Patent ID: 8016287
Filing Date: 2011-09-13
Classification: B65H

Abstract:
1. A sheet stacking device for stacking conveyed sheets, comprising: a stacking surface on which the sheets are stacked; a plurality of projections that project from the stacking surface, wherein the projections extend generally in a travel direction of the sheets, which is a direction in which the sheets travel when entering the sheet stacking device, the projections include outer projections and inner projections, the inner projections are located between the outer projections, a projecting height of the inner projections from the stacking surface is greater than that of the outer projections, a space between the inner projections increases in the travel direction over a first length of the inner projections, a space between the inner projections remains constant in a travel direction over a second length of the inner projections, and the first length of the inner projections is upstream of the second length of the inner projections.