公开(公告)号：US20160107721A1

公开(公告)日：2016-04-21

申请号：US14871679

申请日：2015-09-30

Applicant: Shimano Inc.

Inventor： Hioryuki URABE ,  Tetsuya HINO ,  Takashi YAMAMOTO

IPC: B62M6/55 ,  B60L11/18 ,  B62K11/00 ,  B60K17/06

CPC classification number: B62M6/55 ,  B60K17/06 ,  B60L11/007 ,  B60L11/18 ,  B60L15/2045 ,  B60L15/2054 ,  B60L2200/12 ,  B60L2240/12 ,  B60L2240/423

Abstract: A bicycle assist unit is basically provided with a transmission and an assist motor. The transmission is configured to receive rotation of a crankshaft. The transmission includes a planetary gear mechanism. The planetary gear mechanism includes an output unit, a plurality of ring gears and a rotation restricting mechanism that selectively restricts rotation of the ring gears. The assist motor is configured to output a second drive force that is added to a first drive force that is outputted from the transmission on a power transmission path between the output unit and a front sprocket that is attached to the crankshaft.

Abstract translation: 自行车辅助单元基本上设置有变速器和辅助马达。 变速器构造成接收曲轴的旋转。 变速器包括行星齿轮机构。 行星齿轮机构包括输出单元，多个环形齿轮和选择性地限制环形齿轮的旋转的旋转限制机构。 辅助马达构造成输出第二驱动力，该第二驱动力被添加到在输出单元与附接到曲轴的前链轮之间的动力传递路径上从变速器输出的第一驱动力。