JPH0321286Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to the improvement of tire chains used for the tires of the wheels of automobiles when they drive on snowy roads.

Conventional technology A conventional tire chain has an inside side chain attached to the inside of the wheel and an outside side chain attached to the outside facing each other, and 5 to 8 cross chains are connected between each side chain. It is a combination. When attaching this tire chain to a tire, first deploy the tire chain to the front and rear of the tire, then move the car slightly and place the tire on top of the tire chain. Both ends were joined together, and then a chain band was placed on the outer side chain and the side chain was pulled.

In addition, when installing tire chains without moving the vehicle, the above-mentioned work must be performed with the tires lifted slightly off the ground by jacking up the vehicle.

Therefore, it is difficult to operate at that time, and it is especially difficult to operate on snowy roads, which are difficult to operate due to the nature of the tire chain, and it is also dangerous to operate while jacking up. Further increase.

Problems to be Solved by the Invention This invention improves the difficulty and danger of attaching the conventional tire chain, and also improves the difficulty in attaching and removing it from the tire. The purpose is to improve workability during removal.

Another purpose is to make it unnecessary to move the wheels back and forth or lift them up during the above-mentioned attachment and detachment.

Another purpose is to make it easier to engage and disengage the parts located inside the wheel.

Means for Solving the Problems An inner elastic ring is formed by bending a steel rod into a circular shape, and the two ends of the rod are opposed to each other to form an abutting part, and the inner elastic ring has a similar abutting part, and outer elastic rings with smaller diameters are arranged side by side so as to face each other, the inner elastic rings and the outer elastic rings are connected by a plurality of cross chains, and one end of the inner elastic rings at the abutting portion The latching tool at the other end is loosely fitted to the latching tool through a constant space, one end of the adjustment chain is connected to one end of the abutting part of the outer elastic ring, and the other end of the adjustment chain is connected to the other end of the adjustment chain. This is a tire chain with parts that can be hung and detached freely.

Function When attaching the tire chain of the present invention to a tire, remove the connections at both ends of the abutting part of the outer elastic ring, and grasp both ends of the abutting part of the inner elastic ring with the left and right hands of the operator. , the loose fit between the latching tool and the latching tool is removed against the elasticity of the inner elastic ring, and the abutting portion of the elastic ring is opened to deform into a substantially U-shape, forming a U-shaped In the middle,
Cover the tire from the top of the outside to the inside, then position both ends of the U-shape to the bottom of the inside of the tire, and use the elasticity of the inner elastic ring to restore the original ring shape. After that, the inner elastic ring is pulled in the tangential direction to firmly engage the latched tool and the latching tool.

Next, both ends of the abutting portion of the outer elastic ring are connected to each other, and the cross chain is adjusted so as to properly contact the outer peripheral surface of the tire.

Furthermore, when installing or removing the tire chain from the tire, first remove the connection between the abutting portions of the outer elastic ring, then disconnect the abutment portion of the inner elastic ring, open this part, and remove the inner elastic ring. The tire is removed by increasing its diameter and moving it from the inside of the tire to the outside.

Example: Inner elastic ring 1 made of rolled spring steel or piano wire with a diameter of about 5 mm and a butt part formed at both ends.
to form. Further, an outer elastic ring 2 having the same structure as the inner elastic ring 1 and having a smaller diameter than the inner elastic ring is arranged side by side so as to face each other,
Both elastic rings 1 and 2 are connected to each other by a plurality of cross chains 3. A latching ring 5 as a latching device is integrally formed at one end 4 of the abutting portion of the inner elastic ring 1, and a hook 7 as a latching device is always loosely fitted to the other end 6. A space 15 is provided between the retaining ring 5 and the hook 7 so that they do not always come into contact with each other. Also, one end 9 of the outer elastic ring 2
An adjustment chain 8 is coupled to the other end 10 of the adjustment chain 8, an adjustment hook 16 is connected to the other end 10, and a portion 8 of the adjustment chain 8 is connected to the adjustment chain 8.
A and an adjustment hook 16 are removably connected to each other, and a hook 12 is connected to the tip of the adjustment chain 8 via a coil spring 8b.

FIG. 4 shows a state in which this tire chain is attached to the tire 11 of the right rear wheel of an automobile. The above-mentioned inner elastic ring 1 is pulled in the circumferential direction of the tire by the tension of the operating chain 13, in which the retaining ring 5 and the hook are fixed to one end 4 of the inner elastic ring 1, to open the space. 15
It is strongly intertwined with each other in order to eliminate it.

At this time, the hook 14 connected to the tip of the operating chain 13 via the coil spring 13b is hung on a portion of the cross chain 3 in order to maintain the above-mentioned tensile force.

When installing or removing the tire chain from the state shown in FIG.
At the same time, the tensile force of the operation chain 13 is released, and the engagement between the locking ring 5 and the hook 7 is automatically loosened by the elasticity of the inner elastic ring 1, and the space 15 is opened again. 2 and 3, and return to the loosely fitted state as shown in FIGS. 2 and 3.

In this state, the operation chain 13 is
Remove the loose fitting by pulling in the direction of arrow A15 in the figure.
Next, the diameter of the inner elastic ring 1 is increased by pulling it in the direction of arrow A16 in FIG. The mounting and dismounting is completed by moving to the state shown in FIG. 1 and finally moving upward from the top of the tire 11.

