JP2542409B2 - Anti-skid device for automobile tires - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an anti-skid device for an automobile tire, which is attached to a tire of an automobile or the like when the road surface such as snow or ice is slippery and prevents slipping or the like. It is a thing.

(Conventional device) Conventionally, as an anti-skid device for an automobile tire, for example, as shown in Japanese Patent Publication No. Sho 56-18407, a net as an annular anti-slip member for covering the tire and both sides of the tire. An edge member attached to both side portions of the anti-slip member along a portion, and a hooking unit attached to both side portions of the edge member and forming the edge member in an annular shape. It is composed of a coil spring and a lock wire that penetrates through the coil spring, and both ends in the length direction of the lock wire are hooked by hooking means, and the hooking means is hooked, When released, the anti-slip member of the tire is attached to and detached from the tire.

Further, as shown in Japanese Examined Patent Publication (Kokoku) No. 57-12689, a net or a net covering at least a part of the road surface and the tire side wall is restricted by end rings provided on each side of the tire side wall, or Formed of a flexible but mostly non-stretchable cord or cord having greater extensibility in the tire circumferential direction than in the direction orthogonal to it, and having a net work. , Also, on each side of the tire there is provided an end ring bounded by a mesh, and further, all edge meshes are firmly connected to the end ring between the mesh or meshwork connection points. It has a detailed structure and is easy to install,
The traveling speed of the vehicle is not reduced, and further, there are advantages such as excellent anti-slip action and excellent steering.

However, although the above-mentioned device has various advantages, since the entire device does not have a waterproof structure, the end ring cannot be operated smoothly due to freezing or freezing, and It has the drawback that the device cannot be attached and removed smoothly unless the tightening force of the device itself is optimized.

(Problems to be Solved by the Invention) This type of anti-skid device for an automobile tire is used by being mounted on a tire when traveling on a snowy road, a lubrication road, etc. In the conventional device described above, the device itself has a waterproof structure. Therefore, water, snow, mud, snow-melting agent, etc. infiltrate through the gaps of the coil springs and the hooks at the end ring part, and as a result, the equipment freezes or freezes and the end ring part does not expand. Hinder, also
In some cases, the smooth operation of each device of the hook portion was hindered.

Further, if the tightening force when mounting the device on the tire of the automobile is not appropriate, it will float from the tire due to the action of centrifugal force while running while mounted on the tire,
The tightening force is required so that the device does not lift up from the tire.

That is, if the tightening force is made excessive, it becomes difficult to mount the tire on the tire and the tire is damaged.

With respect to this point, in a device using a coil spring as disclosed in Japanese Patent Publication No. 57-12689, which is a conventional example, the tightening force is set to be relatively weak, but in this case it is excellent in flexibility and light. If it was not the tread part, it could not be properly mounted on the tire.

That is, if an anti-slip member having a high rigidity and durability such as an integrally molded tread is to be applied to the device, it is necessary to increase the tightening force by a factor of 2 to 3, so that a large diameter inevitably occurs. I have no choice but to use a coil spring. As a result, the overall weight of the device is increased by a factor of 2 to 3, not only the centrifugal force applied to the device while traveling is increased, but also the size is increased, and the gap between the tire and the vehicle body is considered. It has problems such as narrowing the range of applicable vehicles.

Therefore, the above-mentioned conventional device has a drawback that it cannot be commonly used as a non-slip member having a light tread portion having excellent flexibility, or cannot be used in common with a highly rigid and durable tread such as an integrally molded tread. .

An object of the present invention is to provide an anti-skid device for an automobile tire, which does not increase the weight of the device itself, has a tightening force of 2 to 3 times that of a conventional one, and can be applied to various sliding members.

(Means for Solving the Problem) The present invention has a ring-shaped non-slip member for covering a tire, as a structure for solving the problems of the above-described conventional device.
An edge member attached to both sides of the anti-slip member along both sides of the tire; and a hooking means attached to both sides of the edge member and forming the edge member in an annular shape. The edge member includes a coil-shaped elastic body, an elastic body having a multiple structure in which an elastic material is coated on the outer periphery thereof, and a lock wire arranged so as to penetrate through the elastic body, and the hooking means waterproofs the outer periphery. The first aspect of the present invention is characterized in that the entire device is covered with water and the contact portion of the edge member with the elastic material coated portion is closely joined to form a waterproof structure. A second aspect of the invention is adopted, which is an integrally molded rubber tread with spike pins.

(Function) The device of the present invention is configured as described above, but the edge member is arranged so as to penetrate through the elastic body having a coiled elastic body and a multiple structure in which the outer periphery of the elastic body is covered with the elastic material, and the elastic body. Since the elastic body has a strong elasticity because it is composed of a lock wire, the tightening force of the coil-shaped elastic body can be increased several times (2 to 3 times) without increasing the weight. As the hooking means, the outer circumference is waterproofly covered, and the contact portion of the edge member with the elastic material covered portion is closely joined to form the entire apparatus as a waterproof structure. Therefore, like the conventional apparatus, the coil spring in the end ring portion is used. Water, snow, mud, snow-melting agents, etc. infiltrate through the gaps and the hooks, and as a result, the equipment freezes or freezes and prevents the extension of the end ring, and the smoothness of each equipment Each device operates smoothly without hindering operation.

As a result, the tightening force of the coil-shaped elastic body can be increased to 2 to 3 times that of the conventional device without making it difficult to attach and detach to and from the tire. Furthermore, since the weight of the device is the same as that of the conventional device, there is no problem even if the sliding member has high rigidity and durability such as an integrally molded tread.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 is a perspective view showing a state in which an anti-slip member (2) is attached to a tire (1) of an automobile, the anti-slip member (2) being formed in an annular shape so as to cover the tire (1),
Edge members (3) are attached to both sides of the anti-slip member (2) along both sides of the tire (1).
Further, hooking portions (4) are attached to both ends of the edge member (3) to form the edge member (3) in an annular shape.

The anti-slip member (2) is not limited to a net-like member, and a generally-used ladder-type member or the like can be adopted.

FIG. 2 is an enlarged view of a main part of FIG. 1, and similarly to FIG.
In order to form a network composed of (2c) ..., one of two adjacent wire rod rings (2a) and (2b) at even intervals is alternately connected by a connecting metal fitting (5), Meshwork with a mesh as shown.

The connecting fitting (5) may be configured such that the connection points are soldered around and welded to each other.

As shown in the cross-sectional views of FIGS. 3A and 3B, the edge member (3) arranged along both sides of the tire (1) has a rubber tube (N) around the outer circumference of the coil spring (6) made of hard steel wire.
A hybrid elastic body structure covered with rubber (R, SBR, BR mixed material, etc.) (7) is provided, and a lock wire (8) is arranged so as to penetrate through the coil spring (6) and formed into a ring shape. An edge member (3) is formed by a hooking portion (4) which is configured and described later.

The overall structure of the connecting portion between the hooking portion (4) and the edge member (3) is surrounded by a covering cylinder (9) made of a rubber material as shown in the longitudinal sectional view of FIG. An adhesive is filled between the inside of the end and the outer peripheral surface of the rubber tube (7) to firmly bond them.

Further, as shown in the figure, the lock wire (8) is passed through the hooking portion (4) to be hooked, and one end portion is hooked at an appropriate position.

Next, the structure of the hook portion (4) will be described. A pair of lock disks (10) and (11) and this lock disk (1
Disk cases (12) and (13) for holding 0) and (11)
A lock body (14) for holding the disk cases (12) and (13), a pair of sleeves (15) attached to both ends of the lock body (14), and lock disks (10) and (11). ) Is pressed against claws (16) and (17) described later, and a disc spring (18) that tilts the lock discs (10) and (11).

Further, a threaded portion (19) is formed at the end of the sleeve (15), and the coil spring (6) is attached to the threaded portion (19).
The end of the is fixed.

When a force in the direction opposite to the direction of contracting the edge member (3) acts, the lock discs (10), (1
The inclination of 1) becomes small, and the corners of the hook holes formed in the lock disk (10) slide on the surface of the lock wire (8), which causes the lock wire (8) to move in the opposite direction. Then, the anti-slip member (2) is shifted to a stable mounted state. On the contrary, when a force in the direction of extending the edge member (3) acts, the action opposite to the above is performed, and the anti-slip member (2) is maintained in a stable attached state.

Next, the edge member (3) and the hooking portion (4) can be joined together by using an adhesive for rubber to obtain a sufficient joining force. May be.

FIG. 5 shows that the non-slip member (2) is formed by using a highly rigid and durable material (rubber, urethane resin material, etc.) such as an integrally molded tread, and the whole is constructed with a net or net work or It has a ladder type structure, and a carbide spike pin P is embedded in the tread portion (2a).

Then, the anti-slip member (2) and the edge member (3) are fastened together by a connecting fitting (20) and integrated by spot welding.

(Effects of the Invention) As described above, according to the present invention, the edge member is composed of the coil-shaped elastic body, the elastic body having a multiple structure in which the outer periphery is covered with the elastic material, and the lock wire penetrating the elastic body. The elastic material has a strong elasticity because
The tightening force of the coil-shaped elastic body can be increased several times (2 to 3 times) without increasing the weight, and the outer periphery of the hooking portion is waterproof-coated to make contact with the elastic material-coated portion of the edge member. Since the entire device has a waterproof structure by closely bonding, like the conventional device, water, snow, mud, snow-melting agent, etc., infiltrate from the gap of the coil spring in the end ring part, the hooking part, and as a result, Each device operates smoothly without the device freezing or freezing hindering the extension of the end ring part and hindering the smooth operation of each device of the latching part. Therefore, it is not difficult to attach or detach the device even if the tightening force is increased by 2 to 3 times. Further, it is not necessary to apply a lubricant to the outer periphery of the hooking portion for waterproofing after use, and maintenance and maintenance are easy.

Further, the tightening force of the coil-shaped elastic body can be increased to 2 to 3 times that of the conventional device, and the weight of the device is the same as that of the conventional device. Therefore, as a sliding member, an integrally molded tread or the like can be used. It is possible to adopt a material having high rigidity and durability, and it is possible to improve the durability of the sliding member itself.

As described above, according to the present invention, all the drawbacks of the conventional device can be eliminated, which is a useful invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an anti-skid device according to the present invention is attached to an automobile tire, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIGS. 3A and 3B are longitudinal sectional views of edge members and A horizontal cross-sectional view, FIG. 4 is a vertical cross-sectional view showing the engagement state of the edge member and the latching portion, and FIG. 5 is a sliding member of an integrally molded tread having high rigidity and durability. It is a front view of the state where the anti-skid device of the present invention was attached to the tire for vehicles. The names of the symbols are as follows. (1) …… Tire, (2) …… Skidproof member, (2a),
(2b) …… Wire ring, (3) …… Edge member, (4) ……
Hooking part, (5) ... Coupling metal, (6) ... Coil spring, (7) ... Rubber tube, (8) ... Lock wire, (9) ... Coated tube, (10), (11 ) …… Lock disk, (12), (13) …… Disk case, (14) ……
Lock body, (15) …… Sleeve, (16), (17)…
… Claws, (18) …… disc springs, (19) …… screws, (20) …… connecting metal fittings.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-287805 (JP, A) Sekikai Shou 60-25507 (JP, U) JPK Sho 56-18407 (JP, B2) SAKURA 37- 27108 (JP, Y1)

Claims (2)

(57) [Claims] 1. An annular anti-slip member for covering a tire, edge members attached to both sides of the anti-slip member along both sides of the tire, and edges attached to both sides of the edge member. The edge member includes a coil-shaped elastic body, an elastic body having a multiple structure in which an outer periphery of the elastic body is coated with an elastic material, and a lock disposed so as to penetrate through the elastic body. In addition to the wire, the hooking means has a waterproof coating on the outer periphery, and the contact portion of the edge member with the elastic material coating portion is closely joined to make the entire device a waterproof structure. Anti-slip device. 2. An anti-skid device for an automobile tire according to claim 1, wherein the annular anti-skid member covering the tire is an integrally molded rubber tread with a carbide spike pin.