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    • 29. 发明专利
    • ELECTRIC DRIVING AXLE
    • JPS60131319A
    • 1985-07-13
    • JP23978783
    • 1983-12-21
    • AKEBONO BRAKE IND
    • FUKAYA TOSHIO
    • B60K7/00B60K17/16F16H48/08
    • PURPOSE:To secure such an electric automobile axle as being compact in size and lightweight, besides extensive in a covering distance, by making up an electric motor with an axle tube and a hollow motor shaft inserted into the former, while directly connecting the motor shaft to a differential case, and inserting an axle shaft into the motor shaft as constitution. CONSTITUTION:Each of hollow motor shafts 2a and 2a is set up at both ends of the inner part of an axle tube 1, while both ends of a differential case 3a are directly connected to each inner end of these shafts 2a and 2a with a bolt 3a'. The other ends of axle shafts 4 and 4 coupled with side gears 3c and 3c of a differential gear 3 are rotatably inserted into the axle tube 1 with some play via bearings 5 and 5. In addition, both these motor shafts 2a and 2a install each of bearings 6a and 6a interposingly between these axle shafts 4 and 4 as well as instal a roller bearing 7 or the like interposingly between the differential case 3a and the axle tube 1 and support them on the axle tube 1 and the axle shaft 4 free of relative rotation. With this constitution, miniaturization and lightweightiness for an electric automobile are well promotable.