JP2003341409A - Vehicular elevating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily change over a receiving body to a permitting attitude and lock the receiving body to a blocking attitude by preventing the receiving body from being brought into a state inhibiting the change-over to the permitting attitude without remarkably increasing the cost thereof. <P>SOLUTION: This vehicular elevating device is provided with: the receiving body 28 manually rotatable to the blocking attitude and the permitting attitude; and a manually-operable lock mechanism K for locking the receiving body 28 at the blocking attitude. The elevating device is also provided with an attitude-changing actuator for executing a permitting-side actuation for changing over the receiving body 28 to the permitting attitude and a blocking-side actuation for changing over the receiving body to the blocking attitude. The actuator is engaged with the receiving body 28 and the lock mechanism K so as to allow the unlock operation of the lock mechanism K by the permitting-side actuation to rotate the receiving body 28 to the permitting attitude, and to rotate the receiving body 28 to the blocking attitude and stop the unlock operation of the lock mechanism K by the blocking-side actuation. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting portion of a mounted object parallel to or substantially parallel to a descending position on or near the ground and an ascending position at the same height or substantially the same height as the floor surface of a vehicle. A raising / lowering operation means capable of raising and lowering in a parallel posture, a blocking posture, which is provided in the placing portion and which receives and blocks the movement of the placed body outward from the placing portion, and the placed body. The receiving body that can be manually rotated in an allowable posture that allows it to move outward from the placing part, and the receiving side that is biased toward the lock side that locks the receiving body in the blocking posture, The present invention relates to a lifting device for a vehicle, which is provided with a manually-operated lock mechanism that automatically locks when the body is in the blocking posture and that can be unlocked by a manual operation.

[0002]

2. Description of the Related Art In the above-described vehicle lifting device, a user is sitting on a wheelchair as a mounted object, and the wheelchair is mounted on the mounting part. It is used to transfer the wheelchair between the vehicle and the ground by lowering the wheelchair from the vehicle to the descending position or vice versa. In such a lifting device for a vehicle, by locking the receiving body in the blocking posture, it is possible to prevent a placed object such as a wheelchair from being accidentally moved outward from the placing part while the placing part is being raised or lowered. The object to be placed such as a wheelchair is transferred from the placing portion to the ground by switching the receiving body to the allowable posture.

In this type of vehicle lifting device, for example, as disclosed in Japanese Unexamined Patent Publication No. 2000-326781, a lock mechanism is provided with a lock member that is engaged with and disengaged from a rotating body that rotates integrally with a receiving body. When the receiving body is in the blocking posture, the receiving body is engageable with the rotating body and elastically biased toward the engaging side, and the receiving body is locked in the blocking posture by the engagement of the locking tool with the rotating body. Composed,
A lever for manual operation that rotates integrally with the lock is provided. Then, when the mounted object such as a wheelchair is transferred from the mounting portion to the ground, the lock is manually released from the rotating body to unlock the lock mechanism, and further, the manual operation is performed. By the operation, the receiving body is rotated to the allowable posture. In addition, when the receiving body such as a wheelchair is transferred to the placing portion and then the receiving body is locked in the blocking posture, the receiving body is manually rotated to the blocking posture, and the receiving body moves to the blocking posture. When it comes to, it will be automatically locked by the biasing force.

[0004]

However, in the above-mentioned conventional vehicle lifting device, the unlocking operation of the lock mechanism and the rotating operation of the receiving body are performed manually, so that the receiving body is placed in the allowable posture. It is necessary to perform a manual operation each time it is switched and each time the receiving body is locked in the blocking posture, and it is troublesome to switch the receiving body to the allowable posture and to lock the receiving body in the blocking posture. Has become.

Therefore, in order to eliminate the above-mentioned disadvantages, it is conceivable to perform the unlocking operation of the lock mechanism and the rotating operation of the receiving body by electric operation instead of manual operation, but instead of manual operation, However, if the lock mechanism is unlocked and the receiving body is rotated by an electric operation, the receiving body may not be able to be switched to the allowable posture, which may lead to a significant increase in cost.

To add a description, for example, Japanese Patent Laid-Open No. 4-33
As disclosed in Japanese Patent No. 4630, an electric cylinder is provided as an actuator for posture switching for performing an allowable side operation for switching a receiving body to an allowable posture and a blocking side operation for switching a receiving body to a blocking posture. It is conceivable that the receiving body is rotated by the allowable side operation and the blocking side operation of the cylinder. However, in this case, by stopping the operation of the electric cylinder with the receiving body switched to the blocking posture, the receiving body is locked in the blocking posture.
If the electric cylinder fails in that state, the electric cylinder cannot operate on the allowable side and the receiving body cannot be switched to the allowable posture.

Further, an actuator for posture switching for performing an operation on the permitting side for switching the receiving body to the allowable posture and an operation for blocking on the side for switching the receiving body to the blocking posture, and an actuator for unlocking for releasing the locking mechanism. It is conceivable that the lock mechanism is unlocked by the release operation of the lock releasing actuator, and the receiving body is rotated by the allowance side operation and the block side operation of the attitude switching actuator. However, in this case, since an actuator for unlocking the lock mechanism and an actuator for rotating the receiving body are provided, the cost is inevitably increased.

The present invention has been made by paying attention to such a point, and an object thereof is to prevent the receiving body from falling into a state in which the receiving body cannot be switched to the allowable posture without causing a great increase in cost. An object of the present invention is to provide an elevating device for a vehicle, which can switch the receiving body to the allowable posture and can easily lock the receiving body in the blocking posture.

[0009]

In order to achieve this object, according to the invention as set forth in claim 1, the mounting portion of the mounting body is placed on or near the ground, and the floor surface of the vehicle. And a raising / lowering operation means capable of raising / lowering in a posture parallel or substantially parallel to an ascending position having the same height or substantially the same height, and the mounting part, which is provided in the mounting part, and the mounted body is provided outside the mounting part. And a receiving body that can be manually rotated in a blocking posture that receives and blocks the movement of the receiving body and an allowable posture that allows the placed body to move outward from the placing portion. Is provided with a manually operated lock mechanism that is urged toward the lock side to lock in the blocking posture, automatically locks when the receiving body is in the blocking posture, and can be unlocked by a manual operation. The above-mentioned receiving A posture switching actuator is provided for performing a permissive side operation for switching the body to the permissible posture and a blocking side operation for switching the receiving body to the blocking posture, and the actuator locks the lock mechanism by the permissive operation. In order to stop the lock release operation of the lock mechanism while rotating the receiving body to the blocking posture by the releasing operation and rotating the receiving body to the allowable posture, the blocking side operation. And is linked to the locking mechanism.

