| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a shutter device that decreases a peak value of a drive current value, reliably prevents bound of a shutter blade group, and furthermore, is able to improve flexibility in design. <P>SOLUTION: The shutter device comprises: a blade drive member 105 configured to run a shutter blade group 103c to a run completed position that closes an aperture 101c by the pressing force of a drive spring; a charge member 110 configured to move the blade drive member 105 to a run stand-by position for the shutter blade group 103c against the pressing force; an arm member 501 configured to transmit the drive force to the charge member 110 in order to move the blade drive member 105 to the run standby position; a locking member 112 configured to lock the blade drive member 105 at the run completed position; a release member 502 configured such that when the drive force is transmitted to the charge member 110 from the arm member 501, the drive force is transmitted to the locking member 112 in order to move the locking member 112 in the direction in which the blade drive member 105 is unlocked; a cam 504 configured to drive the arm member 501; and a cam member 503 having a cam 505 configured to drive the release member 502. <P>COPYRIGHT: (C)2012,JPO&INPIT |
