JP4039027B2 - Lift device for vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle lift device.
[0002]
[Prior art]
Generally, there is a wheelchair as a means of moving people with disabilities, but since the range of movement is limited by wheelchairs, there is a desire for a simple vehicle that allows people with disabilities to get on and drive in the wheelchair themselves. It had been.
As this type of simplified vehicle, a vehicle disclosed in Japanese Patent Laid-Open No. 10-59053 is known. In this case, the floor plate constituting the floor surface of the vehicle body is connected to the main frame via a parallel link mechanism that uses an electric actuator as a drive source, and the position of the ground surface where the wheelchair can ride and the driving of the vehicle are possible. It can move up and down between the raised position.
When a disabled person or the like gets into the vehicle body, the floor board is lowered to the position on the ground surface in advance, and after getting on the floor board together with the wheelchair, the vehicle can be driven by moving the floor board to the raised position. .
[0003]
[Problems to be solved by the invention]
According to the above structure, disabled persons can get into the driver's seat of a simple vehicle by themselves in a wheelchair, but it is not easy to use because it does not have a function to adjust the front and rear position in the driver's seat, and sometimes it is a cramped posture I have to drive in.
This invention is completed based on the above situations, Comprising: It aims at providing the lift apparatus for vehicles which is excellent in usability by providing the adjustment function of a driving position.
[0004]
[Means for Solving the Problems]
As means for achieving the above-mentioned object, the invention of claim 1 is directed to the platform 20 on which the wheelchair can be placed through the sliding operation following the raising / lowering operation from the getting-on / off position outside the vehicle on which the wheelchair 1 can ride. A process during which the platform 20 is displaced to the driving position follows a primary slide operation in which the platform 20 is moved to the reference position through a primary slide operation in which the vehicle interior is displaced back and forth in succession to the ascending / descending operation. A lift device for a vehicle comprising an adjustment process for adjusting the platform 20 to the driving position by performing a secondary slide operation that displaces the room back and forth. On the platform Mechanism for fixing A relay member 55 arranged on the platform 20, a movable part 35 installed to be slidable back and forth with respect to the floor panel 11 of the vehicle body, and a relay member of the platform 20 with respect to the movable part 35 of the vehicle body And a first slide mechanism that causes the platform 20 to perform the primary slide operation by sliding the movable portion 35 back and forth with respect to the floor panel 11 of the vehicle body. 30 and a second slide mechanism 60 that causes the platform 20 to execute the secondary slide operation by sliding the platform 20 back and forth with respect to the relay member 55, and the first slide mechanism 30. Is oriented with the axis in the longitudinal direction of the vehicle body relative to the floor panel 11 of the vehicle body. A screw shaft 40, a travel nut 41 screwed into the screw shaft 40 and fixed to the movable portion 35, and a first electric motor 38 for rotating the screw shaft 40, the second The slide mechanism 60 includes a rack gear 62 disposed in the front-rear direction of the platform 20 on the lower surface of the platform 20, a second electric motor 64 provided on the relay member 55, and a motor shaft of the second electric motor 64. A pinion gear 63 that meshes with the rack gear 62, and Mechanism for fixing Is The wheelchair 1 is fixed to the platform 20 by restricting the backward movement of the wheelchair 1 that has moved forward on the platform 20 until it hits a stopper wall 23 provided at the front edge of the platform 20. A lock arm 90 attached to the platform 20 via a hinge 91 and having a holding portion 93 for the frame 4 at the lower rear end of the wheelchair 1 at the tip; The horizontal posture allowing the wheelchair 1 to get on and off. While rotating the lock arm 90 around the hinge 91 By standing The holding portion 93 is Moved forward until it hits the stopper wall Of the wheelchair 1 Of the lower rear end On frame 4 From the back Automatically lock An electric motor 96 for the lock arm; , Has a feature.
[0006]
Claim 2 The invention of claim 1 In the vehicle described above, in the vehicle in which the movable portion 35, the one slide mechanism 30, and a part of the link mechanism 50 are exposed on the floor panel 11 at a position near the center in the width direction of the vehicle, the exposure is performed. And a sheet-like covering cover is disposed above the floor panel 11, and one end side of the covering cover 74 is arranged on the vehicle side or the The platform 20 is attached to a winder 70 provided on either one of the front edges of the platform 20, while the other side is attached to the other side to which the winder 70 is not attached. The covering cover 74 is extended while being pulled out from the winder 70 in conjunction with the moving operation from the vehicle to the boarding / exiting position. The upper portion of the exposed portion is covered, and the platform 20 is configured to wind the covering cover 74 extended by the winder 70 in conjunction with the moving operation from the getting on / off position to the driving position. Have.
[0007]
[Action and effect of the invention]
<Invention of Claim 1>
According to the first aspect of the present invention, when the platform is brought to the driving position, an adjustment process is performed after the transport process, so that an optimum driving position for the driver can be realized.
[0009]
<Claim 2 Invention>
Claim 2 According to the invention, the sheet is stretched in conjunction with the movement operation of the platform in the outdoor direction to cover the drive mechanism for the conveyance process, so that entry of dust and the like can be prevented. In addition, the mechanism is not exposed to the outside and the appearance is excellent.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
The present embodiment shows an example in which the present invention is applied to a single-seater electric vehicle 10 in which a disabled person or the like can ride and drive alone while sitting on a wheelchair 1.
[0011]
First, the wheelchair 1 used when a disabled person gets into the electric vehicle 10 will be briefly described. The wheelchair 1 is provided with a pair of side frames 3 on both the left and right sides of a seat portion 2 on which a disabled person sits, and a plurality of connecting frames 4 are installed between the side frames 3. A pair of left and right footrests 5 are provided on the lower front side of the side frame 3, and a pair of left and right free wheels 6 are provided behind the side frames 3. A pair of left and right rear wheels 7 having a large diameter are provided.
[0012]
Next, the electric vehicle 10 is provided with a floor panel 11 extending in the front-rear direction at the lower portion of the vehicle (see FIG. 7) and a front body 12 that forms the front of the vehicle body at the vehicle body front portion. The rear side of the front body 12 is an operation unit 14 having a handle 13. In addition, the electric vehicle 10 is provided with a side body 15 that forms the side of the vehicle body on both left and right sides of the vehicle body. A rear pillar 16 is erected on the rear side of the side body 15 to support a roof panel 17 that covers the upper part of the vehicle body.
An emergency door (not shown) is provided on one side surface of the side body 15 so as to be openable and closable.
And the body is not provided in the rear part of the electric vehicle 10, but it is in the state opened largely, and this becomes the entrance / exit 18 (refer FIG. 7) for the platform 20 mentioned later to pass through.
[0013]
As will be described in detail later, the platform 20 is formed in a size that allows a disabled person or the like to enter the wheelchair 1 and is connected to the vehicle body side via a vehicle lift device (hereinafter simply referred to as a lift device). Driving position (the position shown in FIG. 6 and the position of the platform 20 selected by a disabled person or the like when driving) and the getting on / off position (the position shown in FIG. 1 and the platform 20 exits outside the vehicle) Thus, the movement operation is performed by a movement mechanism described later.
[0014]
First, the platform 20 is made of metal, and has a rectangular base plate portion 21 that is formed in a size that allows the wheelchair 1 to be placed therein. The portion 22 is formed to protrude. Moreover, the rigidity of the platform 20 is increased by providing the accommodating portion 22. And the right and left both sides which sandwiched the accommodating part 22 serve as a passage of wheels 6 and 7 of wheelchair 1. In addition, left and right side walls 24 are erected on both left and right edges of the substrate portion 21, and an L-shaped stopper wall 23 (see FIG. 19) is erected on the front edge.
[0015]
Next, the floor panel 11 will be described. The vertical width and the horizontal width of the floor panel 11 are formed wider than the vertical width and the horizontal width of the platform 20, and the platform 20 can be disposed on the floor panel 11. Specifically, referring to the drawings, FIG. 7 shows a plan view of the electric vehicle 10, and the alternate long and short dash line in the drawing shows the outer shape of the platform 20 in the driving position. It is housed on the floor panel 11 of the electric vehicle 10. That is, the floor surface of the electric vehicle 10 is configured as follows while avoiding interference with the platform 20.
[0016]
A pair of side members 28 are arranged with a width dimension wider than the lateral width of the floor panel 11, and the front and rear ends thereof are constructed by a pair of cross members 25 and 26. Normally, a pair of inner members 27 are extended in the side member 28 in the front-rear direction to reach the cross member 26 at the rear end, but in the present embodiment, in order to avoid interference with the platform 20, Disconnected.
