Piezoelectric printing head

Details Piezoelectric printing head Piezoelectric printing head

1995-01-17

1995-09-05

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

40012401, 40012423, B41J 2295

Patent

active

054473810

ABSTRACT:
A piezoelectric printing head includes an annular base frame and a plurality of piezoelectric actuator assemblies mounted on the base frame. Each actuator assembly includes a piezoelectric element having one end rigidly secured to the base frame and another free end, an armature having a base end and a tip end to which a printing wire is rigidly connected, and a magnifying mechanism. When the piezoelectric element is electrically energized, a displacement of the piezoelectric element is magnified and then transmitted to the printing wire. Between the base frame and the base end of the armature there is provided a vibration damping buffer member.

REFERENCES:
patent: 3927410 (1975-12-01), Pimbley
patent: 4193703 (1980-03-01), Sakmann
patent: 4874978 (1989-10-01), Sakaida et al.
patent: 5005994 (1991-04-01), Yano
patent: 5133612 (1992-07-01), Yamazaki et al.
patent: 5167458 (1992-12-01), Andou
patent: 5180147 (1993-01-01), Andersson et al.
patent: 5214341 (1993-05-01), Itoh et al.
Patent Abstracts of Japan vol. 8, No. 191 (M-322) (1628) 4 Sep. 1984 & JP-A-59 081 181 (Nippon Denki K.K.) 10 May 1984 *abstract*.

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