EP0788763A2 - Geschirrspülmaschine mit in der Höhe einstellbaren Geschirrkörben - Google Patents

Geschirrspülmaschine mit in der Höhe einstellbaren Geschirrkörben Download PDF

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Publication number
EP0788763A2
EP0788763A2 EP97101706A EP97101706A EP0788763A2 EP 0788763 A2 EP0788763 A2 EP 0788763A2 EP 97101706 A EP97101706 A EP 97101706A EP 97101706 A EP97101706 A EP 97101706A EP 0788763 A2 EP0788763 A2 EP 0788763A2
Authority
EP
European Patent Office
Prior art keywords
basket
dishwashing machine
machine according
section
slits
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.)
Withdrawn
Application number
EP97101706A
Other languages
English (en)
French (fr)
Other versions
EP0788763A3 (de
Inventor
Carlo Frairia
Marcello Premoli
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.)
T&P SpA
Original Assignee
Tecnoplastica Prealpina SpA
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 Tecnoplastica Prealpina SpA filed Critical Tecnoplastica Prealpina SpA
Publication of EP0788763A2 publication Critical patent/EP0788763A2/de
Publication of EP0788763A3 publication Critical patent/EP0788763A3/de
Withdrawn legal-status Critical Current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
    • A47L15/50—Racks ; Baskets
    • A47L15/504—Arrangements for changing the height of racks

