JPS61169342A - Heavy duty machine tightener - Google Patents

Abstract

PURPOSE:To perform transportation and loading/unloading of heavy duty machine more easily and safety by arranging mechanisms for interlocking the fixing metal slidable smoothly in guide mechanism with a hydraulic cylinder at four positions on the rear body. CONSTITUTION:The upper frame of truck chassis is bored to secure a hydraulic cylinder 2. Then two C-shaped rails 3 are secured in parallel on the extended line of the cylinder 2 through such gap as approximately same with the diameter of the foot section 7 of caterpillar fixing metal 7. The metal 4 for fixing the head section of hydraulic cylinder will slide in two rails 3 while a hole for inserting the foot section 7 is made in the center. A gap 9 for sliding the neck section 6 of caterpillar fixing metal is made through the rear body board on the reciprocal stroke of said metal 4. Said systems are arranged as a set in front and rear of the rear body and two sets are arranged symmetrically while shifting by the diameter of the cylinder 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to tightening of heavy equipment such as self-loaders and trailers during transportation of heavy equipment having caterpillars, such as bulldozers and power sitabels.

Conventionally, when transporting heavy equipment using a self-loader or trailer, the main method was to put pawls on the front and rear of the caterpillars, tie them with wire ropes, chains, etc., and tighten them with a load tightening machine. However, due to the nature of the cargo, there was a lot of mud, dirt, filth, etc. adhering to it, making it a labor-intensive and difficult task to complete the binding.

For this reason, when transporting items over short distances or when only loading and unloading is required, the reality is that items are rarely transported without being fastened. As a result, skidding and falling accidents at curves while driving and rollover accidents during loading and unloading have become major problems.

An object of the present invention is to provide a heavy machinery tightening machine that can transport, load and unload heavy machinery more easily and safely.

The following is a description of the device mounted on a self-loader.

FIG. 1 is a partially cutaway front view showing a first embodiment of the present invention, and FIG. 2 is a perspective view showing the first embodiment. Drill a hole in the truck chassis upper frame (1) and fix the hydraulic cylinder (2).

On the extension of the hydraulic cylinder (2), two U-shaped rails (3) are placed facing each other on the caterpillar fixing bracket leg (7).
) The mounting brackets (4) for the hydraulic cylinder head, which are fixed parallel to each other with an interval equal to the diameter of the cylinders, slide smoothly within these two U-shaped rails (3) and are free from play. Make a rectangular shape with a small size, and make a hole in the center into which the caterpillar fixing bracket leg (7) will be inserted.

A gap (9) is created in the loading platform board on the reciprocating stroke of the mounting bracket (4) so that the caterpillar fixing bracket neck (6) can smoothly slide. Place similar ones at the front and rear of the loading platform to make one set, and then shift them by the diameter of the hydraulic cylinder (2) to make two symmetrical sets, making a total of four locations.

The length of the head of the caterpillar fixing bracket (5) is longer than the distance between the front and rear hydraulic cylinders and shorter than the total length of the loading platform, and the neck (
6) and leg portions (1) are provided respectively.

The length of the neck (6) is the length from the top surface of the mounting bracket (4) to the top surface of the loading platform, and the length of the leg (7) is the length from the top surface of the mounting bracket (4) to the top of the loading platform.
) and insert the C slip-out prevention pin (8) into the tip.
Make it long enough to insert.

The legs (7), which insert this caterpillar fixing bracket into the holes of the front and rear mounting brackets (4) from the front and rear gaps (9) on the loading platform, penetrate the mounting brackets (4) and are shaped like two U-shapes. Put the tip out into the gap between the rails (3) and insert the anti-slip bottle (8) there.

In order to operate the hydraulic cylinders, a hydraulic pulp switch is provided for each hydraulic cylinder separately, so that each cylinder can be operated independently, and if simultaneous operation is required, each hydraulic valve switch must be operated.

When using this, as shown in Figure 3, if the heavy equipment to be loaded is small, operate the hydraulic pulp switch to adjust the spacing between the caterpillar fixing bracket heads (5) to be slightly larger than the full width of the caterpillar 01 of the heavy equipment. Spread it out, stop the heavy equipment at an appropriate position on the loading platform, operate the hydraulic valve switch, and retract the hydraulic pressure/rinder until the caterpillar fixing bracket head (5) and the caterpillar 01 come into close contact.

The opposite is true when getting off the train. In addition, if the heavy equipment to be loaded is large, make the interval between the caterpillar fixing bracket heads (5) slightly narrower than the interval between the caterpillar U, stop the heavy equipment at an appropriate position on the loading platform, and operate the hydraulic pulp switch. , extend the hydraulic cylinder and attach the caterpillar fixing bracket head (5) and the caterpillar 0.
[Place and tighten 1.

This first embodiment can be used for almost all S and M sizes, from large to small.

In addition, since the length of the caterpillar fixing bracket head (5) can be made to be the same as the overall length of the loading platform, it acts as a guide when loading and unloading, preventing unbalanced loads, and preventing mud from adhering to the loading platform or when the loading platform is slippery during rain, snow, or ice. Effective in preventing falls.

FIG. 4 is a front sectional view of a caterpillar fixing fitting showing a second embodiment. As shown in the figure, if the cross section of the head (11) is tapered, when pressed against the caterpillar σa,
The action of sandwiching the caterpillar αa between the head 1+11 and the loading platform surface further increases the tightening effect.

However, if the total length of the head (11) is longer than the caterpillar grounding of the loaded heavy equipment, the head (11) will collide with the front and rear windings of the caterpillar, so even if it is pressed any further, no pinching effect will occur. Therefore, it is not suitable for tightening small heavy machinery. Also, since the head (I!) cannot be very long, it is not suitable as a guide during loading and unloading.

FIG. 5 and FIG. 6 are a front sectional view and an operational view of a caterpillar fixing fitting showing a third embodiment.

This is a product that has a tapered head (total length of the river is approximately the same as the total length of the loading platform) and is used by fitting the wedge fitting (13) into it. Using the head +131 as a guide, ride and stop the heavy equipment at an appropriate position on the loading platform, operate the hydraulic valve switch, and insert the caterpillar (1G) into the gap where the wedge fitting (13) is inserted into the head (I21). Leave an interval.

Then, fit the wedge fitting (13) into the head t+21 corresponding to the front part of the four corners of the caterpillar αα,
When the hydraulic valve switch is operated and the track is pressed against the caterpillar qα, the wedge fitting (13) and the loading surface create an action of sandwiching the caterpillar (1 (l)), completing the tightening.

The opposite is true when getting off the train.

In addition, if a convex waveform (+41) with a regular pitch is formed on the side surface of the head (12), and a concave (15) with a regular pitch that engages with the convex part (+41) is formed on the wedge metal fitting +131, it is possible to prevent sudden braking or sudden start. It is more effective against the force in the longitudinal direction.

In the first and third embodiments, the caterpillar fixing bracket head (
5) and (river side, in the third embodiment, wedge fittings (
If anti-slip unevenness is formed on the side surface of the 1310, that is, the surface directly facing the caterpillar αα, the friction against the force in the front and back direction will be increased, which will be more effective.

As shown in FIG. 7, if a band-shaped rubber piece (16) is attached to the head of the caterpillar fixing fitting on the tangent to the loading platform surface, it will slide smoothly without getting pebbles or dirt stuck in it. Furthermore, by using a neck (17) that is offset from the center, the range of movement can be changed by shifting the legs and head.

FIGS. 8 and 9 are front sectional views showing the hook of the fourth embodiment and an example of its use. A grip part (18) is provided in the neck part of the caterpillar fixing bracket, and the leg parts (19) are made several centimeters longer to create a groove for hooking the wire rope. Yes, by hooking the end of a wire rope, etc. that is hung over a load between the grooves of the hook and compressing the hydraulic cylinder, it can be used as a load tightening machine, and can also be used for tightening lumber, boxes, etc. in addition to heavy machinery.

10 and 11 are a cutaway side view and a partially cutaway front view showing a fifth embodiment in which a hydraulic motor or an electric motor is used in place of the hydraulic cylinder (2). Two opposing U-shaped rails with one wider than the other +3
11211 in parallel, slides smoothly while sleeping, and has a large rectangular mounting fixture with no play.
Drill a hole for inserting the leg of the caterpillar fixing bracket and a screw hole for passing the threaded shaft (2), and attach a threaded shaft (3) that has a thread that engages with the screw hole to the mounting bracket.
One end is fixed in a rotatable state by passing it through the screw hole, and the other end is fixed in a rotatable state in conjunction with the hydraulic motor or electric motor 4) fixed in the chassis upper frame (1). Hydraulic motor or electric motor 1
By rotating 24), the associated threaded shaft 2) also rotates, and the mounting bracket @2) moves. The effect is the same as using a hydraulic cylinder, but it is suitable for trucks that do not have space for a hydraulic cylinder or hydraulic equipment.

The present invention has the above-mentioned configuration, and can be tightened much more easily and in a shorter time than the conventional methods of fastening wire ropes with load tightening machines or pawls such as square timbers. . This is a heavy equipment tightening machine that has a guiding function during loading and unloading.

[Brief explanation of drawings]

FIGS. 1, 2, and 3 are a partially cutaway front view, a perspective view, and an example of use of the first embodiment. FIG. 4 is a front sectional view of the caterpillar fixing fitting of the second embodiment. FIGS. 5 and 6 are front sectional views of the caterpillar fixing fitting of the fifth embodiment and explanatory views of its operation. Figure 7 shows an example of the caterpillar fixing fittings. FIGS. 8 and 9 are a front view and a cutaway front view of the hook of the fourth embodiment. FIG. 10 and FIG. 11 are a partially cutaway side view and a partially cutaway front view showing the fifth embodiment. 1... Tiger, chassis upper frame 2... Hydraulic cylinder 321... U-shaped rail 422... Mounting bracket 51112... Caterpillar fixing bracket head 617...
Caterpillar fixing bracket neck 719... Caterpillar fixing bracket leg 8... Pin 9... Gap 10... Caterpillar 13... Wedge fitting 14... Convex 15... Concave 16... Rubber piece 18...Grip 20...Groove 23...Threaded shaft

Claims (1)

[Claims] 1 Fix the hydraulic cylinder under the loading platform, and on its extension,
A heavy machine with a guide mechanism, a mechanism in which a hydraulic cylinder is linked with a mounting bracket that slides smoothly inside the guide mechanism, is placed at four locations, and the caterpillar fixing bracket is inserted into the mounting bracket from above the loading platform. Tightening machine.