JPS5554412A - Multi-stage shock-sensing alarm device - Google Patents
Multi-stage shock-sensing alarm deviceInfo
- Publication number
- JPS5554412A JPS5554412A JP12757678A JP12757678A JPS5554412A JP S5554412 A JPS5554412 A JP S5554412A JP 12757678 A JP12757678 A JP 12757678A JP 12757678 A JP12757678 A JP 12757678A JP S5554412 A JPS5554412 A JP S5554412A
- Authority
- JP
- Japan
- Prior art keywords
- bead
- curved surface
- conductor
- magnitude
- alarm device
- 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
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Emergency Alarm Devices (AREA)
Abstract
PURPOSE: To realize a device which operates an alarm method on sensing magnitude of an earthquake, by placing a bead on a curved surface and then by providing several shock sensors which detect the movement of the bead by a conductor.
CONSTITUTION: Bead 2 is placed which rolls freely on curved surface 1 where its center point to make use of a phenomenon that once curved surface 1 vibrates, bead 2 is displaced from the center point until vibration energy becomes equal to position energy. Curved surface 1 and bead 2 are made of an electric conductor and conductor 3 is arranged which meet bead 2 at the time of fixed displacement, thereby providing electric detection by terminals 4 and 5. Arranging conductor 3 at positions equivalent to magnitudes 3, 4 and 5 makes it possible to detect magnitude of an earthquake. Then, alarm methods are operated corresponding to the magnitude to obtain a multi-level shock alarm device.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12757678A JPS5554412A (en) | 1978-10-16 | 1978-10-16 | Multi-stage shock-sensing alarm device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12757678A JPS5554412A (en) | 1978-10-16 | 1978-10-16 | Multi-stage shock-sensing alarm device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5554412A true JPS5554412A (en) | 1980-04-21 |
Family
ID=14963464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12757678A Pending JPS5554412A (en) | 1978-10-16 | 1978-10-16 | Multi-stage shock-sensing alarm device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5554412A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133195U (en) * | 1984-07-31 | 1986-02-28 | ワ−ルドシステム株式会社 | Anti-earthquake ornament |
JP2013185919A (en) * | 2012-03-07 | 2013-09-19 | Tokai Rika Co Ltd | Contact structure of vibration sensor |
JP2015125134A (en) * | 2013-12-27 | 2015-07-06 | 京セラ株式会社 | Oscillation detection device |
-
1978
- 1978-10-16 JP JP12757678A patent/JPS5554412A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133195U (en) * | 1984-07-31 | 1986-02-28 | ワ−ルドシステム株式会社 | Anti-earthquake ornament |
JP2013185919A (en) * | 2012-03-07 | 2013-09-19 | Tokai Rika Co Ltd | Contact structure of vibration sensor |
JP2015125134A (en) * | 2013-12-27 | 2015-07-06 | 京セラ株式会社 | Oscillation detection device |
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