JP2534289Y2 - Platform lift - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a platform lift, and more particularly, to a platform lift comprising an X-type link arm which is supported by a table at its upper end and is operated by a hydraulic cylinder.

[0002]

2. Description of the Related Art Conventionally, a platform lift for lifting a vehicle for inspection, maintenance and the like is already known. However, the vehicle is further lifted on a table, and wheels and endless tracks are rotated. Car wash, inspection and maintenance of the bottom requires the operation of many jacks and is rarely performed due to danger. In other words, the car was washed, inspected, and maintained at the bottom by lifting the car with a jack placed on the floor and working under it.

[0003]

[Problem to be solved by this invention] This invention is a platform lift that can lift a vehicle lifted up by a platform lift safely on a table with a few jacks, rotate wheels and endless tracks, and perform car washing, inspection and maintenance. It is intended to provide.

[0004]

In order to achieve the above object, the present invention is directed to a platform lift comprising an X-shaped link arm which is supported by a hydraulic cylinder and is operated by a hydraulic cylinder. , An at least one bridge member movably bridged over the opening, and a hydraulic jack movably mounted on the bridge member. .

[0005]

[Action] The front and rear (or left and right) positions of the hydraulic jack are adjusted by moving the bridge member along the opening, and the left and right (or front and rear) positions are adjusted by moving the hydraulic jack itself on the bridge member. Then, a hydraulic jack is accurately applied (via an appropriate adapter) to an axle or a gear box, which is the center of weight of the vehicle, and the hydraulic jack lifts the vehicle up onto a table and is lifted up by a platform lift. A predetermined operation such as car washing, inspection and maintenance is performed on the bottom of the vehicle. Since the hydraulic jack can be accurately applied to the center of gravity of the vehicle, the vehicle can be lifted up stably and the operation can be performed safely.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a platform lift shown in the drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 1, an X-link arm 2 for supporting a table 1 of a platform lift at its upper end.
Are a pair of fixed legs 4, 4 and casters 5a, 5 respectively.
a fixed leg 4 and movable leg 5
And a pair of hydraulic cylinders 3, 3 mounted between the shaft 6 and the connecting plate 7 connecting the fixed legs 4, 4. In FIG. 1, a chain line indicates a state where the pistons 3a, 3a of the hydraulic cylinders 3, 3 are extended, that is, a state where the platform lift is lifted up, and a solid line indicates the pistons 3a, 3 of the hydraulic cylinders 3, 3.
a indicates a contracted state, that is, a state in which the platform lift is lowered.

FIG. 2 is a perspective view of the platform lift in the state shown by the solid line in FIG. 1, and the platform lift is mounted on casters 5a, 5a attached to the moving legs 5, 5.
And the casters 9, 9 removably (fittingly) attached to the mounting portions 8, 8, which are fixed to the fixing legs 4, 4 with the fastening bolts 10, respectively. In addition, 11 and 11 are support members of the table 1 fixed to the connecting plate 7.

An opening 12 is formed in the center of the table 1, and hydraulic jacks 15, 15 are mounted on the opening 12 at the opening 12. The hydraulic jacks 15 are provided with operating handles 16. The table 1 has a vehicle stop 14, 14 and a handle 13 at one end thereof.
Is provided.

FIG. 3 shows an opening 1 formed in the table 1.
2, rail plates 17, 17 fixed by welding to the back surface of the table 1 on both sides, and an opening 1
It is shown that the bridge member 18 is placed so as to bridge the bridge 2, and the hydraulic jack 15 is movably mounted on the bridge member 18. The bridge member 18 is provided with a bolt 1 at a predetermined position.
9 can be locked to the rail plate 17 by the locking pieces 20 by fastening (FIG. 4).

A straddle portion 15a is provided below the hydraulic jack 15 to straddle the bridge member 18, and a screw hole is formed in the straddle portion 15a.
Locked in place on bridge member 18 by 1 and 21. Bolts 21, 21 and 21 as required
And the position of the hydraulic jack 15 can be moved right and left.

Now, a vehicle such as an agricultural tractor is placed on the platform lift in the state shown by the solid line in FIG. 1 (in a state where the casters 9 are removed in FIG. 2), and the state shown by the dotted line in FIG. Lift up to
Loosen the bolt 19 of the locking piece 20, move the position of the bridge member 18 in the front-rear direction (the direction of the arrow in FIG. 3) and stop at the center of gravity of the vehicle, and lock the bridge member 18 at that position with the locking piece. Then, the bolts 21, 21, and 21 are loosened, and the hydraulic jack 15 is moved in the left-right direction (the direction of the arrow in FIG. 4) to be applied to an axle or a gear box, which is the center of gravity of the vehicle, via a suitable adapter. The operation further lifts the vehicle from the table 1. After the vehicle has been lifted up, a plurality of ridge tracks can be inserted between the vehicle and the table to further stabilize the lift-up state. Then, the wheels of the vehicle and the endless track belt are rotated to perform car washing, inspection and maintenance on the bottom.

Therefore, cleaning, inspection and maintenance of the bottom of the vehicle, especially the wheels and the endless track belt, can be performed while standing.

In the above-described example, the opening formed in the center of the table is elongated in the front and rear. However, the same operation and effect can be obtained even if the opening is elongated in the left and right or a square and the bridge member is straddled in the front and rear direction. Can be played. Also, the bridge member and the hydraulic jack can be locked by means other than the bolt.

[0015]

According to the invention, an opening is formed at the center of the table supported by the upper end of the platform lift, a bridge member is movably laid over the opening, and the hydraulic jack is moved on the bridge member. Since it was mounted as possible, the position of the hydraulic jack can be accurately adjusted by moving the bridge member and the hydraulic jack, and the hydraulic jack can be accurately applied to the center of gravity of the vehicle on the platform lift, The lift of the vehicle on the platform lift by the hydraulic jack can be performed safely. Therefore, cleaning, inspection, and maintenance of the bottom of the vehicle, that is, the wheels, the endless track belt, and the like can be performed safely.

[Brief description of the drawings]

FIG. 1 is a side view of a platform lift showing an embodiment of the present invention.

FIG. 2 is a perspective view of the platform lift of FIG. 1;

FIG. 3 is a plan view of a main part of the platform lift of FIG. 1;

FIG. 4 is a side view of a main part of the platform lift of FIG. 1 with a partial cross section.

[Description of Signs] 1 Table 2 X-type link arm 3 Hydraulic cylinder 3a Piston 4 Fixed leg 5 Moving leg 5a Caster 6 Shaft 7 Connecting plate 8 Mounting member 9 Caster 12 Opening 15 Hydraulic jack 16 Handle 17 Rail plate 18 Bridge member 19, 21 bolt 20 locking piece

Claims (2)

(57) [Scope of request for utility model registration] 1. A platform lift having an X-shaped link arm operated by a hydraulic cylinder and supporting a table at its upper end, and an opening formed at a center portion of the table and movably straddled by the opening. A platform lift, comprising: at least one bridge member; and a hydraulic jack movably mounted on the bridge member. 2. The platform lift according to claim 1, wherein a caster wheel is detachably attached to a center of the fixed leg of the X-link arm.