Definitions

  • This invention concerns a dishwashing machine of the type comprising at least a basket that can move freely in both horizontal and vertical directions.
  • dishwashing machines are usually equipped with two baskets, i.e. an upper and a lower basket, both removable, where the height of the upper basket can be adjusted, as the latter can take a higher and a lower position according to the requirements of the crockery load.
  • the horizontal motion is obtained according to the known art by fastening some horizontal rails to the washing tub, on which rollers are sliding whose axis are clamped to the basket side walls.
  • the vertical motion is normally obtained by interposing a further element conceived in different ways between the roller axis and the basket to allow height adjustment.
  • DE 42 27 585 A1 describes a dishwashing machine with a height adjustable basket, having plates fastened to the basket side walls. Said plates have nearly vertical slits acting as sliding guides; the axis of the rollers running over the rails fastened to the side walls of the washing tub slide within said guides, which are substantially V-shaped in their lower side for locking purposes.
  • the shape of the sliding guides allows two safe balanced positions, a high one on the upper end of the V notch and a low one on the other guide end.
  • the vertical slits allow a free non-braked basket fall when the latter is released from its balanced position.
  • the V-shape of the lower section of the sliding guide requires the basket to be further lifted by a few centimeters and removed to the same extent when releasing the basket from its high position locking.
  • This operation may lead to a possible impact of any large dishes with the washing tub ceiling and the edge between the tub ceiling and its walls, causing a possible cracking of the crockery or an interference with likely dishwasher elements housed on the tub ceiling, eg. the sprayers.
  • Another object of this invention is to provide a dishwashing machine equipped with a height adjustable basket whose adjusting system has efficient safe locking means for the basket.
  • a further object of this invention is to provide a dishwashing machine equipped with a height adjustable basket whose adjusting system allows simple ergonomic operations.
  • Fig. 1 shows a plate 1 fastened to a basket 2 by jaw couplers 3 and single couplers 4.
  • a plate 1 is fastened by means of said couplers to each side wall of the basket 2.
  • the plate 1 is configured in its upper section like a handle 5, whereas its lower section has two slits 6 and 7, in the form of circumference arches with a notch 8 in their intermediate section.
  • An axis 9 of a roller 10 as shown in the section of Fig. 3 is free to slide within said slits 6 and 7.
  • the axis is bound through an articulation lever 11 to a pin 12, which is screwed by a screw 21 on the plate 1 as it can be seen in the section of Fig. 3.
  • Fig. 3 also shows how the roller 10 is free to move inside a rail 13 sliding externally over two wheels 14 fastened to the side wall of the dishwasher washing tub.
  • the plate 1 also has guides 15 incorporating a locking element 16, which has substantially the shape of a foil.
  • a locking element 16 is configured asymmetrically, with a longer end 17 and a shorter one 18.
  • the locking element 16 is further provided with a button 19 to hinder an undesired sliding of the locking element 16 in the guides 15.
  • Fig. 1 the basket 2 is shown in its high position.
  • each axis 9 is free to rotate around the relevant pin 12 through the articulation lever 11.
  • the axis 9 overcome the dead center of the slits 6 and 7 and by traveling over the circumferences they reach the other end of said slits 6 and 7, where they reach again a safe balanced position.
  • the locking element 16 can slide again inside the guides 15, and its end 18 will lock the motion of the axis 9 (as shown in Fig. 2).
  • a further advantage is given by inserting the articulation levers 11 to connect the axis 9 to the pins 12 screwed on the plate 1. Therefore, said articulation lever 11 allows distribution of the basket weight 2 on the axis 9 and on the pins 12, so that the axis themselves will be less mechanically stressed and consequently less subject to failure. Moreover, the articulation lever 11 causes a further constraint for the axis 9 when running a circumferential path, thus causing a safe coupling between the slits 6 and 7 and the axis 9, and allowing the basket motion 2 without jamming.
  • the use of the articulation lever 11 simplifies the device assembly as it is possible to make the notch 8 in the slits 6 and 7 through which the axis 9 will be inserted, said notch 8 having a suitable size to allow the passage of the larger section of axis 9.
  • the slits 6 and 7 cannot restrain a likely side motion of the axis 9, which is anyway restricted by the constraint caused by the articulation lever 11.
  • no risks of disconnection between the roller 10 and the plate 1 will ensue and at the same time assembly will be easier.
  • Assembly is made by inserting the axis 9 through the notch 8 in the slits 6 or 7, i.e. through a release insertion of the roller 10 on the axis 9. Finally, a pin 20 is inserted inside the axis 9, as shown in Fig. 3, whose dual purpose is to lock the release insertion and strengthen the axis 9, Fig. 4 shows an optional embodiment for pin 12 insertion in the articulation lever 11; in this instance, instead of a screw tightening 21, a release connection 22 is used, which is simpler from an assembly viewpoint.
  • Fig. 2 shows the same plate 1 of Fig. 1, however with the basket 2 in its bottom position. It can be seen how the axis 9 brought to the upper end of the slit 7 is locked by the end 18 of the locking element 16.
  • Fig. 6 shows another embodiment of this invention with reference to the configuration of the slits 6 and 7.
