SE125482C1

SE125482C1 -

Info

Publication number: SE125482C1
Authority: SE
Publication date: 1949-01-01

Description

Uppfinnare: E. K. Clark. Inventor: E. K. Clark.

Prioritet beglird frdn den 17 april 1046 (Amerilcas forenta stater). Priority given from 17 April 1046 (United States of America).

Foreliggande uppfinning avser en diskmaskin av det slag, som är fOrsedd med en behallare eller ett karl med en inloppsventil, en avloppsventil, en omroringsanordning och med regleringsanordningar inklusive en tidbestamningsanordning for att paverka namnda ventiler och omroringsanordning i enlighet med ett visst disknings- och skoljningsforlopp, och uppfinningen har till andamal att astadkomma forbattrade anordningar for automatisk reglering av diskningsforloppet vid dylika maskiner, vilka regleringsanordningar latt kunna installas for att starta tvattperioden eller for att avbryta diskningsf Orloppet vid vilken tidpimkt som heist utan att andra diskningsforloppets langd eller ordningsfoljden inom detsamma. The present invention relates to a dishwasher of the type provided with a container or a vessel with an inlet valve, a drain valve, a stirring device and with control devices including a timing device for influencing said valves and stirring device in accordance with a certain washing and rinsing process, and the invention has for its object to provide improved devices for automatic control of the washing process at such machines, which control devices can be installed to start the washing period or to interrupt the washing process at any time without the length or sequence of the second washing process within the same.

Diskmaskinen enligt uppfinningen Urinetecknas huvudsakligen av en for hand paverkbar stoppanordning, som är anordnad att stanga inloppsventilen och att stanna omroringsanordningen och tidbestamningsanordningen, utan att inverka p. avloppsventilen. The dishwasher according to the invention is mainly characterized by a stop device which can be actuated by hand, which is arranged to close the inlet valve and to stop the stirring device and the timing device, without acting on the drain valve.

En utforingsform av en diskmaskin enligt uppfinningen visas sasom exempel pa bifogade ritning. Fig. 1 dr en sidovy av en diskmaskin, vid vilken regleringsapparaten enligt uppfinningen anvandes. Fig. 2, 3 och 4 visa sektioner av tidbestamningsmekanismen vid den i fig. 1 visade diskmaskinen, varvid fig. 2 visar en sektion efter linjen 1I—II i fig. 3, och fig. 3 och 4 visa sektioner efter lin- jernaoch IV—IV i fig. 2. Fig. 5 visar delvis i sidovy och delvis i sektion regleringshandtaget med samverkande delar. Fig. 6 dr ett schema Over de elektriska forbindningarna mellan tidbestamningsanordningen och de olika elektriska regleringsanordningarna i diskmaskinen. An embodiment of a dishwasher according to the invention is shown as an example in the accompanying drawing. Fig. 1 is a side view of a dishwasher in which the control apparatus according to the invention is used. Figs. 2, 3 and 4 show sections of the timing mechanism of the dishwasher shown in Fig. 1, Fig. 2 showing a section along the line 1I-II in Fig. 3, and Figs. 3 and 4 showing sections along the lines and IV —IV in Fig. 2. Fig. 5 shows partly in side view and partly in section the control handle with cooperating parts. Fig. 6 is a diagram of the electrical connections between the timing device and the various electrical control devices in the dishwasher.

Enligt fig. 1 ar regleringsanordningen enligt uppfinningen tillampad viii en diskmaskin av den s. k. hushallstypen, vilken be-star av ett karl eller behallare 10, van i diskgodset befinner sig under tvatt- eller diskningsforloppet, varvid de olika faten, tallri karna etc. aro placerade pa Ovre och nedre hallare eller hyllor, vilka antydas yid 11 och 12, och vilka kunna vara av vilken som heist konstruktion. Karlet 10 dr oppet upptill, sit att diskgodset kan inforas och uttagas, och oppningen upptill pa karlet 10 kan tillslutas medelst ett lampligt, pa gangjarn gaende lock 13. According to Fig. 1, the control device according to the invention is applied to a dishwasher of the so-called household type, which consists of a man or container 10, used in the dishes located during the washing or washing process, the various dishes, plates, etc. being placed on Upper and lower holders or shelves, which are indicated yid 11 and 12, and which may be of any heist construction. The tub 10 pulls open at the top, so that the dishes can be inserted and removed, and the opening at the top of the tub 10 can be closed by means of a light, hinged lid 13.

Varmt vatten infores i karlet 10 genom en ledning 14, som slutar i ett munstycke 15, vilket lampligen dr anbragt nara karlets topp. VattenstrOmningen genom ledningen. 14 regleras av en medelst en magnet manovrerad inloppsventil 16 av flagon lamplig konstruktion. Ventilen dr oppen, nar magneten far strom, och Or stangd, nar magneten Or stromEis. Hot water is introduced into the tub 10 through a conduit 14 which terminates in a nozzle 15, which is suitably located near the top of the tub. The water flow through the pipe. 14 is controlled by a magnetically actuated inlet valve 16 of flake lamp construction. The valve opens when the magnet is energized, and closed when the magnet is energized.

I karlets botten 17 finnes en central Mrdjupning 18, van i tvattvatten kan samlas. Mitt i denna fOrdjupning 18 finnes en. omroringseller stankanordning i form av en roterande propeller 19, som tjanar till att driva vattnet uppat och utat i karlet under tvatt- eller diskningsperioden, pa i och for sig kant att. Propellern 19 drives av en elektrisk motor 21, som dr fast vid karlets bottenvagg 18 forme-deist ett lampligt beslag 22. In the man's bottom 17 there is a central Mrdjupning 18, used in washing water can be collected. In the middle of this depression 18 there is one. agitator or stench device in the form of a rotating propeller 19, which serves to drive the water up and out into the vessel during the washing or washing period, per se to. The propeller 19 is driven by an electric motor 21, which is attached to the bottom wall 18 of the vessel, forming a suitable fitting 22.

Del anvanda vattnet utslappes fran kirlet genom en utloppsventil, vilken i sin helhet betecknas med 23, till en avloppsledning 24. Ventilen 23 kan vara av vilken som heist lamplig konstruktion och är forsedd med en magnet 25, som nar den magnetiseras sluter ventilen 23, och som later denna Oppna sig, nar magneten avmagnetiseras. Ett braddavloppsrOr 26, som Or oppet vid sin Ovre dude, Or forbundet med avloppsledningen 24 for att forhindra att karlet 10 fylles for mycket. Part of the water used is discharged from the chute through an outlet valve, which is designated in its entirety by 23, to a drain line 24. The valve 23 can be of any suitable construction and is provided with a magnet 25, which when magnetized closes the valve 23, and which leaves this Open when the magnet is demagnetized. A brad drain pipe 26, which is open at its upper dude, is connected to the drain line 24 to prevent the vessel 10 from being overfilled.

Anordningen for att inborn tvattmedel vattnet i maskinen vid ratt tidpunkt under diskningsforloppet be star av en j amforelsevis liten behallare 27, som dr oppen upptill och dr perforerad samt Or anbragt i lampligt ldge i karlet, t. ex. paden ovre diskgodshylIan eller -korgen 11, sasom visas i fig. I. 2— — Denna beliallare 27 rymmer en sats av ett korn- eller pulverformigt tvättmedel, som skall anvandas f Sr en enda tvättoperation. Be- hallaren skyddas mot det vatten, som ror sig nedat i kärlet fran den vid 15 inkomman- de strâlen, av ett lampligt holje, vilket kan utgoras av ett vanligt vänt dricksglas, thsom visas vid 28. Tydligt ar att nar vattnet frau munstycket 15 strSmmar nedat i karlet, sä skyddar detta glasholje 28 tvattmedlet fran att komma i beroring med detta vatten. Nar emellertid en viss vattenmangd har samlats i behallaren och detta vatten kastas uppat av propellern, sä kommer en stor mangd vat-ten upp genom Oppningen pa glaset och overskoljer tvattmedlet i behallaren 27, sa att tvattmedlet upploses i vattnet. Genom denna anordning kan man forst a.stadkomma en skOljning eller spolning av tvattgodset, varvid avloppsventilen halles oppen, sa att vattnet och de avspolade matresterna utstromma direkt till avloppet. Nar avloppsventilen blivit stangd och ratt mangd vatten samlats i karlet f Sr tvattningsoperationen, sâ kastas vattnet uppat av propellern och skoljer bort tvattmedlet fran behallaren 27 och upploser detsamma I vattnet. The device for inborn detergent the water in the machine at the right time during the washing process consists of a comparatively small container 27, which is open at the top and perforated and is placed in a suitable layer in the vessel, e.g. The dishwasher shelf or basket 11, as shown in Fig. I. 2— - This beveler 27 holds a batch of a granular or powdered detergent to be used for a single washing operation. The container is protected against the water moving down into the vessel from the at 15 incoming jet, by a suitable cover, which can be made of an ordinary inverted drinking glass, which is shown at 28. It is clear that when the water from the nozzle 15 flows down into the tub, this glass oil 28 protects the detergent from coming into contact with this water. However, when a certain amount of water has accumulated in the tank and this water is thrown upwards by the propeller, a large amount of water comes up through the opening on the glass and rinses the detergent in the tank 27, so that the detergent is dissolved in the water. By means of this device it is first possible to effect a rinsing or rinsing of the laundry, whereby the drain valve is kept open, so that the water and the rinsed food residues flow out directly to the drain. When the drain valve has been closed and a large amount of water has been collected in the tank before the washing operation, the water is thrown upwards by the propeller and rinses the detergent away from the container 27 and dissolves the same in the water.

Stromtillforseln till motorn 21 och de magnetmanovrerade ventilerna 16 och 23 slutes och brytes i fOljd efter vartannal genom regleringsanordningar, sit att tvatt- och skaljningsforloppet uppdelas i ett flertal steg. Enligt foreliggande uppf inning utfores detta automatiskt av en tidbesthmningsmekanism, som i sin helhet betecknas med 31, och som lampligen dr fast vid motorn 21 medelst en konsol 32. The power supply to the motor 21 and the magnetically operated valves 16 and 23 are closed and broken in succession after each other by control devices, so that the washing and scaling process is divided into several stages. According to the present invention, this is done automatically by a timing mechanism, which in its entirety is denoted by 31, and which is suitably attached to the motor 21 by means of a bracket 32.

Sasom visas i fig. 2-4 bestar tidbestamningsanordningen 31 av ett holje 33, van i finnes ett flertal strombrytare 34, 35 och 36, av vilka strombrytarna 34 och 35 reglera strihntillftIrseln till avdoppsventilen 23 och vatteninloppsventilen 16 resp. Strombrytaren 36 är kopplad i serie med huvudmotorn 21 och en tidbestamningsmotor 37, linen bryter °eh sluter strombrytarna 34, 35 och 36 i viss ordnin.gsfoljd sh.som nedan beskrives. As shown in Figs. 2-4, the timing device 31 consists of a housing 33, in which there are a plurality of circuit breakers 34, 35 and 36, of which the circuit breakers 34 and 35 regulate the supply to the drain valve 23 and the water inlet valve 16 and 16, respectively. The switch 36 is connected in series with the main motor 21 and a timing motor 37, the line breaks and the switches 34, 35 and 36 close in a certain order sh as described below.

I fig. 6 betecknas stromkallan for apparaten av linjeledarna L1 och L2, vilka exempelvis kunna vara anslutna till en vanlig hushallsledning for 1-volt och 15 ampere. Av fig. 6 framgar att avloppsventilen 23 regle- ras enbart av stromblyLaren 34. Enligt uppfin- ningen aro emellertid strombrytaren 36, som reglerar motorerna 21 och 37, och strambrytaren '35, som reglerar vatteninloppsventilen 16, kopplade i serie med en linjestrombrytare 38, vilken omnamnes har nedan. In Fig. 6, the power source for the apparatus is denoted by the line conductors L1 and L2, which may, for example, be connected to a standard household line for 1 volt and 15 amperes. From Fig. 6 it can be seen that the drain valve 23 is controlled only by the circuit breaker 34. According to the invention, however, the circuit breaker 36, which regulates the motors 21 and 37, and the circuit breaker '35, which regulates the water inlet valve 16, are connected in series with a line circuit breaker 38. which omname has below.

