KR100321422B1 - Device for fowardly moving head-rest - Google Patents

Abstract

The present invention relates to a headrest forward moving device, and more particularly, to a headrest forward moving device using inertia protecting a driver's neck during a rear collision. The present invention is the inertial weight 10 installed in the backrest of the seat, the inertial weight rod (L1) connecting the inertial weight 10 to the hinge point 20, the hinge point 20 of the headrest 60 Headrest rod (L2) connected to the center portion, the locking pin 30 is located directly on the hinge point 20 is automatically locked by inertia when colliding, and the locking pin (30) by a slight collision or sudden start Spring 40 to support the locking pin 30 by inhibiting the movement of the) and the bar 40 is operated by inertial force to operate the locking pin 30 and move in all directions. According to the present invention configured as described above there is an advantage that protects the neck and head of the driver after the rear collision accident, can be reused after the accident, and does not require A / S cost.

Description

Headrest forward moving device {Device for fowardly moving head-rest}

The present invention relates to a headrest forward movement device, in particular, by providing a means for moving the headrest forward by using the movement of the weight by the inertia, the headrest forward movement that can protect the neck of the driver in the event of a rear collision Relates to a device.

Conventional headrests are severely impacted on the neck and head as the upper body of the driver is moved to the rear in the case of a rear collision, and in severe cases may be severely injured, such as a neck disk.

In the conventional headrest 60, as shown in FIG. 1, the headrest 60 is moved backward by the weight with the driver during a rear collision accident, which causes severe injury to the neck of the driver.

Therefore, in the case of a frontal collision, the driver could be protected by an airbag, but in the case of a rearward collision, a protection device that could protect the neck or head of the driver was insufficient.

In addition, no matter how firmly made the back 70, the headrest 60 is moved away from the head by the momentary rotational movement by the inertia does not protect the head of the driver at all.

Accordingly, the present invention has been made in order to solve the above problems, unlike the upper body and back of the driver moving to the rear in the event of a rear collision by moving the headrest forward, to protect the head and neck of the driver For the purpose of

In order to achieve the above object, the present invention, the inertial weight 10 installed in the backrest 70 of the seat, the inertial weight rod (L1) connecting the inertial weight 10 to the hinge point 20, the hinge point Headrest rod (L2) connected to the center portion of the headrest 60 from 20, and the locking pin 30 is located directly on the hinge point 20 and automatically locked by inertia when colliding, Spring 40 to support the locking pin 30 by suppressing the movement of the locking pin 30 by a slight collision or sudden start during operation, and is operated by an inertial force to operate the locking pin 30 and move in all directions ( 50) characterized by consisting of.

1 is a schematic view showing a conventional headrest

Figure 2 is a schematic diagram showing a state before the operation of the headrest forward movement device according to the invention Figure 3 is a schematic diagram showing a state after the operation of the headrest forward movement device according to the invention

<Explanation of symbols for the main parts of the drawings>

M2: mass of headrest M1: mass of inertial weight

L2: Headrest Rod L1: Inertia Weight Rod

10: inertia weight 20: hinge point

30: locking pin 40: spring 50: bar 60: headrest 70: backrest

Headrest according to the present invention as described above will be described in detail by the accompanying drawings.

As shown in FIG. 1, the conventional headrest 60 moves backward with the backrest 70 when the driver moves backward during a rear collision and thus does not protect the neck and head of the driver at all.

That is, when the backrest 70 is tilted backwards by a predetermined angle, the headrest 60 far from the center of rotation of the bottom portion of the backrest 70 has a greater movement distance than the distance moved by the bottom portion of the backrest 70.

2 and 3, the inertial weight 10 installed inside the backrest 70, the inertial weight rod L1 connecting the inertial weight 10 to the hinge point 20, and the hinge point ( 20) in the headrest rod (L2) connected to the center portion of the headrest 60, located in the upper portion of the backrest 70 is located directly on the hinge point 20, the locking is automatically locked by inertia when colliding The pin 30 and the headrest rod L2 are integrally connected to the spring 40 which supports the locking pin 30 by suppressing the movement of the locking pin 30 due to a slight collision or a sudden start or stop while driving. It is composed of a bar (50) to maintain the moved state of the headrest (60) while being locked to the locking pin (30) by moving forward while opening the locking pin (30) with the forward movement of (60).

Hereinafter, the operation and effects of the headrest forward movement device according to the present invention having the configuration as described above will be described.

Headrest mass M2

Inertial mass M1

In the headrest rod L2 inertia weight rod L1, under the condition that 2 × L2 = L1 and 2 × M2 = M1,

Since the inertia force due to the rear collision greatly acts on the inertia weight portion 10, the inertia weight 10 rotates backward at the moment of collision and the headrest 60 rotates forward and the movement distance is more than that, that is, the bar ( When the 50 passes the locking pin 30, the locking position is locked by the locking pin 30 so that the position of the headrest 60 is moved forward, thus reducing the distance to the driver's head and reducing the force received by the neck. give.

The locking pin 30 is supported by the spring 40 to suppress movement due to a slight collision or sudden start during operation, so that the locking pin 30 operates only during an accident such as a rear collision.

In addition, after the crash accident by forcibly pushing the headrest (60) so that the bar 50 is located backwards while opening the locking pin 30 again, the headrest (60) can be returned to its original position permanently used This is possible.

As described above, the present invention is able to protect the neck and head in the case of rear collision accident to protect the driver at a low cost, in particular to enable the permanent use of the headrest after the accident, thereby enabling permanent use It works.

It also protects the driver's neck and head when rebounding after a crash.

Claims (2)

An inertial weight 10 installed inside the backrest 70, an inertial weight rod L1 connecting the inertial weight 10 to the hinge point 20, and a center of the headrest 60 at the hinge point 20. Headrest rod (L2) connected to the part, the locking pin 30 is located on the upper portion of the hinge point 20 is automatically locked by inertia when colliding, and the locking pin (30) by slight collision or sudden start during driving Spring 40 to support the locking pin 30 by suppressing the movement of the movement, and is operated by the inertial force to operate the locking pin 30, consisting of a bar (50) moving in all directions along with the headrest (60) Headrest forward movement device, characterized in that. The method of claim 1, wherein the locking pin 30 is located inside the upper back of the hinge point 20, the spring 40 is supported so that it does not operate by a slight collision or moving by a sudden start during operation. Headrest forward movement device, characterized in that.