| 摘要 |
A closure for connecting a first and a second free end of a band such as a watch strap that in use is maintained in tension by hoop stresses imposed on the band by the banded object, the closure including a first clasp element having a first hook member and a second, oppositely-directed and shorter hook member, and a separable second clasp element having first and second hook-engaging members for slidably and releasably engaging said hook members such that the engagement of both hook members with their respective hook-engaging members is possible only by first engaging the first hook member with the corresponding hook-engaging member, sliding the first hook-engaging member deep into the throat of the first hook member, then engaging the second hook member with the second hook-receiving member while partially disengaging the first hook-engaging member from the first hook member, wherein said opposing tensions acting through the first and second clasp elements maintain complete engagement of the second hook while the partial engagement of the first hook maintains the first and second elements in dose alignment.
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