Wide range transmission

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing

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Details

74363, 74371, 74372, 74375, F16H 3708, F16H 308

Patent

active

047139838

ABSTRACT:
A transmission, especially for use with small tractors and the like, provides a number of higher speed drives, typically associated with mowing, and a number of extremely slow "creep" speed drives to make said tractor more compatible with snow blower and tiller implements. All speed drives are available in a single range with each being selected sequentially by movement of a single gearshift lever. A unique reduction train exploits one or more higher speed drives to drive the "creep" speed pinions and a safer reverse speed drive at reduced rotational speed. The extremely wide speed ratio range will also dismiss the smallest pinions and severe speed increasing drives presently employed in these transmissions to greatly increase capacity and to reduce costs.

REFERENCES:
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patent: 4480501 (1984-11-01), Von Kaler
patent: 4611504 (1986-09-01), Rundle
patent: 4662241 (1987-05-01), Edwards

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