JPH0446964Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a tightening device for a skid device for automobile tires, and in particular, when a skid device is installed on the circumferential surface of a tire and the car is driven, centrifugal force The present invention relates to a tightening fixture for an automobile tire skid which prevents deformation such as elongation and distortion of the restraint due to external forces, thereby reliably preventing the skid from being deformed or falling off from the tire.

(Prior art) Steel chains have conventionally been used as anti-skid devices for automobile tires on roads that are prone to slipping during snowfall or ice. However, there were problems with durability, noise, road damage, and high-speed performance. Due to recent dramatic advances in rubber and plastic materials,
We have seen the emergence and widespread use of non-metallic tire skids that can improve the problems of steel chains. Generally, to prevent cars from slipping on snowy and icy roads,
As shown in FIG. 9, an example of a non-metallic tire skid device that is used by being attached to the tire circumferential surface, the skid device main body 1 is a molded body of an arbitrary shape made of a rubber-like elastic body. Consisting of groups 2 and 3, a non-stretchable side rope located on the inner side of the tire for endlessly tightening the skid stopper body to the circumferential surface of the tire T, an elastic rubber ring R located on the tire surface side, and the above-mentioned type. It is composed of a rope stopper and a ring hook 5 for attaching a side rope and a rubber ring on both sides of the body group, a joint hook 10 as a hook part that connects the side ropes in an endless manner on the side surface of the tire to form a connecting part, and the like. This anti-skid device, which is mainly made of rubber-like elastic material, has been put into practical use as an alternative to steel chains, and it provides excellent riding comfort, durability, noise control, and prevention of road damage even on snow-free roads without having to remove it. It can have a great effect.

(Problem to be solved by the invention) A skid stopper mainly consisting of a rubber-like elastic body, which is attached to the circumferential surface of a tire and whose both sides are tightened with side ropes and rubber rings (tightening rings), is Time,
Centrifugal force and external forces act on both the side rope side and the elastic rubber ring side, and the rubber ring part in particular is hooked on a group of hooks attached to the side edge of the non-slip device, so it suffers from the following drawbacks. I saw it happen.

1. Since the rubber ring is an elastic body, there is only resistance due to the elastic force in the direction of extension, and the resistance force against centrifugal force corresponding to the rotation of the tire is small.

2. Since the rubber ring is hooked onto the ring hook using only elastic force, the rubber ring becomes distorted due to loosening due to distortion in the circumferential and radial directions of the non-slip device body, and the rubber ring is not strong enough to prevent the main body from loosening. This restoration function is difficult to obtain with a rubber ring type.

3. In the worst case scenario, the rubber ring may be stretched beyond the diameter of the tire, falling off along with the anti-skid device to the inside of the tire, becoming entangled with the car's axle, or damaging brake pipes, causing a major accident. There is a risk that

In order to solve the above-mentioned problems, the present applicant has developed a tightening device that fixes the non-slip device attached to the tire circumferential surface through a group of hooks, and has made it possible to attach and detach the non-slip device to the tire circumferential surface. To provide a fastening device for automobile tire skids that is easy to use and that also reliably prevents the slipping device from being displaced from the tire circumferential surface or falling off due to unexpected elongation or deformation of the fastening device. , and the conventionally used rubber ring (tightening ring)
The purpose is to provide a tightening device that can be used in combination with.

(Means for solving the problem) In order to achieve this objective, the present invention has the following configuration.

That is, the tightening device according to the present invention has a non-stretchable side rope on one side portion located inside the tire among both side edges of the non-skid device body which is mainly made of a rubber-like elastic body and is attached to the circumferential surface of the tire. This is used for a type of tire skid device in which the tightening device is locked to a group of hooks arranged at a predetermined pitch on the side edge of the skid device body on the other side. , this tightening device has a non-stretchable annular rope in the center with a circumference much shorter than the circumference connecting all the hooks attached to the above-mentioned non-slip device, and uses the annular rope as a core material to connect the entire periphery of the rope. The locking device has a structure in which a mesh-like elastic bridge member that expands outward is integrated, and a group of hooks of the slider is locked to the outer end of the elastic bridge member of the tightening device to form a main body of the automobile slider. Attach it to the circumference of the tire.

If necessary, this tightening device can also be used in combination with a conventional elastic tightening ring (rubber ring) that is engaged with all the hook groups.

(Example) Next, a specific example of the tightening device of the anti-slip device for automobile tires according to the present invention will be described with reference to the drawings.

