EP3574802A1 - Paroi pour un meuble ou partie de meuble - Google Patents

Paroi pour un meuble ou partie de meuble Download PDF

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Publication number
EP3574802A1
EP3574802A1 EP19173714.7A EP19173714A EP3574802A1 EP 3574802 A1 EP3574802 A1 EP 3574802A1 EP 19173714 A EP19173714 A EP 19173714A EP 3574802 A1 EP3574802 A1 EP 3574802A1
Authority
EP
European Patent Office
Prior art keywords
wall
edge
bead
furniture
bending
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
EP19173714.7A
Other languages
German (de)
English (en)
Other versions
EP3574802B1 (fr
Inventor
Günter GRABHER
Patrick PIRKER
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.)
Grass GmbH
Grass GmbH Deutschland
Original Assignee
Grass GmbH
Grass GmbH Deutschland
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 Grass GmbH, Grass GmbH Deutschland filed Critical Grass GmbH
Publication of EP3574802A1 publication Critical patent/EP3574802A1/fr
Application granted granted Critical
Publication of EP3574802B1 publication Critical patent/EP3574802B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/90Constructional details of drawers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/90Constructional details of drawers
    • A47B88/941Drawers being constructed from two or more parts
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00General construction of drawers, guides and guide devices
    • A47B2210/02Drawers with hollow lateral walls in two parts

