Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
  • G02B6/4439—Auxiliary devices
  • G02B6/4457—Bobbins; Reels
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
  • G02B6/4439—Auxiliary devices
  • G02B6/444—Systems or boxes with surplus lengths

Definitions

• Cable management devices such as cable spools, may be provided in cabinets, racks, or other structures for managing excess length (i.e., slack length) of fiber optic cables.
• cable spools may extend from a surface in columns, rows, or other configurations.
• One or more fiber optic cables may be hung over or wrapped around a curved surface of one or more of these spools to take up the slack length of the fiber optic cable.
• aspects of the disclosure are directed to a telecommunications cable management device including a first spool member having a curved upper surface and a second spool member having a curved upper surface.
• the first spool member and the second spool member are telescopingly mounted to one another.
• the first spool member slides axially relative to the second spool member between retracted and extended positions. In certain implementations, the first spool member is biased towards the extended position. In certain implementations, the first spool member is releasably held in the retracted position. In certain
• the first and second spool members are shaped and configured so that the storage surface has a generally constant cross-dimension along a length of the storage surface regardless of whether the first spool member is retracted or extended.
• telecommunications cable management device including providing a first spool member having a curved upper surface; and providing a second spool member having a curved upper surface.
• the first and second spool members are telescopingly mounted to one another.
• the method also includes extending the first spool member relative to the second spool member; adding a cable to the first spool member in the extended position; and pushing the first spool member relative to the second spool member to a retracted position.
• FIG. 1 is a top front schematic view of an example cable management device including a first spool member mounted to a second spool member in a retracted position;
• FIG. 2 is a top front schematic view of the example cable management device of
• FIG. 1 with the first spool member in an extended position
• FIG. 3 is a top front schematic view of the example cable management device of FIG. 1 with the components exploded outward;
• FIG. 4 is a top plan view of the first spool member of the cable management device of FIG. 1;
• FIG. 5 is a bottom rear perspective view of the first spool member of FIG. 4;
• FIG. 6 is a top plan view of the second spool member of the cable management device of FIG. 1;
• FIG. 7 is a top perspective view of the second spool member of FIG. 6;
• FIG. 8 is a bottom, side perspective view of the second spool member of FIG. 6 with part of one side removed so that an interior of the second spool member is visible;
• FIG. 9 is a side elevational view of the cable management device of FIG. 1;
• FIG. 10 is a cross-section taken along the longitudinal axis of the cable management device of FIG. 9.
• FIG. 11 illustrates part of a cable management system including multiple cable management devices mounted to a panel.
• the cable management device 100 includes a storage surface 108 that extends between a first end 101 and a second end 102.
• a first flange 105 is positioned at the first end 101 of the cable management device 100 to facilitate maintaining the fiber optic cables 150 on the storage surface 108.
• a second flange 106 may be positioned at the second end 102 of the device 100.
• the second flange 106 may define one or more fastening apertures 107 via which the device 100 may be secured to a surface as will be disclosed in more detail herein.
• the management device 100 has a semi-circle shaped lateral cross-dimensional profile. In other implementations, however the lateral cross-dimensional profile of the management device 100 may be circular, oblong, obround, kidney-shaped, etc.
• the cable management device 100 also has at least one cross-dimension.
• the semi-circular shaped management device 100 has a height H (FIG. 9) extending between a top 103 and a bottom 104 of the device 100 and a diameter extending laterally across the device 100.
• the device 100 e.g., a circular shaped device
• the telecommunications cable management device 100 includes a first spool member 110 and a second spool member 120 that are telescopingly mounted to one another.
• first and second objects are telescopingly mounted to each other if the first object slides axially relative to the second object between a first position, in which the first object at least partially overlaps the second object, and a second position, in which the first object overlaps less of the second object.
• the first object overlaps a majority of a length of the second object in the first position and overlaps less than half the length of the second object in the second position.
• the term "telescopingly mounted" does not imply that one object fully surrounds the other.
• the first spool member 110 seats on the second spool member 120.
• the first spool member 110 is configured to slide axially relative to the second spool member 120 between a retracted position (FIG. 1) and an extended position (FIG. 2).
• the storage surface has a first length LI (FIG. 1).
• the storage surface 108 of the device 100 expands to a second length L2 that includes an extension surface 109 (see FIG. 2).
• the first spool member 110 may be biased towards the extended position.
• a spring 130 may be disposed between the first and second spool members 110, 120 (see FIG. 3).
• the spring 130 may have a first end 131 that abuts part of the first spool member 110 and a second end 132 that abuts parts of the second spool member 120.
• the spring 130 includes a coil spring. In other implementations, however, other types of springs may be utilized.
• the first spool member 110 may be releasably held in the retracted position (see FIG. 1) as will be disclosed in more detail herein.
• the first spool member 110 may be latched to the second spool member 120 against the bias of the spring 130.
• the first spool member 110 may be releasably held in both the retracted position and the extended position and freely moveable between the two.
• the first and second spool members 110, 120 are configured so that a cross-dimension of the storage surface 108 is generally constant along the length LI, L2 of the storage surface 108, even when the first spool member 110 is in the extended position.
• the second spool member 120 may be shaped and configured to have a cross-dimension CD2 that is the same as a cross-dimension CD1 of the first spool member 110.
• FIGS. 4 and 5 illustrate one example implementation of a first spool member 110.
• the first spool member 110 includes an elongated body extending between a first end 111 and a second end 112.
• the elongated body of the first spool member 110 defines a curved exterior surface.
• the first spool member 110 has a half-ring shaped lateral cross-sectional profile.
• the first spool member 110 has a circular lateral cross-sectional profile.
• the first spool member 110 has an oblong, obround or otherwise curved cross-sectional profile.
• the first flange 105 is disposed at the first end 111 of the first spool member 110.
• One or more elongated slots 113 are defined at the second end 112 of the first spool member 110.
• the slots 113 are open-ended and extend inwardly from the second end 112.
• the slots 113 extend along less than half of a length of the first spool member 110.
• the slots 113 extend along less than a third of the length of the first spool member 110.
• the elongated slots 1 13 are circumferentially spaced around the curved surface of the first spool member 110.
• the slots 113 have a generally rectangular profile. In other implementations, however, the slots 113 may be tapered or contoured.
• partial slots 113a or notches are cut into the sides of the elongated body (see FIG. 5).
• Guide fingers 114 extend downwardly from an interior surface of the elongated body of the first spool member 110.
• the guide fingers 114 define shoulders, hooks, or other lateral protrusions at the distal ends of the guide fingers 114.
• sets of two or more guide fingers 114 extend downwardly together.
• each set includes two guide fingers 114 having protrusions extending in opposite directions.
• the sets may include additional guide fingers 114.
• a first set of guide fingers 114a is axially spaced from a second set of guide fingers 114b.
• the first spool member 110 includes a greater or lesser number of sets.
• a stop flange 115 is disposed towards the first end 111 of the first spool 110.
• a first spring peg 116 extends inwardly from the stop flange 115.
• the stop flange 115 is disposed flush with the first end 111 of the first spool 110.
• the stop flange 115 is offset inwardly from the first end 111 to define a front recess 117.
• the stop flange 115 is inwardly offset from the radially extending surface of the first flange 105.
• the stop flange 115 has a semi-circular shape.
• FIGS. 6-8 illustrate one example implementation of a second spool member 120.
• the second spool member 120 includes an elongated body extending between a first end 121 and a second end 122.
• the elongated body of the second spool member 133 defines a curved exterior surface.
• the second spool member 120 has a half- ring shaped lateral cross-sectional profile.
• the second spool member 120 has a circular lateral cross-sectional profile.
• the second spool member 120 has an oblong, obround or otherwise curved cross-sectional profile.
• the second flange 106 is disposed at the second end 122 of the second spool member 120.
• an alignment key 123 extends outwardly from the second flange 106.
• the alignment key 123 is generally cylindrical. In other implementations, however, the alignment key 123 may have any desired shape.
• One or more raised ribs 124 are defined at the second end 122 of the second spool member 120.
• the ribs 124 extend from an inner surface of the second flange 106 towards the first end 121 of the second spool member 120. In some implementations, the ribs 124 extend along less than half of a length of the second spool member 120. In certain implementations, the ribs 124 extend along less than a third of the length of the second spool member 120.
• the elongated ribs 124 are circumferentially spaced around the curved surface of the second spool member 120. In certain implementations, the ribs 124 have a generally rectangular cross-sectional profile. In other implementations, however, the ribs 124 may be tapered along their height and/or length.
• One or more elongated openings 125 are defined in the curved upper surface of the second spool member 120.
• first and second elongated openings 125 are defined in the curved upper surface in axial alignment.
• the second spool member 120 may include a greater or lesser number of openings 125.
• a first opening 125 a is axially spaced from a second opening 125b by an intermediate opening.
• a solid surface may extend between the openings 125.
• the first and second spool members 110, 120 are configured to fit together.
• the first spool member 110 is configured to seat on the second spool member 120 so that the first flange 105 is disposed opposite the second flange 106 (see FIG. 9).
• the ribs 124 of the second spool member 120 are sized and shaped to fit within the slots 113 of the first spool member 110.
• the ribs 124 may be sized and shaped to slide axially within the slots 113.
• the guide fingers 114 of the first spool member 110 are sized and shaped to extend into the elongated openings 125 of the second spool member 120.
• the guide fingers 114 are configured to slide within the elongated openings 125 as the first spool member 110 is moved between the retracted and extended positions.
• the second spool member 120 also includes a spring base 126 from which a second spring peg 127 extends towards the first end 121 of the second spool member 120.
• the spring base 126 is recessed axially inward from the first end 121.
• the first end of the second spring member 120 also defines an opening 128 that generally aligns with the second spring peg 127.
• a support member 129 is disposed between the second spring peg 127 and the opening 128.
• the support member 129 includes a generally U-shaped flange that defines a tunnel or passage therethrough.
• the spring 130 (FIG. 3) mounts between the first and second spool members 110, 120.
• the first end 131 of the spring 130 may be mounted over the first spring peg 116 and the second end 132 of the spring 130 may be mounted over the second spring peg 127.
• the body of the spring 130 extends through the opening 128 and the support member 129.
• the spring 130 biases the first spool member 110 away from the second end 122 of the second spool member 120 so that the slots 113 pull away from the ribs 124 and the guide fingers 114 move within the elongated openings 125 towards the first end 121 of the second spool member 120.
• the first and second spool members 110, 120 are configured to releasably secure together in one or more positions.
• the first spool member 110 may be releasably latched to the second spool member 120 against the bias of the spring 130.
• a flexible tab 135 extends forwardly of the first end 121 of the second spool 120.
• the flexible tab 135 includes a contoured section (e.g., a C-shaped section, a J-shaped section, an S-shaped section, etc.) forming a spring.
• a latching member 136 is disposed on the flexible tab 135 so that the latching member 136 may be moved relative to the second spool member 120.
• a grip surface 137 extends outwardly from the contoured section of the flexible tab 135.
• the flexible tab 135 extends forwardly past the stop flange 115 of the first spool member 110 when the first spool member 110 is seated on the second spool member 120. In some implementations, the flexible tab 135 extends into the front recess 117 of the first spool member 110. In certain implementations, the flexible tab 135 does not extend past the first end 111 of the first spool member 110 (see FIGS. 1 and 10). The flexible tab 135 extends sufficiently forward so that the latch member 136 is disposed at an opposite side of the stop flange 115 from the spring 130. The latch member 136 abuts the forward side of the stop flange 115 to inhibit movement of the first spool member 110 to the extended position.
• the first spool member 110 To extend the first spool member 110, a user depresses the grip surface 137, thereby depressing the latch member 136. When the latch member 136 clears the stop flange 115, the first spool member 110 is free to move under the bias of the spring 130. In some implementations, when the spool member 110 is in the extended position, the guide fingers 114 of the first spool member 110 abut forward ends of the elongated openings 125.
