ITPN940044A1 - DISHWASHER WITH PERFECTED CUSHIONING DEVICES - Google Patents
DISHWASHER WITH PERFECTED CUSHIONING DEVICES Download PDFInfo
- Publication number
- ITPN940044A1 ITPN940044A1 IT000044A ITPN940044A ITPN940044A1 IT PN940044 A1 ITPN940044 A1 IT PN940044A1 IT 000044 A IT000044 A IT 000044A IT PN940044 A ITPN940044 A IT PN940044A IT PN940044 A1 ITPN940044 A1 IT PN940044A1
- Authority
- IT
- Italy
- Prior art keywords
- motor
- support means
- dishwasher
- support
- dishwasher according
- Prior art date
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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
- A47L15/4209—Insulation arrangements, e.g. for sound damping or heat insulation
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Washing And Drying Of Tableware (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Buffer Packaging (AREA)
- Table Devices Or Equipment (AREA)
Description
Descrizione del Brevetto per invenzione indùstriale avente per titolo: Description of the patent for an industrial invention entitled:
"Lavastoviglie con dispositivi perfezionati di ammortizzamento" "Dishwashers with Improved Damping Devices"
L’invenzione riguarda una lavastoviglie, particolarmente per impiego domestico, dotata di particolari dispositivi di ammortizzamento delle vibrazioni generate e trasmesse dal motore della pompa di ricircolo. The invention relates to a dishwasher, particularly for domestic use, equipped with particular damping devices for the vibrations generated and transmitted by the recirculation pump motor.
Sono note lavastoviglie domestiche dotate di una vasca di lavaggio la cui porzione inferiore e' chiusa da un componente separato, generalmente noto come "pozzetto". Domestic dishwashers are known which are equipped with a washing tank the lower portion of which is closed by a separate component, generally known as a "well".
Tale pozzetto ha soprattutto le funzioni di alloggiare i filtri del liquido di lavaggio, le giranti delle pompe utilizzate per il ricircolo e per lo scarico, nonché’ la porzione del condotto di ricircolo che supporta il mulinarlo inferiore e lo alimenta con liquido pompato dalla pompa di ricircolo . This well has above all the functions of housing the filters of the washing liquid, the impellers of the pumps used for recirculation and drainage, as well as the portion of the recirculation duct that supports the lower reel and feeds it with liquid pumped by the pump. recirculation.
Recenti sviluppo tecnologici hanno potuto conseguire il risultato che dette pompe di ricircolo e di scarico sono state unificate in una sola pompa, e per semplicità’ nel seguito del brevetto si fara’ riferimento a detta unica pompa, ma rimane inteso che l’invenzione si applica indipendentemente ad entrambe dette pompe e relative giranti nel caso di lavastoviglie dotate di entrambe dette pompe. Data la complessità' strutturale di tale pozzetto, esso viene quindi utilmente realizzato come componente separato, generalmente in materiale plastico, e solo successivamente associato stabilmente ed ermeticamente al fondo della vasca in modo da costituire con questa un unico assieme a tenuta. Tale tipo di costruzione può* essere realizzata con moltissime varianti a seconda delle esigenze funzionali e costruttive, ed e’ generalmente soddisfacente. Recent technological developments have been able to achieve the result that said recirculation and discharge pumps have been unified in a single pump, and for the sake of simplicity 'later in the patent reference will be made to said single pump, but it is understood that the invention applies independently of both said pumps and relative impellers in the case of dishwashers equipped with both said pumps. Given the structural complexity of this sump, it is therefore usefully made as a separate component, generally in plastic material, and only subsequently associated stably and hermetically to the bottom of the tank so as to form a single sealed assembly with it. This type of construction can * be made with many variations depending on the functional and construction needs, and is generally satisfactory.
Tuttavia essa presenta un inconveniente finora non efficacemente eliminato: infatti la presenza della girante della pompa entro il pozzetto provoca una fastidiosa rumorosità’ imputabile a due cause: la prima causa e' dovuta al fatto che l'albero di trasmissione del moto dal motore della pompa, esterno al pozzetto, alla sua girante interna a questo, deve passare per un foro opportuno, naturalmente a tenuta, praticato nella parete del'pozzetto. However, it has a drawback that has not been effectively eliminated so far: in fact the presence of the pump impeller inside the well causes an annoying noise due to two causes: the first cause is due to the fact that the drive shaft of the pump motor , external to the well, to its impeller inside it, must pass through a suitable hole, naturally sealed, made in the wall of the well.
