Lifting cable having metallic central core and hybrid outer strands
AssigneeTrefileurope France
InventorJean-Pierre Damien
Life of this patent
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Abstract
The cable includes a substantially metallic central core (3) and outer strands (2) formed from at least one layer of metal wires (21), particularly steel wires, which are stranded over a core element (22) made from synthetic material, preferably a thermoplastic material, this being with a pitch similar to that of the strands (5,6) with which the core (3) is formed, it being possible for the latter to be entirely metallic or hybrid. These cables are intended particularly for use as a lifting cable, particularly elevator cables, or other multicable installations with transmission by means of adherence.
Claims8
A cable composed of a central core and a plurality of outer strands including metal wires, said outer strands being laid over the central core, wherein
- the outer strands are formed from at least one layer of metal wires stranded over a core element made from synthetic material;
- the central core itself is substantially metallic with respect to a cross-sectional area of said central core, and includes strands cabled over a central core member, the diameter of said central core being substantially larger than the diameter of any of the outer strands, and
- the outer strands are cabled at the same pitch as the strands of the central core and are parallel to the latter.
Dependencies are inferred from the claim text.