PROBLEM TO BE SOLVED: To provide a cooked rice forming device having a simple forming mechanism without loading on cooked rice, and good maintenance ability.SOLUTION: This cooked rice forming device has such a mechanism that a frame mold 50a forming boiled rice R into a cooked rice forming object O of a triangle rice ball shape is set on the peripheral surface of a pair of molding rollers 41 and 42 opposedly arranged to cross nearly at right angles in the feed direction of the cooked rice R, and the cooked rice is compression-formed in the inside of the frame mold 50a through inserting the cooked rice R into each of the molding rollers 41 and 42.COPYRIGHT: (C)2006,JPO&NCIPI【課題】 米飯に負荷をかけることのないシンプルな成型機構であってメンテナンス性がよい米飯成型装置を提供する。【解決手段】 米飯Rの送り方向に対してほぼ直交するように対向配置された1対の成型ローラ41,42の外周面に米飯Rを三角おにぎり形状の米飯成型物Oに成型する型枠50aを設け、各成型ローラ41,42にて米飯Rを挟み込むことにより、型枠50a、50aの内部で米飯を圧縮成型する。【選択図】 図10