EP4366895B1 - Transport and winding aid for single-axis reinforcing steel bar mats, and production method - Google Patents
Transport and winding aid for single-axis reinforcing steel bar mats, and production method Download PDFInfo
- Publication number
- EP4366895B1 EP4366895B1 EP22729075.6A EP22729075A EP4366895B1 EP 4366895 B1 EP4366895 B1 EP 4366895B1 EP 22729075 A EP22729075 A EP 22729075A EP 4366895 B1 EP4366895 B1 EP 4366895B1
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- European Patent Office
- Prior art keywords
- region
- reinforcing steel
- steel bar
- transport
- rolling
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F45/00—Wire-working in the manufacture of other particular articles
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
Definitions
- the present invention relates to a transport and rolling aid for a reinforcing steel bar mat, a method for transporting reinforcing steel bar mats and a manufacturing method for producing the transport and rolling aid.
- the individual, parallel reinforcing steel bars of a uniaxial reinforcing steel bar mat are connected to each other with flexible retaining elements, such as thin wire or a flat metal strip, so that they can be easily rolled up into a roll during production and easily rolled out again on a construction site.
- the reinforcing steel bars of a mat which are individually calculated in terms of length, diameter and axial position and arranged in the mat, easily reach weights in the tons range. Since several such rolls are usually stacked on top of each other and transported to a site, the layer of rolls on the bottom during transport is subjected to high pressures of up to several tons and may become so severely deformed that unrolling is no longer possible or only possible with great difficulty.
- CA 766 870 A a simply wound mat with securing elements.
- the invention presented serves to enable the rapid production of reinforcing steel bar mats.
- the invention presented serves to provide a device for the safe transport of reinforcing steel bar mats.
- a transport and winding aid for transporting single-axis reinforcing steel mesh.
- the transport and winding aid comprises a first round support area, a second round support area and a connecting area between the two, which axially spaced, i.e. along a longitudinal axis of the connection region.
- the first round support region has a first edge region and the second round support region has a second edge region.
- the longitudinal axis of the connection region is offset parallel to a straight line connecting the first edge region and the second edge region.
- the connection region forms a first clamping region with the first support region, which is delimited in particular downwards by the connection region and in particular upwards by the first support region.
- connection region forms a second clamping region with the second support region, which is delimited in particular downwards by the connection region and in particular upwards by the second support region, so that the first clamping region and the second clamping region together form a receptacle in which a reinforcing steel bar of a uniaxial reinforcing steel bar mat can be reversibly clamped.
- an edge region is understood to mean an area delimited by a circumference of a support region.
- the invention defines a support area as a round section of the proposed transport and winding aid that stabilizes or supports a reinforcing steel bar mat wrapped around the transport and winding aid. Accordingly, a support area counteracts a force acting on the reinforcing steel bar mat from an environment, such as the weight of stacked rolls, with a counterforce that prevents deformation of the reinforcing steel bar mat.
- the invention understands a connecting area as a section of the presented transport and rolling aid, which is in particular at least partially elongated or straight and the various connects or spaced apart the support regions provided according to the invention. Accordingly, the connecting region is connected to both the first support element and the second support element. In particular, the connecting region merges into the first support element on its first side and into the second support element on its second side, opposite the first side.
- the transport and winding aid according to the invention is based on the principle that it can be reversibly arranged, in particular clamped, to a reinforcing steel bar mat, in particular a first reinforcing steel bar of a reinforcing steel bar mat.
- the transport and winding aid according to the invention provides a receptacle into which the reinforcing steel bar can be clamped or is to be clamped.
- the receptacle of the transport and winding aid according to the invention is formed by an interaction of the connecting region with the support regions, so that the receptacle is limited in particular at the top by the support regions and in particular at the bottom by the connecting region.
- a reinforcing steel bar to be clamped to the transport and winding aid is inserted into the receptacle and is in contact with both the connecting region and the support regions, so that a frictional or clamping force is built up when the reinforcing steel bar is inserted into the receptacle.
- This clamping force is generated by the support regions pressing the reinforcing steel bar onto the connecting region due to their weight and their rigid shape, or the reinforcing steel bar pressing the support regions away from the connecting region.
- a reinforcing steel bar mat can easily be wound around the transport and winding aid according to the invention, so that a roll is formed, in the roll eye of which the transport and winding aid supports the roll in a dimensionally stable manner.
- a weight of the reinforcing steel bar mat acts on the support areas, so that the friction or clamping force acting on a reinforcing steel bar arranged in the holder of the transport and winding aid is maximized and the reinforcing steel bar or reinforcing steel bar mat is held particularly securely on the transport and winding aid. Accordingly, a reinforcing steel bar can be easily inserted into the holder at the beginning of a winding process in which a reinforcing steel bar mat is wound around the transport and winding aid. Analogously, the reinforcing steel bar can be easily removed from the holder with relatively little force after an unwinding process in which the reinforcing steel bar mat is unwound from the transport and winding aid.
- the receptacle of the transport and winding aid according to the invention is shaped such that a reinforcing steel bar inserted into the receptacle is clamped between the connecting area and the support areas. Therefore, welding of the reinforcing steel bar to the transport and winding aid is not necessary, so that the transport and winding aid is essentially reusable after the reinforcing steel bar has been removed from the receptacle.
- the connecting area at its first end extends in a first curve into the first support area and the connecting area at its second end merges into the second support area in a second curve, wherein the first curve delimits the first clamping area facing away from the connecting area, and the first clamping area is accessible on a side opposite the first curve for inserting a reinforcing steel bar, and wherein the second curve delimits the second clamping area facing away from the connecting area, and the second clamping area is accessible on a side opposite the second curve for inserting a reinforcing steel bar.
- an arcuate transition between the connecting area and respective support areas of the transport and winding aid according to the invention enables the support area and the connecting area to move away from each other and accordingly release a reinforcing steel bar inserted into the receptacle between the support area and the connecting area when the transport and winding aid is developed by a reinforcing steel bar mat and is accordingly relieved of its weight.
- the curved transition between the connecting area and the respective support areas of the transport and rolling aid according to the invention can be designed to be resilient or elastic in order to to enable relative movement between the connecting area and the support area.
- an arcuate transition between the connecting area and the respective support areas of the transport and winding aid according to the invention enables a particularly effective flow of force between the support areas and the connecting area, so that the transport and winding aid is particularly resilient.
- the arcuate transition between the connecting region and respective support regions of the transport and rolling aid according to the invention can be bent in the direction of an axis running orthogonal to the connecting region, so that the transition runs upwards from the connecting region in the direction of a respective support region.
- the transport and winding aid is designed as a single piece.
- the transport and winding aid according to the invention can be formed from a single piece of metal, in particular a steel rod or even a reinforcing steel bar.
- the single-piece design of the transport and winding aid according to the invention makes it particularly resilient, as brittle connection areas for connecting multiple metal parts are avoided.
- the connecting region is U-shaped with a base, a first leg, and a second leg, wherein the base comprises the longitudinal axis, wherein the first leg and the second leg are opposite one another, and wherein the first leg merges into the first support region in a first curve, and the second leg merges into the second support region at its second end in a second curve.
- the first curve delimits the first clamping region facing away from or opposite the connecting region, so that the first clamping area is accessible on a side opposite the first arch for inserting a reinforcing steel bar.
- the second arch delimits the second clamping area facing away from or opposite the connecting area, so that the second clamping area is accessible on a side opposite the second arch for inserting a reinforcing steel bar.
- a U-shaped connecting area serves both as a base for placing the transport and winding aid on a floor surface and for the compact and stable provision of clamping areas for receiving the transport and winding aid according to the invention.
- the U-shaped area can also be used as a handle for transporting the transport and winding aid according to the invention.
- a base of a U-shaped area can also be used as a marking area for arranging markings, such as identification codes, in particular a QR code, but it is preferable to apply such a marking at a different location, as explained further below.
- the base can optionally be flattened at least in some areas in order to provide a marking area into which, for example, an identification code can be stamped.
- the first round support region and/or the second round support region are at least partially spiral and/or circular and/or elliptical and have a circumferential angle of at least 360°, preferably of at least 540°, most preferably of 720°, beginning at a respective transition to the connecting region.
- a spiral support region i.e. a support region comprising a plurality of windings, is, on the one hand, more stable than a single ring due to the plurality of windings and, on the other hand, is axially expandable, so that a spiral support region is particularly resilient. In this case, a load on a spiral support region leads to an axial expansion of the support region.
- a spiral support area is significantly more robust against shear forces than a single ring, since the numerous windings of a spiral support area support or stabilize each other in all directions.
- first clamping region and/or the second clamping region extend in a circumferential angle range of 0° to a maximum of 45°, preferably a maximum of 30°, of the respective support region beginning at a respective transition to the connecting region.
- a reinforcing steel bar mat can be wound around the transport and winding aid to create a roll in which the transport and winding aid sits in the roller eye.
- the support areas spaced along the longitudinal axis of the connection area ensure a stable shape of the roll, even when using particularly long reinforcing steel bar mats with correspondingly long reinforcing steel bars.
