| 摘要 |
A power device for a window regulator is disclosed. The window regulator is of a type which regulates a window pane by moving pull-up and pull-down drive cables connected to the window pane. The power device comprises a motor-powered driving part which includes an output shaft which has a regular polygonal cross section; and a cable winder part including a drum about which the pull-up and pull-down drive cables are wound, the drum having a coupling bore to which the output shaft is engaged, the coupling bore having a regular polygonal star-like cross section with equally spaced angular recesses. The number of the equally spaced angular recesses of the coupling bore is integral times as many as that of the angles of the polygonally cross-sectioned output shaft.
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