| 摘要 |
PROBLEM TO BE SOLVED: To provide a blade driving device for cameras constituted in such a manner that the collision of two blades within a blade chamber can be prevented by providing a belt-like member extremely simple in mounting work. SOLUTION: The two shutter blades 7, 8 which are simultaneously rotated back and forth in mutually opposite directions by driving pins 4c with respect to blade shafts 1g, 1h erected on a main base plate 1 are rotatably mounted. Also, the rectilinear belt-like member 9, which is disposed between two sheets of blades 7 and 8, is mounted with the holes formed at its both ends movably in their axial direction with respect to the two mounting shafts 1n, 1p erected on the main base plate 1. Consequently, the blade driving device for cameras which obviates the collision of the two shutter blades 7, 8 during the actuation can be realized at a low cost. COPYRIGHT: (C)2008,JPO&INPIT
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