Threaded ceiling hook with anti-rotation washer

Details Threaded ceiling hook with anti-rotation washer Threaded ceiling hook with anti-rotation washer

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 39/24 (2006.01) E04D 3/36 (2006.01) F16B 39/32 (2006.01)

Patent

CA 2385885

A ceiling hook (H) comprises a fastener (F) for an-choring in a support structure, and a locking ring in the form of an anti-rotation washer (W). The washer (W) includes anchoring teeth (34) for stationarily mounting the washer (W) to the ceiling. The hook member (12) and the washer (W) comprise co-operat-ing locking ratchet elements (22, 28) for locking the fastener (F) to the washer (W) and thus preventing the fastener (F) from loosening from the ceiling. The washer (W) defines at a central opening (30) thereof at least one notch (32) with the fastener (F) defining at least one tab with (26), the notch (32) being slidable through the tab (26) for mounting the washer (W) to the fastener (F) and then allowing it to rotate between the tab (26) and the hook member (12), whereby the washer (W) is prevented from being removed from the fastener (F) unless the tab (26) and notch (32) are aligned.

L'invention porte sur un crochet (H) pour plafond comportant une fixation (F) se vissant dans une structure support, et un anneau de verrouillage en forme de rondelle (W) anti-rotation. La rondelle (W) est munie de dents d'ancrage (34) la rendant solidaire du plafond. Le crochet (12) et la rondelle (W) sont respectivement munis d'éléments (22,28) coopérant pour former un cliquet verrouillant la fixation (F) sur la rondelle (W) et l'empêchant de se desserrer. La rondelle (W) présente sur son ouverture centrale (30) au moins une encoche (32) et la fixation (F), au moins un ergot (26). L'encoche (32) peut coulisser sous l'ergot (26) pour permettre de fixer la rondelle (W) à la fixation (F) et tourner entre l'ergot (26) et le crochet (12). Ainsi, la rondelle (W) ne peut être dégagée de l'ergot que si l'ergot (26) et l'encoche (32) sont alignés.

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