JP2514108Y2 - Vehicle lift device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle lift device, and more particularly to a vehicle lift device suitable for draining oil of a differential gear of a large vehicle.

[0002]

2. Description of the Related Art Conventionally, a vehicle lift device generally comprises a combination of a fixed lift fixedly buried on the floor surface and a movable lift provided horizontally movable in a pit. The load receiving base of the lift has been provided, for example, such that the axis of the rear axle shaft of the maintenance vehicle and the core of the operating rod of the movable lift are aligned with each other. Then, in the above-mentioned type of vehicle lift device, when removing the waste oil of the vehicle, after lifting the maintenance vehicle by the lift device, a waste oil receiver or a dedicated waste oil receiver set with a saucer and a portable waste oil tank The oil drain was carried to a proper position below the diff of the maintenance vehicle, or the upper end of the lifting rod was fitted with the waste oil receiver with the upper opening, and then the blind plug of the diff was opened and pulled out to the tray.

However, the conventional method using the dedicated oil drain machine has the following drawbacks.

Since the height of the maintenance vehicle cannot be freely set, and the axis of the rear axle shaft of the maintenance vehicle and the axis of the operating rod of the vehicle lifting device are aligned with each other, waste oil is scattered. , It is not possible to clean the waste oil cleanly by not only the workers but also the surroundings. Every time the saucer becomes full, the waste oil must be disposed of in another drum or drain port where waste oil is accumulated, so the work is difficult and the work efficiency is poor.

[0005]

SUMMARY OF THE INVENTION In consideration of the above-mentioned conventional drawbacks, the present invention has an optimum height of the waste oil receiver to prevent the waste oil from splashing when the oil is extracted from the differential gearbox of the maintenance vehicle. An object of the present invention is to obtain a lift device for a vehicle, which can be easily set to an optimum location and which can significantly reduce the labor of a worker who processes waste oil and improve work efficiency.

[0006]

In the vehicle lift device of the present invention, a movable lift 20 provided horizontally movable in a pit with respect to a fixed lift 2 and a cylinder 8A horizontally move together with the movable lift. 9A, which is integrally attached to the movable lift 20 via a support plate 23 so as to be able to perform, and is fitted and inserted into the cylinder 8A.
A waste oil cylinder device 7A having a waste oil receiver 10A at its upper end, and an axial center of the rear axle shaft of the maintenance vehicle V and a core of the operating bar 5A, which are provided at the upper end of the movable lever 5A of the movable lift. 6 having a pair of projecting arms 41 for receiving the maintenance vehicle V so that they are displaced from each other.
A and a waste oil tank 11 which is provided at an appropriate place and stores the waste oil flowing into the waste oil receiver 10A via a waste oil guide member 12A, the cylinder 8A of the waste oil cylinder device 7A is suitable. It is supported in a slightly tilted state so as to be directed to the projecting arm 41 that has been raised or lowered to any height or the rear axle housing H of the maintenance vehicle V, and the projecting arm 41 of the load receiving base is provided with the operating rod 5
It is characterized in that the width is adjustable on the carrier base plate 40 attached to the upper end of A.

In the above structure, when the protruding arm of the load receiving base is provided on the loading base base plate so that the width can be adjusted, it is desirable to appropriately provide a stopper piece for stopping the protruding arm at a predetermined position.

The vehicle lift device of the present invention is different from the first fixed lift 2 in that the second fixed lift 20B fixedly provided in the pit and the cylinder 8B are separate from this movable lift. There is a waste oil cylinder device 7B having a waste oil receiver 10A at the upper end of an elevating rod 9A that is fixedly arranged in the pit and is inserted into the cylinder, and the upper end of the operating rod 5A of the movable lift 20B. And a load receiving base 6A having a pair of projecting arms 41 for receiving the maintenance vehicle V so that the axial center of the rear axle shaft of the maintenance vehicle V and the core of the operating rod 5A are displaced from each other. And a waste oil receiver 10A
A waste oil tank 11 for accommodating the waste oil flowing therein through a waste oil guide member 12A is provided, and the cylinder 8B of the waste oil cylinder device 7B is provided with the protruding arm 41 that has been raised and lowered to an appropriate height or the rear axle of the maintenance vehicle V. It is supported in a slightly tilted state so as to be directed to the housing H, and the projecting arm 41 of the load receiving base is provided on the load carrier base plate 40 attached to the upper end of the operating rod 5A so that the width can be adjusted. And

