Modification device for welfare vehicle
A conversion device with a ramp, winch, and support members allows seamless transformation of a standard vehicle into a welfare vehicle and back, addressing the challenge of converting vehicles with sloped floors.
Patent Information
- Application Number
- JP2024023713
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-09-01
AI Technical Summary
Existing welfare vehicles have a sloped floor section that cannot be easily converted back into a standard vehicle, necessitating replacement if care needs are no longer required, and vice versa.
A conversion device comprising a ramp, winch, belt, and support members that allow a standard vehicle to be transformed into a welfare vehicle and back, using a removable ramp, winch installed in a parts storage recess, and a belt support member to facilitate wheelchair access and support.
Enables easy conversion between a standard vehicle and a welfare vehicle, maintaining stability and functionality for wheelchair access.
Smart Images

Figure 2025127157000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a modification device for a welfare vehicle for modifying a vehicle into a welfare vehicle, the vehicle having a rear door opening in the passenger compartment that can be opened and closed by a back door and a parts storage recess formed in the rear floor of the passenger compartment. [Background technology]
[0002] An invention related to a welfare vehicle is described in Patent Document 1. As shown in FIG. 8, the welfare vehicle 100 described in Patent Document 1 is a minivan equipped with a rear door opening 103 configured to be opened and closed by a back door 102. A sloped floor section 105s is formed on the rear side of the rear seat 104 of the welfare vehicle 100, which is inclined so that the rear is lower. The sloped floor section 105s of the rear floor 105 is configured to store a plurality of slope plates 107 that can be pulled out rearward. Furthermore, a winch 108 is installed under the rear seat 104 of the welfare vehicle 100, which is capable of pulling up a wheelchair K in which an occupant is seated to the rear side of the rear seat 104. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Publication No. 2022-104297 Summary of the Invention [Problem to be solved by the invention]
[0004] In the above-described welfare vehicle 100, a sloped floor section 105s is formed on the rear floor 105 in consideration of lifting the wheelchair K. For this reason, for example, if the welfare vehicle is no longer needed due to family circumstances, even if the winch 108, the sloped plate 107, etc. are removed, the sloped floor section 105s remains, and the welfare vehicle cannot be used in exactly the same way as a general vehicle. Furthermore, if a person currently uses a general vehicle, and care for a family member becomes necessary, the general vehicle will need to be replaced with a welfare vehicle.
[0005] The present invention has been made to solve the above problems, and the problem that the present invention aims to solve is to make it possible to easily convert a normal vehicle into a welfare vehicle, or to easily convert a converted welfare vehicle back into a normal vehicle. [Means for solving the problem]
[0006] The above-mentioned problems are solved by the following inventions. A first invention is a device for converting a vehicle having a rear door opening in a vehicle compartment that can be opened and closed by a back door and a parts storage recess formed in the rear floor of the vehicle compartment into a welfare vehicle, the device comprising: a ramp attached to the lower edge of the rear door opening of the vehicle and having a removable connecting member, the ramp being configured to span between the rear door opening and a road surface to allow a wheelchair to pass through; a belt having a hook at its tip and a retracting mechanism for the belt, and a winch installed in the parts storage recess; a lid-shaped floor panel that is at the same height as the rear floor and closes the upper opening of the parts storage recess and is capable of supporting the wheelchair; and a belt support member that is attached in front of the parts storage recess at a position higher than the rear floor and that supports the belt pulled forward from the winch in a manner that allows the belt to pass freely.
[0007] According to the present invention, a ramp is placed between the rear door opening of a vehicle and the road surface, a belt pulled from a winch is hooked onto a belt support member and pulled rearward, and the end of the belt is hooked onto a wheelchair, allowing the wheelchair to be pulled up to the rear floor using the winch and ramp. That is, a standard vehicle can be converted into a welfare vehicle by attaching a ramp to the lower edge of the rear door opening of the vehicle, installing a winch in a parts storage recess in the rear floor, setting a floor panel, and then attaching a belt support member. Furthermore, by removing the ramp, winch, floor panel, and belt support member, the converted welfare vehicle can be returned to a standard vehicle.
