Screw anchor with conical head for rail attachment

Details Screw anchor with conical head for rail attachment Screw anchor with conical head for rail attachment

E - Fixed Constructions

01

B

E01B 9/18 (2006.01) F16B 13/02 (2006.01)

Patent

CA 2745510

A screw anchor for concrete attachment to a railroad tie or solid track comprises external threads (16) disposed on the exterior of the screw anchor (10) and internal threads (18) disposed inside the screw anchor (10) for force-fitted connecting to a fastening element (30), wherein the screw anchor (10) comprises two sections (12, 14) adjacent to one another in the longitudinal direction, the first section (12) having a substantially cylindrical external shape and the second section (14) having a substantially conical external shape, and wherein the second section (14) is disposed between the first section (12) and an inlet opening (26) for the fastening element (30).

L'invention concerne une cheville vissante à insérer dans une traverse de chemin de fer ou dans une voie sans ballast, comprenant, pour l'assemblage à force avec un élément de fixation (30), un filetage extérieur (16) réalisé sur l'extérieur de la cheville vissante (10) et un filetage intérieur (18) réalisé à l'intérieur de la cheville vissante (10). La cheville vissante (10) se compose de deux segments (12, 14) se prolongeant l'un l'autre dans la direction longitudinale. Le premier segment (12) possède essentiellement une forme extérieure cylindrique, et le deuxième segment (14), essentiellement une forme extérieure conique. Le deuxième segment (14) est disposé entre le premier segment (12) et une ouverture d'introduction (26) pour l'élément de fixation (30).

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