Optical fibers can be used to transmit large volumes of data and voice signals over relatively long distances, with little or no signal degradation. For this reason, optical fibers have become widely used in the telecommunication field. As the use of optical fibers has increased, new systems have been developed for managing and organizing larger numbers of optical fibers.
In a typical telecommunications facility, a trough system is used to route the fiber optic cables. Generally, the trough system is located overhead and over the location of the fiber optic racks, cabinets, and other equipment. The trough system in even a small telecommunications facility can be substantial, requiring significant time and expense to install. Some systems require tools for installation of the trough system, adding to the assembly time and expense. Even systems that do not require tools for installation of the system may require substantial planning to design the trough coupling system for a particular installation.
Making larger trough systems to accommodate the large numbers of optical fibers from a single molded part can be difficult. For example, making longitudinal trough members having a width of about 24 inches across or more can be difficult to mold in a single part with an extrusion.
This Brief Summary is provided to introduce simplified concepts relating to trough systems for routing connectivity cables (e.g., optical fibers) which are further described below in the Detailed Description. This summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
This disclosure relates to trough systems for routing connectivity cables that can be extrusion molded and assembled and disassembled quickly and easily. Generally, the trough systems include members extending a longitudinal length and configured to attach coplanarly. The members have sides arranged to attach to each other coplanarly along the longitudinal length. The members may be coplanarly attached along the longitudinal length via a snap-fit, interference-fit, friction-fit, press-fit, etc. on site. The members are attached together to form the trough systems. An advantage of such trough systems is that the trough systems provide improved manufacturability and improved ease of installation. For example, one advantage of attaching individual members coplanarly along the longitudinal length to form the trough systems is that it provides for molding smaller individual members that quickly assemble into a large unit more easily than molding a single extrusion as a large unit. For example, the individually molded members may be attached coplanarly along the longitudinal length to form a longitudinal trough system having a width of about 24 inches across or more, which is relatively more easy than extrusion molding a single longitudinal trough having a width of about 24 inches across or more.
Furthermore, as trough systems are intended for carrying significant lengths of cable, the length of a section of a trough system is generally relatively much longer than the width thereof. For example, a section of a trough system may extend 12 feet or longer, while the individual pieces that are assembled to form the section may be less than 12 inches in width. Moreover, each section of the trough system may be less than one inch thick. In an effort to minimize cost and increase the speed of production, conventional trough systems are frequently formed using a lightweight plastic material. While plastic may be cheaper to manufacture, easier to use, and faster to produce the pieces, due to the material properties associated with plastic, a piece of a trough system (or any plastic object) having dimensions similar to those described above (e.g., ˜12′ long x˜12″ wide x˜1″ thick) has a natural tendency to flex along the length thereof when not supported at regular intervals. In a known conventional trough system having multiple pieces, due to the design of the connection means implemented therein, the assembly of two adjacent trough pieces is known to require at least two positioning steps to create a stable connection. A first step requires orienting a lateral side (i.e., in the length direction) of one trough piece with respect to an adjacent lateral side of another trough piece such that the respective x-y planes of the trough pieces intersect at an obtuse angle, where the x direction is the width and the y direction is the length of the trough pieces. This first orientation enables the opposing connection means to engage within preshaped entry locations on the lateral sides. The second step is to then allow the trough pieces to relax and lay coplanarly. However, because the trough pieces are plastic and are so long, the first step requires either multiple workers or an additional tool/instrument to support and hold the entire length of one of the trough pieces in the correct orientation to enable the connection means to engage properly before the trough piece is able to be relaxed. Thus, the conventional trough system is complicated to assemble.
In an embodiment of the instant application, a trough system for routing connectivity cables includes a first member, a second member, and a third member. The first member may be in a plane and extend a longitudinal length for forming a first portion of a carrying surface of the trough system. The second member may be in the same plane and extend the longitudinal length for forming a second portion of the carrying surface of the trough system. Thus, the second member is configured to attach coplanarly to a first side of the first member. The third member may also be in the same plane and extend the longitudinal length for forming a third portion of the carrying surface of the trough system. Therefore, the third member is configured to attach coplanarly to a second side, opposite the first side, of the first member.
