Title:
BLADE DRIVING DEVICE AND SHUTTER APPARATUS, AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2016218195
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide: a blade driving device capable of achieving blade driving in which bound motion is reduced, 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includes: an opening forming member for forming an opening through which light passes; blades that are inserted into or withdrawn from the opening; and blade driving means for driving the blades. The blade driving means moves in a reciprocating manner an engaging movement part having an engaging part engaging with the blades within a predetermined range to allow the blades to be inserted into or withdrawn from the opening. The opening forming member is provided, in a freely moving manner, with a movable member having a contact end with which the engaging part of the engaging movement part moving in the reciprocating manner comes into contact at a returning time, under a contact force from the engaging part. The engaging part has a stopper to stop the movement of the movable member when the engaging part is in contact. The contact end of the movable member that has contacted the stopper and stopped its movement substantially regulates a stopping position of the engaging movement part at the returning time.SELECTED DRAWING: Figure 1
Inventors:
CHAEN TATSUYA
Application Number:
JP2015101472A
Publication Date:
December 22, 2016
Filing Date:
May 19, 2015
Export Citation:
Assignee:
CANON DENSHI KK
International Classes:
G03B9/08; G03B9/14
Domestic Patent References:
| JPS62111241A | 1987-05-22 | |||
| JP2007219198A | 2007-08-30 | |||
| JP2007114406A | 2007-05-10 |
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