Cable storage spool with center feed
10625978 ยท 2020-04-21
Assignee
Inventors
Cpc classification
B65H2701/32
PERFORMING OPERATIONS; TRANSPORTING
B65H75/4402
PERFORMING OPERATIONS; TRANSPORTING
B65H2701/34
PERFORMING OPERATIONS; TRANSPORTING
B65H75/38
PERFORMING OPERATIONS; TRANSPORTING
International classification
B65H54/28
PERFORMING OPERATIONS; TRANSPORTING
G02B6/44
PHYSICS
B65H75/38
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A telecommunications cable spool for storing, paying-out, and reeling-in a telecommunications cable includes a spool, an axis of rotation, and a rotatable cable guide mounted about the axis. The spool defines a wrapping area that receives a plurality of wraps of the cable and defines a circumference. The axis passes through the spool within the circumference. The guide defines a rotating cable guide path with a first end adjacent the wrapping area and a second end positioned near the axis. The first end of the path is oriented at least partially tangential to the circumference, and the second end of the path is oriented at least partially aligned with the axis. The cable is routed along a cable route that extends between first and second ends with a storage portion between the ends of the route. The route includes a transitional portion along the guide path between the storage portion and the second end of the route. A portion of the transitional portion is routed through a center of the storage portion. A deployed portion of the cable is paid-out from the second end of the cable route.
Claims
1. A telecommunications cable spool for storing, paying-out, and reeling-in a telecommunications cable, the telecommunications cable spool comprising: a spool defining a wrapping area adapted to receive a plurality of wraps of the telecommunications cable, the wrapping area defining a circumference; an axis of rotation that passes through the spool within the circumference of the wrapping area; a rotatable cable guide rotatably mounted about the axis of rotation, the rotatable cable guide including a first tube structure defining a rotating cable guide path that extends between a first end adjacent the wrapping area of the spool and a second end positioned nearer to the axis of rotation than the circumference of the wrapping area, the first end of the rotating cable guide path oriented at least partially tangential to the circumference of the wrapping area, and the second end of the rotating cable guide path oriented at least partially aligned with the axis of rotation; wherein a base including a second tube structure that defines a base cable guide path that extends between a first end adjacent the second end of the rotating cable guide path and a second end positioned adjacent a third tube having a cable entrance/exit.
2. The telecommunications cable spool of claim 1, wherein a portion of the first tube structure of the rotating cable guide path passes within the wrapping area of the spool.
3. The telecommunications cable spool of claim 1, wherein the spool is adapted to rotate.
4. The telecommunications cable spool of claim 3, wherein the spool is rotatably mounted about the axis of rotation.
5. The telecommunications cable spool of claim 1, further comprising a base for mounting the telecommunications cable spool to an external structure.
6. The telecommunications cable spool of claim 5, wherein the spool is fixedly mounted to the base.
7. The telecommunications cable spool of claim 1, wherein the second end of the base cable guide path is oriented substantially parallel to the axis of rotation.
8. The telecommunications cable spool of claim 7, wherein the second end of the base cable guide path is substantially coaxial with the axis of rotation.
9. The telecommunications cable spool of claim 1, wherein the second end of the base cable guide path is oriented substantially perpendicular to the axis of rotation.
10. The telecommunications cable spool of claim 1, wherein the wrapping area of the spool is substantially cylindrical.
Description
DRAWINGS
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DETAILED DESCRIPTION
(44) Reference will now be made in detail to the exemplary aspects of the present disclosure that are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like structure. When like structure is included on different embodiments, a prime (), double prime (), etc. may be appended to the same reference number to indicate the like structure on a different embodiment.
(45) According to the principals of the present disclosure, a cable spool assembly 100 is disclosed that may store, pay-out, and reel-in a telecommunications cable 80 (see
(46) The cable spool assembly 100 does not require a rotary union, but rather wraps 86 around the cable spool assembly 100 may be transformed into axial twist along a length of the telecommunications cable 80. In certain embodiments, one rotation of the axial twist may be imparted to the telecommunications cable 80 as each of the wraps 86 are wound around the cable spool assembly 100. In other embodiments, the axial twist may be pre-applied to the telecommunications cable 80 and one rotation of the axial twist may be untwisted from the telecommunications cable 80 for each of the wraps 86 that are wrapped on the cable spool assembly 100. In certain embodiments, an act of wrapping the telecommunications cable 80 about the cable spool assembly 100, imparts one rotation of the axial twist about the telecommunications cable 80 for each of the wraps 86 that are wrapped upon the cable spool assembly 100. By winding and unwinding the telecommunications cable 80 about the cable spool assembly 100, the wraps 86 may be transformed to the axial twist, and the axial twist may be transformed to the wraps 86.
(47) Turning now to the figures and in particular
(48) In the depicted embodiment, the first flange 152 and the second flange 154 are each made of complimentary segments 162 and 164, respectively, that do not overlap each other along a circumferential direction. By having the first flange 152 and the second flange 154 not overlap each other in the circumferential direction, an injection molding tool can be made to injection mold the spool portion 140 in one piece. Spaces 166 (i.e., gaps) on the first flange 152 may provide an entrance/exit for the telecommunications cable 80.
(49) The cable winding/unwinding member 170 includes a hub 172 that is positioned within the cable wrapping area 146 of the spool portion 140. The winding/unwinding member 170 includes a flange 174 that extends radially outwardly from the hub 172 to a circumferential flange 176 that is positioned through the annular space 158 of the spool portion 140. The winding/unwinding member 170 defines the cable path 200 that extends from a first end 202 to a second end 204. The second end 204 is oriented at least partially tangential to the cable wrapping area 146 of the spool portion 140. The first end 202 is positioned in the annular space 158 defined between the flange 154 and the circumferential outer wall 156 of the spool portion 140.
(50) The cable path 200 extends from the second end 204 along an externally facing channel 178 that extends along the circumferential flange 176 of the winding/unwinding member 170 and then onto the flange 174 of the cable winding/unwinding member 170 where it spirals toward the hub 172 of the cable winding/unwinding member 170. At the hub 172, the cable path 200 is positioned generally tangentially as it approaches an axis A1 of the cable winding/unwinding member 170 and is positioned within the cable wrapping area 146 of the spool portion 140. The spool portion 140 defines an axis A2 that is concentric with the cable wrapping area 146. The cable wrapping/unwrapping member 170 defines an axis A3 that is concentric with the outer flange 176 of the wrapping/unwrapping member 170.
(51) As illustrated at
(52) The winding/unwinding member 170 may be rotated relative to the base 120 by engaging a drive attachment 194 (e.g., a hex head) of the hub 172. By rotating the winding/unwinding member 170 in a first rotational direction D1, as illustrated at
(53) Upon rotating the winding/unwinding member 170 in a second rotational direction D2 as illustrated at
(54) As illustrated at
(55) Turning now to
(56) The winding/unwinding member 170 may further include a drive attachment 194 that includes a square internal drive. As illustrated at
(57) The base 120 may include a set of fastener holes 168. The fastener holes 168 may be used to mount the cable spool assembly 100 to a structure (a panel, a cabinet, etc.). The base 120 may further include an entrance/exit 148. As illustrated, the entrance/exit 148 extends radially outwardly from a spool portion 140 and provides a conduit between an interior of the spool portion 140 and an exterior of the cable spool assembly 100. The smooth transitional area 208 and the entrance/exit 148 may work together to allow the telecommunications cable 80 to enter and exit the cable spool assembly 100 along a plane that is substantially parallel to a mounting plane of the cable spool assembly 100.
(58) The retraction and deployment of the telecommunications cable 80 from the cable spool assembly 100 is similar to that of the cable spool assembly 100. However, the first end 82 of the telecommunications cable 80 may either be routed downwardly through the opening 206 and exit through a bottom of the cable spool assembly 100, or the first end 82 may be routed through the entrance/exit 148 and thereby enter and exit the cable spool assembly 100 substantially perpendicular to an axis of rotation of the winding/unwinding member 170 (e.g., the axis A3). The second end 84 may enter/exit the cable spool assembly 100 in a manner similar to the cable spool assembly 100.
(59) In configurations of the cable spool assembly 100 that include the first end 82 of the telecommunications cable 80 exiting in a downward direction, the first end 82 may be extended away from or retracted into the cable spool assembly 100 in any direction within a hemisphere H, as illustrated at
(60) Turning now to
(61) Turning now to
(62) In certain embodiments, it may be desired that the winding/unwinding member 170 be held with respect to the base 120 and thereby prevent unwanted retraction of the telecommunications cable 80 even though the spring 350 is applying a torsional load between the winding/unwinding member 170 and the base 120. To accommodate this, the winding/unwinding member 170 includes a hub 172 that includes a catch and release mechanism 173 (see
(63) Turning now to
(64) In certain embodiments, the cable spool assembly 100 may include a spool 400 that is rotationally separate from the winding/unwinding member 170 and the base 120. In other embodiments, the spool 400 may be connected to the base 120. The cable spool assembly 100 may retract and deploy the telecommunications cable 80 by rotationally moving the winding/unwinding member 170 relative to the base 120. As with the previous embodiments, the winding/unwinding member 170 may be spring loaded relative to the base 120.
(65) To deploy the telecommunications cable 80, the first end 82 may be pulled away from the cable spool assembly 100 and thereby cause rotation of the winding/unwinding member 170. In addition, the telecommunications cable 80 may be deployed by pulling on the second end 84 thereby rotating the spool 400. In certain embodiments, deploying the telecommunications cable 80 by the first end 82 may be preferred as any twisting that may occur along the telecommunications cable 80 is distributed along a length of the telecommunications cable 80.
(66) As illustrated at
(67) As illustrated at
(68) As depicted, the base 120 includes a first passage 502 that is adjacent the external portion 82e. The base 120 may also include a passage 504 adjacent the external portion 84e. As illustrated at
(69) The first passage 502 may be defined within a tube-like structure 512, and the passage 504 may be defined within a tube-like structure 514. The first passage 502 may align with the funnel 582 at a first end. The first passage 502 may become concentric with the axis A6 at a second end. The spool 400 may be rotatably mounted on the second end of the structure 512. Likewise, the winding/unwinding member 170 may be rotatably mounted at the second end of the structure 512. The tube-like structure 514 may be aligned with the funnel 584 and may be further aligned with the first end of the first passage 502.
(70) As illustrated at
(71) The winding/unwinding member 170 may include a passage 602 that extends from a first end 602a (see
(72) The winding/unwinding member 170 may be rotationally connected to the base 120 by a threaded connection and thereby move the first end 602a as wrapping and unwrapping of the telecommunications cable 80 occurs and thereby wind the telecommunications cable 80 in a helical manner about the wrapping area 402 of the spool 400. The winding/unwinding member 170 may be connected to the base 120 in such a way that reciprocating motion occurs between the winding/unwinding member 170 and the base 120 thereby winding the telecommunications cable 80 in a helical manner that reverses and continues with multiple layers of cable depth.
(73) The passage 602 may be included in a tube-like structure 612. The tube-like structure 612 may smoothly continue from the tube-like structure 512 at a joint between the tube-like structure 512 and the tube-like structure 612. The tube-like structures 512, 514, and 612 may be coated internally with a low friction material (e.g., Teflon) to facilitate easy passage of the telecommunications cable 80 through the passages 502, 504, and 602.
(74) As illustrated at
(75) Turning now to
(76) Turning now to
(77) According to the principals of the present disclosure, the cable spool assemblies 100, 100, 100, 100, 100, 100, 100 can pay-out and/or reel-in an extended length of the telecommunications cable 80 without disconnecting the telecommunications cable 80 from a paid-out end 82 (i.e. the first end). The cable spool assemblies 100, 100, 100, 100, 100, 100, 100 can pay-out and/or reel-in the extended length of the telecommunications cable 80 without disconnecting the telecommunications cable 80 from a base end 84 (i.e. the second end). In particular, the paid-out end 82 can be pulled from the cable spool assemblies 100, 100, 100, 100, 100, 100, 100 at various lengths including the extended lengths to bring the paid-out end 82 of the telecommunications cable 80 to a desired location.
(78) As mentioned above, the cable spool assemblies 100, 100, 100, 100, 100, 100, 100 do not require a rotary union. Rather, the wraps 86 of a stored portion of the telecommunications cable 80 within a storage area of the cable spool assembly 100, 100, 100, 100, 100, 100, 100 are transformed into axial twist along the length of the telecommunications cable 80 while the cable spool assembly 100, 100, 100, 100, 100, 100, 100 is paying-out a paid-out portion of the telecommunications cable 80. The accumulated twist in the telecommunications cable 80 can be managed by choosing an appropriate size (e.g., diameter) for the wrapping area 146, 402. In particular, the larger the diameter of the wrapping area 146, 402, the lower the accumulated twist per unit length of the telecommunications cable 80 (i.e., one twist per the diameter of the wrapping area 146, 402). Depending on the application, an optimal size of the wrapping area 146, 402 may be selected based on properties of the telecommunications cable 80 and the available space for the cable spool assembly 100, 100, 100, 100, 100, 100, 100.
(79) The telecommunications cable 80 is transferred from the stored portion to a transitional portion (e.g., the segments 80i and/or 82i) and then to the paid-out portion 82e. The transitional portion 80i, 82i is adjacent and between the wraps 86 of the stored portion and the paid-out portion 82e. The paid-out end 82 is continuously connected to the base end 84 while the telecommunications cable 80 is being paid-out.
(80) The cable spool assemblies 100, 100, 100, 100, 100, 100, 100 may include a terminal. The terminal may not necessarily be substantially extendable from the cable spool assembly 100, 100, 100, 100, 100, 100, 100. The terminal may be generally stationary with the cable spool assembly 100, 100, 100, 100, 100, 100, 100. In certain embodiments, the terminal may be fixed with the base 120, 120, 120, 120, 120 of the cable spool assembly 100, 100, 100, 100, 100, 100, 100. The terminal may be attached to the base 120, 120, 120, 120, 120 by a terminal portion (i.e., the segments 84i and/or 84e) of the telecommunications cable 80. The terminal can be connectorized by a fiber optic connector and/or a fiber optic adaptor. The terminal can be permanently or semi-permanently connected to a fiber optic component, a fiber optic network, etc. If it is desired to change the position of the first end 82, the terminal can remain connected to the fiber optic component, the fiber optic network, etc.
(81) To accommodate the first end 82 changing position, particularly when the change in position results in a difference in length between the terminal and the first end 82, the wraps 86 can be unwrapped and transfered to the paid-out portion 82e of the telecommunications cable 80. A number of the wraps 86 changes as the telecommunications cable 80 is paid-out. In the depicted embodiment, the telecommunications cable 80 extends continuously between the first end 82 and the second end 84. In preferred embodiments, pulling the first end 82 actuates the cable spool assembly 100, 100, 100, 100, 100, 100, 100. When the cable spool assembly 100, 100, 100, 100, 100, 100, 100 actuates, the base 120, 120, 120, 120, 120 typically remains stationary.
(82) Two of the cable spool assemblies 100, 100, 100, 100, 100, 100, 100 may be combined. For example, the mounting side of a first of the cable spool assemblies 100 may be placed adjacent to the mounting side of a second of the cable spool assemblies 100. The second ends 84 of the first and the second of the cable spool assemblies 100 may be merged (e.g., continuous with each other) thereby creating a cable spool assembly that can pay-out extended lengths of the telecommunications cable 80 from either of two ends.
(83) Various modifications and alterations of this disclosure will become apparent to those skilled in the art without departing from the scope and spirit of this disclosure, and it should be understood that the scope of this disclosure is not to be unduly limited to the illustrative embodiments set forth herein.