| 摘要 |
<p>A monitor actuating device and a releasable, reusable fastener therefor is provided. The monitor actuating device is designed for attachment to a monitored article and for release therefrom only by the use of a specially designed tool. The actuating device includes a pin member, such as a headed tack or the like, extending therefrom and/or therethrough, which is designed to pierce the monitored article, such as an article of clothing or the like. The reusable fastener is selectively attachable to the free end of the pin member to capture the monitored article and/or the monitor actuating device on the pin and to prevent removal of the monitored article and/or the monitor actuating device for the pin. The reusable fastener is designed for release from the pin only upon the use of a special tool to prevent, or at least render more difficult, the unauthorized removal of the monitor actuating device from the monitored article. The fastener includes a body, preferably plastic, in which a resilient spring steel clip is mounted. The body defines a pin receiving bore and the clip includes a resilient cantilever mounted tongue in acute angular relation to a plane normal to the axis of the bore. The tongue includes an aperture sized to receive the pin which, in the nondeformed position of the tongue, is in nonregistering partial alignment with the bore and has a projection on a plane normal to the axis of the bore which has at least one dimension smaller than the diameter of the pin. The aperture will register with the bore and have a projection on a plane normal to the axis of the bore substantially equal to or greater than the diameter of the pin when the tongue is resiliently deformed to be generally normal to the axis of the bore. The body includes an axially movable portion for resiliently urging said tongue towards a normal to the axis of the bore position.</p> |
