| 摘要 |
<p>Three-part vertical stack-up mold apparatus for molding a composite styled wheel (20) wherein the middle mold part is metal disc and rim (22) subassembly operable as metal street wheel when a pneumatic tire is mounted on said rim. The lower mold part defines a mold cavity (260) axially adjacent the outboard face of the disc and rim mold part and has a mold cavity surface to define an ornamental configuration for the outboard face of a plastic body of the composite wheel. An upper mold part seats (52) in the mold-closed condition against the inboard face of the disc urging the same into sealing engagment with the lower mold part. The lower mold part includes outboard body vent pocket forming cores adapted for individual registry with disc air vent openings so as to protrude therethrough into the mold cavity in the closed condition of the mold. The upper mold part includes an expansible lid seal (90) juxtaposed in mold cavity sealing relation to the disc inboard face and the cores in the mold-closed condition. The lid seal is radially outwardly expansible in response to clamping pressure of the upper mold part against the middle mold part as resisted by lower mold part during mold closure to thereby radially outwardly enlarge the sealing engagement of the lid seal against the disc inboard surface in the mold-closed condition, and vice versa during mold opening. <IMAGE></p> |
