Push-fit connector for joining two fluid lines

Details Push-fit connector for joining two fluid lines Push-fit connector for joining two fluid lines

1995-04-13

1996-04-30

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285308, 285319, 285921, F16L 3500

Patent

active

055118275

ABSTRACT:
A push-fit connector for joining two fluid lines (1, 4), one of which is provided with a retaining rib (2), has a sleeve (5) with radial apertures (12, 13). A latching device (6) which can be inserted into the sleeve (5) has retaining arms each provided with a hook (20) for gripping behind the retaining rib (2) and a radially external inclined surface (21). When the sleeve (5) and latching device (6) move apart, the inclined surfaces (21) are compressed against a front edge of an aperture (12) receiving the hook (20) in an axially displaceable manner, so that the hook (20) stays correspondingly more tightly engaged with the retaining rib (2). When the latching device (6) and the inserted fluid line (1) are pulled apart, a radially internal inclined surface (23) of the hook comes into contact with the retaining rib (2) so that the retaining arms (18) are spread apart and make uncoupling possible. To facilitate uncoupling, the latching device (6) has at least one unlatching arm (19) between at least one pair of adjacent retaining arms (18), which unlatching arm projects outwards through an aperture (13) in the sleeve (5) in an axially displaceable manner.

REFERENCES:
patent: 4836580 (1989-06-01), Farrell
patent: 5112086 (1992-05-01), Gruber et al.
patent: 5284369 (1994-02-01), Kitamura
patent: 5320390 (1994-06-01), Kodama

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