Endless belt power transmission systems or components – Plural belts or plural output loads
Patent
1987-03-10
1988-09-06
Novosad, Stephen J.
Endless belt power transmission systems or components
Plural belts or plural output loads
474 27, 474 29, 74689, F16H 702, F16H 904
Patent
active
047689978
ABSTRACT:
A two belt drive system is disclosed for lawn and garden tractors and other vehicles especially of the type including a variable speed transmission/transaxle having a constant speed rotational input, a variable speed rotational input, and an output speed dependent on the rotational speed of the variable input. A first drive belt is mounted for rotation in one direction on an engine drive pulley, a first pulley on one of the transmission/transaxle inputs, and one pulley of a variable diameter pulley assembly. A second drive belt is mounted for rotation in the same direction as the first belt on a second pulley on the other transmission/transaxle input and the other pulley of the variable pulley assembly. Shifting the position of the variable pulley assembly with a hand control changes the belt receiving diameters of the variator pulleys such that the rotational speed of the second drive belt, second pulley, transmission/transaxle output, and resulting ground speed of the tractor are all adjustable with the hand control while the engine drives the first drive belt at a constant rotational speed.
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Page Rocky H.
Bui Thuy M.
Novosad Stephen J.
Tecumseh Products Company
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