KR20020047968A - Front seat for an automobile - Google Patents

Abstract

PURPOSE: A front seat for a vehicle is provided to minimize the injury on the body of an occupant by reducing the shock applied to the body. CONSTITUTION: A front seat for a vehicle comprises a seat cushion(2), a seat back(4), and a headrest(6). The seat moves along a seat track(8) attached to a floor panel. An upper panel(10) is attached to the lower portion of the seat cushion. A lower panel(20) is attached onto the seat track. In a collision of a vehicle, the upper panel is separated from the lower panel, and the seat cushion is rotated. Then, the direction of a force is changed. Therefore, the shock applied to an occupant is reduced.

Description

Front seat for car {FRONT SEAT FOR AN AUTOMOBILE}

The present invention relates to a front seat for an automobile, and more particularly, a vehicle capable of minimizing human injury by reducing an amount of impact transmitted to an occupant by changing a direction of an impact force by rotating a seat cushion inward during a collision of a vehicle. Relates to the front seat for.

In general, a vehicle is provided with a front seat and a rear seat, and a multi-row vehicle such as an RV vehicle is provided with more rows of seats. These seats consist of a seat cushion, which is a part of the occupant's seat, and a seat back, which is a part of which the back is leaning. In some cases, the upper part of the seat back is provided with a headrest that can rest against the head.

In particular, the front seat is divided into a driver's seat and a passenger seat, so that the height and position of the seat can be adjusted according to the driver's and passenger's body, respectively. In order to adjust the distance between the front seat and the instrument panel, a seat track is provided on the lower floor panel of the front seat, and the seat cushion can move back and forth while moving longitudinally along this seat track. On the other hand, the height adjuster (height adjuster) is installed on the B-pillar trim that the middle portion of the seat belt is fixed to adjust the seat belt fixing position according to the height of the occupant.

In recent years, in order to protect the driver and the occupant in the event of a collision and a collision accident, a driver's seat airbag and a passenger seat airbag are mounted on the steering wheel and the instrument panel, respectively, and some airbags have side airbags. do. In addition, an impact bar is installed between the outdoor panel and the inner door panel to minimize the impact on the occupant during side impact.

Conventional automobile front seats with such a configuration are equipped with headrests to protect the neck in the event of a collision, and in the case of front / side impacts, the body is protected by seat belts, airbags and impact bars in the doors. Costs and weights are increased because various devices must be installed to protect the human body in the event of a collision from the vehicle. In particular, in the case of airbags, airbag replacement costs are high after an accident, and asphyxiation by airbags frequently occurs.

The present invention for solving the above problems is to change the direction of the impact force by rotating the seat cushion inward with respect to the seat track in the event of a vehicle crash can reduce the amount of impact on the human body to minimize the human injury The purpose is to provide a sheet.

1 is a plan view of a front sheet according to the present invention;

2 is a plan view showing a state in which the front seat is rotated in accordance with the present invention at the time of a collision accident;

3 is a side cross-sectional view of the front seat according to the present invention;

4 is a plan sectional view of the front sheet according to the present invention;

FIG. 5 is a partially enlarged view of FIG. 4, illustrating a configuration of an inflator installed on a lower plate. FIG.

[Explanation of symbols on the main parts of the drawings]

2: seat cushion 4: seat back

10: top 12: extension

14: price 20: bottom

22: stopper 30: inflator

32: explosion gas 34: gas bag

38: ECU 40: Collision and shock sensor

An automobile front seat of the present invention for achieving the above object is a vehicle front seat that can be adjusted in length in the front-rear direction along a seat track attached to a floor panel, the lower plate attached to the seat track and the price means The upper surface is rotatably disposed on the lower plate and the upper surface is attached to the lower portion of the seat cushion, and the control unit for rotating the upper sheet by operating the price means in accordance with a signal transmitted from the impact and shock detection sensor to rotate the upper sheet Characterized in that it comprises a.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the front seat for a vehicle according to an embodiment of the present invention.

1 is a plan view of the front seat according to the present invention, Figure 2 is a plan view showing a state in which the front seat is rotated in accordance with the present invention in the event of a collision, Figure 3 is a side cross-sectional view of the front seat according to the present invention, Figure 4 is the present invention 5 is a cross-sectional plan view of the front seat, and FIG. 5 is a partially enlarged view of FIG.

First, as shown in Figs. 1 and 2, the front seat has a seat cushion 2 in which the occupant sits, a seat back 4, which is a part of the seat cushion 2, etc. It is provided with a headrest 6 installed at the top of the, it is possible to adjust the length of the front and rear direction while moving in the longitudinal direction along the seat track (8) attached to the floor panel.

