NL1016607C2 - Positioning anchor for rim shuttering, has frame supporting press parts and L shaped brackets acting as anchor parts - Google Patents

Abstract

The shuttering includes adjustable press parts which extend substantially parallel to the floor element (3) and are supported by the anchor frame. The press parts exert a force upon the shuttering in a direction at right angles to the pressure acting against the rim edge (12) of the floor element. The anchor parts comprise a substantially L-shaped bracket, preferably made from steel, the first leg being designed to lie on top of the floor element, and the second leg being designed to extend vertically downwards to hook behind a rim edge of the floor element. The anchor comprises a frame for supporting on a floor element with a rim edge, and anchor parts for fixing the frame to the floor element. Independent claims are also included for (a) the use of the anchor for positioning and preferably fixing a rim shuttering, (b) the use of several (preferably 2-4) of these anchors for positioning and preferably fixing a rim shuttering, and (c) a method for positioning a rim shuttering, by placing two or more of these anchors along the rim edge of a floor part, placing the shuttering on contact with the anchors, adjusting one or more of the anchors in order to position the shuttering, and fixing the shuttering into position.

Description

STEL ANCHOR FOR A CIMBOARD FORM AND USE OF SUCH STEL ANCHOR AND A METHOD FOR POSING

FROM A KIMBOARD.

5

According to a first aspect, the present invention relates to an adjusting anchor for a casing formwork comprising a frame for support on a floor element with a crimping edge and anchoring means for anchoring the frame to the floor element.

In the construction of houses, it is customary, in particular when using the so-called tunnel construction, to lay a horizontal foundation beam on the vertical foundation columns on which floor elements, in particular Prefab floor elements, are supported while leaving a gap between them. If a wall then has to be erected on the horizontal foundation beam, above the gap between the floor elements supported on both sides, the so-called concrete kim is generally poured in situ. This kim lies in the gap between the floor elements supported on either side of the horizontal foundation element and generally protrudes over some distance therefrom. In particular for the part of the kim protruding above the floor elements 20, a kim formwork is required. The casing casing consists essentially of two parallel hollow or solid beams, often made of steel that have a mutual distance corresponding to the (horizontal) thickness of the kim to be formed. The distance between the formwork beams is usually adjustable by means of fixable adjusting means, but can also be permanently fixed. Such casing forms, in which the adjusting anchor according to the invention can be used in particular, must be accurately positioned, wherein one formwork beam rests on the floor elements resting on the horizontal foundation element from one side and the other foundation beam on the floor elements resting on the other side that foundation element rests supporting floor elements. In addition, the casing casing 30 must be fixed in such a way that it does not shift, or at least with difficulty, when it is pushed against this.

The conventional way of setting and fixing a cymbal casing is to fix bobbins on either side of the cymbal casing by means of nails in the floor elements, the cymbal casing then being located between those bobbins to be held in place by those bobbins. Placing or fixed nailing of the bobbins is relatively labor-intensive, certainly when this has to be done accurately, and moreover the nailed bobbins must be removed again before, simultaneously with or after the removal of the casing formwork. This removal of the nailed bobbins is also labor-intensive. The nailed bobbins furthermore have the drawback that the fixation and positioning of the casing formwork leaves this to be desired in practice in terms of reliability.

Yet another way of positioning and fixing the casing casing is the use of casing anchors, which are placed on either side of the casing casing in the seams between the transversely adjacent floor elements. Such kimankers can slide relatively easily into the seams extending transversely to the formwork beams and moreover such kimankers must be removed after the kim have been formed.

