초록 ▼

A chassis for a heavy duty vehicle is disclosed herein having an elongated box frame supported on an undercarriage of articulated wheel sets. The undercarriage includes a front wheel set carried on one end of the frame by a pivoting torque box having trailing pivotal arms for rotatably supporting th

A chassis for a heavy duty vehicle is disclosed herein having an elongated box frame supported on an undercarriage of articulated wheel sets. The undercarriage includes a front wheel set carried on one end of the frame by a pivoting torque box having trailing pivotal arms for rotatably supporting the front wheels. A pair of rear wheel sets include a pair of wheel axles carried on trailing arms and controlled by a walking beam assembly and having shock-absorbers and an air cushion device interconnecting the beam assembly with the frame. The pivot coupling at the front wheel torque box with the frame and the beam assemblages interconnecting the frame with the rear wheel sets constitute a three point suspension for the frame. A progression steering mechanism is provided including an eliptical sprocket and chain arrangement which intercouples the rear wheel set with the steering for the front wheel set via a drive shaft operably extending therebetween.

대표청구항 ▼

A vehicle comprising: a rigid chassis; a front wheel set; a pivotal means on the central longitudinal axis of said chassis coupling said front wheel set to one end of said chassis allowing rotation of said front wheel set about said axis; a front steering mechanism for steering said front wheel set

A vehicle comprising: a rigid chassis; a front wheel set; a pivotal means on the central longitudinal axis of said chassis coupling said front wheel set to one end of said chassis allowing rotation of said front wheel set about said axis; a front steering mechanism for steering said front wheel set mounted on said front wheel set for pivotal movement therewith about said pivotal means, whereby said pivotal means allows directional rotation of said front wheel set without changing the geometry of said front steering mechanism; a rear wheel set; a pair of resilient means on opposite sides of said chassis, respectively, mounting said rear wheel set on the other end of said chassis; and a progressive rear steering mechanism connected to said front steering mechanism for turning said rear wheel set at a differential rate with respect to turning of said front wheel set.