EP3433448B1 - Frame element with a support head, and building scaffold comprising such a frame element - Google Patents
Frame element with a support head, and building scaffold comprising such a frame element Download PDFInfo
- Publication number
- EP3433448B1 EP3433448B1 EP17708472.0A EP17708472A EP3433448B1 EP 3433448 B1 EP3433448 B1 EP 3433448B1 EP 17708472 A EP17708472 A EP 17708472A EP 3433448 B1 EP3433448 B1 EP 3433448B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spindle
- positioning groove
- frame
- tube
- frame tube
- 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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Links
- 230000014392 establishment of spindle localization Effects 0.000 claims description 64
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
- E04G1/06—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section comprising members with rod-like or tubular portions fitting together end to end, with or without separate connecting pieces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
- E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
- E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
- E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
- E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
- E04G2001/158—Platforms supported by spigots which engage through holes in the platform
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
- E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
- E04G7/20—Stiff scaffolding clamps for connecting scaffold members of common shape for ends of members only, e.g. for connecting members in end-to-end relation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
- E04G7/301—Scaffolding bars or members with non-detachably fixed coupling elements for connecting bars or members which are parallel or in end-to-end relation
Definitions
- the previously described carrier head of the scaffolding element is generally used to transfer a vertical load into a scaffolding.
- concrete formwork can be placed or mounted on the carrier head.
- the girder head can also be used as a temporary support for renovations.
- the document DE4027739 discloses such a scaffolding element.
- the object of the present invention is now to provide a framework element which can transfer significantly more vertical load via the girder head without being made significantly more massive and heavier.
- the object of the present invention is also to provide a scaffolding with such a scaffolding element.
- the object according to the invention is thus achieved by a scaffolding element for a scaffolding.
- the framework element has a carrier head with a threaded spindle.
- the scaffolding element also has a scaffolding tube with a spindle receiving section.
- the threaded spindle is partially inserted into the spindle receiving section.
- the spindle receiving section is located at a first axial end of the scaffold tube.
- a spindle nut is mounted on the threaded spindle in such a way that the carrier head, when the scaffolding element is mounted vertically, introduces its load into the scaffolding tube via the threaded spindle.
- the spindle receiving section has a first spindle positioning groove which reduces the inside diameter of the scaffold tube.
- the first spindle positioning groove significantly improves the vertical load-bearing capacity of the framework element without significantly increasing the weight of the framework element.
- the first spindle positioning groove increases the load-bearing capacity of the scaffolding element in two ways: On the one hand, the strength of the scaffolding tube in the area of the first spindle positioning groove is increased due to the shape of the first spindle positioning groove. On the other hand, the threaded spindle is better aligned in the scaffold tube due to the reduced inner diameter of the scaffold tube at the first spindle positioning groove. Overall, this results in a considerably improved suitability of the scaffold element for vertical load transfer.
- the threaded spindle is aligned as centered as possible in the scaffolding tube by the first spindle positioning groove, with a clearance fit between the threaded spindle and the scaffolding tube for inserting the threaded spindle into the scaffolding tube.
- the longitudinal axis of the threaded spindle has the angle ⁇ with respect to the longitudinal axis of the scaffolding tube, the angle ⁇ being less than 1 °, in particular less than 0.8 °, preferably less than 0.7 °.
- the vertical load is thereby introduced as centrally as possible into the scaffolding tube in order to keep the moments occurring in the scaffolding small.
- the first spindle positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. In a preferred embodiment of the first spindle positioning groove, however, it extends in the circumferential direction of the scaffolding tube.
- the first spindle positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
- a particularly effective centering of the threaded spindle in the scaffold tube takes place when the axial distance of the first spindle positioning groove from first axial scaffold tube end is smaller than the inner diameter of the spindle receiving portion.
- the spindle receiving section also has a second spindle positioning groove.
- the second spindle positioning groove is axially spaced from the first spindle positioning groove and reduces the inside diameter of the scaffold tube.
- the second spindle positioning groove defines the alignment of the threaded spindle in the scaffolding tube by at least two axially spaced spindle positioning grooves, whereby the alignment, in particular the centering, of the threaded spindle is particularly precise.
- the second spindle positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle.
- the second spindle positioning groove can extend in the circumferential direction of the scaffold tube. In this case, the second spindle positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
- the spindle receiving section has a third spindle positioning groove.
- the third spindle positioning groove is axially further spaced from the first spindle positioning groove than the second spindle positioning groove.
- the third spindle positioning groove reduces the inner diameter of the scaffold tube. The alignment, in particular the centering, of the threaded spindle in the scaffolding tube is further improved by the third spindle positioning groove.
- the third spindle positioning groove can extend parallel to the longitudinal axis of the scaffold tube. There are preferably at least three over the Grooves distributed around the scaffold tube are provided for aligning the threaded spindle. Alternatively, the third spindle positioning groove can extend in the circumferential direction of the scaffold tube. The third spindle positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially. The third spindle positioning groove is preferably less spaced axially from the second spindle positioning groove than the second spindle positioning groove is spaced from the first spindle positioning groove.
- the second spindle positioning groove reduces the inner diameter of the scaffolding tube just as much as the first spindle positioning groove.
- the third spindle positioning groove can also reduce the inner diameter of the scaffold tube. The radial play of the threaded spindle in the scaffold tube is thereby significantly reduced, the threaded spindle nevertheless remaining easy to insert into the scaffold tube.
