EP0918482B1 - Detachable hydraulic coupling or flow distribution valve for use in the household dishwasher - Google Patents
Detachable hydraulic coupling or flow distribution valve for use in the household dishwasher Download PDFInfo
- Publication number
- EP0918482B1 EP0918482B1 EP97932129A EP97932129A EP0918482B1 EP 0918482 B1 EP0918482 B1 EP 0918482B1 EP 97932129 A EP97932129 A EP 97932129A EP 97932129 A EP97932129 A EP 97932129A EP 0918482 B1 EP0918482 B1 EP 0918482B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- water
- hydraulic coupling
- pipe
- dishwasher
- 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
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
- A47L15/42—Details
- A47L15/50—Racks ; Baskets
- A47L15/508—Hydraulic connections for racks
-
- 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
- this invention is related to the automatic household dishwasher, and in particular, to an improved mechanism for distributing water to the dish racks.
- the conventional dishwasher contains a body in which the dish racks are placed. Dish racks glide in and out of the body of the dishwasher on slides attached to the inside walls of the dishwasher. Water is sprayed throughout the body of the dishwasher by way of a motor pump forcing water through pipes, which are connected to dishwasher blades.
- This invention is related to a special coupling for the pipe system, in which one can adjust the height of the upper dish rack.
- This special coupling provides better working conditions for the motor pump, as well as for the dishwasher blades. It also provides stabilization to the water flow, by connecting and disconnecting the pipes.
- EP 0786231 A which falls under Article 54(3) EPC, discloses a hydraulic connection device for a dishwasher rack which can be positioned at different heights according to the preamble of claim 1.
- An other hydraulic coupling of similar type is known for example from EP-A-401767.
- figure 1 a cross-sectional view of the domestic dishwasher is shown.
- the pipe (10) extending from the motor pump is fixed to the back wall of the dishwasher body, its only outlet being at point (15).
- the coupling (12) has two water inlets; one is placed at the top, and it appears to be housed in the outlet (15); the other water intlet is placed at the bottom, and has a free support at point (14) (see section A-A), which is closed with a plate. Water flowing from the motor pump passes through the outlet (15) and reaches the upper dishwasher blade (8). Water flow applies pressure onto the plate, which in turn creates an airtight seal on the lower inlet of the coupling (12).
- a safety ring (16) made of a thermoplastic material, was added. It is attached into a suitable slit on the outside of the outlet (15), and provides an airtight seal.
- the upper dish rack In the second operating position, the upper dish rack is raised upwards to accommodate the space requirements of the kitchenware. Water flow comes from the outlet (15) and goes directly to the coupling of the pipe (11), pushing the plate (13) upward to create an airtight seal.
- the plate (13) may have a second connection surface with the water inlets.
- These surfaces are made of a soft plastic material or a thermoplastic material having the hardness to endure the impact that occurs when the coupling is working.
- a non-inventive hollow sphere or a non-inventive solid sphere can also be used, instead of the plate.
- the explicit weight of this sphere maintains the constant movement within the coupling (12), which is caused by the water flowing under pressure. Details of this are shown in figures 5 and 6.
- the guide component (18) which is inserted with a trigger device, or welded within the coupling (15) has two functions. First, (see figure 6) it pushs the sphere (17) upwards to secure the water inlet in the coupling (12). Second, it provides for the correct positioning of the movable parts of the dish rack with the stable parts of the body.
- This second function can also be used with the version of the present invention using plates (see figures 2, 3 and 4).
- this invention is related to the automatic household dishwasher, and in particular, to an improved mechanism for distributing water to the dish racks.
- the conventional dishwasher contains a body in which the dish racks are placed. Dish racks glide in and out of the body of the dishwasher on slides attached to the inside walls of the dishwasher. Water is sprayed throughout the body of the dishwasher by way of a motor pump forcing water through pipes, which are connected to dishwasher blades.
- This invention is related to a special coupling for the pipe system, in which one can adjust the height of the upper dish rack.
- This special coupling provides better working conditions for the motor pump, as well as for the dishwasher blades. It also provides stabilization to the water flow, by connecting and disconnecting the pipes.
- EP 0786231A which falls under Article 54(3) EPC, discloses a hydraulic connection device for a dishwasher rack which can be positioned at different heights.
- An other hydraulic coupling of similar type is known for example from EP-A-401767.
- figure 1 a cross-sectional view of the domestic dishwasher is shown.
- the pipe (10) extending from the motor pump is fixed to the back wall of the dishwasher body, its only outlet being at point (15).
