JPH09156404A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat for vehicle capable of being rotated to the outside in the vehicle width direction, being slide-adjusted, and being easily formed separately from the general seat. SOLUTION: This seat 21 is provided with a cushion section 23 constituted of a frame 27 and a pad 29 and a backrest section 25, and both the right and left sides of the frame 27 of the cushion section 23 are supported by the right and left sliding devices 39, 41 slidably in the longitudinal direction. Driving means independently slide-driving the sliding devices 39, 41 are provided on the right and left sliding devices 39, 41. The frame 27 of the cushion section Z3 is rotatably fitted to one sliding device 39 via a rotary shaft, and it is connected to at least the other sliding device 41 by a rotation guide mechanism allowing the movement in the vehicle width direction by the rotation centering on the rotary shaft while being coupled in the longitudinal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat such as an automobile.

[0002]

2. Description of the Related Art As a conventional vehicle seat, for example, FIG.
8, there is one as shown in FIG. 19 (Shokai 62-92).
(See Japanese Patent No. 937).

The vehicle seat 1 is rotatably supported toward the entrance / exit 5 of the automobile 3 to improve the entry / exitability of the vehicle. That is, the vehicle seat 1 is a front seat, and includes a cushion portion 7 and a backrest portion 9. The frame 11 of the cushion portion 7 has a rear portion in the vehicle width direction outside through a pin 13 and a side sill 15
It is rotatably supported on the side. Further, moving wheels 17 are provided in front of and behind the frame 11 in the vehicle width direction. Then, when the door of the automobile 3 is opened, the vehicle seat 1 is rotated outward in the vehicle width direction about the pin 13 by driving an actuator under the control of a controller (not shown) to improve the occupant's entry / exitability. It is possible.

[0004]

However, in the above structure, the frame 11 of the cushion portion 7 is directly supported on the side sill 15 side, so that the seat slide device cannot be mounted and the vehicle body side is not mounted. There is a problem that it is difficult to make a separate seat from a general seat because the method of attaching it to the seat differs greatly from that of a normal seat.

Therefore, an object of the present invention is to provide a vehicle seat to which a seat slide device is attached and which can be easily manufactured separately from a general seat.

[0006]

In order to solve the above-mentioned problems, the invention of claim 1 is provided with a cushion portion and a backrest portion which are composed of a frame and a pad, and left and right slide devices on both left and right sides of the frame of the cushion portion. In a vehicle seat supported slidably in the front-rear direction, a drive means is provided for each of the left and right slide devices and independently drives the slide device, and the frame of the cushion portion is provided for the one slide device. Is rotatably attached to the other slide device, and is coupled to at least the other slide device by a rotation guide mechanism that allows movement in the vehicle width direction by rotation of the center of the rotation shaft while engaging in the front-rear direction.

When the slide device on the inner side in the vehicle width direction is driven relative to the slide device on the outer side in the vehicle width direction, the frame of the cushion portion receives the engaging force in the front-rear direction from the slide device via the rotation guide mechanism. . Therefore,
The frame of the cushion portion rotates around the rotation axis so as to face outward in the vehicle width direction. At this time, the frame of the cushion portion is allowed to move in the vehicle width direction with respect to the slide device via the rotation guide mechanism. Therefore, it is possible to rotate the entire cushion portion and the backrest portion and direct them outward in the vehicle width direction.

The invention according to claim 2 is the vehicle seat according to claim 1, wherein the rotation guide mechanism is a curved guide rail attached to one of the slide device and the frame of the cushion portion. It is characterized by comprising a guide pin engaged with the guide rail and attached to the other.

When the slide device on the inner and outer sides in the vehicle width direction is driven relatively, the engaging force can be applied between the slide device and the frame of the cushion portion by the curved guide rail and the guide pin. . by this,
The frame of the cushion portion can rotate about the rotation axis with respect to the slide device, and the guide pin and the curved guide rail can relatively move in the vehicle width direction.

According to a third aspect of the present invention, there is provided the vehicle seat according to the first or second aspect, wherein a support means capable of changing a seat surface angle of the cushion portion is provided, and when the cushion portion performs the rotation. It is characterized in that the seat surface angle of the cushion portion is reduced.

