JP4494273B2 - Bus wheelchair entry / exit device - Google Patents

Description

The present invention relates to a wheelchair boarding / alighting device for a bus that forms a slope at a boarding / exiting gate when a wheelchair user gets on / off the bus.

Conventionally, as a device of this type, a storage unit is disposed below the floor of a bus entrance and a slope member made of a single plate is stored in the storage unit so as to protrude (see, for example, Patent Documents). 1).
In use, this device makes the tip of the slope member drawn out from the opening of the storage part land on the sidewalk, and the slope member is passed between the floor of the vehicle and the sidewalk so that the user can get in and out of the wheelchair.
Japanese Patent Application No. 10-230791

However, since the slope member is composed of a single plate, at least a storage space corresponding to the length of the slope member is required in the vehicle width direction, and it is difficult to install in a small bus with a narrow vehicle width.
In addition, since the slope member is simply stretched between the underside of the vehicle and the sidewalk, there is a step between the upper end of the slope member and the floor surface, and the wheelchair user has a problem that cannot get on and off smoothly. .

In view of the above-described problems, the present invention provides a first traveling plate that is provided with an auxiliary plate that can be tilted downward at the front end of a storage unit disposed below the floor of a bus entrance and that can be raised and lowered in a horizontal state from the storage unit. When,
A second traveling plate that is superposed and supported on the first traveling plate so as to be able to advance and retract, is housed in a storage unit in a stacked state aligned with the first traveling plate, and can be advanced until the base end side is superposed only on the auxiliary plate. And a slope structure that can be stored in a folded state in the storage portion on the second travel plate, and the slope structure is fixed on the second travel plate from the distal end to the proximal end side. A first inclined plate, and a second end whose front end is pivotally supported by the base end of the second traveling plate so as to be folded back on the first inclined plate, and the rear end is hooked on the floor in the unfolded state. There is provided a wheelchair getting-on / off device for a bus comprising an inclined plate and a joint plate having one end supported on the front end of the second inclined plate and the other end abuttingly mounted on the rear end of the first inclined plate.
As a result, the slope structure provided on the second traveling plate is folded, and the first traveling plate and the second traveling plate superimposed and supported on the first traveling plate are aligned and stored in the storage unit. Thus, the storage state is made compact to reduce the size of the storage unit.
During use, the base plate side of the second travel plate overlaps with the auxiliary plate at the front end of the first travel plate pulled out from the storage unit, so that the second travel plate is bent downward together with the auxiliary plate, and the front end is landed on the sidewalk. In such a state, the first inclined plate, the joint plate and the second inclined plate are continuous from the sidewalk to the floor by unfolding the second inclined plate on the second traveling plate and hooking the rear end on the floor. A slope with no step is formed.

Further, at the base end of the first travel plate, a lever that is movable forward and backward on the track of the base end of the second travel plate and urged in the forward direction, and a storage portion according to the advance and retreat of the lever are provided. Retracting restraining means comprising a latch that is movable forward and backward with respect to the inner wall and that engages with a latch receiver recessed in front of the inner wall in a state in which the first traveling plate protrudes from the storage portion is provided. Is provided with a locking means that automatically engages the storage portion in the storage state in the storage portion and manually releases the engagement with the storage portion.
By configuring in this way, it is possible to prevent the first and second traveling plates from protruding freely from the storage unit, to hold the protruding state of the first traveling plate drawn out from the storage unit, or to maintain such a protrusion. The state can be released by the storing operation of the second traveling plate.

