EP3182433A1 - Device for guiding a spring in a control mechanism and electrical protection apparatus including it - Google Patents

Device for guiding a spring in a control mechanism and electrical protection apparatus including it Download PDF

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Publication number
EP3182433A1
EP3182433A1 EP16188897.9A EP16188897A EP3182433A1 EP 3182433 A1 EP3182433 A1 EP 3182433A1 EP 16188897 A EP16188897 A EP 16188897A EP 3182433 A1 EP3182433 A1 EP 3182433A1
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EP
European Patent Office
Prior art keywords
connecting rods
axes
rods
spring
oblong
Prior art date
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Granted
Application number
EP16188897.9A
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German (de)
French (fr)
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EP3182433B1 (en
Inventor
Florent COLLAS
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP3182433A1 publication Critical patent/EP3182433A1/en
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    • 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
    • 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
    • H01H3/3005—Charging means
    • 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 present invention relates to a device for guiding a spring belonging to a control mechanism, this device comprising two rods able to slide relative to one another and being connected in a manner articulated respectively to two axes, one of which at least is mechanically connected to an operating shaft, and a compression spring supported by its two opposite ends respectively on the two aforementioned axes.
  • Such guiding devices are known used for guiding compression springs whose function is either to provide additional assistance for adding power and speed to the operation by a user of an output shaft of the mechanism. or actuating an operating device in place of a user by arming the spring by compression of the latter followed by a sudden decompression of the spring producing the actuation of the output device / drive.
  • such a subassembly can be mounted between two axes respectively belonging to two maneuvering cranks of two shafts, or between an operating crank pin and a fixed axis.
  • a spring guiding device consisting in using two guiding bases sliding relative to one another, these two bases being respectively articulately supported on two axes mechanically connected to two cranks.
  • the spring is mounted around the two aforementioned bases and is respectively supported by its two opposite ends respectively on these two bases.
  • these two bases Due to the reduced size of the two bases, these two bases have a reduced overlap area during the decompressed state of the spring, which can cause jamming by jamming between the two bases.
  • the guiding device may exhibit during a high number of operations, a wear which leads to an arching of the guide assembly, thus preventing further maneuvering.
  • the present invention solves these problems and proposes a spring guiding device preventing the occurrence of bracing phenomenon between the sliding parts relative to each other, even in the case where this mechanism has a running stroke. important in a small footprint
  • Another object of the present invention is to propose such a guiding device, this device being insensitive to the environment.
  • this device comprises two tubular bases mounted around respectively the two opposite ends of the two sets of connecting rods, said bases being supported by one of their face respectively on the two axes and serving as a spring support surface. , by a face opposite to the previous one.
  • these sliding guide means of the two connecting rods comprise two cylindrical spacers each trapped in a slot of oblong shape and an orifice respectively provided in the two connecting rods, the two slots being respectively facing the two orifices.
  • these sliding guide means of the two connecting rods comprise an intermediate piece forming a shoe interposed between the two connecting rods, and a guide surface provided on the surface. internal sliding bases cooperating with a corresponding appropriate shape of the outer surface of the two connecting rods.
  • the rods have in cross section, a half-moon shape cooperating with a corresponding shape of the inner surface of the bases.
  • the present invention further relates to an electrical protection apparatus comprising a spring guide device having the aforementioned features taken alone or in combination.
  • this apparatus is a medium voltage switch-disconnector.
  • this device is intended to be placed between two shafts 2,3 respectively called shaft switch and earth disconnector shaft.
  • each shaft is equipped with a double crank 4,5, each of the two elements 4a, 4b; 5a, 5b of the double crank having a planar surface extending in a plane substantially perpendicular to the axis of rotation of the shafts 2,3.
  • cranks 4,5 On each of these cranks 4,5 is mounted an axis 6,7 extending in a direction substantially perpendicular to the plane of said corresponding crank, said pins 6,7 being intended to cooperate with a set of two connecting rods 8,9, so called link, said rods being mechanically connected by their two opposite ends to said two axes of the cranks 4,5.
  • a so-called compression spring 1 is mounted around the rods 8, 9 supported by one of its ends on one of the cranks 4 via a so-called first base 11, which is supported by the one of its faces 11a, on the corresponding axis 6, at a location between the two crank members 4a, 5a, and at its opposite end 1b, on the other 5 of the cranks, via a second base 12 bears on the axis 7 associated with this crank, between the two elements 5a, 5b of this crank.
  • the bases 11,12 comprise for this purpose two notches 13,14 intended to cooperate respectively with two recesses 15,16 provided on the corresponding axis 6,7.
  • This device also comprises, associated with each of the bases, two metallic support washers 17, 18 intended to be interposed each between a bearing face 11b, 12b of the base and the corresponding end of the spring 1.
  • each connecting rod comprises at one of its ends, a closed eyelet or oblong orifice 20, and at its opposite end, an eyelet or open oblong orifice 21, these two oblong orifices being intended to cooperate each with the axis 6.7 located on the side of said orifice, this axis being different for each orifice.
  • the bases 11,12 bear on the corresponding axes 6,7 between the two crank elements 4a, 4b; 5a, 5b and the rods cooperate with the axis portions located between the two aforementioned recesses 15,16 provided on the corresponding axis.
  • the guiding device comprises means for allowing the sliding guide of the two connecting rods relative to each other while maintaining a certain functional clearance between the two connecting rods.
  • these two rods are made of a metallic material and are held at a certain clearance relative to one another by two sets each comprising a rivet 22 and a spacer 23, said rivet 22 and said spacer 23 passing through an oblong opening 24 provided in one of the rods and an orifice 25 provided in the other of the rods so as to allow relative sliding between these two rods by displacement of the spacer inside the groove, the functional clearance between these two connecting rods being guaranteed by the presence of the spacers.
  • the two bases are made of plastic, this base having the function of putting the spring in abutment on the axis and the centering of the spring relative to the two connecting rods.
  • the two connecting rods 8, 9 are firstly fixed relative to one another by means of rivets 22 and spacers 23. Then, the two bases 11 , 12 and their washers associated 17,18 are threaded on the rods respectively by the two free ends of these rods after having previously mounted the compression spring 1 around the rods. Then, the pins 6,7 are mounted in the orifices provided for this purpose in the crank elements 4a, 4b; 5a, 5b and at the same time in the corresponding oblong orifices 20,21 of the connecting rods after having brought the two corresponding ends of the connecting rods between the two crank elements 4a, 4b, 5a, 5b. Then, the two bases 11, 12 are brought to bear on the pins 6, 7 during the extension of the compression spring 1.
  • these two rods are advantageously made of a plastic material and the two bases.
  • These two links have in section in a plane extending substantially perpendicular to the longitudinal axis of the connecting rods, a half-moon shape ( figure 10 ).
  • these two links form in section a circle whose outer surface 28 cooperates with an inner surface of tubular shape 27 of the corresponding base so that the base performs sliding guidance of these rods.
  • the bases perform sliding guide functions, centering the compression spring relative to the two connecting rods and the spring support surface.
  • the sliding guide rods is carried out in addition to the bases as previously explained, by means of a slide 26 forming a shoe advantageously made of plastic and interposed between the two connecting rods so as to perform this sliding guide function relative of these two connecting rods.
  • this guide device is carried out in the same manner as for the first embodiment, except that the mounting of the rivets and the spacer is replaced by the mounting of the slideway 26 between the two connecting rods. .
  • the guiding device is in the decompressed position of the spring 1 after a maneuver of the so-called first crank of the shaft Switch 2.
  • one of the shafts 6 associated with one of the cranks 4 is introduced into the closed eyelet 20 of one 8 connecting rods, while the other 7 of the two axes, associated with the other of the cranks 5, is introduced into the closed eyelet of the other rod 9.
  • the axes 6.7 are in abutment against the inner walls of the eyelets, said walls being located at the outer ends 20a, 20b of said eyelets.
  • the two axes are no longer inside the open eyelets 21.
  • the axis 6 associated with the crank 4 moves, which causes the displacement of the corresponding base 11, the latter sliding relative to the rods 8, 9, and the compression of the spring 1.
  • This axis 6 moves inside the closed eyelet 20 of the rod 9 and the open eyelet 21 of the connecting rod 8 until reaching the inner end 20a of the rod 9, 21b of the connecting rod 8 of these two eyelets. During this movement, the two rods move relative to each other closer.
  • the closed eyelet 20 of the connecting rod 8 and the open eyelet 21 of the connecting rod 9 move relative to the axis 7, which is not in movement until this axis 7 reaches the inner ends of the eyelets 20b of the connecting rod 8 and 21b of the connecting rod 9.
  • this spring drives the base 11 in a sliding movement relative to the two rods 8,9 in a direction away from one of the 'other. It follows a displacement of the axis 6 in a direction away from the two axes 6,7 from one another. This has the effect, the axis 6 coming into abutment against the face 20b of the connecting rod 9, to cause the relative displacement in sliding of the two connecting rods 8,9 relative to the other, thereby lengthening the assembly constituted by the two connecting rods, away from one another.
  • This guiding device has the advantage of eliminating the occurrence of bracing phenomena. This makes it possible to increase the number of maneuvers of a control mechanism, in particular a mechanism whose entire power chain consists exclusively of composite materials.
  • plastic parts in a device according to the invention allows the spring guide to be integrated into the existing mechanisms in which the entire power chain is exclusively composed of composite material.
  • the second embodiment described having the largest number of parts made of composite material is the most advantageous.
  • a set of telescopic connecting rods comprising two rods guided in translation with respect to each other and each comprising, at one of its ends, a closed oblong hole allowing receive the axis said first prisoner, and at its other end, an open oblong hole allowing escape the second axis so as to increase the guide stroke and therefore the length of this set of rods.
  • the invention is advantageously applied to any device for guiding a compression spring mounted between two axes, whose center distance varies between a minimum distance of 90 mm and a maximum distance of 145 mm, the total stroke of which is large (corresponding to 40% compression), all mounted in a small location.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Springs (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

La présente invention concerne un dispositif de guidage d'un ressort appartenant à un mécanisme de commande, ce dispositif comportant deux bielles aptes à coulisser l'une par rapport à l'autre et reliées de manière articulée respectivement par leurs extrémités libres à deux axes dont l'un au moins est relié mécaniquement à un arbre dit de manoeuvre, et un ressort de compression en appui par ses deux extrémités opposées respectivement sur les deux axes précités. Ce dispositif est caractérisé en ce qu'il comporte des moyens de guidage en coulissement des deux bielles l'une par rapport à l'autre, un orifice oblong fermé (20) formé à l'une des extrémités de chacune des bielles, un orifice oblong ouvert (21) formé à l'autre extrémité de chacune des bielles, ces bielles étant montées tête bêche, les orifices oblongs fermés (20) étant aptes à retenir prisonniers respectivement les deux axes (6,7), les deux orifices oblongs ouverts (21) étant aptes à laisser échapper respectivement les deux axes (6,7), de manière à faire varier la course de guidage.The present invention relates to a device for guiding a spring belonging to a control mechanism, this device comprising two rods capable of sliding relative to one another and articulatedly connected respectively by their free ends with two axes of which at least one is mechanically connected to a said operating shaft, and a compression spring supported by its two opposite ends respectively on the two aforementioned axes. This device is characterized in that it comprises sliding guide means of the two connecting rods relative to each other, a closed oblong orifice (20) formed at one end of each of the connecting rods, an orifice oblong open (21) formed at the other end of each of the connecting rods, these connecting rods being mounted head to tail, the oblong orifices closed (20) being able to retain prisoners respectively the two axes (6,7), the two openings oblong open (21) being able to let escape respectively the two axes (6,7), so as to vary the guide stroke.

