Method for manufacturing pneumatic tire

Details Method for manufacturing pneumatic tire Method for manufacturing pneumatic tire

2007-10-10

2010-12-28

Knable, Geoffrey L (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C152S450000, C156S117000, C156S123000, C156S130500, C156S133000, C156S414000

Reexamination Certificate

active

07857926

ABSTRACT:
A method for manufacturing a pneumatic tire with a noise damper on the inside of the tread portion, comprises the steps of: building a raw tire on an annular tire building core; placing the raw tire within a vulcanizing mold together with the core; and heating the raw tire in the mold. The tire building core has a molding face for molding an inner surface of the tread portion. The molding face is provided with a groove extending in the tire circumferential direction. In the step of building the raw tire, an expandable damper material is placed in the groove. During heating the raw tire to be vulcanized, the damper material expands in the groove, whereby the expanded material forms the noise damper integrated into the radially inside of the tread portion.

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