Roller unit for laying cables in a plant for laying cables and plant for laying cables comprising the roller unit
US11909184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2019 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Mar 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Roller unit for laying cables (11, 12, 13), comprising a frame (23, 23′) where at least one pair of sliders (25, 25′) are positioned aligned parallel to a laying direction (S1, S2) of the cables (11, 12, 13) and each provided with at least one pair of wheels (28, 28a, 28b) supporting a cable (11, 12, 13) to be laid; said sliders (25, 25′) are hinged to said frame (23, 23′) and rotatable around respective axes of rotation (A, A′) so as to vary the inclination thereof with respect to said frame (23, 23′) and therefore to vary the radius of curvature of the cable (11, 12, 13) supported; said wheels (28, 28a, 28b) are provided with an annular groove (32) to support the cables, delimited by containing wings (33) and able to define a contact and sliding surface of at least one of said cables (11, 12, 13), wherein at least said annular support groove (32) is made of or covered by a technoplastic material with polyamide (PA) base reinforced with glass fiber, if the supported cable is a conductor (11, 13), or by means of a metal material of great hardness, in particular pearlitic-ferritic lamellar cast iron GJL250, if the supported cable is a towing cable (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.