Shutter drive device, shutter device, and imaging device

A shutter drive device configured to drive a shutter mechanism, the shutter drive device comprising:

• a base member;
• an actuator fixed to the base member and configured to produce a driving force to drive the shutter mechanism;
• a first drive member having a rotational axis on which to rotate, the first drive member being rotatably supported by the base member and configured to be rotated by the driving force of the actuator;
• and
• a second drive member configured to transmit the driving force of the actuator to the shutter mechanism,
• the first drive member including a cam component configured to hold the shutter mechanism via the second drive member, the cam component having a first sliding face and a second sliding face, the first sliding face being configured to slide with the second drive member, and the second sliding face being configured to slide with the second drive member after the first sliding face has slid with the second drive member, and
• the first drive member being subject to rotational resistance from the second drive member, the rotational resistance experienced by the first drive member when the second sliding face slides with the second drive member is greater than the rotational resistance experienced by the first drive member when the first sliding face slides with the second drive member.