- the scaffold tube can have a pin receiving section at its second axial scaffold tube end, which is opposite the first axial scaffold tube end, into which a pin of a further scaffold element can be inserted.
- the pin receiving section can have a first pin positioning groove which reduces the inner diameter of the scaffold tube.
- the scaffold tube is mechanically reinforced in the area of the pin receiving section by the first pin positioning groove.
- the first pin positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. Alternatively, the first pin positioning groove can extend in the circumferential direction of the scaffold tube. The The first pin positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
- the axial distance between the first pin positioning groove and the second axial scaffold tube end is preferably smaller than the inner diameter of the first pin positioning groove.
- the pin receiving section has a second pin positioning groove which is axially spaced from the first pin positioning groove and which reduces the inside diameter of the scaffold tube.
- the pin of a further framework element is thereby centered on two pin positioning grooves that are axially spaced from one another in the pin receiving section.
- the second pin positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. Alternatively, the second pin positioning groove can extend in the circumferential direction of the scaffold tube. The second pin positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
- the scaffold tube has a further stiffening groove in the area of the junction, which is spaced less than 15 cm from the junction in a second axial direction and reduces the inner diameter of the scaffold tube or increases the outer diameter of the scaffold tube.
- the second axial direction is opposite to the first axial direction.
- the nodal point is reinforced by a further stiffening groove in both axial directions by a stiffening groove in each case.
- the spindle positioning groove (s) and the stiffening groove (s) preferably reduce the inside diameter of the scaffold tube to the same extent.
- the object of the invention is also achieved by a scaffolding with a scaffolding element described above.
- FIG. 1 shows a framework element 10 according to the prior art.
- the scaffolding element 10 has a scaffolding tube 12 .
- a spindle receiving section 14 is formed in the scaffolding tube 12.
- a threaded spindle 16 is inserted into the spindle receiving section 14.
- the threaded spindle 16 has an external thread 18 .
- the known framework element 10 also has a spindle nut 20 .
- the spindle nut 20 has an internal thread 22 with which the spindle nut 20 is attached to the external thread 18 of the threaded spindle 16.
- the spindle receiving section 14 has the same inner diameter throughout in the axial direction.
- the angle ⁇ is typically 1.29 °.
- FIG Figure 2 shows in contrast to Figure 1 a scaffold element 10 according to the invention.
- the scaffold element 10 according to FIG Figure 2 has a scaffolding tube 12 with a spindle receiving section 14.
- the framework element 10 has a threaded spindle 16 on which a spindle nut 20 is arranged.
- the spindle receiving section 14 has a first spindle positioning groove 24, a second spindle positioning groove 26 and a third spindle positioning groove 28 .
- the spindle positioning grooves 24, 26, 28 define the effective inner diameter of the spindle receiving section 14 for the threaded spindle 16.
- the spindle positioning grooves 24, 26, 28 make the threaded spindle 16 much less inclined in the scaffold tube 12.
- the angle ⁇ between the longitudinal axis 23a of the threaded spindle 16 and the longitudinal axis 23b of the scaffolding tube 12 is in particular less than 0.8 °, preferably less than 0.7 °. In comparison to the framework element 10 according to Figure 1 the vertical load-bearing capacity of the scaffold element 10 is thereby increased by approximately 10%.
- the spindle receiving section is mechanically reinforced against buckling by the spindle positioning grooves 24, 26, 28.
- FIG. 2 a further scaffolding element 30 is shown (dashed), the pin 32 of which can be inserted into the scaffolding tube 12.
- the scaffold tube 12 thus has a first axial scaffold tube end 34 into which the threaded spindle 16 can be inserted. Furthermore, the scaffold tube 12 has a second axial scaffold tube end 36 into which the pin 32 of the further scaffold element 30 can be inserted. At the second axial scaffold tube end 36, a pin receiving section 38 for receiving the pin 32 in the scaffold tube 12 is formed. A mechanical reinforcement of the pin receiving section 38 and an improved centering of the pin 32 takes place by a first pin positioning groove 40 and a second pin positioning groove 42.
- FIG. 3 shows another scaffold element 10 according to the invention.
- the scaffold element 10 has a node 44 with a coupling point 46 .
- the coupling point 46 is in the present case in the form of a rosette.
- Cross bars 48, 50 are arranged at the coupling point 46.
- the scaffold tube 12 has a first stiffening groove 54 which is formed in a first axial direction 56 at a distance from the coupling point 46 in the scaffold tube 12.
- a second stiffening groove 58 is formed in the first axial direction 56 at a distance from the coupling point 46 in the scaffold tube 12.
- Shoulders 60, 62 of crossbars 48, 50 rest on the scaffold tube 12 between the first reinforcement groove 54 and the second reinforcement groove 58 in the area of the scaffold tube 12.
- the first stiffening groove 54 and the second stiffening groove 58 thus form a mechanically particularly stable region of the scaffold tube 12 in which, in particular, the mechanical stability against denting of the scaffold tube 12 is very high.
- the scaffolding tube 12 has a further stiffening groove 64 .
- the further stiffening groove 64 is spaced apart from the coupling point 46 in a second axial direction 66 .
- the first axial direction 56 and the second The axial direction 66 run along the longitudinal axis 23b of the scaffolding tube 12, the second axial direction 66 being opposite to the first axial direction 56.
- tuck-in lugs 68, 70 of crossbars 48, 50 can be mechanically particularly firmly pressed onto scaffolding tube 12 without plastic deformation of scaffolding tube 12 when the crossbars 48 and / or 50 are loaded.
- the frame element 10 can be positioned between axially adjacent coupling points, of which in FIG Figure 3 only one coupling point 46 is shown, at least one additional stiffening groove 72 can be formed in the scaffold tube 12.
- FIG 4 shows a scaffolding 74 with several scaffolding elements, of which for the sake of clarity in Figure 4 only a first frame element 10 is provided with a reference number.
- the framework element 10 has, for example, a node 44 at which - likewise by way of example - a cross bar 48 is arranged. Due to the small representation of the scaffolding 74 in Figure 4 no groove according to the invention visible.
- the framework element 10 has a carrier head 76 .
- the invention relates in summary to a scaffolding element 10 with a scaffolding tube 12 into which a threaded spindle 16 is partially inserted at one end.
- the threaded spindle 16 is guided by at least one spindle positioning groove 24, 26, 28, in particular a plurality of spindle positioning grooves 24, 26, 28.
- the scaffolding tube 12 is in the area the threaded spindle 16 received in the scaffolding tube 12 is mechanically reinforced.
- the maximum inclination of the threaded spindle 16 in the scaffolding tube 12 is reduced by the spindle positioning groove (s) 24, 26, 28.
- the scaffolding element 10 can hereby be acted upon by a force in the direction of the longitudinal axis 23b of the scaffolding tube 12.
- the scaffold tube 12 can have at least one pin positioning groove 40, 42, in particular several pin positioning grooves 40, 42.
- the scaffolding tube 12 can have at least one stiffening groove 54, 58, 64 in the area of a node 44.
- the scaffolding tube 12 can have at least one additional stiffening groove 72 between two nodes 44.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
Die Erfindung betrifft ein Gerüstelement für ein Baugerüst, wobei das Gerüstelement Folgendes aufweist:
- a) Einen Trägerkopf mit einer Gewindespindel;
- b) ein vertikal im Baugerüst montierbares Gerüstrohr mit einem Spindelaufnahmeabschnitt an einem ersten axialen Gerüstrohrende, wobei die Gewindespindel in den Spindelaufnahmeabschnitt teilweise eingeführt ist;
- c) eine auf die Gewindespindel montierte Spindelmutter, wobei der Trägerkopf im montierten Zustand des Gerüstelements seine vertikale Last über die Gewindespindel in das Gerüstrohr einleitet.
- a) A carrier head with a threaded spindle;
- b) a scaffold tube which can be mounted vertically in the scaffolding and has a spindle receiving section at a first axial scaffolding tube end, the threaded spindle being partially inserted into the spindle receiving section;
- c) a spindle nut mounted on the threaded spindle, the carrier head introducing its vertical load into the scaffolding tube via the threaded spindle in the assembled state of the scaffolding element.
Der zuvor beschriebene Trägerkopf des Gerüstelements dient allgemein zum Abtragen einer vertikalen Last in ein Baugerüst. Auf den Trägerkopf ist beispielsweise eine Betonschalung auflegbar bzw. montierbar. Weiterhin kann der Trägerkopf als temporäre Abstützung bei Sanierungen eingesetzt werden.The previously described carrier head of the scaffolding element is generally used to transfer a vertical load into a scaffolding. For example, concrete formwork can be placed or mounted on the carrier head. The girder head can also be used as a temporary support for renovations.
Das Dokument
Aufgabe der vorliegenden Erfindung ist es nun, ein Gerüstelement bereitzustellen, das über den Trägerkopf signifikant mehr vertikale Last abtragen kann, ohne deutlich massiver und schwerer ausgebildet zu sein. Aufgabe der vorliegenden Erfindung ist es weiterhin, ein Baugerüst mit einem solchen Gerüstelement bereitzustellen.The object of the present invention is now to provide a framework element which can transfer significantly more vertical load via the girder head without being made significantly more massive and heavier. The object of the present invention is also to provide a scaffolding with such a scaffolding element.
Die erfindungsgemäße Aufgabe wird durch ein Gerüstelement mit den Merkmalen des Patentanspruchs 1 und ein Baugerüst gemäß Patentanspruch 12 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.The object of the invention is achieved by a scaffolding element with the features of claim 1 and a scaffolding according to
Die erfindungsgemäße Aufgabe wird somit gelöst durch ein Gerüstelement für ein Baugerüst. Das Gerüstelement weist einen Trägerkopf mit einer Gewindespindel auf. Das Gerüstelement weist weiterhin ein Gerüstrohr mit einem Spindelaufnahmeabschnitt auf. In den Spindelaufnahmeabschnitt ist die Gewindespindel teilweise eingeführt. Der Spindelaufnahmeabschnitt befindet sich dabei an einem ersten axialen Ende des Gerüstrohrs. Auf die Gewindespindel ist eine Spindelmutter so montiert, dass der Trägerkopf im montierten vertikalen Zustand des Gerüstelements seine Last über die Gewindespindel in das Gerüstrohr einleitet. Der Spindelaufnahmeabschnitt weist dabei eine erste Spindelpositioniernut auf, die den Innendurchmesser des Gerüstrohrs verringert.The object according to the invention is thus achieved by a scaffolding element for a scaffolding. The framework element has a carrier head with a threaded spindle. The scaffolding element also has a scaffolding tube with a spindle receiving section. The threaded spindle is partially inserted into the spindle receiving section. The spindle receiving section is located at a first axial end of the scaffold tube. A spindle nut is mounted on the threaded spindle in such a way that the carrier head, when the scaffolding element is mounted vertically, introduces its load into the scaffolding tube via the threaded spindle. The spindle receiving section has a first spindle positioning groove which reduces the inside diameter of the scaffold tube.
