Patent ID: 11895388
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A shutter unit comprising:
a base plate on which an opening is formed;
a first blade member configured to be movable between a closed state in which the first blade member closes the opening and a retracted state in which the first blade member retracts from the opening;
a first driving member configured to be biased in a first direction by a first biasing member;
a second driving member configured to be biased by a second biasing member in a second direction opposite to the first direction;
a first charging member configured to cause the first driving member to move in the second direction against a biasing force on the first driving member of the first biasing member;
a second charging member configured to cause the second driving member to move in the first direction against a biasing force on the second driving member of the second biasing member; and
a motor configured to supply a driving force to the first charging member and the second charging member,
wherein in a case where the first charging member causes the first driving member to move, the motor rotates in a direction opposite to a rotation direction in a case where the second charging member causes the second driving member to move.