| 摘要 |
PROBLEM TO BE SOLVED: To effectively improve the stiffness of an inflatable canoe having two pieces of right and left air bodies as a basic structure of a hull. SOLUTION: Thwarts 7a, 7b are laid over both end portions of the right and left air bodies 1, thereby composing a main frame a1 of a generally rectangular shape in a plane view that becomes the basic structure of the hull. A stem frame portion a2 and a stern frame portion a3 of a generally triangle shape in a plane view are composed of the thwarts 7a, 7b, respectively, and right and left both stem/stern air chambers 2, 3, and made to function as a truss structure. Therefore, the inflatable canoe possesses sufficient stiffness corresponding to a load compressing the main frame 1a in the width direction, a load twisting and deforming a frame of the main frame a1 keeping horizontal, and a load deforming the main frame of a rectangular shape in a plane view to a parallelogram.
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