An anchor of the type mentioned at the outset is known from US 3,207,465. This is an anchor for foundations of buildings without a basement. The concrete here is poured directly into the ground and the anchor is placed directly on the ground instead of, as the invention in particular aims, on a floor element. The adjusting anchor according to US 3,207,465 consists of a horizontal beam (14) with at each end a pin carrier and in between two shelf supports (23) adjustable along the beam (14). The pins (20) on the pin carriers are inserted in the ground and then fixed to the beam (14) by means of screws (22). The disadvantage of the anchor known from US 3,207,465 is that it cannot be used as a base where no pins can be inserted. The surface must be soft, so that the pins can be driven into the surface. This makes the anchor unsuitable for hard surfaces, such as concrete floor elements.

The present invention has for its object to provide an adjusting anchor for a cimbing casing, such as a cavity casing, which adjusting anchor overcomes the aforementioned disadvantages, at least at least a number thereof.

According to the invention, the aforementioned object is achieved by providing a set anchor for a coffin casing, such as a cavity casing, comprising: • a frame for support on a floor element with a crimping edge, 1016607 3 • carried by the frame, essentially parallel to the floor element adjustable pressure means for exerting a compressive force acting in the direction transverse to the crimping edge of the floor element, and anchoring means for anchoring the frame to the floor element.

Positioning the adjusting anchor according to the invention is considerably facilitated and simplified by providing the adjusting anchor with pressure means, which are adjustable parallel to the floor element and at least when using anchoring means, for exerting a clamping casing in a direction transverse to the kim edge of the body. pressure element effective floor element. By adjusting the pressure means it is possible to adjust the adjusting anchor or the adjusting anchors in case more than one is used so that the casing formwork is exactly in place. This adjustment of the adjusting anchors, respectively, can be done before the kimbekisting is placed, but also after the kimbekisting has been placed. By means of the adjustable pressure means it is possibly possible to slightly shift the casing casing at least in the pressure force direction for a fine positioning. In order that the adjusting anchor remains in place, anchoring means are provided for anchoring the adjusting anchor, at least the frame thereof, to the floor element. These anchoring means can for instance comprise pins or bolts which are inserted or screwed into the pin or bolt holes formed in the floor elements.

According to the invention, however, it is particularly preferred if the anchoring means comprise a substantially L-shaped bracket, preferably made of steel, the first leg of which is intended to lie on the floor element and the second leg of which is intended to extend vertically to hooking downwards behind a crimping edge of the floor element. Such anchoring elements can optionally be permanently attached to the frame of the adjusting anchor, wherein the frame can be adjustable parallel to the floor element, entirely within the scope of at least claim 1 and / or 2, relative to the anchoring means. A great advantage of such an L-shaped bracket is that it allows the adjusting anchor to be placed easily and, moreover, when using the adjusting anchor, the second leg prevents this adjusting anchor from shifting opposite to the direction of the pressure force exerted thereby on the casing. The L-shaped bracket moreover has the advantage that it, at least the first leg thereof, is held against the floor element by the formwork beam resting on it after placement of the casing formwork.

In order to be able to easily remove the adjusting anchor after forming the kim, possibly without the formwork beams having been removed, it is preferred according to the invention if the first leg of the L-shaped bracket and the frame of the adjusting anchor are provided with coupling means for mutually releasable coupling of the frame and the first leg.

Such coupling means can be realized in a very advantageous manner according to the invention when the coupling means comprise a hook provided on the upper side of the first leg 10 with a hook opening opening towards the crimping edge of the floor element and when the frame accommodates a hook of the floor opening. kimrand signposting hook member. The frame carrying the pressure means can thus easily be inserted into the hook opening with its hook member and the combination of hook aperture and hook member provides an assembly when exerting a compressive force on the casing casing which can jointly absorb the reaction force experienced thereby. The assembly of hook opening and hook member is moreover very easy to connect and disconnect.

According to a further advantageous embodiment of the adjusting anchor according to the invention, the frame has a first and second support foot, the first support foot 20, viewed in a direction parallel to the floor element, is located below the support location where the frame carries the pressure means or for that support location, that is, on the crimping side of that carrier, and the second supporting foot, viewed in a direction parallel to the floor element, is located behind that carrier, i.e. on the side of that carrier remote from the crimping edge. By providing a first and second supporting foot, possibly a third supporting foot that is not aligned with this, it is ensured that the frame can be reliably stably supported on the floor element, which can have an uneven upper surface. By providing that second support foot behind the support location, it is moreover prevented that the adjusting anchor tilts away from said killing casing when exerting pressure on the casing casing.

In particular with a view to counteracting the aforementioned tilting, it is preferable according to the invention if the vertical distance between the support location and the second support foot is less than or equal to the horizontal distance between the support location and the second support foot.

With a view to constructional simplicity, easy operability and reliable operation, it is preferred according to the invention if the pressure means comprise a screw spindle with external screw thread running substantially parallel to the floor element, which screw spindle is supported in a bore provided in the frame with mating internal thread. In such an embodiment it is particularly advantageous if the screw spindle is provided at the end facing the buckle edge with a pressure plate which is attached to that end of the screw spindle by means of a ball joint. Such a pressure plate pivoting according to a ball joint is assured and a good engagement surface and a pressure distribution on the shuttering beam, while the shuttering beam can assume an oblique, at least 90 ° deviating position with respect to the spindle.

According to a second aspect, the present invention relates to the use of an adjusting anchor according to the invention for setting and preferably also fixing a formwork, such as a cavity casing formwork.

According to a third aspect, the invention relates to the use of a plurality of, in particular two, three or four, anchors according to the invention for setting and preferably also fixing a casing casing, such as a cavity casing casing. Both in the second and in the third aspect of the invention, it is advantageous if the casing form comprises two formwork beams which are mutually fixed, at least fixable, and run essentially parallel.

According to a fourth aspect, the invention relates to a method for setting a casing casing, such as a cavity casing, comprising the following steps: a) placing at least two adjusting anchors according to the invention along a casing edge of a floor part; b) placing the casing casing in abutment against those two anchors; c) positioning of the casing casing by positioning both or one of the two anchors; and d) fixing the casing casing after it has been positioned.

Such a method can be carried out quickly and efficiently in terms of time effort.

1016607 6

In the method according to the invention, it is particularly advantageous for reasons already stated above if an adjusting anchor with anchoring means in the form of a so-called L-shaped bracket is used for step a) and if after step a), at least after placing the L-shaped brackets perform step b) 5 by placing the casing casing, at least a part thereof, over the top of the first leg of the L-shaped brackets, and then, as far as is still necessary, the frames of connect the adjusting anchors to the L-shaped brackets. The casing forms keep the L-shaped bracket with the first leg pressed flat against the floor element.

It is furthermore particularly advantageous in the method according to the invention if one or two further adjusting anchors according to the invention are used for step d). The adjusting anchors used in step a) are then mainly used for positioning, wherein the casing casing is then applied to said adjusting anchors or, conversely, the adjusting anchors are placed against the formwork and one or two further adjusting anchors are then used in step d) to hold that cymbal casing in place between two anchors on one side and one or two anchors on the other side. It will be clear that it is of further advantage here if one also in step d. adjusting anchors used wherein the anchoring means comprise a substantially L-shaped bracket.

In the method according to the invention, it is furthermore advantageous if, after steps a), b), c) and d), in a step e), the cymph is formed by pouring or pouring concrete mortar into the cymbal formwork, and when after step e) in a step f) removes the casing formwork, or removes frames from the adjusting anchors and leaves the L-shaped brackets as lost brackets. It is still further advantageous if after step f) in a step g) a applies the screed to the floor part and absorbs the lost L-shaped brackets. The L-shaped brackets are then hidden from view, at least no parts protruding from the floor. When the L-shaped brackets form so-called lost brackets, it is preferred according to the invention to manufacture them from a cheap material such as steel, in particular raw steel. That the L-shaped bracket exhibits or may start to exhibit rust is not a problem with this application.

