| 摘要 |
<P>PROBLEM TO BE SOLVED: To disclose a pipe joint enabling more accurate visual confirmation that a water flow pipe is connected with a sufficient insertion amount. <P>SOLUTION: The pipe joint comprises: a joint main body in which a collar part having an inner diameter into which the water flow pipe can be inserted, is coaxially provided to the outer periphery of a water flow sleeve which can be water-tightly inserted into the water flow pipe, and a bottomed annular groove is formed between the water flow pipe and the water flow sleeve, and in which the water flow pipe is connected in a state of a pipe end being inserted in the annular groove; a visible window provided in a portion of the collar part to reach the annular groove and penetrating the collar part in the radial direction; and an indicator stored in the annular groove to be visible through the visible window and which is compressively deformable toward the bottom side of the annular groove by pipe end pressure attachment for connection of the water flow pipe. The indicator may be molded from a material having plasticity in which compressive deformation may remain even after release of the pipe end pressure attachment. Further, the indicator may be molded of a material having electric insulation such as foamed polyethylene. <P>COPYRIGHT: (C)2009,JPO&INPIT |
