CN103287290A - Motor vehicle seat protecting head - Google Patents

Abstract

The invention discloses a motor vehicle seat for protecting the head, comprising a frame assembly, the frame assembly includes an outer support (2), the frame assembly is provided with a head protection frame assembly for protecting the head, a back protection The backrest frame assembly and the spring mechanism that absorbs the collision energy, the head protection frame assembly uses a link mechanism and a damping energy-absorbing mechanism, making full use of the working principle of the link mechanism and damping energy-absorbing mechanism, when the vehicle collides with the rear During a collision, the head protection frame assembly can actively move toward the head smoothly and reliably, so as to achieve the function of actively protecting the head.

Description

A motor vehicle seat for head protection

technical field

The invention belongs to the technical field of automobile safety, in particular to a motor vehicle seat for head protection.

Background technique

Most of the existing vehicle seats adopt passive head safety protection. When the car collides with the rear, it cannot protect the occupant's head safety in time and effectively; or some complex electronic control systems are used to control the active protection of the seat, but This method greatly increases the manufacturing cost and difficulty.

Contents of the invention

The technical problem to be solved by the present invention is to provide a head-protecting motor vehicle seat that supports the occupant's head and reduces the impact force on the occupant's head when a rear-end collision occurs.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a motor vehicle seat for head protection, including a frame assembly, the frame assembly includes an outer bracket, and the frame assembly is provided with a protective The head protection frame assembly for the head, the backrest frame assembly for protecting the back, and the clockwork mechanism for absorbing collision energy.

The back frame assembly includes a back frame and an inner bracket, the inner bracket is located in the middle of the back frame, and is connected to the back frame through evenly distributed springs, and the inner bracket is connected to the outer bracket.

The head protection frame assembly includes a back board, a head frame, a connecting rod and a damping spring, and the back board is fixedly connected to the lower end of the head frame; Near the middle part of the rod is hinged with the upper fixed block, one end of the connecting rod is hinged with the backboard, the other end is connected with one end of the damping spring, and the other end of the damping spring is connected with the lower fixed block, there are two connecting rods located at the head The two sides of the frame are respectively the left link and the right link.

The clockwork mechanism includes a return spring, the seat frame is connected to the lower end of the outer support through the seat frame shaft, and the outer support is provided with a bump, one end of the return spring is connected to the bump, and the other end is connected to the The seat frame is connected; there are two seat frames, which are respectively located on both sides of the outer support, and are respectively a left seat frame and a right seat frame.

The inner bracket is fixedly connected with the outer bracket through a connecting beam.

The head frame includes a square tube frame and a straight tube frame, the straight tube frame and the square tube frame are fixedly connected, and the straight tube frame is defined on the upper part of the outer bracket by a limiting frame.

The advantage of the present invention is that,

1. It can absorb the energy generated by the vehicle rear-end collision in all directions and as much as possible, so as to reduce the damage to the human body caused by the collision;

2. When a rear-end collision occurs, the head protection frame assembly moves toward the head smoothly and reliably, protecting the head as much as possible;

3. No complicated electronic control system is needed, which greatly reduces the manufacturing cost.

Description of drawings

Fig. 1 is a schematic structural view of a head-protecting motor vehicle seat of the present invention;

Fig. 2 is a structural schematic diagram of the backrest skeleton assembly of the motor vehicle seat protecting the head in Fig. 1;

Fig. 3 is a structural schematic diagram of the head protection frame assembly of the motor vehicle seat protecting the head in Fig. 1;

Fig. 4 is a structural schematic diagram of the connecting mechanism of the head protection frame assembly in Fig. 3;

The marks in the above figures are: 1. Left seat frame, 2. Outer bracket, 2-1. Groove, 2-2. Protrusion, 3. Spring, 4. Lower fixed block, 4-1. Lower spring hole , 5, inner bracket, 5-1, connecting beam, 6, damping spring, 7, lower hinge bolt, 8, left connecting rod, 8-1, upper bolt hole, 8-2, spring hole, 8-3, lower Hinged bolt hole, 9, upper fixed block, 9-1, bolt hole, 10, upper hinged bolt, 11, backboard, 12, head frame, 12-1, straight cylinder frame, 12-2, square pipe frame, 13, Limited frame, 14, right connecting rod, 15, seat frame shaft, 16, return spring, 17, right seat frame, 17-1, connecting frame, 17-2, connecting hole, 18, backrest frame, 19, nut .

