Piezoelectric driver of wire-dot impact printer
US5092689A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1989 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Apr 5, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A printing head includes a plurality of printing members constituting a dot matrix, and a plurality of actuators for driving the printing members, respectively. Each of the actuators comprises a resiliently movable member having one end to which the printing member is connected and the other end fixedly secured to a head base. An electro-distortion device can be used for exerting a displacement of the movable member, to enlarge the displacement at the one end and drive a printing member. The movable member is shaped substantially, between an actuating position and a fixing point, as one or more triangles, in a face of the flat material, in such a manner that the base and peak of the triangles are located substantially at the fixing and actuating positions, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.