EP0283843A2 - Dispositif de joint pour armoires frigorifiques - Google Patents

Dispositif de joint pour armoires frigorifiques Download PDF

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Publication number
EP0283843A2
EP0283843A2 EP88103641A EP88103641A EP0283843A2 EP 0283843 A2 EP0283843 A2 EP 0283843A2 EP 88103641 A EP88103641 A EP 88103641A EP 88103641 A EP88103641 A EP 88103641A EP 0283843 A2 EP0283843 A2 EP 0283843A2
Authority
EP
European Patent Office
Prior art keywords
bellows
area
height
sealing
lid
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.)
Granted
Application number
EP88103641A
Other languages
German (de)
English (en)
Other versions
EP0283843A3 (en
EP0283843B1 (fr
Inventor
Bruno Pasqualini
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.)
ILPEA-KUNSTSTOFFVERARBEITUNG GmbH
Original Assignee
ILPEA-KUNSTSTOFFVERARBEITUNG GmbH
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 ILPEA-KUNSTSTOFFVERARBEITUNG GmbH filed Critical ILPEA-KUNSTSTOFFVERARBEITUNG GmbH
Priority to AT88103641T priority Critical patent/ATE101257T1/de
Publication of EP0283843A2 publication Critical patent/EP0283843A2/fr
Publication of EP0283843A3 publication Critical patent/EP0283843A3/de
Application granted granted Critical
Publication of EP0283843B1 publication Critical patent/EP0283843B1/fr
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

Definitions

  • the invention relates to a sealing arrangement for refrigerated cabinets, in particular freezers, with a hinged lid or hinged door, consisting of a circumferential mitred sealing frame with an elastically deformable sealing bellows.
  • Sealing arrangements of this type are attached below the outer edge of freezer lids, the weight of the lid of the freezer pressing against the sealing arrangement having a tubular cross section, so that an airtight seal is obtained.
  • the elastically deformable sealing bellows consists of rubber or a flexible plastic material, for example plasticized PVC, the profile being produced using the extrusion process, then cut to length as required, and then the various parts welded together to form a rectangular frame.
  • This frame which is attached underneath the outer edge of the lid, eliminates the unevenness between the chest and the lid thanks to its flexibility when the lid is closed.
  • the freezers operating at very low temperatures can reach considerable sizes, a strong negative pressure being established during operation, which can make opening the lid very difficult.
  • the main difference is between the pressure inside the chest and the atmospheric pressure outside for two reasons.
  • the sealing bellows which is approximately half pressed in the closed state, expands again, as a result of which the volume inside the chest is increased slightly and, as a result, the internal pressure is further reduced. Both effects mean that considerable effort is required to open the lid.
  • the object of the invention is to provide a sealing arrangement of the type specified, which can be manufactured in the normal manufacturing process without additional work steps, guarantees an optimal seal over the entire circumference, including the corners, and still a quick compensation of the pressure difference between the interior and atmosphere guaranteed.
  • the sealing bellows is divided by a circumferential web into an outer bellows area and an inner bellows area, that the height of the outer bellows area is slightly larger than the nominal distance between the refrigerator and the lid or door that the The height of the web is less than this nominal distance, that the height of the inner bellows area in the corner areas of the refrigerated cabinet is somewhat less than the mentioned nominal distance and in the remaining peripheral area is greater than the height of the outer bellows area.
  • Figure 1 shows a corner area of the sealing arrangement according to the invention in a perspective view.
  • the tubular bellows comprises a clampable fastening strip (1) as well as an outer bellows area (2) and an inner bellows area (3), between which a web (4) is located.
  • the wall thickness of the web (4) is significantly greater than the wall thickness of the bellows areas.
  • the inner bellows area (3) has an inward, approximately V-shaped folding zone (5) which is formed by at least substantially flat wall areas (6, 7).
  • This folding zone (5) is closed in the corners, in particular by a welding point (8).
  • FIG. 2 shows that the deformable sealing bellows is divided into two zones by the web (4), namely an outer zone A and an inner zone B.
  • the outer bellows area (2) assigned to zone A is not depressed during welding and thus retains its original extrusion shape and flexibility over the entire length, including the corner areas.
  • zone A is - as indicated by a corresponding distance arrow in FIG. 2 - 2.5 mm more than the nominal distance between the lid and the chest, which is identified by the reference symbol H.
  • the inner bellows area (3) which is assigned to zone B, has an open folding zone (5) outside the corner areas, the boundary walls (6, 7) of which form an acute angle with one another.
  • Figure 2 shows the unloaded state of the bellows.
  • the height of zone B is H plus 3 to 10 mm, where H in turn denotes the nominal distance between the lid and the chest.
  • Figure 3 shows the sealing bellows in the corner area, where the inner bellows (3) is locally welded, that is, the walls (6, 7) forming the folding zone are fixed in mutual contact, in particular by a weld seam (8).
  • the height of zone B is then 0.5 mm less than the distance H. It can also be seen from FIG. 3 that the unchanged zone A is assigned to the lower zone B in the corner region.
  • the web (4) is comparatively thick and its upper end has a height of H minus 0.5 mm and serves to support the respective cover.
  • the web (4) separates zone A from zone B and can be used with a corresponding lateral offset to reduce or increase the volume of the two zones as necessary.
  • the sealing arrangement according to the invention thus has a constant reduction in cross section only in the region of zone B, but this ensures that a quick pressure equalization is obtained when the lid is opened.
  • the outer zone which is not depressed during welding, retains its elasticity over the entire circumference and thus guarantees a perfect seal even at the respective corners when the lid is closed.
  • the cross-section of the sealing arrangement ensures that only the area of zone B is depressed during the normal welding process, without this Complications arise and that further additional burrs, which become solid on cooling and no longer form separable tubers and enlargements, only arise where they are necessary.
  • Figures 4 and 5 show the sealing arrangement in the installed state between a refrigerator (10) and a cover (11). 4 shows a section outside the corner areas, while FIG. 5 shows a section in the immediate corner.
  • the corners are only sealed by the outer bellows area (2) of the profile, which is only 2.5 mm higher than the nominal distance between the door and the refrigerator.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Gasket Seals (AREA)
EP88103641A 1987-03-19 1988-03-08 Dispositif de joint pour armoires frigorifiques Expired - Lifetime EP0283843B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103641T ATE101257T1 (de) 1987-03-19 1988-03-08 Dichtungsanordnung fuer kuehlmoebel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3709060A DE3709060C2 (de) 1987-03-19 1987-03-19 Dichtungsanordnung für Kühlmöbel, insbesondere Kühltruhen
DE3709060 1987-03-19

