JP6229348B2 - Wheelchair ramp board - Google Patents

Description

  The present invention relates to a slope board for getting on and off a wheelchair for a wheelchair user to get on and off a bus.

  With the promotion of barrier-free, the route bus has become a low floor, and it is possible to get on and off with a wheelchair by hanging a ramp board for wheelchair getting on and off from the floor to the road surface .

  The wheelchair boarding / exiting slope plate is connected to the edge of the entrance / exit of the bus with a hinge, etc. so that it can be pivoted and folded on the floor at all times. Inverting this from the floor surface and passing it over the road surface (Patent Document 1), Elevating step is provided at the entrance / exit so that it can be raised and lowered, and when getting on / off, the elevating step is lowered to the road surface to get on and off (patent) Various things such as literature 2) have been proposed.

  FIG. 3 shows the structure of a wheelchair entry / exit slope plate that is inverted from the floor of the bus. The slope plate 30 is attached to the hinge 32 at the edge 31 of the floor F of the entrance / exit P of the bus В. It can be rotated freely. The floor surface F of the entrance / exit P is formed with a recess 33 for storing when the slope plate 30 is folded.

  This slope board for getting on and off the wheelchair is folded so that the slope board 30 is stored in the recess 33 when not in use, and the back surface of the slope board 30 becomes substantially the same height as the floor surface F. When the driver opens the door D, the driver reverses the slope plate 30 from the floor surface F as shown in the figure, and the tip 34 of the slope plate 30 is landed on the road surface R, so that the driver can get in and out of the wheelchair. Yes.

  This slope board for getting on and off the wheelchair has a simpler structure than that of raising and lowering the floor of the entrance / exit of the bus as in Patent Document 2, and the slope board when not in use can be used as it is as the floor of the bus. There are benefits.

European Patent Application Publication No. 1837233 (A1) Specification JP 11-48867 A

  However, since the slope plate 30 is fixed to the edge 31 of the floor surface F by the hinge 32, the floor surface F of the bus B and the road surface R when the slope plate 30 is deployed are not parallel to each other, as shown in FIG. As described above, one end 34 of the slope plate 30 is lifted from the road surface R, and there is a problem that this becomes a step and cannot be easily transferred by a wheelchair.

  That is, the size of the front wheel FW of the wheelchair is 6 inches (152.4 mm) or 5 inches (127 mm), and the front wheel FW is provided so as to freely swing, so that one end 34 of the slope plate 30 is lifted. If this is the case, the front wheel FW will not be able to get over by hitting the lifted tip 34, or the front wheel FW will be turned to the side by shaking its head, which will cause problems that cannot be easily overcome for wheelchair users.

  In addition, even if the wheelchair can be transferred to the slope plate 30, when the lifted portion comes into contact with the road surface R due to the weight of the wheelchair and the user, local stress is concentrated on the hinge 32 or the slope plate 30 is deformed. There is a problem.

  In Patent Document 2, the lift step of the entrance / exit is directly lowered, a step extension plate is provided slidably on the lift step, and a ramp for a wheelchair is provided at the front end of the step extension plate, and the structure is complicated However, even if the bus floor and the road surface are not parallel, there is an advantage that it can be transferred without any trouble, but the structure is complicated.

  Accordingly, an object of the present invention is to provide a slope plate for wheelchair entry / exit that solves the above-mentioned problems and can be easily transferred even when the floor surface of the bus is not parallel to the road surface when transferring from the road surface to the reversing slope plate. There is to do.

  In order to achieve the above object, the present invention provides a wheelchair boarding / alighting slope plate provided with a slope plate via a hinge at the edge of a floor surface of a bus entrance / exit, wherein the slope plate is connected to the edge. A slope plate for getting in and out of a wheelchair, wherein a mounting plate of a hinge that is rotatably connected to the edge portion is attached to the edge portion via a cushion member.

  The hinge includes a shaft and a pair of mounting plates provided so as to be rotatable with respect to the shaft, and a shaft cylinder covering the shaft is alternately formed along the shaft integrally with the pair of mounting plates. A mounting groove for mounting the hinge mounting plate is formed in the edge portion and the slope plate, respectively, and a mounting plate is mounted in the mounting groove of the slope plate, and a cushion member is interposed in the mounting groove of the edge portion. The mounting plate is preferably mounted so as to be movable up and down.

  The edge portion is preferably provided with a support member that supports the center of the edge side attachment plate so that the longitudinal direction of the attachment plate swings.

  The cushion member is preferably made of rubber or a coil spring.

  The present invention exhibits an excellent effect that the tip of the slope plate can be adjusted to the road surface by the cushion member even when the floor surface of the bus and the road surface when the wheelchair rides on the slope plate are not parallel.

(A) Whole perspective view which shows one Embodiment of this invention, (b) is an expanded sectional view of the D section of Fig.1 (a). The use condition of this invention is shown, (a) is a figure which shows a use condition when the floor surface of a bus | bath and a road surface are parallel, (b), (c) is a floor surface of a bus | bath, and a road surface is not parallel. . It is a perspective view which shows a prior art example. In a prior art example, it is a figure which shows a state when the floor surface of a bus | bath and a road surface are not parallel.

  A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

  In FIG. 1A and FIG. 1B, a slope plate 10 is rotatably provided by a hinge 12 at the edge 11 of the floor surface F of the entrance / exit P of the bus В. The floor surface F of the entrance / exit P is formed with a recess 13 for storing when the slope plate 10 is folded.

  The slope plate 10 is folded so that the slope plate 10 is stored in the recess 13 when not in use, and the back surface of the slope plate 10 is substantially the same height as the floor surface F. When used, the door of the entrance / exit P is used. When a driver or a crew member opens D, the slope plate 10 is reversed from the floor surface F as shown in the figure, and the tip 14 of the slope plate 10 is landed on the road surface R, so that a wheelchair (not shown) can be used. You can get on and off.

  The slope plate 10 is formed by rectangularly forming a frame member 15 formed of an aluminum extruded material or a steel material, and a floor plate 16 formed of a honeycomb structure or a truss structure is provided in the rectangular frame member 15. It is formed. The thickness of the slope plate 10 is, for example, 15 mm and is formed so as to be able to withstand a maximum load of 300 kg. The length from the hinge 12 to the tip portion 14 is relative to the road surface R when the tip lands on the road surface R. The slope plate 10 is formed so that the angle is about 7 degrees or less.

  The frame member 15 on the distal end portion 14 side is formed with a front inclined surface 17 so that the front wheel of the wheelchair can be easily climbed when transferring from the road surface R to the slope plate 10. Further, side inclined surfaces 18 are formed on the frame members 15 at both the left and right ends of the slope plate 10.

  In the present invention, the attachment plate 21 of the hinge 12 that rotatably connects the slope plate 10 to the edge portion 11 is attached to the edge portion 11 via the cushion member 20.

  The hinge 12 includes a shaft 22 and a pair of mounting plates 21a and 21b provided so as to be rotatable with respect to the shaft 22. The shaft cylinder 23a covers the shaft 22 integrally with the pair of mounting plates 21a and 21b. , 23b are alternately formed along the shaft 22, and are attached so that the pair of attachment plates 21a, 21b overlap when rotated as indicated by the arrows in the figure.

  The edge 11 and the slope plate 10 are formed with mounting grooves 24a and 24b for receiving and mounting the mounting plates 21a and 21b of the hinge 12, respectively. A mounting plate 21a on the slope plate 10 side is attached to the mounting groove 24a of the slope plate 10 with screws or the like (not shown). The mounting groove 24a is formed at the same depth as the thickness of the mounting plate 21a, so that the slope plate 10 and the mounting plate 21a are flush with each other.

  An attachment plate 21b on the edge 11 side is attached to the attachment groove 24b of the edge 11 via the cushion member 20 so as to be vertically movable. The cushion member 20 is formed of rubber or a coil spring. The depth of the mounting groove 24b is formed to be the same as the total thickness of the cushion member 20 and the mounting plate 21b, so that the surfaces of the mounting plate 21b and the recess 13 have the same height.

  The edge portion 11 is provided with a support member 25 that supports the center of the attachment plate 21b on the edge side so that the longitudinal direction of the attachment plate swings. In the figure, the support member 25 is shown as an example of being attached to the surface of the recess 13 at the upper part of the attachment plate 21b. However, the support member 25 may be provided on the lower surface of the attachment plate 21b and attached to the side wall of the attachment groove 24b. The support member 25 is not shown in detail, but when it is attached to the upper portion of the attachment plate 21b, the cushion member 20 is pressed against the force that pushes up the attachment plate 21b, or the shaft and the shaft tube are similar to the hinge. The shaft and the shaft cylinder may be fixed to the mounting plate 21b and the edge 11, respectively, and the mounting plate 21b may be configured to swing back and forth in the vehicle direction around the support member 25.

  Next, the operation of this embodiment will be described.

  The slope plate 10 is folded and stored in the recess 13 of the floor surface F when the bus В travels, and the back surface side of the slope plate 10 is substantially flush with the floor surface F.

  After the bus В stops and the door D of the entrance / exit P is opened, the driver lifts and turns the slope plate 10 stored in the recess 13 and turns to reverse the tip 14 on the road surface R. Let

  In this case, as shown in FIG. 2A, if the floor surface F of the bus B and the road surface R are parallel, the tip portion 14 of the slope plate 10 is in line contact with the road surface R. You can get on through the slope plate 10.

  Next, as shown in FIGS. 2B and 2C, the floor surface F and the road surface R of the bus B are not parallel, and the road surface R is inclined in any of the front and rear directions with respect to the floor surface F. If the mounting plate 21b of the hinge 12 swings around the support member 25 by the cushion member 20 shown in FIG. Line contact can be made.

  In this state, the wheelchair user can transfer to the slope board 10, climb the slope board 10, and transfer to the floor surface F. At this time, a slight level difference occurs at the hinge 12, but since the wheelchair is climbing and incline, there is a load on the rear wheel side, so even if the size of the front wheel is small, the load on the front wheel is small and the level difference is easy. You can get over.

  Thus, when boarding / alighting is completed, the landing slope plate 10 is lifted, folded and stored in the recess 13.

  Further, when getting off, even if the floor surface F and the road surface R of the bus B are not parallel and the road surface R is inclined in any of the front and rear directions with respect to the floor surface F, the cushion member 20 causes the hinge 12 to Since the mounting plate 21b can swing back and forth in the traveling direction of the bus, the front end portion 14 of the slope plate 10 can be in line contact with the road surface R, and the vehicle can get off smoothly.

DESCRIPTION OF SYMBOLS 10 Slope board 11 Edge 12 Hinge 20 Cushion member 21a, 21b Mounting plate 24a, 24b Mounting groove B Bus F Floor surface P Entrance / exit

Claims (3)

In the slope board for wheelchair getting on and off, provided on the edge of the floor of the bus entrance and exit via a hinge, a slope board is provided so as to be rotatable from the floor to the road surface.
The hinge includes a pair of mounting plates and a shaft, and the pair of mounting plates includes one mounting plate provided on the slope plate and the other mounting provided on the edge via a cushion member. a plate, the one mounting plate, rotatably connected to the other of the mounting plate through the shaft,
The lower surface of the cushion member is supported by the edge portion, and the other mounting plate is supported on the upper surface of the cushion member so as to be vertically movable by elastic deformation of the cushion member,
The cushion member is deformed while the other mounting plate is held in accordance with the inclination of the road surface with respect to the floor surface . In the center of the other mounting plate, the edge of the cushion member is vertically aligned with the edge of the cushion member in accordance with the inclination of the road surface with respect to the floor surface. The slope board for wheelchair entry / exit of Claim 1 provided with the supporting member supported so that it may rock | fluctuate by extending and shrinking an other end to an up-down direction .   The wheelchair entry / exit slope plate according to claim 1 or 2, wherein the cushion member is made of rubber or a coil spring.

Images