Title:
GAS ALARMING DEVICE
Document Type and Number:
Japanese Patent JP3802739
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To avoid varying of voltage to be applied to a gas detection means in an alarming state.
SOLUTION: A gas alarming device is provided with a gas detection means 2 for detecting the density of gas to be tested by feeding power from a power source, a judging means 4a1 for judging the alarming state based on the density detected by the means 2 and a control means 4a2 for controlling feeding of power to an alarming part 7 for alarming with an alarming sound and display. When the means 4a1 judges the occurrence of the alarming state, the means 4a2 feeds power to the part 7 for alarming. The part 7 has a display means 7a for showing the energizing state of a device in ordinary time by lighting and an alarming means 7b generating the alarming sound in the alarming state. The means 4a2 controls feeding of power to the means 7a so that the means 7a may repeat turning on and off of light when the means 4a1 judges forming of the alarming state, and the means 4a2 controls power feeding to the means 7b when power is not fed to the means 7a.
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Inventors:
Kazuo Toyota
Naofumi Ozawa
Naofumi Ozawa
Application Number:
JP2000262323A
Publication Date:
July 26, 2006
Filing Date:
August 31, 2000
Export Citation:
Assignee:
Yazaki Corporation
International Classes:
G01N27/16; G08B21/16; G08B21/00; G08B23/00; (IPC1-7): G08B21/16; G01N27/16; G08B21/00; G08B23/00
Domestic Patent References:
| JP6223286A | ||||
| JP58018797A | ||||
| JP5274571A | ||||
| JP58138195U | ||||
| JP62190599A |
Attorney, Agent or Firm:
Hideo Takino
Hiroshi Ochi
Sadao Matsumura
Isamu Kakiuchi
Hiroshi Ochi
Sadao Matsumura
Isamu Kakiuchi