JP2022001487A - Vehicle seat and vehicle unit - Google Patents

Abstract

To provide a vehicle seat having a side support device which can ensure holding property of a seated passenger and assist the passenger in getting on and getting off.SOLUTION: A vehicle seat comprises: a side support device 70 for supporting a cushion side part 1c so as to be movable between a projection position and a retreat position; a side plate 71 moving between the projection position and the retreat position while supporting the cushion side part 1c; a lock device 80 for locking the side plate 71 at the projection position; and an unlock device 90. The unlock device 90 is disposed at a side portion of the seat cushion and comprises an unlock lever 91 moving from a lock position to an unlock position according to a seating load. The unlock lever 91 comprises a first portion located inward of the side plate 71 in a seat width direction and a second portion located at the seat rear side with respect to the side plate 71.SELECTED DRAWING: Figure 17B

Description

The present invention relates to a vehicle seat and a vehicle unit, and more particularly to a vehicle seat and a vehicle unit provided with a side support device for assisting an occupant's boarding / alighting operation.

Conventionally, in a seat cushion on which an occupant can sit, the side portion in the seat width direction is provided so that the seating surface protrudes from the central portion in the seat width direction, and the seating surface recedes from the central portion. Vehicle seats with side support devices that are movably supported to and from the retracted position provided are known.
When the side portion of the seat cushion is supported in the upright position by the side support device, the holdability of the occupant can be improved when the occupant is seated. When the side portion is supported in the retracted position, it is possible to reduce the burden for the occupant to get over the side portion when the occupant opens the door of the vehicle and gets on and off.

For example, in a vehicle seat provided with the boarding / alighting support device described in Patent Document 1, a side frame that movably supports the side portion of the seat cushion between an upright position and an inverted position, and a seat cushion with a seating load of an occupant. It is equipped with a lock mechanism that locks the side frame when it hangs on the center of the.
Specifically, the lock mechanism is configured to lock the side portion in an upright position when the occupant is seated on the seat body, and unlock the side frame when the occupant stands up and gets on and off.

Further, in the vehicle seat provided with the boarding / alighting support device described in Patent Document 2, a cushion holder that movably supports the side support cushion between the upright position and the tilted position, and an upright holding device that holds the cushion holder in the upright position. It is provided with an upright holding release device that releases the upright holding state of the cushion holder and moves the cushion holder from the upright position to the tilted position.
Specifically, when the vehicle door is opened for the occupant to get on and off the vehicle, the upright holding state of the cushion holder is released, and when the vehicle door is closed after the occupant gets on and off, the cushion holder is returned to the upright holding state. ..

Japanese Unexamined Patent Publication No. 61-57435 Japanese Unexamined Patent Publication No. 2007-282746

By the way, in the boarding / alighting support device as in Patent Documents 1 and 2, the side portion is locked or unlocked in an upright position according to the seating motion of the occupant and the opening / closing motion of the vehicle door. It was required to securely lock the side portion in the upright position except when getting on and off the vehicle.
The reason is, for example, if the occupant moves up a little from the seat body or opens the vehicle door while the occupant is seated, the side part of the seat cushion tilts and sits down. There was a risk of impairing the holdability of the occupants.

In general, vehicle seats are equipped with a reclining device that rotatably connects the seat back to the seat cushion, and a slide rail device that rotatably connects the seat cushion to the vehicle body floor in the front-rear direction of the seat. Therefore, when attaching the boarding / alighting support device to the seat cushion, it has been desired to arrange it compactly in consideration of the arrangement relationship so as not to interfere with each other.
Further, since the vehicle seat has a relatively complicated structure by being provided with the above-mentioned device and the like, it has been desired to facilitate the assembly work of the component parts.

In addition, it was generally desired for the occupants to be supported by the boarding / alighting support device especially when getting off.
Therefore, in particular, there has been a demand for a boarding / alighting support device that can more reliably assist the occupant's disembarking operation.

The present invention has been made in view of the above problems, and an object of the present invention is a side support capable of assisting an occupant's getting on and off operation while stably ensuring a seated occupant's holdability. It is to provide a vehicle seat and a vehicle unit equipped with the device.
Another object of the present invention is to provide a vehicle seat and a vehicle unit in which the components including the side support device are compactly arranged and the assembly work of the components is facilitated.
Another object of the present invention is to provide a vehicle seat and a vehicle unit particularly provided with a side support device capable of more reliably assisting the occupant's disembarkation operation.

According to the vehicle seat of the present invention, the problem is that the seat cushion on which the occupant sits and the side portion of the seat cushion in the seat width direction are provided so that the seating surface protrudes from the central portion in the seat width direction. A vehicle seat comprising a side support device for supporting the vehicle so as to be movable between a protruding position and a retracting position provided so that the seating surface retracts from the protruding position, wherein the side support device is provided. Is a side plate that moves between the protruding position and the retracted position while supporting the side portion, a locking device that locks the side plate at the protruding position, and unlocking that unlocks the locking device. The unlocking device comprises an apparatus, wherein the unlocking device is arranged on a side portion of the seat cushion in the seat width direction and operates to release the locked state, and the unlocking member comprises. It is solved by having a first portion located inside the seat width direction with respect to the side plate and a second portion located behind the seat with respect to the side plate.
With the above configuration, in order to move the side portion of the seat cushion from the protruding position to the retracted position when the occupant gets on and off the vehicle, it is necessary to operate the unlocking member provided on the side portion of the seat cushion.
Here, because the unlocking member has a first portion located inside the side plate in the seat width direction and a second portion located rearward of the side plate in the side plate. , The required size can be secured while avoiding the position of the side plate, and the unlocking member can be easily operated.

At this time, when the unlocking member moves from the lock position for maintaining the locked state to the unlocked position for releasing the locked state by applying a predetermined load to the seating surface of the side portion. good.
With the above configuration, in order to move the side portion of the seat cushion from the protruding position to the retracted position when the occupant gets on and off the vehicle, a predetermined load is applied to the seating surface of the side portion of the seat cushion to release the lock member. Need to work.
Therefore, as compared with the conventional example, the lock release device can be operated according to the operation from the occupant's boarding to the seating or the operation from the occupant's seating to the disembarking.
That is, it is possible to realize a side support device capable of assisting the occupant's getting on and off operation while stably ensuring the holdability of the seated occupant.
Further, as described above, since the unlocking member has a first portion located inside the seat width direction with respect to the side plate and a second portion located behind the seat with respect to the side plate. The lock release member can be arranged close to the central portion where the seating load of the occupant is easily applied in the seat width direction and the rear portion where the seating load is easily applied in the front-rear direction of the seat. Therefore, the seating load can be efficiently transmitted to the unlocking member.

At this time, the unlocking member has a substantially L-shaped shape and has the first portion extending in the front-rear direction of the seat and the second portion extending in the width direction of the seat from the rear portion of the first portion. It is good to be there.
With the above configuration, the seating load from the occupant can be more efficiently transmitted to the two unlocking members at the side portion of the seat cushion.

At this time, the unlocking member is a first unlocking member, and the unlocking device further includes a second unlocking member that operates to release the locked state, and the second unlocking member. Is preferably arranged outside the seat width direction of the first unlocking member and on the front side of the seat of the first unlocking member.
Further, it is preferable that the first unlocking member is arranged in the central portion of the seat cushion, and the second unlocking member is arranged in the side portion of the seat cushion.
With the above configuration, it is necessary to operate the two unlocking members in order to move the side portion of the seat cushion from the protruding position to the retracted position when the occupant gets on and off the vehicle.
As a result, the side portion can be more reliably locked at the protruding position except when the occupant gets on or off the vehicle.
Further, with the above configuration, the seating load from the occupant can be more efficiently transmitted to the two unlocking members at the side portion of the seat cushion.
Specifically, the seating load on the buttocks of the seated occupant is likely to be applied to the first unlock member, and the seating load on the thigh of the occupant is likely to be applied to the second unlock member.

At this time, the unlocking device is in the locked state when the first unlocking member is located at the unlocking position and the second unlocking member moves from the locking position to the unlocking position. It is good to cancel.
With the above configuration, the first unlocking member is located in the unlocked position when the occupant is seated, and the second unlocked member is unlocked from the locked position when the seated occupant tries to get out of the vehicle. Since the vehicle moves to the position, the unlocking member can be operated in a manner suitable for the movement of the seated occupant getting off the vehicle.

At this time, the slide rail device is provided with a slide rail device having a lower rail fixed to the vehicle body floor and extending in the front-rear direction of the seat and an upper rail slidably attached along the lower rail to support the seat cushion. Is preferably arranged so as to avoid a position where it overlaps with the side plate in the vertical direction and avoids a position where it overlaps with the unlocking member in the vertical direction.
As described above, when attaching the side support device to the seat cushion, the side plate that moves in the vertical direction between the protruding position and the retracted position is arranged so as to avoid the position where it overlaps with the slide rail device. The height of the rails does not become excessively large, and a compact arrangement of components can be realized.
Further, since the unlocking member that operates between the locking position and the unlocking position is arranged so as to avoid the position where the slide rail device and the slide rail device are vertically overlapped with each other, a more compact arrangement of the components can be realized.

At this time, the seat cushion is configured by placing a cushion material on a cushion frame serving as a skeleton and covering it with a skin material, and at a predetermined position of the cushion material, an engaging hole provided in the cushion frame. It is preferable that an engaging protrusion for engaging with the skeleton is provided.
With the above configuration, the work of assembling the cushion material to the cushion frame becomes easy, and the assembling rigidity is improved.

At this time, the engaging protrusion is provided on the front portion of the cushion material and extends downward toward the cushion frame, and is provided on the rear portion of the cushion material and faces the cushion frame. It is preferable to have a rear engaging protrusion extending to the rear side.
With the above configuration, the work of assembling the cushion material to the cushion frame becomes easier, and the assembling rigidity is further improved.

Further, the vehicle seat, a lighting device attached to the vehicle seat or the interior portion of the vehicle, and a control device for controlling light emission by the lighting device in response to a predetermined operation of the vehicle seat or the vehicle. A vehicle unit equipped with, can also be realized.

