G - Physics – 02 – B
Patent
G - Physics
02
B
61/4.6
G02B 6/44 (2006.01) G02B 6/24 (2006.01)
Patent
CA 2036969
A drawing head for ribbon type optical cables having optical fibres in ribons with respective end connectors, a central strength member and a grooved core includes a drawing member connected at one end thereof to the axial strength member of the cable and at the other end thereof to a pulling and grasping member, which drawing member is surrounded by a flexible body. The drawing member has a length corresponding to a predetermined fibre ribbon length required for establishing cable connections, and the flexible body is provided with grooves adapted to accommodate the fibre ribbons disposed in alignment with the grooves of the cable core. The flexible body is followed by a deformable supporting body surrounding the drawing member and which can be deformed by the connector to provide longitudinally separated and aligned recesses for receiving the end connectors of the ribbons of each ribbon group accommodated in a given groove. Tubular articulated segments and axial preloading means are also present, the former providing an external protection and the latter compensating for the elongation of the drawing member when subjected to pulling forces.
Boero Paolo
Bortolin Bruno
Prysmian Cavi E. Sistemi Energia Srl
Smart & Biggar
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