Title:
FIRE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/189128
Kind Code:
A1
Abstract:
A fire detection device 1A comprises: a heat sensing unit 110A having a part received in an interior of an outer cover 20A and another part provided so as to be exposed to an outside of the fire detection device 1A through an insertion hole 120A formed in a ceiling surface portion 22A; and a guard unit 130A provided in the ceiling surface unit 22A so as to cover the other part of the heat sensing unit 110A and a circumference of the insertion hole 120A and having a plurality of ribs. A material of a first-guard-side rib 131A of the plurality of ribs is made different from a material of another part of the ribs, and a shape of the first-guard-side rib 131A of the plurality of ribs is made different from a shape of the other part of the ribs.
Inventors:
FUJIWARA YASUHARU (JP)
SAEKI ISAO (JP)
TAKANO HIDEKI (JP)
SAEKI ISAO (JP)
TAKANO HIDEKI (JP)
Application Number:
PCT/JP2019/012780
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
HOCHIKI CO (JP)
International Classes:
G08B17/10; G01V8/10; G08B17/06
Foreign References:
| JP2014086013A | 2014-05-12 | |||
| JP2015069484A | 2015-04-13 | |||
| JPH0916869A | 1997-01-17 | |||
| JP2001266265A | 2001-09-28 | |||
| JP2014199632A | 2014-10-23 | |||
| JP2011154544A | 2011-08-11 | |||
| JPH08287374A | 1996-11-01 | |||
| JP2018062681A | 2018-04-19 | |||
| JP2018162772A | 2018-10-18 | |||
| JP2018173389A | 2018-11-08 | |||
| JP2012198757A | 2012-10-18 | |||
| JP2014199632A | 2014-10-23 | |||
| JPH0916869A | 1997-01-17 |
Other References:
See also references of EP 3779908A4
Attorney, Agent or Firm:
SAITO Tatsuya (JP)
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