| 摘要 |
PURPOSE:To wind and rewind a film lightly and smoothly, by always connecting one of a winding shaft or a rewinding shaft to a driving source, and also providing a one-way clutch between the shaft and a winding spool or a rewinding spool. CONSTITUTION:Forward and reverse rotations of a driving source gear 1 are transmitted to a branch gear 3 by a gear train 2, from which they are transmitted to a cut-off and contact gear 6 through a winding shaft gear 4 and a sprocket shaft gear 5. As for the cut-off and contact gear 6, when the driving source gear 1 is rotated in the winding direction, a cut-off and contact lever 7 becomes a state that it is stopped by a stopper 8 be receiving frictional torque by a rotation of the sprocket shaft gear 5, is detached from a rewinding driving gear 9, and no influence is exerted on a rotation of a carrier gear 11 and a rewinding shaft gear 12. Accordingly, winding is executed when the branch gear 3 rotates the winding shaft gear 4 and its rotation is transmitted to a winding spool 14 by a one-way clutch 13. |
