WIRE DRIVING MECHANISM.

摘要

A wire driving mechanism which is used for a wire dot printing head and uses a piezoelectric device or a magnetostrictive device as a driving source. To obtain a satisfactory printing quality with a simple mechanism, this mechanism has two arms (3a, 3b) disposed in parallel with each other, with one of the ends of each arm being fixed, and rotated by elastic force of an elastic driving source (5). This rotation provides a displacement quantity obtained by magnifying the deformation quantity of the driving source to the free end of each arm. This displacement quantity is applied in a staggered arrangement to both sides of a driving member (8) through a pair of support plates (6a, 6b) so as to rotate the driving member and to deliver the wire (7) in a printing direction.