Tire forming mold

Details Tire forming mold Tire forming mold

2011-01-25

2011-01-25

Mackey, James (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

Reshaping, resizing or vulcanizing means for tire, tire...

C425S046000, C425S812000

Reexamination Certificate

active

07874821

ABSTRACT:
A tire forming mold in which a depression for forming a land portion of a tread surface is provided in a molding surface forming a tread pattern of a tire. The tire forming mold has a pocket provided in the depression, a block fitted into the pocket to form an exhaust chamber in an inner portion of the pocket and holding a laminated blade, which is formed by superposing thin plates, so that one end portion is exposed to the molding surface and the other end portion is exposed to the exhaust chamber, and an exhaust hole having one end portion is communicated with the exhaust chamber and the other end portion is communicated with a mold back face or a mold split face.

REFERENCES:
patent: 2756460 (1956-07-01), Heintz, Jr.
patent: 3692090 (1972-09-01), Brobeck et al.
patent: 04-338512 (1992-11-01), None
patent: 05-504110 (1993-07-01), None
patent: 08-323771 (1996-12-01), None
International Preliminary Report on Patentability for Application No. PCT/JP2008/056296, dated Oct. 13, 2009, 4 pages.

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