JPS559180A - Smoke sensor - Google Patents

Smoke sensor

Info

Publication number
JPS559180A
JPS559180A JP8337478A JP8337478A JPS559180A JP S559180 A JPS559180 A JP S559180A JP 8337478 A JP8337478 A JP 8337478A JP 8337478 A JP8337478 A JP 8337478A JP S559180 A JPS559180 A JP S559180A
Authority
JP
Japan
Prior art keywords
space
smoke
spaces
light
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8337478A
Other languages
Japanese (ja)
Inventor
Shuichiro Kishi
Hiroshi Isoya
Masatake Ayusawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8337478A priority Critical patent/JPS559180A/en
Publication of JPS559180A publication Critical patent/JPS559180A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To detect smoke speedily, by linking spaces between light-insulated bodies in a dark box and drawing smoke effectively. CONSTITUTION:Inner wall 5 is provided close to space a which is to draw smoke from the inside of cylindrical upper lid 100, and inner wall 6 is provided close to space a which is to draw smoke from the inside of lower lid 101. Insulating body 7 is provided in the midsection between inner walls 5 and 6 via space a'. Spaces b, b' and c are provided in the center of lower lid 101 between light-insulating bodies 9 and 11. Each space is liked to others.
JP8337478A 1978-07-07 1978-07-07 Smoke sensor Pending JPS559180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8337478A JPS559180A (en) 1978-07-07 1978-07-07 Smoke sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8337478A JPS559180A (en) 1978-07-07 1978-07-07 Smoke sensor

Publications (1)

Publication Number Publication Date
JPS559180A true JPS559180A (en) 1980-01-23

Family

ID=13800637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8337478A Pending JPS559180A (en) 1978-07-07 1978-07-07 Smoke sensor

Country Status (1)

Country Link
JP (1) JPS559180A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014089496A (en) * 2012-10-29 2014-05-15 Yazaki Energy System Corp Thermal fire alarm

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4720178U (en) * 1971-02-20 1972-11-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4720178U (en) * 1971-02-20 1972-11-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014089496A (en) * 2012-10-29 2014-05-15 Yazaki Energy System Corp Thermal fire alarm

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