EP1555497A1 - Kühlgerätetürkonstruktion - Google Patents

Kühlgerätetürkonstruktion Download PDF

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Publication number
EP1555497A1
EP1555497A1 EP04100127A EP04100127A EP1555497A1 EP 1555497 A1 EP1555497 A1 EP 1555497A1 EP 04100127 A EP04100127 A EP 04100127A EP 04100127 A EP04100127 A EP 04100127A EP 1555497 A1 EP1555497 A1 EP 1555497A1
Authority
EP
European Patent Office
Prior art keywords
door
rims
panels
edges
inner liner
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.)
Withdrawn
Application number
EP04100127A
Other languages
English (en)
French (fr)
Inventor
Alexandre Barros Neves
Angelo Santarossa
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 Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP04100127A priority Critical patent/EP1555497A1/de
Priority to BRPI0418406-8A priority patent/BRPI0418406A/pt
Priority to PCT/EP2004/053681 priority patent/WO2005068922A1/en
Publication of EP1555497A1 publication Critical patent/EP1555497A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers

Definitions

  • the present invention refers to a new method for producing a door for a refrigerating apparatus, in particular a household refrigerators.
  • Refrigerators, freezers and similar apparatuses are typically provided with insulated doors. These doors are usually constructed of an outer panel and an inner liner with a foam insulation between them. Different types of materials are used for the door panels, so as different methods are used to assemble them. The most typical construction involves a metal fabricated exterior door shell that is formed with a rear flanges on the back side to support and possibly attach a thermoformed plastic interior panel.
  • the typical insulation material is a polyurethane foam which is introduced into the door by means of three basic approaches: laminated in the exterior shell up to the rear flanges, injected into a small opening of a preassembled door, or poured into one half of the door assembly and foamed in place when the outer door half is clamped down before the foam begins to expand and cure.
  • Examples of refrigeration door construction are disclosed in US 5,520,453, US 5,588,731, and US 5,909,937.
  • a main problem in the construction of refrigeration doors is the sealing of the space between the external shell and the inner liner which is to be filled up by the insulation material.
  • metal or plastic rims engage the edges of the panels, both at top and at bottom thereof, respectively.
  • Said rims are suitably shaped, e.g. C-shaped, to cover and enclose the panel edges, as they are applied to the panels from outside of the same.
  • This solution involves some drawbacks. Firstly, rims should be firmly attached to the panels to avoid a possible detachment under the foaming pressure which is produced during the filling up of the insulation material. Moreover, the free ends of the rims project from the surface of the door panels, so causing problems to the users for the cleaning of the refrigerators. Another problem may arise when non-coated metal panels are used for the construction of the refrigerating door. Indeed, protruding ribs on surfaces to be painted create an additional problem both for the technical production and from the aesthetic point of view of the finished apparatus.
  • a new refrigerator or freezer door construction which comprises an outer panel and an inner liner so as a top rim and a bottom rim, said components being assembled in an innovative way to close the internal space of the door wherein a foam insulation must be produced.
  • Another object of the present invention is to provide a new refrigerator or freezer door having an external surface fully smooth in order to improve the door fmishing both from the technical and aesthetic point of view.
  • Yet another object of the present invention is to provide a new refrigerator or freezer door which facilitates cleaning operation and makes it more safe too.
  • Figure 1a represents a partial sectional view, on enlarged scale, of a refrigerator door according to the prior art
  • FIG. 1a shows a particular of a known refrigeration or freezer door in a schematic partial section.
  • the door comprises an outer panel 10 and an inner liner 11, the top edges of which are connected and closed by means of a top sealing rim 12.
  • a rim similar to the rim 12 is also provided to connect the bottom edges of the panels, so as the space delimited between said panels is closed before introducing in it the foaming polyurethane which forms the door insulation.
  • Rims 12 are generally so shaped that their ends 13 enclose the corresponding edges of the door panels. As a consequence, the external rim ends 13 are protruding from the surface of the outer panel 10 of the door with the drawbacks already mentioned.
  • Figure 1b shows, according to the present invention, a schematic partial section similar to that of Figure 1a of a refrigeration or freezer door. Numeric references are the same for similar pieces in the two figures.
  • the outer panel 10 shows its edge 14 which is bent toward the inside thereof and is engaged into a corresponding groove 15 of the rim 12. It is apparent that the rim 12 is substantially contained within the door thickness and no projections result on the external surface of the door itself. This feature ensures also a better tightness during the insulation foaming inside the space between the outer panel and the inner liner of the door, as the rim 12 abuts against the edge 14 of the outer panel 10 and does not need special sealing means.
  • Figures 2-4 represent, in a schematic way, respective subsequent steps for the construction of the door according to the present invention.
  • the operation starts from an outer panel 10 which comprises a front surface 16 and lateral extensions 17. Upper and lower edges of the panel are bent toward the inside of the door body.
  • the rim 12 is introduced under the bent edge of the outer panel 10 by slanting the rim itself and pushing it to slide along the edge of the panel 10 (as shown by the arrow, Fig. 2).
  • the rim 12 is fully positioned under the edge of the panel, the rim is rotated in order that its groove 15 enters in engagement with the bent edge of the panel 10 (as shown by the arrow, Fig. 3).
  • a bottom rim is applied to the opposite end of the door panel.
  • the door body is completed through the application of the inner liner 11 by engaging the respective edges of panels and rim (Fig. 4). Then, the polyurethane foam is let to enter into the space delimited by the panels 10, 11 and the top and bottom rims 12, and to expand within said space, in a conventional way.
  • the lateral edges of the rim 12 are conveniently shaped in order to facilitate the operation of sliding the rim and mutual engaging between rim and panel.
  • the lateral edges of the rim 12 are provided with an undercut 20 and a sloped part 21 (Fig. 2-4).
  • Figure 5 shows a partial perspective view of a particular feature concerning the assembly of the top rim 12 with the inner liner 11 to close internally the door body during the last part of the introduction phase for the rim 12 under the edge of the inner liner 11.
  • the back edge of the rim 12 is provided on each side with a recess 18 which allows the rim to take over the edge of a rear extension 19 of the outer panel 10 and to engage the inner liner 11 against it.
  • the features disclosed may be modified without departing from the scope of the invention.
  • the shape of the rims 12 may be changed depending on a different profile of the panels, which can be linear or curved along their sides.
  • the reciprocal engagement on the back side of rim 12, outer panel 10 and inner liner 11 may be obtained with a geometry different from that before disclosed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
EP04100127A 2004-01-16 2004-01-16 Kühlgerätetürkonstruktion Withdrawn EP1555497A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04100127A EP1555497A1 (de) 2004-01-16 2004-01-16 Kühlgerätetürkonstruktion
BRPI0418406-8A BRPI0418406A (pt) 2004-01-16 2004-12-22 método para produzir uma porta para um aparelho de refrigeração, e, porta para um aparelho de refrigeração
PCT/EP2004/053681 WO2005068922A1 (en) 2004-01-16 2004-12-22 Refrigerator door construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04100127A EP1555497A1 (de) 2004-01-16 2004-01-16 Kühlgerätetürkonstruktion

