Driving apparatus
US7372190B2 · kind B2 · utility
4Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2007 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Mar 29, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/067
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving apparatus comprises: an electro-mechanical conversion element; a driving shaft that reciprocates in response to an extension and contraction of the electro-mechanical conversion element; a driven member, frictionally engaged with the driving shaft, that moves along the driving shaft by reciprocating the driving shaft; and at least one shaft support portion each including a groove portion that accommodates therein the driving shaft and a spring member that biases the driving shaft accommodated in the groove portion to a direction of the groove portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.