EP0157037A3 - Long-stroke push-button switch - Google Patents
Long-stroke push-button switch Download PDFInfo
- Publication number
- EP0157037A3 EP0157037A3 EP84306247A EP84306247A EP0157037A3 EP 0157037 A3 EP0157037 A3 EP 0157037A3 EP 84306247 A EP84306247 A EP 84306247A EP 84306247 A EP84306247 A EP 84306247A EP 0157037 A3 EP0157037 A3 EP 0157037A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- keytop
- travel
- lever
- spring
- switch
- 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- Withdrawn
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
- H01H13/705—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 characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/002—Longer travel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/024—Transmission element
- H01H2221/026—Guiding or lubricating nylon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2233/00—Key modules
- H01H2233/05—Actuator part on body
- H01H2233/054—Snap coupling
- H01H2233/056—Snap coupling with limited freedom
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2237/00—Mechanism between key and laykey
- H01H2237/004—Cantilever
Landscapes
- Push-Button Switches (AREA)
Abstract
A long-stroke push-button switch has contacts which
close in the middle of the travel and remain closed through
the last half of the travel. The switch has a keytop (12) and
a lever (42) interconnected by a stiff spring (38). One end of
the lever is pivotably mounted (at 92) in the switch housing.
A downwardly projecting actuator (84) located on the under
side of the lever rests upon the top of a normally-open
snap-dome switch (78, 80). The axis of the snap-dome switch
is located off-centre with respect to the centre line of the
keytop. When the keytop (12) is depressed, the spring (38)
is compressed during the first halt of the keytop travel. When
the spring is partially compressed, further pressure on the
keytop causes the lever (42) to pivot and close the snap-
dome switch contacts (78, 80) in the middle of the travel.
Continued pressure on the keytop (12) further compresses
the spring and allows the keytop to move through the last
half of the travel after the contacts have closed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59449284A | 1984-03-29 | 1984-03-29 | |
US594492 | 1984-03-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0157037A2 EP0157037A2 (en) | 1985-10-09 |
EP0157037A3 true EP0157037A3 (en) | 1986-11-05 |
Family
ID=24379099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84306247A Withdrawn EP0157037A3 (en) | 1984-03-29 | 1984-09-12 | Long-stroke push-button switch |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0157037A3 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4209437A1 (en) * | 1992-03-24 | 1993-09-30 | Schurter Gmbh | Stroke extension element for membrane keyboards |
DE19726529C2 (en) * | 1997-06-23 | 2001-07-05 | Eaton Controls Gmbh | Electrical push button |
DE19853753A1 (en) * | 1998-11-21 | 2000-05-25 | Preh Elektro Feinmechanik | Control keyboard, in particular for a motor vehicle air conditioning system |
DE10256171B4 (en) * | 2002-12-02 | 2012-04-26 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance and switch for use in a household appliance |
MY156814A (en) | 2007-03-15 | 2016-03-31 | Novartis Ag | Organic compounds and their uses |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3648394A (en) * | 1970-01-12 | 1972-03-14 | Burroughs Corp | Keytop structure |
US3749859A (en) * | 1972-04-19 | 1973-07-31 | Colorado Instr Inc | Keyboard switch assembly with improved hermetically sealed diaphragm contact structure |
US3916150A (en) * | 1974-03-04 | 1975-10-28 | Stackpole Component Co | Data machine keyboard assembly with elongated key cap for actuating an electric switch |
EP0118131A2 (en) * | 1983-03-07 | 1984-09-12 | Oak Industries Inc. | Tactile feel switch with positive switch actuation |
-
1984
- 1984-09-12 EP EP84306247A patent/EP0157037A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3648394A (en) * | 1970-01-12 | 1972-03-14 | Burroughs Corp | Keytop structure |
US3749859A (en) * | 1972-04-19 | 1973-07-31 | Colorado Instr Inc | Keyboard switch assembly with improved hermetically sealed diaphragm contact structure |
US3916150A (en) * | 1974-03-04 | 1975-10-28 | Stackpole Component Co | Data machine keyboard assembly with elongated key cap for actuating an electric switch |
EP0118131A2 (en) * | 1983-03-07 | 1984-09-12 | Oak Industries Inc. | Tactile feel switch with positive switch actuation |
Also Published As
Publication number | Publication date |
---|---|
EP0157037A2 (en) | 1985-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19861001 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GILBERT, JAMES C. |