| 摘要 |
The invention relates to a lever structure of clasps such as spring ring clasps or lobster claw clasps. The clasp includes a substantially annular clasp body cut at one end to have a cut-away portion, an open/close member inserted inside the clasp body such as to slide in directions to open and close the cut-away portion, and a lever integrally formed with the open/close member such as to protrude outwards from the clasp body. The lever includes a neck portion that passes through a slit of the clasp body, and a lever body with a grip surface provided to a distal end of the neck portion such as to extend in a direction orthogonal to open/close sliding directions of the open/close member. The grip surface has a width that is set longer than a cross-section diameter of the clasp body.
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