KR20230072137A - Seat lifter for vehicle - Google Patents

Abstract

The present invention relates to a vehicle seat lifter. According to the present invention, the introduced vehicle seat lifter comprises: an actuator formed to connect a front end part of a seat rail provided at a vehicle seat lower part and a floor of a vehicle, connected to a collision sensor of the vehicle, and, when a collision signal is received, activated to move the front end part of the seat rail upward; and a hinge bracket provided at a rear end part of the seat rail to connect the seat rail to the floor of the vehicle, and bent so that a vehicle seat rotates around the rear end part of the seat rail when the actuator operates. An objective of the present invention is to prevent a passenger from moving forward and getting an injury.

Description

Vehicle seat lifter {SEAT LIFTER FOR VEHICLE}

The present invention relates to a seat lifter for a vehicle, and relates to a technology for rotating the seat rearward by moving the front end of the seat upward in the event of a vehicle collision.

The present invention relates to a safety device for a vehicle seat installed on a seat of a vehicle, and more particularly, to minimize the secondary impact pressure applied to the human body of a driver or occupant in the event of a front/rear collision of a vehicle, thereby reducing fatal It relates to a safety device for a vehicle seat that can prevent human injury.

In general, vehicle collisions are likely to lead to large-scale accidents, and at this time, a fatal risk to the lives of drivers or occupants is caused.

In other words, even if the driver or passenger is wearing a seatbelt, when a vehicle collides, the body of the driver or passenger is momentarily tilted forward due to the collision pressure and receives a primary impact.

At this time, the seat belt provided as a safety device cannot withstand the pressure of the body leaning forward, and the driver or occupant protrudes forward and collides with the vehicle body.

Thereafter, the vehicle rapidly decelerates and stops, and at the same time, the body, which was tilted forward, is tilted backward due to the reaction action at the time of the collision, and collides with the fixed seat to receive a secondary impact.

That is, as the body is tilted back, the upper body including the head collides with the seat back and the headrest to receive a severe blow, and the secondary impact causes more fatal damage to the body and human life.

The matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art.

KR 20-0420690 Y1

The present invention has been proposed to solve this problem, and the purpose of the present invention is to prevent a passenger from being injured by moving forward by rotating the seat rearward in the event of a vehicle collision by being coupled to a vehicle seat and the floor of the vehicle. there is.

The vehicle seat lifter according to the present invention is formed to connect the front end of a seat rail provided under a vehicle seat and the floor of the vehicle, and is connected to a collision detection sensor of the vehicle and operated when a collision signal is received, so that the front end of the seat rail moves upward. an actuator that operates to move; And it is provided at the rear end of the seat rail to connect the seat rail with the floor of the vehicle, and when the actuator is operated, the seat of the vehicle can be bent so as to rotate around the rear end of the seat rail.

A pair of symmetrical seat rails spaced apart in the transverse direction of the seat cushion may be provided, and an actuator and a hinge bracket may be formed as a pair to correspond to the pair of seat rails.

The actuator includes a housing with a lower part connected to the floor of the vehicle, a cover covering the upper part of the housing and connected to the front end of the seat rail, an elastic member compressed and stored in the housing, the lower part connected to the housing and the upper part connected to the cover, and the cover housing A separation module may be included that is fixed to and is connected to a collision detection sensor of the vehicle to release the connection between the cover and the housing when a collision signal is received and to move the cover upward by elasticity of the elastic member.

The actuator may further include a housing bracket connecting the housing and the floor of the vehicle.

The separation module may include a tether connecting the housing and the cover and a disconnection unit provided on the housing and connected to the tether and connected to the collision detection sensor to release the connection from the tether when a collision signal is received.

The elastic member is compressed by a compression spring and stored in the housing, and when the connection between the cover and the housing is released, the compressed length is restored and the cover can be moved upward.

The hinge bracket may include a hinge portion bent so that the front end of the seat rotates rearward when the actuator is operated, and a coupling portion coupled to the floor of the vehicle.

