EP4154794A1 - Support d'étagère pour un lave-vaisselle de type capot - Google Patents

Support d'étagère pour un lave-vaisselle de type capot Download PDF

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Publication number
EP4154794A1
EP4154794A1 EP22184815.3A EP22184815A EP4154794A1 EP 4154794 A1 EP4154794 A1 EP 4154794A1 EP 22184815 A EP22184815 A EP 22184815A EP 4154794 A1 EP4154794 A1 EP 4154794A1
Authority
EP
European Patent Office
Prior art keywords
rack
support frame
rack support
frame according
side faces
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.)
Pending
Application number
EP22184815.3A
Other languages
German (de)
English (en)
Inventor
Marco Pieri
Riccardo ORLANDI
Riccardo DONATI
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP4154794A1 publication Critical patent/EP4154794A1/fr
Pending 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
    • A47L15/501—Baskets, e.g. for conveyor-type, in-sink type or hood-type machines
    • 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
    • A47L15/0076—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals
    • A47L15/0081—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals with vertical sliding closing doors, e.g. hood-type dishwashers

Definitions

  • the present invention relates to a rack support frame, more specifically to a rack support frame for a hood-type dishwasher with improved performance characteristics.
  • rack holders for hood-type dishwashers are manufactured from metal, such as, for example stainless steel.
  • metal such as, for example stainless steel.
  • these rack supports are expensive in terms of materials and manufacturing time, as a plurality of components are assembled and welded together. Further, the welds used to assemble the components of the rack are difficult to clean, causing a high risk for the accumulation of dirt.
  • rack supports formed of metal are heavy, meaning that the handling and/or removal of the rack from the dishwasher can be difficult.
  • Other risk factors caused by the metal components are the potential of sharp cutting edges. Thus, the combination of potentially excessive weight, sharp edges and the increased need to handle the rack for cleaning purposes can be a hazardous for users.
  • a rack support frame for a hood-type dishwasher comprising:
  • Hood-type dishwashers require a rack or basket filled with dishes to be slid onto and off of a supporting rack.
  • dish racks are generally formed of a polymer to keep the cost and weight of the racks low.
  • the rack support is required to have increased structural strength, as well as, being harder wearing than the dish rack, because it supports the weight of the full (i.e. filled with heavy dishes) dish racks through every wash cycle.
  • Forming the rack support frame of a polymer or polymer composite has several advantages. Firstly, forming the rack support frame of the same material as the rack reduces wear on the racks. Secondly, polymer or polymer composite materials are generally more light-weight than steel racks, thus, a lighter rack can be more easily removed and cleaned.
  • the rack support frame can be manufactured as a unitary piece, removing the need for welding multiple components and thus significantly reducing potential dirt-collecting spots on the frame.
  • polymers are generally cheaper in terms of manufacture and material costs compared to metal, such as, stainless steel.
  • said leg members are formed from metal.
  • metal leg members allows for a simplified assembly with the polymer frame, as the metal legs can be simple moulded into the corner section of the frame support during manufacture of the polymer or polymer composite frame support. Also, providing metal leg members can increase the lifespan of the rack support frame.
  • said rack support frame may further comprise an outer and an inner side, opposing said outer side face, each attached to and protruding perpendicularly away from a top face, so as to form a U-shaped cross-sectional profile. This will increase the overall structural strength of the support frame.
  • said rack support frame may further comprise a plurality of ribs attached between said outer and inner side faces and said top face.
  • Including a plurality of ribs attaching the outer and inner side faces and the top face increases the strength and rigidity of the rack support frame without substantially affecting the overall weight and the surface area of the top face.
  • said rack support frame may further comprise at least one strut connecting at least one corner between two inner side faces.
  • This provides the advantage of increased structural strength and rigidity of the rack support frame without substantially affecting the overall weight and the surface area of the top face.
  • said rack support frame may further comprise at least one aperture to accommodate a fixing means on at least one of said side faces.
  • said rack support frame may further comprise a substantially square bottom face, said bottom face being releasably attachable to said outer and inner side faces such that when attached, said bottom face opposes said flat top face.
  • This provides the advantage of closing the inner volume defined by the U-shaped profile of the support frame, to avoid ingress of debris during the wash cycle. The bottom face may then be removed for cleaning purposes.
  • said leg members may be co-moulded with said rack support.
  • said rack support frame may further comprise at least one releasably mountable side support border for guiding and positioning a dish rack, said at least one side support border being formed of a plastic material.
  • the rack support frame may further comprise at least one triangular mounting formation adapted to couplingly engage with a respective one of at least one triangular mounting structure of said at least one side support border.
  • the described example embodiment relates to a rack support frame for use with a hood type dishwasher.
  • the rack support frame comprises a substantially square support which is formed of a polymer.
  • plastic polymer, composite and polymer composite are used interchangeably within this specification.
  • the terms 'connected', 'attached', 'coupled', 'mounted' are intended to include direct connections between two members without any other members interposed therebetween, as well as, indirect connections between members in which one or more other members are interposed therebetween.
  • the terminology includes the words specifically mentioned above, derivatives thereof, and words of similar import.
  • the rack support frame 100 is for a hood-type dishwasher, but the skilled person will appreciate that the rack support frame can be used in a variety of different situations.
  • the rack support frame 100 includes a substantially square support structure 101.
  • the substantially square support 101 is formed of a polymer material, such as a plastic, or a polymer composite.
  • the polymer may be a mouldable plastic.
  • the substantially square support 101 may be formed as a single piece, for example, having a U-shaped cross-sectional profile, having no joints or welds or any other connections or couplings.
  • Legs 103 e.g. metal are attached at the corners of the square support 101.
  • the legs 103 may be made from wires that are shaped into leg structures suitable to be attachingly moulded into the square support 101 during a manufacturing process.
  • the wire material may be any one of a suitable metal, a polymer or plastic material and a composite material (e.g. polymer composite).
  • a suitable metal e.g
  • the substantially square support 101 defines a flat top surface 110 which can accommodate a dish rack 107.
  • the square support 101 may have outer 112 and inner 114 opposing side faces (so as to form the U-shaped profile).
  • the side faces 112, 114 are attached to and protrude perpendicularly from the substantially flat top face 110.
  • the bottom opening 116 of the square support 101 may be closed by a releasably attachable square bottom surface 104 that can be attached with screws or any other suitable fastener means (e.g. clips).
  • the bottom surface 104 can be removed such that the hollow interior of the square support 101 can be cleaned.
  • the rack support frame 100 will be flipped upside down during cleaning, such that water may flow out of the screw holes.
  • the bottom surface 104 may be ultrasonically welded to the opposing side faces 112, 114.
  • the square support 101 may be formed as a single generally tubular structure, forming for example a square cross sectional profile.
  • the rack support 101 may be provided with holes 106 for attachment means, such as screws and/ or nuts and bolts. These attachment means may be used to attach various accessories to the square rack support 101.
  • One such attachable accessory may be a side support 105 or side support border.
  • the one or more side support 105 can be attached to one or more sides of the square rack support 101.
  • Hood type dishwashers may be placed in a number of different situations.
  • a dish rack 107 may be inserted under the hood from one side and then removed from the other side.
  • two side support borders 105 may be attached such that a dish rack 107 can be slid straight over the dishwasher without being lifted.
  • a plurality of side support borders 105 may be attached on three sides such that a dish rack can be moved into position and then removed from the same direction it was entered.
  • the side support borders 105 may be constructed such that a dish rack 107 is aligned with the cleaning components of the hood-type dishwasher.
  • FIG. 2A the same rack support frame 100 as in the preceding Figure 1 is shown, except, the side borders 105 are configured to be slid into position for a hood type dishwasher configured to be placed into, for example, the corner of a kitchen.
  • the substantially square bottom face 104 of the rack support 101 may comprise one or more screw hole structures 118 for fixing means, such that it can be attached using a screw and/or nut and bolt.
  • the rack support 101 includes a plurality of structural support ribs 108 which serve to strengthen the rack support 101, increasing the longevity of the structure. In the configuration shown the ribs 108 are attached to opposing side faces (inner and outer) 112, 114 and the top face 110.
  • a rack support frame 100 is shown.
  • struts 102 are provided to the inner side faces 112, such that each strut 102 is attached to a corner section of the rack support 101, i.e. connecting two inner side faces 112.
  • the struts 102 may increase the rigidity of the rack support 101 such that it does not deform under strain, especially under the high temperature conditions known to be present in a hood-type dishwasher during use.
  • a rack support frame 100 is shown.
  • the side support borders 105 of the rack support 101 are in a different configuration, i.e. on opposing sides of the rack support 101.
  • a rack support frame 100 is shown with a dish rack 107 located on the substantially flat top face 110 of the rack support 101.
  • the flat top face 110 is configured in terms of shape and size to accommodate a dish rack 107.
  • the rack support 101 may be adapted to accommodate a variety of dish racks of different configurations.
  • the side support borders 105 may be configured such that one degree of freedom (DOF) of movement is removed, meaning that the dish rack 107 cannot be slid off the rack support 101 in an undesired direction.
  • DOF degree of freedom
  • the side support borders 105 may also help to locate the dish rack 107 within the hood-type dishwasher.
  • the support face is made up of a wire frame 201, material used for forming the wire frame 201 may include any one or any combination of a stainless steel, a polymer or a polymer composite material.
  • the wire frame 201 provides a support for a dish rack 107.
  • Side support borders 205 may be attachable to the wire frame 201 using fixing means, such as a nut, bolt and washer 210.
  • the rack support frame 200 may further comprise triangular formations 212, wherein the side support borders 205 may comprise complimentary triangular mounting structures (not shown) adapted to couplingly engage with the triangular formations of the rack support frame 200 (as well as, an equivalent triangular mounting structure provided with rack support frame 100).
EP22184815.3A 2021-09-22 2022-07-13 Support d'étagère pour un lave-vaisselle de type capot Pending EP4154794A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21198369 2021-09-22

Publications (1)

Publication Number Publication Date
EP4154794A1 true EP4154794A1 (fr) 2023-03-29

Family

ID=77910617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22184815.3A Pending EP4154794A1 (fr) 2021-09-22 2022-07-13 Support d'étagère pour un lave-vaisselle de type capot

Country Status (1)

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EP (1) EP4154794A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568848A (en) * 1968-04-01 1971-03-09 Guy Tzifkansky Dish tray
US4621739A (en) * 1983-12-12 1986-11-11 Heymann Mark S Tray for glass racks
WO2013109799A1 (fr) * 2012-01-20 2013-07-25 Premark Feg L.L.C. Lave-vaisselle avec dispositif de porteur de panier mobile
EP2252194B1 (fr) * 2008-01-29 2013-10-02 Simplehuman LLC Panier à vaisselle
KR20140069533A (ko) * 2012-11-29 2014-06-10 린나이코리아 주식회사 식기세척기의 랙가이드 장착구조
US20150374202A1 (en) * 2010-07-24 2015-12-31 Alexandra Laray Abraham Basin for use with commercial dish and glassware racks
US20180070792A1 (en) * 2014-03-13 2018-03-15 Illinois Tool Works Inc. Dishwasher in the form of a commercial utensil washer or dishwasher which is designed as a batch dishwasher

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568848A (en) * 1968-04-01 1971-03-09 Guy Tzifkansky Dish tray
US4621739A (en) * 1983-12-12 1986-11-11 Heymann Mark S Tray for glass racks
EP2252194B1 (fr) * 2008-01-29 2013-10-02 Simplehuman LLC Panier à vaisselle
US20150374202A1 (en) * 2010-07-24 2015-12-31 Alexandra Laray Abraham Basin for use with commercial dish and glassware racks
WO2013109799A1 (fr) * 2012-01-20 2013-07-25 Premark Feg L.L.C. Lave-vaisselle avec dispositif de porteur de panier mobile
KR20140069533A (ko) * 2012-11-29 2014-06-10 린나이코리아 주식회사 식기세척기의 랙가이드 장착구조
US20180070792A1 (en) * 2014-03-13 2018-03-15 Illinois Tool Works Inc. Dishwasher in the form of a commercial utensil washer or dishwasher which is designed as a batch dishwasher

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