JPS6042156B2 - How to pull in objects outside the working radius of the retsuking boom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for retracting an object outside the working radius of a retshing boom in a retrieval vehicle. It is equipped with a hook block with a pulley suspended from the boom, and a winch for hoisting and lowering the hook block.

Conventionally, in this type of retouching vehicle, when attempting to pull in an object outside the working radius of the retsking boom, a separate winch exclusively for retraction was installed on the body of the retouching vehicle, and this was used to pull it in, or The hook block suspended from the tip of the ripping boom is pulled out to the outside of the working radius of the ripping boom and hooked onto the object to be pulled in. However, when doing the former, it is necessary to install a special winch on the vehicle body, which has the disadvantage of not only increasing the weight of the car but also making it expensive. Although the existing winch can be used, the point where the reaction force is applied during retraction is at the tip of the retsuking boom, which is at a high place, which causes a large overturning moment to act on the retsuker vehicle, which has the disadvantage that sufficient retraction force cannot be secured. It was hot. The present invention aims to provide a method for retracting an object located outside the working radius of a retching boom, which eliminates the drawbacks of the prior art described above. That is, the present invention provides a retrieval vehicle having a retrieval boom mounted on the vehicle body such that it can be raised and rotated freely, and a winch for hoisting up and lowering a first hook block having a pulley suspended from the retrieval boom. A first hook block is installed and fixed on the car body by a fixing device, and a wire rope that is fed out from the winch and wrapped around the pulley at the tip of the wrecking boom and the pulley of the first hook block in order is further extended to attach the second hook. Relating to a method of retracting an object outside the working radius of a wrecking boom, the method comprises: hooking a second hook block around a block, hooking a second hook block onto a workpiece, and pulling in the workpiece by winding the winch. It is something.

According to the method of the present invention, although an existing winch can be used to pull in an object that is outside the working radius of the wrecking arm, the position where the pulling reaction force acts during pulling is at the tip of the wrecking boom. Since the first hook block is fixed on the vehicle body at a lower position than the first hook block, the overturning moment acting on the towing vehicle can be suppressed as low as possible, and a large pulling force can be secured accordingly.

The present invention was invented in such a way that it is possible to carry out a simple and reliable pulling operation without using such a dedicated winch device, by using only a few existing parts of a retrieval vehicle. Examples will be described below.

In Fig. 1 and Fig. 2, 1 is the body of the towing car, 2 is the tossing boom, 3 is the swivel base, 4 is the raising cylinder, and 5
1 is a hook block having a pulley, 6 is a pulley at the tip of the towing boom 2, 7 is a wire robe, and 10 is a winch, and each of the above components is a common necessary part that all ordinary towing vehicles have. Further necessary parts to be added in the present invention are a fixing device 8 for the first hook block 5 and a second hook block 9 for hooking onto the workpiece. The fixing device 8 is for fixing the hook block 9 on the vehicle body 1.
1, a fixing metal fitting 83 for fixing the block body 52, a holding plate 84, a nut 85, and a mounting bracket 86.

Next, the action will be explained.

Fixation device as shown in Figure 2. 8, the first hook block is fixed on the vehicle body, and the wire robe 7 that has been wrapped around the first hook block is further let out and wrapped around the second hook block 9, and the cable end 71 is fixed to the first hook block 5. Then, when the second hook block 9 is hooked to the accident vehicle and the winch 10 is driven, the accident vehicle is pulled toward the towing vehicle. In this way, depending on the length of the wire lobes 7, it is possible to pull an accident vehicle from any distance, and there is no need to use a special winch to do so.

In the drawings showing this embodiment, the fixing device 8 is provided at the upper rear end of the vehicle body, but it may also be provided at the upper side of the vehicle body, and it goes without saying that in this case it is convenient for pulling in from the side.

As explained above with reference to the embodiments, the method for retracting an object outside the working radius of the reversing boom of the present invention simply requires the fixing device 8 for fixing the first hook block 5 onto the vehicle body 1, and the retracting boom. Objects that are outside the working radius of the towing boom 2 can be pulled in only by preparing the second hook block 9 of Since the first hook block is fixed on the vehicle body lower than the tip, the overturning moment acting on the tow truck during retraction can be suppressed to a low level, and as a result, sufficient retraction force can be secured.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the structure of a retsu car used in the present invention;
FIG. 2 is a state diagram of the present invention during use.

Claims (1)

[Claims] 1. In a retrieval vehicle having a retrieval boom mounted on the vehicle body so as to be adjustable in elevation and rotation, a first hook block having a pulley suspended from the retrieval boom, and a winch for hoisting and lowering the first hook block, The hook block is installed and fixed on the vehicle body by a fixing device, and the wire rope that is sequentially wrapped around the pulley at the tip of the retsking boom let out from the winch and the pulley of the first hook block is further extended to form the second hook block. , hook the second hook block onto the workpiece,
A method for retracting an object outside the working radius of a wrecking boom, characterized in that the workpiece is pulled in by winding the winch.