EP0277098A2 - Geschlossener oder offener Rahmen für eine Backofentürdichtung aus Elastomermaterial - Google Patents

Geschlossener oder offener Rahmen für eine Backofentürdichtung aus Elastomermaterial Download PDF

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Publication number
EP0277098A2
EP0277098A2 EP88830024A EP88830024A EP0277098A2 EP 0277098 A2 EP0277098 A2 EP 0277098A2 EP 88830024 A EP88830024 A EP 88830024A EP 88830024 A EP88830024 A EP 88830024A EP 0277098 A2 EP0277098 A2 EP 0277098A2
Authority
EP
European Patent Office
Prior art keywords
profile
frame
inserts
gasket
gasket according
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
EP88830024A
Other languages
English (en)
French (fr)
Other versions
EP0277098B1 (de
EP0277098A3 (en
Inventor
Luigi Bocca
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.)
GIAT Srl
Original Assignee
GIAT Srl
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26327580&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0277098(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from IT2056387U external-priority patent/IT209842Z2/it
Priority claimed from IT2177887U external-priority patent/IT210452Z2/it
Application filed by GIAT Srl filed Critical GIAT Srl
Priority to AT88830024T priority Critical patent/ATE75534T1/de
Publication of EP0277098A2 publication Critical patent/EP0277098A2/de
Publication of EP0277098A3 publication Critical patent/EP0277098A3/en
Application granted granted Critical
Publication of EP0277098B1 publication Critical patent/EP0277098B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/021—Doors specially adapted for stoves or ranges sealings for doors or transparent panel

Definitions

  • the present invention relates to an improved gasket of elastomer material to be particularly used between a cooking oven opening and the associate door, being in the form of a three-side open frame or of a four-side closed frame.
  • gaskets may be integrally moulded, with corners already formed, but at so high costs that cannot be accepted by oven manufacturers.
  • a gasket of the above-mentioned type which is radiused near the corners by metal coupling, possibly asymmetric L-shaped inserts, but preferably all of the same shape as of an elongated plate suitable to be very easily and readily mounted onto plane surfaces provided with spaced apart holes, by means of coupling points preferably located at the bent joint zones with possible additional fastening points generally located along the rectilinear lenghts of the gasket to obtain a positive peripheral sealing.
  • the gasket of the invention formed of a tubular profile, particularly of silicone rubber, having a continuous, frontally protruding peripheral flange, with a possible single butt joint, is characte­rized by metal coupling inserts for engagement under stretch in associate holes provided at the abutment surface, said coupling inserts being located at the inside of the tubular profile from which they project outwardly, possibly through slots formed by material removal at the rear side of said profile, with hooked tabs or protruding resilient prongs.
  • the corresponding L-shaped coupling insert has asymmetric legs, with the longer one provided at the junction side, and in this case, to ensure the gasket being fastened also orthogonally to the abutment surface, said inserts are formed of rectilinear plates, provided with spring-­like elements for engagement into said holes and passing through said slots.
  • each one of the free ends is fixed to the abutment surface by means of coupling inserts which longitudinally project from the inside of the tubular profile.
  • said insert members are all of the same type, whichever is their position along the gasket, being formed of an elongated plate to be inserted within the tubular profile and provided at one end with a hooked tab projecting to the outside of the profile.
  • a tubular element 1 of elastomer material preferably silicone rubber
  • two parallel longitudinal ribs 3 are preferably provided having the purpose of ensuring a more efficient tightness of the gasket onto the surface of the stationary abutment zone, particularly the front portion of an oven 14 as represented in Fig. 6, while flange 4 is useful for the sealing with the mobile portion surface, particularly the oven door 15.
  • the flange 4 will be directed no matter either to be convergent torwards the oven inside or diverging outwardly. In the first instance a better tightness will be obtained as the flange works under pressure, while in the second one the gasket can be considered as "self-cleaning", since the upper side has the func­tion of a gutter to prevent possible dirty or fluids from entering the sealed opening, and the lower side, if any, has the opposite function of helping possible dirty or fluids to drops therefrom.
  • gasket frame is formed of a single profile joined at any point whichever along its perime­ter there is no discontinuity of the sealing at the critical areas located at the bent corners.
  • the gasket frame is fastened to the surface 14 by means of metal inserts or fits of various type, all provided with a protruding coupling member 9 to be fitted into associate holes 12, 13 formed in the abutment surface 14.
  • a profile stretch, of resilient character which is preferably established, is obtained by properly arranging the center to center distance between holes 12 of the corner zones and 13 along the longitudinal portions, and designing slightly shorter such a distance at the locations corresponding to the frame fastening. This stretch can be different from a length to another according to the distance between the fastening points, their placement and orientation.
  • corner-radiusing insert members 5 which are L-shaped (see Fig. 3a) and provided with hook 9 for fitting in holes 12, and metal plate inserts 8 with spring-like elements 9 ⁇ for insertion in holes 13. Both these shapes of insert member are accommodated into the tubular profile 1 through slots 11 formed by removal of material on the side of the profile opposite to flange 4, at the planar area com­prised between the two possible longitudinal ribs 3.
  • the distance between slots 11 is a function of the space between holes 12, 13 and the desired stretch, as stated above.
  • Their shape will be such as to allow the stretched fitting of the inserts when considering the resilient mechanical features of the elastomer material adopted and the size of the members themselves to be inserted.
  • the metallic parts could be bonded to the profile by a suitable adhesive.
  • the butt joint to have the closed profile of Fig. 1 may be formed at any location and, if in proximity of a corner, according to the invention a bent member 6 (Fig. 3b) with an elongated leg is advantageously used.
  • the longer leg of insert member 6 projects from one end of the profile to which the other end is joined for causing the frame to close itself.
  • Bonding is provided by a suitable adhesive, especially silicone-based, as well as by the metal insert being fitted to the profile inner walls, and mechanical resistance result­ing from the portion of adhesive mass polymerized in the gaps formed between some notches 10 which are provided on the longer leg of member 6 and the inner walls of profile.
  • the open-shaped or three-side frame (Fig. 2) is obtained making similarly use of only two bent coupling inserts 5, of two insert members 8 (Figs. 5, 5a) and possibly, to improve the fastening in a perpen­dicular direction, of some members 8.
  • the coupling insert 7 is fitted with its elongated portion into cavity 2 of the tubular profile 1 from which it protru­des with a hooked tab 9a which, contrary to the coupl­ing hooks 9 associate to members 5 and 6, extends longitudinally while remaining on the same plane of the insert member with no need of slots 11.
  • only one shape of metal coupling inserts may be required, without any need of forming on the tubular profile elongated slots by means of material removal, but only holes for passing therethrough the protruding flanges of these inserts.
  • a tubular gasket frame 1 of the type illustrated in the preceding figures is fastened at its position by means of metal insert members 209, one of which is shown in Fig. 9, all identi­cal irrespective of the location, along a longitudinal or corner length, occupied on the gasket.
  • two end insert members 20 are respectively fitted at the two open ends of profile 1 by threading elongated plate 21 into cavity 2 of the profile, from which a hooked tab 22 protrudes outwardly for engagement into associate holes provided about the oven opening.
  • each of the two corner regions 25, 25 ⁇ it is sufficient to fit two insert members into the respective radiusing portions of connection to the horizontal and vertical rectilinear portion of profile 1, in order that the latter freely arranges at the corner region with the most appropriate bending radius, without any strain.
  • the rectilinear plate portion 21 will be inserted within the profile 1, thus being housed in the cavity 2 passing through a suitable hole 27, so that the hooked portion 22 will be adjacent to the bent portion of the frame and defines only those loca­tions thereof which are of radiused connection with the longitudinal portions and will be fastened to the respective holes on the sheet iron.
  • this gasket embodiment provides the additional, important advantage that it can be mounted with flange 3 directed no matter whether towards inside or outside of the oven, at choice of the user, without any restriction as to the radius or bending pattern at the corners. It has been observed that at the corner zones the gasket follows the desired curve pattern in an absolutely free manner with the only limitation given by the flexibility degree of the tubular profile 1.
  • the frame gasket is of a single piece and there is only one butt joint with possible rubber-metal contact. Finally this gasket can be easily and readily mounted, as well as removed from its seat with likewise easiness and rapidity to be cleaned, thus ensuring very good hygienic conditions in addition to an ever efficient tightness.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
EP19880830024 1987-01-21 1988-01-20 Geschlossener oder offener Rahmen für eine Backofentürdichtung aus Elastomermaterial Expired EP0277098B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88830024T ATE75534T1 (de) 1987-01-21 1988-01-20 Geschlossener oder offener rahmen fuer eine backofentuerdichtung aus elastomermaterial.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2056387U 1987-01-21
IT2056387U IT209842Z2 (it) 1987-01-21 1987-01-21 Cornice raccordata di tenuta in elastomero, in particolare guarnizioni per porte di forni di cottura.
IT2177887U 1987-06-11
IT2177887U IT210452Z2 (it) 1987-06-11 1987-06-11 Guarnizione perfezionata a cornice chiusa o aperta in materiale elastomero per porte di forni di cottura.

Publications (3)

Publication Number Publication Date
EP0277098A2 true EP0277098A2 (de) 1988-08-03
EP0277098A3 EP0277098A3 (en) 1988-12-28
EP0277098B1 EP0277098B1 (de) 1992-04-29

Family

ID=26327580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880830024 Expired EP0277098B1 (de) 1987-01-21 1988-01-20 Geschlossener oder offener Rahmen für eine Backofentürdichtung aus Elastomermaterial

Country Status (3)

Country Link
EP (1) EP0277098B1 (de)
DE (1) DE3870467D1 (de)
ES (1) ES2030899T3 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730541A1 (fr) * 1995-02-10 1996-08-14 Gessil Ensemble de jointoiement a plat
EP0757209A1 (de) 1995-08-04 1997-02-05 POSA S.p.A. Dichtung aus Elastomer, insbesondere für Backofentür
EP0851177A1 (de) 1996-12-18 1998-07-01 POSA S.p.A. Dichtung aus Elastomer, insbesondere für Backofentür
EP0859196A1 (de) * 1997-02-12 1998-08-19 Siliconas Silam, S.A. Rahmenförmige Dichtung aus elastomerem Material, insbesondere für Ofentüren
EP0992740A1 (de) 1998-10-07 2000-04-12 POSA S.p.A. Dichtung aus Elastomer für Backofen
WO2001029485A1 (en) 1999-10-21 2001-04-26 G.I.A.T. S.P.A. Elastomeric sealing gasket, particularly for doors of cooking domestic ovens or household appliances in general
WO2001063181A1 (en) 2000-02-22 2001-08-30 G.I.A.T. S.P.A. Counter-door frame with gasket for domestic cooking ovens
EP1591727A1 (de) 2004-04-28 2005-11-02 REHAU AG + Co Dichtungseinrichtung
WO2006003217A1 (de) * 2004-07-07 2006-01-12 BSH Bosch und Siemens Hausgeräte GmbH Backofen mit einer backofentürdichtung
WO2008003708A2 (en) * 2006-07-04 2008-01-10 Arcelik Anonim Sirketi An oven

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131009C2 (de) * 2001-06-27 2003-07-03 Bsh Bosch Siemens Hausgeraete Haushaltsgerät, insbesondere Backofen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106974A (en) * 1981-10-06 1983-04-20 Silicone Altimex Ltd Door seal
GB2113827A (en) * 1982-01-23 1983-08-10 Silicone Fabrications Limited Stretch gaskets
FR2553170A1 (fr) * 1983-10-11 1985-04-12 Gerland Joint d'etancheite en elastomere constitue d'une seule longueur de profile
DE3509928A1 (de) * 1985-03-19 1986-09-25 Bosch-Siemens Hausgeräte GmbH, 8000 München Elastische dichtung fuer ein, eine tuer aufweisendes hausgeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106974A (en) * 1981-10-06 1983-04-20 Silicone Altimex Ltd Door seal
GB2113827A (en) * 1982-01-23 1983-08-10 Silicone Fabrications Limited Stretch gaskets
FR2553170A1 (fr) * 1983-10-11 1985-04-12 Gerland Joint d'etancheite en elastomere constitue d'une seule longueur de profile
DE3509928A1 (de) * 1985-03-19 1986-09-25 Bosch-Siemens Hausgeräte GmbH, 8000 München Elastische dichtung fuer ein, eine tuer aufweisendes hausgeraet

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730541A1 (fr) * 1995-02-10 1996-08-14 Gessil Ensemble de jointoiement a plat
ES2139480A1 (es) * 1995-02-10 2000-02-01 Gessil Sa Conjunto de conexion encajada enrasada.
EP0757209A1 (de) 1995-08-04 1997-02-05 POSA S.p.A. Dichtung aus Elastomer, insbesondere für Backofentür
US5709390A (en) * 1995-08-04 1998-01-20 Posa S.P.A. Elastomeric sealing gasket for cooking oven doors
EP0851177A1 (de) 1996-12-18 1998-07-01 POSA S.p.A. Dichtung aus Elastomer, insbesondere für Backofentür
EP0859196A1 (de) * 1997-02-12 1998-08-19 Siliconas Silam, S.A. Rahmenförmige Dichtung aus elastomerem Material, insbesondere für Ofentüren
EP0992740A1 (de) 1998-10-07 2000-04-12 POSA S.p.A. Dichtung aus Elastomer für Backofen
WO2001029485A1 (en) 1999-10-21 2001-04-26 G.I.A.T. S.P.A. Elastomeric sealing gasket, particularly for doors of cooking domestic ovens or household appliances in general
WO2001063181A1 (en) 2000-02-22 2001-08-30 G.I.A.T. S.P.A. Counter-door frame with gasket for domestic cooking ovens
EP1591727A1 (de) 2004-04-28 2005-11-02 REHAU AG + Co Dichtungseinrichtung
WO2006003217A1 (de) * 2004-07-07 2006-01-12 BSH Bosch und Siemens Hausgeräte GmbH Backofen mit einer backofentürdichtung
WO2008003708A2 (en) * 2006-07-04 2008-01-10 Arcelik Anonim Sirketi An oven
WO2008003708A3 (en) * 2006-07-04 2008-05-08 Arcelik As An oven

Also Published As

Publication number Publication date
ES2030899T3 (es) 1992-11-16
EP0277098B1 (de) 1992-04-29
EP0277098A3 (en) 1988-12-28
DE3870467D1 (en) 1992-06-04

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