| 摘要 |
A brewer unit for a hot beverage dispensing machine includes an upper cylinder (30) for receiving and containing hot water and a brewing material and having an open lower end, a coaxial lower cylinder (40) having an open upper end, a filter unit (43) mounted over the upper end of said lower cylinder (40) preventing passage of the brewing material therethrough, and a reciprocal piston (41) fitted in the lower cylinder (40) for creating a vacuum therein to suck freshly made beverage through the filter unit (43). A drive shaft (14) makes the piston (41) reciprocate and also drives a first cam mechanism for lifting the upper cylinder (30) from the filter unit (43) and a second cam mechanism for moving a scraper unit (5) over the filter unit (43) to discharge spent brewing material therefrom. |
