JPH06199210A - Piling up and loading and unloading device of self travel type cart - Google Patents

Abstract

PURPOSE:To conduct loading and unloading quickly and safely and with labor saving by providing horizontal extension/contraction bodies that extend/contract horizontally, on the front and rear sides of the travel devices of a self travel type cart provided with travel devices on both right and left sides, providing at the free ends of the horizontal extension/contraction bodies support ascent/descent devices whose support ascent/descent can be adjusted freely. CONSTITUTION:Travel devices 3, 3 are provided on both righ and left sides of a self travel cart 2, and on the front and rear side ends of the travel devices 3, 3, horizontal extension/contraction bodies 5a-5d that can be moved extendingly and contractingly in mutually contradicting horizontal direction by means of extension/contraction movement devices (6a-6d), are provided. Support ascent/descent devices 7a-7b are provided ascendably/descendably on the free end sides of the horizontal extension/contraction bodies 5a-5d. These supports 8a-8d are made to extend/contract upward and downward by means of hydraulic cylinders. As a result, the positions of support ascent/descent devices 7a-7d are set by means of the horizontal extension/contraction bodies 5a-5d, and the self travel type cart 2 is lifted up an supported by ascending/descending the supports 8a-8e.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a prop lifter or pantograph lifter which is vertically adjusted to move a heavy self-propelled vehicle safely and quickly with reduced labor. The present invention relates to a stacking and unloading device for a self-propelled carrier that can be stacked or unloaded on the bed of a carrier such as a truck.

[0002]

2. Description of the Related Art Conventionally, a traveling device is provided on both left and right sides, and a loading platform which can be vertically moved by a pantograph-type elevating device is provided between the traveling devices to convey an article to an arbitrary place. A self-propelled carrier capable of carrying out the above is well known without exemplifying it before the present application. In addition, stacking self-propelled vehicles as described above on the bed of trucks,
Alternatively, a transportation technology using a crane for loading and unloading, and a transportation technology using a guide traveling platform that extends across a cargo bed and the ground are well known without exemplifying before the application.

[0003]

By the way, in the conventional transportation technique of this kind, the transportation place is limited because the expensive crane or the like is required, and the transportation work can be carried out quickly with labor saving. Of course, it is impossible to do it, but when using the guide carriage, there is a problem that the self-propelled transport vehicle accidentally falls off the guide guide during stacking and unloading work, causing an unexpected human accident. Had.

According to the present invention, the entire self-propelled vehicle having traveling devices on the left and right sides is expanded and contracted by a horizontal expansion / contraction body which is expanded / contracted in the opposite horizontal directions by the operation of the expansion / contraction moving device. A self-propelled carrier with a heavy weight can be lifted higher than the loading platform of a carrier such as a truck by the vertical movement of a pillar or a pantograph-type lifting device that is vertically moved by the rotation operation and the operation of the pillar lifting device. It is an object of the present invention to provide a stacking and unloading device for a self-propelled carrier that can be quickly and safely stacked on a loading platform or unloading from the loading platform with labor saving.

[0005]

To achieve the above object, a stacking and unloading device for a self-propelled carrier according to the present invention is the first invention, which is a self-propelled carrier equipped with traveling devices on both left and right sides. Provided on the front and rear sides of the left and right traveling devices are horizontal telescopic bodies that can be telescopically moved in opposite horizontal directions by telescopic moving devices, and self-propelled on the free end sides of the respective horizontal telescopic bodies. It is provided with a column elevating device that adjusts the entire carrier up and down.

Further, in the second invention, a self-propelled transporting vehicle having traveling devices on both left and right sides is provided, and front and rear side portions of the traveling devices on both left and right sides are provided with a base end side of a rotatable overhanging body. And a column elevating device for vertically adjusting the entire self-propelled transporting vehicle is provided on the free end side of each of the projecting bodies.

Further, in the third aspect of the invention, self-propelled vehicles having traveling devices on both left and right sides are provided, and the front and rear side portions of the traveling devices on both left and right sides are expanded and contracted in opposite horizontal directions by telescopic moving devices. A movable horizontal expandable body is provided, and pantograph type lifting devices for vertically adjusting the entire self-propelled transport vehicle are mounted on the free end sides of the left and right front and rear horizontal expandable bodies.

[0008]

In order to quickly and safely stack a heavy self-propelled carrier on the loading platform with labor saving by using the self-propelled carrier stacking and unloading device according to the first aspect of the invention, first, ,
Operate the telescopic moving devices provided on the front, rear, left and right sides of the left and right traveling devices respectively by operating the operation box, and the horizontal telescopic bodies provided at the front, rear, left and right positions are directed to the opposite horizontal direction, and the width is smaller than the carrier bed width of the carrier. Extend it to be long.

Next, under the above-mentioned state, the column elevating device provided on the free end side of each horizontal elastic body is operated by the operation of the operation box to extend the columns sequentially. Then, when the entire propelling vehicle is lifted higher than the bed height by the extension operation of the prop, the operation of the prop lifting device is stopped, and between the front, rear, left and right props where the cargo carrier of the truck or the like is extended. Move backward to position.

Next, when it is confirmed that the loading platform is surely positioned between the front, rear, left and right columns, the column elevating device is operated by operating the operation box, and the columns are reduced to the minimum position. It can be stacked on the bed quickly and under safe conditions. As described above, when the self-propelled transport vehicles are stacked on the loading platform, the telescopic moving device may be actuated again to reduce the horizontal telescopic bodies at the front, rear, left, and right positions to the state at the time of starting. In addition, if you want to load and unload the self-propelled carrier that was loaded on the platform quickly and with safety while keeping the safety condition,
The operation opposite to the above should be performed.

Further, even when a heavy load is loaded on the loading platform, the self-propelled transport vehicle may be stacked on the loading platform or loaded with the heavy load loaded on the loading platform by the same operation as described above. Can be wholesale.

Furthermore, if the loading platform can be moved up and down by using the pantograph type lifting device, the cargo loaded on the loading platform can be transported not only on the loading platform but also to other high places. It is natural that you can do it.

When it is desired to stack the self-propelled transport vehicle on the bed using the stacking and unloading device for the self-propelled transport vehicle according to the second aspect of the present invention, first, the self-propelled transport vehicle is stored on one side of the left and right traveling devices. Further, each of the overhanging bodies is pivoted about the pivot axis so as to be orthogonal to the traveling device to laterally overhang, and the columns provided at the free ends of each overhanging body. The propellers are extended by operating the traveling devices by operating the operation boxes.

Next, when the entire propelling vehicle is lifted higher than the height of the bed by the extension operation of the columns, the operation of the column lifting device is stopped, and the loading platform of the carrier is positioned between the extended front, rear, left and right columns. Move backward as you would.

Next, when the loading platform is surely positioned between the front, rear, left and right columns, the column elevating device is operated by operating the operation box and the columns are reduced to the minimum position, so that the self-propelled carrier can save labor. With, you can quickly and safely stack them on the bed. When the self-propelled transport vehicles are piled up as described above, each of the overhanging bodies may be rotated inward about the rotation axis and stored in one side of the left and right traveling devices. In addition, when it is desired to unload the self-propelled carrier loaded on the loading platform, the reverse operation to the above may be performed.

When it is desired to stack the self-propelled transport vehicle on the loading platform by using the stacking and unloading device for the self-propelled transport vehicle according to the third aspect of the present invention, first, the front, rear, left and right side portions of the traveling devices on both left and right sides are to be loaded. The provided telescopic moving devices are operated by operating the operation box, and the horizontal telescopic bodies provided at the front, rear, left, and right positions are oriented in opposite horizontal directions and extended so as to be longer than the bed width of the carrier.

When the above operation is completed, the pantograph type lifting devices located on both sides are operated by operating the operation box to raise them, and the entire self-propelled transport vehicle is raised above the height of the bed. Then, when the entire self-propelled carrier rises higher than the luggage carrier, the carrier platform is moved backward between the left and right pantograph-type lifting devices and directly below the self-propelled carrier, and then left and right. The pantograph-type lifting device is reduced by operating the operation box, and at the same time, the telescopic moving device is activated to reduce the horizontal telescopic bodies in the front, rear, left and right.

By the way, the self-propelled carrier can be automatically and quickly stacked on the carrier of the carrier with labor saving and on the carrier of the carrier. In addition, when it is desired to unload the self-propelled carrier loaded on the loading platform, the reverse operation to the above may be performed.

[0019]

