Piezoelectric printer and piezoelectric multilam actuator used therein
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 1982
Grant Date -
N/A
app pub date -
Sep 8, 1981
filing date -
Sep 8, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A piezoelectric printer including: a frame; a plurality of printer units mounted on the frame; each unit including a piezoelectric multilam including at least two piezoelectric members and having a mounting portion and an actuating portion; the actuating portion moveable in an actuating direction and a cocking direction, the multilam being tapered in its lateral dimension and being larger at the mounting portion and smaller at the actuating portion; a weight carried by the multilam for increasing the energy transfer of the multilam; and a printing element driven by the actuating portion; means for applying a cocking voltage and an actuating voltage to the members, which voltages are less than the rupture voltage in the poling direction and less than the depoling voltage in the depoling direction, for cocking and actuating the multilam to drive the printing element to the printing position and guide means attached to the frame for guiding the printing elements; the printer units are arranged in sets of stacked arrays, which may be overlapped and may include holes in each of the inferior printer units for receiving printer elements from superior printing units.
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