JPS632710A - Anti-skid tool for car tire - Google Patents

Abstract

PURPOSE:To prevent the decentering of a mesh rubber band by integrally burying a fastening rope installation metal in the metal fitting rubber base of the mesh rubber band while being hooked to a reinforcing fiber core in the said anti-skid tool using mesh rubber. CONSTITUTION:A core metal section 12 is integrally buried in the metal fitting rubber base 3 protruded outward from the end of each mesh on both side edges of a mesh rubber band 1. Its outside end is formed into the rope fixing hole section 8 of a rope fitting metal 4 and the rope inserting hole section 10 of a rope inserting metal 5. According to this constitution, the fastening rope is inserted into the rope fixing hole 7, the rope fixing hole section 8 is caulked to fix the rope. Another fastening rope is inserted into a rope inserting hole 9, and these ropes are squeezed to fix a mesh band to a tire. Accordingly, the core metal sections serve as a skeleton and firmly clamp a tread section, thus the decentering of the mesh band can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an anti-slip device for automobile tires that prevents the automobile tires from slipping on snowy or frozen road surfaces.

Recently, mesh band anti-slip devices made of rubber or plastic have been used instead of metal chenos, which are less noisy, cause less damage to roads, and have excellent durability.

In particular, with the spread of front-wheel drive (FF vehicles), anti-slip devices made of mesh rubber bands have been popular due to their excellent handling stability. However, since these are flexible structures, when driving on clay muddy water or wet muddy roads, they can get caught between the tires and the mesh rubber band, and when turning the steering wheel suddenly in a front-wheel drive car, the tires may become damaged. In cars with brake parts or axle support parts that are eccentric from the center of the tire and are installed close to the tire wheel, the inner tightening lobes or mounting metal fittings may come into contact with them and be damaged. There are drawbacks to doing so.

The present invention improves the safety of the anti-slip device for automobile tires by improving this drawback.

Conventional tightening methods for attaching and fixing a mesh rubber band to a tire connect the lobes and the mesh rubber band as follows.

Conventional example 1: Tighten each mesh on both sides of the mesh rubber band by threading a rope through it, attach the mesh rubber band to the tire, and tighten the mesh on both sides of the rubber band by tightening the mesh on the tire. something to be fixed to.

Conventional Example 2 A mesh rubber band is attached to a tire, and each inner mesh and a tightening rope are fixed at required intervals by caulking metal fittings shown in FIG. 2. As shown in Figure 3, a lobe hook is attached to each mesh on the outside of the other tire by caulking one side of the hook fitting. This mesh rubber band is attached to the tire, and the inner tightening rope is connected using the hook fittings provided at both ends of this rope, and the lobe hooks attached to each of the outer meshes are connected to the hook fittings in a ring shape. The molded fastener is secured by hanging a rubber rope and tightening the mesh rubber band to the tire.

Conventional Example 3 As shown in Figures 4 and 5, a mesh rubber band with holes formed in each mesh on both side edges of the mesh rubber band for mounting metal fittings is attached to the inner side when attached to a tire. The holes for installing each metal fitting and the rope for tightening are connected and fixed by caulking them at required intervals using the lobe fixing metal fittings shown in Fig. 4.

Each metal fitting on the outside of the other tire is attached to the hole, and the lobe hook shown in Fig. 5 is attached by caulking the hook fitting.

This mesh rubber band is attached to the tire, and the inner tightening is done by connecting the rope using the hook fittings provided at both ends of this rope, and the outer fittings are attached to the holes, and the robe hooks attached to the holes are connected to the hook fittings. The ring-shaped tightener is secured by attaching a rubber lobe and tightening the mesh rubber band to the tire.

Conventional Example 4 A mesh having a lobe passage hole base extending outward and protruding from each mesh on both sides of the mesh rubber band, and a rope passage hole opening and passing through the mesh rubber band at its tip in the length direction of the mesh rubber band. A tightening rope is passed through the rope passing holes on both sides of the rubber band, and a hook is attached to one end of the rope, and a drawable hook fitting is attached to the other end. This mesh rubber band is attached to the tire, and both ends of the rope are connected with hooks that can be drawn, and the mesh rubber band is attached and fixed to the tire by pulling the rope and tightening it.

Although the above-mentioned methods have been put into practice or have been proposed, they have the following drawbacks.

In Conventional Example 1, since the tightening is done by passing the rope through so as to sew each mesh on both sides of the mesh rubber band, when the rope is pulled and tightened, the rope is inserted between the tire and the mesh rubber. The problem is that the mesh rubber band is misaligned and eccentric, and the tightening rope gets closer to the tire tread, causing wear and tear.
This method has the same drawbacks as Conventional Example 2.3.4 below, so it has not been put into practical use.

Conventional Example 2 and Conventional Example 3 are the most commonly used ones, but the main parts for tightening ropes are shown in Figures 2, 3, 4, and 5. FIG. 8 shows a cross section of the tire mounted on it. As you can see, if the width of the mesh rubber band is set narrow, even if the mesh rubber band shifts slightly to the left or right while driving, the metal fittings will wear out and break when attaching the rope. It is necessary to set the area to a size with ample margin. In addition, since it is a flexible structure, it gets caught between the tires and the mesh rubber band when driving on clay muddy or wet road surfaces, and in front-wheel drive cars, it can cause sudden steering turns. Since the mesh rubber band is off-center and off-center of the tire, in front-wheel drive vehicles that have a brake or axle support located at a higher position than the tire wheel or very close to it, the mesh rubber band may be offset from the center of the tire. If the rope is tightened eccentrically, the rope or the metal fittings attached to it will come into contact and be damaged.
The worst drawback is that it is unsafe.

Since Conventional Example 4 is also a flexible structure, as described in Conventional Examples 2 and 3, it has the disadvantage of eccentricity due to misalignment. however,
Conventional Example 4 can be improved to reduce eccentricity due to misalignment by inserting a core metal into the base of the rope passage hole and molding and reinforcing it.

The present inventors completed the present invention as a result of intensive research in order to improve the above-mentioned worst drawback.

As an embodiment of the present invention is shown in the drawings, a tightening rope used for attaching and fixing a mesh rubber band to a tire is attached to each mesh on both sides of the mesh rubber band with metal fittings. , the attachment to the mesh rubber band has been improved and it is mounted on the tire to prevent the mesh rubber band from shifting and causing eccentricity while the car is running.

That is, a mesh rubber band with a reinforcing fiber core having approximately the circumference of the tire to be mounted, metal fittings attached to each mesh on both side edges of the mesh rubber band, and a mesh rubber band through which the metal fittings are inserted. In an anti-slip device for automobile tires, the metal fittings used include a rope having a hole through which the tightening rope is passed, and each tightening rope is used to attach and fix the rubber band along the circumference of the tire. A rope fixing fitting having a threading fitting, a rope fixing fitting having a fixing part for passing a rope through it and fixing the fitting by caulking the fitting, and a rope hook fitting having a hook part for attaching the fitting by hanging the rope for tightening, and
A core metal part having a hook part at the tip is provided by extending one side of the metal fittings used in combination of one type or two or more types of metal fittings,
The hooks at the tip extend outward from the edges of each mesh on both sides of the mesh rubber band, and the metal fittings are attached to the reinforcing fiber core built into the side edges of the mesh rubber band at the rubber base. The hook is characterized in that the entire core metal part is embedded and built-in in a locked state.

In other words, for tightening, there is a rope passing fitting that has a hole for passing the rope through, for tightening, there is a rope fixing fitting that has a fixing part for passing the rope through and caulking the fitting to fix the rope and the fitting, and for tightening, for hanging the rope. A robe hanger that has a hook that is attached to the hook is made by using one or more of three types of metal fittings together with a hook metal fitting. One side of the metal fitting is extended and a core metal part with a hook is provided at the tip. The metal fittings formed to extend outward and protrude from the ends of each mesh on both sides of the mesh rubber band are attached to the core metal by hooking the hooks at the tip to the reinforcing fiber core at the edge of the mesh within the rubber base. As shown in Figure 7, where the mesh is buried integrally, the core metal part, which is firmly fixed to the reinforcing fiber core at the edge of the mesh, becomes the skeleton.
This prevents the left and right edges of the mesh rubber band attached to the tire from slipping onto the tire tread and causing eccentricity even if the left and right edges of the mesh rubber band are subjected to an excessive unbalanced load, such as when a sudden steering wheel is turned while the vehicle is running. This is a safe anti-slip device for automobile tires made of a mesh rubber band featuring the following.

Even if a beginner installs the anti-slip device for automobile tires made of a mesh rubber band according to the present invention on a tire, the metal fittings on both sides of the mesh rubber band can be attached with the core metal part of the metal fitting buried in the rubber base, forming a skeleton. The advantage is that the position to cover the tire tread and both side parts can be clearly seen, and the tire can be mounted accurately in the center of the tire.

Also, even if the tire is mounted slightly off center, if the tire rotates a few times on the road surface, the center part will be 1. There are a lot of advantages.

Also, even if the mesh rubber band is slightly loosely tightened to the tire and fixed, the metal core inside the rubber base will be the framework for attaching the metal fittings.
Since the tire is sandwiched between both edges, the tire gripping force is strong, there is little slippage between the tire and the mesh rubber band, the propulsive force is large, and the mesh rubber band does not shift from side to side.

