JP3139489B2 - Vehicle lift-up seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lift-up seat for a vehicle that enables a disabled person or an elderly person (hereinafter simply referred to as a "seat person") to easily get on and off a vehicle.

[0002]

2. Description of the Related Art The applicant of the present application discloses a seat apparatus having a seat body and front and rear wheels that can be folded, and a seat apparatus installed in a vehicle cabin. A lift-up device for moving the device between the vehicle interior and the exterior of the vehicle interior, wherein the lift-up device allows the seat device to be moved into the vehicle interior to use the seat device as a seat for the vehicle interior; and A vehicle lift-up seat in which the seat device is moved out of the vehicle compartment by the lift-up device and then separated from the lift-up device so that the seat device can be used alone as a wheelchair has been invented.

According to this vehicle lift-up seat,
Since the seated person can get on the vehicle while sitting on the seat device, and after sitting outside on the seat device, the seat device can be separated from the lift-up device and used as a normal wheelchair. The occupant does not need to perform any transfer operation between the vehicle interior seat and the wheelchair, so that the burden on the occupant and his / her caregiver can be greatly reduced. Further, according to this lift-up seat for a vehicle, since the front and rear wheels of the seat device are foldable along the lower surface of the seat body, the occupant gets into the vehicle interior with the seat device while sitting on the seat device. At this time, by folding the front and rear wheels along the lower surface of the seat body, the occupant can sit at substantially the same height as the fellow passenger in the vehicle cabin, thereby giving the occupant special emotions (for example, I was able to sit down without feeling alienated (like being treated specially).

[0004]

However, there has been a need to further improve the above-mentioned vehicle lift-up seat. That is, in the above-described vehicle lift-up seat, the connection plate provided on the lift-up device side is fitted into the connection portion provided on the seat device side to connect the seat device to the lift-up device. The connection state is locked by inserting a lock bar, which is provided on the seat device side and moves up and down in conjunction with the folding operation of the rear wheel of the seat device, into a lock hole of the connection plate. According to the lock mechanism configured as described above, since the mechanical parts such as the lock bar are attached to the seat device, not only the appearance is impaired, but also the weight of the seat device increases and the cost increases. . SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle lift-up seat that can reliably maintain a connection state of a seat device to a lift-up device without using the lock mechanism as described above.

[0005]

Means for Solving the Problems] Therefore, lift-up vehicle seat according to claim 1 is a seat assembly having front and rear wheels can be folded Ri seat body and folded, is installed in the vehicle interior, the seat device And a lift-up device for moving the seat device between the vehicle interior and the exterior of the vehicle interior while maintaining the seating posture of the seat body, and the seat device moves into the vehicle interior to move into the vehicle interior. A lift-up seat for a vehicle that can be used as a seat for a vehicle, moves out of the vehicle compartment, and can be separated from the lift-up device and used alone as a wheelchair, and is opened downward to the seat device. while providing the connecting portion of the shape, 該Ri the tip of the link arm of the lift-up device
Inserted into the connection part with the lifting operation of the
A connecting plate, and the connecting plate is inserted into the connecting portion.
With the lifting operation of the lift-up device after the
The displacement of the connecting portion upward with respect to the connecting plate.
And a stopper block for regulating the pressure .

According to this vehicle lift-up seat,
By inserting the connecting plate of the lift-up instrumentation <br/>置側the connecting portion of the seat apparatus in accordance with the upward movement of the lift-up device, the seat device is connected to the lift-up device. Communicating
After the plywood is inserted into the connecting part, it is further lifted up
Continues the ascent operation, the stopper block
Start working. When the stopper block functions, the connecting part
Displacement upward with respect to the connecting plate is regulated.
The connection state of the connecting plate to the connecting part,
The connection state of the sheet device to the
You. In this way, since the seat device is connected to the lift-up device by inserting the connecting plate into the connecting portion, the connecting state of the connecting plate to the connecting portion is shielded by the connecting portion and cannot be seen from the outside, Therefore, the appearance is not impaired as in the case where the above-mentioned conventional lock mechanism is adopted,
Further, the weight and cost of the seat device can be reduced.

According to a second aspect of the present invention, there is provided a lift-up seat for a vehicle according to the first aspect, wherein a lock bar is provided on the connecting portion along a width direction of the connecting portion, while a connecting plate is provided on the connecting plate. A lock recess for inserting the lock bar is provided, and when the seat device is housed inside the vehicle cabin, a stopper block provided on the link arm is positioned on the opening side of the lock recess, so that the lock bar comes out of the lock recess. The configuration is prohibited. According to this vehicle lift-up seat, when the seat device is housed in the vehicle interior,
The connection state of the connection plate to the connection portion is more firmly maintained, so that the detachment of the seat device from the lift-up device, particularly during traveling of the vehicle, can be reliably prevented.

According to a third aspect of the present invention, there is provided a lift-up sheet for a vehicle according to the first aspect, wherein a positioning pin is provided in the seat device, and a positioning hole is provided in the lift-up device. The seating device is positioned relative to the lift-up device by inserting the positioning pin into the seat device. According to the lift-up seat, the seat device is always connected to the lift-up device in a fixed positional relationship, and the position of the seat device is prevented from being shifted in the connected state.

According to a fourth aspect of the present invention, there is provided a lift-up sheet for a vehicle according to the third aspect, wherein a positioning assisting member is provided on the seat device, and a positioning assisting surface is provided on the lift-up device. The positioning assisting member is slid on the positioning assisting surface to guide the tip of the positioning pin into the positioning hole. According to the lift-up sheet, in the operation of connecting the lift-up device to the seat device, the positioning assisting member on the sheet device side is slidably contacted with the positioning assisting surface on the lift-up device side. Is guided to the positioning holes, so that even when the lift-up device is inclined with respect to the seat device, the positioning pins are securely inserted into the positioning holes, so that the connection operation of the lift-up sheet on an inclined ground can be performed. This makes it possible to expand a place where the lift-up sheet can be used.

[0010]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG. 1 and 2 show the entirety of a vehicle lift-up seat 1 according to the present embodiment. The vehicle lift-up seat 1 includes a seat device 10 and a lift-up device 50 installed in a vehicle interior for moving the seat device 10 between the vehicle interior and the exterior of the vehicle interior. By connecting the seat device 10 to the lift-up device 50 and operating the lift-up device 50, the seat device 10 is moved from the vehicle interior to the vehicle interior and vice versa from the vehicle interior to the vehicle interior while maintaining the sitting posture. be able to. The seat device 10 can be used as a normal vehicle seat by being moved into the cabin, and can be used alone as a wheelchair by being moved out of the cabin and separated from the lift-up device 50.

