JPH1120431A - Tire anti-skid device and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide structure that can improve the bending property of a blade in a tire anti-skid device and a manufacturing method. SOLUTION: After forming a metal chain a1 constituting a ground range of an anti-skid device body (a), the metal chain a1 is fixed as it is in a blade molding die without applying degreasing treatment and adhesive applying treatment, and unvulcanized rubber filled in the molding die is vulcanization-molded to cover a blade 1. The surface of the metal chain a1 and rubber material 1a are put in a free state so as to improve the bending property of the blade 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-slip device for a tire, and more particularly to a non-slip device body in which a ground portion is formed of a metal chain, and the surface of the metal chain is coated with a rubber material or a synthetic resin material. The present invention relates to a non-slip device for a tire, comprising a blade.

[0002]

2. Description of the Related Art Conventionally, among non-slip devices for tires which are used by being wound around an outer periphery of a tire, there is a device in which a main body of the anti-slip device is constituted by a metal chain. These metal chains include a turtle chain having a turtle-shaped chain connection pattern and a ladder type having a substantially ladder shape, and have an advantage that they can be manufactured relatively inexpensively. However, in the metal chain as described above, the metal chain directly contacts the road surface, and at the same time, the chains come into heavy contact with each other, so that the noise generated during traveling increases. In addition, the vibration is intense because the hard chain intermittently contacts the dry road surface and the frozen road surface.
Since the chain in the ground area wears relatively quickly,
There was a problem in durability against running on dry roads.

Accordingly, the applicant of the present application has filed Japanese Patent Application No. 8-940.
As in the tire anti-slip device of No. 40, the ground portion of the metal chain is covered with a rubber material to form a blade, and a part of the metal chain is exposed to a part of the blade, thereby using a rubber blade. We have developed a device that achieves a good balance between the noise and vibration reduction effect and the spike effect of the exposed metal chain.

In the above-mentioned anti-slip device for a tire, a surface of a metal chain constituting a ground contact portion is subjected to a shot blasting process to perform a degreasing treatment, and then a rubber or metal adhesive is applied to the surface of the metal chain. And dry. Then, the metal chain is fixed in a molding die, filled with a rubber material in the molding die, and vulcanized to form a blade having a predetermined shape at a ground portion of the metal chain. Further, a metal chain is partially projected from the surface of the blade so as to function as a spike.

[0005]

As described above, the anti-slip device for a tire in which the blade is formed on the ground portion of the metal chain, the metal chain of the ground portion forming the blade and the covering rubber material are formed by: From the viewpoint that the rubber coating should be firmly bonded to prevent damage and falling off of the coated rubber material and increase the durability of the blade, the surface for firmly bonding the rubber material to the surface of the metal chain The processing was sufficiently performed. That is, in the conventional anti-slip device for a tire, the surface of the metal chain is shot blasted to perform a degreasing process, and further, a rubber and a metal adhesive are applied, and then the metal chain is coated with a rubber material. The blade was configured. The anti-skid device for tires manufactured in the manufacturing process as described above has a rubber member integrally and firmly adhered to the metal chain, so that a high-strength blade can be formed, and it can be used for a long time. Also, the rubber material did not break, and the required durability could be sufficiently exhibited.

However, as described above, in a blade formed by firmly bonding a rubber material to the surface of a metal chain, the metal chain and the rubber material are integrated, and the bending of the metal chain is considerably restricted by the deformation stress of the rubber material. Therefore, the blade itself tends to be hard and difficult to bend. Therefore, when the anti-skid device for a tire configured as described above is wound around the outer periphery of the tire, it is difficult to accurately adhere the blade while bending the blade along the ground contact surface and the inner and outer shoulder portions of the tire. In some cases, installation work took time. Further, in the conventional anti-slip device for a tire as described above, a shot blasting process and a coating process of rubber and a metal adhesive are performed on the surface of the metal chain, and a drying process is required after the adhesive coating process. Therefore, it takes a considerable amount of time and effort only for the steps necessary for the surface treatment.

A combination of a metal chain and a rubber material is disclosed in FIG.
As in the tire anti-slip device of No. 14, the rubber string 1 is inserted into the hole 102 of each chain element 101 of the cross chain 100.
A structure has been developed in which the noise and the impact when the cross chain 100 is grounded are reduced by inserting the 03 in a meandering shape. As in the anti-slip device for tires described above, each hole 102 in the cross chain 100
When the rubber string 103 is inserted in a meandering shape, noise and impact at the time of grounding can be reduced to some extent by the cushioning effect of the rubber string 103.
There is no decrease in the flexibility of the 00. However, rubber strap 1
Since the protruding portion of 03 comes into partial contact with the road surface and is worn and cut off early, there is a problem in terms of durability.

It is an object of the present invention to provide a structure for improving the flexibility of a blade, and a method for manufacturing the same, in relation to the above-described anti-skid device for a tire.

[0009]

In order to solve the above-mentioned problems, according to the manufacturing method of the present invention, at least a ground contact area of a main body of a non-slip device wound around a tire is constituted by a metal chain. A method for manufacturing a non-slip device for a tire, comprising a blade formed by coating a metal material in a predetermined shape with a rubber material, wherein the metal chain in the ground range is directly placed in a mold for blade molding as it is, and The metal chain is coated with a rubber material by filling with unvulcanized rubber and vulcanized to form a blade.

[0010] The metal chain constituting the non-slip device main body is set in a molding die as it is. In addition, as described above, to be fixed in the mold as it is, the metal chain as manufactured, such as degreasing treatment and adhesive application treatment,
That is, it is to be placed in a mold for blade molding without performing a surface treatment for increasing the adhesive strength with the rubber material.

The inside of the mold is filled with unvulcanized rubber, and vulcanized into a predetermined shape while being pressurized and heated in the mold to form a predetermined shape on the surface of the metal chain. The rubber material layer is coated and formed to form a blade. The blade is formed by coating a rubber material on a surface of a metal chain in a predetermined shape.
The interface between the surface of the metal chain, which has not been subjected to the degreasing treatment and the adhesive application treatment, and the rubber material layer has a weak adhesive force and is in a released state. Therefore, the metal chain and the rubber material layer constituting the blade are freely displaced with the bending of the metal chain, whereby the flexibility of the blade is ensured.

According to the manufacturing method of the present invention, a tire in which at least a ground contact area of a non-slip device body wound around a tire is constituted by a metal chain, and the metal chain is coated in a predetermined shape with a rubber material to form a blade. A method of manufacturing a non-slip device for a vehicle, comprising: performing a non-adhesion treatment on a surface of a metal chain in the grounding range; placing the metal chain in a mold for blade molding; The metal chain is coated with a rubber material by filling with vulcanized rubber and vulcanized to form a blade.

As described above, the adhesive force at the interface between the surface of the metal chain subjected to the non-adhesion treatment and the coating rubber material layer is even weaker than that of the above-mentioned claim 1, and the coating rubber material of the blade is , Almost completely separated from the surface of the metal chain. Therefore, the metal chain constituting the blade and the covering rubber material can be freely shifted with the bending of the metal chain, and the flexibility of the blade is improved.

According to a third aspect of the present invention, at least the ground contact area of the anti-slip device body wound around the tire is formed by a metal chain, and the metal chain is coated in a predetermined shape with a rubber material to form a blade. A non-slip device for a tire, wherein a non-adhesive state is provided between a metal chain in the ground range and a rubber material covering around the metal chain. According to the above-described means, since the metal chain and the rubber material constituting the blade are in a non-adhered state, the metal chain and the rubber material are freely shifted with the bending of the metal chain. And the flexibility of the blade is improved.

According to a fourth aspect of the present invention, at least the ground contact area of the anti-slip device body wound around the tire is constituted by a metal chain, and the metal chain is coated in a predetermined shape with a synthetic resin material to constitute a blade. A non-slip device for a tire, wherein the metal chain in the ground contact area,
A non-adhesive state is formed between the metal chain and a synthetic resin material covering the periphery of the metal chain.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The antiskid device A for a tire shown in FIGS. 1 to 6 includes inner and outer side chains a2 and a3 made of a metal chain, and these side chains a2 and a3.
A substantially ladder-type non-slip device main body a is constituted by a large number of cross chains a1 connected to each other, and a rubber material 1a is coated on a grounding area of the main body a, that is, an intermediate portion of each cross chain, so that the blade 1 is formed. It is composed.

The anti-slip device body a has an inner side chain a2 made of a metal chain and an outer side chain a3 arranged in parallel at a predetermined interval, and a cross between the two side chains a2 and a3. A chain a1 and a cross chain a1
Are arranged at regular intervals in the longitudinal direction of both side chains a2 and a3 to form a substantially ladder shape.

As shown in FIGS. 1 and 4, a rubber material 1a is thickly covered to form a blade 1 in a range corresponding to the tire contact surface of each of the cross chains a1. That is, the blade 1 is configured by a metal chain and a rubber material coated on its surface. The blade 1 is formed in a substantially columnar shape by covering a rubber material 1a at least in a range of a length substantially equal to a width of a tire grounding surface in a cross chain a1 forming a grounding range of the anti-slip device main body a. .

By the way, the rubber material 1 of the blade 1 described above is used.
"a" is coated on the surface of the cross chain a1 in a state where it is not adhered or in a state where it is adhered by a weak adhesive force such that it is easily released. As described above, between the surface of the cross chain a1 and the rubber material 1a,
By joining in a non-adhered state or in a state where it is easily released, the members between the cross chain a1 and the rubber material 1a are freely shifted with the bending of the cross chain a1,
In addition, the rubber material 1a is also easily deformed independently of the cross chain a1, and as a result, the blade 1
It will flex itself. Since the blade 1 has excellent flexibility, the blade 1 is naturally adhered along the outer peripheral surface of the tire in the mounted state, and is mounted in a state of being adjusted to the tire.

As described above, in order to separate the cross chain a1 from the rubber material 1a, the surface of the as-manufactured cross chain a1 is coated with the rubber material 1a as it is, or the cross chain a1 is formed. After the surface is subjected to a non-adhesion treatment, the rubber material 1a is coated and molded. The details of the non-adhesion treatment will be described later in the description of the manufacturing method.

The blade 1 has a rubber member 1a which is a part of each chain element a 'constituting the cross chain a1.
The blade 1 is exposed so as to slightly protrude from the surface thereof, and the exposed portion 1 b functions as a spike protruding from the surface of the blade 1. The exposed portion 1b is formed in a staggered manner on the ground surface and both front and rear sides of the blade 1 and is not provided on the tire outer peripheral surface side of the blade 1. That is, coating is performed in a state where the insertion position of the cross chain a1 in the cross section of the rubber material 1a is shifted to the surface side from the axis of the cylindrical rubber material 1a (FIG. 3).

The blade 1 is configured such that a part of the cross chain a1 is exposed in a staggered manner on its surface.
The blade may be configured by covering the cross chain a1 entirely with a rubber material. In this case, although the spike effect of the blade is weakened, it is possible to reduce noise generated when the vehicle is running on a dry road surface where the asphalt road surface is exposed, and it is possible to avoid generation of dust due to the spike.

As shown in FIGS. 2 and 3, the antiskid device A for a tire constructed as described above is wound around the outer periphery of the tire C, and is provided with connection fittings provided at both ends of both side chains a2 and a3. After connecting 2a and 2b, a fastening device g made of a rubber band is hooked and mounted on the outside of the tire C via a hook metal g1 so that the tire anti-slip device A wound around the outer periphery of the tire C is mounted on the tire C. C Attach it by tightening it to the outer peripheral surface.

In the above-described anti-skid device A for a tire, the device main body a has a substantially ladder shape. However, in the anti-slip device of the present invention, at least the grounding range of the device main body is formed by a metal chain. Any form may be used as long as the metal chain is covered with a rubber material to form a blade. For example, in the present invention, the pattern of the metal chain a1 'constituting the grounding range of the device main body is formed in a turtle-shape like the antiskid device A2 for a tire shown in FIG. 7, and the metal chain a1' is described above. A blade 1 similar to the blade 1 may be formed. Further, the shape of the blade is not limited to the above-mentioned shape, and may be, for example, a square cross section or a polygon cross section. Further, the two side chains of the apparatus main body are not limited to chains, but may be other than chains, such as ropes and wires.
In the tire anti-slip device A of the embodiment, the exposed portion 1b exposed on the surface of the blade 1 is staggeredly projected on the grounding surface of the blade 1 and both front and rear sides. The arrangement may be changed arbitrarily. For example, as shown in a blade 1 ′ shown in FIG. May be exposed.

Next, the above-described anti-skid device A for tires
Will be described. As described above, the apparatus main body a made of a metal chain is formed in a substantially ladder shape, and then the cross-chain a1 is coated with a rubber material 1a to form the blade 1.

Each cross chain a1 of the apparatus main body a
Is a rubber material 1a such as a degreasing process or a rubber-metal adhesive process.
The process proceeds to the step of coating and forming the rubber material 1a in the manufactured state without any surface treatment for increasing the adhesive strength with the rubber material 1a. In addition, the cross chain a as it is manufactured
1 may be a state where the metal background is directly exposed or a state where a plating process is performed. That is, in the conventional manufacturing method, a degreasing step, a rubber and metal adhesive treatment,
Although the rubber material was firmly adhered to the surface of the cross chain by performing the rubber adhesive application process, in the manufacturing method of the present invention, all of the above-described processes can be omitted.

FIG. 8 shows a molding die d used when molding the blade 1 on the cross chain a1 of the antiskid device A for a tire. The molding die d is composed of an upper die d1 and a lower die d2 that can be divided.
A holding recess 30 that fits and holds the cross chain a1 portion of the non-slip device main body a, and a cavity 40 that covers and forms the rubber material 1a on the cross chain a1 held in the holding recess 30. It is recessed.

The holding recess 30 recessed in the divided surface of the upper and lower dies d1 and d2 is provided with the cross chain a of the non-slip device main body a.
One full length and a part of both side chains a2 and a3 connecting both ends of the cross chain a1 are fitted and held in a deployed state. The holding recess 30 has a substantially oval-shaped recess 30a so as to fit and hold each of the chain elements a 'which are alternately connected to each other at an angle of approximately O-shape and I-shape in plan view, and a groove-shaped recess. 30b formed alternately at the same interval as the chain element a 'constituting the non-slip device main body a.

Each of the recesses 30a and 30b is provided with a lower mold d2.
In the case of, the lower half of the chain element a 'is formed to have a depth to be accommodated, and in the case of the upper die d1, the upper half of the chain element a' is formed to have a depth to accommodate. Therefore, in a state where the chain element a 'is fitted into the concave portions 30a and 30b of the lower mold d2, the lower half of each chain element a' is
a, 30b, and the upper half protrudes from the dividing surface.

The cavity 40 is a concave portion for covering and molding the rubber material 1a into a substantially cylindrical shape around the cross chain a1 fitted and held in the holding concave portion 30.
A substantially semicircular concave groove for forming the rear half of the rubber material 1a is formed on the split surface of the upper mold d1, and the front half of the rubber material 1a is formed on the split surface of the lower mold d2. A concave groove having a substantially semicircular cross section is formed.

The cavity 40 is provided with a cross chain a
1 is recessed so as to overlap with the holding recess 30 into which the hole 1 is inserted. Therefore, the recess 30 provided in the cavity 40
The portions a and 30b do not overlap with the space in the cavity 40, and the other portions are formed on both sides of the cavity 40 (FIGS. 8 and 9).

