DE3531371A1 - Rollable plastic plate - Google Patents
Rollable plastic plateInfo
- Publication number
- DE3531371A1 DE3531371A1 DE19853531371 DE3531371A DE3531371A1 DE 3531371 A1 DE3531371 A1 DE 3531371A1 DE 19853531371 DE19853531371 DE 19853531371 DE 3531371 A DE3531371 A DE 3531371A DE 3531371 A1 DE3531371 A1 DE 3531371A1
- Authority
- DE
- Germany
- Prior art keywords
- plate
- width
- plastic plate
- plane
- rollable
- 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- Withdrawn
Links
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/22—Corrugating
- B29C53/24—Corrugating of plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Gegenstand der vorliegenden Erfindung ist eine rollbare Platte aus einem thermoplastischen Kunststoff, die sich bei relativ niedrigem Gewicht, d. h. bei geringem Materialaufwand, durch hohe Eigensteifigkeit in der einen und überraschende Biegsamkeit in der anderen Ebene auszeichnet.The present invention relates to a rollable Plate made of a thermoplastic, the relatively light weight, d. H. at low Material expenditure, due to high inherent rigidity in the one and surprising flexibility in the other Level.
Es ist bekannt, durch Extrusion hergestellte Platten aus z. B. Acrylglas oder Polycarbonat, und zwar in aller Regel unmittelbar im Anschluß an den Extrusionsvorgang, zur Verbesserung der Steifigkeit in Extrusionsrichtung derart zu verformen, daß man die noch im thermoelastischen Zustand vorliegende Platte wellen- oder mäanderförmig ausgestaltet.It is known to make sheets made by extrusion e.g. As acrylic glass or polycarbonate, as a rule immediately after the extrusion process, to improve the rigidity in the extrusion direction to be deformed in such a way that it is still thermoelastic Condition of the present plate wavy or meandering designed.
Fig. 1 zeigt mit den tatsächlichen Abmessungen eine solche bekannte und auch im Handel befindliche Platte aus 3 mm dickem Acrylglas im Querschnitt. Diese Platte weist senkrecht zur zeichnerisch dargestellten Ebene, d. h. in Extrusionsrichtung, eine um ein vielfaches höhere Steifigkeit auf als eine gleich dicke, jedoch plane Platte. In der zweiten Ebene, also quer zur Extrusionsrichtung, ist die dargestellte Platte bis zu einem gewissen Grade biegsam, und zwar mit einem kleinsten Biegeradius von etwa 1 Meter. Fig. 1 shows the actual dimensions of such a known and also commercially available plate made of 3 mm thick acrylic glass in cross section. This plate has a much higher rigidity perpendicular to the plane shown in the drawing, ie in the direction of extrusion, than a plate of the same thickness but which is flat. On the second level, i.e. transversely to the direction of extrusion, the plate shown is flexible to a certain extent, with a minimum bending radius of approximately 1 meter.
Es wurde nun gefunden, daß bei Einhaltung einer bestimmten und in vergleichsweise engen Grenze variabler Geometrie eine mäanderförmig ausgestaltete Platte aus einem thermoplastischen Kunststoff bei gleicher Dicke eine ebenso hohe Eigensteifigkeit in der einen Ebene aufweist, wie eine bekannte Platte gemäß Fig. 1, daß sie sich aber andererseits durch eine überraschende Biegsamkeit quer zur Extrusionsrichtung auszeichnet. It has now been found that if a certain and within a comparatively narrow limit of variable geometry is maintained, a meandering plate made of a thermoplastic material with the same thickness has the same inherent rigidity in one plane as a known plate according to FIG. 1 that it is but on the other hand it is characterized by a surprising flexibility transverse to the direction of extrusion.
Die erfindungsgemäß einzuhaltende Geometrie der neuen Platte hängt von deren Dicke D ab. Fig. 2 zeigt, welche Abmessungen miteinander in einer zahlenmäßig eng begrenzten Korrelation stehen müssen, um der Platte die gewünschten Eigenschaften - hohe Steifigkeit einerseits und eine bislang nicht erzielbare Biegsamkeit andererseits - zu verleihen.The geometry of the new plate to be maintained according to the invention depends on its thickness D. Figure 2 shows the dimensions must communicate with each other in a numerically narrow correlation to the plate, the desired properties -. High stiffness on the one hand, and a previously achievable flexibility on the other hand - to impart.
Fig. 2 zeigt im Querschnitt eine erfindungsgemäße Platte mit einer Dicke von 3 mm, deren Abmessungen innerhalb der erfindungsgemäß einzuhaltenden Bereiche, bezogen auf die Dicke D, liegen. Als schutzbegründende Kennzeichnung gilt: Fig. 2 shows in cross section a plate of the invention having a thickness of 3 mm, the dimensions of which are within the ranges according to the invention to be observed, based on the thickness D. The following is the protective label:
Die Höhe H und die Breite B 1 müssen das 4-8fache von D und
die Breite B 2 muß das 2-6fache von D betragen, wobei B 1
immer größer als B 2 sein muß. Für eine 3 mm dicke Platte
ergeben sich danach folgende Abmessungsbereiche:
H = 12-24 mm; B 1 = 12-24 mm; B 2 = 6-18 mm.The height H and the width B 1 must be 4-8 times D and the width B 2 must be 2-6 times D , whereby B 1 must always be greater than B 2 . The following dimensional ranges result for a 3 mm thick plate:
H = 12-24 mm; B 1 = 12-24 mm; B 2 = 6-18 mm.
Eine solche Platte läßt sich, ohne daß der sogen. Proportionalbereich des Hooke'schen Gesetzes überschritten wird, d. h. ohne daß es zu einer Dauerverformung oder gar zum Bruch kommt, mit einem kleinsten Radius von unter 10 cm biegen, bzw. aufrollen.Such a plate can be without the so-called. Proportional range of Hooke's law is exceeded d. H. without permanent deformation or even Break comes with a minimum radius of less than 10 cm bend or roll up.
Die aufgezeigten, miteinander korrelierenden Abmessungen gelten für solche Platten aus einem thermoplastischen Kunststoff, deren Dicke zwischen 1,5 und 6 mm liegt.The shown, correlating dimensions apply to such sheets made of a thermoplastic Plastic, the thickness of which is between 1.5 and 6 mm.
Platten der beschriebenen Art können wie die bekannten Well- oder Mäanderplatten als Abschnitte gestapelt, aber darüber hinaus auch in theoretisch endloser Länge aufgerollt und in dieser Form raumsparend gelagert und transportiert werden.Plates of the type described can, like the known ones Corrugated or meandering panels stacked as sections, however also rolled up in theoretically endless lengths and stored and transported in this form to save space will.
Ihre Verwendungsmöglichkeiten sind mannigfaltig. Erwähnt sei beispielsweise die in einem Stück erfolgende Verkleidung eines dreiseitigen oder stark abgerundeten Balkongitters, die bei Verwendung der bisher gebräuchlichen, weitgehend starren Kunststoffplatten aus einzelnen Scheiben zusammengesetzt werden muß.Their uses are varied. Mentioned for example, the one-piece cladding a three-sided or very rounded balcony lattice, the when using the previously used, largely rigid plastic sheets made of individual Slices must be put together.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853531371 DE3531371A1 (en) | 1985-09-03 | 1985-09-03 | Rollable plastic plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853531371 DE3531371A1 (en) | 1985-09-03 | 1985-09-03 | Rollable plastic plate |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3531371A1 true DE3531371A1 (en) | 1987-03-12 |
Family
ID=6279988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853531371 Withdrawn DE3531371A1 (en) | 1985-09-03 | 1985-09-03 | Rollable plastic plate |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3531371A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4153663A (en) * | 1975-08-08 | 1979-05-08 | Rohm Gmbh | Methods for bending stretched synthetic resin sheets |
-
1985
- 1985-09-03 DE DE19853531371 patent/DE3531371A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4153663A (en) * | 1975-08-08 | 1979-05-08 | Rohm Gmbh | Methods for bending stretched synthetic resin sheets |
Non-Patent Citations (2)
Title |
---|
DE-Prospekt: Plastik-Profilplatten der Fa. Esch- weiler Bergwerksverein Beilage zur "Bauzeitung", H.8 v. August 1964 * |
DE-Z: plasticonstruction, 1971, H.1, S.44 u.49, (Beilage "Bauen mit Kunststoffen") * |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |