EP2898810A1 - Ensemble d'arrosage tournant pour lave vaisselle - Google Patents
Ensemble d'arrosage tournant pour lave vaisselle Download PDFInfo
- Publication number
- EP2898810A1 EP2898810A1 EP14425005.7A EP14425005A EP2898810A1 EP 2898810 A1 EP2898810 A1 EP 2898810A1 EP 14425005 A EP14425005 A EP 14425005A EP 2898810 A1 EP2898810 A1 EP 2898810A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- socket
- sprinkler
- sprinkling assembly
- coaxial
- eccentric connector
- 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- Withdrawn
Links
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
- A47L15/14—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 a sprinkling assembly including a device to provide the sprinkler with a planetary motion.
- This expression refers to a motion in which the sprinkler not only rotates around its own axis of rotation but also follows a circular path around a second axis of rotation, similarly to Earth that in addition to the daily rotation motion also performs the annual revolution motion around the Sun (although the latter motion is elliptical).
- conventional revolving sprinkling assemblies essentially consist of a horizontal sprinkler provided with at least one propulsion nozzle at one end, as well as with wash nozzles arranged along the sprinkler to sprinkle the dishes contained in the dishwasher rack, and centrally pivoted on a vertical axis hollow socket arranged at the outlet of a water supply duct. Since the rotation axis of the sprinkler is fixed, the resulting paths followed by the nozzles consist of circumferences centered on said axis whereby the above-mentioned assembly directly sprinkles always and only the surfaces of the dishes which are along said circular paths, with a limited washing effectiveness.
- IT 1263057 discloses a revolving sprinkling assembly of planetary type capable of directly sprinkling a much greater surface of the dishes thanks to the combination of the motion of a lower rotating sprinkler with that of at least another upper revolving sprinkler mounted in an eccentric position on the lower one, the sprinkling assembly yet retaining the same horizontal overall dimension of a conventional sprinkling assembly.
- an upper revolving sprinkler of reduced size is eccentrically mounted on a conventional lower rotating sprinkler so that the motion of the upper sprinkler is the combination of two rotational motions and its nozzles follow complex trajectories. In this way the dishes are reached by the jets of water, coming from different points with different angles, emitted by the two sprinklers whereby the washing is more accurate and effective.
- a first drawback lies in its greater vertical dimension, which makes it difficult to use this configuration for the sprinkling assembly of the upper rack of a dishwasher with stacked racks.
- such a sprinkling assembly is placed on the ceiling of the wash tank or under the upper rack, and in both cases its greater vertical dimension reduces the space available for placing the dishes in the upper or lower rack respectively.
- a second drawback of the two-sprinkler structure results from the higher water flow rate required to simultaneously feed the two sprinklers, each of which has a plurality of wash nozzles and at least one end propulsion nozzle. This results in a greater consumption of water, a higher noise level for the larger amount of water that falls on the bottom of the wash tank and the need for a larger wash pump, which costs more and uses more current.
- the object of the present invention is to provide a revolving sprinkling assembly which overcomes the above-mentioned limitations of prior art planetary sprinkling assemblies.
- This object is achieved by means of a sprinkling assembly in which the sprinkler is mounted on an end socket of the supply duct through an eccentric connector while a gear coaxial with the sprinkler and driven into rotation by the latter engages a fixed toothed crown coaxial with said socket.
- the main advantages of the sprinkling assembly according to the present invention are the reduction in cost, size, noise and consumption of water and power with respect to a prior art planetary sprinkling assembly.
- the present sprinkling assembly includes a single sprinkler, therefore the assembly is small enough to be used also for the upper rack and requires less water that can be supplied by a smaller pump, which is cheaper both in manufacturing and in use.
- a revolving sprinkling assembly for dishwasher includes a conventional sprinkler 1 provided with a plurality of wash nozzles 1a and at least one end propulsion nozzle 1b.