As shown in FIG.
The center of thickness of the cross-chain does not coincide with the axis of the cross-chain a1, and the relationship of Y1 = Y2 and Y1> Y3 is maintained so that the chain from the surface of the rubber material 1a that covers the cross-chain a1 in a substantially cylindrical shape. A part of the element a 'is exposed and slightly protrudes, while the back side of the rubber material 1a is configured such that the entire chain element a' is buried. Therefore, the concave portion 30b is used as a lower mold d for molding the front half of the rubber material 1a.
It is formed only in the cavity 40 of the second mold, and is not formed in the cavity 40 of the upper mold d1. Also, the cavity 40
Is the width (Y1 + Y2) of the chain element a ′.
It is configured such that both sides of the chain element a 'protrude from both sides of the rubber material 1a.

At the time of manufacturing, the anti-slip device main body a is held in the holding recess 30 of the lower mold d2 of the molding die d constructed as described above.
(See FIG. 8). At this time, the non-slip device main body a is fitted into the holding recess 30 with the front side facing downward.

Next, the upper mold d1 is placed on the lower mold d2 and the mold is closed. As a result, the upper half of the chain that has protruded from the split surface of the lower mold d2 fits into the holding recess 30 of the upper mold d2, and the non-slip device main body a fits into the holding recess 30 of the upper and lower molds d1, d2. To be completely fixed.

After the mold d is closed, the unvulcanized rubber material 1a 'plasticized by pressurization / heating is placed in the upper mold d1.
Is injected into the cavity 40 of the molding die d from the injection port d4 provided in FIG. The unvulcanized rubber material 1a ′ to be the coated rubber material 1a is cut into an appropriate shape at room temperature,
Before closing the mold, it may be stored in the cavity 40. When the cavity 40 is filled with the rubber material 1a ', the gap between the chain elements a' housed in the cavity 40 is filled with the rubber material 1a ', and a portion other than the exposed portion is wrapped.

Mold d after injection of rubber material 1a '
Moves into a vulcanizing press device, and vulcanizes the rubber material 1a 'by heating at a predetermined temperature for a predetermined time while pressing at a predetermined pressure from above and below. After the vulcanization process, the mold d is divided into upper and lower molds d1 and d2, the blade 1 molded in the cavity 40 is released, and a protrusion formed by an injection port d4 and a mold closing surface are formed therearound. Remove the burrs that protrude along.

The removed cross chain a1 is covered with a rubber material 1a in a substantially columnar shape to form a blade 1. Also, a part of the cross chain a1 protrudes in a staggered manner on the surface and both side surfaces of the blade 1. Since the blade 1 configured as described above has not been subjected to any surface treatment on the surface of the cross chain a1, the adhesive force between the cross chain a1 and the rubber material 1a is weak. For example, the fastening device g The adhesion between the two members a1 and 1a is relatively easily peeled off due to the tightening force of the member and the load received during traveling. Therefore, the mutual joining surface of the cross chain a1 and the rubber material 1a is free to shift with the bending of the blade 1, and the rubber material 1a is also displaced by the cross chain a.
Independently from 1, elastically deformable.

Next, a manufacturing method for performing a non-adhesion treatment on the surface of the cross chain a1 will be described. This manufacturing method is a process similar to that of the above-described method of manufacturing the anti-skid device A for tires, except that the surface of each cross chain a1 of the anti-skid device body a having a substantially ladder shape is subjected to a non-adhesion treatment. Thereafter, the rubber material 1a is formed by coating.

The non-adhesion treatment is a surface treatment similar to a release treatment performed when resin is molded using a molding die, and a release agent such as a silicon-based or fluorine-based release agent is applied to the surface of the cross chain a1. By coating, a non-adhesive film is formed between the surface of the cross chain a1 and the rubber material 1a, thereby actively preventing the adhesion between the cross chain a1 and the rubber material 1a, Cross chain a1 and rubber material 1
This is to substantially completely separate the joint surface with a. The non-adhesion treatment used in the present invention is not limited to the above-mentioned method, and any existing method can be used as long as the cross-chain a1 and the rubber agent 1a can be brought into a non-adhesion state. May be used. As described above, the apparatus main body a having the surface of the cross chain a1 subjected to the non-adhesion treatment is housed in the molding die d, filled with the rubber material 1a and vulcanized to form a blade. 1, but the manufacturing process is common to that of the above-described embodiment, and the description and disclosure of the drawings are omitted.

As described above, the blade 1 of the anti-slip device for a tire constructed by performing a non-adhesive treatment on the surface of the cross chain a1 has a substantially complete separation between the cross chain a1 and the rubber material 1a. Can be sufficiently exhibited from the first use. By the way, as mentioned above, the conventional anti-skid device for tires,
The strength of the blade was improved by firmly bonding a rubber material to the surface of the cross chain. On the other hand, the antiskid device A for tires of the present application improves the flexibility of the blade 1 by coating the cross chain a1 with the rubber material 1a in a non-adhered state. However, the tire anti-slip device A of the present application does not sacrifice the strength surface in order to improve the flexibility of the blade 1, and even if the joining surface between the cross chain a1 and the rubber material 1a is separated, It was confirmed by repeating the test that the material had the necessary and sufficient strength.

Incidentally, the above-described embodiment uses the cross chain a
1 is coated with a rubber material 1a to form the blade 1. However, the anti-slip device for a tire of the present invention uses a relatively soft synthetic resin material such as urethane resin as a coating material for coating around the cross chain a1. Alternatively, it may be configured by using (not shown). In this case, the cross chain to be the metal chain in the ground range is left as it is, or after the surface of the cross chain is subjected to a non-adhesion treatment, the cross chain is placed in a blade forming mold in the same manner as described above. The blades are formed by injecting a synthetic resin, such as a urethane resin, into the molding die, thereby covering the cross chain with a synthetic resin material. In the tire anti-slip device configured as described above, the flexibility of the blade can be improved as in the case of using the rubber material as the coating material of the blade as described above.

[0042]

As described above, according to the present invention, the metal chain constituting the grounding area of the anti-slip device body is set in the molding die for blade molding as it is without performing degreasing and applying adhesive. Then, the unvulcanized rubber filled in the molding die is vulcanized and molded while applying pressure and heat, so that the blade is covered and formed. The metal chain is easily released from the surface of the metal chain that has not been subjected to the metal bonding application process, and the gap between the metal chain and the rubber material layer is freely shifted with the bending of the metal chain. Therefore, as compared with a conventional manufacturing method in which a rubber material layer is firmly adhered to the surface of a metal chain to form a blade, the flexibility of the blade is greatly improved while maintaining the durability of the blade. As a result, the workability when mounting the anti-skid device for a tire can be improved, and each blade is brought into close contact with the outer peripheral surface of the tire,
The mounting work can be performed smoothly in an accurate state so as not to cause a gap or a gap. Also, compared to the conventional manufacturing method in which the surface of the metal chain is degreased, coated with rubber and metal adhesive, and coated with rubber adhesive, and dried repeatedly between each process, the manufacturing process is greatly reduced. The simplification can be achieved, whereby the manufacturing cost can be reduced. In addition, in the prior art, in order for the blade to adhere along the tire outer peripheral surface, the shape of the blade, that is, the cavity shape of the mold had to be complicatedly bent into a shape along the tire outer peripheral surface, Even when the blade of the present invention is formed in a straight shape, it can be in close contact with the tire outer peripheral surface due to good flexibility, so that the manufacturing cost of a mold for molding the blade can be reduced.

In the manufacturing method according to the second aspect, after the surface of the metal chain constituting the ground range of the anti-slip device body is subjected to a non-adhesive treatment, the metal chain is fixed in a mold for blade molding. By vulcanizing while pressing and heating the unvulcanized rubber filled in the mold,
Since the blade is formed by coating, the same effect as that of the manufacturing method according to the above-described claim 1 can be obtained, and by the non-adhesion treatment, the metal chain and the rubber material layer constituting the blade can be more completely formed. And the bendability of the blade can be further improved.

