Apparatus for drawing a conductor print pattern for demister heater wires.

摘要

An automated drawing apparatus is disclosed, in which a dot string along a model line (Lr) of demister heater wires (2) on a two-dimensional developed view of a glass window of a motor vehicle is digitized to generate functions of two-dimensional free curves corresponding to the heater wires (2). A width of each conductor of the heater wires (2) is calculated on the basis of input data consisting of a heater resistance, a conductor length, sizes of heating areas (A,B,C), and calorific values of the respective areas, and a basic line of the heater wire (2) is offset by the conductor width to generate conductor contours. Print patterns of heater wires are drawn automatically and this eliminates precise manual drafting.