EP0302249B1 - Disjoncteur à maximum de courant commandé par un bouton-poussoir - Google Patents

Disjoncteur à maximum de courant commandé par un bouton-poussoir Download PDF

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Publication number
EP0302249B1
EP0302249B1 EP88110816A EP88110816A EP0302249B1 EP 0302249 B1 EP0302249 B1 EP 0302249B1 EP 88110816 A EP88110816 A EP 88110816A EP 88110816 A EP88110816 A EP 88110816A EP 0302249 B1 EP0302249 B1 EP 0302249B1
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EP
European Patent Office
Prior art keywords
lever
switching
arm
circuit breaker
switch
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.)
Expired - Lifetime
Application number
EP88110816A
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German (de)
English (en)
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EP0302249A1 (fr
Inventor
Josef Peter
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Ellenberger and Poensgen GmbH
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Ellenberger and Poensgen GmbH
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Publication date
Application filed by Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Priority to AT88110816T priority Critical patent/ATE73263T1/de
Publication of EP0302249A1 publication Critical patent/EP0302249A1/fr
Application granted granted Critical
Publication of EP0302249B1 publication Critical patent/EP0302249B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/306—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide the push-button supporting pivotally a combined contact-latch lever

Definitions

  • the invention relates to a push-button-operated overcurrent protection switch, in particular an on-board circuit breaker, with instantaneous activation and manual, thermal and / or electromagnetic release with the features specified in the preamble of claim 1.
  • Such an overcurrent protection switch is known from DE-PS 21 23 765. Its switch housing, which is composed of a lower and upper part of the housing, is penetrated by a switch rod which carries the push button at its outer end and is displaceably mounted in the pushing direction and is acted upon by a push button spring against the switch-on direction.
  • a toggle lever is arranged between the switch rod and the contact bridge, which is designed as a two-armed lever and runs approximately at right angles to the direction of displacement of the switch rod in the switch-on position and thereby connects the mating contact pieces fastened to the housing, which consists of two with their inner ends via a rotary-slide joint connected levers.
  • the first lever of the toggle lever facing the shift rod is designed as an angle lever and is pivotably mounted in first grooves of the switch housing by means of a bearing bolt arranged in the region of its angle apex and is displaceable essentially in the direction of pressure of the shift rod. Furthermore, this first lever of the toggle lever is supported with his free arm against the switch-on pressure direction of the shift rod on a locking lever adjustable by a thermal and / or electromagnetic trigger such that the toggle lever can be expanded into its extended position under the switch-on pressure movement of the switch rod. In the switched-on position, this can be fixed in the housing by means of a pawl when the toggle lever position is essentially extended.
  • this pawl is a one-armed lever mounted on the side of the first lever of the toggle lever facing away from the latching lever, which, under the tension of an opening spring stretched between it and the angle lever, with the bearing pin of the angle lever latched and fixed in the on position.
  • the second lever of the toggle lever facing away from the shift rod carries the contact bridge at its free end by means of a joint formed by a bolt, the bolt being guided in the housing in the second grooves running in the pressure direction of the shift rod.
  • the mentioned switch-off spring is attached at one end to the inner end of the first lever which projects beyond the joint of the toggle lever. With its other end, it is mounted off-center on the pawl in such a way that it acts on the toggle lever in its direction of buckling and thus in the switch-off direction.
  • the pawl itself is pressed simultaneously in the direction of its position acting on the bearing pin for the first lever of the toggle lever.
  • the switch according to DE-PS 21 23 765 is turned on by pressing the push button and off by pulling it.
  • the pawl By pulling the switch rod against the spring force of the opening spring, the pawl is pivoted out of its locking position in such a way that the first lever is torn by the opening spring in the opening direction of the switch lock. This causes the toggle to buckle and lift the contact bridge off the mating contacts fixed to the housing.
  • the object of the present invention is to further develop the overcurrent protection switch according to the prior art in such a way that switching on and off takes place in each case by pressing the push button.
  • Another advantage of the overcurrent protection switch according to the invention is the fact that only the latching between the latching lever and the free arm of the first lever of the toggle lever designed as an angle lever is responsible for the actual triggering.
  • the switch lock is fixed in the switch-on position by the support lever according to the invention, which is supported on a housing-fixed counter bearing, but the toggle lever - regardless of whether due to thermal, electromagnetic or manual release - is released by releasing the latching between the latching lever and the angle lever.
  • the two shift rods and the push-button spring are essentially parallel to each other, with the push-button spring, with its diameter, taking up space transversely to the direction of pressure, which is available per se in this direction due to the surface area of the two L-horizontal legs of the shift rods.
  • the L vertical leg of the second shift rod has a continuously decreasing width with increasing distance from the L horizontal leg. This ensures that the second shift rod can be pivoted in a plane parallel to the pivoting plane of the toggle lever within the push-button recess. At the same time, the two longitudinal side edges of the L vertical leg serve as pivot stops for the pivoting movement of the second shift rod.
  • the second shift rod is constantly subject to a swivel spring action by the push-button spring in the direction of its detection position. If the second shift rod is not latched to the guide lever, it assumes its detection position at any time and reliably, in which its driver comes into contact with the release lever arm of the detent lever when the switch-off pressure is moved.
  • the push-button spring therefore fulfills a double function in that it ensures the return of the push-button with the two switching rods in their switch-on or switch-off position and on the other hand ensures the spring action of the second switching rod in its detection position.
  • the latching lever which is already present per se, for supporting the angle lever of the toggle lever need only be supplemented by a release lever arm in order to enable the pressure to be switched off. So there is no need for the very complex, specially pivoted pawl as it is available with the switch according to the state of the art.
  • a structurally simple solution for the formation of the driver on the second shift rod is specified.
  • the latter thus essentially consists, like the first shift rod, of a metallic stamped and bent part that is very easy to produce. Due to the arrangement of the driver, which is approximately at right angles to the plane of extension of the L vertical leg, it has a greater extent than the thickness of the second shift rod. This ensures at all times that the driver in the detection position of the second shift rod detects the release lever arm of the latching lever and provides for a release of the latching between the latching and first lever of the toggle lever during the switch-off pressure movement.
  • the guide lever is designed as a T-shaped lever (claim 11), it is possible in a structurally simple and clever manner to spend it in the switched-off position of the switch lock in a defined starting position with respect to the latching with the second switching rod.
  • a guide surface is arranged in the housing, which touches the T-horizontal leg of the guide lever on the outside (claim 12). This ensures that the switch can be reliably switched on at all times, since the second switching rod latches with the guide lever in any case and its driver is guided past the trigger lever arm of the latching lever during the switch-on pressure movement.
  • Claims 13-16 relate to advantageous developments of the support lever of the switch lock. Due to the construction of the support lever in claim 13 from two plates connected by a bolt at their free ends, the latter is particularly robust and ensures a reliable fixation of the switch lock in the switched-on position. There are two support points, which additionally prevents the support lever from tilting transversely to the pivoting plane of the toggle lever. As a result, the key switch is reliably protected against tilting and a possible wedging of the individual components causing a malfunction.
  • This pivoting can be done in different ways.
  • claim 15 is a diamond-shaped, penetrated by the bolt of the support lever opening in the L-vertical leg of the first shift rod of this pivoting.
  • the opening has namely, in addition to two opposite edge edges that run parallel to the printing direction, an upper edge edge that is inclined towards the counter bearing of the support lever. This swivels the bolt of the support lever in the direction of the counter bearing during the switch-on pressure movement. In addition, it ensures transmission of the switch-on pressure movement of the first shift rod via the support lever to the bearing pin of the first lever of the toggle lever.
  • the length of the opening in the pressure direction enables the pushbutton and the two shift rods to move back after the pushbutton has reached the lowest pressure position, thereby the latch between the guide lever and the second shift rod is detachable. This also gives the pressure path for the switch-off pressure movement.
  • the position of the push button after reaching the switch-on position is defined by the lower edge of the opening, which is supported on the counter-bearing on the bolt of the support lever after the support lever has latched.
  • the inclination of the lower edge in a direction facing away from the counterbearing has the further advantage that if the switch is operated incorrectly - namely by pulling the push button to switch it off - the switch lock can also be triggered. This is because the support lever is pushed away from the counter bearing by the lower edge, whereby its support is released and the key switch is released. Faulty operation of the switch is therefore also possible, and on the other hand damage to the switch lock is avoided.
  • the pivoting action of the support lever in the direction of the counter-bearing is accomplished by a torsion spring mounted on the bearing pin of the first lever of the toggle lever and supported by its legs on the bolt of the support lever or on a projection of the lever.
  • a torsion spring mounted on the bearing pin of the first lever of the toggle lever and supported by its legs on the bolt of the support lever or on a projection of the lever.
  • the action of the first lever of the toggle lever in the switch-on pressure direction no longer takes place via the support lever, but rather directly through an abutment edge inclined towards the latching lever in the region of the inner end of the first switching rod.
