EP0212427A1 - Operating mechanism for an electric switch with three positions - Google Patents

Operating mechanism for an electric switch with three positions Download PDF

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Publication number
EP0212427A1
EP0212427A1 EP86110816A EP86110816A EP0212427A1 EP 0212427 A1 EP0212427 A1 EP 0212427A1 EP 86110816 A EP86110816 A EP 86110816A EP 86110816 A EP86110816 A EP 86110816A EP 0212427 A1 EP0212427 A1 EP 0212427A1
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EP
European Patent Office
Prior art keywords
spring
switch
link
pin
shaft
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
EP86110816A
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German (de)
French (fr)
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EP0212427B1 (en
Inventor
Kurt Dipl.-Ing. Voigtländer
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT86110816T priority Critical patent/ATE43749T1/en
Publication of EP0212427A1 publication Critical patent/EP0212427A1/en
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Publication of EP0212427B1 publication Critical patent/EP0212427B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth

Definitions

  • the invention relates to a drive for an electrical three-position switch according to the preamble of claim 1.
  • a drive for an electrical three-position switch of the type mentioned in the preamble of claim 1 is already known.
  • This drive consists of a spring drive assembly and a storage drive assembly. Because of the unequal functions, the two modules differ in the number of parts they use. The parts of one assembly are also designed and arranged differently than the parts of the other assembly. Although this in no way has an adverse effect on the functionality of the drive, it is an obstacle to efficient production and storage (DE-PS 32 39 839).
  • Spring jumpers are also known in electrical switches which have a four-link chain in which a link is fixed as a frame (the knowledge of patentable inventions and their representation in the patent specification of Dr.-Ing.Kurt Abraham, publisher of Robert Kiepert, Berlin-Charlottenburg , 1935).
  • the object of the invention is to design the drive for a three-position switch according to the preamble of claim 1 so that it can be produced particularly efficiently and its parts allow particularly favorable storage.
  • the object is achieved according to the invention by the training specified in the characterizing part of claim 1.
  • the object of the invention has parts that occur only once, but are common to both assemblies. Furthermore, the subject of the invention also has a large number of parts which occur twice, with one part of each double being arranged in one assembly and the other part of the double being arranged in the other assembly. Due to this design and arrangement of the parts of the subject matter of the invention, the jump drive assembly is the same as the storage drive assembly.
  • the design according to the invention has the particular advantage that the switching sequences EIN-0-ERDE or ERDE-0-EIN can be carried out with the drive. This particular advantage results from the fact that the assemblies can be used either as a jump drive or as a storage drive due to their identical training.
  • the drive for an electrical three-position switch shown in the drawing includes a control shaft designated 1 and a crank lever 2 combined with the control shaft 1.
  • the drive further contains a power transmission device, which is explained in more detail below, and a hinge pin 3, which also supports the crank lever 2 connects the power transmission device.
  • the drive also contains a switching spring 4 designed as a tension spring and a switching spring 5 also designed as a tension spring.
  • pawls 8 and 9 are provided, each of which can be pivoted about a pin 12 or 13 against a spring force 10 or 11.
  • the power transmission device already mentioned consists of two four-link chains arranged symmetrically next to one another.
  • Each four-link chain has an outer link which is bent out before each switching operation and which contains an outer link 14 or 15 and a central link 16 or 17 connected to the crank lever 2 via the link pin 3.
  • Each outer joint further includes an outer member 14; 15 and the middle link 16; 17 connecting further hinge pin 18 or 19 and an outer pin 20 or 21, which is fixed on a frame 22/23 common to two four-bar chains.
  • the frame 22/23 consists of two plates, which are penetrated by the control shaft 1 and the outer bolts 2o, 21. All parts of the drive are arranged between the plates of the frame 22/23.
  • the middle links 16; 17 of the four four-link chains are united with one another by the link pin 3.
  • crank lever 2 forms an inner link common to two four-link chains.
  • the two switching springs 4; 5 are at one end at one Intermediate link 24 or 25, which in turn is articulated on the further hinge pin 18 or 19.
  • the switching springs 4; 5 can, however, also directly on the associated additional hinge pin 18; 19 attack (not shown).
  • the free ends of the switching springs 4; 5 each grip a slide 3 0 ; 31 at.
  • the free ends of the switching springs 4; 5 but not directly on the respectively assigned slide 3 0 ; 31 attached, but to an intermediate piece 32 or 33, which in turn with the respective switching spring 4; 5 is connected.
  • Each sled 3 0 ; 31 is guided in the frame 22/23 in two opposite slots.
  • On the right side of the drawing is a pair of slots with 34; Designated 35. Only one slot 36 is shown on the left side of the drawing. The slot completing the slot pair has been omitted for the sake of clarity.
  • Each sled 3 0 ; 31 is with a ratchet lock 4o; 41 provided, the function of which will be discussed later.
  • the handle 6 is divided into a power arm 6a and a load arm 6b by a pivot axis 42 fixed in the frame 22/23.
  • the load arm 6b is a crossbar at each end for moving a carriage 3 0 ; 31 trained. Both ends of the load arm 6b, which is designed as a crossbar, each have an axillary contour which corresponds to the assigned slide 3o; 31 engages.
  • the latch lock 4o; 41 of each slide 3o; 31 is arranged so that it up to a predetermined voltage of the respective switching spring 4; 5 in the swivel path of the associated pawl 8; 9 lies. After the tensioned switching spring 4; 5 the predetermined voltage and one by crossing the assigned slide 3o; 31 caused overvoltage, is the tensioned switching spring 4; 5 assigned latch lock 4o; 41, however, outside the pivoting path of the assigned pawl 8; 9.
  • each pawl 8; 9 is a driving pin 43; 44 arranged by two rod elements 45, 46; 47, 48 is flanked.
  • Each pair of rod elements 45, 46; 47, 48 is by an accessory spring 49; 5o connected to each other.
  • One rod element each from a pair of rod elements 45, 46; 47, 48 is based on a switch-off half-wave 51; 52 trained, already mentioned locking element.
  • one rod element of a pair of rod elements 45, 46; 47, 48 from a switch-on half-shaft 53; 54 trained locking element.
  • All half-waves 51-54 are arranged on an arc around the selector shaft 1 so that the two switch-off half-waves 51, 52 are flanked by the switch-on half-waves 53, 54.
  • Each switch-on half-shaft 53, 54 lies before and during a tensioning process of the switching spring 4 closest to it; 5 locking in the swivel path of the link lever 7.
  • 5 lies each switch-on half-wave 53; 54, however, outside the pivoting path of the link lever 7, namely by a of the driving pin 43; 44 of the assigned pawl 8; 9 on the assigned rod element 45; 48 exercised moment.
  • Each jack 8; 9 is with a return bolt 55; 56 provided, the driving bolt 43; 44 is opposite and a point of application for the spring force 1 0 ; 11 forms.
  • Each return bolt 55; 56 is also for pivoting back the associated pawl 8; 9 through a nose 57; 58 of the load arm 6b of the handle 6 is formed.
  • All half waves 51; 52 can be adjusted either by hand or by remote control so that they release the link lever 7.
  • selector shaft 1 with the selector spring 5 and not, as would also be possible, with the selector spring 4 should be turned suddenly into an ON position.
  • the force arm 6a of the handle 6 is pivoted to the left, the load arm 6b of the handle 6 taking the slide 31 with it and the switching spring 5 being tensioned.
  • the middle member 17 exerts a torque on the crank lever 2 via the hinge pin 3, which is pivoted to the left and the switching shaft 1 turns to the ON position.
  • crank lever 2 pivoting to the left when the selector shaft 1 is rotated bends the left outer joint 14, 16, the selector spring 4 being tensioned, the slide 3o of which, in the meantime, rests against the upper end of the slot 36.
  • the rod element 47 can also be acted upon by the armature of an electromagnet (not shown) for rotating the switch-off half-shaft 52, preferably for remote triggering.
  • Switching from 0 to EARTH takes place by swiveling the handle to the right, whereby the switching spring 4 is tensioned in the same way as the switching spring 5 previously.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switches With Compound Operations (AREA)