First, the seat device 10 includes a seat body 11.
And front and rear wheels 60, 60, 70, 70 that can be folded. The seat body 11 includes a seat cushion 11.
a, and a seat back 20
It is fixed in a state where it is placed on the. FIG. 3 shows a seat device 1.
0 shows a state where the seat body 11 is excluded. The front wheels 60, 60 and the rear wheels 7 are mounted on the seat frame 20.
0 and 70 are foldably attached via an interlocking mechanism 35. That is, the rear ends of the rear wheel stays 71, 71 are supported by the rear portions of the left and right side frames 21, 21 of the seat frame 20 so as to be rotatable up and down via the support shaft 71a. Rear wheels 70 are rotatably attached to lower ends of the rear wheel stays 71, 71, respectively. The two rear wheel stays 71 are connected by a connecting rod 72. Therefore, both rear wheel stays 71, 71 rotate up and down integrally. A rear end of a rear wheel link arm 74 is connected to a longitudinal center of the connecting rod 72 via a support shaft 73 so as to be rotatable up and down. The front end of the rear wheel link arm 74 is rotatably connected to the center of the moving frame 80 in the longitudinal direction via a support shaft 75. The moving frame 80 will be described later.

A front frame 23, a middle frame 22, and a rear frame 24 are mounted in a bridging manner from the front side between the side frames 21, 21 of the seat frame 20. A footrest support frame 100 is attached to the front frame 23, and a flat footrest 101 is provided at the center of the footrest support frame 100.
Is attached so that it can be taken out and stored. L-shaped support frames 102, 10 are provided on both sides of the footrest support frame 100.
2 are attached, and both support frames 102, 102
A connecting rod 103 is attached in a bridging manner therebetween. At both ends of the connecting rod 103, substantially central portions of the front wheel stays 91 are attached rotatably up and down via support shafts 91a. Both front wheel stays 91,
A fork-shaped front wheel bracket 96 that is rotatable around the axis of the front wheel stay 91 is attached to a lower portion of the front wheel stay 91, and the front wheel 60 is rotatably attached to the front wheel bracket 96. Therefore, the front wheels 60, 60
Is attached to the front wheel stay 91 so as to be swingable (the rotation axis of the front wheel 60 is movable along the horizontal plane direction). On the other hand, at the upper ends of both front wheel stays 91, 91,
A front end of a front wheel link arm 93 is rotatably connected via a support shaft 92. Both front wheel link arms 9
3 has a support shaft 94 and an L-shaped bracket 9 respectively.
5, and is rotatably connected to an end of the moving frame 80.

Next, between the front frame 23 and the middle frame 22 of the seat frame 20, two slide bars 81, 81 are attached in parallel with each other. The moving frame 80 is slidably attached to the front and rear via the two slide bars 81 and 81. A nut 82 is mounted substantially at the center of the moving frame 80.
, A screw shaft 83 is inserted in a meshing state. The rear end of the screw shaft 83 is rotatably supported by the middle frame 22,
The front end is connected to an electric motor 85 via a gear box 84. When the electric motor 85 rotates forward or backward, the screw shaft 83 rotates forward or reverse through the gear box 84, and the moving frame 80 moves forward or parallel through the meshing action of the screw shaft 83 and the nut 82. Moving. A mechanism for moving the moving frame 80 in parallel, that is, mainly the electric motor 85, the screw shaft 83, and its peripheral devices constitute a driving device described in the claims.

According to the driving device 86, the electric motor 8
5 and the moving frame 80 is moved forward in parallel,
Since the front wheel link arms 93 move forward, the front wheel stays 91 rotate in the clockwise direction (direction for moving the front wheel 60 rearward) around the support shaft 91a, respectively. The front wheels 60, 60 are folded rearward. On the other hand, the electric motor 85 rotates forward to move the moving frame 8.
When 0 moves in the forward direction, the rear wheel link arm 74 also moves forward, so that the connecting rod 72 moves forward, so that both rear wheel stays 71, 71 rotate counterclockwise in the drawing to move both The rear wheels 70, 70 are folded forward.
Hereinafter, the moving direction (forward) of the moving frame 80 when the electric motor 85 is rotated forward, the front wheel link arms 93, 93
, The direction of rotation of the front wheel stays 91, 91 (clockwise direction in FIG. 3), the rear wheel link arm 74.
Direction of movement (forward), and the direction of rotation of the rear wheel stay 71 (FIG. 3).
In the counterclockwise direction)
Also called.

Conversely, when the electric motor 85 rotates in the reverse direction, the moving frame 80 moves rearward in parallel, so that the front wheel link arm 9
The front wheel stays 91, 91 rotate counterclockwise in the figure around the support shafts 91a, 91a, whereby the front wheels 60, 60 are taken out of the folded position. . Further, when the moving frame 80 moves rearward, the rear wheel link arm 74 moves rearward, so that the two rear wheel arms 71, 71 rotate clockwise in the drawing around the support shaft 71a, respectively. Both rear wheels 70,
70 is taken out from the folded position downward. Hereinafter, the moving direction or the rotating direction of each unit when the electric motor 85 rotates in the reverse direction is also referred to as a “removing direction”. in this way,
When the moving frame 80 is moved by the driving device 86, the front wheels 60, 60 and the rear wheels 70, 70 are interlocked and folded upward or taken out downward by the interlocking mechanism 35. FIG. 4 shows the front wheels 60, 60 and the rear wheels 7 in the take-out position.
0, 70 are indicated by solid lines, and the front wheels 60, 60 and the rear wheels 7
The state where 0 and 70 are folded is indicated by a two-dot chain line.

Next, when the front wheels 60 are folded, the posture is forcibly changed from the vertical posture to the horizontal posture. As described above, the front wheel brackets 96, 96 for rotatably supporting the front wheel 60 are rotatably supported around the axis of the front wheel stay 91 with respect to the front wheel stay 91, so that the front wheels 60, 60 It is supported so that it can swing right and left about the core, that is, the caster axis C.
On the other hand, as shown in FIG.
A posture regulating guide 77 is attached via a support plate 76, respectively. The attitude regulating guide 77 has a configuration in which a rod-shaped guide body 77a is fixed to the support plate 76 via two support columns 77b and 77c. In FIG. 3, since the lower support column 77c is shorter than the upper support column 77b, the guide main body 77a is inclined inward in the width direction toward the upper side. Also, the guide body 77a
, A collar 77d is mounted so as to be rotatable and slidable in a certain range in the axial direction. Therefore, when the rear wheel arm 71 is at the take-out position, the collar 77
d is located near the lower side of the guide body 77a due to its own weight.

