Composite railway sleeper
AssigneeGreenrail Group S.R.L.
InventorGiovanni Maria De Lisi
Life of this patent
Estimating the term…
Abstract
A composite railway sleeper (1; 50; 100) comprising an outer coating shell (2; 51; 101) made of composite plastic material and a shaped structural core (3; 52; 102), made of a material comprising at least concrete contained within said outer coating shell (2; 51; 510; 101), wherein said outer coating shell (2; 51; 510; 101) presents in the upper outer face (2a; 51a; 101a) two distinct and opposite groups of grooves (4; 53) suitable to receive the angular guide plates (G) belonging to pre-assembled elastic type fastening systems (64) for the connection of two respective rails (R) with said railway sleeper (1; 50; 100).
Claims14
A composite railway sleeper comprising:
- an outer coating shell made of composite plastic material;
- and
- a shaped structural core, made of a material comprising at least concrete contained within said outer coating shell,
- characterized in that an upper outer face of said outer coating shell comprises two distinct and opposite groups of grooves suitable to receive the angular guide plates belonging to pre-assembled elastic fastening systems for connection of two respective rails with said railway sleeper, wherein the material of said shaped structural core further comprises steel, in a shape of outlined stiffening engagements, embedded in said concrete, and of a folded containment and support sheet welded to said outlined stiffening engagements, further comprising a metallic reinforcement plate stably coupled above said shaped structural core and contained inside said outer coating shell, wherein said metallic reinforcement plate comprises a plurality of through slots adapted to allow passage of said concrete injected into said folded containment and support sheet.
Railway track comprising:
- a pair of rails parallel and spaced apart from each other by a prefixed gauge;
- a plurality of composite railway sleepers, predominantly located between said rails being consecutive and spaced apart from each other in a linear direction defined by said rails and suitable to be placed close a foundation bed, each of said composite railway sleepers including:
- an outer coating shell made of composite plastic material;
- a shaped structural core, made of a material comprising at least concrete contained within said outer coating shell;
- pre-assembled elastic fastening systems which connect each of said rails with said railway sleeper,
- characterized in that said outer coating shell presents in an upper outer face two distinct and opposite groups of grooves which receive angular guide plates of said pre-assembled elastic fastening systems, wherein the material of said shaped structural core further comprises steel, in a shape of outlined stiffening engagements, embedded in said concrete, and of a folded containment and support sheet welded to said outlined stiffening engagements, further comprising a metallic reinforcement plate stably coupled above said shaped structural core and contained inside said outer coating shell, wherein said metallic reinforcement plate comprises a plurality of through slots adapted to allow passage of said concrete injected into said folded containment and support sheet.
Dependencies are inferred from the claim text.