Hollow wall anchor with enhanced holding strength

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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F16B 13/04 (2006.01) B29D 99/00 (2010.01) F16B 13/08 (2006.01)

Patent

CA 2064557

A plastic hollow wall anchor having folding arms (11, 12) for insertion within a limited diameter aperture in a substrate such as a wall (30). The arms, adjacent their overlapping attachment areas, are configured to provide a "sharp knife edge" intersection (25 a, b), whereby a spacing between the atteched arms, during folding and aperture insertion, is substantially eliminated. The load bearing arms (11, 12) are concomitantly thickened and thereby strengthened within the limited dimension afforded by the aperture. Alternatively, the overall dimensions of the anchor are reduced, while maintaining the load bearing arm dimensions, thereby enabling the use of a smaller diameter for the insertion aperture without decrease in anchor holding strength.

Patte de scellement en plastique pour mur creux, présentant des bras pliants (11, 12) destinés à une insertion dans une ouverture de diamètre limité, située dans un substrat tel qu'un mur (30). Les bras situés à proximité de leurs zones de fixation se chevauchant sont configurés pour former une intersection à "fil de couteau tranchant" (25 a, b), de sorte qu'un espace situé entre les bras fixés est éliminé pendant le pliage et l'insertion dans l'ouverture. Les bras (11, 12) portant la charge sont épaissis de manière concomitante et ainsi renforcés dans la dimension limitée permise par l'ouverture. Selon un autre mode de réalisation, les dimensions globales de la patte sont réduites, tout en maintenant les dimensions des bras portant la charge, permettant ainsi d'utiliser un diamètre plus faible pour l'ouverture d'insertion, sans diminuer la résistance de maintien de la patte de scellement.

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