WO2004023052A1 - Cadre de porte avec joint d'etancheite pour appareils de refrigeration - Google Patents

Cadre de porte avec joint d'etancheite pour appareils de refrigeration Download PDF

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Publication number
WO2004023052A1
WO2004023052A1 PCT/EP2003/009603 EP0309603W WO2004023052A1 WO 2004023052 A1 WO2004023052 A1 WO 2004023052A1 EP 0309603 W EP0309603 W EP 0309603W WO 2004023052 A1 WO2004023052 A1 WO 2004023052A1
Authority
WO
WIPO (PCT)
Prior art keywords
profile
group
magnetic
sealing
door sealing
Prior art date
Application number
PCT/EP2003/009603
Other languages
German (de)
English (en)
Inventor
Gerd Puchta
Steven Schmidt
Original Assignee
Rehau Ag + Co
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 Rehau Ag + Co filed Critical Rehau Ag + Co
Priority to AU2003266328A priority Critical patent/AU2003266328A1/en
Priority to EP03793771A priority patent/EP1535008A1/fr
Publication of WO2004023052A1 publication Critical patent/WO2004023052A1/fr

Links

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

Definitions

  • the current state of the art for the manufacture of door sealing frames comprises the following steps: First, the sealing profile and the magnetic profile are extruded separately. Then the respective profiles are cut to the desired length, then the magnetic profiles are pushed into the pocket of the sealing profiles. Now the miter cut is made, finally the essentially rectangular door sealing frame is completed by corner welding.
  • EP 0599161 B1 teaches the implementation of a magnetic seal with a profile geometry optimized for bending deformation.
  • the magnetic profile pieces are aligned perpendicular to the refrigerator wall.
  • EP 1031450 A1 in the form of a compression seal containing magnetic tape based on round cords or hoses.
  • the sealing effect is achieved by means of a tubular profile, in which magnetic additives are incorporated.
  • the disadvantage here is that due to the - in view of the necessary flexibility of the seal - necessarily small proportion of the magnetic material in the sealing profile and The associated large air gap between the elementary magnetic particles means that only a small magnetic force can be achieved.
  • EP 1022176 A2 teaches that instead of a tubular sealing profile filled with magnetic particles, an unfilled sealing profile can be provided with a narrow magnetic strip. In this case, it is disadvantageous that the uniform appearance of the tubular sealing profile is disturbed by the subsequently applied magnetic additional profile.
  • EP 0599161 B1 describes the use of expansion folds to make magnetic seals more flexible.
  • the expansion folds discussed in the property right are not used for the realization of tight radii, but serve to flexibly connect the sealing head and sealing foot, so that the magnet-containing door sealing frame must also be completed in this case by miter cuts and the four welding processes.
  • the task could be solved by combining suitable spatial shapes and formulations of the sealing profiles in connection with suitable formulations of the magnetic profiles.
  • a door sealing frame primarily has to meet the following requirements: Cost-effective manufacturability
  • the required sealing function is ensured according to the invention by suitable formulations in conjunction with suitable spatial shapes of the sealing profile, as can be seen, for example, from FIGS. 1-3, explained in more detail in exemplary embodiments 1-3.
  • suitable spatial shapes of the sealing profile which are specially designed in the direction of flexible installation and maintenance of the sealing function even with radii of 50 mm and below
  • a particularly essential part of the invention is the design of the magnetic profile. Compared to the prior art, this has a significantly increased flexibility, it can be welded and at the same time contains a high proportion of magnetic material in order to achieve the magnetic adhesive force necessary for securely closing the refrigerator door.
  • the flexibility and elongation at break of the recipe have been increased at fill levels in the range between 40 and 80% by weight so that a flat, rectangular magnetic profile with a cross section of 9 x 2 mm can be bent with the flat surface by a radius of 20 mm, without cracks or other damage to the magnetic profile.
  • the magnetic profile according to the invention represents a preparation of inorganic oxide magnetic materials with thermoplastic, polymeric binders, as well as other additives and fillers.
  • the spatial shape of the magnetic profile will be based on the sealing profile.
  • the magnetic profile is used as a “magnetic tape” which has an essentially rectangular cross section and has smooth side areas (see FIG. 1).
  • essentially trapezoidal (see FIG. 2) or square cross sections are also possible, for example.
  • the magnetic profile In the case of a sealing profile in the form of a bellows with folds perpendicular to the longitudinal axis of the profile (see FIG. 3), the magnetic profile will have an essentially rectangular cross section.
  • the door sealing frame according to the invention can be fastened in the refrigerator door by pressing it directly into a receptacle.
  • the sealing profiles according to the invention comprise the following components:
  • thermoplastic polymer selected from the group of styrenic copolymers or PVC - between 0 and 60% by weight of a plasticizer, for example based on phthalates, adipates, citrates or mineral oils between 0 and 5% by weight .-% of a stabilizer or fungicide, e.g. B. from the group of metal tearate or phenol derivatives between 0 and 5% by weight of an extrusion aid or lubricant, selected from the group of long-chain carboxylic acids or waxes, between 0 and 5% by weight of a blowing agent, between 0 and 30% by weight of an inorganic filler
  • a plasticizer for example based on phthalates, adipates, citrates or mineral oils between 0 and 5% by weight .-% of a stabilizer or fungicide, e.g. B. from the group of metal tearate or phenol derivatives between 0 and 5% by weight of an extrusion aid or lubricant, selected from the
  • the magnetic profile according to the invention has the following components:
  • thermoplastic binder for example from the group of styrene copolymers or chlorinated polyethylenes between 0.2 and 10 wt .-% of a plasticizer, selected from the group of polymer plasticizers and / or mineral oils - between 0.2 and 10 wt .-% of an extrusion aid or lubricant, selected from the group of long-chain carboxylic acids or waxes between 0.5 and 5 wt .-% of a stabilizer selected from the group of metal stearates.
  • Fig. 1 shows a door sealing frame, wherein the sealing profile 1 has folds 2 in the longitudinal axis and a fastening profile 3 with undercuts.
  • the magnetic component 4 is coextruded in the form of a strip of rectangular cross section with the sealing profile.
  • the system is designed in such a way that it is deformed when the radius is laid, but the deformation does not impair the function: Magnetic adhesive force and sealing function are retained with radii of 50 mm and below despite the deformation.
  • the door sealing frame is designed on the recipe side in such a way that the supply of thermal energy plastifies both the magnetic profile and the Sealing profile, can be achieved and thus a material connection is possible.
  • composition of the magnetic profile is Composition of the magnetic profile:
  • the door sealing frame in the form of a foamed hose with a smooth surface 1, in which the magnetic component 2 is extruded in the form of a tape with an essentially trapezoidal cross section.
  • the system allows bending by a radius of ⁇ 20 mm without loss of function, the restoring force of the seal is minimized by the recipe and the burr of the foam when the refrigerator door is closed.
  • the materials of the magnetic component and the sealing profile are selected in such a way that an inseparable connection between the sealing profile and the magnetic component is ensured and a material connection in the area of the ends is possible.
  • Composition of the foamed sealing hose Composition of the foamed sealing hose:
  • composition of the magnetic profile is Composition of the magnetic profile:
  • sealing profile 3 describes a perspective view of an embodiment of the sealing profile 1, which has predetermined deformation points, that is to say folds 2 perpendicular to the longitudinal axis of the profile, for problem-free adaptation to almost any radii in the refrigerator door.
  • the magnetic component is coextruded with the sealing profile, it consists of a magnetic tape 3 with an essentially rectangular cross section. These folds allow the sealing profiles to be in an uncritical, i.e. H. for the sealing function as such an area that is not essential. Installation radii of less than 20 mm are possible here.
  • the sealing profile and magnetic component can also be connected by welding, especially the ends of the profile.
  • thermoplastic styrene rubber 100% by weight
  • composition of the magnetic profile is Composition of the magnetic profile:

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)

