To firmly keep the fastening force added to exhaust pipes, and to improve the connection force of the exhaust pipes without lowering the fastening force even when the exhaust pipes are repeatedly disconnected.
In this an exhaust pipe joint structure for connecting the first exhaust pipe and a second exhaust pipe, a swelling part 1B radially projected outward is mounted near an end part 1A of the first exhaust pipe 1, divided flanges 10 are circularly mounted on a side face 1C at the end side opposite to the swelling part 1B of the first exhaust pipe 1, a receiving flange 20 is mounted on an end part 2A of the second exhaust pipe 2, the divided flanges 10 and the receiving flange 20 are fastened by a fastening bolt 30 to connect the first exhaust pipe 1 and the second exhaust pipe 2.
AKIYAMA HIROYUKI
SAITO ATSUSHI
