JPS58157699A - Forklift car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forklift vehicle used for cargo handling work by lifting heavy loads with forks, and particularly to a forklift vehicle that can load one main body onto another vehicle using its own blade.

2. Description of the Related Art In workplaces such as warehouses, factories, and business offices, forklift trucks have traditionally been used to transport, arrange, and stack heavy objects and pallets. This forklift truck can move on its own with its wheels pivoted, but its special feature is that it does not have the ability to travel at high speeds, so forklift trucks have to travel long distances from factory to factory and from warehouse to warehouse. When moving a ``IDI rack, etc.'', it was customary to place it on a mount and transport it. Only 1-
Because forklift trucks are quite large in size and heavy due to their counterweights, etc., they must be loaded using a KN crane or a special treadle in order to be able to load them onto the loading platform of a truck, etc. It was not only necessary to prepare the machine I for raising the pot, but also the work was troublesome.

In view of the above-mentioned drawbacks, the present invention separates the car body and fork mast, rotatably connects the car body and fork mast, and provides a rotation mechanism for rotating the car body with respect to the fork mast. To provide a forklift truck that can raise a loading platform KM.

An embodiment of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show the appearance of the forklift truck of this embodiment. This forklift truck is largely divided into a self-propelled vehicle body 1 and a fork mast 2, both of which are connected by a connection mechanism that will be described later. . A front wheel 3 is supported at the front of the lower part of the vehicle body 1, and a rear wheel 4 is supported at the rear of the lower part, and a seat 5 for a worker to sit on, a steering wheel 6 for changing direction, etc. are located at the upper part of the vehicle body 1. It is a provision. The above-mentioned fork mast 2 has a U-shaped arched structure, and its opposing struts 7
The interval between the inner walls of the vehicle body 1 is slightly larger than the width of the vehicle body 1, and a semicircular shaft attachment portion 8 protrudes from the rear base Kld of both struts 7. The protruding output shaft 9 is inserted and fixed. Further, a slit 10 is opened in the vertical direction on the front surface of each support column 7, and a connecting piece 11 is inserted through this slit 10.
An L-shaped fork 12 is fixed to the front part of the fork.

Next, FIG. 3 shows the drive system in this embodiment.
A hydraulic motor 13 is fixed to the center of the upper part of the fork mast 2, and an output shaft 14 extending to the top of each support column 7 projects from the left and right sides of the hydraulic motor 133. The sprocket wheel 15 is stuck. Further, a support shaft 16 is pivotally supported at the lower part of the support column 7, and a sprocket wheel 17 is also fixed to this support shaft 16, and a chain 18 is installed between both sprocket wheels 15 and 17. , the inner end of the chain 18 is connected to the aforementioned connecting piece llK.

A hydraulic motor 19 is provided at the center of the front part of the front vehicle body 1, and output shafts 9 project horizontally from the left and right sides of the hydraulic motor 19, with their tips positioned outward from the sides of the vehicle body 1. The above-mentioned shaft attachment portion 8 is connected and fixed to both ends VC. Next, at the center of the rear of the vehicle body 1 is a horizontally extended frame shaft 20.
A fixed position box 21 is fixed to the center of the rack shaft 20, which is rotatably supported by the rack shaft 20.
One end of 0 protrudes from the side of the vehicle body 10 and its end r (to which the sprocket wheel 22 is fixed), and the above-mentioned output shaft 9 has an inner part (4) from the outer diameter of the output shaft 23. A sprocket wheel 23 with a larger diameter is inserted concentrically, and this sprocket wheel 23 is fixed to the shaft attachment part 8 with a screw or the like, and both sprocket wheels 2
A chain 24 is wound between 2.23 and 2.23.

Next, the operation of this embodiment will be explained with reference to FIG.

In normal cargo handling work, the hydraulic motor 13 is operated in the state shown in FIG. 1, and the output shaft 14. sprocket wheel 1
5. Chain 18. The fork 12 is moved up and down along the support column 7 by the connecting piece 11, and the 12 forks lift the cargo. Then, with the luggage still being lifted, wheel 3,
4 is driven and operated to move the entire vehicle body 1 and transport the cargo to the designated location.

can be placed. This operation is no different from that of a normal forklift truck.

Next, when this forklift vehicle is mounted on a truck and transported over a long distance, the hydraulic motors 13 and 19 can be used alternately to lift the forklift vehicle onto the truck bed using its own blade.

First, the front of the forklift vehicle is brought completely close to the rear of the truck bed 25 (Fig. 4A). The hydraulic motor 13 is operated to raise the fork 12 via the chain 18, and the fork 12 is stopped at the same height as the inlet 26 opened at the rear of the horizontal loading platform 25, and the wheels 3.4 are driven. to insert the fork 12 into the conduction port 26 (see Fig. 4B).
). Next, when the hydraulic motor 13 is reversed and operated to lower the fork 12 relative to the strut 7, the fork mast 2 and the vehicle body rise relative to each other (Fig. 4C).
. The operation of the hydraulic motor 13 is stopped when the fork 12 continues to lower (lift the vehicle body 1) and the lower ends of the wheels 3 and 4 pivotally supported by the vehicle body 1 reach a point at approximately the same height as the soil surface of the loading platform 25. (Figure 4D).

Then, when the hydraulic motor 19 is operated and the output shaft 19 is rotated, the fork mast 2 remains in the vertical position because the fork 12 is fixed, and the hydraulic motor 19 side, that is, the vehicle body 1 is relatively connected to the output shaft 9. The vehicle body 1 is rotated to the left in the figure about , and the vehicle body 1 is loaded onto the truck bed 25 in an inverted state. At this time, since the sprocket wheel 23 is fixed to the shaft attachment part 8, it stops at that position (-), and since the chain 24 is pulled in accordance with the rotation of the vehicle body 1, the sprocket wheel 22 and the suspension shaft 20 and the vehicle body 1 are The fixed position box 2 is rotated in synchronization with the rotation.
The equipment stored in the fixed position box 21 is not likely to cause problems such as liquid leakage, and smooth operation cannot be guaranteed. Yes (Figure 4E).

In addition, when unloading the entire forklift truck from the loading platform 25 to the ground, the forklift truck can be unloaded from the loading platform with its own blade by operating in the order of E to A in reverse of the above-mentioned operations.

Since the present invention is configured like a d-child chain, there is no need to use special equipment for V- when stacking a forklift vehicle onto a truck bed, etc., and it can be stacked and unloaded with its own blade. , the operation is cumbersome and time consuming, and the forklift truck is extremely easy to transport.Even if the vehicle body is reversed, the necessary equipment is always in the same position, and there are no inconveniences caused by reversing. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a forklift truck showing an embodiment of the present invention, Fig. 2 is a side view of the same as above, Fig. 3 is a perspective view showing the drive system of the forklift car, and Fig. 4 is a complete operation diagram of the embodiment. FIG. 1... Vehicle body, 2... Fork mast, 9.
...Output shaft, 19...Hydraulic motor. Patent applicant Mitsuhiro Kishi Agent Patent attorney Tsuneaki Hibi Figure 1

Claims (1)

[Claims] A car body that can propel itself by supporting wheels at the bottom, a fork mast with a fork that moves the entire load up and down, the space between the inner walls of the pillars on both sides is slightly larger than the width of the car body, and the front part of the car body and the fork mast. A forklift vehicle characterized by comprising a connection mechanism that rotatably connects a base part horizontally on an axis, and a rotation mechanism that rotates the entire vehicle body with respect to a fork mast using this connection mechanism as a center of rotation.