EP1032792A1 - Prefabricated set for making a cooking surface - Google Patents
Prefabricated set for making a cooking surfaceInfo
- Publication number
- EP1032792A1 EP1032792A1 EP99943030A EP99943030A EP1032792A1 EP 1032792 A1 EP1032792 A1 EP 1032792A1 EP 99943030 A EP99943030 A EP 99943030A EP 99943030 A EP99943030 A EP 99943030A EP 1032792 A1 EP1032792 A1 EP 1032792A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- elastomer
- hob
- assembly according
- plate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/102—Tops, e.g. hot plates; Rings electrically heated
Definitions
- the invention relates to a prefabricated assembly, intended for the production of hobs, comprising a ceramic hob.
- Such hobs can include, among other things, heating elements such as radiant or halogen fireplaces and regulating means to vary the power of these.
- the sub-assembly formed by the plate and the frame must, on the one hand, have a good seal so that the water, for example used to clean the visible surface of the ceramic hob, does not penetrate the interior and may create a short circuit.
- the water for example used to clean the visible surface of the ceramic hob
- it is necessary to avoid any risk of fouling in the zones difficult of access and impossible to clean so as not to see the appearance of developments. germs.
- silicone glue Another function still fulfilled by silicone glue is to absorb mechanical shock. It thus avoids direct contact between the metal frame and the ceramic hob and, also, it can compensate for the expansions of the metallic frame, the ceramic hob having almost zero expansion.
- An advantageous characteristic of the silicone adhesive is to have good temperature resistance. Although silicone glue is only used in the peripheral part of the ceramic hob and therefore at a certain distance from the heating zones, this temperature resistance must be high. Thus, the periphery of the plate still undergoes a temperature rise when one or more homes are in working order. In addition, a heated container, such as a pan, can be placed on the edge of the plate and therefore subjects the frame to a high temperature.
- a last function of the silicone glue is of an aesthetic nature: at least part of the glue being deposited from above, it is important to be able to smooth it so as to give it a beautiful appearance because at least part can remain related.
- the inventors then set themselves the goal of supplying a prefabricated assembly of the type mentioned above, that is to say comprising a ceramic glass hob and a frame which allows, once assembled in the hob, the latter to have a clear interface with the work plan for which it is intended.
- the invention relates to a prefabricated assembly, intended for the production of a hob, comprising a glass ceramic hob and a frame consisting of a part extending at the periphery of the plate and a another part extending in a plane substantially vertical to the plate, characterized in that at least one of the two parts of the frame comprises an overmolding in elastomer.
- the prefabricated assembly thus proposed by the invention satisfies the problem posed.
- the overmolding in the outer peripheral part of the frame ensures a clear interface with the upper part of the worktop, in particular from a sealing point of view.
- the elastic nature of the elastomer allows the profile to match the shape of the worktop as well as possible, which can prove to be effective in particular when the latter is not plumb and / or when its surface condition is not regular.
- the frame according to the invention is preferably made of plastic. It is advantageously molded. More preferably, it is made of polymer resin resistant to temperatures of at least 180 ° C. As regards the connection between the ceramic hob and the frame, it can be chosen to mold the frame directly onto the plate instead of bonding them together with an elastomeric seal, of the silicone type.
- the frame advantageously includes holes opening through which are overmolded elastomer buttons.
- the overmolding is a profile.
- each of the two parts of the aforementioned frame advantageously comprises an elastomer profile.
- the elastomer profile of the part of the frame extending in the substantially vertical plane of the plate consists of legs, preferably having notches.
- flexible “legs” of the overmolded profile allow the hob to be perfectly immobilized in the worktop, even if the cutting thereof has not been carried out within the desired tolerances. This avoids leaving a significant clearance between the vertical walls of the frame and the work surface, clearance which can not be compensated in this case only by the presence of wedging pieces delicate to put in place.
- Another advantage provided by this variant of the invention is the guarantee of not damaging the work surface when installing the hob assembled therein.
- the elastomer profile of the part of the frame extending around the periphery of the plate preferably has a lip, which allows further avoid the risk of fouling.