The hinge part includes a first bent part that is bent from the rear to the front and extended forward and a second bent part that is bent backward and extended to the rear so as to overlap the first bent part, and when the actuator operates, the first bent part is unfolded and the seat The front end of can be rotated backward.

An actuator provided to extend upward is formed at the front end of the seat rail provided under the seat according to the present invention, and a hinge bracket formed to be bent is provided at the rear end of the seat rail. As the front end of the seat is moved upward and the hinge bracket is bent and the seat is rotated around the rear end of the seat rail, the passenger is prevented from moving forward by inertia, preventing the passenger from being injured due to external impact. There is an effect.

1 is a perspective view of a vehicle seat lifter according to an embodiment of the present invention;
1 is a special cross-sectional view showing the operation of a vehicle seat lifter according to an embodiment of the present invention;
3 is a perspective view of an actuator of a seat lifter for a vehicle according to an embodiment of the present invention;
4 is an exploded perspective view of an actuator of a seat lifter for a vehicle according to an embodiment of the present invention;
5 is a side view illustrating the operation of an actuator of a vehicle seat lifter according to an embodiment of the present invention;
6 is a perspective view of a hinge bracket of a vehicle seat lifter according to an embodiment of the present invention;
7 is a side view illustrating bending of a hinge bracket of a vehicle seat lifter according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments of the present invention disclosed in this specification or application are merely illustrated for the purpose of explaining the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. It may be and should not be construed as being limited to the embodiments described in this specification or application.

Embodiments according to the present invention can apply various changes and can have various forms, so specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, or substitutes included in the spirit and technical scope of the present invention.

Terms such as first and/or second may be used to describe various components, but the components should not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another component, e.g., without departing from the scope of rights according to the concept of the present invention, a first component may be termed a second component, and similarly A second element may also be referred to as a first element. When an element is referred to as being "connected" or "connected" to another element, it is directly connected or connected to the other element. It may be, but it should be understood that other components may exist in the middle. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle. Other expressions describing the relationship between elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to" should be interpreted similarly.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to indicate that there is an embodied feature, number, step, operation, component, part, or combination thereof, but one or more other features or numbers However, it should be understood that it does not preclude the presence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this specification, they are not interpreted in an ideal or excessively formal meaning. .

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like members.

Figure 1 is a perspective view of a vehicle seat 100 lifter according to an embodiment of the present invention, Figure 1 is a special cross-sectional view showing the operation of the vehicle seat 100 lifter according to an embodiment of the present invention, Figure 3 is the present invention A perspective view of the actuator 300 of the vehicle seat 100 lifter according to an embodiment of the present invention, Figure 4 is an exploded perspective view of the actuator 300 of the vehicle seat 100 lifter according to an embodiment of the present invention, Figure 5 is this Side view showing the operation of the actuator 300 of the vehicle seat 100 lifter according to an embodiment of the present invention, Figure 6 is a perspective view of the hinge bracket 210 of the vehicle seat 100 lifter according to an embodiment of the present invention 7 is a side view showing the bending of the hinge bracket 210 of the vehicle seat 100 lifter according to an embodiment of the present invention.

A preferred embodiment of the vehicle seat 100 lifter according to the present invention will be described with reference to FIGS. 1 to 7 .

In the event of a frontal collision of a vehicle, the passenger's body moves forward due to inertia, or a submarine phenomenon in which the body moves downward of the seat belt 100 may occur.

In order to prevent this, the vehicle could protect the movement of passengers through airbags prepared in front of the passengers. However, the wider the space, the more difficult it is to absorb energy with only two devices. There was a problem that the airbag could not protect.

The present invention was devised to avoid this problem.