The posture regulating guide 77 constructed as described above,
According to 77, when the front wheels 60, 60 and the rear wheels 70, 70 are folded, the collars 7 of the posture regulating guides 77, 77 are used.
7d and 77d abut on the edge of the front wheel 60, respectively. The position where the collars 77d abut against each other is the edge of the front wheel 60 and is set to be a position displaced from the caster axis C. In this contact state, the rear wheel stay 71 rotates upward at a higher speed than the front wheel stays 91, 91, whereby the posture of the front wheel 60 is gradually changed from the vertical posture to the horizontal posture. Since the collars 77d, 77d are rotatable and slidable in a certain range in the axial direction, the collars 77d, 7d associated with the posture changing operation of the front wheels 60, 60 are provided.
The movement of the contact position between the front wheels 7d and the front wheels 60 (movement along the outer periphery of the front wheels 60) is smoothly performed, and thus the posture changing operation and folding operation of the front wheels 60, 60, and further, the folding of the rear wheels 70, 70. The operation is performed smoothly.
The vertical posture of the front wheel 60 refers to a posture in which the rotation axis (axle) is along the horizontal direction (parallel to the ground) during the folding operation of the front wheel 60, and the lateral posture is the front wheel 6.
At the time of completion of the folding operation of 0, it refers to a posture in which the rotation axis is aligned in a vertical direction (a direction orthogonal to the ground).
As described above, when the front wheels 60 are stored, the posture is changed to the lateral posture, so that the size of the downward projection can be reduced by that amount. Since the stowage height can be reduced, the special consciousness of the occupant (such as a feeling of alienation of being treated specially) can be eased.

Next, as shown in FIG. 1, each of the left and right cover members 30, 30 is provided with a rising portion 30b along the side of the seat back 11b, and inside the rising portion 30b. A connection portion 40 for connecting the seat device 10 to the lift-up device 50 is provided. Details of the connecting portion 40 are shown in FIGS. 9 and 10. Since the two connecting portions 40, 40 are configured symmetrically, the connecting portion 40 on the left side as viewed from the occupant will be described as shown in FIGS. At the rear of the left side frame 21 of the seat frame 20, a substantially L-shaped first
A side plate 41 is fixed in a rising shape, and a second side plate 42 is fixed above the first side plate 41 in parallel with a predetermined interval. The front edge between the side plates 41 and 42 is closed by an upper front plate 43 and a lower front plate 44. Upper front plate 43
Is bent in an inverted U-shape, and a hooking concave portion 40a for holding the connected upper portion 56c of the connecting plate 56 in a holding shape is formed in the upper portion of the connecting portion 40.

The two side plates 41, 42 and the upper and lower front plates 43, 4
4, a substantially box-shaped connecting portion 4 opened rearward and downward.
The connecting plate 56 of the lift-up device 50 is fitted through the rear and lower openings. As shown in the drawing, a guide edge 42a bent outward at a substantially constant width is formed at the rear end edge of the second side plate 42, and the guide edge 42a is connected to the connecting portion 40 by the lift-up device 50. It functions as a guide plate when the plate 56 is fitted. A pair of left and right connecting portions 40, 40 provided in this manner
And the connecting plates 56, 56 of the lift-up device 50, respectively.
The seat device 10 is connected to the lift-up device 50 by fitting. In addition, both side plates 41 and 4
A lock bar 45 is fixed to the upper portion between the two in a bridging manner. The lock bar 45 engages with the connecting plate 56 of the lift-up device 50 to connect the connecting plate 56 to the connecting portion 40. The state is locked.
Details on this point will be described later.

Next, the lift-up device 50 installed in the vehicle compartment will be described. This lift-up device 50
As shown in FIG. 12, a main base 52 movable in the front-rear direction of the vehicle via slide rails 51, 51 installed on a floor F in the vehicle interior, a rotating disk 53 mounted on the main base 52, and a rotating disk The swing base 54 includes a swing base 54 and a pair of left and right four-bar linkages 55 and 55 attached to both sides of the swing base 54. In the present embodiment, no special driving means for moving the main base 52 in the front-rear direction is provided, and therefore, the moving operation is performed by a manual operation. The position of the main base 52 in the vehicle longitudinal direction can be locked at an arbitrary position by a slide lock mechanism not shown. Note that the main base 52 may be electrically driven by, for example, a sliding mechanism that combines a motor and a rack and pinion. The turntable 53 is an inner ring 53
a and outer ring 53b are rotatably assembled to each other.
The outer ring 53b is fixed on the main base 52, and the inner ring 53
a is fixed to the lower surface of the swing base 54. The rotating base 53 supports the swing base 54 so as to be rotatable by about 90 degrees between the front direction of the vehicle and the direction toward the vehicle (the door opening D side, see FIGS. 1 and 2). The swing base 54 is held at two positions, that is, toward the front of the vehicle and toward the vehicle, by a rotation lock mechanism (not shown).

Although not shown, the swing base 54
An interlocking mechanism for interlocking the rotation of the swing base 54 with the sliding operation in the vehicle front-rear direction is interposed between the vehicle and the vehicle floor F. This interlocking mechanism includes an arc-shaped pinion gear attached to the lower surface of a swing base 54, an intermediate gear rotatably supported by the main base 52 and meshing with the pinion gear, and a slide rail 51 on the vehicle compartment side on the floor F. And a rack engaged with the intermediate gear.

Next, the two-joint link mechanisms 55, 55 have two link arms 55a, 55b, respectively, and the lower ends of the front link arms 55a, 55a are supported on side walls 54c of the swing base 54. It is vertically rotatably connected via shafts 55d, 55d. On the other hand, the lower ends of the two link arms 55b, 55b on the rear side are integrally connected by one connecting shaft 57 which rotates with respect to the side wall portion 54c. The arms 55b, 55b are connected to the swing base 54 so as to be rotatable up and down. An electric cylinder 90 is connected to the connection shaft 57 as a drive source for swinging the two four-bar linkages 55 and 55 to the outdoor side.

The connecting plates 56 described above are attached to the tips of the two four-bar linkages 55, 55, respectively. The front and rear link arms 55 with respect to the two connecting plates 56,56.
The upper ends of a and 55b are rotatably connected via support shafts 56a and 56b. Both connecting plates 56, 56 are shown in FIG.
As shown in FIG.
It has a substantially flat plate shape that can be fitted into the device with almost no gap. When the upper portion 56c of the connecting plate 56 is fitted into the hooking concave portion 40a of the connecting portion 40, the displacement of the upper portion 56c in the detaching direction (rightward in FIG. 10) is regulated. Lock pawls 5 are provided at the lower portions of both connecting plates 56, 56, respectively.
8 is provided, and the rearward displacement of the connection plate 56 is also regulated by hooking the lock claw 58 against the lower front plate 44 of the connection portion 40 from below.

A lock recess 56d is formed in the front side of both connecting plates 56, 56 in a cut shape. On the other hand, FIG.
As shown in FIG. 10, a block 55c is attached to each of the link arms 55b, 55b on the rear side of the four-bar linkage 50 near the support shaft 56b. As shown in FIG. 10, connecting plates 56, 56 are connected to connecting portions 4 respectively.
0, the lock bar 45 of the connecting portion 40 fits into the lock concave portion 56d, and the connecting plate 5
6 is restricted from moving backward. In addition, when the seat device 10 is moved into the room by the operation of the lift-up device 50, the front and rear link arms 55a,
5b is located almost upright, so that the above-mentioned block 55
c protrudes above the lock bar 45, whereby the relative movement of the lock bar 45 from the lock recess 56d is prohibited, and the connection state of the lift-up device 50 to the seat device 10 in the vehicle interior is reliably maintained. Sliding plates 56e, 56e each having a predetermined plate thickness are attached to both side surfaces of both connecting plates 56, 56, respectively. The connecting plates 56, 56 are formed by the sliding plates 56e, 56e.
Is in the sheet thickness direction with respect to the connecting portion 40 (the sheet device 10
(In the width direction), and can be smoothly movably fitted in the plane direction.

Next, the lower ends of the two connecting plates 56, 56 are connected by a receiving frame 59. Seat device 10
Is connected to the lift-up device 50, the receiving frame 59 is positioned substantially below the rear frame 24 of the seat frame 20 of the seat device 10 from above. As shown in FIG. 11, the right and left side frames 2 of the rear frame 24
Positioning pins 105 for positioning with respect to the lift-up device 50 are attached to the two positions closer to 1 and 21 so as to protrude downward. On the other hand, positioning holes 59a, 59a are formed in the receiving frame 59, and the positioning pins 105 are inserted into both the positioning holes 59a, 59a, whereby the lift-up device 50 is positioned with respect to the sheet device 10. You.

A power connector (so-called junction connector) is provided on the rear frame 24 of the seat frame 20.
The male side 110a of 110 is attached. On the other hand, the female side 110b of the power supply connector 110 is attached to the receiving frame 59. Therefore, when the seat device 10 is connected to the lift-up device 50, the rear frame 24 of the seat frame 20 is positioned substantially in an overlapping manner on the receiving frame 59, and the male side 110a of the power connector 110 is connected to the female side 110b. And the seat device 10 and the lift-up device 50 are also electrically connected. The male side 110a of the power connector 110 is connected to the electric motor 85 of the driving device 86. Therefore, the male side 110a and the female side 11a of the power connector 110
0b is connected, electric power is supplied to the electric motor 85 of the drive device 86, whereby the front wheels 60, 60 and the rear wheels 7
0, 70 can be folded or taken out.

The lift-up device 5 configured as described above
0 is connected to or disconnected from the sheet device 10 as follows. During the following operations,
The seated person may remain seated on the seat device 10, and may move from the outside of the vehicle compartment to a predetermined position in the vehicle compartment while sitting on the seat device 10 and, conversely, move from the vehicle interior to the outside of the vehicle compartment. First, an operation for connecting the seat device 10 located outside the vehicle compartment to the lift-up device 50 will be described. FIG. 1 shows a state where the seat device 10 is separated from the lift-up device 50. Both four-link mechanism 55, 5 of lift-up device 50
5 is in a state of being tilted to the swing-out side as shown. On the other hand, in the seat device 10, the front wheels 60, 6
The seat device 10 can be used independently, that is, it can be used as a normal wheelchair to move on the road, with the 0 and the rear wheels 70, 70 taken out downward.

In order to connect the seat device 10 to the lift-up device 50 from such a state, the seat device 10
Is moved backward to approach the lift-up device 50, and the receiving frame 59 is positioned below the rear frame 24 of the seat frame 20. Thereafter, the electric cylinder 90 of the lift-up device 50 is activated to the upright side, and the two-bar linkage mechanism 5 is activated.
By moving 5,55 slightly in the upright direction,
The two connecting plates 56, 56 and the receiving frame 59 are integrally raised,
As a result, the receiving frame 59 is attached to the rear frame 2 of the seat frame 20.
4 is superimposed from below. In the process, the positioning pins 105, 105 are inserted into the positioning holes 59a, 59a, whereby the lift-up device 50 is positioned with respect to the seat device 10, and the power supply connector 110
The male side 110a is connected to the female side 110b, and power is supplied to the driving device 86.

Further, when the two connecting plates 56, 56 rise, the connecting plates 56, 56 are connected to the connecting portion 4 of the seat device 10.
0,40. When the upper end portions 56c, 56c of the two connecting plates 56, 56 fit into the hooking recesses 40a of the connecting portion 40, the locking claws 58, 58 of the two connecting plates 56, 56 respectively engage the lower front plate 44 of the connecting portion 40. The hook is hooked on the lower edge from below, and the lock pin 45 is fitted into the lock recess 56 d of the connecting plate 56. At this stage, the two connecting plates 56 are connected to the connecting portion 40 of the seat device 10 so as to be relatively immovable in the left-right direction and the rear.

In this way, the two connecting plates 56, 56 are connected to the connecting portions 40, 40 while moving the four-joint link mechanisms 55, 55 of the lift-up device 50 to the upright side (the indoor side), and then the electric cylinder 90 is continuously rotated in the reverse direction. By moving the four-bar linkage 55 to the upright side in this way, the seat device 10 can be lifted off the ground. At this stage, the lift-up device 50 is temporarily stopped. The seat device 10 is thus lifted off the ground so that the front wheels 60, 60 and the rear wheels 7
0,70 can be folded. The manner in which the front wheels 60, 60 and the rear wheels 70, 70 are folded is shown in FIG.

In order to fold the front wheels 60, 60 and the rear wheels 70, 70, the electric motor 85 of the driving device 86 may be started to the normal rotation side. At this stage, power is supplied to the electric motor 85 of the driving device 86 via the power connector 110. When the electric motor 85 starts to rotate forward, the moving frame 80 moves parallel to the folding side, so that the front link arms 93, 93 and the rear link arm 74 move in the folding direction (forward, left in FIG. 4). When both front wheel link arms 93, 93 move in the folding direction, both front wheel stays 91, 91 rotate in the folding direction (counterclockwise direction in FIG. 4) around the support shaft 91a, whereby both front wheels 60, 93 are rotated. 60 moves in the folding direction.
On the other hand, at the same time, the two rear wheel stays 71, 71 rotate in the folding direction (clockwise direction in FIG. 4) about the support shaft 71a, respectively, whereby the rear wheels 70, 70 move in the folding direction.

In the final stage of the folding operation of the front wheels 60, 60 and the rear wheels 70, 70, both the front wheels 60,
The posture 60 is forcibly changed from the vertical posture to the horizontal posture.
This situation is shown in FIGS. 5 and 6
As shown in FIG.
When 0 and 70 approach, the collars 77d of the attitude regulating guide 77 abut against the edges of the front wheels 60 and 60, respectively. When the rear wheel stays 71, 71 further rotate in the folding direction in this contact state, the bracket 9 of the front wheel 60 is rotated.
6 rotates with respect to the front wheel stay 91, whereby the front wheels 60, 60 ride on the guide body 77 a and assume a lateral posture. FIGS. 7 and 8 show the state in the horizontal posture.

When the positions of the front wheels 60, 60 are changed from the vertical position to the horizontal position, the folding of the front wheels 60, 60 and the rear wheels 70, 70 is completed. The moving frame 80
The slide front end position and the rear end position are detected by a sensor (limit switch). When the movable frame 80 reaches the slide front end position and the folding of the front wheels 60, 60 and the rear wheels 70, 70 is completed, the slide front end position of the movable frame 80 is detected by a sensor, and the electric motor 85 is output based on the output signal of the sensor. Stops. Conversely, when the moving frame 80 reaches the rear end position and the front wheels 60, 60 and the rear wheels 70, 70 are taken out, the rear end position of the moving frame 80 is detected by the sensor, and based on this, the electric motor 85 is automatically activated. Stop.

Thus, the front wheels 60, 60 and the rear wheels 70, 7
After the folding of the lift-up device 50 is completed,
The seat device 10 can be accommodated in the vehicle cabin by operating the vehicle in the vehicle cabin. Double 4-bar link mechanism 5
The electric cylinder 90 stops and the lift-up device 50 stops at the stage when the seat devices 5 and 55 are moved to the standing position and the seat device 10 is almost positioned on the swing base 54. At this stage, both four-bar linkages 55, 5
5 is locked in the upright position by a swing lock mechanism (not shown).
4 is held above.

The seat device 10 is provided with a swing base 54.
When the link arms 55b, 55b located on the rear side of the four-bar linkages 55, 55 are located substantially upright, the block 55c projects above the lock bar 45 as shown in FIG. As a result, the connected state of the seat device 10 to the lift-up device 10 is locked, and upward movement is restricted. After moving the seat device 10 into the room in this way, the seat device 10 and the swing base 54 are integrally rotated about 90 degrees by manual operation to be positioned at the seating position facing the front of the vehicle. In addition, the seat apparatus 10 is slid rearward while rotating to a position facing the vehicle forward to reach a seating position by the interlocking mechanism described above. Thus, a series of operations until the seat device 10 that can be used alone is positioned at the seating position in the vehicle compartment is completed.

Conversely, in order to move the seat device 10 from the seating position in the vehicle compartment to the outside of the vehicle compartment so that the seat device 10 can be used alone as a wheelchair, the above operation may be performed. That is, first, the seat device 10 is moved to the front by a predetermined distance in the vehicle interior while rotating the seat device 10 toward the door opening D by manual operation. With the seat device 10 facing the door opening side,
The electric cylinder 90 of the lift-up device 50 is activated in the reverse direction to activate the two-bar linkages 55 and 55 to the outside. Thereby, the seat device 10 can be moved from the vehicle interior to the exterior of the vehicle interior. When the lift-up device 50 is operated to the outdoor side, the link arms 55a, 55b of the two four-bar linkages 55, 55 tilt in the falling direction.
0, the link arms 55a,
55b are connected to the connecting plate 56 by supporting shafts 56a, 56
It rotates counterclockwise around b. When the rear link arms 56b, 56b rotate counterclockwise with respect to the connecting plate 56, respectively,
c is retracted from above the lock pin 45, whereby the lock pin 45 becomes relatively detachable from the lock recess 56d.

When the seat device 10 is moved out of the vehicle compartment and is not yet in contact with the ground, the folded front wheel 6
0, 60 and the rear wheels 70, 70 are taken out. This can be achieved by activating the electric motor 85 of the driving device 86 to the reverse rotation side. When the electric motor 85 is rotated in the reverse direction, the moving frame 80 moves in parallel to the take-out side (to the right in FIG. 4), whereby the two front wheel link arms 93, 93 and the rear link arm 74 are moved.
Moves to the ejection side. Both front wheel link arms 93, 9
When 3 moves to the take-out side, both front wheel stays 91, 91
Respectively rotate about the support shaft 91a in the take-out side (clockwise direction in FIG. 4).
0,60 is taken down. At the same time, both rear wheel stays 71, 71 rotate to the take-out side (counterclockwise in FIG. 4), and both rear wheels 70, 70 are taken out downward.

After the front wheels 60, 60 and the rear wheels 70, 70 have been taken out in this manner, the lift-up device 50 is further operated to the outdoor side (the four-link mechanism 55, 55 is tilted to the outdoor side). Accordingly, the seat device 10 can be grounded. After the seat device 10 is grounded, when the lift-up device 50 is continuously operated to the outdoor side, the connecting plates 56, 56 are extracted from the connecting portions 40, 40. That is, at this stage, as described above, the block 55c is retracted from above the lock pin 45, and the lock pin 45 is relatively detachable from the lock recess 56d.
The connection plate 56 is movable downward. For this reason, after the seat device 10 is grounded, the lift-up device 10 is further operated to the outdoor side to displace both the connecting plates 56, 56 downward with respect to the connecting portions 40, 40. As a result, the lock claws 58, 58 are disengaged from the lower edge of the lower front plate 44, the lock pin 45 is disengaged from the lock recess 56d, and the upper end 56c of the connecting plate 56 is disengaged from the hook recess 40a. When both connecting plates 56, 56 are displaced downward with respect to the connecting portions 40, 40, the receiving frame 59 is moved.
Is disengaged from the rear frame 24 of the seat frame 20, whereby the positioning pins 105, 105 are positioned by the positioning holes 59a,
The male connector 110a and the female connector 110b of the power connector 110 are separated from the power connector 59a, and the power supply to the seat device 10 is cut off.

Thus, both connecting plates 56, 56 are connected to connecting portion 4
When the seat device 10 is moved forward after being displaced downward with respect to 0 and 40, the seat device 10 is completely separated from the lift-up device 50. Thereafter, the seat device 10 can be used alone as a wheelchair. On the other hand, the lift-up device 50 from which the seat device 10 is separated has four-link mechanisms 55, 55.
Is actuated in the direction of returning to the interior side of the vehicle and is accommodated in the vehicle interior.

According to the vehicle lift-up seat 1 configured as described above, when the seat device 10 is connected to the lift-up device 50, the lift device 50 is operated to connect the two connecting plates 56, 56 to the seat device 10. Connecting part 40,
40, the connecting plates 56, 5
6 are hooked from below on the lower edge of the lower front plate 44 of the connecting portion 40, and the lock pins 45 are fitted into the lock recesses 56d of the connecting plates 56, 56, respectively. By the seat device 10
Are connected to the lift-up device 50 so as to be relatively immovable in the left-right direction and rearward.

