KR102141904B1 - Device for adjusting seat angle of vehicle - Google Patents

Abstract

The present invention relates to an angle adjustment device for a vehicle seat that allows a driver and a passenger to simultaneously adjust the tilting angle of the seat cushion and the reclining angle of the seatback to take a posture such as rest.
To this end, the present invention can provide a more comfortable and comfortable posture for the passenger by allowing the seat cushion to be tilted and the seat reclining at the same time when the passenger wants to take a posture such as a rest. Compared to the previous one, seat cushion tilting and seat back reclining are operated by two separate mechanisms (including two motors). Provided is an angle adjusting device for a vehicle seat that can reduce the number of parts, such as a motor and a link, thereby reducing manufacturing cost.

Description

DEVICE FOR ADJUSTING SEAT ANGLE OF VEHICLE}

The present invention relates to an angle adjusting device for a vehicle seat, and more specifically, an angle adjusting device for a vehicle seat that allows a driver and a passenger to simultaneously adjust the tilting angle of the seat cushion and the reclining angle of the seatback to take a posture such as rest. It is about.

Mechanisms for reclining the seat back are basically applied to the seat of the vehicle in consideration of the rest and sleeping of the passenger.

In addition to the mechanisms such as reclining applied to the seat of the current vehicle, the autonomous vehicles to be released in the future include various mechanisms that can realize various postures in consideration of multi-party meetings and conversations, viewing outside scenery, reading, relaxing, and sleeping. Can be applied.

Accordingly, in consideration of the limited interior space of the vehicle, the mechanism structure for reclining the seat and the mechanism structure for reclining the seatback, etc., are functional convenience while simplifying as much as possible within the category that can reduce the volume and the number of parts. It should be designed and manufactured with a structure that can increase the.

In particular, when applying the seat cushion tilting and seatback reclining mechanism, it is necessary to simplify the tilting and reclining mechanism as much as possible in consideration of the limited indoor space, and also to allow the passenger to rest and sleep comfortably in a lying position. There is a need for a mechanism that simultaneously tilts the seat cushion and reclines the seat back.

The present invention has been devised in view of the above points, and when the driver and the passenger take a posture such as rest or sleep, the tilting operation of the rear end portion descending while the front end portion of the seat cushion rises, and the rear reclining operation of the seat back The object of the present invention is to provide an angle adjustment device for a vehicle seat, which allows the passengers to rest in a more comfortable posture by allowing this to be performed simultaneously.

The present invention to achieve the above object is: a seatback mainframe; A seatback lower frame integrally formed under the seatback mainframe and extending toward the seat cushion; Seat cushion lower frame fixedly mounted on the floor panel side; A front link having lower ends fixed to both sides of the front end of the seat cushion lower frame; The front end is hinged to the upper end of the front link, and the rear end is seat cushion mainframe hinged to a predetermined position of the seatback lower frame; A motor hinged to a front end in the seat cushion lower frame via a hinge bracket; A rotating shaft connected between the upper ends of the connector plates; A rotation guide shaft connected between the lower ends of the connector plate, and a driving link inserted into the rotation shaft and the rotation guide shaft; And a slider which is fastened back and forth to the lead screw shaft of the motor and hinged with the lower end of the drive link. It provides an angle adjustment device for a vehicle seat, characterized in that comprises a.

Preferably, a hinge fastening groove is formed in the lower frame of the seat back, and a hinge fastening end inserted into the hinge fastening groove and hinged is integrally formed at the rear end of the seat cushion mainframe.

In addition, the hinge bracket is characterized in that it consists of a fixed end fixed to the bottom of the front end in the seat cushion lower frame, and a hinge end extending vertically from the fixed end and hinged with the front end of the motor body.

In addition, the seat cushion lower frame is characterized in that it is mounted to the rail mounted on the floor panel to be able to move back and forth.

In addition, the rotating shaft and the rotating guide shaft is characterized in that the guide link is inserted and fastened with a driving link therebetween.

Preferably, the front end of the seatback lower frame is characterized in that a pair of connector plates for connecting the rotary shaft and the rotary guide shaft with the seat cushion lower frame are integrally formed.

In particular, both ends of the rotating shaft is characterized in that it is fastened to the upper portion of the connector plate after passing through the outer side through both sides of the seat cushion lower frame.

Moreover, both ends of the rotating guide shaft are formed in the front and rear directions at the lower ends of both sides of the seat cushion lower frame in a state arranged in parallel with the rotating shaft, and at the same time are penetrated outward through the guide holes formed inclined upward toward the front, and then the connector plate Characterized by being fastened to the lower portion.

Accordingly, when rotating in one direction of the rotating shaft, the rotating guide shaft slides toward the front of the guide hole formed in the seat cushion lower frame, and when rotating in the other direction of the rotating shaft, the rotating guide shaft slides toward the rear of the guide hole formed in the seat cushion lower frame. It is characterized by.

The present invention through the above-described problem solving means provides the following effects.

First, when the passenger wants to take a posture such as a rest, the tilting operation of the seat cushion and the rear reclining operation of the seatback can be simultaneously performed, thereby providing a more comfortable and comfortable posture to the passenger.

Second, by allowing seat cushion tilting and seat back reclining to be performed with one mechanism (using one motor), compared to the existing two seat mechanism tilting and seat back reclining operated by two separate mechanisms (including two motors). , It is possible to reduce the number of parts such as motors and links compared to the existing ones, thereby reducing manufacturing costs.

1 is an angle adjustment device for a vehicle seat according to the present invention, a perspective view showing a mechanism configuration for reclining a seat cushion and reclining a seat back,
Figure 2 is an angle adjustment device for a vehicle seat according to the present invention, a perspective view showing a state in which the mechanism configuration for seat cushion tilting and seat back reclining is covered by the seat cushion lower frame,
Figure 3 is an angle adjustment device for a vehicle seat according to the present invention, a perspective view showing by removing the lower connector portion of the seatback frame in the view of Figure 2,
Figure 4 is an angle adjustment device for a vehicle seat according to the present invention, a side view showing the state before operation,
Figure 5 is a side view showing a state after the operation, the seat cushion tilting and recline reclining at the same time as an angle adjustment device for a vehicle seat according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Attached Figure 1 is an angle adjustment device for a vehicle seat according to the present invention, a perspective view showing a mechanism configuration for seat cushion tilting and seat back reclining, and FIG. 2 shows that each mechanism configuration is covered by a seat cushion lower frame to lower the seat back It is a perspective view showing a state assembled with the frame, and FIG. 3 shows a state in which the lower connector part of the seatback frame is arbitrarily removed from the drawing of FIG. 2 to clearly show the connection structure of both ends of the rotation guide shaft.

1 to 3, the seat back main frame 100 supporting the seat back of the vehicle and the seat cushion main frame 200 supporting the seat cushion are to secure a trajectory such as tilting and reclining in a limited indoor space. It can be manufactured in a slim structure.

For reference, in the case of an autonomous vehicle, a slim structure seat will be applied to easily secure a trajectory for swiveling in a limited indoor space.

In the lower portion of the seatback main frame 100, a seatback lower frame 110 that is bent and extended toward the seat cushion to secure the seating surface of the rotating shaft 130 and the rotating guide shaft 140 is integrally formed.

In addition, a pair of connector plates 120 having a disk-shaped shape are integrally formed at the front end of the seatback lower frame 110 to be angular rotation points when reclining the seatback.

At this time, a hinge fastening groove 114 for hinge fastening with the rear end of the seat cushion mainframe 100 is formed at an intermediate position in the left and right width directions of the seat back lower frame 110, as described later.

On the other hand, the floor panel of the vehicle is fixedly mounted with a seat cushion lower frame 210 for tiltably supporting the seat cushion mainframe 200. The seat cushion lower frame 210 is an empty box-shaped structure. There are no restrictions on the shape.

Preferably, the seat cushion lower frame 210 is mounted so as to be able to move forward and backward on a normal rail 250 mounted on the floor panel, so that the seat cushion main frame 200 and the seat cushion lower frame 210 supporting the seat cushion In addition, the entire seat may be in a state that can be advanced or reversed along the rail 250, and the rail 250 is independent of the essence of the present invention and a conventional mechanism for moving the seat forward or backward can be used. Detailed description will be omitted.

As a link for supporting the front end portion of the seat cushion main frame 200 so as to be angularly rotatable on both sides of the front end portion of the seat cushion lower frame 210, the lower end portion of the front link 220 having a predetermined length is fixed.

At this time, the upper end of the front link 220 is hinged to the front end of the seat cushion main frame 200, and the rear end of the seat cushion main frame 200 is hinged to the seat back lower frame 110. do.

