Apparatus and method for continuously cleaning and painting of large surfaces and high walls

A system for applying working equipment onto an external wall of a structure, the system comprising:

• a suspended platform anchored to the structure, operably vertically moveable at a constant speed along the external wall, and arranged to cover a plurality of vertical bands on the external wall by moving up and down the vertical bands;
• a positioning system arranged to determine and control a predefined motion pattern of the working equipment relative to the suspended platform, the positioning system mounted on the suspended platform and the positioning system comprising:
• a support connected to the suspended platform;
• a conveyor pivotly mounted on the support, the conveyor arranged to be controllably swung on a pivot;
• and
• a transporter connected to the conveyor and arranged to be controllably moved along the conveyor according to the predefined motion pattern,
• wherein the working equipment is connected to the transporter such as to be applicable to the external wall;
• and
• a stabilization unit connected to the suspended platform and arranged to secure a constant contact to the external wall, stabilize of the suspended platform and direct movements of the suspended platform,
• wherein the predefined motion pattern is selected such as to allow continuous and uniform application of the working equipment horizontally and vertically onto the external wall during the vertical movement of the suspended platform along the external wall, and
• wherein the predefined motion pattern comprises a plurality of cycles, each cycle comprising:
• vertical movements of the transporter generated by swings of the conveyor, in which the working equipment is applied to vertical segments of the external wall;
• and
• diagonal movements of the transporter along the conveyor, each diagonal movement comprising a vertical component and a horizontal component, wherein the vertical component is equal and opposed to the vertical movement of the suspended platform, and in which the working equipment is applied to horizontal segments of the external wall.