| 摘要 |
PROBLEM TO BE SOLVED: To efficiently and reliably execute corrosion prevention with respect to a cut end of metal tube by preventing part of a rubber adhesive provided between the end surface cover part of a covering cover and a surface opposed to the end surface of a metal tube from being considerably protruded into the space inside the tube through a pressing operation for fitting and mounting the covering cover. SOLUTION: A covering cover 7 equipped with at least an end surface cover part 7A covering the end surface 2a of a metal part 2A in a metal tube 2 and an outside cylindrical cover part 7B covering the outer peripheral surface of the metal tube 2 are fitted and mounted to the end of the metal tube 2 containing a corrosion preventive covering layer 2B in an inner peripheral surface from a tube axial direction. A rubber adhesive 8 is provided between the end surface cover part 7A of the covering cover 7 and a surface opposed to the end surface 2a of the metal part 2A while covering the end surface 2a of the metal part 2A. An inside cylindrical cover part 7C moving and guiding part of rubber adhesive 8 toward the end surface side of the corrosion preventive covering layer 2B according to the pressing operation for fitting and mounting the covering cover 7 is protrusively formed at the inner edge of the end surface cover part 7A in the tube axial direction. COPYRIGHT: (C)2011,JPO&INPIT |
