| 摘要 |
PURPOSE:To shorten the axial whole length of an apparatus including a feeder brush by conducting the electrical connection of a brush and a ring conductive part within a through hole provided in a printed board. CONSTITUTION:A printed board 3 is stuck to the surface of a bearing stand 4. The inner surface of said bearing stand 4 is fitted with a pair of rectifying brushes 20 connected with a commutator 2 stuck to a shaft 1. The surface of a printed board 3 is provided with a pair of ring conductive parts 30 and feeder brushes 35 contact said conductive parts 30, 30, respectively. Also, said conductive parts 30 are electrically connected with rectifying brushes 20, respectively. To conduct said connection, conductive pin parts 7 are inserted into and pressure welded to through holes 32 formed in the printed board 3 and respectively connected with the ring conductive parts 30. Thus, said pin parts 7 do not protrude from the surface of the ring conductive parts 30 in the printed board 3 so that said feeder brushes 35 are arranged freely and the axial whole length of an apparatus can be shortened.
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