EP0401767A1 - Geschirrspüler mit herausnehmbarem und vertikal versetzbarem Geschirrkorb - Google Patents

Geschirrspüler mit herausnehmbarem und vertikal versetzbarem Geschirrkorb Download PDF

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Publication number
EP0401767A1
EP0401767A1 EP90110645A EP90110645A EP0401767A1 EP 0401767 A1 EP0401767 A1 EP 0401767A1 EP 90110645 A EP90110645 A EP 90110645A EP 90110645 A EP90110645 A EP 90110645A EP 0401767 A1 EP0401767 A1 EP 0401767A1
Authority
EP
European Patent Office
Prior art keywords
collector
connecting pipe
dishwasher
basket
tank
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.)
Granted
Application number
EP90110645A
Other languages
English (en)
French (fr)
Other versions
EP0401767B1 (de
Inventor
Alladino Borghese
Claudio Milocco
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi SpA
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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Priority to AT90110645T priority Critical patent/ATE99521T1/de
Publication of EP0401767A1 publication Critical patent/EP0401767A1/de
Application granted granted Critical
Publication of EP0401767B1 publication Critical patent/EP0401767B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 domestic dishwasher equipped with removable baskets for supporting the dishes to be washed, at least one of said baskets being selectively ad­justable in height.
  • WO 83/01892 discloses a dishwasher of this type comprising a washing tank housing a lower and an upper basket each having rotating spray arms disposed therebelow. Both baskets are re­movable and the upper one is selectively adjustable in height, that is, it can be disposed on a first or a second level depending on the dimensions of the dishes disposed in the baskets.
  • the arm associated with the basket is supported by the basket and may be removed together with it.
  • the upper arm is equipped with a connecting pipe extending horizontally, between the arm and the basket, toward the back wall of the washing tank and adapted to join up in detachable fashion with a water supply pipe extending vertically in cor­respondence with the back wall of the tank.
  • the connecting pipe is designed at one end with a box collector extending upward and equipped with two vertically spaced holes adapted to be selectively coupled with a discharge opening of the supply pipe when the basket is disposed in each adjustable position.
  • flexible bellows extend from each hole of the box collector toward the supply pipe.
  • one of the bellows connects the outlet of the supply pipe with the connecting pipe of the upper arm, while the other tightly closes the other hole of the collector, resting against the back wall of the tank.
  • a dishwasher of this type is quieter and easier to dimension than the solutions in which, as described for example in Bri­tish patent no. 1 514 652, the upper arm is supplied from above via an interruption in the air that causes undesirable noise and necessitates a hydraulic circuit with critical di­mensioning for restoring the water pressure.
  • a dishwasher of the above-mentioned type has the disadvantage that when the upper basket is in the lo­wer adjustable position - which is the one normally employed by the user - the supply water to the upper arm follows a de­vious path, which results in undesirable hydraulic noise and substantial head losses that limit the performance of the ma­chine.
  • the path of the water includes three successive 90° bends in the passage from the supply pipe to the upper hole of the collector, downward within the collec­tor and then toward the connecting pipe of the upper arm.
  • Each discharge hole of the supply pipe is equipped with a valve comprising a disk obstructor equipped with a compres­sion spring adapted to maintain it normally in a position closing the hole.
  • Each obstructor is adapted to slide axially along a guide retainer, overcoming the force of the spring, when the end of the connecting pipe is inserted into the respective hole, which is therefore open.
