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1. 发明授权

US6102820A Auto-tensioner 失效
标题翻译：自动张紧器
公开(公告)号：US6102820A
公开(公告)日：2000-08-15
申请号：US116940
申请日：1998-07-17
申请人： Hiroaki Imaharu , Hajime Nakayama , Hiromichi Suzuki
发明人： Hiroaki Imaharu , Hajime Nakayama , Hiromichi Suzuki
IPC分类号： F16H7/08 , F16H7/12
CPC分类号： F16H7/1218 , F16H2007/081 , F16H2007/0893
摘要： An auto-tensioner that inhibits the generation of heat in an insert bearing made of a synthetic resin. An outer shell of an arm member is swingably supported on an inner shaft of a base member through an insert bearing made of a synthetic resin, and a tension pulley carried at a tip end of the arm member, is brought into pressure contact with an endless belt by biasing the arm member with a spring. By subjecting an inner surface of the outer shell in sliding contact with an outer peripheral surface of the insert bearing, to shot peening prior to assembly, the arithmetically averaged roughness Ra and the maximum height Ry of inner peripheral surface are regulated into ranges of1.times.10.sup.-6 m.ltoreq.Ra.ltoreq.10.times.10.sup.-6 mRy.ltoreq.60.times.10.sup.-6 m.
摘要翻译：一种自动张紧器，其抑制在由合成树脂制成的插入轴承中产生热量。臂构件的外壳通过由合成树脂制成的插入轴承可摆动地支撑在基座构件的内轴上，并且承载在臂构件的顶端的张紧轮与环形件带通过用弹簧偏压臂构件。通过使外壳的内表面与插入轴承的外周面滑动接触，在组装之前进行喷丸硬化，将内周面的算术平均粗糙度Ra和最大高度Ry调节为1×10 -3 6μmRa = 10x10 -6 m Ry = 60×10 -6 m。

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