Publications (1)

Publication Number Publication Date
EP1555497A1 true EP1555497A1 (de) 2005-07-20

Family

ID=34610217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04100127A Withdrawn EP1555497A1 (de) 2004-01-16 2004-01-16 Kühlgerätetürkonstruktion

Country Status (3)

Country Link
EP (1) EP1555497A1 (de)
BR (1) BRPI0418406A (de)
WO (1) WO2005068922A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2108906A1 (de) * 2008-04-09 2009-10-14 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät umfassend eine Türabschlussleiste mit integrierter Dichtung
WO2011064078A1 (de) * 2009-11-24 2011-06-03 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
RU2467265C2 (ru) * 2007-05-23 2012-11-20 Бсх Бош Унд Сименс Хаусгерете Гмбх Бытовой прибор
US9339993B2 (en) 2010-09-14 2016-05-17 Corning Incorporated Appliance fascia and mounting therefore

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB495326A (en) * 1937-05-10 1938-11-10 Percival Flavel Improvements in or relating to doors for heat retaining cabinets such as stoves and refrigerators
GB2109277A (en) * 1981-11-13 1983-06-02 Tokyo Shibaura Electric Co A method and device for manufacturing a box-shaped door
EP0280306A1 (de) * 1987-02-25 1988-08-31 N.V. Hörmann-Belgie Tor- oder Türblattflügel
US5520453A (en) 1991-11-07 1996-05-28 Matsushita Refrigeration Company Heat insulating door wall structure
US5588731A (en) 1995-07-17 1996-12-31 Whirlpool Corporation Refrigerator door construction
US5909937A (en) 1995-03-27 1999-06-08 General Electric Company Refrigerator door assembly
DE29916169U1 (de) * 1998-10-06 1999-12-09 Electrolux Zanussi Grandi Impi Verbesserte gewölbte Türen für Kühlschränke

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB495326A (en) * 1937-05-10 1938-11-10 Percival Flavel Improvements in or relating to doors for heat retaining cabinets such as stoves and refrigerators
GB2109277A (en) * 1981-11-13 1983-06-02 Tokyo Shibaura Electric Co A method and device for manufacturing a box-shaped door
EP0280306A1 (de) * 1987-02-25 1988-08-31 N.V. Hörmann-Belgie Tor- oder Türblattflügel
US5520453A (en) 1991-11-07 1996-05-28 Matsushita Refrigeration Company Heat insulating door wall structure
US5909937A (en) 1995-03-27 1999-06-08 General Electric Company Refrigerator door assembly
US5588731A (en) 1995-07-17 1996-12-31 Whirlpool Corporation Refrigerator door construction
DE29916169U1 (de) * 1998-10-06 1999-12-09 Electrolux Zanussi Grandi Impi Verbesserte gewölbte Türen für Kühlschränke

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2467265C2 (ru) * 2007-05-23 2012-11-20 Бсх Бош Унд Сименс Хаусгерете Гмбх Бытовой прибор
EP2108906A1 (de) * 2008-04-09 2009-10-14 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät umfassend eine Türabschlussleiste mit integrierter Dichtung
WO2011064078A1 (de) * 2009-11-24 2011-06-03 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
CN102667375A (zh) * 2009-11-24 2012-09-12 Bsh博世和西门子家用电器有限公司 制冷电器
US9339993B2 (en) 2010-09-14 2016-05-17 Corning Incorporated Appliance fascia and mounting therefore

Also Published As

Publication number Publication date
BRPI0418406A (pt) 2007-05-15
WO2005068922A1 (en) 2005-07-28
WO2005068922B1 (en) 2005-09-29

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Owner name: ELECTROLUX HOME PRODUCTS CORPORATION N.V.

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