| 简介 |
PROBLEM TO BE SOLVED : brush wind is capable of drawing a clear character, good touch pen to easily draw Magnetophoresis display member brush. SOLUTION : the brush shaft 1 has an elastic hair brush-like tip 2, a rubber or like elastic hair brush bristles 2 binder 22 in plastic or the like having a large coercive force of the magnet or the like rare earth magnet powder 21 are dispersed, and around the annular groove 4 in the vicinity of the origin is grafted. In addition to the elastic hair brush-like ear 2, having an annular groove 4 of a magnetic metal member 3 is wound a wire. Selected drawing : fig. 2 |
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