EP0273192A1 - Porte pour un récipient frigorifique - Google Patents

Porte pour un récipient frigorifique Download PDF

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Publication number
EP0273192A1
EP0273192A1 EP87117219A EP87117219A EP0273192A1 EP 0273192 A1 EP0273192 A1 EP 0273192A1 EP 87117219 A EP87117219 A EP 87117219A EP 87117219 A EP87117219 A EP 87117219A EP 0273192 A1 EP0273192 A1 EP 0273192A1
Authority
EP
European Patent Office
Prior art keywords
door
narrow sides
inner door
edge
plastic
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
EP87117219A
Other languages
German (de)
English (en)
Other versions
EP0273192B1 (fr
Inventor
Friedrich Karl Dipl.-Ing. Simon
Klaus Schmider
Jürgen Schmidbauer
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.)
Umformtechnik Hausach GmbH
Original Assignee
Umformtechnik Hausach 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 Umformtechnik Hausach GmbH filed Critical Umformtechnik Hausach GmbH
Publication of EP0273192A1 publication Critical patent/EP0273192A1/fr
Application granted granted Critical
Publication of EP0273192B1 publication Critical patent/EP0273192B1/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
    • F25D23/02—Doors; Covers

Definitions

  • the invention relates to a door for a refrigerated container with a stable, outer door leaf, an inner door surface designed as sheet metal lining, with narrow sides connecting the outer door leaf and the inner door surface, which encompass the edges of the outer door leaf as profiles and have a connecting profile made of plastic and with a foam insulation located between the outer door leaf and the inner door surface.
  • the profiles that surround the edges of the outer door panel are generally made of aluminum because of their resistance. This is followed by the plastic connecting profile used to prevent thermal bridges. It is of course also possible to also produce the profile from plastic encompassing the edges of the outer door leaf, in which case this profile and the connecting profile are expediently formed as the only plastic profile. In the known doors, the plastic profiles of the narrow sides also form the inside edge of the door.
  • the sheet of the inner door surface is then inserted as a flat sheet in a slot in the plastic profile.
  • This type of construction of the container door is disadvantageous, since the plastic profiles are often damaged and torn open, particularly in the corners, in the case of rough handling.
  • the known doors are difficult to reliably seal when foaming the space between the outer door leaf and the inner lining.
  • the metal sheets inserted into the slots in the plastic profiles must be inserted in the corner area, in particular through angles riveted and reinforced. Nevertheless, it cannot be avoided with the known doors that the foam always comes out of any holes. Removing and cleaning the outer surfaces of foam residues is a complex task.
  • the object of the invention is seen in developing a door for a refrigerated container which is insensitive in the corner region of the inside of the door and which is easy to manufacture.
  • this object is achieved in a door for adecon tainer of the type mentioned in that the sheet of the inner door surface is folded into the narrow sides, each abutting, edge-forming sheets of the narrow sides of the door are welded to an inner door shell and that Door shell on the narrow sides of the door with the connection profile is connected all round.
  • the fact that the sheets are folded and welded creates completely tight and shock-resistant corners and edges, which have dimensional stability and at most are pushed in under heavy impact loads, but are not torn open, so that the door remains unaffected in terms of usability in the event of damage. Leakage of foam when foaming in the corner area is reliably avoided.
  • the connection point of the sheet with the plastic profile on the narrow sides of the door must also be sealed well, since this is a single, smooth, linear sealing point.
  • the invention can be advantageously configured as follows.
  • a good effective seal with a simple possibility of connecting the folded narrow sides of the sheet with the plastic profiles can be achieved in that the plastic profile at the connection point has the shape of a pocket with a protruding edge on the inside (undercut) and the plate at its connection point as an expansion spring is bent inside and that the spreading spring with the edge against the bottom of the projecting edge supports the bag and presses the outer surface of the sheet against the surface of the bag opposite the projection.
  • the connection is made by simply pressing the spring into the pocket. The spring force holds the outer surface tight against the pocket at the beginning of the foaming process. If the pressure increases during foaming, the internal pressure also has a sealing effect and the spring counteracts the sheet from evading due to the stabilizing effect.
  • edges between the narrow sides and the inside of the door are advantageously chamfered to avoid shock loads.
  • the figure shows a section of a frequently used door for a refrigerated container in section.
  • the double-leaf door arranged on the front side for a refrigerated container has an outer stable door leaf made of multilayer glued plywood 1 and an inner door surface designed as sheet metal lining.
  • the outer door leaf 1 and the inner door surface are connected by narrow sides 2 which, as aluminum extrusion profiles 3, grip around the edges of the outer door leaf 1 and hold them together with a connecting profile 4 made of PVC sealing profiles 5.
  • the inside of the door is foamed with foam insulation 6.
  • the sheet of the inner door surface turns into the narrow sides 2 by bending.
  • Each of the narrow sides of the sheet metal that abut one another, together with the inner door surface, are welded to one another (not shown).
  • the resulting inner door shell 7 made of sheet metal is connected to the plastic profile 4 on the narrow sides 2 of the door.
  • the plastic profile 4 has the shape of a pocket 8. This has a projecting edge 9, against which the sheet metal, the edge of which is bent inwards as a spreading spring 10, is supported.
  • the spreading spring presses the sheet metal with its outer surface against the surface 11 of the pocket 8 opposite the projection.
  • the edges of the inner door shell 7 between the narrow sides 2 and the inner door surface are beveled 12.
  • the two door leaves are each fastened to the container with four hinges 13 screwed to the outer door leaf 1 about a pin 14.
  • connection point between the inner door shell 7 and the connection profile 4 lies on the narrow sides 2 of the door, a circumferential connection point is obtained which, due to the spring-like design of the sheet metal edge and the pocket 8 in the connection profile 4, is easy to assemble and tight against the escape of foam is.
  • the welded corners of the inner door shell 7 are tight and insensitive to impact. They are smooth on the surface by grinding.

