IT988533B - Azionatore perfezionato per tastie ra a commutatore a diaframma ela stico - Google Patents

Azionatore perfezionato per tastie ra a commutatore a diaframma ela stico

Info

Publication number
IT988533B
IT988533B IT24942/71A IT2494271A IT988533B IT 988533 B IT988533 B IT 988533B IT 24942/71 A IT24942/71 A IT 24942/71A IT 2494271 A IT2494271 A IT 2494271A IT 988533 B IT988533 B IT 988533B
Authority
IT
Italy
Prior art keywords
keypads
perfected
actuator
diaphragm switch
stic
Prior art date
Application number
IT24942/71A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT988533B publication Critical patent/IT988533B/it

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
IT24942/71A 1970-06-30 1971-05-25 Azionatore perfezionato per tastie ra a commutatore a diaframma ela stico IT988533B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT988533B true IT988533B (it) 1975-04-30

Family

ID=21970358

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24942/71A IT988533B (it) 1970-06-30 1971-05-25 Azionatore perfezionato per tastie ra a commutatore a diaframma ela stico

Country Status (15)

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

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 (de) * 1974-09-09 1979-08-23 Sharp K.K., Osaka (Japan) Elektronischer Rechner
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 (it) * 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 (it) * 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
BR7102016D0 (pt) 1973-04-12
FR2095555A6 (it) 1972-02-11
JPS471203A (it) 1972-01-21
NO133859C (it) 1976-07-07
DE2130233B2 (de) 1973-04-12
ES392708A2 (es) 1977-12-01
US3693775A (en) 1972-09-26
FI59219B (fi) 1981-03-31
GB1304312A (it) 1973-01-24
FI59219C (fi) 1981-07-10
JPS5250633B1 (it) 1977-12-26
NO133859B (it) 1976-03-29
NL164995B (nl) 1980-09-15
DE2130233C3 (de) 1973-11-08
SE369449B (it) 1974-08-26
NL7107869A (it) 1972-01-03
NL164995C (nl) 1981-02-16
DK134060B (da) 1976-09-06
DE2130233A1 (de) 1972-01-05
BE766631R (fr) 1971-10-01
CA938969A (en) 1973-12-25
DK134060C (it) 1977-02-14

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