EP0519780A1 - Entlüftungsrost und Lüftungselement mit solchem Rost - Google Patents

Entlüftungsrost und Lüftungselement mit solchem Rost Download PDF

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Publication number
EP0519780A1
EP0519780A1 EP92401561A EP92401561A EP0519780A1 EP 0519780 A1 EP0519780 A1 EP 0519780A1 EP 92401561 A EP92401561 A EP 92401561A EP 92401561 A EP92401561 A EP 92401561A EP 0519780 A1 EP0519780 A1 EP 0519780A1
Authority
EP
European Patent Office
Prior art keywords
plate
ventilation
water
sheet
openings
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
EP92401561A
Other languages
English (en)
French (fr)
Other versions
EP0519780B1 (de
Inventor
Patrick Blosseville
Claude Dubrac
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.)
Umicore NV SA
Original Assignee
Union Miniere NV SA
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 Union Miniere NV SA filed Critical Union Miniere NV SA
Publication of EP0519780A1 publication Critical patent/EP0519780A1/de
Application granted granted Critical
Publication of EP0519780B1 publication Critical patent/EP0519780B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/17—Ventilation of roof coverings not otherwise provided for
    • E04D13/178—Ventilation of roof coverings not otherwise provided for on the eaves of the roof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/17—Ventilation of roof coverings not otherwise provided for

