EP1726886A1 - Objet de fixation, spécialement pour la fixation d'un élément tubulaire dans le moufle d'un four cuisinièr - Google Patents

Objet de fixation, spécialement pour la fixation d'un élément tubulaire dans le moufle d'un four cuisinièr Download PDF

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Publication number
EP1726886A1
EP1726886A1 EP06113582A EP06113582A EP1726886A1 EP 1726886 A1 EP1726886 A1 EP 1726886A1 EP 06113582 A EP06113582 A EP 06113582A EP 06113582 A EP06113582 A EP 06113582A EP 1726886 A1 EP1726886 A1 EP 1726886A1
Authority
EP
European Patent Office
Prior art keywords
tubular element
hole
fixing device
fixing
oven
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.)
Withdrawn
Application number
EP06113582A
Other languages
German (de)
English (en)
Inventor
Enrico Franzolin
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.)
Unox SRL
Original Assignee
Unox SpA
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 Unox SpA filed Critical Unox SpA
Publication of EP1726886A1 publication Critical patent/EP1726886A1/fr
Withdrawn legal-status Critical Current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
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising

Definitions

  • the present invention relates to a fixing device, particularly for fixing a tubular element inside the muffle of a food cooking oven.
  • Currently known food cooking ovens with forced air circulation generally comprise, in the rear part of the muffle and connected thereto, a heating and air ventilation chamber.
  • Such heating and ventilation chamber is formed by the back of the muffle and by a protective wall for the heating means and for the fans, which are accommodated between the back and the wall.
  • Such ovens with forced air circulation are generally provided with one or more tubes for introducing water in the heating chamber, so that the heating and ventilation means atomize it, blowing water vapor onto the food in the cooking chamber.
  • Known tubes are constituted by a connecting hose, which the water reaches from the hydraulic connection and from the electric flow control valve.
  • the hose carries the water toward a tubular element, which is shaped so as to convey the water from the upper partition of the muffle, at which the hose is connected to the tubular element, to a region which surrounds the rotation shaft of the served fan.
  • Such tubular element runs along the wall outside the face thereof that is visible from the inside of the oven and is clearly visible when the oven is open.
  • the tubular element Proximate to the region that surrounds the fan rotation shaft, the tubular element is shaped so as to pass through the wall in a dedicated hole and discharge the water substantially in the center of the fan.
  • Such tubular element is fixed to the wall with at least one U-bolt, which is adapted to be fixed to the housing by means of a rivet or screw, or other equivalent locking element, for each of the two lateral wings of the U-bolt.
  • the tubular element in turn is fixed to at least one U-bolt by means of at least one spot weld.
  • the number of metallic U-bolts depends on the length of the tubular element, which in turn depends on the height at which the fan served by the tubular element is arranged.
  • the aim of the present invention is to provide a fixing device, particularly for fixing a tubular element inside the muffle of a food cooking oven, which is capable of obviating the drawbacks of known fixing devices.
  • an object of the present invention is to provide a fixing device which improves the visual impact of the cooking chamber of the oven in which it is used.
  • Another object of the present invention is to provide a fixing device which can be assembled easily even by an operator who lacks particular prior training.
  • Another object of the present invention is to provide a fixing device whose effectiveness and durability is at least equal to that of known types of device.
  • Another object of the present invention is to provide a fixing device which can be adopted for tubular elements of any length and transverse dimensions.
  • a further object of the present invention is to provide a fixing device which does not compromise the functionality of the tubular element to which it is applied.
  • a still further object of the present invention is to provide a fixing device particularly for fixing a tubular element inside the muffle of a food cooking oven which can be manufactured with known systems and technologies.
  • a fixing device particularly for fixing a tubular element inside the muffle of a food cooking oven, which is adapted to connect said tubular element to a support, characterized in that it is constituted by at least one self-tapping screw, which passes through a first hole which is open in said support and is adapted to engage a facing second through hole provided in said tubular element, said second hole having a smaller diameter than said first hole and being such as to allow the mechanical seal of the self-tapping screw engaged therein.
  • a fixing device particularly for fixing a tubular element inside the muffle of a food cooking oven, according to the invention, is generally designated by the reference numeral 10.
  • the device 10 is adapted for connecting a tubular element to a support.
  • the device 10 comprises, in the embodiment shown in the figures, two self-tapping screws 11.
  • Each of the screws 11 passes through a first hole 12, which is provided in the support and is adapted to engage a facing second through hole 13 provided in the tubular element.
  • the second hole 13 has a smaller diameter than the first hole 12, so as to ensure the mechanical seal of the self-tapping screw 11 engaged therein.
  • the first hole 12 and the second hole 13 are each obtained by means of a laser cutting operation.
  • Laser cutting allows to obtain the holes 12 and 13 so that they are perfectly cylindrical, a shape which allows to optimize the screwing of the screw 11 into the second hole 13 and the consequent coaxiality of the screw 11 with respect to the second hole 13.
  • the tubular element is pressed against the support and the coaxiality of the first hole 12 with the second hole 13 is also ensured.
  • the support is constituted by a protective wall 14 for the heating means and for the ventilation means which are accommodated between the back 16 and the wall 14 of a food cooking oven 17.
  • the tubular element is constituted by a tube 18, which is adapted to be fixed to the face of the wall 14 which is directed toward the inside of the cooking chamber 19 of the oven 17, as shown in Figure 1.
  • the oven 17 is shown in a configuration in which a door 19a is open.
  • the tube 18 is adapted to convey the water that arrives from a hose 20 connected thereto at an upper partition 21 of a muffle 22 which forms the cooking chamber 19 to a central region of a fan 15 of the heating and ventilation means with which the oven 17 is provided.
  • the use of the device 10 allows correct fixing of the tube 18, eliminating the use of omega-shaped U-bolts, rivets and welding operations, with considerable advantages both in terms of costs and in terms of assembly time.
  • the device 10 according to the invention is not visible inside the cooking chamber of an oven, enhancing the visual impact of said cooking chamber.
  • the device 10 does not compromise the tightness of the tube 18, although using the second hole 13 which is open into the tube 18.
  • the self-tapping screw 11 in fact applies to the second hole 13, owing to its inherent characteristics, a sealing force which is sufficient with respect to the flow-rate and operating pressure of the tube 18.
  • the device 10 also meets the strictest standards (such as for example the United States standards) in terms of hygiene of food oven cooking chambers.
  • Eliminating the rivets therefore entails also improving the hygiene of the cooking chamber.
  • the present invention provides a fixing device, particularly for fixing a tubular element inside the muffle of a food cooking oven, which improves the visual impact of the cooking chamber of the oven in which it is used.
  • the present invention provides a fixing device which can be assembled easily even by an operator who lacks particular prior training.
  • the present invention provides a fixing device whose effectiveness and durability is at least equal to that of known types of device.
  • the present invention provides a fixing device which can be adopted for tubular elements having any length and transverse dimensions.
  • the present invention provides a fixing device which does not compromise the functionality of the tubular element to which it is applied.
  • the present invention provides a fixing device, particularly for fixing a tubular element inside the muffle of a food cooking oven, which can be manufactured cheaply with known systems and technologies.
  • the materials employed may be any according to requirements and to the state of the art.
EP06113582A 2005-05-27 2006-05-05 Objet de fixation, spécialement pour la fixation d'un élément tubulaire dans le moufle d'un four cuisinièr Withdrawn EP1726886A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD20050159 ITPD20050159A1 (it) 2005-05-27 2005-05-27 Dispositivo di fissaggio particolarmente per un elemento tubolare all'interno della muffola di un forno di cottura per alimenti

