JPS6326947U

JPS6326947U -

Info

Publication number: JPS6326947U
Application number: JP12017686U
Authority: JP
Priority date: 1986-08-04
Filing date: 1986-08-04
Publication date: 1988-02-22

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すもので開閉
機構のない極のオフ状態を示す要部拡大図、第２
図は第１図の主要部の分解斜視図、第３図は従来
装置を示す正面図、第４図は第３図の線―の
拡大断面図、第５図はオン状態を示す第４図の要
部拡大図、第６図はオフ状態を示す第５図と同じ
図、第７図はトリツプ状態を示す第５図と同じ図
、第８図は反発状態を示す第５図と同じ図、第９
図は第３図の線―の拡大断面図、第１０図は
オフ状態を示す第９図の要部拡大図である。図において、１はしや断器ケース、１ａはベー
ス、１ｂはカバー、２は開閉機構極、３は開閉機
構のない極、８は自動引きはずし装置、１１は可
動子、１４はコンタクトアーム、１４ａは第１の
コンタクトアーム、１４ｂは第２のコンタクトア
ーム、１５は第１のピン、１６は支軸、１７はク
ロスバー、１８はガイド孔、１９は長孔、２０は
第２のピン、２１はばね、２３は開閉機構、３０
はブラケツト、３４はストツパーである。なお、
各図中同一符号は同一または相当部分を示す。 Figure 1 shows one embodiment of this invention, and is an enlarged view of the main part showing the OFF state of the pole without an opening/closing mechanism.
The figures are an exploded perspective view of the main parts of Fig. 1, Fig. 3 is a front view showing the conventional device, Fig. 4 is an enlarged sectional view along the line - in Fig. 3, and Fig. 5 is Fig. 4 showing the on state. Fig. 6 is the same as Fig. 5 showing the off state, Fig. 7 is the same as Fig. 5 showing the trip state, and Fig. 8 is the same as Fig. 5 showing the repulsion state. , No. 9
The figure is an enlarged sectional view taken along the line - in FIG. 3, and FIG. 10 is an enlarged view of the main part of FIG. 9 showing the off state. In the figure, 1 is a branch or disconnection case, 1a is a base, 1b is a cover, 2 is an opening/closing mechanism pole, 3 is a pole without an opening/closing mechanism, 8 is an automatic tripping device, 11 is a mover, 14 is a contact arm, 14a is a first contact arm, 14b is a second contact arm, 15 is a first pin, 16 is a support shaft, 17 is a cross bar, 18 is a guide hole, 19 is a long hole, 20 is a second pin, 21 is a spring, 23 is an opening/closing mechanism, 30
is a bracket, and 34 is a stopper. In addition,
The same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) A switching mechanism pole with an opening/closing mechanism and a pole without an opening/closing mechanism are provided, and regardless of the opening/closing operation of an automatic tripping device, the electromagnetic repulsion caused by the application of a large current A multi-pole circuit breaker configured to limit current by separating movable elements, wherein a contact arm holding the movable element in each pole is rotatably supported by a first contact arm and a second contact arm. 2
and a contact arm that is connected to the opening/closing mechanism directly in the opening/closing mechanism pole or indirectly via a crossbar in the pole without the opening/closing mechanism. a guide hole extending in the direction; a long hole provided in the second contact arm in which the mover is supported by the first pin and extending in a direction intersecting the guide hole; a second pin that straddles and engages with the second pin, and a spring that biases the second pin, and
In a multi-pole circuit disconnector where each pole is constructed of a base and a cover and is installed side by side in a disconnector case,
a stopper for stopping the second contact arm in the off position by coming into contact with the base;
A multi-pole circuit breaker, characterized in that it is provided at least on the second contact arm of a pole without the opening/closing mechanism. (2) The multi-pole circuit breaker according to claim 1, wherein the second contact arm is extended beyond the support shaft, and a stopper is formed in this extension.