Title:
FOCAL PLANE SHUTTER AND CAMERA
Document Type and Number:
Japanese Patent JP2015105997
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce shock and vibration at the time of stop of a driving member while achieving simplification of a structure, miniaturization of a device, and so on in a focal plane shutter.SOLUTION: A focal plane shutter is configured to include: main driving members 51 and 61 which are urged in such a direction as to cause blade members 30 and 40 to perform a shutter operation and are set in set positions against urging force; slave driving members 52 and 62 which are connected to the blade members and are urged so as to follow up the main driving members set in the set positions and are pushed by the main driving members to move during the shutter operation; main buffer members 81 and 82 with which the main driving members are first brought into contact when the shutter operation is completed; and slave buffer members 91 and 92 with which the slave driving members are brought into contact after the main driving members are brought into contact with the main buffer members. Detention mechanisms 100 and 110 which detain the slave driving members to restrict reverse movement after contact with the slave buffer members of the slave driving members are provided, so that shock and vibration are effectively reduced.
Inventors:
NISHIMURA KOHEI
Application Number:
JP2013247119A
Publication Date:
June 08, 2015
Filing Date:
November 29, 2013
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
G03B9/36
Domestic Patent References:
| JP2012177765A | 2012-09-13 | |||
| JP2013097032A | 2013-05-20 | |||
| JPS58196527A | 1983-11-16 | |||
| JPH02123920U | 1990-10-12 |
Attorney, Agent or Firm:
Takatoshi Yamamoto
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