Pneumatic tire manufacture

Details Pneumatic tire manufacture Pneumatic tire manufacture

1975-05-21

1977-11-08

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156125, 156414, 264326, 425 51, B29H 1704

Patent

active

040574466

ABSTRACT:
In the moulding of the tread portion of a pneumatic tire the radially inner surface of the mould cavity is defined by the radially outer surface of an annular former of elastomeric material. The former is contracted, a breaker assembly is built onto it and it is allowed to expand to stress the breaker. In the mould the former is further expanded and is held in compression between mould parts and the breaker to withstand moulding pressure. The former may have inflatable pockets to throw the breaker edges into contact with tire sidewall reinforcements.

REFERENCES:
patent: 1405470 (1922-02-01), Wheatley
patent: 2071864 (1937-02-01), Myers
patent: 2145806 (1939-01-01), Schnedarek
patent: 3218209 (1965-11-01), Travers et al.
patent: 3223566 (1965-12-01), Niclas et al.
patent: 3837986 (1974-09-01), Gortei et al.

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