Patent ID: 8747016

Claim:
A profile bar connection system for connecting at least two first and second profile bars extending approximately perpendicularly to each other, the connection system comprising: first and second clamp halves each having a first end and a second end, wherein the first and second clamp halves are secured to a first profile bar by a self-locking action when placed about the first profile bar, wherein the first and second clamp halves each have an enclosing angle of more than 180 degrees or an enclosing length that is greater than half of an outer circumference of the first profile bar, the enclosing angle or the enclosing length providing the self-locking action on the first profiled bar, and connected to each other at the first ends and the second ends in a joined state to join the first and second clamp halves; a clamping device that is connectable to the first and second clamp halves when the first and second clamp halves are placed about the first profile bar, wherein the clamping device holds a second profile bar; wherein the first ends are connected to each other in the joined state of the first ends with form fit; wherein one of the second ends has a tongue and the other of the second ends has a recess; wherein the second ends are connected to each other in the joined state of the second ends such that the tongue engages the recess and a gap remains between a tongue end of the tongue and the recess in a circumferential direction of the joined first and second clamp halves, the gap allowing relative movement of the second ends toward each other in the circumferential direction; wherein the clamping device when tightened compresses the second ends toward each other; wherein the first end of the first clamp half has a first nose provided in the direction toward the first clamp half with an undercut, wherein the first nose engages a matching cutout provided at the first end of the second clamp half; wherein the second end of the first clamp half has a second nose provided with an undercut, wherein the second end of the first clamp half is provided with the tongue that engages the recess that is formed on and extends on a radial inner side of the second end of the second clamp half.