In the connected state of the above steps, the seat device 10
Is accommodated in the passenger compartment, the link arms 55b, 55b behind the four-joint link mechanisms 55, 55 of the lift device 50 are provided.
Becomes almost upright. Then, as shown in FIG. 10, the block 55 attached to both link arms 55b, 55b
c, 55c are lock bars 45,
45, the lock bars 45, 45 are prevented from coming out of the lock recesses 56d, 56d, whereby the connection state of the seat device 10 to the lift-up device 10 in the passenger compartment is more securely locked. As a result, upward displacement (rattle or detachment) of the sheet device 10 is regulated.

As described above, the seat device 10 is connected to the lift-up device 50 by inserting the two connection plates 56, 56 of the lift-up device 50 into the connection portions 40, 40 of the seat device 10. Connecting plates 56, 56
The connection state to the connection portions 40, 40 is shielded by the connection portions 40 and cannot be seen from the outside, so that the appearance is not impaired as in the related art, and is more than that in the case of using the above-described conventional lock mechanism. Also the seat device 10
Can be reduced in weight and cost.

When connecting the seat device 10 to the lift device 50, the positioning pins 105, 105 attached to the rear frame 24 of the seat device 10 are inserted into the positioning holes 59a, 59a provided in the receiving frame 59 of the lift device 50. Since the seat device 10 is inserted, the position of the seat device 10 with respect to the lift-up device 50 is also prevented, and when a large impact is applied to the vehicle, the seat device 10 is not inserted.
Is reliably prevented from separating from the lift-up device 50.

Various embodiments can be added to the embodiment exemplified above. For example, FIGS. 13 and 14 show a configuration in which a connection hook 120 is added to make the connection state of the connection plate 56 of the lift-up device 50 to the connection portion 40 of the seat device 10 stronger. A description of the same points as in the above-described configuration will be omitted. The connecting hook 120 is connected to the lift-up device 50.
The link arms 55a are attached to the front ends of the front (lower in FIG. 13) link arms 55a, 55a of the two four-bar link mechanisms 55, 55. Both connecting hooks 120, 120 are attached in a direction that curves upward as shown. Connecting holes 44a are cut out in the lower front plates 44, 44 of both connecting portions 40, 40 of the seat device 10 corresponding to the connecting hooks 120, 120, respectively.

After the connecting plate 56 is inserted into the connecting portions 40 of the seat device 10 and the seat device 10 is connected to the lift-up device 50, the four-joint link mechanisms 55 are operated in the upright direction. When the seat device 10 is moved to the indoor side, the link arm 55a rotates in the upright direction, so that the connection hook 120 is inserted into the connection hole 44a so as to turn from above. As shown in FIG.
Link arms 55a, 55 of the four-bar linkage 55, 55
When the lift-up device 50 stops when the b is almost upright, the connecting hook 120 is inserted so as to be hooked in the connecting hole 44a, and thereby the connecting portion 40 of the seat device 10 is connected to the link arm 55a. Directly engaged. Thus, the connecting plates 56, 56 and the link arm 5
5a and 55a are both connected portions 40,
Since the seat device 10 is engaged with the lift device 50, the seat device 10 is more firmly locked with the lift-up device 50, so that, for example, when a large inertial force is applied to the seat device 10 while the vehicle is traveling. Therefore, the forward movement of the seat device 10 and the falling off from the lift-up device 50 can be prevented more reliably.

Further, a seat connection confirmation system for confirming whether or not the seat device 10 is securely connected to the lift-up device 50 can be added to the vehicle lift-up seat 1 exemplified above. . The details of the sheet connection confirmation system are shown in FIG.
A description of the same points as in the above-described configuration will be omitted.
The seat connection confirmation system includes a lift-up device 50.
A lift sensor 130 for detecting the position (height) of the connecting plates 56, 56, a sheet confirmation sensor 140 for confirming the presence of the seat device 10, and both connecting plates 56, 56 are suitable for the seat device 10. Is provided with a connection confirmation sensor 150 for detecting whether or not the connection has been made.

The lift sensor 130 is a limit switch which is always on, and is attached to one side wall 54 c of the swing base 54 via a bracket 131. The bracket 131 is connected to the rear link arm 55b.
Is mounted so as to be rotatable up and down around a connection shaft 57 for rotatably supporting. A tension spring 132 is interposed between the bracket 131 and the side wall 54c. Therefore, the bracket 131 is urged clockwise in FIG. On the other hand, a detection bar 134 is attached via a bracket 133 to a position near the connection shaft 57 of the rear link arm 55b.
The detection bar 134 can adjust its axial position. The detection bar 134 is rotated upward by a fixed angle θ from a substantially horizontal position (a position shown in FIG. 15) in which the rear link arm 55b is tilted outward and the connecting plate 56 is positioned at the lowest position. In the range, the position of the lift sensor 130 in the axial direction is appropriately set so as to push down the operator of the lift sensor 130 downward. When the operator is pushed down, the lift sensor 130 is turned off. When the lower end of the detection bar 134 is separated from the operator and the pushing down of the operator is released, the lift sensor 130 is released.
Turns on. The set angle θ is set to
0 is set to a rising angle of the link arm 55b required to slightly lift the ground from the ground to fold the wheels 60 and 70.

Next, the sheet confirmation sensor 140 is a reflection type photoelectric sensor, and is attached to the front end of the swing base 54 via the bracket 141. On the other hand, a reflector 142 for reflecting the light emitted from the sheet confirmation sensor 140 is attached to the sheet device 10 side. The reflector 142 is attached to the rear surface of the rear frame 24 of the seat frame 20. When the light emitted from the sheet confirmation sensor 140 is reflected by the reflector 142 and received again by the sheet confirmation sensor 140, the sheet confirmation sensor 140 is turned on. When the sheet confirmation sensor 140 is turned on, the presence of the sheet device 10 is confirmed. When the seat device 10 is not at an appropriate position relative to the lift-up device 50, the seat confirmation sensor 1
The light emitted from the light source 40 is not reflected by the reflector 142 or is not received again by the sheet confirmation sensor 140 even if it is reflected, so that the sheet confirmation sensor 140 is not turned on. It is determined that it does not exist at the proper position. Also, when the lift-up device 50 is stored in the passenger compartment while the seat device 10 is used as a wheelchair, the seat confirmation sensor 140 is not turned on, so that it is determined that the seat device 10 does not exist.

