EP1019244A1 - Ame en nid d'abeilles - Google Patents

Ame en nid d'abeilles

Info

Publication number
EP1019244A1
EP1019244A1 EP98949241A EP98949241A EP1019244A1 EP 1019244 A1 EP1019244 A1 EP 1019244A1 EP 98949241 A EP98949241 A EP 98949241A EP 98949241 A EP98949241 A EP 98949241A EP 1019244 A1 EP1019244 A1 EP 1019244A1
Authority
EP
European Patent Office
Prior art keywords
sides
cells
strips
strip
package
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.)
Withdrawn
Application number
EP98949241A
Other languages
German (de)
English (en)
Inventor
Auke Johannes Nauta
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.)
Besin BV
Original Assignee
Besin 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 Besin BV filed Critical Besin BV
Publication of EP1019244A1 publication Critical patent/EP1019244A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D3/00—Making articles of cellular structure, e.g. insulating board
    • B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
    • B31D3/0223—Making honeycomb cores, e.g. by piling a plurality of web sections or sheets

Definitions

  • the invention relates to a honeycomb core and to panel- shaped assemblies in which such a core has been accommodated.
  • Such a honeycomb core usually is a structure built from a package of strips of cellulose material adhered to one another, each strip on the one side being adhered at locations to the adjacent strip on that side, which locations lie offset with regard to the locations where the strip concerned is adhered at the opposite side to the adjacent strip on that side, so that when pulling away the strips from each other to bring the strip package into an expanded state, portions of the adjacent strips form the sides of polygonal cells.
  • honeycomb cores are often used in a sandwich panel, in which on one side or on both sides of the core which has been brought in pulled-out or expanded state, a plate is attached, for instance by means of gluing.
  • the plates can - like the core - be of cellulose material, but it is also known to accommodate a cellulose core between two plasterboards . Such a panel is used in building industry.
  • plates of core material are provided with glue tracks or glue strips and after that are pressed onto each other, after which the stack of plates is cut into packages of strips, which are later pulled out to form a core.
  • the glue tracks or glue strips are arranged at mutually equal distances.
  • a result of this is that the pulled-out longitudinal edges of the core have a zigzag shape.
  • the side of the sandwich panel made with that core then offers a sloppy sight, which is disadvantageous for the saleability of those panels.
  • the zigzag shape there are open cells in the longitudinal edge area, because of which the filling or occupation of the panel with core material is not optimal in that area.
  • It is an object of the invention to improve on this and to that end provides the measure that the outermost first sides of the cells that are situated on the edges of the strip package which are enlarged during expansion, have a combined length which is shorter than the combined length of the opposite, second sides of those cells.
  • the first sides are at least almost in line with each other.
  • a means is provided which forms an upper limit for the extent in which the core may be pulled out .
  • the core can be connected to the plates of the sandwich panel, in which, because of its extended course, the longitudinal edge may come to lie close to the plate edges.
  • the cores known up until now, cannot be kept extended to such an extent , because the cells would then be deformed too much.
  • the invention provides a honeycomb structure built from a package of strips adhered to each other in particular made of cellulose material, wherein in the expanded state of the package of strips the cells which are situated on the expanded edges approximately form a polygon with an uneven number of sides, whereas the cells lying within there form a polygon with an even number of sides.
  • the invention further provides a method for gluing plates for forming honeycomb cores, the distance between the outer glue strips and the adjacent glue strips lying within there, being shorter than the distance between the other glue tracks .
  • Figure 1 shows a sandwich panel with a honeycomb core in a usual embodiment
  • Figure 2 shows a sandwich panel with honeycomb core according to the invention.
  • Figure 3 shows a partial cross-section of the sandwich panel of figure 2.
  • the sandwich panel 1 in figure 1 which is part of the state of the art, comprises a cover plate 2 made of plaster material and a cover plate 3 made of plaster material.
  • a honeycomb-shaped core 4 is accommodated, which is built from strips 5 of, for instance, cellulose material, such a cardboard.
  • the strips 5 are glued together at offset locations, so that after pulling out in the directions A the indicated honeycomb structure is realized.
  • the honeycomb cells 6 have a diameter Dl in the extended direction and in this case form hexagons, in which the sides 7, situated transverse to the extended- or longitudinal direction of the core, are attached to each other. This attaching to each other can take place by means of a glue layer or glue strip 10 extending over the entire side or a portion of it .
  • the cells 6 here all have almost the same shape and dimensions. This also goes for the cells on the left longitudinal edge as seen in the drawing.
  • the "first" sides 8 have the same dimensions as the "second" sides 9. In each cell the sides 8 are held together by projecting strip portions 7' which are adhered to each other.
  • the core 14 is built from strips 15 , which are adhered to each other with their sides 17. Because the distance between the two outer glue strips 20, when applying the glue, is smaller that the mutual distance of the other glue strips 20, the "first" sides 18 are smaller than the “second" sides 19 of the cells 16' .
  • the "first" sides 18 have a combined length which equals Dl .
  • the “first” sides 18 are held together by transversely projecting strip portions 17' that are adhered to each other.
  • the cells 16' are pentagonal and have a side which is directed in the extension directions A. When extending in the directions A these sides form an upper limit for the distance over which the core 4 can be pulled out in the directions A. In this way the core is dimensionally stable when a certain pulling force is maintained and the longitudinal edges will have a more extended course. In this way the longitudinal edge of the core can be laid more closely to the longitudinal edges of the plasterboards 12 and 13.