That is, an allowable attitude switching command for switching the receiving body to the allowable attitude is given, and the actuator can be operated on the allowable side based on the allowable attitude switching command. The lock mechanism is unlocked to rotate the receiving body to the allowable posture, and the receiving body is switched to the allowable posture. Further, a blocking posture switching command for switching the receiving body to the blocking posture is given, and the actuator can be operated on the blocking side based on the blocking posture switching command, and the receiving body is operated by the blocking side operation of the actuator. The rotation operation is performed in the blocking posture and the unlocking operation of the lock mechanism is stopped, and the receiving body is switched to the blocking posture and locked in the blocking posture.

Therefore, by performing the unlocking operation of the lock mechanism and the pivoting operation of the catching body by the allowance side operation and the blocking side operation of the attitude switching actuator, the catch body is allowed to be in the allowance posture without manual operation. Or the receiving body can be switched to the blocking posture and locked in the blocking posture.

Moreover, since the lock mechanism can be manually unlocked to unlock the lock mechanism and the receiving body can be manually rotated, the actuator can be used as a posture switching actuator when a failure occurs. By using an actuator that allows unlocking of the lock mechanism and rotation of the receiving body by manual operation, even if the actuator for posture switching fails when the receiving body is locked in the blocking posture, it can be operated manually. ,
It is possible to rotate the receiving body to the allowable posture by performing the lock release operation of the lock mechanism. Therefore,
Even if the posture switching actuator fails when the receiving body is locked in the blocking posture, it is possible to prevent the receiving body from falling into a state in which the receiving body cannot be switched to the allowable posture.

Furthermore, since the unlocking operation of the lock mechanism and the rotating operation of the receiving body are performed by the allowance side operation and the blocking side operation of the attitude switching actuator, the receiving operation can be performed only by providing the attitude switching actuator. The body can be switched to the allowable posture and the receiving body can be locked to the blocking posture.
Therefore, the receiving body can be switched to the allowable posture and the receiving body can be locked in the blocking posture without causing a large increase in cost.

From the above, it is possible to prevent the receiving body from falling into a state in which the receiving body cannot be switched to the permissible posture without causing a large increase in cost, and to switch the receiving body to the permissible posture and to receive the receiving body. It has become possible to provide a lifting device for a vehicle that can easily lock a body in a blocking posture.

According to the second aspect of the present invention, the lock mechanism includes a lock member for engaging and disengaging the rotating body that rotates integrally with the receiving body when the receiving body is in the blocking posture. Is configured to be engageable with and elastically biased toward the engagement side, and is configured to lock the receiving body in the blocking posture by engagement of the locking tool with the rotating body. A drive rotating body that is operated to perform forward rotation operation and return rotation operation about the coaxial body with the rotation body by the allowance side operation and the blocking side operation is provided, and the drive rotation body is provided by the initial rotation of the forward rotation. The rotating body is provided with a cam portion for pressing the lock tool to the disengagement side to disengage from the rotating body, and the rotating body is rotated in a state where relative rotation is allowed in the initial rotation of the forward rotation. Coupled manner, said actuator is linked to the receiving body and the locking mechanism.

That is, the drive rotation body is operated to move forward by the allowance operation of the actuator, and in the initial rotation of the forward rotation of the drive rotation body, relative rotation with respect to the rotation body is allowed, and only the drive rotation body is allowed. By the forward rotation of only the drive rotating body, the lock member is disengaged from the rotating body by the cam portion, and the lock mechanism is unlocked, while the rotating body is rotated. Without this, the receiving body will not be rotated. After that, when the forward rotation of the drive rotating body advances and the relative rotation with respect to the rotating body is released, the forward rotation of the drive rotating body rotates the rotating body, and the rotation of the rotating body causes the receiving body to move. It will be rotated to an allowable posture.

Therefore, by the actuation of the actuator on the allowance side, first, only the drive rotating body is rotated forward to unlock the lock mechanism, and thereafter, the rotating body is rotated by the forward rotation of the drive rotating body. As a result, the receiving body can be rotated and operated in the allowable posture.

Further, the actuation of the actuator on the blocking side causes the driving rotary member to perform the backward rotation operation, and in the backward rotation of the driving rotary member, the driving rotation is performed while the cam portion does not press the lock tool toward the disengagement side. The moving body and the rotating body rotate integrally, and the rotation of the rotating body causes the receiving body to rotate to the blocking posture. Therefore, due to the actuation of the actuator on the blocking side,
By integrally rotating the drive rotating body and the rotating body, the receiving body can be rotated to the blocking posture and the unlocking operation of the lock mechanism can be stopped.

As described above, the rotating body, the locking tool,
And, by providing the drive rotating body and linking the actuator with the receiving body and the lock mechanism,
With a simple structure, switch the receiving body to the allowable posture,
In addition, the receiving body can be locked in the blocking posture.

According to the third aspect of the invention, a damper is provided for damping the rotational speed when the receiving body rotates toward the allowable posture side due to the weight of the receiving body.

That is, by damping the rotational speed of the receiving body rotating toward the allowable posture side by the damper, the receiving body is rotated to the allowable posture while the rotational speed of the receiving body is attenuated. Become. Therefore, since the receiving body can be smoothly rotated to the allowable posture without being rapidly rotated to the allowable posture, the receiving body is not uncomfortable and the receiving body is not damaged. Will be prevented.

According to the fourth aspect of the present invention, the lock mechanism, the actuator, and the drive rotating body are disposed on the lateral one end side of the placing section, and the lateral side of the placing section is provided. The damper is arranged on the other end side.

That is, the lock mechanism, the actuator,
Also, by disposing the drive rotating body on one lateral side of the mounting portion, a linking member for linking the actuator to the receiving body and the lock mechanism is concentrated on the lateral one side of the mounting portion. Therefore, the damper is arranged on the side of the other side of the mounting portion opposite to the linking member. Therefore, it is possible to dispose the linking member for linking the actuator with the receiving body and the lock mechanism in an easily linked state, and to disperse the linking member and the damper on both lateral sides of the mounting portion. Thus, it is possible to dispose the linking member and the damper in a well-balanced manner while minimizing the space for disposing each member.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a vehicle lifting device according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, this vehicle lifting device is, for example, a vehicle V such as a wagon vehicle provided with a vertical opening / closing door D at the rear.
In this case, it is used by being mounted on the rear part.
Further, the vehicle lifting device is provided with a wheelchair C as a mounted body.
An elevator table 1 as a placing part for placing and elevating the table, a holding frame 2 for holding the elevator table 1, a pair of left and right lifting arms 3 for supporting the holding frame 2 at a lower end portion, and a pair of left and right lifting arms 3. A pair of left and right parallel quadruple link mechanisms 4 connected to the vehicle V side, a pair of left and right hydraulic cylinders 5 as a lifting operation means for driving the left and right parallel quadruple link mechanisms 4 to lift and lower the lifting platform 1, and its hydraulic pressure. A cylinder electric pump 6 for supplying hydraulic oil to the cylinder 5 and the like are provided, and it is configured to be fixed to the rear portion of the vehicle V via a base frame 7 supporting the parallel four-link mechanism 4.

