JP2008110702A - Anti-skid fabric cover for vehicle tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anti-skid cloth cover for a vehicle tire which is easily mounted on the tire, and has the high reliability and superior mounting stability and superior mechanical characteristics, and also has excellent wear-resistant characteristics during the use under an intended meteorological condition. <P>SOLUTION: The anti-skid fiber cloth cover for the vehicle tire is disclosed. This cover is suitable for use in a bad weather, in particular, on a snowy or icy surface, and easily attachable/detachable to/from the tire. The anti-skid performance is high, the mounting stability is excellent, and the friction resistance is high. The cover has a long-shaped cut structure and a composition so as to optimize the anti-skid characteristic and the wear resistance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a non-slip cover for vehicle tires used in bad weather. In particular, the present invention relates to an anti-slip cover for vehicle tires used on ice or snow.

  The non-slip cover of the present invention is easy to install on a tire, is reliable, has excellent mounting stability and mechanical properties, and has excellent wear resistance when used under intended weather conditions. Have

  The anti-slip cover of the present invention is characterized by a concavo-convex slit structure and a special composition that optimizes anti-slip performance and wear resistance.

  Driving a car equipped with a normal inflatable tire on a slippery road surface such as a snowy road or a frozen road is very dangerous due to a sharp decrease in tire frictional force.

  When the friction coefficient was reduced due to the presence of ice, it was necessary to prevent slipping by using metal protrusions.

  In order to increase the grip of the tire, a heel or spike was driven into the tire.

  This type of tire is required to be used at all times during periods when snow and ice are present and at ski resorts.

  When a stronger gripping force is required, such as driving on a snowy mountain road, an auxiliary non-slip means such as a chain is used.

  As this kind of auxiliary means, various types pursuing easy attachment / detachment are used.

  However, the chain is heavy and bulky and requires considerable space in the car trunk for storage. In addition, the chain bites into the snow, but the tires themselves are subject to considerable stress and damage.

  When driving on a road where there is no snow, the snow cushion is not provided and the damage is further increased. If there is a short distance where there is no such snow, generally the chain is not removed one by one.

It is known to use a non-slip cover instead of a chain. For example, Patent Document 1 discloses a tire cover device that increases friction between a tire and a road surface.
European patent application EP 1165329

  This non-slip cover is composed of a belt wound around a tire with an oversize of about 4%. The outer side is entirely non-porous, and the inner side has a band with a resilient asymmetric tensor.

  In particular, the present invention provides an anti-slip cover with a fabric that resists shear stress, enhances gripping force, and improves mounting stability.

  The present invention is for a vehicle tire comprising a central main band provided by a fabric having a high tensile strength, and elastic adjustment members (straps) arranged symmetrically on both edges enabling attachment to and removal from the tire. Providing anti-slip cover.

  The main band having high tensile strength is made of a band-like cloth made up of several strands.

  The presence of several strands increases the strength and thickness of each string and provides improved grip on the tire surface on slippery road surfaces.

  The main band made of cloth is configured to include strings having different thicknesses, and provides a band having protrusions and irregularities that improve adsorption to the ground.

  The fabric is woven with fiber bands. This fiber band is preferably made of taffeta and is a component of the fabric.

  The main band is a band obtained by cutting the cloth at an angle of 45 ° or more and 90 ° or less. When cut at an equal angle with respect to the original longitudinal and transverse directions, the fibers make an angle of 45 ° with the band. Here, when cut at an angle of 45 ° or less, the longitudinal fibers can be regarded as the transverse fibers, so that the same form is obtained. (If the longitudinal and transverse fibers are the same material, the angle between the longitudinal and transverse fibers is 90 °, so the angle of the longitudinal or transverse fibers with respect to the side of the band is an angle of 45 ° or less. Even if it is cut at the angle, it has the same specifications as when cut at an angle of 45 ° to 90 °.)

  In terms of fiber orientation, an angle with a fluctuation range of plus or minus 10 ° is particularly effective for an angle of 45 °. This inclination improves the two main properties of friction and wear resistance on the slippery road surface of snow and ice, compared to the original direction of 90 °.

  The reason is that the same force acts on all the fibers, so that the breakage and breakage of the fibers are minimized. If the longitudinal or transverse fibers are more heavily loaded and worn than the other, the entire fabric will be adversely affected. This ideal solution is to apply an even load on the longitudinal and transverse fibers.

  Available cutting means are laser, scissors, or hot solder. If the cut is made by local fusing, the cut is less likely to break before being sewn.

