KR20200018971A - Device for swiveling seat of vehicle - Google Patents

Abstract

The present invention relates to a vehicle seat rotating device that can implement various convenience functions by adopting an L-axis swivel mechanism that rotates the seat forward and backward. That is, the present invention adopts that L-axis swivel mechanism that rotates the seat including a seatback and a seat cushion back and forth at an angle to easily rotate the seat based on the L-axis (the longitudinal axis of the vehicle) in a limited indoor space and to implement various convenience functions such as a facing mode, a relaxation mode, and a sleeping mode between passengers in front and rear rows.

Description

Seat revolving device for automobiles {Device for swiveling seat of vehicle}

The present invention relates to an automobile seat rotating apparatus, and more particularly, to an automobile seat rotating apparatus capable of implementing various convenience functions by adopting an L-axis swivel mechanism for rotating the seat back and forth.

Autonomous vehicles that can be driven without the driver's control can be equipped with a swivel type (rotary) seat that can rotate the seat's angle in the desired direction for multi-party meetings, conversations, outside views, and sleeping. have.

In general, the conventional seat swivel mechanism is adopted in a configuration in which the seat seated in the second row or the third row rotates the seat about the H axis (up and down height axis of the vehicle) in order to face the passenger seated in the rear row. The swivel mechanism based on the H axis is very complicated because it requires the interlocking of many parts, and has a disadvantage in that weight and cost increase are required.

In particular, since the interior space of the vehicle is limited, it is difficult to secure the rotation trajectory when the seat is rotated based on the H axis (up and down height axis of the vehicle).

The present invention has been devised in view of the above, and adopts an L-axis swivel mechanism for rotating the seat back and forth, so that the seat can be easily rotated on the basis of the L axis (vehicle longitudinal axis) even in a limited indoor space. In addition, an object of the present invention is to provide a seat revolving device for a vehicle capable of implementing various convenience functions such as a front-to-back row passenger facing mode, a relaxation mode, and a sleep mode.

The present invention to achieve the above object is a rail mounted on the vehicle interior floor; A guide bracket having a curved guide hole and a straight guide hole spaced apart in a vertical position, the guide bracket being 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 first link hole coinciding with the curved guide hole and a second link hole coinciding with the straight guide hole in a rear end region, and fastened to the first cushion side frame; A rotary link inserted into the curved guide hole through the first link hole of the second cushion side frame; A slide link in which a straight guide hole is inserted through a 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 car seat rotation apparatus characterized in that it comprises a.

In particular, the guide bracket is characterized by consisting of a vertical support plate is formed with a curved guide hole and a straight guide hole spaced up and down, 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 the curved path formed inclined downward toward the front from the rear of the vehicle.

More preferably, the rear end of the straight guide hole and the curved guide hole is vertically matched with each other, the front end of the straight guide hole is characterized in that it is formed to extend longer in front of the vehicle from the front end of the curved guide hole.

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 respectively penetrated at upper and lower positions of the rear end portion. do.

The drive device according to an embodiment of the present invention includes: a motor; A lead screw mounted to an output shaft of the motor; A transfer block inserted into and fastened to the middle portion of the slide link and screwed to the lead screw; And a bearing support inserted into the distal end of the lead screw so as to be rotatably supported, and fixed on a fixed support plate mounted to the guide bracket. Characterized in that configured to include.

Preferably, the transfer block is characterized in that the left and right fasteners through which the slide link is inserted into the left and right, and the front and rear fasteners through which the lead screw is inserted to be screwed.

Meanwhile, a recliner bracket is installed between the first cushion side frame and the second cushion side frame, and a recliner bracket is installed. The front end portion of the recliner bracket is fixedly overlapped with the first cushion side frame, and the second end portion is fixed to the second cushion side frame. And a third link hole coinciding with the first link hole of the cushion side frame and through which the rotating link penetrates.

As a preferred embodiment of the present invention, the seat cushion and the seat back of the seat are characterized in that it is adopted in a symmetrical shape with each other.

In a more preferred embodiment, the front end of the seat cushion is equipped with a leg rest for both foldable and unfoldable, the upper end of the seat back is characterized in that the leg rest combined with the headrest can be folded and unfoldable .

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

First, by adopting the L-axis swivel mechanism to angularly rotate the seat by turning it forward or backward, it is possible to sufficiently secure the rotation trajectory even in a limited indoor space compared to the conventional swivel seat that rotates based on the H-axis. Can be easily rotated relative to the longitudinal axis of the vehicle).

Second, the seats can be rotated on the L-axis, allowing the front seat row and the rear seat row to face each other and communicate with each other.The seat back reclining adjustment and the other seat cushion can be used as a leg rest. Relax mode and sleep mode can be implemented.

