DE2910877A1 - VENTILATION GRILLE - Google Patents

Description

The present invention relates to a ventilation grille and a resultant thereto Parts set.

If a ventilation grille is to be installed in or on a wall, it can be used at the Erecting the wall permanently installed or subsequently after completion of the wall in or be attached to this. With the latter method the bricklayer creating the wall must have an opening of suitable size in the wall left. It corresponds to life experience that when masons have openings of suitable size should be left in a wall, the case rarely occurs that those left in the wall openings actually have exactly the desired dimensions. So if pre-made Ventilation grilles need to be inserted into such openings, it is often necessary all around the ventilation grille or the

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enlarge the opening before opening the ventilation grille can accommodate.

To overcome this problem it has already been proposed to use a set of parts to provide a ventilation grating which is manufactured in the factory and from which the ventilation grille is assembled on site. In this way one or the other part of the kit can be cut to size if necessary, when the ventilation grille is actually put together.

The present invention relates to a ventilation grille of this type, but may Ventilation grille according to the invention can also be used elsewhere, for example in a ventilation tower or attachment provided with such ventilation grids.

According to one aspect of the invention is a Ventilation grille provided with two slat carriers carrying a grille slat, wherein each lamellar support includes members attached to recesses formed in the lattice lamella attack or approaches and wherein the lattice lamella or the lamella carrier so sized or shaped are that when the links attack the recesses or approaches, the lattice lamella or the lamellar carriers are braced to achieve a firm mutual connection.

According to another aspect of the invention, a kit of parts for manufacturing a ventilation grille is provided provided, which comprises a plurality of slat carriers and at least one lattice slat and in which the lamellar carriers have links,

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ORIGINAL INSPECTED

which are intended to attack recesses or approaches on the lattice louvre and in which the lattice lamella or the lamellar carrier are dimensioned or shaped so that when the links attack the recesses or approaches the lattice slat or the slat support to achieve a solid mutual Connection are strained.

The set of parts preferably also comprises a channel profile for receiving the lamellar carriers. The channel profile, the lamellar support and the lattice lamellas are expediently made of material such as aluminum, extruded, but the lamellar supports can also be made of a construction made of plastic.

Further features of the invention emerge from the following description in context with the drawing.

Fig. 1 is a perspective view of an embodiment of the invention Ventilation grille;

Figures 2-4 are enlarged side elevational views of portions of the ventilation grille of Figure 1;

Fig. 5 is a perspective view of part of a second embodiment of the Ventilation grille;

Fig. 6 is an exploded view of the ventilation grille of Fig. 5;

Fig. 7 is a side view of a plate carrier for a further embodiment of the Invention;

Fig. Β shows part of a modified plate carrier;

9 shows a side view of a further embodiment with a modified one again Lamellar support;

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FIGS. 10-14 show schematic perspective views of further embodiments with protective grids dar;

Fig. 15 is a side view of another fin support;

Figure 16 is a perspective view of part of a corner between two lattice blades.

1-4 comprises an embodiment of the ventilation grille according to the invention two channel profiles 1, 2 made of aluminum or the like can be extruded and fastened with their longitudinal axes vertically to the wall will. The channel profiles 1, 2 are on both sides of an opening (not shown) in a wall attached, which has been left in the manufacture of the wall. Each channel profile 1,. 2 includes two parallel legs 3, 4 and a vertical web 5 between them a channel 6 is formed between the legs 3, 4 and the web 5 on the front side. On the A second channel 7 is formed behind the web 5 on the rear side. The web 5 of the channel profiles 1,2 can be provided with openings or slots that serve to accommodate screws, by means of which the channel profiles can be easily fixed in place.

