B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/151
B29C 45/14 (2006.01) B29C 35/02 (2006.01) B29C 45/26 (2006.01) B29D 30/62 (2006.01)
Patent
CA 1295102
ABSTRACT OF THE DISCLOSURE PROCESS AND APPARATUS FOR INJECTION MOLDING TIRE TREADS A viscoelastic fluid molding material (50) is injected into a tire tread cavity (32) between the mold (10) and an inflatable tread supporting body (30). The clearance distance (A) between the mold (10) and the inflatable tread supporting body (30) is varied to increase the flow of the initial amount of fluid molding material (50) into remote portions of the tire tread cavity (32) and provide for the flow of the final amount of fluid molding material (50) into gate portions (52) while the tread supporting body (30) is being deflected. Circumferentially spaced gates (76) may be spaced from the centerplane (20"-20") of the mold (10") and have runners (80) extending toward the shoulders of the tread supporting body (30") for increased flow of the initial amount of fluid molding material (50") into remote shoulder portions (52") of the tread cavity (32"). Sealing rings (56) at the side edges of the tread cavity (32) prevent flow of fluid molding material (50) into sidewall areas (60) of side members (16,18) of the mold (10).
563285
Sim & Mcburney
The Goodyear Tire & Rubber Company
LandOfFree
Process and apparatus for injection molding tire treads does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for injection molding tire treads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for injection molding tire treads will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1249295