EP3724420A1 - Corner shuttering element for shuttering and deshuttering of inner corners - Google Patents

Corner shuttering element for shuttering and deshuttering of inner corners

Info

Publication number
EP3724420A1
EP3724420A1 EP18833181.3A EP18833181A EP3724420A1 EP 3724420 A1 EP3724420 A1 EP 3724420A1 EP 18833181 A EP18833181 A EP 18833181A EP 3724420 A1 EP3724420 A1 EP 3724420A1
Authority
EP
European Patent Office
Prior art keywords
formwork
elements
pull
corner
leg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18833181.3A
Other languages
German (de)
French (fr)
Inventor
Bernd Renz
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 SE
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
Publication of EP3724420A1 publication Critical patent/EP3724420A1/en
Pending legal-status Critical Current

Links

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
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/082—Retractable forms for the inside face of at least three walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/001—Corner fastening or connecting means for forming or stiffening elements
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E04G17/042—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by threaded elements

Definitions

  • the invention relates to a corner formwork element for the insertion and removal of inner corners, in particular of shafts.
  • Such Eckschalungs comprise with two angularly arranged legs, which are each connectable to a further formwork element, and on the legs of each on the outer edge retractable and extendable edge strips are arranged, the edge strips together with the other formwork elements by means of several, on a common rail drawbar arranged and extendable and wherein the edge strips in each case by means of several, over the height of the Eckschalungselements distributed arranged Riegelele- elements in their position with respect to the outer side of the leg can be aligned and fixed, are already known from the prior art , They are used in particular for shaft formwork for elevator shafts or the like.
  • a complete inner formwork body can be produced in which, after concreting the shaft or manhole section by pulling on the tie rods of the corner formwork elements, all formwork elements are released from the concreted wall of the manhole and as a complete shutter - Lung body can be pulled upwards out of the shaft.
  • a shaft scarf device is described, for example, in DE 10 2009 055 690 A1. Due to the movable edge strips, the widths of the legs of the corner formwork element can be shortened for stripping. Together with the skirting boards, the subsequent formwork elements are also retracted into the corner formwork element.
  • the entire draws Inner formwork body of the shaft formwork to a smaller total volume together and can be pulled out by means of a crane hanger from the concrete shaft.
  • the outer edge sections of the legs of the corner shuttering element generally consist of relatively thin metal profiles which are fastened to a rib base body reinforced by ribs. There is therefore a risk that these edge portions are pressed during the filling of the concrete by the pressure generated by the concrete inward, which makes noticeable in the finished concrete shaft through a heel in the concrete surface. To avoid this problem, therefore, locking elements are used, which press the edge strip against the edge portion of the leg and set in this position. The edge portion of the leg is thus reinforced by the skirt to withstand a higher concrete pressure can.
  • the locking elements used hitherto have a displaceable rod-shaped angled locking body, the rod-shaped section of the locking body being set against the edge strip from the inside and being fixed in a guide of the locking element by means of a threaded spindle in the direction of the outer side of the leg.
  • the guidance of the locking bodies is fastened to reinforcing ribs present on the leg base body.
  • the previous locking body are therefore structurally relatively complex and not very easy to install, since the locking body must be precisely attached to the edge strip.
  • a further decisive disadvantage is that the locking elements can be arranged only in the region of reinforcing ribs on the legs of the corner formwork element.
  • the present invention has for its object to provide a corner formwork element such that a better alignment of the edge strips of the legs of the Eckschalungselements is achieved than in known Eckschalungs instituten.
  • the corner formwork element according to the invention for forming and removing inner corners, in particular of shafts, has two legs which are arranged at an angle to one another and which can each be connected to a further formwork element.
  • edge strips which can be moved in and out at the outer edge are arranged, the edge strips being retractable and extendable together with the further formwork elements by means of a plurality of joint levers arranged on a common drawbar, and wherein the edge strips are respectively extended by means of several the height of the Eckschalungselements distributed arranged locking elements in position with respect to the outer side of the leg can be aligned and fixed.
  • the corner formwork element according to the invention is characterized in that the Rieg gelieri are arranged on guides for pull-out webs of the skirting.
  • the locking elements are no longer attached to ribs, but to guides for pull-out webs of the edge strips.
  • the articulated levers for moving in and out the edge strips also engage with these pull-out webs. Since such extension webs are arranged in any case at the upper and lower end of the edge strips, now the locking elements can also be attached very close to the lower end of the edge strips and thus where the highest concrete pressure is exerted on the edge portion of the legs of Eckschalungs- elements provide stiffening and stabilization of the marginal section.
  • the outer edge of the legs is each formed by an angle profile
  • the first profile Donate! is attached to a base body of the leg and the second profile leg together with the outside of the base body forms a formwork skin of the leg.
  • the edge strip can be adjusted with the locking elements from the inside against the formwork leg of the angle profile forming the formwork skin.
  • the free profile leg of the angle profile at its outermost edge undergoes support by the edge strip.
  • the locking elements each have an adjustable clamping jaw, which engages the pull-out web of the edge strip.