In more detail, the upper end of the front link 220 is hinged to both sides of the front end portion of the seat cushion main frame 200, and at the bottom of the rear end portion of the seat cushion main frame 200. The integrally formed hinge fastening end 202 is inserted into the hinge fastening groove 114 of the seatback lower frame 110 to be in a state of being hinged through a hinge pin or the like.

Thus, when the rear reclining operation of the seat back frame 100, the front end portion of the seat cushion main frame 200 becomes a state that can be rotated around the hinge connection point of the front end of the front link 220, the seat cushion main frame The rear end portion of the (200) is also capable of descending together with respect to the hinge fastening point of the hinge fastening end 202 together with the downward angular rotation of the seatback lower frame 110 (reclining operation).

According to the present invention, as a practical configuration in which the seat cushion tilting and reclining operation of the seat back are simultaneously performed inside the seat cushion lower frame 210, a mechanism including a motor and a plurality of links is installed in a predetermined arrangement. .

To this end, first, a motor 230 having a lead screw shaft 232 is mounted to the front end of the seat cushion lower frame 210 via a hinge bracket 240.

Preferably, the hinge bracket 240 is fixed to the front end of the seat cushion lower frame 210, the fixed end 242, and vertically extending from the fixed end 242, the body portion of the motor 230 It consists of a hinge end 244 that is hinged with the front end.

Accordingly, in a state where the fixed end 242 of the hinge bracket 240 is fixed to the front end of the seat cushion lower frame 210, the body part of the motor 230 is attached to the hinge end 244 of the hinge bracket 240. It is hinged so as to be angularly rotatable, and the lead screw shaft 232 of the motor 230 is arranged toward the rear.

Meanwhile, as described above, a pair of connector plates 120 having a disk-shaped shape are integrally formed at the front end of the seatback lower frame 110, and a reference point for reclining the seatback is provided between the upper ends of the connector plates 120. The rotating shaft 130 is connected, and between the lower ends of each connector plate 120, a rotating guide shaft 140 for limiting the seatback reclining angle and seat cushion tilting angle is connected.

At this time, the rotating shaft 130 and the rotating guide shaft 140 are arranged parallel to each other inside the seat cushion lower frame 210, and the rotating shaft 130 and the rotating guide shaft 140 transmit the power of the motor to the rotating shaft ( 130) and the driving link 150 for transmission to the rotation guide shaft 140 are inserted and fastened.

In particular, a slider 160 is fastened to the lead screw shaft 232 of the motor 230 so as to be able to move back and forth, and a rear end of the slider 160 is hinged with a lower end of the drive link 150.

Preferably, the rotation shaft 130 and the rotation guide shaft 140 is a guide link 170 is further inserted and fastened with a drive link 150 therebetween, and the guide link 170 is a drive link 150 While rotating the rotating shaft 130 by the motor power, while dispersing the force when the rotating guide shaft 140 is moved, the rotation of the rotating shaft 130 and the movement of the rotating guide shaft 140 are made smoother. It serves to ensure the durability of the driving link 150 by assisting the user.

On the other hand, through holes 212 in which both ends of the rotating shaft 130 protrude to the outside are formed at upper positions on both side plates of the seat cushion lower frame 210, and the rotating guide shaft 140 is positioned at the lower position. A guide hole 214 having a long elongated shape in the front-rear direction while protruding, and inclined upward toward the front is formed through.

Thus, both ends of the rotating shaft 130 protrude outward through the through holes 212 formed on both side plates of the seat cushion lower frame 210, and then are fastened to the upper portion of the connector plate 120, and also the rotation guide Both ends of the shaft 140 are penetrated outward through the guide holes 214 formed on both side plates of the seat cushion lower frame 210 and then fastened to the lower portion of the connector plate 120.

Accordingly, when the motor 230 rotates in one direction, the lead screw shaft 232 rotates in place while the slider 160 moves forward, and the lower end of the drive link 150 connected to the rear end of the slider 160 pulls. On the ground, while the rotation shaft 130 rotates in one direction, the rotation guide shaft 140 slides toward the front of the guide hole 214 of the seat cushion lower frame 210.

On the other hand, when the motor 230 is rotated in the other direction, the lead screw shaft 232 rotates in place while the slider 160 reverses, and the lower end of the drive link 150 connected to the rear end of the slider 160 While being pushed, the rotating shaft 130 rotates in the other direction while the rotating guide shaft 140 slides to the rear of the guide hole 214 of the seat cushion lower frame 210.

On the other hand, a normal switch 300 for driving one or the other direction of rotation of the motor 230 may be mounted at a predetermined position on the seat, and if the switch 300 is tilted in one direction, the motor 230 may be rotated in one direction. When a current is applied and the switch 300 is flipped in the other direction, a current for rotation in the other direction may be applied to the motor 230.

Here, the operation flow for the vehicle seat angle adjustment device of the present invention having the above-described configuration will be described.

Attached FIG. 4 is an angle adjustment device for a vehicle seat according to the present invention, and is a side view showing a state before operation, and FIG. 5 is a side view showing a state after operation in which seat cushion tilting and seat back reclining are simultaneously performed.

First, when the user tilts the switch 300 in one direction and the motor 230 rotates and rotates in one direction, the lead screw shaft 232 that is the rotation axis of the motor 230 rotates in place in one direction.

Subsequently, the slider 160 screw-coupled with the lead screw shaft 232 moves forward from the position before the operation of FIG. 4 to the position after the operation of FIG. 5 by rotation of the lead screw shaft 232 in one direction. .

Subsequently, the lower end of the drive link 150 connected to the rear end of the slider 160 is pulled forward, and at the same time, the rotation guide shaft 140 inserted into the drive link 150 is fastened to the seat cushion lower frame 210 ) Slides toward the front of the guide hole 214, and the rotating shaft 130 rotates in one direction from one place.

At this time, since both ends of the rotation guide shaft 140 are fastened to the lower portion of the connector plate 120, the rotation guide shaft 140 moves forward along the guide hole 214, thereby The lower portion is dragged together in the forward direction, and the upper portion of the connector plate 120 is rotated angularly around the rotating shaft 130 by angular rotation of the rotating shaft 130.

In more detail, the rotating shaft 130 rotates in one direction in place, and moves forward along the guide hole 214 of the rotating guide shaft 140, so that the rotating guide shaft 140 rotates At the same time, the pendulum moves toward the front centering around 130, and at the same time, the lower part of the connector plate 120 to which both ends of the rotation guide shaft 140 are connected is also the upper part of the connector plate 120 to which both ends of the rotation shaft 130 are connected. The pendulum movement toward the front will be performed.

At this time, when the rotation guide shaft 140 moves forward along the guide hole 214 inclined upward toward the front as above, the lower portion of the connector plate 120 has its upper portion (the portion connected to the rotation shaft 120). By turning to the center toward the front each rotation (clockwise angular rotation based on FIGS. 4 and 5), the seat plate lower frame 110 integral with the connector plate 120 is the connector plate 120 The reclining operation lying on the back with respect to the upper portion (the part connected to the rotating shaft 120) is performed.

Of course, the seatback mainframe 100 integral with the seatback lower frame 110 also performs a reclining operation lying on its back.

At this time, since the hinge fastening end 202 of the seat cushion main frame 200 is hinged to the hinge fastening groove 114 of the seat back lower frame 110, the seat back lower frame 110 is laid rearward. When the paper reclining operation is performed, the hinge fastening end 202 of the seat cushion mainframe 200 is pulled downward.

Accordingly, the rear end portion of the seat cushion main frame 200 descends, and the front end portion (the upper end portion of the front link 220 and the hinged portion) of the seat cushion main frame 200 rotates backwards, thereby causing the seat to rotate. The tilting operation of the cushion is made.

As such, when the passenger in the vehicle wants to take a posture such as a rest, the rear tilting operation of the seat cushion and the rear reclining operation of the seatback can be simultaneously performed, thereby providing a more comfortable and comfortable posture to the passenger. .

On the other hand, when the seat cushion tilting and seat back reclining are simultaneously performed as described above, and the seat is to be returned to the original position, the user rotates the switch 300 in the other direction and the motor 230 rotates and drives in the other direction. The lead screw shaft 232, which is the rotating shaft of 230, rotates in place in the other direction.

Subsequently, the slider 160 screw-coupled with the lead screw shaft 232 is moved backward from the position after the operation of FIG. 5 to the position after the operation of FIG. 4 by rotation of the lead screw shaft 232 in place. do.

Subsequently, the lower end of the driving link 150 connected to the rear end of the slider 160 is pushed backward, and at the same time, the rotation guide shaft 140 inserted into the driving link 150 is fastened to the seat cushion lower frame 210 ) Slides to the rear of the guide hole 214, and the rotating shaft 130 rotates in the other direction from the place.

