PROBLEM TO BE SOLVED: To provide a wheel drive device having small-size and capable of outputting high torque.SOLUTION: A wheel drive device 1 is equipped with a motor 2, and a speed reducer 3 for decelerating and outputting the rotations of the motor 2. The speed reducer 3 is equipped with a sun gear 41 coaxially disposed with a rotary shaft 33 of the motor 2, a plurality of planetary gears 42 engaged with the sun gear 41 and disposed at intervals in a circumferential direction, a carrier 43 for supporting each planetary gear 42 so as to rotate about a center of the planetary gear, and an internal gear 44 engaged with each planetary gear 42. At an inner side end portion of the internal gear 44, a first rim portion 74 extended outward in a diametrical direction is formed, and at an outer side end portion of the internal gear 44, a second rim portion 75 extended outward in the diametrical direction is formed. A tire 5 is supported by the first and second rim portions 74 and 75 at its inner peripheral edge portion to be installed on an outer periphery of the internal gear 44.

    【課題】小型で高トルクを出力可能な車輪駆動装置を提供する。【解決手段】車輪駆動装置1は、モータ2と、モータ2の回転を減速して出力する減速機3とを備える。減速機3は、モータ2の回転軸33と同軸上に配置される太陽歯車41と、太陽歯車41に噛合するとともに周方向に間隔を空けて配置される複数の遊星歯車42と、各遊星歯車42を該遊星歯車42の中心周りで回転可能に支持するキャリヤ43と、各遊星歯車42と噛合する内歯車44とを備える。内歯車44の内方側端部には、径方向外側に延出された第1リム部74が形成され、内歯車44の外方側端部には、径方向外側に延出された第2リム部75が形成される。そして、タイヤ5は、その内周縁部が第1及び第2リム部74,75によって支持されることで、内歯車44の外周に装着される。【選択図】図1


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    Titel :

    WHEEL DRIVE DEVICE


    Weitere Titelangaben:

    車輪駆動装置


    Beteiligte:

    Erscheinungsdatum :

    2015-06-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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