US3752322A - Rack system for a dishwashing machine - Google Patents

Rack system for a dishwashing machine Download PDF

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Publication number
US3752322A
US3752322A US00160869A US3752322DA US3752322A US 3752322 A US3752322 A US 3752322A US 00160869 A US00160869 A US 00160869A US 3752322D A US3752322D A US 3752322DA US 3752322 A US3752322 A US 3752322A
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US
United States
Prior art keywords
rack
pins
articles
support members
chamber
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
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US00160869A
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English (en)
Inventor
J Fiocca
E Grunewald
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.)
Whirlpool Corp
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Hobart Manfacturing Co
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Publication of US3752322A publication Critical patent/US3752322A/en
Assigned to HOBART CORPORATION reassignment HOBART CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOBART INTERNATIONAL INC., A CORP. OF OHIO
Assigned to KITCHENAID, INC. reassignment KITCHENAID, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HOBART CORPORATION
Assigned to TRABOH CORPORATION reassignment TRABOH CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KITCHENAID, INC.
Assigned to EMERSON CONTRACT DIVISION, INC. reassignment EMERSON CONTRACT DIVISION, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TRABOH CORPORATION
Assigned to WHIRLPOOL CORPORATION reassignment WHIRLPOOL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EMERSON CONTRACT DIVISION, INC.
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
    • A47L15/503—Racks ; Baskets with foldable parts
    • 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
    • A47L15/505—Inserts, e.g. for holding baby bottles, stemware or cups

Definitions

  • a dish supporting rack includes a series of parallel rows of spaced pins, some of which are rotatably supported for movement between upright dish supporting positions and collapsed positions adjacent the bottom of the rack.
  • the rack also includes means for positively retaining each outer row of rotatable pins at a plurality of intermediate inclined positions where the pins are effective to press against lightweight articles and to hold the articles in fixed relation within the rack while cleaning liquid is being recirculated over and into the articles.
  • a dishwashing machine rack as disclosed in US. Geiger et al Pat. No. 3,269,548 which issued to the assignee of the present invention, a plurality of rows of parallel spaced pins, including at least one retractable row of pins, support the tableware and food preparation articles while successive charges of detergent solution and fresh water are recirculated over the articles during the machine cycle.
  • the articles may include lightweight plastic dishes, cups or other lightweight fragile articles such as fine crystal glasses, which may be bounced or shifted around within the rack by the impact of the recirculating solution or water, with resultant chipping or cracking.
  • plastic cup-like articles flip over to rightside up positions and then retain water which increases the weight of the articles and prevents them from inverting again to dump the water.
  • the trapped water within the articles prevents the inside of the articles from being properly cleaned.
  • the present invention is directed to an improved dish-washing machine rack system such as shown in the above Geiger et al patent, and which particularly provides for positively retaining lightweight articles such as molded plastic cups and fine crystal glassware or stemware and for positively retaining the articles in preselected positions during the washing cycle.
  • the rack of the invention includes generally parallel spaced longitudinal support members extending from front to back of the dishwashing machine chamber and which are connected to generally parallel spaced lateral support members extending across the chamber to form an open mesh rack bottom.
  • the end portions of the support members are formed upwardly and are connected by additional support members to form a generally rectangular open mesh frame which extends around the bottom of the rack.
  • the rack further includes a series of laterally spaced rows of longitudinally spaced pins which define spaces or cavities for receiving soiled dishes or other articles.
  • the outer two rows of pins on each side of the rack are rotatably supported for selective movement between generally upright positions and collapsed positions adjacent the bottom of the rack in a manner as shown in the above Geiger et al patent.
  • the rack system further includes means for positioning the outer row of pins on each side of the rack at a plurality of intermediate positions where the pins are effective to press against the lightweight articles and thereby hold the articles in fixed space relation on the bottom of the rack.
  • FIG. 1 is a side elevational view of a front loading type dishwashing machine with a portion broken away and incorporating an upper rack constructed in accordance with the invention
  • FIG. 2 is a fragmentary perspective view of the upper rack shown in FIG. 1 and illustrating an outer row of support pins in fixed position for retaining fine crystal glassware in prearranged spaced relation;
  • FIG. 3 is a fragmentary end view of the upper rack shown in FIG. 2;
  • FIG. 4 is a fragmentary top view of the upper rack portion shown in FIGS. 2 and 3.
  • a front loading dishwashing machine includes a tank 10 defining a cleaning chamber 12 having a front opening.
  • a door 14 is pivotally mounted on the tank 10 at the bottom of the front opening and is movable on an axis 15 from a vertical closed position to a horizontal open position as illustrated by the dotted lines in FIG. 1.
  • a lower rack 16 is supported within the chamber 12 by suitable tracks (not shown) and is adapted to be rolled out onto the door 14 in its open position for loading and unloading the rack.
  • An upper rack 20 is supported within the upper portion of the chamber 12 preferably by a pair of parallel telescopic tracks 22 as shown in US. Pat. No. 3,472,573 which also issued to the assignee of the present invention.
  • the upper rack 20 is movable between a retracted position within the chamber 12 as shown by the full line in FIG. 1 and a fully extended position as shown by the dotted lines, overlying the door 14 in its open position.
  • the upper rack 20 includes a plurality of longitudinally spaced laterally extending wire support members 24 which are secured to a plurality of laterally spaced longitudinally extending wire support members 26 to form an open mesh bottom.
  • the center portions of the laterally extending wire members 24 (FIG. 3) are formed upwardly to provide for positioning a large diameter serving plate P (FIG. 1) or other large article within the center portion of the lower rack 16.
  • the end portions of the laterally extending wire support members 24 are formed upwardly and are rigidly connected by a series of side wire support members 28.
  • the end portions of the longitudinally extending wire support members 26 are also formed upwardly and are rigidly connected by a top wire support member 31 and an inclined wire support member 32.
  • the corresponding end portions of the wire members 31 and 32 are rigidly secured to the adjacent laterally extending wire support member 24.
  • each side portion of the upper rack 20 includes a set of collapsible wire support members 34 and 36 which are constructed somewhat similar to the collapsible support members shown in the above US. Pat. No. 3,269,548.
  • Each of the support members 34 and 36 includes a longitudinally extending wire member 37 which supports a series of longitudinally spaced wire pins 38 each having a slight Z-shaped or offset configuration.
  • the support member 36 includes a pair of spaced longitudinal wire members 39 which rigidly connect the corresponding pins 38 above the wire member 37 to provide reinforcement of the pins 38.
  • the two centermost longitudinally extending support wire members 26 each support a series or row of longitudinally spaced upright pins 40 having substantially the same spacing as the pins 38 on the support wires 37.
  • Each of the longitudinally extending support members 34 and 36 is rotatably supported by a set of end brackets or fittings 41 (FIG. 3) which are molded from a thermoplastic material and are snap fitted on the end wire members 24 and 26.
  • the forward end portion of each rotatable wire member 37 is bent upwardly to form a lever 43 which is located adjacent the forward wall of the rack 20.
  • a curved or arcuate shaped retaining member 45 is positioned on each side portion of the front wall of the upper rack 20 and is secured by clips 46 to a vertical wire support member 47 which is rigidly attached to the front wire support members 31 and 32.
