Cable, combined cable made of plastic fibers and steel wire...

D - Textiles – Paper – 07 – B

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D07B 1/02 (2006.01) D07B 1/06 (2006.01) D07B 1/16 (2006.01)

Patent

CA 2685585

The invention relates to a combined cable having a core cable made of high-strength plastic fibers present as a twisted monofilament bundle (1) or a plurality of twisted monofilament bundles (6), and having an external layer (2, 7) of steel wire strands (4, 5), characterized in that the monofilament bundle or bundles (1, 6) is or are stretched to reduce the diameter and held in a cladding (2, 7), particularly braided cladding, in this state. The strain of the core cable under load is thus reduced, so that the load distribution between the steel cross-section and the plastic cross-section of the cable is improved. In the same sense, in reverse, in order to have the strain behavior of the strand layer approach that of the core cable, the cable has an intermediate layer (3) made of an elastic plastic, in which the steel wire strands are pressed at a distance from each other, such that the external layer stretches under load and contracts radially.

L'invention concerne un câble composite comportant un fil central en fibres synthétiques de haute résistance, qui forment un faisceau unifilaire torsadé ou une pluralité de faisceaux unifilaires torsadés, et une couche externe en torons en fil d'acier. L'invention est caractérisée en ce que le ou les faisceaux unifilaires sont tendus, avec réduction de leur diamètre, et maintenus dans cet état par une gaine qui est notamment tressée. Ainsi, l'extension du fil central sous charge est diminuée, ce qui améliore la répartition de la charge entre la section transversale d'acier et la section transversale de plastique du fil. Dans le même ordre d'idée, l'invention vise à l'inverse à rapprocher le comportement de tension de la couche en torons de celui du fil central. A cet effet, le câble comporte une couche intermédiaire en plastique élastique dans laquelle sont pressés les torons en fil d'acier à une certaine distance les uns des autres, de manière à ce que la couche externe se tende et se resserre radialement sous charge.

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