  • the bearing pin and thus the first lever of the toggle lever is guided along its edge facing the locking lever within its guide grooves.
  • Claim 17 is directed to a structurally simple development of the housing-fixed counter bearing for the support lever. Since this, unlike the switch according to the prior art, no longer has to be movable in order to trigger the switching lock manually, it can be designed as a simple plate arranged at right angles to the printing direction.
  • This can have an opening according to claim 18, whereby a fixing possibility for the housing-fixed end of the opening spring is created.
  • the counter bearing plate can serve as an additional guide element for the first shift rod (claim 19).
  • the overcurrent protection switches shown in the figures in two slightly different embodiments are further developments of the switch according to DE-PS 21 23 765.
  • essentially identical components of the subject matter of the invention and of the overcurrent protection switch according to this state of the art (housing, thermal release, etc.) omitted in the figures.
  • the subject of the invention also has a two-part housing which is separated by an intermediate wall into two subchambers.
  • the thermal and / or electromagnetic triggering device is located in one of these chambers and acts on its latching with the switching lock via a latching lever bridging the intermediate wall.
  • the overcurrent protection switch according to the invention has an essentially cylindrically shaped push button (1) as an actuating element, which is displaceably guided in a pressure (2) in a housing opening (not shown). Starting from its end face pointing into the interior of the housing, the push button (1) coaxially penetrated by a rectangular, blind hole-like recess (3) also running in the printing direction (2).
  • Two shift rods engage in this recess (3) which - as can be seen particularly in FIGS. 5, 10 - are each formed from a flat iron bent in an L-shaped section. The two shift rods (4,5) are flanking each other in parallel.
  • the external shift rod (4) will be referred to hereinafter as the switch-on rod (4) and the switch rod (5) therein as the switch-off rod (5).
  • the switch-on rod (4) lies quasi upside down with its L-horizontal leg (6) on the bottom (7) of the recess (3) and is riveted, glued or the like there, for example. fixed. Its L vertical leg (8) protrudes into the housing chamber (9) formed by the intermediate wall (9A).
  • the switch-off rod (5) flanks the two corresponding legs (6, 8) of the switch-on rod (4) with their L-horizontal (10) or L-vertical legs (11).
  • the mutual contact of the two shift rods (4, 5) is ensured by the push-button spring (also in the recess (3), clamped between the housing pin (12) and the L-horizontal legs (6, 10) of the two shift rods (4, 5)). 13) maintained, which of course also acts on the push button (1) against the pressure direction (2).
  • the push button spring (13) is a coil spring.
  • the switch-in rod (4) is connected to the toggle lever (15) by its inner end (14).
  • This consists of two levers (19, 20) connected by their inner ends (16, 17) via a rotary-slide joint (18).
  • the first lever (19) of the toggle lever (15) facing the switch-on rod (4) is an angle lever formed and by means of a bearing bolt (22) arranged in the region of its angular apex (21) in grooves (23) running essentially in the pressure direction (2) in the side or intermediate wall (9A) of the switch housing and pivotably mounted in the pressure direction (2) .
  • the rotary slide joint (18) between the two levers (19, 20) is formed by the slot (24) on the toggle arm (25) of the lever (19) and the bolt (26) engaging therein on the second lever (20) .
  • the latter carries at its end facing away from the push button (1) by means of a joint (27) the contact bridge (28) designed as a two-armed lever, which bridges the two mating contacts (29, 30) fixed to the housing when the switch is in the switched-on position.
  • the joint (27) is formed by a bolt (31) which is laterally extended in grooves (32) running in the pressure direction (2) in the housing or intermediate wall (9A).
  • the groove (32) has a detent (33) which - as described in detail in DE-PS 21 23 765 - serves to turn on the torque with the housing stops (not shown) and a torsion spring on the rotary slide joint (18). Since the toggle lever and contact bridge construction have no significant differences from the overcurrent protection switch according to the prior art, no further description is given.
  • the contact pressure spring (34) designed as a torsion spring is mounted on a projection (75) of the lever (19) arranged laterally next to the slot (24). Both of your legs are supported on a projection (35) located approximately in the middle of the toggle lever arm (25) of the lever (19) or on the bolt (26) of the rotary / sliding joint (18). As a result, the second lever (20) of the toggle lever (15) is spring-loaded in the switch-on direction.
  • the locking lever (36) is pivotally mounted in the housing. 5 and 10, the locking lever (36) is designed as a U-shaped plate.
  • the locking arm (38) provided with a slot (37) running in the pressure direction (2) and formed by a U-leg lies in the housing interior (9) of the switching lock shown in FIGS. 1-4 and 6-9.
  • the intermediate wall (9A) runs between the two housing chambers (not shown or reference number (9)) of the switch.
  • the actuating arm (40) which can be acted upon by the thermal and / or electromagnetic triggering device of the switch, lies in the second housing chamber equipped with the thermal and / or electromagnetic triggering device.
  • the trigger arm (41) is attached to the latching arm (38) at an acute angle in a plane parallel to the pivoting plane of the toggle lever (15) pointing in the direction thereof. With its free end (42), this protrudes into the displacement path of the switch-off rod (5).