Next, the details of each device and member will be described. In the present specification, for convenience, the forward direction of the vehicle V is referred to as the front and the backward direction is referred to as the rear. The direction is specified and explained. Also, regarding the members located on the left and right, although there are differences in left and right,
Since the configurations are substantially the same, only one of the left and right will be described, and a description will be added each time for a member having a different configuration on the left and right.

As shown in FIG. 3, the base frame 7 is provided with base frame side brackets 8 projecting upward at both left and right ends thereof,
One ends of the upper link 9 and the lower link 10 that form the parallel four-link mechanism 4 are pivotally connected to the base frame side bracket 8 via pins 11a and 12a, respectively. Further, the other ends of the upper link 9 and the lower link 10 are respectively pin 11 to the arm side bracket 13 provided on the upper end of the elevating arm 3.
It is pivotally connected via b and 12b. The left and right parallel quadruple link mechanisms 4 are constituted by the both links 9 and 10 and the brackets 8 and 13.
Are covered by the link cover 14.

FIG. 3 shows the left parallel quadruple link mechanism 4 with the link cover 14 removed. In the left parallel quadruple link mechanism 4, the lower link 10 is attached to the base frame side bracket 8. A pin 12a pivotally connected to the lower link 10 is fixed to the lower link 10 side so as to rotate integrally with the lower link 10.

As shown in FIG. 4, a holding frame 2 for the lifting table 1 is attached to the lower ends of the pair of left and right lifting arms 3, and the holding frame 2 allows the lifting table 1 to slide in the front-rear direction. Held in.

The hydraulic cylinder 5 is a return type cylinder, and as shown in FIG. 3, the cylinder side thereof has a pin 12 for pivotally supporting the lower link 10 with respect to the base frame side bracket 8.
The rod side is pivotally connected so as to be rotatable relative to a, and the rod side is
The arm side bracket 13 is pivotally connected to a pin 11b that pivotally supports the upper link 9. Then, by expanding and contracting the pair of left and right hydraulic cylinders 5, the elevating frame 2 and the elevating table 1 are maintained in a horizontal posture by the action of the parallel four-link mechanism 4 and shown in FIG. As described above, the lifting platform 1 is moved from the rear of the vehicle V to the outside in the direction away from the vehicle V, and is grounded on the ground G.
Or, a descending position A1 for descending near the ground G,
While being raised, the vehicle V is moved in a direction approaching the vehicle V, and as shown in FIG. 20B, a raising / lowering operation can be performed over a floor F of the vehicle V and an ascending position A2 for raising the height to substantially the same height. Has been done.

A pair of left and right link covers 14
Among these, a through hole is provided in the left wall surface of the link cover 14 on the left side, and the pin 12 a for pivotally supporting the lower link 10 with respect to the base frame side bracket 8 penetrates through the through hole and the link cover 14 is provided. It extends to the outside, and as shown in Figure 5,
A dog plate 15 having an upper limit dog 15a and a lower limit dog 15b is attached to the extended end portion thereof.
Is configured to rotate integrally with the pin 12a and the lower link 10. Then, the base frame 7 is provided with an upper limit detection sensor 16a and a lower limit detection sensor 16b, and when the upper limit dog 15a of the dog plate 15 contacts the upper limit detection sensor 16a, a lift table by the hydraulic cylinder 5 is provided. 1
Is stopped and the lower limit dog 15b comes into contact with the lower limit detection sensor 16b, the lift table 1 is moved by the hydraulic cylinder 5.
Is configured to be stopped.

As shown in FIGS. 4 and 6, the elevating frame 2 is formed in a U shape whose upper side is open when viewed from the rear side, and is laterally inward from the left and right wall surfaces thereof. Slide rollers 17 that rotate around the axis of the
And a slide electric motor 19 equipped with a pinion 18 is attached to the left wall surface.
On the wall surface on the right side, a plurality of guide idler rollers 20 are provided so as to rotate inwardly around the axial center in the vertical direction. The lift table 1 held by the lift frame 2 is formed in a rectangular shape in a plan view, rail members 21 and 22 having slightly different shapes are provided on the left and right side surfaces thereof, and the rail members 21 and 22 extend laterally outward. Sliding idler rollers 23, which rotate around the axis of the wheelchair, are each provided in a protruding manner, and the rear edge portion is opened as an entrance / exit edge portion for transferring the wheelchair C.

The slide rail 27 provided on the left side of the elevating frame 2 is fitted into the left rail member 31 provided on the elevating table 1, and the right rail member 32 is provided on the right rail member 32.
A slide idler roller 17 provided on the right side of the elevating frame 2.
The guide idler roller 20 is fitted inside. The elevating table 1 is held slidably in the front-rear direction with respect to the elevating frame 2 by a plurality of sliding idler rollers 17 provided on the elevating frame 2, and is guided by the guide idler roller 20. The horizontal movement of the lifting platform 1 with respect to the lifting frame 2 is prevented.

The left rail member 21 has a rack 2
4 is fitted inside and fixed to a rail member 21, and the pinion 18 is engaged with a rack 24 of the rack member 24. The slide electric motor 19 is driven to rotate in the forward and reverse directions. Is configured to roll on a pair of left and right rails 25 provided on the vehicle V side so that the elevating table 1 reciprocally slides in the front-rear direction with respect to the elevating frame 2. That is, as shown in FIG. 2, the sliding idler roller 23 is fitted between the rail 25 and the vibration prevention member 26 provided at the forefront of the rail 25, so that the vertical movement of the lift 1 is prevented. The retracted storage position A3 inside the vehicle V and the above-described raised position A2 protruding outward from the vehicle V are prevented.
The elevating table 1 is configured to be slidable over the above.

A plate-shaped front receiving member 27 is pivotally attached to the front end portion of the elevating frame 2 so that it can be switched between a storage position in which it is substantially horizontal and a standing position in which it is swung upward. It is configured. A rear receiving body 28 serving as a receiving body is rotatably attached to the rear end portion of the lifting table 1 so as to be rotatable.
In a state where the wheelchair C is erected by being swung upward,
A blocking posture B1 for stopping and blocking the movement and fall of the robot from the lifting platform 1, and the lifting frame 2 and the lifting platform 1 at the lowered position A1.
In the state in which the free end is rocked downward toward the rear side and is laid down, the free end of the wheel is grounded on the ground G to allow the wheelchair C to move. It is configured to be switchable by operation, and
A handrail 29 is provided on the left side of the lift 1.

The rear receiving member 28 is shown in FIG. 7 and FIG.
As shown in FIG. 5, at the entrance / exit edge portion which is the rear end edge of the lift 1, the left and right ends thereof are fixed to the fixed horizontal axis 30 along the longitudinal direction of the entrance / exit edge portion via the rear receiving body bracket 28a, That is, the fixed horizontal shaft 30 is pivotally mounted around the axis L1 of the fixed horizontal shaft 30. Incidentally, FIG. 7 is a diagram of the rear receiving body 28 as viewed from the left side, and FIG. 15 is a diagram of the rear receiving body 28 as viewed from the right side.

