EP0679365B1 - Rampe de lavage, notamment pour machines à laver la vaisselle - Google Patents

Rampe de lavage, notamment pour machines à laver la vaisselle Download PDF

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Publication number
EP0679365B1
EP0679365B1 EP95400925A EP95400925A EP0679365B1 EP 0679365 B1 EP0679365 B1 EP 0679365B1 EP 95400925 A EP95400925 A EP 95400925A EP 95400925 A EP95400925 A EP 95400925A EP 0679365 B1 EP0679365 B1 EP 0679365B1
Authority
EP
European Patent Office
Prior art keywords
slot
tube
nozzle
liquid
jets
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
EP95400925A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0679365A1 (fr
Inventor
Roger Curie
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.)
Ste de Constructions Elbeuvienne de Materiels our LAlimentation SAS
Original Assignee
Ste de Constructions Elbeuvienne de Materiels our LAlimentation SAS
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 Ste de Constructions Elbeuvienne de Materiels our LAlimentation SAS filed Critical Ste de Constructions Elbeuvienne de Materiels our LAlimentation SAS
Publication of EP0679365A1 publication Critical patent/EP0679365A1/fr
Application granted granted Critical
Publication of EP0679365B1 publication Critical patent/EP0679365B1/fr
Anticipated expiration legal-status Critical
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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
    • A47L15/4278—Nozzles
    • 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
    • A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices

Definitions

  • the present invention relates to a washing ramp, especially for dishwashing machines, comprising a tube supplied with washing liquid and filled, along its length, with several sprinklers, each pierced with a hole to produce a flat fan-shaped spray or beam.
  • Such a ramp may be intended in particular, but not exclusively, to a tunnel type dishwashing machine, with automatic advancement of racks containing the dishes to be washed, successively crossing several treatment zones which can include one or more washes and one or more rinses.
  • This water spray must be as uniform as possible and completely sweep the surfaces to be washed without leaving shadows.
  • washing ramps of this type are generally constituted by a tube lined with several sprinklers, the holes include, in the direction of flow of the liquid, a first cylindrical section followed by a slit oriented perpendicular to the axis of the tube.
  • a washing ramp is described in DE-B-1302680.
  • the present invention relates to a washing ramp which, in particular by the shape of the sprinklers and their arrangement on the boom, provides higher washing efficiency than ramps known.
  • the washing ramp object of the invention, in particular for dishwashing machines, includes a tube supplied with liquid washing and garnished along its length with several nozzles, each pierced of a hole to produce a flat jet or beam.
  • the hole of each nozzle includes a first inlet section of liquid in the form of a first slot arranged in a plane substantially perpendicular to the axis of the tube.
  • Each sprinkler hole further includes a second liquid outlet section under the form of a second slot arranged in a plane substantially parallel to the axis of the tube, and connecting to the first slot it extended.
  • the conformation of the hole of each nozzle in the form of a double slit provides a fan or beam jet which is in the plane of the ramp and that is not only flat but also symmetrical, i.e. independent of the direction of flow of the liquid in the boom, and uniform from one nozzle to the other of the boom.
  • the two sections of the hole of each nozzle have the shape of triangular slots, the first slot being defined by two parallel lateral flanks and by two flanks which converge in the direction of flow of the liquid, and the second slot being defined by two parallel lateral flanks and by two end flanks which diverge in the direction of water flow.
  • the depth of the first slot in the direction of passage of the liquid is advantageously less than or equal to the depth of the second slot in the direction of passage of the liquid.
  • each sprinkler has advantageously a domed shape, in particular hemispherical, in its part projecting inside the tube of the ramp.
  • each nozzle can advantageously have a flat shape in its part located outside the boom tube.
  • each of these ramps being fitted with several nozzles with two crossed slits producing each a flat fan fan in a plane passing through the axis of the tube the ramp, it is advantageous that the two opposite ramps are slightly offset perpendicular to the plane of their jets so that the jets produced by the jets of the opposite ramps do not meet not.
  • two opposite ramps 1a, 1b supplied in washing liquid by the circulation pump not shown with a dishwasher are arranged in a horizontal position, one above and one below the path only non-lockers depicted laden with dishes to wash perpendicular to the length of the ramps 1a, 1b, that is to say perpendicular to the drawing plane of Figure 1.
  • Each ramp 1a, 1b consists of a tube 2a, 2b supplied to the right end in Figure 1, closed at its opposite end and lined, along its length, with several nozzles 3 distributed at intervals regular on the tubes, facing down on the ramp upper 1a and upwards on the lower ramp 1b.
  • Each nozzle 3 is shaped so as to produce a jet of liquid 4 flat fan in the plane of the ramp 1a, 1b, the jets 4 in fan of sprinklers 3 neighbors of each of the ramps 1a, 1b crossing to produce together, at the height of the dish racks passing between the two ramps 1a, 1b, a curtain of continuous liquid, without shadows.
  • the nozzles 3 of the boom upper 1a are offset, relative to the nozzles 3 of the boom less than 1b, with a value d which is slightly greater than the thickness e of the jets 4 as a fan of the nozzles 3, so that the jets 4 of the upper ramp 1a and jets 4 of the lower ramp 1b do not meet.
  • each nozzle 3 comprises a body 5 disposed in the wall of the tube 2a, 2b of the ramp 1a, 1b, tube of which only the axis 6 is visible in Figure 3.
  • the body 5 of the nozzle 3 has a cylindrical shape that ends at one end, located outside of the tube 2a, 2b of the ramp, by a flat transverse face 7 and at the other end, located inside the tube 2a, 2b, by a shape hemispherical 8.
  • the body 5 of the nozzle 3 is traversed by a hole comprising, in the direction of passage of the washing liquid, i.e. from inside the ramp 1a, 1b outwards, of a first section 9 in the form of a slot arranged perpendicular to the axis 6 of the ramp, the first section 9 being followed by a second section 10 in the form of an oriented slot parallel to axis 6.
  • the slot constituting the first section 9 is a triangular slot having two lateral flanks 11a, 11b opposite parallel and two end flanks 12a, 12b semi-cylindrical which converge in the direction of passage of the washing liquid.
  • the slot constituting the second section 10 is a triangular slot defined by two opposite lateral sides 13a, 13b parallel and by two end flanks 14a, 14b semi-cylindrical which diverge in the direction of the washing liquid. Both triangular slots 9, 10 connect to each other at the place of their angles located inside the body 5 of the nozzle 3.
  • the depth of the slot 10 in the direction of passage of the liquid is slightly greater than the depth of the slot 9.
  • the nozzle 3 is reported in the wall of the tube 2a, 2b of the ramp, for example by welding or soldering, but it would also be possible to carry out the nozzles 3 in one piece with the tube 2a, 2b, for example by plastic molding.
  • each nozzle 3 instead of having a hemispherical shape (8) in its part located inside the ramp, could also present here a different shape, although the hemispherical shape is preferable in order to avoid mainly small waste food, fruit pits, etc. that may be found in the washing liquid circuit, despite the presence of filters in this circuit, to attach and block at the inlet of the nozzle.
  • the ratio of the respective depths of the two slots 9 and 10 may also vary, but preferably the depth of the first slot 9 which is oriented perpendicular to the axis 6 of the ramp 1a, 1b, is less than or at most equal to the depth of the second slot 10 oriented parallel to the axis 6.
  • the two slots 9 and 10 could also have flanks end 12a, 12b and 14a, 14b other than semi-cylindrical, by flat example with rounded edges at the side walls 11a, 11b and 13a, 13b.
  • all the sprinklers on the boom can be arranged in the same plane, as shown.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Detergent Compositions (AREA)
EP95400925A 1994-04-28 1995-04-25 Rampe de lavage, notamment pour machines à laver la vaisselle Expired - Lifetime EP0679365B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9405160 1994-04-28
FR9405160A FR2719209B1 (fr) 1994-04-28 1994-04-28 Rampe de lavage, notamment pour machines à laver la vaisselle.

