CN101835947B

CN101835947B - A cladding sheet

Info

Publication number: CN101835947B
Application number: CN2008801132496A
Authority: CN
Inventors: 坎贝尔·J·塞康布; 李堂
Original assignee: BHP Steel JLA Pty Ltd
Current assignee: BHP Steel JLA Pty Ltd; BlueScope Steel Ltd
Priority date: 2007-08-31
Filing date: 2008-08-29
Publication date: 2013-03-27
Anticipated expiration: 2028-08-29
Also published as: AU2015234361C1; NZ583940A; WO2009026655A1; MY160266A; AU2015234361B2; CN101835947A; AU2008291624A1; AU2015234361A1

Abstract

A roof or other cladding sheet (3) that is adapted to engage a concealed fixing retaining clip (29) is disclosed. At least one rib (65) or side edge formation (11, 31) of the cladding sheet has a lengthwise extending channel (61) that opens upwardly relative to a base plane of the cladding sheet and is adapted to receive retaining members 9 of the concealed fixing retaining clip. A roll forming method and a roll former are also disclosed.

Description

Cladding plate

Technical field

The present invention relates to roof cladding plate (cladding sheet) or other cladding plate, for example wall cladding plate.

The invention still further relates to the forming method of roof or other cladding plate, particularly roll-forming (roll-forming) method.

The invention still further relates to the device for rolling and molding (roll former) that makes roof or other cladding plate moulding.

The present invention be more particularly directed to, but never be to relate to exclusively, the roof cladding plate of the roof supporting construction below being fixed to and the forming method of this cladding plate.

Background technology

Usually, cladding plate was by being coated with lacquer or unvarnished steel band is rolling forms, and comprised rib shape section (rib) that relative sidepiece, one or more vertically (lengthwise) extend, makes cladding plate and separate the edge forming part and the dish section (pan section) of one or more rib shape section with the edge forming part (side edge formation) of lapping relation and registration, relative end.

People know, cladding plate is fixed to supporting construction, for example the roof supporting construction, roof purlin (purlin) for example, method is to use the securing member that pierces through cladding plate and penetrate supporting construction, and for example roofer's nail and screw are directly fixed to rectangular structure with cladding plate.

People also know, by using jig (clip) that cladding plate is fixed to supporting construction, described jig is fixed to supporting construction by securing member, and form and extend in rib shape section and the edge forming part, and comprise retaining member or lug, described retaining member or lug can with the partes inflexa (re-entrant portion) of rib shape section and edge forming part namely in turn of bilge engage, thereby cladding plate is retained to jig.These jig assemblies are better than nail usually, because they can make cladding plate be fixed to supporting construction hidingly.

In the use, concealed fastening retaining jig (concealed fixing retaining clip) with the rib shape section of cladding plate between the relevant spacing distance of spacing be fixed to supporting construction.Then, by downwards cladding plate being pressed on the jig successively, with from beginning the sidepiece of outside projected rib shape section, so that the partes inflexa of rib shape section or edge forming part is through retaining member, then inwardly be bited into retaining member and engage, thereby cladding plate is positioned on the jig with the lapping relation.

There is multiple known concealed fastening retaining jig.These jigs comprise disclosed jig among International Application PCT/AU01/00818 (WO01/02666) of disclosed jig in the Australian Patent 685102 of disclosed a series of jigs, Stramit Corporation company among the International Application PCT/GB91/00450 (WO 91/12392) of Stramit IndustriesLimited company and other Australian Patent and the patent application and the applicant and the PCT/AU2003/000985 (WO 2004/013430).Disclosed jig is sold in Australia with the KLIPLOK trade mark among International Application PCT/AU01/00818 and the PCT/AU2003/000985 (WO 2004/013430).

Basically, the present invention relates to provide a kind of roof or other cladding plate that can be kept by the concealed fastening retaining jig with Types Below, this concealed fastening retaining jig comprises a pair of retaining member, this extends in opposite direction to retaining member, and the partes inflexa that is suitable in the sidepiece with the rib shape section of cladding plate or edge forming part engages.Usually, the form of retaining member is outwards and to the flange of downward-extension, described flange is suitable for engaging with the partes inflexa of jig, and applies active force, and with towards the supporting construction bias voltage jig that is fixed with jig, this active force prevention cladding plate lifts from supporting construction.

There is multiple known roof cladding plate.Cladding plate comprises the cladding plate of selling with the Australian registration mark such as KLIPLOK, WIDEKLIP, HIKLIP, SPANFORM and CUSTOMWALL.

Above description to known cladding plate and concealed fastening retaining jig and following to this known cladding plate and the description of jig can not be interpreted as that admitting is in Australia or other local common practise.

Summary of the invention

In a broad sense, the invention provides a kind of roof or other cladding plate, it is suitable for engaging with the concealed fastening retaining jig, and comprise rib shape section or the edge forming part of the passage that at least one has longitudinal extension, described passage is upwards opened with respect to the basal plane of cladding plate as herein defined, and is suitable for receiving the retaining member of concealed fastening retaining jig.

Term " basal plane of cladding plate " can be regarded as the plane at the dish section place that refers to cladding plate at this paper.

The present invention also provides a kind of roof or other cladding plate, described cladding plate is suitable for engaging with the concealed fastening retaining jig that comprises a pair of retaining member that extends in opposite direction and be fixed to supporting construction, described cladding plate comprises relative sidepiece, the rib shape section of one or more longitudinal extensions, make cladding plate concern the also edge forming part of registration with lapping, with the dish section of separating edge forming part and one or more rib shape section, described cladding plate is characterised in that, in described edge forming part and the described one or more rib shape section at least one comprises the passage of longitudinal extension, the passage of described longitudinal extension is upwards opened with respect to the basal plane of cladding plate as herein defined, and is suitable for receiving the retaining member of concealed fastening retaining jig.

Preferably, upwards open and the passage of longitudinal extension is limited by following part: (a) sidepiece of rib shape section or edge forming part; (b) partes inflexa of rib shape section or edge forming part, namely in turn of bilge, described partes inflexa from the lower end of described sidepiece inwardly and extend upward and is inclined upwardly with respect to the basal plane of cladding plate.

Partes inflexa can be at least 3 ° with respect to the acclivitous angle of the basal plane of cladding plate.

Preferably, partes inflexa is at least 5 ° with respect to the acclivitous angle of the basal plane of cladding plate.

The known roof or other cladding plate that are used for the concealed fastening retaining jig of applicant comprises partes inflexa, described partes inflexa is arranged in edge forming part and the one or more rib shape section of cladding plate, and is limited by the interior curved side wall portion that is parallel to or extend towards the basal plane of cladding plate downwards.In fact, these partes inflexas limit the platform of general planar, and these platforms in use contact and engage with the retaining member of jig.The applicant recognizes, compare with the situation that above-mentioned platform reaches, the edge forming part of cladding plate and in the rib shape section at least one are shaped to have the passage of upwards opening with respect to the basal plane of cladding plate and mean the retaining member of jig and engaging of cladding plate more effective (positive).Specifically, retaining member extends in the passage, rather than as the situation of known cladding plate, contacts with the surface of general planar.Can know like a cork, cladding plate of the present invention is separated with jig need to make cladding plate then outwards mobile with respect to the retaining member of jig downwards, this separates required outwards comparing with the movement that makes progress with making known cladding plate with same jig, more be difficult to realization.

According to the present invention, a kind of roll-forming method also is provided, it is above-mentioned roof or other cladding plate with the band roll-forming that the method is used device for rolling and molding, described device for rolling and molding comprises a plurality of roll-forming supports (roll forming stand), each support comprises top roll and lower roll, and in each support the virtual roll center line between described top roll and lower roll, described method comprises: at least one roll-forming support, be to have at least one upwards to open with respect to the basal plane of cladding plate as herein defined and the passage of longitudinal extension with at least one at least one the sidepiece roll-forming in the edge forming part of cladding plate and the one or more rib shape section, the top roll of wherein said at least one roll-forming support and lower roll are around the axis rotation of the roller center line of crosscut (transverse to) support, and having a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip and form described passage.

Preferably, described method comprises: in a plurality of roll-forming supports, be to have with respect to the basal plane of cladding plate upwards to open and the passage of longitudinal extension with two sidepiece roll-formings of the one or more rib shape section of cladding plate, the top roll of described a plurality of roll-forming supports and lower roll are around the axis rotation of the roller center line of crosscut support, and having a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip and form described passage.

Described method can comprise: in a plurality of roll-forming supports, be to have with respect to the basal plane of cladding plate upwards to open and the passage of longitudinal extension with two edge forming part roll-formings of cladding plate, described a plurality of roll-forming support has top roll and lower roll, described top roll and lower roll are around the axis rotation of the roller center line of crosscut support, and having a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip and form described passage.

According to the present invention, a kind of device for rolling and molding also is provided, it is above-mentioned roof or other cladding plate with the band roll-forming that this device for rolling and molding is used for by said method; Described cladding plate comprise relative sidepiece, one or more longitudinal extensions rib shape section, make cladding plate and separate the edge forming part and the dish section of one or more rib shape section with the edge forming part of lapping relation and registration, described cladding plate is characterised in that, in described edge forming part and the one or more rib shape section at least one has the passage of longitudinal extension, the passage of described longitudinal extension is upwards opened with respect to the basal plane of cladding plate as herein defined, and is suitable for receiving the retaining member of concealed fastening retaining jig; Described device for rolling and molding comprises a plurality of roll-forming supports, and each support comprises top roll and lower roll and the virtual roll center line between top roll and lower roll in each support; Described roll-forming support comprises at least one support, described at least one support has top roll and lower roll, this top roll and lower roll are around the axis rotation of the roller center line of crosscut support, and has a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip, and forms the partes inflexa of the sidepiece of the edge forming part of a part that limits passage or rib shape section.

Description of drawings

Further describe example of the present invention below with reference to accompanying drawing, in the accompanying drawing:

Fig. 1 is cross-sectional view, shows the part of the cladding plate that is positioned at the one embodiment of the invention on the known concealed fastening retaining jig, and the relation of being bonded with each other of two cladding plates of placing successively on jig;

Fig. 2 is that the left end of one of cladding plate shown in Figure 1 is the enlarged drawing of leading edge;

Fig. 3 is the enlarged drawing of irising out part among Fig. 2;

Fig. 4 is the phantom drawing of jig shown in Fig. 1 and 2;

Fig. 5～18 show another embodiment of the present invention but never are the other stages of an embodiment of the roll-forming method of the cladding plate of unique possible embodiment;

Figure 19 is the cross-sectional view of the cladding plate 3 made by roll-forming method shown in Fig. 5～18.

The specific embodiment

Fig. 1～4 show an embodiment of cladding plate 3 of the present invention.

Fig. 1～4 also show the correlation between two cladding plates 3 and the known concealed fastening retaining jig 29.

The direction that cladding plate 3 is laid in letter " A " expression among Fig. 1.

Specifically with reference to figure 4, known concealed fastening retaining jig 29 comprises:

(a) substrate 5;

Two erection part 7 of (b) stretching out from substrate 5; With

(c) pair of flanges 9, and this limits the retaining member that engages with the partes inflexa (aftermentioned) of the rib shape section of cladding plate (aftermentioned) and edge forming part to flange 9 as shown in figs. 1 and 4, and from erection part 7 downwards and stretch out.

Can find out best from Fig. 1 and 2, cladding plate 3 is formed by steel band, and roughly is the rectangular shape of sidepiece with relative longitudinal extension and relative end, and is formed by steel plate forming, normally roll-forming.

Cladding plate 3 comprises leading edge forming part 31 (seeing Fig. 1 and 2), trailing edge forming part 11 (seeing Fig. 1), with edge forming part 11, (Fig. 1 shows a part in 31 parallel at least one rib shape section 65 that is positioned at middle longitudinal extension, and embodiment illustrated in fig. 19ly have two rib shape sections 65), dish section 51 (a) with a plurality of longitudinal extensions, 51 (b), 51 (c), dish section 51 (a) is between leading edge forming part 31 and adjacent rib shape section 65, dish section 51 (b) is between adjacent rib shape section, and dish section 51 (c) is between trailing edge forming part 11 and adjacent rib shape section 65.

Cladding plate 3 shown in Fig. 1～4 has in Fig. 1 and 2 with the basal plane shown in the letter b P-BP.

Cladding plate 3 can have arbitrarily suitable length and width, and can comprise the rib shape section 65 that is separated by dish section 51 of any right quantity.

With reference to figure 2, the leading edge forming part 31 of cladding plate 3 comprises two

sidepiece

35a, 35b that separated by smooth top 33.Sidepiece 35a comprise from top 33 downward and outward extending branches 41, from the inside and upwardly extending interior turn of bilge of the lower edge of branch 41 be partes inflexa 43 and from partes inflexa 43 downwards and stretch out and with the branch 45 of dish section 51 combinations.The sidepiece 35b of the leading edge forming part 31 of cladding plate 3 comprises from top 33 downward and outward extending branches 41, be partes inflexa 43 and downwards and stretch out and form the relatively short branch 45 of the front end of cladding plate 3 from the inside and upwardly extending interior turn of bilge of the lower edge of branch 41.

The

branch

41 and 43 of two

sidepiece

35a, 35b of the leading edge 31 of cladding plate 3 limits passage 61, and passage 61 makes progress and inwardly opens, and is suitable for receiving the flange 9 of jig 29.Passage 61 with respect to the basal plane BP-BP of cladding plate 3 upwards and inwardly open.

The one or more rib shape section 65 of cladding plate 3 has top 33 and has on two identical shaped these meanings of sidepiece with above-mentioned sidepiece 35a from each rib shape section 65, has similar cross section with the leading edge forming part 31 of cladding plate 3.The left-hand side of rib shape shown in Figure 1 section 65 comprises

branch

41,43,45 and upwards and the passage 61 of inwardly opening.

The trailing edge forming part 11 of cladding plate 3 has the cross section identical with leading edge forming part 31.

In the use, a plurality of jigs 29 along the length of purlin 71 (seeing Fig. 1) at certain intervals distance be screwed to purlin 71, schematically show a screw 75 among Fig. 1.

Then, as shown in Figure 1, the lapping relation that cladding plate 3 is positioned at the trailing edge forming part 11 of follow-up cladding plate 3 on the leading edge forming part 31 of the cladding plate of having laid loads successively on purlin 71.

Cladding plate 29 engages with jig 29 along with loading successively on purlin 71.

This is achieved in the following ways: leading edge forming part 31, rib shape section 65 and the trailing edge forming part 11 of cladding plate 29 are pressed on the jig 29 successively, so that leading edge forming part 31, rib shape section 65 and trailing edge forming part 11 outside deflections, and flange 9 toe-ins of jig 3.

This moves and makes leading edge forming part 31, rib shape section 65 and trailing edge forming part 11, under the flange 9 of jig 29 extends to state in the passage 61 of

sidepiece

35a, 35b of cladding plate 3, is positioned on the jig 29, so that cladding plate 3 is fixed to jig 29.Can know like a cork from figure, flange 9 navigates on the jig 29 cladding plate 3 with engaging of passage 61 securely.

Fig. 5～18 show another embodiment of the present invention but never are the other stages of an embodiment of the roll-forming method of the present invention of the cladding plate 3 of unique possible embodiment.

Figure 19 shows the embodiment of the cladding plate 3 of making by this roll-forming method with the cross section.Figure 19 is the cross-sectional view of the cladding plate 3 made by roll-forming method shown in Fig. 5～18.Cladding plate 3 shown in Figure 19 has identical essential characteristic with the cladding plate 3 shown in aforesaid Fig. 1～4, represents same characteristic features with same reference number.

It is to be noted, become upwards and the passage 61 of inwardly opening not is the operation of simple and direct type in the leading edge forming part 31 central roll swagings of cladding plate 3, its method is included in based on use and is described to dummy roll (idler roll, a plurality of roll-forming stages of carrying out on the roll-forming support of roller section aftermentioned) (roll segment), the virtual roll center line Z-Z of the rotation crosscut support of these dummy rolls, and crosscut takes the lead and follows the rotation of the roller of standard rollers in the molded stage of this part roll-forming method.

Whole device for rolling and molding comprises a series of roll-forming supports with reference to figure 5～18, and each support comprises top roll and the lower roll that is separated by virtual roll center line Z-Z.These rollers can be driven vollers, also can be driven rollers.Each top roll comprises a plurality of

roller section

81a, 81b, 81c, and each lower roll comprises a plurality of

corresponding roller section

83a, 83b, 83c.

Further whole with reference to figure 5～18, there is shown the part of top roll and the lower roll of each roll-forming support.What can understand is to have a plurality of other such roller sections in the top roll in each support and the lower roll.Roller section 81,83 is arranged to rotate around axis X-X shown in Figure 5, Y-Y.These rotations are parallel to roller center line Z-Z.Roller section 81,83 among Fig. 6,7,9,12,14～18 is arranged to the rotation rotation around the roller center line Z-Z that is parallel to these rotations and these supports.As below describing in detail, in the roll-forming support shown in other figure, be described to the roller section of dummy roll 89 around rotation 91 rotations of the roller center line Z-Z of these rotations of crosscut and these supports.

Fig. 5 shows the first roller support in the device for rolling and molding.This support carries out the roll-forming of phase I, makes smooth steel band 85 be shaped to the cladding plate with profile shown in Figure 19.Fig. 6～18 show follow-up downstream rollers support, and these supports carry out the roll-forming of follow-up phase, make band 85 be shaped to cladding plate shown in Figure 19 3.

Roller section shown in Fig. 5～18 is one of the rib shape section 65 of formation cladding plate 3 required roller section.What can understand is, needs the roller section of similar configuration, forms other rib shape section 65 in the cladding plate 3.What can also understand is, needs the roller section of similar configuration, forms the

edge forming part

11,31 of cladding plate 3.

First three roll-forming stage shown in Fig. 5～7, form on this meaning of partes inflexa of the common rib shape section 65 of known packets cladding plate from these stages, be the standard stage.As mentioned above, the normally smooth platform of these partes inflexas of rib shape section 65, it in use contacts and engages with the retaining member 9 of jig 29 (for example jig shown in Figure 4).

Fig. 8 shows the configuration of roller section of the partes inflexa 43 of the left-hand side that begins to form rib shape section 65.As mentioned above, this partes inflexa 43 limit rib shape section 65 left-hand side upwards and the part of the passage 61 of inwardly opening, this passage 61 can realize that rib shape section 65 more effectively engages with cladding plate 3.These roller sections comprise a pair of relative dummy roll 89, this can be around axis 91 (only showing an axis among the figure) rotation of crosscut roller center line Z-Z to dummy roll 89, and having a complementary profile 93 that is rolled into, the profile 93 that is rolled into of described complementation is configured as and makes roughly linearly partes inflexa shown in Figure 7 be deformed into S shape profile shown in Figure 8.

Roller section

81a, 83b in the next roll-forming support shown in Figure 9 and 83a, 83b are for the partes inflexa 43 of the left-hand side that further develops rib shape section 65.Specifically, these roller section co-operatings are with the branch 41 of the left-hand side that begins to form rib shape section 65.As noted above, branch 41 and partes inflexa 43 limit passage 61.The shape of passage 61 begins in Fig. 9 obviously.

Figure 10 shows the configuration of the roller section in the next roll-forming support, and it finishes the moulding of partes inflexa 43 of the left-hand side of rib shape section 65.The form of these roller sections is relative dummy rolls.Dummy roll 89 can rotate around the axis 91 (only showing an axis among the figure) of crosscut center line Z-Z, and has complementary forming surface 93, and complementary forming surface 93 is configured as and continues to make the partes inflexa 43 of Fig. 9 to be deformed into S shape profile shown in Figure 10.

Follow-up roll-forming support in Figure 11～13 shows the roller section group that comprises accordingly dummy roll with the roller section group shown in Fig. 7～9, and these roller section groups are used to form the passage 61 of the right-hand side of rib shape section 65.

Figure 14～18 show the roller section in the required follow-up roll-forming support of the roll-forming of finishing rib shape section 65.

The roll-forming support of above-mentioned sequence and stage are effective device for rolling and molding and the roll-forming methods of making cladding plate 3 shown in Figure 19.As noted above, in the roll-forming support shown in Fig. 8,10,11 and 13, use dummy roll 89, concerning in front end 11, rear end 31 and the rib shape section 65 of cladding plate 3, forming upwards and the passage of inwardly opening, being important architectural feature.

In the situation that do not deviate from the spirit and scope of the present invention, can make multiple modification to the preferred embodiment of cladding plate and the embodiment of cladding plate roll-forming method.

For example, although above-described embodiment description is the roof cladding plate, the present invention is not limited thereto, can expand to other cladding plate, for example the wall cladding plate.

In addition, although above-described embodiment description is specific concealed fastening retaining jig 29, the present invention is not limited thereto, can expand to arbitrarily suitable jig.

