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AssigneeJohannes Schaefer vorm. Stettiner Schraubenwerke GmbH & Co. KG
InventorsHans G. Funk, Frank Neumann, Dankmar Schafer
Estimating the term…
A plug-in connection for the connection of tube and hose lines, in particr for use in tube-line systems of motor vehicles, consists of a male part (S), on which is provided a clip receiving locking groove, a female part (A), into which the male part can be sealingly inserted and on which female-part cavities are provided, with which the locking groove can be axially aligned. The locking of the male part (S) and the female part (A) is obtained by means of a locking clip. To achieve a long lifetime for the plug-in connection even under changing loads and to achieve a simple handling and inexpensive manufacture, the legs (28, 29) of the locking clip (St.sub.1) can be spread apart by an elastic deformation and can be maintained in the spread-apart position disengaged from the male part locking mechanism. Between the female part (A) and the male part there is arranged a spring (F) which guyes these parts in an axial direction with respect to one another. A seal ring (D.sub.1) is furthermore arranged in a peripheral groove (20) on the male part (S), which seal ring rests sealingly on a cylindrical inner surface (6) of the female part (A).
In a plug-in connection for connecting tube and hose lines, comprising a male-part having thereon first means defining a clip-receiving, radially outwardly opening, locking groove, a female-part having second means thereon adapted to sealingly receive therein said male-part, said female-part having third means defining a radially inwardly opening cavity means thereon adapted to be radially aligned with said locking groove, a locking clip with legs, said legs of said locking clip being adapted to be received in both said cavity means in said female-part and said locking groove when radially aligned with each other, the improvement comprising each of said legs of said locking clip have fourth means defining an extension extending transversely to the longitudinal length of said leg, wherein said female-part has fifth means defining plural abutments in said cavity means adapted to engage and abut said extensions, said abutments being oriented adjacent the peripheral surface of said female-part, radially outside the region whereat said extensions are located when said locking clip serves to lock said male-part to said female-part, said locking clip being supported on said female-part for radial movement relative to said female-part, said locking clip being made of elastically yieldable material, said extensions being oriented, in a relaxed condition of said locking clip, adjacent one another spaced from said abutments, surface means on said female-part for effecting a spreading apart of said legs on said locking clip in response to said locking clip being moved radially of said female-part whereby a radial movement of said locking clip relative to said female-part will cause said extensions and said legs to spread apart to bring said legs wholly out of said locking groove to thereby release the lock holding said male-part in said female-part and to thereby facilitate a relative axial movement between said male-part and said female-part, said extensions eventually coming into abutting relation with said abutments during a continued radial movement to thereby prevent said locking clip from being removed from its connected relationship with said female-part and said legs thereof from being further spread apart.
In a plug-in connection for connecting tube and hose lines, comprising a male-part having thereon first means defining a clip-receiving locking groove, a female-part having second means thereon adapted to sealingly receive therein said male-part, said female-part having cavity means thereon adapted to be radially aligned with said locking groove and an end face facing toward said male-part, a locking clip with legs, said legs of said locking clip being adapted to be received in both said cavity means in said female-part and said locking groove when radially aligned with each other, the improvement comprising said locking clip being a spring ring having a generally C-shape, said spring ring having, in a relaxed condition thereof, spaced apart free ends and an outer diameter that is greater than an outer diameter of said male-part so that a radially outer segment of said spring ring is received in said cavity means on said female-part, an inner diameter dimension of said spring ring being greater than a diameter of a bottom wall of said locking groove, but less than an outer diameter of said locking groove, said spring ring having a radial thickness dimension such that a tensioning of said spring ring, caused by a reduction in the outer diameter of said spring ring to a size less than an inner diameter dimension of said cavity means on said female-part will cause said spring ring to be removed from said cavity means and become wholly oriented in said locking groove to allow said male-part and said female-part to become separated from one another, at least a portion of said radial thickness dimension of said spring ring being retained in said locking groove of said male-part when said spring ring is in said relaxed condition, said female-part having a recess therein exposing said spaced apart free ends of said spring ring to thereby facilitate access to said free ends of said spring ring to enable a tensioning thereof by the use of a tool, and a cap slidably mounted on said male-part and adapted to be fittingly received over said end face of said female-part adjacent said spring ring, said cap having a nose element received in said recess and snugly between said spaced apart free ends of said spring ring to prevent an inadvertent tensioning of said spring ring.
Dependencies are inferred from the claim text.