When the cushion portion rotates outward in the vehicle width direction, the seat surface angle of the cushion portion can be reduced by the support means.

The invention according to claim 4 is the vehicle seat according to claim 3, wherein the supporting means is a seat lifter mechanism for raising a rear end of the cushion portion or lowering a front end thereof. .

When the cushion portion rotates so as to face outward in the vehicle width direction, the seat lifter mechanism raises the rear end of the cushion portion or lowers the front end thereof to reduce the seat surface angle of the cushion portion. it can.

According to a fifth aspect of the present invention, in the vehicle seat according to the fourth aspect, the seat lifter mechanism causes the rear end of the cushion portion to rise or the front end to fall less inside the vehicle width direction than outside the same. It is characterized by doing.

When the cushion portion rotates so as to face outward in the vehicle width direction, the seat lifter mechanism raises the rear end or lowers the front end of the cushion portion so that the inner side in the vehicle width direction is smaller than the outer side. be able to. Therefore,
It is possible to suppress the inclination of the cushion portion in the vehicle width direction.

The invention according to claim 6 is the vehicle seat according to claim 3, wherein the supporting means is constituted by inclining the guide rail in the vehicle width direction.

When the cushion portion rotates in the vehicle width direction, the seat surface angle of the cushion portion can be reduced by the inclination of the guide rail.

The invention of claim 7 is the vehicle seat according to any one of claims 1 to 5, wherein the cushion portion and the backrest portion are rear seats, and the backrest portion is the A hinge is connected to the cushion portion, and the backrest portion is supported on the backboard on the vehicle body side through upper, lower, left, and right guides that raise the backrest portion when the cushion portion rotates. .

Then, when the cushion portion of the rear seat rotates so as to face outward in the vehicle width direction, the backrest portion can be raised to the cushion portion via the upper, lower, left and right guides.

The invention according to claim 8 is the vehicle seat according to any one of claims 1 to 7, wherein a releasable lock mechanism for fixing the frame of the cushion portion to the slide device is provided. Is characterized by.

When the cushion portion is not rotated so as to be directed outward in the vehicle width direction, the frame of the cushion portion can be fixed to the slide device by the lock mechanism, and the cushion portion can be reliably positioned with respect to the slide device. it can.

The invention of claim 9 is the vehicle seat according to any one of claims 1 to 7, wherein a slide switch operated by an occupant is provided, and a door switch for detecting opening / closing of a vehicle door is provided, and The left and right slide devices are synchronously driven to slide by a signal from a slide switch, and a door opening signal from the door switch relatively drives a slide device inside the vehicle width direction and a slide device outside the same. A control means for controlling the drive means is provided.

When the occupant operates the slide switch, the left and right slide devices are synchronously driven to slide by the control of the drive means by the control means, and seat slide adjustment can be performed. Further, when a door open signal is input from the door switch, the sliding device on the inner side in the vehicle width direction and the sliding device on the same outer side in the vehicle width direction are driven relatively by the control of the driving means by the control means, and the cushion portion moves in the vehicle width direction It can be automatically driven to face outward.

[0024]

Embodiments of the present invention will be described below.

(First Embodiment) FIG. 1 shows a first embodiment of the present invention.
1 is a perspective view showing a vehicle seat according to an embodiment.
The vehicle seat 21 is a front seat of an automobile and includes a cushion portion 23 and a backrest portion 25. The cushion portion 23 supports the buttocks of a seated occupant, and includes a cushion frame 27 as a frame and a cushion pad 29 as a pad. The backrest portion 25 includes a backrest frame 31 as a frame and a backrest pad 33 as a pad. The backrest frame 31 is rotatably supported by the cushion frame 27 via a reclining device 35, and is capable of reclining. A headrest 37, which is also made up of a frame and a pad, is attached to the upper portion of the backrest portion 25.

The cushion frame 27 is supported on the left and right sides in the vehicle width direction by left and right slide devices 39 and 41 so as to be slidable in the vehicle front-rear direction. FIG. 2 is an enlarged perspective view showing details of support of the cushion frame 27 with respect to the slide devices 39 and 41. As shown in FIG. 2, the cushion frame 27 has a rectangular frame shape, and two support portions 27a, 27b are provided at the left and right central portions.
And a controller 43 as a control means is attached to the front portions of the support portions 27a and 27b.

The slide devices 39 and 41 are composed of a lower rail 45 and an upper rail 47.
47 is slidable forward and backward. The lower rail 45 includes front and rear brackets 49, 51.
Are supported on the vehicle body side and are supported so that the front side is slightly higher. The left and right slide devices 39, 41 are provided with lead screw mechanisms 53, 55 as drive means for independently sliding the slide devices 39, 41. The lead screw mechanisms 53 and 55 are provided with a lead screw 57, a nut 59, a gear box 61 incorporating a position sensor, and a motor 63. One end of the lead screw 57 is rotatably supported by a bearing 65 attached to the lower rail 45,
The other end side is interlockingly connected to a gear box 61 which is also attached to the lower rail 45. The motor 63 is linked to the gear box 61 and is controlled by the controller 43. The nut 59 is screwed onto the lead screw 57 and attached to the upper rail 47.

The cushion frame 27 is rotatably attached to one of the left and right slide devices 39 and 41 on the outer side in the vehicle width direction by one rotation shaft. That is, the rotating pin 67 as one rotating shaft is provided at the outer rear portion of the cushion frame 27 in the vehicle width direction. The details around the rotary pin 67 will be described later. The cushion frame 27 is connected to the slide device 41 on the inner side in the vehicle width direction by rotation guide mechanisms 69 and 71. Further, in this embodiment, the cushion frame 2 is attached to the slide device 39 on the outer side in the vehicle width direction.
The front side of 7 is connected by a rotation guide mechanism 73. Therefore, the rotation guide mechanisms 69 and 71 allow the cushion frame 27 to move in the vehicle width direction by rotating the center of the rotation pin 67 while engaging with the slide device 41 in the front-rear direction. That is, the rotation guide mechanisms 69 and 71 have curved guide rails 75 and 77 fixed to the upper rail 47. or,
Guide pins 79, 81 are attached to the cushion frame 27, and guide rails 75, 77 are provided via sliders 83, 85 provided at the lower ends of the guide pins 79, 81.
Is slidably engaged with. The rotation guide mechanism 7
3 also has substantially the same configuration. However, the curved guide rail 87 is fixed to the cushion frame 27 side, and a guide pin (not shown) is fixed to the upper rail 47 side. Then, the guide rails 75, 7 on the inner side in the vehicle width direction
7 is an upper rail 47 of the slide device 41 when the cushion frame 27 rotates so as to face outward in the vehicle width direction.
The guide rail 87 of the rotation guide mechanism 73 is protruded inward in the vehicle width direction so as not to protrude from the cushion frame 27. Further, in this embodiment, a releasable lock mechanism 89 for fixing the cushion frame 27 to the slide device 39 is provided. Details of the lock mechanism 89 and the like will be described later.

Details of the periphery of the rotary pin 67 are as shown in an enlarged side view of FIG. That is, the rotating pin 67
Is provided on the lower surface side of the cushion frame 27, and its tip 67a is spherical. Also, the slide device 39
A spherical bearing 91 is provided on the upper rail 47 to support the tip 67a of the guide pin 67. Therefore, the tip 67a of the rotary pin 67 and the spherical bearing 91 form a ball joint. In this way, the cushion frame 27 can be rotated outward with respect to the upper rail 47 of the slide device 39 about the rotation pin 67 by the rotation of the rotation pin 67 relative to the spherical bearing 91, and can be directed outward in the vehicle width direction.

Details of the lock mechanism 89 and the like are shown in FIGS.
It is like. FIG. 4 is a plan view and FIG. 5 is a vertical sectional view. As shown in FIGS. 4 and 5, the lock mechanism 8
9 includes a solenoid 93 and a lock lever 95. The solenoid 93 is fixed to the outside of a lock support bracket 97 which is erected from the upper rail 47 of the slide device 41. The lock lever 95 is rotatably supported by a lever support member 99 attached to the lock support bracket 97. A lock recess 101 is provided on one end side of the lock lever 95, and is engaged with the guide pin 79. The slider 83 is fixed to the lower end of the guide pin 79 as described above, and is slidably fitted on the guide rail 75. A rod 93a of a solenoid 93 is rotatably connected to the other end of the lock lever 95, and a return spring 93b is attached to the rod 93a.

Although not shown, a slide switch operated by an occupant is provided on the armrest portion of the automobile door, etc., and the operation signal is input to the controller 43. Further, a door switch is provided on the car door, and an opening / closing signal of the car door is output by the controller 43.
To be entered.

When the left and right lead screws 57 are synchronously rotated through the gearbox 61 by the synchronous driving of the left and right motors 63, the nut 59 moves forward or backward with respect to the lead screw 57, and slides left and right. The upper rail 47 of the devices 39 and 41 is connected to the lower rail 4
5 can be slid back and forth. As a result, the cushion frame 27 slides in the front-rear direction via the rotation guide mechanisms 69, 71, 73 and the guide pins 79, 81, so that the vehicle seat 21 can be slid forward and backward in a normal state. At this time, the lock mechanism 8
9, the cushion lever 27 is locked to the slide device 41 by the lock lever 95 engaging with the guide pin 79, and rotation about the rotation pin 67 is blocked. Therefore, the slide devices 39, 4
The slide adjustment by 1 can be surely performed.

Next, when the solenoid 93 is operated to pull the other end of the lock lever 95 via the rod 93a, the lock lever 95 rotates about the lever support member 99,
The lock recess 101 on one end side comes off the guide pin 79,
The lock by the lock mechanism 89 is released. In this state, for example, by driving only the motor 63 on the inner side in the vehicle width direction, the upper rail 47 of the slide device 41 is driven.
When is slid forward, a forward engaging force is applied to the guide pins 79, 81 from the guide rails 75, 77 via the sliders 83, 85, and the portion of the cushion frame 27 on the inner side in the vehicle width direction moves forward. And As a result, the cushion frame 27 rotates outward about the rotation pin 67 in the vehicle width direction. At this time, guide pin 7
9, 81 can be moved outward in the vehicle width direction along the guide rails 75, 77 via the sliders 83, 85 by the bending of the guide rails 75, 77 while the engaging force is applied from the guide rails 75, 77. . At the same time, the guide rail 87 of the rotation guide mechanism 73 can also move outward in the vehicle width direction due to the bending of the slider of the guide pin (not shown). Therefore, the cushion frame 27 can rotate without difficulty around the rotation pin 67.

Next, a further explanation will be given using the control flow chart of FIG.

In a normal state, that is, when an occupant is seated on the vehicle seat 21 and it is determined in step S31 that the door is not open, the pair of left and right sliding devices 39, 4 is used.
1 operates in synchronism, and the vehicle seat 21 moves back and forth as a whole according to the operation of the seat slide switch by the occupant. Upper rail 4 to lower rail 45 at this time
The position 7 is detected by the position sensor in the gear box 61 and input to the controller 43.

When the vehicle door is opened to get off or get on the occupant, a YES determination is made in step S31, and the current position of the seat slide is determined in step S2.
That is, the positions of the left and right upper rails 47 with respect to the left and right lower rails 45 are stored.

Next, in step S3, the vehicle seat 2
In order to rotate 1 the rotation lock is released.
This rotation lock release is performed by the release signal sent from the controller 43 to the solenoid 93 of the lock mechanism 89, and the solenoid 93 performs the above operation.