  • the clamping jaw presses directly on the pull-out bar and thereby presses the skirting bar against the formwork skin of the corner formwork element.
  • the jaw can be manually adjustable to do so. This allows a precise alignment of the edge strip over its entire length by means of various locking elements. In this case, it is also possible to press the clamping jaw more strongly against the pull-out web of the edge strip in the lower region of the corner formwork element in order to compensate for the higher concrete pressure to be expected there compared with the concrete pressure in the upper region of the corner formwork element.
  • the locking elements are each substantially U-shaped and the clamping jaw mounted in the U-base and linearly displaceable between the U-legs.
  • the locking elements are therefore easy to manufacture, stable components, which are also easy to assemble.
  • the locking elements can each case by means of a Screw or a bolt to be attached to the guide of the pull-out strip, where in the screw or the bolt with lateral play is guided through a slot in the pull-out web. Through the slot the pull-out webs and thus the edge bar can be extended and retracted without obstruction by the locking elements.
  • the lateral play between the screw or bolt and the elongated hole makes it possible to displace the pull-out web and thus the edge strip in the direction of the outside of the leg by means of the clamping jaw in order to be able to optimally align the edge strip.
  • a locking element is arranged in each case at least on the lowermost guide for a pull-out web of the edge strip.
  • the latch elements can preferably be arranged uniformly distributed over the height of the corner formwork element.
  • Typical heights for the corner formwork element are 1.20 m, 2.70 m, 3.00 m, 3.30 m or 3.60 m. While four locking elements per leg are sufficient for the shorter corner formwork elements, six locking elements per leg should be provided for heights from 3.30 m upwards.
  • FIG. 1 shows a perspective inside view of a corner scarf ungselements invention
  • Fig. 2 is an enlarged detail of the Eckschalungselements
  • FIG. 3 shows an individual view of a locking element of the corner formwork element from FIG. 1.
  • a corner formwork element 10 is shown according to the invention for an otherwise not shown inner formwork for a shaft.
  • the corner formwork element 10 has two legs 12, 14 arranged at right angles to one another, the outer sides 12. 1, F of which form a formwork skin of the corner formwork element 10.
  • the legs 12, 14 each have outer edge portions 12.2, 14.2, which are each formed by a metal profile and are secured to a leg base body.
  • respective edge strips 16, 18 can be moved in and out in the directions of the arrows 20, 22.
  • articulated levers 24, 26 are provided, which are actuated by pulling on a pull rod 28.
  • edge strips 16, 18 have pull-out webs 30, which are guided in guides 32 on the inside of the legs 12, 14. At some of these guides 32 locking elements 34 are attached, which serve the alignment of the edge strips 16, 18 in the direction of the formwork skin 12.1, 14.1, as Fig. 2 in particular illustrates.
  • FIG. 2 is an enlarged view of the detail II of FIG. 1. It can be seen the attachment of the locking element 34 on the guide 32 of the pull-out web 30 by means of a screw 36.
  • the screw 36 is passed through a slot (not shown) in the extension web 30 with a lateral clearance, so that the movement of the edge strip 18 in the direction of arrow 22 is not hindered by the locking element 34.
  • the extension webs 30 can therefore be moved freely along the guides 32, these movements of the edge strips 16, 18 being triggered by the articulated levers 26.
  • the locking element 34 essentially has a U-shape, wherein in a U-base 38 a clamping jaw 40 is displaceably mounted between U-legs 42, 44.
  • a threaded spindle 46 is provided on which a setting wheel 48 is arranged for ma nual adjustment of the clamping jaw 40.
  • the clamping jaw 40 presses laterally on the pull-out web 30 and thereby moves it and the edge strip 18 attached thereto (not shown in FIG. 2) in the direction of the facing skin 14.1. Since the skirt 18 from the inside against the Edge portion 14.2 of the leg 14 is applied, can be aligned using the locking elements 34 of this edge portion 14.2 and stabilized so that it can withstand the concreting concrete pressure in the same way as the base body of the legs 12, 14. In particular, the locking elements 34 in the lower region of the Eckschalungselements 10 are of particular importance, since here the concrete pressure acting on the legs 12, 14, is greatest.
  • the edge strips 16 and 18 are extended, that is, the corner formwork element 10 and further formwork elements adjoining the edge strips 16, 18, which are not shown here, together form an inner formwork, for example for a manhole or building corner.
  • corner forming elements 10 can be connected to each other via at least one further planar formwork element to form a complete inner shaft formwork.
  • For stripping can be pulled by pulling on the tie rod 28 via the hinge lever 24, 26, the edge strips 16, 18 and the adjoining formwork elements inside. If this is done on all four corner formwork elements 10 of the internal shaft formwork, then all formwork elements can be detached from the concreted wall and the inside shaft formwork can be reduced in volume as a uniform formwork body so that the entire formwork body can be pulled upwards out of the shaft.
  • the corner formwork elements 10 can be manufactured at different heights. Usual heights are 1.20 m, 2.70 m, 3.00 m, 3.20 m and 3.60 m.
  • the design according to the invention ensures that even with high corner formwork elements 10, a smooth concrete surface is created on the inside of the shaft.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention relates to a corner shuttering element with two limbs (12, 14) arranged at an angle to each other, on the outer edge of which limbs (12, 14), edge strips (16, 18) are arranged that can be retracted and extended by means of articulated levers (24, 26), wherein the edge strips (16, 18) can each be aligned and fixed in their position by means of a plurality of locking elements (34) arranged distributed over the height of the corner shuttering element, and wherein the locking elements (34) are arranged on guides (32) for pull-out webs (30) of the edge strips (16, 18).

