KR20200140988A - Seat cushion system for vehicle to reduce the distance traveled by passenger in the event of a collision or sudden braking - Google Patents

Abstract

The present invention relates to an automotive seat cushion apparatus for reducing the movement distance of a passenger when a vehicle collides or suddenly brakes. The apparatus includes: a parcel cushion part separated from one front part of a seat cushion part to be moved; an operating part placed in a lower part of the parcel cushion part to lift the parcel cushion part up and down; and a control part controlling the operating part. Thus, the control part sensing a vehicle collision or sudden braking situation sends a signal to the operating part to enable the operating part to lift the parcel cushion part up such that a leg part of a passenger is folded upward, thereby shortening the distance by which the passenger moves forward, which can lead to a reduction in a secondary injury to the passenger caused by a shock from the deployment of an airbag or the fastening pressure of a safety belt. Moreover, the control part sensing the stop or acceleration of the vehicle operates the operating part to make the parcel cushion part return to its original position, thereby enabling the legs of the passenger to be unfolded to their original positions.

Description

Seat cushion system for automobiles to shorten the movement distance of passengers in case of vehicle crash and sudden braking {SEAT CUSHION SYSTEM FOR VEHICLE TO REDUCE THE DISTANCE TRAVELED BY PASSENGER IN THE EVENT OF A COLLISION OR SUDDEN BRAKING}

The present invention relates to a seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle collision accident and sudden braking, and more particularly, when a frontal collision accident occurs of the vehicle and an emergency braking situation occurs in a vehicle equipped with an emergency brake system By shortening the movement distance of passengers moving to the front of the vehicle by reducing vehicle acceleration, it reduces the injuries of passengers from the airbag impact to the passengers caused by the deployment of the airbags, or secondary injuries such as internal rupture or bruises caused by seat belt pressure. It relates to a seat cushion device for automobiles for reducing.

Typically, vehicles carry occupants. Vehicles are equipped with seat belt devices and airbag devices for the safety of occupants such as drivers and passengers. For example, a three-point or two-point seat belt device is installed on each seat of a vehicle. In addition, airbag devices are installed on both sides of the front side. The seat belt device includes a retainer and an inflator, and the airbag device includes an inflator and an airbag cushion. When a certain amount of external shock is applied to the vehicle due to a vehicle collision or collision, the inflator inside the retainer explodes by the current signal transmitted from the airbag controller, and the retainer is fixed by the gas generated therein to confine the passenger's upper body to the seat. Protect the upper body. In addition, the inflator of the airbag device explodes by another current signal transmitted from the airbag controller, and the airbag cushion is inflated by the gas generated therein to prevent the passenger from colliding with the vehicle front portion between the vehicle front portion and the passenger.

However, in an actual vehicle frontal collision or collision, the passenger's upper body and lower body move to the front of the vehicle by acceleration and are impacted by the inflatable airbag cushion, causing injuries to the head and chest, or by impacting the knee area on the dashboard panel. Also wears. In addition, the chest area may be injured by the seat belt that restrains the passenger's upper body, and in severe cases, severe injuries such as internal rupture may occur due to pressure on the lower abdomen of the seat belt. This is also a similar situation in a vehicle equipped with an emergency braking system. When the emergency braking system is activated and the vehicle is suddenly stopped, a movement of the passenger to the front of the vehicle occurs due to a decrease in vehicle acceleration, and at this time, the head or knees on the dashboard panel of the vehicle The area may be shocked and injured, or the chest area may be injured by the seat belt. Accordingly, there is a need to minimize passenger behavior during vehicle collision and collision accidents, or when operating an emergency braking system to improve this.

The present invention has been devised to improve the above problems, and in case of a frontal collision or collision of a vehicle, or when a vehicle is suddenly stopped due to the operation of an emergency braking device, injuries caused by a passenger's seat belt or by an airbag cushion and a dash panel impact. It is an object of the present invention to provide a seat cushion device for a vehicle capable of minimizing a passenger's behavior in order to reduce it.

A seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle crash accident and sudden braking according to the present invention for achieving the above object comprises: a seat cushion; and a parcel cushion that can move upward as a front portion of the seat cushion And an operation unit disposed under the seat cushion unit to operate the parcel cushion unit to move upward; and a control unit for controlling the operation unit.

The seat cushion part connects the parcel cushion part to the left and right holder parts acting as a central axis through which the parcel cushion part can rotate; and a frame part disposed below the parcel cushion part to install the operation part and the control part; It characterized in that it comprises a.

The parcel cushion part is assembled to the left and right holder parts of the seat cushion part to serve as a central axis through which the parcel cushion part can rotate; and left and right hinge parts connected to the operation part; It features.

The operation unit is mounted on the frame unit, and left and right guiders are mounted vertically on left and right sides of the frame unit; and a worm shaft unit disposed in the center of the frame unit in a vertical direction; and a worm shaft unit to rotate the worm shaft unit. And a slider connected to the left and right guiders and being bitten by the worm shaft and movable forward and backward according to the rotation of the worm shaft; and one end is connected to the left and right of the slider part The other end is characterized in that it comprises a; left and right lifter parts connected to the left and right hinge parts of the parcel cushion.

The control unit includes an acceleration sensor unit capable of measuring the deceleration speed of the vehicle; and a microcomputer unit configured to control the operation of the motor unit by analyzing a signal of the acceleration sensor unit; and a power supply for supplying power for the operation of the control unit and the motor unit And a communication unit capable of receiving deceleration, stop, and acceleration information of the vehicle by accessing the vehicle internal communication network as necessary.

According to the present invention, a seat cushion device for a vehicle for shortening the movement distance of a passenger in the event of a vehicle crash and sudden braking is provided in the front of the seat cushion by an operation unit receiving an operation signal from a control unit that senses the sudden braking situation of the vehicle. The cushion part, the rotating rod part connected to the seat cushion part holder part, is the center axis, and the passenger's leg is folded upward as it goes up, which shortens the distance the passenger's body comes forward, and the impact or seat belt when the airbag is deployed. Can reduce passenger injuries from pressure.

1 is a view schematically showing a state before operation of a seat cushion device for a vehicle for shortening a movement distance of a passenger during a vehicle crash accident and sudden braking according to an embodiment of the present invention.
2 is a view schematically showing a state after operation of a seat cushion device for a vehicle for shortening a movement distance of a passenger during a vehicle crash accident and sudden braking according to an embodiment of the present invention.
3 is a view schematically showing the interior of a control unit of a seat cushion device for a vehicle for shortening a movement distance of a passenger during a vehicle crash accident and sudden braking according to an embodiment of the present invention.

Details of the object and the technical configuration of the present invention and the effects of the operation thereof will be more clearly understood by the following detailed description based on the accompanying drawings in the specification of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The thickness of the lines shown in the drawings, the size, shape, etc. of the elements may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

1, a view schematically showing a state before operation of a seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle collision accident and sudden braking according to an embodiment of the present invention, and FIG. 2 is an embodiment of the present invention. It is a view schematically showing a state after operation of a seat cushion device for a vehicle for shortening a movement distance of a passenger during a vehicle crash accident and sudden braking according to the embodiment. 3 is a view schematically showing the interior of a control unit of a seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle collision accident and sudden braking according to an embodiment of the present invention. 1, 2, and 3, a seat cushion device 1 for a vehicle for shortening the movement distance of a passenger during a vehicle collision accident and sudden braking according to an embodiment of the present invention includes a seat cushion unit 100 and a parcel. It characterized in that it comprises a cushion unit 200, an operation unit 300, and a control unit 400.

The seat cushion unit 100 may be made of a cover made of leather or fiber in a material having a cushion for a passenger to sit on, and the left side to which the parcel cushion unit 200, which is a front part of the seat cushion unit 100, can be connected. And a frame unit 130 disposed under the right holder unit 110 and 120 and the parcel cushion unit 200 and on which the operation unit 300 and the control unit 400 are installed.

