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EP3921490B1 - Assembly comprising a mounting system and an anchoring device and a method for mounting an assembly - Google Patents

Assembly comprising a mounting system and an anchoring device and a method for mounting an assembly Download PDF

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Publication number
EP3921490B1
EP3921490B1 EP19832701.7A EP19832701A EP3921490B1 EP 3921490 B1 EP3921490 B1 EP 3921490B1 EP 19832701 A EP19832701 A EP 19832701A EP 3921490 B1 EP3921490 B1 EP 3921490B1
Authority
EP
European Patent Office
Prior art keywords
anchoring device
wings
formwork
mounting system
holding region
Prior art date
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Active
Application number
EP19832701.7A
Other languages
German (de)
French (fr)
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EP3921490A1 (en
EP3921490C0 (en
Inventor
Pino Albanese
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Individual
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Publication of EP3921490C0 publication Critical patent/EP3921490C0/en
Publication of EP3921490B1 publication Critical patent/EP3921490B1/en
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Classifications

    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4114—Elements with sockets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18—Spacers of metal or substantially of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/06—Consoles; Brackets
    • E04G5/062—Consoles; Brackets specially adapted for attachment to building walls

Definitions

  • the subject matter of the invention is an arrangement comprising an anchoring device and a mounting system according to the preamble of patent claim 1 and a method for mounting an arrangement with an anchoring device and a mounting system on a formwork for the construction of a reinforced concrete wall.
  • Anchoring devices are inserted into the concrete walls in order to be able to attach threaded rods and hang brackets on which scaffolding boards and railings are laid after the wall has been stripped.
  • the anchoring devices are nailed to the formwork panels before concreting and are therefore precisely positioned and cannot be moved on the formwork or even separated from it when the liquid concrete is poured in if the fastening is carried out using appropriate means.
  • metal formwork especially large-area formwork, there is no way of connecting the anchoring devices to the formwork in a way that prevents them from shifting.
  • anchoring devices are attached to the metal formwork with magnets, there is a latent risk that when the liquid concrete is poured in, the anchoring devices will be displaced along the surface of the formwork by the inflowing liquid concrete mass, despite the high magnetic attraction forces. Even a displacement of a few millimeters means that a bracket can no longer be attached to the concrete wall at the intended location. If the anchoring device is even slightly rotated on its own axis during the displacement, it will no longer be possible to attach an anchor hook.
  • an anchor attached to the anchoring device e.g. a threaded rod, protrudes from the wall at an angle and can no longer be used.
  • anchoring devices When constructing pillars with a round or square cross-section, with internal formwork and single-sided walls, there is no possibility of attaching anchoring devices to the formwork, as this is no longer possible on the inside after the reinforcements have been attached outside. Nevertheless, anchoring devices are also necessary on internal formwork, column formwork and single-sided formwork in order to hang brackets or other elements that must be supported by the wall or pillar to be created.
  • CH 696 403 A5 shows an anchoring box for anchoring a console in a concrete wall.
  • EP 3 190 244 A1 describes a threaded sleeve for anchoring threaded rods in a concrete structure.
  • the known anchoring devices cannot be used for interior, column and single-sided formwork, or can only be used with great difficulty and imprecision.
  • An object of the present invention is to provide an arrangement which enables the positioning of the anchoring devices on metal formwork, on column and pillar inner formwork and on single-sided formwork at the calculated location and in particular holds the anchoring device precisely and securely at the intended location even during the pouring of the liquid concrete and during the vibration of the concrete.
  • the latter can be attached to an anchoring device without tools, so that after its connection to reinforcing iron, the anchoring device with its opening closed by a cover is held tightly pressed against the formwork.
  • the contact pressure is achieved by the elasticity of the two holding and mounting areas when they are attached to the reinforcement with iron ties.
  • the rod-shaped or grid-like assembly areas comprise a grid frame and a plurality of rungs arranged in the grid frame or a number of rods which allow the passage of liquid concrete and do not negatively affect the homogeneity and strength of the wall.
  • the assembly system can be attached to the grid frame and/or to the rungs or rods using the reinforcing iron, for example using iron ties such as those used when laying reinforcing iron.
  • the central area of the mounting system encompasses the back of the anchoring box and has retaining elements that hook onto the anchoring device and thus form an intimate connection to the anchoring device.
  • the contact forces on the back of the anchoring device are taken over by the central area and are independent of the forces of the Retaining elements. The latter provide the positive or frictional connection to the anchoring device until it is mounted on the reinforcing bars.
  • the two wings formed by bars or grids, which are connected by their roots to the central area of the assembly system, can be in one plane or arranged in a slight V-shape in order to increase the contact force on the formwork by bracing them to the reinforcement.
  • the frame and the rungs as well as the elements that form the central area of a grid run perpendicular to the plane formed by the frame of the wings. This allows a high level of stability orthogonal to the wing surfaces with a minimum of plastic material from which the device can be made.
  • the assembly system can be made of sheet metal, milled, stamped or even as a deep-drawn part, or of a metal die-cast.
  • the mounting system can be used on anchoring devices made of metal or plastic and those with a round or rectangular cross-section.
  • the mounting system can also be part of the anchoring device, which, however, does not constitute part of the invention.
  • Reference number 1 in the figures shows a mounting system for the temporary mounting of an anchoring device 3 in perspective.