According to the first aspect of the present invention, in order to move the side portion of the seat cushion from the protruding position to the retracted position when the occupant gets on and off the vehicle, the unlocking member provided on the side portion of the seat cushion is operated. I need to let you. Here, since the unlocking member has a first portion located inside the side plate in the seat width direction and a second portion located rearward of the side plate in the side plate, the unlocking member has a second portion. The required size can be secured while avoiding the position of the side plate, and the unlocking member can be easily operated.
According to the second aspect of the present invention, the operation of the unlocking member can be realized with a relatively simple configuration using the seating load of the occupant. Therefore, as compared with the conventional example, the lock release device can be operated according to the operation from the occupant's boarding to the seating or the operation from the occupant's seating to the disembarking. In addition, the seating load can be efficiently transmitted to the first unlock member.

According to the third aspect of the present invention, the seating load from the occupant can be more efficiently transmitted to the two unlocking members at the side portion of the seat cushion.
According to the inventions of claims 4 and 5, it is necessary to operate two unlocking members in order to move the side portion of the seat cushion from the protruding position to the retracted position when the occupant gets on and off the vehicle. As a result, the side portion can be more reliably locked at the protruding position except when the occupant gets on or off the vehicle.
Further, the seating load from the occupant can be more efficiently transmitted to the two unlocking members at the side portion of the seat cushion. Specifically, the seating load on the buttocks of the seated occupant is likely to be applied to the first unlock member, and the seating load on the thigh of the occupant is likely to be applied to the second unlock member.

According to the sixth aspect of the present invention, the unlocking member can be operated so as to suitably correspond to the movement of the seated occupant getting off the vehicle.
According to the invention of claim 7, the height of the seat cushion does not become excessively large, and a compact arrangement of components can be realized.
According to the inventions of claims 8 and 9, the work of assembling the cushion material to the cushion frame becomes easy and the assembling rigidity is improved.
According to the invention of claim 10, a vehicle unit including the vehicle seat, a lighting device, and a control device for controlling light emission by the lighting device in response to a predetermined operation of the vehicle seat or the vehicle is also provided. realizable.

It is external perspective view of the vehicle seat of this embodiment. It is an external plan view of a vehicle seat. It is a figure explaining the state of the seat body in a normal position. It is a figure explaining the state which the seat body moved from a normal position to a reclining position. It is a perspective view of the seat frame which becomes a skeleton. It is a top view of the cushion frame which becomes a skeleton. It is an exploded perspective view which shows the assembly structure of a cushion frame and a cushion material. It is a perspective view which shows the slide bar device. It is a figure explaining the state of the seat frame in a normal position. It is a figure explaining the state which the seat frame moved from a normal position to a reclining position. It is an enlarged view of the main part of FIG. 1, and is the perspective view which shows the belt assist device. It is an exploded perspective view of the belt assist device. It is a perspective view which shows the side support device. It is a figure which shows the state before the occupant gets on board. It is a figure which shows the state of the side support device before the occupant gets on board. It is a figure which shows the state when an occupant is on board. It is a figure which shows the state of the side support device when an occupant is on board. It is a figure which shows the state when an occupant is on board. It is a figure which shows the state of the side support device when an occupant is on board. It is a figure which shows the state when an occupant is seated. It is a figure which shows the state of the side support device when an occupant is seated. It is a figure which shows the state when a occupant is getting off. It is a figure which shows the state of the side support device when an occupant is getting off. It is a figure which shows the state when a occupant is getting off. It is a figure which shows the state of the side support device when an occupant is getting off. It is a figure which shows the state after the occupant got off. It is a figure which shows the state of the side support device after the occupant gets off. It is a figure which shows the state which the lock device locked the side part in the protruding position in the side support device of FIG. It is a figure which shows the state which the 2nd lock release lever moved from the lock position to the lock release position in the side support device of FIG. FIG. 14 is a diagram showing a state in which the second lock release lever and the first lock release lever are moved to the unlock position in this order in the side support device of FIG. It is a figure which shows the state which the 2nd lock release lever returned from the lock release position to the lock position in the side support device of FIG. FIG. 16 is a diagram showing a state in which the first lock release lever and the second lock release lever are moved to the unlock position in this order in the side support device of FIG. FIG. 17 is a diagram showing a state in which the lock device is unlocked and the side portion is moved from the protruding position to the retracted position in the side support device of FIG. FIG. 18 is a diagram showing a state in which the first lock release lever and the second lock release lever are returned to the lock positions in this order in the side support device of FIG. 18, and the lock device is locked again. It is a perspective view of the inside of a vehicle, and is the figure which shows that the lighting device of a vehicle unit is in a standby mode. It is a block diagram which shows the electric structure of a vehicle unit. It is a figure which shows that the lighting device enters a pick-up mode when an occupant gets on board. It is a figure which shows that the lighting apparatus enters a pick-up mode. It is a figure which shows that the lighting apparatus enters a pick-up mode. It is a figure which shows that when the occupant is seated, the belt assist device is activated, and the lighting device is put into a standby mode. It is a figure which shows that the lighting apparatus enters a standby mode. It is a figure which shows that the seat switching device is activated, and the lighting device is put into a relax mode. It is a figure which shows that the lighting apparatus enters a relax mode. It is a figure which shows that the seat switching device is activated, and the lighting device is put into a return mode. It is a figure which shows that the lighting apparatus enters a return mode. It is a figure which shows that the side support device is activated, and the lighting device is put into a see-off mode when an occupant gets off. It is a figure which shows that the lighting apparatus enters a send-off mode. It is a figure which shows that the lighting apparatus enters a send-off mode. It is a main flow diagram which shows an example of the control of a vehicle unit. It is a continuation of the main flow diagram of FIG. 33A. It is a subflow diagram which shows the control 1 of the belt assist device. It is a subflow diagram which shows the control 2 of a belt assist device. It is a subflow diagram which shows the control 1 of the seat switching apparatus. It is a subflow diagram which shows the control 2 of a seat switching apparatus. It is a subflow diagram which shows the control of a side support device.

Hereinafter, the vehicle seat according to the embodiment of the present invention will be described with reference to FIGS. 1 to 36.
In this embodiment, the side portion of the seat cushion is a seat for a protruding vehicle, and a side plate that moves between the protruding position and the retracted position while supporting the side portion, and a lock device that locks the side plate at the protruding position. , Equipped with an unlocking device that unlocks, the unlocking device is located on the side of the seat cushion and has an unlocking lever that moves from the locked position to the unlocked position according to the seating load of the occupant. The vehicle is characterized in that the unlocking lever has a first portion located inside the seat width direction with respect to the side plate and a second portion located rearward of the seat with respect to the side plate. It relates to the invention of a sheet for use.
The side on which the occupant sits with respect to the seat back of the seat is the front side of the seat.

The vehicle seat S of the present embodiment is, for example, a rear seat corresponding to a rear seat of a vehicle.
As shown in FIGS. 1 and 2, the vehicle seat S has a seat cushion 1, a seat back 2, and a headrest 3, a seat body on which an occupant can sit, and a seat cushion 1 with respect to the vehicle body floor. A seat switching device having a slide rail device 30 that supports the seat back 2 so as to be movable back and forth, and a slide bar device 40 that supports the seat back 2 so as to be movable up and down with respect to the vehicle body base on the rear side of the seat back 2. I have.
The vehicle seat S is a seat capable of switching the seat body between the normal position shown in FIG. 3A and the reclining position shown in FIG. 3B by using the seat switching device.
Specifically, in the vehicle seat S, the seat cushion 1 slides forward of the seat by operating the slide rail device 30 from the normal position of FIG. 3A, and the seat back 2 linked to the seat cushion 1 is connected. Is pulled forward. Then, the upper portion of the seat back 2 slides downward while being supported by the slide bar device 40, and the lower portion of the seat back 2 rotates and moves forward with respect to the upper portion. As a result, the vehicle seat S moves to the reclining position shown in FIG. 3B.

Further, as shown in FIGS. 1 and 2, the vehicle seat S includes a belt assist device 50 attached to an upper portion of the back side portion 2c of the seat back 2.
As shown in FIG. 9, the vehicle seat S uses the belt assist device 50 to reach at least a part of the seat belt 4 mounted on the back side portion 2c of the seat back 2 within the reach of the seated person. It is a sheet that can be moved to an easy position.
Specifically, in the vehicle seat S, by operating the belt assist device 50, both the front surface of the seat back 2 and the seat belt 4 and the upper end of the seat back 2 and the seat belt 4 are located. A part of the seat belt 4 can be pushed out from the rear so as to create a gap.

Further, as shown in FIGS. 1 and 2, the vehicle seat S includes a side support device 70 that supports the cushion side portion 1c of the seat cushion 1 so as to be movable between a protruding position and a retracted position, and a cushion side. It includes a lock device 80 that locks the portion 1c at a protruding position, and an unlock device 90 that unlocks the lock device 80.
The vehicle seat S is a seat capable of assisting the seated occupant in getting off the vehicle by operating the side support device 70, and the cushion side portion 1c is cushioned as shown in FIGS. 12A and 12B. It is possible to move between the protruding position provided so that the seating surface protrudes from the central portion 1d and the retracted position provided so that the seating surface retracts from the central portion 1d of the cushion as shown in FIGS. 17A and 17B. It is a sheet.
Therefore, when the cushion side portion 1c is supported by the side support device 70 at the protruding position, the holdability of the seated occupant can be improved. Further, when the cushion side portion 1c is supported in the retracted position, it is possible to reduce the burden for the occupant to get over the cushion side portion 1c when the occupant opens the door of the vehicle and gets off the vehicle.

As shown in FIGS. 1 and 2, the seat cushion 1 is a seating portion that supports an occupant from below, and is configured by placing a cushion material 1a on a cushion frame 10 as a skeleton and covering it with a skin 1b. Has been done.
The seat back 2 is a backrest portion that supports the back of the occupant from behind, and is configured by placing the cushion material 2a on the back frame 20 as a skeleton and covering it with the skin material 2b.
The headrest 3 is a head that supports the occupant's head from behind, and is configured by placing a cushion pad 3a on a pillar (not shown) as a core material and covering it with a skin material 3b.
The left and right lateral portions of the seat cushion 1 and the seat back 2 in the seat width direction are formed as cushion side portions 1c and back side portions 2c that support the seated occupant so as to wrap around from the outside in the seat width direction, respectively. ..

