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Patent Searching and Data


Title:
IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2011048079
Kind Code:
A
Abstract:

To solve a problem that operation becomes unstable when a shutter is left in a non-operation state for a long time.

A shutter device includes: a driving member 3 that allows a shutter blade to travel from a traveling start position by energizing force received from an elastic member 18; a locking member 4 that moves between a locking position for locking and holding the driving member at the traveling start position and a locking release position for releasing locking of the driving member; a locking release member 7 that drives the locking member from the locking position to the locking release position; charge members 12, 14 and 16 that restore the driving member to the traveling start position while charging the elastic member after the shutter blade travels; and a control means 39 that operates the locking release member to move the locking member from the locking position in such a state that the driving member is held at the traveling start position by the charge member.


Inventors:
KARASAWA AKIRA
Application Number:
JP2009195641A
Publication Date:
March 10, 2011
Filing Date:
August 26, 2009
Export Citation:
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Assignee:
CANON KK
International Classes:
G03B9/36
Domestic Patent References:
JP2007183489A2007-07-19
JP2009175448A2009-08-06
JP2000147595A2000-05-26
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto