FR3045787B1 - SUCTION HOOD AND ASSOCIATED SIMPLIFIED INSTALLATION METHOD - Google Patents

Abstract

An extractor hood comprises an electrical suction system mounted on a support (40) forming at least a portion of a fume extraction pipe (20), and a filter box (11) comprising a face of inlet (11a) cooking fumes, filter elements (17) and a circulating chamber (12) cooking fumes in communication with the suction duct (20). The support (40) and the filtration box (11) comprise complementary securing means (14, 51), the filter box (11) being secured to the support (40) by displacement of the filter box (11) relative to to the support (40). Use to facilitate the installation of a domestic range hood.

Description

The present invention relates to a fume hood and a method of installing such a fume hood.

In general, the present invention finds application in the field of domestic extractor hoods, intended to be mounted on a wall or the ceiling of a kitchen.

An extractor hood is designed to be placed above a cooking surface, and in particular a hob. It allows to suck the cooking fumes loaded with fatty vapors for their expulsion or recycling. For this purpose, an extractor hood comprises at least one filter box comprising an inlet face of the cooking fumes.

In use, the inlet face of the filter box generally extends in a substantially horizontal plane, above a hob.

The filtration box further comprises a chamber for circulating the cooking fumes from the inlet face, the circulation chamber being in communication with a suction duct of the extractor hood.

The filter box usually houses filter elements, such as different types of filter (grease filter, activated carbon filter). It is further equipped with control means of the hood (on / off, adjustment of the intake air flow and the speed of a suction motor, ...) and / or lighting devices equipping the hood.

The extractor hood also comprises an electric suction system, of the type of a suction motor or fan, mounted on a support with all the elements necessary for the operation of the electrical suction system.

The support is attached to the filter box and forms at least a portion of the suction pipe in communication with the chamber for circulating cooking fumes from the filter box.

Furthermore, a covering structure covers and masks the electrical suction system mounted on the support.

The covering structure thus extends substantially in a vertical direction above the filter box to mask all or part of the suction duct fumes cooking.

Such an extractor hood is generally in one piece for its attachment to a wall, except the cladding structure set later.

Thus, the document WO 2011/020808 A1 discloses such a suction hood comprising a support incorporating filtration and suction means.

A mounting rail is fixed to the support, for example by screwing, and has a groove for mounting by clamping a cladding structure.

An electrical suction system mounted on a support and a filter box constitute a particularly heavy and bulky set.

Fixing this set on a wall or ceiling is difficult to implement, especially for the realization of adjustments and its leveling.

The assembly of an extractor hood, generally done by an individual or a cook, requires the intervention of at least two people or failing that, presents risks of bad installation, of fall of the hood.

The present invention aims to solve all or part of the aforementioned drawbacks, and in particular to simplify and make more ergonomic mounting of a hood. For this purpose, an extractor hood comprises an electrical suction system mounted on a support forming at least a portion of a fume extraction duct, and a filter box comprising an inlet side of the cooking fumes. , filtration elements and a chamber for circulating cooking fumes in communication with the suction duct.

According to the invention, the support and the filtration box comprise complementary securing means, said filter box being secured to said support by moving said filter box relative to said support.

Thus, the extractor hood can be installed by dissociating during installation the support associated with the electrical suction system on the one hand, and the filter chamber of the hood on the other hand, particularly bulky when it is designed to extend above a hob and houses the filter elements. The absence of the filter box during the assembly of the support increases the visibility for the positioning of the support and its adjustment in height above a hob.

Preferably, the securing of the filter box to the support is carried out by translation of the filter box relative to the support.

Thanks to the translation solidarity of the filter box relative to the support, the mounting of the filter box on the support can be achieved once it is attached to a wall or ceiling.

In practice, the translation comprises a horizontal component and a vertical component.

The displacement of the filter box relative to the support thus comprises a horizontal translation combined with a vertical translation, for positioning and securing the filter box on the support by simple displacements, easily implemented by a single operator.

In a practical embodiment of the invention, the support comprises two side walls forming at least a portion of the suction duct, the filtration box being secured to said support by translation of said filter box in a plane parallel to said side walls.

The translation in a plane parallel to the side walls makes it possible to guiding the filtration box in translation, facilitating the mounting of the filter box on the support.

In practice, the support comprises securing means projecting from an inner face of the side walls forming at least a portion of the suction duct.

The securement of the filter box on the support is thus performed at an inner face of the side walls forming at least a portion of the suction duct, thus allowing the filtration box to be mounted inside the suction duct. .

In practice, when the side walls are made of sheet metal, the securing means are made by folding, stamping and / or cutting a portion of the side walls of sheet metal.

According to an advantageous characteristic, the filtration box comprises assembly tabs respectively extending on two lateral edges of an opening opening of the circulation chamber of the filter box.

Thus, when the filtration box is secured to the support by translation of the assembly legs of the filter box along the side walls, the opening opening of the circulation chamber of the filter box is placed in communication with the conduit of the filter box. suction defined at least in part by the two side walls of the support.

In an exemplary practical embodiment of the invention, the securing means comprise at least one tab projecting from the side walls of the support.

In a complementary manner, the assembly tabs of the filter box comprise at least one slot for passing said at least one tongue, said at least one tab being abutted at one end of said at least one end-pass slot. translation travel of the filter box relative to the support.

The passage slot thus makes it possible to control and limit the displacement in translation of the filter box relative to the support during assembly of the extractor hood.

In order to facilitate the mounting of the filtration box on the support, said at least one passage slot comprises an open end, opposite to the end of abutment of said at least one tab.

According to another advantageous characteristic, the assembly tabs comprise a guide edge adapted to slide in contact with said at least one tongue.

The translation of the filter box relative to the support can thus be guided and reliably controlled on at least part of the displacement during assembly of the extractor hood by the operator.

According to another aspect, the invention also relates to a method of installing a fume hood as described above.

This installation method comprises the following steps: - fixing a support forming at least a portion of a suction duct to a structure; - Securing the filter box on the support by moving the filter box relative to the support; and mounting on the support of a covering structure of the suction duct.

Thanks to the dissociation of the support forming at least a portion of a suction duct and the filter box comprising the filtration elements, the assembly and installation of the extractor hood are facilitated.

The installation method has features and advantages similar to those previously described in connection with the extractor hood. Other features and advantages of the invention will become apparent in the description below.

In the accompanying drawings, given by way of non-limiting examples: FIG. 1 is a schematic perspective view of an extractor hood according to one embodiment of the invention; - Figure 2 illustrates in perspective the extractor hood of Figure 1 partially disassembled; FIG. 3 is a perspective view of a suction hood filter box according to one embodiment of the invention, with a part torn off; FIG. 4 is a perspective view of a hood support according to one embodiment of the invention; - Figure 5 is a perspective view illustrating the mounting of a filter box and a support of the extractor hood of Figure 1; FIG. 6 is a diagrammatic perspective view illustrating an exemplary embodiment of means for securing a filter box and a support for a fume hood according to one embodiment of the invention; and FIG. 7 is a perspective diagram illustrating an alternative embodiment of means for securing a filter box and a support for a suction hood.

We will first describe with reference to Figure 1 a fume hood according to a non-limiting embodiment of the invention.

An extractor hood 10 is adapted to be placed above a plane or hob (not shown). For this purpose, the extractor hood 10 comprises a filter box 11 adapted to extend generally in a plane above the cooking surface.

The filter box comprises an inlet face 11a of the cooking fumes and a circulating chamber 12 of the cooking fumes.

In a known manner, the filtration box 11 may comprise, as illustrated in FIG. 3, different filtration elements 17 filtering and treating the cooking fumes before their expulsion or recycling. By way of non-limiting example, the filter box 11 may comprise first of all grease filters 17 for trapping the grease particles in a mesh of metal wires.

In this embodiment, the grease filters 17 extend at the inlet face 11a of the cooking fumes of the filter box 11. They can be removably mounted on the filter box 11, in order to allow cleaning them.

The filtration box 11 may also include an activated carbon filter (not shown) for converting all or part of the fat molecules of the cooking fumes.

The filtration box 11 may also comprise a series of buttons or control buttons 13 intended, in a known manner, to control various functions of the hood (suction speed, on / off of an electrical suction system, lighting of the hob, ...).

In principle, the filter box 11 is intended to collect and filter the cooking fumes and to direct them into a suction duct extending generally above the height of the filter box 11.

As well illustrated in Figure 1, a covering structure 18 extends above the filter box 11 to mask all or part of the suction duct.

FIG. 2 illustrates, on the other hand, the extractor hood 10 after dismantling the covering structure 18.

The filtration box 11 has a through opening 12a, thus constituting a passage for the passage of cooking fumes from the circulation chamber 12 of the filtration box 11. The circulation chamber 12 of the cooking fumes is in communication with a suction duct 20. In the vicinity of the opening opening 12a, an electric suction system 30 is mounted in the suction duct 20.

The electric suction system 30 comprises a suction motor 31 adapted to create a suction flow within the filtration box 11 towards the suction duct 20.

Electrical and electronic control means 32 are also provided in the extractor hood 11 in a conventional manner to control the operation and the power supply of the suction motor 31.

The electrical suction system 30 is of the type customary to those used in prior art extractor hoods and need not be described in more detail here.

The extractor hood 10 comprises a support 40 on which is mounted the electrical suction system 30.

As clearly illustrated in FIG. 2, the circulation chamber 12 for the cooking fumes is in communication with the suction duct 20, the support 40 forming at least a portion of the suction duct 20 for the cooking fumes, at the outlet of the circulation chamber 12.

In this embodiment, and in a nonlimiting manner, the support 40 comprises two lateral walls 41, 42 forming at least a part of the suction duct 20.

As can be seen for example in FIG. 4, the support 40 also comprises a bottom wall 43 extending between the two lateral walls 41, 42. The two lateral walls 41, 42 and the bottom wall 43 constitute here a box adapted to housing the suction motor 31 of the electric suction system 30.

The side walls 41,42 and the bottom wall 43 of the support may be made for example of sheet metal, cut and folded to form the box.

Preferably, in this embodiment the support 40 further comprises an upper plate 44.

The upper plate 44 is adapted to delimit, in the upper part, the box. For this purpose, the upper plate 44 is fixed to the side walls 41, 42 to the bottom wall 43 of the box.

As is well illustrated in FIGS. 2 and 4, the upper plate 44 extends above the side walls 41, 42 of the support, opposite the opening opening 12a of the filtration box 11.

The upper plate 44 is intended in this embodiment to support the electric and electronic control means 32 of the electric suction system 30.

The upper plate 44 has a through opening 44a for extending the suction duct 20 beyond the support 40.

Although not shown in the figures, the opening 44a of the upper plate 44 is adapted to cooperate with a flexible conduit PVC or aluminum, for the circulation of cooking fumes for disposal or recycling.

Furthermore, the support 40 of the extractor hood 10 comprises fixing means for mounting the extractor hood against a wall, and for example the wall of a kitchen.

It is known, for example, to fix a horizontal rail on the wall intended to support the extractor hood 10 and to provide the support 40 with hooks (not shown in the figures) intended to cooperate with the horizontal rail in order to carry out the fixing of the hood. suction 10 on the wall.

As well illustrated in Figure 3, the filter box 11 has an upper wall 11b, extending substantially parallel to the inlet face 11a.

Thus, in this embodiment, the filter box 11 has a substantially parallelepiped shape. The circulating chamber 12 of the cooking fumes is thus formed between the inlet face 11a provided with the filtering elements 17 and the upper wall 11b of the filtration box 11. The opening opening 12a of the circulation chamber 12 is formed here by a cut-out in the upper wall 11b of the filter box 11.

In this embodiment, the opening opening 12a is formed of a substantially rectangular cutout in the upper wall 11b.

In general, the opening opening 12a has a shape substantially corresponding to the section of the suction duct 20 with which it communicates.

Here, the opening opening 12a forms an open section of substantially identical dimensions to the cross section of the suction duct 20 delimited by the side walls 41, 42 and the bottom wall 43 of the support 40.

As is apparent from the foregoing description, the extractor hood 10 is relatively heavy and bulky because of the presence of the electric suction system 30 mounted on the support 40 cooperating with the filter box 11 for the communication of the conduit of suction 20 with the circulation chamber 12 of the cooking fumes in the filtration box 11.

As well illustrated in Figures 5 and 6, to facilitate the mounting of the extractor hood 10, the support 40 and the filter box 11 are separable and comprise complementary securing means, an exemplary embodiment will be described below.

As shown diagrammatically in FIG. 5, in this embodiment, the filtration box 11 is secured to the support 40 by translation of the filtration box 11 relative to the support 40, according to a translational movement schematized by the arrow T.

The assembly is thus performed by translation of the filter box 11 to be placed above a cooking plane.

The movement of the filter box 11 in this embodiment will be described in more detail below.

The filtration box 11 comprises assembly tabs 13 for securing the filtration box 11 to the support 40.

In this embodiment, the filtration box 11 is secured to the support 40 by translation of the assembly tabs 13 of the filter box 11 along the side walls 41,42 of the support 40.

The assembly tabs 13 here respectively extend over two lateral edges 11c of the opening opening 12a of the circulation chamber 12 of the filtration box 11.

The assembly tabs 13 extend for example on either side of the cutout formed in the upper wall 11b of the filtration box 11.

The assembly lugs 13 can thus be formed by folded wings extending substantially perpendicularly to the plane of the upper wall 11b of the filter box 11.

When the filtration box 11, and in particular the upper wall 11b, is made of sheet metal, the assembly tabs 13 can be made by cutting, stamping and folding the metal sheet during the production of the blank to form the blank. opening opening 12a.

In general, and regardless of the embodiment of the securing means, the latter can be made in one piece or in one piece with the filter box 11, and for example with the upper wall 11b of the filtration box 11.

They can be formed by folding, stamping and / or cutting the top wall 11b made of sheet metal.

In this embodiment, and in a nonlimiting manner, the support 40 comprises securing means 51 projecting from an inner face 41a, 42a of the side walls 41,42.

The securing means 51 of the support 40 thus form a projection towards the inside of the suction duct 20.

When the side walls 41, 42 are of sheet metal, the securing means 51 may be made by folding, stamping and / or cutting a portion of the side walls 41,42.

In this embodiment and in a nonlimiting manner, the securing means 51 comprise at least one tongue 51 projecting from the side walls 41, 42 of the support 40.

In this embodiment, and as well illustrated in FIGS. 4 and 6, the securing means of the support 40 comprise two tongues 51 respectively on each lateral wall 41, 42 of the support 40.

As can be seen in FIG. 4, each tongue 51 is made by a cut-out in the sheet of the lateral wall 41, 42 and a folding of the portion of sheet metal cut to form a tongue 51 projecting from the internal face 41a, 42a, of each side wall 41,42.

The complementary securing means of the support 40 and the filter box 11 are thus adapted to secure the filter box inside the support 40.

In the embodiment illustrated in FIG. 5, the assembly lugs 13 are adapted to be displaced in translation in a plane parallel to the side walls 41, 42, and more precisely along the internal faces 41a, 42a, of the lateral walls. 41.42.

Thus, the distance separating the assembly lugs 13 on either side of the opening opening 12a is substantially equal to the distance separating the internal faces 41a, 42a from the side walls 41, 42 of the support 40.

The assembly tabs 13 of the filter box 11 comprise at least one passage slot 14 of a tongue 51.

In this embodiment in which two tabs 51 are provided on each side wall 41, 42 of the support 40, the assembly tabs 13 comprise two passage slots 14 intended to cooperate respectively with two tabs 51.

As well illustrated in Figure 6, each passage slot 14 comprises an open end 14b opposite a closed end 14a.

In this embodiment, each passage slot 14 is made by a hook 15a, 15b formed on the assembly lug 13. Each hook 15a, 15b has a closed end 14a, for the abutment of a tongue 51, and an open end 14b, opposite to the closed end 14a, for the insertion of the tongue 51 into the hook 15a, 15b.

Each tongue 51 comes into abutment with the closed end 14a of the passage slot 14 at the end of translation course of the filtration box 11 with respect to the support 40.

The assembly tabs 13 forming an extra thickness against the inner faces 41a, 42a of the side walls 41, 42, each tab 51 forms an elastic tab for elastically deforming. The elastic deformation of the tongues 51 creates a nipping phenomenon ensuring the holding of the hooks 15a, 15b in engagement with the tongues 51, and in particular an elastic pinching of each tongue 51 at the closed end 14a of the passage slot 14.