  • notch 8 of Fig. 1 and the axis 9 show a round section with milled edges for their free insertion in the slits 6 and 7 during assembly. After insertion, said axis 9 are rotated by 90° to remain bound in the slits 6 and 7.
  • Such a variation allows the axis 9 to be engaged in the slits 6 and 7 for the whole circumference arch and reduces further the risk of the axis 9 coming off the slits 6 and 7.
  • Fig. 7 shows the section of the change shown in Fig. 6, where the tightening of the pin 12 and of the articulation 11 on a nut 23 with the screw 21 is highlighted. This assembly procedure ensures higher strength characteristics.
  • Fig. 8 shows a second possible embodiment of this invention.
  • the width of the semicircular slits 6 and 7 is further reduced, since the articulation levers 11 are fastened to the roller axis 10 by the screws 30, which act as a pin.
  • Another semicircular slit 31 is provided on the plate 1 wherein a pin 32 is sliding.
  • a tie rod 33 is fastened to the pins 30 of the slits 6 and 7 and to the pin 32 of the slit 31, thus coupling their movements.
  • a locking element 34 also inserted on pin 32 in a perpendicular direction is sliding vertically in the guides 35.
  • Said locking element 34 is provided with grooves 36 to lock the pin 32 motion in its high and bottom positions on the ends of the slit 31.
  • the locking element 34 has a spring 37 housed in a rectangular seat 38 defined between the plate 1 and the locking element 34. As it can be seen, specifically in Fig. 13, the end of the locking element 34 is folded at right angle to configure gripping means 39.
  • Retainers 40 are also provided to avoid side movements of the articulation levers 11 when the basket 2 is in one of said two positions.
  • the slits 6, 7 and 31 have exactly a semicircular configuration, with their ends in line with the dead centers, i.e. on the balance points.
  • Fig. 1 Previously, the embodiment of Fig. 1 was shown with the slits 6 and 7 extending to the lower section over the dead center.
  • the solution comprising the slits having exactly a semicircular configuration has the advantage of saving the space in line with the slit section over the dead center during the basket motion, thus allowing a longer basket to the prejudice of a higher stability deriving from the position over the dead point.
  • both advantages can be available, i.e. a long basket and a long slit with intrinsically safe positions by providing the couplings 3 and 4 between the basket 2 and the plate 1 with a lengthwise clearance, sized to allow the horizontal displacement of the basket and recover the room not available due to the longer slits 6, 7 and 31.
  • Figs. 12 and 13 show the section according to the axis A-A and B-B of fig. 8.
  • Fig. 12 shows the detail of the screw 30 acting as a pin inside the axis 9 of the roller 10.
  • Fig. 13 shows the coupling system of the spring 37 and the configuration of the tie rod 33 suitable to run above the pin 12.
  • Fig. 10 shows the plate 1 of an embodiment where the slits 6 and 7 of Fig. 1 or the slits 6, 7 and 31 of Fig. 8 are not available.
  • the articulation levers 11 are located on the plate side 1 facing the rails 13, and the axis 9 of the rollers 10 are integral with the articulation levers 11 or even obtained on the same part.
  • Retainers 41 are located along the track of the articulation lever 11 to restrain the perpendicular motion to the plate 1, since the slits 6, 7 and 31 exerting this function in the embodiments described above are not available.
  • This embodiment shows the assembly of the spring 37 to let it execute an extending motion instead of a compressive motion of Fig. 8 when it recalls the locking element 34 to the locking position.
  • Figs. 14 and 15 show the sections according to the axis A-A and B-B of Fig. 10.
  • Fig. 14 shows how the articulation lever 11 is bound to the plate 1 by the screw 30 - nut 23 system, which in this case has been adequately chosen for its sturdiness, whereas the function of the retainers 41 to form a second binding point for the articulation lever 11 is apparent.
  • Fig. 15 highlights the coupling between the pin 32 of the tie rod 33 and the groove 36 of the locking element 34.
  • Fig. 16 shows the detail of the spring 37, which in this case is working under traction and is bound between the locking element 34 and the plate 1.
  • Fig. 17 shows a further possible embodiment of this invention, where the basket 2 does not consist entirely of metal wire elements as typically known in the art, but it has a bottom 42 made from metal wire and a frame 42 in plastic material, which consists of a front wall 44, a rear wall 45 and two side walls 46, where said side walls 46 have in their lower section facing the frame inside 43 coupling means for its coupling with the bottom.
  • each side wall 46 has a plate 1 of the height adjusting device according to this invention, which can be obtained in the element 46 itself through the same moulding operation.
  • the frame 43 can be moulded in plastic material as separate pieces corresponding to the walls 44-46, that are assembled together.
  • each wall 44-46 are configured to obtain some notches for the angular coupling of the walls.
  • a pin 47 is favourably provided to warrant a safe coupling between two walls, which pin is suitable for insertion into the throughholes 48 obtained on some tailpieces 49, which form a complementary wall profile.
  • the function of the locking element 34 in Fig. 8 may be easily inverted by upturning its position and maintaining the gripping means 39 on the uppermost end towards the handle 5, so that the plate may be released by pressing instead of pulling the means 39.
  • a further change with reference eg. to the second or third embodiments of this invention may provide the use of locking elements allowing to lock the roller axis in different positions along the slits for intermediate height adjustments.

