Machine for making coffee

FIELD: personal use articles.

SUBSTANCE: invention relates to household appliances. The machine for making coffee comprises a brewing group with the main body formed by the casing, limiting the space for the reverse movement of the brewing cylinder between the position of engagement with the packing piston for formation of the brewing chamber, and the position of decoupling with the packing piston to load a portion of ground coffee. And the brewing cylinder is rigidly supported by the rotating arm. It also comprises a tool of removable mutual coupling between the brewing cylinder and the arm, secured to take the said brewing cylinder out of the window of the body. And on the outer side of the said body there is additionally a means of moving the arm.

EFFECT: invention enables to simplify the device design concept and make it more compact and reliable.

15 cl, 8 dwg

 

The present invention relates to a machine for making coffee.

Known automatic or semi-automatic espresso machines contain tea group, comprising a teapot, a cylinder capable of moving in two directions from a position of disengagement in the engaged position by means of a sealing piston for education brewing chamber in which water-maker, which has been heated in the boiler and submitted through the appropriate internal channel in the sealing piston.

The brewing cylinder, alternatively, contains in its inner part that pushes the piston, which moves in accordance with scraper for discharging portion used ground coffee.

Duty cycle mainly contains the loading phase portions of ground coffee in the brewing cylinder, the nomination of brewing cylinder to the engaged position with the sealing piston for the formation of the brewing chamber and the execution of the brewing process and the stage of the challenge of brewing cylinder, which is unlinked with the sealing piston to remove portions of the used ground coffee and download the new portion of ground coffee.

Such machines can be very large, due to the specific placement and design business groups and mechanisms by which they OS is ameny.

Basically, a teapot, and the group contains its own reference shell, in turn, mounted in the machine casing. Sometimes installing brewing group on the corresponding shell and the mounting of the frame brewing group in the machine body can be difficult, complex, and costly.

In addition, one such design espresso machines may have additional design constraint to ensure the compactness of the machine at a certain limit and can lead to an increase in the total number of components.

Increasing demand for removable brewing cylinder that can be removed, mainly for cleaning and/or maintenance and repair, in General, has led to significant complexity of the design hotel group.

Normal cars can have poor performance if long breaks occur between one work cycle and the next. In this case you have adequate time to pre-heat for optimal temperature for the components in the hydraulic circuit.

EP 0486433 and EP 0486435 disclose a machine for making coffee under the restrictive part of claim 1 of the attached claims.

Therefore, the technical problem that the present invention provides, is the creation of machines for PR is for drinking, preparing coffee, that you can address the technical shortcomings of the prior art.

One of the objectives of the present invention is to provide a highly efficient and reliable machine for preparing coffee, convenient for the maintenance and inspection of all internal components, compact, simple in construction.

Not the last object of the present invention is to provide a machine for preparing coffee with excellent performance, which will allow you to get a good drink hot at the right time, even when he turns in the business cycle after a long downtime of the machine.

The technical task, as well as these and other purposes in accordance with the present invention are achieved by a machine for making coffee according to claim 1.

Other features of the present invention are further defined in the dependent claims.

Additional characteristics and advantages of the present invention will become clearer from the description of one or more preferred but not exclusive embodiments of a machine for making coffee in accordance with the disclosure, is illustrated as an index and a non-limiting example in the accompanying drawings, in which

figure 1 is a perspective view in section of a machine for preparing coffee in the according to the according to the present disclosure, in which the main body is brewing group is a wrapper that supports the housing and other components of the machine for making coffee;

figure 2 is a perspective view with a spatial separation of the components of the main body tea group espresso machines in accordance with the present disclosure;

figure 3 - schematic view of the group move the bracket espresso machines figure 2;

4, 5 and 6 kinds of brewing cylinder/seal of piston installed in the machine of figure 2, the position of the brewing and two steps of emptying of the channel, which is served a drink in the remote feed position;

Fig.7 is a view of a removable connection system between the bracket and the brewing cylinder machine in figure 2;

Fig is a schematic view of a machine for making coffee in accordance with the present disclosure, in which the recovery of heat in the boiler is provided for pre-heating at least one of the sealing piston.

As shown in these drawings, shows a machine for making coffee, indicated in General position 1.

