KR102540545B1 - Device for swiveling seat of vehicle - Google Patents

Abstract

The present invention relates to a seat rotation device for a vehicle that can implement various convenient functions by adopting an L-axis swivel mechanism for angularly rotating a seat forward and backward.
That is, the present invention adopts an L-axis swivel mechanism that angularly rotates a seat including a seatback and a seat cushion back and forth, so that the seat can be easily rotated based on the L-axis (longitudinal axis of the vehicle) even in a limited indoor space, It is intended to provide a car seat rotation device that can implement various convenient functions such as face-to-face mode between front and rear passengers, relaxation mode, and sleeping mode.

Description

Seat rotation device for vehicles {Device for swiveling seat of vehicle}

The present invention relates to a seat rotation device for a vehicle, and more particularly, to a vehicle seat rotation device capable of realizing various convenience functions by adopting an L-axis swivel mechanism for angularly rotating a seat forward and backward.

In the case of an autonomous vehicle that can drive without driver's control, a swivel type (rotating type) seat that can rotate and adjust the angle of the seat in a desired direction can be installed for multilateral meetings and conversations, viewing external scenery, and sleeping. there is.

In general, the conventional seat swivel mechanism is adopted in a configuration in which the seat is rotated based on the H axis (the vertical axis of the vehicle) so that the passengers seated in the second or third row face the passengers seated in the rear row, The H-axis-based swivel mechanism requires interlocking of many parts and is very complicated, and has a disadvantage in that it requires a large increase in weight and cost.

In particular, since the interior space of a vehicle is limited, it is difficult to secure a rotational trajectory when the seat is rotated on the basis of the H-axis (vertical height axis of the vehicle).

The present invention has been devised in view of the above points, and by adopting an L-axis swivel mechanism for angular rotation of the seat back and forth, the seat can be easily rotated based on the L-axis (longitudinal axis of the vehicle) even in a limited indoor space. It is an object of the present invention to provide a seat rotation device for a vehicle capable of realizing various convenience functions such as face-to-face mode between front and rear passengers, relaxation mode, and sleeping mode.

In order to achieve the above object, the present invention provides: a rail mounted on a vehicle interior floor; a guide bracket provided in a structure in which curved guide holes and straight guide holes are spaced apart from each other at upper and lower positions and mounted on the rail; A first cushion-side frame mounted inside the seat cushion side of the seat; a second cushion-side frame having a structure in which a first link hole facing the curved guide hole and a second link hole facing the straight guide hole are formed in a rear end area and fastened to the first cushion-side frame; a rotating link passing through the first link hole of the second cushion-side frame and inserted into the curved guide hole; a slide link inserted into the linear guide hole through the second link hole of the second cushion-side frame; and a driving device providing forward and backward driving force to the slide link. It provides a seat rotation device for a vehicle, characterized in that configured to include.

In particular, the guide bracket is characterized in that it consists of a vertical support plate on which curved guide holes and straight guide holes are vertically spaced apart, and a horizontal mounting end bent at the lower end of the vertical support plate and fastened to the upper transfer rail of the rail.

Preferably, the curved guide hole is characterized in that a downwardly inclined curved path is formed from the rear of the vehicle to the front.

More preferably, the rear ends of the straight guide hole and the curved guide hole are aligned vertically with each other, and the front end of the straight guide hole extends longer from the front end of the curved guide hole toward the front of the vehicle.

In addition, a mounting hole for fastening with the first cushion-side frame is formed at the front end of the second cushion-side frame, and the first link hole and the second link hole are formed through the upper and lower positions of the rear end, respectively. do.

The driving device according to an embodiment of the present invention includes: a motor; Lead screw mounted on the output shaft of the motor; A transfer block that is inserted into and fastened to the middle of the slide link and is fastened to be screw-transferable with the lead screw at the same time; and a bearing support in which a distal end of the lead screw is rotatably inserted and fastened and fixed on a fixed support plate mounted on the guide bracket. It is characterized in that it is configured to include.

Preferably, the transfer block is characterized in that left and right fasteners through which slide links are inserted left and right and front and rear fasteners through which lead screws are screw-engaged are formed.

On the other hand, a recliner bracket in which a reclining device is installed is disposed between the first cushion-side frame and the second cushion-side frame. It is characterized in that the third link hole is formed to coincide with the first link hole of the cushion-side frame and at the same time through which the rotation link passes.

As a preferred embodiment of the present invention, the seat cushion and seat back of the seat are characterized in that they are adopted in symmetrical shapes to each other.

As a more preferred embodiment, a headrest combined legrest is mounted to the front end of the seat cushion to be folded and unfolded, and a legrest combined headrest is folded and unfolded to the upper end of the seat back. .

Through the above problem solving means, the present invention provides the following effects.

First, by adopting an L-axis swivel mechanism that tilts the seat forward or rearward and rotates it angularly, it is possible to sufficiently secure the rotational trajectory even in a limited indoor space compared to the existing swivel seat that rotates based on the H-axis, and the seat is rotated on the L-axis ( It can be easily rotated based on the vehicle's longitudinal axis).

Second, by angular rotation adjustment of the seat on the basis of the L-axis, it is possible to implement a face-to-face and conversation mode between passengers in the front and rear seat rows, and also to adjust the seat back recline, so that the user can lie down while using the other seat cushion as a leg rest. A relaxation mode and a sleep mode that can be implemented can be implemented.

Third, when the front seat is angularly rotated based on the L-axis, the entire front seat is simultaneously moved a predetermined distance forward, so that interference with the rear seat when the front seat is angularly rotated backward can be easily prevented. can

Fourth, compared to the existing swivel seat that rotates on the H-axis, not only can the number of parts and manufacturing cost be greatly reduced, but also the slimming of the seat applied to autonomous vehicles in the future and the distinction between seat cushion and seat back will be eliminated. In contrast, by adopting the seat cushion and seat back of the seat in a symmetrical shape, it is not necessary to manufacture the seat back and seat cushion separately, so it is possible to further reduce the number of parts and reduce the manufacturing cost.

1 is an exploded perspective view showing each configuration of a car seat rotating device according to the present invention;
2 and 3 is an assembled perspective view showing a rotating device for a car seat according to the present invention;
Figures 4a to 4d is a perspective view separately showing the operating state of the car seat rotation device according to the present invention,
5 to 8 are side views showing examples of operating use of the automotive seat rotating device according to the present invention.

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

Among the terms used in the present invention, the rail, guide bracket, first and second cushion side frames, etc. are arranged at the left and right positions of the seat, so they should be understood as a pair of configurations.

1 to 3 is a perspective view showing a rotating device for a vehicle seat according to the present invention, reference numeral 10 indicates a rail.

The rail 10 is composed of a lower fixed rail 11 fixedly mounted on the interior floor of the vehicle and an upper transfer rail 12 mounted on the lower fixed rail 11 so as to be able to move back and forth.

For reference, the manual or motorized mechanism configurations for linearly transporting the upper transfer rail 12 forward and backward to adjust the front and rear position of the seat are known configurations, and the diagrams and descriptions are omitted regardless of the essence of the present invention. do it with

In particular, the seat 100 to which the rotation device of the present invention is applied is a seat cushion 110 and a seat back 120 in preparation for slimming the seat applied to future autonomous vehicles and the disappearance of the distinction between the seat cushion and the seat back. are adopted in mutually symmetrical shapes.

Moreover, the front end of the seat cushion 110 is equipped with a headrest combined leg rest 112 that can be folded and unfolded, and the upper end of the seat back 120 has a leg rest combined headrest 122 that is folded and unfolded. can be installed

Here, a guide bracket 20 having a curved guide hole 21 and a straight guide hole 22 is fixedly mounted on the upper transfer rail 12 .

The guide bracket 20 has a structure in which a curved guide hole 21 and a straight guide hole 22 are spaced apart from each other up and down, and is mounted on the upper transfer rail 12 to move back and forth together with the upper transfer rail 12. become transportable.

More specifically, the guide bracket 20 is a vertical support plate 23 in which curved guide holes 21 and straight guide holes 22 are vertically spaced apart, and the lower end of the vertical support plate 23 is bent outward. It is divided into a horizontal mounting end 24 fastened on the upper transfer rail 12.

At this time, the curved guide hole 21 is formed as a curved path inclined downward from the rear of the vehicle to the front, like a semi-ellipse outline trajectory.

In particular, as will be described later, the curved guide hole 21 and the straight guide hole of the guide bracket 20 to easily secure the rotational movement trajectory of the second cushion side frame 40 for rotating the seat based on the L axis The rear ends of (22) coincide with each other vertically, and the front end of the straight guide hole 22 extends from the front end of the curved guide hole 21 to a predetermined length toward the front of the vehicle.

Meanwhile, a first cushion-side frame 30 similar to the shape of the side of the seat cushion is mounted inside the side of the seat cushion 110 of the seat 100.

Preferably, in order to reinforce the rigidity of the first cushion-side frame 30, the first cushion-side frame 30 is attached to the seat cushion frame (not shown) originally present inside the seat cushion as a skeleton of the seat cushion 110 ) is installed.

In addition, as will be described later, the first cushion-side frame 30 linearly moves along the linear guide hole 22 of the guide bracket 20 via the rotary link 50 and the slide link 52, The second cushion-side frame 40, which performs angular rotational movement along the curved guide hole 21, is connected.

To this end, the second cushion-side frame 40 has a first link hole 41 facing the curved guide hole 21 of the guide bracket 20 along the left and right directions and a straight line of the guide bracket 20. A second link hole 42 facing the guide hole 22 along the left and right directions is provided in a structure formed through the rear end area.

That is, the second cushion-side frame 40 is formed with mounting holes 43 for fastening with the rear end of the first cushion-side frame 30 at its front end, respectively, at the upper and lower positions of the rear end. The first link hole 41 and the second link hole 42 are provided in a through-formed structure.

On the other hand, as means for linearly moving and rotating the second cushion-side frame 40 for forward or backward rotation of the seat in which the first cushion-side frame 30 is embedded, the rotary link 50 and the slide link 52 ) is provided, and the rotary link 50 and the slide link 52 serve to linearly move and rotate the second cushion-side frame 40 by receiving the power of the driving device 60.

To this end, the rotating link 50 is provided in a bar shape, and both ends thereof pass through the first link hole 41 of the second cushion side frame 40 to form a curved guide hole 21 of the guide bracket 20. Is inserted and fastened to be transportable, and the slide link 52 is provided in the form of a bar having a bent part for connection with the driving device 60, and both ends thereof are provided in the second link hole of the second cushion side frame 40 ( 42) and is inserted into and fastened to the linear guide hole 22 of the guide bracket 20 to be transportable.

The driving device 60 may employ various means such as a motor and gear combination structure, a motor and gas damper combination structure, and a linear motor for providing forward and backward driving force to the slide link 52.

A driving device 60 according to a preferred embodiment of the present invention includes a motor 61 mounted on an indoor floor, a lead screw 62 mounted on an output shaft of the motor 61 and rotating in place, and a guide bracket 20. It is configured to include a bearing support 64 that is fixed on the mounted fixed support plate 63 and rotatably supports the distal end of the lead screw 62 .

In particular, the driving device 60 further includes a transfer block 65 that is inserted into the middle portion of the slide link 52 and fastened with the lead screw 62 so that screw transfer is possible.

At this time, the transfer block 65 has a structure in which the left and right fasteners 66 into which the slide links 52 are inserted and fastened on the left and right sides and the front and rear fasteners 67 through which the lead screw 62 is inserted and penetrated so as to be screwed. are provided

On the other hand, between the first cushion-side frame 30 and the second cushion-side frame 40, a recliner bracket 70 in which a conventional reclining mechanism configuration (not shown) is installed is disposed.

More specifically, the front end of the recliner bracket 70 overlaps and is fixedly mounted to the first cushion-side frame 20, and the rear end has a first link hole 41 of the second cushion-side frame 40 and At the same time, a third link hole 71 through which the rotation link 50 passes is formed, and the rotation point 72 formed in the area between the front and rear ends is connected to the lower end of the seatback 120.

Accordingly, the seat back 120 is angularly rotated around the rotation point 72 of the reclining bracket 70 by the conventional reclining mechanism configurations (not shown) installed in the recliner bracket 70, so that the reclining operation is performed. It can be done.

For reference, the configurations of the reclining mechanism for reclining the seatback are known configurations, and their diagrams and descriptions will be omitted since they are not related to the essence of the present invention.

Here, looking at the operating flow for the sheet rotation device of the present invention made of the above configuration is as follows.

The attached Figures 4a to 4d are separately shown in the operating state of the car seat rotation device according to the present invention, Figure 4a shows a state in which the seat is arranged toward the front of the vehicle.

Referring to FIG. 4A, the first cushion-side frame 20 located in the seat cushion 110 maintains a horizontal arrangement, and is transferred to the second cushion-side frame 30 connected to the first cushion-side frame 20. are arranged horizontally.