Abstract

1. Drive for an electric three-position switch, comprising : a switch shaft (1) a crank lever (2) combined with the switch shaft (1) a force-transmitting device a link pin (17, 18) connecting the crank lever (2) and the force-transmitting device a switch spring (4) in the form of a tension spring, and a further switch spring (5) a handle (6) an approximately hammer-shaped rocker arm (7) combined with the switch shaft (1), and a stop device consisting of a plurality of stop elements and two pawls (8, 9) which can each be rocked about a pin (12, 13) against a spring force, characterised by the features : a) the force-transmitting device consists of two four-bar chains symmetrically juxtaposed to one another, each of which comprises an outer link (14, 16; 15, 17) which is set at an angle before each switching action and consists of an outer component (14; 15), a centre component (16; 17) connected to the crank lever (2) by means of the link pin (3), and a further link pin which connects the outer component (14; 15) and the centre component (16; 17), as well as an outer pin (20; 21) which is fixedly mounted on a frame (22/23) common to the four-bar chains ; b) the centre components (16; 17) of the two four-bar chains are combined with one another by the link pin (3) ; c) the link pin (3) and the switch shaft (1) are points of articulation of the two four-bar chains ; d) the crank lever (2) is a common inner component of the two four-bar chains ; e) the further switch spring (5) is also a tension spring and is connected at one end, either directly or by means of an intermediate member (25), to the further link pin (19), while the other switch spring (4) is connected, symmetrically in relation thereto, to the other further link pin (18) ; f) the free ends of the switch springs (4; 5) each engage with a respective sliding support (30; 31) which is provided with a pawl stop (40; 41) and can be shifted in the frame (22, 23) for the purpose of tensioning the associated switch spring (4; 5) ; g) the handle (6) is divided, by a pivot pin (42) fixedly mounted in the frame (22/23), into a force arm (6a) and a load arm (6b) which is formed as a cross member at each end for shifting a sliding support (30; 31) ; h) the pawl stop (40; 41) of each sliding support (30; 31) is situated in the path of the rocking motion of the associated pawl until a predetermined tension of the associated switch spring (4; 5) is reached, but lies outside the path of the rocking motion of the associated pawl (8; 9) after the switch spring (4; 5) has reached the predetermined tension and an excess tension caused by an excess travel of the sliding support (30; 31) ; i) there is provided at one end of each pawl (8; 9) a driving pin (43; 44) which is flanked by two rod elements (45; 46; 47; 48) which are connected together by a draw spring (49; 50) and one of which extends from a stop element constructed as a circuit-opening halfshaft (51; 52), and the other from a stop element constructed as a circuit-closing half-shaft (53; 54) ; j) all the half-shafts (51 - 54) are disposed on an arc of a circle around the switch shaft (1), the two circuit-opening half-shafts (51, 52) being flanked by the circuit-closing half-shafts (53, 54) ; k) each circuit-closing half-shaft (53, 54) lies in the path of the rocking motion of the rocker arm (7) before and during a tensioning of the switch spring (4; 5) closer to it, but outside the path of the said motion at the beginning of a detensioning of the switch spring (4; 5) due to a moment of rotation (45; 48) exerted on its rod element by the driving pin (43; 44) of the associated pawl (8; 9) ; l) after detensioning of a switch spring (4; 5), its outer link (14, 16; 15, 17) occupies substantially an extended position and the switch shaft (1) occupies a circuit-closing position due to the moment of rotation exerted on the crank lever (2) by the respective centre component (16; 17) in the detensioning of the switch spring (4; 5), while the other outer link (14, 16; 15, 17) is set at an angle, the associated switch spring (4; 5) is tensioned and that circuit-opening half-shaft (51; 52) which lies closer to the detensioned switch spring (4; 5) is interlocked with the rocker arm (2) ; m) when the force arm (6a) of the handle (6) has been freed, a residual tension of the respective detensioned switch spring (4; 5) is available for cancelling the excess travel of the associated sliding support (30; 31) and available for a subsequent pawl-setting travel, at which that circuit-opening halfshaft (51; 52) which interlocks with the rocker arm (8) is rotated into a position in which it obstructs the return motion of the rocker arm (2) due to a moment of rotation imparted to it by the associated draw spring (49; 50) ; n) each pawl (8; 9) is provided with a return pin (55; 56) which is opposed to its driving pin (42; 43) and which forms a point of engagement for the spring force (10; 11), the said return pin being designed to rock the pawl (8; 9) out of its slip position by means of a lug (57; 58) on the load arm (6b) of the handle (6) ; o) each circuit-opening half-shaft (51; 52) can be actuated manually and/or by remote control.

Description

Die Erfindung bezieht sich auf einen Antrieb für einen elektrischen Dreistellungsschalter nach dem Oberbegriff des Anspruches 1.The invention relates to a drive for an electrical three-position switch according to the preamble of claim 1.

Es ist bereits ein Antrieb für einen elektrischen Dreistellungsschalter der im Oberbegriff des Anspruches 1 genannten Art bekannt. Dieser Antrieb besteht aus einer Baugruppe Sprungantrieb und einer Baugruppe Speicherantrieb. Wegen der ungleichen Funktionen unterscheiden sich die beiden Baugruppen schon in der Zahl der bei ihnen verwendeten Teile. Die Teile der einen Baugruppe sind zudem anders ausgebildet und angeordnet, als die Teile der anderen Baugruppe. Das wirkt sich zwar keineswegs ungünstig auf die Funktionsfähigkeit des Antriebes aus, ist jedoch einer rationellen Fertigung und Lagerhaltung hinderlich (DE-PS 32 39 839).A drive for an electrical three-position switch of the type mentioned in the preamble of claim 1 is already known. This drive consists of a spring drive assembly and a storage drive assembly. Because of the unequal functions, the two modules differ in the number of parts they use. The parts of one assembly are also designed and arranged differently than the parts of the other assembly. Although this in no way has an adverse effect on the functionality of the drive, it is an obstacle to efficient production and storage (DE-PS 32 39 839).

Es sind auch bei elektrischen Schaltern Federsprungwerke bekannt, die eine Viergelenkkette aufweisen, bei der ein Glied als Gestell festgelegt ist (Die Erkenntnis patentfähiger Erfindungen und ihre Darstellung in der Patentschrift von Dr.-Ing. Kurt Abraham, Verlag von Robert Kiepert, Berlin-Charlottenburg, 1935).Spring jumpers are also known in electrical switches which have a four-link chain in which a link is fixed as a frame (the knowledge of patentable inventions and their representation in the patent specification of Dr.-Ing.Kurt Abraham, publisher of Robert Kiepert, Berlin-Charlottenburg , 1935).

Aufgabe der Erfindung ist es, den Antrieb für einen Dreistellungsschalter nach dem Oberbegriff des Anspruches 1 so auszubilden, daß er besonders rationell herstellbar ist und seine Teile eine besonders günstige Lagerhaltung erlauben.The object of the invention is to design the drive for a three-position switch according to the preamble of claim 1 so that it can be produced particularly efficiently and its parts allow particularly favorable storage.

Die gestellte Aufgabe wird erfindungsgemäß durch die im kennzeichnenden Teil des Anspruches 1 angegebene Ausbildung gelöst.The object is achieved according to the invention by the training specified in the characterizing part of claim 1.

