Method and device for forming tire's annular member

Details Method and device for forming tire's annular member Method and device for forming tire's annular member

2005-05-23

2009-12-01

Vargot, Mathieu D. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C156S124000, C156S422000, C264S310000, C425S117000, C425S327000, C425S395000, C425S402000

Reexamination Certificate

active

07625511

ABSTRACT:
A method and device for manufacturing tire's annular member having a stretch mainly in radial direction by use of simple devices and simple way of pressing with high precision and easiness, as to produce tire product in high quality with no fluctuation of mass and/or uniformity, comprising: a first mold including a profile mold having an annular recess; a second mold which faces the first mold; and an extruder that continuously extrudes a rubber body into the recess of the profile mold. Concurrent with such extruding, the profile mold is rotated by one turn so as to charge the rubber body into the annular recess in a manner as annularly continuous. Then, the first and the second molds are brought abut each other so as to press the rubber body between the profile and second molds; thus shaping the rubber body into a shape defined by the profile mold.

REFERENCES:
patent: 4983239 (1991-01-01), Holroyd et al.
patent: 1-314151 (1989-12-01), None
patent: 2002-187218 (2002-07-01), None

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