[0009]

First, the maintenance vehicle is lifted up to an appropriate height by the movable lift provided with the fixed lift and the load receiving stand having the protruding arm. Next, the elevating rods of the first and second waste oil cylinder devices are synchronously raised, and the first and second waste oil receivers are placed in the vicinity of the oil blind plug of the engine, transmission, differential gearbox, etc. of the maintenance vehicle. Position each. Then, the oil draining work is started. The oil discharged from the maintenance vehicle flows into the first and second oil receivers, respectively, and is stored in the waste oil tank via the respective waste oil guide members.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings. 1 to 7 show a first embodiment of the present invention, and FIGS. 8 and 9 show a second embodiment of the present invention.

In the first embodiment, X is a two-cylinder type vehicle lift device used to lift up a large vehicle such as a truck. More specifically, 1
Is a pit formed on the floor surface F. A fixed lift 2 is fixedly provided in the pit 1. The fixed lift lifts up the front side of the maintenance vehicle. Fixed lift 2
Is equipped with a hydraulic unit 3 as appropriate, and is vertically erected at a position close to one inner surface of the pit 1 in a vertical state.
An operating rod 5 fitted and inserted in the hydraulic cylinder 4 and moved up and down by a pressure medium using the hydraulic unit 3 as a drive source; and an operating rod 5 attached to an upper end portion of the operating rod 5.
And a cargo receiving stand 6 for supporting the maintenance vehicle.

Reference numeral 7 is a first waste oil cylinder device provided in the pit 1 so as to face the hydraulic cylinder 4 of the fixed lift 2. This first waste oil cylinder device 7
Is a cylinder 8 fixedly erected in the pit 1 and having a required length, and an elevating rod which is inserted into the cylinder 8 and moves up and down in the same direction as the operating rod 5 of the fixed lift 2 by the pressure medium. 9 and a first waste oil receiver 10 which is fixedly attached to the upper end of the elevating rod 9 and receives the oil extracted mainly from the engine and the transmission of the maintenance vehicle.
The inner wall bottom surface 10a of No. 0 is formed in a slightly inclined shape as shown in FIG.

Reference numeral 11 denotes a waste oil tank installed in the pit or in an appropriate place other than the pit, in this embodiment, in the pit 1. The waste oil tank 11 is not particularly shown, but an alarm is issued when the tank is full. An alarm is provided.

Reference numeral 12 denotes a first waste oil guide member having a lower end portion connected to the waste oil tank 11 and an upper end portion connected to a downstream side of the first waste oil receiver. An outer cylinder pipe 13 whose lower end is attached to the waste oil tank and has a required length, and an inner cylinder pipe 14 which is guided by the outer cylinder pipe 13 and whose upper end is attached to the inner wall bottom surface 10a of the waste oil receiver 10. .

Reference numeral 15 denotes a pit 1 provided on the fixed lift 2 side.
The first pit cover plate covers a part of the opening of the first pit cover plate, and a through hole for guiding the operating rod 5 of the fixed lift is formed in the central portion of the first pit cover plate 15.

Reference numeral 16 is a second pit cover plate which is provided on the side of the first waste oil cylinder device 7 and covers a portion of the opening of the pit 1 above the waste oil receiver 10. Is composed of a mounting plate 17 and a pair of opening / closing lids 18 provided inside the mounting plate 17 so as to be openable and closable.

