DK157207B - Formwork for curved surfaces, round structures, and like constructions - Google Patents
Formwork for curved surfaces, round structures, and like constructions Download PDFInfo
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- DK157207B DK157207B DK442684A DK442684A DK157207B DK 157207 B DK157207 B DK 157207B DK 442684 A DK442684 A DK 442684A DK 442684 A DK442684 A DK 442684A DK 157207 B DK157207 B DK 157207B
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Opfindelsen angâr en forskalling til runde bygværker, hvilken forskalling har en i sin krumning indstillelig forskal-lingsbeklædning og dragere til underst0tning af forskallingsbeklæd-ningen samt i deres længde indstillelige stangled, der i afstand fra 5 forskallingsbeklædningen indgriber med dragerne og tilsammen danner en stangkæde, idet hvert stangled over en egen ledforbindelse er hængslet pâ et til en drager fastgjort forbindelsesstykke og over dette er forbundet med det i stangkæden f0lgende stangled, hvorhos stangleddenes indbyrdes vinkelstilling kan ændres ved indstilling af 10 de enkelte stangleds længde. Sâdanne forskallingers b0jelige for-skallingsbeklædninger bestâr ofte af træ, men kan ogsâ bestâ af stâl. Sædvanligvis anvendes der til runde bygværker af béton eller til andre buede vægge, lofter eller flader en ydre og en indre forskallingsbeklædning, mellem hvilke betonen udst0bes. Det er 15 pnskeligt, at mellemrummet mellem de to forskallingsbeklædninger er fri for sammenspændingsorganer, forankringsstænger eller lignende foranstaltninger. Disse danner nemlig ikke blot svage steder i betonen, men er navnlig uheldige, dersom der f.eks. skal fremstilles en vandbeholder. I dette tilfælde skal man nemlig senere lukke de 20 huiler tæt, som dannes ved udtagningen af sammenspændingsorganerne.BACKGROUND OF THE INVENTION The present invention relates to a formwork for round edifices, which has a formwork adjustable for its curvature and supports for supporting the formwork lining and their longitudinally adjustable bar joints, which engage the kites at a distance from the formwork lining and together form a rod. each rod joint over its own linkage is hinged to a connecting piece attached to a carrier and above this is connected to the rod joint following in the rod chain, whereby the angular position of the rod joints can be changed by adjusting the length of the individual rod joints. The flexible formwork linings of such formwork often consist of wood, but may also consist of steel. Usually, for round constructions of concrete or for other curved walls, ceilings or surfaces, an outer and an inner formwork cladding between which the concrete is cast are used. It is desirable that the gap between the two formwork linings be free of clamping means, anchorage rods or similar measures. These are not only weak spots in the concrete, but are especially unfortunate if, for example, must be made a water container. In this case, it is necessary to close the 20 cavities that are formed at the time of removal of the clamping means.
Ved forskallinger, hvor forskallingsbeklædningerne holdes pâ plads ved hjælp af gennemgâende sammenspændingsorganer, er det desuden en ulempe, at den inderste og den yderste forskallingsbeklædnings længdedragere skal anbringes temmeligt nojagtigt over for hinanden, 25 hvilket besværliggpr opstillingen af forskallingen. For at undgà disse ulemper er det kendt at opspænde sâdanne forskallinger ved hjælp af sâkaldte stangkæder.In addition, for formwork, where the formwork linings are held in place by means of continuous clamping means, it is a disadvantage that the inner and outer formwork length carriers must be positioned fairly precisely against each other, which makes the arrangement of the formwork difficult. To avoid these disadvantages, it is known to tighten such formwork by means of so-called bar chains.
Sâledes kendes fra tysk frémiæggelsesskrift nr. 28 05 612 en stangkæde, der tjener til opspænding af forskallinger. Stangleddenes 30 indbyrdes vinkelstilling ændres her ikke ved indstilling af de enkelte stangleds længde, men ved hjælp af opspændingsorganer, der hvert udgores af to skrueelementer. Disse opspændingsorganer er komplicerede at betjene, idet de to skrueelementer skal spændes hver for sig. Derefter er det ved den endelige indstilling af vinklen 35 mellem hver to efter hinanden fplgende stangled npdvendigt at losne det ene skrueelement og spænde det andet, indtil den pnskede vinkelstilling er opnâet. Da en sâdan stangkæde bestâr af et stort antal stangled, er opspændingsarbejdet og vinkelindstillingen ved denne konstruktion et besværligt og tidskrævende arbejde. Endvidere 2Thus, from German Foreign Writing Publication No. 28 05 612, a rod chain is known which serves to clamp down formwork. Here, the angular position of the rod joints 30 is not changed by adjusting the length of the individual rod joints, but by means of clamping means, each made of two screw elements. These clamping members are complicated to operate as the two screw elements must be tightened separately. Then, at the final setting of the angle 35 between each two consecutive bars, it is necessary to loosen one screw element and tighten the other until the desired angular position is reached. Since such a rod chain consists of a large number of rod joints, the clamping and angular adjustment of this construction is a difficult and time-consuming task. Furthermore 2
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vanskeliggeres dette opspændings- og vinkelindstillingsarbejde yderligere ved, at det nærmest forskallingsdskket liggende skrue-element er vanskeligt tilgængeligt. En yderligere ulempe er, at denne kendte stangkæde ved hver samling af to efter hinanden f0l-5 gende stangled sammen med de to tilhdrende skrueelementer har ikke mindre end fera drejeforbindelser raed deraf f0lgende fare for sl0r og dermed en undjagtig indstilling og dârlig opspænding. En yderligere ulempe er, at de enkelte stangled ikke er indstillelige i deres længde, hvilket betyder, at længden af den samlede stangkæde kun kan 10 ændres i trin ved udtagning eller indsætning af stangled i kæden.this clamping and angular adjustment work is further complicated by the fact that the screw element closest to the formwork floor is difficult to access. A further disadvantage is that this known rod chain at each joint of two consecutive rod joints together with the two associated screw elements has no less than fera pivot joints resulting in the danger of drag and thus an improper adjustment and poor tension. A further disadvantage is that the individual rod links are not adjustable in their length, which means that the length of the total rod chain can only be changed in steps by removal or insertion of the rod link into the chain.
Der kan sâledes ikke opnâs en ndjagtig trinlps indstilling af stangkædens længde.Thus, an inaccurate step-step adjustment of the length of the bar chain cannot be obtained.
Fra det tyske offentliggprelsesskrift nr. 21 40 638 kendes yderligere en forskalling med en stangkæde, hvis stangled kan 15 indstilles i deres vinkelstilling i forhold til hinanden. Heller ikke ved denne stangkæde er stangleddene indstillelige i deres længde, og ændring af hele stangkædens længde kan sâledes ogsâ her kun ske ved, at der fjernes eller tilfojes et eller flere stangled.From German Publication No. 21 40 638 there is further known a formwork with a rod chain whose rod joints can be adjusted in their angular position relative to each other. Also not at this bar chain, the bar joints are adjustable in their length, and so the entire length of the bar chain can thus also only be done by removing or adding one or more bar links.
Der kan sâledes heller ikke med denne stangkæde opnâs en trinlps 20 indstilling af hele stangkædens længde.Thus, even with this bar chain, a step 20 adjustment of the entire length of the bar chain cannot be achieved.
Fra det tyske fremlæggelsesskrift nr. 24 26 708 kendes endvidere en forskalling med en stangkæde, hvis enkelte stangled er indstillelige i deres længde. Denne kendte stangkæde har imidlertid den ulempe, at der til stabilisering af de over for hinanden an-25 bragte forskallingsvægge skal anvendes forskallingsforankringer, der strækker sig fra den ene forskallingsvæg til den anden og altsâ som allerede beskrevet medfprer tilsvarende huiler^gennem den færdigr stdbte væg eller som elementer, der er tilbdjelige til at korrodere, forbliver siddende i den færdigstpbte væg. Dette er, som allerede 30 nævnt, især udnsket ved stdbte, runde beholdere af béton.Furthermore, from German Patent Specification No. 24 26 708 there is known a formwork with a rod chain whose individual rod joints are adjustable in their length. However, this known rod chain has the disadvantage that for stabilizing the facing formwork walls, formwork anchors extending from one formwork wall to the other and thus, as already described, correspond to corresponding cushions through the finished molded wall. or as corrosion-prone elements remain in the finished wall. This is, as already mentioned 30, especially evoked by molded, round containers of beton.
.Formâlet med den foreliggende. opfindelse er derfor at tilvejebringe en forskalling af den indledningsvis nævnte art, ved hvilken forskallingsforankringer, som senere skal udtages af den færdigstdbte væg eller blive siddende i denne og dermed danne svage 35 steder- i den færdigstdbte væg, er unddvendige, og der alligevel" opnâs en tilstrækkelig stabilitet af forskallingen, og ved hvilken aile krav med hensyn til overholdelse af krumning og afstand mellem forskallingsvæggene er opfyldt. Endvidere skal forskallingsdækket ikke som ved de allerede beskrevne kendte konstruktioner fdrst 3The purpose of the present. The invention is therefore to provide a formwork of the kind mentioned at the outset, in which formwork anchors, which must later be taken out of the finished wall or remain in it and thus form weak places in the finished wall, are necessary and yet "achieved". a sufficient stability of the formwork and in which all requirements regarding compliance with curvature and spacing between the formwork walls are met, and the formwork deck shall not, as in the prior art designs already described, 3
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anbringes, efter at stangkæden er indstillet til den 0nskede krum-ning, men i stedet skal forskallingselementerne med afstivningsdra-gere i forvejen være forsynet med forskallingsdæk og straks kunne indstmes til den 0nskede krumning pâ byggepladsen.be placed after the bar chain is set to the desired curvature, but instead the formwork elements with bracing carriers must already be fitted with formwork decks and be immediately adjustable to the desired curvature at the construction site.
5 Denne opgave l0ses if0lge opfindelsen ved hjælp af en forskalling med de i krav l's kendetegnende de! angivne ejendomme-ligheder. Ved opfprelsen af forskallingen skaï forskallingselemen-terne med forskallingsdæk og de derpâ monterede afstivningsdragere og de pâ afstivningsdragerne siddende forbindelsesstykker blot 10 opstilles ved siden af hinanden, hvorefter stangleddene indsættes og fastgpres i optagelsesdelene og justeres i deres længde, indtil den korrekte stilling er opnâet, hvorpâ stangleddene fikseres i deres sâledes pâ enkel mâde indstillede vinkelstilling i forhold til henholdsvis forbindelsesstykket og til hinanden. Opfprelsen af en 15 forskalling pâ denne mâde er langt mindre besværlig og tidskrævende end ved anvendelsen af de hidtil kendte stangkæder, hvis ledvinkel-blokeringsorganer, navnlig nâr det drejer sig om konkavt buede forskallingsvægge, forudsætter en forudgâende separat samling af stangkæden og vinkelîndstilling af aile dennes stangled og f0rst 20 derefter ti11ader anbringelsen af afstivningsdragerne og derefter af forskallingselementerne pâ disse.5 This object is solved according to the invention by means of a formwork with the characteristics of claim 1! stated property similarities. When constructing the formwork, the formwork elements with formwork decks and the stiffening supports mounted thereon and the connecting pieces on the stiffening supports shall be placed 10 next to each other, after which the rod joints will be inserted and clamped in the upholstery parts and adjusted to their length until the correct position is reached. the rod joints are fixed in their angular position in a simple manner relative to the connecting piece and to each other, respectively. The construction of a formwork in this way is far less cumbersome and time-consuming than the use of the known bar chains, whose articulated angle blocking means, in particular in the case of concave curved formwork walls, require a prior separate assembly of the bar chain and angle setting. first and then 20 allow the placement of the stiffening supports and then of the formwork elements thereon.
Ved hjælp af de i krav 2 angivne foranstaltninger opnâs en enkel udformning af henholdsvis midlerne til indstilling af hvert stangleds længde og disses anbringelse i forbindelsesstykkerne.By means of the measures specified in claim 2, a simple design of the means for adjusting the length of each rod joint and their placement in the connecting pieces are obtained, respectively.
25 Underkravene angiver hensigtsmæssige og praktiske udforel- sesformer for elementerne i stangkæden til forskallingen if0lge opfindelsen.The subclaims specify suitable and practical embodiments of the elements in the bar chain for the formwork according to the invention.
I det fplgende forklares opfindelsen under henvisning til de pâ tegningen anskueliggjorte udf0relseseksempler. Pâ tegningen viser 30 i forskellige mâlestoksforhold:The invention is explained below with reference to the illustrative embodiments illustrated in the drawing. The drawing shows 30 in different scale conditions:
Fig. 1 et sidebillede af en del af en forskalling med stangkæder ifplge opfindelsen til runde bygværker, fig. 2 et sidebillede af et ledvinkelblokeringsorgan, fig. 3 i delbillede en plantegning af et forbindelsesorgan, 35 ledvinkelblokeringsorganget og tilslutningsenderne af stangkædens tilhprende stangled i forsterret mâ-lestok, fig. 4 et sidebillede af det i fig. 3 viste set i retnîngen B i fig. 3,FIG. 1 is a side view of a portion of a formwork with bar chains according to the invention for round structures; FIG. 2 is a side view of a joint angle locking means; FIG. Fig. 3 is a plan view of a connecting member, the link angle locking member and the connecting ends of the bar chain's adjoining bar joint in an enlarged scale; 4 is a side view of the embodiment of FIG. 3 in the direction B in FIG. 3
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4 fig. 5 i skematisk forra en de! af en plantegning af en forskalling til en krum væg eller et rundt byg-værk, hvor hvert forbindelsesorgan mellent for-skaï lingsdragerne og stangleddene selv danner en del 5 af de til indstilling af forskellige vinkelstillinger tjenende 1edvi nkelblokeri ngsorganer, fig. 6 i stprre mâlestok koblingen mellem forbindelsesor-ganet og stangleddet ved en forskalling som den i fig. 5 viste, hvor der til fiksering af stangleddene 10 i deres vinkelstilling i forhold til forbindelsesor- ganet er udformet en mod et arrêteringsorgan ven-dende fortanding pà stangleddet, fig. 7 et sidebillede af den i fig. 6 viste stangledkon-struktion, 15 fig. 8 et billede af det med en fortanding forsynede ar rêter ingsorgan if0lge fig. 6 og 7 set fra enden, fig. 9 et sidebillede af arrêteringsorganet f0r dettes ind-greb med fortandingen pâ forbindelsesorganet, fig. 10 i stprre mâlestok anbringelsen af arreteringsorga-20 nets fortanding og forbindelsesorganets fortanding samt endvidere spillerummet mellem spærreorganets hui og den gennem dette forl0bende til stangleddet hprende boltdel, fig. 11 et sidebillede og 25 fig. 12 en plantegning delvis i snit af en ændret udf0- sesform, ved hvilken vinkelstillingen af stangleddene i forhold til forbindelsesorganet kan indstilles ved hjælp af som tandstænger udformede arreteringsorganer og en mellem disse anbragt kile, 30 fig. 13 en udferelsesform, ved hvilken to ud i et stykke forbundne tandstænger samtidigt indgriber med et forbindelsesorgans to stangled, fig. 14 en til fig. 13 svarende udfdrel sesform-, ved hvilken parallelle i afstand fra hinanden anbragte 35 kamme i stedet for tandstænger indgriber i passen- de tandmellemrum pâ endefladerne af stangleddene, og hvor den boit, der er forsynet med kammene, kan forskydes aksialt ved hjælp af et gevind, fig. 15 et sidebillede og 54 FIG. 5 in schematic last one they! Fig. 1 is a plan view of a formwork for a curved wall or a circular structure, where each connecting means between the intersecting piles and the rod joints themselves forms part 5 of the angle locking means used for adjusting different angular positions. 6, on a larger scale, the coupling between the connecting member and the rod joint at a formwork such as that in FIG. 5, in which, for fixing the rod joints 10 in their angular position with respect to the connecting member, a tooth facing the arresting member is formed on the rod joint; FIG. 7 is a side view of the embodiment of FIG. 6, FIG. 8 is a view of the toothed rectifier according to FIG. 6 and 7 from the end, FIG. 9 is a side view of the arresting member prior to its engagement with the tooth of the connector; FIG. Fig. 10 is a larger scale view of the arrangement of the tooth of the arresting member and the tooth of the connecting member as well as the clearance between the cover of the locking member and the bolted portion extending through the rod to the articulated joint; 11 is a side view and FIG. Fig. 12 is a plan view, partly in section, of a modified embodiment, in which the angular position of the rod joints relative to the connecting means can be adjusted by means of tooth-shaped arresting means and a wedge arranged between them. 13 shows an embodiment in which two interconnected toothed rods simultaneously engage with two connecting rods of a connecting member; FIG. 14 a. FIG. 13 corresponding embodiment, in which parallel spaced apart parallel 35 rams instead of tooth rods engage in appropriate tooth gaps on the end faces of the rod joints and wherein the ridge provided with the rams can be displaced axially by a thread. FIG. 15 a side view and 5
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fig. 16 en plantegning delvis i snit af en udfprelsesform, ved hvilken spændekiler, der tjener som arreterings-organer, indgriber med passende fremspring pâ kiler-ne, 5 fig. 17 en plantegning af en udfprelsesform, ved hvilken trækstænger, der krydser hinanden, ved deres ene ende indgriber med stangleddene ved deres over for forbindelsesorganerne beliggende drejepunkter og med den anden ende indgriber med forbindel-10 sesorganerne i afstand fra stangleddenes dreje punkter, fig. 18 et sidebillede og fig. 19 en plantegning delvis i snit af en udfprelsesform, ved hvilken de drejelige stangled har cirkelbuefor-15 mede endeflader, mellem hvilken en kile med til- svarende kontur kan indsættes.FIG. 16 is a plan view, partly in section, of an embodiment in which clamping wedges which serve as arresting means engage with appropriate projections on the wedges; FIG. Fig. 17 is a plan view of an embodiment in which pulling rods intersecting engage at one end with the rod joints at their pivot points facing the connecting members and with the other end engaging the connecting members at a distance from the pivot points of the rod joints; 18 is a side view and FIG. 19 is a plan view partly in section of an embodiment in which the pivotal rod joints have circular arc-shaped end faces, between which a wedge with a corresponding contour can be inserted.
Ved de i det fplgende beskrevne udfprelsesformer er dele, der stemmer overens med hinanden, selv ved udfprelser af disse dele, der er noget forskellige fra hinanden, betegnede med samme henvîs-20 ningsbetegnelser, og i tilfælde af at den ene eller den anden del ikke er nævnt særskilt ved den ene eller den anden udfprelsesform, gælder for denne del, hvad der i forbindelse med en anden udfprel-sesform allerede er beskrevet.In the embodiments described below, parts which correspond to each other, even to those parts which are somewhat different from one another, are designated by the same reference numerals, and in the case that one or the other part does not is mentioned separately in one or the other mode of expression, this part applies to what has already been described in connection with another mode of expression.
En i sin helhed med 1 betegnet forskalling til krumme 25 flader, vægge, lofter, runde bygværker eller lignende konstruktioner af béton, har en bdjelig indvendig forskallingsbeklædning 2 samt en ligeledes bpjelig ydre forskallingsbeklædning 3. Mellem disse to forskallingsbeklædninger 2 og 3 er betonmdrtel, der senere indfyl-des, vist i et kort afsnit og betegnet med 4. Som det ses i fig. 1 30 eller 5, understpttes den indvendige forskallingsbeklædning 2 pà i afstand fra hinanden anbragte længdedragere 5. Disse længdedragere understpttes igen pâ en i sin helhed med 6 betegnet stangkæde. Denne har et antal i deres længde 1 indstillelige men ipvrigt stive af lange stangled 7. De enkelte stangled 7, der har i det væsentlige 35 lige længdeakser, er svarende til krumningen af den indvendige forskallingsbeklædning 2 anbragte i vinkelstilling i forhold til hinanden og i forhold til et forbindelsesstykke 8, der beskrives senere.One formally referred to as 1 for curved 25 surfaces, walls, ceilings, round structures or similar structures of concrete, has a considerable internal formwork cladding 2 as well as a suitable external formwork cladding 3. Between these two formwork claddings 2 and 3, there are concrete coatings. is subsequently filled in, shown in a short section and denoted by 4. As seen in FIG. 1 or 30, the inner formwork cladding 2 is supported at a distance from each other by longitudinal supports 5. These longitudinal supports are again supported by a rod chain, in its entirety, 6. This has a number of longitudinally adjustable but otherwise rigid of long rod joints 7. Their individual rod joints 7, having substantially 35 equal longitudinal axes, correspond to the curvature of the inner formwork cladding 2 disposed at an angle to each other and relative to each other. to a connector 8 described later.
Ifplge opfindelsen er de efter hinanden fplgende stangled 7 6According to the invention, the consecutive rod joints are 7 6
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i stangkæden 6 forbundne med hinanden over pà længdedragerne 5 anbragte forbindelsesstykker 8, og hvert stangled kan ved hjælp af et i sin helhed med 9 betegnet ledvinkelblokeringsorgan fikseres i sin vinkelstilling i forhold til forbindelsesstykket 8. Som det navnlig 5 ses i fig. 1,3,4,6,16 og 17, har hvert stangled 7 en med indvendige gevind 10 forsynet spændebpsning 11. Hvert stangled 7 har ved hver af sine ender 12 og 13 en dertil passende gevindbolt 14.connecting pieces 8 arranged in the rod chain 6 connected to each other on the longitudinal supports 5, and each rod joint can be fixed in its angular position relative to the connecting piece 8 by means of a joint referred to as 9 in its entirety with respect to the connecting piece 8. As can be seen in FIG. 1,3,4,6,16 and 17, each rod joint 7 has an internal thread 10 provided with tensioning lug 11. Each rod joint 7 has at each of its ends 12 and 13 a corresponding threaded bolt 14.
Pâ denne gevindbolt 14 er anbragt et tilslutningshoved 15, der ses særligt tydeligt i fig. 3 og 4, og som har form som et 10 regelmæssigt prisme med rektangulære sideflader 16 og en rektangulær endeflade 17. Hvert tilslutningshoved 15 har et hul 18, der flugter med huiler i forbindelsesstykket 8's til si utningsf langer 19· og 20 (fig. 4). Tilslutningshovederne 15 og dermed stangleddene 7 er forbundne med forbindelsesstykket 8's tilsiutningsflanger 19 og 20 15 ved hjælp af forbindelsesbolte 21. Forbindelsesstykket 8 har desuden en med til si utningsf langerne 19 og 20 forburrdet fastgprelsesbpjl'e 22, der er tilpasset efter profilet 23 af de almindeligt anvendte eksisterende længdedragere 5.Attached to this threaded bolt 14 is a connecting head 15, which can be seen particularly clearly in FIG. 3 and 4, and having the shape of a regular prism with rectangular side faces 16 and a rectangular end surface 17. Each connecting head 15 has a hole 18 that aligns with the creases in the connecting members 8 of the connector 19 (20) and 20 (Fig. 4). ). The connecting heads 15, and hence the rod joints 7, are connected to the connecting flanges 19 and 20 15 of the connecting piece 8 by means of connecting bolts 21. The connecting piece 8 also has a locking tabs 19 and 20 which are fastened to the fastening pads 22 adapted to the profile 23 of the ordinary used existing longitudinal supports 5.
Forbindelsesstykket 8's allerede nævnte tilslutningsflanger 20 19 og 20 danner et i sin helhed med 25 betegnet optagelsesomrâde for de i stangkæden 6 mod hinanden vendende tilslutningshoveder 15. Som det navnlig ses i fig. 3 og 4, er omridsformen af dette optagelsesomrâde 25 i det væsentlige U-formet i det midterste omrâde. Iovrigt passer tilslutningshovederne 15 til âbningen mellem de parailelt med 25 hinanden anbragte tilslutningsflanger 19 og 20.The connection flanges 20 19 and 20 of the connection piece 8 already mentioned form a receiving area, designated in its entirety by 25, for the connection heads 15. In the rod chain 6 facing each other, as seen in particular in FIG. 3 and 4, the outline shape of this recording area 25 is substantially U-shaped in the middle region. Moreover, the connection heads 15 correspond to the opening between the parallel flanges 19 and 20 arranged parallel to each other.
