Method of making a tire using a high crown uni-stage tire building drum
AssigneeThe Goodyear Tire & Rubber Company
InventorsJohn Roedseth, Francis Cornet, Jean-Marie Colling
Life of this patent
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Abstract
A tire building drum and a method of building a tire carcass is disclosed. The tire building drum has a center section comprised of a plurality of segments that are radially and axially movable. The building drum further comprises shoulder sections that are axially movable. The shoulder sections include radially expandable bead locks. The method employs the steps of applying one or more carcass layers, locking the bead locks and moving the center section radially outwardly while moving the bead locks axially inwardly.
Claims12
A method of building a tire carcass on a tire building drum comprising the steps of:
- Applying one or more tire building components onto a drum to form a cylindrically shaped unvulcanized tire carcass having carcass ends;
- placing a first and second bead around the tire building components on the drum so that the carcass ends of the tire carcass extend laterally between the beads;
- radially expanding a first and second bead lock mechanism into engagement with a first and second bead;
- moving the carcass located between the bead locks radially outward by radially expanding a center portion of the tire building drum while moving the pair of bead lock mechanisms axially inward.
A method of building a tire carcass on a tire building drum comprising the steps of:
- applying one or more tire building components onto a drum to form a cylindrically shaped unvulcanized tire carcass having carcass ends;
- placing a first and second bead around the tire building components on the drum so that the carcass ends of the tire carcass extend laterally between the beads;
- radially expanding a first and second bead lock mechanism into engagement with a first and second bead;
- expanding the carcass located between the bead locks radially outward by radially expanding a center portion of the tire building drum while maintaining the axial tension of the carcass located between the bead locks.
Dependencies are inferred from the claim text.