EP1251216A2 - Three dimensionally rigidified flat element - Google Patents
Three dimensionally rigidified flat element Download PDFInfo
- Publication number
- EP1251216A2 EP1251216A2 EP02008451A EP02008451A EP1251216A2 EP 1251216 A2 EP1251216 A2 EP 1251216A2 EP 02008451 A EP02008451 A EP 02008451A EP 02008451 A EP02008451 A EP 02008451A EP 1251216 A2 EP1251216 A2 EP 1251216A2
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- EP
- European Patent Office
- Prior art keywords
- spatially
- molded component
- braced
- contact
- polygonal surfaces
- 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.)
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
- E04C2/326—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with corrugations, incisions or reliefs in more than one direction of the element
Definitions
- cavity structures have a high degree of rigidity with little Have weight.
- the adjacent cavities form a braced one Structure that supports and stiffens the whole body.
- foaming e.g. aluminum foam, polystyrene, .
- the German patent application DE 101 01 059 A1 discloses a plate with regular Projections and a method and an apparatus for their formation.
- the one described Plate is used in particular as a separator for a fuel cell.
- Two such Plates are placed between two cell units.
- the trained on both plates Projections abut each other in such a way that there is a flow-through cavity between the plates is trained.
- the function of the plates is defined on the one hand by the production of a Distance, on the other hand characterized by the provision of this cavity.
- a connection of the plates, which could cause a supporting and stiffening bracing, is not described.
- the invention has for its object another method of manufacture and construction Design of similar cavity structures made of metal, plastic or paper ready for put.
- up and down humps becomes a flat braced Shaped component generated, the polygonal surfaces lying parallel to each other on at least three levels having.
- the polygonal areas on the outer levels form the high and low areas the cusps trained up and down. Between these humps on the further polygonal surfaces are arranged in the middle level.
- the corresponding surfaces become another attached molded component on the associated surfaces of the underlying molded component set.
- the bumps of a molded component join the bumps of a molded component with the humps of another superimposed interlocking manufactured in the same way Molded component either on the side surfaces of the humps and / or on the corresponding Polygonal surfaces form-fit to one another.
- Molded component either on the side surfaces of the humps and / or on the corresponding Polygonal surfaces form-fit to one another. Will these contact surfaces for connecting of the molded components, a rigid overall construction is created.
- the polygons consist of 6 corners and both the polygons as also corresponding side surfaces of the humps of molded components placed one inside the other abutting each other, a closed cube-like cavity structure is created, the Do not communicate single cavities.
- Each molded component is half of the cube-like cavities ready by the next molded component with the second half are provided and thus form closed cavities.
- the hexagonal to triangular polygonal surfaces can also be used with each other communicating cavities are created where the corresponding side surfaces the hump of two molded components are in contact and the polygonal surfaces are at a distance thus creating a passage between the cavities.
- a spatial is created always the same cavity structure made up of nothing but cube-like or cuboid shapes, that share side walls with each other and are each offset by one level.
- the one with more Molded side surfaces and polygonal surfaces form flat contact surfaces the interlocking molded components.
- the corresponding ones Side faces of the hexagon bumps (cube-like half-bodies) of several interlocking Set molded components form struts of a double that run diagonally in 3 spatial directions Y-shape, which have a high buckling stiffness and are characterized by the entire composite Continue body.
- cover plates that cover the outside Polygonal surfaces are connected, there is a crisscrossed and fanned out
- the core of a sandwich that allows optimal thrust transmission.
- the result is a tube-like one Cavity structure that is composed along and / or across the entire compound Molded component extends.
- This structure can e.g. be used as a heat exchanger can flow through different media separately through a molded component.
- the high and deep polygons with the same offset to the middle level.
- Constructions are also feasible in which the high and low areas differ Distance from the middle level.
- the cusp side surfaces and / or the polygonal surfaces Further molded components are then produced in the same way with the corresponding one Counter mold component in contact when the other mold components are rotated by 180 degrees and can be used interlocking.
- spatially braced flat shaped components can be produced, their polygonal surfaces are arranged on more than 3 levels.
