EP0797486B1 - Gitter, insbesondere flächiges gitter (gittermatte) - Google Patents
Gitter, insbesondere flächiges gitter (gittermatte) Download PDFInfo
- Publication number
- EP0797486B1 EP0797486B1 EP95940146A EP95940146A EP0797486B1 EP 0797486 B1 EP0797486 B1 EP 0797486B1 EP 95940146 A EP95940146 A EP 95940146A EP 95940146 A EP95940146 A EP 95940146A EP 0797486 B1 EP0797486 B1 EP 0797486B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lattice
- grid
- webs
- joints
- plane
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/005—Wire network per se
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
Definitions
- the invention relates to a grid, in particular a flat one Grid (grid mat), made of metal (like expanded metal) paper, Cardboard or plastic, with lattice knots, one of which is jet-shaped Lattice webs run to neighboring lattice nodes (see e.g. US-A-2 125 583).
- a grid in particular a flat one Grid (grid mat), made of metal (like expanded metal) paper, Cardboard or plastic, with lattice knots, one of which is jet-shaped Lattice webs run to neighboring lattice nodes (see e.g. US-A-2 125 583).
- Expanded metal with meshes is known, which e.g. are diamond-shaped or square-shaped. Based on these Geometry is inevitably longitudinal expansion and transverse contraction coupled. This known property results in a relative one low formability of expanded metal on spatially strong curved surfaces. This restriction is due to denominations or folding or cutting and material doubling overcome with difficulty.
- the invention has for its object to provide a grid the most diverse geometrical, in particular also curved structures is adaptable. This is said to be advantageous creating grids due to its geometry an essential have improved formability to any room shape and are suitable for a very wide range of needs, e.g. Shaping of vehicle body parts, stucco and vault reinforcements, Seat shells, sculpture and architecture objects, Packaging, inlays in highly formable sealing sheets Etc..
- the first step was a solution found, in which the webs or bars of the grid between the Intersection or nodes in the x, y direction, i.e. in the Lattice plane bent out in a wave, meander or zigzag shape or buckled, so that with relatively little from the outside applied molding forces the distance between the nodes can be enlarged or reduced even further.
- this shape is already significantly increased Formability.
- one according to the invention Obtain grids in a particularly simple manner by - offset from row of stitches to row of stitches - two grid knots each through a separating cut across and preferably cut perpendicular to the conventional "stretch cut".
- the presented designs of the grid according to the invention are preferably made from homogeneous sheet or strip semi-finished products punched or assembled or glued and shaped and they do not quite point analogously to the known expanded metal precisely defined flow, bending joints or nodes.
- these grids have a high plastic formability and low elastic springback.
- the grid shown in Fig. 1 corresponds to an expanded metal grid. Which are in the grid plane, x, y plane, radiating there are grid bars 2 extending between grid nodes 1 zigzag bent, so that with relatively small of the distance between the nodes can be enlarged or reduced.
- This Shaping already achieves significantly improved formability the grid of spatial forms of all kinds.
- the grid shown in Fig. 2 is a common expanded metal grid, in which only staggered from course to course two grid nodes 1a through a separating cut 1c are cut perpendicular to the actual "stretch cut" 1d.
- a grid is easy to manufacture and on the other hand, thanks to its excellent malleability out.
- FIGS. 3 (a) and (b) A corresponding grid is shown in FIGS. 3 (a) and (b), where here the webs are not made of sheet metal as in FIG. 2, but are formed from metal wires.
- Fig. 3 (a) zigzag or wavy wires 5, 6 in parallel alignment lined up so that between give them bellies 7 and points of contact 8.
- the wires 5, 6 are in turn offset from course to course brackets every third point of contact, welded, soldered etc. while the in between Points of contact are loose.
- 3 (b) is from basically the same structure, only the wires here 5 'cut the wires 6' at an angle ⁇ , whereby instead of points of contact 8 now crossing points 8 ' surrender.
- the bracketing is the same as for the Embodiment according to Fig. 3 (a).
- the angle ⁇ is preferably ⁇ 90 °, optimally 30 ° ⁇ ⁇ 60 °, from which a particularly good stretching and upsetting behavior also results.
- a Corrugated cardboard with an intermediate layer according to a grid according to figures has an absolutely identical, defined one Willingness to kink in both directions. This in both directions The same readiness to buckle does not only result in the area of Cardboard manufacturing benefits, but more in the area Reuse of corrugated cardboard by the "on-site one-off production" made-to-measure packaging from well-preserved used material is significantly simplified.
- the grids according to FIGS. 4 to 7 either one-sided or two-sided, either before or after molding or partially glued over a large area.