Next, in step S4, the left and right seat slides are moved to predetermined positions. Vehicle seat 2
Even if the vehicle seat 21 is rotated around the rotation pin 67 when the vehicle 1 is moved forward or backward by adjusting the slide devices 39 and 41 and is not in the fixed position, the vehicle seat 21 is slightly displaced from the entrance / exit. Therefore, there is a possibility that the ease of getting on and off may be impaired. When the vehicle seat 21 is rotated by the execution of step S4, it is always performed at a fixed position. Therefore, a signal is sent from the controller 43 to the left and right motors 63 of the left and right slide devices 39 and 41, and the vehicle seat 21 moves to a fixed position. At the same time, when the left and right slide devices 39, 41 are in the fixed position, the slide device 41 on the inner side in the vehicle width direction is driven forward relative to the slide device 39 on the outer side at the position. As a result, as described above, the cushion frame 27 is rotated outward in the vehicle width direction about the rotation pin 67, and the vehicle seat 2
1 can be directed to the outer side in the vehicle width direction. Therefore, it is possible to extremely easily get off or get on the vehicle.

When the seat slide is moved to a predetermined position, the seat slide devices 39 and 41 may move to the fixed positions and to rotate at the same time. There is also a state in which the slide device 39 on the outside slides to the rear side. If the slide device 39 on the outer side in the vehicle width direction is in a fixed position from the beginning, the slide device 39 is fixed and only the slide device 41 on the inner side in the vehicle width direction moves to the front side. Further, when the slide device 39 on the outer side in the vehicle width direction is behind the fixed position, there is also a state where the slide device 39 moves to the fixed position on the front side and the slide device 41 on the inner side moves to the front side.

In step S5, it is determined whether or not the door is closed. If the door is not closed, the current state is maintained. If it is closed, the process proceeds to step S6, and the left and right seat slides are moved to the storage position. Restore. That is, from the controller 43 to the motor 6 of the left and right slide devices 39 and 41
A signal is sent to No. 3 to automatically restore the position stored in step S2, that is, the slide position adjusted by the occupant.

Next, in step S7, it is determined whether or not the seat slide has returned to the storage position. If not, the motor 63 is driven until it returns,
If it is determined that the rotation has been restored, the process proceeds to step S8, and the rotation lock operation is performed. That is, a signal is sent from the controller 43 to the solenoid 93 and the solenoid 93 is turned off.
Becomes As a result, the return spring 93b returns the rod 93a, and the guide pin 7 by the lock lever 95 is returned.
9 is locked, and the cushion frame 27 is locked to the slide device 41 as described above.

FIG. 7 shows the state of the vehicle seat 21 rotated as described above. As shown in FIG. 7, the direction P before rotation is along the slide devices 39 and 41. On the other hand, when the cushion frame 27 rotates by θ around the rotation pin 67, the vehicle seat 2
1 is in the direction of arrow Q, and is in a state after rotation.

FIG. 8 and FIG. 9 schematically show the above operation. 8A is a plan view showing a portion below the cushion frame 27, FIG. 8B is a side view, and FIG. 9 is a plan view showing a state after rotation. The states of FIGS. 8 (a) and 8 (b) are normal states in which the lock mechanism is activated, and FIG. 9 is the state of getting off or getting on the vehicle.
That is, the cushion frame 27 is rotated by θ from the normal state.

As described above, according to the first embodiment of the present invention, the vehicle seat 21 can be rotated outward in the vehicle width direction so that an occupant can get in and out of the vehicle very easily, and the slide devices 39, 41 are provided. The seat slide can also be performed by the operation of the passenger. Further, since the cushion frame 27 is supported on the slide devices 39 and 41, the cushion frame 27 can be easily configured as a general vehicle seat and can be manufactured separately.

In the above embodiment, the cushion frame 27 is mounted on the slide device 3 at the rear portion on the outer side in the vehicle width direction.
Although it is rotatably supported by 9, it may be configured as shown in FIG.

That is, as shown in FIG. 10A, the cushion frame 27 is slid at the rear portion on the inner side in the vehicle width direction.
The upper rail 47 is rotatably supported by a rotating pin 67. In this case, the rotation guide mechanism 69 on the inner side in the vehicle width direction and the rotation guide mechanism 71 on the outer rear side are those in which the guide rails 75 and 77 are fixed to the upper rail 47 of the slide devices 39 and 41. The rotation guide mechanism 73 has a guide rail 87 fixed to the cushion frame 27 side.

In FIG. 10B, the front and rear intermediate portions of the cushion frame 27 on the outer side in the vehicle width direction are rotatably supported by the upper rail 47 of the slide device 39 by the rotating pin 67. Then, the guide rails 75 and 77 of the rotation guide mechanism 69 on the front side in the vehicle width direction and the rotation guide mechanism 71 on the rear side of the outer side are fixed to the upper rails 47 of the left and right slide devices 39 and 41, and the rotation of the rear portion inside the vehicle width direction is rotated. The guide mechanism 73 and the guide rail 87 of the rotation guide mechanism 73 at the outer front portion are fixed to the cushion frame 27.

Also in the structures shown in FIGS. 10 (a) and 10 (b), the cushion frame 27 can be rotated by the angle .theta. About the rotary pin 67, and the same effect as above can be obtained.

In the above embodiment, the slide device 3
Although the motors 9 and 41 are electrically driven by driving the motor 63, the same effect can be obtained even if they are manual. Further, even if the lock mechanism 89 is not particularly provided, when the left and right slide devices 39 and 41 are synchronized with each other, the vehicle seat 21 mechanically rotates largely or moves back and forth with respect to the slide devices 39 and 41. There is nothing to do.

(Second Embodiment) FIGS. 11 and 12 show a second embodiment.
1 shows an embodiment. FIG. 11 is a schematic partially omitted side view, and FIG. 12 is an explanatory view of the same operation. In this embodiment,
Supporting means that can change the seat angle of the cushion portion is provided. As a result, when the cushion portion rotates outward in the vehicle width direction, the seat surface angle of the cushion portion can be reduced. That is, the seat lifter mechanism 103 is used as the supporting means, the front left and right of the cushion frame 27 are supported by the front end lifter 105, and the rear left and right are supported by the rear end lifter 107. Therefore, when the vehicle seat 21 rotates outward in the vehicle width direction, the rear end lifter 107 can be largely controlled to greatly raise the rear portion of the cushion frame 27, thereby reducing the seat surface angle of the cushion portion. Such a reduction in the seat surface angle further improves the entry / exitability with respect to the vehicle seat 21.

Further, as described above, since the lower rail 45 is angled so that the front side becomes higher, when the left and right slide devices 39 and 41 relatively move forward and backward, the cushion frame 27 is supported between the left and right sides. A step may occur and the vehicle seat 21 may tilt in the vehicle width direction. On the other hand, the front end lifter 10 on the inner side in the vehicle width direction of FIG.
5. By controlling the lift amount of the rear end lifter 107 to be smaller than the lift amount of the outer front end lifter 105 and the rear end lifter 107 of the same (b), the height between the left and right of the cushion frame 27 is the same height h. Therefore, there is no inclination in the left-right direction, and the entry / exitability is further improved.

At the same time, when the cushion portion is rotated, the backrest portion is also controlled to be substantially vertical, so that the getting on / off property can be further improved.

13 and 14 show a structure in which the guide rail is tilted as a support means for reducing the seat surface angle.
13A shows a slide device 41 on the inner side in the vehicle width direction, and FIG. 13B shows a slide device 39 on the outer side thereof.
FIG. 14 is a schematic view seen from the front side of the vehicle body. These figures 1
3, the guide rail 75 on the inner side in the vehicle width direction as shown in FIG.
77 is inclined from the upper rail 47 toward the outside in the vehicle width direction, and the guide rail 87 on the outside in the vehicle width direction is inclined toward the inside in the vehicle width direction. Therefore, as described above, the left and right slide devices 39,
When the cushion frame 27 rotates outward in the vehicle width direction due to the relative movement of 41, the guide rails 75, 77, 87 guide the left and right sliding devices 39, 37 as shown in FIG.
41 and the relative height of the cushion frame 27 changes,
The seating angle can be reduced to improve the entry / exitability.

(Third Embodiment) FIGS. 15 and 16 show a third embodiment.