Die erste Spindelpositioniernut verbessert signifikant die vertikale Tragfähigkeit des Gerüstelements, ohne das Gewicht des Gerüstelements maßgeblich zu erhöhen. Dabei wird durch die erste Spindelpositioniernut die Tragfähigkeit des Gerüstelements in zweifacher Hinsicht erhöht: Zum einen wird die Festigkeit des Gerüstrohrs im Bereich der ersten Spindelpositioniernut aufgrund der Formgebung der ersten Spindelpositioniernut erhöht. Zum anderen wird die Gewindespindel durch den verringerten Innendurchmesser des Gerüstrohrs an der ersten Spindelpositioniernut besser im Gerüstrohr ausgerichtet. Insgesamt erfolgt hierdurch eine erheblich verbesserte Eignung des Gerüstelements zur vertikalen Lastabtragung.The first spindle positioning groove significantly improves the vertical load-bearing capacity of the framework element without significantly increasing the weight of the framework element. The first spindle positioning groove increases the load-bearing capacity of the scaffolding element in two ways: On the one hand, the strength of the scaffolding tube in the area of the first spindle positioning groove is increased due to the shape of the first spindle positioning groove. On the other hand, the threaded spindle is better aligned in the scaffold tube due to the reduced inner diameter of the scaffold tube at the first spindle positioning groove. Overall, this results in a considerably improved suitability of the scaffold element for vertical load transfer.
Vorzugsweise wird die Gewindespindel durch die erste Spindelpositioniernut möglichst zentriert im Gerüstrohr ausgerichtet, wobei zum Einführen der Gewindespindel in das Gerüstrohr eine Spielpassung zwischen Gewindespindel und Gerüstrohr vorliegt. Dabei weist die Längsachse der Gewindespindel den Winkel β gegenüber der Längsachse des Gerüstrohrs auf, wobei der Winkel β weniger als 1°, insbesondere weniger als 0,8°, vorzugsweise weniger als 0,7°, beträgt. Die Vertikallast wird dadurch möglichst zentrisch in das Gerüstrohr eingeleitet, um im Baugerüst auftretende Momente klein zu halten.Preferably, the threaded spindle is aligned as centered as possible in the scaffolding tube by the first spindle positioning groove, with a clearance fit between the threaded spindle and the scaffolding tube for inserting the threaded spindle into the scaffolding tube. The longitudinal axis of the threaded spindle has the angle β with respect to the longitudinal axis of the scaffolding tube, the angle β being less than 1 °, in particular less than 0.8 °, preferably less than 0.7 °. The vertical load is thereby introduced as centrally as possible into the scaffolding tube in order to keep the moments occurring in the scaffolding small.
Die erste Spindelpositioniernut kann sich parallel zur Längsachse des Gerüstrohrs erstrecken. Dabei sind vorzugsweise zumindest drei, über den Umfang des Gerüstrohrs verteilte, Nuten zur Ausrichtung der Gewindespindel vorgesehen. In bevorzugter Ausgestaltung der ersten Spindelpositioniernut erstreckt sich diese jedoch in Umfangsrichtung des Gerüstrohrs. Die erste Spindelpositioniernut kann dabei in Umfangsrichtung des Gerüstrohrs unterbrochen oder umlaufend ausgebildet sein.The first spindle positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. In a preferred embodiment of the first spindle positioning groove, however, it extends in the circumferential direction of the scaffolding tube. The first spindle positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
Eine besonders effektive Zentrierung der Gewindespindel im Gerüstrohr erfolgt, wenn der axiale Abstand der ersten Spindelpositioniernut vom ersten axialen Gerüstrohrende kleiner ist als der Innendurchmesser des Spindelaufnahmeabschnitts.A particularly effective centering of the threaded spindle in the scaffold tube takes place when the axial distance of the first spindle positioning groove from first axial scaffold tube end is smaller than the inner diameter of the spindle receiving portion.
Weiter weist der Spindelaufnahmeabschnitt eine zweite Spindelpositioniernut auf. Die zweite Spindelpositioniernut ist dabei axial von der ersten Spindelpositioniernut beabstandet und verringert den Innendurchmesser des Gerüstrohrs. Durch die zweite Spindelpositioniernut wird die Ausrichtung der Gewindespindel im Gerüstrohr durch zumindest zwei axial voneinander beabstandete Spindelpositioniernuten definiert, wodurch die Ausrichtung, insbesondere die Zentrierung, der Gewindespindel besonders präzise erfolgt.The spindle receiving section also has a second spindle positioning groove. The second spindle positioning groove is axially spaced from the first spindle positioning groove and reduces the inside diameter of the scaffold tube. The second spindle positioning groove defines the alignment of the threaded spindle in the scaffolding tube by at least two axially spaced spindle positioning grooves, whereby the alignment, in particular the centering, of the threaded spindle is particularly precise.
Die zweite Spindelpositioniernut kann sich parallel zur Längsachse des Gerüstrohrs erstrecken. Dabei sind vorzugsweise zumindest drei, über den Umfang des Gerüstrohrs verteilte, Nuten zur Ausrichtung der Gewindespindel vorgesehen. Alternativ dazu kann sich die zweite Spindelpositioniernut in Umfangsrichtung des Gerüstrohrs erstrecken. Dabei kann die zweite Spindelpositioniernut in Umfangsrichtung des Gerüstrohrs unterbrochen oder umlaufend ausgebildet sein.The second spindle positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. Alternatively, the second spindle positioning groove can extend in the circumferential direction of the scaffold tube. In this case, the second spindle positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
In weiter bevorzugter Ausgestaltung der Erfindung weist der Spindelaufnahmeabschnitt eine dritte Spindelpositioniernut auf. Die dritte Spindelpositioniernut ist axial weiter von den ersten Spindelpositioniernut beabstandet als die zweite Spindelpositioniernut. Die dritte Spindelpositioniernut verringert den Innendurchmesser des Gerüstrohrs. Durch die dritte Spindelpositioniernut wird die Ausrichtung, insbesondere die Zentrierung, der Gewindespindel im Gerüstrohr weiter verbessert.In a further preferred embodiment of the invention, the spindle receiving section has a third spindle positioning groove. The third spindle positioning groove is axially further spaced from the first spindle positioning groove than the second spindle positioning groove. The third spindle positioning groove reduces the inner diameter of the scaffold tube. The alignment, in particular the centering, of the threaded spindle in the scaffolding tube is further improved by the third spindle positioning groove.
Die dritte Spindelpositioniernut kann sich parallel zur Längsachse des Gerüstrohrs erstrecken. Dabei sind vorzugsweise zumindest drei, über den Umfang des Gerüstrohrs verteilte, Nuten zur Ausrichtung der Gewindespindel vorgesehen. Alternativ dazu kann sich die dritte Spindelpositioniernut in Umfangsrichtung des Gerüstrohrs erstrecken. Die dritte Spindelpositioniernut kann dabei in Umfangsrichtung des Gerüstrohrs unterbrochen oder umlaufend ausgebildet sein. Vorzugsweise ist die dritte Spindelpositioniernut axial weniger weit von der zweiten Spindelpositioniernut beabstandet als die zweite Spindelpositioniernut von der ersten Spindelpositioniernut.The third spindle positioning groove can extend parallel to the longitudinal axis of the scaffold tube. There are preferably at least three over the Grooves distributed around the scaffold tube are provided for aligning the threaded spindle. Alternatively, the third spindle positioning groove can extend in the circumferential direction of the scaffold tube. The third spindle positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially. The third spindle positioning groove is preferably less spaced axially from the second spindle positioning groove than the second spindle positioning groove is spaced from the first spindle positioning groove.
Die zweite Spindelpositioniernut verringert den Innendurchmesser des Gerüstrohrs genauso weit wie die erste Spindelpositioniernut. Die dritte Spindelpositioniernut kann ebenso den Innendurchmesser des Gerüstrohrs verringern. Das radiale Spiel der Gewindespindel im Gerüstrohr wird hierdurch signifikant reduziert, wobei die Gewindespindel dennoch leicht in das Gerüstrohr einführbar bleibt. Das Gerüstrohr kann an seinem zweiten axialen Gerüstrohrende, das dem ersten axialen Gerüstrohrende gegenüberliegt, einen Zapfenaufnahmeabschnitt aufweisen, in den ein Zapfen eines weiteren Gerüstelements einführbar ist. Der Zapfenaufnahmeabschnitt kann eine erste Zapfenpositioniernut aufweisen, die den Innendurchmesser des Gerüstrohrs verringert. Durch die erste Zapfenpositioniernut wird das Gerüstrohr im Bereich des Zapfenaufnahmeabschnitts mechanisch verstärkt.The second spindle positioning groove reduces the inner diameter of the scaffolding tube just as much as the first spindle positioning groove. The third spindle positioning groove can also reduce the inner diameter of the scaffold tube. The radial play of the threaded spindle in the scaffold tube is thereby significantly reduced, the threaded spindle nevertheless remaining easy to insert into the scaffold tube. The scaffold tube can have a pin receiving section at its second axial scaffold tube end, which is opposite the first axial scaffold tube end, into which a pin of a further scaffold element can be inserted. The pin receiving section can have a first pin positioning groove which reduces the inner diameter of the scaffold tube. The scaffold tube is mechanically reinforced in the area of the pin receiving section by the first pin positioning groove.
Die erste Zapfenpositioniernut kann sich parallel zur Längsachse des Gerüstrohrs erstrecken. Dabei sind vorzugsweise zumindest drei, über den Umfang des Gerüstrohrs verteilte, Nuten zur Ausrichtung der Gewindespindel vorgesehen. Alternativ dazu kann sich die erste Zapfenpositioniernut in Umfangsrichtung des Gerüstrohrs erstrecken. Die erste Zapfenpositioniernut kann dabei in Umfangsrichtung des Gerüstrohrs unterbrochen oder umlaufend ausgebildet sein.The first pin positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. Alternatively, the first pin positioning groove can extend in the circumferential direction of the scaffold tube. The The first pin positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
Vorzugsweise ist der axiale Abstand der ersten Zapfenpositioniernut vom zweiten axialen Gerüstrohrende kleiner als der Innendurchmesser der ersten Zapfenpositioniernut.The axial distance between the first pin positioning groove and the second axial scaffold tube end is preferably smaller than the inner diameter of the first pin positioning groove.
