HUE027271T2

HUE027271T2 - Clamping device and concrete formwork system having at least one clamping device

Info

Publication number: HUE027271T2
Application number: HUE10790839A
Authority: HU
Inventors: Anton Schmied
Original assignee: Doka Gmbh
Priority date: 2009-12-17
Filing date: 2010-12-14
Publication date: 2016-10-28
Also published as: DK2513388T3; KR20130006591A; WO2011082987A1; EP2513388B1; EP2513388A1; PL2513388T3; UA111057C2; DE102009054857A1

Description

Ä invention relates fo a sàgnpfog devfee for clamping together of at least two- concrets formwork émrnm a^s well as to & concretefot&work sysiemlpiftj|: isuck s clamping àevies,

Mihe Soli of oopcrete cps^etíoa, usually formwork elements M& erected with respect to mè another and anchored to one another to -witeiiâÂè:t^iiere|#pess«ce for fMng ^li or the lice to he concreted. PaniemarchaOenges can be seen here in the area of end i engineering, sinceon the other sldeof the fonnwork dements, that is, towards the earth or towards sheet piling, mostly confined space conditions prevail. The setting up of formworks god attaching of the anchor coH*ponenls is thus crucially made more difficult SMe.ofthe.art A device, with which both adjacent formwork elements may he clamped to one another and an anchor which has a loop ai ils end may he clamped, can he seen front United States 4 ISi 452,.

German 10 2007 004 226 B3 relates to a locking device for an anchor rod: of an anchor syÉsm of a tfoherete wad formwork which has a screw nut dement for through-screwing of the anchor rod mé a dome plate which can he attached rising attachment means to a rear side of a form work element of the concrete Wat formwork and has a spherically designed plate region with an opening, in which the screw nut element is arranged, in the opening with radial play:. !forthemfores United Stales appneatlon 20iS/ddd7736 ts known widen shows a system for securing formwork pa.ne.is.

Japanese ;S$CM17846 ill is known as a forther document.

The object of the invention is to pi ovidé a çlâfipig <ievice-Which is improved with regard £¢) áte security and/or nsanageabtlity for clamping together of at least two concrete i>rmv>Ork elements: lying ae^tp one aimtheras well as a formwork haying: such a elántping: device, iá whiçlî concrete formwork elemepfo arc arranged m two sides to be largely parallel for íheepösirnctiop of walls*

The solution to this object is effected firstly by the damping device described in claim L

Therefore the latter has at least one mounting for an anchor nut into which an anchor rod provided with a thread can bo screwed. This facilitates in a novel -maimer atfoffohng from only one side. When, setting, up of usually severalconcreie formwork dements, they are: tff icaîly" iSSiitbIêd-iÂilîf to form a composite and Introduced into a degression. for eyatnple using a crane on tie spot. In the area of the civil engineering structure. liven If the Pppsite composite is poáfoöned, anchoring from one aide may he effected by the ciampittg device of the invention In advantageous manner-to that the anchor rod: povided with a thread is pushed ifopithe processing side initially through the fonnwork element on tfiîs side, through tit* jÉi&flfliWHk elements and finally is guided info the clamping device on the opposite side. Since in this application, an anchor nut or so-called super-plate is alreadyattached to the damping device, the anchor rod may he screwed Into the latter without separate working steps being necessary on this side. In particular with respect, to a clamping device according: to thestafo of the art, with which an anchor can be iked, which is provided with loops m is ends, there results the advantage that the operation and anchoring is taclfoated. mom one single side.

