Title:
羽根駆動装置及びフォーカルプレーンシャッタ装置並びに撮像装置
Document Type and Number:
Japanese Patent JP6871693
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a buffer member which causes no obstruction in blade operation.SOLUTION: A blade drive unit includes: an opening formation member for forming an opening; a cover member for forming a blade chamber between the opening formation member and the cover member; a blade group for opening and closing the opening; two arms for rotatably connecting the blade group and supporting it; a drive member that penetrates through hole parts provided in the cover member to connect to the arms and that rotates in parallel with an opening surface of the opening to make the blade group open and close; and a buffer member that is mounted on an inner wall that is an extension of a rotational locus of the drive member and that is formed by an elastic member. The buffer member has at least one overhang part and one recess. The overhang part comes into contact with a cover member side recess provided in the cover member. The recess comes into contact with a cover member side overhang part provided in the cover member.SELECTED DRAWING: Figure 7
Inventors:
Koichi Shimada
Application Number:
JP2016141912A
Publication Date:
May 12, 2021
Filing Date:
July 19, 2016
Export Citation:
Assignee:
Canon Electronics Inc.
International Classes:
G03B9/36
Domestic Patent References:
| JP2008197393A | ||||
| JP59101234U | ||||
| JP10161181A | ||||
| JP2014006434A | ||||
| JP2011048207A |
Attorney, Agent or Firm:
Patent Business Corporation Otsuka International Patent Office
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu