Abstract
This paper describes an effect of particle size in vacuum gripper imitating octopus sucker on adsorption performance. The particle in thin elastomer sack has Jamming transfer effect. It has advantage that the absorption area is fixed, since the sack behaves the solid substance under the vacuuming in sack. The relationship between particle size and gripper size is influenced the formation of adsorption area. When the particle size was larger than the distance between suckers, the adsorption success rate is decrease because the sucker was compressed by particles. Because of the friction between particle, the pressing force was large when the particle was too small. The suitable particle size to this gripper was around 0.8 mm.
