BICYCLE DRIVE UNIT
    12.
    发明申请
    BICYCLE DRIVE UNIT 审中-公开

    公开(公告)号:US20190112000A1

    公开(公告)日:2019-04-18

    申请号:US16157383

    申请日:2018-10-11

    Applicant: Shimano Inc.

    Abstract: A method for mounting a bicycle drive unit to a frame of a bicycle, in which the bicycle drive unit includes a housing, a crankshaft and a propulsion assist motor. The housing has a first portion and a second portion. The crankshaft is provided to the first portion. The propulsion assist motor is provided to the second portion and includes a rotational axis extending in a direction intersecting a direction in which the crankshaft extends. The method includes a first step of arranging the first portion at a position for mounting the first portion on the frame, and a second step of rotating the housing about an axis parallel to a rotational axis of the crankshaft and inserting the second portion into an opening of the frame after the first step.

    BICYCLE DRIVE UNIT
    13.
    发明申请
    BICYCLE DRIVE UNIT 审中-公开

    公开(公告)号:US20190111998A1

    公开(公告)日:2019-04-18

    申请号:US16157357

    申请日:2018-10-11

    Applicant: Shimano Inc.

    Abstract: A bicycle drive unit includes a housing, crankshaft and a propulsion assist motor. The housing is configured to be mounted on a frame of a bicycle. The housing includes a first portion and a second portion. The crankshaft is provided to the first portion of the housing. The propulsion assist motor is provided to the second portion of the housing and configured to assist propulsion of the bicycle. The propulsion assist motor includes a rotational axis extending in a direction intersecting a direction in which the crankshaft extends. The second portion has a maximum dimension of smaller than or equal to 75 mm in a direction orthogonal to the rotational axis of the propulsion assist motor.

    BICYCLE DRIVE UNIT
    14.
    发明申请
    BICYCLE DRIVE UNIT 审中-公开

    公开(公告)号:US20180017152A1

    公开(公告)日:2018-01-18

    申请号:US15209686

    申请日:2016-07-13

    Applicant: SHIMANO INC.

    CPC classification number: F16H57/025 B62K25/286 B62K25/30 B62M1/36 B62M6/55

    Abstract: A bicycle drive unit comprises a housing configured to be mounted to a first base member. The housing includes a first wall at least partly defining an internal space to at least partly accommodate a bicycle crank having a crank rotational axis. The first wall includes a first transmitting surface disposed to at least partly face upward in a bicycle upright state where the crank rotational axis horizontally extends and the housing is mounted on the first base member. The first transmitting surface is configured to face a first receiving surface of the first base member to transmit an upward force from the housing to the first base member. The first transmitting surface being at least partly disposed below the crank rotational axis in the bicycle upright state.

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