发明名称 |
Power transmission device |
摘要 |
A power transmission device includes a first one-way clutch that transmits a rotational power of a pulley to a rotating shaft, and a second one-way clutch that transmits a rotational power of a rotor of a motor to the rotating shaft. The first one-way clutch is of inner cam type in which an engagement cam-surface is formed in an outer periphery of a first inner ring, while the second one-way clutch is of outer cam type in which an engagement cam-surface is formed in an inner periphery of a second outer ring. This arrangement improves engagement performance of the first one-way clutch as well as reducing heat generation of the second one-way clutch, so that the lifetime of grease is prolonged.
|
申请公布号 |
US7278938(B2) |
申请公布日期 |
2007.10.09 |
申请号 |
US20040786618 |
申请日期 |
2004.02.26 |
申请人 |
KOYO SEIKO CO., LTD. |
发明人 |
ICHIHARA TAKAHIRO;WATANABE HAJIME;FUJIWARA HIDEKI;MERA MINORU;ADANIYA TAKU;KANAI AKINOBU;USUI NAOKI;ARAI TOMOHARU |
分类号 |
F16H63/00;F02B63/06;F16D3/34;F16D41/06;F16D41/066;F16H53/00;F16H55/36;H02K7/10 |
主分类号 |
F16H63/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|