JPS62181878A - Chain connecting tool at time of mounting of tire chain - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a tool for temporarily locking the end chain of a side chain when a tire chain is attached to a tire.

"Prior Art and its Problems" Conventionally, when attaching a tire chain to a tire, the tire chain is generally first spread out on the ground, and then a car or the like is moved to place the tire approximately on the center of the tire chain. Then, you can attach the tire chain to the side tire by holding both the left and right ends of the side chain with both hands and locking both ends, or you can jack up the tire and insert the tire under the tire. Install the chain as it is, or remove the tire's jacking amplifier, place it on the ground, hold both left and right ends of the side chain with both hands, and lock both ends. It is the same as in the prior art that one place in the side chain (in the direction outside the vehicle body) is not a connection part that can be moved toward and away from the vehicle body, but both the left and right ends of the inner and outer side chains are movable toward and away from each other. ), first, with the connecting part of the outer side chain separated, put the tire chain across the tire from the inside (toward the vehicle body), and place the tire's ground contact surface in the gap between the cross chains adjacent to the connecting part. Then, the separated connecting portions are connected to form a ladder-type tire chain similar to the conventional one. Since then, a structure has been published in which the inner and outer side chains are attached by holding both left and right ends with both hands and locking both ends, as in the prior art.

``Problems to be Solved by the Invention'' The conventional method described in detail above does not require operations such as extending the tire chain to an accurate position and lifting the left and right ends of the tire chain with both hands, and also requires the operation of jacking up the tire chain. However, extra work such as installing the jack, lifting the jack, and removing the jack is required, and the installation requires time and skill. This is especially difficult for large vehicles.
Lifting a tire chain is not an easy task. Furthermore, although the above-mentioned disadvantages are somewhat solved by the side chain having a connecting part, the above-mentioned operation is difficult and difficult for large vehicles such as trucks equipped with double tires. , something that seems practically impossible to adopt. In addition, although it is suitable for ordinary ladder-type tire chains, cross chains with diamond-shaped and ground-shaped cross chains can be used to position the tire contact surface even when the connecting part is set up or disconnected as described above. There are quite a few problems, such as the fact that it is impossible.

Accordingly, the present invention provides a chain locking tool used when installing a tire chain, which is particularly suitable for the above-mentioned trucks and tires having holes in the wheels. consists of an insertion part made of a rigid member that is inserted into a hole in a wheel with an inner hook at one end, a connecting part made of an elastic member such as rubber or a spring connected to this insertion part, and a connecting part made of an elastic member such as a rubber or a spring. This is a guide tool consisting of an outer hook and an inner hook, and after inserting the insertion part from one side of the wheel hole toward the other, the inner hook locks the end chain of the inner side chain of the tire chain. Then, while tensioning the connecting portion, the tip chain of the outer side chain of the tire chain is locked to the outer hook.

"Operation" Next, the present invention will be described in detail.The inner hook of the insertion part of the p-guide tool is inserted from the outside into the hole opened in the wheel first, and the inner hook is positioned inside the wheel. Then, the tip chain of the inner side chain of the tire chain is locked to this inner hook, and then, while the connecting portion is extended, the tip chain of the outer side chain of the tire chain is locked to the outer hook. This allows one end of the tire chain to be attached via a guide tool. Subsequently, when the car is moved and the tires are rotated, tire chains are sequentially wrapped around the outer circumferential surface of the tires as the tires rotate. Therefore, at least when the tire chain has been wrapped beyond the tire contact surface, if the end chains of the side chains are released from the inner and outer hooks of the guide tool, the guide tool and the tire chain will be released. So, now pull out the guide tool from the tire. As a result, the tire chain is wrapped around the tire. After that, the tire chain is attached to the tire by locking both left and right ends of the side chain in the same manner as before.

``Embodiment'' The drawing shows an embodiment of the present invention. In the drawing, reference numeral 1 denotes an insertion part made of a rigid member such as a steel plate, hard plastic, preferably a plate of spring material, etc. An inner hook 2 is provided at one end. One end of a connecting portion 3 made of an elastic member such as rubber or a spring is connected to the other end of the insertion portion 1. o4 is an external hook provided at the other end of the connecting portion 3. The guide tool A is composed of the insertion part 1, the inner and outer hooks 2, 4, and the connecting part 3, and the dimensions of the insertion part 1 vary depending on the size of the tire or one or two tires (double tire), etc., as described later. It is better if the hole can be made long or short as a nesting hole. Although the drawing shows a double tire 5, a single tire 5 is of course also suitable.

Next, to explain how the present invention is used, the insertion portion 1 of the υ guide tool A is inserted into the outer hole 7 of the wheel 6 of the tire 5, preferably the upper one as shown in FIG.
is inserted through the inner hook 2 first until the inner hook 2 is positioned inside the wheel 6. Then, the end chain of the inner side chain 8a of the tire chain 8 is locked to the inner hook 2, and then, while extending the connecting part 3, the end chain of the outer side chain 8b of the tire chain 8 is engaged to the outer hook 4. Stop. As a result, one end of the tire chain 8 is attached to the tire 5 via the guide tool A, as shown in FIG. 4(a). Subsequently, when the vehicle is moved and the tires 5 are rotated, the tire chains 8 are sequentially wrapped around the outer circumferential surface of the tires 5 as the tires 5 rotate. Therefore, at least when the tire chain 8 is wound beyond the contact surface of the tire 5, the guide tool A
When the inner and outer hooks 2 and 4 of
Pull it out through hole 7 of tire 5.

As a result, the tire chain 8 is wrapped around the tire 5, as shown in FIG. 4 (b). After that, the tire chain 8 is attached to the tire 5 by locking both left and right ends of the side chains 8a and 8b as in the conventional case. Note that the guide tool A remains as it is when the tire chain 8 is wrapped around the tire 5 as described above, and when locking both left and right ends of the side chains 8a and 8b, the side chain 8a + 8
The guide tool A may be pulled out from the hole 7 by locking the left and right ends while releasing the lock between the end chain b and the inner and outer hooks 2 and 4, and then pulling out the guide tool A through the hole 7.

``Effects of the Invention'' As detailed above, the present invention has a structure in which one end of a tire chain is attached to a tire by using a hole in a wheel and via an inner and outer hook of a guide tool having an insertion portion inserted into the hole. Therefore, one end of the tire chain can be easily attached to the tire, and thereafter it can be automatically wrapped by rotating the tire, which is very convenient. In addition, both the left and right ends of the tire chain can be locked from below, and this can be done even with the tire chain attached to the guide tool, making it easy to install the tire chain without requiring any skill. Furthermore, by making the insertion part a rigid member, the inner part can be positioned sufficiently inward even with double tires, and by making the joint part entirely elastic, it is possible to adjust the size of the tire or the tire chain to the tire. 0, which has practical effects such as improving the fit.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a perspective view showing the state of use, and FIG.
-X sectional view, and FIGS. 4(A) and 4(-) are side views showing the state of use. DESCRIPTION OF SYMBOLS 1... Insertion part, 2... Inner hook, 3... Connecting part, 4... Outer hook, 5... Tire, 6... Wheel, 7... Hole, 8... Tire chain, A...
guide tool

Claims (1)

[Claims] An insertion part made of a rigid member that is inserted into a hole in a wheel with an inner hook provided at one end, a connecting part made of an elastic member such as rubber or a spring connected to this insertion part, and a connecting part provided in this connecting part. This is a guide tool consisting of an outside hook. After inserting the insertion part from one hole (outside) to the other (inside) of the wheel hole, the end chain of the inside side chain of the tire chain is engaged with the inside hook. This chain locking tool is used when installing a tire chain, and is configured to lock the end chain of the outer side chain of the tire chain to the outer hook while tensioning the connecting part.