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention concerne un dispositif de guidage d'un ressort appartenant à un mécanisme de commande, ce dispositif comportant deux bielles aptes à coulisser l'une par rapport à l'autre et étant reliées de manière articulées respectivement à deux axes dont l'un au moins est relié mécaniquement à un arbre de manoeuvre, et un ressort de compression en appui par ses deux extrémités opposées respectivement sur les deux axes précités.The present invention relates to a device for guiding a spring belonging to a control mechanism, this device comprising two rods able to slide relative to one another and being connected in a manner articulated respectively to two axes, one of which at least is mechanically connected to an operating shaft, and a compression spring supported by its two opposite ends respectively on the two aforementioned axes.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

On connaît de tels dispositifs de guidage utilisés pour le guidage de ressorts de compression dont la fonction est, soit de procurer une aide additionnelle destinée à ajouter de la puissance et de la rapidité à la manoeuvre par un utilisateur d'un arbre de sortie du mécanisme, soit à actionner un dispositif de manoeuvre à la place d'un utilisateur par un armement du ressort par compression de ce dernier suivi d'une décompression brusque de ce ressort produisant l'actionnement du dispositif de sortie/entraînement.Such guiding devices are known used for guiding compression springs whose function is either to provide additional assistance for adding power and speed to the operation by a user of an output shaft of the mechanism. or actuating an operating device in place of a user by arming the spring by compression of the latter followed by a sudden decompression of the spring producing the actuation of the output device / drive.

Ainsi, un tel sous-ensemble peut être monté soit entre deux axes appartenant respectivement à deux manivelles de manoeuvre de deux arbres, soit entre un axe de manivelle de manoeuvre et un axe fixe.Thus, such a subassembly can be mounted between two axes respectively belonging to two maneuvering cranks of two shafts, or between an operating crank pin and a fixed axis.

On connaît par exemple un dispositif de guidage de ressort consistant à utiliser deux embases de guidage coulissant l'une par rapport à l'autre, ces deux embases étant en appui de manière articulée respectivement sur deux axes reliés mécaniquement à deux manivelles. Le ressort est monté autour des deux embases précitées et est en appui respectivement par ses deux extrémités opposées respectivement sur ces deux embases.For example, there is known a spring guiding device consisting in using two guiding bases sliding relative to one another, these two bases being respectively articulately supported on two axes mechanically connected to two cranks. The spring is mounted around the two aforementioned bases and is respectively supported by its two opposite ends respectively on these two bases.

Ce dispositif présente l'inconvénient suivant :This device has the following disadvantage:

Du fait du dimensionnement réduit des deux embases, ces deux embases présentent une zone de recouvrement réduite lors de l'état décomprimé du ressort, ce qui peut provoquer un coincement par arc-boutement entre les deux embases.Due to the reduced size of the two bases, these two bases have a reduced overlap area during the decompressed state of the spring, which can cause jamming by jamming between the two bases.

Globalement, si ces dispositifs de guidage connus sont adaptés à être utilisés dans des mécanismes présentant une course de fonctionnement importante avec de grands éléments de guidage dans un encombrement relativement important, ou dans des mécanismes présentant une course de fonctionnement réduite avec de petits éléments de guidage dans un encombrement plus réduit, ils ne sont pas adaptés à être utilisés dans des mécanismes présentant une course de fonctionnement importante avec de petits éléments de guidage dans un encombrement plus réduit.Overall, if these known guiding devices are adapted to be used in mechanisms having a large operating stroke with large guide elements in a relatively large size, or in mechanisms having a reduced operating stroke with small guide elements in a smaller footprint, they are not suitable for use in mechanisms having a large operating stroke with small guide elements in a smaller footprint.

En effet, dans de tels mécanismes présentant un encombrement réduit, le dispositif de guidage peut présenter lors d'un nombre de manoeuvres élevé, une usure qui conduit à un arc-boutement de l'ensemble de guidage, empêchant ainsi toute manoeuvre supplémentaire.Indeed, in such mechanisms having a small footprint, the guiding device may exhibit during a high number of operations, a wear which leads to an arching of the guide assembly, thus preventing further maneuvering.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

La présente invention résout ces problèmes et propose un dispositif de guidage de ressort empêchant la survenue de phénomène d'arc-boutement entre les pièces coulissant l'une par rapport à l'autre, même dans le cas ou ce mécanisme a une course de fonctionnement importante dans un encombrement réduitThe present invention solves these problems and proposes a spring guiding device preventing the occurrence of bracing phenomenon between the sliding parts relative to each other, even in the case where this mechanism has a running stroke. important in a small footprint

La présente invention a également pour objet de proposer un tel dispositif de guidage, ce dispositif étant insensible à l'environnement.Another object of the present invention is to propose such a guiding device, this device being insensitive to the environment.

A cet effet, la présente invention a pour objet un dispositif de guidage d'un ressort du genre précédemment mentionné, ce dispositif étant caractérisé en ce qu'il comporte des moyens de guidage en coulissement des deux bielles l'une par rapport à l'autre, un orifice oblong fermé formé à l'une des extrémités de chacune des bielles, un orifice oblong ouvert formé à l'autre extrémité de chacune des bielles, lesdites bielles étant montées tête bêche, les orifices oblongs fermés étant aptes à retenir prisonniers respectivement les deux axes, les deux orifices oblongs ouverts étant aptes à laisser échapper respectivement les deux axes, de manière à faire varier la course de guidage, de telle manière que :

  • en phase de compression du ressort, pour obtenir la course de guidage minimum, les axes prisonniers dans les oblongs fermés, en s'approchant l'un de l'autre, viennent en butée fin de course dans leurs oblongs respectifs et entraînent les bielles en les rapprochant,
  • en phase d'extension du ressort, pour obtenir la course maximum, les axes prisonniers dans les oblongs fermés, en s'éloignant l'un de l'autre, viennent en butée fin de course dans leurs oblongs respectifs et entraînent les bielles en les écartant.
For this purpose, the subject of the present invention is a device for guiding a spring of the kind mentioned above, this device being characterized in that it comprises sliding guide means of the two connecting rods relative to each other, a closed oblong orifice formed at one end of each of the connecting rods, an open oblong orifice formed at the other end each of the connecting rods, said connecting rods being mounted head to tail, the oblong orifices closed being able to retain prisoners respectively the two axes, the two open oblong holes being able to let escape respectively the two axes, so as to vary the guide stroke , as such manner that :
  • in the compression phase of the spring, to obtain the minimum guide stroke, the trapped axes in the oblongs closed, approaching one another, come to end stop in their respective oblongs and drive the rods in bringing them together,
  • in the extension phase of the spring, to obtain the maximum stroke, the trapped axes in the oblongs closed, moving away from each other, come to end stop in their respective oblongs and drive the rods in them away.