- this lip participates, with the aforementioned flexible holding elements, in supporting the frame on the work surface.
- the molding elastomer according to the invention is advantageously made of silicone.
- the invention also relates to a hob incorporating a prefabricated assembly previously defined, the frame of which is fixed to a base supporting heating elements, such as radiant or halogen elements and / or at least one atmospheric gas burner and / or the minus a means of induction heating.
- a base supporting heating elements such as radiant or halogen elements and / or at least one atmospheric gas burner and / or the minus a means of induction heating.
- the invention finally relates to a method of manufacturing a prefabricated assembly according to the invention.
- the following steps are carried out: a) a molded frame is introduced into a punch of such shape that an elastomer can be injected onto the surface of at least one of the two parts of the frame; b) a ceramic glass hob is placed in the punch slightly raised relative to the molded frame; c) the assembly thus closed is closed by means of a matrix of shape at least partially complementary to the punch; d) an elastomer is injected into the channels formed by the free space between the punch and the die; e) the elastomer is polymerized; f) then the assembly thus ejected.
- a molded frame is introduced into a punch of such shape that an elastomer can be injected onto the surface of at least one of the two parts of the frame; b) a ceramic glass hob is placed in the punch slightly raised relative to the molded frame; c) the assembly thus closed is closed by means of a matrix
- the elastomer is injected and then polymerized, it no longer has to be smoothed by hand as could be the case according to the prior art, its surface condition is no longer penalizing for decorative appearance.
- by injecting the elastomer onto an already shaped frame it is possible to start from frames of various shapes and / or colors. Such varieties help to give an aesthetic appearance to the hob.
- the various shapes also make it possible to integrate, within the framework, equipment usually integrated into the plate, such as the control elements of the heating elements which, most of the time, require careful drilling of the plate.
- the frame used according to the method of the invention is preferably made of plastic.
- the elastomer used is advantageously silicone. According to a very advantageous characteristic of the process, stage e) of high frequency polymerization is carried out.
- the fact of polymerizing the elastomer according to the invention by high frequency also makes it possible to save considerable time during manufacture.
- the tool used is usually an elastomer. Therefore, the flexible contact between the tool, in particular the mold, and the various parts constituting the prefabricated assembly according to the invention does not risk altering the materials, in particular the glass ceramic constituting the hob.
- FIGS. 1 to 2e represent respectively: ⁇ FIG. 1: a hob incorporating a first prefabricated assembly conforming to the invention and placed in a work plan; ⁇ Figures 2a to 2e: the different stages of the manufacturing process of a second prefabricated assembly according to the invention.
- FIG. 1 is a sectional view showing a hob 1, produced according to the invention, integrated in a worktop 2 of a kitchen.
- This hob 1 essentially consists of a glass ceramic hob 3 and a prefabricated assembly according to the invention 4 fixed to a metal base 5, of rectangular section, by means of screws not shown.
- prefabricated assembly according to the invention replaces, at least from the point of view of the enclosure function, with a metal frame used according to the state of the art.
- a plastic frame loaded in particular with glass fibers 6, as possibly the plastics listed below constitute the reinforcement of the prefabricated assembly according to the invention.
- This frame 6 essentially comprises three parts, namely the vertical sides 61, 62, the outer peripheral part 63 which surrounds the glass ceramic cooking plate 3 while being directly in contact with it and a flat part 64 which extends substantially in the main plane. glass ceramic bush plate 3.
- This planar part 64 has openings whose function will be explained below.
- a silicone profile 7 extends over the entire periphery of the frame 6.
- This has the shape of a lip 71 for the part directly in contact with the upper part of the work surface.
- the function of this lip 71 is to provide a very clear interface between the frame 6 and the upper part of the work surface, that is to say, inter alia, a seal against liquids and food likely to come nearby.
- the curved shape of the lip 71 gives it an aesthetic appearance.
- the silicone profile 7 has, in its vertical part, tabs
- planar part 64 of the frame As for the planar part 64 of the frame, it has two circular openings 65 and a rectangular opening 66.
- silicone control buttons 67 which allow, once pressed, to trigger the operation of the heating members not shown.
- a digital display which allows viewing the programmed time and / or duration a heating cycle of at least one of the heating members. It can also indicate which is the heating element in operation if the plate is under electric voltage, the temperature of the heating element (s) ...
- a support 68 under this flat part, opposite the openings described , is encapsulated, using silicone, a support 68 on which are engraved co-producing tracks by which the electrical supply of the various organs is established.
- Figures 2a and 2e show the different successive stages of the manufacturing process of a second prefabricated assembly according to the invention.
- FIG. 2a relates to the initial step of setting up a frame molded 6 in a punch 9.
- This molded frame 6 is of a chemical nature and of shape similar to that of FIG. 1.
- FIG. 2b shows the glass-ceramic plate 3 placed in the punch 9, so as to be slightly raised relative to the frame 6 and leaves an empty space 10.
- the injection is stopped and the same material is polymerized using a high frequency technique for a time of 0.5 to 2 min, depending on the mass of silicone to be transformed.
- the die 11 is then unlocked from the punch 9 and the prefabricated assembly is ejected, as shown in FIG. 2e.
- any new plastic material in the molded frame may be suitable insofar as it resists high temperatures, typically above 250 ° C.
- the plastic of the frame according to the invention may be chosen from polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), polyacrylate (PAR), polyether sulfone (PES), polyetherimide (PEI), polyamideimlide (PAI), liquid crystal polymer (LCP), polytetrafluoroethylene (PTFE), polyetherethersulfone (PEES), polyepoxides (EP) and, optionally, polysulfone (PSF), fluoropolymer resins (FEP such as PTEFE, PFA, ETFE, etc.), polythioethersulfone (PTES), thermoplastic poyimide (TPI), cross linked polyimide (CLPI), polyetherketone (PEK), polyethermitrile (PEN), polycyclohexyleneterephthalate (PCT), polyphthalamide (PPA).
- the frame may advantageously be chosen from polyester resins (PBT), polyphenylene
- any other equivalent section which can be injected in accordance with the invention is included within the scope of the invention on the condition that characteristics analogous to silicone such as elasticity and resistance to high temperature are fulfilled.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Cookers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Induction Heating Cooking Devices (AREA)
- Baking, Grill, Roasting (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9811841A FR2783596B1 (en) | 1998-09-23 | 1998-09-23 | PREFABRICATED ASSEMBLY FOR MAKING COOKING TABLES |
FR9811841 | 1998-09-23 | ||
PCT/FR1999/002259 WO2000017579A1 (en) | 1998-09-23 | 1999-09-23 | Prefabricated set for making a cooking surface |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1032792A1 true EP1032792A1 (en) | 2000-09-06 |
EP1032792B1 EP1032792B1 (en) | 2004-06-23 |
Family
ID=9530728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99943030A Expired - Lifetime EP1032792B1 (en) | 1998-09-23 | 1999-09-23 | Prefabricated set for making a cooking surface |
Country Status (8)
Country | Link |
---|---|
US (1) | US6492623B1 (en) |
EP (1) | EP1032792B1 (en) |
JP (1) | JP3808704B2 (en) |
AU (1) | AU5631999A (en) |
DE (1) | DE69918257T2 (en) |
ES (1) | ES2222723T3 (en) |
FR (1) | FR2783596B1 (en) |
