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SWING ARM STORAGE SYSTEM

IP.com Disclosure Number: IPCOM000239239D
Publication Date: 2014-Oct-23
Document File: 8 page(s) / 482K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present disclosure is related to an improved storage system designed to hold engine parts. In particular, the present disclosure is directed to a storage system for the storage of the low pressure turbine (LPT) discs of relatively large turbofan engines.

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SWING ARM STORAGE SYSTEM

TECHNICAL FIELD

    The present disclosure is related to an improved storage system designed to hold engine parts. In particular, the present disclosure is directed to a storage system for the storage of the low pressure turbine (LPT) discs of relatively large turbofan engines.

BACKGROUND

    As turbofan engines continue to increase in size, there are new difficulties associated with storing their components during the manufacturing process. For example, problems have arisen with respect to the storage of the low pressure turbine (LPT) discs of the turbofan engine. These storage problems have introduced a risk and a nuisance for employees at the factory.

    The previous method for storing the LPT discs was a storage rack that included 6 square drawers. The disadvantages to this rack were that it required a 140lb push/pull force to open and close each drawer when loaded; it was enclosed, making it difficult to assess readiness for next operation; it had multiple pinch points; and employees were required to reach 28" across grease covered drawer slides to attach a lifting fixture to center of a circular part that was stored on square pull out drawers. Additionally, the storage racks had to be repaired often leading to relatively high maintenance costs. There was also risk for damaging the disks when using a crane to lift them when the drawers did not pull out properly, which happened relatively frequently. The drawer systems were also costly, not only in their initial cost to purchase but also in the


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replacement costs for the drawer slides, which don't last long in use. Due to these problems, the manufacturing process was inefficient, and the employees operating the drawers were at risk for injury and became fatigued. They was also a risk to employees, which could be costly, and they were time inefficient which meant that production was slowed.

    A previous attempt to fix the problems associated with these drawer storage racks was to use push/pull sticks that would attach to the drawers and eliminate the employees' bending and reaching. However, this solution did not lessen the actual force required and the poles could slip off the drawers, presenting another injury risk. Another attempt was to use air assisted drawer movement mechanisms. But, this solution would increase the height of the drawer system from 78" to 104", making reaching an even bigger issue while still not addressing many of the other problems. The next idea was a single pole pivot design that would be open and give easier access to the discs, lessen the force required to pull them out, and eliminate pinch points. The problem with this solution was that it would be hard to stabilize the single pole holding all of the discs, and it would cost a lot to do so.

    Thus, an improved storage system and method is needed the storage of the low pressure turbine (LPT) discs of relatively large turbofan engines during the manufacturing process.

BRIEF DES...