| 摘要 |
PROBLEM TO BE SOLVED: To provide an eraser which is easy in manufacture and free from being scattered in the air of low-cost powder by canceling that the eraser does not scatter powder of a chalk or a marker in the air, and is difficult in being manufactured and high priced. SOLUTION: The eraser is manufactured by being divided into a wiping off part and a supporting part, a donut shaped hollow support cloth is used for a wiping off part, and the support part makes it possible to fold by sliding contact and folds both parts to insert and assemble. Since an assembling is completed by bending the both parts of a passage wiping off part and the support part and the assembling is completed by inserting to be restored to the origin, the assembling is very simple. Furthermore, since an ultra thin typed eraser having a tension and a slow curve of the wiping off part as an ideal on a bottom part, the eraser which is free from being scattered of the powder in the air can be easily completed. COPYRIGHT: (C)2006,JPO&NCIPI
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