Shutter apparatus and image pickup apparatus

摘要

A shutter apparatus includes a blade member, a blade moving member, a locking member, a cam member, and a restriction member. The cam member moves the locking member from the locking position to the non-locking position so that the blade moving member moves from the closing position to the opening position. The restriction member moves from the non-restriction position to the restriction position after the blade moving member moves from the closing position to the opening position. The cam member moves the locking member in a direction opposite to a direction from the non-locking position to the locking position so that the locking member moves the restriction member from the restriction position to the non-restriction position.

主权项

1. A shutter apparatus comprising:
a blade member configured to open and close an exposure opening; a blade moving member configured to move between an opening position in which the blade member opens the exposure opening, and a closing position in which the blade member closes the exposure opening; a locking member configured to move between a locking position in which the blade moving member is locked at the closing position, and a non-locking position in which the blade moving member is not locked at the closing position; a cam member including a cam portion which abuts against the locking member so as to move the locking member from the locking position to the non-locking position; and a restriction member configured to move between a restriction position in which a movement of the blade moving member from the opening position to the closing position is restricted, and a non-restriction position in which the movement of the blade moving member from the opening position to the closing position is not restricted, wherein the cam member moves the locking member from the locking position to the non-locking position so that the blade moving member moves from the closing position to the opening position, wherein the restriction member moves from the non-restriction position to the restriction position after the blade moving member moves from the closing position to the opening position, and wherein the cam member moves the locking member in a direction opposite to a direction from the non-locking position to the locking position so that the locking member moves the restriction member from the restriction position to the non-restriction position.