In the conventional example, the metal fittings for attaching the rope are attached by caulking the mesh rubber bands to the meshes on both sides after vulcanization molding, but in the present invention, the metal fittings are attached to the predetermined positions in the vulcanization mold. Since it is only necessary to arrange and fit the metal fittings, it is possible to obtain a safe mesh rubber band with less time and effort than conventional ones, even including the time and effort of applying adhesive to the metal fittings.

The rubber used in the present invention may be either natural rubber or synthetic rubber. Rubber chemicals such as vulcanizing agents are mixed and used. In particular, a compound containing a reinforcing agent such as carbon blank and having excellent strength, abrasion resistance, cold resistance, and weather resistance is used.

Both natural and synthetic fibers can be used as the reinforcing fiber core material, but polyamide, polyester, aramid fibers, etc., which have excellent strength, are preferable.Resorcinol, formalin, and latex are used to improve adhesion to rubber. The treated ones are good.

The tightening robes used on both sides of the mesh rubber band are braided cords of natural or synthetic fibers, metal wire lobes, metal wire ropes coated with synthetic resin, or ring-shaped rubber lobes.

The metal fittings that connect the mesh rubber band used in the present invention and the tightening rope are plated with brass, zinc, etc. for the purpose of rust prevention and good adhesion to the rubber. . In order to improve the adhesion between rubber and metal, good results can be obtained by applying a rubber-to-metal adhesive represented by the trade name Chemiloc.

The present invention will be explained below with reference to Examples and drawings.

First step: A rubber compound with high strength, wear resistance, and cold resistance is kneaded, and this is mixed into a ribbon-shaped rubber to be supplied to the extruder, and a rubber thick enough to be wrapped around the metal core 12 of the metal fitting and bonded. The sheet is rolled in two ways.

Second step: The ribbon-shaped rubber rolled in the first step was supplied to an extruder equipped with a crosshead and extruded, and treated with resorcin, formalin, and latex from the crosshead. The Nanron core 2 is supplied and extruded simultaneously to extrude and mold an unvulcanized rubber string containing the reinforcing fiber core 2 with a predetermined shape and size.

Third step: Core metal part 1 of rope fixing fitting 4 shown in Figures 9a and 9b
2 and the metal core part tip hook 14, and the metal core part 12 and the metal core part tip hook 14 of the lobe passing fitting 5 shown in FIGS. 10a and 10b are undercoated with Chemilock 205 (trade name), after drying, and then applied thereon. Top coat with Chemiloc 220 and dry. On top of this, the rolled rubber sheet for the metal core part 12 rolled in the first step is cut to the required size, and the wrapping is pasted and prepared in advance around the core metal part 12 excluding the core metal part tip hook 14. I'll keep it.

Fourth step: Assemble the unvulcanized rubber string obtained in the second step into a mesh rubber band using the mesh groove of the vulcanization mold and a preparation mold having the same mesh knitting guide for knitting the mesh band. , the intersection portions are crimped and bonded to prepare for preparation in advance.

Step 5: A concave groove for forming a mesh belt with a shape approximately the circumference of the tire as shown in FIG. A concave groove for forming the rope fixing hole 8 of the rope fixing fitting 4 is formed on the extension of the molded groove of the rubber base 3, and each fitting is attached to the other edge of the rubber base 3. Installation is done using a lower vulcanization mold that has a concave part that accommodates the lobe passage hole part 10 of the rope passage fitting 5 in an extension of the molding groove of the rubber base part 3, and each rope fixing hole part 8 and each rope passage hole part 10. Using an upper vulcanization mold with a convex part to push the vulcanization into a predetermined position, the unvulcanized vulcanization molded in advance in the fourth step is placed in the groove for forming the mesh band of the lower vulcanization mold. Place and fit the mesh rubber band.

Next, the rope fixing fittings 4 and the lobe passing fittings 5 prepared in advance in the third step are placed at respective predetermined positions and fitted together. A top vulcanization mold is placed on top of this and vulcanization molding is performed by applying pressure and heating.

6th step: After the completion of vulcanization molding, mesh rubber band 1 is inserted from inside the upper and lower vulcanization molds.
When it is removed and deburred, the mesh rubber band shown in FIG. The rope fixing holes 8 of the rope fixing fittings 4 protrude from the rubber base 3 when attaching the metal fittings on one edge of this, and the rope passing holes 10 of the rope passing fittings 5 protrude from the rubber base 3 on the other side. A protruding mesh rubber band 1 is obtained.

Seventh step: Pass a predetermined length of the nylon-coated wire lobes 16 through each rope fixing hole 7 on one edge of the mesh rubber band 1, attach a pair of connecting fittings to both ends of this rope, and then attach each rope fixing fitting 4 to each rope fixing hole 7. The rope fixing holes 8 are fixed to the nylon-coated wire rope 16 by crimping and arranging them so that the intervals are constant.