Fig. 1 is a side view of a tire when the anti-slip device for automobile tires is installed on a tire using the tightening device according to the present invention, and Fig. 2 shows a conventional tightening ring (rubber ring ), Fig. 3 is a view corresponding to Fig. 1 showing another embodiment of the tightening device, and Fig. 4 is a side view of a tire with a non-slip device used in conjunction with the tightening device shown in Fig. 3. It is a side view of a tire with a folding anti-slip device that also uses a ring.

In the figure, 1 is the main body of the non-slip device, which has a group of convex pieces on the ground side to improve grip strength, and a group of protrusive pieces mixed with metal spike pieces that are particularly excellent in terms of wear resistance. The two types of body are the European letter I-shaped body 2 in plan view that exhibits excellent braking and driving force in the direction, and the X-shaped body 3 in plan view European letter that provides excellent ride comfort and skidding braking force. The mold bodies 2 and 3 are formed in series from a rubber-like elastic body made of rubber or synthetic resin with a core embedded inside. .

Of the cross-fixing parts 4 at both ends of each mold body 2, 3, one side cross-fixing part located inside the tire is fixed with a non-stretchable side rope via a stopper over the entire length of the anti-skid device. has been done. On the other hand, a hook 5 is attached to each cross-fixing part 4 on the other side of the mold body located on the outside of the tire. And the non-slip body 1
is assembled in an endless manner on the circumferential surface of the tire through joint hooks 10 in its longitudinal direction, and is tightly fixed to one side located inside the tire T via a stopper over the entire length of the skid body. The cross fixing part 4 of the mold body is stabilized by the presence of side ropes, and the other side located on the outside of the tire T has a cross fixing part 4 of the mold body.
A stretchable tightening device 11 is hooked to five groups of hooks attached to the holder to stabilize the structure.

The main part of the present invention is actually this tightening device 11, which is a non-stretchable device with a circumference much shorter than the circumference connecting the five groups of hooks arranged on the side of the tire skid device main body 1. A triangular shape, which is one of polygonal members, has an annular rope 13 in the center, uses the annular rope 13 as a core material, and expands outward from its entire periphery, one side of which coincides with the rope core material. Part 1
The elastic bridge member 15 has a mesh-like elastic bridge member 15, which is made up of elastic bridge members 15 arranged at approximately equal pitches (see FIGS. 1 to 4).

Examples of materials for the non-stretchable circular rope 13 include non-stretchable and low-stretch materials such as steel wire, synthetic fiber ropes such as nylon and polyester, aromatic polyamides such as Kevlar, polyurethane, and thermoplastic resins such as vinyl chloride. It is constructed from a single material or an appropriate combination of these materials.

The mesh-like elastic bridge member 15 made of an aggregate of triangular members is constructed with a string-like body made of rubber or an elastic synthetic resin material, and the elastic bridge member 15 is attached to the annular rope 13 by The non-stretchable rope 13 is inserted into a through hole 17 previously drilled in the enlarged base 16 (see Fig. 5), and both ends of the rope are held with clips 19 (see Fig. 6). ), the clip 19 connects the pair of enlarged bases 1 of the bridge member.
6 and 16 (see Figures 1 and 2).

Reference numeral 21 denotes a branch-shaped supporter disposed near the tip of the triangular member 14 of the bridge member 15. This supporter 21 has the effect of preventing the hook 5, which is locked to the tip of the triangular member of the elastic bridge member, from shifting, and also has the effect of preserving the shape of the bridge member.

The tightening device 11 having the above-described structure has the hooks 5 of the non-slip devices respectively locked to the tips of the triangular members 14 of the bridge member, and the tire T of the non-slip device 11.
Fig. 2 shows a state in which a conventional elastic tightening ring (rubber ring) R is used in conjunction with this tightening device, thereby further improving the effectiveness of this tightening device 11. can be expected.

In comparison with the embodiment shown in FIG. 1, FIG.
5 (see FIG. 7), and a clip for clamping both ends of the rope forming the annular rope 13 is embedded in the enlarged base 16 of the bridge member 15. ing.

Incidentally, FIG. 4 shows a state in which a conventional elastic tightening ring R is used in combination with the tightening tool 11 shown in FIG. 3.