[0017]
Next, the moving mechanism will be described. In this embodiment, the moving mechanism is configured by a slide mechanism and a link mechanism 50, and the slide mechanism is further configured by a first slide mechanism 30 that performs a primary slide operation and a second slide mechanism 60 that performs a secondary slide operation. Has been.
First, as shown in FIG. 7, in the first slide mechanism, a pair of fixed rails 31 extending in the front-rear direction of the electric vehicle 10 are arranged in parallel at the center in the width direction on the floor panel 11. Both the fixed rails 31 are U-shaped in cross section and open outward. The front sides of the two fixed rails 31 are mounted on the floor panel 11 and are erected by a plate-shaped front plate 32. The rear sides are constructed by support blocks 33 attached on the floor panel 11.
[0018]
On the other hand, the movable part 35 slidable along the fixed rail 31 is constituted by a pair of side plates 36, a front connection plate 42 for constructing the front sides, and a rear connection plate 43 for constructing the rear sides. .
Further, the inner width of both side plates 36 is formed to be substantially equal to the outer width of both fixed rails 31, and a pair of sliding rollers 37 are idled at the front and rear of the lower portion on the inner surface side of both side plates 36. It is freely attached and is slidably fitted to the fixed rail 31 (see FIG. 10).
[0019]
A screw shaft 40 is rotatably supported between the front plate 32 and the support block 33 in parallel with the fixed rails 31. The shaft end of the screw shaft 40 passes through the front plate 32 and is connected to the first electric motor 38. On the other hand, a travel nut 41 fixed in the movable portion 35 is screwed at a position near the opposite shaft end of the screw shaft 40. Accordingly, as the screw shaft 40 rotates, the movable portion 35 is guided and slid by the fixed rail 31.
This sliding operation corresponds to the primary sliding operation in the present invention.
[0020]
Next, the link mechanism 50 for lifting the platform 20 from the boarding / alighting position to the position of the floor panel 11 of the electric vehicle 10 (hereinafter referred to as the boarding height) will be described.
The link mechanism connects the movable portion 35 and the platform 20 side on both the left and right sides by a four-bar link of an upper link 52 and a lower link 51. One end side of the lower link 51 is rotatably attached to the side surface of the movable portion 35, and the other end side is rotatably attached to a side wall 56 of a relay member 55 described later. On the other hand, the upper link 52 is also rotatably attached to the side of the movable portion 35 and the relay member 55 in the same manner as the lower link 51, and the attachment position is set almost directly above the lower link 51. In addition, spacers 54 and 58 are interposed between the upper link 52 and the movable portion 35 and the relay member 55, respectively, and are attached to the movable portion 35 and the relay member 55. By doing so, interference with the lower link 51 is avoided.
[0021]
The relay member 55 has a pair of side walls 56 and a connecting wall 57. The entire relay member 55 is arranged in the accommodating portion 22 of the platform 20. A connecting means (not shown) is provided between the relay member 55 and the platform 20.
This connection means has a connection relationship with the platform 20 from the platform 20 to the slide switching position (corresponding to the reference position of the present invention, where the tip of the movable portion 35 and the front plate 32 abut). It is maintained, and after that, the connection relationship is released.
[0022]
By the way, a pair of support rollers 53 are supported on the lower portions of the rear portions of the left and right fixed rails 31 via a connection bracket (not shown) so as to freely protrude from the fixed rails 31. Installed. The support roller 53 can be slidably contacted with the lower link 51 until the platform 20 is displaced from the boarding / alighting position to the boarding height position. Thereby, it is possible to support an operation of displacing the platform 20 from the boarding / alighting position to the boarding height position with the movement of the movable portion 35 (this operation corresponds to the lifting / lowering operation of the present invention).
[0023]
On the other hand, a pair of switching rollers 59 are supported on the inner side of the side wall 56 of the relay member 55 so as to be freely rotatable. The switching roller 59 enters the fixed rail 31 just before the rear end of the lower link 51 passes through the support roller 53 as the movable portion 35 advances (see FIG. 14). That is, the support of the platform 20 is switched from the support by the support roller 53 and the lower link 51 to the support by the switching roller 59 and the fixed rail 31 so that the forward movement can be performed continuously. Further, in this state, the upper link 52 is in a horizontal posture and is used as a guide for the second slide mechanism 60 described below.
