EP1482105A1 - Système de fixation avec une tête et un étai - Google Patents

Système de fixation avec une tête et un étai Download PDF

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Publication number
EP1482105A1
EP1482105A1 EP03011189A EP03011189A EP1482105A1 EP 1482105 A1 EP1482105 A1 EP 1482105A1 EP 03011189 A EP03011189 A EP 03011189A EP 03011189 A EP03011189 A EP 03011189A EP 1482105 A1 EP1482105 A1 EP 1482105A1
Authority
EP
European Patent Office
Prior art keywords
crosshead
head
fastening system
head plate
plate
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.)
Withdrawn
Application number
EP03011189A
Other languages
German (de)
English (en)
Inventor
Artur Schwörer
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.)
Peri GmbH
Original Assignee
Peri 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 Peri GmbH filed Critical Peri GmbH
Priority to EP03011189A priority Critical patent/EP1482105A1/fr
Publication of EP1482105A1 publication Critical patent/EP1482105A1/fr
Withdrawn legal-status Critical Current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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/483—Supporting heads

Definitions

  • the invention relates to a fastening system for a girder slab formwork, with a cross head and a building support, the Construction support has a head plate at an upper end, and wherein the Cross head is attachable to the head plate.
  • a generic fastening system is for example in the EP 0 670 945 B1.
  • Cross heads and building supports are used to support and fix Concrete formwork elements used, which on longitudinal and / or Cross beams are attached, which in turn rest on the crosshead and in their position is fixed. The cross head is again on the building support attached.
  • the crosshead is attached to the building support in the state of Technique through a ratchet mechanism using a Spring mechanism, see EP 0 670 945 B1.
  • the crosshead has one underside extension, which is inserted into the construction support and the Includes ratchet mechanism. The pawl engages when inserting the Extension automatically stops in the construction support. To solve the Latch release pins are used.
  • Such a locking mechanism must also be on the crosshead be attached, and it takes several manufacturing steps, this To install the locking mechanism on the crosshead and on the construction support.
  • the object of the present invention is a Fastening system for a prop and a crosshead to introduce that is easy to manufacture and easy to use.
  • This task is presented in a fastening system of the beginning Type solved in that the cross head has at least two tabs, that the head plate with edge sections can be pivoted into the tabs, and that a securing means is provided which is swiveled in Condition of the head plate in the tabs swivel the head plate out blocked out the tabs.
  • the attachment between the head plate and cross head is essentially done through the tabs.
  • the tabs can, for example, on the bottom of the Cross head welded or from angled down rag be shaped a base plate of the crosshead. The tabs prevent that the crosshead can be lifted away from the top plate. A horizontal shift or swivel between head plate and Crosshead is prevented by the belay device.
  • the securing means can be like one or more securing pins Screws, countersunk screws or tilt fingers in recesses or openings be formed in cross head and head plate. Extend the locking pins typically perpendicular to the crosshead and headstock contact plane when fastened.
  • the securing means can be used for securing and The easiest way to unlock the fastened state is manually.
  • the closed position can be changed by a simple relative rotation of Cross head and prop (or their head plate) can be reached.
  • the tabs on the crosshead encompass the edge sections the head plates.
  • the tabs do not need to be completely encompassed Effect edge sections, but the edge sections are inventively at least undermined.
  • the locking pins preferably connect the head plate and the crosshead at a point from the pivot point of the pivoting of the Headstock is different.
  • the invention is not only based on an application of cross heads Construction supports limited.
  • other types of Prop heads such as a claw head or drop head, instead of a cross head can be used according to the invention.
  • a preferred embodiment of the invention Fastening system provides that the crosshead on an underside, which faces away from the stanchions of the crosshead, a first level Has contact surface, and that the head plate at one end Top has a second flat contact surface.
  • the contact areas are trained to touch each other when the crosshead is on the Head plate sits on. During a relative pivoting of the head plate and crosshead can slide the two contact surfaces together. By this arrangement is always large and therefore safe Load absorption on the head plate of the construction prop.
  • the crosshead has a centering curvature on an underside which faces away from the stanchions of the crosshead. and that the head plate has a centering recess on one end-side upper side.
  • the centering curvature and the centering recess help to find a secure fit of the cross head on the head plate.
  • a horizontal displacement of the cross head on the head plate from the centered position is made more difficult.
  • the load of the beams, the formwork elements and the concrete mass can be safely diverted into the building support.
  • the Centering curvature can be arranged with play in the centering recess. This allows the relative orientation of the building support to be supported Carriers are readjusted.
  • the game also makes the relative easier Swiveling cross head and head plate, so the in and Swing out the edge sections into the tabs.
  • centering curvature and the Centering recess are each circular.
  • the each circular shape built in a horizontal sectional plane The state of the crosshead and headstock is present, allows a rotation of Cross head and head plate relative to each other at any angle.
  • the Swivel for the purpose of connecting and disconnecting cross head and the top plate is similar to that of the circular guide elements relieved and guided by a hinge.
  • the centering in the Essentially conical leads the cross head when placed on the head plate in the centered position.
  • An embodiment of the invention is particularly preferred Fastening system in which the crosshead is at least two has opposite, angled lobes, and in which the Tabs are formed as side slots in the tab.
  • the angled lobes are bent edge areas of a Base plate of the cross head.
  • the side slots preferably extend parallel to the plane of the base plate of the crosshead, so that parallel to the Base plate arranged edge sections of the head plate in the side slots can just be swung in.
  • the according to this embodiment trained tabs can without a welding process on Crosshead can be obtained, which is the manufacture of the crosshead simplified, accelerated and cheaper.
  • the rags also increase the Flexural rigidity of the base plate of the crosshead.
  • the crosshead has an approximately rectangular base plate, and that the side slots on lobes of the longer sides of the base plate are trained.
  • the opposite lobes on the longer sides the base plate are more closely adjacent than opposite lobes the short sides, so that the edge sections of the Head plate in the side slots is simplified. It is also possible to the short sides rags without side slits to stiffen the Provide cross head, which is outside the swiveling space Headstock.
  • the head plate is square, in particular square, and that the Edge sections are formed as outer corners of the head plate.
  • the square shape is built up in a horizontal plane, fixed state of cross head and head plate given.
  • the shape of the head plate is particularly simple.
  • a relative pivoting of a maximum of 90 ° is sufficient to each to achieve the desired relative position of the crosshead and the building support.
  • the Fastening system provides that the Cross head and the head plate each have at least one opening have, and that in the pivoted state of the head plate in the If the breakthrough openings overlap at least partially.
  • Locking pin such as a screw, a tilting finger, etc. can be pulled through overlapping breakthrough openings and as a simple, but effective means of protection.
  • Safety pins with associated, additional breakthrough openings be provided.
  • at least two securing devices such as locking pins in associated Breakthrough openings provided.
  • the at least one opening in the crosshead itself from a top of the crosshead, which faces the stanchions, into the Cross head tapered into it.
  • This allows the use of Countersunk screws or the like as securing means.
  • the top the crosshead i.e. is the top of the crosshead base plate even and free of surveys when using the securing means Countersunk head in the secured closed state. Carriers can then freely be placed on the crosshead.
  • a locking pin at least one opening in the crosshead kept captive.
  • the locking pin can preferably be in the securing Condition due to the base plate of the cross head and the head plate of the Reach through the support.
  • the captive locking pin is held by Gravity is held in the blocking position and can be done manually and / or by a tool for releasing the degree of freedom of pivoting be pushed up by the crosshead and headstock.
  • the captive Locking pin is always at hand.
  • the crosshead 1 shows a cross head 1 in a schematic oblique view, the as part of a fastening system of beam slab formwork according to the invention suitable is.
  • the crosshead 1 essentially comprises one Base plate 2 and several stanchions 3, 4. There are two long stanchions 3 and two short stanchions 4 are provided, each lying diagonally opposite one another.
  • the base plate 2 has an approximately rectangular shape. The viewer of Figure 1 looks at an upper side 5 of the base plate 2 and thus on the Top 6 of the crosshead 1.
  • the stanchions 3, 4 are from the top 5 the base plate 2 upwards.
  • On the long and short sides of the Base plate 2 are edge areas of base plate 2 downward angled. These angled areas are called tabs 7, 8, 9, 10 designated.
  • the tabs 7, 8 have on the long sides of the base plate 2 each have side slots 11, 12, which are parallel to the base plate 2 and in Extend towards the long sides.
  • the flaps 7, 8, 9, 10 stiffen the Base plate 2.
  • the base plate 2 also has four through openings 14, 15, 16, 17 on.
  • the breakthrough openings 14, 15, 16, 17 have a tapered Cross section in the direction from the top 5 to the bottom of the base plate 2 towards.
  • a locking pin 18 is captive in the opening 15 held. It can be moved in the opening 15 so that it extends almost inside and partially above the base plate 2 or also that it only extends inside and below the base plate 2. This can either the bottom of the base plate 2 or Top 5 of the base plate 2 is essentially flat and free of surveys be set up.
  • the head plate Construction support of the fastening system according to the invention created (cf. subsequent figures).
  • centering curvature 19 In the middle of the base plate 2 there is also a centering curvature 19 intended.
  • the centering curve 19 is on the top 5 of the Base plate 2 embossed as a recess 32; on the hidden in Figure 1
  • the underside of the base plate 2 is the centering curvature 19 as a protrusion Bulging pronounced.
  • a breakthrough opening may be provided in the middle of the centering arch 19 in a alternative embodiment.
  • FIG 2 is a schematic oblique view for the present Invention essential upper end of a building support 20 shown.
  • the building support 20 comprises a tubular body 21 and a head plate 22.
  • the head plate 22 forms the upper end of the building support 20.
  • Construction support 20 is also a plate.
  • Fig. 2 the viewer looks at an upper side 23 of the head plate 22 and thus on the top of the building support 20.
  • the tubular body 21 is on the Underside of the head plate 22 e.g. fixed by welding.
  • the head plate 22 has four small openings 24, 25, 26, 27, which for receiving securing means, such as locking pins, are provided. In the middle of the head plate 22 there is another larger opening 28 intended.
  • the opening 28 serves as a centering recess 34 to accommodate a centering curvature of a cross head.
  • Figure 3a is a schematic vertical cross section through a Cross head 30 and the upper part of a building support 31 shown, the Cross head 30 rests on the building support 31, but not connected to it or is closed.
  • the crosshead 30 largely corresponds to the crosshead of FIG Figure 1
  • the building support 31 largely corresponds to the building support of Figure 2.
  • the long sides of a base plate 2 of the crosshead 30 are parallel to two Sides of a square head plate 22 of the building support 31 aligned.
  • the Section plane of Figure 3a is in Figures 1, 2 and 3b each with "IIIa" noted.
  • Figure 3b the same arrangement of crosshead 30 and Construction support 31 shows like Figure 3a, the relative orientation of cross head 30 and prop 31 can also be seen.
  • An upper side 5 of the base plate 2 is substantially flat in order to allow the installation of beams of slab formwork in principle.
  • the top 5 has a recess 32 in the middle, which during stamping a centering arch 19 on an underside 33 of the base plate 2 arose.
  • the centering arch 19 projects into the interior of the building support 31.
  • the head plate 22 of the building support has a central one Breakthrough opening 28.
  • the central breakthrough opening 28 acts as Centering recess 34 in which the centering arch 19 with play 35 sitting.
  • the inner diameter of the centering recess 34 is therefore somewhat larger than the outer diameter of the centering arch 19 on his broad top approach.
  • a conical shape of the centering arch 19 facilitates the insertion of the centering bulge 19 in the Centering recess 34.
  • the cross head lies with a flat first contact surface 36 on the underside 33 of its base plate 2 on a second flat contact surface 37 on the Top 23 of the head plate 22.
  • the bottom 33 of the base plate 2 provides at the same time the underside of the crosshead 30.
  • the centering devices 19 secure 34 the crosshead 30 and the headstock 22 against unintended relative Horizontal shift.
  • FIG. 3a there are also two through openings 38, 39 of the Base plate 2 can be seen.
  • the breakthrough openings 38, 39 are in their upper Area that borders on the top 5 of the base plate 2, wider in Diameter than in a middle one, from the upper side 5 of the base plate 2 more distant area.
  • In one to the bottom 33 The area adjacent to the base plate 2 is the opening 38, 39 again broader than in the middle. This enables one captive holder of locking pins.
  • In the opening 38 is such a captive locking pin 18 is arranged.
  • On his The upper and lower end of the locking pin has 18 retaining edges which are in the Diameters are larger than the diameter of the Breakthrough opening 38 in its central area.
  • the breakthrough openings in other embodiments can be via their seen in axial length have any cross section, the is larger in particular on the top of the base plate than in the rest axial course. It is understood that guided in the breakthrough openings Safety devices in the connected state of the base plate and head plate are not protrude over the top of the base plate.
  • FIG. 3b shows the arrangement of FIG. 3a in a top view.
  • the Cross head 30 rests on the head plate 22 of the building support 31.
  • the base plate 2 of the crosshead 30 On all four sides of the base plate 2 of the crosshead 30 there are tabs 7, 8, 9, 10 angled.
  • the flaps 7, 8 of the long sides have side slots 11, 12, which serve as tabs on the crosshead 30.
  • Side slots 11, 12 In the unlocked shown State of cross head 30 and head plate 22 of Figure 3b are Side slots 11, 12 free, i.e. they are not penetrated by the head plate 22.
  • the base plate 2 of the crosshead 30 has four openings 38, 39, 40, 41, with a locking pin 18 in the opening 38 is held captive.
  • the head plate 22 also has four Breakthrough openings 24, 25, 26, 27.
  • the head plate 22 To connect the crosshead 30 to the construction support 31, i.e. both parts in to bring a locking position, the head plate 22 must in the direction of arrow 46 be turned clockwise. In principle, the Cross head 30 are rotated in the opposite direction when the Side slots are designed accordingly.
  • FIG. 4 a shows the arrangement of FIG. 3 a after such turning into a closed position of cross head 30 and head plate 22 in a schematic vertical section.
  • the sectional plane of Figure 4a can be seen from Figures 1, 2, and 4b as "IVa".
  • An upper edge 50 of the locking pin 18 is lower than that Top 5 of the base plate 2, so that the top 5 of the base plate 2 of the Buchkopfes 30 has no surveys and thus carrier on the Cross head 30 (i.e. on top 5 of base plate 2) can.
  • the position of the locking pin 18 is determined by gravity secured.
  • the locking pin 18 In order to remove the blockage between cross head 30 and head plate 22, can the locking pin 18 with a suitable tool or manually be pressed at the top. While the locking pin 18 above, approximately on one top stop, is held, the head plate 22 can be pivoted, for example back to the unlocked position of Fig. 3a / 3b.
  • FIG. 4b shows the arrangement of FIG. 4a in a schematic top view; Cross head 30 and the head plate 22 of the building support 31 are in a closed position.
  • the crosshead 30 still lies on the underside of its base plate 2 the top of the head plate 22 of the construction support 31. Stick through Edge portions of the head plate 22, namely corners 51 and 52, the side slots 11, 12 of the tabs 7, 8 of the base plate 2 of the crosshead 30.
  • the corners 51, 52 primarily block a relative movement of cross head 30 and Construction support 31 away from each other in a direction perpendicular to the top of the Top plate 22 or perpendicular to the underside of base plate 2.
  • a blockage of a relative movement of head plate 22 and cross head 30 in the drawing plane of Figure 4b, ie in a horizontal plane of the constructed fastening system according to the invention, is by several Facilities.
  • the crosshead 30 has the Centering curvature 19 which in the centering recess 34 in the Head plate 22 engages.
  • the ends of the side slots 11 delimit 12 shows a relative movement of the corners 51, 52, for example from corner 51 to right in Fig. 4b.
  • the locking pin 18 projects through as the third blocking means both the opening 38 of the base plate 2 and the Breakthrough opening 24 of the head plate 22.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP03011189A 2003-05-27 2003-05-27 Système de fixation avec une tête et un étai Withdrawn EP1482105A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03011189A EP1482105A1 (fr) 2003-05-27 2003-05-27 Système de fixation avec une tête et un étai

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03011189A EP1482105A1 (fr) 2003-05-27 2003-05-27 Système de fixation avec une tête et un étai

Publications (1)

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EP1482105A1 true EP1482105A1 (fr) 2004-12-01

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EP03011189A Withdrawn EP1482105A1 (fr) 2003-05-27 2003-05-27 Système de fixation avec une tête et un étai

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EP (1) EP1482105A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3228777A1 (fr) * 2016-04-08 2017-10-11 DOKA GmbH Tete de retenue destinee a etre reliee a une extremite d'un element de support pour un support de coffrage
EP3719238A1 (fr) 2019-04-03 2020-10-07 DOKA GmbH Tête de retenue, support de coffrage et coffrage de plafond

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011595A1 (fr) * 1992-11-06 1994-05-26 Peri B.V. Support comportant une tete demontable
DE19605824C1 (de) * 1996-02-16 1997-10-02 Doka Ind Gmbh Kopfverbindung für eine Rohrstütze
FR2831910A1 (fr) * 2001-11-02 2003-05-09 Jalmat Tete d'etai amovible

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011595A1 (fr) * 1992-11-06 1994-05-26 Peri B.V. Support comportant une tete demontable
DE19605824C1 (de) * 1996-02-16 1997-10-02 Doka Ind Gmbh Kopfverbindung für eine Rohrstütze
FR2831910A1 (fr) * 2001-11-02 2003-05-09 Jalmat Tete d'etai amovible

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3228777A1 (fr) * 2016-04-08 2017-10-11 DOKA GmbH Tete de retenue destinee a etre reliee a une extremite d'un element de support pour un support de coffrage
EP3719238A1 (fr) 2019-04-03 2020-10-07 DOKA GmbH Tête de retenue, support de coffrage et coffrage de plafond

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