CA2242959A1 - Key switch for a keyboard - Google Patents
Key switch for a keyboard Download PDFInfo
- Publication number
- CA2242959A1 CA2242959A1 CA002242959A CA2242959A CA2242959A1 CA 2242959 A1 CA2242959 A1 CA 2242959A1 CA 002242959 A CA002242959 A CA 002242959A CA 2242959 A CA2242959 A CA 2242959A CA 2242959 A1 CA2242959 A1 CA 2242959A1
- Authority
- CA
- Canada
- Prior art keywords
- cap
- key
- spring holder
- spring
- key cap
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
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
- H01H2215/03—Sound
-
- 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
- H01H2235/00—Springs
- H01H2235/002—Linear coil spring combined with dome spring
Landscapes
- Push-Button Switches (AREA)
Abstract
A key switch includes a rubber cone supported on a membrane circuit board inside a keyboard, a key base covered on the rubber cone to hold a vertically slidably key cap, a spring holder cap vertically slidably coupled to the key cap inside the key base to hold spring between the key cap and the spring holder cap, the key cap has two inner hooks respectively extended from two opposite sides of a bottom coupling frame thereof for engagement with the spring holder cap, the spring holder cap having outward hooks raised from the topmost edge thereof at two opposite sides for engagement with the inner hooks of the key cap, the rubber cone being compressed by the spring holder cap to trigger a contact at the membrane circuit board and the spring suddenly extending out to produce a click sound when the key cap is depressed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002242959A CA2242959C (en) | 1998-08-25 | 1998-08-25 | Key switch for a keyboard |
| GB9818867A GB2341005B (en) | 1998-08-25 | 1998-08-28 | Key switch for a keyboard |
| FR9811030A FR2783086B3 (en) | 1998-08-25 | 1998-09-03 | KEY SWITCH FOR KEYBOARD |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002242959A CA2242959C (en) | 1998-08-25 | 1998-08-25 | Key switch for a keyboard |
| GB9818867A GB2341005B (en) | 1998-08-25 | 1998-08-28 | Key switch for a keyboard |
| FR9811030A FR2783086B3 (en) | 1998-08-25 | 1998-09-03 | KEY SWITCH FOR KEYBOARD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2242959A1 true CA2242959A1 (en) | 2000-02-25 |
| CA2242959C CA2242959C (en) | 2002-07-09 |
Family
ID=33032756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002242959A Expired - Fee Related CA2242959C (en) | 1998-08-25 | 1998-08-25 | Key switch for a keyboard |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA2242959C (en) |
| FR (1) | FR2783086B3 (en) |
| GB (1) | GB2341005B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2463341B (en) * | 2009-06-04 | 2011-09-14 | Cheng Uei Prec Ind Co Ltd | Key switch |
| CN108305804B (en) * | 2017-01-13 | 2019-08-16 | 光宝电子(广州)有限公司 | Mechanical switch structure |
| CN111180240B (en) * | 2018-11-09 | 2022-01-21 | 光宝电子(广州)有限公司 | Key structure and keyboard |
| CN114496628B (en) * | 2022-01-14 | 2024-11-12 | 深圳市神舟创新科技有限公司 | A self-protective intelligent keyboard that avoids long-term key pressing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1155954B (en) * | 1982-09-28 | 1987-01-28 | Olivetti & Co Spa | CONTACT KEYBOARD |
| US5442152A (en) * | 1994-09-28 | 1995-08-15 | Focus Electronic Co., Ltd. | Computer key switch |
-
1998
- 1998-08-25 CA CA002242959A patent/CA2242959C/en not_active Expired - Fee Related
- 1998-08-28 GB GB9818867A patent/GB2341005B/en not_active Expired - Fee Related
- 1998-09-03 FR FR9811030A patent/FR2783086B3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2341005A (en) | 2000-03-01 |
| FR2783086B3 (en) | 2000-08-11 |
| FR2783086A3 (en) | 2000-03-10 |
| GB9818867D0 (en) | 1998-10-21 |
| GB2341005B (en) | 2002-12-11 |
| CA2242959C (en) | 2002-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130827 |