| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that a sheet such as a leisure sheet used outdoors is easily turned up by wind, and in the case of fastening it with pins, carrying and storing of the pins are troublesome. SOLUTION: This sheet can be easily and quickly fixed to the ground by equipping foldable pins in the four corners of the sheet. This constitution also save a trouble compared with a case where the pins are separately handled from the sheet. When being stored and carried, the pins 3 are fixedly stored in pin holders 2 in a compact state by fitting small projections 4 in grooves 5, thus getting non-obstructive. COPYRIGHT: (C)2006,JPO&NCIPI
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