Next, the connection confirmation sensor 150 is an always-on type limit switch, similar to the lift sensor 130, and is attached via a bracket 151 to a receiving frame 59 connecting the lower ends of the connection plates 56, 56. Have been.
With the receiving frame 59 positioned below the rear frame 24 of the seat frame 20 as described above, the lift-up device 5
If the relative position of the seat device 10 is appropriate, the receiving frame 59 is superimposed on the lower surface of the rear frame 24, whereby the operator of the connection confirmation sensor 150 is pushed down. The connection confirmation sensor 150 turns off. Since the relative position of the sheet device 10 with respect to the lift-up device 50 was not appropriate, the positioning pin 1
If the holes 05 and 105 are not inserted into the positioning holes 59a and 59a, the receiving frame 59 does not come into contact with the rear frame 24 of the seat frame 20, so that the connection confirmation sensor 150 does not turn off.

Next, FIG. 16 shows each of the sensors 130 and 14.
Seat device 1 by combination of on and off of 0,150
This shows a situation where the connection state between 0 and the lift-up device 50 is determined, and the power supply to the electric cylinder 90 is turned on / off based on this. That is, a drive circuit is configured such that when all of the lift sensor 130, the seat confirmation sensor 140, and the seat connection confirmation sensor 150 are turned on, power supply to the electric cylinder 90 as a drive source of the lift-up device 50 is stopped. If any of these conditions is not satisfied, the sensor is turned off, the power supply to the electric cylinder 90 is started or continued, and the drive circuit of the lift-up device 50 operates on the operating side.

That is, the seat connection confirmation system operates as follows when connecting the seat device 10 to the lift-up device 50. First, the lift-up device 50
Since the seat device 10 does not exist, the lift-up device 50 can be driven, and the two link arms 55a, 55b of the lift-up device 50 are tilted to the outside of the vehicle so that the connecting plates 56, 56 are positioned at the lowest position. When the lift-up device 50 is turned off (the lift sensor 130 is turned off),
Is set to a predetermined position. Next, the lift-up device 50 is activated to the upright side. As a result, the two connecting plates 56 are connected to the connecting portion 4 of the seat device 10.
When the receiving frame 59 is properly connected to the positions 0 and 40 and the receiving frame 59 is overlapped along the rear frame 24 of the seat frame 20, the connection confirmation sensor 150 is turned off. At the same time, the seat confirmation sensor 140 is turned on because the seat device 10 is properly connected. As described above, when the connection confirmation sensor 150 is turned off and the sheet confirmation sensor 140 is turned on, it is confirmed that the seat device 10 is properly connected to the lift-up device 50. Therefore, in this state, even when the lift sensor 130 is turned on when the rear link arm 55b is rotated upward by the set angle θ, the electric cylinder 90 does not stop, and the lift-up device 50 normally operates to the end. Thus, the seat device 10 can be lifted up indoors.

On the other hand, the presence of the seat device 10 was confirmed by turning on the seat confirmation sensor 140, but the connection was not confirmed because the two coupling plates 56, 56 were not properly coupled after the lift-up device 50 was started. If the sensor 150 is not turned off, the lift sensor 130 is turned on when the rear link arm 55b rotates upward by the set angle θ, and at this time, the drive circuit of the lift-up device 50 is cut off and the electric cylinder is turned off. 90 stops, and thus the seating device 10
Lift-up operation is stopped. From this, regarding the timing of turning on the lift sensor 130, if the seat device 10 is normally connected, the wheels 60, 70
Connecting plates 56 and 5 that are slightly raised from the ground
The height of the detection bar 134 is preferably adjusted so that the lift sensor 130 is turned on at such a timing in this example.

According to the seat connection confirming system configured as described above, if the seat device 10 is confirmed to be present, but the connection to the lift-up device 50 is incomplete, the seat device 10 is slightly raised. Since the lift-up device 50 is stopped, it is possible to prevent the seat device 10 from being lifted while the connection is incomplete, thereby preventing the seat device 10 from being inadvertently dropped. In addition, by sounding an alarm buzzer when the drive circuit is shut off, it is possible to notify a seated person, a caregiver, or the like that the connection state is incomplete and to alert the user.

Next, in the operation of connecting the sheet device 10 to the lift-up device 50, the positioning pins 105, 105 of the sheet device 10 are securely inserted into the positioning holes 59a, 59a of the lift-up device 50. Positioning assisting device 160 can be added.
For example, since the road surface is inclined, the lift-up device 50 (the vehicle side) is inclined with respect to the seat device 10,
As a result, as shown in FIG. 17, when the positioning hole 59a is displaced toward the sheet device 10 side (left side in the figure) with respect to the tip of the positioning pin 105, the lift-up device 50 may be raised as it is. , Positioning pin 1
Since the seat 05 is not inserted into the positioning hole 59a, the seat device 10 cannot be connected to the lift-up device 50. In such a case, by additionally setting the positioning assisting device 160, the positioning pin 105 can be reliably inserted into the positioning hole 59a.

As shown in FIG. 18, the positioning assisting device 160 includes a regulating pin 1 attached to the positioning pin 105.
61 and a restriction block 162 attached to the receiving frame 59 of the lift-up device 50. Regulation pin 161
Are directly fixed to the positioning pins 105 in a state of protruding sideways at right angles as shown in the figure. The restriction pin 161 corresponds to the positioning assisting member described in the claims. The restriction block 162 has a wedge shape having an arc-shaped guide surface 162a, and is fixed on the upper surface of the receiving frame 59 near the positioning hole 59a.
The guide surface 162a corresponds to a positioning assisting surface described in the claims. In addition, a step 162b is formed on one side of the regulating block 162.
2b and the positioning block 10
The restriction block 162 is arranged at a position as close as possible to the positioning hole 59a while avoiding interference with the positioning block 59.

The positioning assist device 16 constructed as described above
According to FIG. 0, when the seat device 10 is retracted toward the lift-up device 50 so as to be connected to the lift-up device 50, the restriction pin 161 first comes into contact with the guide surface 162 a of the restriction block 162. After that, the lift-up device 50
Is actuated to the upright side to move the two connecting plates 56, 56 upward, the two connecting plates 56, 56 are fitted into the connecting portions 40 of the seat device 10, respectively. At the same time, since the receiving frame 59 moves upward, the regulating pin 161 is relatively displaced to the lower side of the guide surface 162a while slidingly contacting the guide surface 162a. Since the guide surface 162a is inclined downward in the direction of approaching the sheet device 10 with respect to the upward movement direction of the receiving frame 59, the tip of the regulating pin 161 and thus the positioning pin 105 is displaced toward the sheet device 10. While approaching the positioning hole 59a.

Therefore, as described above, the sheet device 10
Is carried out on a slope, the lift-up device 50 (vehicle side) is at a lower position than the seat device 10, and as a result, the positioning hole 59a is positioned on the seat device 10 side with respect to the tip of the positioning pin 105. Even if it is misaligned, the position of the regulating pin 161 is corrected toward the sheet device 10 by the guide surface 162a, whereby the positioning pin 161 can be reliably inserted into the positioning hole 59a. As described above, since the positioning pins 161 are securely inserted into the positioning holes 59a even on an inclined ground, the connection operation of the seat device 10 to the lift-up device 50 is reliably performed, and as a result, the lift-up sheet 1 is The usable range can be expanded.

