Patent ID: 6382680
Filing Date: 2002-05-07
Classification: F16L,Y10S

Abstract:
A coupler apparatus for coupling hoses to each other, a hose to some other device, or other members to each other, the apparatus comprising:a pair of coupler bodies; and a plurality of engaging projections disposed at a front end portion of said coupler body in a circumferential direction and projected in an axial direction, and engaging recesses formed thereamong, each projection having two side faces which are directed in a radial direction through or near a center axis of the coupler body, wherein said engaging projections and said engaging recesses are axially engaged with the engaging projections and engaging recesses of a mating one of said coupler bodies in a complementary manner, and one side face of each of said engaging projections is provided with an engaging hook portion such that said one side face is divided into at least first and second portions which are not parallel in the radial direction, and the engaging hook portions are circumferentially engaged with the engaging hook portions of the engaging projections of the mating coupling body to restrict axial movement, whereby the pair of coupler bodies are axially engaged.