JP3420442B2 - Wheelchair fixing device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a wheelchair fixing device for fixing a wheelchair to a floor.

[0002]

2. Description of the Related Art Conventionally, a vehicle 201 such as a microbus or a one-box car as shown in FIG. 14 has been used when a wheelchair user travels far away.
1620). This vehicle 201 is provided with a passenger compartment 202 at a rear portion thereof, and a floor 203 of the passenger compartment 202 is provided with a plurality of wheelchair fixing devices for fixing a wheelchair 204.

As shown in FIG. 15, the wheelchair 204 has a frame 205 made of a rectangular pipe material.
And a sheet material 206 in which the frame 205 is cross-linked left and right
Chair body 207 formed by the
The footrest 208 extending further forward and the chair body 2
07 is composed of a free wheel 209 and a drive wheel 210 provided on the front and rear portions of the wheelchair 07, and the wheelchair fixing device is mounted on the footrest 208 by the front strap 2
11 and a side band 21 that is hung around the driving wheel 210.
2 and. One end of each of the strips 211 and 212 is fixed to the floor 203, and the other end thereof is provided with a buckle 214 that is engaged with a mounting portion 213 provided on the floor 203.

[0004]

However, in the above wheelchair fixing device, the wheelchair 204 is mounted on the floor 20.
3 is fixed to the foot strap 208 or the drive wheel 210, and
The buckle 214 provided at the tip of the floor 203
The wheelchair 204 could not be fixed without an attendant because it had to be locked to the mounting portion 213 provided in the.

The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide a wheelchair fixing device which can fix a wheelchair without hanging the belt on the driving wheel. It is intended.

[0006]

In order to solve the above-mentioned problems, in the present invention according to claim 1, the left and right frame constituent members provided on the left and right side portions of the wheelchair and extending in the front-rear direction are provided on the floor. A device for fixing a wheelchair, which is fixed to the floor, and a device main body fixed to the floor, and a pair of left and right hooking mechanisms provided on the device main body and releasably engaged with the left and right frame components. A left and right hooking mechanism, a first link rotatably supported by the apparatus main body, and a first spring biasing the first link in a direction to maintain the upright state. A second link rotatably supported on the upper end of the first link, and the second link urging the second link in a direction to maintain the collapsed state, and The first with a small bias And a hook-like hook shape provided at one free end of the second link and having a length capable of contacting a corresponding frame component when the second link rotates. And a drive means that is connected to the other free end of the second link and drives the second link in a direction to rotate the second link. And a contact state in which the hook-shaped member is brought into contact with the corresponding frame component member, and rotation of the second link is prevented by the contact of the hook-shaped member, and The rotation of the link of No. 1 is started, and the hook-shaped member is moved downward while sliding the hook-shaped member on the corresponding frame component member, and the hook-shaped member is moved downward. To the corresponding frame component and to urge downward. It was formed configured to be able to.

That is, the hook-shaped member urged by the second link and the second spring in the direction in which the second link and the second spring are kept in the tilted state is first rotated by the operation of the driving means. By doing so, it is brought into contact with the corresponding frame component member. Then, since the hook-shaped member is brought into contact with the corresponding frame constituent member, the rotation of the second link is prevented and the first link starts to rotate. Then, the hook-shaped member that is in contact with the corresponding frame component member is moved downward while sliding on the corresponding frame component member, and is eventually locked to the corresponding frame component member and is also moved downward. Is urged to. Therefore, in the wheelchair, the left and right frame constituent members forming the frame are locked to the device main body fixed to the floor via the hook-shaped members, that is, to the floor via the device main body. , Is urged to the floor side.

According to a second aspect of the present invention, there is provided a wheelchair fixing device for fixing the left and right driving wheels of a wheelchair to a floor, the device main body being fixed to the floor, and the left and right driving wheels with respect to the device main body. Positioning means for positioning the front-rear position, a slide rail that extends along the width direction of the wheelchair positioned by the positioning means, is fixed to the device body, and is slidable along the slide rails. A pair of left and right slide members that are provided, a regulation means that regulates the range of movement of the left and right slide members in the direction in which they approach each other, and a pair that is provided on each of the left and right slide members and is capable of contacting each of the left and right drive wheels. Of the left and right abutting members, and a feed screw that is provided on one of the left and right slide members and extends toward the other slide member is rotatably supported. A support member, and a rotation means for rotating the feed screw, which is supported by the support member, provided on the other slide member, screwed to the feed screw,
A direction in which the left and right slide members are separated from each other with the rotation of the feed screw; When the contact member provided on one of the left and right slide members comes into contact with the corresponding drive wheel and the sliding is blocked, the contact member provided on the other slide member responds. While sliding until it comes into contact with the driving wheel, the left and right slide members are slid in a direction in which the left and right slide members are close to each other as the feed screw rotates backward, and the movement of one of the left and right slide members is restricted by the restricting means. The other slide member is configured to slide until the movement is regulated by the regulation means.

That is, when the rotating means is actuated, the feed screw is rotated, and the left and right slide members are slid in the direction away from each other, for example, the left contact member provided on the left slide member is first. In addition, even when the front contact position is brought into contact with the left drive wheel positioned by the positioning means and the sliding is prevented, until the right contact member provided on the right slide member comes into contact with the right drive wheel. To be slid. Therefore, the center position of the wheelchair is arranged at a position deviated from the center position of the left and right contact members, and the distance between the left contact member and the left drive wheel and the distance between the right contact member and the right drive wheel are set. Even if the difference is different, the wheelchair is fixed by the pressing force of the left and right abutting members at that position without being subjected to the lateral moving force of the left and right abutting members. On the other hand, when the rotating means is actuated, the feed screw is reversed, and the left and right slide members are slid in the direction of approaching each other, the movement of one of the left and right slide members is regulated by the regulating means. Then, the other slide member is slid until the movement is regulated by the regulation means.