• the guide fingers 114 inhibit continued movement of the first spool member 110 off the second spool member 120.
• the ribs 124 of the second spool member 120 are sufficiently raised off the curved upper surface of the second spool member 120 to be generally flush with the curved upper surface of the first spool member 110. Accordingly, a cross-dimension taken of the ribbed portion of the storage surface 108 of the cable management device 100 is about the same as a cross-dimension taken through the rest of the storage surface 108 of the cable management device 100. In certain implementations, the ribs 124 of the second spool member 120 are still partially disposed within the slots 113 of the first spool member (see FIG. 2) when the first spool member 110 is extended.
• the storage surface 108 may be extended (i.e., the length may be increased) without reducing the dimensions of the lateral cross-sectional profile of any location along the storage surface 108.
• the ribs 124 maintain the same bend radius of the fiber or cable 150 as the management device 100 moves between retracted and extended positions.
• the first spool member 110 does not crush or otherwise apply force to the fibers or cables 150 when the first spool member 110 is moved from the extended position back to the retracted position.
• FIG. 11 illustrates a cable management system in which multiple cable management devices 100 are mounted to a panel 140 or other structure.
• the panel 140 has a mounting surface 141.
• the cable management devices 100 are mounted to the panel so that the second flanges 106 are disposed against the mounting surface of the panel 140.
• the panel 140 defines alignment openings through which the alignment key 123 of the second spool member 120 may extend.
• One or more fasteners may be inserted through fastening apertures 107 defined in the second flange 106 and fastening apertures defined in the panel 140.
• the second flange 106 of certain types of cable management devices 100 extends non-parallel to the first flange 105.
• the first flange 105 extends generally perpendicular to the longitudinal axis of the cable management device 100.
• the second flange 106 extends at an angle ⁇ from a perpendicular plane to the longitudinal axis.
• the angle ⁇ ranges from about 5 degrees to about 20 degrees.
• the angle ⁇ ranges from about 10 degrees to about 15 degrees. In one example implementation, the angle ⁇ is about 10 degrees.
• the second flange 106 extends towards the first end 101 of the cable management device 100. Accordingly, the cable management device 100 extends outwardly from the panel 140 at an upward angle when installed to a vertically extending panel 140 (see FIG. 11). This upward angling of the management device 100 facilitates retaining the optical fibers or cables 150 on the management device 100. For example, in some implementations, the upward angling results in a tendency of the fibers or cables 150 to fall/slide/migrate towards the mounting surface 141 of the panel 140.
• the cable management devices 100 define a storage region 145 between the mounting surface 141 of the panel 140 and the first ends 101 of the cable management devices 100.
• the first flanges 105 and/or the stored fibers or cables 150 may inhibit a user from extending hands or even fingers into the storage region 145.
• the grip surface 137 of the latching tab 135 is accessible within the recessed area 117 at the first end 101 of the management device 100.
• moving one of the management devices 100 to an extended position facilitates adding optical fibers or cables 150 to such a densely packed storage region 145 (see FIG. 11).
• the optical fiber or cables 150 may be added to the first end 101 of the management device 100 at a location outside the densely packed storage region 145 (see FIG. 11).
• the ribs 124 maintain any fibers or cables 150 already stored on the management device 100 at a position that allows the second end 112 of the first spool member 110 to slide beneath them when the management device 100 is pushed back to the retracted position.
• moving one of the management devices 100 to an extended position also facilitates removing one or more optical fibers or cables 150 from a densely packed storage region 145.
• extending the first spool member 110 may move the first flange 105 sufficiently to provide a gap at the front of the storage region 145 into which a user may slide their hands or fingers.
• CD1 first cross-dimension

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Light Guides In General And Applications Therefor (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

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Country Status (1)

Cited By (2)

Citations (5)

• 2013
  • 2013-02-14 WO PCT/EP2013/052954 patent/WO2013124204A1/fr not_active Ceased

Patent Citations (5)

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