- the length of the longitudinal axis or the distance between the support areas of the transport and winding aid according to the invention is selected depending on the length of a reinforcing steel mesh to be transported.
- several transport and winding aids can also be arranged in a row or a Transport and winding aid with many, e.g. 4, 6 or 8 support areas spaced along the longitudinal axis or the straight line.
- the support areas of the transport and rolling aid according to the invention can be aligned orthogonally to the connecting area or the longitudinal axis of the transport and rolling aid, so that a right angle is formed between the longitudinal axis and a respective support area.
- the first round support area and/or the second round support area end in a handle section that lies within the first edge area of the first round support area and/or within the second edge area of the second round support area.
- a handle section that runs, for example, straight within an edge area of a support area, the transport and winding aid can be easily lifted and transported.
- a marking such as a label, in particular a QR code label, can be attached to such a handle section in order to identify, for example, the transport and winding aid and/or a reinforcing steel bar mat arranged on the transport and winding aid.
- the handle section can be flattened at least in some areas, so that For example, a permanent mark can be engraved into the handle section.
- the axial distance between the first round support area and the second round support area is at least large enough to accommodate respective support areas of another transport and winding aid between the first round support area and the second round support area, allowing a plurality of transport and winding aids to be stacked inside one another.
- Stackable transport and winding aids allow for space-saving storage of many transport and winding aids.
- the presented invention relates to a method for rolling up and transporting a uniaxial reinforcing steel bar mat.
- the method comprises an arrangement step in which at least one possible embodiment of the transport and rolling aid according to the invention is pushed over a reinforcing steel bar of a uniaxial reinforcing steel bar mat in such a way that the reinforcing steel bar is reversibly clamped in respective clamping regions of the at least one transport and rolling aid.
- the method comprises a rolling-up step in which the uniaxial reinforcing steel bar mat is wound around the at least one transport and rolling aid to make it transportable.
- the presented transport and rolling aid serves in particular to carry out the presented method for rolling up and transporting a uniaxial reinforcing steel bar mat.
- the at least one transport and winding aid is integrated into a machine for producing the Reinforcing steel bar mat is introduced so that during a manufacturing process for producing the reinforcing steel bar mat, the reinforcing steel bar mat is wound around the at least one transport and winding aid in a continuous process.
- the presented transport and winding aid enables quick and easy arrangement of the transport and winding aid on a reinforcing steel bar mesh, so that the transport and winding aid can be inserted into a machine for producing the reinforcing steel bar mesh during a manufacturing process, in particular with only a very brief interruption of the manufacturing process, if at all. Accordingly, the transport and winding aid and the inventive method for transporting a reinforcing steel bar mesh enable a largely continuous manufacturing process for reinforcing steel bar mesh.
- the invention in a third aspect, relates to a method for producing the transport and winding aid.
- This method comprises a bending process in which, in a first bending step, a first round support region is formed from a piece of metal.
- a first straight part of a connecting region is formed at one end of the first round support region, wherein the first straight part is formed at a distance from the first support region, so that a first clamping region for reversibly clamping a reinforcing steel bar of a reinforcing steel bar mat is formed between the first support region and the first straight part.
- a second round support region is formed.
- a second straight part of the connecting region is formed at one end of the second support region, wherein the second straight part is formed at a distance from the second support region, so that a second clamping area for the reversible clamping of a reinforcing steel bar of a reinforcing steel bar mat, wherein the first straight part and the second straight part are spaced from each other by a longitudinal axis which is displaced parallel to a straight line connecting the first edge area and the second edge area.
- the transport and winding aid is bent from a single piece of metal, and the longitudinal axis is provided by bending one end of the first part and one end of the second part.
- the transport and winding aid is assembled from multiple pieces of metal, and the longitudinal axis is formed by connecting a straight piece of metal to the end of the first part and the end of the second part.
- the presented invention relates to a system comprising a uniaxial reinforcing steel bar mat comprising a plurality of reinforcing steel bars and a transport and winding aid as described above.
- the second bending step and the third bending step can be carried out independently of one another or at different times if the transport and winding aid is assembled from several pieces of metal.
- FIG. 1 A transport and rolling aid 100 is shown.
- it consists of a single piece of metal and comprises a first round support area 101 with a first edge area 103, a second round support area 105 with a second edge area 107, and a connecting area 109.
- the first support region 101 and the second support region 105 are spaced apart from one another along a longitudinal axis 111.
- the longitudinal axis 111 extends parallel to a straight line 113 extending between a center point of the first edge region 103 and a center point of the second edge region 107.
- the connecting region 109 forms together with the first support region 101 a first clamping region 115.
- the first clamping area 115 is in the Fig. 1 perspective shown downwards through the connecting area 109 and to limited at the top by the first support area 101.
- the connecting area 109 forms with the second support area 105 a second clamping area 117, which Fig. 1 is limited downwards by the connecting region 105 and upwards by the second support region 105, so that the first clamping region 115 and the second clamping region 117 together form a receptacle 119 in which a reinforcing steel bar of a reinforcing steel bar mat can be reversibly clamped.
- FIG. 1 It is clearly visible that the first support region 101 and the second support region 105 are spaced apart by the connecting region 109, which in the present case is designed, for example, in a U-shape.
- the distance between the connecting region 109 and the first support region 101 or the second support region 105 is selected, for example, such that it corresponds to a diameter of a reinforcing steel bar, so that the reinforcing steel bar can be easily inserted into the receptacle 119 in an unloaded rest position of the transport and winding aid 100.
- the first support area 101 and the second support area 105 move in the direction of the connecting area 109 and clamp a reinforcing steel bar arranged between the support areas 101 and 105 by at least partially transferring the weight force acting on the transport and winding aid 100 to the reinforcing steel bar.
- Reinforcing steel bar stabilizing the transport and winding aid 100 when it is loaded with weight, since the reinforcing steel bar only allows a limited movement of the first support area 101 and the second support area 105 in the direction of the connecting area 109.
- first support area 101 and the second support area 105 are designed spirally, so that they extend along or parallel to the longitudinal axis 111 when weight is applied to them.
- the support areas 101 and 105 essentially retain their round shape, so that deformation of a reinforcing steel bar mat wound onto the transport and winding aid 100, which would result in the formation of corners or edges that hinder easy unrolling or unwinding of the reinforcing steel bar mat, is avoided.
- This spiral shape has the additional advantage that the rolled-up reinforcing steel bars are supported over an even larger area of their axial length than they would be without the spiral shape due to the axial distance between the two support areas.
- a circumferential angle of approximately 450° is provided for the support area 101, and on the left side one of 720° for the support area 105.
- the second support area 105 has a handle section 301 that extends straight within the second edge area 107 of the second support area 105.
- the straight handle section 301 is suitable for carrying the transport and rolling aid 100 and/or for arranging labels, such as QR labels.
- Fig. 3 also shows the second clamping region 117, which is formed and delimited by the second support region 105 and the connecting region 109. This extends at a circumferential angle of the support region 105 of a maximum of 45°.
- FIG. 4 A method 400 for rolling up reinforcing steel bar mats is shown.
- the method is preceded by the production of a start of a uniaxial reinforcing steel bar mat in a mat maker, in which a few reinforcing steel bars have already been connected to a plurality of metal bands or wires that connect them and are spaced parallel from one another.
- the method 400 comprises an arrangement step 401, in which a number of transport and rolling aids, such as a number of transport and rolling aids 100 according to Fig. 1 , are pushed over a reinforcing steel bar of a uniaxial reinforcing steel bar mat, so that it is reversibly clamped in the respective clamping areas of the transport and winding aids used.
- the transport method 400 includes a winding step 403, in which the reinforcing steel bar mat is wound around the number of transport and winding aids 100 in order to enable the rolled-up reinforcing steel bar mat to be transported with as little damage as possible.
- FIG. 5 A manufacturing method 500 for producing a transport and winding aid, such as the transport and winding aid 100, for transporting reinforcing steel bar mats is shown.
- the manufacturing method 500 comprises a bending process 501, in which at least one metal piece is bent.
- a first bending step 503 of the bending process 501 a first round support area is formed from a metal piece.
- a first straight part of a connecting area is formed at one end of the first round support area, wherein the first straight part is formed at a distance from the first support area, so that a first clamping area for reversibly clamping a reinforcing steel bar of a reinforcing steel bar mat is created between the first support area and the first straight part.
- a third bending step 507 a second round support area formed.
- a second straight part of the connecting region is formed at one end of the second support region, wherein the second straight part is formed at a distance from the second support region, so that a second clamping region for reversibly clamping a reinforcing steel bar of a reinforcing steel bar mat is created between the second support region and the second straight part, wherein the first straight part and the second straight part are spaced from one another by a longitudinal axis which is displaced parallel to a straight line connecting the first edge region and the second edge region.
- the bending process 501 can be performed with a single piece of metal, so that the longitudinal axis is provided by bending one end of the first part and one end of the second part.
- the manufacturing method can include a joining step 511, so that the transport and winding aid is assembled from multiple pieces of metal, and the longitudinal axis is formed by joining, in particular welding, a straight piece of metal to the end of the first part and the end of the second part.