Hereinafter, each member arranged on the left side of the rear receiving body 28 will be described with reference to FIGS. 7 to 14.
By the way, FIG. 7 is a side view in a state in which each member is assembled, FIG. 8 is a rear side view in a state in which each member is assembled, and FIG. 9 is an exploded perspective view of each member, Figure 10
FIG. 11 is an exploded perspective view in which FIG. 9 is further disassembled and a part of the members are omitted, and FIGS. 11 to 14 are exploded side views showing a linked state of the respective members at the rotational position of the rear receiving body 28. Further, when describing each member disposed on the left side of the rear receiving body 28, the forward rotation indicates the clockwise rotation in the drawing, and the backward rotation indicates the counterclockwise rotation in the drawing. I shall.

On the left side of the rear receiving body 28, that is, on the lateral left end side of the lifting table 1, as shown in FIGS. 9 and 10, outside the rear receiving body bracket 28a, centering around the axis L1. A cam plate 31 as a rotating body that rotates integrally with the rear receiving body 28 is integrally connected to the rear receiving body bracket 28a, and the outside of the cam plate 31 rotates around the axis L1. A sprocket 32 as a drive rotating body for supporting the cam plate 31 and the sprocket 32 is provided in a state of being supported by the side wall of the lift 1.
The fixed horizontal shaft 30 is connected by a connecting pin 33 and is integrally rotatable around the axis L1 of the fixed horizontal shaft 30. Then, as shown in FIG. 8, a chain 35 is stretched over the motor-side sprocket 34 and the sprocket 32, and the sprocket 32 is for a rear receiving body as an actuator for posture switching mounted on the side surface of the lift 1. Electric motor 3
6 is provided so as to be rotated around the axis L1 of the fixed horizontal shaft 30.

The sprocket 32 is the rear receiving member 2
8 is switched to the permissible posture B2, and the backward rotation operation is performed by the permissive operation of the electric motor 36 for the rear receiving body, and the backward rotation is performed by the operation of the rear receiving body electric motor 36 for switching to the blocking posture B1. It is provided so that the operation can be rotated. Then, in the allowable side operation of the electric motor 36 for the rear receiving body, the sprocket 32 and the cam plate 31 are integrally rotated in the forward direction to rotate the rear receiving body 28 to the allowable posture B2,
In the blocking side operation of the electric motor 36 for the rear receiving body, the rear receiving body 28 is rotationally operated in the blocking posture B1 by integrally rotating the sprocket 32 and the cam plate 31 in the backward direction.

As the electric motor 36 for the rear receiving body, a motor that can rotate the sprocket 32 and the cam plate 31 around the axial center L1 of the fixed horizontal shaft 30 in the event of a failure is used. The rear receiving body 28 is fixed to the horizontal shaft 3
It is configured to be swingable around a zero axis L1.

Further, on the lift base 1, the rotating horizontal shaft 3 is arranged in a state of being close to the fixed horizontal shaft 30 and parallel to the fixed horizontal shaft 30.
7 is rotatably attached. Then, the lock plate 38 as a lock member is at a position corresponding to the cam plate 31,
A lock release rotary plate 39 corresponds to the sprocket 32 on the outside of the lock plate 38, which is pivotally mounted about the rotary horizontal shaft 37, that is, about the axis L2 of the rotary horizontal shaft 37. At the position, the rotation horizontal shaft 37 is pivotally attached about the axis L2 of the rotation horizontal shaft 37, and the lock plate 38 and the lock release rotation plate 39 are pivotally attached.
Are provided so as to integrally swing around the axis L2 of the rotating horizontal shaft 37.

The cam plate 31 has a lock notch 31
a is formed, and the lock plate 38 has a lock notch 31
A locking protrusion 38a that engages with a is formed, and as shown in FIGS. 9 and 11 (a), the lock plate 38 has a locking protrusion 38a when the rear receiving body 28 is in the blocking posture B1. Is engaged with the lock notch 31a and is provided elastically toward the engagement side by the coil spring 40. An operating lever 42 for manual operation is extended upward on the lock plate 38, and the operating lever 4
The lock protrusion 38a can be released from the lock cutout 31a by a manual operation of the lock release operation 2. Further, the coil spring 40 includes a lock plate side attachment 40 a provided on the lock plate 38 and a lift table 1 side attachment 40 provided on a side wall of the lift table 1.
When the rear receiving body 28 is interposed between b and is in the blocking posture B1, the elastic force of the coil spring 40 engages the locking protrusion 38a with the locking notch 31a to automatically perform the locking operation.

The cam plate 31, the lock plate 38, and the coil spring 40 constitute a manually operated lock mechanism K. The lock mechanism K is engaged with and disengaged from the cam plate 31 which rotates integrally with the rear receiving body 28. The lock plate 38 is provided so as to be engageable with the cam plate 31 and elastically biased toward the engagement side when the rear receiving body 28 is in the blocking posture B1, and the locking projection 38a is provided in the locking cutout 31a. When the lock plate 38 is engaged with the cam plate 31, the rear receiving body 28 is locked in the blocking posture B1.

A projection 39a is also formed on the unlocking rotary plate 39, and is pivotally mounted so as to be swingable around the axis L2 of the rotary horizontal shaft 37 in a state parallel to the rotary horizontal shaft 37. The connecting rod 49 attached to the aligned rotating body 48 is
Rotation plate 39 for unlocking in a state of penetrating lock plate 38
And the protruding portion 39a of the unlocking rotating plate 39 and the locking protruding portion 38a of the lock plate 38 are connected to each other.
6 are provided so as to be in the same phase around the axis L2.

The sprocket 32 is provided with a cam portion 41 which integrally rotates inside the sprocket 32. The cam portion 41 has a rotation releasing plate 39 for unlocking when the rear receiving body 28 is in the blocking posture B1. Abutment surface 41 with which the protrusion 39a of the abutment abuts
a is formed. When the sprocket 32 rotates forward by the operation of the rear catching body electric motor 36 on the advancing side, the contact surface 41a guides the protrusion 39a of the unlocking rotating plate 39 to the outside in the radial direction of the axis L2. In the initial rotation of the forward rotation of the sprocket 32, the protrusion 39a is pressed outward in the radial direction of the axis L2 to cam the protrusion 39a of the unlocking rotation plate 39. It is configured to be separated from the contact surface 41a of the portion 41.

An arcuate engagement groove 41b is formed in the cam portion 41 around the axis L1 of the fixed horizontal shaft 30, and the sprocket 32 cams by loosely fitting the connecting pin 33 in the engagement groove 41b. When the rear receiving body 28 is connected to the plate 31 and is in the blocking posture B1 as shown in (a) of FIG. 11, and
As shown in FIG. 12B, when the rear receiving body 28 is in the allowable posture B2, the connecting pin 33 moves to the end of the engaging groove 41b. And sprocket 3
In the initial rotation of the forward rotation, the connecting pin 33 moves in the engagement groove 41b to rotate the cam plate 31 in a state in which relative rotation is allowed.

