JP3358534B2 - 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 referred to as a "wheelchair user") to easily get on and off a vehicle.

[0002]

2. Description of the Related Art Conventionally, this type of vehicle seat is configured such that a wheelchair user moves between a wheelchair and a seat body to get on and off the vehicle by moving a seat body in a vehicle room to the outside. According to this, getting into the room or moving from the room to the outside can be performed by moving the seat body (lift-up), and the wheelchair user himself can move between the vehicle room and the outside. Since there is no need to perform this operation, getting on and off the vehicle can be performed easily, and the burden on the caregiver can be significantly reduced.

[0003]

However, the movement between the seat body and the wheelchair outside the vehicle compartment still needs to be performed by the wheelchair user himself with the assistance of the caregiver. Effort was not eliminated. Therefore, an object of the present invention is to provide a vehicle lift-up seat that does not need to perform a transfer operation between a seat body and a wheelchair even outside a vehicle cabin.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention is not limited to the above.
Vehicle lift-up seat having the configuration described in each claim.
And According to the vehicle lift-up seat according to the first aspect, the wheelchair user can get into the vehicle while sitting in the wheelchair, and after coming out of the room while sitting in the vehicle interior, lifts the wheelchair from the lift-up mechanism. Can be separated and used as a normal wheelchair. Like this wheelchair
The child is singly detached from the lift-up mechanism
Since it can be used, it is possible to get on and off the vehicle while sitting on the wheelchair for outdoor movement. Therefore, it is necessary to completely move between the vehicle seat body and the wheelchair outside the room when getting on and off the vehicle as in the conventional case. As a result, the burden on wheelchair users and their caregivers can be greatly reduced. In particular, not only the seat body but also frames and wheels
The entire wheelchair including the wheelchair is connected to the lift-up mechanism to move between the vehicle interior and the outdoor, so that the wheelchair user and the caregiver need only perform the connection operation of the lift-up mechanism. There is no need to perform any operation or the like for separating the seating portion from the frame side, and this can also reduce the burden on the caregiver and the like. Moreover, when designed to move the only seat part separates the frame side (seat body), but the separated frame side must be loaded separately vehicle, according to the configuration of claim 1, wherein the sheet main body and
Since the frame side is moved integrally and mounted in the vehicle cabin, there is no need to take the trouble as described above,
Also in this respect, the burden on the caregiver and the like can be reduced, and the usability of the lift-up sheet can be improved.

[0005] In addition, the wheelchair is folded with its wheels folded,
In particular, it is possible to move the wheelchair into the vehicle cabin with the height direction being more compact, so that the wheelchair can be installed at a lower position in the vehicle cabin, for example, at approximately the same height as other seats. Since the wheelchair user can sit at almost the same height as other occupants, the wheelchair user does not have a special feeling (for example, feeling of alienation of being treated specially) in the vehicle cabin. To maintain the sitting posture means to maintain the posture on the road surface, and the wheelchair user sitting in the wheelchair can easily maintain the sitting posture without falling down without any fall. Say). In addition, being used alone means at least a seating portion (seat main body) and a wheel for movement, and means a state that can be used as a normal wheelchair.

Furthermore, according to the lift-up vehicle seat according to claim 1, connected to the seat frame 20 recesses 4
0, 40 are provided, and are connected to the two connection recesses 40, 40.
Since the plates 56 are connected, the seat back
Reclining function can be used. Claim
According to the vehicle lift-up seat described in 2, the pair of left and right four-bar linkages provided corresponding to the connection recesses provided on both sides of the wheelchair integrally move up and down, so that the wheelchair is connected to the lift-up device. Be separated. According to the vehicle lift-up seat according to the third aspect, the wheelchair connected to the lift-up device via the four-bar linkage is rotated between a position facing the front of the vehicle and a position facing the door opening side. Can be. According to the vehicle lift-up seat according to claim 4 , when the wheelchair is retracted, the connection plate of the lift-up device is inserted into the connection recess, and then the connection plate is raised by the raising operation of the four-bar linkage,
The wheelchair is connected to the connecting plate in a state where the forward displacement of the wheelchair is prevented. According to the lift-up seat for a vehicle according to the fifth aspect , the four-bar link mechanism includes two link arms, a vehicle interior side, and a connecting plate.

According to the vehicle lift-up seat according to the sixth aspect of the invention , the wheelchair is retracted, the connection plate of the lift-up device is inserted into the connection recess, and then the connection plate is raised by the operation of the lift-up device. A wheelchair is connected to the lift-up device. By operating the lift-up device in this connected state, the wheelchair can be moved toward the vehicle interior while maintaining the sitting posture. Conversely, after moving the wheelchair to the outside of the vehicle compartment while maintaining its sitting posture, the wheelchair can be separated from the lift-up device by separating the connecting plate from the connecting recess, whereby the wheelchair can be used alone as a wheelchair. can do.
As described above, the vehicle lift-up seat according to the sixth aspect also has the same operation and effect as those of the configuration according to the first embodiment. According to the vehicle lift-up seat according to the seventh aspect, in the vehicle lift-up sheet according to the first or sixth aspect , the wheelchair is configured by inserting the flat-plate-shaped connecting plate into the connecting concave portion having the U-shaped cross section. It is connected to a lift-up device.

According to the vehicle lift-up seat of the eighth aspect, the wheelchair is connected to the lift-up mechanism by inserting the upper end of the connecting plate into the hook recess of the wheelchair from below. As described above, the connection can be performed simply by hooking the connection plate into the recess, and other special connection operation is not required. Therefore, the handling is easy and even a woman or the like can easily operate. According to the vehicle lift-up seat according to the ninth aspect , the lower portion of the connecting plate is fixed by engaging the distal end portion (upper end portion) of the lock bar that has been moved upward, whereby the wheelchair is connected via the connecting plate. And firmly connected to the lift-up mechanism. Note that, when the lock bar is moved downward, the distal end portion is detached from the lower portion of the connecting plate, and the lower portion of the connecting plate is released from being fixed.

[0009] According to the vehicle lift sheet according to claim 10, wherein, if folded wheelchair wheels are automatically fixed bottom of the connecting plate, it is possible to perform two operations in one operation, lift the vehicle The usability of the up sheet is improved. First, the wheelchair is temporarily connected to the lift-up mechanism by operating the lift-up mechanism to engage the connection plate with the connection recess of the wheelchair. In this temporarily connected state, the lift-up mechanism is operated to the indoor retraction side so that the wheelchair is slightly lifted off the ground, thereby making the wheels foldable. When the wheel is folded in this state, the lock bar moves upward in conjunction with this, and the lower portion of the connecting plate is fixed at this stage. With the connecting plate fixed in this way and the wheelchair firmly connected to the lift-up mechanism, the wheelchair is lifted indoors by the operation of the lift-up mechanism. When the wheel is taken out, the lock bar moves down in conjunction with this, whereby the engagement state of the lock bar with the lower portion of the connecting plate is released, thereby further improving the usability. .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG. FIG. 1 shows a vehicle lift-up seat 1 according to the present embodiment. The lift-up seat 1 includes a wheelchair 10 and a lift-up mechanism 50.
It has. The wheelchair 10 has a seat cushion 11a.
And a seat body 11 having a seat back 11b, a substantially L-shaped seat frame 20 for receiving the seat body 11, and a substantially L-shaped seat frame attached along the left and right sides of the seat frame 20. Cover body 30, 3
0 is provided. A footrest 21 is attached to a front portion of the seat frame 20 via support arms 21a, 21a. Also, the two support arms 21a, 21a
A pair of left and right front wheels 22, 22 are attached to the front end of the vehicle. The front wheels 22, 22 are respectively supported by support shafts 22a.
Front wheel stay 22b mounted to be rotatable up and down through
It is rotatably attached to the tip of. As shown by a two-dot chain line in FIG. 3, the front wheels 22, 22 respectively rotate the front wheel stays 22b upward and store (fold) the wheel storage portions 30a provided at the front portion of the cover body 30.
On the other hand, as shown by the solid line in FIG. 3, the front wheel stay 22b is turned downward to be in contact with the ground to function as a running wheel.

A pair of left and right rear wheels 23, 23 are attached to the rear lower surface of the seat frame 20. As shown in FIG. 3, the rear wheels 23 are also rotatably mounted on the front end of a rear wheel stay 23b which is rotatably mounted on the lower surface of the frame 20 via a support shaft 23a. The rear wheel stay 23b can be accommodated in the wheel accommodating portion 30a of the cover body 30 by rotating the rear wheel stay 23b upward as in the case of 22, 22, and the traveling wheel can be rotated by rotating the rear wheel stay 23b downward to contact the ground. Function as In FIG. 3, the state where the rear wheel 23 is housed in the wheel housing 30a is indicated by a two-dot chain line, and the state where the rear wheel 23 is taken out and grounded is indicated by a solid line. Although not shown, a tension spring is interposed in the front wheel stay 22b and the rear wheel stay 23b so as to exert a biasing force in both the storing direction and the removing direction, whereby the front wheels 22, 22 and Both rear wheels 23,2
Numerals 3 are held in a state where they are housed in the wheel housing portions 30a, respectively, and are held at a take-out position. As shown in FIG. 3, a cushion bar 24 having elastic rubber wrapped around it is attached to the rear side (right side in the figure) of the support shaft 23a of both rear wheels 23. , 23 can absorb the shock transmitted from the road surface to the rear wheels 23, 23 by abutting the rear wheel stays 23b, 23b. That is, the cushion bar 24 functions as a shock absorber.

