Mixing device with closure element

A mixing device having a container rotatable about a container axis for receiving mixing material, with an emptying opening being arranged in the bottom thereof, a rotatable mixing tool arranged in the interior of the container, and a closure element for closing the emptying opening,

• wherein the closure element can be pivoted about a pivot axis for opening and closing the emptying opening,
• wherein the closure element has an inner surface which with the emptying opening closed is arranged within the container, an outer surface which with the emptying opening closed is arranged outside the container, and an edge surface which with the emptying opening closed is arranged opposite an edge surface of the emptying opening,
• wherein the closure element, the emptying opening and the pivot axis are of such a configuration and arrangement that a point arranged furthest away from the pivot axis on the inner surface or the edge surface of the closure element describes a circle in the pivotal movement,
• wherein the closure element is arranged within the circle and the edge surfaces of the emptying opening are arranged outside the circle,
• wherein the emptying opening and the closure element have mutually corresponding edge surfaces which come into contact with each other when the closure element is positioned in the emptying opening,
• wherein the closure element ends flush with the bottom so that a flat bottom surface is afforded when the closure element is positioned in the emptying opening, and
• wherein the edge surfaces of the closure element are of a curved configuration such that they lie on a notional sphere and the centre point of the notional sphere lies on the pivot axis.

A mixing device having a container rotatable about a container axis for receiving mixing material, with an emptying opening being arranged in the bottom thereof, a rotatable mixing tool arranged in the interior of the container, and a closure element for closing the emptying opening,

• wherein the closure element can be pivoted about a pivot axis for opening and closing the emptying opening,
• wherein the closure element has an inner surface which with the emptying opening closed is arranged within the container, an outer surface which with the emptying opening closed is arranged outside the container, and an edge surface which with the emptying opening closed is arranged opposite an edge surface of the emptying opening,
• wherein the closure element, the emptying opening and the pivot axis are of such a configuration and arrangement that a point arranged furthest away from the pivot axis on the inner surface or the edge surface of the closure element describes a circle in the pivotal movement,
• wherein the closure element is arranged within the circle and the edge surfaces of the emptying opening are arranged outside the circle,
• wherein the emptying opening and the closure element have mutually corresponding edge surfaces which come into contact with each other when the closure element is positioned in the emptying opening,
• wherein the closure element ends flush with the bottom so that a flat bottom surface is afforded when the closure element is positioned in the emptying opening, and
• wherein the pivot axis of the closure element is arranged below the container and/or perpendicular to the container axis.