EP2830475B1 - Bras gicleur en deux parties pour un lave-vaisselle - Google Patents
Bras gicleur en deux parties pour un lave-vaisselle Download PDFInfo
- Publication number
- EP2830475B1 EP2830475B1 EP12829206.7A EP12829206A EP2830475B1 EP 2830475 B1 EP2830475 B1 EP 2830475B1 EP 12829206 A EP12829206 A EP 12829206A EP 2830475 B1 EP2830475 B1 EP 2830475B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray arm
- wall
- groove
- designed
- latching element
- 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.)
- Active
Links
- 239000007921 spray Substances 0.000 title claims description 63
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 238000007789 sealing Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
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
- A47L15/18—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 invention relates to a spray arm for a dishwasher according to the preamble of claim 1, which in particular comprises a first Sprüharmteil and a second Sprüharmteil, of which the first Sprüharmteil has a substantially extending over the circumference of the first Sprüharmteils groove.
- a spray arm is off US 3 444 870 A known.
- rotating spray arms are provided for introducing and distributing washing water in an associated washing compartment.
- the spray arms are usually composed of two Sprüharm kind that enclose a cavity. In the cavity, the washing water is introduced, which is then sprayed through nozzles in the washing space of the dishwasher, wherein the nozzles are arranged on at least one of the Sprüharmmaschine.
- US 4 172 463 A is a rotatable disc element for spraying cleaning water of a dishwasher known.
- the disc member is formed with a base plate on the underside of which a first and a second rib member are provided which extend in parallel and equidistantly along a diametral axis of the disc member.
- Each rib member defines a parallel longitudinal groove by having each rib member configured with an outer and an inner rib, respectively.
- Each inner rib has an inwardly extending groove on its outer wall.
- a U-shaped cover member is provided which sealingly seals a channel formed with both rib elements and the base plate.
- the cover element comprises a respective longitudinally extending first and second side wall, each of which has an inwardly extending projection. Each projection engages connecting into the corresponding groove of the inner rib.
- the invention has for its object to provide a dishwasher with a spray arm, the Sprüharmmaschine are particularly inexpensive to produce and assemble, while also meet the requirements for tightness over the life time away.
- a spray arm for a dishwasher having a first Sprüharmteil and a second Sprüharmteil, of which the second Sprüharmteil extending substantially over the circumference of the second Sprüharmteils web wall, the web wall having a first locking element, wherein the first Sprüharmteil has a substantially extending over the circumference of the first Sprüharmteils Groove, which is formed by a first, inner groove wall and a second outer groove wall, and the web wall is designed engaging in the groove, wherein the first locking element for producing a Locking connection between the first and the second Sprüharmteil with a second locking element is designed cooperatively, which is arranged on one of the groove walls, wherein the second, outer groove wall is designed so higher than the first, inner groove wall, that the second, outer groove wall so far over the bridge wall away protrudes that, when the second Sprüharmteil is brought to the first Sprüharmteil, sufficient space for the arrangement of the locking connection is present underneath.
- the solution according to the invention provides a cost-producible, outwardly sealed, fluid-carrying cavity.
- the cavity is sealed without additional measures already after the connection of the two Sprüharmmaschine with each other. It does not require a separate operation to seal the attached components.
- the seal is ensured solely by the groove and the web wall inserted therein, while the components are also permanently coupled together by the intended locking connection.
- the inner groove wall serves to additionally support the web wall and thus increases the strength of the connection.
- the groove structure provided with the invention entails that the side walls of the spraying device are designed to be double. This is advantageous in terms of torsional rigidity and the stability of the mounted spray arm.
- the double wall design is located where the highest loads, shear forces and pressure impulses are combined with the lowest bending stiffness.
- the solution according to the invention can be very well integrated into an automated production with short cycle times, in particular with regard to a short-cycle injection molding process for producing the respective Sprüharmmaschine.
- a spray arm can be produced, which also meets high aesthetic requirements, as they are placed on a spray arm as a visible part in a dishwasher today.
- the first detent element on the outside of the web wall and the second detent element on the second, outer groove wall are formed.
- the latching connection of this type is concealed from the outside between the outer groove wall and the web wall for the viewer.
- locking cams should not be visible, so far such locking cams are e.g. used only on spray arms of the so-called third spray level, where the spray arm is located very close to the ceiling of the water tank. There, not only the visibility is limited to the spray arm, but it is also required no high tightness.
- the second, outer groove wall is designed to be higher than the first, inner groove wall.
- the outer groove wall then protrudes particularly far beyond the web wall, whereby sufficient space for the arrangement of a snap-in connection is present underneath.
- the web wall can be stepped introduced into the groove with the differently highly shaped groove walls, wherein it is first guided along the outer groove wall and only then introduced by means of the inner groove wall for sealing in the rear or deeper portion of the groove. This gradual insertion into the groove is particularly advantageous with regard to automated assembly and the resulting impermeability of the assembly.
- the first, inner groove wall are further preferably designed at its edge directed to the web wall with an insertion bevel for insertion of the web wall in the groove
- the second, outer groove wall at its edge directed to the web wall with an insertion bevel designed to insert the web wall into the groove
- / or the web wall is designed on at least one of its edges directed to the groove walls with an insertion bevel for insertion of the web wall into the groove.
- the first latching element is preferably designed as a latching nose and the second latching element as a latching recess.
- the first latching element and the second latching element are further preferably designed to extend substantially over the entire circumference of the first and the second Sprüharmteils.
- the latching connection which is substantially completely circumferential in this way, the two spray arm parts are uniformly coupled to one another over their entire circumference. The risk of local loosening, loosening or breaking of the connection is therefore minimized at the same time relatively low clamping force.
- the circumferential latching can advantageously be combined with a circumferential sealing lip on at least one of the Sprüharmmaschine that presses against the counterpart and engages over the entire circumference in the latching when latching.
- a sealing lip is not mandatory.
- first locking element and the second locking element are designed to be interrupted at predetermined distances over a small distance at the periphery of the first and the second Sprüharmteils.
- Such interruptions of the locking elements preferably extend over a distance of 0.5 cm to 1.5 cm, more preferably about 1.0 cm and are particularly in view of the design of the injection molds used for Sprüharmmaschine advantage.
- the solution according to the invention is also outstandingly suitable for providing at least one channel for receiving a mass connecting the first spray arm part to the second spray arm part from the outside into the groove.
- the introduced into the channel mass can ensure additional sealing and cohesive connection of the two Sprüharmmaschine, if desired.
- a spray arm 10 of a household dishwasher is shown having a vertical hollow cylindrical hub portion 12, projecting horizontally from the two arm portions 14 and 16 in opposite directions.
- a spray arm 10 When installed in the dishwasher state of the spray arm 10 is supplied through the hub portion 12 through with water under pressure, which is then sprayed from nozzles 18, which are arranged distributed on the spray arm 10.
- the nozzles 18 are distributed on an upper side 19 of an upper, cup-shaped Sprüharmteils 20 and possibly also on an underside 22 of a lower, also cup-shaped Sprüharmteils 24.
- the Sprüharmmaschine 20 and 24 are made of plastic by injection molding or alternatively of metal, especially stainless steel, produced by deep drawing and each with their shell shape to each other so created that a cavity 26 is formed.
- the seam or connection region between the cups placed in such a manner is sealed and designed to be positively coupled.
- the upper Sprüharmteil 20 a substantially extending over its circumference groove 28 is formed, which is formed by a first, inner groove wall 30 and a second, outer groove wall 32.
- the lower Sprüharmteil 24 a substantially also over its entire circumference extending and engaging in the groove 28 web wall 34 is formed.
- the web wall 34 is designed at its top so high that it up to the bottom of the groove 28 and there in a first, upper sealing region 36 (see Fig. 6 ) sealed by a frictional pressure against the upper Sprüharmteil 20 becomes. Furthermore, the groove 28 is designed so narrow that the web wall 34 is pushed laterally when inserted into the groove 28 against the inner groove wall 30 and there in a second, lateral sealing region 38 (see again Fig. 6 ) also seals against the upper Sprüharmteil 20. Alternatively, the web wall 34 is designed so high and / or wide that it comes to rest against the walls of the groove 28 without greater contact pressure. In this case, a seal between the upper Sprüharmteil 20 and the lower Sprüharmteil 24 is created substantially solely due to the labyrinth geometry of groove 28 and web wall 34.
- a locking connection 40 is further provided by means of which the two parts are positively coupled to each other.
- the positive coupling is produced without a separate step in the assembly of Sprüharmteil 20 and Sprüharmteil 24 during assembly of the spray arm 10.
- the web wall 34 on the lower Sprüharmteil 24 has for this purpose on the outside a first latching element 41, which cooperates with a second latching element 42 on the inside of the outer groove wall 32.
- Such locking connection 40 is not visible to the viewer of the spray arm 10 from the outside.
- the first latching element 41 is designed as a latching lug and the second latching element 42 as a latching recess extending substantially over the entire circumference of the first and the second Sprüharmteils 20 and 24 and interrupted only at the periphery at predetermined distances over a small distance 44 are.
- the second, outer groove wall 32 is designed to be higher than the first, inner groove wall 30 and protrudes far beyond the web wall 34 when the lower Sprüharmteil 24 is brought to the upper Sprüharmteil 20. Furthermore, the first, inner groove wall 30 is designed on its edge directed to the web wall 34 with an insertion bevel 46 for insertion of the web wall 34 in the groove 28, the second, outer groove wall 32 is directed to its web wall 34 edge with an insertion bevel 48 also designed for insertion of the web wall 34 in the groove 28, and the web wall 34 itself is designed at its two facing the groove walls 30 and 32 edges, each with an insertion bevel 50 and 52. With these chamfers 46, 48, 50 and 52 a total of the insertion of the web wall 34 in the groove 28 is possible even with larger dimensional differences between Sprüharmteil 20 and Sprüharmteil 24.
- the Fig. 7 Finally shows a variant of a Sprüharms 10, in which at the upper Sprüharmteil 20 at its upper edge region distributed over the handling of several channels 54 are provided for receiving a the first Sprüharmteil 20 with the second Sprüharmteil 24 mass.
- the mass can be introduced during assembly for additional sealing and cohesive connection of the two Sprüharmmaschine 20 and 24 in the channels 54 in order to distribute in particular within the groove 28 above the web wall 34.
- the Sprüharmteil 20 is also designed with a groove 28, an inner groove wall 30 and an outer groove wall 32.
- a substantially vertical slot 56 is formed in each case approximately in the middle of the arm section 14 or 16.
- the slot 56 extends substantially over the entire height of the groove wall 32 and is open to the outside or accessible from the outside.
- a rib 58 is inserted in a form-fitting manner, which is formed on the web wall 34 of the lower spray arm part 24 at the corresponding location on the outside.
- a spray arm 10 is illustrated in which functionally identical vertical slots 56 are formed on the inner groove wall 30 and ribs 58 on the inside of the web wall 34.
- Such an arrangement of slots 56 and positive ribs 58 results in a stiffening effect that is not visible from the outside.
Landscapes
- Washing And Drying Of Tableware (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Fluid-Pressure Circuits (AREA)
Claims (9)
- Bras gicleur (10) pour un lave-vaisselle comportant une première partie de bras gicleur (20) et une deuxième partie de bras gicleur (24) parmi lesquelles la deuxième partie de bras gicleur (24) comporte une paroi d'étai (34) s'étendant pour l'essentiel sur la périphérie de la deuxième partie de bras gicleur (24), la paroi d'étai (34) comportant un premier élément d'arrêt (41) ;
la première partie de bras gicleur (20) comportant une rainure (28) s'étendant pour l'essentiel sur la périphérie de la première partie de bras gicleur (20) et formée d'une première paroi de rainure (30) intérieure et d'une deuxième paroi de rainure (32) extérieure et la paroi d'étai (34) étant agencée de façon à s'emboîter dans la rainure (28), le premier élément d'arrêt (41) étant agencé de façon à interagir avec un deuxième élément d'arrêt (42) entre la première et la deuxième partie de bras gicleur (20 ; 24) pour réaliser une liaison d'arrêt (40), ledit deuxième élément étant disposé au niveau de la paroi de rainure (32) extérieure ;
caractérisé en ce que la deuxième paroi de rainure (32) extérieure est agencée de façon à être plus élevée que la première paroi de rainure (30) intérieure de telle sorte que la deuxième paroi de rainure (32) extérieure dépasse dans une mesure telle par-dessus la paroi d'étai (34) que lorsque la deuxième partie de bras gicleur (24) est approchée de la première partie de bras gicleur (20), il y a assez d'espace pour l'agencement de la liaison d'arrêt (40). - Bras gicleur selon la revendication 1, dans lequel le premier élément d'arrêt (41) est réalisé à l'extérieur au niveau de la paroi d'étai (34) et le deuxième élément d'arrêt (42) est réalisé au niveau de la deuxième paroi de rainure (32) extérieure.
- Bras gicleur selon la revendication 1 ou 2, dans lequel la première paroi de rainure (30) intérieure est agencée avec un biseau d'entrée (46) au niveau de son bord orienté vers la paroi d'étai (34) pour introduire la paroi d'étai (34) dans la rainure (28).
- Bras gicleur selon l'une quelconque des revendications 1 à 3, dans lequel la deuxième paroi de rainure (32) extérieure est agencée avec un biseau d'entrée (48) au niveau de son bord orienté vers la paroi d'étai (34) pour introduire la paroi d'étai (34) dans la rainure (28).
- Bras gicleur selon l'une quelconque des revendications 1 à 4, dans lequel la paroi d'étai (34) est agencée au niveau d'au moins un de ses bords orientés vers les parois de rainure (30 ; 32) avec un biseau d'entrée (50, 52) pour introduire la paroi d'étai (34) dans la rainure (28).
- Bras gicleur selon l'une quelconque des revendications 1 à 5, dans lequel le premier élément d'arrêt (41) est réalisé sous la forme d'un bec d'arrêt et le deuxième élément d'arrêt (42) est réalisé sous la forme d'un creux d'arrêt.
- Bras gicleur selon l'une quelconque des revendications 1 à 6, dans lequel le premier élément d'arrêt (41) et le deuxième élément d'arrêt (42) sont pour l'essentiel agencés de façon à s'étendre sur la périphérie totale de la première et de la deuxième partie de bras gicleur (20 ; 24).
- Bras gicleur selon la revendication 7, dans lequel le premier élément d'arrêt (41) et le deuxième élément d'arrêt (42) sont agencés de façon ininterrompue suivant des écartements prédéfinis à une distance (44) réduite au niveau de la périphérie de la première et de la deuxième partie de bras gicleur (20 ; 24).
- Bras gicleur selon l'une quelconque des revendications 1 à 8, dans lequel au moins un canal (54) est amené depuis l'extérieur dans la rainure (28) pour recevoir une masse reliant la première partie de bras gicleur (20) à la deuxième partie de bras gicleur (24).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12829206T PL2830475T3 (pl) | 2012-03-30 | 2012-12-19 | Dwuczęściowe ramię spryskujące do zmywarki do naczyń |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012006379A DE102012006379A1 (de) | 2012-03-30 | 2012-03-30 | Sprüharm für einen Geschirrspüler mit zwei Sprüharmteilen |
PCT/DE2012/001213 WO2013143516A1 (fr) | 2012-03-30 | 2012-12-19 | Bras gicleur en deux parties pour un lave-vaisselle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2830475A1 EP2830475A1 (fr) | 2015-02-04 |
EP2830475B1 true EP2830475B1 (fr) | 2018-07-04 |
Family
ID=47832835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12829206.7A Active EP2830475B1 (fr) | 2012-03-30 | 2012-12-19 | Bras gicleur en deux parties pour un lave-vaisselle |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130255734A1 (fr) |
EP (1) | EP2830475B1 (fr) |
CN (1) | CN104302222B (fr) |
DE (1) | DE102012006379A1 (fr) |
ES (1) | ES2688870T3 (fr) |
PL (1) | PL2830475T3 (fr) |
WO (1) | WO2013143516A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD748351S1 (en) | 2013-10-29 | 2016-01-26 | Whirlpool Corporation | Sprayer for dish washing machine |
