| 摘要 |
A drive mechanism for actuating an opening frame includes a toothed crown and a toothed wheel engaging at least one section of the toothed crown. The drive mechanism also includes an arm driving the toothed wheel on the toothed crown, a pinion designed to be driven in rotation around an axis and that is engaged with one end of the arm, and a cable for actuating the opening frame that is attached to the toothed wheel. A low-power motor can be used to open and close the opening frame electrically.
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