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Patent Searching and Data


Title:
BLADE DRIVING DEVICE AND IMAGING DEVICE
Document Type and Number:
Japanese Patent JP2016114736
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blade driving device and an imaging device capable of achieving excellent power-saving driving.SOLUTION: A blade driving device comprises: a main driving member for driving a block blade which performs opening and closing operations to an opening of a base member; a main driving spring for energizing the main driving member; a sub driving member for rotating with the main driving member, from a driving start position of the block blade to a driving midway position; a sub driving spring for energizing the sub driving member to a direction of energizing the block blade, via the main driving member; a ball bearing for rotatably holding a shaft part which is integrated with the driving member; and a support member for supporting the driving member and the sub driving member, and contacting the ball bearing. The main driving spring and the sub driving spring are twisting coil springs having a coil part disposed on an outer periphery of the shaft part, the sub driving member is rotatably held by the shaft part via a bearing disposed on an outer periphery of the shaft part, and the support member is disposed not to contact an outer ring of the ball bearing and the sub driving spring.SELECTED DRAWING: Figure 9

Inventors:
SAITO YUKI
Application Number:
JP2014252761A
Publication Date:
June 23, 2016
Filing Date:
December 15, 2014
Export Citation:
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Assignee:
CANON DENSHI KK
International Classes:
G03B9/36