Motor vehicles – Having four wheels driven
Patent
1998-12-02
2000-10-03
Johnson, Brian L.
Motor vehicles
Having four wheels driven
180244, 180248, 180247, 74665T, B60K 17348, B60K 17354
Patent
active
061259616
ABSTRACT:
A four-wheel drive vehicle includes a first transmission system for transmitting power from an engine to a left and a right first driving wheel provided with a braking unit, and a second transmission system branching off from the first transmission system to transmit power to a second pair of driving wheels serving as steerable wheels. The second transmission system is provided therein with a frictional transmission passage having a frictional torque, which is smaller than that between the second driving wheels and a road surface, and a direct transmission passage disposed in parallel with the frictional transmission passage, so that either passage can be selected. The frictional transmission passage is selected when a speed-changing operating tool is set to its high speed position or when a steering device is operated beyond a predetermined angle, and the direct transmission passage is selected in all other cases.
REFERENCES:
patent: 4506773 (1985-03-01), Schott
patent: 4671376 (1987-06-01), Ito et al.
patent: 4856611 (1989-08-01), Teraoka et al.
patent: 5067935 (1991-11-01), Brown et al.
patent: 5099943 (1992-03-01), Resca et al.
patent: 5293956 (1994-03-01), Onishi
patent: 5564518 (1996-10-01), Ishii et al.
patent: 5584776 (1996-12-01), Weilant et al.
patent: 5802489 (1998-09-01), Orbach et al.
Johnson Brian L.
Kanzaki Kokyukoko Mfg. Co., Ltd.
Winner Tony
LandOfFree
Four-wheel drive vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Four-wheel drive vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Four-wheel drive vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-186578