EP0054465B1 - Commutateur électrique à doigt de manoeuvre monté pivotant - Google Patents

Commutateur électrique à doigt de manoeuvre monté pivotant Download PDF

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Publication number
EP0054465B1
EP0054465B1 EP19810401907 EP81401907A EP0054465B1 EP 0054465 B1 EP0054465 B1 EP 0054465B1 EP 19810401907 EP19810401907 EP 19810401907 EP 81401907 A EP81401907 A EP 81401907A EP 0054465 B1 EP0054465 B1 EP 0054465B1
Authority
EP
European Patent Office
Prior art keywords
positioning
tongue portion
over switch
positioning tongue
switch according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19810401907
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0054465A1 (fr
Inventor
Christian Laroudie
Alain Leluc
Roger Parlatore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SA
Original Assignee
Legrand SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Legrand SA filed Critical Legrand SA
Publication of EP0054465A1 publication Critical patent/EP0054465A1/fr
Application granted granted Critical
Publication of EP0054465B1 publication Critical patent/EP0054465B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon

Definitions

  • the present invention relates generally to electrical switches of the kind comprising a body, an operating finger pivotally mounted on said body in two extreme positions, at least two contact pads disposed in said body, a conductive brush carried by the finger. of mancevre and comprising at least one contact strip suitable for cooperating with one of the contact pads, and means for controlling the conductive position which, acting between the other of said contact pads and the conductive brush, comprise a yoke positioning carried by said other contact pad and a positioning tab integral with the conductive brush and able to cooperate with said positioning yoke.
  • the conductive brush which it comprises constituting by itself the positioning tongue of the position control means, so that the same part, namely this conductive brush , suitably cut and shaped, assumes a multiplicity of functions, and in particular those of current flow, contact pressure on the contact pads, and control of the position of the maneuvering finger.
  • the conductive brush is reduced to a metal strip which, by its central zone, shaped for this purpose in V or U open, constitutes the positioning tongue intended to cooperate with the positioning yoke, and, by its lateral wings, constitutes contact strips in continuity with its central zone, and which, at its ends, is engaged in recesses of the operating finger in which it is thus buttressed, and therefore restrained.
  • the present invention generally relates to a provision making it possible to avoid these drawbacks, while making it possible to retain the advantages of a single embodiment of the conductive brush and of any one of the positioning members, tongue or yoke, associated with the operating finger.
  • the present invention relates to an electrical switch of the kind comprising a body, an operating finger pivotally mounted on said body between two extreme positions, at least two contact pads arranged in said body, a conductive brush carried by the operating finger and comprising at least one contact strip capable of cooperating with one of the contact pads, and conductive position control means which, acting between the other of said contact pads and the conductive brush, comprise a positioning yoke carried by said other contact pad and a positioning tab integral with the conductive brush and able to cooperate with said positioning yoke, this electrical switch being characterized in that the positioning tongue is dissociated from the contact strip and is thus able to play elastically independently of it, and in that the free end at least of the contact strip extends to the right of a recess of the operating finger, so that it can play elastically freely.
  • the positioning tab is offset transversely relative to the contact strip.
  • this contact strip is formed by means of a puncture in the conductive brush.
  • the positioning tab and the contact strip which assume different functions, can advantageously play elastically independently of one another, it that is to say without inter-reaction between them, which guarantees the independence of execution between these functions.
  • the fixing of the conductive brush of the operating finger is done in passages or tongues of said conductive brush, at least some of which are offset transversely with respect to the lamella of contact.
  • the physical dissociation made according to the invention between the positioning tab and the contact strip advantageously results in a dissociation between the functions performed by these two parts.
  • the electrical switch object of the present invention since, unlike of these, the electric switch body carries by itself both the conductive brush and the corresponding contact pads.
  • the electrical switch according to the invention comprises a body 10, which, not forming part of the present invention, has only been shown diagrammatically by its outline, in lines interrupted, in FIG. 1, an operating finger 11, which is pivotally mounted on the body 10 between two extreme positions, and a conductive brush 12, which is carried by the operating finger 11.
  • the body 10 and the operating finger 11 are made of insulating material.
