Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
1999-01-06
2001-07-10
Knable, Geoffrey L. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S111000, C156S126000, C156S128100, C156S378000, C156S396000, C156S406200
Reexamination Certificate
active
06258189
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a method and an apparatus for manufacturing a tire.
2. Description of the Related Art
In a general method for manufacturing a tire, a tread ring building drum forms a tread ring, segments of a transfer which segments are arranged along a circumferential direction and freely reciprocated in a radial direction hold and send the tread ring from the tread ring building drum to a green tire building drum, the green tire building drum unites the tread ring and a carcass ply and forms a green tire, and the green tire is vulcanized.
If a green tire under manufacture has RRO (radial runout, i.e. vertical deviation from circularity), RRO still exists after the tire is vulcanized, and the product lacks uniformity wherein rigidity of the tire is uneven and reaction force upon contacting ground fluctuates due to the deviation from circularity.
It is therefore an object of the present invention to provide a method and an apparatus for manufacturing a tire wherein a tire of good uniformity is manufactured.
REFERENCES:
patent: 3352732 (1967-11-01), Darr
patent: 3835591 (1974-09-01), Cimprich
patent: 3926704 (1975-12-01), Sharp, Jr.
patent: 4502857 (1985-03-01), Hinks
patent: 5441587 (1995-08-01), Byerley
patent: 6-182903 (1994-07-01), None
Endo Yukio
Mizuta Takuya
Omokawa Toshihiko
Sakamoto Masayuki
Suzuki Kazuya
Knable Geoffrey L.
Lorusso & Loud
Sumitomo Rubber Industries Ltd.
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