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Browse Prior Art Database

Height Leadscrew

IP.com Disclosure Number: IPCOM000039760D
Original Publication Date: 1987-Aug-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Rachui, RA [+details]

Abstract

A single height adjustment device through which tilt on a cathode ray tube (CRT) is achieved is described and illustrated in the figure. A leadscrew 1 is rigidly attached to the underside of the structure 2 to be raised. The leadscrew passes through a spacer 3 and into a guidance cavity below. A spring 4 which surrounds the leadscrew 1 provides constant pressure on the spacer. The spring and spacer are housed so the spacer is spring loaded. Star-shaped item 5, which surrounds the leadscrew 1, is free to pivot about the leadscrew by way of the leadscrew's spiral construction. The weight provided by the structure 2 pressurizes the star 5 into the spacer 3. The spring 4 force against the spacer is greater than the structure weight whereby the spacer does not rotate.