[0024]
Next, the second slide mechanism 60, that is, a mechanism for causing the platform 20 alone to perform a slide operation will be described.
First, on the left and right side surfaces 22A in the accommodating portion 22 of the platform 20, a pair of sliding rollers 61 mounted so as to be freely rotatable are arranged vertically (see FIG. 12). The dimension between them is set equal to the width dimension of the upper link 52, and when the entire platform 20 is raised, the upper link 52 is sandwiched between the sliding rollers 61 to guide the sliding operation.
[0025]
A second electric motor 64 is attached in the relay member 55 described above, and a pinion gear 63 is attached to the shaft end thereof. On the other hand, a rack gear 62 is disposed on the ceiling surface of the accommodating portion 22 of the platform 20 along the front-rear direction of the electric vehicle 10 and meshes with the pinion gear 63. Accordingly, the pinion gear 63 rotates with the rotation of the second electric motor 64, so that the rack gear 62 moves forward. As a result, the platform 20 moves forward while maintaining the boarding height (this operation is the secondary slide of the present invention). 16 and 17 corresponding to the operation).
It should be noted that the operation from the driving position to the boarding / alighting position by the lift device described above is operated only when the side brake of the electric vehicle 10 is pulled to ensure safety.
[0026]
Further, in the present embodiment, a covering cover 74 and its winder 70 are provided to cover a mechanism portion exposed from the floor panel 11 among the moving mechanisms configured as described above. A panel 29 (see FIG. 19) is mounted on both inner members 27 described above, and a winder 70 is disposed along the width direction of the electric vehicle 10.
[0027]
The winder 70 has an elongated casing 72 as shown in FIG. 18, and a rotating shaft 71 is provided therein. On the other hand, a covering cover 74 having a sheet shape capable of covering the above-described mechanism portion is inserted into a drawing port 73 provided in the casing 72 and pulled out to the outside while one end thereof is fixed to the rotating shaft 71. The other end pulled out is attached to the tip of the stopper wall 23 of the platform 20. The rotating shaft 71 is provided with an urging means (not shown) to urge the rotating shaft 71 in the winding direction. Accordingly, the covering cover 74 is pulled out from the winder 70 in conjunction with the retracting operation when the platform 20 is retracted from the operating position toward the boarding / exiting position, and is wound up when the platform 20 is advanced from the boarding / unloading position toward the driving position. It is automatically wound around a rotating shaft 71 in 70.
[0028]
Further, the lift device according to the present embodiment is provided with the following auxiliary device. As shown in FIG. 1, a flapper 82 is rotatably attached to the rear end of the platform 20 via a hinge 81.
When the platform 20 is in the boarding / alighting position, the flapper 82 is in a lying posture (see FIG. 1) that bridges the ground surface and the platform 20, so that the boarding operation is performed smoothly. Further, after the boarding is completed, the flapper 82 is rotated and displaced to the standing posture (see FIG. 3). In this manner, the wheelchair 1 is prevented from being removed from the platform 20 by being displaced to a standing posture after completion of the boarding.
[0029]
As shown in FIGS. 17 and 20, a flapper electric motor 83 and a gear box 84 are attached to the rear end position on the ceiling surface in the accommodating portion 22 of the platform 20. A screw rod 86 is passed through the gear box 84, and the screw rod 86 slides back and forth as the flapper electric motor 83 rotates. A connecting bracket 87 is provided at the shaft end of the screw rod 86, and this is connected to a receiving side bracket 88 provided on the side surface of the flapper 82 via a hinge 89. Thus, the back-and-forth motion of the screw rod 86 is changed to the rotational motion of the flapper 82.
[0030]
Next, when the boarding on the platform 20 is completed, the mechanisms for fixing the wheelchair 1 to the platform 20 are arranged at two places before and after the wheelchair 1. First, from the rear side, as shown in FIGS. 17 and 21, a mounting bracket (not shown) is arranged in front of the flapper electric motor 83 on the ceiling surface of the accommodating portion 22, and there is a hinge 91. A lock arm 90 is pivotably attached via the. The lock arm 90 is formed by providing a U-shaped holding portion 93 at the tip of the shaft portion 92. When the lock arm 90 stands upright, the holding portion 93 can be locked to the connecting frame 4 arranged at the rear end of the lower part of the connecting frame 4 constituting the wheelchair 1 (see FIG. 2).