In this embodiment, the vehicle seat 109 is configured as a rear seat. That is, the rear seats include the left and right vehicle seats 109 and the central seat 111. The left and right vehicle seats 109 have the same configuration. Explaining the vehicle seat 109 on the left side, the vehicle seat 10
Reference numeral 9 includes a cushion portion 113 and a backrest portion 115, and is generally substantially the same in construction as the vehicle seat 21. However, in the vehicle seat 109, the cushion frame 27 and the backrest frame 31 are not a reclining device but are connected by a hinge 117. Then, when the cushion portion 113 is rotated in the same manner as described above, the backrest portion 115 is attached to the cushion portion 113.
It is supported by a backboard 121 on the vehicle body side through upper, lower, left and right guides 119 for raising the vehicle. That is, the fixed pin 123 is provided on the back board 121 in a protruding manner, and the left and right guide plates 125 are engaged with the fixed pin 123 by the left and right guide grooves 127. Both left and right ends of the guide plate 125 are slidably fitted in the upper and lower guide grooves 131 provided in the backrest frame 31. Further, the guide plate 125 has a curvature larger than a rotation curvature when the backrest portion 115 and the cushion portion 113 integrally rotate outward in the vehicle width direction.
Therefore, when the cushion portion 113 rotates outward in the vehicle width direction as in the first embodiment, the guide plate 125 is guided by the left and right guide grooves 127 to the fixing pin 123,
In addition, the backrest frame 31 is guided by the guide plate 125 via the upper and lower guide grooves 131. Therefore,
With the rotation of the cushion portion 113, the backrest portion 115 is guided by the guide plate 125 to allow the hinge 11 to move.
17 is guided to get up through FIG.
(B) is in the state of rotation as compared with the state of being fixed, so that it is possible to improve the entry / exitability of the rear seats. Although the sheet is driven by using the motor in the above-described embodiment, the present invention is not limited to this, and it goes without saying that the sheet can be manually operated.

[0056]

As is apparent from the above, according to the invention of claim 1, the vehicle seat can be rotated outward in the vehicle width direction at the time of getting on and off, so that the getting on and off property can be improved.
Slide adjustment can also be performed by a slide device. Moreover, since the cushion portion is not directly rotated and supported on the vehicle body side but is supported by the slide device, the cushion portion can be easily configured as a general seat and can be easily manufactured separately.

According to the second aspect of the invention, the cushion portion can be rotated by the curved guide rail and the guide pin, so that the cushion portion can be surely rotated.

According to the third aspect of the present invention, the seat surface angle can be reduced during the rotation of the cushion portion to further improve the entry / exitability.

According to the fourth aspect of the invention, the seat surface angle can be reliably reduced by the mechanism of the seat lifter mechanism.

According to the fifth aspect of the present invention, when the cushion portion is rotated, the inclination in the vehicle width direction can be suppressed, and the entry / exitability can be further improved.

According to the sixth aspect of the invention, the seat surface angle can be reduced by the inclination of the guide rail, and the structure is extremely simple.

According to the seventh aspect of the present invention, when the cushion portion rotates in the rear seat, the backrest portion can be guided so as to be raised, and the getting on / off property of the rear seat can be further improved.

According to the invention of claim 8, the cushion portion can be locked to the slide device by the lock mechanism.
Stable slide adjustment can be performed.

According to the ninth aspect of the present invention, the cushion portion can be automatically rotated according to the opening / closing of the door, and the entry / exitability is further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle seat according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part according to the first embodiment of the present invention.

FIG. 3 is an enlarged side view around a rotary pin according to the first embodiment of the present invention.

FIG. 4 is an enlarged plan view around the lock mechanism according to the first embodiment of the present invention.

FIG. 5 is a vertical sectional view around the lock mechanism according to the first embodiment of the present invention.

FIG. 6 is a flowchart according to the first embodiment of the present invention.

FIG. 7 is a perspective view for explaining the operation according to the first embodiment of the present invention.

FIG. 8 relates to the first embodiment of the present invention, (a) is a partially omitted schematic plan view, and (b) is a partially omitted schematic side view.

FIG. 9 is a schematic plan view with partial omission of the explanation of the operation according to the first embodiment of the present invention.

FIG. 10 relates to a modification of the first embodiment of the present invention,
(A) is a partially omitted schematic plan view supporting a rear portion of the cushion frame on the opposite side, and (b) is a partially omitted schematic plan view supporting an intermediate portion of the cushion frame.

