Patent ID: 7677610

Claim:
Connecting and coupling piece ( 1 ) for corrugated tubings ( 2 ) having an end ( 6 ) with an outer shell ( 10 ), the connecting and coupling piece comprising: a housing ( 3 ) comprising a hollow core volume ( 4 ), an entry opening ( 5 ) for receiving one end ( 6 ) of a corrugated tubing ( 2 ), a connecting flange ( 7 ) and a connecting piece ( 8 ) with a pass-through opening ( 9 ); a sleeve ( 12 ) located between the outer shell ( 10 ) of the end ( 6 ) of the corrugated tubing ( 2 ) and an inner shell ( 11 ) of the hollow core volume ( 4 ) of the housing ( 3 ), the sleeve ( 12 ) comprising a multipart synthetic material injection molded part; the tubing end ( 6 ), the sleeve ( 12 ) and the housing ( 3 ) being fixedly connected with one another; a first cylindrical part of the sleeve ( 12 ) forming a core sleeve ( 13 ), a second cylindrical part ( 14 ) of the sleeve ( 12 ) covering at least one subregion of an outer shell ( 33 ) of the core sleeve ( 13 ) and a third cylindrical part ( 15 ) of the sleeve ( 12 ) covering at least a subregion of an inner shell ( 34 ) of the core sleeve ( 13 ); an outer end region ( 22 ) of the core sleeve ( 13 ) containing the entry opening ( 5 ) and having a plurality of longitudinal slots ( 23 ) disposed around the entry opening ( 5 ), the core sleeve ( 13 ) in the outer end region ( 22 ) being divided into a plurality of tongues ( 24 , 25 ) by the longitudinal slots ( 23 ) that are elastically movable in a radial direction, and on at least one of the tongues ( 25 ) of the core sleeve ( 13 ) at least one outwardly directed blocking lobe ( 26 , 27 ) with a stop face ( 40 ) is disposed; and wherein the third cylindrical part ( 15 ) of the sleeve ( 12 ) engages in one piece into the longitudinal slots ( 23 ) of the core sleeve ( 13 ) and at least partially fill the longitudinal slots ( 23 ).