EP0727177A2 - Ensemble d'arrosage tournant pour lave vaisselle avec mouvement horizontal alterné - Google Patents

Ensemble d'arrosage tournant pour lave vaisselle avec mouvement horizontal alterné Download PDF

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Publication number
EP0727177A2
EP0727177A2 EP96830067A EP96830067A EP0727177A2 EP 0727177 A2 EP0727177 A2 EP 0727177A2 EP 96830067 A EP96830067 A EP 96830067A EP 96830067 A EP96830067 A EP 96830067A EP 0727177 A2 EP0727177 A2 EP 0727177A2
Authority
EP
European Patent Office
Prior art keywords
sprinklers
sprinkling assembly
revolving
shaft
supporting arm
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.)
Granted
Application number
EP96830067A
Other languages
German (de)
English (en)
Other versions
EP0727177A3 (fr
EP0727177B1 (fr
Inventor
Roberto Bertazzoni
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.)
Smeg SpA
Original Assignee
Smeg SpA
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Filing date
Publication date
Application filed by Smeg SpA filed Critical Smeg SpA
Publication of EP0727177A2 publication Critical patent/EP0727177A2/fr
Publication of EP0727177A3 publication Critical patent/EP0727177A3/fr
Application granted granted Critical
Publication of EP0727177B1 publication Critical patent/EP0727177B1/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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/20—Swingable spraying devices
    • 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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • the present invention relates to revolving sprinkling assemblies for dishwashers, and in particular to an orbital sprinkling assembly provided with a synchronized reciprocating motion in the horizontal plane.
  • conventional revolving sprinklers essentially consist of a single device pivoted on a vertical axis central shaft and provided with at least one propulsion nozzle at one end, as well as with other nozzles arranged along said device to sprinkle the dishes contained in the dishwasher basket. Since the rotation axis of said device is fixed, the resulting paths of the nozzles consist in circumferences centered on the rotation axis.
  • the above-mentioned device sprinkles always and only the surfaces of the dishes which are along said circular paths, with a limited washing effectiveness.
  • the area which can be reached by the water ejected from the nozzles approximately corresponds to the area of the square circumscribed about the circular path of the outermost nozzle.
  • this effective solution does not allow to reach an area greater than the above-mentioned one, i.e. it can be usefully applied only in the case of a dishwasher whose washing space has a substantially square plan.
  • the object of the present invention is to provide an orbital sprinkling assembly which overcomes the above-mentioned limitations of prior art sprinklers.
  • the main advantage of the sprinkling assembly according to the present invention is its capacity of directly sprinkling all the dishes even when they are arranged in a rectangular washing space.
  • a further advantage of the present sprinkler is given by the synchronization of the revolving motion of the two sprinklers which also generates the reciprocating motion. In this way, in fact, the orbital sprinkling assembly is balanced and the resulting overall motion is very regular.
  • the present sprinkling assembly essentially consists of a vertical feed duct 1, at the top of which a horizontal supporting arm 2 is centrally pivoted and carries at each end a vertical shaft 3, on which a sprinkler 4 is in turn centrally pivoted as it will be explained further on.
  • This sprinkler 4 has a reduced size with respect to the supporting arm 2, i.e. half of its length is shorter than the distance between its rotation axis B and the rotation axis A of arm 2.
  • Said horizontal reciprocating motion is generated by sprinklers 4 themselves due to the effect of the distance between the axes of rotation A and B.
  • the water under pressure passes through duct 1, arm 2 and shaft 3 and reaches each sprinkler 4, which revolves due to the effect of at least one propulsion end nozzle 5.
  • the inclined jet of said nozzle 5 generates a reaction force R which can be broken up into a first component H along the Y axis of sprinkler 4 and a second component K along a direction perpendicular thereto. While this second component K is the one which generates the revolution of sprinkler 4 around axis B, the component H is discharged on shaft 3 located on the X axis of the supporting arm 2. This results, therefore, in a horizontal rotation of said arm 2 around axis A, moving alternately from right to left and backwards according to the revolution of sprinklers 4, i.e. according to the direction from which the components H arrive on shafts 3.
  • sprinkler 4 also includes washing nozzles 6 which however do not give any contribution to the motion since their jets are substantially vertical. It should be noted that the propulsion nozzles 5 also have a washing function, since their jets also have a vertical component. Furthermore, their characteristics (number, position, orientation, etc.) define the revolving speed of sprinklers 4 and therefore also the frequency and reciprocating speed of the supporting arm 2.
  • end stops 7 which define the amplitude of the travel of arm 2.
  • Said stops 7 simply consist of vertical pins secured to the floor of the washing space in such a position as to obtain a wider or narrower oscillation of arm 2 according to the ratio between the sides of the rectangular washing space.
  • the revolution of the two sprinklers 4 is synchronized so as to sum the rotation moments generated by the pushing forces of components H at the ends of arm 2. This synchronization is achieved by mutually connecting sprinklers 4 through a drive shaft 8 located inside the supporting arm 2.
  • shaft 8 is provided at each end with a conical gear 9 which engages a similar conical gear 10 located at the base of a revolving support 11 mounted on shaft 3.
  • the removable sprinkler 4 is mounted on shaft 3 through a socket 12 which is inserted within support 11 and externally snapped onto the base thereof.
  • the mutually parallel position of sprinklers 4 (see fig.1) is assured by a proper tooth 13 of socket 12, which is inserted into a reference notch formed on support 11. It is clear that the synchronization can be achieved by means of any mechanical arrangement equivalent to the one described above.
  • the two sprinklers 4 are different only in having the propulsion nozzles 5 oriented in opposite directions, so that one of sprinklers 4 revolves clockwise and the other one counterclockwise (see fig.1).