The detailed description is set forth with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items.
As noted above, making larger trough systems, to accommodate the large numbers of optical fibers, from a single molded part can be difficult, which may be particularly true for extruding a single molded trough, where the single molded trough has a width of about 24 inches across or more. This disclosure is directed to trough systems for routing connectivity cables that can be extrusion molded, and assembled and disassembled quickly and easily. The trough systems may include a plurality of members extending a longitudinal length and configured to attach coplanarly. For example, the trough systems may include a first member extending a longitudinal length and a second member extending the longitudinal length, and the first and second members may be coplanarly attached along the longitudinal length via cooperating attachment features extending at least a portion of the longitudinal length along sides of the first and second members. When coplanarly attaching the first member to the second member, for example, a user may position the first member in a plane, position the second member in the same plane, and attach (e.g., snap-fit, interference-fit, friction-fit, press-fit, etc.), coplanarly, the first member to the second member.
In this way, the trough systems for routing connectivity cables are quickly and easily assembled on site. Moreover, and in this way, the individual members may be attached coplanarly along the longitudinal length to form the trough system having a width of about 24 inches across or more, which is relatively more easy than extrusion molding a single longitudinal trough having a width of about 24 inches across or more.
While this application describes implementations that are described in the context of an overhead trough system for managing optical fibers in a telecommunications facility, the implementations described herein may be used in other environments and are applicable to other contexts. For example, the trough systems may be located at any desired location, including overhead, below the floor, or at any location in between. In addition, the trough systems may be used to manage fibers other than optical fibers, such as wires, Ethernet cables, coaxial cables, and/or other signal carrying fibers, and may be used in any environment in which such fibers are used. Moreover, while this application describes trough systems that include individual members that attach along a longitudinal length to form a longitudinal trough system having a width of about 24 inches across, other widths are contemplated. For example, the trough systems may include individual members that attach along a longitudinal length to form a longitudinal trough system having a width of about 36 inches across or more.
The trough systems may include a first member in a plane and extend a longitudinal length for forming a first portion of a carrying surface of the trough system. A second member may be in the same plane and extends the longitudinal length. The second member may provide for forming a second portion of the carrying surface of the trough system, and the second member may be configured to attach coplanarly to a first side of the first member. A third member may be in the same plane and extends the longitudinal length. The third member may provide for forming a third portion of the carrying surface of the trough system, and the third member may be configured to attach coplanarly to a second side, opposite the first side, of the first member.
The trough systems may include a first member including a first attachment feature and a second attachment feature, a second member including an attachment feature, and a third member including an attachment feature. The first and second attachment features of the first member may extend at least a portion of the longitudinal length of the first member. The attachment feature of the second member may extend at least a portion of the longitudinal length of the second member, and the attachment feature of the third member may extend at least a portion of the longitudinal length of the third member. The first attachment feature of the first member may attach coplanarly to the attachment feature of the second member or attach coplanarly to the attachment feature of the third member. The second attachment feature of the first member may attach coplanarly to the attachment feature of the second member or attach coplanarly to the attachment feature of the third member.
While
While
When the first, second, and nth members 104(1), 104(2), and 104(n) are attached, the seam, joint, interface, etc. between the first member 104(1) and the second member 104(2), and the seam, joint, interface, etc. between the first member 104(1) and the nth member 104(n) are each relatively small to avoid pinching any portion of any of the connectivity cables being routed through the trough system 100. For example, the each of the seam between the first member 104(1) and the second member 104(2) and the seam between the first member 104(1) and the nth member 104(n) have a gap smaller than a diameter of a single optical fiber to prevent any one of the optical fibers being routed through the trough system 100 from dropping into the gaps of the seams. In one example, a single optical fiber may have an outside diameter of about 0.04 inches and each of the seams may have a gap having size smaller than the outside diameter of about 0.04 inches to prevent any of the optical fiber from dropping into the gaps and being pinched by the seams. The relatively small seams provide for the carrying surface 120 of the trough system 100 to be relatively smooth and planar.
In one example, the channels 302 and 304 may be recessed into the portions of the carrying surface of the second and nth members 104(2) and 104(n) and the plurality of lights may be disposed at least partially in the recessed channels 302 and 304. In another example, each of the channels 302 and 304 may be defined by a pair of flanges protruding from the portions of the carrying surface of the second and nth members 104(1) and 104(n).
The first, second, third and fourth attachment features 402(1)-402(4) may provide for attaching the second member 104(2) and the nth member 104(n) to the first and second sides 208(1) and 208(2) of the first member 104(1) coplanarly (as discussed above with respect to
The attachment features 402(1), 402(2), 404, and 406 may be snap-fit features, interference-fit features, friction-fit features, press-fit features, etc. configured to attach the first member 104(1), the second member 104(2), and the nth member 104(n) while the first member 104(1), the second member 104(2), and the nth member 104(n) remain coplanar. For example, the first member 104(1), the second member 104(2), and the nth member 104(n) may be pushed together, while in the same plane 204, to snap-fit, interference-fit, friction-fit, press-fit, the first member 104(1), the second member 104(2), and the nth member 104(n) in the same plane 204.
The attachment of the second attachment feature 402(2) of the first member 104(1) with the attachment feature 408 of the nth member 104(n) may be the same as the attachment of the first attachment feature 402(1) of the first member 104(1) and the attachment feature 404 of the second member 104(2). For example, the second attachment feature 402(2) of the first member 104(1) may include snap-fit members, and the attachment feature 408 of the nth member 104(n) may include cooperating snap-fit members that coplanarly attach.
Process 800 includes operation 802, which represents positioning a cable carrying surface of a first member (e.g., first member 104(1)) in a plane (e.g., plane 204). The first member extending a longitudinal length (e.g., longitudinal length 108) and forming a first portion (e.g., first portion 206(1)) of a carrying surface (e.g., carrying surface 120) of the trough system.
Process 800 continues with operation 804, which represents positioning a cable carrying surface of a second member (e.g., second member 104(2)) in the same plane. The second member extending the longitudinal length and forming a second portion (e.g., second portion 206(2)) of the carrying surface of the trough system.
Process 800 continues with operation 806, which represents attaching, coplanarly, the second member to a first side (e.g., first side 208(1)) of the first member. For example, a first attachment feature (e.g., first attachment feature 402(1)) of the first member may attach coplanarly to an attachment feature (e.g., attachment feature 404) of the second member. For example, the attachment features may be snap-fit features, interference-fit features, friction-fit features, press-fit features, etc. configured to attach the first member and the second member while the first member and the second member remain coplanar.
In one example, process 800 may continue with operation 808, which represents positioning a cable carrying surface of a third member (e.g., nth member 104(n)) in the same plane. The third member extending the longitudinal length and forming a third portion (e.g., nth portion 206(n)) of the carrying surface of the trough system. Operation 808 may include attaching, coplanarly, the third member to a second side (e.g., second side 208(2)) of the first member. For example, a second attachment feature (e.g., second attachment feature 402(2)) of the first member may attach coplanarly to an attachment feature (e.g., attachment feature 408) of the third member. For example, the attachment features may be snap-fit features, interference-fit features, friction-fit features, press-fit features, etc. configured to attach the first member and the third member while the first member and the third member remain coplanar.
In another example, process 800 may continue with operation 810, which represents attaching a support member (e.g., support member 706) to a channel (e.g., channel 306 or channel 308).
Process 800 may be completed with operation 812, which represents attaching the support member to an underside (e.g., underside 708) of a cable management component (e.g., cable management component 112). The cable management component having a passageway (e.g., passageway 702), and at least a portion (e.g., portion 704) of the passageway of the cable management component is disposed in the trough system proximate to a top surface (e.g., top surface 604) of the trough system.
While this application describes implementations that are described in the context of a three-part assembly (e.g., three members) that connects in a coplanar manner, there may be only a two-part assembly (e.g., two members) that connects in a coplanar manner.
While
Although the invention has been described in language specific to structural features and/or methodological acts, it is to be understood that the invention is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as illustrative forms of implementing the invention. For example, while embodiments are described having certain shapes, sizes, and configurations, these shapes, sizes, and configurations are merely illustrative.