JPS6185954U - - Google Patents
Info
- Publication number
- JPS6185954U JPS6185954U JP17225984U JP17225984U JPS6185954U JP S6185954 U JPS6185954 U JP S6185954U JP 17225984 U JP17225984 U JP 17225984U JP 17225984 U JP17225984 U JP 17225984U JP S6185954 U JPS6185954 U JP S6185954U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- handset
- telephones
- automatic switching
- hanging
- 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 4
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案の親子電話の１実施例を示すブ
ロツク回路図、第２図は同上自動切替回路の回路
図、第３図は全体の接続構成図で、第４図、第５
図は従来の親子電話を示す説明図である。
Ｄｉ……ダイヤル回路、Ｔ……送話回路、Ｒ…
…受話回路、ＨＳ１１，ＨＳ１２，ＨＳ１３．Ｈ
Ｓ２１，ＨＳ２２，ＨＳ２３……フツクスイツチ
、Ｃ１，Ｃ２……コンデンサ、ａｏ，ａ１，ａ２
……接点、Ａ……リレー。
Fig. 1 is a block circuit diagram showing one embodiment of the parent-child telephone of the present invention, Fig. 2 is a circuit diagram of the automatic switching circuit as described above, Fig. 3 is an overall connection configuration diagram, and Figs.
The figure is an explanatory diagram showing a conventional parent-child telephone. Di...Dial circuit, T...Talking circuit, R...
... Receiving circuit, HS1 1 , HS1 2 , HS1 3 . H
S2 1 , HS2 2 , HS2 3 ... Hook switch, C1, C2 ... Capacitor, ao, a 1 , a 2
...Contact, A...Relay.
Claims (1)
合において、一方の電話の不使用中のみ他方の電
話の受話器上げ動作で切替り、かつ該受話器の掛
け動作で自動的に復旧する接点を介して両電話機
が接続されることを特徴とする自動切替式親子電
話。 When two telephones are connected in parallel to one line, the switch can be switched by lifting the handset of the other telephone only when one telephone is not in use, and it can be automatically restored by hanging the handset of the other telephone. An automatic switching type parent-child telephone characterized in that both telephones are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17225984U JPS6185954U (en) | 1984-11-12 | 1984-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17225984U JPS6185954U (en) | 1984-11-12 | 1984-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6185954U true JPS6185954U (en) | 1986-06-05 |
Family
ID=30729930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17225984U Pending JPS6185954U (en) | 1984-11-12 | 1984-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6185954U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561828A (en) * | 1979-06-15 | 1981-01-10 | Matsushita Electric Works Ltd | Water tank |
-
1984
- 1984-11-12 JP JP17225984U patent/JPS6185954U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561828A (en) * | 1979-06-15 | 1981-01-10 | Matsushita Electric Works Ltd | Water tank |
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