Piezoelectrically driven printing mechanism for dot matrix print

Details Piezoelectrically driven printing mechanism for dot matrix print Piezoelectrically driven printing mechanism for dot matrix print

1983-12-06

1985-10-15

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, 101 9348, 310328, 4001572, B41J 312

Patent

active

045470863

ABSTRACT:
A piezoelectrically driven print mechanism for a dot matrix printer includes a piezoelectric element to which is connected a movement amplification member and electrical drive means for causing expansion and contraction of the piezoelectric element along a first axis in response to the application of an electric potential. A printing pin is connected to the movement amplification member. The expansion or contraction of the piezoelectric element is converted into a much larger movement of the amplification member along a second axis perpendicular to the first axis. This amplified movement is transferred to the printing pin. Several embodiments of the movement amplification member are disclosed.

REFERENCES:
patent: 4435666 (1984-03-01), Fukui et al.
IBM Tech. Disc. Bulletin, by W. Sakmann, vol. 20, No. 6, Nov., 1977, p. 2263.

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