Definitions

  • the invention relates to a wall, e.g. as a front wall, inner front wall, rear wall, side wall or screen, in particular for a discharge, such as e.g. a drawer or the like, consisting of metal, in particular of steel, as an L, U, C or hollow profile, with at least one edge whose outer radius is equal to or smaller than the material thickness of the profile.
  • a wall e.g. as a front wall, inner front wall, rear wall, side wall or screen
  • a discharge such as e.g. a drawer or the like, consisting of metal, in particular of steel, as an L, U, C or hollow profile, with at least one edge whose outer radius is equal to or smaller than the material thickness of the profile.
  • a drawer side wall is known, the steel sheet is bent accordingly and then welded to a metal support profile, so that the side wall has sufficient torsional rigidity.
  • the 10 2009 004 674 A1 relates to a device for bending a U or L sheet profile to an angular, in particular right-angled corner.
  • From the AT 402 593 B is a drawer steel sheet with several bars known.
  • the DE 39 34 419 A1 discloses a metal drawer side wall profile having a web wall forming the vertical side wall of the drawer.
  • a sidewall profile is made of at least two sub-profiles folded from sheet metal, of which one sub-profile comprises the upper part of the web wall and the upper strip-shaped leg section and the other sub-profile comprises the lower part of the web wall and the lower strip-shaped leg which holds the drawer bottom.
  • the sub-profiles are brought in a strip-shaped area in superimposition and interconnected.
  • the EP 0 692 208 A1 shows a drawer with metallic drawer frames whose vertical webs form the side boundary of the drawer at least in the area of the drawer bottom and the bottom have a horizontal support web on which rests a bottom plate, wherein from the drawer racks several tabs are punched out and bent, with their free ends with are provided with a hole and the tabs between their junction with the support web and the hole have a kink, and the lobes are stiffer at kink than at the junction with the support web.
  • the invention has for its object to provide a wall for a piece of furniture that has not been made by means of an extruded profile, but still has small radii, especially at the edges and corners.
  • a wall wherein the wall as a front wall, inner front wall, rear wall, side wall or panel, in particular for a Ausschub, such as. a drawer or the like, is formed and made of metal, in particular steel, and by forming an L, U, C or hollow profile having at least one edge whose outer radius is equal to or smaller than the material thickness of the profile, wherein the Forming of the profile by means of an embossing is carried out, and / or wherein the edge is punched on the inner surface or the edge on the inner surface a bead is embossed.
  • the metal is pressed into the area to be bent in a small radius, whereby the material is compacted in this area.
  • the wall thickness is reduced in this area, so that during subsequent or simultaneously bending smaller radii can be generated.
  • the metal is punched in the region of the edge to be provided on the inner surface or a bead is embossed. In this way, the edge or corner area is provided with the subsequent bending with a smaller radius as usual.
  • Another significant advantage of the invention in one embodiment is that the material is cold-compacted during bending.
  • the material has a higher strength in the bent region.
  • the pressing of the material before or during bending takes place at room temperature and leads to an additional material compaction in the area to be bent.
  • the bead is parallel to the edge, i.
  • the bead runs after bending directly opposite the edge.
  • the bead lies at a small distance laterally offset from the diagonal of the edge.
  • the radius in the direction of the one side surface may be made larger than the radius to the other side surface, so that the curvature of the edge changes from one to the other side surface of the wall.
  • the transition from one curvature to the other is advantageously continuous. In other words, the bend is offset from the bead.
  • the shape of the edge is varied by the distance between 10% and 90%, in particular between 25% and 75% of the wall thickness.
  • the curvature or the radius of the edge is influenced by the depth of the bead, which corresponds to 5% to 90%, in particular 20% to 80%, preferably 30% to 70% of the material thickness.
  • width of the bead corresponds to 2% to 20%, in particular 4% to 10%, preferably 6% to 8% of the material thickness.
  • more material can be re-pressed during forming, i. be pressed into a smaller radius of the die, since the wall thickness or material thickness is deformable.
  • the bead is a saw cut or an embossment, so that the amount of material is set exactly to the needs of the bend.
  • the invention also relates to a furniture or furniture part having a wall having one or more of the above features.
  • Such furniture can be produced inexpensively and replace the variants of aluminum.
  • the design of the furniture or furniture parts according to the invention are equal to those of aluminum, so that both embodiments can be used in combination.
  • the sizes of the radii of both steel and aluminum variants are the same and do not differ.
  • Excerpts, especially drawers or the like of furniture or pieces of furniture usually have a wall which is formed by a front wall, inner front wall, rear wall, side wall or panel.
  • a front wall 10 is shown, but should not limit the invention.
  • the front wall 10 is made of sheet steel and has an inner side 12, an outer side 14, an upper side 16 and a lower side 18, wherein the steel sheet is bent at the edges 20 such that the free, the underside 18 forming legs face each other, so that They can be welded, crimped, crimped, glued, screwed or riveted, for example.
  • the inside 12 and the bottom 18 have openings 22 for attachment of the front wall 10 or for the cultivation of fittings or other furniture parts.
  • FIG. 2 which has a cross section through the front wall 10 of the FIG. 1 shows, it can be seen that the formed steel sheet forms a hollow profile and the inner side 12 and outer side 14 and the upper side 16 and underside 18 each extend parallel to each other.
  • the shape of the illustrated formed sheet steel is exemplary and other shapes are possible.
  • the invention primarily relates to the design of at least one of the edges 20 or one of the in FIG. 1 shown corners 24.
  • FIG. 3 enlarged reproduced edge 20, via which the inner side 12 is connected to the top 16 or the top 16 to the outside 14, has an outer radius 26 and an inner radius 28, wherein primarily the outer radius 26 is visible to the user.
  • the outer radius 26 represents a design element of the wall and in particular of the furniture or the furniture part.
  • the edge 20 is produced by pressing in a correspondingly small outer radius 26 during bending. The material of the steel sheet is compressed and the desired profile is generated in the transformation area. The size of the outer radius 26 results in the embossing bending from the shape of the die, in which the steel sheet is pressed.
  • the shape of the inner radius 28 is determined by the stamp. In this way, ie during embossing, smaller radii can be made than simply bending. The smaller radii then correspond to the radii, as in profiles produced by extrusion aluminum.
  • FIG. 4 shows an alternative embodiment of the wall 10 of the invention, wherein the edge 20 was made on other or by additional measures.
  • the wall 10 is also made of a formed sheet steel and also has an inner side 12 and an outer side 14 and a top 16 and a bottom 18 and forms a hollow profile, of which only a part is shown.
  • the production of the edge 20 and in particular of the outer radius 26 will be described in the following FIGS. 5 and 6 explained in more detail.
  • FIG. 5 is the section V according to FIG. 4 shown, wherein in solid line, the outer radius 26 is shown according to the invention.
  • a dashed line shows an outer radius 30, as it arises by simply bending the steel sheet.
  • the inner surface 32 of the steel sheet is provided with a bead 34, over which the thickness D of the steel sheet is reduced.
  • the deeper the bead 34 penetrates into the steel sheet the smaller the outer radius 26 can be generated during the subsequent forming process.
  • the bead 34 sawed into the inner surface 32 of the steel sheet and thereby material is removed. In the area of a corner 24, material is punched out, thereby creating the possibility of producing a corner 24 with a smaller outer radius 26 during forming.
  • the bead 34 lies opposite the outer radius 26 and thus runs parallel to the edge 20.
  • the edge 20 has both in the direction of the outer surface 36 of the upper side 16 and in the direction of the outer surface 38 of the inner side 12, the same outer radius 26.
  • the edge 20 is thus mirror-symmetrical with respect to the diagonal 40th
  • FIG. 6 shows a variant of the second embodiment of an edge 20, in which the outer radius 26A in the direction of the outer surface 36 of the upper side 16 is smaller than the outer radius 26B in the direction of the outer surface 38 of the inner side 12.
  • the size of the outer radius 26A is about one-fifth the size of the outer radius 26B.
  • the outer surfaces 36 and 38 are continuous in the radii 26A and 26B.
  • the bead 34 is offset in this variant in the direction of outer radius 26A, i. it has a distance A to the bending center or diagonal 40 of the edge 20. This distance A also causes a displacement of the bead 34 to the center of the bending region, so that different outer radii 26 arise when the bending tool is offset with respect to the bead 34, i. the bead 34 is not centered in the tool.

