JPH0451746U

JPH0451746U -

Info

Publication number: JPH0451746U
Application number: JP9414290U
Authority: JP
Priority date: 1990-09-05
Filing date: 1990-09-05
Publication date: 1992-04-30

Description

[Brief explanation of the drawing]

第１図〜第４図はこの考案の一実施例を示す図
であつて、第１図は釈放形電磁引外し装置を示す
側面図、第２図は第１図の線−の断面図、第
３図はフレームの斜視図、第４図はピン軸の斜視
図である。第５図〜第１２図は従来の遮断器を示
す図であつて、第５図は投入バネが放勢したトリ
ツプ状態を示す側面断面図、第６図はチヤージが
完了したオフ状態を示す側面断面図、第７図はオ
ン状態を示す側面断面図、第８図は第５図の要部
のみを示す説明図、第９図は第６図の要部のみを
示す説明図、第１０図は第７図の要部のみを示す
説明図、第１１図はカムシヤフトの側面図、第１
２図はメインシヤフトの側面図である。第１３図
〜第１８図は従来の釈放形電磁引外し装置を示す
図であつて、第１３図は第５図を背面側からみた
トリツプ状態のリセツト後を示す側面図、第１４
図は第７図を背面側からみたオン状態を示す側面
図、第１５図は第１３図の要部を示す断面図、第
１６図はラツチ引外し完了時を示す第１５図と同
じ図、第１７図はアクチユエータの突出状態を示
す第１５図と同じ図、第１８図は第１３図の線
−の断面図である。図において、３は手動操作ハンドル、７はカム
、９はチヤージアーム、１３は投入バネ、１６，
１８はクローズラツチ、２０はクローズバー、２
１はメインシヤフト、２６は投入トグルリンク機
構、３４はトリツプラツチ、３５はトリツプバー
、Ｘは釈放形電磁引外し装置、４７は取付板、４
７Ａはコの字状軸受部、４８は電磁装置、４８ａ
はプランジヤ、４９はフレーム、５０はアクチユ
エータ、５２は引外しバネ、５３はラツチ、５５
はラツチバネ、５６はリセツトバネ、５７はピン
軸、５８はリセツトレバー、５９はレバー復帰用
バネ、６０はアクチユエータリセツト用ひねりば
ね、６４はフレームアーム、６４ａは切欠き、６
５は係合溝を示す。なお、各図中同一符号は同一
または相当部分を示す。 1 to 4 are views showing one embodiment of this invention, in which FIG. 1 is a side view showing a release type electromagnetic tripping device, FIG. 2 is a sectional view taken along the line - in FIG. 1, FIG. 3 is a perspective view of the frame, and FIG. 4 is a perspective view of the pin shaft. 5 to 12 are views showing a conventional circuit breaker, in which FIG. 5 is a side sectional view showing the trip state in which the closing spring is released, and FIG. 6 is a side sectional view showing the off state in which charging is completed. 7 is a side sectional view showing the ON state, FIG. 8 is an explanatory view showing only the main parts of FIG. 5, FIG. 9 is an explanatory view showing only the main parts of FIG. 6, and FIG. 10 is an explanatory diagram showing only the main parts of Figure 7, Figure 11 is a side view of the camshaft, and Figure 1 is a side view of the camshaft.
Figure 2 is a side view of the main shaft. 13 to 18 are diagrams showing a conventional open-type electromagnetic tripping device, in which FIG. 13 is a side view of FIG. 5 viewed from the rear side after the trip state has been reset, and FIG.
The figure is a side view of FIG. 7 showing the on state when viewed from the rear side, FIG. 15 is a sectional view showing the main part of FIG. 13, and FIG. 16 is the same view as FIG. FIG. 17 is the same view as FIG. 15 showing the protruding state of the actuator, and FIG. 18 is a sectional view taken along the line - in FIG. 13. In the figure, 3 is a manual operation handle, 7 is a cam, 9 is a charge arm, 13 is a closing spring, 16,
18 is a close latch, 20 is a close bar, 2
1 is a main shaft, 26 is a closing toggle link mechanism, 34 is a trip latch, 35 is a trip bar, X is a release type electromagnetic tripping device, 47 is a mounting plate, 4
7A is a U-shaped bearing part, 48 is an electromagnetic device, 48a
is a plunger, 49 is a frame, 50 is an actuator, 52 is a tripping spring, 53 is a latch, 55
is a latch spring, 56 is a reset spring, 57 is a pin shaft, 58 is a reset lever, 59 is a lever return spring, 60 is a twist spring for actuator reset, 64 is a frame arm, 64a is a notch, 6
5 indicates an engagement groove. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] A charging cam rotationally driven by a motor or a manual operation handle, a charge arm that engages with the charging cam and is rotationally displaced, and is charged by the rotation of the charge arm. A closing spring, a closing bar that engages with the charging cam via a closing latch and is turned on manually or by a solenoid, a rotatable main shaft, and a contact opening/closing mechanism provided on the main shaft. a closing toggle link mechanism, and a trip bar connected to the closing toggle link mechanism via a trip latch or the like and tripped by a release type electromagnetic trip device. When the trigger is operated, the toggle link mechanism is bent by the operation of the trip latches, and the main shaft is rotated to turn the contact off, and further, the release type electromagnetic tripping device attaches the device to the circuit breaker body. a mounting plate for the release-type electromagnetic device, a release-type electromagnetic device fixed to the mounting plate, a frame attached to the release-type electromagnetic device, and an actuator attached to the frame to move between a standby position and an extended position; a trip spring biasing the actuator in the direction of the protruding position; a latch that engages the plunger; a latch spring that biases the latch into a position in which it engages the actuator; and a reset spring that is provided on the actuator and that resets the plunger by pushing it out of the release position when the actuator is extended. a pin shaft whose both ends are supported by U-shaped bearings of the mounting plate; a reset lever rotatably attached to the pin shaft and constantly pressed against the arm of the main shaft by a lever return spring; an actuator reset torsion spring attached to the pin shaft and having one end engaged with the reset lever and the other end engaged with the actuator, and when the plunger is released, the latch resists the latch spring. At the same time, the actuator is projected by the trip spring and rotates the trip bar, and at the same time, the plunger is pushed in and reset by the reset spring that moves together with the actuator, and the trip bar is reset. When the main shaft rotates, the reset lever is rotated against the lever return spring, and the reset lever rotates the torsion spring to reset the actuator, A frame arm having a notch at the tip thereof is provided on the frame, an engagement groove in which the notch engages is provided in the pin shaft, and the frame is inserted into the frame with the notch engaged in the engagement groove. A circuit breaker characterized in that it is attached to the mounting plate together with a release type electromagnetic device.