JP4924887B2 - Elevating device for vehicle - Google Patents

Description

  The present invention includes a mounting body on which a wheelchair can be freely mounted, a lifting frame provided with a connecting frame extending upward from a lateral side portion on the front side of the mounting body, and a lowering of the lifting frame on or near the ground. Elevating operation means for elevating and lowering the connecting frame with respect to the vehicle body so as to elevate and lower in a parallel posture or a substantially parallel posture to a position and a raised position having the same height as the vehicle floor. The present invention relates to a vehicle lifting apparatus.

  Such a vehicle lifting device lifts and lowers the lifting frame between the lowered position on or near the ground and the raised position at the same height or substantially the same height as the floor of the vehicle, and places it on the mounting body. It is used when getting on and off a wheelchair.

In such a vehicle lifting device, when the wheelchair placed on the mounting body moves backward due to vibration or the like when moving the lifting frame up and down, the wheelchair is prevented from falling from the mounting body. Therefore, it is necessary to provide a receiving means for receiving and regulating the backward movement of the wheelchair.
Conventionally, a plate-like receiving body that comes in contact with the wheelchair wheel mounted on the mounting body so as to receive and regulate the backward movement of the wheelchair is placed in a standing posture that protrudes upward at the rear end of the mounting body. It is possible to change the posture in such a manner that it falls to the rear side and falls down to release the catch on the wheel. In other words, when the lifting frame is moved up and down while the wheelchair is placed on the mounting body, the receiving body is changed to a standing posture to prevent the wheelchair from moving backward, and the wheelchair is loaded onto and lowered from the mounting body. In some cases, the receiving body is changed to a fall posture to prevent the wheelchair from retreating (see, for example, Patent Document 1).
Incidentally, in this patent document 1, an electric motor for raising and lowering the receiving body is provided, and when raising the mounting body, a command for switching the receiving body to a standing posture is manually instructed, and an elevating frame is installed. When it is lowered to the lowered position, an instruction to switch the receiving body to the overturned posture is manually issued, so that the receiving body is switched between the standing posture and the overturned posture by the electric motor.

JP 2005-289104 A

However, in the above-described vehicle lifting apparatus, the receiving body is provided on the mounting body so that the posture can be freely changed between the standing posture and the lying posture, and the backward movement of the wheelchair is restricted. The wheelchair must be provided for the purpose of simplifying the posture switching operation, particularly when the electric motor is provided to simplify the posture switching operation. There is a risk that the structure for receiving and restricting may be complicated and expensive, and if the wheelchair that moves backward on the mounting body is received by the receiving body, the wheelchair that moves backward is received by the impact when it is received by the receiving body. There was a risk of discomfort for wheelchair passengers.
When it is explained about giving discomfort to the wheelchair occupant, it is desirable that the wheelchair wheel and the receiving body in the standing posture come into contact with each other when the wheelchair is placed on the mounting body. However, it is difficult to place the wheelchair on the mounting body in a position where the wheelchair wheel and the receiving body in the standing posture are in contact with each other, so the wheel of the wheelchair placed on the mounting body and the standing posture There may be a gap between the wheelchair and the wheelchair. There was a risk of shock when receiving.

  The present invention has been made in view of the above circumstances, and the object thereof is simple, can suppress discomfort to a passenger who rides on a wheelchair, and is easy to handle in a wheelchair. It is in the point which provides the raising / lowering device for vehicles which can receive and control retreating of the vehicle.

To this end, a vehicle lifting device according to the present invention, a pair connection extending upwardly from the respective front side both lateral sides of the the mounting freely mounting body and mounting body wheelchairs A lifting frame provided with a frame, and the lifting frame should be lifted and lowered in a parallel posture or a substantially parallel posture to a lowered position on or near the ground and a raised position having the same height as or substantially the same height as the vehicle floor. And an elevating operation means for elevating the connection frame with respect to the vehicle body, the first characteristic configuration is
The back-prevention belt that wraps around the backrest part of the wheelchair placed on the mounting body so as to receive and regulate the retreat is in front of the planned position of the backrest part of the wheelchair and more than the planned space of the wheelchair. In a state where the belt is wound out from a belt winder provided at the lower end of one of the connecting frames in a state of being positioned laterally outside, and in a state of being positioned behind and above the belt winder, the other It is in the point which is provided in the state which attaches or detaches the belt front- end | tip part to the connection part provided in the said connection frame.