Weiter bevorzugt weist der Zapfenaufnahmeabschnitt eine zweite Zapfenpositioniernut auf, die axial von der ersten Zapfenpositioniernut beabstandet ist und den Innendurchmesser des Gerüstrohrs verringert. Der Zapfen eines weiteren Gerüstelements wird dadurch an zwei axial voneinander beabstandeten Zapfenpositioniernuten im Zapfenaufnahmeabschnitt zentriert.More preferably, the pin receiving section has a second pin positioning groove which is axially spaced from the first pin positioning groove and which reduces the inside diameter of the scaffold tube. The pin of a further framework element is thereby centered on two pin positioning grooves that are axially spaced from one another in the pin receiving section.
Die zweite Zapfenpositioniernut kann sich parallel zur Längsachse des Gerüstrohrs erstrecken. Dabei sind vorzugsweise zumindest drei, über den Umfang des Gerüstrohrs verteilte, Nuten zur Ausrichtung der Gewindespindel vorgesehen. Alternativ dazu kann sich die zweite Zapfenpositioniernut in Umfangsrichtung des Gerüstrohrs erstrecken. Die zweite Zapfenpositioniernut kann dabei in Umfangsrichtung des Gerüstrohrs unterbrochen oder umlaufend ausgebildet sein.The second pin positioning groove can extend parallel to the longitudinal axis of the scaffold tube. At least three grooves distributed over the circumference of the scaffolding tube are preferably provided for aligning the threaded spindle. Alternatively, the second pin positioning groove can extend in the circumferential direction of the scaffold tube. The second pin positioning groove can be interrupted in the circumferential direction of the scaffolding tube or formed circumferentially.
In weiter bevorzugter Ausgestaltung des Gerüstelements weist das Gerüstrohr einen Knotenpunkt auf, an dem
- a) ein Querriegel des Gerüstelements mit dem Gerüstrohr verbunden ist, oder
- b) eine Koppelstelle zur Anbindung eines Querriegels ausgebildet ist, wobei das Gerüstrohr im Bereich des Knotenpunkts eine erste Versteifungsnut aufweist. Die erste Versteifungsnut ist dabei weniger als 15 cm in einer ersten axialen Richtung vom Knotenpunkt beabstandet und verringert den Innendurchmesser des Gerüstrohrs oder vergrößert den Außendurchmesser des Gerüstrohrs. Durch die erste Versteifungsnut wird das Gerüstelement in einem Bereich, in dem es im aufgebauten Zustand besonders stark belastet ist, nämlich im Bereich des Knotenpunkts, verstärkt. Das Gerüstrohr bietet durch die erste Versteifungsnut ein höheres Widerstands- und Trägheitsmoment im Bereich des Druckpunktes des Querriegels. Die Koppelstelle kann in Form einer Rosette zur Anbindung eines Querriegels ausgebildet sein.
- a) a crossbar of the scaffolding element is connected to the scaffolding tube, or
- b) a coupling point for connecting a crossbar is formed, the scaffolding tube having a first stiffening groove in the area of the junction. The first stiffening groove is less than 15 cm away from the node in a first axial direction and reduces the inside diameter of the scaffold tube or increases the outside diameter of the scaffold tube. The framework element is reinforced by the first stiffening groove in an area in which it is particularly heavily loaded in the assembled state, namely in the area of the junction. Thanks to the first stiffening groove, the scaffolding tube offers a higher moment of resistance and moment of inertia in the area of the pressure point of the crossbar. The coupling point can be designed in the form of a rosette for connecting a cross bar.
Weiter bevorzugt weist das Gerüstrohr im Bereich des Knotenpunkts eine weitere Versteifungsnut auf, die weniger als 15 cm in einer zweiten axialen Richtung vom Knotenpunkt beabstandet ist und den Innendurchmesser des Gerüstrohrs verringert oder den Außendurchmesser des Gerüstrohrs vergrößert. Die zweite axiale Richtung ist dabei der ersten axialen Richtung entgegengesetzt. Mit anderen Worten wird durch eine weitere Versteifungsnut der Knotenpunkt in beide axiale Richtungen durch jeweils eine Versteifungsnut verstärkt.More preferably, the scaffold tube has a further stiffening groove in the area of the junction, which is spaced less than 15 cm from the junction in a second axial direction and reduces the inner diameter of the scaffold tube or increases the outer diameter of the scaffold tube. The second axial direction is opposite to the first axial direction. In other words, the nodal point is reinforced by a further stiffening groove in both axial directions by a stiffening groove in each case.
Die Spindelpositioniernut(-en) und die Versteifungsnut(-en) verringern den Innendurchmesser des Gerüstrohrs vorzugsweise in gleichem Maß.The spindle positioning groove (s) and the stiffening groove (s) preferably reduce the inside diameter of the scaffold tube to the same extent.
Die erfindungsgemäße Aufgabe wird weiterhin gelöst durch ein Baugerüst mit einem zuvor beschriebenen Gerüstelement.The object of the invention is also achieved by a scaffolding with a scaffolding element described above.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden detaillierten Beschreibung mehrerer Ausführungsbeispiele der Erfindung, aus den Patentansprüchen sowie anhand der Figuren der Zeichnung, die erfindungswesentliche Einzelheiten zeigt.Further features and advantages of the invention emerge from the following detailed description of several exemplary embodiments of the invention, from the patent claims and from the figures of the drawing, which shows details essential to the invention.
Die in der Zeichnung gezeigten Merkmale sind derart dargestellt, dass die erfindungsgemäßen Besonderheiten deutlich sichtbar gemacht werden können. Die verschiedenen Merkmale können je einzeln für sich oder zu mehreren in beliebigen Kombinationen bei Varianten der Erfindung verwirklicht sein.The features shown in the drawing are shown in such a way that the special features according to the invention can be made clearly visible. The various features can each be implemented individually or collectively in any combination in variants of the invention.
Es zeigen:
- Figur 1
- eine Schnittansicht eines Gerüstelements aus dem Stand der Technik;
- Figur 2
- eine Schnittansicht eines erfindungsgemäßen Gerüstelements;
- Figur 3
- eine Draufsicht auf einen Knotenpunkt eines erfindungsgemäßen Gerüstelements; und
- Figur 4
- eine perspektivische Ansicht eines erfindungsgemäßen Baugerüsts.
- Figure 1
- a sectional view of a framework element from the prior art;
- Figure 2
- a sectional view of a scaffold element according to the invention;
- Figure 3
- a plan view of a node of a scaffold element according to the invention; and
- Figure 4
- a perspective view of a scaffolding according to the invention.
Der Spindelaufnahmeabschnitt 14 weist in axialer Richtung durchgehend denselben Innendurchmesser auf. Die Gewindespindel 16, die sich über die Spindelmutter 20 am Gerüstrohr 12 axial abstützt, weist eine Schiefstellung um den Winkel β auf. Genauer gesagt ist die Längsachse 23a der Gewindespindel 16 um den Winkel β gegenüber der Längsachse 23b des Gerüstrohrs 12 geneigt. Der Winkel β beträgt dabei typischerweise 1,29°.The
In
Das Gerüstrohr 12 weist somit ein erstes axiales Gerüstrohrende 34 auf, in das die Gewindespindel 16 einführbar ist. Weiterhin weist das Gerüstrohr 12 ein zweites axiales Gerüstrohrende 36 auf, in das der Zapfen 32 des weiteren Gerüstelements 30 einführbar ist. Am zweiten axialen Gerüstrohrende 36 ist ein Zapfenaufnahmeabschnitt 38 zur Aufnahme des Zapfens 32 im Gerüstrohr 12 ausgebildet. Eine mechanische Verstärkung des Zapfenaufnahmeabschnitts 38 sowie eine verbesserte Zentrierung des Zapfens 32 erfolgt durch eine erste Zapfenpositioniernut 40 und eine zweite Zapfenpositioniernut 42. The
Aus
Das Gerüstrohr 12 weist eine weitere Versteifungsnut 64 auf. Die weitere Versteifungsnut 64 ist in einer zweiten axialen Richtung 66 von der Koppelstelle 46 beabstandet. Die erste axiale Richtung 56 und die zweite axiale Richtung 66 verlaufen dabei entlang der Längsachse 23b des Gerüstrohrs 12, wobei die zweite axiale Richtung 66 der ersten axialen Richtung 56 entgegengesetzt ist. Durch die weitere Versteifungsnut 64 können Einstecklaschen 68, 70 der Querriegel 48, 50 mechanisch besonders fest an das Gerüstrohr 12 angepresst werden, ohne dass es zu einer plastischen Verformung des Gerüstrohrs 12 bei einer Belastung der Querriegel 48 und/oder 50 kommt.The
Alternativ oder zusätzlich zu den beschriebenen Versteifungsnuten 54, 58, 64 kann das Gerüstelement 10 zwischen axial benachbarten Koppelstellen, von denen in
Unter Vornahme einer Zusammenschau aller Figuren der Zeichnung betrifft die Erfindung zusammenfassend ein Gerüstelement 10 mit einem Gerüstrohr 12, in das einenends eine Gewindespindel 16 teilweise eingeführt ist. Im Gerüstrohr 12 wird die Gewindespindel 16 von zumindest einer Spindelpositioniernut 24, 26, 28, insbesondere mehreren Spindelpositioniernuten 24, 26, 28, geführt. Durch die Spindelpositioniernut(-en) 24, 26, 28 wird das Gerüstrohr 12 im Bereich der im Gerüstrohr 12 aufgenommenen Gewindespindel 16 mechanisch verstärkt. Gleichzeitig wird die maximale Neigung der Gewindespindel 16 im Gerüstrohr 12 durch die Spindelpositioniernut(-en) 24, 26, 28 reduziert. Insgesamt kann das Gerüstelement 10 hierdurch deutlich stärker in Richtung der Längsachse 23b des Gerüstrohrs 12 mit einer Kraft beaufschlagt werden. Das Gerüstrohr 12 kann anderenends zumindest eine Zapfenpositioniernut 40, 42, insbesondere mehrere Zapfenpositioniernuten 40, 42, aufweisen. Alternativ oder zusätzlich dazu kann das Gerüstrohr 12 im Bereich eines Knotenpunkts 44 zumindest eine Versteifungsnut 54, 58, 64 aufweisen. Alternativ oder zusätzlich dazu kann das Gerüstrohr 12 zwischen zwei Knotenpunkten 44 zumindest eine Zusatzversteifungsnut 72 aufweisen.Taking all the figures of the drawing together, the invention relates in summary to a
Claims (12)
- Frame element (10) for a scaffold (74), wherein the frame element (10) comprises the following:a) a support head (76) having a threaded spindle (16);b) a frame tube (12) that may be mounted vertically in the scaffold (74), said frame tube having a spindle receiving section (14) on a first axial frame tube end (34), wherein the threaded spindle (16) is in part inserted into the spindle receiving section (14);c) a spindle nut (20) that is mounted on the threaded spindle (16), wherein the support head (76) in the mounted state of the frame element (10) introduces its vertical load into the frame tube (12) via the threaded spindle (16);wherein the spindle receiving section (14) comprises a first spindle positioning groove (24) that reduces the inner diameter of the frame tube (12),
characterised in that
the spindle receiving section (14) comprises a second spindle positioning groove (26) that is spaced axially from the first spindle positioning groove (24) and reduces the inner diameter of the frame tube (12), wherein the second spindle positioning groove (26) reduces the inner diameter of the frame tube (12) precisely as far as the first spindle positioning groove (24). - Frame element according to claim 1, in which the first spindle positioning groove (24) radially centres the threaded spindle (16) in the frame tube (12) in such a manner that the longitudinal axis (23a) of the threaded spindle (16) is inclined by the angle β with respect to the longitudinal axis (23b) of the frame pipe (12), wherein the angle β is less than 1°.
