Browse Prior Art Database

Personal Computer Cover Alignment Tabs

IP.com Disclosure Number: IPCOM000036525D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Neer, JH: AUTHOR [+2]

Abstract

This article describes alignment tabs for aligning a personal computer (PC) front/top cover assembly to the eject button of a diskette drive which has already been installed in the base assembly of the PC.

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Personal Computer Cover Alignment Tabs

This article describes alignment tabs for aligning a personal computer (PC) front/top cover assembly to the eject button of a diskette drive which has already been installed in the base assembly of the PC.

Typical alignment techniques are not able to compensate for the tolerance accumulations in the base, support structure, drive and cover assemblies, plus the horizontal "float" of the drive/slide assembly to the support structure.

Preliminary alignment is provided by side channel/guide rails which run from front to rear on the cover assembly and in the base (not shown). This brings the cover assembly into a known range in relation to the base prior to the final alignment provided by the alignment tabs disclosed herein.

Drive bezels are typically attached to the face of the diskette drive in order to maintain the necessary alignment between them for the diskette slot, the light- emitting diode (LED), and a diskette eject button. This PC design is such that the drive and/or blank bezel(s) can be attached to the front cover. This provides maximum flexibility for use of the drive positions available and for ease of serviceability. As a result, misalignment must be reconciled. A two-stage design is disclosed herein to achieve the alignment required. It has been incorporated into the drive bezel itself.

Referring to the drawing which shows the drive bezel and drive in perspective, two course alignment tabs 1 are added to the drive side of the molded drive bezel. The tabs 1 extend out towards the drive for a distance greater than the distance which the drive eject button 2 extends ou...