| 摘要 |
PURPOSE:To prevent concentration of stress from occurring in a bottom cowling made of a synthetic resin or the like, by a method wherein a metallic stopper is fitted to a bottom cowling through a metallic support, and a top cowling is engaged with the stopper. CONSTITUTION:Both the bottom cowling 6 and the top cowling 7 are made of synthetic resins. Since the metallic stopper 8 is fitted to the bottom cowling 6 through the metallic support 9, a clamping force and external forces exerted on the stopper 8 are firstly transmitted to the support 9. In addition, since the support 9 is fitted to the bottom cowling 6 by a plurality of fitting bolts 11, the forces transmitted to the support 9 are transmitted by the bottom cowling 6 through the individual fitting bolts 11. Accordingly, the force transmitted to the bottom cowling 6 through each of the bolts 11 is dispersed, preventing heavy concentration of stress from occurring in the bottom cowling 6. |
