NO750889L

NO750889L -

Info

Publication number: NO750889L
Application number: NO750889A
Authority: NO
Inventors: T Olsson
Original assignee: Ol
Priority date: 1974-04-23
Filing date: 1975-03-17
Publication date: 1975-10-24
Also published as: FI751197A; SE7405425L; SE382909B; DK137975A

Description

Oppfinnelsen angår en elektrisk brodristerThe invention relates to an electric toaster

av den type hvor brodskiver eller lignende legges inn ovenfra i et rom mellom på begge sider av dette beliggende, elektrisk oppvarmede strålevarme-elementer og der befinner seg i en .1 hovedsaken vertikal stilling, og etter ferdig-rlsting utmates fra rommet i retning nedover til et oppsamlingssted som ligger under rommet og eventuelt ved siden av dette, og på oppsamlingsstedet fortrinnsvis inntar en i hovedsaken horisontal stilling. of the type where bridging discs or the like are inserted from above into a space between electrically heated radiant heating elements located on both sides of this and are located in a .1 mainly vertical position, and after completion of stitching are discharged from the space in a downward direction to a collection point which is located below the room and possibly next to it, and at the collection point one preferably takes a mainly horizontal position.

Ved brod.ristere av ovennevnte type unngås den ofte kompliserte mekanisme som kreves ved brødristere hvor de ferdigristede brodskiver fores automatisk oppover gjennom en ovre åpning i det rom i hvilket brodskivene er beliggende under ristingen. Ved at skivene etter utfort risting ved fjernelse av et hinder på grunn av sin egen tyngde faller eller glir ned gjennom en nedre åpning i ristingsrommet og til et oppsamlingssted nedenfor og eventuelt ved siden av dette rom, oppnås mulighet til å utfore fjerningsmekanismen på enkel måte ved automatisk drift, og til å utfore denne mekanisme slik at den etter utfort risting av et sett brodskiver automatisk innstiller seg i utgangsstillingen ved hjelp av en forholdsvis enkel anordning. With brod.toasters of the above type, the often complicated mechanism required for toasters is avoided, where the pre-toasted bread slices are fed automatically upwards through an upper opening in the room in which the bread slices are located during toasting. By the fact that the discs, after the shaking has been carried out when removing an obstacle due to their own weight, fall or slide down through a lower opening in the shaking room and to a collection point below and possibly next to this room, it is possible to carry out the removal mechanism in a simple way by automatic operation, and to carry out this mechanism so that, after shaking a set of bridging discs, it automatically adjusts to the initial position by means of a relatively simple device.

En elektrisk brodrister er ifblge oppfinnelsen kjennetegnet ved de trekk som er angitt i de etterfolgende patentkrav. According to the invention, an electric toaster is characterized by the features specified in the following patent claims.

Oppfinnelsen skal beskrives nærmere i det folgende i forbindelse med et utforelseseksempel under hen-visning til tegningene, der fig, 1 viser et perspektivisk bilde av en brodrister ifolge oppfinnelsen, fig. 2 viser et sid.eriss av brødristeren, sett fra hoyre og med. hoyre gavl fjernet, idet den automatisk fungerende mekanisme er vist i den stilling hvor brødristeren er strømførende, fig. 3 viser samme mekanisme i en stilling hvor brødristeren nettopp har slått av strømmen, og fig.<>>+ viser et koblingsskjema av den elektriske krets i brødristeren. The invention shall be described in more detail in the following in connection with an exemplary embodiment with reference to the drawings, where Fig. 1 shows a perspective view of a brodrier according to the invention, Fig. 2 shows a side view of the toaster, seen from the right and with. right end panel removed, as the automatically functioning mechanism is shown in the position where the toaster is live, fig. 3 shows the same mechanism in a position where the toaster has just switched off the power, and fig.<>>+ shows a connection diagram of the electrical circuit in the toaster.

For oversiktens skyld er koblingstrådene ikke inntegnet på fig. 2 og 3 ? m©n £°T en fagmann vil det være selvinnlysende hvordan disse tråder kan legges og kobles med rettledning av det på fig. k- viste koblingsskjema. For the sake of clarity, the connecting wires are not shown in fig. 2 and 3? to a person skilled in the art, it will be self-evident how these wires can be laid and connected with the guidance of that in fig. k- shown connection diagram.