Publications (1)

Publication Number Publication Date
EP1726886A1 true EP1726886A1 (fr) 2006-11-29

Family

ID=36933338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06113582A Withdrawn EP1726886A1 (fr) 2005-05-27 2006-05-05 Objet de fixation, spécialement pour la fixation d'un élément tubulaire dans le moufle d'un four cuisinièr

Country Status (2)

Country Link
EP (1) EP1726886A1 (fr)
IT (1) ITPD20050159A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132500B2 (en) 2008-04-04 2012-03-13 Illinois Tool Works Inc. Humidity controlled food warming cabinet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167016A (en) * 1965-11-03 1969-10-15 Parker Kalon Corp Improvements in or relating to Screw Fastener Assemblies
US3550579A (en) * 1968-01-24 1970-12-29 United Gas Industries Ltd Flue seal for gas appliance
DE3517559A1 (de) * 1985-02-26 1986-11-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Back- und bratofen
EP0640310A1 (fr) * 1993-08-05 1995-03-01 ANGELO PO GRANDI CUCINE S.p.A. Four à convection et vapeur pour aliments
US5619983A (en) * 1995-05-05 1997-04-15 Middleby Marshall, Inc. Combination convection steamer oven
GB2338289A (en) * 1997-06-16 1999-12-15 Taylor & Portway Limited A housing for an exhaust fan
DE102005041258A1 (de) * 2004-09-09 2006-04-13 BSH Bosch und Siemens Hausgeräte GmbH Dampfgargerät

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167016A (en) * 1965-11-03 1969-10-15 Parker Kalon Corp Improvements in or relating to Screw Fastener Assemblies
US3550579A (en) * 1968-01-24 1970-12-29 United Gas Industries Ltd Flue seal for gas appliance
DE3517559A1 (de) * 1985-02-26 1986-11-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Back- und bratofen
EP0640310A1 (fr) * 1993-08-05 1995-03-01 ANGELO PO GRANDI CUCINE S.p.A. Four à convection et vapeur pour aliments
US5619983A (en) * 1995-05-05 1997-04-15 Middleby Marshall, Inc. Combination convection steamer oven
GB2338289A (en) * 1997-06-16 1999-12-15 Taylor & Portway Limited A housing for an exhaust fan
DE102005041258A1 (de) * 2004-09-09 2006-04-13 BSH Bosch und Siemens Hausgeräte GmbH Dampfgargerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132500B2 (en) 2008-04-04 2012-03-13 Illinois Tool Works Inc. Humidity controlled food warming cabinet

Also Published As

Publication number Publication date
ITPD20050159A1 (it) 2006-11-28

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