Description

Eckschalunaselement zur Ein- und Ausschälung von Innenecken  Eckschalunaselement for insertion and removal of inner corners
Die Erfindung betrifft ein Eckschalungselement zur Ein- und Ausschalung von In- nenecken, insbesondere von Schächten. Derartige Eckschalungselemente mit zwei im Winkel zueinander angeordneten Schenkeln, die jeweils mit einem weiteren Schalungselement verbindbar sind, und an dessen Schenkeln jeweils am äußeren Rand ein- und ausfahrbare Randleisten angeordnet sind, wobei die Randleisten gemeinsam mit den weiteren Schalungs- elementen mittels mehrerer, an einer gemeinsamen Zugstange angeordneter Ge- lenkhebel ein- und ausfahrbar sind und wobei die Randleisten jeweils mittels meh- rerer, über die Höhe des Eckschalungselements verteilt angeordneter Riegelele- mente in ihrer Position bezüglich der Schenkelaußenseite ausrichtbar und fixierbar sind, sind aus dem Stand der Technik bereits bekannt. Sie werden insbesondere bei Schachtschalungen für Aufzugsschächte oder dergleichen eingesetzt. Mithilfe von vier solcher Eckschalungselemente und dazwischen angeordneter weiterer Schalungselemente kann ein vollständiger Innenschalungskörper hergestellt wer- den, bei dem nach dem Betonieren des Schachts oder Schachtabschnitts durch Ziehen an den Zugstangen der Eckschalungselemente sämtliche Schalungsele- mente von der betonierten Wand des Schachts gelöst und als kompletter Scha- lungskörper nach oben aus dem Schacht herausgezogen werden können. Eine sol- che Schachtschalvorrichtung ist beispielsweise in der DE 10 2009 055 690 Al be- schrieben. Durch die beweglichen Randleisten können zum Ausschalen die Breiten der Schenkel des Eckschalungselements verkürzt werden. Gemeinsam mit den Randleisten werden dabei auch die anschließenden Schalungselemente in das Eck- schalungselement eingefahren. Wird dieses Einfahren durch Ziehen an den Zug- stangen aller vier Eckschalungselemente durchgeführt, so zieht sich der gesamte Innenschalungskörper der Schachtschalung auf ein kleineres Gesamtvolumen zu- sammen und kann mittels eines Krangehänges aus dem betonierten Schacht her- ausgezogen werden. Damit dieses Einfahren der Randleisten und der anschließenden Schalungsele- mente möglich ist, bestehen die äußeren Randabschnitte der Schenkel des Eck- schalungselements in der Regel aus relativ dünnen Metallprofilen, die an einem durch Rippen verstärkten Schenkelbasiskörper befestigt sind. Es besteht daher die Gefahr, dass diese Randabschnitte beim Einfüllen des Betons durch den vom Beton erzeugten Druck nach innen gedrückt werden, was sich im fertig betonierten Schacht durch einen Absatz in der Betonoberfläche bemerkbar macht. Zur Vermei- dung dieses Problems werden daher Riegelelemente eingesetzt, die die Randleiste gegen den Randabschnitt des Schenkels drücken und in dieser Position festlegen. Der Randabschnitt des Schenkels wird somit durch die Randleiste verstärkt, um einem höheren Betondruck standhalten zu können. The invention relates to a corner formwork element for the insertion and removal of inner corners, in particular of shafts. Such Eckschalungselemente with two angularly arranged legs, which are each connectable to a further formwork element, and on the legs of each on the outer edge retractable and extendable edge strips are arranged, the edge strips together with the other formwork elements by means of several, on a common rail drawbar arranged and extendable and wherein the edge strips in each case by means of several, over the height of the Eckschalungselements distributed arranged Riegelele- elements in their position with respect to the outer side of the leg can be aligned and fixed, are already known from the prior art , They are used in particular for shaft formwork for elevator shafts or the like. With the aid of four such corner formwork elements and other formwork elements arranged therebetween, a complete inner formwork body can be produced in which, after concreting the shaft or manhole section by pulling on the tie rods of the corner formwork elements, all formwork elements are released from the concreted wall of the manhole and as a complete shutter - Lung body can be pulled upwards out of the shaft. Such a shaft scarf device is described, for example, in DE 10 2009 055 690 A1. Due to the movable edge strips, the widths of the legs of the corner formwork element can be shortened for stripping. Together with the skirting boards, the subsequent formwork elements are also retracted into the corner formwork element. If this retraction is carried out by pulling on the tie rods of all four corner formwork elements, then the entire draws Inner formwork body of the shaft formwork to a smaller total volume together and can be pulled out by means of a crane hanger from the concrete shaft. In order for this retraction of the edge strips and the subsequent shuttering elements to be possible, the outer edge sections of the legs of the corner shuttering element generally consist of relatively thin metal profiles which are fastened to a rib base body reinforced by ribs. There is therefore a risk that these edge portions are pressed during the filling of the concrete by the pressure generated by the concrete inward, which makes noticeable in the finished concrete shaft through a heel in the concrete surface. To avoid this problem, therefore, locking elements are used, which press the edge strip against the edge portion of the leg and set in this position. The edge portion of the leg is thus reinforced by the skirt to withstand a higher concrete pressure can.
