JPS63184541U

JPS63184541U -

Info

Publication number: JPS63184541U
Application number: JP7489987U
Authority: JP
Priority date: 1987-05-19
Filing date: 1987-05-19
Publication date: 1988-11-28
Anticipated expiration: 2002-05-19
Also published as: JPH0614388Y2

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示すラツチレバ
ーの斜視図、第２図は従来のものを示す正面図、
第３図は第２図の線―の断面図、第４図はオ
フ状態を示す第３図と同じ図、第５図はトリツプ
状態を示す第３図と同じ図、第６図はトリツプリ
レー機構の斜視図、第７図はトリツプリレー機構
のオン、オフ状態図、第８図はトリツプリレー機
構のトリツプ瞬時を示す図、第９図はカケガネの
斜視図、第１０図はラツチレバーの斜視図、第１
１図は第１０図を反対側からみた斜視図、第１２
図はトリツプバーの斜視図である。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、２５はカケガ
ネ、２６Ａはラツチレバー、２６ａは係合側板部
、２６ｂは当接側板部、２６ｃ，３６は長孔、２
７はローラ、２７ａ，２７ｂは両側軸、３０はト
リツプバー、３２はストツパー、３３はトリツプ
部材、３７は大孔である。なお、各図中同一符号
は同一または相当部分を示す。 Fig. 1 is a perspective view of a latch lever showing an embodiment of this invention, Fig. 2 is a front view showing a conventional latch lever,
Figure 3 is a sectional view taken along the line in Figure 2, Figure 4 is the same diagram as Figure 3 showing the off state, Figure 5 is the same diagram as Figure 3 showing the trip state, Figure 6 is the trip relay mechanism. 7 is a diagram showing the on/off state of the trip relay mechanism, FIG. 8 is a diagram showing the trip instant of the trip relay mechanism, FIG. 9 is a perspective view of the locking mechanism, FIG. 10 is a perspective view of the latch lever, and FIG.
Figure 1 is a perspective view of Figure 10 seen from the opposite side, Figure 12
The figure is a perspective view of the trip bar. In the figure, 3 is a fixed contact, 4 is an automatic tripping device, 6 is a movable contact, 7 is a movable contact, 20 is an opening/closing operation mechanism, 20a is a cradle, 25 is a locking mechanism, 26A is a latch lever, and 26a is an engagement side plate. , 26b is the contact side plate portion, 26c and 36 are long holes, 2
7 is a roller, 27a and 27b are shafts on both sides, 30 is a trip bar, 32 is a stopper, 33 is a trip member, and 37 is a large hole. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) A movable contact having a movable contact that is brought into contact with and separated from a fixed contact, an opening/closing operation mechanism that opens and closes this movable contact, and a cradle of this opening/closing operation mechanism that connects the movable contact to the movable contact. A circuit breaker having an automatic tripping device for tripping a child, a locking mechanism that engages with the cradle to position the cradle, and a locking mechanism that engages with the cradle by a roller so that the locking mechanism is rotated by the cradle. a trip bar that engages with the latch lever to prevent the latch lever from being rotated by the locking lock; and a stopper that restricts a disengaged position of the latch lever where the roller does not engage with the locking lock. and when the trip bar is rotated by the trip member of the automatic tripping device during tripping, the latch lever is disengaged from the trip bar and released together with the locking mechanism, causing the cradle to rotate the released locking mechanism and the latch lever and spring up; In the device in which the movable contact is tripped, the latch lever is formed into a U-shape having an engaging side plate portion with which the trip bar engages and an abutting side plate portion that abuts the stopper. In order to insert and hold the roller therebetween, elongated holes for supporting both shafts of the roller are provided in the both side plate parts, and one of the elongated holes is provided with a large hole through which the roller can be inserted. circuit break or break. (2) A circuit breaker according to claim 1 of the utility model registration, characterized in that the large hole is provided on the tip side of the elongated hole in the abutting side plate of the latch lever.