Selon une caractéristique particulière, ce dispositif comporte deux embases tubulaires montées autour respectivement des deux extrémités opposées des deux ensembles de bielles, lesdites embases étant en appui par l'une de leur face respectivement sur les deux axes et servant de surface d'appui au ressort, par une face opposée à la précédente.According to a particular characteristic, this device comprises two tubular bases mounted around respectively the two opposite ends of the two sets of connecting rods, said bases being supported by one of their face respectively on the two axes and serving as a spring support surface. , by a face opposite to the previous one.

Selon une réalisation particulière, ces moyens de guidage en coulissement des deux bielles comportent deux entretoises cylindriques prisonnières chacune dans une lumière de forme oblongue et un orifice prévus respectivement dans les deux bielles, les deux lumières étant en regard respectivement des deux orifices.According to a particular embodiment, these sliding guide means of the two connecting rods comprise two cylindrical spacers each trapped in a slot of oblong shape and an orifice respectively provided in the two connecting rods, the two slots being respectively facing the two orifices.

Selon une autre réalisation, ces moyens de guidage en coulissement des deux bielles comportent une pièce intermédiaire formant patin interposée entre les deux bielles, et une surface de guidage prévue sur la surface intérieure des embases coopérant à coulissement avec une forme approprié correspondante de la surface extérieure des deux bielles.According to another embodiment, these sliding guide means of the two connecting rods comprise an intermediate piece forming a shoe interposed between the two connecting rods, and a guide surface provided on the surface. internal sliding bases cooperating with a corresponding appropriate shape of the outer surface of the two connecting rods.

Avantageusement, les bielles présentent en coupe transversale, une forme en demi-lune coopérant avec une forme correspondante de la surface intérieure des embases.Advantageously, the rods have in cross section, a half-moon shape cooperating with a corresponding shape of the inner surface of the bases.

La présente invention a encore pour objet un appareil de protection électrique comportant un dispositif de guidage de ressort comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison.The present invention further relates to an electrical protection apparatus comprising a spring guide device having the aforementioned features taken alone or in combination.

Avantageusement, cet appareil est un interrupteur-sectionneur moyenne tension.Advantageously, this apparatus is a medium voltage switch-disconnector.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • La figure 1 est une vue en perspective éclatée illustrant les différents éléments constituant d'un dispositif de guidage d'un ressort, selon une première réalisation de l'invention,
  • La figure 2 est une vue en perspective éclatée, illustrant un dispositif de guidage d'un ressort, selon une seconde réalisation de l'invention,
  • La figure 3 est une vue en coupe de face selon l'axe du ressort, du dispositif de la figure 1, en position décomprimée du ressort,
  • La figure 4 est une vue en coupe selon B-B de la figure 3,
  • La figure 5 est une vue de gauche de la figure 3,
  • Les figures 6, 7 et 8 sont des vues correspondant aux figures 3,4 et 5, le ressort de compression étant en position comprimée,
  • Les figures 9 à 14 sont des vues identiques aux figures 3 à 8, mais pour un dispositif de guidage selon la seconde réalisation de l'invention illustrée sur la figure 2.
But other advantages and features of the invention will become more apparent in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • The figure 1 is an exploded perspective view illustrating the various constituent elements of a device for guiding a spring, according to a first embodiment of the invention,
  • The figure 2 is an exploded perspective view, illustrating a device for guiding a spring, according to a second embodiment of the invention,
  • The figure 3 is a sectional front view along the axis of the spring, the device of the figure 1 , in the decompressed position of the spring,
  • The figure 4 is a sectional view along BB of the figure 3 ,
  • The figure 5 is a left view of the figure 3 ,
  • The Figures 6, 7 and 8 are views corresponding to figures 3,4 and 5 with the compression spring in the compressed position,
  • The Figures 9 to 14 are views identical to Figures 3 to 8 , but for a guiding device according to the second embodiment of the invention illustrated on the figure 2 .

Sur les figures, on voit le dispositif de guidage d'un ressort 1 selon l'invention, ledit ressort 1 pouvant faire partie du dispositif de commande d'un appareil de protection électrique tel un sectionneur.In the figures, we see the guide device of a spring 1 according to the invention, said spring 1 being part of the control device of an electrical protection device such as a disconnector.

De manière connue en soi, ce dispositif est destiné à être placé entre deux arbres 2,3 respectivement dits arbre Interrupteur et arbre Sectionneur de terre.In a manner known per se, this device is intended to be placed between two shafts 2,3 respectively called shaft switch and earth disconnector shaft.

Communément aux deux réalisations du dispositif selon l'invention illustrées respectivement sur les figures 1 et 2, chaque arbre est équipé d'une manivelle double 4,5, chacun des deux éléments 4a,4b; 5a,5b de la manivelle double présentant une surface plane s'étendant dans un plan sensiblement perpendiculaire à l'axe de rotation des arbres 2,3.Commonly to the two embodiments of the device according to the invention illustrated respectively on the Figures 1 and 2 each shaft is equipped with a double crank 4,5, each of the two elements 4a, 4b; 5a, 5b of the double crank having a planar surface extending in a plane substantially perpendicular to the axis of rotation of the shafts 2,3.

Sur chacune de ces manivelles 4,5 est monté un axe 6,7 s'étendant suivant une direction sensiblement perpendiculaire au plan de ladite manivelle correspondante, lesdits axes 6,7 étant destinés à coopérer avec un ensemble de deux bielles 8,9 dites de liaison, lesdites bielles étant reliées mécaniquement par leurs deux extrémités opposées auxdits deux axes des manivelles 4,5.On each of these cranks 4,5 is mounted an axis 6,7 extending in a direction substantially perpendicular to the plane of said corresponding crank, said pins 6,7 being intended to cooperate with a set of two connecting rods 8,9, so called link, said rods being mechanically connected by their two opposite ends to said two axes of the cranks 4,5.