Die bisher eingesetzten Riegelelemente weisen einen verschieblichen, stabförmi- gen abgewinkelten Riegelkörper auf, wobei der stabförmige Abschnitt des Riegel- körpers von innen gegen die Randleiste angestellt und in einer Führung des Rie- gelelements mittels einer Gewindespindel in Richtung Schenkelaußenseite fixiert wird. Die Führung der Riegelkörper wird dabei an am Schenkelgrundkörper vor- handenen Verstärkungsrippen befestigt. Die bisherigen Riegelkörper sind daher zum einen konstruktiv relativ aufwendig und auch nicht sehr montagefreundlich, da die Riegelkörper präzise an der Randleiste angesetzt werden müssen. Ein wei- terer entscheidender Nachteil besteht darin, dass die Riegelelemente nur im Be- reich von Verstärkungsrippen an den Schenkeln des Eckschalungselements ange- ordnet werden können. Im durch den Betondruck besonders belasteten unteren Bereich des Eckschalungselements sind jedoch keine Verstärkungsrippen vorgese- hen, sondern Gelenkhebel zum Ein- und Ausfahren der Randleisten. Die bisherigen Riegelelemente zur Ausrichtung der Randleisten lassen sich somit nicht optimal positionieren. Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Eckschalungselement derart weiterzubilden, dass eine bessere Ausrichtung der Randleisten der Schenkel des Eckschalungselements als bei bekannten Eckschalungselementen erreicht wird. The locking elements used hitherto have a displaceable rod-shaped angled locking body, the rod-shaped section of the locking body being set against the edge strip from the inside and being fixed in a guide of the locking element by means of a threaded spindle in the direction of the outer side of the leg. The guidance of the locking bodies is fastened to reinforcing ribs present on the leg base body. The previous locking body are therefore structurally relatively complex and not very easy to install, since the locking body must be precisely attached to the edge strip. A further decisive disadvantage is that the locking elements can be arranged only in the region of reinforcing ribs on the legs of the corner formwork element. However, no reinforcing ribs are provided in the lower region of the corner formwork element, which is particularly stressed by the concrete pressure, but rather joint levers for extending and retracting the edge strips. The previous locking elements for aligning the edge strips can thus not be optimally positioned. The present invention has for its object to provide a corner formwork element such that a better alignment of the edge strips of the legs of the Eckschalungselements is achieved than in known Eckschalungselementen.
Die Aufgabe wird durch ein Eckschalungselement mit den Merkmalen des An- spruchs 1 gelöst. The object is achieved by a corner formwork element having the features of claim 1.
Das erfindungsgemäße Eckschalungselement zur Ein- und Ausschalung von Innen- ecken, insbesondere von Schächten, weist zwei im Winkel zueinander angeordnete Schenkel auf, die jeweils mit einem weiteren Schalungselement verbindbar sind. An den Schenkeln sind jeweils am äußeren Rand ein- und ausfahrbare Randleisten angeordnet, wobei die Randleisten gemeinsam mit den weiteren Schalungsele- menten mittels mehrerer, an einer gemeinsamen Zugstange angeordneter Gelenk- hebel ein- und ausfahrbar sind und wobei die Randleisten jeweils mittels mehrerer, über die Höhe des Eckschalungselements verteilt angeordneter Riegelelemente in ihrer Position bezüglich der Schenkelaußenseite ausrichtbar und fixierbar sind. Das Eckschalungselement ist erfindungsgemäß dadurch gekennzeichnet, dass die Rie- gelelemente an Führungen für Auszugsstege der Randleisten angeordnet sind. The corner formwork element according to the invention for forming and removing inner corners, in particular of shafts, has two legs which are arranged at an angle to one another and which can each be connected to a further formwork element. On the legs, in each case edge strips which can be moved in and out at the outer edge are arranged, the edge strips being retractable and extendable together with the further formwork elements by means of a plurality of joint levers arranged on a common drawbar, and wherein the edge strips are respectively extended by means of several the height of the Eckschalungselements distributed arranged locking elements in position with respect to the outer side of the leg can be aligned and fixed. The corner formwork element according to the invention is characterized in that the Rieg gelelemente are arranged on guides for pull-out webs of the skirting.
Bei dem erfindungsgemäßen Eckschalungselement sind die Riegelelemente nicht mehr an Rippen, sondern an Führungen für Auszugsstege der Randleisten befes- tigt. An diesen Auszugsstegen greifen auch die Gelenkhebel zum Ein- und Ausfah- ren der Randleisten an. Da solche Auszugsstege auf jeden Fall am oberen und unteren Ende der Randleisten angeordnet sind, können jetzt die Riegelelemente auch sehr dicht am unteren Ende der Randleisten befestigt werden und somit dort, wo der höchste Betondruck auf den Randabschnitt der Schenkel des Eckschalungs- elements ausgeübt wird, für eine Versteifung und Stabilisierung des Randab- schnitts sorgen. In the corner formwork element according to the invention, the locking elements are no longer attached to ribs, but to guides for pull-out webs of the edge strips. The articulated levers for moving in and out the edge strips also engage with these pull-out webs. Since such extension webs are arranged in any case at the upper and lower end of the edge strips, now the locking elements can also be attached very close to the lower end of the edge strips and thus where the highest concrete pressure is exerted on the edge portion of the legs of Eckschalungs- elements provide stiffening and stabilization of the marginal section.
Bei einer bevorzugten Ausgestaltung des Eckschalungselements wird der äußere Rand der Schenkel jeweils von einem Winkelprofil gebildet, dessen erster Profil- schenke! an einem Basiskörper des Schenkels befestigt ist und dessen zweiter Pro- filschenkel zusammen mit der Außenseite des Basiskörpers eine Schalhaut des Schenkels bildet. Die Randleiste ist mit den Riegelelementen von innen gegen den die Schalhaut bildenden Profilschenkel des Winkelprofils anstellbar. Somit erfährt der freie Profilschenkel des Winkelprofils an seiner äußersten Kante eine Unter- stützung durch die Randleiste. Dabei ist es möglich, die Randleisten mittels der Riegelelemente derart auszurichten, dass sie den die Schalhaut mit bildenden Pro- filschenkel des Winkelprofils in eine bündige Ausrichtung mit der Außenseite des Basiskörpers bringen und in dieser Position fixieren. Auch während des Betonierens bleibt durch die mittels der Riegelelemente gegen den freien Profilschenkel ange- stellte Randleiste der bündige Verlauf der Schalhaut des gesamten Eckschalungs- elements mit den benachbarten Schalungselementen erhalten. In a preferred embodiment of the Eckschalungselements the outer edge of the legs is each formed by an angle profile, the first profile Donate! is attached to a base body of the leg and the second profile leg together with the outside of the base body forms a formwork skin of the leg. The edge strip can be adjusted with the locking elements from the inside against the formwork leg of the angle profile forming the formwork skin. Thus, the free profile leg of the angle profile at its outermost edge undergoes support by the edge strip. In this case, it is possible to align the edge strips by means of the locking elements in such a way that they bring the formwork leg of the angle profile into a flush alignment with the outside of the base body and fix it in this position. Even during concreting, the flush profile of the formwork skin of the entire corner formwork element with the adjacent formwork elements is retained by the edge strip set against the free profile limb by means of the locking elements.
Weitere Vorteile ergeben sich, wenn die Riegelelemente jeweils eine verstellbare Spannbacke aufweisen, die an dem Auszugssteg der Randleiste angreift. Auf diese Weise kann beim Riegelelement auf das Vorsehen separater Riegelkörper verzich- tet werden. Die Spannbacke drückt direkt auf den Auszugssteg und presst dadurch die Randleiste gegen die Schalhaut des Eckschalungselements. Die Spannbacke kann dazu manuell verstellbar sein. Dies erlaubt eine präzise Aus- richtung der Randleiste über ihre gesamte Länge durch verschiedene Riegelele- mente. Dabei ist es auch möglich, die Spannbacke im unteren Bereich des Eck- schalungselements stärker gegen den Auszugssteg der Randleiste zu drücken, um den dort zu erwartenden höheren Betondruck gegenüber dem Betondruck im obe- ren Bereich des Eckschalungselements auszugleichen. Further advantages arise when the locking elements each have an adjustable clamping jaw, which engages the pull-out web of the edge strip. In this way, it is possible to dispense with the provision of separate locking bodies in the case of the locking element. The clamping jaw presses directly on the pull-out bar and thereby presses the skirting bar against the formwork skin of the corner formwork element. The jaw can be manually adjustable to do so. This allows a precise alignment of the edge strip over its entire length by means of various locking elements. In this case, it is also possible to press the clamping jaw more strongly against the pull-out web of the edge strip in the lower region of the corner formwork element in order to compensate for the higher concrete pressure to be expected there compared with the concrete pressure in the upper region of the corner formwork element.
Für die eigentliche Ausgestaltung der Riegelelemente gibt es verschiedene Mög- lichkeiten. Bei einer bevorzugten Ausführungsform sind die Riegelelemente jeweils im Wesentlichen U-förmig ausgebildet und die Spannbacke in der U-Basis gelagert und zwischen den U-Schenkeln linear verschiebbar. Die Riegelelemente sind dadurch einfach herzustellende, stabile Bauteile, die außerdem einfach zu montie- ren sind. Bevorzugt können die Riegelelemente dabei jeweils mittels einer Schraube oder eines Bolzens an der Führung des Auszugsstegs befestigt sein, wo bei die Schraube oder der Bolzen mit seitlichem Spiel durch ein Langloch in dem Auszugssteg geführt ist. Durch das Langloch können die Auszugsstege und damit die Randleiste ohne Behinderung durch die Riegelelemente ein- und ausgefahren werden. Das seitliche Spiel zwischen Schraube bzw. Bolzen und dem Langloch er- möglicht ein Verschieben des Auszugsstegs und damit der Randleiste in Richtung Schenkelaußenseite mittels der Spannbacke, um die Randleiste optimal ausrichten zu können. Auch bei sehr kurzen Eckschalungselementen ist es dabei von Vorteil, wenn ein Riegelelement jeweils zumindest an der untersten Führung für einen