US3335538A - Refrigerator doors - Google Patents

Refrigerator doors Download PDF

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Publication number
US3335538A
US3335538A US453255A US45325565A US3335538A US 3335538 A US3335538 A US 3335538A US 453255 A US453255 A US 453255A US 45325565 A US45325565 A US 45325565A US 3335538 A US3335538 A US 3335538A
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US
United States
Prior art keywords
panel
frame
door
appendix
groove
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
Application number
US453255A
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English (en)
Inventor
Ganzinotti Jean Victor
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.)
Maille Et Vagneux And Equipement Moderne Industriel Par Application Du Caoutchouc Manufacture Et Des Plastiques "emi" Ets
Maille et Vagneux SA
Original Assignee
Maille et Vagneux SA
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 Maille et Vagneux SA filed Critical Maille et Vagneux SA
Application granted granted Critical
Publication of US3335538A publication Critical patent/US3335538A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/087—Sealing strips
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/88—Edge-protecting devices for door leaves
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
    • E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
    • E06B7/2309—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a hollow sealing part
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2318—Plastic, sponge rubber, or like strips or tubes by applying over- or under-pressure, e.g. inflatable

Definitions

  • Refrigerator doors must be thermally insulating and must have a mechanical strength and a rigidity sufficient to accommodate, without damage, the considerable strain which is applied thereto in order to obtain a good seal between the door and the refrigerator.
  • thermally insulating materials generally have relatively weak mechanical properties.
  • the external and internal surfaces of the door are at different temperatures, for example, the internal surface may be 30 C. and the external surface may be C., stresses are set up which tend to distort the door.
  • refrigerator doors have been generally constituted by a frame made of a mechanically resistant material .filled with a thermally insulating substance rigidly fixed to the frame, for example by adhering, and by coverings which are also fixed to the frame and to the thermally insulating substance.
  • the different elements are given dimensions which are much greater than those which they would have had if they had to fulfill the only function for which they have been intended.
  • the thickness of the thermal insulating substance is greater than that necessary to ensure only thermal insulation
  • the dimensions of the frame are greater than are necessary to resist the single mechanical strain while the door is being closed, and the coverings have larger dimensions and superior quality than is necessary to protect the thermal insulating substance.
  • the present invention has for an object to provide a refrigerator door which is simpler and cheaper to construct and the construction of which is easier than existing refrigerator doors.
  • the door comprises a frame made of a rigid and mechanically re sistant material, a panel made of a thermally insulating substance incorporated in the frame without being rigidly secured thereto, and a joint element capable of forming a seal between the door and the cold chamber of a refrigerator, which element possesses an appendix which serves to secure the joint element and ensures, at the same time, the assembly of the frame and panel in a supple and flexible manner.
  • FIGURE 1 is a diagrammatic plan view of the upper left hand part of a refrigerator door constructed in accordance with one embodiment of the invention
  • FIGURE 2 is a section along the line 22 of FIG- URE 1,
  • FIGURE 3 is a section, similar to that of FIGURE 2, of a second embodiment
  • FIGURE 4 is a section, similar to that of FIGURE 2, of a third embodiment.
  • the refrigerator door comprises a panel 1 made of a thermally insulating substance located in a mechanically resistant frame 2, and a sealing joint element 4 which ensures that a good seal is formed between the door and a cold chamber 5 when the door is closed.
  • the element 4 is provided along its whole length with a fixing appendix 4a located in a groove defined between the frame 2 and the panel 1.
  • the panel 1 is made of any rigid suitable thermally insulating substance, such as cork or a cellular synthetic substance such as polystyrene, polyurethane or polyvinyl chloride. It is possible to form the panel from a plurality of layers. Since, in the door according to the invention, the panel fulfils only the single function of thermal insulation, if the cellular substance which constitutes it has closed cells, a cover need not be provided, or a light cover may suffice, disposed on the external part of the door, the cover being, preferably, separated from the panel.
  • the cover may be, for example, a metal sheet fixed directly on to the frame and separated from the :panel.
  • the frame 2 which is intended to accommodate the single mechanical load exerted whilst the door is being closed, is made of a substance having good mechanical properties. It may, for example, be made of metal, and in this case, it may be advantageous to use a relatively light metal such as an aluminum-based alloy, a plastics material, or a Stratified substance made of glass fibre and polyester resin.
  • the frame is produced by assembling profiled elements having the outline shown in FIGURES 1 and 2.
