FR3075077A1 - SET OF RIBBED METAL SHEETS - Google Patents

Abstract

 Set of at least two sheets (1) made of a metallic material, each sheet being provided with at least two identical ribs (2), parallel and with open base (B), at least two ribs (2) of the same sheet (1) being separated by a non-ribbed part (P) and at least two sheets (1) constituting the same set of sheets having a different distribution of the ribs (2), characterized in that the width (DP) of the non-ribbed part (P) between two neighboring ribs (2) of the same sheet (1) is defined by the relation:  DP = (m PU) - LB  with m an integer, PU a number called not useful, corresponding to the sum of the width (LB) of the open base (B) of a rib (2) with the smallest width (Lpp), taken on l '' set of sheets (1) constituting the set of sheets, the non-ribbed part (P) separating two neighboring ribs (2) on the same sheet and LB the width (LB) of the open base (B) of a rib (2). The invention also relates to a stack produced with the sheets of such a game.

Description

SET OF RIBBED METAL SHEETS

The present invention relates to a set of ribbed metal sheets.

The term “sheet” denotes a metal plate, whatever its dimensions and the nature of the material of which this sheet is made, whether it be a metal or a metal alloy. The term "ribbed" should be understood here as designating a relief, positive or negative, therefore in hollow or in hump formed on the sheet. This relief is at an altitude different from that of the mean plane of the sheet. The shape, number and / or distribution of the ribs on the sheet are variable. However, in all cases, the ribs are parallel to each other and to the largest dimension of the sheet. The ribs are identical on the same sheet.

Such sheets are commonly used for coating a building, whether on the roof or on the facade. Alternatively, they are used as a blackout fence or to make a separation, whether indoors or outdoors. There are, in known manner, sheets fitted with identical and joint ribs. Such uniqueness makes it possible to stack several sheets, which facilitates storage and transport. However, this implies that we transport and / or store sheets of a given type, so to achieve a uniform building coating, at least as regards the configuration of the ribs of the sheets.

To create aesthetic effects on a facade or partition, architects increasingly want to achieve a coating that has a random visual appearance. For this, sheets are used which have, of course, identical ribs but with an irregular distribution of the ribs on the sheet, non-ribbed parts of variable dimensions existing between the ribs, and / or with sets of sheets having a regular distribution identical ribs on the same sheet but variable between the sheets.

The problem of storage and transport then arises since the sheets of a given set of sheets are not strictly identical and therefore are not perfectly stackable, hence more handling and storage and / or transport spaces more important. Such constraints therefore generate an additional cost in the use of such sheets.

It is these drawbacks that the invention intends to remedy more particularly by proposing a set of ribbed metal sheets of easy and easily stackable manufacture and implementation, whatever the distribution of the ribs.

To this end, the subject of the invention is a set of at least two sheets of metallic material, each sheet being provided with at least two identical ribs, parallel and with an open base, at least two ribs of the same sheet being separated by a non-ribbed part and at least two sheets constituting the same set of sheets having a different distribution of the ribs, characterized in that the width of the non-ribbed part between two neighboring ribs of the same sheet is defined by the relation: DP = (m PU) - LB with m an integer, PU a number called not useful, corresponding to the sum of the width of the open base of a rib with the smallest width, taken on the set of sheets constituting the set of sheets, the non-ribbed part separating two neighboring ribs on the same sheet and LB the width of the open base of a rib.

Thus, it is possible to produce different sets of sheets, at least two of the sheets in the set being different as regards the distribution of the ribs and with ribs which can be distributed differently, this on the same sheet without compromising the stacking of sheets. In fact, a pitch is defined in this way between two neighboring ribs on a sheet which corresponds to a value previously defined by a known relation, this for all the sheets constituting the set of sheets. In other words, the distance between two ribs on the same sheet is one to several times the whole value of a determined minimum distance. There can therefore be stacking of sheets easily, a rib of a sheet corresponding either to a rib of another sheet or to a non-ribbed space of a defined width, this of course for sheets having the same value pitch between two ribs, therefore belonging to the same set of sheets. Thanks to the invention, a set of stackable sheets is produced, the sheets being different from each other.

According to advantageous but not compulsory aspects of the invention, such a set of sheets can include one or more of the following characteristics:

- m is a non-zero integer.

- The smallest width, taken from all the sheets making up the set of sheets, from the non-ribbed part separating two neighboring ribs on the same sheet is not zero.

- The smallest width, taken from all the sheets making up the set of sheets, from the non-ribbed part separating two neighboring ribs on the same sheet is zero.

- The width of the open base of a rib is not zero.

- The width of the open base of a rib is at least twice the thickness of the sheet on which the rib is formed.

- The invention also relates to a stack of at least two sheets constituting a set of sheets conforming to one of the preceding characteristics.

The invention will be better understood and other advantages thereof will appear more clearly on reading the description which will follow of several embodiments of the invention, given by way of nonlimiting example and made with reference to following drawings in which:

- Figure 1 is a simplified and schematic view of the cross section of a sheet belonging to a set of sheets according to an embodiment of the invention,

FIG. 2 is a view similar to FIG. 1, on the same scale, of another sheet according to the invention, the ribs of the sheets of FIGS. 1 and 2 being identical and belonging to the same set of sheets,

FIG. 3 is a view similar to the preceding figures, on the same scale, of another sheet belonging to the same set of sheets,

FIG. 4 is a view similar to the preceding figures illustrating a stack produced with the sheets of FIGS. 1 and 2,

FIG. 5 is a view similar to FIG. 4, the stack here being obtained with the sheets of FIGS. 1 and 3,

- Figures 6 and 7 are views similar to Figures 4 and 5 illustrating various possibilities of stacking the three sheets shown in Figures 1 to 3 and

- Figure 8 is a simplified and schematic view of a sheet according to another embodiment of the invention and belonging to another set of sheets.

Figures 1 to 3 illustrate, by way of nonlimiting examples, three sheets 1; 10; 100 belonging to the same set of sheets and therefore having all three identical ribs 2. In the different figures 1 to 8, the edges of the sheets are planar and therefore constitute de facto portions of non-ribbed areas. To facilitate reading, these portions of non-ribbed areas are considered to be the edges of the sheet. They will not be described in more detail.

The three sheets 1; 10; 100, particularly illustrated in Figures 1 to 3, are now described separately.

The set of sheets considered can include at least a fourth sheet, not shown, the ribs 2 of which are separated by a non-ribbed area, it being understood that the distribution of the non-ribbed areas between the ribs is different from that of the sheets 1; 10; 100. Here, to simplify the reading, only three sheets 1; 10; 100 are represented.

FIG. 1 illustrates a sheet 1 constituting a set of sheets in accordance with a first embodiment of the invention. Here, the ribs 2 are, in cross section, in the shape of a trapezoid. It should be noted that the sheet 1 is, as such, known from the state of the art.

The ribs 2 are identical, in shape and in dimensions, on the sheet 1 and on all of the sheets constituting a given set of sheets, therefore here on all the sheets illustrated in FIGS. 1 to 7. The base B of each rib 2 is open. The width LB of the open base of a rib 2 is not zero and at least equal to twice the thickness of the sheet 1. The base B is defined by the space between the junction zones 3, 3 'respectively of the sides 4, 5 of the rib 2 with the plane P defining all of the non-ribbed parts of the sheet 1. Subsequently, to facilitate reading, the reference P will designate the non-ribbed parts between two neighboring ribs 2 on a sheet 1.

The apex S of each rib 2 is flat and parallel to the plane P. Here, in FIG. 1, each non-ribbed part P has a flat visible face. The visible face is, in the example illustrated in FIG. 1, the face opposite to the face P1 which is the face facing upwards in FIG. 1. As a variant, the visible face is not planar, for example in appearance grainy or grooved. The visible side can also be painted or decorated differently from the ribs 2.

In another embodiment, the ribs have another geometric shape. By way of nonlimiting examples, there may be mentioned ribs with parallel sides and / or with a pointed top, therefore of triangular cross section like the ribs 20, 20 ′, 20 ”of the sheet 200 illustrated in FIG. 8. In all in the cases, it is important that, on a given set of sheets, all the ribs are identical not only on a given sheet but also between all the sheets constituting the set of sheets.

On the other hand, if the ribs are all of the same geometric shape, their distributions, on one or more sheets constituting a given set of sheets are variable.

FIG. 1 illustrates a sheet 1 comprising six ribs 2. The lateral edges of the sheet 1, parallel to the largest dimension of the ribs 2, are formed by flat sections 6, 7. Such a configuration of the edges 6, 7 of the sheets allows an overlap between two adjacent sheets 1, so as to produce an overlap which seals the connection when several sheets are in position on a building. It is easy to see that the number of ribs 2 on a sheet 1 may be different from that illustrated in FIG. 1, while remaining within the scope of the invention.

The width DP of the non-ribbed part P between two adjacent ribs 2 on the sheet 1 is here constant. Such a configuration corresponds to a regular distribution of the ribs 2 on the sheet 1.

We define, in general, the distance DP of the non-ribbed part between the ribs as being given by the relation:

DP = (m PU) - LB, with m a non-zero whole number, PU the useful pitch and LB the width of the open base of a rib.

The useful pitch PU of a sheet is, according to the invention, defined as being the sum of the width LB of the base B of a rib 2 and the smallest width Lpp of the non-ribbed part P located between two neighboring ribs 2, this considering the non-ribbed part on all of the sheets constituting the same set of sheets. In other words, the useful pitch PU corresponds to the smallest distance between the junction area 3 of the sidewall 4 of a first rib 2 with the plane P and the junction area 3 of the sidewall 4 of a second rib 2 with the plane P, the second rib 2 being taken as closest to the first rib.

Thus, according to the invention, the useful step PU is defined by the following relation:

PU = Lpp + LB

Hence the general relationship defining the width of a non-ribbed part:

DP = m (Lpp + LB) - LB

Such a definition of the useful pitch PU and of the dimension DP of the non-ribbed part between two ribs makes it possible to provide, according to the embodiments illustrated in FIGS. 1 to 8, non-ribbed parts of variable, but predefined dimensions, on each side a rib.

The non-ribbed parts correspond, in all cases, to an integer multiple of the useful step PU as defined above, with the smallest width Lpp between ribs which is zero or not zero.

To facilitate reading, in FIGS. 1 to 7, the smallest width Lpp of the non-ribbed part taken from all of the sheets constituting the set of sheets corresponds to the general case where this width Lpp is not zero and, in this case , different from the width LB of the base B of a rib 2. In other words, the width Lpp corresponds to the width of the non-ribbed zone P situated between two neighboring ribs 2 on the sheet 1.

As a variant, when the ribs are joined, the smallest width Lpp is equal to zero. In another embodiment, this width Lpp is equal to the width LB of the base B of a rib.

Similarly, for more readability, the dimensions of the non-ribbed parts and of the rib bases in the different figures are not necessarily to scale.

For sheet metal 1, the width LB of the open base B of each rib 2 is greater than the smallest width Lpp of the non-ribbed part between two neighboring ribs 2, taken over the entire set of sheets is zero.

The useful step PU, at sheet 1, is therefore equal to the general case, according to the relationship given above. In sheet 1, the ribs 2 being regularly spaced, the distance DP between two ribs 2 is therefore identical and constant over the entire width L1 of the sheet 1. In other words, the non-ribbed areas between two neighboring ribs 2 on the sheet 1 are identical over the entire width L1 of the sheet 1.

More precisely, sheet 1 illustrates the particular case where the multiple m is here equal to one.

It is therefore a special case, covered by the invention, where the width DP between two neighboring ribs is equal to the useful pitch PU minus the width LB of the open base B of a rib 2.

We can therefore write the relation, for sheet 1, as follows: DP = (m PU) - LB, with m = 1 either: DP = PU - LB or DP = (Lpp + LB) -LB

So here: DP = Lpp

FIG. 2 illustrates a sheet 10 also made of metallic material and constituting the same set of sheets as that to which the sheet belongs. To facilitate reading, the non-ribbed parts of the sheet 10 are, as for sheet 1, flat, being understood that as a variant they may have a non-planar appearance.

The sheet 10 is provided with ribs 2 identical in terms of shape and dimensions to the ribs 2 fitted to the sheet 1.

Here, the distribution of the ribs 2 on the sheet 10 is not regular over the entire width L10 of the sheet 10. In this case, the non-ribbed part P between two ribs 2 generally located in the middle position on the sheet 10 is of the same dimension DP as that of the non-ribbed part P between two ribs 2 of the sheet 1. On the other hand, the widths DP10 of the non-ribbed parts P10 located between a rib 2 and an edge 11 or 12 of the sheet 10 are greater than those of the non-ribbed parts P between the ribs 2 located in the middle position of the sheet 10. Here, the width DP10 of the non-ribbed part P10 between a rib 2 near the edge 11 and one of the ribs 2 in the closest middle position is identical to the width DP10 of the non-ribbed part P10 between the rib 2 closest to the edge 12 and the other rib 2 in the middle position closest to the edge 12.

The width DP10 of the P10 part is given by the general relation:

DP = (m PU) - LB.

Here, m is an integer multiple, different from one. In this case m is equal to two.

In other words, the width D10 obeys the relation: DP10 = 2PU - LB.

Here too, the non-ribbed parts P, P10 of the sheet 10 are planar. Alternatively, they are provided with decorative reliefs, for example undulations.

FIG. 3 illustrates a sheet 100 belonging to the same set as the sheets 1 and 10. Consequently, the sheet 100 comprises ribs 2, 2 ′, 2 ”identical to those fitted to the sheets 1 and 10. To facilitate the location of the ribs depending on their positions on sheet 100, references 2, 2 'and 2 ”are used.

Here, we observe non-ribbed parts having various dimensions. A non-ribbed part P100 extends between an edge 13 and a first rib 2. A second non-ribbed part P101 extends between the rib 2, and another rib 2 ', generally in the eccentric position on the right of the sheet 100 , looking at FIG. 3. Another non-ribbed part P, of the same dimension as the non-ribbed parts P of the sheet 1, extends between the rib 2 'and a proximal rib 2 ”.

As for the sheets 1 and 10, the dimensions DP100, DP101 and DP, respectively of the non-ribbed parts P100, P101, and P of the sheet 100 are given by the general relationship as defined above. The width of the non-ribbed part P is, as for the sheets 1 and 10, equal to the width Lpp, therefore obeys the general relation DP = m (Lpp + LB) - LB with m = 1.

Here, DP100 corresponds to the case where m = 2, as for the width DP10 to the sheet 10, while DP101 corresponds to the case where m = 3.

Figures 1 to 3 thus represent, without limitation, possible and non-limiting examples of sheets according to the invention and constituting the same set of sheets.

Figures 4 to 7 illustrate some of the possibilities of stacking the sheets 1, 10 and 100. For more readability, the stacks are illustrated with a copy of each of the sheets 1, 10 and 100. It is easy to see that each sheet 1, 10 or 100 can be used in several copies. In addition, each type of sheet 1, 10 or 100 can be in several copies of various colors and / or finish.

In all cases, FIGS. 4 to 7 illustrate the possibility, thanks to the invention, of stacking different sheets as long as they belong to the same set of sheets. FIGS. 4 and 5 respectively illustrate the stacking of a sheet 1 on a sheet 10 or on a sheet 100. In both cases, it is noted that the stack is optimal because the space between the sheets is minimal: either the ribs 2; 2 ’; 2 ”of the stacked sheets 1, 10, 100 are facing each other, or a rib is positioned above an un-ribbed part of the sheet 10 or 100 on which the sheet 1 is placed.

Given the nominal thickness of each sheet 1, 10 and 100, namely a thickness of less than a centimeter, a stack of controlled height is produced, easily palletizable and the dimensions of which correspond substantially to the dimensions of one of the sheets 1 , 10 or 100. In other words, the storage and transport of sets of sheets 1 and 10 or sheets 1 and 100 are optimized. The operation of such sets of stacked sheets is also facilitated, its size being reduced at best.

FIGS. 6 and 7 illustrate a stack with the three sheets 1, 10 and 100 of FIGS. 1 to 3.

Here, Figure 6 illustrates a stack with, in order from the top of Figure 6, a sheet 1, 10 and 100. Note that, to optimize the space between two sheets, therefore avoid a rib 2, 2 ', 2 ”supports, by its top S, an area of a non-ribbed part P, P10, P100, P101, it is necessary to shift, towards the left of FIG. 6, the sheet 100 relative to the sheets 1 and 10. Thus, the edge 11 of the sheet 10 is in abutment on the non-ribbed part P101 of the sheet 100.

Such a configuration makes it possible to stack the three sheets 1, 10 and 100 by optimizing the thickness of the stack of sheets, this in a similar manner to the stacks illustrated in FIGS. 4 and 5. On the other hand, due to the offset of the sheet 100 with respect to the sheets 1 and 10, one of the dimensions of the stack illustrated in FIG. 6 is greater than the equivalent dimension in FIGS. 4 and 5. However, such a stack of sheets remains palletizable, the overall size of the remaining stack contained within an acceptable range with palletizing.

FIG. 7 illustrates another embodiment of a stack with the three sheets 1, 10 and 100. Here, the sheet 100 is shifted to the right of FIG. 7. As for FIG. 6, the stack is produced, respectively, with sheets 1, 10 and 100 starting from the top of FIG. 7. Here too, a stack is obtained, one of the dimensions of which is greater than the corresponding dimension of a sheet 1, 10 or 100. Such a stack, as that of FIG. 6, remains easily palletizable.