- the coupling (12) has two water inlets; one is placed at the top, and it appears to be housed in the outlet (15); the other water intlet is placed at the bottom, and has a free support at point (14) (see section A-A), which is closed with a plate. Water flowing from the motor pump passes through the outlet (15) and reaches the upper dishwasher blade (8). Water flow applies pressure onto the plate, which in turn creates an airtight seal on the lower inlet of the coupling (12).
- a safety ring (16) made of a thermoplastic material, was added. It is attached into a suitable slit on the outside of the outlet (15), and provides an airtight seal.
- the upper dish rack In the second operating position, the upper dish rack is raised upwards to accommodate the space requirements of the kitchenware. Water flow comes from the outlet (15) and goes directly to the coupling of the pipe (11), pushing the plate (13) upward to create an airtight seal.
- the plate (13) may have a second connection surface with the water inlets.
- These surfaces are made of a soft plastic material or a thermoplastic material having the hardness to endure the impact that occurs when the coupling is working.
- a hollow sphere or a solid sphere can also be used, instead of the plate.
- the explicit weight of this sphere maintains the constant movement within the coupling (12), which is caused by the water flowing under pressure. Details of this are shown in figures 5 and 6.
- a guide component (38) is necessary to facilitate the closing of the upper water inlet.
- the guide component (18) which is inserted with a trigger device, or welded within the coupling (15) has two functions. First, (see figure 6) it pushs the sphere (17) upwards to secure the water inlet in the coupling (12). Second, it provides for the correct positioning of the movable parts of the dish rack with the stable parts of the body.
- This second function can also be used with the version using plates (see figures 2, 3 and 4).
Landscapes
- Washing And Drying Of Tableware (AREA)
- Food-Manufacturing Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
- Cookers (AREA)
- Valve Housings (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR9600592 | 1996-07-17 | ||
TR9600592 | 1996-07-17 | ||
TR96005/92 | 1996-07-17 | ||
PCT/TR1997/000012 WO1998002082A1 (en) | 1996-07-17 | 1997-07-17 | Detachable hydraulic coupling or flow distribution valve for use in the household dishwasher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0918482A1 EP0918482A1 (en) | 1999-06-02 |
EP0918482B1 true EP0918482B1 (en) | 2004-10-27 |
Family
ID=21620871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97932129A Expired - Lifetime EP0918482B1 (en) | 1996-07-17 | 1997-07-17 | Detachable hydraulic coupling or flow distribution valve for use in the household dishwasher |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0918482B1 (es) |
AT (1) | ATE280531T1 (es) |
AU (1) | AU3566297A (es) |
DE (1) | DE69731387T2 (es) |
ES (1) | ES2231876T3 (es) |
WO (1) | WO1998002082A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1284791B1 (it) * | 1996-09-11 | 1998-05-21 | Merloni Elettrodomestici Spa | Macchina lavastoviglie a circuito idraulico migliorato. |
DE10155903A1 (de) * | 2001-11-14 | 2003-05-15 | Aeg Hausgeraete Gmbh | Geschirrspülmaschine |
DE102007041307A1 (de) * | 2007-08-31 | 2009-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0786231A2 (en) * | 1996-01-29 | 1997-07-30 | SMEG S.p.A. | Hydraulic connection device for a dishwasher rack which can be positioned at two different heights |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE444884B (sv) * | 1980-03-11 | 1986-05-20 | Electrolux Ab | Hushallsdiskmaskin |
IT1234696B (it) * | 1989-06-06 | 1992-05-26 | Zanussi A Spa Industrie | Lavastoviglie con cesto estraibile regolabile in altezza. |
-
1997
- 1997-07-17 AU AU35662/97A patent/AU3566297A/en not_active Abandoned
- 1997-07-17 EP EP97932129A patent/EP0918482B1/en not_active Expired - Lifetime
- 1997-07-17 WO PCT/TR1997/000012 patent/WO1998002082A1/en active IP Right Grant
- 1997-07-17 ES ES97932129T patent/ES2231876T3/es not_active Expired - Lifetime
- 1997-07-17 AT AT97932129T patent/ATE280531T1/de not_active IP Right Cessation
- 1997-07-17 DE DE69731387T patent/DE69731387T2/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0786231A2 (en) * | 1996-01-29 | 1997-07-30 | SMEG S.p.A. | Hydraulic connection device for a dishwasher rack which can be positioned at two different heights |
Also Published As
Publication number | Publication date |
---|---|
EP0918482A1 (en) | 1999-06-02 |
ES2231876T3 (es) | 2005-05-16 |
DE69731387T2 (de) | 2005-11-10 |
WO1998002082A1 (en) | 1998-01-22 |
DE69731387D1 (de) | 2004-12-02 |
ATE280531T1 (de) | 2004-11-15 |
AU3566297A (en) | 1998-02-09 |
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