Vibration generating apparatus
US9515248B2 · kind B2 · utility
2Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Jan 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/88
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is provided a vibration generating apparatus including: an elastic member having both end portions thereof fixedly installed on a support part of a lower case; a piezoelectric element installed on one surface of the elastic member; and a mass body part connected to the elastic member to increase an amount of vibrations, wherein the mass body part is provided with protrusion portions for first contacting the lower case at the time of an external impact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.