FR2474760A1 - Latch mechanism for protective disconnector - has arm acting on steel ball attached to end of pivoted contact lever - Google Patents

Latch mechanism for protective disconnector - has arm acting on steel ball attached to end of pivoted contact lever Download PDF

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Publication number
FR2474760A1
FR2474760A1 FR8101041A FR8101041A FR2474760A1 FR 2474760 A1 FR2474760 A1 FR 2474760A1 FR 8101041 A FR8101041 A FR 8101041A FR 8101041 A FR8101041 A FR 8101041A FR 2474760 A1 FR2474760 A1 FR 2474760A1
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FR
France
Prior art keywords
lever
steel ball
arm
ball
latch mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8101041A
Other languages
French (fr)
Other versions
FR2474760B1 (en
Inventor
Gunter Boker
Marion Sturhan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2474760A1 publication Critical patent/FR2474760A1/en
Application granted granted Critical
Publication of FR2474760B1 publication Critical patent/FR2474760B1/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/505Latching devices between operating and release mechanism
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/505Latching devices between operating and release mechanism
    • H01H2071/506Latching devices between operating and release mechanism using balls or rollers in the latching device
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/52Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

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  • Breakers (AREA)
  • Mechanical Control Devices (AREA)

Abstract

The latch mechanism has a first lever (5) with a normal commercial steel ball (9) welded to its end. The ball co-operates with the flat end of an arm (3). The arm thereby pushes against the lever and causes its other end - the end carrying the moving contact (10) - to press against a fixed contact (11). The arm is disengaged from the ball by a pivoted second lever (12) thereby allowing a spring (8) to pivot the first lever (5) so that its moving contact breaks with the fixed contact. The arm can drop back against the ball (thereby bringing the contacts together again) when the second pivoted lever has moved clear.

Description

la présente invention se rapporte à un dispositif ae verrouillage pour mécanisme de commutation de disjonc tueur.  the present invention relates to a locking device for killer breaker switching mechanism.

Dans les disjoncteurs connus on utilise généralement des pièces réalisées par emboutissage en tant qu'éléments de verrouillage comme cela est le cas par exemple pour le mécanisme suivant le brevet DE 1 192 730. Dans ce mécanisme un cliquet en forme de V relié par une patte à une manette de commande manuelle est verrouillé sur un levier de tension à l'état enclenché d'un levier de contact, de façon qu'un cliquet s'engage par sa branche en forme de crochet derrière le bord d'un évidemment du levier de tension. Lors du déclenchement un levier exerce une pression sur l'autre branche du cliquet en libérant la branche en forme de crochet du bord de l'évidement du levier de tension.Ce verrouillage en principe sûr présente cependant l'inconvénient que les pièces d'encliquetage r6 & lisées par emboutissage présentent après leur fabrication une rugosité superficielle qui doit être éliminée par un usinage onéreux. In known circuit breakers, parts produced by stamping are generally used as locking elements, as is the case for example for the mechanism according to patent DE 1,192,730. In this mechanism a V-shaped pawl connected by a lug to a manual control lever is locked on a tension lever in the engaged state of a contact lever, so that a pawl engages by its hook-shaped branch behind the edge of a lever recess Of voltage. When triggered, a lever exerts pressure on the other branch of the pawl by releasing the hook-shaped branch from the edge of the recess of the tension lever. However, in principle safe locking has the drawback that the snap-in parts r6 & lisée by stamping present after their manufacture a surface roughness which must be eliminated by expensive machining.

Un autre mécanisme connu par le brevet DE 2 504 954 comporte un dispositif d'encliquetage dont les différentes
pièces sont réalisées en une matière synthétique par moulage par injection. Cependant ces pièces ne présentent qu'une dureté limitée et de ce fait elles ne peuvent gdntralement pas supporter les efforts superficiels se produisant dans un mécanisme de ce type.
Another mechanism known from patent DE 2 504 954 includes a latching device, the different
parts are made of synthetic material by injection molding. However, these parts have only limited hardness and therefore they cannot generally withstand the surface forces occurring in a mechanism of this type.

La présente invention a pour objet de créer un dispositif de verrouillage d'encliquetage dont les pièces constitutives présentent, dès leur fabrication, une surface de bonne qualité tout en pouvant être réalises de façon simple. The object of the present invention is to create a ratchet locking device, the constituent parts of which have, from their manufacture, a good quality surface while being able to be produced in a simple manner.