  • the T-shaped guide lever (43) and the one-armed support lever (44) are additionally pivotably mounted on the bearing pin (22) of the lever (19).
  • the T-horizontal leg of the guide lever (43) forms its two lever arms (45, 46).
  • the T vertical leg forms the bearing bore (47) for the pivot bearing of the guide lever (43) on the bearing pin (22).
  • the support lever (44) is formed by the two long oval-shaped plates (48, 49), which are arranged approximately parallel to the printing direction (2).
  • the two plates (48, 49) have at their end facing the contact bridge (28) aligned bearing bores (50) for pivoting the support lever (44) on the bearing pin (22). They are on both sides of the lever (19) or the switch rod (4) arranged.
  • the two plates (48, 49) are firmly connected by the bolt (52).
  • the free ends (51) have notches (53) on their sides facing away from the latching lever (36), by means of which the support lever (44) can be supported on a counter bearing fixed to the housing in the switched-on position of the switching lock.
  • the counter bearing which is fixed to the housing, is formed by the rectangular counter bearing plate (54) which is arranged with its plane perpendicular to the printing direction (2). This also has a rectangular, central opening (55), as a result of which the counter bearing plate (54) is designed like a frame.
  • the frame strut (56) remote from the switch lock is fixed the one hanging eye (57) of the switch-off spring (58) arranged on the side next to the switch lock.
  • the second suspension eye (59) acts on the upper leg of the contact pressure spring (34), which is supported on the projection (35) on the lever (19).
  • the counter bearing plate (54) also has at its edge (71) a rectangular recess (76) in which the longitudinal side edge (77) of the switch rod (5) facing it is guided in the pressure direction (2).
  • the bolt (52) between the two plates (48, 49) passes through a diamond-shaped opening (60) in the area of the housing-internal end (14) of the switch-in rod (4).
  • an additional torsion spring (61) is seated on the bearing pin (22) of the lever (19), which, with its two legs (61A, 61B), is attached to the pin (52) of the support lever (44) or supported on a side pin (62) on the lever (19).
  • Fig. 1 and 6 the switch is shown in its off position. Since the L-horizontal leg (10) of the switch-off rod (5) with its plane of extension is arranged in a small, acute angle (63) that opens towards the side of the locking lever (36), the switch-off rod (5) is held by the push-button spring (13 ) with respect to the figures in a pivoting direction clockwise. 1 and 6, the switch-off rod (5) assumes its detection position. If the push button (1) is pressed in the pushing direction (2), the two switching rods (4, 5) are moved towards the interior of the housing against the pressure of the push button spring (13).
  • the bolt (52) of the support lever (44) passes through the opening (60) in the switch-on rod (4).
  • the free end of the L vertical leg (11) of the switch-off rod (5) which is designed as a latching projection (64) that ends at an acute angle, latches with the upper lever arm (45) of the guide lever (43).
  • the bolt (52) of the support lever (44) at the same time reaches the upper edge (65) of the opening (60) in the switch-in rod (4) which is inclined towards the counter-bearing plate (54).
  • the support lever (44) is pivoted clockwise with respect to the figures and at the same time the upper lever (19) of the toggle lever (15) is displaced in the pressure direction (2). Since its free arm (66) is supported with its latching end (67) on the latch (68) of the latching lever (36) formed by the slot (37), the lever (19) is pivoted about this latching and the toggle lever (15) underneath Shifted his lower lever (20) into the extended position.
  • a contact bevel edge (72) which interacts with the bearing bolt (22) of the lever (19) of the toggle lever (15) and which engages the switch-on movement of the push button (1) transfers to the bearing pin (22).
  • the bolt (52) of the support lever (44) does not come into contact with the upper edge (65) of the opening (60).
  • the torsion spring (61) acts on the support lever (44) in a clockwise direction.
  • the driver (69) is arranged in the region of the free end of the L vertical leg (11) of the switch-off rod (5) on the longitudinal side edge (70) facing the latching lever (36) and is designed as a bent flap bent approximately at right angles to the plane of extension of this L vertical leg (11) .
  • the switch is shown in its switched-on position, which is reached after the extreme push-in position has been reached by releasing the push button.
  • the push button (1) and the two switching rods (4, 5) are moved under the influence of the push button spring (13) against the direction of pressure (2) until the lower edge (73) of the opening (73) inclined away from the counter bearing plate (54) 6D) comes into contact with the bolt (52) of the support lever (44).
  • This stop limits the return movement of the push button (1) and the switching rods (4, 5).
  • the switch-off rod (5) swings back into its detection position.
  • the key switch fixed in the switch-on position by the support lever (44) is now ready for release.
  • the corresponding tripping element acts on the loading arm (40) of the latching lever (36) clockwise with respect to the figures.
  • the latching lever (36) is also pivoted in this direction and the latching between the latching end (67) of the lever (19) and the latch (68) is released.
  • the switch-off spring (58) Under the influence of the switch-off spring (58), the toggle lever (15) is torn into its kink position and the contact bridge (28) lifts off the mating contacts (29, 30) fixed to the housing.

