SHIFTING AND GEAR ASSEMBLY FOR TRANSMISSION
    3.
    发明公开

    公开(公告)号:EP4400743A2

    公开(公告)日:2024-07-17

    申请号:EP24167102.3

    申请日:2022-08-31

    IPC分类号: F16H3/083

    摘要: A shifting and gear assembly for a transmission has: a hollow shaft; first and second gears on the hollow shaft, the hollow shaft defining first and second apertures in axial alignment with the first and second gears; first and second shift pawls disposed in the first and second apertures; a cam disposed in the hollow shaft; and a shift actuator operatively connected to the cam for selectively translating the cam. In response to the cam being axially aligned with the first shift pawl, the cam displacing the first shift pawl radially outward to engage the first gear to rotationally fix the first gear to the hollow shaft. In response to the cam being axially aligned with the second shift pawl, the cam displacing the second shift pawl radially outward to engage the second gear to rotationally fix the second gear to the hollow shaft.

    POWERTRAIN FOR ELECTRIC BICYCLE
    5.
    发明公开

    公开(公告)号:EP4400402A2

    公开(公告)日:2024-07-17

    申请号:EP24166966.2

    申请日:2022-08-31

    IPC分类号: B62M9/16

    摘要: A powertrain for an electric bicycle has: an electric motor; a motor gear connected to the motor; a crankshaft for connecting to crank arms; an input shaft driven by the crankshaft; an input gear connected to the input shaft and driven by the motor gear; a plurality of first gears mounted to the input shaft; a countershaft; a plurality of second gears rotationally mounted to the countershaft, each second gear being driven by a corresponding first gear; a plurality of third gears rotationally mounted to the countershaft; an output shaft; a plurality of fourth gears mounted to the output shaft, each fourth gear being selectively driven by a corresponding third gear; a first shift assembly for selectively rotationally fixing any one second to the countershaft; a second shift assembly for selectively rotationally fixing any one third gear to the countershaft; and a drive sprocket driven by the output shaft.