Next, 20 is a movable lift that horizontally moves in the pit 1A, and this movable lift lifts up the rear side of the maintenance vehicle. The movable lift 20 has a plurality of running rollers 21 at the upper end of a rear hydraulic cylinder 4A having a hydraulic unit 3A, and the center point of the operating rod 5A of the rear hydraulic cylinder is provided at both ends of the rear load carrier 6A. 0
It has a pair of protruding arms that extend horizontally in a more offset state.

Now, the rear cradle 6A will be described in more detail with reference to FIGS. 3 to 5. Reference numeral 40 denotes a carrier base plate fixedly attached to the upper end of the operating rod 5A. On the upper surfaces of both ends, the axle of the rear axle shaft of the maintenance vehicle supported and the operating rod 5A are supported.
A pair of projecting arms 41, 41 for receiving the maintenance vehicle are provided so that their cores are displaced from each other.

Thus, the pair of projecting arms 41 are provided on the luggage carrier base plate 40 in such a manner that the width thereof can be adjusted. Mounted opposite to each other
It has a sliding plate portion 44 supported by the individual holding members 42, 43. It should be noted that one of the holding members 42 is shorter than the other, and when the protruding arm 41 slides inward, the end surface thereof contacts the inner surface of the protruding arm 41 and functions as a so-called stopper piece. Further, reference numeral 45 denotes a plurality of stopper pieces which are provided at an end portion of the luggage carrier base plate 40 and which stop the protruding arm 41 at a predetermined position when the protruding arm 41 slides outward.

Next, 7A is integrally attached to a part of the rear hydraulic cylinder 4A of the movable lift 20 near the upper end via a support plate 23, and the second waste oil receiver 1 is attached to the upper end.
It is the second waste oil cylinder device having 0A. The cylinder 8A of the second cylinder device 7A for waste oil is
The protruding arm 41 whose upper end side is moved up and down to an appropriate height.
Alternatively, it is supported in a slightly tilted state so as to be directed to the rear axle housing H of the maintenance vehicle V.

Reference numeral 12A is a second waste oil guide member for guiding the waste oil flowing into the second waste oil receiver 10A to the waste oil tank 11, and this second waste oil guide member 12A is the second waste oil guide member 12A.
A flexible hose 24 having a required length, the upper end of which is connected to the bottom of the waste oil receiver 10A, and the flexible hose 24
Of the gutter 25, which is connected to the lower end of the gutter 25 and is arranged in the pit 1 in a slightly inclined shape, and the upper end is connected to the downstream side of the gutter 25, while the lower end is connected to the waste oil tank 11. And a guide pipe 26.

Reference numeral 17A is a mounting plate having an opening / closing lid 18A on which the second waste oil receiver 10A can be projected and retracted. The mounting plate 17A is integrally mounted on the movable lift 20.

Reference numeral 27 denotes a pit cover plate that is endlessly attached to both end faces of the mounting plate 17A and is foldably connected by a number of elongated plate pieces. At both end portions of the endless pit cover plate 27, A pair of traction chains 31 are provided, each of which is guided by a plurality of sprockets 28 and a drive sprocket 30 of a drive device 29 for moving the movable lift 20. Therefore, the sprocket 28 is provided on the horizontal shaft that is horizontally installed in the pit, and the movable lift 20
Is guided by the guide rail 32 via the traveling roller 21.

In the above construction, when oil is to be extracted from the engine, transmission and differential gearbox of a large maintenance vehicle, for example, the drive device 29 is first driven to horizontally move the movable lift 20 to an appropriate position. Next, the fixed lift 2 and the movable lift 2
The operating rods 5 and 5A of 0 are synchronously raised to lift the maintenance vehicle (especially a large vehicle) V to an appropriate height. At this time, the rear axle housing H of the maintenance vehicle V supported by the projecting arm 41 of the rear load receiving stand 6A is in a state of being offset rearward from the center point (core) of the operating rod 5A, as shown in FIG.