10 1 FOOT

7

The present invention will be explained in more detail below with reference to an exemplary embodiment schematically shown in the drawing. It shows:

FIG. 1 is a schematic perspective view of an exemplary configuration in which the adjusting anchor according to the invention is applied;

FIG. 2 is a side view of an adjusting anchor according to the invention according to a first embodiment of the invention;

FIG. 3 an adjusting anchor according to a second embodiment of the invention; and

FIG. 4 is a schematic top view with a representation of two modes of application of the adjusting anchor according to the invention.

In FIG. 1 are indicated by 1 vertical foundation columns, with 2 a horizontal foundation beam, with 3 floor elements, in particular Prefab floor elements, with 4 the cladding beams, with 5 a kim, at least the poured concrete therefor, with 6 a cavity wedge which after hardening of the kimbeton in vertical upward direction can be removed, with 7 concrete bars for forming a connection with the wall to be poured on top of the kim 5 later, in the present example a cavity wall, with 8 tubes mounted on a kimbekstarting beam, with 9 a wall mounted by connecting bridge slidable by the tubes 8, with height-adjustable legs on the connecting bridge 9 for the level adjustment of the casing beams 4, with 11 securing pins, preferably securing bolts, for fixing the casing beams 4 to the connecting bridge 9, and with 12 the kim edge of a floor element 3 facing the kim 5. The sleeves 8, which are slidable along the connecting bridge 9 and the locking pins 11 make it It is also possible to adjust the mutual distance between the kimbing beams 4 in a fixed manner according to the desired kim thickness D. Furthermore, the cavity wedge 6 is suspended from the connecting bridge 9 by means of supporting bolts 13. As may be clear, it is also possible to provide the cavity wedge 6 with transverse members extending parallel to the connecting bridge 9 and free to rest on top of the casing beams 4. In the configuration described here it is in connection with a correct dimensioning of the structures to be built. house of importance that the cavity formwork beams 4 are correctly positioned, both with regard to their horizontal location and with regard to their orientation in the horizontal plane. It is customary here to enclose the cavity formwork beams 4 between spools fixed with nails. The invention provides for replacing such nailed spools of anchors 20 as shown in FIG. 2 or the adjusting anchor 20 shown in FIG. 3, the adjustable anchor 40 shown. It will be clear that the adjusting anchors according to the invention are not only located in a position shown in FIG. 1, but also in other configurations, for example a configuration in which the foundation columns 1 and foundation beam 2 have been replaced by an underlying wall.

FIG. 2 schematically shows an adjusting anchor 20 according to a first embodiment. This adjusting anchor 20 is composed of a frame 21, pressure means 25, 26, 27, 28 and 29 carried by the frame 21 and anchoring means 33.

The frame 21 has a front foot 23, relatively close to the crimping edge 12, and a rear second foot 22, relatively further away from the crimping edge 12. The frame 21 is supported by means of the first foot 23 and the second foot 22 the substrate, wherein the second foot 22 directly rests on the floor element 3 and the first foot 23 indirectly rests on the floor element via an L-15-shaped hook 33 to be described later. The frame 21 is generally constructed from a horizontal leg 30, a vertical leg 32 and a support body 31 supporting the vertical leg 32 against deflection in the direction of the second foot on the horizontal leg.

The pressure means comprise a screw spindle 26 with external screw thread which extends through a tubular member 29 with mating internal screw thread. At the end of the screw spindle 26 that faces the buckle edge 12, a pressure plate 27 is provided via a ball joint 28, which plate is intended for contacting under pressure against a kimb casing beam 4. At the opposite other end of the screw spindle 26 a hexagonal body 25 is provided on which a spanner fits. By means of such a spanner, the screw spindle 26 can then be rotated such that the pressure plate 27 is moved in the direction of the crimping edge 12 for the purpose of exerting pressure or is possibly moved away from the crimping edge 12 in the opposite direction.

