Patent ID: 6161803
Filing Date: 2000-12-19
Classification: F16L,H02G

Abstract:
An expandable wiring trough for an enclosure for telecommunications equipment, the wiring trough comprising a male piece and a female piece, adapted to receive the male piece at a plurality of positions defining an opening having different sizes to accommodate different amounts of wiring, wherein:the male piece comprises a male arm;the female piece comprises a female arm defining a cavity adapted to receive the male arm;the cavity within the female arm defines a saw-toothed first inner surface and a smooth second inner surface having a first stop at a proximal end of the cavity;the cavity defines only a single saw-toothed inner surface;the male arm comprises a first extension configured to engage the saw-toothed first inner surface of the cavity within the female arm at the plurality of positions;the male arm further comprises a second extension configured to engage the first stop at the proximal end of the cavity within the female arm to inhibit the male piece from being removed from within the female piece; andthe male piece comprises a retaining arm that is offset in a first direction from a retaining arm of the female piece, wherein the first direction is substantially orthogonal to longitudinal axes of the retaining arms, such that, when the male piece is assembled within the female piece, the retaining arms provide clearance in the first direction while overlapping in a second direction, wherein the second direction is substantially parallel to the longitudinal axes of the retaining arms, to inhibit wires from inadvertently falling out of the opening.