That is, when the lifting frame is moved up and down while the wheelchair is placed on the mounting body, the lifting frame is positioned in front of the position where the backrest portion of the wheelchair is located and laterally outside the wheelchair existing space. The anti-retraction belt is unwound from the belt winder provided on the wheel, and the unwinding anti-retraction belt is wound around the backrest of the wheelchair, and then the belt tip is mounted on the connecting portion provided on the connecting frame. Prevent retraction of wheelchairs placed on the body.
In addition, when the wheelchair is loaded onto and lowered from the mounting body, the prevention of the wheelchair from retreating is released by detaching the belt retraction preventing belt from the backrest of the wheelchair by detaching the belt tip from the connecting portion. Become.

Then, the anti-retraction belt that has been unwound from the belt winder is wound and removed from the backrest of the wheelchair, and the belt tip of the anti-retraction belt is connected from the side of the mounting body. Since it is performed for the connecting portion provided on the connecting frame extending upward, the height for handling the retreat prevention belt is such that a caregiver who cares for a wheelchair passenger can easily operate the wheelchair. The caregiver can easily switch to a state in which retreat is prevented or a state in which reversal prevention is canceled.
In addition, it is configured to prevent the wheelchair from retreating by wrapping the backrest prevention belt around the backrest part of the wheelchair. Therefore, the backward movement can be regulated without giving an impact to the wheelchair.
Furthermore, in order to equip the belt for preventing retraction, a belt winder is provided on the elevating frame, and it is only necessary to provide a connecting portion at the front end of the belt on the connecting frame. It is easy to plan.

  Therefore, the present invention has led to provide a vehicle lifting device that is simple and can suppress discomfort for passengers riding in a wheelchair and that can receive and regulate the backward movement of the wheelchair with an easy-to-use configuration. .

  A second characteristic configuration of the vehicle lifting apparatus according to the present invention is the first characteristic configuration based on connection detection means for detecting attachment / detachment of the reverse prevention belt to the connection portion, and detection information of the connection detection means. And determining whether or not the connecting portion is in a mounted state where a back-prevention belt is mounted, and if it is determined that the mounted state is detected, the lifting frame is allowed to move up and down, and the mounted state If it is determined that it is not, an elevating control means for controlling the operation of the elevating operation means is provided to prohibit the elevating movement of the elevating frame.

In other words, in a state where the wheelchair is placed on the mounting body, the retraction prevention belt is wrapped around the backrest portion of the wheelchair and the belt tip of the retraction prevention belt is attached to the connecting portion to prevent the wheelchair from retreating. In this state, the lifting control means is determined to be in the mounted state, and the lifting frame is allowed to move up and down, and the tip of the reverse prevention belt is detached from the connecting portion, thereby preventing the wheelchair from moving backward. In this state, the lifting control means determines that the lifting control means is not in the mounted state, and the lifting and lowering movement of the lifting frame is prohibited. Since the lifting frame does not move up and down when the prevention of wheelchair retreat is released by the belt, it can prevent the wheelchair from moving backward and falling from the mounting body when moving up and down the lifting frame. .
Therefore, it has become possible to provide a vehicle lifting apparatus that can prevent the wheelchair from retreating and falling from the mounting body while moving up and down the lifting frame.

  According to a third characteristic configuration of the vehicle lifting and lowering device according to the present invention, in the first or second characteristic configuration, the reverse prevention belt includes a rod-shaped handrail member that is attached to and detached from the connection portion at a belt front end portion. The connection portion is configured to hold the attached handrail member in a posture along the front-rear direction.

  That is, in a state in which the tip of the anti-reverse belt is attached to the connection part and the wheelchair is prevented from retreating by the anti-retraction belt, the handrail member is held at the connection part in a posture along the front-rear direction, When the wheelchair member is removed from the connecting portion in the state in which the wheelchair is prevented from being retracted by removing the connecting portion from the connecting portion, the belt end portion of the preventing belt is attached to and detached from the connecting portion. Since the handrail member can also be attached / detached, the handrail member can be easily attached / detached, thereby providing a vehicle lifting / lowering device capable of easily attaching / detaching the handrail member.

