BE1024275B1 - Construction means intended for forming a floor above a ventilation cellar of a storage shed for agricultural products and method for mounting and adjusting such floor with the aid of such construction means. - Google Patents

Abstract

Construction means (3) intended for forming a floor (45) above a ventilation cellar (46) of a storage shed (47) for agricultural products (48) comprising at least one concrete floor plate (1) with a first floor plate surface (4) intended is to form the top (5) of the floor (45), the concrete floor plate (1) being provided with ventilation passages (12) through the concrete floor plate (1), which have such a shape that control means in the form of one or a plurality of plastic inserts (2.37, 41, 43) for controlling the percentage of opening in the concrete floor plate (1) can be arranged and retained along the first floor plate surface (4) in the ventilation passages (12).

Description

(30) Priority data:

(73) Holder (s):

VDV R&D BVBA 2310, RIJKEVORSEL Belgium (72) Inventor (s):

VAN DER VELDEN Gert 2321 MEER / HOOGSTRATEN Belgium (54) Construction means intended for forming a floor above a ventilation cellar of a storage shed for agricultural products and method for mounting and adjusting such floor using such construction means.

(57) Construction means (3) intended to form a floor (45) above a ventilation cellar (46) of a storage warehouse (47) for agricultural products (48) comprising at least 10 a concrete floor slab (1) with a first floor slab surface (4 ) which is intended to form the top (5) of the floor (45), the concrete floor slab (1) being provided with ventilation passages (12) through the concrete floor slab (1), such that control means under the shape of one or more plastic inserts (2,37,41,43) for controlling the percentage of opening in the concrete floor slab (1) fitting along the first floor slab surface (4) in the ventilation passages

FIG 14 (12) can be applied and 20 held.

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1024275 Filing number: BE2016 / 5852

Intellectual Property Office

International Classification: A01F 25/08 F26B 25/10 Date of Issue: 11/01/2018

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 12/11/2016.

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

VDV R&D BVBA, Leemputten 20, 2310 RIJKEVORSEL Belgium;

represented by

VAN HUNSEL Lieven, Arenbergstraat 13,2000, ANTWERP;

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 Code of Economic Law, for: Construction equipment intended to form a floor above a ventilation cellar of a storage warehouse for agricultural products and method for mounting and adjusting such a floor using such construction means.

INVENTOR (S):

VAN DER VELDEN Gert, Meerseweg 135A, 2321, MORE / HIGH STREETS;

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, 11/01/2018,

With special authorization:

BE2016 / 5852

Construction means intended for forming a floor above a ventilation cellar of a storage shed for agricultural products and a method for mounting and adjusting such a floor using such construction means.

The present invention primarily relates to construction means intended for forming a floor above a ventilation cellar of a storage shed for country products.

More specifically, the present invention relates to such construction means comprising at least a concrete floor slab with a rectangular or substantially rectangular perimeter with a first floor slab surface intended to form the top of the floor and on which the agricultural products are to be applied and a second floor slab surface which is intended to form the underside of the floor and which must be directed to an underlying basement

The construction means according to the invention are typically suitable for making floors above a ventilation cellar of a storage shed for storing agricultural crops, such as tuberous plants, cereals or vegetables, for example typically for storing potatoes, onions, grain and the like.

Such storage sheds are often fairly large hangars that are built above an underlying ventilation cellar.

BE2016 / 5852

The ventilation ladder forms an underlying open space in which fresh air is drawn in by means of ventilation, this air is further blown from the ventilation cellar between the agricultural products to be stored.

A large number of construction means are already known with which such a floor can be assembled and they usually consist of concrete floor slabs which are arranged side by side on underlying walls, which are erected in the ventilation cellar.

Ventilation openings or ventilation passages are left in and / or between the concrete floor slabs so that air can flow.

This air is blown into the ventilation cellar with the aid of the aforementioned Fans, the air then continuing its way through the openings and between the agricultural products present, this with the intention of protecting the agricultural products against spoilage,

However, these known construction means of the aforementioned type have a number of drawbacks.

A first important drawback of these known construction means is that they are very easily damaged by the machines or vehicles driving over a floor which is assembled with construction means.

such

BE2016 / 5852

This is increasingly the case as storage sheds are increasing, the distances to be driven when storing and sanding out the agricultural products to be stored or preserved are increasing, the machines and vehicles used are getting heavier and so on.

Another important disadvantage of the known construction means of the type in question consists in that a floor manufactured with it is only adaptable to a limited extent or that adapting it is very difficult.

For example it can be used a n db o u wp r o du c t e n.

so that the same storage warehouse preferably for storing different ones

However, different types of agricultural products have different average dimensions and the ventilation openings are provided in and between the concrete

floorboards from serve the floor the agreements tige average afme ting adjusted are in order to avoid Which too big fraction of the

agricultural products are damaged during the bragging work when the agricultural products are sanded out with the appropriate vehicles or means.

Typically too large an opening for a crop that is too small will result in the crop being cut at the opening during the scooping, which is of course undesirable

BE2016 / 5852

Adjusting the ventilation openings according to the type of crop to be stored is often simply not possible in a floor manufactured for such storage sheds with the well-known trick tricks.

In other cases, such adjustment of the size of these vents is only possible within a very limited range and is usually far from simple and / or inflexible.

Another major problem. that occurs with the floors manufactured with the associated construction means, it is very difficult to control the degree of air flow from the ventilation cellar through the agricultural products to the storage shed.

In particular, it is true that a storage shed is typically not always completely filled or is only gradually filled, so that an adjustment of the ventilation openings in the floor in function of the covering on the floor is desirable,

An adjustment of the ventilation openings in a floor which is manufactured with the known construction means is, as already stated, far from evident.

According to a known technique, alternatively the floor of the ventilation cellar is not level, but slanted, which is, however, a very costly affair

BE2016 / 5852

In addition, it makes vertical construction of the walls in the ventilation cellar and the leveling of the floor of the storage shed more difficult.

Small structural outsides can also lead to catastrophic consequences because of the loads that are placed on such floors from the high pressure to the stored agricultural products and vehicles that drive on the floor.

Also, other agricultural products, different weather conditions or other climatic conditions (the climate in Canada, for example, is not the same as in Europe) and so on, requires adjusted airflow rates through the agricultural products, sometimes creating a new need in the floor be able to change existing ventilation openings in function of the required ventilation.

A known way of changing the openings in the floor of a storage shed is to provide a steel wire in the openings, but such a method could be improved.

Another important drawback of the known construction means in the form of concrete floor slabs for manufacturing. The floor of a storage shed consists in that its length is limited because of the high loads that are applied to it.

BE2016 / 5852

In recent circumstances, vehicles such as these that can carry loads of up to 20 tons per axle can be loaded on such floor plates.

However, standard concrete floor slabs of 200 mm thick and one meter wide are used in the sector.

In addition, in the known construction means in the form of concrete floor slabs, elongated ventilation openings or ventilation passages are moreover usually used for ventilation, so that the load-bearing capacity of such concrete floor slab is somewhat limited.

In such an embodiment and because the thickness of such a concrete slab is preferably limited to 200 mm, the maximum span that can be achieved with such a slab should be limited to 2.5 m in function of the applied loads.

This means that walls have to be erected every 2.5 meters in the ventilation cellar, which is very expensive.

This is all the more problematic, since older ventilation cellars are fitted with walls with a spacing of 3 meters, which was possible because less heavy vehicles were used, for example vehicles that can carry a maximum load of 10 tons per axle,

The present invention therefore aims to provide a solution to one or more of the aforementioned or possible arid disadvantages.

BE2016 / 5852

More specifically, the object of the invention is to provide construction means with which an floor can be manufactured efficiently from a storage shed and wherein such floor is easily adaptable in function of the needs, in particular in function of the covering of the floor, depending on the type of agricultural product stored on it or depending on the desired flow rate of air flow through the floor, whether or not on a local part of the floor.

Another object of the invention is to reduce the cost of manufacturing a floor for a storage shed.

A further aim of the invention is to provide construction means which are more resistant to damage from vehicles and machines and which can withstand greater static and dynamic loads than is currently the case with the known construction means.

To this end, the invention relates to construction means with the characteristics of the préambule of claim 1 and as already described above, wherein according to the invention the concrete floor slab of the construction means is further provided with ventilation passages through the concrete floor slab, the ventilation passages having such a shape that control means under the shape of one or more inserts for controlling the percentage of opening in the concrete floor slab fitting along the first floor slab surface in the ventilation passages r

BE2016 / 5852 can be applied and whereby such an inserted insert is retained by the shape of the respective ventilation passage.

A great advantage of such construction means according to the invention is that the concrete floor slabs thereof are provided with ventilation passages with a special shape adapted to insert and hold inserts in them.

Thus, the diameter of such a ventilation passage can easily be reduced or such ventilation passage can be completely blocked for air flow through the insertion of a said insert.

In short, the openings provide a floor made with

c ο n st r u c t i e m i dd e .1 e n according to the invention to be. very easy to ρ axes function of the covering on the floor. h e t s ο o r t .1 a. n db old product that on it stored and / or it too accomplish airflow through the floor and both on a very .1 local pitch in

spread the floor over the whole floor.

In a preferred embodiment of construction means according to the invention, the ventilation passages are constructed with a cross-section, whereby a cross-section becomes parallel to the floor surfaces. intended, which exhibits any of the following:

- the cross section is circular;

BE2016 / 5852 the cross section is in the form of a regular polygon; or,

- the largest dimension of the cross section is maxima.1 twice as large as the smallest dimension of the cross section.

B:

such constructions according to the invention, the dimensions of the passage directions parallel to floorboard surfaces are appropriate, at least in case a circular cross-section is used, or substantially in the case of a cross-section with another form is applied.

The ventilation passages thus form an opening through the concrete floor slab with a cross section which on the one hand has reasonably large dimensions, since such a ventilation passage must be suitable for inserting an insert into it, but on the other hand it has reasonably small dimensions compared to, for example, the cross section of the elongated ventilation passages that are used with the known concrete floor slabs.

An advantage of such an embodiment of construction means according to the invention is that a large air flow can be realized very locally through the concrete floor slab, while the floor slab is minimally weakened by the presence of the ventilation passages, whereby higher loads on such concrete floor slab can be tolerated.

BE2016 / 5852

Another advantage of this embodiment of construction means according to the invention is that the dimensions of such a ventilation passage are reasonably local, so that the adjustment of the openings in such a concrete floor slab can take place very locally.

In a further preferred embodiment of construction means according to the invention, the ventilation passages are of equal design and are spread over the surface of the concrete floor slab in a regular pattern.

A uniform design of the ventilation passages naturally has the advantage that inserts with a uniform outer wall can be used, so that the insertion of such inserts can take place without any problem.

By distributing the ventilation passages over the floor slab surface in a regular pattern, it is also easy to regularly flow through the concrete floor slab. with air.

Depending on the pattern applied where the

ventilation doc closed corridors Bee each other or far from it each other to be placed, can the 1 u c h t do o r s t r o m i n g d o o r h e e n the bet sonnen floor plate r o f become less local at

regularly.

In a further preferred embodiment of construction means according to the invention, the construction means comprise besides the aforementioned concrete

BE2016 / 5852 floor plate also includes plastic inserts with an external shape that is complementary to the internal shape of the ventilation passages and which can be fitted or fitted in the ventilation passages in a suitable manner and thus can be held or held in the relevant ventilation passage.

In order to effectively control the size of the openings in a floor, it is of course the intention that in addition to the concrete floor plates, inserts are also provided with a shape that is complementary to the shape of the ventilation passages and where these inserts are provided or not of a passage, the dimensions of which may also differ from one another

Construction means according to the invention are preferably provided with concrete floor slabs, the ventilation passages of which are made somewhat conical, in particular, such ventilation passage decreases somewhat in dimensions from the second floor slab surface of the concrete floor slab in the direction of the first floor slab surface of the concrete floor slab.

A great advantage of such an embodiment of construction means according to the invention is that when an insert is inserted in a ventilation passage which is formed with such a conical shape, this insert does not return too easily from the ventilation passage and is somewhat retained therein;

This is to prevent that while driving with vehicles over a floor, such as

BE2016 / 5852 construction means, the inserts would automatically come out of the ventilation passages.

On the other hand, the top angle of the applied cone should be fairly small to allow such inserts to be removed from a ventilation passage again.

Of course, according to the invention, it is not excluded to provide ventilation passages with a completely different shape or, for example, in which such a ventilation passage is of somewhat conical design and wherein such ventilation passage in particular increases somewhat in dimensions from the second floor slab surface of the concrete floor slab in the direction of the first floor slab surface. of the concrete floor slab.

The invention also relates to a method for marching and regulating a floor above a ventilation cellar of a storage shed for agricultural products using construction means according to the invention as described above.

More specifically, such a method according to the invention comprises at least the following steps:

- to form a floor by supporting concrete floor slabs adjacent to each other on walls arranged parallel to each other in the ventilation cellar, each of the two ends of the concrete floor slabs being supported on an underlying wall to span the intermediate space between them. walls; and, regulating the air flow opening through the floor, using or not using one

BE2016 / 5852 or several coastal fabric inserts that can be fitted appropriately in a corresponding ventilation passage.

With the insight to better demonstrate the features of the invention, an exemplary embodiment of construction means according to the invention, as well as a method according to the invention, with reference to the accompanying figures, in which:

figure 1 shows in perspective a concrete floor slab which forms part of construction means according to the invention;

figure 2 shows a larger-scale side view according to arrow F2 on the concrete floor slab of figure 1;

figure 3 shows a larger cross-section along the line ΙΙΙ-ΙΙΙ 'through the concrete floor slab of figure 1;

figure 4 is a larger-scale plan view according to arrow F4 on the concrete floor slab of figure 1;

figures 5 and 6 show a larger-scale side view and a cross-section according to arrow F5 and line VI-VI 'on the concrete floor slab of figures 1 and 4, respectively;

figure 7 shows on an even larger scale the part of the cross-section indicated by F7 in figure 6;

BE2016 / 5852 figure 8 shows on an even larger scale the part of the cross-section indicated by F8 in figure 7;

figure 9 shows a perspective view of an angle section;

represents figure 10 on a larger scale according to arrow FI. Arrow F9 in figure 2 shows the corresponding top view of the section 'X';

figure 11 shows an enlargement of the corresponding corner part in perspective according to arrow F11 in figure 2;

Figure 12 is a larger-scale plan view according to arrow F12 of the portion represented by FXII;

figure 13 represents the cross section of figure 3,

on which also some possible embodiments from i n s s t t k k e n d i e part make up of the c o n s st ru c t i emi dde1e n according to the invention in section are shown give, and. Figure 14 in intersection the use from c o n s t r u c t i. e m i d de 1. e n according to the invention thing

illustrates.

In the. concrete floor slab 1 shown in figures 1 to 12 and inserts 2 shown in figure 13 are part of construction means 3 according to the invention.

The concrete floor slab 1 has. a first floorboard surface 4 which is intended to form the top 5 of a floor of a storage shed, as well as a second floorboard surface 6 which is intended to

BE2016 / 5852 to form bottom 7 of the floor and that must be directed to an underlying basement during installation.

The concrete floor slab 1 has a mainly rectangular shape with two longitudinal sides 8 and 9 and two short ends 10 and 11.

Furthermore, the concrete floor slab 1 is provided with ventilation passages 12 which extend through the entire thickness D of the concrete floor slab 1.

These ventilation passages 12 are of uniform shape and distributed in a regular pattern over the surface of the concrete floor slab 1,

More specifically, in this case the ventilation passages 12 were placed in three parallel rows 13, 14 and 15, each row 13 to 15 containing fourteen ventilation passages 12 and extending parallel to the longitudinal sides 8 and 9 and the ventilation passages 12 being more or less mutually according to a rectangular grid pattern 16.

Of course this is only a possible embodiment and according to the invention the most diverse other configurations can be used.

Generally stated, according to the invention it is the object of the ventilation passages 12 to be designed in such a way that the inserts 2 suitably fit along the side of the first floor plate surface 4 in the

BE2016 / 5852 ventilation passages 12 can be fitted and whereby such insertion becomes insert 2 in the form of the relevant ventilation passage 12. held.

The inserts 2 hereby form a kind of control parts for controlling the percentage of opening in the concrete floor slab 1, whereby this percentage can be adjusted by inserting more or less of these inserts 2 in the ventilation passages 12 or by inserting inserts 2 with a modified form, as will be discussed in more detail below.

In this case, the ventilation passages 12 are formed with a cross-section 17 parallel to the solid shape but floor surfaces 4 and; ventilation passages 12 which are formed with a cross-section 17 which has a, for example, a different shape, such as a square cross-section and the like, which are again not excluded from the invention.

According to the invention, however, it is preferably the case that the largest dimension or diameter in such a cross-section 17 parallel to the floor surfaces 4 and 6 is at most twice as large as the smallest dimension or diameter in such a cross-section 17.

In short, it is the intention that the shape of a ventilation passage 12 in cross-section 17 is not too much. to deviate from the circle shape (and for example not to be too narrow and elongated), so that an insert. 2 can easily become in such a ventilation passage 12

BE2016 / 5852, the strength of the concrete floor slab 1 is influenced as little as possible and the air flow through the concrete floor slab 1 can be adjusted as locally as possible.

Following the invention i s it Furthermore also preferably like this that the ventilation passages 12 to be executed right away wall 18 .ie about virtually the whole thickness D. of the l setons lurking plate 1 perpendicular or almost perpendicular ορ the lure board surfaces < 1 and 6 state or d: ie somewhat conical

is carried out.

In the embodiment shown in the figures, this wall 18 is somewhat conical over a very large part of the thickness D, in particular over its height H.

This wall 18 extends according to directions YY 'making an angle E with the perpendicular ZZ ^f on the floorboard surfaces 4 and 6.

This angle E is half of the vertex angle F of the corresponding cone 19.

The portion 20 of the wall 18, which is conical, extends from the second floor slab surface 6 to a height H thereof.

The ventilation passage 12 hereby decreases somewhat in dimensions from the second floor slab surface 6 of the concrete floor slab 1 in the direction of the floor slab surface 4 of the concrete floor slab 1.

first

BE2016 / 5852

This, of course, has the advantage that when an insert 2 is brought into such a ventilation passage 12 from the side of the first floor slab surface 4, this insert 2 is not automatically returned from the ventilation passage 12 in a reverse movement due to the conical shape of the ventilation passage 12. coming.

After all, the cone 19 is widening in the direction of the second floor plate surface 6, but tapering in the direction of the first floor plate surface 4

Another important aspect of the embodiment of the ventilation passages 12 of the concrete slab 1 shown in the figures is characterized in that these ventilation passages 12 are provided with a widening 21 on the first floor slab surface 4 of the concrete floor slab 1.

This widening 21 is intended to accommodate a corresponding external complementary flange 22 on the periphery 23 of an insert 2.

Such an embodiment is extremely interesting, since the widening 21 and the corresponding flange 22 prevent an insert 2 from moving from the first floor slab surface 4 towards the second floor slab surface 6.

In the case of a fully conical design of both the ventilation passages 12 and the complementary inserts 2, such an insert 2 would, of course, be

BE2016 / 5852 ventilation passage '12 falls into the underlying ventilation cellar, which is thus prevented by the flange 22,

It is clear that the example illustrated here is only one of the many possibilities of constructing a concrete floor slab 1 with ventilation passages 12 suitable for fitting complementary inserts 2 in such a way that they are somewhat retained, for example to. to withstand the forces exerted by the wheels of vehicles driving over such concrete slab 1.

It is of course the intention that the inserts 2 can also be removed from a ventilation passage 12 in a not too difficult manner in order to be able to change the percentage of opening in the concrete floor slab 1 "

The combination of a 1 ichtjes conic shape 20 and a widening 21 is a very efficient solution for this, but does not exclude other solutions.

As another general principle of the invention it can be stated that a concrete floor slab 1 of construction means 3 according to the invention is preferably provided on the pair of opposite longitudinal sides 8 and 9 with complementary connecting means 23 which are intended for the fitting and adjacent mounting of several of to facilitate such uniform, concrete floor slabs 1 side by side.

BE2016 / 5852

In the example of the figures, this has been achieved by providing a pair of protrusions 24 to a first longitudinal one

side 9 , of which one copy more in detail i. n the figures 9 and 10 is shown, and a few c o mp1eme ntaire grooves 25 to be provided on the opposite side iggende long side 8 , of which one copy more ln detail 1 n de figures 11 and 12 is shown.

At least a portion 26 of the protrusions 2 4 of a first concrete floor slab 1 can be fitted in this way in the complementary grooves 25 of a second uniform concrete floor slab 1 which is placed adjacent to the first concrete floor slab 1.

In the case of the figures, the aforementioned protrusions 24 are furthermore provided with a widened part 27 with a minimum width Q which is greater than the width R of the aforementioned groove 25.

Thus, this widened portion 2 7 cannot become in the aforementioned groove 25 and a longitudinal groove is left between such uniform concrete floor slabs 1 which are placed adjacent to each other.

Most preferably, according to the invention, certain parts or edges of the concrete floor slab 1 are provided with bevelled edges 28, so that the risk of damage to the edges of such concrete floor slab 1 is minimized. limited.

In the embodiment discussed here, for example, such bevelled edge 28 is provided on each edge 29

BE2016 / 5852 between a ventilation passage 12 and the first side of the concrete floor slab 4.