Questo fatto ha come conseguenza che le vibrazioni e la rumorosità’ indotte dal motore su detto albero si trasmettano al pozzetto, che essendo di materiale rigido e di ' forma concava si comporta come una cassa armonica ritrasmettendo detto rumore entro la vasca e da qui in generale a tutta la macchina. This fact has the consequence that the vibrations and the noise induced by the engine on said shaft are transmitted to the cockpit, which being of rigid material and of a concave shape behaves like a sound box by retransmitting said noise inside the tank and from here in general. to the whole machine.
La seconda causa e' dovuta al fatto che lo stesso motore e’ normalmente fissato in modo diretto o indiretto sul basamento della macchina, e quindi si verifica il fenomeno analogo che le vibrazioni ed il rumore generati dal motore si trasmettano all’intera macchina tramite detto basamento. Sarebbe quindi desiderabile, ed e’ scopo della presente invenzione, di poter realizzare una lavastoviglie dotata di una pompa e relativi accessori di montaggio atti ad evitare tutti gli inconvenienti anzidetti, e che tale realizzazione possa attuarsi in modo semplice, affidabile, economico e con le tecnologie attuali. The second cause is due to the fact that the same motor is normally fixed directly or indirectly on the base of the machine, and therefore the analogous phenomenon occurs that the vibrations and noise generated by the motor are transmitted to the entire machine through said basement. It would therefore be desirable, and it is an object of the present invention, to be able to produce a dishwasher equipped with a pump and relative mounting accessories suitable for avoiding all the aforementioned drawbacks, and for this realization to be carried out in a simple, reliable, economical way and with the current technologies.
Tale soluzione viene ottenuta come descritto nelle allegate rivendicazioni del brevetto. L'invenzione verrà’ meglio compresa dalla seguente descrizione, a solo scopo d’esempio non limitativo e con riferimento agli allegati disegni in cui - le figg. 1 e 2 mostrano in sezione frontale rispettivamente la vasca ed il basamento di una lavastoviglie domestica secondo l’invenzione, This solution is obtained as described in the attached patent claims. The invention will be better understood from the following description, for non-limiting example purposes only and with reference to the attached drawings in which - figs. 1 and 2 show in front section respectively the tub and the base of a domestic dishwasher according to the invention,
la fig. 3 mostra un ingrandimento di un particolare di fig . 2, fig. 3 shows an enlargement of a detail of fig. 2,
- la fig. 4 mostra una sezione trasversale di un particolare di fig. 2, - fig. 4 shows a cross section of a detail of fig. 2,
- la fig. 5 mostra una variante del particolare di fig. 3. - fig. 5 shows a variant of the detail of fig. 3.
Con riferimento alle figure 1 e 2, viene mostrata una lavastoviglie domestica dotata di una vasca 4,di un pozzetto inferiore 2 applicato a tenuta contro la parte inferiore di detta vasca, di una pompa di ricircolo o di scarico costituita da una girante 14 interna a detto pozzetto ed un motore 5 disposto al suo esterno. With reference to Figures 1 and 2, a domestic dishwasher is shown equipped with a tank 4, a lower sump 2 applied hermetically against the lower part of said tank, a recirculation or drain pump consisting of an impeller 14 inside a said cockpit and an engine 5 arranged outside it.
Detto motore e' stabilmente disposto su un basamento della lavastoviglie e comunque su un opportuno mezzo di supporto 3. Secondo lo stato dell'arte l'albero di trasmissione che collega il motore alla girante e’ un elemento continuo, e ruota entro opportuni elementi di scorrimento rotatorio a tenuta entro un foro praticato nella parete del pozzetto. Said motor is stably arranged on a base of the dishwasher and in any case on a suitable support means 3. According to the state of the art, the transmission shaft which connects the motor to the impeller is a continuous element, and rotates within suitable elements of sealed rotary sliding within a hole made in the pit wall.
L’invenzione consiste essenzialmente nel dotare il motore di un isolamento completo tra le sue parti che sono a contatto con gli elementi della struttura esterna e detti elementi, così che il rumore e le vibrazioni trasmesse da dette parti del motore vengono efficacemente e quasi totalmente bloccate. A tale scopo l’albero del motore viene scomposto in due porzioni coassiali e separate, di cui una prima porzione 6 e’ vincolata alla girante passando attraverso un foro praticato nella parete del pozzetto, ed una seconda porzione 7 e’ vincolata al rotore del motore. The invention essentially consists in providing the motor with complete insulation between its parts which are in contact with the elements of the external structure and said elements, so that the noise and vibrations transmitted by said parts of the motor are effectively and almost totally blocked. . For this purpose the motor shaft is split into two coaxial and separate portions, of which a first portion 6 is constrained to the impeller passing through a hole made in the well wall, and a second portion 7 is constrained to the motor rotor. .
Dette porzioni vengono quindi collegate tra loro tramite un giunto elastico, ed in particolare, con riferimento alle figure, tale giunto e' costituito da un manicotto cavo internamente 8, nelle cui parti terminali cave vengono inserite e bloccate le estremità’ contrapposte 9, 10 di dette rispettive prima porzione 6 e seconda porzione 7. Said portions are then connected to each other by means of an elastic joint, and in particular, with reference to the figures, this joint is constituted by an internally hollow sleeve 8, in whose hollow end parts the opposite ends 9, 10 of said respective first portion 6 and second portion 7.
Per quanto riguarda l'isolamento tra il motore e la sua struttura o mezzo di supporto 3, esso viene realizzato interponendovi opportuni elementi elastici; si e' determinato che un elemento elastico particolarmente efficace e di facile applicazione e' costituito da almeno una fascia 11 composta di materiale elastico, preferibilmente un elastomero, avvolgente il motore ed applicata con mezzi noti in se’ a detto mezzo di supporto 3; vantaggiosamente detta almeno una fascia 11 e' dotata nella sua zona di contatto con il mezzo di supporto 3 di una prominenza 12 atta ad impegnarsi a scatto in un opportuno foro passante 13 praticato in detto mezzo di supporto nella zona di contatto con detto elemento a fascia. As regards the insulation between the motor and its structure or support means 3, this is achieved by interposing suitable elastic elements therein; it has been determined that a particularly effective and easy-to-apply elastic element consists of at least a band 11 composed of elastic material, preferably an elastomer, enveloping the motor and applied by means known per se to said support means 3; advantageously, said at least one band 11 is provided in its contact area with the support means 3 with a protrusion 12 able to snap into a suitable through hole 13 made in said support means in the contact area with said band element .
E’ stato anche osservato che l’effetto ammortizzante viene esaltato se la porzione di detta fascia interposta 14 tra il motore e il mezzo di supporto presenta una pluralità’ di incavature o fori passanti 15. It has also been observed that the shock-absorbing effect is enhanced if the portion of said band 14 interposed between the motor and the support means has a plurality of recesses or through holes 15.
Una utile ed economica variante a tale fascia e’ realizzata interponendo una pluralità’ di elementi elastici 17 tra detto mzzo di supporto 3 ed una rispettiva pluralità’ di piedini 16 sostenenti detto motore. A useful and economical variant of this band is made by interposing a plurality of elastic elements 17 between said support means 3 and a respective plurality of feet 16 supporting said motor.
