Method of building green tires for low-section profile pneumatic

Details Method of building green tires for low-section profile pneumatic Method of building green tires for low-section profile pneumatic

1996-12-17

1998-05-05

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1561281, 1561307, 156133, B29D 3030, B29D 3072

Patent

active

057468605

ABSTRACT:
A low-section profile pneumatic radial tire comprising a radial carcass, a belt, a tread rubber and a pair of sidewall rubbers and having an aspect ratio of not more than 55% is manufactured by using a green tire built through first and second building steps, in which an uncured inner sidewall rubber segment and an uncured outer sidewall rubber segment are previously and separately provided so as to correspond to an inner portion and an outer portion parted from each sidewall rubber of a tire after vulcanization in a radial direction thereof satisfying that an end of a parting face located on an outer surface of the sidewall rubber is not more than 1/2 of a section height of the tire and the uncured inner sidewall rubber segment is stuck at the first building step and the uncured outer sidewall rubber segment is stuck at the second building step.

REFERENCES:
patent: 1220178 (1917-03-01), Brucker
patent: 1661449 (1928-03-01), Tew
patent: 3937862 (1976-02-01), Dillenschneider
patent: 4007069 (1977-02-01), Takayanagi et al.
Patent Abstracts of Japan, vol. 13, No. 334 (M-855), Jul. 27, 1989 (JP-A-01 111 502).
European Search Report, Jan. 25, 1996.

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