GB1505034A - Piezoelectric switches - Google Patents
Piezoelectric switchesInfo
- Publication number
- GB1505034A GB1505034A GB16948/76A GB1694876A GB1505034A GB 1505034 A GB1505034 A GB 1505034A GB 16948/76 A GB16948/76 A GB 16948/76A GB 1694876 A GB1694876 A GB 1694876A GB 1505034 A GB1505034 A GB 1505034A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- vibrations
- generator
- piezo
- april
- 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
Links
- 229920001169 thermoplastic Polymers 0.000 abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000001012 protector Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/964—Piezoelectric touch switches
Landscapes
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
1505034 Piezo-electric generators KUREHA KAGAKU KOGYO KK 27 April 1976 [28 April 1975] 16948/76 Heading H2A A piezo-electric generator comprises a piezoelectric thermoplastic film 2 with electrodes 3, 3<SP>1</SP> on its opposed surfaces, and a generator 4 of mechanical vibrations which vibrations are transmitted to the thermoplastic film to cause it to generate an oscillating voltage across the electrodes. The vibration generator 4 and the film may be mutually movable so as to come into direct contact, with or without the interposition of a protector 5 to prevent damage to electrode 3<SP>1</SP>. In a modification, Fig. 2 (not shown) the film and the vibration generator are both fixed and an intermediate member (8) is movable into and out of the space between them, the intermediate member transmitting the vibrations to the film.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50050778A JPS51127382A (en) | 1975-04-28 | 1975-04-28 | Piezooelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1505034A true GB1505034A (en) | 1978-03-22 |
Family
ID=12868277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16948/76A Expired GB1505034A (en) | 1975-04-28 | 1976-04-27 | Piezoelectric switches |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS51127382A (en) |
| DE (1) | DE2618720C3 (en) |
| FR (1) | FR2310038A1 (en) |
| GB (1) | GB1505034A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1543089A (en) * | 1976-12-02 | 1979-03-28 | Marconi Co Ltd | Pressure sensitive generator |
| JPS5831427Y2 (en) * | 1976-12-28 | 1983-07-12 | 呉羽化学工業株式会社 | Polymer piezoelectric transducer |
| JPS58200394A (en) * | 1982-05-14 | 1983-11-21 | 日本電信電話株式会社 | Fire alarm |
| DE3920957A1 (en) * | 1989-06-27 | 1991-01-10 | Bodenseewerk Geraetetech | Piezoelectric foil as appts. coating - surrounds appts. completely and responds to touching contact |
| US5770914A (en) * | 1995-03-10 | 1998-06-23 | International Game Technology | Illuminated piezoelectric switch |
| US5982612A (en) * | 1996-02-15 | 1999-11-09 | Mallinckrodt & Mallinckrodt | Apparatus for automatically deploying a computer keyboard into an operative position from a storage position |
| DE102007017305A1 (en) | 2007-04-11 | 2008-10-16 | Genesis Adaptive Systeme Deutschland Gmbh | Arrangement and method for a stepless switch button for a device of all types and designs |
-
1975
- 1975-04-28 JP JP50050778A patent/JPS51127382A/en active Granted
-
1976
- 1976-04-27 GB GB16948/76A patent/GB1505034A/en not_active Expired
- 1976-04-28 FR FR7612600A patent/FR2310038A1/en active Granted
- 1976-04-28 DE DE2618720A patent/DE2618720C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2618720B2 (en) | 1977-08-25 |
| FR2310038A1 (en) | 1976-11-26 |
| DE2618720A1 (en) | 1976-11-04 |
| FR2310038B1 (en) | 1981-10-30 |
| DE2618720C3 (en) | 1978-04-27 |
| JPS5510090B2 (en) | 1980-03-13 |
| JPS51127382A (en) | 1976-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |