Four wheel drive vehicles
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United States of America Patent
Stats
-
Aug 15, 1995
Grant Date -
N/A
app pub date -
Dec 14, 1993
filing date -
Dec 19, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A braking facility is described for a four wheel drive vehicle having front and rear axles with front and rear pairs of wheels, an engine driving the rear wheels and also connectable to the front wheels via a four wheel drive clutch, and left and right hand brakes on the rear axle operated by a main brake actuating system. The braking facility includes a hand brake lever which operates the left and right rear brakes via a system independent from the main brake actuating system. It also includes a sensor associated with the hand brake lever and arranged to engage automatically the four wheel drive clutch when the hand brake is operated to provide a hand brake lever operated braking facility connected to all four wheels which is independent of the main brake operating system and which is operable when the vehicle is in motion.
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