DK149641B

DK149641B - CONNECTOR FOR A SPRAYING SYSTEM IN A DISHWASHER

Info

Publication number: DK149641B
Application number: DK327683A
Authority: DK
Inventors: Bo-Anders Ragnar Berglund
Original assignee: Electrolux Ab
Priority date: 1981-11-24
Filing date: 1983-07-15
Publication date: 1986-08-25
Also published as: DK149641C; EP0094409A1; FI77367B; DK327683D0; SE442703B; DE3267942D1; DK327683A; WO1983001892A1; SE8106996L; FI832667A0; EP0094409B1; FI77367C; FI832667A

Description

149641 i o149641 i o

Den foreliggende opfindelse angår en forbindelsesindretning til et sprøjtesystem i en opvaskemaskine og af den i krav l's indledning angivne art.The present invention relates to a connection device for a spraying system in a dishwasher and of the kind specified in the preamble of claim 1.

5 En sådan forbindelsesindretning er beskrevet DE-A-2.355.271.Such a connector is disclosed in DE-A-2,355,271.

I denne indretning har ledningen til sprøjtearmen tragtformede forbindelsesparter, der samvirker med tilsvarende formede forbindelsesfremspring anbragt på føderøret. De pågældende forbindelsesparter og fremspring er indbyrdes løst forbundet 10 og for at muliggøre stativets placering ved to forskellige niveauer, er der tilvejebragt tre fremspring i en lodret række, hvoraf den midterste er åben, og de to andre er permanent lukkede. Ledningen har to tragtformede parter og ved hvert niveau samvirker en tragtformet part med det åbne fremspring, 15 medens de andre samvirker med et af de lukkede fremspring.In this device, the conduit for the spray arm has funnel-shaped connecting portions which cooperate with correspondingly shaped connecting projections disposed on the feeder tube. The respective connecting parts and projections are loosely interconnected 10 and to enable the stand to be positioned at two different levels, three projections are provided in a vertical row, the middle of which is open and the other two permanently closed. The conduit has two funnel-shaped parts and at each level one funnel-shaped member cooperates with the open projection, while the others interact with one of the closed projections.

Det er den foreliggende opfindelses formål at forenkle denne forbindelsesindretning ved at eliminere fremspringene og de tragtformede parter og tilvejebringe en tæt forbindelse mellem 20 ledningen og føderøret, hvorved man eliminerer ethvert væsketrykstab, der kunne forekomme ved den ovenfor omtalte kendte indretning.It is an object of the present invention to simplify this connection device by eliminating the projections and the funnel-shaped portions and to provide a close connection between the conduit and the feeder tube, thereby eliminating any fluid pressure loss that might occur with the prior art device mentioned above.

Dette formål tilgodeses ved, at den indledningsvist omtalte 25 forbindelsesindretning ifølge opfindelsen er ejendommelig ved det i den kendetegnende del af krav 1 anførte. En foretruk-ken udførelsesform er angivet i krav 2.This object is met in that the connection device according to the invention mentioned above is characterized by the features of the characterizing part of claim 1. A preferred embodiment is given in claim 2.

En udførelsesform for indretningen ifølge opfindelsen beskri-30 ves nedenfor i form af et eksempel under henvisning til tegningen.An embodiment of the device according to the invention is described below in the form of an example with reference to the drawing.

fig. 1 viser et opvaskemaskinekabinet i lodret tværsnit, og fig. 2 viser det samme kabinet med et stativ i en anden stil-35 ling.FIG. 1 is a vertical cross-section of the dishwasher cabinet; and FIG. 2 shows the same cabinet with a stand in a different position.

OISLAND

2 149641 I opvaskemaskinen ifølge fig. 1 er der et cirkulationskreds’løb for et fluidum, der pumpes ind i et føderør 10, der er afgrenet til to sprøjtearme 11, 12 placeret i vaskekabinettet, 5 der har et øvre og et nedre opvaskestativ 14, 15, som kan træk-kes ud gennem en åbning i maskinens forside, der har en dør 16. Undersiden af det øvre stativ 14 er udstyret med et leje 17 for en sprøjtearm 11, hvilket leje har en passage for en ledning 18, der forløber bagud langs stativets underside. Led-10 ningen er således i forbindelse med sprøjtearmen gennem lejet, således at armen kan rotere frit, medens ledningen står stille. Føderøret har en forbindelsesflade 19, der vender mod ka-binetcentrumet, og i hvis overflade der er en port 20, hvorigennem fluidum kan strømme. Ledningen 18's bagende danner et til-15 slutningshus 21, der strækker sig i lodret retning, og som bagud er afsluttet af et bælgpar 22, 23, der er i forbindelse med ledningen via huller 24, 25 i væggen. Når det øvre stativ skubbes imod kabinettets bagvæg, omgiver en af bælgene (i fig.In the dishwasher of FIG. 1, there is a circulation circuit for a fluid pumped into a feeder tube 10 which is branched into two spray arms 11, 12 located in the wash cabinet 5, which has an upper and a lower washable rack 14, 15 which can be pulled through an opening in the front of the machine having a door 16. The underside of the upper rack 14 is provided with a bearing 17 for a spray arm 11, the bearing having a passage for a line 18 extending rearwardly along the underside of the rack. Thus, the conduit is in communication with the spray arm through the bearing so that the arm can rotate freely while the conduit is stationary. The feed tube has a connecting surface 19 facing the center of the cabin, and in whose surface there is a port 20 through which fluid can flow. The rear end of the conduit 18 forms a connecting housing 21 extending in the vertical direction, which is rearwardly terminated by a pair of bellows 22, 23 which is connected to the conduit via holes 24, 25 in the wall. When the upper frame is pushed against the back wall of the cabinet, one of the bellows (in fig.

1 bælgene 22) porten 20 og tætner imod forbindelsesfladen 19.1, the bellows 22) the port 20 and seals against the connecting surface 19.

2020

Den anden bælg 23 ligger an imod overfladen ved siden af porten. Når fluidum bringes til at cirkulere i maskinen, opstår der et tryk, der presser bælgen 22's ydre ender hårdere mod forbindelsesfladen og det øvre stativ i retning af døren 16.The second bellows 23 abuts the surface adjacent to the gate. When fluid is circulated in the machine, a pressure is created that presses the outer ends of the bellows 22 harder against the connecting surface and the upper frame in the direction of the door 16.

Fluidets tryk vil så af sig selv tilvejebringe en god tætning 25 mellem bælgen 22 og forbindelsesfladen 19. Enten den ene eller den anden af bælgene 22, 23 kan benyttes til at etablere forbindelsen, i fig. 2 benyttes bælgen 23, og stativet 14 er så i en øvre arbejdsstilling i opvaskekabinettet. Ved brug af de øvre bælge (fig. 1) er stativet i sin nedre arbejdsstil-30 ling. Disse stillinger er valgfrie, og valget gøres afhængigt af størrelsen på de dele, der skal vaskes op. På hver side af stativet er der styr 26, 27 i væggen, et øvre og et nedre.The pressure of the fluid will then by itself provide a good seal 25 between the bellows 22 and the connecting surface 19. Either one or the other of the bellows 22, 23 can be used to establish the connection, in FIG. 2, the bellows 23 is used and the rack 14 is then in an upper working position in the dishwasher cabinet. Using the upper bellows (Fig. 1), the stand is in its lower working position. These positions are optional and the choice is made depending on the size of the parts to be washed. On each side of the rack there are guides 26, 27 in the wall, one upper and one lower.

Når stativet skubbes ind på et af disse styrpar, møder den tilsvarende bælg porten 20, således at forbindelsen til føde-35 røret er etableret. Under opvaskningen strømmer fluidum gen-When the stand is pushed into one of these guide pairs, the corresponding bellows meets the port 20 so that the connection to the feed tube is established. During washing, fluid flows through

Claims

The feeding tube 10 and the wire 18 to the spray arm 11. The bellows connected to the gate are securely held in place by a force directed against the feeding tube and formed by closing the door 16 by means of a shoulder 28 on the outer end of the stand, 5 which shoulder is pushed by the door in the direction of the rack which transmits the force to the cord 18 and the bellows. When the door is opened and the stand is pulled out, the connection between the feed tube and the bellows is severed. The advantage of a connector of this kind is, in principle, that it is insensitive to deviations in dimensions of the cabinet, door, racks, feeder tube, etc. The flexible bellows, which may also be formed as a sleeve, collar or the like, will even adjust their outer sealing end to the connector surface, thus eliminating the risk of leakage. Claims. Spraying system connector in a dishwasher equipped with a feeder tube (10) and a wire (18) for a spray arm (11) connected by a bearing (17) to a dish rack (14) in the machine where the feeder tube (10) is provided with a connecting surface (19) facing the wire (18) and is provided with a port (20) and the wire (18) barrel is connected to the gate (20) via at least one pair in the vertical direction. spaced openings (24,25) at the end of the conduit (18) such that the dish rack (14) can assume varying vertical positions relative to the feeder tube (10), characterized in that a pair (22,23) of flexible bellows, elastic sleeves or collars extend from the apertures (24,25) of the conduit (18) in their longitudinal direction and the open outer end of the pair (22,23) of one bellows, sleeve or collar by pushing the conduit (18) toward the tube (10) encloses the gate (20), 30 and that the open outer end of the second bellows, sleeve or collar of the pair (22,23) lies abut the surface (19) at the side of the gate (20) and is thereby closed.