  According to a fourth characteristic configuration of the vehicle lifting apparatus according to the present invention, in any one of the first to third characteristic configurations, the backward movement of the wheel of the wheelchair placed on the rear end portion of the mounting body is received and prevented. The mountain-shaped ridge portion to be formed is provided in a state where the front surface thereof is steeper than the rear surface.

  In other words, the mountain-shaped protrusion provided at the rear end of the mounting body can prevent the wheelchair mounted on the mounting body from retreating. With the belt, it is possible to further prevent the wheelchair from retreating, and thus it is possible to provide a vehicle lifting device that can further prevent the wheelchair from retreating.

Embodiments of a vehicle lifting apparatus according to the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the vehicular lifting device is used by being mounted on the rear part of a vehicle V such as a wagon car provided with a door D that opens and closes in the vertical direction.
As shown in FIGS. 1 to 3, the vehicle lifting device includes a lifting platform 1 as a mounting body on which a wheelchair P can be freely mounted, and a connection extending upward from a lateral side portion on the front side of the lifting platform 1. An elevating frame 3 provided with a frame 2 and elevating operation means L for elevating the connecting frame 2 with respect to the vehicle V in order to elevate the elevating frame 3 in a parallel posture or a substantially parallel posture. ing. The vehicle elevating device is configured to be fixed to the rear portion of the vehicle V via the base frame 7 that supports the elevating operation means L.

  As shown in FIG. 2, the lifting operation means L is connected to the both ends of the base frame 7 in the lateral width direction on the base end side and to the both ends in the lateral width direction of the lifting frame 3 on the distal end side. A pair of left and right parallel quadruple link mechanisms 4, a pair of left and right hydraulic cylinders 5 for changing the posture of each of the pair of left and right parallel quadruple link mechanisms 4, and a hydraulic pump for supplying hydraulic oil to the pair of left and right hydraulic cylinders 5 6 (see FIG. 7).

And the said raising / lowering operation means L is the raising position (refer to FIG. 9 (A) and FIG. 10 (C)) on the ground or its vicinity, and the raising position of the same height as the floor surface of the vehicle V ( 9 (B) and FIG. 10 (B)) and the lifting frame 3 in a parallel posture or substantially in the storage position on the floor surface of the vehicle V (see FIGS. 9 (C) and 10 (A)). It is configured to move up and down in a parallel posture.
In other words, as shown in FIG. 9, the lifting operation means L moves the lifting frame 3 upward from the lowered position to the storage position, and as shown in FIG. 10, the lifting frame 3 is lowered from the storage position. It is configured to move up and down via the raised position when moving down to the position.
The lifting operation means L moves up and down via a position higher than the rising position and the storage position when the lifting frame 3 is moved upward from the raised position to the storage position, and when moved downward from the storage position to the lower position. Is configured to move.

Hereinafter, the details of each device and member will be described. In this embodiment, for the sake of convenience, the forward direction of the vehicle V is referred to as the front, the backward direction is referred to as the rear, and the left and right directions are specified while looking forward from the rear. I will explain.
In addition, although the right and left members are different from each other in terms of right and left, the members have substantially the same configuration, so only one of the left and right will be described, and members having different configurations on the left and right will be described each time.

As shown in FIG. 2, the base frame 7 is provided with base frame side brackets 8 projecting upward at both left and right ends thereof, and the upper link 9 and the lower link 10 constituting the parallel quadruple link mechanism 4 are provided. One end portion is pivotally connected to the base frame side bracket 8, and the other end portions of the upper link 9 and the lower link 10 are pivotally connected to an arm side bracket 13 provided at the upper end of the lifting arm 18. .
A support plate 16 is erected on the base frame 7 on the left outer side from the left machine frame side bracket 8. The support plate 16 is provided with a rotary encoder 15 that outputs a pulse in response to the swing of the lower link 10.
The parallel quadruple link mechanism 4 includes an upper link 9, a lower link 10, a base frame side bracket 8, and an arm side bracket 13. As shown in FIG. FIG. 2 shows a state in which the link cover 14 is removed.