  • the operating finger 11 which is generally parallelepipedic, carries an axis 13 transversely.
  • It can be a separate part, but it can also be two pins projecting laterally projecting from the longitudinal sides of the operating finger 11.
  • these contact pads are three in number: there is a central pad 14, and two lateral pads 15, 15 '.
  • the lateral contact pads 15, 15 ′ are each disposed respectively on either side of the central stud 14, in alignment with one another, but, for reasons which will appear below, the central contact pad 14 is offset transversely relative to the alignment formed by the lateral contact pads 15, 15 '(not visible in the figures).
  • connection terminals 14 and 15, 15 ′ all form connection terminals by themselves, and these are connection terminals with hole 17 , for engagement of a driver, and screw 18, for tightening thereof, but this is not necessarily so.
  • the contact pads can constitute separate parts from the connection terminals with which they are associated, by being suitably electrically connected to them, and / or these connection terminals can be of a different type from those described above. above, and for example be tab connection terminals, or the like, allowing direct engagement of the conductors concerned or rapid connection thereof.
  • the conductive brush 12 which is shown in isolation in FIG. 2, is a part which comes in one piece from a metal strip, suitably cut and shaped.
  • the conductive brush 12 comprises two contact strips 20, 20' each suitable for cooperating with the corresponding lateral contact pad 15.15 'respectively.
  • the contact strips 20, 20 ' leave, at their end, for cooperation with the lateral contact feet 15, 15 ′, contact grains 21, 21 ′, in silver for example, or in silver metal, in a manner known per se; but it is not necessarily so.
  • the contact pads 15, 15' have, in the embodiment shown in Figures 1 to 4, a rounded boss 22, 22 ', which can also be a boss reported, in silver or silver metal, if desired.
  • the operating finger 11 is associated with position control means, and these are conductive position control means which, acting between the central contact pad 14 and the conductive brush 12, comprise on the one hand a yoke positioning 25 carried by said central contact pad 14, and on the other hand a positioning tab 26 integral with the conductive brush 12 and able to cooperate with the positioning yoke 25.
  • the positioning tab 26 is dissociated from the contact strips 20, 20 ′ of the conductive brush 12 and is thus able to play elastically independently of these, and the free end at least, and in practice all , of each contact strip 20, 20 'of the conductive brush 12, extends in line with a recess 24, 24' of the operating finger 11, so that it can play elastically freely in contact with the contact pad 15 , 15 'corresponding, elastically deforming.
  • the positioning tongue 26 extends in overhang from a rooting zone 27 belonging to the conductive brush 12, and it is transversely offset with respect to the contact strips 20, 20 ′, its rooting zone 27 being disposed at the end of a part 28 of the conductive brush 12 which, elongated in a strip parallel to the positioning tongue 26, is intermediate between it ci and the contact strips 20, 20 ′, connecting this positioning tab 26 and these contact strips 20,20 ′ in continuity.
  • the positioning tab 26 is separated from the strip 28 by a slot 29 with disjointed lips, and similarly, this strip 28 is separated from the contact strips 20, 20 ' by slots 30, 30 'similar.
  • the main thing is that the contact strips 20, 20 'on the one hand, and the positioning tab 26 on the other hand, can play elastically freely independently of each other.
  • the strip 28 of the conductive brush 12 which forms a median part thereof, forms, by a development, the rooting zone 27 of the positioning tongue 26; at its other end, it has, in the embodiment illustrated in FIGS. 1 to 4, another similar opening 27 ′.
  • openings 27, 27 ′ which are coplanar and correspond to the initial plane of the strip from which the conductive brush 12 is cut, are used to fix the latter to the operating finger 11.
  • this fixing is done by crimping: crimping pins 32, 32 'coming from pillars 33, 33' of the operating finger 11 pass through passages 34, 34 'provided at this effect in the openings 27, 27 ′ of the conductive brush 12.
  • the passages 34, 34 'and 31 are circular.
  • the positioning tongue 26 extends obliquely.
  • its free end, or nose 37 forms a dihedral with a V-profile.
  • the bisector plane of the dihedron formed by its free end 37 is coincident with the plane containing the edge 48 of this dihedron 37 and the axis of rotation 13 of the operating finger 11.
  • the positioning yoke 25 with which the positioning tongue 26 cooperates has a convex profile, said here, for convenience, convex dihedral profile.
  • the top zone of this screed is softened by a rounding.
  • the electrical switch concerned constitutes a back-and-forth.
  • FIGS. 1 and 4A the elastic deformation that the contact strip 20, made possible by the corresponding recess 24 of the operating finger 11, is illustrated by the fact that this contact strip 20 deviates from the plane of the strip in which the conductive brush 12 is cut, materialized by the rooting zone 27 of the positioning tongue 26.
  • the operating finger 11 continues to tilt by itself, until the contact strip 20 'comes to bear against the stud corresponding lateral contact 15 ′, according to methods analogous to those described above, the positioning tab 26 then bearing on the side of the positioning yoke 25 opposite this lateral contact pad 15 ′, FIG. 4C.
  • the central contact pad 14 is then, in a stable manner, in electrical continuity with the lateral contact pad 15 '.
  • the positioning yoke 25 has a concave dihedral profile.
  • the electric switch concerned then constitutes a mid-point reverser with momentary continuity, its operating finger 11 being permanently resiliently returned to the middle position for which, as shown, the contact strips 20, 20 ′ of the conductive brush 12 are the one and the other at a distance from the lateral contact pads 15,15 '.
  • the positioning yoke 25 has a concave dihedral profile but it also comprises two oblique sides 38, 38 ′ on either side of the concave dihedral that it forms, in the opposite direction to that of the flanks of this dihedral, and it therefore has two edges 39, 39 '.
  • the electric switch concerned in this case constitutes a mid-point inverter with maintained continuity.
  • its operating finger 11 can occupy one or the other of three stable positions, namely two extreme positions for which the central contact pad is in electrical continuity with the corresponding lateral contact pad 15, 15 ′, and a middle position for which this electrical continuity is interrupted.
  • the positioning yoke 25 has a generally symmetrical profile.
  • FIG. 7 it can comprise an asymmetrical profile, by forming in continuity first a convex dihedral then a concave dihedral.
  • the electric switch concerned then constitutes a mid-point inverter with continuity maintained for one of the extreme positions of its operating finger, which is stable, and with momentary continuity for the other of the extreme positions thereof, which is unstable. .
  • the free end, or nose 37, of the lan positioning spout 26, forms a gutter with a semicircular profile.
  • FIG. 9 it forms a V-shaped dihedron, as before, but, for the rest configuration, the bisector plane of this dihedral is oblique with respect to the plane containing the edge 48 thereof and the axis of rotation 13 of the operating finger 11.
  • This arrangement is such as to facilitate the sliding of the positioning tongue 26 on the corresponding positioning yoke, at least for one of the sides thereof.
  • the free end, or nose 37, of the positioning tongue 26 is subjected to a spring 40 intended to reinforce the contact pressure of this positioning tongue 26 on the positioning yoke 25 with which it cooperates, in the case where, for at least certain applications, the position control of the operating finger 11 must be particularly firm.
  • the free end 37 of the positioning tongue 26 protrudes, in the embodiment shown , a spoiler 42 on which said additional spring 40 is engaged; alternatively, the groove of the V formed by this free end 37 serves as a support and support housing for the additional spring 40 (not shown).
  • the positioning tab 26 is separated from the central strip 28 of the conductive brush 12 only by a slot with joined lips, and this strip 28 runs only over one half of the conductive brush 12 , between the positioning tab 26 and the contact strip 20.
  • the passages 34 and 31 provided in the conductive brush 12 for the crimping pins suitable for fixing the latter to the operating finger 11 form buttonholes elongated in oval shape.
  • the positioning tab 26 extends in the axis of the contact strips 20, 20 ′, and is formed by a punctured 43 of the conductive brush 12.
  • contact strips 20, 20 ' are offset relative to the plane of the frame 44 surrounding the puncture 43, this frame 44 extending in a bowl relative to these contact strips 20, 20'.
  • connection of the conductive brush 12 to the operating finger 11 is effected by snap-fastening, the frame 44 of this conductive brush 12 laterally projecting from the tongues 45 by which it is engaged in grooves 46 formed in a complementary manner in the operating finger 11, the corresponding engagement being effected by elastic deformation of this operating finger 11.
  • the lateral contact pad 15 ′ is arranged opposite to the lateral contact pad 15, and a single contact strip 20 is provided on the conductive brush 12 for cooperation either with this contact pad 15, or with this contact pad 15 ', this contact strip 20 carrying for this purpose, on its opposite faces, two contact grains 21, 21'.
  • the lateral contact pad 15 ′ does not by itself form a connection terminal, but a simple tab suitably connected to such a connection terminal.
  • flanks of the dihedron of the positioning yoke used are generally planar. This is preferably so, except as regards the positioning yoke shown in FIGS. 1 to 4, for which, in order to avoid precise angular positioning of this positioning yoke, and therefore of the central contact pad 14 which the door, a conical shape is preferably given to this positioning yoke.
  • only two contact pads can be provided, a central contact pad and a side contact pad.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
EP19810401907 1980-12-17 1981-12-02 Commutateur électrique à doigt de manoeuvre monté pivotant Expired EP0054465B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8026753 1980-12-17
FR8026753A FR2496331A1 (fr) 1980-12-17 1980-12-17 Commutateur electrique

