EP3226739A1 - Bras gicleur rotatif amélioré et lave-vaisselle le comprenant - Google Patents

Bras gicleur rotatif amélioré et lave-vaisselle le comprenant

Info

Publication number
EP3226739A1
EP3226739A1 EP14806607.9A EP14806607A EP3226739A1 EP 3226739 A1 EP3226739 A1 EP 3226739A1 EP 14806607 A EP14806607 A EP 14806607A EP 3226739 A1 EP3226739 A1 EP 3226739A1
Authority
EP
European Patent Office
Prior art keywords
spray arm
rotating spray
aperture
main body
closure cap
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Withdrawn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
EP14806607.9A
Other languages
German (de)
English (en)
Inventor
Ismail Demircioglu
Hasret GURSOY
Didem POLAT
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP3226739A1 publication Critical patent/EP3226739A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A47L15/22—Rotary 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 a dishwasher, in particular a domestic dishwasher.
  • the present invention more particularly relates to the rotating spray arms of the dishwasher.
  • a domestic dishwasher generally comprises a tub, an upper pull-out rack, a lower pull-out rack, an upper rotating spray arm and a lower rotating spray arm which are associated with the upper pull-out rack and the lower pull-out rack respectively, a sump which is arranged into the bottom of the tub for collecting the wash liquor, a heater for heating the wash liquor, and a pump for supplying the rotating spray arms with pressurized wash liquor.
  • the rotating spray arm generally comprises a main body, an inlet port for receiving the supplied wash liquor, a channel inside the main body for conducting the wash liquor, an outlet port for discharging the wash liquor, wherein the inlet port and the outlet port open both into the channel, and a mounting means for rotatably and releasably mounting the main body into the tub.
  • the rotating spray arms sprinkle the articles inside the racks with wash liquor through their nozzles in the outlet port.
  • the wash liquor resolves the dirt from the articles and drains down together with the resolved dirt onto the bottom of the tub.
  • a filter apparatus is generally arranged into the bottom of the tub and upstream of the sump.
  • the filter apparatuses which are used in domestic dishwashers are commonly known.
  • the filter apparatus generally comprises a fine filter which has a filter surface and an aperture into which a releasable filter assembly has been inserted.
  • the filter assembly has a coarse filter which is embedded into a micro filter for sequentially filtering the dirt and draining the wash liquor into the sump.
  • the filter surface is usually inclined downwards towards the center of the filter assembly and has a plurality of fine ports for filtering the dirt and draining the wash liquor into the sump.
  • the filter assembly comprises a plurality of openings for admitting the wash liquor which streams downwards along the filter surface into the coarse filter and the micro filter.
  • the filter apparatus In general, the filter apparatus must be regularly cleaned to prevent it from clogging. In the event of clogging, the dirt which is trapped by the filter apparatus is disintegrated through the suction effect of the pump, and subsequently infiltrated. Thus, the turbidity of the circulating wash liquor increases and the cleaning performance decreases. In the event of clogging, also the dirt in the circulating wash liquor starts to soil and clog up the rotating spray arms. Even when the filter apparatus is subsequently cleaned by the user, the cleaning performance may still remain degraded due to the dirty or eventually clogged rotating spray arms. In such cases, the user contacts the customer service and complains about the poor cleaning performance. In general, the maintenance of the rotating spray arms are comparatively cost-intensive since it generally requires the replacement of the dirty and clogged rotating spray arms through a service person.
  • An objective of the present invention is to provide a rotating spray arm for use in a dishwasher, and a dishwasher having the same which overcomes the aforementioned drawbacks of the prior art in a cost effective way and which enables an improved cleanliness and an improved cleaning performance.
  • the rotating spray arm of the present invention comprises one or more than one openable/closable aperture for manually flushing out its channel and ports with tap water or detergent containing water.
  • the rotating spray arm of the present invention also comprises an opening/closing means for manually and leak-tightly opening/closing each aperture. Each aperture opens into the channel and is fluidly connected with the inlet port and outlet port.
  • the user has been enabled to flush out the dirt and soil inside the rotating spray arms in the event of clogging.
  • the user may, of course, clean the rotating spray arms also regularly for improving the cleanliness of the dishwasher even before the occurrence of any clogging.
  • the user has been enabled to clean the interior of the rotating spray arms by way of demounting the spray from the tub, opening the aperture of the rotating spray arm, and flushing out the channel and the ports with tap water or detergent containing water through the aperture. After the flushing process, the user closes the aperture and remounts the rotating spray arm into the tub. Thereby, the cleaning performance of the dishwasher can be easily recovered.
  • the need for replacing the clogged rotating spray arm by a new one through a service person has been obviated or reduced as much as possible.
  • the cost for the replacement through the customer service as well as the valuable resources can be saved.
  • the cleanliness and the cleaning performance of the dishwasher have been improved. Thereby, the customer satisfaction can be increased.