  • the mounting system 1 comprises two fastening elements, referred to as wings 5 for short, which protrude laterally from a central holding area 15 and which comprise a substantially rectangular grid frame 7. This can be divided into regular or irregular surface sections 11 by a plurality of rungs 9.
  • the two wings 5 are connected to the central holding area 15 with their roots 13.
  • the central holding area 15 has the shape of an upside-down V.
  • the legs 16 forming the central holding area 15, there can be two, three or more, are connected at their upper ends by essentially horizontal or curved base frames 17.
  • the base frames 17 thus form the backbone of the holding area 15.
  • the base frames 17 are connected to one another by a transverse beam 19.
  • the beam 19 has at least one end a hook 21 which, as will be described later, is intended to engage around a retaining rod 23 on the anchoring device 3.
  • a beam 19 constructed from two sections 19' designed to save material is used. This can also be hook-shaped at least at one end.
  • locking and holding means 25 are formed, which are intended and suitable to engage or rest on corresponding projections 27 on the side walls of the anchoring device 3 ( Fig. 5 ).
  • locking and retaining means 25 can be attached or molded onto the grid frame 7.
  • locking and retaining means 25 can also be formed simultaneously on the legs 16 and on the grid frame 7.
  • the two lattice frames 7, which form the two wings 5, can have a rectangular cross-section; alternatively, their wing ends can also be triangular or arched.
  • the wings 5 can lie in a common plane or be made to extend slightly upwards in a V-shape.
  • the assembly system 1 can be made from plastic using an injection molding process; alternatively, it can also be made from sheet metal as a stamped/bent part. It would also be possible to produce the device from a metal die cast. If large forces have to be absorbed, it is possible to use a fiber-reinforced plastic.
  • the wings 5 can also be constructed on individual or multiple outwardly projecting bars 9 attached to the holding area 15, which do not have any rungs 9 connecting the bars 9 to one another ( Fig. 1b ). Two or more rods 9 can form the two wings 5 at the holding area 15. An illustration of this embodiment shows Figure 1b .
  • the design of the strength of the mounting system 1 for an anchoring device 3 should enable a construction worker to bend the wings 5 to such an extent that after mounting an anchoring device 3 on a wall reinforcement, the anchoring device 3 is pressed against the formwork panel 29 with such a force that when the liquid concrete is poured in, an intimate contact of the closure cover 31 on the anchoring device 3, with which the opening of the anchoring device 3 is closed during the pouring process, rests snugly and in particular immovably on the formwork panel 29.
  • the anchoring device 3 is one that is made of metal and, for example, in the EP 3 358 104 described, the example in the description is used as the basis.
  • an anchoring box 3 made of metal can be replaced by one made of plastic, the spatial shape of which can be the same as or different from that shown.
  • the shape of the central holding area 15 is adapted to the shape of the anchoring device 3 used in each case, which is to be attached to a formwork.
  • the mounting system 1 is, as in the Figures 3 to 5 shown, pushed onto the anchoring device 3 from above and engages with the locking and holding means 25 on projections 27 on the side surfaces and/or front surfaces of the anchoring device 3.
  • the hook-shaped end of the carrier 19 engages around the retaining rod 23, if one is present ( Fig. 3 ).
  • Figure 4b It is evident that the mounting system 1 is tightly fitted to the top of the anchoring device 3 or is tightly pulled to the anchoring device 3 by the locking and holding means 25.
  • the anchoring device 3 is shown in the Figures 3 and 4 not in the operating and use position, ie the closure cover 31 is shown lying vertically, but the anchoring device 3 stands on the closure cover 31.
  • rods or grids can be attached to the anchoring device 3, for example by welding, or can be manufactured directly as part of the anchoring device, by means of which the anchoring device can be mounted independently of the formwork panel 29 directly on the reinforcement 33 for the wall.
  • rods or grids can be attached to the anchoring device 3, for example by welding, or can be manufactured directly as part of the anchoring device, by means of which the anchoring device can be mounted independently of the formwork panel 29 directly on the reinforcement 33 for the wall.
  • these alternatives do not form part of the invention.
  • the operating position which the mounted anchoring device 3 assumes is Figure 5 shown in a view from above.
  • the formwork panel 29 is in a vertical direction when a wall is being constructed.
  • Reinforcing irons 33 are spaced apart from the inner side 29' of the formwork panel 29, which is aligned towards the reinforcement.
  • the reinforcing irons 33 are at a minimum distance from the inner wall 29', which prevents the reinforcing irons from rusting through and moisture from diffusing into the wall. This distance of the reinforcing irons 33 from the inner side 29' of the formwork panel 29 is sufficient to bend the wings 5 in such a way as to press the anchoring device 3 against the inner side 29' with a force F.
  • the two wings 5 are either bent from an initially V-shaped position into a position parallel to the formwork or, if the formwork initially has wings 5 lying in one plane, the wings 5 are bent in the direction of the formwork panel 29 ( Figure 5 ).
  • the connection between the wings 5 or the anchoring device 1 with the reinforcing iron 33 is made using known binding wires 35, which wrap around the reinforcing iron 33 and/or the rods of the wings 5 and are twisted in a conventional manner.
  • the mounting system 1 can also be used on formwork for ceilings or on the reinforcement of floors to enable anchoring to floor surfaces.
  • the formwork panels 29 can be lifted off the wall in a known manner and the cover 31 can be removed from the anchoring device 3. The interior of the anchoring device 3 is then freely accessible for hanging a bracket or another element.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

Gegenstand der Erfindung ist eine Anordnung umfassend eine Verankerungsvorrichtung und ein Montagesystem gemäss dem Oberbegriff des Patentanspruchs 1 und ein Verfahren zur Montage einer Anordnung mit einer Verankerungsvorrichtung und einem Montagesystem an einer Schalung für die Erstellung einer armierten Wand aus Beton.The subject matter of the invention is an arrangement comprising an anchoring device and a mounting system according to the preamble of patent claim 1 and a method for mounting an arrangement with an anchoring device and a mounting system on a formwork for the construction of a reinforced concrete wall.

Verankerungsvorrichtungen werden in die Wände aus Beton eingesetzt, um nach dem Ausschalen der erstellten Wand Gewindestäbe befestigen und Konsolen einhängen zu können, auf denen Gerüstbretter und Geländer verlegt werden. Bei Schalungen aus Holz werden die Verankerungsvorrichtungen vor dem Betonieren an die Schalungstafeln aufgenagelt und sind dadurch präzise positioniert und können auch beim Einfüllen des flüssigen Betons nicht auf der Schalung verschoben oder sogar von dieser getrennt werden, falls die Befestigung mit entsprechenden Mitteln vorgenommen wird. Bei Schalungen aus Metall, insbesondere Grossflächenschalungen, besteht keine Möglichkeit, die Verankerungsvorrichtungen verschiebungsfest mit der Schalung zu verbinden. Werden die Verankerungsvorrichtungen mit Magneten an den Metallschalungen befestigt, so besteht die latente Gefahr, dass beim Einfüllen des flüssigen Betons trotz hohen magnetischen Anziehungskräften die Verankerungsvorrichtungen durch die einfliessende flüssige Betonmasse entlang der Oberfläche der Schalung verschoben werden. Bereits eine Verschiebung um einige Millimeter bedeutet, dass eine Konsole nicht mehr an der vorgesehenen Stelle an der betonierten Wand befestigt werden kann. Wird die Verankerungsvorrichtung sogar um die eigene Achse während der Verschiebung etwas gedreht, so lässt sich auch kein Ankerhaken mehr einhängen.Anchoring devices are inserted into the concrete walls in order to be able to attach threaded rods and hang brackets on which scaffolding boards and railings are laid after the wall has been stripped. In the case of wooden formwork, the anchoring devices are nailed to the formwork panels before concreting and are therefore precisely positioned and cannot be moved on the formwork or even separated from it when the liquid concrete is poured in if the fastening is carried out using appropriate means. In the case of metal formwork, especially large-area formwork, there is no way of connecting the anchoring devices to the formwork in a way that prevents them from shifting. If the If anchoring devices are attached to the metal formwork with magnets, there is a latent risk that when the liquid concrete is poured in, the anchoring devices will be displaced along the surface of the formwork by the inflowing liquid concrete mass, despite the high magnetic attraction forces. Even a displacement of a few millimeters means that a bracket can no longer be attached to the concrete wall at the intended location. If the anchoring device is even slightly rotated on its own axis during the displacement, it will no longer be possible to attach an anchor hook.

Auch bei in die Wand hineingedrückten Verankerungsvorrichtungen lässt sich ein Haken nicht mehr einhängen. Bei schräggestellten Verankerungsvorrichtungen ragt ein in der Verankerungsvorrichtung befestigter Anker, z.B. eine Gewindestange, schräg aus der Wand und kann nicht mehr verwendet werden.It is also no longer possible to hook an anchoring device into the wall. If the anchoring device is at an angle, an anchor attached to the anchoring device, e.g. a threaded rod, protrudes from the wall at an angle and can no longer be used.

Bei der Erstellung von Pfeilern mit rundem oder eckigem Querschnitt, bei Innenschalungen sowie einhäuptigen Wänden besteht keine Möglichkeit, Verankerungsvorrichtungen an der Schalung anzubringen, da dies auf der Innenseite nach dem Anbringen ausserhalb der Armierungen nicht mehr möglich ist. Dennoch sind auch an Innen-, Säulenschalungen und an einhäuptigen Schalungen Verankerungsvorrichtungen notwendig, um einerseits Konsolen aufzuhängen oder auch weitere Elemente, die von der zu erzeugenden Wand oder dem Pfeiler getragen werden müssen.When constructing pillars with a round or square cross-section, with internal formwork and single-sided walls, there is no possibility of attaching anchoring devices to the formwork, as this is no longer possible on the inside after the reinforcements have been attached outside. Nevertheless, anchoring devices are also necessary on internal formwork, column formwork and single-sided formwork in order to hang brackets or other elements that must be supported by the wall or pillar to be created.

CH 696 403 A5 zeigt eine Verankerungsbüchse für die Verankerung einer Konsole in einer Betonwand. CH 696 403 A5 shows an anchoring box for anchoring a console in a concrete wall.

EP 3 190 244 A1 beschreibt eine Gewindehülse zur Verankerung von Gewindestäben in einem Betonbauwerk. EP 3 190 244 A1 describes a threaded sleeve for anchoring threaded rods in a concrete structure.

Die bekannten Verankerungsvorrichtungen können bei Innen-, Säulenschalungen und einhäuptigen Schalungen nicht oder nur sehr schwer und unpräzise eingesetzt werden.The known anchoring devices cannot be used for interior, column and single-sided formwork, or can only be used with great difficulty and imprecision.

Eine Aufgabe der vorliegenden Erfindung ist die Schaffung einer Anordnung, welche die Positionierung der Verankerungsvorrichtungen an aus Metall bestehenden Schalungen, an Säulen- und Pfeiler-Innenschalungen sowie einhäuptigen Schalungen an der berechneten Stelle ermöglicht und insbesondere die Verankerungsvorrichtung auch während des Einfüllens des flüssigen Betons und während des Vibrierens des Betons präzise und sicher an der vorgesehenen Stelle festhält.An object of the present invention is to provide an arrangement which enables the positioning of the anchoring devices on metal formwork, on column and pillar inner formwork and on single-sided formwork at the calculated location and in particular holds the anchoring device precisely and securely at the intended location even during the pouring of the liquid concrete and during the vibration of the concrete.

Eine weitere Aufgabe der Erfindung besteht darin, dass das System einerseits kostengünstig herstellbar ist und andererseits das Verfahren zu dessen Verbindung mit Armierungseisen mit geringem Aufwand ermöglicht.A further object of the invention is that the system can be produced cost-effectively on the one hand and that the method for connecting it to reinforcing iron on the other hand enables the method to be carried out with little effort.

Gelöst wird diese Aufgabe durch eine Anordnung gemäss den Merkmalen des Patentanspruchs 1 und ein Verfahren gemäss den Merkmalen des Patentanspruchs 7. Vorteilhafte Ausgestaltungen der Vorrichtung sind in den abhängigen Ansprüchen umschrieben.This object is achieved by an arrangement according to the features of patent claim 1 and a method according to the features of patent claim 7. Advantageous embodiments of the device are described in the dependent claims.

Durch die flügelähnliche Ausbildung des Montagesystems lässt sich letzteres werkzeuglos auf einer Verankerungsvorrichtung befestigen, derart dass nach dessen Verbindung mit Armierungseisen die Verankerungsvorrichtung mit deren durch einen Deckel verschlossene Öffnung satt an die Schalung angepresst gehalten wird.Due to the wing-like design of the mounting system, the latter can be attached to an anchoring device without tools, so that after its connection to reinforcing iron, the anchoring device with its opening closed by a cover is held tightly pressed against the formwork.

Die Anpresskraft erfolgt durch die Elastizität der beiden Halte- und Montagebereiche, wenn diese mit Eisenbindern an der Armierung befestigt sind.The contact pressure is achieved by the elasticity of the two holding and mounting areas when they are attached to the reinforcement with iron ties.

Die stabförmig oder gitterartig ausgebildeten Montagebereiche umfassen einen Gitterrahmen und eine Mehrzahl von im Gitterrahmen angeordneten Sprossen oder eine Anzahl von Stäben, welche den Durchtritt von flüssigem Beton ermöglichen und die Homogenität und Festigkeit der Wand nicht negativ beeinflussen. An den Gitterrahmen und/oder an den Sprossen oder Stäben kann das Montagesystem mit den Armierungseisen, zum Beispiel mit Eisenbindern wie sie bei der Verlegung von Armierungseisen verwendet werden, befestigt werden.The rod-shaped or grid-like assembly areas comprise a grid frame and a plurality of rungs arranged in the grid frame or a number of rods which allow the passage of liquid concrete and do not negatively affect the homogeneity and strength of the wall. The assembly system can be attached to the grid frame and/or to the rungs or rods using the reinforcing iron, for example using iron ties such as those used when laying reinforcing iron.

Der zentrale Bereich des Montagesystems umgreift den Rücken der Verankerungsdose und weist Rückhaltemittel auf, die sich an der Verankerungsvorrichtung einhaken und so eine innige Verbindung zur Verankerungsvorrichtung bilden. Die Anpresskräfte auf dem Rücken der Verankerungsvorrichtung werden vom zentralen Bereich übernommen und sind unabhängig von den Kräften der Rückhalteelemente. Letztere übernehmen die form- oder reibschlüssige Verbindung zur Verankerungsvorrichtung bis zur Montage an Armierungsstäben.The central area of the mounting system encompasses the back of the anchoring box and has retaining elements that hook onto the anchoring device and thus form an intimate connection to the anchoring device. The contact forces on the back of the anchoring device are taken over by the central area and are independent of the forces of the Retaining elements. The latter provide the positive or frictional connection to the anchoring device until it is mounted on the reinforcing bars.

Die beiden durch Stäbe oder Gitter gebildeten Flügel, die mit deren Wurzeln am zentralen Bereich des Montagesystems verbunden sind, können in einer Ebene liegen oder leicht V-förmig angeordnet sein, um durch Verspannen an der Armierung die Anpresskraft an die Schalung zu erhöhen. Vorzugsweise verlaufen der Rahmen und die Sprossen sowie die Elemente, welche den zentralen Bereich eines Gitters bilden, lotrecht zu den durch den Rahmen der Flügel gebildeten Ebene. Dies ermöglicht eine hohe Stabilität orthogonal zu den Flügelflächen mit einem Minimum an Kunststoffmaterial, aus dem die Vorrichtung hergestellt werden kann. Selbstverständlich kann das Montagesystem, Fräs-, Stanz- oder auch als Tiefziehteil aus Blech bestehen oder aus einem Metalldruckguss.The two wings, formed by bars or grids, which are connected by their roots to the central area of the assembly system, can be in one plane or arranged in a slight V-shape in order to increase the contact force on the formwork by bracing them to the reinforcement. Preferably, the frame and the rungs as well as the elements that form the central area of a grid run perpendicular to the plane formed by the frame of the wings. This allows a high level of stability orthogonal to the wing surfaces with a minimum of plastic material from which the device can be made. Of course, the assembly system can be made of sheet metal, milled, stamped or even as a deep-drawn part, or of a metal die-cast.

Das Montagesystem kann an Verankerungsvorrichtungen aus Metall oder aus Kunststoff und solche, die einen runden oder rechteckigen Querschnitt aufweisen, eingesetzt werden.The mounting system can be used on anchoring devices made of metal or plastic and those with a round or rectangular cross-section.

Das Montagesystem kann auch Teil der Verankerungsvorrichtung sein, was allerdings keinen Teil der Erfindung darstellt.The mounting system can also be part of the anchoring device, which, however, does not constitute part of the invention.

Anhand von illustrierten Ausführungsbeispielen wird die Erfindung näher umschrieben. Es zeigen:

Figur 1a
eine erste Ausführung des Montagesystems in perspektivischer Darstellung,
Figur 1b
ein Montagesystems mit aus Stäben gebildeten Trägern,
Figur 2
eine weitere Ausführung des Montagesystems,
Figur 3
in Perspektive eine erfindungsgemäße Anordnung mit einer Verankerungsvorrichtung mit dem aufgesetzten Montagesystem zur Befestigung der Verankerungsvorrichtung,
Figur 4a
eine Rückansicht der erfindungsgemäßen Anordnung mit dem Montagesystem über der Verankerungsvorrichtung,
Figur 4b
eine Rückansicht der erfindungsgemäßen Anordnung gemäss Figur 3,
Figur 5
eine schematische Darstellung einer erfindungsgemäßen, an einer Schalung angeordneten, mit der Armierung verbundenen Anordnung.
The invention is described in more detail using illustrated embodiments. They show:
Figure 1a
a first version of the assembly system in perspective view,
Figure 1b
a mounting system with supports made of bars,
Figure 2
another version of the mounting system,
Figure 3
in perspective an arrangement according to the invention with an anchoring device with the attached mounting system for fastening the anchoring device,
Figure 4a
a rear view of the arrangement according to the invention with the mounting system above the anchoring device,
Figure 4b
a rear view of the arrangement according to the invention according to Figure 3 ,
Figure 5
a schematic representation of an arrangement according to the invention arranged on a formwork and connected to the reinforcement.

Mit Bezugszeichen 1 ist in den Figuren ein Montagesystem für die temporäre Montage einer Verankerungsvorrichtung 3 in Perspektive dargestellt. Das Montagesystem 1 umfasst zwei von einem zentralen Haltebereich 15 seitlich wegragende Befestigungselemente, kurz Flügel 5 bezeichnet, welche einen im Wesentlichen rechteckförmigen Gitterrahmen 7 umfassen. Dieser kann durch eine Mehrzahl von Sprossen 9 in regelmässige oder unregelmässige Flächenabschnitte 11 unterteilt sein. Die beiden Flügel 5 sind mit deren Wurzeln 13 am zentralen Haltebereich 15 angebunden. Der zentrale Haltebereich 15 weist etwa die Gestalt eines auf dem Kopf stehenden V's auf. Die den zentralen Haltebereich 15 bildenden Schenkel 16, es können zwei, drei oder mehr sein, sind an deren oben liegenden Enden durch im Wesentlichen horizontal oder bogenförmig verlaufende Basisspanten 17 verbunden. Die Basisspanten 17 bilden damit das Rückgrat des Haltebereichs 15.Reference number 1 in the figures shows a mounting system for the temporary mounting of an anchoring device 3 in perspective. The mounting system 1 comprises two fastening elements, referred to as wings 5 for short, which protrude laterally from a central holding area 15 and which comprise a substantially rectangular grid frame 7. This can be divided into regular or irregular surface sections 11 by a plurality of rungs 9. The two wings 5 are connected to the central holding area 15 with their roots 13. The The central holding area 15 has the shape of an upside-down V. The legs 16 forming the central holding area 15, there can be two, three or more, are connected at their upper ends by essentially horizontal or curved base frames 17. The base frames 17 thus form the backbone of the holding area 15.

In der ersten Ausgestaltung gemäss Figur 1a sind die Basisspanten 17 durch einen quer verlaufenden Träger 19 miteinander verbunden. Der Träger 19 weist mindestens an seinem einen Ende einen Haken 21 auf, der, wie später beschrieben wird, einen Rückhaltestab 23 an der Verankerungsvorrichtung 3 zu umgreifen bestimmt ist.In the first design according to Figure 1a the base frames 17 are connected to one another by a transverse beam 19. The beam 19 has at least one end a hook 21 which, as will be described later, is intended to engage around a retaining rod 23 on the anchoring device 3.

In der zweiten Ausgestaltung gemäss Figur 2 tritt an die Stelle eines massiven durchgehenden Trägers 19 ein auf die Einsparung von Material ausgelegter aus zwei Abschnitten 19' aufgebauter Träger 19. Auch dieser kann mindestens einendig hakenförmig ausgebildet sein.In the second embodiment according to Figure 2 Instead of a solid continuous beam 19, a beam 19 constructed from two sections 19' designed to save material is used. This can also be hook-shaped at least at one end.

In der ersten Ausgestaltung gemäss Figur 1 sind an den Innenseiten der Schenkel 16 des zentralen Haltebereichs 15 Rast- und Haltemittel 25 angeformt, welche dazu bestimmt und geeignet sind, an entsprechenden Vorsprüngen 27 an den seitlichen Wänden der Verankerungsvorrichtung 3 einzurasten bzw. anzuliegen (Fig. 5). In der Ausgestaltung gemäss Figur 2 können Rast- und Rückhaltemittel 25 am Gitterrahmen 7 befestigt oder angeformt sein. Selbstverständlich können in den Ausführungsbeispielen auch gleichzeitig an den Schenkeln 16 und am Gitterrahmen 7 Rast- und Rückhaltemittel 25 ausgebildet sein.In the first design according to Figure 1 On the inner sides of the legs 16 of the central holding area 15, locking and holding means 25 are formed, which are intended and suitable to engage or rest on corresponding projections 27 on the side walls of the anchoring device 3 ( Fig. 5 ). In the design according to Figure 2 locking and retaining means 25 can be attached or molded onto the grid frame 7. Of course, in the exemplary embodiments, locking and retaining means 25 can also be formed simultaneously on the legs 16 and on the grid frame 7.

Die beiden Gitterrahmen 7, welche die beiden Flügel 5 bilden, können einen rechteckförmigen Querschnitt aufweisen; alternativ können deren Flügelenden auch dreieck- oder bogenförmig gestaltet sein. Die Flügel 5 können in einer gemeinsamen Ebene liegen oder leicht V-förmig nach oben verlaufend hergestellt sein.The two lattice frames 7, which form the two wings 5, can have a rectangular cross-section; alternatively, their wing ends can also be triangular or arched. The wings 5 can lie in a common plane or be made to extend slightly upwards in a V-shape.

