Patent ID: 6318410
Filing Date: 2001-11-20
Classification: B29C,B29L,F16L,Y10S

Abstract:
A connecting structure for connecting a tubular hose body formed by a thin cylindrical wall with a mating member in a fluidtight condition, comprising:said tubular hose body including the thin cylindrical wall having an outer surface and an inner surface extending substantially parallel to the outer surface in the tube, and extending from one end to other end;a straight end portion formed integral with said hose body at least at the one end extending straightly, and an annular groove formed on a mold-formed outer surface thereof and extending radially inwardly integral with the mold-formed outer surface at position axially spaced from a tip end, to be connected with said mating member;an connecting member including a cylindrical portion secured to the outer surface of said straight end portion coaxially therewith, an annular protrusion extending radially inwardly from an inner peripheral surface of other end of the cylindrical portion and fitted into the annular groove, a sealing groove formed on an outer peripheral surface of the one end of the cylindrical portion, a plural first engaging elements each extending radially outwardly from the outer peripheral surface of the other end of the cylindrical portion to provide a radial space between the first engaging element and the outer peripheral surface of the cylindrical portion by slot, each of said first engaging elements having a deforming portion and engaging pawl formed at a free end of the deforming portion directed radially inwardly and integrally arranged on the cylindrical portion spaced circumferentially from each other;a mating member including a tubular opened end portion having an engaging inner peripheral surface adapted to receive the cylindrical portion secured on the outer surface of said straight end portion of said hose body;a second engaging element formed at an entry portion of the opened end portion of said mating member protruded radially outwardly, said second engaging element engaging with said first element when said straight end portion of said hose body is inserted into the engaging inner peripheral surface of the opened end portion together with the cylindrical portion secured to said straight end portion; anda sealing member mounted into the sealing groove for sealing between the engaging inner peripheral surface of the opened end portion of said mating member and an engaging outer peripheral surface of the cylindrical portion inserted into the engaging inner peripheral surface of the opened end portion together with said straight end portion.