EXAMPLES Examples will be described with reference to the drawings. In FIG. 1 to FIG. 3, A is a transportation vehicle including a truck having a loading platform 1, and 2 is a self-propelled transportation vehicle having crawler type self-propelled devices 3 on both left and right sides. The self-propelled carrier 2 is provided with a mounting base 4 which is vertically moved up and down by a well-known pantograph type lifting device (not shown) or the like. Reference numerals 5a, 5b, 5c, and 5d denote four horizontal telescopic bodies, each of which is composed of a rectangular frame body horizontally mounted so as to be telescopically movable at the front and rear positions of the left and right traveling devices 3 and 3. Horizontal telescopic bodies 5a, 5b, 5c, 5d
Is a telescopic moving device 6a, 6 composed of a hydraulic cylinder or the like.
By the operations of b, 6c, and 6d, it is possible to perform simultaneous expansion and contraction operations in the opposite horizontal directions. Further, on the free end side of each of the horizontal expandable bodies 5a, 5b, 5c, 5d, a hydraulic cylinder type column elevating device 7 for vertically adjusting the columns 8a, 8b, 8c, 8d.
a, 7b, 7c, 7d are provided to support the columns 8a, 8b, 8
By the lifting operation of c and 8d, the entire self-propelled carrier 2 is lifted higher than the bed 1 or lowered below the bed 1. On the front side of the self-propelled carrier 2, a traveling device 3,
3, an operation box 9 equipped with a drive source for operating the telescopic moving devices 6a, 6b, 6c, 6d and the column elevating devices 7a, 7b, 7c, 7d and the like.

4 and 5 are an overall perspective view and an enlarged perspective view of an essential part of a stacking and unloading device for a self-propelled transporting vehicle according to the second invention. In the thing, in place of the horizontally extending / contracting bodies 5a, 5b, 5c, 5d which extend / contract in opposite horizontal directions, the overhanging body 10a which can be rotationally adjusted around the rotating shaft 15 on the front, rear, left and right sides of the traveling devices 3, 3. , 10b, 10c, and 10d are mounted on the loading platform 1 so that the self-propelled transport vehicle 2 can be quickly and safely stacked on the loading platform 1 or unloaded on the ground from the loading platform 1 with labor saving. It is a thing. Therefore, at the front-rear and left-right positions of the side plates 11, 11 of the left and right traveling devices 3, 3, four fixing bases 12, which are vertically projected at intervals with the bearing plates 13, 13 facing outward, are attached, and Bearing plate 1
The column elevating device 7a, 7b, 7 is provided on the free end side between 3 and 13.
overhanging bodies 10a, 10b, 10c, 10 provided with c, 7d
The boss cylinders 14, ..., Which are respectively provided on the base end side of d, are set in the fitting positions, and the upper and lower bearing plates 13, 13 and the boss cylinder 14 are rotatably connected by the rotating shaft 15 penetrating therethrough. Then, the upper bearing plate 13 has a plurality of fixing position holes 16.
... perforating the concentric circles at intervals.
Also in the overhanging bodies 10a, 10b, 10c, 10d, one fixing pin hole 17 corresponding to the fixing position hole 16 ... Is bored to form any one of the fixing position holes 16 and the fixing pin hole 1.
7 and the fixing pin 18 inserted over
The a, 10b, 10c and 10d are firmly fixed at arbitrary positions. Therefore, since the overhanging bodies 10a, 10b, 10c, 10d which are axially mounted at the front, rear, left and right positions of the traveling devices 3, 3 can be easily rotated by inserting and removing the fixing pin 18 around the rotating shaft 15, as a whole. When the mobile carrier 2 is traveling, the overhanging bodies 10a, 10b, 10c, 10d.
The vehicle is swiveled and housed on one side of the traveling devices 3 and 3 to efficiently carry out various carrying operations, and the overhanging bodies 10a, 10b, 10c,
The structure is the same as that of the first aspect of the invention except that it can be rotated so as to project 10d.

6 and 7 are a partially cutaway perspective view and a plan view of a stacking and unloading device for a self-propelled transporting vehicle according to a third aspect of the present invention, respectively. In the above, the pair of left and right pantograph type lifting devices 19, instead of the column lifting devices 7a, 7b, 7c, 7d, are provided on the free end sides of the front and rear horizontal elastic members 5a, 5b, 5c, 5d that expand and contract in opposite horizontal directions. The self-propelled carrier 2 can be loaded on each of 19 and can be quickly and safely stacked on the loading platform 1 or can be unloaded on the ground from the loading platform 1 under labor saving. Therefore, a pair of left and right pantograph type lifting devices 19, 19 mounted on the free end sides of the front and rear horizontal elastic bodies 5a, 5c and 5b, 5d.
Connects the lower frame body 20 and the upper frame body 21, which are long in the front-rear direction, to each other via two lift arms 22 and 23 pivotally connected to each other in a cross shape, and the upper end side of one lift arm 22 is an upper part. A slide roller 24 pivotally attached to the frame body 21 and pivotally mounted on the lower end side is formed so as to roll in the front-back direction along the lower frame body 20, and the lower end of the other lift arm 23 is a lower frame body. A slide roller 25 pivotally attached to the shaft 20 and pivotally mounted on the upper end side is configured to be able to roll in the front-rear direction along the upper frame 21. 26
Is a hydraulic cylinder that connects the lower frame body 20 and one lift arm 22, and moves the upper frame body 21 up and down by the operation of the hydraulic cylinder 26 to raise and lower the self-propelled transport vehicle 2 horizontally. The configuration other than that is the same as the configuration of the first invention.

