EP3933141B1 - Method for the production of a pre-cast concrete component - Google Patents

Method for the production of a pre-cast concrete component Download PDF

Info

Publication number
EP3933141B1
EP3933141B1 EP20183120.3A EP20183120A EP3933141B1 EP 3933141 B1 EP3933141 B1 EP 3933141B1 EP 20183120 A EP20183120 A EP 20183120A EP 3933141 B1 EP3933141 B1 EP 3933141B1
Authority
EP
European Patent Office
Prior art keywords
lifting
sleeve
component
precast concrete
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20183120.3A
Other languages
German (de)
French (fr)
Other versions
EP3933141A1 (en
Inventor
Michael Kispert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BTE Stelcon GmbH
Original Assignee
BTE Stelcon GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BTE Stelcon GmbH filed Critical BTE Stelcon GmbH
Priority to EP20183120.3A priority Critical patent/EP3933141B1/en
Priority to PL20183120.3T priority patent/PL3933141T3/en
Publication of EP3933141A1 publication Critical patent/EP3933141A1/en
Application granted granted Critical
Publication of EP3933141B1 publication Critical patent/EP3933141B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • E04G21/142Means in or on the elements for connecting same to handling apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00Pavings made of prefabricated single units
    • E01C5/005Individual couplings or spacer elements for joining the prefabricated units
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00Pavings made of prefabricated single units
    • E01C5/06Pavings made of prefabricated single units made of units with cement or like binders
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04Cores for anchor holes or the like around anchors embedded in the concrete

