| 摘要 |
Improvements in swivel fastening devices for removably connecting two objects together in such manner that, once the connection is made, the objects may swivel with respect to one another to a considerable degree without detachment from one another; a swivel attachment involving a belt carried element which is removably engageable with a case carrying element, the case carrying element engageable and disengageable with the belt carrying element only when the case is in a vertical, inverted position, all other engaged positions retaining a solid interconnection between the belt element and the case element; a case element having an enlarged headed post and two spaced apart pins thereon engageable with two channels in a belt carried element operable to provide a swivel attachment effective over a large arcuate angle.
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