KR20040099782A - Seat for protecting a passenger's a neck for vehicles - Google Patents

Abstract

PURPOSE: A vehicle seat for neck protection is provided to obtain comfortable riding comfort by supporting a head rest on the driver's or passenger's head in a close contact state and to minimize passenger's injury in the neck in a rear collision accident. CONSTITUTION: A vehicle seat for neck protection comprises a seat back frame(11) arranged in a seat back(10); a support rod(12) hingably fastened to the seat back frame; a head rest(14) fixed to the upper end of the support rod and located to the upper end of the seat back; an actuator(15) controlling the operation of the support rod by electric control; and a pressure sensor(16) sensing the pressure acting on the seat back and driving the actuator.

Description

Seat for protecting a passenger's a neck for vehicles}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neck protective vehicle seat, and more particularly, to a neck protective vehicle seat capable of closely supporting a passenger's head during driving and preventing an occupant's neck injury during a rear collision.

In general, the top of the seat back of the car seat is equipped with a headrest that can support the head of the occupant provides a function to comfortably support the head of the occupant while driving.

On the other hand, during the rear collision of the vehicle, the body of the occupant is pushed backward by the inertia, and the occupant's head is bent backwards while the neck is bent, and the neck is easily injured.

However, the conventional headrest can adjust only the height at a certain height in the vertical direction from the seat back according to the physique of the occupant or driver, the headrest can not be adjusted in the front and rear direction of the seat.

Therefore, the degree of neck injury varies depending on the sitting position of the occupant or the driver during the collision.

Specifically, if the headrest between the occupant's head and the headrest is close, the headrest prevents the headrest of the occupant's head from falling back during the collision, thereby preventing the neck from being bent. If a collision occurs, the head of the occupant will be leaned back and the headrests will not support the head, which can cause severe neck injuries.

That is, in order to prevent the occupant's neck injury in the event of a collision, it is preferable that the occupant's head is positioned adjacent to the headrest, but the conventional seat headrest can be adjusted only in the vertical direction of the seat back, It is difficult to prevent the neck injury of the occupant in the rear collision accident because it is impossible to adjust.

The present invention is to solve the above-mentioned shortcomings, the advantage of the present invention is that the headrest is closely supported on the head of the driver or the occupant to provide a more comfortable ride, and can minimize the neck injury of the occupant during the rear collision accident To provide a vehicle seat for neck protection.

1 is a structure of a vehicle seat for protecting a neck according to a first embodiment of the present invention

Showing drawings,

Figure 2 is a structure of a neck protective vehicle seat according to a second embodiment of the present invention

Showing drawings,

Figure 3 is a view showing the operating state of the neck protection vehicle seat of the present invention.

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

10 seat back 11: seat back frame

12: support rod 13: elastic body

14: headrest 15: actuator

16 pressure sensor

The neck protection vehicle seat of the present invention includes a seat back frame provided in the seat back; A support rod provided with an elastic body and hinged to the seat back frame; A headrest fixed to an upper end of the support rod and positioned at an upper end of the seat back; An actuator for interrupting the operation of the support rod by electrical control; A pressure sensor for sensing the pressure acting on the seat back and driving the actuator is achieved.

In addition, the neck protection vehicle seat of the present invention includes a seat back frame provided in the seat back; A support rod provided with an elastic body and hinged to the seat back frame; A headrest fixed to an upper end of the support rod and positioned at an upper end of the seat back; An actuator for interrupting the operation of the support rod by electrical control; A collision detection sensor for detecting a rear collision of the vehicle; It may be achieved as a control unit for controlling the actuator by receiving the signal of the collision detection sensor.

1 to 3 is a view showing a neck protective vehicle seat of the present invention, Figure 1 is a view showing the structure of a neck protective vehicle seat according to a first embodiment of the present invention, Figure 2 is a second embodiment of the present invention 3 is a view showing the structure of a neck protective vehicle seat according to an example, Figure 3 is a view showing the operating state of the neck protective vehicle seat of the present invention.

First Embodiment

Referring to the first embodiment of the present invention in detail with reference to the accompanying drawings as follows.

The vehicle seat for protecting the neck of the present invention includes: a seat back frame 11 provided in the seat back 10; A support rod 12 provided with an elastic body 13 and hinged to the seat back frame 11; A headrest 14 fixed to an upper end of the support rod 12 and positioned at an upper end of the seat back 10; An actuator (15) for intermittent operation of the support rod (12) by electrical control; Technical features of the present invention include a pressure sensor 16 that senses the pressure acting on the seat back 10 to drive the actuator 15.

The seatback frame 11 is provided to be firmly fixed in the seat back 10, and the support rod 12 is arranged in the seatback frame 11 by the hinge shaft 12a so as to be rotatable.

An elastic body 13 is elastically supported between the seat back frame 11 and the support rod 12, and the headrest 14 fixed to the upper end of the support rod 12 has a restoring force within a predetermined angle (θ) range. It is possible to move in the direction.

The elastic body 13 may be preferably set to the elastic modulus of the elastic body within the range that the force is applied to the occupant's neck when the occupant supports the head to the headrest 14 to operate.

The actuator 15 is provided at the lower end of the support rod 12, and it is determined whether the support rod 12 is movable depending on whether the actuator 15 is operated.

In detail, when the actuator 15 does not operate, the support rod 12 is supported by the seat back frame 11 and the elastic body 13 to be movable together with the head of the occupant within a predetermined angle range.

When power is applied to the actuator 15, the actuator 15 delivered to the support rod 12 is driven by the set stroke to rotate the support rod 12 to rotate the headrest 14 to the head of the occupant. do.

The pressure sensor 16 is provided in the seat back 10 so as to sense a pressure that the occupant acts on the seat back 10.

The pressure sensor 16 is connected to the actuator 15, and the pressure sensor 16 outputs a control signal only at a specific pressure or higher to drive the actuator 15.

The pressure sensor may be installed at two or more positions on the seat back to more accurately sense the load acting on the occupant, and a well-known signal conversion circuit is provided between the pressure sensor and the actuator to convert signal levels. The signal transmitted from the pressure sensor may be converted into an actuator driving signal to be transmitted to the actuator.

Looking at the operation of the neck protection vehicle seat of the present invention configured as described above are as follows.

When a collision occurs in the rear of the vehicle, the occupant is pushed to the rear by the impact of the collision, and the pressure sensor 16 provided in the seat back 10 detects the pressure acting from the upper body of the occupant and the actuator. The control signal is transmitted to 15.

As shown in FIG. 3, the actuator 15 receiving the control signal is driven by the set stroke to rotate the support rod 12 to move the headrest 14 toward the occupant's head in the A direction. .

Since the headrest 14 is positioned to move to the head of the occupant, it is possible to quickly support the head to be flipped back by the collision impact to prevent the neck injury of the occupant.

When the actuator 15 is not operated in a normal driving state, the headrest can be moved in the front-rear direction within a range of an angle so that the occupant can support the head with the headrest and take a more comfortable posture.

Second Embodiment

Hereinafter, a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The neck protection vehicle seat of the present invention includes a seatback frame 21 provided in the seat back 20; An elastic body 23 and a support rod 22 hinged to the seat back frame 21; A headrest 24 fixed to an upper end of the support rod 22 and positioned at an upper end of the seat back 20; An actuator (25) for intermittent operation of the support rod (22) by electrical control; A collision sensor 26 for detecting whether the vehicle collides with the rear; Technically, the control unit 27 is configured to receive the signal from the collision detection sensor 26 and control the actuator 25.

Since the seat back frame 21, the elastic body 23, the support rod 22, and the actuator 25 are the same as those described in the first embodiment, overlapping descriptions are omitted and the configuration is the same as that of the first embodiment. Explain.

The collision sensor 26 is a sensor for detecting a collision at the rear, and is provided on the rear bumper side of the vehicle to detect whether there is a pressure sensor that detects an impact during a collision, or whether an object is expected to collide within a certain distance from the bumper. It may include a light sensor for detecting, or a radar device for detecting a reflected object by generating a certain electrical signal to the rear to detect the reflected signal within a certain distance.

The control unit 27 is connected to the collision detection sensor 26 determines the signal transmitted to determine whether or not to deliver a control signal to the actuator 25.

As described in the first embodiment, the neck protection vehicle seat of the present invention configured as described above, when the collision detection sensor 26 detects a rear collision and transmits a signal to the control unit 27, the control unit 27. Determines the signal of the collision detection sensor 26 and transmits a control signal to the actuator (25).

As the actuator 25 is actuated, the headrest 24 moves to the occupant's head side and is positioned, thereby supporting the occupant's head during a collision shock to prevent neck injury.

The neck protection vehicle seat of the present invention as described above is supported elastically in the vehicle seat back and the support rod is provided with a headrest; An actuator for interrupting the operation of the support rod; It consists of a sensing means for operating the actuator by detecting the rear collision, to support the head of the occupant in the rear collision accident to prevent neck injuries, so that the head restrained in close contact with the occupant's head during normal driving By this, it is an invention with the effect which can provide a more comfortable riding feeling.

Claims (2)

A seat back frame provided in the seat back; A support rod provided with an elastic body and hinged to the seat back frame; A headrest fixed to an upper end of the support rod and positioned at an upper end of the seat back; An actuator for interrupting the operation of the support rod by electrical control; Neck protection vehicle seat, characterized in that consisting of a pressure sensor for driving the actuator by sensing the pressure acting on the seat back. A seat back frame provided in the seat back; A support rod provided with an elastic body and hinged to the seat back frame; A headrest fixed to an upper end of the support rod and positioned at an upper end of the seat back; An actuator for interrupting the operation of the support rod by electrical control; A collision detection sensor for detecting a rear collision of the vehicle; Neck protection vehicle seat, characterized in that configured as a control unit for controlling the actuator receives the signal of the collision sensor.