Antitheft device

Details Antitheft device Antitheft device

G - Physics

08

B

G08B 13/22 (2006.01) E05B 73/00 (2006.01) G08B 13/14 (2006.01) G08B 13/24 (2006.01)

Patent

CA 2420809

An antitheft device comprises a tag 10 and a member 2 for attaching the tag to a commodity. The attaching member 2 comprises a button 22 and a pin 21 projecting therefrom. The tag 10 includes a housing 1 having arranged therein a clamp member 3 for clamping the pin 21 of the attaching member 2, an on-off switch 8 to be depressed by the button 22 of the attaching member 2, and a buzzer 6 operable under the control of on-off signals from the switch 8. The clamp member 3 is rotatably supported and disengageable from pin 21 when the clamp member 3 is rotated in one direction. The on-off switch 8 comprises an actuator 82 projecting outward from the housing 1, and a cylindrical guide portion 83 provided around the base end of the actuator 82 and serving as a pivot for supporting the clamp member 3 thereon. The device is adapted to reliably prevent unlawful acts without becoming large-sized.

L'invention porte sur un dispositif antivol comprenant une étiquette (10) et un élément (2) se fixant à un produit. Pour former cet élément (2), on place en saillie un axe (21) sur un bouton (22), ainsi qu'un élément de serrage (3) pour serrer l'axe (21) de l'élément (2) se fixant au produit ; un commutateur marche/arrêt (8) est actionné sous la pression du bouton (22) de l'élément (2), et un avertisseur sonore (6), commandé en fonction des signaux émanant du commutateur marche/arrêt (8), est placé dans le corps (1) de l'étiquette (10). L'élément de serrage (3) est supporté rotatif et peut être dégagé de l'axe (21) selon sa rotation dans un sens. Le commutateur marche/arrêt (8) comprend une pièce (82) faisant saillie à l'extérieur du corps (1) et une pièce de guidage cylindrique (83) entourant l'extrémité de la base de la pièce (82) et formant l'arbre de support d'un élément de serrage à ressort (3). Un acte illégal peut être ainsi évité sans augmenter la taille du dispositif.

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