Title:
SHUTTER DEVICE
Document Type and Number:
Japanese Patent JP2015092236
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce a holding force for holding a state in which an energization force is generated in a drive spring.SOLUTION: A shutter device 1 includes: a front curtain drive lever 223 which moves a front curtain blade 21 to a closed position for covering an opening 11a and also which moves the front curtain blade 21 to an open position for opening the opening 11a; a front curtain charge mechanism 230 which allows a front curtain drive spring 231 to generate an energization force by rotating a front curtain charge lever 232 to a charge direction, and also which rotates the front curtain drive lever 223 to an open direction by rotating the front curtain charge lever 232 to a drive direction by the energization force of the front curtain drive spring 231; a front curtain locking lever 251 which locks the front curtain charge lever 232 in a state of rotating in a charge direction; a front curtin attraction unit 252 which holds the front curtain locking lever 251 by an electromagnetic force in a state where the front curtain locking lever 251 locks the front curtain charge lever 232; and a front curtain energization mechanism which energizes the front curtain locking lever 251 in a release direction.
Inventors:
SHINTANI MASARU
Application Number:
JP2014196840A
Publication Date:
May 14, 2015
Filing Date:
September 26, 2014
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
G03B9/36
Domestic Patent References:
| JPS6250739A | 1987-03-05 | |||
| JPH02213824A | 1990-08-24 | |||
| JPH05150289A | 1993-06-18 |
Foreign References:
| US4236797A | 1980-12-02 |
Attorney, Agent or Firm:
Maeda patent office