[0031]
On the other hand, an escape hole 95 through which the lock arm 90 can pass is provided on the ceiling surface of the housing portion 22. Before the wheelchair 1 gets into the platform 20, the lock arm 90 is in a horizontal posture in the accommodating portion 22 and allows the wheelchair 1 to get in. The lock arm 90 stands upright through the escape hole 95 when the ride-in operation is completed.
[0032]
In addition, the drive unit that causes the lock arm 90 to perform the rotation operation is provided with a lock arm electric motor 96 on the ceiling surface of the housing unit 22 via a connection bracket 96A. A screw rod 98 is attached to the lock arm electric motor 96 via a gear box 97 in the same manner as the flapper electric motor 83 and moves forward and backward as the lock arm electric motor 96 is driven. ing. Further, a connecting member 99 is attached to the tip end side of the screw rod 98, and this is fixed to the hinge 91 of the lock arm 90. As a result, the back-and-forth motion of the screw rod 98 is converted into the rotational motion of the lock arm 90.
[0033]
Next, the front-side fixing structure will be described. As shown in FIG. 17, the belt body 100 is mounted on the upper surface of the stopper wall 23 of the platform 20 along the left-right direction of the electric vehicle 10. A hook 101 is provided at each of the left and right ends of the belt body 100, and a lock fitting 102 is provided at the center. The belt body 100 is drawn out from the central portion of the lock fitting 102, and a tightening ring 103 is attached to the front end thereof. Thereby, after hooking both hooks 101 to the front-end | tip of the side frame 3 of the wheelchair 1, if the fastening ring 103 is pulled, both hooks 101 can be drawn.
[0034]
The drive circuits (not shown) of the electric motors 38, 64, 83, 96 described above are connected to an ECU (Electric Control Unit), so that each electric motor 38, 64, 83, and 96 can be used to operate each mechanism. Each operation is performed by continuously pressing the switch of the remote controller during the operation, and the operation is stopped when the hand is released from the switch.
[0035]
Next, the effect of this embodiment comprised as mentioned above is demonstrated concretely.
A procedure for a disabled person seated in the wheelchair 1 to move to the driver's seat of the electric vehicle 10 will be described. First, the platform 20 is set in advance at the boarding / exiting position. In the boarding / alighting position, the flapper 82 of the platform 20 forms a slope that bridges between the platform 20 and the ground surface, and gets on the upper surface of the platform 20 as it is with the wheelchair 1 on the ground. Following the entry operation, the wheelchair 1 is advanced until it hits the stopper wall 23 of the platform 20 (see FIG. 2).
Subsequently, when the hook 101 is hooked on the tip of the side frame 3 of the wheelchair 1 and the fastening ring 103 is pulled to pull the hook 101, the wheelchair 1 is fixed and the backward movement operation is restricted.
[0036]
Thus, after the wheelchair 1 is fixed, the switch of the remote controller is turned on. Then, a current is passed through the flapper electric motor 83. As a result, the flapper electric motor 83 is driven and the screw rod 86 moves forward, so that the flapper 82 is rotated and displaced to the standing posture.
Subsequently, when the lock arm electric motor 96 is driven, similarly to the flapper 82, the lock arm 90 stands up via the screw rod 98, and the holding portion 93 of the lock arm 90 is connected to the connecting frame 4 at the lower rear end of the wheelchair 1. Lock to. Thereby, the backward movement of the wheelchair 1 is regulated twice (see FIG. 3).
[0037]
Next, following the standing operation of the lock arm 90, the first electric motor 38 is driven, and the screw shaft 40 rotates accordingly. Then, when the travel nut 41 screwed with the screw shaft 40 moves forward, the movable portion 35 moves forward (primary sliding operation). As the movable portion 35 moves forward, the relay member 55 is pulled through both the upper and lower links 51 and 52. At this time, since the relay member 55 and the platform 20 are connected by a connecting means (not shown), the platform 20 is pulled together with the relay member 55 as the movable portion 35 moves forward. While the movable portion 35 is moving forward, the lower link 51 slides on the support roller 53 so that the relay member 55 and the platform 20 are gradually lifted while maintaining a substantially horizontal posture.
[0038]
Then, when the platform 20 reaches substantially the same height as the floor panel 11 of the electric vehicle 10, that is, the boarding height, immediately before the rear end of the lower link 51 passes through the support roller 53 (see FIG. 14), The switching roller 59 enters the fixed rail 31 and the support is switched. That is, the support of the platform 20 is switched from the support by the support roller 53 and the lower link 51 to the support by the switching roller 59 and the fixed rail 31.
[0039]
Further, when the movable portion 35 moves forward and reaches the reference position, it comes into contact with the front plate 32. Then, the first electric motor 38 stops and the rotation of the screw shaft 40 stops. At this time, the platform 20 reaches the slide switching position in FIG. 5, but is still a position away from the handle 13 at this position. The process from the start of the primary slide operation to the slide switching position corresponds to the transport process of the present invention.
[0040]
Further, immediately before the first electric motor 38 stops, the connecting means between the relay member 55 and the platform 20 is released by a signal from the ECU, and the second electric motor 64 is switched.
Then, since the pinion gear 63 rotates with the rotation of the second electric motor 64, the platform 20 moves forward alone (secondary sliding operation) by meshing with the rack 62. If the hand is released from the switch of the remote controller when the desired position is reached, the second electric motor 64 is stopped and operation at the stop position becomes possible. That is, this is the driving position (see FIG. 6). The process from the slide switching position to the driving position corresponds to the adjustment process of the present invention.
[0041]
In addition, when it is desired to adjust the operation position from this state, the remote controller switch may be turned on again.
In addition, since the operation | movement from a driving position to a boarding / alighting position traces reversely the operation | movement from a boarding / alighting position to the driving position mentioned above, description is abbreviate | omitted.
[0042]
As described above, in the present embodiment, the platform 20 on which the wheelchair 1 can be placed is displaced by the lift device from the getting-on / off position outside the vehicle where the wheelchair 1 can get into the driving position in the vehicle interior through the sliding operation following the lifting / lowering operation. In addition, when the platform 20 is brought to the driving position, an adjustment process is performed after the transport process, so that an optimum driving position for the driver can be realized.
[0043]
Further, since the platform 20 is separated from the relay member 55 at the start of the secondary sliding operation by the second electric motor 64, the platform 20 can be moved by itself, so that the adjustment process can be performed in a light weight state. Therefore, it is possible to reduce the size of the drive mechanism for the secondary slide operation.
In this case, if the transport process by the first electric motor 38 is performed at a high speed and the adjustment process by the second electric motor 64 is performed at a slow speed, the minimum necessary time for adjustment is provided with a margin. However, the overall operation time required for getting on and off can be shortened.
[0044]
Further, in conjunction with the movement of the platform 20 in the outdoor direction, the covering cover 74 is pulled out from the winder 70 to cover the drive mechanism for the transport stroke, that is, the first slide mechanism 30 and the link mechanism 50. Etc. can be prevented. Furthermore, both mechanisms 30 and 50 are not exposed to the outside, and the appearance is excellent.
[0045]
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
[0046]
(1) Although the mechanism for sliding the platform 20 is configured by the first slide mechanism and the second slide mechanism in the present embodiment, it may be configured by a single slide mechanism.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view of an electric vehicle according to the present invention.
FIG. 2 is a partially cutaway side view of an electric vehicle showing a state in which the platform is in a boarding / alighting position and the wheelchair is fully loaded.
FIG. 3 is a partially cutaway side view of an electric vehicle showing a state where the platform is in the getting-on / off position and the wheelchair is fixed.
FIG. 4 is a partially cutaway side view of an electric vehicle showing a state where the platform has almost reached the height of the floor panel of the electric vehicle.
FIG. 5 is a partially cutaway side view of the electric vehicle showing a state in which the operation by the first slide mechanism is completed.
FIG. 6 is a partially cutaway side view of an electric vehicle showing a state in which the platform is in a driving position.
FIG. 7 is a partially cutaway plan view of an electric vehicle.
FIG. 8 is a plan view of the platform with the wheelchair mounted.
9 is a cross-sectional view taken along line AA in FIG.