Further, according to the invention of claim 3, there is provided a wheelchair fixing device for fixing to the floor the left and right frame constituent members provided on the left and right side portions of the wheelchair and extending in the front-rear direction. An apparatus main body fixed to the floor; a pair of left and right hooking mechanisms provided on the apparatus main body and releasably locked to the left and right frame constituent members; A driving wheel fixing mechanism that presses the wheels from the side, and the driving wheel fixing mechanism positions the front and rear positions of the left and right driving wheels with respect to the main body of the apparatus; and the wheelchair positioned by the positioning means. Slide rails extending in the width direction and fixed to the apparatus body, and a pair of left and right slides slidably provided along the slide rails. Member, a regulating means for regulating the moving range of the left and right slide members in a direction in which the left and right slide members approach each other, and a pair of left and right abutting members that are respectively provided on the left and right slide members and are capable of abutting on the left and right drive wheels, respectively. A supporting member provided on one of the left and right slide members and rotatably supporting a feed screw extending toward the other slide member,
Rotating means for rotating the feed screw supported by the support member and rotation means provided on the other slide member, screwed to the feed screw, and the left and right slide members come close to each other as the feed screw rotates. And a screwing member that moves in a separating direction, and is provided on either one of the left and right sliding members by sliding the left and right sliding members in a direction in which they are separated from each other as the feed screw rotates. When the contact member comes into contact with the corresponding drive wheel and its sliding is blocked, the contact member provided on the other slide member slides until it comes into contact with the corresponding drive wheel, while the reverse rotation of the feed screw is performed. Accordingly, when the left and right slide members are slid toward each other and the movement of one of the left and right slide members is restricted by the restricting means, the other slide member is slid. It is configured to slide until the movement of the member is regulated by the regulating means, the left and right hooking mechanisms are respectively coupled to the left and right slide members via a left and right coupling member, and the left and right hooking mechanisms are coupled to the left and right sides. A first link rotatably supported by each of the connecting members, a first spring biasing the first link in a direction to maintain the standing state, and an upper end of the first link. Second part rotatably supported by the section
Of the second link and the second spring that biases the second link in a direction in which the second link is maintained and has a smaller biasing force than the first spring. A hook-shaped left and right hook-shaped member provided at the free end and having a length capable of contacting the corresponding frame constituent member when the second link rotates, and the other of the second links. Drive means connected to the free end portion and driving the second link in a rotating direction, and the second link is rotated in accordance with the operation of the driving means, and the hook-shaped member is formed. The contact state in which one of the hooks is brought into contact with the corresponding frame component member, and the rotation of the second link is blocked by the contact of the hook-shaped member, and the rotation of the first link is started, so that the hook is hooked. Move the member downward while sliding it on the corresponding frame component. And downward state, with the downward movement of the hook-shaped member, locked to the frame construction members to the corresponding 該鉤 member, and a locked state for urging downward to form configured to be able to.

That is, when the rotating means is actuated, the feed screw is rotated, and the left and right slide members are slid in the directions away from each other, as in the case of claim 2, for example, the left slide member. Even if the left contact member provided on the first contact first contacts the left drive wheel whose front-rear position is positioned by the positioning means and the sliding is blocked, the right contact member provided on the right slide member The member is slid until it contacts the right drive wheel. Therefore, the center position of the wheelchair is arranged at a position deviated from the center position of the left and right contact members, and the distance between the left contact member and the left drive wheel and the distance between the right contact member and the right drive wheel are set. Even if the difference is different, the wheelchair is fixed by the pressing force of the left and right abutting members at that position without being subjected to the lateral moving force of the left and right abutting members.

At this time, the left and right hooking mechanisms which are detachably engaged with the left and right frame constituent members of the wheelchair are connected to the left and right slide members via the left and right connecting members, and the left and right hooking mechanisms are respectively Since the left and right contact members of the left and right slide members connected to the left stop member are stopped at the position where they are pressed against the left and right drive wheels, the separation distance between the left hooking mechanism and the left frame constituent member, and
The separation distance between the right hooking mechanism and the right frame component is kept constant in any case.

As in the case of the first aspect, the hook-shaped member urged by the second link and the second spring of the left and right hooking mechanism in the direction for maintaining the tilted state operates the driving means. Accordingly, the second link is rotated so that it is brought into contact with the corresponding frame constituent member. Next, since the hook-shaped member is brought into contact with the corresponding frame constituent member, the rotation of the second link is blocked and the first link starts to rotate. Then,
The hook-shaped member that abuts the corresponding frame component,
While being slid by the corresponding frame constituent member, it is moved downward, and is eventually locked by the corresponding frame constituent member and is urged downward. Therefore, in the wheelchair, the left and right frame constituent members forming the frame are also locked to the device main body fixed to the floor via the hook-shaped members, that is, to the floor via the device main body. , Is urged to the floor side.

According to a fourth aspect of the invention, there is provided a wheelchair fixing device for fixing the left and right frame constituent members provided on the left and right side portions of the wheelchair and extending in the front-rear direction to the floor. A device main body fixed to the floor, and a pair of front left and right hooking mechanisms provided on the device main body and releasably locked to the left and right frame constituent members in front of the drive wheels of the wheelchair. A pair of rear left and right hooking mechanisms that are provided on the device body and that are detachably engaged with the left and right frame constituent members on the rear side of the drive wheels of the wheelchair.
A first link that is rotatably supported by the device body, a first spring that biases the first link in a direction that maintains the upright state, and an upper end portion of the first link. And a second link rotatably supported and a second link that urges the second link in a direction in which the second link is maintained in a tilted state and that has a smaller urging force than the first spring. A hook and a hook-shaped member provided at one free end of the second link and having a length capable of contacting a corresponding frame constituent member when the second link rotates. And a drive means that is connected to the other free end of the second link and drives the second link in the direction of rotation, and the second link is associated with the operation of the drive means. Rotate to bring the hook-shaped member into contact with the corresponding part of the frame component. And the hook-shaped member abuts to prevent the rotation of the second link and the rotation of the first link to start, so that the hook-shaped member becomes a corresponding frame component member. With a downward moving state of moving downward while sliding, and with the downward movement of the hook-shaped member, the hook-shaped member is locked to a portion of the corresponding frame component member,
In addition, it is possible to form a locked state that urges downward.

Also in this case, as in the case of claim 1, after each hook-shaped member in the tilted state is rotated by the driving means, the hook-shaped members are locked to the left and right frame constituent members constituting the frame of the wheelchair. And is driven downward.
As a result, in the wheelchair, the left frame constituent member and the right frame constituent member are locked by the hook-shaped members and urged toward the floor at the front and rear positions sandwiching the drive wheel.

Further, in the invention of claim 5, there is provided a wheelchair fixing device for fixing to the floor left and right frame constituent members provided in the left and right side portions of the wheelchair and extending in the front-rear direction. A device main body to be fixed, positioning means for positioning the front and rear positions of the left and right drive wheels with respect to the device main body, extending along the width direction of the wheelchair positioned by the positioning means, and fixed to the device main body Slide rails, a pair of left and right slide members provided slidably along the slide rails, restriction means for restricting the moving range of the left and right slide members in the direction of approaching each other, and the left and right slide members The left and right limit switches that are activated when they come into contact with the left and right drive wheels, and one of the left and right slide members. Is a rotation means for rotating a support member rotatably supports the feed screw extending to the other slide member, the feed screw supported on the support member,
A screw member that is provided on the other slide member and that is screwed into the feed screw and that moves the left and right slide members toward and away from each other as the feed screw rotates; When both of the switches are operated, the rotation means stops the rotation of the rotation means, and with the rotation of the feed screw, slides the left and right slide members in a direction in which they are separated from each other. While the limit switch provided on either one of them comes into contact with the corresponding drive wheel to operate,
When the sliding of the one slide member is blocked, the limit switch provided on the other slide member slides until it comes into contact with the corresponding drive wheel and operates.
With the reverse rotation of the feed screw, the left and right slide members are slid toward each other, and when the movement of one of the left and right slide members is restricted by the restricting means, the movement of the other slide member is restricted by the restricting means. It is configured to slide until it is regulated, and is connected to the left slide member via a left connecting member, and is detachable from the left frame constituent member on the front side and the rear side with the drive wheel of the wheelchair sandwiched therebetween. And a pair of left hooking mechanisms that are locked to the right slide member and a right connecting member via a right connecting member. A pair of right hooking mechanisms that are locked to each of the hooks, and each hooking mechanism includes a first link rotatably supported by a corresponding connecting member; A first spring that urges the link in a direction to maintain the upright state, a second link rotatably supported at the upper end of the first link, and the second link. A second spring that is biased in a direction for maintaining a tilted state and has a biasing force smaller than that of the first spring, and is provided at one free end of the second link, A hook-shaped member having a length capable of abutting the corresponding frame component when the link rotates, and the other free end of the second link. And a drive means for driving the link in a rotating direction, and with the operation of the drive means,
A contact state in which the second link is rotated to bring the hook-shaped member into contact with a portion of the corresponding frame component member, and rotation of the second link is prevented by the contact of the hook-shaped member. At the same time, the rotation of the first link is started, and the downward movement state in which the hook-shaped member moves downward while sliding the hook-shaped member to the corresponding frame component member, and the downward movement of the hook-shaped member It is configured such that the hook-shaped member is locked to a corresponding portion of the frame constituent member and is urged downward.

That is, when the rotating means is actuated, the feed screw is rotated, and the left and right slide members are slid in the direction in which they are separated from each other, for example, the left limit switch of the left slide member is first moved to the left drive wheel. Even when the left limit switch is actuated by contacting the right switch and the left slide member provided with the left switch is prevented from sliding, the right limit switch provided on the right slide member causes the right drive wheel to move. The right slide member is slid until it comes into contact with and operates. Therefore, the center position of the wheelchair is arranged at a position deviated from the center position of the left and right abutting members, the distance between the left slide member and the left drive wheel, and the distance between the right slide member and the right drive wheel. , The center position of the left and right slide mechanism is maintained at the center of the wheelchair. At this time, the left and right hooking mechanisms that are detachably engaged with the left and right frame components of the wheelchair are connected to the left and right slide members via the left and right connecting members, and the center position of the left and right slide mechanisms is Since it is maintained at the center, the separation distance between the left hooking mechanism and the left frame constituent member and the separation distance between the right hooking mechanism and the right frame constituent member are constant in any case. To be kept.

Further, as in the case of claim 1, the hook-shaped member urged in the direction in which the folded state is maintained by the second link and the second spring of the left and right hooking mechanism operates the driving means. Accordingly, the second link is rotated so that it is brought into contact with the corresponding frame constituent member. Next, since the hook-shaped member is brought into contact with the corresponding frame constituent member, the rotation of the second link is blocked and the first link starts to rotate. Then,
The hook-shaped member that abuts the corresponding frame component,
While being slid by the corresponding frame constituent member, it is moved downward, and is eventually locked by the corresponding frame constituent member and is urged downward. Therefore, in the wheelchair, the left and right frame constituent members that form the frame of the wheelchair are attached to the device main body fixed to the floor at the front and rear positions sandwiching the drive wheel by the hook-shaped members, that is, through the device main body. The floor is locked and urged toward the floor.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a wheelchair fixing device 1 according to the present embodiment. The wheelchair fixing device 1 is mounted on a floor of a vehicle or a floor of a lift used when a wheelchair is housed in a vehicle. It is what is done.

This wheelchair fixing device 1 is a device body 2 which is accommodated in the floor through an opening formed in the floor.
And a frame fixing device 3 for fixing the frame of the wheelchair
And a drive wheel fixing device 4 for fixing the drive wheel of the wheelchair, and the device body 2 has a rectangular container body 5 having an open upper surface for housing the frame fixing device 3 and the drive wheel fixing device 4. And a flange portion 6 provided on the upper edge of the rectangular container body 5 and fixed to the edge portion of the opening provided on the floor.

The apparatus body 2 is provided with a lid 11 for closing the upper opening of the rectangular container body 5, and the lid 11 has a left lid 12 for covering the left portion of the upper opening.
And an inner lid 13 that covers the center and a right lid 14 that covers the right.
Consists of. The left and right lids 12, 14 have arcuate recesses 15, 16 for accommodating the left and right drive wheels of the wheelchair formed as positioning means for positioning the front and rear positions of the drive wheels. And the front and rear positions of the wheelchair with respect to the device body 2 are positioned. Further, the inner lid 13 is formed such that the central portions of the left and right lids 12, 14 located in the recesses 15, 16 are raised, whereby the inner lid 13 has a front slope 17 and a central portion. A surface 18 and a rear slope 19 are formed. The front slope 17 has left and right elongated holes 20 and 21 extending inward from the left and right, and a side opening of the inner lid 13 that communicates with the recesses 15 and 16. Department 22 is open.

The frame fixing device 3 includes the inner lid 1
Left and right hooking mechanisms 33, 34 provided with left and right hook bars 31, 32 coming in and going out from the left and right elongated holes 20, 21 of 7,
A wire 35 for operating the left and right hook bars 31, 32 in the left and right hooking mechanisms 33, 34 and the wire 3
The operation wire 37 including a casing 36 movably covering 5 and the wire 35 of the operation wire 37 are
The drive device 39 is provided with a drive motor 38 as a drive means for driving in the extending direction.

As shown in FIG. 3, the both hooking mechanisms 33 and 34 are the left and right hook bars 31 and 32 as hook-like members each having a bent portion 41 formed at the tip, and the base ends of the left and right hook bars 31 and 32. Is a left and right base end member 42, 43 as a second link in which is screwed and fixed, and a first link that pivotally supports the left and right base end members 42, 43 at the center thereof. The left and right bearing members 44, 45 are composed of left and right bearing members 44, 45, and left and right base members 46, 47 that rotatably support the base ends of the left and right bearing members 44, 45. , 47 are urged toward the upright direction by the springs 48 provided on the left and right base end members 42, 43.
A spring (not shown) provided at 45 urges the left and right hook bars 31 and 32 in the direction of tilting them. The left and right bearing members 44 and 45 are provided on the left and right base members 46 and 47 rather than the springs that urge the left and right base end members 42 and 43 and the left and right hook bars 31 and 32 in the direction of tilting. When the spring 48 for urging the members 44 and 45 toward the upright direction is strongly set and the wire 35 described later is pulled, first, the left and right base end members 42 and 43 and the left and right hook bars 31 and 32 are erected. It is provided. The springs act to return the left and right hooking mechanisms 33, 34 in the direction in which they are housed in the apparatus body 2. Further, as shown in FIG. 4, the left and right base end members 42, 43 are formed in a shape bent from the center of the shaft pivotally supported by the left and right bearing members 44, 45. A wire 35 of an operation wire 37 having a casing 36 fixed to the left and right base members 46 and 47 is locked. As a result, the left and right hooking mechanisms 33, 34 include the left and right bearing members 44, 45 urged by the spring 48 and the left and right base end members 42, 4 operated by the wire 35.
3 and 3 form a link mechanism.

