JPH0312609Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The invention consists of a base connected to the rear of a receiving frame on which the front running wheels are supported in a manner that it can be raised and lowered; A rear running wheel is disposed, and an elevating operation means for raising and lowering the cargo receiving frame is provided, and a raising and lowering operating means is provided between the cargo receiving frame and the base for raising and lowering the front running wheel in accordance with the elevating and lowering operation of the cargo receiving frame. This invention relates to a low-floor heavy goods transport vehicle.

(2) Prior Art Conventionally, in such a transport vehicle, after a receiving frame is inserted into a pallet on which a heavy object is placed, the receiving frame is raised and the pallet is transported.

(3) Problems that the invention attempts to solve By the way, the above-mentioned transport vehicle does not allow for items that easily roll,
For example, multiple drums may be stacked and transported, but in order to prevent the drums from rolling off during transport, the transport vehicle must be moved at low speeds with great care.

The present invention was proposed in view of the above, and when placing a cylindrical load such as a drum can that easily rolls on a receiving frame, it can reliably prevent the roll and accurately transport it, and is It is an object of the present invention to provide a low-floor heavy goods transport vehicle that can perform the same transport function as before without any problems even when loading a load of 1000 yen.

B. Structure of the device (1) Means for solving the problem In order to achieve the above object, the present device has a base connected to the rear of a cargo receiving frame in which the front running wheels are supported in a manner that the front running wheels can be raised and lowered. is provided with a rear running wheel and an elevating operation means for raising and lowering the receiving frame, and between the receiving frame and the base is an undulating means for raising and lowering the front running wheel in accordance with the elevating operation of the receiving frame. In a low-floor heavy goods carrier provided with an actuating means, the receiving frame is provided with a pair of front and rear rolling prevention bars for preventing rolling of a cylindrical load on the receiving frame, at the front and rear ends of the receiving frame. It is characterized by being removably installed upright close to each end.

(2) Function The rolling prevention rod standing up from the upper surface of the receiving frame effectively prevents cylindrical cargo such as drums from rolling on the receiving frame, so that it is possible to prevent such cylindrical cargo from rolling off. The cargo can be transported relatively quickly and accurately without special precautions. Furthermore, the rolling prevention rods are arranged close to the front end and the rear end of the loading platform, respectively, so that a wide mutual interval between the front and rear rolling prevention rods is ensured, so that a cylindrical structure that can be transported at one time is secured. The total number of cargoes can be increased.

Further, by removing the rolling prevention rod from the loading platform, the entire top surface of the loading platform can be effectively used as a loading surface, as in the past.

(3) Embodiment An embodiment of the present invention will be explained below with reference to the drawings. First, in Fig. 1, this transport vehicle 1
, a pair of cargo receiving frames 2, 2 parallel to each other, front running wheels 3, 3 each supported on each receiving frame 2, 2 so as to be able to rise and fall, and, for example, three caster type rear running wheels 5, 5, 5 and both receiving frames 2, 2.
a base 6 connected to a connecting frame 4 whose rear parts are integrally connected; a lifting actuator 7 provided on the base 6 for raising and lowering the connecting frame 4, that is, both load receiving frames 2; Receiving frame 2, 2
The vehicle is provided with a base 6 and a raising/lowering operation means 8 provided between the load receiving frames 2, 2 to raise and lower both the front running wheels 3, 3 in accordance with the lifting/lowering operation of the load receiving frames 2, 2. Further, an operating handle 9 is detachably attached to the connecting frame 4.

In FIG. 2, both cargo receiving frames 2, 2 have a substantially U-shaped cross section perpendicular to their longitudinal direction, are arranged in parallel with their open ends facing downward, and their rear portions are connected to the connecting frame 4. are integrally connected.
Moreover, slopes 10, 10 which are inclined upwardly toward the front are provided on the lower surface of the front end of each cargo receiving frame 2, 2, respectively, so that the front end of each cargo receiving frame 2, 2 faces forward. It is formed so that its thickness becomes smaller as the thickness increases.

A guide tube 11 is installed between the intermediate portions of these receiving frames 2, 2, and both ends of a rotating shaft 12 inserted through this guide tube 11 are rotatable by both receiving frames 2, 2. supported by. One end of support arms 13, 13 is fixed to both ends of the rotation shaft 12 in each cargo receiving frame 2, 2, and each support arm 13, 1
Front running wheels 3, 3 are each pivotally supported at the other end of 3. Therefore, by rotating the rotation shaft 12, the front running wheels 3, 3 are raised and lowered.

The connecting frame 4 integrally connects both cargo receiving frames 2, 2 and extends upward, and the upper end of the connecting frame 4 has an upper plate 1 that projects rearward.
4 are integrally fixed.

A flat base 6 is arranged below the upper plate 14, and three caster type rear running wheels 5, 5, 5 are attached to this base 6.

Referring also to FIG. 3, the lifting/lowering operation means 7 is
A hydraulic cylinder 1 is erected on a base 6 and has a piston rod 16 connected to an upper plate 14 of a connecting frame 4.
7, and a hydraulic cylinder 18 erected on the base 6 on the side of the hydraulic cylinder 17. In this lifting/lowering operation means 7, the hydraulic cylinder 18 functions as a hydraulic operation source, and the ram 1 of this hydraulic cylinder 18
9 is pressed downward, hydraulic pressure acts on the hydraulic cylinder 17, the piston rod 16 is extended, and the connection frame 4 is raised. This state is maintained by a check valve (not shown) interposed between both hydraulic cylinders 17 and 18. Further, the ram 19 is biased upward by a spring, and returns to its original state when the pressing force is released. Furthermore, the hydraulic cylinder 17
To release the extended state of the connecting frame 4, it is sufficient to open the on-off valve (not shown), and the hydraulic pressure is accordingly released, the hydraulic cylinder 17 contracts, and the connecting frame 4
descends.

