| 摘要 |
PROBLEM TO BE SOLVED: To further easily and certainly check a connecting state of a tube to a body in a pipe joint.SOLUTION: A joint mechanism 20 functioning as a pipe joint is provided with an indicator ring 48 between an end portion of a fastening cap 40 and an outer wall portion 60 of a body 12. The indicator ring 48 includes: a flat portion 50 abutting on the body 12; an inclining portion 52 formed on an outer peripheral side of the flat portion 50; and projecting portions 54a and 54b formed on an outer edge portion of the inclining portion 52. The projecting portions 54a and 54b are formed in parallel along an outer peripheral surface of a fastening cap 40, in a state before the connection of a tube 38 by the fastening cap 40. When the tube 38 is connected, an end portion of the fastening cap 40 presses the inclining portion 52 to be deformed to a generally same plane surface as the flat portion 50, and simultaneously, the projecting portion 54a and 54b project out to an outer peripheral side of the inclining portion 52 while inclining toward a direction separating from the body 12.SELECTED DRAWING: Figure 3 |
