| 摘要 |
THE AIR-CONDITIONING DRAIN HOSE COMPRISES AN INNER PIPE 1 WHICH IS MADE OF POLYOLEFIN RESIN AND HAS NO SEAM, A CYLINDRICAL HEAT INSULATING MATERIAL 2 MADE OF FOAM SYNTHETIC RESIN WHICH COVERS AN OUTER SURFACE OF THE INNER PIPE 1, AND A SLEEVE 3 MADE OF FLEXIBLE MATERIAL WHICH IS COUPLED TO A PIPE END OF THE INNER PIPE 1. IN THIS HOSE, THE SLEEVE 3 COMPRISES A DRUM PORTION 30 OF WHICH AN INNER SURFACE 31 HAS THE SUBSTANTIALLY SAME DIAMETER AS AN OUTER DIAMETER OF THE DRAIN OUTLET, A FLANGE PORTION 33 PROTRUDING OUTWARD ON ONE END SIDE OF THE DRUM PORTION, AND AN INCLINED PROTRUSION 35 THAT PROTRUDES INWARD ON THE OTHER SIDE OF THE DRUM PORTION AND HAS A DIAMETER THAT BECOMES SMALLER ON THE OUTER END SIDE; SAID INNER PIPE 1 COMPRISES A CYLINDRICAL PORTION 13 FOR ACCOMMODATING AN OUTER SURFACE 32 OF SAID SLEEVE 3, AN ANNULAR PROTRUSION 15 FOR ACCOMMODATING SAID FLANGE PORTION 33 ON AN OPENING END 14 SIDE THEREOF, AND ANOTHER PROTRUSION 17 WHICH PROTRUDES OUTWARD ON THE OTHER END SIDE OF SAID CYLINDRICAL PORTION 13; THE WIDTH OF SAID ANNULAR PROTRUSION 15 IN THE PIPE AXIAL DIRECTION IS FORMED LARGER THAN THE WIDTH OF SAID FLANGE PORTION 33 IN THE CYLINDER AXIAL DIRECTION; AND SAID ANOTHER PROTRUSION 17 IS FORMED AT A POSITION CORRESPONDING TO THE POSITION WHERE THE IHCLINED PROTRUSION 35 OF SAID SLEEVE 3 IS FORMED.
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