Plants for the immersion treatment of bodyworks

A plant for dip-treatment of bodies, the plant comprising:

• at least one skid configured to support a body to be treated;
• at least one process liquid tank;
• a skid transportation line;
• and
• a system for overturning and immersing the body on the at least one skid which has been positioned above the at least one process liquid tank using the skid transportation line;
• wherein the skid transportation line comprises parallel travel ways arranged along an outside of lateral edges of the at least one process liquid tank,
• wherein the at least one skid comprises, on corresponding opposite sides, lateral mounting elements which rest on the travel ways for supporting and moving the at least one skid above the at least one process liquid tank,
• wherein the system for overturning and immersing the body comprises, on the at least one skid, a support for the body which is rigidly connected to a shaft arranged transverse to the skid transportation line, and which is configured to rotate about an axis so as to overturn the body between a first upper advancing position and a second lower position immersed inside the at least one process liquid tank,
• wherein the system for overturning and immersing the body further comprises a motor unit configured to control rotation of the shaft, which is arranged not on the at least one skid, but on the outside of the at least one process liquid tank along one of the lateral edges of the at least one process liquid tank,
• wherein the motor unit and the shaft are configured to be coupled together by a first coupling element on the at least one skid and connected to the shaft, and a second coupling element on the motor unit,
• wherein the first and second coupling elements are configured to engage with each other, so as to be rotationally locked together, when moved toward each other from a predetermined direction,
• wherein the predetermined direction is transverse to the axis of rotation, and
• wherein the rotationally locked first and second coupling elements transmit rotational movement from the motor unit to the shaft.