| 摘要 |
A jewelry chain having a pair of ends and a closure for releasably securing the ends together. The closure includes a male and a female component, each fixedly secured to a respective end of the chain. The male component includes a base member from which a circular disk of permanent magnetic material projects upward, a first tab and a first recess. The first tab projects outward from the base member perpendicular to the central axis adjacent a portion of the periphery of the disk, while the first recess projects outward from the base member perpendicular to the central axis adjacent a diametrically opposed portion of the disk. The female component includes a base member having a circular well of ferromagnetic material therein, a second tab, and a second recess. The second tab projects outward perpendicular to the central axis from the a portion of base member adjacent one portion of the periphery of the well while the second recess projects outward from the base member perpendicular to the central axis adjacent a diametrically opposed portion of the well. The disk of the male component is received within the well of the female component so that the components can be rotated with respect to each other to cause the first tab to enter the second recess while the second tab enters the first recess, thereby mechanically securing the components together.
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