  • the frame 2 has a projecting 2a which engages in a groove in the panel 1 so as to define therewith a groove 3 which, in the embodiment shown in FIGURE 1, has a trapezoidal cross-section, but which may equally have any other shape, for example, polygonal, provided that the width of the opening of the groove is less than the largest transverse dimension of the groove, i.e. provided that the groove is undercut.
  • fframe 2 and the panel 1 are not fixed to one another, either by gluing or in any other way, so that they are completely independent of one another.
  • the assembly of the frame 2 and panel 1 is effected by means of the appendix 4a of the sealing joint element 4 which is made of rubber or any other similar flexible or resilient material.
  • the appendix 4a which has a generally expandable or inflatable configuration, is placed, after compression, into the groove 3 thereby ensuring at the same time that the panel 1 is properly keyed in the frame 2, that the joint element is secured to the door, and that the seal is provided between the frame 2 and the panel.
  • the joint element may be, for example, arranged around the panel whereafter the various components of the frame which are assembled may be put in position as the appendix 4a for fixing the joint element is compressed.
  • the appendix 4a of the joint is expanded or inflated by means of a fluid which may be a liquid or gas, and the part consituating the frame is provided with projections or clips 21) which are embedded in or penetrate the substance of the panel.
  • these clips 2b prevent any movement of the panel with respect to the frame and thus facilitate the production of the assembly.
  • FIGURE 3 also shows a screw 6 which may, for example, serve to assemble the door lock or catch of the door when closed.
  • a screw 6 which may, for example, serve to assemble the door lock or catch of the door when closed.
  • all the elements of the structure are positively fixed together after the appendix 441 has expanded, which appendix acts in the same way as that shown in FIGURE 2.
  • an expandable element 7, separate from the joint element 4, carries out the different functions of the appendix 4a in the previous embodiment.
  • the joint element 4 still includes an appendix 40, but this appendix only serves to enable the joint element to be fixed or held between the fframe 2 and the expandable element 7.
  • the groove defined between the frame and panel is not trapezoidal, but has, in part, a rounded shape corresponding to the shape of the element 7.
  • the expandable or inflated element 7 which is in the form of a cylinder, is made of a supple substance which 4 is impermeable to air and possibly reinforced by a tissue. It is inflated with air to a pressure of the order of 1.3 to 1.5 kg./cm.
  • the thermal insulating substance may be of minimum thickness compatible with good insulating properties, and that the frame has to resist only the strains which are exerted during closing of the door.
  • the frame by virtue of its construction, is disposed completely outside the zone where the thermal changes are produced. It may, therefore, be made from any material selected solely for its mechanical characteristics.
  • doors according to the invention may be easily manufactured, since the panel does not need a particular preparation and since the frame or its components may be prepared independently of the panel.
  • a refrigerator door comprising a panel of a thermally insulating substance, a frame of a substance having high mechanical resistance surrounding said panel, the frame and the panel defining a groove, said groove having a constricted opening, and a sealing element having a main body and along its entire length a fixing appendix made of a flexible substance, an expandable element located within the groove adjacent said appendix to urge the appendix against a wall of the groove in a compressed state so as to maintain the assembly of frame and panel in a resilient manner, said main body of the sealing elernent being compressible on closing the refrigerator door, to form a seal for the door.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Thermal Insulation (AREA)
US453255A 1964-05-06 1965-05-05 Refrigerator doors Expired - Lifetime US3335538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR973539A FR1406511A (fr) 1964-05-06 1964-05-06 Structure de porte

Publications (1)

Publication Number Publication Date
US3335538A true US3335538A (en) 1967-08-15

Family

ID=8829433

Family Applications (1)

Application Number Title Priority Date Filing Date
US453255A Expired - Lifetime US3335538A (en) 1964-05-06 1965-05-05 Refrigerator doors

Country Status (11)

Country Link
US (1) US3335538A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT260499B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE663334A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH437728A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1659722C3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES312590A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1406511A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1082567A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6505701A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
OA (1) OA01718A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE313063B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660937A (en) * 1969-01-31 1972-05-09 Werner Frach Windows, doors or the like
US4558553A (en) * 1984-04-27 1985-12-17 Steelcase Inc. Furniture article with edge molding
WO2002044620A1 (de) * 2000-11-29 2002-06-06 BSH Bosch und Siemens Hausgeräte GmbH Backofen
DE102007008707A1 (de) * 2007-02-19 2008-08-21 Rehau Ag + Co Kühlgerät
CN102997579A (zh) * 2012-12-30 2013-03-27 合肥美的荣事达电冰箱有限公司 用于冰箱的门体组件及具有它的冰箱
CN104896646A (zh) * 2015-06-12 2015-09-09 重庆铭心制冷设备科技有限公司 冷冻库用空气门
CN106642967A (zh) * 2016-11-10 2017-05-10 青岛海尔股份有限公司 冰箱的控制方法及冰箱

