Brewing unit for electric coffee machine, has sleeve and plunger unit which are moved together to compress ground coffee beans, during the time when hot water is fed in

摘要

An unsealed chamber is formed between the plunger (63) of a plunger unit (6) and clamp (42) of a water feeder, when the sleeve (5) is in specific position and ground coffee bean is fed to opening (514) of the sleeve. The sleeve and plunger unit are moved together to compress the coffee, and hot water from an outlet (421) is fed to the compressed space. The plunger is moved from the clamp to form space for automatic dropping of brewed coffee.