Various modifications can be made to the positioning assisting device 160 exemplified above. For example, the positioning assisting surface (guide surface 162a) having an arc shape is illustrated, but the positioning assisting surface may be a flat inclined surface. Therefore,
Instead of the regulating block 162, a flat plate is fixed in an inclined state,
The upper surface of the flat plate may be used as a positioning auxiliary surface (guide surface). In addition, although the regulation pin 161 is illustrated as the positioning assisting member and the configuration in which the regulation pin 161 is attached to the positioning pin 105 is illustrated, a roller or a block may be used instead of the regulation pin 161 and the positioning pin 161 may be used. A portion other than the positioning pin 105 (for example, the lower surface of the rear frame 24) is attached to the auxiliary member (the regulating pin 161) via a bracket or the like.
It is good also as a structure attached to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle lift-up seat according to an embodiment of the present invention. This figure shows a state where the seat device is separated from the lift-up device.

FIG. 2 is a perspective view showing a vehicle lift-up seat according to the embodiment of the present invention. This figure shows a state in which the seat device is connected to the lift-up device.

FIG. 3 is an overall perspective view of the seat device. In the figure, the illustration of the seat body is omitted.

FIG. 4 is a side view of the seat device. This figure shows how the front and rear wheels are folded.

FIG. 5 is a side view showing a manner in which a front wheel is changed in posture. This figure shows a stage in which the collar of the posture regulation guide abuts on the front wheels in the vertical posture.

FIG. 6 is a plan view showing a manner in which a front wheel is changed in posture. This figure shows a stage in which the collar of the posture regulation guide abuts on the front wheels in the vertical posture.

FIG. 7 is a side view showing a manner in which a front wheel is changed in posture. This figure shows a state in which the front wheels are in a horizontal posture.

FIG. 8 is a plan view showing a manner in which a front wheel is changed in posture. This figure shows a state in which the front wheels are in a horizontal posture.

FIG. 9 is a perspective view of the vicinity of a connection portion of the seat device and the vicinity of a connection plate of the lift-up device.

FIG. 10 is a side view showing a state where a connecting plate is connected to the connecting portion.

FIG. 11 is a perspective view showing a state in which the rear frame of the seat frame is connected to the receiving frame of the lift-up device, in which the male side of the power connector is connected to the female side, and the positioning pin is inserted into the positioning hole. It is a figure showing a state.

FIG. 12 is a perspective view of a lift-up device.

FIG. 13 is a perspective view of the vicinity of a connection portion of the seat device and the vicinity of a connection plate of the lift-up device when a connection hook is added to the lift-up device.

FIG. 14 is a side view showing an engagement state of the connection hook with the lock hole when the connection hook is added to the lift-up device.

FIG. 15 is a side view of a vehicle lift-up seat provided with a seat connection confirmation system.

FIG. 16 is a diagram showing an operation state of each sensor in the seat connection confirmation system.

FIG. 17 is a side view showing a positional relationship between a positioning pin and a positioning hole when the lift-up device side is inclined with respect to the seat device.

FIG. 18 is a perspective view of a positioning assist device and its periphery.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lift-up seat for vehicles 10 ... Seat device 11 ... Seat main body 20 ... Seat frame 35 ... Interlocking mechanism 40 ... Connection part 45 ... Lock bar 50 ... Lift-up device 53 ... Rotating disk 54 ... Swing base 55 ... Four-bar link mechanism 56 ... Connecting plate, 56d ... Lock recess 58 ... Lock claw 59 ... Receiving frame, 59a ... Positioning hole 60 ... Front wheel 70 ... Rear wheel 71 ... Rear wheel stay 77 ... Position regulation guide, 77d ... Color 80 ... Moving frame, 83 ... Screw shaft 85 ... Electric motor 86 ... Drive device 90 ... Electric cylinder 91 ... Front wheel stay 105 ... Positioning pin 110 ... Power supply connector, 110a ... Male side, 110b ...
Female side C: caster shaft 120: connection hook 130: lift sensor 140: sheet confirmation sensor 150: connection confirmation sensor 160: positioning assist device 161: regulating pin (positioning assisting member) 162a: guide surface (positioning assisting surface)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI B60N 2/24 B60N 2/24 B60P 3/00 B60P 3/00 A (72) Inventor Tomoyuki Kuroda Kanayama, Ichiriyama-cho, Kariya City, Aichi Prefecture 100 Toyota Auto Body Co., Ltd. (72) Inventor Takeshi Toda 100, Ichiriyama-cho Kanayama, Kariya City, Aichi Prefecture Toyota Auto Body Co., Ltd. (56) References JP-A-62-295660 (JP, A) 53-19954 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61G 3/00-3/00 503 A61G 5/02 503-504 B60N 2/00-2/24 B60P 3 / 00 B62B 7/06

Claims (4)

(57) [Claims] And 1. A seat assembly having front and rear wheels can be folded Ri seat body and folded, is installed in the vehicle interior, vehicle the seat apparatus while by connecting the seat device holds the seating posture of the seat body A lift device for moving between the room and the outside of the vehicle, wherein the seat device moves into the vehicle room and can be used as a seat for the vehicle room, and moves to the outside of the vehicle room; disconnect and a vehicle lift-up sheets and available configurations alone as a wheelchair, while providing a connecting portion of the box-shape opened downward to the seat device, said the tip of the link arm of the lift-up device inserted into the connecting portion with the rising operation of the lift-up device
And a connecting plate for receiving the connection.
The lifting operation of the lift-up device after it has been inserted into the
Functioning, and upward of the connecting portion with respect to the connecting plate.
Lift-up seat for vehicles equipped with a stopper block that regulates the displacement of the vehicle. 2. The vehicle lift-up seat according to claim 1, wherein the connecting portion has a lock bar along a width direction of the connecting portion, and the connecting plate has a lock recess for inserting the lock bar. When the seat device is accommodated in the vehicle cabin, a stopper block provided on the link arm is positioned on the opening side of the lock concave portion, and the lock bar is prevented from coming out of the lock concave portion. . 3. The vehicle lift-up seat according to claim 1, wherein a positioning pin is provided in the seat device.
A lift-up seat for a vehicle, wherein a positioning hole is provided in the lift-up device, and the positioning pin is inserted into the positioning hole to position the seat device with respect to the lift-up device. 4. The vehicle lift-up seat according to claim 3, wherein a positioning assisting member is provided on the seat device, a positioning assisting surface is provided on the lift-up device, and the positioning assisting member slides on the positioning assisting surface. A lift-up seat for a vehicle configured to contact and guide the tip of a positioning pin to a positioning hole.