SE542701C2

SE542701C2 - Frame work system

Info

Publication number: SE542701C2
Application number: SE1850089A
Authority: SE
Inventors: Thomas Jonsson
Original assignee: Nikander Hans; Thomas Jonsson
Priority date: 2018-01-26
Filing date: 2018-01-26
Publication date: 2020-06-30
Also published as: SE1850089A1

Abstract

A framework system 1 comprising one or more corner elements 2 attached to an end of one or more elongated profile sections 3. Each of the elongated profile sections 3 comprise an elongated tube element 4 and at least one panel attaching element 5, 6; 38. Further the elongated tube element 4 and the panel attaching element 5, 6; 38 is attached to each other, and at least one panel element 7 is attached to the panel attaching element 5, 6; 38. The elongated tube element 4 comprises an external shape which is cylindrical and thus circular in cross section and the panel attaching element 5, 6; 38 comprises a segment 8 which is provided with an external surface 9 comprising a radius which is equal or larger than an external radius of the elongated tube element 4, and the external segment shape of the panel attaching element 5, 6; 38 is adapted to abut against the external shape of the elongated tube element 4.

Description

FRAME WORK SYSTEM Technical field [0001 ] The present invention relates generally to a framework system according to claim 1.

Background art

[0002] In prior art, it is known many different types of framework systems used within different fields of application. One field of application is for trucks, towed trailers or any other vehicles which may be equipped with a cargo body which enclose the goods which are to be transported.

[0003] Cargo bodies according to prior art are usually designed by a framework made of a light metal material. The framework may be made of extruded profiles which are welded together within e.g. a factory or a work shop. When the framework is assembled, wall panels are attached in a suitable manner to the framework and the cargo body is formed.

[0004] A drawback with a cargo body with a framework of light metal material is that the assembling steps demands that the assembling process of the included profiles are accurate so that the profiles are assembled with desired angels in relation to each other otherwise the assembled framework will end up slanted and crooked and it will be difficult to mount the wall panel elements on the assembled framework. Further, the included profiles do not allow any adjusting during the assembling step. Thus, there is only one possible way to assemble the included profiles within the framework.

[0005] Another drawback with a cargo body manufactured of a framework of light metal material is that this is rather heavy in relation to other lightweight materials such as carbon fiber.

Summary of invention

[0006] An object of the present invention is to create a framework system which allows adjustment of the position of the included profile sections during the assembling without the need of changing the design of the profile sections. This to fine-tune the fitting between the assembled profile sections.

[0007] The framework system comprises one or more corner elements attached to an end of one or more elongated profile sections. Each of the elongated profile sections comprise an elongated tube element and at least one panel attaching element. Further the elongated tube element and the panel attaching element is attached to each other. At least one panel element is attached to the panel attaching element. The elongated tube element comprises an external shape which is circular and the panel attaching element comprises a segment which is provided with an external surface comprising a radius which is equal or larger than an external radius of the elongated tube element. The external segment shape of the panel attaching element is adapted to abut against the external shape of the elongated tube element. In one embodiment, the panel attaching element comprises a first wall part which is connected to the segment of the panel attaching element such that a first corner between the first wall part and the segment becomes pointed.

[0008] In another embodiment, the panel attaching element comprises the first wall part and a second wall part which are substantially parallel and connected by the segment of the panel attaching element such that a first corner between the first wall part and the segment becomes pointed and the second corner between the second wall part and the segment becomes blunt.

[0009] The second corner can be an abutting means and the panel element can abut against the abutting means of the panel attaching element.

[0010] The panel attaching element is provided on the elongated tube element such that a first external wall surface of the first wall part is arranged such that the first external wall surface extend in a direction which is tangential to an external surface of the tubular element.

[0011] At least one of first and second distal ends of the first and second wall parts of the panel attaching element is chamfered and incline towards the elongated tube element.

[0012] The chamfered first and second distal ends of the first and second wall parts of the panel attaching element extend outside an end surface of the elongated tube element.

[0013] A distal portion of the external segment surface of the panel attaching element abuts against the corner element. The corner element comprises one or more tube parts which are connected to each other in an angular relationship. Each tube part comprises an external end with a first external corner tube diameter which is equal or smaller that an internal tube diameter of the elongated tube element. The panel attaching element of the elongated profile section comprises a flange profile section comprising an abutting segment partially complementary in shape to the external surface of the elongated tube element and comprises at least one of a first or second flange.

[0014] The abutting segment of the flange profile section comprises a shape of a segment of a circle and the flange. The flange is arranged in a normal direction to the abutting segment.

[0015] The panel element is provided to abut against one of the flanges of the flange profile section and abut against the first internal wall surface of the first wall part.

[0016] The corner element, the elongated tube element, the panel attaching element, the elongated profile section, the flange profile section are attached to each other by means of an adhesive. The corner element, the elongated tube element, the panel attaching element, the elongated profile section and the flange profile section are manufactured of carbon fibre. The framework system may be mounted upon a vehicle.

[0017] The framework system comprising one or more corner elements, one or more elongated profile sections, whereof each elongated profile section comprise an elongated tube element and at least one panel attaching element and at least one panel element may be assembled by means of the , steps: -assembly of the elongated tube elements with the corner elements, -assembly of the panel element with the panel attaching element, -assembly of the panel attaching element mounted onto the panel element onto the elongated tube elements attached to the corner elements.

[0018] Further the framework system comprises a flange profile section, wherein the method comprises the step: -assembly of the flange profile section onto the panel element and onto the elongated tube element.

Brief description of drawings

[0019] The invention is now described, by way of example, with reference to the accompanying drawings, in which:

[0020] Fig. 1 discloses a corner of the framework system partially assembled according to a first embodiment of the invention, [0021 ] Fig. 2 discloses a corner of the framework system assembled according to the invention,

[0022] Fig. 3 discloses assembled a corner of the framework,

[0023] Fig 4 discloses an end portion of an elongated profile section,

[0024] Fig 5 discloses an end portion of the elongated profile section,

[0025] Fig 6 discloses a cross section through the elongated profile section according to Fig. 5,

[0026] Fig. 7 discloses a corner element,

[0027] Fig. 8 discloses the framework system according to a second embodiment of the invention,

[0028] Fig. 9 discloses a cross section through the framework system according a second embodiment of the invention which is disclosed in Fig. 8.

Description of embodiments

[0029] In the following, a detailed description of a framework system according to the invention is disclosed in detail in respect of embodiments and in reference to the accompanying drawings. All examples herein should be seen as part of the general description and therefore possible to combine in any way in general terms. Again, individual features of the various embodiments may be combined or exchanged unless such combination or exchange is clearly contradictory to the overall function of the device.

[0030] Fig. 1- 7 discloses a first embodiment of the invention. In Fig. 1a corner portion of the framework system 1 is disclosed in a partially disassembled state and Fig. 2 discloses a corner portion of the framework system 1 in an assembled state. The framework system 1 comprises one or more elongated profile sections 3 and one or more corner elements 2. In Fig. 1, 7 and 8 one corner element 2 and three elongated profile sections 3 are disclosed. The elongated profile sections 3 are attached to one or more corner elements 2. The corner element 2 comprises one or more tube parts 24, 25, 26 which are connected to each other in an angular relationship. The corner element 2 shown in Fig.1, 7 and 8, comprises first, second and third tube parts 24, 25, 26. Flowever, the corner element 2 is not limited to the amount of three tube parts 24, 25, 26. Any number of tube parts may be suitable depending on the desired design of the corner element 2. The tube parts 24, 25, 26 of the corner element 2 comprise a first internal corner tube diameter 31 and a first external corner tube diameter 30.

[0031] The tube parts 24, 25, 26 of the corner elements 2 shown in Fig. 1, 7 and 8 are assembled in an angular relationship to each other, in this embodiment the tube parts 24, 25, 26 are perpendicular to each other, this to create a corner portion with tube parts arranged in perpendicular angles in relation to each other. The tube parts 24, 25, 26 can of course be assembled in another angular relationship than perpendicular to each other.

[0032] In Fig. 3 the elongated profile section 3 is disclosed. The elongated profile sections 3 comprise an elongated tube element 4 and at least one panel attaching element 5, 6. Fig 3 discloses two panel attaching elements 5, 6 provided on each elongated tube element 4. The panel attaching elements 5, 6 are substantially U-shaped. The elongated tube element 4 and the panel attaching element 5, 6 is attached to each other, and at least one panel element 7 is attached to the panel attaching elements 5, 6. The elongated tube element 4 comprises an internal tube diameter 32 and an external tube diameter 39.