Next, the left and right cover bodies 30, 30 include:
A rising portion 30b is provided along a side portion of the seat back 11b, and a connection recess 40 that functions when the wheelchair 10 is connected to the link mechanism 50 is disposed inside the rising portion 30b. I have. The two connecting recesses 40 are integrally formed on the side surface of the seat frame 20 and each have a vertically long curved shape and a U-shaped cross section that opens rearward as shown in FIG. ing. As shown in FIG. 3 and FIG. 5, a hooking concave portion 40b is formed in the upper portion of the connecting concave portions 40, 40, and has a folded portion 40a which opens downward. Lock bars 45 for locking the connection state of the lift-up mechanism 50 to the wheelchair 10 are attached to both sides of the seat frame 20 and below the connection recess 40. These two lock bars 4
As shown in FIG. 6, the holders 5 and 45 are supported by the holding brackets 46 so as to be vertically movable. A vertically long guide groove 46a is formed in the holding bracket 46, and a lock bar 45 is formed in the guide groove 46a.
The guide pin 45a attached to is inserted. For this reason, the lock bar 45 has the guide pin 45 a
It can be moved up and down within the range that can be moved within a.

A lock holding portion 4 cut in a substantially right angle direction is formed above the guide groove 46a of the holding bracket 46.
6b is provided. After the lock bar 45 is moved upward, the guide bar 45 is rotated about 90 degrees around the axis.
a enters the lock holding portion 46b from the guide groove 46a, whereby the lock bar 45 can be held at the upper end lock position. Lock bar 4 as described later
By holding the upper end 5 at the upper end lock position, the lower end 56d of the connecting plate 56 of the lift-up mechanism 50 described below can be immovably fixed. it can. To release this locked state, the lock bar 45 is rotated in the reverse direction to move the guide pin 45a from the lock holding portion 46b into the guide groove 46a, and then the lock bar 45 is moved downward by its own weight. I just need. As shown in FIGS. 3 and 6, the upper end 45 b of the lock bar 45 is formed in a conical shape in accordance with the shape of the lower end 56 d of the connecting plate 56.
Further, the lower end of the lock bar 45 is bent into an L-shape, which facilitates the rotation of the lock bar 45 by 90 degrees as described above. The connection and disconnection operations of the lift-up mechanism 50 will be further described later. A pair of armrests 11c, 1 are provided on left and right sides of the seat back 11b.
1c is mounted so as to be rotatable up and down so as to be stored or taken out. A headrest 11d is mounted on the upper part of the seat back 11b. Further, as shown in FIGS. 1 and 2, a handle 12 for a caregiver is attached to a rear surface of the seat frame 20. The handle 12 is formed by bending a pipe material into a U-shape, and is attached across the left and right sides of the seat back 11b.
A brake lever 12a for operating a rear wheel brake is attached to a side portion of the handle 12.
In FIG. 3, the illustration of the handle 12 is omitted.

Next, the lift-up mechanism 50 provided in the vehicle compartment will be described. This lift-up mechanism 50
Slide rails 51 and 5 installed on floor F in the vehicle interior
Main base 52 movable in the front-rear direction of the vehicle 1
And a turntable 53 mounted on the main base 52
And a swing base 54 mounted on the rotating plate 53
And a pair of left and right four-joint link mechanisms 55, 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 includes an inner ring 53a and an outer ring 53.
The outer ring 53b is fixed to the main base 52, and the inner ring 53a is fixed to the lower surface of the swing base 54. The turntable 53 allows the swing base 54 to move approximately 90 degrees between the forward direction of the vehicle and the direction toward the vehicle side (the door opening D side, see FIGS. 1 and 2).
It is supported rotatable by degrees. This swing base 54
Are held by a rotation lock mechanism (not shown) at two positions toward the front of the vehicle and toward the vehicle.

As shown in FIG. 9 (not shown in FIG. 7), an arc-shaped pinion gear 54a is attached to the swing base 54, and a rack 51a that meshes with the pinion gear 54a has a door opening side (see FIG. 9). 8 is mounted on the floor F along the slide rail 51).
And the sliding operation of the main base 52 are performed in conjunction with each other. That is, when the wheelchair 10 that has been moved into the room is started to rotate from the front of the vehicle toward the door opening D, the pinion gear 54a partially lacks teeth as shown in FIG. When the wheelchair 10 is rotated by a certain angle, the pinion gear 54a
The rotation of the swing base 54 and the sliding movement of the main base 52 forward are performed in conjunction with each other, so that the wheelchair 10 moves forward while rotating toward the door opening D side. According to this interlocking mechanism, it is possible to move the wheelchair 10 to an appropriate position for swinging the wheelchair to the outside of the vehicle only by rotating without performing a sliding operation forward of the vehicle, thereby reducing the burden on the caregiver. Can be. Conversely, the same applies to the case where the wheelchair 10 is moved from the outside of the vehicle to the inside of the room, and the wheelchair 10 can be slid to the rear of the vehicle only by a rotation operation toward the front of the vehicle. By sliding the wheelchair 10 toward the rear of the vehicle, it is possible to widely secure the feet of the wheelchair user.

The two four-link mechanisms 55, 55 have two link arms 55a, 55b, respectively, and the lower ends of the front link arms 55a, 55a have support shafts 55c, 55c, respectively.
It is rotatably connected to the side of the swing base 54 up and down through 55c. 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, and the two link arms 55b, 55b are connected to the swing base 54 via the connecting shaft 57. Are connected so as to be rotatable up and down. The connecting shaft 5
7, an electric cylinder 90 is connected as a drive source for swinging the two four-bar linkages 55, 55 to the outside of the room. This electric cylinder 90 will be described later. Connecting plates 56 are attached to the tips of the two four-bar linkages 55, 55, respectively. These two connecting plates 56, 5
The link arms 55a and 55b in front and rear of the
It is rotatably connected via 6a and 56b. As shown in FIGS. 3 and 4, each of the connecting plates 56 has a substantially flat plate shape which can be inserted into the connecting recess 40 of the wheelchair 10 with almost no gap, and the upper end 56c thereof is as shown in FIG. Has a shape that can be fitted into the hooking recess 40b of the connecting recess 40 without any gap. When the upper end portion 56c of the connecting plate 56 is fitted into the hooking concave portion 40b, displacement of the upper end portion 56c in the detaching direction (rightward in FIG. 3) is prevented by the folded portion 40a. On the other hand, the lower end 56 d of the connecting plate 56 is
5b is abutted to prevent the lower end portion 56d from being displaced in the detaching direction (rightward in FIG. 3), thereby preventing the connecting plate 56 from being detached from the connecting concave portion 40, and thus the wheelchair 10 is lifted up. It is connected to the mechanism 50.

Next, the details of the electric cylinder 90 are shown in FIG.
Is shown in At the approximate center of the connecting shaft 57, two L-shaped support arms 59, 59 are fixed, and an electric cylinder 90 is mounted via the two support arms 59, 59. The electric cylinder 90 includes an electric motor 91
, A gear box 92 and a ball screw 94. When the electric motor 91 is started, the screw shaft 94 a rotates with the torque amplified by the gear box 92, whereby the screw shaft 94 a is screw-fitted to the screw shaft 94 a. The block-shaped nut 94b moves in the axial direction of the screw shaft 94a. The screw shaft 94a is rotatably supported by a cylindrical screw shaft case 93 provided on the gear box 92, and the screw shaft case 93 is provided between the distal ends of the two support arms 59, 59. , 59a so as to be rotatable up and down. On the other hand, nut 9
Plate-like brackets 95, 95 are attached to both side surfaces of 4b, and the ends of both brackets 95, 95 are connected via pivots 96 to the vicinity of the front end of the bottom surface of the swing base 54 so as to be rotatable up and down. ing.

According to the electric cylinder 90 constructed as described above, when the electric motor 91 is started in the normal rotation direction with the wheelchair 10 facing the door opening D side by the swing base 54, the screw shaft 94a rotates. As a result, the nut 94b relatively moves to the tip end side of the screw shaft 94a. Nut 94
b is fixed between the support arms 95, 95 that rotate vertically through the support shafts 96, 96, and consequently the screw shaft 94a rotates axially rearward (upward in FIG. 8) while rotating. Moving. When the screw shaft 94a moves backward, the screw shaft case 93 integrally moves backward, so that the support arms 59, 59 and the connecting bar 57 rotate in the direction of arrow A in FIG. 55b, 5
5b and, consequently, the two four-bar linkages 55, 55 are tilted in the direction of the arrow C (outside of the room) in FIG. By this swinging operation, the connecting plates 56, 56
Moves outside through the door opening D. On the other hand, when the electric motor 91 is rotated in the reverse direction, the screw shaft 94a moves axially forward (downward in FIG. 8), and the connecting shaft 57 moves in the direction indicated by the arrow B in FIG.
In the direction of rotation, whereby the two four-link mechanism 55, 55
Is turned in the direction of arrow D (indoor side) in FIG.
6, 56 are returned to the indoor side.

The lift-up mechanism 50 thus constructed
Is connected or disconnected from the wheelchair 10 as follows. While the following operations are performed, the wheelchair user may remain seated on the seat body 11 and move to a predetermined position in the vehicle compartment while seated. FIG. 1 shows a state in which the wheelchair 10 is separated from the lift-up mechanism 50. In this state, in the lift-up mechanism 50, the main base 52 has moved to the front end position of the slide rails 51, 51, and the swing base 54 is directed to the outside of the room. Further, both four-link mechanisms 55, 5
5 is in a state of being tilted to the swing-out side. On the other hand, in the wheelchair 10, the front wheels 22, 22 and the rear wheels 23, 2
3 is taken out of the wheel storage portion 30a and the wheelchair 1
0 can be used alone, that is, used to travel on the street as a normal wheelchair. The wheelchair user remains seated on the seat body 11 as described above. In order to connect the wheelchair 10 to the lift-up mechanism 50 from such a state, the wheelchair 10 is approached backward to the lift-up mechanism 50 and
0 are connected to the connecting recesses 40 of the wheelchair 10.
Fit into 40. Thereafter, the electric motor 91 of the electric cylinder 90 is reversely rotated to move the four-bar linkages 55, 55 slightly in the upright direction.
The upper end 56c of 56 is fitted into the hooking recesses 40b, 40b of the connecting recesses 40, 40.

Next, the lock bars 45, 45 are raised to bring the upper end 45b thereof into contact with the lower end 56d of the connecting plate 56, and are rotated by 90 degrees around the rear axis to guide the guide pins 45a.
Into the lock holding portion 46b, thereby holding the lock bars 45, 45 at the lock position at the upper end. With the above operation, the upper end 56c of the connecting plate 56 is restrained by the hooking recess 40b, and the lower end 56d is
5, the connecting plate 56 is fixed to the rear of the wheelchair 10. After the lift-up mechanism 50 is connected to the wheelchair 10 in this way, the electric cylinder 90 of the lift-up mechanism 50 is activated to move the four-joint link mechanisms 55, 55 to the upright side (indoor side).
As a result, the wheelchair 10 rises from the ground. At this stage, the lift-up mechanism 50 is temporarily stopped, and the front wheels 22, 22 and the rear wheels 23, 23 are moved to the wheel storage portions 30a, 30a.
30a. This state is shown in FIG. After storing the front wheels 22, 22, and the rear wheels 23, 23, the lift-up mechanism 50 is operated again to the indoor side to move the connected wheelchair 10 indoors. In FIG. 7, the electric cylinder 90 is stopped and the lift-up mechanism 50 is stopped at the stage where both the four-bar linkages 55, 55 have moved to the standing position and the wheelchair 10 has moved to a state where it is almost positioned on the swing base 54.
Stops. At this stage, the two-bar linkages are locked in the upright position by a swing lock mechanism (not shown), so that the wheelchair 10 is held above the swing base 54. After the wheelchair 10 has been moved into the room in this way, the wheelchair 10 and the swing base 54 are integrally rotated about 90 degrees by manual operation and positioned in the forward direction of the vehicle. As described above, the pinion gear 54a and the rack 5
The wheelchair 10 slides rearward while rotating toward the front of the vehicle due to the meshing action of 1a. Even at this stage, the wheelchair user remains seated on the seat body 11, so that the wheelchair user is seated at a predetermined position in the vehicle compartment facing forward by the above operation.

