JPH0720145Y2 - Lifting platform for loading and unloading vehicles such as excavators - Google Patents

Description

[Detailed Description of the Invention] (a) Field of industrial use For loading and unloading vehicles such as excavators and other vehicles such as large vehicles in a minimum space easily and quickly The present invention relates to an elevator for loading and unloading vehicles such as excavators.

(B) Conventional technology When loading or lowering a vehicle such as an excavator on a large vehicle, there is a large step between the rear part of the carrier such as a large vehicle and the ground so that the bottom surface of the vehicle such as the excavator contacts. Therefore, it is often the case that an inclined table is formed by a long member and the loading and unloading is performed by interposing the inclined table. However, when moving a light vehicle or the like, even if the height of the rear part of the loading platform of a large-sized vehicle to be loaded is different, it can be accomplished simply by adjusting the inclination angle of the long member. Then, since a considerable load is applied to the inclined surface of the long member, the adjustment becomes difficult. Therefore, a tilt table made of concrete or the like and having a fixed tilt angle may be used.

In a lifter that uses a pantograph mechanism for loading luggage, the table plate is inclined in a lowered state and an inclined plate is provided below the table inclination. When the whole is positioned, the table plate connected to the axis is lifted by the extension motion of the support arm to form an X shape, and the vehicle can be moved to a large vehicle by holding it at a certain height. An elevator for loading (Japanese Patent Publication No. Sho 55-36594) has also appeared.

(C) Problems to be solved by the invention When loading and unloading vehicles such as excavators on large vehicles, points to keep in mind are work in a limited space, work completion in a short time, and height difference. It is possible to adjust the inclination angle for loading platforms such as large vehicles of different sizes.

First, when an inclined table is formed by using a long member, if the occupied space is a problem, the long member is installed so as to be inclined in a large vehicle or the like, and the vehicle such as an excavator is climbed uphill from the bottom end of the long member. In this case, the minimum length is plus the total length of a large vehicle, etc., from the position where the uppermost end touches the loading platform of a large vehicle etc. with the inclined surface as the hypotenuse to the point where it intersects the ground vertically below and the point where the lowermost end touches the ground. The distance plus the entire length of the vehicle such as the excavator is required, and it occupies a considerable space. Moreover, when there is a considerable height between the loading platform and the ground of a large vehicle or the like, the length of the long member must be extended and installed in order to keep the inclination angle constant so as not to make it too high. Space is needed.

In addition, in order to withstand the heavy load of the vehicle such as the excavator, it is possible to use an inclined table whose inclination is fixed, such as concrete, as the inclined surface, but it is formed as a unique mold from the beginning. In other words, since the tilt angle cannot be changed, several types of tilting bases are required according to the height of the loading platform of each large vehicle, etc., and it is difficult to use considering cost, storage space, and difficulty of movement. It is also true that it has the desired elements.

Next, when a lifter using a pantograph mechanism is used, a forklift or the like is climbed on a table plate having an inclined plate as in Japanese Patent Publication No. Sho 55-36594, and the entire surface of the table plate is raised and lowered by raising and lowering an X-shaped support arm. By doing so, it will reach the bed of a large vehicle or the like. However, when the table plate is folded down to the lowest position, it is tilted so that the forklift can smoothly climb uphill, but when the support arm is extended to hold the table plate at the uppermost position, the table plate is It will be almost horizontal and the entire table board will be raised to a considerable height.

By the way, when a vehicle such as an excavator is mounted on a table plate, a considerable weight load is applied even if the pantograph mechanism is used. In order not to raise the entire surface of the table plate to the height of the loading platform such as for large vehicles, it is sufficient to raise only one end that contacts the loading platform and not to raise the other end on the opposite side so much that the support arm is supported. It is necessary to maintain the distraction in the middle of the process, which causes difficulty in terms of function and durability against weight load. That is, not only the complexity of the pantograph mechanism that also leads to high cost, but also the difficulty of having a mechanism that can withstand the heavy load of the vehicle such as the excavator while extending the support arm and tilting the table plate becomes a problem. Become.

The present invention adjusts the inclination of the table plate, etc., which can accommodate the space occupied in the work as a minimum, the work time is shortened, and the loading platform of large vehicles with different height differences can be dealt with in order to solve the above-mentioned problems. It is an object of the present invention to provide an elevating platform for loading and unloading a vehicle such as an excavator that can be manufactured at a low cost, for example.