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)
EP87117219A 1986-12-06 1987-11-23 Porte pour un récipient frigorifique Expired - Lifetime EP0273192B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19868632785 DE8632785U1 (de) 1986-12-06 1986-12-06 Tür für einen Kühlcontainer
DE8632785U 1986-12-06

Publications (2)

Publication Number Publication Date
EP0273192A1 true EP0273192A1 (fr) 1988-07-06
EP0273192B1 EP0273192B1 (fr) 1991-08-07

Family

ID=6800920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117219A Expired - Lifetime EP0273192B1 (fr) 1986-12-06 1987-11-23 Porte pour un récipient frigorifique

Country Status (4)

Country Link
EP (1) EP0273192B1 (fr)
DE (2) DE8632785U1 (fr)
PL (1) PL155139B1 (fr)
YU (1) YU45471B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU633396B2 (en) * 1990-03-14 1993-01-28 Aktiebolaget Electrolux Door made of folded sheet metal
GB2265701A (en) * 1992-03-31 1993-10-06 Somers Specialised Vehicles Li Thermal insulation for the doors of vans
WO2000049351A1 (fr) * 1999-02-19 2000-08-24 BSH Bosch und Siemens Hausgeräte GmbH Porte d'appareil frigorifique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012200813A1 (de) * 2012-01-20 2013-07-25 BSH Bosch und Siemens Hausgeräte GmbH Wärmedämmende Tür für ein Kältegerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1379067A (en) * 1921-05-24 Refrigerator-door construction
US1753952A (en) * 1927-06-08 1930-04-08 Kelvinator Corp Refrigerator door
US2665456A (en) * 1950-05-12 1954-01-12 Admiral Corp Refrigerator door
FR2251789A1 (fr) * 1973-11-21 1975-06-13 Philips Nv
GB2130351A (en) * 1982-11-15 1984-05-31 Tokyo Shibaura Electric Co Insulated doors
EP0162344A2 (fr) * 1984-05-24 1985-11-27 INDUSTRIE ZANUSSI S.p.A. Porte pour un réfrigérateur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1379067A (en) * 1921-05-24 Refrigerator-door construction
US1753952A (en) * 1927-06-08 1930-04-08 Kelvinator Corp Refrigerator door
US2665456A (en) * 1950-05-12 1954-01-12 Admiral Corp Refrigerator door
FR2251789A1 (fr) * 1973-11-21 1975-06-13 Philips Nv
GB2130351A (en) * 1982-11-15 1984-05-31 Tokyo Shibaura Electric Co Insulated doors
EP0162344A2 (fr) * 1984-05-24 1985-11-27 INDUSTRIE ZANUSSI S.p.A. Porte pour un réfrigérateur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU633396B2 (en) * 1990-03-14 1993-01-28 Aktiebolaget Electrolux Door made of folded sheet metal
GB2265701A (en) * 1992-03-31 1993-10-06 Somers Specialised Vehicles Li Thermal insulation for the doors of vans
GB2265701B (en) * 1992-03-31 1995-09-20 Somers Specialised Vehicles Li Thermal insulation of vans
WO2000049351A1 (fr) * 1999-02-19 2000-08-24 BSH Bosch und Siemens Hausgeräte GmbH Porte d'appareil frigorifique

Also Published As

Publication number Publication date
YU45471B (en) 1992-05-28
DE8632785U1 (de) 1987-02-12
DE3772016D1 (de) 1991-09-12
EP0273192B1 (fr) 1991-08-07
PL269181A1 (en) 1988-09-01
YU216687A (en) 1989-12-31
PL155139B1 (en) 1991-10-31

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