The cushion frame 10 is composed of a substantially rectangular frame-like body serving as a skeleton, and as shown in FIGS. 4 and 5, the left and right side frames 11 arranged on the left and right sides and extending in the front-rear direction of the seat, and each of them. It is mainly composed of a front frame 12 arranged in front of the side frame 11 and extending in the left-right direction, and a substantially U-shaped rear frame 13 connecting the rear portions of the side frames 11.
Further, a plate-shaped support frame 14 for connecting the cushion frame 10 and the slide rail device 30 is attached to the bottom surfaces of the side frame 11, the front frame 12, and the rear frame 13, and the upper surface of the rear frame 13 has a plate-shaped support frame 14. A mounting bracket 15 for mounting the cushion material 1a is provided.
Further, on the left and right outer surfaces of the mounting bracket 15, a link 16 for linking the cushion frame 10 and the back frame 20 is provided.

The support frame 14 is composed of a substantially rectangular plate-shaped frame, is arranged in front of the front frame 12, and is rearward from the front support frame portion 14a that supports the thighs of the seat and the left and right end portions of the front support frame portion 14a, respectively. The left and right side support frame portions 14b, which extend to the left and right side support frame portions 14b and are attached to the upper surfaces of the left and right slide rail devices 30a and 30b, respectively, and extend rearward from the central portion of the front support frame portion 14a and are attached to the upper surface of the central slide rail device 30c. It is mainly composed of a central support frame portion 14c to be formed.
The front end portion of the front support frame portion 14a is arranged at a predetermined interval in the left-right direction, and left and right mounting holes 14aa for mounting the cushion material 1a are formed, and the left side support frame portion 14b has a left side support frame portion 14b. A side support device 70 is attached.

As shown in FIG. 6, the mounting bracket 15 includes an engaging hole 15a for engaging a U-shaped rear engaging protrusion 1aa formed at the rear end portion of the cushion material 1a and extending to the rear side. ing.
Specifically, the cushion material 1a is formed at a position in front of the rear engaging protrusion 1aa and the rear engaging protrusion 1aa, extends downward, and engages with the left and right mounting holes 14aa of the front support frame portion 14a. Left and right front engaging protrusions 1ab for fitting are provided.
With the above configuration, the cushion material 1a can be attached to the cushion frame 10 by an easy assembling operation.

The link 16 is mainly composed of an upper link 16a to which an upper end portion is attached so as to sandwich the lower end portion of the back frame 20, and a lower link 16b connecting the lower end portion of the upper link 16a and the attachment bracket 15. There is.
The lower end portion of the lower link 16b is attached to the upper link 16a via the link rotation shaft 16c, and the lower end portion thereof is attached to the mounting bracket 15.

The back frame 20 is composed of a substantially rectangular frame-like body that serves as a skeleton of the seat back 2, and as shown in FIG. 4, an upper frame that constitutes the upper half of the back frame 20 and is composed of a substantially U-shaped pipe member. A plate-shaped center extending in the left-right width direction by connecting the lower frame 22 which constitutes the lower half of the back frame 20 and is composed of a substantially inverted U-shaped pipe member, and the upper frame 21 and the lower frame 22. It is mainly composed of a frame 23 and the like.
The upper frame 21 is arranged on the left and right sides, and connects the left and right side frame portions 21a extending in the vertical direction with the upper end portions of the left and right side frame portions 21a, and connects the headrest 3 with the upper frame portion 21b. It is mainly composed of a plate-shaped connecting frame portion 21c for connecting the left and right side frame portions 21a in the vertical direction and attaching the slide bar device 40.
The lower frame 22 is mainly composed of a lower frame portion 22b that connects the left and right side frame portions 22a and the lower end portions of the left and right side frame portions 22a and to which the link 16 is attached.
The upper portion of the central frame 23 is joined to the upper frame 21 and integrally attached, and the lower portion is attached to the lower frame 22 so as to be rotatable via the back rotation shaft 24.

An attachment wire 25 for attaching the belt assist device 50 is attached to the outer surface of the left side frame portion 21a of the upper frame 21 so as to project outward.
More specifically, the attachment wire 25 is attached with a clip member (not shown) integrally provided with the attachment plate 51 of the belt assist device 50.

<Seat switching device>
Next, a specific configuration of the slide rail device 30 and the slide bar device 40 constituting the seat switching device will be described with reference to FIGS. 3 to 8A and B.
As shown in FIGS. 2, 3, and 5, the slide rail device 30 is a device that supports the seat cushion 1 so as to be movable back and forth with respect to the vehicle body floor, and supports the left and right ends of the seat cushion 1. The slide rail devices 30a and 30b and the central slide rail device 30c that supports the central portion of the seat cushion 1 are provided.
Specifically, the left slide rail device 30a is attached to the front portion of the cushion frame 10, the right slide rail device 30b is attached from the central portion to the rear portion of the cushion frame 10, and the central slide rail device 30c is attached to the cushion frame. It is attached to the rear part of 10.

As shown in FIG. 3, the slide rail device 30 has left and right lower rails 31 fixed to the vehicle body floor and extending in the front-rear direction of the seat, left and right upper rails 32 slidably supported along the lower rails 31, and upper rails 32. A lock member (not shown) that locks the lock member so that it cannot slide, an unlock member (not shown) that unlocks the lock member, and a drive shown in FIG. 5 for driving the unlocked upper rail 32 in the front-rear direction. It is mainly composed of a motor 33 and the like.
The slide rail device 30 includes an ECU (electronic control circuit) as a control means, a drive circuit that supplies drive power to the drive motor 33, and a vehicle body power supply that is connected to the drive motor 33 via the drive circuit. It is connected.

The lower rail 31 is made of a long hollow body and is arranged on the left and right at intervals in the seat width direction. A storage space having a substantially convex cross section is formed along the seat front-rear direction, and the lower rail 31 is formed along the seat front-rear direction. An opening is formed on the upper surface.
The upper rail 32 is composed of a long body that slides and moves along the lower rail 31 in a state of being inserted into the accommodation space of the lower rail 31, and an upper portion thereof is connected to the cushion frame 10 via a support frame 14.

As shown in FIGS. 7, 8A and 8B, the slide bar device 40 is a device that supports the seat back 2 so as to be vertically movable with respect to the vehicle body base on the rear side of the seat back 2, and is provided on the vehicle body base. It is stored and arranged in the storage recess.
The slide bar device 40 is fixed to the vehicle body base via a mounting bracket 41, and extends vertically at intervals in the left-right width direction to the left and right slide bars 42 and the rear surface of the upper frame 21 of the back frame 20. It is mainly composed of a slide cylinder 44 which is fixed via a mounting bracket 43 and is supported so as to be vertically movable while being inserted into the slide bar 42.

In the above configuration, as shown in FIGS. 8A and 8B, in the vehicle seat S, the upper rail 32 is moved to the front of the seat with respect to the lower rail 31 by using the slide rail device 30 from the normal position of FIG. 8A. The cushion frame 10 slides forward, and the back frame 20 connected to the cushion frame 10 by a link 16 is pulled forward.
Then, in the back frame 20, the upper frame 21 slides downward and the lower frame 22 slides downward to the upper frame 21 by moving the slide cylinder 44 downward with respect to the slide bar 42 by using the slide bar device 40. On the other hand, it rotates and moves to the front of the seat.
As a result, the vehicle seat S moves to the reclining position shown in FIG. 8B.

<Belt assist device>
Next, a specific configuration of the belt assist device 50 will be described with reference to FIGS. 9 and 10.
As shown in FIG. 9, the belt assist device 50 is an assist device capable of pushing out at least a part of the seat belt 4 forward and upward.
The belt assist device 50 is attached via a mounting wire 25 provided on the outer surface of the back frame 20 shown in FIG. 4, and has a vertically long mounting plate 51 and a storage opening formed at the upper end of the mounting plate 51. A concave storage plate 52 fitted into the portion 51a, a concave support plate 53 attached to the front surface of the storage plate 52, and a movable member 55 attached to the inside of the accommodation of the support plate 53 via a rotation shaft 54. The movable member 55 is mainly composed of an auxiliary spring 56 for urging the movable member 55 toward the protruding position side shown in FIG.

The belt assist device 50 rotates between a storage position in which the movable member 55 is stored inside the storage plate 52 of the seat back 2 and a protruding position in which the movable member 55 is projected forward from the seat back 2 and a part of the seat belt 4 is pushed out. It is a device to move.
When the movable member 55 is in the storage position shown in FIG. 1, the belt assist device 50 is integrally stored without protruding from the outer surface of the seat back 2, and the movable member 55 is integrally stored in the protruding position shown in FIG. It is configured to partially project from the outer surface of the seat back 2 and push a part of the seat belt 4 forward and upward when the seat belt is in the air.

The belt assist device 50 connects a drive motor (not shown) stored on the rear surface of the storage plate 52, the drive motor, and the movable member 55, and corresponds to the operation of the drive motor in order to rotate the movable member 55. It is equipped with a drive shaft (not shown) that moves up and down.
Further, the belt assist device 50 has an ECU as a control means, a drive circuit that supplies drive power to the drive motor, a vehicle body power supply connected to the drive motor via the drive circuit, and a seated person. It is desirable that the seating sensor for detecting and the buckle sensor for detecting that the tongue plate of the seatbelt 4 is connected to the buckle are connected.
Then, the ECU may control the operation of the drive motor, that is, the operation of the movable member 55, based on the signals input from each of these sensors.
For example, when the ECU receives the ON signal from the seating sensor but does not receive the ON signal from the buckle sensor, the ECU supplies drive power to the drive motor and moves the movable member 55 to the protruding position to move the seat belt. It is good to push out 4.
Further, for example, when the on signal is received from the seating sensor and the buckle sensor, it is preferable to supply the driving power to the driving motor and return the movable member 55 from the protruding position to the storage position.

<Side support device>
Next, a specific configuration of the side support device 70 will be described with reference to FIGS. 11 to 25.
The side support device 70 is a device that supports the cushion side portion 1c so as to be movable in response to the occupant's disembarkation operation, and as shown in FIGS. 12A and 12B, the cushion side portion 1c and the cushion central portion 1d. It is arranged all over the inside.
As shown in FIG. 11, the side support device 70 includes a plate-shaped side plate 71 that supports the cushion side portion 1c from below, a vertical cross-sectional U-shaped side bracket 72 that is attached to the bottom surface of the side plate 71, and a side plate. A side base 74 that supports the 71 and the side bracket 72 via a rotation shaft 73 so as to be rotatable between a protruding position and a retracted position, and a central portion connected to the side base 74 and stretched outward from the side base 74. It is mainly composed of a mounting wire 76 extending so as to come out.
The mounting wire 76 is inserted into a mounting hole (not shown) provided inside the cushion material 1a, and is a member for mounting the side support device 70 inside the cushion side portion 1c.

As shown in FIGS. 2 and 11, the side plate 71 is made of a metal plate and is arranged in the central portion of the cushion side portion 1c in the front-rear direction of the seat.
On the upper surface of the side plate 71, a pair of rectangular through holes 71a penetrating in the vertical direction and both end portions in the front-rear direction of the seat at the outer edge portion of the through holes 71a are formed by bending downward on the outer portion in the seat width direction. A side wall portion 71b is provided.
A second lock release lever 94 is arranged in the portion where the through hole 71a is formed, and the second lock release lever 94 can rotate on the pair of side wall portions 71b via the rotation shaft 95. It is attached to.

As shown in FIG. 11, the side bracket 72 is formed of a U-shaped body that is long in the seat width direction, and has an upper wall portion 72a for attaching the side plate 71 and both end portions of the upper wall portion 72a in the seat front-rear direction. It is mainly composed of a pair of side wall portions 72b that bend downward and extend from the side wall portion 72b.
The pair of side wall portions 72b are attached to the side wall portions 74b of the side base 74 made of a U-shaped body via a rotation shaft 73 extending in the front-rear direction of the seat.
Further, as shown in FIG. 11, a locking device 80 and components of the unlocking device 90 are attached to the inner surface of the side wall portion 72b on the rear side.

The side base 74 is mainly composed of a bottom wall portion 74a mounted on the support frame 14 and a pair of side wall portions 74b extending upward from both end portions of the bottom wall portion 74a in the front-rear direction of the seat. There is.
Further, a second side base 75 is attached to the inside of the cushion side portion 1c via a mounting wire (not shown) at a position at a predetermined distance behind the side base 74. The first lock release lever 91 is attached to the second side base 75 so as to be rotatable via a rotation shaft 92 extending in the front-rear direction of the seat.

The lock device 80 is a device that locks the side plate 71 and the side bracket 72 at the protruding positions, and is arranged on the inner surface of the side wall portion 72b on the rear side of the seat in the side bracket 72 as shown in FIGS. 11 and 19. ing.
The lock release device 90 is a device for releasing the locked state of the lock device 80, and includes a first lock release lever 91 and a second lock release lever 94 as shown in FIG.
The first lock release lever 91 is a member that rotates between the lock position shown in FIG. 11 about the rotation shaft 92 and the lock release position moved below the lock position, and is a member that rotates between the first transmission cable 93. Is urged to the lock position by.
The second lock release lever 94 is a member that rotates between the lock position shown in FIG. 11 about the rotation shaft 95 and the lock release position moved below the lock position, and is a member that rotates between the second transmission cable 96. Is urged to the lock position by.

The first lock release lever 91 is composed of a substantially L-shaped plate body, is located inside the side plate 71 in the seat width direction, and has a first extending portion 91a extending in the front-rear direction of the seat and a side plate 71. It has a second extending portion 91b, which is located on the rear side of the seat and extends in the seat width direction. Then, as shown in FIG. 5, the slide rail device 30 is arranged so as to avoid a position where the slide rail device 30 and the slide rail device 30 are vertically overlapped with each other. Similarly, the side plate 71 is also arranged so as to avoid a position where it vertically overlaps with the slide rail device 30.
The second lock release lever 94 is composed of a substantially rectangular plate body, is arranged outside the seat width direction of the first lock release lever 91, and is arranged on the front side of the seat with respect to the first lock release lever 91. ing.
The details of the lock device 80 and the unlock device 90 will be described later.

<< Operation of side support device >>
Next, the operation of the side support device 70 will be described with reference to FIGS. 12A, B to 18A, and B.
First, as shown in FIG. 12A, before the occupant gets on board, the side support device 70 is in a state of supporting the cushion side portion 1c at the protruding position as shown in FIG. 12B.
Further, the lock device 80 locks the cushion side portion 1c at the protruding position, and the first lock release lever 91 and the second lock release lever 94 of the lock release device 90 are respectively urged to the lock position. ing.

Then, as shown in FIG. 13A, when the occupant sits down on the cushion side portion 1c to get on, the second lock release lever 94 is locked from the lock position by applying a predetermined seating load as shown in FIG. 13B. Rotate to the release position.
Here, the lock state of the lock device 80 is not released only by moving only the second lock release lever 94 to the lock release position.

Then, as shown in FIG. 14A, when the occupant sits down on the cushion side portion 1c and the cushion central portion 1d to get on the vehicle, the second unlock lever 94 is positioned at the unlocked position as shown in FIG. 14B. The first lock release lever 91 rotates and moves from the lock position to the lock release position when a predetermined seating load is applied.
Here, when the second lock release lever 94 and the first lock release lever 91 are moved to the unlocked positions in this order, the locked state of the lock device 80 is not released.

Then, when the occupant is seated as shown in FIG. 15A, the second lock release lever 94 returns from the lock release position to the lock position by being released from the predetermined seating load as shown in FIG. 15B. Further, the first lock release lever 91 is in a state of being positioned at the lock release position.
At this time, since the cushion side portion 1c is supported at the protruding position by the side support device 70, the holdability of the seated occupant can be ensured.

Then, as shown in FIG. 16A, when the occupant tries to get off by moving his / her body toward the door side, as shown in FIG. 16B, the second unlock lever 91 is in the unlocked position, and the second unlock lever is released. The 94 rotates and moves from the locked position to the unlocked position when a predetermined seating load is applied.
Here, by moving the first lock release lever 91 and the second lock release lever 94 to the lock release position in this order, the lock state of the lock device 80 is released.

Then, as shown in FIG. 17A, when the occupant tries to get off by moving his / her body further toward the door side, as shown in FIG. 17B, a seating load is further applied to the cushion side portion 1c, so that the cushion side portion 1c becomes a side plate. It rotates and moves from the protruding position to the retracted position together with 71.
As a result, it is possible to reduce the burden of getting over the cushion side portion 1c of the occupant who is getting off.

Finally, when the occupant finishes getting off as shown in FIG. 18A, the first lock release lever 91 and the second lock release lever 94 return to the lock position again as shown in FIG. 18B, and the lock device 80 is on the cushion side. It returns to the state where the part 1c is locked at the protruding position.
Through the series of operations described above, the side support device 70 can assist the occupant's disembarkation operation while stably ensuring the holdability of the seated occupant. Further, since the cushion side portion 1c is not intentionally tilted when the occupant is riding, consideration is given to ensuring that the occupant can get on the vehicle.
In the side support device 70, it is desirable to control the lock release device 90 so that the lock release device 90 cannot release the locked state when the belt assist device 50 pushes out a part of the seat belt 4 as shown in FIG.

<< Locking device, unlocking device >>
Next, a specific configuration of the lock device 80 and the unlock device 90 will be described with reference to FIGS. 19 to 25.
As shown in FIG. 19, the lock device 80 uses a lock lever 81 attached to the inner surface of the side bracket 72 so as to be rotatable via a support shaft 82, and a fixing bolt 84 on the inner surface of the side base 74. It is mainly composed of a locked lever 83 to be fixed and the locked lever 83.
The lock lever 81 and the locked lever 83 are arranged at positions facing each other.

The lock device 80 locks the side plate 71 (side bracket 72) in the protruding position when the lock lever 81 is in the engagement position shown in FIG. 19 where the lock lever 81 engages with the locked lever 83. That is, the cushion side portion 1c is locked at the protruding position.
Further, the lock device 80 releases the locked state of the side plate 71 (side bracket 72) when the lock lever 81 is in the release position shown in FIG. 23 when the lock lever 81 is released from the locked lever 83. That is, the locked state of the cushion side portion 1c is released.

The lock lever 81 is a member that rotates between the engagement position shown in FIG. 19 and the disengagement position moved to the front of the seat from the engagement position with the support shaft 82 extending in the seat width direction as the center. It is urged in the direction of arrow A shown in FIG. 19 by an urging spring (not shown). That is, it is urged from the engagement position side to the disengagement position side.
The lock lever 81 is provided with an engaging protrusion 81a that engages with the engaging groove 83a provided in the locked lever 83 and a relay lever 120 that is arranged on the opposite side of the engaging protrusion 81a in the front-rear direction of the seat. A held portion 81b to be held and a through protrusion 81c protruding inward in the seat width direction and movably arranged inside a through hole 110b provided in the first transmission lever 100 described later are formed. There is.
The lock lever 81 is usually held by the relay lever 120 and is arranged at an engaging position where the engaging projection 81a is engaged with the engaging groove 83a.

As shown in FIG. 19, the unlocking device 90 has a first transmission lever 100 rotatably attached to the inner surface of the side bracket 72 via the first connecting shaft 101, and a second connection to the inner surface of the side bracket 72. A second transmission lever 110 rotatably attached via the shaft 111 and a relay lever 120 attached between the side bracket 72 and the first transmission lever 100 and rotatable via the first connecting shaft 101. Further prepared.
When the first transmission lever 100 and the second transmission lever 110 move from the reference position shown in FIG. 19 to the transmission position shown in FIG. 23, the lock release device 90 sets the lock lever 81 to FIG. 19 via the relay lever 120. It can be moved from the engagement position shown to the disengagement position shown in FIG.

The first transmission lever 100 has a reference position shown in FIG. 19 centered on a first connecting shaft 101 extending along the seat width direction, an intermediate position shown in FIG. 22 moved below the reference position, and a position higher than the intermediate position. It is a member that rotates to and from the transmission position shown in FIG. 23 that has moved further downward.
The first transmission lever 100 is urged in the direction of arrow B shown in FIG. 19 by an urging spring (not shown). That is, it is urged from the transmission position side to the reference position side.
The first transmission lever 100 is arranged with a mounting hole 110a for mounting the cable mounting end 93a of the first transmission cable 93 and a lock lever on the side opposite to the mounting hole 110a with respect to the first connecting shaft 101. A through hole 110b for penetrating the through protrusion 81c of the 81 and a fitting hole for fitting the fitting protrusion 120a provided on the relay lever 120 are formed, respectively.

The first transmission lever 100 is usually urged in the direction of arrow B by an urging spring (not shown) and arranged at a reference position. At this time, the outer edge portion of the through hole 110b and the through protrusion 81c of the lock lever 81 are arranged at positions where they do not abut against each other.
Then, the first transmission lever 100 is towed by the first transmission cable 93 with the rotational operation of the first lock release lever 91, so that the first transmission lever 100 rotates and moves from the reference position to the intermediate position. At this time, the outer edge portion of the through hole 110b comes into contact with the through protrusion 81c, so that the first transmission lever 100 is stably stopped at the intermediate position. That is, the penetrating protrusion 81c serves as a stopper.
Then, the first transmission lever 100 further moves from the intermediate position to the transmission position via the relay lever 120 as the second transmission lever 110 rotates. At this time, the outer edge portion of the mounting hole 110a comes into contact with the cable mounting end portion 93a, so that the first transmission lever 100 is stably stopped at the transmission position. That is, the cable mounting end 93a serves as a stopper.

The second transmission lever 110 rotates about the second connecting shaft 111 extending along the seat width direction between the reference position shown in FIG. 19 and the transmission position shown in FIG. 23 moved above the reference position. It is a member.
The second transmission lever 110 is urged in the direction of arrow C shown in FIG. 19 by an urging spring (not shown). That is, it is urged from the transmission position side to the reference position side.
The second transmission lever 110 is rotatably attached via a connecting pin 113 extending in the front-rear direction of the seat, and is provided with a pressing lever 112 for pressing the relay lever 120.
Further, the second transmission lever 110 is provided with a mounting hole 110a for mounting the cable mounting end 96a of the second transmission cable 96 and a pressing lever arranged on the side opposite to the mounting hole 110a with respect to the second connecting shaft 111. Through holes 110b for penetrating the through protrusion 112a of 112 are formed respectively.

The second transmission lever 110 is usually urged in the direction of arrow C by an urging spring (not shown) and arranged at a reference position. Further, the pressing lever 112 is also urged in the direction of arrow D by an urging spring (not shown) and is arranged at the reference position shown in FIG.
At this time, the through protrusion 112a of the pressing lever 112 and the outer edge portion of the through hole 110b are arranged at positions where they come into contact with each other.
Then, the second transmission lever 110 is towed by the second transmission cable 96 as the second lock release lever 94 rotates, so that the second transmission lever 110 rotates and moves from the reference position to the transmission position. Further, the pressing lever 112 also rotates and moves from the reference position to the pressing position shown in FIG.
At this time, the pressing portion 112b of the pressing lever 112 pushes and moves the pressing receiving portion 120b provided on the relay lever 120, so that the relay lever 120 rotates and moves together with the first lock release lever 91.

The relay lever 120 is shown in the holding position shown in FIG. 19 centered on the first connecting shaft 101, the intermediate position shown in FIG. 22 moved above the holding position, and FIG. 23 moved further above the intermediate position. It is a member that rotates between the detached position and the detached position.
The relay lever 120 is connected to the first transmission lever 100 via the first connecting shaft 101 and the fitting projection 120a, and is urged in the same arrow B direction as the urging direction of the first transmission lever 100. That is, it is urged from the detached position side to the holding position side.
The relay lever 120 has a fitting protrusion 120a, a pressing receiving portion 120b arranged on the opposite side of the fitting protrusion 120a with respect to the first connecting shaft 101, and a fitting protrusion 120a with respect to the first connecting shaft 101. A holding portion 120c, which is arranged on the same side as the lock lever 81 and holds the held portion 81b of the lock lever 81, is formed.

The relay lever 120 is usually urged in the direction of arrow B and arranged at the holding position. Here, the holding position is a position where the holding portion 120c holds the lock lever 81 at the engaging position.
Then, the relay lever 120 rotates and moves from the holding position to the intermediate position as the first transmission lever 100 rotates. At this time, the holding portion 120c maintains the state in which the lock lever 81 is held at the engaging position.
Then, the relay lever 120 rotates and moves from the intermediate position to the detached position with the rotational operation of the second transmission lever 110 (pressing lever 112). Here, the disengagement position is a position where the holding portion 120c is disengaged from the state where the lock lever 81 is held at the engaging position.
As a result, the lock lever 81 is urged in the direction of arrow A and moves from the engaged position to the disengaged position. That is, the locked state of the lock device 80 is released.

<< Operation of lock device and unlock device >>
Next, specific operations of the lock device 80 and the unlock device 90 will be described with reference to FIGS. 12A, B to 18A, B, and FIGS. 19 to 25.
First, as shown in FIG. 12A, before the occupant gets on board, as shown in FIG. 19, the lock lever 81 is arranged at the engaging position engaged with the locked lever 83.
Further, the first transmission lever 100 and the second transmission lever 110 (pressing lever 112) are arranged at the reference positions, and the relay lever 120 is arranged at the holding position.
That is, as shown in FIG. 12B, the lock device 80 is in a state where the cushion side portion 1c is locked at the protruding position.

Then, as shown in FIG. 13A, when the occupant sits down on the cushion side portion 1c to get on the vehicle, the second transmission lever 110 (pressing lever 112) is moved by the second lock release lever 94 as shown in FIG. 20. It is towed and rotates from the reference position to the transmission position.
At this time, the pressing lever 112 does not push the relay lever 120 and swings.
As a result, the lock lever 81 remains in the engaged position, and the lock state of the lock device 80 is not released.

Then, when the occupant sits down on the cushion side portion 1c and the cushion center portion 1d to get on as shown in FIG. 14A, the second transmission lever 110 (pressing lever 112) is positioned at the transmission position as shown in FIG. 21. In this state, the first transmission lever 100 is pulled by the first lock release lever 91 and rotationally moves from the reference position to the intermediate position.
Further, the relay lever 120 moves from the holding position to the intermediate position by rotating together with the first transmission lever 100.
At this time, the pressing lever 112 and the relay lever 120 are in a state of swinging each other.
As a result, the lock lever 81 remains in the engaged position, and the lock state of the lock device 80 is not released.

Then, when the occupant is seated as shown in FIG. 15A, the second transmission lever 110 (pressing lever 112) is released from the traction operation of the second lock release lever 94 as shown in FIG. 22. Then, it returns from the transmission position to the reference position again.
At this time, the pressing lever 112 rotates about the connecting pin 113 with respect to the second transmission lever 110, so that the pressing lever 112 swings over the relay lever 120 and returns to the reference position.
As a result, the lock lever 81 remains in the engaged position, and the lock state of the lock device 80 is not released.

Then, as shown in FIG. 16A, when the occupant tries to get off by moving his / her body toward the door side, as shown in FIG. 23, the second transmission lever 110 (pressing) with the first transmission lever 100 located at the intermediate position. The lever 112) is pulled by the second unlock lever 94 and rotationally moves from the reference position to the transmission position.
Further, the relay lever 120 is pushed and moved by the pressing lever 112 to rotate and move from the intermediate position to the detaching position.
As a result, the lock lever 81 is disengaged from the state held in the engaging position by the relay lever 120, and rotationally moves from the engaging position to the disengaging position. That is, the locked state of the locking device 80 is released.

Then, as shown in FIG. 17A, when the occupant tries to get off by moving his / her body further toward the door side, as shown in FIG. 24, the side plate 71 (side bracket 72) has a side base due to the seating load of the occupant. It rotates and moves from the protruding position to the retracted position with respect to 74.
As a result, as shown in FIG. 17A, the cushion side portion 1c rotates and moves from the protruding position to the retracted position.

Finally, when the occupant finishes getting off as shown in FIG. 18A, the first transmission lever 100 and the second transmission lever 110 (pressing lever 112) return to the reference position again and the relay lever 120 holds the relay lever 120 as shown in FIG. 25. Return to position.
Further, the lock lever 81 returns to the engagement position engaged with the locked lever 83 again.
By the above series of operations, the lock device 80 and the unlock device 90 switch between the locked state and the unlocked state.

<Vehicle unit>
Next, the vehicle unit of this embodiment will be described with reference to FIGS. 26 to 36.
As shown in FIGS. 26 and 27, the vehicle unit U includes a vehicle seat S having a seat switching device (slide rail device 30 and slide bar device 40), a belt assist device 50, and a side support device 70. It is mainly composed of a lighting device 130 attached to an interior portion of the vehicle, and a control device 140 that controls light emission by the lighting device 130 in response to a predetermined operation of the vehicle seat S or the vehicle.

The lighting device 130 is a device for notifying with a predetermined light emitting pattern when the vehicle seat S or the vehicle switches to a predetermined state.
The lighting device 130 includes a light source body (not shown) that emits light and a light guide body that guides the light emitted from the light source body, and the vehicle body includes a drive circuit 141 described later corresponding to a harness. It is connected to the power supply 142.
The light source body is an LED light source unit, and is arranged in a direction in which light can be emitted toward the light guide body. The light guide is a light guide plate made of a polycarbonate resin, and is designed to introduce light from a light receiving surface on the light source side and guide the light toward an exposed portion while appropriately reflecting the introduced light. ..

As shown in FIGS. 26 and 27, the lighting device 130 includes a front instrument panel lighting 131 mounted on the dashboard and a front door lighting 132 mounted on the inner surface of the pair of front doors in the interior portion of the vehicle. And the rear door lighting 133 mounted on the inner surface of the pair of rear doors, the rear armrest lighting 134 mounted on the pair of rear armrests, and the rear footsteps mounted on the vehicle body floor under the foot of the rear seat. It is mainly composed of lighting 135 and.
Of the lighting 132 to 135, the rear armrest lighting 134 preferably adopts a light guide plate made of a plated decorative plate in order to enhance the design.