- the middle level and the Polygonal surfaces arranged on the upper level in turn with one another again and again regularity evenly offset (now a total of 7 levels) is the accuracy of fit interlocking molded component further guaranteed.
- the polygon areas are on at least three levels and the cusps are the same regular recurring shape, so that more interlocking Molded components used on the corresponding side surfaces and / or the polygonal surfaces lie flat in contact with each other.
- Deep-drawn sheet metal is used as the material for the spatially braced flat molded component
- Metal, deep-drawn plastic, cellulose and fiber-reinforced materials (laminates and Injection molding material) can be used.
- the molded components can be manufactured using dies, between which the sheets or plastics are deep-drawn, the laminates inserted or that Injection molding material introduced and can harden.
- Made of GRP [glass fiber reinforced plastic] and CFRP [carbon fiber reinforced plastic] manufactured molded parts also offer the possibility of additionally reinforcing highly stressed zones with inserted rovings.
- connection of several molded parts happens, depending on the application and requirement profile, through gluing, soldering, welding and various riveting techniques.
- the areas of application extend to a wide area where lightweight construction and high rigidity are required.
- a large area of application is also seen in the packaging industry, because the goods to be packaged are protected from slipping on all sides by walls can.
- the variant with the closed cube-like cavities can e.g. as a crash element be used.
- the energy introduced is then partially deformed of the cube structures, but also partly implemented in the resilient air cushion.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
Abstract
Description
Es ist aus der Natur bekannt, dass Hohlraumstrukturen ein hohes Maß an Steifigkeit bei geringem Gewicht aufweisen. Die aneinander angrenzenden Hohlräume bilden dabei eine verstrebte Struktur, die den ganzen Körper stützen und versteifen. Derartige Strukturen werden fabrikationstechnisch bisher durch Aufschäumen (z.B. Aluminium-Schaum, Styropor,...) erzeugt.It is known from nature that cavity structures have a high degree of rigidity with little Have weight. The adjacent cavities form a braced one Structure that supports and stiffens the whole body. Such structures will Previously produced by foaming (e.g. aluminum foam, polystyrene, ...).
Die deutsche Offenlegungsschrift DE 101 01 059 A1 offenbart eine Platte mit regelmäßigen Vorsprüngen sowie ein Verfahren und eine Vorrichtung für deren Ausbildung. Die beschriebene Platte findet insbesondere Verwendung als Separator für eine Brennstoffzelle. Zwei solcher Platten werden zwischen zwei Zelleneinheiten angeordnet. Die an beiden Platten ausgebildeten Vorsprünge stoßen so aneinander, dass zwischen den Platten ein durchströmbarer Hohlraum ausgebildet ist. Die Funktion der Platten ist einerseits durch die Herstellung eines definierten Abstandes, andererseits durch die Bereitstellung dieses Hohlraumes gekennzeichnet. Eine Verbindung der Platten, die eine stützende und versteifende Verstrebung bewirken könnte, ist nicht beschrieben.The German patent application DE 101 01 059 A1 discloses a plate with regular Projections and a method and an apparatus for their formation. The one described Plate is used in particular as a separator for a fuel cell. Two such Plates are placed between two cell units. The trained on both plates Projections abut each other in such a way that there is a flow-through cavity between the plates is trained. The function of the plates is defined on the one hand by the production of a Distance, on the other hand characterized by the provision of this cavity. A connection of the plates, which could cause a supporting and stiffening bracing, is not described.
Der Erfindung liegt die Aufgabe zugrunde, eine andere Methode zur Herstellung und konstruktiven Gestaltung ähnlicher Hohlraumstrukturen aus Metall, Kunststoff oder Papier bereit zu stellen.The invention has for its object another method of manufacture and construction Design of similar cavity structures made of metal, plastic or paper ready for put.