The parcel cushion unit 200 is connected to the left and right holder units 110 and 120 of the seat cushion unit 100 to operate with a rotating rod unit 210 operating as a rotation shaft through which the parcel cushion unit 200 can rotate. It characterized in that it includes left and right hinge portions 220 and 230 connected to the unit 300.

The operation unit 300 is installed in the frame unit 130, and the left and right guiders 310 and 320 and the center of the frame unit 130 are mounted vertically on the left and right sides of the frame unit 130 The motor unit 340 and left and right guiders 310 and 320 are connected to the worm shaft unit 330 and the worm shaft unit 330 installed in the vertical direction to rotate the one shaft unit 330 A slider that is connected to the worm shaft part 330 and can move forward and backward along the left and right guiders 310 and 320 when the worm shaft part 330 is rotated by the motor part 340 The part 350 and one end are connected to the left and right sides of the slider part 350, respectively, and the other end is connected to the left and right hinge parts 220 and 230 of the parcel cushion part 200, respectively. It characterized in that it includes a lifter unit (360, 370).

The control unit 400 includes an acceleration sensor unit 410 capable of detecting a deceleration speed of the vehicle and a microcomputer unit 420 capable of controlling the operation of the motor unit 340 by receiving signals from the acceleration sensor unit 410. A communication unit 430 capable of receiving vehicle deceleration speed information using an internal communication network and transmitting a signal to the microcomputer unit 420 and a power supply unit capable of supplying operating power to the control unit 400 and the motor unit 340 It characterized in that it includes (440).

The operation of the seat cushion device 1 for a vehicle for reducing the movement distance of a passenger during a vehicle crash accident and sudden braking according to an embodiment of the present invention having the above structure will be described as follows.

The control unit 400, which detects the braking situation or the sudden braking situation before the vehicle collision, operates the operation unit 300 so that the parcel cushion unit 200 connected to the left and right holder units 110 120 of the seat cushion unit 100 By raising the parcel cushion part 200 with the rotating rod part 210 upward on the center axis, the passenger's leg can be folded toward the passenger's body, thereby shortening the movement distance for the passenger to move forward. It can reduce the injuries of the passengers caused by the injuries of the passengers or the injuries of the passengers caused by the compressive force of the seat belt.

According to an embodiment of the present invention, the seat cushion device 1 for a vehicle for shortening the movement distance of a passenger during a vehicle collision accident and sudden braking is provided by a driver who recognizes the vehicle collision situation and operates the vehicle brake or is equipped with an emergency brake system. When the acceleration sensor unit 410 of the control unit 400 detects the deceleration of the vehicle in a sudden braking situation in the vehicle and transmits a signal to the micom unit 420, the micom unit 420 performs the operation unit 300 according to the internal algorithm. ) Can transmit an operation signal to the motor unit 340.

The vehicle seat cushion device 1 for shortening the movement distance of a passenger during a vehicle collision accident and sudden braking according to an embodiment of the present invention transmits vehicle deceleration information to the communication unit 430 of the controller 400 through an internal communication network. When is received and transmitted to the micom unit 420, the micom unit 420 may transmit an operation signal to the motor unit 340 of the operation unit 300 according to an internal algorithm.

The motor unit 340, which has received the operation signal from the micom unit 420, rotates the worm shaft unit 330 so that the slider unit 350 that is bitten by the worm shaft unit 330 is moved to the left and right guiders 310 ( 320), and by moving the left and right lifters 360 and 370 connected to the left and right sides of the slider unit 350 according to the movement of the slider unit 350, the left and right lifters The parcel cushion part 200 connected to the parts 360 and 370 is raised upward on the center axis of the rotating rod part 210 connected to the left and right holder parts 110 and 120 of the seat cushion part 100 At this time, the passenger's leg is raised upward and folded toward the passenger's body, thereby reducing the force of the passenger to move forward. As a result, the overall movement distance of the passenger is shortened, and injuries to the passenger due to an impact caused by the deployment of the airbag or the injury to the passenger from the restraint pressure on the body of the seat belt can be reduced.

