APPARATUS FOR EVACUATING SEGMENTED TIRE MOLD

Japanese Patent JP3881390

B2

PROBLEM TO BE SOLVED: To realize easy designing and efficient usage, by evacuating a tire mold cavity when closing a tire mold so as to eliminate the gas in the space.
SOLUTION: An upper sidewall mold assembly 12 is composed of two members: an upper sidewall mold plate 52 and an O ring 36. Therefore, the upper sidewall mold plate 52 in combination with the O ring 36 makes an important air barrier when a tire mold cavity 18 is evacuated. Each of the upper and lower sidewall mold assemblies 12 and 14, as well as tread mold segments 16 constitutes, in combination, a tire mold cavity 18 in a tire mold 10. The tread mold segments 16 can move toward the radially internal or radially external side along an inclined slide 22, corresponding to the vertical movement of a conical actuating ring 20. The actuating ring 20 can move approximately in the axial direction of the tire in the tire mold 10, i.e., in the vertical direction.

JP6646737	Molding mold and compression molding method
JP4742560	Tire vulcanization mold

Veronique Morris-Hellwal
Raymond melux
Klaus Schmidt
Helmut dernbach
Craig David Miller
Bernard Byron Jacobs

JP18385495A

February 14, 2007

July 20, 1995

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THE GOODYEAR TIRE & RUBBER COMPANY

B29C33/02; B29C33/00; B29C33/10; B29C33/42; B29C35/02; B29D30/06; B29L30/00; (IPC1-7): B29C33/02; B29C33/10; B29C33/42; B29C35/02; //B29L30:00

JP61209112A
JP4197713A
JP62077929A
JP3034810A
JP4860781A
JP2265712A

Akio Miyazaki
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki

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