PROBLEM TO BE SOLVED: To provide a food material heat insulation mechanism capable of maintaining uniform temperature in a body and retaining heat of food materials without generating dew condensation or the like in a food material dish-up device.SOLUTION: There is provided a food material heat insulation mechanism of a food material dish-up device having a food material hopper 12, a food material transportation part 2 and a decomposition roller, a hopper body 17 for covering the food material hopper 12, an opening and closing lid part 17a for closing an upper surface of the hopper body and a cylindrical body 18 for covering the food transportation part are arranged, an opening 6 for dropping and supplying rice to the decomposition roller is arranged on a fixed bottom plate 18a of the cylindrical body, innermost parts of the hopper body, the opening and closing lid part and the cylindrical body are formed by a metal material, planar heaters are jointed to whole area in an outer face side of the metal material of the hopper body, the opening and closing lid part and the cylindrical body respectively and whole area in the outer face side of each planar heater is covered by a thermal insulation material.SELECTED DRAWING: Figure 2【課題】 食材盛付装置において、筐体内部を均等な温度に維持することができ、結露等を生ずることなく、食材を保温し得る食材保温機構を提供すること。【解決手段】 食材ホッパー１２と、食材搬送部２と、解しローラを具備する食材盛付装置の食材保温機構であって、食材ホッパー１２を被覆するホッパー筐体１７と、ホッパー筐体上面を閉鎖する開閉蓋部１７ａと、食材搬送部を被覆する円筒筐体１８とを設け、上記円筒筐体の固定底板１８ａに解しローラに飯を落下供給する開口６を設け、ホッパー筐体、開閉蓋部及び円筒筐体は最内側を金属材料にて形成し、ホッパー筐体、開閉蓋部及び円筒筐体の金属材料の外面側の全域に各々面状ヒータを接合し、各面状ヒータの外面側の全域を断熱材料にて被覆するように構成する。【選択図】 図２
