To miniaturize a drive unit.SOLUTION: According to a certain embodiment of the present invention, a drive unit (20) includes: an electric motor (25) provide with an output shaft (2522) having an output gear (252A); a pedal crank shaft (22) supported rotatably by a housing (21) through the housing (21), and provided with a driven gear (233); and a transmission mechanism (40) for transmitting torque of the output gear (252A) of the electric motor (25) to the driven gear (233). The transmission mechanism (40) includes a reduction gear (24) supported rotatably by the housing (21), and an idle gear (41) supported rotatably by the housing (21). The reduction gear (24) increases the torque of the output gear (252A) of the electric motor (25), and the increased torque is transmitted to the driven gear (233) through the idle gear (41).SELECTED DRAWING: Figure 2

    【課題】駆動ユニットを小型化する。【解決手段】本発明のある実施形態に係る駆動ユニット(20)は、出力歯車(252A)を有する出力軸(2522)を備える電動モータ(25)と、ハウジング(21)を貫通し、ハウジング(21)によって回転可能に支持されるペダルクランク軸(22)であって、被駆動歯車(233)が設けられたペダルクランク軸(22)と、電動モータ(25)の出力歯車(252A)のトルクを被駆動歯車(233)に伝達する伝達機構(40)とを備える。伝達機構(40)は、ハウジング(21)によって回転可能に支持される減速機(24)と、ハウジング(21)によって回転可能に支持されるアイドルギア(41)とを有する。減速機(24)は、電動モータ(25)の出力歯車(252A)のトルクを増加させ、増加したトルクは、アイドルギア(41)を介して被駆動歯車(233)に伝達される。【選択図】図2


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    Title :

    DRIVE UNIT AND ELECTRICALLY-DRIVEN AUXILIARY VEHICLE


    Additional title:

    駆動ユニットおよび電動補助車両


    Contributors:

    Publication date :

    2021-11-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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