| 摘要 |
PROBLEM TO BE SOLVED: To solve problems wherein a magnet button or the like is used in making a bag or the like but not usable as a fastener of wide form, and as to a hook-and-loop tape changeable in size, a thread tends to get entangled with the hook side of the hook-and-loop tape in the case of long-pile fabric, and a magnet sheet with an adhesive is therefore used but easy to come off, whereas in a method of opening a hole and fastening with a thread, a thread part swells and two magnet sheets do not fit closely which weakens magnetic force, furthermore because there is no mark of magnetic pole, if they are fitted in a wrong direction, two sheets repel each other and do not coincide well with each other. SOLUTION: Holes are opened in the magnet sheet, and shallow grooves are provided in thread passing parts. In this manner, the thread part does not swell, and when two sheets are joined, the surfaces are closely fitted. Three holes are connected through the grooves to form a triangle. When two magnet sheets are joined, if the directions of the triangles are the same, the magnetic poles attract each other and two sheets coincide well with each other. COPYRIGHT: (C)2011,JPO&INPIT
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