In the front seat of such a configuration, the front seat is shown in FIG. 2 as a method for minimizing the impact on the human body when an impact is applied along the arrow directions P1 and P2 during the front collision and the rear collision accident. The structure to rotate inward in the left and right directions as illustrated. To this end, the upper plate 10 is attached to the lower portion of the seat cushion 2 and the lower plate 20 is attached to the seat track 8. The upper plate 10 is fixed to the lower plate 20 and a portion by welding or the like, while rotating the seat cushion 2 while being separated from the lower plate 20 in the event of a crash.

That is, if the impact force applied along the arrow direction P1 during the forward collision is FRR, the force F25 applied when the sheet is rotated by a certain angle θ (for example, 25 °) is reduced to FRRCOSθ. The impact force F Rr applied along the arrow direction P2 during the rearward collision is also reduced on the same principle.

3 illustrates a coupling state of the upper plate 10 and the lower plate 20. The upper plate 10 attached to the bottom surface of the seat cushion 2 is coupled to rotate on the lower plate 20 attached to the seat track 8, and is shown in FIGS. 4 and 5 in the event of a collision. The rotation is made by the price means.

As shown in Figs. 4 and 5, the front seat of the present invention is rotatably mounted on the lower board 20 by means of a lower plate 20 attached to the seat track 8 and a price means. The upper surface is disposed on the upper surface 10 attached to the lower portion of the seat cushion 2, and the front seat is left and right by rotating the upper plate 10 by operating the price means according to a signal transmitted from the collision / impact sensor 40. The control unit 38 is provided to rotate in the direction.

Here, the price means is operated in accordance with the price portion 14 and the signal transmitted from the control unit (ECU) 38 formed in the extension end 12 extending radially outward from the circumferential surface of the top plate 10 The inflator 30 which explodes a compressed gas, and the gas bag 34 which rotates the upper plate 10 by hitting the price part 14 by the gas which flows in accordance with operation of this inflator 30 are comprised. In addition, the lower plate 20 is formed with a stopper 22 which prevents the upper plate 10 from rotating by a predetermined angle θ or more when the upper plate 10 is rotated due to the expansion of the gas bag 34.

Although not shown in detail, the inflator 30 has an ignition means and a detonator embedded therein, and the ignition means is ignited in accordance with a signal transmitted from the control unit 38 to explode the detonating agent into the gas bag 34. The upper plate 10 is fixed at an angle θ while the fixed portion of the upper plate 10 and the lower plate 20 is released while the price unit 14 is charged by the gas ejected into the gas bag 34. Will rotate.

That is, when the impact amount detected by the collision / shock detection sensor 40 is greater than or equal to the reference value, the control unit 38 sends a control signal to the inflator 30 to operate it, thereby expanding the gas into the gas bag 34. As it is introduced into the price 14 to rotate the top plate 10. Accordingly, the upper plate 10 is rotated until it hits the stopper 22, and when the direction of the seat is the driver's seat is changed from the front to the left and right inward, the impact force that proceeds forward through the momentary angular movement of the seat By proceeding differently from the rotation progress direction of the amount of impulse applied to the occupant is significantly reduced.

According to the present invention described above, by rotating the seat cushion inward while the top plate rotates during a collision and collision accident of the vehicle, it is possible to minimize the impact on the human body by changing the direction of the impact force to minimize the human injury. In addition, the side of the seat rotated inward by the top plate in the event of a side impact can be protected from injury by receiving the impact force before the human body, the impact force is changed in the event of a collision can prevent the neck disc.

Claims (3)

In the front seat of the car which can be adjusted in length in the front and rear direction along the seat track attached to the floor panel, A lower plate 20 attached to the seat track 8, The upper plate 10 is rotatably disposed on the lower plate 20 by the price means and the upper surface is attached to the lower portion of the seat cushion (2), And a control unit (38) for operating the price means in accordance with a signal transmitted from the collision / shock sensor (40) to rotate the top plate (10) to rotate the front seat. The method of claim 1, The price means is a price portion 14 formed in the extension end 12 extending radially outward from the circumferential surface of the top plate 10, An inflator 30 which is operated according to a signal transmitted from the control unit 38 to explode compressed gas, Automobile front seat, characterized in that made of a gas bag (34) for rotating the upper plate (10) by hitting the price portion (14) by the gas flowing in accordance with the operation of the inflator (30). The method of claim 2, The lower plate 20 is provided with a stopper 22 which prevents the upper plate 10 from rotating by a predetermined angle θ or more when the upper plate 10 is rotated due to the expansion of the gas bag 34. Car front seat.