EP0112483B1 - Interrupteur électrique à bouton poussoir avec balancier d'actionnement - Google Patents

Interrupteur électrique à bouton poussoir avec balancier d'actionnement Download PDF

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Publication number
EP0112483B1
EP0112483B1 EP83111421A EP83111421A EP0112483B1 EP 0112483 B1 EP0112483 B1 EP 0112483B1 EP 83111421 A EP83111421 A EP 83111421A EP 83111421 A EP83111421 A EP 83111421A EP 0112483 B1 EP0112483 B1 EP 0112483B1
Authority
EP
European Patent Office
Prior art keywords
pressure
pushbutton
stirrup
base
pressure stirrup
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
EP83111421A
Other languages
German (de)
English (en)
Other versions
EP0112483A1 (fr
Inventor
Werner Schmalenbach
Leo Dipl.-Ing. Mittler
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
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 Brown Boveri und Cie AG Germany filed Critical Brown Boveri und Cie AG Germany
Priority to AT83111421T priority Critical patent/ATE29619T1/de
Publication of EP0112483A1 publication Critical patent/EP0112483A1/fr
Application granted granted Critical
Publication of EP0112483B1 publication Critical patent/EP0112483B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/60—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force with contact-driving member moved alternately in opposite directions

Definitions

  • the invention relates to an electrical push button switch mentioned in the preamble of claim 1.
  • Pushbutton switches are generally constructed as bistable switches. Here, the linear movement of a push button is converted into a tilting movement acting on the electrical switching element with the aid of a switching mechanism. Each time the push button is pressed again, the switching element assumes the other of the two possible switching positions.
  • a pushbutton acts on a pressure bracket, which engages in depressions with its tappets molded on both sides in corresponding formations in a tilting element which engages in the each other tilt position is pushed. Since the tilting element is in turn in operative connection with a contact element, its change in position leads to an electrical switchover.
  • a coil spring which can be subjected to pressure and is inserted between the pressure bracket and the tilting element is used.
  • GB-A-875 203 discloses a push-button switch which, as a one-piece and rigid contact rocker which unites the tilting element and the contact element, has the contact arm 5, which can be pivoted in a groove-shaped seat is stored.
  • the “operating arm 3” corresponding to the push bar of the subject matter of the invention is assigned to the push button, and its translation guidance is also taken over by parts of the push button.
  • the increasing automation in the field of series products not only forces the number of components to be reduced to the necessary minimum, but also enables their mechanical assembly by means of an appropriate design of the components.
  • the number of components can be reduced even further in the known switch designs and the structure of the switching mechanism can be made even more suitable for mechanical assembly.
  • the object of the invention is to provide a pushbutton switch that manages with as few parts as possible, these parts should at the same time be designed so that automatic assembly is possible.
  • the combination of a contact element and a tilting element, which is known to be carried out, to form a one-piece contact rocker carrying a switching link reduces the number of parts and simplifies assembly.
  • automated assembly is facilitated in that the contact rocker, which can be pivoted on a stationary bearing web, can be inserted very easily into the base of the switch.
  • the pressure bracket which acts as a swivel slide, since it is equipped in the area of its swivel axis with bearing journals which are mounted and guided in grooves or elongated holes, with a lateral movement causing a swivel movement and a translational movement of the pressure bracket due to sliding up and down in the space between the push button and the rocker switch. This ensures reliable guidance and defined positioning of the pressure bracket.
  • the grooves recessed on the inside of the guide walls formed on the base extension are widened like a funnel in the area of the opening of the base extension. This makes it easier to insert the pressure bracket into the base.
  • the upper funnel-like area of the grooves is separated from the lower action area in which the bearing pins of the pressure bracket can slide by elastic lugs, so that the bearing pins attached to the pressure bracket slide down on funnel-like bevels of the grooves and after the elastic lugs have jumped over into the grooves or Can snap slots.
  • These lugs also act as stops and thus determine the rest position of the pressure bracket.
  • the compression spring can be easily attached.
  • the self-clamping fastening of the compression spring on the pin of the pressure bracket also enables these two parts to be preassembled.
  • the compression spring can also be fastened in a self-clamping manner on the pin of the contact rocker, as a result of which the pressure bracket, compression spring and contact rocker can then be mounted as one structural unit in the base.
  • the push button switch Since the push button switch must fit into standard flush-mounted boxes. it is advantageous if it has only a small overall height. A feature that contributes decisively to this is the arrangement of the bearing pins on the pressure bracket, which is carried out so that the pivot axis of the pressure bracket lies between the two ends of the compression spring. This and also due to the small mutual distance between the plunger of the pressure bracket engaging in the switching link, it is possible with a very small switching stroke, the under 3 mm to achieve a defined switchover.
  • the compression spring is surrounded on both sides by the same, symmetrically opposing parts of the pressure bracket and the pressure wedges formed on the pushbutton. This also results in a symmetrical distribution of the compressive forces and prevents unwanted tilting of the parts in contact with the compression spring.
  • the swivel angle of the pressure bracket is determined by a corresponding design of the base attachment side walls forming the swivel space, which serve as a stop.
  • the pushbutton switch can also be designed as a multiple switch with two or more contact rockers and two or more pressure brackets. By appropriate design of the push button and push bar, several switching units can be switched together or separately. Good parallel guidance must also be ensured for the pushbuttons.
  • the base is provided with a base attachment which the pushbutton detects all around in the sliding fit, with the pushbutton only having to be snapped onto the already preassembled base in a manner known per se by means of locking elements.
  • the base has guide holes into which guide pins formed on the pushbutton are inserted.
  • the pushbutton switch has a base 10, in which a one-piece contact rocker 2 carrying a switching link is pivotally mounted on a bearing web 1 of a fixed contact part.
  • the switching link 3 has corresponding recesses in which the stub 5 of a pressure bracket 4 designed as a pivoting slide can engage.
  • the pressure bracket 4 is also provided with journals 8, which can slide in grooves 9, which in turn are formed in guide walls 21 of the base extension 15.
  • Pressure wedges 13 are formed on a pushbutton 11 and engage with their tips in wedge-shaped recesses 14 of the pressure bracket 4.
  • the bistable switching behavior of the pressure switch is determined by a spiral compression spring 6.
  • This compression spring 6 is plugged with its two ends onto pins 7, 20, the first pin 7 being formed centrally within the pressure bracket 4 and the second pin 20 in the middle on the switching link 3. Via the pressure bracket 4 and the pressure wedges 13, the compression spring 6 acts on the push button 11 and ensures that it returns to its starting position after actuation.
  • the plungers 5 of the pressure bracket 4 assume such a position on one side that they are located above a recess in the switching link 3.
  • the plunger 5 engages in the switching link 3 so that it is pressed downwards on one side.
  • the contact rocker 2 tilts into the other switching position.
  • the push button switches shown are bistable switches.
  • a clean parallel guidance of the pushbutton 11 is ensured by the fact that, as in FIG. 4, the exemplary embodiment of a double switch shown, base lugs 15 are formed on the base, which are closely enclosed by the walls of the push button 11 in the sliding fit.
  • guide pins 16, 17 are formed on the push button 11, which plunge into corresponding guide holes 18, 19 of the base 10.
  • the compression spring 6 is surrounded on both sides by the same, symmetrically opposing parts of the pressure bracket 4 of the contact rocker 2 and the pressure wedges 13 formed on the push button 11.
  • the push-button switch is installed in such a way that the fixed contact parts are first introduced into the base 10. Then the contact rocker 2 is placed on the bearing web 1. The pressure bracket 4 is now pressed into the base 10 via funnel-like bevels of the grooves 9. The bearing pins 8 of the pressure bracket 4 slide over the elastic lugs 23 into the grooves 9. The lugs 23 prevent the pressure bracket 4 from sliding back.
  • the entire internal switching mechanism thus lies below the level of the support ring 12 lying on the wall.
  • the support ring 12 can be made completely flat and fastened to the base 10 by means of rivets, screws or locking members.

Landscapes

  • Push-Button Switches (AREA)
  • Pens And Brushes (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Alcoholic Beverages (AREA)
  • Noodles (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Switches With Compound Operations (AREA)

Claims (9)

1. Interrupteur électrique à bouton-poussoir, comportant : un bouton-poussoir (11) ; un socle (10) ; un étrier de poussée (4) monté à pivotement, réalisé sous la forme d'un coulisseau pivotant ; une bascule de contact (2) faite d'une seule pièce, portant une coulisse de commutation (3) et pouvant être amenée, par basculement autour d'un palier fixe, à deux positions de commutation stables, la coulisse de commutation (3) étant en prise alternée avec des poussoirs (5) de l'étrier de poussée (4) et provoquant chaque commutation ; et un ressort de compression (6) hélicoïdal agencé entre l'étrier de poussée (4) et la bascule de contact (2) et prenant appui d'une part sur la coulisse de commutation (3) et d'autre part sur l'étrier de poussée (4), ce ressort de compression stabilisant chaque position de commutation, caractérisé par le fait que le socle (10) est muni d'un ou plusieurs saillants (15) entourant étroitement le bouton-poussoir (11) en lui offrant une portée de coulissement, par le fait que des rainures (9) ou des trous allongés sont aménagés sur le côté intérieur des parois de guidage (21) formées sur le ou les saillants (15) du socle, par le fait que des tétons d'appui formés dans la région de l'axe de pivotement de l'étrier de poussée (4) sont supportés et guidés dans les rainures (9) ou les trous allongés, ce qui autorise un mouvement de pivotement et de translation de l'étrier de poussée (4) dans l'espace entre bouton-poussoir (11) et bascule de contact (2), par le fait que, dans la région de l'ouverture du ou des saillants (15) du socle, les rainures (9) ou trous allongés sont élargis vers le haut, en forme d'entonnoir, par le fait que cette région supérieure est séparée, par des becs élastiques (23), d'une région inférieure dans laquelle les tétons d'appui (8) de l'étrier de poussée (4) peuvent glisser, ces becs ayant un effet de butée déterminant la position de repos de l'étrier de poussée (4) et par le fait que le palier fixe pour la bascule de contact (2) est réalisé en tant que nervure (1).
2. Interrupteur à bouton-poussoir selon revendication 1, caractérisé par le fait que des tétons (7, 20) sont agencés centralement à l'intérieur de l'étrier de poussée (4) et dans la région de la coulisse de commutation (3) sur la bascule de contact (2), les deux extrémités du ressort de compression (6) étant emboîtées sur ces tétons, le ressort de compression (6f étant maintenu par auto-serrage sur le téton (7) de l'étrier de poussée (4).
3. Interrupteur à bouton-poussoir selon revendication 1 ou 2, caractérisé par le fait que l'axe de pivotement de l'étrier de poussée (4), constitué par les tétons d'appui (8), se trouve entre les deux extrémités du ressort de compression (6).
4. Interrupteur à bouton-poussoir selon l'une quelconque des revendications précédentes, caractérisé par le fait que des coins de poussée (13) sont formés sur le bouton-poussoir (11) et s'engagent dans des évidements (14) de l'étrier de poussée (4) qui sont en forme de coin, sont ouverts vers le haut et ont leurs pointes situées dans la région de l'axe de pivotement de l'étrier de poussée (4).
5. Interrupteur à bouton-poussoir selon revendication 4, caractérisé par le fait que le ressort de compression (6) est entouré des deux côtés par des parties identiques de l'étrier de poussée (4) qui sont symétriquement en vis-à-vis, et par les coins de poussée (13) aménagés sur le bouton-poussoir (11).
6. Interrupteur à bouton-poussoir selon l'une quelconque des revendications précédentes, caractérisé par le fait que l'angle de pivotement de l'étrier de poussée (4) est déterminé par une configuration correspondante des parois latérales (22) du ou des saillants du socle qui forment l'espace de pivotement et servent de butée.
7. Interrupteur à bouton-poussoir selon l'une quelconque des revendications précédentes, caractérisé par le fait que, réalisé en tant qu'interrupteur multiple, il comporte au moins deux bascules de contact (2) et au moins deux étriers de poussée (4), le bouton-poussoir (11) étant également au moins en double.
8. Interrupteur à bouton-poussoir selon l'une quelconque des revendications 1 à 6, caractérisé par le fait que, réalisé en tant qu'interrupteur multiple, il comporte au moins deux bascules de contact (2) et au moins deux étriers de poussée (4) rigidement liés par une barrette, le bouton-poussoir (11) étant commun à toutes les unités de commutation.
9. Interrupteur à bouton-poussoir selon l'une quelconque des revendications précédentes, caractérisé par le fait que le socle (10) possède des trous de guidage (18, 19) dans lesquels plongent des tétons de guidage (16, 17) formés sur le bouton-poussoir (11).
EP83111421A 1982-12-21 1983-11-15 Interrupteur électrique à bouton poussoir avec balancier d'actionnement Expired EP0112483B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111421T ATE29619T1 (de) 1982-12-21 1983-11-15 Elektrischer drucktastenschalter mit einem schwenkbar gelagerten druckbuegel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3247319 1982-12-21
DE19823247319 DE3247319A1 (de) 1982-12-21 1982-12-21 Elektrischer drucktastenschalter mit einem schwenkbar gelagerten druckbuegel

Publications (2)

Publication Number Publication Date
EP0112483A1 EP0112483A1 (fr) 1984-07-04
EP0112483B1 true EP0112483B1 (fr) 1987-09-09

Family

ID=6181292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111421A Expired EP0112483B1 (fr) 1982-12-21 1983-11-15 Interrupteur électrique à bouton poussoir avec balancier d'actionnement

Country Status (5)

Country Link
EP (1) EP0112483B1 (fr)
AT (1) ATE29619T1 (fr)
DE (2) DE3247319A1 (fr)
FI (1) FI77745C (fr)
NO (1) NO161409C (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535974A1 (de) * 1985-10-09 1987-04-09 Bbc Brown Boveri & Cie Parallelfuehrung einer drucktaste bei einem drucktastenschalter
DE3625548A1 (de) * 1986-07-29 1988-02-18 Bbc Brown Boveri & Cie Automatisch montierbarer elektrischer drucktastenschalter mit einem schwenkbar gelagerten druckbuegel
DE3724736C2 (de) * 1987-07-25 1998-02-19 Teves Gmbh Alfred Elektrischer Schalter, insbesondere für Kraftfahrzeuge
IT211825Z2 (it) * 1987-09-09 1989-05-25 Gallone Cesare Interruttore ad azionamento automatico.
DE4239707C2 (de) * 1992-11-26 2003-07-31 Abb Patent Gmbh Elektrisches Schaltgerät
GB9310996D0 (en) * 1993-05-27 1993-07-14 Delta Schoeller Ltd Electrical switch
DE20117514U1 (de) 2001-10-26 2002-01-17 DREEFS GmbH Schaltgeräte und Systeme, 96364 Marktrodach Wippenschalter
DE10254992B4 (de) * 2002-11-26 2013-03-28 Marquardt Gmbh Elektrischer Schalter
WO2006076870A1 (fr) * 2005-01-21 2006-07-27 Clipsal Asia Holdings Limited Interrupteur a bascule actionne par un bouton-poussoir
DE102006041951B4 (de) * 2006-08-30 2022-05-05 Deltatech Controls Usa, Llc Wippschalter
DE102019117257A1 (de) * 2019-06-26 2020-12-31 Abb Schweiz Ag Schalter mit einer bewegbaren Schalterabdeckung
CN114639568B (zh) * 2022-03-30 2024-03-15 宁波公牛电器有限公司 开关
CN115241006B (zh) * 2022-07-25 2024-06-21 重庆长安汽车股份有限公司 一种方向盘开关按键结构及方向盘

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001741B (de) * 1951-10-17 1957-01-31 Goesta Ludvig Hellstroem Druckknopfschalter
DE1166874B (de) * 1953-12-04 1964-04-02 Gustav Adolf Waahlstroem Elektrischer Druckknopfschalter mit Kontaktwippe
DE1165125B (de) * 1955-06-28 1964-03-12 Svenska Relaefabriken Ab Elektrischer Tastschalter mit zwei stabilen Schaltstellungen
DE1061867B (de) * 1957-08-08 1959-07-23 Busch Jaeger Duerener Metall Druckknopfschalter mit mehreren federbeeinflussten, eine Platte durchdringenden Schaltknoepfen
IT1028463B (it) * 1975-01-20 1979-01-30 Bassani Spa Meccanismo per interruttore elettrico impiegabile sia con comando a leva oscillabile e sia con comando a pulsante
CH647093A5 (en) * 1979-12-27 1984-12-28 Feller Ag Electrical push-button switch
DE3046831C2 (de) * 1980-12-12 1985-03-14 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Elektrischer Schalter, insbesondere Druckknopfschalter

Also Published As

Publication number Publication date
FI834606A0 (fi) 1983-12-15
EP0112483A1 (fr) 1984-07-04
DE3373588D1 (en) 1987-10-15
NO161409C (no) 1989-08-09
FI77745B (fi) 1988-12-30
FI77745C (fi) 1989-04-10
FI834606A (fi) 1984-06-22
NO161409B (no) 1989-05-02
ATE29619T1 (de) 1987-09-15
DE3247319A1 (de) 1984-06-28
NO834708L (no) 1984-06-22

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