JPH0424242B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anti-slip device for automobile tires for preventing automobile tires from slipping on snowy, frozen, muddy, etc. road surfaces, and a method for manufacturing the same. It is something.

In other words, in order to prevent vibration and noise, damage to the road surface, and to provide excellent durability, rubber chains for automobile tires such as ladder-type and net-type chains are used instead of conventional metal chains. Anti-slip devices have become popular. However, although these products have excellent anti-slip effects on fresh snow or compacted snow, they carry the risk of slipping on frozen roads, so in order to improve this anti-slip performance, nail-like spikes or other It is used with spike fittings in the shape of .

The present invention aims to improve the anti-slip function and durability by improving the method of attaching the spike fittings, and to provide an inexpensive automobile tire anti-slip device and its manufacturing method.

(Prior Art) Conventionally, the following non-metallic anti-slip devices made of rubber, plastic, etc. have been used, and the manufacturing methods thereof have been proposed.

Conventional method 1 (Utility Model Publication No. 59-14247): A roughly thumbtack-shaped spike is attached to each intersection of the mesh mold.
A string-like core material is stretched around the mold to form a mesh, and a covering material such as synthetic rubber is then filled on top of this mesh, which is vulcanized at the same time as press molding, and spikes are added at the intersections. To obtain an anti-slip device for an automobile tire which is fixed to a mesh core material and projected.

Conventional method 2: Ladder type anti-slip plate made of elastic material,
Alternatively, a non-slip device for an automobile tire is obtained in which a spike metal fitting such as a nail is embedded in a predetermined position of a net-type mesh anti-slip band at the same time as molding in a molding die so as to protrude.

Conventional method 3 (Utility Model Application No. 52-102607): A hole was made at the intersection of the meshes from the front to the back, and a nail-like spike was inserted into this hole from the back to the front, protruding, and fixed. Obtain an anti-slip device for automobile tires.

Conventional method 4: The same method as for spike tires, as shown in Figures 7a and 7b, that is, holes for spike metal fittings with a diameter smaller than the spike diameter and a desired depth are drilled on the surface of the anti-slip rubber body at a predetermined position. This is a non-slip device for automobile tires, in which a nail-shaped spike is driven into the hole using a spike metal driving machine to make it stick out.

Conventional method 5 (Japanese Patent Application Laid-open No. 51-64207): Anti-slip for automobile tires in which the diagonal line in one direction of the intersection of anti-slip mesh bands is wrapped in an oval shape and a non-slip fitting made of steel wire is caulked around it. Get the ingredients.

(Problems with the Prior Art) However, the above-mentioned conventional methods proposed or implemented have the following drawbacks.

In conventional method 1, it is difficult to secure the spike fittings in precise positions in a high-temperature vulcanization mold with a length of about 2 meters while knitting a core material with a length of 15 to 20 mm into a mesh. be. Furthermore, this method is inefficient due to the effort required to further fill the covering rubber onto the mesh core material.

In addition, if unvulcanized rubber strings containing a reinforcing core material are used in advance to perform mesh knitting work efficiently, the spikes will not be fixed to the core material, and the position of the spikes will shift slightly, resulting in defective products and metallurgical damage. It has the disadvantage of damaging the mold.

Conventional method 2 Because the diameter of the spike embedded in the elastic body and the diameter of the spike embedding hole in the molded elastic body are the same, the spikes are not tightly tightened and fixed by the elastic body, so they cannot be stretched while the car is running. ,
Otherwise, when subjected to strong stress such as bending, the spike embedding holes in the elastic body are stretched and enlarged, as shown in Figures 6a and 6b, and the spike fittings easily fall off. Although it is a simple method, there are problems that prevent it from being put into practical use.

Conventional Method 3 There is a drawback that the spike fittings are squeezed out by the pressure of the road surface and tires while the car is running, and easily fall off from the back side.

Conventional method 4 For tires with spikes, the back side of which is made up of strong cords, the rubber is thick, and spike fittings with a length of 10.5 mm or more are driven into this, Figures 7a and 7b are used. This is an effective method because it tightens and holds the nail-like spike metal fittings more strongly than the one shown in the figure.

When using anti-slip devices for automobile tires, such as those shown in Figures 7a and 7b, nail-shaped spikes with a length of 10.5 mm or more are less likely to fall off while the car is running; In this case, the thickness and width of the anti-slip rubber body become excessive, resulting in high cost and difficulty in handling. In addition, when running with rubber as thick as 15 mm caught between the road surface and the tires, there is a drawback that slippage occurs in the vertical and lateral directions on a dry road surface, impairing running stability.

For anti-slip rubber bodies with a thickness of 7 to 10 mm, which is suitable for use as anti-slip devices for automobile tires, this method can be used to strongly support the spike fittings, as shown in Figures 8a and 8b. The biggest drawback is that it cannot be done.

Conventional method 5: It is easy to install, has a high anti-slip effect, causes little damage to the road surface, and does not fall off even when subjected to excessive stress. However, when soft metal is used, it wears out quickly. and fell off,
If hard metal is used, the strain caused by bending it into an elliptical shape will cause metal fatigue, and the repeated stress during running will combine with metal fatigue, causing it to break and fall off quickly. Even if you select a metal with an appropriate hardness,
On dry road surfaces, it has the disadvantage of falling off after 150km to 250km.

(Means for Solving the Problems) As a result of the study to improve the drawbacks of the above-mentioned conventional method, the present invention has developed the conventional method 2, which has a simple manufacturing method, as shown in FIGS. 6a and 6b. Focusing on improving the drawbacks shown in the following, we investigated bonding methods between metal and rubber and various methods of reinforcing rubber, and found that the present invention is the best.

The present invention has a large anti-slip effect at predetermined locations of the anti-slip rubber body, has excellent wear resistance and is durable.
To provide an inexpensive and safe anti-slip device for automobile tires in which macaroni-shaped or nail-shaped spike fittings, which are inexpensive and easily available on the market, are firmly embedded and protrude without any effort, and a method for manufacturing the same. It is something to do.

A desired macaroni-shaped or nail-shaped rubber net-type or ladder-type anti-slip device for automobile tires is attached to the outer periphery of an automobile tire at the desired intersection of the nets or at the position of the strip-shaped rubber plate of the ladder. In an anti-slip device for automobile tires consisting of partially embedded and planted spike fittings with flanges, a rubber compound in the area of the intersection or strip-shaped plate portion where the spike fittings are buried, based on 100 parts by weight of rubber, Thickness is 0.8~15.0 denier, length is 1~
It is characterized in that it is made by mixing and dispersing 2 to 20 parts by weight of 10 mm short fibers to form an oriented compound, which is then vulcanized and molded simultaneously.

A desired macaroni-shaped or nail-shaped rubber net-type or ladder-type anti-slip device for automobile tires is attached to the outer periphery of an automobile tire at the desired intersection of the nets or at the position of the strip-shaped rubber plate of the ladder. A method of manufacturing an anti-slip device for an automobile tire in which a part of a spiked metal fitting with a flange is embedded and planted and simultaneously vulcanized and molded, wherein a rubber compound is added in the area of the intersection or the strip-shaped plate portion where the spiked metal fitting is buried. The thickness is 0.8 to 100 parts by weight of rubber.
2 to 15.0 denier short fibers with a length of 1 to 10 mm
20 parts by weight mixed dispersed and oriented formulation and none;
It is characterized by simultaneous vulcanization molding.

That is, for 100 parts by weight of rubber in the rubber compound,
Surround the outer periphery of the spike fittings using a rubber compound made by mixing and dispersing 2 to 20 parts by weight of short fibers with a thickness of 0.8 to 15 denier and a length of 1 to 10 mm.
This anti-slip tool for automobile tires is characterized in that it is embedded in a predetermined location of a rubber compound not containing short fibers forming the anti-slip tool body and vulcanized and molded.

In addition, in the above-mentioned short fiber-containing rubber compound, the surface of the short fibers has been previously treated with resorcinol, formalin, or latex (abbreviated as RFL treatment) in order to firmly bond the rubber and fibers and improve the reinforcing effect. It is characterized by using short fibers.

Moreover, in order to obtain the rubber compound containing short fibers,
When using surface-untreated short fibers, the surface-untreated short fibers are mixed and dispersed in a rubber compound in which resorcinol resin, methylene donor, and finely divided hydrated silicon oxide are added in advance. It is characterized by using a material that is oriented in such a manner that the

Next, to explain the operation of the present invention, the structure of the cross section is shown in FIGS. 2 and 4, and the stress and elongation of the outer peripheral area of the spike metal fitting 5 or 6 are shown in FIG. Show relationships. It is composed of short fiber-containing rubber 4 that has very little elongation against stress, and furthermore, its outer periphery is composed of a non-slip main body rubber 3 without short fibers that has high elongation against stress. By using almost the same rubber as the anti-slip main body rubber 3, during vulcanization molding,
During this time, the bond is completely strong, so even if the embedded part of the spike fittings 5 or 6 is subjected to strong tensile stress or large stretching stress due to bending as shown in FIG. Only by being stretched, there is almost no gap between the spike metal fittings 5 or 6 and the short fiber-containing rubber 4.

From this, we have found that ladder-type and net-type anti-slip body rubber with a thickness of 7 to 10 mm, which is considered to be the most appropriate for anti-slip effects as anti-slip devices for automobile tires and stability of vehicle handling, are used for a long time. Sa5~7.5
mm, center diameter is 5.5mm, flange diameter is 10mm,
Even though conventional methods use spike fittings that easily fall off, the method of the present invention was used to manufacture anti-slip fittings for automobile tires, which were mounted on tires and tested for 500 km under severe conditions. However, none of the spike fittings fell off, demonstrating good anti-slip properties. As described above, the anti-slip device for automobile tires and the method for manufacturing the same according to the present invention have excellent characteristics.

The rubber used in the present invention can be either natural rubber or synthetic rubber, but
Carbon black-reinforced rubbers such as natural rubber, styrene-butadiene copolymer rubber, and polybutadiene rubber, which have excellent abrasion resistance and high strength, are preferable. Mix and use medicinal materials.

Next, the short fibers used in the present invention include natural fibers,
Although any synthetic fibers can be used, polyester fibers, nylon fibers, vinylon fibers, aramid fibers, and the like are preferred because their short fibers are not easily cut and shortened when kneaded into rubber. The stress at low elongation of rubber containing short fibers is determined by the aspect ratio of the short fibers (length/
The larger the diameter), the larger the blended volume fraction, and the stronger the bonding force between the rubber and the short fibers, the larger the fibers become.

However, in consideration of dispersion in the rubber, appearance of the product, flexible elasticity, abrasion resistance, bending resistance, and strength, the thickness of the short fibers in the short fiber-containing rubber composition used in the present invention is determined as follows: The denier is preferably 1 to 8 denier, and the length is preferably 1 to 6 mm. In addition, the blending amount of short fibers is based on 100 parts by weight of rubber in the rubber compound.
The amount is preferably 2 to 12 parts by weight, and if a large amount is blended, the above-mentioned functions will be degraded.

Further, in order to strengthen the bond between the short fibers and the rubber, it is desirable to treat the surface of the short fibers with an adhesive component.

Aramid short fibers are subjected to a special surface treatment, but the surfaces of other short fibers are preferably treated with resorcinol, formalin, or latex (RFL treatment), which is an adhesive component. When blending RFL-treated short fibers, the rubber compound should contain a resorcinol resin as a methylene acceptor, hexamethylenetetramine or melamine resin as a methylene donor, and a finely divided hydrated oxidized resin as an adhesive reinforcing agent. Good results are obtained using rubber compounds containing silicon (silica).

The spike metal fittings used by embedding them in the short fiber-containing rubber compound by the method of the present invention are effective for any shape. The tack-like spike metal fittings, which have the disadvantage of falling off, are firmly fixed.

This rivet-like spike fitting is easy to manufacture, has good precision and appearance, and is made of hardened carbon steel or a highly wear-resistant spy tool with a cemented carbide chip attached to its tip. , which has the advantage of being available in large quantities at low cost. As the reinforcing core material, connecting fittings, tightening ropes, etc. used in the present invention, those conventionally used can be used.

(Example) Examples of the present invention will be described below.

(Example formulation 1) Anti-slip main body rubber formulation (parts by weight) Natural rubber 100 Zinc white 5 Stearic acid 3 Carbon black (HAF) 50 Anti-aging agent (octylated diphenylamine) 1 Process oil 3 Sulfur 2.5 Accelerator (dibenzothiazyl) Disulfide) 1 Accelerator (tetramethylthiuram disulfide)
0.2 165.7 (Example formulation 2) Rubber formulation with short fibers (parts by weight) Natural rubber 100 Zinc white 5 Stearic acid 3 Carbon black (HAF) 50 Anti-aging agent (octylated diphenylamine) 1 Process oil 3 Sulfur 2.5 Accelerator (dibenzo thiazyl disulfide) 1 Accelerator (tetramethylthiuram disulfide)
0.2 RFL treated polyester staple fiber (thickness 6 denier,
Length: 4 mm) 8 173.7 Example 1 The manufacturing method and structure of an example of the ladder-type anti-slip tool shown in FIGS. 1, 2, and 9 will be described.

