To provide a tube for repair, in which a buried pipe buried in the ground can be efficiently and wholly repaired in extremely short time without excavating.
Joint pieces 3a and 3b having hook parts 5a and 5b at both circumferential end surfaces of a circular arc-shaped split ring 2 are provided as well as engagement grooves 4a and 4b. The hook parts 5a and 5b are engaged with the engagement grooves 4a and 4b to combine a plurality of split rings 2 in a circular form. The split rings 2 are coupled to each other by wedges 11 placed between the hook parts 5a and 5b to form a ring 20. An engagement hole 8 is formed in one axial end surface of the partial ring 2, an engagement claw 9 is provided at the other axial end surface, and the engagement claws 9 are engaged with the engagement holes 8 to axially connect a plurality of rings 20 to each other. The tube for repair can thus be assembled in the buried pipe.
Higashio Masahiro
Torii Kazuhisa