| 摘要 |
A dosage-dispensing device for substances in powder- or paste form is equipped with a supply container and with a dosage-dispensing head that is connected or connectable to the supply container and has a housing with an outlet orifice of circular cross-section. The dosage-dispensing head further has a delivery- and closure element, wherein the outlet orifice and the delivery- and closure element are arranged on the central lengthwise axis of the dosage-dispensing head, and the delivery- and closure element is designed to be rotatable about the central lengthwise axis in relation to the housing and to be capable of translatory displacement along the central lengthwise axis, so that the delivery- and closure element can be moved out of, as well as into, the outlet orifice. The delivery- and closure element, in its basic configuration is of a cylindrical shape and has a cylindrical closure portion that serves to close off the outlet orifice and, adjacent to the closure portion, a delivery portion that serves to deliver the substance to be dispensed. When the dosage-dispensing device is in its operating state, the delivery portion is located in the lower part of the delivery- and closure element. Said lower part has an end surface that is inclined at an oblique angle relative to a plane that extends orthogonal to the central lengthwise axis, wherein the end surface at its lowest point forms a tip that coincides with a point on the cylindrical surface, and the topmost point likewise coincides with a point on the cylindrical surface.
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