Publications (2)

Publication Number Publication Date
EP0054465A1 EP0054465A1 (fr) 1982-06-23
EP0054465B1 true EP0054465B1 (fr) 1985-03-06

Family

ID=9249186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810401907 Expired EP0054465B1 (fr) 1980-12-17 1981-12-02 Commutateur électrique à doigt de manoeuvre monté pivotant

Country Status (5)

Country Link
EP (1) EP0054465B1 (es)
BR (1) BR8108280A (es)
DE (1) DE3169206D1 (es)
ES (1) ES508097A0 (es)
FR (1) FR2496331A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564234B1 (fr) * 1984-05-11 1988-04-15 Legrand Sa Commutateur electrique a doigt de manoeuvre monte pivotant
DE3505737A1 (de) * 1985-02-20 1986-08-21 Fa. Albrecht Jung, 5885 Schalksmühle Elektrischer installationsschalter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1219900A (fr) * 1959-04-08 1960-05-20 Ind D Soule Ets Perfectionnements aux interrupteurs et commutateurs électriques
DE1159067B (de) * 1961-05-13 1963-12-12 Braun Ag Elektrischer Wippenschalter
GB1088616A (en) * 1964-05-08 1967-10-25 Matsushita Electric Works Ltd Improvements in or relating to electric switches
FR1434254A (fr) * 1965-02-22 1966-04-08 Interrupteur électrique
FR2191236B1 (es) * 1972-06-29 1976-03-12 Boulore Roger
DE2701720C2 (de) * 1977-01-17 1982-11-11 Franz Neumann, Elektro-Apparatebau, 8070 Ingolstadt Kippschalter
DE2801336A1 (de) * 1978-01-13 1979-07-19 Pistor & Kroenert Elektrischer kippschalter

Also Published As

Publication number Publication date
EP0054465A1 (fr) 1982-06-23
ES8302953A1 (es) 1982-12-01
ES508097A0 (es) 1982-12-01
BR8108280A (pt) 1982-10-05
FR2496331B1 (es) 1984-11-30
FR2496331A1 (fr) 1982-06-18
DE3169206D1 (en) 1985-04-11

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