| 摘要 |
PURPOSE:To omit an on-and-off operation of the side of a winding spool in case of rewinding, by providing a one-way clutch for transmitting only a rotation in the winding direction to the winding spool, between a winding driving shaft for both a rotation in the winding direction and a rotation in the rewinding direction, and the winding spool. CONSTITUTION:Between a winding shaft gear 1 and a winding spool 2 or a sprocket 4, a one-way clutch 7 is used, and this clutch 7 is formed by an inside wall 1a of the sinding shaft gear 1, a clutch disk 7a, and a clutch slanting surface 7b of a clutch plate installed to the upper end of the winding spool 2. Also, this device is constituted so that a rotation speed of a winding driving shaft M in the rewinding direction in case of rewinding is higher than a rotation speed of the winding spool 2 in the rewinding direction by a film to be rewound. |
