Brush head for large manipulators

A brush head for a large manipulator, comprising:

• a multi-directional joint on said large manipulator, a carrier coupled to said multi-directional joint;
• a brush shaft rotatably supported on said carrier, said brush shaft being motor-driven in a predefined direction of rotation, and said brush shaft being divided into plural shaft sections;
• a brush roller relatively rotatably supported on said brush shaft and being rotatably driven by and with said brush shaft, said brush roller being divided into at least two axially separate roller sections each having centrifugally responsive, flexurally limp bristles thereon adapted to contact against a surface to be cleaned, said bristles on each said brush roller defining a brush section, a number of said plural shaft sections corresponding to the number of said roller sections;
• each said brush section being defined by a concentric arrangement of a single said shaft section and a single said roller section, said brush sections including bracing means for axially bracing one said brush section against the other, said bracing means being positioned adjacent said shaft sections;
• at least one torque pickup means being disposed between respective radially spaced said shaft sections and said roller sections, said torque pickup means including a weighing cell protruding radially outwardly from said shaft sections toward said roller sections, and a tensioning member extending between said weighing cell and an inner side of one associated said roller section;
• and radial spacers arranged spaced apart in a circumferential direction between said shaft sections and said roller sections, said radial spacers being rigid in an axial and a radial direction and are yielding in the circumferential direction.