KR20030077221A - An anti-slipping pad for a vehicle - Google Patents

Abstract

PURPOSE: A nonskid pad for a vehicle is provided to quickly brake by increasing coefficient of friction between wheels and the ground. CONSTITUTION: A nonskid pad for a vehicle comprises a polymer plate(1) having width less than the tread width of a tire, and length less than the length of the surface on which the tire contacts with the ground; an adhesive layer(3) formed on the floor surface of the polymer plate; and release paper(4) adhered to the adhesive layer face. The adhesive layer is adhered to the tread area of the tire. Plural protrusions(2) are formed on the polymer plate at regular intervals.

Description

Anti-slipping pad for a vehicle

The present invention is to produce a high friction coefficient pad by using a polymer to prevent the slip of the tire, and then by adhering the pad to the tire with adhesive and adhesive material to increase the coefficient of friction of the tire against the ground to reduce the sliding of the tire It relates to a vehicle anti-slip pad using a polymer pad to prevent.

If you drive on a rainy or sandy road, you will often find it difficult to drive because your car tires are slipped by water or sand. In general, tires used on wheels of automobiles rotate the tires through friction with the ground, causing the vehicle to move forward or backward. In addition, even when the vehicle is stopped or the speed is reduced, the tire is stopped by using the friction force between the car tire and the ground to increase the friction with the ground to reduce the speed of the vehicle. However, if the friction between the car tire and the ground is excessive, it is difficult to drive at high speed. Therefore, the car tires currently used in the market are designed in consideration of the speed of the vehicle and the shape of the ground. It is decided enough.

Generally, liquids such as water or particles such as sand lower the coefficient of friction between the ground and the tire, so that the tire cannot slide against the ground and just slide. If this condition persists, the vehicle will not spin and will turn the wheel in place. If this happens in a high-speed vehicle, it will not be able to brake, which can lead to a serious accident.

It's also a problem when it rains, but after the snow comes bigger problems. Snow or frozen snow on the ground forms ice on the road. The friction between the ice and the tires is so weak. So, if there is a lot of snow, or if the snow that falls at night is frozen on the ground, braking is not possible and many traffic accidents occur.

There is a tire chain in the equipment used as a way to prevent traffic accidents caused by braking problems, such as in winter. A tire chain is a method of increasing the friction coefficient of a tire by tying a metal chain to a car tire and rubbing it with snow or ice on the ground. Tire chains are used a lot because they can increase the braking power of a car, but they are difficult to install on tires, so first-time users and female drivers are reluctant to use them.

One of the methods developed to solve the tire chain installation problem is spraying adhesive and fine particles onto the tire surface. In this method, microparticles such as rosin are used as microparticles. However, this method temporarily raises the coefficient of friction of automobile tires, but it does not have many users because it hardly shows performance when there is a lot of snow or heavy rain, such as during long time use or in heavy snow.

There is also a snow tire, a winter tire. Snow tire is a product that has higher friction than general tires even when it snows by making the groove of the tire finer and more diverse, so that the coefficient of friction between the ground and the tire is very high. However, snow tires have a bad braking effect when there is heavy snowfall or the ground is very slippery, and the tires need to be changed according to the change of the season, and when the ground is not slippery, it is difficult to speed up the vehicle. .

Although the anti-skid products discussed above have the advantage of relatively good braking effect of the vehicle, the difficulty of installation or the weakness of the effect is difficult to protect the vehicle from the sliding of the ground. In order to solve these installation difficulties and to enhance the braking effect, it is necessary to develop a new method that is easy to install and excellent in braking effect.

An object of the present invention is to provide a non-slip pad for a vehicle that can increase the coefficient of friction between the wheel of the vehicle and the ground to speed up the braking of the vehicle.

Another object of the present invention is to help the vehicle to brake on slippery roads such as ice.

An anti-skid pad for a vehicle according to the present invention for achieving this object has a width less than or equal to the tread width of the tire and a length shorter than the length of the surface where the tire is in contact with the road surface. A polymer plate having a polymer material; An adhesive layer formed on the bottom surface of the polymer plate; It is made of a release paper attached to the adhesive layer surface, characterized in that the adhesive layer is to be attached to the tread area of the tire.