FIG. 10 is an enlarged view (showing the periphery of the accommodating portion).
11 is a sectional view taken along line BB in FIG.
FIG. 12 is an enlarged view (showing the periphery of the accommodating portion).
FIG. 13 is an enlarged view of the link mechanism when the platform is in the getting on / off position.
FIG. 14 is an enlarged view of the link mechanism when the platform is almost raised to the height of the floor panel of the electric vehicle.
FIG. 15 is an enlarged view of the link mechanism when the platform is moved forward by the first slide mechanism.
FIG. 16 is an enlarged view of the link mechanism when the platform is in the operating position.
FIG. 17 is a partially cutaway plan view of the platform (showing the second slide mechanism and the like).
FIG. 18 is a partially cutaway plan view of the platform when the covering cover is pulled out.
FIG. 19 is a sectional view showing a winder mounting structure.
FIG. 20 is a cross-sectional view showing a drive structure of a flapper
FIG. 21 is a cross-sectional view showing a drive structure of a lock arm
[Explanation of symbols]
1 ... Wheelchair
10 ... Electric vehicle
20 ... Platform
21 ... Board part
30 ... 1st slide mechanism
50 ... Link mechanism
55. Relay member
60 ... Second slide mechanism
70 ... Winder
71 ... Rotating shaft
74 ... covering cover

Claims (2)

The process during which the platform on which the wheelchair can be placed is displaced from the getting-on / off position outside the vehicle where the wheelchair can be placed to the driving position in the passenger compartment through the sliding operation following the raising / lowering operation continues to the front and rear in the passenger compartment. The platform is operated by performing a transport process for guiding the platform to a reference position through a primary slide operation that is displaced to a reference position, and a secondary slide operation that is displaced forward and backward in the vehicle interior following the primary slide operation. A vehicle lift device comprising an adjustment process for adjusting to a position,
A mechanism provided on the platform for securing the wheelchair to the platform;
A relay member disposed on the platform;
A movable part installed slidable back and forth with respect to the floor panel of the vehicle body;
A link mechanism for connecting the relay member of the platform to the movable part of the vehicle body so as to be movable up and down;
A first slide mechanism that causes the platform to perform the primary slide operation by sliding the movable part back and forth with respect to a floor panel of the vehicle body;
A second slide mechanism that causes the platform to perform the secondary slide operation by sliding the platform back and forth with respect to the relay member, and
The first slide mechanism includes a screw shaft having a shaft disposed in a front-rear direction of the vehicle body with respect to a floor panel of the vehicle body, a travel nut screwed to the screw shaft and fixed to the movable portion, and the screw A first electric motor for rotating the shaft,
The second slide mechanism is provided on a rack gear disposed in the front-rear direction of the platform on the lower surface of the platform, a second electric motor provided on the relay member, and a motor shaft of the second electric motor, A pinion gear meshing with the rack gear,
The mechanism for fixing is to fix the wheelchair to the platform by regulating the backward movement of the wheelchair that has moved forward on the platform until it hits a stopper wall provided at the front edge of the platform,
A lock arm attached to the platform via a hinge and having a holding portion for a frame of a lower rear end of the wheelchair at a tip;
The lock arm in a horizontal posture that allows the wheelchair to get on and off is raised while rotating around the hinge, so that the holding portion is moved forward until it hits the stopper wall of the lower rear end of the wheelchair. A vehicle lift apparatus comprising: a lock arm electric motor that is automatically locked to the frame from the rear . In the vehicle in which the movable part, the one slide mechanism, and a part of the link mechanism are exposed on the floor panel at a position near the center in the width direction of the vehicle,
The size is such that it is possible to cover the upper part of the exposed part, and a sheet-like covering cover is disposed at an upper position of the floor panel,
One end side of the covering cover is attached to a winder provided on either the vehicle side or the front edge of the platform, and the other end side is attached to the other side where the winder is not attached. By
In conjunction with the movement of the platform from the driving position toward the boarding / alighting position, the covering cover extends while being pulled out from the winder to cover the exposed portion, and the platform is moved from the boarding / alighting position. The vehicle lift device according to claim 1 , wherein the vehicle lift device is configured to wind up the covering cover extended by the winder in conjunction with a moving operation toward the driving position.

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