CN215850882U

CN215850882U - Seat prevents structure that leans forward and contains its car seat

Info

Publication number: CN215850882U
Application number: CN202120553896.1U
Authority: CN
Inventors: 陈宇; 黄东生; 张立凡
Original assignee: Guangzhou Gac Ullitec Auto Interiors R&d Co ltd
Current assignee: Guangzhou Gac Ullitec Auto Interiors R&d Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-02-18
Anticipated expiration: 2031-03-17

Abstract

The utility model provides a seat forward-leaning prevention structure, which comprises: the first seat body is provided with a first limiting part; the second seat body is arranged on the first seat body, the rear part of the second seat body can move up and down relative to the first seat body, and the rear part of the second seat body is provided with a second limiting part; the first limiting part is positioned above the second limiting part by a distance and laterally staggered with the second limiting part, a stress part which can be abutted or connected with the automobile safety belt is arranged on the second seat body, and the second limiting part can move to be vertically aligned with the first limiting part when the safety belt applies external force larger than a preset magnitude to the stress part; the utility model also provides an automobile seat comprising the seat forward-tilting prevention structure. The utility model can effectively improve the safety of the automobile seat, effectively improve the protection of passengers and reduce the casualty rate in traffic accidents.

Description

Seat prevents structure that leans forward and contains its car seat

Technical Field

The utility model relates to the technical field of automobiles, in particular to a seat structure and an automobile seat.

Background

At present, the security and the functional requirement of consumer to car seat are all higher and higher, and the back row of more and more car also begins to adopt independent seat, and the safety belt fixed point of these seats all arranges on the seat in order to improve the independence of seat, conveniently arranges more multifunctionally such as independently going up and down from this. In the seat with the lifting function, if the fixed points of the safety belt are all arranged on the seat, when the automobile is braked emergently or collided forwards, a passenger can rush forwards under the inertia effect, the seat can bear larger load and topple forwards, the casualty rate of the passenger can be improved, and the safety of the seat is poor.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve at least one of the problems occurring in the prior art, and an object of the present invention is to provide a seat forward tilting prevention structure capable of improving safety, and an automobile seat capable of improving protection of an occupant.

In order to achieve the purpose, the utility model adopts the technical scheme that:

there is provided a seat forward-lean prevention structure including:

the first seat body is provided with a first limiting part;

the second seat body is arranged on the first seat body, the rear part of the second seat body can move up and down relative to the first seat body, and the rear part of the second seat body is provided with a second limiting part;

the first limiting part is located above the second limiting part at a distance and laterally staggered with the second limiting part, a stress part capable of being abutted or connected with an automobile safety belt is arranged on the second seat body, and the second limiting part can move to be vertically aligned with the first limiting part when the safety belt applies an external force larger than a preset magnitude to the stress part.

Preferably, the second seat body can deform when the automobile safety belt exerts an external force larger than a predetermined magnitude on the force bearing portion so that the second limiting portion moves to be aligned with the first limiting portion up and down.

Preferably, the second seat body comprises two side connecting frames which are oppositely arranged at the left and right, the rear parts of the two side connecting frames are connected through a linkage rod, and the linkage rod is movably arranged on the first seat body up and down; the second limiting part and the stressed part are arranged on the side joint frame, and the side joint frame can deform when being subjected to external force which is applied by the automobile safety belt and is larger than a preset value, so that the second limiting part moves to be vertically aligned with the first limiting part.

Preferably, the second limiting parts are arranged on the two side connecting frames, the two first limiting parts are correspondingly arranged on the first seat body, and the two side connecting frames can be deformed to enable the second limiting parts to be respectively aligned with the first limiting parts up and down under the action of external force which is applied to the automobile safety belt and is larger than a preset value.

Preferably, when the side joint frame is acted by an external force which is applied by the safety belt and is larger than a preset value, the side joint frame can be bent and deformed towards the inner side so as to enable the second limiting part to move to be vertically aligned with the first limiting part.

Preferably, the device further comprises at least one swinging piece, the head of the swinging piece is pivoted on the first seat body, and the tail of the swinging piece is connected with the linkage rod.

Preferably, the side connection frame is provided with a connection hole matched with the linkage rod, the linkage rod penetrates through the connection hole and is connected with the side connection frame, the linkage rod is convexly provided with a positioning stop block, and the positioning stop block is abutted against the side wall of the side connection frame to limit the insertion depth of the linkage rod in the connection hole.