In short, the invention according to claim 1 is the first traveling plate that is provided with an auxiliary plate that can be tilted downward at the tip of the storage unit disposed below the floor of the bus entrance and that can be raised and lowered in a horizontal state from the storage unit. And a second support that is superposed and supported on the first travel plate so as to be able to advance and retreat, is accommodated in the storage unit in a stacked state aligned with the first travel plate, and can be advanced until the base end side is superposed only on the auxiliary plate. By providing a traveling plate and a slope structure that can be stored in a folded state in the storage unit on the second traveling plate, the first and second traveling plates are aligned in the storage unit. Since the slope structure is stored in a folded state on the second traveling plate, the storage state can be made compact, thereby reducing the height and depth of the storage portion, and reducing the overall size. Installation space in the vehicle. Can be easily installed on not only large and medium-sized vehicles but also small vehicles by shortening the depth corresponding to the vehicle width direction. Can be improved.
In use, when the base end side of the second traveling plate is superposed on the auxiliary plate at the distal end of the first traveling plate that is horizontally projected from the storage portion, the second traveling plate is tilted downward together with the auxiliary plate, and the distal end of the second traveling plate is tilted. You can land on a sidewalk or a road without a sidewalk.
The slope structure has a first inclined plate fixed on the second traveling plate from its distal end to the proximal end side, and a front end of the second traveling plate so as to be folded back on the first inclined plate. A second inclined plate that is pivotally supported by the base end of the first inclined plate, and the rear end is hooked on the floor in the unfolded state, and one end is supported on the front end of the second inclined plate, and the other end is on the rear end of the first inclined plate. In use, the second inclined plate on the second traveling plate landing on the sidewalk or the like with an appropriate gradient is developed and the rear end is hooked on the entrance / exit floor. By simply doing, a series of slopes without gaps and steps formed by the first and second inclined plates and the joint plate can be bridged between the landing point and the floor, and wheelchair users can easily get on and off.
Further, since the joint plate is configured as described above, and one end thereof is supported at a fixed position on the front end of the first inclined plate, the folded state and the expanded state of the second inclined plate, and the expanded state (slope formation). In the state, even if the gradient of the first and second inclined plates is displaced by the location where the second traveling plate is landed (the sidewalk or the road without the sidewalk), the other end always contacts the rear end of the first inclined plate. In the folded state, it can be placed in a flat manner between the first and second inclined plates, and in the unfolded state, it is spanned without causing a gap or a step between the first and second inclined plates. And can maintain a slope with a series of slopes.

Since the invention which concerns on Claim 2 is comprised as mentioned above, in the accommodation state to a storage part, the 2nd traveling board presses the proximal end of the 1st traveling board via a lever, Since it is in a laminated state aligned with the first traveling plate and the movement within the storage portion is prevented by the locking means, it is possible to prevent the first traveling plate from protruding from the storage portion, and the first traveling plate in the storage portion can be prevented during vehicle travel. The second traveling board does not jump out without permission.
Also, when pulling out the first and second travel plates from the storage portion for slope formation, manually releasing the engagement with the storage portion by the locking means, the lever of the second travel plate is released,
At the same time, the latch can come into contact with and slide on one inner wall of the storage portion, and the second traveling plate automatically protrudes forward from the storage portion due to the biasing force of the lever. Subsequent drawer operations can be performed smoothly.
Then, when the second traveling plate is pulled out and the projection of the first traveling plate is completed and the latch that is in sliding contact with the inner wall of the storage portion corresponds to the latch receiver, the latch is engaged with the latch receiver and the first traveling plate is engaged. The protruding state of the plate can be held, and such holding is automatically performed by only a series of pulling operations of the first and second traveling plates, and no separate operation is required, so that it can be reliably moved forward and backward of the first traveling plate. The second traveling plate is bent with the auxiliary plate at the front end of the first traveling plate, and the second traveling plate is formed with the first, second inclined body and joint plate. It is possible to securely and stably support the sloped state of the slope, ensuring the safety of wheelchair users when getting on and off.
Furthermore, when storing the first and second travel plates in the storage portion, when the slope structure is folded and the second travel plate is pushed toward the storage portion on the first travel plate, the base end of the second travel plate is When the lever is pressed and the latch is disengaged from the latch receiver, the first travel plate is pushed into the storage unit together with the second travel plate via the lever, and the two are aligned in the storage unit. Then, since the locking means of the second traveling plate is automatically engaged with the storage portion, the operation of releasing and storing the projecting holding state of the first traveling plate and the storing operation are performed only by the operation of storing the second traveling plate. It is possible to perform an operation to prevent the traveling plate from protruding from the storage portion, and it is possible to reduce the burden on the driver who performs the operation exclusively.

Embodiments of the present invention will be described below with reference to the drawings.
The wheelchair boarding / alighting device according to the present invention is applied to a bus, and a storage unit 2 is disposed under a floor 1 of a vehicle entrance / exit (not shown).
The storage unit 2 is provided with an auxiliary plate 3 that can be tilted downward at the tip, and a first traveling plate 4 that can be projected and retracted in a horizontal state from the storage unit 2, and can be moved forward and backward on the first traveling plate 4. A second traveling plate 5 that is superposed and supported and accommodated in the storage unit 2 in a stacked state aligned with the first traveling plate 4 and can be advanced until the base end side is superposed only on the auxiliary plate 3; On the plate 5, there is provided a slope structure 6 that can be stored in the storage portion 2 in a folded state.

The storage portion 2 has a lateral width substantially corresponding to the width of the entrance / exit and has a depth slightly longer than the entire length of the first travel plate 4 in the vehicle width direction of the vehicle, and an opening portion on the edge of the floor surface 1 of the entrance / exit 7 is formed in a flat box shape, and is fixed to the lower surface of the floor surface 1 via a spacer 8 on the upper surface thereof.
In addition, on the inner surface of the back plate of the storage unit 2 facing the opening 7, a buffer plate 2a made of synthetic rubber (not shown) whose base end is abutted when the first traveling plate 4 is stored is disposed.
On the left and right inner walls of the storage unit 2, U-shaped linear rails 9 whose open sides face each other are fixed over the entire length of the inner wall above a predetermined interval from the lower end of the inner wall.
In addition, a lid 10 that opens and closes the opening 7 via a hinge is provided at the lower edge of the opening 7 of the storage unit 2.
The lid 10 is provided with latches 12 detachably attached to the latching projections 11 projecting from the left and right of the upper end surface of the opening 7 on the left and right sides of the outer surface, and the elastic body made of synthetic rubber on the left and right sides of the inner surface. Project 13 and cover
The elastic body 13 is configured so that the distal ends of the first and second traveling plates 4 and 5 housed in a stacked state aligned with the storage portion 2 with the opening 7 closed by 10 are pressed against each other.

The main body 14 of the first traveling plate 4 has a rectangular substrate 16 provided with a plurality of punched holes 15 of a predetermined shape at appropriate positions for weight reduction, and side walls 17 having a predetermined height on the left and right side edges of the substrate 16. The front end side of the substrate 16 is cut out in a substantially concave shape with a width corresponding to the slope structure 6 over a predetermined length.
A pair of front and rear rollers 18, 18 a arranged so as to have a predetermined interval in the front-rear direction are projected on the base end side of each side wall 17 of the main body 14, and the rollers 18, 18 a roll into the linear rail 9. Arranged freely, and at the intermediate portion of the outer surface of each side wall 17, when the first traveling plate 4 is stored in the storage unit 2, the storage unit 2
A running wheel 19 that rolls on the inner bottom of each side wall 17 is provided, and a pair of front and rear guide rollers 20 and 20a are provided at the front end of each side wall 17, and the intermediate portion has a smaller diameter than the guide rollers 20 and 20a. A small-diameter roller 20b whose upper surface is tangent to the upper peripheral surface of the guide rollers 20 and 20a is disposed.

At the base end of the main body 14, a retraction inhibiting means 21 is provided for restricting the retreat of the first travel plate 4 in a state where the first travel plate 4 protrudes from the storage portion 2.
The reverse restraining means 21 includes a lever 22 that can move forward and backward on the track of the base end of the second traveling plate 5 and is urged in the forward direction, and one inner wall of the storage portion 2 according to the forward and backward movement of the lever 22 ( In the illustrated example, the latch 24 is configured to include a latch 24 that can move forward and backward with respect to a ceiling) and that engages with a latch receiver 23 that is recessed in front of the ceiling when the projection is completed.
The lever 22 is an elongated rectangular sliding contact plate 25 that slides on the inner base end side of the side wall 17 of the main body 14 so as to freely advance and retract.
The sliding contact plate 25 is formed by a tension spring 26 interposed between the front end of the sliding contact plate 25 and the inner surface of the side wall 17 in front of the forward / backward movement range of the sliding contact plate 25. It is biased forward.

