EP0316529B1 - Renforcement des côtés d'éléments plats de revêtement ou de séparation ainsi que procédé de fabrication - Google Patents

Renforcement des côtés d'éléments plats de revêtement ou de séparation ainsi que procédé de fabrication Download PDF

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Publication number
EP0316529B1
EP0316529B1 EP88114306A EP88114306A EP0316529B1 EP 0316529 B1 EP0316529 B1 EP 0316529B1 EP 88114306 A EP88114306 A EP 88114306A EP 88114306 A EP88114306 A EP 88114306A EP 0316529 B1 EP0316529 B1 EP 0316529B1
Authority
EP
European Patent Office
Prior art keywords
edge
covering
covering element
bending
edge strip
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
EP88114306A
Other languages
German (de)
English (en)
Other versions
EP0316529A2 (fr
EP0316529A3 (en
Inventor
Peter Pelz
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.)
Empe-Werke Ernst Pelz GmbH and Co KG
Original Assignee
Empe-Werke Ernst Pelz GmbH and Co KG
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 Empe-Werke Ernst Pelz GmbH and Co KG filed Critical Empe-Werke Ernst Pelz GmbH and Co KG
Publication of EP0316529A2 publication Critical patent/EP0316529A2/fr
Publication of EP0316529A3 publication Critical patent/EP0316529A3/de
Application granted granted Critical
Publication of EP0316529B1 publication Critical patent/EP0316529B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0016—Folding edges; Folding edges combined with joining; Reinforcing edges during the folding thereof, e.g. by introducing a thread; Folding the edges of a sheathing

Definitions

  • the invention relates to a method for producing a covering or separating element made of cardboard or the like. With the features of the preamble of claim 1 and a covering or separating element made of cardboard or the like. With the features of the preamble of claim 3.
  • cover elements of the type described above it is often necessary for easy hanging and reinforcing an edge area by gluing Strips of material etc. to achieve the required effect.
  • the attachment of such strips of material outside of the compression molding process normally used for the production of such cover elements is labor-intensive and expensive, and there is also the disadvantage that no attractive visible edges can be produced.
  • covering elements Furthermore, it has been found to be unfavorable in the previously known covering and / or separating elements, hereinafter generally referred to collectively as “covering elements”, that foreign materials such as metal rails or the like are generally used for stiffening thin laminates for reasons of weight. must be used, which not only causes weight problems again, but also warps of the overall structure when the cover elements are exposed to temperature. So far, it has only been possible with great difficulty to build such cover elements with low weight as torsionally stiff as this the dimensional accuracy because of z. B. is desirable in the automotive field itself.
  • the invention has for its object to provide a method for the simple manufacture of such a covering and separating element, and to further develop the previously known covering or separating element with respect to a simpler fastening.
  • the one-piece covering or separating element according to the invention can be used for flat, flat or shaped workpieces.
  • a narrow, preferably 20 mm wide edge strip is prepared to be bendable by embossing a crease.
  • sections are formed, of which the one sections, namely those forming the edge reinforcement sections, are alternately bent by 180 ° under the back of the cover element and glued to it, while the other sections, which are to form the hanging tabs, are preferably 135 ° are bent backwards so that they protrude from the rear of the surface and the protruding part can engage in hook-like manner in corresponding protruding parts of the counterparts attached to the surface to be clad.
  • edge strip of the cover element as a carrier of the two parts alternately molded onto the bent edge strips, namely hook-in tabs on the one hand and edge reinforcement sections on the other hand, are continuously and completely preserved as a whole remains, this construction gives the front edge adjacent to the fastening device or attachment fastening great rigidity and holding force because the attachment tabs are kept unchanged in shape by the completely bent over-reinforced edge reinforcement sections and thus additionally stiffen the front edge.
  • a particular advantage of the one-piece attachment fastening according to the invention is that clips and other fastening elements are saved and that the insertion and removal of the paneling takes place very quickly due to the omission of many individual operating elements. This is not only when installing new z. B. automotive headliner, but also for repair work of considerable advantage, if lines or controls are hidden behind the cladding, since considerable relief and savings in working time can be achieved by using the fastening device according to the invention.
  • the flat covering or separating elements according to the invention can be made of cardboard, foams, fiber mats, structures made of organic or inorganic fibers or also flat plastics or the like.
  • the visible surfaces are usually clad with decorative papers, decorative foils or textiles that have to be glued on.
  • the manufacture of a one-piece suspension fastening is composed of a number of individual operations, which, however, according to the invention are preferably combined in a single compression molding operation. In this compression molding process, using pressure and heat, molding, embossing the grooves for bending, gluing the parts bent over by 180 ° on the back and laminating the visible surface with the surface material are integrated.
  • the fastening device according to the invention is not only labor intensive in use, but also in the manufacture.
  • numerous individual fastening parts, such as clips and the like, and their attachment become superfluous, there is not only an easy-to-use component, but also an inexpensive component.
  • the covering or separating element according to the invention in which only the same materials are used, so no foreign materials, such as. B. metal strips must be applied, has the advantage that an excellent connection rigidity and dimensional accuracy can be guaranteed with low weight without warping due to different expansion coefficients of the different materials to be obtained under temperature stresses.
  • By laying the edge strips on top of each other and the material of the actual cover element along the bending line results in a "plywood-like" reinforcement of the edge area due to the laminate structure achieved in this way.
  • this laminate structure is further increased by the fact that when the edge strip is folded in the bending area, laminate compaction takes place, since tensile and compressive stresses occur not only in the plane of the flat material normal to the bending line, but also compressive forces acting perpendicular to the plane of the surface which further compress the individual layers of the laminate.
  • the edge strip is bent over, the tensile and compressive stresses which occur further parallelize the fibers, chain molecules, etc. in the various material layers parallel to the surface and normal to the bending line, which causes a special edge stiffening in the sense of "hardening" the edge area.
  • the tensile and compressive stresses generated in the material plane cause a special hardening of the corresponding edge, for example when tempering glass panes.
  • a flat cover element 1 made of a fiber mat construction or the like, has an edge strip 2 with a width of approximately 20 mm, a groove 4 being formed on the rear side 3 of the cover element 1, which is at the bottom in FIG. 1 which defines the aforementioned width of the edge strip 2 of approximately 20 mm.
  • the groove 4 is embossed into the rear side 3 of the cover element 1.
  • the individual parts of the edge strip 2, as will be explained in more detail below, can be bent to different degrees in the bending direction 5 indicated by an arrow.
  • edge strip 2 to 5 show that the edge strip 2 is divided into a plurality of individual sections by corresponding indentations, of which parts forming hook-in tabs 6 are bent by approximately 135 ° to the rear side 3 of the cover element 1, while the regions in between are used as edge reinforcement sections 7 bent 180 ° to the rear 3 of the cover element 1 and glued to it.
  • edge reinforcement sections 7 bent 180 ° to the rear 3 of the cover element 1 and glued to it.
  • a fastening device which consists of a multiplicity of hook-shaped hook-in tabs 6 bent by 135 ° against the rear, the edge regions lying between the hook-in tabs 6 by the rear side 3 of the cover element 1, glued on edge reinforcement sections 7, not visible from V, are glued to the rear side 3 to a high edge rigidity.
  • the edge reinforcement sections 7 are bent over by 180 ° and glued to the rear side 3 of the cover element 1, while alternating between these, visible, which are only bent by 135 °, serving as hooks and standing in the room hanging tabs 6.
  • the fastening device is produced in such a way that all the necessary molding and gluing processes are carried out in a single compression molding process using pressure and heat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Connection Of Plates (AREA)

Claims (9)