In the lighting device 130, each of the lights 131 to 135 emits light according to a plurality of light emission patterns.
Specifically, the lighting device 130 has a standby mode shown in FIG. 26, a pick-up mode shown in FIGS. 28A to 28C, a relax mode shown in FIGS. 30A and 30B, a return mode shown in FIGS. 31A and 31A, and a return mode shown in FIGS. 32A. It is possible to emit light by five light emission patterns with the send-off mode shown in ~ C.
The standby mode shown in FIG. 26 is a light emission pattern used when, for example, the vehicle door is unlocked from the outside before the occupant gets on board, or when the occupant is seated, and each lighting 132 to This is a mode in which 135 is always lit.
In the standby mode, it is desirable to reduce the brightness of each of the lights 131 to 135 slightly as compared with the other modes to make the ambient lighting. Further, it is desirable to further reduce the brightness when driving the vehicle in the standby mode.

The pick-up mode shown in FIGS. 28A to 28C is a light emission pattern used when the occupant opens the vehicle door to get on the vehicle. More specifically, the lights of the front door lighting 132 and the rear door lighting 133 are lit so as to extend from the rear of the seat toward the front of the seat, and the light of the front instrument panel lighting 131 is lit from the outside to the inside in the seat width direction. In this mode, the lights are lit so as to extend toward the rear armrest, the light of the rear armrest lighting 134 is faded, and the rear foot lighting 135 is always lit.
In the pick-up mode, the light of the rear armrest lighting 134 blinks, which is a substitute for the light of the courtesy lamp, which serves as a warning light to the following vehicle, for example.

The relax mode shown in FIGS. 30A and 30B is a light emission pattern used when the vehicle seat S moves from the normal position to the reclining position by the seat switching device. More specifically, the lights of each of the lights 131 to 133 are lit so as to extend from the central portion in the front-rear direction or the seat width direction toward both outer portions, and the rear armrest lighting 134 and the rear foot lighting 135. Is a mode in which is always lit.
The return mode shown in FIGS. 31A and 31B is a light emitting pattern used when the vehicle seat S returns from the reclining position to the normal position by the seat switching device. More specifically, the lights of each of the lights 131 to 133 are lit so as to extend from both outer portions in the front-rear direction or the width direction of the seat toward the central portion, and the rear armrest lighting 134 and the rear foot lighting. This is a mode in which 135 is always lit.
In the relax mode and the return mode, it is desirable to increase the brightness of each of the lights 131 to 133 as compared with the other modes. On the other hand, it is desirable that the brightness of the rear armrest lighting 134 and the rear foot lighting 135 is slightly lower than those of the respective lightings 131 to 133.

The send-off mode shown in FIGS. 32A to 32C is a light emission pattern used when the occupant opens the vehicle door and gets off the vehicle. More specifically, the lights of the front door lighting 132 and the rear door lighting 133 are lit so as to extend from the front of the seat toward the rear of the seat, and the light of the front instrument panel lighting 131 is lit from the inside to the outside in the seat width direction. In this mode, the lights are lit so as to extend toward the rear armrest, the light of the rear armrest lighting 134 is faded, and the rear foot lighting 135 is always lit.

Next, the control means of the vehicle unit U will be described.
As shown in FIG. 27, the vehicle unit U includes a control device 140 that controls various devices 30, 40, 50, 70, and 130, a drive circuit 141 that supplies drive power to the various devices, and various devices and drive circuits. The vehicle body power supply 142 connected via 141, the door release sensor 143 that detects that the vehicle door is unlocked, the door open / close sensor 144 that detects that the vehicle door is open, and the seated person From the seating sensor 145 that detects that the vehicle is seated, the buckle sensor 146 that detects that the tongue plate of the seat belt 4 is connected to the buckle, and the seat switching switch 147 that is the operation unit of the seat switching device. It is mainly composed.
The door release sensor 143 and the door open / close sensor 144 are attached around the door knob of the vehicle body door, the seating sensor 145 is attached to the seating surface of the seat cushion 1, the buckle sensor 146 is attached to the buckle, and the seat changeover switch 147 is a vehicle. It is attached to the console part of the seat S.

The control device 140 is an ECU (Electronic Control Unit) that is a central function for comprehensively executing electric control.
The control device 140 controls the drive power supplied by the drive circuit 141 to various devices based on the signals input from the sensors and switches 143 to 146, and controls, for example, the current of an electromagnetic clutch (not shown) to be turned on or off. By doing so, the operation of various devices is controlled.
The door release sensor 143 is a sensor that outputs an on signal to the control device 140 when the vehicle door is unlocked and turns off the output when the vehicle door is locked.
The door open / close sensor 144 is a sensor that outputs an on signal to the control device 140 when the vehicle door is open and turns off the output when the vehicle door is closed.
The seating sensor 145 is a sensor that outputs an on signal to the control device 140 when the occupant is seated and turns off the output when the occupant is not seated.
The buckle sensor 146 is a sensor that outputs an on signal toward the control device 140 when the tongue plate of the seatbelt 4 is connected to the buckle, and turns off the output when the tongue plate of the seatbelt 4 is not connected to the buckle.
The seat changeover switch 147 is a position holding type switch that outputs an on signal to the control device 140 when the occupant presses the push button once and turns off the output when the push button is pressed again.

For example, when the control device 140 receives an on signal from the door release sensor 143, the seating sensor 145, the buckle sensor 146, and the seat changeover switch 147, the control device 140 supplies drive power to the seat changeover device as shown in FIGS. 30A and 30B. It is supplied and controlled to move the vehicle seat S from the normal position to the reclining position, and the driving power is supplied to the lighting device 130 to control each lighting to emit light in the relax mode.
Hereinafter, the control of the control device 140 will be described in detail based on the main flow charts of FIGS. 33A and 33B and the subflow charts of FIGS. 34A and 34A and B to 36.

<< Control flow of vehicle unit >>
The processing of the flowcharts of FIGS. 33A and 33B is executed by the control device 140.
When the process starts, first, in step 01 (hereinafter referred to as ST01), it is determined whether the door release sensor 143 is turned on (whether an ON signal is output).
When the door release sensor 143 is turned on (ST01: Yes), since the occupant is trying to unlock the vehicle door and get on the vehicle, the process proceeds to ST02 and the lighting device 130 is illuminated in the standby mode shown in FIG. 26.
On the other hand, when the door release sensor 143 is not turned on (ST01: No), the process of FIGS. 33A and 33B is terminated because the occupant is not trying to get on the vehicle.

After the standby mode lighting is turned on in ST02, the process proceeds to ST03, and it is determined whether the door open / close sensor 144 is turned on.
When the door open / close sensor 144 is turned on (ST03: Yes), since the occupant is trying to get on the vehicle by opening the vehicle door, the process proceeds to ST04 and the lighting device 130 is illuminated in the pick-up mode shown in FIGS. 28A to 28C.
On the other hand, when the door open / close sensor 144 is not turned on (ST03: No), the process further proceeds to ST05, and it is determined whether or not a predetermined time has elapsed since the lighting was turned on.
If the specified time has already passed (ST05: Yes), assuming that the occupant has stopped trying to get on the vehicle, proceed to ST21 and forcibly turn off the door release sensor 143 to lock the vehicle door. Then proceed to ST19. On the other hand, if the predetermined time has not passed (ST05: No), it is assumed that the occupant is about to board the vehicle, and the vehicle returns to ST03.

After turning on the lighting in the pick-up mode in ST04, the process proceeds to ST06 to determine whether the door open / close sensor 144 has been turned off.
When the door open / close sensor 144 is turned off (ST06: Yes), it is assumed that the occupant has closed the vehicle door, the vehicle proceeds to ST07, and it is determined whether the seating sensor 145 is turned on.
On the other hand, when the door open / close sensor 144 is not turned off (ST06: No), the vehicle door remains open, so the process returns to ST06.

When the seating sensor 145 is turned on in ST07 (ST07: Yes), it is assumed that the occupant is seated on the vehicle seat S, the vehicle proceeds to ST08, and control 1 of the belt assist device 50 is executed. The details of the control will be described later.
On the other hand, when the seating sensor 145 is not turned on (ST07: No), the process further proceeds to ST09, and it is determined whether or not a predetermined time has elapsed from the time when the door is closed.
If the specified time has already passed (ST09: Yes), assuming that the occupant has stopped boarding and closed the vehicle door, proceed to ST21 and forcibly turn off the door release sensor 143 to turn off the vehicle door. Lock and proceed to ST19. On the other hand, if the predetermined time has not passed (ST09: No), it is assumed that the occupant has boarded and is about to sit down, and the vehicle returns to ST07.

After executing the control 1 of the belt assist device 50 in ST08, the process proceeds to ST10 and the control 1 of the seat switching device is executed. The details of the control will be described later.
After executing the control of the seat switching device in ST10, the process proceeds to ST11, and it is determined whether the door open / close sensor 144 is turned on.
When the door open / close sensor 144 is turned on (ST11: Yes), since the occupant is trying to get off by opening the vehicle door, the vehicle proceeds to ST12 and the lighting device 130 is illuminated in the send-off mode shown in FIGS. 32A to 32C.
On the other hand, when the door open / close sensor 144 is not turned on (ST11: No), it is assumed that the vehicle door is still closed and the occupant is still in the vehicle, and the vehicle returns to ST10.

After the lighting in the send-off mode is turned on in ST12, the process proceeds to ST13 to control the side support device 70. The details of the control will be described later.
After executing the control of the side support device 70 in ST13, the process proceeds to ST14, and it is determined whether the door open / close sensor 144 is turned off.
When the door open / close sensor 144 is turned off (ST14: Yes), it is assumed that the occupant has disembarked and the door is closed, the process proceeds to ST15, and the lighting device 130 is illuminated in the standby mode shown in FIG. 26.
On the other hand, when the door open / close sensor 144 is not turned off (ST14: No), it is assumed that the occupant is getting off and the vehicle returns to ST14.

After the standby mode lighting is turned on in ST15, the process proceeds to ST16, and control 2 of the belt assist device 50 is executed. Further, the process proceeds to ST17, and the control 2 of the seat switching device is executed.
Details of these controls will be described later.

After controlling the belt assist device 50 and the seat switching device in ST16 and ST17, the process proceeds to ST18 to determine whether the door release sensor 143 is turned off.
When the door release sensor 143 is turned off (ST18: Yes), since the occupant is about to roll the vehicle door away from the vehicle, the process proceeds to ST19 and the lighting device 130 is turned off.
On the other hand, when the door release sensor 143 is not turned off (ST018: No), the process further proceeds to ST20, and it is determined whether a predetermined time has elapsed from the time when the door is closed.
If the predetermined time has already passed (ST20: Yes), it is assumed that the occupant has forgotten to lock the vehicle door, and the vehicle proceeds to ST21 to forcibly turn off the door release sensor 143 to lock the vehicle door. Above, proceed to ST19. On the other hand, if the predetermined time has not elapsed (ST20: No), it is assumed that the occupant is about to lock the vehicle door, and the vehicle returns to ST18.
The processing of FIGS. 33A and 33B is completed through the above ST01 to ST21.

Through the above series of processing flows, the vehicle unit U provides total support from the riding operation to the seatbelt wearing, the seat switching operation, and the disembarking operation while lighting the occupant in a predetermined light emission pattern. Can be (guided).

A seating sensor is also attached to the front seat located in front of the vehicle seat S, which is the rear seat, and a door opening / closing sensor is also attached to the front door. However, the seating sensor and the door opening / closing sensor are turned on. Even if it is turned off, it is particularly desirable to prevent the above series of processing flows from proceeding.
Desirably, when a person gets on and sits on the left seat of the rear seat and gets off, the above series of processing flows are executed, while a person gets on and sits on both seats of the front seat and the right seat of the rear seat. When getting off the train, it is preferable that the lighting device 130 always emits light in the standby mode.

In order to control the seat switching device in ST10, it is necessary that the door open / close sensor 144 is turned off in ST06 and the seating sensor 145 is turned on in ST07. For example, the vehicle door remains open. Even if there is, it may be possible to control the seat switching device as long as the occupant is seated.
By doing so, for example, when the vehicle door is open and the vehicle is stopped without running, the seat can be switched when the occupant wants to take a break while sitting.

<< Control flow of belt assist device >>
Next, control 1 of the belt assist device of ST08 will be described in detail with reference to FIG. 34A.
When the processing of the flowchart of FIG. 34A starts, first, in ST08-1, since the occupant has finished riding in the vehicle and is seated, the pick-up mode shown in FIGS. 28A to 28C is switched to the standby mode shown in FIGS. 29A and 29A. Turn on the lights.

After the standby mode lighting was turned on in ST08-1, the vehicle proceeded to ST08-2, and the occupant was seated on the vehicle seat S, but the seat belt 4 was not fastened yet, and the drive power was supplied to the drive motor. , The movable member 55 is rotated from the storage position to the protruding position shown in FIG. 29A. As a result, the seat belt 4 is pushed forward and upward of the seat.
When the movable member 55 moves to the protruding position, it is desirable to stop the rotational operation of the drive motor and put it in the hold state.

After the operation of the movable member 55 is started in ST08-2, the process proceeds to ST08-3 to determine whether the buckle sensor 146 is turned on.
When the buckle sensor 146 is turned on (ST08-3: Yes), assuming that the occupant wears the seatbelt 4, the vehicle proceeds to ST08-4 and the drive motor is rotated in the reverse direction to move the movable member 55 in FIG. 29A. The reverse rotation operation is performed from the protruding position to the storage position shown in FIG. 29B.
On the other hand, when the buckle sensor 146 is not turned on (ST08-3: No), the process further proceeds to ST08-5, and it is determined whether a predetermined time has elapsed from the start of the rotational operation of the movable member 55.
If the predetermined time has already passed (ST08-5: Yes), for example, assuming that the vehicle has stopped without running and the occupant is taking a break while sitting, the process proceeds to ST08-4 and the movable member 55. Reverse rotation to the storage position. On the other hand, if the predetermined time has not elapsed (ST08-5: No), it is assumed that the occupant is about to fasten the seatbelt 4, and the process returns to ST08-3.

After starting the reverse operation of the movable member 55 in ST08-4, the process proceeds to ST08-6, and it is determined whether the movable member 55 has moved to the storage position.
When the movable member 55 moves to the storage position (ST08-6: Yes), the process proceeds to ST08-7 and the supply of the drive power to the drive motor is stopped. As a result, the movable member 55 is held in the stored position.
On the other hand, when the movable member 55 has not moved to the storage position (ST08-6: No), the process returns to ST08-6.
The process of FIG. 34A is completed from ST08-1 to ST08-7, and the process proceeds to ST10 of FIG. 33B.

According to the above processing flow, the belt assist device 50 can move a part of the seatbelt 4 to a position easily accessible by the occupant before the seated occupant wears the seatbelt 4, and the occupant can move the part of the seatbelt 4 to the seat. After the belt 4 is attached, it is integrally stored inside the vehicle seat S so as not to get in the way.

In ST08-5, if the seating sensor 145 is turned on and the buckle sensor 146 is not turned on even after a predetermined time has elapsed, the seated occupant is urged to fasten the seatbelt 4. (For example, blinking lighting of the lighting device 130, etc.) is desirable.
More preferably, the notification should be given only when the vehicle is driving.

When the belt assist device 50 is operating, it is desirable that the control device 140 controls the side support device 70 so that the side support device 70 cannot operate.

Next, control 2 of the belt assist device of ST16 will be described in detail with reference to FIG. 34B.
When the processing of the flowchart of FIG. 34B is started, first, in ST16-1, it is determined whether or not the movable member 55 is housed in a protruding state.
When the movable member 55 remains projected (ST16-1: Yes), the process proceeds to ST16-2, and the movable member 55 is rotated in the reverse direction to the storage position shown in FIG. 29B.
On the other hand, when the movable member 55 does not remain protruding (ST16-1: No), the process of FIG. 34B ends.

After starting the reverse operation of the movable member 55 in ST16-2, the process proceeds to ST16-3, and it is determined whether the movable member 55 has moved to the storage position.
When the movable member 55 moves to the storage position (ST16-3: Yes), the process proceeds to ST16-4 and the supply of the drive power to the drive motor is stopped. As a result, the movable member 55 is held in the stored position.
On the other hand, when the movable member 55 has not moved to the storage position (ST16-3: No), the process returns to ST16-3.
The process of FIG. 34B is completed from ST16-1 to ST16-4, and the process proceeds to ST17 of FIG. 33B.

According to the above processing flow, it is possible to prevent the movable member 55 from being left in a protruding state after the occupant gets off the vehicle.

<< Control flow of seat switching device >>
Next, control 1 of the seat switching device of ST10 will be described in detail with reference to FIG. 35A.
When the processing of the flowchart of FIG. 35A starts, first, in ST10-1, it is determined whether or not the seat changeover switch 147 is turned on.
When the seat changeover switch 147 is turned on (ST10-1: Yes), the seated occupant wants to move the vehicle seat S from the normal position of FIG. 30A to the reclining position of FIG. 30B. The standby mode shown in 29B is switched to the relax mode shown in FIGS. 30A and 30B, and the lighting is turned on. Then, the process proceeds to ST10-3, and the driving power is supplied to the seat switching device to drive the seat switching device.
On the other hand, when the seat changeover switch 147 is not turned on (ST10-1: No), it is assumed that the occupant wants to sit on the vehicle seat S in the normal position, and the process of FIG. 35A is completed.

After the operation of the seat switching device is started in ST10-3, the process proceeds to ST10-4, and it is determined whether the vehicle seat S has moved to the reclining position (predetermined position in front).
When the vehicle seat S has moved to the reclining position (ST10-4: Yes), the process proceeds to ST10-5, and the supply of drive power to the seat switching device is stopped. As a result, the vehicle seat S is held in the reclining position.
When the supply of the drive power is stopped, the seat changeover switch 147 is controlled to be forcibly returned from on to off.
On the other hand, when the vehicle seat S has not moved to the reclining position (ST10-4: No), the process returns to ST10-3.

After the operation of the seat switching device is stopped in ST10-5, the process proceeds to ST10-6, the relax mode shown in FIGS. 30A and 30B is switched to the standby mode shown in FIGS. 29B, and the lighting is turned on.

After the standby mode lighting is turned on in ST10-6, the process proceeds to ST10-7, and it is determined whether the seat changeover switch 147 is turned on again.
When the seat changeover switch 147 is turned on (ST10-7: Yes), the seated occupant wants to return the vehicle seat S from the reclining position of FIG. 31A to the normal position of FIG. 31B. The standby mode shown in FIG. 31 is switched to the relax mode shown in FIGS. 31A and 31B, and the lighting is turned on. Then, the process proceeds to ST10-9, and the driving power is supplied to the seat switching device to reverse the operation of the seat switching device.
On the other hand, when the seat changeover switch 147 is not turned on (ST10-7: No), it is assumed that the occupant wants to sit on the vehicle seat S in the reclining position, and the process of FIG. 35A is completed.

After starting the reverse operation of the seat switching device in ST10-9, the process proceeds to ST10-10, and it is determined whether the vehicle seat S has returned to the normal position.
When the vehicle seat S returns to the normal position (ST10-10: Yes), the process proceeds to ST10-11 and the supply of drive power to the seat switching device is stopped. As a result, the vehicle seat S is held in the normal position.
On the other hand, when the vehicle seat S has not moved to the normal position (ST10-10: No), the process returns to ST10-9.
The process of FIG. 35A is completed from ST10-1 to ST10-11, and the process proceeds to ST-11 of FIG. 33B.

Through the above series of processing flows, the seat switching device can switch the vehicle seat S between the normal position and the reclining position in order to improve the comfort of the seated occupant.

In moving the vehicle seat S to be the rear seat from the normal position to the reclining position, it is preferable to move the front seat located in front of the vehicle seat S to the front side of the seat in advance from the normal position.
Specifically, when the seat changeover switch 147 is turned on, the slide rail device, reclining device and height link device mounted on the front seat are first operated to move the front seat to a position closer to the front side of the seat. It is good to let it.
Then, when the front seat is advanced by about half to a predetermined moving position, the vehicle seat S may start the switching operation.
By doing so, sufficient space can be secured between the front seat and the rear seat, and smooth switching operation between the front seat and the rear seat can be realized.

Next, control 2 of the seat switching device of ST17 will be described in detail with reference to FIG. 35B.
When the processing of the flowchart of FIG. 35B is started, first, in ST17-1, it is determined whether or not the vehicle seat S has returned to the normal position while remaining in the front predetermined position.
When the movable member 55 remains in the front predetermined position (ST17-1: Yes), the process proceeds to ST17-2 and the seat switching device is operated in the reverse direction.
On the other hand, when the vehicle seat S does not remain in the front predetermined position (ST17-1: No), the process of FIG. 35B ends.

