Patent ID: 7588411
Filing Date: 2009-09-15
Classification: B62D,B66F,E02F

Abstract:
1. A working machine which includes a working arm for carrying a working implement, the arm being raisable and lowerable about a generally horizontal axis by a power operated device, a cab structure for an operator, an engine for providing power to a ground engaging drive structure to drive the machine over the ground and for operating the working arm, each of the working arm, the cab structure and the engine being mounted on a machine chassis, wherein the chassis includes a single primary chassis member which provides a substantial resistance to torsional deformation of the machine between the front and rear ends of the machine, the single primary chassis member including a first part which extends longitudinally of the machine at one side of the machine, and a second part which extends transversely of the first part at or towards a front end of the machine, and wherein the cab structure is positioned beside the first part of the single primary chassis member and behind the second part of the single primary chassis member, and the engine is mounted on a sub-frame which is secured to a third part of the single primary chassis member which is located at or towards a rear end of the machine, and which extends transversely of the first part of the single primary chassis member, the sub-frame carrying a rear axle of the machine, and a front axle of the machine being mounted beneath the second part of the single primary chassis member.