Definitions

  • the invention relates to a method for producing a precast concrete component, in particular a precast concrete slab, the component being manufactured in formwork and at least one lifting sleeve being introduced into the component during manufacture.
  • the precast concrete components or precast concrete slabs are used in particular as subsoil or trafficable subsoil for storage areas, parking and storage areas, for areas in the construction industry, for roads and the like.
  • Precast concrete components or precast concrete slabs of the type described above are basically known in different embodiments from practice. Especially with large-area precast concrete components or precast concrete slabs, both the transport and the handling and assembly at the installation site are often a challenge. In this connection it is known to provide transport anchors which are integrated into the precast concrete components and which can be fixed to a transport device such as a crane. In addition, it is known from practice to handle precast concrete components using vacuum lifting devices. This handling with vacuum lifting devices can be used both in the course of the assembly of the precast concrete components or precast concrete slabs and also during production when the precast concrete components have to be lifted out of a formwork, for example.
  • precast concrete components or precast concrete slabs are not suitable for all types of precast concrete components or precast concrete slabs.
  • vacuum lifting devices are used in precast concrete components or ready-made concrete slabs made of open-pored concrete cannot be used reliably, since the open-pored structure means that no secure fixation can be achieved.
  • JP 2003-112884 A describes a concrete component with a lifting sleeve.
  • the component can be fixed to a transport device by means of the lifting sleeve.
  • the lifting sleeve has a lifting chamber whose inner diameter is larger than the inner width of the sleeve shank.
  • a cap provided on the lower sleeve opening is removed, resulting in a downward drainage opening.
  • the invention is based on the technical problem of specifying a method for producing a precast concrete component, in particular a precast concrete slab, in which the component or the slab can be handled reliably and trouble-free and, in particular, can be fixed securely and reliably to a transport device.
  • the invention is based on the finding that the method according to the invention with the lifting sleeve concreted into the precast concrete component functionally reliable and easy handling of the precast concrete component or the precast concrete slab and in particular the reliable fixation on a transport device. This applies both to the production, in particular to the shuttering of the precast concrete component, and to the assembly.
  • the handling of the precast concrete component or the precast concrete slab, in particular the fixing to a transport device is carried out with the help of the lifting key, which is inserted into the sleeve shaft of the lifting sleeve and in the at least one lifting chamber and optionally also on the top side of the precast concrete component or precast concrete component underside can be transferred from an insertion position into an anchoring position.
  • the lifting key which is inserted into the sleeve shaft of the lifting sleeve and in the at least one lifting chamber and optionally also on the top side of the precast concrete component or precast concrete component underside can be transferred from an insertion position into an anchoring position.
  • inner diameter d K of the lifting chamber means in particular the largest inner diameter of the lifting chamber transversely, in particular perpendicular to the longitudinal extent or to the longitudinal axis A of the lifting sleeve.
  • inner width bs of the sleeve shank means in particular the largest inner width of the sleeve shank transversely, in particular perpendicular to the longitudinal extension or to the longitudinal axis A of the lifting sleeve or the sleeve shank and transversely, in particular perpendicular to the longitudinal center axis A Q of the cross-sectional area of the sleeve shank.
  • the ratio of the inner diameter d K of the lifting chamber to the inner width bs of the sleeve shaft is between 1.1:1 and 4:1, preferably between 1.5:1 and 3:1, preferably between 1.7: 1 and 2.2:1, most preferably between 1.9:1 and 2.1:1, for example about 2:1.
  • a component or a panel has two to six lifting sleeves, preferably two to four lifting sleeves and particularly preferably two lifting sleeves, which are embedded in concrete in the component or in the panel.
  • the embodiment with at least two lifting sleeves is based on the finding that the component or the plate can be fixed particularly reliably and securely to a transport device by at least two lifting sleeves embedded in concrete.
  • the lifting sleeve is hollow on the inside at least in regions and is preferably hollow on the inside over its entire length L or essentially over its entire length L.
  • the lifting sleeve is therefore recommended to have a cavity which extends in the direction of the longitudinal axis A of the lifting sleeve over its entire length.
  • the diameter of the cavity is expediently at least 70%, preferably at least 75%, very preferably at least 80% and particularly preferably at least 85% of the outer diameter of the lifting sleeve.
  • the lifting sleeve is embedded in concrete over its entire length L or essentially over its entire length L in the component.
  • length L of the lifting sleeve means in particular the greatest extension of the lifting sleeve along or in the direction of its longitudinal axis A.
  • the first sleeve opening is associated with the underside of the component or panel and is accessible from the underside of the component or panel.
  • underside of the component or panel means that side of the component or panel that faces the mounting substrate when the component or panel is in the installed state.
  • the at least one lifting chamber is designed as a hollow-cylindrical section of the lifting sleeve, which in particular has a round, preferably circular, cross-section with the inside diameter dK .
  • the cross section of the lifting chamber means in particular the cross section across, in particular perpendicular to the longitudinal axis A of the lifting sleeve. If, according to a particularly preferred embodiment, the lifting chamber is designed as a hollow-cylindrical section with a circular cross section, the inner diameter d K of the lifting chamber corresponds to the circle diameter or inner circle diameter of the cross-sectional area.
  • This embodiment is based on the finding that the lifting key - through the first sleeve opening assigned to the underside of the component - is inserted into the sleeve shaft and is transferred in the hollow-cylindrical lifting chamber, for example by a rotary movement, from an insertion position to an anchoring position, so that the precast concrete component or The precast concrete slab can be fixed to a transport device using the lifting sleeve and the lifting key.
  • the ratio of the length L H of the lifting chamber to the length L of the lifting sleeve is 1:12 to 1:4, preferably 1:10 to 1:6, preferably 1:9 to 1:7, for example 1:8 or is about 1:8.
  • length L H of the lifting chamber means the greatest extension of the lifting chamber in the longitudinal direction of the lifting sleeve or in the direction of the longitudinal axis A of the lifting sleeve.
  • the sleeve shank is designed as a hollow body, the inner length Ls of which is preferably greater than that inside width up to
  • inner length Ls of the sleeve shank means in particular the greatest inner length across, in particular perpendicular to the longitudinal axis A of the lifting sleeve and along or in the direction of the longitudinal center axis A Q of the cross-sectional area of the sleeve shank and thus across, in particular perpendicular to the inner width bs of the sleeve shank.
  • the ratio of the inner length Ls of the sleeve shank to the inner width bs of the sleeve shank is 1.1:1 to 4:1, preferably 1.5:1 to 3:1, preferably 1.7:1 to 2. 2:1, more preferably 1.9:1 to 2.1:1, for example about 2:1. It is preferred that the inner length Ls of the sleeve shank corresponds or essentially corresponds to the inner diameter d K of the lifting chamber.
  • the sleeve shank is designed as a hollow body, the cross-sectional area of which is provided as a rounded rectangle.
  • the sleeve shank is designed as a hollow body whose cross-sectional area is elliptical.
  • other cross-sectional geometries for the sleeve shaft are also within the scope of the invention, for example an oval, rectangular, square, triangular or the same cross-sectional geometry. It is essential that the inner diameter d K of the lifting chamber is larger than the inner width bs of the sleeve shank.
  • a particularly recommended embodiment of the invention is characterized in that the precast concrete component or a precast concrete slab is designed for a drivable subsoil, for example a drivable street, a drivable storage area, a drivable parking area, such as a parking deck or the like.
  • the thickness of a precast concrete slab is recommended to be 50 to 300 mm, preferably 100 to 250 mm and especially preferably 160 to 200 mm. It is recommended that a lifting sleeve extends over at least 70%, preferably over at least 80%, preferably over at least 90% and very particularly preferably over at least 95% of the thickness of the precast concrete component or the precast concrete slab.
  • a precast concrete slab is rectangular in plan view.
  • the side lengths of such a rectangular plate can each be 600 to 3000 mm, preferably 800 to 2500 mm, particularly preferably 1000 to 2200 mm.
  • the longitudinal axis A of the lifting sleeve is arranged transversely, in particular perpendicularly or essentially perpendicularly to the underside and/or the upper side of the component.
  • the upper side of the component means that side of the component which faces away from the mounting base in the mounted state. It is therefore within the scope of the invention for the longitudinal axis A of the lifting sleeve to be oriented transversely, in particular perpendicularly or essentially perpendicularly, to the mounting base when the precast concrete component or the precast concrete slab is in the assembled state.
  • the installation substrate means in particular the substrate or the ground on which the precast concrete component or the precast concrete slab is installed or laid.
  • the lifting chamber is assigned to the end of the sleeve.
  • the distance a between the lifting chamber and the sleeve end is between 2% and 49%, preferably between 5% and 40%, preferably between 7% and 35%, particularly preferably between 10% and 30% and very particularly preferably between 15% and 25% % of the length L of the lifting sleeve.
  • Distance a between the stroke chamber and the sleeve end means the greatest distance between the lifting chamber and the end of the sleeve in the direction/along the longitudinal extent or the longitudinal axis A of the lifting sleeve, with the length L H of the lifting chamber itself counting for half of this distance a.
  • the lifting key is inserted into the sleeve shaft from the underside of the component and transferred from the insertion position to an anchoring position in the lifting chamber assigned to the sleeve end, for example by a rotary movement.
  • this anchoring position the precast concrete component or the precast concrete slab can be fixed to a transport device by means of the lifting key. This is particularly advantageous since the panel is removed from a formwork as part of its manufacture, with the top side of the panel facing the bottom of the formwork. The introduction of force during the lifting process of the component or the plate then takes place in the area of the plate opposite or facing away from the first sleeve opening.
  • the lifting sleeve has at least two lifting chambers. Then preferably one of the lifting chambers is assigned to the sleeve end and/or a further lifting chamber is assigned to the first sleeve opening.
  • the lifting sleeve has at least one anchoring rib, which runs around the outer circumference of the lifting sleeve by at least 70%, preferably by at least 80%, preferably completely or essentially completely. It is preferred that the lifting sleeve has at least two such anchoring ribs. Depending on the length L of the lifting sleeve and thus preferably also depending on the thickness of the precast concrete component or the precast concrete building slab, it is possible for the lifting sleeve to have a plurality of anchoring ribs, for example three to six anchoring ribs.
  • the anchoring ribs enable the at least one lifting sleeve to be embedded in concrete in a particularly secure or firm manner the precast concrete component, which in particular also withstands larger forces, for example when the precast concrete component is fixed by means of the lifting sleeve by a lifting key located in the lifting chamber in an anchoring position on a transport device.
  • the component or the precast concrete building slab is produced on the basis of at least one open-pore concrete and in particular consists or essentially consists of at least one open-pore concrete.
  • Such an open-pored concrete is also referred to as no-fines concrete and expediently has cavities between the rock grains. It is preferred that the component, in particular the precast concrete slab, is water-permeable.
  • the sleeve end is designed as a second sleeve opening, which is assigned to the upper side of the component and is accessible from the upper side of the component.
  • the lift sleeve has a first sleeve opening associated with the bottom of the component and accessible from the bottom of the component and the lift sleeve further has a second sleeve opening associated with the top of the component and accessible from the top of the component.
  • the lifting key is inserted through the first sleeve opening into the sleeve shaft and in the lifting chamber, for example by a rotary movement from the insertion position to a Anchoring position transferred. Then the precast concrete component or the precast concrete slab can be fixed to a transport device by means of the lifting sleeve and the lifting key located in the anchoring position and is lifted out of the formwork.
  • the lifting key can then be inserted from the opposite side of the component, namely the upper side of the component, through the second sleeve opening into the sleeve shaft and passed completely through the lifting sleeve and then transferred to an anchoring position on the underside of the component or the slab by a rotary movement , so that the precast concrete component or the precast concrete slab can be installed or laid.
  • the invention is thus based on the finding that the component or panel can be lifted out of the formwork by means of the lifting sleeve both during production of the component or panel and safely handled during assembly of the component or panel can be.
  • the lifting sleeve of the component advantageously fulfills at least two functions.
  • a lifting sleeve is used for embedding in concrete in a precast concrete component, in particular in a precast concrete slab - preferably in a precast concrete component of the type described above - the lifting sleeve having at least one first sleeve opening, at least one sleeve shaft for receiving a lifting key and one opposite the first sleeve opening Has sleeve end, wherein the lifting sleeve has at least one cross-sectional widening in the form of a lifting chamber, wherein the inner diameter d K of the lifting chamber is larger than the inner width bs of the sleeve shaft.
  • the sleeve is made on the basis of at least one plastic and the lifting sleeve preferably consists of at least one plastic or essentially of at least one plastic.
  • a system consisting of a lifting key and a lifting sleeve—in particular a lifting sleeve described above—is suitable for the method according to the invention, the lifting key having at least one anchor head and at least one guide rod, the anchor head being designed in such a way that it can be inserted into the lifting sleeve through a sleeve opening and in the lifting chamber and/or on the underside or top of the component by a rotary movement, preferably around the longitudinal axis of the lifting key or the guide rod, preferably around 10° to 90°, particularly preferably around 90°, from an insertion position in an anchoring position can be transferred.
  • a fastening element is provided on the guide rod of the lifting key, expediently on the side opposite the anchor head, with which the lifting key can be fixed to a transport device.
  • the fastening element can be, for example, a fastening eyelet.
  • the shape of the anchor head of the lifting key is such that it can be inserted into the lifting sleeve through at least one sleeve opening and, in this insertion position, can be guided through the sleeve shank. It is recommended that the anchor head, in the insertion position in which it can be guided through the socket shank, not be rotatable in the socket shank or essentially not rotatable in the socket shank.
  • the anchor head can then be transferred from the insertion position into an anchoring position, preferably by a rotary movement about the longitudinal axis of the lifting key or guide rod.
  • the lifting key is rotated about its longitudinal axis and in particular by 10° to 90°, preferably by 45° to 90°, particularly preferably by 70° to 90°, very particularly preferably by about rotated 90°.
  • the lifting key is formed on the basis of at least one metal and in particular consists of at least one metal.
  • the lifting key consists of steel or essentially of steel.
  • the lifting key is inserted through the first or second sleeve opening into the sleeve shank and is guided completely through the lifting sleeve to the opposite side of the component or panel and there is transferred into an anchoring position by a rotary movement about the longitudinal axis of the guide rod.
  • the anchor ends of the anchor head expediently engage behind a surface of the lifting arm or the upper or lower side of the component or the plate.
  • the manufacturing method according to the invention has proven itself in particular for components or precast concrete building panels made of porous concrete.
  • the component side intended as the upper side of the component in the assembled or laid state faces the bottom of the formwork.
  • the lifting chamber of the lifting sleeve is associated with the sleeve end, which is designed as the second sleeve opening.
  • the second sleeve opening is associated with the top of the component and the lifting chamber is also associated with the top of the component.
  • the lifting key is preferably fixed to a transport device
  • the force is introduced into the component or the plate on the upper side of the Component provided component side and consequently on the bottom of the formwork side facing. In this way it is possible to remove the component or the plate from the formwork, even if the component or the plate is made of porous concrete according to the preferred embodiment and/or has not yet fully hardened.
  • a subsurface, in particular a subsurface that can be driven on, can be realized with a plurality or a large number of ready-made concrete slabs arranged next to one another—for example 100 to 400 ready-made concrete slabs.
  • Each of these precast concrete slabs can have at least two lifting sleeves embedded in concrete.
  • Each precast concrete slab preferably occupies an area of 1 to 10 m 2 , preferably 2 to 6 m 2 .
  • the precast concrete slabs are arranged in the desired positions to create the subsoil or the drivable subsoil by means of at least one transport device, for example by means of at least one transport crane, with the precast concrete slabs being lifted via their lifting sleeves and preferably via the system of a lifting key and a lifting sleeve are fixed to the transport device.
  • the method preferably further includes the step of inserting the lift wrench through the second sleeve opening, which is the Top of the component is assigned to the sleeve shaft, the lifting key being guided completely through the sleeve shaft to the underside of the component, where it is converted into an anchoring position by a rotary movement about the longitudinal axis of the lifting key.
  • the component is then expediently fixed in this anchoring position by means of the lifting key on a transport device and handled in this way.
  • the lifting sleeve has at least two lifting chambers
  • the lifting key can first be inserted from the underside of the component through a first sleeve opening into the sleeve shank of the lifting sleeve and can be transferred to an anchoring position in the first lifting chamber assigned to the top side of the component or the top of the plate .
  • the precast concrete component or the precast concrete slab is then handled in this anchoring position by means of a transport device.
  • the lifting key can be inserted into the sleeve shaft through a second sleeve opening, which is assigned to the upper side of the component, and transferred into an anchoring position in a second lifting chamber, preferably assigned to the underside of the component or plate.
  • the component is then expediently fixed in the anchoring position by means of the lifting key on a transport device and handled in this way.
  • the invention is based on the finding that the precast concrete component or the precast concrete slab can be functionally reliably and easily fixed to a transport device by means of the lifting sleeve.
  • the fixation on a transport device is also possible in particular if, according to the preferred embodiment, an open-pored concrete is used as the material for the Precast concrete component or the precast concrete slab is used.
  • the lifting sleeve has a first and a second sleeve opening, the sleeve is accessible from both sides of the component or the plate and it can be used in particular a simple and particularly advantageous handling of the component or the plate both in the context of the manufacture of the plate - for example the formwork - as well as during the assembly of the panel.
  • a particular advantage of the invention is that one and the same lifting sleeve can be used both for removing the formwork from the component, during which a lifting key is transferred into an anchoring position in the lifting chamber and then fixed to a transport device, and for assembling the component or the plate, in which a lifting key is preferably transferred to the underside of the plate in an anchoring position and is fixed to a transport device, can be used. It should also be emphasized that the advantages according to the invention are achieved in a simple and uncomplicated manner and the invention thus—in particular with regard to the known measures—incurs low costs or production costs.
  • the figures show a precast concrete slab 1 produced by the method according to the invention with at least one lifting sleeve 2 concreted into the slab 1.
  • the slab 1 can be fixed to a transport device, for example a crane, by means of the lifting sleeve 2.
  • the lifting sleeve 2 has a first sleeve opening 3 , a sleeve shank 4 for receiving a lifting key 11 and a sleeve end 5 opposite the first sleeve opening 3 .
  • the sleeve end 5 is designed as a second sleeve opening 10 .
  • the lifting sleeve 2 has an enlarged cross section in the form of a lifting chamber 6 .
  • the inner diameter d K of the lifting chamber 6 is greater according to the invention than the inner width bs of the sleeve shank 4. This is particularly the case in FIGS Figures 1 and 2 to recognize.
  • Inside diameter d K of the lifting chamber 6 means in the context of the invention and in the exemplary embodiment in particular the largest inside diameter of the lifting chamber transversely, in particular perpendicular to the longitudinal extent or to the longitudinal axis A of the lifting sleeve 2.
  • Inside width bs of the sleeve shaft 4 means in the context of the invention and in the exemplary embodiment in particular the largest inner width of the sleeve shank 4 across, in particular perpendicular to the longitudinal extent or to the longitudinal axis A of the lifting sleeve 2 or the sleeve shank 4 and transversely, in particular perpendicular to the longitudinal center axis A Q of the cross-sectional area of the sleeve shank 4. This is particularly the case in FIG 2 shown.
  • the ratio of the inside diameter d K of the lifting chamber 6 to the inside width bs of the sleeve shank 4 may be about 2:1.
  • At least two lifting sleeves 2 may be concreted into the precast concrete slab 1 . In the embodiment according to 1 only one lifting sleeve 2 is shown.
  • the lifting sleeve 2 is hollow on the inside over its entire length L.
  • the lifting sleeve 2 is also embedded in concrete over its entire length L or essentially over its entire length L in the precast concrete slab 1 .
  • length L of the lifting sleeve 2 means in particular the greatest extension of the lifting sleeve 2 along or in the direction of its longitudinal axis A, as is particularly the case in FIGS 1 and 3 can be seen.
  • the first sleeve opening 3 is assigned to the underside 7 of the precast concrete slab 1 and is accessible from the underside 7 of the slab 1 .
  • Underside 7 of the precast concrete slab 1 means, within the scope of the invention and in the exemplary embodiment, the side of the slab 1 that faces the mounting substrate when the slab 1 is assembled or laid.
  • the lifting key 11 is inserted through the first sleeve opening 3 into the sleeve shank 4 of the lifting sleeve 2 namely from the underside 7 of the plate 1, as in the Figure 4a is shown.
  • the sleeve end 5 is designed as a second sleeve opening 10 and this second sleeve opening 10 is associated with the upper side 8 of the plate 1 and is accessible from the upper side 8 of the plate 1 .
  • top of the panel in this context means that in the assembled state of the precast concrete slab 1 means the side of the slab 1 facing away from the mounting substrate.
  • the lifting chamber 6 is designed as a hollow-cylindrical section of the lifting sleeve 2 .
  • the lifting chamber 6 preferably and in the exemplary embodiment has a circular cross section with the inside diameter dK .
  • Cross-section of the lifting chamber 6 means in particular the cross-section across, in particular perpendicular to the longitudinal axis A of the lifting sleeve 2.
  • the inner diameter d K of the lifting chamber 6, which is designed as a hollow-cylindrical section with a circular cross-section, corresponds within the scope of the invention and in the exemplary embodiment to the circle diameter or inner circle diameter of the cross-sectional area. This is particularly in the 2 to recognize.
  • the ratio of the length L H of the lifting chamber 6 to the length L of the lifting sleeve 2 is 1:10 to 1:6, preferably 1:9 to 1:7, particularly preferably and in the exemplary embodiment ( 3 ) 1:8 or about 1:8.
  • the length L H of the lifting chamber means in particular the greatest extension of the lifting chamber 6 in the longitudinal direction of the lifting sleeve 2 or in the direction of the longitudinal axis A of the lifting sleeve 2 .
  • the sleeve shaft 4 of the lifting sleeve 2 is designed as a hollow body, the inner length Ls of which is recommended and in the exemplary embodiment greater than the inner width bs.
  • the inner length Ls of the sleeve shank 4 means in particular the greatest inner length transversely, in particular perpendicularly, to the longitudinal axis A of the lifting sleeve 2 and along or in the direction of the longitudinal center axis A Q of the cross-sectional area of the sleeve shank 4 and thus transversely, in particular perpendicularly to the inner width bs of the sleeve shank 4 ( 2 ).
  • the inner length Ls of the sleeve shaft 4 corresponds to the inner diameter dK of the lifting chamber 6 or essentially corresponds to Ls dK Rectangle is formed.
  • the longitudinal axis A of the lifting sleeve 2 is arranged transversely, in particular perpendicularly or essentially perpendicularly to the underside 7 and the upper side 8 of the precast concrete slab 1 .
  • the longitudinal axis A of the lifting sleeve 2 in the assembled state of the precast concrete slab 1 is preferably oriented transversely, in particular perpendicularly or essentially perpendicularly to the mounting base.
  • the lifting chamber 6 is assigned to the end 5 of the sleeve.
  • the distance a between the lifting chamber 6 and the sleeve end 5 or the second sleeve opening 10 is preferably between 10% and 35%, particularly preferably between 15% and 30% of the length L of the lifting sleeve 2.
  • the distance a between the lifting chamber 6 and the sleeve end 5 may be about 20% of the length L of the lifting sleeve 2 .
  • distance a between the lifting chamber 6 and the sleeve end 5 means in particular the greatest distance between the lifting chamber 6 and the sleeve end 5 in the direction/along the longitudinal extension or longitudinal axis A of the lifting sleeve 2, with the length L H being the Lifting chamber 6 itself counts for half of this distance a.
  • the lifting sleeve 2 has two anchoring ribs 9 which each completely or substantially completely run around the outer circumference of the lifting sleeve 2 .
  • the precast concrete slab 1 in the figures may consist or essentially consist of at least one open-pored concrete.
  • the lifting sleeve 2 expediently consists of at least one plastic.
  • the lifting wrench 11 has at least one anchor head 12 and at least one guide rod 13 .
  • the anchor head 12 is designed in such a way that it can be inserted into the lifting sleeve 2 through a sleeve opening 3, 10 and in the lifting chamber 6 and/or on the underside 7 or upper side 8 of the plate 1 by a rotary movement about the longitudinal axis of the lifting key 11 or the guide rod 13, preferably by 10° to 90°, preferably by about 90°, from an insertion position ( Figure 4a ) to an anchor position ( Figures 4b and 4c ) can be transferred.
  • the Hubspanner 11 is in the 3 shown together with the lifting sleeve 2.
  • a fastening element 14 is provided on the guide rod 13 of the lifting key 11 on the side opposite the anchor head 12, with which the lifting key 11 can be fixed to a transport device.
  • the fastening element 14 is designed as a fastening eyelet.
  • lifting key 11 expediently consists of at least one metal.
  • the lifting key 11 may consist of steel or essentially consist of steel.
  • the lifting sleeve 2 has at least two functions.
  • the slab 1 is manufactured in a formwork, with the upper side 7 of the slab 1 facing the bottom of the formwork.
  • At least one lifting sleeve 2 is introduced into the plate 1 during the manufacture of the plate 1 .
  • a lifting key 11 is inserted into the sleeve shank 4 through the first sleeve opening 3 facing the side intended as the underside 7 of the component in order to remove the plate 1 from the formwork. This is in the Figure 4a shown.
  • the lifting key 11 is transferred into an anchoring position.
  • This anchoring position is in the Figure 4b shown.
  • the lifting key 11 For transfer from the insertion position ( Figure 4a ) to the anchor position ( Figure 4b ) is the lifting key 11 by a rotary movement about the longitudinal axis of the lifting key 11 or the guide rod 13 - rotated - expediently by about 90 °.
  • the plate 1 can then be removed or lifted out of the formwork using the lifting key 11 .
  • the lifting key 11 is fixed to a transport device by means of the fastening element 14 .
  • the lifting sleeve 2 concreted in the plate 1 thus fulfills a first function in the production of the plate 1 ( Figures 4a and 4b ).
  • the lifting sleeve 2 is recommended to have an additional function when mounting the plate 1 on the intended mounting base. For the assembly of the plate 1, this is already turned so that the plate underside 7 points in the direction of the mounting surface. This is in the Figure 4c shown.
  • the lifting key 11 can be inserted from the top of the plate 8 through the second sleeve opening 10 into the sleeve shank 4 and completely passed through the lifting sleeve 2 in this insertion position. This insertion position during assembly is in the Figures not shown in detail.
  • the lifting key 11 on the underside 7 of the plate 1 can then be transferred from the insertion position to the anchoring position by a rotary movement about the longitudinal axis of the lifting key 11 or the guide rod 13 by approximately 90°.
  • This anchoring position is in the Figure 4c shown.
  • the anchor ends 15 of the anchor head 12 engage behind it, as recommended, and in the exemplary embodiment, a surface 16 of the lifting chamber 6 ( Figure 4b ) or the underside 7 of plate 1 ( Figure 4c ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Fertigbetonbauteils, insbesondere einer Fertigbetonplatte, wobei das Bauteil in einer Schalung gefertigt wird und wobei während der Fertigung zumindest eine Hubhülse in das Bauteil eingebracht wird. Die Fertigbetonbauteile bzw. Fertigbetonplatten werden insbesondere als Untergrund bzw. befahrbarer Untergrund für Lagerflächen, Park- und Abstellflächen, für Flächen in der Bauwirtschaft, für Straßen und dergleichen verwendet.The invention relates to a method for producing a precast concrete component, in particular a precast concrete slab, the component being manufactured in formwork and at least one lifting sleeve being introduced into the component during manufacture. The precast concrete components or precast concrete slabs are used in particular as subsoil or trafficable subsoil for storage areas, parking and storage areas, for areas in the construction industry, for roads and the like.

Fertigbetonbauteile bzw. Fertigbetonplatten der vorstehend beschriebenen Art sind in unterschiedlichen Ausführungsformen aus der Praxis grundsätzlich bekannt. Insbesondere bei großflächigen Fertigbetonbauteilen bzw. Fertigbetonplatten ist sowohl der Transport, als auch die Handhabung und Montage am Einbauort oftmals eine Herausforderung. Es ist in diesem Zusammenhang bekannt, Transportanker vorzusehen, die in die Fertigbetonbauteile integriert sind und die an einer Transportvorrichtung wie etwa einem Kran fixiert werden können. Darüber hinaus ist es aus der Praxis bekannt, Fertigbetonbauteile mithilfe von Vakuumhebegeräten handzuhaben. Diese Handhabung mit Vakuumhebegeräten kann sowohl im Zuge der Montage der Fertigbetonbauteile bzw. Fertigbetonplatten verwendet werden, als auch im Rahmen der Fertigung zum Einsatz kommen, wenn die Fertigbetonbauteile beispielsweise aus einer Schalung gehoben werden müssen.Precast concrete components or precast concrete slabs of the type described above are basically known in different embodiments from practice. Especially with large-area precast concrete components or precast concrete slabs, both the transport and the handling and assembly at the installation site are often a challenge. In this connection it is known to provide transport anchors which are integrated into the precast concrete components and which can be fixed to a transport device such as a crane. In addition, it is known from practice to handle precast concrete components using vacuum lifting devices. This handling with vacuum lifting devices can be used both in the course of the assembly of the precast concrete components or precast concrete slabs and also during production when the precast concrete components have to be lifted out of a formwork, for example.

Bei den aus der Praxis bekannten Maßnahmen hat sich allerdings gezeigt, dass diese nicht für alle Arten von Fertigbetonbauteilen bzw. Fertigbetonplatten geeignet sind. Beispielsweise sind Vakuumhebegeräte bei Fertigbetonbauteilen bzw. Fertigbetonplatten aus offenporigem Beton nicht zuverlässig einsetzbar, da aufgrund der Offenporigkeit keine sichere Fixierung erreicht wird. Weiterhin hat sich gezeigt, dass bei der Herstellung von Fertigbetonbauteilen bzw. Fertigbetonplatten - insbesondere bei der Ausschalung, bei der es möglich ist, dass die Fertigbetonbauteile bzw. Fertigbetonplatten noch nicht vollständig bzw. nur teilweise ausgehärtet sind -, sowohl die bekannten Transportanker, als auch Vakuumhebegeräte für eine funktionssichere und störungsfreie Handhabung teilweise nicht geeignet sind. Dies gilt insbesondere für Fertigbetonbauteile bzw. Fertigbetonplatten aus offenporigem Beton. - Insoweit besteht Verbesserungsbedarf.However, the measures known from practice have shown that they are not suitable for all types of precast concrete components or precast concrete slabs. For example, vacuum lifting devices are used in precast concrete components or ready-made concrete slabs made of open-pored concrete cannot be used reliably, since the open-pored structure means that no secure fixation can be achieved. Furthermore, it has been shown that in the production of precast concrete components or precast concrete slabs - especially during stripping, where it is possible that the precast concrete components or precast concrete slabs are not yet fully or only partially cured - both the known lifting anchors and Some vacuum lifting devices are not suitable for functionally reliable and trouble-free handling. This applies in particular to precast concrete components or precast concrete slabs made of porous concrete. - In this respect, there is a need for improvement.

Aus JP 2003-112884 A ist ein Betonbauteil mit einer Hubhülse beschrieben. Das Bauteil kann mittels der Hubhülse an einer Transportvorrichtung fixiert werden. Die Hubhülse weist eine Hubkammer auf, deren Innendurchmesser größer ist als die Innenbreite des Hülsenschaftes. Bei einer Ausführungsform wird eine an der unteren Hülsenöffnung vorgesehene Kappe entfernt, so dass eine Drainageöffnung nach unten hin resultiert. Die hier beschriebenen Maßnahmen haben sich in der Praxis nicht bewährt.Out of JP 2003-112884 A describes a concrete component with a lifting sleeve. The component can be fixed to a transport device by means of the lifting sleeve. The lifting sleeve has a lifting chamber whose inner diameter is larger than the inner width of the sleeve shank. In one embodiment, a cap provided on the lower sleeve opening is removed, resulting in a downward drainage opening. The measures described here have not proven themselves in practice.

Der Erfindung liegt demgegenüber das technische Problem zugrunde, ein Verfahren zur Herstellung eines Fertigbetonbauteils, insbesondere einer Fertigbetonplatte, anzugeben, bei dem das Bauteil bzw. die Platte funktionssicher und störungsfrei handhabbar ist und insbesondere sicher und zuverlässig an einer Transportvorrichtung fixiert werden kann.In contrast, the invention is based on the technical problem of specifying a method for producing a precast concrete component, in particular a precast concrete slab, in which the component or the slab can be handled reliably and trouble-free and, in particular, can be fixed securely and reliably to a transport device.

Zur Lösung dieses technischen Problems lehrt die Erfindung ein Verfahren zur Herstellung eines Fertigbetonbauteils, insbesondere einer Fertigbetonplatte, wobei das Bauteil in einer Schalung gefertigt wird, wobei die im montierten Zustand des Bauteils als Oberseite des Bauteils vorgesehene Bauteilseite dem Boden der Schalung zugewandt ist, wobei während der Fertigung des Bauteils zumindest eine Hubhülse in das Bauteil eingebracht wird, wobei das Bauteil mittels der Hubhülse an einer Transportvorrichtung fixierbar ist,

  • wobei die Hubhülse zumindest eine erste Hülsenöffnung, zumindest einen Hülsenschaft zur Aufnahme eines Hubschlüssels und ein der ersten Hülsenöffnung gegenüberliegendes Hülsenende aufweist, wobei die Hubhülse zumindest eine Querschnittsaufweitung in Form einer Hubkammer aufweist und wobei der Innendurchmesser dK der Hubkammer größer ist als die Innenbreite bS des Hülsenschaftes,
  • wobei nach der zumindest teilweisen Aushärtung des Bauteils zur Entfernung des Bauteils aus der Schalung ein Hubschlüssel durch die der als Unterseite des Bauteils vorgesehenen Seite zugeordnete erste Hülsenöffnung in den Hülsenschaft eingeführt wird und in der Hubkammer in eine Verankerungsposition überführt wird und wobei das Bauteil anschließend mittels des Hubschlüssels aus der Schalung entfernt bzw. gehoben wird,
  • wobei das Hülsenende als zweite Hülsenöffnung ausgebildet ist, die der im montierten Zustand des Bauteils dem Montageuntergrund abgewandten Oberseite des Bauteils zugeordnet ist und von der Oberseite des Bauteils zugänglich ist
  • und wobei die Hubkammer dem Hülsenende bzw. der zweiten Hülsenöffnung zugeordnet ist und wobei der Abstand a zwischen der Hubkammer und dem Hülsenende zwischen 2 % und 49 % der Länge L der Hubhülse beträgt.
To solve this technical problem, the invention teaches a method for producing a precast concrete component, in particular a precast concrete slab, the component being manufactured in a formwork, the component side intended as the upper side of the component in the assembled state of the component bottom faces the formwork, with at least one lifting sleeve being introduced into the component during manufacture of the component, with the component being able to be fixed to a transport device by means of the lifting sleeve,
  • wherein the lifting sleeve has at least one first sleeve opening, at least one sleeve shank for receiving a lifting key and a sleeve end opposite the first sleeve opening, wherein the lifting sleeve has at least one cross-sectional widening in the form of a lifting chamber and wherein the inner diameter d K of the lifting chamber is greater than the inner width b S of the sleeve shaft,
  • after the at least partial hardening of the component, to remove the component from the formwork, a lifting key is inserted through the first sleeve opening assigned to the side intended as the underside of the component and into the sleeve shank and is transferred to an anchoring position in the lifting chamber, and the component is then removed by means of the lifting wrench is removed or lifted from the formwork,
  • wherein the sleeve end is designed as a second sleeve opening, which is assigned to the top side of the component that faces away from the mounting base when the component is in the mounted state and is accessible from the top side of the component
  • and wherein the lifting chamber is associated with the sleeve end or the second sleeve opening and wherein the distance a between the lifting chamber and the sleeve end is between 2% and 49% of the length L of the lifting sleeve.

Der Erfindung liegt die Erkenntnis zugrunde, dass das erfindungsgemäße Verfahren mit der in das Fertigbetonbauteil einbetonierten Hubhülse eine funktionssichere und einfache Handhabung des Fertigbetonbauteils bzw. der Fertigbetonplatte und insbesondere die zuverlässige Fixierung an einer Transportvorrichtung ermöglicht. Dies gilt sowohl für die Herstellung, insbesondere für die Ausschalung des Fertigbetonbauteils, als auch für die Montage. Es liegt im Rahmen der Erfindung, dass die Handhabung des Fertigbetonbauteils bzw. der Fertigbetonplatte, insbesondere die Fixierung an einer Transportvorrichtung, mithilfe des Hubschlüssels erfolgt, der in den Hülsenschaft der Hubhülse eingeführt wird und in der zumindest einen Hubkammer und optional zusätzlich auch an der Fertigbetonbauteiloberseite bzw. Fertigbetonbauteilunterseite von einer Einführposition in eine Verankerungsposition überführt werden kann. Dies wird untenstehend noch näher erläutert. Statt des Begriffes Fertigbetonbauteil bzw. Fertigbetonplatte wird hier und nachfolgend auch einfach der Ausdruck Bauteil bzw. Platte verwendet. Innendurchmesser dK der Hubkammer meint im Rahmen der Erfindung insbesondere den größten Innendurchmesser der Hubkammer quer, insbesondere senkrecht zur Längserstreckung bzw. zur Längsachse A der Hubhülse. Innenbreite bs des Hülsenschaftes meint im Rahmen der Erfindung insbesondere die größte Innenbreite des Hülsenschaftes quer, insbesondere senkrecht zur Längserstreckung bzw. zur Längsachse A der Hubhülse bzw. des Hülsenschaftes und quer, insbesondere senkrecht zur Längsmittelachse AQ der Querschnittsfläche des Hülsenschaftes. Es liegt im Rahmen der Erfindung, dass das Verhältnis des Innendurchmessers dK der Hubkammer zur Innenbreite bs des Hülsensschaftes zwischen 1,1:1 und 4:1, vorzugsweise zwischen 1,5:1 und 3:1, bevorzugt zwischen 1,7:1 und 2,2:1, ganz besonders bevorzugt zwischen 1,9:1 und 2,1:1, beispielsweise etwa 2:1 beträgt.The invention is based on the finding that the method according to the invention with the lifting sleeve concreted into the precast concrete component functionally reliable and easy handling of the precast concrete component or the precast concrete slab and in particular the reliable fixation on a transport device. This applies both to the production, in particular to the shuttering of the precast concrete component, and to the assembly. It is within the scope of the invention that the handling of the precast concrete component or the precast concrete slab, in particular the fixing to a transport device, is carried out with the help of the lifting key, which is inserted into the sleeve shaft of the lifting sleeve and in the at least one lifting chamber and optionally also on the top side of the precast concrete component or precast concrete component underside can be transferred from an insertion position into an anchoring position. This is explained in more detail below. Instead of the term precast concrete component or precast concrete slab, the term component or slab is also simply used here and in the following. Within the scope of the invention, inner diameter d K of the lifting chamber means in particular the largest inner diameter of the lifting chamber transversely, in particular perpendicular to the longitudinal extent or to the longitudinal axis A of the lifting sleeve. In the context of the invention, inner width bs of the sleeve shank means in particular the largest inner width of the sleeve shank transversely, in particular perpendicular to the longitudinal extension or to the longitudinal axis A of the lifting sleeve or the sleeve shank and transversely, in particular perpendicular to the longitudinal center axis A Q of the cross-sectional area of the sleeve shank. It is within the scope of the invention that the ratio of the inner diameter d K of the lifting chamber to the inner width bs of the sleeve shaft is between 1.1:1 and 4:1, preferably between 1.5:1 and 3:1, preferably between 1.7: 1 and 2.2:1, most preferably between 1.9:1 and 2.1:1, for example about 2:1.

Gemäß einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens werden in das Fertigbetonbauteil bzw. in die Fertigbetonplatte zumindest zwei Hubhülsen einbetoniert. Empfohlenermaßen weist ein Bauteil bzw. eine Platte zwei bis sechs Hubhülsen, bevorzugt zwei bis vier Hubhülsen und besonders bevorzugt zwei Hubhülsen auf, die in das Bauteil bzw. in die Platte einbetoniert sind. Der Ausführungsform mit zumindest zwei Hubhülsen liegt die Erkenntnis zugrunde, dass das Bauteil bzw. die Platte durch zumindest zwei einbetonierte Hubhülsen besonders zuverlässig und sicher an einer Transportvorrichtung fixiert werden kann.According to a preferred embodiment of the method according to the invention, in the precast concrete component or in the precast concrete slab at least two lifting sleeves concreted in. It is recommended that a component or a panel has two to six lifting sleeves, preferably two to four lifting sleeves and particularly preferably two lifting sleeves, which are embedded in concrete in the component or in the panel. The embodiment with at least two lifting sleeves is based on the finding that the component or the plate can be fixed particularly reliably and securely to a transport device by at least two lifting sleeves embedded in concrete.

Die Hubhülse ist zumindest bereichsweise innen hohl ausgebildet und vorzugsweise über ihre gesamte Länge L bzw. im Wesentlichen über ihre gesamte Länge L innen hohl ausgebildet ist. Die Hubhülse weist somit empfohlenermaßen einen Hohlraum auf, der sich in Richtung der Längsachse A der Hubhülse über ihre gesamte Länge erstreckt. Der Durchmesser des Hohlraums beträgt zweckmäßigerweise zumindest 70 %, bevorzugt zumindest 75 %, sehr bevorzugt zumindest 80 % und besonders bevorzugt zumindest 85 % des Außendurchmessers der Hubhülse.The lifting sleeve is hollow on the inside at least in regions and is preferably hollow on the inside over its entire length L or essentially over its entire length L. The lifting sleeve is therefore recommended to have a cavity which extends in the direction of the longitudinal axis A of the lifting sleeve over its entire length. The diameter of the cavity is expediently at least 70%, preferably at least 75%, very preferably at least 80% and particularly preferably at least 85% of the outer diameter of the lifting sleeve.

