JPH09226329A - Tire chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out exchange work to install and remove a horizontalled installed cable without using a tool, to carry it out with the horizontally installed cable installed on at tire and to firmly engage the horizontalled installed cable with a side chain without being carelessly disconnected from it. SOLUTION: A connector (c) connecting a horizontally installed cable such as a cross wire (b), etc., between side links against which a pair of side chains faces polymerizes a U shaped recessed part 92 formed on the side of an end edge 91 of a wound free end part 9 formed on one side of a belt plate piece 8 having continuing through hole 81 and slot 82 on a part continued to the through hole 81 of the aforementioned slot 82 , a wound base end part 10 on the other end of the belt plate piece 8 is installed on the side links of the side chains free to revolve, and an engagement element 7 on an end part of the aforementioned horizontally installed cable passes through the slot 82 in a state where it is positioned in the inside of the aforementioned wound free end part 9 and it is free to be connected to and disconnected from the aforementioned connector (c).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a tire chain mounted on a tire of an automobile for preventing slippage on a snowy road or a frozen road.

[0002]

2. Description of the Related Art As a tire chain of this type, a horizontal cable rope, for example, a plurality of cross chains in which a large number of cross links are connected between opposing portions of a pair of left and right side chains in which a large number of side links are connected. Various proposals have been made by laterally arranging.

[0003]

In the above, the connection between the horizontal cable and the side chain is performed by connecting the connector connected to the end of the horizontal cable to the side link of the side chain.
Although it is rotatable, it is engaged so as not to come off (Japanese Utility Model Publication No. 59-14244 and 59-14245).
Reference).

Naturally, the above-mentioned engagement is firmly performed so as not to be accidentally disengaged during use. In order to replace the, you have to remove and install it from the side chain using the required tools, but the replacement work is very difficult for an untrained person, and of course, when the tire chain is attached to the tire It was impossible to carry out such replacement work.

Therefore, according to the present invention, it is possible to easily perform the above-mentioned work of attaching and detaching a horizontal cable rope such as a cross chain (or cross wire) without using a tool, and to perform the work with a tire chain. It is intended to be carried out while the tire is mounted on the tire, and further, it is intended to firmly engage the horizontal rope with respect to the side chain so as not to accidentally come off.

[0006]

The structure of the tire chain of the present invention is as follows. A horizontal cable, such as a cross chain or a cross wire, is connected and stretched between the pair of left and right side chains a, a facing side links 1, 1 via a connector c. In the connector c, one side of the strip 8 having the through hole 8 ₁ and the long hole 8 ₂ continuous with the through hole 8 ₁ is wound on the front side to form a winding free end portion 9, and the winding free end portion 9 is formed.
The U-shaped recess 9 ₂ formed on the end edge 9 ₁ side of the
_In a state where it overlaps with a portion continuous with the through hole 8 ₁ of ₂ , the other side of the strip plate piece 8 is inserted into the side link 1 of the side chain a and wound on the front side to form the winding base end portion 10, It is rotatably attached to the side link 1 in a state where its end edge 10 ₁ is located at the front edge of the through hole 8 ₁ .
The horizontal bridging rope is a engaging member 7 which is fixedly fitted at its end through the elongated hole ₈₂ in a state of being positioned in the winding migratory end portion 9, and is detachably into connectors c.

In the above, the double click mechanism is constituted by the small projections 11 and 12 provided on the inner edges of the elongated hole 8 ₂ of the connector c facing each other to ensure the engagement of the engaging element 7 of the cross rope. Also, it is obvious that it is preferable in practice to form the bulging portion 10 ₂ for reinforcement to reinforce the winding base end portion 10.

Further, as a horizontal cable, a plurality of large-diameter and relatively-short coil springs 5 are provided in the central portion of a spring wire 4 formed by inserting a wire core 4 ₂ into a small-diameter, relatively-long coil spring 4 ₁ . A plurality of rollers 6, each of which has a diameter slightly smaller than that of the coil spring 5 and is relatively short, is also loosely fitted to each of both side portions thereof, and cylindrical engaging elements 7, 7 are fitted to both ends thereof. Adopting the cross-wire b that is bonded and fixed has the advantages that it is lighter in weight, has better wearability on tires, has less ground resistance, and has less vibration and noise during running, as compared to a cross chain having cross links. .

[0009]

In the tire chain of the present invention, the horizontal rope is provided in the winding free end of the connector in which the engaging member fitted and fixed to the end of the horizontal rope is attached to the side link of the side chain by the winding base end. In the state where it is positioned, it penetrates through the long hole of the connector and can be attached to and detached from the connector.
This is because when the engaging element of the horizontal cable is pulled into the free end of the connector to engage the engaging element with the peripheral edge of the long hole, even if a further outward pulling force is exerted, it is removed. It will never come off.

By performing such an engaging work on the engaging elements at both ends of the horizontal cable, the horizontal cable can be easily stretched on the pair of left and right side chains. However, if the cross-cord has to be replaced due to wear, damage or cutting etc., the engagement can easily be disengaged by working in the reverse order. This releasing operation may be performed by releasing the tension of the side chain when the tire chain is attached to the tire.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to one embodiment shown in the drawings. a is a side chain, which connects a number of side links 1, connects an end link 2 to one side end, and connects a hook 3 to the end link 2.

[0012] b is a cross-wire which is one of the horizontal bridging rope, it is a relatively long coil spring with a small diameter 4 ₁
A coil spring 5 having a large diameter and a relatively short length is provided in the central portion of the spring wire 4 having the wire core 4 ₂ inserted therein.
A plurality of rollers 6 are loosely fitted, and a plurality of rollers 6, which are slightly smaller in diameter than the coil spring 5 and are relatively short, are likewise loosely fitted to both side portions thereof, and an engaging element 7 which is a hexagonal cylinder is provided at both ends. , 7 are fitted and fixed.

Reference numeral c denotes a connector, which is attached to the side link 1 at every required interval of the side chain a. The specific configuration of the connector c is as follows.
To form the through hole ₈₁ of the circular central metal strip pieces 8, the band plate piece elongated holes ₈₂ contiguous to the through hole 8 ₁ 8
It is formed toward one side. One side of the strip plate 8 on which the elongated hole 8 ₂ is formed is wound to the front side to form a winding free end portion 9, and a U-shaped concave portion is formed on the end edge 9 ₁ side of the winding free end portion 9. The treatment 9 ₂ is in a state of being superposed on a portion of the elongated hole 8 ₂ continuous with the through hole 8 ₁ .

The other side of the strip plate 8 on which the long hole 8 ₂ is not formed is inserted into the side links 1 of the side chain a at required intervals and wound on the front side to form the winding base end portion 10. , The connector c is rotatably attached to the side link 1 in a state in which the end edge 10 ₁ thereof is located at the front edge of the through hole 8 ₁ .

[0015] 11 and 12, a small projection provided on the periphery opposing inner of the slots _82, so staggered slightly the position of each other in the longitudinal direction of the elongated hole _82, the double click mechanism It is what constitutes. The winding base end portion 10 ₂ is a bulging portion for reinforcement formed on the winding base end portion 10.

Next, the manner of engaging the cross wire b with the connector c having the above-described structure, which is attached to the side link 1 of the side chain a by the winding base end portion 10 as described above, will be described with reference to FIGS. Will be described with reference to.

First, the engaging element 7 of the cross wire b is inserted into the through hole 8 ₁ and the U-shaped recess 9 ₂ from the back side of the connector c, and is projected to the front side, that is, the lower side of the drawing, so that these through holes are formed. The spring wire 4 of the cross wire b is positioned in 8 ₁ and the U-shaped recess 9 ₂ , and the roller 6 is brought into a state of engaging with the peripheral edge of the through hole 8 ₁ (chain line in FIG. 7).

Then, the spring wire 4 is rotated along with the long hole 8 _{2 so} that the spring wire 4 is rotated so that the spring wire 4 is pulled outward, and the cross wire b is pulled outward. Protrusion 11,
At the same time as the number 12 is exceeded (FIGS. 9 to 12), the engaging element 7 is pulled into the winding end 9 (FIG. 13). Thus, the cross-wire b is in a state of being engaged with the engaging element 7 in the peripheral edge of the elongated hole _82, also it is unnecessary to pull-out as a further pulling force outward acts.

Such an engaging work is performed by the cross wire b.
Connector c facing the engaging elements 7, 7 at both ends of
By performing this on c, the cross wire b can be easily stretched over the pair of left and right side chains a, a.

When the cross wire b stretched as described above has to be replaced due to wear, damage, cutting or the like, it is necessary to release the above engagement. Obviously, it is possible to work in the reverse order.