Definitions

  • the present invention relates to a ventilation grille intended to be interposed between an interior space and an exterior atmosphere capable of being subjected to projections of water or snow from bad weather, and comprising a plate or sheet in which are formed openings of generally elongated rectangular shape, separated by elongated solid intervals of the plate or sheet, each rectangular opening being covered towards the outside by a rectangular trigger guard placed at a distance d from the surface of the plate which is clearly less than the width of the openings rectangular.
  • the invention also relates to ventilation elements comprising such ventilation grilles.
  • Certain ventilation grilles in particular those which are placed in places subject to bad weather, for example those which are envisaged on the roofs of buildings, must allow the passage to air flows in natural circulation not pulsed on relatively important sections without allowing water to enter the interior of buildings during heavy rain.
  • These conditions for stopping bad weather are often more restrictive with regard to powdery snow than with respect to rain. Indeed, the heavy rains do not last and it is possible to drain the water that has passed through the grid during a heavy rain, while the snow can pass for several days in a row in powder form on a roof and come accumulate, after passing through the ventilation grille, in a limited area inside the building and melt in this accumulation area, degrading the installations placed below.
  • the present invention provides a ventilation grid which, while leaving free a significant passage of air, repels water projections such as those of heavy rain, and opposes the crossing of sticky or powdery snow.
  • said distance d from the surface of the plate is between 1 and 5 mm, preferably between 1 and 3 mm, to delimit a pair of lateral ventilation openings capable of opposing crossing even powdery snow
  • the trigger guard is connected in all directions to the plate at each of its ends, in a progressive manner, by a connection part of general shape inclined relative to the plate to better bounce the projections of water and snow and the longitudinal axis of each of the bridges is oriented to come into service substantially in the direction of flow by gravity of the water on the plate, all of the bridges being arranged so as to form , with said full elongated intervals, a substantially continuous front closure capable of bouncing and flowing towards the discharge the projections of water and / or snow directed onto the plate or sheet.
  • the elongated rectangular openings are arranged parallel to one another and delimit between them elongated solid rectangular intervals, or else the rectangular openings are arranged on the plate or sheet in a network of parallel lines and columns between they and each have a length of between 20 and 100 mm and a width of between 10 and 20 mm, suitable for limiting the crossing of water and snow projections.
  • the generally rectangular openings are formed by pushing out the rectangular trigger guard outward bounded by two parallel slots forming the parallel long side faces of the trigger guard, while the two ends of the trigger guard thus formed remain integral with the sheet.
  • the inclined connection part at each end of the trigger guard is rounded, in the direction of the width of the trigger guard, in the shape of a bow gradually coming to project above the plate or sheet.
  • the elongated full intervals between the openings have a hollow groove longitudinally capable of limiting the discharge into the rectangular openings, of the water which flows over these solid intervals.
  • the bridges each have, in their part located at the distance d from the plate or sheet, at least one projecting longitudinal molding or rib capable, on the one hand, of facilitating the lateral rebound of the drops of water which strike the trigger guard and, on the other hand, to stiffen the central part of said trigger guard.
  • the longitudinal molding is preferably formed by pushing out the sheet metal constituting the trigger guard.
  • the ventilation elements for building cover comprising an opening for communication between the interior of the building and the outside atmosphere are characterized in that the opening is closed with respect to water and snow projections from bad weather by a ventilation grille of the type described and the bridges of which are oriented longitudinally in the direction of flow of the water.
  • the grid is preferably arranged projecting from an upper sheet fixed to a base plate placed on a roof and the upper sheet carrying the grid is folded at one of its ends, a short distance from the base plate, to spare a passage for ventilation and evacuation of water by gravity.
  • FIGS 1 and 2 there is shown a longitudinal sheet metal ventilation element 1 provided with a row of lateral ventilation openings 2 arranged in pairs 2a, 2b on either side of a trigger guard 4. These openings in fact leave a cutout 3 of generally rectangular shape formed through the sheet 1 and which is covered frontally by the trigger guard 4 of generally rectangular shape.
  • the trigger guard 4 which has a generally planar surface is placed at a distance d from the general surface 1a of the sheet which is clearly less than the width l of the openings. This distance d is between 1 and 5 mm, the smallest dimensions making it possible to retain powdery snow well.
  • the trigger guard 4 is progressively connected to the plate 1 at each of its ends by a connecting part 4a, 4b, inclined relative to the plate and which is rounded in the width direction of the bow-shaped trigger guard 5 , 6 in the zone of connection with the sheet 1.
  • the connection parts 4a, 4b thus start from the end of the cutout 3 with a central crown on the bow part 5, 6 and each continue by projecting from the surface 1a of the sheet 1 by the connection portion to the trigger guard 4 which is progressively less curved in the center, without however completely losing its curved shape which causes the rebound favorable to the evacuation, projections of the water droplets and of the grains powder snow.
  • the bridges 4 and the full rectangular gaps 7 between the openings 3 and the sheet 1 are oriented longitudinally in the direction of flow of the water over the plate 1.
  • the plate 1 is arranged vertically and the bridges 4 are oriented vertically with their longitudinal axis 4e placed lengthwise, as shown in FIG. 2, where the ventilation plate 1 proper in sheet metal is extended in the mass of the sheet metal by a hooking part 8.
  • the bridges 4 are each provided in their part located at the distance d from the surface 1a of the sheet 1, with a longitudinal rib 9 provided at each end with a part tapered in the shape of a bow 10 and 11 to better repel water and powdery snow.
  • the ribs or moldings 9 also serve to make the bridge 4 more rigid and are generally formed directly by pushing back the plate of the trigger guard, or else when the ventilation grid is molded in a single piece of plastic, during the molding of the trigger guard 4.
  • the openings rectangular 3 of the sheet 1, each covered with a trigger guard 4 providing pairs of lateral ventilation passages 2a, 2b, are arranged parallel to each other by providing between them identical rectangular intervals 7 planes and regularly distributed to constitute, for example, a roof ventilation line, as shown in section in Figure 2.
  • a roof ventilation element sometimes also called "cat door", although it no longer allows the passage of cats, consists of an upper sheet 12, preferably of resistant metal corrosion such as zinc and whose edge edges 13 are turned over on three sides to stop the water and channel it into service towards the drain on a front side 13 ′ arranged in service at the bottom.
  • a projecting grid part 14 is formed by pushing back on the upper sheet 12 and has, at its lower part in use, a folded tongue 15 which does not close completely in alignment with the edge on the side 13 ′, in thus leaving a thin passage 16 for the leaks collected by a lower tank 17.
  • a lower sheet or base plate 18, also preferably made of zinc, is formed by folding or stamping with the tray 17 provided with a rear edge 17a.
  • the lower sheet 18 is normally integrated in a roof, for example in the middle of the slates of the roof, where it is applied to the battens of the roof, and it is rigidly connected by any suitable means such as rivets to the sheet upper 12.
  • its planar lateral edges 18a, 18c, arranged in a U with the front edge 18b are applied on the lateral planar edges 13a, 13c of the upper sheet 12 having substantially the same shapes and dimensions in plan.
  • the folded tab 15 is placed just in front of the front edge 17b of the tray 17, leaving the passage 16 open and the pairs of planar edges 13a, 18a and 13c, 18c are made integral by any suitable means such as welding, stapling, etc.
  • the rear plane edge 13b of the upper sheet closes the tray 17 upwards.
  • the ventilation element shown in exploded view in Figure 3 being thus assembled, is mounted inclined in the direction of the slope of a roof panel, so that the water which has accidentally passed through the ventilation grid according to l invention, formed on the projection 14, is collected by the tray 17 and then evacuated by gravity on the front edge 17b of the tray 17, through the passage slot 16 and from there on the flat edge 18b and the elements of blanket, such as slates.
  • the ventilation grille according to the invention which is formed on the projecting part 14 consists of rectangular openings (see the openings 3 in FIG. 2) formed by pushing out the rectangular trigger guard 4 delimited between two parallel slots forming the long parallel side faces 4c and 4d of the trigger guard.
  • the two ends of the trigger guard formed by pushing remain integral with the sheet 14 by taking a shape of rounded bow which strengthens the attachment of the trigger guard while channeling the water and the snow on hollow grooves 7a (only one groove is shown ) full intervals 7 between the openings 3.
  • the ventilation openings which lead to pairs of lateral passages and which are each covered by a trigger guard 4 are arranged on the projecting part 14 of the upper sheet 1 according to a network.
  • the network is made up according to FIG. 3 of three parallel lines of eight openings or else of eight columns of three openings.
  • the openings 3 generally have a length between 20 and 100 mm and a width between 10 and 20 mm.
  • the component parts of the ventilation elements such as that shown in Figure 3, can be made of metal sheet (zinc, aluminum, leaded or unleaded stainless steel, copper, etc.) but also in plastic molding and other material resistant to corrosion, solar radiation and to extreme temperature variations in an environment liable to be exposed to the sun (-30, -40 to + 150 ° C).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Cookers (AREA)
  • Baking, Grill, Roasting (AREA)
  • Building Environments (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Catching Or Destruction (AREA)
  • Gasket Seals (AREA)
  • Air Humidification (AREA)
  • Road Paving Structures (AREA)
EP92401561A 1991-06-18 1992-06-05 Entlüftungsrost und Lüftungselement mit solchem Rost Expired - Lifetime EP0519780B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9107432 1991-06-18
FR9107432A FR2678012B1 (fr) 1991-06-18 1991-06-18 Grille de ventilation et element d'aeration utilisant une telle grille.

Publications (2)

Publication Number Publication Date
EP0519780A1 true EP0519780A1 (de) 1992-12-23
EP0519780B1 EP0519780B1 (de) 1996-03-20

Family

ID=9413956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401561A Expired - Lifetime EP0519780B1 (de) 1991-06-18 1992-06-05 Entlüftungsrost und Lüftungselement mit solchem Rost

Country Status (6)

Country Link
EP (1) EP0519780B1 (de)
AT (1) ATE135788T1 (de)
DE (2) DE69209160D1 (de)
ES (1) ES2038961T1 (de)
FR (1) FR2678012B1 (de)
GR (1) GR930300063T1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006107782A1 (en) * 2005-04-01 2006-10-12 Carolina O'hagin Low profile roof vent

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR743204A (de) * 1933-03-25
FR2175020A1 (de) * 1972-03-07 1973-10-19 Robertson Co H H
FR2523186A1 (fr) * 1982-03-08 1983-09-16 Goubaud Michel Element d'aeration pour couverture de batiment
GB2196033A (en) * 1986-10-10 1988-04-20 Ega Ltd Roof space ventilator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR743204A (de) * 1933-03-25
FR2175020A1 (de) * 1972-03-07 1973-10-19 Robertson Co H H
FR2523186A1 (fr) * 1982-03-08 1983-09-16 Goubaud Michel Element d'aeration pour couverture de batiment
GB2196033A (en) * 1986-10-10 1988-04-20 Ega Ltd Roof space ventilator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006107782A1 (en) * 2005-04-01 2006-10-12 Carolina O'hagin Low profile roof vent

Also Published As

Publication number Publication date
FR2678012A1 (fr) 1992-12-24
FR2678012B1 (fr) 1996-02-23
GR930300063T1 (en) 1993-06-30
EP0519780B1 (de) 1996-03-20
ATE135788T1 (de) 1996-04-15
DE519780T1 (de) 1993-08-12
ES2038961T1 (es) 1993-08-16
DE69209160D1 (de) 1996-04-25

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