| 摘要 |
The present magnetic closure device has one or more holding members and one or more closure members, each with a surface configuration providing an increased frictional force, when two matching surface configurations cooperate. One member of a pair forming a closure device is a permanent magnet of so-called hard magnetic material, while the other member of a pair is a magnetic armature made of ferromagnetically soft, magnetizable material. The increased frictional force and the magnetic force combine to provide an effective closure device for articles of non-magnetic material, such as leather goods, textiles, and synthetic materials. The two members have a square or rectangular configuration and are corrugated whereby both members have the same configuration and the permanent magnet has poles of one polarity extending along the entire length of a ridge in the corrugation, and poles of the opposite polarity extending along the entire length of the valleys adjacent to a ridge. This type of closure device has greatly improved holding characteristics.
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