The utility model also provides an automobile seat which comprises a cushion, a backrest, an automobile safety belt and the seat anti-forward-tilting structure, wherein a first seat body of the seat anti-forward-tilting structure is used for being connected with an automobile body, the cushion and the backrest are arranged on a second seat body, a first connecting position used for being connected with the automobile safety belt is arranged on the first seat body or the second seat body, and a second connecting position used for being connected with the safety belt is arranged on the backrest.

Preferably, the first connecting position is arranged on the first seat body, the automobile safety belt is abutted against the second seat body, and the stress part is a part of the second seat body abutted against the automobile safety belt.

Optionally, the second connection position is disposed on the second seat, and the stressed portion is the second connection position.

The utility model has the beneficial effects that: the seat anti-forward-tilting structure of the utility model has the advantages that the external force applied to the stress part of the second seat body by the automobile safety belt is smaller than the preset magnitude in the normal state, the first limit part on the first seat body and the second limit part on the second seat body can be kept to be laterally staggered, when the second seat body moves up and down or swings to adjust the position relative to the first seat body, the first limit part and the second limit part cannot be abutted to influence the movement of the second seat body, the disassembly and assembly of the second seat body and the first seat body are convenient, when the automobile is emergently braked or collided, a passenger and the automobile seat can generate forward-thrust action under the action of inertia, the force applied to the automobile safety belt by the passenger is far larger than the force applied to the automobile safety belt under the normal condition, the automobile safety belt further applies the external force larger than the preset magnitude to the stress part of the second seat body, so that the second limit part moves to be aligned with the first limit part up and down, at the moment, along with the forward tilting of the second seat body, the second limiting part can be abutted against the first limiting part, so that the forward tilting angle of the automobile seat is limited, the passenger can be effectively prevented from being damaged due to the collision between the passenger and the automobile body caused by the forward tilting of the automobile seat, and the safety of the automobile seat can be effectively improved; the automobile seat provided by the utility model adopts the forward tilting prevention structure, so that the protection of passengers can be effectively improved, and the casualty rate in traffic accidents is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a block diagram of a preferred embodiment of a forward lean prevention structure of a seat in accordance with the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an exploded view of a preferred embodiment of the forward leaning prevention structure of the seat of the present invention;

FIG. 4 is a front sectional view of a preferred embodiment of a forward-leaning prevention structure of a seat in accordance with the present invention;

FIG. 5 is a partial enlarged view of portion B of FIG. 4;

fig. 6 is a schematic structural view of a first preferred embodiment of the vehicle seat of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a first seat body; 11. a first limiting part; 12. a floor support; 20. a second seat body; 22. a force receiving portion; 23. a side connection frame; 24. a linkage rod; 231. connecting holes; 241. positioning a stop block; 30. a swinging member; 41. a cushion; 42. a backrest; 43. a vehicle seat belt; 44. a first connection site; 45. a second connection bit; 46. a side member.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 5, a preferred embodiment of a forward-tipping prevention structure of a seat in the present invention includes: the first base 10, the first base 10 is provided with a first limiting part 11; the second seat body 20 is arranged on the first seat body 10, the rear part of the second seat body 20 can move up and down relative to the first seat body 10, and the rear part of the second seat body 20 is provided with a second limiting part 21; the first position-limiting part 11 is located above the second position-limiting part 21 by a distance and laterally staggered with the second position-limiting part 21, the second seat body 20 is provided with a stress part 22 which can be abutted or connected with the automobile safety belt 43, and the second position-limiting part 21 can move to be vertically aligned with the first position-limiting part 11 when the safety belt applies an external force larger than a preset magnitude to the stress part 22. In the anti-forward-tilting structure of the seat in the utility model, the external force applied by the automobile safety belt 43 to the stress part 22 of the second seat body 20 is smaller than the preset magnitude in the normal state, the first limit part 11 on the first seat body 10 and the second limit part 21 on the second seat body 20 can keep lateral staggering, when the second seat body 20 moves up and down or swings to adjust the position relative to the first seat body 10, the first limit part 11 and the second limit part 21 can not be abutted to influence the movement of the second seat body 20, and simultaneously, the second seat body 20 and the first seat body 10 are convenient to disassemble and assemble, when the automobile is emergently braked or collided forwards, the passenger and the automobile seat can generate forward-thrust action under the inertia effect, at the moment, the force applied by the passenger to the automobile safety belt 43 is far larger than the force applied by the automobile safety belt under the normal condition, the automobile safety belt 43 then applies the external force larger than the preset magnitude to the stress part 22 of the second seat body 20, the second limiting part 21 is enabled to move to be aligned with the first limiting part 11 up and down, and at the moment, along with the forward tilting of the second seat body 20, the second limiting part 21 can be abutted against the first limiting part 11, so that the forward tilting angle of the automobile seat is limited, the situation that a passenger collides with a vehicle body and is injured due to the fact that the automobile seat tilts forwards can be effectively prevented, and the safety of the automobile seat can be effectively improved.