[0022]

Since the present invention is constructed as described above, it has the following effects. In the stacking and unloading device for a self-propelled transport vehicle according to claim 1, a horizontal telescopic body that is telescopically moved in horizontal directions opposite to each other by the operation of the telescopic moving device is provided on the front and rear side portions of the traveling device disposed on both left and right sides. Due to the expansion and contraction movement function and the lifting and lowering function of the pillar that is vertically moved by the operation of the pillar lifting device provided on the free end side of the horizontal elastic body, the weight of the self-propelled carrier as a whole is saved. Whether it can be easily and quickly lifted up and down to be stacked on the bed of a carrier such as a truck, or can be easily unloaded, a horizontal telescopic body equipped with a column lifting device is used when the self-propelled carrier travels. It is possible to prevent the work efficiency of the self-propelled transport vehicle from being lowered by storing it in one side in a reduced size.

In the stacking and unloading device for the self-propelled transport vehicle according to the second aspect of the present invention, the rotational overhanging action of the overhanging body pivotally attached to the front and rear side portions of the traveling devices arranged on the left and right sides, and the overhanging action of the overhanging body. With the lifting and lowering action of the pillar that is vertically moved by the operation of the pillar lifting device provided at the free end side, the entire heavy-duty self-propelled carrier can be quickly and safely lifted with labor saving.
Permitting it to be easily stacked or unloaded on the bed of a truck such as a truck, or when the self-propelled truck travels, the overhanging body is rotated to be stored on one side of the traveling device and self-propelled. It is possible to prevent the work efficiency of the vehicle from decreasing.

According to another aspect of the present invention, in the stacking and unloading device for a self-propelled transport vehicle, the horizontal movements of the traveling devices disposed on the left and right sides are made to extend and retract in opposite horizontal directions by the operation of the extension and movement device. Labor saving of the heavy self-propelled transport vehicle due to the telescopic movement of the telescopic body and the vertical elevating operation by the operation of a pair of pantograph type elevating devices installed on the free end side of the horizontal telescopic body It is possible to quickly and safely elevate and lower under the conditions of loading and unloading on the bed of a truck or other carrier, or to unload it, but a pair of pantograph-type lifting devices is installed when the self-propelled carrier is running. Further, the horizontal telescopic body can be retractably stored in one side of the traveling device to prevent the work efficiency of the self-propelled transport vehicle from being lowered.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a stacking and unloading device for a self-propelled vehicle according to a first invention.

FIG. 2 is a layout plan view of a telescopic moving device for a horizontal telescopic body.

FIG. 3 is a schematic work side view when the self-propelled transport vehicles are stacked on the bed.

FIG. 4 is an overall perspective view of a stacking and unloading device for a self-propelled vehicle according to a second invention.

FIG. 5 is an enlarged perspective view of a main part.

FIG. 6 is a partially cutaway perspective view of a stacking and unloading device for a self-propelled carrier according to a third invention.

FIG. 7 is a plan view of the same.

[Explanation of symbols]

 3,3 Traveling device 5a, 5b, 5c, 5d Horizontal telescopic body 7a, 7b, 7c, 7d Strut lifting device 8a, 8b, 8c, 8d Strut 10a, 10b, 10c, 10d Overhanging body 15 Rotating shaft 19, 19 Pantograph Lifting device

Claims (3)

[Claims] 1. A horizontal telescopic body provided with self-propelled vehicles equipped with traveling devices on both left and right sides, and capable of telescopic movement in opposite horizontal directions by telescopic moving devices on front and rear sides of the left and right traveling devices. And a column elevating device for lifting and lowering the entire self-propelled transport vehicle on the free end side of each of the horizontal telescopic bodies, a stacking and unloading device for the self-propelled transport vehicle. 2. A self-propelled transporting vehicle having traveling devices on both left and right sides is provided, and a base end side of a rotatable overhanging body is pivotally attached to front and rear side portions of the traveling devices on both left and right sides, A stacking and unloading device for a self-propelled carrier, wherein a column elevating device for raising and lowering the entire self-propelled carrier is provided on the free end side of each of the projecting bodies. 3. A horizontal telescopic body provided with self-propelled carriers equipped with traveling devices on both left and right sides, and telescopically movable in opposite horizontal directions by telescopic moving devices on front and rear sides of the left and right traveling devices. And a pantograph-type lifting device for vertically adjusting the entire self-propelled carrier is attached to the free end sides of the left and right front and rear horizontal telescopic bodies, respectively. .