MD818C2 - Keyboard and manufacturing process thereof - Google Patents
Keyboard and manufacturing process thereofInfo
- Publication number
- MD818C2 MD818C2 MD94-0376A MD940376A MD818C2 MD 818 C2 MD818 C2 MD 818C2 MD 940376 A MD940376 A MD 940376A MD 818 C2 MD818 C2 MD 818C2
- Authority
- MD
- Moldova
- Prior art keywords
- base
- conducting areas
- keyboard
- metalization
- bulges
- Prior art date
Links
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention relates to the field of authomatics and computer engenering. It can be used for manual data input into the control and computer systems.The keyboard comprises a flexible base 1 made out in the form of a printed circuit with contacting arrays 2, the perforated insulating pad 4 with punched holes 5 arranged opposite the contacting arrays and the demphing membrane 6 with bulges 7 provided with conducting areas 9. The bulges are made in the form of a truncated pyramid 8 onto the upper basis of which inside are applied the conducting areas 9. The thickness of the insulated par 4 is not less than one-third of the bulge height.The keyboard is manufactured by means of vacuum metalization of the base, electrode formation and following keyboard arrangement, the metalization being carried out onto the continuously moving base, the masks of the printed circuit, conducting areas and contact arrays being introduced into the metalization zone periodically. On the plots of the base with the conducting areas have been applied the bulges in the form of truncated pyramids, the conducting areas being applied onto the upper basis of a pyramide inside thereof. Then the base is cut into separate sheets.The tehnical result consist in the provision of shorting the electrical contacts along the surface. Vacuum metalization used for the manufacturing of the keyboard provides an ecological pure tehnology.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU5062780 | 1992-09-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD818B1 MD818B1 (en) | 1997-08-31 |
| MD818C2 true MD818C2 (en) | 1998-05-31 |
Family
ID=21613576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD94-0376A MD818C2 (en) | 1992-09-23 | 1994-11-15 | Keyboard and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD818C2 (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU563672A1 (en) * | 1975-07-30 | 1977-06-30 | Ленинградский Ордена Ленина Электротехнический Институт Им. В.И.Ульянова (Ленина) | Information input equipment |
| SU635484A1 (en) * | 1976-12-06 | 1978-11-30 | Львовский Ордена Ленина Политехнический Институт | Key manufacturing method |
| SU641431A1 (en) * | 1977-06-17 | 1979-01-05 | Львовский Ордена Ленина Политехнический Институт | Method of manufacturing keys with three-dimensional reinforced symbols |
| SU700477A1 (en) * | 1977-08-02 | 1979-11-30 | Ивановский Химико-Технологический Институт | Stroncium enamel |
| SU1095162A1 (en) * | 1983-01-26 | 1984-05-30 | Центральный Научно-Исследовательский И Проектно-Технологический Институт Организации И Техники Управления | Keyboard-type information input device |
| JPS6322329B2 (en) * | 1982-11-30 | 1988-05-11 | Sharp Kk | |
| JPS63208115A (en) * | 1987-02-25 | 1988-08-29 | Seiko Epson Corp | Input device |
| SU1425643A1 (en) * | 1987-05-18 | 1988-09-23 | Предприятие П/Я А-7070 | Keyboard |
| SU1487021A1 (en) * | 1987-09-01 | 1989-06-15 | Andrej A Zadorozhnyj | Keyboard |
| FR2625339A1 (en) * | 1987-12-24 | 1989-06-30 | Pendar Sarl | Computer keyboard |
| JPH0146887B2 (en) * | 1984-06-04 | 1989-10-11 | Matsushita Electric Ind Co Ltd |
-
1994
- 1994-11-15 MD MD94-0376A patent/MD818C2/en active IP Right Grant
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU563672A1 (en) * | 1975-07-30 | 1977-06-30 | Ленинградский Ордена Ленина Электротехнический Институт Им. В.И.Ульянова (Ленина) | Information input equipment |
| SU635484A1 (en) * | 1976-12-06 | 1978-11-30 | Львовский Ордена Ленина Политехнический Институт | Key manufacturing method |
| SU641431A1 (en) * | 1977-06-17 | 1979-01-05 | Львовский Ордена Ленина Политехнический Институт | Method of manufacturing keys with three-dimensional reinforced symbols |
| SU700477A1 (en) * | 1977-08-02 | 1979-11-30 | Ивановский Химико-Технологический Институт | Stroncium enamel |
| JPS6322329B2 (en) * | 1982-11-30 | 1988-05-11 | Sharp Kk | |
| SU1095162A1 (en) * | 1983-01-26 | 1984-05-30 | Центральный Научно-Исследовательский И Проектно-Технологический Институт Организации И Техники Управления | Keyboard-type information input device |
| JPH0146887B2 (en) * | 1984-06-04 | 1989-10-11 | Matsushita Electric Ind Co Ltd | |
| JPS63208115A (en) * | 1987-02-25 | 1988-08-29 | Seiko Epson Corp | Input device |
| SU1425643A1 (en) * | 1987-05-18 | 1988-09-23 | Предприятие П/Я А-7070 | Keyboard |
| SU1487021A1 (en) * | 1987-09-01 | 1989-06-15 | Andrej A Zadorozhnyj | Keyboard |
| FR2625339A1 (en) * | 1987-12-24 | 1989-06-30 | Pendar Sarl | Computer keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| MD818B1 (en) | 1997-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20120923 |