| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a buoyancy body for a life vest capable of easily securing permeability in wearing the life vest. <P>SOLUTION: A buoyancy member 7 is partially mounted on a surface of a permeable sheet body 1 having a prescribed thickness so that part of the surface may appear. The sheet body 1 has vent holes on each side of its front and rear and is structured so that air may flow in an orthogonal direction to a thickness direction. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
