EP0859207A2 - Etagère pour réfrigérateur - Google Patents

Etagère pour réfrigérateur Download PDF

Info

Publication number
EP0859207A2
EP0859207A2 EP97121892A EP97121892A EP0859207A2 EP 0859207 A2 EP0859207 A2 EP 0859207A2 EP 97121892 A EP97121892 A EP 97121892A EP 97121892 A EP97121892 A EP 97121892A EP 0859207 A2 EP0859207 A2 EP 0859207A2
Authority
EP
European Patent Office
Prior art keywords
glass
shelf
particular made
curvature
pane
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
EP97121892A
Other languages
German (de)
English (en)
Other versions
EP0859207A3 (fr
EP0859207B1 (fr
Inventor
Sabine Dr. Melson
Roland Dr. Leroux
Kurt Leutner
Thierry Schleiss
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.)
Schott AG
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke AG
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 Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Publication of EP0859207A2 publication Critical patent/EP0859207A2/fr
Publication of EP0859207A3 publication Critical patent/EP0859207A3/fr
Application granted granted Critical
Publication of EP0859207B1 publication Critical patent/EP0859207B1/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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • 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
    • F25D2325/00—Charging, supporting or discharging the articles to be cooled, not provided for in other groups of this subclass
    • F25D2325/022—Shelves made of glass or ceramic
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • the invention relates to refrigerator shelves, in particular made of glass or glass ceramic.
  • Refrigerator shelves are usually in the form of grids or as transparent panes shaped, the latter having the advantage that the content is more secure and that spilled solid or liquid material does not automatically go deeper lying floors dirty.
  • a spilled liquid can spread over the entire area before it overflows at the edges of the floor and drips onto the next lower surface.
  • an overflow volume i.e. a collection volume before liquid overflows create, is often also an edge protection, the edge of the pane all around comprehensive frame outstandingly formed over the end face of the edge.
  • Such an arrangement can be realized, for example, by extrusion coating with plastic will.
  • the shelf can be of any suitable, generally transparent Material. It is preferably made of glass, which is preferably tempered or from ceramic glass. The advantages of glass or glass ceramic panes as Fridge shelves are well known. Furthermore, the shape possible with these materials by simple, also known methods.
  • the invention is not restricted to disks of a certain size.
  • certain dimensions are specified for use as refrigerator shelves.
  • smaller or larger panes can also be useful.
  • Rectangular 3 mm - 4 mm thin panes with dimensions from 300 mm x 400 mm to 500 mm x 700 mm are common for refrigerator shelves.
  • the invention is also not limited to disks of a certain shape. Certainly are rectangular "panes, ie panes with a rectangular projection, are customary, but semicircular or round curved panes (for example spherical segment parts) could also be used, for example, if desired.
  • f (x, y) a 1 + a 2nd y + a 3rd y 2nd + a 4th x + ... + a 8th x 2nd y + a 9 x 2nd y 2nd
  • a 1 ... a 9 represent coefficients that can be easily determined using selected points using regression.
  • the slope should be positive in all directions, starting from the apex of the curvature (with a slope 0).
  • the above function in Cartesian coordinates must be converted into a polar coordinate function, which can easily be carried out with computer programs.
  • the slope is then through ⁇ r / ⁇ > 0 described, where ⁇ is the angle describing the deviation from the vertical.
  • a practical indication of a Total inclination "consists in determining the distance h between the apex of the curvature and the plane spanned by the corner points of the pane and in relation to the length of the straight lines (diagonal D) resulting from the connection of two diagonally opposite corner points.
  • the two diagonals will be the same length.
  • This distance h should preferably be at least 0.45% of the diagonal D ( h ⁇ 0.0045 * D ).
  • this condition will be a restrictive one in addition to the overflow volume of 100 cm 3 , while in the case of small panes this overflow volume will only be achieved in the case of stronger inclinations.
  • the distance h should preferably be 0.9% of the diagonals D ( h ⁇ 0.009 * D ) do not exceed. With such slight bevels, the bending of the edges is so small that the disk can be placed on brackets as easily as with flat disks. In addition, if the pane bulges too much, a secure position of the contents would no longer be guaranteed.
  • the arched refrigerator shelf according to the invention can represent a spherical surface cutout. However, they are any other, possibly only slightly different from that Different geometries are conceivable, for example, flattened spherical surfaces or trough-shaped surfaces. Such geometries are easy to implement.
  • V 1/3 s * h can be calculated, where s represents the area of the disk. It is clear that to achieve the desired volume of 100 cm 3, a minimum distance h is required, which varies with the area s. Even for floors that approximate the shape of a spherical surface section, the formula mentioned as an estimate of V is quite sufficient.
  • Classic bending techniques can be used to produce a refrigerator shelf that is curved according to the invention, especially from glass.
  • One possible technique is gravity lowering.
  • the glass pane is brought into a bending furnace with a horizontal conveyor. Then it is positioned with a position stamp using pneumatics.
  • the lower element usually a profile frame
  • the glass pane is placed on this element and gets its final shape at approx. 620 ° C to 660 ° C, of course depending on the glass composition.
  • Another possible technique is compression molding.
  • the invention is based on exemplary embodiments, the special case of the spherical surface cutout concern, and an illustration are made clear:
  • Figure 1 in the figure does not show a curved vault according to the invention
  • the distance h from the apex of the bulge ( ⁇ ) to the from The corner points of the plane spanned are drawn in as well as the diagonals D of equal length, along the length of which the preferred minimum distance h is defined.
  • a flat glass sheet made of soda-lime glass with the dimensions 400 mm x 300 mm x 4 mm is deformed with the method of gravity lowering to a curved glass sheet, with the height h being 2.55 mm.
  • the overflow volume V calculated according to the above formula for spherical surface sections is 102 cm 3 .
  • the necessary curvatures are so small that the V or h can be estimated by means of s and for the determination of h over D the dimensions a x b of the original flat disc can be used.
  • the preferred minimum distance h is 2.55 mm, which corresponds to an overflow volume V of 136 cm 3 .
  • the preferred minimum distance h is 2.88 mm, which corresponds to an overflow volume V of 192 cm 3 .
  • the minimum overflow volume V of 100 cm 3 is achieved at a distance h of 2.38 mm.
  • the invention provides in an incredibly simple manner, without additional constructions, a pane, in particular made of glass or ceramic, available has a sufficiently large collecting volume, which makes them ideally suited leaves for use as a refrigerator shelf.

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)
  • Joining Of Glass To Other Materials (AREA)
  • Glass Compositions (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP97121892A 1997-02-17 1997-12-12 Etagère de réfrigérateur Expired - Lifetime EP0859207B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19706183A DE19706183C2 (de) 1997-02-17 1997-02-17 Kühlschrankeinlegeboden
DE19706183 1997-02-17

Publications (3)

Publication Number Publication Date
EP0859207A2 true EP0859207A2 (fr) 1998-08-19
EP0859207A3 EP0859207A3 (fr) 1998-11-25
EP0859207B1 EP0859207B1 (fr) 2002-08-28

Family

ID=7820596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121892A Expired - Lifetime EP0859207B1 (fr) 1997-02-17 1997-12-12 Etagère de réfrigérateur

Country Status (6)

Country Link
US (1) US6113206A (fr)
EP (1) EP0859207B1 (fr)
AT (1) ATE223025T1 (fr)
CA (1) CA2229649A1 (fr)
DE (2) DE19706183C2 (fr)
ES (1) ES2181977T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2931045A1 (fr) * 2008-05-19 2009-11-20 Schott Vtf Sarl Piece en forme de plaque en verre ou en vitroceramiques, notamment tablette ou etagere
EP2587200A2 (fr) 2011-10-28 2013-05-01 Schott AG Tablette de rayonnage
US9179773B2 (en) 2008-06-27 2015-11-10 Ssw Holding Company, Inc. Spill containing refrigerator shelf assembly
US11786036B2 (en) 2008-06-27 2023-10-17 Ssw Advanced Technologies, Llc Spill containing refrigerator shelf assembly

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786562B2 (en) * 2001-08-22 2004-09-07 Engineered Glass Products Llc Refrigeration shelf and method of making the same
DE20312382U1 (de) * 2003-08-11 2003-10-16 BSH Bosch und Siemens Hausgeräte GmbH, 81669 München Kältegerät mit keramischen Ablagen
MX2007004477A (es) 2004-10-15 2008-11-04 Donnelly Corp Montaje de parrilla de refrigerador.
US8375746B2 (en) * 2007-07-16 2013-02-19 Clarion Technologies, Inc. Frameless spill-safe shelf
FR2934481B1 (fr) * 2008-07-30 2011-01-14 Saint Gobain Etagere, en particulier pour des installations refrigerees.
US20110127897A1 (en) * 2009-12-01 2011-06-02 Jonathan Nash Shelf for an appliance
US20110148267A1 (en) * 2009-12-18 2011-06-23 Mcdaniel Aaron Matthew Slumped glass spill proof shelf for an appliance and method of manufacturing a shelf

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2006827A (en) * 1934-03-29 1935-07-02 Arrow Mfg Company Inc Metal box construction
GB979552A (en) * 1961-05-12 1965-01-06 Printing Packaging & Allied Tr Improvements in or relating to photosensitive printing plates
CA1053734A (fr) * 1976-07-19 1979-05-01 Lillian Locke Plateau pivotant de refrigerateur
US4589150A (en) * 1985-05-16 1986-05-20 Augustine Sciabarassi Reversible drainboard for a corner sink installation
US4737182A (en) * 1986-12-12 1988-04-12 Ppg Industries, Inc. Glass sheet press support and alignment systems
DE9006513U1 (de) * 1990-06-08 1990-08-16 Bosch-Siemens Hausgeräte GmbH, 8000 München Kühlgerät, insbesondere Haushalts-Kühlschrank
US5564809A (en) * 1991-03-07 1996-10-15 Donnelly Technology, Inc. Encapsulated shelf for refrigerated compartments
US5297669A (en) * 1993-01-14 1994-03-29 Libbey-Owens-Ford Co. Method and apparatus for conveying curved glass sheets
US5403083A (en) * 1993-03-01 1995-04-04 Whirlpool Corporation Laterally adjustable cantilever shelf for a refrigerator
US5413035A (en) * 1993-09-13 1995-05-09 Fernandez; Eugene Steering wheel supported tray
US5615798A (en) * 1994-09-08 1997-04-01 Ropak Corporation Container incorporating liquid draining means, and related method
US5701776A (en) * 1995-06-14 1997-12-30 Custom Metalcraft, Inc. Sloped bottom tank
US5577823A (en) * 1995-07-21 1996-11-26 Whirlpool Corporation Lazy susan type pan/carriage assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2931045A1 (fr) * 2008-05-19 2009-11-20 Schott Vtf Sarl Piece en forme de plaque en verre ou en vitroceramiques, notamment tablette ou etagere
WO2009150339A3 (fr) * 2008-05-19 2010-03-25 SCHOTT VTF (Société par Actions Simplifiée) Pièce en forme de plaque en verre ou en vitrocéramique, notamment tablette ou étagère
US10827837B2 (en) 2008-06-27 2020-11-10 Ssw Holding Company, Llc Spill containing refrigerator shelf assembly
US9179773B2 (en) 2008-06-27 2015-11-10 Ssw Holding Company, Inc. Spill containing refrigerator shelf assembly
US9207012B2 (en) 2008-06-27 2015-12-08 Ssw Holding Company, Inc. Spill containing refrigerator shelf assembly
US9532649B2 (en) 2008-06-27 2017-01-03 Ssw Holding Company, Inc. Spill containing refrigerator shelf assembly
US10130176B2 (en) 2008-06-27 2018-11-20 Ssw Holding Company, Llc Spill containing refrigerator shelf assembly
US11191358B2 (en) 2008-06-27 2021-12-07 Ssw Advanced Technologies, Llc Spill containing refrigerator shelf assembly
US11786036B2 (en) 2008-06-27 2023-10-17 Ssw Advanced Technologies, Llc Spill containing refrigerator shelf assembly
US12096854B2 (en) 2008-06-27 2024-09-24 Ssw Advanced Technologies, Llc Spill containing refrigerator shelf assembly
DE102011085428A1 (de) 2011-10-28 2013-05-02 Schott Ag Einlegeboden
US10317129B2 (en) 2011-10-28 2019-06-11 Schott Ag Refrigerator shelf with overflow protection system including hydrophobic layer
EP2587200A2 (fr) 2011-10-28 2013-05-01 Schott AG Tablette de rayonnage

Also Published As

Publication number Publication date
US6113206A (en) 2000-09-05
DE59708062D1 (de) 2002-10-02
ATE223025T1 (de) 2002-09-15
DE19706183A1 (de) 1998-09-03
EP0859207A3 (fr) 1998-11-25
CA2229649A1 (fr) 1998-08-17
DE19706183C2 (de) 1999-01-14
ES2181977T3 (es) 2003-03-01
EP0859207B1 (fr) 2002-08-28

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