Method of making poly-V grooved pulley

Details Method of making poly-V grooved pulley Method of making poly-V grooved pulley

1990-02-07

1991-12-03

Echols, P. W.

Metal working

Method of mechanical manufacture

Pulley making

72348, B21K 142

Patent

active

050689649

ABSTRACT:
In a method of making a poly-V grooved pulley from a circular flat plate of sheet metal of a predetermined thickness, the central portion of the parent flat plate is pressed to form a cup-shaped blank integral with a circular flat peripheral flange of the same thickness as that of the parent flat plate, the cup-shaped blank having a predetermined thickness thinner than that of the parent flat plate. The cup-shaped blank is pressed to form a hub wall, and the circular flat peripheral flange is drawn to form a cylindrical pulley flange wall. At the final stage, the cylindrical pulley flange wall is formed in its exterior periphery with a plurality of V-shaped grooves for a poly-V belt.

REFERENCES:
patent: 1383747 (1921-07-01), Noble
patent: 2869223 (1959-01-01), Killian et al.
patent: 3080644 (1963-03-01), Previte et al.
patent: 3368376 (1968-02-01), Previte
patent: 3851366 (1974-12-01), Jacobs
patent: 3977264 (1976-08-01), Sproul
patent: 4109542 (1978-08-01), Kraft
patent: 4273547 (1981-06-01), Bytzek
patent: 4313323 (1982-02-01), Kanemitsu
Konstruktionen in Blech und in Druckgusse, Von Pro. Dr.-Ing Gerhard Oehler, Klepzig Fachberichte 81 (1973), pp. 195-197.

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