Landscapes

  • Washing And Drying Of Tableware (AREA)
EP96830067A 1995-02-15 1996-02-13 Ensemble d'arrosage tournant pour lave vaisselle avec mouvement horizontal alterné Expired - Lifetime EP0727177B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI950274 1995-02-15
ITMI950274A IT1275156B (it) 1995-02-15 1995-02-15 Gruppo irroratore girevole per lavastoviglie dotato di moto alternato orizzontale

Publications (3)

Publication Number Publication Date
EP0727177A2 true EP0727177A2 (fr) 1996-08-21
EP0727177A3 EP0727177A3 (fr) 1996-12-18
EP0727177B1 EP0727177B1 (fr) 1999-04-28

Family

ID=11370552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830067A Expired - Lifetime EP0727177B1 (fr) 1995-02-15 1996-02-13 Ensemble d'arrosage tournant pour lave vaisselle avec mouvement horizontal alterné

Country Status (4)

Country Link
EP (1) EP0727177B1 (fr)
DE (1) DE69602216T2 (fr)
ES (1) ES2132867T3 (fr)
IT (1) IT1275156B (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812329C1 (de) * 1998-03-20 1999-06-10 Whirlpool Co Geschirrspülmaschine mit dreh- und abnehmbarem Sprüharm
EP1090579A1 (fr) * 1999-10-01 2001-04-11 SMEG S.p.A. Ensemble de buses d'arrosage tournantes pour lave-vaisselle équipé d'un dispositif de déplacement horizontal
EP1201178A1 (fr) * 2000-10-27 2002-05-02 Bonferraro S.p.A. Ensemble d'arrosage tournant pour lave vaisselle avec mouvement horizontal alterné
EP1510168A2 (fr) 2003-08-29 2005-03-02 Electrolux Home Products Corporation N.V. Bras d'arrosage pour une lave-vaisselle
EP1634526A2 (fr) * 2004-09-10 2006-03-15 Electrolux Home Products Corporation N.V. Lave vaisselle avec dispositif d'arrosage
US8347898B2 (en) 2009-04-30 2013-01-08 Whirlpool Corporation Dishwasher with rotating zone wash sprayers
WO2015018671A1 (fr) * 2013-08-06 2015-02-12 Arcelik Anonim Sirketi Lave-linge à efficacité de lavage améliorée
WO2017185891A1 (fr) * 2016-04-29 2017-11-02 佛山市顺德区美的洗涤电器制造有限公司 Ensemble bras de pulvérisation pour lave-vaisselle, et lave-vaisselle équipé dudit ensemble
DE102016217912B3 (de) * 2016-09-19 2018-02-01 BSH Hausgeräte GmbH Haushalts-Geschirrspülmaschine
CN108078525A (zh) * 2017-07-31 2018-05-29 宁波方太厨具有限公司 一种洗碗机
IT201700031111A1 (it) * 2017-03-21 2018-09-21 Candy Spa Macchina lavastoviglie con braccio spruzzatore roto-traslante
CN109965816A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 一种清洗机
USD885694S1 (en) 2017-09-19 2020-05-26 Electrolux Home Products, Inc. Sprayer for dishwasher

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960990A (en) * 1956-01-26 1960-11-22 Whirlpool Co One level dishwasher
DE1965345A1 (de) * 1968-12-31 1970-07-16 Bodson Claude Spruehkopf fuer Geschirrspuelmaschinen
US3677473A (en) * 1970-01-29 1972-07-18 Frame Sa Spraying rotor for a dish washing machine or an industrial glassware washing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960990A (en) * 1956-01-26 1960-11-22 Whirlpool Co One level dishwasher
DE1965345A1 (de) * 1968-12-31 1970-07-16 Bodson Claude Spruehkopf fuer Geschirrspuelmaschinen
US3677473A (en) * 1970-01-29 1972-07-18 Frame Sa Spraying rotor for a dish washing machine or an industrial glassware washing machine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812329C1 (de) * 1998-03-20 1999-06-10 Whirlpool Co Geschirrspülmaschine mit dreh- und abnehmbarem Sprüharm
EP1090579A1 (fr) * 1999-10-01 2001-04-11 SMEG S.p.A. Ensemble de buses d'arrosage tournantes pour lave-vaisselle équipé d'un dispositif de déplacement horizontal
EP1201178A1 (fr) * 2000-10-27 2002-05-02 Bonferraro S.p.A. Ensemble d'arrosage tournant pour lave vaisselle avec mouvement horizontal alterné
EP1510168A2 (fr) 2003-08-29 2005-03-02 Electrolux Home Products Corporation N.V. Bras d'arrosage pour une lave-vaisselle
EP2294962A1 (fr) 2003-08-29 2011-03-16 Electrolux Home Products Corporation N.V. Bras d'arrosage pour une lave-vaisselle
EP1634526A2 (fr) * 2004-09-10 2006-03-15 Electrolux Home Products Corporation N.V. Lave vaisselle avec dispositif d'arrosage
EP1634526A3 (fr) * 2004-09-10 2009-10-21 Electrolux Home Products Corporation N.V. Lave vaisselle avec dispositif d'arrosage
EP2545838A1 (fr) * 2004-09-10 2013-01-16 Electrolux Home Products Corporation N.V. Lave-vaisselle doté d'un dispositif de vaporisation
US8347898B2 (en) 2009-04-30 2013-01-08 Whirlpool Corporation Dishwasher with rotating zone wash sprayers
AU2014304747B2 (en) * 2013-08-06 2016-11-03 Arcelik Anonim Sirketi A dishwasher with improved washing effectiveness
US10610079B2 (en) 2013-08-06 2020-04-07 Arcelik Anonim Sirketi Dishwasher having multiple spray arms for improved washing effectiveness
WO2015018671A1 (fr) * 2013-08-06 2015-02-12 Arcelik Anonim Sirketi Lave-linge à efficacité de lavage améliorée
WO2017185891A1 (fr) * 2016-04-29 2017-11-02 佛山市顺德区美的洗涤电器制造有限公司 Ensemble bras de pulvérisation pour lave-vaisselle, et lave-vaisselle équipé dudit ensemble
DE102016217912B3 (de) * 2016-09-19 2018-02-01 BSH Hausgeräte GmbH Haushalts-Geschirrspülmaschine
US10898052B2 (en) 2016-09-19 2021-01-26 BSH Hausgeräte GmbH Domestic dishwasher
IT201700031111A1 (it) * 2017-03-21 2018-09-21 Candy Spa Macchina lavastoviglie con braccio spruzzatore roto-traslante
EP3378370A1 (fr) * 2017-03-21 2018-09-26 Candy S.p.A. Lave-vaisselle avec bras gicleur rotatif et ajustable
CN108078525A (zh) * 2017-07-31 2018-05-29 宁波方太厨具有限公司 一种洗碗机
CN108078525B (zh) * 2017-07-31 2023-11-17 宁波方太厨具有限公司 一种洗碗机
USD885694S1 (en) 2017-09-19 2020-05-26 Electrolux Home Products, Inc. Sprayer for dishwasher
USD925144S1 (en) 2017-09-19 2021-07-13 Electrolux Home Products, Inc. Sprayer for dishwasher
CN109965816A (zh) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 一种清洗机
CN109965816B (zh) * 2017-12-28 2024-01-16 宁波方太厨具有限公司 一种清洗机

Also Published As

Publication number Publication date
ITMI950274A0 (it) 1995-02-15
EP0727177A3 (fr) 1996-12-18
EP0727177B1 (fr) 1999-04-28
ES2132867T3 (es) 1999-08-16
DE69602216T2 (de) 1999-08-19
IT1275156B (it) 1997-07-30
ITMI950274A1 (it) 1996-08-15
DE69602216D1 (de) 1999-06-02

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