[0033] The tube parts 24, 25, 26 comprises an external corner tube diameter 30 and an internal corner tube diameter 31. The external corner tube diameter 30 of the corner element 2 is equal or smaller than an internal tube diameter 32 of elongated tube element 4. The tube dimensions of the tube parts 24, 25, 26 within one corner element 2 are preferably of equal dimension. Further Fig. 3 discloses a part of a panel element 7, which is inserted into the panel attaching element 5, 6. The panel attaching elements 5, 6 are connected by the corner element 2. The panel attaching elements 5, 6 arranged in the vicinity of each other and connected by the corner element 2 form a channel wherein the panel element 7 is provided. The size of the shown panel element 7 is only for illustrative purposes, and in reality the panel element 7 extend along the length of the panel attaching element 5, 6. The panel element is also shown with a dashed line in Fig. 6. A end portion 41 of the panel element 7 which is inserted into the panel attaching elements 5, 6 can be blunt as shown in Fig. 6.

[0034] Fig. 5 and Fig. 6 discloses the elongated profile section 3 comprising the elongated tube element 4 and two panel attaching elements 5, 6. The elongated tube element 4 comprises an external shape which is cylindrical and thus circular in cross section. The panel attaching element 5, 6 comprises first and second wall parts 10, 11 which are substantially parallel. The first and second wall parts 10, 11 are connected by a segment 8 of the panel attaching element 5, 6. The segment 8 comprises an external segment surface 9 and an internal segment surface 17. The external segment surface 9 comprises a radius which is equal or larger than an external radius of the circular elongated tube element 4. Further, the external segment shape of the panel attaching element 5, 6 is adapted to abut against the external shape of the elongated tube element 4.

[0035] Further, the first wall part 10 is provided with a length X and the second wall part 11 is provided with a length Y. The length X is longer than the length Y such that when a panel element 7 is provided between the first and second wall parts 10, 11, the panel element 7 may achieve support on each side. Thus, both the first and second wall parts 10, 11 provide equal side support for the panel element 7. The first wall part 10 comprises a first internal wall surface 14 and the second wall part 11 comprises a second internal wall surface 15.

[0036] A first corner 12 between the first wall part 10 and the segment 8 becomes pointed and a second corner 13 between the second wall part 11 and the segment 8 becomes blunt. The second corner 13 between the first wall part 10 and the segment 8 can be used as an abutting means and the panel element 7 can abut against the abutting means in an assembled state. Upon mounting of the panel element 7 within the panel attaching element 5, 6, the panel element 7 is provided between the first and second wall parts 10, 11. Between the first and second wall parts 10, 11 the channel is formed, wherein the panel element 7 is provided. The panel element 7 is slid in between the first and second walls 10, 11 preferably until the panel element 7 abuts against the abutting means 13, then the panel element 7 has come to its correct position.

[0037] In an assembled state, the panel element 7 is provided in between the first and second wall parts 10, 11 of the panel attaching element 5,6. Between the walls 10, 11 and an internal surface 17 of the segment 8, there is formed a free space. The free space 40 is located between the vicinity of the second corner 13 and the internal surface 17 of the segment 8. The free space 40 extend along the longitudinal direction or the panel attaching element 5, 6 and ends in respective distal ends 20, 21 of the panel attaching element.

[0038] Upon mounting of the panel element 7 an adhesive is applied within the panel attaching element 5, 6, i.e. on the first and second walls 10, 11 where after the panel element 7 is inserted in between the first and second walls 10, 11. Upon insertion of the panel element 7 into the panel attaching element 5, 6 excess adhesive, if any, may be collected or accumulate within the free space 40 and be distributed within the free space 40 along the longitudinal direction of the panel attaching element 5, 6. The hidden free space 40 for the excess adhesive gives rise to a more aesthetic appearance than if the excess adhesive should be squeezed out between the first wail 10 and the panel element 7 and/or second wall 11 and the panel element 7 and soil the inserted panel element 7. If the amount of excess adhesive is of such a quantity that it cannot be accommodated within the free space 40 or cavity, the excess adhesive escape through the respective distal ends 20, 21 of the panel attaching element.

[0039] In Fig. 5 and 6 the elongated profile section 3 is disclosed. The elongated profile 3 comprises the elongated tube element 4 and two panel attaching elements 5, 6. The panel attaching element 5, 6 may be mounted onto the elongated tube element 4 in a number of positions. In one mounting position, the panel attaching element 5, 6 is provided on the elongated tube element 4 such that a first external wall surface 18 of the first wall part 10 is angled to a desired angular relationship with the elongated tube element 4. This mounting position allows an adjustment of the position of the panel attaching element 5, 6 and thus also the panel element 7 during the mounting or assembling process. In one preferred mounting position, the panel attaching element 5, 6 is provided on the elongated tube 4 such that a first external wall surface 18 of the first wall part 10 is arranged such that the first external wall surface 18 extend in a direction which is tangential to an external surface 35 of the tubular element 4, shown in Fig. 6. This position of the panel attaching elements 5, 6 provide a smooth outside surface of the framework system 1, and at the same time the volume of for example a cargo body is made as large as possible.

[0040] In Fig. 4 the elongated profile section 3 is disclosed which comprises the elongated tube element 4 and two panel attaching elements 5, 6. At least one of first and second distal ends 20, 21 of the first and second wall parts 10, 11 of the panel attaching element is chamfered and incline towards the elongated tube element 4, in an assembled state, which is shown in Fig. 4. The angle between a centre axis through the elongated circular profile 4 and the chamfered first or second distal ends 20, 21 is approximately 45 degrees. Further, the chamfered first and second distal ends 20, 21 of the first and second wall parts 10, 11 of the panel attaching element 5, 6 extend outside an end surface 22 of the elongated tube element 4. In the event the corner element 2 is provided with three tube parts 24, 25, 26, this allows one of the tube parts 24, 25, 26 of the corner element 2 to be inserted into one elongated tube element 4 and the chamfered distal ends 20, 21 of the panel attaching elements 5, 6 will abut against anyone of the other panel attaching elements 5, 6 mounted within any of the other tube parts 24, 25, 26 of the corner element 2. Thus, a closed corner is created within the framework system 1.

[0041] In an assembled state, wherein the corner element 2 is attached to the elongated profile section 3, a portion of the external segment surface 9 of the panel attaching element 5, 6 abuts against an external surface of the corner element 2.

[0042] Fig. 7 disclose the corner element 2. The corner element 2 comprises one or more one or more tube parts 24, 25, 26 which are connected to each other in an angular relationship. Each tube part 24, 25, 26 comprises an external end 27, 28, 29 with a first external corner tube diameter 30 which is equal or smaller that an internal tube diameter 32 of the elongated tube element 4.

[0043] Fig. 8-9 discloses a second embodiment of the invention. In the second embodiment, the panel attaching element 38 comprises one first wall part 10. The panel attaching element 38 may substantially L-shaped. The first wall part 10 is connected to the segment 8 of the panel attaching element 38 such that the first corner 12 between the first wall part 10 and the segment 8 becomes pointed. In an assembled state, the end portion 41 of the panel element 7 may abut against the end portion or second corner 13 of the segment 8.

[0044] The panel attaching element of 38 according to the second embodiment also comprises an additional flange profile section 33. The additional flange profile section 33 may extend along the panel attaching element 38 as a stabilizing support. The additional flange profile section 33 may also extend along the panel attaching element 38 and the corner element 2 as a stabilizing support. The flange profile section 33 comprises an abutting segment 34 which partially is complementary in shape to the external shape 35 of the elongated tube element 4. Further, the flange profile section 33 comprises at least one flange 36, 37. In an assembled state the flange 36, 37 is provided on a distance from and parallel to the first wall part 10. The flange profile section 33 is provided to constitute an anvil for the panel element 7, upon and after assembly. The flange profile section 33 is provided on a distance from the first wall portion 10 which distance is longer than the distance between the first and second wall portions 10, 11 according to the first embodiment and allows a panel element 7 with a greater thickness than in the first embodiment to be mounted. Preferably, the flange 36, 37 of the panel attaching element 38 is normal to the abutting segment 34. Further, in a cross section the abutting segment 34 comprises the shape of a part of a circle, shown in Fig 10. In this context, the expression normal has the meaning of a line which pass through the center point of the elongated tube element 4 and intersect the elongated tube element 4 in an intersection point. Within the intersection point with the elongated tube element 4, the normal line is perpendicular to a tangent in the intersection point of the circle.

[0045] The flange profile section 33 may also be used as a support together with the panel attaching element 5, 6 of the first embodiment.

[0046] The corner element 2, the elongated profile section 3, the elongated tube element 4, the panel element 7, the panel attaching element 5,6; 38, the elongated profile section 3 and the flange profile section 33 comprised in the framework system 1 may be manufactured of carbon fiber. The elements of the framework system may be manufactured in any other material such fiber reinforced composites.

[0047] The corner element 2, the elongated profile section 3, the elongated tube element 4, the panel element 7, the panel attaching element5, 6; 38, the elongated profile section 3, the flange profile section 33 comprised in the framework system 1 may be fastened together by means of an adhesive. Further, in other fields of application the framework system 1 can be assembled by means of other mounting means than adhesive

[0048] The framework system described above may be used to build a cargo body for a vehicle such as a truck, trailer etc. Other possible application areas may be frames for tents, freight containers, houses etc.

[0049] Upon assembly of the framework system according to the first embodiment, in one step the panel element 1 is inserted into the panel attaching elements 5, 6 of the elongated profile sections 3. Further, in another step the tube parts 24, 25, 26 of the corner elements 2 are inserted into the end 22 of the elongated tube element 4 of the elongated profile section 3. After a desired number of elongated tube elements 4 have be attached to the corner elements 2, the panel element 7 with attached attaching panel element(s) 5, 6 are mounted and fixed onto the elongated tube elements 4. In the case adhesive is used, adhesive is applied onto protruding free ends 27, 28, 29 of the tube parts 24, 25, 26 or on an internal surface of the elongated tube element 4, between first and second wall parts 10, 11 and/or on the internal walls 14, 15 of the first and second wall parts 10, 11 and, the external surface 35 of the elongated tube element4 and/or the external surface 9 of the panel attaching element 5, 6, and the chamfered first and second distal ends 20,21 and/or the external surface 9 of the segment 8. At this assembling stage, the position of the panel element 7 may be adjusted thanks to the shape of the segment 8. Further, the panel element 7 may be slightly pivoted to fit against the elongated tube elements 4 and the corner elements 2. Upon assembly of the framework system according to the second embodiment, in one step comprises insertion of the panel element 7 into the panel attaching elements 38 of the elongated profile sections 3. Further, in another step the tube parts 24, 25, 26 of the corner elements 2 are inserted into the ends 27, 28, 29 of the elongated tube elements 4 of the elongated profile section 3. After a desired number of elongated tube elements 4 have be attached to the corner elements 2, the panel element 7 with attached attaching panel element(s) 38 is mounted and fixed onto the elongated tube elements 4. In another step, the abutting segment 34 of the flange profile sections 33 are mounted so that it abut against the external surface 35 of the elongated tube element 4 and so that the flanges 36, 37 lie against the panel element 7 as a supporting structure.

[0050] In the case adhesive is used, adhesive is applied onto the protruding free ends 27, 28, 29 of the tube parts 24, 25, 26 or on an internal surface of the elongated tube element 4, on the internal wall 14 of the first wall part 10 and, the external surface of the elongated tube element 4 and/or the external surface 9 of the panel attaching element 38, and the chamfered first and second distal ends 20, 21 and/or the external surface 9 of the segment 8, and the abutting segment 34 of the flange profile section 33. At this assembling stage, the position of the panel element 7 on the elongated tube element 4 may be adjusted thanks to the shape of the segment 8, and the panel element 7 may be slightly pivoted to fit against the elongated tube elements 4 and the corner elements 2.

Claims

1. A framework system (1) comprising: one or more corner elements (2) attached to an end of one or more elongated profile sections (3) , each of the elongated profile sections (3) comprise an elongated tube element (4) and at least one panel attaching element (5, 6; 38), further the elongated tube element (4) and the panel attaching element (5, 6; 38) is attached to each other, and at least one panel element (7) is attached to the panel attaching element (5, 6; 38), characterized in that the elongated tube element (4) comprises an external shape which is circular and the panel attaching element (5, 6; 38) comprises a segment (8) which is provided with an external surface (9) comprising a radius which is equal or larger than an external radius of the elongated tube element (4), and the external segment shape of the panel attaching element (5, 6; 38) is adapted to abut against the external shape of the elongated tube element (4), further the corner element (2), the elongated tube element (4), the panel attaching element (5, 6; 38), the panel element (7) may be attached to each other by means of an adhesive.

2. The framework system according to claim 1, wherein the panel attaching element (5,6; 38) comprises a first wall part (10) which is connected to the segment (8) of the panel attaching element (5,6; 38) such that a first corner (12) between the first wall part (10) and the segment (8) becomes pointed.

3. The framework system according to claim2, wherein the panel attaching element (5, 6) comprises the first wall part (10) and a second wall part (11) which are substantially parallel and connected by the segment (8) of the panel attaching element (5, 6) such that a first corner (12) between the first wall part (10) and the segment (8) becomes pointed and a second corner (13) between the second wall part (11) and the segment (8) becomes blunt.

4. The framework system according to claim 3, wherein the second corner (13) can be an abutting means (16), and the panel element (7) can abut against the abutting means (16) of the panel attaching element (5, 6; 38).

5. The framework system according to any of the claims 3 to 4 wherein at least one of first and second distal ends (20, 21) of the first and second wall parts (10, 11) of the panel attaching element (5, 6; 38) is chamfered and incline towards the elongated tube element (4).

6. The framework system according to claim 5, wherein the chamfered first and second distal ends (20, 21) of the first and second wall parts (10, 11) of the panel attaching element (5, 6; 38) extend outside an end surface (22) of the elongated tube element (4).

7. The framework system according to any of the claims 2 to 6, wherein the panel attaching element (5, 6; 38) is provided on the elongated tube element (4) such that a first external wall surface (18) of the first wall part (10) is arranged such that the first external wall surface (18) extend in a direction which is tangential to an external surface (35) of the tubular element.

8. The framework system according to any of the claims 1 to 7, wherein a distal portion (23) of the external segment surface (9) of the panel attaching element (5, 6; 38) abuts against the corner element (2).

9. The framework system according to any of the claims 1 to 8, wherein the corner element (2) comprises one or more tube parts (24, 25, 26) which are connected to each other in an angular relationship, and each tube part (24, 25, 26) comprises an external end (27, 28, 29) with a first external corner tube diameter (30) which is equal or smaller that an internal tube diameter (32) of the elongated tube element (4).

10. The framework system according to any of claims 1 to 9, wherein the panel attaching element (5, 6; 38) of the elongated profile section (3) comprises a flange profile section (33) comprising an abutting segment (34) partially complementary in shape to an external surface (35) of the elongated tube element (4) and comprises at least one of a first or second flange (36, 37).

11. The framework system according to claim 10, wherein the abutting segment (34) of the flange profile section (33) comprises a shape of a segment of a circle and the flange (36, 37)

12. The framework system according to claim 10, wherein the flange (36, 37) is arranged in a normal direction to the abutting segment (34).

13. The framework system according to any of the claim 11 or 12, wherein the panel element (7) is provided to abut against one of the flanges (36, 37) of the flange profile section (33) and abut against the first internal wall surface (14) of the first wall part (10).

14. The framework system according to any of the claims 10-13, wherein the corner element (2), the elongated tube element (4), the panel attaching element (5, 6; 38), the flange profile section (33), the panel element (7) may be attached to each other by means of an adhesive.

15. The framework system according to any of the claims 10-14, wherein the corner element (2), the elongated tube element (4), the panel attaching element (5, 6; 38), the elongated profile section (3), the panel element (7) and the flange profile section (33) may be manufactured of carbon fiber.

16. Vehicle comprising the framework system (1) according to any of the claims 1-15.

17. Method for assembly of a framework system comprising one or more corner elements (2), one or more elongated profile sections (3), whereof each elongated profile section (3) comprise an elongated tube element (4) and at least one panel attaching element (5, 6; 38), and at least one panel element (7) according to any one of the claims 1-15, wherein the method comprises the steps: -assembly of the elongated tube elements (4) with the corner elements (2), -assembly of the panel element (7) with the panel attaching element (5, 6; 38), -assembly of the panel attaching element (5, 6; 38) mounted onto the panel element (7) onto the elongated tube elements (4) attached to the corner elements (2).

18. Method for assembly of a framework system according to claim 17, which framework system further comprises a flange profile section (33), wherein the method comprises the step: -assembly of the flange profile section (33) onto the panel element (7) and onto the elongated tube element (4).