Det i fig. 2 i sidebillede i stprre mâlestok viste ledvinkelblokeringsorgan 9 ses i fig.. 3. i p-lantegning og i fig. 4 fra enden. Dette ledvinkelblokeringsorgan er udformet som en set fra siden i det væsentlige ü-formet justeringsbojle. Denne har pâ sin 30 U-bund 27 en tap 28, til hvilken der i den tilhorende tilslutnings-flange 20 er anbragt et hul 29. Den dverste tilsiutningsflange 20 er forlænget et stykke ud forbi den nederste tilsiutningsflange 19 i retningen mod de to stangled, hvilket navnlig ses i fig. 4 og 3. Pâ ledvinkelblokeringsorganet 9's U-grene 30 er anbragte to indstil-35 lings- og skruer 31 og 32. U-grenene 30 rager i ledvinkelblokeringsorganet 9's brugsstilling ind i omrâdet ved tilslutningshovedet I5's sideflader 16 (fig. 4). Ved passende indstilling af disse indstillingsskruer 31 og 32 kan man justere det pâgældende tilslutningshoved 15 til en ensket vinkelstilling i forbindelsesstykket 8 7The FIG. 2 in the side view in larger scale, the joint angle blocking means 9 shown in FIG. 3. in the p-drawing and in FIG. 4 from the end. This joint angle locking means is designed as a side view of substantially ü-shaped adjusting bracket. This one has on its 30 U-bottom 27 a pin 28 to which a hole 29. is provided in the associated connection flange 20. The lowest connection flange 20 is extended slightly beyond the lower connection flange 19 in the direction towards the two rod joints. which is particularly seen in FIG. 4 and 3. Two adjusting and screws 31 and 32. On the U-branches 30 of the articulation locking means 9 are arranged in the position of use of the articulated locking means 9 in the area of the side faces 16 of the connecting head I5 (Fig. 4). By appropriately adjusting these adjusting screws 31 and 32, the respective connection head 15 can be adjusted to a single angular position in the connector 8 7
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og fiksere det i denne stilling. Denne vinkel ses navnlig i fig. 3's venstre si de og er betegnet med A. Da den udvendige diameter D af den indvendige forskallingsbeklædning 2 (fig. 1) er stor i forhold til længden 1 af de enkelte stangled, er ogsâ vinklen a forholdsvis 5 lille, sâledes at der er rigelig plads til ledvinkelblokeringsorga-net 9 og dettes indstillingsskruer 31,32. Herved kan de forekommende kraftforhold ved forbindelsesstykket 8 henholdsvis ledvin-kelblokeringsoragnet 9 beherskes. Pâ grund af den i hullet 29 indfdrte tap 28 ligger ledblokeringsorganet 9 fast mod sideforskyd-10 ning, men kan uden yderligere foranstaltninger praktisk taget automatisk dreje sig til den til stangleddet 7's stilling passende stilling, sâledes som det navnlig ses i fig. 3. Ved denne udfprelse er det desuden en fordel, at der ved en forskalling, som i det væsentlige allerede er opstillet, uden vanskeligheder kan foretages 15 efterjusteringer af enkelte stangled 7's vinkelstilling. Endvidere kan de enkelte rigler 7's længde 1 ændres ved drejning af spænde-bpsningerne 11. I det visteudfprelseseksempel er længden 1 (fig. 1) malt mellem midterpunkterne af tilslutningsboltene 21.and fix it in this position. This angle is particularly seen in FIG. 3 of the left side and are indicated by A. Since the outside diameter D of the inner formwork cladding 2 (Fig. 1) is large relative to the length 1 of the individual rod joints, the angle a is also 5 small, so that there is ample space for the joint angle blocking means 9 and its adjusting screws 31,32. Hereby, the force conditions present at the connection piece 8 and the joint angle blocking magnet 9 can be controlled. Due to the pin 28 inserted in the hole 29, the link blocking means 9 is fixed against the lateral displacement, but can, without further measures, practically automatically rotate to the position suitable for the position of the rod joint 7, as seen in particular in FIG. 3. In this embodiment, it is further advantageous that for a formwork, which is already substantially erected, 15 adjustments can be made without difficulty to the angular position of a single rod joint 7. Furthermore, the length 1 of the individual rails 7 can be changed by turning the clamp openings 11. In the illustrated example, the length 1 (Fig. 1) is painted between the midpoints of the connecting bolts 21.
Ledvinkelblokeringsorganet 9 har en set fra siden U-formet 20 forstærkningsbpjle 33, der udefra griber om dele af ledblokeringsorganet 9's U-grene 30 og om hele dets U-bund 27.The joint angle blocking means 9 has a side view U-shaped 20 reinforcing bars 33 which engage from the outside about portions of the U-branches 30 of the articulation block 9 and all of its U-bottom 27.
Det ses navnlig i fig. 3, at i det mindste tilslutnings-flangen 20 af forbindelsesstykket 8 ved sin yderste ende 34, d.v.s. i ledblokeringsorganet 9's drejeomrâde, har et aftrappet, d.v.s.It is particularly seen in FIG. 3, at least the connecting flange 20 of the connecting piece 8 at its outer end 34, i.e. in the pivot locking means 9 of the pivotal region has a step, i.e.
25 smallere sideprofil, sâledes at der er plads til ledblokeringsorga-nets U-grene 30. En sâdan i retningen mod riglen 7 udragende ende 34 er ikke nddvendig ved den nederste ti1 siutningsflange 19.25 narrower side profile so that space is provided for the U-branches of the linkage means 30. Such an end 34 extending in the direction towards the bolt 7 is not necessary at the lower sealing flange 19.
I fig. 1 ses ved den yderste forskallingsbeklædning 3 yderligere længdedragere 105, der fastholdes ved hjælp af et i dets 30 helhed med 40 betegnet trækbând. Det ses, at dette trækbând bestâr af stangled 7, der kan indstilles i deres længde L, samt af forbin-delsesstykker 8', der er anbragte pâ længdedragerne 105. Disse forbindelsesstykker 8' har ligeledes huiler 18 og deri indsatte tilslutningsbolte 21, og ledblokeringsorganer 9 og huiler 29 til 35 optagelse af tappe 28 er ikke npdvendige her og er derfor ikke indtegnet. Det vil dog ses, at de indledningsvis nærmere beskrevne stangled 7 ogsâ kan anvendes som dele 107 af trækbàndet 40 i for-bindelse med dettes forbindelsesstykker 8. Udformningen af forskal-lingen l's stangled 7 og forbindelsesstykker 8 ved den indvendigeIn FIG. 1, at the outer formwork liner 3 additional longitudinal supports 105 are seen, which are retained by means of a drawbag in its entirety with 40. It can be seen that this drawbar consists of rod joints 7, which can be adjusted in their length L, as well as connectors 8 'mounted on longitudinal supports 105. These couplings 8' also have hollow 18 and connecting bolts 21 and linkage means inserted therein. 9 and crying 29 to 35 recording of pin 28 are not necessary here and are therefore not plotted. However, it will be seen that the initially described rod joints 7 can also be used as portions 107 of the drawbar 40 in conjunction with its connecting pieces 8. The design of the joints 7's joints 7 and connecting pieces 8 at the interior
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s f * forskallingsbeklædning 2 har derfor den fordel, at sâdanne dele 7 og 8 ogsâ kan anvendes til dannelsen af et trækbând 40. Derved foren-kles lagerforingen af forskallingsdele til runde bygværker, og anvendeligheden af disse dele fordges. Om nodvendigt kan de til 5 stangkæden 6 eller trækbândet 40 anvendte stangled 7 eller 107 udformes ens og være indstillede i forskellig længde 1 henholdsvis L, mèn om nodvendigt kan der ogsâ anvendes med forskellig grund-længde udformede stangled 7 eller 107 til forskellige (indvendige) stangkæder 6 henholdsvis trækbând 40.Therefore, the formwork lining 2 has the advantage that such parts 7 and 8 can also be used for the formation of a drawstring 40. This simplifies the storage of formwork parts for round structures and the utility of these parts is required. If necessary, the bar joints 7 or 107 used for the 5 bar chain 6 or the drawbar 40 can be designed in the same way and can be set to different lengths 1 and L, respectively, but if necessary, different bar lengths 7 or 107 can be used for different (internal) bar chains 6 and drawbars 40, respectively.
10 Fig. 5-19 viser en forskalling 1 til krumme vægge eller lignende bygningselementer med en bpjelig, fortrinsvis konveks, indvendig forskallingsbeklædning 2 og eventuelt ogsâ en ydre for-skallingsbeklædning 3, der igen har i afstand fra hinanden anbragte dragere 5, der understdttes af et af en stangkæde 6 dannet trækbând, 15 hvor stangleddene 7 i stangkæden 6 kan indstilles og fikseres i deres længde og deres indbyrdes vinkelstilling, og hvor der pâ dragerne 5 er anbragt forbindelsesstykker 8, pâ hvilke stangleddene 7's drejepunkter findes i form af tilslutningsbolte 21. I disse udfprelseseksempler er hvert forbindelsesstykke 8 selv en del af 20 ledvinkeîblokeringsorganet til fiksering af stangleddene i deres indbyrdes vinkelstillinger eller indeholder i det mindste en del af dette ledblokeringsorgan.FIG. Figures 5-19 show a formwork 1 for curved walls or similar building elements having a pliable, preferably convex, interior formwork liner 2 and optionally also an outer formwork liner 3, which in turn has spaced supports 5 supported by one of a rod chain 6 formed tensioning belt 15, in which the rod joints 7 in the rod chain 6 can be adjusted and fixed in their length and their angular position, and where on the supports 5 are provided connecting pieces 8, at which the pivot points 7 are in the form of connecting bolts 21. for example, each connector 8 is itself a part of the link articulation block means for fixing the rod joints in their angular positions or contains at least part of that articulation block means.
Ved udforelsesformen ifolge fig. 6-10 tjener en fortanding 35 til fiksering af stangleddene 7 i deres vinkelstilling i forhold 25 til forbindelsesstykket 8, idet der dog ogsâ i stedet for en sâdan fortanding 35 kan anvendes en anden kobling, der kan sammenfdjes i forskellige vinkelstillinger. I fig. 9 og 10 er der anbragt tænder 36 eller lignende fremspring pâ forbindelsesstykket 8 henholdsvis pâ dettes tilslutningsflanger 19 og 20, medens der pâ stangleddet 7 er 30 anbragt tilsvarende tandmellemrum 37 eller lignende udsparinger.In the embodiment according to FIG. 6-10 serve a toothing 35 for fixing the rod joints 7 in their angular position relative to the connecting piece 8, however, instead of such a toothing 35, another coupling can be used which can be joined in different angular positions. In FIG. 9 and 10, teeth 36 or similar projections are provided on the connecting piece 8 and on its connecting flanges 19 and 20 respectively, while corresponding tooth gaps 37 or similar recesses are arranged on the rod joint 7.
Det ses især i fig. 6, at fortandingen 35 er udformet pâ endefladerne af forbindelsesstykket 8 henholdsvis af dettes flanger 19 og 20 og ligger i en cirkelbue om den som drejelig forbindel se mellem stangleddet 7 og forbindelsesstykket 8 tjenende tilslut-35 ningsbolt 21, og i fig. 6 og 7 ses, at stangleddet 7 foruden den tilhorende gevindbolt 14 har et ved hjælp af en mdtrik 38 aksialt forskydelig arreteringsorgan 39 som en del af ledvinkelblokerings-organet med en konkav runding og deri anbragte tænder, der passer sammen med forbindel sesstykket 8's tænder. I fig. 6 er vist en 9It is particularly seen in FIG. 6, that the toothing 35 is formed on the end faces of the connecting piece 8 and its flanges 19 and 20 respectively, and lies in a circular arc about the connecting bolt 21 which serves as a pivotal joint 7 and the connecting piece 8, and in FIG. 6 and 7, it is seen that the rod joint 7, in addition to the associated threaded bolt 14, has an axially displaceable arresting member 39 by means of a nut 38 as part of the joint angle locking means with a concave rounding and teeth arranged therein that match the teeth of the connecting piece 8. In FIG. 6 is shown a 9
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vinkelstilling, hvor vinklen mellem stangleddet og forbindelses-stykkets flanger er en forholdsvis stump vinkel, men med stiplede linier er de mulige endestillinger af arreteringsorganet 38 antydet passende til tilsvarende vinkelstillinger af en med en konveks eller 5 en konkav forskallingsbeklædning indgribende stangkæde. Ogsâ i dette udfprelseseksempel har forbindelsesstykket 8 som vist i fig. 7 to paraile!Te tilsiutningsflanger 19 og 20, af hvilke i det mindste den ene kan hâve en fortanding 35 pâ sin endeflade. Tilslutningshovedet 15 af stangleddet 7's gevindbolt 14 passer ind mellem tilslutnings-10 flangerne 19 og 20 og er fastgjort drejeligt ved hjælp af tværbolten eller tilslutningsbolten 21. Pâ denne til stangleddet 7 hprende gevindbolt 14 kan vinkelblokeringsorganet 39 forskydes aksialt og kan understpttes og bringes i indgreb med fortandingerne 35 ved hjælp af den pâ den bort fra forbindelsesstykket 8 vendende side 15 anbragte mptrik 38.angular position, where the angle between the rod joint and the flange of the connecting piece is a relatively blunt angle, but with dotted lines, the possible end positions of the fixing means 38 are indicated suitably for corresponding angular positions of a rod chain engaging a convex or 5 concave formwork lining. Also in this embodiment, the connector 8 has as shown in FIG. 7 two parallel flanges 19 and 20, at least one of which can have a tooth 35 on its end surface. The connecting head 15 of the rod joint 14 of the threaded joint 7 fits between the connecting flanges 19 and 20 and is pivotally fastened by means of the cross bolt or connecting bolt 21. On this threaded bolt 14, which can be displaced axially by the rod joint 7, can be displaced axially and can be supported and engaged. the teeth 35 by means of the socket 38 located on the side 15 facing away from the connecting piece 8.
Medens fig. 6 viser arreteringsstillingen med i hinanden indgribende tænder, ses i fig. 7, at mptrikken 38 kan forskydes sâ langt bort fra den midterste spændebpsning 11, at tænderne 36 og fortandingen 35's tandmel1emrum 37 er ude af indgreb med hinanden. I 20 denne i fig. 7 viste stilling er det sâledes muligt pâ enkel mâde at indstilie en pnsket vinkelstilling mellem stangleddet og ti1 siutningsf langerne. Derefter skrues mptrikken 38 atter i retning mod forbindelsesstykket og spændes, hvorved fortandingerne kommer til indgreb.While FIG. 6 shows the arresting position with interlocking teeth, as seen in FIG. 7, that the socket 38 can be displaced so far away from the middle clamping aperture 11 that the teeth 36 and the tooth space 37 of the tooth 35 are out of engagement with one another. In the one shown in FIG. 7, it is thus possible in a simple way to adjust a desired angular position between the rod joint and the sealing flanges. Then, the screw 38 is screwed in the direction of the connector again and tightened, thereby engaging the teeth.
25 I fig. 7 ses desuden, at arreteringsorganet 39 har et U-formet tværsnît, hvis U-bund 41 har et hui 42, som gevindbolten 14 fpres igennem, og hvis U-grene 43, som det fremgâr af fig. 6 og 9, har konkave endeflader, hvor i det mindste den ene af U-grenene 43 og i det viste udfprelseseksempel begge U-grenene bærer modtænderne.In FIG. 7, it is further seen that the fixing means 39 has a U-shaped cross-section, the U-base 41 having a housing 42 through which the threaded bolt 14 is threaded and whose U-branches 43, as can be seen in FIG. 6 and 9, have concave end faces where at least one of the U-branches 43 and in the illustrated embodiment both U-branches carry the receivers.
30 I dette udfprelseseksempel har sâledes bâde forbindelsesstykket 8's to tilslutningsflanger 19 og 20 og arreteringsorganet 39's to U-grene 43 til hinanden passende fortandinger eller eventuelt andre deformeringer, der passer ind i hinanden.Thus, in this embodiment, both of the two connecting flanges 19 and 20 of the connecting piece 8 and the two U-branches 43 of the fixing means 39 have suitable intersections or possibly other deformations that fit together.
Da arreteringsorganet 38 ved hjælp af dets hul 42 er lejret 35 pâ gevindbolten 14, er det drejeligt, sâledes at det ogsâ kan drejes 180°, hvorved det atter nâr ind i en koblings- og arreteringsposi-tion. U-grenene 43 passer i afstand og i deres fortandinger sammen med de to flanger 19 og 20 af forbindelsesstykket 8 i begge dreje-stillingerne.Since the retaining means 38 is secured by means of its hole 42 on the threaded bolt 14, it is rotatable so that it can also be rotated 180 °, whereby it again enters a coupling and retention position. The U-branches 43 fit in distance and in their teeth with the two flanges 19 and 20 of the connecting piece 8 in both pivot positions.
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1010
For trods fortandingerne at opnâ en indstilling i trin, der er mindre end en tanddeling, er hullet 42 i arreteringsorganget 39's U-bund 41 forskudt 1/4 af en tanddeling i forhold til et gennem midten af en midterste tand 44 forlpbende længdemidterplan 45. Det 5 ses tydeligt i fig. 10, at midten 46 af hullet er forskudt 1/4 af en tanddeling i forhold til det gennem spidsen af en midterste tand 44 forlobende længdemidterplan 45. Ved en drejning pâ 180° af arrete-ringsorganet 39 bringes dettes tænder fra den med fuldt optrukne linier viste stilling til den med stiplede linier viste stilling, 10 sàledes at der alene ved denne foranstaltning kan opnâs indstil- lingsvinkler i trin svarende til en halv tanddeling.In order to achieve a setting in steps smaller than a tooth pitch, despite the teeth, the hole 42 in the U-bottom 41 of the fixing member 39 is displaced 1/4 of a tooth pitch relative to a longitudinal median plane 45 extending through the center of a center tooth 44. 5 is clearly seen in FIG. 10, that the center 46 of the hole is displaced 1/4 of a tooth pitch relative to the longitudinal median plane 45 extending through the apex of a middle tooth 44. At a rotation of 180 ° of the scraper 39, its teeth are brought from the fully drawn lines. position to the position shown in dotted lines, 10 such that only by this measure adjustment angles can be obtained in steps corresponding to half a tooth pitch.
I fig. 10 ses desuden, at hullet 42 i arreteringsorganet 39's U-bund 41 optager bolten 14 med et spillerum, idet diameteren af dette hui 42 er mindst det halve af bredden af en tanddeling 15 stprre end diameteren af bolten 14. Arreteringsorganet 39 kan sàledes forskydes et tilsvarende stykke mod siden, sàledes at det, nâr tandspidserne af arreteringsorganets og forbindelsesorganets tænder steder mod hinanden, alligevel er muligt at bringe disse tænder i indgreb med hinanden ved hjælp af den nævnte sidèværtsfor-20 skydning. Ved kombinationen af de foran beskrevne foranstaltninger kan der med et forholdsvis lille spillerum mellem bolten 14 og hullet 42 opnâs en trinlps vinkelindstilling. Dersom bolten 14's spillerum i hullet 42 svarede til tanddelingen, ville der alene ved denne foranstaltning ligeledes kunne foretages en trinlos indstil-25 ling af forskellige vinkler. - · Tænderne og tandmellemrummene er i tværsnit tilnærmelsesvis ligesidede trekanter, medens de ved udfprelseseksempler, der be-skrîves senere, er trapezer.In FIG. 10, it is further seen that the hole 42 in the U-bottom 41 of the arresting member 39 accommodates the bolt 14 with a clearance, the diameter of this housing 42 being at least half the width of a tooth portion 15 larger than the diameter of the bolt 14. The arresting member 39 can thus be displaced. correspondingly to the side so that when the tooth tips of the teeth of the arresting member and the connecting member are placed against each other, it is nevertheless possible to engage these teeth by means of said lateral host displacement. By the combination of the measures described above, with a relatively small clearance between the bolt 14 and the hole 42, a stepwise angle adjustment can be obtained. If the clearance of the bolt 14 in the hole 42 corresponded to the tooth pitch, only by this measure could a stepless adjustment of different angles be made. - The teeth and spacers are approximately equilateral triangles in cross-section, whereas in the case examples described later, they are trapezoidal.
I udfprelseseksemplerne ifplge fig. 11-16, 18 og 19 er der 30 pâ forbindelsesstykket 8 anbragt et som ledvinkelblokeringsorgan med de to i forhold til forbindelsesstykket 8 drejelige stangled ind-gribende og pâ tværs af stangleddene 7 og tilnærmelsesvis vinkelret pâ forskallingsbeklædningen 2 forskydelig arreterings- og/eller klemmeelement, der ved friktionsindgreb og/eller formsluttende 35 indgreb indgriber med stangleddene 7's endeflader eller endefladerne af disses gevindbolte 14.In the embodiment examples according to fig. 11-16, 18 and 19, 30 is arranged on the connecting piece 8 as a joint angle locking means with the two pivotable joints engaging and transverse to the connecting joints 7 relative to the connecting piece 8 and approximately perpendicular to the formwork cladding 2, displaceable arresting and / or clamping members. engaging with the end faces of the rod joints 7 or the end faces of their threaded bolts 14 by frictional engagement and / or form-fitting engagement.
Ved det i fig. 11 og 12 viste udfprelseseksempel er der til indgreb med tænder 36 - i dette tilfælde med trapezformet tværsnit -pâ endefladen af stangleddene 7 som arreteringselementer og dele af 11In the embodiment shown in FIG. 11 and 12, for example, for teeth 36, in this case, with trapezoidal cross-section, on the end surface of the rod joints 7, as fixing elements and parts of 11
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ledvinkelblokeringsorganet og til indstilling af forskellige vin-kelstillinger mellem stangleddet 7 og forbindelsesstykket 8 henholdsvis mellem stangleddene 7 anbragt tilnærmelsesvis vinkelret pâ forskallingsbeklædningen 2 henholdsvis pâ den her ikke viste læng-5 dedrager 5 forskydelige tandstænger 47 pâ forbindelsesstykket 8. Som arreteringselementer anvendes her to tandstænger 47, der med deres fortandinger vender bort fra hinanden og fortrinsvis ved hjælp af selvhæmmende spindeler eller skruer 48 kan forskydes frem og tilbage mellem flangerne 19 og 20 og herunder er i indgreb med stangleddene 10 7's tænder 36. Det vil forstâs, at skruerne 48, nâr de drejes, ved hjælp af indvendige gevind 49 i tandstængerne 47, forskyder disse aksialt i forhold til skruerne 48, hvilket pâ grund af fortandingen medfprer en tilsvarende drejning af stangleddene 7. Dermed er en tri ni es indstilling af vilkàrlige vinkelstillinger af stangleddene 15 og forbindelsesstykkerne i forhold til hinanden og dermed af rig-lerne i forhold til hinanden mulig. Da der findes to parai!elle skruer 48, kan vinklerne ogsâ indstilles usymmetrisk.The joint angle locking means and for adjusting different angular positions between the rod joint 7 and the connecting piece 8 respectively between the rod joints 7 arranged approximately perpendicular to the formwork cladding 2 and on the longitudinal 5 not shown, 5 displaceable tooth rods 47 are used here on two connecting rods 47. which with their teeth turn away from each other and preferably can be displaced back and forth between the flanges 19 and 20 by means of self-retaining spindles or screws 48 and are in engagement with the teeth 36 of the rod joints 10 7, it will be understood that the screws 48 when they are rotated, by means of internal threads 49, in the rods 47, axially displacing them relative to the screws 48, which, due to the toothing, results in a corresponding rotation of the rod joints 7. Thus, a tri-ness adjustment of any angular positions of the rod joints 15 and the connecting pieces in relation to each other and thus d of the lines relative to each other possible. Since there are two parallel screws 48, the angles can also be set asymmetrically.
Til fiksering af arreteringsorganerne 39 eller arreterings-elementerne 47 ved de allerede beskrevne udferelseseksempler samt 20 ogsâ ved udferelseseksempler, der beskrives i det fdlgende, anvendes med skràflader henholdsvis gevind forsynede fastgdrelseselementer, der samtidig eliminerer drejeboltene eller tilslutningsboltene 21's . spillerum.For fixing the fixing means 39 or the fixing elements 47 by the previously described embodiment examples and also 20 by the example examples described below, threaded fasteners or threaded fasteners are used, respectively, which simultaneously eliminate the pivot bolts or the connecting bolts 21. game room.
Ved udferelseseksemplet ifplge fig. 6-10 kan den som aksialt 25 anlæg for det U-formede arreteringsorgan 39 tjenende metrik 38 spændes i arreteringsstillingen, indstil drejebolten 21's spillerum i forbindelsesstykket 8 er elimineret. Derved opnâs en betydelig stabilisering af hele stangkæden mod de under udstebningen voksende trykkræfter. Samtidig fâs et ekstra formsluttende indgreb ved denne 30 drejebolt 21.In the embodiment according to FIG. 6-10, the metric 38 serving as the axial 25 abutment for the U-shaped arresting member 39 can be tightened in the arresting position, until the clearance of the pivot pin 21 in the connector 8 is eliminated. Thereby, a considerable stabilization of the entire rod chain is achieved against the compressive forces which grow during extinction. At the same time, an extra form-fitting engagement is provided at this pivot bolt 21.
Til eliminering af drejebolten 21's spillerum ved anvende!-sen af to forskydelige tandstænger 47 er der mellem disse tandstænger anbragt en forskydelig kile 50, der trykker tandstængerne mod fortandingerne. I fig. 11 sker forskydningen af denne kile ved hjælp 35 af en med en ti1 siutningsflange 20 indgribende skrue 51, med hvilken kilen kan trækkes dybere ind i sit sæde og fastkiles, eller med hvilken den ogsâ kan forskydes ud af sit kilesæde. De to tandstænger i fig. 11 har passende skrâ anlægsflader 52 for denne kile 50.To eliminate the clearance of the pivot pin 21 by using two displaceable tooth rods 47, a displaceable wedge 50 is provided between these tooth rods, which press the tooth rods against the teeth. In FIG. 11, this wedge is displaced by a screw 51 engaging with a sealing flange 20 with which the wedge can be pulled deeper into its seat and wedged, or by which it can also be displaced from its wedge seat. The two tooth rods in FIG. 11 has suitably inclined abutment surfaces 52 for this wedge 50.
Ved det i fig. 13 viste udferelseseksempel er de to 12In the embodiment shown in FIG. 13 of the embodiment shown are the two 12
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tandstænger 47 forbundne ud i et stykke med hinanden og kan forsky-des frem og tilbage til indstilling og fiksering af de i tandindgreb med tandstængerne stâende endeflader og fortandinger pâ de to drejeligt med et forbindelsesstykke 8 indgribende stangled 7. Her 5 sker der ved drejningen af skruen 48 over det indvendige gevind 49 en samtidig og synkron drejning af begge stangleddene 7. Denne udfdrelsesform har ingen midler til eliminering af tilsîutningsbol-ten 21's spillerum, og denne udfprelsesform vælges derfor fortrins-vis, dersom der skal opstilles en forskalling til stdbning af et 10 hvælvet loft eller lignende, hvor der optræder mindre stpbetryk.tooth rods 47 connected integrally and can be moved back and forth for adjusting and fixing the end faces and teeth of the two pivotally engaging teeth with the connecting rod 8 engaging rod joint 7. Here 5, the rotation of screw 48 over internal thread 49 provides simultaneous and synchronous rotation of both rod joints 7. This embodiment has no means of eliminating the clearance of the connecting bolt 21, and this embodiment is therefore preferably selected if a formwork is to be formed to support a 10 vaulted ceiling or the like where less molding pressure occurs.
Den i fig. 14 viste udfdrelsesform har stor lighed med udforelsesformen ifdlge fig. 13. Udfprelsesformen ifolge fig. 14 har en boit 54, der ved hjælp af et gevind 53 kan forskydes aksialt ved drejning og har i afstand fra hinanden anbragte kamme 55, der passer 15 ind i tandmelleinrummene mellem tænderne 36 pâ stangleddene 7's endeflader og drejer stangleddene 7 ved aksial forskydning af bolten 54. Ogsâ denne udfprelsesform er velegnet til stebning af en hvael-ving. Det ses, at bolten 54 ved sin bort fra fastgorelsesgabet 22 af forbindelsesstykket 8 vendende ende har en tværboring 56, i hvilken 20 et værktdj kan indsættes til drejning af denne boit 54.The FIG. 14 shows great similarity to the embodiment according to FIG. 13. The embodiment according to FIG. 14 has a boot 54 which can be displaced axially by a screw 53 by rotation and has spaced ridges 55 which fit 15 into the tooth spacer spaces between the teeth 36 on the end faces of the rod joints 7 and rotate the rod joints 7 by axial displacement of the bolt. 54. This embodiment is also suitable for casting a vault. It is seen that the bolt 54, at its away from the fastening gap 22 of the connecting piece 8, has a transverse bore 56 in which 20 a tool die can be inserted for turning this boot 54.
Ved det i fig. 15 og 16 viste udfdrelseseksempel er til -slutningsflangerne 19 og 20 udfort med stærkt foregede dimensioner.In the embodiment shown in FIG. 15 and 16, the connecting flanges 19 and 20 are made with strongly foregrounded dimensions.
Derved kan stangleddene 7 udformes med fremspring 57 eller lignende tværsnitsforegelser pâ deres ind mellem flangerne 19,20 indgribende 25 tilslutningshoveder 15, og flangerne 19 og 20 udformes. med,skrât mod fremspringene 57 rettede længdeslidser 58 til optagelse af spænde-kiler 59 som arreteringsorganer til eliminering af drejebolten 21's slor. De to med et stangled indgribende kiler 59 er anbragte med deres tværsnit vendende skrât mod· hinanden og kan til indstilling af 30 forskellige indbyrdes vinkelstillinger mellem stangleddet 7 og forbindelsesstykket 8 gribe forskelligt dybt ned i deres længdeslidser 58. Dersom den ene af to kiler 59, der indgriber med det samme fremspring 57 pâ et stangled 7 er fort dyb ned i sin længde-slids 58, kan den anden kile pâ grund af den derved forârsagede 35 drejning af spindelen kun slâs et tilsvarende mindre stykke ned i sin længdeslids.Thereby, the rod joints 7 can be formed with projections 57 or similar cross-sectional joints on their inset between the flanges 19,20 engaging 25 connecting heads 15, and the flanges 19 and 20 are formed. longitudinally extending slots 58 for receiving clamping wedges 59 as arresting means for eliminating the swivel bolt 21. The two wedge-engaging wedges 59 are disposed with their cross-sections inclined towards each other, and for adjusting 30 different angular positions between the rod joint 7 and the connecting piece 8 can engage different depths in their longitudinal slots 58. If one of two wedges 59, which engages with the same projection 57 on a rod joint 7 is deep down into its longitudinal slot 58, the second wedge can, due to the resulting rotation of the spindle, only be struck a correspondingly smaller distance into its longitudinal slot.
Fig. 17 viser et udfdrelseseksempel, ved hvilket hvert stangled 7 ved sine to drejepunkter er i indgreb med den ene ende af en som ledvinkelblokeringsorgan tjenende trækstang 60, der ved sin 13FIG. 17 shows an exemplary embodiment in which each rod joint 7 at its two pivot points engages one end of a drawbar 60 serving as a joint angle locking means, which at its 13
DK 157207 BDK 157207 B
anden ende er i indgreb med et naboforbindelsesstykke 8 i afstand fra stangleddet 7's andet drejepunkt henholdsvis dets tilslutnings-bolt 21. Der er sâledes for hvert stangled 7 mellem de af dette stangled forbundne forbindelsesstykker 8 anbragt to trækstænger 60, 5 der krydser hinanden. Forbindelsesstykket 8's fastgprelsesgab 22, der griber om drageren 5's sidevægge, griber om drageren over et stykke, som er stprre end afstanden mellem stangleddet 7's drejepunkt eller boit 21 og trækstangen 60's indgrebspunkt 61 og inde-holder fortrinsvis dette indgrebspunkt. Fastgprelsesgabet 22 er i 10 dette tilfælde udformet med en passende bredde.the other end engages a neighboring connecting piece 8 at a distance from the second pivot point of the connecting rod 7 or its connecting bolt 21. Thus, for each connecting rod 7, between the connecting pieces 8 connected by this connecting rod 8 are intersected. The attachment gap 22 of the connecting piece 8, which engages the sidewalls of the carrier 5, engages the carrier over a distance greater than the distance between the pivot point or boot 21 of the rod joint 7 and the engagement point 61 of the drawbar 60 and preferably contains this point of engagement. In this case, the fastening gap 22 is formed with a suitable width.
Nàr en passende vinkelstilling er fikseret ved hjælp af stangleddet 7, kan trækstængerne 60, der krydser hinanden, spændes til fiksering af denne vinkelstilling. Stangleddet 7 danner sammen med en trækstang 60 og fastgprelsesgabet 22's omràde mellem ind-15 grebspunkterne 21 og 61 en trekant, hvis vinkelstillinger kan indstilles og fikseres ved hjælp af de spændbare trækstænger.When a suitable angular position is fixed by means of the rod joint 7, the pulling rods 60 which intersect can be tightened to fix this angular position. The rod link 7 together with a drawbar 60 and the area of the fastening gap 22 between the engagement points 21 and 61 form a triangle whose angular positions can be adjusted and fixed by the tensionable drawbars.
Endelig viser fig. 18 og 19 et udfprelseseksempel, ved hvilket endefladerne af stangleddene 7 henholdsvis af disses til -slutningshoveder 15 er udformede konvekse som glatte cirkelbuer, 20 hvor centrum for disse cirkelbuer er drejepunktet pâ forbindelsesstykket 8 og altsâ udgpres af forbindelsesbolten 21. Mellem endefladerne af de to med samme forbindelsesstykke 8 indgribende stangled 7 er anbragt et fortrinsvis kileformet klemmeelement 62 pâ tværs af endefladerne og stangleddene 7's længderetning (se især fig. 18).Finally, FIG. 18 and 19 are an exemplary embodiment in which the end faces of the rod joints 7, respectively, of their connecting heads 15 are formed convex as smooth circular arcs, 20 where the center of these circular arcs is the pivot point of the connecting piece 8 and thus is projected by the connecting bolt 21. Between the end faces of the two the same connecting piece 8 engaging rod joint 7 is arranged a preferably wedge-shaped clamping member 62 transversely of the end surfaces and the longitudinal direction of the rod joints 7 (see in particular Fig. 18).
25 Klemmeelementet er med sine sideflader i friktions- og klemmeindgreb med stangleddene 7's endeflader. I princippet kan denne udfdrelses-form sammenlignes med udfprelsesformen ifplge fig. 11 og 12, og det kileformede klemmeelement kan ligeledes ved hjælp af en skrue 51 trækkes ind i klemmestillingen eller forskydes ud af denne.The clamping element, with its side faces, is in frictional and clamping engagement with the end faces of the rod joints 7. In principle, this embodiment can be compared to the embodiment according to FIG. 11 and 12, and the wedge-shaped clamping member can also be pulled into the clamping position by means of a screw 51 or displaced therefrom.
30 De cirkelbueformede endeflader af stangleddene 7 forlpber skràt i tværretningen svarende til klemmeelementet 62's forldb og dets skrà kileflader, hvilket tydeligst ses i fig. 18. Klemmeelementet 62's sidevægge 63 har et til konturen af stangleddenes endeflader konkavt cirkelbueformet eller mangekantet tværsnit, 35 hvilket tydeligt ses i fig. 19. Derved fâs en formsluttende forbin-delse over praktisk taget hele endefladen af stangleddene 7, nâr det kileformede klemmeelement 62 er spændt ind. Derved kan stangleddet ligeledes indstilles og fikseres trinlpst.30 The circular arcuate end faces of the rod joints 7 extend obliquely in the transverse direction corresponding to the forelimbs of the clamping member 62 and its inclined wedge surfaces, which is most clearly seen in FIG. 18. The side walls 63 of the clamping member 62 have a concave circular or polygonal cross-sectional shape, concave to the contour of the end faces of the rod joints, which is clearly seen in FIG. 19. Thereby, a molded connection is obtained over practically the entire end surface of the rod joints 7 when the wedge-shaped clamping member 62 is tightened. Thereby the rod joint can also be adjusted and fixed stepwise.
Ved hjælp af den foreliggende opfindelse er der opnâet en 14By means of the present invention, a 14 is obtained
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4 ? stangkæde, ved hvilken stangleddene praktisk taget trinldst kan indstilles og fikseres i forskellige vinkelstillinger uden fare for sætninger i sideretningerne, fordi spillerummet i drejepunkterne er elimineret. Trods stangkædens store antal led kan kæden derfor 5 optage store trykkræfter. De ved et rundt bygværk optrædende store ringkræfter, der overfpres over dragerne og stangleddene, er ved de beskrevne udfprelsesformer, især ifdlge fig. 5-19, rettet aksialt mod hinanden, og forskydninger, der ved excentriske belastninger ville medfpre fare for undvigelsesbevægelser i selve stangkæden, er 10 forhindret, fordi ledvinkelblokeringsorganerne henholdsvis deres tilhprende arreteringsorganer og arreteringselementer indgriber raed enderne af stangleddene og desuden eliminerer drejeboltenes spille-rum. Ved elimineringen af dette spillerum opnàs desuden, at ændrin-ger af vægtykkelsen under udstdbningen pà grund af eftergivelighed 15 af forskallingen som f0lge af sâdanne spillerum elimineres.4? rod chain, by which the rod joints can practically be adjusted and fixed in different angular positions without the risk of lateral sentences because the clearance in the pivot points is eliminated. Therefore, despite the large number of links in the bar chain, the chain can absorb large compressive forces. The large annular forces occurring in a circular structure, which are over-exerted over the dragons and rod joints, are in the embodiments described, especially according to FIG. 5-19, oriented axially to each other, and displacements that would, at eccentric loads, pose a risk of avoidance movements in the rod chain itself, are prevented because the joint angle blocking means and their respective arresting means and arresting elements engage the ends of the rod joints and, moreover, the elbow joints and the elbows. In addition, the elimination of this clearance provides that changes in the wall thickness during the casting are eliminated due to the resilience of the formwork as a result of such clearance.
Ved de beskrevne udfdrelsesformer er det muligt at foretage en indstilling af vinkelstillingerne samtidig med forskallingsbe-klædningen eller at bringe stangkæden forsynet med dragere i en bestemt rund stilling og fprst derefter at fastgpre forskallingsbe-20 klædningen til dragerne. I sidstnævnte tilfælde kan der eventuelt i stedet for de spindelformede indstillelige stangled ogsâ anvendes stangled med en fast længde, især dersom der kun skal forskalles krumme vægdele.In the described embodiments, it is possible to adjust the angular positions simultaneously with the formwork lining or to bring the bar chain provided with supports in a certain round position and first to fix the formwork lining to the supports. In the latter case, instead of the spindle-adjustable adjustable rods, fixed length rods can also be used, especially if only curved wall parts have to be formulated.
25 · ...25 · ...
30 3530 35
Claims (31)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3333619A DE3333619C2 (en) | 1983-09-17 | 1983-09-17 | Formwork for circular buildings |
| DE3333619 | 1983-09-17 | ||
| EP84104458A EP0139820B1 (en) | 1983-09-17 | 1984-04-19 | Scaffolding for curved surfaces |
| EP84104458 | 1984-04-19 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK442684D0 DK442684D0 (en) | 1984-09-17 |
| DK442684A DK442684A (en) | 1985-03-18 |
| DK157207B true DK157207B (en) | 1989-11-20 |
| DK157207C DK157207C (en) | 1990-04-16 |
Family
ID=25814068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK442684A DK157207C (en) | 1983-09-17 | 1984-09-17 | FORWARD FOR CURVED SURFACES, ROUND BUILDINGS AND SIMILAR CONSTRUCTIONS |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | ATE41965T1 (en) |
| DK (1) | DK157207C (en) |
| ES (1) | ES8504314A1 (en) |
| NO (1) | NO159872C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2178604B1 (en) * | 2001-04-27 | 2004-10-01 | Encofrados J. Alsina, S.A. | CURVED FORMWORK. |
-
1984
- 1984-04-19 AT AT84104458T patent/ATE41965T1/en not_active IP Right Cessation
- 1984-07-31 ES ES534744A patent/ES8504314A1/en not_active Expired
- 1984-09-14 NO NO843651A patent/NO159872C/en unknown
- 1984-09-17 DK DK442684A patent/DK157207C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO159872B (en) | 1988-11-07 |
| NO843651L (en) | 1985-06-26 |
| ES534744A0 (en) | 1985-05-01 |
| DK157207C (en) | 1990-04-16 |
| ES8504314A1 (en) | 1985-05-01 |
| ATE41965T1 (en) | 1989-04-15 |
| DK442684A (en) | 1985-03-18 |
| DK442684D0 (en) | 1984-09-17 |
| NO159872C (en) | 1989-02-15 |
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| Date | Code | Title | Description |
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| PBP | Patent lapsed |