| 摘要 |
<p>A blind winding drum comprising a lever operated clutch mounted in a casing (13) having a cover (16). The clutch comprises a disc (2) having a shaft (3) with a decreasing stepped diameter, on the outer end of which the operating lever (5) is mounted. The face of the disc from which the shaft (3) protrudes has an annular collar (6) with an open sector (7) in which a pawl (8) is floatingly disposed, the pawl (8) being housed between an externally toothed gear ring (9) and disposed on the outer zone of the annular collar (6). A circular flange (10) is placed on one of the faces of the reel (12) between the annular collar (6) and the shaft (3) of the disc (2), the entire assembly fitting into a cylindrical housing (1) inside the casing (13), which housing incorporates a rachet (14) for blocking the toothed gear ring (9) in one direction and for allowing its free turning in the opposite direction. <IMAGE></p> |
