Patent ID: 8205912

Claim:
A fluid line coupling defining axial and radial directions perpendicular to one another, comprising: a receiving part; a plug-in part including an annular collar, said plug-in part insertable into said receiving part; a locking part connectable to said receiving part and including a plurality of elastically resilient spring tongues, said spring tongues extending along the axial direction and including radially inwardly-projecting locking projections, said locking projections engagable behind said annular collar of said plug-in part; a securing part including a plurality of elongate securing arms corresponding to said plurality of said spring tongues of said locking part, said securing part movable relative to said receiving part between a releasing position, and a securing position in which each said securing arm bears against a respective associated spring tongue of said locking part; and said securing part and said receiving part each including guide elements, said guide elements of said securing part and said guide elements of said receiving part engageable with one another to displace said securing part in relation to said receiving part.