JPS55114463A - Electric shock preventing device - Google Patents

Electric shock preventing device

Info

Publication number
JPS55114463A
JPS55114463A JP2096079A JP2096079A JPS55114463A JP S55114463 A JPS55114463 A JP S55114463A JP 2096079 A JP2096079 A JP 2096079A JP 2096079 A JP2096079 A JP 2096079A JP S55114463 A JPS55114463 A JP S55114463A
Authority
JP
Japan
Prior art keywords
electric shock
load voltage
pilot lamp
buzzer
contacts
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
JP2096079A
Other languages
Japanese (ja)
Inventor
Kouka Ko
Nobuyuki Kojima
Ichiro Kameda
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.)
MIYAKI DENKI SEISAKUSHO KK
MIYAKI ELECTRIC Manufacturing
Original Assignee
MIYAKI DENKI SEISAKUSHO KK
MIYAKI ELECTRIC Manufacturing
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 MIYAKI DENKI SEISAKUSHO KK, MIYAKI ELECTRIC Manufacturing filed Critical MIYAKI DENKI SEISAKUSHO KK
Priority to JP2096079A priority Critical patent/JPS55114463A/en
Publication of JPS55114463A publication Critical patent/JPS55114463A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To achieve the prevention of electric shock accident occurrence by parallel providing an electric shock warning buzzer to the pilot lamp which is dimmed out by the main contact opening of the captioned device and is lighted brightly by the secondary no-load voltage of an arc welding machine at the closing and operating this buzzer by the secondary no-load voltage.
CONSTITUTION: At the contacts 10A of the electric shock preventing device 20A close, the voltage of the terminals 7A, 8A of an arc welding machine 1A changes from the secondary no-load voltage to the secondary load voltage and therefore a pilot lamp 6A is held lighted dimly and an electric shock warning buzzer 11A does not sound either. In case the main contacts 3A fail to open owing to a fault in the main contact opening device such as burn of a semiconductor comtrolling and rectifying element 27A when the welding work is ceased, the secondary no-load voltage is applied from the terminals 7A, 8A to the pilot lamp 6a and electric shock warning buzzer 11A through the contacts 10A and therefore the pilot lamp 6A lights up brightly and the buzzer 11A operates to a sounding state.
COPYRIGHT: (C)1980,JPO&Japio
JP2096079A 1979-02-23 1979-02-23 Electric shock preventing device Pending JPS55114463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2096079A JPS55114463A (en) 1979-02-23 1979-02-23 Electric shock preventing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2096079A JPS55114463A (en) 1979-02-23 1979-02-23 Electric shock preventing device

Publications (1)

Publication Number Publication Date
JPS55114463A true JPS55114463A (en) 1980-09-03

Family

ID=12041735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2096079A Pending JPS55114463A (en) 1979-02-23 1979-02-23 Electric shock preventing device

Country Status (1)

Country Link
JP (1) JPS55114463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI496648B (en) * 2012-05-23 2015-08-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI496648B (en) * 2012-05-23 2015-08-21

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