When going out of the room from a state where the user is seated at a predetermined position in the room as described above, the operation opposite to the above operation may be performed. Also in this case, the wheelchair user uses the seat body 11.
It is not necessary to perform a transfer operation from the vehicle exclusive seat to the wheelchair as in the related art. The wheelchair user slides forward while rotating the wheelchair 10 toward the door opening D while sitting, and then moves the wheelchair 10 out of the room by operating the lift-up mechanism 50 to the swing-out side. At the stage when the wheelchair 10 has completely moved out of the room, the lift-up mechanism 50 is stopped once, and the two front wheels 22, 22 are stopped.
Then, the two rear wheels 23 are taken out. After that, the lift-up mechanism 50 is activated again to the swinging side to bring the wheelchair 10 into contact with the ground. After the wheelchair 10 is grounded, the lift-up mechanism 50 is stopped again, and the lock bar 45 is moved downward to release the lock of the connecting plate 56. When the lift-up mechanism 50 is operated in the swinging direction again in this released state, the two connecting plates 56, 56 are displaced downward, whereby the upper ends 56c, 56c are hooked by the concave portions 40b, 40b.
The wheelchair 10 is separated from the lift-up mechanism 50 by advancing the wheelchair 10 at this stage. The wheelchair 10 separated from the lift-up mechanism 50 in this way can be moved independently, and can be used without any difference from a normal wheelchair.

As described above, according to the vehicle lift-up seat 1 of the present embodiment, the wheelchair 10 which can be used as a normal wheelchair is integrated (the seat frame 20 and the front and rear wheels 22, 22, 23, 23). (In a state equipped with the like) and used as a vehicle seat by moving into a room, so that a wheelchair user can sit at a predetermined position in the vehicle room without performing any conventional transfer operation. , And from the seating position in the vehicle cabin to the outside. As described above, since the wheelchair user can remain seated on the seat body 11 of the wheelchair 10, getting on and off the vehicle becomes very easy, and as a result, the burden on the caregiver is greatly reduced. In addition, since the wheelchair 10 is moved by the lift-up mechanism 50, the separation / mounting operation of the seat body in the case where the seat body of the wheelchair is separated from the wheel side and only the seat body is moved into the vehicle interior is performed. There is no need to do this, and this also reduces the burden on caregivers and the like. Further, it is not necessary to separately load the separated wheel side into the vehicle. Further, connecting recesses 40, 40 are provided on both sides of the seat back, and the connecting plates 5 are provided in the both connecting recesses 40, 40.
The configuration in which the seats 6 and 56 are connected allows the reclining function of the seat back to be used.

Next, another embodiment of the lock bar 45 will be described. The lock bar 45 exemplified above is moved up and down independently by manual operation to lock the connecting plate 56.
Although the configuration is such that the unlocking is performed, a configuration in which the locking and unlocking operation is performed in conjunction with the storing / removing operation of the rear wheels 23 and 23 (an interlocking lock type) may be employed.
This embodiment is shown in FIG. A description of the same points as in the above-described embodiment will be omitted, and the same reference numerals will be used in the following description. A cam plate 80 is provided on the side of the rear wheel stay 23b which can be turned up and down via the support shaft 23a.
Is attached. An arc-shaped cam surface 80a is formed on the upper surface of the cam plate 80. The cam surface 80a is provided at the center of rotation of the rear wheel stay 23b (the support shaft 23).
a) is set along a direction that gradually moves away from
The setting is such that the lower the rear wheel stay 23b is rotated, the lower the displacement. A lock bar 81 is mounted above the cam surface 80a. This lock bar 8
1 is supported on the side of the seat frame 20 via a bracket 82 so as to be vertically movable. Rock bar 8
A guide roller 84 is rotatably attached to the lower end of the unit 1 via a holding block 83. Since the compression spring 85 is interposed between the holding block 83 and the bracket 82, the lock bar 81 is urged downward, and the urging force causes the guide roller 84 to move the cam plate 80 It is pressed against the surface 80a. On the other hand, the lock bar 81 is provided below the connecting plate 56.
Block 8 having a lock hole 86a into which a hole can be inserted.
6 is attached.

