| 摘要 |
A motor drive for a camera has a motor drive system which comprises a motor, a circuit for driving the motor including two switches, means for blocking film transportation in a rewinding direction, a first manually operable member connected to the rewind blocking means and movable between first and second positions, and a second manually operable member for engagement with a supply spool and connected to the motor and movable between first and second positions. One of the two switches in the circuit may be opened and closed in response to movement of the first operable member to its first and second positions, respectively. In the second position of the first operable member, the rewind blocking means is rendered ineffective. The other switch is opened and closed in response to movement of the second operable member to its first and second positions, respectively. In its second position, the second operable member is engageable with the supply spool so that the spool may be rotated by the drive from the motor to take up the film thereon.
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