Un ressort dit de compression 1 est monté autour des bielles 8,9 étant en appui par l'une 1a de ses extrémités sur l'une 4 des manivelles par l'intermédiaire d'une embase dite première 11, laquelle est en appui par l'une de ses faces 11a, sur l'axe correspondant 6, en un endroit situé entre les deux éléments de manivelle 4a,5a, et par son extrémité opposée 1 b, sur l'autre 5 des manivelles, par l'intermédiaire d'une seconde embase 12 en appui sur l'axe 7 associé à cette manivelle, entre les deux éléments 5a,5b de cette manivelle. On voit ainsi sur les figures 1 et 2 que les embases 11,12 comportent à cet effet deux encoches 13,14 destinées à coopérer respectivement avec deux évidements 15,16 prévus sur l'axe 6,7 correspondant.A so-called compression spring 1 is mounted around the rods 8, 9 supported by one of its ends on one of the cranks 4 via a so-called first base 11, which is supported by the one of its faces 11a, on the corresponding axis 6, at a location between the two crank members 4a, 5a, and at its opposite end 1b, on the other 5 of the cranks, via a second base 12 bears on the axis 7 associated with this crank, between the two elements 5a, 5b of this crank. So we see on Figures 1 and 2 that the bases 11,12 comprise for this purpose two notches 13,14 intended to cooperate respectively with two recesses 15,16 provided on the corresponding axis 6,7.

Ce dispositif comporte également, associé à chacune des embases, deux rondelles d'appui métalliques 17,18 destinées à être interposée chacune entre une face d'appui 11 b, 12b de l'embase et l'extrémité correspondante du ressort 1.This device also comprises, associated with each of the bases, two metallic support washers 17, 18 intended to be interposed each between a bearing face 11b, 12b of the base and the corresponding end of the spring 1.

Dans ces deux réalisations, chaque bielle comporte à l'une de ses extrémités, un oeillet ou orifice oblong fermé 20, et à son extrémité opposée, un oeillet ou orifice oblong ouvert 21, ces deux orifices oblongs étant destinés à coopérer chacun avec l'axe 6,7 situé du côté dudit orifice, cet axe étant différent pour chaque orifice.In these two embodiments, each connecting rod comprises at one of its ends, a closed eyelet or oblong orifice 20, and at its opposite end, an eyelet or open oblong orifice 21, these two oblong orifices being intended to cooperate each with the axis 6.7 located on the side of said orifice, this axis being different for each orifice.

Ainsi, les embases 11,12 prennent appui sur les axes 6,7 correspondants entre les deux éléments de manivelle 4a,4b ; 5a,5b et les bielles coopèrent avec les portions d'axe situées entre les deux évidements précités 15,16 prévus sur l'axe correspondant.Thus, the bases 11,12 bear on the corresponding axes 6,7 between the two crank elements 4a, 4b; 5a, 5b and the rods cooperate with the axis portions located between the two aforementioned recesses 15,16 provided on the corresponding axis.

Dans ces deux réalisations, le dispositif de guidage comporte des moyens pour permettre le guidage en coulissement des deux bielles l'une par rapport à l'autre tout en maintenant un certain jeu fonctionnel entre les deux bielles.In these two embodiments, the guiding device comprises means for allowing the sliding guide of the two connecting rods relative to each other while maintaining a certain functional clearance between the two connecting rods.

Selon la première réalisation illustrée sur les figures 1 et 3 à 8, ces deux bielles sont réalisées en un matériau métallique et sont maintenues à un certain jeu l'une par rapport à l'autre par deux ensembles comportant chacun un rivet 22 et une entretoise 23, ledit rivet 22 et ladite entretoise 23 traversant une ouverture oblongue 24 prévue dans l'une des bielles ainsi qu'un orifice 25 prévu dans l'autre des bielles de manière à autoriser le coulissement relatif entre ces deux bielles par déplacement de l'entretoise à l'intérieure de la rainure, le jeu fonctionnel entre ces deux bielles étant garantie par la présence des entretoises.According to the first illustrated figures 1 and 3 to 8 these two rods are made of a metallic material and are held at a certain clearance relative to one another by two sets each comprising a rivet 22 and a spacer 23, said rivet 22 and said spacer 23 passing through an oblong opening 24 provided in one of the rods and an orifice 25 provided in the other of the rods so as to allow relative sliding between these two rods by displacement of the spacer inside the groove, the functional clearance between these two connecting rods being guaranteed by the presence of the spacers.

Avantageusement, dans cette réalisation particulière, les deux embases sont réalisées en plastique, cette embase ayant pour fonction la mise en appui du ressort sur l'axe et le centrage du ressort par rapport aux deux bielles.Advantageously, in this particular embodiment, the two bases are made of plastic, this base having the function of putting the spring in abutment on the axis and the centering of the spring relative to the two connecting rods.

Lors du montage du dispositif de guidage, l'on procède tout d'abord à la fixation des deux bielles 8,9 l'une par rapport à l'autre au moyen des rivets 22 et des entretoises 23. Puis, les deux embases 11,12 et leurs rondelles associées 17,18 sont enfilées sur les bielles par respectivement les deux extrémités libres de ces bielles après avoir préalablement monté le ressort de compression 1 autour des bielles. Puis, les axes 6,7 sont montés dans les orifices prévus à cet effet dans les éléments de manivelle 4a, 4b ; 5a,5b ainsi que en même temps dans les orifices oblongs 20,21 correspondants des bielles après avoir amené les deux extrémités correspondantes des bielles entre les deux éléments 4a,4b ;5a,5b de manivelle. Puis, les deux embases 11,12 sont amenées en appui sur les axes 6,7 lors de l'extension du ressort de compression 1.During assembly of the guiding device, the two connecting rods 8, 9 are firstly fixed relative to one another by means of rivets 22 and spacers 23. Then, the two bases 11 , 12 and their washers associated 17,18 are threaded on the rods respectively by the two free ends of these rods after having previously mounted the compression spring 1 around the rods. Then, the pins 6,7 are mounted in the orifices provided for this purpose in the crank elements 4a, 4b; 5a, 5b and at the same time in the corresponding oblong orifices 20,21 of the connecting rods after having brought the two corresponding ends of the connecting rods between the two crank elements 4a, 4b, 5a, 5b. Then, the two bases 11, 12 are brought to bear on the pins 6, 7 during the extension of the compression spring 1.