As shown in FIG. 2, the connecting frame 2 is fixed to the lower end portion of the elevating arm 18 in a posture along the front-rear direction with a pair of left and right elevating arms 18 provided with the arm side bracket 13 on each of the upper end portions. It is comprised with the left-right paired vertical wall body 19 connected.
The vertical wall body 19 has an upper end fixedly connected to the lift arm 18 and is formed in a shape that bulges forward toward the lower side in a side view.

The lifting platform 1 is connected and supported by a fixed base portion 20 that is connected and supported in a fixed state across a pair of left and right vertical wall bodies 19 and an artificially swingable operation between the pair of left and right vertical wall bodies 19. And a rocking table portion 23.
As shown in FIG. 4, the fixing base portion 20 is formed slightly shorter than the length of the lower end portion of the vertical wall body 19 in the front-rear direction, and is fixed to the vertical wall body 19 so as not to protrude forward and backward from the vertical wall body 19. The front end portion of the swing base portion 23 is pivotally connected to the rear end portion of the vertical wall body 19 so as to be swingable around the horizontal axis.

The oscillating base portion 23 has a falling posture (see FIG. 8 (a)) in which the rear placement portion 23b for placing and supporting the wheelchair P is horizontal or substantially horizontal, and the rear placement portion 23b is vertical or substantially vertical. The elevator 1 is configured to be swingable to a standing posture (see FIG. 8B), and the lift 1 is lifted by swinging the swing base portion 23 so as to be in a fall posture. 1 is extended in the front-rear direction so that the wheelchair P can be placed, and the vehicle lifting device is housed in the vehicle V by swinging the swing base portion 23 so as to be in a standing posture. It is configured so that it can be stored.
When the oscillating base portion 23 is changed to the standing posture, the oscillating base portion 23 swings in a direction opposite to the direction of switching to the falling posture, and the front surface of the oscillating base portion 23 contacts the upper surface of the fixed base portion 20. In addition, in a state where the oscillating base part 23 is changed to the overturned state, the swinging in the direction opposite to the direction of switching to the standing state is the lower surface of the front part of the oscillating base part 23. Is regulated by contacting the upper surface of the fixed base portion 20.
Although not shown, the rocking base portion 23 is provided with a gas damper that assists the rocking operation.

As shown in FIG. 4, by setting the lifting platform 1 in a mountable state, the fixed platform portion 20 is swung so that there is no or substantially no step and gap behind the stationary platform portion 20 b. The wheelchair P can be placed and supported across the fixed base portion 20 and the swing base portion 23 by arranging the rear mounting portion 23b of the moving base portion 23, and the lifting platform 1 can be stored. By doing so, as shown in FIG. 8 (a), the oscillating base part 23 is positioned above the fixed base part 20 and the elevator base 1 is accommodated within the longitudinal width of the vertical wall body 19, whereby the vehicle elevator apparatus The door D can be closed in a state where the door is raised to the storage position, and the vehicle lifting device can be stored in the vehicle V.
The lifting platform 1 is provided with a storage detection sensor 27 (see FIG. 7) that detects whether or not the lifting platform 1 is retractable, that is, whether or not the swinging platform portion 23 is in a standing posture.

As shown in FIG. 4, a mountain-shaped front protrusion that receives and blocks the forward movement of the wheel 21 (especially the caster wheel 21 a) of the wheelchair P placed on the front end portion of the fixed base portion 20 that is the front end portion of the lifting platform 1. A portion 20a is provided. The front inclined surface located at the front end of the front protrusion 20a and the rear inclined surface positioned at the rear end of the front protrusion 20a are formed in a state of being separated in the front-rear direction. A flat surface parallel to the placement surface on which the wheelchair P is placed is formed between the front surface and the rear surface of the strip portion 20a.
Further, a mountain-shaped rear ridge that receives and prevents the wheel 21 (particularly the large wheel 21b) of the wheelchair P placed on the rear end of the swinging base portion 23, which is the rear end of the lifting platform 1, from being retracted. 23a (corresponding to the protruding portion) is provided in a state where the front surface thereof is steeper than the rear surface. The front inclined surface located at the front end of the rear ridge 23a and the rear inclined surface located at the rear end of the rear ridge 23a are formed in a continuous state in the front-rear direction.
Moreover, as shown in FIGS. 4 and 5, rail portions 23 c that restrict the lateral movement of the wheelchair P placed on the left and right ends of the swing base portion 23 place and support the wheelchair P. It protrudes upward from the upper surface of the rear mounting portion 23b and is formed in a shape along the front-rear direction.
Incidentally, the rear protrusion 23a is formed between the pair of left and right rail portions 23c, and the height thereof is lower than the height of the rail portion 23c.

