EP1503027B1 - Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist - Google Patents

Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist Download PDF

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Publication number
EP1503027B1
EP1503027B1 EP03425507A EP03425507A EP1503027B1 EP 1503027 B1 EP1503027 B1 EP 1503027B1 EP 03425507 A EP03425507 A EP 03425507A EP 03425507 A EP03425507 A EP 03425507A EP 1503027 B1 EP1503027 B1 EP 1503027B1
Authority
EP
European Patent Office
Prior art keywords
section
bending
base side
accordance
predisposed
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
EP03425507A
Other languages
English (en)
French (fr)
Other versions
EP1503027A1 (de
Inventor
Michele Calzoni
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.)
Elmec Srl
Original Assignee
Elmec Srl
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 Elmec Srl filed Critical Elmec Srl
Priority to DE60313314T priority Critical patent/DE60313314D1/de
Priority to AT03425507T priority patent/ATE360130T1/de
Priority to EP03425507A priority patent/EP1503027B1/de
Publication of EP1503027A1 publication Critical patent/EP1503027A1/de
Application granted granted Critical
Publication of EP1503027B1 publication Critical patent/EP1503027B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending

Definitions

  • the present invention relates in general to structures and frames made from sections and, more particularly, to a section predisposed for bending and to a frame made from a single piece of section.
  • Structures and frames made from sections are widely used in many sectors of industrial production.
  • four segments of one and the same section with their ends cut at 45° joined together to form a frame are often used to form the frame structure of a box-like container or the frame of a closing panel or a door.
  • Specific coupling or fixing means are needed to join the four segments together, their assembly is relatively laborious and the accuracy of the joined pieces depends to a large extent on the accuracy of the assembly operations.
  • the frame structure or the frame have sharp and almost cutting edges, and this is in contrast with accident-prevention regulations.
  • One aim of the present invention is to make available a section predisposed for bending that will make it possible to construct structures and frames with the use of few and non-specific coupling means and assure a very precise assembly without any particular precautions.
  • Another aim is to render possible the fabrication of structures and frames with a single piece of section predisposed for bending.
  • Yet another aim of the invention is to render possible the fabrication of structures and frames that will be devoid of sharp angles at corners and along the edges.
  • the sections capable of being used for implementing the invention shown in Figures 1 and 2 both have a flat base side 10, two lateral wings 11 that extend at right angles from the edges of the base side and other variously orientated straight or curved wings or ribs that, together with the base side and the lateral wings, define the body of the section.
  • the body of the section encloses closed longitudinal spaces and has edges and prominences that extend towards the interior and the exterior of the spaces and have the function of accommodating and/or supporting accessories of various types (hinges, locks, gaskets, etc.).
  • the sections are preferably made of some metal alloy, an aluminium alloy for example, that can be readily extruded, has relatively good mechanical stretching characteristics and is easily worked by means of tools.
  • a section of the type shown in Figure 1 is predisposed for bending along a transverse line of the base side by means of mechanical processing to produce a local weakening. More particularly, a cut is made in accordance with a first pre-determined angle (45° in the example) with respect to the plane of the base side 10 and a second cut in accordance with a second pre-determined angle (135° in the example) with respect to said plane, thereby removing material from the body of the section.
  • the vertex of the V-notch produced in this way forms an incision on the internal face of the base side.
  • the dash-dotted lines in Figure 3c define the vertex of the V-notch and the broken line indicates the plane that delimits the internal face of the base plane.
  • the incision is enlarged by means of milling machine in such a way as to obtain a groove of a substantially square section.
  • the groove has a bottom face 20 and two side walls 30, 30' at right angles to the base side that form, respectively, a sharp angle 32 and a smoothed or rounded angle 33 with the bottom face.
  • the angles of the V-notches are chosen according to the bending angle, i.e. the angle the section is required to assume after the bending. In the illustrated example, obviously, a right angle is obtained after the bending.
  • the depth of the incision and the groove and the width of the groove are chosen on the basis of the bending angle and the mechanical characteristics of the material (elongation, elasticity). In one practical case the base side has a thickness of 2.5 mm and the groove has a depth of 1.0 mm and a width of 4.5 mm.