WO (1) | WO2000017579A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7842668B1 (en) | 2001-11-13 | 2010-11-30 | Genentech, Inc. | Apo-2 ligand/trail formulations |
PT1450847E (en) | 2001-11-13 | 2011-01-05 | Genentech Inc | Apo2 ligand/ trail formulations and uses thereof |
DE10350587A1 (en) * | 2003-10-30 | 2005-06-02 | BSH Bosch und Siemens Hausgeräte GmbH | Home appliance with a control bar |
DE10350588A1 (en) * | 2003-10-30 | 2005-06-02 | BSH Bosch und Siemens Hausgeräte GmbH | Home appliance with a control bar |
FR2889580B1 (en) * | 2005-08-02 | 2013-11-22 | Eurokera | COOKING PLATE, COOKING APPARATUS, AND PLATE MANUFACTURING METHOD |
US20080145595A1 (en) * | 2006-12-14 | 2008-06-19 | Pratt Charles F | Composite pedestal base assembly |
DE102007055312A1 (en) * | 2007-11-20 | 2009-05-28 | BSH Bosch und Siemens Hausgeräte GmbH | Arrangement with a hob and a worktop |
JP5244626B2 (en) * | 2009-01-21 | 2013-07-24 | 日立アプライアンス株式会社 | Cooker |
EP2366953B1 (en) * | 2010-03-18 | 2016-06-15 | Electrolux Home Products Corporation N.V. | Gas cooking appliance |
EP2615377B1 (en) * | 2012-01-13 | 2017-05-03 | Electrolux Home Products Corporation N.V. | Oven cavity and oven |
KR102024162B1 (en) * | 2017-06-28 | 2019-09-23 | 엘지전자 주식회사 | Glass composition and cooking appliance |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19637784C1 (en) * | 1996-09-17 | 1997-10-16 | Schott Glaswerke | Retainer for connection of cooking surface in section of work-top |
DE2352272C3 (en) * | 1973-10-18 | 1979-07-19 | Teroson Gmbh, 6900 Heidelberg | Heat-corrosive sealants |
US3866018A (en) * | 1974-04-01 | 1975-02-11 | Gen Electric | Molded plastic cooktop with heated glass-ceramic plate insert |
DE3104114C2 (en) * | 1981-02-06 | 1984-06-14 | Schott Glaswerke, 6500 Mainz | Holder for a plate made of glass, glass ceramic or similar material, in particular for a cooking surface |
DE3341194C2 (en) * | 1983-11-14 | 1986-08-14 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Method for producing a hob, device for carrying out the method and hob produced by means of the device |
ES2022003A6 (en) | 1990-03-28 | 1991-11-16 | Balay Sa | Connection system between the ceramic glass and the fastening frame to the top surface. |
DE19521690A1 (en) * | 1995-06-14 | 1996-12-19 | Bosch Siemens Hausgeraete | Glass ceramic trough |
FR2744201B3 (en) | 1996-01-26 | 1998-03-13 | Eurokera | CERAMIC HOB |
DE19703268C2 (en) * | 1997-01-31 | 1999-09-16 | Lkh Kunststoffwerk Gmbh & Co | Bracket for a cooktop |
-
1998
- 1998-09-23 FR FR9811841A patent/FR2783596B1/en not_active Expired - Fee Related
-
1999
- 1999-09-23 AU AU56319/99A patent/AU5631999A/en not_active Abandoned
- 1999-09-23 WO PCT/FR1999/002259 patent/WO2000017579A1/en active IP Right Grant
- 1999-09-23 EP EP99943030A patent/EP1032792B1/en not_active Expired - Lifetime
- 1999-09-23 JP JP2000571194A patent/JP3808704B2/en not_active Expired - Fee Related
- 1999-09-23 ES ES99943030T patent/ES2222723T3/en not_active Expired - Lifetime
- 1999-09-23 DE DE69918257T patent/DE69918257T2/en not_active Expired - Lifetime
- 1999-09-23 US US09/554,089 patent/US6492623B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0017579A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2000017579A1 (en) | 2000-03-30 |
US6492623B1 (en) | 2002-12-10 |
EP1032792B1 (en) | 2004-06-23 |
DE69918257D1 (en) | 2004-07-29 |
DE69918257T2 (en) | 2005-07-14 |
FR2783596A1 (en) | 2000-03-24 |
JP2002525549A (en) | 2002-08-13 |
ES2222723T3 (en) | 2005-02-01 |
AU5631999A (en) | 2000-04-10 |
JP3808704B2 (en) | 2006-08-16 |
FR2783596B1 (en) | 2001-03-09 |
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