| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oar capable of reducing the air resistance generated in rowing and reducing a drop of the boat speed while the bending stiffness of the oar 14, its weight, and the position of the center of gravity are maintained. <P>SOLUTION: The oar 14 for a scull equipped with a paddle at least at one end of a tubular member is characterized by that the minimum diameter of a shaft 1 in its section perpendicularly intersecting the longitudinal direction of the oar is between 22-30 mm, including the limits, while the oar for sweep equipped with a paddle at least at one end of a tubular member is characterized by that the minimum diameter of the shaft in its section perpendicular to the longitudinal direction of the oar is between 26-37 mm, including the limits. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
