To provide a helical tooth belt that increases rigidity without increasing a thickness of the helical tooth belt, and when used in a belt transmission device driven at a high load or high speed rotation, can further reduce noise and vibration while maintaining transmission performance.SOLUTION: A tooth belt 30 has a back portion 31, core wires 33 arranged and embedded in a belt width direction, and a plurality of teeth 32 that are provided at predetermined intervals in a belt longitudinal direction on one surface of the back portion 31, in which each tooth is inclined in the belt width direction. The surface of the teeth 32 and a part of the one surface of the back portion 31 are configured of a tooth cloth 35. The tooth pitch P of the teeth 32 is 1.5 mm or more and less than 2.0 mm, and a thickness of the back portion 31 is 0.4 mm to 1.2 mm. The core wire 33 is a twisted cord including high-strength glass fiber or carbon fiber, and the ratio of a total value of the distance d between the core wire 33 and the core wire 33 adjacent in the belt width direction to the belt width W is in a range of 20% to 60%.SELECTED DRAWING: Figure 3

    【課題】はす歯ベルトの厚みを大きくすることなく剛性を高め、高負荷又は高速回転で駆動されるベルト伝動装置に使用された場合に、伝動性能を保持しつつ騒音および振動をより低減できるはす歯ベルトを提供する。【解決手段】背部31と、ベルト幅方向に配列されて埋設された心線33と、背部31の一方の表面にベルト長手方向に沿って所定間隔で設けられ、それぞれがベルト幅方向に対して傾斜する複数の歯部32とを有するはす歯ベルト30であって、歯部32の表面および背部31の一方の表面の一部が、歯布35で構成されており、歯部32の歯ピッチPが、1.5mm以上2.0mm未満であり、背部31の厚みが0.4mm以上1.2mm以下であって、心線33は高強度ガラス繊維または炭素繊維を含む撚りコードであり、ベルト幅方向に隣り合う心線33と心線33との間隔dの合計値の、ベルト幅Wに対する割合が20%以上60%以下の範囲である。【選択図】図3


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    Title :

    HELICAL TOOTH BELT AND BELT TRANSMISSION DEVICE


    Additional title:

    はす歯ベルトおよびベルト伝動装置


    Contributors:

    Publication date :

    2019-10-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16G Riemen, Kabel oder Seile, vorwiegend für Antriebszwecke , BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES / B62D MOTOR VEHICLES , Motorfahrzeuge / D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS , Kräuseln oder Texturieren von Fasern, Fäden, Garnen oder Zwirnen / F16H Getriebe , GEARING



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