Next, the elevating rods 9 and 9A of the devices 7 and 7A are freely raised to appropriate positions to the first and second waste oil cylinders. Then, the first waste oil receiver 10 faces below the engine and transmission of the maintenance vehicle V, while the second waste oil receiver 10A faces just below the differential gearbox of the maintenance vehicle V. When the second waste oil receiver 10A is raised by the elevating rod 9A, the flexible hose 24 follows it.

When the blind plugs are opened, the oil in the engine and the transmission flows out into the first waste oil receiver 10, is guided by the first waste oil guide member 12, and flows into the waste oil tank 11. On the other hand, the oil in the differential gearbox is the second waste oil receiver 10A.
It flows in and first flows into the gutter 25 through the flexible hose 24. Since waste oil is viscous, it easily flows when the gutter 25 is used. Then, the waste oil flowing to the downstream side of the gutter 25 is guided by the guide pipe 26 and flows into the waste oil tank 11.

Next, a second embodiment of the present invention shown in FIGS. 8 and 9 will be described. Since the second embodiment has the same main parts as the first embodiment of the present invention, the same parts as those of the first embodiment are designated by the same reference numerals, and a duplicate description will be omitted.

In the vehicle lift device Y of the second embodiment, the main difference from the first embodiment is that the movable lift on the rear side is fixed to the second fixed lift 2 like the first fixed lift 2 on the front side. In addition to the lift 20B, the second waste oil cylinder device 7B is separate from the fixed lift 20B and is fixedly arranged in the pit 1. In other words, the vehicle lift device Y includes the second fixed lift 20B fixedly provided in the pit 1 with respect to the first fixed lift 2.
The cylinder 8B is a separate body from the movable lift, is fixedly arranged in the pit, and the waste oil receiver 10A is provided at the upper end of the lifting rod 9A fitted into the cylinder.
A cylinder unit for waste oil 7B having the above, and a maintenance vehicle provided at the upper end of the operating rod 5A of the movable lift 20B, and the axial center of the rear axle shaft of the maintenance vehicle V and the core of the operating rod 5A are displaced from each other. A load receiving table 6A having a pair of projecting arms 41 for receiving V, and a waste oil tank 11 which is provided at an appropriate position and stores the waste oil flowing into the waste oil receiver 10A via a waste oil guide member 12A, The cylinder 8B of the waste oil cylinder device 7B is provided with the protruding arm 41 which is moved up and down to an appropriate height.
Alternatively, it is supported in a slightly tilted state so as to be directed to the rear axle housing H of the maintenance vehicle V, and the projecting arm 41 of the loading platform is provided on the loading platform base plate 40 attached to the upper end of the operating rod 5A so that the width can be adjusted. It is characterized by being. Even with this structure, the same operation and effect as those of the first embodiment can be obtained.

[0029]

As is apparent from the above description, the present invention has the following effects. (1) Since the waste oil cylinder device having the waste oil receiver is provided, the height of the maintenance vehicle can be freely set, and the axis of the rear axle shaft of the maintenance vehicle and the core of the operating rod of the vehicle lifting device can be set. Since the load receiving base having the projecting arm for supporting the maintenance vehicle is provided so that the and are shifted from each other, the waste oil does not scatter around. Therefore, the waste oil can be treated cleanly. (2) For example, in a large-sized vehicle, if the waste oil is removed, the weight of the oil alone will be about 40 kg, and the weight will be considerable when combined with the waste oil receiver. The effort of carrying it to the bottom of the vehicle or cleaning it up is excessive. According to the present invention, since the waste oil cylinder device having the waste oil receiver is provided so as to face the fixed lift installed in the pit or to the movable lift that horizontally moves in the pit through the support plate, Can be significantly reduced. (3) By combining the lifting device for raising and lowering the vehicle and the device for the waste oil cylinder having the waste oil receiver, the height at which the worker can easily perform the maintenance work can be freely set.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a first embodiment of the present invention.

FIG. 2 is a schematic explanatory view of the first embodiment of the present invention seen from a plane.

FIG. 3 is an explanatory view of a main part (rear load receiving base) of the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a main part (rear load receiving base) of the first embodiment of the present invention.

FIG. 5 is an explanatory view of a main part (rear load receiving base) of the first embodiment of the present invention.

FIG. 6 is a schematic explanatory view of a usage state of the first embodiment of the present invention.

FIG. 7 is an explanatory view of a main part (positions of a rear load receiving base and an operating rod) of the first embodiment of the present invention.

FIG. 8 is a schematic explanatory view of a second embodiment of the present invention.

FIG. 9 is a schematic explanatory view of a usage state of a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pit, 2, 20B ... Fixed lift 3, 3A ... Hydraulic unit, 4 ... Hydraulic cylinder, 4A ... Rear hydraulic cylinder 5, 5A ... Operating rod, 6, ... Load carrier, 6A ... Rear load carrier, 7, 7A, 7B ... Cylinder device for waste oil,
8, 8A, 8B ... Cylinder, 9, 9A ... Lifting rod,
10, 10A ... waste oil receiver, 11 ... waste oil tank, 12,
12A ... Waste oil guide member, 17, 17A ... Mounting plate, 1
8 ... Open / close lid, 20 ... Movable lift, 23 ... Support plate, 25 ...
Gutter, 29 ... Driving device, 40 ... Luggage base plate, 41 ... Projecting arm, 42, 43 ... Holding member, 44 ... Sliding member, 45
… A stopper piece.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-50-55052 (JP, A) real-opening Sho 63-186915 (JP, U) real-opening Sho 51-97694 (JP, U) real-opening Sho 57- 98957 (JP, U)

Claims (2)

(57) [Scope of utility model registration request] 1. A movable lift 20 provided horizontally movable in a pit with respect to a fixed lift 2 and a support plate 23 so that a cylinder 8A can move horizontally together with the movable lift. A waste oil cylinder device 7A having a waste oil receiver 10A at the upper end of an elevating rod 9A that is integrally attached to the lift 20 and is inserted into the cylinder 8A, and is provided at the upper end of the operating rod 5A of the movable lift. And a load receiving base 6A having a pair of projecting arms 41 for receiving the maintenance vehicle V such that the axis of the rear axle shaft of the maintenance vehicle V and the core of the operating rod 5A are displaced from each other, and the load receiving table 6A is provided at an appropriate position, and , Waste oil receiver 10
A waste oil tank 11 for accommodating the waste oil flowing into A through a waste oil guide member 12A is provided, and the cylinder 8A of the waste oil cylinder device 7A is provided with the protruding arm 41 or the maintenance vehicle V which has been elevated and lowered to an appropriate height. It is supported in a slightly tilted state so as to be directed to the rear axle housing H, and the projecting arm 41 of the loading platform is provided on the loading platform base plate 40 attached to the upper end portion of the operating rod 5A so as to be adjustable in width. Characteristic vehicle lift device. 2. A second fixed lift 20B fixedly provided in the pit and a cylinder 8B are separate from the first fixed lift 2 and the movable lift, and are fixedly fixed in the pit. A waste oil cylinder device 7B having a waste oil receiver 10A at the upper end of an elevating rod 9A inserted into the cylinder and provided on the upper end of the operating rod 5A of the movable lift 20B, and for maintenance. A pair of projecting arms 4 for receiving the maintenance vehicle V such that the axis of the rear axle shaft of the vehicle V and the axis of the operating rod 5A are displaced from each other.
1 and a waste oil tank 11 that is provided at an appropriate place and stores the waste oil that has flowed into the waste oil receiver 10A via a waste oil guide member 12A. Cylinder 8B
Is supported in a slightly tilted state so as to be directed to the projecting arm 41 that has been raised or lowered to an appropriate height or the rear axle housing H of the maintenance vehicle V, and the projecting arm 41 of the load receiving base is attached to the upper end portion of the operating rod 5A. A lift device for a vehicle, characterized in that the width is adjustable on the attached carrier base plate 40.