JP2006334197A - Assembly structure of lifter for wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifter assembly structure for a wheelchair which reduces labor of an operator for installation by simplifying assembly work while securing rigidity in the lifter for the wheelchair which is assembled at the spot. <P>SOLUTION: Using holes 44c and 44c formed at vertical frames 44a and 44a, screws 56 and 56 are screw-engaged to female threads 13a and 13a provided at guide members 13 and 13 to assemble a vertically moving unit 4 to a base frame 7. Next, pin materials 46d provided at the frame 46 and holes 25 and 25 formed at the rear part of a table part 3 of a base unit 2 are fitted to engage the frame 46 with the table part 3. In this case, the frame 46 is arranged at the table part 3 along the rear end face of the table part 3. Thereafter, using vacancy parts 26 and 26 formed at the rear part of the table part 3, screws 57 and 57 are screw-engaged to female thread parts 46e and 46e of the frame 46 to assemble the vertically moving unit 4 to the table part 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an assembly structure for a wheelchair elevator that can reduce the labor of an operator during loading and installation by simplifying the assembly work in a wheelchair elevator that is assembled locally.

  In recent years, the population of elderly people has been increasing, and the need for care in homes and home treatments is increasing. Therefore, it is natural for care and medical treatment to install a lift for a wheelchair that is used when going out of a room from the indoor to the outdoor. Such an elevator for a wheelchair is preferably an assembly system having a structure that can be disassembled into a plurality of units from the viewpoint of transportation. And it is designed to be easily assembled at the site where these units are carried. For example, it is mainly composed of a base frame, a support column erected on the base frame, an elevating member that can be moved up and down on the support column, and a table portion attached to the elevating member (for example, (See Patent Documents 1 and 2.)

The elevators for wheelchairs proposed by Patent Documents 1 to 2 do not use much screws or the like for assembling each unit and can be easily assembled. However, it has a structure in which rattling is likely to occur at the connecting portion between the support column and the table portion provided with the lifting mechanism. Therefore, for wheelchair users, the anxiety caused by the backlash may be afraid, and there may be a case where the original effect of a wheelchair elevator that makes it possible to get over the step safely and securely cannot be achieved.
JP 2001-002382 A JP 2000-288029 A

  Therefore, in view of the above circumstances, the present invention is intended to reduce the labor of the worker in the installation by making the assembling work simpler while ensuring firm rigidity in the elevator for a wheelchair that is assembled locally. It is an object to provide an assembly structure for a lift for a wheelchair.

The invention of claim 1 is an assembling / disassembling assembly comprising at least a base unit comprising a table unit that can be raised and lowered on a base frame via a support mechanism, and a lifting unit for raising and lowering the table unit. In a possible wheelchair elevator, the assembly portion of each unit is configured to be fitted, and the fitted state is not released by screwing or the like.
When the base unit and the elevating unit are assembled, the guide member at the rear of the base frame and the opening at the lower end of the vertical frame constituting the box of the elevating unit are fitted to each other. Lock the lifting unit, and then fix the base frame and the lifting unit with screws, and fit the pin material provided on the lifting frame of the lifting unit and the hole provided at the rear of the table part The elevating unit and the table portion are locked, and then the elevating unit and the table portion are fixed with screws.

According to the first aspect of the present invention, the base unit is configured such that the base frame is supported by the table portion that is movable up and down via the support mechanism. According to this, the table part can be supported substantially horizontally without moving up and down during the ascent and descent of the table part. Therefore, the wheelchair user can ride on the table portion with peace of mind. Further, the table portion can be displaced only in the vertical direction. Thereby, when the lifting unit and the base unit are assembled, a load that pulls the lifting unit forward can be prevented from being applied to the lifting unit. Therefore, the assembling of the elevating unit and the base unit can be simplified.
In addition, the assembly portion of each unit is configured to be fitted, and the fitted state is not released by screwing or the like. According to this, when assembling the base unit and the lifting unit, the positioning of the lifting unit with respect to the base unit can be simplified by fitting the assembled portions of the respective units. In addition, since the base unit and the lifting unit can be locked at the assembly portion, it is not necessary to perform screwing work while supporting each unit, and even one worker can assemble the base unit and the lifting unit. Can be easily attached. Therefore, the labor of the operator can be reduced. In addition, since the units are fitted in the assembled portion, even when the screws are fixed with few screws, a firm rigidity can be secured in the assembled portion of the base unit and the lifting unit. According to this, the rattling in the assembly part of a base unit and a raising / lowering unit can be eliminated, and the wheelchair user can use the said elevator for wheelchairs in comfort.
Furthermore, since the elevator for a wheelchair has a structure that can be disassembled and assembled from a plurality of units, it is possible to carry in each unit, and one worker can easily carry in.
Therefore, this elevator for a wheelchair can be used safely by a wheelchair user and can be easily carried in and assembled by one worker.

  According to the invention of claim 2, when assembling the base unit and the lifting unit, the guide member at the rear part of the base frame and the opening at the lower end of the vertical frame that constitutes the box of the lifting unit are fitted to each other, Lock the unit. After that, the base frame and the lifting unit were fixed with screws. Further, the pin member provided on the lifting frame of the lifting unit and the hole provided at the rear portion of the table portion are fitted to engage the lifting unit with the table portion. After that, the lifting unit and the table unit were fixed with screws. Thus, when assembling the elevating unit and the base unit, the guide member and the opening, and the pin member and the hole are fitted, so that the elevating unit can be easily positioned with respect to the base unit. Further, it is not necessary to perform screwing work while supporting the lifting unit and the base unit, and even an operator can easily assemble the lifting unit and the base unit. Therefore, the labor of the operator can be reduced. In addition, since the guide member is in the opening portion and the pin member is fitted in the hole portion, it is possible to secure a firm rigidity in the assembling portion of the elevating unit and the base unit even with a few screws. According to this, rattling in the assembly part of the lifting unit and the base unit can be eliminated, and the wheelchair user can use the wheelchair elevator with a sense of security.

  The wheelchair elevator assembled in the field is configured to be disassembled and assembled from a plurality of units. In addition, the base unit is configured such that the table portion is supported by a base frame installed on the lower surface through a support mechanism so as to be lifted and lowered. When assembling the elevating unit provided with the elevating mechanism for elevating the base unit and the table unit, the guide member at the rear of the base frame and the opening at the lower end of the vertical frame constituting the box of the elevating unit are fitted. Combine the base frame and the lifting unit. After that, the base frame and the lifting unit are fixed with screws. Moreover, the pin member provided in the raising / lowering frame of the raising / lowering unit and the hole part provided in the rear part of the table part are fitted, and the raising / lowering unit and the table part are latched. After that, the elevating unit and the table unit are fixed with screws.

Thus, by making the elevator for a wheelchair into a structure that can be disassembled and assembled of a plurality of units, it is possible to carry in each unit, and even one worker can easily carry in the work.
Further, the base unit is configured to support the table portion so that the base unit can be moved up and down via a support mechanism. According to this, the table part can be supported substantially horizontally without moving up and down during the ascent and descent of the table part. Therefore, the wheelchair user can ride on the table portion with peace of mind. Further, the table portion can be displaced only in the vertical direction. Thereby, when the lifting unit and the base unit are assembled, a load that pulls the lifting unit forward can be prevented from being applied to the lifting unit. Therefore, the assembling of the elevating unit and the base unit can be simplified.
Furthermore, when assembling the elevating unit and the base unit, the guide member and the opening, and the pin member and the hole are fitted, so that the elevating unit can be easily positioned with respect to the base unit. Further, it is not necessary to perform screwing work while supporting the lifting unit and the base unit, and even an operator can easily assemble the lifting unit and the base unit. Therefore, the labor of the operator can be reduced. In addition, since the guide member is in the opening portion and the pin member is fitted in the hole portion, it is possible to secure a firm rigidity in the assembling portion of the elevating unit and the base unit even with a few screws. According to this, rattling in the assembly part of the lifting unit and the base unit can be eliminated, and the wheelchair user can use the wheelchair elevator with a sense of security.
Therefore, this elevator for a wheelchair can be used safely by a wheelchair user and can be easily carried in and assembled by one worker.

  A wheelchair elevator according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a wheelchair elevator. FIG. 2 is a perspective view showing the base frame. FIG. 3 is a perspective view showing the table portion. FIG. 4 is a perspective view showing the base unit. FIG. 5 is a perspective view showing a state in which a safety device is arranged on the base unit. FIG. 6 is an explanatory view showing the lifting unit. FIG. 7 is an explanatory view showing an assembly structure of the base unit and the lifting unit. FIG. 8 is an explanatory view showing an assembly structure of a slope and a table portion. FIG. 9 is an explanatory view showing an assembly structure of a bridge and a table portion. FIG. 10 is an explanatory view showing the assembly structure of the operating mechanism and the lifting unit. FIG. 11 is a rear view showing a state where the slope is stretched over the lower surface. FIG. 12 is a rear view showing the state of the slope and the bridge during elevation. FIG. 13 is a rear view showing a state where the bridge is stretched over the upper surface.

  This wheelchair elevator 1 is mainly composed of a base unit 2 installed on a lower surface LF of a step and a lifting unit 4 that lifts and lowers a table portion 3 on which the wheelchair provided in the base unit 2 can be mounted. . The elevator 1 for a wheelchair is provided with a slope 5 and a bridge 6 for facilitating getting on and off the wheelchair between the lower step surface LF or the upper step surface HF of the step and the table portion 3. Furthermore, the wheelchair elevator 1 is provided with safety devices A and B that prevent foreign matter from entering below the table portion 3 when the table portion 3 is raised.

First, the base unit 2 will be described.
The base unit 2 includes a base frame 7 installed on the lower surface LF, and a support mechanism 8 that supports the table unit 3 so as to be movable up and down with respect to the base frame 7.

  First, as shown in FIG. 2, in the base frame 7, the rear portions of the horizontal beams 7b and 7b are fixed to both side ends of the main beam 7a. In addition, rails 7c and 7c bent in a substantially U shape in front view are fixed to the front portions of the horizontal beams 7b and 7b so that the open sides of the rails 7c and 7c face each other. Further, a connecting beam 7d is fixed between the front ends of the rails 7c and 7c. In addition, female screw members 12, 12, with installation tools 11, 11,... Fixed to the lower portions thereof via arm plates 9, 9, 10, 10 at the front and rear portions of the cross beams 7b, 7b. Are fixed to each other. The arm plates 9, 9 fixed to the rear portions of the cross beams 7b, 7b are provided with holes 9a, 9a. Further, both ends of guide members 13, 13 bent in a substantially U shape in a side view are fixed to the upper surfaces of the rear portions of the cross beams 7b, 7b. Note that female screw portions 13a and 13a are provided at the front portions of the guide members 13 and 13, respectively. Further, bearing plates 14, 14,... With holes 14a, 14a,... Formed on the front surfaces of both sides of the main girder 7a are central axes of the holes 14a, 14a,. Are fixed to match each other. Further, L-shaped plates 15 and 15 bent in a substantially L shape in a side view in which the pin members 15a and 15a are fixed to the front portions are fixed to both side portions of the connecting beam 7d, respectively.