- the reinforcing steel bar mat 600 comprises a plurality of reinforcing steel bars 601 and a transport and winding aid, such as the transport and winding aid 100 according to Fig. 1 .
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- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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- Storage Of Web-Like Or Filamentary Materials (AREA)
- Reinforcement Elements For Buildings (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Description
Die vorliegende Erfindung betrifft eine Transport- und Aufrollhilfe für eine Bewehrungsstahlstabmatte, ein Verfahren zum Transport von Bewehrungsstahlstabmatten und ein Herstellungsverfahren zur Herstellung der Transport- und Aufrollhilfe.The present invention relates to a transport and rolling aid for a reinforcing steel bar mat, a method for transporting reinforcing steel bar mats and a manufacturing method for producing the transport and rolling aid.
Die einzelnen, zueinander parallelen Bewehrungsstahlstäbe einer einachsigen Bewehrungsstahlstabmatte sind untereinander mit flexiblen Halteelementen, wie bspw. dünnem Draht oder einem flachen Metallband verbunden, so dass sie im Fertigungsprozess leicht zu einer Rolle zusammengerollt bzw. auf einer Baustelle leicht wieder ausgerollt werden können. Die insbesondere individuell in Länge, Durchmesser und axialer Lage berechneten und in der Matte angeordneten Bewehrungsstahlstäbe einer Matte erreichen problemlos Gewichte im Tonnenbereich. Da in der Regel mehrere solcher Rollen aufeinandergestapelt zu einem Einsatzort transportiert werden, wird die im Transport zuunterst liegende Rollenlage mit hohen Drücken von bis zu mehreren Tonnen belastet und ggf. so stark verformt, dass ein Ausrollen nicht mehr oder nur noch sehr schwer möglich ist.The individual, parallel reinforcing steel bars of a uniaxial reinforcing steel bar mat are connected to each other with flexible retaining elements, such as thin wire or a flat metal strip, so that they can be easily rolled up into a roll during production and easily rolled out again on a construction site. The reinforcing steel bars of a mat, which are individually calculated in terms of length, diameter and axial position and arranged in the mat, easily reach weights in the tons range. Since several such rolls are usually stacked on top of each other and transported to a site, the layer of rolls on the bottom during transport is subjected to high pressures of up to several tons and may become so severely deformed that unrolling is no longer possible or only possible with great difficulty.
Es ist daher bekannt, eine Verformung der Bewehrungsstahlstabmatte beim Transport zu verhindern, indem sie auf mehrere, über die gesamte Rollenbreite axial zueinander beabstandete kreisrunde Metallringe aufgerollt wird. Hierbei werden diese Metallringe manuell an den oder einen der ersten Bewehrungsstahlstäbe einer zukünftigen einachsigen Bewehrungsstahlstabrolle angeschweißt. Dies bedingt einen hohen Zeitaufwand und führt dazu, dass der in der Regel vollautomatisch arbeitende Mattenfertiger in dieser Zeit stillsteht. Nachteilig ist weiterhin, dass diese Metallringe bei einer Scherkraftbelastung umkippen, so dass die gewünschte stabilisierende Wirkung verloren geht und eine Verformung beim Transport auftreten kann.It is therefore known to prevent deformation of the reinforcing steel mesh during transport by winding it onto several circular metal rings spaced axially apart across the entire width of the roll. These metal rings are manually welded to the first reinforcing steel bars of a future single-axis reinforcing steel roll. This is time-consuming and results in the mesh manufacturer, which is usually fully automated, being at a standstill during this time. Another disadvantage is that these metal rings tip over under shear load, so that the desired stabilizing effect is lost and deformation may occur during transport.
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Die vorgestellte Erfindung dient dazu, eine schnelle Herstellung von Bewehrungsstahlstabmatten zu ermöglichen. Insbesondere dient die vorgestellte Erfindung dazu, eine Vorrichtung für einen sicheren Transport von Bewehrungsstahlstabmatten bereitzustellen.The invention presented serves to enable the rapid production of reinforcing steel bar mats. In particular, the invention presented serves to provide a device for the safe transport of reinforcing steel bar mats.
Gemäß einem ersten Aspekt der Erfindung wird eine Transport- und Aufrollhilfe für einen Transport von einachsigen Bewehrungsstahlstabmatten vorgestellt. Die Transport- und Aufrollhilfe umfasst einen ersten runden Stützbereich, einen zweiten runden Stützbereich und einen Verbindungsbereich zwischen beiden, der diese axial beabstandet, d.h. entlang einer Längsachse des Verbindungsbereichs. Der erste runde Stützbereich weist einen ersten Randbereich auf und der zweite runde Stützbereich weist einen zweiten Randbereich auf. Die Längsachse des Verbindungsbereichs ist zu einer den ersten Randbereich und den zweiten Randbereich verbindenden Gerade parallelverschoben. Der Verbindungsbereich bildet mit dem ersten Stützbereich einen ersten Klemmbereich, der insbesondere nach unten durch den Verbindungsbereich und insbesondere nach oben durch den ersten Stützbereich begrenzt ist. Weiterhin bildet der Verbindungsbereich mit dem zweiten Stützbereich einen zweiten Klemmbereich, der insbesondere nach unten durch den Verbindungsbereich und insbesondere nach oben durch den zweiten Stützbereich begrenzt ist, so dass der erste Klemmbereich und der zweite Klemmbereich zusammen eine Aufnahme bilden, in der ein Bewehrungsstahlstab einer einachsigen Bewehrungsstahlstabmatte reversibel einklemmbar ist.According to a first aspect of the invention, a transport and winding aid for transporting single-axis reinforcing steel mesh is presented. The transport and winding aid comprises a first round support area, a second round support area and a connecting area between the two, which axially spaced, i.e. along a longitudinal axis of the connection region. The first round support region has a first edge region and the second round support region has a second edge region. The longitudinal axis of the connection region is offset parallel to a straight line connecting the first edge region and the second edge region. The connection region forms a first clamping region with the first support region, which is delimited in particular downwards by the connection region and in particular upwards by the first support region. Furthermore, the connection region forms a second clamping region with the second support region, which is delimited in particular downwards by the connection region and in particular upwards by the second support region, so that the first clamping region and the second clamping region together form a receptacle in which a reinforcing steel bar of a uniaxial reinforcing steel bar mat can be reversibly clamped.
Unter einem Randbereich ist im Kontext der Erfindung eine durch einen Umfang eines Stützbereichs begrenzte Fläche zu verstehen.In the context of the invention, an edge region is understood to mean an area delimited by a circumference of a support region.
Die Erfindung versteht unter einem Stützbereich einen Abschnitt der vorgestellten Transport- und Aufrollhilfe, der rund ist und der eine um die Transport- und Aufrollhilfe herumgewickelte Bewehrungsstahlstabmatte stabilisiert bzw. stützt. Entsprechend stellt ein Stützbereich einer aus einer Umgebung auf die Bewehrungsstahlstabmatte wirkenden Kraft, wie bspw. einer Gewichtskraft von übereinander geschichteten Rollen, eine Gegenkraft entgegen, die eine Verformung der Bewehrungsstahlstabmatte verhindert.The invention defines a support area as a round section of the proposed transport and winding aid that stabilizes or supports a reinforcing steel bar mat wrapped around the transport and winding aid. Accordingly, a support area counteracts a force acting on the reinforcing steel bar mat from an environment, such as the weight of stacked rolls, with a counterforce that prevents deformation of the reinforcing steel bar mat.
Die Erfindung versteht unter einem Verbindungsbereich einen Abschnitt der vorgestellten Transport- und Aufrollhilfe, der insbesondere zumindest bereichsweise länglich bzw. gerade ist und die verschiedenen erfindungsgemäßen vorgesehenen Stützbereiche verbindet bzw. beabstandet. Entsprechend ist der Verbindungsbereich sowohl mit dem ersten Stützelement als auch mit dem zweiten Stützelement verbunden. Insbesondere geht der Verbindungsbereich auf seiner ersten Seite in das erste Stützelement und auf seiner, der erste Seite gegenüberliegenden, zweiten Seite in das zweite Stützelement über.The invention understands a connecting area as a section of the presented transport and rolling aid, which is in particular at least partially elongated or straight and the various connects or spaced apart the support regions provided according to the invention. Accordingly, the connecting region is connected to both the first support element and the second support element. In particular, the connecting region merges into the first support element on its first side and into the second support element on its second side, opposite the first side.
Die erfindungsgemäße Transport- und Aufrollhilfe basiert auf dem Prinzip, dass sie an einer Bewehrungsstahlstabmatte, insbesondere einem ersten Bewehrungsstahlstab einer Bewehrungsstahlstabmatte, reversibel angeordnet, insbesondere geklemmt, werden kann. Zum Klemmen der Transport- und Aufrollhilfe an einem Bewehrungsstahlstab bzw. zum Klemmen eines Bewehrungsstahlstabs an der Transport- und Aufrollhilfe stellt die erfindungsgemäße Transport- und Aufrollhilfe eine Aufnahme bereit, in die der Bewehrungsstahlstab einklemmbar bzw. einzuklemmen ist.The transport and winding aid according to the invention is based on the principle that it can be reversibly arranged, in particular clamped, to a reinforcing steel bar mat, in particular a first reinforcing steel bar of a reinforcing steel bar mat. For clamping the transport and winding aid to a reinforcing steel bar or for clamping a reinforcing steel bar to the transport and winding aid, the transport and winding aid according to the invention provides a receptacle into which the reinforcing steel bar can be clamped or is to be clamped.