The predetermined magnitude of the external force applied by the seatbelt 43 to the force receiving portion 22 in the present invention may be set by means of tests, calculations, etc., and the magnitude of the instantaneous force applied by the seatbelt 43 in the state where the vehicle is normally running and in the state where the vehicle is in an emergency stop is significantly different from each other.

The forward leaning prevention structure of the seat is preferably applied to a separate seat at the rear row of the automobile, and of course, the forward leaning prevention structure of the seat can also be applied to seats at the front row or other positions of the automobile or other types of automobile seats.

As a preferred embodiment of the forward leaning prevention structure of the seat in the utility model, the forward leaning prevention structure of the seat can also have the following additional technical characteristics:

in this embodiment, the second seat body 20 can deform when the force-bearing portion 22 is acted by the seatbelt 43 with an external force greater than a predetermined magnitude, so that the second position-limiting portion 21 moves to be aligned with the first position-limiting portion 11 up and down, which helps to simplify the forward-tilting prevention structure of the seat, and facilitates the manufacturing and assembly. In other embodiments, a movable member may be disposed on the second seat 20, the force-receiving portion 22 and the second position-limiting portion 21 are disposed on the movable member, the second position-limiting portion 21 and the first position-limiting portion 11 are maintained to be staggered in a normal state through an elastic member or a breakable connecting structure, when the force applied to the force-receiving portion 22 by the seat belt 43 is greater than a predetermined magnitude, the elastic member elastically deforms or the breakable connecting structure is broken along with the elastic member, so that the movable member moves or rotates relative to the second seat 20 to vertically align the second position-limiting portion 21 and the first position-limiting portion 11.

In this embodiment, the second seat 20 includes two side connecting frames 23 disposed opposite to each other in the left-right direction, the rear portions of the two side connecting frames 23 are connected by a linkage rod 24, and the linkage rod 24 is movably disposed on the first seat 10 in the up-down direction; the second limiting portion 21 and the stress portion 22 are arranged on the side connection frame 23, the side connection frame 23 can deform when external force larger than a preset value is applied by the automobile safety belt 43, so that the second limiting portion 21 can move to be aligned with the first limiting portion 11 up and down, the structure can provide more stable support for an automobile seat, the application of a front-leaning prevention structure of the seat is facilitated, and the structural strength of the side connection frame 23 is adjusted so that the side connection frame can deform under the action of the set external force. In other embodiments, the second seat 20 can also be a one-piece structure, and is not limited to this.

The two side connecting frames 23 are respectively provided with the second limiting parts 21, the first seat body 10 is correspondingly provided with the two first limiting parts 11, the two side connecting frames 23 can be deformed under the action of external force which is applied by the automobile safety belt 43 and is larger than the preset magnitude to enable the second limiting parts 21 to be respectively aligned with the first limiting parts 11 up and down, so that under the condition of emergency braking of the vehicle, the two second limiting parts 21 can be respectively abutted against the two first limiting parts 11 to limit forward tilting of the second seat body 20, the stress on the second seat body 20 is more uniform, the second seat body 20 can be prevented from toppling towards one side, the stopping force on the second seat body 20 is also larger, and the safety and the reliability are higher.

In this embodiment, when the side frame 23 receives an external force applied by the seat belt and greater than a predetermined magnitude, the side frame 23 can bend and deform inward to move the second limiting portion 21 to be aligned with the first limiting portion 11 up and down, so as to adapt to the connection structure of the seat belt 43, and meanwhile, the side frame 23 can be prevented from being exposed outward when being bent due to a force, so that the side frame 23 is prevented from injuring the passenger.

