JPS6076852U

JPS6076852U - circuit break

Info

Publication number: JPS6076852U
Application number: JP17076983U
Authority: JP
Inventors: 市村　安男
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1983-10-31
Filing date: 1983-10-31
Publication date: 1985-05-29

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の回路しゃ断器の正面断面図、第２図イ
、Ｏ，ハは同動作図、第３図は同要部断面図、第４図は
同要部斜視図、第５図は同要部正面図、第６図は同スト
ッパー軸の斜視図。５：固定接点板、９：可動接点板、１２：電路部、１１
：アーム、１４：アマチュア、１６：引張バネ、３１：
補助ハネ、１７：ストツパー軸。第１ぐハ図Fig. 1 is a front sectional view of the circuit breaker of the present invention, Fig. 2 A, O, and C are the same operation diagrams, Fig. 3 is a sectional view of the main parts, Fig. 4 is a perspective view of the main parts, and Fig. 5 The figure is a front view of the main part, and FIG. 6 is a perspective view of the stopper shaft. 5: Fixed contact plate, 9: Movable contact plate, 12: Electric circuit section, 11
: Arm, 14: Amateur, 16: Tension spring, 31:
Auxiliary fly, 17: Stopper shaft. 1st Guha diagram

Claims

[Scope of utility model registration request]

A fixed contact plate having a fixed contact, a movable contact plate having a movable contact at a free end that separates from the fixed contact and whose base end is supported by a shaft, and a base end of the movable contact plate and an overcurrent operation element. The electrical circuit section that connects the electrical circuit section, and the large current that flows through this electrical circuit section serves as a magnetic Song yoke, supports the base end shaft of the movable contact plate, and is rotated around the base end support shaft using the handle. a magnetic arm, an armature whose base end is pivoted to the free end of the arm and whose free end faces the base end of the arm; and an armature suspended between the free end of the movable contact plate and the free end of the armature. A line connecting both suspension points is a tension spring located on the closing side when on and on the opening side when off with respect to the base end axis of the movable contact plate, and further between the free end of the arm and the base end of the arm. In a circuit breaker comprising an auxiliary spring that applies a rotational force in a direction superimposed on the attraction force of the armature between the two, a stopper shaft that comes into contact with the armature when the armature is in the opening operation position is fixed to the arm. Moreover, the circuit breaker is characterized in that the stopper shaft has a polygonal shaft portion and a head having abutting surfaces at different distances from the shaft center.