JPS6450330A - Switch - Google Patents
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- Publication number
- JPS6450330A JPS6450330A JP20770787A JP20770787A JPS6450330A JP S6450330 A JPS6450330 A JP S6450330A JP 20770787 A JP20770787 A JP 20770787A JP 20770787 A JP20770787 A JP 20770787A JP S6450330 A JPS6450330 A JP S6450330A
- Authority
- JP
- Japan
- Prior art keywords
- reset
- signal
- flop
- flip
- failure
- 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.)
- Granted
Links
Landscapes
- Keying Circuit Devices (AREA)
Abstract
PURPOSE:To prevent machines and devices from malfunctioning by reducing a reset load applied on an action body side between reset timings of two switches, outputting a reset failure signal when a reset time exceed a specified value, and issuing a warning. CONSTITUTION:Closedown of an on-off signal S2 is delayed and, from a timer circuit 105 which is caused to start by a closedown detection signal S5 from a 1st input circuit 103, a time-up signal S7 (a reset failure signal) is outputted respectively to a 1st D flip-flop 106a and a 3rd D flip-flop 106c. The output of the 3rd D flip-flop 106c becomes of a high level which is outputted from a failure prediction circuit 106 as a failure prediction signal S13 while other LED (warning means) 40 is lit. A stop or delay in the process of a reset action of an action body is securely caused by the reduction in the reset load of a tapered surface at a flat part of a rotary rod.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20770787A JPH0797461B2 (en) | 1987-08-20 | 1987-08-20 | Switch |
US07/228,063 US4992777A (en) | 1987-08-10 | 1988-08-04 | Switch device with a trouble detecting and indicating function |
DE3827161A DE3827161A1 (en) | 1987-08-10 | 1988-08-10 | SWITCH DEVICE |
US07/574,083 US5015996A (en) | 1987-08-10 | 1990-08-29 | Switch device with a trouble detecting and indicating function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20770787A JPH0797461B2 (en) | 1987-08-20 | 1987-08-20 | Switch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6450330A true JPS6450330A (en) | 1989-02-27 |
JPH0797461B2 JPH0797461B2 (en) | 1995-10-18 |
Family
ID=16544232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20770787A Expired - Fee Related JPH0797461B2 (en) | 1987-08-10 | 1987-08-20 | Switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0797461B2 (en) |
-
1987
- 1987-08-20 JP JP20770787A patent/JPH0797461B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0797461B2 (en) | 1995-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |