ITVB20000001U1 - AUTOMATIC HYDRAULIC OPERATING GROUP PARTICULARLY SUITABLE FOR THE PRODUCTION OF ESPRESSO COFFEE AND OTHER EVENTUAL BEVERAGES - Google Patents

Description

Description of a utility model having as a title

HYDRAULIC GROUP FOR AUTOMATIC OPERATION PARTICULARLY SUITABLE FOR THE PRODUCTION OF ESPRESSO COFFEE AND BEVERAGES, OTHER POSSIBLE

The subject of this utility model is a group with hydraulic operation, particularly suitable for the preparation of beverages, such as espresso coffee and other possible ones

The purpose of the invention is to facilitate the preparation of the beverage by avoiding to perform manually, or not, all the operations that must be done with traditional machines, namely coffee grinding, ground coffee loading, ground coffee compression, hot water dispensing, beverage dispensing. , used coffee unloading The known technique offers us some solutions of groups for coffee machines that always include common details, such as piston on the dispensing side, infusion chamber, used coffee extraction piston, electromechanical pump, electromechanical gearmotor group necessary to move the group itself.

The group just in question of a new conception, despite having all the details described above, does not have the electromechanical group necessary for the movement of the group itself, as the movement takes place thanks to the hydraulic pressure generated by the electromagnetic pump of which all espresso coffee machines are equipped

This group is composed as follows, see TAV A B C two support sides A joined together with tie rods and spacers B which make the structure integral and compact, the two sides A have obtained in a well-determined position suitable guide slots C, necessary to guide the infusion chamber holder piston D during operation

Said piston D is equipped with adequate watertight gaskets which guarantee the operation of the piston in chamber E, furthermore on piston D there is a chute F for discharging the used coffee, solidly bound to the piston itself and bringing appropriate strikers G to an adequate position, see TAV D , which engaging with guide slots C guarantee the predetermined path of piston D

In the upper part there is a dispensing piston H equipped with a suitable filter, sealing gasket and dispensing spout, in addition a scraper unit consisting of a scraping spatula I, with its tangs Y, see TAV D, sliding shafts S with relative retaining springs Q, articulated support T that follows the movement of the scraper I during use Adequate notches M engage the tangs Y of the scraper I, forcing them to follow the specific path

On the bottom of chamber E there are a central nozzle L for the passage of the hot water necessary for the production of the beverage see TAV B and C, nozzle L1 necessary for sending the water under pressure to the lower part of chamber E, nozzle 12 necessary for delivery of pressurized water to the upper part of chamber E thus ensuring the operation of piston D

The L1 and L2 vents also function as a drain for the water itself

The piston D and chamber E group is fixed and hinged on the axis of the vent L, giving the group itself the possibility to oscillate during operation

The operation of this group occurs as follows, see TAV B E F

By sending pressurized water through nozzle L1 to chamber E, thanks to an electromechanical pump, the same moves piston D upwards, bringing it to position X see TAV E, where the ground coffee is automatically loaded in the infusion chamber of the piston D, see direction of arrow

Once the ground coffee has been loaded, the hydraulic pressure brings the piston D to position X1 see TAV F, optimally compressing the ground coffee against the dispensing piston H

Hot water is automatically sent through nozzle L which, passing through tube O and ejector piston P, penetrates and passes through ground coffee in the infusion chamber of piston D, passes through piston H on the delivery side and exits in the form of a coffee drink from the dispensing spout

Once the beverage has been dispensed, pressurized water is sent into port L2 which, entering the upper part of chamber E, pushes piston D downwards, causing the water contained in the lower part of chamber E to escape through port L1

In the up and down movement of the piston D, the scraper I performs adequate displacement necessary for the expulsion from the used coffee, in fact when the piston D is in the lower position see TAV B, the scraper I shaves the left part of the piston D, while the piston D rises upwards the scraping blade I appears to be engaged with its tangs Y in adequate notches M which are located on sides A and which move the blade to the right of piston D see TAV E

Adequate springs Q keep the blade I well adherent to the upper part of piston D When piston D returns to its initial position, see TAV B, the reaction springs R return the scraper blade to the left side of piston D thus expelling the used coffee which at the same time, thanks to an ejector piston, has been expelled from the infusion chamber of piston D Said group is easily applicable and therefore removable thanks to adequate screws Z, see TAV C Adequate spring U on extraction piston P, has the task of keep it in an adequate position

Claims (1)

Claims 1) Hydraulic unit for automatic operation particularly suitable for the production of espresso coffee and other eventual beverages, characterized by the fact of having a hydraulic operation thanks to piston and piston chamber 2) Hydraulic unit for automatic operation as above, characterized by having on the two supporting sides adequate slots for sliding the piston with infusion chamber 3) Hydraulic unit for automatic operation as above, characterized by having the possibility to swing the piston during operation, adapting it to the needs of the operation itself 4) Hydraulic unit for automatic operation as above, characterized by the fact that it has incorporated on the head of the piston with the infusion chamber adequate checks which, engaging in suitable slots obtained on the supporting sides, guarantee correct displacement of the piston itself 5) Hydraulic unit for automatic operation as above, characterized by the fact of having an adequate tube which, cooperating with the extraction piston rod, guarantees the passage of water in any position of the piston itself 6) Hydraulic unit for automatic operation as above, characterized by the fact that it can be easily removed from the machine in which it is placed by simply operating on the fixing screws 7) Hydraulic unit for automatic operation as above, characterized by having adequate oscillating scrapers that allows the expulsion of used coffee 8) Hydraulic unit for automatic operation as above, characterized by having incorporated on the piston with the infusion chamber an adequate slide necessary for discharging the used coffee 9) Hydraulic unit for automatic operation as above, characterized by the fact that it does not have an electromechanical motor drive unit for moving the unit, but uses the water pressure of the pump which all coffee machines are equipped with