WO2001027532A1 - Apparatus for extracting air and/or fumes equipped with a protective grille - Google Patents
Apparatus for extracting air and/or fumes equipped with a protective grille Download PDFInfo
- Publication number
- WO2001027532A1 WO2001027532A1 PCT/FR2000/002678 FR0002678W WO0127532A1 WO 2001027532 A1 WO2001027532 A1 WO 2001027532A1 FR 0002678 W FR0002678 W FR 0002678W WO 0127532 A1 WO0127532 A1 WO 0127532A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- wires
- plate
- son
- grid
- Prior art date
Links
Classifications
-
- 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
- F24F7/02—Roof ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
Definitions
- the present invention relates to an air and / or smoke extraction device which is intended to be installed at the outlet of a duct, in particular for extracting stale air or smoke from the exterior of a building.
- This type of device is generally mounted on the roof of the building it equips.
- Some devices are devoid of mechanical ventilation, extraction by suction, being done by natural depression, especially under the effect of wind.
- This type of device generally comprises a horizontal circular base, which surrounds the outlet zone of the conduit, and a horizontal plate, generally circular, situated above the base at a certain distance from the latter.
- Its function is to constitute an obstacle to the passage of birds or other small animals, to prevent them from entering the duct.
- this grid also has the function of avoiding injury to the fingers.
- the known protective grids are produced in a mesh, in general with square or rectangular meshes, formed of welded wires; in this case two series of wires are provided, namely a series of annular wires (horizontal) connected by rectilinear wires (vertical).
- This type of known cage has a relatively high cost price.
- the cage is integrated, moreover, in the device during the manufacture of the latter, the assembly being delivered assembled, with its cage interposed between the base and the plate which covers it.
- the devices therefore occupy a large volume when they are to be stored, both at the manufacturer and at resellers and installers.
- the invention aims to solve these problems.
- the grid which has been mentioned above consists of a plurality of independent wires which interlock by their low and high ends in receiving cavities formed at the periphery of the 'base and, respectively, of the plate.
- wires are flexible, their positioning in said cavities being by elastic deformation and snap-fastening; - the wires are straight rods;
- the wires have an arched shape;
- the device includes spacers which ensure the connection of the plate with the base;
- the device is conditioned in the unassembled state in a package, such as a blister, which contains said base, said tray, said independent son and the spacers.
- a package such as a blister, which contains said base, said tray, said independent son and the spacers.
- the invention also relates to a blister which contains the unassembled exhaust air extractor, as explained above.
- FIG. 1 is a general perspective view of an air extraction device which is the subject of a first embodiment of the invention
- FIGS. 2 and 3 are diagrams which explain how the establishment of independent son constituting the grid, according to two different methods, the first using flexible son and the second rigid son;
- FIG. 4 is a side view, partially cut away of the apparatus of Figure 1;
- FIG. 4A is a schematic view, cut by a vertical median plane, of an apparatus according to Figures let 3, which is delivered in the disassembled state inside a packaging in blister form;
- FIGS 5A, 5B, 5C and 5D show different possible sections of the wire constituting a grid according to the invention;
- FIG. 6 is a schematic side view, which illustrates the configuration of a grid formed of inclined and crossed wires;
- - Figure 7 is a view similar to Figure 6, which shows the use of bent son in the shape of an inverted V;
- FIG. 8 is a similar view, which shows the use of arcuate son, the adjacent son being crisscrossed;
- FIGS. 9A and 9B are diagrams which represent two possible embodiments of the receiving cavities of the two ends of a straight wire constituting the cage;
- FIGS. 10 and 11 are partial views, in section, of two different bases making up the extraction apparatus, these views illustrating the nesting of the lower end of a wire in each of these two bases respectively;
- Figures 12 and 13 are side views similar to Figure 4, which show two other embodiments of the apparatus, equipped with grids having the configurations illustrated in Figures 6 and 8 respectively.
- the device shown in FIGS. 1 and 4 is a device for extracting smoke or stale air of the well known general type, which is intended to be mounted at the outlet of a ventilation duct of a building, by example of a chimney flue.
- This device 1 is essentially composed of a base 3, a plate 4 and an annular grid 2.
- the base 3 has an outer wall 30 in the form of a truncated cone, the apex of which is directed upwards.
- This base is hollow. It is produced by stamping a metal sheet, for example stainless steel. It has, on its small base (turned upwards) an annular horizontal rim 31, which borders a circular opening 300.
- the planar annular part 31 comprises stamped cups 6 constituting cavities open upwards.
- the set of bowls 6 is located on a circumference, at a constant regular angular spacing.
- the base 3 is overhung by a circular plate 4 in the form of a flat and horizontal disc.
- each bowl 7 there is a bowl 7 vertically plumb with each bowl 6.
- the plate 4 is made of sheet metal for example; the bowls 7 constitute cavities open at the bottom, and closed at the top.
- the bowls 6, 7 of each pair which are opposite are intended to receive, by interlocking, the ends of a wire 20 constituting the grid 2.
- the wires are for example spring steel, elastically deformable .
- the number of threads is, of course, a function of the dimensions of the device, and of the mesh width that it is desired to give to the grid.
- the plate 4 is held horizontally at a certain distance above the base 3 by suitable fixing means which, in the example illustrated, consist of a pair of diametrically opposite spacers 5.
- Figure 5A a circular section
- Figure 5B a square section
- Figure 5C a rectangular section with rounded ends (oblong shape)
- Figure 5D a trapezoidal shape.
- the wires 20 are preferably arranged so that the long side of the section is oriented radially with respect to to the vertical axis of median symmetry of the device, so that the wires interfere as little as possible with the free passage of air through the grid and do not disturb the operation of the device.
- the wires are flexible.
- FIG. 1 very schematically illustrates the establishment of such son.
- the shape of these cups is adapted to the cross section of the wire 20 so that this nesting can be achieved over a sufficient depth, and with a small lateral clearance.
- the wires can have a "U”, arc, "N" or rectangular section.
- the initial spacing of the parts 3 and 4 is slightly less, apart from the interlocking clearance, than the length of the rods 20.
- this spacing is calibrated by the length of the connecting spacers 5.
- the establishment of a wire 20a is done by bending this wire, at an angle in one of the bowls, in this case the lower bowl 6 , bending with pivoting f in the bent position, and straightening (deployment) in the rectilinear initial state, when the upper end is brought in vis-à-vis the upper bowl 7.
- the assembly is therefore done by elastic snap-fastening of each wire 20 in the pair of cuvettes 6 and 7 provided to receive it.
- the wires are put in place by operating alternately, on one side then on the other, of the plane transverse median passing through the spacers 5, so as not to unbalance the parallelism between the plate 4 and the base 3.
- the parts 3 and 4 are initially spaced from each other by a distance slightly greater than the length of the rods 20.
- the latter having been fitted into the lower cups 6, it suffices to bring them closer to each other the two parts, for example by lowering the plate 4 (by screwing the nuts 50 on the spacers 5) as symbolized by the arrow g.
- the bowls 7 thus trap the upper end portions of the rods 20.
- the wires 20 are rigid, and the upper bowls 7 have a relatively great depth.
- the plate 4 having been fixed (by means of spacers) at the desired distance above the base, it is possible to place each wire 20 in the following manner:
- the wire is slightly inclined relative to the vertical, and by an oblique upward translational movement, its upper end is inserted into the bowl 7;
- the wire is brought into a vertical position, and its lower end is positioned above the part 31, opposite the corresponding lower bowl 6;
- the wire is allowed to descend by gravity so that its lower portion fits into the bowl 6, its upper portion still remains trapped - with a certain play - inside the bowl 7.
- the packaging shown in Figure 4A consists of a blister 8, containing the device in the disassembled state.
- This blister 8 comprises, in known manner, a flat base plate 80, for example of strong cardboard, provided with an opening 82 allowing it to be hung on a display.
- the unassembled device is covered with a plastic film 81, for example transparent, which adheres by its periphery to the outer edge of the plate 80.
- the plate 4 is inserted inside the hollow base 3; inside it are also housed all of the wires 20 which will constitute the cage 5, as well as their nuts 50 and washers 51 for fixing, contained for example in a small bag 52.
- FIG. 4A makes it possible to realize the great compactness of the apparatus thus conditioned, the subsequent assembly of which is carried out by the installer himself, this in comparison with an apparatus which would be delivered in the state mounted, as shown in Figure 1.
- two series of oblique wires 21, 21 ′ respectively are provided, which intersect symmetrically, which gives the meshes of the grid a diamond shape.
- an assembly of this type gives the grid an original appearance on the aesthetic level.
- each wire has an inverted "V" shape, the two branches 22a, 22b of which correspond to the independent wires 21, 21 'in FIG. 6.
- the constituent wires of the grid, referenced 23, have an arcuate shape. Their middle part has the general shape of an arc of a circle, while their end zones are straightened to form a vertical rectilinear portion, capable of fitting into a bowl 6 or 7.
- each bowl 6, 7 receives the ends of a pair of adjacent wires 23, 23 'arranged symmetrically with respect to a vertical radial plane, each wire 23' intersecting with a neighboring wire 23 at its central part. curved.
- FIG. 9A cavities 6 and 7 produced by stamping (material pushing) in parts 3 and 4 respectively.
- one of the elements 3 or 4 can be provided with cavities obtained by stamping, while the other 4 or 3 is provided with recesses made by molding or by removal of material, which corresponds to a mixture of solutions of the Figures 9 A and 9B.
- the base of the device is not necessarily hollow.
- It has an outer wall of generally frustoconical shape having annular recesses 90 in the form of stair treads.
- the internal opening of the base 9, referenced 91, of circular section corresponds to the outlet of the conduit (not shown) in the extension of which the base is mounted.
- This base 9 comprises a set of bowls 6 which can be produced during the molding of the concrete base, or subsequently dug in this base.
- the cavities 6 receive by interlocking the lower ends of the wires 20 constituting the grid.
- the base referenced 9 ', has a doucine-shaped profile of the kind described in FR-A-2 71 1 770 (in the name of the applicant).
- the cavities 6 and 7 receiving the ends of the wires constituting the cage are produced directly in the base 3 or 9 and, respectively, in the upper plate 4 It goes without saying that it would not go beyond the ambit of the present invention to provide for making these low and / or high cavities in one (or more) annular element (s) independent of the base. and of the tray, and intended to be secured later with one and / or the other of these.
- the grid wires are not necessarily made of metal.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Packages (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00966212A EP1218670A1 (en) | 1999-10-08 | 2000-09-28 | Apparatus for extracting air and/or fumes equipped with a protective grille |
AU76681/00A AU7668100A (en) | 1999-10-08 | 2000-09-28 | Apparatus for extracting air and/or fumes equipped with a protective grille |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912844A FR2799530B1 (en) | 1999-10-08 | 1999-10-08 | AIR AND / OR FUME EXTRACTION APPARATUS HAVING A PROTECTIVE GRILLE |
FR99/12844 | 1999-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001027532A1 true WO2001027532A1 (en) | 2001-04-19 |
Family
ID=9550950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/002678 WO2001027532A1 (en) | 1999-10-08 | 2000-09-28 | Apparatus for extracting air and/or fumes equipped with a protective grille |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1218670A1 (en) |
AU (1) | AU7668100A (en) |
FR (1) | FR2799530B1 (en) |
WO (1) | WO2001027532A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2842586B1 (en) | 2002-07-17 | 2005-05-20 | Invent Or | DEVICE FOR EXTRACTING GAS |
FR3038969A1 (en) * | 2015-07-17 | 2017-01-20 | Loic Ropars | STATIC EXTRACTOR FOR AIR EXHAUST OR AERATION DUCT |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2220695A1 (en) * | 1973-03-09 | 1974-10-04 | Technicair Sa | |
FR2459424A1 (en) * | 1979-06-18 | 1981-01-09 | Zaniewski Michel | DEVICE FOR VENTILATING PREMISES AND DRAWING FIREPLACES |
FR2711770A1 (en) * | 1993-10-25 | 1995-05-05 | Zaniewski Michel | Improvements to modular devices making it possible to assemble apparatuses for extracting fumes or ventilating rooms |
FR2758177A1 (en) * | 1997-01-03 | 1998-07-10 | Liddell International | Static draught generator for flue, preventing down=draught |
-
1999
- 1999-10-08 FR FR9912844A patent/FR2799530B1/en not_active Expired - Fee Related
-
2000
- 2000-09-28 EP EP00966212A patent/EP1218670A1/en not_active Withdrawn
- 2000-09-28 WO PCT/FR2000/002678 patent/WO2001027532A1/en not_active Application Discontinuation
- 2000-09-28 AU AU76681/00A patent/AU7668100A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2220695A1 (en) * | 1973-03-09 | 1974-10-04 | Technicair Sa | |
FR2459424A1 (en) * | 1979-06-18 | 1981-01-09 | Zaniewski Michel | DEVICE FOR VENTILATING PREMISES AND DRAWING FIREPLACES |
FR2711770A1 (en) * | 1993-10-25 | 1995-05-05 | Zaniewski Michel | Improvements to modular devices making it possible to assemble apparatuses for extracting fumes or ventilating rooms |
FR2758177A1 (en) * | 1997-01-03 | 1998-07-10 | Liddell International | Static draught generator for flue, preventing down=draught |
Also Published As
Publication number | Publication date |
---|---|
FR2799530A1 (en) | 2001-04-13 |
FR2799530B1 (en) | 2001-12-28 |
EP1218670A1 (en) | 2002-07-03 |
AU7668100A (en) | 2001-04-23 |
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