- a supply duct (not shown) ending with a socket 2 supplies water to sprinkler 1, which is usually mounted in a rotatable manner directly on said socket 2 through a short central hollow shaft 3 provided with resilient hooks 3a that engage a corresponding peripheral rib 2a formed close to the top of socket 2.
- a first novel aspect of the present sprinkling assembly is given by the presence of an eccentric connector 4, interposed between socket 2 and shaft 3, that has a bottom portion 5 with a water inlet 5a that is out of axis with respect to a water outlet 6a formed in a top portion 6.
- Said eccentric connector 4 is further provided with coupling means that substantially reproduce the coupling means usually employed to couple members 2 and 3 between which it is arranged.
- the bottom portion 5 is provided with resilient hooks 5b similar to the resilient hooks 3 a and suitable to engage rib 2a
- the top portion 6 is provided with a peripheral rib 6b similar to rib 2a and suitable to be engaged by hooks 3a.
- sprinkler 1 is rotatably mounted on the top portion 6 of connector 4 so as to rotate with respect thereto around a first vertical axis X coaxial with the water outlet 6a, and connector 4 is in turn rotatably mounted on socket 2 of the supply duct so as to rotate with respect thereto around a second vertical axis Y coaxial with said socket 2 and with the water inlet 5a.
- a second novel aspect of the present sprinkling assembly resides in the fact that sprinkler 1 is provided with a coaxial gear 7 that engages a toothed crown 8 fixed on the supporting structure of the sprinkling assembly. More specifically, gear 7 is preferably secured at the bottom end of a vertical rod 9, aligned with the rotation axis X, which passes through connector 4 and is made integral with sprinkler 1 through a coupling head 10 that engages a pin 1c formed inside sprinkler 1.
- the toothed crown 8 is preferably formed along the internal perimeter of a ring 11 arranged coaxial with socket 2 and secured through legs 12 to a flat filter 13 integral with socket 2.
- Sprinkler 1 is supplied with water coming from the wash pump through a supply duct ending with socket 2, said water passing in the hollow body of the eccentric connector 4 through inlet 5a and outlet 6a prior to reaching shaft 3.
- FIG. 5 there is illustrated a second embodiment of a sprinkling assembly according to the invention to be mounted under the upper rack of a dishwasher with stacked racks.
- the elements that are structurally and/or functionally equivalent to the above-described elements of the first embodiment are indicated by the same reference numerals with a prime.
- the eccentric connector 4' rotatably mounted on the socket 2' of the supply duct 14, which is provided with a hook 14a for the coupling to the rack, has a double elbow shape that is more compact in the vertical direction. Furthermore, the eccentric connector 4' is mounted on socket 2', so as to rotate around a vertical axis Y', through a ring nut 15 that is provided with an external ring 15a having a toothed crown 8' formed along its internal perimeter. This ring nut 15 combines therefore the functions of the peripheral rib 2a and of ring 11 of the first embodiment.
- the hollow central shaft 3' of sprinkler 1' is shorter and rotatably mounted on the eccentric connector 4', so as to rotate around a vertical axis X', through a lock ring 16.
- shaft 3' has internal radial projections 3a' that engage the horizontal arm of an inverted-T joint 10', in the vertical leg of said joint 10' there being secured a vertical rod 9' that passes through connector 4' and carries at the top a gear 7' which engages the toothed crown 8'.
- a ring 17 of low-friction material is preferably interposed between the lock ring 16 and a top peripheral flange 3b' of shaft 3'.
- the operation of the second embodiment of the sprinkling assembly according to the present invention is substantially the same as the above-described operation of the first embodiment.
- Sprinkler 1' is supplied with water coming from the wash pump through the supply duct 14 ending with socket 2', said water passing in the hollow body of the eccentric connector 4' through inlet 5a' and outlet 6a' prior to reaching shaft 3'.