The L-shaped hook consists of a first leg 34 which, in use, can lie flat on the floor element 3 and a second leg 35, which, when used, hooks behind the crimping edge 12. The first leg 34 is provided with a hook 36 at the end remote from the second leg 35. The hook 36 opens in the direction of the buckle edge 12. The first foot 23, which for this purpose is designed as a hook member pointing away from the buckle edge 12, can be received in the hook opening enclosed by hook 36. As will be clear 1016607 9, the hook 36 with hook opening and with hook member / first foot 23 enable a simple coupling between the L-shaped bracket 33 and the frame 21. When the screw spindle 26 is tightened and pressure is exerted on a bottom casing beam 4, this coupling will engage more firmly. When the kim 5 has been cast and the screw spindle 26 has been loosened, the frame 21 can be disconnected from the L-shaped hook, whereafter the L-shaped hook can remain as a lost hook and afterwards when the finishing layer is poured onto the floor element 3. this finishing layer can disappear.

FIG. 3 shows a second exemplary embodiment of an adjusting anchor 40 according to the invention. For parts corresponding to the adjusting anchor 20, the same reference numbers are incremented by 20.

The difference between the adjusting anchor 40 according to FIG. 3 and adjusting anchor 20 according to FIG. 2 is primarily situated in the shape of the frame 41. The horizontal leg 30 (Fig. 2) has, as it were, fallen and the supporting body 31 (Fig. 2) is shown in Figs. 3 continued (see number 51) up to the second foot 42. In the second instance, the difference between the adjusting anchor 40 according to FIG. 3 and the adjusting anchor 20 according to FIG. 2, which second difference can also be entirely independent of the difference in shape of the frame, provided with additional anchoring means 58. These additional anchoring means 58 can be used in addition to the L-shaped hook 33/53 but also as a replacement for / for the L-shaped hook 33/53. The additional anchoring means 58 actually consist of one or more pins, optionally in the form of screw bolts. The pins 58 can be received in pin holes 57 formed in the floor element 3 which, in the case of a screw bolt 58, are provided with internal mating screw thread, in particular a sleeve with internal mating screw thread.

FIG. 4 shows very diagrammatically in plan view a method of application of three or four adjusting anchors 20 according to the invention. First, the set of anchors 20 are placed on the right-hand side of the right-hand casing beam 3 and adjusted so that the casing beam 3 is correctly positioned. Prior to the adjustment 30 of the adjusting anchors 20 or optionally thereafter, or during the adjustment thereof, the adjustable legs 10 on the connecting bridges 9 can be adjusted for leveling the cage casing beam 4.

1 0 1 660 '? 10

Preferably prior to placing the kimbo-form beams 4 in the vicinity of the kim to be formed, these will be fixed relative to the connecting bridges 9. This means that after positioning of the right-hand casket bar 4, the left-hand casket bar 4 will also be correctly positioned. The right-hand casing casing bar 4 and left-hand casing casing bar 4 can now be fixed by placing one or more further anchors 20 on the left-hand side of the left casing casing bar. With one left-side anchor 20, this will preferably be placed approximately in the middle of the right-hand anchor 20. With two left-hand anchors 20, they will preferably be placed approximately opposite the right-hand anchors 20. The latter situation is indicated by the left-hand anchors 20 shown in broken lines. It will be clear that in the embodiment according to FIG. 4 adjustable anchors, such as adjustable anchor 40, can also be used.

As will be apparent to a person skilled in the art, many variants are conceivable for the adjusting anchors according to the invention outlined above, as well as variants for the methods to be used therewith, which adjusting anchor variants and method variants all fall within the scope of the conclusions. As will be readily apparent, the adjusting anchor is, inter alia, very well applicable in forming a cavity, but it is - see Figs. 1 - also very well possible to omit the cavity wedge 6 and to form a kim 5 without cavity.

1018607

Claims (17)

Claims 1. An anchor for a casing casing, comprising: a frame for support on a floor element with a casing edge and anchoring means for anchoring the frame to the floor element, characterized in that the casing casing further comprises carrying the frame, substantially parallel to the pressure element adjustable pressure means for exerting a pressure force acting in the direction transverse to the edge of the floor element on the cymbal formwork, and that the anchoring means comprise an essentially L-shaped bracket, preferably of steel, the first leg of which is intended to to lie on the floor element and the second leg of which is intended to hook vertically downwards behind a crimping edge of the floor element. 2. Adjusting anchor as claimed in claim 1, wherein the first leg and the frame are provided with coupling means for mutually releasable coupling of the frame and the first leg. 3. Adjusting anchor as claimed in claim 1 or 2, wherein the coupling means comprise a hook provided on the upper side of the first leg with a hook opening opening towards the crimping edge of the floor element, and wherein the frame accommodates a point that can be received in the hook opening and points away from the crimping edge. hook member. 4. Adjusting anchor according to claim 1, wherein the anchoring means comprise one or more pins, such as screw bolts, and one or more pin passages formed in the frame for those pins. 5. Adjusting anchor according to any one of the preceding claims, 30. wherein the frame has a first and a second support foot, wherein, viewed in a direction essentially parallel to the floor element, the first support foot is located below the support location where the frame carries the pressing means or for that support site, ie on the kimrand side of that support site, and 5 'f', -n 'is W is ϋύ Ü ft • where, viewed in a direction essentially parallel to the floor element, the second support foot is located behind that support site , ie on the side of the carrier remote from the kimrand side. The adjusting anchor as claimed in claim 5, wherein the vertical distance between the support location and the second support foot is less than or equal to the horizontal distance between the support location and the second support foot. 7. Adjusting anchor as claimed in any of the foregoing claims, wherein the pressing means comprise a screw spindle with external screw thread running substantially parallel to the floor element, which screw spindle is supported in a bore with mating internal screw thread provided in the frame. 8. Adjusting anchor as claimed in claim 7, wherein the screw spindle is provided at the end facing the bilge edge 15 with a pressure plate which is fixed to the end of the screw spindle by means of a ball joint. Use of a setting anchor according to any one of the preceding claims for setting and preferably also fixing a casing form. 20 Use of a plurality of, in particular two, three or four, anchors according to one or more of claims 1-8 for setting and preferably also fixing a cage casing. 11. Use as claimed in claim 9 or 10, wherein the casing formwork comprises two formwork beams which are mutually fixed, at least fixable, and run essentially parallel. 12. A method for setting a cage casing, comprising the following steps: a) placing at least two adjusting anchors according to one or more of claims 1-8; b) placing the casing casing in abutment against those two anchors; 1016607 i (c) positioning the casing casing by positioning both or one of the two anchors; and d) fixing the casing casing after it has been positioned. A method according to claim 12, wherein an adjusting anchor according to at least one of claims 1-3 is used before step a), and wherein step b) is carried out after step a), at least after placing the L-shaped brackets to place cage casing, at least a part thereof, over the top of the first leg of the L-shaped brackets, and then, insofar as is still necessary, the frames of the adjusting anchors are coupled to the L-shaped brackets. A method according to claim 12 or 13, wherein one or two further adjusting anchors according to any one of claims 1-8 are used for step d). A method according to claim 14, wherein one or two further adjusting anchors according to at least one of claims 1-3 is used for step d), and wherein at least the L-shaped bracket (s) of the (further) additional adjusting anchor (s) are placed prior to step d. A method according to claim 13 or 15, wherein the step is formed after steps a) -d) in step e) by pouring or pouring concrete mortar into the casing form, and wherein step after step e) is formed in a step f) removes the casing formwork, removes the frames from the adjustable anchors, and leaves the L-shaped brackets as lost brackets. 25 A method according to claim 16, wherein after step f) in step g) a screed is applied to the floor part and the lost L-shaped brackets are received therein. 1016607