Coffee brew head unit with closure devices

摘要

There is a filter plate (3) in the bottom of the coffee accommodation container (1), with coffee outlet apertures, and it has a reinforcement ring (2) made of a stable material, preferably metal, finely embedded in the upper edge area (5) of the side walls. The reinforcement ring has formations (14), which are component parts of the closure devices (12). The reinforcement ring is embedded in the edge area through the injection moulding process of the coffee accommodation container. The closure devices (12) are formed as radially extending projections from the outer walling (5-7) of the reinforcement ring (2), which are component parts of a bayonet-type closure with the brew unit of the coffee machine.