The vehicle seat 100 lifter according to the present invention is formed to connect the front end of the seat rail 200 provided under the vehicle seat 100 and the floor of the vehicle, and is connected to the collision detection sensor of the vehicle to receive a collision signal. The actuator 300 is operated so that the front end of the seat rail 200 moves upward; And provided at the rear end of the seat rail 200 to connect the seat rail 200 to the floor of the vehicle, and when the actuator 300 is operated, the seat 100 of the vehicle rotates around the rear end of the seat rail 200 can be bent

As shown in FIG. 1, the seat 100 of a vehicle may be composed of a seat 100 cushion in contact with the passenger's pelvis and femur and a seat 100 back in contact with the passenger's back, and the seat 100 cushion A seat rail 200 provided to slide the seat 100 in the front and rear directions may be disposed at the lower portion of the seat 100 .

The actuator 300 may be provided to be mounted on the front end of the seat rail 200 to connect the front end of the seat rail 200 and the floor of the vehicle, and move the front end of the seat rail 200 upward during operation. can

As shown in FIG. 2, the actuator 300 is connected to the collision sensor 400 of the vehicle, and when a vehicle collision occurs, the collision sensor detects the collision and transmits an operation signal to the actuator 300, and the actuator 300 It can be operated immediately upon receiving an operation signal from

The hinge bracket 210 is coupled to connect the rear end of the seat rail 200 and the floor of the vehicle as one side is coupled to the rear end of the seat rail 200 and the other side is coupled to the floor of the vehicle, and the actuator 300 ) is bent during operation, the front end is moved upward around the rear end of the seat rail 200, and the vehicle seat 100 can be rotated rearward.

Through this, when a vehicle collision occurs, the actuator 300 is operated, the front end of the seat rail 200 is moved upward, and the hinge bracket 210 is bent so that the seat 100 is moved around the rear end of the seat rail 200. As it is rotated, the passenger is prevented from moving forward by inertia, thereby preventing the passenger from being injured due to an external impact.

The seat rails 200 are spaced apart in the transverse direction of the seat 100 cushion to provide a symmetrical pair, and the actuator 300 and the hinge bracket 210 are paired to correspond to the pair of seat rails 200, respectively. can be formed

As shown in FIG. 1, a pair of seat rails 200 may be provided on the lower surface of the cushion of the seat 100 spaced apart in the lateral direction of the vehicle, and an actuator 300 and a hinge bracket may be provided as a pair, respectively. It is connected to the front and rear ends of the seat rail 200 to firmly fix the seat 100 to the floor of the vehicle, and in the event of a crash, the actuators 300 connected to both sides of the seat rail 200 are the same It is operated to move the front end of the seat 100 upward, and a pair of hinge brackets 210 connected to the rear end of the seat rail 200 are bent, respectively, to accurately rotate the seat 100 backward, so that the passenger moves forward. movement can be prevented.

The following describes the operation of the actuator 300 as an embodiment of the actuator 300.

3 to 5, the actuator 300 has a lower portion of the actuator 300, a housing 320 connected to the floor of the vehicle, a cover 310 covering the upper portion of the housing 320, and a seat rail 200 The cover 310 connected to the front end of the housing 320 is compressed and stored, the lower end is connected to the housing 320 and the upper end is connected to the cover 310, the elastic member 330 and the cover 310 are connected to the housing ( 320) and is connected to the collision detection sensor of the vehicle, and when a collision signal is received, the cover 310 and the housing 320 are disconnected, and the cover 310 moves upward by the elasticity of the elastic member 330. Separation modules 340 and 350 may be included.

The housing 320 may be fixed to the floor of the vehicle, a storage space is provided therein, an upper portion of the storage space is open, and a compressible elastic member 330 may be compressed by an external force and stored in the storage space. there is.

The cover 310 may be disposed on the upper part of the housing 320 so as to cover 310 the upper part of the open storage space of the housing 320, and the elastic member 330 has one end of the storage space of the housing 320. It is fixed to the lower part of and the other end can be coupled to the lower surface of the cover 310, and the external force of the elastic member 330 compressed inside the housing 320 when the connection between the cover 310 and the housing 320 is released. As the cover 310 is released and extended in the longitudinal direction, the cover 310 moves upward, and thus the front end of the seat rail 200 connected to the cover 310 can move upward.

