| 摘要 |
PROBLEM TO BE SOLVED: To provide: a blade driving device that enables stabilization of the motion of blades and that is advantageous to downsizing or high-speed motion of the blades, and a shutter apparatus; and an imaging apparatus.SOLUTION: A blade driving device includes: an opening forming member for forming an opening through which light passes; a blade that is inserted into or withdrawn from the opening; and a driving pin 41a engaging with a long hole 22b the blade has to transmit power to the blade. The opening forming member is provided with a contact part contacting with the driving pin 41a in order to stop the motion of the blade. The driving pin 41a moves in a reciprocating manner between a driving start position located in one end side of the long hole 22b in a longitudinal direction and a driving stop position located in the other end side facing the one end of the long hole 22b in the longitudinal direction, and allows the blade to be repeatedly inserted into or withdrawn from the opening. A housing withdrawing part for substantially housing the driving pin 41a, when the driving pin 41a moves to a direction separating from the driving stop position due to an impact caused by contact with the contact part, is provided to communicate with the other end side of the long hole 22b in the longitudinal direction.SELECTED DRAWING: Figure 6 |