Landscapes

  • Washing And Drying Of Tableware (AREA)
EP97101706A 1996-02-05 1997-02-04 Geschirrspülmaschine mit in der Höhe einstellbaren Geschirrkörben Withdrawn EP0788763A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO960075 1996-02-05
IT96TO000075A IT1284370B1 (it) 1996-02-05 1996-02-05 Macchina lavastoviglie con cestelli regolabili in altezza.

Publications (2)

Publication Number Publication Date
EP0788763A2 true EP0788763A2 (de) 1997-08-13
EP0788763A3 EP0788763A3 (de) 1997-10-15

Family

ID=11414210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101706A Withdrawn EP0788763A3 (de) 1996-02-05 1997-02-04 Geschirrspülmaschine mit in der Höhe einstellbaren Geschirrkörben

Country Status (2)

Country Link
EP (1) EP0788763A3 (de)
IT (1) IT1284370B1 (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954471A1 (de) * 1999-11-12 2001-05-31 Aeg Hausgeraete Gmbh Geschirrspülmaschine mit einem Spülbehälter
EP1166708A2 (de) * 2000-06-15 2002-01-02 CANDY S.p.A. Geschirrspülmaschine mit einem in der Höhe einstellbaren Korb
EP1208791A1 (de) * 2000-11-20 2002-05-29 Steffen Hachtel Vorrichtung zur Höhenverstellung der oberen Geschirrkörbe von Spülmaschinen
EP2076162A1 (de) * 2006-09-21 2009-07-08 LG Electronics Inc. Geschirrspülmaschine mit verstellbarem korb/verstellbaren körben
WO2009153137A1 (de) * 2008-05-27 2009-12-23 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit wenigstens einem höhenverstellbarem geschirrkorb
US7775378B2 (en) 2007-05-04 2010-08-17 Electrolux Home Products, Inc. Height adjustment mechanism for a dishwasher rack and associated method
EP2392878A3 (de) * 2010-06-04 2013-09-25 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Höhenverstellbarer Träger
EP2737839A1 (de) * 2012-11-30 2014-06-04 Guggenberger Reinigungstechnik e. K. Vorrichtung zur Reinigung von Waschgut
US8813766B2 (en) 2011-05-18 2014-08-26 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
US9004082B2 (en) 2011-05-18 2015-04-14 Whirlpool Corporation Dish rack height adjusting employing cam and follower mechanism
US20170231464A1 (en) * 2014-10-13 2017-08-17 K-One Industries Pte. Ltd. Mobile dishwasher
IT201700040098A1 (it) * 2017-04-11 2018-10-11 Illinois Tool Works Dispositivo di regolazione dell'altezza per ripiani di elettrodomestici, in particolare per cesti di lavastoviglie
EP3693093A1 (de) * 2019-02-11 2020-08-12 Steelco S.p.A. Traggestell für gegenstände, die einer behandlung in einer behandlungsmaschine unterzogen werden sollen, und entsprechende behandlungsmaschine
US10820783B2 (en) 2017-03-31 2020-11-03 Electrolux Appliances Aktiebolag Bracket, rack, and dishwasher
US11160434B2 (en) 2011-05-18 2021-11-02 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
EP1282376B2 (de) † 2000-05-15 2021-12-29 Arçelik Anonim Sirketi Geschirrkorb mit höhenverstellbaren haltern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1808996A1 (de) * 1967-12-11 1969-07-17 Hobart Mfg Co Gitterkorb fuer eine Geschirr-Spuelmaschine
US3560069A (en) * 1969-07-01 1971-02-02 Gen Electric Adjustable rack assembly in an automatic dishwasher
US3768883A (en) * 1971-12-27 1973-10-30 Gen Electric Rack level adjustment system in a dishwasher
DE2701746A1 (de) * 1977-01-18 1978-07-20 Bosch Siemens Hausgeraete Geschirrspuelmaschine mit einem geschirrkorb
DE3103059A1 (de) * 1981-01-30 1982-08-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zur hoehenverstellbaren anordnung eines ausziehbaren geschirrkorbes in einer geschirrspuelmaschine
DE4227585A1 (de) * 1992-08-20 1994-02-24 Licentia Gmbh Geschirrspülmaschine mit höhenverstellbarem Geschirrkorb

