EP0157002B1 - Interrupteur à bouton poussoir avec au moins un pont de contact - Google Patents

Interrupteur à bouton poussoir avec au moins un pont de contact Download PDF

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Publication number
EP0157002B1
EP0157002B1 EP84116146A EP84116146A EP0157002B1 EP 0157002 B1 EP0157002 B1 EP 0157002B1 EP 84116146 A EP84116146 A EP 84116146A EP 84116146 A EP84116146 A EP 84116146A EP 0157002 B1 EP0157002 B1 EP 0157002B1
Authority
EP
European Patent Office
Prior art keywords
switch
pushbutton
housing
slot
push button
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
EP84116146A
Other languages
German (de)
English (en)
Other versions
EP0157002A1 (fr
Inventor
Winfried Kirchner
Felix Dipl.-Ing. Lins (Fh)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0157002A1 publication Critical patent/EP0157002A1/fr
Application granted granted Critical
Publication of EP0157002B1 publication Critical patent/EP0157002B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2075—T-shaped bridge; bridging contact has lateral arm for mounting resiliently or on a pivot
    • 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
    • H01H13/562—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 making use of a heart shaped cam

Definitions

  • the invention relates to a push button switch with at least one switching bridge, which can be moved back and forth between two switching positions by means of a spring-loaded push button movably guided in the switch housing, the switching bridge in one position connecting two fixed contacts on the switch housing and in the other position of these Contacts is separated, in which switch the pushbutton for locking in the actuated position and for unlocking from this position by renewed actuation on a flattened side of its pushbutton shaft extending over the entire height of the switch housing has a heart-shaped design around a center pin provided with a recessed recess Has guide groove into which a slide movably guided in a transverse groove of the switch housing engages with a pin formed on it.
  • the invention has for its object to construct a push button switch according to the preamble of claim so that the pressing of the switching bridge against the housing-fixed contacts can be done by the spring returning the push button.
  • the switching bridge is arranged on a laterally protruding support part which can be fixedly mounted on the push-button shaft designed as a tubular extension, and in that the heart-shaped guide groove is extended downwards in the manner of a slot, the length of the slot being so dimensioned is that, under the action of the spring acting on the push button, the switching bridge comes into contact with the contacts fixed to the housing, without the pin resting against the end of the slot.
  • the assembly of the spring is particularly simple in that a coil spring is arranged concentrically on the tubular extension as a spring and is supported at one end on a projecting edge of the push button and at the other end in a circular recess in the switch housing.
  • the supporting part and the switching bridge are formed in one piece as a T-shaped contact piece, the T-bar forming the switching bridge and the T-shaped contact piece with its shaft in a through both walls of the tubular extension through transverse slot is inserted and locked by means of a locking tongue provided on the shaft in the cavity of the tubular extension.
  • a push-button 3 having a tubular extension 2 is slidably guided.
  • a helical spring 4 is arranged concentrically to the tubular extension 2 and is supported at one end on an edge 5 formed on the push button 3 and at the other end in a circular recess 6 of the switch housing 1.
  • a lateral projection 7 is formed, in which two contacts 8 fixed to the housing are arranged side by side. The contacts 8 fixed to the housing are connected to contact tabs 9 protruding from the projection 7.
  • a transverse groove 10 is provided, in which a slide 11 is movably guided.
  • a peg 12 is formed on the slide 11 and protrudes into a heart-shaped guide groove 14 formed on the flattened side 13 of the tubular extension 2.
  • the heart-shaped guide groove is guided around a central pin 15, which has a locking recess 16, in which the pin 12 bears against the central pin 15 in the one switching position, as shown in FIG. 1.
  • the lower tip 17 of the heart-shaped guide groove 14 merges into a slot 18.
  • a transverse slot 19 is provided, which passes through both walls of the tubular extension. This transverse slot 19 serves to receive a T-shaped contact piece 20, the T-bar 21 of which forms a switching bridge for the contacts 8 fixed to the housing.
  • the T-shaped contact piece 20 With its shaft 22, the T-shaped contact piece 20 is inserted into the transverse slot 19 on the tubular extension 2 of the push button 3.
  • a latching tongue 23 On the shaft 22 of the T-shaped contact piece 20, a latching tongue 23 is also provided which, after the shaft 22 has been inserted into the transverse slot 19, springs upwards in the cavity 24 of the tubular extension 2 and is thereby behind one wall of the tubular extension 2 hooked, so that the T-shaped contact piece 20 is thereby held on the tubular extension 2.
  • Fig. 1 the push button switch is shown in the switching position in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing.
  • the pin 12 of the slider 11 is located in the locking recess 16 of the central pin 15. This causes the push button 3 against the force of the screw.
  • Benfeder 4 held in the position shown, in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing.
  • the pin 12 abuts against the edge 25 of the guide groove 14 lying above the locking recess 15.
  • the slide 11 is hereby laterally displaced in the transverse groove 10, so that its pin 12 lies over the vertical part 26 of the heart-shaped guide groove 14.
  • the push button 3 When the push button 3 is released, it is now pressed upwards by the helical spring 4, the vertical part 26 of the heart-shaped guide groove 14 passing the pin 12. The pin 12 finally meets a lower run-up slope 27 of the heart-shaped guide groove 14 and slides along it, so that the slide 11 is again displaced in the transverse groove. Finally, the pin 12 passes through the slot 18.
  • the push button 3 is pressed upwards by the helical spring 4 until the switching bridge 21 rests on the contacts 8 fixed to the housing.
  • the contact pressure of the switching bridge 21 on the contacts fixed to the housing is exerted by the helical spring 4.
  • the length of the slot 18 is dimensioned such that the pin 12 does not yet abut the end of the slot 18 when the switching bridge 21 is in contact with the contacts 8 fixed to the housing.
  • the switching bridge 21 can freely contact the contacts 8 fixed to the housing.
  • An insertion groove 29 is formed in the right half of the heart-shaped guide groove 14, through which the slide 11 inserted into the transverse groove 10 from the outside can be inserted with its pin 12 into the heart-shaped guide groove 14.

Landscapes

  • Push-Button Switches (AREA)

Claims (3)

1. Interrupteur à bouton-poussoir comportant au moins un pont de contact (21), qui peut être déplacé en va-et-vient, entre deux positions de commutation, au moyen d'un bouton-poussoir (3) guidé de manière à se déplacer dans le boîtier de l'interrupteur et est chargé par un ressort, et dans lequel le pont de contact (21) relie, dans une position, deux contacts (8) montés fixes sur le boîtier (1) de l'interrupteur et, dans l'autre posi-- tion, est séparé de ces contacts (8), et dans lequel, en outre, pour son verrouillage dans la position actionnée et pour son déverrouillage à partir de cette position au moyen d'un actionnement réitéré, le bouton-poussoir (3) comporte, sur un côté plat de sa tige qui s'étend sur toute la hauteur du boîtier de l'interrupteur, une rainure de guidage (14) réalisée avec la forme d'un coeur, disposée autour d'un embout central (15) muni d'une cavité d'encliquetage et dans laquelle s'engage un embout formé par façonnage sur un poussoir (11) guidé de manière à être déplaçable dans une rainure transversale (10) du boîtier (1) de l'interrupteur, caractérisé par le fait que le pont de contact (21) est monté sur une partie de support qui fait saillie latéralement et peut être montée fixe sur la tige du bouton-poussoir réalisée sous la forme d'une partie saillante tubulaire (2), et que la rainure de guidage (14) en forme de coeur se prolonge vers le bas sous la forme d'une fente (18) dont la longueur est dimensionnée de telle sorte que le pont de contact (21) vient s'appliquer, sous l'action du ressort (4) agissant sur le bouton-poussoir (3), contre les contacts (8) solidaires du boîtier, sans que l'embout (12) du poussoir (11) s'applique contre l'extrémité de la fente (18).
2. Interrupteur à bouton-poussoir suivant la revendication 1, caractérisé par le fait que le ressort est réalisé sous la forme d'un ressort hélicoïdal (4) monté concentriquement sur la partie saillante tubulaire (2) et dont une extrémité prend appui sur un bord saillant (5) du bouton-poussoir (3) et dont l'autre extrémité prend appui dans un renforcement circulaire (6) du boîtier (1) de l'interrupteur.
3. Interrupteur à bouton-poussoir suivant la revendication 1 ou 2, caractérisé par le fait que l'organe de support et le pont de contact (21) sont réalisés d'un seul tenant sous la forme d'un organe de contact en forme de T (20), la barre horizontale du T formant le pont de contact (21), tandis que l'organe de contact en forme de T (20) est enfiché par sa tige (22) dans une fente transversale (19) s'étendant à travers les deux parois de la partie saillante tubulaire (2) et s'encliquetant au moyen d'une languette d'encliquetage (23) prévue sur la tige (22), dans la cavité (24) de la partie saillante tubulaire (2).
EP84116146A 1984-03-15 1984-12-21 Interrupteur à bouton poussoir avec au moins un pont de contact Expired EP0157002B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3409572 1984-03-15
DE19843409572 DE3409572A1 (de) 1984-03-15 1984-03-15 Druckknopfschalter mit mindestens einer schaltbruecke

Publications (2)

Publication Number Publication Date
EP0157002A1 EP0157002A1 (fr) 1985-10-09
EP0157002B1 true EP0157002B1 (fr) 1988-05-11

Family

ID=6230625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116146A Expired EP0157002B1 (fr) 1984-03-15 1984-12-21 Interrupteur à bouton poussoir avec au moins un pont de contact

Country Status (2)

Country Link
EP (1) EP0157002B1 (fr)
DE (3) DE8408000U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4805805B2 (ja) * 2006-12-27 2011-11-02 株式会社東海理化電機製作所 スイッチ装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB502943A (en) * 1937-09-02 1939-03-28 Asea Ab Arrangement of contacts for electrical switches
CH329893A (de) * 1955-02-18 1958-05-15 Bbc Brown Boveri & Cie Elektrischer Kontakt mit Doppelunterbrechung
GB1298262A (en) * 1970-04-07 1972-11-29 Electronic Components Ltd Improvements in or relating to push button switches
US3821528A (en) * 1973-02-08 1974-06-28 Oak Industries Inc Pushbutton switch latching mechanism
DE2416969C2 (de) * 1974-04-08 1982-10-28 Kautt & Bux Kg, 7000 Stuttgart Druckknopfschalter
DE2722813C2 (de) * 1977-05-20 1979-05-10 Petrick Gmbh Elektro-Mechanische Bauelemente, 3202 Bad Salzdetfurth Schiebetaste
DE2951582A1 (de) * 1979-12-21 1981-07-02 Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co, 8740 Bad Neustadt Elektrischer schalter

Also Published As

Publication number Publication date
DE8408000U1 (de) 1986-01-16
EP0157002A1 (fr) 1985-10-09
DE3409572A1 (de) 1985-09-19
DE3471198D1 (en) 1988-06-16

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