JPH02131238U

JPH02131238U -

Info

Publication number: JPH02131238U
Application number: JP3949289U
Authority: JP
Priority date: 1989-04-03
Filing date: 1989-04-03
Publication date: 1990-10-31
Anticipated expiration: 2004-04-03
Also published as: JPH089883Y2

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案の一実施例を示し、
第１図は瞬時引き外し電流を高く設定した状態に
おける全体の縦断側面図、第２図は同状態におけ
る要部の拡大縦断側面図、第３図は瞬時引き外し
電流を低く設定した状態における第２図相当図、
第４図は第２図中−線に沿う要部の断面図で
ある。そして、第５図及び第６図は従来構成を示
し、第５図は第１図相当図、第６図は第３図相当
図である。図面中、２は操作ハンドル、３は固定接触子、
４は可動接触子、６は開閉機構、８は熱動式引き
外し装置、９は電磁式引き外し装置、１０は導体
、１１はトリツプ杆、１３はバイメタル、１４は
固定鉄心、１５は可動鉄片、１７は調整部材、１
８はカム部、２０はばね部材、２２は調整レバー
、２２ｂは当接部を示す。 1 to 4 show an embodiment of the present invention,
Figure 1 is an overall longitudinal side view with the instantaneous tripping current set high, Figure 2 is an enlarged vertical side view of the main parts in the same state, and Figure 3 is the overall vertical side view with the instantaneous tripping current set low. 2 figure equivalent figure,
FIG. 4 is a sectional view of the main part taken along the line - in FIG. 2. 5 and 6 show conventional configurations, with FIG. 5 being a diagram corresponding to FIG. 1, and FIG. 6 being a diagram corresponding to FIG. 3. In the drawing, 2 is an operating handle, 3 is a fixed contact,
4 is a movable contact, 6 is an opening/closing mechanism, 8 is a thermal trip device, 9 is an electromagnetic trip device, 10 is a conductor, 11 is a trip rod, 13 is a bimetal, 14 is a fixed iron core, and 15 is a movable iron piece. , 17 is an adjustment member, 1
8 is a cam portion, 20 is a spring member, 22 is an adjustment lever, and 22b is a contact portion.

Claims

[Scope of utility model registration request]

In a device equipped with an electromagnetic trip device that operates in response to the current flowing through the main circuit, one end is rotatably supported and the other end is attracted to the fixed iron core when a large current flows through the main circuit. A movable iron piece that performs a detachment operation via a trip rod by rotational displacement, an adjustment member having a cam portion and provided so as to be operable from the outside, and a movable iron piece that is rotatably supported and has the cam on one end side. an adjustment lever that has an abutment part that comes into contact with the adjustment member and is rotationally displaced via the cam part in response to the operation of the adjustment member; and an adjustment lever between the other end of the adjustment lever and the intermediate part of the movable iron piece. a spring member consisting of a tensioned tension spring, and configured such that the direction of action of the spring member is changed by rotational displacement of the adjustment lever while the length of the spring member is held substantially constant. A circuit breaker characterized by: