JPH0342478U

JPH0342478U -

Info

Publication number: JPH0342478U
Application number: JP10317489U
Authority: JP
Priority date: 1989-09-04
Filing date: 1989-09-04
Publication date: 1991-04-22
Anticipated expiration: 2004-09-04
Also published as: JPH075009Y2

Description

[Brief explanation of drawings]

第１図は本考案にる正常な簡易回路結線図、第
２図は本考案による回路しや断器の蓋をとつた場
合の正面図、第３図、第４図、第５図本考案によ
る解放機構２５のフツク板２５ａ，２５ｂによる
半月トリツプ軸１４との異る関係を示す正面図、
第６図は２枚のフツク板２５ａ，２５ｂをずらし
た状態を示す正面図、第７図、第８図は押釦１１
の正面図、側面図である。図で３……過電流検出用電磁部、ａ……主回路
開閉接点部、４……同固定接点、５……同可動接
点、ｂ……警報接点部、１０，１１……押釦、１
３……可動鉄片、１４……半月トリツプ、１６…
…可動片、２１……延長部、２４……トリツプレ
バー、２５……開放機構、２５ａ，２５ｂ……フ
ツク板、２５ｃ，２５ｄ……段状の爪、２６ａ，
２６ｂ……トリツプローラ、２７……フツク板の
軸、２８……延長部２１の傾斜部、１７，３３，
３３′……ばね。 Figure 1 is a normal simplified circuit connection diagram according to the present invention, Figure 2 is a front view of the circuit breaker according to the present invention with the lid removed, Figures 3, 4, and 5 are according to the present invention. Front views showing different relationships between the hook plates 25a and 25b of the release mechanism 25 and the half-moon trip shaft 14,
FIG. 6 is a front view showing the state in which the two hook plates 25a and 25b are shifted, and FIGS. 7 and 8 are the push button 11.
They are a front view and a side view. In the diagram, 3... Electromagnetic part for overcurrent detection, a... Main circuit opening/closing contact part, 4... Fixed contact, 5... Movable contact, b... Alarm contact part, 10, 11... Push button, 1
3...Movable iron piece, 14...Half-moon trip, 16...
...Movable piece, 21...Extension part, 24...Trip lever, 25...Opening mechanism, 25a, 25b...Hook plate, 25c, 25d...Stepped claw, 26a,
26b... Trip roller, 27... Axis of hook plate, 28... Inclined portion of extension portion 21, 17, 33,
33'...Spring.

Claims

[Scope of utility model registration request]

Main circuit switching contact part a inserted between power supply and load
In addition, the trip lever 24 is connected to the detection electromagnetic section 3 and the movable iron piece 13 that is attracted to the magnetic pole 22 when a second stage overcurrent flows through the electromagnetic section 3.
A signal circuit circuit breaker comprising a release mechanism 25 for tripping the main circuit switching contact part a and releasing the main circuit opening/closing contact part a, the circuit breaker being integrally movable with the main circuit switching contact part a. The piece 16 is rotatable around a shaft 20 whose base is provided in an elliptical hole 16', and a contact spring 17 applies contact pressure to the shield breaking contact 5 via the movable piece 16, while a shaft 18 is used to press the button. 11 extension 21
and a blade spring 33 that interlocks the movable piece 16.
The opening mechanism 25 is connected by a shaft 27 and overlapped with each other, and has a stepped claw 25c on a part of its periphery.
trip rollers 26a, 26b provided at one ends of two hook plates 25a, 25b each having a diameter of approximately 1/4 circumference and sliding along the inclined portion 28 of the extension portion 21, and the trip lever 24; Since the claws 25c and 25d of the hook plates 25a and 25b are provided so that the integral half-moon-shaped trip shaft 14 is caught and the rotation thereof is locked, the hook plate 25b is provided in the first stage where an instantaneous overcurrent flows.
The claw 25d of the hook plate 25a comes off, but the claw 25c of the hook plate 25a
This is a circuit breaker for a signal circuit, characterized in that a half-moon-shaped trip shaft 14 hooks the main circuit opening/closing contact part a so that it does not open.