[0008] According to a second aspect of the present invention, the winch is mounted on a winch stand installed in the component storage recess, and the winch stand is provided with a cross beam extending in the vehicle width direction along the lower edge of the rear door opening and a plurality of vertical beams extending in the vehicle front-rear direction, and the floor board is supported from below by the upper surfaces of the cross beams and vertical beams of the winch stand. This improves the strength of the floor board, allowing a wheelchair to be placed on the floor board in a stable manner.
[0009] According to the third invention, the cross beam of the winch cradle and the rear edge of the floor plate supported by the cross beam are formed with a plurality of fitted portions that penetrate vertically from the floor plate to the cross beam, and the connecting member of the slope is a plurality of fitting portions that protrude downward from the upper edge of the slope, and the fitting portions of the slope fit into the fitted portions of the winch cradle and the floor plate, thereby connecting the upper edge of the slope to the lower edge of the rear door opening of the vehicle. In other words, by fitting the fitting portions of the slope into the fitted portions of the winch cradle and the floor plate, the slope can be connected to the rear door opening of the vehicle, making it easy to set up the slope.
[0010] According to the fourth aspect of the present invention, the belt support member includes a hook that is hooked onto the back frame of the seat, and a support body that is connected to the hook and through which the winch belt is freely passed, making it easy to attach the belt support member.
[0011] According to the fifth aspect of the present invention, a recess for storing a spare tire is used as the part-storing recess. [Effects of the Invention]
[0012] According to the present invention, a normal vehicle can be easily converted into a welfare vehicle, or a converted welfare vehicle can be easily converted back into a normal vehicle. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a schematic perspective view of a vehicle equipped with a modified device for a welfare vehicle according to a first embodiment of the present invention, as viewed from the rear. [Figure 2] FIG. 2 is a schematic vertical cross-sectional view of the rear part of the vehicle. [Figure 3] 2 is an exploded perspective view showing the relationship between the rear compartment of the vehicle and modified equipment for a welfare vehicle stored in the rear compartment of the vehicle. FIG. [Figure 4] 2 is a schematic perspective view showing a state in which modified equipment for a welfare vehicle is attached to the rear of the passenger compartment of the vehicle. FIG. [Figure 5] 5 is a vertical cross-sectional view of the rear of the vehicle cabin (a cross-sectional view taken along the arrows VV in FIG. 4). [Figure 6] FIG. 2 is an enlarged perspective view showing the upper part of the slope plate in the modified equipment for a welfare vehicle. [Figure 7] FIG. 2 is a perspective view of a belt support member in the modified device for a welfare vehicle, as viewed from the rear. [Figure 8] FIG. 1 is a rear side view of a conventional welfare vehicle. DETAILED DESCRIPTION OF THE INVENTION
[0014] [Embodiment 1] Hereinafter, a modification device for a welfare vehicle according to a first embodiment of the present invention will be described with reference to Figures 1 to 7. The modification device for a welfare vehicle 30 according to this embodiment is a device for modifying a normal one-box vehicle 10 into a welfare vehicle. Therefore, by removing the modification device for a welfare vehicle 30 from the modified welfare vehicle, it is possible to return the welfare vehicle to a normal one-box vehicle 10. Here, the front, back, left, right, and top and bottom shown in the figures correspond to the front, back, left, right, top and bottom of the one-box vehicle 10.
[0015] <Overview of the rear R of the passenger compartment of the minivan 10> As shown in Fig. 1, a rectangular rear door opening 14 that can be opened and closed by a back door 12 is formed on the rear surface of the rear compartment R of a minivan 10 (hereinafter referred to as vehicle 10). Also, as shown in Figs. 2 and 3, a rear floor 20 of the rear compartment R includes a substantially flat floor panel main body 21 and a recessed portion 23 that is recessed downward relative to the floor panel main body 21.