In each front channel 6, several lamellar carriers 8 are attached. Each plate carrier 8 can by a section of an extruded aluminum profile or of another suitable material be educated. It comprises a vertical part 9 which can be slid in one of the front channels can be accommodated. The vertical part 9

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of the larch support 8 can be provided with a horizontal opening 10 in which a self-tapping screw can be attached which can engage the web 5 of the channel profiles 3 in order to fix the vertical part 9 of the slat support 8 in its position. Alternatively, the position of the lamella carriers 8 can also be fixed by means of self-piercing rivets. At its lower end, the lamellar carrier 8 is provided with an arm 11 pointing horizontally forwards, which at the end merges into a finger 12 pointing downwards. At its upper end, the lamella carrier 8 has a downwardly pointing finger 13 which runs essentially parallel to the downwardly pointing finger 12 ah the horizontal arm 11. The vertical part 9 also has a third downwardly pointing finger 14 which is arranged between the horizontal arm 11 and the second downwardly pointing finger 13, but closer to the second downwardly pointing finger 13 than to the horizontal arm 11 .

As indicated above, a plurality of lamellar carriers 8 are arranged in each of the front channels. They are attached in pairs, with one lamella carrier of each pair in each of the channels 6 is arranged and the plate carriers 8 of each pair are attached at the same height. The lamellar carriers 8 can be in each channel 6 by self-tapping screws or self-piercing rivets be fixed. If necessary, between the plate carriers 8 in the channels 6 can also not spacers shown must be used,

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in order to ensure compliance with a predetermined distance between the lamella carriers.

The lattice slats 15 are each supported by the slat carriers 8 of a pair. Each grid lamella 15 is made of aluminum or like extruded and preferably has a constant over its length Cross-section. The grid lamella 15 includes a flat part 16, which is on the downward pointing finger 12 on the horizontal arm 11 and also engages the third downwardly pointing finger 13. The grid lamella 15 extends down over the downward pointing finger

12 on the horizontal arm 11 and has an upwardly pointing lip 17 at its lowermost edge. The lip 17 forms a drain 18. which carries away any water falling on the louvre, for example rain. Through this will reduce as much as possible the cascading effect that occurs when heavy rain falls on the lattice slats falls and the water from one Slat cascades down to the next. The flat part 16 of the lattice lamella 15 extends is close to the third downwardly pointing finger 14, and another part 19 of the lattice lamella immediately in front of the vertical part 9 of the lamellar carrier 8 between the third downward facing Finger 14 and the second downward facing finger

13 directed upwards. The lattice lamella also has a / downwardly directed part 20, which is located just below the underside of the second downwardly directed finger 13.

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There is a spring clip 21 or the like is provided on the adjacent free ends of the second downwardly facing finger 13 and the part 20 of the lattice lamella snapped or unclipped, the one immediately below the second down pointing finger 13 is located. In this way the components are fixed to one another. Fig. 2 shows a particular arrangement of the finger 13, the. Part 20 and the spring clip 21 made of a flexible plastic or is preferably made of steel with a plastic coating.

On the underside of the lattice lamella 15 are two extending upwards and backwards Flanges 22, 23 attached to form the recesses or pockets 24, 25, on the one hand the downwardly pointing finger 12 on the horizontal arm 11 and on the other hand the third downward pointing finger 14. The lattice lamella 15 and the lamella carrier 8 are so dimensioned and shaped that when the downwardly facing fingers 12, 14 are placed in the pockets 24, 25 are, either the grid lamella 15 or the lamella carrier 8 or both are under tension or are tense. This can be achieved by having the finger 12 pointing downwards the free end of the horizontal arm 11 is given such an angle that the axis of this finger 12 does not exactly match that of the pocket 24, as can be seen from FIG. 3. Alternatively can also be the length of the horizontal arm 11 so

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be selected so that the downward pointing finger 12 at the end of the horizontal arm is not is aligned with the pocket 24. In each case the arrangement is such that one or both of the "limbs may be placed under tension or deformation when the finger 12 is inserted into the pocket 24 will. This is used to achieve a firm connection between the grid lamella 15 and the slat carrier 8, causing rattling and vibrations due to the wind or the like can be reduced as far as possible or even completely eliminated. With the ventilation grilles proposed so far, which had to be put together on the spot, a complicated arrangement of screws or the like had to be provided around this Reduce rattling as much as possible.

The third downward finger 14 can be provided with a shoulder or stop 26 on its underside. Accordingly, the rearwardly and upwardly extending flange 23, which the recess 25 for receiving of the third downwardly pointing finger 14 forms, with a corresponding approach or stop are provided, the lugs or stops 26, 27 come to attack when the Lattice slat 15 is brought into position on the slat carrier 8, whereby the strength, with that the grille is held in position can be increased.