(D) Means for Solving the Problems To achieve this object, the present invention has the following configuration. That is, in a table plate (2) having a sloping plate (1) through a hinge at its tip end to climb a vehicle such as an excavator, the height of a large vehicle loading platform is attached to the tip end of the side face of the table plate (2). The steel pipe (4) is fixed to the long support column (3) having a height exceeding 1 mm so that the long support column (3) is fitted onto the long support column (3). Next, an operation panel (5) is provided in an appropriate place on the table plate (2), and the operation panel (5) controls the long support column (3) and the steel material cylinder (4) to be driven by a hydraulic, electric or air-cooled engine. This enables the steel tube (4) to move up and down. Also, a short support (6) is fixed vertically below the rear of the table plate (2), a bearing (7) is provided under the short support (6), and a base (9) is provided via a shaft (8).
It will be inserted into. Therefore, a steel tube (4) fixedly mounted on the tip of the side surface of the table plate (2) so as to be arranged in the upper part
When the column is moved up and down, a short column (6) whose center is the axis (8) and whose radius is from the axis (8) to the tip of the table plate (2)
The lower part can be rotated by interlocking.

Short columns (6) located at the rear of the table plate (2) of the elevator for loading and unloading vehicles such as excavators formed from the above combinations
Is about half the height of a large vehicle loading platform, and the tip of the table plate (2) rotates in a circle around the shaft (8) located at the bottom of the short support (6). Incentives,
That is, the force controlled by the hydraulic, electric, air-cooled engine or the like is applied only to the steel material cylinder (4) fixed to the tip of the side surface of the table plate (2), and to the entire surface of the table plate (2). Not of.

In other words, an inclined surface is formed so that the vehicle such as an excavator can be climbed only by raising and lowering only the tip of the table plate (2).

(E) Action The steel cylinder (4) fixedly attached to the tip of the side surface of the table plate (2) and fitted with the long support (3) is driven by the operation panel (5) to control hydraulic, electric, air-cooled engine, etc. When it is lowered to the bottom, the tip of the inclined plate (1), which is connected to the tip of the table plate (2) via a hinge, comes into contact with the ground, and the table plate (2) moves downward. A slope will be formed.

In addition, the steel pipe (4) is connected to the operation panel (5) by hydraulic pressure, electricity,
When the table plate (2) is lifted by controlling the drive of the air-cooled engine or the like, the table plate (2) is inclined upward.

The short column (6) located at the rear of the table plate (2) does not rise or descend, that is, does not expand or contract, etc.
It only rotates back and forth in conjunction with the vertical movement of the tip of the.

(F) Example As an example of the present invention, an excavator for loading a vehicle such as an excavator is moved and placed in an appropriate place, and the excavator is loaded so as to be loaded on a large vehicle toward the tip of the inclined plate (1). From the stage after the vehicle has been moved, the steel tube (4) is first lowered by the drive control of the operation panel (5) such as hydraulic, electric, and air-cooling engines. When the table plate (2) is lowered, the table plate (2) is tilted downward, and the tip of the tilt plate (1) connected to the tip via a hinge is grounded. Next, the vehicle such as the excavator is climbed up through the table plate (2), the inclined plate (1) and the surface having no step from the ground, and the vehicle such as the excavator is placed only on the table plate (2). Next, the steel tube (4) is lifted and the tip plate of the table plate (2) is kept inclined so that the tip part of the table plate (2) reaches almost the same position as the loading platform of a large vehicle or the like. ) Is placed on the loading platform, and the vehicle is moved to the loading platform such as an excavator to complete the work.

With respect to the distance that the vehicle such as the excavator climbs to the loading platform of the large-sized vehicle and the slope inclination angle, the vehicle such as the excavator climbs forward on the inclined surface with the tip of the table plate (2) lowered, Then, the table plate (2) climbs up by reaching the cargo bed by retreating the inclined surface that has risen in a raised state. In other words, the distance actually traveled by the vehicle such as the excavator is about half of the uphill distance due to the forward / backward movement, which saves the occupation space. Moreover, the uphill inclination angle is half the angle with respect to the moving distance to the height of the loading platform.

(G) Effect of the invention When loading or unloading a vehicle such as an excavator on a loading platform of a large-sized vehicle via a lifting platform or a sloping platform, the problem is how to occupy the space including the installation location of the lifting platform. Can be reduced, how to shorten the time for loading and unloading, how to safely load and unload, the durability of the lifting platform, tilting platform, etc., but the present invention overcomes any problems is doing.