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214760A (en) * 1978-12-04 1980-07-29 Godfrey Dwaine A Seal for adjacent plates
GB2161852B (en) * 1984-07-21 1987-11-04 Ham Baker & Company Limited Seal
FR2600980B1 (fr) * 1986-05-15 1988-10-21 Glachet Charles Dispositif deconnectable pour la mise en communication de deux volumes clos sans rupture du confinement
DE3823779A1 (de) * 1987-07-17 1989-02-02 Markus Hermetische Deuren Schiebetueranordnung
FR2653210A1 (fr) * 1989-10-13 1991-04-19 Bonnet Sa Four de cuisson d'aliments.
CN109780794B (zh) * 2018-12-28 2022-12-16 海尔智家股份有限公司 冰箱

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036781A (en) * 1934-06-14 1936-04-07 Gen Electric Cabinet door
US2278331A (en) * 1940-12-12 1942-03-31 Haskelite Mfg Corp Edge seal for metal-faced panels
US2751638A (en) * 1952-11-14 1956-06-26 Whirlpool Seeger Corp Refrigerator cabinet construction
US3040393A (en) * 1957-08-05 1962-06-26 Baldwin Montrose Chemical Comp Vacuum insertable strip
US3243855A (en) * 1965-02-08 1966-04-05 Dow Chemical Co Cold space door

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036781A (en) * 1934-06-14 1936-04-07 Gen Electric Cabinet door
US2278331A (en) * 1940-12-12 1942-03-31 Haskelite Mfg Corp Edge seal for metal-faced panels
US2751638A (en) * 1952-11-14 1956-06-26 Whirlpool Seeger Corp Refrigerator cabinet construction
US3040393A (en) * 1957-08-05 1962-06-26 Baldwin Montrose Chemical Comp Vacuum insertable strip
US3243855A (en) * 1965-02-08 1966-04-05 Dow Chemical Co Cold space door

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660937A (en) * 1969-01-31 1972-05-09 Werner Frach Windows, doors or the like
US4558553A (en) * 1984-04-27 1985-12-17 Steelcase Inc. Furniture article with edge molding
WO2002044620A1 (de) * 2000-11-29 2002-06-06 BSH Bosch und Siemens Hausgeräte GmbH Backofen
US20040107955A1 (en) * 2000-11-29 2004-06-10 Bsh Bosch Und Siemens Hausgerate Gmbh Oven
US20070240701A9 (en) * 2000-11-29 2007-10-18 Bsh Bosch Und Siemens Hausgerate Gmbh Oven
DE102007008707A1 (de) * 2007-02-19 2008-08-21 Rehau Ag + Co Kühlgerät
CN102997579A (zh) * 2012-12-30 2013-03-27 合肥美的荣事达电冰箱有限公司 用于冰箱的门体组件及具有它的冰箱
CN102997579B (zh) * 2012-12-30 2015-03-25 合肥美的电冰箱有限公司 用于冰箱的门体组件及具有它的冰箱
CN104896646A (zh) * 2015-06-12 2015-09-09 重庆铭心制冷设备科技有限公司 冷冻库用空气门
CN104896646B (zh) * 2015-06-12 2018-06-19 重庆铭心制冷设备科技有限公司 冷冻库用空气门
CN106642967A (zh) * 2016-11-10 2017-05-10 青岛海尔股份有限公司 冰箱的控制方法及冰箱
CN106642967B (zh) * 2016-11-10 2019-01-18 青岛海尔股份有限公司 冰箱的控制方法及冰箱

Also Published As

Publication number Publication date
SE313063B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-08-04
GB1082567A (en) 1967-09-06
CH437728A (fr) 1967-06-15
FR1406511A (fr) 1965-07-23
AT260499B (de) 1968-03-11
OA01718A (fr) 1969-12-15
ES312590A1 (es) 1965-08-16
DE1659722C3 (de) 1975-04-17
BE663334A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-11-03
DE1659722A1 (de) 1971-01-21
DE1659722B2 (de) 1974-08-15
NL6505701A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-11-08

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