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  • Breakers (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (19)

  1. Disjoncteur à maximum de courant commandé par un bouton-poussoir, en particulier disjoncteur de circuit de bord, avec enclenchement instantané ainsi que déclenchement manuel, thermique et/ou électromagnétique, où
    - le boîtier du disjoncteur est traversé par une tige de commande (4) portant à son extrémité extérieure le bouton-poussoir (1), coulissant dans la direction d'actionnement (2) et soumise à l'action d'un ressort du bouton-poussoir (13) dans le sens inverse de la direction d'actionnement ;
    - le boîtier du disjoncteur comporte entre la tige de commande (4) et un pontet de contact (28) un mécanisme à genouillère (15) constitué de deux branches (19, 20) articulées (articulation pivotante et coulissante 18) par leurs extrémités intérieures (16, 17) ;
    - la première branche (19) du mécanisme à genouillère (15), tournée vers la tige de commande (4),
    - - a la forme d'un levier coudé,
    - - est montée basculante et pivotante, essentiellement dans la direction d'actionnement (2) de la tige de commande (4),
    - - s'appuie par son bras libre (66) dans le sens opposé à la direction d'actionnement (2) de la tige de commande (4) contre une gâchette à encoche (36) pouvant être actionnée par un ou dispositif de déclenchement thermique et/ou électromagnétique, si bien que le mécanisme à genouillère (15) peut s'écarter et prendre sa position écartée sous l'effet du mouvement d'actionnement de la tige de commande (4), et
    - - peut être fixée par un cliquet sur le boîtier dans la position d'enclenchement, lorsque le mécanisme à genouillère (15) est en position essentiellement écartée ;
    - la seconde branche (20) du mécanisme à genouillère (15), opposée à la tige de commande (4) porte à son extrémité libre, guidée longitudinalement dans la direction d'actionnement (2), le pontet de contact (28) ;
    - un ressort de déclenchement (58) est monté entre la première branche (19) et un point d'appui solidaire du boîtier (plaquette d'appui 54) de manière à être tendu dans la position d'enclenchement et à exercer son action sur le mécanisme à genouillère (15) dans la direction de repliement et donc dans la direction de déclenchement ;
    caractérisé en ce que
    - une seconde tige de commande (5) flanquant parallèlement la première tige de commande (4)
    - - est guidée et coulisse dans le boîtier du disjoncteur dans la direction d'actionnement (2) avec la première tige de commande (4),
    - - est montée de manière à pouvoir basculer dans un plan parallèle au plan de basculement du mécanisme à genouillère (15) entre une position d'engagement et une position de dégagement, c'est-à-dire que la tige de commande (5)
    - -- dans la position d'engagement pendant le mouvement de déclenchement, bascule la gâchette à encoche (36) pour libérer le mécanisme à genouillère (15), et
    - -- dans la position de dégagement pendant le mouvement d'enclenchement, passe le long de la gâchette à encoche (36), et
    - - est chargée par un ressort dans la direction de la position d'engagement ;
    - la première branche (19) du mécanisme à genouillère (15) porte
    - - un levier de guidage (43) commandé par la première branche (19) et pouvant s'encliqueter avec la seconde tige de commande (5) afin de faire basculer la seconde tige de commande (5) pendant le mouvement d'enclenchement entre une position d'engagement et une position de dégagement, et
    - - un levier d'appui (44) servant de verrou s'engageant sur un point d'appui solidaire du boîtier.
  2. Disjoncteur à maximum de courant selon la revendication 1, caractérisé en ce que
    - la première branche (19) du mécanisme à genouillère (15) est montée pivotante, de manière connue en soi à l'aide d'un tourillon (22) disposé au niveau du sommet de son coude (21) dans des premières rainures (23) ménagées dans le boîtier du disjoncteur ainsi que coulissante essentiellement dans la direction d'actionnement (2) des tiges de commande (4, 5) et en ce que
    - aussi bien le levier de guidage (43) que le levier d'appui (44) sont montés pivotants sur ce tourillon (22).
