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US 4,366,609 AGranted
Composite pulley and method for making
AssigneeDayco Corporation
InventorBilly L. Speer
Life of this patent
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Abstract
A novel composite pulley construction is provided, which comprises a continuous, metal peripheral belt supporting and bearing surface, and a plastic body. Also provided is a novel method for making a composite pulley.
Claims12
A method for manufacturing a composite pulley construction for use with at least one endless power transmission belt, said pulley construction comprising means for mounting said pulley for rotation, an outer peripheral metal surface for receiving and supporting said belt, and a molded plastic sheave supported by said mounting means and supporting said metal surface which comprises the steps of:
- (a) providing a mold means having a pulley-shaping cavity having a circumferential portion of desired configuration for forming said belt receiving and support surface;
- (b) disposing said mounting means within said cavity;
- (c) disposing a cylindrical metal sleeve within said cavity;
- (d) closing said cavity;
- (e) injecting a plastic material into said cavity between said mounting means and said metal sleeve under pressure;
- (f) forcing said plastic material under said pressure against said cylindrical metal sleeve;
- (g) deforming said cylindrical metal sleeve under pressure of said material to conform to said configuration of said circumferential portion;
- and
- (h) forming said receiving and supporting surface of said deformed sleeve.
6 more elements
Dependencies are inferred from the claim text.