At this time, since both ends of the rotation guide shaft 140 are fastened to the lower portion of the connector plate 120, the rotation guide shaft 140 moves backward along the guide hole 214, thereby The lower portion is dragged together to the rear, and the upper portion of the connector plate 120 is rotated angularly around the rotating shaft 130 by angular rotation in the other direction of the rotating shaft 130.

Accordingly, the seatback lower frame 110 integral with the connector plate 120 and the seatback mainframe 100 integral with the seatback lower frame 110 return to the original position.

At the same time, since the hinge fastening end 202 of the seat cushion main frame 200 is hinged to the hinge fastening groove 114 of the seat back lower frame 110, the seat back lower frame 110 is intact. As it moves back to the position, the hinge fastening end 202 of the seat cushion mainframe 200 is pulled upward.

Thus, the rear end of the seat cushion main frame 200 rises, and at the same time, the front end of the seat cushion main frame 200 (the hinged portion with the upper end of the front link 220) rotates forward, thereby making the seat The cushion can also be easily returned to the position before the tilting operation.

On the other hand, as described above, the seat operation mechanism of the present invention, which can simultaneously adjust the seat cushion tilting angle and the seatback reclining angle of the slim seat, provides comfort for drivers and passengers to rest and sleep in autonomous vehicles to be released in the future in addition to general vehicles. It can be usefully applied for the purpose of providing.

100: seatback mainframe
110: seatback lower frame
114: hinge fastening groove
120: connector plate
130: rotating shaft
140: rotating guide shaft
150: driving link
160: slider
170: Information link
200: seat cushion main frame
202: hinged end
210: seat cushion lower frame
212: through hole
214: guide hole
220: front link
230: motor
232: lead screw shaft
240: hinge bracket
242: fixed end
244: hinge
250: rail
300: switch

Claims (10)

Seatback mainframe;
A seatback lower frame integrally formed under the seatback mainframe and extending toward the seat cushion;
Rotation shaft and rotation guide shaft mounted to the seatback lower frame
Seat cushion lower frame fixedly mounted on the floor panel side;
A front link having lower ends fixed to both sides of the front end of the seat cushion lower frame;
The front end is hinged to the upper end of the front link, and the rear end is seat cushion mainframe hinged to a predetermined position of the seatback lower frame;
A motor hinged to a front end in the seat cushion lower frame via a hinge bracket;
A drive link inserted and fastened to the rotation shaft and the rotation guide shaft; And
A slider which is fastened back and forth to the lead screw shaft of the motor and hinged with the lower end of the drive link;
Including,
A pair of connector plates for connecting the rotating shaft and the rotating guide shaft with the seat cushion lower frame are integrally formed at the front end of the seat back lower frame,
The rotating shaft is connected between the upper end of the connector plate, the rotating guide shaft is connected between the lower end of the connector plate,
Both ends of the rotating guide shaft are formed in the front and rear directions at the lower ends of both sides of the seat cushion lower frame in a state arranged in parallel with the rotating shaft, and at the same time are penetrated outward through the guide holes formed inclined upward toward the front and then to the lower part of the connector plate. Angle adjustment device for a vehicle seat, characterized in that fastened.
The method according to claim 1,
An angle adjusting device for a vehicle seat, wherein a hinge fastening groove is formed in the lower frame of the seatback, and a hinge fastening end inserted into the hinge fastening groove is protruded integrally at a rear end of the seat cushion mainframe.
The method according to claim 1,
The hinge bracket is a fixed end fixed to the bottom surface of the front end of the seat cushion lower frame, and vertically extending from the fixed end of the motor body, characterized in that it consists of a hinge end hinged to the vehicle seat angle adjustment device of the vehicle seat .
The method according to claim 1,
The seat cushion lower frame is an angle adjusting device for a vehicle seat, characterized in that it is mounted on the rail mounted on the floor panel so that it can be moved back and forth.
The method according to claim 1,
An angle adjusting device for a vehicle seat, characterized in that a guide link is interposed between the rotating shaft and the rotating guide shaft with a driving link interposed therebetween.
delete delete The method according to claim 1,
Both ends of the rotating shaft is penetrated to the outside through both sides of the seat cushion lower frame, and the angle adjustment device for a vehicle seat, characterized in that fastened to the upper portion of the connector plate.
delete The method according to claim 1,
When rotating in one direction of the rotating shaft, the rotating guide shaft slides toward the front of the guide hole formed in the seat cushion lower frame, and when rotating in the other direction of the rotating shaft, the rotating guide shaft slides toward the back of the guide hole formed in the seat cushion lower frame. Vehicle seat angle adjustment device.

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