Gemäß einer bevorzugten Ausführungsform ist die Hubhülse über ihre gesamte Länge L bzw. im Wesentlichen über ihre gesamte Länge L in das Bauteil einbetoniert. Länge L der Hubhülse meint im Rahmen der Erfindung im Übrigen insbesondere die größte Erstreckung der Hubhülse entlang bzw. in Richtung ihrer Längsachse A.According to a preferred embodiment, the lifting sleeve is embedded in concrete over its entire length L or essentially over its entire length L in the component. In the context of the invention, length L of the lifting sleeve means in particular the greatest extension of the lifting sleeve along or in the direction of its longitudinal axis A.

Die erste Hülsenöffnung ist der Unterseite des Bauteils bzw. der Platte zugeordnet und von der Unterseite des Bauteils bzw. der Platte zugänglich. Unterseite des Bauteils bzw. der Platte meint im Rahmen der Erfindung die im montierten Zustand des Bauteils bzw. der Platte dem Montageuntergrund zugewandte Seite des Bauteils bzw. der Platte. Durch die erste Hülsenöffnung wird ein Hubschlüssel in den Hülsenschaft der Hubhülse eingeführt und zwar von der Bauteilunterseite.The first sleeve opening is associated with the underside of the component or panel and is accessible from the underside of the component or panel. In the context of the invention, underside of the component or panel means that side of the component or panel that faces the mounting substrate when the component or panel is in the installed state. Through the first sleeve opening a lifting key is inserted into the sleeve shaft of the lifting sleeve from the underside of the component.

Gemäß einer empfohlenen Ausgestaltung des erfindungsgemäßen Verfahrens ist die zumindest eine Hubkammer als hohlzylindrischer Abschnitt der Hubhülse ausgebildet, der insbesondere einen runden, bevorzugt einen kreisrunden Querschnitt mit dem Innendurchmesser dK aufweist. Querschnitt der Hubkammer meint im Rahmen der Erfindung insbesondere den Querschnitt quer, insbesondere senkrecht zur Längsachse A der Hubhülse. Wenn die Hubkammer gemäß besonders bevorzugter Ausführungsform als hohlzylindrischer Abschnitt mit einem kreisrunden Querschnitt ausgebildet ist, entspricht der Innendurchmesser dK der Hubkammer dem Kreisdurchmesser bzw. Kreisinnendurchmesser der Querschnittsfläche. Dieser Ausführungsform liegt die Erkenntnis zugrunde, dass der Hubschlüssel - durch die der Unterseite des Bauteils zugeordnete erste Hülsenöffnung - in den Hülsenschaft eingeführt wird und in der hohlzylindrisch ausgebildeten Hubkammer z.B. durch eine Drehbewegung von einer Einführposition in eine Verankerungsposition überführt wird, so dass das Fertigbetonbauteil bzw. die Fertigbetonplatte mittels der Hubhülse und des Hubschlüssels an einer Transportvorrichtung fixiert werden kann.According to a recommended embodiment of the method according to the invention, the at least one lifting chamber is designed as a hollow-cylindrical section of the lifting sleeve, which in particular has a round, preferably circular, cross-section with the inside diameter dK . In the context of the invention, the cross section of the lifting chamber means in particular the cross section across, in particular perpendicular to the longitudinal axis A of the lifting sleeve. If, according to a particularly preferred embodiment, the lifting chamber is designed as a hollow-cylindrical section with a circular cross section, the inner diameter d K of the lifting chamber corresponds to the circle diameter or inner circle diameter of the cross-sectional area. This embodiment is based on the finding that the lifting key - through the first sleeve opening assigned to the underside of the component - is inserted into the sleeve shaft and is transferred in the hollow-cylindrical lifting chamber, for example by a rotary movement, from an insertion position to an anchoring position, so that the precast concrete component or The precast concrete slab can be fixed to a transport device using the lifting sleeve and the lifting key.

Es ist bevorzugt, dass das Verhältnis der Länge LH der Hubkammer zur Länge L der Hubhülse 1:12 bis 1:4, vorzugsweise 1:10 bis 1:6, bevorzugt 1:9 bis 1:7, beispielsweise 1:8 bzw. etwa 1:8 beträgt. Länge LH der Hubkammer meint in diesem Zusammenhang die größte Erstreckung der Hubkammer in Längsrichtung der Hubhülse bzw. in Richtung der Längsachse A der Hubhülse.It is preferred that the ratio of the length L H of the lifting chamber to the length L of the lifting sleeve is 1:12 to 1:4, preferably 1:10 to 1:6, preferably 1:9 to 1:7, for example 1:8 or is about 1:8. In this context, length L H of the lifting chamber means the greatest extension of the lifting chamber in the longitudinal direction of the lifting sleeve or in the direction of the longitudinal axis A of the lifting sleeve.

Es liegt im Rahmen der Erfindung, dass der Hülsenschaft als Hohlkörper ausgebildet ist, dessen Innenlänge Ls vorzugsweise größer ist, als dessen Innenbreite bs. Innenlänge Ls des Hülsenschaftes meint in diesem Zusammenhang insbesondere die größte Innenlänge quer, insbesondere senkrecht zur Längsachse A der Hubhülse und entlang bzw. in Richtung der Längsmittelachse AQ der Querschnittsfläche des Hülsenschaftes und somit quer, insbesondere senkrecht zur Innenbreite bs des Hülsenschaftes. Es liegt im Rahmen der Erfindung, dass das Verhältnis der Innenlänge Ls des Hülsenschaftes zur Innenbreite bs des Hülsenschaftes 1,1:1 bis 4:1, vorzugsweise 1,5:1 bis 3:1, bevorzugt 1,7:1 bis 2,2:1, besonders bevorzugt 1,9:1 bis 2,1:1, beispielsweise etwa 2:1 beträgt. Es ist bevorzugt, dass die Innenlänge Ls des Hülsenschaftes dem Innendurchmesser dK der Hubkammer entspricht bzw. im Wesentlichen entspricht.It is within the scope of the invention that the sleeve shank is designed as a hollow body, the inner length Ls of which is preferably greater than that inside width up to In this context, inner length Ls of the sleeve shank means in particular the greatest inner length across, in particular perpendicular to the longitudinal axis A of the lifting sleeve and along or in the direction of the longitudinal center axis A Q of the cross-sectional area of the sleeve shank and thus across, in particular perpendicular to the inner width bs of the sleeve shank. It is within the scope of the invention that the ratio of the inner length Ls of the sleeve shank to the inner width bs of the sleeve shank is 1.1:1 to 4:1, preferably 1.5:1 to 3:1, preferably 1.7:1 to 2. 2:1, more preferably 1.9:1 to 2.1:1, for example about 2:1. It is preferred that the inner length Ls of the sleeve shank corresponds or essentially corresponds to the inner diameter d K of the lifting chamber.

Gemäß einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens ist der Hülsenschaft als Hohlkörper ausgebildet, dessen Querschnittsfläche als abgerundetes Rechteck vorgesehen ist. Gemäß einer weiteren bevorzugten Ausführungsform ist der Hülsenschaft als Hohlkörper ausgebildet, dessen Querschnittsfläche ellipsenförmig ausgebildet ist. Grundsätzlich liegen auch andere Querschnittsgeometrien für den Hülsenschaft im Rahmen der Erfindung, beispielsweise eine ovale, rechteckige, quadratische, dreieckförmige oderdergleichen Querschnittsgeometrie. Wesentlich ist dabei, dass der Innendurchmesser dK der Hubkammer größer ist als die Innenbreite bs des Hülsenschaftes.According to a preferred embodiment of the method according to the invention, the sleeve shank is designed as a hollow body, the cross-sectional area of which is provided as a rounded rectangle. According to a further preferred embodiment, the sleeve shank is designed as a hollow body whose cross-sectional area is elliptical. In principle, other cross-sectional geometries for the sleeve shaft are also within the scope of the invention, for example an oval, rectangular, square, triangular or the same cross-sectional geometry. It is essential that the inner diameter d K of the lifting chamber is larger than the inner width bs of the sleeve shank.

Eine besonders empfohlene Ausführungsform der Erfindung zeichnet sich dadurch aus, dass das Fertigbetonbauteil bzw. eine Fertigbetonplatte für einen befahrbaren Untergrund, beispielsweise für eine befahrbare Straße, eine befahrbare Lagerfläche, eine befahrbare Parkfläche, etwa ein Parkdeck oder dergleichen ausgelegt ist. Die Dicke einer Fertigbetonplatte beträgt empfohlenermaßen 50 bis 300 mm, bevorzugt 100 bis 250 mm und besonders bevorzugt 160 bis 200 mm. Es empfiehlt sich, dass sich eine Hubhülse über zumindest 70 %, vorzugsweise über zumindest 80 %, bevorzugt über zumindest 90 % und ganz besonders bevorzugt über zumindest 95 % der Dicke des Fertigbetonbauteils bzw. der Fertigbetonplatte erstreckt.A particularly recommended embodiment of the invention is characterized in that the precast concrete component or a precast concrete slab is designed for a drivable subsoil, for example a drivable street, a drivable storage area, a drivable parking area, such as a parking deck or the like. The thickness of a precast concrete slab is recommended to be 50 to 300 mm, preferably 100 to 250 mm and especially preferably 160 to 200 mm. It is recommended that a lifting sleeve extends over at least 70%, preferably over at least 80%, preferably over at least 90% and very particularly preferably over at least 95% of the thickness of the precast concrete component or the precast concrete slab.

Zweckmäßigerweise ist eine Fertigbetonplatte in der Draufsicht rechteckig ausgebildet. Gemäß einer empfohlenen Ausführungsform können die Seitenlängen einer solchen rechteckigen Platte jeweils 600 bis 3000 mm, bevorzugt 800 bis 2500 mm, besonders bevorzugt 1000 bis 2200 mm betragen.Expediently, a precast concrete slab is rectangular in plan view. According to a recommended embodiment, the side lengths of such a rectangular plate can each be 600 to 3000 mm, preferably 800 to 2500 mm, particularly preferably 1000 to 2200 mm.

Gemäß einer bevorzugten Ausführungsform des erfindungsgemäßen fahrens ist die Längsachse A der Hubhülse quer, insbesondere senkrecht bzw. im Wesentlichen senkrecht zu der Unterseite und/oder der Oberseite des Bauteils angeordnet. Oberseite des Bauteils meint im Rahmen der Erfindung die im montierten Zustand dem Montageuntergrund abgewandte Seite des Bauteils. Es liegt somit im Rahmen der Erfindung, dass die Längsachse A der Hubhülse im montierten Zustand des Fertigbetonbauteils bzw. der Fertigbetonplatte quer, insbesondere senkrecht bzw. im Wesentlichen senkrecht zu dem Montageuntergrund orientiert ist. Montageuntergrund meint im Rahmen der Erfindung insbesondere den Untergrund bzw. den Erdboden auf dem das Fertigbetonbauteil bzw. die Fertigbetonplatte montiert bzw. verlegt wird.According to a preferred embodiment of the method according to the invention, the longitudinal axis A of the lifting sleeve is arranged transversely, in particular perpendicularly or essentially perpendicularly to the underside and/or the upper side of the component. In the context of the invention, the upper side of the component means that side of the component which faces away from the mounting base in the mounted state. It is therefore within the scope of the invention for the longitudinal axis A of the lifting sleeve to be oriented transversely, in particular perpendicularly or essentially perpendicularly, to the mounting base when the precast concrete component or the precast concrete slab is in the assembled state. In the context of the invention, the installation substrate means in particular the substrate or the ground on which the precast concrete component or the precast concrete slab is installed or laid.

Erfindungsgemäß ist die Hubkammer dem Hülsenende zugeordnet. Der Abstand a zwischen der Hubkammer und dem Hülsenende beträgt zwischen 2 % und 49 %, vorzugsweise zwischen 5 % und 40 %, bevorzugt zwischen 7 % und 35 %, besonders bevorzugt zwischen 10 % und 30 % und ganz besonders bevorzugt zwischen 15 % und 25 % der Länge L der Hubhülse. Abstand a zwischen der Hubkammer und dem Hülsenende meint den größten Abstand zwischen Hubkammer und Hülsenende in Richtung/entlang der Längserstreckung bzw. der Längsachse A der Hubhülse, wobei die Länge LH der Hubkammer selbst zur Hälfte zu diesem Abstand a zählt. Von der Unterseite des Bauteils wird der Hubschlüssel in den Hülsenschaft eingeführt und in der dem Hülsenende zugeordneten Hubkammer z.B. durch eine Drehbewegung von der Einführposition in eine Verankerungsposition überführt. In dieser Verankerungsposition kann das Fertigbetonbauteil bzw. die Fertigbetonplatte mittels des Hubschlüssels an einer Transportvorrichtung fixiert werden. Dies ist besonders vorteilhaft, da die Platte im Rahmen ihrer Herstellung aus einer Schalung entfernt wird, wobei die Plattenoberseite dem Boden der Schalung zugewandt ist. Die Krafteinleitung beim Anhebevorgang des Bauteils bzw. der Platte erfolgt dann in dem der ersten Hülsenöffnung gegenüberliegenden bzw. abgewandten Bereich der Platte.According to the invention, the lifting chamber is assigned to the end of the sleeve. The distance a between the lifting chamber and the sleeve end is between 2% and 49%, preferably between 5% and 40%, preferably between 7% and 35%, particularly preferably between 10% and 30% and very particularly preferably between 15% and 25% % of the length L of the lifting sleeve. Distance a between the stroke chamber and the sleeve end means the greatest distance between the lifting chamber and the end of the sleeve in the direction/along the longitudinal extent or the longitudinal axis A of the lifting sleeve, with the length L H of the lifting chamber itself counting for half of this distance a. The lifting key is inserted into the sleeve shaft from the underside of the component and transferred from the insertion position to an anchoring position in the lifting chamber assigned to the sleeve end, for example by a rotary movement. In this anchoring position, the precast concrete component or the precast concrete slab can be fixed to a transport device by means of the lifting key. This is particularly advantageous since the panel is removed from a formwork as part of its manufacture, with the top side of the panel facing the bottom of the formwork. The introduction of force during the lifting process of the component or the plate then takes place in the area of the plate opposite or facing away from the first sleeve opening.

Es liegt im Rahmen der Erfindung, dass die Hubhülse zumindest zwei Hubkammern aufweist. Dann ist vorzugsweise eine der Hubkammern dem Hülsenende zugeordnet und/oder eine weitere Hubkammer ist der ersten Hülsenöffnung zugeordnet.It is within the scope of the invention that the lifting sleeve has at least two lifting chambers. Then preferably one of the lifting chambers is assigned to the sleeve end and/or a further lifting chamber is assigned to the first sleeve opening.

Nach einer bevorzugten Ausgestaltung der Erfindung weist die Hubhülse zumindest eine Verankerungsrippe auf, die den Außenumfang der Hubhülse um zumindest 70 %, vorzugsweise um zumindest 80 %, bevorzugt vollständig bzw. im Wesentlichen vollständig umläuft. Es ist bevorzugt, dass die Hubhülse zumindest zwei solcher Verankerungsrippen aufweist. Je nach Länge L der Hubhülse und somit vorzugsweise auch in Abhängigkeit von der Dicke des Fertigbetonbauteils bzw. der Fertigbetonbauplatte ist es möglich, dass die Hubhülse eine Mehrzahl von Verankerungsrippen, beispielsweise drei bis sechs Verankerungsrippen aufweist. Die Verankerungsrippen ermöglichen eine besonders sichere bzw. feste Einbetonierung der zumindest einen Hubhülse in das Fertigbetonbauteil, die insbesondere auch größeren Krafteinwirkungen, beispielsweise bei der Fixierung des Fertigbetonbauteils mittels der Hubhülse durch einen in der Hubkammer in einer Verankerungsposition befindlichen Hubschlüssel an einer Transportvorrichtung, standhält.According to a preferred embodiment of the invention, the lifting sleeve has at least one anchoring rib, which runs around the outer circumference of the lifting sleeve by at least 70%, preferably by at least 80%, preferably completely or essentially completely. It is preferred that the lifting sleeve has at least two such anchoring ribs. Depending on the length L of the lifting sleeve and thus preferably also depending on the thickness of the precast concrete component or the precast concrete building slab, it is possible for the lifting sleeve to have a plurality of anchoring ribs, for example three to six anchoring ribs. The anchoring ribs enable the at least one lifting sleeve to be embedded in concrete in a particularly secure or firm manner the precast concrete component, which in particular also withstands larger forces, for example when the precast concrete component is fixed by means of the lifting sleeve by a lifting key located in the lifting chamber in an anchoring position on a transport device.

Es liegt im Rahmen der Erfindung, dass das Bauteil bzw. die Fertigbetonbauplatte auf Basis zumindest eines offenporigen Betons hergestellt ist und insbesondere aus zumindest einem offenporigen Beton besteht bzw. im Wesentlichen besteht. Ein solcher offenporiger Beton wird auch als haufwerksporiger Beton bezeichnet und weist zweckmäßigerweise Hohlräume zwischen den Gesteinskörnern auf. Es ist bevorzugt, dass das Bauteil, insbesondere die Fertigbetonplatte, wasserdurchlässig ist.It is within the scope of the invention that the component or the precast concrete building slab is produced on the basis of at least one open-pore concrete and in particular consists or essentially consists of at least one open-pore concrete. Such an open-pored concrete is also referred to as no-fines concrete and expediently has cavities between the rock grains. It is preferred that the component, in particular the precast concrete slab, is water-permeable.

Erfindungsgemäß ist das Hülsenende als zweite Hülsenöffnung ausgebildet, die der Oberseite des Bauteils zugeordnet ist und von der Oberseite des Bauteils zugänglich ist. Die Hubhülse weist eine erste Hülsenöffnung auf, die der Unterseite des Bauteils zugeordnet und von der Unterseite des Bauteils zugänglich ist und die Hubhülse weist weiterhin eine zweite Hülsenöffnung auf, die der Oberseite des Bauteils zugeordnet ist und von der Oberseite des Bauteils zugänglich ist. Im Zuge der Fertigung des Bauteils in einer Schalung, bei dem die Oberseite des Bauteils der Unterseite der Schalung zugewandt bzw. zugeordnet ist, wird der Hubschlüssel durch die erste Hülsenöffnung in den Hülsenschaft eingeführt und in der Hubkammer z.B. durch eine Drehbewegung von der Einführposition in eine Verankerungsposition überführt. Dann kann das Fertigbetonbauteil beziehungsweise die Fertigbetonplatte mittels der Hubhülse und dem in der Verankerungsposition befindlichen Hubschlüssel an einer Transportvorrichtung fixiert werden und wird aus der Schalung gehoben. Zur Montage des Fertigbetonbauteils bzw. der Fertigbetonplatte kann der Hubschlüssel dann von der gegenüberliegenden Bauteilseite, nämlich der Oberseite des Bauteils durch die zweite Hülsenöffnung in den Hülsenschaft eingeführt werden und vollständig durch die Hubhülse hindurchgeführt werden und anschließend an der Unterseite des Bauteils bzw. der Platte durch eine Drehbewegung in eine Verankerungsposition überführt werden, so dass das Fertigbetonbauteil beziehungsweise die Fertigbetonplatte montiert bzw. verlegt werden kann. Der Erfindung liegt somit die Erkenntnis zugrunde, dass das Bauteil bzw. die Platte mittels der Hubhülse sowohl im Rahmen der Herstellung des Bauteils bzw. der Platte aus der Schalung gehoben werden kann, als auch im Rahmen der Montage des Bauteils bzw. der Platte sicher gehandhabt werden kann. Insoweit erfüllt die Hubhülse des Bauteils in vorteilhafter Weise zumindest zwei Funktionen.According to the invention, the sleeve end is designed as a second sleeve opening, which is assigned to the upper side of the component and is accessible from the upper side of the component. The lift sleeve has a first sleeve opening associated with the bottom of the component and accessible from the bottom of the component and the lift sleeve further has a second sleeve opening associated with the top of the component and accessible from the top of the component. In the course of manufacturing the component in a formwork, in which the upper side of the component faces or is assigned to the underside of the formwork, the lifting key is inserted through the first sleeve opening into the sleeve shaft and in the lifting chamber, for example by a rotary movement from the insertion position to a Anchoring position transferred. Then the precast concrete component or the precast concrete slab can be fixed to a transport device by means of the lifting sleeve and the lifting key located in the anchoring position and is lifted out of the formwork. For the assembly of the precast concrete component or the concrete slab, the lifting key can then be inserted from the opposite side of the component, namely the upper side of the component, through the second sleeve opening into the sleeve shaft and passed completely through the lifting sleeve and then transferred to an anchoring position on the underside of the component or the slab by a rotary movement , so that the precast concrete component or the precast concrete slab can be installed or laid. The invention is thus based on the finding that the component or panel can be lifted out of the formwork by means of the lifting sleeve both during production of the component or panel and safely handled during assembly of the component or panel can be. In this respect, the lifting sleeve of the component advantageously fulfills at least two functions.

Für das erfindungsgemäße Verfahren wird eine Hubhülse zum Einbetonieren in ein Fertigbetonbauteil, insbesondere in eine Fertigbetonplatte - vorzugsweise in ein Fertigbetonbauteil der vorstehend beschriebenen Art - eingesetzt, wobei die Hubhülse zumindest eine erste Hülsenöffnung, zumindest einen Hülsenschaft zur Aufnahme eines Hubschlüssels und ein der ersten Hülsenöffnung gegenüberliegendes Hülsenende aufweist, wobei die Hubhülse zumindest eine Querschnittsaufweitung in Form einer Hubkammer aufweist, wobei der Innendurchmesser dK der Hubkammer größer ist, als die Innenbreite bs des Hülsenschaftes.For the method according to the invention, a lifting sleeve is used for embedding in concrete in a precast concrete component, in particular in a precast concrete slab - preferably in a precast concrete component of the type described above - the lifting sleeve having at least one first sleeve opening, at least one sleeve shaft for receiving a lifting key and one opposite the first sleeve opening Has sleeve end, wherein the lifting sleeve has at least one cross-sectional widening in the form of a lifting chamber, wherein the inner diameter d K of the lifting chamber is larger than the inner width bs of the sleeve shaft.

Gemäß einer bevorzugten Ausführungsform der Hubhülse ist die Hülse auf Basis zumindest eines Kunststoffes hergestellt und bevorzugt besteht die Hubhülse aus zumindest einem Kunststoff bzw. im Wesentlichen aus zumindest einem Kunststoff.According to a preferred embodiment of the lifting sleeve, the sleeve is made on the basis of at least one plastic and the lifting sleeve preferably consists of at least one plastic or essentially of at least one plastic.

Geeignet für das erfindungsgemäße Verfahren ist ein System aus einem Hubschlüssel und einer Hubhülse - insbesondere einer vorstehend beschriebenen Hubhülse -, wobei der Hubschlüssel zumindest einen Ankerkopf und zumindest einen Führungsstab aufweist, wobei der Ankerkopf derart ausgestaltet ist, dass er durch eine Hülsenöffnung in die Hubhülse einführbar ist und in der Hubkammer und/oder an der Unterseite bzw. Oberseite des Bauteils durch eine Drehbewegung, vorzugsweise um die Längsachse des Hubschlüssels bzw. des Führungsstabs, bevorzugt um 10° bis 90°, besonders bevorzugt um etwa 90°, von einer Einführposition in eine Verankerungsposition überführbar ist.A system consisting of a lifting key and a lifting sleeve—in particular a lifting sleeve described above—is suitable for the method according to the invention, the lifting key having at least one anchor head and at least one guide rod, the anchor head being designed in such a way that it can be inserted into the lifting sleeve through a sleeve opening and in the lifting chamber and/or on the underside or top of the component by a rotary movement, preferably around the longitudinal axis of the lifting key or the guide rod, preferably around 10° to 90°, particularly preferably around 90°, from an insertion position in an anchoring position can be transferred.

Es liegt im Rahmen der Erfindung, dass an dem Führungsstab des Hubschlüssels, zweckmäßigerweise an der dem Ankerkopf gegenüberliegenden Seite, ein Befestigungselement vorgesehen ist, mit dem der Hubschlüssel an einer Transportvorrichtung fixierbar ist. Bei dem Befestigungselement kann es sich beispielsweise um eine Befestigungsöse handeln. Der Ankerkopf des Hubschlüssels ist hinsichtlich seiner Form derart ausgestaltet, dass er durch zumindest eine Hülsenöffnung in die Hubhülse eingeführt werden kann und in dieser Einführposition durch den Hülsenschaft geführt werden kann. Es empfiehlt sich, dass der Ankerkopf in der Einführposition, in der er durch den Hülsenschaft geführt werden kann, nicht in dem Hülsenschaft drehbar bzw. im Wesentlichen nicht in dem Hülsenschaft drehbar ist. In der Hubkammer der Hubhülse kann der Ankerkopf dann, vorzugsweise durch eine Drehbewegung um die Längsachse des Hubschlüssels bzw. des Führungsstabs von der Einführposition in eine Verankerungsposition überführt werden. Dazu wird der Hubschlüssel in eine Drehbewegung um seine Längsachse versetzt und insbesondere um 10° bis 90°, bevorzugt um 45° bis 90°, besonders bevorzugt um 70° bis 90°, ganz besonders bevorzugt um etwa 90° gedreht. Es ist bevorzugt, dass der Hubschlüssel auf Basis zumindest eines Metalls ausgebildet ist und insbesondere aus zumindest einem Metall besteht. Besonders bevorzugt besteht der Hubschlüssel aus Stahl bzw. im Wesentlichen aus Stahl.It is within the scope of the invention that a fastening element is provided on the guide rod of the lifting key, expediently on the side opposite the anchor head, with which the lifting key can be fixed to a transport device. The fastening element can be, for example, a fastening eyelet. The shape of the anchor head of the lifting key is such that it can be inserted into the lifting sleeve through at least one sleeve opening and, in this insertion position, can be guided through the sleeve shank. It is recommended that the anchor head, in the insertion position in which it can be guided through the socket shank, not be rotatable in the socket shank or essentially not rotatable in the socket shank. In the lifting chamber of the lifting sleeve, the anchor head can then be transferred from the insertion position into an anchoring position, preferably by a rotary movement about the longitudinal axis of the lifting key or guide rod. For this purpose, the lifting key is rotated about its longitudinal axis and in particular by 10° to 90°, preferably by 45° to 90°, particularly preferably by 70° to 90°, very particularly preferably by about rotated 90°. It is preferred that the lifting key is formed on the basis of at least one metal and in particular consists of at least one metal. Particularly preferably, the lifting key consists of steel or essentially of steel.

Es liegt auch im Rahmen der Erfindung, dass der Hubschlüssel nach dem Entfernen des Bauteils aus der Schalung durch die erste oder die zweite Hülsenöffnung in den Hülsenschaft eingeführt wird und vollständig durch die Hubhülse bis zur gegenüberliegenden Seite des Bauteils bzw. der Platte geführt wird und dort durch eine Drehbewegung um die Längsachse des Führungsstabs in eine Verankerungsposition überführt wird. In der Verankerungsposition hintergreifen die Ankerenden des Ankerkopfes im Übrigen zweckmäßigerweise eine Fläche der Hubammer bzw. die Ober- oder Unterseite des Bauteils bzw. der Platte.It is also within the scope of the invention that after the component has been removed from the formwork, the lifting key is inserted through the first or second sleeve opening into the sleeve shank and is guided completely through the lifting sleeve to the opposite side of the component or panel and there is transferred into an anchoring position by a rotary movement about the longitudinal axis of the guide rod. In the anchoring position, the anchor ends of the anchor head expediently engage behind a surface of the lifting arm or the upper or lower side of the component or the plate.

