| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain lightening of weight in a total body by forming a connection part by an aluminum alloy-made tube and a rubber hose. SOLUTION: In a place of a tip end part of an aluminum alloy-made tube 1, a circumferential bead 11, 11' is provided, also a place of this tip end part is inserted in a flexible hose 2 formed by a rubber hose or the like, from this outside, a clamp 5 is used, the hose is tightened. In the vicinity of an opening end face 21 of the flexible hose 2, in a peripheral part of the aluminum alloy- made tube 1, a coating part 3 consisting of non-metal material of thermoplastic synthetic resin material or the like is provided. In this way, even when a water drop is provided around the opening end face 21, by action of the coating part 3, in a place of the aluminum alloy-made tube 1, galvanic corrosion is prevented from being generated. Infiltration of water from an end part of the flexible hose 2 is also eliminated.</p> |
