US3731030A - Pushbutton switch assembly with pivotable conductive bridging member and multiple conductive path printed circuit board - Google Patents

Pushbutton switch assembly with pivotable conductive bridging member and multiple conductive path printed circuit board Download PDF

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Publication number
US3731030A
US3731030A US00152163A US3731030DA US3731030A US 3731030 A US3731030 A US 3731030A US 00152163 A US00152163 A US 00152163A US 3731030D A US3731030D A US 3731030DA US 3731030 A US3731030 A US 3731030A
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US
United States
Prior art keywords
push
contact
housing
button
contact bridge
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
US00152163A
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English (en)
Inventor
W Holzer
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Holzer Patent AG
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Holzer Patent AG
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Filing date
Publication date
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Application granted granted Critical
Publication of US3731030A publication Critical patent/US3731030A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H1/403—Contacts forming part of a printed circuit
    • 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
    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard

Definitions

  • Each push-button switch is mounted within the housing by a spring which biases the switch in an upward direction and includes a spring engaging a contact piece so that depression of the push-button switch causes the contact piece to rock on a bearing element in contact with a conductive path of the printed circuit board.
  • a spring mounted between the housing and a portion of the contact bridge biases the contact bridge in a first position where a conductive path is formed by the contact bridge between the conductive bearing element and one contact on the bridge and movement of the contact bridge by depression of the push-button switch causes a new conductive path to be formed between another portion of the contact bridge, the conductive bearing element and another contact on the contact bridge.
  • the invention relates to in series attachable push- 5 button switches with power contacts and their use on printed circuit boards.
  • Push-button switches of the initially mentioned type already have been known. In the case of these known switching arrangements, however, every individual switch must be completely equipped and assembled by itself. Such switches naturally are very costly and expensive. Both the fixed contacts and the contact bridges must be separately attached in the housing or on the push-button slide, prior to the assembly of every individual switch.
  • the object of the invention to create a push-button switch of the initially mentioned type, where the drawbacks of known devices will be avoided and with which it will be possible to assemble anumber of individual switches very simply and at favorable cost in a switching aggregate. It should be possible furthermore to produce the contact bridge and fixed contact pieces if possible in only one work step.
  • the entire switch is to be structured as fiat as possible.
  • the object of the invention also is to provide a switch usable for electric devices where the printed circuit boards are built in; in this case the switch is to be capable of cooperating with the same printed circuit board of the electric device, so that additional electric connections will become superfluous. Besides, a jamming of the push buttons is to be made impossible.
  • a printed circuit board constitutes the lid of the contact housing and in that parts of the conductor paths serve as fixed contact pieces on which a contact bridge, which is underv spring tension, has been mounted and which on its part can be moved into the intended switching positions by operation of the pushbutton slide.
  • a compression spring fixed in the push-button slide, will move the contact bridge, when the push-button slide is pushed, into a switching position corresponding to the depressed switching state.
  • a guide piece will center the push-button switch.
  • the contact bridge is made of flat metal material.
  • a further development of the invention provides that the contact bridge be guided by the push-button slide.
  • a rib member represents an additional guidance structure, for the contact bridge.
  • the parts of the printed circuit boards serving as fixed contact pieces are reinforced by means of rivets.
  • FIG. I shows several push-button switches integrated in a push-button aggregate
  • FIG. 2 shows a longitudinal section through a push button
  • FIG. 3 shows a cross section through the push button, from which the guidance of the contact bridge by the push-button slide becomes clear.
  • An individual bush button (FIG. 2) consists essentially of a push-button slide bar 5, a push-button head 1, 2 as well as a contact bridge 15.
  • Contact bridge 15 connects various fixed contacts with each other, which are formed by conductor paths 6.
  • Conductor paths 6 are formed'on a printed circuit board 7.
  • contact bridge 15 is supported by a fixed contact by means of a bearing element 16 and because of its rocking operation contact bridge 15 can contact various conductor paths.
  • the fixed contacts are made up by conductor paths 6. These fixed contacts also can be reinforced additionally by means of rivets. Conductor paths 6 can be integral with a printed circuit, as becomes clear from FIG. 1.
  • Printed circuit board 7 represents the cover of the push button, with which the latter is closed. At the same time, however, printed circuit board 7 can be'the cover of an additional electric switching device, for example, of a programmed switching mechanism. In that case conductor paths 6 also can constitute fixed contacts of the switching device, or else additional conductor paths may be attached to the underside of printed circuit board 7, which then can be connected in a manner known per se with conductor paths 6, which have been shown.
  • buttons can be attached in series in one push-button aggregate.
  • the individual push buttons are attached by means of a projection 13 to printed circuit board 7 via screws or rivets or proper spring clips.
  • Push-button heads 1, 2 are guided in guide piece 3 and they may have either a rectangular or square shape (push-button head 1) or they may be round (push-button head 2).
  • Guide piece 3 either can be slipped on the housing 4 or it may be an integrated constituent part of said housing.
  • Contact bridge 15 is guided with the aid of push-button slide 5 (FIG. 3).
  • pushbutton slide 5 effectively will have projections 14.
  • Ribs 18 can be used additionally for this lateral guidance of contact bridge 15. To carry out the guidance of the contact bridge altogether with ribs 18 instead of only with slide 5 also is possible.
  • Push-button switch apparatus comprising:
  • said means including at least one push-button slide;
  • a compression spring mounted between said at least one push-button slide and an associated one of said at least one contact bridge for moving said contact bridge upon depression of said push-button slide; and an additional compression spring mounted between said at least one push-button slide and said housing for biasing an upper portion of said push-button slide above an upper surface of said housing.
  • Push-button switch apparatus as in claim 1 wherein said at least one contact bridge consists of a flat metal strip and further comprising means mounted within said housing for guiding said push-button slide therein.
  • Push-button switch apparatus as in claim 2 further comprising means mounted within said housing for preventing lateral movement of said at least one contact bridge.
  • Push-button switch apparatus as in claim 2 wherein said at least one push-button slide includes a bifurcated bottom portion, said flat metal strip is inserted within the ends of said bifurcated portion and said compression spring is mounted within the lower portion of said ,push-buttonslide between an internal shoulder thereof and said flat metal strip.
  • Pushbutton switch apparatus as in claim 1 wherein said contact housing comprises a number of contact housing elements and a number of contact bridges each mounted within a respectivecontact housing element, and each of said contact housing elements including a push-button slide.

Landscapes

  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
US00152163A 1970-06-17 1971-06-11 Pushbutton switch assembly with pivotable conductive bridging member and multiple conductive path printed circuit board Expired - Lifetime US3731030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH916870A CH514925A (de) 1970-06-17 1970-06-17 Aneinanderreihbarer Drucktastenschalter

Publications (1)

Publication Number Publication Date
US3731030A true US3731030A (en) 1973-05-01

Family

ID=4349077

Family Applications (1)

Application Number Title Priority Date Filing Date
US00152163A Expired - Lifetime US3731030A (en) 1970-06-17 1971-06-11 Pushbutton switch assembly with pivotable conductive bridging member and multiple conductive path printed circuit board

Country Status (8)

Country Link
US (1) US3731030A (de)
JP (1) JPS5411508B1 (de)
CA (1) CA948685A (de)
CH (1) CH514925A (de)
DE (2) DE7103467U (de)
ES (1) ES197996Y (de)
FR (1) FR2099115A5 (de)
GB (1) GB1349954A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931487A (en) * 1973-06-27 1976-01-06 Etablissements Russenberger Electric momentary action push-button switch
USRE29440E (en) * 1973-01-02 1977-10-11 Bowmar Instrument Corporation Calculator keyboard switch with disc spring contact and printed circuit board
US4071715A (en) * 1975-12-17 1978-01-31 Societe Des Telephones Picart Lebas Push-button switch for a multifrequency dialling telephone set
US4118611A (en) * 1977-08-30 1978-10-03 International Business Machines Corporation Buckling spring torsional snap actuator
US4122319A (en) * 1976-02-11 1978-10-24 Euratom Electrical switch and its use for the control of machines
USRE30923E (en) * 1973-01-02 1982-05-04 Bowmar Instrument Corporation Calculator keyboard switch with disc spring contact and printed circuit board
US4618754A (en) * 1985-06-17 1986-10-21 David Gross Membrane switch with pivotable rocker
US5117074A (en) * 1987-05-12 1992-05-26 Alps Electric Co., Ltd. Waterproof structure for a switch device
US20030036300A1 (en) * 2001-08-14 2003-02-20 Robert Kralik Contactor with strand-free, single-interrupting current routing
US20090223802A1 (en) * 2008-03-05 2009-09-10 Juan Zak Jumper with integrated switch
US20090239416A1 (en) * 2005-06-22 2009-09-24 Richard John Everitt Apparatus for Mechanical and Electrical Connection
US20100224471A1 (en) * 2006-08-29 2010-09-09 Idec Corporation Push button switch device
WO2011050391A1 (en) * 2009-10-28 2011-05-05 Commonwealth Scientific And Industrial Research Organisation Impact detection method and apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2462035C3 (de) * 1974-08-22 1981-10-08 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Tastatur
IT207494Z2 (it) * 1985-10-03 1988-01-25 Cavis Cavetti Isolati Spa Struttura di interruttore, particolarmente studiato per alzacristalli elettrici di autoveicoli.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415966A (en) * 1967-05-08 1968-12-10 Lucerne Products Inc Electrical switch with improved bridge contactor
US3531603A (en) * 1967-10-19 1970-09-29 Plessey Co Ltd Multi-position rotary electric switches
US3539749A (en) * 1968-12-18 1970-11-10 Western Electric Co Movable contacts with oppositely inclined keying slots for providing wiping action in a pushbutton switch
US3594523A (en) * 1969-05-08 1971-07-20 Skil Corp Electric switch with bridging contact

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4211541Y1 (de) * 1965-09-16 1967-06-28

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415966A (en) * 1967-05-08 1968-12-10 Lucerne Products Inc Electrical switch with improved bridge contactor
US3531603A (en) * 1967-10-19 1970-09-29 Plessey Co Ltd Multi-position rotary electric switches
US3539749A (en) * 1968-12-18 1970-11-10 Western Electric Co Movable contacts with oppositely inclined keying slots for providing wiping action in a pushbutton switch
US3594523A (en) * 1969-05-08 1971-07-20 Skil Corp Electric switch with bridging contact

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29440E (en) * 1973-01-02 1977-10-11 Bowmar Instrument Corporation Calculator keyboard switch with disc spring contact and printed circuit board
USRE30923E (en) * 1973-01-02 1982-05-04 Bowmar Instrument Corporation Calculator keyboard switch with disc spring contact and printed circuit board
US3931487A (en) * 1973-06-27 1976-01-06 Etablissements Russenberger Electric momentary action push-button switch
US4071715A (en) * 1975-12-17 1978-01-31 Societe Des Telephones Picart Lebas Push-button switch for a multifrequency dialling telephone set
US4122319A (en) * 1976-02-11 1978-10-24 Euratom Electrical switch and its use for the control of machines
US4118611A (en) * 1977-08-30 1978-10-03 International Business Machines Corporation Buckling spring torsional snap actuator
JPS5437281A (en) * 1977-08-30 1979-03-19 Ibm Accelerating device with key
JPS5741774B2 (de) * 1977-08-30 1982-09-04
US4618754A (en) * 1985-06-17 1986-10-21 David Gross Membrane switch with pivotable rocker
US5117074A (en) * 1987-05-12 1992-05-26 Alps Electric Co., Ltd. Waterproof structure for a switch device
US20030036300A1 (en) * 2001-08-14 2003-02-20 Robert Kralik Contactor with strand-free, single-interrupting current routing
US6894238B2 (en) * 2001-08-14 2005-05-17 Schaltbau Gmbh Contactor with strand-free, single-interrupting current routing
US20090239416A1 (en) * 2005-06-22 2009-09-24 Richard John Everitt Apparatus for Mechanical and Electrical Connection
US7717742B2 (en) * 2005-06-22 2010-05-18 Thomon Licensing Apparatus for mechanical and electrical connection
US20100224471A1 (en) * 2006-08-29 2010-09-09 Idec Corporation Push button switch device
US7994447B2 (en) * 2006-08-29 2011-08-09 Idec Corporation Push button switch device
US20090223802A1 (en) * 2008-03-05 2009-09-10 Juan Zak Jumper with integrated switch
US8872052B2 (en) * 2008-03-05 2014-10-28 Juan Zak Jumper with integrated switch
WO2011050391A1 (en) * 2009-10-28 2011-05-05 Commonwealth Scientific And Industrial Research Organisation Impact detection method and apparatus
AU2010312303B2 (en) * 2009-10-28 2016-11-10 A.G. Hahn And A.W. Hahn Impact detection method and apparatus

Also Published As

Publication number Publication date
CA948685A (en) 1974-06-04
CH514925A (de) 1971-10-31
DE2104404A1 (de) 1971-12-23
GB1349954A (en) 1974-04-10
DE7103467U (de) 1974-02-28
ES197996Y (es) 1975-10-01
FR2099115A5 (de) 1972-03-10
JPS5411508B1 (de) 1979-05-15
DE2104404C3 (de) 1974-01-10
ES197996U (es) 1975-05-01
DE2104404B2 (de) 1973-06-20

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