- Frame element according to claim 1 or 2, in which the first spindle positioning groove (24) extends in the circumferential direction of the frame pipe (12), wherein the first spindle positioning groove (24) is interrupted in the circumferential direction of the frame tube (12) or is embodied in a circumferential manner.
- Frame element according to any one of the preceding claims, in which the axial distance of the first spindle positioning groove (24) from the first axial frame tube end (34) is smaller than the inner diameter of the spindle receiving section (14).
- Frame element according to any one of the preceding claims, in which the spindle receiving section (14) comprises a third spindle positioning groove (28) that is spaced axially further from the first spindle positioning groove (24) than the second spindle positioning groove (26) and the inner diameter of the frame pipe (12).
- Frame element according to claim 5, in which the third spindle positioning groove (28) reduces the inner diameter of the frame tube (12) precisely as far as the first spindle positioning groove (24).
- Frame element according to claim 5 or 6, in which the third spindle positioning groove (28) is spaced axially closer to the second spindle positioning groove (26) than the second spindle positioning groove (26) is spaced from the first spindle positioning groove (24).
- Frame element according to any one of the preceding claims, in which the frame tube (12) comprises on its second axial frame tube end (36) a spigot receiving section (38) into which it is possible to insert a spigot (32) of a further frame element (30), wherein the spigot receiving section (38) comprises a first spigot positioning groove (40) that reduces the inner diameter of the frame tube (12).
- Frame element according to claim 8, in which the spigot receiving section (38) comprises a second spigot positioning groove (42) that is spaced axially from the first spigot positioning groove (40) and reduces the inner diameter of the frame tube (12).
- Frame element according to any one of the preceding claims, in which the frame tube (12) comprises a junction site (44) at whicha) a crossbeam (48, 50) of the frame element (10) is connected to the frame tube (12) orb) a coupling site (46), in particular in the form of a rosette, is embodied so as to connect a cross beam (48, 50),wherein the frame tube (12) comprises a first reinforcing groove (54) that is spaced less than 15 cm in a first axial direction (56) from the junction site (44) andi. reduces the inner diameter of the frame tube (12) orii. enlarges the outer diameter of the frame tube (12).
- Frame element according to claim 10, in which the frame tube (12) comprises a further reinforcing groove (64) in the region of the junction site (44), said reinforcing groove being spaced less than 15 cm in a second axial direction (66) opposite the first axial direction (56) from the junction site (44) andi. reduces the inner diameter of the frame tube (12) orii. enlarges the outer diameter of the frame tube (12).
- Scaffold (74) having a frame element (10) according to any one of the preceding claims.
Applications Claiming Priority (2)
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DE102016204694.2A DE102016204694A1 (en) | 2016-03-22 | 2016-03-22 | Scaffolding element with a carrier head and scaffolding with such a scaffolding element |
PCT/EP2017/054773 WO2017162415A1 (en) | 2016-03-22 | 2017-03-01 | Frame element with a support head, and building scaffold comprising such a frame element |
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EP3433448A1 EP3433448A1 (en) | 2019-01-30 |
EP3433448B1 true EP3433448B1 (en) | 2020-09-02 |
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EP17708472.0A Active EP3433448B1 (en) | 2016-03-22 | 2017-03-01 | Frame element with a support head, and building scaffold comprising such a frame element |
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US (1) | US20200291666A1 (en) |
EP (1) | EP3433448B1 (en) |
AR (1) | AR107873A1 (en) |
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CN108343233B (en) * | 2018-02-07 | 2021-04-16 | 中国核电工程有限公司 | Reusable floor construction rapid supporting structure with one-time introduction equipment |
CN112049388A (en) * | 2020-09-01 | 2020-12-08 | 上海家树建筑工程有限公司 | Socket type disc buckle type scaffold |
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PL3433448T3 (en) | 2021-02-22 |
ES2835076T3 (en) | 2021-06-21 |
DE102016204694A1 (en) | 2017-09-28 |
EP3433448A1 (en) | 2019-01-30 |
US20200291666A1 (en) | 2020-09-17 |
AR107873A1 (en) | 2018-06-13 |
AU2017236137A1 (en) | 2018-09-13 |
CA3016937A1 (en) | 2017-09-28 |
CA3016937C (en) | 2024-06-18 |
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