Die Aufnahme der erfindungsgemäßen Transport- und Aufrollhilfe ist durch eine Wechselwirkung des Verbindungsbereichs mit den Stützbereichen gebildet, so dass die Aufnahme insbesondere nach oben durch die Stützbereiche und insbesondere nach unten durch den Verbindungsbereich begrenzt wird. Dies bedeutet, dass ein an der Transport- und Aufrollhilfe festzuklemmender Bewehrungsstahlstab in die Aufnahme eingebracht wird und sowohl mit dem Verbindungsbereich als auch mit den Stützbereichen in Kontakt steht, so dass eine Reibungs- bzw. Klemmkraft aufgebaut wird, wenn der Bewehrungsstahlstab in die Aufnahme eingebracht wird. Diese Klemmkraft wird dadurch erzeugt, dass die Stützbereiche aufgrund ihrer Gewichtskraft und ihrer starren Form den Bewehrungsstahlstab auf den Verbindungsbereich drücken bzw. der Bewehrungsstahlstab die Stützbereiche von dem Verbindungsbereich weg drückt.The receptacle of the transport and winding aid according to the invention is formed by an interaction of the connecting region with the support regions, so that the receptacle is limited in particular at the top by the support regions and in particular at the bottom by the connecting region. This means that a reinforcing steel bar to be clamped to the transport and winding aid is inserted into the receptacle and is in contact with both the connecting region and the support regions, so that a frictional or clamping force is built up when the reinforcing steel bar is inserted into the receptacle. This clamping force is generated by the support regions pressing the reinforcing steel bar onto the connecting region due to their weight and their rigid shape, or the reinforcing steel bar pressing the support regions away from the connecting region.
Aufgrund der runden Form der Stützbereiche kann eine Bewehrungsstahlstabmatte leicht um die erfindungsgemäße Transportund Aufrollhilfe herumgewickelt werden, so dass sich eine Rolle bildet, in deren Rollenauge die Transport- und Aufrollhilfe die Rolle formstabil stützt.Due to the round shape of the support areas, a reinforcing steel bar mat can easily be wound around the transport and winding aid according to the invention, so that a roll is formed, in the roll eye of which the transport and winding aid supports the roll in a dimensionally stable manner.
Durch ein Umwickeln der erfindungsgemäßen Transport- und Aufrollhilfe mit einer Bewehrungsstahlstabmatte wirkt eine Gewichtskraft der Bewehrungsstahlstabmatte auf die Stützbereiche, so dass sich die auf einen in der Aufnahme der Transport- und Aufrollhilfe angeordneten Bewehrungsstahlstab wirkende Reibungs- bzw. Klemmkraft maximiert und der Bewehrungsstahlstab bzw. die Bewehrungsstahlstabmatte besonders sicher an der Transport- und Aufrollhilfe gehalten wird. Entsprechend kann ein Bewehrungsstahlstab zu Beginn eines Aufwicklungsvorgangs, bei dem eine Bewehrungsstahlstabmatte um die Transport- und Aufrollhilfe herum aufgewickelt wird, leicht bzw. mit relativ wenig Kraft in die Aufnahme eingebracht werden. Analog kann der Bewehrungsstahlstab nach einem Abwicklungsvorgang, bei dem die Bewehrungsstahlstabmatte von der Transport- und Aufrollhilfe abgewickelt wird, leicht bzw. mit relativ wenig Kraft aus der Aufnahme entfernt werden.By wrapping a reinforcing steel bar mat around the transport and winding aid according to the invention, a weight of the reinforcing steel bar mat acts on the support areas, so that the friction or clamping force acting on a reinforcing steel bar arranged in the holder of the transport and winding aid is maximized and the reinforcing steel bar or reinforcing steel bar mat is held particularly securely on the transport and winding aid. Accordingly, a reinforcing steel bar can be easily inserted into the holder at the beginning of a winding process in which a reinforcing steel bar mat is wound around the transport and winding aid. Analogously, the reinforcing steel bar can be easily removed from the holder with relatively little force after an unwinding process in which the reinforcing steel bar mat is unwound from the transport and winding aid.
Die Aufnahme der erfindungsgemäßen Transport- und Aufrollhilfe ist derart geformt, dass ein in die Aufnahme eingebrachter Bewehrungsstahlstab zwischen dem Verbindungsbereich und den Stützbereichen eingeklemmt wird. Daher kann auf ein Anschweißen des Bewehrungsstahlstabs an der Transport- und Aufrollhilfe verzichtet werden, so dass die Transport- und Aufrollhilfe, nachdem der Bewehrungsstahlstab aus der Aufnahme entnommen wurde, grundsätzlich wiederverwendbar ist.The receptacle of the transport and winding aid according to the invention is shaped such that a reinforcing steel bar inserted into the receptacle is clamped between the connecting area and the support areas. Therefore, welding of the reinforcing steel bar to the transport and winding aid is not necessary, so that the transport and winding aid is essentially reusable after the reinforcing steel bar has been removed from the receptacle.
In Ausgestaltung der Erfindung ist vorgesehen, dass der Verbindungsbereich an seinem ersten Ende in einem ersten Bogen in den ersten Stützbereich übergeht und der Verbindungsbereich an seinem zweiten Ende in einem zweiten Bogen in den zweiten Stützbereich übergeht, wobei der erste Bogen den ersten Klemmbereich weggewandt von dem Verbindungsbereich begrenzt, und der erste Klemmbereich auf einer dem ersten Bogen gegenüberliegenden Seite zum Einbringen eines Bewehrungsstahlstabs zugänglich ist, und wobei der zweite Bogen den zweiten Klemmbereich weggewandt von dem Verbindungsbereich begrenzt, und der zweite Klemmbereich auf einer dem zweiten Bogen gegenüberliegenden Seite zum Einbringen eines Bewehrungsstahlstabs zugänglich ist. Durch einen bogenförmigen Übergang zwischen dem Verbindungbereich und jeweiligen Stützbereichen der erfindungsgemäßen Transport- und Aufrollhilfe wird eine relative Bewegung zwischen einem Stützbereich und dem Verbindungsbereich ermöglicht, so dass der Stützbereich und der Verbindungsbereich sich aufeinander zu bewegen können und entsprechend einen zwischen dem Stützbereich und dem Verbindungsbereich in die Aufnahme eingebrachten Bewehrungsstahlstab einklemmen, wenn die Transport- und Aufrollhilfe mit einer Bewehrungsstahlstabmatte umwickelt und entsprechend mit Gewicht beaufschlagt wird. Umgekehrt ermöglicht ein bogenförmiger Übergang zwischen dem Verbindungbereich und jeweiligen Stützbereichen der erfindungsgemäßen Transport- und Aufrollhilfe, dass der Stützbereich und der Verbindungsbereich sich voneinander weg bewegen können und entsprechend einen zwischen dem Stützbereich und dem Verbindungsbereich in die Aufnahme eingebrachten Bewehrungsstahlstab freigeben, wenn die Transport- und Aufrollhilfe von einer Bewehrungsstahlstabmatte entwickelt und entsprechend von dessen Gewicht entlastet wird.In an embodiment of the invention, it is provided that the connecting area at its first end extends in a first curve into the first support area and the connecting area at its second end merges into the second support area in a second curve, wherein the first curve delimits the first clamping area facing away from the connecting area, and the first clamping area is accessible on a side opposite the first curve for inserting a reinforcing steel bar, and wherein the second curve delimits the second clamping area facing away from the connecting area, and the second clamping area is accessible on a side opposite the second curve for inserting a reinforcing steel bar. By means of an arc-shaped transition between the connecting area and respective support areas of the transport and winding aid according to the invention, a relative movement between a support area and the connecting area is made possible, so that the support area and the connecting area can move towards one another and correspondingly clamp a reinforcing steel bar inserted into the receptacle between the support area and the connecting area when the transport and winding aid is wrapped with a reinforcing steel bar mat and correspondingly loaded with weight. Conversely, an arcuate transition between the connecting area and respective support areas of the transport and winding aid according to the invention enables the support area and the connecting area to move away from each other and accordingly release a reinforcing steel bar inserted into the receptacle between the support area and the connecting area when the transport and winding aid is developed by a reinforcing steel bar mat and is accordingly relieved of its weight.