På fig. 1 betegner 1 en metallkappe som omgir brødristerens ristingsrom eller -sjakt og er forsynt med. en åpning 2 gjennom hvilken brodskivene nedmates til ristings-stilling. Under ristingen hindres brodskivene i å gli ned på et gitter 6 ved hjelp av en klaff 7. Gitteret 6 utgjor opp-samlingsplass for ferdigristed.e skiver og har fortrinnsvis i hovedsaken horisontal stilling, hvilket medfører lavere hovde på brødristeren og storre tilgjengelighet til de ristede skiver. To gavler 3°g<!>+ holder kappen 1 sammen med gitteret 6 og øvrige deler ved hjelp av skruer 8. En spesiell skrue 9 fastholder en kappe 5 ved den hoyre gavl 3>hvilken kappe inneslutter mekanismen for den automatisk drift av brodristeren. Av denne mekanisme er på fig. 1 bare vist In fig. 1 denotes a metal casing that surrounds the toaster's toasting chamber or shaft and is provided with. an opening 2 through which the brodder disks are fed down to the shaking position. During toasting, the bread slices are prevented from sliding down onto a grid 6 by means of a flap 7. The grid 6 forms a collection area for finished toasted slices and preferably has a mainly horizontal position, which results in a lower head of the toaster and greater accessibility to the toasted discs. Two gables 3°g<!>+ hold the cover 1 together with the grid 6 and other parts by means of screws 8. A special screw 9 holds a cover 5 at the right end 3>which cover encloses the mechanism for the automatic operation of the bridge shaker. Of this mechanism, fig. 1 only shown

•en del av et påvirkningsorgan 10 for risterens strømbryter, samt et innstillingsorgan 11 for regulering av ristingstid.en. Fig. 2 viser risteren sett fra hoyre med. gavlen 3 fjernet, hvorved mekanismen for regulering av brodskivenes automatiske utmatning kommer til syne. Påvirkningsorganet 10, som er leddet til en. tapp 15 5 er trykt ned slik at en hevarm 12, som er leddet til en tapp 16, er blitt svinget og ved hjelp av en hake 17 har fort en skinne 13 mot virkningen av en fjær k- 0 til en stilling der et fremspring 14- på skinnen griper inn i en hake på en bimetallremse 19. Bimetallremsen 19 er forsynt med en motstandsvikling 21 som er v-iklet rundt remsen og elektrisk isolert fra denne ved hjelp av et skikt 20. Ved oppvarming med en strom gjennom viklingen 21 boyer remsen 19 seg vinkelrett på papirets plan og går etter en viss tid ut av inngrep med fremspringet lh. Skinnen 13 blir av fjæren<!>+0 da fort tilbake til utgangsstillingen og strommen brytes ved at skinnen påvirker mikrobrytere 38 og 39 som er montert side om side, og der bare den ene bryter er vist på tegningen. Den tid. som går for s tr ommen brytes, reguleres ved hjelp av innstillingsorganet eller rattet 11 som forårsaker mer eller mindre innskruing på en skrue 2h av en kam 25 som ligger an mot bimetallremsen 19. Denne er dreibart lagret på en aksel 22 og er forsynt med en stopp-skrue 23. Når skinnen 13 ved ristingstidens slutt fores tilbake til utgangsstillingen, slik som vist på fig..2, blir en sperre 27 som er svingbart montert ved 31°g ved hjelp av en fjær holdes i en slik stilling at den sperrer klaffen 7 mot å falle ned, utlost av et organ 26 som er svingbart i den ene retning og er montert på skinnen 13. Klaffen 7 er svingbart opphengt ved hjelp av to tapper 29 nær den ene langsgående kant, og nær den tapp 29 som er beliggende over mekanismen, er svingbart anordnet den ene ende av en arm 33 hvis andre ende med redusert tykkelse er fort gjennom ytter-enden av en annen bimetallremse eller bimetallstrimmel 35 hvis bakre ende er fastskrudd til kappen 5 ved 36. Bimetallstrimmelen 35 oppvarmes ved hjelp av en elektrisk isolert vikling 37 som passende er seriekoblet med viklingen 21 og med brødristerens varmestrålende motstandsvikling4-2, som på begge sider omgir skivene ved ristingen, idet en holde-anordning Lt-1 i form av et gitter hindrer direkte berøring mellom brodskiver og varme-element4-2. • a part of an influencing device 10 for the shaker's power switch, as well as a setting device 11 for regulating the shaking time. Fig. 2 shows the shaker seen from the right with the gable 3 is removed, whereby the mechanism for regulating the automatic output of the bridging discs comes into view. The influencing organ 10, which is linked to a. pin 15 5 is pressed down so that a lifting arm 12, which is linked to a pin 16, has been swung and by means of a hook 17 has a rail 13 against the action of a spring k-0 to a position where a projection 14 - on the rail engages in a hook on a bimetallic strip 19. The bimetallic strip 19 is provided with a resistance winding 21 which is wound around the strip and electrically isolated from it by means of a layer 20. When heated with a current through the winding 21, the strip bends 19 is perpendicular to the plane of the paper and after a certain time goes out of engagement with the protrusion lh. The rail 13 is released by the spring<!>+0 then quickly returns to the starting position and the current is broken by the rail affecting micro switches 38 and 39 which are mounted side by side, and where only one switch is shown in the drawing. That time. which runs before the current is broken, is regulated by means of the setting device or the steering wheel 11 which causes a screw 2h of a cam 25 which rests against the bimetallic strip 19 to be more or less screwed in. This is rotatably mounted on a shaft 22 and is provided with a stop screw 23. When the rail 13 is fed back to the starting position at the end of the shaking time, as shown in fig..2, a latch 27 which is pivotably mounted at 31°g is held by means of a spring in such a position that it latches the flap 7 against falling down, released by a member 26 which is pivotable in one direction and is mounted on the rail 13. The flap 7 is pivotably suspended by means of two pins 29 near one longitudinal edge, and near the pin 29 which is located above the mechanism, one end of an arm 33 is pivotably arranged, the other end of which is of reduced thickness is passed through the outer end of another bimetallic strip or bimetallic strip 35, the rear end of which is screwed to the jacket 5 at 36. The bimetallic strip 35 is heated at h yelp of an electrically insulated winding 37 which is suitably connected in series with the winding 21 and with the toaster's heat-radiating resistance winding 4-2, which surrounds the slices on both sides during toasting, a holding device Lt-1 in the form of a grid preventing direct contact between toast slices and heating element 4-2.

Fig. k viser koblingsskjernaet for brødristeren hvor det benyttes to mikrobrytere 38 og 39-På figuren er benyttet samme henvisningstall som for tilsvarende deler på fig. 2 og 3. Mikrobryternes påvirkningsorganer 4-3 5 som ved 'strømmens innkobling inntrykkes av skinnen 13 på fig. 2 og 3?forårsaker at kontakten mellom ai og a2, henholdsvis bi og b2 smekker over til kontakt, mellom al og a35henholdsvis bl og b3. En lukket stromkrets oppnås da fra den venstre stopselstift, kontakten bl, kontakten b3, motstanden 37, motstanden Fig. k shows the connection core for the toaster where two micro switches 38 and 39 are used - The figure uses the same reference number as for corresponding parts in fig. 2 and 3. The microswitches' influencing means 4-3 5 which, when the current is switched on, are impressed by the rail 13 in fig. 2 and 3?causes the contact between ai and a2, respectively bi and b2 to snap over to contact, between al and a35 respectively bl and b3. A closed circuit is then obtained from the left plug pin, the contact bl, the contact b3, the resistor 37, the resistor

21, strålemotstanden4-2, kontakten al, kontakten a3 og den hoyre stopselstift. Når skinnen 13 siden inntar sin andre stilling, vil også mikrobyternes påvirkningsorganer<4>-3innta sin andre stilling og strommen brytes både til bimetall-strlralenes viklinger og til strålemotstanden4-2. 21, the radiant resistor 4-2, the connector al, the connector a3 and the right plug pin. When the rail 13 then takes up its second position, the microswitches' impactors<4>-3 will also take up their second position and the current is broken both to the windings of the bimetal radiation and to the radiation resistance4-2.

Anordningen virker på folgende måte: Når apparatet er kaldt og ute av drift ligger klaffen 7 i sperrende stilling, dvs. i hovedsaken vannrett i nivå med den andre åpning i den sjakt i hvilken brodskivene innmates ovenfra gjennom åpningen 2. Klaffen 7 holdes i den sperrede stilling av bimetallstrimmelen 35, som trykker armen 33 oppover og således soker å holde klaffen i hevet stilling. Når risting skal utfores, nedtrykkes påvirkningsorganet 10 etter innstilling av onsket ristingstid ved hjelp av rattet 11. Det innses at på tross av at bimetallstrimmelen 35 under ristings-tiden oppvarmes og boyer seg nedover, vil klaffen 7 allikevel ikke falle ned på grunn av sperren 27 som hindrer dette inn-til sperren rykkes tilbake av organet 26 ved skinnens 13 tilbakegang til hvilestilling. Forst deretter kan klaffen 7 falle ned slik at de ferdigristede brodskiver glir ned til oppsamlingsstedet 6. Etter noen oyeblikk er bimetallstrimmelen 3.5 blitt avkjolt slik at den vrir sep oppover og lofter klaffen 7 til sperrestilling, hvoretter nye brodskiver kan legges inn og ristingsforlopet gjentas. The device works in the following way: When the device is cold and out of operation, the flap 7 is in the blocking position, i.e. essentially horizontal at the level of the other opening in the shaft into which the cutting discs are fed from above through the opening 2. The flap 7 is held in the blocked position of the bimetal strip 35, which presses the arm 33 upwards and thus seeks to keep the flap in a raised position. When shaking is to be carried out, the impact member 10 is pressed down after setting the desired shaking time using the steering wheel 11. It is realized that despite the fact that the bimetallic strip 35 heats up during the shaking time and bends downwards, the flap 7 will still not fall down due to the latch 27 which prevents this until the latch is moved back by the member 26 when the rail 13 returns to its rest position. Only then can the flap 7 fall down so that the pre-roasted bread discs slide down to the collection point 6. After a few moments, the bimetallic strip 3.5 has cooled so that it twists upwards and lifts the flap 7 to the locked position, after which new bread discs can be inserted and the shaking process repeated.

Claims

1. Electric bridging grater of the type where bridging discs or the like are inserted from above in a space between electrically heated radiant heating elements located on both sides of this and are located in a mainly vertical position, and after finishing grating is discharged from the room in a downward direction to a collection point that is located below the room and possibly next to it, and at the collection point preferably takes a mainly horizontal position, characterized by the room having the form of a shaft which can be closed off below with a rotatable and displaceable flap (7) or similar, which shuts off when shaking is in progress, but then releases the downward passage when moving so that the bread slice or slices fall or slide down to the collection point, the release being achieved after a certain adjustable time by the influence of an adjustable, electrically heated bimetallic element (19) > and that the current to the radiant heating elements O-t 2) and to the bimetallic element (19) is broken simultaneously with pas the sash's release, and that the flap (7) is arranged for automatic return to the closed position a few seconds after interruption of the current, by the influence of a movable thermal element, such as an electrically heated bimetallic element (35) •

2. Grill according to claim 1, characterized in that the movable thermal element is made up of an electrically heated bimetallic element (35) whose heating winding (37) is suitably connected in series with the adjustable bimetallic element's (19) heating winding (21), and which is then heated as soon as the current circuit to the radiant heating elements (^-2) is closed, whereby the bimetallic element (35) is moved so that the opening of the flap (7) is prepared, and that the bimetallic element (35)j after the shaking is finished and the current is interrupted so that the flap is opened, is cooled and thereby brings the flap (7) back to the closed position.

3. Bridge grates according to claim 1 or 2, characterized in that when the circuit breaker (38, 39) is actuated to switch on the current to the radiant heating elements (4-2), a spring-loaded rail (13) is mechanically connected to the circuit breaker's actuating element (10) ) or the like under tension of a spring ( <4> -O) by means of a projection (14 -) brought into contact with a hook (18) on the adjustable bi-metallic strip (19)5 so that as long as the current is connected is heated by an electric heating resistance. (21) which is arranged in a heat-transferring position on the strip, which means that, after a certain time which can be adjusted using a set screw (11", 2k and 25), the engagement between the protrusion (1 <4>- ) and the hook (18), whereby the rail under the influence of the spring (4-O) returns to the initial position, interrupts the current to the radiant heating elements and the bimetallic element (19) as well as the second electrically heated thermal element (35), and with the help of a on the rail (13) mounted body (26), which is preferably arranged so that against the action of a spring it can be swung in only one direction, triggers a spring-loaded latch (27) which prevents the flap (7) opens so that the shaking is 'full speed'. h. ■ Bridge grill according to one of the preceding claims, characterized in that the flap (7) is pivotably arranged about a shaft (29) at one longitudinal flap edge, • and that the flap in the vicinity of this shaft is pivotably arranged at the end of an arm (33) whose other end (3*+) 5, which may have a reduced diameter or is provided with a thickened part, is fast through an opening or the like in the movable thermal element, such as an electrically heated bimetallic element (35)? which is heated by a current winding (37) which is connected in series or parallel with. the current winding (21) of the adjustable bimetallic strip (19), so that the bimetallic strip (35), when it cools down after disconnection, when contacting the part of the arm (33) which is thickened or has a larger. diameter, guides flap (7) back from open. to the closed position, but changes position when the element is heated by electricity, so that the flap under the influence of its own weight or spring force is allowed to open and drop the pre-roasted brid.

5. Bridge grill according to one of the preceding claims, characterized in that the adjustable bimetallic element (19) is also designed to regulate the opening and closing of the flap (7).