DK145325B

DK145325B - COFFEE MAKER

Info

Publication number: DK145325B
Application number: DK573277AA
Authority: DK
Inventors: J C Jensen
Original assignee: Electrolux Ab
Priority date: 1977-01-05
Filing date: 1977-12-22
Publication date: 1982-11-01
Also published as: DE2800232B2; NO780029L; FI773806A7; SE7700109L; SE407145B; DE2800232A1; DE2800232C3; DK573277A; FI66735C; NL7713843A; NO143928B; FI66735B; NO143928C; JPS5631964B2; JPS5391875A; DK145325C

Description

(S) \ po y (19) DANMARK Nw/ *(S) \ po y (19) DENMARK Nw / *

f® da) FREMLÆGGELSESSKRIFT mi 145325 Bf® da) SUBMISSION WRITING mi 145325 B

DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENETDIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM

(21) Ansøgning nr. 5722/77 (51) lnt.CI.3 A 47 J 31/56 (22) Indleveringsdag 22. dec. 1977 (24) Løbedag 22. dec. 1977 (41) Aim. tilgængelig 6. Jul. 1978 (44) Fremlagt 1. nov. 1982 (86) International ansøgning nr.(21) Application No. 5722/77 (51) lnt.CI.3 A 47 J 31/56 (22) Filing date 22 dec. 1977 (24) Running day 22 dec. 1977 (41) Aim. available July 6. 1978 (44) Submitted Nov. 1. 1982 (86) International application no.

(86) International indleveringsdag (85) Videreførelsesdag - (62) Stamansøgning nr. -(86) International filing day (85) Continuation day - (62) Master application no. -

(30) Prioritet 5. jan. 1977, 77OOIO9, SE(30) Priority Jan 5 1977, 7700109, SE

(71) Ansøger AKTIEBOMGET ELECTROLUX, S-105 45 Stockholm, SE.(71) Applicant SHARE BOMGET ELECTROLUX, S-105 45 Stockholm, SE.

(72) Opfinder jens Christian Jensen, SE.(72) Inventor jens Christian Jensen, SE.

(74) Fuldmægtig pirmaet Chas. Hude.(74) The clerk pirate Chas. Hude.

Kaffemaskine.Coffee maker.

Opfindelsen angår en kaffemaskine af den art, som er angivet i krav l's indledning.The invention relates to a coffee machine of the kind set forth in the preamble of claim 1.

Der kendes kaffemaskiner, ved hvilke to beholdere til brygning og varmholdning af kaffen før serveringen er anbragt i et vandbad.Coffee machines are known in which two containers for brewing and holding the coffee before serving are placed in a water bath.

Varmholdningen skal ske ved en temperatur omkring 82°C, og derfor 3 holdes vandbadet på denne temperatur. Når brygningen skal ske, må "> vandbadets temperatur først hæves fra varmholdnings temperaturen, tilThe heating must take place at a temperature of about 82 ° C, and therefore the water bath is kept at this temperature. When brewing is done, the temperature of the water bath must first be raised from the holding temperature to

J OJ O

) brygningstemperaturen eller nærmere 100 C. Brygningen skal ske ved J omkring 97°C. Kaffemaskinen har derfor organer til varmetilførsel til vandbadet med en reguleringsindretning, som styres af en ter- t mostat med et følerlegeme i vandbadet. Termostaten står normalt på 2 145325 82°C, men må før brygningen stilles om til f.eks. 98°C. Kaffemaskinen har et termometer, som viser vandbadets temperatur. Når denne er nået op til 98°C, kan en vandhane eller en magnetstyret ventil i tilførselsledningen for koldt vand åbnes,og først derefter sker brygningen i en af beholderne. Når brygningen er afsluttet, må termostaten atter stilles på 82°C. Kaffemaskinen har fra vandbadet en udtagning med hane for thevand. Her får man således vand til thebrygning med forskellige temperaturer ved forskellige tilfælde beroende på i hvilken tilstand maskinen befinder sig. Under varmholdningen får man 82° thevand,og under forberedelse til brygning stiger vandets temperatur, således at det under selve brygningen er omkring 98°C. Det er en ulempe, at varmholdningen af færdig kaffe under forberedelse til brygningen og under selve brygningen sker i den ene beholder ved temperaturer, som ligger over den anbefalede varmholdningstemperatur, hvilket medfører en nedsættelse af kaffens kvalitet. Bliver kaffen stående længe 1 beholderen, kan dette få stærk indvirkning på kaffens sammensætning og smag. Det er også en ulempe, at man dels må vente under forberedelsestiden for brygning og dels manuelt må omstille termostaten flere gange og observere, hvilken temperatur vandbadet har. Ved denne kendte beholder får man enten for koldt vand til brygning af the eller en for høj temperatur til varmholdning af kaffe.) brewing temperature or closer to 100 C. The brewing must be done at J about 97 ° C. The coffee machine therefore has means for supplying heat to the water bath with a control device, which is controlled by a ternate with a sensor body in the water bath. The thermostat normally stands at 2 145325 82 ° C, but must be adjusted before, for example, brewing. 98 ° C. The coffee machine has a thermometer that shows the temperature of the water bath. Once it reaches 98 ° C, a tap or magnet-controlled valve in the cold water supply line can be opened, and only then brewing takes place in one of the containers. When brewing is complete, the thermostat must be reset to 82 ° C. The coffee machine has a tap with tap for the water from the water bath. Here, water is thus obtained for brewing at different temperatures in different cases depending on the condition of the machine. During warming, 82 ° water is obtained and, in preparation for brewing, the temperature of the water rises, so that during brewing it is about 98 ° C. It is a disadvantage that the hot holding of finished coffee during preparation for brewing and during the brewing itself takes place in one container at temperatures above the recommended hot holding temperature, which results in a reduction in the quality of the coffee. If the coffee is left standing in the container for a long time, this can have a strong impact on the composition and taste of the coffee. It is also a disadvantage that one must wait during the preparation time for brewing and partly have to manually adjust the thermostat several times and observe the temperature of the water bath. At this known container, one gets either too cold water for brewing the tea or an excessively high temperature for holding coffee.

Nærværende opfindelse har til formål at tilvejebringe en kaffemaskine uden de nævnte ulemper, og maskinen ifølge opfindelsen er kendetegnet ved det, som er angivet i krav l's kendetegnende del.The present invention has for its object to provide a coffee machine without the disadvantages mentioned and the machine according to the invention is characterized by that which is characterized in the characterizing part of claim 1.

Med en sådan maskine kan driften automatiseres, således at den dels ikke kræver særlig overvågning og dels ikke manuelle omstilninger af maskinens organer. Det er desuden en fordel, at varmholdningen af den færdige kaffe hele tiden kan ske ved den anbefalede temperatur på 82°C, og at der altid i den første del af vandbadet findes varmt vand til thebrygning ved en højere temperatur end 82°C.With such a machine, the operation can be automated, so that it does not require special monitoring and partly manual adjustments of the machine's organs. It is also an advantage that the hot coffee of the finished coffee can always be kept at the recommended temperature of 82 ° C and that in the first part of the water bath there is always hot water for brewing at a higher temperature than 82 ° C.

Specielt ved det i den kendetegnende del af krav 3 anførte sikres, at man fra det todelte vandbad altid kan udtage hedt vand til brygning af the.Particularly, as stated in the characterizing part of claim 3, it is ensured that hot water can always be extracted from the two-part water bath for brewing the tea.

I det følgende beskrives opfindelsen under henvisning til tegningen, som viser et lodret snit igennem en kaffemaskine iføge opfindelsen.In the following, the invention is described with reference to the drawing, which shows a vertical section through a coffee machine according to the invention.

3 1453253 145325

Kaffemaskinen består af en vandtank 10 på ben 11, 12 og med et låg 13. I låget findes der to udtagninger for beholdere 14, 15. Maskinen har en tilførselsledning 16 for koldt vand med en grenledning 17 med en afspærringsventil 18. Gennem grenledningen 17 tilføres koldt vand, således at tanken 10 indeholder et vandbad 19» som når op til et niveau 20. Vandbadet er opdelt i to dele ved hjælp af en mellem beholderne 14, 15 anbragt klokke 21, hvis opadvendende bund 22 er beliggende over væskeniveauet 20 i tanken 10 og har et ventilationshul 23. I figuren er klokken 21 vist som en keglestub med den smalle ende vendt opad.The coffee machine consists of a water tank 10 on legs 11, 12 and with a lid 13. In the lid there are two outlets for containers 14, 15. The machine has a cold water supply line 16 with a branch line 17 with a shut-off valve 18. The branch line 17 is supplied cold water so that the tank 10 contains a water bath 19 »which reaches a level 20. The water bath is divided into two parts by means of a bell 21 arranged between the containers 14, 15, whose upwardly bottom 22 is located above the liquid level 20 in the tank. 10 and has a ventilation hole 23. In the figure, 21 is shown as a cone stub with the narrow end facing up.

Tilførselsledningen 16 for koldt vand har en anden gren 24 med en ventil 25 og er ført ind i den klokken 21 omgivende del 26 af vandbadet for derfra at gå ind i en anden del 27 af vandbadet ved klokken 21's nedre, åbne ende. Grenledningen 24 er inde i klokken 21 udformet som en rørslange 55 og er ført ud gennem klokkens bund 22.The cold water supply conduit 16 has a second branch 24 with a valve 25 and is inserted into the portion 21 of the water bath surrounding 21 at about 21 to enter a second portion 27 of the water bath at the lower open end of 21 o'clock. The branch conduit 24 is formed within the clock 21 as a tube hose 55 and is extended through the bottom 22 of the clock.

I grenledningen 24’s øvre del 28, som er udvidet, er en anden ledning 29 med en tætningsring 30 anbragt drejeligt. Ledningen 29 er ført i en vinkel ud ad til siden og har sin munding 31, som kan være forsynet med et fordelingsmundstykke beliggende midt over den i figuren til venstre liggende beholder 14, hvorpå der er anbragt en filterholder 32 med et kaffefilter 33 indeholdende kaffe 34 til brygning. I figuren vises pågående brygning,og færdig kaffe er vist i beholderen 14 op til et niveau 35. Hvis det ønskes, kan man brygge kaffe, så at beholderen fyldes, f.eks. som vist i den højre beholder 15 til et niveau 36. Denne beholder er dækket af et håndtagsforsynet låg 37. Varmt vand, f.eks. til brygning af the, kan udtages fra delen 27 gennem en ledning 38, som passerer gennem delen 26 af vandbadet 19 og har en hane 39. Beholderen 14 har ved bunden en aftapningsledning 40 for kaffe med en hane 41, og beholderen 15 har på tilsvarende måde en aftapningsledning 42 med en hane 43. Under hvert udløb for aftapningsledningerne 40 og 42 står en dråbeskål 44 og 45.In the widened portion 28 of the upper conduit 24, a second conduit 29 with a sealing ring 30 is pivotally positioned. Conduit 29 is angled outwardly and has its mouth 31, which may be provided with a dispensing nozzle located in the middle of the left-hand container 14 in the figure, on which is fitted a filter holder 32 with a coffee filter 33 containing coffee 34 for brewing. In the figure, ongoing brewing is shown and finished coffee is shown in the container 14 up to a level 35. If desired, coffee can be brewed so that the container is filled, e.g. as shown in the right container 15 to a level 36. This container is covered by a handle-provided lid 37. Hot water, e.g. for brewing the tea, can be taken out of the portion 27 through a conduit 38 which passes through the portion 26 of the water bath 19 and has a tap 39. The container 14 has at its bottom a coffee drain tap 40 with a tap 41, and the container 15 has correspondingly for example, a drain line 42 with a tap 43. At each outlet of the drain lines 40 and 42 stands a drip tray 44 and 45.

Opvarmning af vandbadet 19 sker ved hjælp af et elektrisk varmelegeme 46, som er anbragt i vandbadet under klokken 21 og forbundet med en strømkilde 47 gennem ledninger 48, 49, af hvilke den ene 49 passerer igennem en afbryder 50, som styres af en termostat 51 med en impulsledning 52 til et følerlegeme 53, der er an-Heating of the water bath 19 takes place by means of an electric heater 46, which is placed in the water bath below 21 o'clock and connected to a power source 47 through lines 48, 49, one of which passes through a switch 50 controlled by a thermostat 51 with a pulse line 52 to a sensor body 53 which is

Claims

4 funnel in the portion 26 of the water bath outside 21 o'clock and so close to the branch line 24 that it senses when the valve 25 is open to cold water. The thermostat 51 is fixed to a certain temperature, e.g. 82 ° C so that the portion 26. of the water bath 19 which surrounds at 21 o'clock can be kept at the warming temperature. When the thermostat 51 keeps the circuit breaker 50 closed, the heating of the portion 27 of the water bath takes place inside the clock 21. By convection flow in the water bath, illustrated by dashed lines 54, the hose 55 of the conduit 24 is heated to the brewing temperature and the wall of the clock 21 is heated. over to the surrounding portion 26 of the water bath. Parts 26 and 27 of the water bath are kept at a desired temperature. When the machine is in operation, the first portion 27 of the water bath is kept at the brewing temperature immediately below 100 ° C, and brewing can be carried out immediately without the need for an increase in temperature. The valve 25 is opened in the supply line and the desired brewing is immediately obtained. The second portion 26 of the water bath, which surrounds it at 21, is kept at a temperature around the recommended hot holding temperature. At the same time, one always has access to hot water, for example, brewing through the conduit 38 with high temperature water. . To facilitate the operation of the coffee machine, automatic can be used. The valve 18 is then designed as a solenoid valve and the current to it is connected through a circuit breaker. When the water in the tank 10 reaches the level 20, the current is interrupted by a level switch, which simultaneously connects the current to the heating element 46. The valve 25 is also designed as a solenoid valve and it is magnetized through another circuit breaker, whereby the brewing takes place. A flow regulator thereby determines the rate of water flow and a switching clock determines the time of brewing. Thus, brewing will end automatically when the right amount of coffee has been brewed. Claims.

A coffee machine having at least one brewing container (14,15) and brewing (41,43) provided for brewing and receiving a brewing cup (40,42), the container (14,15) being surrounded by a water bath, from which hot water for example tea brewing can be taken out, and with a coffee filter (33) disposed above the container (14), wherein a cold water supply line (16) has a shut-off valve (25) and passes through the water bath to an outlet (31). ) over the filter (33), characterized in that the water bath is divided into two parts (26,27), one of which (27) is passed by the supply line (16) and is provided with heating means (46) arranged to heat the contents of the supply line to the brewing temperature, while the second (26) is arranged to be heated by the first part (27) to a brewing coffee hot temperature and surround the container (14,15).

Coffee machine according to claim 1, characterized in that the first part (27) of the water bath is enclosed in a thermally conductive material, made below, in connection with the second part (26) of the water bath, which extends upwards above the liquid level (20) of the water bath and above it has a ventilation opening (25) for the discharge of steam possibly developed in the container (21).

Coffee machine according to claim 2, characterized in that the first part (27) of the water bath, provided with heating means (46), has a tap-provided hot water drain line (38) for e.g. tea facilities.

Coffee machine according to claims 1-3, characterized in that the cold water supply line (16) has two branches (17, 24) provided with a shut-off valve (18, 25), one of which (17) is connected to it. the second part (26) of the water bath which is kept at hot holding temperature during operation, while the second branch (24) first enters through the second part (26) of the water bath which is kept at hot holding temperature and then passes through the first part (27) of the water bath maintained at brewing temperature, whereby the heat supply through the heating means (46) in the first part (27) of the water bath is controlled by a thermostat (51) with a sensing body (53) arranged to respond to the temperature of the the second part (26) of the water bath near the colder supply line (24).