To provide a coupling pipe joint capable of connecting a pipe with standard fastening force.
This coupling pipe joint 1 is provided with a joint body 2 having a C shaped cross section and elastically deformable along the circumferential direction to which steel pipes 10a and 10b are inserted through axial both ends, a pair of lock members 3a and 3b attached on the axial both ends of the joint body 2, a packing 4 attached between the lock members 3a and 3b, a fastening member 5 including a rod nut 51 attached to supporting parts 22a and 22b of the joint body 2 and a bolt 53 screwed into a rod washer 52 and the rod nut 51, and spacer members 6a and 6b comprising a base body part 61 regulating a space (g) between the supporting parts 22a and 22b and a deformable part 62 elastically deformable along the fastening direction of the bolt 53.
TOKU TAKASHI
NAGAMI AKIO
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