The sliding contact plate 25 is provided with a long hole 28 in the axial direction in which a projecting shaft 27 provided on the inner base end side of the side wall 17 is slidably mounted in front of the sliding contact plate 25 to resist the biasing force of the tension spring 26. When the lever 22 is pushed rearward, the sliding contact plate 25 follows this, the front end 28a of the elongated hole 28 comes into contact with the protruding shaft 27, and when the pressing against the lever 22 is released, the sliding force is applied by the urging force of the tension spring 26. The contact plate 25 advances, and the rear end 28b of the elongated hole 28 comes into contact with the protruding shaft 27.

The latch 24 is slidably arranged on the side wall 17 between the rollers 18 and 18a, and the base end close to the front roller 18 side is pivotally attached to the projecting shaft 27 extending to the outer surface of the side wall 17 so as to swing up and down. An arc hole 29 is provided which is made of a formed plate material and protrudes downward from the substantially intermediate portion to the tip.
The side wall 17 between the rollers 18 and 18a is provided with a guide hole 30 having the same shape on the same axis as the long hole 28 of the sliding contact plate 25. The guide hole 30 and the arc hole 29 are provided with the sliding contact plate 25. A sliding pin 31 protruding from the sliding contact surface with the side wall 17 is slidably mounted, and the sliding pin 31 has a rear end 28b of the long hole 28 of the sliding contact plate 25 in contact with the protruding shaft 27. In this state, the latch 24 is located at the front end 29a, 30a where the circular arc hole 29 and the guide hole 30 overlap each other, and the engaging projection 24a provided at the upper end of the latch 24 is swung so as to advance upward (see FIG. 6). In addition, the engaging protrusion 24a is retracted downward at the rear end 29b, 30b where the arc hole 29 and the guide hole 30 overlap with the front end 28a of the long hole 28 of the sliding contact plate 25 in contact with the protruding shaft 27. (See Fig. 11)
reference).
Therefore, in the state where the proximal end of the second traveling plate 5 does not press the lever 22 and the first traveling plate 4 is fully projected from the storage portion 2, the engagement protrusion of the latch 24 is urged by the urging force of the tension spring 26 as shown in FIG. 24a
Maintaining the upper position so as to engage with the latch receiver 23 provided in front of the ceiling of the storage unit 2,
The movement of the first travel plate 4 is suppressed.

The auxiliary plate 3 is composed of a substrate 32 and a side wall 33 like the main body 14, and the substrate 32 has a short overall length.
The width of the side wall 17 is slightly wider than the main body 14 as much as the thickness of the side wall 17, and the front end side of the substrate 32 leaves a predetermined width inward from the side wall 33, and the center thereof is cut out over a predetermined length to form an elongated band. The band-shaped portion is formed as a distal end portion 32a, and the side wall 33 has a base arm extending rearward by a predetermined length to form a swing arm 34.
The swing arm 34 is pivotally attached to the outer surface of the distal end side of the side wall 17 of the main body 14 on the swing arm 34, and the base end is provided with a hook-like part 35 that is notched in a bowl shape. A circular protrusion 36 is provided below the outer surface of the side wall 17 of the main body 14 corresponding to the lower part. When the hook-shaped portion 35 contacts the circular protrusion 36, the substrate 32 of the auxiliary plate 3 is
The main body 14 in the horizontal state is located on the same plane as the substrate 16.
Accordingly, the auxiliary plate 3 is set so that it can tilt downward from the horizontal, but cannot tilt upward from the horizontal.

In front of and behind the inner surface of each side wall 33 of the auxiliary plate 3, the guide rollers 20, 20 a are placed in a horizontal state with the substrate 32.
Guide rollers 37 and 37a having the same diameter and the same height as the shaft,
, 37a, a stopper 38 of the second traveling plate 5 is formed in a rectangular parallelepiped shape having a predetermined length in the front and rear portions on the outer edge portion on the substrate 32 corresponding to the space 37a.

