JPS6323438Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a load stabilizer device that is installed on a forklift truck to stabilize a load on a fork.

Prior Art A conventional road stabilizer device includes a stabilizer mast 170 as shown in FIG. 8, which is detachably attached to a finger bar 16, and a finger bar 160 provided in front of the stabilizer mast 170 to which a fork 15 is attached. There are two types: the on type and the direct type in which the stabilizer mast 270 is welded to the lift bracket 13 as shown in FIG. The above-mentioned hook-on type can be used as a general forklift truck by removing the stabilizer device B, but the distance from the center of the front wheels to the center of gravity of the load becomes long, making cargo handling operations unstable. C cannot be attached or detached, and when used as a general forklift truck, it has the disadvantage of poor cargo handling efficiency.

Purpose of the invention The purpose of the present invention is to eliminate the above-mentioned drawbacks, and is to provide a road stabilizer device that is easy to attach and detach and does not cause instability of the vehicle.

Structure of the invention In order to achieve the above object, a hanger is provided in the upper part of the lift bracket of the elevating member, and a lock hole is provided in the lower part, and a stabilizer mast with a U-shaped cross section for the load stabilizer is provided with a hook that can be suspended from the hanger. A locking device including a locking pin biased by a spring to fit into the locking hole is provided, the stabilizer mast is removably installed between a pair of vertically parallel lift brackets, and the stabilizer mast is installed along the stabilizer mast. The frame is designed to be able to be raised and lowered.

Embodiments Hereinafter, the present invention will be described in detail based on illustrated embodiments.

In the figure, a pair of left and right masts 1 is an outer mast 2 that is attached to the front end of the vehicle so that it can tilt forward and backward.
and an inner mast 3 that is moved up and down by the outer mast 2 via lift rollers 4. Two lift cylinders 7 for raising and lowering the lift bracket
are arranged one behind each of the left and right masts 1, and are erected on a lower cross beam 5 that connects the lower ends of the outer masts 2.
The upper end of the piston rod 8 is the inner mast 3
Atsupata tie beam 6 connecting the upper ends of the
As a result, a space 9 is formed between the left and right masts 1. In addition, chain wheels 10 are attached to the bottom surface of both ends of the Atsupata tie beam 6.
is attached via the wheel bracket 11,
One end of the lift chain hung on each chain wheel 10 is fixed to the lift cylinder 7, and the other end is fixed to the lift bracket 13. The lift bracket 13 that constitutes a part of the elevating member is
It is attached to the inner mast 3 via a lift roller 14 so as to be able to move up and down, and on its front end surface, a finger bar 16, which forms part of a lifting member for engaging and supporting a fork 15, is located close to the side surface of the mast 1. It is fixed.

A pair of vertically parallel lift brackets 13
A load stabilizer device A is installed between them, and the load stabilizer device A includes a pair of left and right stabilizer masts 1 each having a U-shaped cross section.
7, and the stabilizer mast 17 is connected by a lower beam 18 and an upper beam 19. A pair of left and right hangers 20 are fixed to the inner upper part of the lift bracket 13, while a pair of left and right hooks 21 that can be suspended from the hangers 20 are fixed to the lower beam 18, and the stabilizer inside the space 9 is fixed to the lower beam 18. The mast 17 is housed and suspended from the hanger 20. Also,
A lock hole 32 is provided in the lower part of the lift bracket 13 as shown in FIGS. 6 and 7, and a lock pin that can be fitted into the lock hole 32 is provided in the stabilizer mast 17 at a position opposite to the lock hole 32. A pair of left and right locking devices 34 with 33 are attached. The locking device 34 includes the locking pin 33 having a flange 35 approximately in the middle, and a cylindrical holder 36 that covers the locking pin 33.
a spring 37 that is loaded between the collar portion 35 and the holder 36 and urges the lock pin 33 to fit into the lock hole 32;
In Fig. 7, the guide groove 38 curves from the mounting surface of the holder 36 to approximately the middle part and rotates approximately 90 degrees to the right from the top, and the axis rotates leftward in a straight line from the 90 degree rotated position. A stop groove 39 carved to a position slightly passed through and the flange portion 35
A base 40 is fixed to the handle 41 and an operating lever 42 extends outward from the guide groove 38 . Note that 43 is a hole into which a finger or a tool is inserted when operating the handle 41. The holder 36 is fixed to the stabilizer mast 17 by bolts 44, and the lock pin 33 is fitted into the lock hole 32 with a loose fit through the through hole 45. 46 is a mast guide for guiding the stabilizer mast 17 into a state where the lock hole 32 and the lock pin 33 can be fitted. 47 is an interference member fixed to the lift bracket 13 so as to push up the operating lever 42 from below just before the hook 21 is suspended from the hanger 20.