Insbesondere kann der bogenförmige Übergang zwischen dem Verbindungbereich und jeweiligen Stützbereichen der erfindungsgemäßen Transport- und Aufrollhilfe federnd bzw. elastisch ausgestaltet sein, um eine relative Bewegung zwischen Verbindungsbereich und Stützbereich zu ermöglichen. Weiterhin wird durch einen bogenförmigen Übergang zwischen dem Verbindungbereich und jeweiligen Stützbereichen der erfindungsgemäßen Transport- und Aufrollhilfe ein besonders effektiver Kraftfluss zwischen den Stützbereichen und dem Verbindungsbereich ermöglicht, so dass die Transport- und Aufrollhilfe besonders belastbar ist.In particular, the curved transition between the connecting area and the respective support areas of the transport and rolling aid according to the invention can be designed to be resilient or elastic in order to to enable relative movement between the connecting area and the support area. Furthermore, an arcuate transition between the connecting area and the respective support areas of the transport and winding aid according to the invention enables a particularly effective flow of force between the support areas and the connecting area, so that the transport and winding aid is particularly resilient.
Insbesondere kann der bogenförmige Übergang zwischen dem Verbindungbereich und jeweiligen Stützbereichen der erfindungsgemäßen Transport- und Aufrollhilfe in Richtung einer orthogonal zu dem Verbindungsbereich verlaufenden Achse gebogen sein, so dass der Übergang ausgehend von dem Verbindungsbereich nach oben in Richtung eines jeweiligen Stützbereichs verläuft.In particular, the arcuate transition between the connecting region and respective support regions of the transport and rolling aid according to the invention can be bent in the direction of an axis running orthogonal to the connecting region, so that the transition runs upwards from the connecting region in the direction of a respective support region.
In Ausgestaltung der Erfindung ist vorgesehen, dass die Transport- und Aufrollhilfe einstückig ausgebildet ist. Die erfindungsgemäße Transportund Aufrollhilfe kann aus einem einzigen Stück Metall, insbesondere einem Stahlstab oder sogar einem Bewehrungsstahlstab gebildet sein. Durch die einstückige Ausbildung der erfindungsgemäßen Transport- und Aufrollhilfe ist diese besonders belastbar, da spröde Verbindungsbereiche zum Verbinden mehrerer Metallteile vermieden werden.In one embodiment of the invention, the transport and winding aid is designed as a single piece. The transport and winding aid according to the invention can be formed from a single piece of metal, in particular a steel rod or even a reinforcing steel bar. The single-piece design of the transport and winding aid according to the invention makes it particularly resilient, as brittle connection areas for connecting multiple metal parts are avoided.
In Ausgestaltung der Erfindung ist vorgesehen, dass der Verbindungsbereich U-förmig mit einer Basis, einem ersten Schenkel und einem zweiten Schenkel ausgebildet ist, wobei die Basis die Längsachse umfasst, wobei der erste Schenkel und der zweite Schenkel einander gegenüberliegen und wobei der erste Schenkel in einem ersten Bogen in den ersten Stützbereich übergeht und der zweite Schenkel an seinem zweiten Ende in einem zweiten Bogen in den zweiten Stützbereich übergeht. Der erste Bogen begrenzt den ersten Klemmbereich weggewandt bzw. gegenüberliegend von dem Verbindungsbereich, so dass der erste Klemmbereich auf einer dem ersten Bogen gegenüberliegenden Seite zum Einbringen eines Bewehrungsstahlstabs zugänglich ist. Der zweite Bogen begrenzt den zweiten Klemmbereich weggewandt bzw. gegenüberliegend von dem Verbindungsbereich, so dass der zweite Klemmbereich auf einer dem zweiten Bogen gegenüberliegenden Seite zum Einbringen eines Bewehrungsstahlstabs zugänglich ist. Ein U-förmiger Verbindungsbereich dient sowohl als Stellfläche zum Abstellen der Transport- und Aufrollhilfe auf einer Bodenfläche als auch zur kompakten und stabilen Bereitstellung von Klemmbereichen der Aufnahme der erfindungsgemäßen Transport- und Aufrollhilfe. Der U-förmige Bereich kann auch als Griff zum Transportieren der erfindungsgemäßen Transport- und Aufrollhilfe verwendet werden. Auch kann eine Basis eines U-förmigen Bereichs als Markierungsfläche zum Anordnen von Markierungen, wie bspw. Identifikationscodes, insbesondere einem QR-Code verwendet werden, jedoch ist es bevorzugt, einen solchen an anderer Stelle anzubringen, wie weiter unten noch ausgeführt wird. Dazu kann die Basis optional zumindest bereichsweise flachgepresst sein, um eine Markierungsfläche bereitzustellen, in die bspw. ein Identifikationscode eingeschlagen werden kann.In an embodiment of the invention, it is provided that the connecting region is U-shaped with a base, a first leg, and a second leg, wherein the base comprises the longitudinal axis, wherein the first leg and the second leg are opposite one another, and wherein the first leg merges into the first support region in a first curve, and the second leg merges into the second support region at its second end in a second curve. The first curve delimits the first clamping region facing away from or opposite the connecting region, so that the first clamping area is accessible on a side opposite the first arch for inserting a reinforcing steel bar. The second arch delimits the second clamping area facing away from or opposite the connecting area, so that the second clamping area is accessible on a side opposite the second arch for inserting a reinforcing steel bar. A U-shaped connecting area serves both as a base for placing the transport and winding aid on a floor surface and for the compact and stable provision of clamping areas for receiving the transport and winding aid according to the invention. The U-shaped area can also be used as a handle for transporting the transport and winding aid according to the invention. A base of a U-shaped area can also be used as a marking area for arranging markings, such as identification codes, in particular a QR code, but it is preferable to apply such a marking at a different location, as explained further below. For this purpose, the base can optionally be flattened at least in some areas in order to provide a marking area into which, for example, an identification code can be stamped.
In Ausgestaltung der Erfindung ist vorgesehen, dass der erste runde Stützbereich und/oder der zweite runde Stützbereich zumindest teilweise spiralförmig und/oder kreisförmig und/oder elliptisch sind und einen an einem jeweiligen Übergang zu dem Verbindungsbereich beginnenden Umfangswinkel von mindestens 360°, bevorzugt von mindestens 540°, ganz besonders bevorzugt von 720° aufweisen. Ein spiralförmiger Stützbereich, d.h. ein Stützbereich, der eine Vielzahl Wicklungen umfasst, ist zum einen aufgrund der Vielzahl Wicklungen stabiler als ein einzelner Ring und zum anderen axial dehnbar, so dass ein spiralförmiger Stützbereich besonders belastbar ist. Dabei führt eine Belastung eines spiralförmigen Stützbereichs zu einer axialen Dehnung des Stützbereichs und zu einer relativen Bewegung des Stützbereichs in Richtung des Verbindungsbereichs, so dass ein durch den Stützbereich geklemmter Bewehrungsstahlstab mit zunehmender Belastung des Stützbereichs stärker geklemmt wird und dabei selbst stützend bzw. stabilisierend auf den Stützbereich wirkt. Weiterhin ist ein spiralförmiger Stützbereich deutlich robuster gegenüber Scherkräften als ein einzelner Ring, da die Vielzahl Wicklungen eines spiralförmigen Stützbereichs sich gegenseitig in allen Richtungen stützen bzw. stabilisieren.In an embodiment of the invention, it is provided that the first round support region and/or the second round support region are at least partially spiral and/or circular and/or elliptical and have a circumferential angle of at least 360°, preferably of at least 540°, most preferably of 720°, beginning at a respective transition to the connecting region. A spiral support region, i.e. a support region comprising a plurality of windings, is, on the one hand, more stable than a single ring due to the plurality of windings and, on the other hand, is axially expandable, so that a spiral support region is particularly resilient. In this case, a load on a spiral support region leads to an axial expansion of the support region. and a relative movement of the support area toward the connection area, so that a reinforcing steel bar clamped by the support area becomes more tightly clamped as the load on the support area increases, thereby supporting or stabilizing the support area itself. Furthermore, a spiral support area is significantly more robust against shear forces than a single ring, since the numerous windings of a spiral support area support or stabilize each other in all directions.
In Ausgestaltung der Erfindung ist vorgesehen, dass der erste Klemmbereich und/oder der zweite Klemmbereich in einem an einem jeweiligen Übergang zu dem Verbindungsbereich beginnenden Umfangswinkelbereich von 0° bis maximal 45°, vorzugsweise maximal 30°, des jeweiligen Stützbereiches verlaufen.In an embodiment of the invention, it is provided that the first clamping region and/or the second clamping region extend in a circumferential angle range of 0° to a maximum of 45°, preferably a maximum of 30°, of the respective support region beginning at a respective transition to the connecting region.
Durch im Wesentlichen senkrecht zu dem Verbindungsbereich ausgerichtete Stützbereiche und eine im Wesentlichen runde Form der erfindungsgemäßen Transport- und Aufrollhilfe kann eine Bewehrungsstahlstabmatte um die Transport- und Aufrollhilfe herumgewickelt werden, um eine Rolle zu erzeugen, bei der die Transport- und Aufrollhilfe im Rollenauge sitzt. Dabei bewirken die entlang der Längssachse des Verbindungsbereichs beabstandeten Stützbereiche eine stabile Form der Rolle auch bei Verwendung besonders langer Bewehrungsstahlstabmatten mit entsprechend langen Bewehrungsstahlstäben.By means of support areas aligned essentially perpendicular to the connection area and a substantially round shape of the transport and winding aid according to the invention, a reinforcing steel bar mat can be wound around the transport and winding aid to create a roll in which the transport and winding aid sits in the roller eye. The support areas spaced along the longitudinal axis of the connection area ensure a stable shape of the roll, even when using particularly long reinforcing steel bar mats with correspondingly long reinforcing steel bars.
Insbesondere ist eine Länge der Längsachse bzw. eines Abstands zwischen den Stützbereichen der erfindungsgemäßen Transport- und Aufrollhilfe in Abhängigkeit einer Länge einer zu transportierenden Bewehrungsstahlstabmatte gewählt. Dabei können selbstverständlich auch mehrere Transport- und Aufrollhilfen hintereinander gereiht oder eine Transport- und Aufrollhilfe mit vielen, bspw. 4, 6 oder 8 jeweils entlang der Längsachse bzw. der Geraden beabstandeten Stützbereichen verwendet werden.In particular, the length of the longitudinal axis or the distance between the support areas of the transport and winding aid according to the invention is selected depending on the length of a reinforcing steel mesh to be transported. Of course, several transport and winding aids can also be arranged in a row or a Transport and winding aid with many, e.g. 4, 6 or 8 support areas spaced along the longitudinal axis or the straight line.
Die Stützbereiche der erfindungsgemäßen Transport- und Aufrollhilfe können orthogonal zu dem Verbindungsbereich bzw. der Längssachse der Transport- und Aufrollhilfe ausgerichtet sein, so dass sich ein rechter Winkel zwischen der Längsachse und einem jeweiligen Stützbereich bildet.The support areas of the transport and rolling aid according to the invention can be aligned orthogonally to the connecting area or the longitudinal axis of the transport and rolling aid, so that a right angle is formed between the longitudinal axis and a respective support area.
Insbesondere bei spiralförmigen Stützbereichen hat sich eine gegenüber einer orthogonalen Ausrichtung leicht geneigte Ausrichtung der Stützbereiche als vorteilhaft erwiesen, da eine geneigte Ausrichtung bei Belastung dazu führt, dass sich ein jeweiliger Stützbereich axial dehnt, so dass eine ungewünschte, bspw. kantige Verformung der Transport- und Aufrollhilfe vermieden wird.Particularly in the case of spiral-shaped support areas, a slightly inclined alignment of the support areas compared to an orthogonal alignment has proven to be advantageous, since an inclined alignment leads to a respective support area stretching axially under load, so that undesirable, for example angular deformation of the transport and winding aid is avoided.
In Ausgestaltung der Erfindung ist vorgesehen, dass der erste runde Stützbereich und/oder der zweite runde Stützbereich in einem Griffabschnitt enden, der innerhalb des ersten Randbereichs des ersten runden Stützbereichs und/oder innerhalb des zweiten Randbereichs des zweiten runden Stützbereichs liegt. Mittels eines Griffabschnitts, der bspw. gerade innerhalb eines Randbereichs eines Stützbereichs verläuft, kann die Transport- und Aufrollhilfe leicht angehoben und transportiert werden. Weiterhin kann an einem solchen Griffabschnitt eine Markierung, wie bspw. ein Etikett, insbesondere ein QR-Codeetikett angebracht werden, um bspw. die Transport- und Aufrollhilfe und/oder eine an der Transportund Aufrollhilfe angeordnete Bewehrungsstahlstabmatte zu identifizieren. Diese Anordnung des Identifikationsmittels ist bevorzugt. Optional kann der Griffabschnitt zumindest bereichsweise flachgepresst sein, so dass bspw. eine dauerhafte Markierung in den Griffabschnitt eingeschlagen werden kann.In an embodiment of the invention, it is provided that the first round support area and/or the second round support area end in a handle section that lies within the first edge area of the first round support area and/or within the second edge area of the second round support area. By means of a handle section that runs, for example, straight within an edge area of a support area, the transport and winding aid can be easily lifted and transported. Furthermore, a marking, such as a label, in particular a QR code label, can be attached to such a handle section in order to identify, for example, the transport and winding aid and/or a reinforcing steel bar mat arranged on the transport and winding aid. This arrangement of the identification means is preferred. Optionally, the handle section can be flattened at least in some areas, so that For example, a permanent mark can be engraved into the handle section.
In Ausgestaltung der Erfindung ist vorgesehen, dass ein axialer Abstand zwischen dem ersten runden Stützbereich und dem zweiten runden Stützbereich mindestens so groß ausgebildet ist, dass zwischen dem ersten runden Stützbereich und dem zweiten runden Stützbereich jeweilige Stützbereiche einer weiteren Transport- und Aufrollhilfe derart aufnehmbar sind, dass eine Vielzahl Transport- und Aufrollhilfen ineinander stapelbar sind. Durch stapelbare Transport- und Aufrollhilfen können viele Transport- und Aufrollhilfen platzsparend gelagert werden.In one embodiment of the invention, the axial distance between the first round support area and the second round support area is at least large enough to accommodate respective support areas of another transport and winding aid between the first round support area and the second round support area, allowing a plurality of transport and winding aids to be stacked inside one another. Stackable transport and winding aids allow for space-saving storage of many transport and winding aids.
In einem zweiten Aspekt betrifft die vorgestellte Erfindung ein Verfahren zum Aufrollen und Transportieren einer einachsigen Bewehrungsstahlstabmatte. Das Verfahren umfasst einen Anordnungsschritt, bei dem mindestens eine mögliche Ausgestaltung der erfindungsgemäßen Transport- und Aufrollhilfe derart über einen Bewehrungsstahlstab einer einachsigen Bewehrungsstahlstabmatte geschoben wird, dass der Bewehrungsstahlstab in jeweiligen Klemmbereichen der mindestens einen Transport- und Aufrollhilfe reversibel eingeklemmt wird. Weiterhin umfasst das Verfahren einen Aufrollschritt, bei dem die einachsige Bewehrungsstahlstabmatte um die mindestens eine Transport- und Aufrollhilfe herum aufgewickelt wird, um sie transportfähig zu machen. Die vorgestellte Transport- und Aufrollhilfe dient insbesondere zur Durchführung des vorgestellten Verfahrens zum Aufrollen und Transportieren einer einachsigen Bewehrungsstahlstabmatte.In a second aspect, the presented invention relates to a method for rolling up and transporting a uniaxial reinforcing steel bar mat. The method comprises an arrangement step in which at least one possible embodiment of the transport and rolling aid according to the invention is pushed over a reinforcing steel bar of a uniaxial reinforcing steel bar mat in such a way that the reinforcing steel bar is reversibly clamped in respective clamping regions of the at least one transport and rolling aid. Furthermore, the method comprises a rolling-up step in which the uniaxial reinforcing steel bar mat is wound around the at least one transport and rolling aid to make it transportable. The presented transport and rolling aid serves in particular to carry out the presented method for rolling up and transporting a uniaxial reinforcing steel bar mat.
In Ausgestaltung des erfindungsgemäßen Verfahrens ist vorgesehen, dass bei dem Anordnungsschritt die mindestens eine Transport- und Aufrollhilfe in eine Maschine zur Herstellung der Bewehrungsstahlstabmatte eingebracht wird, so dass während eines Herstellungsprozesses zum Herstellen der Bewehrungsstahlstabmatte die Bewehrungsstahlstabmatte in einem kontinuierlichen Prozess um die mindestens eine Transport- und Aufrollhilfe herumgewickelt wird.In an embodiment of the method according to the invention, it is provided that in the arrangement step the at least one transport and winding aid is integrated into a machine for producing the Reinforcing steel bar mat is introduced so that during a manufacturing process for producing the reinforcing steel bar mat, the reinforcing steel bar mat is wound around the at least one transport and winding aid in a continuous process.
Die vorgestellte Transport- und Aufrollhilfe ermöglicht ein schnelles und einfaches Anordnen der Transport- und Aufrollhilfe an einer Bewehrungsstahlstabmatte, so dass die Transport- und Aufrollhilfe während eines Herstellungsprozesses, insbesondere mit einer, wenn überhaupt nur sehr kurzen Unterbrechung des Herstellungsprozesses, in eine Maschine zur Herstellung der Bewehrungsstahlstabmatte eingebracht werden kann. Entsprechend wird durch die Transport- und Aufrollhilfe bzw. das erfindungsgemäße Verfahren zum Transport einer Bewehrungsstahlstabmatte ein weitestgehend kontinuierlicher Herstellungsprozess für Bewehrungsstahlstabmatten ermöglicht.The presented transport and winding aid enables quick and easy arrangement of the transport and winding aid on a reinforcing steel bar mesh, so that the transport and winding aid can be inserted into a machine for producing the reinforcing steel bar mesh during a manufacturing process, in particular with only a very brief interruption of the manufacturing process, if at all. Accordingly, the transport and winding aid and the inventive method for transporting a reinforcing steel bar mesh enable a largely continuous manufacturing process for reinforcing steel bar mesh.
