| 摘要 |
PURPOSE:To improve the radiation of a coreless armature through a body to be turned by a mechanism wherein a brush is disposed at the inside of the armature, and the body to be turned is directly coupled with an outer surface of a bottom wall at the outer circumferential side of a bearing section mounted at the outside of the bottom wall in a projecting shape. CONSTITUTION:An outer circumferential wall 11b of a cuplike coreless armature 11 is disposed into an annular void made up by a magnet 1 fixed at the outer circumferential side of a cylindrical inside yoke 2 and a cylindrical outer yoke 21, and a brush 6 mounted to a center piece 3 is sliding-contacted with a commutator 18 installed at the inner surface side of a bottom wall 11a of the armature 11. The armature 11 is axially supported to a shaft 4 extending from the center piece 3 by a bearing holding section 11c projected to the outside from a central section of the bottom wall 11a of the armature 11 while a body to be turned 27 such as a blower is directly mounted to projections 19 integrally disposed on an outer circumferential surface of the bottom wall 11a. |
