FLAPPER

PROBLEM TO BE SOLVED: To provide a flapper capable of preventing breakage of a shaft part even by a shock of a commodity passing through a commodity storage passage. SOLUTION: In this flapper, a first shaft part 321 and a second shaft part 331 are formed by cylindrically bending side parts extending in orthogonal directions from side edges of a first support part 32 and a second support part 33 such that cross sections of boundary portions to the support parts 32, 33 become maximum on both the sides from the first support part 32 and the second support part 33, thereby, sufficient strength can be obtained to prevent the breakage of the flapper by the shock of the commodity passing through the commodity storage passage. COPYRIGHT: (C)2006,JPO&NCIPI