Method and apparatus for producing better balanced tread compone

Details Method and apparatus for producing better balanced tread compone Method and apparatus for producing better balanced tread compone

1975-08-15

1977-01-25

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156405, 152354, B29H 1720

Patent

active

040049582

ABSTRACT:
A method and apparatus for fabricating a laminated band of vulcanizable elastomeric material to be shaped and molded into a pneumatic tire. After the tire carcass is formed a specially prepared extruded strip of tread material of predetermined length is applied and lap spliced at its ends. Prior to its application to the carcass, the strip is longitudinally foreshortened or shrunk to form a slightly thickened portion midway between its ends. After the tire is vulcanized the thickened portion is located approximately 180.degree. circumferentially from the zone of the splice to counterbalance the weight at the zone of the lap splice.

REFERENCES:
patent: 1679560 (1928-08-01), Burdette
patent: 2429032 (1947-10-01), Sheahan
patent: 2690785 (1954-10-01), McWilliams
patent: 2995177 (1961-08-01), Tolonen
patent: 3007511 (1961-11-01), Barns et al.
patent: 3048211 (1962-08-01), Cuthbertson
patent: 3250841 (1966-05-01), Reinhart
patent: 3725163 (1973-04-01), Hofelt
patent: 3847705 (1974-11-01), Habert et al.

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