The second traveling plate 5 is provided with a U-shaped guide rail 39 having substantially the same overall length as the first traveling plate 4 on the left and right side edges and the open side facing outward. A beam plate 40 is installed between the sides.
The distance between the guide rails 39 is shorter than the lateral width of the auxiliary plate 3, and the guide rollers 20, 20 a, 37, and 37 a are inserted into the recessed grooves of the guide rail 39 on the first traveling plate 4 so as to be freely rotatable. It is made up of.
On the bottom 39a of the guide rail 39, the width of the auxiliary plate 3 extends from the front end side to the base end side.
By forming an elongated strip-shaped notch equivalent to the lateral width of the stopper 38 provided on 32, contact stoppers 41, 41a with the stopper 38 are provided before and after the notch, and a stopper is provided between the corresponding stoppers 41, 41a.
The second traveling plate 5 is superposed on the first traveling plate 4 so that 38 is arranged.
Thereby, in a state where the base end side of the second traveling plate 5 is advanced only until the auxiliary plate 3 is superposed,
The rear contact stop 41a abuts the rear end of the stopper 38, and the front end of the second traveling plate 5 is aligned with the first and second traveling plates 4 and 5 arranged on the auxiliary plate 3. Stop part 41 is a stopper
It is made to contact the front end of 38.
Further, in the above-described laminated state in which the distal end side of the guide rail 39 is disposed on the distal end portion 32a of the auxiliary plate 3, the inner edge end surface 32b of the distal end portion 32a and the standing wall of the guide rail 39 corresponding to the inner edge end surface 32b. The back surface 39b is set to be positioned on the same vertical plane.
In addition, a rising portion of the flat portion of the L-shaped bracket 42 is fixed to the front end side of the standing wall rear surface 39b of each guide rail 39 so as to incline in an uphill shape. The first inclined plate 43 is fixed to the second traveling plate by screwing the front end side of the first rectangular inclined plate 43 that is a component of the body 6 and has a lateral width slightly shorter than the distance between the guide rails 39. 5 is fixed in an uphill shape over the beam plate 40 on the base end side from the tip.

At the tip of the second traveling plate 5, there is provided locking means 44 that automatically engages with the storage unit 2 in the storage state in the storage unit 2 and manually releases the engagement with the storage unit 2.
The locking means 44 is provided with a locking piece 45 slidably arranged at the tip of the standing wall rear surface 39b of the guide rail 39 so as to be swingable up and down.
The lock piece 45 is provided with a handle 46 protruding from the tip of the guide rail 39 at its tip, and a narrow gap X between the first inclined plate 43 and the guide rail 39 by the rocking of the lock piece 45 at the lower end on the tip side. It consists of a plate material with a claw portion 47 projecting freely below the guide rail 39 through the lock piece.
The base end of 45 is pivotally attached to the pivot 48 projecting from the rear wall 39b of the guide rail 39, and the pivot
A torsion coil spring 49 is wound around 48, and one end of the torsion coil spring 49 is hooked on the flat portion of the bracket 42, and the other end is hooked on a spring receiving portion 50 projecting from the lock piece 45. The guide rail 39 is biased to protrude downward.
Further, an arc-shaped sliding hole 51 protruding forward is provided at the front end side of the lock piece 45, and the sliding hole 51 slides on a circular convex shaft 52 protruding from the standing wall back surface 39b of the guide rail 39. It is mounted freely and regulates the vertical swing range of the lock piece 45.
Then, when the second traveling plate 5 is stored in the storage unit 2, the stacked state of the first and second traveling plates 4, 5 is aligned, and the leading end of the guide rail 39 is disposed on the leading end portion 32 a of the auxiliary plate 3. At the same time, when the claw portion 47 corresponds to the latching hole 53 that is recessed in front of the inner bottom of the storage portion 2, the claw portion 47 is separated from the gap X between the first inclined plate 43 and the guide rail 39 by the biasing force of the torsion coil spring 49. , The tip 32 corresponding to the gap X
Through the space adjacent to the inner edge surface 32b of a (the space formed by cutting out the front end side center of the auxiliary plate 3), the hooking hole 53 is automatically engaged, and in this engaged state, the torsion coil spring 49 is attached. By manually pushing up the handle 46 against the force, the claw portion 47 is detached from the retaining hole 53 and the engagement is released (see FIG. 12).

The slope structure 6 has a first inclined plate 43 provided on the second traveling plate 5 as described above, and a front end at the base end of the second traveling plate 5 so as to be foldable on the first inclined plate 43. A second inclined plate 54 that is pivotally supported and whose rear end is hooked on the floor 1 in the unfolded state, and a support shaft 55 provided at one end on the front end of the second inclined plate 54 are supported so as to move up and down. The joint plate 56 has an end abuttingly mounted on the rear end of the first inclined plate 43.
The second inclined plate 54 has a horizontal rectangular substrate 57 that has substantially the same width as the first inclined plate 43 and has a rear end slightly bent to the back side, and extends from the front to the rear end side of the left and right side edges of the substrate 57. And an L-shaped guard member 58 on which a substrate 57 is fixed on a flat portion. The lower part of the front end of the standing wall of the guard member 58 is located behind the rear end of the first inclined plate 43. The corresponding guide rail 39 is pivotally attached to the upper part of the base end of the standing wall back surface 39a.
When the second inclined plate 54 is folded back onto the first inclined plate 43, the upper edge of the standing wall of the guard member 58 is disposed in the gap X between the first inclined plate 43 and the guide rail 39, and the upper end edge thereof. The rear end is placed on the flat portion of the bracket 42, and the second inclined plate 54 is set so as to fit on the second traveling plate 5 without protruding from the upper end of the guide rail 39.

The joint plate 56 is a horizontal rectangular plate having the same width as the substrate 57 of the first inclined plate 43 and the second inclined plate 54 and a length extending from the front end of the substrate 57 to the rear end of the first inclined plate 43. An elongated strip-shaped support shaft 55 is provided on the left and right side edges of one end of the guide member 58, and the support shaft 55 is formed between the pivot shaft 59 pivotally attached to the second traveling plate 5 and the front end of the substrate 57 on the standing wall of the guide member 58. In addition, the guide member 58 is inserted through a vertically-long rectangular bearing hole 60 penetrating above the upper surface of the flat portion.
Thereby, the joint plate 56 is supported by the lower end 60a of the bearing hole 60 in the unfolded state of the second inclined plate 54.
55 is located and is inclined to the first inclined plate 54 in front of the substrate 57 (see FIG. 5).
In the inverted state of the second inclined plate 54 folded back on 43, the support shaft 55 is positioned at the upper end 60b of the bearing hole 60 whose top and bottom are opposite to the above, and the second inclined plate 54 is parallel to the second inclined plate 54 below the second inclined plate 54. It is placed on one inclined plate 43, and is planarly interposed between the first inclined plate 43 and the second inclined plate 54 (see FIG. 10).
In the left and right side edges of the joint plate 56, a portion corresponding to the base end of the pivot 59 that bulges on the flat portion of the guard member 58 has a concave notch 61 so as not to interfere with the base end. As a result, the joint plate 56 supported between the guard members 58 can be inclined with an arbitrary gradient, and the other end is the first inclined plate.
54 is in contact with and placed on the rear end of the second traveling plate 5 so as to follow the gradient of the first inclined plate 43 that is displaced by the landing position of the tip of the second traveling plate 5, and the first inclined plate 43 and the second inclined plate 54 The interval is continuous.

On the surfaces of the first and second inclined plates 43 and 54 and the joint plate 56, a rectangular anti-slip sheet 62 is bonded to each of the left and right sides, and a plurality of horizontally long anti-slip sheets 62a are parallel to the center. The first inclined plate 43 is provided with a pull-out strap 63 (not shown in some drawings) at the front end intermediate portion, and the second inclined plate 54 is rotated at the rear end intermediate portion of the substrate 57. An operation strap 64 is provided.

Next, the operation of the wheelchair getting on / off device configured as described above will be described.
First, in the retracted state shown in FIG. 14, the slope structure 6 is folded on the second traveling plate 5, and the second traveling plate 5 is aligned and overlapped on the first traveling plate 4.
In the stacked state in which the first and second traveling plates 4 and 5 are aligned, the first traveling plate 4 is the second traveling plate 5.
(Guide rail 39) Since the base end is pressed via the lever 22, the base end of the first traveling plate 4 is abutted against a buffer plate 2a provided on the inner surface of the back plate of the storage unit 2 to be inside the storage unit 2. The second traveling plate 5 holds the pressure because the hook 47 of the locking piece 45 at the tip of the second traveling plate 5 is engaged with the latching hole 53 on the inner bottom of the storage unit 2. The movement is suppressed in the
Further, an elastic body 13 provided on the inner surface of the lid 10 that holds the opening 7 closed by the latch 12 is shown in FIG.
As shown in FIGS. 12 and 13, the auxiliary plate 3 of the first traveling plate 4 and the tip of the guide rail 39 of the second traveling plate 5 are pressed to prevent the movement in the storage unit 2 and rattling.

In use, the cover body is released from the above-mentioned stored state by disengaging the latch projection 12 by the latch 12.
The opening 7 is opened by turning 10 downward through a hinge.
In such a state, as shown in FIG. 12, the handle 46 of the lock piece 45 protrudes from the opening 7,
When the handle 46 is pushed up against the urging force of the torsion coil spring 49 and the engagement of the claw portion 47 with the retaining hole 53 on the inner bottom of the storage portion 2 is released, the engagement of the claw portion 47 causes the second traveling plate to move. 5 (guide rail 39) The lever 22 whose base end is pressed against the urging force of the tension spring 26 moves forward by the urging force and presses the second traveling plate 5 in the pulling direction. The tip of the plate 5 has an opening 7
At the same time, the latch 24 swings upward, and the engaging projection 24 a comes into contact with the ceiling of the storage portion 2.
When pulling out the pulling strap 63, the small diameter roller 20b, the guide roller 20
, 20a, 37, 37a roll to guide the guide rail 39 horizontally in the pulling direction, and the second traveling plate 5 travels on the first traveling plate 4 and is pulled out from the storage unit 2.
When the base end side of the second traveling plate 5 is positioned on the auxiliary plate 3 and the rear stopper 41a of the guide rail 39 contacts the rear end of the stopper 38, the first traveling plate 5 and the second traveling plate 4 together. At this time, the first traveling plate 5 advances horizontally from the storage unit 2 as the rollers 18, 18 a and the traveling wheels 19 travel in the linear rail 9 and the inner bottom of the storage unit 2. As the plate 5 advances, the engagement protrusion 24a of the latch 24 slides in the pulling direction on the ceiling of the storage portion 2.

When the first traveling plate 5 traveling in the pull-out direction protrudes a predetermined length from the storage portion 2 and reaches the protrusion completion position, the engagement protrusion 24a of the latch 24 that slides on the ceiling of the storage portion 2 corresponds to the latch receiver 23. Thus, the first traveling plate 4 is stopped and the movement thereof is suppressed.
In this state, the second traveling plate 5 is tilted downward together with the auxiliary plate 3, and the tip of the second traveling plate 5 is landed.
Since the tilt of the auxiliary plate 3 can be arbitrarily set, the tip of the second traveling plate 5 can be landed even on the sidewalk R shown in FIG. 3 or the road R1 without the sidewalk shown in FIG.
Here, when the second operation plate 64 is rotated by pulling up the rotation operation strap 64 and the rear end is hooked on the floor 1, the first inclination plate 43 and the joint plate 56 are hung on the sidewalk R and the floor 1. And the slope which the 2nd inclination board 54 followed was formed, and a wheelchair user gets on and off by passing on the slope.
When passing through the slope, a load is applied to the first traveling plate 4 supporting the slope in the storage direction of the storage unit 2, but the first traveling plate 4 is held in a protruding state from the storage unit 2 by the latch 24. Therefore, safety is ensured without moving backward.

When storing the slope, the second inclined plate 54 is rotated by the rotating operation strap 64 so that the rear end of the second inclined plate 54 is detached from the floor 1 and folded on the first inclined plate 43, and thereafter Auxiliary plate 3
When the second traveling plate 5 is pulled up to a horizontal position until the bowl-shaped portion 35 of the guide plate abuts on the circular protrusion 36, the guide rollers 37 and 37a of the auxiliary plate 3 and the guide rollers 20 and 20a of the main body 14 are connected in series. A track that guides 39 is formed.
When the second traveling plate 5 is pushed in as it is, the guide roller 20 is inserted into the guide rail 39 from its base end.
20a, a small-diameter roller 20b is inserted and the second traveling plate 5 is guided in the storing direction by the guide rollers 20 and 20a that roll by the movement of the guide rail 39, and the first traveling plate 4 (the auxiliary plate 3 and the main body 14). ) Drive on.
When the base end of the guide rail 39 presses the lever 22 against the urging force of the tension spring 26,
The latch 24 swings downward and the engagement with the latch receiver 23 by the engagement protrusion 24a is released.
As a result, the first travel plate 4 is pushed into the storage unit 2 together with the second travel plate 5, and the base end of the first travel plate 4 is stopped against the buffer plate 2 a on the inner surface of the back plate of the storage unit 2. The claw portion 47 of the lock piece 45 at the tip of the second traveling plate 5 slides while being pressed upward against the urging force of the torsion coil spring 49 on the inner bottom of the storage portion 2, so that the claw portion 47 is engaged with the retaining hole 53. , The claw portions 47 are automatically engaged with the retaining holes 53 by the urging force of the torsion coil spring 49, whereby the first and second traveling plates 4, 5 are maintained in the aligned stacked state. In the retracted state, the opening 7 is closed with the lid 2 and the latch 12 is engaged with the latching protrusion 11 to complete the storage.

It is a side view at the time of slope formation of a wheelchair getting on / off apparatus. It is a top view same as the above. It is an enlarged view of FIG. It is a side view of the state which changed the inclination of the slope. It is a principal part enlarged view of FIG. It is a principal part expanded sectional view which shows the protrusion completion state of a 1st travel board. It is a partially broken enlarged view of FIG. It is a side view which shows the state which folded the 2nd inclination board. It is a side view which shows the state which leveled the 2nd travel board. It is sectional drawing of the 2nd traveling board which shows the folded state of a slope structure. It is a principal part expanded sectional view which shows the state which the 2nd travel board pressed the lever. It is a principal part expanded sectional view which shows the state which accommodated the 1st, 2nd travel board in the storage part. It is a partially broken front view of the storage part which accommodated the 1st, 2nd traveling board. It is a front view of the storage part in the state where the lid was closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor 2 Storage part 3 Auxiliary board 4 1st traveling board 5 2nd traveling board 6 Slope structure
21 Means to prevent retreat
22 Lever
23 Latch holder
24 Latch
43 First inclined plate
44 Locking means
54 Second inclined plate
56 Joint plate

Claims (2)

An auxiliary plate that can be tilted downward is provided at the front end of the storage unit disposed under the floor of the bus entrance and exit, and a first traveling plate that can be moved in and out in a horizontal state from the storage unit, and the first traveling plate on the first traveling plate A second traveling plate that is superposed and removably supported, accommodated in a storage unit in a stacked state aligned with the first traveling plate, and capable of advancing until the base end side is superposed only with the auxiliary plate; and the second traveling plate A slope structure that can be stored in a folded state in the storage unit is provided on the second traveling plate, and the slope structure is fixed on the second traveling plate from the distal end to the proximal side, A second inclined plate whose front end is pivotally supported by the base end of the second traveling plate so that it can be folded back on the first inclined plate, and whose rear end is hooked on the floor in the unfolded state; A joint plate having one end supported on the front end of the plate and the other end abuttingly mounted on the rear end of the first inclined plate Door wheelchair getting on and off devices on bus characterized by. At the base end of the first travel plate, a lever that is movable forward and backward on the track of the base end of the second travel plate and urged in the forward direction, and an inner wall of the storage unit according to the advance and retreat of the lever In contrast, there is provided a reverse restraining means comprising a latch that engages with a latch receiver recessed in front of the inner wall in a state where the first traveling plate protrudes from the storage portion in a state in which the first traveling plate is fully projected. 2. The wheelchair boarding / alighting device for a bus according to claim 1, further comprising a lock means for automatically engaging the storage portion in a storage state in the storage portion and manually releasing the engagement with the storage portion.

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