JPS6077204U

JPS6077204U - Safety shutter device for drawer type and disconnector

Info

Publication number: JPS6077204U
Application number: JP1983167711U
Authority: JP
Inventors: 尊義石川
Original assignee: 三菱電機株式会社
Priority date: 1983-10-28
Filing date: 1983-10-28
Publication date: 1985-05-30
Also published as: JPS6341775Y2

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図はこの考案の一実施例を示す装置全体の概略斜視
図（ただ七シャッターと相間バリヤとは一部のみ示しで
ある）、第２図〜第４図はシャッター装置の三つの異な
る動作位置を示す横断平面図、第５図はシャッタ一部分
の要部拡大図、第６図〜第７図はロック板の二つの異な
る動作位置を示す斜視図である。なお図中間−附号は同
一または相当部分を示す。図中１は引出枠、２はしゃ断器、３は主回路導体、６は
駆動板、８は引きばね、１０はシャッター、１１はロッ
ク板、１２は長孔、１２ａは切欠き段部、１４はロック
ピン、１゛５はばねである。Fig. 1 is a schematic perspective view of the entire device showing one embodiment of this invention (only a portion of the shutter and interphase barrier are shown), and Figs. 2 to 4 show three different operations of the shutter device. FIG. 5 is an enlarged view of a main part of a portion of the shutter, and FIGS. 6 to 7 are perspective views showing two different operating positions of the lock plate. Note that the numbers in the middle of the figure indicate the same or equivalent parts. In the figure, 1 is a drawer frame, 2 is a breaker, 3 is a main circuit conductor, 6 is a drive plate, 8 is a tension spring, 10 is a shutter, 11 is a lock plate, 12 is a long hole, 12a is a notch step, 14 is a lock pin, and 1.5 is a spring.

Claims

[Scope of utility model registration request]

In a safety shutter device for a draw-out type breaker, which has a shutter that covers the main circuit conductor in the draw-out frame of the circuit breaker and opens and closes in response to the insertion and removal of the breaker, the draw-out frame has a sliding door in the direction of insertion and removal of the breaker. a drive plate movably mounted to open and close the shutter in response to insertion and removal of the breaker;
A tension spring that biases the drive plate in the direction in which the breaker is pulled out; a lock plate that has a long hole extending in the direction in which the breaker is inserted and is swingably attached to the drive plate; and a lock plate that is fixed to the draw-out frame. A lock pin that engages with the elongated hole of the lock plate, a notch step provided in the elongated hole of the lock plate that engages with the lock pin when the drive plate comes to the open position of the shutter, and this notch. A spring for urging the lock plate so that the lock pin does not engage with the stepped portion is provided, and when the drive plate comes to the open position of the shutter, an external force is applied to the lock plate to resist the spring. 1. A safety shutter device for a pull-out breaker, characterized in that the lock pin is engaged with a stepped notch.