Selon la seconde réalisation illustrée sur les figures 2 et 9 à 14, ces deux bielles sont réalisées avantageusement en un matériau plastique ainsi que les deux embases. Ces deux bielles présentent en coupe dans un plan s'étendant sensiblement perpendiculairement à l'axe longitudinal des bielles, une forme en demi-lune (figure 10). Ainsi, lorsqu'elles sont jointes l'une à l'autre, ces deux bielles forment en coupe un cercle dont la surface extérieure 28 coopère avec une surface intérieure de forme tubulaire 27 de l'embase correspondante de manière à ce que l'embase réalise le guidage en coulissement de ces bielles. Ainsi, dans cette réalisation, les embases réalisent les fonctions de guidage en coulissement, de centrage du ressort de compression par rapport aux deux bielles et de surface d'appui au ressort.According to the second illustrated achievement on figures 2 and 9 to 14 these two rods are advantageously made of a plastic material and the two bases. These two links have in section in a plane extending substantially perpendicular to the longitudinal axis of the connecting rods, a half-moon shape ( figure 10 ). Thus, when they are joined to each other, these two links form in section a circle whose outer surface 28 cooperates with an inner surface of tubular shape 27 of the corresponding base so that the base performs sliding guidance of these rods. Thus, in this embodiment, the bases perform sliding guide functions, centering the compression spring relative to the two connecting rods and the spring support surface.

Dans cette réalisation, le guidage en coulissement des bielles est réalisé en complément des embases tel que précédemment expliqué, au moyen d'une glissière 26 formant patin avantageusement réalisée en plastique et interposée entre les deux bielles de manière à réaliser cette fonction de guidage en coulissement relatif de ces deux bielles.In this embodiment, the sliding guide rods is carried out in addition to the bases as previously explained, by means of a slide 26 forming a shoe advantageously made of plastic and interposed between the two connecting rods so as to perform this sliding guide function relative of these two connecting rods.

Le montage de ce dispositif de guidage selon cette seconde réalisation s'effectue de la même manière que pour la première réalisation, à ceci près que le montage des rivets et de l'entretoise est remplacé par le montage de la glissière 26 entre les deux bielles.The mounting of this guide device according to this second embodiment is carried out in the same manner as for the first embodiment, except that the mounting of the rivets and the spacer is replaced by the mounting of the slideway 26 between the two connecting rods. .

Le fonctionnement du dispositif selon l'invention va être décrit dans ce qui suit en référence aux figures 3 à 8 pour la première réalisation, et 9 à 14 pour la seconde réalisation.The operation of the device according to the invention will be described in the following with reference to Figures 3 to 8 for the first realization, and 9 to 14 for the second realization.

Sur les figures 3 à 5, le dispositif de guidage est en position décomprimée du ressort 1 après une manoeuvre de la manivelle dite première de l'arbre Interrupteur 2. Dans cette position, l'un des axes 6 associé à l'une 4 des manivelles est introduit dans l'oeillet fermé 20 de l'une 8 des bielles, tandis que l'autre 7 des deux axes, associé à l'autre des manivelles 5, est introduit dans l'oeillet fermé de l'autre bielle 9. Dans cette position, les axes 6,7 sont en appui contre les parois intérieures des oeillets, lesdites parois étant situées aux extrémités extérieures 20a, 20b desdits oeillets. Les deux axes ne se trouvent plus à l'intérieur des oeillets ouverts 21.On the Figures 3 to 5 the guiding device is in the decompressed position of the spring 1 after a maneuver of the so-called first crank of the shaft Switch 2. In this position, one of the shafts 6 associated with one of the cranks 4 is introduced into the closed eyelet 20 of one 8 connecting rods, while the other 7 of the two axes, associated with the other of the cranks 5, is introduced into the closed eyelet of the other rod 9. In this position, the axes 6.7 are in abutment against the inner walls of the eyelets, said walls being located at the outer ends 20a, 20b of said eyelets. The two axes are no longer inside the open eyelets 21.

Lorsque la manivelle de manoeuvre 4 est entraînée en rotation, l'axe 6 associé à la manivelle 4 se déplace, ce qui entraîne le déplacement de l'embase correspondante 11, cette dernière coulissant par rapport aux bielles 8,9, et la compression du ressort 1. Cet axe 6 se déplace à l'intérieur de l'oeillet fermé 20 de la bielle 9 et de l'oeillet ouvert 21 de la bielle 8 jusqu'à arriver à l'extrémité intérieure 20a de la bielle 9 ,21b de la bielle 8 de ces deux oeillets. Pendant ce mouvement, les deux bielles se déplacent l'une par rapport à l'autre en se rapprochant.When the operating crank 4 is rotated, the axis 6 associated with the crank 4 moves, which causes the displacement of the corresponding base 11, the latter sliding relative to the rods 8, 9, and the compression of the spring 1. This axis 6 moves inside the closed eyelet 20 of the rod 9 and the open eyelet 21 of the connecting rod 8 until reaching the inner end 20a of the rod 9, 21b of the connecting rod 8 of these two eyelets. During this movement, the two rods move relative to each other closer.

Dans un même temps, pendant que l'on actionne l'une des manivelles, les bielles coulissent au niveau de l'autre embase et de l'axe 7, l'une par rapport à l'autre et l'axe 7 se rapproche des parties intérieures 21 b de la bielle 9 et 20b de la bielle 8.At the same time, while one of the cranks is actuated, the rods slide at the other base and the axis 7, relative to each other and the axis 7 is approaching. inner portions 21b of the connecting rod 9 and 20b of the connecting rod 8.

