Anti-kink Cable Sleeve
Publication Date: 2010-Sep-17
The IP.com Prior Art Database
Disclosed is a design for an anti-kink sleeve which maintains the minimum bend radius during the cable routing procedure. The sleeve incorporates an accordion-type design filled with a gel that helps pressurize the cable during bending and prevent kinking.
Anti-kink Cable Sleeve
Currently in rack environments, cable routing is a problem. An abundance of cabling must be contained inside a rack with a door closure to ensure proper isolation between the cold air and warm air aisles. One skilled in the art realizes the difficulty in routing the cables in a limited space. One problem that occurs is maintaining the minimum bend radius for the cables as they are routed to be able to maintain signal integrity for high speed cables. A bend radius less than the minimum specification causes pistoning of the internal cable pairs and deformation of the cable. These two factors result in a degradation of the signal integrity characteristics. Also, once the cable is kinked or the minimum bend radius violated, the cable tends to stay in that shape. Attempts to straighten the cable further impair the signal quality since multiple disjointed contours internally damage the cable.
Known solutions use wiring guides or wiring channels across the front of the rack, twist-ties, or nothing to wire the cable from the server to the side wiring channel and then outside the rack.
The disclosed solution is an anti-kink sleeve that is designed to maintain the minimum bend radius during the cable routing procedure.
This disclosure describes a corrugated sleeve design that ensures that the cable will not go outside the specifications for a minimum bend radius. The corrugated sleeve is fitted at the connector end of the cable. Note that the most susceptible point for kinking or exceeding the minimum bend radius is as the cable exits the server or network equipment. (Figure 1)
Figure 1: Corrugated sleeve fitted at the connector end of the cable
Cables are specified to have a minimum bend radius of approximately five times their diameter. During and after plug-in at the data connection, while the cable is both being tied and-or routed, the pressure sleeve allows the point of connection to maintain a required and desirable shape and avoid exceeding the bend radius. A gel-filled flexible sleeve is slipped or installed over cable during installation of the connector. This ensures that the cable and connector are...