| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a metal flexible tube which facilitate control of flange fastening force, while preventing occurrence of a crack in a gasket, and to provide a lock ring for the same. <P>SOLUTION: An end of a bellows 4 is crushed in the bellows center axial direction to form a flange 6. A split ring 7 is disposed on an outer peripheral side of the bellows 4. The split ring 7 is locked with the flange 6 from a central side in the bellows center axial direction. A recess 12 is formed in the outer surface of the split ring 7 in the bellows center axial direction. A swelling of the flange 6 in the thickness direction of the peripheral edge part thereof is housed in the recess 12 to prevent protrusion of the peripheral edge of the flange 6. The gasket 5 is disposed in the outer surface of the flange 6 in the bellows center axial direction. Flanges 10 to be respectively fastened to other tubes 8 and 9 by bolts are locked with the split ring 7 so as to connect the metal flexible tube 1 to the other tubes 8 and 9. The gasket 5 is thereby prevented form being pinched excessively strong only by the peripheral edge of the flange 6. <P>COPYRIGHT: (C)2012,JPO&INPIT |
