| 摘要 |
PROBLEM TO BE SOLVED: To increase the rigidity of a patch member, because the rigidity of a tank stay is difficult to be increased due to the necessity of forming the patch member to be about as thick as the inner wall surface of a fuel tank while the tank stay for engaging the fuel tank with a main frame is fitted to the inner wall surface of the fuel tank via the patch member.SOLUTION: A center groove 30 is provided in the bottom part of a fuel tank 26, a patch member 37 about as thick as an inner wall 32 is welded to the wall facing the center groove, and a tank stay 33 is welded thereon. The patch member 37 has beads 41 and 42 provided along the surroundings of the tank stay 33, thereby increasing the rigidity of the patch member 37, and the tank stay 33 is welded along the beads 41 and 42.SELECTED DRAWING: Figure 5 |