Step 1 The anti-slip main body rubber composition of Example Formulation 1 is kneaded using a rubber kneading roll and rolled into rubber plates of 6 mm and 4 mm thickness.

Step 2 Knead the short fiber-containing rubber mixture of Example Formulation 2 using a rubber kneading roll machine, and
Roll into a rubber plate with a thickness of mm.

Step 3 The 6mm rubber plate obtained in step 1 is
Cut a strip of 230 mm x 22 mm into a shape with holes of 14 mm in diameter at two locations where the spike metal fittings will be buried.

Step 4 230 mm rubber plate obtained from step 1
Cut into strips of mm x 22 mm.

Step 5 Cut a rubber ring with an inner diameter of 5.5 mm and an outer diameter of 14 mm from the 6 mm short fiber-containing rubber plate obtained in Step 2. Insert and fit the macaroni part of the macaroni-shaped spike fitting 5 shown in Fig. 2 with a macaroni part diameter of 5.5 mm and a diameter of the flange part 8 of 10 mm into this ring-shaped rubber. The rubber plate is prepared in advance by fitting and embedding it into two holes of a strip-shaped rubber plate having several holes.

Step 6 U of the left and right connecting fittings 11 shown in Figure 1
Preparation is made in advance by tying the reinforcing core material 10 of a predetermined length continuously between the character parts.

Step 7 Lower vulcanization molds of upper and lower vulcanization molds having a rectangular recess forming a non-slip pattern and a protrusion as shown in FIG. A strip of rubber with the spike metal fittings 5 prepared in advance in step 5 embedded therein is placed and fitted into the mold, and on top of this, the connecting metal fittings 11 and reinforcing core material 10 prepared in step 6 are placed, and the left and right connections are placed. The metal fitting 11 is arranged and fitted into the housing part. On top of this,
Arrange the 4mm strips of rubber cut in step 4,
Then, the upper vulcanization mold is fitted, and the press vulcanizer presses and heats it to vulcanize it, and then it is taken out from the mold and deburred, as shown in Figures 1 and 2. A ladder-type anti-slip plate 1 as shown is obtained.

Step 8 Pass one tightening rope 13 of a predetermined length on the left and right through the left and right round holes of the connecting fittings 11 of the ten ladder-type anti-slip plates 1, and connect the connecting fittings by placing them in parallel at a predetermined interval. The ladder type anti-slip plate 1 is firmly fixed to the ladder type by caulking the round holes 11. Next, connecting fittings (not shown) having a commonly used tightening mechanism are attached to both ends of the left and right tightening ropes to obtain the ladder-type anti-slip device for automobile tires of the present invention.

Step 9 Place the ladder-type anti-slip device on the tire 14 as shown in FIG. 9, and tighten the left and right tightening ropes 13 to firmly fix it.

Example 2 The manufacturing method and structure of an example of the net-type anti-slip device shown in FIGS. 3 and 4 will be described.

Step 1 The anti-slip main body formulation of Example Formulation 1 is kneaded using a rubber kneading roll machine and rolled into a ribbon-shaped rubber to be fed to an extruder.

Step 2 Using a rubber extruder equipped with a crosshead, feed the ribbon-shaped rubber obtained in Step 1 to the rubber extruder while feeding the reinforcing core material 10 made of FRL-treated polyester fibers from the crosshead to a rubber extruder with a diameter of 10.5. An unvulcanized rubber cord containing 10 mm of reinforcing core material is extruded.

This is knitted into a mesh using a mesh preparation mold made of a mesh guide having a shape excluding the buried portion of the connecting fitting 11 and the buried portion of the tightening rope threading fitting 12 shown in FIG. 3 to prepare the mesh in advance.

Step 3 Extrude the ribbon-shaped rubber obtained in Step 1 into a pipe shape with an inner diameter of 4.5 mm and an outer diameter of 12 mm using a rubber extruder. This pipe-shaped rubber is cut to a predetermined length, and prepared in advance by inserting it into the rubber-embedded portions of the connecting fitting 11' and the tightening rope fitting 12 shown in FIG.

Step 4: Knead the short fiber-containing rubber mixture of Example Formulation 2 using a rubber kneading roll machine to obtain a thickness of 5.
Roll into rubber plates of mm and 3 mm, respectively.

