roller, ensuring the neat appearance of the seat assembly 100. When the seat is in the use position, the locking structure locks the roller to restrict its rotation, thereby restricting the rewinding and unwinding of the pull strap 22. This ensures that the pull strap 22 does not release when the piston rod 212 drives it, guaranteeing the normal operation of the adjustment mechanism 20.

[0047] According to some embodiments of the present invention, the adjustment mechanism 20 includes multiple adjustment mechanisms 20 arranged at intervals from left to right. For example, the number of adjustment mechanisms 20 can be two, three or more. Multiple adjustment mechanisms 20 facilitate rapid adjustment of the seat back angle, improve response speed, and enable the seat back 11 to quickly adjust to a normal sitting position in the event of a collision, allowing the restraint system to function and thus better protect the occupant.

[0048] According to some embodiments of the invention, the backrest 11 is rotatable relative to the seat 12 between an initial position and a plurality of reclining positions (e.g., semi-reclined, fully reclined) located behind the initial position, and the adjustment mechanism 20 is configured to drive the backrest 11 to rotate toward the initial position.

[0049] Specifically, when the backrest 11 is in its initial position relative to the seat 12, the occupant is in a normal sitting posture. In the event of a frontal or side collision, the restraint systems such as seat belts, airbags, and curtain airbags can play a protective role. In the event of a rear collision, the seat backrest 11 and headrest can fully play a protective role.

[0050] The backrest 11 is rotatable relative to the seat 12 between an initial position and multiple reclining positions behind the initial position, allowing the seat backrest 11 to be adjusted according to the comfort needs of the occupant, thereby increasing the comfort of the seat; the adjustment mechanism 20 is configured to drive the backrest 11 to rotate toward the initial position, so that the seat backrest 11 can be adjusted to a position where the restraint system can play a protective role in the event of a vehicle collision, thereby better protecting the occupant and reducing the injury suffered by the occupant in a collision.

[0051] According to some embodiments of the present invention, the seat assembly 100 further includes a collision sensor and a controller. Both the collision sensor and the adjustment mechanism 20 are connected to the controller. When the collision sensor detects a collision, the controller activates the adjustment mechanism 20. The controller is communicatively connected to the collision sensor and the adjustment mechanism 20, enabling the adjustment mechanism 20 to be activated based on collision information, thereby automatically adjusting the angle of the seat back 11 to ensure the safety of occupants in abnormal sitting positions.

[0052] Specifically, the collision sensor can be used to detect and transmit collision signals of the vehicle; the controller can be used to receive and process the collision signals detected by the collision sensor and send working instructions to the adjustment mechanism 20; the adjustment mechanism 20 can receive the instructions sent by the controller and start the adjustment work.

[0053] When a vehicle collides, the collision sensor detects the collision signal and transmits it to the controller. The controller receives the signal and analyzes it to determine whether the car has been hit. When the collision signal transmitted to the controller reaches the preset conditions set by the controller, the controller sends a command to the adjustment mechanism 20 to ignite the gas generator 213. The gas pushes the piston rod 212 to quickly tighten the strap 22, thereby quickly adjusting the angle of the seat back 11.

[0054] Furthermore, the seat assembly 100 also includes a radar detector, which is more sensitive than a collision sensor and can identify potential collisions in advance, thereby enabling earlier protective actions, further shortening the response time of adjusting the seat back 11, and further improving the protection performance for occupants.

[0055] According to some embodiments of the present invention, the seat assembly 100 further includes a locking mechanism 30, which is connected to the backrest 11 and / or the pivot 40 for locking the backrest 11. The locking mechanism 30 is connected to a controller, and when a collision sensor detects a vehicle collision, the controller controls the locking mechanism 30 to unlock the backrest 11. The locking mechanism 30 can be used to lock the backrest 11, keeping the seat backrest 11 and its components in the usable position, thereby ensuring the safety of the seat. Simultaneously, the locking mechanism 30 is connected to the controller, and when a vehicle collision occurs, the controller can control the locking mechanism to unlock the backrest 11, allowing the backrest 11 to rotate relative to the seat cushion 12, thereby enabling angle adjustment of the seat backrest 11 and allowing it to return to a normal sitting position. This allows the restraint system to protect the occupant and improves occupant safety.

[0056] Specifically, the locking mechanism 30 can be connected to the backrest 11 to lock the backrest 11, or it can be interlocked with the rotating shaft 40 to lock the backrest 11, or it can be connected to both the backrest 11 and the rotating shaft 40 to lock the backrest 11.

