Grinding unit for a coffee grinding apparatus

Details Grinding unit for a coffee grinding apparatus Grinding unit for a coffee grinding apparatus

A - Human Necessities

47

J

A47J 42/02 (2006.01) A47J 42/06 (2006.01) A47J 42/46 (2006.01)

Patent

CA 2150064

The grinding unit comprises a grinding rotor unit, incorpo- rating a inlet screw member, a conical grinding tool member, a delivery dish member and a gear unit. A dog clutch is operation- ally inserted between the delivery dish member and the gear unit. A safety clutch is operationally inserted between delivery dish member and grinding tool which limits the torque to be transmitted. The safety clutch is provided with ball members lo- cated in axially running bores of the delivery dish member and being axially displaceable in these bores. The ball members are forced against the front face of the grinding tool and partially engage apertures provided therein under the influence of spring members assigned to each ball member. The delivery dish member is provided at its surface which faces the grinding tool member with a metallic disc member in which are located the mouths of axial bores containing the spring pressure loaded ball members. The dog clutch comprises a plurality of elastic dampening mem- bers inserted between the claw members of the dog clutch.

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