Claims (1)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT94PN000044A IT1267734B1 (en) | 1994-07-15 | 1994-07-15 | DISHWASHER WITH PERFECT CUSHIONING DEVICES |
GB9514045A GB2290948B (en) | 1994-07-15 | 1995-07-10 | Dishwashing machine with improved damping devices |
DE29511295U DE29511295U1 (en) | 1994-07-15 | 1995-07-12 | Dishwasher with improved damping devices |
FR9508528A FR2722387A1 (en) | 1994-07-15 | 1995-07-13 | DISHWASHER WITH IMPROVED DAMPING DEVICES |
ES09501953U ES1031676Y (en) | 1994-07-15 | 1995-07-14 | DISHWASHER WITH PERFECTED CUSHIONING DEVICES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT94PN000044A IT1267734B1 (en) | 1994-07-15 | 1994-07-15 | DISHWASHER WITH PERFECT CUSHIONING DEVICES |
Publications (3)
Publication Number | Publication Date |
---|---|
ITPN940044A0 ITPN940044A0 (en) | 1994-07-15 |
ITPN940044A1 true ITPN940044A1 (en) | 1996-01-15 |
IT1267734B1 IT1267734B1 (en) | 1997-02-07 |
Family
ID=11394935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT94PN000044A IT1267734B1 (en) | 1994-07-15 | 1994-07-15 | DISHWASHER WITH PERFECT CUSHIONING DEVICES |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE29511295U1 (en) |
ES (1) | ES1031676Y (en) |
FR (1) | FR2722387A1 (en) |
GB (1) | GB2290948B (en) |
IT (1) | IT1267734B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29811703U1 (en) * | 1998-07-01 | 1999-11-11 | AEG Hausgeräte GmbH, 90429 Nürnberg | Household appliance with a component that can be coupled to a base body |
US7409959B2 (en) * | 2003-10-29 | 2008-08-12 | Whirlpool Corporation | Dishwasher and motor cavity sound attenuator |
US20090173368A1 (en) * | 2008-01-09 | 2009-07-09 | Electrolux Home Products, Inc. | Drain pump assembly for a dishwasher and associated device and method |
KR101634172B1 (en) | 2009-04-03 | 2016-06-28 | 엘지전자 주식회사 | Dish washer |
CN105615802B (en) * | 2014-10-31 | 2018-12-11 | 青岛海尔洗碗机有限公司 | A kind of dish-washing machine |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB444799A (en) * | 1934-10-19 | 1936-03-27 | British Thomson Houston Co Ltd | Improvements in and relating to resilient mountings for dynamo electric machines |
GB529176A (en) * | 1939-05-13 | 1940-11-15 | William John Tennant | Improvements in or relating to the arrangement of vertical-shaft centrifugal pumps with direct coupled electric driving motors |
US2352049A (en) * | 1942-11-07 | 1944-06-20 | Gen Electric | Shock mounted instrument |
US2842002A (en) * | 1955-12-05 | 1958-07-08 | Westinghouse Electric Corp | Driving unit for a laundry machine |
GB852546A (en) * | 1957-11-04 | 1960-10-26 | Metalastik Ltd | Improvements in or relating to resilient mounting blocks |
DE1628779A1 (en) * | 1966-05-11 | 1970-07-02 | Siemens Elektrogeraete Gmbh | Drain pump, especially for washing machines or dishwashers |
BE693794A (en) * | 1967-02-08 | 1967-08-08 | Acec | Method and device for fixing a vibrating element on a fixed support |
US3906967A (en) * | 1974-05-08 | 1975-09-23 | Maytag Co | Dishwasher |
US4221547A (en) * | 1978-09-18 | 1980-09-09 | White Consolidated Industries, Inc. | Resilient mount for dishwasher motor and pump assembly |
US5174318A (en) * | 1991-05-20 | 1992-12-29 | Whirlpool Corporation | Motor mount for domestic dishwasher |
DE9211880U1 (en) * | 1992-09-03 | 1994-01-05 | Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt | Arrangement for mounting and suspension of motor / pump units in household dishwashers |
DE9215365U1 (en) * | 1992-11-11 | 1994-03-17 | Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt | Arrangement and mounting of the lye circulation pump including drive motor in household dishwashers |
-
1994
- 1994-07-15 IT IT94PN000044A patent/IT1267734B1/en active IP Right Grant
-
1995
- 1995-07-10 GB GB9514045A patent/GB2290948B/en not_active Expired - Fee Related
- 1995-07-12 DE DE29511295U patent/DE29511295U1/en not_active Expired - Lifetime
- 1995-07-13 FR FR9508528A patent/FR2722387A1/en active Pending
- 1995-07-14 ES ES09501953U patent/ES1031676Y/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2290948B (en) | 1997-07-16 |
GB2290948A (en) | 1996-01-17 |
ES1031676Y (en) | 1996-06-01 |
GB9514045D0 (en) | 1995-09-06 |
FR2722387A1 (en) | 1996-01-19 |
IT1267734B1 (en) | 1997-02-07 |
ES1031676U (en) | 1996-01-16 |
ITPN940044A0 (en) | 1994-07-15 |
DE29511295U1 (en) | 1995-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970717 |