EP0495738A1 - Verstärktes Metallelement eines Teleskopträgers - Google Patents

Verstärktes Metallelement eines Teleskopträgers Download PDF

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Publication number
EP0495738A1
EP0495738A1 EP92440002A EP92440002A EP0495738A1 EP 0495738 A1 EP0495738 A1 EP 0495738A1 EP 92440002 A EP92440002 A EP 92440002A EP 92440002 A EP92440002 A EP 92440002A EP 0495738 A1 EP0495738 A1 EP 0495738A1
Authority
EP
European Patent Office
Prior art keywords
ribs
face
faces
sheet
edges
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.)
Ceased
Application number
EP92440002A
Other languages
English (en)
French (fr)
Inventor
Jean Diebolt
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 EP0495738A1 publication Critical patent/EP0495738A1/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • 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
    • E04C2003/0413—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 being built up from several parts
    • 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
    • E04C2003/0426—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
    • E04C2003/0439—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 cross-section comprising open parts and hollow parts

Definitions

  • the present invention relates to the field of the production of reconstituted hollow metal beams, in particular of large section beams, usable in particular in the field of handling and lifting, and relates to a reinforced hollow metal beam.
  • large hollow metal beams generally have a rectangular section and are produced by assembling sheet metal plates whose thickness is calculated according to the loads to be supported.
  • the different sheet metal plates constituting the section may have different thicknesses depending on the particular stresses to which said plates are subjected.
  • the plate forming the lower part of a beam constituting the arm is subjected predominantly to a bending, compression and buckling force, while the face opposite is more particularly intended to withstand tensile forces, the side walls ensuring the inertia of the beam.
  • the lower part of the arms is very often exposed to shocks and, as a result, to risks of deterioration which may cause a loss of the initial maximum lifting capacities, or even destruction of the boom and / or crane.
  • the present invention aims to overcome these drawbacks.
  • the reinforced hollow metal beam 1 advantageously has longitudinal parallel ribs 2 on at least one face.
  • the face provided with the ribs 2 is preferably arranged on the side of the beam subjected to the greatest bending, compression and buckling forces.
  • the ribs 2 can advantageously be produced by successive folds producing identical triangular sections or in the form of sinusoidal undulations or also in the form of juxtaposed inverted grooves.
  • the face provided with the ribs 2 has curved side edges which are inserted between the side faces 3 of the beam 1, their end projecting parallel to these faces 3 ( Figure 2) or being inserted between said faces 3 ( Figure 3).
  • the face provided with the ribs 2 it is possible, in order to improve the impact resistance of the face provided with the ribs 2, to provide the latter, on its side facing the inside of the beam 1, with a reinforcing sheet 4 of small thickness, this sheet being welded on the edges of said plate and possibly on the corresponding edges of the ribs. It is thus possible to make a partitioning of the face comprising the ribs 2, which has the effect, in the event of impacts on the projecting part of said ribs 2, to distribute the shock wave more uniformly by means of the sheet 4 and thereby prevent a corresponding deformation of said face.
  • This latter embodiment also makes it possible to use the spaces 5 delimited between the ribs 2 and the sheet 4 for housing the various fluid and / or energy pipes, so that the latter are effectively protected against deterioration. possible by impact.
  • two opposite faces of the beam are provided with parallel longitudinal ribs 2.
  • the provision for such a constitution is particularly suitable for a construction subjected to high stresses, more specifically to cranes.
  • such a beam is also applicable in other fields using metal beams subjected to stresses of various kinds, such as, for example, the construction of industrial vehicles, in particular chassis for hollow beam trailers and / or telescopic, industrial buildings, public works and other industrial applications where high stresses must be absorbed by using beams of a minimum weight and size.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)
EP92440002A 1991-01-18 1992-01-16 Verstärktes Metallelement eines Teleskopträgers Ceased EP0495738A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9100825 1991-01-18
FR9100825A FR2671850B1 (fr) 1991-01-18 1991-01-18 Poutre metallique creuse renforcee.

Publications (1)

Publication Number Publication Date
EP0495738A1 true EP0495738A1 (de) 1992-07-22

Family

ID=9409029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92440002A Ceased EP0495738A1 (de) 1991-01-18 1992-01-16 Verstärktes Metallelement eines Teleskopträgers

Country Status (2)

Country Link
EP (1) EP0495738A1 (de)
FR (1) FR2671850B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362148A (en) * 2000-05-10 2001-11-14 Bamford Excavators Ltd Machine having a working arm
EP1251217A1 (de) * 2001-04-19 2002-10-23 Danilo Giannini Träger und zugehöriges Verfahren zu seiner Herstellung
EP1314835A1 (de) * 2001-10-22 2003-05-28 Ingenieria de Encofrados y Servicios, S.L. Träger für Schalungselemente
CN104180151A (zh) * 2014-08-21 2014-12-03 宋宇光 异型支撑用6字形管

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2125691A (en) * 1933-11-22 1938-08-02 Budd Edward G Mfg Co Sheet metal beam
FR953577A (fr) * 1946-10-04 1949-12-08 Degerfors Jarnverks Aktiebolag Perfectionnements à la construction de poutres métalliques soudées
US2664179A (en) * 1949-04-27 1953-12-29 Jacob M Gwynne Nailable metal structural member
FR1237928A (fr) * 1959-06-26 1960-08-05 Profil métallique chemisé et son procédé de fabrication
FR1373313A (fr) * 1963-10-08 1964-09-25 Hedlund Brdr Ab Procédé de suppression de la déformation de flambage des poutres
FR2001343A7 (de) * 1968-02-05 1969-09-26 Granges Hedlund
DE2817587A1 (de) * 1977-04-22 1978-11-09 Urzadzen Mech Bumar Labendy Kastentragwerk
CH650302A5 (en) * 1980-11-25 1985-07-15 Kurt Gassler Set of structural elements for erecting wall and/or floor structures, in particular in exhibition construction

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2125691A (en) * 1933-11-22 1938-08-02 Budd Edward G Mfg Co Sheet metal beam
FR953577A (fr) * 1946-10-04 1949-12-08 Degerfors Jarnverks Aktiebolag Perfectionnements à la construction de poutres métalliques soudées
US2664179A (en) * 1949-04-27 1953-12-29 Jacob M Gwynne Nailable metal structural member
FR1237928A (fr) * 1959-06-26 1960-08-05 Profil métallique chemisé et son procédé de fabrication
FR1373313A (fr) * 1963-10-08 1964-09-25 Hedlund Brdr Ab Procédé de suppression de la déformation de flambage des poutres
FR2001343A7 (de) * 1968-02-05 1969-09-26 Granges Hedlund
DE2817587A1 (de) * 1977-04-22 1978-11-09 Urzadzen Mech Bumar Labendy Kastentragwerk
CH650302A5 (en) * 1980-11-25 1985-07-15 Kurt Gassler Set of structural elements for erecting wall and/or floor structures, in particular in exhibition construction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362148A (en) * 2000-05-10 2001-11-14 Bamford Excavators Ltd Machine having a working arm
US6699000B2 (en) 2000-05-10 2004-03-02 J. C. Bamford Excavators Limited Machine having a working arm
GB2362148B (en) * 2000-05-10 2004-03-24 Bamford Excavators Ltd A machine having a working arm
EP1251217A1 (de) * 2001-04-19 2002-10-23 Danilo Giannini Träger und zugehöriges Verfahren zu seiner Herstellung
EP1314835A1 (de) * 2001-10-22 2003-05-28 Ingenieria de Encofrados y Servicios, S.L. Träger für Schalungselemente
CN104180151A (zh) * 2014-08-21 2014-12-03 宋宇光 异型支撑用6字形管

Also Published As

Publication number Publication date
FR2671850A1 (fr) 1992-07-24
FR2671850B1 (fr) 1993-07-16

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