Next, when installing the tire chain of the present invention on a tire, the above-mentioned installation and removal operation is performed in reverse.
In this case, first place the tire chain of the present invention on top of the tire 11 so as to cover it as shown in Fig. 6, temporarily set it in the state shown in Fig. 5, and move each part to the position shown in Fig. 4. Arrange. At this time, the retaining ring 5 and the hook 7 collide with each other as shown in FIG. 11 due to the elasticity of the inner elastic ring 1, slide on the sloped part 7a of the hook, pass through the tip 7b as shown in FIG. The state returns to the above-mentioned loosely fitted state, and a space 15 is formed. Then, pull the operating chain 13 in the direction of arrow A14 to eliminate the space 15 and firmly engage it as shown in FIG. Next, both ends 9 and 10 of the abutting portion of the outer elastic ring 2 are engaged with a suitable portion 8a of the adjustment chain 8 and the adjustment hook 16.

After that, the hook 14 at the tip of the operation chain 13 is
and a hook 12 at the tip of the adjustment chain 8,
The mounting is completed by hanging onto a part of the cross chain 3 located outside the tire 11.

Note that the operation of strongly engaging the locking ring 5 and the hook 7 from the loosely fitted state is not performed by pulling the operation chain 13 as described above, but by pulling the adjustment chain 8.
A part 8a near one end 9 is hooked to the adjustment hook 16, and the adjustment chain 8 is used briefly.
This is also possible by reducing the diameter of the outer elastic ring 2. At this time, the inner elastic ring 1 is pulled in the radial direction by the plurality of cross chains 3 to expand its diameter. This allows the locking ring 5 and the hook 7 to be firmly locked together.

Furthermore, when the tire chain of the present invention is installed and removed from the tire 11, the loose fitting position of the retaining ring 5 and the hook 7 is other than the ground contact area of the tire 11 as shown in FIG. When stepping on the chain 3, place one end of the inner elastic ring 1 on the tire 1.
1 from the outer position of the inner elastic ring 1 by pulling it in the direction of arrow A7 using the operation chain 13 to open the butt, and as shown in FIG. A part of the inner elastic ring 1 is moved to the outside beyond the top of the tire 11 as shown in FIG. 5, and is then lowered to the ground outside the tire 11 as shown in FIG. 10 to be mounted and removed.

At this time, the inner elastic ring 1 located at the bottom of the tire 11 cannot be moved outward through the contact surface 11a of the tire 11, so move the tire 11 slightly back and forth to release it from the top of the tire chain.
The tire chains are collected from the ground and stored.

Effects Since this invention is as described above, it does not involve moving the tires back and forth or jacking them up, so it is possible to attach a tire chain,
In addition to being able to be attached and detached, the operation can be performed from outside the tire even if the operator is on the outside of the tire, so the operation is easy and there is no danger.

In particular, since the retaining ring and the hook at the abutting portion of the inner elastic ring are always maintained in a loosely fitted state by the elasticity of the elastic ring, the elastic ring can be moved circumferentially from the loosely fitted state. Just pull it in the direction
It can be easily latched or removed by slightly shifting the abutting part in the radial direction, which eliminates troublesome operations inside the tire. Since it does not require any skill, it can be hooked and detached without requiring any skill.

This can be made easier to operate from the outside of the tire by connecting an operating chain to one end of the abutment of the inner elastic ring.

Furthermore, by making the diameter of the inner elastic ring larger than that of the outer elastic ring, the length of each cross chain can be made longer than if they were of the same diameter, and the length of each cross chain can be made longer than that of the same diameter. It can respond to a wide variety of changes in size.

[Brief explanation of the drawing]

Figure 1 is a slope view of the proposed tire chain, Figure 2
The figure is an enlarged side view of the main parts, and Figure 3 is the − of Figure 2.
4, 5 and 6 are perspective views showing each process of installing and removing the tire chain of the present invention, and FIGS. 7 to 10 are views of the tire in other states. Slanted views showing the process of loading and unloading the chain, Figures 11 to 16 are the same as Figures 2 and 3 above.
FIG. 3 is a partially cutaway side view of each operation process in the illustrated portion; 1... Inner elastic ring, 2... Outer elastic ring, 3... Cross chain, 5... Latching device, 7...
...Latch, 8...Adjustment chain.

Claims (1)

[Claims for Utility Model Registration] 1. An inner elastic ring having an abutting end and an outer elastic ring having a smaller diameter than the inner elastic ring and having an abutting end are arranged side by side in a face-to-face manner. , the two elastic rings are connected by a plurality of cross chains, and the hook at the other end is loosely fitted to the hook at one end of the abutting portion of the inner elastic ring with a constant space therebetween; A tire chain in which the abutting portions of one outer elastic ring are connected to each other via a length adjusting means. 2. The tire according to claim 1 of the utility model registration claim, characterized in that the latching device at one end of the abutting portion of the inner elastic ring is a latching ring, and the latching device at the other end is a hook. Chain. 3. The tire chain according to claim 1 or 2, wherein an operating chain is connected to one end of the abutting portion of the inner elastic ring. 4. The tire according to any one of claims 1 to 3, wherein the length adjustment means is an adjustment chain connected to one end of the outer elastic ring and an adjustment hook formed at the other end. Chain.