Diese Aufgabe wird durch die im Patentanspruch 1 angegebenen Merkmale erfüllt.This object is achieved by the features specified in
Wechselseitig durch nach oben und unten ausgebildete Höcker wird ein flächig verstrebtes Formbauteil erzeugt, das mindestens auf drei Ebenen parallel zueinander liegende Vieleckflächen aufweist. Die Vieleckflächen auf den außen liegenden Ebenen bilden die Hoch- und Tiefflächen der nach oben und unten ausgebildeten Höcker. Zwischen diesen Höckern auf der mittleren Ebene sind weitere Vieleckflächen angeordnet.Alternately through up and down humps becomes a flat braced Shaped component generated, the polygonal surfaces lying parallel to each other on at least three levels having. The polygonal areas on the outer levels form the high and low areas the cusps trained up and down. Between these humps on the further polygonal surfaces are arranged in the middle level.
Die Form und Größe dieser mindestens auf 3 Ebenen liegenden Vieleckflächen wird nun derart festgelegt, dass gleichartig hergestellte räumlich verstrebte flächige Formbauteile formschlüssig verzahnend ineinander passen. Dies wird im folgenden für genau auf 3 Ebenen liegende Vieleckflächen beschrieben: The shape and size of these polygon areas, which are at least on 3 levels, now becomes this way stipulated that spatially braced flat molded components manufactured in the same way are form-fitting interlocking. This is described below for exactly 3 levels Polygon areas described:
Zum Aufbau einer Hohlraumstruktur werden die korrespondierenden Flächen eines weiteren aufgesetzten Formbauteils auf die zugehörigen Flächen des darunter liegenden Formbauteils gesetzt. Durch die gleiche regelmäßige immer wiederkehrende Form der nach unten bzw. oben ausgebildeten Höcker eines Formbauteils fügen sich die Höcker des einen Formbauteils mit den Höckern eines weiteren aufgelegten miteinander verzahnenden gleichartig hergestellten Formbauteils entweder an den Seitenflächen der Höcker und/oder an den korrespondierenden Vieleckflächen formschlüssig aneinander an. Werden diese Kontaktflächen zum Verbinden der Formbauteile verwendet, entsteht eine steife Gesamtkonstruktion.To build up a cavity structure, the corresponding surfaces become another attached molded component on the associated surfaces of the underlying molded component set. By the same regular recurring form of the down or up trained bumps of a molded component join the bumps of a molded component with the humps of another superimposed interlocking manufactured in the same way Molded component either on the side surfaces of the humps and / or on the corresponding Polygonal surfaces form-fit to one another. Will these contact surfaces for connecting of the molded components, a rigid overall construction is created.
Für den Fall, dass die Vieleckflächen aus 6-Ecken bestehen und sowohl die Vieleckflächen als auch korrespondierende Seitenflächen der Höcker von ineinander gesetzten Formbauteilen aneinander anliegen, wird eine geschlossene würfelartige Hohlraumstruktur erzeugt, deren Einzelhohlräume nicht miteinander kommunizieren. Jedes Formbauteil stellt dabei je die Hälfte der würfelartigen Hohlräume bereit, die durch das nächste aufgesetzte Formbauteil mit der zweiten Hälfte versehen werden und damit abgeschlossene Hohlräume bilden. Je nach Wahl der 6-eckigen bis hin im Grenzfall zu 3-eckigen Vieleckflächen können auch untereinander kommunizierende Hohlräume geschaffen werden, wo die korrespondierenden Seitenflächen der Höcker zweier Formbauteile im Kontakt liegen und die Vieleckflächen auf Abstand stehen und so ein Durchgang zwischen den Hohlräumen geschaffen wird. Es entsteht eine räumliche immer gleichartige Hohlraumstruktur aus lauter würfelartigen oder quaderförmigen Formen, die sich untereinander Seitenwände teilen und je um eine Ebene versetzt sind. Die mit weiteren Formbauteilen korrespondierenden Seitenflächen und Vieleckflächen bilden ebene Kontaktflächen der ineinander verzahnend eingesetzten Formbauteile. Die korrespondierenden Seitenflächen der Sechseckhöcker (würfelartiger Halbkörper) mehrerer verzahnend ineinander gesetzter Formbauteile bilden schräg in 3 Raumrichtungen verlaufende Streben einer doppelten Y-Form, die eine hohe Knicksteifigkeit aufweisen und sich durch den gesamten zusammengesetzten Körper fortsetzen. In Kombination mit Deckplatten, die über die außenliegenden Vieleckflächen angebunden sind, ergibt sich ein kreuz und quer verstrebter und ausgefachter Kern eines Sandwichs, der eine optimale Schubübertragung erlaubt. Auch sind speziell hergestellte und die gleiche einseitige Formschlüssigkeit erfüllende Abschlussformbauteile herstellbar, die den