| 摘要 |
<p>A brewing head of a hot beverage machine includes a fixed brewing chamber part, and a movable brewing chamber part which is movable in relation to the fixed brewing chamber part to define a brewing chamber for receiving a substrate capsule. The fixed and movable brewing chamber parts are closed by a locking system to thereby form the brewing chamber, and a seal is provided for pressure-tight sealing of one of the two brewing chamber parts and the substrate capsule during beverage preparation. The brewing chambers has three operating positions involving an opening position for loading the brewing chamber, a partially closed position in which the brewing chamber is closed and the seal is detensioned, and a closed position in which the brewing chamber is likewise closed and the seal is tensioned.</p> |
