JPS6237764Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a towing connecting rod used when a towing vehicle tows an accident vehicle.

Conventionally, this type of towing connecting rod had a hook ring attached to the pintle hook at the rear of the towed vehicle and a connecting metal fitting connected to the front axle of the accident vehicle at both ends of the rod. The connection to the front axle was done by inserting a pin or by locking it with a chain. However, such work required a person to crawl under the accident vehicle, making the work inefficient and dangerous.

The present invention was developed in view of the above circumstances, and provides a towing connecting rod that is easy to work with and has high safety.

Fig. 1 shows the state when the present invention is in use, and the towing hitch is designated by the reference number 5. 1 is a towing vehicle 2, which is an accident vehicle, 3 is a front axle of the accident vehicle 2, 4 is a pintle hook of the towing vehicle 1, 6 is a boom of the towing vehicle 1, and 7 is a hook. The detailed structure of the towing hitch 5 is as shown in Fig. 2, and will be described in detail below.
8 is the inner cylinder, and 9 is the outer cylinder, which together form the rod. A hook 11 is fixed to the base end of the inner cylinder 8, which is hooked to the pintle hook 4 of the towing vehicle 1. A hanging ring 12 is also provided at a suitable position slightly toward the tip from the base end. The outer cylinder 9 is inserted into the inner cylinder 8 so that it can expand and contract and rotate, so that the rod length can be variably adjusted, and it can be rotated manually by operating a handle 13 provided at the base end. 10 is a fixed pin, which can be inserted into a pin hole appropriately drilled between the inner and outer cylinders 8 and 9 to restrain the inner and outer cylinders 8 and 9 from expanding and contracting and from rotating. 14 is a retaining plate attached to the tip of the outer cylinder 9, which is attached to the outer cylinder 9 via a pin 15 in a freely rotatable state. A holder 16 is formed by screwing a male thread 18 provided on the outer periphery of the tip of the outer tube 9, closer to the base end than the pressing plate 14, into which a holder tube 17 is screwed. The holder 16 holds the front axle 3 of the towed vehicle together with the pressing plate. When the front handle 13 is rotated, the holder 16 is screwed into the outer tube 9.
(and the pressing plate 14) and is adapted to move forward and backward.

The method of using the towing connecting rod 5 constructed as described above is as follows. First of all, it is necessary to connect the accident vehicle 2 before towing the accident vehicle. To do this, the tow vehicle 1 is retreated to an appropriate position in front of the accident vehicle 2, and the tow connection rod 5 is moved inwards by removing the pin 10. - Hang the hanging ring 11 on the pintle hook 4 with the outer cylinders 8 and 9 in a state where they can freely expand and contract. Next, the suspension ring 12 is lifted by the boom 6 via the hook 7, and the holder 16 is pressed against the front axle 3 of the accident vehicle 2. At this point, if the handle 13 is turned to retract the holder 16 toward the holding plate 14, the front axle 3 is held between the holding plate 14 and the holder 16. Next, the hook 7 is removed from the hanging ring 12 and the front of the accident vehicle 2 is lifted up via the lifting tool. Once here,
Remove the hanging ring 11 of the towing connecting rod 5 from the pintle hook 4, expand and contract the inner and outer cylinders 8 and 9 to adjust the rod length to an appropriate length, fix it with the pin 10, and attach the hanging ring 11 to the pintle hook 4 again. Multiply. Then, when the lifting height of the accident vehicle 2 is adjusted again, the connection work is completed.

This makes it possible to tow the vehicle, but the removal work is mostly done by performing the above-mentioned connection work in the reverse order.

As explained above, according to the present invention, when towing an accident vehicle with a towing vehicle, there is no need for a person to crawl under the accident vehicle, and the preparation work can be done simply by operating the handle and crane device from the outside. This has the advantage that work can be done quickly and safely.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing how the device of the present invention is used;
FIG. 2 is a sectional front view of the main parts of the device of the present invention.

Claims (1)

[Scope of utility model registration request] An inner cylinder has a hanging ring connected to a towing vehicle at its base end, and a fixing pin is fitted onto the inner cylinder so as to be extendable and rotatable toward the distal end of the inner cylinder, and is fixed at an appropriate extendable and retractable position with respect to the inner cylinder. an outer cylinder fixed to the inner cylinder in a non-extendable and non-rotatable manner; a presser plate attached to the distal end of the outer cylinder; and a presser plate provided on the outer periphery of the distal tip of the outer cylinder at a position closer to the proximal end than the presser plate. a holder whose cylindrical portion is screwed onto a male thread, and which holds the front axle of the towed vehicle together with the holding plate; and a holder for rotating the outer cylinder provided at the base end of the outer cylinder. A towing connecting rod consisting of a handle.