Each rope passing metal fitting 50 rope passing hole 9 on the other edge
When a pair of metal fittings having the function of tightening the rope by passing the nylon rope 15 through it are attached to both ends of the rope, the anti-slip device for automobile tires of the present invention is obtained.

Further, the rope passing fitting 5 shown in FIGS. 10a and 10b of the above embodiment is replaced with the metal fitting 6 shown in FIGS. 11a and 11b by the same manufacturing method as in the above embodiment. You can get anti-slip devices. In this case, a mesh rubber band is attached to the tire without using the nylon rope 15 for tightening, and after connecting the nylon coated wire rope 16 for tightening on the inside, each rope hook on the outside is connected to the rope hook on the metal fitting 6. For tightening, a ring-shaped rubber rope 17 is hung over the hook portion 11, and the tire is tightened and fixed.

The effects of the present invention are as follows.

FIG. 6 shows a state in which an embodiment of the present invention is mounted on a tire, and a cross section of this is shown in FIG. 7.

As is clear from a comparison between FIG. 7 and FIG. 8 showing the cross section of the conventional example, the metal fittings are molded to extend outward and protrude from the ends of each mesh on both sides of the rubber band. For installation, the core metal part is buried integrally within the rubber base to form a skeleton, and the tire tread part is sandwiched and tightened by pulling with a rope, so clay muddy water can be removed from the tire and the mesh. Even if it gets caught between the rubber band or receives a large unbalanced load such as when turning the steering wheel suddenly, it will not shift left or right or become eccentric, and it does not have the drawbacks of the conventional examples mentioned above, making it safe for automobile tires. It is characterized by being a non-slip device.

Also, even beginners can install it in the center of the tire, and the seventh
As seen in the figure, since the metal fittings can directly touch the tire side, the tire side is less likely to be damaged, thereby providing an excellent non-slip device for automobile tires that has never existed before.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view with a partially broken surface showing the configuration of a mesh rubber band according to an embodiment of the present invention, and Fig. 2 is a partial perspective view showing the attachment of a rope fixing fitting for a rope used for tightening in a conventional example. Figures 3 and 3 are the same (a partial perspective view showing the attachment of the metal fittings for the rope hook for the conventional tightening rope, and Figure 4 is the same)
A conventional example of tightening is a partial perspective view showing the attachment of a rope fixing fitting for a working rope, and Fig. 5 is the same. 7 is a perspective view of an automobile tire anti-slip device made of a mesh rubber band according to an embodiment of the present invention mounted on a tire; FIG. FIG. 8 is a cross-sectional view of a conventional automobile tyro anti-slip device attached to a tire; FIG. 9a is a top view of a rope fixing device according to an embodiment of the present invention; FIG. 9b The figure is a cross-sectional view taken along line B-B in figure 9a, and figure 10.
Fig. 10b is a cross-sectional view taken along line D-D in Fig. 10a, and Fig. 11a is a top view of a rope threading fitting according to an embodiment of the present invention. 11b is a top view of the hook fitting, and FIG. 11b is a sectional view taken along line FF in FIG. 11a. 1...Mesh rubber band 1'...Mesh rubber band of conventional example 2...Reinforcing fiber core 3...Rubber base for metal fittings 4...Rope fixing metal fitting 4'...Rope of conventional example Fixing fitting 5... Rope passing fitting 6... Rope hanging is hook fitting 6'... Conventional rope hanging is hook fitting 7... Rope fixing hole End... Rope fixing hole part 9.
...Rope passing hole 10...Rope passing hole part 11
...The rope hook is the hook part 12...The core part 13...
Rubber and metal fixing holes 14...all cores, tip hooks 15...for tightening nylon rope 16...for tightening nylon coated wire rope 17...
・Tighten with ring-shaped rubber rope l8...tire
19...Tyre wheel patent applicant Hayakawa Rubber Co., Ltd. 1st diagram 綜法し'' a9-

Claims (1)

[Scope of Claims] 1. A mesh rubber band with a reinforcing fiber core having approximately the circumference of the tire to be mounted, and respective metal fittings attached to each mesh on both side edges of the mesh rubber band; and respective tightening ropes for attaching and fixing the mesh rubber band along the circumference of the tire through the metal fittings, wherein the metal fittings used have holes through which the tightening ropes are passed. A rope fixing fitting having a fixing part for passing a tightening rope through it and fixing the fitting by caulking the fitting, and a rope hanging hook fitting having a hook part for hanging and attaching a tightening rope, and the three types of fittings One of the metal fittings used in conjunction with one or more of the following types is extended to provide a core metal part with a hook at the tip, and the hook at the tip is attached to each mesh on both sides of the mesh rubber band. At the metal fitting attachment rubber base, which is molded to extend and protrude outward from the end, it is hooked and locked onto the reinforcing fiber core built into the side edge of the mesh rubber band.
A non-slip tool for an automobile tire, characterized in that the entire core metal part is embedded and built-in.