DE2351361A1 - COFFEE MACHINE - Google Patents

Description

ITice / France '"
Avenue pufourni coats 1

PATENT LAWYERS

DR. ERNST STURM

8000 Munich 40, Leopöldstraßc 20 / IV Telephone: (0811) 39 64 51

Wire: Isarpatcnt

Batik: Deutsche Bank AG Munich 21/14171 Postal check: Munich 9756-809

Date October 12, 1973

ICAFFEEIiASCHINE

The invention relates to an automatic coffee machine with a simplified Operation with which the height of the extrusion processes is reduced and with which it is possible to do this in a single operation in the same plane.

Known devices of this type require at least seven Carry out operations to obtain a coffee infusion. To do this, you have to put the filter paper in a filter, a spoon-like one Fill the measure with ground coffee and smooth it out, the spoon-like Pour the measure into the coffee filter, attach the filter to the coffee machine, add hot water and wait until the Coffee is pressed through, put the filter back on the coffee machine to keep it warm, finally pull out the filter, and remove the coffee grounds. The operator must also have great dexterity to perform these operations to execute correctly.

The object of the invention is to create a device which avoids this cumbersome handling and which allows this To reduce the number of manipulations, leaving the user with the

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BAD ORK31NAL

Given the possibility of v, ^r lrd, clios, everything can only be carried out in a single work step and preferably in the same work level.

i -

• This object is achieved according to the invention in that dio Coffee machine a sliding and extendable in its height Has frame which has a lever for moving and stopping the frame, and that on the frame a coffee filter is arranged, which is tiltable about an axis and which 'has a double bottom, v / elcher is used to empty the coffee grounds, while a funnel made of heat-insulating material collects the coffee draining off the filter and puts it in the cup leads.

The coffee machine according to the invention thus has a horizontally displaceable on two parallel rails connected to the frame Frame on and above a plate that can be moved up and down by a lever. The plate carries two , Platform plates on which there is a friction fit with the coffee filter connected axis rotates, which ejects the coffee grounds when turned over, while a sliding double body in the filter 'its removal facilitated. The sliding frame is located once under a metering distributor and once under one Boiler.

; Further advantages and features of the invention result from! the following description in which the invention on the basis of , in the drawing illustrated embodiments to the however, the invention is not restricted, is described and explained in more detail. Ss ropes:

Fig. 1 is a section through a displaceable in a cavity Arrangement formed by the lower part of the boiler,

Fig. 2 - a side view of the one located on rails

.., ν, * - _{> f} ^ rr? 409817/0371

BAD ÖÄL

■ frame according to a first embodiment, |

■. ■. · I

.3 the side view of a rotating frame according to.

a second embodiment and ^;

k the working positions that the mobile calving should take ^; of a work cycle, according to the first output i

exemplary embodiment of the invention. · J

According to FIG. 1, the lower part of the boiler 1 has a cone 2 which causes the expansion of an "annular seal 3, which rests on an edge bead of the lower part of a piston k . The upper part of the piston 1+ is through a snap ring 5 ', a counter-rotating valve and its spring 6, which are attached to the

ι are arranged lower part of the piston end, the hot water supply 7 close. Secure a sieve 8 and seals 9

; the cohesion or the seal between the piston 1+ and

• the lower part of the boiler! - Overall, the piston ^, \ the sieve 8, the counter-rotating valve and its spring'6 form a non-positively connected, displaceable arrangement within an envelope which is formed by the lower part of the boiler 1 det is. ·. '

• According to Pig. 2 can 'move the frame 10 on rails 11, of which "one carries a retractable stop 12. At the top ... Part of the frame 10 is an extendable plate 13,

j which is actuated by a lever 1if «Another lever 15 positively connected to an axis 16 and a filter 17 allows the filter 17 to be turned around, in which a double floor 18 is arranged, which is provided with a push rod 19 and a return spring 20 , and furthermore the lever 15 sets the metering distributor 2.8 in motion at the end of the operation. A

• funnel 22 made of heat-insulating material collects the through ^; pressed coffee, rollers 23 allow the frame 10 to slide on the rails 11.

According to a second embodiment shown in FIG

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of the invention, the frame 10 is provided by a rotatable frame that has the same elements.

In Fig. If three working positions are shown, which show a complete operation. The pressing of the coffee with the help of the contact of an electrical contactor 29 is shown in working position A. Working position B shows the removal of the coffee grounds. A driver 2 / f can be seen there, which is supported on the push rod 19 in order to empty the coffee grounds 25 into a container 26 arranged below. A stop Ξ.7 _1, which is supported on the lever 15, rotates the filter 17 back to its original position. Finally, working position C shows the refilling of the filter 17 with the correct dose of ground coffee.

The kettle, which contains the water necessary to press the coffee through, is provided at its lower part with a device that receives the dry and granular coffee powder ϊ during the pressing of the coffee grounds is ensured by the fact that the one with the sieve 8 and the counter-rotating valve frictionally connected piston k is lowered under the pressure of the water contained in the boiler.

Loosening the coffee grounds does not prevent the latter remains suspended during the lowering of the filter 17 on the sieve 8, thanks to the tightness of the counter-rotating valve achieved thereby is that the piston, the strainer and the valve are positively connected to each other and the space between the Coffee grounds and the valve to achieve buoyancy

The metering distributor that is removed from the frame at the end of the work cycle is pressed, a dose of coffee powder is dispensed, which gravity causes it to fall into the filter ·. Below this distributor A container collects the ground coffee and any ground coffee that has been spilled over the edge from the metering distributor.

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The frame, which can be extended in terms of its height, moves !horizontal. The part that can be moved upwards is a plate with two platform plates in which the with idem filter rotates positively connected axis. The latter ; falls over and the coffee grounds fall into the container, the dissolving or emptying is supported by the double floor, which is arranged in the filter. The filter is turned over after the driver so that the coffee grounds are removed from the filter. The non-positively connected to the filter axis Before the end of the work cycle, the lever turns the filter into a Bring back the horizontal position, in that the lever is supported on the stop positively connected to the frame.

The operator thus only has a simplified handle executed.

Filling the boiler with hot water and switching on the electrical circuit is sufficient to initiate the following operations: the frame moves under the metering distributor, it is returned under the boiler, the lever swivels to push the filter into the piston and the lever presses more or less strongly, depending on the quality of the coffee you want. ' As soon as the pressing is finished, the machine is ready for a new work cycle. "*

The invention is not restricted to the exemplary embodiments shown. Within the scope of the invention, the forms can be _t, the dimensions and arrangements of the various elements are varied as the materials used to manufacture without den.obenbeschriebenen general inventive concept left to-be. '·

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Claims (3)

-D- ■ Claims 1. Automatic coffee maker with simplified 'operation, with the Heilie the Auspreßvorgänge reduced v / can ground and with which it is possible to perform this in one single operation in the same plane, characterized in that it comprises a displaceable and extendible in height Hahmen (10) having a lever (14 »15) ι has to move and stop the frame, and that a coffee filter (17) is arranged on the webs (10), which can be tilted about an axis (16) and which has a double : has the bottom (13), which is used for emptying the coffee grounds (25) is used, while a funnel (22) made of heat ι insulating material collects the coffee flowing out of the filter (17) and guides it into the cup. 2. Coffee machine according to claim 1, characterized in that the displaceable or horizontally rotatable frame (10) can be moved in succession to a metering distributor (23) with ground coffee and then under a kettle. 3. Coffee machine according to claim 1, characterized in that the boiler has a piston (4) at its lower part, which under the pressure of the ground coffee during the clamping of the lever (14) and under the pressure of the water contained in the boiler during the Squeezing the coffee is displaceable by a part, and that an annular seal (3) due to a cone (2) is expandable in its diameter, namely by the fact that a counter-rotating valve both with a sieve (8) and with the piston (4) is positively connected. 4 · Coffee machine according to claim 1, characterized in that an electrical contact of a delay relay (29) with can be operated in three positions when the coffee filter (17) 409817/0371 _Copy is connected to the piston (if) and the seal (3), one position serving to depressurise the boiler at the end of the work cycle. 409817/0371 COP ^V Blank page