Drawing device for e.g. biological field, has mechanical pencil sliding in body, actuator sliding in groove for actuating course of pencil on paper sheet, and motor driving cam casing plate provided on top of pencil

摘要

The device has a mechanical pencil (5) sliding in a body (1), and an actuator sliding in a groove for actuating a course of the pencil on a paper sheet. A motor (7) drives a cam casing plate (8) provided on the top of the pencil, which is integrated to a magnetic core that is operated by magnetic field produced by a coil. A return spring (6) ensures that the pencil returns to a preset position.