< Topic >It is difficult to break down, the coffee bean burns without nonuniformity the the machine it offers.SolutionsRoasting drum unit it has with 100 and rotary Drive unit 200. As for roasting drum unit, one end aperture with the hollow circular cylinder surface 111 which centers axis A, the medial axis you surround 120 where the roasting container one end is locked by the other end of 110 which the other end closes and the roasting container and extends according to axis and the aperture and hollow circular cylinder section 114 of line pair name and, you possess vis-a-vis axis. Rotary Drive unit 200, axis focusing on freely the container support framework 210 which revolution possibly is supported and gear support framework 230 and, has with the axis of the roasting container as transverse. The container support framework, the hollow circular cylinder section one end side roller 211 of 1 pair revolution possibly it supports and the medial axis has with the other end side roller 212 of 1 pair revolution possibly it supports, is provided the container support framework and the gear support framework across interval, only decrease through the heat insulated structure body 220 which prevents relative displacement, is concatenated conduction of heat.< Choice figure >Drawing 1【課題】故障しにくく、コーヒー豆を焼き斑なく焙煎できる焙煎機を提供する。【解決手段】焙焼ドラムユニット100と回転駆動ユニット200とを備える。焙焼ドラムユニットは、軸線Aを中心とする中空円筒面111をもち一端が開口し他端が閉じた焙焼容器110と、焙焼容器の他端に一端が固定され軸線に沿って延びる中心軸120と、開口を囲み軸線に対して線対称の中空円筒部114と、を有する。回転駆動ユニット200は、焙焼容器の軸線を横向きにして軸線を中心に自由に回転可能に支持する容器支持枠210と、歯車支持枠230と、を有する。容器支持枠は、中空円筒部を回転可能に支持する1対の一端側ローラ211と、中心軸を回転可能に支持する1対の他端側ローラ212とを有し、容器支持枠と歯車支持枠とは間隔を隔てて設けられ、熱伝導を低減しかつ相対的な変位を防止する断熱構造体220を介して連結されている。【選択図】図1