As described above, the sprocket 32 is provided with the cam portion 41 for pressing the lock plate 38 to the disengagement side for disengaging the lock plate 38 from the cam plate 31 by the initial rotation of the forward rotation, and
In the initial rotation of the forward rotation, the cam plate 31 is connected to rotate the cam plate 31 while allowing relative rotation.

Incidentally, as shown in FIG. 5, the portion of the motor-side sprocket 34, the electric motor 36 for the rear receiving body, and the like protruding above the left rail member 21 provided on the lifting table 1 is covered by a cover B. The operation lever 42 is extended upward in a state of penetrating an opening formed in the left rail member 21.

As described above, the horizontal left end portion side of the lift 1 is
The lock mechanism K, the electric motor 36 for the rear receiving body, the sprocket 32, etc. are arranged, and the electric motor 3 for the rear receiving body is provided.
6 causes the lock mechanism K to be unlocked by the allowable operation to rotate the rear receiving body 28 to the allowable posture B2, and the blocking side operation to rotate the rear receiving body 28 to the blocking posture B1 and the lock mechanism K. The rear receiving body 28 and the lock mechanism K are linked with each other so as to stop the lock releasing operation.

That is, as shown in FIG.
When the rear receiving body 28 is switched to the blocking posture B1, the forward rotation of the sprocket 32 is performed by the allowance operation of the rear receiving body electric motor 36, and the sprocket 32 is initially rotated during the forward rotation. Is
The connecting pin 33 moves in the engagement groove 41b, and only the sprocket 32 is rotated forward. In the initial rotation of the forward rotation of the sprocket 32, the unlocking rotating plate 3
By pressing the contact surface 41a of the cam portion 41 against the projection portion 39a of FIG. 9, the rotating unlocking plate 39 and the lock plate 38 are integrally rotated as shown in FIG. 11B.
The locking protrusion 38a of the lock plate 38 is disengaged from the locking notch 31a of the cam plate 31, and the lock mechanism K is unlocked. Then, when the lock mechanism K is unlocked, the rear receiving body 28 rotates to the allowable posture B2 side by its own weight as shown in (a) of FIG. 12, and the rotation causes the connecting pin 33 to move in the engaging groove 41b. Then, by the forward rotation of the sprocket 32 and the rotation of the rear receiving body 28 toward the allowable posture B2 side due to its own weight, the rear receiving body 28 is switched to the allowable posture B2 as shown in (b) of FIG. To be

Further, with the rear receiving body 28 switched to the allowable posture B2, the rear receiving body electric motor 36
When the sprocket 32 is rotated backward by the blocking side operation, the connecting pin 33 is pressed at the end of the engagement groove 41b, and the sprocket 32 and the cam plate 31 are integrated as shown in FIG. Then, the rear receiving body 28 is rotated to the blocking posture B1. And (a) of FIG.
As shown in FIG. 5, when the rear receiving body 28 is in the blocking posture B1, the elastic force of the coil spring 40 causes the locking projection 38a to engage with the locking notch 31a to automatically lock the projection 39a. The contact surface 41a is contacted. In the backward rotation of the sprocket 32,
Since the locking projection 38a of the lock plate 38 is guided by the outer peripheral portion of the cam plate 31, and the projection 39a of the unlocking rotating plate 39 is also guided by the outer peripheral portion of the cam portion 41. Since the lock plate 38 is not pushed away from the cam plate 31, the unlocking operation of the lock mechanism K is stopped.

When the rear receiving body 28 cannot be electrically operated to rotate due to a failure of the rear receiving body electric motor 36, the blocking posture B1 and the allowable posture B2 of the rear receiving body 28 are manually operated. It is configured to be able to perform a rotating operation with.

That is, as shown in FIG.
When the rear receiving body 28 is locked in the blocking posture B1, by swinging the operation lever 42 forward, as shown in FIG.
a is disengaged from the lock notch 31a, the lock mechanism K is unlocked, and in the unlocked state, the rear catch 28 is manually rotated to the allowable posture B2, and The body 28 can be switched to the allowable posture B2. Further, when the rear receiving body 28 is switched to the allowable posture B2, the rear receiving body 28 is manually rotated to the blocking posture B1. By the force, the locking projection 38a is engaged with the locking notch 31a, and the locking operation is automatically performed. When the rear receiving body 28 is rotated by the manual operation as described above, the cam plate 31 is rotated by the rotation of the rear receiving body 28 contrary to the electric operation, and the cam plate 3 is operated by the action of the connecting pin 33.
With the rotation of 1, the sprocket 32 is rotated.

Incidentally, in addition to the blocking posture B1 and the permissible posture B2, the rear receiving body 28, as shown in (b) of FIG.
3 is also configured so that the posture can be changed. That is, FIG.
As shown in FIG. 14A, when the rear receiving body 28 is locked in the blocking posture B1, as shown in FIG. 14A, the operation lever 42 is swung forward. , The locking projection 38a is disengaged from the locking notch 31a, the lock mechanism K is unlocked, and in the unlocked state, the rear receiving body 28 is manually swung forward and downward. By doing
As shown in FIG. 4B, the rear receiving body 28 can be switched to the storage posture B3.

Further, as shown in FIG. 20C, when the lifting platform 1 is in the storage position A3, the rear receiving body 28 can be rotated only between the blocking posture B1 and the storage posture B3. As shown in (a) and (b) of FIG. 20, when the lifting platform 1 is in the lowered position A1 and the raised position A2, the storage posture B3, the blocking posture B1, and the allowable posture B are set.
The rear receiving body 28 is configured to be rotatable in any of the two postures. That is, on both sides of the locking notch 31a of the cam plate 31, there are provided a large protrusion 31b that largely protrudes outward from the axis L1 and a small protrusion 31c that has a smaller protrusion amount than the large protrusion 31b. The lock plate 38 is brought into contact with the not-shown restricting frame provided on the elevating frame 2 by the restricting portion 38b of the lock plate 38 when the elevating table 1 is at the retracted position A3 which is slid forward. , The operation amount of the operation lever 42 is restricted, and the blocking posture B1 and the storage posture B are set.
The rear receiving body 28 is configured to be rotatable only between the rear receiving body 28 and the rear receiving body 28.

When the lift base 1 is in the lowered position A1 or the raised position A2, the locking projection 3 of the lock plate 38 is provided.
8a is moved and operated not only from the small protrusion 31c of the cam plate 31 but also from the large protrusion 31bc, so that the rear receiving body 28 can be rotated to the storage posture B3 or the allowable posture B2. Is configured. However, when the lift base 1 is at the storage position A3, the operation amount of the operation lever 42 is restricted by the contact of the restricting portion 38b with the restricting frame provided on the elevating frame 2, and the lock projection 38a of the lock plate 38 is restricted. However, the position of the cam plate 31 is restricted to a position where the cam plate 31 is separated from the small protrusion 31c, but is not separated from the large protrusion 31b. In this state, the rear receiving body 28 can be rotated to the storage posture B3, but the rotation operation to the allowable posture B2 is prevented by the abutment of the large protrusion 31b to the locking protrusion 38a, and the lifting platform is lifted. When 1 is in the storage posture B3, the rear receiving body 28 is configured to be rotatable only between the blocking posture B1 and the storage posture B3.

Each member disposed on the left side of the rear receiving body 28 will be described below with reference to FIGS. By the way, FIG. 15 is a side view when the rear receiving body 28 is in the blocking posture B1, and FIG.
8 is a side view when the allowable posture B2 is shown, and FIG. 17 is a side view when the rear receiving body 28 is in the stored posture B3,
FIG. 18 is a rear side view with a part cut away, and FIG.
It is an exploded perspective view of each member.

On the right side of the rear receiving body 28, that is, on the right end side of the lift 1, the damper 43 for damping the rotational speed when the rear receiving body 28 rotates toward the allowable posture B2 side due to its own weight. Is provided.

On the outer side of the rear receiving body bracket 28a, a damper rotating body 44 is provided around the fixed horizontal shaft 30,
That is, the fixed horizontal shaft 30 is pivotally mounted about the axis L1 of the fixed horizontal shaft 30, and the damper 43 is fixed to the fixed horizontal shaft 3 of the damper rotating body 44.
It is provided so as to expand and contract by swinging around the axis L1 of 0. The damper rotating body 44 is connected to the rear receiving body bracket 28a in a state where the engagement pin 45 is fitted in the arcuate notch 44a around the axis L1 of the fixed horizontal shaft 30. Then, as shown in FIG. 15, when the rear receiving body 28 is in the blocking posture B1, the allowable posture B
2 side, that is, when the rear receiving body 28 rotates counterclockwise in the drawing, the dowel pin 45 presses the end portion of the notch 44a, so that the rear receiving body 28 integrally swings the damper rotating body 44. As shown in FIG. 16, the rear receiving body 28 is allowed to move to the allowable posture B2 in a state in which the rotational speed of the rear receiving body 28 is attenuated by the contracting action of the damper 43.
Rotate to. Further, as shown in FIG. 15, when the rear receiving body 28 is in the blocking posture B1, it is in the storage posture B3.
When the rear receiving body 28 is rotated to the side, that is, the clockwise direction in the figure, the rear receiving body 28 allows relative rotation with the damper rotating body 44 by moving the engagement pin 45 in the notch 44a. , The rear receiving body 28 is rotated to the storage posture B3 without the damper 43 acting.

That is, the damper 43 is used as the rear receiving member 2.
The rotational speed is attenuated only when 8 rotates from the blocking posture B1 to the allowable posture B2, and when the rear receiving body 28 rotates from the blocking posture B1 to the storage posture B3, the rotational speed is not damped. ing.

The cylinder electric pump 6 for supplying hydraulic oil to the pair of left and right hydraulic cylinders 5 is located on the left side of the left parallel four-series link mechanism 4 and mounted on the vehicle V, and is used as a cylinder electric pump. 6 and the left and right hydraulic cylinders 5 are connected by piping, and various switching valves and relief valves are provided in the piping system, and the cylinder electric pump 6 and auxiliary equipment are also covered by a cover 46. Is covered.

The vehicle elevating device having such a configuration is configured so that the operations of the hydraulic cylinder 5, the electric motor 19 for sliding, the electric motor 36 for the rear receiving body, etc. are all controlled by a control device (not shown). Therefore, the control device is provided with a pendant type operation tool 47 configured to input signals from various sensors (not shown) and inputting an operation signal to the control device.

The operation of the vehicle lifting device by the control device will be described. First, the case of transferring the wheelchair C from the inside of the vehicle V onto the ground G will be described. As shown in (c) of FIG. 20, the lift table 1 is placed on the lift table 1 in the storage position A3. When the wheelchair C is placed, the rear opening / closing door D is opened, and the lowering button of the pendant type operation tool 47 is pressed, the slide electric motor 19 is rotationally driven, and this pinion 18 is rotated as the pinion 18 rotates. By the action of the rack 24, the lifting table 1 is pulled toward the holding frame 2 side, the electric motor 19 for sliding is stopped based on a signal from a sensor (not shown), and the lifting table 1 is held by the holding frame 2. Stop in the state.

That is, the slide idler roller 23 provided on the lift table 1 rolls on the rail 25 and is attracted to the elevator frame 2 side, and the slide idler roller 17 provided on the elevator frame 2 is The guide idler roller 20 is fitted in the left and right rail members 21 and 22 of the lift table 1 and the guide idler roller 20 is fitted in the right rail member 22, and the slide idler roller 17 provided in the lifter frame 2 is attached. As shown in (b) of FIG. 20, the elevating table 1 reaches the elevated position A2 held by the elevating frame 2, and the front receiving body 27 that has been in the stored posture rotates upward to a standing posture. Can be switched.

After that, the cylinder electric pump 6 is rotationally driven to supply hydraulic oil to the pair of left and right hydraulic cylinders 5, both hydraulic cylinders 5 extend, and the parallel four-link mechanism 4 becomes vertical. At this point, both hydraulic cylinders 5 are shortened, and by the action of the parallel four-link mechanism 4, the elevating table 1 held by the elevating frame 2 moves downward while moving rearward in a substantially horizontal posture. Lower limit dog 15b of the dog plate 15
When the lower limit sensor 16b comes into contact with the lower limit sensor 16, the lowering of the holding frame 2 by the hydraulic cylinder 5 is stopped. In the stopped state, as shown in FIG. The lifting platform 1 held by the frame 2 is substantially parallel to the ground G and is in contact with the ground G.

Next, when the opening button for the rear receiving body of the pendant type operation tool 47 is pushed, the electric motor 36 for the rear receiving body operates on the permissible side, and the forward rotation of the sprocket 32 locks the lock mechanism K. The releasing operation is performed to rotate the rear receiving body 28 to the allowable posture B2, and the free end portion of the rear receiving body 28 is grounded. That is, in the forward rotation of the sprocket 32, in the initial rotation,
Only the sprocket 32 is rotated forward by the movement of the connecting pin 33 in the engaging groove 41b, and the cam plate 41 pushes the lock plate 38 to the disengagement side to disengage the lock plate K, thereby unlocking the lock mechanism K. In the subsequent operation, the sprocket 32 and the cam plate 3 are rotated by the forward rotation of the sprocket 32 and the weight of the rear receiving body 28.
1 is integrally rotated forward and the rear receiving body 28 is rotationally operated to the allowable posture B2.

