JPH0195049U

JPH0195049U -

Info

Publication number: JPH0195049U
Application number: JP19152987U
Authority: JP
Priority date: 1987-12-17
Filing date: 1987-12-17
Publication date: 1989-06-22

Description

[Brief explanation of the drawing]

第１図ないし第４図はこの考案による回路遮断
器の過電流引外し装置の一実施例を示す図で、第
１図は正面図、第２図は第１図の要部変形前の拡
大図、第３図は第１図の要部変形後の拡大図、第
４図は要部分解斜視図、第５図は従来の回路遮断
器の過電流引外し装置の一例を示す回路遮断器の
縦断面図である。２……下側ケース、２ａ……底板、２ｂ，２ｃ
……隔壁、２ｂ１，２ｃ１……鳩尾状溝、１１…
…継鉄、１１ａ……水平側脚片、１１ｂ，１１ｃ
……突部、１１ｄ……スリツト、２０……過電流
引外し装置。 Figures 1 to 4 are diagrams showing an embodiment of the overcurrent tripping device for a circuit breaker according to this invention. Figure 1 is a front view, and Figure 2 is an enlarged view of the main part of Figure 1 before deformation. Fig. 3 is an enlarged view of the main part of Fig. 1 after modification, Fig. 4 is an exploded perspective view of the main part, and Fig. 5 is a circuit breaker showing an example of an overcurrent tripping device of a conventional circuit breaker. FIG. 2...Lower case, 2a...Bottom plate, 2b, 2c
... Bulkhead, 2b1, 2c1 ... Dovetail groove, 11...
...Yoke, 11a...Horizontal leg piece, 11b, 11c
...Protrusion, 11d...Slit, 20...Overcurrent tripping device.

Claims

[Scope of utility model registration request]

An electromagnetic overcurrent tripping device is fixed to a lower case of an insulating case that is divided into upper and lower parts and partitioned by partition walls for each pole, and is formed on both side partition walls of each pole of the lower case and facing each other. A dovetail groove is formed by inserting a protrusion having a slit formed on both sides of the horizontal leg piece of the yoke of the overcurrent tripping device into the dovetail groove extending perpendicularly to the bottom plate from the edge of the opening, and then widening the slit to form the dovetail groove. An overcurrent tripping device for a circuit breaker, characterized in that it is locked to an inner wall.