EP0433815B1 - Method for the construction of a false-ceiling and device for carrying out the method - Google Patents
Method for the construction of a false-ceiling and device for carrying out the method Download PDFInfo
- Publication number
- EP0433815B1 EP0433815B1 EP90123622A EP90123622A EP0433815B1 EP 0433815 B1 EP0433815 B1 EP 0433815B1 EP 90123622 A EP90123622 A EP 90123622A EP 90123622 A EP90123622 A EP 90123622A EP 0433815 B1 EP0433815 B1 EP 0433815B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ceiling
- cut
- wire
- suspension
- bore
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/18—Means for suspending the supporting construction
- E04B9/20—Means for suspending the supporting construction adjustable
- E04B9/205—Means for suspending the supporting construction adjustable by means of a resilient clip
Definitions
- the invention is directed to a method for creating a suspended ceiling, wherein a plurality of suspension wires are fixed at a distance from one another on a load-bearing ceiling construction using dowels or the like, and a height-adjustable fastening element for fastening the suspended ceiling is attached to each wire.
- ceiling constructions are conventionally in particular in public spaces, such as. B. created in shops, department stores, banks, lecture halls or the like.
- the load-bearing ceiling construction can be carried out in very different ways, for. B. as a steel skeleton structure, as a concrete ceiling, etc.
- An essential The problem with all these methods is that the suspended ceiling must run absolutely flat and horizontal if an optically correct impression is to be created. It can happen that the load-bearing ceiling construction is not flat in itself due to an articulated structure or due to tolerance deviations, so that these unevenness of the load-bearing ceiling construction must be compensated for during the hanging process.
- the conventionally used fasteners are moved along the suspension wires and by means of appropriate measurement, for. B. by a laser adjusting device, set at a certain height on the wire, the wires being cut off within a certain range which corresponds to the expected tolerance range, so that an exact leveling can be carried out by a longitudinal displacement of the fastening elements on the wire .
- Fastening elements of this type which have proven themselves, are known from EP-A-0 341 378 and are described there in detail.
- the invention has for its object to provide a method of the type mentioned and an apparatus for performing the method, which makes it possible to hang ceilings faster, without the use of specialist personnel with simple working techniques with reliable statics of the final construction.
- suspension wires are cut off by means of a leveling device to a free length corresponding to the height of the ceiling to be suspended, and in that the fastening elements are then attached in such a way that the free wire ends stop be brought to a corresponding counter stop of the fasteners.
- a laser leveling device In modern laying techniques, a laser leveling device is generally used. In a method of this type, it can be provided in a further embodiment of the invention that the wires are cut off by means of a cutting device, which has a cutting mechanism controlled by a sensor, the sensor being activated by the laser leveling device.
- the invention is also directed to a first device for carrying out the method described above, which is characterized by a handle, a longitudinal bore for receiving a suspension wire, a cutting device acting perpendicular to the longitudinal bore and a sensor device responding to a laser beam and triggering the cutting device.
- the bore is widened like a funnel at the end. This makes it much easier to insert the end of the suspension wire to be cut.
- the invention relates to a fastening device for carrying out the method according to the invention comprising two legs arranged on a base body, parallel to one another at a distance from one another and each with a bore and a pivotable and lockable lever also provided with a hole between the two legs, wherein the three holes are aligned with each other through the suspension wire.
- a fastening element is further developed according to the invention in such a way that a fourth leg extends from the base body below the three legs as a stop for the leveled and cut-off hanging wire end. Accordingly, a known fastening element only has to be slightly modified in terms of construction, so that the construction which has been tried and tested per se can largely be adopted.
- a suspension wire 1 is shown, the z. B. is attached to a concrete ceiling.
- a fastening element 2 is attached to the suspension wire 1.
- This comprises a base body 3 in the form of a Metal plate, from which a first leg 4 and at a distance from it a second leg 5, each with a bore 6 or 7, extend away, the diameter of the bores 6, 7 roughly corresponding to the outer diameter of the suspension wire 1.
- a lever 7 has a leg 8 with a bore 9.
- the lever 7 passes through a recess 10 of the base body 3 and has at its upper end a self-elastic actuating and locking projection 11, which can be locked via a shaped locking recess 12.
- This serves to engage the lever 7 from the position shown in dash-dotted lines, which enables free movement along the suspension wire 1, by pressing in the direction of arrow 13 on the upper edge 14 of the base body 3, as a result of which the leg 8 is inclined and the end of the suspension wire 1 is braced between the legs 4 and 5.
- the latching function is the same as that of a correspondingly designed fastening element described in EP-A 0 341 378.
- a third leg 15 is provided, which extends perpendicular to the base body 3 and parallel to the legs 4, 5, and which serves as a stop for the suspension wire 1.
- the fastening element 2 is thus moved along the suspension wire 1 before actuating the projection 11 until the free lower end 16 of the suspension wire 1 comes to rest against the stop leg 15.
- this stop position represents the desired end position.
- a friction sleeve 17 inserted into the leg 4 is not absolutely necessary in this embodiment, but can be used for a provisional preassembly of the fastening element 2 on the suspension wire 1.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
Die Erfindung richtet sich auf ein Verfahren zur Erstellung einer abgehängten Decke, wobei an einer tragenden Deckenkonstruktion über Dübel oder dergleichen eine Mehrzahl von Abhänge-Drähten im Abstand zueinander festgelegt wird, und wobei an jedem Draht ein höhenverstellbares Befestigungselement zur Befestigung der abgehängten Decke befestigt wird.The invention is directed to a method for creating a suspended ceiling, wherein a plurality of suspension wires are fixed at a distance from one another on a load-bearing ceiling construction using dowels or the like, and a height-adjustable fastening element for fastening the suspended ceiling is attached to each wire.
Mittels eines derartigen Verfahrens werden herkömmlicherweise Deckenkonstruktionen insbesondere in öffentlichen Räumen, wie z. B. in Läden, Kaufhäusern, Banken, Vortragssälen oder dergleichen erstellt. Die tragende Deckenkonstruktion kann dabei in ganz unterschiedlicher Weise ausgeführt sein, z. B. als Stahl-Skelettkonstruktion, als Betondecke usw. Ein wesentliches Problem bei all diesen Verfahren besteht darin, daß die abgehängte Decke absolut eben und horizontal verlaufen muß, wenn ein optisch korrekter Eindruck entstehen soll. Dabei kann es vorkommen, daß die tragende Deckenkonstruktion aufgrund einer gegliederten Struktur oder aufgrund von Toleranzabweichungen in sich nicht eben ist, so daß diese Unebenheiten der tragenden Deckenkonstruktion beim Abhängevorgang ausgeglichen werden müssen.By means of such a method, ceiling constructions are conventionally in particular in public spaces, such as. B. created in shops, department stores, banks, lecture halls or the like. The load-bearing ceiling construction can be carried out in very different ways, for. B. as a steel skeleton structure, as a concrete ceiling, etc. An essential The problem with all these methods is that the suspended ceiling must run absolutely flat and horizontal if an optically correct impression is to be created. It can happen that the load-bearing ceiling construction is not flat in itself due to an articulated structure or due to tolerance deviations, so that these unevenness of the load-bearing ceiling construction must be compensated for during the hanging process.
Die herkömmlicherweise verwendeten Befestigungselemente werden längs der Aufhängedrähte verschoben und mittels entsprechender Vermessung, z. B. durch ein Laser-Justiergerät, in einer bestimmten Höhe an dem Draht festgelegt, wobei die Drähte innerhalb eines bestimmten Bereiches abgeschnitten werden, der dem zu erwartenden Toleranzbereich entspricht, so daß durch eine Längsverschiebung der Befestigungselemente an dem Draht eine exakte Nivellierung vorgenommen werden kann. Derartige an sich sehr bewährte Befestigungselemente sind aus der EP-A-0 341 378 bekannt und werden dort im einzelnen beschrieben.The conventionally used fasteners are moved along the suspension wires and by means of appropriate measurement, for. B. by a laser adjusting device, set at a certain height on the wire, the wires being cut off within a certain range which corresponds to the expected tolerance range, so that an exact leveling can be carried out by a longitudinal displacement of the fastening elements on the wire . Fastening elements of this type, which have proven themselves, are known from EP-A-0 341 378 and are described there in detail.