Publications (2)

Publication Number Publication Date
EP0679365A1 EP0679365A1 (fr) 1995-11-02
EP0679365B1 true EP0679365B1 (fr) 1999-01-13

Family

ID=9462623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400925A Expired - Lifetime EP0679365B1 (fr) 1994-04-28 1995-04-25 Rampe de lavage, notamment pour machines à laver la vaisselle

Country Status (5)

Country Link
EP (1) EP0679365B1 (es)
AT (1) ATE175556T1 (es)
DE (1) DE69507186D1 (es)
ES (1) ES2129771T3 (es)
FR (1) FR2719209B1 (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100382465B1 (en) * 1995-12-27 2003-08-19 Lg Electronics Inc Device for injecting washing water of dish washer
ITBO20030607A1 (it) * 2003-10-17 2005-04-18 Premark Feg Llc Braccio di lavaggio per una macchina lavastoviglie.
KR20170057088A (ko) * 2015-11-16 2017-05-24 삼성전자주식회사 식기 세척기
US10524634B2 (en) 2017-09-29 2020-01-07 Midea Group Co., Ltd. Dishwasher with combined liquid and air sprayers
US10531781B2 (en) 2017-09-29 2020-01-14 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US11071440B2 (en) 2018-09-14 2021-07-27 Midea Group Co., Ltd. Dishwasher with rack-mounted conduit return mechanism
US10631708B2 (en) 2018-09-14 2020-04-28 Midea Group Co., Ltd. Dishwasher with docking arrangement for elevation-adjustable rack
US10765291B2 (en) 2018-09-14 2020-09-08 Midea Group Co., Ltd. Dishwasher with check valve in rotatable docking port
US11000176B2 (en) 2018-09-14 2021-05-11 Midea Group Co., Ltd. Dishwasher with rotatable diverter valve
US11045066B2 (en) 2019-03-11 2021-06-29 Midea Group Co., Ltd. Dishwasher with keyed coupling to rack-mounted conduit
US11399690B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11191416B2 (en) 2019-09-30 2021-12-07 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11484183B2 (en) 2019-09-30 2022-11-01 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11259681B2 (en) 2019-09-30 2022-03-01 Midea Group Co., Ltd Dishwasher with image-based diagnostics
US11464389B2 (en) 2019-09-30 2022-10-11 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US11026559B2 (en) 2019-09-30 2021-06-08 Midea Group Co., Ltd. Dishwasher with image-based fluid condition sensing
US11185209B2 (en) 2019-11-20 2021-11-30 Midea Group Co., Ltd. Dishwasher steam generator
US11202550B2 (en) 2019-11-20 2021-12-21 Midea Group Co., Ltd. Dishwasher thermal imaging system
US11497374B2 (en) 2020-02-19 2022-11-15 Midea Group Co., Ltd. Dishwasher with wall-mounted rotatable conduit
US11412912B2 (en) 2020-09-21 2022-08-16 Midea Group Co., Ltd. Dishwasher with tubular spray element slip ring alignment
US11484180B2 (en) 2020-11-11 2022-11-01 Midea Group Co., Ltd. Dishwasher with tubular spray element including multiple selectable spray patterns
US11826001B2 (en) 2022-02-15 2023-11-28 Midea Group Co., Ltd. Dishwasher with tubular spray element including elongated metal tube and retaining tab for mounting support member thereto

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1340517A (en) * 1920-01-02 1920-05-18 Ashley William Curtis Dish-washing machine
DE510747C (de) * 1928-06-23 1930-10-23 Albert Rodenberg Drehbare, mit Spritzduesen versehene Spuelarme fuer Geschirrspuelmaschinen
DE1302680B (es) * 1963-07-18 1970-11-26
ES2063231T3 (es) * 1990-07-10 1995-01-01 Wery Spa Un dispositivo rotativo para chorros de lavado en lavavajillas y lavavajillas equipados con dicho dispositivo.

Also Published As

Publication number Publication date
ATE175556T1 (de) 1999-01-15
FR2719209B1 (fr) 1996-07-19
DE69507186D1 (de) 1999-02-25
FR2719209A1 (fr) 1995-11-03
EP0679365A1 (fr) 1995-11-02
ES2129771T3 (es) 1999-06-16

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