Coffee machine suitable for dispensing into cups of different heights
The coffee machine ( 1 ) comprises a resting surface ( 6 ) for cups ( 7, 7 ′) and a hydraulic circuit having in cascade a pump, a boiler, an infusion head ( 3 ) and a filter holder cup ( 4 ) removably engaged with the infusion head ( 3 ), also being provided a mobile support structure ( 8 ) for supporting the assembly formed by the infusion head ( 3 ) and the filter holder cup ( 4 ), and a movement means ( 17 ) for moving the support structure ( 8 ) between a plurality of positions to which different distances of the filter holder cup ( 4 ) from the resting surface ( 6 ) correspond.
1. A coffee machine ( 1 ) comprising a resting surface ( 6 ) for cups ( 7 , 7 ′) and a hydraulic circuit having in cascade a pump, a boiler, an infusion head ( 3 ) and a filter holder cup ( 4 ) removably engaged with said infusion head ( 3 ), further comprising a mobile support structure ( 8 ) for supporting an assembly formed by said infusion head ( 3 ) and said filter holder cup ( 4 ), and means ( 17 ) for moving said support structure ( 8 ) between a plurality of positions to which different distances of said filter holder cup ( 4 ) from said resting surface ( 6 ) correspond, wherein said movement means ( 17 ) comprises:
a rotary motor ( 19 ); and
a mechanical transmission adapted for the transformation of a rotation of said rotary motor ( 19 ) into a translation of said support structure ( 8 ) along a translation guide, where the mechanical transmission comprises an endless screw ( 23 ) engaged in a female thread ( 22 ), where the endless screw ( 23 ) is fixed and the female thread ( 22 ) is activated in rotation by said rotary motor ( 19 ).
2. The coffee machine ( 1 ) according to claim 1 , wherein said assembly is movable integrally with said support structure ( 8 ).
3. The coffee machine ( 1 ) according to claim 1 , wherein said translation guide is configured and arranged for a translation of said support structure ( 8 ) in an orthogonal direction to said resting surface ( 6 ).
4. The coffee machine ( 1 ) according to claim 3 , wherein said translation guide comprises a plurality of guide columns ( 24 ) in which guide holes ( 25 ) are engaged, afforded in said support structure ( 8 ).
5. The coffee machine ( 1 ) according to claim 1 , wherein said rotary motor ( 19 ) is supported by said support structure ( 8 ) in an integral way in translation along said translation guide.
6. The coffee machine ( 1 ) according to claim 1 , wherein said female thread ( 22 ) and said endless screw ( 23 ) have an axis orthogonal to said resting surface ( 6 ).
7. The coffee machine ( 1 ) according to claim 1 , wherein said support structure ( 8 ) supporting said translation guide and said endless screw ( 23 ) is housed in a box body ( 26 ).
8. The coffee machine ( 1 ) according to claim 1 , further comprising a manual control ( 30 ) for regulating a position of said support structure.
9. The coffee machine ( 1 ) according to claim 1 , wherein said infusion head ( 3 ) has a flexible hose for hydraulic connection to said boiler.
10. The coffee machine ( 1 ) according to claim 1 , further comprising an assemblable frame ( 2 ) formed by structurally independent modules rigidly connected to each other.