EP0446842B1 - Interrupteur à tirette électrique - Google Patents

Interrupteur à tirette électrique Download PDF

Info

Publication number
EP0446842B1
EP0446842B1 EP91103699A EP91103699A EP0446842B1 EP 0446842 B1 EP0446842 B1 EP 0446842B1 EP 91103699 A EP91103699 A EP 91103699A EP 91103699 A EP91103699 A EP 91103699A EP 0446842 B1 EP0446842 B1 EP 0446842B1
Authority
EP
European Patent Office
Prior art keywords
housing base
conductor connecting
switch
pull switch
rocker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91103699A
Other languages
German (de)
English (en)
Other versions
EP0446842A1 (fr
Inventor
Werner Schmalenbach
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.)
ABB AG Germany
ABB AB
Original Assignee
Asea Brown Boveri AG Germany
Asea Brown Boveri AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asea Brown Boveri AG Germany, Asea Brown Boveri AB filed Critical Asea Brown Boveri AG Germany
Publication of EP0446842A1 publication Critical patent/EP0446842A1/fr
Application granted granted Critical
Publication of EP0446842B1 publication Critical patent/EP0446842B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain
    • H01H17/16—Switches having flexible operating part adapted only for pulling, e.g. cord, chain having a single flexible operating part adapted for pulling at one end only
    • H01H17/165—Switches having flexible operating part adapted only for pulling, e.g. cord, chain having a single flexible operating part adapted for pulling at one end only secured to a part of the switch mechanism that has only rectilinear movement

Definitions

  • the invention relates to an electric pull switch of the type mentioned in the preamble of claim 1.
  • Pull switches actuated by pull cords are known in the prior art in various designs.
  • an electric pull switch is known, the switching mechanism of which has a switch rocker which is mounted and can be tensioned against a return spring and which is connected via a film hinge to a slide switch guided in a longitudinal groove of the upper housing part, on which a pull cord is immediately made of the same material is molded.
  • the switching rocker engages with switching lugs formed on opposite sides on switching cams of a control rocker, which is mounted centrally and with its free, rigid control cam-carrying ends, switches contact rockers from one stable position to another stable position.
  • the pull switch known in the prior art which is designed with four conductor terminals designed as screw terminals, can be installed in a 58 mm flush-mounting wall box according to DIN standard, as well as in a flush-mounted wall box according to CEE standard.
  • the minimum distance of a 6 mm between the box wall and the live parts of the pull switch required for installation in a CEE standard box can be guaranteed.
  • the largest base dimension according to the CEE standard is not exceeded in the area of the conductor terminals, including the cables connected there.
  • CEE standard a flush-mounting wall box according to CEE standard
  • the housing base Due to the central symmetrical design of the housing base according to the invention, a proper fitting of the pull switch with screwless conductor connection terminals is possible not only in a DIN standard socket but also in a CEE standard socket.
  • the connecting lines brought in pairs from above or from below to the connecting terminals are laterally inserted into the connecting terminals generally provided for connecting two connecting lines.
  • the switching space located between the first and the second screwless conductor connection terminal is also asymmetrically divided according to the invention in that the distance between the contact rocker support point and the first conductor connection terminal is smaller than the distance of the Contact rocker support point to the second conductor terminal.
  • the switching mechanism is arranged in the plane of the switching contacts, namely between them.
  • the pull switch is advantageously only equipped with three connecting terminals.
  • the pull switch according to the invention is equipped with four screwless connecting terminals.
  • FIG. 1 shows a housing base 1, in which three screwless conductor connecting terminals 24 I , 24 II , 24 III are preferably inserted with a clamping spring 25. Pressure leg 35, 36 of the clamping spring 25 clamp two connecting lead wires 37 in clamping grooves 38. The connecting line wires 37 can be released again by means of spring release buttons 39.
  • Fixed contact parts 30, 31, 32 are inserted in contacting manner with plug-in tabs 23 in the conductor connection terminals 24.
  • the plug-in lugs 23 preferably have beads 9, which serve for better locking of the respective plug-in lugs 23 in the housing wall of the conductor connection terminals 24.
  • a contact rocker 10 is pivotally mounted on a contact rocker support point P of the first fixed contact part 30, which is designed as a rigid bearing contact, the pivot axis of the contact rocker 10 being perpendicular to Base floor of the housing base 1 is directed.
  • the distance a I of the contact rocker support point P to the first conductor connection terminal 24 I is smaller than the distance a II of the contact rocker support point P to the second conductor connection terminal 24 II .
  • a movable contact part 22 is arranged, which optionally and depending on the rocking position of the contact rocker 10 contacts either a second fixed contact part 31 or a third fixed contact part 32.
  • the rocking position of the contact rocker 10 is controlled by a control cam 26 of a control rocker 8 pivotally mounted in the housing base 1.
  • the control cam 26 is axially displaceable in a recess 29 of the control rocker 8 and resiliently supported by means of a control cam contact pressure spring 28.
  • On the control rocker 8 two switching cams 27 are arranged, which are alternately switched by the engagement of two switching lugs 7 of a switching rocker 5.
  • the rocker switch 5 is pivotally mounted on a slide switch 4 by means of a pivot bearing pin 6.
  • the slide switch 4 can be moved linearly by means of a web 20 in a longitudinal groove 15 of an upper housing part 2.
  • the slide switch 4 also has an integrally formed extension 13, on the end of which one end of a swivel slide return spring 3 is mounted laterally, the extension 13 resting on a first shoulder 17 of the housing base 1 and being mounted on a sliding bearing.
  • a fastening pin 14 for an actuating pull cord 21 is attached on a part of the extension 13 which extends through a longitudinal recess 16 of the upper housing part 2, a fastening pin 14 for an actuating pull cord 21 is attached.
  • Switch slide 4 and rocker switch 5 form a swivel slide 4, 5 that can be moved as well as swiveled.
  • the rocker switch 5 rests on a second shoulder 18 of the housing base 1 and is slidingly supported.
  • the switching mechanism of the electric pull switch described above is arranged on the housing base 1 in order to achieve a flat switch design in the plane of the contact parts.
  • the housing base 1 is of central symmetry, that is to say that the housing base limiting points B 1, B 2 and the connecting base limiting lines b 1 2, B 2 1 connecting them are made to coincide by a 180 ° rotation about a point symmetry center M o .

Landscapes

  • Switch Cases, Indication, And Locking (AREA)

Claims (2)

  1. Interrupteur électrique à tirette pour encastrement dans des boîtes encastrées correspondant à la norme DIN ou à la norme CEE, comprenant une partie supérieure de boîtier (2) et un socle de boîtier (1) recevant des bornes de raccordement de conducteur (24) ainsi qu'un mécanisme de commutation agencé dans le plan des bornes de raccordement de conducteur (24) et pourvu d'une bascule de contact (10), caractérisé en ce que le socle de boîtier (1) équipé de bornes de raccordement de conducteur (24I, 24II, 24III) sans vis est réalisé d'une manière centralement symétrique, les points de délimitation du socle de boîtier (B₁ à B₂) à côté des lignes de délimitation du socle de boîtier (b₁₂, b₂₁) qui les relient étant amenés à se recouvrir par une rotation du socle de boîtier (1) autour d'un centre de symétrie (M₀) de l'angle de rotation φ=180°, et en ce que la distance (aI) entre un point d'appui de bascule de contact (P) et la première borne de raccordement de conducteur (24I) est plus petite que la distance (aII) entre le point d'appui de bascule de contact (P) et la deuxième borne de raccordement de conducteur (24II).
  2. Interrupteur électrique à tirette suivant la revendication 1, caractérisé en ce que trois ou quatre bornes de raccordement de conducteur (24) sans vis sont de préférence agencées sur le socle de boîtier (1) centralement symétrique.
EP91103699A 1990-03-15 1991-03-11 Interrupteur à tirette électrique Expired - Lifetime EP0446842B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9002939U 1990-03-15
DE9002939U DE9002939U1 (de) 1990-03-15 1990-03-15 Elektrischer Zugschalter

Publications (2)

Publication Number Publication Date
EP0446842A1 EP0446842A1 (fr) 1991-09-18
EP0446842B1 true EP0446842B1 (fr) 1994-08-31

Family

ID=6851922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103699A Expired - Lifetime EP0446842B1 (fr) 1990-03-15 1991-03-11 Interrupteur à tirette électrique

Country Status (2)

Country Link
EP (1) EP0446842B1 (fr)
DE (2) DE9002939U1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL110172C (fr) * 1958-02-27
DE2646853A1 (de) * 1976-10-16 1978-04-20 Giersiepen Eltech Ind Elektrischer zugschalter
DE3214460A1 (de) * 1982-04-20 1983-10-27 Brown, Boveri & Cie Ag, 6800 Mannheim Elektromagnetisches schaltgeraet mit schraubenlosen klemmanschlusskoerpern
FR2551913B1 (fr) * 1983-09-12 1986-10-03 Legrand Sa Interrupteur a commande a tirage et tete de commande a tirage pour un tel interrupteur

Also Published As

Publication number Publication date
EP0446842A1 (fr) 1991-09-18
DE9002939U1 (de) 1990-05-17
DE59102679D1 (de) 1994-10-06

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