The present embodiment further includes at least one swinging member 30, the head of the swinging member 30 is pivoted on the first seat 10, and the tail is connected with the linkage rod 24, so that when the swinging member 30 swings around the head thereof, the tail of the swinging member 30 can drive the rear portion of the second seat 20 to move up and down through the linkage rod 24, and the present embodiment has a simple and reliable structure, and is convenient for manufacturing and assembling. In application, the swinging member 30 can be connected with a corresponding control device or a driving device, and the automobile seat can realize adjusting functions such as lifting, inclination angle adjustment and the like by driving the swinging member 30 to swing in use.

The connecting holes 231 matched with the linkage rods 24 are formed in the side connection frame 23, the linkage rods 24 penetrate through the connecting holes 231 and are connected with the side connection frame 23, the linkage rods 24 are convexly provided with the positioning stop blocks 241, the side walls of the positioning stop blocks 241 and the side connection frame 23 are abutted to limit the insertion depth of the linkage rods 24 in the connecting holes 231, assembly is facilitated, meanwhile, the firmness of the connection of the side connection frame 23 and the linkage rods 24 can be improved, and the structural strength and the bearing capacity of the anti-forward structure of the seat are improved.

In this embodiment, the first position-limiting portion 11 is a position-limiting convex plate formed by bending the first seat 10, and the second position-limiting portion 21 is a transverse plate on the second seat 20, and only a small portion of the existing seat structure needs to be modified, which is convenient for popularization and application. In other embodiments, the shapes and the forming manners of the first limiting portion 11 and the second limiting portion 21 can be flexibly adjusted according to the needs, and are not limited thereto.

In this embodiment, the first fastening structure 10 includes two floor brackets 12 corresponding to the second fastening structure 20, and in other embodiments, the first fastening structure 10 may also be an integral structure or other suitable structures, which are not continued here.

The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.

The utility model also provides an automobile seat, referring to fig. 6, which is a first preferred embodiment of the automobile seat of the utility model, and the automobile seat comprises a seat cushion 41, a backrest 42, an automobile safety belt 43 and the seat anti-forward-tilting structure, wherein the first seat body 10 of the seat anti-forward-tilting structure is used for being connected with an automobile body, the seat cushion 41 and the backrest 42 are both arranged on the second seat body 20, the first seat body 10 is provided with a first connecting position 44 for being connected with the automobile safety belt 43, the backrest 42 is provided with a second connecting position 45 for being connected with the safety belt, the automobile safety belt 43 is abutted against the second seat body 20, and the stressed part 22 is a part abutted against the automobile safety belt 43 on the second seat body 20. When the vehicle emergency braking or the front collision, the passenger, cushion 41 and backrest 42 dash forward under the inertia effect, the force applied to automobile safety belt 43 is increased, automobile safety belt 43 correspondingly applies a force larger than a preset magnitude to stress part 22, so that second limiting part 21 on second seat body 20 moves to abut against first limiting part 11, and then the forward tilting prevention structure of the seat can limit the forward tilting action of the automobile seat, the protection to the passenger can be effectively improved, and the casualty rate in traffic accidents is reduced.

In this embodiment, the second seat body 20 is deformed to realize the movement of the second limiting portion 21, the force-receiving portion 22 is a portion of the outer side surface of the second seat body 20, in other embodiments, a movable member may be disposed on the second seat body 20 to connect or abut the seat belt 43 with the movable member, and the second limiting portion 21 is disposed on the movable member, so that the second limiting portion 21 moves to be aligned with the first limiting portion 11 up and down by the movement or swinging of the movable member relative to the second seat body 20.

In the present embodiment, the side member 46 is connected to the second seat body 20, the side member 46 is used for connecting the seat cushion 41 and the backrest 42, the seatbelt 43 is pressed against the side surface of the side member 46, and the external force applied by the seatbelt 43 is transmitted to the second seat body 20 through the side member 46, but in other embodiments, the seatbelt 43 may be directly abutted against the side surface of the second seat body 20.

In addition, in this embodiment, the car seat belt 43 can simultaneously apply a pulling force to the backrest 42 through the first connecting position 44, and the backrest 42 can also drive the second seat body 20 to deform the second seat body 20 through the connecting structure between the seat cushion 41 and the second seat body 20, so that the second limiting portion 21 moves to be aligned with the first limiting portion 11 up and down.