That is, as shown in FIG. 4, the left and right hook bars 31 and 32 supported by the link mechanism are housed in the apparatus main body 2 provided with the both hooking mechanisms 33 and 34, and the apparatus main body is provided. In a state where the wire 35 is supported by the hook bar rest 51 that is provided to project from the position 2, that is, in a state where the hook bar rest 51 is tilted, the wire 35 is operated in accordance with the operation of the drive device 39.
When the tension is further transmitted, the base ends of the left and right base end members 42 and 43 are driven inward by the wire 35, as shown in FIG. Then, the left and right hook bars 31, 3 provided on the tip side of the shaft supporting portions of the left and right base end members 42, 43.
2 stands up. In this standing state, the left and right hook bars 3
1, 32 abut the frame of the wheelchair, which prevents further lateral rotation. At this time,
The bent portion 41 and the frame of the wheelchair are vertically separated from each other. Further, when tension is further applied by the wire 35, lateral rotation of the left and right hook bars 31 and 32 is blocked by the frame of the wheelchair, so that the left and right base end members 42 are disposed as shown in FIG. , 43
The tip portions of the left and right bearing members 44 and 45 that support the left and right bearing members 44 and 45 are driven in the pulling direction by the wire 35, and are supported by the left and right base members 46 and 47.
However, the left and right hook bars 31 and 32 are configured to be driven downward by rotating around the support shaft. As a result, the left and right hooking mechanisms 33, 34 are
Rotate upright until the left and right hook bars 31, 32 hit the frame of the wheelchair, and in this state the left and right hook bars 31, 3
The bent portion 41 at the tip of 2 and the frame of the wheelchair are separated from each other in the vertical direction.
1, 32 are moved downward while being in contact with the frame of the wheelchair, and the bent portion abuts the frame of the wheelchair to lock the frame of the wheelchair, so that even in a wheelchair with different dimensions and heights between the frames of the wheelchair. Can be easily locked.

The left and right hooking mechanisms 33, 34 are
As shown in FIGS. 7 and 2, the left and right base members 4
6, 47 are connected to left and right connecting members 55, 56 extending in the front-rear direction of the apparatus body 2. The left and right base members 46 and 47 are provided at the tips thereof with
A rotatably provided roller 111 projects, and the roller 111 is in contact with the lower surface of a guide 58 provided on the front side surface 57 of the rectangular container body 5 and is slidably supported. Further, the drive wheel fixing device 4 is provided at the rear ends of the left and right connecting members 55 and 56. The guide 58
When the left and right hook bars 31 and 32 lock the frame of the wheelchair, the pulling reaction force of the drive device 39 prevents the frame fixing device 3, the left and right blocks 61 and 62, etc. from rising. The left and right base members 46 and 47 are moved over the moving range of the left and right base members 46 and 47.

As shown in FIG. 8, the drive wheel fixing device 4 is provided on the left and right blocks 61 and 62 as slide members bolted to the left and right connecting members 55 and 56, and on the left and right blocks 61 and 62. The left and right abutting members 65 and 66 are provided to the left and right abutting members 63 and 64, and the left and right abutting members 65 and 66 provided at the tips of the left and right extending parts 63 and 64. Arc-shaped steps 67, 67 are formed on the side surface. As a result, as shown in FIG. 9, the left and right contact members 65, 66 have contact surfaces 75 contacting the side surfaces of the rim 73 of the left and right drive wheels 71, 72 of the wheelchair, and the upper surface of the rim 73. A contact surface 76 for contact is formed.

Further, as shown in FIGS. 2 and 8, the left and right flocks 61, 62 are fixed to the bottom surface 81 of the rectangular container body 5 on the slide rail 82 extending in the lateral direction.
However, each of the left and right blocks 61 and 62 is independently slidably fixed via a ball bearing (not shown). As shown in FIG. 8, the right block 62 is provided with a screwing member 115.
5, a feed screw 83 having a side surface formed with a screw is provided in a state where the tip of the feed screw 83 is screwed. This feed screw 83
The right block 62 is moved in the left-right direction by the rotation of the feed screw 83, and the base end portion of the feed screw 83 is rotatably supported by a support member 116 provided on the left block 61. , The support member 1
To the moving motor 84 as a rotating means provided in 16.
The feed screw 83 is rotated when it is coupled via a gear (not shown) and the movement motor 84 is operated. As a result, when resistance is applied to the left block 61 and stops, the right block 62 moves, and when resistance is applied to the right block 62, the left block 61 moves together with the movement motor 84.

Further, the apparatus main body 2 is separated from the center of the apparatus main body 2 to the left and right by the same size, and the left and right blocks 6 are provided.
Stoppers 112, 112 for stopping the inward movements of the left and right blocks 61, 62, that is, the movements for reducing the distance between the left and right blocks, are fixed inside the 1, 62. The stoppers 112 and 112 guarantee the stopping positions of the left and right blocks 61 and 62 when the wheelchair is fixed (the wheelchair is not fixed), and form stoppers. That is, one of the left and right blocks 61, 62 has stoppers 112, 112.
When it comes into contact with the stoppers 112, 112, the movement stops, and when the other continues contacting with the stoppers 112, 112, the movement stops. As a result, the drive wheel fixing device 4 is arranged such that the center of the wheelchair is displaced from the center of the device body 2 and can be easily fixed even if the position of the drive wheels is deviated in the left-right direction. Even in wheelchairs with wheels, the drive wheels can be fixed easily. That is, a rack and pinion is formed by the feed screw 83 and the gear by these, and the left and right blocks 61, 62 and the left and right blocks 61, 62 are moved on the slide rail 82 by the operation of the moving motor 84. Left and right connecting member 5 fixed to
5, 56 are configured to be moved in a direction away from each other and a direction approaching each other.

The drive motor 38 provided on the frame fixing device 3 and the moving motor 84 provided on the drive wheel fixing device 4 are connected to a control device (not shown). Is an operation switch for actuating the moving motor 84 and the drive motor 38 in the direction of fixing the wheelchair, and a release switch actuating the driving motor 38 and the movement motor 84 in the direction of releasing the fixed state of the wheelchair. And a cutoff circuit as a movement stopping means for cutting off the supply of electric power to the corresponding motors when an overcurrent occurs in both motors 38, 84.

In the present embodiment having the above-mentioned structure, the case where the wheelchair fixing device 1 is attached to the floor 91 of the vehicle as shown in FIGS. 11 and 12 will be described as an example.

That is, when fixing the wheelchair 92 to the floor 91, both drive wheels 71 and 72 of the wheelchair 92 are dropped into the recesses 15 and 16 of the wheelchair fixing device 1, and the front and rear sides of both drive wheels 71 and 72 are fixed. After the movement of the wheelchair is regulated and the front and rear positions of the wheelchair 92 with respect to the apparatus body 2 are positioned, the brake provided on the wheelchair 92 is applied. Then, by operating the operation switch provided in the control device, the drive wheel fixing device 4 provided in the wheelchair fixing device 1 is operated.
The moving motor 84 and the drive motor 38 of the frame fixing device 3 are sequentially operated.

Then, by the feed screw 83 forming a rack and pinion together with the gear provided on the moving motor 84 of the drive wheel fixing device 4, one end of the feed screw 83 is inserted into the left side of the drive wheel fixing device 4. Block 61
And the right block 6 to which the other end of the feed screw 83 is fixed.
2 is moved in a direction in which the blocks 61 and 62 are separated from each other along the slide rail 82 on which the blocks 61 and 62 are supported (see FIGS. 2 and 8). As a result, the left and right blocks 6
The left and right abutting members 65, 66 provided on the 1, 62 are moved to the left and right driving wheels 71, 72 of the wheelchair 92.
At this time, the wheelchair 92 has the left and right contact members 65,
When it is arranged at a position displaced from the center of 66, for example, when it is arranged at a position displaced to the right from the center of the left and right contact members 65, 66, as shown in FIG.
The left contact member 65 first contacts the rim 73 of the left drive wheel 71. At this time, the left and right blocks 61 and 62 provided with the left and right abutting members 65 and 66 are attached to the slide rail 82.
In addition, since each of them is independently and slidably fixed via a ball bearing that easily slides with a light force, only the right contact member 66 is in the direction of separation, that is, the right drive wheel 72 side. Moved to. At this time, in the wheelchair 92, a person is sitting on the drive wheels 71, 72,
The load is applied to the recesses 15 and 16, and the drive wheels 7
There is a frictional resistance against the force of pushing the 1, 72 in the left and right directions.
As a result, it is possible to prevent such a problem that the left contact member 65 keeps pushing the left drive wheel 71 and moves the wheelchair 92 leftward.

Eventually, the left and right contact members 65 and 66 contact both drive wheels 71 and 72, and the moving motor 84
When pressed by the driving force of, the load of the moving motor 84 increases and an overcurrent flows. Then, the cutoff circuit of the control unit cuts off the supply of electric power to the moving motor 84, the movement of the left and right contact members 65 and 66 is stopped, and the rack and pinion configuration described above fixes the left and right contact members 65 and 66 at that position. To be done. As a result, the wheelchair 92 is configured such that the left and right drive wheels 71, 72 are laterally pressed by the left and right contact members 65, 66 of the drive wheel fixing device 4,
It is fixed to the floor 91.

Next, when the drive motor 38 of the frame fixing device 3 is actuated by the control device and the drive device 39 provided with the drive motor 38 is actuated, as shown in FIG. The wires 35, 35 of the operation wires 37, 37 connected to 33, 34 are wound around the driving device 39. Then, the left and right hook bars 3 of the left and right hooking mechanisms 33 and 34, which are housed in the apparatus body 2 and to which the wires 35 and 35 are locked, are provided.
As shown in FIGS. 11 and 12, 1 and 32 are locked to pipe-shaped left and right frame components 94 and 95 that form the left and right lower edges of the frame 93 of the wheelchair 92.

Specifically, the left and right hooking mechanisms 33, 3
As shown in FIG. 4, the left and right hook bars 31 and 32 provided on the No. 4 are housed in the device main body 2 provided with both hooking mechanisms 33 and 34, and are attached to the hook bar rest 51 protruding from the device main body 2. When tension is transmitted from the wire 35 in a supported state, that is, in a tilted state, as shown in FIG. 5, the wires 35 cause the base ends of the left and right base end members 42 and 43 to move. Driven inward. Then, the left and right hook bars 31 and 32 provided on the tip side of the shaft supporting portions of the left and right base end members 42 and 43 are erected and the left and right frames of the wheelchair 92 positioned by the recesses 15 and 16 of the device body 2. Components 94, 95
Abutted against.

At this time, the left and right hook bars 31, 32 are
The left and right base members 46 and 47 that support the right and left base members 46 and 47 are connected to the left and right blocks 61 and 62 to which the left and right contact members 65 and 66 are fixed (see FIG. 2).
7 and FIG. 7), the contact members 65 and 66 provided on the connecting members 55 and 56 are respectively driving wheels 71 and
Since it is stopped at the position where it is pressed by 72, the distance between the left hook bar 31 and the left frame component member 94 on which the left hook bar 31 is locked, and the right hook bar 32 and the right hook bar 32 are locked. The distance from the right frame constituent member 95 is kept constant. Therefore, for example, the wheelchair 92 has the left and right hook bars 31, 32.
The right hook bar 32 does not come into contact with the right frame constituent member 95 as in the case where the right hook bar 32 and the right frame constituent member 95 are largely separated from each other at a position displaced to the right from the center of the right frame constituent member 95. Therefore, it is possible to surely prevent a problem such as falling.

Then, further tension is applied to the left and right hook bars 31, 32 from the wire 35,
As shown in FIG. 6, the distal end portions of the left and right bearing members 44 and 45 that pivotally support the left and right base end members 42 and 43 are connected to the wire 35.
Driven in the pulling direction by the left and right bearing members 44, 45 pivotally supported by the left and right base members 46, 47.
Is rotated about its axis. Then, the left and right hook bars 31 and 32 are driven downward, whereby the bent portions 41 and 41 formed at the tips of the left and right hook bars 31 and 32.
However, the left and right frame components 94 and 95 are locked to the left and right frame components 94 and 95, and are fixed to the floor 91 while being urged downward.

As described above, since the wheelchair 92 has its frame 93 locked by the left and right hook bars 31 and 32 and is fixed to the floor 91 while being urged, the brake provided on the wheelchair 92 is also used. By doing so, the wheelchair 92 can be reliably fixed to the floor 91. Further, in the present embodiment, both drive wheels 71, 72 of the wheelchair 92 can be fixed by the left and right abutting members 65, 66 which are pressed against each other from the inside thereof, so that the fixing force of the wheelchair 92 can be further enhanced. it can. Therefore, the drive wheels 71, 7 are fixed as in the conventional case in which the wheelchair 92 is fixed by hanging the belt around the drive wheels 71, 72 of the wheelchair 92.
It is possible to reliably prevent careless release of the fixed state by a wheelchair user who has acquired the habit of gripping and rotating 2. Further, in comparison with the conventional method in which the belt is laid on the drive wheels 71 and 72 and the buckle provided at the end of the belt has to be locked to the mounting portion provided on the floor, The wheelchair can be fixed without the help of an attendant.

When the attendant pushes the wheelchair 92 or the wheelchair user moves the wheelchair 92 to position the drive wheels 71 and 72 in the recesses 15 and 16 of the apparatus main body 2, the center of the wheelchair 92 and the apparatus are moved. When the centers of the main body 2 are not aligned, that is, even when the main body 2 is arranged at a position displaced in the left-right direction,
The drive wheels 71, 72 can be fixed by the left and right contact members 55, 56, and the left and right hook bars 31, 32 can lock the left and right frame components 94, 95 at the position where the drive wheels 71, 72 are fixed. Therefore, the wheelchair 92 can be easily placed on the device body 2.

Further, the left and right abutting members 65, 66 for fixing the two drive wheels 71, 72 and the left and right base members 46, 47 for supporting the left and right hook bars 31, 32 are connected by left and right connecting members 55, 56. At the same time, since it is moved in the separating direction by the moving motor 84,
Both drive wheels 71, 72 and left and right frame constituent members 94, 9
The left and right abutting members 65, 5 are distinguished from each other without distinguishing between an adult wheelchair and a child wheelchair having a large separation distance of 5.
66 and the left and right hook bars 31, 32 can be securely fixed.

In this embodiment, the wheelchair 9
In addition to the frame fixing device 3 for fixing the second frame 93, the wheelchair fixing device 1 provided with the drive wheel fixing device 4 for fixing the drive wheels 71, 72 of the wheelchair 92 has been described as an example. The fixing device 3 may be provided in front and rear positions of the wheelchair 92 with the drive wheels 71, 72 sandwiching the axles.

That is, as shown in FIG. 13 (only the left side is shown), the left and right hooking mechanisms 33 and 34 of the frame fixing device 3 and the left and right blocks 61 and 62 supported by the slide rails 82 are left and right connected. Members 55, 56
And the left and right connecting members 55 and 56 penetrating rearward may be provided with the left and right hooking mechanisms 33 and 34 having the same structure as described above. In this case, the wheelchair 92 frame 93
The left and right frame constituent members 94, 95 of the drive wheels 71, 7
Since it is possible to fix the vehicle in the front and rear positions with the second axle sandwiched therebetween while being biased downward, it is possible to enhance the stability during the fixation.

Further, one wire 35 for driving both the front hooking mechanism 33 on the left side and the rear hooking mechanism 33 on the left side is arranged between the hooking mechanisms 33, 33, and in the middle of the wire 35, The wire 35 is movably inserted, and an intermediate traction member 102 for pulling the wire 35 is provided. The intermediate traction member 102 is connected to a traction wire 103 wound by a drive motor. As a result, either one of the bent portion 41 of the left front hook bar 31 and the wheelchair frame is engaged, and the bent portion 41 of the left rear hook bar 31 and the wheelchair frame are engaged. Is the wire 35 at the intermediate traction member 102 part.
The drive motor is prevented from stopping in a state in which one side is engaged and the other side is disengaged.

Then, as shown in FIG. 13, the wheelchair 9
A left block 61 supported by a slide rail 82 along the second axle is provided with a limit switch 101 that projects laterally and that operates when pressed by the left drive wheel 71 of a wheelchair 92. Further, FIG. 13 shows the left side of the main part of the apparatus, the same mechanism is also on the right side, and the limit switch 101 that operates when pressed by the right drive wheel 72 is provided in the right block 62. . When any one of the left block 61 and the left limit switch 101, the right block 62 and the right limit switch 101 and the limit switch come into contact with one driving wheel, the one limit switch is activated to generate a signal. At the same time, the slide of one block stops and the other block and limit switch continue to slide. When the other block and limit switch also come into contact with the other drive wheel, the other limit switch issues a signal, and the control device (not shown) shuts off the power supply to the moving motor by the signals from both the left and right limit switches,
The left and right blocks stop while being separated from the left and right drive wheels by the same size. In this way, limit switch 1
By providing 01 as a movement stopping means for cutting off the supply of electric power to the moving motor 84, the distance between the left and right hook bars 31 and 32 and the left and right frame constituent members 94 and 95 can be reduced when the moving motor 84 moves. Since the wheelchair 92 can be kept constant at all times, the wheelchair 92 can be fixed even if the center of the wheelchair 92 is displaced from the center of the device body 2 in either the left or right direction. Since it is not necessary to stop the wheelchair in the center accurately, the wheelchair can be operated easily, and the left and right frame components 9
It is possible to securely fix the wheelchair for adults and the wheelchair for children having different distances of 4, 95 without distinction.

Further, the wheelchair fixing device 1 may be constituted only by the frame fixing device 3 for fixing the frame 93. In this case, the frame fixing device 3 is provided with hooking mechanisms at two positions on the left side of the device main body 2 with the drive wheel 71 sandwiched therebetween and two positions on the right side with the drive wheel 72 sandwiched between two front and rear regions. In order to absorb the difference in operation between the hooking mechanisms, the hooking mechanism and the driving device are connected to each other through the intermediate traction member 102 shown in FIG. Although it may be provided so as to be driven by a motor, even if the center of the wheelchair 92 and the center of the device body 2 are deviated to the left or right, there is little difference in size (spacing) between the frame of the wheelchair 92 and the hook bar. Therefore, it is better to divide the left and right hooking mechanisms at the two front and rear parts by one drive motor and the two hooking mechanisms at the right and left front and rear parts by one drive motor. Of course, four drive motors may be provided respectively.

[0046]

As described above, according to the invention of claim 1, since the frame of the wheelchair is locked to the floor by the hook-shaped member and is biased to the floor, the wheelchair is provided on the wheelchair. The wheelchair can be securely fixed to the floor by using the brakes together. In addition, until the hook-shaped member of the hooking mechanism hits the frame, it rotates in an arc in the left and right direction, and after hitting the frame, it moves downward, so it moves downward depending on the type of wheelchair and manufacturer, etc. Even if the pods have different dimensions, the wheelchair frame can be fixed by absorbing this difference.

According to the second aspect of the present invention, since both drive wheels of the wheelchair can be fixed by the abutting members that are pressed against each other from the inside, the fixing force of the wheelchair can be increased and the left and right sides of the wheelchair can be increased. The left and right abutting members pressed against the drive wheels are slidably supported in the width direction of the wheelchair, and the rotating means for rotating the feed screw for moving the abutting members has one abutting member. , When one drive wheel is abutted and its movement is stopped, only the other abutment member not abutting the drive wheel continues to move and abuts the other drive wheel and stops, fixing both drive wheels At the same time, the centers of both contact members can be located at the centers of both drive wheels. Therefore, whether the wheelchair for adults has a long distance between the left and right frame components or the wheelchair for children with a short distance between the left and right frame components, and the distance between the left and right frame components by the wheelchair manufacturer. Even if there is a difference between the two, even if the center of the wheelchair and the center of the device main body are displaced from each other, both drive wheels can be fixed.

Further, in the invention of claim 3, the left and right abutting members pressed against the left and right driving wheels of the wheelchair are slidably supported in the width direction of the wheelchair, and the both abutting members are moved. In the rotating means for rotating the feed screw, when one abutting member abuts on one driving wheel and its movement is stopped, only the other abutting member not abutting on the driving wheel continues to move. The driving wheels are brought into contact with the driving wheels to stop, the driving wheels are fixed, and the centers of the abutting members can be located at the centers of the driving wheels.

In addition, the left and right slide members moved by the feed screw are provided with the left and right hooking mechanisms provided with the left and right hook-shaped members via the left and right connecting members, and the centers of the left and right hook-shaped members are in contact with each other. Since it is located at the center of the frame of the wheelchair fixed by the contact member, the distance between the left hook-shaped member and the left frame constituent member to which the left hook-shaped member is locked, and the right hook-shaped member. The distance between the right hook-shaped member and the right frame constituent member with which the right hook-shaped member is locked can be always kept constant. Therefore, even for an adult wheelchair with a long distance between the left and right frame components, even for a child wheelchair with a short distance between the left and right frame components,
In addition, even if there is a difference in the separation distance between the left and right frame component members depending on the wheelchair manufacturer, or even if the center of the wheelchair and the center of the device main body are displaced from each other, the left and right frame members by the left and right hook-shaped members are arranged. It is possible to reliably engage the constituent members. Further, since the frame of the wheelchair can be locked to the floor by the left and right hook-shaped members and can be fixed while being biased to the floor, the same effect as that of claim 1 can be obtained. Furthermore, since both drive wheels of the wheelchair can be fixed by the abutting members that are pressed against each other from the inside, the fixing force of the wheelchair can be further increased.