Brytandet och slutandet av strombrytarna 34, 35 och 36 astadkommes av de olika kern-manna 39, 40 och 41. Samtliga strombrytare 34, 35 och 36 strava att stit i franslaget lage, och de slutas, nar de paverkas av de hogre delarna eller kamytorna pa respektive kam mar. Kammarna 39, 40 och 41 aro fastkiIade, sasom visas vid 42, vid en axe! 43, vilken drives med ett jamforelsevis lagt varvtal, exempelvis ett vary pa 15 minuter, av motorn 37. Sasom visas i fig. 2 driver motorn 37 ett med lag hastighet roterande kuggdrev 44, vilket ingriper med kugghjulet 45, som gar lost pa axeln 43 men formar driva denna axe! 43 genom en. lamplig kopplingsmekanism, sasom exempelvis en fjaderkoppling 46. Andamalet med kopplingen 46 ar att majligg8ra en viss vridningsr8relse av axeln 43 for hand omkring dess vridningsaxel, nar man skall paborja ett tvattningsforlopp, sasom beskrives Mr nedan. Nan namnda axel paverkas for hand, sitsom har nedan beskrives, vridas kammarna och axeln 43 i forhallande till kugghjulet 45, men nar motorn 37 startar, sit drives axeln 43 av kugghjulet 45 genom kopplingen 46. The breaking and closing of the circuit breakers 34, 35 and 36 is effected by the various cores 39, 40 and 41. All circuit breakers 34, 35 and 36 are punished to stand in the fringe layer, and they are closed when they are affected by the right parts or cam surfaces pa respective kam mar. The cams 39, 40 and 41 are fixed, as shown at 42, at one axis! 43, which is driven at a comparatively set speed, for example a vary of 15 minutes, by the motor 37. As shown in Fig. 2, the motor 37 drives a low-speed rotating gear 44, which engages the gear 45, which moves loosely on the shaft 43. but molds drive this ax! 43 through a. suitable coupling mechanism, such as a spring coupling 46. The purpose of the coupling 46 is to allow a certain rotational movement of the shaft 43 by hand about its axis of rotation, when a washing process is to be started, as described below. When said shaft is actuated by hand, as described below, the cams and shaft 43 are rotated in relation to the gear 45, but when the engine 37 starts, the shaft 43 is driven by the gear 45 through the clutch 46.

Den ovannamnda paverkan for hand av axeln 43 astadkommes medelst ett sparrhjul 47, som ocksa ar fastkilat pa axeln och vrider sig med denna. Sparrhjulet 47 Sr for-sett med en inskarning 48, med vilken en sparrhake 49 ingriper, far apparaten icke Sr i bruk, sasom visas pa ritningen. Denna sparrhake ar vid 51 vridbart fast vid en arm 52, som Sr lost lagrad pa axeln, sit att den kan vridas i forhallande till derma. Sparrhaken 49 tryckes hela tiden i beroring med sparrhjulet 47 av en fjader 53. ovanstaende beskrivning framghr, att nar armen 52 for hand fores motnrs i fig. 3 °ch. 6, bibringas sparrhjulet 47 och axeln 43 en tillracklig vridningsrorelse for att kamytan 41a pa kammen 41 skall paverka strombrytaren 36. Denna strombrytare slutes da, sit att motorerna 21 och 37 b6rja att arbeta, och motorn 37 kommer da att vrida kanamarna 360°, varigenom ett tvattningsforlopp fullbordas, vid vans slut strombrytaren 36 franslits. Kamytorna 40a, 40b och 40c pa kammen 40 och kamytorna 39a, 39b och 39c pa kammen 39 sluta sine respektive strombrytare 35 och 34 i tur och ordning under det namnda tvattningsforloppet och reglera saledes tillforsel av vatten till karlet och utloppet darifran. The above-mentioned actuation by hand of the shaft 43 is effected by means of a ratchet wheel 47, which is also wedged on the shaft and rotates with it. The ratchet wheel 47 is provided with a notch 48, with which a ratchet hook 49 engages, the appliance does not come into use, as shown in the drawing. This ratchet is at 51 rotatably fixed to an arm 52, which is loosely mounted on the shaft, so that it can be rotated in relation to it. The ratchet 49 is constantly pressed into contact with the ratchet wheel 47 by a spring 53. The above description shows that when the arm 52 is moved by hand in Fig. 3 ° ch. 6, the ratchet wheel 47 and the shaft 43 are subjected to a sufficient rotational movement for the cam surface 41a on the cam 41 to actuate the switch 36. This switch then closes when the motors 21 and 37 begin to operate, and the motor 37 will then rotate the cams 360 °, whereby a washing process is completed, at the end of which the circuit breaker 36 is fringed. The cam surfaces 40a, 40b and 40c on the cam 40 and the cam surfaces 39a, 39b and 39c on the cam 39 close their respective switches 35 and 34 in turn during the said washing process and thus regulate the supply of water to the vessel and the outlet therefrom.

