| 摘要 |
PROBLEM TO BE SOLVED: To make a moving barrel having a photographing lens move between a collapsibly mounted position where it is housed inside a camera body and an extended position where it is extended from the camera body by utilizing the driving in one direction of a single motor and to utilize the driving of a motor in the other direction for another mechanism. SOLUTION: A cam 48 moving the moving barrel forward and backward is continuously connected to a cam barrel 32 along in the rotating direction thereof. Then, when the barrel 32 is rotated by the driving of the single motor in one direction, the moving barrel 7 is infinitely reciprocatingly moved so that it is moved to the extended position from the collapsibly mounted position and returned to the collapsibly mounted position again through the extended position. The driving of the motor in the other direction is switched by a driving switching mechanism and transmitted to a film feeding mechanism.
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