| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resin pipe joint providing a high coming-off prevention function and a sealing function over the overall length of a chuck ring. <P>SOLUTION: The resin pipe joint comprises: an inner core press fitted to a pipe end of a resin pipe so as to expand the diameter and having a tapered outer face; an outer sleeve having a male screw on the outer side and an opening side serving as a drawn port of a tapered shape reverse to that of the inner core; the chuck ring in which an outer face tapered part fitted to the drawn port so as to be watertight and to be drawn by reducing the outer diameter toward the front end is formed and a biting tooth is protruded in part of the peripheral face on a rear end part of an inner hole to which the resin pipe is inserted; and a box nut having an inner flange to which the resin pipe is inserted, including the chuck ring, and screwed to the male screw of the outer sleeve. In the chuck ring, a slit is formed in the axial direction on the rear end side. Preferably, the box nut is inclined so that the inner face of the inner flange rides on the rear end side of the chuck ring. <P>COPYRIGHT: (C)2009,JPO&INPIT |