  The anti-slip cover of the present invention can be subjected to a treatment for preventing the diffusion of ticks and bacteria. For this purpose, the strings that are part of the cover are treated with anti-tick and anti-bacterial agents. The cover is free from odors and microorganisms over a long period of time and can be stored for a long period of time without being used.

  The embodiments disclosed in the following with reference to the drawings show preferred embodiments of the invention, and do not limit the invention in any way.

  FIG. 1 shows a fabric 1 in which fibers are arranged vertically and horizontally.

  With fabric 1, band 1.1 is cut at 34 ° (α). This angle is most effective within an allowable angle range of 45 ° to 90 °. The vertical and horizontal fibers are provided obliquely with respect to this band.

  The fabric 1 is made from a material spun with high tensile strength with several strands (5 to 9 in this embodiment) to give the fabric sufficient roughness to increase adsorption and resistance. It is made.

The cloth 1 is manufactured with a surface density of 0.3 to 1 kg / m ² using a taffeta band.

  On this fabric 1, diagonally, a square cut is provided at an angle of 45 ° (α). The length is the length of the cover plus the length of the joint, and the width is wider than the tire.

  Elastic adjustment straps 2 are incorporated into the side edges of the cover and fit on both sides of the tire to provide mounting stability.

  FIG. 2 shows broken lines 1.2 and 1.3 representing the reference position of the tire edge.

  The cloth used for the cover is preferably made of polypropylene in view of its strength, water repellency and recyclability.

  Because polypropylene has a lower specific gravity and is lighter than water, the material provides a cover that is lighter at the same volume than other high density materials.

  In another embodiment, the cover material is para-aramid fiber. It is very strong, fireproof and anticorrosive.

  In yet another preferred embodiment, the cover may be in the form of a closed ring with a joint 3 joining the ends of the band 1.1.

  Usually, as shown in the upper diagram of FIG. 3, the joint portion 3 is provided in a stitched state with both ends overlapped to constitute a separating portion of the cover.

  In the cover of the present invention, the joint portion 3 is provided by bending the end portion outward and stitching both joint portions.

  The lower figure of FIG. 3 shows the form of the both ends of the band 1.1 bent outward when preparing the joint so as to reinforce the joint.

  The cover of the present invention provided with ring closing means at the end can be provided as an open square.

  The ring closure means is preferably a Velcro (registered trademark) hook-and-loop fastener.

  The essence of the present invention is not limited by the material, shape, dimensions, and deformation of the combined elements.

It is the schematic of the cloth which consists of vertical and horizontal fiber, and has shown the direction of cutting. It is a perspective view of this invention cover, and has illustrated the state wound around the tire (not shown). The Example of joining of this invention cover is shown.

Explanation of symbols

1 Fabric 1.1 Main band 1.2 Tire edge reference position 2, 3 Elastic adjustment strap

Claims (12)

A non-slip cover for a vehicle tire, comprising a fiber cloth (1) formed of a plurality of high-strength yarns spun with a plurality of twisted yarns and fiber bands, and has a surface density of 0.3 to 1 kg / m ² , With a main band (1.1) in which vertical and horizontal fibers are arranged at an inclination angle (α) of 45 ° or more and 90 ° or less, the width is wider than the tire, and both edges are in close contact with both sides of the tire An anti-slip cover, characterized in that elastic adjustment straps (2, 3) are provided respectively.   The anti-slip cover according to claim 1, wherein the inclination angle (α) of the fiber is in the range of 45 ° ± 10 °.   The non-slip cover according to claim 1, wherein the fiber band is taffeta.   The anti-slip cover according to claim 1, wherein the string having a high tensile strength is formed of 5 to 9 strands.   The anti-slip cover according to claim 1, characterized in that the string having a high tensile strength has different thicknesses and the main band (1.1) has irregularities.   The anti-slip cover according to claim 1, wherein the cloth is polypropylene.   The anti-slip cover according to claim 1, wherein the cloth is para-aramid.   The anti-slip cover according to claim 1, wherein the string having a high tensile strength constituting the fiber cloth (1) is anti-tick-treated.   The anti-slip cover according to claim 1, wherein a string having a high tensile strength constituting the fiber cloth (1) is antibacterial treated.   The anti-slip cover according to claim 1, wherein the anti-slip cover is configured as an annular body having a joint portion, and bent portions outside the both ends of the annular body are joint portions.   2. The anti-slip cover according to claim 1, wherein the cover is a rectangular body having ring closing means at both ends. The anti-slip cover according to claim 11, wherein the ring-closing means is a Velcro (registered trademark) hook-and-loop fastener.

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