The control unit 400 of the seat cushion device 1 for a vehicle for reducing the movement distance of a passenger during a vehicle collision accident and sudden braking according to an embodiment of the present invention is a vehicle deceleration from the acceleration sensor unit 410 or the communication unit 430 When there is no change signal of the degree for a certain period of time, or when vehicle acceleration information according to the acceleration situation of the vehicle is received again from the acceleration sensor unit 410 or the communication unit 430, a signal is transmitted to the motor unit 340 and the motor unit 340 The worm shaft unit 330 can be rotated in the opposite direction to move the slider unit 350 to the rear along the left and right guiders 310 and 320, and the slider unit 350 is moved to the rear and original position. Accordingly, by bringing the left and right lifter units 360 and 370 to their original positions, the parcel cushion unit 200 connected to the left and right lifter units 360 and 370 by left and right hinge units 220 and 230 is The rotating rod part 210 connected to the left and right holder parts 110 and 120 of the seat cushion part 100 may be lowered to the original position along the central axis, and the passenger's leg may be extended to the original position.

The power supply unit 440 of the seat cushion device 1 for a vehicle for reducing the movement distance of a passenger during a vehicle collision accident and sudden braking according to an embodiment of the present invention is operated by the motor unit 340 and the control unit 400. It can supply the necessary power.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only illustrative, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand.

Therefore, the true technical protection scope of the present invention should be determined by the claims.

100: seat cushion 110: left holder
120: right holder part 130: frame part
200: parcel cushion part 210: rotating rod part
220: left hinge part 230: right hinge part
300: operation part 310: left guider part
320: right guide part 330: worm shaft part
340: motor unit 350: slider unit
360: left lifter part 370: right lifter part
400: control unit 410: acceleration sensor unit
420: microcomputer unit 430: communication unit
440: power supply unit

Claims (5)

Seat portion;
A seat cushion portion in which a passenger of the seat portion can sit and a front portion of the seat portion can be separated;
A parcel cushion that is partially separated from the front of the seat cushion and is capable of rotating around an axis;
An operation unit capable of shortening a movement distance of a passenger by lifting the parcel cushion unit around an axis; And
A control unit for operating the operation unit; a seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle crash accident and sudden braking, comprising:
The method of claim 1, wherein the seat cushion
Left and right holder parts connected to the parcel cushion to connect a rotating shaft through which the parcel cushion may rotate; And
A seat cushion device for a vehicle for reducing the movement distance of a passenger during a vehicle crash accident and sudden braking, comprising; a frame part disposed under the parcel cushion part and equipped with the operation part and the control part.
The method of claim 1, wherein the parcel cushion
A rotating rod portion connected to the left and right holder portions of the seat cushion portion and serving as a rotation axis of the rotational movement of the parcel cushion portion; And
Left and right hinge parts connected to the operation part; a seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle crash accident and sudden braking, comprising:
The method of claim 1, wherein the operation unit
Left and right guiders installed vertically on left and right sides of the frame part;
A worm shaft part vertically installed in the center of the frame part;
A motor part connected to the one shaft part and capable of rotating the worm shaft part;
A slider part connected to the worm shaft part and connected to the left and right guiders to move forward and backward along the left and right guiders when the worm shaft part is rotated by the motor part; And
Vehicle collision accident and sudden braking, comprising: one end connected to the left and right sides of the slider part, and the other end connected to the left and right hinge parts of the parcel cushion part, respectively. Seat cushion device for automobiles to shorten the movement distance of passengers in the city
The method of claim 1, wherein the control unit
A microcomputer unit controlling the motor unit;
An acceleration sensor unit capable of transmitting deceleration information of a vehicle in a crash or sudden braking situation of the vehicle to the microcomputer unit or a stop or acceleration situation of the vehicle afterwards;
A communication unit for receiving and transmitting information on deceleration, stop, and acceleration of the vehicle to the microcomputer through an internal communication network; And
A seat cushion device for a vehicle for shortening the movement distance of a passenger during a vehicle crash accident and sudden braking, comprising: a power supply unit capable of supplying power required for the operation of the motor unit and the control unit

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