Automatic downshifting and variable speed transmission bicycle

    公开(公告)号:US11724774B2

    公开(公告)日:2023-08-15

    申请号:US17349955

    申请日:2021-06-17

    申请人: Shoujin Li

    发明人: Shoujin Li

    IPC分类号: B62M11/16 B62M9/12 B62M25/04

    CPC分类号: B62M11/16 B62M9/12 B62M25/04

    摘要: The invention discloses an automatic downshifting and variable speed transmission bicycle, comprising a bicycle stand, wherein the bicycle stand is installed with a bottom bracket; the bottom bracket is installed with a bottom bracket sprocket set, and the bottom bracket sprocket set is composed of three chain discs of different sizes; a rear axle of the bicycle is provided with a tower footing, and the tower footing is fixedly installed with a sun gear; one side of the sun gear is provided with a planet carrier, and the planet carrier is installed with planetary twin gears. The invention is easy to start, can run at high speed, has multiple functions, and is reliable in operation, with convenient maintenance and low cost, and is energy saving and environmental-friendly; it has a good market prospect and brings great convenience to cyclists.

    Electric traction drives
    5.
    发明授权

    公开(公告)号:US10056811B2

    公开(公告)日:2018-08-21

    申请号:US15436471

    申请日:2017-02-17

    发明人: Brad P. Pohl

    摘要: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for electric traction drives employing a continuously variable transmission (CVT) having a variator provided with a plurality of tilting traction planets and opposing traction rings. In one embodiment, an electric traction drive is provided with an electromotive device configured to transfer power to or from a traction sun of a CVT. In other embodiments, an electric traction drive is provided with an electromotive device that couples to certain components of a CVT such as a traction ring, a carrier assembly, and a main axle. Various inventive shifting assemblies having shift cams and shift cam cages can be used to facilitate adjusting the transmission speed ratio of a CVT. Various related devices include embodiments of, for example, a power input apparatus, a speed ratio shifter, a shift cam actuator, a shift nut, and a carrier assembly configured to support the tilting traction planets.

    Smart gearing system for bicycle
    6.
    发明授权

    公开(公告)号:US09976630B2

    公开(公告)日:2018-05-22

    申请号:US15599507

    申请日:2017-05-19

    申请人: Kim Leung Luk

    发明人: Kim Leung Luk

    摘要: A bicycle gearing system includes input and output shafts, two planetary gear systems, and a clutch mechanism. The clutch mechanism includes three clutch presser plates for frictional engagement with two clutch disks and a clutch base. A motor rotates a camshaft formed with cams selectively engageable with cam followers for driving the clutch presser plates to rotate. Steels balls are provided within cavities formed between the clutch presser plates and a clutch housing to convert rotation of clutch presser plates to linear force for frictional engagement with the two clutch disks and the clutch base. Different angles of rotation of the camshaft produce different clutch and gear combinations and different gear ratios.

    Multispeed internally geared hub with selectable fixed gear

    公开(公告)号:US09950770B2

    公开(公告)日:2018-04-24

    申请号:US15159270

    申请日:2016-05-19

    发明人: Martin Juhas

    IPC分类号: B62M11/16 B62M11/18 B62M6/55

    CPC分类号: B62M11/16 B62M6/55 B62M11/18

    摘要: A number of variations may include a product that may include a hub. A linked element may be connected with the hub to provide at least one of an input or an output from the hub. The hub may include a shell, a shaft may extend through the shell, and a gear set may be disposed in the shell. The linked element may be connected to the gear set through a rotatable element. A rotatable component may be connected with the gear set. The rotatable element may be engageable with the rotatable component through the gear set. An engagement mechanism may engage and may disengage the gear set from at least one of the shaft or the shell.

    Wheel Hubs and Power Wheels Containing the Same

    公开(公告)号:US20180056774A1

    公开(公告)日:2018-03-01

    申请号:US15251685

    申请日:2016-08-30

    发明人: Yet Chan

    IPC分类号: B60K7/00 B60K17/14 B60K17/02

    摘要: A wheel hub capable of being coupled to an axle of a wheel such that the wheel hub is rotatable around the axle. The wheel hub includes a hub housing adapted to be rotatably supported on the axle, and a motor including a stator and a rotor. The stator is adapted to be fixedly connected to the axle. The rotor is configured to be rotatable with respect to the stator. The rotor includes a circular rotor housing inside which a gear reduction module is located. The output of the gear reduction module is connected to a one-way transmission module which in turn is adapted to drive the hub housing to rotate. As the gear reduction module and the one-way transmission module are contained within the rotor, the size of the power wheel can be reduced without sacrificing the performance.