Process and apparatus for building tyres for vehicle wheels
AssigneePirelli Tyre S.p.A.
InventorsMaurizio Marchini, Gaetano Lo Presti
Life of this patent
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Abstract
An apparatus for building a tyre for a vehicle wheel includes a building drum having at least one first outer circumferential surface, and at least one pair of auxiliary support members removably in engagement with the building drum, each in axial side by side relationship with a respective end of the building drum and having second outer circumferential surfaces extending in the continuation of the first outer circumferential surface so as to support at least one component of the tyre. Each of the second outer circumferential surfaces has at least one non-stick circumferential portion and at least one sticking circumferential portion.
Claims17
An apparatus for building a tyre for a vehicle wheel, comprising:
- a building drum having at least one first outer circumferential surface;
- and
- at least one pair of auxiliary support members configured to be removably engaged with the building drum, each in axially approached relationship with a respective end of the building drum and having second outer circumferential surfaces extending in a continuation of said first outer circumferential surface for supporting at least one component of the tyre,
- wherein each of the second outer circumferential surfaces has a plurality of non-stick circumferential portions and a plurality of sticking circumferential portions, the non-stick and sticking portions arranged in an alternating manner along the axial extension of each auxiliary support member and comprising a first sticking circumferential portion having an axial width of between about 20% and about 35% of an overall axial width of one of said auxiliary support members.
Dependencies are inferred from the claim text.