Title:
SHUTTER AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2019086717
Kind Code:
A
Abstract:
To prevent the generation of a gap between a front curtain and a rear curtain and the occurrence of a large difference in the completion timing of a charge operation, in the charge operation.SOLUTION: A shutter includes first and second driving members which open and close a front curtain blade group and a rear curtain blade group and a charge slider which rotates the first and second driving members, to charge a driving spring. The charge slider includes first and second operation parts. The first driving member includes a first engagement part engaged with the first operation part. The second driving member includes a second engagement part engaged with the second operation part. These operation parts and engagement parts are arranged so that the engagement of the first operation part with the first engagement part by the movement of the charge slider is performed at a timing earlier than the engagement of the second operation part with the second engagement part and so that the rotation amount of the second driving member is larger than that of the first driving member with respect to the movement amount of the charge slider.SELECTED DRAWING: Figure 30
Inventors:
KAWAKUBO NAOKI
SAITO YUKI
KATO KENTARO
ARAI TAKAHIRO
ITO HISAAKI
SAITO YUKI
KATO KENTARO
ARAI TAKAHIRO
ITO HISAAKI
Application Number:
JP2017216540A
Publication Date:
June 06, 2019
Filing Date:
November 09, 2017
Export Citation:
Assignee:
CANON DENSHI KK
International Classes:
G03B9/36
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu