Anchor and anchor nut thereof

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

Patent

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Details

F16B 13/14 (2006.01) F16B 31/02 (2006.01)

Patent

CA 2680195

An anchor has an anchor rod (3) which must be rotated during the setting of the anchor, an anchor plate (4), and an anchor nut (1). The screw thread in the anchor nut (1) matches the screw thread of the anchor rod (3) only for part of the threaded bore (13). Thus the anchor nut (1) can be screwed only a little further on the anchor rod (3) and can be used to rotate said rod during the setting of the anchor up to a specific torque. As soon as the anchor rod (3) fits tightly in the bore hole by means of cementing, mortar, or expansion, the anchor rod (3) forms a continuous thread in the threaded bore (13) when the anchor nut (1) is rotated relative to the anchor rod (3), such that the anchor nut (1) can be screwed finally so far down on the anchor rod (3) that said anchor nut fixes the anchor plate (4) in the final position on the substrate (7).

Boulon d'ancrage qui possède une tige d'ancrage (3) devant être tournée lors de la pose du boulon d'ancrage, une plaque (4) et un écrou d'ancrage (1). Le filetage ménagé dans l'écrou (1) n'est adapté au filetage de la tige d'ancrage (3) que sur une partie du trou fileté (13). Ainsi, l'écrou (1) ne peut être vissé qu'à raison d'une petite distance supplémentaire sur la tige d'ancrage (3) et utilisé jusqu'à un couple de rotation déterminé pour tourner la tige d'ancrage lors de la pose du boulon d'ancrage. Aussitôt que la tige d'ancrage (3) est fixée dans le trou de forage par de la colle, du mortier ou par expansion, la tige d'ancrage (3) forme dans le trou fileté (13) un filet traversant lorsque l'écrou (1) est tourné par rapport à la tige d'ancrage (3), si bien que l'écrou (1) peut être finalement vissé sur la tige d'ancrage (3) jusqu'à ce qu'il fixe la plaque d'ancrage (4) dans sa position définitive sur le support (7).

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