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Title:
FOCAL PLANE SHUTTER AND CAMERA
Document Type and Number:
Japanese Patent JP2017045020
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a focal plane shutter that can suppress dust generating due to an action.SOLUTION: A focal plane shutter is employed that comprises: a shutter base plate that includes an image frame for exposure; a plurality of arms; a plurality of shutter blades that is each attached to one end of the plurality of arms, and moves accompanied by a movement of the plurality of arms to thereby switch a state covering the image frame and a state opening the image frame; an armature that is coupled to the plurality of arms and causes the plurality of arms to move accompanied by a movement of the armature; and a yoke that is fixed to the shutter base plate, and is magnetized by energization to absorbedly hold the armature, in which the plurality of arms and the plurality of shutter blades are coupled by a blade dowel having at least a head part subjected to lubrication processing.SELECTED DRAWING: Figure 1

Inventors:
KAWAKAMI KENTA
OGAWA TAKAO
Application Number:
JP2015169866A
Publication Date:
March 02, 2017
Filing Date:
August 28, 2015
Export Citation:
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Assignee:
NIDEC COPAL CORP
International Classes:
G03B9/36
Domestic Patent References:
JP2008152146A2008-07-03
JP2015121599A2015-07-02
JP2009151273A2009-07-09
JP2014043532A2014-03-13
JP2003322897A2003-11-14
JP2006235352A2006-09-07
Attorney, Agent or Firm:
Takafumi Ishii