Publications (3)

Publication Number Publication Date
EP0283843A2 true EP0283843A2 (fr) 1988-09-28
EP0283843A3 EP0283843A3 (en) 1989-10-18
EP0283843B1 EP0283843B1 (fr) 1994-02-02

Family

ID=6323530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103641A Expired - Lifetime EP0283843B1 (fr) 1987-03-19 1988-03-08 Dispositif de joint pour armoires frigorifiques

Country Status (4)

Country Link
EP (1) EP0283843B1 (fr)
AT (1) ATE101257T1 (fr)
DE (1) DE3709060C2 (fr)
DK (1) DK147888A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690197A3 (fr) * 1994-06-30 1996-06-12 Rehau Ag & Co Profil d'étanchéité d'une porte
DE10255828B3 (de) * 2002-11-29 2004-08-05 Gebhardt Transport- Und Lagersysteme Gmbh Dichtung für einen Behälter, insbesondere Isolierbehälter
WO2009015673A1 (fr) 2007-07-31 2009-02-05 Carrier Corporation Module de meuble réfrigéré de point de vente
WO2016206922A1 (fr) * 2015-06-24 2016-12-29 BSH Hausgeräte GmbH Dispositif appareil frigorifique et procédé de réalisation d'un dispositif appareil frigorifique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511425U1 (de) * 1995-07-14 1995-11-09 Liebherr-Hausgeräte GmbH, 88416 Ochsenhausen Profil zur Dichtung einer Tür oder Klappe gegenüber einem Korpusteil
DE19907091A1 (de) * 1999-02-19 2000-08-24 Bsh Bosch Siemens Hausgeraete Haushaltsgerät mit einer nach oben offenen Truhe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117352A (en) * 1961-02-21 1964-01-14 H O Canfield Company Inc Non-slip door gasket
US3178778A (en) * 1961-10-10 1965-04-20 H O Canfield Company Inc Refrigerator seal
FR2445916A1 (fr) * 1979-01-04 1980-08-01 Refrigeration Cie Caladoise Appareil de production de froid, muni d'un systeme de reequilibrage de pressions
DE3330991C2 (de) * 1983-08-27 1986-08-14 REHAU AG + Co, 8673 Rehau Kühlmöbel mit einem umlaufenden Dichtungsrahmen
IT1175317B (it) * 1984-02-08 1987-07-01 Ilpea Spa Guarnizione di chiusura tra porta e relativa battuta su un mobile, in particolare un frigorifero

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690197A3 (fr) * 1994-06-30 1996-06-12 Rehau Ag & Co Profil d'étanchéité d'une porte
DE10255828B3 (de) * 2002-11-29 2004-08-05 Gebhardt Transport- Und Lagersysteme Gmbh Dichtung für einen Behälter, insbesondere Isolierbehälter
EP1426544A3 (fr) * 2002-11-29 2005-01-12 GEBHARDT Transport- und Lagersysteme GmbH Joint d'étanchéité pour récipient, notamment récipient isolant
WO2009015673A1 (fr) 2007-07-31 2009-02-05 Carrier Corporation Module de meuble réfrigéré de point de vente
WO2016206922A1 (fr) * 2015-06-24 2016-12-29 BSH Hausgeräte GmbH Dispositif appareil frigorifique et procédé de réalisation d'un dispositif appareil frigorifique

Also Published As

Publication number Publication date
DE3709060C2 (de) 1996-04-04
EP0283843A3 (en) 1989-10-18
DE3709060A1 (de) 1988-09-29
DK147888A (da) 1988-09-20
DK147888D0 (da) 1988-03-18
ATE101257T1 (de) 1994-02-15
EP0283843B1 (fr) 1994-02-02

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