Further, also in the case of the invention of claim 4, as in the case of claim 1, since the frame of the wheelchair is locked to the floor by the hook-shaped member and is biased to the floor, By using the brake provided in the wheelchair together, the wheelchair can be securely fixed to the floor. In addition, until the hook-shaped member of the hooking mechanism hits the frame, it rotates in an arc in the left and right direction, and after hitting the frame, it moves downward, so it moves downward depending on the type of wheelchair and manufacturer, etc. Even if the pods have different dimensions, the wheelchair frame can be fixed by absorbing this difference. In addition, since the left and right frame constituent members that form the frame are locked and urged by the hook-shaped members at the front and rear positions with the drive wheel sandwiched therebetween, stability when fixed by the hook-shaped members is high. Can be further increased.

In the case of the invention of claim 5, as in the case of claim 4, the frame of the wheelchair is locked to the floor by the hook-shaped member and is urged against the floor. By using the brake provided on the wheelchair together, the wheelchair can be securely fixed to the floor. In addition, until the hook-shaped member of the hooking mechanism hits the frame, it rotates in an arc in the left and right direction, and after hitting the frame, it moves downward, so it moves downward depending on the type of wheelchair and manufacturer, etc. Even if the pods have different dimensions, the wheelchair frame can be fixed by absorbing this difference. Further, since the left and right frame constituent members constituting the frame are locked and urged by the respective hook-shaped members at the front and rear positions with the drive wheel sandwiched therebetween, stability at the time of fixing by the respective hook-shaped members is improved. It can be further increased.

Further, as in claim 3, the left and right connecting members moved by the rotating means for rotating the feed screw,
A left and right hooking mechanism having left and right hook-shaped members is provided. Since the centers of both hook-shaped members are located at the center of the frame of the wheelchair, the left hook-shaped member and the left hook-shaped member are locked. Distance from the left frame component, and
The separation distance between the right hook-shaped member and the right frame constituent member to which the right hook-shaped member is locked can always be kept constant. Therefore, even if the wheelchair for adults has a long distance between the left and right frame constituent members or the wheelchair for children has a short distance between the left and right frame constituent members, the center of the wheelchair is displaced from the center of the device body. Even when they are arranged, the left and right hook-shaped members can be reliably locked to the left and right frame constituent members.

As described above, the belt body is hung on the driving wheels of the wheelchair and the buckle provided at the end portion of the belt body must be locked to the mounting portion provided on the floor. Compared with, the wheelchair can be fixed without relying on the attendant, and the wheelchair can be easily fixed even by the attendant.

[0054]

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing the inside of the apparatus main body according to the same embodiment.

FIG. 3 is a perspective view showing a left and right hooking mechanism in the same embodiment.

FIG. 4 is a side view showing a state in which the left and right hooking mechanisms in the same embodiment are folded down.

FIG. 5 is an explanatory diagram showing an operating state of the left and right hooking mechanisms in the same embodiment.

FIG. 6 is an explanatory diagram showing an operating state of the left and right hooking mechanisms subsequent to FIG.

FIG. 7 is an enlarged view of a main part showing the inside of the apparatus main body according to the same embodiment.

FIG. 8 is a perspective view showing a drive wheel fixing device in the same embodiment.

FIG. 9 is an explanatory diagram showing an operating state of the drive wheel fixing device in the embodiment.

FIG. 10 is an explanatory diagram showing an operating state of the left hooking mechanism and the drive wheel fixing device in the embodiment.

FIG. 11 is a perspective view showing a usage state of the embodiment.

FIG. 12 is a side view showing a usage state of the embodiment.

FIG. 13 is a perspective view showing another embodiment of the present invention.

FIG. 14 is a plan view showing a conventional example.

FIG. 15 is a perspective view showing a use state of the wheelchair fixing device in the conventional example.

[Explanation of symbols]

1 Fixing device for wheelchair 31 Left hook bar 32 Right hook bar 38 Drive motor 46 Left base member 47 Right base member 55 Left connecting member 56 Right connecting member 65 Left contact member 66 Right contact member 71 left drive wheel 72 right drive wheel 84 Drive motor 91 floors 92 Wheelchair 93 frames 94 Left frame components 95 Right frame components 101 limit switch

Claims (5)

(57) [Claims] 1. A wheelchair fixing device for fixing left and right frame constituent members, which are provided on left and right side portions of a wheelchair and extending in the front-rear direction, to a floor, the device main body being fixed to the floor, A pair of left and right hooking mechanisms, which are provided in the main body of the apparatus and are releasably locked to the left and right frame constituent members, respectively, are provided, and the left and right hooking mechanisms are rotatably supported by the main body of the apparatus. No. 1 link, a first spring for urging the first link in a direction to maintain the upright state, and a second link rotatably supported by an upper end portion of the first link. A second spring that biases the second link in a direction in which the second link is maintained and has a smaller biasing force than the first spring; and one free end of the second link. Provided in the department, A hook-shaped hook-shaped member having a length capable of contacting a corresponding frame constituent member when the second link rotates, and the other free end portion of the second link, Second
Driving means for driving the link in a rotating direction, and the second link is rotated in accordance with the operation of the driving means to bring the hook-shaped member into contact with a corresponding frame constituent member. And the contact of the hook-shaped member prevents rotation of the second link and starts rotation of the first link,
When the hook-shaped member slides on the corresponding frame component member and moves downward while sliding, the hook-shaped member is locked to the corresponding frame component member as the hook-shaped member moves downward. A locking device for a wheelchair, characterized in that it is configured to be capable of forming a locked state of urging downward. 2. A wheelchair fixing device for fixing left and right drive wheels of a wheelchair to a floor, the device main body being fixed to the floor, and positioning means for positioning the front and rear positions of the left and right drive wheels with respect to the device main body. A slide rail that extends along the width direction of the wheelchair positioned by the positioning means and is fixed to the device body, and a pair of left and right slide members slidably provided along the slide rail. A restriction means for restricting a range of movement of the left and right slide members in a direction in which the left and right slide members come close to each other, and a pair of left and right abutting members which are respectively provided on the left and right slide members and which can abut the left and right drive wheels, respectively. A supporting member provided on one of the left and right slide members and rotatably supporting a feed screw extending toward the other slide member; A rotation means for rotating the feed screw supported on the other slide member, which is provided on the other slide member, is screwed into the feed screw, and the left and right slide members are brought closer to each other as the feed screw rotates; A screwing member that moves in a separating direction, and slides the left and right sliding members in a direction in which they separate from each other as the feed screw rotates, and abuts on one of the left and right sliding members. When a member comes into contact with the corresponding drive wheel and its sliding is blocked, the abutment member provided on the other slide member slides until it comes into contact with the corresponding drive wheel. When the left and right slide members are slid toward each other and the movement of one of the left and right slide members is restricted by the restricting means, the other slide part is Wheelchair fixation device movement is characterized by being configured to slide up is regulated by the regulating means. 3. A wheelchair fixing device for fixing left and right frame constituent members, which are provided on the left and right side portions of a wheelchair, and which extend in the front-rear direction, and left and right driving wheels, to the floor. An apparatus main body, a pair of left and right hooking mechanisms provided on the apparatus main body and releasably locked to the left and right frame constituent members, and provided on the apparatus main body, the left and right drive wheels are pressed from a side portion. A driving wheel fixing mechanism, the driving wheel fixing mechanism including positioning means for positioning the front and rear positions of the left and right driving wheels with respect to the apparatus body, and extending along the width direction of the wheelchair positioned by the positioning means. And a pair of left and right slide members slidably provided along the slide rails, and a pair of left and right slide members, and the left and right slide portions. Restricting means for restricting the range of movement of the members in the direction in which they approach each other; left and right abutting members that are respectively provided on the left and right slide members and that can abut against the left and right drive wheels; and A support member rotatably supporting a feed screw provided on one side and extending to the other slide member side, a rotating means for rotating the feed screw supported by the support member, and a support member provided on the other slide member. The left and right slide members are screwed to the feed screw and move with the rotation of the feed screw to move the left and right slide members toward and away from each other. Sliding the left and right slide members in a direction in which they are separated from each other, and an abutting member provided on one of the left and right slide members abuts on a corresponding drive wheel to slide the slide wheel. When blocked, the contact member provided on the other slide member slides until it contacts the corresponding drive wheel, while the reverse rotation of the feed screw causes the left and right slide members to slide toward each other, When the movement of one of the left and right slide members is regulated by the regulating means, the movement of the other slide member is slid until the movement is regulated by the regulating means. A state in which the left and right hooking mechanisms are respectively connected to the left and right slide members via a first link rotatably supported by each of the left and right connection members, and the first link is erected. A first spring biased in a direction to maintain the second link, a second link rotatably supported on an upper end portion of the first link, and a second link. And a second spring having a biasing force smaller than that of the first spring and biasing the link in a direction in which the link is maintained in a tilted state, and provided at one free end of the second link, A hook-shaped left and right hook-shaped member having a length capable of contacting a corresponding frame constituent member when the second link rotates, and the other free end portion of the second link, The second
Drive means for driving the link in the rotating direction, and the second link is rotated in accordance with the operation of the drive means to bring the hook-shaped member into contact with the corresponding frame constituent member. In the contact state, the rotation of the second link is blocked by the contact of the hook-shaped member, and the rotation of the first link is started.
When the hook-shaped member slides on the corresponding frame component member and moves downward while sliding, the hook-shaped member is locked to the corresponding frame component member as the hook-shaped member moves downward. A locking device for a wheelchair, characterized in that it is configured to be capable of forming a locked state of urging downward. 4. A wheelchair fixing device for fixing left and right frame constituent members extending in the front-rear direction, which are provided on left and right side parts of a wheelchair, to a floor, the device main body being fixed to the floor, A pair of front left and right hooking mechanisms that are provided on the device body and that are detachably engaged with the left and right frame components on the front side of the drive wheel of the wheelchair; and the wheelchair provided on the device body. A pair of rear left and right hooking mechanisms that are releasably locked to the left and right frame constituent members on the rear side of the drive wheels, and each of the hooking mechanisms is rotatably supported by the apparatus main body. First link, a first spring urging the first link in a direction to maintain the upright state, and a first spring rotatably supported by an upper end portion of the first link. 2 links and the first A second spring that biases the second link in a direction in which the second link is maintained and has a smaller biasing force than the first spring, and is provided at one free end of the second link. , A hook-shaped hook-shaped member having a length capable of contacting a corresponding frame component when the second link rotates, and a second free end of the second link, The second
Drive means for driving the link in the rotating direction, and the second link is rotated in response to the operation of the drive means so that the hook-shaped member contacts the corresponding part of the frame component. A contact state in which they contact each other, and rotation of the second link is blocked by the contact of the hook-shaped member, and rotation of the first link is started.
When the hook-shaped member slides on the corresponding frame component member and moves downward, the hook-shaped member is attached to a portion of the corresponding frame component member as the hook-shaped member moves downward. A fixing device for a wheelchair, which is configured to be capable of forming a locked state in which it is stopped and biased downward. 5. A wheelchair fixing device for fixing left and right frame constituent members extending in the front-rear direction, which are provided on left and right side parts of a wheelchair, to a floor, the device main body being fixed to the floor, Positioning means for positioning the front and rear positions of the left and right drive wheels with respect to the device body; a slide rail extending along the width direction of the wheelchair positioned by the positioning means and fixed to the device body; A pair of left and right slide members provided slidably along the rails, a restriction means for restricting a moving range of the left and right slide members in directions close to each other, and the left and right drive members respectively provided on the left and right slide members. A left and right limit switch that operates when it comes into contact with a wheel, and one of the left and right slide members that is provided to the other slide member side. A support member that rotatably supports an outgoing feed screw, a rotation unit that rotates the feed screw supported by the support member, and a rotation member that is provided on the other slide member and that is screwed into the feed screw Stopping means for stopping the rotation by the rotating means when both the screwing member for moving the left and right slide members in a direction toward and away from each other and the left and right limit switch are operated in accordance with the rotation of the feed screw. With the rotation of the feed screw, the left and right slide members slide in directions away from each other, and a limit switch provided on one of the left and right slide members comes into contact with a corresponding drive wheel to operate. In addition, when the sliding of the one slide member is blocked, the limit switch provided on the other slide member drives the corresponding drive. When the feed screw rotates in the reverse direction, the left and right slide members are slid in a direction in which the left and right slide members approach each other, and one of the left and right slide members is restricted by the restricting means. The slide member is configured to slide until the movement of the other slide member is regulated by the regulating means, and is connected to the left slide member via a left connecting member, and on the front and rear sides sandwiching the drive wheel of the wheelchair. , A pair of left hooking mechanisms that are detachably engaged with the left frame constituent members, and a right slide member that is connected to the right slide member via a right connecting member. , A pair of right hooking mechanisms that are detachably engaged with the right frame constituent members, and the hooking mechanisms are connected to each other by corresponding connecting members. A rotatably supported first link, a first spring urging the first link in a direction to maintain the upright state, and an upper end portion of the first link to rotate. A freely supported second link; a second spring that biases the second link in a direction in which the second link is maintained in a tilted state and that has a biasing force smaller than that of the first spring; A hook-shaped hook-shaped member provided at one free end of the second link and having a length capable of contacting a corresponding frame constituent member when the second link rotates; A second link connected to the other free end of the second link
Drive means for driving the link in the rotating direction, and the second link is rotated in response to the operation of the drive means so that the hook-shaped member contacts the corresponding part of the frame component. A contact state in which they contact each other, and rotation of the second link is blocked by the contact of the hook-shaped member, and rotation of the first link is started.
When the hook-shaped member slides on the corresponding frame component member and moves downward, the hook-shaped member is attached to a portion of the corresponding frame component member as the hook-shaped member moves downward. A fixing device for a wheelchair, which is configured to be capable of forming a locked state in which it is stopped and biased downward.