JPS61126555U

JPS61126555U -

Info

Publication number: JPS61126555U
Application number: JP1190185U
Authority: JP
Priority date: 1985-01-28
Filing date: 1985-01-28
Publication date: 1986-08-08
Anticipated expiration: 2000-01-28
Also published as: JPH0735280Y2

Description

[Brief explanation of the drawing]

第１図ないし第５図はそれぞれこの考案の回路
しや断器の一実施例を示し、第１図はそのトリツ
プ状態を示す側断面図、第２図はその接点溶着表
示状態を示す側断面図、第３図はそのＯＦＦ状態
を示す側断面図、第４図はそのＯＮ状態を示す側
断面図、第５図はその要部を示す分解斜視図であ
る。第６図ないし第８図はそれぞれ従来の回路し
や断器を示し、第６図はそのＯＦＦ状態を示す側
断面図、第７図はそのＯＮ状態を示す側断面図、
第８図はその接点溶着状態を示す側断面図である
。図中、１はベース、２は操作ハンドル、４はリ
ンク、５は可動子、５ａ，５ｂはラツチ面、５ｃ
は第２のストツパー、７は係止レバー、１２は可
動接点、１６は固定接点、１７はコイル、２３は
プランジヤ、２６はロツド、３０はバイメタル、
４５は第１のストツパー、５１は切欠き溝である
。なお、図中、同一符号は同一、又は相当部分を
示す。 Figures 1 to 5 each show an embodiment of the circuit breaker of this invention, with Figure 1 being a side sectional view showing its tripped state, and Figure 2 being a side sectional view showing its contact welding display state. 3 is a side sectional view showing the OFF state, FIG. 4 is a side sectional view showing the ON state, and FIG. 5 is an exploded perspective view showing the main parts. 6 to 8 respectively show conventional circuit breakers, FIG. 6 is a side sectional view showing its OFF state, and FIG. 7 is a side sectional view showing its ON state.
FIG. 8 is a side sectional view showing the welded state of the contacts. In the figure, 1 is the base, 2 is the operating handle, 4 is the link, 5 is the mover, 5a, 5b are the latch surfaces, 5c
is a second stopper, 7 is a locking lever, 12 is a movable contact, 16 is a fixed contact, 17 is a coil, 23 is a plunger, 26 is a rod, 30 is a bimetal,
45 is a first stopper, and 51 is a notch groove. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of claims for utility model registration] (1) A casing having an opening and housing an internal mechanism;
An operating handle that protrudes from the opening of the casing and turns the internal mechanism on and off from outside the casing; a link that is rotatably connected at one end to the operating handle and forms a toggle link mechanism together with the operating handle; A movable element that is movably supported and has a movable contact arranged opposite to a fixed contact at one rotating end, and is rotatably attached to this movable element, and the movable element and the link are normally connected. A locking lever locks the link so that when an overcurrent exceeding a predetermined value flows, the locking lever is rotated to disconnect the link and the movable element, and the movable contact is connected to the fixed contact. In a circuit switch or breaker equipped with an overcurrent tripping device that opens the circuit, the operating handle is provided in the housing, and when an overcurrent tripping is performed by the overcurrent tripping device, the operating handle a first stopper that prevents movement of the link so that it is in an intermediate position between ON and OFF, and a notch groove that is continuous with and together with a latching surface of the movable element that latches the link. If an overcurrent trip occurs or an OFF operation is performed using the operation handle when both the contacts are welded, the operation handle prevents the movement of the link and the operation handle prevents the overcurrent trip from occurring. O
A circuit breaker characterized in that a second stopper is provided at an intermediate position between N and OFF. (2) The circuit breaker according to claim 1 of the utility model registration, characterized in that the display positions of the operating handle are provided in the order of ON, contact welding, trip, and OFF. (3) The circuit breaker according to claim 1 of the utility model registration, characterized in that the display positions of the operating handle are provided in the order of ON, trip, contact welding, and OFF.