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Although the invention has so far been described with reference to a completed ventilation grille, it relates can also rely on a set of parts to create such a ventilation grille. The set of parts comprises two channel profiles 1,, 2 or one Channel profile, which is then to be sawed into suitable lengths, several lamellar carriers 8, several Spacers to hold the lamellas in the channel, and several lattice lamellas 15 or a lamellar profile that is cut in lengths to form the lattice lamellas can be, as well as several spring clips or clips.

When assembling a ventilation grille from such a set of parts, first the two channel profiles 1, 2 in a suitable length on the wall on both sides of one already in the existing ventilation opening screwed. Then the lamellar carriers 8 mounted in the channels 6 and in horizontally aligned pairs in the desired positions attached so that each plate carrier 8 in a channel 6 a corresponding plate carrier 8 in the the same height in the other channel 6 is opposite. The grid slats 15 are if necessary Cut to exactly the desired length and then attached to the lamellar supports 8. the downwardly pointing fingers 12, 14 on the plate carriers 8 are in the pockets 24, 25 when Bringing the lattice slats 15 into position inserted. As a result, either the lattice lamella 15 or lamella carrier 8 or when placed under tension or deformation, so that the grid slats 15 are firmly mounted in their position

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and any rattling is reduced or suppressed. After all, the Spring clips 21 or corresponding snapping clips attached.

Virtually anyone can make a ventilation grille from a kit of parts of the type described above Dimension to be made.

If a ventilation grille according to the invention over a wide opening or over a series of adjacent openings can be three or more vertical Channel profiles are provided, the lattice slat in each channel on a slat carrier is supported. The middle channel profile or the middle channel profiles can be transverse extend over the opening and attached to the wall only above and below the opening be.

5 and 6 show a further embodiment of the invention in the form of a Ventilation grille with channel profiles 1 as in the embodiment described above and lattice slats 15 *.

In the web 5 of each channel profile 1, a series of openings 28 which are equidistant from one another is provided. There are several lamellar carriers 8 '. Each lamella carrier 8 ¹ is formed from a construction plastic, that is to say from a plastic that is very i $ rmsfdf, but still a little flexible. Examples of such plastic materials are polycarbonates and some acrylic plastics. Each lamella carrier 8 * comprises one

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vertical part 9 ', which has slotted rivets or pegs 29 on its rear side, which have wedge-shaped or conical mushroom heads 30 ". The heads 30 of the slotted pegs 29 can be pushed through the openings 28, the two parts of the peg by the action of the wedge-shaped mushroom head are pressed against one another at the openings 28. When the head of a pin 30 has passed through the opening 28, the pin 29 returns to its original shape and thereby fixes the lamella carrier 8 ¹ in its position.

Each lamella carrier 8 'comprises a horizontal one Arm 11 ', the one down at the end pointing finger 12 ', which with a pocket formed on the lattice lamella 15 · cooperates as has been described in the previous embodiment. To one To secure a very strong frictional attack, the finger 12 'can be forked, as can be seen in FIG or be slotted, the slotted parts of the finger 12 'are sprei zt outward, so that they attack tightly on the grid lamella 15 '.

The lamella carrier 8 'has at the upper end of the vertical part 9' a downwardly pointing finger 13 'which corresponds to the finger 13 in the exemplary embodiment described above. The lattice lamella 15 · has a flat part 16 'and an upwardly pointing lip 17' on the lower edge of the same, which forms a water drainage 18 *. At the upper end of the flat part 16 * of the grid lamella 15 * is a vertical one

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Part 19 'which rests against the vertical part 9' of the plate carrier 8 ^1. The vertical part 19 'of the grille lamella 15 * merges into a downwardly bent part 20 "which is located near the finger 13'. The part 20 'of the grille lamella 15' can be attached to the finger 13 'by a spring clip 21' or the like In order to improve the rigidity of the lamellar carrier 8 ', a triangular reinforcing web 31 can be provided which has a flat upper edge 32 which at least partially supports the flat area 16' of the lattice lamella 15 *.

Although only part of a ventilation grille according to this particular embodiment of the invention is shown in FIG. 5, several duct profiles 1 can of course also be provided which carry several grille slats 15 '. This embodiment of the invention is intended to produce very long ventilation grids by means of grille slats 15 'of a predetermined length, since each slat carrier 8 ¹ can accommodate the two ends of adjoining grille slats 15', so that the resulting ventilation grille looks like one with very long grille slats .

7 is a side view of a lamellar carrier 8 "according to a further embodiment of the invention, which in turn has slotted pins 29", a reinforcing ^{web 31 tv} and a finger 12 * ", which is provided at the end of a horizontal sleeve 11" _? where && r Fiagsr 12 ^8B xn die an c "::: G It -'- sr let 11 © 15 °° esbiHete pocket 24 ⁰⁰

. ; ■,: -Ii Ά i Q § i S § t ORIGINAL INSPECTED

4 *

The lattice lamella 15 ″ comprises a vertical part 19 ″ which is located in front of the vertical part 9 ′ ^{1 of} the lamellar support 8 ′ ¹ . The vertical part 19 ′ ends in a downwardly directed part 20 ″ which is arranged near a downwardly pointing finger 13 ″ which is provided at the upper end of the vertical part 9 ″ of the lamellar carrier 8 ¹¹ . In the upper surface of the after

The part 20 '' facing down is a right-angled one Approach or stop 32 "attached and a corresponding approach or stop 33 in the The lower surface of the downwardly pointing finger 13 ″ is provided.

When the grid lamella 15 ″ is in the operating position, the two projections or Stops 32 ″ 33 abut one another and hold the grid lamella 15 ″ firmly in their position. The part 20 "and the finger 13 · 'can also be used with external Grooves 34 may be provided in which a spring clip 21 ″ engages, which attach the components to one another holds on.

In the embodiment shown in FIG. 7, either the grille lamella 15 'or the lamella carrier 8 "are under tension or deformation when the ventilation grille is mounted in the manner shown in FIG. It is similar with the ventilation grille according to FIG. 1 and the modification shown in FIG. Although the split finger 12 'of FIG. 5 is described as a modification of the embodiment of FIGS. 5 and 6, a similar split finger can also be provided on the plate carrier 8 ¹¹ shown in FIG. 7.

ORIGINAL INSPECTED

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The channel profiles 1 can be made of any suitable material, if desired Made of plastic.

In the embodiments according to FIGS. 5-8, the lattice lamella engages a lamella carrier by means of a pocket that has the downward facing Receives fingers of the lamellar carrier at the end of the horizontal arm of the same. The lattice grille engages also on the lamella carrier, in which a downward angled part of the lattice lamella (at the end of the vertical part of the lattice lamella) with the uppermost downwardly pointing finger of the lamellar carrier cooperates. This can be viewed as having this finger pointing down of the plate carrier with the vertical part of the plate carrier a recess or a shoulder forms and the combination of the downwardly angled part of the grating lamella and the vertical part of the lattice lamella represent a corresponding approach. In the one shown in FIG Of course, there are also other embodiments interlocking approaches are provided.

9 shows a further modified embodiment of the invention with two lamellar supports 41 arranged one above the other and two lattice lamellas 42 carried by them. The parts of this embodiment which correspond to the exemplary embodiments described above are not described in detail. The downwardly pointing finger 43 at the upper end of each lamella carrier 41 is, however, provided with a formation 44 provided at the end, which forms a stop at the free edge

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of the immediately adjacent parts 45 of the lattice lamella 42 attacks. The arrangement is such that the finger 43 on the projection 44 at in Position brought grid lamella 42 is slightly under tension. The one pointing downwards Finger 46 at the end of the horizontal forwardly extending arm is on its underside provided with a substantially V-shaped groove 47. The part 48 of the lattice lamella 42, which forms the channel for receiving the finger, is with a correspondingly designed V-shaped Protrusion 49 or such a rib provided so that when the finger 46 is inserted into the pocket the V-shaped projection 49 on the part 48 of the grid lamella 42 which forms the pocket in the Groove 47 comes into engagement and a firm lock between the finger and the lattice slat 42 results. The plate carrier 41 also has a substantially triangular projection on its underside 50, one inclined surface 51 of which is essentially connected to the adjacent surface 52 of the uppermost downwardly pointing finger 43 of the next lying lamella carrier 41 is parallel. While in the drawing the surface of the protrusion 50 from the surface of the adjacent down pointing finger 43 is spaced, in practice these two surfaces are essentially to each other, whereby the overall stability of the arrangement is increased.

