Rotary encoder contact disk
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United States of America Patent
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Apr 17, 1984
Grant Date -
N/A
app pub date -
Nov 3, 1981
filing date -
Sep 14, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A structure and a method for manufacturing a contact disk for detection of angular position and direction includes a concentrically-arranged planar slip-ring like conductive layer at the innermost region of the disk, a first gear-pattern like conductive layer, having outer teeth, at its midway region, and a second gear-pattern conductive layer, having internal teeth at the outermost region of the disk, all formed on an insulative substrate; the gear-pattern conductive layers are both printed at the same time to insure high accuracy in the position of the conductive layers; crossing parts of the lead connections are printed with the use of an insulative film therebetween.
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