Anti-theft device particularly for point of sale displays
OwnerFerruccio Bonatoinventor
Life of this patent
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Abstract
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.
Claims53
An anti-theft device;
- comprising at least one spool made of electrically insulating material that is mounted rotatably on a support;
- at least one cable that can be wound onto, and unwound from, said spool or a respective spool and has a free end that can be detachably anchored to an item to be restrained, elastic loading means for the or each spool in order to ensure the automatic tensioning and rewinding of said cable on its own spool, detachable engagement means for an item to be restrained which is located at said free end of said cable or of each cable and is suitable to open or close an electrical contact, and a control unit that is meant to act in response to the opening-closing of said electrical contact, wherein said detachable engagement means comprises a clamping element having two clamping jaws which are mutually articulated in order to pass from an engagement condition, in which said portion of said cable can move with respect to a first end, to a restraining condition, in which said portion of said cable is in a locking position and said electrical contact is closed.
An anti-theft device, comprising at least one flexible cable provided with two conducting wires that are connected, at a first end, to means for detachable engagement with at least one item to be restrained and are suitable to open or close an electrical contact between said two conducting wires and are connected, at their other end, to a control unit that is meant to act in response to the opening/closure of said electrical contact, a removable engagement means comprising a clamping element for locking, with respect to said first end, a portion of said cable in order to form a restraining loop, wherein said clamping element comprises two clamping jaws which are mutually articulated in order to pass from an engagement condition, in which said portion of said cable can move with respect to said first end, to a restraining condition, in which said portion of said cable is in a locking position and said electrical contact is closed.
The anti-theft device according to 30, wherein said lamina comprises, at the face that is meant to face said first jaw, a stud for engaging a button, formed on said second jaw, for closing said electrical contact.
The anti-theft device according to 26, wherein an adhesive tab is associated with said clamping element.
The device according to 36, wherein said second jaw comprises, at the surface that is meant to engage said first jaw, a slot that is meant, in the restraining condition, to accommodate said portion of said cable.
An anti-theft device, comprising at least one spool made of electrically insulating material that is mounted rotatably on a support;
- at least one cable having two conductors that can be wound onto, and unwound from, said spool or a respective spool and has a free end that can be detachably anchored to an item to be restrained, elastic loading means for the or each spool in order to ensure the automatic tensioning and rewinding of said cable on its own spool, detachable engagement means for an item to be restrained which is located at said free end of said cable or of each cable and is suitable to open or close an electrical contact, and a control unit that is meant to act in response to the opening-closing of said electrical contact, wherein said detachable engagement means comprises an elastically loaded telescopic tube, which has a transverse seat that acts as a socket for accommodating a plug and is electrically connected to a conductor of said cable, and a plug that can be inserted in said socket, is electrically connected to the other conductor of said cable, and has a head for abutment against the passage of said telescopic tube.
Dependencies are inferred from the claim text.