Cartesian manipulator

摘要

The invention relates to a cartesian manipulator which is controlled by hand and sight for the purpose of handling heavy loads, relieving the physical strain. The manipulator includes an upturned horizontally movable carriage and a vertically extending cylinder which is fastened to the latter by one end and has a piston rod, designed as a flexurally rigid tube, which plunges into said cylinder fluidically, in particular pneumatically drivably, with a piston and which is rigidly connectable at the lower end to a load pick-up means via a flexurally rigid arm. The arm has a handle for manipulating the load. The cylinder carries at the lower end, internally, at least one guide bush which is equipped with rotating rolling bodies and allows axial and rotational movements and which cooperates with the circumferential surface of the piston rod in a manner absorbing bending movements. It is thus possible to manufacture a manipulator in a simple, lightweight and cost-effective construction, the reliability of which is ensured even in the event of load-induced bending moments occurring and with which manipulation of loads below horizontal obstacles can be achieved.