JPS63182448U

JPS63182448U -

Info

Publication number: JPS63182448U
Application number: JP7509787U
Authority: JP
Priority date: 1987-05-18
Filing date: 1987-05-18
Publication date: 1988-11-24
Anticipated expiration: 2002-05-18
Also published as: JPH0747780Y2; ZA883472B

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すトリツプリ
レー機構の斜視図、第２図はトリツプリレー機構
のオン、オフ状態図、第３図はトリツプリレー機
構のトリツプ瞬時を示す図、第４図はカケガネの
斜視図、第５図はラツチレバーの斜視図、第６図
はトリツプバーの斜視図、第７図は従来のものを
示す正面図、第８図は第７図の線―の断面図
、第９図はオフ状態を示す第８図と同じ図、第１
０図はトリツプ状態を示す第８図と同じ図、第１
１図はオン、オフ時のトリツプリレー機構の拡大
図、第１２図はトリツプ瞬時のトリツプリレー機
構の拡大図である。図において、３は固定接点、４は自動引きはず
し装置、６は可動接点、７は可動接触子、２０は
開閉操作機構、２０ａはクレドル、２４Ａ，２６
Ａ，２８Ａは回転中心軸、２３Ａはカケガネ、２
５Ａはラツチレバー、２７Ａはトリツプバー、３
１はトリツプ部材である。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 perspective view of a trip relay mechanism showing an embodiment of this invention, Fig. 2 is a diagram showing the ON and OFF states of the trip relay mechanism, Fig. 3 is a diagram showing the trip instant of the trip relay mechanism, and Fig. 4 is a diagram of the locking mechanism. Fig. 5 is a perspective view of the latch lever, Fig. 6 is a perspective view of the trip bar, Fig. 7 is a front view showing the conventional one, Fig. 8 is a sectional view taken along the line of Fig. 7, Fig. 9 is the same figure as Fig. 8 showing the off state;
Figure 0 is the same figure as Figure 8 showing the trip state;
FIG. 1 is an enlarged view of the trip relay mechanism during on and off states, and FIG. 12 is an enlarged view of the trip relay mechanism at the instant of a trip. In the figure, 3 is a fixed contact, 4 is an automatic trip device, 6 is a movable contact, 7 is a movable contact, 20 is an opening/closing operation mechanism, 20a is a cradle, 24A, 26
A, 28A is the rotation center axis, 23A is the locking mechanism, 2
5A is the latch lever, 27A is the trip bar, 3
1 is a trip member. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

It has a movable contact having a movable contact that comes into contact with and separates from a fixed contact, an opening/closing operation mechanism that opens and closes this movable contact, and an automatic tripping device that trips the movable contact via a cradle of this opening/closing operation mechanism. The circuit breaker is a circuit breaker, and includes a locking mechanism that engages with the cradle to position the cradle, a latch lever that engages with the locking mechanism and stops the locking mechanism from being rotated by the cradle, and a locking lever that engages with the locking lever. and a trip bar for stopping the latch lever from being rotated by the locking lock, and when the trip bar is rotated by a trip member of the automatic tripping device during tripping, the latch lever is disengaged from the trip bar and released together with the locking lock. The cradle rotates the released locking gun and latch lever to cause the movable contact to trip, and the center of rotation of the trip bar is aligned with both the locking head and the latch lever in the direction of the power load of the circuit breaker. A circuit breaker characterized in that the trip bar is located between the centers of rotation and the trip bar is disposed between the locking mechanism and the latch lever.