| 摘要 |
PURPOSE:To improve the sound insulation effect of an impact noise at the time of pulverizing coffee beams by partitioning a beam containing chamber and a pulverizing chamber by an inner cover, and forming a double vessel structure. CONSTITUTION:A main body cover 18 and the upper cover 11 are opened, coffee beans of a prescribed quantity are put into a beam containing chamber 10, and thereafter, when the upper cover 11 and the main body cover 18 are closed and an electric conduction is executed, a main shaft of a driving device 2 of a motor, etc., rotates, and the rotation is transmitted to a cutter 4 through a connecting shaft 3 fixed thereto. As for the coffee beans, only a small quantity drops down into a pulverizing chamber 8 from a through-hole 9 of an inner cover 7, and is pulverized by a rotation of the cutter 4. The pulverized powder is blown away to a filtering chamber 12 provided in the side direction by rotational force of the cutter 4, and waits for extraction executed by dripping down hot water from a discharge port 16. When the pulverization in the pulverizing chamber 18 is finished, the coffee beams stored in the bean containing chamber 10 are supplied successively by the inclined surface 19 of the bottom face of the inner cover until they are gone, and the pulverization is repeated. |