Landscapes

  • Cabinets, Racks, Or The Like Of Rigid Construction (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP19173714.7A 2018-05-30 2019-05-10 Paroi pour un meuble ou partie de meuble Active EP3574802B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018103022.1U DE202018103022U1 (de) 2018-05-30 2018-05-30 Wand für ein Möbel oder Möbelteil

Publications (2)

Publication Number Publication Date
EP3574802A1 true EP3574802A1 (fr) 2019-12-04
EP3574802B1 EP3574802B1 (fr) 2023-09-06

Family

ID=66483873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19173714.7A Active EP3574802B1 (fr) 2018-05-30 2019-05-10 Paroi pour un meuble ou partie de meuble

Country Status (2)

Country Link
EP (1) EP3574802B1 (fr)
DE (1) DE202018103022U1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD86604A1 (fr) * 1970-11-17 1971-12-20
DE3934419A1 (de) 1989-10-14 1991-04-18 Lautenschlaeger Kg Karl Schubladen-seitenwandprofil aus metall
JPH06262267A (ja) * 1993-03-10 1994-09-20 Nisshin Steel Co Ltd 溝形鋼の折り曲げ方法
EP0692208A1 (fr) 1994-07-11 1996-01-17 Julius Blum Gesellschaft m.b.H. Tiroir
AT402593B (de) 1992-04-30 1997-06-25 Blum Gmbh Julius Schubladenzarge schubladenzarge
EP0826439A1 (fr) * 1996-09-02 1998-03-04 Rudolf Tschopp Procédé de pliage d'un tube, dispositif de mise en oeuvre du procédé ainsi que pièce de coin réalisée d'après le procédé
DE102009004674A1 (de) 2009-01-12 2010-07-15 Wuppermann Rohrtechnik Gmbh Vorrichtung und Verfahren zum Biegen eines Profils und gebogenes Profil
DE202014005638U1 (de) 2014-07-10 2015-10-13 Benno Sörries KG Biegen von Blechformteilen mit kleinem Außenradius
WO2017106890A1 (fr) 2015-12-22 2017-06-29 Julius Blum Gmbh Paroi latérale de tiroir

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1854462U (de) * 1961-10-05 1962-07-05 Johann Keil Inh R Dannenberg Gehaeuse, insbesondere fuer rundfunkgeraete.
DE9402770U1 (de) * 1994-02-19 1994-05-19 Grass AG, Höchst, Vorarlberg Schublade

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD86604A1 (fr) * 1970-11-17 1971-12-20
DE3934419A1 (de) 1989-10-14 1991-04-18 Lautenschlaeger Kg Karl Schubladen-seitenwandprofil aus metall
AT402593B (de) 1992-04-30 1997-06-25 Blum Gmbh Julius Schubladenzarge schubladenzarge
JPH06262267A (ja) * 1993-03-10 1994-09-20 Nisshin Steel Co Ltd 溝形鋼の折り曲げ方法
EP0692208A1 (fr) 1994-07-11 1996-01-17 Julius Blum Gesellschaft m.b.H. Tiroir
EP0826439A1 (fr) * 1996-09-02 1998-03-04 Rudolf Tschopp Procédé de pliage d'un tube, dispositif de mise en oeuvre du procédé ainsi que pièce de coin réalisée d'après le procédé
DE102009004674A1 (de) 2009-01-12 2010-07-15 Wuppermann Rohrtechnik Gmbh Vorrichtung und Verfahren zum Biegen eines Profils und gebogenes Profil
DE202014005638U1 (de) 2014-07-10 2015-10-13 Benno Sörries KG Biegen von Blechformteilen mit kleinem Außenradius
WO2017106890A1 (fr) 2015-12-22 2017-06-29 Julius Blum Gmbh Paroi latérale de tiroir

Also Published As

Publication number Publication date
EP3574802B1 (fr) 2023-09-06
DE202018103022U1 (de) 2019-09-02

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