FIG. 8 illustrates another embodiment of the invention, with a sheet 200 constituting another set of sheets. Here, in addition to the geometric shape of the ribs different from the geometric shape of the ribs 2, 2 ’, 2” illustrated in the previous figures, there is a different distribution of the ribs. On the one hand, there are certain ribs, referenced 20, which are said to be joint, therefore a sheet 200 provided with non-ribbed parts between two neighboring ribs 20 reduced to a minimum width, de facto corresponding to the value of the bending of the sheet. Here three ribs 20 are illustrated on the left of FIG. 8.

In the central part of the sheet 200, looking at FIG. 8, two ribs, identical to the ribs 20 but referenced 20 ′ to facilitate their location, are shown as joint, without part not ribbed between them, as for the ribs 20. It is understood that this number of ribs 20, 20 ′ may be different.

In other words, it is the illustration, in the left and central part of the sheet 200, of the particular case where Lpp = 0.

To the right of the sheet 200, according to FIG. 8, two ribs 20 ′ and 20 ”are separated by a non-ribbed part, it being understood that, in the example, the rib 20” is identical to the ribs 20, 20 ’. The reference 20 ”is used to facilitate the location.

Thus, a non-ribbed part P200 is formed between two ribs 20 and 20 ’and another non-ribbed part P200’ is formed between two ribs 20 ’and 20”.

At the sheet 200, the useful pitch PU200 is therefore equal to the width LB20 of the base B20 of a rib 20. The width DP200 of the non-ribbed part P200 between the ribs 20 and 20 'obeys the relation: DP200 = ( m PU200) - LB20 with m = 4.

We note that the width DP200 ’obeys the relation DP200’ = (m PU200) - LB20 with m = 3.

It is easily understood that the stacking of the adjoining ribs 20, 20 ’between sheets 200 is carried out easily.

Thanks to the invention, by playing on the orientation of the sheets, it is possible to produce stacks whose size is optimal, both for storage and transport on pallets. Such a solution makes it possible to produce sets of sheets with different rib distributions, on one or more sheets, the costs of storage, handling and transport are optimal.

Claims (6)

1Set of at least two sheets (1; 10; 100; 200) made of a metallic material, each sheet being provided with at least two identical ribs (2; 2 '; 2 ”; 20; 20'; 20”), parallel and with open base (B; B20), at least two ribs (2; 2 '; 2 ”; 20; 20'; 20”) of the same sheet (1; 10; 100; 200) being separated by a non-ribbed part (P, P10; P100; P101; P200, P200j and at least two sheets (1; 10; 100; 200) constituting a single set of sheets having a different distribution of the ribs (2; 2 '; 2 ”; 20; 20 '; 20”), characterized in that the width (DP) of the non-ribbed part (P; P10; P100; P101; P200) between two ribs (2; 2'; 2 ”; 20; 20 '; 20 ”) adjacent to the same sheet (1; 10; 100; 200) is defined by the relation: DP = (m PU) - LB with m an integer, PU a number called not useful, corresponding to the sum of the width (LB; LB20) of the open base (B; B20) of a rib (2; 2 '; 2 ”; 20; 20'; 20”) with the smallest width (Lpp), taken from all the sheets (1; 10; 100; 200) constituting the set of sheets, from the non-ribbed part (P, P10; P100; P101; P200, P200j separating two ribs (2; 2 '; 2 ”; 20; 20'; 20”) adjacent on the same sheet and LB the width (LB; LB20) of the open base (B; B20) of a rib (2; 2 '; 2 ”; 20; 20'; 20”). 2, - Sheet set according to claim 1, characterized in that m is a non-zero integer. 3, - Sheet set according to claim 1, characterized in that the smallest width (Lpp), taken over all of the constituent sheets (1; 10; 100) of the sheet set, of the non-ribbed area ( P) separating two neighboring ribs (2) on the same sheet (1) is not zero. 4, - Sheet set according to claim 1, characterized in that the smallest width (Lpp), taken on the set of sheets (200) constituting the sheet set, of the non-ribbed zone separating two ribs (20 ) neighbors on the same sheet (200) is zero. 5- sheet set according to claim 1, characterized in that the width (LB; LB20) of the open base (B; B20) of a rib (2; 20, 20 ’, 20”) is not zero. 6.- Stack of at least two sheets (1; 10; 100; 200) constituting a set of sheets according to one of the preceding claims.