JPS6014760B2 - Cargo handling equipment on forklift trucks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo handling device for a forklift truck equipped with a winch device.

In the conventional cargo handling device for the forklift truck, cargo handling parts such as a lift cylinder and a chain for raising and lowering the lift bracket are arranged in the center of the left and right masts that are erected at the front of the vehicle body. ,Also,
A winding section consisting of a winch drum, an oil motor, a speed reducer, etc. used in the winch device is arranged at the front part of the mast to avoid interference with the cargo handling parts.

That is, the winding section is mounted on the upper rear surface of the forward protruding arm of the winch arm attached to the center of the lift bracket. However, when a worker performs cargo handling work while watching from the driver's seat how the winch device is holding the cargo and how the cargo is being held by the tip of the fork attached to the front of the lift bracket,
The lift cylinder, the cargo handling parts such as the chain, and the winding section that stand in front of the driver's seat obstruct the forward view from the driver's seat, causing a significant drop in the efficiency of cargo handling work.

Additionally, the visibility ahead is poor, making it dangerous when the vehicle is running. The present invention solves the above-mentioned drawbacks by arranging the lift cylinder behind the mast to form a space between the left and right masts, and then attaching the lift cylinder to the back of the cross plate at the front of the lift bracket in the space. By arranging the winding section consisting of the winch drum, oil motor, reduction gear, etc. The present invention aims to provide a cargo handling device for a forklift truck with improved forward visibility from the driver's seat.

Embodiments of the present invention will be specifically described below with reference to the drawings.

In the figure, 11, outer mast la and inner mast l
A pair of left and right masts consisting of b.

The left and right outer masts la are connected at their upper and lower ends by upper cross beams la' and lower cross beams la'', respectively, and their lower ends are connected to the vehicle body 2.
It is supported at the front end of the front end so as to be movable in the front and back direction, and is moved back and forth by the tilt cylinder 3. The left and right inner masts lb are connected at their upper and lower ends by an upper tie beam lb' and a lower tie beam lb'', respectively, and are vertically movable via lift rollers 4 to the outer mast la.

The two IJ lifters 6 for raising and lowering the lift bracket 5 are placed behind the left and right masts 1 (they may be placed on the outside), and are placed on the lower cross beam neck a'' of the outer mast la. The chain wheel 8 is rotatably supported via a spindle 9 on a substantially U-shaped wheel support 7 fixed to the upper end of the piston rod 6a of the lift sill 6, and has one end attached to an outer mast la.
The end of the pond is fixed to the lift bracket 5, and the foot chain blade 0 is hung thereon. Further, a substantially U-shaped receiver 1 is slidably mounted on the wheel support 7 and is fixed to the upper end of the inner mast lb or to the top tie beam lb'. The bottom of the guide groove 11a formed in the side plate of the receiving body 11 is connected to the chain wheel 8.
By being engaged with the support shaft 9 of the inner mast tortoise b, the upward movement of the inner mast tortoise b is started. As described above, by arranging the lift cylinder 6, which is normally arranged between the left and right masts 1, behind the mast 1, a space 12 is formed between the left and right masts 1.

This space 12 includes a pair of left and right side plates 5b each rotatably supported at the upper and lower portions and provided with foot rollers 5a, and a cross plate 5c fixed horizontally to the front surface of the side plates 5b.
A foot bracket 5 is arranged, and the inner mast lb is disposed through the lift roller 5a.
It is raised and lowered by the lift cylinder 6 while being guided by.
The lift bracket 5 includes a winch device! 3 and fork turtle 4 are equipped. To explain this in more detail, the winch device turtle 3 includes a winch arm 28 and a winch drum 22 for winding the wire 2 around the outer peripheral surface.
and a winding section 25 comprising an oil motor 24 connected to the winch drum 22 via a reduction gear 23;
It is mainly composed of a guide roller 26 that guides the movement of the wire 21. As shown in FIGS. 2 and 3, the base of the winch arm 20' is attached to the front surface of the front cross plate 5c of the lift bracket 5, and guide rollers 26 are provided at the protruding tip and rear surface of the bent portion, respectively. It has. The winch drum 22
The bracket is rotatably supported by two holes attached to the back surface of the cross plate 5c at the front of the lift bracket, and a worm wheel 28, which is a component of the reduction gear 23, is glued to the shaft. . Also, like the winch drum 22, the oil motor 24 is attached to the back surface of the cross plate 5c, and has a worm 29, which is a component of the reduction gear 23, iron-bonded to its shaft end. The engagement between the worm 29 and the worm wheel 28 drives the winch drum 22 at a reduced speed. As is clear from the above, the present invention includes:
By arranging the lift cylinder behind the left and right masts, a space is formed between the left and right masts, and the winding of the winch drum, reduction gear, oil motor, etc. According to the present invention, in a conventional cargo handling device, obstacles such as a lift cylinder chain or the like that were standing in front of the driver's seat can be removed, and the windings, which were exposed to the outside, can be removed. The handle is housed in the back of the cross plate in the space, which not only improves the forward field of vision from the driver's seat, but also improves the efficiency of cargo handling operations. ``Furthermore, because the winding section is closer to the lower part of the vehicle body, the stability of the vehicle in the longitudinal direction is improved, and along with improved forward visibility, the vehicle can be driven with peace of mind.'' It has excellent effects.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and the first figure is a side view of a forklift truck in which the present invention is implemented.
The figures are a front view and a partially sectional plan view showing important parts, respectively. 1...Mast, 5...Lift bracket 6...Lift cylinder 12...Space, turtle 3...Winch device, 20...■Winch arm 22...Winch drum, 24...Oil Motor, 25... Winding section. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 Two lift cylinders for raising and lowering a lift bracket that moves up and down guided by a mast attached to the front of the vehicle body are arranged behind the mast to form a space between the left and right masts, A cargo handling device for a forklift truck, in which a winch arm is attached to the front surface of a cross plate at the front of the lift bracket in the space, and a winding section of the winch device is disposed on the back surface of the cross plate.