In order to operate such a lifting/lowering operation means 7,
A pedal 21 is pivotally supported at the upper end of a support arm 20 erected on the base 6, and the intermediate portion of this pedal 21 is connected to the tip of a swinging rod 23 via a connecting rod 22. The base end of the swinging rod 23 is pivotally connected to the upper end of a column 24 erected on the base 6.
The ram 1 in the hydraulic cylinder 18 is located in the middle of the hydraulic cylinder 18.
A pressing piece 25 that comes into contact with the upper end of 9 is pivotally mounted. In such a configuration, when the pedal 21 is pressed down, the pressing piece 25 is pressed down via the swinging rod 23, and therefore the ram 19 is pressed downward.

The raising/lowering actuating means 8 includes a pair of actuating rods 26, 26 each having one end connected to the supporting arms 13, 13 of both front running wheels 3, 3 and extending rearward within each cargo receiving frame 2, 2, and a connecting frame. a pair of connecting rods 28, 28, one end of which is fixed to a shaft 27 rotatably supported at both ends thereof, and the other end of which is pivotally connected to the rear ends of the operating rods 26, 26; It consists of a pair of swinging rods 29, 29, one end of which is fixed to the shaft 27 and the other end of which is pivotally connected to the base 6.

In this raising and lowering operation means 8, the shaft 27 rotates clockwise in FIG. rotates toward the front. Therefore, in response to the upward movement of the connecting frame 4, the front running wheels 3, 3 are displaced forward, and the height of the cargo receiving frames 2, 2 is increased.

A handle 30 made of a round bar is fixed to the upper plate 14 of the connecting frame 4 along its rear edge.
This handle 30 is used for lifting and pushing down the rear part of the connecting frame 4, that is, the cargo receiving frames 2, 2.

Each cargo receiving frame 2 is provided with a pair of front and rear mounting holes 31 and 32 adjacent to its front end and rear end, respectively. Into these mounting holes 31 and 32, the lower ends of a pair of front and rear rolling prevention rods 34, which stand up from above the receiving frame 2 and prevent rolling of cylindrical cargo such as drum cans 33, are inserted and removed, respectively. has been done. That is, the lower end of each rolling prevention rod 34 has a stepped portion 3.
A small diameter portion 36 is provided through the stepped portion 3.
The rolling prevention rod 34 is attached to each cargo receiving frame 2, 2 by inserting the small diameter portion 36 into the mounting holes 31, 32 so as to make the small diameter portion 5 contact the upper surface of each cargo receiving frame 2, 2.

Next, to explain the operation of this embodiment, when transporting a heavy load, both receiving frames 2, 2 are inserted into a single-sided pallet on which the heavy load is placed.
It is sufficient to raise the receiving frames 2, 2 and tow the pallet with the operating handle 9 while the pallet is floating above the floor surface.

Further, when transporting the drum can 33, the transport vehicle 1 may be towed with the rolling prevention rod 34 attached to the receiving frames 2, 2.

In the above embodiment, the transport vehicle 1 is described as having a pair of receiving frames 2, 2, but the present invention can also be implemented for a transport vehicle having a single receiving frame and used in pairs. be.

C. Effect of the invention As described above, according to the invention, the receiving frame is provided with a pair of front and rear rolling prevention bars at the front and rear ends of the receiving frame to prevent the cylindrical cargo from rolling on the receiving frame. Since the rolling prevention rods are removably installed in close proximity to the receiving frame, it is possible to effectively prevent a cylindrical load such as a drum can from rolling on the receiving frame by the rolling prevention rod standing up from the upper surface of the receiving frame. Therefore, it is possible to accurately transport such cylindrical cargo at relatively high speed without paying special attention to preventing it from rolling off, and this can greatly contribute to improving the efficiency of transporting this type of cargo. . Moreover,
Since the rolling prevention rods are arranged close to the front and rear ends of the receiving frame, it is possible to secure as wide a mutual interval as possible between the front and rear rolling prevention rods, so that the rolling prevention rods can be placed on the receiving frame once. The total number of cylindrical loads that can be loaded and transported can be increased, and the transport efficiency can be improved.

Furthermore, if the rolling prevention bar is removed from the cargo receiving platform, the entire top surface of the cargo receiving platform can be effectively used as a cargo receiving surface, so even if the rolling prevention bar is specially installed, it will not interfere with the normal transportation of cargo. There is no possibility that this will happen.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a cross-sectional view taken along the line -- in FIG. be. DESCRIPTION OF SYMBOLS 1... Transport vehicle, 2... Receiving frame, 3... Front running wheel, 5... Rear running wheel, 6... Base, 7... Lifting operation means, 8... Lifting operation means, 31, 32 ……
Attachment hole, 33... Drum can as a cylindrical cargo,
34...Rolling prevention bar.

Claims (1)

[Scope of utility model registration request] A cargo receiving frame 2 in which a front running wheel 3 is supported so as to be able to rise and fall.
A base 6 is connected to the rear part of the base 6, and a rear running wheel 5 is disposed on the base 6, and an elevating operation means 7 for raising and lowering the cargo receiving frame 2 is disposed, and the space between the cargo receiving frame 2 and the base 6 is disposed. In this low-floor heavy goods transport vehicle, the cargo receiving frame 2 is provided with a raising/lowering operation means 8 for raising and lowering the front running wheels 3 according to the lifting/lowering operation of the receiving frame 2. A pair of front and rear rolling prevention bars 3 for preventing the rolling of the shaped cargo 33
4 are removably installed in the vicinity of the front end and the rear end of the cargo receiving frame 2, respectively.