Claims

1. cladding plate, be suitable for engaging with the concealed fastening retaining jig, and comprise rib shape section or the edge forming part of the passage that at least one has longitudinal extension, described passage is upwards opened with respect to the basal plane of cladding plate, and be suitable for receiving the retaining member of concealed fastening retaining jig, wherein, upwards open and the passage of longitudinal extension is limited by following part: (a) sidepiece of rib shape section or edge forming part; (b) partes inflexa of rib shape section or edge forming part, namely in turn of bilge, described partes inflexa from the lower end of described sidepiece inwardly and extend upward and is inclined upwardly with the angle that is at least 3 ° with respect to the basal plane of cladding plate.

2. cladding plate, be suitable for engaging with the concealed fastening retaining jig that comprises a pair of retaining member that extends in opposite direction and be fixed to supporting construction, and comprise relative sidepiece, the rib shape section of one or more longitudinal extensions, make cladding plate concern the also edge forming part of registration with lapping, with the dish section of separating edge forming part and one or more rib shape section, it is characterized in that, in described edge forming part and the one or more rib shape section at least one comprises the passage of longitudinal extension, the passage of described longitudinal extension is upwards opened with respect to the basal plane of cladding plate, and be suitable for receiving the retaining member of concealed fastening retaining jig, wherein, upwards open and the passage of longitudinal extension is limited by following part: (a) sidepiece of rib shape section or edge forming part; (b) partes inflexa of rib shape section or edge forming part, namely in turn of bilge, described partes inflexa from the lower end of described sidepiece inwardly and extend upward and is inclined upwardly with the angle that is at least 3 ° with respect to the basal plane of cladding plate.

3. cladding plate as claimed in claim 1 or 2, wherein, described partes inflexa is at least 5 ° with respect to the acclivitous angle of the basal plane of cladding plate.

4. roll-forming method, it is such as each described cladding plate in the above-mentioned claim with the band roll-forming that the method is used device for rolling and molding, described device for rolling and molding comprises a plurality of roll-forming supports, each support comprises top roll and lower roll, and in each support the virtual roll center line between top roll and lower roll, described method comprises: at least one roll-forming support, be to have at least one upwards to open with respect to the basal plane of cladding plate and the passage of longitudinal extension with at least one at least one the sidepiece roll-forming in the edge forming part of cladding plate and the one or more rib shape section, the top roll of wherein said at least one roll-forming support and lower roll are around the axis rotation of the roller center line of crosscut support, and having a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip and form described passage.

5. method as claimed in claim 4, comprise: in a plurality of roll-forming supports, be to have with respect to the basal plane of cladding plate upwards to open and the passage of longitudinal extension with two sidepiece roll-formings of the one or more rib shape section of cladding plate, the top roll of described a plurality of roll-forming supports and lower roll are around the axis rotation of the roller center line of crosscut support, and having a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip and form described passage.

6. such as claim 4 or 5 described methods, comprise: in a plurality of roll-forming supports, be to have with respect to the basal plane of cladding plate upwards to open and the passage of longitudinal extension with two edge forming part roll-formings of cladding plate, the top roll of described a plurality of roll-forming supports and lower roll are around the axis rotation of the roller center line of crosscut support, and having a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip and form described passage.

7. a device for rolling and molding is used for by such as each described method of claim 4～6, is such as each described cladding plate in the claim 1～3 with the band roll-forming; Described cladding plate comprise relative sidepiece, one or more longitudinal extensions rib shape section, make cladding plate and separate the edge forming part and the dish section of one or more rib shape section with the edge forming part of lapping relation and registration, described cladding plate is characterised in that, in described edge forming part and the one or more rib shape section at least one has the passage of longitudinal extension, the passage of described longitudinal extension is upwards opened with respect to the basal plane of cladding plate, and is suitable for receiving the retaining member of concealed fastening retaining jig; Described device for rolling and molding comprises a plurality of roll-forming supports, and each support comprises top roll and lower roll and the virtual roll center line between top roll and lower roll in each support; Described roll-forming support comprises at least one support, described at least one support has top roll and lower roll, this top roll and lower roll are around the axis rotation of the roller center line of crosscut support, and has a complementary profile that is rolled into, the profile that is rolled into of described complementation is configured as and makes deformation of strip, and forms the partes inflexa of the sidepiece of the edge forming part of a part that limits described passage or rib shape section.