Patent ID: 8504251
Filing Date: 2013-08-06
Classification: B66C,E02F

Abstract:
1. An interference prevention control device of a machine having a machine body and provided with a cab and a work equipment mounted on the machine body in such a manner that the cab and the work equipment are capable of moving independently of each other, the interference prevention control device comprising: a cab position sensor for detecting a position of the cab; a tool position sensor for detecting a position of a tool attached to the work equipment; a limiter configured to limit movement of a hydraulic actuator that serves to move the cab; a main pump fluidly coupled to the hydraulic actuator and configured to provide pressurized fluid to the hydraulic actuator to move the cab relative to the machine body; a pilot pump configured to provide pressurized pilot fluid for controlling the supply of pressurized fluid from the main pump to the hydraulic actuator; and a controller that serves to: