JPS6031052U

JPS6031052U - Locking device for circuit breakers

Info

Publication number: JPS6031052U
Application number: JP12336583U
Authority: JP
Inventors: 鵜沼　誠
Original assignee: 富士電機株式会社
Priority date: 1983-08-09
Filing date: 1983-08-09
Publication date: 1985-03-02

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図はこの考案の基になった回路しゃ断器の一例を示
す縦断面図、第２図および第３図は第１図の回路しゃ断
器に採用された従来の施錠装置の一例を示す要部図で、
第２図は回路しゃ断器の開離時の施錠状態を示す斜視図
、第３図は回路しゃ断器の閉成時の施錠状態を示す斜視
図、第４図および第５図はこの考案による回路しゃ断器
の施錠装置の一実施例の要部図で、第４図は施錠状態を
示す横断面図、第５図は解錠状態を示す横断面図である
。１：絶縁ケース、１ｂ：相間隔壁、３：固定液　　゛触
子、５：可動接触子、７：過電流引はずし素子、８：開
閉機構、９：操作ハンドル、９ｂ二錠孔、１２ニジリン
ダ錠、１２ｂ：編心カム、１４：案内金具、１５：ばね
、１６：ロックピン。Figure 1 is a vertical cross-sectional view showing an example of a circuit breaker on which this invention is based, and Figures 2 and 3 are schematic diagrams showing an example of a conventional locking device adopted in the circuit breaker of Figure 1. In the diagram,
Fig. 2 is a perspective view showing the circuit breaker in the locked state when it is opened, Fig. 3 is a perspective view showing the locked state when the circuit breaker is closed, and Figs. 4 and 5 are the circuits according to this invention. FIG. 4 is a cross-sectional view showing a locked state, and FIG. 5 is a cross-sectional view showing an unlocked state. 1: Insulating case, 1b: Phase separation wall, 3: Fixed liquid contactor, 5: Movable contact, 7: Overcurrent tripping element, 8: Opening/closing mechanism, 9: Operating handle, 9b double lock hole, 12 Niji cylinder lock , 12b: eccentric cam, 14: guide fitting, 15: spring, 16: lock pin.

Claims

[Scope of utility model registration request]

A fixed contact housed in an insulating case, a movable contact to which an overcurrent trip element is connected in series so as to be able to come into contact with and separate from the contact, and a movable contact that is coupled to the movable contact and engaged with the overcurrent trip element. and an opening/closing mechanism in which the operating handle is removed, the movable contact and the fixed contact being locked when the movable contact and the fixed contact are both closed and opened, respectively. a cylinder lock that is attached to the top plate of the insulating case and located on the side of the operating handle and has an eccentric cam at its tip; and a cylinder lock that is freely guided in the axial direction by the partition wall of the insulating case and has one end that can be secured to the eccentric cam. a lock pin biased by a spring; and a lock pin drilled in a side surface of the operation handle, the other end of the lock pin being able to enter at each position where the handle is in both the closed and opened states of the movable contact. A locking device for a circuit breaker, characterized by comprising a recess.