JP6446170B2 - Wheelchair lifting device - Google Patents

Description

  The present invention relates to a lifting device for a wheelchair that translates a wheelchair into a lower floor portion and an upper floor portion of a stepped portion.

  In the lifting device for a wheelchair disclosed in Patent Document 1, a stopper portion that guides getting in and out of the table portion of the wheelchair is rotated up and down by a hinge portion on a table portion that is configured to be movable in parallel in the vertical direction by placing the wheelchair If the elastic member is attached to the table and the stopper, and the elastic member gives the stopper part elasticity in the standing direction, and the stopper part stands up, the upper end of the stopper part is the wheel stopper of the wheelchair. Projecting above the table portion so as to function as Then, when the table part is lowered and the lower end of the stopper part is pushed up against the elasticity of the elastic member from the slope part placed on the lower floor part of the step part, the stopper part passes between the table part and the slope part. The stopper portion guides the movement of the wheelchair to the table portion and the slope portion.

  However, the stopper part is rotatably provided on the table part, and the stopper part is erected by an elastic member, and when the table part is lowered, the stopper part is pushed up from the slope part placed on the lower floor part. Since it is configured to be passed to the table portion and the slope portion, the structure is complicated.

Japanese Patent No. 5286758

  The present invention has been made in view of the above-described background art, and provides a lifting device for a wheelchair in which the structure of the wheel stopper of the wheelchair placed on the table portion and the guidance of getting on and off the wheelchair table portion is simplified. For the purpose.

  The present invention is a lifting device for a wheelchair comprising a table portion configured to be able to move in parallel in the vertical direction on a wheelchair, and a slope portion provided on the table portion, the upper end portion of the slope portion being the table portion Further, the wheel stopper is configured to protrude further upward and prevent the wheelchair from dropping from the table portion to the slope portion side.

  In the present invention, since the slope portion also serves as the stopper portion (wheel stopper portion), the structure is simplified. In the present invention, if the slope portion is fixed to the table portion, the structure is simplified. In the present invention, an extension portion is provided on one side or both sides in a direction orthogonal to the direction connecting the slope portion side of the table portion and the other end portion corresponding to the slope portion side, or the slope portion of the table portion If the extension portion is provided on one side portion in the direction orthogonal to the direction connecting the other end portion corresponding to the slope portion side and the other end portion corresponding to the slope portion side, and the other end portion corresponding to the slope portion side, the extension portion of the table portion The direction in which the wheelchair is provided becomes wider, and the direction of the wheelchair can be easily changed on the table portion. In the present invention, if the extension portion protrudes upward from the table portion, it is possible to prevent the wheelchair from dropping from the table portion to the side. In the present invention, if the extension portion is detachably provided on one side or both sides of the table portion, a mode in which the extension portion is used and a mode in which the extension portion is not used can be selected. In the present invention, a mounting portion that protrudes downward from the table portion and a fitting portion that opens upward are provided on one or both sides of the table portion, and a fitted portion and a mounting portion are provided on the expansion portion. The fitting part of the table part and the fitted part of the extension part are fitted to each other, and the extension part can be attached to and detached from the table part by supporting the attachment part of the extension part on the outer surface of the attachment part of the table part. If it is provided, the installation of the extension part is easy. In the present invention, if the attachment portion of the table portion and the attachment portion of the extension portion are fixed to each other by the fixing member, the extension portion can be firmly attached to the table portion.

The side view which showed the raising / lowering apparatus for wheelchairs concerning the form for inventing. The top view of the table part which concerns on the form for inventing. FIG. 101 is a sectional view taken along line 101-101 in FIG. 2.

  With reference to FIG. 1, the lifting apparatus 1 for wheelchairs concerning the form for inventing is demonstrated. The wheelchair lifting device 1 shown in FIG. 1 includes a table portion 2 and a slope portion 3. The table portion 2 has a plate shape having a size on which a wheelchair is placed, and is configured to be movable in parallel in the vertical direction by the elevating drive unit 4.

  The elevating drive unit 4 includes a base frame unit 5, an elevating frame unit 6, and a drive mechanism unit 7. The base frame portion 5 has a rectangular frame shape in plan view. The elevating frame unit 6 is configured to be X-shaped in a side view that supports the table unit 2. The elevating frame portion 6 has a configuration in which a pair of X-shaped frame portions 8 intersecting two rod members are provided on the left and right sides, and the intersecting portions of the X-shaped frame portions 8 on the left and right are rotatably connected by a shaft member 9. is there.

  One of the upper end portions of the X-shaped frame portion 8 is rotatably connected to the table portion 2 by the shaft member 10. The other upper end portion of the X-shaped frame portion 8 is fitted into the table portion 2 so as to be linearly movable in the direction of one end portion and the other end portion of the table portion 2. One of the lower ends of the X-shaped frame portion 8 is rotatably connected to the base frame portion 5 by the shaft member 11, and the other lower end of the X-shaped frame portion 8 is connected to the base frame portion 5 and one end of the base frame portion 5. It is fitted so that it can move linearly in the direction of the part and the other end.

  The drive mechanism unit 7 includes a drive force generation unit (not shown), a lift drive unit 13, and a connection component (not shown). As the driving force generation unit, a hydraulic pump unit or an electric pump that moves manually can be used. However, if the hydraulic pump unit moves manually, power is saved. Moreover, although the thing using oil_pressure | hydraulic was illustrated as the raising / lowering drive part 13, although it may drive with the electric power which does not use oil_pressure | hydraulic, if it uses oil_pressure | hydraulic, it will save power. In the case of driving with electric power that does not use hydraulic pressure, the driving force generation unit becomes a control unit that controls the elevating drive unit 13, the elevating drive unit 13 becomes an electric actuator unit such as an electric cylinder unit, and the connection parts are wires. Become.

  The bottom part of the container part 14 is arranged so that the height of the X-shaped frame part 8 from the base frame part 5 is increased or decreased by expansion and contraction of the output part 15 which is a piston rod part with respect to the container part 14 of the elevating drive part 13. A tip end portion of the piston rod portion 15 is rotatably connected to the X-shaped frame portion 8. The connecting component connects the output unit of the driving force generator and the input unit of the elevating drive unit 13.

  The slope portion 3 is provided in the table portion 2 and has a fixed shape that guides the wheelchair to get on and off the table portion 2. And when the slope part 3 is fixed to the table part 2, the upper end part of the slope part 3 protrudes upwards rather than the table part 2, and comprises the wheel stopper of a wheelchair. Therefore, the wheel of the wheelchair riding on the table part 2 is received by the wheel stopper, so that the wheelchair can be prevented from dropping from the table part 2 to the slope part 3 side. The wheelchair lifting device 1 shown in FIG. 1 has the convenience that the structure is simple because the slope portion 3 is fixed and installed on the table portion 2.

With reference to FIG. 2, the table part 2 which concerns on the form for inventing is demonstrated. The table unit 2 shown in FIG. 2 is provided with an expansion unit 16. Since the extension part 16 is provided on one side or both sides in a direction orthogonal to the direction connecting the slope part 3 side of the table part 2 and the other end part corresponding thereto, A change of direction is possible. An extended slope portion adjacent to the side portion of the slope portion 3 may be provided in the extended portion 16. Further, the extended portion 16 includes one side portion in a direction orthogonal to the direction connecting the slope portion side of the table portion 2 and the other end portion corresponding to the slope portion side, and the other end portion corresponding to the slope portion side. It is applicable even if it is provided.

  With reference to FIG. 3, the attachment structure of the table part 2 and the expansion part 16 which concerns on the form for inventing is demonstrated. A fitting portion 17 and an attachment portion 18 are provided in a portion where the expansion portion 16 of the table portion 2 is placed. The fitting portion 17 constitutes a hole that penetrates up and down or a recess that opens upward. The attachment portion 18 is configured to protrude from the side portion of the table portion 2 to the back surface portion side of the table portion 2. The attachment portion 18 is provided with an attachment hole portion 19 penetrating in the lateral direction.

  The extension part 16 includes an extension main body part 21, a fitted part 22, an attachment part 23, and a side wall part 24. The extended main body portion 21 is configured to be placed on the table portion 2 and extend to the outside of the table portion 2 and extend in the direction of one end portion and the other end portion of the table portion 2. The fitted portion 22 constitutes a protrusion protruding from the back surface portion of the portion placed on the table portion 2 of the extended main body portion 21.

  The attachment portion 23 is placed on the table portion 2 of the extension main body portion 21 so as to overlap the outside of the attachment portion 18 of the table portion 2 when the fitting portion 17 and the fitted portion 22 are fitted to each other. It is the structure which protruded from the back surface part of the part. The attachment portion 23 is provided with an attachment hole portion 25 penetrating in the lateral direction. The side wall portion 24 is configured to protrude from the outer side portion of the extended main body portion 21 to the back surface portion side. The side wall portion 24 is provided with a working hole portion 26 penetrating in the lateral direction.

