Clothes dryer variable speed drive system

Details Clothes dryer variable speed drive system Clothes dryer variable speed drive system

1977-04-04

1978-09-12

Croyle, Carlton R.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74227, 7424215R, F16H 712, F16H 1108

Patent

active

041127676

ABSTRACT:
A variable speed drive system for a clothes dryer having a driven rotatable drum wherein the drum may be rotated at high speed, low speed, or no speed during operation of the machine. There is provided an improved mechanism for transmitting torque between a driving rotatable member and the driven rotatable drum through an endless drive belt. The driving rotatable member has a first diameter area and a second diameter area, the first area having a greater diameter than the second. There are two pulley assemblies each being pivotable about each of the first and second diameter areas and each having a drive belt. A shift mechanism for controlling the three modes of drum operation is provided which includes capability to rotate selectively each of the pulley assemblies about the driving member which causes one or both of the drive belts to slip to accomplish the desired mode of drum operation.

REFERENCES:
patent: 952156 (1910-03-01), Trewhella
patent: 1776419 (1930-09-01), Dodge
patent: 2995944 (1961-08-01), Ciaccio
patent: 3006218 (1961-10-01), Maxey
patent: 3864986 (1975-02-01), Bochan
patent: 4019397 (1977-04-01), Bochan

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