Tire manufacturing mold
AssigneeBridgestone Corporation
InventorsYasutada Yoda, Seisuke Sueyasu, Shoji Futamura
Life of this patent
Estimating the term…
Abstract
A tire manufacturing mold comprising a profile ring having a contour corresponding to the outer profile of a tire being molded, including at least the tread thereof, and a net ring having a faying surface for making contact with the contour surface and consisting of ribs and/or lugs for forming the grooves of the tire being molded. The net ring is disposed on the contour surface of the profile ring. The profile ring and/or the net ring has gas vent members embedded so as to form gas vent gaps on the periphery thereof; and the gas vent gaps formed on the periphery of the gas vent members being constructed as gas vent passages.
Claims7
A tire manufacturing mold comprising a profile ring having a contour surface corresponding to the outer profile of a tire being molded, including at least the tread surface thereof, and a net ring having a faying surface for making contact with said profile ring contour surface and consisting of ribs and/or lugs for forming the grooves of said tire being molded, said net ring having an outer surface which include no portion of an inner circumferential surface of said profile ring said, profile ring having gas vent members detachably embedded on said profile ring contour surface at locations relative to said net ring and comprising a part of said profile ring contour surface;
- gas vent gaps being formed on the periphery of said gas vent members;
- part of said gas vent members on the periphery thereof being covered by said net ring faying surface;
- and said gas vent gaps on the periphery of said gas vent members not covered by said net ring faying surface constituting part of gas vent members facing to the back side of said profile ring.
A tire manufacturing mold comprising;
- a profile ring having a contour surface corresponding to the outer profile of a tire being molded, including at least the tread surface thereof, and a net ring having a faying surface for making contact with said profile ring contour surface and having ribs and/or lugs for forming the grooves of said tire;
- said net ring being placed on said profile ring contour surface;
- and said net ring being constructed by joining a net ring proper and plate-shaped gas vent members forming said faying surface to form gas vent passages facing a back side of said profile ring and having a cross venting function on said joined portion.
Dependencies are inferred from the claim text.