Patent ID: 6952977

Claim:
A robot weight compensation device, comprising: a robot base with a vertical axis perpendicular to the circular shape of said robot base; a carousel rotatable around said vertical axis on said robot base; a rocker articulated to said carousel and rotatable about a horizontal axis by applied force created by a motor; at least two internally pressurized gas-tight hose elements reactively responding to said applied force to compensate and counteract tension of said applied force exerted to ends of the hose elements by an opposing reacting force, the gas-tight hose elements each being built up by an inner gas-tight hose; a fiber covering, said fiber covering including non-elongatable fibers oriented relative to an axis of each of the respective hose elements by an angle not equal to 0° and 90° and covering over each of the respective hose elements; an outer flexible protective jacket covering each fiber covering; and a first and a second fixing elements, each of the hose elements having an end and a distal end and/or the respective fiber covering being fixed by the respective fixing elements with said end of the two hose elements connected to a first fixing element, said first fixing element connected to a first robot part and said distal end of the hose elements connected to a second fixing element, said second fixing element connected to a second robot part that is moveable relative to the first robot part.