As well illustrated in Figure 6, each bracket 13 further comprises a guide edge 16 adapted to slide in contact with at least one tab 51 filter box.

In this embodiment, the guide edge 16 extends between two hooks 15a, 15b of each bracket.

As illustrated in FIG. 5, with reference to the displacement in translation schematized by the arrow T, each assembly tab 13 comprises in a horizontal direction X a front hook 15a and a rear hook 15b.

The guide edge 16 is inclined with respect to a lateral edge 11c of the opening opening 12a of the filtration box 11.

As is well illustrated in FIG. 6, a front end 16a of the guide edge 16, close to the front hook 15a, is situated at a distance from the lateral edge 11c less than the distance separating a rear end 16b from the guiding edge 16, near the rear hook 15b.

Thus, during the introduction of the filter box 11 into the support 40, one of the tongues 51 slides on the outside of the front hook 15a to the front end 16a of the guide edge 16.

The displacement in translation of the filter box 11 is continued by a sliding of the guide edge 16 against the tongue 51.

The filtration box 11 is moved both in horizontal translation, in the horizontal direction X, and in vertical translation, in the vertical direction Y, so that the assembly tabs 13 fit inside the walls. 41,42 of the support 40.

At the end of translation travel, a first tongue 51 cooperates with the front hook 15a.

Similarly, a second tongue 51 protrudes from the rear end 16b of the guide edge 16 and abuts against the closed end 14a of the passage slot 14 formed by the rear hook 15b.

The mounting of the filter box 11 is thus facilitated by guiding each assembly tab 13 along the tongues 51.

The translation of the filtration box 11 with respect to the support 40 is carried out mainly in a plane substantially parallel to the plane in which the filtration box 11 extends, corresponding here also to the horizontal plane of the inlet face 11a of the filter box. 11, but also in the vertical direction Y, in the height of the side walls 41,42 of the support 40.

This type of assembly thus makes it possible to secure the filtration box 11 securely on the support 40, against the side walls 41, 42.

The translation T of the filtration box 11 with respect to the support 40 thus comprises a horizontal component, in the horizontal direction X, and a vertical component, in the vertical direction Y.

As well illustrated in Figures 5 and 6, the assembly tabs 13 may include stampings 61 cooperating with holes 62 provided on the side walls 41, 42 of the support 40 for positioning and locking the filter box 11 on the support 40 .

The stampings 61 have for example a height of between 1 mm and 3 mm and are preferably of convex shape.

The stampings 61 thus form a protrusion, of convex shape, on one face of the assembly lugs 13, designed to face a lateral wall 41, 42 of the support.

Thus, during the displacement of the filter box 11 along the side walls 41, 42, the stampings 61 will cause a small elastic deformation of the side walls 41,42.

When the stampings 61 are facing the holes 62 of the side walls 41,42, they enter the holes 62 and the side walls 41,42 are resiliently returned to their original position, not deformed.

Finally, as well illustrated in FIG. 4, electronic connection means 65 can be arranged in the support 40 and allow automatic connection with complementary electronic connection means carried by the filtration box 11.

The electronic connection can thus be performed during the introduction by translation of the filter box 11 on the support 40.

Here, the bottom wall 43 of the support 40 has an electrical connection plug 65, male or female, and the filter box 11 has a complementary electrical connection plug (not shown).

The electrical connection plugs are arranged to face each other when the filter box 11 is secured to the support 40 and to connect to each other when the filter box 11 is secured to the support 40.

Of course, the present invention is not limited to the embodiment described above.

In particular, the complementary securing means may be different.

Thus, as illustrated in FIG. 7 in an alternative embodiment, each assembly lug 13 has a passage slot 70 intended to cooperate with tabs 51 projecting from a side wall 41, 42 of the support 40. .

As in the previous embodiment, the filter box is moved in a horizontal translation in a horizontal direction X, to position each passage slot 70 plumb or upstream of a corresponding tongue 51.

Then, the filter box is moved in a translation movement combining a horizontal component and a vertical component.

During the displacement of the filtration box 11 along the side walls 41, 42, the tongues 51 will cause a small elastic deformation of the assembly lugs 13.

When the tongues 51 are respectively opposite the passage slots 70, the tabs 51 penetrate into the passage slots 70 and the assembly tabs 13 are resiliently biased back to their original, undistorted position.

At the end of translation travel of the filter box, each tongue 51 is abutted at one end of the corresponding passage slot 70.

Of course, alternatively, the passage slots 70 may be made in the side walls 41, 42 of the support 40 and the tongues 51 may be formed on the assembly lugs 13.

In this embodiment, the passage slots 70 and the tongues 51 can be made by folding, stamping and / or cutting a portion of the side walls or the assembly lugs 13 made of sheet metal.

Whatever the embodiment of the complementary securing means, the mounting of the extractor hood is simplified.

When installing such an extractor hood on a fixed structure, for example against a wall or suspended from a ceiling, the method consists first of all in fixing the support 40 on which the electrical suction system is mounted. 30.

After fixing and adjusting the height of the support 40 on the structure, the filter box 11 can be secured by moving the filter box 11 relative to the support 40 as described above.

At the end of the displacement stroke, the filtration box 11 is locked in position by the stampings 61 cooperating with the holes 62. Such locking mode is reversible.

Thus, to unlock the filter box 11 of the support 40, the operator simultaneously applies forces opposed to the side walls 41, 42 to extract the stampings 61 from the respective bores 62.

Alternatively, the operator can press the stampings using a tool. Alternatively, the filter box 11 can be held in position by means of fixing screws to block any relative displacement of the filter box 11 and the support 40.

Finally, a cladding structure 18 is mounted on the support, above the filtration box 11 to mask the entire suction duct 20.

The mounting of the extractor hood is thus facilitated and can be performed by a single operator.

Claims (10)

An extractor hood comprising an electric suction system (30) mounted on a support (40) forming at least a portion of a fume extraction pipe (20), and a filter box (11) comprising an inlet face (11a) for cooking fumes, filtration elements (17) and a circulation chamber (12) for cooking fumes in communication with said suction duct (20), characterized in that said support (40) comprises two side walls (41, 42) forming at least a portion of said suction duct (20), said support (40) and said filter box (11) having complementary securing means (14, 51) , said filter box (11) being secured to said support (40) by translation of said filter box (11) in a plane parallel to said side walls (41, 42), said translation comprising a horizontal component and a vertical component. 2. Extractor hood according to claim 1, characterized in that said support (40) comprises securing means (51) projecting from an inner face (41a, 42a) of said side walls (41, 42) forming at least a part of said suction duct (20). 3. Extractor hood according to one of claims 1 or 2, characterized in that said side walls (41,42) are of metal sheet, said securing means (51) being made by folding, stamping and / or cutting of a portion of said sidewalls (41, 42) of sheet metal. 4. Extractor hood according to one of claims 1 to 3, characterized in that the filter box (11) has assembly tabs (13) extending respectively on two side edges (11c) of an opening outlet (12a) of the circulation chamber (12) of the filter box (11). 5. Extractor hood according to claim 4, characterized in that said assembly lugs (13) comprise stampings (61) cooperating with bores (62) provided on said side walls (41, 42) of said support (40). . 6. Extractor hood according to one of claims 4 or 5, characterized in that said securing means comprise at least one tongue (51) projecting from the side walls (41, 42) of said support (40). 7. Extractor hood according to claim 6, characterized in that the assembly lugs (13) of said filter box (11) comprise at least one passage slot (14) of said at least one tongue (51), said at least one tongue (51) being abutted at one end (14a) of said at least one passage slot (14) at the translational end of said filter box (11) relative to said support (40). 8. Extractor hood according to claim 7, characterized in that said at least one passage slot (14) comprises an open end (14b), opposite said end (14a) for abutment of said at least one tongue ( 51). 9. Extractor hood according to one of claims 6 to 8, characterized in that the connecting lugs (13) comprise a guide edge (16) adapted to slide in contact with said at least one tongue (51) box filtration. 10. A method of installing an extractor hood according to one of the preceding claims, characterized in that it comprises the following steps: - fixing a support (40) having two side walls forming at least a portion of a suction duct (20) to a structure; - Securing said filter box (11) on the support (40) by translating said filter box (11) in a plane parallel to said side walls (41,42), said translation comprising a horizontal component and a vertical component; and - mounting on said support (40) a covering structure (18) of said suction duct (20).