CA938969A - Actuator for elastic diaphragm switch keyboard - Google Patents

Actuator for elastic diaphragm switch keyboard

Info

Publication number
CA938969A
CA938969A CA113587A CA113587A CA938969A CA 938969 A CA938969 A CA 938969A CA 113587 A CA113587 A CA 113587A CA 113587 A CA113587 A CA 113587A CA 938969 A CA938969 A CA 938969A
Authority
CA
Canada
Prior art keywords
actuator
elastic diaphragm
diaphragm switch
switch keyboard
keyboard
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
CA113587A
Other versions
CA113587S (en
Inventor
L. Johnson Lawrence
A. Mathewson James
A. Brooks Kenneth
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA938969A publication Critical patent/CA938969A/en
Expired 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
    • H01H13/70—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
    • H01H13/702—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 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/006—Force isolators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/016—Pressure reduction membrane; Spreader layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/05—Force concentrator; Actuating dimple
CA113587A 1970-06-30 1971-05-21 Actuator for elastic diaphragm switch keyboard Expired CA938969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5128470A 1970-06-30 1970-06-30

Publications (1)

Publication Number Publication Date
CA938969A true CA938969A (en) 1973-12-25

Family

ID=21970358

Family Applications (1)

Application Number Title Priority Date Filing Date
CA113587A Expired CA938969A (en) 1970-06-30 1971-05-21 Actuator for elastic diaphragm switch keyboard

Country Status (15)

Country Link
US (1) US3693775A (en)
JP (1) JPS5250633B1 (en)
BE (1) BE766631R (en)
BR (1) BR7102016D0 (en)
CA (1) CA938969A (en)
DE (1) DE2130233C3 (en)
DK (1) DK134060B (en)
ES (1) ES392708A2 (en)
FI (1) FI59219C (en)
FR (1) FR2095555A6 (en)
GB (1) GB1304312A (en)
IT (1) IT988533B (en)
NL (1) NL164995C (en)
NO (1) NO133859C (en)
SE (1) SE369449B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908100A (en) * 1974-03-25 1975-09-23 Gen Signal Corp Touch blend smooth surface switch assembly
DE2540011C3 (en) * 1974-09-09 1979-08-23 Sharp K.K., Osaka (Japan) Electronic calculator
US3955498A (en) * 1975-03-27 1976-05-11 Scott Thaddeus Leroy Electromagnetically actuated printer
US4057710A (en) * 1976-03-29 1977-11-08 Willmott Arthur S Keyboard assembly
US4086451A (en) * 1976-12-06 1978-04-25 Texas Instruments Incorporated Keyboard apparatus
JPS5633937Y2 (en) * 1978-04-10 1981-08-11
US4258096A (en) * 1978-11-09 1981-03-24 Sheldahl, Inc. Composite top membrane for flat panel switch arrays
US4520248A (en) * 1980-08-15 1985-05-28 Rogers Corporation Keyboard assembly
US4671688A (en) * 1985-10-02 1987-06-09 Honeywell Inc. Shielded keyboard
US4972753A (en) * 1987-12-21 1990-11-27 Yamaha Corporation Electronic musical instrument
US5286125A (en) * 1992-11-16 1994-02-15 Digiosia Antonio G Keyboard and key guide frame arrangement
AU6018494A (en) * 1993-05-21 1994-12-20 Arthur D. Little Enterprises, Inc. User-configurable control device
US5684279A (en) * 1995-09-12 1997-11-04 Key Tronic Corporation Computer keyboard with improved membrane keyswitch structure having deflection concentration feature
US6791480B1 (en) 1998-12-04 2004-09-14 Alan K. Uke Method of preventing and/or alleviating repetitive use injury to electronic computer keyboard operator
GB2346739B (en) 1999-02-12 2002-12-18 Nokia Mobile Phones Ltd Keypad structure
WO2011138200A1 (en) * 2010-05-06 2011-11-10 Iee International Electronics & Engineering S.A. Input device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165129B (en) * 1960-07-01
US3308253A (en) * 1965-03-25 1967-03-07 Ibm Diaphragm switch having a diaphragm supported on an incompressible layer and an elastomer overlaying the diaphragm
US3382338A (en) * 1966-04-26 1968-05-07 Ibm Pushbutton actuator for elastomeric switch
US3551616A (en) * 1969-01-15 1970-12-29 Ibm Multiple switch encoding device
US3560675A (en) * 1969-05-26 1971-02-02 Ibm Depressible diaphragm overlay switch for displays
US3584162A (en) * 1970-02-16 1971-06-08 Ibm Electrical keyboard switch mechanism with improved resilient diaphragm contact actuator

Also Published As

Publication number Publication date
NO133859B (en) 1976-03-29
FR2095555A6 (en) 1972-02-11
DE2130233B2 (en) 1973-04-12
US3693775A (en) 1972-09-26
GB1304312A (en) 1973-01-24
NL164995B (en) 1980-09-15
NL7107869A (en) 1972-01-03
JPS5250633B1 (en) 1977-12-26
NL164995C (en) 1981-02-16
FI59219B (en) 1981-03-31
BE766631R (en) 1971-10-01
DE2130233A1 (en) 1972-01-05
SE369449B (en) 1974-08-26
DE2130233C3 (en) 1973-11-08
FI59219C (en) 1981-07-10
JPS471203A (en) 1972-01-21
NO133859C (en) 1976-07-07
BR7102016D0 (en) 1973-04-12
DK134060B (en) 1976-09-06
IT988533B (en) 1975-04-30
DK134060C (en) 1977-02-14
ES392708A2 (en) 1977-12-01

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