  Next, as shown in FIG. 3, the table portion 3 has a reinforcing member 17 assembled in a lattice shape fixed to a central portion of the lower surface of a substantially rectangular table plate 16 in plan view. Reinforcing plates 18, 18, 19, 19 that are substantially bowl-shaped in plan view are formed on the lower surfaces of both side portions of the table plate 16. Are fixed to match. Furthermore, the rails 20 and 20 bent in a substantially U-shape when viewed from the front face the lower surface of the table plate 16 and both sides of the reinforcing member 17 and the open sides of the rails 20 and 20 face each other. So that it is fixed. Further, both end portions of the table plate 16 are bent downward, and pipes 21 and 21 are fixed to the bent portions, respectively. Further, pin members 22, 22,... Are respectively fixed to the front and rear portions of the bent portion. Further, air holes 23 and 23 are formed in the middle portion of the bent portion. The rear end portion of the table plate 16 is bent upward, and reinforcing plates 24 and 24 are fixed to both sides of the bent portion. The bent table plate 16 and the reinforcing plates 24, 24 are provided with a plurality of hole portions 25, 25, 26, 26 penetrating both. The front end portion of the table plate 16 is bent upward in a bowl shape in a side view, and reinforcing plates 27 are fixed to both side ends of the bent portion.

Subsequently, as shown in FIG. 4, the support mechanism 8 is configured such that the rear portions of the first housings 28, 28 are the hole portions 14 a, 14 a,... Of the bearing plates 14, 14,. Are pivotally connected by shaft members 29 and 29. Further, rollers 28a, 28a pivotally connected to the front portions of the first casings 28, 28 are pivotably connected within the rails 20, 20 of the table portion 3. The rear portions of the second housings 30 and 30 are pivotally connected to the hole portions 18a, 18a, 19a, and 19a of the reinforcing plates 18, 18, 19, and 19 of the table portion 3 by shaft members 31 and 31, respectively. Further, rollers 30a and 30a pivotally connected to the front portions of the second casings 30 and 30 are pivotably connected within the rails 7c and 7c of the base frame 7. Further, intermediate portions of the first casings 28 and 28 and the second casings 30 and 30 are pivotally connected by shaft members 32 and 32. Further, connecting girders 33 and 33 are fixed between the first housings 28 and 28. That is, the support mechanism 8 is an X frame type link mechanism configured such that the first casings 28 and 28 and the second casings 30 and 30 form an approximately X shape in a side view.
The support mechanism 8 configured as described above is operated as follows. For example, when the table portion 3 is raised, the second housings 30 and 30 rear portions are pulled up. Accordingly, the front portions of the second casings 30 and 30 are rotated downward about the shaft members 31 and 31. Along with this, the rollers 30a, 30a of the second casings 30, 30 roll backward along the rails 7c, 7c. In addition, along with this, the first casings 28 and 28 and the second casings 30 and 30 are pivotally connected by the shaft members 32 and 32 so that the intermediate portions of the first casings 28 and 28 are pushed up. Become. As a result, the front portions of the first housings 28 and 28 are rotated upward about the shaft members 29 and 29. Along with this, the rollers 28a, 28a of the first casings 28, 28 roll backward along the rails 20, 20. At this time, the first casings 28, 28 and the second casings 30, 30 are operated equally by connecting the first casings 28, 28 with the connecting girders 33, 33. That is, the support mechanism 8 is operated so as to support the table portion 3 substantially horizontally without being glazed while the table portion 3 is being raised and at each lift position.

  In this way, the base unit 2 supports the table unit 3 by the support mechanism 8, so that the table unit 3 is supported substantially horizontally without moving up and down during the ascent / descent of the table unit 3. Have been to. Further, the base unit 2 is provided with the rails 20 and 20 of the table portion 3 on the table plate 16 so as to be slightly lowered rearward. As a result, when the table unit 3 is raised, the base unit 2 is configured such that the front part of the table part 3 is somewhat higher than the rear part by the support mechanism 8. This is because when the table portion 3 is raised, the support position of the table plate 16 by the rollers 28a, 28a of the first housings 28, 28 moves to the middle portion in the front-rear direction of the table plate 16, thereby boarding the table portion 3. This is a measure to prevent the front part of the table part 3 from drooping downward due to the load of the wheelchair or wheelchair user. Thereby, when the table part 3 is raised, even if the front part of the table part 3 hangs down due to the load of a wheelchair or a wheelchair user who has boarded the table part 3, the table part 3 is kept substantially horizontal. Yes. Therefore, the base unit 2 is configured such that a wheelchair user can ride on the table unit 3 with peace of mind.

Next, safety devices A and B for preventing foreign matter from entering the lower portion of the table unit 3 when the table unit 3 of the base unit 2 is raised will be described with reference to FIG.
First, the safety device A is urged so that the shaft member 35 pivoted in the cover frame 34 is rotated in one rotation direction by a spring (not shown). Further, a sheet 36 for preventing the intrusion of foreign matter is wound around the shaft member 35 while one end side thereof is fixed. Furthermore, a fixture 37 longer than the width of the seat 36 is attached to the other end of the seat 36.
In the safety device A configured as described above, the cover frame 34 is fixed to the bent portion of the front end portion of the table plate 16 of the table portion 3 constituting the base unit 2 by screws 38 and 38. Then, the fixture 37 is locked to the pin members 15 a and 15 a provided on the L-shaped plates 15 and 15 of the base frame 7 constituting the base unit 2. In this way, the safety device A is disposed on the base unit 2.

Next, the safety device B has substantially the same configuration as the safety device A, and the shaft member 40 pivotally connected to a U-shaped frame 39 bent in a substantially U shape in plan view is a spring (not shown). ) Is urged to rotate in one rotation direction. Further, a sheet 41 for preventing the entry of foreign matters is wound around the shaft member 40 while one end side thereof is fixed. Further, a rod 42 longer than the width of the sheet 41 is attached to the other end side of the sheet 41. In addition, in the front part and the rear part of the said U-shaped frame 39, the hole part which can be fitted to the pin materials 22,22, ... provided in the table board 16 side part which comprises the table part 3 of the said base unit 2 39a and 39a are perforated.
The safety device B configured in this way is assembled to the side of the table unit 3 on the side of the base unit 2 on which a slope 5 described later is disposed. First, the pin members 22, 22 provided on the side of the table plate 16 of the table portion 3 are fitted to the hole portions 39 a, 39 a of the U-shaped frame 39, and the U-shaped frame 39 is locked to the table portion 3. Let Then, the middle portion of the U-shaped frame 39 is fastened to the table plate 16 with the screw 43 using the hole portion 23. Further, the rear portion of the bar 42 is inserted and locked in the hole 9 a of the arm plate 9 provided in the base frame 7 of the base unit 2. Then, the front portion of the bar 42 is inserted and locked into a hole portion 37a provided in the fixture 37 of the safety device A. In this way, the safety device B is assembled to the base unit 2.
As described above, when the safety device B is assembled to the base unit 2, the hole portions 39 a and 39 a of the U-shaped frame 39 and the pin materials 22 and 22 are fitted to each other. Easy positioning. Further, it is not necessary to perform the screwing operation of the screw 43 while supporting the U-shaped frame 39, and the U-shaped frame 39 can be easily fixed to the table portion 3. Furthermore, the bar 42 is easily assembled to the base frame 7 by inserting the bar 42 into the hole 9a of the arm plate 9 and the hole 37a of the fixture 37 to be locked. be able to. According to these, the safety device B can be easily assembled to the base unit 2 even by one worker. Therefore, the labor of the operator can be reduced.

  In the safety devices A and B configured as described above, when the table portion 3 of the base unit 2 is raised with respect to the base frame 7, the end portions of the seats 36 and 41 are locked to the base frame 7. Then, the sheets 36 and 41 wound around the shaft members 35 and 40 are fed out. Then, the sheets 36 and 41 are stretched between the base frame 7 and the table portion 3. Further, at this time, the urging force is accumulated in the spring (not shown). When the table unit 3 is lowered, the sheets 36 and 41 are wound around the shaft members 35 and 40 and stored by the biasing force accumulated in the spring (not shown). As described above, the safety devices A and B have seats on the front side of the wheelchair elevator 1 and the side on which the slope 5 to be described later is disposed when the table unit 3 is raised. 36, 41. Therefore, intrusion of foreign matter can be prevented. Moreover, this can prevent accidents caused by the intrusion of foreign matter and failure of the wheelchair elevator 1.

Subsequently, FIG. 6 shows the lifting unit 4 for lifting the table portion 3 of the base unit 2 with respect to the base frame 7 (FIG. 6 is a front view showing a state in which the first front cover is removed). This will be described with reference to FIG.
The elevating unit 4 includes a substantially box-shaped box 44, an elevating mechanism 45 configured inside the box 44, and an elevating frame 46 for elevating the table unit 3 by the elevating mechanism 45. Yes.

  First, in the box 44, horizontal frames 44b, 44b, and 44b are fixed to each other between the upper part, the middle part, and the lower part of the pair of vertical frames 44a and 44a. Further, guide pipes 47, 47 are fixed to the side surfaces of the vertical frames 44a, 44a through arm members 47a, 47a fixed to the upper and lower ends of the guide pipes 47, 47 and arm plates 47b, 47b. . Further, holes 44c and 44c are formed in the lower portions of the front surfaces of the vertical frames 44a and 44a. A rear cover 44d, a first front cover 44e, a second front cover 44f, and a third front cover 44g are disposed so as to form a space between the vertical frames 44a and 44a. Further, a lid plate 48 is disposed between the upper ends of the vertical frames 44a and 44a. In addition, openings 44h and 44h into which guide members 13 and 13 provided at the rear part of the base frame 7 of the base unit 2 can be fitted are provided at the lower ends of the vertical frames 44a and 44a.

  Next, in the lifting mechanism 45, a motor 49 is fixed to a horizontal frame 44b below the box 44. Further, both end portions of the shaft member 51 are pivotally connected to plates 50 and 50 provided between the intermediate portion of the box 44 and the lower horizontal frames 44b and 44b. One end of the shaft member 51 is connected to the motor 49 via a coupling member 52. Further, below the shaft member 51, both end portions of the shaft member 53 provided with a drum portion 53 a at an intermediate portion are pivoted to the plates 50 and 50. Further, a gear 53 b provided on the shaft member 53 and a gear 51 a provided on the shaft member 51 are meshed with each other. Further, two ropes 54, 54 are wound around the drum portion 53a of the shaft member 53, with one ends thereof fixed respectively. Further, the ropes 54, 54 are stretched over a plurality of pulleys 55, 55,. The other ends of the ropes 54 and 54 are respectively attached to boss members 46a and 46a provided on an elevating frame 46 described later.

  Subsequently, in the elevating frame 46, a connecting plate 46c is fixed between L-shaped plates 46b and 46b bent in an approximately L shape in plan view. The boss members 46a and 46a are fixed to the rear portions of the L-shaped plates 46b and 46b. Further, pin members 46d and 46d and female screw portions 46e and 46e are provided on the front surfaces of the L-shaped plates 46b and 46b. The pin members 46d and 46d can be fitted into hole portions 25 and 25 provided at the rear portion of the table portion 3 of the base unit 2.