The vehicle seat of the present invention further includes a second preferred embodiment, which is different from the first embodiment in that in this embodiment, the second connecting position 45 is disposed on the second seat body 20, and the force-receiving portion 22 is the second connecting position 45, so that the vehicle seat belt 43 can directly work on deformation or movement of the second seat body 20 to move the second position-limiting portion 21 to be aligned with the first position-limiting portion 11 up and down.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A seat forward-lean prevention structure, comprising:

the first seat body (10), wherein a first limiting part (11) is arranged on the first seat body (10);

the second seat body (20) is arranged on the first seat body (10), the rear part of the second seat body (20) can move up and down relative to the first seat body (10), and the rear part of the second seat body (20) is provided with a second limiting part (21);

the first limiting part (11) is located above the second limiting part (21) at a distance and laterally staggered with the second limiting part (21), a stress part (22) which can be abutted or connected with an automobile safety belt (43) is arranged on the second seat body (20), and the second limiting part (21) can move to be vertically aligned with the first limiting part (11) when the safety belt applies external force larger than a preset magnitude to the stress part (22).

2. A seat forward-tilting prevention structure according to claim 1, wherein said second seat body (20) is deformable to move said second stopper portion (21) into vertical alignment with said first stopper portion (11) when an external force larger than a predetermined magnitude is applied to said force receiving portion (22) by a seatbelt (43).

3. The chair forward-tilting prevention structure according to claim 2, wherein the second seat body (20) comprises two side connecting frames (23) which are oppositely arranged at left and right, the rear parts of the two side connecting frames (23) are connected through a linkage rod (24), and the linkage rod (24) is movably arranged on the first seat body (10) up and down; the second limiting part (21) and the stressed part (22) are arranged on the bypass frame (23), and the bypass frame (23) can deform when being subjected to external force which is larger than a preset magnitude and is applied by a safety belt (43) of an automobile so as to enable the second limiting part (21) to move to be vertically aligned with the first limiting part (11).

4. A seat forward-leaning prevention structure according to claim 3, wherein the second limiting portions (21) are disposed on both the side frames (23), the first seat body (10) is correspondingly disposed with the two first limiting portions (11), and both the side frames (23) can be deformed to make the second limiting portions (21) respectively align with the first limiting portions (11) up and down under the action of an external force greater than a predetermined magnitude applied by the seat belt (43).

5. A seat forward-tilting prevention structure according to claim 3, wherein when the side attachment frame (23) receives an external force greater than a predetermined magnitude applied by the seat belt, the side attachment frame (23) can be bent and deformed inward to move the second stopper portion (21) into vertical alignment with the first stopper portion (11).

6. The seat forward-tilting prevention structure of claim 3, further comprising at least one swinging member (30), wherein the head of the swinging member (30) is pivoted on the first seat body (10), and the tail of the swinging member is connected with the linkage rod (24).

7. The seat forward-tilting prevention structure of claim 3, wherein the side connection frame (23) is provided with a connection hole (231) adapted to the linkage rod (24), the linkage rod (24) is inserted into the connection hole (231) and connected to the side connection frame (23), the linkage rod (24) is convexly provided with a positioning stopper (241), and the positioning stopper (241) abuts against the side wall of the side connection frame (23) to limit the insertion depth of the linkage rod (24) in the connection hole (231).

8. An automobile seat, characterized by comprising a cushion (41), a backrest (42), an automobile safety belt (43) and the seat anti-forward-leaning structure according to any one of claims 1 to 7, wherein the first seat body (10) of the seat anti-forward-leaning structure is used for connecting with an automobile body, the cushion (41) and the backrest (42) are both arranged on the second seat body (20), a first connecting position (44) for connecting the automobile safety belt (43) is arranged on the first seat body (10) or the second seat body (20), and a second connecting position (45) for connecting the safety belt is arranged on the backrest (42).

9. The car seat according to claim 8, characterized in that the first connecting position (44) is arranged on the first seat body (10), the car safety belt (43) abuts against the second seat body (20), and the force-receiving portion (22) is a portion of the second seat body (20) abutting against the car safety belt (43).

10. The car seat according to claim 8, characterized in that the second connecting position (45) is arranged on the second seat body (20), and the force-receiving portion (22) is the second connecting position (45).