Patent ID: 6305721
Filing Date: 2001-10-23
Classification: B60T,F16L

Abstract:
A plug-in coupling for pressure application systems, comprising:a receiving component defining an opening and a recess, and having a holding element secured within said recess, said holding element biased in a closed position, and movable to an opened position;a connector component having a connecting shaft, said connecting shaft having a radial step engageable with said holding element and a limit stop;an expanding cylinder supported on said connecting shaft between said radial step and said limit stop, said expanding cylinder including a flange having a recess; anda spring unit initially supported on said expanding cylinder; and whereinsaid connecting shaft of said connector component is adapted to be inserted into said opening of said receiving component along an insertion direction thereby engaging said radial step with said holding element to prevent loosening of said connector component from said receiving component, and thereby securing said expanding cylinder between said spring unit and said limit stop;said spring unit is adapted to be widened and guided over said flange in a direction opposite said insertion direction and said expanding cylinder is adapted to be subsequently moved along said insertion direction thereby disengaging said radial step from said holding element to allow release of said connector component from said receiving component.