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Floating Alignment Tube with Spring Loaded Captive Spring and Screw Assembly

IP.com Disclosure Number: IPCOM000238052D
Publication Date: 2014-Jul-29
Document File: 4 page(s) / 631K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a design for a floating alignment tube with captive spring and screw assemblies located in the air moving and power supply chassis. This enables access to load screws in electronic board packaging so that a user can properly torque the screws.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 82% of the total text.

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Floating Alignment Tube with Spring Loaded Captive Spring and Screw Assembly

The system level bulkhead mating to a drawer stiffener using several load screws is critical to the function of the electronic board packaging. The load screws prevent micro- motion vibration between the mating pairs of the main input/output (I/O) connectors between the processor board and the power supply chassis. The problem is that the load screws are hidden. These load screws need to be torqued and each must be verified for the specified torque value. If these load screws are not correctly torqued, then damage can occur to the I/O connectors and cause an outage to the electronic system. The depth of the air moving and power supply chassis, which is over

11 inches (280 mm), does not allow direct access to the load screws and it is very difficult see the position of the torque screws.

The novel solution is a floating alignment tube with captive spring and screw assemblies located in the air moving and power supply chassis. Each floating alignment tube assembly is assembled to sheet metal brackets and is fixed in place. Once the bulkhead, stiffener, and the air moving and power supply chassis are in assembled position, the ends of each alignment tube are exposed in the rear of the system. Then, a hex rod tool is inserted inside the alignment tube until the screw is engaged. The user turns the hex rod tool until the specified torque is reached. The alignment tube assembly moves forward...