EP0476733A2 - Machine for making gutters - Google Patents
Machine for making gutters Download PDFInfo
- Publication number
- EP0476733A2 EP0476733A2 EP91202113A EP91202113A EP0476733A2 EP 0476733 A2 EP0476733 A2 EP 0476733A2 EP 91202113 A EP91202113 A EP 91202113A EP 91202113 A EP91202113 A EP 91202113A EP 0476733 A2 EP0476733 A2 EP 0476733A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- sheet metal
- metal strip
- gutters
- horizontal 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.)
- Granted
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Classifications
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
- B21D5/143—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers making use of a mandrel
Definitions
- the invention relates to a method and a device for producing suspended roof gutters by, preferably intermittent, bending forming of sheet metal strips.
- Forming machines are known for producing hanging roof gutters, downpipes or similar profiles from endless sheet metal strips or strips.
- the sheet metal strips or strips are pulled in the longitudinal direction by a reciprocating pulling slide, during the backward movement of which the sheet metal strip or strips are held by a corresponding device, in the horizontal direction over a forming device and thereby gradually formed and finally in ejected the desired shape (DE-PS 10 91 518, DE-PS 11 10 597, DE-PS 11 70 891).
- Forming machines of this type have largely proven themselves in the processing of flat sheet metal strips or strips into suspended roof gutters or similar profiles, because a relatively precise shaping to the desired profiles is achieved.
- the desired length of the profile for example according to DE-OS 26 29 559, can be cut to length by an automatic cutting device.
- the disadvantage is that the metal strips or strips have to be cooled and lubricated during the forming process.
- the emulsions used for this lead to white rust formation on the surface of the finished profiles, unless special measures are taken to prevent them.
- a bending device for the production of roof gutters from sheet metal blanks which consists of at least three axially parallel, extending over the entire length of the hanging roof gutter to be formed, supported and at least partially driven rollers, which are free and accessible from the side over the entire length of the hanging roof gutter Limit the passage gap of the adjustable minimum width for the sheet metal blank to be bent (DE-OS 29 03 990).
- the disadvantage of this bending device can be seen in the fact that the sheet metal strips must be inserted from the long side between the rollers and thus the attachment of the bead and the water rebate can only take place after the roof gutter has been bent.
- the invention has for its object to provide a method and a device with which sheet metal strips can be bent with a relatively low technical effort in a simple manner to hanging gutters with semicircular or box-shaped cross-section, preferably according to DIN 18461, with high surface quality and shape accuracy.
- the device for carrying out the method according to the invention consists of two supported, preferably non-driven rollers, which are arranged next to one another in a horizontal plane and parallel to one another in the horizontal plane and are displaceable in the horizontal plane and which can be loaded with constant pressure, with axially parallel over the middle between the rollers a form stamp attached whose length corresponds at least to the length of the sheet metal strip to be deformed.
- rollers are coupled to a drive.
- the die for the production of semicircular suspended roof gutters has an essentially circular cross-section and a recess running over its entire length in the quadrant lying on the water seam side, into which the water seam projects when bending.
- the die is essentially trapezoidal, with a counter-holder, which can be raised / lowered, located opposite the middle, between which the long side of the trapezoidal profile is located.
- Appropriate shaped profiles of the form stamp can also be used to produce special gutter shapes, such as roof gutters, Berlin gutters or the like.
- the bending forming device arranged on the base plate (1) consists of two rollers (3, 3 ') arranged in a horizontal plane to form a space (2), the ends of which are each in a bearing block (4, 4', 5, 5 ') ) are stored and which are supported on support rollers (8.8 ', 9.9', 10.10 ') mounted in fork carriers (6.6', 7.7 ').
- the bearing blocks (4,4 ', 5,5') and the fork brackets (6,6 ', 7,7') are fastened to two brackets (11,11 ') which are mounted parallel to each other and which are mounted on the base plate (1).
- the cross section of the substantially circular shaped punch (17) is lowered and the sheet metal strip (23) is continuously formed, the under the one generated by means of the hydraulic cylinders (14, 14 ', 15, 15') certain load standing, form-fitting against the sheet metal strip (23) rollers (3,3 ') perpendicular to their axes in the horizontal plane initially up to their maximum possible deflection in the central plane of the forming die (17) and pushed towards one another after exceeding the middle plane, so that the sheet metal strip (23) is pressed firmly against the forming die (17).
