Patent ID: 6612623
Filing Date: 2003-09-02
Classification: F16L

Abstract:
A connecting device having a receiving opening (14) for a pipe (16) conducting a pressure medium, the connecting device comprising:a sleeve-like insert part (2) operative to be inserted in a frictional or form- fitting manner into a connecting opening (10) of a connecting body (12) so as to surround the receiving opening (14) for a pipe (16) to be inserted; a sealing element (4) operative to be inserted into the connecting opening (10) for producing a seal between the connecting body (12) and the pipe (16); a resilient and substantially annular holding element (6) with holding arms (20) which extend radially inward into the receiving opening (14); the holding arms being distributed over a circumference of the sealing element and acting in a barb-like manner against the outer circumference of the pipe (16); the holding element (6) comprising an outer circumferential region (6a) held in an inner radial annular groove (36) of the insert part (2); the inner annular groove (36) being formed at an initially hollow-cylindrical end section (38) of the insert part (2) flanged to receive the outer circumferential region (6a) of the element (6) in such a way that the outer circumferential region (6a) of the holding element (6) is held in a substantially clearance-free manner without play axially, as seen in the direction of a plug-in axis (24) of the pipe (16), relative to the insert part (2), so that elastic deformation of the holding element takes place mainly in the region of the holding arms (20) when inserting or releasing the pipe (16), and so that the holding element (6) is held by the outer circumferential region (6a) in a displaceable manner radially, transversely with respect to the plug-in axis (24) of the pipe, whereby self-centering of the pipe is achieved during the process of inserting the pipe into the receiving opening.