Rapid coupling device for snap-fastening a tubular member or a s

Details Rapid coupling device for snap-fastening a tubular member or a s Rapid coupling device for snap-fastening a tubular member or a s

1993-05-19

1994-07-26

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Guide and support

285305, 285 93, 285921, F16L 3500

Patent

active

053322681

ABSTRACT:
Two hoses in the cooling circuit of a vehicle engine are secured to respective tubular members for coupling to respective tubular endpieces of a heat exchanger, e.g. a radiator or a heater. The tubular members have respective through openings extending transversely to their longitudinal axes, and they are associated with a plate disposed in the vicinity of said openings. Each endpiece has a catch groove associated with a respective ramp. In the coupled position, the grooves coincide the openings. Respective branches of a U-shaped spring clip are received in the openings and engage in the grooves when the endpieces are pushed into the tubular members, thereby snap-fastening the coupling device together. The tips of the branches have respective lugs that co-operate with tabs of the plate. The tab are shaped to cam the lugs during snap-fastening in such a manner as to ensure that, providing snap-fastening has taken place properly, the entire spring clip is shifted to a position that is visibly distinct for ease of checking and that is also locked such that uncoupling can be performed only by means of a special tool for splaying the branches apart.

REFERENCES:
patent: 3314696 (1967-04-01), Ferguson et al.
patent: 3403930 (1968-10-01), Bernier
patent: 5169178 (1992-12-01), Hunzinger
patent: 5209523 (1993-05-01), Godeaw
patent: 5219185 (1993-06-01), Oddenino

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