At this time, the elastic part can be bent in a direction crossing the longitudinal direction by elasticity, and the seat 100 can be rotated based on the rear end of the seat rail 200.

In addition, the cover 310 may be firmly fixed to the seat rail 200 through a bolting connection with the seat rail 200 .

The separation modules 340 and 350 connect and fix the housing 320 and the cover 310, and are connected to the collision sensor 400 of the vehicle to detect collisions in the collision sensor 400 and send operation signals to the separation modules 340 and 350. When delivered, the separation modules 340 and 350 are operated to separate the fixed housing 320 and the cover 310 from each other, and then, as the compressed elastic member 330 expands, the cover 310 moves upward. can

The actuator 300 may further include a housing bracket 360 connecting the housing 320 and the floor of the vehicle.

As shown in FIG. 4 , the housing 320 is coupled to the floor of the vehicle to be fixed to the floor of the vehicle, and the housing 320 may be coupled to the floor of the vehicle.

In addition, the housing bracket 360 extends upward from the height of the housing 320 so that the housing 320 is inserted into the housing bracket 360 and fixed to be integrally formed with the floor of the vehicle.

Through this, there is an effect of protecting the elastic member 330 housed in the housing 320 even from external shock or vibration, and also the separation modules 340 and 350 can be protected.

The housing bracket 360 shown in FIG. 4 may be formed in various shapes as an embodiment of the present invention.

In the separation modules 340 and 350, the tether 340 connecting the housing 320 and the cover 310 and the housing 320 are provided and connected to the tether 340 and connected to the collision detection sensor to receive a collision signal. A disconnection unit 350 that disconnects the connection with the 340 may be included.

As shown in FIGS. 3 and 4 , the disconnection unit 350 provided in the lower part of the storage space inside the housing 320 and connected to the crash sensor 400 of the vehicle can receive an operation signal from the crash sensor 400. .

The tether 340 extends in the vertical direction, and the upper end portion may be coupled to the cover 310 by the fastening portion 341, and the coupling portion 212 couples the tether 340 to the cover 310 and covers the cover at the same time. (310) can be fixed to the front end of the seat rail (200).

In addition, the lower end of the tether 340 may be connected to the disconnection unit 350, and the disconnection unit 350 disconnects from the tether 340 when an operation signal is received from the collision sensor 400, and the cover 310 and The coupling between the housings 320 may be released. At this time, as the coupling between the cover 310 and the housing 320 is released, the external force applied to the elastic member 330 disappears, and the elastic force is applied upward so that the compressed elastic member 330 returns to its original state, so that the seat rail ( 200) can be moved upward.

The elastic member 330 is compressed as a compression spring and stored in the housing 320, and when the connection between the cover 310 and the housing 320 is released, the compressed length is restored and the cover 310 can be moved upward.

As shown in FIGS. 3 to 5, the elastic member 330 inserted into the housing 320 may be formed in a spring shape, and is compressed and accommodated in the storage space of the housing 320 through the compression feature of the spring. The separation modules 340 and 350 fix the cover 310 so that an external force may be applied to the elastic member 330 until the cover 310 is separated from the housing 320.

In addition, as the elastic member 330 is formed as a compressible spring, an inner space of the spring may be formed, and the separation modules 340 and 350 may be disposed in the inner space, and the central portion of the cover 310 and the housing 320 may be formed. By connecting the central portion, the separation modules 340 and 350 can firmly fix the cover 310 to the housing 320 .

The hinge bracket 210 may include a hinge portion 211 bent so that the front end of the seat 100 rotates rearward when the actuator 300 is operated, and a coupling portion 212 coupled to the floor of the vehicle.

As shown in FIG. 6 , the hinge bracket 210 may be formed to extend rearward from the rear end of the seat rail 200 or be coupled to the rear end of the seat rail 200 .

When the hinge bracket 210 is formed as a separate object, one end is coupled to the seat rail 200, and the coupling portion 212 formed at the other end is firmly fixed to the floor of the vehicle by bolting.