  • the main object of the present invention is to provide a dishwasher having a removable, vertically adjustable basket wherein the hydraulic circuit for supplying the arm associa­ted with the basket has no interruption in the air and the arm has the maximum length permitted by the geometrical fea­tures of the washing tank.
  • Another object of the invention is to provide a dishwasher of the aforesaid type wherein the hydraulic circuit for sup­plying the arm has low hydraulic noise and reduced head los­ses, requires a minimal number of components and is reliable in operation.
  • the inventive dishwasher basically com­prises a washing tank 6 having a parallelepiped shape with a square or rectangular plan, and housing a lower basket 7 and an upper basket 8 adapted to be pulled out to be loaded with the dishes.
  • An associated rotating spray arm 9, 10 is dispo­sed below each basket.
  • upper basket 8 is selectively adjustable in height, in a way known as such and not shown, between a first position (shown in Fig. 1) and at least one second upper po­sition.
  • the distance between the first and second positions is preferably in the range of a few centimeters.
  • Arm 10 associated with upper basket 8 is supported rotatingly by the basket in a way that is known and not shown.
  • arm 10 rotates about a substantially vertical axis and has the maximum length permitted by the geometrical features of tank 6 in such a way as to occupy the maximum possible area during its rotation, thereby producing an opti­mal washing effect.
  • arm 10 is adapted to be supplied with washing water via a connecting pipe 11 disposed substantially horizontally between the arm and cor­responding basket 8 and extending toward back wall 12 of tank 6, where it is adapted to join up in detachable fashion with a box collector 13 that will be described in the following and is disposed in correspondence with back wall 12 of the tank.
  • a water supply pipe extends within tank 6 from the bottom thereof, having a first inclined or substantially vertical portion 14 adjacent one corner 15 of the tank, and a second substantially horizontal portion 16 adjacent back wall 12 of tank 6 that joins up la­terally with collector 13.
  • the shape and position of the supply pipe are such that it does not impede the rotation of arm 10, although the latter is fairly long, when basket 8 is in any of the vertically adjustable positi­ons mentioned above.
  • collector 13 has a substantially C-sha­ped longitudinal section and comprises a flat central portion 17 having valve portions 18 and 19 branching off from its lower and upper ends.
  • Central portion 17 is preferably housed in a corresponding recess formed on back wall 12 of the washing tank, while valve portions 18 and 19 extend within tank 6 on a downward slant and end in respective cylindrical portions 20, 21 of reduced section that constitute valve seats.
  • one of cylindrical portions 20, 21 is adapted to connect tightly in detachable fashion with the free end of connecting pipe 11.
  • this free end is provided with an elastic, preferably flared sleeve 22 adapted to permit the aforesaid detachable connection when basket 8 is inserted in its operating posi­tion within tank 6.
  • connecting pipe 11 is equipped with a rigid tapered pressure element 23 protruding outside sleeve 22.
  • This pressure element has, for example, a cruciform trans­verse section in such a way that it does not substantially obstruct the section of passage of pipe 11.
  • Valve portions 18, 19 house freely sliding ball obstructors 24, 25 which by gravity are normally adapted to be placed in correspondence with cylindrical portions 20, 21, which are therefore blocked when they are disconnected from connecting pipe 11.
  • obstructor 25 is situated due to gra­vity in the closed position of respective valve portion 19 while valve portion 18 is coupled with connecting pipe 11, so that obstructor 24 is moved by pres sure element 23 into the open position.
  • box collector 13 is shaped in correspondence with each valve portion 18, 19 as illustra­ted in Fig. 4.
  • Fig. 4 shows valve portion 18 shaped in its back and upper part with a lateral recess 26 adapted to con­tain ball obstructor 24 when the latter is moved into the open position by pressure element 23.
  • the positioning of ball 24 in the lateral recess is ensured by an inside projection 27 preferably shaped on an inclined plane and formed inte­grally on the back wall of valve seat 18.
  • projection 27 induces the ball to move laterally as well, being placed in lateral recess 26.
  • Upper valve portion 19 is identical to lower valve portion 18 illustrated in Fig. 4, the sole difference being that valve portion 18 is also provided laterally, as already mentioned, with a feed hole 28 coupled tightly with horizontal portion 16 of the water supply pipe and disposed upstream of obstruc­tor 24 when the latter is in the aforesaid closed position.
  • connecting pipe 11 When upper basket 8 is disposed in the lower position of Fig. 1, connecting pipe 11 is coupled with valve portion 18 of box collector 13, whose obstructor 24 is moved by pressure ele­ment 23 into the open position shown in Figs. 2 and 4.
  • upper arm 10 can be supplied with water via supply pipe 14, 16, open valve portion 18 of box collector 13 and connecting pipe 11.
  • Valve portion 19 is closed by gravity by corresponding ob­structor 25 and maintained in this position by the pressure of the water within collector 13 when the dishwasher is in operation.
  • arm 10 rotates on a plane passing below box collector 13, which thus does not interfere with arm 10 although the latter has the maximum length permitted by the dimensions of tank 6.
  • the hydraulic circuit supplying arm 10 advantageously has low head losses and low noise, since the path of the water conducted from portion 16 of the supply pipe axially to connecting pipe 11 undergoes only one deviation of approximately 90° in correspondence with box collector 13.
  • baskets 7, 8 and/or corresponding arms 9, 10 may be inclined instead of horizontal.
  • upper basket 8 may be adjustable in more than two different vertical positions; in this case collector 13 may be provided with a corresponding number of valve portions analogous to those 18 and 19 already described.
  • the hydraulic circuit of the inventive dishwasher may be fur­ther simplified in accordance with the variant shown in Figs. 5 and 6.
  • upper portion 19 of collector 13 does not house any obstructor 25 and may also extend horizontally as in Fig. 5.
  • lower valve portion 18 of collector 13 comprises in its interior a valve seat 29 against which ball obstructor 24 is adapted to hit, as it hits against cylindri­cal portion 20 in the opposite position, correspondingly clo­sing valve portion 18.
  • Valve seat 29 is expediently disposed at the back in valve portion 18 adjacent central portion 17, while feed hole 28 of collector 13 is formed in the same valve portion 18 between cylindrical portion 20 and valve seat 29, that is, in a zone situated between the two operating positions of ball 24. Departing from the solution illustrated in Figs. 2, 3 and 4, valve seat 18 is preferably cylindrical.
  • ball obstructor 24 is normally disposed by gra­vity in a position (shown by the broken lines in Figs. 5 and 6) closing cylindrical portion 20 of collector 13.
  • pressure element 23 (of expedient dimensions) moves ball 24 toward valve seat 29, against which it is pressed by hydrau­lic pressure when the machine is in operation; this position of obstructor 24 is shown by continuous lines in Figs. 5 and 6.
  • associated arm 10 may rotate on a plane passing between protruding valve portions 18 and 19 which, in this case as well, do not interfere with arm 10 although the latter has the maximum length permitted by the dimensions of tank 6.
EP90110645A 1989-06-06 1990-06-05 Geschirrspüler mit herausnehmbarem und vertikal versetzbarem Geschirrkorb Expired - Lifetime EP0401767B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90110645T ATE99521T1 (de) 1989-06-06 1990-06-05 Geschirrspueler mit herausnehmbarem und vertikal versetzbarem geschirrkorb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4573989 1989-06-06
IT8945739A IT1234696B (it) 1989-06-06 1989-06-06 Lavastoviglie con cesto estraibile regolabile in altezza.

Publications (2)

Publication Number Publication Date
EP0401767A1 true EP0401767A1 (de) 1990-12-12
EP0401767B1 EP0401767B1 (de) 1994-01-05

Family

ID=11257952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110645A Expired - Lifetime EP0401767B1 (de) 1989-06-06 1990-06-05 Geschirrspüler mit herausnehmbarem und vertikal versetzbarem Geschirrkorb

Country Status (5)

Country Link
EP (1) EP0401767B1 (de)
AT (1) ATE99521T1 (de)
DE (1) DE69005705T2 (de)
ES (1) ES2048896T3 (de)
IT (1) IT1234696B (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137227A1 (de) * 1991-11-13 1993-05-19 Licentia Gmbh Haushalt-geschirrspuelmaschine mit hoehenverstellbarem oberkorb
EP0786231A2 (de) * 1996-01-29 1997-07-30 SMEG S.p.A. Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedlichen Höhen positionierbaren Geschirrkorb
WO1998002082A1 (en) * 1996-07-17 1998-01-22 Arçelik, A.S. Detachable hydraulic coupling or flow distribution valve for use in the household dishwasher
EP0829221A2 (de) * 1996-09-11 1998-03-18 Merloni Elettrodomestici S.p.A. Geschirrspülmaschine mit verbessertem Hydraulikkreislauf
EP0796587A3 (de) * 1996-03-20 1998-03-25 Bosch-Siemens HausgerÀ¤te GmbH Geschirrspülmaschine
DE19705548A1 (de) * 1997-02-14 1998-08-20 Miele & Cie Geschirrspülmaschine mit einem höhenverstellbaren Geschirrkorb mit eigenem Sprüharm und einer Spülwasser-Zuleitung
EP0864291A1 (de) * 1997-02-25 1998-09-16 SMEG S.p.A. Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedliche Höhen positionierbaren Geschirrkorb
EP0872208A1 (de) * 1997-03-18 1998-10-21 SMEG S.p.A. Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedliche Höhen positionierbaren Geschirrkorb
EP0930044A1 (de) * 1998-01-13 1999-07-21 Electrolux Zanussi S.p.A. Geschirrspülmaschine mit Sprühvorrichtungen welche wahlweise mit Wasser versorgt werden
US6431188B1 (en) 2000-04-03 2002-08-13 Whirlpool Corporation Dishwasher spray arm feed system
EP1312297A2 (de) * 2001-11-14 2003-05-21 Electrolux Home Products Corporation N.V. Geschirrspülmaschine
US7055537B2 (en) 2002-06-27 2006-06-06 Maytag Corporation Bullet ended wash tube for dishwasher
WO2009008827A1 (en) * 2007-07-09 2009-01-15 Asko Cylinda Ab Dish washer provided with a coupling device for coupling between a spray liquid pipe and a spraying arm in a spraying system
WO2009083382A1 (en) * 2007-12-31 2009-07-09 Arcelik Anonim Sirketi A dishwasher
US8166983B2 (en) 2007-12-21 2012-05-01 Wolf Appliance, Inc. Fluid supply system for appliance
KR101213800B1 (ko) 2005-07-29 2012-12-18 엘지전자 주식회사 식기 세척기
EP3040010A1 (de) 2014-12-31 2016-07-06 Indesit Company S.p.A. Haushaltsgeschirrspülmaschine
EP3040011A1 (de) 2014-12-31 2016-07-06 Indesit Company S.p.A. Haushaltsgeschirrspülmaschine
EP3040012A1 (de) 2014-12-31 2016-07-06 Indesit Company S.p.A. Haushaltsgeschirrspülmaschine
US9480389B2 (en) 2013-06-24 2016-11-01 Wolf Appliance, Inc. Connector for a dishwasher middle spray arm
WO2020202230A1 (en) * 2019-04-02 2020-10-08 Aristarco Andrea Dishwasher
CN112672669A (zh) * 2018-09-14 2021-04-16 佛山市顺德区美的洗涤电器制造有限公司 具有用于升降架的对接装置的洗碗机
EP1282376B2 (de) † 2000-05-15 2021-12-29 Arçelik Anonim Sirketi Geschirrkorb mit höhenverstellbaren haltern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1514652A (en) * 1975-09-24 1978-06-21 Zanussi A Spa Industrie Dishwashers
DE2732540A1 (de) * 1977-07-19 1979-02-01 Bosch Siemens Hausgeraete Geschirrkorb mit einem sprueharm
DE2732665A1 (de) * 1977-07-20 1979-02-01 Bosch Siemens Hausgeraete Geschirrkorb mit einem sprueharm
DE3125853A1 (de) * 1980-03-11 1983-04-07 Aktiebolaget Electrolux, 10545 Stockholm Haushaltsgeschirrspuelmaschine
WO1983001892A1 (en) * 1981-11-24 1983-06-09 Berglund, Bo-Anders, Ragnar A connecting device
DE3732453A1 (de) * 1987-09-25 1989-04-20 Bosch Siemens Hausgeraete Sprueharmlagerung und wasserzufuehrung bei geschirrspuelmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1514652A (en) * 1975-09-24 1978-06-21 Zanussi A Spa Industrie Dishwashers
DE2732540A1 (de) * 1977-07-19 1979-02-01 Bosch Siemens Hausgeraete Geschirrkorb mit einem sprueharm
DE2732665A1 (de) * 1977-07-20 1979-02-01 Bosch Siemens Hausgeraete Geschirrkorb mit einem sprueharm
DE3125853A1 (de) * 1980-03-11 1983-04-07 Aktiebolaget Electrolux, 10545 Stockholm Haushaltsgeschirrspuelmaschine
WO1983001892A1 (en) * 1981-11-24 1983-06-09 Berglund, Bo-Anders, Ragnar A connecting device
DE3732453A1 (de) * 1987-09-25 1989-04-20 Bosch Siemens Hausgeraete Sprueharmlagerung und wasserzufuehrung bei geschirrspuelmaschinen

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137227C2 (de) * 1991-11-13 1999-12-16 Aeg Hausgeraete Gmbh Haushalt-Geschirrspülmaschine mit höhenverstellbarem Oberkorb
DE4137227A1 (de) * 1991-11-13 1993-05-19 Licentia Gmbh Haushalt-geschirrspuelmaschine mit hoehenverstellbarem oberkorb
EP0786231A2 (de) * 1996-01-29 1997-07-30 SMEG S.p.A. Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedlichen Höhen positionierbaren Geschirrkorb
EP0786231A3 (de) * 1996-01-29 1997-10-08 Smeg Spa Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedlichen Höhen positionierbaren Geschirrkorb
EP0796587A3 (de) * 1996-03-20 1998-03-25 Bosch-Siemens HausgerÀ¤te GmbH Geschirrspülmaschine
WO1998002082A1 (en) * 1996-07-17 1998-01-22 Arçelik, A.S. Detachable hydraulic coupling or flow distribution valve for use in the household dishwasher
EP0829221A2 (de) * 1996-09-11 1998-03-18 Merloni Elettrodomestici S.p.A. Geschirrspülmaschine mit verbessertem Hydraulikkreislauf
EP0829221A3 (de) * 1996-09-11 1998-08-12 Merloni Elettrodomestici S.p.A. Geschirrspülmaschine mit verbessertem Hydraulikkreislauf
DE19705548B4 (de) * 1997-02-14 2005-04-14 Miele & Cie. Kg Geschirrspülmaschine mit einem höhenverstellbaren Geschirrkorb mit eigenem Sprüharm und einer Spülwasser-Zuleitung
DE19705548A1 (de) * 1997-02-14 1998-08-20 Miele & Cie Geschirrspülmaschine mit einem höhenverstellbaren Geschirrkorb mit eigenem Sprüharm und einer Spülwasser-Zuleitung
EP0864291A1 (de) * 1997-02-25 1998-09-16 SMEG S.p.A. Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedliche Höhen positionierbaren Geschirrkorb
EP0872208A1 (de) * 1997-03-18 1998-10-21 SMEG S.p.A. Hydraulische Verbindungsvorrichtung für einen auf zwei unterschiedliche Höhen positionierbaren Geschirrkorb
EP0930044A1 (de) * 1998-01-13 1999-07-21 Electrolux Zanussi S.p.A. Geschirrspülmaschine mit Sprühvorrichtungen welche wahlweise mit Wasser versorgt werden
US6431188B1 (en) 2000-04-03 2002-08-13 Whirlpool Corporation Dishwasher spray arm feed system
EP1282376B2 (de) † 2000-05-15 2021-12-29 Arçelik Anonim Sirketi Geschirrkorb mit höhenverstellbaren haltern
EP1312297A2 (de) * 2001-11-14 2003-05-21 Electrolux Home Products Corporation N.V. Geschirrspülmaschine
EP1312297A3 (de) * 2001-11-14 2006-03-01 Electrolux Home Products Corporation N.V. Geschirrspülmaschine
US7055537B2 (en) 2002-06-27 2006-06-06 Maytag Corporation Bullet ended wash tube for dishwasher
KR101213800B1 (ko) 2005-07-29 2012-12-18 엘지전자 주식회사 식기 세척기
WO2009008827A1 (en) * 2007-07-09 2009-01-15 Asko Cylinda Ab Dish washer provided with a coupling device for coupling between a spray liquid pipe and a spraying arm in a spraying system
US8166983B2 (en) 2007-12-21 2012-05-01 Wolf Appliance, Inc. Fluid supply system for appliance
CN101917893B (zh) * 2007-12-31 2013-08-14 阿塞里克股份有限公司 洗碗机
WO2009083382A1 (en) * 2007-12-31 2009-07-09 Arcelik Anonim Sirketi A dishwasher
US9480389B2 (en) 2013-06-24 2016-11-01 Wolf Appliance, Inc. Connector for a dishwasher middle spray arm
EP3040010A1 (de) 2014-12-31 2016-07-06 Indesit Company S.p.A. Haushaltsgeschirrspülmaschine
EP3040011A1 (de) 2014-12-31 2016-07-06 Indesit Company S.p.A. Haushaltsgeschirrspülmaschine
EP3040012A1 (de) 2014-12-31 2016-07-06 Indesit Company S.p.A. Haushaltsgeschirrspülmaschine
CN112672669A (zh) * 2018-09-14 2021-04-16 佛山市顺德区美的洗涤电器制造有限公司 具有用于升降架的对接装置的洗碗机
EP3820348A4 (de) * 2018-09-14 2021-12-15 Foshan Shunde Midea Washing Appliances Manufacturing Co., Ltd. Geschirrspülmaschine mit andockvorrichtung für höhenverstellbares gestell
WO2020202230A1 (en) * 2019-04-02 2020-10-08 Aristarco Andrea Dishwasher

Also Published As

Publication number Publication date
DE69005705D1 (de) 1994-02-17
IT1234696B (it) 1992-05-26
ES2048896T3 (es) 1994-04-01
IT8945739A0 (it) 1989-06-06
EP0401767B1 (de) 1994-01-05
DE69005705T2 (de) 1994-04-28
ATE99521T1 (de) 1994-01-15

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