The machine 1 includes a teapot, a group with the main body 16 formed by the casing limiting the space 8 for reversing the movement of the brewing cylinder 4 between the provisions is receiving engagement with the sealing piston 3 for the formation of the brewing chamber 5 and a position of disengagement with the sealing piston 3 to load portions of ground coffee, in particular, the charging device (not shown).

The casing preferably includes first and second halves of the casing 6 and 7, connected to each other, which form a space 8 for reversing the movement of the brewing cylinder 4, but such casing, alternatively, can be made in monoblock construction, or of more than two parts.

The casing directly form the shell, which supports the housing 80 and other components of the machine 1.

Figures 1 and 2 several connecting screws 95 are depicted as examples that can be tightened in the respective slots 96 for connecting the housing 80 and other components of the machine 1 with the main body 16 tea group.

Tea 4 cylinder rigidly supported by the bracket 9, which is located in the space 8.

The bracket 9 has an axis 11 of rotation, capable of moving along the axis 10 of the move, oriented at right angles to the axis 11 of rotation and parallel to the axis 13 of the sealing piston 3.

The axis 13 of the sealing piston 3, preferably inclined relative to horizontal.

Provided by means of rotation of the bracket 9 around the axis 11 of rotation between a first angular position in which the axis 12 of brewing cylinder 4 is oriented at right angles to the axis 10 of the movement to perform the download of the specified portions of malacologie, and a second angular position in which the axis 12 of the brewing cylinder is oriented parallel to the axis 10 of the move.

On the side of the brewing cylinder 4 in addition there are means to move the bracket 9 along the axis 10 move to achieve a position of sealing engagement with the piston 3.

In particular, the sealing piston 3 is supported in the upper part of the space 8 of the main body 16 tea group 2 so that the brewing cylinder 4 is moved to the inside space 8 to the top for emphasis in the sealing piston 3 and to the bottom of the release with the sealing piston 3, as will be shown in detail below. The sealing piston 3 is in hydraulic connection with the boiler 51, from which it receives water for brewing, and it is installed in an intermediate position of the elastic component 57 on the support and the guiding component 55, rigidly attached to the main body 16.

The sealing piston 3 can move along its axis 13 between a position corresponding to the opening of the inlet (not shown) for water-maker (when the sealing piston 3 meshed with the brewing cylinder 4 when the pressure on the ground coffee in the brewing chamber, which is optimal for brewing), and a position not corresponding to open the Oia such inlet (when the sealing piston 3 rescaled with the brewing cylinder 4 and when instead, when you engage him, he determines when the pressure on the ground coffee is insufficient for optimal brewing).

The boiler 51, predominantly, has a protective shell 120, which determines the boundaries of the air chamber 53 in connection with the space 8 through the corresponding holes 54 formed in the wall of the main body 16 tea group 2, which separates the boiler 51 from space 8.

The brewing cylinder 4 and the bracket 9 contain the means 81 for engagement with the preferred snap with the possibility of separation, made with the possibility of manual removal of the brewing cylinder 4 through the corresponding window 14 of the main body 16 tea group 2, which opens to the space 8 and is accessible from the outside of the machine.

Tool 81 consists of retractable teeth 202 protruding from the side surface of the brewing cylinder 4, is arranged to engage in a corresponding groove 203 formed in the bracket 9, and buttons 204 management removal of teeth 202 mounted on a support 205 attached to the brewing cylinder 4.

The ability to remove the brewing cylinder 4-space 8 makes it very easy to inspect and clean the brewing cylinder 4.

Preferably, the water tank (not shown) of the machine is to close the party window 14.

Means of movement of the bracket 9 includes a threaded nut 20, the gear with the screw 21, oriented parallel to the axis 10 of the move and driven in rotation (but limit its own axial movement) of the motor 22 through the lower gear and drive).

Means of movement of the bracket 9 is located on the outer side of the space 8 and, in addition, supported in part 18 of the main body 16.

The threaded nut 20 has a pin 19 of rotation of the bracket 9 around the axis 11 of rotation.

Pin 19 of rotation engages with the sleeve 206 of the mounting part 15 of the bracket 9, which is located along the through groove 17 of the slide formed in the first side wall 18 of the main body 16 and parallel to the axis 10 of the move.

Tea group 2 contains the ejection system used portions of ground coffee from the brewing chamber containing a scraper 27 mounted on the hinge 28 on the side access holes brewing cylinder 4 and is able to rotate in accordance with the eject piston 29, which is located in the brewing cylinder 4 on which it is coaxially able to move between a retracted position near the base of the brewing cylinder 4, and an extended position located far from the base of the brewing cylinder 4.

The means of rotation of the AOC is matte 9 contains the Cam 23 to rotate the bracket 9, which engages the protrusion 25 that protrudes from the bracket 9, or in another embodiment from the brewing cylinder 4 or, more specifically, from the portion supported by the brewing cylinder, such as the stem 33 of the ejector piston 29.

The Cam 23 of the rotation, in addition, completed in the first side wall 18 of the main body 16 tea group 2.

The Cam 23 of rotation of the bracket 9 is shaped groove, which, in particular, may be made separately and be different from the groove 17 of the slide or may be performed in another embodiment, on the protruding part of the groove 17 of the slip.

Facing the first side wall 18 of the main body 16 a teapot, and group 2 is the second side wall 26 of the main body 16 tea group 2, in which there is a window 14 for removal of the brewing cylinder 4.

Drive unit eject piston 29 is located under the base of the brewing cylinder 4 in the space 8.

Kinematic drive mechanism of the scraper 27 contains the corresponding Cam 121 that protrudes from the scraper 27 and causes the rotation of the latter for cleaning access holes brewing cylinder 4, which pushes the piston 29 has submitted a portion of the used ground coffee. Scraper 27, more specifically, includes articulated pin 123 parallel to the axis 12 is averageho cylinder 4, and driven by a return spring (not shown) to the original position on the side of the access holes to the brewing cylinder 4.

In accordance with a particularly preferred aspect of the present invention, the coffee maker 1 contains the channel 58, which moves the drink made in the brewing chamber 5, to a remote metering device 62, the tool selective hydraulic connection channel 58 with the brewing chamber 5, or with a drain tube and a means of draining of the beverage remaining in the channel 58 of the feed at the end of each working cycle of the machine 1.

The location of the dispenser 62 in a suitable position which is remote from the brewing chamber 5, makes the coffee maker 1 is more compact in height (preferably inclined orientation of the axes of motion for the brewing cylinder 4 already provides the limitation of the total machine height and width or depth) at the optimal distance of the dispenser 62 located at the bottom of the pallet 125, which can be located cups 59 different heights (the Cup of coffee "espresso", "cappuccino"), as well as special capacity to download several servings of coffee beverage.

The channel 58 of the feeder includes first and second flexible tubes 63 and 64, the first ends of which are connected through the chamber 69 formed in the block 65.

Block 65 supports the first ends of the first and second flexible pipe is 63 and 64 and, in turn, is supported by the sealing piston 3, located on its side.

The second end of the first tube 63 is connected to the metering device 62, while a second end of the second tube 64 is connected via a connecting component 126 to the outlet 83 of the beverage from the brewing chamber 5.

The connecting component 126 is directly formed through the thickness of the bracket 9.

The discharge hole 83 formed in the lower portion of the side wall of the brewing chamber 5.

Means selective hydraulic connection contains an internal channel 84 eject piston 29, which is open at its first end 85 on the side of the ejector piston 29 and at its second end 86 on the front surface of the ejector piston 29, and the outlet 97 of the brewing cylinder 4 formed at the base of the brewing cylinder 4. The first end 85 of the channel 84 is in such a position that coincides with the discharge hole 83 in the exhaust ejector piston 29.

Around the first end 85 of the channel 84 and around the exhaust holes 83 are respectively the hydraulic sealing gasket 90 and 91.

The channel 84 includes opening the valve responsive to the internal pressure in the brewing chamber 5 and containing a ball check valve 87, which is able to move and be driven by a spring 92.

The tool plum drink, remaining inside the of 58 anal submission contains the shutter 60 holes 61 in direct communication with the atmosphere, is located along the channel 58 of the feed. More specifically, the hole 61 is formed through the thickness of the walls of the chamber 69 formed in the block 65.

The shutter 60 and the hole 61 are accurately aligned parallel to the axis 13 of the sealing piston 3 along which they are able to move between the contact position to close the openings 61 during the brewing and a distant position for opening the holes 61 in the end of the brewing process for the production of gravity of the beverage remaining within the channel 58 of the feed.

