JPH0212142U

JPH0212142U -

Info

Publication number: JPH0212142U
Application number: JP8827088U
Authority: JP
Priority date: 1988-07-01
Filing date: 1988-07-01
Publication date: 1990-01-25

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示すオン状態の
一部破断側面図、第２図はトリツプ状態を示す一
部破断側面図、第３図は従来のものを示すオン状
態の側面図、第４図はオフ状態を示す一部破断側
面図、第５図はトリツプ状態を示す側面断面図、
第６図は開閉機構の要部を拡大して示す正面図、
第７図は第６図の斜視図である。図において、１は操作ハンドル、２はリンク、
３は押し板、４は可動接触子、５は可動接点、７
は固定接点、８はローラ、１３は電磁引外し装置
、１３ａは磁性体容器、１３ｂは励磁コイル、１
３ｃは継鉄、１３ｄは可動鉄片、１３０は可動鉄
片１３ｄの一端部、１６はケース、１７は名板、
１８はトリツプ動作チエツク用の孔を示す。なお
、図中同一符号は同一または相当部分を示す。 FIG. 1 is a partially cutaway side view showing an embodiment of this invention in the on state, FIG. 2 is a partially cutaway side view showing the tripped state, and FIG. 3 is a side view showing the conventional device in the on state. FIG. 4 is a partially cutaway side view showing the off state, FIG. 5 is a side sectional view showing the trip state,
Figure 6 is a front view showing an enlarged view of the main parts of the opening/closing mechanism;
FIG. 7 is a perspective view of FIG. 6. In the figure, 1 is the operation handle, 2 is the link,
3 is a push plate, 4 is a movable contact, 5 is a movable contact, 7
1 is a fixed contact, 8 is a roller, 13 is an electromagnetic tripping device, 13a is a magnetic container, 13b is an excitation coil, 1
3c is a yoke, 13d is a movable iron piece, 130 is one end of the movable iron piece 13d, 16 is a case, 17 is a name plate,
Reference numeral 18 indicates a hole for checking trip operation. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] A fixed contact fixed to a case and having a fixed contact at one end, a movable contact having a movable contact opposite to the fixed contact at one end, and penetrating insertion of this movable contact. a push plate having a hole for opening and closing the movable contact from the fixed contact and normally receiving an upward force to separate the movable contact from the fixed contact; and an operating handle that is operated to open and close the movable contact and the fixed contact. ,
A link whose one end is rotatably attached to the inner end of the operating handle, a roller rotatably attached to the other end of the link and which presses the push plate downward, and an overcurrent energized roller. The circuit breaker is equipped with an electromagnetic tripping device that moves the push plate upward when the push plate is pressed upward, and a rating display name plate affixed to the outer surface of the case, wherein the electromagnetic tripping device a magnetic container placed in the container, an excitation coil wound around the container, a yoke attached to the container to form a magnetic circuit, and a center portion rotatably supported by the yoke and one end portion. and a movable iron piece that is sucked into the container, wherein the case is provided with a hole for checking the trip operation, and the hole is used to rotate the movable iron piece to check the trip operation. The circuit breaker is further characterized in that the hole is closed by the name plate.