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EP4296453A1 - Dispositif pour le chargement et le positionnement d'éléments préfabriqués de surfaces de toit - Google Patents

Dispositif pour le chargement et le positionnement d'éléments préfabriqués de surfaces de toit Download PDF

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Publication number
EP4296453A1
EP4296453A1 EP23180218.2A EP23180218A EP4296453A1 EP 4296453 A1 EP4296453 A1 EP 4296453A1 EP 23180218 A EP23180218 A EP 23180218A EP 4296453 A1 EP4296453 A1 EP 4296453A1
Authority
EP
European Patent Office
Prior art keywords
batten
longitudinal
beams
cross
grippers
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.)
Pending
Application number
EP23180218.2A
Other languages
German (de)
English (en)
Inventor
Johannes Ziegler
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.)
Bauer Holzbau GmbH
Original Assignee
Bauer Holzbau 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 Bauer Holzbau GmbH filed Critical Bauer Holzbau GmbH
Publication of EP4296453A1 publication Critical patent/EP4296453A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/167—Tools or apparatus specially adapted for working-up plates, panels or slab shaped building elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-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
    • B66C1/10—Load-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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks

Definitions

  • the invention relates to a device for loading and positioning prefabricated roof elements.
  • prefabricated roof elements are then placed on the building using a crane on site and connected to form a complete roof.
  • the prince purlin and the middle purlins as well as the chair thresholds are often placed as continuous beams on existing supporting elements, such as the masonry, as a supporting structure.
  • the prefabricated roof elements are then added attached to this support structure with the help of a crane and then fixed, for example by nailing and/or screwing.
  • a single roof surface element could be sufficient for each side of the roof structure.
  • a roof structure can be built on site in a very short time and the roofer can immediately start covering the roof with tiles, for example.
  • a prefabricated roof surface element usually has a cross batten on one side (often also called roof battens), which runs transversely with respect to the rafters of a roof surface element and on which the roof tiles are usually mounted.
  • This cross batten has a different batten grid depending on the roof construction and the type of tile that is to be attached to the cross batten, so that a device for loading and positioning prefabricated roof elements should take the different batten grids into account.
  • the prefabricated roof element can be hung on a device for loading and positioning using movable batten grippers, which are designed to work together with the cross battens of the prefabricated roof surface element, in particular to reach behind them.
  • Such a device can be used, for example, to grab the roof element prefabricated in the halls of a carpentry workshop over the crossbars and thus load it onto a truck. The same device can then be used on site at the construction site to unload the prefabricated roof elements from the truck and to position the prefabricated roof element using the crane suspended from the device.
  • the inventors have also recognized that a construction with a simple frame made of longitudinal beams and cross beams does not have sufficient stability to support larger roof elements. It has been shown that by moving at least one of the two cross members from the end of the longitudinal members into the interior of the structure, greater stability along the longitudinal members could be achieved. The load distribution across the batten grippers is improved by the indented cross member. In particular, CE certification can also be achieved for larger load-bearing profiles.
  • both cross members are arranged at a distance from the respective ends of the longitudinal members.
  • this measure further improves the bending strength of the device.
  • the two longitudinal beams have a length between approximately 200 cm and 400 cm, preferably between 260 cm and 350 cm, in particular between 290 and 320 cm.
  • the distance between the cross members and the ends of the longitudinal members is between 45 cm and 60 cm, preferably between 47 cm and 55 cm.
  • the crossbars of the prefabricated roof elements can, as already explained, comprise different batten grids, and the movable batten grippers, which are arranged on the longitudinal beams in order to grip the crossbars, must not collide with the crossbeams, the crossbeam must be placed in the specified distance ranges particularly advantageous. This means there is still complete freedom with regard to the usual batten grids.
  • the batten grid also called the batten width
  • the movable batten grippers can therefore be adjusted to the required batten grid without the batten grippers colliding with the cross beams.
  • a central longitudinal beam is arranged between the two longitudinal beams, which is displaceable along the cross beams and can be fixed in different positions along one of the two cross beams.
  • a transversely movable central longitudinal beam allows different distances to grab prefabricated roof elements. This is because the batten grippers can typically only grip behind the cross battens of a prefabricated roof surface element in areas between the rafters or a counter batten of the roof surface element that runs in the longitudinal direction.
  • a clamping device can be provided at the intersection points between the central longitudinal member and the two cross members. This can be provided at both intersections or only at one intersection. Furthermore, the clamping device can exert a clamping force via a screw or a lever. Since the central longitudinal beam fixes itself under load, the clamping device can also be dispensed with.
  • a fixed batten gripper is arranged on at least one of the longitudinal beams and/or the central longitudinal beam, which is immovably fixed along the longitudinal beams or the central longitudinal beam.
  • the inventors have recognized that it is particularly advantageous to arrange a fixed gripping element on the longitudinal beams. From this fixed batten gripper, the batten grid determines the distances between the other movable batten grippers. The other gripping elements can thus be moved in accordance with the batten grid with respect to this fixed gripping element and then fixed.
  • the fixed batten gripper along the longitudinal beams between the cross beams and/or to arrange it at least at a distance of at least 80 cm from the ends of the longitudinal beams.
  • the batten grid or the distances between the movable batten grippers can vary on both sides of the fixed batten gripper. This makes it easier to create free space for placing the cross beams in the construction without them colliding with the movable batten grippers.
  • the fixed batten gripper were arranged at the end of the longitudinal beams, this would cover the freedom of movement required for the usual batten grids movable batten gripper always at least one area in which a cross member would have to be arranged.
  • the fixed batten gripper can in particular be welded to the longitudinal beam or the central longitudinal beam.
  • the batten grippers protrude on one side of the longitudinal beams and the cross beams are arranged on the side of the longitudinal beams opposite the batten grippers.
  • the cross member is therefore facing away from the prefabricated roof surface element, in particular from its cross battens, in relation to the longitudinal members.
  • the cross member can be dimensioned sufficiently large without the cross member colliding with the cross battens of the prefabricated roof surface element.
  • the cross member can be designed as a hollow profile carrier.
  • a 50 cm by 50 cm rectangle hollow profile e.g. made of steel, especially stainless steel, can be used.
  • At least one batten gripper preferably all of the displaceable batten grippers, has a gripping hook and a counter plate, and the gripping hook is connected to the counter plate via a locking means in order to clamp the displaceable batten gripper on the longitudinal beam in a definable position.
  • the gripping hook is for this purpose set up to work together with the crossbars of the prefabricated roof surface element.
  • the displaceable batten grippers which can be positioned flexibly along the longitudinal beams, can therefore, on the one hand, include gripping hooks, which grip behind the cross battens of the prefabricated roof surface element, and are arranged on the side of the longitudinal beams facing the roof surface element.
  • a counter plate runs on the side of the longitudinal beams facing away from the roof surface element, which clamps the longitudinal beam between the gripping hook and itself using a locking means such as a screw or an eccentric lever.
  • the device can have a safety latch which is designed to secure an inserted cross batten against slipping out of the batten gripper.
  • the safety latch prevents this because a crossbar, which is preferably inserted on the fixed batten gripper, can no longer be freed without releasing the safety latch.
  • At least three, preferably four, crane attachment points can be provided on the device.
  • the crane attachment points for example in the form of retaining eyes, are designed to attach at least three retaining ropes and/or chains of a crane to them.
  • the crane attachment points can be arranged at least in a triangle (that is not to say on a line), so that the roof surface element can be positioned by changing the length of the retaining ropes and/or chains.
  • At least one side protection fastening element in particular a snap hook, can be provided on the device.
  • the side protection can include railing elements, for example.
  • one or more side protection fastening elements can be attached to the loading and positioning device.
  • the device can also serve as fall protection. In some cases, this means that there is no need for scaffolding.
  • the device can also be used as a means of transport for side protection that is no longer needed.
  • side protection that is no longer needed can be attached to the side protection fastening elements using (disposable) strap slings and transported back to the truck together with the device.
  • snap hooks welded to the sides of the longitudinal beams can be provided.
  • Figure 1 shows a loading and positioning device, provided overall with the reference number 10, with which a prefabricated roof surface element 12, shown here only sketchily and in dashed lines, can be loaded and positioned.
  • the prefabricated roof surface element 12 typically has several rafters 14 defining a longitudinal direction L.
  • the rafters 14 are connected with the help of crossbars 16, which are arranged in a predetermined grid dimension RL along the rafters 14 and are nailed and / or screwed onto them.
  • the prefabricated roof surface element 12 thus results as a coherent unit.
  • prefabricated roof surface element 12 such as insulation layers, vapor barriers and/or panel substructures, are not important for the present invention and are not shown here, but they can also be present on a prefabricated roof element 12.
  • a roof surface element will often also have a counter batten running in the longitudinal direction L behind the cross battens 16, which ensures rear ventilation of the roof tiles.
  • this is of minor importance for understanding the present invention, since the counter battens with respect to the device according to the invention are comparable to the rafters 14 shown here.
  • the loading and positioning device 10 has two longitudinal beams 18 and 20, which are connected to one another via two cross beams 22 and 24.
  • all components are made of steel. But other materials are also conceivable.
  • the longitudinal beams 18, 20 are essentially constructed from two U-profiles 26 and 28 placed against each other with their rear walls.
  • the U-profiles 26, 28 are slightly spaced apart, so that a gap 30 remains between the two U-profiles 26, 28.
  • cover plates 32 are welded to the front ends of the longitudinal beams 18, 20.
  • the longitudinal beams 18, 20 run approximately parallel to the rafters 14 of the roof surface element 12.
  • the two cross beams 22, 24 are designed here as rectangular hollow profile beams, which are fastened, in particular welded, to the longitudinal beams 18, 20 at their ends.
  • the two cross members 22, 24 rest on the longitudinal members (in Fig. 1 from above).
  • the positioning of the two cross members 22, 24 along the longitudinal members 18, 20 is crucial here. This is because they are spaced at a distance A in the longitudinal direction from the respective ends of the longitudinal beams 18, 20.
  • the distance A is, for example, approximately 50 cm. It can be identical on both sides, but can also be different.
  • Retaining eyes 34 are also attached to the cross beams 22, 24 as crane attachment points, with which the loading and positioning device 10 can be attached to crane hooks of a crane, not shown.
  • the central longitudinal beam 36 is displaceable along the cross beams 22, 24 and can be fixed in different positions via a clamping device 38.
  • Fixed batten grippers 40 and movable batten grippers 42 are arranged along the longitudinal beams 18, 20, 36.
  • the fixed batten grippers 40 are arranged on the longitudinal beams 18, 20 in the area between the cross beams 22, 24. In particular, the fixed batten grippers 40 are arranged at approximately 1/3 of the length of the longitudinal beams 18, 20.
  • the fixed batten grippers 40 define a kind of zero point for the arrangement of the movable batten grippers 42, since these must be placed in a manner adapted to the grid dimension RL of the cross battens 16 of the prefabricated roof surface element 12.
  • the movable batten grippers 42 have a gripping hook 44 with which the cross battens 16 are gripped behind. Furthermore, the displaceable batten grippers 42 have a counter plate 46 which rests on the opposite side of the longitudinal beam 18, 20 with respect to the gripping hook 44. The gripping hook 44 and the counter plate 46 are connected to one another via a screw 48, which passes through the gap 30 between the two U-profiles 26, 28 of the longitudinal beam 18, 20. By tightening the screw 48 and , the movable batten grippers 42 can be fixed at any position along the longitudinal beam 18, 20 and the central longitudinal beam 36. The screw 48 thus serves as a simple locking means.
  • the loading and positioning device 10 has a securing pin 60 as a securing element, which is arranged here on the fixed batten gripper 42 of the central longitudinal beam 36.
  • the locking pin 60 can be used when the crossbar is inserted
  • the loading and positioning device 10 can also have four snap hooks (not shown here) as side protection fasteners.
  • the loading and positioning device 10 can be used, for example, as follows: First, the displaceable batten grippers 42 and the central longitudinal beams 18, 20 are adjusted and fixed so that their distances are compatible with the grid dimension RL of the crossbars 16 or the distances between the rafters 14 of a prefabricated roof surface element 12 that is to be loaded or positioned.
  • the loading and positioning device 10 is then attached to the roof surface element 12 in such a way that the batten grippers 40, 42 grip behind the cross battens 16.
  • the loading and positioning device 10 is hung on a crane together with the roof surface element 12 via the retaining eyes 34. This can then easily load the roof surface element 12 or position it on a roof truss.
  • the loading and positioning device 10 Before the loading and positioning device 10 is transported back from the roof to a truck, side protection that is no longer required can be attached to the carabiner hook using strap loops. As a result, the loading and positioning device 10 also serves as a means of transport for the side protection.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP23180218.2A 2022-06-20 2023-06-20 Dispositif pour le chargement et le positionnement d'éléments préfabriqués de surfaces de toit Pending EP4296453A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022115264.2A DE102022115264A1 (de) 2022-06-20 2022-06-20 Vorrichtung zum Verladen und Positionieren von vorgefertigten Dachflächenelementen

Publications (1)

Publication Number Publication Date
EP4296453A1 true EP4296453A1 (fr) 2023-12-27

Family

ID=86904178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23180218.2A Pending EP4296453A1 (fr) 2022-06-20 2023-06-20 Dispositif pour le chargement et le positionnement d'éléments préfabriqués de surfaces de toit

Country Status (2)

Country Link
EP (1) EP4296453A1 (fr)
DE (1) DE102022115264A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024101044A1 (de) 2024-01-15 2025-07-17 Bauer Holzbau Gesellschaft mit beschränkter Haftung Vorfertigungsvorrichtung zur Vorfertigung von Holzbau-Fertigbauteilen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703560C2 (de) 1997-01-31 2000-06-21 Walter Bauer Vorrichtung zum Vorfertigen von Dachflächenelementen
US20010055523A1 (en) * 1999-11-24 2001-12-27 Henry M. Slodden Verticle lifting and moving
US20090232623A1 (en) * 2008-03-11 2009-09-17 The Mattamy Corporation Roof hoist
US11014788B1 (en) * 2019-12-10 2021-05-25 Jacob Gentile Modular crane attachment device for purlins

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007016640U1 (de) 2007-11-27 2008-03-20 Bos Gmbh Hebegeschirr zum Heben und Transportieren von Gütern, insbesondere plattenförmigen Bauelementen oder Containern
US20170067266A1 (en) 2015-09-08 2017-03-09 Camilo Caudilla Alfarero Move up apparatus and method in multi floor construction
DE102021201615A1 (de) 2021-02-19 2022-08-25 Noe-Schaltechnik Georg Meyer-Keller Gmbh + Co. Kg Verfahren und Vorrichtung zum Herstellen einer Deckenschalung zum Bau von Stahlbetondecken

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703560C2 (de) 1997-01-31 2000-06-21 Walter Bauer Vorrichtung zum Vorfertigen von Dachflächenelementen
US20010055523A1 (en) * 1999-11-24 2001-12-27 Henry M. Slodden Verticle lifting and moving
US20090232623A1 (en) * 2008-03-11 2009-09-17 The Mattamy Corporation Roof hoist
US11014788B1 (en) * 2019-12-10 2021-05-25 Jacob Gentile Modular crane attachment device for purlins

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Publication number Publication date
DE102022115264A1 (de) 2023-12-21

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