Theft deterrent device including a spring washer

E - Fixed Constructions – 05 – B

Patent

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Details

E05B 73/00 (2006.01) G09F 3/12 (2006.01) E05B 15/04 (2006.01) E05B 47/00 (2006.01)

Patent

CA 2733019

A device to protect an article (24) from theft is disclosed. The device includes a pointed pin member (14) to enable attachment of the device to the article to be protected from theft. A housing (17) disposed within the device includes a floor and a wall (33) tapering towards a confining end (34). The housing includes coaxial openings for insertably receiving the pin member. A ball clutch mechanism is located within the housing and includes a plurality of balls (26). As the balls are urged towards the confining end of the housing, they wedge between the tapering wall and the pin member to apply increasing radial pressure against the pin member to prevent it from being withdrawn from the device. The floor includes a member (42) which deflects downwardly upon insertion of the pin member into the housing to apply a radial force against the pin member to frictionally engage it within the device.

L'invention porte sur un dispositif pour protéger un article (24) du vol. Le dispositif comprend un élément broche pointu (14) pour permettre une fixation du dispositif à l'article devant être protégé du vol. Un boîtier (17) disposé à l'intérieur du dispositif comprend un fond et une paroi (33) s'effilant en direction d'une extrémité de confinement (34). Le boîtier comprend des ouvertures coaxiales pour une réception de l'élément broche par introduction de celui-ci. Un mécanisme d'embrayage à billes est situé à l'intérieur du boîtier et comprend une pluralité de billes (26). Lorsque les billes sont poussées en direction de l'extrémité de confinement du boîtier, elles se coincent entre la paroi effilée et l'élément broche pour appliquer une pression radiale croissante contre l'élément broche pour l'empêcher d'être retiré du dispositif. Le fond comprend un élément (42) qui se fléchit vers le bas lors de l'introduction de l'élément broche dans le boîtier pour appliquer une force radiale contre l'élément broche pour venir en prise par frottement avec celui-ci à l'intérieur du dispositif.

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