FIG. 11 is a schematic side view with a part omitted according to the second embodiment of the present invention.

FIG. 12 is related to the description of the operation according to the second embodiment of the present invention.
(B) is a partially omitted side schematic view of the same.

FIG. 13 is a modified example according to the second embodiment of the present invention, in which (a) is a schematic side view of a part of the vehicle width direction inner side,
(B) is a partially omitted side schematic view of the same.

FIG. 14 is a partially omitted front schematic view for explaining an operation according to a modification of the second embodiment of the present invention.

FIG. 15 is a partial perspective view of a vehicle seat according to a third embodiment of the present invention.

FIG. 16 shows a main part according to a third embodiment of the present invention,
(A) is a perspective view, (b) is a plan view.

FIG. 17 is a vehicle seat according to a third embodiment of the present invention, in which (a) is a perspective view when fixed and (b) is a perspective view when rotated.

FIG. 18 is a perspective view showing a state in which a vehicle seat according to a conventional example is set in an automobile.

19A and 19B are perspective views showing a supporting state of a cushion frame and FIG. 19B is a plan view according to a conventional example.

[Explanation of symbols]

 21,109 Vehicle seat 23,113 Cushion part 25,115 Backrest part 27 Cushion frame (frame) 29 Cushion pad (pad) 31 Backrest frame (frame) 33 Backrest pad (pad) 39,41 Sliding device 43 Controller (Control device) 53,55 Lead screw mechanism (driving means) 69,71,71 Rotation guide mechanism 75,77,87 Guide rail 89 Lock mechanism 67 Rotating pin (rotating shaft) 103 Seat lifter mechanism 119 Guide 121 Backboard

Claims (9)

[Claims] 1. A vehicle seat, comprising a cushion portion composed of a frame and a pad, and a backrest portion, the left and right sides of the frame of the cushion portion being supported slidably in the front-rear direction by left and right slide devices. A drive means is provided for each device to independently drive the slide device, the frame of the cushion portion is rotatably attached to the one slide device, and is engaged with at least the other slide device in the front-back direction. A vehicle seat characterized by being joined together by a rotation guide mechanism that allows movement in the vehicle width direction by rotation of the center of the rotation axis. 2. The vehicle seat according to claim 1, wherein the rotation guide mechanism is a curved guide rail attached to one of the slide device and the frame of the cushion portion, and is engaged with the guide rail. A vehicle seat characterized by comprising a guide pin attached to the other side. 3. The vehicle seat according to claim 1, further comprising a support means capable of changing a seat surface angle of the cushion portion, the seat surface of the cushion portion when the cushion portion performs the rotation. A vehicle seat characterized by reducing corners. 4. The vehicle seat according to claim 3, wherein the support means is a seat lifter mechanism that raises a rear end of the cushion portion or lowers a front end thereof. 5. The vehicle seat according to claim 4, wherein the seat lifter mechanism causes the rear end of the cushion portion to rise or the front end to fall less in the vehicle width direction inside than in the outside. Seat for the vehicle. 6. The vehicle seat according to claim 3, wherein the support means is formed by inclining the guide rail in a vehicle width direction. 7. The vehicle seat according to claim 1, wherein the cushion portion and the backrest portion are rear seats, and the backrest portion is relative to the cushion portion. A vehicle seat characterized in that the backrest portion is connected to a hinge and is supported by a backboard on the vehicle body side through upper, lower, left and right guides that raise the backrest portion with respect to the cushion portion when the cushion portion rotates. 8. The vehicle seat according to claim 1, further comprising a releasable lock mechanism that fixes the frame of the cushion portion to the slide device. Seat for. 9. The vehicle seat according to claim 1, further comprising a slide switch operated by an occupant, a door switch for detecting opening / closing of a vehicle door, and a signal from the slide switch. The left and right slide devices are driven to slide in synchronization with each other, and the drive means is configured to relatively drive the slide device on the inner side in the vehicle width direction and the slide device on the outer side in response to a door opening signal from the door switch. A vehicle seat having a control means for controlling the vehicle seat.