Cable management panel with sliding drawer and methods

• US 7,373,071 B2
• Filed: 04/30/2007
• Issued: 05/13/2008
• Est. Priority Date: 07/06/2001
• Status: Expired due to Fees

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Douglas, Joel B., Smith, Trevor D., Barnes, Kathleen M., Franklin, Michael J., Hannah, Lonnie E., Trebesch, Steven P.
• Primary Examiner(s): Wood; Kevin S.
• Application Number:
  US11/799,010
• Publication Number:
  US 20070201806A1
• Time in Patent Office: 379 Days
• Field of Search: 385134-137, 385/147
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4452 Distribution frames
• CPC Class Codes: G02B 6/44526 Panels or rackmounts covering a whole width of the frame or rack
• CPC Class Codes: G02B 6/4455 characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding
• CPC Class Codes: G02B 6/4459 Ducts; Conduits; Hollow tubes for air blown fibres
• CPC Class Codes: G02B 6/4478 Bending relief means
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

An optical fiber cable management panel includes drawer assemblies, each including a drawer slidable within a chassis. The drawer assemblies are secured together by a bracket that includes an interlock arrangement with the chassis. Such an interlock arrangement includes a non-threaded stud engaging a hole. Radius limiters may be part of the drawer assembly and include a cable entry aperture have a closed perimeter and a flared cable guide surface around most of, and preferably all of, the closed perimeter to allow for the entry of cables from all directions. A control mechanism controls movement of the radius limiter relative to the drawer assembly. The control mechanism includes a rotating member that has an axis of rotation transverse to the slidable motion of the radius limiter and normal to the radius limiter.

Claims

1. A cable management assembly, comprising:

a) a chassis;

b) a drawer having a sidewall-free construction;

c) a slide that provides a sliding interconnection between the drawer and the chassis;

d) a radius limiter having a bell-mouth portion that leads into a curved cable trough; and

e) a control mechanism that provides synchronized movement of the radius limiter relative to the drawer.

2. The assembly of claim 1, wherein the bell-mouth portion of the radius limiter is defined by a flared cable guide surface that extends along at least a perimeter of the cable trough.

3. The assembly of claim 2, wherein the radius limiter further includes a pivoting cover, a part of the bell-mouth portion of the radius limiter being defined by the cover.

4. The assembly of claim 3, wherein the radius limiter further includes a latching arrangement configured to latch the cover in a closed position.

5. The assembly of claim 1, further including a mounting bracket for mounting the cable management assembly to a frame, the mounting bracket having an interlock arrangement that connects together the chassis of the cable management assembly with another chassis of another cable management assembly.

6. The assembly of claim 5, wherein the interlock arrangement includes a plurality of stub members provided on one of the chassis and the mounting bracket, and a plurality of holes formed in the other of the chassis and the mounting bracket.

7. The assembly of claim 1, wherein the control mechanism includes a wheel having an axis of rotation that is normal to the radius limiter.

8. The assembly of claim 7, wherein the wheel contacts each of a sidewall of the chassis and a surface of the drawer to provide the synchronized movement of the radius limiter relative to the drawer.

9. The assembly of claim 7, wherein the control mechanism further includes a bracket and an axle, the wheel being mounted on the axle.

10. The assembly of claim 9, wherein the bracket is positioned within an elongated slot formed in the sidewall-free construction of the drawer.

11. The assembly of claim 9, wherein the bracket includes a catch arranged to engage a stop member provided on the chassis, the catch and stop member preventing separation of the drawer from the chassis.

12. A radius limiter, comprising:

a) a two piece construction including;

i) a frame piece that defines a curved trough section; and

ii) a hinged cover piece attached to the frame piece at a hinge point, the hinged cover piece including;

1) a finger portion that extends across the curved trough section of the frame piece; and

2) a flared portion interconnected to the finger portion;

b) wherein the flared portion of the hinged cover piece and the curved trough section of the frame piece define a cable entry aperture having a closed, contoured perimeter that limits the bend of cables entering and exiting the cable entry aperture.

13. The radius limiter of claim 12, wherein the finger portion includes tabs that attach to the frame piece at the hinge point.

14. The radius limiter of claim 12, wherein the hinged cover piece includes a latch arrangement that secures the hinged cover piece relative to the frame piece.

15. The radius limiter of claim 12, wherein the closed, contoured perimeter circumscribes the entire perimeter of the cable entry aperture.

16. The radius limiter of claim 12, wherein the curved trough section of the frame piece is defined by first and second curved walls and a base the bridges the first and second curved walls.

17. The radius limiter of claim 12, wherein the hinged cover piece is attached to the frame piece by a snap-fit connection.

18. The radius limiter of claim 12, wherein the frame piece is configured to mount to a sliding drawer.

19. The radius limiter of claim 18, wherein the frame piece includes apertures sized to receive tabs of a control mechanism that provides synchronized movement of the radius limiter relative to the sliding drawer.

20. A control mechanism for synchronizing movement between a cable management device and a drawer that slide relative to a chassis, the control mechanism comprising:

a) an elongated bracket having a first end and a second end, the bracket including;

i) a projection arrangement located at the first end of the bracket, the projection arrangement being configured to mount a cable management device relative to the bracket; and

ii) a catch located at the second end of the bracket, the catch being arranged to limit movement of the drawer relative to the chassis;

b) an axle that defines an axis of rotation; and

c) a wheel mounted on the axle, the wheel being free to rotate about the axis of rotation, the wheel extending outward from the bracket to providing an interface during sliding operation of the drawer relative to the chassis;

d) wherein during such sliding operation, the control mechanism synchronizes movement of the cable management device relative to the sliding movement of the drawer.

21. The control mechanism of claim 20, wherein the cable management device includes a radius limiter having a curved trough portion.

22. The control mechanism of claim 20, wherein the projection arrangement includes a projection having a tab to which the cable management device can be mounted.

23. The control mechanism of claim 20, wherein the projection arrangement includes first and second projections having tabs to which the cable management device can be mounted.

24. The control mechanism of claim 20, wherein the wheel includes a compressible o-ring.