[0057] When a vehicle collision occurs, the collision sensor detects the collision signal and transmits it to the controller. The controller receives the signal and analyzes it to determine whether the vehicle has been impacted. When the collision signal transmitted to the controller reaches the preset conditions set by the controller, the controller simultaneously sends commands to the adjustment mechanism 20 and the locking mechanism 30, causing the locking mechanism 30 to unlock and the gas generator 213 to ignite. The gas quickly pushes the piston rod 212 to tighten the strap 22, thereby quickly adjusting the angle of the seat back 11. When the seat back 11 reaches the preset position, the locking mechanism 30 locks the seat back 11, stopping the seat back 11 from rotating.

[0058] Furthermore, when the collision sensor detects a collision, the locking structure of the strap retractor 25 switches to a fixed state. This ensures that the strap 22 does not release when the piston rod 212 drives the strap 22 to move, thereby ensuring the tension of the strap 22 on the seat back 11 and thus adjusting the angle of the seat back 11.

[0059] Furthermore, the seat assembly 100 also includes a rotation spring, which is located on the pivot 40 and can control the rotational stiffness of the pivot 40, thereby cushioning the movement of the seat back 11 and improving the experience and comfort of the occupant when adjusting the angle of the seat back 11.

[0060] A vehicle according to a second aspect embodiment of the present invention includes a seat assembly 100 according to a first aspect embodiment of the present invention. By providing the seat assembly 100 of the first aspect embodiment, the overall performance of the vehicle is improved.

[0061] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat assembly, characterized in that, include: The seat body includes a seat basin and a backrest, and the backrest is rotatably connected to the rear end of the seat basin via a pivot. An adjustment mechanism is provided, comprising a drive assembly and a pull strap. The drive assembly is disposed on the seat basin, one end of the pull strap is fixed to the backrest, and the other end of the pull strap extends to be connected to the drive assembly. The drive assembly drives the backrest to rotate relative to the seat basin via the pull strap. The adjustment mechanism further includes a strap retractor, which is disposed on the backrest. The strap retractor has an adaptive state and a fixed state. In the fixed state, the strap retractor is adapted to restrict the retraction and extension of the strap. In the adaptive state, the backrest can be adjusted at an unobstructed angle. The strap retractor includes a roller and a locking structure. The roller is rotatable, and one end of the strap is wound around the roller. In the fixed state, the locking structure locks the roller to restrict its rotation. In the adaptive state, the locking structure releases the roller, and the roller can retract and unwind one end of the strap.

2. The seat assembly according to claim 1, characterized in that, The drive assembly includes a piston cylinder and a piston rod. The piston cylinder is disposed on the seat, the piston rod is movably disposed inside the piston cylinder, and the pull belt is fixedly connected to the piston rod.

3. The seat assembly according to claim 2, characterized in that, The piston rod divides the internal space of the piston cylinder into a first chamber and a second chamber. The drive assembly further includes a gas generator disposed on the piston cylinder and configured to fill the first chamber with gas upon ignition to drive the piston rod to move.

4. The seat assembly according to claim 2, characterized in that, The adjustment mechanism further includes a connector, one end of which is fixed to the piston rod and the other end extends out of the piston cylinder and is connected to the pull belt. The connector is a connecting rod or a connecting rope.

5. The seat assembly according to claim 4, characterized in that, The other end of the connector has an annular connecting end, and the inner side of the connecting end defines a connecting hole. The pull strap passes through the connecting hole and is fixed to the connecting end.

6. The seat assembly according to claim 4, characterized in that, The adjustment mechanism further includes a guide member disposed on the seat basin, the guide member having a guide hole, and the other end of the pull strap passing through the guide hole and connected to the connector.

7. The seat assembly according to any one of claims 1-6, characterized in that, The adjustment mechanism includes multiple mechanisms, which are arranged at intervals on the left and right sides.

8. The seat assembly according to any one of claims 1-6, characterized in that, Also includes: The system includes a collision sensor and a controller. Both the collision sensor and the adjustment mechanism are connected to the controller. When the collision sensor detects a vehicle collision, the controller sends a start command to the adjustment mechanism.

9. The seat assembly according to claim 8, characterized in that, Also includes: A locking mechanism is provided, which is connected to the backrest and / or the pivot for locking the backrest. The locking mechanism is also connected to the controller. When the collision sensor detects a vehicle collision, the controller controls the locking mechanism to unlock the backrest.

10. A vehicle, characterized in that, Includes the seat assembly according to any one of claims 1-9.

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