(19)
(11) EP 1 146 492 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.10.2001 Bulletin 2001/43

(43) Date of publication A2:
17.10.2001 Bulletin 2001/42

(21) Application number: 01302017.7

(22) Date of filing: 06.03.2001
(51) International Patent Classification (IPC)7: G08B 17/107, G08B 29/18
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 17.03.2000 JP 2000076718

(71) Applicant: Nittan Company, Limited
Tokyo 151-8535 (JP)

(72) Inventors:
  • Sakurai, Kazuyoshi c/o Nittan Company Limited
    Shibuya-ku, Tokyo 151-8535 (JP)
  • Hamada, Ichiro c/o Nittan Company Limited
    Shibuya-ku, Tokyo 151-8535 (JP)
  • Oya, Yasunori c/o Nittan Company Limited
    Shibuya-ku, Tokyo 151-8535 (JP)

(74) Representative: Ajello, Michael John 
Urquhart-Dykes & Lord Greg's Buildings 1 Booth Street
Manchester M2 4DU
Manchester M2 4DU (GB)

   


(54) Multi-sensor


(57) A multi-sensor comprises: a smoke chamber for sensing smoke by detecting a scattered light with a light detecting portion, the scattered light being generated by the smoke which enters the smoke chamber to scatter a light emitted from a light emitting portion; a heat sensing element for sensing heat, which is provided above the smoke chamber; and an insert portion which constitutes a wall body having a hole for inserting a wire of the heat sensing element; wherein the wall body is approximately consecutive from an upper surface of an inside of the smoke chamber to a lower surface of an inside of the smoke chamber, and the hole penetrates through the upper surface to the lower surface, to an outside of the smoke chamber.






Search report