EP0039402A2 - Commutateur à touche - Google Patents

Commutateur à touche Download PDF

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Publication number
EP0039402A2
EP0039402A2 EP81102026A EP81102026A EP0039402A2 EP 0039402 A2 EP0039402 A2 EP 0039402A2 EP 81102026 A EP81102026 A EP 81102026A EP 81102026 A EP81102026 A EP 81102026A EP 0039402 A2 EP0039402 A2 EP 0039402A2
Authority
EP
European Patent Office
Prior art keywords
key
button
switch according
key switch
actuation
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.)
Granted
Application number
EP81102026A
Other languages
German (de)
English (en)
Other versions
EP0039402A3 (en
EP0039402B1 (fr
Inventor
Helmut Sichert
Heinz Ing. Abitz
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.)
Dr Eugen Sasse Bauelemente fur Die Elektron GmbH
Original Assignee
Dr Eugen Sasse & Co KG GmbH
Dr Eugen Sasse Bauelemente fur Die Elektronik GmbH
Sasse Eugen Co KG Dr GmbH
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 Dr Eugen Sasse & Co KG GmbH, Dr Eugen Sasse Bauelemente fur Die Elektronik GmbH, Sasse Eugen Co KG Dr GmbH filed Critical Dr Eugen Sasse & Co KG GmbH
Priority to AT81102026T priority Critical patent/ATE16655T1/de
Publication of EP0039402A2 publication Critical patent/EP0039402A2/fr
Publication of EP0039402A3 publication Critical patent/EP0039402A3/de
Application granted granted Critical
Publication of EP0039402B1 publication Critical patent/EP0039402B1/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
    • H01H13/64—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 wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • 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
    • H01H13/568—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 the contact also returning by some external action, e.g. interlocking, protection, remote control

Definitions

  • the invention relates to a pushbutton switch with a pushbutton shaft that is guided in a frame counter to its axial actuation direction, biased in the rest position and actuates at least one contact spring set in its working position, and with a switching lock that locks the pushbutton shaft in the working position and releases it when it is actuated again.
  • Such pushbuttons are preferably used in telecommunications systems, for example in telephone sets, to control the operating state, for example from the dialing state to the receiving state and vice versa, and on the other hand to control another function, such as listening in.
  • a key switch of the type mentioned is already described in DE-PS 1 179 259.
  • This known pushbutton switch is designed for double-pressure actuation, a pushbutton shaft actuating the contact spring sets being locked by means of a key switch when depressed for the first time and releasable from the locked working position when depressed again.
  • the key switch used has a backdrop with a heart curve, in which a guide attached to the push-button shaft and movable with it pin slides and automatically ensures the locking or the release of the push-button shaft when passing through the heart curve.
  • the object of the invention is therefore to provide a push button switch of the type mentioned, with which at least two mutually independent radio tions are executable, one of which in turn is independent of whether the key shaft is in the locked working position, whereby the locking position of the key switch can also be released independently of the key actuation by external mechanical control.
  • the key shaft is designed as an annular outer key and that an inner key actuating at least one other contact spring set is guided in the outer key counter to its direction of actuation and is prestressed independently of this in the rest position, advantageously the rest positions of the outer key and the inner key are set independently.
  • the inner key and the outer key can be moved together against their bias in the locked working position of the outer key and that the switching stroke of the inner key is shorter than that of the outer key.
  • the working position of the inner key is an unlocked key position.
  • the locking position of the key switch can be released independently of the key actuation by mechanical external control.
  • An important advantage of the invention is that two mutually independent switch functions can be carried out with a key switch that is just as compact and handy as a key switch that can only perform one function.
  • both the pushbutton switch, which is designed as a double switch, and the external control of the switch lock can be designed to be very simple and reliable.
  • the release of the locking position of the key switch by external mechanical control independently of a key actuation has already been described and claimed in connection with the simple key switch in the older patent application P 29 47 147.4-34 * using several embodiments. Full reference is made here to the entire disclosure content of this earlier patent application, insofar as the releasability of the locking position of the key switch plays a role independently of the key actuation by mechanical external control.
  • the sub-claims 8 to 20 define further developments of a particularly preferred embodiment, which is characterized by a very compact and simple structure, which requires the assembly of only a few individual parts in a few steps and yet ensures a safe and low-friction mode of operation.
  • this embodiment it is possible to produce essentially all plastic parts in a simple manner in large series.
  • a push button switch 1 comprises a frame 3 which is designed as a guide housing for an annular outer button 30.
  • the guide housing 3 comprises a head part 42 designed as a sliding bush, to which two opposite walls 43, 44 connect, as shown in FIGS. 1 and 2, which extend to the bottom region of the pushbutton switch 1, where a contact base 40 is inserted by means of a spring-loaded latching engagement is.
  • stop surfaces 4 are provided on the head piece of the guide housing .3, which protrudes radially inward into the movement path of the springs 46 sliding in the guide grooves 45 and forms an end stop which defines the rest position of the outer button 30, as shown in Fig. 1.
  • the outer button 30 is formed with a coaxial recess 35 which is delimited inwardly by a stop surface 33.
  • a head piece 23 of an inner key 20 is inserted into the recess 35, which just fills the recess 35 when it comes into contact with the ring stop 33 in the recess 35 with a ring stop 25 formed thereon.
  • the ring stop 25 delimits an extension of the inner circumference of the Inner key with which it engages through an opening delimited by the ring stop 33 in the recess 35 of the outer key.
  • the extension of the inner key 20 is hollow and penetrated by an anchor pin 22 which is anchored to a head part forming the touch surface on the outer edge of the head piece 23 of the inner key 20 and has been firmly connected at its other end to a switching element 24 of the inner key 20, for example by welding or riveting or screwing.
  • the contact piece 24 of the inner key 20 is provided with stop webs 27 which are offset by 90 ° to the tongue and groove connections between the outer key 30 and the guide housing 3 and extend radially beyond the outer circumference of the outer key 30.
  • the head piece 42 of the guide housing 3 has further stop faces 5, which are offset by 90 ° from the stop faces 4 described above and radially inward into the path of movement of the stop webs 27 of the contact piece 24 of the inner button 20 extend and thereby define the rest position of the inner button 20, which is shown in FIGS. 3 and 4.
  • the switching element 24 of the inner key 20 is guided with its stop webs 27 in sliding slots 31 which are formed in the outer key 30.
  • the parts of the inner button 20 which were initially separated from one another were inserted into the prefabricated recesses in the outer button 30, namely the head piece 23 with the anchor pin 22 inserted from above into the recess 35 in the outer button 30 and the switching piece 24 through the sliding slots 31 in the outer button 30. After these parts have been brought into their final position, the anchor pin 22 and the contact piece 24 have been firmly connected to one another.
  • Two compression springs 26 and 36 are provided, which independently bias the inner button 20 and the outer button 30 into their rest position.
  • a special feature of the embodiment according to FIGS. 1 to 5 is that the two compression springs 26 and 36 are arranged one behind the other coaxially with the inner key 20 and the outer key 30 and the slide guides are thereby easily held free of canting.
  • the compression spring 36 which prestresses the outer button 30 is supported on the one hand on the bridge part 50 of the outer button 30, where it is held by an anchor nose 52, and on the other hand on an anchor nose on the contact base 40.
  • the compression spring 26 which prestresses the inner key 20 in turn is supported on the one hand on the bridge part 50, where it is held by an anchor nose 51, and on the other hand on the contact piece 24 of the inner key 20, where it is held by a thickened head of the anchor pin 22.
  • the ⁇ switching piece 24 of the inner button 20 further has a protruding in the direction of actuation switch cam 21, as shown in FIGS. 3 and 4 show.
  • the switching cam 21 is formed with a run-up slope, which is arranged radially outward from the center plane of the inner button 20 and the outer button 30 at a distance which corresponds essentially to the distance of the run-up slopes of switching cams 34 of the outer button 30.
  • This makes it possible to arrange contact sets 29, which are actuated by the inner key 20, and contact sets 39, which are actuated by the outer key 30, in a common plane.
  • this makes it possible to keep a space for the outer button 30 between the contact sets 29 and 39 free and thereby keep the overall height of the entire push button switch as low as possible.
  • this configuration makes it possible to arrange contact sets 29 to be actuated by the inner key 20 next to contact sets 39 to be operated by the outer key 30, the contact sets 29 being arranged in the region of the sliding slots 31 of the outer key 30.
  • a switching lock 60 is provided on the wall 44 of the guide housing 3, which comprises a rocker 70 which is articulated on the wall 44 via a bearing 71.
  • the rocker 70 carries a switching link 65 which is designed as a heart curve and is biased into its rest position by means of a compression spring 73.
  • a guide pin 61 which cooperates with the heart curve of the shifting gate 65 and which projects outwards through an opening in the wall 44 of the guide housing 3.
  • the guide pin 61 In the locked working position of the outside button, the guide pin 61 is held in the heart curve of the switching link 65.
  • the Guide pin 61 In the rest position of the outer button 30 is the Guide pin 61 outside the switching link 65.
  • the heart curve causes in a known manner that when the outer button is pressed, the guide pin 61 slides into the heart curve and is anchored there, while the next time the outer button 30 is pressed, the guide pin 61 is released again from the heart curve.
  • FIGS. 1, 2 and 5 An essential feature of the embodiment according to FIGS. 1 to 5 can be seen in FIGS. 1, 2 and 5.
  • the cooperating with the switching lock 60 guide pin 61 is attached to one of the two walls of the outer button 30, namely the wall 48, which is non-displaceably coupled to the guide housing 30 in the transverse direction by the sliding guide of a spring 46 in a groove 45.
  • canting in the sliding guides of the switch parts during sliding of the guide pin 61 into or out of the switching link 65 is largely absorbed so that no obstruction of the sliding movements occurs.
  • a frame 10 is provided with a base 11, on which on the one hand a bearing block 13 for a release lever 15 and on the other hand an upwardly projecting holder 12 for the actual push button switch 1 are formed or attached.
  • the bracket 12 and the bracket 13 are aligned with each other such that one end of the trigger lever 15 pivotally mounted on the journal 14 of the bracket 13 can engage with an actuating element 72 which is provided on the switching mechanism 60.
  • the arm 82 of the release lever projecting from the push button switch 1 15 can be actuated by a fork plunger 16, which moves when a handset 17 is placed or picked up together with the fork 18 of a telephone set.
  • a fork plunger 16 which moves when a handset 17 is placed or picked up together with the fork 18 of a telephone set.
  • Fig. 10 shows the key switch 1 with its outer key 30 in the locked working position. Since the working position of the inner key 20 is an unlocked key position in this embodiment, the inner key 20 is in the rest position and projects upwards via the outer key 30. 11 shows the switch lock 60 pivoted into the release position and the outside button 30 in its rest position, in which it completely covers the inside button 20 on the side. Further details on the mode of operation of the embodiment shown in FIGS. 10 and 11 can be found in the older German patent application P 29 47 147.4-34, the disclosure content of which is incorporated in its entirety.
  • FIGS. 6 to 9 show in a further embodiment a key switch 101, in which all parts which correspond to parts in the embodiment according to FIGS. 1 to 5, are designated by a reference number which are exactly larger by the number 100.
  • An outer button 130 is guided in a head piece 142 of a frame 103 designed as a sliding bushing and has a stop part 136 which, when the outer button 130 is in the rest position, rests against a stop face 104 of the head piece from the inside.
  • An inner button 120 is inserted with its head piece 123 into a recess 135 in the head of the outer button 130.
  • An anchor sleeve provided on the head piece 123 extends through a recess in the outer button 130 and is firmly connected on the other side of the recess to a switching element 124, specifically by a resilient locking lug 122 provided on the switching element 124, which is clipped into the locking sleeve.
  • a guide shaft 128 is assigned to the inner button 120 and a guide shaft 128 to the outer button 130.
  • Each guide shaft is surrounded by a helical spring 137, which is supported on the one hand on a contact base 140 and on the other hand on the outer button 130 or the contact piece 124 of the inner button 120.
  • the guide shaft 128 of the inner key 120 is arranged coaxially with the inner key 120 and outer key 130. This ensures a tilt-free sliding guide of the inner button 120 in the outer button 130, the tilt-free sliding guide of the head piece 142 of the frame 103 is largely ensured that the associated guide shaft 138 can be arranged eccentrically.
  • the rest position of the inner key 120 is determined by the associated guide shaft 128, which passes through the contact base 140 into one on the outside thereof located recess 141 engages in this and has at its free end a stop ring 127 which is displaceable in the recess 141.
  • the outer key 130 has a stop 133 lying in front of the inner key 120 in the direction of actuation, against which the inner key 120 comes into contact with a complementary stop 125 when it is actuated, in which position the inner key 120 is completely accommodated in the recess 135 of the outer key and
  • the inside and outside buttons form a closed, continuous operating surface.
  • the parts 161, 165, 170, 171, 172 and 173 belonging to the switching lock 160 are directly comparable with the corresponding parts of the embodiment according to FIGS. 1 to 5 and are not described again here.
  • Both embodiments are designed so that the rest positions of the inner key and the outer key are fixed independently of one another, both keys are independently biased into their rest position and both keys can be moved together against their bias in the locked working position of the outer key.
  • the working position of the inner key is provided as an unlocked key position in both embodiments.

Landscapes

  • Push-Button Switches (AREA)
EP81102026A 1980-05-02 1981-03-18 Commutateur à touche Expired EP0039402B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102026T ATE16655T1 (de) 1980-05-02 1981-03-18 Tastschalter.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3016977 1980-05-02
DE3016977A DE3016977C2 (de) 1980-05-02 1980-05-02 Tastschalter
DE8012055U DE8012055U1 (de) 1980-05-02 1980-05-02 Tastschalter

Publications (3)

Publication Number Publication Date
EP0039402A2 true EP0039402A2 (fr) 1981-11-11
EP0039402A3 EP0039402A3 (en) 1982-05-05
EP0039402B1 EP0039402B1 (fr) 1985-11-21

Family

ID=25785284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102026A Expired EP0039402B1 (fr) 1980-05-02 1981-03-18 Commutateur à touche

Country Status (2)

Country Link
EP (1) EP0039402B1 (fr)
DE (2) DE8012055U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286924A (en) * 1994-02-23 1995-08-30 Delta Schoeller Ltd Electrical switch
EP1455039A2 (fr) * 2003-03-06 2004-09-08 Huf Hülsbeck & Fürst GmbH & Co. KG Dispositif d'actionnement motorisé et dispositif d'actionnement d'urgence manuel pour une serrure de couvercle ou de porte de véhicule, notamment pour une boíte à gants
FR2879341A1 (fr) * 2004-12-10 2006-06-16 Cibox Sa Dispositif de commande a double effet anti-panique et dispositif de verrouillage electromagnetique mettant en oeuvre un tel dispositif

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8012055U1 (de) * 1980-05-02 1980-09-04 Dr. Eugen Sasse Gmbh & Co Kg, 8540 Schwabach Tastschalter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136868A (en) * 1960-07-06 1964-06-09 Westinghouse Electric Corp Push-button control switch
DE1179259B (de) * 1963-02-08 1964-10-08 Eugen Sasse K G Dr Drucktaste mit Kontaktfedersaetzen fuer Fernmeldeanlagen
DE1932446A1 (de) * 1968-07-03 1970-07-16 Asea Ab Druckknopfschalter
DE2046438A1 (de) * 1970-09-21 1972-03-23 Nordmende Tastenschalter für wenigstens zwei Bedienungsfunktionen für elektrische Geräte
DE2842803A1 (de) * 1977-09-30 1979-04-12 Lucas Industries Ltd Elektrischer schalter
DE8012055U1 (de) * 1980-05-02 1980-09-04 Dr. Eugen Sasse Gmbh & Co Kg, 8540 Schwabach Tastschalter
EP0029489A2 (fr) * 1979-11-22 1981-06-03 Dr. Eugen Sasse GmbH & Co. KG Commutateur à touche

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136868A (en) * 1960-07-06 1964-06-09 Westinghouse Electric Corp Push-button control switch
DE1179259B (de) * 1963-02-08 1964-10-08 Eugen Sasse K G Dr Drucktaste mit Kontaktfedersaetzen fuer Fernmeldeanlagen
DE1932446A1 (de) * 1968-07-03 1970-07-16 Asea Ab Druckknopfschalter
DE2046438A1 (de) * 1970-09-21 1972-03-23 Nordmende Tastenschalter für wenigstens zwei Bedienungsfunktionen für elektrische Geräte
DE2842803A1 (de) * 1977-09-30 1979-04-12 Lucas Industries Ltd Elektrischer schalter
EP0029489A2 (fr) * 1979-11-22 1981-06-03 Dr. Eugen Sasse GmbH & Co. KG Commutateur à touche
DE8012055U1 (de) * 1980-05-02 1980-09-04 Dr. Eugen Sasse Gmbh & Co Kg, 8540 Schwabach Tastschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286924A (en) * 1994-02-23 1995-08-30 Delta Schoeller Ltd Electrical switch
GB2286924B (en) * 1994-02-23 1998-01-07 Delta Schoeller Ltd Electrical switch
EP1455039A2 (fr) * 2003-03-06 2004-09-08 Huf Hülsbeck & Fürst GmbH & Co. KG Dispositif d'actionnement motorisé et dispositif d'actionnement d'urgence manuel pour une serrure de couvercle ou de porte de véhicule, notamment pour une boíte à gants
EP1455039A3 (fr) * 2003-03-06 2007-04-25 Huf Hülsbeck & Fürst GmbH & Co. KG Dispositif d'actionnement motorisé et dispositif d'actionnement d'urgence manuel pour une serrure de couvercle ou de porte de véhicule, notamment pour une boîte à gants
FR2879341A1 (fr) * 2004-12-10 2006-06-16 Cibox Sa Dispositif de commande a double effet anti-panique et dispositif de verrouillage electromagnetique mettant en oeuvre un tel dispositif

Also Published As

Publication number Publication date
DE8012055U1 (de) 1980-09-04
DE3016977C2 (de) 1984-04-05
EP0039402A3 (en) 1982-05-05
DE3016977A1 (de) 1981-11-19
EP0039402B1 (fr) 1985-11-21

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