- the water jets emitted by nozzles 1a' and 1b' cause the rotation around axis X' of sprinkler 1' and therefore also of rod 9' due to the drawing of joint 10' performed by the radial projections 3a', which rod 9' carries gear 7' that engages the toothed crown 8' secured on socket 2'.
- the third embodiment illustrated in Fig.8 is a variant of the second embodiment from which it differs in the type of mounting of the eccentric connector 4' on socket 2', which in this case is not achieved through an external ring nut 15 but through a hollow shaft 19 provided with side openings 19a and a closed bottom 19b. More specifically, shaft 19 is inserted through connector 4' so that its top projects from the water inlet 5a' in order to internally engage socket 2', while the side openings 19a allow the passage of water and the closed bottom 19b abuts on connector 4' thus closing the hole through which shaft 19 is inserted.
- toothed crown 8' is formed on the internal perimeter of a ring 18 preferably formed in a single piece with socket 2' and the supply duct 14, while the rest of the structure of the sprinkling assembly is unchanged with respect to the second embodiment.
- sprinkler 1' is still mounted on connector 4' through ring 16, and gear 7' is moved by the kinematic chain made up of rod 9' mounted on joint 10' which is driven into rotation by projections 3a' of shaft 3' that is integral with sprinkler 1'.
- the transmission ratio 10:1 illustrated in the figures can be freely changed according to the desired rotational speed of sprinkler 1, 1' around axis Y, Y', for example in a range from 5:1 to 20:1.
- the toothed crown 8, 8' could be formed on the external perimeter of ring 11 or 15a/18 respectively.
- shaft 3, 3' could be formed directly on sprinkler 1, 1' or gear 7, 7' and rod 9, 9' could be obtained as a single monolithic body.
- the rotation axes X, X' and Y, Y' could be not exactly parallel as long as the alignment is maintained between axis X, X' and rod 9, 9' and the latter is perpendicular to the plane of the toothed crown 8, 8'.
Landscapes
- Washing And Drying Of Tableware (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14425005.7A EP2898810A1 (fr) | 2014-01-28 | 2014-01-28 | Ensemble d'arrosage tournant pour lave vaisselle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14425005.7A EP2898810A1 (fr) | 2014-01-28 | 2014-01-28 | Ensemble d'arrosage tournant pour lave vaisselle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2898810A1 true EP2898810A1 (fr) | 2015-07-29 |
Family
ID=50345975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14425005.7A Withdrawn EP2898810A1 (fr) | 2014-01-28 | 2014-01-28 | Ensemble d'arrosage tournant pour lave vaisselle |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2898810A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106264399A (zh) * | 2016-09-09 | 2017-01-04 | 佛山市顺德区美的洗涤电器制造有限公司 | 喷臂装置及用水家用电器 |
US20170354312A1 (en) * | 2016-06-10 | 2017-12-14 | Lg Electronics Inc. | Dishwasher |
WO2018045807A1 (fr) * | 2016-09-09 | 2018-03-15 | 佛山市顺德区美的洗涤电器制造有限公司 | Dispositif de bras de pulvérisation et appareil électroménager utilisant de l'eau |
EP3403564A1 (fr) * | 2017-05-16 | 2018-11-21 | Gorenje d.d. | Agencement de bras gicleur pour lave-vaisselle |
