| 摘要 |
PROBLEM TO BE SOLVED: To solve problems for example, an oscillation selection plate is formed by forming small irregularities for oscillation selection on whole plate surface by an embossment processing method or the like, and a material of the oscillation selection plate is mainly an aluminum plate material for achieving light weight, and when a selection discharge side part of the oscillation selection plate is folded downward, the discharge end edge part is formed by irregular formation in a waveform edge or a burr state, and when forming the folded part, the bent piece part is easily separated from the selection discharge side part, so that formation of the bent piece part becomes difficult.SOLUTION: A flat surface discharge surface 4 on which no irregular surface 3 is formed, is formed with optional width along a selection discharge side part 2 of an oscillation selection plate 1 for oscillating while receiving hulled rice and for selecting brown rice. |
