EP0680793B1 - Method and apparatus for making a building structure form with a flat stiffened plate part - Google Patents

Method and apparatus for making a building structure form with a flat stiffened plate part Download PDF

Info

Publication number
EP0680793B1
EP0680793B1 EP95201157A EP95201157A EP0680793B1 EP 0680793 B1 EP0680793 B1 EP 0680793B1 EP 95201157 A EP95201157 A EP 95201157A EP 95201157 A EP95201157 A EP 95201157A EP 0680793 B1 EP0680793 B1 EP 0680793B1
Authority
EP
European Patent Office
Prior art keywords
ridge
plate
ridges
thickness
stiffening
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.)
Expired - Lifetime
Application number
EP95201157A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0680793A1 (en
Inventor
Jacobus A.P. Van Geel
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.)
VAN GEEL LEGRAND B.V.
Original Assignee
VAN GEEL SYSTEMS BV
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 VAN GEEL SYSTEMS BV filed Critical VAN GEEL SYSTEMS BV
Publication of EP0680793A1 publication Critical patent/EP0680793A1/en
Application granted granted Critical
Publication of EP0680793B1 publication Critical patent/EP0680793B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B21D31/046—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal making use of rotating cutters

Definitions

  • the invention relates to a method for stiffening plate-like material for a spatial structural member, for example a cable trough, which stiffening takes place by locally pressing through the material to form ridges.
  • the object of the invention is to make the spatial structural members such that thinner material can for instance suffice, wherein the plate-like wall parts thereof will not bend or the like.
  • a plate-like part of the structural member is stiffened with bending or ridges in order to obtain a profile-like plate part.
  • the drawback to arranging such ridges is that the deformation of the plate material results in extra tensions in that plate-like part, whereby the structure does not remain in itself flat, but will easily deform through internal tensions.
  • the invention has the object of obviating the above drawback and provides to this end a method which is characterized in that on at least one side of the ridge the thickness of the material is made locally smaller, whereby the material is made longer.
  • the thickness reduction is preferably obtained according to the invention by arranging a flattened strip which runs parallel to the stiffening ridge.
  • the flattened strip and the stiffening ridge can be arranged simultaneously in the material, for example by doing this continuously using rollers or the like.
  • the invention also proposes to embody the flattened strip for reducing the thickness of the plate in the same order of magnitude as the length of the stiffening ridge.
  • the remaining plate parts outside the zone stiffened by the stiffening ridges to a separate cold working, for example bending to standing wall parts or the like in order to form the desired spatial structural member.
  • These parts do not have to comprise any stiffening elements or compensation therefor in the form of flattened strips.
  • This cold deformation can be carried out either before or after the arrangement of the stiffening ridges in the plate-like material.
  • the invention further relates to an apparatus for performing the method, of the invention as defined in claim 6.
  • This flattening rib can be arranged on the same pair of rollers as those suitable for arranging the stiffening rib, whereby the production process can take place continuously owing to the accurate positioning of the flattened strip relative to the stiffening rib in the plate material.
  • the invention further relates to a building structure form of plate material and to a building structure form in the form of a cable trough as defined in claims 8 and 9 respectively.
  • the plate-like material 1 which has to be worked in fig. 1 here takes the form of a cable trough, the bottom part 2 of which extends horizontally and is carried through between two rollers 3, 4 of a pair of rollers in the direction of the arrow P1.
  • two downward facing longitudinal walls 5 connect to the bottom plate 2, wherein it is noted that both bottom plate 2 and longitudinal walls 5 can be provided with a determined perforation in the form of slotted holes 6 or round holes 7.
  • the free edge of the wall strips 5 can further be bent over at 8, which can take place in random manner.
  • the cable trough 1 is of course depicted in reverse sense, that is, it is viewed from the underside of the bottom plate 2.
  • the pair of rollers 3, 4 serves to arrange stiffening ridges 10 which run parallel to each other and which extend transversely of the longitudinal direction, that is, transversely of the direction of forward movement P1.
  • the plate material is therefore pressed through locally, this such that the stiffening ridges 10 avoid bending of the bottom plate 2 in transverse direction, whereby thinner plate material can suffice and wherein greater breadths of the bottom plate 2 can be obtained.
  • stiffening ridges 10 in bottom plate 2 is realized by the elevated ridges 11 on the roller 3 which co-act with recessed parts 12 in the roller 4. This is further elucidated in the cross section of fig. 2, which shows that when the rollers 3, 4 engage with each other, the elevated ridge presses through the plate 2 to form the stiffening rib 10.
  • roller 3 is embodied, in addition to the rib 11, with a flattening member 13 in the form of a small elevation on the outer surface of the roller 3, which extends parallel along the elevation 11 and which serves together with the counter-surface of the roller 4 to locally reduce the thickness of plate material 2 and thus provide material for the deforming of the stiffening ridge 10.
  • This thickness reduction is therefore a length compensation of the plate part 2 of the spatial structural member, whereby the above stated internal tensions can be eliminated.
  • elevation 13 can also be arranged on the roller 4 instead of roller 3 or that it can still be placed on both rollers such that while the material is reduced in thickness it is not pressed through.
  • the degree of thickness reduction depends of course on the height of the stiffening ridge 10 and the material requirement involved herein.
  • FIG. 3 An alternative embodiment is shown in fig. 3 wherein not only are ribs and flattened compensation strips 14 arranged transversely of the longitudinal direction, parallel to the direction of forward movement P1 of the material strip, but wherein a stiffening rib 20 is also obtained in the plate material parallel to the side edges by an elevation 21 running round roller 3.
  • the thus created breadth reduction of plate 1 is compensated by arranging flattened strips 22 and 23 on either side of the longitudinal stiffening ridge which are obtained by the respective elevations 24 and 25 on roller 3.
  • the plate 1 according to fig. 3 is thus compensated not only in the length dimension but also in the breadth dimension.
  • the advantage of this compensation is that the longitudinal strips 26 along the outside edges of the plate 1 can undergo a random cold deformation, such as for instance bending to a longitudinal wall 5 as in fig. 1, but also by arranging beaded edges and the like without internal tensions being created in the total construction.
  • stiffening ridges 10 can of course take random forms, for example Z-shaped, can further enclose a different angle with the longitudinal edges, for example an angle of 45°, can be intersecting and so on, wherein it is noted that the flattened strips 14 for compensating for the length or breadth dimension can have the same form as the stiffening ridges because they extend substantially parallel thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Building Environments (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Laminated Bodies (AREA)
  • Details Of Indoor Wiring (AREA)
EP95201157A 1994-05-04 1995-05-04 Method and apparatus for making a building structure form with a flat stiffened plate part Expired - Lifetime EP0680793B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9400739 1994-05-04
NL9400739A NL9400739A (nl) 1994-05-04 1994-05-04 Werkwijze en inrichting voor het maken van een bouwconstructie met een vlak verstijfd plaatdeel.

Publications (2)

Publication Number Publication Date
EP0680793A1 EP0680793A1 (en) 1995-11-08
EP0680793B1 true EP0680793B1 (en) 2000-04-05

Family

ID=19864157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95201157A Expired - Lifetime EP0680793B1 (en) 1994-05-04 1995-05-04 Method and apparatus for making a building structure form with a flat stiffened plate part

Country Status (8)

Country Link
EP (1) EP0680793B1 (da)
AT (1) ATE191375T1 (da)
DE (1) DE69516033T2 (da)
DK (1) DK0680793T3 (da)
ES (1) ES2144568T3 (da)
GR (1) GR3033241T3 (da)
NL (1) NL9400739A (da)
PT (1) PT680793E (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19831932A1 (de) 1998-07-16 2000-01-20 Schuler Pressen Gmbh & Co Rotationsumformmaschine mit verbessertem Umformverhalten
DE19832897B4 (de) * 1998-07-22 2012-01-26 Schuler Pressen Gmbh & Co. Kg Rotationsumformmaschine
DE102010017253B4 (de) * 2010-06-07 2014-11-20 Aco Severin Ahlmann Gmbh & Co. Kg Vorrichtung zum Umformen eines Bauteils aus einem flächigen Halbzeug
DE102012005005B4 (de) 2012-03-13 2020-07-16 Jürgen Hackert Verfahren und Anordnung zur Herstellung von Elektroblechen
DE102013018995B4 (de) 2013-11-13 2015-06-18 Jörg Franke Anlage zum Rotationsschneiden von Elektroblechen
CN108723190B (zh) * 2018-07-21 2024-03-22 扬州广菱电子有限公司 一种齿状载体补强连续模结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673838A (en) * 1970-01-29 1972-07-04 Brownbuilt Ltd Continuous forming of transverse stiffening ribs on strip material
US4418558A (en) * 1981-07-27 1983-12-06 Bantam Systems, Inc. Method of manufacture of ventilated sheet metal floor members
JPH0716741B2 (ja) * 1990-11-02 1995-03-01 日本電装株式会社 コルゲートフィンの製造装置

Also Published As

Publication number Publication date
ATE191375T1 (de) 2000-04-15
EP0680793A1 (en) 1995-11-08
DE69516033D1 (de) 2000-05-11
NL9400739A (nl) 1995-12-01
DE69516033T2 (de) 2009-09-17
ES2144568T3 (es) 2000-06-16
GR3033241T3 (en) 2000-09-29
PT680793E (pt) 2000-07-31
DK0680793T3 (da) 2000-08-14

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