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公开(公告)号：US11719309B2
公开(公告)日：2023-08-08
申请号：US18090338
申请日：2022-12-28
发明人： Kazuyuki Tsubakino
CPC分类号： F16G1/28 , D02G3/16 , D02G3/26 , D02G3/447 , F16G1/10 , F16G1/16 , F16H7/023 , D10B2101/12 , D10B2505/02
摘要： A transmission system using a toothed belt includes a belt body made of elastomer and a core wire made of carbon fiber and provided so as to be embedded in the belt body and form a helix having a pitch in a belt width direction. The belt body includes a flat band portion having a horizontally long rectangular cross section and a plurality of tooth portions integrally provided on an inner peripheral side of the flat band portion. A belt tension T0.2 per belt width of 1 mm when a belt elongation rate is 0.2% is 70 N/mm or more, an amount of backlash between the toothed belt and a toothed pulley is 0.10 mm or more and less than 0.65 mm, a hardness of the belt body is 89° or more in JIS K 6253 Durometer Type A, and a surface dynamic friction coefficient is 1.5 or less.
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公开(公告)号：US11644082B2
公开(公告)日：2023-05-09
申请号：US17994270
申请日：2022-11-25
发明人： Kazuyuki Tsubakino
CPC分类号： F16G1/28 , D02G3/26 , D02G3/44 , F16G1/26 , D10B2101/12 , D10B2401/06 , D10B2505/00
摘要： A power transmission belt includes a belt body made of an elastomer, and a cord made of carbon fibers and embedded in the belt body. The belt tension T0.2 per 1 mm belt width at 0.2% of a belt extension rate is 70 N/mm or more. The belt tension T0.5 per 1 mm belt width at 0.5% of the belt extension rate is 220 N/mm or more. The ratio of the belt tension T0.2 to the belt tension T0.5 is 0.33 or more.
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