632 Separation and Transportation of Works Using Elliptical Vibration : Separation by Length of Gap

Abstract

When the vertical vibration of ellipitical vibration is larger than 1.0G, gappy works jump and the characteristics of transportation change considerably. On the other hand, flat works don't jump and the characteristics change little. This phenomenon allows us to separate gappy works from flat one. It has been understood the cause that flat works don't jump in the condition to exceed the jumping limit is negative pressure on contact face by measuring the pressure fluctuation between table and flat work. Moreover, it has been understood that volume of negative pressure depends on length of gap.