WO1999017922A1 - Honeycomb core - Google Patents
Honeycomb core Download PDFInfo
- Publication number
- WO1999017922A1 WO1999017922A1 PCT/NL1998/000568 NL9800568W WO9917922A1 WO 1999017922 A1 WO1999017922 A1 WO 1999017922A1 NL 9800568 W NL9800568 W NL 9800568W WO 9917922 A1 WO9917922 A1 WO 9917922A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sides
- cells
- strips
- strip
- package
- Prior art date
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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98949241A EP1019244A1 (en) | 1997-10-02 | 1998-10-01 | Honeycomb core |
AU95599/98A AU9559998A (en) | 1997-10-02 | 1998-10-01 | Honeycomb core |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1007197 | 1997-10-02 | ||
NL1007197 | 1997-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999017922A1 true WO1999017922A1 (en) | 1999-04-15 |
Family
ID=19765786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1998/000568 WO1999017922A1 (en) | 1997-10-02 | 1998-10-01 | Honeycomb core |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1019244A1 (en) |
AU (1) | AU9559998A (en) |
WO (1) | WO1999017922A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022102916A1 (en) | 2022-02-08 | 2023-08-10 | Technische Universität Dresden, Körperschaft des öffentlichen Rechts | Cell structure, method of making a cell structure and cell support core |
Citations (7)
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 |
US3655478A (en) * | 1970-08-10 | 1972-04-11 | Robert C Geschwender | Cellular structural products |
US3678558A (en) * | 1970-06-24 | 1972-07-25 | Corlite Corp | Method of fabricating cellular structures |
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 |
-
1998
- 1998-10-01 EP EP98949241A patent/EP1019244A1/en not_active Withdrawn
- 1998-10-01 WO PCT/NL1998/000568 patent/WO1999017922A1/en not_active Application Discontinuation
- 1998-10-01 AU AU95599/98A patent/AU9559998A/en not_active Abandoned
Patent Citations (7)
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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022102916A1 (en) | 2022-02-08 | 2023-08-10 | Technische Universität Dresden, Körperschaft des öffentlichen Rechts | Cell structure, method of making a cell structure and cell support core |
WO2023151755A1 (en) | 2022-02-08 | 2023-08-17 | Technische Universität Dresden Körperschaft Des Öffentlichen Rechts | Cell structure, method for producing a cell structure, and cell support core |
Also Published As
Publication number | Publication date |
---|---|
AU9559998A (en) | 1999-04-27 |
EP1019244A1 (en) | 2000-07-19 |
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