Auszugssteg der Randleiste angeordnet ist. Dort ist die Gefahr einer Verformung der Randab- schnitte der Schenkel des Eckschalungselements durch den Betondruck am größ- ten. Vorzugsweise können die Riegelelemente jedoch gleichmäßig verteilt über die Höhe des Eckschalungselements angeordnet sein. Typische Höhen für das Eck- schalungselement sind 1,20 m, 2,70 m, 3,00 m, 3,30 m oder 3,60 m. Während bei den kürzeren Eckschalungselementen vier Riegelelemente je Schenkel ausrei- chend sind, sollten bei Höhen ab 3,30 m sechs Riegelelemente je Schenkel vorge- sehen werden. There are various possibilities for the actual design of the locking elements. In a preferred embodiment, the locking elements are each substantially U-shaped and the clamping jaw mounted in the U-base and linearly displaceable between the U-legs. The locking elements are therefore easy to manufacture, stable components, which are also easy to assemble. Preferably, the locking elements can each case by means of a Screw or a bolt to be attached to the guide of the pull-out strip, where in the screw or the bolt with lateral play is guided through a slot in the pull-out web. Through the slot the pull-out webs and thus the edge bar can be extended and retracted without obstruction by the locking elements. The lateral play between the screw or bolt and the elongated hole makes it possible to displace the pull-out web and thus the edge strip in the direction of the outside of the leg by means of the clamping jaw in order to be able to optimally align the edge strip. Even with very short corner formwork elements, it is advantageous if a locking element is arranged in each case at least on the lowermost guide for a pull-out web of the edge strip. There, the risk of deformation of the edge sections of the limbs of the corner formwork element is greatest due to the concrete pressure. However, the latch elements can preferably be arranged uniformly distributed over the height of the corner formwork element. Typical heights for the corner formwork element are 1.20 m, 2.70 m, 3.00 m, 3.30 m or 3.60 m. While four locking elements per leg are sufficient for the shorter corner formwork elements, six locking elements per leg should be provided for heights from 3.30 m upwards.
Weitere Vorteile und Eigenschaften der Erfindung werden nachfolgend anhand ei- nes Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher beschrieben. Further advantages and features of the invention will be described in more detail below with reference to an exemplary embodiment with reference to the drawing.
Im Einzelnen zeigen : In detail show:
Fig. 1 eine perspektivische Innenansicht eines erfindungsgemäßen Eck- schal ungselements; 1 shows a perspective inside view of a corner scarf ungselements invention;
Fig. 2 eine vergrößerte Detaildarstellung des Eckschalungselements aus  Fig. 2 is an enlarged detail of the Eckschalungselements
Fig. 1;  Fig. 1;
Fig. 3 eine Einzelansicht eines Riegelelements des Eckschalungselements aus Fig. 1. In Fig. 1 ist ein Eckschalungselement 10 gemäß der Erfindung für eine ansonsten nicht weiter dargestellte Innenschalung für einen Schacht dargestellt. Das Eck- schalungselement 10 weist zwei rechtwinklig zueinander angeordnete Schenkel 12, 14 auf, deren Außenseiten 12.1, F eine Schalungshaut des Eckschalungsele- ments 10 bilden. Die Schenkel 12, 14 weisen jeweils äußere Randabschnitte 12.2, 14.2 auf, die jeweils von einem Metallprofil gebildet werden und an einem Schen- kelbasiskörper befestigt sind. Innerhalb dieser Randabschnitte 12.2, 14.2 sind je- weils Randleisten 16, 18 in den Pfeilrichtungen 20, 22 ein- und ausfahrbar. Für diese Bewegung der Randleisten 16, 18 sind Gelenkhebel 24, 26 vorgesehen, die durch Ziehen an einer Zugstange 28 betätigbar sind. Die Randleisten 16, 18 wei- sen dazu Auszugsstege 30 auf, die in Führungen 32 auf der Innenseite der Schen- kel 12, 14 geführt sind. An einigen dieser Führungen 32 sind Riegelelemente 34 befestigt, die der Ausrichtung der Randleisten 16, 18 in Richtung der Schalhaut 12.1, 14.1 dienen, wie insbesondere Fig. 2 verdeutlicht. 3 shows an individual view of a locking element of the corner formwork element from FIG. 1. In Fig. 1, a corner formwork element 10 is shown according to the invention for an otherwise not shown inner formwork for a shaft. The corner formwork element 10 has two legs 12, 14 arranged at right angles to one another, the outer sides 12. 1, F of which form a formwork skin of the corner formwork element 10. The legs 12, 14 each have outer edge portions 12.2, 14.2, which are each formed by a metal profile and are secured to a leg base body. Within these edge sections 12.2, 14.2, respective edge strips 16, 18 can be moved in and out in the directions of the arrows 20, 22. For this movement of the edge strips 16, 18 articulated levers 24, 26 are provided, which are actuated by pulling on a pull rod 28. For this purpose, the edge strips 16, 18 have pull-out webs 30, which are guided in guides 32 on the inside of the legs 12, 14. At some of these guides 32 locking elements 34 are attached, which serve the alignment of the edge strips 16, 18 in the direction of the formwork skin 12.1, 14.1, as Fig. 2 in particular illustrates.
