摘要 |
<p>A device, detectable by automatic means, is concealed within a spring-tong-like housing structure formed from plastic arms joined at one end by a concealed bayonet type locking arrangement that creates a non-mobile joint. The arms are sufficiently flexible to permit their free ends to be pressed together manually thereby engaging a tack shank carried by one arm in a clutch lock concealed in the other arm. The intermediate portions of the arms have reduced structural rigidity such that any attempt to bend the housing structure when the tag is closed will result in flexure of the intermediate portions absorbing the bending forces with reduced communication of shearing force to mating end portions of the arms.</p> |