  • the retaining member 45 is molded from a thermoplastic material and also includes integral clips 48 and 49 which snap fit onto the front laterally extending wire support member 24 and the upwardly projecting forward end portion of the adjacent longitudinally extending wire support member 26.
  • Each retaining member 45 includes a finger portion 51 which has a pair of parallel spaced and inwardly projecting ribs 52 defining a nest or socket for the upwardly projecting end portion or lever 43 of the rotatable support member 34.
  • the retaining member 45 also includes a plurality of angularly arranged sets of parallel spaced ribs. 54 which define a series of nests or sockets for receiving the upwardly projecting forward end portion or lever 43 of the rotatable support member 36. That is, the series of angularly arranged sockets defined by the ribs 54, provide for positioning the support member 36 and including upwardly projecting pins 38, at a plurality of different angular positions intermediate the upright position shown in FIG. 3 and a collapsed position where the pins 38 lie on the bottom wire members 26 of the rack 20. It is to be understood that all of the wire support members forming the rack 20, are coated in a conventional manner with a resilient rubber-like protective coating, commonly referred to as Plastisol. I
  • a pair of lightweight fine crystal glasses G are positioned within the upper rack 20 so that the glasses rest against the side wire members 28.
  • the support member 36 and the corresponding upright pins 38 are rotated or pivoted downwardly until the pins 38 firmly engage the outer surface of the glasses G.
  • the support member 36 is positioned simply by springing the corresponding lever 43 from one of the sockets defined between a set of ribs 54, rotating the support member 36 until the pins 38 engage the glasses and then releasing the lever 43 so that it snaps back into an adjacent socket of the retaining member 45.
  • a slight torque is introduced within the wire member 37 after the corresponding pins contact the glasses G, by pressing downwardly on the lever 43 before the lever is released into the adjacent sockets within the retaining member 45.
  • a firm pressure is exerted on the glasses G by the corresponding pins 38 so that the glasses are positively retained in a fixed spaced relation during the entire wash cycle of the dishwashing machine.
  • the lever 43 of the support member 34 When it is desired to move the support member 34 and the corresponding pins 38 from their upright positions shown in FIG. 3, to their collapsed positions adjacent the bottom members 26 of the rack 20, the lever 43 of the support member 34, is pulled from the socket defined by the ribs 52 and is rotated counterclockwise (FIG. 3) until the pins 38 contact the wire members 26.
  • the support member 36 and the corresponding pins 38 may also be collapsed in the same manner when it is desired to place a large bowl or other large article within the upper rack as illustrated in FIG. 2 of the above US. Pat. No. 3,269,548.
  • the retaining member 45 cooperates with the lever 43 of the support member 36 to provide for conveniently and positively retaining lightweight articles in preselected fixed spaced relation within the upper rack of the dishwashing machine.
  • articles such as light weight fine crystal glasses or stemware and lightweight plastic cups, may be placed within the outer side portions of the upper rack 20 and retained in fixed positions or relation simply by pivoting the outer row of pins 38 downwardly into pressure engagement with the articles and then holding the pressure engagement by snapping the lever 43 of the support member 36 into one of the sockets within the retaining member 45.
  • this holddown feature is highly desirable in that it prevents lightweight plastic cups from tumbling and collecting water and also prevents fine crystal glasses from bouncing against each other or other articles within the rack during the washing and rinsing periods. It is also to be understood that while the article holddown structure has been described herein in connection with the upper rack of an automatic dishwashing machine, the structure may also be used within a lower rack of the machine.
  • a rack for a dishwashing machine having a tank defining a chamber in which cleansing liquid is propelled forcefully against articles supported in the rack, said rack having a generally open construction formed by a plurality of spaced longitudinal support members extending from front to back of said chamber and connected to a series of spaced lateral support members extending across said chamber, a plurality of upright pins secured to at least several of said support members for receiving soiled articles to be cleaned, and means for rotatably supporting at least one of said support members having a row of said pins thereon to provide for moving said pins toward and away from the bottom of the rack; the improvement comprising means for retaining said rotatably supported pins in at least one intermediate position extending at an angle to said bottom and partially surrounding and holding articles against the bottom of said rack to retain the articles in fixed relation while cleansing liquid is propelled against such articles.
  • said retaining means comprise a member mounted on said rack and having means defining a plurality of angularly related detent sockets, and said rotatable support member includes an arm adapted to be selectively located within one of said sockets.
  • said retaining member comprises a molded plastic body having a series of integral ribs thereon forming said detent sockets.
  • a rack as defined in claim 1 including a longitudinally extending support member rigidly connecting said pins on said rotatable support member to effect reinforcement of said pins for firmly engaging the articles.
  • a rack for a dishwashing machine having a tank defining a chamber in which cleansing liquid is recirculated, and including an open mesh bottom formed by a plurality of generally parallel spaced longitudinal support members extending from front to back of said chamber and connected to a series of generally parallel spaced lateral support members extending across said chamber, a series of generally parallel spaced upright pins secured to a plurality of said support members for receiving soiled articles to be cleaned, and means for rotatably supporting at least one of said parallel support members having a row of said pins thereon to provide for moving said pins between a collapsed position adjacent the bottom of the rack and said generally upright position, the improvement comprising means for retaining said rotatably supported pins in a plurality of angularly related intermediate positions between said upright and collapsed positions for firmly engaging lightweight articles resting on the bottom of said rack to hold the articles in fixed relation while the cleansing liquid is being recirculated.

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  • Washing And Drying Of Tableware (AREA)
US00160869A 1971-07-08 1971-07-08 Rack system for a dishwashing machine Expired - Lifetime US3752322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16086971A 1971-07-08 1971-07-08

Publications (1)

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US3752322A true US3752322A (en) 1973-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00160869A Expired - Lifetime US3752322A (en) 1971-07-08 1971-07-08 Rack system for a dishwashing machine

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US (1) US3752322A (de)
AU (1) AU465796B2 (de)
CA (1) CA949430A (de)
DE (1) DE2232483C3 (de)
FR (1) FR2144682B1 (de)
GB (1) GB1391680A (de)

Cited By (73)

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US4238035A (en) * 1978-09-15 1980-12-09 Kassanchuk Jerry N Baby bottle rack
US4917248A (en) * 1989-01-12 1990-04-17 White Consolidated Industries, Inc. Dishwasher rack with movable fence
US5158185A (en) * 1991-09-27 1992-10-27 Maytag Corporation Dividers for dishwasher racking system
US5205419A (en) * 1991-09-27 1993-04-27 Maytag Corporation Dishwasher racking system
US5344029A (en) * 1994-03-25 1994-09-06 Ann T. Oghia Dishwasher holddown rack
US5351837A (en) * 1993-09-07 1994-10-04 General Electric Company Dishwasher rack assembly with fold down combs
US5480035A (en) * 1994-02-07 1996-01-02 General Electric Company Dishwasher rack with adjustable shelf
US5497890A (en) * 1994-01-07 1996-03-12 White Consolidated Industries, Inc. Plasticware retainer for use in an automatic dishwasher
US5518126A (en) * 1994-07-29 1996-05-21 White Consolidated Industries, Inc. Plasticware retainer for use in an automatic dishwasher
US5567029A (en) * 1994-12-22 1996-10-22 Maytag Corporation Adjustable retainer assembly for a refrigerator door shelf
US5601195A (en) * 1994-04-01 1997-02-11 Electrolux Zanussi Elettrodomestici S.P.A. Basket with a movable divider for a dishwasher
USD383880S (en) * 1996-02-29 1997-09-16 White Consolidated Industries, Inc. Dishwasher rack
USD383879S (en) * 1996-02-28 1997-09-16 White Consolidated Industries, Inc. Dishwasher rack
WO1998046113A1 (en) * 1997-04-03 1998-10-22 Gs Development Ab Rack for dishes in a dishwasher
US6394285B1 (en) 2000-02-29 2002-05-28 Michelle Smith Arthurs Dishwasher accessory for securing and supporting stemware
US6571965B1 (en) 2000-04-12 2003-06-03 Whirlpool Corporation Dishwasher rack with pivotable fences
US6786339B2 (en) 1999-12-16 2004-09-07 Bsh Bosch Und Siemens Hausgerate Gmbh Dish rack for dishwasher
US6848585B2 (en) 2001-11-09 2005-02-01 Maytag Corporation Rack for reduced height washing compartment
US20050109378A1 (en) * 2003-11-20 2005-05-26 Landsiedel Jay C. Dishwasher and adjustable rack
US6907998B2 (en) * 1998-12-10 2005-06-21 Bsh Bosch Und Siemens Hausgerate Gmbh Dish rack for accommodating dishes, and household dishwasher
US20050236344A1 (en) * 2004-04-22 2005-10-27 Frank Yang Dish rack with swinging arm
US20050242046A1 (en) * 2004-05-03 2005-11-03 Lee Kang H Auxiliary rack and automatic dishwasher using the same
US20050268945A1 (en) * 2004-06-02 2005-12-08 Maytag Corporation Utility shelf for a dishwasher dish rack
WO2006015932A1 (de) 2004-07-23 2006-02-16 BSH Bosch und Siemens Hausgeräte GmbH Geschirrkorb zur variablen aufnahme von geschirrteilen
