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Title:
DOOR OPEN/CLOSED STATE DETECTION UNIT AND DOOR WITH OPEN/CLOSED DETECTION FUNCTION
Document Type and Number:
WIPO Patent Application WO/2018/043333
Kind Code:
A1
Abstract:
A door open/closed state detection unit 1 that is configured so as to be attachable to an outer surface 23 of a plate-shaped door 2 having a latch bolt, detects the open/closed state of the door 2, and comprises: an infrared LED 31 that irradiates light so as to face the locking edge 25 direction of the door 2 when attached to the door 2; a light detection unit 32 comprising a photodiode 321 that detects light from the locking edge 25 direction; and an open/closed detection unit 141 that detects the open/closed state of the door 2, on the basis of whether or not light was detected by the light detection unit 32.

Inventors:
KUSUDA Tatsufumi (10 Nishikyogokutsutsumisoto-cho, Ukyo-ku, Kyoto-sh, Kyoto 54, 〒6150854, JP)
Application Number:
JP2017/030543
Publication Date:
March 08, 2018
Filing Date:
August 25, 2017
Export Citation:
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Assignee:
NIDEC-READ CORPORATION (10 Nishikyogokutsutsumisoto-cho, Ukyo-ku Kyoto-sh, Kyoto 54, 〒6150854, JP)
International Classes:
E05B47/00; E05B49/00; E05F7/00; E06B7/28
Foreign References:
JPH0564991U1993-08-27
JP2006242696A2006-09-14
JPH02274983A1990-11-09
JP2005023688A2005-01-27
JP2007040021A2007-02-15
JP2004076277A2004-03-11
JP5985032B12016-09-06
Attorney, Agent or Firm:
YANAGINO Takao et al. (Noskmard Building, 1-15-1 Miyahara, Yodogawa-ku, Osaka-sh, Osaka 03, 〒5320003, JP)
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