EP1382762A1 - Méthode de fabrication de profilés métalliques ayant un faible degré de segmentation pendant leur pliage manuel et des profilés ainsi obtenus - Google Patents

Méthode de fabrication de profilés métalliques ayant un faible degré de segmentation pendant leur pliage manuel et des profilés ainsi obtenus Download PDF

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Publication number
EP1382762A1
EP1382762A1 EP02425470A EP02425470A EP1382762A1 EP 1382762 A1 EP1382762 A1 EP 1382762A1 EP 02425470 A EP02425470 A EP 02425470A EP 02425470 A EP02425470 A EP 02425470A EP 1382762 A1 EP1382762 A1 EP 1382762A1
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EP
European Patent Office
Prior art keywords
sheared
section
shaped
tabs
shearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02425470A
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German (de)
English (en)
Inventor
Antonio Guerrasio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP02425470A priority Critical patent/EP1382762A1/fr
Publication of EP1382762A1 publication Critical patent/EP1382762A1/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2002/7481—Locating rails with adjustable curvature

Definitions

  • Vertebra section A cheaper but less effective alternative to Vertebra section is the use of sections having one continuous side, while the other side and the base are provided with triangular slots the apexes of which are positioned along the bending line of the continuous side, such slots being spaced apart by a pitch and positioned crosswise to the section.
  • the present invention aims at providing a particular shearing capable of overcoming and solving the problems set forth above and applied to "U”, “C”, “L”, “Z”, “E”, and double “L” sections.
  • the technical principle at the base of this invention belongs to the rotational kinetics: a couple of rotation centres causes the material to converge to the axis of symmetry thereof.
  • the surface of the vertical side is not sheared, while "Y"-shaped notches are cut into the base surface with a determined pitch, both ends of the "V"-shaped portion of each "Y"-shaped notch lying along the square bending line and having a distance from each other which is half the distance between the "I"-shaped portions of the notches.
  • the "I"-shaped portion has the shape of an isosceles triangle, the apex of which is positioned at the bending line and the length of the base corresponds to the maximum distance between the cut tabs of the section base.
  • the "V"-shaped portion of the notch is formed of two like triangles being symmetric to an axis coinciding with the height of the isosceles triangle of the "I"-shaped portion of the notch and joined by a vertex of their bases and having their apex angles (the vertexes of which are placed on the bending line of the section) equal to half the apex angle of the isosceles triangle.
  • the material When the continuous side is bent, the material is also folded vertically along axes through the vertexes of the triangles forming the "V"-shaped portion of the "Y"-shaped notches, such vertexes being the centres of rotation of the base tabs that rotate until the opposite edges of the sheared portions come into contact with each other.
  • the base should be lengthened by an amount which is equal to the height of the tab to be manufactured at the cut side so that the shearing is prosecuted till the end of such side.
  • the tabs provided by shearing have enough surface to allow the plate to be screwed so as to withstand the pressure of the screws as well as to prevent the screws from missing the material between the free spaces of the tabs and to avoid the excessive segmentation of the bending.
  • a bent, stiffened section without weld material ready to be coated by plaster-cardboard plates is provided at last by carrying out such operation along the whole section.
  • the "L"-shaped section of Fig. 3 is obtained from a flat sheet (1) from which material is partially removed by shearing, thus forming a particular "Y"-shaped notch consisting of a "V"-shaped slot (5) and an "I”-shaped slot (6).
  • the sheet is then bent along a longitudinal bending line (3) by folding by 90° the continuous non-sheared side (2) so that the vertexes (8) and (9) of "V"-shaped slot fall on the bending line which separates the orthogonal planes of the continuous side and the sheared side formed of a number of tabs (4) with hexagonal shape.
  • the "U"-shaped section of Fig. 4 is obtained from the sheared sheet as in Fig. 2 from which some material has been removed by shearing "Y"-shaped notches and further material from area (11), while hexagonal tabs (4) extend by a further tab (10); such shearing are made, as in Fig. 1, with a determined pitch (P) crosswise to the sheet.
  • Non-sheared side (2) is bent by 90° as in the case of "L"-shaped section, then tabs (10) are bent by 90° along the bending line (12) to the same direction as side (2) to provide a "U"-shaped section having a base width (B) and tabs with a height (A) which may also have a size other than side (2).
  • the section of Fig. 14 is compared with a section obtained by a triangular shearing (16), as shown in Fig. 13, by providing sections having the same pitch (P), the same base width (B) and the same width of the sheared tabs (10) and (17). As a result, also the distance between the tabs is the same.
  • the "U"-shaped section has been chosen for such comparison (Fig. 15).
  • a triangular shearing (Fig. 16)
  • the situation achieved by the curved section having a "Y"-shaped shearing (Fig. 17) is different.
  • the axes of rotation are eight: (21), (22), (23), (24), (25), (26), (27) and (28), i.e. two axes of rotation for each tab.
  • FIG. 27 shows the efficiency of such a solution to provide a curved wall, the carrying structure of which consists of two "U"-shaped sections curved and stiffened by punching the material (29) and by inserting uprights into the "U"-shaped sections.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP02425470A 2002-07-19 2002-07-19 Méthode de fabrication de profilés métalliques ayant un faible degré de segmentation pendant leur pliage manuel et des profilés ainsi obtenus Withdrawn EP1382762A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02425470A EP1382762A1 (fr) 2002-07-19 2002-07-19 Méthode de fabrication de profilés métalliques ayant un faible degré de segmentation pendant leur pliage manuel et des profilés ainsi obtenus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425470A EP1382762A1 (fr) 2002-07-19 2002-07-19 Méthode de fabrication de profilés métalliques ayant un faible degré de segmentation pendant leur pliage manuel et des profilés ainsi obtenus

Publications (1)

Publication Number Publication Date
EP1382762A1 true EP1382762A1 (fr) 2004-01-21

Family

ID=29762766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425470A Withdrawn EP1382762A1 (fr) 2002-07-19 2002-07-19 Méthode de fabrication de profilés métalliques ayant un faible degré de segmentation pendant leur pliage manuel et des profilés ainsi obtenus

Country Status (1)

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EP (1) EP1382762A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999021669A1 (fr) * 1997-10-24 1999-05-06 Aluterm S.R.L. Barres profilees metalliques ou non metalliques avec sections transversales en l, en u et en z, pour la realisation de cadres de support structurels pour panneaux de placoplatre et similaires, et procede de fabrication de ces barres
WO2001042579A1 (fr) * 1999-12-10 2001-06-14 Antonio Guerrasio Section de canal partiellement rigide pourvue d'encoches transversales rapprochees et d'une surface cotelee longitudinale continue situee sur le flan de base entre les flans lateraux discontinus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999021669A1 (fr) * 1997-10-24 1999-05-06 Aluterm S.R.L. Barres profilees metalliques ou non metalliques avec sections transversales en l, en u et en z, pour la realisation de cadres de support structurels pour panneaux de placoplatre et similaires, et procede de fabrication de ces barres
WO2001042579A1 (fr) * 1999-12-10 2001-06-14 Antonio Guerrasio Section de canal partiellement rigide pourvue d'encoches transversales rapprochees et d'une surface cotelee longitudinale continue situee sur le flan de base entre les flans lateraux discontinus

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