Fig. 2 ist eine vergrößerte Darstellung des Ausschnitts II aus Fig. 1. Es ist die Befestigung des Riegelelements 34 an der Führung 32 des Auszugsstegs 30 mittels einer Schraube 36 zu erkennen. Die Schraube 36 ist mit einem seitlichen Spiel durch ein Langloch (nicht dargestellt) im Auszugssteg 30 hindurchgeführt, sodass die Bewegung der Randleiste 18 in der Pfeilrichtung 22 durch das Riegelelement 34 nicht behindert wird. Die Auszugsstege 30 lassen sich daher längs der Führun- gen 32 frei bewegen, wobei diese Bewegungen der Randleisten 16, 18 durch die Gelenkhebel 26 ausgelöst werden. Wie auch insbesondere Fig. 3 verdeutlicht, weist das Riegelelement 34 im We- sentlichen eine U-Form auf, wobei in einer U-Basis 38 eine Spannbacke 40 ver- schiebbar zwischen U-Schenkeln 42, 44 gelagert ist. Zur Verstellung der Spann- backe 40 ist eine Gewindespindel 46 vorgesehen, an der ein Stellrad 48 zur ma nuellen Verstellung der Spannbacke 40 angeordnet ist. 2 is an enlarged view of the detail II of FIG. 1. It can be seen the attachment of the locking element 34 on the guide 32 of the pull-out web 30 by means of a screw 36. The screw 36 is passed through a slot (not shown) in the extension web 30 with a lateral clearance, so that the movement of the edge strip 18 in the direction of arrow 22 is not hindered by the locking element 34. The extension webs 30 can therefore be moved freely along the guides 32, these movements of the edge strips 16, 18 being triggered by the articulated levers 26. As is also illustrated in particular by FIG. 3, the locking element 34 essentially has a U-shape, wherein in a U-base 38 a clamping jaw 40 is displaceably mounted between U-legs 42, 44. To adjust the clamping jaw 40, a threaded spindle 46 is provided on which a setting wheel 48 is arranged for ma nual adjustment of the clamping jaw 40.
Wie Fig. 2 zeigt, drückt die Spannbacke 40 seitlich auf den Auszugssteg 30 und bewegt dadurch diesen sowie die daran befestigte Randleiste 18 (in Fig. 2 nicht gezeigt) in Richtung Schalhaut 14.1. Da die Randleiste 18 von innen gegen den Randabschnitt 14.2 des Schenkels 14 anliegt, kann mithilfe der Riegelelemente 34 dieser Randabschnitt 14.2 ausgerichtet und stabilisiert werden, sodass er dem beim Betonieren entstehenden Betondruck in gleicher Weise wie die Basiskörper der Schenkel 12, 14 standhalten kann. Dabei sind insbesondere die Riegelelemente 34 im unteren Bereich des Eckschalungselements 10 von besonderer Bedeutung, da hier der Betondruck, der auf die Schenkel 12, 14 wirkt, am größten ist. As shown in FIG. 2, the clamping jaw 40 presses laterally on the pull-out web 30 and thereby moves it and the edge strip 18 attached thereto (not shown in FIG. 2) in the direction of the facing skin 14.1. Since the skirt 18 from the inside against the Edge portion 14.2 of the leg 14 is applied, can be aligned using the locking elements 34 of this edge portion 14.2 and stabilized so that it can withstand the concreting concrete pressure in the same way as the base body of the legs 12, 14. In particular, the locking elements 34 in the lower region of the Eckschalungselements 10 are of particular importance, since here the concrete pressure acting on the legs 12, 14, is greatest.
In Fig. 1 sind die Randleisten 16 und 18 ausgefahren, das heißt, das Eckschalungs- element 10 und an die Randleisten 16, 18 anschließende weitere Schalungsele- mente, die hier nicht gezeigt sind, bilden gemeinsam eine Innenschalung beispiels- weise für eine Schacht- oder Gebäudeecke. Dabei können vier solcher Eckscha- lungselemente 10 über mindestens jeweils ein weiteres ebenes Schalungselement miteinander zu einer kompletten Innenschachtschalung verbunden werden. Zum Ausschalen können durch Ziehen an der Zugstange 28 über die Gelenkhebel 24, 26 die Randleisten 16, 18 und die daran anschließenden Schalungselemente nach innen gezogen werden. Wird dies an allen vier Eckschalungselementen 10 der In- nenschachtschalung vorgenommen, so können sämtliche Schalungselemente von der betonierten Wand abgelöst und die Innenschachtschalung als ein einheitlicher Schalungskörper im Volumen so verkleinert werden, dass der gesamte Schalungs- körper nach oben aus dem Schacht herausgezogen werden kann. 1, the edge strips 16 and 18 are extended, that is, the corner formwork element 10 and further formwork elements adjoining the edge strips 16, 18, which are not shown here, together form an inner formwork, for example for a manhole or building corner. In this case, four such corner forming elements 10 can be connected to each other via at least one further planar formwork element to form a complete inner shaft formwork. For stripping can be pulled by pulling on the tie rod 28 via the hinge lever 24, 26, the edge strips 16, 18 and the adjoining formwork elements inside. If this is done on all four corner formwork elements 10 of the internal shaft formwork, then all formwork elements can be detached from the concreted wall and the inside shaft formwork can be reduced in volume as a uniform formwork body so that the entire formwork body can be pulled upwards out of the shaft.
Die Eckschalungselemente 10 können in verschiedenen Höhen hergestellt werden. Übliche Höhen sind 1,20 m, 2,70 m, 3,00 m, 3,20 m und 3,60 m. Durch die erfin- dungsgemäße Ausgestaltung ist sichergestellt, dass auch bei hohen Eckschalungs- elementen 10 eine glatte Betonoberfläche auf der Schachtinnenseite entsteht. The corner formwork elements 10 can be manufactured at different heights. Usual heights are 1.20 m, 2.70 m, 3.00 m, 3.20 m and 3.60 m. The design according to the invention ensures that even with high corner formwork elements 10, a smooth concrete surface is created on the inside of the shaft.

Claims

Patentansprüche claims
1. Eckschalungselement zur Ein- und Ausschalung von Innenecken, insbeson- dere von Schächten, mit zwei im Winkel zueinander angeordneten Schen- keln (12, 14), die jeweils mit einem weiteren Schalungselement verbindbar sind, und an dessen Schenkeln (12, 14) jeweils am äußerem Rand ein- und ausfahrbare Randleisten (16, 18) angeordnet sind, wobei die Randleis- ten (16, 18) gemeinsam mit den weiteren Schalungselementen mittels mehrerer, an einer gemeinsamen Zugstange (28) angeordneten Gelenkhe- beln (24, 26) ein- und ausfahrbar sind und wobei die Randleisten (16, 18) jeweils mittels mehrerer, über die Höhe des Eckschalungselements (10) verteilt angeordneter Riegelelemente (34) in ihrer Position bezüglich der Schenkelaußenseite (12.1, 14.1) ausrichtbar und fixierbar sind, dadurch gekennzeichnet, dass die Riegelelemente (34) an Führungen (32) für Aus- zugsstege (30) der Randleisten (16, 18), angeordnet sind. 1. Corner formwork element for forming and removing internal corners, in particular of manholes, with two legs (12, 14) arranged at an angle to one another, which are each connectable to a further formwork element, and to whose legs (12, 14) the edge strips (16, 18) together with the further shuttering elements are arranged by means of a plurality of articulated levers (24, 26) arranged on a common pull rod (28) ) and wherein the edge strips (16, 18) in each case by means of several over the height of the Eckschalungselements (10) distributed arranged locking elements (34) in position with respect to the Schenkelaußenseite (12.1, 14.1) are alignable and fixable, characterized in that the locking elements (34) are arranged on guides (32) for pull-out webs (30) of the edge strips (16, 18).
2. Eckschalungselement nach Anspruch 1, dadurch gekennzeichnet, dass der äußere Rand (12.2, 14.2) der Schenkel (12, 14) jeweils von einem Winkel- profil gebildet ist, dessen einer Profilschenkel an einem Basiskörper des2. Eckschalungselement according to claim 1, characterized in that the outer edge (12.2, 14.2) of the legs (12, 14) is formed in each case by an angle profile, whose one profile leg on a base body of
Schenkels (12, 14) befestigt ist und dessen zweiter Profilschenkel (12.2, 12.4) zusammen mit der Außenseite (12.1, 14.1) des Basiskörpers eine Schalhaut des Schenkels (12, 14) bildet, und dass die Randleiste (16, 18) mit den Riegelelementen (34) von innen gegen den die Schalhaut bilden- den Profilschenkel (12.2, 14.2) des Winkelprofils anstellbar ist. Leg (12, 14) is fixed and the second profile leg (12.2, 12.4) together with the outer side (12.1, 14.1) of the base body forms a formwork skin of the leg (12, 14), and that the edge strip (16, 18) with the Bar elements (34) from the inside against the formwork skin forming the profile leg (12.2, 14.2) of the angle profile can be adjusted.
3. Eckschalungselement nach Anspruch 2, dadurch gekennzeichnet, dass die Randleisten (16, 18) mittels der Riegelelemente (34) derart ausrichtbar sind, dass sie den die Schalhaut mitbildenden Profilschenkel (12.2, 14.2) des Winkelprofils in eine bündige Ausrichtung mit der Außenseite (12.1, 14.1) des Basiskörpers bringen und in dieser Position fixieren. 3. corner formwork element according to claim 2, characterized in that the edge strips (16, 18) by means of the locking elements (34) are aligned such that they form the formwork facing the formwork leg (12.2, 14.2) of the angle profile in a flush alignment with the outside ( 12.1, 14.1) of the base body and fix in this position.
4. Eckschalungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Riegelelemente (34) jeweils eine verstellbare Spannbacke (40) aufweisen, die an dem Auszugssteg (30) angreift. 4. Eckschalungselement according to any one of the preceding claims, characterized in that the locking elements (34) each have an adjustable clamping jaw (40) which engages the pull-out web (30).
5. Eckschalungselement nach Anspruch 4, dadurch gekennzeichnet, dass die5. corner formwork element according to claim 4, characterized in that the
Riegelelemente (34) jeweils im Wesentlichen U-förmig ausgebildet sind und die Spannbacke (40) in der U-Basis (38) gelagert und zwischen den U- Schenkeln (42, 44) linear verschiebbar ist. Latch elements (34) are each formed substantially U-shaped and the clamping jaw (40) in the U-base (38) mounted and between the U-legs (42, 44) is linearly displaceable.
6. Eckschalungselement nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Spannbacke (40) manuell verstellbar ist. 6. Eckschalungselement according to claim 4 or 5, characterized in that the clamping jaw (40) is manually adjustable.
7. Eckschalungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Riegelelemente (34) jeweils mittels einer Schraube (36) oder eines Bolzens an der Führung (32) des Auszugsstegs7. Eckschalungselement according to any one of the preceding claims, characterized in that the locking elements (34) in each case by means of a screw (36) or a bolt on the guide (32) of the pull-out web
(30) befestigt sind, wobei die Schraube (36) oder der Bolzen mit seitlichem Spiel durch ein Langloch in dem Auszugssteg (30) geführt ist. (30) are fastened, wherein the screw (36) or the bolt with a lateral clearance through a slot in the pull-out web (30) is guided.
8. Eckschalungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Riegelelement (34) jeweils zumindest an der un- tersten Führung (32) für einen Auszugssteg (30) der Randleiste (16, 18) angeordnet ist. 8. Eckschalungselement according to any one of the preceding claims, characterized in that a locking element (34) in each case at least at the lowest guide (32) for a pull-out web (30) of the edge strip (16, 18) is arranged.
9. Eckschalungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Riegelelemente (34) gleichmäßig verteilt über die9. corner formwork element according to one of the preceding claims, characterized in that the locking elements (34) evenly distributed over the
Höhe des Eckschalungselements (10) angeordnet sind. Height of the corner formwork element (10) are arranged.
10. Eckschalungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es 1,20 m, 2,70 m, 3,00 m, 3,30 m oder 3,60 m hoch ist. 10. corner formwork element according to one of the preceding claims, characterized in that it is 1.20 m, 2.70 m, 3.00 m, 3.30 m or 3.60 m high.
11. Riegelelement für ein Eckschalungselement (10) nach einem der Ansprüche11. locking element for a corner formwork element (10) according to any one of claims
1 bis 10. 1 to 10.
12. Riegelelement nach Anspruch 11, gekennzeichnet durch einen U-förmigen Grundkörper und eine im Grundkörper linear verschiebbare Spannbacke (40) zum Angriff an der Führung (32) eines Auszugsstegs (30) des Eckscha- lungselements (10). 12. A locking element according to claim 11, characterized by a U-shaped base body and a linearly displaceable in the body clamping jaw (40) for engagement on the guide (32) of an extension web (30) of the Eckscha- element (10).
EP18833181.3A 2017-12-15 2018-12-17 Corner shuttering element for shuttering and deshuttering of inner corners Pending EP3724420A1 (en)

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DE102017222868.7A DE102017222868A1 (en) 2017-12-15 2017-12-15 Corner formwork element for forming and removing internal corners
PCT/EP2018/085100 WO2019115823A1 (en) 2017-12-15 2018-12-17 Corner shuttering element for shuttering and deshuttering of inner corners

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WO2019241784A1 (en) * 2018-06-15 2019-12-19 Wilian Holding Company Self-stripping corner form
CN110700584B (en) * 2019-10-25 2021-11-23 曹海峰 Axillary plate and axillary plate connecting system for building
DE102022104469A1 (en) 2022-02-24 2023-08-24 Peri Se REMOVAL DEVICE FOR A FORMWORK ELEMENT

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DE870179C (en) * 1951-11-01 1953-03-12 Rapid Metal Developments Ltd Metal formwork for the production of concrete structures or the like and a method for erecting the same
US3244395A (en) * 1963-06-06 1966-04-05 Rocform Corp Inside corner form and clamp
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DE2200152C3 (en) * 1972-01-04 1983-03-17 Peri-Werk Artur Schwörer GmbH & Co KG, 7912 Weißenhorn Device for forming concrete walls
FR2336531A1 (en) * 1975-12-23 1977-07-22 Abate Robert Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws
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WO2019241784A1 (en) * 2018-06-15 2019-12-19 Wilian Holding Company Self-stripping corner form

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US20210164245A1 (en) 2021-06-03
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