US20060108298A1 (en) * 2004-11-25 2006-05-25 Lg Electronics Inc. Dishwasher rack
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US20070119801A1 (en) * 2005-11-28 2007-05-31 Miele & Cie. Kg Device for holding cutlery
US20070199584A1 (en) * 2004-05-03 2007-08-30 Stephan Koch Basket For A Dishwashing Machine Having Various Receptacles And/Or Holders
US20070226928A1 (en) * 2004-05-06 2007-10-04 Cem Bastuji Dishwasher
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US20100078048A1 (en) * 2006-11-23 2010-04-01 Bsh Bosch Und Siemens Haugeräte Gmbh Cutlery basket for a dishwasher and dishwasher
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US7789973B1 (en) * 2007-02-21 2010-09-07 Barton Frances B Utility washer
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US20110233158A1 (en) * 2008-11-26 2011-09-29 Gerhard Haider Dishwasher basket with a cup support
US20120056519A1 (en) * 2010-09-02 2012-03-08 Woo Sangwoo Dishwasher
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USD796750S1 (en) 2013-08-01 2017-09-05 Electrolux Appliances Aktiebolag Dishwasher rack
US9949613B2 (en) 2011-05-25 2018-04-24 Whirlpool Corporation Dishwasher with slidable tine assembly
US10052012B2 (en) 2014-09-01 2018-08-21 Electrolux Appliances Aktiebolag Holding assembly
US10165927B2 (en) 2014-09-01 2019-01-01 Electrolux Appliances Aktiebolag Holding assembly
US20190069756A1 (en) * 2017-09-07 2019-03-07 Bsh Home Appliances Corporation Specialty dishwasher for glasses and lower rack for same
US10285566B2 (en) * 2015-10-09 2019-05-14 BSH Hausgeräte GmbH Washing item receptacle for a flat washing item in a dishwasher
US10349804B2 (en) * 2014-02-28 2019-07-16 Whirlpool Corporation Glasses rack for dishwasher
US10463226B2 (en) 2014-09-01 2019-11-05 Electrolux Appliances Aktiebolag Support assembly
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Cited By (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238035A (en) * 1978-09-15 1980-12-09 Kassanchuk Jerry N Baby bottle rack
US4917248A (en) * 1989-01-12 1990-04-17 White Consolidated Industries, Inc. Dishwasher rack with movable fence
US5158185A (en) * 1991-09-27 1992-10-27 Maytag Corporation Dividers for dishwasher racking system
US5205419A (en) * 1991-09-27 1993-04-27 Maytag Corporation Dishwasher racking system
US5351837A (en) * 1993-09-07 1994-10-04 General Electric Company Dishwasher rack assembly with fold down combs
US5497890A (en) * 1994-01-07 1996-03-12 White Consolidated Industries, Inc. Plasticware retainer for use in an automatic dishwasher
US5480035A (en) * 1994-02-07 1996-01-02 General Electric Company Dishwasher rack with adjustable shelf
US5344029A (en) * 1994-03-25 1994-09-06 Ann T. Oghia Dishwasher holddown rack
US5601195A (en) * 1994-04-01 1997-02-11 Electrolux Zanussi Elettrodomestici S.P.A. Basket with a movable divider for a dishwasher
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Publication number Publication date
FR2144682A1 (de) 1973-02-16
DE2232483C3 (de) 1981-07-09
CA949430A (en) 1974-06-18
AU4152372A (en) 1973-11-01
GB1391680A (en) 1975-04-23
FR2144682B1 (de) 1976-10-29
AU465796B2 (en) 1975-10-09
DE2232483B2 (de) 1980-09-25
DE2232483A1 (de) 1973-01-18

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