Agricultural tractor

Details Agricultural tractor Agricultural tractor

1999-09-10

2000-10-31

Wright, Dirk

Machine element or mechanism

Gearing

In series plural interchangeably locked nonplanetary units

B60K 1706

Patent

active

06138528&

ABSTRACT:
A propelling transmission for an agricultural tractor includes a main change speed mechanism, an auxiliary change speed mechanism, and a high/low change speed mechanism for providing two, high and low, speeds with a smaller transmission ratio than a transmission ratio between speed stages of the main change speed mechanism. The main change speed mechanism, auxiliary change speed mechanism and high/low change speed mechanism are arranged in series. Speeds in a low-speed range for an operational run among speeds provided by the main change speed mechanism and auxiliary change speed mechanism are combined with the two speeds provided by the high/low change speed mechanism. The propelling transmission prevents the high/low change speed mechanism from being operated to the low speed in a high-speed range for a road run among the speeds provided by the main change speed mechanism and auxiliary change speed mechanism, whereby the high-speed range is combined only with the high speed provided by the high/low change speed mechanism.

REFERENCES:
patent: 4590817 (1986-05-01), Bennett
patent: 4802384 (1989-02-01), Schwarz et al.
patent: 5088968 (1992-02-01), Horii et al.
patent: 5117702 (1992-06-01), Rodeghiero et al.
patent: 5249481 (1993-10-01), Lasoen
patent: 6076430 (2000-06-01), Huber et al.
Operator's Manual for Kubota Tractor models M7580, M8580, M9580, 6 pages--(7 sides).
Ford 145 to 210 PTO hp GENESIS.TM. 70 Series Tractors 8670 8770 8870 8970. 4 pages.

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