[0016] Furthermore, as shown in Fig. 3, the rear floor 20 is formed with left and right curved recesses 25 recessed inward in the vehicle width direction at positions corresponding to the wheel housings 11h (see Fig. 1) of the rear wheels 11. The recessed portion 23 of the rear floor 20 is a recess for storing a spare tire (not shown) of the vehicle 10, and is formed at a position sandwiched between the left and right curved recesses 25 and the rear door opening 14. Furthermore, left and right rear row seats 16 are installed on the floor panel main body 21 of the rear floor 20, as shown in Figs. 2, 3, etc.
[0017] <Overview of 30 modified devices for welfare vehicles> The welfare vehicle conversion device 30 is a device for converting a normal vehicle 10 into a welfare vehicle. As shown in Fig. 1, the welfare vehicle conversion device 30 includes a ramp 31 that spans between the rear door opening 14 of the vehicle 10 and the road surface E, allowing a wheelchair K to pass through. As shown in Figs. 2 and 3, the welfare vehicle conversion device 30 also includes left and right winches 34 that pull the wheelchair K up onto the rear floor 20 at the rear portion R of the passenger compartment, and a floor panel 37 that closes the upper opening of the recessed portion 23 in the rear floor 20 in which the winches 34 are stored. The welfare vehicle conversion device 30 also includes left and right belt support members 38 around which the belts 34b of the left and right winches 34 are respectively hung.
[0018] <About Winch 34> As shown in Figures 2 and 3, the winch 34 includes a belt 34b for pulling up the wheelchair K and a winch main body 34m configured to be able to retract or retract the belt 34b. A hook 34f is attached to the end of the belt 34b, which can be hooked onto the frame of the wheelchair K (figure number omitted). The winch main body 34m includes a drum for retracting the belt 34b, a motor for rotating the drum, a gearbox, etc. The winch 34 also includes an ECU 34e (see Figure 3) for controlling the on / off and rotation of the motor of the winch main body 34m based on remote control operation. As shown in Figure 3 and other figures, the winch main body 34m is stored in the recessed portion 23 of the rear floor 20 while attached to a winch stand 35.
[0019] <About the winch stand 35> 3 and 5, the winch cradle 35 is a cradle that horizontally supports the winch main body 34m and also supports from below a floor board 37 (see FIG. 4) that closes the upper opening of the recessed portion 23 in the rear floor 20. As shown in FIG. 3, the winch cradle 35 is equipped with an L-shaped beam 350 that is formed in an L-shape when viewed from above. The L-shaped beam 350 is made up of a rear cross beam 351 that extends in the vehicle width direction along the rear door opening 14 of the vehicle 10, and a left vertical beam 353 that is connected to the left end of the rear cross beam 351 and extends toward the front of the vehicle.
[0020] 5, the height dimension of the L-shaped beam portion 350 is set to a value approximately equal to the depth dimension of the recess forming portion 23 of the rear floor 20, and the lower end portion of the L-shaped beam portion 350 is fixed to the bottom surface of the recess forming portion 23. In addition, the upper surfaces 351u, 353u of the L-shaped beam portion 350 support the back surface 37d of the floor board portion 37 from below. In other words, when the floor board portion 37 is supported by the L-shaped beam portion 350, the upper surface of the floor board portion 37 becomes continuous with the upper surface of the floor panel main body portion 21 of the rear floor 20.
[0021] As shown in FIGS. 3 and 5 , left ends of a pair of winch support beams 355 that horizontally support the winch main body 34m are fixed to the inside of the left vertical beam 353 of the L-shaped beam 350 at the center in the height direction. The pair of winch support beams 355 are maintained at the same height and are arranged to extend in the vehicle width direction parallel to the rear cross beam 351. Also, as shown in FIG. 3 , a pair of connecting beams 357 that extend in the vehicle front direction are fixed to the center and right end in the vehicle width direction of the rear cross beam 351 of the L-shaped beam 350. The connecting beam 357 is configured to connect the winch support beam 355 and the rear cross beam 351 of the L-shaped beam 350 on the upper side of the winch support beam 355, and to support the underside 37d of the floor panel 37 from below.
[0022] <About floorboard section 37> As described above, the floor panel 37 is a panel that closes the upper opening of the recessed portion 23 of the rear floor 20. As shown in FIG. 5, the floor panel 37 is formed in a flat plate shape with a hollow portion by joining an upper panel 37f and a lower panel 37x at their peripheral edges. The lower panel 37x of the floor panel 37 is formed with a plurality of ribs (not shown) that support the upper panel 37f within the hollow portion. This gives the floor panel 37 sufficient strength to support a wheelchair K. As shown in FIG. 4, the floor panel 37 is formed with notches 37z on the left and right sides of the front edge through which the belt 34b of the winch 34 is passed. Furthermore, as shown in FIG. 5, the floor panel 37 is formed with a pair of pin holes 37h at predetermined positions on the rear edge through which a pair of pins 31p (described later) of the slope 31 are passed. Here, a pin hole 351h is formed in the rear cross beam portion 351 of the winch stand 35 (L-shaped beam portion 350) at a position that overlaps with the pin hole 37h of the floor board portion 37.
[0023] <About Slope 31> As shown in FIG. 4 and other figures, the ramp 31 is configured to span between the rear door opening 14 of the vehicle 10 and a road surface E, allowing a wheelchair K to pass through. The ramp 31 includes a ramp main body 310, a floor cover 316 formed at the upper end of the ramp main body 310, and a road surface installation portion 315 formed at the lower end of the ramp main body 310. As shown in FIG. 6, a pair of pins 31p are formed on the lower surface of the floor cover 316 so as to protrude downward. As a result, as shown in FIG. 5, the pair of pins 31p of the floor cover 316 of the ramp 31 can be inserted into pin holes 37h, 351h of the floor board 37 and the winch stand 35, thereby connecting the ramp 31 to the lower edge of the rear door opening 14 of the vehicle 10.
[0024] <Regarding the belt support member 38> As shown in Fig. 7, the belt support member 38 is configured to be connected to the back frame 16f of each of the left and right rear seats 16, and is a member for changing the direction of the belt 34b that is pulled forward and upward from the winch main body 34m so that it can be pulled rearward. That is, as shown in Fig. 2, with the hook 34f at the end of the belt 34b of the winch 34 hooked on the wheelchair K, the winch main body 34m is driven to reel in the belt 34b, thereby pulling the wheelchair K up to the rear of the rear seat 16.
[0025] The belt support member 38 is composed of a hook 38f that is hooked onto the back frame 16f of the rear row seat 16, and a support main body portion 38z that is connected to the hook 38f and through which the belt 34b of the winch 34 is freely passed.
[0026] <Procedure for converting vehicle 10 into a welfare vehicle> When converting the vehicle 10 into a welfare vehicle, the spare tire is removed from the recessed portion 23 of the rear floor 20, and a winch stand 35 is attached to the recessed portion 23 as shown in FIG. 3. That is, with the winch stand 35 positioned within the recessed portion 23, the lower end of the winch stand 35 is bolted to the bottom surface of the recessed portion 23 as shown in FIG. 5. Next, the left and right winch main bodies 34m and the left and right ECUs 34e are set in predetermined positions on the winch stand 35. Next, with the belts 34b pulled out from the left and right winch main bodies 34m, the hooks 38f of the left and right belt support members 38 through which the belts 34b are threaded are hooked onto the back frames 16f of the left and right rear seats 16 as shown in FIG. 7.
[0027] In this state, the upper opening of the recessed portion 23 of the rear floor 20 is closed by the floor board 37. With the upper opening of the recessed portion 23 closed, the floor board 37 is supported from below by the winch stand 35, so that even if the gravity of the wheelchair K and its occupant acts on the floor board 37, the floor board 37 has sufficient strength to support that gravity. In other words, the process of converting the vehicle 10 into a welfare vehicle is complete when the setting of the floor board 37 is complete.