In einem dritten Aspekt betrifft die Erfindung ein Verfahren zur Herstellung der Transport- und Aufrollhilfe. Dieses Verfahren umfasst einen Biegeprozess, bei dem in einem ersten Biegeschritt aus einem Metallstück ein erster runder Stützbereich geformt wird. In einem zweiten Biegeschritt wird an einem Ende des ersten runden Stützbereichs ein erster gerader Teil eines Verbindungsbereichs geformt, wobei der erste gerade Teil beabstandet von dem ersten Stützbereich geformt wird, so dass zwischen dem ersten Stützbereich und dem ersten geraden Teil ein erster Klemmbereich zum reversiblen Einklemmen eines Bewehrungsstahlstabs einer Bewehrungsstahlstabmatte entsteht. In einem dritten Biegeschritt wird ein zweiter runder Stützbereich geformt. In einem vierten Biegeschritt wird an einem Ende des zweiten Stützbereichs ein zweiter gerader Teil des Verbindungbereichs geformt, wobei der zweite gerade Teil beabstandet von dem zweiten Stützbereich geformt wird, so dass zwischen dem zweiten Stützbereich und dem zweiten geraden Teil ein zweiter Klemmbereich zum reversiblen Einklemmen eines Bewehrungsstahlstabs einer Bewehrungsstahlstabmatte entsteht, wobei der erste gerade Teil und der zweite gerade Teil durch eine Längsachse voneinander beabstandet sind, die zu einer den ersten Randbereich und den zweiten Randbereich verbindenden Gerade parallelverschoben ist.In a third aspect, the invention relates to a method for producing the transport and winding aid. This method comprises a bending process in which, in a first bending step, a first round support region is formed from a piece of metal. In a second bending step, a first straight part of a connecting region is formed at one end of the first round support region, wherein the first straight part is formed at a distance from the first support region, so that a first clamping region for reversibly clamping a reinforcing steel bar of a reinforcing steel bar mat is formed between the first support region and the first straight part. In a third bending step, a second round support region is formed. In a fourth bending step, a second straight part of the connecting region is formed at one end of the second support region, wherein the second straight part is formed at a distance from the second support region, so that a second clamping area for the reversible clamping of a reinforcing steel bar of a reinforcing steel bar mat, wherein the first straight part and the second straight part are spaced from each other by a longitudinal axis which is displaced parallel to a straight line connecting the first edge area and the second edge area.
Die Transport- und Aufrollhilfe wird insbesondere aus einem einzelnen Stück Metall gebogen und die Längsachse durch Biegen eines Endes des ersten Teils und eines Endes des zweiten Teils bereitgestellt. Alternativ wird die Transport- und Aufrollhilfe aus mehreren Stücken Metall zusammengesetzt und die Längsachse wird durch Verbinden eines geraden Metallstücks mit dem Ende des ersten Teils und dem Ende des zweiten Teils gebildet.In particular, the transport and winding aid is bent from a single piece of metal, and the longitudinal axis is provided by bending one end of the first part and one end of the second part. Alternatively, the transport and winding aid is assembled from multiple pieces of metal, and the longitudinal axis is formed by connecting a straight piece of metal to the end of the first part and the end of the second part.
Die verschiedenen Schritte des erfindungsgemäßen Herstellungsverfahrens können in der voranstehend dargelegten Reihenfolge oder jeder anderen technisch geeigneten Reihenfolge ausgeführt werden.The various steps of the manufacturing process according to the invention can be carried out in the order set out above or in any other technically suitable order.
In einem vierten Aspekt betrifft die vorgestellte Erfindung ein System aus einer einachsigen Bewehrungsstahlstabmatte aufweisend eine Vielzahl von Bewehrungsstahlstäben und einer Transport- und Aufrollhilfe wie zuvor beschrieben.In a fourth aspect, the presented invention relates to a system comprising a uniaxial reinforcing steel bar mat comprising a plurality of reinforcing steel bars and a transport and winding aid as described above.
Die Erfindung wird in einer bevorzugten Ausführungsform unter Bezugnahme auf die beigefügten Zeichnungen beispielhaft beschrieben, wobei weitere vorteilhafte Einzelheiten den Figuren der Zeichnungen zu entnehmen sind. Insbesondere können der zweite Biegeschritt und der dritte Biegeschritt unabhängig voneinander bzw. zeitlich entkoppelt durchgeführt werden, wenn die Transport- und Aufrollhilfe aus mehreren Stücken Metall zusammengesetzt wird.The invention will be described by way of example in a preferred embodiment with reference to the accompanying drawings, wherein further advantageous details can be gathered from the figures of the drawings. In particular, the second bending step and the third bending step can be carried out independently of one another or at different times if the transport and winding aid is assembled from several pieces of metal.
Die Figuren der Zeichnung zeigen im Einzelnen:
- Fig. 1:
- eine perspektivische Ansicht einer möglichen Ausgestaltung der erfindungsgemäßen Transport- und Aufrollhilfe,
- Fig. 2:
- eine Seitenansicht der Transport- und Aufrollhilfe gemäß
Fig. 1 , - Fig. 3:
- eine Frontalansicht der Transport- und Aufrollhilfe gemäß
Fig. 1 , - Fig. 4:
- eine mögliche Ausgestaltung des erfindungsgemäßen Verfahrens zum Aufrollen und Transportieren einer Bewehrungsstahlstabmatte,
- Fig. 5:
- eine mögliche Ausgestaltung des erfindungsgemäßen Herstellungsverfahrens und
- Fig. 6:
- eine mögliche Ausgestaltung der erfindungsgemäßen Bewehrungsstahlstabmatte.
- Fig. 1:
- a perspective view of a possible embodiment of the transport and winding aid according to the invention,
- Fig. 2:
- a side view of the transport and winding aid according to
Fig. 1 , - Fig. 3:
- a front view of the transport and winding aid according to
Fig. 1 , - Fig. 4:
- a possible embodiment of the method according to the invention for rolling up and transporting a reinforcing steel bar mat,
- Fig. 5:
- a possible embodiment of the manufacturing process according to the invention and
- Fig. 6:
- a possible design of the reinforcing steel bar mat according to the invention.
In
Der erste Stützbereich 101 und der zweite Stützbereich 105 sind entlang einer Längsachse 111 voneinander beabstandet. Die Längsachse 111 verläuft parallelverschoben zu einer zwischen einem Mittelpunkt des ersten Randbereichs 103 und einem Mittelpunkt des zweiten Randbereichs 107 verlaufenden Geraden 113.The
Der Verbindungsbereich 109 bildet zusammen mit dem ersten Stützbereich 101 einen ersten Klemmbereich 115. Wie in
Der Abstand zwischen dem Verbindungsbereich 109 und dem ersten Stützbereich 101 bzw. dem zweiten Stützbereich 105 ist bspw. derart gewählt, dass dieser einem Durchmesser eines Bewehrungsstahlstabs entspricht, so dass der Bewehrungsstahlstab in einer nicht belasteten Ruhestellung der Transport- und Aufrollhilfe 100 leicht in die Aufnahme 119 einbringbar ist.The distance between the connecting
Bei einer Beaufschlagung der Transport- und Aufrollhilfe 100 mit Gewicht durch bspw. über der Transport- und Aufrollhilfe 100 angeordnete Bewehrungsstahlstabrollen, bewegen sich der erste Stützbereich 101 und der zweite Stützbereich 105 in Richtung des Verbindungsbereichs 109 und klemmen einen zwischen den Stützbereichen 101 und 105 angeordneten Bewehrungsstahlstab fest, indem die auf die Transport- und Aufrollhilfe 100 wirkende Gewichtskraft zumindest teilweise auf den Bewehrungsstahlstab übertragen wird. Dabei wirkt der Bewehrungsstahlstab stabilisierend auf die Transport- und Aufrollhilfe 100, wenn diese mit Gewicht belastet wird, da der Bewehrungsstahlstab eine Bewegung des ersten Stützbereichs 101 und des zweiten Stützbereich 105 in Richtung des Verbindungsbereichs 109 nur bedingt zulässt.When the transport and winding
In
In
In
In
Der Biegeprozess 501 kann mit einem einzelnen Stück Metall durchgeführt werden, so dass die Längsachse durch Biegen eines Endes des ersten Teils und eines Endes des zweiten Teils bereitgestellt wird. Alternativ kann das Herstellungsverfahren einen Verbindungsschritt 511 umfassen, so dass die Transport- und Aufrollhilfe aus mehreren Stücken Metall zusammengesetzt wird und die Längsachse durch Verbinden, insbesondere Verschweißen eines geraden Metallstücks mit dem Ende des ersten Teils und dem Ende des zweiten Teils gebildet wird.The
In
- 100100
- Transport- und AufrollhilfeTransport and winding aid
- 101101
- erster runder Stützbereichfirst round support area
- 103103
- erster Randbereichfirst edge area
- 105105
- zweiter runder Stützbereichsecond round support area
- 107107
- zweiter Randbereichsecond edge area
- 109109
- VerbindungsbereichConnection area
- 111111
- LängsachseLongitudinal axis
- 113113
- GeradeStraight
- 115115
- erster Klemmbereichfirst clamping area
- 117117
- zweiter Klemmbereichsecond clamping area
- 119119
- AufnahmeRecording
- 301301
- GriffabschnittHandle section
- 400400
- VerfahrenProceedings
- 401401
- AnordnungsschrittArrangement step
- 403403
- AufrollschrittRoll-up step
- 500500
- HerstellungsverfahrenManufacturing process
- 501501
- BiegeprozessBending process
- 503503
- erster Biegeschrittfirst bending step
- 505505
- zweiter Biegeschrittsecond bending step
- 507507
- dritter Biegeschrittthird bending step
- 509509
- vierter Biegeschrittfourth bending step
- 511511
- VerbindungsschrittConnection step
- 600600
- BewehrungsstahlstabmatteReinforcing steel bar mesh
- 601601
- BewehrungsstahlstabReinforcing steel bar
Claims (12)
- Transport and rolling-up aid (100) for uniaxial reinforcing steel bar mats, comprising:- a first round support area (101),- a second round support area (105),- a connecting region (109) arranged between the first support region (101) and the second support region (105) and axially spacing them apart,wherein the first round support region (101) has a first edge region (103), wherein the second round support region (105) has a second edge region (107),wherein a longitudinal axis (111) of the connecting region (109) is displaced parallel to a straight line (113) connecting the first edge region (103) and the second edge region (107),wherein the connecting region (109) forms with the first support region (101) a first clamping region (115), which is bounded by the connecting region (109) and by the first support region (101),wherein the connecting region (109) forms with the second support region (105) a second clamping region (117), which is bounded by the connecting region (109) and by the second support region (105),so that the first clamping area (115) and the second clamping area (117) together form a receptacle (119) in which a reinforcing steel bar of a uniaxial reinforcing steel bar mat can be reversibly clamped.
