| 摘要 |
PROBLEM TO BE SOLVED: To provide a cushion easily shaped into a triangle to have a triangular space in the central part by twisting and bending folding margin parts of a flat connected strip obtained by arranging three trapezoidal cushions. SOLUTION: In the cushion, three core pieces are arranged so that the trapezoidal parts of the adjacent pieces lock each other, a folding margin part formed of only a surface cloth is provided between the respective pieces, and all of these are sewn together from above and below the surface cloth to form one flat connected strip. The connection band is twisted at the folding margin part provided between the core pieces and bent in the same direction to form a triangle with a triangular space in the central part. The overlapping margins at both right and left ends of the strip at which the strip is overlapped, are integrated using a fastener. COPYRIGHT: (C)2010,JPO&INPIT |