In addition, the hinge part 211 formed on the middle side is provided so that the actuator 300 can be easily bent during operation, thereby preventing other parts of the hinge bracket 210 from being damaged.

The hinge part 211 includes a first bent part 211a that is bent from the rear to the front and extended forward, and a second bent part 211b that is bent backward and extended to the rear so as to overlap the first bent part 211a. Included, when the actuator 300 is operated, the first bent portion 211a is unfolded and the front end of the seat 100 can be rotated backward.

As shown in FIGS. 6 and 7, the hinge portion 211 is provided with a first bent portion 211a that is bent forward from the rear, and is bent backward again in a bent state in the first bent portion 211a. As the two-bent part 211b is provided, the coupling part 212 extends from the second bent part 211b and can be combined with the floor at the rear of the seat rail 200, and the actuator 300 is operated so that the seat rail When the front end of the 200 is moved upward, the sheet 100 may be rotated backward as the bent first bent portion 211a is unfolded.

In addition, as the second bent portion 211b overlaps and extends backward, it is possible to prevent easy deformation when an external force is applied in a direction crossing the direction in which the hinge portion 211 extends.

Although shown and described in relation to specific embodiments of the invention, it is common in the art that the present invention can be variously improved and changed without departing from the technical spirit of the present invention provided by the claims below. It will be self-evident to those who have knowledge of

100: sheet
200: seat rail
210: hinge bracket
211: hinge part
211a: first bent portion
211b: second bent portion
212: coupling part
300: actuator
310: cover
320: housing
330: elastic member
340: tether
341: fastening part
350: disconnection unit
360: housing bracket
400: collision sensor

Claims (8)

An actuator formed to connect the front end of the seat rail provided under the vehicle seat and the floor of the vehicle, connected to the collision detection sensor of the vehicle and operated when a collision signal is received to move the front end of the seat rail upward; and
A seat lifter for a vehicle comprising: a hinge bracket provided at the rear end of the seat rail to connect the seat rail with the floor of the vehicle and bent so that the seat of the vehicle rotates around the rear end of the seat rail when the actuator is operated. The method of claim 1,
A seat lifter for a vehicle, characterized in that the seat rails are provided in a symmetrical pair spaced apart in the transverse direction of the seat cushion, and the actuator and the hinge bracket are formed in a pair to correspond to the pair of seat rails. The method of claim 1,
The actuator includes a housing with a lower part connected to the floor of the vehicle, a cover covering the upper part of the housing and connected to the front end of the seat rail, an elastic member compressed and stored in the housing, the lower part connected to the housing and the upper part connected to the cover, and the cover housing A seat lifter for a vehicle, characterized in that it includes a separation module that is fixed to and is connected to a collision detection sensor of the vehicle to release the connection between the cover and the housing when a collision signal is received and to move the cover upward by elasticity of the elastic member. The method of claim 3,
The vehicle seat lifter, characterized in that the actuator further includes a housing bracket connecting the housing and the floor of the vehicle. The method of claim 3,
A seat lifter for a vehicle, characterized in that the separation module includes a tether connecting the housing and the cover and a disconnection unit provided on the housing and connected to the tether and connected to a collision detection sensor to disconnect the connection from the tether when a collision signal is received. The method of claim 3,
The elastic member is compressed by a compression spring and stored in the housing, and when the connection between the cover and the housing is released, the compressed length is restored and the cover is moved upward. The method of claim 1,
The hinge bracket is a vehicle seat lifter, characterized in that it includes a hinge portion bent so that the front end of the seat rotates rearward when the actuator is operated, and a coupling portion coupled to the floor of the vehicle. The method of claim 7,
The hinge part includes a first bent part that is bent from the rear to the front and extended forward and a second bent part that is bent backward and extended to the rear so as to overlap the first bent part,
A vehicle seat lifter, characterized in that when the actuator is operated, the first bent portion is unfolded and the front end of the seat is rotated rearward.

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