Landscapes

  • Laminated Bodies (AREA)

Abstract

L'invention porte sur une structure en nid d'abeilles (1) constitué de bandes d'un matériau cellulosique collés entre elles. Chacune des bandes adhère d'un côté en des points de la bande voisine situés de ce même côté, lesdits points se trouvant décalées par rapport aux points où la bande concernée adhère au côté opposé de la bande voisine de ce côté, si bien que lorsqu'on tire sur les bandes pour les séparer et amener le paquet de bandes à l'état expansé, certaine des parties des bandes voisines forment les côtés d'alvéoles polygonales dont les premiers côtés les plus extérieures (18), situés sur les bords des paquets de bandes agrandis pendant l'expansion, présentent une longueur combinée plus courte que la longueur combinée des seconds côtés opposés desdites alvéoles.
EP98949241A 1997-10-02 1998-10-01 Ame en nid d'abeilles Withdrawn EP1019244A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1007197 1997-10-02
NL1007197 1997-10-02
PCT/NL1998/000568 WO1999017922A1 (fr) 1997-10-02 1998-10-01 Ame en nid d'abeilles

Publications (1)

Publication Number Publication Date
EP1019244A1 true EP1019244A1 (fr) 2000-07-19

Family

ID=19765786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98949241A Withdrawn EP1019244A1 (fr) 1997-10-02 1998-10-01 Ame en nid d'abeilles

Country Status (3)

Country Link
EP (1) EP1019244A1 (fr)
AU (1) AU9559998A (fr)
WO (1) WO1999017922A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022102916A1 (de) 2022-02-08 2023-08-10 Technische Universität Dresden, Körperschaft des öffentlichen Rechts Zellstruktur, Verfahren zur Herstellung einer Zellstruktur und Zellstützkern

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086624A (en) * 1959-03-19 1963-04-23 Triar Inc Cellular core and process of making it
US3678558A (en) * 1970-06-24 1972-07-25 Corlite Corp Method of fabricating cellular structures
US3655478A (en) * 1970-08-10 1972-04-11 Robert C Geschwender Cellular structural products
US4516891A (en) * 1982-06-30 1985-05-14 Down River International, Inc. Suspended type cellular void filler
US4585381A (en) * 1983-10-06 1986-04-29 Down River International, Inc. Void filler
US4677012A (en) * 1985-11-07 1987-06-30 Hunter Douglas Inc. Honeycomb structure with band joined folded material and method of making same
US5525395A (en) * 1994-12-28 1996-06-11 Teh Yor Industrial Co., Ltd. Combination of dual cell honeycomb structures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9917922A1 *

Also Published As

Publication number Publication date
AU9559998A (en) 1999-04-27
WO1999017922A1 (fr) 1999-04-15

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