Third, when the front seat is angularly rotated with respect to the L-axis, the entire front seat is moved forwards a predetermined distance at the same time, so that the interference of the rear seat can be easily prevented when the front seat is angularly rotated backward. Can be.

Fourth, compared to the existing swivel seat rotated on the H-axis, the number of parts and manufacturing cost can be greatly reduced, and the slimming of seats applied to future autonomous vehicles and the distinction between seat cushions and seatbacks can be eliminated. In contrast, by adopting the seat cushion and the seat back of the seat in a symmetrical shape, it is not necessary to separately manufacture the seat back and the seat cushion, thereby further reducing the number of parts and reducing the manufacturing cost.

1 is an exploded perspective view showing each configuration of a seat rotating apparatus for an automobile according to the present invention;
2 and 3 are assembled perspective views showing a seat rotating apparatus for a vehicle according to the present invention,
4a to 4d is a perspective view showing the operating state of the automobile seat rotating apparatus according to the present invention,
5 to 8 are side views showing an operation example of the seat revolving device for a vehicle 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, the guide bracket, the first and second cushion side frames, and the like are arranged at the left and right positions of the seat, and thus should be understood as a pair of configurations.

1 to 3 are perspective views showing a seat rotating apparatus for a vehicle according to the present invention, wherein reference numeral 10 designates a rail.

The rail 10 includes a lower fixed rail 11 fixedly mounted on an indoor floor of a vehicle, and an upper transfer rail 12 mounted on the lower fixed rail 11 so as to be transported forward and backward.

For reference, manual or electric mechanism configurations for linearly conveying the upper conveying rail 12 back and forth for adjusting the front and rear positions of the seat are known configurations, and the schematic and description thereof are omitted, regardless of the nature of the present invention. Shall be.

In particular, the seat 100 to which the rotary device of the present invention is applied is prepared in order to eliminate the slimming of the seat applied to a future autonomous vehicle and the distinction between the seat cushion and the seatback, and the seat cushion 110 and the seatback 120. It is adopted in a symmetrical shape with each other.

In addition, the front end of the seat cushion 110 is mounted to the legrest 112 for folding and unfolding, and the headrest 122 for the leg rest for both folding and unfolding on the upper end of the seat back 120 Possibly mounted.

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 is provided with a structure in which the curved guide hole 21 and the straight guide hole 22 are spaced apart in an up and down position. The guide bracket 20 is mounted on the upper transfer rail 12 and moves forward and backward together with the upper transfer rail 12. The transfer is possible.

More specifically, the guide bracket 20 is a vertical support plate 23 formed with a curved guide hole 21 and a straight guide hole 22 spaced up and down, and bent outward at the lower end of the vertical support plate 23. And is divided into horizontal mounting ends 24 fastened on the upper conveying rail 12.

In this case, the curved guide hole 21 is formed as a curved path inclined downward from the rear of the vehicle to the front, such as the outer line trajectory of the semi-ellipse.

In particular, the curved guide hole 21 and the linear guide hole of the guide bracket 20 in order to easily secure the rotational movement trajectory of the second cushion side frame 40 for rotating the seat on the L axis basis as will be described later. The rear ends of the 22 are coincident with each other up and down, and the front end of the straight guide hole 22 extends longer by a predetermined length toward the front of the vehicle from the front end of the curved guide hole 21.

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

Preferably, the first cushion side frame 30 is disposed on a seat cushion frame (not shown) which is originally present inside the seat cushion as a skeleton of the seat cushion 110 for rigidity reinforcement of the first cushion side frame 30. ) To be mounted.

In addition, the first cushion-side frame 30 is linearly moved along the straight guide hole 22 of the guide bracket 20 via the rotating link 50 and the slide link 52 as described later. The second cushion side frame 40 which performs angular rotation along the curved guide hole 21 is connected.

To this end, the second cushion side frame 40 is the first link hole 41 and the linear guide hole 22 of the guide bracket 20 that coincides with the curved guide hole 21 of the guide bracket 20. The second link hole 42 is formed to have a structure formed through the rear end region thereof.

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

On the other hand, as a 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, the rotary link 50 and the slide link 52 serves to linearly move and rotate the second cushion side frame 40 by receiving power from the driving device 60.

To this end, the rotary link 50 is provided in the form of a bar, both ends of which pass through the first link hole 41 of the second cushion side frame 40, the curved guide hole 21 of the guide bracket 20 The slide link 52 is inserted into and fastened to the driving unit 60, and the slide link 52 is provided in the form of a bar having a bent portion for connection with the driving device 60, and both ends thereof have a second link hole of the second cushion side frame 40. 42, the straight guide hole 22 of the guide bracket 20 is inserted and fastened to be transportable.

The drive 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 that provide forward and backward driving force to the slide link 52.

The drive device 60 according to the 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 and the like fixed on the fixed support plate 63 is mounted to rotatably support the distal end of the lead screw 62.

In particular, the drive device 60 further includes a transfer block 65 which is inserted into and fastened to the middle portion of the slide link 52 and screwed to the lead screw 62 so as to be screwed.

At this time, the transfer block 65 has a structure in which the left and right fasteners 66 into which the slide link 52 is inserted and fastened to the left and right, and the front and rear fasteners 67 through which the lead screws 62 are inserted to be screwed together. It is provided.

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

More specifically, the front end portion of the recliner bracket 70 is fixedly overlapped with the first cushion side frame 20, and the rear end portion of the recliner bracket 70 is fixed to the first link hole 41 of the second cushion side frame 40. At the same time, a third link hole 71 through which the rotary link 50 penetrates is formed, and the rotation point 72 formed in the region between the front end and the rear end is connected to the lower end of the seatback 120.

Accordingly, the seatback 120 rotates about the rotation point 72 of the reclining bracket 70 by the normal reclining mechanism components (not shown) installed in the recliner bracket 70 so that the reclining operation is performed. Can be done.

For reference, the reclining mechanism configurations for reclining the seatback are known configurations, and the schematic and description thereof will be omitted, regardless of the nature of the present invention.

Here, look at the operation flow for the seat rotating device of the present invention made of the above configuration.

4A to 4D are diagrams illustrating the operating states of the seat rotating apparatus for automobiles according to the present invention, and FIG. 4A shows a state in which the seats are arranged toward the front of the vehicle.

Referring to FIG. 4A, the first cushion side frame 20 positioned in the seat cushion 110 maintains a horizontal arrangement and is connected to the second cushion side frame 30 connected to the first cushion side frame 20. The state is arranged horizontally.

At this time, both ends of the rotary link 50 passes through the first link hole 41 of the second cushion side frame 40 and is located at the rear 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 positioned at the rear end of the straight guide hole 22 of the guide bracket 20.

In this state, the entire seat 100 including the seat cushion 110 and the seat back 120 is rotated while being rolled back with respect to the L axis (the longitudinal axis of the vehicle), that is, the entire seat is rotated backward and the seat cushion The motor 61 outputs a forward rotational force by an input signal (switch signal) such that the seatback rotates to the seatback position and the seatback rotates to the seat cushion position.

Accordingly, the lead screw 62 mounted on the output shaft of the motor 61 is rotated in place, and the feed screw 65 screwed with the lead screw 62 is advanced 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 with the transfer block 65, and of course, the slide. The link 52 moves forward along a straight guide hole 22 of the guide bracket 20 in a linear motion.

In this case, 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 the constrained state, the second cushion side frame 40 also moves forward when the slide link 52 moves forward.

At the same time, since both ends of the rotary link 50 are inserted into the curved guide hole 21 of the guide bracket 20 through the first link hole 41 of the second cushion side frame 40, 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 as a curved path inclined downward toward the front from the rear of the vehicle like the outer line trajectory of the semi-ellipse, as shown in FIGS. 4B and 4C, The rotary link 50 gradually moves forward while drawing a downward trajectory along the front, so that the rotary link 50 pulls the upper portion of the rear end of the second cushion side frame 40 downward, thereby providing a second cushion. The side frame 40 gradually makes an angular rotation perpendicular to the slide link 52.

Furthermore, the front end portion of the linear guide hole 22 into which the slide link 52 is inserted is extended longer by a predetermined length from the front end of the curved guide hole 21 toward the front of the vehicle, as shown in FIG. 4D. As the slide link 52 moves further forward than the rotary link 50, the slide link 52 pushes the lower end of the second cushion side frame 40 upward, so that the second cushion side frame 40 moves vertically. It is in a state of being built.

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

At the same time, since the first cushion-side frame 30 is built in the seat cushion 110, the seat cushion 110 is also erected like the seat back when the first cushion-side frame 30 gradually rotates in the vertical direction. Since the recliner bracket 70 is connected to the seat back 120, the seat back 120 is laid down like the seat cushion when the recliner bracket 70 is rotated in the vertical direction. Each turn will be performed.

Therefore, the seat 100 is in a state arranged toward the rear of the vehicle, the seat cushion 110 serves as a seat back, 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 of the above operation process, a detailed description thereof will be omitted.

Thus, by adopting the L-axis swivel mechanism to angularly rotate the seat to the front or rear toward the center of the L-axis, it is possible to sufficiently secure the rotation trajectory even in a limited indoor space compared to the conventional swivel seat that rotates relative to the H-axis The sheet can be easily rotated on the basis of the L axis (vehicle longitudinal axis).

In addition, during the L-axis rotation operation of the seat, the first and second cushion side frames 30 and 40 allow the curved and straight guide holes 21 and 22 of the guide bracket to pass through the rotary link 50 and the slide link 52. Based on the forward movement according to the) the sliding forward of the entire sheet is made at the same time, as shown in the accompanying Figure 5 can easily prevent the phenomenon of interference with the sheet disposed in the rear row.

6 to 8 are side views illustrating an operation use example of the seat rotating apparatus for a vehicle 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 end portion and the rear end portion of the recliner bracket 70. Rotation point 72 is connected to the lower end of seatback 120, and a conventional reclining mechanism configuration (not shown) for adjusting the inclination angle of seatback is assembled to recliner bracket 70.

6 and 7, the user may operate the reclining mechanism to lay down the seatback 120 so that the user's relax mode and the sleep mode may be implemented.

In addition, as shown in FIG. 7, a leg rest mode in which a passenger seated on a rear row seat raises a leg over a seat back that is changed to a seat cushion position may be implemented.

Referring to FIG. 8, it is also possible to implement a walk-in mode in which passengers can easily board the third row of seats between the second row and the third row seats.

That is, the upper conveying rail 12 on which the guide bracket 20 is mounted is moved forward along the lower fixing rail 11 by known manual or electric mechanism configurations, and at the same time, the seat back is moved by using the reclining device. By enabling the forward bowing operation, the passenger can get on and off the three rows of seats conveniently.

10: rail
11: lower fixed rail
12: Upper feed rail
20: guide bracket
21: curved guide hole
22: straight guide hole
23: vertical support plate
24: horizontal mounting end
30: 1st cushion side frame
40: second cushion side frame
41: first link hole
42: second link hole
43: mounting hole
50: rotating link
52: slide link
60 drive device
61: motor
62: lead screw
63: fixed support plate
64: bearing support
65: transfer block
66: left and right fastener
67: front and rear fastener
70: recliner bracket
71: third link hole
72: rotation point
100: sheet
110: seat cushion
112: Legrest
120: seatback
122: headrest

Claims (10)

A rail mounted to the vehicle indoor floor;
A guide bracket having a curved guide hole and a straight guide hole spaced apart in a vertical position, the guide bracket being 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 first link hole coinciding with the curved guide hole and a second link hole coinciding with the straight guide hole in a rear end region, and fastened to the first cushion side frame;
A rotary link inserted into the curved guide hole through the first link hole of the second cushion side frame;
A slide link having a straight guide hole inserted through the second link hole of the second cushion side frame; And
A driving device for providing forward and backward driving force to the slide link;
Car seat rotation apparatus characterized in that comprises a.
The method according to claim 1,
The guide bracket includes a vertical support plate having a curved guide hole and a straight guide hole spaced up and down, and a horizontal mounting end that is bent at a lower end of the vertical support plate and fastened to the upper transfer rail of the rail. Rotator.
The method according to claim 2,
The curved guide hole is a vehicle seat rotation apparatus characterized in that the curved path is formed inclined downward toward the front from the rear of the vehicle.
The method according to claim 2,
The rear end of the straight guide hole and the curved guide hole is vertically matched with each other, the front end of the straight guide hole is a vehicle seat rotating apparatus characterized in that it is formed to extend longer in front of the vehicle from the front end of the curved guide hole.
The method according to claim 1,
Mounting holes for fastening with the rear end of the first cushion-side frame is formed at the front end of the second cushion-side frame, the first link hole and the second link hole are formed through the upper and lower positions of the rear end, respectively. An automobile seat rotating device.
The method according to claim 1,
The drive unit is:
motor;
A lead screw mounted to an output shaft of the motor;
A conveying block inserted into and fastened to the middle portion of the slide link and screwed to the lead screw; And
A bearing support fixedly mounted on a fixed support plate mounted to the end of the lead screw so as to be rotatably supported by the guide bracket;
Car seat rotation apparatus characterized in that comprises a.
The method according to claim 6,
The conveying block is a vehicle seat rotation apparatus characterized in that the left and right fasteners through which the slide link is inserted from side to side and the lead screw is provided with a structure formed before and after fastening through which the screw can be screwed through.
The method according to claim 1,
A recliner bracket is installed between the first cushion side frame and the second cushion side frame, and a recliner bracket on which a reclining device is installed is disposed. And a third link hole coinciding with the first link hole of the frame and through which the rotating link passes.
The method according to claim 1,
The seat cushion and the seat back of the seat is a vehicle seat rotating apparatus, characterized in that adopted in a symmetrical shape with each other.
The method according to claim 9,
The front seat portion of the seat cushion seatrest leg combines to be folded and unfolded is mounted, the upper end of the seat back seat restraint device for automobiles, characterized in that the headrest combines to be folded and unfolded.

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