| 摘要 |
A motor drive device for a long film which is provided with a take-up shaft having a coupling portion at one end thereof and an extraneously operable take-up knob at the other end thereof and in which the engagement and disengagement between the spool shaft in a film magazine and the coupling portion is made possible by axial sliding movement of the take-up shaft and film take-up is effected by rotating the take-up shaft by a motor has a biasing member for normally biasing the take-up shaft in a direction in which the coupling portion engages the spool shaft.
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