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1808996A1 (de) * 1967-12-11 1969-07-17 Hobart Mfg Co Gitterkorb fuer eine Geschirr-Spuelmaschine
US3560069A (en) * 1969-07-01 1971-02-02 Gen Electric Adjustable rack assembly in an automatic dishwasher
US3768883A (en) * 1971-12-27 1973-10-30 Gen Electric Rack level adjustment system in a dishwasher
DE2701746A1 (de) * 1977-01-18 1978-07-20 Bosch Siemens Hausgeraete Geschirrspuelmaschine mit einem geschirrkorb
DE3103059A1 (de) * 1981-01-30 1982-08-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zur hoehenverstellbaren anordnung eines ausziehbaren geschirrkorbes in einer geschirrspuelmaschine
DE4227585A1 (de) * 1992-08-20 1994-02-24 Licentia Gmbh Geschirrspülmaschine mit höhenverstellbarem Geschirrkorb

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954471A1 (de) * 1999-11-12 2001-05-31 Aeg Hausgeraete Gmbh Geschirrspülmaschine mit einem Spülbehälter
EP1282376B2 (de) † 2000-05-15 2021-12-29 Arçelik Anonim Sirketi Geschirrkorb mit höhenverstellbaren haltern
EP1166708A2 (de) * 2000-06-15 2002-01-02 CANDY S.p.A. Geschirrspülmaschine mit einem in der Höhe einstellbaren Korb
EP1166708A3 (de) * 2000-06-15 2003-01-22 CANDY S.p.A. Geschirrspülmaschine mit einem in der Höhe einstellbaren Korb
EP1208791A1 (de) * 2000-11-20 2002-05-29 Steffen Hachtel Vorrichtung zur Höhenverstellung der oberen Geschirrkörbe von Spülmaschinen
EP2076162A4 (de) * 2006-09-21 2014-12-03 Lg Electronics Inc Geschirrspülmaschine mit verstellbarem korb/verstellbaren körben
EP2076162A1 (de) * 2006-09-21 2009-07-08 LG Electronics Inc. Geschirrspülmaschine mit verstellbarem korb/verstellbaren körben
US7775378B2 (en) 2007-05-04 2010-08-17 Electrolux Home Products, Inc. Height adjustment mechanism for a dishwasher rack and associated method
WO2009153137A1 (de) * 2008-05-27 2009-12-23 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit wenigstens einem höhenverstellbarem geschirrkorb
EP2392878A3 (de) * 2010-06-04 2013-09-25 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Höhenverstellbarer Träger
US9004082B2 (en) 2011-05-18 2015-04-14 Whirlpool Corporation Dish rack height adjusting employing cam and follower mechanism
US9681792B2 (en) 2011-05-18 2017-06-20 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
US11805965B2 (en) 2011-05-18 2023-11-07 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
US8813766B2 (en) 2011-05-18 2014-08-26 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
US10433704B2 (en) 2011-05-18 2019-10-08 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
US11160434B2 (en) 2011-05-18 2021-11-02 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
EP2737839A1 (de) * 2012-11-30 2014-06-04 Guggenberger Reinigungstechnik e. K. Vorrichtung zur Reinigung von Waschgut
US20170231464A1 (en) * 2014-10-13 2017-08-17 K-One Industries Pte. Ltd. Mobile dishwasher
US10820783B2 (en) 2017-03-31 2020-11-03 Electrolux Appliances Aktiebolag Bracket, rack, and dishwasher
EP3387981A1 (de) * 2017-04-11 2018-10-17 Illinois Tool Works, Inc. Höhenverstellvorrichtung für regale von haushaltsgeräten, insbesondere geschirrspülmaschinengestelle
US10383506B2 (en) 2017-04-11 2019-08-20 Illinois Tool Works Inc. Height-adjusting device for shelves of appliances, in particular for dishwasher racks
IT201700040098A1 (it) * 2017-04-11 2018-10-11 Illinois Tool Works Dispositivo di regolazione dell'altezza per ripiani di elettrodomestici, in particolare per cesti di lavastoviglie
EP3693093A1 (de) * 2019-02-11 2020-08-12 Steelco S.p.A. Traggestell für gegenstände, die einer behandlung in einer behandlungsmaschine unterzogen werden sollen, und entsprechende behandlungsmaschine

Also Published As

Publication number Publication date
IT1284370B1 (it) 1998-05-18
ITTO960075A0 (it) 1996-02-05
ITTO960075A1 (it) 1997-08-05
EP0788763A3 (de) 1997-10-15

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