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    • 7. 发明专利
    • VARIABLE NON-SLIP DEVICE
    • JPS6045407A
    • 1985-03-11
    • JP15289083
    • 1983-08-21
    • MATSUOKA YOSHINORI
    • MATSUOKA YOSHINORI
    • B60B15/12B60C27/00B60C27/04
    • PURPOSE:To prevent slippage and damages of roads by providing a disc-shaped main body with a plurality of spikes in radial arrangement in such a manner that the spikes are capable of projection and depression by means of a variable mechanism, detachably mounting it on an outer side of a wheel and projecting or depressing the spikes. CONSTITUTION:A main body 1 of a device is provided with a guide 2, sleeves 3, spike guides 4, metal fitting 5 and a cushioning material 6. A connecting rod 7 is fitted into the sleeve 3 and fastened by means of a nut 8. The main body 1 is mounted on an outer side of a wheel in parallel with a tyre. An inner cylinder of a variable body 9 having ribs 10 and a variable means 11 is fitted to the metal fitting 5. Further to the ribs 10 are fitted rotational fittings 14 of a variable fitting 12 having variable blades 13 and a sleeve 15. A fastening fitting 17 is screwed to the sleeve 15. Thus the variable body 9 is rotated by means of the variable fitting 12 and the spikes 16 are suitably projected or depressed, followed by fastening of the fastening fitting 17.