EP0094409B1 - A connecting device - Google Patents

A connecting device Download PDF

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Publication number
EP0094409B1
EP0094409B1 EP82903489A EP82903489A EP0094409B1 EP 0094409 B1 EP0094409 B1 EP 0094409B1 EP 82903489 A EP82903489 A EP 82903489A EP 82903489 A EP82903489 A EP 82903489A EP 0094409 B1 EP0094409 B1 EP 0094409B1
Authority
EP
European Patent Office
Prior art keywords
bellows
conduit
rack
port
feed tube
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
Application number
EP82903489A
Other languages
German (de)
French (fr)
Other versions
EP0094409A1 (en
Inventor
Bo-Anders Ragnar Berglund
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Priority to AT82903489T priority Critical patent/ATE16887T1/en
Publication of EP0094409A1 publication Critical patent/EP0094409A1/en
Application granted granted Critical
Publication of EP0094409B1 publication Critical patent/EP0094409B1/en
Expired legal-status Critical Current

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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
    • A47L15/50—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

  • the present invention relates to a connecting device for a dish-washing machine as defined in the preamble of Claim 1.
  • a connecting device of the kind referred to is disclosed in DE-A-2,355,271.
  • the conduit to the spraying arm has funnel-shaped connecting parts which cooperate with correspondingly shaped connecting protrusions arranged on the feed tube.
  • the respective connecting parts and protrusions are loosely interconnected and to make possible the positioning of the rack at two different levels three protrusions are provided in a vertical row with the middle one being open and the two others being permanently closed.
  • the conduit has two funnel-shaped parts and at each level one funnel-shaped part cooperates with the open protrusions whereas the other cooperates with one of the closed protrusions.
  • the object of the invention is to simplify the connecting device by eliminating the protrusions and the funnel-shaped parts and to provide a tight connection between the conduit and the feed tube, thus eliminating any loss of liquid pressure that might appear in the prior art device referred to above.
  • a circulation circuit for a fluid which is pumped in a feed tube 10 which is branched into two spraying arms 11, 12 located in a washing cabinet 13 having an upper and a lower dish rack 14, 15 which can be pulled out through an opening in the front side of the machine provided with a door 16.
  • the underside of the upper rack 14 is provided with a bearing 17 of the spraying arm 11 which bearing has a passage for a conduit 18 extended backwards along the underside of the rack.
  • the conduit thus communicates with the spraying arm through the bearing so that the arm can rotate freely while the conduit stands still.
  • the feed tube has a connecting surface 19 turned to the centre of the cabinet in which surface there is a port 20 through which the fluid can pass.
  • the rear end of the conduit 18 forms a connecting house 21 extended in the vertical direction and terminated backwards by a couple of bellows 22, 23 which communicate with the conduit by holes 24, 25 in the wall.
  • a couple of bellows 22, 23 which communicate with the conduit by holes 24, 25 in the wall.
  • One or the other of the bellows 22, 23 can be used to establish the connection, in Fig. 2 the bellows 23 are used, and the rack 14 is then in an upper working position in the washing cabinet.
  • the rack 14 In use of the upper bellows (Fig. 1) the rack is in a lower working position. These positions are selectable and the selection is made with regard to the size of the dish goods.
  • guides 26, 27 in the wall At each side of the rack there are guides 26, 27 in the wall, a lower one and an upper one. When the rack is pushed in on one of these pairs of guides, the corresponding bellows meet the port 20 so that connection to the feed tube is established.
  • fluid passes through the feed tube 10 and the conduit 18 to the spraying arm 11.
  • the bellows connected to the port are safely kept in position by a force directed to the feed tube and created by the closing of the door 16 by means of a shoulder 28 on the outer end of the rack, which shoulder is pushed by the door in the direction of the rack which transfers the force to the conduit 18 and the bellows.
  • the advantages of a connecting device of this kind are principally its insensibility to deviations in the measures of the cabinet, the door, the racks, the feed tube etc.
  • the flexible bellows (which also can be in the form of a sleeve, a collar or the like) will themselves adjust their outer tightening end to the connecting surface and thereby eliminate the risk of leakage.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Cleaning In General (AREA)

Abstract

To make it possible to move the upper rack in a dish-washing machine between different levels a special spraying system is required. A connecting device for this purpose shall according to the invention comprise a feed tube (10) along the rear wall of the washing cabinet having a connecting surface (19), a system of bellows (22, 23) which, as well as the upper spraying arm (12), is mounted on the upper dish rack (14). When the rack is pushed into the cabinet one of the couple of bellows encircles a port (20) in the connecting surface and the other couple of bellows abuts the surface tightly. When the fluid is brought to circulate in the system the outer ends of the bellows are pressed against the connection surface simultaneously as the upper rack is kept in an inner position in the cabinet by the door (16).

Description

  • The present invention relates to a connecting device for a dish-washing machine as defined in the preamble of Claim 1.
  • A connecting device of the kind referred to is disclosed in DE-A-2,355,271. In this device the conduit to the spraying arm has funnel-shaped connecting parts which cooperate with correspondingly shaped connecting protrusions arranged on the feed tube. The respective connecting parts and protrusions are loosely interconnected and to make possible the positioning of the rack at two different levels three protrusions are provided in a vertical row with the middle one being open and the two others being permanently closed. The conduit has two funnel-shaped parts and at each level one funnel-shaped part cooperates with the open protrusions whereas the other cooperates with one of the closed protrusions.
  • The object of the invention is to simplify the connecting device by eliminating the protrusions and the funnel-shaped parts and to provide a tight connection between the conduit and the feed tube, thus eliminating any loss of liquid pressure that might appear in the prior art device referred to above.
  • The object will be achieved in a device having the features stated in the characterizing part of Claim 1. A preferred embodiment is disclosed in Claim 2.
  • An embodiment of a device according to the invention will be described by way of example in the following with reference to the accompanying drawings which show in
    • Fig. 1 a dish-washing machine cabinet in a vertical cross-section and
    • Fig. 2 the same cabinet having a rack in another position.
  • In the dish-washing machine according to Fig. 1 there is a circulation circuit for a fluid which is pumped in a feed tube 10 which is branched into two spraying arms 11, 12 located in a washing cabinet 13 having an upper and a lower dish rack 14, 15 which can be pulled out through an opening in the front side of the machine provided with a door 16. The underside of the upper rack 14 is provided with a bearing 17 of the spraying arm 11 which bearing has a passage for a conduit 18 extended backwards along the underside of the rack. The conduit thus communicates with the spraying arm through the bearing so that the arm can rotate freely while the conduit stands still. The feed tube has a connecting surface 19 turned to the centre of the cabinet in which surface there is a port 20 through which the fluid can pass. The rear end of the conduit 18 forms a connecting house 21 extended in the vertical direction and terminated backwards by a couple of bellows 22, 23 which communicate with the conduit by holes 24, 25 in the wall. When the upper rack is pushed against the rear wall of the cabinet one of the bellows (in Fig. 1 the bellows 22) encircles the port 20 and tightens against the connecting surface 19. The other bellows 23 abut the surface at the side of the port. When the fluid is caused to circulate in the machine a pressure arises which presses the outer ends of the bellows 22 harder to the connecting surface and the upper rack in direction to the door 16. The pressure of the fluid will then by itself provide a good tightening between the bellows 22 and the connecting surface 19. One or the other of the bellows 22, 23 can be used to establish the connection, in Fig. 2 the bellows 23 are used, and the rack 14 is then in an upper working position in the washing cabinet. In use of the upper bellows (Fig. 1) the rack is in a lower working position. These positions are selectable and the selection is made with regard to the size of the dish goods. At each side of the rack there are guides 26, 27 in the wall, a lower one and an upper one. When the rack is pushed in on one of these pairs of guides, the corresponding bellows meet the port 20 so that connection to the feed tube is established. During the washing procedure fluid passes through the feed tube 10 and the conduit 18 to the spraying arm 11. The bellows connected to the port are safely kept in position by a force directed to the feed tube and created by the closing of the door 16 by means of a shoulder 28 on the outer end of the rack, which shoulder is pushed by the door in the direction of the rack which transfers the force to the conduit 18 and the bellows. When the door is opened and the rack pulled out the feed tube and the bellow are disconnected.
  • The advantages of a connecting device of this kind are principally its insensibility to deviations in the measures of the cabinet, the door, the racks, the feed tube etc. The flexible bellows (which also can be in the form of a sleeve, a collar or the like) will themselves adjust their outer tightening end to the connecting surface and thereby eliminate the risk of leakage.

Claims (2)

1. A connecting device for a spraying system in a dish-washing machine provided with a feed tube (10) and a conduit (18) to a spraying arm (11) connected by means of a bearing (17) to a dish rack (14) in the machine, the feed tube (10) being provided with a connecting surface (19) facing said conduit and provided with a port (20), the conduit being connectable to the port via at least one pair of vertically spaced apertures (24, 25) in the end of the conduit (18),thus allowing differing vertical positions of the dish rack with respect to the feed tube, characterized in that flexible bellows, sleeves or collars (22) extend from the apertures (24, 25) in the conduit (18) in the longitudinal direction thereof and that the open outer end of one bellows, sleeve or collar (22) of the pair encircles said port (20) on pushing the conduit (18) against the tube (10), the open outer end of the other bellows, sleeve or collar (22) of the pair abuts the surface (19) at the side of the port (20) and is thereby sealed.
2. A connecting device according to Claim 1, characterized in that a tightening force on the bellows, sleeve or collar (22) is excerted by a locking device in the door (16) of the machine which device on closing of the door by means of the rack (14) and the conduit (18) pushes the bellows sleeve or collar against the connecting surface (19).
EP82903489A 1981-11-24 1982-11-18 A connecting device Expired EP0094409B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82903489T ATE16887T1 (en) 1981-11-24 1982-11-18 CONNECTING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8106996A SE442703B (en) 1981-11-24 1981-11-24 CLUTCH DEVICE FOR A DISHWASHER ORGANIZED RINSE SYSTEM
SE8106996 1981-11-24

Publications (2)

Publication Number Publication Date
EP0094409A1 EP0094409A1 (en) 1983-11-23
EP0094409B1 true EP0094409B1 (en) 1985-12-11

Family

ID=20345116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82903489A Expired EP0094409B1 (en) 1981-11-24 1982-11-18 A connecting device

Country Status (6)

Country Link
EP (1) EP0094409B1 (en)
DE (1) DE3267942D1 (en)
DK (1) DK149641C (en)
FI (1) FI77367C (en)
SE (1) SE442703B (en)
WO (1) WO1983001892A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137227C2 (en) * 1991-11-13 1999-12-16 Aeg Hausgeraete Gmbh Household dishwasher with height-adjustable upper basket
US9386904B2 (en) 2010-11-18 2016-07-12 Whirlpool Corporation Dishwasher with movable liquid conduit

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1227581B (en) * 1988-11-28 1991-04-16 Merloni Elettrodomestici Spa DISHWASHER MACHINE WITH VARIABLE LOAD POSSIBILITY
IT1234696B (en) * 1989-06-06 1992-05-26 Zanussi A Spa Industrie DISHWASHER WITH REMOVABLE HEIGHT-ADJUSTABLE BASKET.
IT1282096B1 (en) * 1996-01-29 1998-03-12 Smeg Spa HYDRAULIC CONNECTION DEVICE FOR DISHWASHER BASKET POSITIONABLE AT TWO DIFFERENT HEIGHTS
DE19611054A1 (en) * 1996-03-20 1997-09-25 Bosch Siemens Hausgeraete dishwasher
IT1284791B1 (en) * 1996-09-11 1998-05-21 Merloni Elettrodomestici Spa IMPROVED HYDRAULIC CIRCUIT DISHWASHER.
IT1289970B1 (en) * 1997-02-25 1998-10-19 Smeg Spa HYDRAULIC CONNECTION DEVICE FOR DISHWASHER BASKET POSITIONABLE AT TWO DIFFERENT HEIGHTS
IT1290112B1 (en) * 1997-03-18 1998-10-19 Smeg Spa HYDRAULIC CELL-CONNECTION DEVICE FOR DISHWASHER BASKET POSITIONABLE AT TWO DIFFERENT HEIGHTS
IT1301741B1 (en) * 1998-06-18 2000-07-07 Candy Spa DISHWASHER MACHINE WITH HEIGHT ADJUSTABLE BASKET.
US6431188B1 (en) 2000-04-03 2002-08-13 Whirlpool Corporation Dishwasher spray arm feed system
KR100413441B1 (en) * 2001-06-09 2003-12-31 엘지전자 주식회사 Washer for medical equipment
DE102007003894B4 (en) * 2007-01-19 2008-09-04 Miele & Cie. Kg Dishwasher, Spülgutträger and system of a dishwasher and a Spülgutträger
DE102007041307A1 (en) * 2007-08-31 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH dishwasher
US8166983B2 (en) 2007-12-21 2012-05-01 Wolf Appliance, Inc. Fluid supply system for appliance
DE102008016485A1 (en) 2008-03-31 2009-10-01 BSH Bosch und Siemens Hausgeräte GmbH dishwasher
DE102008020887A1 (en) * 2008-04-25 2009-10-29 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher and floor pan for such a dishwasher
RU2520044C2 (en) * 2009-06-23 2014-06-20 Электролюкс Хоум Продактс Корпорейшн Н.В. Dishwashing machine, in particular, household dishwashing machine
EP3040011B1 (en) 2014-12-31 2019-07-24 Whirlpool EMEA S.p.A Household dish-washing machine
EP3040010B1 (en) 2014-12-31 2017-08-02 Whirlpool EMEA S.p.A Household dish-washing machine
EP3040012B1 (en) 2014-12-31 2018-12-12 Whirlpool EMEA S.p.A Dishwashing machine
EP3197334B1 (en) * 2015-07-20 2019-09-04 LG Electronics Inc. Dishwasher

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI51736C (en) * 1969-02-19 1977-03-10 Sarlin Ab Oy E Equipment for use in septic tanks or other such accessible basins to connect a pipe that can be removed from the basin and a pipe that is permanently connected to the basin wall
DE2355271A1 (en) * 1973-11-06 1975-05-07 Licentia Gmbh Dishwasher with spray arm feed pipe - is loosely coupled to water feed duct attached fast to housing
DE2732540C2 (en) * 1977-07-19 1983-01-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart A crockery basket with a spray arm that can be inserted into the washing compartment of a dishwasher at two different heights
DE2732665C2 (en) * 1977-07-20 1983-01-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart A crockery basket with a spray arm that can be inserted into the washing compartment of a dishwasher at different heights

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137227C2 (en) * 1991-11-13 1999-12-16 Aeg Hausgeraete Gmbh Household dishwasher with height-adjustable upper basket
US9386904B2 (en) 2010-11-18 2016-07-12 Whirlpool Corporation Dishwasher with movable liquid conduit

Also Published As

Publication number Publication date
DK327683D0 (en) 1983-07-15
FI832667L (en) 1983-07-22
DE3267942D1 (en) 1986-01-23
EP0094409A1 (en) 1983-11-23
DK327683A (en) 1983-07-15
SE442703B (en) 1986-01-27
SE8106996L (en) 1983-05-25
FI77367B (en) 1988-11-30
FI832667A0 (en) 1983-07-22
DK149641B (en) 1986-08-25
WO1983001892A1 (en) 1983-06-09
DK149641C (en) 1987-02-09
FI77367C (en) 1989-03-10

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