At this time, both ends of the rotary link 50 pass through the first link hole 41 of the second cushion-side frame 40 and are located at the rearmost part of the curved guide hole 21 of the guide bracket 20, Both ends of the slide link 52 also pass through the second link hole 42 of the second cushion-side frame 40 and are located at the rear of the straight guide hole 22 of the guide bracket 20.

In this state, in order to tilt and rotate the entire seat 100 including the seat cushion 110 and the seat back 120 backwards relative to the L axis (longitudinal axis of the vehicle), that is, the entire seat is rotated backward, but the seat cushion The motor 61 outputs forward rotational force by an input signal (switch signal) so that the seatback rotates angularly to the seatback position and at the same time rotates angularly to the seat cushion position.

Accordingly, the lead screw 62 mounted on the output shaft of the motor 61 rotates in place, and the lead screw 62 and the feed block 65 screw-engaged move forward toward the front of the vehicle.

At the same time, since the slide link 52 is inserted and fastened through the left and right fasteners 66 of the transfer block 65, the slide link 52 also moves forward together with the transfer block 65, and of course the slide The link 52 moves forward while linearly moving along the linear guide hole 22 of the guide bracket 20 .

At this time, since the slide link 52 is inserted through the second link hole 42 of the second cushion-side frame 40, that is, the second cushion-side frame 50 is moved by the slide link 52. Since it is in a restrained state, when the slide link 52 moves forward, the second cushion-side frame 40 also moves forward together.

At the same time, since both ends of the rotary link 50 pass through the first link hole 41 of the second cushion-side frame 40 and are inserted into the curved guide hole 21 of the guide bracket 20, the When the second cushion-side frame 40 moves forward, the rotary link 50 also moves forward along the curved guide hole 21 .

At this time, since the curved guide hole 21 of the guide bracket 20 is formed in a downwardly inclined curved path from the rear of the vehicle to the front, like the outline trajectory of a semi-ellipse, as shown in FIGS. 4B and 4C, The rotary link 50 is gradually moved forward while drawing a downward trajectory toward the front, so that the rotary link 50 serves to pull the upper part of the rear end of the second cushion-side frame 40 downward, so that the second cushion The side frame 40 gradually rotates vertically around the slide link 52.

Moreover, since the front end of the straight guide hole 22 into which the slide link 52 is inserted extends a predetermined length from the front end of the curved guide hole 21 toward the front of the vehicle, as shown in FIG. While the slide link 52 advances further compared to the rotary link 50, it serves to push the rear lower part of the second cushion-side frame 40 upward, so that the second cushion-side frame 40 is vertically to be in a state of being built.

In addition, while the second cushion-side frame 40 is gradually erected vertically, the first cushion-side frame 30 connected to the second cushion-side frame 40 is also lifted and gradually erected vertically. The recliner bracket 70 connected between the side frame 30 and the second cushion side frame 40 is also erected in a vertical position in a horizontal state.

At the same time, since the first cushion-side frame 30 is installed inside the seat cushion 110, when the first cushion-side frame 30 gradually rotates in the vertical direction, the seat cushion 110 is not erected like a seat back. , and since the recliner bracket 70 is connected to the seatback 120, the seatback 120 is laid down like a seat cushion when the recliner bracket 70 rotates in the vertical direction angularly makes an angular rotation with

Therefore, the seat 100 is arranged toward the rear of the vehicle, the seat cushion 110 serves as a seat back, and the seat back 120 serves as a seat cushion.

Again, since the operation of rotating the seat 100 toward the front of the vehicle is the reverse order of the above operation process, its detailed description will be omitted.

In this way, by adopting an L-axis swivel mechanism that tilts the seat forward or rearward around the L-axis and rotates it angularly, it is possible to sufficiently secure the rotational trajectory even in a limited indoor space compared to the conventional swivel seat that rotates based on the H-axis. , The seat can be easily rotated based on the L axis (longitudinal axis of the vehicle).

In addition, when the L-axis rotation of the seat is operated, the first and second cushion side frames 30 and 40 are rotated through the rotation link 50 and the slide link 52, and the curved and straight guide holes 21 and 22 of the guide bracket Since the sliding advancement of the entire sheet is performed simultaneously based on the motion of advancing along ), it is possible to easily prevent interference with the sheet disposed in the rear row as shown in FIG. 5 attached.

6 to 8 are side views showing examples of operating use of the vehicle seat rotating device according to the present invention.

As described above, the recliner bracket 70 is connected between the first cushion-side frame 30 and the second cushion-side frame 40, and is formed in an area between the front and rear ends of the recliner bracket 70. The rotation point 72 is connected to the lower end of the seatback 120, and a general reclining mechanism configuration (not shown) for adjusting the inclination angle of the seatback is assembled to the recliner bracket 70.

Referring to FIGS. 6 and 7 , a user's relaxation mode and sleeping mode may be implemented by operating a reclining mechanism to lay the seatback 120 down.

In addition, as shown in FIG. 7 , a legrest mode in which a passenger seated on a seat in the rear row raises his/her legs on a seatback that has been changed to a position of a seat cushion can also be implemented.

Referring to FIG. 8 , it is also possible to implement a walk-in mode in which a passenger can easily board a third row seat through a gap between the second row seat and the third row seat.

That is, the upper transfer rail 12 on which the guide bracket 20 is mounted is moved forward along the lower fixed rail 11 by known manual or motorized mechanism configurations, and at the same time, the seatback is moved using a reclining device. By performing the forward bending operation, passengers can conveniently get on and off the third-row seat.

10 : rail
11: lower fixed rail
12: upper transfer rail
20: guide bracket
21: curved guide hole
22: straight guide hole
23: vertical support plate
24: horizontal mounting end
30: first cushion side frame
40: second cushion side frame
41: first link hole
42: second link hole
43: mounting hole
50: rotation link
52: slide link
60: driving device
61: motor
62: lead screw
63: fixed support plate
64: bearing support
65: transfer block
66: left and right fasteners
67: front and rear fasteners
70: recliner bracket
71: 3rd link hole
72: rotation point
100: sheet
110: seat cushion
112: Legrest
120: seat back
122: headrest

Claims (10)

A rail mounted on a vehicle interior floor;
a guide bracket provided in a structure in which curved guide holes and straight guide holes are spaced apart from each other at upper and lower positions and mounted on the rail;
A first cushion-side frame mounted inside the seat cushion side of the seat;
a second cushion-side frame having a structure in which a first link hole facing the curved guide hole and a second link hole facing the straight guide hole are formed in a rear end region and fastened to the first cushion-side frame;
a rotating link passing through the first link hole of the second cushion-side frame and inserted into the curved guide hole;
a slide link inserted into the linear guide hole through the second link hole of the second cushion-side frame; and
a driving device providing forward and backward driving force to the slide link;
Seat rotation device for a vehicle, characterized in that configured to include a.
The method of claim 1,
The guide bracket is a vehicle seat, characterized in that composed of a vertical support plate formed with curved guide holes and straight guide holes spaced apart vertically, and a horizontal mounting end bent at the lower end of the vertical support plate and fastened to the upper transfer rail of the rail. rotation device.
The method of claim 2,
The curved guide hole is a vehicle seat rotating device, characterized in that the downwardly inclined curved path is formed from the rear of the vehicle to the front.
The method of claim 2,
The rear end of the straight guide hole and the curved guide hole are aligned vertically with each other, and the front end of the straight guide hole extends longer from the front end of the curved guide hole toward the front of the vehicle.
The method of claim 1,
A mounting hole for fastening with the rear end of the first cushion-side frame is formed at the front end of the second cushion-side frame, and the first link hole and the second link hole are formed through the upper and lower positions of the rear end, respectively. A seat rotation device for automobiles.
The method of claim 1,
The driving device is:
motor;
Lead screw mounted on the output shaft of the motor;
A transfer block that is inserted into and fastened to the middle of the slide link and is fastened to be screw-transferable with the lead screw at the same time; and
a bearing support in which a distal end of the lead screw is rotatably inserted and fastened and fixed on a fixed support plate mounted on a guide bracket;
Seat rotation device for a vehicle, characterized in that configured to include a.
The method of claim 6,
The conveying block is provided with a structure in which left and right fasteners through which slide links are inserted left and right and front and rear fasteners through which lead screws are screwed through are formed.
The method of claim 1,
A recliner bracket in which a reclining device is installed is disposed between the first cushion-side frame and the second cushion-side frame. A seat rotation device for a vehicle, characterized in that a third link hole through which the rotation link passes through coincident with the first link hole of the frame.
The method of claim 1,
A seat rotation device for a vehicle, characterized in that the seat cushion and seat back of the seat are adopted in a symmetrical shape to each other.
The method of claim 9,
A seat rotation device for a vehicle, characterized in that a headrest combined legrest is mounted to the front end of the seat cushion to be folded and unfolded, and a legrest combined headrest is folded and unfolded to the upper end of the seat back.

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