Resilient mold for tread
AssigneeMichelin Recherche et Technique S.A.
InventorFrancois Chamoy
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Abstract
A resilient annular or ring-shaped mold for molding a crude rubber tread covering a vulcanized tire carcass, the mold being made of a resilient material, characterized in that it has provision for limiting its diameter in compression.
Claims10
A resilient mold assembly for molding a crude rubber tread covering a vulcanized tire carcass, comprising a ring-shaped mold made of a rubbery material and means for limiting the diameter in compression.
Apparatus for molding a crude rubber tread on a vulcanized tire carcass, comprising:
- a resilient mold assembly comprising a ring-shaped mold made of a rubbery material and means for limiting the diameter of the mold in comprisession, the limitation means comprising a circumferential groove in the outer surface of the mold and metal elements within the circumferential groove and juxtaposed in a rest position, so that the metal elements form a metal ring;
- a mounting rim for said carcass;
- and
- two resilient flanges for covering the outer surface of the tire casing constituted by the carcass and a crude rubber tread covering the carcass.
A resilient mold assembly for molding a crude rubber tread covering a vulcanized tire carcass, comprising a ring-shaped mold made of a rubbery material and comprising a rigid ring surrounding the ring-shaped mold for permitting limited expansion of the mold in a region in contact with the crude rubber tread while limiting said expansion.
Dependencies are inferred from the claim text.