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Title:
OPENING/CLOSING DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2013040465
Kind Code:
A
Abstract:

To provide an opening/closing detection device which is downsized to improve mounting workability for a window or the like and design quality while actualizing excellent crime prevention.

On a frame body 2, a plurality of movable bodies 3, 4 are movably mounted which can open/close at least part of a space encircled by the frame body 2. Ferromagnetic bodies 15, 16 are provided on the movable bodies 3, 4. At least one of the ferromagnetic bodies 15, 16 is formed of a magnet. On the frame body 2, a magnetic detection element 21 is provided so as to be arranged in a magnetic circuit which is formed by the ferromagnetic bodies 15, 16 on the movable bodies 3, 4 when the movable bodies 3, 4 are closed.


Inventors:
HATTORI ATSUO
Application Number:
JP2011000176718
Publication Date:
February 28, 2013
Filing Date:
August 12, 2011
Export Citation:
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Assignee:
YAMAHA CORP
International Classes:
E05F7/00; G01R33/02; G01R33/06; G08B13/08
Attorney, Agent or Firm:
青山 正和



 
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