In the elevating unit 4 configured as described above, when the motor 49 of the elevating mechanism 45 is operated by a control device (not shown), the shaft member 51 is rotated. Along with this, the shaft member 53 is also rotated by meshing the gears 51a and 53b. Then, the ropes 54 and 54 are wound around the drum portion 53a according to the direction in which the shaft member 53 is rotated, and the ropes 54 and 54 are fed out from the drum portion 53a. When the ropes 54 and 54 are wound around the drum portion 53a, the lifting frame 46 that is suspended from the ropes 54 and 54 is raised. Further, when the ropes 54 and 54 are fed out from the drum portion 53a, the elevating frame 46 is lowered.
Further, the elevating unit 4 extends the ropes 54, 54 of the elevating mechanism 45 to pulleys 55, 55,. It is designed to be displaced in the vertical direction.
A control device (not shown) can arbitrarily start and stop the motor 49 and can select the rotation direction of the motor 49.
In this embodiment, the two ropes 54, 54 are used for the lifting mechanism 45. However, although not shown, the lifting mechanism can be configured using a single rope. In that case, first, the intermediate portion of the rope is fixed to the drum portion 53a. Then, the rope is wound around the drum portion 53a. Thereafter, the end portions of the rope are hung around the pulleys 55, 55,. Then, both end portions of the rope are respectively attached to boss members 46 a and 46 a provided on the elevating frame 46. Even if it does in this way, the raising / lowering mechanism which can acquire the effect | action and effect similar to the above-mentioned can be comprised.

The lift unit 4 is assembled to the base unit 2 as shown in FIG. More specifically, first, the elevating unit 4 is moved by fitting the openings 44h, 44h at the lower ends of the vertical frames 44a, 44a of the box 44 with the guide members 13, 13 provided in the base frame 7 of the base unit 2. The base frame 7 is locked. When the openings 44a and 44a and the guide members 13 and 13 are fitted, at least the inner surfaces of the front sides of the vertical frames 44a and 44a and the front surfaces of the guide members 13 and 13 are disposed. At this time, the box 44 is disposed on the base frame 7 over the rear side of the base frame 7. Thereafter, screws 56, 56 are screwed into female screw portions 13a, 13a provided in the guide members 13, 13 using holes 44c, 44c provided in the vertical frames 44a, 44a, and the elevating unit 4 Is assembled to the base frame 7. Next, the pin members 46 d, 46 d provided on the lifting frame 46 and the holes 25, 25 provided on the rear portion of the table portion 3 of the base unit 2 are fitted together, and the lifting frame 46 is locked to the table portion 3. Let At this time, the lifting frame 46 is disposed on the table portion 3 along the rear end surface of the table portion 3. Thereafter, the screws 57 and 57 are screwed onto the female screw portions 46e and 46e of the lifting frame 46 using the hole portions 26 and 26 provided at the rear portion of the table portion 3, and the lifting and lowering unit 4 is assembled to the table portion 3. wear.
The screws 56, 56, 57, 57 are used in the assembled portion of the table unit 2 and the elevating unit 4 so that the fitted state of each constituent member is not released.

By assembling the elevating unit 4 to the base unit 2 in this way, the table portion 3 of the base unit 2 is raised and lowered when the elevating mechanism 45 of the elevating unit 4 is operated.
Further, the base unit 2 supports the table unit 3 so that it can be moved up and down by the support mechanism 8 so that the table unit 3 can be displaced only in the vertical direction. Thus, as described above, even if the lifting unit 4 is assembled so as to support the table unit 3 in a cantilevered state, the lifting unit 4 is not subjected to a load that pulls the lifting unit 4 forward. Not to be. Therefore, the assembling of the elevating unit 4 and the base unit 2 can be as simple as described above.
Further, the elevating unit 4 prevents the force in the direction around the elevating unit 4 from acting on the elevating frame 46 in a plan view when elevating the elevating frame 46. Thereby, the force which swings the table part 3 around the raising / lowering unit 4 is made not to generate | occur | produce. Therefore, the assembling of the elevating unit 4 and the base unit 2 can be as simple as described above.
Further, when the elevating unit 4 is assembled to the base frame 7, the guide members 13 and 13 and the openings 44h and 44h are fitted, whereby the positioning of the elevating unit 4 with respect to the base frame 7 can be simplified. Furthermore, the screws 56 can be easily screwed in without supporting the elevating unit 4 and the base frame 7, so that only the operator can easily assemble the elevating unit 4 and the base frame 7. it can. Therefore, the labor of the operator can be reduced. Further, since the guide members 13 and 13 are fitted into the openings 44h and 44h, even when the guide members 13 and 13 are fixed by a small number of screws 56 and 56, firm rigidity is secured at the assembling portion between the lifting unit 4 and the base frame 7. it can. According to this, the rattling in the assembly part of the raising / lowering unit 4 and the base frame 7 can be eliminated, and the wheelchair elevator 1 can be used with peace of mind by the wheelchair user.
Further, when the lifting unit 4 is assembled to the table portion 3, the pin members 46d, 46d and the hole portions 25, 25 are fitted together, whereby the positioning of the lifting frame 46 with respect to the table portion 3 can be simplified. In addition, the screws 57 can be easily screwed without supporting the lifting frame 46 and the table unit 3, and the lifting unit 4 and the table unit 3 can be easily assembled by one operator. . Therefore, the labor of the operator can be reduced. In addition, since the pin members 46d and 46d are fitted into the hole portions 25 and 25, the rigidity of the assembling portion between the elevating unit 4 and the table portion 3 can be secured even with a few screws 57 and 57. It can be secured. According to this, the rattling in the assembly part of the raising / lowering unit 4 and the table part 3 can be eliminated, and the wheelchair elevator 1 can be used with peace of mind by the wheelchair user.

  In this embodiment, when assembling the lifting unit 4 to the base frame 7, the guide members 13 and 13 and the openings 44 h and 44 h are fitted so that the lifting unit 4 is locked to the base frame 7. I have to. However, although not shown, a guide member or a pin member is provided on the lifting unit 4 side, and an opening or a hole that can be fitted to the guide member or the pin member is provided on the base frame 7 side. good. Alternatively, the elevating unit 4 and the base frame 7 may be provided with a guide member or pin member and an opening or hole, respectively, so that the guide member or pin member and the opening or hole can be fitted to each other. Even if it does in these ways, the effect | action and effect similar to the above-mentioned can be acquired. In addition, the guide member or the pin member and the hole portion or the opening portion as described above can be used also in the assembly portion of the table portion 3 of the base unit 2 and the lifting frame 46 of the lifting unit 4. It can also be used in the assembly part between other units.

Next, the slope 5 and the bridge 6 for facilitating getting on and off the wheelchair between the lower step surface LF or the upper step surface HF and the table portion 3 of the base unit 2 will be described.
First, the slope 5 is not necessary when digging a pit slightly larger than the base unit 2 and installing the wheelchair elevator 1 with the table portion 3 and the lower step surface LF at the same height. is there. However, when such a construction is not performed, the slight difference in level between the table portion 3 and the lower step surface LF is gently inclined by the slope 5 to facilitate getting on and off the wheelchair between the table portion 3 and the lower step surface LF. Is for.
As shown in FIG. 8, the slope 5 has attachment plates 59b and 59c fixed to the front and rear ends of the pipe 59a on one side of the slope plate 58 whose front and rear ends are bent upward to prevent the wheel from coming off. The attached mounting member 59 is fixed. In addition, a shaft member 59d serving as a rotation center of the slope 5 is fixed to the attachment plate 59b in the front part of the attachment member 59. In addition, a hole 59e having a central axis coinciding with the axis of the shaft member 59d is formed in the mounting plate 59c at the rear of the mounting member 59. The mounting plate 59c is provided with a female screw part 59f.
The slope 5 configured as described above allows the shaft member 59d to be inserted into the pipe 21 provided on the side of the table portion 3 on the side of the table portion 3 from the lower step surface LF. Then, the shaft member 60b fixed to the intermediate portion of the cam plate 60 having the roller 60a pivoted at one end portion is inserted into the hole portion 59e of the mounting plate 59c and the pipe 21, and the slope 5 is inserted into the pipe 21. Lock it so that it can rotate. Thereafter, the cam plate 60 is fastened to the mounting plate 59c with screws 61 using the hole portions 60c provided in the cam plate 60. In this way, the slope 5 is assembled to the table unit 3.
Thus, when assembling the slope 5 to the table portion 3, the shaft members 59 d and 60 b are pivotally locked to the pipe 21, so that the slope 5 and the cam plate 60 are locked to the table portion 3. . According to this, the screw 61 can be easily screwed without supporting the slope 5, and the operator can easily perform the work of assembling the slope 5 to the table portion 3. Therefore, the labor of the operator can be reduced.

  The slope 5 is operated as shown in FIGS. Specifically, as shown in FIG. 11, when the table portion 3 is at the lowest position, the roller 60a of the cam plate 60 is positioned below the arm plate 47b at the lower end of the guide pipe 47 of the elevating unit 4. Yes. At this time, the slope 5 is stretched between the lower step surface LF and the table portion 3. When the table unit 3 is raised from the lowest position, the roller 60a of the cam plate 60 is brought into contact with the arm plate 47b. As the table portion 3 is raised, the roller 60a is relatively pushed down by the arm plate 47b. Then, the tip of the slope 5 is gradually rotated upward about the shaft members 59d and 60b. Then, when the rise of the table portion 3 proceeds and the roller 60a rolls on the side surface of the guide pipe 47 as shown in FIGS. 12 and 13, the slope 5 is in a state where the upright state is maintained. It is raised together with the table unit 3. In the state where the slope 5 is erected, the slope 5 is stopped and it is safe even if the wheelchair on the table portion 3 is forgotten to be braked. Note that when the table portion 3 is lowered, the above-described reverse operation is performed. When the table portion 3 approaches the lowest position, the tip of the slope 5 is automatically rotated downward, and the slope 5 is moved to the lower step surface LF and the table portion 3. It will be in a state of being passed in between.

Subsequently, the bridge 6 is used for facilitating getting on and off the wheelchair between the table unit 3 and the upper stage surface HF by passing the bridge 6 between the table unit 3 and the upper stage surface HF. The bridge 6 has substantially the same configuration as the slope 5. Hereinafter, the bridge 6 will be described with reference to FIG.
In the bridge 6, an attachment member 63 having attachment plates 63b and 63c fixed to the front and rear ends of the pipe 63a is fixed to one side portion of the bridge plate 62 whose front and rear ends are bent upward to prevent wheel removal. Yes. In addition, a shaft member 63d serving as a rotation center of the bridge 6 is fixed to the mounting plate 63b at the front portion of the mounting member 63. Further, a hole 63e having a central axis coinciding with the axis of the shaft member 63d is formed in the mounting plate 63c at the rear of the mounting member 63. The mounting plate 63c is provided with a female screw part 63f.
The bridge 6 configured in this manner allows the shaft member 63d to be inserted into the pipe 21 provided on the side portion on the other end side of the table portion 3 where the slope 5 is attached. Then, one end side of the shaft member 64 is inserted into the hole portion 63e of the mounting plate 63c and the pipe 21, and the bridge 6 is pivotally locked to the pipe 21. Thereafter, the other end side of the shaft member 64 is inserted into one hole portion 65a of the cam piece 65 in which the plurality of hole portions 65a, 65a are formed. Then, the cam piece 65 is fastened to the mounting plate 63c with a screw 66 using the other hole portion 65a of the cam piece 65. In this way, the bridge 6 is assembled to the table unit 3.
As described above, when the bridge 6 is assembled to the table portion 3, the shaft members 63 d and 64 are rotatably locked to the pipe 21, so that the bridge 6 and the cam piece 65 are locked to the table portion 3. . According to this, the screwing operation of the screw 66 can be easily performed without supporting the bridge 6, and the assembly operation of the bridge 6 to the table unit 3 can be easily performed by one worker. Therefore, the labor of the operator can be reduced.

