EP1251217A1 - Träger und zugehöriges Verfahren zu seiner Herstellung - Google Patents

Träger und zugehöriges Verfahren zu seiner Herstellung Download PDF

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Publication number
EP1251217A1
EP1251217A1 EP02008709A EP02008709A EP1251217A1 EP 1251217 A1 EP1251217 A1 EP 1251217A1 EP 02008709 A EP02008709 A EP 02008709A EP 02008709 A EP02008709 A EP 02008709A EP 1251217 A1 EP1251217 A1 EP 1251217A1
Authority
EP
European Patent Office
Prior art keywords
folds
metal sheet
horizontal beam
horizontal
inclusive
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Withdrawn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
EP02008709A
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English (en)
French (fr)
Inventor
Danilo Giannini
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1251217A1 publication Critical patent/EP1251217A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/14—Bars, uprights, struts, or like supports, for cabinets, brackets, or the like
    • A47B96/1441—Horizontal struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped

Definitions

  • the invention concerns a beam for supports and the method to obtain it.
  • the state of the art includes beams consisting of tubular profiles with a polygonal section obtained starting from metal sheet and continuously welding butt-wise the two closing edges of the profile.
  • these beams In the case of stores, in relation to the thickness of the original metal sheet and in relation to the dimensions of the two sides of the rectangle or square, these beams have a thickness greater than necessary on the long sides which, when installed, are positioned vertically, and a thickness less than necessary on the short sides which, in practice, are positioned horizontally when installed.
  • the French patent FR-A-1,006,281 discloses a beam with a substantially rectangular transverse section, formed by a first upper metal sheet shaped like an upside-down U, and a second plane metal sheet fixed below the first.
  • the first sheet is folded so as to define fretted folds on the upper side and triangular folds on the lateral sides. The distance between the fretted folds however does not give enough strength and resistance to vertical loads.
  • the French patent FR-A-2,151,641 discloses a beam formed by coupling two metal sheets folded into a T and made integral with each other in correspondence with the shanks of the two Ts, arranged horizontally and having undulated folds which make the structure weak in the central part.
  • the British patent GB-A-1,566,702 discloses a beam composed of an undulated and folded metal sheet; this beam is very complex, difficult to achieve and therefore not very economical.
  • EP-A-0,495,738 discloses a beam wherein the lower side consists of a metal sheet folded into a zig-zag and welded to a metal sheet above which is shaped like an upside-down U and without folds. This beam, however, does not give much resistance to surface loads.
  • EP-A-0,855,157 discloses a beam made with a metal sheet folded so as to form a substantially rectangular transverse section, in which, on the upper and lower short sides, metal reinforcement elements are welded, which make the beam heavy and expensive.
  • the present invention intends to solve the above-mentioned problems with a new beam obtained with a new method.
  • a tubular profile with polygonal transverse section is obtained starting from a thin metal sheet.
  • the sheet has a thickness varying from about 1.0 mm to 2.5 mm to obtain a section varying from 40 to 60 mm for the short side and from 80 to 150 mm for the long side. These sizes depend on the unitary load which the beam has to support.
  • At least the short side which is positioned above consists of a desired sequence of continuous folds of a desired height.
  • This height varies from 6 mm to 15 mm.
  • the folds are made in sequence with a suitable number of forming passes.
  • the folds obtained are such as to keep the rising sheet and the descending sheet, and so on in alternation, in close contact so as to make a single piece.
  • the folds are connected together by means of a series of forming passes. In the same passes the edges are closed by means of seaming.
  • the profile is subsequently formed through sizing rollers to become a single piece, the whole thing being produced in line from a strip of sheet.
  • the folds are connected to each other by a point or line of welding, all made at intervals.
  • the lateral coupling of the folds is obtained with a U-shaped rider element, put at intervals or continuously for substantial lengths, which is inserted with its terminal legs between the two lateral folds.
  • the folded zone is made integral with a through pin put at intervals and welded at the ends.
  • both the short sides are obtained in the same way and that is with folds.
  • this modification of the line can be U-shaped, V-shaped or C-shaped, or have another shape, as the geometric shape is unimportant.
  • the beam is obtained starting from a strip of a desired width and, starting from the central fold, by making the folds which make up at least a short side.
  • the other folds, the packing thereof and the clamping of the lateral edges occur in a progressive sequence, with two steps that may be carried out simultaneously.
  • Fig. 1 shows a beam 10 according to the invention, obtained from a metal sheet folded so as to define a tubular profile having a substantially rectangular transverse section.
  • the tubular profile has two long sides 18a and 18b, an upper short side 11a and a lower short side 11b.
  • the short sides 11a and 11b are substantially horizontal.
  • Fig. 2 shows a variant of the upper short side 11a where the folds 12 are connected with each other by welding points 13 operating in the ridges of the loops 20.
  • Figs. 3 and 4 show further variants of the short side 11a of the beam 10.
  • the folds 12 are connected with each other by a pin 14 which is made integral, at its ends, with the long sides 18a and 18b.
  • Fig. 4 shows the lateral clamping of the loops 20 by means of a U-shaped rider element 15 which has terminal legs 16a and 16b which are inserted, or point, respectively, into the loops 20 of two lateral folds 17a and 17b, and is made integral therein by means of welding.
  • the method to obtain the beam 10 as described heretofore comprises a step of folding a strip of metal sheet, of the desired length, to form said folds 12 progressively starting from a central fold.
  • the beam 10 as described heretofore is obtained by means of a forming machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Aerials With Secondary Devices (AREA)
EP02008709A 2001-04-19 2002-04-18 Träger und zugehöriges Verfahren zu seiner Herstellung Withdrawn EP1251217A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001UD000073A ITUD20010073A1 (it) 2001-04-19 2001-04-19 Trave per sostegni e relativo procedimento di realizzazione
ITUD20010073 2001-04-19

Publications (1)

Publication Number Publication Date
EP1251217A1 true EP1251217A1 (de) 2002-10-23

Family

ID=11460567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008709A Withdrawn EP1251217A1 (de) 2001-04-19 2002-04-18 Träger und zugehöriges Verfahren zu seiner Herstellung

Country Status (2)

Country Link
EP (1) EP1251217A1 (de)
IT (1) ITUD20010073A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004038122A1 (en) 2002-10-23 2004-05-06 Grant Charlwood A beam
CN103086106A (zh) * 2013-02-03 2013-05-08 东莞市顺力工业设备有限公司 一种单缝咬合横梁及货架和单缝咬合横梁制造方法
WO2014127401A1 (en) * 2013-02-19 2014-08-28 Monash University Load bearing structures
CN111571130A (zh) * 2020-05-11 2020-08-25 江西省金邦智能设备有限公司 一种用于货架承托横梁的型管及其制造工艺
RU216922U1 (ru) * 2021-06-28 2023-03-09 Алкадраин с.р.о. Конструкционный профиль для сухого строительства стен, перегородок, потолков и для крепления санузлов

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1006281A (fr) 1947-12-15 1952-04-21 Kastentrager G M B H Soc Procédé d'assemblage de poutres pour maisons ou constructions élevées et produits obtenus
FR2151641A6 (de) 1971-09-07 1973-04-20 Goutheraud Et Cie
GB1566702A (en) 1976-09-22 1980-05-08 Ti Metsec Ltd Purlins
EP0495738A1 (de) * 1991-01-18 1992-07-22 Jean Diebolt Verstärktes Metallelement eines Teleskopträgers
US5577796A (en) * 1991-09-06 1996-11-26 Norsk Hydro A.S. Structural beam and method of manufacture thereof
EP0855157A1 (de) 1997-01-10 1998-07-29 Losey Ltd Modulare Struktur für Metallregale oder dergleichen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1006281A (fr) 1947-12-15 1952-04-21 Kastentrager G M B H Soc Procédé d'assemblage de poutres pour maisons ou constructions élevées et produits obtenus
FR2151641A6 (de) 1971-09-07 1973-04-20 Goutheraud Et Cie
GB1566702A (en) 1976-09-22 1980-05-08 Ti Metsec Ltd Purlins
EP0495738A1 (de) * 1991-01-18 1992-07-22 Jean Diebolt Verstärktes Metallelement eines Teleskopträgers
US5577796A (en) * 1991-09-06 1996-11-26 Norsk Hydro A.S. Structural beam and method of manufacture thereof
EP0855157A1 (de) 1997-01-10 1998-07-29 Losey Ltd Modulare Struktur für Metallregale oder dergleichen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004038122A1 (en) 2002-10-23 2004-05-06 Grant Charlwood A beam
EP1554444A1 (de) * 2002-10-23 2005-07-20 Grant Charlwood TRûGER
EP1554444A4 (de) * 2002-10-23 2007-07-11 Grant Charlwood TRûGER
CN103086106A (zh) * 2013-02-03 2013-05-08 东莞市顺力工业设备有限公司 一种单缝咬合横梁及货架和单缝咬合横梁制造方法
WO2014127401A1 (en) * 2013-02-19 2014-08-28 Monash University Load bearing structures
CN111571130A (zh) * 2020-05-11 2020-08-25 江西省金邦智能设备有限公司 一种用于货架承托横梁的型管及其制造工艺
RU216922U1 (ru) * 2021-06-28 2023-03-09 Алкадраин с.р.о. Конструкционный профиль для сухого строительства стен, перегородок, потолков и для крепления санузлов

Also Published As

Publication number Publication date
ITUD20010073A1 (it) 2002-10-19

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