Continuous cured innerliner for tires
AssigneeThe Goodyear Tire & Rubber Company
InventorAlbert James Yovichin
Life of this patent
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Abstract
The present invention is directed toward an improved method of manufacturing a pneumatic tire using a bladderless curing system. The tire is built on an associated tire building drum (26) by the layering of multiple tire components on the drum (26); one of the components is an innerliner strip (28). In accordance with the disclosed invention, the innerliner strip (28) is formed with precured regions (32). The precured regions (32) are formed by curing the innerliner strip (28) at one or more regions intermediate of the ends (30) of the strip (28). The strip (28) is applied to the tire building drum (26) and the ends (30) are spliced to one another.
Claims10
In a method for manufacturing a pneumatic tire using bladderless cure, the method comprising building a tire on an associated tire building drum by the layering of multiple tire components on the drum wherein one component is an innerliner strip (28), and curing the tire in an associated bladderless shaping and vulcanizing mold, wherein the innerliner strip (28) is formed with precured regions (32), the improvement being characterized by:
- prior to applying the innerliner strip (28) to the tire building drum (26), curing the innerliner strip (28) at one or more regions (32) intermediate of uncured ends (30) of the strip (28) to form the precured regions (32),
- applying the strip (28) to the building drum (26), and
- splicing the uncured ends (30) of the strip (28) to one another.
In a method for manufacturing a pneumatic tire using bladderless cure, the method comprising building a tire on an associated tire building drum by the layering of multiple tire components on the drum wherein one component is an innerliner strip (28), and curing the tire in an associated bladderless shaping and vulcanizing mold, wherein the innerliner strip (28) is formed with precured regions (32), the improvement being characterized by:
- prior to applying the innerliner strip (28) to the tire building drum (26), curing the innerliner strip (28) at one or more regions (32) to a full depth of the strip,
- the regions (32) being intermediate of uncured ends (30) of the strip (28) to form the precured regions (32),
- applying the strip (28) to the building drum (26), and
- splicing the uncured ends (30) of the strip (28) to one another.
In a method for manufacturing a pneumatic tire using bladderless cure, the method comprising building a tire on an associated tire building drum by the layering of multiple tire components on the drum wherein one component is an innerliner strip (28), and curing the tire in an associated bladderless shaping and vulcanizing mold, wherein the innerliner strip (28) is formed with precured regions (32), the improvement being characterized by:
- prior to applying the innerliner strip (28) to the tire building drum (26), forming the innerliner strip (28) from a continuous strip of elastomeric material (22) by curing the continuous strip (22) with selective predetermined uncured locations (24, 24′) having a defined length relative to the length of the continuous strip extending across the width of the continuous strip (22), cutting the continuous strip (22) to form the innerliner strip (28) with intermediate precured locations (32) and uncured ends (30);
- applying the strip (28) to the building drum (26);
- and
- splicing the uncured ends (30) of the strip (28) to one another.
Dependencies are inferred from the claim text.