Plants for immersion of bodyworks

A plant for treatment of car bodies by immersion in at least one treatment tank, the plant comprising:

• a plurality of transport units each intended to carry a car body;
• a first transport line along which the transport units with the car bodies move sequentially between a starting zone and an arrival zone so as to pass over the at least one treatment tank and to immerse the car bodies using car body immersion devices;
• and
• a second transport line along which empty transport units are returned from the arrival zone to the starting zone;
• wherein the second transport line is configured to convey the transport units rotated on one side relative to a normal position for transporting the car bodies,
• wherein in the arrival zone, there is a first transfer device which picks up a transport unit from the first transport line, rotates the transport unit on one side so as to bring the transport unit into a return condition, and delivers the transport unit to the second transport line, and
• wherein in the starting zone, there is a second transfer device which picks up a transport unit from the second transport line in the return condition, rotates the transport unit into the normal position for transporting the car bodies, and delivers the transport unit to the first transport line.

A plant for treatment of car bodies by immersion in at least one treatment tank, the plant comprising:

• a plurality of transport units;
• a first transport line;
• a second transport line;
• a first transfer device;
• and
• a second transfer device;
• wherein each of the transport units is configured to carry a car body,
• wherein the first transport line is configured to move the transport units sequentially between a starting zone and an arrival zone, so as to pass over the at least one treatment tank and to immerse the car bodies using car body immersion devices,
• wherein the second transport line is configured to return empty transport units from the arrival zone to the starting zone,
• wherein the second transport line is further configured to convey the empty transport units rotated on one side relative to a normal position for transporting the car bodies,
• wherein the first transfer device is configured to pick up a transport unit from the first transport line, to rotate the transport unit on one side so as to bring the transport unit into a return condition, and to deliver the transport unit to the second transport line, and
• wherein the second transfer device is configured to pick up a transport unit from the second transport line in the return condition, to rotate the transport unit into the normal position for transporting the car bodies, and to deliver the transport unit to the first transport line.