  • the shape of the groove is of decisive importance for obtaining an accurate bend with a uniform distribution of the deformations of the base side in the region of the bend, i.e. in the region delimited by the bottom of the groove.
  • the deformation of the material begins along a well defined line, namely that of the sharp corner 32, and then extends gradually and uniformly right up to the rounded corner 33. Thanks to the uniform distribution of the deformations, the material remains integral and compact in the bending region and that makes it possible to bend even painted sections without the layer of paint becoming detached or cracked due to the effect of the bending stresses. Furthermore, the bending can be performed with the greatest precision without having to use special equipment to control the bending angle.
  • a preferred application of the section predisposed for bending in accordance with the invention envisages four notches to obtain bending angles of 90° separated from each other in such a way as to form a rectangular frame after the bending.
  • each side of the frame after the bending is affected by the shape of the grooves that delimit it; more particularly, considering a generic side of the frame, its length after the bending depends on the orientation of each of the grooves that delimit it: when one or the other of these grooves is oriented with its sharp angle closer to a predetermined reference point within the side than the rounded angle, i.e.
  • the side in question will be shorter than it would be if the sharp angle were "outside the side", i.e. further removed from the reference point than the rounded angle. Therefore, whenever the junction point has to be situated exactly at the centre of a side, the side in question has to be delimited by grooves that either have both their sharp angles within the side or both the sharp angles outside thereof. Naturally, if a perfectly rectangular frame is to be obtained, it is essential that the distance between the grooves of the side opposite to the one with the joint should be reduced or increased in a corresponding manner.
  • the side BC and the side DE will be affected in the same manner by the shape of the grooves that delimit them, so that the distance between the grooves B and C and the distance between the grooves D and E must be equal if one wants the two opposite sides BC and DE to be equal after the bending;
  • the amount of the difference will be determined in each case on the basis of the dimensions of the section and the grooves.
  • FIG. 5 A particularly advantageous manner of closing the frame is illustrated by Figure 5 and Figures 6a to 6c.
  • a milling operation is performed in proximity of one of the ends of the section in order to remove a part of the structure that delimits the channel 15 and to form a space 50 into which there can be inserted the entire length of a self-threading screw 51 and a tool for turning this screw.
  • the passage constituted by the channel segment that extends from the space 50 to the nearby end of the section is then enlarged in such a way as to make it possible for the screw to be inserted into it.
  • the position of the space 50 and the length of the screw are chosen in such a manner that the screw may project beyond the end of the section, as shown in Figure 6c.
  • the screw 51 is screwed, if necessary by means of an articulated screw driver (schematically shown in Figures 5 and 6a), into the channel 15 that opens onto the end of the section opposite to the one with the screw, until the joint is completely tight.
  • the bending may be preceded by making a hole at right angles to the plane of the base side in proximity of each of the bending regions and, more precisely, at a distance from the bending region such that, following the bending, it will be aligned with the channel 15 of the body.
  • a self-threading screw 17 is then screwed into the channel 15 until it becomes tight with its head flush against an internal wing of the body ( Figure 7a). If the section used is the one shown in Figure 2, it will be best to use two screws both for closing the frame and also for any stiffening thereof, naturally after having formed two spaces for inserting the screws that are to be screwed into the respective longitudinal channels.
  • the section predisposed for bending in accordance with the invention makes it possible to fabricate frames and framed structures without the use of special equipment for the bending, because this operation is performed manually, and without the use of specific fixing means, because this operation is carried out by using only one or more self-threading screws for closing and possibly also stiffening (the frame). Furthermore, thanks to the conformation of the bending notches, the bending radius is always uniform, so that the section may be painted before it is bent; rather, in the greater part of cases it may be painted even before the various machining operations.
  • the section may be predisposed for bending it through angles other than a right angle and, as regards the closing and the stiffening of the frames, traditional means can be used in place of those here illustrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Joining Of Corner Units Of Frames Or Wings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (6)