- the so constructed Plates and bowls are in contrast to the widespread Hexagonal honeycomb sandwich components (honey comb sandwiches), due to its design, it is "closed-pore", so it cannot be ventilated are excellent “ventilability”.
- the grids according to Figures 4 to 7 thus also allow a special light and stiff, as well as particularly flat, also molded, So spatially curved construction of built-in tanks and storage containers. Are such containers with grid type according to FIG. 7 stiffened, so they have to function excellently as baffles Folding triangles 4, however, have openings, otherwise "closed pores” result.
Description
- Distanzhalter für hinterlüftete Verkleidungen,
- maßangeformte Verpackungen für kugelige Gegenstände u.ä.,
- Trockengitter in Industrie und Haushalt,
- GFK- ersetzende Reparatur- "Matte" im Kfz-Bereich u.ä..
- Fig. 1
- in perspektivischer Ansicht ein Gitter gemäß einer ersten Ausführungsform der Erfindung, mit in der Gitterebene ausgeknickten Gitterstegen,
- Fig. 2
- in Draufsicht ein konventionelles Streckmetallgitter mit einzelnen durchgetrennten Gitterknoten,
- Fig. 3
- in Draufsichten ein Gitter aus wellenförmig ausgebogenen
- (a) parallel aneinander gereihten Drähten
- (b) unter einem Winkel übereinandergelegten Drähten,
- Fig. 4
- in perspektivischer Ansicht ein Gitter gemäß einer weiteren Ausführungsform der Erfindung, mit dreieckförmig aus der Gitterebene ausgeknickten Gitterstegen,
- Fig. 5
- in perspektivischer Ansicht ein Gitter gemäß einer weiteren Ausführungsform der Erfindung, mit trapezförmig aus der Gitterebene ausgeknickten Gitterstegen,
- Fig. 6
- in perspektivischer Ansicht ein Gitter gemäß einer weiteren Ausführungsform der Erfindung, mit aus der Gitterebene ausgeknickten Gitterstegen mit "positiver Kopplung",
- Fig. 7
- in perspektivischer Ansicht ein Gitter gemäß einer weiteren Ausführungsform der Erfindung, mit Gitterstegen, die durch eingefaltete Dreiecksflächen versteift sind.
Claims (10)
- Gitter, insbesondere flächiges Gitter, aus Metall, Papier, Pappe oder Kunststoff, mit Gitterknoten, von denen Gitterstege zu benachbarten Gitterknoten verlaufen,
dadurch gekennzeichnet,
daß zur Anformbarkeit an beliebige Raumformen die Gitterstege zwischen den Gitterknoten wellen-, mäander- oder zickzackförmig ausgebogen bzw. ausgeknickt sind und sie durch Aufbringen äußerer Kräfte streck- oder stauchbar sind. - Gitter nach Anspruch 1,
dadurch gekennzeichnet,
daß die Gitterstege in der Gitterebene (x-/y-Ebene) ausgebogen bzw. ausgeknickt sind. - Gitter nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß es aus gewöhnlichem Streckmaterial gebildet ist, bei dem einzelne Gitterknoten (1a) durch einen Trennschnitt (1c) quer zum konventionellen "Streckschnitt" (1d) durchtrennt sind. - Gitter nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß es aus aneinander und/oder übereinander gelegten wellen-, mäander- oder zickzackförmig ausgebogenen Draht- oder Bandmaterialsträngen (5,6; 5',6') aufgebaut ist, deren Berührungs- (8) bzw. Kreuzungspunkte (8') Gitterknoten bilden, von denen einzelne fest verbunden sind, während andere lose bzw. getrennt sind. - Gitter nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
daß versetzt von Maschenreihe zu Maschenreihe jeder dritte Gitterknoten (1b) einer Maschenreihe fest verbunden ist. - Gitter nach Anspruch 1, 2 oder 4,
dadurch gekennzeichnet,
daß die Gitterstege aus der Gitterebene heraus (d.h. in z-Richtung), ein- oder beidseitig der Gitterebene, ausgebogen bzw. ausgeknickt sind. - Gitter nach Anspruch 6,
dadurch gekennzeichnet,
daß die Gitterstege dreieckförmig und/oder trapezförmig aus der Gitterebene ausgeknickt sind. - Gitter nach Anspruch 7,
dadurch gekennzeichnet,
daß die Ausknickstellen ihrerseits Gitterknoten bilden und durch entsprechend nach derselben oder zur entgegengesetzten Gitterseite ausgeknickte Gitterstege verbunden sind. - Gitter nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet,
