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EP0456105B1 - Machine à laver - Google Patents

Machine à laver Download PDF

Info

Publication number
EP0456105B1
EP0456105B1 EP91107064A EP91107064A EP0456105B1 EP 0456105 B1 EP0456105 B1 EP 0456105B1 EP 91107064 A EP91107064 A EP 91107064A EP 91107064 A EP91107064 A EP 91107064A EP 0456105 B1 EP0456105 B1 EP 0456105B1
Authority
EP
European Patent Office
Prior art keywords
sliding door
door
upper sliding
folding door
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91107064A
Other languages
German (de)
English (en)
Other versions
EP0456105A3 (en
EP0456105A2 (fr
Inventor
Gerhard Steiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karl Winterhalter KG
Original Assignee
Karl Winterhalter KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl Winterhalter KG filed Critical Karl Winterhalter KG
Publication of EP0456105A2 publication Critical patent/EP0456105A2/fr
Publication of EP0456105A3 publication Critical patent/EP0456105A3/de
Application granted granted Critical
Publication of EP0456105B1 publication Critical patent/EP0456105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4261—Connections of the door to the casing, e.g. door hinges

Definitions

  • the invention relates to a dishwasher for cleaning upright objects, such as trays or the like, according to the preamble of claim 1.
  • a dishwasher of the generic type has become known from DE 26 51 616 C2.
  • This document describes a dishwasher with the features of the preamble of claim 1.
  • Such dishwashers are used in particular for washing large rectangular trays or similar objects, as are used, for example, in bakeries, pastry shops or for displaying goods in supermarkets, delicatessens, etc. These trays cannot be cleaned in normal automatic dishwashers due to their size.
  • the rectangular trays are placed side by side in an upright position with the longer side upwards, which can be pulled out of the dishwasher onto the door that can be folded out towards the front.
  • the depth of the interior of the dishwasher then corresponds approximately to the width of the trays.
  • the folding door is therefore designed as a lower folding door with a depth that projects into the room and corresponds approximately to the width of the trays or the side length of the square basic cross section of the dishwasher.
  • a door cannot cover the entire height of the front access opening to the washing chamber. Rather, another upper vertically displaceable sliding door is used for this purpose, which is guided in vertical guide rails.
  • the direction of force of the push bar is at an angle to the direction of movement of the sliding door. Pressure is exerted against the guide rails due to the oblique engagement position of the push rod, which leads to a certain tilting of the upper sliding door. Due to the lever path to be carried out of the lower point of application of the push rod between the lower folding door and the upper sliding door, the push rod can only be set at an angle of greater than 10 ° to the vertical during the movement process. This results in a horizontal pressure component in the upper bearing, which leads to tilting, or at least to a stiff movement of the upper sliding door in the vertically running guide rails. This applies in particular to the opening movement of the front door of the dishwasher, in which the folding door folds forward and the lever pushes the upper sliding door upwards at an angle via the push rod.
  • the dishwasher according to the invention with the characterizing features of the main claim has the advantage that tilting of the upper sliding door is almost impossible.
  • the vertically running guide rails can also be manufactured with greater play, since the most precise guidance as in the state of the Technology is not necessary.
  • the invention is based on the knowledge that a vertical pulling of the upper sliding door is much more effective than pushing the sliding door up at an angle, since a horizontal force component on the guide rail is eliminated.
  • a cable is provided, the end of which is fastened in the lower area of the sliding door and which is guided over an upper deflection roller.
  • the pull rope acting on the upper sliding door should be guided as vertically as possible.
  • the cable runs from the upper pulley to another lower pulley and from there to the end of a swivel lever attached to the lower folding door. The arc of the end of the lever corresponds to the path that the sliding door has to travel.
  • the lower folding door can be opened very easily and pulls the upper sliding door upwards via the cable and the two deflection rollers.
  • the arrangement of the upper deflecting roller and the lower deflecting roller is such that the least possible effort is required during the opening process and during the closing process.
  • the closing process takes place either by the weight of the upper door or by an additional cable between the end of the Swivel lever and the sliding door in a direct way.
  • the cable pull forms a traction cable running over two rollers, to which the upper sliding door and the end of the pivoting lever of the lower folding door are fastened.
  • the dishwasher according to the invention is basically constructed like a machine of DE 26 51 616 C2, i. H. with a rinsing chamber, as shown in Figures 1 and 2 of this patent. Reference is hereby expressly made to the associated general description of this patent specification.
  • the dishwasher 1 for cleaning upright objects, such as trays or the like, not shown in detail, has an inner washing chamber 2, the front access opening 3 of which can be closed by a lower folding door 4 and an upper sliding door 5.
  • Reference number 6 is a dash-dotted tray in Fig. 1 indicated.
  • the lower edge 7 of the upper open sliding door 5 is slightly above the upper edge 8 of the tray 6 with a height h 1.
  • the folding door 4 shown in FIG. 1 describes the movement from the lower position 4 ′ to the upper position 4 ′′ on the rotary arch 9, as shown in FIG. 2.
  • the upper sliding door 5 moves from the open position 5 'in FIG. 1 to the closed position 5''in FIG. 2.
  • the lower edge 7 of the sliding door 5' in FIG. 1 shifts downward by the height h 2, until it reaches position 7 '' in Fig. 2.
  • the vertically running guide rails 10 for the sliding door 5 are indicated in Fig. 1.
  • the sequence of movements between the lower folding door and the upper sliding door 5 is done by means of a cable 11 via an upper deflecting roller 12 and a lower deflecting roller 13.
  • the folding door 4 has a pivoting lever 14 with an effective lever length l 1, which is arranged perpendicular to the folding door 4.
  • the pivoting lever 14 likewise executes a corresponding pivoting movement about the pivot point 15.
  • the horizontal axis of rotation of the folding door 4 runs through the pivot point 15.
  • the pivoting movement of the pivot lever 14 runs along the circular arc 16, the upper end point 17 of the pivot lever 14 pivoting from the position in FIG. 1 into the lower position 17 'in FIG. 2.
  • one end 18 of the cable 11 is attached. It leads from there via the lower guide roller 13 to the upper guide roller 12 and from there to the other end 19 of the cable 11. This other end point 19 is fastened in the lower region 20 of the sliding door 5.
  • FIG. 2 The opening process can be described on the basis of FIG. 2 as follows.
  • the lower folding door 4 '' is in the closed vertical position.
  • the upper sliding door is in its lower position, so that the access opening 3 of the washing chamber 2 is closed.
  • the pivot lever 14 is in a horizontal lower position, the end of the pull rope 18 engaging at point 17 '. If you now open the hinged door 4 ′′ in the direction of force 21, the hinged door rotates outward about the pivot point 15 in the direction of the arc 9 ′, as a result of which the lever 14 and in particular its outer end point 17 ′ migrates upward along the circular arc 16.
  • the traction cable is guided over the lower deflection roller 13, the deflection roller being located at a distance h 3 below and at a distance b 3 next to the lower articulation point 17 'of the pull cable on the pivot lever 14. If the pivot lever 14 now performs an upward circular movement along the circular arc 16, the end point 17 also moves upward, as a result of which the pulling rope is pulled over the lower deflection roller 13. The movement of the pull rope is indicated by the arrows 22. From the lower pulley 13, the traction cable leads to the upper pulley 12 and from there perpendicular to the other end point 19 of the cable 11. The vertical guidance of the traction cable 11 'from the upper pulley 12 to the end point 19 means that the force on the upper sliding door 5 only acts in their direction of movement.
  • FIG. 1 An intermediate position of the folding door in an oblique arrangement is shown in Fig. 1 with 4 '' 'and corresponding pivot lever 14'.
  • the upper guide roller 12 is located at a height h4 above the lower edge 7 of the sliding door 5 'in the upper Position, the distance to the center of the pulley is measured.
  • the deflection roller 12 is arranged in such a way that the traction cable running over the end point 19 of the cable pull always leads vertically upwards. In this way, cross influences or canting on the sliding door 5 are avoided.
  • the sliding door 5 is pulled upward by the cable as it moves upward. It is held in its position by the tensioned cable pull over the deflection rollers 12, 13.
  • the circular arc 16 has an effective arc length, which corresponds to the height adjustment h2 of the sliding door 5.
  • Fig. 3 different types of cables are shown, 3a being a stainless steel wire rope, 3b a roller chain, 3c a toothed belt, 3d a V-belt and 3e a round belt. Each of these cables can be used with a corresponding design of the deflection rollers 12, 13.
  • the arrangement of the lower deflection roller 13 can also be arranged at another location in the interior of the washing chamber.
  • the decisive factor is the implementation of the movement carried out by the lever arm 14 during the folding movement of the lower folding door 4 to the sliding movement of the upper sliding door 5.
  • the washing chamber can have the cable pull system shown in FIGS. 1 and 2 with two upper and two lower deflection rollers 12, 13 on each side .

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Extensible Doors And Revolving Doors (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Detergent Compositions (AREA)

Claims (5)

  1. Machine à laver pour nettoyer des objets debout, comme des plateaux (6) ou analogue, qui présentent une hauteur h₁ plus importante que la largeur b₁, comportant une chambre de nettoyage (2) qui peut être fermée par une porte basculante inférieure (4) et une porte coulissante supérieure (5) guidée dans des rails de guidage (10) s'étendant verticalement, au moyen d'un mouvement synchrone des deux portes, d'une part la porte basculante (4) présentant une hauteur, ou une profondeur t₁ faisant saillie dans la pièce, qui correspond à peu près à la profondeur d'introduction d'un panier de chargement pouvant être retiré pour les objets (6) ou à leur largeur b₁ et, d'autre part la porte coulissante supérieure (5) pouvant être déplacée verticalement présentant une hauteur de déplacement h₂ qui correspond à peu près à la différence entre la hauteur h₁ des objets (6) et la hauteur t₁ de la porte basculante inférieure (4), un bras pivotant (14) solidaire de la porte basculante étant en outre prévu dans la zone du pivot (15) présentant un axe de rotation horizontal de la porte basculante (4), dont le mouvement pivotant déclenche une course de la porte coulissante (5) lors de l'actionnement de la porte basculante,
    caractérisée en ce qu'une première poulie de renvoi (12) pour une commande à câble (11) est agencée au-dessus du bord inférieur (7) de la porte coulissante supérieure ouverte (5), en ce qu'une extrémité (19) de la commande à câble (11) est reliée à la porte coulissante (5) et la commande à câble (11) est guidée par l'intermédiaire de la première poulie de renvoi (12) située au-dessus vers une seconde poulie de renvoi (13) située au-dessous et de là vers l'extrémité externe (17) du levier pivotant (14), l'extrémité (17) du levier pivotant (14) effectuant un arc de cercle (16) lors du mouvement de la porte basculante (4), dont la longueur de l'arc correspond en ce qui concerne la valeur à la hauteur d'ouverture h₂ de la porte coulissante supérieure (5).
  2. Machine à laver selon la revendication 1,
    caractérisée en ce que la commande à câble (11') fixée sur le bord inférieur (20) de la porte coulissante supérieure (5) est guidée verticalement par rapport à la première poulie de renvoi supérieure (12).
  3. Machine à laver selon l'une des revendications 1 ou 2,
    caractérisée en ce que la seconde poulie de renvoi (13) est agencée latéralement au-dessous de l'extrémité (17') du levier pivotant (14) agencé horizontalement, lorsque la porte basculante inférieure (4'') est fermée.
  4. Machine à laver selon l'une ou plusieurs des revendications précédentes,
    caractérisée en ce que la porte coulissante supérieure (5) est reliée directement à l'extrémité du levier pivotant (14) de la porte inférieure (4) par l'intermédiaire d'une commande à câble (23).
  5. Machine à laver selon l'une ou plusieurs des revendications précédentes,
    caractérisée en ce que la commande à câble (11) est constituée d'un câble en acier spécial (figure 3a) ou d'une chaîne à galets (figure 3b) ou d'une courroie crantée (figure 3c) ou d'une courroie trapézoïdale (figure 3d) ou d'une courroie ronde (figure 3e).
EP91107064A 1990-05-08 1991-05-02 Machine à laver Expired - Lifetime EP0456105B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4014667 1990-05-08
DE4014667A DE4014667A1 (de) 1990-05-08 1990-05-08 Spuelmaschine

Publications (3)

Publication Number Publication Date
EP0456105A2 EP0456105A2 (fr) 1991-11-13
EP0456105A3 EP0456105A3 (en) 1992-05-06
EP0456105B1 true EP0456105B1 (fr) 1994-08-31

Family

ID=6405914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91107064A Expired - Lifetime EP0456105B1 (fr) 1990-05-08 1991-05-02 Machine à laver

Country Status (4)

Country Link
EP (1) EP0456105B1 (fr)
JP (1) JPH05103743A (fr)
AT (1) ATE110548T1 (fr)
DE (2) DE4014667A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238372A1 (de) * 1992-11-13 1994-05-19 Winterhalter Kg Karl Spülmaschine
US20070131258A1 (en) * 2005-12-13 2007-06-14 Electrolux Home Products, Inc. Dishwasher including a first door and a second door
DE102019128733A1 (de) * 2019-10-24 2021-04-29 Miele & Cie. Kg Reinigungs- und Desinfektionsautomat für medizinische Instrumente
DE102020204146A1 (de) * 2020-03-31 2021-09-30 Meiko Maschinenbau Gmbh & Co. Kg Reinigungsvorrichtung zur Reinigung von Reinigungsgut

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737902A (en) * 1925-10-16 1929-12-03 Colt S Mfg Co Door-operating mechanism
US1975627A (en) * 1930-10-31 1934-10-02 Blakeslee & Co G S Sliding door spring
US2104938A (en) * 1932-03-18 1938-01-11 Colt S Mfg Co Framework and casing for dishwashing machines
US2633399A (en) * 1947-06-24 1953-03-31 Toledo Scale Co Dishwashing machine
FR2250503B2 (fr) * 1973-03-15 1976-10-08 Calor Sa
US4018239A (en) * 1975-11-17 1977-04-19 Hobart Corporation Tray washer apparatus

Also Published As

Publication number Publication date
EP0456105A3 (en) 1992-05-06
ATE110548T1 (de) 1994-09-15
JPH05103743A (ja) 1993-04-27
EP0456105A2 (fr) 1991-11-13
DE59102688D1 (de) 1994-10-06
DE4014667A1 (de) 1991-11-14

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