Ces problèmes sont résolus conformément à l'invention par un dispositif de verrouillage qui est caractérisé en ce que les éléments de verrouillage sont constitués par une bille d'acier reliée à un levier de préférence par soudure et par un axe en acier à extrémité aplatie. These problems are solved in accordance with the invention by a locking device which is characterized in that the locking elements consist of a steel ball connected preferably to a lever by welding and by a steel pin with a flattened end.

Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit,
Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple non limitatif au dessin annexé.
Various other characteristics of the invention will also emerge from the detailed description which follows,
An embodiment of the object of the invention is shown, by way of non-limiting example in the accompanying drawing.

La fig. I représente le mécanisme de commutation d'un disjoncteur0
La fig. 2 montre, à plus grande échelle, le verrouillage de ce mécanisme.
Fig. I represents the switching mechanism of a circuit breaker 0
Fig. 2 shows, on a larger scale, the locking of this mechanism.

Le mécanisme de commutation suivant la fig. 1 se compose d'une manette de commande manuelle 1-qui est montée pour pivoter autour d'un axe fixe 2. Un levier de tension 3, présentant à son extrémité libre une branche coudée et sur son c8té extérieur une branche aplatie 3aRest articulé à la manette 1. Un ressort 4 dont l'une des extrémités est reliée au boîtier du disjoncteur agit avec l'autre extrémité sur le levier de tension 3. La branche 3a sert à la retenue d'un levier de contact 5 qui est monté par l'intermédiaire d'un trou oblong 6 sur un axe 7 solidaire du bottier. Le levier de contact 5 est soumis à la force d'un ressort 8 qui prend appui sur le boîtier.Le levier de
tension 3 coopère avec le levier de contact 5 par l'intermédiaire d'une bille en acier 9 qui est fixée sur l'une des extrémités de ce dernier. Sur l'autre extrémité le levier 5 porte une pièce de contact 10 qui s 'applique sur un contact fixe Il. Un levier de déclenchement 12 pouvant pivoter autour d'un axe fixe 13 et dont la course de pivotement dans le sens des aiguilles d'une montre est limitée par une butée 14 solidaire du bottier coopère avec le levier de tension 30 Un organe de déclenchement 15 agit dans le sens de la flèche sur le levier 12.
The switching mechanism according to fig. 1 consists of a manual control lever 1-which is mounted to pivot around a fixed axis 2. A tension lever 3, having at its free end a bent branch and on its outer side a flattened branch 3aRest articulated to the lever 1. A spring 4, one of the ends of which is connected to the circuit breaker box, acts with the other end on the tension lever 3. The branch 3a serves to retain a contact lever 5 which is mounted by through an oblong hole 6 on an axis 7 integral with the shoemaker. The contact lever 5 is subjected to the force of a spring 8 which bears on the housing.
tension 3 cooperates with the contact lever 5 via a steel ball 9 which is fixed to one of the ends of the latter. On the other end the lever 5 carries a contact piece 10 which is applied to a fixed contact II. A trigger lever 12 which can pivot about a fixed axis 13 and whose pivoting stroke in the clockwise direction is limited by a stop 14 integral with the shoemaker cooperates with the tension lever 30 A trigger member 15 acts in the direction of the arrow on the lever 12.

la bille en acier 9 fixée sur le levier de contact 5, de préférence par soudure est une bille en acier courant du commerce et elle convient particulièrement bien en tant qu'élément de retenue en raison de l'excellente qualité de sa surface. La liaison par soudure de la bille en acier 9 avec le levier de contact 5 n'exerce aucune influence sur l'endroit, la surface de butée assurant le verrouillage du fait que cette dernière est décalée de 900 par rapport à l'endroit de fixation, Etant donné que la mise en orme à la presse de la branche coudée 3a du levier de tension 3 est une opération simple et que cette surface aplatie présente également une excellente qualité superficielle, cette branche 3a forme-un endroit de butte particulièrement favorable en coopération avec la bille en acier 9. Au lieu de la branche coudée 3a du levier de tension 3, il est également possible d'utiliser directement la surface d'ex extrémité du levier de tension pour le verrouillage avec la bille en acier.  the steel ball 9 fixed to the contact lever 5, preferably by welding, is a commercially available steel ball and it is particularly suitable as a retaining element because of the excellent quality of its surface. The connection by welding of the steel ball 9 with the contact lever 5 has no influence on the location, the abutment surface ensuring the locking that the latter is offset by 900 relative to the fixing location Since the elbow press 3a of the tension lever 3 is shaped in a press is a simple operation and this flat surface also has excellent surface quality, this branch 3a forms a particularly favorable mound location in cooperation with the steel ball 9. Instead of the bent branch 3a of the tension lever 3, it is also possible to directly use the end surface of the tension lever for locking with the steel ball.

Claims (2)

REVENDICATIONS ? - Dispositif de verrouillage pour mécanisme de commutation de disjoncteur, caractérisé en ce que les éléments de verrouillage sont constitués par une bille d'acier (9) reliée à un levier de préférence par soudure et par un axe en acier (3) & extrémité aplatie (3a). ? - Locking device for circuit breaker switching mechanism, characterized in that the locking elements consist of a steel ball (9) connected to a lever preferably by welding and by a steel pin (3) & flattened end (3a). 2 - dispositif de verrouillage suivant la revendication 1, caractérisd en ce que la bille en acier (9) est reliée par une soudure au c8té extérieur de l'une des extrémités d'un levier de contact (5) et en ce qu'un axe en acier (3a) formant une partie d'un levier de tension (3) coopère par une branche aplatie et coudée sur le caté en regard de la bille en acier (9) ou par son extrémité avant étroite avec cette bille (9).  2 - locking device according to claim 1, characterized in that the steel ball (9) is connected by welding to the outer side of one of the ends of a contact lever (5) and in that a steel axle (3a) forming part of a tension lever (3) cooperates by a flattened and bent branch on the caté opposite the steel ball (9) or by its narrow front end with this ball (9) .
FR8101041A 1980-01-26 1981-01-21 LOCKING DEVICE FOR CIRCUIT BREAKER SWITCHING MECHANISM Expired FR2474760B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803002795 DE3002795C2 (en) 1980-01-26 1980-01-26 Latching of the switching mechanism of a circuit breaker

Publications (2)

Publication Number Publication Date
FR2474760A1 true FR2474760A1 (en) 1981-07-31
FR2474760B1 FR2474760B1 (en) 1985-08-09

Family

ID=6093007

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8101041A Expired FR2474760B1 (en) 1980-01-26 1981-01-21 LOCKING DEVICE FOR CIRCUIT BREAKER SWITCHING MECHANISM

Country Status (2)

Country Link
DE (1) DE3002795C2 (en)
FR (1) FR2474760B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641001A (en) * 1984-06-15 1987-02-03 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
JPH0119315Y2 (en) * 1984-09-19 1989-06-05
US4743878A (en) * 1985-05-01 1988-05-10 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
DE3619242C2 (en) * 1986-06-07 1994-07-21 Kloeckner Moeller Gmbh Switching mechanism for a circuit breaker
DE3643511A1 (en) * 1986-12-19 1988-06-30 Felten & Guilleaume Energie MECHANISM FOR A FAULT CIRCUIT BREAKER COMBINED WITH A CIRCUIT BREAKER
DE4336480C2 (en) * 1993-10-26 1995-11-02 Felten & Guilleaume Energie Switching mechanism for electrical protective switching devices
DE19507605C1 (en) * 1995-03-04 1996-08-22 Abb Patent Gmbh Snap-action latching mechanism for electrical switch
DE102012203295A1 (en) * 2012-03-02 2013-09-05 Siemens Aktiengesellschaft Switch lock for a circuit breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE550267C (en) * 1930-07-12 1932-05-06 Aeg Switching device for self-release
DE660341C (en) * 1935-06-29 1938-05-21 Stotz Kontakt Gmbh Overcurrent circuit breaker with toggle switch
US3649793A (en) * 1970-08-13 1972-03-14 Electro Switch Corp Trigger mechanism for rotary switches and the like

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962998C (en) * 1953-07-07 1957-05-02 Richard Geyer Energy storage and reset device, in particular for small self-switches, motor protection switches and tariff monitors
DE1989915U (en) * 1968-03-02 1968-07-25 Siemens Ag ELECTRIC SWITCH WITH LOCKABLE SWITCHING MECHANISM.
FR2176494B2 (en) * 1971-12-02 1977-12-23 Legrand Sa

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE550267C (en) * 1930-07-12 1932-05-06 Aeg Switching device for self-release
DE660341C (en) * 1935-06-29 1938-05-21 Stotz Kontakt Gmbh Overcurrent circuit breaker with toggle switch
US3649793A (en) * 1970-08-13 1972-03-14 Electro Switch Corp Trigger mechanism for rotary switches and the like

Also Published As

Publication number Publication date
DE3002795C2 (en) 1982-08-05
FR2474760B1 (en) 1985-08-09
DE3002795A1 (en) 1981-07-30

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