公开(公告)号：US20160288872A1

公开(公告)日：2016-10-06

申请号：US15057984

申请日：2016-03-01

Applicant: Shimano Inc.

Inventor： Satoshi SHAHANA ,  Tomohisa YAMAMOTO ,  Hiroyuki URABE ,  Yusuke NISHIKAWA

IPC: B62M6/55

CPC classification number: B62M6/55 ,  B62K25/286 ,  B62M11/145 ,  F16H1/28 ,  F16H3/72

Abstract: A bicycle drive unit is basically provided with an assist motor and a housing such that the distance between a crankshaft and a rear end of the housing is prevented from becoming long. The assist motor is configured to apply an assisting force to a manual drive force, which is inputted from a crankshaft. The housing is provided to the assist motor and at least a part of the crankshaft. The housing is disposed around the crankshaft. The housing is formed so that, when the bicycle drive unit is attached to a bicycle frame, the minimum distance from a center axis of the crankshaft and the rear end surface of the frame on the rear end side of the housing is equal to or less than 50 mm and greater than the radius of the crankshaft, as viewed from parallel to the center axis of the crankshaft.

Abstract translation: 自行车驱动单元基本上设置有辅助马达和壳体，使得防止曲轴与壳体的后端之间的距离变长。 辅助马达构造成对从曲轴输入的手动驱动力施加辅助力。 壳体设置在辅助马达和曲轴的至少一部分上。 壳体围绕曲轴设置。 壳体形成为使得当自行车驱动单元附接到自行车车架时，距壳体的中心轴线和车架的后端侧的框架的后端表面的最小距离等于或小于 比平行于曲轴的中心轴线的曲轴半径大50mm以上。

公开(公告)号：US20160347411A1

公开(公告)日：2016-12-01

申请号：US14720944

申请日：2015-05-25

Applicant: SHIMANO INC.

Inventor： Tomohisa YAMAMOTO ,  Satoshi SHAHANA ,  Makoto USUI

IPC: B62M9/12 ,  B62M6/00

CPC classification number: B62M6/45 ,  B62M6/55 ,  B62M9/122 ,  B62M9/132 ,  B62M25/08 ,  B62M2025/003

Abstract: A bicycle transmission system comprises a first input device, a transmission, an assist device, and a controller. The first input device is configured to receive a first input operation from a user. The transmission is configured to transmit a pedaling torque to a wheel at a current gear ratio among a plurality of gear ratios. The assist device is configured to assist a rotation of the wheel at a current assist ratio among a plurality of assist ratios. The controller is configured to change the current gear ratio into a predetermined gear ratio without changing the current assist ratio based on the first input operation in a first condition. The controller is configured to change the current gear ratio into a predetermined gear ratio and change the current assist ratio into a predetermined assist ratio based on the first input operation in a second condition.

Abstract translation: 一种自行车传动系统包括第一输入装置，变速器，辅助装置和控制器。 第一输入设备被配置为从用户接收第一输入操作。 变速器构造成以多个齿轮比之中的当前齿轮比将踏板转矩发送到车轮。 所述辅助装置被构造成辅助所述车轮的转动在多个辅助比之间的当前辅助比。 控制器被配置为在第一条件下基于第一输入操作改变当前辅助比，将当前齿轮比改变为预定的齿轮比。 控制器被配置为将当前齿轮比改变为预定的齿轮比，并且在第二状态下，基于第一输入操作将当前辅助比改变为预定辅助比。