JPH0212141U

JPH0212141U -

Info

Publication number: JPH0212141U
Application number: JP8827188U
Authority: JP
Priority date: 1988-07-01
Filing date: 1988-07-01
Publication date: 1990-01-25
Anticipated expiration: 2003-07-01
Also published as: JPH0753242Y2

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示すオフ状態の
側面断面図、第２図はオン状態を示す一部破断側
面図、第３図はトリツプ状態を示す一部破断側面
図、第４図は従来のものを示すオフ状態の側面断
面図、第５図はオン状態の一部破断側面図、第６
図はトリツプ瞬時の状態の側面断面図、第７図は
開閉機構要部を拡大して示す正面図、第８図は第
７図の斜視図である。図において、１は操作ハンドル、１ａは他端ピ
ン、２はフレーム軸、３はリンク、５は押し板、
７は可動接触子、１１はレバー、１４はフレーム
、１５は自動引外し装置、１７は接圧ばね、１８
は第１のひねりばね、２１は第２のひねりばねを
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 side sectional view showing an embodiment of this invention in the OFF state, Fig. 2 is a partially cutaway side view showing the ON state, Fig. 3 is a partially cutaway side view showing the tripped state, and Fig. 4. 5 is a side cross-sectional view of the conventional device in the OFF state, FIG. 5 is a partially cutaway side view of the ON state, and FIG.
The figure is a side cross-sectional view of the state at the instant of tripping, FIG. 7 is a front view showing an enlarged view of the main parts of the opening/closing mechanism, and FIG. 8 is a perspective view of FIG. 7. In the figure, 1 is an operating handle, 1a is a pin at the other end, 2 is a frame shaft, 3 is a link, 5 is a push plate,
7 is a movable contact, 11 is a lever, 14 is a frame, 15 is an automatic tripping device, 17 is a contact pressure spring, 18
21 represents a first torsion spring, and 21 represents a second torsion spring. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] An operating handle whose intermediate portion is rotatably supported by a frame shaft and whose one end protruding outside is manually operated; and whose other end is connected to a pin and whose other end is a link that removably engages with the push plate; and a link that transmits the force to the automatic tripping device by receiving a component of the force generated at the engagement portion between the link and the push plate, and is pivotally connected to the frame and is connected to the engagement portion of the push plate; a lever that maintains the connection, a movable contact held by the push plate, a contact pressure spring provided on the movable contact and biasing the push plate in the link direction, and a contact pressure spring wound around the frame shaft. and a first torsion spring, one end of which is engaged with the other end pin and the other end of which is engaged with the frame, and when the operating handle is turned off, the operating handle and the link are bent into a dogleg shape. At the same time, the push plate also moves together with the link due to the contact pressure spring, and the movable contact opens and separates. When the operating handle is turned on, the link, which is positioned by the lever in the locked state, is toggled with the operating handle. The link mechanism is operated to move the push plate against the contact pressure spring to close the movable contact, and when the lever is tripped to be released by the operation of the automatic tripping device. In the circuit breaker, the other end of the link is pushed away together with the lever so that the push plate is moved by the force of the contact pressure spring, and the movable contact is opened. a second torsion spring that is rotated to engage the operating handle at one end and engage the link at the other end; the first torsion spring engages the operating handle and the link when tripped; 1. A circuit breaker, characterized in that said second torsion spring prevents said operating handle from being bent and returning to an off position, thereby holding said operating handle at an intermediate position.