Deckplatten eine durchlaufende ebene Gurtstruktur bereitstellen und sie damit kontinuierlich rasterförmig unterstützen, die Beul- und Knickgefahr der Deckplatten wirkungsvoll herabsetzen, sowie eine vergrößerte Fügefläche bereitstellen. In the event that the polygons consist of 6 corners and both the polygons as also corresponding side surfaces of the humps of molded components placed one inside the other abutting each other, a closed cube-like cavity structure is created, the Do not communicate single cavities. Each molded component is half of the cube-like cavities ready by the next molded component with the second half are provided and thus form closed cavities. Depending on your choice The hexagonal to triangular polygonal surfaces can also be used with each other communicating cavities are created where the corresponding side surfaces the hump of two molded components are in contact and the polygonal surfaces are at a distance thus creating a passage between the cavities. A spatial is created always the same cavity structure made up of nothing but cube-like or cuboid shapes, that share side walls with each other and are each offset by one level. The one with more Molded side surfaces and polygonal surfaces form flat contact surfaces the interlocking molded components. The corresponding ones Side faces of the hexagon bumps (cube-like half-bodies) of several interlocking Set molded components form struts of a double that run diagonally in 3 spatial directions Y-shape, which have a high buckling stiffness and are characterized by the entire composite Continue body. In combination with cover plates that cover the outside Polygonal surfaces are connected, there is a crisscrossed and fanned out The core of a sandwich that allows optimal thrust transmission. Are also special manufactured and fulfilling the same one-sided form-fitting components producible that provide the cover plates with a continuous flat belt structure and them thus continuously supporting the risk of buckling and buckling of the cover plates reduce effectively and provide an enlarged joint area.
Für den Fall das die Vieleckflächen aus 4- oder 8-Ecken bestehen, ergibt sich eine röhrenartige Hohlraumstruktur, die sich längs und/oder quer über das gesamte zusammengesetzte Formbauteil erstreckt. Diese Struktur kann z.B. als Wärmetauscher verwendet werden, den verschiedene Medien jeweils durch ein Formbauteil getrennt durchströmen können.In the event that the polygonal surfaces consist of 4 or 8 corners, the result is a tube-like one Cavity structure that is composed along and / or across the entire compound Molded component extends. This structure can e.g. be used as a heat exchanger can flow through different media separately through a molded component.
In der bevorzugten Bauart des räumlich verstrebten flächigen Formbauteils sind die hoch- und tiefliegenden Vieleckflächen mit gleichem Versatz zur mittleren Ebene ausgeführt.In the preferred design of the spatially braced flat molded component, the high and deep polygons with the same offset to the middle level.
Es sind auch Konstruktionen machbar, bei denen die Hoch- und Tiefflächen einen unterschiedlichen Abstand zur mittleren Ebene aufweisen. Die Höckerseitenflächen und/oder die Vieleckflächen weiterer Formbauteile liegen dann mit dem korrespondierenden gleichartig hergestellten Gegenformbauteil im Kontakt, wenn die weiteren Formbauteile je um 180 Grad gedreht und ineinander verzahnend eingesetzt werden.Constructions are also feasible in which the high and low areas differ Distance from the middle level. The cusp side surfaces and / or the polygonal surfaces Further molded components are then produced in the same way with the corresponding one Counter mold component in contact when the other mold components are rotated by 180 degrees and can be used interlocking.
Die Passgenauigkeit der in Kontakt liegenden korrespondierenden Seitenflächen und/oder Vieleckflächen mehrerer gleichartig hergestellter Formbauteile kann ebenfalls gewährleistet werden, wenn die Vieleckflächen durch Fasen oder Rundungen modifiziert werden oder wenn die in ihrer jeweiligen Ebene liegenden Vieleckflächen gleich verschoben werden, woraus dann z.B. verzerrte würfelartige oder längliche quaderförmige Hohlraumstrukturen entstehen.The accuracy of fit of the corresponding side surfaces in contact and / or Polygonal surfaces of several molded parts manufactured in the same way can also be guaranteed if the polygonal surfaces are modified by chamfering or rounding or if the polygonal surfaces lying in their respective planes are shifted from whence then e.g. distorted cube-like or elongated cuboid cavity structures arise.
Weiterhin sind auch räumlich verstrebte flächige Formbauteile herstellbar, deren Vieleckflächen auf mehr als 3 Ebenen angeordnet sind. Werden z.B. die auf der mittleren Ebene und der oberen Ebene angeordneten Vieleckflächen wiederum untereinander mit einer immer wieder kehrender Regelmäßigkeit gleichmäßig versetzt (insgesamt jetzt 7 Ebenen), ist die Passgenauigkeit ineinander verzahnend eingesetzter Formbauteil weiter gewährleistet.Furthermore, spatially braced flat shaped components can be produced, their polygonal surfaces are arranged on more than 3 levels. E.g. the middle level and the Polygonal surfaces arranged on the upper level in turn with one another again and again regularity evenly offset (now a total of 7 levels) is the accuracy of fit interlocking molded component further guaranteed.
Entscheidend für die Konstruktion eines räumlich verstrebten flächigen Formbauteils ist, dass sich die Vieleckflächen auf mindestens drei Ebenen befinden und die Höcker eine gleiche regelmäßige immer wiederkehrende Form aufweisen, so dass weitere ineinander verzahnend eingesetzte Formbauteile an den korrespondierenden Seitenflächen und/oder den Vieleckflächen miteinander flächig im Kontakt anliegen.It is crucial for the construction of a spatially braced flat molded component that the polygon areas are on at least three levels and the cusps are the same regular recurring shape, so that more interlocking Molded components used on the corresponding side surfaces and / or the polygonal surfaces lie flat in contact with each other.
Als Materialien für das räumlich verstrebte flächige Formbauteil sind tiefgezogene Bleche aus Metall, tiefgezogener Kunststoff, Zellstoffe sowie faserverstärkte Materialien (Laminate sowie Spritzgussmaterial) einsetzbar. Die Herstellung der Formbauteile kann über Matrizen erfolgen, zwischen denen die Bleche oder die Kunststoffe tiefgezogen, die Laminate eingelegt oder das Spritzgußmaterial eingebracht und aushärten kann. Aus GFK [glasfaserverstärktem Kunststoff] und CFK [kohlefaserverstärktem Kunststoff] hergestellte Formbauteile bieten darüber hinaus die Möglichkeit, hochbeanspruchte Zonen zusätzlich mit eingelegten Rovings zu verstärken.Deep-drawn sheet metal is used as the material for the spatially braced flat molded component Metal, deep-drawn plastic, cellulose and fiber-reinforced materials (laminates and Injection molding material) can be used. The molded components can be manufactured using dies, between which the sheets or plastics are deep-drawn, the laminates inserted or that Injection molding material introduced and can harden. Made of GRP [glass fiber reinforced plastic] and CFRP [carbon fiber reinforced plastic] manufactured molded parts also offer the possibility of additionally reinforcing highly stressed zones with inserted rovings.
Die Verbindung mehrere Formbauteile geschieht, je nach Einsatzzweck und Anforderungsprofil, durch Kleben, Löten, Schweißen und verschiedenste Niet-Techniken.The connection of several molded parts happens, depending on the application and requirement profile, through gluing, soldering, welding and various riveting techniques.
Die Einsatzgebiete erstrecken sich auf ein weites Gebiet, wo Leichtbau und hohe Steifigkeit gefordert sind. Auch in der Verpackungsindustrie wird ein großer Einsatzbereich gesehen, da das zu verpackende Gut allseitig durch Wandungen gegen Verrutschen geschützt werden kann. Die Variante mit den geschlossenen würfelartigen Hohlräumen, kann z.B. als Crash-Element eingesetzt werden. Die eingebrachte Energie wird dann teilweise in die Verformung der Würfelstrukturen, teils aber auch in die federnde Luftpolsterung umgesetzt.The areas of application extend to a wide area where lightweight construction and high rigidity are required. A large area of application is also seen in the packaging industry, because the goods to be packaged are protected from slipping on all sides by walls can. The variant with the closed cube-like cavities can e.g. as a crash element be used. The energy introduced is then partially deformed of the cube structures, but also partly implemented in the resilient air cushion.
Die vorliegende Erfindung wird nachstehend anhand bevorzugter Ausführungsformen und mit
Bezug auf die Zeichnungsfiguren näher erläutert, die folgendes zeigen:
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001119610 DE10119610C1 (en) | 2001-04-21 | 2001-04-21 | Spatially braced flat molded component |
DE10119610 | 2001-04-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1251216A2 true EP1251216A2 (en) | 2002-10-23 |
EP1251216A3 EP1251216A3 (en) | 2003-09-17 |
Family
ID=7682235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02008451A Withdrawn EP1251216A3 (en) | 2001-04-21 | 2002-04-12 | Three dimensionally rigidified flat element |
Country Status (2)
Country | Link |
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EP (1) | EP1251216A3 (en) |
DE (1) | DE10119610C1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100738501B1 (en) | 2006-06-14 | 2007-07-12 | 한국과학기술원 | Deformable sandwich panel having sheared inner structure and manufacturing method thereof |
EP2500118A4 (en) * | 2009-11-13 | 2015-06-24 | Sumitomo Light Metal Ind | Plate material having concave/convex sections, and laminate structure and vehicle panel using said plate material |
US11365542B2 (en) * | 2018-01-10 | 2022-06-21 | Shuert Technology, Llc | Plastic core structure manufactured through twin sheet technology |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006031696B4 (en) * | 2006-07-08 | 2008-04-30 | Bohmann, Dirk, Dr.-Ing. | Spacers in bump plates for setting the adhesive thickness |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10101059A1 (en) | 2000-01-14 | 2001-09-13 | Toyota Motor Co Ltd | Plate with regular protrusions and method and device for their formation |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB956132A (en) * | 1959-04-14 | 1964-04-22 | George Mountford Adie | Improvements in and relating to laminated slabs or panels |
CA2144295C (en) * | 1995-03-09 | 2005-05-24 | Germain Belanger | Core-board |
DE29603656U1 (en) * | 1996-02-28 | 1996-04-11 | Moser, Josef, 85435 Erding | Surface profile of a plate |
US5894045A (en) * | 1996-11-12 | 1999-04-13 | Desrondiers; Bernard R. | Cellular core structure building component |
DE19944662C5 (en) * | 1999-09-17 | 2009-02-26 | Bohmann, Dirk, Dr.-Ing. | Spatial structural design made of sheet-like shaped components |
DE20001729U1 (en) * | 2000-02-01 | 2001-06-21 | R & S Technik Gmbh | Plate-shaped element and device for its production |
-
2001
- 2001-04-21 DE DE2001119610 patent/DE10119610C1/en not_active Expired - Lifetime
-
2002
- 2002-04-12 EP EP02008451A patent/EP1251216A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10101059A1 (en) | 2000-01-14 | 2001-09-13 | Toyota Motor Co Ltd | Plate with regular protrusions and method and device for their formation |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100738501B1 (en) | 2006-06-14 | 2007-07-12 | 한국과학기술원 | Deformable sandwich panel having sheared inner structure and manufacturing method thereof |
EP2500118A4 (en) * | 2009-11-13 | 2015-06-24 | Sumitomo Light Metal Ind | Plate material having concave/convex sections, and laminate structure and vehicle panel using said plate material |
US9108239B2 (en) | 2009-11-13 | 2015-08-18 | Sumitomo Light Metal Industries, Ltd. | Sheet material having concave-convex section, and laminated structure and vehicle panel using the same |
US11365542B2 (en) * | 2018-01-10 | 2022-06-21 | Shuert Technology, Llc | Plastic core structure manufactured through twin sheet technology |
Also Published As
Publication number | Publication date |
---|---|
DE10119610C1 (en) | 2002-12-19 |
EP1251216A3 (en) | 2003-09-17 |
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