Browse Prior Art Database

Flexible Cable Management Arm Disclosure Number: IPCOM000126789D
Original Publication Date: 2005-Aug-01
Included in the Prior Art Database: 2005-Aug-01
Document File: 2 page(s) / 112K

Publishing Venue



Disclosed is a method for managing the cables that exit the rear of rack-mounted servers utilizing a single, plastic, flexible I-beam.

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Flexible Cable Management Arm

The flexible plastic I-beam acts as a cable management arm (CMA to carry the cables from the rear of the servers to the rear EIA rail of the rack). Because it is a single flexible beam, it eliminates the need for articulating hinges at the center of the CMA and because it can be molded and has less parts is cheaper to produce. The bowing of the plastic beam provides a natural bend radius limiter for the cables; and air holes can be molded into the I-beam allowing air to escape more easily

As may be seen in the diagram below, the I-beam is attached by a hinge to the rear of the server and to the rear EIA rail of the rack. Its flexible nature allows it to fold into a U shape when the server is in its normal position and to open out when the server is pulled forward to the service position. This U shape also acts as a natural bend radius limiter.

The cable trough attached to the I-beam is so designed that it will carry cable whether the CMA is mounted on the left or right side of the rack, because it can be turned over to fit the other side. This allows greater flexibility in server design. The CMA has air gaps between the L-shaped fingers that hold the cables. The L-shaped fingers help ensure that cables can be laid along the length of the CMA quickly and easily.

The I-beam is molded so that it has a natural bow in it; the degree of bowing is found when the server is at the half-way point between normal working position and service pos...