  1. Procédé de fabrication d'un élément de revêtement ou de séparation en carton, en nattes de fibres organiques et/ou minérales, en matières plastiques en feuilles et/ou en matériaux cellulaires ou analogues pour l'habillage intérieur de véhicules automobiles, une bande d'arête étant repliée à environ 180 °C le long d'une zone de bord périphérique et/ou partielle que l'on veut renforcer et étant collée à la partie principale de l'élément de recouvrement, caractérisé en ce que la bande d'arête est séparée de la partie principale de l'élément de recouvrement par une rainure en forme de charnière moulée ; et en ce que la réalisation de la rainure, le pliage éventuellement partiel de la bande d'arête, le collage éventuellement partiel de la bande d'arête et enfin la stratification de plusieurs couches et/ou l'application d'une feuille décorative sur le côté apparent opposé au dos de l'élément de recouvrement s'effectuent en une seule opération de moulage par compression avec mise en oeuvre de pression et de chaleur.
  2. Procédé selon la revendication 1, caractérisé en ce que, pour fabriquer un dispositif de fixation conçu sous la forme d'un dispositif d'accrochage et destiné à accrocher de manière amovible l'élément de recouvrement à un élément de base plan ou façonné dont on veut habiller la surface, on réalise, le long d'une zone de bord de l'élément de recouvrement, dans la bande d'arête, plusieurs pattes d'accrochage qui se trouvent à distance les unes des autres et qui sont obtenues en repliant des zones correspondantes de la bande d'arête de l'élément de recouvrement vers le dos, en direction de la pièce que l'on veut habiller, selon un angle d'environ 120 °C à 150 °C en les maintenant solidaires dudit élément de recouvrement, la réalisation des parties correspondantes dans la bande d'arête ainsi que le pliage des pattes d'accrochage et des parties de renfort de bord étant réalisés au cours d'une même opération de moulage par compression.
  3. Elément de revêtement ou de séparation en carton, en nattes de fibres organiques et/ou minérales, en matières plastiques en feuilles et/ou en matériaux cellulaires ou analogues pour l'habillage intérieur de véhicules automobiles, une bande d'arête (2) étant repliée à environ 180 °C le long d'une zone de bord périphérique et/ou partielle que l'on veut renforcer et étant collée à la partie principale de l'élément de recouvrement, ledit élément de recouvrement étant en particulier fabriqué selon le procédé des revendications 1 ou 2, caractérisé en ce que, pour réaliser un dispositif de fixation conçu sous la forme d'un dispositif d'accrochage et destiné à accrocher de manière amovible l'élément de recouvrement à un élément de base plan ou façonné dont on veut habiller la surface, il est prévu, le long d'une zone de bord de l'élément de recouvrement, plusieurs pattes d'accrochage (6) qui sont réalisées dans la bande d'arête (2), qui se trouvent à distance les unes des autres, qui sont obtenues en repliant des zones correspondantes de la bande d'arête (2) de l'élément de recouvrement vers le dos, en direction de la pièce que l'on veut habiller, selon un angle d'environ 120 °C à 150 °C en les maintenant solidaires dudit élément de recouvrement, et qui, en faisant saillie sur le dos (3) de l'élément de recouvrement, peuvent être accrochées à la manière de crochets derrière des pièces antagonistes correspondantes de la pièce que l'on veut habiller ; et en ce qu'il est prévu, entre les pattes d'accrochage voisines (6), des parties (7) qui servent à renforcer le bord et qui sont chacune réalisées d'une seule pièce sur l'élément de recouvrement en repliant à 180° la zone d'arête située entre les pattes d'accrochage voisines (6) et en la collant au dos de l'élément de recouvrement.
  4. Elément de revêtement ou de séparation selon la revendication 3, caractérisé en ce que la bande d'arête (2) est séparée de la partie principale de l'élément de recouvrement par une rainure (4) en forme de charnière moulée.
  5. Elément de revêtement ou de séparation selon la revendication 4, caractérisé en ce que la rainure (4) se trouve sur le côté intérieur du rabat.
  6. Elément de revêtement ou de séparation selon la revendication 4, caractérisé en ce que la rainure (4) se trouve sur le côté extérieur du rabat.
  7. Elément de revêtement ou de séparation selon l'une des revendications 3 à 6, caractérisé en ce que l'angle de pliage des pattes d'accrochage (6) est d'environ 135 °C.
  8. Elément de revêtement ou de séparation selon l'une des revendications 3 à 7, caractérisé en ce que les pattes d'accrochage (6) et les parties de renfort de bord (7) sont formées en repliant une partie correspondante de la bande d'arête (2) selon la ligne de pliage qui coïncide avec la rainure (4) parallèle au bord.
  9. Elément de revêtement ou de séparation selon l'une des revendications 3 à 8, caractérisé en ce que la largeur de la bande d'arête (2) est d'environ 20 mm.
EP88114306A 1987-11-13 1988-09-02 Renforcement des côtés d'éléments plats de revêtement ou de séparation ainsi que procédé de fabrication Expired - Lifetime EP0316529B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3738671 1987-11-13
DE3738671 1987-11-13
DE3802390 1988-01-27
DE3802390A DE3802390A1 (de) 1987-11-13 1988-01-27 Einhaengevorrichtung und randverstaerkung fuer flaechige abdeck- und/oder trennelemente sowie verfahren zu ihrer herstellung

Publications (3)

Publication Number Publication Date
EP0316529A2 EP0316529A2 (fr) 1989-05-24
EP0316529A3 EP0316529A3 (en) 1990-12-27
EP0316529B1 true EP0316529B1 (fr) 1994-07-27

Family

ID=25861802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114306A Expired - Lifetime EP0316529B1 (fr) 1987-11-13 1988-09-02 Renforcement des côtés d'éléments plats de revêtement ou de séparation ainsi que procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0316529B1 (fr)
DE (2) DE3802390A1 (fr)
ES (1) ES2061577T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130244854A1 (en) * 2008-07-21 2013-09-19 Paragon Films, Inc. Apparatus and Method for Folding Film Edges

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9503088L (sv) * 1995-09-08 1996-10-07 Sca Packaging Sweden Ab Vikt kartongelement utgörande hylla, bärandestöd eller dylikt i ett exponeringsställ eller liknande
DE102018213938A1 (de) * 2018-08-17 2020-02-20 Röchling Automotive SE & Co. KG Flächiges Kraftfahrzeug-Verkleidungsbauteil mit integriertem aufdoppelndem Verstärkungsabschnitt

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053144A (en) * 1935-10-22 1936-09-01 Archer Rubber Company Finish for rubber goods and method of making and applying the same
GB827087A (en) * 1957-02-05 1960-02-03 Bowater Res & Dev Co Ltd Helically wound tubes
DE1256527B (de) * 1964-04-30 1967-12-14 Robert Georges Eugene Durat Verfahren zum Herstellen einer Mantelnaht an einem Behaelter aus Pappe mit einer heissversiegelbaren Innenbeschichtung
DE2830320C3 (de) * 1978-07-10 1981-07-02 Ernst 8192 Geretsried Pelz Verfahren zum Herstellen von Formteilen aus Faservliesen
US4268555A (en) * 1979-12-26 1981-05-19 Union Carbide Corporation Wide-folding hinge
DE3012901A1 (de) * 1980-04-02 1982-01-28 Sanbloc Gmbh Installations-Fertigbau & Co Kg, 8120 Weilheim Verfahren und vorrichtung zur herstellung einer versiegelten brandschutzplatte
DE3029091C2 (de) * 1980-07-31 1984-09-27 Albert-Frankenthal Ag, 6710 Frankenthal Vorrichtung zum Längsrillen von Papierbahnen
GB2151523A (en) * 1983-12-16 1985-07-24 Loh Kg Rittal Werk Sheet metal articles
US4600621A (en) * 1984-12-28 1986-07-15 Monsanto Company Thermoformable polymeric foam headliners
DE3629222A1 (de) * 1986-08-28 1988-03-10 Pelz Ernst Erpe Vertrieb Verfahren zum herstellen eines verkleidungsteiles sowie danach hergestelltes verkleidungsteil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130244854A1 (en) * 2008-07-21 2013-09-19 Paragon Films, Inc. Apparatus and Method for Folding Film Edges

Also Published As

Publication number Publication date
DE3802390A1 (de) 1989-06-01
ES2061577T3 (es) 1994-12-16
DE3802390C2 (fr) 1992-02-13
EP0316529A2 (fr) 1989-05-24
DE3850854D1 (de) 1994-09-01
EP0316529A3 (en) 1990-12-27

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