Other variations to be noted are an upwardly facing flange 53 on the surface of the lattice lamella 42 in its upper area and another flange 54 pointing inward at their lower part. These flanges form

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with the remaining part of the lattice lamella 42 exceptions 55 and 56, which can accommodate parts of a protective screen * against birds, vermin, mosquitoes or mosquitoes, as will be described in detail below. It should also be noted that the end lip 57 of the grid lamella 42 points downward instead of upward.

Fig. 10 shows a lattice lamella 42 corresponding to Fig. 9, the lamellar supports 41 for the sake of clarity have been omitted from the illustration.

A protective grille 58 is mounted between the two hustichmnqen 55, 56 on the adjacent grille slats, which extends essentially horizontally from the recess 55 at the lowest part of the one grille slat 42 to the recess 56 at the upper end of the grille slat 42 initially below. In the present embodiment, the protective grille 58 consists of a substantially flat plate made of plastic or metal, which is provided with regular perforations. The free edges of the plate made of plastic or metal have ribs 59 of a substantially triangular cross-section. The arrangement is such that the protective grille 58 can be pushed into its position between the two grille slats 42 and then acts as a reinforcing element between the two grille slats 42, since the protective grille can be pushed in at two recesses 55 _? -56 with the wedge-like surfaces of the triangular cross-section on each hip 59 firmly engages, so that the stability of the arrangement is increased.

The illustrated embodiment of the invention comprises a bird screen 58, to prevent birds from getting between the lattice slats. The perforations but can also be smaller, so that the arrangement prevents the ingress of vermin, such as Rats or mice, between the lattice slats 42 prevented. When the perforations are very are small, the protective grille can prevent mosquitoes, mosquitoes or other flying birds from entering Stop insects.

FIG. 11 shows a further exemplary embodiment of the invention, which is similar to that of FIG is very similar, with the only exception that the lip 60 is on the lower edge of each grille blade 42 'points upwards instead of downwards. Fig. 12 again shows a further embodiment of the invention, in which the protective grille 61 with a thickening 62 circular cross-section along one edge and an oval thickening 63 along the other Edge is provided and the thickenings 62, formed in suitable on the lattice slats 64 Channels intervene

Fig. 13 shows yet another embodiment of the invention in which sine Another embodiment of the protective grille 65 between the adjacent grille slats 66 is arranged. The protective grille 65 consists of a wide U-profile in the bottom the perforations are attached, while the legs of the "U" with POP rivets 67 or others Way attached to opposite flat surfaces of the adjacent grid slats βS are. In this embodiment, jade

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Grid lamella 66 has a downwardly facing lip 68 on its free edge, the one has inwardly pointing back plan 69 at its lower edge. In this embodiment, the protective grille 65 is fixed in its Position mounted and thus contributes to increasing the overall stability.

Fig. 14 shows a further embodiment, in which the protective grille 70 has the shape of a sieve intersecting planar members has, wherein the screen can be made of metal or plastic and between the two each other opposing flat surfaces 68, 7 t of the adjacent lattice slats is clamped. In this way, the protective grille 70 slightly forces the grille slats apart and stiffens them so the arrangement.

In all of the above-described exemplary embodiments with a protective grille, the Protective grille supplied in suitable lengths. At each end of each length of the protective grille a reinforcing rib or the like can be provided so that each protective grille part is surrounded by a substantially rigid frame. However, it is also conceivable that the end edges of each protective grille part has a zone that is only half the thickness of the Has the remainder of the protective grille, so that these zones of half the thickness of the corresponding zones the adjacent protective grille are superimposed and to each other by gluing, renting or in another suitable. Way can be attached.