In the releasing operation, when the tire chain is mounted on the tire d as shown in FIGS. 1 and 2, the hook 3 of the end link 2 of the side chain a is removed and the side chain a is tensioned. It is good to carry out in a state where is loosened.

[0022]

As is apparent from the above description,
According to the present invention, the following effects can be obtained. In the state where the horizontal rope has the engaging member fitted and fixed to the end thereof in the winding free end of the connector attached to the side link of the side chain by the winding base end, Since it is detachable from the connector by penetrating the elongated hole, in other words, by pulling the engaging element of the horizontal cable to the winding end of the connector, the engaging element is attached to the peripheral edge of the elongated hole. Since they are engaged with each other, they will not be pulled out even if an outward pulling force is applied.

By performing such an engaging operation on the engaging elements at both ends of the horizontal cable, the horizontal cable can be easily stretched on the pair of left and right side chains. Also, when the horizontal rope must be replaced due to wear, damage, cutting, etc., the engagement can be easily released by working in the reverse order to the above.

In the tire chain of the present invention, the work of attaching and detaching the horizontal chain of the cross chain or the cross wire to the side chain can be easily performed without using a tool, and the horizontal chain The line can be firmly engaged with the side chain so as not to be accidentally disengaged, and the work can be performed with the tire chain attached to the tire.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a tire chain of the present invention in a state where the tire chain is mounted on a tire.

FIG. 2 is a longitudinal sectional view schematically showing the above.

FIG. 3 is a perspective view of a main part of the above.

FIG. 4 is a side view of a cross wire which is the above-mentioned horizontal cable rope.

FIG. 5 is a plan view of the above connector.

FIG. 6 is a sectional view of the above connector.

FIG. 7 is a perspective view showing a state where a cross wire engaging element is about to be inserted into a through hole of a connector.

FIG. 8 is a perspective view showing a state in which an engaging element of a cross wire is inserted into a through hole and a U-shaped recess of a connector.

FIG. 9 is a cross-sectional view showing a state in which an engaging element of a cross wire is inserted into a through hole and a U-shaped recess of a connector, showing a situation where the first small protrusion of the double click mechanism is passed through.

FIG. 10 is a plan view of the same.

FIG. 11 is a cross-sectional view showing a state in which a cross wire engagement element is inserted into a through hole and a U-shaped recess of a connector, showing a situation in which the last small protrusion of the double-click mechanism is passed through.

FIG. 12 is a plan view of the same.

FIG. 13 is a perspective view showing a predetermined engagement state of a connector and a cross wire.

[Explanation of symbols]

a side chain b cross wire which is a horizontal cable rope c connector d tire 1 side link 2 end link 3 retaining hook 4 spring wire 4 ₁ coil spring 4 ₂ wire core 5 coil spring 6 roller 7 engaging element 8 strip piece 8 _{1 through} hole 8 ₂ long hole 9 winding free end 9 ₁ end edge 9 ₂ U-shaped recess 10 winding base end 10 ₁ end edge 11 small projection 12 small projection 13 bulging portion for reinforcement

Claims (4)

[Claims] Claim: What is claimed is: 1. A tire chain comprising a pair of left and right side chains, which have side links facing each other, between which side links are connected and stretched by a horizontal rope, such as a cross chain or a cross wire. One side of the strip member having a hole and a long hole continuous to this is wound on the front side to form a winding free end portion, and a U-shaped recess formed on the edge side of the winding free end portion is provided in the long hole. In a state where it overlaps with the portion continuous with the through hole, the other side of the strip plate is inserted into the side link of the side chain and wound on the front side to form a winding base end, and the end edge of the winding hole is formed. In the state in which it is located at the front edge, it is rotatably attached to the side link, and the horizontal rope is long in the state in which the engaging element fitted and fixed to the end portion is located in the winding end portion. Through the hole, it can be detached from the connector. Tire chains, wherein the door. 2. The tire chain according to claim 1, wherein the connector constitutes a click mechanism by small protrusions provided on inner edges of the elongated hole which face each other. 3. The tire chain according to claim 1, wherein the connector has a bulging portion for reinforcement formed at the base end portion of the winding. 4. A plurality of large-diameter and relatively short coil springs are loosely fitted in the central portion of a spring wire in which a horizontal cable is formed by inserting a wire core into a small-diameter, relatively long coil spring. On each side of it,
4. A cross wire comprising a plurality of rollers, each of which has a diameter slightly smaller than that of a coil spring and is relatively short, and which has engaging members fitted and fixed to both ends thereof. The listed tire chain.