Das erfindungsgemäße Herstellungsverfahren hat sich insbesondere für Bauteile bzw. Fertigbetonbauplatten aus offenporigem Beton bewährt. Bei der erfindungsgemäßen Herstellung des Fertigbetonbauteils ist die im montierten bzw. verlegten Zustand als Oberseite des Bauteils vorgesehene Bauteilseite dem Boden der Schalung zugewandt. Die Hubkammer der Hubhülse ist dem Hülsenende zugeordnet, das als zweite Hülsenöffnung ausgebildet ist. Die zweite Hülsenöffnung ist der Oberseite des Bauteils zugeordnet und auch die Hubkammer ist der Oberseite des Bauteils zugeordnet. Wenn das Fertigbetonbauteil zumindest teilweise ausgehärtet ist wird der Hubschlüssel durch die erste Hülsenöffnung, die der Unterseite des Bauteils zugeordnet ist in den Hülsenschaft eingeführt und in der Hubkammer in die Verankerungsposition überführt. Bei dem anschließenden Entfernen des Bauteils mittels des Hubschlüssels aus der Schalung, bei dem der Hubschlüssel vorzugsweise an einer Transportvorrichtung fixiert wird, erfolgt die Krafteinleitung in das Bauteil bzw. die Platte somit an der als Oberseite des Bauteils vorgesehenen Bauteilseite und folglich an der dem Boden der Schalung zugewandten Seite. Auf diese Weise ist es möglich, das Bauteil bzw. die Platte aus der Schalung zu entfernen, auch wenn das Bauteil bzw. die Platte gemäß bevorzugter Ausführungsvariante aus offenporigem Beton hergestellt ist und/oder noch nicht vollständig ausgehärtet ist.The manufacturing method according to the invention has proven itself in particular for components or precast concrete building panels made of porous concrete. In the production of the precast concrete component according to the invention, the component side intended as the upper side of the component in the assembled or laid state faces the bottom of the formwork. The lifting chamber of the lifting sleeve is associated with the sleeve end, which is designed as the second sleeve opening. The second sleeve opening is associated with the top of the component and the lifting chamber is also associated with the top of the component. When the precast concrete component has at least partially hardened, the lifting key is inserted through the first sleeve opening, which is assigned to the underside of the component, into the sleeve shank and transferred to the anchoring position in the lifting chamber. When the component is then removed from the formwork using the lifting key, in which the lifting key is preferably fixed to a transport device, the force is introduced into the component or the plate on the upper side of the Component provided component side and consequently on the bottom of the formwork side facing. In this way it is possible to remove the component or the plate from the formwork, even if the component or the plate is made of porous concrete according to the preferred embodiment and/or has not yet fully hardened.

Es kann ein Untergrund, insbesondere ein befahrbarer Untergrund mit einer Mehrzahl bzw. einer Vielzahl nebeneinander angeordneter Fertigbetonplatten - beispielsweise 100 bis 400 Fertigbetonplatten - realisiert werden. Jede dieser Fertigbetonplatten kann zumindest zwei einbetonierte Hubhülsen aufweisen. Vorzugsweise nimmt jede Fertigbetonplatte eine Fläche von 1 bis 10 m2, bevorzugt von 2 bis 6 m2 ein. Es ist bevorzugt, dass die Fertigbetonplatten zur Erstellung des Untergrundes bzw. des befahrbaren Untergrundes mittels zumindest einer Transportvorrichtung, beispielsweise mittels zumindest eines Transportkrans in den gewünschten Positionen angeordnet werden, wobei die Fertigbetonplatten über ihre Hubhülsen und bevorzugt über das System aus einem Hubschlüssel und einer Hubhülse an der Transportvorrichtung fixiert sind. Das Verfahren umfasst weiterhin bevorzugt den Schritt der Einführung des Hubschlüssels durch die zweite Hülsenöffnung, die der Oberseite des Bauteils zugeordnet ist in den Hülsenschaft, wobei der Hubschlüssel vollständig durch den Hülsenschaft bis zur Unterseite des Bauteils geführt wird und dort durch eine Drehbewegung um die Längsachse des Hubschlüssels in eine Verankerungsposition überführt wird. Anschließend wird das Bauteil zweckmäßigerweise in dieser Verankerungsposition mittels des Hubschlüssels an einer Transportvorrichtung fixiert und auf diese Weise gehandhabt.A subsurface, in particular a subsurface that can be driven on, can be realized with a plurality or a large number of ready-made concrete slabs arranged next to one another—for example 100 to 400 ready-made concrete slabs. Each of these precast concrete slabs can have at least two lifting sleeves embedded in concrete. Each precast concrete slab preferably occupies an area of 1 to 10 m 2 , preferably 2 to 6 m 2 . It is preferred that the precast concrete slabs are arranged in the desired positions to create the subsoil or the drivable subsoil by means of at least one transport device, for example by means of at least one transport crane, with the precast concrete slabs being lifted via their lifting sleeves and preferably via the system of a lifting key and a lifting sleeve are fixed to the transport device. The method preferably further includes the step of inserting the lift wrench through the second sleeve opening, which is the Top of the component is assigned to the sleeve shaft, the lifting key being guided completely through the sleeve shaft to the underside of the component, where it is converted into an anchoring position by a rotary movement about the longitudinal axis of the lifting key. The component is then expediently fixed in this anchoring position by means of the lifting key on a transport device and handled in this way.

Wenn die Hubhülse gemäß einer alternativen Ausführungsform der Erfindung zumindest zwei Hubkammern aufweist, kann der Hubschlüssel zunächst von der Unterseite des Bauteils durch eine erste Hülsenöffnung in den Hülsenschaft der Hubhülse eingeführt werden und in der der Bauteiloberseite bzw. Plattenoberseite zugeordneten ersten Hubkammer in eine Verankerungsposition überführt werden. Anschließend wird das Fertigbetonbauteil bzw. die Fertigbetonplatte in dieser Verankerungsposition mittels einer Transportvorrichtung gehandhabt. Weiterhin kann der Hubschlüssel im Rahmen eines solchen Verfahrens durch eine zweite Hülsenöffnung, die der Oberseite des Bauteils zugeordnet ist, in den Hülsenschaft eingeführt werden und in einer bevorzugt der Bauteilunterseite bzw. Plattenunterseite zugeordneten zweiten Hubkammer in eine Verankerungsposition überführt werden. Anschließend wird das Bauteil zweckmäßigerweise in der Verankerungsposition mittels des Hubschlüssels an einer Transportvorrichtung fixiert und auf diese Weise gehandhabt.If, according to an alternative embodiment of the invention, the lifting sleeve has at least two lifting chambers, the lifting key can first be inserted from the underside of the component through a first sleeve opening into the sleeve shank of the lifting sleeve and can be transferred to an anchoring position in the first lifting chamber assigned to the top side of the component or the top of the plate . The precast concrete component or the precast concrete slab is then handled in this anchoring position by means of a transport device. Furthermore, within the framework of such a method, the lifting key can be inserted into the sleeve shaft through a second sleeve opening, which is assigned to the upper side of the component, and transferred into an anchoring position in a second lifting chamber, preferably assigned to the underside of the component or plate. The component is then expediently fixed in the anchoring position by means of the lifting key on a transport device and handled in this way.

Der Erfindung liegt die Erkenntnis zugrunde, dass das Fertigbetonbauteil bzw. die Fertigbetonplatte mittels der Hubhülse funktionssicher und einfach an einer Transportvorrichtung fixiert werden kann. Die Fixierung an einer Transportvorrichtung ist insbesondere auch dann möglich, wenn gemäß bevorzugter Ausführungsvariante ein offenporiger Beton als Material für das Fertigbetonbauteil bzw. die Fertigbetonplatte verwendet wird. Da die Hubhülse eine erste und eine zweite Hülsenöffnung aufweist, ist die Hülse von beiden Seiten des Bauteils bzw. der Platte zugänglich und es kann insbesondere eine einfache und besonders vorteilhafte Handhabung des Bauteils bzw. der Platte sowohl im Rahmen der Fertigung der Platte - beispielsweise bei der Ausschalung -, als auch bei der Montage der Platte erfolgen. Es ist weiterhin zu erwähnen, dass die Ausschalung des Bauteils bzw. der Platte mit der Hubhülse auch dann erfolgen kann, wenn das Bauteil noch nicht vollständig ausgehärtet ist und insoweit noch nicht seine vollständige Festigkeit erreicht hat. Ein besonderer Vorteil der Erfindung ist darüber hinaus, dass ein und dieselbe Hubhülse sowohl für die Ausschalung des Bauteils, bei der ein Hubschlüssel in der Hubkammer in eine Verankerungsposition überführt wird und anschließend an einer Transportvorrichtung fixiert wird, als auch bei der Montage des Bauteils bzw. der Platte, bei der vorzugsweise ein Hubschlüssel an der Plattenunterseite in eine Verankerungsposition überführt wird und an einer Transportvorrichtung fixiert wird, verwendet werden kann. Es ist weiterhin zu betonen, dass die erfindungsgemäßen Vorteile auf einfache und wenig aufwändige Art erreicht werden und die Erfindung somit - insbesondere mit Blick auf die bekannten Maßnahmen - geringe Kosten bzw. Fertigungskosten verursacht.The invention is based on the finding that the precast concrete component or the precast concrete slab can be functionally reliably and easily fixed to a transport device by means of the lifting sleeve. The fixation on a transport device is also possible in particular if, according to the preferred embodiment, an open-pored concrete is used as the material for the Precast concrete component or the precast concrete slab is used. Since the lifting sleeve has a first and a second sleeve opening, the sleeve is accessible from both sides of the component or the plate and it can be used in particular a simple and particularly advantageous handling of the component or the plate both in the context of the manufacture of the plate - for example the formwork - as well as during the assembly of the panel. It should also be mentioned that the formwork of the component or the plate with the lifting sleeve can also take place when the component has not yet fully hardened and has therefore not yet reached its full strength. A particular advantage of the invention is that one and the same lifting sleeve can be used both for removing the formwork from the component, during which a lifting key is transferred into an anchoring position in the lifting chamber and then fixed to a transport device, and for assembling the component or the plate, in which a lifting key is preferably transferred to the underside of the plate in an anchoring position and is fixed to a transport device, can be used. It should also be emphasized that the advantages according to the invention are achieved in a simple and uncomplicated manner and the invention thus—in particular with regard to the known measures—incurs low costs or production costs.

Nachfolgend wird das erfindungsgemäße Verfahren anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
einen Schnitt durch ein Bauteil bzw. durch eine Platte mit einbetonierter Hubhülse,
Fig. 2
eine Draufsicht auf eine Hubhülse,
Fig. 3
eine Hubhülse und einen Hubschlüssel in einer perspektivischen Ansicht,
Fig. 4a
den Gegenstand gemäß Fig. 1 mit einem Hubschlüssel in der Einführposition
Fig. 4b
den Gegenstand gemäß Fig. 1 mit einem Hubschlüssel in der Verankerungsposition in der Hubkammer
Fig. 4c
den Gegenstand gemäß Fig. 1 mit einem Hubschlüssel in einer Verankerungsposition an der Unterseite des Bauteils bzw. der Platte.
The method according to the invention is explained in more detail below with reference to a drawing that merely represents an exemplary embodiment. They show in a schematic representation:
1
a section through a component or through a plate with a concrete lifting sleeve,
2
a plan view of a lifting sleeve,
3
a lifting sleeve and a lifting key in a perspective view,
Figure 4a
according to the subject 1 with a lifting key in the insertion position
Figure 4b
according to the subject 1 with a lifting wrench in the anchoring position in the lifting chamber
Figure 4c
according to the subject 1 with a jack wrench in an anchoring position on the underside of the component or panel.

Die Figuren zeigen eine nach dem erfindungsgemäßen Verfahren hergestellte Fertigbetonplatte 1 mit zumindest einer in die Platte 1 einbetonierten Hubhülse 2. Die Platte 1 ist mittels der Hubhülse 2 an einer Transportvorrichtung, beispielsweise einem Kran, fixierbar. Die Hubhülse 2 weist eine erste Hülsenöffnung 3, einen Hülsenschaft 4 zur Aufnahme eines Hubschlüssels 11 und ein der ersten Hülsenöffnung 3 gegenüberliegendes Hülsenende 5 auf. Das Hülsenende 5 ist als zweite Hülsenöffnung 10 ausgebildet. Die Hubhülse 2 weist erfindungsgemäß eine Querschnittsaufweitung in Form einer Hubkammer 6 auf. Der Innendurchmesser dK der Hubkammer 6 ist erfindungsgemäß größer, als die Innenbreite bs des Hülsenschaftes 4. Dies ist insbesondere in den Fig. 1 und 2 zu erkennen. Innendurchmesser dK der Hubkammer 6 meint im Rahmen der Erfindung und im Ausführungsbeispiel insbesondere den größten Innendurchmesser der Hubkammer quer, insbesondere senkrecht zur Längserstreckung bzw. zur Längsachse A der Hubhülse 2. Innenbreite bs des Hülsenschaftes 4 meint im Rahmen der Erfindung und im Ausführungsbeispiel insbesondere die größte Innenbreite des Hülsenschaftes 4 quer, insbesondere senkrecht zur Längserstreckung bzw. zur Längsachse A der Hubhülse 2 bzw. des Hülsenschaftes 4 und quer, insbesondere senkrecht zur Längsmittelachse AQ der Querschnittsfläche des Hülsenschaftes 4. Dies ist insbesondere in der Fig. 2 dargestellt. Im Ausführungsbeispiel gemäß den Figuren (insbesondere Fig. 1 und Fig. 2) mag das Verhältnis des Innendurchmessers dK der Hubkammer 6 zur Innenbreite bs des Hülsenschaftes 4 etwa 2:1 betragen. In die Fertigbetonplatte 1 mögen zumindest zwei Hubhülsen 2 einbetoniert sein. Im Ausführungsbeispiel gemäß Fig. 1 ist lediglich eine Hubhülse 2 dargestellt.The figures show a precast concrete slab 1 produced by the method according to the invention with at least one lifting sleeve 2 concreted into the slab 1. The slab 1 can be fixed to a transport device, for example a crane, by means of the lifting sleeve 2. The lifting sleeve 2 has a first sleeve opening 3 , a sleeve shank 4 for receiving a lifting key 11 and a sleeve end 5 opposite the first sleeve opening 3 . The sleeve end 5 is designed as a second sleeve opening 10 . According to the invention, the lifting sleeve 2 has an enlarged cross section in the form of a lifting chamber 6 . The inner diameter d K of the lifting chamber 6 is greater according to the invention than the inner width bs of the sleeve shank 4. This is particularly the case in FIGS Figures 1 and 2 to recognize. Inside diameter d K of the lifting chamber 6 means in the context of the invention and in the exemplary embodiment in particular the largest inside diameter of the lifting chamber transversely, in particular perpendicular to the longitudinal extent or to the longitudinal axis A of the lifting sleeve 2. Inside width bs of the sleeve shaft 4 means in the context of the invention and in the exemplary embodiment in particular the largest inner width of the sleeve shank 4 across, in particular perpendicular to the longitudinal extent or to the longitudinal axis A of the lifting sleeve 2 or the sleeve shank 4 and transversely, in particular perpendicular to the longitudinal center axis A Q of the cross-sectional area of the sleeve shank 4. This is particularly the case in FIG 2 shown. In the embodiment according to the figures (in particular 1 and 2 ) The ratio of the inside diameter d K of the lifting chamber 6 to the inside width bs of the sleeve shank 4 may be about 2:1. At least two lifting sleeves 2 may be concreted into the precast concrete slab 1 . In the embodiment according to 1 only one lifting sleeve 2 is shown.

