Fiber-reinforced plastic drilling anchor

Details Fiber-reinforced plastic drilling anchor Fiber-reinforced plastic drilling anchor

E - Fixed Constructions

21

D

E21D 21/00 (2006.01)

Patent

CA 2659568

The invention relates to a fiber-reinforced plastic drilling anchor (1) comprising an axial bore (2) that runs along the entire length thereof, fibers which extend in the longitudinal direction thereof, and fibers that extend at an angle to the longitudinal direction thereof. A first layer (4) of fibers that extend at an angle to the longitudinal direction of the drilling anchor (1) is surrounded by a second layer (5) of fibers extending in the longitudinal direction of the drilling anchor (1), and the second layer (5) of fibers is surrounded by a third layer (6) of fibers extending at an angle to the longitudinal direction of the drilling anchor (1). The inventive drilling anchor (1) further comprises a thread (3) which extends along the entire length thereof and is molded into at least one outer fiber layer (6, 7) of the drilling anchor (1). The invention also relates to a method for producing such a drilling anchor (1).

L'invention concerne un ancrage (1) pour forage,en plastique à fibres renforcées comprenant une âme (2) axiale s'étendant dans toute sa longueur, des fibres qui s'étendent dans le sens longitudinal dudit ancrage, et des fibres qui sont inclinées par rapport au sens longitudinal. Une première couche (4) de fibres est inclinée par rapport à l'ancrage (1) et elle est entourée d'une deuxième couche (5) de fibres s'étendant dans le sens longitudinal de l'ancrage (1). La deuxième couche (5) de fibres est entourée d'une troisième couche (6) de fibres inclinée par rapport au sens longitudinal de l'ancrage (1). L'ancrage (1) pour forage comprend, de plus, un filetage (3) qui s'étend sur toute sa longueur et qui est moulé dans au moins une des couche (6, 7) de fibres extérieure de l'ancrage (1) pour forage. L'invention concerne également un procédé de production dudit ancrage (1) pour forage.

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