Eine zweckmäßige Aus- und Weiterbildung des Erfindungsgegenstandes ist im Anspruch 2 angegeben.Appropriate training and development of the subject matter of the invention is specified in claim 2.

Der Erfindungsgegenstand weist Teile auf, die zwar nur je einmal vorkommen, jedoch beiden Baugruppen gemeinsam sind. Ferner weist der Erfindungsgegenstand auch eine große Anzahl Teile auf, die doppelt vorkommen, wobei ein Teil jedes Doppels in der einen Baugruppe und das andere Teil des Doppels in der anderen Baugruppe angeordnet ist. Durch diese Ausbildung und Anordnung der Teile des Erfindungsgegenstandes ist die Baugruppe Sprungantrieb gleich der Baugruppe Speicherantrieb. Die erfindungsgemäße Ausbildung hat den besonderen Vorteil, daß mit dem Antrieb wahlweise die Schaltfolgen EIN-0-ERDE, oder ERDE-0-EIN ausführbar sind. Dieser besondere Vorteil ergibt sich daraus, daß die Baugruppen infolge ihrer untereinander gleichen Ausbildung wahlweise als Sprungantrieb oder als Speicherantrieb verwendbar sind.The object of the invention has parts that occur only once, but are common to both assemblies. Furthermore, the subject of the invention also has a large number of parts which occur twice, with one part of each double being arranged in one assembly and the other part of the double being arranged in the other assembly. Due to this design and arrangement of the parts of the subject matter of the invention, the jump drive assembly is the same as the storage drive assembly. The design according to the invention has the particular advantage that the switching sequences EIN-0-ERDE or ERDE-0-EIN can be carried out with the drive. This particular advantage results from the fact that the assemblies can be used either as a jump drive or as a storage drive due to their identical training.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung rein schematisch in einer perspektivischen Darstellung gezeigt.An embodiment of the invention is shown in the drawing purely schematically in a perspective view.

Zu dem in der Zeichnung dargestellten Antrieb für einen elektrischen Dreistellungsschalter gehört eine mit 1 bezeichnete Schaltwelle und ein mit der Schaltwelle 1 vereinigter Kurbelhebel 2. Der Antrieb enthält weiterhin eine Kraftübertragungseinrichtung, die weiter unten näher erläutert wird und einen Gelenkbolzen 3, der den Kurbelhebel 2 mit der Kraftübertragungseinrichtung verbindet.The drive for an electrical three-position switch shown in the drawing includes a control shaft designated 1 and a crank lever 2 combined with the control shaft 1. The drive further contains a power transmission device, which is explained in more detail below, and a hinge pin 3, which also supports the crank lever 2 connects the power transmission device.

Der Antrieb enthält ferner eine als Zugfeder ausgebildete Schaltfeder 4 und eine ebenfalls als Zugfeder ausgebildete Schaltfeder 5.The drive also contains a switching spring 4 designed as a tension spring and a switching spring 5 also designed as a tension spring.

Mit 6 ist in der Zeichnung eine Handhabe bezeichnet.6 in the drawing is a handle.

Auf dem Schalthebel 1 ist ein etwa hammerförmiger Kulissenhebel 7 befestigt, der mit Sperrelementen zusammenwirkt, die ebenfalls weiter unten näher erläutert werden.On the shift lever 1 an approximately hammer-shaped link lever 7 is fixed, which cooperates with locking elements, which are also explained in more detail below.

Ferner sind zwei Klinken 8 beziehungsweise 9 vorgesehen, die jeweils gegen eine Federkraft 1o beziehungsweise 11 um einen Zapfen 12 beziehungsweise 13 schwenkbar sind.Furthermore, two pawls 8 and 9 are provided, each of which can be pivoted about a pin 12 or 13 against a spring force 10 or 11.

Die bereits erwähnte Kraftübertragungseinrichtung besteht aus zwei symmetrisch nebeneinander angeordneten Viergelenkketten.The power transmission device already mentioned consists of two four-link chains arranged symmetrically next to one another.

Jede Viergelenkkette weist ein vor jeder Schalthandlung ausgeknicktes Außengelenk auf, das ein Außenglied 14 beziehungsweise 15 und ein über den Gelenkbolzen 3 mit dem Kurbelhebel 2 verbundenes Mittelglied 16 beziehungsweise 17 enthält. Jedes Außengelenk enthält ferner einen das Außenglied 14; 15 und das Mittelglied 16; 17 verbindenden weiteren Gelenkbolzen 18 beziehungsweise 19 sowie einen Außenbolzen 2o beziehungsweise 21, der auf einem beiden Viergelenkketten gemeinsamen Gestell 22/23 festgelegt ist.Each four-link chain has an outer link which is bent out before each switching operation and which contains an outer link 14 or 15 and a central link 16 or 17 connected to the crank lever 2 via the link pin 3. Each outer joint further includes an outer member 14; 15 and the middle link 16; 17 connecting further hinge pin 18 or 19 and an outer pin 20 or 21, which is fixed on a frame 22/23 common to two four-bar chains.

Im dargestellten Beispiel besteht das Gestell 22/23 aus zwei Platten, die von der Schaltwelle 1 und den Außenbolzen 2o, 21 durchgriffen sind. Zwischen den Platten des Gestells 22/23 sind alle Teile des Antriebes angeordnet.In the example shown, the frame 22/23 consists of two plates, which are penetrated by the control shaft 1 and the outer bolts 2o, 21. All parts of the drive are arranged between the plates of the frame 22/23.

Die Mittelglieder 16; 17 beider Viergelenkketten sind durch den Gelenkbolzen 3 miteinander vereinigt.The middle links 16; 17 of the four four-link chains are united with one another by the link pin 3.

Der Kurbelhebel 2 bildet ein beiden Viergelenkketten gemeinsames Innenglied.The crank lever 2 forms an inner link common to two four-link chains.

Die beiden Schaltfedern 4; 5 sind an einem Ende an einem Zwischenglied 24 beziehungsweise 25 eingehängt, das seinerseits an dem weiteren Gelenkbolzen 18 beziehungsweise 19 angelenkt ist. Die Schaltfedern 4; 5 können jedoch auch unmittelbar an den ihnen zugeordneten weiteren Gelenkbolzen 18; 19 angreifen (nicht dargestellt).The two switching springs 4; 5 are at one end at one Intermediate link 24 or 25, which in turn is articulated on the further hinge pin 18 or 19. The switching springs 4; 5 can, however, also directly on the associated additional hinge pin 18; 19 attack (not shown).

Die freien Endender Schaltfedern 4; 5 greifen jeweils an einem Schlitten 30; 31 an. Im dargestellten Beispiel sind die freien Enden der Schaltfedern 4; 5 jedoch nicht unmittelbar am jeweils zugeordneten Schlitten 30; 31 befestigt, sondern an einem Zwischenstück 32 beziehungsweise 33, das seinerseits mit der jeweiligen Schaltfeder 4; 5 verbunden ist.The free ends of the switching springs 4; 5 each grip a slide 3 0 ; 31 at. In the example shown, the free ends of the switching springs 4; 5 but not directly on the respectively assigned slide 3 0 ; 31 attached, but to an intermediate piece 32 or 33, which in turn with the respective switching spring 4; 5 is connected.

Jeder Schlitten 30; 31 ist im Gestell 22 /23 in zwei sich gegenüberliegenden Schlitzen geführt. Auf der rechten Seite der Zeichnung ist ein Schlitzpaar mit 34; 35 bezeichnet. Auf der linken Seite der Zeichnung ist nur ein Schlitz 36 dargestellt. Der das Schlitzpaar vervollständigende Schlitz wurde der besseren Übersicht wegen weggelassen.Each sled 3 0 ; 31 is guided in the frame 22/23 in two opposite slots. On the right side of the drawing is a pair of slots with 34; Designated 35. Only one slot 36 is shown on the left side of the drawing. The slot completing the slot pair has been omitted for the sake of clarity.

