WO2010030733A1 - Industrial oven - Google Patents

Industrial oven Download PDF

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Publication number
WO2010030733A1
WO2010030733A1 PCT/US2009/056449 US2009056449W WO2010030733A1 WO 2010030733 A1 WO2010030733 A1 WO 2010030733A1 US 2009056449 W US2009056449 W US 2009056449W WO 2010030733 A1 WO2010030733 A1 WO 2010030733A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
opening
industrial oven
disks
oven according
Prior art date
Application number
PCT/US2009/056449
Other languages
French (fr)
Inventor
Alessandro Aiello
Gianluca Spaggiari
Original Assignee
Premark Feg L.L.C.
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 Premark Feg L.L.C. filed Critical Premark Feg L.L.C.
Publication of WO2010030733A1 publication Critical patent/WO2010030733A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A21BAKING; EDIBLE DOUGHS
    • A21BBAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B3/00Parts or accessories of ovens
    • A21B3/02Doors; Flap gates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/02Doors specially adapted for stoves or ranges
    • F24C15/04Doors specially adapted for stoves or ranges with transparent panels

Definitions

  • the present invention relates to an industrial oven.
  • industrial ovens provided with a plurality of cooking systems, such as microwave, electric resistor, hot air flow systems, etc., comprise a box-like casing, within which a cooking cavity is obtained, and a sealing door of the cooking cavity opening.
  • an industrial oven is provided according to the features claimed in claim 1.
  • figure 1 is a partial, partially sectioned view of an industrial oven made according to the dictates of the present invention
  • figure 2 is a perspective view of a door of the oven in figure 1
  • figure 3 is a perspective view of a first part of the door illustrated in figure 2, with parts removed
  • figure 4 is a perspective view of a second part of the door illustrated in figure 2, with parts removed.
  • Oven 1 indicates as a whole an industrial oven provided with a plurality of cooking systems, such as microwave, electric resistor, hot air flow system, etc.
  • Oven 1 comprises a box-like casing 2, in which a cooking cavity 3 having an inlet opening 4 is defined.
  • Oven 1 further comprises a sealing door 5 of the opening 4.
  • Door 5 comprises an inner door 6 provided with a guiding device 9, which engages the opening 4 in the closing position, and an outer door 7 which supports the inner door 6 by means of hinge means 8 and which is hinged by means of means 11 (of known type) onto a front panel 12 of the casing 2.
  • the outer door 7 comprises a frame 13 with a rectangular development which supports a central plate 14 made of transparent material.
  • the frame 13 comprises an upper side 15, a lower side 16 and two lateral sides 17a and 17b, of which side 17b is hinged by the means 11 to the panel 12 of the casing 2 to be able to rotate around a vertical axis.
  • the inner door 6 comprises a frame 18 with a rectangular development which supports a central plate 21 made of transparent material.
  • the frame 18 comprises an upper side 22, a lower side 23 and two lateral sides 24a and 24b, of which side 24b, parallel to and corresponding with side 17b, is hinged by the means 8 to the side 17b of the outer door 7, to be able to rotate around a vertical axis too.
  • the guiding device 9 is obtained on the inner face of the frame 18 of the door 6.
  • the guiding device 9 comprises four disks 26 fixed by means of screws 25 close to to the vertexes defined between the sides 22, 23, 24a and 24b.
  • the disks 26 are made of elastically deformable material.
  • the guiding device 9 further comprises an annular seal 27 installed about an ideal line joining the four disks 26, wound around them.
  • the seal 27 thus has a rectangular development; the seal 27 being thinner than the disks 26.
  • Seal 27 is made of elastically deformable material and has a shorter length than that which ideally joins the four disks 26 so that the seal needs to be deformed in order to be assembled over the disks 26 and thus the assembled sealed is under tensioning conditions.
  • the disks 26 have a truncated-cone shape with the larger base at the frame 18. It is apparent that the seal 27 substantially has the same peripheral development as the opening 4 in order to obtain the sealing.
  • the means 8 comprise two respectively upper and lower "L"-shaped brackets 28.
  • the upper bracket 28 (figure 3) comprises a vertical plate 31 fixed to an inner face of the side 17b of the outer door 7 and a horizontal plate 32 which supports a first vertical threaded pin 34 by means of a bolt 33.
  • a compartment 35 is provided in the upper part of the side 24b to be adapted to accommodate a first cylindrical body 36 made of elastically deformable material and fitted onto the first pin 34.
  • the lower bracket 28 (figure 4) comprises a vertical plate 31 fixed to the inner face of the side 17b of the outer door 7 and a horizontal plate 32 which supports a second vertical threaded pin 34 by means of a bolt 33.
  • a compartment 35 is provided to be adapted to accommodate a second cylindrical body 36 made of elastically deformable material and fitted onto the second pin 34. It is worth noting that the inner diameter of the compartments 35 is larger than the outer diameter of the respective cylindrical bodies 36.
  • the inner door 6 or rather the guiding device 9 closes the opening 4, and in particular the outer part of seal 27 and disks 26 engages the inner edge of the opening 4 thus obtaining a perfect sealing.
  • the disks 26 can easily enter into the opening 4 due to their truncated- cone shape and because they are made of elastically deformable material, and the seal 27- disk 26 assembly, together with inner door 6, adapts to the inner profile of the opening 4, due to the clearance existing between the bodies 36 and the respective compartments 35 and due to the possible deformation that the bodies 36 may undergo.
  • the guiding device 9 adapts to a possible deformation of the opening 4 because the clearance existing between the bodies 36 and the respective compartments 35 and the possible deformation that the bodies 36 may undergo allow to recover a possible clearance created by the aforesaid deformations which may occur in inner door 6 and opening 4.
  • an industrial oven equipped with a inner door which adapts to the inner profile of the opening of the cooking cavity even in the presence of permanent deformations of the members forming the inner door and the opening. Therefore, also in the presence of the aforesaid deformations, a perfect sealing is obtained, which prevents the passage of both the steam and the microwaves outside the cavity, thus increasing the degree of safety of the oven.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Glass Compositions (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Electric Ovens (AREA)

Abstract

The industrial oven (1) comprises a casing (2) in which a cooking cavity (3) is defined, provided with an inlet opening (4) and a door (5) provided with an outer door (7) hinged to a panel (12) of the casing (2) and an inner door (6) which when closed by means of a device (9) thereof engages the opening (4) and which is hinged by means of a first member to the outer door (7). The hinge member (8) comprises two respectively upper and lower brackets (28) fixed to the outer door (7) and supporting a respective pin (34) onto which a body (36) accommodated in a compartment (35) obtained in the inner door (6) is fitted. The device (9) is a guiding device which adapts to a possible deformation of the opening (4) because it comprises four disks (26) made of elastically deformable material; a seal (27) adapted to engage the opening (4) when closed being installed about an ideal line joining the four disks (26).

Description

INDUSTRIAL OVEN
TECHNICAL FIELD
The present invention relates to an industrial oven.
BACKGROUND ART
It is known that industrial ovens provided with a plurality of cooking systems, such as microwave, electric resistor, hot air flow systems, etc., comprise a box-like casing, within which a cooking cavity is obtained, and a sealing door of the cooking cavity opening.
Now, one of the main problems found in these ovens consists in that a correct sealing of the opening of the cooking cavity by means of the closing door cannot be obtained over time. It is indeed known that due to the heat produced in the oven, the frame forming the opening of the cooking cavity and the frame of the door are subjected to sometimes permanent deformations (due to the thermal expansions of the various members), whereby a perfect coupling between the door and the opening of the cooking cavity cannot be obtained. It is apparent that such an imperfect coupling is detrimental to sealing, whereby both the steam and the microwaves, which may be particularly harmful for human beings, may be released.
DISCLOSURE OF INVENTION
It is the object of the present invention to provide an industrial oven which is free from the aforesaid drawbacks, i.e. which is provided with a system for achieving a perfect coupling (and thus sealing) between the door and the opening of the cooking cavity even in the presence of permanent deformations of the various elements forming the door and the aforesaid opening.
According to the present invention, an industrial oven is provided according to the features claimed in claim 1. BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will now be described with reference to the accompanying drawings, which illustrate a non-limitative embodiment thereof, in which: figure 1 is a partial, partially sectioned view of an industrial oven made according to the dictates of the present invention; figure 2 is a perspective view of a door of the oven in figure 1; figure 3 is a perspective view of a first part of the door illustrated in figure 2, with parts removed; and figure 4 is a perspective view of a second part of the door illustrated in figure 2, with parts removed.
BEST MODE FOR CARRYING OUT THE INVENTION
With reference to figures 1 and 2, numeral 1 indicates as a whole an industrial oven provided with a plurality of cooking systems, such as microwave, electric resistor, hot air flow system, etc. Oven 1 comprises a box-like casing 2, in which a cooking cavity 3 having an inlet opening 4 is defined. Oven 1 further comprises a sealing door 5 of the opening 4. Door 5 comprises an inner door 6 provided with a guiding device 9, which engages the opening 4 in the closing position, and an outer door 7 which supports the inner door 6 by means of hinge means 8 and which is hinged by means of means 11 (of known type) onto a front panel 12 of the casing 2.
With reference to figure 2, the outer door 7 comprises a frame 13 with a rectangular development which supports a central plate 14 made of transparent material. The frame 13 comprises an upper side 15, a lower side 16 and two lateral sides 17a and 17b, of which side 17b is hinged by the means 11 to the panel 12 of the casing 2 to be able to rotate around a vertical axis.
With reference to figure 2, the inner door 6 comprises a frame 18 with a rectangular development which supports a central plate 21 made of transparent material. The frame 18 comprises an upper side 22, a lower side 23 and two lateral sides 24a and 24b, of which side 24b, parallel to and corresponding with side 17b, is hinged by the means 8 to the side 17b of the outer door 7, to be able to rotate around a vertical axis too.
With reference to figures 1 and 2, the guiding device 9 is obtained on the inner face of the frame 18 of the door 6. In particular, the guiding device 9 comprises four disks 26 fixed by means of screws 25 close to to the vertexes defined between the sides 22, 23, 24a and 24b. The disks 26 are made of elastically deformable material. The guiding device 9 further comprises an annular seal 27 installed about an ideal line joining the four disks 26, wound around them. The seal 27 thus has a rectangular development; the seal 27 being thinner than the disks 26. Seal 27 is made of elastically deformable material and has a shorter length than that which ideally joins the four disks 26 so that the seal needs to be deformed in order to be assembled over the disks 26 and thus the assembled sealed is under tensioning conditions. It is worth noting that the disks 26 have a truncated-cone shape with the larger base at the frame 18. It is apparent that the seal 27 substantially has the same peripheral development as the opening 4 in order to obtain the sealing.
With reference to figures 3 and 4, the means 8 comprise two respectively upper and lower "L"-shaped brackets 28. The upper bracket 28 (figure 3) comprises a vertical plate 31 fixed to an inner face of the side 17b of the outer door 7 and a horizontal plate 32 which supports a first vertical threaded pin 34 by means of a bolt 33. In the upper part of the side 24b, a compartment 35 is provided to be adapted to accommodate a first cylindrical body 36 made of elastically deformable material and fitted onto the first pin 34. Similarly, the lower bracket 28 (figure 4) comprises a vertical plate 31 fixed to the inner face of the side 17b of the outer door 7 and a horizontal plate 32 which supports a second vertical threaded pin 34 by means of a bolt 33. In the lower part of the side 24b, a compartment 35 is provided to be adapted to accommodate a second cylindrical body 36 made of elastically deformable material and fitted onto the second pin 34. It is worth noting that the inner diameter of the compartments 35 is larger than the outer diameter of the respective cylindrical bodies 36. In use, as shown in figure 1, the inner door 6 or rather the guiding device 9 closes the opening 4, and in particular the outer part of seal 27 and disks 26 engages the inner edge of the opening 4 thus obtaining a perfect sealing. In the case of deformations of frame 18 and/or opening 4, the disks 26 can easily enter into the opening 4 due to their truncated- cone shape and because they are made of elastically deformable material, and the seal 27- disk 26 assembly, together with inner door 6, adapts to the inner profile of the opening 4, due to the clearance existing between the bodies 36 and the respective compartments 35 and due to the possible deformation that the bodies 36 may undergo. In essence, the guiding device 9 adapts to a possible deformation of the opening 4 because the clearance existing between the bodies 36 and the respective compartments 35 and the possible deformation that the bodies 36 may undergo allow to recover a possible clearance created by the aforesaid deformations which may occur in inner door 6 and opening 4.
The advantages achieved by the present invention are apparent from the above description.
In particular, there is provided an industrial oven equipped with a inner door which adapts to the inner profile of the opening of the cooking cavity even in the presence of permanent deformations of the members forming the inner door and the opening. Therefore, also in the presence of the aforesaid deformations, a perfect sealing is obtained, which prevents the passage of both the steam and the microwaves outside the cavity, thus increasing the degree of safety of the oven.
It is finally apparent that changes and variants may be made to the industrial oven 1 described and shown herein without departing from the scope of protection of the present invention.

Claims

1. An industrial oven including: a box-like casing (2) wherein a cooking cavity (3) provided with an inlet opening (4) is defined; a door (5) having an inner door (6) which in the closing position by means of a guiding device (9) thereof engages said opening (4) and an outer door (7) which supports, by means of first hinge means (8), said inner door (6) and which is hinged, by means of second hinge means (11), to a front panel (12) of said casing (2); characterized in that said first hinge means (8) include two upper and lower brackets (28), respectively, fixed to said outer door (7) and supporting a respective pin (34) onto which a body (36) is fitted and accommodated in a compartment (35) obtained in said inner door (6), and characterized in that said guiding device (9) includes four disks fixed onto the inner face of said inner door (6) and made of elastically deformable material; a seal (27) adapted to engage said opening (4) in the closing position being installed about an ideal line which joins said four disks (26).
2. An industrial oven according to claim 1, characterized in that said body (36) is made of elastically deformable material.
3. An industrial oven according to claim 1 and/or 2, characterized in that said body (36) has a cylindrical shape.
4. An industrial oven according to claim 3, characterized in that said compartment (35) has a cylindrical shape and displays an internal diameter which is larger than the external diameter of said body (36).
5. An industrial oven according to anyone of the preceding claims, characterized in that said bracket (28) is "L"-shaped and therefore includes a vertical plate (31) fixed to said outer door (7) and a horizontal plate (32) which supports said vertical pin (34).
6. An industrial oven according to anyone of the preceding claims, characterized in that the peripheral development of said seal (27) is essentially equal to that of said opening (4).
7. An industrial oven according to anyone of the preceding claims, characterized in that said disks (26) have a truncated-cone shape with the larger base at the internal face of said inner door (6).
8. An industrial oven according to anyone of the preceding claims, characterized in that the thickness of said seal (27) is lower than the thickness of said disks (26).
PCT/US2009/056449 2008-09-12 2009-09-10 Industrial oven WO2010030733A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2008A000557 2008-09-12
IT000557A ITBO20080557A1 (en) 2008-09-12 2008-09-12 INDUSTRIAL OVEN

Publications (1)

Publication Number Publication Date
WO2010030733A1 true WO2010030733A1 (en) 2010-03-18

Family

ID=40637879

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/056449 WO2010030733A1 (en) 2008-09-12 2009-09-10 Industrial oven

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IT (1) ITBO20080557A1 (en)
WO (1) WO2010030733A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2394693R1 (en) * 2010-11-17 2013-02-25 Bsh Electrodomesticos Espana Home Appliance Device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311946A (en) * 1964-06-19 1967-04-04 Gen Erie Corp Spring hinge
US3386125A (en) * 1965-10-14 1968-06-04 Emhart Corp Door bumper
US4186476A (en) * 1978-09-13 1980-02-05 General Motors Corporation Method for precise fitting of motor vehicle front end sheet metal
US5732614A (en) * 1996-05-20 1998-03-31 Delaware Capital Formation, Inc. Food processing apparatus
US20080029078A1 (en) * 2006-08-04 2008-02-07 Electorlux Professional S.P.A. Cooking Oven with Anti-Condensation Door

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833849C (en) * 1950-06-20 1952-03-13 Koegel & Kunzmann For roasting and baking ovens, especially for kitchen stoves to be used double doors
DE1042212B (en) * 1955-01-12 1958-10-30 Krefft A G W Equipment on double doors of baking and roasting ovens, in particular baking and roasting ovens of kitchen stoves
BE704717A (en) * 1967-10-05 1968-02-15
FR2639097A1 (en) * 1988-11-17 1990-05-18 Bourgeois Ste Coop Production DOUBLE DOOR OVEN
IT1265573B1 (en) * 1993-09-17 1996-11-22 Zanussi Grandi Impianti Spa FOOD COOKING OVEN WITH PERFECT DOOR

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311946A (en) * 1964-06-19 1967-04-04 Gen Erie Corp Spring hinge
US3386125A (en) * 1965-10-14 1968-06-04 Emhart Corp Door bumper
US4186476A (en) * 1978-09-13 1980-02-05 General Motors Corporation Method for precise fitting of motor vehicle front end sheet metal
US5732614A (en) * 1996-05-20 1998-03-31 Delaware Capital Formation, Inc. Food processing apparatus
US20080029078A1 (en) * 2006-08-04 2008-02-07 Electorlux Professional S.P.A. Cooking Oven with Anti-Condensation Door

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2394693R1 (en) * 2010-11-17 2013-02-25 Bsh Electrodomesticos Espana Home Appliance Device

Also Published As

Publication number Publication date
ITBO20080557A1 (en) 2010-03-13

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