Brewing device for capsule with closure mechanism of variable transmission ratio

摘要

A brewing device (1) for the brewing of a capsule containing a beverage ingredient comprises:
- a main frame (2),
- a first capsule holding part (5),
- a second capsule holding part (6) for at least partially holding the capsule; said capsule holding part being mobile relative to the first capsule holding part,
- water supply means connected to second holding part (6) configured to injected water in the said part.
The water supply means comprises a length compensatory tube portion (38) which is fixed relatively to the frame whereas the second holding part (6) can move with respect to said compensatory tube portion (38).