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US 4,068,989 AGranted
Tire curing press
AssigneeNRM Corporation
InventorArmindo Cantarutti
Life of this patent
Estimating the term…
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AssigneeNRM Corporation
InventorArmindo Cantarutti
Estimating the term…
A tire curing press which includes a center mechanism projecting from the bottom mold section, such center mechanism including a top movable clamping plate supporting the open upper end of a shaping bladder, and a chuck in the top mold section interfitting between the bead ring on the top mold section and the top plate on the center mechanism, when the press is closed, the chuck including toe portion adapted to fit under the bead of the cured tire, a conical skirt portion centering the I.D. of the tire bead shortly after the press begins to open, and a heel portion adapted to bear against the bladder as the chuck opens. The cured tire is then under the control of the chuck and is maintained centered as the tire is stripped from the mold sections and the bladder from the tire. The bladder may be stripped from the tire by vertically elongating the bladder with the chuck remaining in contact with the top plate. When the shaping bladder is clear of the tire, the chuck is elevated to lift the cured tire to clear the projecting center mechanism as the press head and top mold section move rearwardly. When fully opened, the chuck extends to place the tire on a tire receiver or take-away conveyor when the chuck collapses. In this manner, the tire is always centered and significant dropping or uncontrolled free movement of the tire is avoided.
A tire curing press of the type wherein a top movable mold section moves vertically away from and horizontally with respect to a stationary bottom mold section, an upstanding bladder center mechanism in said stationary mold section which includes a movable top plate, and an expandable and collapsible chuck means in said movable mold section cooperating with said top plate and operative when expanded to secure the cured tire shortly after the press begins to open, first to hold the tire while the tire is stripped from the mold sections and the bladder is stripped from the tire, and then to remove the cured tire from the press with the movable mold section.
A press as set forth in claim 55 wherein said bladder is open-ended, said center mechanism projecting from said bottom mold section and including a clamping assembly for the upper open end of said bladder, a part of which is said top plate, said top plate having a conical pilot surface on the exterior thereof, said chuck means including an interior pilot surface adapted to mate therewith when said chuck means is collapsed.
Dependencies are inferred from the claim text.