daß die Gitterstege als flache aus der Gitterebene aufsteigende Gitterstreifen ausgebildet sind. - Gitter nach Anspruch 9,
dadurch gekennzeichnet,
daß die Gitterstreifen durch eingefaltete Dreiecksflächen versteift sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4444354 | 1994-12-14 | ||
DE4444354 | 1994-12-14 | ||
PCT/DE1995/001746 WO1996018468A1 (de) | 1994-12-14 | 1995-12-06 | Gitter, insbesondere flächiges gitter (gittermatte) |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0797486A1 EP0797486A1 (de) | 1997-10-01 |
EP0797486B1 true EP0797486B1 (de) | 1998-06-17 |
Family
ID=6535682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95940146A Expired - Lifetime EP0797486B1 (de) | 1994-12-14 | 1995-12-06 | Gitter, insbesondere flächiges gitter (gittermatte) |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0797486B1 (de) |
AT (1) | ATE167415T1 (de) |
AU (1) | AU4171496A (de) |
DE (2) | DE19581408D2 (de) |
WO (1) | WO1996018468A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19910312A1 (de) * | 1999-03-05 | 2000-11-16 | Wilhelm Roettger | Streckmetall, Lochgitter oder dergleichen Gitterstruktur |
DE19934060A1 (de) * | 1999-07-23 | 2001-02-01 | Wilhelm Roettger | Plastisch verformbare Materialbahn |
CN109990193A (zh) * | 2019-04-11 | 2019-07-09 | 西安交通大学 | 一种多级手风琴式蜂窝结构 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19721586A1 (de) * | 1997-05-23 | 1998-11-26 | Jonathan Aerospace Materials E | Dreidimensionale Gitterstruktur sowie Verfahren und Vorrichtung zu ihrer Herstellung |
GR980100008A (el) * | 1998-01-09 | 1999-09-30 | Πολυδιαστατο μοριακο ενδοστηριγμα στην υλη | |
DE19913028C1 (de) * | 1999-03-23 | 2000-08-24 | Joachim Bruensch | Obermesser für eine Vorrichtung zur Herstellung eines Streckmetallgitters |
DE19922202B4 (de) * | 1999-05-12 | 2004-02-26 | Wilhelm Röttger | Plastisch verformbare Materialbahn |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE594575A (de) * | ||||
FR465110A (fr) * | 1913-10-31 | 1914-04-08 | E W Bliss Company Soc | Procédé et appareil pour la fabrication du métal déployé |
BE333319A (de) * | 1926-04-23 | |||
DE671867C (de) * | 1933-01-07 | 1939-02-16 | Mueller Hans | Verfahren und Vorrichtung zur Herstellung von hohlen Tragplatten |
US2125583A (en) * | 1934-08-03 | 1938-08-02 | Reed William Edgar | Wire fabric |
US3672022A (en) * | 1969-04-01 | 1972-06-27 | Wire Core Dev Corp | Wire core structure for sandwich material |
-
1995
- 1995-12-06 AU AU41714/96A patent/AU4171496A/en not_active Abandoned
- 1995-12-06 AT AT95940146T patent/ATE167415T1/de not_active IP Right Cessation
- 1995-12-06 DE DE19581408T patent/DE19581408D2/de not_active Expired - Fee Related
- 1995-12-06 WO PCT/DE1995/001746 patent/WO1996018468A1/de active IP Right Grant
- 1995-12-06 DE DE59502623T patent/DE59502623D1/de not_active Expired - Lifetime
- 1995-12-06 EP EP95940146A patent/EP0797486B1/de not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19910312A1 (de) * | 1999-03-05 | 2000-11-16 | Wilhelm Roettger | Streckmetall, Lochgitter oder dergleichen Gitterstruktur |
DE19910312C2 (de) * | 1999-03-05 | 2002-03-14 | Wilhelm Roettger | Streckmetall, Lochgitter oder dergleichen Gitterstruktur |
DE19934060A1 (de) * | 1999-07-23 | 2001-02-01 | Wilhelm Roettger | Plastisch verformbare Materialbahn |
DE19934060B4 (de) * | 1999-07-23 | 2004-03-04 | Wilhelm Röttger | Plastisch verformbare Materialbahn und Verfahren zu ihrer Herstellung |
CN109990193A (zh) * | 2019-04-11 | 2019-07-09 | 西安交通大学 | 一种多级手风琴式蜂窝结构 |
Also Published As
Publication number | Publication date |
---|---|
WO1996018468A1 (de) | 1996-06-20 |
DE59502623D1 (de) | 1998-07-23 |
ATE167415T1 (de) | 1998-07-15 |
EP0797486A1 (de) | 1997-10-01 |
DE19581408D2 (de) | 1998-01-22 |
AU4171496A (en) | 1996-07-03 |
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