JPH07285368A - Longitudinal shifting device for platform of lifting device for vehicle - Google Patents

Abstract

PURPOSE:To store a platform into a vehicle in the horizontal state used for lifting when a gate frame is stored by longitudinally movably providing the platform on side frames arranged at the tip of the gate frame. CONSTITUTION:Support plates 4a, 4b are arranged at a required interval on the inside floor surface 3 of the entrance 2 of the car room 1 of a vehicle, base ends of lift links 6a, 6b are pivotally supported 5a, 5b on the support plates 4a, 4b, and their tips are pivotally connected 8a, 8b to the upper section of a gate frame 7. The lift links 6a, 6b are rockingly driven by the actions of the hydraulic cylinders provided on the support plates 4a, 4b via levers. Side frames 13 are integrally fitted on the lower inside of the gate frame 13, support shafts 14, 15 are protruded apart longitudinally on the front lower inside faces of the side frames 13, and a platform 18 is longitudinally movably supported on the support shafts 14, 15 via support rollers 16, 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a platform forward / backward transfer device for a vehicle elevator.

[0002]

2. Description of the Related Art Conventionally, a platform in a link arm type vehicle elevating / lowering device protrudes outside the vehicle compartment when it is stored, and thus it is stored in the vehicle compartment by standing it upright.

[0003]

As described in the prior art, since the platform of the link arm type vehicle lifting device is stored in the vehicle compartment by standing up, the rear view and passage are closed, There was a problem in terms of driving and safety in getting out of the car. Therefore, the present invention intends to move the platform horizontally and store it in the vehicle compartment without standing up.

[0004]

[Means for Solving the Problems] Elevating links are installed inside a passenger compartment of a vehicle, the base ends of which are pivotally supported and are arranged on the left and right, and the upper end of a gate frame is pivotally connected to each tip. The support shaft is rotatably supported by projecting the support shaft in the lower inner part of each gate frame, and the rail frames provided on both side edges of the platform are fitted to the support roller, and the support frame is mounted on the inner surface of the gate frame. An endless chain in which rotary shafts are provided so as to be separated from each other in the front and rear direction, chain gears are attached to the front and rear rotary shafts, respectively, and a rotary drive source is associated with at least one of the rotary shafts, and the rotary drive source engages the chain gear And a platform connected to the endless chain are moved forward or backward, and are extended or retracted with respect to the gate frame. In the before and after the transfer device.

Inside the entrance / exit of the passenger compartment of a vehicle, elevator links corresponding to the front and rear of the floor at predetermined intervals are pivotally supported at their base ends, and are arranged at the left and right, and at the tops of the gate frames. Is attached to the inside of the lower part of each gate frame,
The side frames are attached integrally, the front and rear are spaced apart from each other on the inner surface of each side frame, the support shaft is projected, and the support rollers are rotatably supported by the front and rear support shafts, and the support rollers are provided on both side edges of the platform. The rail frame is mounted, the platform is movably supported in the front and rear direction, and the rotary shaft is projected on the inner surface of the side frame with the front and rear separated.
Chain gears are attached to the front and rear rotary shafts, respectively, and a rotary drive source is associated with at least one of the rotary shafts. From this rotary drive source, the endless chain engaged with the chain gear is moved, and the platform connected to the endless chain is forwarded. Alternatively, it may be a forward / backward transfer device for a platform in a vehicle elevating device, which is characterized in that it is moved backward and is fed out or stored in a gate frame.

It is also possible to extend a lever at one base end of the elevating link corresponding to the front and rear and to connect the tip to the tip of a piston rod fitted in a hydraulic cylinder to perform an elevating operation.

[0007]

Since the present invention is constructed as described above, the platform is connected to the endless chain mounted on the chain gear and is pulled by the endless chain to move forward or backward to operate. Is exceptionally smooth. In particular, when the endless chains are arranged on the left and right sides of the platform, the left and right sides are balanced and operate smoothly without difficulty.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings which are an example of an embodiment.
Support plates 4a, 4b facing each other at a required interval are arranged on the left and right, and support shafts 5a, 5 supported on the respective support plates 4a, 4b.
b, the base ends of the lifting links 6a, 6b are pivotally supported, and the tips of the lifting links 6a, 6b are pivotally connected to the upper portions of the gate frames 7, 7 by supporting shafts 8a, 8b.
A lever 9 is extended to the base end of a, and its tip is connected by a spindle 12 to the tip of a piston rod 11 inserted into a hydraulic cylinder 10 whose base ends are attached to the support plates 4a and 4b.

The side frames 13 and 13 are integrally attached to the inside of the lower portions of the gate frames 7 and 7, and the support shafts 14 and 15 are spaced apart from the front and rear sides of the inner surfaces of the front lower half of the side frames 13 and 13 to project. Bearing rollers 1 on the support shafts 14 and 15
6 and 17 are rotatably supported, and the support rollers 16 and 17
Rail frames 19 and 20 provided on both side edges of the platform 18 are fitted to the platform 18, and the platform 18 is supported movably back and forth.

Rotating shafts 21 and 22 are provided in front and rear of the upper half of the inner surfaces of the side frames 13 and 13, and the rotating shafts 21 and 2 are provided.
2, chain gears 23 and 24 are attached respectively, and at least one rotary shaft 21 or 22 thereof is associated with a rotary drive source (not shown, for example, a motor), and the rotary shaft 21 or 22 is rotated by the rotary drive source. By the rotation, the chain 25 engaged with the chain gears 23, 24 is moved, and the movement of the chain 25 is transmitted to the platform 18 by the connecting metal fitting 26 and pulled by the chain, so that the supporting rollers 16, 1,
On the platform 7, the platform 18 moves forward or backward.

[0011]

According to the device of the present invention, the platform is provided on the side frame arranged at the tip of the gate frame so as to move forward or backward, so that the platform stands up when the gate frame is stored in the vehicle. Since it can be accommodated in the vehicle in a horizontal state for lifting and lowering, the driver, especially the driver, can perform safe driving without impairing the rear visual field, and the rear passage is closed. Without, the occupant can move back and forth on and off the platform, as appropriate.

Further, since the platform is connected to an endless chain that is hung on the chain gear,
The operation of moving forward or backward by being pulled by the endless chain is smooth. Especially when the endless chains are arranged on the left and right sides of the platform, the left and right sides are balanced and operate smoothly without any difficulty.

[Brief description of drawings]

FIG. 1 is an explanatory side view of a platform front-rear transfer device in a vehicle lifting device according to the present invention in a state in which the entire device is lowered to a road surface.

FIG. 2 is an overall perspective view including a mounting portion of the same vehicle.

FIG. 3 is a plan view showing a state where the platform is likewise raised and stored in the vehicle.

[Explanation of symbols]

 1 passenger compartment 2 entrance / exit 3 floor 4a supporting plate 4b supporting plate 5a supporting shaft 5b supporting shaft 6a lifting link 6b lifting link 7 gate frame 8a supporting shaft 8b supporting shaft 9 lever 10 hydraulic cylinder 11 piston rod 12 supporting shaft 13 side frame 14 support shaft 15 support shaft 16 support roller 17 support roller 18 platform 19 rail frame 20 rail frame 21 rotary shaft 22 rotary shaft 23 chain gear 24 chain gear 25 chain 26 connection fitting

Claims (3)

[Claims] 1. An elevating link is provided inside a doorway of a vehicle compartment of a vehicle, the base ends of which are pivotally supported and arranged on the left and right, and the upper end of a gate frame is pivotally connected to each of the tip ends of each gate frame. The supporting shaft is rotatably supported by protruding the supporting shaft to the inside of the lower part in the front and rear direction, and the rail frames provided on both side edges of the platform are mounted on the supporting roller, and the rotating shaft is moved back and forth on the inner surface of the gate frame. , The chain gears are attached to the front and rear rotary shafts, respectively, and the rotary drive source is associated with at least one of the rotary shafts, and the endless chain engaged with the chain gear is moved from the rotary drive source. A front-rear transfer device for a platform in a vehicle lifting device, characterized in that a platform connected to an endless chain is moved forward or backward and is extended or retracted with respect to a gate frame. 2. Elevating links corresponding to the front and rear at a predetermined interval on the floor surface inside the entrance and exit of the passenger compartment of the vehicle are arranged laterally with each base end pivotally supported, and at each end, a gate frame is provided. The upper parts are connected by shafts, the side frames are integrally attached to the inside of the lower part of each gate frame, the support shaft is projected forward and backward on the inner side surface of each side frame, and the support rollers are attached to the front and rear support shafts. It is rotatably supported, and rail frames provided on both side edges of the platform are fitted to this support roller, the platform is movably supported forward and backward, and the rotary shaft is projected forward and backward on the inner surface of the side frame. A chain gear is attached to each of the front and rear rotary shafts, a rotary drive source is associated with at least one of the rotary shafts, and the endless chain engaged with the chain gear is moved from this rotary drive source to connect with the endless chain. A platform forward / backward transfer device in a vehicle lifting device, characterized in that the platform is moved forward or backward and is fed or stored with respect to the gate frame. 3. A lever is provided at one base end of a lifting link corresponding to the front and rear, and the leading end is connected to the leading end of a piston rod inserted into a hydraulic cylinder to perform lifting operation. The front-back transportation apparatus of the platform in the lifting device for vehicles of Claim 1 or Claim 2.