  1. Profil, das zum Biegen entlang zumindest einer quer verlaufenden Biegelinie seiner ebenen Grundseite (10) vorbereitet ist, dadurch gekennzeichnet, dass es an jeder Biegelinie mit einer V-Kerbe versehen ist, die sich über die gesamte Breite des Profils erstreckt und mit ihrer Spitze in der Grundseite (10) endet und darin eine im wesentlichen viereckige Nut (1) bildet, dadurch gekennzeichnet, dass die genannte Nut eine spitze Ecke (32) und eine gerundete Ecke (33) aufweist.
  2. Profil nach Anspruch 1, das vier V-Kerben aufweist, die mit der Grundseite (10) Winkel von 45° bilden und vier Biegelinien definieren, wobei die Nuten von zwei benachbarten Kerben ihre spitzen Ecken (32) auf einer Seite haben und die Nuten der anderen zwei benachbarten Kerben ihre spitzen Ecken (32) auf der anderen Seite haben.
  3. Profil nach Anspruch 1 oder Anspruch 2, das eine Struktur aufweist, die zumindest einen Längskanal (15) parallel zur Grundseite und zumindest eine Aussparung umfasst, die durch Entfernen eines Teils des Längskanals (15) gebildet wird, um einen Abschnitt des Längskanals (15) in der Nähe eines der beiden Enden des Profils zugänglich zu machen.
  4. Rahmen, der aus einem einzigen Profilabschnitt nach Anspruch 3 gebildet ist, welcher entlang von vier Biegelinien gebogen ist, wobei die zwei Enden des Profils mittels zumindest einer Schraube (51) stumpf aneinandergefügt sind, die durch den Kanalabschnitt hindurchführt und in den Kanal eingeschraubt wird, der zum anderen Ende des Profils hin geöffnet ist.
  5. Profil nach Anspruch 1 oder Anspruch 2, aufweisend vier Kerben, die mit der Grundseite (10) Winkel von 45° bilden und vier Biegelinien definieren, eine Struktur, die zumindest einen Längskanal (15) umfasst, der parallel zur Grundseite ist und zumindest eine Bohrung, die sich in einer Position nächst zumindest einer der Biegelinien im rechten Winkel so zu der Grundseite erstreckt, dass sie zu dem Längskanal (15) ausgerichtet wird, wenn das Profil entlang der jeweiligen Biegelinie gebogen wird.
  6. Rahmen, der aus einem einzigen Profilabschnitt nach Anspruch 5 gebildet ist, der entlang der vier Biegelinien gebogen ist und zumindest eine Schraube umfasst, die durch die Bohrung hindurchgeführt und in den Kanal, der zu der Bohrung ausgerichtet ist, eingeschraubt wird.
EP03425507A 2003-07-29 2003-07-29 Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist Expired - Lifetime EP1503027B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60313314T DE60313314D1 (de) 2003-07-29 2003-07-29 Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist
AT03425507T ATE360130T1 (de) 2003-07-29 2003-07-29 Zum biegen vorbereitetes profil und rahmen, der von einem einzigen solchen profilabschnitt hergestellt ist
EP03425507A EP1503027B1 (de) 2003-07-29 2003-07-29 Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03425507A EP1503027B1 (de) 2003-07-29 2003-07-29 Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist

Publications (2)

Publication Number Publication Date
EP1503027A1 EP1503027A1 (de) 2005-02-02
EP1503027B1 true EP1503027B1 (de) 2007-04-18

Family

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Application Number Title Priority Date Filing Date
EP03425507A Expired - Lifetime EP1503027B1 (de) 2003-07-29 2003-07-29 Zum Biegen vorbereitetes Profil und Rahmen, der von einem einzigen solchen Profilabschnitt hergestellt ist

Country Status (3)

Country Link
EP (1) EP1503027B1 (de)
AT (1) ATE360130T1 (de)
DE (1) DE60313314D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2358700B1 (es) * 2009-07-28 2012-02-08 Jesús Francisco Barberán Latorre Sistema para la fabricación de marcos o piezas revestidas sin uniones visibles.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR833438A (fr) * 1937-02-20 1938-10-21 Procédé de fabrication des cadres métalliques et similaires
FR2310814A1 (fr) * 1975-05-12 1976-12-10 Leroux Sa Ets Procede pour le cintrage de profiles epais, profile obtenu et son application a des encadrements de vitres et analogues
DE2614023A1 (de) * 1976-04-01 1977-10-06 Festo Maschf Stoll G Metallischer rahmen aus einem rohrprofil und verfahren zum biegen des rohrprofils
GB2237051A (en) * 1989-10-21 1991-04-24 Gary Daynes Square cornered spacer tube & method of making it

Also Published As

Publication number Publication date
EP1503027A1 (de) 2005-02-02
DE60313314D1 (de) 2007-05-31
ATE360130T1 (de) 2007-05-15

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