Original Publication Date: 2002-Oct-30
Included in the Prior Art Database: 2003-Jun-21
Subject: Adjustable Track Point Disclosed is a mechanism for "Height adjustable" TrackPoint which is a pointing device loaded on a lap-top PC. The device has height adjustable function and up-down function working with lap-top PC's top cover movement. When laptop PC isn't in use, the track point stays down, then once the top cover opened up, its head is popped up in order to prevent clashing the track point and LCD surface in a laptop PC top cover. In addition, height of the track point is adjustable as user comfortable with "height adjust mechanism". Mechanism to achieve the invention This trackpoint device has 2 functions as follows. In short, both of them are achieved by "thread on the shaft like a screw". 1 adjustment height as user comfortable. "Height Adjust Mechanism" The track point has a shaft which has threads like a screw and small projections as rotation stopper shown in Fig.1. Because the shaft fixing dial hold the small stopper on the shaft, the shaft doesn't rotate when the track point is in use. To adjust height, the shaft is rotated with rotating the fixing dial, then its shaft comes up (or down) by the threads on the shaft and inside of the hole on the small pinion.