After the free end of the rear receiving body 28 is grounded, the caregiver pulls it backward or moves the wheelchair C by himself to get on the ground G, and the transfer to the ground G is completed. To do. Even when the lift table 1 is being lowered, the lift frame 2 and the lift table 1 can be stopped at desired positions by canceling the push operation of the lower button of the pendant type operation tool 47. Therefore, for example, the wheelchair C can be lowered on a table higher than the ground G.

Next, the case of transferring the wheelchair C from the ground G to the inside of the vehicle V will be described. First, the wheelchair C is mounted on the lift base 1 and the lift button of the pendant type operation tool 41 is pressed. Then, the electric motor 36 for the rear receiving body
Is operated on the blocking side, and by the backward rotation of the sprocket 32, the rear receiving body 28 is rotated to the blocking posture B1 and the unlocking operation of the lock mechanism K is stopped. That is,
In the forward rotation of the sprocket 32, the engagement groove 4
By pressing the connecting pin 33 by the end portion of 1b, the sprocket 32 and the cam plate 31 are integrally rotated forward to rotate the rear receiving body 28 to the allowable posture B2 and lock the lock plate 38. The protrusion 38a is guided by the outer peripheral portion of the cam plate 31, and the unlocking rotating plate 3 is used.
The protruding portion 39a of 9 is also guided by the outer peripheral portion of the cam portion 41,
The lock plate 38 is not pressed from the cam plate 31 to the detaching side, and the unlocking operation of the lock mechanism K is stopped.

Thereafter, the rear receiving body 28 is in the blocking posture B1.
Then, due to the elastic force of the coil spring 40, the locking projection 38a is engaged with the locking notch 31a and the lock operation is automatically performed. The hydraulic oil from the pump 6 is supplied to the pair of left and right hydraulic cylinders 5 so that both hydraulic cylinders 5
Is shortened, and the lifting platform 1 moves forward while rising in a substantially horizontal posture, and when the parallel four-link mechanism 4 becomes vertical, both hydraulic cylinders 5 extend and the upper limit of the dog plate 15 increases. When the dog 15a comes into contact with the upper limit detection sensor 16a, the elevating frame 2 reaches the ascending position A2, the elevating of the elevating table 1 by the hydraulic cylinder 5 is stopped, and the sliding electric motor 19 is lowered. It is driven to rotate in a direction opposite to the above, the lift 1 is moved to the original storage position A3, and the front receiving body 27, which was in the standing posture, is rotated forward to be switched to the storage posture. Based on the detection of, the operation of the electric motor 19 for slide is stopped, and the transfer into the vehicle V is completed.

Then, after the wheelchair C is transferred from the ground G into the vehicle V, the operating lever 42 swings forward while the elevator platform 1 is in the retracted position A3, whereby the locking projection is formed. 38a is disengaged from the lock notch 31a,
When the lock mechanism K is unlocked and the lock is released, the rear receiving body 28 is stored in the retracted posture B3.
Rotate to.

Incidentally, the wheelchair C is moved from the inside of the vehicle V to the ground G.
When the rear receiving body 28 in the storage posture B3 is manually switched to the blocking posture B1 when it is transferred to the upper position, the rear receiving body 28 is manually moved to the blocking posture B1 side without operating the operation lever 42. When the rear receiving body 28 is moved to the blocking posture B1 by being rocked by an operation, the locking projection 38
a engages with the lock notch 31a of the cam plate 31, and the rear receiving body 28 is automatically held in the blocking posture B1.

[Other Embodiments] (1) In the above embodiment, the pair of left and right parallel quadruple link mechanisms 4 are connected to the base frame 7, and the pair of left and right parallel quadruple link mechanisms 4 are respectively provided with the lifting arms 3. Although the parallel four-link mechanism 4 and the elevating arm 3 are provided on only one of the left and right sides, the elevating table 1 can be cantilevered up and down. Also, the lifting arm 3
Although the holding frame 2 is attached to the lower end of the lifting frame 1 and the lifting frame 1 is held by the holding frame 2, the lifting platform 1 is directly attached to the lower end of the lifting arm 3 and the lifting frame 1 and the vehicle V are The wheelchair C is configured to be transferred to and from the floor surface F, and
It is also possible to fold the lift 1 and store it in the vehicle V.

(2) In the above embodiment, the parallel quadruple link mechanism 4 is used to move up and down the elevating frame 2 and the pedestal 1. However, another quadruple link mechanism is used to move up and down. 21 to 24 show an example thereof. It should be noted that, in describing this other embodiment, mainly in order to avoid a duplicate description, etc., only a part different from the previous embodiment will be briefly described. The vehicle lifting device includes a pair of left and right guide frames 50 fixed to a floor surface F of a vehicle V, and a pair of left and right movable frames 51 configured to be movable in the front-rear direction along the guide frames 50. Prepared, each movable frame 5
1 and the elevating frame 2 are connected by a linear upper link 52 and a lower link 53 having a special shape, and the movable frame 51, the elevating frame 2, and the upper and lower links 52, 53 respectively provide a four-link mechanism 54. The piston rod 55 of the double-acting hydraulic cylinder 5 is connected to each movable frame 51.

When the pair of left and right double-acting hydraulic cylinders 5 are expanded and contracted, for example, when the elevating frame 2 and the elevating table 1 are raised from the lowered state shown in FIG. 22, each double-acting hydraulic cylinder 5 is moved. To shorten. Then, each movable frame 5
1 is moved to the front side of the vehicle V, the upper and lower links 52, 53 are pulled forward accordingly, and the lower surface of the lower link 53 is guided by the guide wheel 56 provided on the bumper of the vehicle V, and An idle wheel 57 provided on the side of the lower link 53 rides on a guide 58 in the guide frame 50, and ascends in a state in which the elevating frame 2 and the elevating table 1 maintain a horizontal posture as shown in FIG. After that, by further shortening the double-acting hydraulic cylinder 5, the elevating frame 2 is drawn into the vehicle V as shown in FIG. 24, and then the elevating table 1 is slide-operated. It will be lowered by the movement of.

In this alternative embodiment, the pair of left and right movable frames 51 may be connected to each other by using a connecting member to be integrated with each other, and the piston rod 55 of the double-acting hydraulic cylinder 5 may be connected to the connecting member. In that case, in this case, the elevating frame 2 is moved by the expansion and contraction operation of one double-acting hydraulic cylinder 5.
It is possible to raise and lower the platform 1 and the platform 1.

(3) In the above embodiment, an example in which a hydraulic cylinder 5 is used as a means for driving and operating the parallel four-link mechanism 4 is shown. However, in addition to the cylinder, for example, a screw rod and a nut member may be used. It is also possible to drive and operate the parallel quadruple link mechanism 4 by driving the screw rod or nut member in forward and reverse rotation with an electric motor. Furthermore, the screw rod or nut member described above can be manually operated. It is also possible to drive the parallel quadruple link mechanism 4 by driving it in forward / reverse rotation with.

