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Browse Prior Art Database

Weighted Module Free Fall Damper

IP.com Disclosure Number: IPCOM000052138D
Original Publication Date: 1981-May-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Miller, WC: AUTHOR

Abstract

In the smaller, low-cost data processing systems reaching today's marke it may be appropriate for customers, given proper guidance and documentation, to perform certain diagnostics and part replacement themselves. Modularized construction would be utilized to facilitate this type of corrective customer action.

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Weighted Module Free Fall Damper

In the smaller, low-cost data processing systems reaching today's marke it may be appropriate for customers, given proper guidance and documentation, to perform certain diagnostics and part replacement themselves. Modularized construction would be utilized to facilitate this type of corrective customer action.

Given this possibility, it may then become necessary for a customer, and almost certainly for a service engineer, to replace a module 10 which might weigh in the order of ten to twelve pounds or more. If dropped during its insertion or removal, the module 10 and/or the surrounding area could become damaged. A damper to prevent module free fall would therefore be suitable for use in data processing equipment intended for such a market.

It is intended to obtain such capability by providing one-way roller clutches 12, which are spring mounted using leaf springs 14, as shown in the drawing. The roller clutches 12, which are normally urged into the path of a descending module 10 by the leaf springs 14, are adapted so that they will tend to lock and thereby provide sliding resistance when the module 10 moves in the plugging direction 16 toward or against the stop or base 18. The roller clutches 12 will, however, turn freely when the module 10 is lifted away from the stop or base 18.

The sliding resistance to free fall is further enhanced by the use of frictional material 20, which can be taped to or formed on the side of the modul...