Abstract
In recent years, display devices are being replaced by flat-panel displays such as LCD and plasma displays. Safe transportation methods are required because the glass panels used in the displays are very easily damaged. Problems, such as contamination or damage of the contact area due to stress concentration, during contact-type transportation using, a roller or vacuum pad, have been reported . In order to solve the problems, we focus on a levitation transportation device using swirling flow for transporting objects. A problem has been found in that the levitation precision worsen when the tip of the object passes through the swirl flow generator. In this paper, we experimentally confirmed the cause by measuring the pressure distribution in one swirling flow generator (vortex cup).