In a set of vibrating quasi-two-dimensional containers with the right-hand sidewall bent inward, three new segregation pattes have been identified experimentally including a Two-Side segregation Patte, a Left-hand Side segregation Patte and a patte where big particles aggregate to the upper left part of the container. In a container with small bending degree, either the two-side segregation patte or the left-hand side segregation patte is stable, which is determined by the initial distribution of particles.