CN103908205A (zh) * | 2014-04-17 | 2014-07-09 | 芜湖美的洗涤电器制造有限公司 | 一种洗碗机喷臂 |
DE102014225379A1 (de) * | 2014-12-10 | 2016-06-16 | Robert Bosch Gmbh | Elektrische Maschine, insbesondere Startermotor |
KR102640867B1 (ko) * | 2016-06-08 | 2024-02-27 | 삼성전자주식회사 | 식기세척기 |
GB2552397B (en) * | 2016-12-15 | 2018-10-10 | Matthew Russell Iain | Dishwasher spray arms |
KR102641369B1 (ko) * | 2018-12-12 | 2024-02-28 | 삼성전자주식회사 | 식기세척기 |
WO2020136256A1 (fr) * | 2018-12-27 | 2020-07-02 | Arcelik Anonim Sirketi | Lave-vaisselle |
TR201902651A2 (tr) * | 2019-02-21 | 2020-09-21 | Serdar Plastik Sanayi Ve Ticaret Anonim Sirketi | 2K Sızdırmaz Püskürtmeli Döner Pervane |
CN110013205B (zh) * | 2019-02-22 | 2023-04-25 | 宁波欧琳科技股份有限公司 | 一种拼接式喷淋臂及洗碗机 |
USD967571S1 (en) * | 2020-12-17 | 2022-10-18 | Midea Group Co., Ltd. | Spray arm for dishwasher |
CN112963535B (zh) * | 2021-02-02 | 2021-12-14 | 北京红岸水滴科技发展有限公司 | 一种带有转动密封结构的洗臂 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1302680B (fr) * | 1963-07-18 | 1970-11-26 | ||
US3444870A (en) * | 1966-12-12 | 1969-05-20 | Whirlpool Co | Article washing apparatus |
US4172463A (en) * | 1978-10-13 | 1979-10-30 | White Consolidated Industries, Inc. | Dishwasher upper spray and deflector disc |
DE4428434A1 (de) * | 1994-08-11 | 1996-02-15 | Boehringer Ingelheim Kg | Verschlußkappe und Verfahren zur gasblasenfreien Füllung von Behältern |
US5706983B1 (en) * | 1995-08-18 | 1999-08-24 | Calmar Inc | Trigger sprayer having a nozzle cover |
JP2000157478A (ja) * | 1998-11-30 | 2000-06-13 | Hoshizaki Electric Co Ltd | 食器洗浄機のノズル構造 |
KR101130491B1 (ko) * | 2004-09-01 | 2012-03-27 | 엘지전자 주식회사 | 식기세척기의 전면표시장치의 결합구조 |
KR101269740B1 (ko) * | 2006-06-19 | 2013-05-30 | 엘지전자 주식회사 | 세척 노즐 및 이를 구비한 식기 세척기 |
US7753062B2 (en) * | 2007-05-04 | 2010-07-13 | Electrolux Home Products, Inc. | Spray arm for a dishwasher, and associated method |
CN201234966Y (zh) * | 2008-07-15 | 2009-05-13 | 美的集团有限公司 | 一种洗碗机的喷水组件 |
CN102362804A (zh) * | 2008-12-12 | 2012-02-29 | 陆丰科 | 一种横卧台式洗碗机 |
CN101919680A (zh) * | 2009-06-16 | 2010-12-22 | 周俊 | 一种改良的洗碗机用分配器 |
US9763554B2 (en) * | 2012-02-14 | 2017-09-19 | Premark Feg L.L.G. | Warewash machine with removable rotating arm and related method |
-
2012
- 2012-03-30 DE DE102012006379A patent/DE102012006379A1/de active Pending
- 2012-12-19 EP EP12829206.7A patent/EP2830475B1/fr active Active
- 2012-12-19 PL PL12829206T patent/PL2830475T3/pl unknown
- 2012-12-19 WO PCT/DE2012/001213 patent/WO2013143516A1/fr active Application Filing
- 2012-12-19 CN CN201280073249.4A patent/CN104302222B/zh active Active
- 2012-12-19 ES ES12829206.7T patent/ES2688870T3/es active Active
-
2013
- 2013-04-01 US US13/854,277 patent/US20130255734A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
DE102012006379A1 (de) | 2013-10-02 |
WO2013143516A1 (fr) | 2013-10-03 |
CN104302222B (zh) | 2017-07-28 |
US20130255734A1 (en) | 2013-10-03 |
PL2830475T3 (pl) | 2019-03-29 |
ES2688870T3 (es) | 2018-11-07 |
EP2830475A1 (fr) | 2015-02-04 |
CN104302222A (zh) | 2015-01-21 |
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