| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously achieve the necessary overall strength and a hose retaining function while a structure is simple. SOLUTION: An inner cylindrical portion 2b of a sleeve 2 in which a hose connecting end portion H1 is inserted, is fitted/inserted and superposed along a tip-side outer peripheral face 1a of a nipple 1, to reinforce the superposed part S in comparison with the other part, further a basic end side of the nipple 1 adjacent to the superposed part S is expanded, and the sleeve 2 is retained so as not to retract the sleeve 2 to the basic end side of the nipple 1, to prevent retraction of a hose H with the sleeve 2 even when the force in the drawing-out direction acts on the hose H, and further the reinforced superposed part S is not deformed even when the hose H is tightly fastened by fastening an outer peripheral face H4 of the hose connecting end portion H1 inward, and retaining its inner peripheral face H2 in a state of being closely kept into pressing contact with the superposed part S of the tip-side outer peripheral face 1a of the nipple 1 and the inner cylindrical portion 2b of the sleeve 2. COPYRIGHT: (C)2007,JPO&INPIT |