The shutter 60, in particular, is a small piston, a restricted intermediate position of the spring 88 and the bore 89 of the main body 16 tea group 2.

The working machine 1 are briefly described below.

The brewing cylinder 4 is at the beginning of the movement under boot device for ground coffee and, preferably, with an axis slightly tilted back relative to the vertical.

Push the piston 29 is in the designated position.

At the end of loading of ground coffee in the brewing cylinder 4, the motor 22 is actuated and causes the rotation of the screw 21, along which the force moves the nut 20.

The bracket 9, hinged to the slide 15, is attached as a unit to the nut 20, begins to move the brewing cylinder 4 up.

During the beginning of the lifting lug 25 is moved along a curved section of the Cam 23 rotation, which ensures the rotation of the brewing cylinder 4, while the axis 12 of brewing cylinder 4 are coaxial with the axis 13 of the sealing piston 3.

Such rotation of the brewing cylinder 4 also contributes some leveling of ground coffee that you just downloaded in the brewing cylinder 4.

Since then, the upward movement continues in the same angular orientation of brewing cylinder 4 as the remainder of the Cam 23 of rotation is rectilinear and parallel to the axis 10 of the movement of the brewing cylinder 4.

The brewing cylinder 4 comes into engagement with the sealing piston 3.

Contact pressure in the brewing cylinder 4 on the sealing piston 3 creates an axial pulling force acting on the sealing piston 3 along the supporting and guiding component 55.

When moving the sealing of the piston 3 relative to the supporting and guiding component 55 that determines the optimum pressing the ground coffee, the drain hole brewing chamber 5 is opened for water-maker, which comes from the boiler 51 and passes through the sealing piston 3.

The brewing cylinder 4 is stopped in this position with the ejector piston 29, which is held in what anatom position, in which the first end 85 of the channel 84 is coaxial with the outlet 83, while the shutter 60 closes the opening 61. Therefore, the dispenser 62 is in connection with the brewing chamber 5.

During the brewing, when the pressure of the brewing process, existing in the brewing chamber 5 reaches a sufficient value, in which the ball check valve 87 is moved back, breaking the counteraction of the spring 92, the inner channel 84 opens to eject the piston 29, and drink, respectively, is directed into the channel 58 of the feed reaches the dispenser 62, from which it is fed into the Cup 59.

At the end of the brewing tea 4 cylinder begins to move downward due to the rotation in the reverse direction of the motor 22.

At the beginning of the downward movement of the shutter 60 opens the hole 61 and places the channel 58 submission in connection with the atmosphere, while pushing the piston 29 is not moved relative to the brewing cylinder 4 so that the inner channel 84 eject piston 29 remains hydraulically connected to the channel 58 of the feed, only the remainder of the liquid in the first flexible tube 63, at this point merges into the Cup 59, finishing its content.

After moving down the brewing cylinder 4 unlinked with the sealing piston 3, and the kinematic movements of the ejector piston 29 on inet to pull it out of the brewing cylinder 4, until you provide a close hydraulic connection between the inner channel 84 push the piston 29 and the channel 58 of submission and opening hydraulic connection between the channel 58 of the inlet and the outlet 97, ensuring the release of gravity in the appropriate capacity 127 the remaining liquid of the second flexible tube 64.

After removing the used portions of ground coffee during the final move down the brewing cylinder 4, the protrusion 25 is again moved along a curved section of the Cam 23, the rotation of which causes rotation in the opposite direction of brewing cylinder 4, while its axis 12 is set coaxially with the upstream boot device.

Process control operating modes of the machine 1 contains a specific characteristic, namely, that at least part of the heat energy dissipated by the heater 51 is returned to its transmission, at least, for sealing the piston 3 to its pre-heating before the next work cycle of the machine 1.

If necessary, use the air inside the protective sheath 120 boiler 51, which is heated by the action of thermal energy dissipated by the heater 51 during and after his employment and which is connected through the opening 54 with the adjacent space 8, which finds the I sealing piston 3.

In particular, it is possible that this residual heat energy is also transferred to the brewing cylinder 4 to pre-heat for the subsequent operating cycle of the machine, for example, so that at the end of the working cycle of the brewing cylinder 4 sank immediately, but only when set to the following operating cycle of the machine.

Designed coffee allows many modifications and changes, all of which are included in the scope of the idea of the present invention, in addition, all components can be replaced with technically equivalent components.

In practice the materials used and the dimensions may be any according to the specific requirements and technology.

1. Machine for making coffee that contains tea group with the main body, formed by the casing, limiting the space for reversing the movement of the brewing cylinder between a position of engagement with the sealing piston for education brewing chamber and a position of disengagement with the specified sealing piston to download portions of ground coffee, and specified the brewing cylinder is rigidly supported by the bracket having a movable axis of rotation along the movement axis, oriented at right angles to the said axis of rotation and parallel to the axis of the specified TP is tion of the piston, remedy remove the mutual engagement between the said brewing cylinder and the bracket secured to retrieve the specified brewing cylinder from the window in the specified casing and the tool specified rotation of the bracket around the specified axis of rotation between a first angular position in which the axis specified brewing cylinder is oriented transversely of the specified axis movement for loading the specified portions of ground coffee, and a second angular position in which the axis specified brewing cylinder is oriented parallel to the specified axis movement, characterized in that on the outer side of this casing provided with means to move the specified bracket along the specified axis movement to achieve the specified position of engagement with the specified the sealing piston.

2. Machine according to claim 1, characterized in that the axis specified sealing piston is inclined relative to horizontal.

3. Machine according to claim 1, characterized in that the casing directly forms the shell of this vehicle, which supports the housing and other components of this vehicle.

4. Machine according to any one of claims 1 to 3, characterized in that the casing includes first and second halves connected to each other.

5. Machine according to any one of claims 1 to 3, characterized in that FR is specified, the casing is made in one piece.

6. Machine according to any one of claims 1 to 3, characterized in that it contains a duct configured to supply drink tea in the specified camera to the remote dispenser, means selective hydraulic connection of the specified feed channel with the specified satellite television camera or with a drain channel and a means of draining of the beverage remaining within the specified supply channel, at the end of each working cycle of this vehicle.

7. Machine according to any one of claims 1 to 3, characterized in that the sealing piston installed on the fixed guide and reference component and capable of moving along its own axis along the specified guide and reference component between a position for opening the inlet for water to brew tea in the specified camera, and position, preventing opening of the specified inlet.

8. Machine according to any one of claims 1 to 3, characterized in that the feed channel includes first and second flexible tube, the first end of which is communicated through made the camera unit supporting the first end of the specified first and second flexible tubes, and which is supported in the specified sealing piston and is on his side.

9. Machine according to any one of claims 1 to 3, characterized in that the second end is pointed to by the th first flexible tube connected with the specified dosing while the second end of the specified second flexible tube is connected via a connecting component with the discharge of the beverage from the specified brewing chamber, and specified connecting component is made directly through the body of the specified bracket.

10. Machine according to any one of claims 1 to 3, characterized in that the said means of selective hydraulic connection contains the outlet of the specified satellite television camera made through the basis of the said brewing cylinder and the inner channel to eject the piston, located in the specified brewing cylinder, with the specified internal channel is open at its first end on the side surface of the specified buoyancy of the piston and at its second end on the front surface of the specified ejector piston.

11. Machine according to any one of claims 1 to 3, characterized in that the means of draining the drink contains a shutter for opening in direct communication with the atmosphere, which is located along the specified feed channel.

12. Machine according to any one of claims 1 to 3, characterized in that the said opening in direct communication with the atmosphere is made through the wall thickness specified camera, made in the specified block.

13. Machine according to any one of claims 1 to 3, characterized in that the said means of displacement which engages a threaded nut, gear with screw, oriented parallel to the specified axis movement and driven by a motor supported by the specified main body.

14. Machine according to any one of claims 1 to 3, characterized in that the threaded nut includes a pin rotation, which engages in the connecting area specified position of the bracket along the guide slide through a slit made in the first side wall of said main housing and continuing parallel to the specified axis movement.

15. Machine according to any one of claims 1 to 3, characterized in that the said means of rotation includes a Cam rotation specified brewing cylinder, in which the protrusion engages with the specified bracket or rod specified ejector piston.



 

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