At the boundary of the unloading work site of the excavator and other vehicle loading / unloading platform of the present invention, the short column side, which is the side opposite to the long column that is externally fitted to the steel tube to support the lifting of the table plate tip, is located. Move and place it. After that, a vehicle such as an excavator is positioned at the front of the long support, that is, the front of the inclined plate so that it can be loaded into a large vehicle. The occupied space required at this stage is only the total length of the lifting platform for loading and unloading the vehicle such as the excavator plus the total length of the vehicle such as the excavator. Even if a vehicle such as an excavator is climbed up to the slope plate / table plate, and then a large vehicle is placed in front of the slope plate where the vehicle such as the excavator is located first, the occupied space will not be occupied. Only the total length of the lifting platform for loading and unloading vehicles such as shaving machines plus the total length of large vehicles. After that, the work is easily completed by raising the tip portion of the table board, moving backward to the table board in the opposite direction to the backward direction, going uphill while moving backward, and moving to the bed of a large vehicle or the like. Also, when descending, it is easily completed in the reverse order.

That is, when trying to load a vehicle such as an excavator into a large-sized vehicle via a conventional lifting platform or tilt platform, first, the vehicle such as the excavator or large vehicle is positioned before or after the elevator platform or the tilt platform. It requires a moving space that can be created and occupies much less space in the present invention.

In other words, in the conventional case, the minimum space is required to be the entire length of the vehicle such as the excavator plus the lifting platform, the entire length of the tilting platform plus the large vehicle, and the lifting platform and the tilting platform can be tilted in only one direction. If so, if the vehicle such as an excavator requires at least an α-angle to climb the slope, if the vehicle's loading elevator of the present invention is used, it will be a part of the slope of the α-angle. At this point, the vehicle such as a digging machine is climbed forward on the table board, and then the tip of the table board is raised to have an inclination of α angle in the opposite direction, so that the vehicle goes uphill backward to return in the opposite direction. The traveling distance of a vehicle such as a shaving machine can be about half of the uphill distance of a conventional lifting platform or a tilting platform.

In addition, since the slope is formed only by raising and lowering the steel material cylinder fixed to the side end by hydraulic, electric, air-cooled engine drive control, etc., the entire table board is raised and lowered like a pantograph mechanism that leads to high cost. The more the slope is formed, the less the burden of weight and the complexity of adjustment are reduced. Therefore, the durability is secured, and the work time is only required to operate the operation panel. The efficient work progresses and the manufacturing at low cost is possible. Become.

As described above, the present invention allows vehicles such as excavators and large vehicles to be positioned in the same direction, so that only the tip of one side can be raised and lowered to incline up to the table plate, and from the table plate to large vehicles. Since the same table plate is used to incline the vehicle up to the loading platform, and in the opposite direction, the excavator and other vehicles simply reciprocate the front-back distance of the table plate regardless of whether the vehicle moves forward or backward. It brings about a great reduction of the occupation space in the work, and has excellent functions such as reduction of occupation space, reduction of work time, easy work, durability, and excavation that can be manufactured at a low cost. The purpose of the present invention is to provide a lifting platform for loading and unloading vehicles such as machines.

[Brief description of drawings]

1 is a side view showing an embodiment of the present invention. FIG. 2 is a perspective view of the present invention. FIG. 3 is a side view comparing an embodiment of the present invention with an embodiment using a conventional tilting base. 2 ... Table board 3 ... Long column, 4 ... Steel tube 5 ... Operation panel, 6 ... Short column 7 ... Bearing part, 8 ... Axis, 9 ... Base

Claims (1)

[Scope of utility model registration request] 1. A table plate (2) having an inclined plate (1) at its tip through a hinge, and a length having a height exceeding the height of a loading platform for large vehicles such as a side end of the table plate (2). A steel material cylinder (4) is fixedly mounted on the pillar (3), an operation panel (5) is provided at a proper position of the table plate (2), and the long pillar (3) and the steel material tube (5) are attached to the operation board (5). 4) The steel cylinder (4) can be moved up and down by controlling and, and the short support (6) is fixed vertically below the rear surface of the table plate (2), and the bearing is provided below the short support (6). (7) is provided and inserted into the base (9) through the shaft (8), and the table (2) is centered on the shaft (8) and the distance from the shaft (8) to the tip of the table plate (2) is a radius. Lifting platform for loading and unloading vehicles such as excavators that can be rotated to interlock with the lifting and lowering of the steel tube (4) fixed to the side end of the plate (2)