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Green tire-to-mold contact time detection, analysis, and control

  • US 4,502,857 A
  • Filed: 04/04/1983
  • Issued: 03/05/1985
  • Est. Priority Date: 04/04/1983
  • Status: Expired due to Term
First Claim
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1. Apparatus for monitoring the rate of growth of a tire prior to curing, comprising:

  • first and second mold halves for receiving the tire therebetween, said mold halves having mold sidewall surfaces, and mold rib and mold tread surfaces for imparting a tread design to the tire;

    first means for closing said mold halves while expanding the tire under pressure;

    sensing means in operative communication with certain of said mold surfaces for sensing the approach or contact of the tire at certain points about said mold surfaces; and

    control means interconnected between said sensing means and said first means for regulating the rate of closure of said mold halves as a function of the times of contact of the tire at said certain points.

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