EP2492028A2 - Procédé d'application d'une rosette sur un tuyau - Google Patents

Procédé d'application d'une rosette sur un tuyau Download PDF

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Publication number
EP2492028A2
EP2492028A2 EP12001074A EP12001074A EP2492028A2 EP 2492028 A2 EP2492028 A2 EP 2492028A2 EP 12001074 A EP12001074 A EP 12001074A EP 12001074 A EP12001074 A EP 12001074A EP 2492028 A2 EP2492028 A2 EP 2492028A2
Authority
EP
European Patent Office
Prior art keywords
rosette
hole
tube
plane
pipe
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.)
Granted
Application number
EP12001074A
Other languages
German (de)
English (en)
Other versions
EP2492028B1 (fr
EP2492028A3 (fr
Inventor
Erich Spreitzer
Martin Leichtfried
Martin Kirchweger
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.)
WELSER PROFILE AUSTRIA GmbH
Original Assignee
WELSER PROFILE AUSTRIA GmbH
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 WELSER PROFILE AUSTRIA GmbH filed Critical WELSER PROFILE AUSTRIA GmbH
Publication of EP2492028A2 publication Critical patent/EP2492028A2/fr
Publication of EP2492028A3 publication Critical patent/EP2492028A3/fr
Application granted granted Critical
Publication of EP2492028B1 publication Critical patent/EP2492028B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
    • E04G1/12—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means comprising members of special, e.g. composite, cross-section or with lugs or the like or lateral apertures for supporting or attaching other members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements

Definitions

  • the present invention relates to a method of applying a rosette to a pipe.
  • Such tubes are z. B. used as supports in scaffolding. These are mostly metal pipes with a diameter of about 50 mm and a wall thickness of about 3 mm.
  • To mount the scaffold planks serve so-called rosettes, which are pushed onto the tubes and then welded to the pipe.
  • the welding of the rosettes to the metal pipe usually requires manual labor and leads to structural changes in the pipe.
  • the use of galvanized pipes requires subsequent post-galvanizing.
  • non-galvanized pipes can be welded with rosettes, after which the pipes must then be galvanized.
  • the object of the present invention is to avoid the disadvantages caused by welding and to provide a cost-effective method for applying rosettes to a pipe.
  • the rosette has a through hole for insertion of the tube and that initially the edge portion of the through hole is bent out of the plane of the rosette, so that the clear distance of the opposite edges of the through hole is greater than the outer dimensions of the tube , and the repositioning of the rosette on the tube of the peripheral area surrounding the through-hole is pushed back into the plane of the rosette, whereby the clear distance of the opposite edges of the through-hole is reduced to a dimension which is smaller than the original outer dimension of the tube.
  • the rosette is pressed onto the pipe, whereby both deformations on the rosette and deformations take place on the pipe.
  • the tube gets a constriction in the area of the rosette.
  • the method is suitable for fastening all possible flat metal components on a pipe, including plates or sheets, which have a greater extent than the rosettes used for the framework manufacturing.
  • the tube has a cylindrical outer circumference.
  • the rosette has a round through hole.
  • the edges of the through hole lie all over the outer tube wall when the margins are pushed back into the plane of the rosette. As a result, a very uniform loading of the tube is achieved.
  • the rosette has a star-shaped through hole with inwardly projecting cantilevers, wherein the diameter of the through hole is determined by the free ends of the cantilevers.
  • These cantilevers press like the teeth of a bit in the outer circumference of the tube, so that a positive connection is achieved not only in the longitudinal direction of the tube, but also in the circumferential direction of the tube shell.
  • a method in which the bending out of the edge region is effected by impressing a circumferential bead around the through hole, so that the edge of the through hole lies substantially in the plane of the rosette, while the radially outer edge region is pushed out of the plane is, and after insertion of the tube, the bead is pushed back into the plane of the rosette.
  • This approach has the advantage that during the pressing back of the edge region of the rosette takes place virtually no relative movement between the edge of the through hole and the tube in the longitudinal direction. The edge is merely pressed radially into the lateral surface of the tube, while the deformation work takes place substantially exclusively in the material of the rosette itself.
  • the material thickness of the rosette is significantly greater than the wall thickness of the tube, and preferably at least twice to three times as large. This material strength not only ensures a sufficient deformation force to constrict the tube; it also serves to avoid that there are dislocations within the rosette. As low has also been found, if the degree of deformation of the tube is about half to simple wall thickness of the tube.
  • the output arrangement consists of a tube 1 and a rosette surrounding the tube 2. Both are in the FIGS. 1 to 4 each shown in cross section, wherein the tube 1 is usually a scaffold tube and accordingly much longer than in Fig. 1 shown.
  • the material thickness A of the rosette 2 is in the embodiment shown here about 2 1/2 times as large as the wall thickness of the tube 1.
  • the rosette 2 has a through hole 3, the opposite edges 4 have a clearance C, in the Fig. 1 shown arrangement is greater than the outer diameter D of the tube.
  • Fig. 1 clearly shows that around the through hole a circumferential bead 5 is formed, which forms the edge region of the through hole 3.
  • the edges 4 themselves lie in the plane of the rosette 2. Only the bead is bent out of the plane or embossed.
  • the rosette 2 is pushed in the embodiment just described on the tube 1, to the position at which a later attachment is to take place.
  • the Fig. 3 to 6 show a further embodiment of the invention.
  • the essential difference to the embodiment of the Fig. 1 and 2 is that the through hole 3 is not round, but star-shaped. Due to the star-shaped configuration of the through hole 3, cantilevers 6 are formed which project radially inwards and whose free ends 7 form the edges 4 of the through-hole 3.
  • a circumferential bead 5 are pressed into the rosette 2 (see. Fig. 3 ), after which, after pushing out the rosette 2 on the tube 1, the bead 5 is pushed back into the plane of the rosette (see. Fig. 4 ).
  • the free ends of the cantilever arms 6 press into the wall of the tube 1, which now not only creates a positive connection in the longitudinal direction of the tube, but also in the circumferential direction of the tube.
  • the star-shaped configuration also has the advantage that lower forces are required for impressing the bead and that even when pressing back the bead, lower forces are sufficient to press the cantilevers into the pipe wall.
  • the deformation depth in the pipe wall is in the embodiments shown here about half the wall thickness B of a pipe.
  • the invention has been described herein with reference to the preparation of a scaffold tube.
  • different-area metal parts can be mounted on pipes having other cross sections, for example a rectangular cross section.
  • the shape of the rosette may differ from the shape shown in the figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Connection Or Junction Boxes (AREA)
  • Details Of Indoor Wiring (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
EP20120001074 2011-02-23 2012-02-17 Procédé d'application d'une rosette sur un tuyau Active EP2492028B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110012097 DE102011012097A1 (de) 2011-02-23 2011-02-23 Verfahren zum Aufbringen einer Rosette auf ein Rohr

Publications (3)

Publication Number Publication Date
EP2492028A2 true EP2492028A2 (fr) 2012-08-29
EP2492028A3 EP2492028A3 (fr) 2013-02-20
EP2492028B1 EP2492028B1 (fr) 2013-12-25

Family

ID=45655096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120001074 Active EP2492028B1 (fr) 2011-02-23 2012-02-17 Procédé d'application d'une rosette sur un tuyau

Country Status (3)

Country Link
EP (1) EP2492028B1 (fr)
DE (1) DE102011012097A1 (fr)
ES (1) ES2449486T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015000743A1 (de) 2015-01-19 2016-07-21 Ritterwand Gmbh & Co. Kg Metall-Systembau Rosette

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016121056A1 (fr) 2015-01-29 2016-08-04 三菱電機株式会社 Dispositif de main courante pour trottoir roulant
DE102017208127A1 (de) * 2017-05-15 2018-11-15 Peri Gmbh Gerüstrosette, Gerüststiel sowie Verfahren zum Herstellen der Gerüstrosette
DE102021131809A1 (de) 2021-12-02 2023-06-07 Grammer Aktiengesellschaft Verfahren zur Herstellung einer Verbindung für ein Ausstattungsteil eines Fahrzeuges

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8211065U1 (de) * 1982-04-19 1982-10-07 Flashlok Interscaffold AG, 63100 Zug Bausatz fuer ein schnellbaugeruest
JPS5916634A (ja) * 1982-07-19 1984-01-27 Riken Corp 管状部材と環体部品の結合構造とその結合方法
DE19850003A1 (de) * 1998-10-29 2000-05-04 Plettac Ag Form- und Kraftschlüssige Verbindung zwischen einem vertikalen Gerüstrohr und einer Haltevorrichtung
DE10355495A1 (de) * 2003-11-27 2005-07-21 Peri Gmbh Zerlegbares Gerüst
DE102005007716A1 (de) * 2005-02-18 2006-08-31 Ulrich Huperz Schweißtechnik GmbH & Co.KG Sitzhöhenverstellung
ITBS20060029A1 (it) * 2006-02-17 2007-08-18 Nyco System S R L Metodo di fissaggio di una flangia di aggancio dei traversi di collegamento tra i montanti di un ponteggio al tubo del montante stesso
JP4921019B2 (ja) * 2006-04-06 2012-04-18 昭和電工株式会社 部材同士の接合方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015000743A1 (de) 2015-01-19 2016-07-21 Ritterwand Gmbh & Co. Kg Metall-Systembau Rosette
DE102015000743B4 (de) 2015-01-19 2024-06-20 Ritterwand Gmbh & Co. Kg Metall-Systembau Rosette

Also Published As

Publication number Publication date
DE102011012097A1 (de) 2012-08-23
EP2492028B1 (fr) 2013-12-25
ES2449486T3 (es) 2014-03-19
EP2492028A3 (fr) 2013-02-20

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