  A method for attaching the extension portion 16 to the table portion 2 will be described. First, the extended main body portion 21 is put on the side portion of the table portion 2, the fitting portion 17 and the fitted portion 22 are fitted to each other, and the extended main body portion 21 comes into contact with the side portion of the table portion 2. By being placed, by fitting the fitting portion 17 and the fitted portion 22, alignment of the attachment position of the extension portion 16 to the table portion 2 and a load of external force applied to the extension portion 16 are achieved.

  Next, the bolt 27 is inserted into the mounting holes 19 and 25 from the outside of the side wall portion 24 of the expansion portion 16 via the work hole portion 26, or not from the lower portion of the expansion portion 16 via the work hole portion 26. A tool such as a hexagonal wrench (not shown) inserted into the mounting holes 19 and 25 is operated from the outside of the side wall 24 via the work hole 26 to operate the head of the bolt 27, thereby mounting the bolt 27. When the male threaded portion protruding from 19 toward the back surface side of the table portion 2 is fastened to the nut 28, the extended portion 16 is fixed to the table portion 2, thereby preventing the extended portion 16 from being detached. If the bolt 27 is inserted into the mounting holes 19 and 25 from the lower part of the expansion part 16 without passing through the work hole part 26, the hole diameter of the work hole part 26 is reduced, and the strength reduction of the expansion part 16 is minimized. It is possible to make the working hole 26 inconspicuous in terms of design.

  By fitting the fitting portion 17 and the fitted portion 22, the number of bolts 27 used can be reduced, and the male screw portion of the bolt 27 having a thin outer shape can be used. Since the fitted portion 22 does not protrude toward the surface portion of the extension main body portion 21, the fitted portion 22 does not get in the way. In the structure in which the extension portion 16 is attached to the table portion 2, it is also possible to apply a configuration in which a female screw portion is formed in the attachment hole portion 19 or a nut 28 is fixed around the attachment hole portion 19 of the attachment portion 18.

  If the extension part 16 protrudes upwards from the table part 2, it can prevent the wheelchair from dropping from the table part 2 to the side. In this case, the height at which the extended portion 16 protrudes above the table portion 2 can be adjusted by forming the mounting hole portion 25 as a long hole that is long in the vertical direction or by providing a plurality of mounting hole portions 25 above and below. become.

  If the extension part 16 is provided in the table part 2 so that attachment or detachment is possible, the aspect which uses the extension part 16 and the aspect which does not use can be selected easily.

  The table portion 2 is provided with a mounting portion 18 that protrudes toward the back surface side of the table portion 2, and a fitting portion 17 that opens upward is provided at a position inside the mounting portion 18 of the table portion 2. 16 is provided with a fitted portion 22 and an attaching portion 23, the fitting portion 17 of the table portion 2 and the fitted portion 22 of the expansion portion 16 are fitted together, and the attachment portion 23 of the expansion portion 16 is fitted to the table portion. If the extended portion 16 is detachably provided on the table portion 2 by being overlapped and supported on the outer surface of the mounting portion 18, the extended portion 16 is fitted to the fitted portion 17 and the fitted portion 22. Therefore, installation of the extension part 16 is simplified.

1 is a lifting device for a wheelchair, 2 is a table portion, 3 is a slope portion, 4 is a lifting drive portion, 5 is a base frame portion, 6 is a lifting frame portion, 7 is a drive mechanism portion, 8 is an X-shaped frame portion, 9 to 11 is a shaft member, 12 is a missing number, 13 is an elevating drive part, 14 is a container part, 15 is an output part, 16 is an expansion part, 17 is a fitting part, 18 is a mounting part, 19 is a mounting hole part, and 20 is a missing number. , 21 is an extended body part, 22 is a fitted part, 23 is an attachment part, 24 is a side wall part, 25 is an attachment hole part, 26 is a work hole part, 27 is a bolt, and 28 is a nut.

Claims (1)

A lifting device for a wheelchair comprising a table portion configured to be movable in parallel in the vertical direction on a wheelchair, and a slope portion provided on the table portion, wherein the upper end portion of the slope portion is more than the table portion. A lifting device for a wheelchair characterized in that it forms a slope portion that protrudes upward to prevent the wheelchair from falling off from the table portion toward the slope portion, and the slope portion is fixed to the table portion .

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