Communication cabling duct having controlled elongation
According to exemplary embodiments of the present invention, an adhesive-backed duct having controlled elongation properties is described. The adhesive backed duct has a main body having a conduit portion with a cavity formed longitudinally therethrough, a flange portion having an adhesive backing layer disposed thereon to mount the duct to a mounting surface, and at least one rod-like strength member disposed within and extending longitudinally with the main body of the duct. The at least one rod-like strength member is comprised of a plurality of aligned segments.
1. A adhesive-backed duct, comprising:
a continuous main body having a conduit portion with a cavity formed longitudinally therethrough;
a flange portion having an adhesive layer to mount the duct to a mounting surface; and at least one rod-like strength member disposed within and extending longitudinally with the main body of the duct, wherein the at least one rod-like strength member is comprised of a plurality of aligned segments wherein the at least one rod-like strength member has a discontinuity between adjacent aligned segments at regular intervals disposed longitudinally along the continuous main body.
2. The duct of claim 1 , wherein the aligned segments and the discontinuities between adjacent aligned segments of the rod-like strength members create non-elongation zones and elongation zones within the duct.
3. The duct of claim 2 , wherein the non-elongation zones are defined as regions of the duct having the aligned segments of the rod-like strength members and the elongation zones can be defined as regions in the duct that are proximate to the discontinuities between adjacent segments of the strength member.
4. The duct of claim 1 , wherein the adhesive layer is disposed on a bottom side of the flange.
5. The duct of claim 1 , wherein the duct is formed from a flexible material so that it can be guided and bent around corners and other structures.
6. The duct of claim 1 , further comprising a plurality of communication lines disposed within cavity formed longitudinally within the conduit portion of the duct.
7. The duct of claim 1 , further comprising a power line disposed within cavity formed longitudinally within the conduit portion of the duct.
8. The duct of claim 7 , wherein the at least one communication line is one of a coaxial cable, a twisted pair copper wire or an optical fiber.
9. The duct of claim 1 , wherein the duct includes two rod-like strength members disposed embedded within the main body of the duct.
10. The duct of claim 9 , wherein the flange includes two flange portions and wherein one of the two rod-like strength members is disposed in one of the two flange portions.
11. The duct of claim 9 , wherein the flange includes two flange portions having a plurality of slits extending through a section the flange portions that includes the two rod-like strength members such that the rod-like strength members are cut creating the plurality of aligned segments.
12. The duct of claim 9 , wherein two rod-like strength members disposed within a side wall of the conduit portion.
13. The duct of claim 1 , wherein the duct includes one rod-like strength member disposed embedded within the main body beneath the conduit portion of the duct.
14. The duct of claim 1 , wherein the at least one rod-like strength member is characterized by a cross-sectional diameter between 0.25 mm and about 1.0 mm.
15. The duct of claim 14 , wherein the duct is made of a flexible resin material and wherein the thickness of the resin material surrounding the rod-like strength member is greater than or equal to the equivalent to the cross-sectional diameter of the rod-like strength member.