Armen 52 fores ocksa for hand men i medurs riktning, om maskinskOtaren 8nskar stanna maskinen under ett tvattningsforlopp. Hanvid kommer ett med armen 52 rorligt finger 55 i beroring med ett utsprang 56 pa det rOnliga organet i en strombrytare 38 och Iran-slat denna. Denna strombrytare 38 ar eljest alltid sluten, sit att den saledes endast Sr oppen nfir den paverkas av fingret 55. Nar strOmbrytaren 38 franslas, bliva bade metorerna 21 och 37 overksamma, och magneten for vatteninloppsventilen 16 avmagnetiseras. Foljaktligen kan maskinskotaren utan risk fOra in handerna i karlet 10. Brytandet av strombrytaren 38 medf Or emellertid icke att magneten for avloppsventilen 23 avmagneti- — 1.25482 — seras, varfor det diskvatten som for tillfallet finnes i karlet icke forloras. Nar strombrytaren 38 ater slates, sh komma motorerna 21 och 37 Ater i gang och magneten for inloppsventilen 16 magnetiseras igen, under fOrutsattning att strombrytaren 35 ar sluten vid tillfallet i fraga. The arm 52 is also moved by hand but in a clockwise direction, if the machine operator wishes to stop the machine during a washing process. In this case, a finger 55 movable with the arm 52 comes into contact with a projection 56 on the movable member of a circuit breaker 38 and Iran. This switch 38 is otherwise always closed, so that it is only open when it is actuated by the finger 55. When the switch 38 is turned off, both the meters 21 and 37 become inactive, and the magnet for the water inlet valve 16 is degaussed. Consequently, the machine forwarder can without risk insert the hands into the vessel 10. However, the breaking of the circuit breaker 38 does not cause the magnet for the drain valve 23 to be degaussed, so that the washing water which is incidentally in the vessel is not lost. When the circuit breaker 38 is turned on again, the motors 21 and 37 start again and the magnet for the inlet valve 16 is magnetized again, provided that the circuit breaker 35 is closed at the time in question.

Armen 52 paverkas hela tiden i medurs riktning av en fjader 50, som tjanar till att aterOra armen 52 till dess neutrala vilolage, S0111 visas pa ritningen, sedan armen har f8rts i moturs riktning till startlaget. The arm 52 is constantly actuated in the clockwise direction by a spring 50, which serves to return the arm 52 to its neutral resting position, S0111 is shown in the drawing, after the arm has been moved in the counterclockwise direction to the starting layer.

Den beskri-vna rorelsen av armen 52 astadkommes medelst ett fOr hand paverkbart organ eller handtag 57, vilket är vridbart i ett stod 58, som ar fast nara ovre kanten pa karlet 10, shsom visas i fig. 1. Stodet 58 kan vara fast vid karlet eller uppbaras i ett icke visat holje for karlet. Handtaget 57 paverkar en arm 59, som ar forbunden med armen 52 genom en lank 61. Med handtaget 57 ror sig ocksa ett kamsegment 62, med vilket en lamplig fjader 63 as i ingrepp, sasom visas I fig. 5. Segmentet 62 har en urtagning 64, i vilken fjadern 63 ingar, d handtaget ãr i det visade medellaget. Segmentet hat ocksa en andra urtagning 65, i vilken fjadern nar handtaget ãr i stopplage. The described movement of the arm 52 is effected by means of a manually actuable member or handle 57, which is rotatable in a post 58, which is fixed near the upper edge of the vessel 10, as shown in Fig. 1. The post 58 may be fixed at the vessel or carried in an undiscovered casing for the vessel. The handle 57 acts on an arm 59, which is connected to the arm 52 by a length 61. With the handle 57 also moves a cam segment 62, with which a lamp spring 63 is engaged, as shown in Fig. 5. The segment 62 has a recess 64, in which the spring 63 engages, the handle is in the shown middle layer. The segment also has a second recess 65, in which the spring when the handle is in the stop position.

Fjadern 63 är tillrackligt stark for att hindra att armen 59 och segmentet 62 ror sig under inverkan av fjadern 50, da fjadern 63 fir i ingrepp med endera urtagningen 64 eller 65. Fjadern 50 kommer emellertid att hterfora handtaget 57 frau dettas startlage till dess medellage sâ snart maskinskotaren slipper handtaget 57 under startningen. The spring 63 is sufficiently strong to prevent the arm 59 and the segment 62 from moving under the action of the spring 50, as the spring 63 engages either the recess 64 or 65. However, the spring 50 will return the handle 57 from its starting position to its average position so as soon as the forwarder releases the handle 57 during start-up.

Nar maskinen tages i anvandning, anbringar maskinskotaren diskgodset pa hallarna eller hyllorna 11 och 12 och fyller behallaren 27 med en lamplig mangd tvattmedel, varefter glaset 28 eller nagot annat lampligt holje placeras Over behallaren 27. Locket 13 Mlles sedan ned, och handtaget 57 fores till startlaget. Sasom redan beskrivits fores harvid armen 52 moturs tillrackligt fOr att kamytorna 41a och 40a skola paverka de respekti-ve strombrytarna 36 och 35, varigenom huvudmotorn 21 och tidbestamningsmotorn 37 samt magneten for vatteninloppsventilen 16 fa strom. Vid denna tidpunkt Or emellertid utloppsventilen 23 iippen, enar kamytan 39a pa kammen 39 icke Or i ingrepp med strombrytaren 34. When the machine is in use, the machine forwarder places the dishes on the shelves or shelves 11 and 12 and fills the container 27 with a suitable amount of detergent, after which the glass 28 or some other suitable housing is placed over the container 27. The lid 13 is then lowered, and the handle 57 is moved to the starting team. As already described, the arm 52 is moved counterclockwise sufficiently for the cam surfaces 41a and 40a to actuate the respective circuit breakers 36 and 35, whereby the main motor 21 and the timing motor 37 and the magnet for the water inlet valve 16 receive current. At this time, however, the outlet valve 23 opens, the cam surface 39a of the cam 39 does not engage with the circuit breaker 34.

Vatten sprutar nu nedat frau munstycket 15 Over diskgodset for att skolja bort matrester Iran detta, vilka avga med vattnet till utloppet 24. Harunder avlagsnas icke blott losa matrester fran diskgodset utan Oven sadant kallt vatten, som filmes i r8rledningen melIan varmvattenbehallaren och diskmaskinen avgar, sa att nar tvattningsoperationen borjar kommer varmt vatten med den i varmvattenbehallaren radande temperaturen till anvandning. Water now sprays down from the nozzle. that when the washing operation begins, hot water with the temperature radiating in the hot water tank comes into use.

Efter omkring 1 minuts drift sluter kamytan 39a strombrytaren 34 for magneten till avloppsventilen 23, som darigenom stanges. Vatten samlas nu nedtill i karlet 10 fOr att kastas uppat och utat i karlet av propellern. Ratt vattenmangd kommer att vara inford i behallaren 10, nar kamytan 40a pa kammen 40 gar ur beroring med strombrytaren 35, sa att denna franslas. Det uppaisprutade vattnet upploser tvattmedlet i behallaren 27 shsom ovan namnts. Del med hog hastighet av propellern 19 uppatkastade vattnet rengor grundligt diskgodset. After about 1 minute of operation, the cam surface 39a closes the circuit breaker 34 for the magnet to the drain valve 23, which is thereby closed. Water is now collected at the bottom of the tank 10 to be thrown up and out into the tank by the propeller. The right amount of water will be introduced into the container 10, when the cam surface 40a on the cam 40 comes out of contact with the switch 35, so that it is removed. The sprayed water dissolves the detergent in the container 27 as mentioned above. Part with high speed of the propeller 19 thrown up the water thoroughly cleans the dishes.

Tvattningsoperationen avslutas, da kamytan 39a har forflyttats tillra.ckligt for att 10- ta strombrytaren 34 sla dram, varefter avloppsventilen oppnas och det smutsiga diskvattnet utslappes genom avloppsledningen 24. The washing operation is terminated when the cam surface 39a has been moved sufficiently to remove the circuit breaker 34, after which the drain valve is opened and the dirty dish water is discharged through the drain line 24.

Den f Or sta skoljningsoperationen borjar, nOr kamytan 40b p5. kammen 40 astadkommer tillslag av strombrytaren 35 och darigenom oppnar vatten-ventilen 16. Avloppsventilen Mlles oppen under en kort tid, omkring 1 nil-nut, varunder tvattmedel eller Visa matrester som forefinnas pa diskgodset och pa tvattmaskinen skoljes ned till utloppet. The first rinsing operation begins when the surface 40b p5. the cam 40 engages the switch 35 and thereby opens the water valve 16. The drain valve Mlles open for a short time, about 1 nil-nut, during which detergent or Vis food residues present on the dishes and on the washing machine are rinsed down to the outlet.

Nasta steg Or att strombrytaren 34 tillslas av kamytan 39a ph kammen 39 for att stanga utloppsventilen. Ratt mangd skoljvatten infores nu i karlet och kringkastas av propellern. Inforandet av detta vatten slutar, nar kamytan 40b gar ur beroring med strombrytaren 35. Skoljningen Hied rent vatten slutar, nar kamytan 39b gar ur beroring med strombrytaren 34, varigenom stromkretsen till avloppsventilen 23 brytes, sa. att denna ventil oppnas och later det anvanda skoljvattnet stromma ut. En tredje fyllning och en andra skoljning kunna astadkommas medelst kamytorna 40c och 39c, och denna skoljning -Mgr pa samma satt som just beskrivits. Vid slutet av den sista sk8ljningsperioden gar kamytan 39c ur berOring med strombrytaren 34, sa att avloppsventilen 23 oppnas och later det sista skoljvattnet str8mma ut. Samtidigt gar ocksa. kamytan 41a pa kammen 41 ur beroring med strombrytaren 36, som slar ifran, sa att bade huvudmotorn 21 och motorn 37 stanna. Next step Or that the circuit breaker 34 is turned on by the cam surface 39a ph cam 39 to close the outlet valve. A large amount of rinsing water is now introduced into the tank and broadcast by the propeller. The introduction of this water stops when the cam surface 40b goes out of contact with the circuit breaker 35. The rinsing Hied clean water ends when the cam surface 39b goes out of contact with the circuit breaker 34, whereby the circuit of the drain valve 23 is broken, said. that this valve is opened and allows the used rinsing water to flow out. A third filling and a second rinsing can be achieved by means of the cam surfaces 40c and 39c, and this rinsing -Mgr in the same way as just described. At the end of the last rinsing period, the cam surface 39c goes out of contact with the switch 34, so that the drain valve 23 opens and lets the last rinsing water flow out. At the same time go too. the cam surface 41a on the cam 41 out of contact with the switch 36, which turns off, so that both the main motor 21 and the motor 37 stop.

Nar pa ovan beskrivet satt maskinskotaren har fort handtaget 57 sa, att apparaten har satts i gang, sa kommer till foljd av spanningen i fjadern 50 bade handtaget 57 och armen 52 att aterforas till det i fig. 5 visade neutralla-get. Under hela tvattningsperioden kvarsta dessa delar i detta lage, i vilket de kvarhallas av fjadern 63, som da Or i ingrepp med urtagningen 64. Om, under det att maskinen Or i gang, skotaren av nagot skal onskar komma at nagot i maskinen, kan han fora handtaget 57 till deltas stopplage, vani handtaget kvarhalles genom att fjadern 63 da Or i ingrepp med urtagningen 65. Nil. handtaget 57 Or i detta stopplage, sa har ock- 4— — sa, sasom redan sagts, fingret 55 pa armen 52 fort strombrytaren 38 till franslaget lage. Foljaktligen är str5mmen bruten till huvudmotorn och till tidhestamningsmotorn saval som till vattenventilen. Skotaren kan sfiledes fritt komma At det inre av maskinen. Det i karlet forefintliga tvatt- eller skoljvattnet kvarhalles emellertid i detta, enar franslaendet av strOmbrytaren 38 icke liar flagon inverkan ph avloppsventilen. When on the above-described machine the forwarder has fastened the handle 57 so that the apparatus has been started, then as a result of the tension in the spring 50 both the handle 57 and the arm 52 will be returned to the neutral layer shown in Fig. 5. Throughout the washing period, these parts remain in this layer, in which they are retained by the spring 63, which then Or engages in the recess 64. If, while the machine Or is running, the forwarder of something wishes to get something in the machine, he can fora the handle 57 to the delta stop stop, the vani handle is retained by the spring 63 da Or in engagement with the recess 65. Nil. the handle 57 Or in this stop position, so also has, as has already been said, the finger 55 on the arm 52 fast the circuit breaker 38 to the fringe layer. Consequently, the power is cut off to the main engine and to the timing engine as well as to the water valve. The forwarder can sfiledes freely come At the interior of the machine. However, the water or rinsing water present in the vessel is retained therein, the friction of the switch 38 does not affect the flaw on the drain valve.

Av ovanstaende beskrivning framgar, att uppfinningen ger en forbattrad reglering for ett automatiskt arbetsforlopp hos en diskmaskin, vilken regleringsanordning latt kan paverkas sa att arbetsforloppet pabOrjas nar som heist och driften av maskinen kan avstannas vid vilken som heist punkt under arbetsforloppet. Nar maskinen liar stannats pa detta salt, kan skOtaren latt komma at diskgodset i det inre av karlet, enar huvudmotorn liar stannats. lngen tvattlosning forloras emellertid, enar i stopplaget regleringsanordningen icke inverkar pa avloppsventilen. Avloppsventilen regleras uteslutande av tidbestamningsanordningen. Arbetsforloppet kan av skotaren startas och stoppas efter behag, utan att detsammas langd forandras och utan andring av ordningsfolj den mellan de olika stegen i forloppet. From the above description it appears that the invention provides an improved control for an automatic workflow of a dishwasher, which control device can be easily actuated so that the workflow is started when the lift and the operation of the machine can be stopped at any hot spot during the workflow. When the machine has been stopped at this salt, the scooter can cause the dishes in the interior of the tank to come to a standstill if the main engine is stopped. However, no washing solution is lost, unless in the stop layer the control device does not act on the drain valve. The drain valve is regulated exclusively by the timing device. The workflow can be started and stopped by the forwarder at will, without changing its length and without changing the order between the different steps in the process.

Claims

Patent claim:

Dishwasher, provided with a container (10) or a vessel riled an inlet valve (16), a drain valve (23), a stirring device (21, 19) and with regulating devices (39, 41) including a timing device (37) for actuating said valves and agitating device in accordance with a certain washing and rinsing process, may be characterized by a manually operable stop device (55, 38), which is arranged to close the inlet valve (16) and to stop the agitating device (21) and the timing device ( 37), without affecting the drain valve (23).

A dishwasher according to claim 1, characterized in that the control devices comprise a manually actuable member (57), which is movable from a neutral layer either to a starting position for actuating the timing device (37) or to an eleven stop position for actuating the stop device (55, 38).

Dishwasher according to patent claim 2, characterized in that the manually actuable member (57) is arranged to be automatically returned from the starting layer to the neutral layer.

Dishwasher according to claim 1, 2 or 3 with electrically actuated control devices, characterized in that the stop device comprises a line switch (38) which does not enter the circuit (34, 25) of the drain valve (23) and which opens in it. The stop bearing of the actuatable member (57) by hand.

5. A dishwasher according to any one of the preceding claims, characterized in that the Mr hand actuable member (57) is provided with a retaining device (62-65) which holds the member (57) in the stop position until the member is manually returned from this position. Stockholm 1959. Kungl. Boktr. P. A. Norstedt & SOner 490090 .37 21 ELI 40 b 4,0c39c 4-3 39 b 36 F i. G. GENERALSTABENS LITO