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BLADDER, AN APPARATUS AND A METHOD FOR SHAPING AND CURING A TIRE

  • US 20100089520A1
  • Filed: 10/13/2008
  • Published: 04/15/2010
  • Est. Priority Date: 10/13/2008
  • Status: Abandoned Application
First Claim
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1. A bladder for shaping and curing a green tire comprising an endless ribbon of elastomeric membrane, the ribbon comprising a main circumferential portion which comes into contact with the cavity of the tire upon full inflation of the bladder and two circumferential edges which are adapted to be fastened to two axially opposite flanges of a tire mold, respectively;

  • wherein the membrane of the main circumferential portion of the ribbon is structurally weakened in two circumferential strip-like regions, the rigidity of the membrane at the remaining regions of the main circumferential portion being higher than at the two structurally weakened circumferential strip-like regions, in such a way that the two structurally weakened circumferential strip-like regions are able, upon inflation of the bladder, to stretch substantially more than the remaining regions.

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