Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2016059563 - GROUPE D'INFUSION POUR MACHINES POUR LA DISTRIBUTION DE BOISSONS SOUS LA FORME D'UNE INFUSION

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS

1. An infusion group (10) for machines for the dispensing of beverages in the form of infusion, said infusion group (10) comprising:

i) a capsule-holder (30) configured to receive a capsule (C) for the preparation of a beverage in the form of an infusion,

ii) a dispensing head (40) adapted to cooperate with said capsule-holder (30) to form a chamber for the infusion of said capsule (C), said dispensing head comprising a dispensing channel (42),

iii) a perforation disc (50) and an associated supporting member (51), the latter being mounted on said dispensing head (40),

wherein

said dispensing head (40) also comprises a discharge channel (43), said discharge channel (43) being arranged upstream of said dispensing channel (42) with respect to a longitudinal direction (L) along which a beverage is dispensed,

the perforation disc (50) and its supporting member (51 ) are movable relative to the dispensing head (40) between a dispensing position and a rest position, the configuration of the dispensing head (40) being such that the discharge channel (43) is closed when the perforation disc (50) and the supporting member (51 ) are in the dispensing position and open when they are in the rest position.

2. An infusion group (10) according to claim 1 , wherein said capsule-holder (30) is movable along said longitudinal direction (L) at least between an approaching position wherein it is close to the dispensing head (40) and a closed position wherein it abuts the dispensing head (40) and forms said infusion chamber therewith.

3. An infusion group (10) according to claim 2, wherein said movement of the perforation disc (50) and the supporting member (51 ) relative to the dispensing head (40) is driven by the movement of the capsule-holder (30).

4. An infusion group (10) according to claim 2 or 3, wherein the capsule-holder (30) is mounted on an infusion head (20) slidable along said longitudinal direction (L) and wherein said capsule-holder (30) is movable relative to said infusion head (20) between said approaching and closed positions.

5. An infusion group (10) according to claim 4, wherein the capsule-holder (30) comprises a hollow body (33) that protrudes therefrom in the longitudinal direction (L) towards the infusion head (20), said hollow body (33) being slidably fitted in a cavity (24) formed in the infusion head (20) wherein the outlet of a conduit for the supply (22) of an infusion liquid is arranged, and wherein the capsule-holder (30) further comprises a gasket (36) having a substantially flat annular shape, said gasket being fixed between the capsule holder (30) and the hollow body (33), the capsule-holder (30) being mounted on the infusion head (20) by fastening said gasket (36) with a flange (25), whereby the cavity (24) formed in the infusion head (20) is sealed by the gasket (36).

6. An infusion group (10) according to claim 5, wherein the hollow body (33) has a through opening at each end and is restrained to the capsule-holder (30) coaxially with an inlet opening (32) for the infusion liquid by way of a screw (34), said screw being axially hollow, and wherein the cavities of the hollow body (33) and the screw (34) together form a longitudinal channel that allows feeding of the infusion liquid from the supply conduit (22) of the infusion head (20) to the capsule-holder (30).

7. An infusion group (10) according to claim 5 or 6, wherein a sealing element (35) is slidably fitted inside the hollow body (33), said sealing element (35) being urged by resilient means against the opening of the hollow body (33) facing the infusion head (20), said resilient means being configured to yield in the longitudinal direction (L) beyond a predetemiined pressure threshold so as to allow passage of a flow of infusion liquid.

8. An infusion group (10) according to any one of claims 4 to 7, further comprising closing means, said closing means being operatively connected to said infusion head (20).

9. An infusion group (10) according to claim 8, wherein said closing means comprise a toggle linkage, said toggle linkage being made up of a lever (1 1 ) pivoted on the infusion group and of a connecting rod (12) connected between the lever and the infusion head (20), the configuration of said linkage being such that in the closed position of the infusion group the capsule-holder is located in proximity of the dispensing head (40) but is not in contact therewith.

10. An infusion group (10) according to any one of claims 1 to 9, wherein the perforation disc (50) and its supporting member (51 ) are slidably housed in the longitudinal direction (L) in a cavity (41 ) formed in the dispensing head (40).

1 1. An infusion group (10) according to claim 10, wherein the supporting member (51 ) comprises a cylindrical portion (51 1 ) that is hollow and open at its ends so as to allow a flow of a beverage extracted from the capsule (C) towards the dispensing channel (42), and wherein said hollow cylindrical portion (51 1) is slidably housed in a seat (41 1 ) having a corresponding shape formed in the cavity (41 ) of the dispensing head (40).

12. An infusion group (10) according to claim 1 1 , wherein the supporting member (51) of the perforation disc (50) is urged towards the capsule-holder (30) by resilient means arranged in the cavity (41 ) of the dispensing head (40).

13. An infusion group (10) according to claim 12, wherein a sealing element (52) is fitted in the hollow cylindrical portion (51 1), said sealing element (52) being urged against an opening for the passage of a beverage extracted from the capsule (C) by way of resilient means (53).

14. An infusion group (10) according to any one of claims 10 to 12, wherein the inlet of the discharge channel (43) of the dispensing head (40) is formed in the seat (41 1 ) wherein the hollow cylindrical portion (51 1 ) of the supporting member (51 ) of the perforation disc (50) is slidably fitted.

15. An infusion group (10) according to any one of claims 1 1 to 14, wherein the dispensing head (40) comprises a sealing element (44) arranged on the bottom of the seat (41 1) intended to receive in abutment the portion (51 1 ) of the supporting member (51 ) of the perforation disc (50).

16. An infusion group (10) according to any one of claims 1 to 15, wherein the dispensing head (40) further comprises a pair of guides (61 , 62) configured to receive a capsule (C) in a vertical direction (V) perpendicular to the longitudinal direction (L), and to hold it during the closing phase of the infusion group (10).

17. An infusion group (10) according to claim 16, wherein said guides (61 , 62) are restrained to the dispensing head (40) proximate to the perforation disk (50) and are arranged symmetrically with respect to a longitudinal symmetry plane of the infusion

group (10).

18. An infusion group (10) according to claim 16 or 17, wherein the guides (61 , 62) comprise respective grooves (61 1 , 621 ) configured to receive a capsule (C) in correspondence to its flange, as well as respective open top ends (612, 622) suitable for allowing insertion of the capsule (C) and respective closed ends (613, 623) suitable to limit its insertion stroke in the vertical direction (V).

19. An infusion group (10) according to any one of claims 16 to 18, wherein the guides (61 , 62) are pivotally restrained to the dispensing head (40) about respective axes arranged in the vertical direction (V), and wherein the axis of each guide (61 , 62) is associated with a torsion spring that urges the respective guide in a closed position, or retaining position, of the capsule (C), the arrangement of the springs being such that the guides (61 , 62) are urged to rotate towards each other.

20. An infusion group (10) according to claim 19, wherein the stroke of the capsule-holder (30) in the longitudinal direction (L) terminates at a position between the guides (61 , 62) and the surface of the dispensing head (40) on which the perforation disc (50) is located.

21. A machine for dispensing beverages in the form of an infusion, characterized by comprising an infusion group (10) according to any one of claims 1 to 20.

22. A machine according to claim 21 , wherein the discharge channel (43) of the dispensing head (40) of the infusion group (10) is in fluid communication with a collection tray adapted to receive used capsules (C) discharged from the infusion group (10).