Abstract: The invention provides a separable plug connection comprising a plug member provided with locking wedges and a wedge pusher. That plug connection may constitute a separate part or may be integrated or inserted in units of equipment, machine members etc. The plug connection is radially and axially locked and is non-positively retained and held against rotation. The housing member is provided with axially extending grooves, which receive ribs provided on the outside periphery of the plug member. Resiliently mounted locking members engage actuating forks of the wedge pusher and when the plug member has been forced into the housing snap into and are locked in an annular groove provided at the end of the grooves.

Abstract: The invention proposes a quick connection which has utility in a wide field, for instance, for connecting fluid lines, electric cables, etc., and comprises an inserted tubular end portion, which is formed near its extreme end with concave recesses serving as detent means, and which is provided with a radially acting locking collar. The second tubular end portion comprises a socket, which contains an inserted locking ring, which has detent fingers, which releasably interlock with the concave recesses of the inserted tubular end portion and are provided on their back side with reversely foldable, thin webs which bear on the inside surface of the socket. Such quick coupling can be resiliently interlocked simply in that the tubular end portions are urged into each other, and can be unlocked only by an angular movement. The coupling is particularly adapted to be connected and disconnected by industrial robots in automated production sequences. The coupling transmits longitudinal forces and is radially locked.