1 is a perspective view of an anti-skid pad for a vehicle according to the present invention;

Figure 2 is a cross-sectional view of the anti-skid pad for a vehicle according to an embodiment of the present invention,

3A and 3B are cross-sectional views of an anti-skid pad for a vehicle according to another embodiment of the present invention;

4a to 4b is a plan view of a non-slip pad for a vehicle according to the present invention,

5 is a reference diagram for explaining a non-slip pad for a vehicle used in the present invention,

Figure 6 is an exemplary view attached to the tire anti-skid pad for a vehicle according to the present invention.

Hereinafter, the configuration of the anti-skid pad for a vehicle according to the present invention and its operation will be described with reference to the accompanying drawings.

1 is a perspective view of an anti-skid pad for a vehicle according to the present invention. As shown, a polymer plate 1 made of a polymer material having a width less than or equal to the tread width of the tire and a length shorter than the length of the surface where the tire contacts the road surface, A plurality of protrusions 2 protruding at a predetermined distance from the upper surface of the polymer plate facing the road surface as the tire rotates, and an adhesive layer 3 formed on the bottom surface of the polymer plate 1 It can be seen that.

The protrusions 2 may be in the form of circular pillars or polygonal pillars including elliptical pillars, triangular pillars and square pillars.

2 is a cross-sectional view of an anti-skid pad for a vehicle according to an embodiment of the present invention. Unlike the perspective view of Figure 1 it can be seen that the release paper (4) is attached to the bottom of the adhesive layer (3).

FIG. 3A is a case where the adhesive agent 5 is applied to the entire surface of the adhesive layer 3, and FIG. 3B shows a case where the adhesive agent 5 is applied only to the outer portion of the adhesive layer 3.

4A and 4B are plan views of an anti-slip pad, which can be manufactured in the form of a V-shaped 4a and a U-shaped 4b.

In order to prevent the car from slipping on the road, the friction of the tire on the road must be increased. In the present invention, as a method of increasing the friction between the tire and the road surface, a polymer pad, which is a non-slip pad for a vehicle that can be mounted on a tire, is used.

A polymer pad is a pad made of a polymer. Polymers can be easily synthesized and used as polymer materials, and typical polymers include plastics, acrylics, urethanes, sealants, synthetic rubbers, and silicones.

The polymer used in the present invention is a material having a high hardness at the time of curing, and a representative material is urethane and synthetic rubber. There are many kinds of urethane and synthetic rubber, and there are typical soft and elastic soft ductility and high hardness and hard rigidity. In the present invention, rather than using a soft material, in order to have high friction with the ground and not to wear easily when driving, hard urethane and hard rubber are used.

The reason of using urethane or hard rubber is that it does not damage the road surface even when it is mounted on the tire, and the elasticity effect of urethane is excellent so that it is less impacted to the vehicle, and it does not wear out well or break even after long use This is because contact with water or snow does not lose friction with the road surface.

In the present invention, in order to mount the polymer plate 1, which is an anti-skid pad for a vehicle, to a tire, a single-sided tape or a double-sided tape, and an adhesive material 5 may be additionally used as the adhesive layer 3. The reason for using adhesive tape is for easy installation and easy removal. In case of attaching to the tire by using only adhesive tape, one side of the adhesive tape is adhered to the polymer pad by using an instant adhesive or the like and the other side is adhered to the tire. When adhesive is added to the adhesive tape, one side of the adhesive tape is adhered to the polymer pad by using an instant adhesive or the like, and the other side is partially added with adhesive to attach to the surface of the tire. The use of adhesive as a whole increases the adhesion strength but is not easy to remove from the tire after using the polymer pads, leaving adhesive on the tire, making it sticky and causing foreign matter to adhere to the tire. Therefore, the use of the adhesive can be added only to the periphery of the polymer pad, thereby reducing the remaining of foreign matter.