Jeder Schlitten 30; 31 ist mit einer Klinkensperre 4o; 41 versehen, auf deren Funktion später eingegangen wird.Each sled 3 0 ; 31 is with a ratchet lock 4o; 41 provided, the function of which will be discussed later.

Die Handhabe 6 ist durch eine im Gestell 22/23 festgelegte Schwenkachse 42 in einen Kraftarm 6a und einen Lastarm 6b aufgeteilt. Der Lastarm 6b ist als Querbalken an jedem Ende zum Verschieben eines Schlittens 30; 31 ausgebildet. Beide Enden des als Querbalken ausgebildeten Lastarmes 6b haben jeweils eine achselförmige Kontur, die den zugeordneten Schlitten 3o; 31 übergreift.The handle 6 is divided into a power arm 6a and a load arm 6b by a pivot axis 42 fixed in the frame 22/23. The load arm 6b is a crossbar at each end for moving a carriage 3 0 ; 31 trained. Both ends of the load arm 6b, which is designed as a crossbar, each have an axillary contour which corresponds to the assigned slide 3o; 31 engages.

Beim Schwenken des Kraftarmes 6a der Handhabe 6 aus der gezeigten Mittelstellung heraus, wird die in der Schwenkrichtung gelegene Schaltfeder 4; 5 dadurch gespannt, daß das zugeordnete Ende des Lastarmes 6b den zugeordneten Schlitten 30; 31 mitnimmt.When the power arm 6a of the handle 6 is pivoted out of the shown central position, the switching spring 4; 5 excited that the associated end of the load arm 6b the assigned Sled 3 0 ; 31 takes away.

Die Klinkensperre 4o; 41 jedes Schlittens 3o; 31 ist so angeordnet, daß sie bis zu einer vorgegebenen Spannung der jeweiligen Schaltfeder 4; 5 im Schwenkweg der zugehörigen Klinke 8; 9 liegt. Nachdem die der Spannung unterworfene Schaltfeder 4; 5 die vorgegebene Spannung und eine durch einen Überweg des zugeordneten Schlittens 3o; 31 hervorgerufene Überspannung erreicht hat, liegt die der gespannten Schaltfeder 4; 5 zugeordnete Klinkensperre 4o; 41 jedoch außerhalb des Schwenkweges der zugeordneten Klinke 8; 9.The latch lock 4o; 41 of each slide 3o; 31 is arranged so that it up to a predetermined voltage of the respective switching spring 4; 5 in the swivel path of the associated pawl 8; 9 lies. After the tensioned switching spring 4; 5 the predetermined voltage and one by crossing the assigned slide 3o; 31 caused overvoltage, is the tensioned switching spring 4; 5 assigned latch lock 4o; 41, however, outside the pivoting path of the assigned pawl 8; 9.

An einem Ende jeder Klinke 8; 9 ist ein Mitnehmerbolzen 43; 44 angeordnet, der von zwei Stabelementen 45, 46; 47, 48 flankiert ist. Jedes Stabelementpaar 45, 46; 47, 48 ist durch eine Beiholfeder 49; 5o miteinander verbunden. Jeweils ein Stabelement eines Stabelementpaares 45, 46; 47, 48 geht von einem als Ausschalthalbwelle 51; 52 ausgebildeten, bereits erwähnten Sperrelement aus. Dagegen geht jeweils ein Stabelement eines Stabelementpaares 45, 46; 47, 48 von einem als Einschalthalbwelle 53; 54 ausgebildeten Sperrelement aus.At one end of each pawl 8; 9 is a driving pin 43; 44 arranged by two rod elements 45, 46; 47, 48 is flanked. Each pair of rod elements 45, 46; 47, 48 is by an accessory spring 49; 5o connected to each other. One rod element each from a pair of rod elements 45, 46; 47, 48 is based on a switch-off half-wave 51; 52 trained, already mentioned locking element. In contrast, one rod element of a pair of rod elements 45, 46; 47, 48 from a switch-on half-shaft 53; 54 trained locking element.

Alle Halbwellen 51 - 54 sind auf einem Kreisbogen um die Schaltwelle 1 so angeordnet, daß die beiden Ausschalthalbwellen 51, 52 von den Einschalthalbwellen 53, 54 flankiert sind. Jede Einschalthalbwelle 53, 54 liegt vor- und während eines Spannvorganges der ihr am nächsten liegenden Schaltfeder 4; 5 sperrend im Schwenkweg des Kulissenhebels 7. Bei Beginn einer Entspannung der jeweiligen Schaltfeder 4; 5 liegt jede Einschalthalbwelle 53; 54 jedoch außerhalb des Schwenkweges des Kulissenhebels 7 und zwar durch ein vom Mitnehmerbolzen 43; 44 der zugeordneten Klinke 8; 9 auf das zugeordnete Stabelement 45; 48 ausgeübtes Drehmoment.All half-waves 51-54 are arranged on an arc around the selector shaft 1 so that the two switch-off half-waves 51, 52 are flanked by the switch-on half-waves 53, 54. Each switch-on half-shaft 53, 54 lies before and during a tensioning process of the switching spring 4 closest to it; 5 locking in the swivel path of the link lever 7. At the start of relaxation of the respective switching spring 4; 5 lies each switch-on half-wave 53; 54, however, outside the pivoting path of the link lever 7, namely by a of the driving pin 43; 44 of the assigned pawl 8; 9 on the assigned rod element 45; 48 exercised moment.

Nach dem Entspannen einer Schaltfeder 4; 5 nimmt deren Aussengelenk 14, 16; 15, 17 etwa eine Strecklage ein, bei der sich die Schaltwelle 1 in einer Einschaltstellung befindet. Die Einschaltstellung der Schaltwelle 1 wird dadurch erreicht, daß während des Entspannens der jeweiligen Schaltfeder 4; 5 das dieser Schaltfeder 4; 5 zugeordnete Mittelglied 16; 17 auf den Kurbelhebel 2 ein Drehmoment ausübt.After relaxing a switch spring 4; 5 takes their outer joint 14, 16; 15, 17 about a stretched position in which the selector shaft 1 is in an on position. The switch-on position of the selector shaft 1 is achieved in that while the respective switch spring 4; 5 that this switching spring 4; 5 assigned middle link 16; 17 exerts a torque on the crank lever 2.

Während das eine Außengelenk 14, 16; 17, 19 beim Entspannen der zugeordneten Schaltfeder 4; 5 in etwa in eine Strecklage übergeht, knickt jeweils das andere Außengelenk 14, 16; 17, 19 aus, wobei die zugehörige Schaltfeder 4; 5 gespannt wird. Zugleich dreht sich mit der Schaltwelle 1 der Kulissenhebel 7 so, daß er von derjenigen Ausschalthalbwelle 51; 52 sperrend hintergriffen ist, die der entspannten Schaltfeder 4; 5 am nächsten liegt.While the one outer joint 14, 16; 17, 19 when the associated switching spring 4 is released; 5 passes approximately into a stretched position, the other outer joint 14, 16 bends; 17, 19, the associated switching spring 4; 5 is excited. At the same time rotates with the control shaft 1 of the link lever 7 so that it from that switch-off half-shaft 51; 52 is locked behind, the relaxed switching spring 4; 5 is closest.