The anti-skid device for a tire according to claim 3 is
Since the metal chain in the grounding range constituting the blade and the rubber material covering the metal chain are in a non-adhered state, the rubber material layer is firmly attached to the surface of the metal chain as in the related art. The flexibility of the blade can be greatly improved, as compared with a configuration in which the blade is adhered to the blade. As a result, the workability when mounting the non-slip device on the tire can be improved, and each blade is closely attached along the outer peripheral surface of the tire, and the blade is mounted in an accurate state so as not to cause a gap or a gap. Can be executed smoothly.

The anti-slip device for a tire according to claim 4 is
Since the metal chain in the ground range is covered with a synthetic resin material in a predetermined shape to form a blade, and the metal chain of the blade and the synthetic resin material surrounding the metal chain are in a non-adhered state, for example, Compared with the case where the rubber material layer is firmly adhered to the surface of the metal chain to form the blade, the bendability of the blade is greatly improved,
Workability at the time of mounting the anti-slip device on the tire can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a ladder-type tire antiskid device embodying the present invention.

FIG. 2 is a front view showing a mounted state of the non-slip device.

FIG. 3 is a front view showing a part of the non-slip device in a mounted state in which a ground contact area is notched;

FIG. 4 is a perspective view showing a ground range of the anti-slip device.

FIG. 5 is a longitudinal sectional front view showing an end of a blade.

FIG. 6 is a perspective view showing a mounted state of the non-slip device.

FIG. 7 is a front view showing a turtle-shaped tire antiskid device embodying the present invention.

FIG. 8 is a perspective view showing a molding die.

FIG. 9 is a longitudinal sectional view showing a closed state of the mold.

10A is a longitudinal sectional view showing a blade provided with an exposed portion on the front and rear surfaces and four surfaces, and FIG. 10B is a longitudinal sectional view showing XX of FIG.
It is a line sectional view.

FIG. 11 is a front view showing a tire slip stopper device in which a rubber string is inserted in a chain in a meandering shape, with a part omitted.

[Explanation of symbols]

 A: Anti-slip device for tire a: Anti-slip device body a1: Cross chain d: Molding die d1: Upper die d2: Lower die 1: Blade 1a Rubber material 1a '・ ・ ・ Rubber material (unvulcanized)

Claims (4)

[Claims] 1. A non-slip device for a tire, wherein at least a grounding area of a non-slip device main body wound around and mounted on a tire outer periphery is formed by a metal chain, and the metal chain is covered with a rubber material in a predetermined shape to form a blade. The manufacturing method, wherein the metal chain in the ground range is placed in a mold for blade molding as it is, and an unvulcanized rubber is filled in the mold and vulcanized to form a rubber on the metal chain. A method for manufacturing a tire anti-slip device, comprising forming a blade by coating a material. 2. A tire anti-slip device comprising: a metal chain at least in a grounding range of a main body of the anti-slip device wound around the outer periphery of the tire; and a metal material covering the metal chain in a predetermined shape to form a blade. In the manufacturing method, after performing a non-adhesive treatment on a surface of the metal chain in the ground range, the metal chain is fixed in a mold for blade molding, and the uncured rubber is filled in the mold. And vulcanizing the metal chain with a rubber material to form a blade. 3. A tire anti-slip device in which at least a grounding area of a non-slip device main body wound around and mounted on a tire outer periphery is formed by a metal chain, and the metal chain is coated in a predetermined shape with a rubber material to form a blade. A non-slip device for a tire, wherein a non-adhesive state is provided between the metal chain in the ground range and a rubber material covering the metal chain. 4. A non-slip device for a tire in which at least a grounding area of a non-slip device body wound around and mounted on a tire outer periphery is formed by a metal chain, and the metal chain is coated in a predetermined shape with a synthetic resin material to form a blade. A non-slip device for a tire, wherein a non-adhesive state is provided between the metal chain in the ground range and a synthetic resin material that covers the periphery of the metal chain.