- the water fold (22) protrudes into the recess (18) made in the upper quadrant of the mold stamp (17).
- the rollers (3, 3 ') are moved apart, the hanging roof gutter (24) springs open, the released form stamp (17) moves up to the starting position and the one hanging with the water fold (22) in the recess (18) Finished roof gutter (24) can be removed from the form stamp (17). Since the downward movement of the molding die (17) is limited, the bead (21) and water fold (22) cannot be deformed by the rollers (3, 3 ').
- the counter-holder (19) located below the center between the rollers (3, 3 ') prevents the sheet-metal strip (23) from bulging downward.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Making Paper Articles (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Coating With Molten Metal (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Sewage (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung von Hängedachrinnen durch, vorzugsweise intermittierendes, Biegeumformen von Blechstreifen.The invention relates to a method and a device for producing suspended roof gutters by, preferably intermittent, bending forming of sheet metal strips.
Zur Herstellung von Hängedachrinnen, Regenfallrohren oder ähnlichen Profilen aus endlosen Blechbändern bzw. -streifen sind Umformmaschinen bekannt. Dabei werden die Blechbänder bzw. -streifen in ihrer Längsrichtung von einem hin- und herbewegten Ziehschlitten, bei dessen Rückwärtsbewegung das Blechband bzw. der -streifen durch eine entsprechende Einrichtung festgehalten wird, in horizontaler Richtung über eine Umformvorrichtung hinweggezogen und dabei schrittweise umgeformt und schließlich in der gewünschten Form ausgestoßen (DE-PS 10 91 518, DE-PS 11 10 597, DE-PS 11 70 891). Derartige Umformmaschinen haben sich bei der Verarbeitung von ebenen Blechbändern bzw. -streifen zu Hängedachrinnen oder dergleichen Profilen im großen und ganzen bewährt, weil eine relativ genaue Umformung zu den gewünschten Profilen erreicht wird. Am Ende des Ausstoßes kann die jeweils gewünschte Länge des Profils, beispielsweise gemäß der DE-OS 26 29 559, durch eine automatische Trennvorrichtung abgelängt werden. Von Nachteil ist jedoch, daß die Blechbänder bzw. -streifen während der Umformung gekühlt und geschmiert werden müssen. Die dazu verwendeten Emulsionen führen zu Weißrostbildung auf der Oberfläche der fertigen Profile, falls nicht besondere Maßnahmen zu dessen Verhinderung getroffen werden. Bekannt ist auch, Blechbänder oder -streifen zwischen entsprechend profilierten Walzenpaaren zu Hängedachrinnen oder dergleichen Profilen biegeumzuformen. Dieses Verfahren ist mit einem vergleichsweise hohen Aufwand für die Umformwerkzeuge verbunden, da für jede Zuschnittbreite der Blechbänder bzw. -streifen besondere Umformwerkzeuge bereitgestellt werden müssen.Forming machines are known for producing hanging roof gutters, downpipes or similar profiles from endless sheet metal strips or strips. The sheet metal strips or strips are pulled in the longitudinal direction by a reciprocating pulling slide, during the backward movement of which the sheet metal strip or strips are held by a corresponding device, in the horizontal direction over a forming device and thereby gradually formed and finally in ejected the desired shape (
Vorgesehen ist auch eine Biegevorrichtung zur Herstellung von Hängedachrinnen aus Blechzuschnitten, die aus mindestens drei achsparallelen, sich über die ganze Länge der zu formenden Hängedachrinne erstreckenden, abgestützten und mindestens zum Teil angetriebenen Walzen besteht, die einen über die ganze Länge der Hängedachrinne freien und seitlich zugänglichen Durchlaufspalt einstellbarer Mindestbreite für den zu biegenden Blechzuschnitt begrenzen (DE-OS 29 03 990). Der Nachteil dieser Biegevorrichtung ist darin zu sehen, daß die Blechstreifen von der Längsseite her zwischen die Walzen eingeführt werden müssen und somit das Anbringen von Wulst und der Wasserfalz erst nach dem Biegen der Dachrinne erfolgen kann.Also provided is a bending device for the production of roof gutters from sheet metal blanks, which consists of at least three axially parallel, extending over the entire length of the hanging roof gutter to be formed, supported and at least partially driven rollers, which are free and accessible from the side over the entire length of the hanging roof gutter Limit the passage gap of the adjustable minimum width for the sheet metal blank to be bent (DE-OS 29 03 990). The disadvantage of this bending device can be seen in the fact that the sheet metal strips must be inserted from the long side between the rollers and thus the attachment of the bead and the water rebate can only take place after the roof gutter has been bent.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung bereitzustellen, mit denen Blechstreifen mit vergleichsweise geringem technischen Aufwand auf einfache Weise zu Hängedachrinnen mit halbrundem oder kastenförmigem Querschnitt, vorzugsweise gemäß DIN 18461, mit hoher Oberflächengüte und Formgenauigkeit biegeumgeformt werden können.The invention has for its object to provide a method and a device with which sheet metal strips can be bent with a relatively low technical effort in a simple manner to hanging gutters with semicircular or box-shaped cross-section, preferably according to DIN 18461, with high surface quality and shape accuracy.
Die Lösung dieser Aufgabe besteht darin, daß die Längsränder jedes Blechstreifens zu Wulst und Wasserfalz und danach der Mittelteil des Blechstreifens durch Biegen zwischen einem Formstempel und Walzen zur Rinne geformt werden. Dieses Verfahren stellt praktisch eine Kombination von freiem Biegen und Walzenbiegen dar.The solution to this problem is that the longitudinal edges of each sheet metal strip are formed into beads and water folds and then the central part of the sheet metal strip by bending between a die and rollers to form the gutter. This process is practically a combination of free bending and roll bending.
Die Vorrichtung zur Durchführung des Verfahrens besteht erfindungsgemäß aus zwei in einer horizontalen Ebene achsparallel nebeneinander angeordneten und in der horizontalen Ebene senkrecht zu ihren Achsen verschiebbaren, abgestützten, vorzugsweise nicht angetriebenen Walzen, die mit konstantem Druck belastbar sind, wobei achsparallel über der Mitte zwischen den Walzen ein Formstempel angebracht ist, dessen Länge wenigstens der Länge des zu verformenden Blechstreifens entspricht.The device for carrying out the method according to the invention consists of two supported, preferably non-driven rollers, which are arranged next to one another in a horizontal plane and parallel to one another in the horizontal plane and are displaceable in the horizontal plane and which can be loaded with constant pressure, with axially parallel over the middle between the rollers a form stamp attached whose length corresponds at least to the length of the sheet metal strip to be deformed.
In besonderen Fällen kann es angebracht sein, wenn die Walzen mit einem Antrieb gekoppelt sind.In special cases it may be appropriate if the rollers are coupled to a drive.
Nach einem weiteren Merkmal der erfindungsgemäßen Vorrichtung besitzt der Formstempel für die Herstellung halbrunder Hängedachrinnen einen im wesentlichen kreisförmigen Querschnitt und eine über seine ganze Länge im wasserfalzseitig oben liegenden Quadranten verlaufende Ausnehmung, in die beim Biegeumformen der Wasserfalz hineinragt.According to a further feature of the device according to the invention, the die for the production of semicircular suspended roof gutters has an essentially circular cross-section and a recess running over its entire length in the quadrant lying on the water seam side, into which the water seam projects when bending.
Für die Herstellung von Hängedachrinnen mit kastenförmigem Profil ist der Formstempel im wesentlichen trapezförmig ausgebildet, wobei sich unterhalb der Mitte zwischen den Walzen ein heb-/senkbarer Gegenhalter, dem die lange Seite des trapezförmigen Profils gegenüberliegt, befindet.For the production of roof gutters with a box-shaped profile, the die is essentially trapezoidal, with a counter-holder, which can be raised / lowered, located opposite the middle, between which the long side of the trapezoidal profile is located.
Durch entsprechend gestaltete Profile des Formstempels lassen sich auch Dachrinnen-Sonderformen, wie Aufdachrinne, Berliner Rinne oder dergleichen, herstellen.Appropriate shaped profiles of the form stamp can also be used to produce special gutter shapes, such as roof gutters, Berlin gutters or the like.
Das erfindungsgemäße Verfahren sowie die Vorrichtung zur Durchführung des Verfahrens sind im folgenden anhand der Zeichnungen näher und beispielhaft erläutert. Es zeigen in schematischer Darstellung:
- Fig. 1
- eine Draufsicht auf die Biegeumformvorrichtung.
- Fig. 2
- einen Querschnitt entlang der Schnittlinie I-I der Fig. 1 der Biegeumformvorrichtung in Grundposition.
- Fig. 3
- einen Querschnitt entlang der Schnittlinie I-I der Fig. 1 der Biegeumformvorrichtung in der Position am Ende des Verformungsvorgangs.
- Fig. 4
- einen Querschnitt entlang der Schnittlinie I-I der Fig. 1 der Biegeumformvorrichtung in der Endposition.
- Fig. 1
- a plan view of the bending forming device.
- Fig. 2
- a cross section along section line II of Fig. 1 of the bending forming device in the basic position.
- Fig. 3
- a cross section along the section line II of Fig. 1 of the bending forming device in the position at the end of the deformation process.
- Fig. 4
- a cross section along section line II of Fig. 1 of the bending forming device in the end position.
Die auf der Grundplatte (1) angeordnete Biegeumformvorrichtung besteht aus zwei in einer horizontalen Ebene unter Bildung eines Zwischenraums (2) achsparallel zueinander angeordneten Walzen (3,3'), deren Enden jeweils in einem Lagerbock (4,4',5,5') gelagert sind und die sich auf in Gabelträgern (6,6',7,7') gelagerten Stützwalzen (8,8',9,9',10,10') abstützen. Die Lagerböcke (4,4',5,5') und die Gabelträger (6,6',7,7') sind an zwei parallel zueinander gelagerten Trägern (11,11') befestigt, die in auf der Grundplatte (1) angebrachten Führungen (12,13) mittels auf der Rückseite der Träger (11,11') angreifender, auf der Grundplatte (1) befestigter Hydraulikzylinder (14,14',15,15') senkrecht zu ihren Längsachsen horizontal verschiebbar gelagert sind. In der Mitte über dem Zwischenraum (2) der Walzen (3,3') ist der an der Aufhängung (16) befestigte heb-/senkbare Formstempel (17) und darunter der heb-/senkbare Gegenhalter (19) angebracht. Auf der Grundplatte (1) befinden sich über den Trägern (11,11') verstellbare Anschläge (20,20') für die Anlage von Wulst (21) bzw. Wasserfalz (22) des Blechstreifens (23).The bending forming device arranged on the base plate (1) consists of two rollers (3, 3 ') arranged in a horizontal plane to form a space (2), the ends of which are each in a bearing block (4, 4', 5, 5 ') ) are stored and which are supported on support rollers (8.8 ', 9.9', 10.10 ') mounted in fork carriers (6.6', 7.7 '). The bearing blocks (4,4 ', 5,5') and the fork brackets (6,6 ', 7,7') are fastened to two brackets (11,11 ') which are mounted parallel to each other and which are mounted on the base plate (1). attached guides (12, 13) by means of hydraulic cylinders (14, 14 ', 15, 15'), which engage on the back of the supports (11, 11 ') and are fastened to the base plate (1), are horizontally displaceable perpendicular to their longitudinal axes. In the middle above the intermediate space (2) of the rollers (3, 3 '), the lifting / lowering form stamp (17) attached to the suspension (16) and below the lifting / lowering counter-holder (19) are attached. On the base plate (1) there are stops (20, 20 ') adjustable above the supports (11, 11') for the abutment of the bead (21) or water fold (22) of the sheet metal strip (23).
Der an dem einen Längsrand mit der Wulst (21) und an dem anderen Längsrand mit dem Wasserfalz (22) versehene Blechstreifen (23) liegt mit der Wulst (21) an den Anschlägen (20) und mit dem Wasserfalz (22) an den Anschlägen (20') an. Zur Herstellung der halbrunden Hängedachrinne (24) wird der im Querschnitt im wesentlichen kreisförmige Formstempel (17) abgesenkt und der Blechstreifen (23) kontinuierlich umgeformt, wobei die unter einer, mittels der Hydraulikzylinder (14,14',15,15') erzeugten, bestimmten Belastung stehenden, formschlüssig an dem Blechstreifen (23) anliegenden Walzen (3,3') senkrecht zu ihren Achsen in der horizontalen Ebene zunächst bis zu ihrer maximal möglichen Auslenkung in der Mittelebene des Formstempels (17) auseinander und nach Überschreitung der Mittelebene aufeinander zu geschoben werden, so daß der Blechstreifen (23) fest gegen den Formstempel (17) gedrückt wird. Am Ende der Abwärtsbewegung des Stempels (17) ragt der Wasserfalz (22) in die im oben liegenden Quadranten des Formstempels (17) angebrachte Ausnehmung (18) hinein. Nach Ablauf einer bestimmten Haltezeit werden die Walzen (3,3') auseinandergefahren, die Hängedachrinne (24) federt auf, der freigegebene Formstempel (17) fährt in die Ausgangsposition hoch und die mit dem Wasserfalz (22) in der Ausnehmung (18) hängende fertige Hängedachrinne (24) kann vom Formstempel (17) abgenommen werden. Da die Abwärtsbewegung des Formstempels (17) begrenzt ist, können Wulst (21) und Wasserfalz (22) durch die Walzen (3,3') nicht deformiert werden.The sheet metal strip (23) provided on one longitudinal edge with the bead (21) and on the other longitudinal edge with the water fold (22) lies with the bead (21) on the stops (20) and with the water fold (22) on the stops (20 '). To produce the semicircular suspended roof gutter (24), the cross section of the substantially circular shaped punch (17) is lowered and the sheet metal strip (23) is continuously formed, the under the one generated by means of the hydraulic cylinders (14, 14 ', 15, 15') certain load standing, form-fitting against the sheet metal strip (23) rollers (3,3 ') perpendicular to their axes in the horizontal plane initially up to their maximum possible deflection in the central plane of the forming die (17) and pushed towards one another after exceeding the middle plane, so that the sheet metal strip (23) is pressed firmly against the forming die (17). At the end of the downward movement of the stamp (17), the water fold (22) protrudes into the recess (18) made in the upper quadrant of the mold stamp (17). After a certain holding time has elapsed, the rollers (3, 3 ') are moved apart, the hanging roof gutter (24) springs open, the released form stamp (17) moves up to the starting position and the one hanging with the water fold (22) in the recess (18) Finished roof gutter (24) can be removed from the form stamp (17). Since the downward movement of the molding die (17) is limited, the bead (21) and water fold (22) cannot be deformed by the rollers (3, 3 ').
Für den Fall, daß zur Herstellung kastenförmiger Hängedachrinnen der Einsatz eines im Querschnitt trapezförmigen Formstempels erforderlich ist, verhindert der unterhalb der Mitte zwischen den Walzen (3,3') angebrachte Gegenhalter (19) ein Ausbauchen des Blechstreifens (23) nach unten.In the event that the use of a shaped stamp with a trapezoidal cross-section is required to produce box-shaped roof gutters, the counter-holder (19) located below the center between the rollers (3, 3 ') prevents the sheet-metal strip (23) from bulging downward.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß sich mit relativ geringem technischen Aufwand auf einfache Weise aus Blechstreifen Hängedachrinnen mit hoher Oberflächengüte und Formgenauigkeit herstellen lassen.The advantages achieved by the invention are, in particular, that hanging roof gutters with high surface quality and shape accuracy can be produced in a simple manner from sheet metal strips with relatively little technical effort.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4029723A DE4029723A1 (en) | 1990-09-20 | 1990-09-20 | METHOD AND DEVICE FOR THE PRODUCTION OF HANGER GUTTERS |