  3. Disjoncteur à maximum de courant selon la revendication 1 ou 2, caractérisé en ce que les deux tiges de commande (4, 5) sont formées de fers plats coudés en L dans le sens longitudinal et disposés l'un dans l'autre, dont le plan des ailes verticales du L (8, 11) est parallèle au plan de basculement du mécanisme à genouillère (15) et sont montées la tête en bas dans un logement (3) de forme parallélépipédique de largeur adéquate ménagé sur le côté intérieur du bouton-poussoir (1).
  4. Disjoncteur à maximum de courant selon la revendication 3, caractérisé en ce que la première tige de commande (4), extérieure, est fixée par l'aile horizontale de son L (6) au fond (7) du logement (3) du bouton-poussoir (1) et en ce que, après installation de l'aile horizontale du L (10) de la seconde tige de commande (5), intérieure, le ressort du bouton-poussoir (13) est tendu entre d'une part un point d'appui solidaire du boîtier (saillie du boîtier 12) et d'autre part les ailes horizontales du L (6, 10) des tiges de commande (4, 5) disposées de manière essentiellement parallèle entre elles.
  5. Disjoncteur à maximum de courant selon la revendication 3 ou 4, caractérisé en ce que l'aide verticale du L (11) de la seconde tige de commande (5) présente une largeur diminuant de manière continue à partir de l'aile horizontale du L (10).
  6. Disjoncteur à maximum de courant selon la revendication 5, caractérisé en ce que l'aile horizontale du L (10) de la seconde tige de commande (5) est inclinée transversalement en se situant dans un plan formant un petit angle aigu (63) s'ouvrant dans la direction de la gâchette à encoche (36) par rapport au plan de l'aile horizontale du L (6) de la première tige de commande (4).
  7. Disjoncteur à maximum de courant selon l'une des revendications précédentes, caractérisé en ce que la seconde tige de commande (5) possède un entraîneur latéral (69) destiné à actionner un bras de déclenchement (41) supplémentaire de la gâchette à encoche (36) pendant son mouvement de déclenchement.
  8. Disjoncteur à maximum de courant selon la revendication 7, caractérisé en ce que l'entraîneur (69) associé à la seconde tige de commande (5) a la forme d'une languette coudée de manière sensiblement perpendiculaire par rapport au plan de l'aile verticale du L (11) et disposée au niveau de l'extrémité libre de l'aile verticale du L (11) sur l'arête longitudinale (70) tournée vers la gâchette à encoche (36).
  9. Disjoncteur à maximum de courant selon l'une des revendications 3 à 8, caractérisé en ce que l'extrémité libre de l'aile verticale du L (11) de la seconde tige de commande (5) se termine en pointe formant une saillie d'encliquetage (64) interagissant avec le levier de guidage (43).
  10. Disjoncteur à maximum de courant selon l'une des revendications précédentes, caractérisé en ce que le levier de guidage (43) a la forme d'un levier à deux bras disposé essentiellement dans la direction d'actionnement (2), où
    - l'extrémité libre du bras de levier (45) tourné vers le bouton-poussoir (1) s'encliquette avec l'extrémité intérieure de la seconde tige de commande (5) dans le mouvement d'enclenchement et où
    - l'extrémité libre du bras de levier (46) tourné vers le pontet de contact (28) peut être basculée dans la direction d'extension du mécanisme à genouillère (15) en entrant en butée contre une saillie d'entraînement (goupille 62) de la première branche (19) du mécanisme à genouillère (15).
  11. Disjoncteur à maximum de courant selon la revendication 10, caractérisé en ce que le levier de guidage (43) a la forme d'un levier en T dont l'aile horizontale du T forme les deux bras de levier (45, 46) tandis que l'aile verticale du T est montée pivotante sur le tourillon (22) de la première branche (19) du mécanisme à genouillère (15).
  12. Disjoncteur à maximum de courant selon la revendication 11, caractérisé en ce que l'aile horizontale du T (bras de levier 45, 46) du levier de guidage (43), dans la position de déclenchement du verrou de maintien, entre en contact avec une surface de guidage (74) disposée essentiellement dans la direction d'actionnement (2) qui a pour effet de placer le levier de guidage (43), pour son encliquetage avec la seconde tige de commande (5), dans une position initiale définie où les deux bras de levier (45, 46) sont sensiblement parallèles à la direction d'actionnement (2).