Nach erfolgtem Schaltvorgang ist eine Restspannung der jeweils entspannten Schaltfeder 4; 5 bei freigegebenem Kraftarm 6a der Handhabe 6 frei, um den Überweg des der entspannten Schaltfeder 4; 5 zugeordneten Schlittens 30; 31 aufzuheben. Durch die jeweilige Klinkensperre 4o; 41 wird dabei die der jeweils entspannten Schaltfeder 4; 5 zugeordneten Klinke 8; 9 endgültig in ihre Sperrlage gesetzt, wonach die den Kulissenhebel 7 hintergreifende Ausschaltwelle 51; 52,durch ein von der zugeordneten Beiholfeder 49; 5o erteiltes Drehmoment,sperrend in den Rückweg des Kulissenhebels 7 gedreht ist.After the switching process, there is a residual voltage of the relaxed switching spring 4; 5 when the power arm 6a of the handle 6 is released, so that the relaxed switching spring 4; 5 assigned slide 3 0 ; 31 to cancel. Through the respective latch lock 4o; 41 is that of the relaxed switching spring 4; 5 assigned jack 8; 9 finally placed in its locked position, after which the switching lever 7 engaging the switch-off shaft 51; 52, by one of the associated accessory spring 49; 5o granted torque, is locked in the return path of the link lever 7.

Jede Klinke 8; 9 ist mit einem Rückführbolzen 55; 56 versehen, der dem Mitnehmerbolzer 43; 44 entgegengesetzt ist und eine Angriffsstelle für die Federkraft 10; 11 bildet. Jeder Rückführbolzen 55; 56 ist ferner zum Rückschwenken der zugeordneten Klinke 8; 9 durch eine Nase 57; 58 des Lastarmes 6b der Handhabe 6 ausgebildet.Each jack 8; 9 is with a return bolt 55; 56 provided, the driving bolt 43; 44 is opposite and a point of application for the spring force 1 0 ; 11 forms. Each return bolt 55; 56 is also for pivoting back the associated pawl 8; 9 through a nose 57; 58 of the load arm 6b of the handle 6 is formed.

Alle Halbwellen 51; 52 können entweder von Hand oder per Fernauslösung so verstellt werden, daß sie den Kulissenhebel 7 freigeben.All half waves 51; 52 can be adjusted either by hand or by remote control so that they release the link lever 7.

Wirkungsweise:Mode of action:

Es sei angenommen, daß sich die Handhabe 6 in der gezeichneten Stellung befindet, in der die Schaltwelle 1 eine Stellung 0 einnimmt und beide Außengelenke 14, 16; 17, 19, wie dargestellt, ausgeknickt sind.It is assumed that the handle 6 is in the position shown, in which the selector shaft 1 assumes a position 0 and both outer joints 14, 16; 17, 19, as shown, are buckled.

Es sei ferner angenommen, daß die Schaltwelle 1 mit der Schaltfeder 5 und nicht, wie das ebenso möglich wäre, mit der Schaltfeder 4 sprunghaft in eine Stellung EIN gedreht werden soll. Zu diesem Zweck wird der Kraftarm 6a der Handhabe 6 nach links geschwenkt, wobei der Lastarm 6b der Handhabe 6 den Schlitten 31 mitnimmt und die Schaltfeder 5 gespannt wird.It is further assumed that the selector shaft 1 with the selector spring 5 and not, as would also be possible, with the selector spring 4 should be turned suddenly into an ON position. For this purpose, the force arm 6a of the handle 6 is pivoted to the left, the load arm 6b of the handle 6 taking the slide 31 with it and the switching spring 5 being tensioned.

Solange die Klinkensperre 41 des Schlittens 31 an der Klinke 9 anliegt, ist der Schwenkweg des Kulissenhebels 7 durch die Einschalthalbwelle 54 gesperrt. Zugleich ist auch jede Bewegung der beiden Außengelenke 14, 16 und 17; 18 gesperrt, so daß das am Zwischenglied 25 eingehängte Ende der Schaltfeder 5 festgehalten ist.As long as the pawl lock 41 of the slide 31 bears against the pawl 9, the pivoting path of the link lever 7 is blocked by the switch-on half shaft 54. At the same time, any movement of the two outer joints 14, 16 and 17; 18 locked so that the end of the switching spring 5 suspended on the intermediate member 25 is held.

Wenn jedoch die Klinkensperre 41 die Klinke 9 nach einem geringen Überhub verläßt, wird die Klinke 9 durch die am Rückführbolzen 56 angreifende Federkraft 11 um den Zapfen 13 in den Rückweg der Klinkensoerre 41 geschwenkt, so daß der Schlitten 31 gegen Rückschub gesperrt ist.However, if the pawl lock 41 leaves the pawl 9 after a slight overstroke, the pawl 9 is pivoted by the spring force 11 acting on the return bolt 56 around the pin 13 into the return path of the pawl lock 41 so that the carriage 31 is locked against pushing back.

Durch die Schwenkbewegung der Klinke 9 wird mit deren Mitnehmerbolzen 44 über das Stabelement 48 auf die Einschalthalbwelle 54 ein Drehmoment ausgeübt, unter welchem die Einschalthalbwelle 54 aus dem Schwenkweg des Kulissenhebels 7 gelangt.Due to the pivoting movement of the pawl 9, a torque is exerted on the switch-on half-shaft 54 by means of its driver bolt 44 via the rod element 48, under which the switch-on half-shaft 54 comes out of the pivoting path of the link lever 7.

Mit der Freigabe des Kulissenhebels 7 wird die Kraft der Schaltfeder 5 frei, die nun das über ihr befindliche Aussengelenk 15, 17 sprunghaft in eine angenäherte, jedoch nicht dargestellte Strecklage einknickt.With the release of the link lever 7, the force of the switching spring 5 is released, which now suddenly buckles the outer joint 15, 17 located above it into an approximate, but not shown, extended position.

Das Mittelglied 17 übt dabei über den Gelenkbolzen 3 ein Drehmoment auf den Kurbelhebel 2 aus, der nach links geschwenkt wird und die Schaltwelle 1 sprunghaft in die Stellung EIN dreht.The middle member 17 exerts a torque on the crank lever 2 via the hinge pin 3, which is pivoted to the left and the switching shaft 1 turns to the ON position.

Der beim Drehen der Schaltwelle 1 nach links schwenkende Kurbelhebel 2 knickt das linke Außengelenk 14, 16 aus, wobei die Schaltfeder 4 gespannt wird, deren Schlitten 3o währenddessen am oberen Ende des Schlitzes 36 anliegt.The crank lever 2 pivoting to the left when the selector shaft 1 is rotated bends the left outer joint 14, 16, the selector spring 4 being tensioned, the slide 3o of which, in the meantime, rests against the upper end of the slot 36.

Mit der sprunghaft nach links drehenden Schaltwelle 1 schwenkt der Kulissenhebel 7 nach rechts. Dabei ist die Ausschalthalbwelle 52 solange gegen Drehen gesperrt, wie der Kulissenhebel 7 über sie hinweggleitet. Gleichwohl steht die Ausschalthalbwelle 62 währenddessen unter einem Drehmoment, das von der Beiholfeder 5o auf ihr Stabelement 47 ausgeübt wird. Die für das Drehmoment erforderliche Spannung der Beiholfeder 5o wurde zuvor dadurch erzeugt, daß sich die Klinkensperre 41 unter der Restspannung der Schaltfeder 5 an die in ihrem Rückweg liegende Klinke 9 anlegte und diese veranlaßte, den schon genannten Setzweg zurückzulegen.With the shift shaft 1 suddenly turning to the left, the link lever 7 pivots to the right. The switch-off half-shaft 52 is locked against rotation as long as the link lever 7 slides over it. Nevertheless, the switch-off half-shaft 62 is in the meantime under a torque which is exerted on the rod element 47 by the auxiliary spring 50. The voltage required for the torque of the auxiliary spring 5o was previously generated by the pawl lock 41 applying to the pawl 9 lying in its return path under the residual tension of the switching spring 5 and causing the latter to cover the setting path already mentioned.