Furthermore, in the example shown, a bevelled edge 28 is provided on both edges 30 formed between the first floor slab surface 4 and the longitudinal sides 8 and 9.

Auction sides 28 are also provided on parts of the connecting means 23, in particular on the edges 31 formed in the grooves 25 and on the edges 32 of the protrusions 24 and on the edges 33 formed by the insertable part 26 thereof.

As illustrated in figure 13, the inserts 2 have an external shape complementary to the internal shape of the ventilation passages 8 in the concrete floor slab 1.

As already mentioned, in this case they are provided with a flange 22 which can be suitably inserted in the widening 22 on a ventilation passage 12.

Furthermore, the remaining part 34 of such an insert 2 on the outside 35 is formed with a conical wall 36 which is complementary to the part 20 of a ventilation passage 12.

The inserts 2 are preferably made of a plastic material, but this does not necessarily have to be the case 2, and they can be made of a soft elastic material or rather of. a hard material.

BE2016 / 5852

The most important aspect here is according to the invention that an insert 2 can be fitted in the ventilation passages 12 and can be retained and subsequently removed again.

The inserts 2 can further take very different shapes to be able to fulfill different functions.

To the left in Figure 13, for example, an insert 37 is shown which is intended to completely close a ventilation passage 12.

The top 38 and the bottom 39 of the insert 37 are completely closed for this purpose, while the insert 37 in this case is designed with a cavity 40.

In the middle of figure 13 another insert 41 is shown which is provided with a passage 42 which is slightly narrowed with respect to a ventilation passage 12, while on the right in figure 13 another insert 43 is provided which has a passage 44 which is made even more narrow compared to a ventilation passage 12.

The use of such construction means 3 according to the invention is very simple and will be explained below with reference to figure 14.

In a method according to the invention for mounting and adjusting a floor 45 above a ventilation cellar

BE2016 / 5852

6 of a storage shed 4 7 for agricultural products 4 8 with the aid of construction means 3 according to the invention, it is the intention to form the floor 45 by supporting concrete floor slabs 1 abutting each other on walls 4 9 which are erected parallel to each other on the floor 50 of the ventilation cellar 46.

In this case, each of the two end ends 10 and 11 of the concrete floor slabs 1 are supported on an underlying wall 49 to span the intermediate space 51 between these walls 49.

According to the invention it is moreover preferable that when the concrete floor slab 1 is supported on each of the two end ends 10 and 11 on an underlying wall 49, as illustrated in figure 14, that the concrete floor slab 1 hereby has a sufficient bearing capacity for forces applied to the floor plate 45 while driving over the floor plate 45 with a loaded vehicle that can carry up to 20 tons per axle as a load.

In an even more preferred embodiment, the concrete floor slab 1 preferably has a length L of 3 meters, a width B of 1 meter wide and a thickness D of 200 millimeters, however other dimensions are of course not excluded from the invention.

This can be realized by showing the application of the ventilation passages 12 here, which have a circular cross section, and by providing sufficient reinforcing steel in the concrete floor plate 1.

BE2016 / 5852

Another step in a method according to the invention consists in controlling the percentage of opening for air flow through the floor 45, whether or not use is made of one or more coastal fabric inserts 2 which can be fitted in a corresponding ventilation passage 12.

For example, in the example of Figure 14, it has been illustrated that in certain ventilation passages 12, shown in the left side of Figure 14, no insert 2 can be inserted with the intention of obtaining maximum flow of air at this location in the floor 45 or, for example, to ensure a suitable opening for the type of agricultural product 4 8 to be kept.

On the other hand, it is possible to completely prevent the flow of air through the floor 45 in certain places by completely closing one or more ventilation passages 12 by means of a plastic material

This is illustrated in the right side of figure 14.

Finally, in the middle of figure 14, it is also shown that one or more ventilation passages 12 can be partially closed by means of a plastic insert which is provided with an adapted passage, for example. by means of an insert 41 with a relatively large passage 42 or by means of an insert 43 with a somewhat smaller passage 44.

BE2016 / 5852

It is clear that in this way a very flexible system is obtained for adapting the openings in a floor according to the needs, either according to the dimensions of the agricultural products to be stored 48, or to adjust the ventilation locally, or for other reasons.

The example described here with reference to the figures is only one of the many possibilities.

In another possible embodiment, use can be made of annular inserts which can be laid in a corresponding widening of a ventilation passage.

In a preferred embodiment, such an annular insert is formed by an outer, upright, cylindrical wall provided on the upper side with a grid formed by an outer, flat, circular ring formed between them by intermediate spaced rectilinear openings. air flow.

a grid of ribs that are placed on one in order to eat in front of the

The flat, circular upright cylindrical top edge.

ring stabs retwat about ce wall ter formation from a

Preferably, the height of the cylindrical wall is somewhat less than the depth of the widening of the

BE2016 / 5852 ventilation passage 'and the diameter of the grille is somewhat smaller than the diameter of the ventilation passage rather than the widening.

In this way, gaps are left that damage the concrete h e 1 ρ e η before b o me n.

Another advantage of using such annular inserts is that the part of the ventilation passage under the aforementioned widening remains open and is not used for inserting an insert.

This contributes to an even distribution of the air to agricultural products.

In order to obtain a robust design, some of the ribs can be widened to form partitions extending on the inside of the cylindrical wall between two opposite sides thereof.

In this way it is also possible to manufacture plastic inserts that are sufficiently strong to withstand the materials applied to them.

Different gratings with the size of the intermediate openings varying can be used to adjust the percentage of opening in the concrete floor slab at will.

BE2016 / 5852

According to the invention it is possible in this way to provide the surface of a concrete floor slab with a 15% opening, whereby this percentage can be reduced by using more and more closed inserts.

The present invention is by no means limited to the embodiments of construction means 3 according to the invention described above, but such construction means 3 can be made in many shapes and sizes without departing from the scope of the invention.

The present invention is also by no means limited to the above-described method according to the invention, but other methods can be used without departing from the scope of the invention.

BE2016 / 5852

Claims (15)

Conclusions. Construction means (3) intended to form a floor (45) above a ventilation cellar (46) of a storage shed (47) for agricultural products (48), such as root vegetables, cereals or vegetables and the like, the construction means (3) include at least one concrete floor slab (1) with a first floor slab surface (4) intended to form the top of the floor (45) and on which the agricultural products (48) are to be applied and a second floor slab surface (6) intended to form the underside (7) of the floor (45) and to be directed to an underlying basement (46), characterized in that the concrete floor slab (1) is provided with ventilation passages (12) through the concrete floor slab (1 ), wherein the ventilation passages (12) are shaped such that control means in the form of one or more inserts (2,37,41,43) for controlling the percentage of opening in the concrete floor slab (1) suitably along the first floor slab surface (4) can be arranged in the ventilation passages (12) and wherein such inserted insert (2,37,41,43) is held by the shape of the respective ventilation passage (12). Construction means (3) according to claim 1, characterized in that the construction means (3) in addition to the above-mentioned concrete floor slab (1) also comprise plastic inserts (2,37,41,43) with an external shape that is complementary to the internal shape of the ventilation passages (12) and that fit snugly into the ventilation passages (12) 5 or are arranged and can thus be or are retained in the relevant ventilation passage (12), BE2016 / 5852 Construction means (3) according to one or more of The preceding claims, characterized in that the ventilation passages (12) are formed with a cross-section (17), which means a cross-section parallel to the floor surfaces (4,6), which has one of the following features: 15 the cross section (17) is circular; the cross section is in the form of a regular polygon; or, the largest dimension of the cross-section is at most twice the size of the smallest dimension 20 of the cross section. Construction means (3) according to one or more of the preceding claims, characterized in that the ventilation passages (12) are of the same shape 25 and distributed in a regular pattern (16) over the surface of the concrete floor slab (i). Construction means (3) according to one or more of The preceding claims, characterized in that the ventilation passages (12) are designed with a wall extending over substantially the entire thickness (D) of the BE2016 / 5852 concrete floor slab (1) perpendicular or almost perpendicular to the floor slab surfaces (4, 6) state whether it is slightly conical. Construction means (3) according to any one of the preceding claims, ventilation passages of floor slab surface (4) (1) with a widening is intended to be one, characterized in that the (12) are designed on the first of the concrete floor slab (21), which ove re ents ti u u .1 twen di ge tiens (22) (2,3 7, 41, 4 3) on the circumference of an insert which can be fitted appropriately in such a ventilation opening (12). Construction means (3) according to one or more of the preceding claims, characterized in that the ventilation passages (12) are designed somewhat conically, in particular, such ventilation passage decreases somewhat in dimensions from the second floor slab surface (6) of the concrete floor slab (1) in the direction of the first floor slab surface (4) of the concrete floor slab (1) 25 Construction means (3) according to one or more of the preceding claims, characterized in that the ventilation passages (12) are slightly conical, in particular such ventilation passage increasing slightly in dimensions from the 30 second floor slab surface (6) of the concrete floor slab (1) in the direction of the first BE2016 / 5852 floor slab surface (4) of the concrete floor slab (1) Construction means (3) according to one or more of the preceding claims, characterized in that on the pair of opposite longitudinal sides (8, 9) of the concrete floor slab (1) complementary connecting means (23) are provided for fitting and abutting several such uniform concrete floor slabs (1) side by side, these connecting means (23) being in particular formed by a pair of protrusions (24 ) on a first longitudinal side (9) and a pair of complementary grooves (25) on the opposite longitudinal side (8), such that at least a portion (26) of the protrusions (24) of a first concrete floor slab (1) can fit are provided in the grooves (25) of a second uniformly shaped concrete floor slab (1) placed adjacent to the first concrete floor slab (1). Construction means (3) according to claim 9, characterized in that said protrusions (24) have a widened portion (27) with a Minimum width (Q) greater than the width (R) of said groove (25), so that this widened portion (27) cannot be inserted into said groove (24) to leave a longitudinal groove between such uniform concrete 30 floor plates (1) that are placed next to each other. BE2016 / 5852 Construction means (3) according to one or more of the preceding claims, characterized in that the concrete floor slab (1) is provided with one or more bevels (28), in particular on one or more of the following parts thereof: a chamfer (28) on the edge (29) formed between a ventilation passage (12) and the first floor slab surface (4) of the concrete floor slab d); - a chamfer (28) on an edge (30) between the first floor slab surface (4) and at least one longitudinal side (8,9) of the concrete floor slab (1); - bevelled edges (28) at the edges (30) between the pair of opposite longitudinal side edges (8,9) and the 1 a k (4) of. the concrete floor slab (1); and / or, - assemble a bevelled edge (28) on one or more parts of connecting means (23) of adjacent concrete floor slabs (1) which are placed next to each other and which are placed next to each other Construction means (3) according to one or more of the preceding claims, characterized in that the concrete floor slab (1) has a length (L) of 3 Construction means (3) according to one or more of the preceding claims, characterized in that, when the concrete floor plate. (1) to each of bç side 30 crosscut ends (10.11) imposed on a underlying wall (49) b o v e .r s p a η n i n g v a. n the intermediate space (51) between these walls (49), BE2016 / 5852 the concrete floor slab (1) has a sufficient load bearing force for forces exerted on the floor slab (1) while driving over the floor slab (1) with a loaded vehicle capable of carrying up to 20 tons per axle as a load 14. Method for mounting and adjusting a floor (45) above a ventilation cellar (46) of a storage shed (47) for agricultural products (48) with The construction means according to one or more of the preceding claims, characterized in that the method comprises at least the following appeals: - form a floor (45) by concrete floor slabs 15 (1) to be supported adjacent to each other on walls (49) arranged parallel to each other in the ventilation cellar (46), each of the two end ends (10, 11) of the concrete floor slabs (1.) being supported on an underlying wall (49) ter 20 span of the intermediate space (51) between. these walls (49); and, the floor is becoming opening (45) at made for air flow through the arrange, ai then not use of one or more coastal substances 25 deployed tukken (2,37,41,43) fitting into one corresponding ventilation passage (12) can be fitted. Method according to claim 14, characterized in that the opening for air flow through the floor (45) is controlled in one or more of the following ways: - one or more ventilation passages (12) completely BE2016 / 5852 to be closed by means of a plastic insert (2,37); one or more ventilation passages (12) to be partially closed by means of a plastic insert (2,41,43) which is provided with an adapted passage (42,44); - increasing or decreasing the number of inserted inserts (2,37,41,43); and / or, partially or completely closing ventilation passages (12) at locations and the floor (45) on which no agricultural products (48) are provided and vice versa; adjusting the diameter of the ventilation passages (2,37,41,43) in function of an agricultural product to be preserved (48) by leaving one or more ventilation passages (12) open, partially or completely closed or closed off, respectively by not inserting an insert (2) or inserting a modified insert (2,37,41,43) in it, either a fully occluding insert (37) or a partially occluding insert (14,43). BE2016 / 5852 ΙΙΓ