The clamping device of the invention can be used in particularly diverse manner in that it may be used firstly wit lout an anchor nut as a “normal'’ clamping; device At the same timearrangemems are. made on the clamping device in the form of mountings for the anchor nut to widen them around an anchor put in order to facilitate particularly secure anchoring from only one side in the situation described above. Hence, the handling is secure and simple to the effect that dlf&ent types of clamping devices do not have fo he snppiîedunnecessariiy. Rather, in the event that an anchor is to be attached thereto, only the anchor nut has to be supplemented. Furthermore, the mounting provided according to the invention on the clamping device is designed such that it is suitable for anchor nuts of^diflereni thicknesses and/or diameters. Furthermore, both anchor nuts in the form of super-plates ami essentially two-pan anchor mils pan bo attached which consist of a somalled mobbing patt in tbc form of a thosily circular plate and a thread part attached thereto for example ikem joint Regarding the anchor swd which can foe screwed into the thread, it should also: hi mentioned that ft. may foe eonstmmed both in one piece with integrated thread and in two or more pieces w|ft a thread gart initial iy made separately and attached sat er to the actual anchor rod For example the anchor rod may be that object which is described in German Utility Model ®) 200? 015 833 of me applicant. The anchor rods used may Jmw» fm example a diameter in the mnp from I S mm t# 20 mm. Adapted thereto, 'Wáom anchor nuts are conventional,

Preferred developments of the clamping device of the Invention are described in the further claims. f or the mounting of the anchor nut, it is preferable if ft isconstructed to be posftive-iockmg. This facilitates in advantageous manner a certain play of the anchor nut «I respect; to the clamping device, which is faWmrable tor certain applications, as described; more precisely below. furthermore, paMcutaf iy good iexibiity with regard to the attachment of various anchor nuts may thus foe guaranteed. In particular ft Is preferable not to provide a compositive mourning. The preferred pasftivmiockmg mounting may be constructed, for example by a releasable widening, ffor example in the form of discs placed on pins and secured against: axial displacement. The securing described against axial movement may be effected for example by suitable pins or so-called iinch pins Írben the anchor tod with its thread is screwed into rite int ernai thread of the anchor may particularly for comparatively high. friction Ip the ;tforea.d which cannot always be excluded due to the dirt prevailing at the building site. It is ensured that the rotation of the anchor not: the anchor rod to be screwed in is limited, for this purpose* it is prefemfoie for the clamping: device of the invention If Ithas at: least: one: rotation: stop to limit rotation of the anchor nut.

In similar manner it is advantageous ιο limit the screwingdn Movement of the anchor rod, which may foe guaranteed by a preferably provided anchor stop. Hence, when screwing tu the anchor from: the one side, on reaching; the stop in fie: clamping device op the opposite aide,ft is “feSf that the anchor is screwed in sumeiently far

Furthermore, there are advantages: when dtp &&%$$$$ devise èf the invention baa at least one centering shoulder for fixing the :p&$iÜ®ß of the clamping device with respect to a concrete formwork dement. Hence, the potation of the clumping device of the Invention is determined at two concrete formwork elements to hé damped to ope another, evenbetbre they are clamped to: one another He clamping devisé may tips at the same time be fixed with respect to the concrete formwork elements it advantageous manner such that a gap which can be used for unavoidable displacement, or the hie ia retained. For illustration it should be supplemented: that the clamping device of the invention may be used in particular in concrete fis»wc«te have a frame constmetlon. for example of alnrninlum profiles, to guarantee: certain stade advantages and in Which the openings are designed for passing through the anchors iâ theffame and are conical. Theconical nature facilitates a certalnílexifeiiity when introducing the anchors, which:1s retained: by the deactihed delning: of the; position of the clamping device with respect to the concrete formwork dements, The movabflity of the anchor described during displacement Or at «gdlàf inchhátíonapárticularly of&cs the advamap: that the anchor i s not stressed by: bending moments. The positional relationship between the: centering shoulder and any claws for clamping concrete formwork elements with one another, rnay be matched in patficuiarto the fiamé profiles of the concrete for mwkklc elements sucé that the clamping device of the invention can be used in ail alignments rotated in each case by Uífiíor clamping concrete formwork elements. This means in ad vantageous manner likewise that in the event that a certain alignment of the clamping device proves unfavourable at. two concrete .formwork elements arranged next, to one another, because ihroughomehormg is not possible, lor example doe to existing felufitrcemeng the clamping device has to be rotted only by 1 ICf, the centering shoulder is introduced into the opening of the “other: concrete formwork element and in this alignment, clamping together' of the co«er##'.fömiwor:fc is facilitated without problems.

The movabiity of the anchor rod described is achieved In particular by the preferred measure, according to which the Internal diameter of the centering shoulder Is greater than one thread diameter. In other words, the anchor rod screwed into the thread of an anchor Mi may fiuthermore be moved within, the centering shoulder within certain limits so that displacement between Opposite concrete formwork: eiemenisnmy be compensated. This; is •favoured in that the mounting provided to hold an: anchor nut at the damping device of the kyentfoB is designed such thai lîfecbilates certain· nmvetnents oMe anchor nut with respect to the damping device, for example in fie range of a fow millimetres up to áfew omlrsme$. liven though tie clamping device of the invemlon, ms described, already reveals k advantages with Âê :eti|em€ït^. «αώοτ üté Is the form of tie st least one mourning, it is preferable to combine tie damping device of the invention with at feast one angter nut. lb this context it has proved to be $$>$»íagéósÉ fort he M#df wrt> fo provide k with at least one bore and-'or recess, for example on the edp of am essetklaliy circular anchor nut, Ihr mouthing on the clamping device of the invention. Éotb tbc bores and recesses stay he designed In advantageous manner so that certain movements of tie anchor nut with fespeet to the clamping device are possible, but unintentional release is prevented. In tils context as anchor nut of super-plate ha ving one or more lateral recesses or eui-outs is; to be regarded as an independeht lnnovation described heremwhkh also reveals ks advantages without the features described above and below, but may be combined therewith. Fufebermore,: It may be advantageous for static reasons to guide a rib running on foe outer edge of the anchor nut or super-plate around one; of more oufeôuti». fos already indicated, there ate adivantages for cenafo déviations of the positioning of two concrete formwork elements with respect to one another with regard to foe angular position and/or other displacement If an anchor to be screwed in can be screwed into an anchor nut mounted on the clamping device beyond a certain angular ;range.: Ibis may be guaranteed in advantageous manner for example; in that fie anchor nut las a mounting part and a thread part which is mounted preferably bice a joint and preferably like a universal joint on the mounting pari, f he mounting part may be for example a preferably approximately circular plate which can be átfedheti to the clamping: device; of the invention. fbe solution to the afeovevmentfoued object Is effected further by a concrete formwork system which has at least; one clamping device in one of thé efebOdltnents: described below or above. Wkltin foefe&mework of the concrete formwork system, fertler at least two concrete formwork elements are provided which have at least one opening for passing through art anchor rod which is formed in a tame of a: concrete formwork element. âs described, foe; possibility of througli-anchoning it a frame is statically advantageous.

Fadfeeonore, there are advantages In this context to design at least one opening to be conical to äpilfaie certain Inclinations ofm anchor. The conical namfe is: preferably provided so that the opening: is widened to wards the enter side of the formwork element, that is, away Seym the concrete to bo added.

For sealing at the concrete formwork element, it te·ftdth^nolte f$p¥eifo-le advantageous to provide the concrete: formwork spfeth of the invention with at least one guide sleeve which can be received at least: partly id.an. opening of the formwork element , and/or in the clamping device. Receiving in the clamping device could be provided for example such that the guide sleeve: has m inner cavity which is largely aligned with a thread of the anchor nut so that an: anchorrod which Is introduced is guided to the thread,. At the same time the external diameter of the guide sleeve may be smaller than, the internal diameter of an opening in the Rime ofa formwork profile, in partfelaribr scomcal openly of its widened region and/or of an. internal diameter of a centering shoulder. Hence, movements of the guide sleeve together with the anchor nut with respect to tbe concrete fontwork element and the clamping device provided thereon in a certain position are admitted.

An. embodiment of thé invention shown by way of example in the figures is illustrate#!* motp detail below.

Finne d, shows a perspective reptesentadoh of the clamping device of the invention; and:

Figure 2 slows a sectional r epresehtation of a profile of a concrete fonnwdtk element having a clatnping device attached thereto and a guide sleeve

As, can fee seers: in Figure 1, the clamping device of the invention firstly has daws 30, of which in Fiprc i only the let-hand íme can be seen. However the two claws can he displaced with respect to one another and enpge with popetiems provided at the en#· in suitable grooves: of fie bamdof oonorelefctiwork elements (nor showny id addition to the dispiaceahfiity with respect to one another, the claws 30 ean:be clamped % a threaded rod 33 which U 0®$mâ bf à clamp-screw grip 34 à tb^mb^êmmt émm mi copperafos with a semlmyliMrfoat Muî4bfatmé m «fc* lefWkæà Recording to Figure $ pkw 3 D m ths! ®3m*âk fpmmû· elements srra&géi ttaBfeetittMâ sau also be; <jtiffiapa£to one another· via their frame.

The clamping device of the invention 10 is characterised by mountings 12 for an anchor nut 14,.: lithe embodiment shown, the nmuniings 12 are feigned m the form of two «hats 1 6 which are attached to a plate 2$ of the clamping device;.: In a region ofithe shafts IS remote tom the plate 28, in each easeradial bores are prendded, into which short pns 36 are ihtrodueed M the embodiment shown so as to limit the axial movemeti of particular discs IS. Boweven it goes without· saving: that these monotmgs may also bedestgoed ditfommly. For example the plus 3 6 could1 be replaced by Inch gins. In each case tike anchor nut 14,. which in the embodiment sho wn cocsletss of a mounting part 22 arid a thread .pufid provided thereon lice a universal joint, mag he mounted to he positivfoloshing of the clamping device of the invention. This mounting is Sexih'ie within certain limits in radiai direction, for example In that (non-detectabie) cut-outs are designed on the edge of the mounting part 22 in radial direction and/or in peripheral direction: to he latter than the shaft s 16 of the mountings 12. The same radial movaftilhf mag he achieved in a further embodiment in that the anchor nut, in particular its mounting: part 22,: has bores win ch: have a greater diameter than the shafts 16, Bores may be provided, for example in a larger embodiment of the anchor nut, whereas for a Smaller embodiment of foe anchor nut lateral cut-outs may be formed.:

Ih the embodiment shown, the thread part 24 of the anchor mu 14 is forther provided with lateral wings which limit: a r'ctarf movement of the thread part 24 of the anchor nut 14 in cooperation with the rotation stop 26, In the emhodlment shown, the rotation; stop: 26 Is attached to the plate 28 of the damping device and extends at an, angle in the region in which the wings of the thread part may theoretically rotate. If consequently an anchor is screwed into the thread part, mlaion of the thread part 24 is limited so that the anchor Is moved axially and finally abuts âpInstÉe so-called anchor stop 26. The embodiment shown is fonts an essemiallyfim-har steel bent in a a-shape which limits the scmw-In movement of the anchor with an end cover plate aligned largely vertically to the axial direction of the anchor rod.

Figure 2 shows the cooperation of the damping devise of the invention with & frame 3S of a concrete .fômwoffe element and a gaide sleeve 4Θ, for example made of plastic. Firstly, the d ame of the concrete formwork elemem has an opening 42which is widened conically towards the outer side, Secondly, the clamping device 1Ö, In the embodiment shown on the plate 28, has a centering shoulder 44 directed to the concrete Iormwork elemem, the external whldÉ^áspistö íSediMtete'öfiié-c^áPi 42. Bdwever. the interns) diameter is greater than tie usual diameter of an anchor rod or of the Interna) thread of the thread part 2-1 so that eefein movements within, the centering shoulder 44 are fcliitated. This applies partlcularlf also in the presence: of a: guide and sealing sleeve 40, the internal diameter of which is adapted to the internal thread of the thread part 24, and the externa! diameter of wMch In some regions is somewhat peater hut in the exemplary embodiment shown, can fee arranged wihtiiis region: in the mounting párt 22 of the anchor nut. For the positional relationships described, the anchor útit together with the púdé sleeve 4(1 can he: moved with respect to the opening: 42 and the damping device feed thereto by means of the centering shoulder 44 In order to compensate angtdgr inclinations and dispacemem.

The situation slow® in Ibguce 2 may Odour ihr example when using the anchor aeoofdmg to German. Model 30-2001015 833. In this case, the sleeve 40 is preferably made of metal, in particular steel, and is paricularly' suitable m absorh axial forces The smaller diameter of the conical section of the anchor acts to be sealing against the section of the opening 42 on the side of the shell surface and is supported in sealing manner on the sleeve 40.

In conventional anchor· rods, the latter may be screwed into the clamping devices described herein within the framework. Of the installation on a first so-called rearward concrete fbrnnvork element composite. Subsequently, distance-holding jacket tubes, whiebare mostly made of plastic ormetabSbre material, may be pushed over, -âffèinfbrcement may be used as a whole or may be made on she. Sohsequetstfy, the second so-called tomfemworfe composite is positioned, wherein the anchors are threaded Into bushings and loose anchor nuts are screwed on. Provided an adequÄ access facility exists, both formwork composites and the reinfsreement may be positioned and oaly subs^uentiy the anchors are attached to thej:aoket:nfbes described.

Claims

FBSYírŐSZFEKEZEÍ, and Legal »A FESZITŐSZEEKEZETTEL WITH BEIONZSALUIÔ iENDiZlR CLAIMS L tensioning (1 (¾ fegalÉfeÉ Mt eg ¥ pás Moler dtófexett befomssafoző element: column ~ szefosziiésére which foszitőszerkezet least one tartószsrelvénnye has (12) a borgonyattya for receiving (14)," you Anchor rod,% of which, with the help of the Imrgonyaoyal (14) beess stall hook, is equipped with an anchoring tool (30), which can be used to assemble the elements of the stacking element.

2. The tensioning device according to claim 1, characterized in that at least one of the tongs (12) is at least one.

3. Tensile device according to claim L or 2 characterized in mm 1, at least on an anchor of the auxiliary structure "a". (14) with a rotation of the batamlb rotation,

4. The; The tensile structure according to any one of the preceding claims, characterized in that the winding device is provided with an anchor block (20) which delimits at least one screw-in movement of the Imrgohp.

5. One of the previous claim templates is a text message. .pas; Ihdfeära IftpiriMtó has a whisker wit (44).

The fossil structure according to claim 5, characterized in that it is threaded. that the inner diameter of the centering projection (44) is greater than the diameter of the inner thread of the borgouyauya (14). % One of the foregoing claims is a phosphorus derivative having a fatty acid (14), I. A?. The anvil structure according to claim 1, wherein the anchor nut (14) is at least one of the at least one pallet assembly (12)! and whether or not she has an elephant. 9, The phosphine structures according to claim 2 or 2, characterized in that the anchor nut (14) has a tufted portion (22) and a threaded portion (24) which is held in a hinged manner, preferably spherical, in the support portion (22). .

10. Ifofoning system that takes care of:;% i> | sont #. at least one of the elements of the seer is one of the elements of at least one of the elements of at least one betemrsaluze »having at least one of the arrows (421) formed in the wheel (38) y of the insert element in the yoke (421). characterized in that at least one arrowhead (42) is tapered, 12. The dipping system according to claim 10 or claim 1, comprising itself, further comprises a guide bush (40), at least partially received by the concrete element. arrows (42) and / or constrictor Π0).