The force acting on the friction between the tire and the road surface is the lateral force. Lateral force is the force pushing from the side. When two objects are bonded through double-sided tape, the vertical tension force is applied to the two objects, but the two objects do not fall easily when pulled by the lateral force. In general, a material bonded to a film layer such as a tape does not separate the bonded material due to an increase in the frictional force of the film layer when the lateral force is applied, but when a vertical tension is applied, the frictional force of the film layer decreases, thereby easily bonding the material. Are separated. Thus, when the vehicle is driven by contacting the tire with a non-slip pad for the vehicle by using a double-sided tape in the form of a film, the tire applies a lateral force to the road surface while rotating, and a frictional force is generated by the lateral force. Therefore, the double-sided tape used in the present invention prevents the anti-skid pad for the vehicle from falling off the tire. Applying additional adhesive along the rim on the double-sided tape increases adhesion and prevents water from penetrating into the pad after attaching the pad, as it penetrates into the bent portion of the tire surface during compression when the pad is attached to the tire. can do. As the adhesive, Loctite's LOCTITE 454 (cyanoacrylate type) or the like can be used as an adhesive of a moisture curing or moisture curing system. This type of adhesive can be used even when water is present on snowy roads or on ice roads, as it is a one-part solvent-free type that initiates polymerization when there is moisture and hardens to generate adhesion.

Table 1 shows the results of the adhesion test according to the shape of the pad as a test result using the anti-skid pad for vehicles proposed in the present invention on the snow road and the ice road.

TABLE 1

Adhesive force Prize medium Ha Length of polymer pad (L) Width (W) L ≒ TW ≒ E L 〈TW 〈E L〉 TW〉 E Height of adhesive tape or adhesive tape + adhesive layer H ≥ S S / 2 ≤ H <S H <S / 2 shape V-shape U shaped -Shape

When the length of the polymer pad L and the width W as shown in Figure 5, it is a variety of experimental results of the adhesive force. Here T denotes the width of the tire tread, E denotes the width that the tire touches the ground, and S denotes the step of the tread bend.

First, in terms of size, when the length of the pad is smaller than the width of the tread portion of the tire, the width W of the pad is effective in a range smaller than the width E that the tire touches the ground, and the adhesive tape 3 or the adhesive tape of the pad is effective. As for the thickness of the adhesive agent 5 added to (3) and its edge, half or more of the tread step S is suitable. The pads have a V-shape or U-shape along the direction of rotation of the wheels, and thus the degree of peeling from the tire is improved.

When the polymer adhesive pad is attached to the surface of the tire, it is attached in three ways.

First, if the adhesive tape is attached to the tire (a) Remove the release paper and then press the pad to the surface of the tire and hold it for 10 to 30 seconds so that the adhesive tape is sufficiently in contact with the tread surface of the tire and then elapsed for 1 minute or more. Then drive the car. In this case, the thickness of the pressure-sensitive adhesive tape is to be at least half the thickness of the tread step.

Next, when the adhesive is added to the adhesive tape and attached to the tire, the thickness of the adhesive tape and the adhesive combined with the water-curing adhesive along the surface (b) or periphery (c) of the adhesive tape corresponds to more than half of the tread step. Apply to the thickness to be. After that, the pad is pressed onto the surface of the tire and maintained for 10 to 30 seconds so that the adhesive and the adhesive tape are sufficiently in contact with the surface of the tire, and after 1 minute or more, the vehicle is used as an anti-slip pad for a vehicle.

6 is an exemplary view illustrating the use of the vehicle anti-skid pad 10 of the present invention bonded to a car tire. The polymer pad is attached to the tread portion between the shoulder portions of the tire, with the polymer pad facing towards the narrowing direction of the wheel. This helps to withstand the torsion and lateral tension that occurs when the polymer pads strike the road surface. Looking at the material of the anti-slip pad according to the present invention, first, the polymer used as the polymer pad is urethane for industrial use. There are many kinds of urethanes depending on their hardness. The hardness of urethane is usually expressed by Shore hardness. Shore firms are largely divided into Shore-A, Shore-B, Shore-C, and Shore-D. Among them, polymer products such as urethane exhibit hardness using Shore-A. When the urethane used by this invention is represented by Shore-A hardness, hardness is 20-120, The range which can be used most easily among these is 60-100.