(4) In the above embodiment, the rear receiving body electric motor 36 performs the unlocking operation of the lock mechanism K by the permitting operation to rotate the rear receiving body 28 to the permitting posture B2, and the blocking side operation. , A sprocket 32 provided with a cam portion 41 for linking the rear receiving body 28 and the lock mechanism K so as to rotate the rear receiving body 28 to the blocking posture B1 and stop the unlocking operation of the lock mechanism K, Cam plate 31 and rotation-releasing plate 39 for unlocking
For example, instead of the sprocket 32 having the cam portion 41, the cam plate 31, and the unlocking rotating plate 39, a link mechanism or the like is provided, so that the rear receiving body electric motor is provided. 36 for receiving the rear part 28
It is also possible to link with the lock mechanism K, and the configuration for linking the rear receiving body electric motor 36 with the rear receiving body 28 and the lock mechanism K can be appropriately changed.

(5) In the above embodiment, the rear receiving body 2
Although the damper 43 that damps the rotation speed when the rear receiving body 28 rotates toward the allowable posture B2 side by its own weight is provided, the damper 43 may not be provided.

(6) In the above embodiment, the lock mechanism K and the rear receiving member electric motor 3 are provided on the left end side of the lift 1.
6 and the sprocket 32 are arranged, and the damper 43 is arranged on the right end side of the lifting table 1, but the positions where these members are arranged can be changed as appropriate. It is also possible to centrally arrange the lock mechanism K, the electric motor 36 for the rear receiving body, the sprocket 32, and the damper 43 on the one end side.

(7) In the above embodiment, the wagon vehicle is shown as an example of the vehicle V, and the elevating device is attached to the rear portion of the wagon vehicle. It can be applied to various vehicles such as passenger cars, buses and trucks.
The present invention is not limited to the rear part of the vehicle V, but may be attached to an intermediate part of the vehicle V in the front-rear direction or the like, and the lifting platform 1 may be configured to be lowered to the lateral lateral outside of the vehicle V.

[Brief description of drawings]

FIG. 1 is a perspective view of a lifting device for a vehicle.

FIG. 2 is a plan view of a vehicle lifting device.

FIG. 3 is a perspective view of a parallel four-link mechanism.

FIG. 4 is a perspective view of the lifting frame and the lifting platform.

FIG. 5 is a side view of a main part of a vehicle lifting device.

[Figure 6] Rear elevation view of the lifting frame and lifting platform

FIG. 7 is a side view of the main part of the vehicle lifting device.

FIG. 8 is a partially cutaway rear view of the main part of the vehicle lifting device.

FIG. 9 is an exploded perspective view of a main part of a vehicle lifting device.

FIG. 10 is an exploded perspective view of a main part of a vehicle lifting device.

FIG. 11 is an exploded side view of the main part of the vehicle lifting device.

FIG. 12 is an exploded side view of a main part of a vehicle lifting device.

FIG. 13 is an exploded side view of a main part of a vehicle lifting device.

FIG. 14 is an exploded side view of a main part of a vehicle lifting device.

FIG. 15 is a side view of the main part of the vehicle lifting device.

FIG. 16 is a side view of a main part of a vehicle lifting device.

FIG. 17 is a side view of the main part of the vehicle lifting device.

FIG. 18 is a partially cutaway rear view of the main part of the vehicle lifting device.

FIG. 19 is an exploded perspective view of a main part of a vehicle lifting device.

FIG. 20 is a side view showing the movement of the vehicle lifting device.

FIG. 21 is a perspective view of a vehicle lifting device according to another embodiment.

FIG. 22 is a side view showing the movements of the lifting frame and the lifting platform according to another embodiment.

FIG. 23 is a side view showing the movements of the lifting frame and the lifting platform according to another embodiment.

FIG. 24 is a side view showing the movement of the lifting frame and the lifting platform according to another embodiment.

[Explanation of symbols]

1 Placement section 5 Lifting operation means 28 Receiving body 31 Rotating body 32 Drive revolving body 36 Posture switching actuator 38 Locking tool 41 Cam 43 Damper C Placed object K lock mechanism

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Nobuo Sei             25 Araco, Kamifujiike, Yoshiwara-cho, Toyota-shi, Aichi             Within the corporation (72) Inventor Kiyoshi Shimizu             1225 Nakazaiji, Hino-cho, Gamo-gun, Shiga Prefecture             Daifuku Shiga Works (72) Inventor Hoshi Hagisu             1225 Nakazaiji, Hino-cho, Gamo-gun, Shiga Prefecture             Daifuku Shiga Works

Claims (4)

[Claims] 1. A lifting / lowering operation of a mounting portion of a mounted object in a posture parallel or substantially parallel to a descending position on or near the ground and an ascending position at the same height or substantially the same height as the floor surface of a vehicle. A lifting operation means, a blocking posture that is provided in the placement unit and that prevents the placement target from moving outward from the placement unit, and the placement position of the placement unit from the placement unit. A receiving body that is manually rotatable in an allowable posture that allows it to move outward, and a receiving body that is biased toward a lock side that locks the receiving body in the blocking posture to move the receiving body to the blocking posture. In this case, the vehicle lifting device is provided with a lock mechanism of a manually operated lock mechanism capable of automatically performing a lock operation and a lock release operation by a manual operation, and an allowable side operation of switching the receiving body to the allowable posture, And the receiving body An actuator for posture switching for performing a blocking side operation for switching to a blocking posture is provided, and the actuator unlocks the lock mechanism by the permitting operation to rotate the receiving body to the permitting posture, thereby performing the blocking. A vehicle elevating device linked to the receiving body and the lock mechanism so as to rotate the receiving body to the blocking posture and stop the unlocking operation of the lock mechanism by the side operation. 2. The lock mechanism is configured to engage and disengage a lock tool for engaging and disengaging a rotating body that rotates integrally with the receiving body with the rotating body when the receiving body is in the blocking posture. Is configured to be elastically urged to lock the receiving body in the blocking posture by the engagement of the locking tool with the rotating body. A drive rotating body that is operated to rotate forward and backward about the same axis as the rotating body, and the drive rotating body separates the locking tool from the rotating body by the initial rotation of the forward rotation. A cam portion for pressing the detaching side is provided, and the rotating body is connected to rotate the rotating body in a state where relative rotation is allowed in the initial rotation of the forward rotation. The vehicle elevating device according to claim 1, wherein a chute is linked to the receiving body and the lock mechanism. 3. The elevating device for a vehicle according to claim 2, further comprising a damper that damps a rotation speed of the receiving body when the receiving body rotates toward the allowable posture side due to its own weight. 4. The lock mechanism, the actuator, and the drive rotating body are arranged on the side of one lateral end of the placing section, and the damper is provided on the side of the other lateral end of the placing section. The vehicle elevating / lowering device according to claim 3, further comprising: