EP0158725A2 - Bouton-poussoir - Google Patents

Bouton-poussoir Download PDF

Info

Publication number
EP0158725A2
EP0158725A2 EP84115144A EP84115144A EP0158725A2 EP 0158725 A2 EP0158725 A2 EP 0158725A2 EP 84115144 A EP84115144 A EP 84115144A EP 84115144 A EP84115144 A EP 84115144A EP 0158725 A2 EP0158725 A2 EP 0158725A2
Authority
EP
European Patent Office
Prior art keywords
fixed contact
crosspiece
fixed
housing
attachment
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
EP84115144A
Other languages
German (de)
English (en)
Other versions
EP0158725A3 (en
EP0158725B1 (fr
Inventor
Eugène Dipl.-Ing. Dellaert
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
Priority to AT84115144T priority Critical patent/ATE38108T1/de
Publication of EP0158725A2 publication Critical patent/EP0158725A2/fr
Publication of EP0158725A3 publication Critical patent/EP0158725A3/de
Application granted granted Critical
Publication of EP0158725B1 publication Critical patent/EP0158725B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices
    • 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
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits

Definitions

  • the invention relates to a pushbutton with an actuating body which can be moved linearly in a key housing against the force of a spring element from a key base remote into a position close to the key base, with two pin-like fixed contacts provided next to one another on one side of the actuating body and running parallel to the direction of movement of the actuating body made of flat material cross piece, which is fixed on the side facing away from the actuating body of the two fixed contacts transversely to these and with its flat sides parallel to the course of the fixed contacts in the housing, and with at least one protruding from the cross piece at right angles, with this one-piece, U-shaped bent approach , which is resiliently designed to be supported with an end portion of its freely ending counter leg either on an associated fixed contact or on the actuating body.
  • Such a button is known from the E-PS 28 000.
  • the fixed contacts are formed by two pins anchored in a base plate and penetrating it.
  • a cross piece is provided with two mutually parallel lugs that protrude at right angles from the cross piece and are each bent in a U-shape.
  • the actuator body works with corre Chend formed projections or cams that move with the actuating body parallel to the course of the fixed contacts on the correspondingly wide free ends of the approaches of the crosspiece.
  • the crosspiece can also be cut between the approaches and be provided with connections that protrude from the button housing. This key can therefore be used to implement one or two-contact key functions as required.
  • the object of the present invention is therefore to design a key of the type mentioned at the outset in such a way that, while maintaining the basic key structure of the known key, a single-contact key which is relatively simple in comparison with this key is obtained.
  • the crosspiece has only a single U-shaped extension and is angled in the area between the two fixed contacts to form two crosspiece sections in such a way that a first crosspiece section provided with the extension is at a greater distance which cooperates with this approach has first fixed contact than the other second cross-section from the other second fixed contact and that from the second cross-section a with its free end is constantly resiliently supported on the second fixed contact, extending parallel to this fixed contact tab.
  • the second crosspiece section is supported on its side facing away from the second fixed contact on a housing wall inclined to the connecting line of the two fixed contacts, that the tab is provided with its free end facing away from a housing base plate and that the free end of the tab and the associated second fixed contact are coated with a tin layer at least in the mutual contact area.
  • This configuration of the pushbutton further improves the interaction of the crosspiece tab with the second fixed contact, in particular also the insertion of the crosspiece into the key housing.
  • the housing of the key has a lower part 7 with a base plate and side walls projecting at right angles from this.
  • the lower housing part 7 encloses an approximately cuboid interior.
  • An upper housing part 8 consists of a cover plate and side walls protruding from it at right angles, which overlap the side walls of the lower part when the lower and upper parts are joined together. Nose-like projections of the lower part engage in window-like recesses in the upper part when the lower and upper parts are joined and thereby latch the upper part to the lower part.
  • the lower part 7 is provided with a hollow cylindrical projection 9 which is open towards the upper part and runs coaxially with the axis 19 of the key.
  • An actuating body 10 has a central pin-like part which is guided in the hollow cylindrical extension 9 of the lower part.
  • a helical compression spring 11 is clamped between the lower housing part 7 or the base plate of the lower housing part and the shoulders of the actuating body 10 and holds the actuating body firmly in a position remote from the key base.
  • a cross piece 1 made of flat material is supported with its large surfaces at right angles to the base plate and thus parallel to the direction of actuation of the actuating body 10.
  • a shoulder 2 projecting at right angles from the cross piece is connected in one piece.
  • This approach 2 is U-shaped and thereby forms a movable contact with the free end 18 of its counter leg, which interacts with a first pin-shaped fixed contact 3a.
  • This fixed contact 3a penetrates the base plate of the lower part 7 and is anchored in it.
  • the fixed contact 3a is also aligned parallel to the direction of movement of the actuating body 10 and is arranged in the housing such that the actuating body 10 can move up and down in the housing next to the first fixed contact 3a with an actuating projection 12 projecting at right angles to its direction of movement.
  • the approach 2 on the crosspiece 1 is so wide that the free end 18 of the approach 2 can be supported either on the actuating projection 12 or on the first fixed contact 3a, depending on the position occupied by the actuating body.
  • the free end 18 of the attachment 2 is lifted from its associated first fixed contact 3a by the actuating projection 12. If the actuating body 10 is moved against the force of the helical compression spring 11 in the direction of the key base, the actuating element 10 also moves together with the actuating body 10 t Trentsvorsprung 12 down and thereby releases the free end 18 of the approach 2. This free end can thus resiliently lay against the first fixed contact 3a.
  • FIG. 2 shows, in addition to the first fixed contact 3a at the same distance from the key axis 19 and symmetrically to a plane 20 which bisects the key housing parallel to the axis 19, a second fixed contact 3b, which corresponds completely to the first fixed contact 3a, in the Anchored base plate.
  • the crosspiece 1, as shown in FIG. 4 in particular, is provided with an angled portion 21, as a result of which, in addition to a first crosspiece portion 4a from which the shoulder 2 protrudes, a second crosspiece portion 4b is formed, which is associated with the fixed contact 3b assigned to this portion has a substantially smaller distance than the first crosspiece section 4a from the first fixed contact 3a.
  • a flap 5 is bent out of the crosspiece without the crosspiece being widened thereby.
  • the crosspiece section 4b With the free end 6 of this tab 5, the crosspiece section 4b is supported on the second fixed contact 3b.
  • the free end 6 of the tab 5 is directed to the upper part 8 of the button housing.
  • a support wall 16, which is formed by the lower housing part 7, is provided on the side of the crosspiece section 4b facing away from the second fixed contact 3b.
  • Another section of the groove 14 is formed by a lower part side wall 17 and by a further housing protrusion of the lower part 7.
  • the cross piece 1 After the connection of the lower part 7 and the upper part 8, the cross piece 1 is fixed in a vibration-proof manner in the housing, so that the extension 2 can spring with its free end 18 depending on the position of the actuating body 10 against the first fixed contact 3a or through the actuating projection 12 from the first fixed contact 3a is lifted off without the connection between the second fixed contact 3b and the crosspiece section 4b being influenced by the tab 5.
  • these two parts can be coated with a tin layer, at least in the mutual contact area.

Landscapes

  • Push-Button Switches (AREA)
  • Massaging Devices (AREA)
  • Eye Examination Apparatus (AREA)
  • Switches With Compound Operations (AREA)
EP84115144A 1984-04-13 1984-12-11 Bouton-poussoir Expired EP0158725B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115144T ATE38108T1 (de) 1984-04-13 1984-12-11 Drucktaste.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3414114 1984-04-13
DE3414114 1984-04-13

Publications (3)

Publication Number Publication Date
EP0158725A2 true EP0158725A2 (fr) 1985-10-23
EP0158725A3 EP0158725A3 (en) 1986-11-12
EP0158725B1 EP0158725B1 (fr) 1988-10-19

Family

ID=6233564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115144A Expired EP0158725B1 (fr) 1984-04-13 1984-12-11 Bouton-poussoir

Country Status (5)

Country Link
EP (1) EP0158725B1 (fr)
JP (1) JPS60232623A (fr)
AT (1) ATE38108T1 (fr)
DE (2) DE8411745U1 (fr)
NO (1) NO851410L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9374102B1 (en) 2015-12-11 2016-06-21 Freescale Semiconductor, Inc. Dynamic analog to digital converter (ADC) triggering

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711789A1 (de) * 1987-04-08 1988-10-27 Kostal Leopold Gmbh & Co Kg Drucktastenschalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842229A (en) * 1973-07-05 1974-10-15 Texas Instruments Inc Keyboard pushbutton switch
FR2266946A1 (fr) * 1974-04-08 1975-10-31 Cts Corp
FR2304161A1 (fr) * 1975-03-13 1976-10-08 Marquardt J & J Interrupteur electrique, notamment pour touches de calculatrices electroniques
DE2823989A1 (de) * 1977-06-21 1979-01-18 Wabco Westinghouse Elektrischer kontaktgeber
EP0028000A1 (fr) * 1979-10-30 1981-05-06 Siemens Aktiengesellschaft Interrupteur à bouton-poussoir

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS537399U (fr) * 1976-07-02 1978-01-23
JPS578589U (fr) * 1980-06-16 1982-01-16

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842229A (en) * 1973-07-05 1974-10-15 Texas Instruments Inc Keyboard pushbutton switch
FR2266946A1 (fr) * 1974-04-08 1975-10-31 Cts Corp
FR2304161A1 (fr) * 1975-03-13 1976-10-08 Marquardt J & J Interrupteur electrique, notamment pour touches de calculatrices electroniques
DE2823989A1 (de) * 1977-06-21 1979-01-18 Wabco Westinghouse Elektrischer kontaktgeber
EP0028000A1 (fr) * 1979-10-30 1981-05-06 Siemens Aktiengesellschaft Interrupteur à bouton-poussoir

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MACHINE DESIGN, Band 53, Nr. 10, Mai 1981, Seiten 128-129, Cleveland, Ohio, US; J.H. WHITLEY: "Designing tin-plated contacts" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9374102B1 (en) 2015-12-11 2016-06-21 Freescale Semiconductor, Inc. Dynamic analog to digital converter (ADC) triggering

Also Published As

Publication number Publication date
ATE38108T1 (de) 1988-11-15
EP0158725A3 (en) 1986-11-12
NO851410L (no) 1985-10-14
JPS60232623A (ja) 1985-11-19
DE3474741D1 (en) 1988-11-24
DE8411745U1 (de) 1986-02-06
EP0158725B1 (fr) 1988-10-19

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