The tape used in the present invention is a product using polyester as a fabric. The tape used in the present invention is slightly different from the product generally used. While the car is running, it must be strong enough to attach the polymer pad to the tire. For this reason, the polyester used in the present invention has a high hardness and excellent wear resistance, which is very suitable as an adhesive tape for attaching a polymer pad to a tire, and in addition to polyester, urethane or acrylic having high hardness and excellent wear resistance may be used.

The double-sided tape used in the present invention is D-202 and D-202F among D-200 series products produced by Tong Yang Hai Pole Industries, and other D-200 series products can be used, in addition to foam tapes. You can also use 3M's 4700 series and 4900 series products, typically 4774, 4926 or 4936F. In addition, 4100 series and 4500 series commercially available from 3M can be used as a single-sided tape, and typical products, such as 4101, 4108, 4116, 4516, can also be used, In addition, you may use a strong adhesive tape. In the case of a single-sided tape, an adhesive may be applied to the pad and the non-adhesive side of the single-sided tape may be attached thereto. As the adhesive, Loctite's LOCTITE 454 or the like may be used as a moisture curing or moisture curing adhesive. This type of adhesive can be used even when water is present on the snow road or ice road because it is a one-part solvent-free type that initiates polymerization when there is moisture and hardens to generate adhesion.

As described above, the anti-skid pad for a vehicle can be easily attached to a car tire, and since it does not cause breakage or departure from the tire, there is an effect of helping to drive a car safely even if a natural disaster such as heavy snow occurs.

Claims (12)

A polymer plate made of a polymer material having a width less than or equal to the tread width of the tire and a length less than or equal to the length of the surface where the tire is in contact with the road surface; An adhesive layer formed on the bottom surface of the polymer plate; A non-slip pad for a vehicle, comprising: a release paper attached to the adhesive layer surface to attach the adhesive layer to a tread region of a tire. The anti-skid pad for a vehicle according to claim 1, wherein the adhesive layer has a thickness of at least half of a tread step of the tire. A polymer plate made of a polymer material having a width less than or equal to the tread width of the tire and a length less than or equal to the length of the surface where the tire is in contact with the road surface; An adhesive layer formed on the bottom surface of the polymer plate; An anti-skid pad for a vehicle, comprising: an adhesive layer applied to the adhesive layer, and vacuum-packed to attach the adhesive layer to a tread area of a tire when used. 4. The anti-skid pad for a vehicle according to claim 3, wherein the thickness obtained by adding the adhesive layer and the adhesive layer has a thickness of at least half of the tread step of the tire. The anti-skid pad for a vehicle according to claim 3, wherein the adhesive layer is a moisture-curable adhesive cured by moisture. The method according to any one of claims 1 to 5, characterized in that a plurality of protrusions protruded at regular intervals are formed on the upper surface of the polymer plate facing the road surface as the tire rotates. Car anti-skid pad. 7. The anti-skid pad for a vehicle according to claim 6, wherein the plurality of protrusions protruding from the polymer plate are cylindrical. 7. The anti-skid pad for a vehicle according to claim 6, wherein the plurality of protrusions protruding from the polymer plate are in the form of prisms. According to any one of claims 1 to 5, wherein one side of the polymer plate is formed as a gripping portion narrower toward the end, characterized in that configured to be attached so that the gripping portion is directed toward the running rotation direction of the tire. Car anti-skid pad. 10. The anti-skid pad for a vehicle according to claim 9, wherein the clamping portion is arcuate. 6. The anti-skid pad for a vehicle according to any one of claims 1 to 5, wherein the polymer plate is formed of urethane. The anti-skid pad for a vehicle according to any one of claims 1 to 5, wherein the adhesive layer is a double-sided tape.