Browse Prior Art Database

FASTENER-LESS NLX PLANAR LATCHING CAM

IP.com Disclosure Number: IPCOM000013043D
Original Publication Date: 1999-Nov-01
Included in the Prior Art Database: 2003-Jun-12

Publishing Venue

IBM

Related People

Authors:
Dean Herring William Otto

Abstract

Disclosed is a design for fastener-less attachment of a planar latching cam to a sheet metal chassis. The planar latching cam is primarily used to seat a mother board planar in a personal computer into a daughter riser card. Attachments of the latch prior to this disclosure have used some form of screw, shoulder or otherwise. The disclosed design modifies the bottom of the latch to a keyed configuration that matches with the hold geometry in the sheet metal chassis. The latch is put into place over the sheet metal hole geometry outside of its working position and rotated into its working position. As the latch is rotated into its working position a portion of the keyed feature on the bottom of it goes over a snap feature on the sheet metal. Once the snap feature is cleared the latch cannot be rotated back to the original load position. The latch is now secure in the sheet metal chassis. See the following figures for visual cognizance. 1