Process and apparatus for building tyres for vehicle wheels
AssigneePirelli Tyre S.p.A.
InventorsCesare Emanuele AMURRI, Christian DE COL
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Abstract
A process for building tyres for vehicle wheels includes: forming a tyre in process, the tyre including a belt structure and depositing a tread band in a position radially external to the belt structure by winding a continuous elongated element made of elastomeric material according to axially adjacent or partially overlapped coils. During the deposition of the tread band and on at least one of the coils already wound, a conductive liquid elastomeric compound is applied, the compound continuously extended between a radially outer surface of the tread band and a radially outer surface of the belt structure to generate electrically conductive paths and free zones.
Claims9
A process for building tyres for vehicle wheels, comprising:
- forming a tyre in process, the tyre comprising a belt structure;
- depositing a tread band in radially outer position with respect to said belt structure by winding a continuous elongated element made of elastomeric material according to coils that are axially adjacent and/or partially superimposed;
- and
- applying, during the deposition of the tread band and on at least one of said coils already wound in radially outer position with respect to said belt structure, a conductive liquid elastomeric compound continuously extended between a radially outer surface of the tread band and a radially outer surface of the belt structure so as to generate a plurality of electrically conductive paths connecting the radially outer surface of the tread band with the radially outer surface of said belt structure and free zones adapted to directly adhere with a subsequent axially adjacent coil.
-29. (canceled)
Dependencies are inferred from the claim text.