Write head for a drawing machine having a deformable mounting for a writing member

Abstract

A write head for an X-Y plotter comprises a write head body (10) movably mounted in a horizontal direction relative to a write medium (14) and a pen (30) movably mounted in a vertical direction with respect to the head body (10) between pen-up and pen-down positions. The mounting for the pen (30) allows movement with respect to the head body and (10) comprises a parallelogram-shaped deformable element (20) made out of molded plastic material. This deformable element has a first side portion (21) attached to the head body, a second side portion (22) supporting the pen and two parallel arms (23, 24) pivotally linking the first and second side portions through horizontal hinge portions of reduced thickness (23a, 23b, 24a, 24b). An actuator (40) has a permanent magnet (44) fixed to the head body and a coil (42) fixed to the second side portion and moves the pen between pen-up and pen-down positions.

Dependencies are inferred from the claim text.