Next, an operation mechanism 67 for operating the bridge 6 as the table portion 3 is raised and lowered will be described with reference to FIG.
The actuating mechanism 67 includes a plurality of guide members 68 and 68 in which the cam piece 65 can slide and a guide member 69 in which the cam piece 65 can slide and cause the bridge 6 to rotate. It is composed of
First, the guide members 68, 68 are formed in a substantially U-shaped shape in plan view, and pin members 68a, 68a,. is there. The pin members 68a, 68a,... Of the guide members 68, 68 are air holes 47c, 47c provided on the side portions of the guide pipes 47, 47 constituting the box 44 of the elevating unit 4.・ It is possible to fit in. The guide members 68, 68 are fitted with holes 47c, 47c,... Provided in the guide pipe 47 of the elevating unit 4 on the side where the bridge 6 is provided and the pin materials 68a, 68a,. Locked together. The guide members 68 and 68 are assembled by screwing screws 70 and 70 into female screw portions 47 d and 47 d provided on the guide pipe 47. As described above, when the guide members 68, 68 are assembled to the guide pipe 47, the pin members 68a, 68a,... And the hole portions 47c, 47c,. According to this, the positioning of the guide members 68 and 68 with respect to the guide pipe 47 can be easily performed. In addition, the screws 70 can be easily screwed without supporting the guide members 68 and 68, and the assembly of the guide members 68 and 68 to the guide pipe 47 can be easily performed by one operator. Can do. Therefore, the labor of the operator can be reduced.
The guide member 69 has a shape that is bent in a substantially C shape in plan view, and a fixing tool 69a that is bent in a substantially U shape is locked by screws 69b and 69b at the front portion thereof. Is. The guide member 69 is disposed along the three surfaces of the guide pipe 47 provided with the guide members 68 and 68, and the fixing member 69a is pressed against the front surface of the guide pipe 47 by screws 69b and 69b. Attached. That is, the guide member 69 can be fixed at an arbitrary position of the guide pipe 47.
When the operating mechanism 67 is assembled, as shown in FIGS. 11 and 12, the cam piece 65 is disposed so that it can slide inside the guide members 68, 68, 69.

  The operating mechanism 67 configured in this way operates the bridge 6 as follows. First, as shown in FIG. 11, when the table portion 3 is at the lowest position, the cam piece 65 is in contact with the guide member 68 and the bridge 6 is held upright. When the table portion 3 is raised, the cam piece 65 is slid along the guide member interiors 68, 68, 69, and the bridge 6 is raised together with the table portion 3 in a state in which the bridge 6 is held upright. . When the table portion 3 reaches a desired height, as shown in FIG. 13, the contact between the cam piece 65 and the guide member 69 is released, and the bridge 6 has its tip centered on the shaft members 63d and 64. Is turned downward. And the bridge 6 will be in the state spanned between the upper stage surface HF and the table part 3. FIG. When the table portion 3 is lowered from the state shown in FIG. 13, the cam piece 65 is relatively pushed up by the guide member 69. Then, the tip of the bridge 6 is gradually rotated upward. Then, as the table portion 3 descends and the cam piece 65 slides inside the guide members 68, 68 and 69 as shown in FIG. 12, the bridge 6 is kept in the standing state. It is lowered together with the table unit 3. In the state where the bridge 6 is erected, the bridge 6 is in a vehicle-stopped state, and it is safe even if the wheelchair on the table portion 3 is forgotten to be braked. Further, when the table portion 3 reaches an arbitrary height, the number of the guide members 68 and 68 is adjusted so that the bridge 6 is placed between the upper surface HF and the table portion 3. To do. Alternatively, the guide member 69 is arranged in a state of being somewhat overlapped with the guide member 68. That is, it is performed by adjusting the amount by which the cam piece 65 slides along the guide members 68, 68, 69 while the table portion 3 is lifted from the lowest position.

As described above, in the elevator 1 for a wheelchair, the slope 5 and the bridge 6 are automatically erected in accordance with the elevation of the table portion 3 of the base unit 2 or are suspended between the table portion 3 and the lower step surface LF or the upper step surface HF. Has been. Therefore, the wheelchair elevator 1 can be operated only by a switch operation of a remote controller (not shown), and the wheelchair elevator 1 is easy to handle for wheelchair users.
Here, the slope and the bridge are simply called a slope when used between the lower surface LF and the table unit 3 and a bridge when used between the upper surface HF and the table unit 3 for convenience. Therefore, in this embodiment, the cam piece 65 provided on the bridge 6 and the cam plate 60 provided on the slope 5 are replaced and assembled. Furthermore, by assembling the operating mechanism 67 to the guide pipe 47 on the opposite side of the lifting unit 4, the slope 5 and the bridge 6 are replaced and assembled to the table unit 3.

Finally, the assembly method of the elevator 1 for wheelchairs in a present Example is demonstrated.
First, the base unit 2 is installed at the installation location of the lower step surface LF of the step.
Next, the openings 44h, 44h at the lower ends of the vertical frames 44a, 44a of the lifting unit 4 and the guide members 13, 13 at the rear of the base frame 7 of the base unit 2 are fitted, and the lifting unit 4 is locked to the base frame 7. . Then, by using the holes 44c and 44c provided in the vertical frames 44a and 44a, the screws 56 and 56 are screwed to the female screw parts 13a and 13a provided in the guide members 13 and 13, so that the elevating unit 4 is attached to the base frame. 7 Assemble to the rear.
After that, the pin members 46d, 46d provided on the lifting frame 46 of the lifting unit 4 and the holes 25, 25 provided on the rear portion of the table unit 3 of the base unit 2 are fitted, and the lifting frame 46 is attached to the table unit 3. Lock. Then, the screws 57, 57 are screwed to the female screw portions 46 e, 46 e of the lifting frame 46 using the holes 26, 26 at the rear of the table portion 3, and the lifting unit 4 is assembled to the rear portion of the table portion 3.
Then, the shaft member 59d of the slope 5 is inserted into the pipe 21 provided on the side of the table portion 3 on the side where the table portion 3 enters from the lower step surface LF. Then, the shaft member 60b of the cam plate 60 is inserted into the hole 21e provided in the attachment plate 59c of the slope 5 and the pipe 21, and the slope 5 is pivotally locked to the pipe 21. Thereafter, the cam plate 60 is fastened to the mounting plate 59 c by the screw 61, and the slope 5 is assembled to the table portion 3.
Further, the shaft member 63d of the bridge 6 is inserted into the pipe 21 provided on the side of the table portion 3 on the other end of the slope 5 attached. Then, one end side of the shaft member 64 is inserted into the hole portion 63e provided in the mounting plate 63c of the bridge 6 and the pipe 21 so that the bridge 6 is pivotally locked to the pipe 21. Thereafter, the other end side of the shaft member 64 is inserted into one hole portion 65 a of the cam piece 65, and the cam piece 65 is locked to the shaft member 64. Then, the cam piece 65 is fastened to the mounting plate 63 c by a screw 66 using the other hole portion 65 a of the cam piece 65, and the bridge 6 is assembled to the table portion 3.
And the hole parts 47c provided in the guide pipe 47 of the raising / lowering unit 4 on the side where the bridge members 6 are assembled to the pin members 68a, 68a,... The guide members 68 and 68 are locked to the guide pipe 47 by fitting them. The guide members 68 and 68 are assembled to the guide pipe 47 by screwing the screws 70 and 70 into the female screw portions 47 d and 47 d of the guide pipe 47. Further, the guide member 69 of the operating mechanism 67 is disposed along the three surfaces of the guide pipe 47 to which the guide members 68 and 68 are assembled. Then, the fixing member 69 a disposed at the front part of the guide member 69 is brought into pressure contact with the guide pipe 47 with the screws 69 b and 69 b, and the guide member 69 is assembled to the guide pipe 47.
Further, the hole portions 39a, 39a of the U-shaped frame 39 of the safety device B and the pin members 22, 22 provided on the side of the table portion 3 on the slope 5 mounting side are fitted to each other, so To lock. Then, the middle portion of the U-shaped frame 39 is fastened to the table portion 3 with the screw 43. Thereafter, the rear portion of the bar 42 provided at the end portion of the seat 41 is inserted into the hole portion 9a provided in the arm plate 9 of the base frame 7 and locked. Further, the front portion of the bar 42 is inserted and locked into a hole portion 37a provided in the fixture 37 of the safety device A provided in the base unit 2, and the safety device B is fixed to the base frame 7 and the table portion. Assemble between the three.

Thus, the elevator 1 for wheelchairs concerning this invention is comprised so that each unit can be compact and each unit can be carried alone. Thereby, it becomes possible to carry in each unit, and even one worker can easily carry in.
The wheelchair elevator 1 is configured such that the table unit 3 is supported by a support mechanism 8 so that the base unit 2 can be moved up and down with respect to the base frame 7. Thereby, the table part 3 can be displaced only in the vertical direction. Accordingly, the wheelchair elevator 1 is configured such that a load that pulls the lifting unit 4 forward is not applied to the lifting unit 4. According to this, the assembling of the elevating unit 4 and the base unit 2 can be as simple as described above.
Furthermore, the elevator 1 for a wheelchair is configured so that each unit can be locked at a predetermined assembling position only by fitting the components of each unit when the units are assembled. Yes. According to this, positioning of one unit with respect to the other unit can be simplified. Further, it is not necessary to perform screwing work while supporting each unit, and even one worker can easily assemble the units. Therefore, the labor of the operator can be reduced. In addition, since the constituent members of each unit are fitted into each other, firm rigidity can be secured at the assembly portion between the units even with a few screws. According to this, the rattling in the assembly part of each unit can be eliminated, and the wheelchair elevator 1 can be used with peace of mind by the wheelchair user.
That is, in order to install the wheelchair elevator 1, it is possible to carry in and assemble by one operator, and the efficiency in installation can be increased.

The perspective view which shows the elevator for wheelchairs. The perspective view which shows a base frame. The perspective view which shows a table part. The perspective view which shows a base unit. The perspective view which shows the state which has arrange | positioned the safety device to the base unit. Explanatory drawing which shows a raising / lowering unit. Explanatory drawing which shows the assembly structure of a base unit and a raising / lowering unit. Explanatory drawing which shows the assembly structure of a slope and a table part. Explanatory drawing which shows the assembly | attachment structure of a bridge | bridging and a table part. Explanatory drawing which shows the assembly structure of an action | operation mechanism and a raising / lowering unit. The rear view which shows the state by which the slope was spanned on the lower stage surface. The rear view which shows the state of the slope and bridge | bridging at the time of raising / lowering. The rear view which shows the state by which the bridge was spanned to the upper stage surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wheelchair lift 2 Base unit 3 Table part 4 Lifting unit 7 Base frame 8 Support mechanism 13 Guide member 25 Hole part 44 Box 44a Vertical frame 44h Opening part 45 Lifting mechanism 46 Lifting frame 46d Pin material 56 Screw 57 Screw

Claims (2)

  In a lift for a wheelchair that can be disassembled and assembled, comprising at least a base unit comprising a table part that can be raised and lowered on a base frame via a support mechanism, and a lifting unit for raising and lowering the table part, An assembly structure of a lift for a wheelchair characterized in that the assembly portion of each unit is configured to be fitted, and the fitted state is not released by screwing or the like.   When assembling the base unit and the lifting unit, the base frame rear guide member and the opening of the vertical frame constituting the lifting unit box are fitted to engage the base frame and the lifting unit, After that, the base frame and the lifting unit are fixed with screws, and the pin member provided in the lifting frame of the lifting unit and the hole portion provided in the rear part of the table part are fitted, so that the lifting unit and the table part are fitted. 2. The assembly structure for a wheelchair elevator according to claim 1, wherein the elevator unit and the table unit are fixed by screws.

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