Detailed ways

Fig. 1 is a schematic structural view of a head-protecting motor vehicle seat of the present invention, comprising a frame assembly, the frame assembly comprising an outer support 2, the frame assembly being provided with a head-protecting skeleton assembly for protecting the head, The backrest frame assembly that protects the back and the clockwork mechanism that absorbs impact energy.

Clockwork mechanism comprises return spring 16, and seat frame is connected with outer support 2 lower ends by seat support shaft 15, and outer support 2 is provided with projection 2-2, and return spring 16 one end is connected with projection 2-2, The other end is connected with the seat frame; there are two seat frames, which are respectively located on both sides of the outer support 2, and are respectively the left seat frame 1 and the right seat frame 17.

Fig. 2 is the structural representation of backrest framework assembly, and backrest framework assembly comprises backrest frame 18 and inner bracket 5, and inner bracket 5 is positioned at the middle part of backrest frame 18, and is connected with backrest frame 18 by evenly distributed spring 3, and inner bracket 5 is connected with backrest frame 18. The outer support 2 is fixedly connected through the connecting beam 5-1.

Fig. 3 and Fig. 4 are the structural representations of the head protection frame assembly, the head protection frame assembly includes a back board 11, a head frame 12, a connecting rod and a damping spring 6, and the back board 11 is fixedly connected to the lower end of the head frame 12; The bracket 2 is provided with an upper fixed block 9 and a lower fixed block 4, the middle part of the connecting rod is hinged with the upper fixed block 9, one end of the connecting rod is hinged with the backboard 11, the other end is connected with one end of the damping spring 6, and the other end of the damping spring 6 is connected with the The lower fixed block 4 is connected, and there are two connecting rods, which are respectively located on both sides of the head frame 12, and are respectively a left connecting rod 8 and a right connecting rod 14. The head frame 12 includes a square tube frame 12 - 2 and a straight tube frame 12 - 1 , the straight tube frame 12 - 1 and the square tube frame 12 - 2 are fixedly connected, and the straight tube frame 12 - 1 is defined on the upper part of the outer frame 2 by a limiting frame 13 .

The upper part of the outer support 2 is tubular, and the lower part is shell-shaped. Its lower part is coaxially connected with the mount shaft 15 through two symmetrically distributed holes 2-1.

A connecting frame 17-1 and two connecting holes 17-2 are arranged in the right seat frame 17, which can be fixedly connected with corresponding parts of the vehicle respectively, and a return spring 16 is also housed inside. One end of the return spring 16 is connected with the right seat frame 17, and one end is connected with the projection 2-2 of the outer support 2 bottom. The two ends of the seat frame shaft 15 protrude from the left seat frame 1 and the right seat frame 17, and are fixedly connected thereto. The left mount 1 is connected with the outer support 2 and the mount shaft 15 in the same manner as the right mount 17 .

The back frame 18 is formed by connecting two rigid sticks with some steel wires, and is located in the middle of the inner support 5, and is connected with eight springs 3 left and right symmetrical, equidistant distribution up and down. The upper part of the head frame 12 is two symmetrically distributed straight frames 12-1, the lower part is a square tube frame 12-2 in a certain geometric shape, the lower part of the square tube frame 12-2 is fixedly connected with the upper part of the backboard 11, and the backboard The left end of 11 bottoms is hinged with the left connecting rod 8 through the lower hinge bolt hole 8-3 with the lower hinge bolt 7. The left connecting rod 8 and the upper fixed block 9 pass through the upper bolt hole 8-1 and the bolt hole 9-1 respectively with the upper hinge bolt 10 to be hinged.

The upper end of damping spring 6 is connected with left connecting rod 8 through spring hole 8-2, and its lower end is connected with lower fixed block 4 through lower spring hole 4-1. The right connecting rod 14 and the left connecting rod 8 are respectively connected with the backboard 11 and the corresponding upper and lower fixing blocks 4 in the same manner.

The upper fixed block 9 and the lower fixed block 4 are respectively fixed on the corresponding parts of the outer bracket 2, and the straight frame 12-1 of the head frame 12 is limited on the top of the outer bracket 2 by the limit frame 13, so that the head frame 12 can move in a certain spatial direction. The connecting beam 5-1 of the inner bracket 5 in the backrest frame assembly is fixedly connected with the corresponding part of the lower part of the outer bracket 2 .

The working principle is: when the vehicle has a rear-end collision accident, the occupant moves backward due to the reaction to the rear-end collision, and the back of the occupant below the chest rests on the backrest frame assembly, making the back arched and moving backward together with the backrest frame assembly move. Since the occupant's back is arched and the back above the chest leans against the backboard 11, the occupant will also generate an upward and backward force on the backboard 11 when moving backwards. Under the action, the straight barrel frame 12-1 is moved upwards and forwards, that is, the head protection skeleton assembly moves toward the head, covers the head, and plays the role of protecting the head.

Spring 3, damping spring 6 and return spring 16 all play the effect of absorbing the collision energy, thereby the head protection frame assembly is smoothly and reliably moved to the head.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods, as long as various insubstantial improvements are adopted in the method concept and technical solutions of the present invention, or there is no improvement Directly applying the conception and technical solutions of the present invention to other occasions falls within the protection scope of the present invention.

Claims (6)

1. A motor vehicle seat for head protection, comprising a frame assembly, the frame assembly includes an outer bracket (2), characterized in that, the frame assembly is provided with a head protection for head protection Frame assembly, backrest frame assembly to protect the back, and clockwork mechanism to absorb impact energy. 2. The motor vehicle seat for head protection according to claim 1, characterized in that, the backrest frame assembly includes a backrest frame (18) and an inner bracket (5), and the inner bracket (5) is located at The middle part of the backrest frame (18) is connected with the backrest frame (18) through evenly distributed springs (3), and the inner bracket (5) is connected with the outer bracket (2). 3. The motor vehicle seat for head protection according to claim 2, characterized in that, the head protection frame assembly comprises a back board (11), a head frame (12), a connecting rod and a damping spring ( 6), the backrest board (11) is fixedly connected with the lower end of the head frame (12); the outer bracket (2) is provided with an upper fixing block (9) and a lower fixing block (4), and the middle part of the connecting rod is Hinged with the upper fixed block (9), one end of the connecting rod is hinged with the backboard (11), the other end is connected with one end of the damping spring (6), and the other end of the damping spring (6) is connected with the lower fixed block (4) , there are two connecting rods, which are respectively located on both sides of the head frame (12), and are respectively the left connecting rod (8) and the right connecting rod (14). 4. The motor vehicle seat for protecting the head according to claim 3, characterized in that, the clockwork mechanism includes a return spring (16), and the seat frame is connected to the outer body through the seat frame shaft (15). The lower end of the bracket (2) is connected, the outer bracket (2) is provided with a bump (2-2), one end of the return spring (16) is connected to the bump (2-2), and the other end is connected to the seat frame connection; there are two mounts, which are respectively located on both sides of the outer support (2), namely the left mount (1) and the right mount (17). 5 . The motor vehicle seat for head protection according to claim 4 , characterized in that, the inner support ( 5 ) is fixedly connected to the outer support ( 2 ) through a connecting beam ( 5 - 1 ). 6. The motor vehicle seat for head protection according to claim 5, characterized in that, the head frame includes a square tube frame (12-2) and a straight frame (12-1), and the straight frame ( 12-1) is fixedly connected to the square tube frame (12-2), and the straight tube frame (12-1) is limited to the upper part of the outer frame (2) by the limit frame (13).

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