According to this structure, the rear wheel stay 23b is rotated downward as shown by the two-dot chain line in FIG.
Is removed, the cam surface 80a is located at the lowermost position, so that the guide roller 84 pressed by the cam surface 80a and, consequently, the lock bar 81 are located at the lowermost position (unlock position). The upper end of the bar 81 does not reach the lock hole 86a of the lock block 86. In this state, the wheelchair 10 is retracted and the connecting plate 56 is inserted into the connecting recess 40. Thereafter, the lift-up mechanism 50 is operated to move the connecting plate 56 upward. It is inserted into the concave portion 40b and the rearward displacement is regulated. This is as described above. After the upper end portion 56c of the connecting plate 56 is hooked and inserted into the concave portion 40b, the lift-up mechanism 50 is further operated to the inside of the room, whereby the front and rear wheels 22, 22, 22, 23, 2 of the wheelchair 10 are moved.
3 is raised, and in this state, the front and rear wheels 22, 22, 2
3 and 23 are stored in the wheel storage portion 30a of the cover body 30. At this time, when one of the rear wheel stays 23b is turned upward, the cam surface 80a is relatively displaced upward during the turning process, so that the lock bar 81 moves upward against the compression spring 85. When the rear wheel stay 23b is rotated until the rear wheel 23 is completely housed as shown by the solid line in FIG. 10, the cam surface 80a is relatively displaced to the highest position, whereby the lock bar 81 is raised. The upper end of the lock block 86 is inserted into the lock hole 86a of the lock block 86 after reaching the moving end.

When the upper end of the lock bar 81 is inserted into the lock hole 86a of the lock block 86, the rearward displacement (the rightward displacement in the figure) of the lower end of the connecting plate 56 is regulated.
As a result, the connecting plate 56 is fixed in the connecting recess 40.
Thereafter, the wheelchair 10 can be moved to a predetermined position in the room by operating the lift-up mechanism 50 as described above. Conversely, if the wheelchair 10 is moved out of the cabin and the rear wheel 23 is taken out, the cam surface 80a is displaced to a relatively low position, and the lock bar 81 is moved downward by the compression spring 85. The upper end of 81 is pulled out of the lock hole 86a of the lock block 86, and the lower end of the connecting plate 56 is unlocked. As described above, the lock bar 81 is interlocked with the storage / removal operation of the rear wheel 23.
Is moved up and down to lock and unlock the lower end of the connecting plate 56, so that there is no need for the user to directly operate the lock bar 45 as described above. Usability can be further improved. It should be noted that only the locking operation may be linked to the folding operation of the wheel (the rear wheel 23), and the unlocking operation may be separately performed by a manual operation.

[0026] Also, without the two pairs, as exemplified four-link mechanism in Li Futoappu mechanism 50 may be a set of four bar linkage 55.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention, and is a perspective view in a state where a wheelchair is separated from a lift-up mechanism.

FIG. 2 is a perspective view showing a state where the lift-up mechanism is connected to a wheelchair and the wheelchair is lifted from the ground.

FIG. 3 is a side view of the vehicle lift-up seat,
It is a figure which shows the connection structure with respect to a wheelchair of a lift-up mechanism.

FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, showing a state in which a connecting plate is inserted into a connecting recess.

FIG. 5 is a side view showing an engagement state of an upper end portion of a connecting plate with a hooking concave portion of the connecting concave portion.

FIG. 6 is a side view showing a support state of the lock lever.

FIG. 7 is an overall perspective view of a lift-up mechanism.

FIG. 8 is an overall perspective view of the electric cylinder.

FIG. 9 is a plan view of a mechanism for linking a rotation operation of a swing base and a slide operation of a main base.

FIG. 10 is a side view of an interlocking lock type lock bar and its periphery.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lift-up seat for vehicles 10 ... Wheelchair 11 ... Seat main body 20 ... Seat frame 22 ... Front wheel, 23 ... Rear wheel 30 ... Cover body, 30a ... Wheel storage part 40 ... Connection concave part, 40b ... Hook concave part 45 ... Lock bar Reference Signs List 50 lift-up mechanism 51 slide rail 52 main base 53 rotating plate 54 swing base 55 4-link mechanism 56 connecting plate 56c upper end 80 cam plate 90 electric cylinder F vehicle floor D Door opening

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takafumi Hijikata 100 Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Toyota Auto Body Co., Ltd. (56) References JP-A-58-54954 (JP, A) JP-A-9 -86233 (JP, A) UK Patent Application Publication 2069969 (GB, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61G 3/00-5/04 B60N 2/02-2/54 B60P 3/00

Claims (10)