After starting the reverse operation of the seat switching device in ST17-2, the process proceeds to ST17-3, and it is determined whether the vehicle seat S has returned to the normal position.
When the vehicle seat S returns to the normal position (ST17-3: Yes), the process proceeds to ST17-4, and the supply of drive power to the seat switching device is stopped. As a result, the vehicle seat S is held in the normal position.
On the other hand, when the vehicle seat S has not moved to the normal position (ST17-3: No), the process returns to ST17-2.
The process of FIG. 35B is completed from ST17-1 to ST17-4, and the process proceeds to ST-18 of FIG. 33B.

According to the above processing flow, it is possible to prevent the vehicle seat S from being left in the reclining position, for example, after the occupant gets off the vehicle.

<< Control flow of side support device >>
Next, the control of the side support device of ST13 will be described in detail with reference to FIG. 36.
When the processing of the flowchart of FIG. 36 starts, first, in ST13-1, it is determined whether or not the seating sensor 145 is still on.
When the seating sensor 145 is left on (ST13-1: Yes), it is assumed that the seated occupant is trying to get off by leaning toward the open vehicle door side in ST13-2. The side support device 70 is controlled to switch from the unlockable state to the unlockable state.
Here, the unlockable state means a state in which the side support device 70 cannot operate, and more specifically, a state in which the lock release device 90 cannot release the locked state.
The unlockable state refers to a state in which the side support device 70 can operate, and more specifically, a state in which the unlockable device 90 can release the locked state.
On the other hand, when the seating sensor 145 is not in the state of being turned on (ST13-1: No), it is assumed that the seated occupant has already disembarked from the vehicle door, and the process of FIG. 36 is terminated.

After switching the side support device 70 to the unlockable state in ST13-2, the process proceeds to ST13-3 to determine whether the seating sensor 145 has been turned off.
When the seating sensor 145 is turned off (ST13-3: Yes), it is assumed that the seated occupant has finished disembarking while being supported by the side support device 70, and the vehicle proceeds to ST13-4 to control the side support device 70 again. Switch from the unlockable state to the unlockable state.
On the other hand, when the seating sensor 145 is not turned off (ST13-3: No), the process further proceeds to ST13-5, and it is determined whether a predetermined time has elapsed from the start of the switching control of the side support device 70.
If the predetermined time has already passed (ST13-5: Yes), the process proceeds to ST13-4, and the side support device 70 is switched to the unlockable state. On the other hand, if the predetermined time has not passed (ST13-5: No), it is assumed that the seated occupant is about to get off, and the vehicle returns to ST13-3.
The process of FIG. 36 is completed from ST13-1 to ST13-5, and the process proceeds to ST-14 of FIG. 33B.

Through the above series of processing flows, the side support device 70 can assist the occupant's disembarkation operation while stably ensuring the holdability of the seated occupant. Further, since the cushion side portion 1c is not intentionally tilted when the occupant is riding, consideration is given to ensuring that the occupant can get on the vehicle.

When the side support device 70 is in the unlockable state, it is desirable that the control device 140 controls the belt assist device 50 and the seat switching device so that they cannot operate.
That is, it is desirable to control the side support device 70 so as to operate in preference to the belt assist device 50 and the seat switching device.

If the control device 140 has received a detection signal from a child seat detection sensor (not shown) in advance before the above processing flow, the side support device 70 is forcibly maintained in an unlockable state. You may control it.
By doing so, if a child seat (not shown) is attached, a safety lock can be applied in advance for infants and children.

<Other embodiments>
In the above embodiment, the cushion side portion 1c is movable between the protruding position shown in FIGS. 12A and 12B and the retracted position where the cushion material 1a retracts downward as shown in FIGS. 17A and 17B. However, the retreat position can be changed without particular limitation.
For example, the cushion material 1a may be retracted so as to be stored behind the seat, or the cushion material 1a may be partially retracted downward.

In the above embodiment, the cushion side portion 1c is configured to move from the protruding position to the retracted position according to the seating load of the occupant after the locked state of the locking device is released, but the present invention is not particularly limited. , The structure may be such that it automatically moves from the protruding position to the retracted position.

In the above embodiment, the side support device 70 is configured as a device capable of assisting the occupant's disembarkation operation, but is not particularly limited and can assist the occupant's disembarkation operation and disembarkation operation. It may be configured as a device.
In that case, it is more desirable that the amount of movement of the cushion side portion 1c by the side support device 70 is smaller during the occupant's boarding operation than during the disembarking operation.
Further, it may be configured as a device capable of assisting only the riding operation of the occupant.

In the above embodiment, the side support device 70 (unlocking device 90) is arranged on the cushion side portion 1c of the seat body, but is not particularly limited, and is arranged on the side side portion of the seat body in the seat width direction. I just need to be there.
The side side portion includes, for example, a cushion side portion 1c and a side portion of the cushion central portion 1d.

In the above embodiment, the unlocking device 90 includes two unlocking members, a first unlocking lever 91 and a second unlocking lever 94, but is not particularly limited, and for example, the first unlocking lever 91. You may only have it.

In the above embodiment, the unlocking device 90 is configured to release the locked state when the first unlocking lever 91 and the second unlocking lever 94 are moved to the unlocked positions in this order, but the lock release device 90 is particularly limited. Can be changed without.
For example, the lock may be released when the first lock release lever 91 and the second lock release lever 94 move to the unlock position at the same time, or the second lock release lever 94 and the first lock release lever 91 may be released in this order. It may be unlocked when it moves to the unlocked position.

In the above embodiment, as shown in FIG. 1, the first lock release lever 91 is arranged in the cushion central portion 1d, and the second lock release lever 94 is arranged in the cushion side portion 1c, respectively, and the seat cushion 1 and the seat are arranged. The back 2 and the headrest are arranged on the left and right outside from the left and right center positions, and are arranged on the left and right outside from the seating center position when the occupant is seated, but the arrangement can be changed without particular limitation.
For example, the first lock release lever 91 may be arranged at a predetermined position on the seat cushion 1 or the seat back 2, and the second lock release lever 94 may be arranged at a predetermined position on the vehicle door.
Further, for example, the first lock release lever 91 is attached to a seatbelt device (not shown) and is provided so as to operate in response to the removal of the seatbelt, and the second lock release lever 94 is at a predetermined position for the vehicle door. It may be attached to the door and provided to operate in response to the opening / closing operation of the door.

In the above embodiment, a storable vehicle seat used in an automobile has been described as a specific example, but the present invention is not limited to this, and the vehicle seat for trains, buses, etc., as well as the vehicle seat for airplanes, ships, etc. It can also be used as.

In the present embodiment, the vehicle seat S and the vehicle unit U according to the present invention have been mainly described.
However, the above embodiment is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and it goes without saying that the present invention includes an equivalent thereof.

U Vehicle unit S Vehicle seat 1 Seat cushion 1a, 2a, 3a Cushion material 1aa Rear engagement protrusion 1ab Front engagement protrusion 1b, 2b, 3b Skin material 1c Cushion side part 1d Cushion center part 2 Seat back 2c Back side part 3 Headrest 4 Seat belt 10 Cushion frame 11 Side frame 12 Front frame 13 Rear frame 14 Support frame 14a Front support frame part 14aa Mounting hole 14b Side support frame part 14c Central support frame part 15 Mounting bracket 15a Mounting hole 16 Link 16a Upper link 16b Lower link 16c Link rotation shaft 20 Back frame 21 Upper frame 21a Side frame part 21b Upper frame part 21c Connecting frame part 22 Lower frame 22a Side frame part 22b Lower frame part 23 Central frame 24 Back rotation shaft 25 Mounting wires 30, 30a, 30b , 30c Slide rail device 31 Lower rail 32 Upper rail 33 Drive motor 40 Slide bar device 41 Mounting bracket 42 Slide bar 43 Mounting bracket 44 Slide cylinder 50 Belt assist device 51 Mounting plate 51a Storage opening 52 Storage plate 53 Support plate 54 Rotating shaft 55 Movable member 56 Auxiliary spring 70 Side support device 71 Side plate 71a Through hole 71b Side wall 72 Side bracket 72a Upper wall 72b Side wall 73 Rotating shaft 74 Side base 74a Bottom wall 74b Side wall 75 Second side base 76 Mounting wire 80 Lock Device 81 Lock lever 81a Engagement protrusion 81b Held part 81c Penetration protrusion 82 Support shaft 83 Locked lever 83a Engagement groove 84 Fixing bolt 90 Unlocking device 91 First unlocking lever (first unlocking member)
91a 1st extension part 91b 2nd extension part 92,95 Rotating shaft 93 1st transmission cable 93a, 96a Cable mounting end 94 2nd lock release lever (second lock release member)
96 2nd transmission cable 100 1st transmission lever 100a Mounting hole 100b Through hole 101 1st connecting shaft 110 2nd transmission lever 110a Mounting hole 110b Through hole 111 2nd connecting shaft 112 Pressing lever 112a Penetrating protrusion 112b Pressing part 113 Connecting pin 120 Relay lever 120a Fitting protrusion 120b Pressing receiving part 120c Holding part 130 Lighting device 131 Front instrument panel lighting 132 Front door lighting 133 Rear door lighting 134 Rear armrest lighting 135 Rear foot lighting 140 Control device (ECU)
141 Drive circuit 142 Body power supply 143 Door release sensor 144 Door open / close sensor 145 Seating sensor 146 Buckle sensor 147 Seat changeover switch

Claims (1)

The seat cushion on which the occupants sit and
In the seat cushion, the side portion in the seat width direction is provided so that the seating surface protrudes from the central portion in the seat width direction, and the retracting position is provided so that the seating surface recedes from the protruding position. A vehicle seat with a side support device that supports it so that it can be moved between.
The side support device unlocks a side plate that moves between the protruding position and the retracted position while supporting the side portion, a locking device that locks the side plate at the protruding position, and a locked state of the locking device. Equipped with an unlocking device,
The unlocking device has an unlocking member that is arranged on a side portion of the seat cushion in the seat width direction and operates to release the locked state.
The unlocking member is characterized by having a first portion located inside the seat width direction with respect to the side plate and a second portion located rearward of the seat with respect to the side plate. Vehicle seat.

Images