Tyre Building Drum
OwnerViscardo Baldoni, Giorgio Marangoniinventors
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Abstract
A tyre building drum, wherein two coaxial half-drums move in opposite directions along a common axis, and each half-drum has an expandible bead clamping device defined by a ring of sectors, each having a radial rod; the sectors are movable to and from an expanded position, clamping a respective bead bundle, by an actuating device having a powered body movable back and forth along the axis and supporting a number of individual guide members, each of which is connected positively to the radial rod of a respective sector to move the relative sector to and from the expanded position in response to axial displacements of the powered body.
Claims11
1) A tyre building drum, wherein two coaxial half-drums (5) move in opposite directions along a common axis (3), and each half-drum (5) comprises an expandible bead clamping device (18) in turn comprising a ring of sectors (25), each with a radial rod (22), and an actuating device (21) for moving the sectors (25) and the relative radial rods (22) substantially radially with respect to the common axis (3) and to and from an expanded position clamping a respective bead bundle (19) in a given axial position along the relative half-drum (5);
- the drum (1) being characterized in that the actuating device (21) comprises, in combination, a powered body (32) movable back and forth along the common axis (3);
- and a number of individual guide members (42), each integral with the powered body (32) and connected positively to a relative radial rod (22) to move the relative sector (25) to and from the expanded position in response to axial displacements of the powered body (32) along the common axis (3).
Dependencies are inferred from the claim text.