  13. Disjoncteur à maximum de courant selon l'une des revendications précédentes, caractérisé en ce que le levier d'appui (44) est un levier à un seul bras formé par deux plaquettes (48, 49) qui sont disposées parallèlement entre elles de part et d'autre de la première branche (19) du mécanisme à genouillère (15) et sont montées pivotantes sur le tourillon (22) de cette dernière et reliées à leurs extrémités libres (51) par un tourillon (52), et qui portent à leurs extrémités libres (51) des décrochements latéraux (53) par lesquels elles s'appuient dans la position d'enclenchement sur le point d'appui solidaire du boîtier monté du côté opposé à la gâchette à encoche (36).
  14. Disjoncteur à maximum de courant selon l'une des revendications précédentes, caractérisé en ce que le levier d'appui (44) bascule dans la direction du point d'appui au moins pendant le mouvement d'enclenchement.
  15. Disjoncteur à maximum de courant selon la revendication 14, caractérisé en ce que le tourillon (52) reliant entre elles les extrémités libres (51) des plaquettes (48, 49) du levier d'appui (44) passe dans une traversée (60) en forme de losange ménagée dans l'aile verticale du L (8) de la première tige de commande (4), où
    - deux arêtes opposées de la traversée sont orientées de manière sensiblement parallèle à la direction d'actionnement (2),
    - l'arête la plus élevée (65) des deux autres arêtes opposées (65, 73) est inclinée vers le point d'appui du levier d'appui (44) et, jouant le rôle de came de commande dans le mouvement d'enclenchement,
    - - pousse le tourillon (52), et donc le levier d'appui (44), dans la direction d'enclenchement, ainsi que de même, par le tourillon (22), la première branche (19) du mécanisme à genouillère (15), et
    - - bascule le tourillon (52) du levier d'appui (44) dans la direction du point d'appui pour le faire prendre appui contre le point d'appui, et où
    - la dernière arête (73), inférieure, est inclinée dans une direction opposée à la direction du point d'appui et, jouant le rôle d'arête de butée contre laquelle vient le tourillon (52), limite le mouvement de retour des tiges de commande (4, 5) et du bouton-poussoir (1) lorsque la position d'enclenchement du verrou de maintien a été atteinte.
  16. Disjoncteur à maximum de courant selon la revendication 14, caractérisé en ce que
    - le tourillon (52) reliant entre elles les extrémités libres (51) des plaquettes (48, 49) du levier d'appui (44)
    - - passe avec jeu dans une traversée (60) ménagée dans l'aile verticale du L (8) de la première tige de commande (4) et
    - - est poussé élastiquement dans la direction de basculement vers le point d'appui par l'aile (61a) d'un ressort de torsion (61) monté sur le tourillon (22) de la première branche (19) du mécanisme à genouillère (15) et reposant par sa seconde branche (61b) sur une saillie (goupille 62) de la branche (19), et en ce que
    - la première tige de commande (4), au niveau de son extrémité intérieure (14) porte une arête biaise (72) orientée vers la gâchette à encoche (36) qui interagit avec le tourillon (22) de la première branche (19) du mécanisme à genouillère (15) lors du mouvement d'enclenchement.
  17. Disjoncteur à maximum de courant selon l'une des revendications précédentes, caractérisé en ce que le point d'appui sur lequel vient s'appuyer le levier d'appui (44) est formé par une plaquette (plaquette d'appui 54) disposée dans un plan perpendiculaire à la direction d'actionnement (2).
  18. Disjoncteur à maximum de courant selon la revendication 17, caractérisé en ce que la plaquette (plaquette d'appui 54) présente une traversée (55) dans laquelle est suspendu l'oeillet de suspension (57) de l'extrémité du ressort de déclenchement (58) solidaire du boîtier.
  19. Disjoncteur à maximum de courant selon la revendication 17 ou 18, caractérisé en ce que l'arête longitudinale (77) de l'aile verticale du L (8) de la première tige de commande (4) tournée vers la plaquette d'appui (54) est guidée dans la direction d'actionnement (2) par un décrochement de guidage (76) ménagé dans l'arête de la plaquette d'appui (54) tournée vers elle (arête 71).
EP88110816A 1987-08-07 1988-07-07 Disjoncteur à maximum de courant commandé par un bouton-poussoir Expired - Lifetime EP0302249B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88110816T ATE73263T1 (de) 1987-08-07 1988-07-07 Druckknopfbetaetigter ueberstromschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8710812U DE8710812U1 (fr) 1987-08-07 1987-08-07
DE8710812U 1987-08-07