[0028] Here, the ramp 31 is used when an occupant of a wheelchair K actually gets onto the rear floor 20 of the vehicle 10. That is, by inserting the pin 31p of the floor cover portion 316 at the upper end of the ramp 31 into the pin holes 37h, 351h of the floor board portion 37 and the winch stand 35 as shown in Fig. 5, the ramp 31 can be connected to the lower edge of the rear door opening 14 of the vehicle 10. In this way, the ramp 31 is placed between the lower edge of the rear door opening 14 and the road surface E.
[0029] When a wheelchair occupant K is to be placed on the rear floor 20 of the vehicle 10, the belts 34b of the left and right winches 34 are pulled rearward from the positions of the belt support members 38 and are withdrawn from the winch main bodies 34m. Then, the hooks 34f of these belts 34b are hooked onto the frame of the wheelchair K (see FIG. 1) located at the road surface installation portion 315 of the ramp 31. In this state, by operating the remote control, the winch main bodies 34m are driven to reel in the belts 34b, and the wheelchair occupant K is pulled up onto the rear floor 20 behind the rear row of seats 16 using the ramp 31, as shown in FIG. 2. Then, after the wheelchair occupant K has completely boarded, the ramp 31 is removed from the lower edge of the rear door opening 14 of the vehicle 10.
[0030] <Correspondence between terms in this embodiment and terms in the present invention> The recessed portion 23 of the rear floor 20 in this embodiment corresponds to the component storage recess of the rear floor of the present invention. The rear cross beam portion 351 of the winch rack 35 corresponds to the cross beam of the winch rack of the present invention, and the left vertical beam portion 353 and the pair of connecting beam portions 357 of the winch rack 35 correspond to the vertical beams of the winch rack of the present invention. The pin 31p of the floor cover portion 316 of the slope 31 corresponds to the connecting member and fitting portion of the slope 31 of the present invention, and the pin hole 37h of the floor board portion 37 and the pin hole 351h of the winch rack 35 (L-shaped beam portion 350) correspond to the fitted portion of the present invention. The rear row seat 16 corresponds to the seat of the present invention, and the back frame 16f of the rear row seat 16 corresponds to the back skeleton of the seat of the present invention.
[0031] <Advantages of the modified device 30 for a welfare vehicle according to this embodiment> According to the adaptive vehicle conversion device 30 of this embodiment, a ramp 31 is placed between the rear door opening 14 of the vehicle 10 and the road surface E, a belt 34b pulled from a winch 34 is hooked onto a belt support member 38 and pulled rearward, and a hook 34f at the end of the belt 34b is hooked onto a wheelchair K. The wheelchair K can then be pulled up to the rear floor 20 using the winch 34 and ramp 31. That is, a normal vehicle can be converted into an adaptive vehicle by connecting the ramp 31 to the lower edge of the rear door opening 14 of the vehicle 10, installing the winch 34 in the recessed portion 23 (parts storage recess) in the rear floor 20, setting the floor board 37, and attaching the belt support member 38. Furthermore, the converted adaptive vehicle can be returned to a normal vehicle by removing the ramp, winch, floor board, and belt support member.
[0032] Furthermore, since the floor panel 37 is supported from below by the winch mount 35 while the recessed portion 23 of the rear floor 20 is closed, the strength of the floor panel 37 is improved, allowing the occupant of the wheelchair K to be stably supported on the floor panel 37. Furthermore, the ramp 31 can be connected to the lower edge of the rear door opening 14 of the vehicle 10 by inserting the pin 31p (engagement portion) of the ramp 31 into the pin holes 37h, 351h (engagement portion) of the winch mount 35 and the floor panel 37. This makes it easy to set up the ramp 31. Furthermore, the belt support member 38 includes a hook 38f that is hooked onto the back frame 16f (back skeleton) of the rear row seat 16, and a support body portion 38z that is connected to the hook 38f and through which the belt 34b of the winch 34 is freely passed. This makes it easy to install the belt support member 38.