Das Montagesystem 1 kann aus Kunststoff im Spritzverfahren hergestellt sein; alternativ kann es auch aus Blech als Stanz-/Biegeteil hergestellt werden. Weiter bestünde die Möglichkeit, die Vorrichtung aus einem Metalldruckguss zu erzeugen. Im Falle von der Aufnahme grosser Kräfte besteht die Möglichkeit, einen faserverstärkten Kunststoff einzusetzen.The assembly system 1 can be made from plastic using an injection molding process; alternatively, it can also be made from sheet metal as a stamped/bent part. It would also be possible to produce the device from a metal die cast. If large forces have to be absorbed, it is possible to use a fiber-reinforced plastic.

Die Flügel 5 können an der Stelle von Gitterrahmen 7 auch an am Haltebereich 15 angebrachten einzelnen oder mehreren nach aussen ragenden Stäben 9 aufgebaut sein, die keine die Stäbe 9 gegenseitig verbindende Sprossen 9 aufweisen (Fig. 1b). Am Haltebereich 15 können so zwei oder mehr Stäbe 9 die beiden Flügel 5 bilden. Eine Darstellung dieser Ausführungsform zeigt Figur 1b.Instead of the lattice frame 7, the wings 5 can also be constructed on individual or multiple outwardly projecting bars 9 attached to the holding area 15, which do not have any rungs 9 connecting the bars 9 to one another ( Fig. 1b ). Two or more rods 9 can form the two wings 5 at the holding area 15. An illustration of this embodiment shows Figure 1b .

Die Auslegung der Festigkeit des Montagesystems 1 für eine Verankerungsvorrichtung 3 soll es einem Bauarbeiter ermöglichen, die Flügel 5 soweit zu biegen, dass nach der Montage einer Verankerungsvorrichtung 3 an einer Wandarmierung die Verankerungsvorrichtung 3 mit einer solchen Kraft gegen die Schalungsplatte 29 gepresst wird, dass beim Einfüllen des flüssigen Betons ein inniger Kontakt des Verschlussdeckels 31 an der Verankerungsvorrichtung 3, mit welchem die Öffnung der Verankerungsvorrichtung 3 während des Giessvorgangs verschlossen ist, satt und insbesondere unverschiebbar auf der Schalungsplatte 29 aufliegt.The design of the strength of the mounting system 1 for an anchoring device 3 should enable a construction worker to bend the wings 5 to such an extent that after mounting an anchoring device 3 on a wall reinforcement, the anchoring device 3 is pressed against the formwork panel 29 with such a force that when the liquid concrete is poured in, an intimate contact of the closure cover 31 on the anchoring device 3, with which the opening of the anchoring device 3 is closed during the pouring process, rests snugly and in particular immovably on the formwork panel 29.

Anhand der Figuren 3, 4a und 4b wird die Anordnung des Montagesystems 1 über und auf der Verankerungsvorrichtung 3 dargestellt und erklärt. Als Verankerungsvorrichtung 3 wird eine solche, die aus Metall hergestellt ist und beispielsweise in der EP 3 358 104 beschrieben wird, dem Beispiel in der Beschreibung zugrunde gelegt. Selbstverständlich kann an die Stelle einer Verankerungsdose 3 aus Metall eine solche aus Kunststoff treten, deren Raumform gleich oder von der dargestellten abweichend sein kann. Vorzugsweise wird die Formgebung des zentralen Haltebereichs 15 an die Gestalt der jeweils eingesetzten Verankerungsvorrichtung 3, die an einer Schalung befestigt werden soll, angepasst.Based on the Figures 3 , 4a and 4b The arrangement of the mounting system 1 above and on the anchoring device 3 is shown and explained. The anchoring device 3 is one that is made of metal and, for example, in the EP 3 358 104 described, the example in the description is used as the basis. Of course, an anchoring box 3 made of metal can be replaced by one made of plastic, the spatial shape of which can be the same as or different from that shown. Preferably, the shape of the central holding area 15 is adapted to the shape of the anchoring device 3 used in each case, which is to be attached to a formwork.

Das Montagesystem 1 wird, wie in den Figuren 3 bis 5 dargestellt, von oben auf die Verankerungsvorrichtung 3 aufgeschoben und rastet mit den Rast- und Haltemitteln 25 an Vorsprüngen 27 an den Seitenflächen und/oder Stirnflächen der Verankerungsvorrichtung 3 ein. Das hakenförmige Ende des Trägers 19 umgreift dabei den Rückhaltestab 23, sofern ein solcher vorhanden ist (Fig. 3). Insbesondere aus Figur 4b ist ersichtlich, dass das Montagesystem 1 an der Oberseite der Verankerungsvorrichtung 3 satt anliegt bzw. durch die Rast- und Haltemittel 25 satt an die Verankerungsvorrichtung 3 angezogen wird. Der besseren Übersichtlichkeit halber ist die Verankerungsvorrichtung 3 in den Figuren 3 und 4 nicht in Betriebs- und Verwendungsstellung, d.h. Verschlussdeckel 31 vertikal liegend dargestellt, sondern die Verankerungsvorrichtung 3 steht auf dem Verschlussdeckel 31.The mounting system 1 is, as in the Figures 3 to 5 shown, pushed onto the anchoring device 3 from above and engages with the locking and holding means 25 on projections 27 on the side surfaces and/or front surfaces of the anchoring device 3. The hook-shaped end of the carrier 19 engages around the retaining rod 23, if one is present ( Fig. 3 ). In particular, Figure 4b It is evident that the mounting system 1 is tightly fitted to the top of the anchoring device 3 or is tightly pulled to the anchoring device 3 by the locking and holding means 25. For the sake of better clarity, the anchoring device 3 is shown in the Figures 3 and 4 not in the operating and use position, ie the closure cover 31 is shown lying vertically, but the anchoring device 3 stands on the closure cover 31.