In der Stellung, in der der Kulissenhebel 7 die Ausschaltklinke 52 hintergreift, wird diese unter dem vorstehend beschriebenen Drehmoment in den Rückweg des Kulissenhebels 7 geschwenkt, wodurch die Spannung der Schaltfeder 4 arretiert ist. Diese Spannung ist geringer als die vorherige Spannung der Schaltfeder 5, aber ausreichend für die folgende Schalthandlung.In the position in which the link lever 7 engages behind the switch-off pawl 52, this is under the above described torque pivoted into the return path of the link lever 7, whereby the tension of the switching spring 4 is locked. This voltage is lower than the previous voltage of the switching spring 5, but sufficient for the following switching operation.

Soll nun die Schaltwelle 1 in die Stellung 0 zurückgedreht werden, so ist der Rückschwenkweg des Kulissenhebels 7 durch die Ausschalthalbwelle 52 freizugeben. Das hierfür auszuübende Drehmoment kann durch Rückstellung der Handhabe 6 aufgebracht werden. Hierbei schwenkt die Nase 58 über den Rückführbolzen 56 die Klinke 9 um den Zapfen 13 entgegen der Federkraft 11. Auf dem Schwenkweg der Klinke 9 nimmt deren Mitnehmerbolzen 44 das Stabelement 47 mit, wodurch die Ausschalthalbwelle 52 aus dem Schwenkweg des Kulissenhebels 7 gedreht wird.If the selector shaft 1 is now to be turned back to the 0 position, the pivoting-back path of the link lever 7 must be released by the switch-off half-shaft 52. The torque to be exerted for this can be applied by resetting the handle 6. Here, the nose 58 pivots the pawl 9 about the pin 13 against the spring force 11 via the return bolt 56.

Das Stabelement 47 kann auch zum Drehen der Ausschalthalbwelle 52,vorzugsweise für eine Fernauslösung, von dem Anker eines Elektromagneten beaufschlagt werden (nicht dargestellt).The rod element 47 can also be acted upon by the armature of an electromagnet (not shown) for rotating the switch-off half-shaft 52, preferably for remote triggering.

Mit dem beim Drehen der Ausschalthalbwelle 52 einhergehenden Schwenken des Stabelementes 47 wird die Beiholfeder 5o gespannt, während der Kulissenhebel 7 ein Drehen der Einschalthalbwelle 54 blockiert. Sobald jedoch der Kulissenhebel 7 auf seinem Schwenkweg die Einschalthalbwelle 54 freigibt, zieht die Beiholfeder 5o das Stabelement 48 in Richtung des Stabelementes 47, wodurch die Einschalthalbwelle 54 in die dargestellte Stellung gedreht wird.With the accompanying pivoting of the rod element 47 when the switch-off half-shaft 52 is rotated, the auxiliary spring 5o is tensioned, while the link lever 7 blocks rotation of the switch-on half-shaft 54. However, as soon as the link lever 7 releases the switch-on half-shaft 54 on its pivoting path, the auxiliary spring 50 pulls the rod element 48 in the direction of the rod element 47, as a result of which the switch-on half-shaft 54 is rotated into the position shown.

Die Schaltung von 0 nach ERDE erfolgt durch Schwenken der Handhabe nach rechts, wobei die Schaltfeder 4 in gleicher Weise gespannt wird, wie zuvor die Schaltfeder 5.Switching from 0 to EARTH takes place by swiveling the handle to the right, whereby the switching spring 4 is tensioned in the same way as the switching spring 5 previously.

BezugszeichenlisteReference symbol list

  • 1 = Schaltwelle1 = selector shaft
  • 2 ± Kurbelhebel2 ± crank lever
  • 3 = Gelenkbolzen3 = hinge pin
  • 4 = Schaltfeder4 = switching spring
  • 5 = Schaltfeder5 = switching spring
  • 6 = Handhabe - 6a = Kraftarm - 6b = Lastarm6 = handle - 6a = power arm - 6b = load arm
  • 7 = Kulissenhebel7 = link lever
  • 8 = Klinke8 = jack
  • 9 = Klinke9 = jack
  • 10 = Federkraft10 = spring force
  • 11 = Federkraft11 = spring force
  • 12 = Zapfen12 = pin
  • 13 = Zapfen13 = pin
  • 14 = Außenglied14 = outer link
  • 15 = Außenglied15 = outer link
  • 16 = Mittelglied16 = middle link
  • 17 = Mittelglied17 = middle link
  • 18 = weiterer Gelenkbolzen18 = additional hinge pin
  • 19 = weiterer Gelenkbolzen19 = additional hinge pin
  • 20 = Außenbolzen20 = outer bolt
  • 21 = Außenbolzen21 = outer bolt
  • 22/23 Gestell22/23 frame
  • 24 = Zwischenglied24 = intermediate link
  • 25 = Zwischenglied25 = pontic
  • 30 = Schlitten30 = sledge
  • 31 = Schlitten31 = sledge
  • 32 = Zwischenstück32 = intermediate piece
  • 33 = Zwischenstück33 = intermediate piece
  • 34 = Schlitz34 = slot
  • 35 = Schlitz35 = slot
  • 36 = Schlitz36 = slot
  • 40 = Klinkensperre40 = ratchet lock
  • 41 = Klinkensperre41 = ratchet lock
  • 42 = Schwenkachse42 = swivel axis
  • 43 = Mitnehmerbolzen43 = drive pin
  • 44 = Mitnehmerbolzen44 = drive pin
  • 45 = Stabelement45 = bar element
  • 46 = Stabelement46 = bar element
  • 47 = Stabelement47 = bar element
  • 48 = Stabelement48 = bar element
  • 49 = Beiholfeder49 = accessory spring
  • 50 = Beiholfeder50 = accessory spring
  • 51 = Ausschalthalbwelle51 = switch-off half-wave
  • 52 = Ausschalthalbwelle52 = switch-off half-wave
  • 53 = Einschalthalbwelle53 = switch-on half-wave
  • 54 = Einschalthalbwelle54 = switch-on half-wave
  • 55 Rückführbolzen55 return bolts
  • 56 = Rückführbolzen56 = return bolt
  • 57 = Nase57 = nose
  • 58 = Nase58 = nose
BezugszeichenlisteReference symbol list

  • 1 = Schaltwelle1 = selector shaft
  • 2 = Kurbelhebel2 = crank lever
  • 3 = Gelenkbolzen3 = hinge pin
  • 4 = Schaltfeder4 = switching spring
  • 5 = Schaltfeder5 = switching spring
  • 6 = Handhabe - 6a = Kraftarm - 6b = Lastarm6 = handle - 6a = power arm - 6b = load arm
  • 7 = Kulissenhebel7 = link lever
  • 8 = Klinke8 = jack
  • 9 = Klinke9 = jack
  • 10 = Federkraft10 = spring force
  • 11 Federkraft11 spring force
  • 12 = Zapfen12 = pin
  • 13 = Zapfen13 = pin
  • 14 Außenglied14 outer link
  • 15 Außenglied15 outer link
  • 16 = Mittelglied16 = middle link
  • 17 Mittelglied17 middle link
  • 18 = weiterer Gelenkbolzen18 = additional hinge pin
  • 19 = weiterer Gelenkbolzen19 = additional hinge pin
  • 2o Außenbolzen2o outer bolts
  • 21 = Außenbolzen21 = outer bolt
  • 22/23 Gestell22/23 frame
  • 24 = Zwischenglied24 = intermediate link
  • 25 = Zwischenglied25 = pontic
  • 30 = Schlitten30 = sledge
  • 31 = Schlitten31 = sledge
  • 32 = Zwischenstück32 = intermediate piece
  • 33 = Zwischenstück33 = intermediate piece
  • 34 = Schlitz34 = slot
  • 35 = Schlitz35 = slot
  • 36 = Schlitz36 = slot
  • 40 = Klinkensperre40 = ratchet lock
  • 41 = Klinkensperre41 = ratchet lock
  • 42 = Schwenkachse42 = swivel axis
  • 43 = Mitnehmerbolzen43 = drive pin
  • 44 = Mitnehmerbolzen44 = drive pin
  • 45 = Stabelement45 = bar element
  • 46 = Stabelement46 = bar element
  • 47 = Stabelement47 = bar element
  • 48 = Stabelement48 = bar element
  • 49 = Beiholfeder49 = accessory spring
  • 50 = Beiholfeder50 = accessory spring
  • 51 = Ausschalthalbwelle51 = switch-off half-wave
  • 52 = Ausschalthalbwelle52 = switch-off half-wave
  • 53 = Einschalthalbwelle53 = switch-on half-wave
  • 54 = Einschalthalbwelle54 = switch-on half-wave
  • 55 Rückführbolzen55 return bolts
  • 56 = Rückführbolzen56 = return bolt
  • 57 = Nase57 = nose
  • 58 = Nase58 = nose

Claims (2)

1. - Antrieb für einen elektrischen Dreistellungsschalter, - mit einer Schaltwelle, - einem mit der Schaltwelle vereinigten Kurbelhebel, - einer Kraftübertragungseinrichtung - einem den Kurbelhebel und die Kraftübertragungseinrichtung verbindenden Gelenkbolzen, - einer als Zugfeder ausgebildeten Schaltfeder und einer weiteren Schaltfeder, - einer Handhabe, - einem mit der Schaltwelle vereinigten, etwa hammerförmigen Kulissenhebel und einer Sperreinrichtung, bestehend aus mehreren Sperrelementen sowie zwei Klinken, die jeweils gegen eine Federkraft um einen Zapfen schwenkbar sind,
gekennzeichnet durch die Merkmale: a) die Kraftübertragungseinrichtung besteht aus zwei symmetrisch nebeneinander angeordneten Viergelenkketten, die jeweils ein vor jeder Schalthandlung ausgeknicktes Außengelenk (14,16; 15,17) aufweisen, das aus einem Außenglied (14;15), einem über den Gelenkbolzen (3) mit dem Kurbelhebel (2) verbundenen Mittelglied (16;17) und einem das Aussenglied (14;15) und das Mittelglied (16;17) verbindenden weiteren Gelenkbolzen sowie einem Außenbolzen (2o;21) besteht, der auf einem beiden Viergelenkketten gemeinsamen Gestell (22/23) festgelegt ist; b) die Mittelglieder (16;17) beider Viergelenkketten sind durch den Gelenkbolzen (3) miteinander vereinigt; c) der Gelenkbolzen (3) und die Schaltwelle (1) sind Gelenkstellen beider Viergelenkketten; d) der Kurbelhebel (2) ist gemeinsames Innenglied beider Viergelenkketten; e) auch die weitere Schaltfeder (5) ist eine Zugfeder und ist an einem Ende entweder direkt oder über ein Zwischenglied (25) mit dem weiteren Gelenkbolzen (19) verbunden, während die andere Schaltfeder (4) symmetrisch dazu mit dem anderen weiteren Gelenkbolzen (18) verbunden ist; f) die freien Enden der Schaltfedern (4;5) greifen jeweils an einem Schlitten (3o;31) an, der mit einer Klinkensperre (4o;41) versehen und zum Spannen der zugeordneten Schaltfeder (4;5) im Gestell (22/23) verschiebbar ist; g) die Handhabe (6) ist durch eine im Gestell (22/23) festgelegte Schwenkachse (42) in einen Kraftarm (6a) und einen Lastarm (6b) aufgeteilt, der als Querbalken an jedem Ende zum Verschieben eines Schlittens (30;31) ausgebildet ist; h) die Klinkensperre (4o;41) jedes Schlittens (30;31) liegt bis zum Erreichen einer vorgegebenen Spannung der zugeordneten Schaltfeder (4;5) im Schwenkweg, nachdem die Schaltfeder (4;5) jedoch die vorgegebene Spannung und eine durch einen Überweg des Schlittens (3o;31) verursachte Überspannung erreicht hat, außerhalb des Schwenkweges der zugeordneten Klinke (8;9); i) an einem Ende jeder Klinke (8;9) ist ein Mitnehmerbolzen (43;44) angeordnet, der von zwei Stabelementen (45;46, 47;48) flankiert ist, die durch eine Beiholfeder (49;5o) miteinander verbunden sind und von denen eines von einem als Ausschalthalbwelle (51;52) ausgebildeten Sperrelement und das andere von einem als Einschalthalbwelle (53;54) ausgebildeten Sperrelement ausgeht; j) alle Halbwellen (51-54) sind auf einem Kreisbogen um die Schaltwelle (1) angeordnet, wobei die beiden Ausschalthalbwellen (51,52) von den Einschalthalbwellen (53,54) flankiert sind; k) jede Einschalthalbwelle (53,54) liegt vor- und während eines Spannvorganges der ihr nächst gelegenen Schaltfeder (4;5) im Schwenkweg, bei Beginn einer Entspannung der Schaltfeder (4;5) jedoch durch ein vom Mitnehmerbolzen (43;44) der zugeordneten Klinke (8;9) auf ihr Stabelement ausgeübtes Drehmoment (45;48) außerhalb des Schwenkweges des Kulissenhebels (7); 1) nach Entspannen einer Schaltfeder (4;5) nimmt dessen Außengelenk (14,16; 15,17) etwa eine Strecklage und die Schaltwelle (1) durch das beim Entspannen der Schaltfeder (4;5) von dem jeweiligen Mittelglied (16;17) auf den Kurbelhebel (2) ausgeübte Drehmoment eine Einschaltstellung ein, während das andere Außengelenk (14,16; 15,17) ausgeknickt, die zugehörige Schaltfeder (4;5) gespannt und der Kulissenhebel (2) von derjenigen Ausschalthalbwelle (51;52) hintergriffen ist, die der entspannten Schaltfeder (4;5) am nächsten liegt; m) eine Restspannung der jeweils entspannten Schaltfeder (4;5) ist bei freigegebenem Kraftarm (6a) der Handhabe (6) frei für ein Aufheben des Überweges des zugeordneten Schlittens (3o;31) und frei für einen anschließenden Klinken-Setzweg, bei dem die den Kulissenhebel (8) hintergreifende Ausschalthalbwelle (51;52) durch ein ihr von der zugeordneten Beiholfeder (49;5o) erteiltes Drehmoment sperrend in den Rückweg des Kulissenhebels (2) gedreht ist; n) jede Klinke (8;9) ist mit einem ihrem Mitnehmerbolzen (42;43) entgegengesetzten und eine Angriffsstelle für die Federkraft (10;11) bildenden Rückführbolzen (55;56) versehen, der zum Ausschwenken der Klinke (8;9) aus ihrer Sperrstellung durch eine Nase (57;58) des Lastarmes (6b) der Handhabe (6) ausgebildet ist; o) jede Ausschalthalbwelle (51;52) ist von Hand und/oder durch Ferbedienung betätigbar. 1. - drive for an electrical three-position switch, - with a control shaft, - a crank lever combined with the selector shaft, - A power transmission device a hinge pin connecting the crank lever and the power transmission device, a switching spring designed as a tension spring and a further switching spring, - a handle, a combined with the selector shaft, approximately hammer-shaped link lever and a locking device consisting of several locking elements and two pawls, each of which can be pivoted against a spring force about a pin,
characterized by the features: a) the power transmission device consists of two symmetrically arranged four-link chains, each having an outer joint (14, 16; 15, 17) bent before each switching operation, which consists of an outer link (14; 15), one via the hinge pin (3) with the Crank lever (2) connected middle link (16; 17) and a further hinge pin connecting the outer link (14; 15) and the middle link (16; 17) and an outer pin (2o; 21) which is on a frame common to both four-link chains (22 / 23) is set; b) the middle links (16; 17) of both four-link chains are united by the link pin (3); c) the hinge pin (3) and the selector shaft (1) are hinge points of both four-bar chains; d) the crank lever (2) is a common inner link of both four-link chains; e) the further switching spring (5) is a tension spring and is connected at one end either directly or via an intermediate member (25) to the further hinge pin (19), while the other switching spring (4) is symmetrical with the other further hinge pin ( 18) is connected; f) the free ends of the switching springs (4; 5) each engage a slide (3o; 31) which is provided with a pawl lock (4o; 41) and for tensioning the associated switching spring (4; 5) in the frame (22 / 23) is displaceable; g) the handle (6) is divided by a pivot axis (42) fixed in the frame (22/23) into a power arm (6a) and a load arm (6b) which acts as a crossbar at each end for moving a slide (30; 31 ) is trained; h) the pawl lock (4o; 41) of each carriage (30; 31) lies in the swivel path until a predetermined tension of the associated switching spring (4; 5) is reached, after the switching spring (4; 5) the predetermined tension and one by one Crossing of the slide (3o; 31) caused overvoltage, outside the pivoting path of the associated pawl (8; 9); i) at one end of each pawl (8; 9) a driver pin (43; 44) is arranged, which is flanked by two rod elements (45; 46, 47; 48) which are connected to each other by an auxiliary spring (49; 5o) and one of which originates from a blocking element designed as a switch-off half-shaft (51; 52) and the other from a blocking element designed as a switch-on half-shaft (53; 54); j) all half-waves (51-54) are arranged on a circular arc around the selector shaft (1), the two switch-off half-waves (51,52) being flanked by the switch-on half-waves (53,54); k) each switch-on half-shaft (53, 54) is in the swivel path before and during a tensioning process of the switching spring (4; 5) closest to it, but at the start of relaxation of the switching spring (4; 5) by means of a driving pin the associated pawl (8; 9) exerted on its rod element torque (45; 48) outside the pivoting path of the link lever (7); 1) after releasing a switching spring (4; 5), its outer joint (14, 16; 15, 17) takes approximately an extended position and the selector shaft (1) by the respective central link (16; 17) a torque is exerted on the crank lever (2), while the other outer joint (14, 16; 15, 17) is buckled, the associated switching spring (4; 5) is tensioned and the link lever (2) is detached from the half shaft (51; 52) is engaged which is closest to the relaxed switching spring (4; 5); m) a residual tension of the respective relaxed switching spring (4; 5) is free with released power arm (6a) of the handle (6) for lifting the overlap of the assigned slide (3o; 31) and free for a subsequent pawl setting path, in which the shut-off half-shaft (51; 52) engaging behind the link lever (8) is turned into a blocking manner in the return path of the link lever (2) by a torque given by the associated accessory spring (49; 5o); n) each pawl (8; 9) is ver with a driving pin (42; 43) opposite and an engagement point for the spring force (1 0 ; 11) forming return pin (55; 56) see, which is designed to pivot the pawl (8; 9) out of its locked position through a nose (57; 58) of the load arm (6b) of the handle (6); o) each switch-off half-wave (51; 52) can be operated by hand and / or by remote control. 2. Antrieb nach Anspruch 1, dadurch gekennzeichnet, daß das Gestell (22/23) aus zwei Platten besteht, zwischen denen alle Antriebsteile angeordnet sind.2. Drive according to claim 1, characterized in that the frame (22/23) consists of two plates, between which all drive parts are arranged.
EP86110816A 1985-08-19 1986-08-05 Operating mechanism for an electric switch with three positions Expired EP0212427B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110816T ATE43749T1 (en) 1985-08-19 1986-08-05 DRIVE FOR AN ELECTRIC THREE-POSITION SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3529617 1985-08-19
DE3529617 1985-08-19

