KR20100025649A

KR20100025649A - Head rest for automobile

Info

Publication number: KR20100025649A
Application number: KR1020080084280A
Authority: KR
Inventors: 전용관
Original assignee: 현대자동차주식회사
Priority date: 2008-08-28
Filing date: 2008-08-28
Publication date: 2010-03-10

Abstract

PURPOSE: A headrest for vehicles is provided, which reduces neck part lesion created in the vehicle collision and improves the safety. CONSTITUTION: A headrest for vehicles comprises a supporting part(100), a body portion(200), and an elastic body(300). The supporting part is installed at the upper part of the seat back in a vehicle and has an opened housing shape in one side. The body portion is inserted into the inner side of the supporting part and moves to the front in the crash occurrence by being pulled by a cable through the operation of an actuator of the seat back. The elastic body is equipped between the supporting part and body portion and elastically supports them.

Description

Head rest for automobile {Head rest for automobile}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head restraint for an automobile, and more particularly, to a head restraint for an automobile for reducing neck injury caused to a driver or a rider during a vehicle crash.

In general, a car seat is composed of a seat cushion for passengers to sit on, a seatback to lean on the back, and a headrest to support the neck and head. It is designed in consideration of safety.

Here, the headrest is a head restraint of the driver or the passenger sitting on the seat, and in particular, the head restraint protects the head of the driver or the passenger from the impact in the event of a rear collision with the vehicle.

1 is a diagram showing a conventional car headrest, and FIG. 2 is a diagram showing an operation example of a conventional car headrest.

As shown in FIG. 1, a conventional headrest for a vehicle includes a carrier 10 provided on an upper seat back of a vehicle, a rotating body 20 rotatably installed on the carrier 10, and the carrier 10. And a spring 30 connected between the rotating body 20 and restoring the rotation of the rotating body 20, and the carrier 10 coupled to the rotating body 20 by the rotation of the rotating body 20. It consists of a moving body 40 which is installed to be movable in the front and rear directions.

In addition, the seat back is provided with a plate 50 and a link 60 which are urged by the occupant's body in the rear of the vehicle, the plate 50 and the link 60 through the cable (C) of the upper seat back It is connected with the carrier 10.

As a result, when a rear collision accident by the vehicle occurs, the plate 50 and the link 60 mounted under the seatback pull the cable C, and at this time, the carrier ( The moving body 40 installed in 10) moves forward to protect the occupant's head.

On the other hand, when the force applied to the plate 50 in the seat back lower after the rear collision accident is removed, the plate 50 by the spring 30 provided between the rotating body 20 and the moving body 40 When the cable (C), which was pulled while being restored to the initial position, is also positioned in an initial state, the movable body 40 moved forward is restored to the rear and positioned in the original state.

However, in the case of a conventional car headrest, in the event of a rear collision accident on a vehicle, the distance between the headrest and the occupant's head is usually maintained at a certain value (for example, 4 cm or less) that ensures safety. If the head is not in close contact with the headrests, the occupant's head is pulled forward of the car and over-retracted backwards with very fast acceleration, resulting in headaches due to the impact on the neck of the occupant. Physical pain, such as dizziness is caused, or in severe cases there is a problem caused by death accidents due to necklash (whiplash injury).

The present invention relates to a head restraint for automobiles to solve the above problems, and in particular, an object of the present invention is to reduce neck injury caused to a driver or a rider during a vehicle crash.

The present invention is mounted to the upper seat back of the vehicle, the support of the housing shape of one side is opened; A body part inserted into the support part so that a cable is pulled by an actuator operation inside the seat back to move one side forward when a collision occurs; It is achieved by forming an elastic body provided between the support and the body portion to support each other elastically.

As described above, the headrest is moved backward through the kinetic energy generated from the head of the driver or the occupant during a vehicle collision, thereby reducing the collision energy caused by the accident and reducing the neck injury of the driver or the occupant. It is an invention effective for improving safety.

3 and 4 are related to the headrest for automobiles of the present invention, Figure 3 is a view showing the headrest for automobiles of the present invention, Figure 4 is a view showing an operation example of the headrest for automobiles of the present invention. to be.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 and 4, the headrest for a vehicle of the present invention is provided with a body part 200 which is movable forward from the support part 100 mounted on the seat back of the vehicle, which is generated due to a vehicle crash accident. The technical basic feature is to reduce the collision energy and at the same time reduce the neck injury of the driver or passengers to improve safety.

Hereinafter, each component of the headrest for a vehicle of the present invention will be described with reference to the accompanying drawings, one by one.

As shown in FIG. 3, the support part 100 has a housing shape of which one side is opened and is mounted on an upper seat back of the vehicle.

Here, the stopper 110 is formed at both ends of the support 100 so that the body 200 to be described below is caught.

In addition, the stopper 110 formed inside the support part 100 has a multi-stage shape to allow the body part 200 to be moved in stages.

When the body part 200 is inserted into the support part 100 and a collision occurs, one side of the body part 200 is pulled by the cable C by the actuator (not shown) provided in the seat back. A predetermined distance moves forward from the support part 100.

In addition, the outer side of the body portion 200 is formed so that the engaging projection 210, the locking projection 210 and the stopper 110 formed on the support portion 100 of the body portion 200 correspond to each other the body The part 200 will be caught by the support part 100.

On the other hand, the movement of the body portion 200 by the actuator operation and the cable operation after the collision described above is a known technique in the headrest system, so a detailed description thereof will be omitted.

Here, the elastic body 300 is provided between the rear side of the body portion 200 and the inner surface of the support portion 100 to enable the body portion 200 and the support portion 100 to elastically support each other.

Hereinafter, the embodiment of the present invention will be described in comparison with the conventional embodiment.

First, FIG. 2 shows a conventional occupant or driver state for a car headrest after a crash accident at each stage, and FIG. 4 shows a passenger or driver state of the present invention for a car headrest after a crash accident. Each step will be shown.

In the initial collision occurrence state of the related art, as shown in (a) of FIG. 2, the upper body and the lower body of the body B have a larger weight and receive inertia than the head H. The amount of motion increases and the head (H) is moved forward.

The initial state of collision occurs according to the present invention. As shown in FIG. 4 (a), since the upper body and the lower body receive greater weight and inertia than the head H, the upper and lower bodies have a greater amount of behavior. And the head H is moved forward.

In addition, in the state immediately after a conventional collision occurs, as shown in 2 (b), the headrest mounted on the upper seatback of the vehicle is operated so that one side of the body portion of the headrest protrudes forward and thus the occupant's head (H). To the side.

Immediately after the collision of the present invention is a state as in the prior art, as shown in Figure 4 (b), the headrest mounted on the seat back of the vehicle is activated to operate the body portion 200 of the headrest (see Fig. 3) One side protrudes forward to move to the head (H) of the occupant.

In addition, in the conventional headrest operation state after the collision occurs, as shown in Fig. 2 (c), the body (B) is moved to the rear to move upward by riding the seat back, the head (H) to the rear The movement causes tension and moment.

In the headrest operation state after the collision of the present invention, as shown in (c) of FIG. 4, the rear moving energy of the body B moves upward through the seat back, and before the head H moves, the support part ( 100, see FIG. 3) the head (H) is moved backwards, accordingly to make the upper body movement amount of the body (B) and the head (H) movement amount equal to the head (H) to move backward Will be reduced.

In addition, after the headrest is operated in a conventional collision, as shown in (d) of FIG. 2, the movement force of the head H is restrained from the headrest, and the lower body side kinetic energy of the body B is lost. The rebound occurs, the upper body side and the head (H) of the body (B) is moved to the rear and the lower body side of the body (B) is moved forward to cause a phenomenon that the neck is pulled up and down.

After the operation of the headrest in the collision of the present invention, as shown in Figure 4 (d), the elastic body 300, mounted between the support portion (100, Figure 3) and the body portion (200, Figure 3) The lower body side rebound of the body B is equal to the rear movement of the head H, and the upper body side of the body B and the head H are moved backwards, and the lower body is moved forward. This will prevent the phenomenon.

Further, in the final state of the headrest after the conventional collision, as shown in (e) of FIG. 2, the elastic restoring force of the seatback and the headrest is transmitted to the torso body B and the head H of the occupant, which moves forward. This increases the rebound rate.

In the final state of the headrest after the collision of the present invention, as shown in Figure 4 (e), by reducing the rebound by the elastic restoring force of the seat back and the headrest, the torso (B) upper body side and the head (H) of the occupant The rebound speed can be relatively reduced by lengthening the time to move backwards.

The headrest for a vehicle of the present invention configured as described above is composed of a support part mounted on an upper portion of a seat back of a vehicle, a body part inserted into the support part, and an elastic body provided between the support part and the body part. It is an invention having an excellent advantage in reducing the collision energy is reduced and at the same time to reduce the neck injury of the driver or passengers to improve the safety.

1 is a view showing a conventional headrest for a vehicle;

2 is a view showing an operation example of a conventional headrest for a vehicle;

3 is a view showing the headrest for a vehicle of the present invention;

4 is a view showing an example of operation of the headrest for automobile of the present invention.

100: support 110: stopper

200: body portion 210: locking projection

300: elastic body C: cable

Claims

A housing-shaped support part mounted on the seat back of the vehicle and having one side opened;

A body part inserted into the support part so that a cable is pulled by an actuator operation inside the seat back to move one side forward when a collision occurs;

The headrest for the vehicle, characterized in that composed of an elastic body provided between the support and the body portion to support each other elastically.

The vehicle headrest of claim 1, wherein a locking protrusion is formed at both ends of the outer side of the body, and a stopper is formed at both ends of the inner side of the support.

The vehicle headrest according to claim 1, wherein the stopper formed inside the support part has a multistage shape.