Bevorzugt und im Ausführungsbeispiel ist die Hubhülse 2 über ihre gesamte Länge L innen hohl ausgebildet. Im Rahmen der Erfindung und im Ausführungsbeispiel ist die Hubhülse 2 zudem über ihre gesamte Länge L bzw. im Wesentlichen über ihre gesamte Länge L in die Fertigbetonplatte 1 einbetoniert. Länge L der Hubhülse 2 meint im Rahmen der Erfindung und im Ausführungsbeispiel insbesondere die größte Erstreckung der Hubhülse 2 entlang bzw. in Richtung ihrer Längsachse A, wie es insbesondere in den Fig. 1 und 3 zu erkennen ist.Preferably and in the exemplary embodiment, the lifting sleeve 2 is hollow on the inside over its entire length L. Within the scope of the invention and in the exemplary embodiment, the lifting sleeve 2 is also embedded in concrete over its entire length L or essentially over its entire length L in the precast concrete slab 1 . In the context of the invention and in the exemplary embodiment, length L of the lifting sleeve 2 means in particular the greatest extension of the lifting sleeve 2 along or in the direction of its longitudinal axis A, as is particularly the case in FIGS 1 and 3 can be seen.

Die erste Hülsenöffnung 3 ist der Unterseite 7 der Fertigbetonplatte 1 zugeordnet und ist von der Unterseite 7 der Platte 1 zugänglich. Unterseite 7 der Fertigbetonplatte 1 meint im Rahmen der Erfindung und im Ausführungsbeispiel die im montierten Zustand bzw. im verlegten Zustand der Platte 1 dem Montageuntergrund zugewandte Seite der Platte 1. Durch die erste Hülsenöffnung 3 wird der Hubschlüssel 11 in den Hülsenschaft 4 der Hubhülse 2 eingeführt und zwar von der Unterseite 7 der Platte 1, wie es in der Figur 4a dargestellt ist. Das Hülsenende 5 ist als zweite Hülsenöffnung 10 ausgebildet und diese zweite Hülsenöffnung 10 ist der Oberseite 8 der Platte 1 zugeordnet und von der Oberseite 8 der Platte 1 zugänglich. Mit dem Begriff Oberseite der Platte ist in diesem Zusammenhang die im montierten Zustand der Fertigbetonplatte 1 dem Montageuntergrund abgewandte Seite der Platte 1 gemeint.The first sleeve opening 3 is assigned to the underside 7 of the precast concrete slab 1 and is accessible from the underside 7 of the slab 1 . Underside 7 of the precast concrete slab 1 means, within the scope of the invention and in the exemplary embodiment, the side of the slab 1 that faces the mounting substrate when the slab 1 is assembled or laid. The lifting key 11 is inserted through the first sleeve opening 3 into the sleeve shank 4 of the lifting sleeve 2 namely from the underside 7 of the plate 1, as in the Figure 4a is shown. The sleeve end 5 is designed as a second sleeve opening 10 and this second sleeve opening 10 is associated with the upper side 8 of the plate 1 and is accessible from the upper side 8 of the plate 1 . The term top of the panel in this context means that in the assembled state of the precast concrete slab 1 means the side of the slab 1 facing away from the mounting substrate.

Gemäß einer besonders empfohlenen Ausführungsform der Erfindung und im Ausführungsbeispiel ist die Hubkammer 6 als hohlzylindrischer Abschnitt der Hubhülse 2 ausgebildet. Die Hubkammer 6 weist vorzugsweise und im Ausführungsbeispiel einen kreisrunden Querschnitt mit dem Innendurchmesser dK auf. Querschnitt der Hubkammer 6 meint dabei insbesondere den Querschnitt quer, insbesondere senkrecht zur Längsachse A der Hubhülse 2. Der Innendurchmesser dK der als hohlzylindrischer Abschnitt mit kreisrundem Querschnitt ausgebildeten Hubkammer 6 entspricht im Rahmen der Erfindung und im Ausführungsbeispiel dem Kreisdurchmesser bzw. Kreisinnendurchmesser der Querschnittsfläche. Dies ist insbesondere in der Fig. 2 zu erkennen. Zweckmäßigerweise beträgt im Übrigen das Verhältnis der Länge LH der Hubkammer 6 zur Länge L der Hubhülse 2 1:10 bis 1:6, bevorzugt 1:9 bis 1:7, besonders bevorzugt und im Ausführungsbeispiel (Fig. 3) 1:8 bzw. etwa 1:8. Länge LH der Hubkammer meint in diesem Zusammenhang insbesondere die größte Erstreckung der Hubkammer 6 in Längsrichtung der Hubhülse 2 bzw. in Richtung der Längsachse A der Hubhülse 2 .According to a particularly recommended embodiment of the invention and in the exemplary embodiment, the lifting chamber 6 is designed as a hollow-cylindrical section of the lifting sleeve 2 . The lifting chamber 6 preferably and in the exemplary embodiment has a circular cross section with the inside diameter dK . Cross-section of the lifting chamber 6 means in particular the cross-section across, in particular perpendicular to the longitudinal axis A of the lifting sleeve 2. The inner diameter d K of the lifting chamber 6, which is designed as a hollow-cylindrical section with a circular cross-section, corresponds within the scope of the invention and in the exemplary embodiment to the circle diameter or inner circle diameter of the cross-sectional area. This is particularly in the 2 to recognize. Expediently, the ratio of the length L H of the lifting chamber 6 to the length L of the lifting sleeve 2 is 1:10 to 1:6, preferably 1:9 to 1:7, particularly preferably and in the exemplary embodiment ( 3 ) 1:8 or about 1:8. In this context, the length L H of the lifting chamber means in particular the greatest extension of the lifting chamber 6 in the longitudinal direction of the lifting sleeve 2 or in the direction of the longitudinal axis A of the lifting sleeve 2 .

Gemäß einer bevorzugten Ausführungsform der Erfindung und im Ausführungsbeispiel ist der Hülsenschaft 4 der Hubhülse 2 als Hohlkörper ausgebildet, dessen Innenlänge Ls empfohlenermaßen und im Ausführungsbeispiel größer ist, als dessen Innenbreite bs. Innenlänge Ls des Hülsenschaftes 4 meint in diesem Zusammenhang und im Ausführungsbeispiel insbesondere die größte Innenlänge quer, insbesondere senkrecht zur Längsachse A der Hubhülse 2 und entlang bzw. in Richtung der Längsmittelachse AQ der Querschnittsfläche des Hülsenschaftes 4 und somit quer, insbesondere senkrecht zur Innenbreite bs des Hülsenschaftes 4 (Fig. 2). Im Rahmen der Erfindung und im Ausführungsbeispiel entspricht die Innnenlänge Ls des Hülsenschaftes 4 dem Innendurchmesser dK der Hubkammer 6 bzw. entspricht Ls im Wesentlichen dK. Im Ausführungsbeispiel gemäß den Figuren weist der zweckmäßigerweise als Hohlkörper ausgebildete Hülsenschaft 4 eine Querschnittsfläche auf, die als abgerundetes Rechteck ausgebildet ist.According to a preferred embodiment of the invention and in the exemplary embodiment, the sleeve shaft 4 of the lifting sleeve 2 is designed as a hollow body, the inner length Ls of which is recommended and in the exemplary embodiment greater than the inner width bs. In this context and in the exemplary embodiment, the inner length Ls of the sleeve shank 4 means in particular the greatest inner length transversely, in particular perpendicularly, to the longitudinal axis A of the lifting sleeve 2 and along or in the direction of the longitudinal center axis A Q of the cross-sectional area of the sleeve shank 4 and thus transversely, in particular perpendicularly to the inner width bs of the sleeve shank 4 ( 2 ). Within the scope of the invention and in the exemplary embodiment, the inner length Ls of the sleeve shaft 4 corresponds to the inner diameter dK of the lifting chamber 6 or essentially corresponds to Ls dK Rectangle is formed.

Zweckmäßigerweise und im Ausführungsbeispiel ist die Längsachse A der Hubhülse 2 quer, insbesondere senkrecht beziehungsweise im Wesentlichen senkrecht zu der Unterseite 7 und der Oberseite 8 der Fertigbetonplatte 1 angeordnet. Somit ist die Längsachse A der Hubhülse 2 im montierten Zustand der Fertigbetonplatte 1 vorzugsweise quer, insbesondere senkrecht bzw. im Wesentlichen senkrecht zu dem Montageuntergrund orientiert.Expediently and in the exemplary embodiment, the longitudinal axis A of the lifting sleeve 2 is arranged transversely, in particular perpendicularly or essentially perpendicularly to the underside 7 and the upper side 8 of the precast concrete slab 1 . Thus, the longitudinal axis A of the lifting sleeve 2 in the assembled state of the precast concrete slab 1 is preferably oriented transversely, in particular perpendicularly or essentially perpendicularly to the mounting base.

Die Hubkammer 6 ist dem Hülsenende 5 zugeordnet. Bevorzugt beträgt der Abstand a zwischen der Hubkammer 6 und dem Hülsenende 5 bzw. der zweiten Hülsenöffnung 10 zwischen 10 % und 35 %, ganz besonders bevorzugt zwischen 15 % und 30 % der Länge L der Hubhülse 2. Im Ausführungsbeispiel (siehe insbesondere Fig. 3) mag der Abstand a zwischen der Hubkammer 6 und dem Hülsenende 5 etwa 20 % der Länge L der Hubhülse 2 betragen. Abstand a zwischen der Hubkammer 6 und dem Hülsenende 5 meint im Rahmen der Erfindung und im Ausführungsbeispiel insbesondere den größten Abstand zwischen der Hubkammer 6 und dem Hülsenende 5 in Richtung/entlang der Längserstreckung bzw. Längsachse A der Hubhülse 2, wobei die Länge LH der Hubkammer 6 selbst zur Hälfte zu diesem Abstand a zählt.The lifting chamber 6 is assigned to the end 5 of the sleeve. The distance a between the lifting chamber 6 and the sleeve end 5 or the second sleeve opening 10 is preferably between 10% and 35%, particularly preferably between 15% and 30% of the length L of the lifting sleeve 2. In the exemplary embodiment (see in particular 3 ) The distance a between the lifting chamber 6 and the sleeve end 5 may be about 20% of the length L of the lifting sleeve 2 . Within the scope of the invention and in the exemplary embodiment, distance a between the lifting chamber 6 and the sleeve end 5 means in particular the greatest distance between the lifting chamber 6 and the sleeve end 5 in the direction/along the longitudinal extension or longitudinal axis A of the lifting sleeve 2, with the length L H being the Lifting chamber 6 itself counts for half of this distance a.

Gemäß bevorzugter Ausführungsform und im Ausführungsbeispiel weist die Hubhülse 2 zwei Verankerungsrippen 9 auf, die den Außenumfang der Hubhülse 2 jeweils vollständig bzw. im Wesentlichen vollständig umlaufen.According to a preferred embodiment and in the exemplary embodiment, the lifting sleeve 2 has two anchoring ribs 9 which each completely or substantially completely run around the outer circumference of the lifting sleeve 2 .

Die Fertigbetonplatte 1 in den Figuren mag gemäß bevorzugter Ausführungsvariante der Erfindung aus zumindest einem offenporigen Beton bestehen bzw. im Wesentlichen bestehen. Die Hubhülse 2 besteht zweckmäßigerweise aus zumindest einem Kunststoff.According to a preferred embodiment variant of the invention, the precast concrete slab 1 in the figures may consist or essentially consist of at least one open-pored concrete. The lifting sleeve 2 expediently consists of at least one plastic.

In den Figuren weiterhin dargestellt ist ein Hubschlüssel 11 der für die Zusammenwirkung mit der Hubhülse 2 vorgesehen ist. Der Hubschlüssel 11 weist zumindest einen Ankerkopf 12 und zumindest einen Führungsstab 13 auf. Der Ankerkopf 12 ist derart ausgestaltet, dass er durch eine Hülsenöffnung 3, 10 in die Hubhülse 2 eingeführt werden kann und in der Hubkammer 6 und/oder an der Unterseite 7 bzw. Oberseite 8 der Platte 1 durch eine Drehbewegung um die Längsachse des Hubschlüssels 11 bzw. des Führungsstabes 13, vorzugsweise um 10° bis 90°, bevorzugt um etwa 90°, von einer Einführposition (Fig. 4a) in eine Verankerungsposition (Fig. 4b und 4c) überführt werden kann. Der Hubschlüssel 11 ist in der Fig. 3 zusammen mit der Hubhülse 2 dargestellt. Im Rahmen der Erfindung und im Ausführungsbeispiel ist an dem Führungsstab 13 des Hubschlüssels 11 an der dem Ankerkopf 12 gegenüberliegenden Seite ein Befestigungselement 14 vorgesehen, mit dem der Hubschlüssel 11 an einer Transportvorrichtung fixierbar ist. Im Ausführungsbeispiel gemäß der Fig. 3 ist das Befestigungselement 14 als Befestigungsöse ausgestaltet. Der Hubschlüssel 11 besteht im Rahmen der Erfindung zweckmäßigerweise aus zumindest einem Metall. Im Ausführungsbeispiel gemäß den Figuren mag der Hubschlüssel 11 aus Stahl bestehen bzw. im Wesentlichen aus Stahl bestehen.Also shown in the figures is a lifting key 11 which is provided for interaction with the lifting sleeve 2 . The lifting wrench 11 has at least one anchor head 12 and at least one guide rod 13 . The anchor head 12 is designed in such a way that it can be inserted into the lifting sleeve 2 through a sleeve opening 3, 10 and in the lifting chamber 6 and/or on the underside 7 or upper side 8 of the plate 1 by a rotary movement about the longitudinal axis of the lifting key 11 or the guide rod 13, preferably by 10° to 90°, preferably by about 90°, from an insertion position ( Figure 4a ) to an anchor position ( Figures 4b and 4c ) can be transferred. The Hubspanner 11 is in the 3 shown together with the lifting sleeve 2. Within the scope of the invention and in the exemplary embodiment, a fastening element 14 is provided on the guide rod 13 of the lifting key 11 on the side opposite the anchor head 12, with which the lifting key 11 can be fixed to a transport device. In the embodiment according to 3 the fastening element 14 is designed as a fastening eyelet. Within the scope of the invention, lifting key 11 expediently consists of at least one metal. In the exemplary embodiment according to the figures, the lifting key 11 may consist of steel or essentially consist of steel.

Im Rahmen der Erfindung und im Ausführungsbeispiel gemäß den Figuren kommen der Hubhülse 2 zumindest zwei Funktionen zu. Im Zuge der Fertigung der Fertigbetonplatte 1 wird die Platte 1 in einer Schalung gefertigt, wobei die Oberseite 7 der Platte 1 dem Boden der Schalung zugewandt ist. Während der Fertigung der Platte 1 wird zumindest eine Hubhülse 2 in die Platte 1 eingebracht. Nach der zumindest teilweisen Aushärtung der Platte 1 wird zur Entfernung der Platte 1 aus der Schalung ein Hubschlüssel 11 durch die der als Unterseite 7 des Bauteils vorgesehenen Seite zugewandten ersten Hülsenöffnung 3 in den Hülsenschaft 4 eingeführt. Dies ist in der Fig. 4a dargestellt. In der Hubkammer 6 wird der Hubschlüssel 11 in eine Verankerungsposition überführt. Diese Verankerungsposition ist in der Fig. 4b dargestellt. Zur Überführung von der Einführposition (Fig. 4a) in die Verankerungsposition (Fig. 4b) wird der Hubschlüssel 11 durch eine Drehbewegung um die Längsachse des Hubschlüssels 11 bzw. des Führungsstabs 13 - zweckmäßigerweise um etwa 90° - gedreht. Anschließend kann die Platte 1 mittels des Hubschlüssels 11 aus der Schalung entfernt bzw. gehoben werden. Dazu ist es möglich, dass der Hubschlüssel 11 mittels des Befestigungselementes 14 an einer Transportvorrichtung fixiert wird. Somit erfüllt die in der Platte 1 einbetonierte Hubhülse 2 eine erste Funktion im Rahmen der Fertigung der Platte 1 (Fig. 4a und 4b).Within the scope of the invention and in the exemplary embodiment according to the figures, the lifting sleeve 2 has at least two functions. In the course of manufacturing the precast concrete slab 1, the slab 1 is manufactured in a formwork, with the upper side 7 of the slab 1 facing the bottom of the formwork. At least one lifting sleeve 2 is introduced into the plate 1 during the manufacture of the plate 1 . After the at least partial hardening of the plate 1, a lifting key 11 is inserted into the sleeve shank 4 through the first sleeve opening 3 facing the side intended as the underside 7 of the component in order to remove the plate 1 from the formwork. This is in the Figure 4a shown. In the lifting chamber 6 the lifting key 11 is transferred into an anchoring position. This anchoring position is in the Figure 4b shown. For transfer from the insertion position ( Figure 4a ) to the anchor position ( Figure 4b ) is the lifting key 11 by a rotary movement about the longitudinal axis of the lifting key 11 or the guide rod 13 - rotated - expediently by about 90 °. The plate 1 can then be removed or lifted out of the formwork using the lifting key 11 . For this purpose it is possible that the lifting key 11 is fixed to a transport device by means of the fastening element 14 . The lifting sleeve 2 concreted in the plate 1 thus fulfills a first function in the production of the plate 1 ( Figures 4a and 4b ).

Der Hubhülse 2 kommt empfohlenermaßen eine weitere Funktion im Rahmen der Montage der Platte 1 auf dem vorgesehenen Montageuntergrund zu. Für die Montage der Platte 1 ist diese bereits so gedreht, dass die Plattenunterseite 7 in Richtung des Montageuntergrundes zeigt. Dies ist in der Fig. 4c dargestellt. Zur Montage bzw. zum Verlegen der Platte 1 kann der Hubschlüssel 11 von der Oberseite der Platte 8 durch die zweite Hülsenöffnung 10 in den Hülsenschaft 4 eingeführt werden und vollständig in dieser Einführposition durch die Hubhülse 2 hindurchgeführt werden. Diese Einführposition im Zuge der Montage ist in den Figuren nicht näher dargestellt. Anschließend kann der Hubschlüssel 11 an der Unterseite 7 der Platte 1 durch eine Drehbewegung um die Längsachse des Hubschlüssels 11 bzw. des Führungsstabs 13 um etwa 90° von der Einführposition in die Verankerungsposition überführt werden. Diese Verankerungsposition ist in der Fig. 4c dargestellt. In der Verankerungsposition des Hubschlüssels 11 hintergreifen die Ankerenden 15 des Ankerkopfes 12 empfohlenermaßen und im Ausführungsbeispiel eine Fläche 16 der Hubkammer 6 (Fig. 4b) bzw. die Unterseite 7 der Platte 1 (Fig. 4c).The lifting sleeve 2 is recommended to have an additional function when mounting the plate 1 on the intended mounting base. For the assembly of the plate 1, this is already turned so that the plate underside 7 points in the direction of the mounting surface. This is in the Figure 4c shown. To mount or move the plate 1, the lifting key 11 can be inserted from the top of the plate 8 through the second sleeve opening 10 into the sleeve shank 4 and completely passed through the lifting sleeve 2 in this insertion position. This insertion position during assembly is in the Figures not shown in detail. The lifting key 11 on the underside 7 of the plate 1 can then be transferred from the insertion position to the anchoring position by a rotary movement about the longitudinal axis of the lifting key 11 or the guide rod 13 by approximately 90°. This anchoring position is in the Figure 4c shown. In the anchoring position of the lifting key 11, the anchor ends 15 of the anchor head 12 engage behind it, as recommended, and in the exemplary embodiment, a surface 16 of the lifting chamber 6 ( Figure 4b ) or the underside 7 of plate 1 ( Figure 4c ).

Claims (11)

  1. A method for manufacturing a prefabricated concrete component, particularly a prefabricated concrete slab (1), wherein the component is manufactured in a formwork, wherein the component side, which in the installed state of the component forms the upper side (8) of the component, faces the bottom of the formwork,
    wherein at least one lifting sleeve (2) is inserted into the component during the manufacture of the component, wherein the component can be fixed on a transport device by means of the lifting sleeve (2),
    wherein the lifting sleeve (2) has at least one first sleeve opening (3), at least one sleeve shaft (4) for receiving a lifting key and a sleeve end (5) lying opposite of the first sleeve opening (3), wherein the lifting sleeve (2) has at least one cross-sectional widening in the form of a lifting chamber (6), and wherein the inside diameter (dk) of the lifting chamber (6) is greater than the internal width (bs) of the sleeve shaft (4),
    wherein the lifting key is after at least partial curing of the component inserted into the sleeve shaft (4) through the first sleeve opening (3), which is assigned to the side forming the underside (7) of the component, and transferred into an anchoring position in the lifting chamber (6) in order to remove the component from the formwork, and wherein the component is subsequently removed from or lifted out of the formwork by means of the lifting key,
    wherein the sleeve end (5) is realized in the form of a second sleeve opening (10) that is assigned to the upper side (8) of the component, which in the installed state of the component faces away from the installation substructure, and accessible from the upper side (8) of the component,
    and wherein the lifting chamber (6) is respectively assigned to the sleeve end (5) or the second sleeve opening (10), and wherein the distance (A) between the lifting chamber (6) and the sleeve end (5) amounts to between 2% and 49% of the length (L) of the lifting sleeve (2).
  2. The method according to claim 1, wherein at least two lifting sleeves (2) are respectively encased in the prefabricated concrete component or in the prefabricated concrete slab (1).
  3. The method according to one of claims 1 or 2, wherein the lifting sleeve (2) is at least sectionally realized with a hollow interior and preferably realized with a hollow interior over its entire length (L) or essentially its entire length (L).
  4. The method according to one of claims 1 to 3, wherein the lifting sleeve (2) is encased in the component over its entire length (L) or essentially its entire length (L).
  5. The method according to one of claims 1 to 4, wherein the lifting chamber (6) is realized in the form of a hollow-cylindrical section of the lifting sleeve (2), which particularly has a round cross section, preferably a circular cross section, with the inside diameter dk.
  6. The method according to one of claims 1 to 5, wherein the sleeve shaft (4) is realized in the form of a hollow body, the internal length (Ls) of which preferably is greater than its internal width (bs).
  7. The method according to one of claims 1 to 6, wherein the longitudinal axis (A) of the lifting sleeve (2) is arranged transverse, particularly perpendicular or essentially perpendicular, to the underside (7) and/or the upper side (8) of the component.
  8. The method according to one of claims 1 to 7, wherein the distance (a) between the lifting chamber (6) and the sleeve end (5) amounts to between 5% and 40%, preferably between 7% and 35%, particularly between 10% and 30%, e.g. between 15% and 25%, of the length (L) of the lifting sleeve (2).
  9. The method according to one of claims 1 to 8, wherein the lifting sleeve (2) has at least one anchoring rib (9) that extends over at least 70%, preferably at least 80%, of the outer circumference of the lifting sleeve (2), particularly over the entire or essentially the entire outer circumference of the lifting sleeve.
  10. The method according to one of claims 1 to 9, wherein the component or the prefabricated concrete slab (1) is respectively manufactured on the basis of at least one open-pored concrete.
  11. The method according to one of claims 1 to 10, wherein the lifting key (11) has at least one anchor head (12) and at least one guide rod (13), wherein the anchor head (12) is realized in such a way that it can be inserted into the lifting sleeve (2) through a sleeve opening (3, 10) and transferred from an inserting position into an anchoring position in the lifting chamber (6) and/or on the underside (7) of the component by means of a rotational movement, preferably over 10° to 90°, particularly over approximately 90°, about the longitudinal axis of the lifting key (11) or the guide rod (12).
EP20183120.3A 2020-06-30 2020-06-30 Method for the production of a pre-cast concrete component Active EP3933141B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20183120.3A EP3933141B1 (en) 2020-06-30 2020-06-30 Method for the production of a pre-cast concrete component
PL20183120.3T PL3933141T3 (en) 2020-06-30 2020-06-30 Method for the production of a pre-cast concrete component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20183120.3A EP3933141B1 (en) 2020-06-30 2020-06-30 Method for the production of a pre-cast concrete component

Publications (2)

Publication Number Publication Date
EP3933141A1 EP3933141A1 (en) 2022-01-05
EP3933141B1 true EP3933141B1 (en) 2022-07-27

Family

ID=71409162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20183120.3A Active EP3933141B1 (en) 2020-06-30 2020-06-30 Method for the production of a pre-cast concrete component

Country Status (2)

Country Link
EP (1) EP3933141B1 (en)
PL (1) PL3933141T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005975A1 (en) * 1980-02-18 1981-09-03 Walther Ing.(grad.) 4952 Porta Westfalica Schröder Concrete prefabricated component transport loading device - has hammer-head socket beginning as circular and ending in oval shape
DE9111399U1 (en) * 1991-09-13 1991-12-12 Weidner, Georg, 8771 Steinfeld, De
DE19523476C2 (en) * 1995-06-28 2000-11-02 Herbert Schulte Transport system for concrete parts
JP4137531B2 (en) * 1999-07-05 2008-08-20 株式会社日栄商事 Concrete product lifting equipment
EP1293714B1 (en) * 2001-09-17 2005-07-20 HILTI Aktiengesellschaft Embeddable, intumescent pipe transit

Also Published As

Publication number Publication date
PL3933141T3 (en) 2022-12-27
EP3933141A1 (en) 2022-01-05

Similar Documents

Publication Publication Date Title
DE69837524T2 (en) Method for producing an anchoring, anchoring part and tensioning element for this purpose
EP1760208B1 (en) System and method for making insulated cavity walls
DE2443329B2 (en) Concrete shaped stone for a retaining wall
EP3690159A1 (en) Building section and method for thermal decoupling of concreted sections of buildings
DE60127646T2 (en) Device for protecting transport anchors with a tubular body during setting in concrete in a prefabricated component
EP3190244A1 (en) Threaded sleeve for anchoring of building elements in concrete and a spacing tube
EP2993279B1 (en) Building with a reinforcing element made of high-strength concrete for increasing puncture resistance
EP3933141B1 (en) Method for the production of a pre-cast concrete component
DE202009004195U1 (en) Reinforcement device for producing a prefabricated component
DE2724398A1 (en) Anchoring bars for chimney stack foundation - are placed by gauge ring removed after concrete has harden
EP3696320B1 (en) Bridge abutment with connection between wall reinforcement and wing wall element
EP3263787B1 (en) Pre-cast concrete component, in particular pre-cast concrete panel, transportation anchor for such a concrete component
EP3851607A1 (en) Positioning means for a textile reinforcement layer of a concrete component, a textile reinforcement layer and a reinforced concrete component comprising a positioning means
EP3868954B1 (en) Concrete paving block and method for manufacturing the same
EP3492665A1 (en) Finished concrete part with at least one load-absorbing component and connection plate for assembly in the gap between same and load-absorbing component
EP3330448A1 (en) Device and method for connecting two components in a certain relative orientation and concrete structure created using the same
EP2873778A1 (en) Connection arrangement and connection system for prefabricated concrete elements
DE3632703A1 (en) Joint-shuttering element
DE102018122202B4 (en) Device and method for connecting textile-reinforced, flat concrete elements to an element wall and use of the device
EP1342847B1 (en) Floor element and process for making a floor covering with these elements
DE102016101360A1 (en) Prefabricated part and method for producing a finished part
DE102022119896A1 (en) Fastening element with insert element, especially for solar panels
DE102007028324B4 (en) Concrete shaft and load-bearing element
EP2000726A2 (en) Concrete shaft
DE102015110887A1 (en) Device and method for lifting a manhole cover, in particular manhole cover

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20201215

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

B565 Issuance of search results under rule 164(2) epc

Effective date: 20201117

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220216

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502020001420

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1507170

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221128

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221027

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221127

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502020001420

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

26N No opposition filed

Effective date: 20230502

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20230620

Year of fee payment: 4

Ref country code: FR

Payment date: 20230628

Year of fee payment: 4

Ref country code: DE

Payment date: 20230503

Year of fee payment: 4

Ref country code: CZ

Payment date: 20230623

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20230623

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20230619

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230702

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230630

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220727