Publications (2)

Publication Number Publication Date
EP0212427A1 true EP0212427A1 (en) 1987-03-04
EP0212427B1 EP0212427B1 (en) 1989-05-31

Family

ID=6278824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110816A Expired EP0212427B1 (en) 1985-08-19 1986-08-05 Operating mechanism for an electric switch with three positions

Country Status (3)

Country Link
EP (1) EP0212427B1 (en)
AT (1) ATE43749T1 (en)
DE (1) DE3663760D1 (en)

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Publication number Priority date Publication date Assignee Title
CN110406819A (en) * 2019-08-21 2019-11-05 贵州航天智慧农业有限公司 A kind of breaking device for floating plate Anti-tilt system
CN112002591A (en) * 2020-08-17 2020-11-27 赫兹曼电力（广东）有限公司 Three-station operating mechanism
CN112002590A (en) * 2020-08-17 2020-11-27 赫兹曼电力（广东）有限公司 Energy storage driving device and three-station operating mechanism applying same
CN113748476A (en) * 2019-03-29 2021-12-03 西门子股份公司 Spring system for a drive system having a coupling, spring system having a coupling, drive system having a coupling and a spring system, and switching installation having such a drive system

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CN113871244B (en) * 2021-08-13 2023-09-01 天津平高智能电气有限公司 Three-station operating mechanism and three-station switch

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GB794191A (en) * 1954-10-01 1958-04-30 English Electric Co Ltd Improvements in and relating to electric switches
DE1540089A1 (en) * 1965-08-19 1969-08-21 Licentia Gmbh Device for actuating switching shafts
DE3239839C1 (en) * 1982-10-27 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Drive for an electrical three position switch
US4446343A (en) * 1982-09-14 1984-05-01 Westinghouse Electric Corp. Switch mechanism for transformer

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Publication number Priority date Publication date Assignee Title
GB794191A (en) * 1954-10-01 1958-04-30 English Electric Co Ltd Improvements in and relating to electric switches
DE1540089A1 (en) * 1965-08-19 1969-08-21 Licentia Gmbh Device for actuating switching shafts
US4446343A (en) * 1982-09-14 1984-05-01 Westinghouse Electric Corp. Switch mechanism for transformer
DE3239839C1 (en) * 1982-10-27 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Drive for an electrical three position switch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113748476A (en) * 2019-03-29 2021-12-03 西门子股份公司 Spring system for a drive system having a coupling, spring system having a coupling, drive system having a coupling and a spring system, and switching installation having such a drive system
CN113811970A (en) * 2019-03-29 2021-12-17 西门子股份公司 Coupling, spring system, drive system with coupling and spring system, and switchgear with such a drive system
CN110406819A (en) * 2019-08-21 2019-11-05 贵州航天智慧农业有限公司 A kind of breaking device for floating plate Anti-tilt system
CN112002591A (en) * 2020-08-17 2020-11-27 赫兹曼电力（广东）有限公司 Three-station operating mechanism
CN112002590A (en) * 2020-08-17 2020-11-27 赫兹曼电力（广东）有限公司 Energy storage driving device and three-station operating mechanism applying same
CN112002591B (en) * 2020-08-17 2022-08-26 赫兹曼电力（广东）有限公司 Three-station operating mechanism
CN112002590B (en) * 2020-08-17 2022-10-28 赫兹曼电力（广东）有限公司 Energy storage driving device and three-station operating mechanism applying same

Also Published As

Publication number Publication date
ATE43749T1 (en) 1989-06-15
EP0212427B1 (en) 1989-05-31
DE3663760D1 (en) 1989-07-06

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