Publications (2)

Publication Number Publication Date
EP0302249A1 EP0302249A1 (fr) 1989-02-08
EP0302249B1 true EP0302249B1 (fr) 1992-03-04

Family

ID=6810883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110816A Expired - Lifetime EP0302249B1 (fr) 1987-08-07 1988-07-07 Disjoncteur à maximum de courant commandé par un bouton-poussoir

Country Status (5)

Country Link
US (1) US4864268A (fr)
EP (1) EP0302249B1 (fr)
JP (1) JPS6465741A (fr)
AT (1) ATE73263T1 (fr)
DE (2) DE8710812U1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2019412346B2 (en) * 2018-12-28 2023-04-27 Zhejiang Chint Electrics Co., Ltd. Miniature circuit breaker
CN109686625B (zh) * 2018-12-28 2024-05-07 浙江正泰电器股份有限公司 小型断路器
CN109686626B (zh) 2018-12-28 2024-05-07 浙江正泰电器股份有限公司 小型断路器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2335082A (en) * 1942-08-27 1943-11-23 Bulldog Electric Prod Co Switch
DE874171C (de) * 1944-10-01 1953-04-20 Siemens Ag Selbstschalter mit konzentrischer Anordnung des Ein- und Ausschaltdruckknopfes
DE1020718B (de) * 1951-11-26 1957-12-12 Leopold Kostal Elektrotechnisc Installations-Selbstschalter
DE1292729B (de) * 1964-07-27 1969-04-17 Licentia Gmbh Thermischer Kleinselbstschalter mit Hand- und Freiausloesung
DE2123765B1 (de) * 1971-05-13 1972-05-31 Ellenberger & Poensgen Dr]ckknopfbet[tigter ]berstromschalter

Also Published As

Publication number Publication date
JPS6465741A (en) 1989-03-13
US4864268A (en) 1989-09-05
DE8710812U1 (fr) 1987-10-29
ATE73263T1 (de) 1992-03-15
DE3868761D1 (en) 1992-04-09
EP0302249A1 (fr) 1989-02-08

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