Piezoelectric driver of wire-dot impact printer

Details Piezoelectric driver of wire-dot impact printer Piezoelectric driver of wire-dot impact printer

1989-04-05

1992-03-03

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

4001571, B41J 2295

Patent

active

050926896

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.

REFERENCES:
patent: 4695174 (1987-09-01), Gugel et al.

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