  As shown in FIG. 3, the vehicle elevating device includes a wheelchair P that is provided with a retraction preventing belt 32 that is wound around the backrest 31 of the wheelchair P placed on the elevating platform 1 so as to receive and regulate the retreat. In a state where the belt is unwound from the belt winder 33 provided in the elevating frame 3 in a state of being positioned in front of the planned position of the backrest portion 31 and laterally outside of the planned wheelchair existing space, and the front end of the belt Is provided in a state of being attached to and detached from the connecting portion 34 provided in the connecting frame 2.

The back-prevention belt 32 includes a rod-like handrail member 35 that is attached to and detached from the connection portion 34 at the belt front end.
In other words, as shown in FIG. 6, the belt-side connection member 37 is provided at the distal end of the belt main body 36 whose base end side is wound around the belt winder 33 so as to be retractable. Is provided. Then, the base end side of the handrail member 35 is connected to the belt side connecting member 37 using a connecting means 38 having pins, spacers, etc., and the handrail member 35 is connected to the front end of the handrail member 35. A handrail side connection member 39 for connecting to the connection portion 34 is provided.

  The belt winder 33 is provided at the lower end portion of the left side surface of the vertical wall 19 on the right side of the lifting frame 3 so as to be swingable around the horizontal axis, and is urged toward the winding side at a set speed or less. In this state, the base end side of the reverse movement preventing belt 32 is wound up in a state where the feeding is restricted.

The connection portion 34 is configured to integrally hold the handrail member 35 in a posture along the front-rear direction as the handrail-side connection member 39 of the handrail member 35 is inserted into the insertion port 40 of the connection portion 34. ing.
The connection portion 34 is provided with a holding release button 41 for releasing the connection of the handrail member 35. By pushing the holding release button 41 in a state where the handrail member 35 is connected, the handrail member 35 is operated. The handrail side connection member 39 is pushed out from the insertion port 40 and is released.
Further, the connection part 34 is provided with a connection detection sensor 43 as connection detection means for detecting attachment / detachment of the retraction prevention belt 32 to / from the connection part 34.
Incidentally, the connecting portion 34 may be provided in a fixed state on the connecting frame 2, and the connecting handrail member 35 can be pivoted at a set angle upward from the angle at which the handrail member 35 connected becomes a horizontal posture along the front-rear direction. It may be provided.

  On the left side surface of the right lifting arm 18 in the connecting frame 2, a hook member 42 that can be engaged with an anti-retraction belt 32 that is not connected to the connecting portion 34 is provided. The handrail side connection member 39 of the handrail member 35 is hooked and engaged. That is, the hook member 42 is in a state in which the belt front end portion of the receding prevention belt 32 is positioned in front of the planned position of the backrest 31 of the wheelchair P and laterally outward from the planned wheelchair existing space. Are configured to be engaged and supported.

  The left raising / lowering arm 18 in the connecting frame 2 is provided with a manual pendant type operation tool 44, and the pendant type operation tool 44 is instructed to move the raising / lowering frame 3 upward to the storage position side. An ascending button 44a and a descending button 44b for instructing the descending movement of the elevating frame 3 to the descending position side are provided.

  As shown in FIG. 7, the vehicular elevating device having such a configuration is controlled such that the operation of the pump electric motor M that drives the hydraulic pump 6 forward and reverse is controlled by the control device H as the elevating control means. It is configured. The control device H is input with detection information from the rotary encoder 15, detection information from the storage detection sensor 27, detection information from the connection detection sensor 43, and various command information from the pendant operation tool 44 for manual operation. It is configured.

The control device H lowers the lifting frame 3 by rotating the pump electric motor M and extending the pair of left and right hydraulic cylinders 5 as the raising button 44a of the pendant operation tool 44 is pushed. As the pendant operation tool 44 is pushed down, the pump electric motor M is driven to rotate to move the pair of left and right hydraulic cylinders 5 as the pendant operation tool 44 is pushed down. By shortening, the operation of the elevating operation means L is controlled so that the elevating frame 3 is moved downward from the storage position to the lowered position via the raised position.
In the raised position, the operator who operates the pendant operation tool 44 by stopping the raising / lowering movement of the lifting / lowering frame 3 regardless of whether or not the raising button 44a or the lowering button 44b is pressed is in the raised position. The lifting frame 3 is configured to be easily stopped. Incidentally, when the lifting frame 3 is stopped at the raised position, the lifting and lowering movement of the lifting frame 3 is resumed by pressing the lifting button 44a or the lowering button 44b again.

Further, the control device H determines whether or not the back-prevention belt 32 is attached to the connection portion 34 based on the detection information of the connection detection sensor 43, and is in the attachment state. When it is determined that the lifting frame 3 is allowed to move up and down, and when it is determined that it is not in the mounted state, the operation of the lifting operation means L is controlled so as to prohibit the lifting and lowering frame 3 from moving up and down. It is configured.
Further, the control device H determines whether or not the lifting platform 1 is in the retractable state based on the detection information of the storage detection sensor 27, and if it is determined that it is in the retractable state, the lifting frame 3 The lifting / lowering operation means L is controlled to prohibit the lifting / lowering movement of the lifting / lowering frame 3 when the lifting / lowering movement of the lifting / lowering frame 3 is prohibited.
Incidentally, the control device H prohibits the raising / lowering movement of the elevating frame 3 when it is determined that it is not in the mounted state and is not in the retractable state, and when it is determined that it is not in the mounted state, or is not in the retractable state. When only one of them is determined, the lifting frame 3 is allowed to move up and down.

Hereinafter, the operation of the vehicle elevating device by the control device H when the wheelchair P is getting on and off the vehicle V will be described.
First, a case where the wheelchair P is put on the vehicle V will be described.
In the state where the vehicle lifting device is housed in the vehicle V, as shown in FIG. 9 (c), the lifting platform 1 is stood up and retracted in the state where the lifting frame 3 is located at the storage position. The prevention belt 32 is not attached to the connecting portion 34 but is locked to the hook member 42 (see FIG. 2). When the lowering button 44b of the pendant type operation tool 44 is pushed in such a state, the lifting frame 3 is lowered to the raised position, and when the lowering button 44b of the pendant type operation tool 44 is pushed again, The elevating frame 3 is lowered to the lowered position.
In the state where the lifting frame 3 is lowered to the lowered position in this way, as shown in FIG. 9 (a), the lifting platform 1 is turned over to be able to be placed, and the wheelchair P is moved from the ground onto the lifting platform 1. When the lift button 44a of the pendant-type operation tool 44 is pushed after being moved and the retraction prevention belt 32 is attached to the connecting portion 34 and the wheelchair P is prevented from retreating, the elevating frame 3 is raised to the raised position. .
Then, as shown in FIG. 9 (b), in a state where the elevating frame 3 is raised to the raised position, the reverse prevention belt 32 is detached from the connecting portion 34 and the wheelchair P is moved onto the floor surface of the vehicle V. When the raising button 44a of the pendant type operation tool 44 is pushed after the raising / lowering stand 1 is stood up to the stowable state, the raising / lowering frame 3 is raised to the stowed position as shown in FIG. .

Next, a case where the wheelchair P is dismounted from the vehicle V will be described.
The state in which the vehicle lifting device is housed in the vehicle V is as described above, and when the lowering button 44b of the pendant operation tool 44 is pushed in this state, the lifting frame 3 is lowered to the raised position.
In the state where the lifting frame 3 is lowered to the raised position in this way, as shown in FIG. 10 (b), the lifting platform 1 is turned over so that it can be placed, and the wheelchair P is moved up and down from the floor of the vehicle V. When the lowering button 44b of the pendant-type operation tool 44 is pushed after being moved onto the table 1 and the backward movement preventing belt 32 is attached to the connecting portion 34 to prevent the backward movement of the wheelchair P, the lifting frame 3 is moved to the lower position. Raise to.
Then, as shown in FIG. 10 (c), in the state where the elevating frame 3 is lowered to the lowered position, the retreat prevention belt 32 is detached from the connecting portion 34, and the wheelchair P is moved onto the ground of the vehicle V to move up and down. When the raising button 44a of the pendant type operation tool 44 is pushed after the stand 1 is stood up in the retractable state, the lifting frame 3 is raised to the raised position, and the raising button 44a of the pendant type operation tool 44 is moved again. When the push operation is performed, as shown in FIG. 10A, the elevating frame 3 is raised to the storage position.

[Another embodiment]
(1) In the above embodiment, the elevating arm 18 in the connecting frame 2 is provided with the hook member 42 that can engage the retraction preventing belt 32, and the retreat preventing belt 32 is not connected to the connecting portion 34. The belt end portion of the belt 32 is configured to be hooked and engaged with the hook member 42. However, the elevating arm 18 in the connecting frame 2 is provided with a guide mechanism for guiding the retreat prevention belt 32 to the wheelchair P side. A guide pulley for guiding the belt main body 36 of the reverse movement prevention belt 32 and a support member for rotatably supporting the guide pulley, and for passing the reverse movement prevention belt 32 formed between the guide pulley and the support member. The gap is made larger than the thickness of the belt main body 36 and smaller than the thickness of the belt front end portion (handrail member 35), and the belt front end portion is caught by the guide member. Thus, the belt tip may be configured not to be wound on the belt winder side with respect to the guide member.

( 2 ) In the above embodiment, the lifting control means H determines whether or not it is in the attached state in which the reverse movement prevention belt 32 is attached to the connecting portion 34 based on the detection information of the connection detecting means 43. When it is determined that the lift frame 3 is in the mounted state, the lift frame 3 is allowed to move up and down. Although it is configured to control, regardless of whether or not the retraction prevention belt 32 is attached to the connecting portion 34, the elevator 34 moves up and down if there is a lifting command from the operation tool 44 that commands the lifting and lowering frame 3 to move up and down. You may comprise so that the action | operation of the raising / lowering operation means L may be controlled so that the frame 3 may be moved up and down.

( 3 ) In the embodiment described above, the rod-like handrail member 35 is provided at the tip portion of the receding prevention belt 32. However, the handrail member 35 may not be provided at the tip portion of the receding prevention belt 32, and the belt side connection is possible. The working member 37 may be configured to be directly connected to the connecting portion 34.
Further, the handrail member 35 may be configured to be attached to and detached from the tip portion of the receding prevention belt 32 as required, and the connection portion 34 is attached to and detached from both the belt side connection member 37 and the handrail side connection member 39. You may comprise so that it can do.
Incidentally, the handrail member 35 and the receding prevention belt 32 may be attached to and detached from the handrail connecting portion provided in the connecting frame 2.

( 4 ) In the above-described embodiment, the mountain-shaped ridge 23a is provided at the rear end of the mounting body 1, but the mountain-shaped ridge 23a is not provided at the rear end of the mounting body 1. Alternatively, instead of the ridge portion 23a, a regulation plate whose posture can be changed between a fall posture that allows the wheelchair P to move backward and a standing posture that regulates the backward movement of the wheelchair P may be provided.
Moreover, when providing the protrusion part 23a in the rear-end part in the mounting body 1, the shape of the protrusion part 23a is suitably formed, for example, providing with a flat surface similarly to the front side protrusion part 20a, or forming it in the shape of a paddle. It can be changed.

( 5 ) In the above embodiment, the mounting body 1 is configured to be switched between the retractable state and the mountable state by swinging a part of the mounting body 1. The mounting body 1 may be configured to be switched between a retractable state and a mountable state by swinging the entire body 1.

( 6 ) In the above embodiment, when the elevating frame 3 is moved up and down, it is temporarily stopped at the raised position regardless of the operating state of the operation tool 44. However, when the raised position is reached in the folded state, If the ascending switch 44a or the descending switch 44b of the operation tool 44 is being pushed, the relationship between the lifting control device H and the operation of the operation tool 44 can be changed as appropriate, such as raising and lowering the storage tool or the lowering position as it is. is there.

( 7 ) In the above-described embodiment, the mounting body 1 is mounted by swinging a part or all of the mounting body 1 between a falling posture that is horizontal or substantially horizontal and a standing posture that is vertical or substantially vertical. Although it is configured to switch between the mountable state and the retractable state, the rear position where the mounting body 1 is slid rearward with respect to the connecting frame 2 and the mounting body 1 are moved forward with respect to the connecting frame 2. You may comprise so that the mounting body 1 may be switched to a mounting possible state and a stowable state by slidably moving to the front position to which it was slid, maintaining the horizontal attitude | position which is horizontal or substantially horizontal.

( 8 ) In the above-described embodiment, the belt winder 33 is configured to wind the proximal end side of the receding prevention belt 32 in a state in which the belt winder 33 is urged toward the winding side and the feeding at a set speed or higher is restricted. However, the belt winder 33 may be configured to wind up the proximal end side of the receding prevention belt 32 in a state in which the winding means is operated by operating the driving means such as rotating the electric motor forward and backward. .

( 9 ) In the above embodiment, a wagon car is shown as an example of the vehicle V, and an example in which an elevating device is attached to the rear part of the wagon car. However, as the vehicle V, in addition to the wagon car, It can be applied to various vehicles such as buses and trucks. Also, the mounting location is not limited to the rear portion of the vehicle V, but is mounted on an intermediate portion in the front-rear direction of the vehicle V and the like, and the elevator 1 is lowered to the outside of the lateral side of the vehicle V. It can also be implemented.

Perspective view showing the rear of the vehicle The perspective view which shows the raising / lowering apparatus for vehicles A perspective view showing an elevating frame and a reverse prevention belt Longitudinal side view showing a lifting device for a vehicle Plan view showing a lifting device for a vehicle The figure which shows the front-end | tip part and connection part of a backlash prevention belt Control block diagram Action diagram showing the operation of the platform Action diagram showing the operation of the lifting device for a vehicle Action diagram showing the operation of the lifting device for a vehicle

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting body 2 Connection frame 3 Elevating frame 23a Projection part 31 Backrest part 32 Retraction prevention belt 33 Belt winder 34 Connection part 35 Handrail member 43 Connection detection means H Elevating control means L Elevating operation means P Wheelchair V Vehicle

Claims (4)

A lifting frame having a pair of connecting frame extending upwardly from the respective front side both lateral sides of the the mounting freely mounting body and mounting body wheelchair,
In order to raise and lower the elevating frame in a parallel posture or a substantially parallel posture to a lowered position on or near the ground and a raised position having the same height as or substantially the same height as the vehicle floor, An elevating device for a vehicle comprising elevating operation means for elevating and
The back-prevention belt that wraps around the backrest part of the wheelchair placed on the mounting body so as to receive and regulate the retreat is in front of the planned position of the backrest part of the wheelchair and more than the planned space of the wheelchair. In a state where the belt is wound out from a belt winder provided at the lower end of one of the connecting frames in a state of being positioned laterally outside, and in a state of being positioned behind and above the belt winder, the other A vehicle elevating device provided in a state in which a belt tip is attached to and detached from a connecting portion provided in the connection frame. Connection detecting means for detecting attachment and detachment of the reverse preventing belt to the connecting portion;
Based on the detection information of the connection detection means, it is determined whether or not it is in a mounted state in which a reverse movement prevention belt is mounted on the connecting portion. 2. An elevating control means for controlling the operation of the elevating operation means is provided so as to permit the elevating movement of the elevating and prohibiting the elevating movement of the elevating frame when it is determined that it is not in the mounted state. Vehicle lifting device. The reverse prevention belt is configured to include a rod-like handrail member attached to and detached from the connection portion at a belt front end portion.
The vehicle elevating device according to claim 1 or 2, wherein the connection portion is configured to hold the mounted handrail member in a posture along a front-rear direction.   A mountain-shaped ridge that receives and prevents retraction of a wheel of a wheelchair placed on the rear end portion of the mounting body is provided in a state where the front surface is steeper than the rear surface. The vehicle lifting apparatus according to any one of claims 3 to 4.

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