| DE4029723 | 1990-09-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0476733A2 true EP0476733A2 (en) | 1992-03-25 |
| EP0476733A3 EP0476733A3 (en) | 1992-10-07 |
| EP0476733B1 EP0476733B1 (en) | 1996-11-27 |
Family
ID=6414568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91202113A Expired - Lifetime EP0476733B1 (en) | 1990-09-20 | 1991-08-19 | Machine for making gutters |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0476733B1 (en) |
| AT (1) | ATE145572T1 (en) |
| CS (1) | CS285991A3 (en) |
| DE (2) | DE4029723A1 (en) |
| DK (1) | DK0476733T3 (en) |
| HU (1) | HU210397B (en) |
| YU (1) | YU138191A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003041886A1 (en) * | 2001-09-27 | 2003-05-22 | Ortic Ab | A method of bending metal roofing sheets and a bending apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313328A (en) * | 1928-06-29 | 1929-06-13 | Thomas Andrew Hayward | Improvements in or relating to tubes |
| DE650499C (en) * | 1935-07-28 | 1937-09-24 | Georg Eichner | Tool set for the manual production of gutters |
| DE2631219A1 (en) * | 1976-07-12 | 1978-01-26 | Fricke Theodor | Roof gutter made from sheet metal strip - is formed on profiled roller with slot for edge contour |
| GB2040746A (en) * | 1979-10-09 | 1980-09-03 | Usher G R | Apparatus and method for forming seamed tube |
| JPS5942123A (en) * | 1982-09-03 | 1984-03-08 | Shiga Seikan Kk | Method of forming metallic plate into cylindrical form |
-
1990
- 1990-09-20 DE DE4029723A patent/DE4029723A1/en not_active Withdrawn
-
1991
- 1991-08-09 YU YU138191A patent/YU138191A/en unknown
- 1991-08-19 EP EP91202113A patent/EP0476733B1/en not_active Expired - Lifetime
- 1991-08-19 DE DE59108375T patent/DE59108375D1/en not_active Expired - Fee Related
- 1991-08-19 AT AT91202113T patent/ATE145572T1/en not_active IP Right Cessation
- 1991-08-19 DK DK91202113.6T patent/DK0476733T3/en active
- 1991-09-19 CS CS912859A patent/CS285991A3/en unknown
- 1991-09-19 HU HU913008A patent/HU210397B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313328A (en) * | 1928-06-29 | 1929-06-13 | Thomas Andrew Hayward | Improvements in or relating to tubes |
| DE650499C (en) * | 1935-07-28 | 1937-09-24 | Georg Eichner | Tool set for the manual production of gutters |
| DE2631219A1 (en) * | 1976-07-12 | 1978-01-26 | Fricke Theodor | Roof gutter made from sheet metal strip - is formed on profiled roller with slot for edge contour |
| GB2040746A (en) * | 1979-10-09 | 1980-09-03 | Usher G R | Apparatus and method for forming seamed tube |
| JPS5942123A (en) * | 1982-09-03 | 1984-03-08 | Shiga Seikan Kk | Method of forming metallic plate into cylindrical form |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 8, no. 146 (M-307)(1583) 7. Juli 1984 & JP-A-59 042 123 ( SHIGA SEIKAN ) 8. März 1984 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003041886A1 (en) * | 2001-09-27 | 2003-05-22 | Ortic Ab | A method of bending metal roofing sheets and a bending apparatus |
| CZ299155B6 (en) * | 2001-09-27 | 2008-05-07 | Ortic Ab | Method of bending metal roofing sheets and apparatus for making the same |
| KR100882374B1 (en) | 2001-09-27 | 2009-02-05 | 오르틱 아베 | A method of bending metal roofing sheets and a bending apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0476733B1 (en) | 1996-11-27 |
| DE59108375D1 (en) | 1997-01-09 |
| DK0476733T3 (en) | 1996-12-16 |
| HU210397B (en) | 1995-04-28 |
| HU913008D0 (en) | 1992-01-28 |
| DE4029723A1 (en) | 1992-03-26 |
| ATE145572T1 (en) | 1996-12-15 |
| YU138191A (en) | 1995-03-27 |
| HUT59997A (en) | 1992-07-28 |
| EP0476733A3 (en) | 1992-10-07 |
| CS285991A3 (en) | 1992-04-15 |
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