EP0271674A3 - Key for a keyboard - Google Patents

Key for a keyboard Download PDF

Info

Publication number
EP0271674A3
EP0271674A3 EP87115578A EP87115578A EP0271674A3 EP 0271674 A3 EP0271674 A3 EP 0271674A3 EP 87115578 A EP87115578 A EP 87115578A EP 87115578 A EP87115578 A EP 87115578A EP 0271674 A3 EP0271674 A3 EP 0271674A3
Authority
EP
European Patent Office
Prior art keywords
plunger
bezel
flange
boot
jacket
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.)
Withdrawn
Application number
EP87115578A
Other languages
German (de)
French (fr)
Other versions
EP0271674A2 (en
Inventor
Moshe Elad
Michael A. Ragosta
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.)
Industrial Electronic Engineers Inc
Original Assignee
Industrial Electronic Engineers Inc
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 Industrial Electronic Engineers Inc filed Critical Industrial Electronic Engineers Inc
Publication of EP0271674A2 publication Critical patent/EP0271674A2/en
Publication of EP0271674A3 publication Critical patent/EP0271674A3/en
Withdrawn legal-status Critical Current

Links

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
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/052—Actuators interlocked
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/062—Damping vibrations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/07—Actuators transparent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/03—Key modules mounted on support plate or frame
    • H01H2233/04—Key modules mounted on support plate or frame captured between assembled parts of support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/05—Actuator part on body
    • H01H2233/058—One degree of freedom
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/07—Cap or button on actuator part
    • H01H2233/074—Snap coupling

Landscapes

  • Push-Button Switches (AREA)

Abstract

A plunger (26) is slidable in a jacket (14), preferably electrically insulating. A flange (16) is disposed on the jacket at one surface of the bezel (12). The flange receives a lip portion at one end of a boot (20) preferably made from a pliant material such as a silicone rubber. The boot and a thumbpiece (34) abut a flange on the plunger. A spring (30) may be constrained between the jacket and the flange on the plunger to bias the plunger and the boot to an unconstrained relationship of the boot. A retainer (36) such as a ring is disposed in a groove (38) in the plunger adjacent the opposite surface of the bezel from the jacket flange. The retainer cooperates with the bezel to press the jacket flange and the boot lip tightly against the bezel. This causes a seal to be produced to prevent water and humidity from passing through the bezel. An electrical contact (46) is attached to the plunger at the opposite end of the plunger from the thumbpiece. The electrical contact may be shock mounted to the plunger as by a rubber mount. The electrical contact cooperates with a contact (48) fixedly mounted in the bezel to define a switch. The plunger and the thumbpiece may be translucent. A lamp may be illuminated when the switch is closed, thereby illuminating the plunger and the thumbpiece. Under such circumstances, the contact on the plunger may bridge a pair of spaced contacts in the bezel to establish electrical continuity to the lamp. The lamp may also be illuminated independently of any operation of the key.
EP87115578A 1986-10-29 1987-10-23 Key for a keyboard Withdrawn EP0271674A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92430086A 1986-10-29 1986-10-29
US924300 1986-10-29

Publications (2)

Publication Number Publication Date
EP0271674A2 EP0271674A2 (en) 1988-06-22
EP0271674A3 true EP0271674A3 (en) 1988-10-12

Family

ID=25450043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115578A Withdrawn EP0271674A3 (en) 1986-10-29 1987-10-23 Key for a keyboard

Country Status (2)

Country Link
EP (1) EP0271674A3 (en)
JP (1) JPS63124315A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228827B (en) * 1989-01-19 1992-05-20 Ibc A mounting for a push button
CH679093A5 (en) * 1989-06-23 1991-12-13 Fela Planungs Ag
GB2242572A (en) * 1990-03-30 1991-10-02 Barcrest Ltd Switch assembly
JPH052947A (en) * 1991-06-25 1993-01-08 Matsushita Electric Works Ltd Waterproof switch
US5300742A (en) * 1992-09-23 1994-04-05 Huang Hai Long Waterproof structure for computer key switch
US6444930B1 (en) * 2001-03-07 2002-09-03 Carling Technologies Environmentally sealed rocker switch
DE102006051023A1 (en) * 2006-10-26 2008-04-30 Elobau Elektrobauelemente Gmbh & Co. Kg button
IT1391018B1 (en) * 2008-07-16 2011-10-27 Bticino Spa PUSH-BUTTON SWITCH WITH ANTI-JAM PROTECTION DEVICE
CN105355497B (en) * 2015-11-25 2017-09-26 东莞市铭冠电子科技有限公司 A kind of keyboard film
WO2018139077A1 (en) * 2017-01-24 2018-08-02 アルプス電気株式会社 Push switch
CN107045957B (en) * 2017-03-03 2020-08-14 漳州聚安美电气科技有限公司 Grease proofing structure of switch core, core subassembly and on-vehicle switch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1669636U (en) * 1953-09-18 1953-12-31 Kurt Maecker WATERPROOF SWITCH BOLT FOR OPERATING ELECTRIC CONTROL UNITS.
FR1497268A (en) * 1965-10-23 1967-10-06 Square D Co Push button control device
US3581036A (en) * 1969-10-13 1971-05-25 Cutler Hammer Inc Push-pull electric switch operator
US3790734A (en) * 1971-11-12 1974-02-05 Indak Mfg Corp Alternate action switch with sealing boot giving visual indication of switch position
US3881077A (en) * 1974-03-11 1975-04-29 Cutler Hammer Inc Refrigerator-freezer, two-door operated switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1669636U (en) * 1953-09-18 1953-12-31 Kurt Maecker WATERPROOF SWITCH BOLT FOR OPERATING ELECTRIC CONTROL UNITS.
FR1497268A (en) * 1965-10-23 1967-10-06 Square D Co Push button control device
US3581036A (en) * 1969-10-13 1971-05-25 Cutler Hammer Inc Push-pull electric switch operator
US3790734A (en) * 1971-11-12 1974-02-05 Indak Mfg Corp Alternate action switch with sealing boot giving visual indication of switch position
US3881077A (en) * 1974-03-11 1975-04-29 Cutler Hammer Inc Refrigerator-freezer, two-door operated switch

Also Published As

Publication number Publication date
EP0271674A2 (en) 1988-06-22
JPS63124315A (en) 1988-05-27

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Inventor name: ELAD, MOSHE

Inventor name: RAGOSTA, MICHAEL A.