  • the opening/closing means comprises a closure member such as a closure cap or a closure lid which can be leak tightly attached to the corresponding aperture by hand.
  • the closure member is releasable.
  • the closure member can be hinged on the rotating spray arm through an integral or a separate hinge.
  • the attachment between the closure member and the aperture is established by a bayonet connection, a threaded connection, a snap-fit connection, a press fit connection or the like.
  • a gasket is disposed between the closure member and the aperture for improving the leak-tightness.
  • the aperture is located in close proximity to the tips of the rotating spray arm. In this embodiment, only one of the tips has an aperture. Alternatively both of the tips may be provided with a separate aperture.
  • the aperture may have a diameter which ranges between one to four centimeters.
  • the aperture has a relatively large size in comparison with the size of the nozzles of the outlet port such that any pieces of dirt can be easily removed through the aperture to the outside.
  • Figure 1 – is a schematic perspective view of a dishwasher which has rotating spray arms according to an embodiment of the present invention
  • Figure 2 – is a schematic perspective view of a rotating spray arm according to an embodiment of the present invention, prior to closing the aperture with a closure cap;
  • Figure 3 – is another schematic perspective view of the rotating spray arm according to an embodiment of the present invention, prior to closing the aperture with the closure cap;
  • Figure 4 – is a schematic enlarged partial perspective view of the rotating spray arm according to an embodiment of the present invention, prior to closing the aperture with the closure cap;
  • Figure 5 – is a schematic enlarged partial perspective view of the rotating spray arm according to an embodiment of the present invention, prior to rotating the closure cap from the unlocked state to the locked state;
  • Figure 6 – is a schematic enlarged partial perspective view of the rotating spray arm according to an embodiment of the present invention, after having rotated the closure cap to the locked state;
  • Figure 7 – is a schematic enlarged perspective view of the closure cap according to an embodiment of the present invention.
  • the rotating spray arm (1) is suitable for use in a dishwasher (2).
  • the rotating spray arm (1) comprises a main body (3), an inlet port (4) for receiving wash liquor, a channel (5) inside the main body (3) for conducting the wash liquor, an outlet port (6) for discharging the wash liquor, wherein the inlet port (4) and the outlet port (6) open both into the channel (5) and a mounting means (7) for rotatably and releasably mounting the main body (3) into the tub (not shown) of the dishwasher (2).
  • the rotating spray arm (1) of the present invention comprises an openable/closable aperture (8) for flushing out the channel (5) and said ports (4,6) with tap water or detergent containing water, wherein the aperture (8) opens into the channel (5) and an opening/closing means (9) for manually and leak-tightly opening/closing the aperture (8).
  • the dishwasher (2) of the present invention comprises a tub, and one or more than one rotating spray arm (1) which is rotatably mounted into the tub.
  • the opening/closing means (9) comprises a releasable closure cap (10) for manually and leak-tightly opening/closing the aperture (8).
  • the closure cap (10) has a bayonet connector (11).
  • the aperture (8) has a counterpart bayonet connector (12) which locks with or unlocks from the bayonet connector (11) upon rotation.
  • the bayonet connector (11) comprises two diametrically opposed projections (13) which are disposed on the closure cap (10).
  • the counterpart bayonet connector (12) has two diametrically opposed matching recesses (14) which are disposed in the periphery of the aperture (8).
  • the projections (13) respectively fit through the recesses (14) in the unlocked state, and the catch from below the periphery of the aperture (8) in the locked state.
  • closure cap (10) and the aperture (8) are releasably connectable respectively via a threaded connection, a snap-fit connection or a press fit connection instead of the above-described bayonet connection.
  • the closure cap (10) has a flange (15) for seating onto the periphery of the aperture (8).
  • the closure cap (10) also has a plug (16) for fitting into the aperture (8).
  • the projections (13) are disposed onto the underside of the plug (16).
  • the closure cap (10) has a grip (17) for holding with the fingers.
  • the grip (17) has a semicircular shape.
  • closure cap (10) is moulded as a single piece from plastic material (Fig. 1 to 7).
  • the closure cap (10) can be manufactured from metal.
  • the rotating spray arm (1) has a gasket (not shown) which is disposed between the closure cap (10) and the periphery of the aperture (8).
  • the aperture (8) is disposed in close proximity to the tip of the main body (3).
  • the main body (3) has an upper side and a lower side.
  • the inlet port (4) and the aperture (8) are disposed onto the upper side.
  • the main body (3) has a hub (18).
  • the mounting means (7) and the inlet port (4) are disposed onto the hub (18).
  • the main body (3) extends in diametrically opposed radial directions with respect to the rotation axis of hub (18).
  • the outlet port (6) has one or more than one nozzles (not shown).
  • the user has been enabled to flush out the dirt and soil inside the rotating spray arms (1) through the openable/closable aperture (8).
  • the user can easily increase the cleanliness and recover the cleaning performance of the dishwasher (2) in the event of clogging.
  • the customer satisfaction can be increased.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

La présente invention concerne un bras gicleur rotatif (1) destiné à être utilisé dans un lave-vaisselle (2). Le bras gicleur rotatif (1) comprend un corps principal (3), un orifice d'admission (4) destiné à recevoir une liqueur de lavage, un canal (5) à l'intérieur du corps principal (3) destiné à acheminer la liqueur de lavage, un orifice d'évacuation (6) destiné à évacuer la liqueur de lavage, l'orifice d'admission (4) et l'orifice d'évacuation (6) s'ouvrant tous deux dans le canal (5), et un moyen de montage (7) pour le montage rotatif et amovible du corps principal (3) dans la cuve du lave-vaisselle (2).
EP14806607.9A 2014-12-02 2014-12-02 Bras gicleur rotatif amélioré et lave-vaisselle le comprenant Withdrawn EP3226739A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/076193 WO2016086961A1 (fr) 2014-12-02 2014-12-02 Bras gicleur rotatif amélioré et lave-vaisselle le comprenant

Publications (1)

Publication Number Publication Date
EP3226739A1 true EP3226739A1 (fr) 2017-10-11

Family

ID=52007008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14806607.9A Withdrawn EP3226739A1 (fr) 2014-12-02 2014-12-02 Bras gicleur rotatif amélioré et lave-vaisselle le comprenant

Country Status (3)

Country Link
US (1) US20170354307A1 (fr)
EP (1) EP3226739A1 (fr)
WO (1) WO2016086961A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD748351S1 (en) * 2013-10-29 2016-01-26 Whirlpool Corporation Sprayer for dish washing machine
GB2552397B (en) * 2016-12-15 2018-10-10 Matthew Russell Iain Dishwasher spray arms
DE102018201218A1 (de) * 2018-01-26 2019-08-01 Meiko Maschinenbau Gmbh & Co. Kg Waschsystem zum reinigen von reinigungsgut
CN110870734B (zh) * 2018-08-30 2023-02-28 青岛海尔洗碗机有限公司 可清洗的喷淋器及洗碗机
USD956372S1 (en) * 2019-11-26 2022-06-28 Whirlpool Corporation Spray arm for a dish treating appliance
DE102020104642A1 (de) * 2020-02-21 2021-08-26 Illinois Tool Works Inc. Wascharm

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637595A (en) * 1946-10-03 1953-05-05 Hobart Mfg Co Rinse arm connection
JPH0942243A (ja) * 1995-05-23 1997-02-10 Hoshizaki Electric Co Ltd 二部材の連結構造
DE602006007115D1 (de) * 2006-06-21 2009-07-16 Getinge Disinfection Ab Desinfektionsvorrichtung mit Sprühmitteln
IT1403024B1 (it) * 2010-06-10 2013-09-27 Steelco Spa Girante di lavaggio e macchina di lavaggio comprendente tale girante
CN203789884U (zh) * 2014-04-02 2014-08-27 美的集团股份有限公司 洗碗机喷臂组件及洗碗机

Also Published As

Publication number Publication date
WO2016086961A1 (fr) 2016-06-09
US20170354307A1 (en) 2017-12-14

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