Trotz der mit neuzeitlichen Befestigungselementen der vorstehend angesprochenen Art erreichbaren, erheblich erleichterten Festlegung jedes Befestigungselements an dem jeweiligen Draht wird hierdurch noch nicht die optimale Arbeitsgeschwindigkeit und Arbeitsgenauigkeit beim Verlegen von abgehängten Decken erreicht. Dabei ist zu berücksichtigen, daß angesichts der teilweise sehr großen zu verlegenden Flächen bei der Einzelmontage vergleichsweise geringfügige Zeitersparnisse sich insgesamt zu einer ganz wesentlichen Zeitersparnis bei der Gesamtmontage aufaddieren können.In spite of the considerably easier fixing of each fastening element to the respective wire that can be achieved with modern fastening elements of the type mentioned above, the optimum working speed and working accuracy when laying suspended ceilings is not yet achieved thereby. It should be taken into account that in view of the sometimes very large areas to be installed for individual assembly comparatively small time savings can add up to a very significant time saving in the overall assembly.
Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art und eine Vorrichtung zur Durchführung des Verfahrens zu schaffen, wodurch es möglich ist, Decken schneller, ohne Einsatz von Fachpersonal mit einfachen Arbeitstechniken bei zuverlässiger Statik der Endkonstruktion abzuhängen.Proceeding from this, the invention has for its object to provide a method of the type mentioned and an apparatus for performing the method, which makes it possible to hang ceilings faster, without the use of specialist personnel with simple working techniques with reliable statics of the final construction.
Diese Aufgabe wird gelöst durch ein Verfahren, bei welchem vorgesehen ist, daß die Abhänge-Drähte mittels einer Nivelliereinrichtung auf eine der Höhe der abzuhängenden Decke entsprechende freie Länge abgeschnitten werden, und daß daran dann die Befestigungselemente derart befestigt werden, daß die freien Drahtenden zum Anschlag an einen korrespondierenden Gegenanschlag der Befestigungselemente gebracht werden.This object is achieved by a method in which it is provided that the suspension wires are cut off by means of a leveling device to a free length corresponding to the height of the ceiling to be suspended, and in that the fastening elements are then attached in such a way that the free wire ends stop be brought to a corresponding counter stop of the fasteners.
Auf diese Weise wird eine äußerst definierte Ausrichtung der Befestigungselemente erreicht, wobei durch die Anlage an dem Anschlag ein Verrutschen während des Festlegevorgangs mit Sicherheit ausgeschlossen wird.In this way, an extremely defined alignment of the fastening elements is achieved, slipping during the fixing process being excluded with certainty by the contact with the stop.
Bei neuzeitlichen Verlegetechniken wird in der Regel mit einer Laser-Nivelliereinrichtung gearbeitet. Bei einem derartigen Verfahren kann in weiterer Ausgestaltung der Erfindung vorgesehen sein, daß die Drähte mittels eines Schneidgerätes abgeschnitten werden, welches einen durch einen Sensor angesteuerten Schneidmechanismus aufweist, wobei der Sensor durch die Lasernivelliereinrichtung aktiviert wird.In modern laying techniques, a laser leveling device is generally used. In a method of this type, it can be provided in a further embodiment of the invention that the wires are cut off by means of a cutting device, which has a cutting mechanism controlled by a sensor, the sensor being activated by the laser leveling device.
Auf diese Weise wird ein vollautomatischer Abschneidvorgang erreicht, ohne daß die Bedienungsperson in Abhängigkeit von dem Laserstrahl an dem Draht erst eine Markierung anbringen, dann eine Schneideinrichtung ansetzen und einen manuellen Schneidvorgang vornehmen muß. Hierdurch wird sowohl die Geschwindigkeit als auch die Genauigkeit des Abschneidvorgangs, welcher letztendlich für die erreichbare Nivelliergenauigkeit entscheidend ist, verbessert.In this way, a fully automatic cutting process is achieved without the operator having to first mark the wire depending on the laser beam, then attach a cutting device and undertake a manual cutting process. This improves both the speed and the accuracy of the cutting process, which is ultimately decisive for the leveling accuracy that can be achieved.
Die Erfindung richtet sich auch auf eine erste Vorrichtung zur Durchführung des vorstehend beschriebenen Verfahrens, welches sich auszeichnet durch einen Handgriff, eine Längsbohrung zur Aufnahme eines Abhänge-Drahtes, eine senkrecht zur Längsbohrung wirkende Schneideinrichtung und eine auf einen Laserstrahl ansprechende, die Schneideinrichtung auslösende Sensoreinrichtung.The invention is also directed to a first device for carrying out the method described above, which is characterized by a handle, a longitudinal bore for receiving a suspension wire, a cutting device acting perpendicular to the longitudinal bore and a sensor device responding to a laser beam and triggering the cutting device.
Durch diese Ausgestaltung ist es möglich, daß auch ein weniger qualifizierter Arbeiter mit dieser Vorrichtung arbeiten kann, da lediglich der abzuschneidende Abhängedraht in die Längsbohrung eingeführt werden muß und die Vorrichtung dann nur so lange vertikal bewegt zu werden braucht, bis der Sensor auf den Laserstrahl anspricht. Dabei kann vorgesehen sein, daß ein solches Ansprechen des Sensors nur nach Betätigung einer Freigabeschaltung möglich ist, um einen unbeabsichtigten Schneidvorgang beim Ansetzen des Gerätes zu vermeiden.With this configuration it is possible that even a less qualified worker can work with this device, since only the suspension wire to be cut has to be inserted into the longitudinal bore and the device then only has to be moved vertically until the sensor responds to the laser beam . It can be provided that such a response of the sensor only after actuation of an enabling circuit is possible to avoid an unintentional cutting process when attaching the device.
Vorteilhafterweise kann weiterhin vorgesehen sein, daß die Bohrung endseitig trichterartig verbreitert ist. Hierdurch wird das Einführen des Endes des abzuschneidenden Abhänge-Drahtes wesentlich erleichtert.It can advantageously also be provided that the bore is widened like a funnel at the end. This makes it much easier to insert the end of the suspension wire to be cut.
Weiterhin betrifft die Erfindung eine Befestigungseinrichtung zur Durchführung des erfindungsgemäßen Verfahrens umfassend zwei an einem Grundkörper angeordnete, sich parallel zu diesem im Abstand voneinander parallel zueinander mit je einer Bohrung versehene Schenkel und einen zwischen beiden Schenkeln angeordneten verschwenkbaren und arretierbaren ebenfalls mit einer Bohrung versehenen Hebel, wobei die drei Bohrungen miteinander fluchtend von dem Abhängedraht durchsetzt werden. Ein derartiges bekanntes Befestigungselement wird erfindungsgemäß so weitergebildet, daß sich von dem Grundkörper weg unterhalb der drei Schenkel ein vierter Schenkel als Anschlag für das nivellierte und abgeschnittene Abhängedraht-Ende erstreckt. Dementsprechend muß ein bekanntes Befestigungselement nur leicht konstruktiv modifiziert werden, so daß die an sich bewährte Konstruktion weitgehend übernommen werden kann.Furthermore, the invention relates to a fastening device for carrying out the method according to the invention comprising two legs arranged on a base body, parallel to one another at a distance from one another and each with a bore and a pivotable and lockable lever also provided with a hole between the two legs, wherein the three holes are aligned with each other through the suspension wire. Such a known fastening element is further developed according to the invention in such a way that a fourth leg extends from the base body below the three legs as a stop for the leveled and cut-off hanging wire end. Accordingly, a known fastening element only has to be slightly modified in terms of construction, so that the construction which has been tried and tested per se can largely be adopted.
Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels in Verbindung mit der Zeichnung näher beschrieben. Diese zeigt eine Seitenansicht eines erfindungsgemäßen Befestigungselements.The invention is described in more detail below using an exemplary embodiment in conjunction with the drawing. This shows a side view of a fastening element according to the invention.
In der Zeichnung ist das untere Ende eines Abhänge-Drahtes 1 dargestellt, der in einer nicht dargestellten Weise über Dübel z. B. an einer Betondecke befestigt ist. An dem Abhänge-Draht 1 ist ein Befestigungselement 2 angebracht. Dieses umfaßt einen Grundkörper 3 in Form einer Metallplatte, von welchem sich ein erster Schenkel 4 und im Abstand hiervon ein zweiter Schenkel 5 mit je einer Bohrung 6 bzw. 7 wegerstrecken, wobei der Durchmesser der Bohrungen 6, 7 in etwa dem Außendurchmesser des Abhänge-Drahtes 1 entspricht.In the drawing, the lower end of a suspension wire 1 is shown, the z. B. is attached to a concrete ceiling. A
Ein Hebel 7 weist einen Schenkel 8 mit einer Bohrung 9 auf. Der Hebel 7 durchsetzt eine Ausnehmung 10 des Grundkörpers 3 und weist an seinem oberen Ende einen eigenelastischen Betätigungs- und Rastansatz 11 auf, der über eine ausgeformte Rastausnehmung 12 arretierbar ist. Diese dient dazu, den Hebel 7 von der strichpunktiert eingezeichneten, eine freie Bewegung längs des Abhänge-Drahtes 1 ermöglichenden Position durch einen Druck in Richtung des Pfeils 13 an der Oberkante 14 des Grundkörpers 3 einzurasten, wodurch sich der Schenkel 8 schräg stellt und das Ende des Abhänge-Drahtes 1 zwischen den Schenkeln 4 und 5 verspannt wird. Die Rast-Funktion ist insoweit die gleiche wie bei einem entsprechend ausgebildeten, in der EP-A 0 341 378 beschriebenen Befestigungselement.A
Bei der erfindungsgemäßen Lösung ist demgegenüber allerdings noch ein dritter Schenkel 15 vorgesehen, welcher sich senkrecht zu dem Grundkörper 3 und parallel zu den Schenkeln 4, 5 erstreckt, und welcher als Anschlag für den Aufhänge-Draht 1 dient. Das Befestigungselement 2 wird also vor dem Betätigen des Ansatzes 11 so längs des Abhänge-Drahtes 1 verschoben, bis das freie untere Ende 16 des Abhänge-Drahtes 1 zur Anlage an dem Anschlag-Schenkel 15 gelangt.In contrast, in the solution according to the invention, a third leg 15 is provided, which extends perpendicular to the
Da der Abhänge-Draht 1 mit Hilfe des vorstehend beschriebenen erfindungsgemäßen Verfahrens so exakt auf die richtige Länge abgeschnitten ist, daß eine Nivellierung der abzuhängenden Decke erreicht wird, stellt diese Anschlag-Position die gewünschte Endlage dar. Eine in den Schenkel 4 eingesetzte Reibhülse 17 ist bei dieser Ausführungsform nicht zwingend erforderlich, kann aber für eine provisorische Vormontage des Befestigungselements 2 an dem Abhänge-Draht 1 herangezogen werden.Since the suspension wire 1 is cut to the correct length with the aid of the method according to the invention described above, so that the ceiling to be suspended is leveled, this stop position represents the desired end position. A
Claims (5)
- A method for the construction of a suspended ceiling, whereby at a supporting ceiling construction a plurality of suspension wires is fastened at a distance to each other via dowels or the like, and whereby at each wire a fastening element adjustable in height is fastened for the purpose of securing the suspended ceiling, characterized in that the suspension wires are cut off by means of a leveling means to a free length corresponding to the height of the ceiling to be suspended, and in that then the fastening elements are fastened thereto in such manner that the free wire ends are made to contact a corresponding counter stop of the fastening elements.
- A method according to claim 1, whereby the fastening elements or the ceiling respectively are aligned by means of a laser leveling means, characterized in that the wires are cut off by means of a cutting means, which comprises a cutting mechanism, which is controlled by a sensor, the sensor being activated by the laser leveling means.
- An apparatus for putting the method into practice according to claim 1, characterized in that it comprises a handle, a longitudinal bore for receiving a suspension wire, a cutting means acting normal to the longitudinal bore and a sensor means responding to a laser beam and triggering the cutting means.
- An apparatus according to claim 3, characterized in that the bore is widened like a funnel at the end.
- A fastening means for putting the method into practice according to claim 1, comprising two legs disposed at a base, which extend normal to the latter at a distance from each other and parallel to each other and which are provided with one bore each, and a pivotable and lockable lever arranged between the two legs, which lever is also provided with a bore, whereby the three bores are passed through in aligned manner by the suspension wire, characterized in that a fourth leg (15) extends away from the base (3) and underneath the three legs (4, 5 and 8) as a stop for the leveled and cut-off end of the suspension wire ( 16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90123622T ATE86338T1 (en) | 1989-12-20 | 1990-12-08 | METHOD OF CREATING A SUSPENDED CEILING AND DEVICE FOR IMPLEMENTING THE METHOD. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3942001 | 1989-12-20 | ||
| DE3942001A DE3942001A1 (en) | 1989-12-20 | 1989-12-20 | METHOD FOR CREATING A SUSPENDED CEILING AND DEVICE PERFORMANCE OF THE METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0433815A1 EP0433815A1 (en) | 1991-06-26 |
| EP0433815B1 true EP0433815B1 (en) | 1993-03-03 |
Family
ID=6395847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90123622A Expired - Lifetime EP0433815B1 (en) | 1989-12-20 | 1990-12-08 | Method for the construction of a false-ceiling and device for carrying out the method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0433815B1 (en) |
| AT (1) | ATE86338T1 (en) |
| DE (2) | DE3942001A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19724442C2 (en) * | 1997-06-10 | 2000-02-17 | Harald Laux | Device for measuring different types of stairs |
| FR2809125B1 (en) * | 2000-05-19 | 2003-01-31 | Placoplatre Lambert | CLIP CONNECTION DEVICE AND THREADED ROD FOR FUR BELONGING TO DIFFERENT FRAMES, AND CLAMP FOR SUCH A DEVICE |
| US8667756B1 (en) | 2013-01-23 | 2014-03-11 | Worthington Armstrong Venture | Noise damper |
| US9322169B2 (en) | 2014-07-18 | 2016-04-26 | Facebook, Inc. | Strut hanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3004644A (en) * | 1959-01-30 | 1961-10-17 | Gen Motors Corp | Adjustable hanger |
| US3076536A (en) * | 1961-10-30 | 1963-02-05 | George A Tinnerman | Hanger for structural elements |
| US3417586A (en) * | 1965-10-08 | 1968-12-24 | Aubrey H. Hughes | Combination leveler-bender |
| DE8517400U1 (en) * | 1985-06-14 | 1985-09-19 | R. Woeste & Co "Yorkshire" GmbH, 4000 Düsseldorf | Device for hanging pipes or cables |
| DE58901733D1 (en) * | 1988-05-13 | 1992-07-30 | Erich R Vogl | DEVICE FOR VARIABLE FORCE FIXING ATTACHMENT TO A ROD, ESPECIALLY FOR THE HEIGHT-ADJUSTABLE MOUNTING OF SUSPENDED CEILINGS. |
| DE8902811U1 (en) * | 1989-03-08 | 1989-04-27 | Wichert, Hans-Rainer, 5880 Luedenscheid, De |
-
1989
- 1989-12-20 DE DE3942001A patent/DE3942001A1/en active Granted
-
1990
- 1990-12-08 AT AT90123622T patent/ATE86338T1/en not_active IP Right Cessation
- 1990-12-08 EP EP90123622A patent/EP0433815B1/en not_active Expired - Lifetime
- 1990-12-08 DE DE9090123622T patent/DE59000982D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3942001A1 (en) | 1991-07-04 |
| EP0433815A1 (en) | 1991-06-26 |
| DE3942001C2 (en) | 1992-04-02 |
| DE59000982D1 (en) | 1993-04-08 |
| ATE86338T1 (en) | 1993-03-15 |
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