JP3061149U - Lifting platform for loading and unloading vehicles such as excavators - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] To be able to easily and quickly load and unload a vehicle on a large vehicle or the like with a minimum space. SOLUTION: A hydraulic cylinder 4 for externally fitting a long support having a height exceeding a loading platform of a large vehicle or the like is provided at a front end of a side surface of a table plate 2 having an inclined plate 1 at an end thereof and allowing a vehicle such as an excavator to slope. Be fixed. An operation panel 5 is provided on the table plate, and the hydraulic cylinder 4 is driven and controlled to move up and down on the long support. Further, a short support 6 is fixed vertically below the rear surface of the table plate. When the hydraulic cylinder is moved up and down, the distal end of the table plate rotates in conjunction with the hydraulic cylinder around the short strut as a radius up to the distal end of the table plate. Further, a caster 7 is provided at a lower portion of the short support to prevent the front support from moving forward and backward due to a load on the short support as the axis of the rotation by the rotation of the table plate tip.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lifting platform for loading and unloading vehicles such as excavators, which enables loading and unloading of vehicles such as excavators to large vehicles and the like with a minimum space. is there.

[0002]

[Prior art]

 When loading or unloading a vehicle such as an excavator from a large vehicle, etc., there is a large step between the loading platform of the large vehicle and the ground where the vehicle such as the excavator is in contact. In many cases, loading and unloading is carried out. However, in heavy vehicles such as excavators, it is difficult to adjust the load because a considerable load is applied to the tilt table, and a tilt table having a fixed tilt angle made of concrete or the like is used.

In a lifter using a pantograph mechanism, an inclined plate is provided on a table plate in a descending state, and an inclined plate is provided at a lower portion of the table. When a vehicle or the like rises from the inclined plate and is positioned on the table plate, A table board is lifted by the lifting and lowering movement of the X-shaped support arm, and a loading / unloading platform (Japanese Patent Publication No. 55-36594) that can move a vehicle or the like to a large vehicle has also appeared.

[0004]

[Problems to be solved by the invention]

 When loading and unloading vehicles such as excavators on large vehicles, etc., it is important to keep in mind that work in a limited space, reduction of work time, and adjustment of the inclination angle of the loading platform of large vehicles with different height differences are possible. And the like.

[0005] First, when the inclined base is formed by using a long member, if the occupied space is a problem, the long member is installed in contact with a large vehicle or the like, and a vehicle such as an excavator is mounted from the lowermost end of the long member. When climbing both slopes, it is necessary to minimize the total length of large vehicles, etc. plus long members, and the total length of vehicles such as excavators.

Further, in order to withstand the heavy load of a vehicle such as an excavator, an inclined table having a fixed inclination, such as concrete, may be used as the inclined table. Since the angle of inclination cannot be changed, it must be adjusted to the height of the loading platform of each large vehicle, etc., and several types of inclined platforms are required, resulting in cost, storage space, and movement. Considering the difficulties, difficult tasks remain.

[0007] Next, in the case of using a loading / unloading platform using a pantograph mechanism (Japanese Patent Publication No. 55-36594), a vehicle such as an excavator is placed on a table plate, and the X-shaped support arm is raised and lowered. By raising the entire surface of the table board, it reaches the loading platform of large vehicles.

[0008] However, in order to place a vehicle such as an excavator on the entire surface of the table plate smoothly from the ground, the table plate must be tilted. Therefore, the need for complicated functions of the support arm and the durability against the weight load are issues.

The present invention solves the above-mentioned problems by minimizing the working space, shortening the working time, and adjusting the inclination of the table plate capable of supporting the loading platform of large vehicles having different heights. It is an object of the present invention to provide a loading / unloading platform for a vehicle such as an excavator which can be manufactured at a low cost, for example, for adjustment.

[00010]

[Means for Solving the Problems]

 In order to achieve this object, the loading / unloading platform for an excavator or the like according to the present invention has an inclined plate (1) at its tip and a table plate (2) for climbing the vehicle such as an excavator on a slope. 2) A hydraulic cylinder (4) is fixedly mounted at the front end of the side surface so as to fit the long support (3) to the long support (3) having a height exceeding the height of the loading platform of a large vehicle or the like.

Next, an operation panel (5) is provided at an appropriate position on the table plate (2), and a hydraulic cylinder (4) externally fitted to the long support (3) on the operation panel (5) is hydraulically, electrically and air-cooled. By driving the engine, it is possible to ascend and descend on the long support (3), and the short support (6) is fixed below the rear of the table (2).

Then, when the hydraulic cylinder (4) fixed to the front end of the side surface of the table plate (2) is raised and lowered by operating the operation panel (5), the table plate (2) is centered on the short support (6). ) Is defined as a radius, and the tip of the table plate (2) is rotatable by interlocking.

The pivotal movement of the table plate (2), which rises and falls in conjunction with the elevation of the hydraulic cylinder (4), prevents longitudinal movement of the short strut (6) as a pivotal axis as much as possible. Therefore, a caster (7) is provided below the short support (6).

The height of the short strut (6) located at the rear of the table plate (2) of the loading / unloading platform such as an excavator composed of the above combination is approximately half the height of the loading platform of a large vehicle. A factor that promotes the tip of the table plate (2) to rotate in a circular manner around the column (6), that is, the force controlled by a hydraulic, electric, or air-cooled engine is the side of the table plate (2). It extends only to the hydraulic cylinder (4) fixed to the tip of the table, not to the entire surface of the table plate (2).

