| 摘要 |
An anti-theft device, comprising at least one spool ( 2 ) made of electrically insulating material that is mounted rotatably on a support ( 3 ); a cable-like element (4 ) that can be wound onto, and unwound from, the spool or a respective spool and has a free end ( 5 ) that can be detachably anchored to an item ( 6 ) to be restrained, elastic loading means for the or each spool in order to ensure the automatic tensioning and rewinding of said cable-like element on its own spool, detachable engagement means for an item to be restrained which are located at the free end of said cable-like element or of each cable-like element and are suitable to open or close an electrical contact, and a control unit ( 8 ) that is meant to act in response to the opening-closing of the electrical contact.
|
