Patent ID: 6722702
Filing Date: 2004-04-20
Classification: F16L

Abstract:
A coupler provided with a body member to which tubes are coupled on the left and right respectively, a cap member that is high-frequency heat-sealed monolithically to both ends of the body member, and a collator that is inserted in the cap member and tightens the surface of the tube so as to prevent the tube from being broken away, the coupler comprising:a coupling member having a plurality of guide protrusions that are formed at predetermined lengths and regularly spaced intervals and extended along the outer rim of said cap member and stop protuberance that is bent-formed at one end portion of the guide protrusions; and a guard cap that is coupled to said coupling member so as to prevent the collator and the tube from being separated from the body member by external force and foreign matter from infiltrating into said tube from outside.