JPH0335983U - - Google Patents
Info
- Publication number
- JPH0335983U JPH0335983U JP9669489U JP9669489U JPH0335983U JP H0335983 U JPH0335983 U JP H0335983U JP 9669489 U JP9669489 U JP 9669489U JP 9669489 U JP9669489 U JP 9669489U JP H0335983 U JPH0335983 U JP H0335983U
- Authority
- JP
- Japan
- Prior art keywords
- intercom
- photocoupler
- contact
- hook
- elevator
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Description
第１図は本考案の実施例の構成を示す回路図、
第２図は従来のインターホンの電源回路の構成を
示す回路図である。
１……インターホン、２，３……電源線、４…
…蓄電池、５，６……フオトカプラ、７，８……
ＩＣタイマ、９……ブザー。
FIG. 1 is a circuit diagram showing the configuration of an embodiment of the present invention;
FIG. 2 is a circuit diagram showing the configuration of a conventional intercom power supply circuit. 1... Intercom, 2, 3... Power line, 4...
...Storage battery, 5,6...Photocoupler, 7,8...
IC timer, 9...buzzer.
Claims (1)
に介在し、インターホンの送受話器が外れた場合
動作するフオトカプラとそのフオトカプラで起動
し、ある一定時間経過したら閉じる接点を有する
タイマとその接点に接続されたブザーを有するこ
とを特徴とするエレベータ用インターホンフツク
外れ警報装置。 A photocoupler that is interposed in the electric wire that supplies power from the storage battery to the intercom and operates when the intercom handset is disconnected; a timer that has a contact that is activated by the photocoupler and closes after a certain period of time; and a buzzer that is connected to that contact. An elevator intercom hook disconnection warning device, characterized in that the elevator intercom hook is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9669489U JPH0335983U (en) | 1989-08-21 | 1989-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9669489U JPH0335983U (en) | 1989-08-21 | 1989-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0335983U true JPH0335983U (en) | 1991-04-08 |
Family
ID=31645882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9669489U Pending JPH0335983U (en) | 1989-08-21 | 1989-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0335983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012132265A1 (en) * | 2011-03-25 | 2012-10-04 | パナソニック株式会社 | Bioacoustic processing apparatus and bioacoustic processing method |
-
1989
- 1989-08-21 JP JP9669489U patent/JPH0335983U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012132265A1 (en) * | 2011-03-25 | 2012-10-04 | パナソニック株式会社 | Bioacoustic processing apparatus and bioacoustic processing method |