Improved masonry anchor device

Details Improved masonry anchor device Improved masonry anchor device

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 35/04 (2006.01) F16B 25/00 (2006.01) F16B 39/30 (2006.01)

Patent

CA 2410727

An improved anchor device or fastening member which is particularly suited for use in the attachment of various fixtures and equipment to masonry, concrete, and other hard and/or friable substrates includes a head (22) and a shank (24) depending therefrom. The shank has a first threaded portion (28) having a predetermined thread angle and a predetermined hardness, and a second threaded portion (30) extends from the first threaded portion. The thread angle of the first threaded portion is different than the thread angle of the second threaded portion. In addition, the hardness of the first threaded portion is softer than the hardness of the second threaded portion. This provided for a more ductile anchorage when the fastening member is engaged with the substrate.

Cette invention concerne un dispositif d'ancrage ou un élément d'ancrage amélioré qui convient tout particulièrement pour la fixation de divers supports et équipements sur des ouvrages de maçonnerie, sur du béton et autres substrats durs et/ou friables. Ce dispositif comprend une tête (22) auquel est rattachée une tige (24). Cette tige présente une première partie filetée (28) avec un angle de filet déterminé et une dureté déterminée, et une seconde partie filetée (30) partant de la première partie filetée. L'angle du filet de la première partie filetée est différent de celui de la seconde partie filetée. De plus, la première partie filetée est plus dure que la seconde. Il en résulte un ancrage plus ductile lorsque l'élément de fixation est engagé dans le substrat.

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