Fastening element of a T-shaped profile hose, connection arrangement with the fastening element, setting device as well as manufacturing and connection method

A connection arrangement for connecting a T-shaped profile hose made out of a polymer material with a setting device or a further T-shaped profile hose, with the connection arrangement comprising:

• a) a basic element with a central longitudinal axis having a connecting means for fastening the basic element to the setting device or a further connection arrangement of a further T-shaped profile hose, wherein the basic element comprises a T-shaped recess for receiving the T-shaped profile hose, which extends in a longitudinal direction through the basic element and is open at a head end,
• b) a locking element with which the T-shaped recess is closable perpendicular to the longitudinal axis, and
• c) a fastening element consisting of a one-part sheet metal construction, and the fastening element comprising:
• a rectangular bottom with a central longitudinal axis having a first surface and a second surface opposite to the first surface, and a plurality of locking teeth which project beyond the first surface on one side and are adapted for penetrating into the polymer material of the T-shaped profile hose in use, and for avoiding a relative movement between fastening element and the T-shaped profile hose in a direction parallel to the first surface, wherein the fastening element is arranged in the T-shaped recess.