Four-wheel drive type working vehicle

Abstract

Abstract PURPOSE:To prevent the ground from being broken because of the slip by suppressing the increase of the peripheral speed for a front wheel when the slip rate of the wheel is over a prescribed vale, in the constitution in which the turning radius is reduced by increasing the peripheral speed of the front wheel during the turn of a car body. CONSTITUTION:The power of an engine 4 of a working vehicle is transmitted to a transmission case 6 through a main clutch 5, and then transmitted to the front and rear wheels 1 and 2 through the output shafts 7 and 9. In this constitution, a mechanism 15 for detecting the slip rate of a rear wheel 2 is constituted of a sensor 13 for detecting the revolution speed of the output shaft 7 and a sensor 14 for detecting the speed of a car body for the ground G. When the slip rate of the rear wheel 2 is over a prescribed value, the switching towards the speed increase of a front wheel speed increasing devices 8 by a selecting means 12 is suppressed by a suppressing mechanism 19, even if the output of a sensor S for detecting the steering angle of a knuckle arm 10 for steering a front wheel 1 is over a prescribed value.

Inventors

• 👤 Akira Inoue
• 👤 Toshinobu Owada

Bibliographic Details