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VARIABLE-CENTRELINE TYRE BUILDING DRUM

  • US 20090178766A1
  • Filed: 02/16/2007
  • Published: 07/16/2009
  • Est. Priority Date: 02/17/2006
  • Status: Abandoned Application
First Claim
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1. ) A tyre building drum comprising a spindle having an axis and a first and second flange coaxial with said axis and movable axially with respect to each other to support and shape a tyre carcass;

  • and a drive unit for rotating the first and second flange about said axis, and for varying a distance between the first and second flange; and

    comprising an axially fixed drive shaft coaxial with said axis and defining an output shaft of the drive unit;

    the drive shaft comprising an end portion projecting outwards of the drive unit;

    the first flange being fixed to the end portion of the drive shaft to rotate with the drive shaft about said axis; and

    the second flange being fitted in axially sliding, angularly fixed manner to the end portion of the drive shaft.

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