ES1063538U - Automatic coffee maker (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Automatic coffee machine, of the type comprising a water tank (21) and a suction pump (22) connected to a boiler (23), a coffee bean deposit (31) with a grinder (32) ground coffee and a ground coffee dispenser (33), the boiler (23) and the dispenser (33) being connected to a brewing unit (4) and carrying out the automated coffee infusion, which, in turn, is connected to a dispensing outlet (11) of the coffee infusion made, characterized in that it comprises coupled to the outlet of the brewing unit (4) and before the dispensing outlet (11), a housing (5) with a mouth outlet (51) and a cover (6) with an infusion inlet (61) from the brewing unit (4), being in the interior of said housing (5) an elastic disc (7) provided with one or several fine holes (71) of passage of the coffee infusion retaining it up to a certain pressure, a support (8) of said disc (7) and a sealing gasket (9) of the assembly, thus making it possible to maintain the pressure of the infusion of the coffee inside the delivery unit (4) substantially constant during its implementation, improving its taste and cream production when increasing the pressure and the time of passage of the water by the ground coffee and cause the exit at high speed of the infusion through the orifices (71). (Machine-translation by Google Translate, not legally binding)

Description

Automatic coffee maker

Object of the invention

The present invention relates to a coffee maker automatic type of those that allow the infusion of coffee, from coffee beans, completely automatic

Background of the invention

The so-called coffee makers are known automatic for public service or "vending" or use domestic. These coffee makers comprise a deposit of coffee beans, related to a adjustable grinder grinder and a dispenser  ground coffee for the realization of coffee, being the supply of water from a water tank and a suction pump, the which is connected to a boiler to heat the water. The coffee ground and hot water pass to a dispensing device in the That coffee is made. This delivery unit receives coffee freshly ground, press it into a chamber and run the water from the boiler for ground coffee to obtain the infusion that is supplied through a dispensing outlet of the housing that It houses the whole set. Once the infusion is done the same dispensing device expels the ground coffee residue being ready to make the next coffee.

In this type of machines the quality of coffee and amount of cream obtained depends mainly on the water temperature, water velocity and pressure with the that said water flow passes through the ground coffee, being determined this pressure in addition to the boiler feed by the degree of grinding and pressing of coffee in the dispensing unit. In this way, as the coffee grind has graduated, They get different qualities of the infusion.

Of all these work parameters, only You can work in factory safely on the temperature of the hot water that passes through the coffee, and approximately, the degree of ground and the amount of ground coffee, which are actually what determine the working pressure of the machine (step resistance of the liquid).

It is very difficult to achieve the uniformity of result in all coffee machines, because the grinding has many variables, which may vary from one coffee maker to another and evolve during use altering coffee quality.

Description of the invention

The automatic coffee maker of this invention features some technical peculiarities destined to obtain a production of the highest quality coffee infusion with an amount of cream high and an optimal flavor in a simple and constant way during the life of use

In fact, the coffee maker comprises coupled to the exit from the dispensing unit and before the departure of dispensing, a housing with an outlet and a lid with an infusion inlet from the dispensing unit. At within this housing there is an elastic disk provided with one or several fine holes of coffee infusion, retaining it until it reaches a certain pressure at which the pressure beats the disc, opening the holes with a fine passage and then high speed. In this way it is possible that the water passes to a high pressure constantly for ground coffee, which the step speed be reduced to better pick up your substances flexible and that the infusion once passes through the holes of the disc do it at high speed, increasing the production of cream. The elastic disk is accompanied by a support and a joint of tightness of the assembly, which avoids pressure losses and / or liquid during the coffee infusion. This is allowed that the coffee infusion pressure inside the unit of delivery is high during the performance of said infusion, improving its flavor and favoring the production of cream.

The cover and accommodation are in solidarity preferably by screws arranged in respective holes of both elements.

In turn, in an alternative embodiment the lid can be integrated in the delivery unit, remaining coupled the housing directly on said unit.

The elastic disk holder is constituted preferably by a rigid ring on which the disc rests allowing bending without contact with the surface Inside the accommodation In turn, the ring can incorporate a series of front pivots on which the disc fits through respective holes. This way a better tension is achieved of the disc and a more controlled infusion passage through the holes and at higher pressure.

The seal is preferably a O-ring and pressed by the cover to get the whole It is tight avoiding pressure and / or liquid losses.

Description of the figures

To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached herein descriptive a set of drawings in which, for illustrative purposes and not limiting, the following has been represented:

- Figure 1 shows a schematic view of coffeemaker.

- Figure 2 shows an exploded view of the disk housing and infusion retention elements of coffee in the dispensing unit.

Preferred Embodiment of the Invention

As can be seen in the figures referenced the automatic coffee maker comprises inside a housing (1) a water tank (21) and a suction pump (22) which is connected to a hot water boiler (23), and a deposit (31) of coffee beans with a grinder (32) ground adjustable incorporating a ground coffee dispenser (33), being these components connected to an dispensing unit (4) for the Automatic coffee infusion. At the exit of the infusion of the dispensing unit (4) is coupled a housing (5) with an outlet (51) and a cover (6) with a inlet (61) of the infusion, just before the exit of dispensing (11) of coffee from the dispensing unit (4). At inside the housing (5) is a chamber in which find an elastic disc (7) transverse and in which there are some small holes (71) of controlled passage of coffee infusion retaining it at a certain pressure and with a small step flow. Said disk (7) is held by a rear support (8) rigid, ring-shaped, on which there may be pivots (81) front, which are housed in holes (72) that may exist on said disk (7) for this purpose for support and tension. In front of the disk (7) is a joint (9) O-ring when the cover (6) closes on the disk (7).

The lid (6) and the housing (5) are attached preferably by screws (10) arranged in respective holes (52, 62) to exert the necessary force on the joint O-ring (9) and thus avoid leaks and maintain the pressure created by the elastic disc (7).

Once the nature of The invention, as well as a preferred embodiment, is made record for the appropriate purposes that the materials, shape, size and disposition of the described elements may be modified, as long as this does not involve an alteration of the essential features of the invention claimed in continuation.

Claims (5)

1. Automatic coffee machine, of the type comprising a water tank (21) and a suction pump (22) connected to a boiler (23), a coffee bean container (31) with a grinder (32) of Adjustable ground and a ground coffee dispenser (33), the boiler (23) and the dispenser (33) being connected with a dispensing unit (4) and carrying out the automated coffee infusion, which, in turn, is connected to a dispensing outlet (11) of the brewed coffee infusion, characterized in that it comprises coupled to the outlet of the dispensing unit (4) and before the dispensing outlet (11), a housing (5) with a mouth outlet (51) and a cover (6) with an infusion inlet (61) from the dispensing unit (4), an elastic disk (7) provided with one or more being located within said housing (5). several fine holes (71) for the infusion of coffee retaining it until a certain pressure, a support (8) of said di sco (7) and a sealing gasket (9) of the assembly, thus allowing the coffee infusion pressure inside the dispensing unit (4) to be kept substantially constant during its performance, improving its flavor and cream production by increasing the pressure and time of passage of the water through the ground coffee and cause the infusion to flow at high speed through the holes (71). 2. Coffee maker according to claim 1, characterized in that the lid (6) and the housing (5) are preferably secured by screws (10) in respective holes (52, 62). 3. Coffee maker, according to any of claims 1 and 2, characterized in that the lid (6) is integrated in the dispensing unit (4). Coffee maker according to claim 1, characterized in that the support (8) is constituted by a rigid ring on which there can be several front pivots (81) in which the disc (7) fits through respective holes (71). 5. Coffee maker according to claim 1, characterized in that the seal (9) is an O-ring.