Cable containing optical transmission elements and method for the production thereof
AssigneeCCS Technology, Inc.
InventorAndreas Stingl
Life of this patent
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Abstract
A cable, and process for manufacture thereof, containing optical transmission elements. The cable having the following characteristics: a central element stretching in the direction of the cable longitudinal axis, where the central element has at least one slot open to the outside and where the slot runs on the outside of the central element in a helix or screw-like manner, with periodically changing rotation direction; several optical fiber ribbons arranged inside the slot in a stack, situated one above the other, where an additional equal lay stranding is applied to the SZ-stranding imposed by the slot path; and a single or multi-layer jacket surrounds the central element.
Claims12
A cable containing optical transmission elements comprising:
- a central element (ZE), the central element (ZE) stretching in the direction of a cable longitudinal axis (z), where the central element (ZE) has at least one slot (K) open to the outside and where the slot (K) runs on the outside of the central element (ZE) in a SZ orientation having a periodically changing rotation direction;
- a plurality of optical fiber ribbons (LB), the plurality of optical fiber ribbons (LB) being arranged inside the slot in a ribbon stack, where an additional equal lay stranding is applied to the SZ-stranding imposed by the slot path;
- and
- a jacket surrounds the central element ZE.
A process for the manufacture of a cable containing optical transmission elements comprising the following steps:
- providing a central element (ZE), the central element (ZE) having at least one slot (K), wherein the slot (K) runs at the outside of the central element (ZE) in a S-Z orientation having a changing rotational direction,
- paying off a plurality of optical fiber ribbons serving as transmission elements from a plurality of respective reels,
- combining the plurality of optical fiber ribbons into a ribbon stack (BS),
- rotating the ribbon stack (BS) with a constant angular speed about a ribbon stack longitudinal axis,
- inserting the ribbon stack (BS) rotating with a constant angular speed into the slot (K), and
- extruding a jacket (MA) about the central element (ZE).
Dependencies are inferred from the claim text.