JPS58193434U

JPS58193434U - Gas cutter

Info

Publication number: JPS58193434U
Application number: JP8851682U
Authority: JP
Inventors: 牛島　清
Original assignee: 日新電機株式会社
Priority date: 1982-06-14
Filing date: 1982-06-14
Publication date: 1983-12-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す縦断面図、第２図は本
考案で用いる研磨手段の取付状態の一例を示す要部の斜
視図、第３図は同研磨手段の一例を示す平面図、第４図
は同研磨手段を付勢する共ネの一例を示す平面図、第５
図Ａ及びＢはそれぞれしゃ断最終位置の寸前及びしゃ断
最終位置における可動コンタクトと研磨手段との位置関
係を示す断面図である。１・・・容器、２・・・上部導体、３・・・下部導体、
４・・・　“消弧室、５・・・排気室、７・・・固定コ
ンタクト、１１・・・支持筒、１２・・・可動コンタク
ト、１４・・・溝、１６・・・研磨手段。Fig. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, Fig. 2 is a perspective view of essential parts showing an example of the mounting state of the polishing means used in the present invention, and Fig. 3 is an example of the same polishing means. A plan view, FIG.
Figures A and B are cross-sectional views showing the positional relationship between the movable contact and the polishing means just before the final cutoff position and at the final cutoff position, respectively. 1... Container, 2... Upper conductor, 3... Lower conductor,
4... Arc extinguishing chamber, 5... Exhaust chamber, 7... Fixed contact, 11... Support tube, 12... Movable contact, 14... Groove, 16... Polishing means.

Claims

[Scope of utility model registration request]

An arc current is applied when an arc is generated between the fixed contact, the tubular movable contact that is provided to slidably penetrate the support cylinder and move toward and away from the fixed contact, and both the fixed and movable contact points. a drive coil, and extinguishes the arc by causing magnetic flux generated by the drive coil to act on the arc to rotate the arc at high speed; A groove extending in the circumferential direction is provided in the groove, and a polishing means is disposed in the groove for contacting the outer circumferential surface of the movable contact with a predetermined pressure, and the polishing means is provided with a groove extending from the tip of the movable contact at the cut-off end position. A gas breaker is also provided at a position on the fixed contact side.