A stabilizer frame 24 that is movable up and down and guided by guide rollers 23 is housed inside the stabilizer mast 17, and a support arm that extends forward and approximately horizontally is located approximately in the center of the upper surface of the stabilizer frame 24. The proximal end of the support arm 25 is connected to the support arm 25, and the fork 1 is connected to the front end of the support arm 25.
A presser plate 26 for holding down the cargo on the loader 5 is swingably supported via a pin 27. Brackets 28 and 29 are provided at the upper part of the stabilizer frame 24 and the lower part of the stabilizer mast 17.
A clamp cylinder 30 is connected to the bracket 29, and an end of a piston rod 31 is connected to the bracket 28.

The embodiment of the present invention has the above-mentioned configuration, and its operation will be explained next. When the load stabilizer device A is required for one forklift truck, the handle 41 of the locking device 34 is pressed with the finger or a tool is used. When the lever is turned approximately 90 degrees to the right along the guide groove 38 as shown in FIG.
is locked. Therefore, the load stabilizer device A is inserted into the space 9 from above the mast 1, and the load stabilizer device A is inserted along the mast guide 46.
When the lever 42 is lowered, the operating lever 42 is moved to the interference member 47 just before the hook 21 of the stabilizer mast 17 is suspended from the hanger 20 of the lift bracket 13.
The base 40 of the operating lever 42 is guided by the guide groove 38 and urged by the spring 37, so that the tip of the lock pin 33 is pushed into the lift bracket 13.
When the lock pin 33 comes into sliding contact with the lock hole 32, it is fitted into the lock hole 32, and at the same time, the hook 21 is suspended from the hanger 20.
Therefore, by connecting a hydraulic pipe (not shown) to the clamp cylinder 30, the load stabilizer device A becomes operable, and the load on the fork 15 can be held down.

If the load stabilizer device A is not needed, disconnect the hydraulic piping, pull the operating lever 42 toward you as shown in FIG. The state in which it is pulled out from the lock hole 32 of the lift bracket 13 can be maintained, and the load stabilizer device A can be easily removed from the lift bracket 13 by lifting it upward.

Although the illustrated embodiment shows one support arm 25, it is also possible to use a plurality of support arms 25.

Effects of the Invention As described above, the present invention has the structure described in the claims for utility model registration, so that the load stabilizer device can be moved from above into the space of the lift bracket at a position where the center of gravity of the load approaches the vehicle body. Just by inserting the truck, the hanger, hook, and locking device automatically operate, making it extremely easy to attach and detach the load stabilizer device, allowing one forklift truck to carry out cargo handling operations that require a load stabilizer device, as well as general forklift trucks. It has excellent responsiveness to lift truck cargo handling operations and is highly effective in improving cargo handling efficiency.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention. Figure 1 is a side sectional view of the load stabilizer device, Figure 2 is a plan view, Figure 3 is an exploded perspective view, and Figure 4 shows the hanger when it is locked. Fig. 5 is a state diagram of the hook and locking device; Fig. 5 is a state diagram of the hanger, hook, and locking device immediately before locking; Fig. 6 is a sectional view of Fig. 4; Fig. 7 is a sectional view of Fig. 5; 8 and 9 are side sectional views showing the prior art. 1... Mast, 9... Space, 13... Lift bracket, 17... Stabilizer mast, 18
...Lower beam, 19...Upper beam, 20
... Hanger, 21 ... Hook, 32 ... Lock hole, 33 ... Lock pin, 34 ... Lock device,
35... Flange, 36... Holder, 37... Spring, 38... Guide groove, 39... Stop groove, 4
0...Base, 41...Handle, 42...Operation lever, 43...Hole, 44...Bolt, 45...Through hole, 46...Mast guide, 47...Interference member, A...Load stabilizer device .

Claims (1)

[Scope of utility model registration request] In a forklift truck, in which two lift cylinders for raising and lowering a lifting member along the mast are arranged, one behind each of the left and right masts, a hanger is provided in the upper part of the lift bracket of the lifting member and a lock hole is provided in the lower part, A stabilizer mast with a U-shaped cross section for a road stabilizer is provided with a locking device that includes a hook that can be hung on the hanger and a locking pin that is biased by a spring so as to fit into the locking hole. A load stabilizer device for a forklift truck, wherein the stabilizer mast is removably provided between lift brackets, and a stabilizer frame is provided so as to be movable up and down along the stabilizer mast.