Device for producing an unvulcanized rubber member for tire...

Details Device for producing an unvulcanized rubber member for tire... Device for producing an unvulcanized rubber member for tire...

2005-06-28

2005-06-28

Utech, Benjamin L. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

C425S363000, C425S369000, C425S380000, C425S382300, C425S385000

Reexamination Certificate

active

06910875

ABSTRACT:
The present invention provides a device for producing an unvulcanized rubber member for tire manufacturing. The device includes an extruder with a die that extrudes the unvulcanized rubber member to form multiple rib-protrusions that extend in a direction corresponding to a circumferential direction of the tire. A conveying apparatus receives the unvulcanized rubber member and conveys it in the extrusion direction. A roller has an outer surface with protruding portions that form multiple grooves in the unvulcanized rubber member that extend in a direction radial direction of the tire and intersect the rib-protrusions.

REFERENCES:
patent: 2907365 (1959-10-01), MacDonald
patent: 3880558 (1975-04-01), Breher et al.
patent: 5478516 (1995-12-01), Malm et al.
patent: 5891276 (1999-04-01), Takahashi
patent: 0 522 416 (1993-01-01), None
patent: 756122 (1956-08-01), None
patent: 60-143944 (1985-07-01), None
patent: 10-067056 (1998-03-01), None

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