WO2020036558A3 (fr) * | 2018-08-13 | 2020-05-28 | Arcelik Anonim Sirketi | Lave-vaisselle à performance de lavage améliorée |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1263057B (it) | 1993-02-03 | 1996-07-24 | Smeg Spa | Gruppo irroratore girevole per macchina lavastoviglie |
EP1882435A1 (fr) * | 2006-07-24 | 2008-01-30 | Electrolux Home Products Corporation N.V. | Ensemble d'arrosage tournant |
EP2612585A1 (fr) * | 2012-01-06 | 2013-07-10 | Samsung Electronics Co., Ltd. | Ensemble de buse et lave-vaisselle l'utilisant |
-
2014
- 2014-01-28 EP EP14425005.7A patent/EP2898810A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1263057B (it) | 1993-02-03 | 1996-07-24 | Smeg Spa | Gruppo irroratore girevole per macchina lavastoviglie |
EP1882435A1 (fr) * | 2006-07-24 | 2008-01-30 | Electrolux Home Products Corporation N.V. | Ensemble d'arrosage tournant |
EP2612585A1 (fr) * | 2012-01-06 | 2013-07-10 | Samsung Electronics Co., Ltd. | Ensemble de buse et lave-vaisselle l'utilisant |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170354312A1 (en) * | 2016-06-10 | 2017-12-14 | Lg Electronics Inc. | Dishwasher |
US10660499B2 (en) * | 2016-06-10 | 2020-05-26 | Lg Electronics Inc. | Dishwasher |
CN106264399A (zh) * | 2016-09-09 | 2017-01-04 | 佛山市顺德区美的洗涤电器制造有限公司 | 喷臂装置及用水家用电器 |
WO2018045807A1 (fr) * | 2016-09-09 | 2018-03-15 | 佛山市顺德区美的洗涤电器制造有限公司 | Dispositif de bras de pulvérisation et appareil électroménager utilisant de l'eau |
CN106264399B (zh) * | 2016-09-09 | 2019-07-26 | 佛山市顺德区美的洗涤电器制造有限公司 | 喷臂装置及用水家用电器 |
EP3403564A1 (fr) * | 2017-05-16 | 2018-11-21 | Gorenje d.d. | Agencement de bras gicleur pour lave-vaisselle |
WO2020036558A3 (fr) * | 2018-08-13 | 2020-05-28 | Arcelik Anonim Sirketi | Lave-vaisselle à performance de lavage améliorée |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2898810A1 (fr) | Ensemble d'arrosage tournant pour lave vaisselle | |
US3210010A (en) | Spray device for dishwashing machines | |
ES2306324T3 (es) | Maquina lavavajillas. | |
CN103654667A (zh) | 用于洗碗机的喷嘴组件和具有该喷嘴组件的洗碗机 | |
EP3287062B1 (fr) | Ensemble bras de pulvérisation pour lave-vaisselle et lave-vaisselle comprenant ce dernier | |
US20140008462A1 (en) | Spray forming element for a shower head | |
CN103190873A (zh) | 喷嘴组件以及具有该喷嘴组件的洗碗机 | |
CN107374541B (zh) | 喷臂组件和洗碗机 | |
CA2733564C (fr) | Lave-vaisselle equipe d'un dispositif de pulverisation variable et methode d'orientation du patron de pulverisation dudit appareil | |
EP2494906B1 (fr) | Ensemble de pulvérisation pour lave-vaisselle comprenant un deuxième gicleur oscillant | |
CN107260099B (zh) | 一种洗碗机用的转动喷淋冲洗装置 | |
US2664904A (en) | Dishwashing machine | |
CN217066321U (zh) | 喷臂组件及洗涤电器 | |
KR102160603B1 (ko) | 자동식기세척기겸용 싱크대 | |
CN106821252B (zh) | 喷臂组件和具有其的洗碗机 | |
CN209122119U (zh) | 喷洗模块和洗碗机 | |
CN209547932U (zh) | 一种洗碗机用喷淋组件及具有其的洗碗机 | |
CN109965743B (zh) | 果蔬清洗机 | |
CN220344348U (zh) | 用于清洗机的喷淋结构及清洗机 | |
CN219048307U (zh) | 一种自动伸缩型洗碗机喷臂 | |
CN112842211B (zh) | 冲洗结构及具有其的清洗装置 | |
CN211093877U (zh) | 洗碗机清洗组件及洗碗机 | |
KR200300795Y1 (ko) | 식기세척기의 세척수 분사장치 | |
CN110833345A (zh) | 一种果蔬清洗机 | |
KR940011554B1 (ko) | 식기세척기의 세척수 분사장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20140128 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20160130 |