| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a door drive device for a vehicle which can sufficiently decelerate the rotation of a motor while enhancing the degree of freedom in arrangement in a vehicle door by reducing a size smaller in the width direction of the vehicle as a whole. <P>SOLUTION: In a drive member 21, a drum 23 is arranged in such a manner as to at least partially overlap a space of an interval L in the width direction of the vehicle which is formed of an outer shape of a drive motor 22. The drive member includes: a first small-diameter gear portion 41 which is connected to a rotating shaft 22b of the drive motor 22; a transmission gear 42 which comprises a first large-diameter gear portion 42d constituting an intersecting shaft gear G1 together with the first small-diameter gear portion 41, and a second small-diameter gear portion 42e arranged at one side in the axial-direction separated from the rotating shaft 22b of the first large-diameter gear portion 42d; a sun gear 48 which has a second large-diameter gear portion 48b and a sun gear portion 48a arranged at the other side in the axial-direction and approximating the rotating shaft 22b of the second large-diameter gear portion 48b; a ring gear 46 which constitutes a fixed shaft; and a carrier 47 which has a planetary gear 54 and is connected to the drum 23 in an integrally rotatable manner. <P>COPYRIGHT: (C)2011,JPO&INPIT |