- Transport and rolling-up aid (100) according to claim 1, characterized that the connecting region (109) merges at its first end in a first arc into the first support region (101) and the connecting region (109) merges at its second end in a second arc into the second support region (105),wherein the first bend defines the first clamping region (115) facing away from the connecting region (109), and the first clamping region (115) is accessible on a side opposite the first bend for insertion of a reinforcing steel bar, andwherein the second bend defines the second clamping region (117) facing away from the connecting region (109), and the second clamping region (117) is accessible on a side opposite the second bend for insertion of a reinforcing steel bar.
- Transport and rolling-up aid (100) according to claim 1 or 2, characterized in that the transport and rolling-up aid (100) is designed in one piece.
- Transport and rolling-up aid (100) according to claim 1 or 3, characterized in that the connecting region (109) is U-shaped with a base, a first leg and a second leg,wherein the base comprises the longitudinal axis (111),where the first leg and the second leg are opposite each other,wherein the first leg merges into the first support region (101) in a first arc and the second leg merges into the second support region (105) at its second end in a second arc,wherein the first bend defines the first clamping region (115) facing away from the connecting region (109), and the first clamping region (115) is accessible on a side opposite the first bend for insertion of a reinforcing steel bar, andwherein the second bend defines the second clamping region (117) facing away from the connecting region, and the second clamping region (117) is accessible on a side opposite the second bend for insertion of a reinforcing steel bar.
- Transport and rolling-up aid (100) according to one of the preceding claims, characterized in that the first round support region (101) and/or the second round support region (105) are at least partially spiral and/or circular and/or elliptical and have a circumferential angle of at least 360°, preferably of at least 540°, very particularly preferably of 720°, beginning at a respective transition to the connecting region (109).
- Transport and rolling-up aid (100) according to claim 5, characterized in that the first and/or the second clamping region (115, 117) extend in a circumferential angle range of 0° to a maximum of 45°, preferably a maximum of 30°, beginning at a respective transition to the connecting region.
- Transport and rolling-up aid (100) according to one of the preceding claims, characterized in that the first round support region (101) and/or the second round support region (105) end in a handle section (301) which lies within the first edge region (103) of the first round support region (101) and/or within the second edge region (107) of the second round support region (105).
- Transport and rolling-up aid (100) according to one of the preceding claims, characterized in that an axial distance between the first round support region (101) and the second round support region (105) is designed to be at least so large that respective support regions of a further transport and rolling-up aid can be accommodated between the first round support region (101) and the second round support region (105) in such a way that a plurality of transport and rolling-up aids can be stacked one inside the other.
- A method (400) of rolling-up and transporting a uniaxial reinforcing steel bar mesh, the method (400) comprising:- an arranging step (401), in which at least one transport and rolling-up aid (100) according to one of the preceding claims is pushed over a reinforcing steel bar of a uniaxial reinforcing steel bar mat in such a way that the latter is reversibly clamped in respective clamping regions (115, 117) of the at least one transport and rolling-up aid (100),- a rolling-up step (403), in which the uniaxial reinforcing steel bar mesh is wound around the at least one transport and rolling-up aid (100) in order to make it transportable.
- Method (400) according to claim 9, characterized that in the arranging step (401), the at least one transport and rolling-up aid (100) is introduced into a machine for manufacturing the reinforcing steel bar mesh, so that during a manufacturing process for manufacturing the reinforcing steel bar mesh, the reinforcing steel bar mesh is wound around the at least one transport and rolling-up aid (100) in a continuous process.
- A manufacturing method (500) for manufacturing a transportation and rolling-up aid (100), comprising a bending process (501) in which in a first bending step (503) a first round support portion (101) is formed from a piece of metal, wherein in a second bending step (505) a first straight portion of a connecting portion (109) is formed at one end of the first round support portion (101), the first straight portion being formed spaced apart from the first support portion (101), so that a first clamping region (115) for reversibly clamping a reinforcing steel bar of a reinforcing steel bar mesh is formed between the first support region (101) and the first straight part, wherein a second round support region (105) is formed in a third bending step (507), wherein a second straight part of the connecting region (109) is formed in a fourth bending step (509) at one end of the second support region (105), wherein the second straight part is formed at a distance from the second support region (105), so that a second clamping region (117) for reversibly clamping a reinforcing steel bar of a reinforcing steel bar mesh is formed between the second support region (105) and the second straight part, the first straight part and the second straight part of the connecting region (109) being spaced apart from one another by a longitudinal axis (111) which is displaced parallel to a straight line (113) connecting a first edge region (103) of the first support region (103) and a second edge region (107) of the second support region (105), and wherein the transportation and rolling-up aid (100) is bent from a single piece of metal and the longitudinal axis (111) is provided by bending an end of the first part and an end of the second part, or the transportation and rolling-up aid (100) is assembled from a plurality of pieces of metal and the longitudinal axis (111) is formed by connecting a straight piece of metal to the end of the first part and the end of the second part.
- Uniaxial reinforcing steel bar mesh (600) comprising a plurality of reinforcing steel bars (601) and a transport and rolling-up aid (100) according to one of claims 1 to 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021117313.2A DE102021117313B4 (en) | 2021-07-05 | 2021-07-05 | Transport and rolling aid for single-axis reinforcing steel mesh |
| PCT/EP2022/062742 WO2023280456A1 (en) | 2021-07-05 | 2022-05-11 | Transport and winding aid for single-axis reinforcing steel bar mats, and production method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4366895A1 EP4366895A1 (en) | 2024-05-15 |
| EP4366895C0 EP4366895C0 (en) | 2025-03-26 |
| EP4366895B1 true EP4366895B1 (en) | 2025-03-26 |
Family
ID=82016497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22729075.6A Active EP4366895B1 (en) | 2021-07-05 | 2022-05-11 | Transport and winding aid for single-axis reinforcing steel bar mats, and production method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4366895B1 (en) |
| DE (1) | DE102021117313B4 (en) |
| WO (1) | WO2023280456A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA766870A (en) * | 1967-09-12 | Barron Maurice | Welded fabric for reinforced concrete and method of making reinforced concrete | |
| DE19752515A1 (en) | 1997-11-27 | 1999-06-02 | Haeussler Planung Gmbh | Method and machine for the production of rolled-up reinforcing bar mats |
| AUPQ356699A0 (en) * | 1999-10-21 | 1999-11-11 | Bhp Steel (Rp) Pty Ltd | A rollable mesh apparatus |
| DK1856346T3 (en) | 2005-02-17 | 2020-07-13 | Pedax Gmbh | Method and device for manufacturing a concrete reinforcement mesh |
| DE102013111064A1 (en) | 2013-10-07 | 2015-04-09 | Häussler Innovation GmbH | Reinforcing steel bar mat, method for its production and method for its laying |
| DE102019125300A1 (en) | 2019-09-19 | 2021-03-25 | Häussler Innovation GmbH | Method for the reinforcement of a reinforced concrete component |
-
2021
- 2021-07-05 DE DE102021117313.2A patent/DE102021117313B4/en active Active
-
2022
- 2022-05-11 EP EP22729075.6A patent/EP4366895B1/en active Active
- 2022-05-11 WO PCT/EP2022/062742 patent/WO2023280456A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021117313B4 (en) | 2024-07-18 |
| DE102021117313A1 (en) | 2023-01-05 |
| EP4366895A1 (en) | 2024-05-15 |
| EP4366895C0 (en) | 2025-03-26 |
| WO2023280456A1 (en) | 2023-01-12 |
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