FREEZER DOOR SUBASSEMBLY AND FREEZER WITH A FREEZER DOOR SUBASSEMBLY OF THIS TYPE

• US 20090007587A1
• Filed: 11/18/2006
• Published: 01/08/2009
• Est. Priority Date: 12/10/2005
• Status: Abandoned Application

• Current Assignee: Rehau AG + Company (Wagner Holding AG)
• Original Assignee: Rehau AG + Company (Wagner Holding AG)
• Inventors: Lanzl, Thomas, Waschke, Andreas, Baumgartner, Leopold
• Application Number:
  US12/096,377
• Publication Number:
  US 20090007587A1
• Time in Patent Office: Days
• US Class Current: 62/449
• CPC Class Codes: A47F 3/0434 Glass or transparent panels
• CPC Class Codes: F25D 21/04 Preventing the formation of frost or condensate
• CPC Class Codes: F25D 23/02 Doors; Covers F25D23/08 takes precedence locks or fastenings E05B65/0042
• CPC Class Codes: F25D 23/087 Sealing strips
• CPC Class Codes: F25D 2400/18 Aesthetic features

Abstract

A freezer door subassembly has a glass door and a door post against which the glass door bears in the closed position via a flexible seal. The glass door has a laminated assembly. The latter is held on its vertical edge section, which is adjacent to the door post in the closed position, by a frame profile. The flexible seal is arranged between the frame profile and the door post. The frame profile has a plastic profile base body which is coated on its visible sides by a decorative layer. The result is a freezer door subassembly which is improved in terms of freedom from condensation.

Claims

1. A freezer door subassembly (1)

-a- with a glass door (2),

-b- with a doorpost (4), against which the glass door (2) bears in the closing position via a flexible seal (3),

-c- the glass door (2) having a laminated structure (5), and

-d- the laminated structure (5) being received, at its vertical edge portion (11) adjacent to the doorpost (4) in the closing position, by a frame profile (12), and the flexible seal (3) being arranged between the frame profile (12) and the doorpost (4),

characterized in that the frame profile (12) has a basic plastic profile body (17) which is coated on its visible sides at least partially with a decorative layer (18).

2. The freezer door subassembly as claimed in claim 1, characterized by a basic plastic profile body (17) consisting of one of the following materials:

polyvinylchlioride (PVC), a polyolefin, such as polypropylene (PP) or polyethylene (PE), a styrene or a styrene copolymer, such as polystyrene (PS) or a styrene/butadiene copolymer with a predominant styrene fraction (SB) or acrylonitrile/styrene/acrylate copolymers (ASA) or acrylonitrile/butadiene/styrene copolymers (ABS) or styrene acrylonitrile (SAN) or acrylonitrile/butadiene/styrenc/polyamide copolymers (ABS/PA), polybutylenetcrephthalate (PBT), polyethyleneterephthalate (PET), polyoximethylene (POM), polyamide (PA), polymethylmethacrylate (PMMA), polycarbonate/polybutyleneterephthalate (PC/PBT), polycarbonate/polyethyleneterephthalate (PC/PET), polycarbonate/acrylonitrile/butadiene/styrene copolymers (PC/ABS), polycarbonate/acrylonitrile/styrene/acrylate copolymers (PC/ASA), polycarbonate (PC), thermoform-resistant polycarbonate (PC-HT), polyphenyleneoxide (PPO), polyphenyleneoxide with polyamide (PPO+PA), polyphenylencoxidestyrene (PPO+PS), foamed thermoplastics.

3. The freezer door subassembly as claimed in claim 1, characterized in that the decorative layer (18) is designed as a metal foil, with a metal from the following group:

aluminum, high-grade steel, brass, titanium, tantalum, tungsten, chromium, indium.

4. The freezer door subassembly as claimed in claim 1, characterized in that the decorative layer (18) is designed as a nonmetallic heat-conducting foil, with a compound from the following group:

titanium nitride or titanium oxynitride or titanium oxide, boron nitride or aluminum nitride or silicon oxide or silicon oxynitride or silicon nitride or an aluminum/silicon/titanium compound (AlSiTi) or tantalum silicide (TaSi) or a titanium/tungsten compound or undoped or doped silicon or polysilicon or tungsten silicide (WoSi) or molybdenum suicide (MoSi) or amorphous silicon.

5. The freezer door subassembly as claimed in claims 1, characterized in that the seal (3) has a magnetic body (26) which cooperates with a metallic portion (27) of the doorpost (4) in the closing position of the glass door (2), the seal (3), as seen from the freezer inner space (7), being arranged so as to be offset outward to an extent such that an interspace (28) is formed adjacently to the seal (3) between the doorpost (4) and the edge portion (11) of the laminated structure (5), which interspace is filled at least partially by a profile element (29) which forms a separation between the seal (3) and the inner space (7).

6. The freezer door subassembly as claimed in claim 5, characterized in that the profile element (29) is designed as a plastic profile, in particular as a plastic hollow chamber profile.

7. The freezer door subassembly as claimed in claim 6, characterized in that the profile element (29) is formed in one piece onto the frame profile (12).

8. The freezer door subassembly as claimed in claim 1, characterized by a heat-conducting metal foil (16) which is arranged in a glass reception region (13) of the basic plastic profile body (17) in such a way that a heat-conducting connection between an inside and an outside of the laminated structure (5) is made in the glass reception region (13).

9. The freezer door subassembly as claimed in claim 8, characterized in that the heat-conducting metal foil (16) is designed as aluminum foil.

10. The freezer door subassembly as claimed in claim 2, characterized in that the metal foil (16, 18) or the nonmetallic heat-conducting foil has a foil thickness in the range of 0.01 to 2.0 mm, in particular in the region of 0.1 mm.

11. The freezer door subassembly as claimed in claim 1, characterized by a basic plastic profile body (17) consisting of a thermoplastic with at least one filler from the following group:

chalk, talcum, wollastonite, nanofiller consisting of a stratified silicate or wood flour, cork, glass fiber, carbon fiber, metal fiber and their mixtures and of nonthermoplastic foams, in particular polyurethane foam.

12. The freezer door subassembly as claimed in claim 1, characterized in that the decorative layer is designed as a vapor-deposited or sputtered or plasma-deposited duroplastic or thermoplastic foil.

13. The freezer door subassembly as claimed in claim 12, characterized by a foil carrier material of the decorative layer consisting of polyvenylidenedifluoride (PVDF) or of polyester or acrylonitrile/styrene/acrylate copolymers (ASA) or polycarbonate (PC) or of duroplastic-impregnated paper foil.

14. The freezer door subassembly as claimed in claim 11, characterized by a coating of the decorative layer, consisting of at least one coating from the group:

aluminum or chromium or indium or titanium or tantalum or tungsten or titanium nitride or titanium oxynitride or titanium oxide or boronitride or boroxynitride or aluminum nitride or aluminum oxynitride or silicon oxide or silicon oxynitride or silicon nitride or an aluminum/silicon/titanium compound (AlSiTi) or tantalum silicide (TaSi) or an titaniuin/tungsten compound or tungsten silicide or molybdenum silicide (MoSi) or undoped or doped silicon or polysilicon or amorphous silicon.

15. The freezer door subassembly as claimed in claim 14, characterized by an at least two-layer decorative layer set-up, consisting of a combination of the coating of the decorative layer according to the group elements or group compounds mentioned in claim 14.

16. The freezer door subassembly as claimed in claim 1, characterized by a connecting layer between the metal foil (16, 18) and the basic plastic profile body (17), comprising:

as adhesion promoter;

polyurethane (PUR), polyester (PE), chlorinated polyolefins, maleic acid-grafted polyolefins, nanochlorinated polyvinylchloride (PVC) and copolymers; and

/or

as adhesive;

ethylene/vinylacetate copolymers (EVA), single-component polyurethane (1K-PUR), two-component polyurethane (2K-PUR), polyamide (PA), cyanoacrylates, methacrylates, epoxides, atactic poly-alpha-olefins (APAO), natural and synthetic rubbers, polyvinylchloride (PVC), polyvinylalcohol (PVA), silicones.

17. A freezer with a freezer door subassembly as claimed in one of claim 1.

18. The freezer door subassembly as claimed in claim 2, characterized in that the decorative layer (18) is designed as a metal foil, with a metal from the following group:

aluminum, high-grade steel, brass, titanium, tantalum, tungsten, chromium, indium.

19. The freezer door subassembly as claimed in claim 2, characterized in that the decorative layer (18) is designed as a nonmetallic heat-conducting foil, with a compound from the following group:

titanium nitride or titanium oxynitride or titanium oxide, boron nitride or aluminum nitride or silicon oxide or silicon oxynitride or silicon nitride or an aluminum/silicon/titanium compound (AlSiTi) or tantalum silicide (TaSi) or a titanium/tungsten compound or undoped or doped silicon or polysilicon or tungsten silicide (WoSi) or molybdenum silicide (MoSi) or amorphous silicon.

20. The freezer door subassembly as claimed in claim 2, characterized in that the seal (3) has a magnetic body (26) which cooperates with a metallic portion (27) of the doorpost (4) in the closing position of the glass door (2), the seal (3), as seen from the freezer inner space (7), being arranged so as to be offset outward to an extent such that an interspace (28) is formed adjacently to the seal (3) between the doorpost (4) and the edge portion (11) of the laminated structure (5), which interspace is filled at least partially by a profile element (29) which forms a separation between the seal (3) and the inner space (7).