(57) [Claims] 1. A seat back having a reclining function.
Body provided with a lock , and a sheet supporting the sheet body
Frame, and capable set folded to the seat frame
A wheelchair having wheels before and after being kicked is installed in the vehicle interior, by connecting該車chair holding the seating posture of the seat body by vertical movement of the four-bar linkage mechanism to the four-bar linkage which operates up and down And a lift-up mechanism for moving the wheelchair between the vehicle interior and the exterior of the vehicle interior, wherein the wheelchair moves into the vehicle interior, can be used as a seat for the vehicle interior, and moves out of the vehicle interior, the vehicle lift-up sheets and available configurations alone separately from four-bar linkage mechanism of the lift-up mechanism, before carboxymethyl over DOO frame, raised from both sides of its upward
And provided on the side of the seat back and
Position that does not impede the reclining function of the
While comprising a connecting recess for location, the lift-up mechanism
Is a pair of left and right four-bar linkages corresponding to the coupling recesses.
And a pair of left and right links provided at the tip of the two-bar linkage mechanism.
A plate, and the connecting plate is engaged with the connecting concave portion by the ascending operation of the four-bar linkage , so that the seat back
A vehicle in which the wheelchair is connected to the lift-up mechanism in a state in which a reclining function can be used, and a lowering operation of the four-bar linkage disengages a connection plate from the connection recess to separate the wheelchair from the lift-up mechanism. For lift-up sheet. 2. The vehicle lift-up seat according to claim 1, wherein a pair of four-bar linkages are provided corresponding to both left and right sides of the wheelchair, and are connected to each other and move up and down integrally. Lift-up seat for vehicles. 3. The vehicle lift-up seat according to claim 1, wherein the lift-up mechanism is capable of rotating the four-bar linkage between a position facing the front of the vehicle and a position facing the door opening side. A lift-up seat for vehicles with a turntable on which it is placed. 4. The vehicle lift-up seat according to claim 1, wherein the connecting recess is provided to be opened rearward so that the connecting plate is inserted when the wheelchair is retracted, and the connecting plate is inserted. A lift-up seat for a vehicle configured to prevent a forward displacement of a wheelchair with respect to the connecting plate when the connecting plate is moved upward in a state. 5. The lift-up seat for a vehicle according to claim 1, wherein the four-bar linkages are arranged back and forth with respect to each other, and a lower end thereof is connected to the interior of the vehicle so as to be rotatable up and down.
A lift-up seat for a vehicle, comprising: a plurality of link arms; wherein the connection plate is rotatably connected to tips of the link arms so as to connect the link arms to each other. 6. A seat back having a reclining function.
Body with a helmet, a sheet that supports the body sheet body
Frame, and capable set folded to the seat frame
A wheelchair having wheels before and after being kicked, and a lift-up mechanism that is installed in the vehicle interior, the lift-up mechanism, by operation of the lift-up mechanism moves between the vehicle interior and the vehicle exterior and vertical movement Do
The wheelchair includes a pair of left and right connecting plates, and the wheelchair is upward from both sides of the seat frame.
It is provided in a standing shape and is located on the side of the seat back.
Does not hinder the reclining function of the seat back
A connecting concave portion which is located at a position, is opened rearward so that the connecting plate is inserted by retreating the wheelchair, and the connecting plate is inserted with almost no gap, and the connecting plate is inserted. When the connecting plate is moved upward, the forward displacement of the wheelchair with respect to the connecting plate is prevented , and the reclining function of the seat back is used.
Wherein in a state capable of connecting plate is engaged with the connecting recess, in a state in which the connection plate is engaged with the connecting recess, by the operation of the lift-up mechanism, the vehicle interior while maintaining a seated posture the wheelchair It is possible to move and use it as a seat for the vehicle interior, and to be able to move out of the vehicle interior while holding the wheelchair in a sitting posture, and to move the connection plate from the connection recess in a state where the wheelchair is moved out of the vehicle interior. A lift-up seat for a vehicle in which the wheelchair can be used alone by being separated. 7. The vehicle lift-up seat according to claim 1, wherein the connecting recess has a U-shaped cross section. 8. The lift-up seat according to claim 1, wherein the upper portion of the connection recess is opened downward at an upper portion of the connection recess, and the upper portion of the connection plate is fitted by rising of the connection plate.
A vehicle lift-up seat having a hooking recess that comes off when the vehicle descends. 9. The vehicle lift-up seat according to claim 1, wherein a lock bar is provided below the connection recess so as to be movable up and down, and the lock bar is moved upward so that a tip end thereof is connected to the connection recess. A vehicle lift-up seat configured to be engaged with a lower portion of a connecting plate inserted in the vehicle to fix the lower portion of the connecting plate. 10. The vehicle lift-up seat according to claim 9, wherein the lock bar is configured to move upward in conjunction with a folding operation of a wheelchair wheel.