E - Fixed Constructions – 01 – B
Patent
E - Fixed Constructions
01
B
E01B 9/40 (2006.01) E01B 29/42 (2006.01) F16B 5/04 (2006.01) F16B 17/00 (2006.01) F16B 19/06 (2006.01) F16B 37/06 (2006.01)
Patent
CA 2499022
In a method of attaching a steel railway rail support (baseplate or sleeper) (2) to a ductile iron rail clip anchoring device (1) a boss (11), extending from the bottom of a body (10) of the anchoring device (1), is inserted into a hole (20) passing through the support (2) at a location on its surface (2a) at which the anchoring device (1) is to be attached until the anchoring device body (10) abuts the support surface (2a). The steel around the hole (20) in a region on the support surface (2b) opposite to that on which the. anchoring device body (10) is located is compressed while the anchoring device (1) is held in place, so that the compressed steel flows plastically against the boss (11) within the hole (12), until the force applied to the boss (11) brings about elongation thereof, whereby the boss (11) undergoes an elastic set which clamps the boss (11) to the support (2).
L'invention concerne un procédé de fixation d'un support de rail de voie ferrée en acier (tel qu'une plaque de base ou une traverse) (2) à un dispositif (1) d'ancrage d'une attache de rail en fer ductile. Selon ce procédé, un bossage (11) s'étendant de la partie inférieure d'un corps (10) du dispositif d'ancrage (1) est inséré dans un trou (20) passant à travers le support (2) à un emplacement sur sa surface (2a) où le dispositif d'ancrage (1) doit être fixé jusqu'à ce que le corps du dispositif d'ancrage (10) aboute la surface de support (2a). L'acier qui entoure le trou (20) dans une zone située sur la surface de support (2b) à l'opposé de celle où est placé le corps du dispositif d'ancrage (10) est comprimé et le dispositif d'ancrage (1) est maintenu en place. Ainsi, l'acier comprimé s'écoule plastiquement contre le bossage (11) dans le trou (12) jusqu'à ce que la force appliquée au bossage (11) produit un allongement de celui-ci. Le bossage (11) est soumis à un ensemble élastique qui presse le bossage (11) audit support (2).
Pandrol Limited
Sim & Mcburney
LandOfFree
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