| 摘要 |
PROBLEM TO BE SOLVED: To achieve both of securing of rigidity and reducing of the weight of the whole of an exhaust pipe.SOLUTION: An aggregated passage (exhaust pipe structure) 12b has a first exhaust pipe part 12d and a second exhaust pipe part 12e which form a pipe for distributing exhaust gas by being engaged with each other, and extend along a flow passage of the exhaust gas respectively. The first exhaust pipe part and the second exhaust pipe part have thickness different from each other. By combining the exhaust pipe parts (the first exhaust pipe part and the second exhaust pipe part) having the different thickness, reduction of the weight can be achieved while securing rigidity of the whole of the exhaust pipe 10 required in accordance with a vehicle.SELECTED DRAWING: Figure 3 |
