Gear drive unit with equalized shift

Details Gear drive unit with equalized shift Gear drive unit with equalized shift

1989-07-31

1991-01-15

Wright, Dirk

Machine element or mechanism

Gearing

Interchangeably locked

F16H 308

Patent

active

049844784

ABSTRACT:
A gear drive unit with an equalized shift is set forth. The gear drive unit is specifically a two-shaft transaxle having multiple forward speeds and at least one reverse speed. The transaxle specifically utilizes an existing transaxle housing originally designed to provide even more forward speeds. Certain existing internal components are also utilized. With the transaxle having fewer forward speeds, the forward speed gears are spaced farther apart on a shaft in the existing housing. To provide an equalized, in-line shift pattern, a shift coupling is employed between certain forward speed gears. The shift coupling connects one of the gears to the shaft when the coupling itself is engaged by a shift key of shift mechanism in the transaxle. Shifting through all gears is thereby accomplished by equal incremental movements of the shift mechanism of the transaxle.

REFERENCES:
patent: 1770290 (1930-07-01), Wise
patent: 1872862 (1932-08-01), Wise
patent: 2045835 (1936-06-01), Coen
patent: 4702119 (1987-10-01), Edwards

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