JPH0625006U - Belt for tire slip prevention - Google Patents

Abstract

(57) [Summary] [Structure] A tire slip in which a non-slip net attached to a tire is fastened to a hook attached to one end of the non-slip net at regular intervals, and the anti-slip net is fastened to the tire. A belt for a fastener, comprising a core structure made of high-strength fiber extending in the length direction and a surface structure covering the outer periphery of the core structure, and at least the warp yarn of the surface structure is made of high-strength polyethylene. Formed with tape. Belt for ear slip stoppers. [Effect] Excellent initial wear resistance can be exhibited over a long period of time. Further, it is possible to reduce the weight and thickness as compared with the case of using the woven fabric of multifilament yarns.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a belt used for a tire slip stopper.

[0002]

[Prior art]

 FIG. 3 shows an essential part of a general tire slip stopper. FIG. 3 is a perspective view showing a part of the anti-skid net 1 mounted on the tire in the longitudinal direction. In FIG. 5, metal hooks 2 are attached to the end of the non-slip net 1 on the outside of the tire at predetermined intervals. The tire 3 is tightened by connecting both ends of the net 1 and the belt 3 into a ring shape while the elastic hook stopper belt 3 is hooked on the hook hook 2. An enlarged view of the state where the belt 3 is hooked on the hook 2 is shown in FIG. The bottom surface and both side surfaces of the belt 3 are in contact with and hooked on the hook portion 4 of the hook 2.

As shown in FIG. 5, the belt 3 generally comprises a core tissue 7 composed of high-strength fibers 6 extending in the longitudinal direction, and a surface texture 8 covering the outer periphery of the core tissue 7. Is composed of a warp yarn 9 made of multifilament yarn and a weft yarn 10 made of monofilament yarn.

[0004]

[Problems to be solved by the device]

 However, since the surface structure 8 of the belt 3 is repeatedly moved or bent in the direction of the arrow in FIG. 4 when it is attached to the tire or when it is running, the surface of the belt 3 corresponding to the contact surface with the hook 2 is worn. There is an accident that the individual filaments 9a constituting the multi-filament yarn 9 are broken and the belt 3 is finally broken.

It has been proposed to use filaments 9a that are made of high-strength polyethylene having excellent wear resistance so that the filaments 9a cannot be cut (Japanese Patent Application No. 3-39446). It is hoped that the wear resistance will be improved so as to guarantee the wear resistance. The present invention has been made to solve such a problem, and an object of the present invention is to provide a belt for an anti-skid device having improved wear resistance as compared with conventional ones.

[0006]

[Means for Solving the Problems]

 The anti-skid belt of the present invention is fastened to the tire by attaching the anti-slip net to the tire by attaching the anti-slip net to one side end of the anti-slip net at regular intervals. A belt for a tire slip stopper, comprising a core structure made of high-strength fibers extending in a longitudinal direction and a surface structure covering the outer periphery of the core structure, wherein at least the warp yarn has a high tenacity. It is characterized by being formed of polyethylene tape.

[0007]

【Example】

 The anti-skid belt of the present invention will be described below with reference to the drawings. FIG. 1 is a front view in which a part of a belt for a slip stopper according to an embodiment of the present invention is cut away, and FIG. 2 is a sectional view taken along the line AA of FIG. In the figure, a large number of high-strength fibers 11 are aligned in the length direction of the belt without twisting or in a very untwisted state to form a core structure 12. As the high-strength fiber 11, for example, aramid fiber, glass fiber, carbon fiber or the like is used. Further, high strength and low elongation type polyester fibers, polyamide fibers, polyvinyl alcohol fibers and the like can also be used.

The outer periphery of the core structure 12 is covered with the surface structure 13 to form an anti-slip belt. The surface structure 13 is composed of a vertical mouth bag structure in which a warp yarn 14 is made of a high-strength polyethylene tape. Compared to the warp yarn 14, the weft yarn 15 is not required to have so severe wear resistance, and thus a material, a thread shape having a thickness, a tape shape, or the like can be appropriately used. Monofilament yarn is preferred from the standpoint of sex.

The high-strength polyethylene tape 14 used in the present invention is a high-strength polyethylene tape 14 having an average molecular weight measured by a viscosity method of 1,000,000 to 5,000,000 that is made of ultrahigh-molecular-weight polyethylene. It has an ideal orientation and its specific strength is about 33 to 40 g / denier, which exceeds carbon fiber (about 19 g / denier) and aramid fiber (about 28 g / denier). Thus, it is superior in strength to other fibers.

The size of the high-strength polyethylene tape 14 is appropriately selected according to the size of the belt, but a width of 1 to 3 mm and a thickness of 30 to 100 μm are preferable. It is preferable from the standpoint of the strength of the entire belt to woven such a tape with a weft thread so that about 3 to 8 tapes are arranged in parallel on the upper and lower surfaces of the surface texture. In FIG. 1, four tapes 14 are arranged in parallel on the upper and lower surfaces of the surface structure 13.

The belt thus formed is excellent in wear resistance because the upper surface or the lower surface of the surface texture 13 as a sliding portion is formed of the high-strength polyethylene tape 14. Further, by using the tape, there is an effect that the weight and the thickness can be reduced as compared with the case of using the conventional multifilament yarn. In the present embodiment, the surface texture 13 is composed of the vertical mouth sachet texture, but the present invention is not limited to this, and other weaves may be used.

[Specific Example] A polyester fiber is used as a core structure, and a high-strength polyethylene tape having a width of 2 mm and a thickness of 45 μm is used as a warp yarn of a vertical mouth bag structure constituting a surface structure. A No. 3 nylon monofilament yarn was used to prepare a belt test piece having a width of 8 mm and a length of 150 mm.

The belt test piece was slid on a metal hook at a stroke of 10 mm 300 times per minute with a load of 20 kg. During the sliding test, the test piece was always kept in a wet state by the water dropping device. The state of the belt test piece was observed 2 hours, 5 hours, 10 hours, 15 hours, and 20 hours after the start of the test. The results are shown in Table 1.

A test piece (Comparative Example 1) having the same shape as that of the example using a multifilament yarn in which 45 high-strength polyethylene fibers of 1000 denier are bundled as the warp yarn constituting the surface texture (Comparative Example 1), polyester of 1000 denier A belt test piece using a multifilament yarn containing 60 fibers (Comparative Example 2) and a belt test piece using a multifilament yarn containing 60 fibers of 840 denier Nylon fiber (Comparative Example 3) Table 1 also shows the results of an abrasion resistance test conducted on the above-mentioned materials in the same manner as in the above-mentioned examples.

[0015]

[Table 1]

As can be seen from Table 1, the belt of Comparative Example 1 using the high-strength polyethylene fiber as the material of the multifilament yarn is cut more than the case of using nylon or polyester (Comparative Example 2 or Comparative Example 3). Although it took longer to reach the end, the filaments constituting the multifilament yarn were cut when sliding for 15 hours or more. On the other hand, in the test piece of this example using the high-strength polyethylene tape, no change was observed in the surface condition even after sliding for 20 hours.

[0017]

[Effect of device]

 The belt for tire anti-skid device of the present invention is composed of the high-strength polyethylene tape whose surface texture has high strength and excellent wear resistance. , The individual filaments that make up the thread are not broken. Therefore, the initial excellent wear resistance can be exhibited over a long period of time. That is, it is possible to prevent the belt for tire slipper from being worn and broken for a long period of time due to rubbing against the hook for receiving the slippery tire on the tire or traveling.

Further, by using the tape for the warp yarn having the surface design, the weight and the thickness can be reduced as compared with the case of using the conventional woven fabric of multifilament yarn.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a belt for a tire slip stopper according to an embodiment of the present invention.

FIG. 2 A of the belt for a tire slip stopper shown in FIG.
It is an A line sectional view.

FIG. 3 is a perspective view showing a partially cut-away view of a tire slip stopper that can be mounted on a tire.

FIG. 4 is an enlarged view of a hook portion of FIG.

FIG. 5 is a cross-sectional view of a conventional belt for a tire anti-skid device at right angles to the length direction.

[Explanation of symbols]

 11 High-strength fiber 12 Core structure 13 Surface structure 14 Polyethylene tape 15 Weft yarn

Claims (1)

[Scope of utility model registration request] 1. A belt for a tire non-slip device, comprising: a non-slip net to be mounted on a tire, which is hooked on a hook attached to one end of the non-slip net at regular intervals to fasten the anti-slip net to the tire. A core structure made of high-strength fibers extending in the length direction and a surface structure covering the outer periphery of the core structure, at least the warp yarns of which are formed of a high-strength polyethylene tape. A belt for a tire slip stopper, which is characterized in that