Alternativ zu auf die Verankerungsvorrichtung 3 aufgesetzten und mit einem mit diesem verbundenen Montagesystem 1 können an der Verankerungsvorrichtung 3, beispielsweise durch Schweissungen Stäbe oder Gitter befestigt sein, oder direkt als Teil der Verankerungsvorrichtung hergestellt sein, durch welche eine Montage der Verankerungsvorrichtung unabhängig von der Schalungsplatte 29 direkt an der Armierung 33 für die Wand erfolgen kann. Diese Alternativen stellen allerdings keinen Teil der Erfindung dar.As an alternative to the anchoring device 3 and a mounting system 1 connected to it, rods or grids can be attached to the anchoring device 3, for example by welding, or can be manufactured directly as part of the anchoring device, by means of which the anchoring device can be mounted independently of the formwork panel 29 directly on the reinforcement 33 for the wall. However, these alternatives do not form part of the invention.

Die Betriebsstellung, welche die montierte Verankerungsvorrichtung 3 einnimmt, ist aus Figur 5 in einer Aufsicht von oben dargestellt. Die Schalungsplatte 29 liegt allerdings in den meisten Fällen bei der Erstellung einer Wand in vertikaler Richtung. Beabstandet zur Innenseite 29' der Schalungsplatte 29, die zur Armierung hin ausgerichtet ist, liegen Armierungseisen 33. Die Armierungseisen 33 haben einen minimalen Abstand zur Innenwand 29', welcher das Durchrosten der Armierungseisen und die Feuchtigkeitsdiffusion in die Wand verhindert Dieser Abstand der Armierungseisen 33 von der Innenseite 29' der Schalungsplatte 29 genügt, die Flügel 5 derart zu biegen, um die Verankerungsvorrichtung 3 mit einer Kraft F an die Innenseite 29' anzupressen. Um diese Anpresskraft F zu erlangen, werden die beiden Flügel 5 entweder aus einer anfänglich V-förmigen Lage in eine parallel zur Schalung anliegenden Position gebogen oder, falls diese anfänglich in einer Ebene liegende Flügel 5 aufweist, werden die Flügel 5 in Richtung der Schalungsplatte 29 gebogen (Abbildung 5). Die Verbindung zwischen den Flügeln 5 bzw. der Verankerungsvorrichtung 1 mit den Armierungseisen 33 erfolgt mit bekannten Bindedrähten 35, welche das Armierungseisen 33 und/oder die Stäbe der Flügel 5 umschlingen und in herkömmlicher Weise verdreht werden. Selbstverständlich kann das Montagesystem 1 auch an Schalungen für Decken eingesetzt werden oder auf der Bewehrung von Böden, um Verankerungen an Bodenoberflächen zu ermöglichen.The operating position which the mounted anchoring device 3 assumes is Figure 5 shown in a view from above. However, in most cases the formwork panel 29 is in a vertical direction when a wall is being constructed. Reinforcing irons 33 are spaced apart from the inner side 29' of the formwork panel 29, which is aligned towards the reinforcement. The reinforcing irons 33 are at a minimum distance from the inner wall 29', which prevents the reinforcing irons from rusting through and moisture from diffusing into the wall. This distance of the reinforcing irons 33 from the inner side 29' of the formwork panel 29 is sufficient to bend the wings 5 in such a way as to press the anchoring device 3 against the inner side 29' with a force F. In order to achieve this pressing force F, the two wings 5 are either bent from an initially V-shaped position into a position parallel to the formwork or, if the formwork initially has wings 5 lying in one plane, the wings 5 are bent in the direction of the formwork panel 29 ( Figure 5 ). The connection between the wings 5 or the anchoring device 1 with the reinforcing iron 33 is made using known binding wires 35, which wrap around the reinforcing iron 33 and/or the rods of the wings 5 and are twisted in a conventional manner. Of course, the mounting system 1 can also be used on formwork for ceilings or on the reinforcement of floors to enable anchoring to floor surfaces.

Nach dem Giessen der Wand und der Aushärtung des Betons können die Schalungsplatten 29 in bekannter Weise von der Wand abgehoben und der Verschlussdeckel 31 von der Verankerungsvorrichtung 3 abgelöst werden. Das Innere der Verankerungsvorrichtung 3 ist danach zum Einhängen einer Konsole oder eines anderen Elements frei zugänglich.After the wall has been poured and the concrete has hardened, the formwork panels 29 can be lifted off the wall in a known manner and the cover 31 can be removed from the anchoring device 3. The interior of the anchoring device 3 is then freely accessible for hanging a bracket or another element.

Claims (8)

  1. An assembly comprising an anchoring device (3) and a mounting system (1) for mounting the anchoring device (3) during the building of walls, ceiling panels or floor slabs made of concrete on a formwork panel (29) made of metal, wood or plastic, wherein the mounting system (1) is fastenable on the anchoring device (3) without tools and comprises a central holding region (15), which is arranged on the anchoring device (3) in the fastened state, and wings (5), which are arranged on said central holding region (15) and are intended for docking and securing the anchoring device (3) on a reinforcement (33), wherein the shape of the central holding region (15) is adapted to the design of the anchoring device (3), characterized in that the anchoring device (3) is an anchoring socket with a rear portion, the central holding region (15) surrounds the rear portion of the anchoring device (3) and has retaining means that hook onto the anchoring device, establish a close-fitting connection to the anchoring device and provide a form-fitting and frictional connection to the anchoring device until the assembly is mounted on the reinforcement, wherein, when the anchoring device (3) is located below the mounting system (1), the central holding region (15) comprises a support (19) which extends perpendicular to the two wings (5), partially surrounds an upper side of the anchoring device (3) from above and is adjoined at the side by roots (13) of the wings (5), and in the operating position of the anchoring device (3), the wings (5) can be bent by reinforcing bars (33) that are spaced apart from the inner face (29') of the formwork panel (29), in such a way that said wings (5) make the anchoring device (3) pressable against the inner face (29') of the formwork panel (29) with a force, to which end the wings (5) can be bent either from an initially V-shaped position into a position in parallel with the formwork or from a position in a single plane towards the formwork panel (29).
  2. The assembly according to Claim 1, characterized in that the wings (5) comprise one or a plurality of rods (9) or grid frames (7).
  3. The assembly according to Claim 1 or 2, characterized in that the roots (13) of the wings (5) at the holding region (15) extend at an obtuse angle.
  4. The assembly according to any one of Claims 1 to 3, characterized in that, on the roots (13) of the wings (5) or of the rods (9) on the support (19), the retaining means are formed as latching and retaining means (25) for securing the mounting system (1) on the anchoring device (3).
  5. The assembly according to Claim 4, characterized in that the latching and retaining means (25) comprise tabs or projections which are configured to engage under or rest against an anchoring device (3).
  6. The assembly according to any one of Claims 1 to 5, characterized in that the wings (5) and the support (19) are made of plastic, sheet metal or injection-molded metal.
  7. A method for mounting an assembly with an anchoring device (3) and a mounting system (1) according to any one of Claims 1 to 6 on formwork for the construction of a reinforced wall made of concrete, characterized by the following steps:
    - attaching the mounting system (1), together with the central holding region (15), to the anchoring device, wherein the shape of the central holding region (15) is adapted to the design of the anchoring device (3),
    - attaching the mounting system (1), together with the anchoring device, on a reinforcement consisting of reinforcing bars (33) of a partial structure, wherein, in the operating position of the anchoring device (3), the wings (5) can be bent by reinforcing bars (33) that are spaced apart from the inner face (29') of the formwork panel (29) of the formwork, in such a way that said wings (5) press the anchoring device (3) against the inner face (29') of the formwork panel (29) with a force, to which end the wings (5) can be bent either from an initially V-shaped position into a position in parallel with the formwork or from a position in a single plane towards the formwork panel (29).
  8. The method according to Claim 7, characterized in that the mounting system (1) pretensions the anchoring device (3) against the formwork (29).
EP19832701.7A 2019-02-06 2019-12-23 Assembly comprising a mounting system and an anchoring device and a method for mounting an assembly Active EP3921490B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00142/19A CH715822A2 (en) 2019-02-06 2019-02-06 Assembly system for assembling an anchoring device and a method for assembling an anchoring device.
PCT/EP2019/086980 WO2020160833A1 (en) 2019-02-06 2019-12-23 Mounting system for mounting an anchoring device and method for mounting an anchoring device on a partial construction made of concrete

Publications (3)

Publication Number Publication Date
EP3921490A1 EP3921490A1 (en) 2021-12-15
EP3921490C0 EP3921490C0 (en) 2025-01-29
EP3921490B1 true EP3921490B1 (en) 2025-01-29

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EP19832701.7A Active EP3921490B1 (en) 2019-02-06 2019-12-23 Assembly comprising a mounting system and an anchoring device and a method for mounting an assembly

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EP (1) EP3921490B1 (en)
CH (1) CH715822A2 (en)
WO (1) WO2020160833A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279558A (en) * 2021-06-22 2021-08-20 中建三局集团有限公司 Self-climbing operation platform in vertical shaft
US20230417072A1 (en) * 2022-06-27 2023-12-28 JMR Technologies Thermally Insulated Tilt-Up Wall Lift and Brace Assemblies

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4073114A (en) * 1977-04-01 1978-02-14 Unistrut Corporation Insert assembly for use in pre-stressed concrete structures
EP1764448B1 (en) * 2005-09-16 2013-08-28 Laing O'Rourke Plc Fixing embedments in reinforced concrete

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US3289379A (en) * 1963-10-09 1966-12-06 John L Watts Hanger insert for prestressed concrete
CH696403A5 (en) * 2003-11-11 2007-05-31 System Albanese Anchor socket for anchoring console bracket in concrete wall has shaped opening allowing end of bracket to move only into assembly position which deviates from vertical work position
EP1688551B1 (en) * 2005-01-14 2006-10-04 HALFEN GmbH & CO. Kommanditgesellschaft Fixing element for a mounting rail and rail arrangement.
AU2009217422B2 (en) * 2008-09-24 2016-01-14 Leviat Pty Ltd Recess Former for Concrete Panel
CH712025A2 (en) * 2016-01-11 2017-07-14 Albanese Pino Threaded sleeve for anchoring components in a concrete structure, a positioning and anchor plate and a spacer tube.
CH713434A2 (en) 2017-02-01 2018-08-15 Albanese Pino Anchor box for the temporary attachment of a console for scaffolding and shuttering slabs to a substructure and a plug-in cover for the temporary closing of an anchorage box.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073114A (en) * 1977-04-01 1978-02-14 Unistrut Corporation Insert assembly for use in pre-stressed concrete structures
EP1764448B1 (en) * 2005-09-16 2013-08-28 Laing O'Rourke Plc Fixing embedments in reinforced concrete

Also Published As

Publication number Publication date
EP3921490A1 (en) 2021-12-15
EP3921490C0 (en) 2025-01-29
WO2020160833A1 (en) 2020-08-13
CH715822A2 (en) 2020-08-14

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