Abstract

L'invention concerne un cadre de porte avec joint d'étanchéité, destiné à un meuble réfrigérant et composé d'un joint d'étanchéité profilé et d'un profilé magnétique. L'invention est caractérisée en ce que la forme et la formulation du profilé magnétique et du joint d'étanchéité profilé sont optimisées, à savoir leurs rayons de pose sont réduits.
PCT/EP2003/009603 2002-09-05 2003-08-29 Cadre de porte avec joint d'etancheite pour appareils de refrigeration WO2004023052A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003266328A AU2003266328A1 (en) 2002-09-05 2003-08-29 Door sealing frame for refrigerating devices
EP03793771A EP1535008A1 (fr) 2002-09-05 2003-08-29 Cadre de porte avec joint d'etancheite pour appareils de refrigeration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002141001 DE10241001A1 (de) 2002-09-05 2002-09-05 Türdichtungsrahmen für Kühlgeräte
DE10241001.1 2002-09-05

Publications (1)

Publication Number Publication Date
WO2004023052A1 true WO2004023052A1 (fr) 2004-03-18

Family

ID=31724367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/009603 WO2004023052A1 (fr) 2002-09-05 2003-08-29 Cadre de porte avec joint d'etancheite pour appareils de refrigeration

Country Status (4)

Country Link
EP (1) EP1535008A1 (fr)
AU (1) AU2003266328A1 (fr)
DE (1) DE10241001A1 (fr)
WO (1) WO2004023052A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857254A1 (fr) * 2006-05-19 2007-11-21 REHAU AG + Co Joint d'étanchéité profilé avec aimant et procédé de fabrication
DE102007028616A1 (de) * 2007-06-19 2008-12-24 Rehau Ag + Co. Profil zur Dichtung einer Tür
EP2074923A1 (fr) * 2007-12-27 2009-07-01 Daewoo Electronics Corporation Joint
WO2021078674A1 (fr) 2019-10-23 2021-04-29 Rehau Ag + Co Ensemble profilé, en particulier pour un réfrigérateur et/ou congélateur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010032A1 (de) * 2006-03-04 2007-09-06 Rehau Ag + Co Verfahren zur Montage eines Türdichtungsprofils an einem Türelement einer Kühlgerätetür, Türdichtungsprofil zur Durchführung des Verfahrens, Kühlgerätetür mit einem Türelement zur Durchführung des Verfahrens sowie Türelement einer derartigen Kühlgerätetür
CN106679299A (zh) * 2017-01-19 2017-05-17 合肥华凌股份有限公司 门封条及其制备工艺和制冷设备

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942308A (en) * 1956-10-03 1960-06-28 Goodrich Co B F Resilient gasket
US3111728A (en) * 1960-08-02 1963-11-26 Sterling W Alderfer Magnetically adherent resilient articles
JPS53120038A (en) * 1977-03-29 1978-10-20 Toshiba Corp Gasket equipped with magnet
JPS53120787A (en) * 1977-03-30 1978-10-21 Toshiba Corp Weld jointing of magnet gaskets
JPS53121879A (en) * 1977-04-01 1978-10-24 Toshiba Corp Preparation of magnet gasket
JPH01123985A (ja) * 1987-11-10 1989-05-16 Matsushita Refrig Co Ltd 冷蔵庫等のドアガスケット製造方法
EP0519545A1 (fr) * 1991-06-17 1992-12-23 INDUSTRIE ILPEA S.p.A. Joint magnétique en particulier pour former une étanchéité entre parties fixes telles qu'une carrosserie d'automobile et une partie ouvrante; telle qu'une portière dans sa zone courbée
EP0599161A1 (fr) * 1992-11-27 1994-06-01 Bosch-Siemens HausgerÀ¤te GmbH Dispositif d'étanchéité, en particulier pour la porte d'un réfrigérateur ou congélateur
EP0613425A1 (fr) * 1991-11-25 1994-09-07 Ilpea Ind Spa Garniture magnetique con ue pour former un joint etanche entre une piece fixe et une piece ouvrante.
US5990218A (en) * 1998-11-20 1999-11-23 The Goodyear Tire & Rubber Company Polymeric magnet compound
US6022028A (en) * 1994-12-20 2000-02-08 Industrie Ilpea S.P.A. Gaskets especially for refrigerators based on an olefin polymer
EP1022176A2 (fr) 1999-01-25 2000-07-26 Ford Global Technologies, Inc. Système d'étanchéité pour une porte de véhicule
EP1031450A1 (fr) 1999-02-22 2000-08-30 The Standard Products Company Joint d'étanchéite avec couche magnétique
US6359051B1 (en) * 1999-12-14 2002-03-19 The Goodyear Tire & Rubber Company Magnetic thermoplastic tubing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927719C2 (de) * 1989-08-23 1995-01-05 Alkor Gmbh Kunststofformmasse und Verwendung derselben
DE20114870U1 (de) * 2001-09-08 2001-12-13 Rehau Ag & Co Dichtungsprofil, insbesondere für die Tür eines Kühlmöbels

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942308A (en) * 1956-10-03 1960-06-28 Goodrich Co B F Resilient gasket
US3111728A (en) * 1960-08-02 1963-11-26 Sterling W Alderfer Magnetically adherent resilient articles
JPS53120038A (en) * 1977-03-29 1978-10-20 Toshiba Corp Gasket equipped with magnet
JPS53120787A (en) * 1977-03-30 1978-10-21 Toshiba Corp Weld jointing of magnet gaskets
JPS53121879A (en) * 1977-04-01 1978-10-24 Toshiba Corp Preparation of magnet gasket
JPH01123985A (ja) * 1987-11-10 1989-05-16 Matsushita Refrig Co Ltd 冷蔵庫等のドアガスケット製造方法
EP0519545A1 (fr) * 1991-06-17 1992-12-23 INDUSTRIE ILPEA S.p.A. Joint magnétique en particulier pour former une étanchéité entre parties fixes telles qu'une carrosserie d'automobile et une partie ouvrante; telle qu'une portière dans sa zone courbée
EP0613425A1 (fr) * 1991-11-25 1994-09-07 Ilpea Ind Spa Garniture magnetique con ue pour former un joint etanche entre une piece fixe et une piece ouvrante.
EP0599161A1 (fr) * 1992-11-27 1994-06-01 Bosch-Siemens HausgerÀ¤te GmbH Dispositif d'étanchéité, en particulier pour la porte d'un réfrigérateur ou congélateur
EP0599161B1 (fr) 1992-11-27 1998-08-12 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'étanchéité, en particulier pour la porte d'un réfrigérateur ou congélateur
US6022028A (en) * 1994-12-20 2000-02-08 Industrie Ilpea S.P.A. Gaskets especially for refrigerators based on an olefin polymer
US5990218A (en) * 1998-11-20 1999-11-23 The Goodyear Tire & Rubber Company Polymeric magnet compound
EP1022176A2 (fr) 1999-01-25 2000-07-26 Ford Global Technologies, Inc. Système d'étanchéité pour une porte de véhicule
EP1031450A1 (fr) 1999-02-22 2000-08-30 The Standard Products Company Joint d'étanchéite avec couche magnétique
US6359051B1 (en) * 1999-12-14 2002-03-19 The Goodyear Tire & Rubber Company Magnetic thermoplastic tubing

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0021, no. 51 (M - 043) 18 December 1978 (1978-12-18) *
PATENT ABSTRACTS OF JAPAN vol. 0021, no. 55 (C - 032) 26 December 1978 (1978-12-26) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 18 5 June 2001 (2001-06-05) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857254A1 (fr) * 2006-05-19 2007-11-21 REHAU AG + Co Joint d'étanchéité profilé avec aimant et procédé de fabrication
DE102007028616A1 (de) * 2007-06-19 2008-12-24 Rehau Ag + Co. Profil zur Dichtung einer Tür
EP2074923A1 (fr) * 2007-12-27 2009-07-01 Daewoo Electronics Corporation Joint
WO2021078674A1 (fr) 2019-10-23 2021-04-29 Rehau Ag + Co Ensemble profilé, en particulier pour un réfrigérateur et/ou congélateur

Also Published As

Publication number Publication date
EP1535008A1 (fr) 2005-06-01
DE10241001A1 (de) 2004-03-18
AU2003266328A1 (en) 2004-03-29

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