JPS55141640A - Earthquake sensing and alarming device - Google Patents

Earthquake sensing and alarming device

Info

Publication number
JPS55141640A
JPS55141640A JP4956379A JP4956379A JPS55141640A JP S55141640 A JPS55141640 A JP S55141640A JP 4956379 A JP4956379 A JP 4956379A JP 4956379 A JP4956379 A JP 4956379A JP S55141640 A JPS55141640 A JP S55141640A
Authority
JP
Japan
Prior art keywords
flicker lamp
earthquake
bimetal
filament
battery
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
JP4956379A
Other languages
Japanese (ja)
Inventor
Fumio Nakamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4956379A priority Critical patent/JPS55141640A/en
Publication of JPS55141640A publication Critical patent/JPS55141640A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

PURPOSE: To achieve the reduction of manufacturing cost by using a flicker lamp having a bimetal switching means.
CONSTITUTION: A flicker lamp 10 having a bimetal switching means 27 is connected to a battery B by way of an earthquake sensing switch 7 and manual switch S. As a result of this, when a metal plate 22 touches a metal barrel 21 owing to vibrations such as an earthquake and the vibration sensing switch 7 goes ON, the circuit of the battery B, flicker lamp 10, manual switch S, etc. is closed to energize a coil 18 which in turn attracts the metal plate 22 to maintain the contact state with the metal barrel 21. At the same time, electric current is supplied to the flicker lamp 10 to let a filament 26 emit red heat light, thereby announcing the earthquake sensing. Thereafter, the bimetal means 27 curves by the effect of heating and detaches from the filament 27 to stop its red heat light emission. Hence, the device may be constituted without using any costly semiconductor element.
COPYRIGHT: (C)1980,JPO&Japio
JP4956379A 1979-04-21 1979-04-21 Earthquake sensing and alarming device Pending JPS55141640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4956379A JPS55141640A (en) 1979-04-21 1979-04-21 Earthquake sensing and alarming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4956379A JPS55141640A (en) 1979-04-21 1979-04-21 Earthquake sensing and alarming device

Publications (1)

Publication Number Publication Date
JPS55141640A true JPS55141640A (en) 1980-11-05

Family

ID=12834663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4956379A Pending JPS55141640A (en) 1979-04-21 1979-04-21 Earthquake sensing and alarming device

Country Status (1)

Country Link
JP (1) JPS55141640A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62123524U (en) * 1986-01-28 1987-08-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62123524U (en) * 1986-01-28 1987-08-05

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