| 摘要 |
PURPOSE: To rapidly attenuate magnetic field and distance by arranging each first magnet near a second magnet and providing it with the first region of a first magnetic pole and the second region of a second magnetic pole on the opposite side and providing each second magnet with a first region of the second magnetic pole and the second region of the first magnetic pole on the opposite side. CONSTITUTION: A plurality of same tubular separate small permanent magnets 22, 24 are arranged on a support 14, forming two proximate lines 40, 42 and are extended along a part of a length of the support 14. The first magnet 22 is provided with the first region of an S-pole, which is the first magnetic pole of a top part 30a thereof and the second region of an N-pole which is the second magnetic pole of a bottom part 30b on the opposite side of the first region, and supports the bottom part 30b on the support 14. Meanwhile, each second magnet 24 has a first region of the N-pole which is the second magnetic pole of a top part 32a and the second region of an S-pole which is the first magnetic pole of a bottom part 32b on the opposite side of the first region, and supports the bottom part 32b on the support 14. Therefore, a tool 10 can attenuate magnetic field as well as the distance. |