Step 5 Punch a number of holes with a diameter of 5.5 mm at 20 mm intervals both vertically and horizontally on the 5 mm short fiber-containing rubber plate rolled in step 4. Each hole is fitted with a 5.5 mm diameter flange 8 having a cemented carbide tip 7 at the tip as shown in FIG.
Insert the 5.5 mm diameter part of the nail-shaped spike fitting 6 with a diameter of 10 mm, gelatinize the rubber plate surface on the flange 8 side with a solvent, and add the 3 mm short fiber-containing rubber obtained in step 4 on top of this. Place the boards on top of each other, press them together, and paste them together.
The nail-like spike fittings 6 are buried. Next, a trapezoid of a predetermined shape is formed around this nail-like spike metal fitting 6,
Each piece is punched and cut and preformed in advance.

Step 6: The nail-shaped spike metal fittings 6 shown in Fig. 3,
A mesh rubber part, a concave part on the left and right of which molds the rubber embedded part of the connecting fitting 11' and the tightening rope passing fitting 12, the connecting fitting 11' continuous with this, the tightening rope passing fitting 12, and its round hole. The unvulcanized mesh rubber containing the reinforcing core material 10 prepared in advance for mesh forming in step 2 is placed in the mesh recesses of the lower vulcanization molds of the upper and lower vulcanization molds having recesses for accommodating the parts.
Fit together.

Next, the short fiber-filled trapezoidal rubber pieces in which the nail-shaped spike metal fittings 6 preformed in step 5 are embedded are placed at predetermined positions and fitted.

Next, the connecting fitting 11' into which the rubber prepared in step 3 has been inserted, the rubber portion of the tightening rope passing fitting 12, and the round hole portion are arranged and fitted to each fitting portion.

Next, an upper vulcanization mold is fitted thereon, and a press vulcanizer is used to apply pressure and heat to perform vulcanization molding.

Next, this is taken out from the vulcanization mold and deburred to obtain the mesh-like anti-slip rubber band 2 shown in FIGS. 3 and 4.

Step 7: Pass the tightening rope 13 of a predetermined length through the round hole of each connecting fitting 11' on one side of the mesh-like anti-slip rubber band 2, and connect each connecting fitting 11'.
Connecting fittings 1 are arranged at predetermined intervals.
Caulk the round hole 1' to securely fix it. Connecting fittings (not shown) are attached to both ends of this tightening rope 13 to connect them.

Next, insert a predetermined length of tightening rope 1 into the round hole of each tightening rope fitting 12 on the other side.
3 and attaching connecting fittings (not shown) having the function of tightening and tightening the rope to both ends of the tightening rope 13, the net-type automobile tire of the present invention shown in FIGS. 3 and 4 is attached. Acts as an anti-slip device.

Step 8 Place the side of the net-type anti-slip device with the tightening rope fitting 12 on the tire 14 so that it is on the outside of the car, as shown in Figure 10, and connect both ends of the inner tightening rope. The metal fittings are connected, and then the connecting metal fittings at both ends of the outer tightening rope are connected, and the tightening rope 13 is strongly pulled and tightened to firmly attach it to the tire 14.

As described above, the present invention provides a ladder-type and net-type anti-slip device for automobile tires that can prevent spike fittings from falling off, which is a disadvantage of the conventional method, with a small number of man-hours and at low cost, and a method for manufacturing the same.

(Effects of the Invention) Conventionally, nail-shaped spike fittings and macaroni-shaped spike fittings with a length of 8 mm or less and a flange diameter of about 10 mm have been implanted by driving into holes in vulcanized rubber, or by embedding vulcanized rubber. The spike fittings were obtained by embedding them in rubber at the same time as they were molded, and it was a well-established theory that the spike fittings would fall off while the car was running. However, the present invention improves this drawback and has the following advantages.

(1) Since the short spike metal fittings can be firmly embedded and fixed in the rubber, it is possible to reduce the thickness of the anti-slip rubber body itself. Therefore, it is not difficult for the tire to be caught between the tire tread and the road surface, and the vehicle has excellent steering stability and safety.

Furthermore, since the spike fittings do not fall down between the tire tread surface and the road surface, the anti-slip effect is great.

(2) No spike fittings fall off even during long and harsh driving.

(3) Slightly fewer man-hours than the conventional method of embedding spike metal fittings.

(4) Since the length of the spike fittings of the spiked tire, for which the production method has been established for a long time, is simply shortened, it is inexpensive and easily available.

(5) Since the spike metal fittings have a well-established manufacturing method, they have excellent wear resistance and slip prevention effects.

As described above, the present invention provides an inexpensive and excellent anti-slip device for automobile tires and a method for manufacturing the same.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the structure of a ladder-type anti-slip plate according to an embodiment of the present invention;
The figure is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a partially broken perspective view showing the structure of a net-type anti-slip device according to another embodiment of the present invention. , FIG. 4 is a sectional view taken along line B-B in FIG. 3, and FIG.
The figure is a sectional view showing the state of the spike metal fittings and rubber produced by bending the embedded part of the spike metal fittings according to an embodiment of the present invention, and Figure 6a shows the spikes produced by bending the embedded part of the spike metal fittings according to a conventional method. A cross-sectional view showing the state of the metal fittings and rubber, Figure 6b is the same as Figure 6a.
Fig. 7a is a sectional view showing a state in which a conventional spike metal fitting is buried by the driving method, and Fig. 7b shows a driving hole of the spike metal fitting shown in Fig. 7a. The cross-sectional view, Figure 8a, is a cross-sectional view showing the spike metal fittings embedded in thin rubber by the driving method, and Figure 8b,
FIG. 8a is a cross-sectional view showing the driving hole of the spike fitting shown in FIG. 9, FIG. 9 is a perspective view showing a state in which a ladder type anti-slip device according to an embodiment of the present invention is attached to the outer circumference of a tire, and FIG. , a perspective view showing a state in which a net-type anti-slip device according to another embodiment of the present invention is attached to the outer periphery of a tire, and FIG. It is a line diagram showing a relationship. 1...Ladder type anti-slip plate, 2...Mesh anti-slip rubber band, 3...Non-slip main body rubber, 4...Rubber with short fibers, 5...Macaroni-shaped spike fittings, 6...Nail-shaped spike fittings , 7... Cemented carbide at the tip of the spike fitting, 8... Spike fitting flange, 9... Driving hole for the spike fitting, 10... Reinforcement core material, 11, 11'... Connection fitting, 12... For tightening Rope passing fitting, 13...Tightening rope, 14...Tire.

Claims (1)

[Scope of Claims] 1. A rubber net-type or ladder-type anti-slip device for automobile tires that is attached to the outer periphery of an automobile tire. In the anti-slip device for automobile tires, which is made by partially embedding and planting macaroni-shaped or nail-shaped spike fittings with flanges, a rubber compound is added to the area of the intersection or strip-shaped plate where the spike fittings are buried. To 100 parts by weight, 2 to 20 parts by weight of short fibers with a thickness of 0.8 to 15.0 denier and a length of 1 to 10 mm are mixed and dispersed to form an oriented compound, which is simultaneously vulcanized and molded. An anti-slip device for automobile tires characterized by comprising: 2. The anti-slip device for automobile tires according to claim 1, characterized in that the short fibers are short fibers that have been previously treated with resorcinol, formalin, or latex. 3. When mixing and dispersing the surface-untreated short fibers in a rubber compound, a resorcinol resin, a methylene donor, and a finely divided hydrated silicon oxide are added in advance to the rubber compound. An anti-slip device for automobile tires according to claim 1. 4. A desired macaroni-shaped or nail-shaped rubber net-shaped or ladder-type anti-slip device for automobile tires that is attached to the outer periphery of an automobile tire is placed at the desired intersection of the nets or at the position of the strip-shaped rubber plate of the ladder. A method for manufacturing an anti-slip device for automobile tires in which a part of a flanged spike fitting is buried and planted and simultaneously vulcanized and molded, the rubber compounding in the area of the intersection or strip-shaped plate where the spike fitting is buried. The product is prepared by mixing and dispersing 2 to 20 parts by weight of short fibers with a thickness of 0.8 to 15.0 denier and a length of 1 to 10 mm to 100 parts by weight of rubber, making an oriented compound, and simultaneously adding it into one piece. A method for manufacturing an anti-slip tool for automobile tires, which comprises sulfur molding. 5. The method for manufacturing an anti-slip device for automobile tires according to claim 4, characterized in that the short fibers are short fibers that have been previously treated with resorcinol, formalin, or latex. 6. When mixing and dispersing the surface-untreated short fibers in a rubber compound, a resorcinol resin, a methylene donor, and a finely divided hydrated silicon oxide are added in advance to the rubber compound. A method for manufacturing an anti-slip device for automobile tires according to claim 4.