FIG. 8 is a diagram corresponding to FIG. 1 showing still another embodiment, in which a non-stretchable annular rope 13 is placed in the center of the tightening device 11 and acts as a core material of the tightening device 11.
A mesh-like elastic bridge member 15 is formed by adjacently gathering square members 29, which are polygonal members that expand outward, around the entire circumference of the member. The base portion constituting one side of the square member forming this elastic bridge member 15 is made of an elastic covering material 23 that covers the entire length of the non-stretchable annular rope 13 and forms a part of the elastic bridge member 15. It is integrated.

Although not shown, the tightening tool 11 shown in FIG.
Similarly, by using it in combination with the conventional elastic tightening ring R, it is possible to realize reliable attachment of the anti-skid tool main body 1 to the tire circumferential surface.

(Effects of the invention) The tightening device according to the invention has a core material composed of a non-stretchable annular rope in the center thereof,
In addition, the core material is designed to have a small diameter, so when driving a car, especially when making a sharp turn, an excessive side force acts, and when driving on a wet road with deep snow, the anti-skid device gets caught in the falling snow and the tire only gets stuck. Although a large elongation force acts on the fastener that is idling and fixes the anti-slip device, in the case of the fastener according to the present invention, the circumference of the core material does not change, which suppresses the elongation.
In addition, since the amount of deformation is suppressed by itself, the anti-skid device has a strong ability to prevent deformation, displacement, and falling off from the tire circumferential surface.

In addition, by disposing a non-stretchable circular rope as the core material, the overall elongation of the tightening device itself is suppressed over a long period of time and even during repeated use, and the durability of the tightening device itself is extended accordingly. be converted into

Furthermore, when the anti-slip device is attached to the tire circumferential surface, deformation of the elastic bridge member portion is prevented by configuring the mesh-like elastic bridge member in the present tightening device as an assembly of polygonal members having multi-sided portions. This facilitates the work of locking the bridge portion to the group of slider hooks, and the attachment of the slider can be carried out quickly and easily. When a car is running, a local load is applied to the skid device due to tire slipping, etc., causing the skid device itself to deform, and as a result local elongation deformation occurs in a portion of the elastic bridge member. , the partial load concentration on the elastic bridge member is dispersed throughout the elastic bridge member spreading in a mesh pattern, and the local fatigue of the elastic bridge member is released and eliminated within a short time, thereby preventing partial failure of the tightening device. The occurrence can be efficiently avoided.

[Brief explanation of the drawing]

Fig. 1 is a side view of a tire when the anti-slip device for automobile tires is installed on a tire using the tightening device according to the present invention, and Fig. 2 shows a conventional tightening ring (rubber ring ), Fig. 3 is a view corresponding to Fig. 1 showing another embodiment of the tightening device, and Fig. 4 is a side view of a tire with a non-slip device used in conjunction with the tightening device shown in Fig. 3. 5 is an enlarged sectional view taken along line A-A in FIG. 1; FIG. 6 is an enlarged sectional view taken along line BB in FIG. 1; The figure is an enlarged cross-sectional view taken along the line C-C in Figure 3, Figure 8 is a view corresponding to Figure 1 showing yet another embodiment, and Figure 9 is a diagram of a skid stopper using a conventional tightening ring. FIG. 2 is a perspective view of the tire in a mounted state (however, in FIGS. 3, 4, and 8, only the non-stretchable annular rope portion is shown cut away). In the figure, 1 is the slide body, 5 is the hook, 11 is the tightening device, 13 is a non-stretchable annular rope, 14 is a triangular member, 15 is an elastic bridge member, 25 is a hook locking ring, and 29 is a square. The shaped member T indicates a tire.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Of the anti-skid device that is attached to the tire circumference, a non-stretchable side rope is arranged on one side of the device located inside the tire, and a non-stretchable side rope is provided on the other side. In a tire skid device of the type in which a tightening device is locked to a group of hooks arranged at a predetermined pitch on the side edge of the stop device, the tightening device has a non-stretchable circular rope arranged in the center, An automobile comprising a rope as a core material, a mesh-like elastic bridge member that expands outward is integrally formed on the entire peripheral edge of the rope, and the outer end edge of the bridge member of the tightening device is locked to each of the hooks. Tightening device for anti-slip devices for tires. (2) The antiskid device for an automobile tire according to claim 1, wherein the elastic bridge member is formed by adjoining polygonal members whose one side coincides with a non-stretchable annular rope core. fasteners. (3) The tightening device for an automobile tire skid device according to claim 2, wherein the polygonal member forming the elastic bridge member is constituted by a triangular member. (4) The tightening device for an automobile tire skid device according to claim 2, wherein the polygonal member forming the elastic bridge member is constituted by a rectangular member.