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It has been found that louvered ventilation grilles which do the above Use the bird or vermin protection grids described, even with relatively large openings in the protective grille as well as improving the overall stability of the grille arrangement an improvement in the ventilation properties of the arrangement occurs. That's how it is with bad Weather the amount of rain sucked in through the ventilation grille is less than if the ventilation grille is not equipped with a bird protection grille is. This is a surprising and beneficial result.

Fig. 15 is a side view of the lamellar carriers of Fig. 9. On the upright part thereof Slotted pins 72 are arranged to fix the disk carrier serve in suitable openings in the load-bearing channel profiles. The pins 72 include two elongated portions, each of which has a suitable tapered surface 73 and a shoulder 74 and which are separated by a suitable slot. The pins 72 are elongated by suitable openings in the duct profiles pressed through, to fix them in place. So that the plate carriers 41 do not become loose, for example when the material of the lamellar support changes in temperature and due to the thermal expansion coefficient expanding or contracting, toothed parts 75 are provided which are slotted between the two parts of each Pin 72 can be driven to this

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to drive apart firmly and ensure that the plate carrier 41 is permanently firmly in place its position is fixed. Each wedge 75 can be made of plastic and have serrated surfaces although a wedge of any other suitable design can also be used can.

The lattice slats of the invention can not only cover openings in walls but can also be used to form ventilation attachments. Such a ventilation attachment ζ is a square construction with Extend ventilation gxtter. The ends of the ventilation gxtter are mitred to each other connected to ensure a pleasant appearance and a weatherproof training. When manufacturing such a ventilation attachment, suitable load-bearing channel profiles are used first attached in place and then the lamellar supports on the duct profiles attached. Grid lamellas 76 with lips 77 pointing downwards are used. The lattice slats are miter cut and in the manner described above on the lamellar supports with the mitered ends 78 touching, as in FIG. 16 shown. To ensure a rigid connection in the area of each of these corners is a substantially L-shaped connecting member 79 is provided which comprises two flat arms, which lie in planes that form an angle with each other

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form so that the connecting member 79 is pushed into adjacent ends of the channels 80 Can be., which are provided at the lower end of each plate carrier to accommodate the pinger.

Such L-shaped connecting links 79 can alternatively also be used to form re-entrant corners, so that in a simple manner "Convex" and "concave" corners can be made. It should also be noted that with one Embodiment of the invention in which the The lattice slats should form a rectangular or square tower on the free edges of the lattice slats downwardly facing lips 77 are provided, otherwise an endless water drainage that would only hold the water tight and make no sense. If one down facing free edge is available, clips can be provided that the downward facing free Grip around the edge in the area of each corner.

9 0 9 8 4 0/0 6 5 1 'original inspected

Claims (23)

Claims. f 1. ) Ventilation grille with two lamellar supports which carry at least one lattice lamella, characterized in that each lamellar support (8) comprises members (12, 13) which engage recesses or lugs (22, 20) formed on the lattice lamella (15) , and that the lattice lamella (15) or the lamella carrier (8) are dimensioned or shaped so that when the members (12, 13) attack the recesses or the lugs, the lattice lamella (15) or the lamella carrier (8) to achieve a fixed mutual connection are braced. 2. Ventilation grille according to claim 1, characterized characterized in that the lamellar support (8) has a vertical part (9) and a horizontal part (11) include, which ends in a downwardly directed finger (12), while on the lattice lamella (15) a recess (24) is provided for receiving the finger (12) forming one of the links. 909840/0652 3. Ventilation grille according to claim 2, characterized in that the recess (24) and the Finger (12) are dimensioned and arranged in such a way that, when the grille lamella (15) is in the correct position, can only come into engagement with tension either the grid lamella (15) or the finger (8). 4. Ventilation grille according to claim 2 or 3, characterized in that the finger (12 ·) of the Split lengthwise into two splayed parts. 5. Ventilation grille according to one of claims 2 or 3, characterized in that the finger (46) and the recess (48) are provided with interacting projections (49) or recesses (47) are. 6. Ventilation grille according to one of the claims 1 to 5, characterized in that a part (19, 20) of the lattice lamella (16) approximately in the vicinity of the topmost Area of the vertical part (9) of the lamellar support (8) and also in the vicinity of another, downwards pointing finger (13) is located at the uppermost end of the vertical part (9) of the lamellar support (8), wherein the part (19, 20) of the grating lamella (15) one of the approaches and the uppermost area of the vertical part (9) of the lamellar carrier (8) and the further downward pointing finger (13) form the corresponding recess. 7. Ventilation grille according to claim 6, characterized in that a spring clip arrangement or a snap connection (21 ¹¹ ) are provided which at the free ends of the uppermost downwardly facing finger (13 ¹¹ ) and the adjacent part (20 ¹¹ ) of the lattice lamella (15 ^ attacks. 909840/065? ORIGINAL INSPECTED _ 3 - - - 8. Ventilation grille according to claim 6 or 7, characterized in that on that surface, further downwardly pointing fingers (13 ¹¹ , 43) against which the part (19 * ', 20 ¹¹ , 45) rests, a recess or a shoulder (33, 44) are provided and corresponding approaches or recesses are formed in the lattice lamella (15). 9. Ventilation grille according to one of claims 2 to 8, characterized in that the lamella carrier (8) with a further downwardly facing Finger (14) is provided from a point between the ends of the vertical part (9) of the lamellar support (8) goes out, and that on the lattice lamella (15) a further recess (23) for receiving this further downwardly pointing finger (14) is formed. 10. Ventilation grille according to claim 9, characterized in that the further pointing downwards Finger (14) and the corresponding recess (25) with additional cooperating lugs (26, 27) is provided. 11. Ventilation grille according to one of the claims 1 to 10, characterized in that a projection (50) is provided on each lamella carrier (41), the * "of the lattice lamella and Sem lamellae carrier next Attacks adjacent lattice louvre. 12. Ventilation grille according to one of claims 1 to 11, characterized in that a channel profile (1, 2) is provided in which a part (9) of the plate carrier (8) engages slidably. 13. Fan grille according to claim 12, characterized in that self-tapping screws or self-piercing rivets (10) are provided to fix the plate carrier (8) in its position. 909840/0652 14. Ventilation grille according to claim 12, characterized in that the channel profile (1, 2) is provided with several openings (28) and the lamella carrier (8 ¹ ) is provided with several blind connections (29) which engage in the openings (28) and the lamella carrier (8 ¹ ) in his. Determine position. 15. Ventilation grille according to one of claims 1 to 14, characterized in that wedges (75) are provided to provide a firm connection between the blind connections (72) and the channel profiles (1, 2). 16. Ventilation grille according to one of claims 1 to 15, characterized in that the lamella carrier (8) is extruded from aluminum. 17. Ventilation grille according to one of claims 1 to 16, characterized in that the lamella carrier (8) made of a construction plastic is. 18. Ventilation grille according to one of claims 1 to 17, characterized in that an im essential, horizontal protective grille (58) is provided, which is adjacent between each other Lattice slats (42) extends and engages tightly on these. 19. Ventilation grille according to claim 18, characterized in that the protective grille (58) is a rigid one Sieve is. 20. Ventilation grille according to claim 18 or 19, characterized in that the protective grille (58) comprises 6 feathers (59) which are wedged into the Attack lattice lamellas (42) formed recesses (55, 56). 909840/0652 CRiGIiMALiNSPECTED 21. Ventilation grille according to claim 18 or 19, characterized in that the protective grille at (67) is riveted to the grid lamellas (66). 22. Fan grille arrangement with two fan grids according to claims 1 to 21, characterized in that that the grille slats (76) of the fan grille at (78) are cut to miter and a substantially L-shaped connector into those formed on the grille slats (76) Channels (8) is used. 23. Set of parts for producing a ventilation grille according to one of claims 1 to 22, characterized characterized in that the set of parts has several slat carriers (8) and at least one lattice slat (16) comprises and the lamellar carrier (8) members (12, 13) which are for engagement with recesses or Approaches (22, 20) on the lattice lamella (15) are determined, and that the lattice lamella (15) or the lamellae carrier (8) are dimensioned or shaped so that when Attack of the members (12, 13) on the recesses or lugs (22, 20) the grid lamella (15) or the plate carriers (8) are braced to achieve a firm mutual connection. 90984 0 / QESt _oraG1NA L-INSPECTED