L'oeillet fermé 20 de la bielle 8 et l'oeillet ouvert 21 de la bielle 9 se déplacent par rapport à l'axe 7, qui lui n'est pas en mouvement jusqu'à ce que cet axe 7 arrive aux extrémités intérieures des oeillets 20b de la bielle 8 et 21 b de la bielle 9.The closed eyelet 20 of the connecting rod 8 and the open eyelet 21 of the connecting rod 9 move relative to the axis 7, which is not in movement until this axis 7 reaches the inner ends of the eyelets 20b of the connecting rod 8 and 21b of the connecting rod 9.

Lors d'un déplacement en rotation de la manivelle de manoeuvre 4 entraînant une décompression du ressort 1, ce ressort entraîne l'embase 11 dans un mouvement de coulissement par rapport aux deux bielles 8,9 dans un sens les éloignant l'une de l'autre. Il s'ensuit un déplacement de l'axe 6 dans un sens éloignant les deux axes 6,7 l'un de l'autre. Ceci a pour effet, l'axe 6 arrivant en butée contre la face 20b de la bielle 9, d'entrainer le déplacement relatif en coulissement des deux bielles 8,9 l'une par rapport à l'autre, rallongeant de ce fait l'ensemble constitué par les deux bielles, les éloignant l'une de l'autre.During a rotational movement of the operating crank 4 resulting in decompression of the spring 1, this spring drives the base 11 in a sliding movement relative to the two rods 8,9 in a direction away from one of the 'other. It follows a displacement of the axis 6 in a direction away from the two axes 6,7 from one another. This has the effect, the axis 6 coming into abutment against the face 20b of the connecting rod 9, to cause the relative displacement in sliding of the two connecting rods 8,9 relative to the other, thereby lengthening the assembly constituted by the two connecting rods, away from one another.

Ce dispositif de guidage selon l'invention présente l'avantage de supprimer la survenue de phénomènes d'arc-boutement. Ceci permet d'augmenter le nombre de manoeuvres d'un mécanisme de commande, en particulier un mécanisme dont toute la chaîne de puissance est exclusivement constituée de matériaux composite.This guiding device according to the invention has the advantage of eliminating the occurrence of bracing phenomena. This makes it possible to increase the number of maneuvers of a control mechanism, in particular a mechanism whose entire power chain consists exclusively of composite materials.

L'utilisation de pièces en matériau plastique dans un dispositif selon l'invention permet au guide ressort d'être intégré dans les mécanismes existants dans lesquels toute la chaîne de puissance est exclusivement constituée de matériau composite.The use of plastic parts in a device according to the invention allows the spring guide to be integrated into the existing mechanisms in which the entire power chain is exclusively composed of composite material.

La seconde réalisation décrite comportant le plus grand nombre de pièces réalisées en matériau composite est donc la plus avantageuse.The second embodiment described having the largest number of parts made of composite material is the most advantageous.

Les avantages inhérents à l'invention sont obtenus grâce à un ensemble de bielles télescopiques, comportant deux bielles guidées en translation l'une par rapport à l'autre et comportant chacune, à l'une de ses extrémités, un trou oblong fermé permettant de recevoir l'axe dit premier prisonnier, et à son autre extrémité, un orifice oblong ouvert laissant échapper le second axe de manière à permettre d'augmenter la course de guidage et donc la longueur de cet ensemble de bielles.The advantages inherent in the invention are obtained thanks to a set of telescopic connecting rods, comprising two rods guided in translation with respect to each other and each comprising, at one of its ends, a closed oblong hole allowing receive the axis said first prisoner, and at its other end, an open oblong hole allowing escape the second axis so as to increase the guide stroke and therefore the length of this set of rods.

On notera qu'en situation de course maximum correspondant à la longueur maximale de cet ensemble de bielles, le ressort de compression reste en permanence précontraint.It will be noted that in maximum stroke situation corresponding to the maximum length of this set of connecting rods, the compression spring remains permanently prestressed.

L'invention s'applique avantageusement à tout dispositif de guidage d'un ressort de compression monté entre deux axes, dont l'entraxe varie entre une distance minimum de 90mm et une distance maximum de 145mm, dont la course totale est importante (correspondant à 40% de compression), le tout monté dans un emplacement réduit.The invention is advantageously applied to any device for guiding a compression spring mounted between two axes, whose center distance varies between a minimum distance of 90 mm and a maximum distance of 145 mm, the total stroke of which is large (corresponding to 40% compression), all mounted in a small location.

Bien entendu, l'invention n'est pas limitée aux modes de réalisations décrits et illustrés qui n'ont été donnés qu'à titre d'exemple.Of course, the invention is not limited to the embodiments described and illustrated which have been given by way of example.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci ont été réalisées suivant son esprit.On the contrary, the invention comprises all the technical equivalents of the means described and their combinations if they have been carried out according to its spirit.

Claims (7)

Dispositif de guidage d'un ressort appartenant à un mécanisme de commande, ce dispositif comportant deux bielles aptes à coulisser l'une par rapport à l'autre et reliées de manière articulée respectivement par leurs extrémités libres à deux axes dont l'un au moins est relié mécaniquement à un arbre dit de manoeuvre, et un ressort de compression en appui par ses deux extrémités opposées respectivement sur les deux axes précités, caractérisé en ce qu'il comporte des moyens de guidage en coulissement des deux bielles (8,9) l'une par rapport à l'autre, un orifice oblong fermé (20) formé à l'une des extrémités de chacune des bielles, un orifice oblong ouvert (21) formé à l'autre extrémité de chacune des bielles, lesdites bielles étant montées tête bêche, les orifices oblongs fermés (20) étant aptes à retenir prisonniers respectivement les deux axes (6,7), les deux orifices oblongs ouverts (21) étant aptes à laisser échapper respectivement les deux axes(6,7), de manière à faire varier la course de guidage, de telle manière que : - en phase de compression du ressort (1), pour obtenir la course de guidage minimum, les axes (6,7) prisonniers dans les oblongs fermés (20), en s'approchant l'un de l'autre, viennent en butée fin de course dans leurs oblongs respectifs et entraînent les bielles en les rapprochant, - en phase d'extension du ressort, pour obtenir la course maximum, les axes (6,7) prisonniers dans les oblongs fermés (20), en s'éloignant l'un de l'autre, viennent en butée fin de course dans leurs oblongs respectifs et entraînent les bielles (8,9) en les écartant. A device for guiding a spring belonging to a control mechanism, this device comprising two rods able to slide relative to each other and hingedly connected respectively by their free ends with two axes of which at least one is mechanically connected to a so-called operating shaft, and a compression spring supported by its two opposite ends respectively on the two aforementioned axes, characterized in that it comprises sliding guide means of the two connecting rods (8, 9) one with respect to the other, a closed oblong orifice (20) formed at one end of each of the connecting rods, an open oblong orifice (21) formed at the other end of each of the connecting rods, said connecting rods being mounted head to tail, the oblong orifices closed (20) being able to retain prisoners respectively the two axes (6,7), the two oblong holes open (21) being able to let escape respectively the two ax es (6,7), so as to vary the guide stroke, so that: - In the compression phase of the spring (1), to obtain the minimum guide stroke, the axes (6,7) trapped in the oblongs closed (20), approaching one another, come into abutment end of the race in their respective oblongs and drag the rods closer together, in the extension phase of the spring, in order to obtain the maximum stroke, the axes (6, 7) trapped in the oblongs (20), moving away from one another, come to a limit stop in their respective oblongs and drag the rods (8,9) away. Dispositif de guidage selon la revendication 1, caractérisé en ce qu'il comporte deux embases tubulaires (11,12) montées autour respectivement des deux extrémités opposées des deux ensembles de bielles (8,9), lesdites embases (11,12) étant en appui par l'une (11a) de leur face respectivement sur les deux axes (6,7) et servant de surface d'appui (11 b) au ressort (1), par une face opposée à la précédente.Guiding device according to claim 1, characterized in that it comprises two tubular bases (11, 12) mounted around respectively the two opposite ends of the two sets of connecting rods (8, 9), said bases (11, 12) being in support by one (11a) of their face respectively on the two axes (6,7) and serving as a bearing surface (11b) to the spring (1), by a face opposite to the previous one. Dispositif de guidage selon la revendication 1 ou 2, caractérisé en ce que ces moyens de guidage en coulissement des deux bielles comportent deux entretoises cylindriques (23) prisonnières chacune dans une lumière de forme oblongue (24) et un orifice (25) prévus respectivement dans les deux bielles (8,9), les deux lumières étant en regard respectivement des deux orifices.Guiding device according to claim 1 or 2, characterized in that said sliding guide means of the two connecting rods comprise two cylindrical spacers (23) each trapped in an oblong slot (24) and an orifice (25) respectively provided in the two rods (8,9), the two lights being respectively opposite the two orifices. Dispositif de guidage selon les revendications 1 et 2, caractérisé en ce que ces moyens de guidage en coulissement des deux bielles comportent une pièce intermédiaire formant patin (26) interposée entre les deux bielles (8,9), et une surface de guidage (27) prévue sur la surface intérieure des embases (11,12) coopérant à coulissement avec une forme appropriée correspondante de la surface extérieure (28) des deux bielles (8,9).Guiding device according to claims 1 and 2, characterized in that said sliding guide means of the two connecting rods comprise an intermediate piece forming a shoe (26) interposed between the two connecting rods (8, 9), and a guide surface (27). ) provided on the inner surface of the bases (11,12) slidably cooperating with a corresponding appropriate shape of the outer surface (28) of the two connecting rods (8,9). Dispositif de guidage selon la revendication 4, caractérisé en ce que les bielles présentent en coupe transversale, une forme en demi-lune coopérant avec une forme correspondante de la surface intérieure (28) des embases.Guiding device according to claim 4, characterized in that the rods have in cross section, a half-moon shape cooperating with a corresponding shape of the inner surface (28) of the bases. Appareil de protection électrique comportant un dispositif de guidage de ressort selon l'une quelconque des revendications précédentes.Electrical protection apparatus comprising a spring guide device according to any one of the preceding claims. Appareil de protection électrique selon la revendication 6, caractérisé en ce que cet appareil est un interrupteur-sectionneur moyenne tension.Electrical protection device according to Claim 6, characterized in that this device is a medium voltage switch-disconnector.
EP16188897.9A 2015-12-18 2016-09-15 Device for guiding a spring in a control mechanism and electrical protection apparatus including it Active EP3182433B1 (en)

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FR1562718A FR3045930B1 (en) 2015-12-18 2015-12-18 DEVICE FOR GUIDING A SPRING IN A CONTROL MECHANISM AND ELECTRICAL PROTECTION APPARATUS COMPRISING IT.

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WO2020201000A1 (en) * 2019-03-29 2020-10-08 Siemens Aktiengesellschaft Coupling, spring system, drive system having a coupling and spring system, and switchgear comprising said drive system

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US5148913A (en) * 1990-03-22 1992-09-22 Merlin Gerin Operating mechanism of a three-position switch
EP0586733A1 (en) * 1992-09-10 1994-03-16 GEC Alsthom T&D AG Snap action driving arrangement for circuit breakers

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CN104299809B (en) * 2014-06-27 2017-01-11 国家电网公司 Spring assembly and spring operating mechanism using the same

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US5148913A (en) * 1990-03-22 1992-09-22 Merlin Gerin Operating mechanism of a three-position switch
EP0586733A1 (en) * 1992-09-10 1994-03-16 GEC Alsthom T&D AG Snap action driving arrangement for circuit breakers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020201000A1 (en) * 2019-03-29 2020-10-08 Siemens Aktiengesellschaft Coupling, spring system, drive system having a coupling and spring system, and switchgear comprising said drive system
WO2020200951A1 (en) * 2019-03-29 2020-10-08 Siemens Aktiengesellschaft Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive system
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

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FR3045930B1 (en) 2017-12-22
EP3182433B1 (en) 2018-02-28
CN107017100B (en) 2020-06-12
CN107017100A (en) 2017-08-04
FR3045930A1 (en) 2017-06-23

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