BE1025156B1 - LOCKABLE VENTILATION GRILL - Google Patents

Abstract

Ventilation grille (1), comprising a grille frame (2) defining an air flow opening (4), comprising two or more slats (3), which are arranged substantially parallel to each other in the air flow opening (4) in the grille frame (2), and comprising a screen (6) which is movably provided between a first position for opening the airflow opening (4) and a second position for closing the airflow opening (4).

Description

(30) Priority data:

(73) Holder (s):

RENSON SUNPROTECTION-PROJECTS NV

8790, WAREGEM

Belgium (72) Inventor (s):

DELMOTTE Elien Henriette Roger

8500 COURTRAI

Belgium

VANLUCHENE Kristof Gustaaf

9870 MACHINES

Belgium

THE FRENE Joost Benjamin Renaat

8790 WAREGEM

Belgium

DE MUELENAERE Rino Francky 8800 OEKENE

Belgium (54) LOCKABLE VENTILATION GRILL (57) Ventilation grille (1), comprising a grille frame (2) defining an airflow opening (4), comprising two or more blades (3), which are almost parallel to each other in the airflow opening (4) in the grille frame (2) are arranged, and comprising a screen (6) movably provided between a first position for opening the air flow opening (4) and a second position for closing the air flow opening (4).

Fig. 4

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy Publication number: 1025156 Filing number: BE2017 / 5267 Intellectual Property Office International Classification: E06B 7/082 E06B 9/08 F24F 13/15 F24F 13/12 Date of grant: 21/11/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 18/04/2017.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

RENSON SUNPROTECTION-PROJECTS NV, Maalbeekstraat 6, 8790 WAREGEM Belgium;

represented by

HOSTENS Veerle, Pres. Kennedypark 31c, 8500, KORTRIJK;

OSTYN Frans, Pres. Kennedypark 31c, 8500, KORTRIJK;

CHIELENS Kristof, Pres. Kennedypark 31c, 8500, KORTRIJK;

CARDOON Annelies, Pres. Kennedypark 31c, 8500, KORTRIJK;

a Belgian invention patent with a term of 20 years, subject to payment of the annual fees as referred to in Article XI.48, § 1 of the Economic Law Code, for: CLOSABLE VENTILATION GRILLE.

INVENTOR (S):

DELMOTTE Elien Henriëtte Roger, Burgemeester Mayeurlaan 56, 8500, KORTRIJK;

VANLUCHENE Kristof Gustaaf, Sparrenstraat 2A, 9870, MACHELEN;

FRENE Joost Benjamin Renaat, Broekstraat 5, 8790, WAREGEM;

DE MUELENAERE Rino Francky, Plaatsweg 2a, 8800, OEKENE;

PRIORITY :

BREAKDOWN:

Split from basic application:

Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 21/11/2018,

With special authorization:

BE2017 / 5267

LOCKABLE VENTILATION GRILL

This invention relates to a ventilation grille, comprising a grille frame that defines an air flow opening, and comprising two or more slats, which are arranged substantially parallel to each other in the air flow opening in the grate frame.

The slats of such a ventilation grille are typically arranged horizontally one above the other, but may equally well be arranged vertically or at an angle.

There are various types of such ventilation grids, in which the slats are arranged rotatably in the grille frame, so that the air flow opening is adjustable and can even be closed temporarily and opened again. Such ventilation grids are known as so-called register flaps.

The rotatable provision of these slats, however, is a rather expensive solution.

In addition, in order to be able to mount these slats rotatably in the grating frame, a certain play is required at the ends of the slats, which is difficult to seal, so that even in the closed position of such ventilation grids there is always a negligible amount of residual air flow. Accurate and repeatable regulation of the air flow opening is also difficult here. Seals at the ends of such slats are particularly sensitive to wear. Even where the slats close together in their longitudinal direction, it is not easy to realize a certain seal.

The object of this invention is to provide such a ventilation grille in which the air flow opening can be controlled in a cheaper and more secure manner and the residual air flow can be reduced in a more certain manner.

This object of the invention is achieved by providing a ventilation grating, comprising a grating frame that defines an air flow opening, comprising

BE2017 / 5267 two or more slats, which are arranged almost parallel to each other in the air flow opening in the grating frame, and comprising a screen which is movable between a first position for at least partially opening the air flow opening and a second position for at least partially closing the airflow opening.

By providing such a screen in addition to the slats in such a ventilation grille, the air flow can be controlled in a cheaper and more secure manner. Moreover, it is much easier to provide such a ventilation grille with a better seal, whereby the residual air flow can be reduced in a simpler manner. If necessary, several screens can also be provided for this purpose, which are arranged adjacent to each other or are provided movable towards each other and away from each other. It is easier to close an airflow opening with one or more screens than with multiple rotating blades. The air flow opening is hereby closed in a plane next to the plane in which the slats mainly extend.

With many possible embodiments, with such a screen in closed position, an improved airtightness with respect to the ventilation grids is obtained, whereby the slats are arranged rotatably in the ventilation grille for this purpose.

In the second position of the screen, in a ventilation grille according to this invention, by closing the air flow opening, not only the residual air flow is reduced, but this also limits the supply of all elements carried by air.

In addition to the improved airtightness, ventilation grids according to this invention also have an advantage in water resistance. This water resistance differs with the known such ventilation grilles according to slat shape or step. With a screen according to the invention, a markedly higher water resistance is now achieved in the second position, this in all possible embodiments of such ventilation grids.

BE2017 / 5267

In addition, with ventilation grids according to this invention there is also an advantage towards piercing safety. The class of piercing safety today varies with such ventilation grilles according to slat step and slat shape. With a screen according to the invention, the penetration safety for all possible embodiments of such ventilation grids is brought to the same class in the second position.

Furthermore, with ventilation grids according to this invention there is also an advantage towards dust infiltration. Today, this is not met due to the large slat step and the non-lockable character. With a screen according to the invention, a certain dust resistance can now be achieved in the second position.

The screen of a ventilation grille according to this invention can take many forms here.

This screen can, for example, be cloth-shaped, wherein this can also be manufactured from, for example, a woven fabric. Even if the fabric of such a cloth still comprises perforations, the air flow can still be limited quite well with this.

This screen can for instance also be plate-shaped.

This screen can, for example, also comprise several sections, such as, for example, with a roller shutter.

Preferably, a ventilation grille of this invention includes a screen guide on both lateral sides for mounting the lateral sides of the screen in the second position.

By fitting these lateral sides of the screen into screen guides, it is easy to make the ventilation grille better airtight on these sides. Certainly when these sides coincide with the sides at the ends of the slats, where the slat grilles had the greatest problem of airtightness,

BE2017 / 5267 hereby achieves a considerable advantage towards airtightness in the second position.

These lateral sides of the screen can, for example, be contained in these screen guides by providing these lateral sides of the screen with a thickening, such as, for example, a half-zip, which is received in a corresponding cavity in the corresponding screen guide.

Alternatively, instead of encapsulating these lateral sides of the screen in screen guides, for example, in the case of heavier screens, a flexible sealing edge of this screen could be connected to corresponding side walls of the grid frame to ensure better airtightness in the second position.

A particularly preferred embodiment of a ventilation grille according to this invention comprises a screen roller on which the screen can be rolled up and down. In this way little or no extra space must be provided next to the air flow opening to provide the screen movable between its first position and its second position. In its first position, the screen can be rolled up on the screen roller and in its second position, the screen can be unrolled from the screen roller, the screen being movable between the two positions by unrolling and rolling up the screen on the screen roller.

Alternatively, the screen could, for example, also be moved between its extreme positions by sliding this screen, as is the case, for example, with a sectional gate.

In embodiments of ventilation grids according to this invention in which the lateral sides of the screen are contained in said screen guides in the second position and wherein the screen is rollable and retractable on a screen roller, the screen guides are preferably provided for guiding the corresponding lateral sides of the screen during the up and down movement.

BE2017 / 5267

The screen roller of a ventilation grille according to the invention with a screen that can be rolled up and unrolled on a screen roller is preferably disposed almost parallel to the slats, since it is in this way easier to ensure an even better airtightness in the second position.

Furthermore, preferably such a ventilation grid comprises a screen box in which the screen roller is arranged, in order to limit as much as possible possible residual air flows next to the screen roller.

Preferably, such a ventilation grid comprises a bottom bar, which is attached to the end of the screen, away from the screen roller and is provided with a seal on its side away from the screen. In this way, residual air flows on this side of the screen are also prevented as well as possible.

The slats of a ventilation grille according to this invention are preferably fixedly arranged in the ventilation grille. In addition to the simplicity of implementation, this provides an additional advantage in terms of burglary resistance of the ventilation grille.

The present invention will now be explained in more detail with reference to the following detailed description of a preferred ventilation grille according to this invention. The purpose of this description is only to provide illustrative examples and to indicate further advantages and details of this ventilation grille, and can therefore in no way be interpreted as limiting the scope of the invention or the patent rights claimed in the claims.

In this detailed description, reference numerals are used to refer to the accompanying drawings, in which:

Figure 1 is a perspective view of a ventilation grille according to the present invention;

BE2017 / 5267

Figure 2 shows the ventilation grille from figure 1 in cut-away perspective;

Figure 3 is a view of the ventilation grille of figure 1;

Figure 4 shows a cross-section of the ventilation grille of figure 1, cut along plane A as indicated in figure 3.

In the ventilation grille (1) shown, several slats (3) are arranged parallel to each other in a grille frame (2). These slats (3) are hereby fixedly positioned in this grid frame (2).

The air flow opening (4), which is delimited by the grille frame (2), is divided by these slats (3) into several partial air flow openings (5).

A screen device is arranged behind the slats (3), with a screen (6) that can be rolled up on a screen roller (7) and can be rolled off from it. The screen roller (7) is incorporated in a screen box (8) to prevent residual air flow next to this screen roller (7) as much as possible. To further prevent residual air flow in the unrolled position of the screen (6), the lateral sides of the screen (6) in this unrolled position of the screen (6) are contained in screen guides (9). These screen guides (9) also guide these lateral sides of the screen (6) during its winding and unwinding movement. At the bottom of the screen (6) is mounted a bottom bar (10), which is provided with a seal (11) at the bottom in order to limit residual air flow on this bottom in the unrolled position of the screen (6).

The winding and unwinding movement of the screen (6) can be controlled manually, but can also be motorized advantageously. More specifically, such a ventilation grid (1) can, for example, also be provided with its own power supply, for example via a small photovoltaic cell.

BE2017 / 5267

Claims (8)

CONCLUSIONS Ventilation grille (1), comprising a grille frame (2) that defines an airflow opening (4), and comprising two or more slats (3), which are arranged substantially parallel to each other in the airflow opening (4) in the grille frame (2) characterized in that the ventilation grille (1) comprises a screen (6) movably provided between a first position for at least partially opening the airflow opening (4) and a second position for at least partially closing the airflow opening (4 ). Ventilation grille (1) according to claim 1, characterized in that the ventilation grille (1) has a screen guide (9) on both lateral sides for mounting the lateral sides of the screen (6) in the second position. Ventilation grille (1) according to one of the preceding claims, characterized in that this ventilation grille (1) comprises a screen roller (7) on which the screen (6) can be rolled up and down. Ventilation grille (1) according to claims 2 and 3, characterized in that the screen guides (9) are provided for guiding the corresponding lateral sides of the screen (6) during the winding and unwinding movement. Ventilation grille (1) according to claim 3 or 4, characterized in that the screen roller (7) is arranged almost parallel to the slats (3). Ventilation grille (1) according to one of claims 3 to 5, characterized in that the ventilation grille (1) comprises a screen box (8) in which the screen roll (7) is arranged. BE2017 / 5267 Ventilation grille (1) according to any one of claims 3 to 6, characterized in that the ventilation grille (1) comprises a bottom bar (10), which is attached to the end of the screen (6) away from the screen roller (7 ) and is provided with a seal (11) on its side away from the screen (6). Ventilation grille (1) according to one of the preceding claims, characterized in that the slats (3) are fixedly arranged in the ventilation grille (1). BE2017 / 5267 Eigd BE2017 / 5267