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Title:
LOCK/UNLOCK SENSOR FOR WINDOW
Document Type and Number:
Japanese Patent JP2013044217
Kind Code:
A
Abstract:

To provide a lock/unlock sensor for a window which can detect both a lock/unlock state and an open/close state and can be miniaturized.

A lock/unlock sensor for a window includes: a first magnet 41 which is fixed to an operating lever 23 of a crescent lock 2; a body block 1 which is fixed to one side of a part to be locked; and a second magnet 42 which is fixed to the other side of the part to be locked so that the magnet pole direction thereof intersects with that of the first magnet 41. The body block 1 has a magnetic sensor 11 which outputs an electric signal according to a magnetic flux direction and a magnetic flux density. A lock/unlock state is determined using the magnetic flux generated by the first magnet 41, and an open/close state is determined using the magnetic flux generated by the second magnet 42. Miniaturization can be performed in comparison with a case where two sets of a magnet and a reed switch are used.


Inventors:
Kajiyama, Satoshi
Shibata, Kiwamu
Kudo, Hiroyuki
Matsuda, Hiroshi
Nishikawa, Naoyuki
Takenouchi, Toshiharu
Application Number:
JP2011000185077
Publication Date:
March 04, 2013
Filing Date:
August 26, 2011
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
E05B65/08; E05B45/06
Domestic Patent References:
JPH06309572A1994-11-04
JP2008274669A2008-11-13
JPH06309572A1994-11-04
JP2008274669A2008-11-13
Attorney, Agent or Firm:
西川 惠清
水尻 勝久
坂口 武
北出 英敏