That is, an inclined surface is formed so that a vehicle such as an excavator can go uphill only by moving up and down only the tip end of the table plate (2).

[00016]

[Embodiment of the invention]

 An embodiment of the present invention is from a stage after a vehicle loading / unloading platform such as an excavator is moved and mounted in an appropriate position, and a vehicle such as an excavator is moved toward the tip of the inclined plate (1). First, the hydraulic cylinder (4) is lowered by the hydraulic, electric, and air-cooled engine driven by the operation panel (5).

At the stage of lowering, the table plate (2) is inclined downward at the distal end, and the distal end of the inclined plate (1) connected to the distal end is grounded.

Next, a vehicle such as an excavator is climbed uphill on a surface having no step from the table plate (2), the inclined plate (1) and the ground, and the vehicle such as an excavator is mounted only on the table plate (2). .

Then, by raising the hydraulic cylinder (4), the tip of the table plate (2) reaches almost the same position as the bed of a large vehicle or the like. At this stage, the tip of the table plate (2) is almost horizontal. In order to maintain the state, the work is completed by bridging the inclined plate (1) to the carrier and moving the vehicle such as an excavator to the carrier.

[00020]

[Effect of the invention]

 Since the present invention is configured as described above, the following effects appear.

[0002] The lifting platform for a vehicle such as an excavator according to the present invention is a short column opposite to a long column externally fitted to a hydraulic cylinder for raising and lowering the tip of a table plate on a wall side of a work site or the like. It is placed so that the side is located on the wall side or the like.

[00022] Thereafter, a vehicle such as an excavator is positioned at the front of the long support, that is, at the front of the inclined portion so as to be loaded on a large vehicle or the like.

At this stage, the only space required is the total length of the vehicle loading / unloading platform such as the excavator of the present invention plus the total length of the vehicle such as the excavator.

Next, even if the vehicle such as an excavator is climbed from the side of the inclined plate to the table plate, and then a large vehicle or the like is located in front of the inclined plate, the occupied space is limited to the vehicle loading / unloading platform such as the excavator. Only the entire length plus the full length of large vehicles is required.

After that, the work is easily completed by raising the tip of the table plate, moving the vehicle such as the excavator to the loading platform of the large vehicle or the like by hanging the inclined plate over the loading platform of the large vehicle or the like, In the case of lowering, the operation can be easily completed in the reverse order.

That is, if a vehicle such as an excavator is to be loaded and unloaded via a conventional elevating platform and a tilting platform, first, a vehicle such as an excavator and a large vehicle can be located before and after the lifting platform and the tilting platform. Space is required, but in the present invention, the excavator and other vehicles are placed on a table plate to lift and lower, and then the large vehicles are occupied by the excavator and other vehicles. Requires less space.

Further, since the conventional elevating platform and tilting platform are inclined only in one direction, if the angle required for the vehicle such as the excavator to climb a hill is assumed to be an α angle, the vehicle of the present invention such as the excavator and the like can be loaded and unloaded. If the elevator is used, the vehicle such as an excavator is once moved uphill on the table board on the inclined surface of α angle, and then the tip of the table board is raised almost in a horizontal state so as to return in the reverse direction to go uphill. Therefore, the moving distance of the excavator and other vehicles before and after is approximately half the moving distance of the conventional elevators and tilting platforms.

Further, the lifting function according to the present invention can be formed only by raising and lowering only the hydraulic cylinder fixed to the side end by the drive control by a hydraulic, electric or air-cooled engine, thereby increasing the cost of the pantograph. As with the mechanism, the weight load and the complexity of adjustment are not so large as to raise and lower or tilt the entire surface of the table plate.Therefore, durability is ensured, and the work time can be achieved only by operating the operation panel. You can.

By the way, by rotating the table plate which moves up and down in conjunction with the raising and lowering of the hydraulic cylinder, the load on the short column is set as the axis of the rotation, and the caster is provided at the lower part of the short column. By utilizing the extremely low-frictional rotation characteristics of the shaft, it is relaxed to prevent the fore-aft movement of the short strut.

As described above, the present invention significantly reduces the work occupied space, shortens the work time, and facilitates the work. The durability of the vehicle loading / unloading platform itself such as an excavator and the production at a low cost can be achieved. It is intended to provide a platform for loading and unloading a vehicle such as an excavator capable of performing the above.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention.

FIG. 3 is a side view comparing an embodiment of the present invention with an embodiment using a conventional inclined table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inclined board 2 Table board 3 Long support 4 Hydraulic cylinder 5 Operation panel 6 Short support 7 Caster

Claims (1)

[Utility model registration claims] In a table plate (2) having an inclined plate (1) at a front end thereof, a long column (3) having a height exceeding the height of a carrier such as a large vehicle is provided at a front end of a side surface of the table plate (2).
A hydraulic cylinder (4) is fixedly fitted to the outside, and an operation panel (5) is provided at an appropriate position on the table (2). The hydraulic cylinder (4) is mounted on the long support (3) by the operation panel (5). It can be moved up and down, a short column (6) is fixed vertically below the rear part of the table board (2) surface, and a caster (7) is provided below the short column (6).
With the radius of the short strut (6) as the center and the distance from the short strut (6) to the tip of the table plate (2) as a radius, the table plate (2) is rotatable excavating in conjunction with the elevation of the hydraulic cylinder (4). Lifting platform for loading and unloading vehicles