CN212979980U

CN212979980U - Automobile seat backrest device for providing spine support in impact process

Info

Publication number: CN212979980U
Application number: CN202020477494.3U
Authority: CN
Inventors: 刘息宇; 尹尚
Original assignee: Changchun Fusheng Auto Parts Co ltd
Current assignee: Changchun Fusheng Auto Parts Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-04-16
Anticipated expiration: 2030-04-03

Abstract

The utility model relates to a provide car seat back device that vertebra supported at striking in-process, the device include the elasticity shock attenuation area, roll line mechanism, pretension mechanism and foam, the elasticity shock attenuation area set up at the back of foam, every the elasticity shock attenuation area links firmly, the other end is connected through the fixed point of one end and back skeleton curb plate rolls line mechanism, roll line mechanism connection pretension mechanism. The device can provide necessary support for the spine, help to absorb impact energy, reduce whiplash injury of the existing automobile, particularly neck over-flexion injury caused by automobile accidents, and has the advantages of simple and reasonable design and high comfort level.

Description

Automobile seat backrest device for providing spine support in impact process

Technical Field

The utility model relates to a car seat technical field, especially a car seat back device that provides vertebra at the striking in-process and support, the device can install at the back foam back, will provide necessary support for the backbone at the striking in-process, reduces the damage to back and neck at the car striking in-process.

Background

In the process of rear collision of a vehicle, the body can be affected by whiplash, so that the neck and the spine are damaged, the wearing distance (the distance between the head and the headrest) of the front-row seat of the vehicle at the present stage is reduced, the whiplash is reduced, and the existing backrest foam is hard.

During a rear-end collision of a vehicle, the seat moves forward, the body of a person sinks into the seat foam, the impact of the energy received by the spine is absorbed by the suspension springs attached to the side plates of the back frame, and the foam of the high performance seat has many parts behind it that may cause injury to the back of the occupant.

The utility model will increase the energy absorbed by the spine and reduce the spinal injuries, when the device is effective, it will have the shape of the spinal cord, increasing the spinal support, and will not let the spinal column sink into the seat back to contact other seat parts, this design also allows the manufacturer to use softer foam, which will increase the comfort level of daily riding; the spinal support increases the absorption of energy and reduces the injury caused by whiplash.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a car seat back device that provides vertebra at the striking in-process and support, the device can provide necessary support for the backbone to help absorbs impact energy, reduces the whip damage injury of current car, indicates especially that the neck that the traffic accident caused excessively bends and stretches the damage, and the device design is simple, and is reasonable, and the comfort level is high.

The utility model aims at realizing like this, a provide car seat back device that vertebra supported at striking in-process, the device include elasticity shock attenuation area, roll line mechanism, pretension mechanism and foam, elasticity shock attenuation area set up at the back of foam, every the elasticity shock attenuation area links firmly, the other end is connected through the fixed point of one end and back skeleton curb plate rolls line mechanism, roll line mechanism and connect pretension mechanism.

The device is provided with three parallel elastic damping belts, two ends of each elastic damping belt are connected with fixed ends, and the middle of each elastic damping belt is provided with a long elliptical hole.

The wire rolling mechanism is formed by combining wire clamps, wire rolling steel wires and wire rolling, wherein the wire rolling steel wires are arranged in the wire clamps, each wire clamp is connected with the wire rolling combination, the wire clamps are fixed through a plurality of metal binding guide pipes, and all the metal binding guide pipes are connected to the side plates.

The pre-tightening mechanism is composed of a pre-tightening mechanism body and a gas generator, and the pre-tightening mechanism is connected to a side plate of the backrest framework.

The utility model has the advantages of it is following and technological effect:

1. the utility model discloses owing to use the pretensioner mechanism of similar seat airbag, and this mechanism is attached to the back skeleton curb plate, because all use chemical reaction, its speed of deployment is the same with airbag's speed of deployment.

2. The utility model discloses have three elasticity back and support the area, the material that uses has elasticity, and this helps absorbing impact energy, also makes the passenger can not feel the strong impact of collision to the backbone.

3. The steel wire of the present invention has no additional features, it only helps the elastic support to generate tension, when the pretensioner pulls the steel cable, it will result in all three supports being tensioned, thereby generating tension, causing them to move forward, thereby causing the foam to move forward.

4. The elastic main body used by the utility model is positioned behind the backrest foam and does not interfere with other parts; the design also leaves sufficient arrangement space for relevant parts of the seat mechanical massage device so as to ensure that the equipment does not interfere with the seat mechanical massage device under normal conditions and in the unfolding process.

5. The utility model discloses only be connected with back skeleton to except moving forward the foam, do not have any influence to other any part, this also means easily to be changed, seat easily maintains, and low cost.

6. The utility model discloses an elasticity major structure can be the backbone form when taut, increases the support to the back through increasing the damping, and then beats the whip of passenger's back when reducing the car back and hitting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of fig. 1 according to the present invention.

Fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention.

Figure 4 is a cross-sectional view a-a of the present invention prior to deployment in figure 1.

Fig. 5 is a cross-sectional view a-a of the present invention after deployment in fig. 1.

Reference numerals: the device comprises an elastic damping belt 1, fixing points 1-1, a wire rolling mechanism 2, wire clamps 2-1, wire rolling steel wires 2-2, a wire rolling combination 2-3, a metal binding conduit 2-4, a pre-tightening mechanism 3, a pre-tightening mechanism body 3-1, a gas generator 3-2, a foam body 4 and a backrest framework side plate 5.

Detailed Description

The following detailed description of the embodiments of the present invention refers to the accompanying drawings.

As shown in fig. 1, 2 and 3: the automobile seat backrest device for providing spine support in the impact process comprises elastic damping belts 1, a line rolling mechanism 2, a pre-tightening mechanism 3 and a foam body 4, wherein at least two elastic damping belts 1 are arranged behind the foam body 4, each elastic damping belt 1 is fixedly connected with a frame structure 5 through a fixing point 1-1 at one end, the other end of each elastic damping belt is connected with the line rolling mechanism 2, and the line rolling mechanism 2 is connected with the pre-tightening mechanism 3.

The device is provided with three parallel elastic damping belts 1, two ends of each elastic damping belt 1 are connected and fixed ends, and the middle of each elastic damping belt 1 is provided with a long elliptical hole 1-2.

The wire rolling mechanism 2 is composed of wire clamps 2-1, wire rolling steel wires 2-2 and wire rolling combinations 2-3, wherein the wire rolling steel wires 2-2 are arranged in the wire clamps 2-1, each wire clamp 2-1 is connected with the wire rolling combination 2-3, the wire clamps 2-1 are fixed through a plurality of metal binding conduits 2-4, and all the metal binding conduits 2-4 are connected to side plates.

The pre-tightening mechanism 3 consists of a pre-tightening mechanism body 3-1 (the pre-tightening mechanism body 3-1 adopts a device similar to a safety belt pre-tightening mechanism but smaller in the prior art) and a gas generator 3-2, the pre-tightening mechanism 3 is connected to a side beam of the backrest,

as shown in fig. 4: the elastic shock-absorbing band 1 (elastic support) will contact the foam without forcing the foam to deform, showing the appearance of the arrangement when the system is in the inactive state.

As shown in fig. 5: showing how the foam reacts when the system is deployed. The portion of the wire-rolling mechanism 2 where the wire-rolling wire 2-2 protrudes from the wire clip 2-1 (guide) is retracted, thereby creating a pulling force on the elastic damping band 1, which causes the support elastic damping band 1 to push the foam 4 forward to provide a supporting force.

The design displacement distance of the device is 20mm at present, and correspondingly, the foam can displace 20mm along with the displacement distance, and the value can be optimally changed according to the requirements of different seat products.

Claims

1. A vehicle seat back assembly for providing spinal support during an impact, comprising: the device comprises an elastic damping belt (1), a line rolling mechanism (2), a pre-tightening mechanism (3) and a foam body (4), wherein the elastic damping belt (1) is arranged behind the foam body (4), each elastic damping belt (1) is fixedly connected with a backrest framework side plate (5) through a fixed point (1-1) at one end, the other end of each elastic damping belt is connected with the line rolling mechanism (2), and the line rolling mechanism (2) is connected with the pre-tightening mechanism (3).

2. A car seat back assembly for providing spinal support during an impact as claimed in claim 1 wherein: the elastic damping belt (1) is arranged in three and transverse parallel modes, two ends of the elastic damping belt (1) are connected and fixed ends, and the middle of the elastic damping belt is provided with a long elliptical hole (1-2).

3. A car seat back assembly for providing spinal support during an impact according to claim 1 or 2 wherein: the wire rolling mechanism (2) is composed of wire clamps (2-1), wire rolling steel wires (2-2) and a wire rolling combination (2-3), wherein the wire rolling steel wires (2-2) are arranged in the wire clamps (2-1), each wire clamp (2-1) is connected with the wire rolling combination (2-3), the wire clamps (2-1) are fixed through a plurality of metal binding conduits (2-4), and all the metal binding conduits (2-4) are connected to side plates.

4. A car seat back assembly for providing spinal support during an impact according to claim 1 or 2 wherein: the pre-tightening mechanism (3) is composed of a pre-tightening mechanism body (3-1) and a gas generator (3-2), and the pre-tightening mechanism (3) is connected to a side beam of the backrest.