[0033] <Example of change> The present invention is not limited to the above-described embodiment, and modifications are possible within the scope of the present invention. For example, in the present embodiment, the wheelchair K is pulled up onto the rear floor 20 by the belt 34b of the winch 34 and pulled to the belt support member 38 of the back frame 16f of the rear row seat 16 to secure the wheelchair K in the rear compartment R. However, a wheelchair securing belt (not shown) may be attached to the rear cross beam portion 351 of the winch mount 35, and the hook of the chair securing belt may be hooked onto the wheelchair K on the rear floor 20 from the rear, and the belt 34b of the winch 34 may be wound up to secure the wheelchair K from the front and rear. In addition, in the present embodiment, the pin 31p and the pin holes 37h, 351h are shown as an example of a mating portion and a mated portion that connect the ramp 31 to the winch mount 35 of the vehicle 10. However, instead of the pin 31p and the pin holes 37h, 351h, a fastening mechanism such as a bolt or a nut may be used. In addition, in this embodiment, an example has been shown in which the belt support member 38 is attached to the back frame 16f of the rear row seat 16. However, a configuration in which the belt support member 38 is attached by utilizing a protrusion or the like on the rear floor 20 is also possible. [Explanation of symbols]
[0034] 12. Backdoor 14 Rear door opening 16 Rear seat (seat) 16f···Rear frame (rear skeleton) 20 Rear floor 21 Floor panel main body 23: Recessed portion (recessed portion for storing components) 30. Modified equipment for welfare vehicles 31. Slope 31p···Pin (connecting member, fitting part) 34. Winch 34m winch body (winding mechanism) 34f···hook 34b... Belt 35. Winch stand 351h...Pin hole (mated part) 37 Floorboard 37h···Pin hole (mating part) 37z...Notch 38f···hook 38z...Support main body part 38 Belt support member K·····Wheelchair R...Rear part of the vehicle compartment
Claims
1. A modification device for a welfare vehicle for modifying a vehicle into a welfare vehicle, the vehicle having a rear door opening in a passenger compartment configured to be opened and closed by a back door and a parts storage recess formed in a rear floor of the passenger compartment, a ramp attached to a lower edge of a rear door opening of the vehicle, the ramp having a removable connecting member, and the ramp extending between the rear door opening and a road surface to allow wheelchairs to pass through; a winch provided in the component storage recess, the winch including a belt with a hook at its tip and a winding mechanism for the belt; a lid-shaped floor panel portion that is at the same height as the rear floor and closes an upper opening of the component storage recess portion, and on which the wheelchair can be placed; a belt support member that is attached to a position in front of the component storage recess and higher than the rear floor, and that supports the belt pulled forward from the winch in a state that allows the belt to pass freely; Modified equipment for welfare vehicles.
2. The modification device for a welfare vehicle according to claim 1, The winch is configured to be attached to a winch stand installed in the component storage recess, The winch rack is provided with a horizontal beam extending in a vehicle width direction along a lower edge of the rear door opening and a plurality of vertical beams extending in a vehicle front-rear direction, A modified device for a welfare vehicle in which the floor panel portion is supported from below by the upper surfaces of the horizontal beams and vertical beams of the winch frame.
3. The modification device for a welfare vehicle according to claim 2, A plurality of fitted portions are formed on the cross beam of the winch frame and the rear end edge of the floor board portion supported by the cross beam, and the fitted portions extend vertically from the floor board portion to the cross beam, The connecting member of the slope is a plurality of fitting portions that protrude downward from the upper edge of the slope, A modified device for a welfare vehicle in which the fitting portion of the ramp fits into the fitting portions of the winch stand and the floor board portion, thereby connecting the upper edge of the ramp to the lower edge of the rear door opening of the vehicle.
4. The modification device for a welfare vehicle according to claim 1, The belt support member is a modified device for a welfare vehicle that includes a hook that can be hung on the back frame of the seat, and a support main body that is connected to the hook and through which the winch belt can be freely passed.
5. The modification device for a welfare vehicle according to claim 1, A modified device for a welfare vehicle, in which a recess for storing a spare tire is used as the part storage recess.
Citation Information
Patent Citations
Winch control system and vehicle
JP2022104297A