KR101777933B1 - Stripping Head and Formwork System - Google Patents

Abstract

The present invention relates to a stripping head which can be connected to or connected to a strut at its lower end and which can be connected to at least one beam and / or panel at its upper end, And / or a wedge that can be positively fastened at least indirectly to the fixing portion 66 of the beam and / or panel and the stripping head so that the panel can be vertically downwardly depressed.
The formwork system has at least one said stripping head and at least one of a plurality of panels and beams, preferably a plurality of panels and beams.

Description

[0001] Stripping Head and Formwork System [0002]

The present invention relates to a stripping head configured to support beams and / or panels of a formwork system and to a molding system having such a stripping head.

In architectural engineering, form panels are used to set up spaces filled with reinforced bars and concrete to create walls and plates of buildings. In particular, the slab panel is usually supported by beams, which are supported by props. So-called stripping heads are used to facilitate removing panels and beams without jeopardizing the work of handling these components of the formwork system.

In this regard, stripping heads with a vertical movable part and a wedge that can move between two positions are known and are in widespread use in practice. In the first position, the wedge supports the dynamic portion at the use position where the concrete is poured on the panels fixed by the stripping head to form a slab. In the second position, the dynamic portion is supported at a height approximately several centimeters below the use position, so that the panels and their supporting beams can be removed after the concrete has been sufficiently cured. However, sometimes panels adhere to newly formed plates, and attempts to remove panels and beams by operators, often of low quality, may result in a hazardous situation.

It is an object of the present invention to provide a stripping head that enables safe and reliable handling of the components of the formwork system, particularly during stripping, i.e. during disassembly of the formwork system.

This object is achieved by the stripping head means described in claim 1.

Thus, the stripping head according to the present invention may be connected to or connected to a prop at the bottom. In other words, the stripping head may be integral with the strut. However, it may be a separate component that can be connected to the strut at the top of the strut.

Furthermore, the novel stripping head can be connected to at least one beam and / or panel at the top. Thus, the beams and / or panels can be supported by the stripping head, and furthermore, the displacement of the wedge in the vertical direction can move the beam and / or the panel vertically and, in particular, and can be positively fastened to the wedge of the stripping head to overcome the sticking force. This vertical variation of the wedge is essentially caused by the horizontal displacement of the wedge and the engagement of the wedge with the fixed portion of the stripping head which converts the horizontal displacement into a vertical displacement. As will be described in greater detail below, this can be achieved, for example, by a suitable ramp or similar inclined surface of the wedge. In either case, the operator does not have to make an effort to remove the dice panels from the newly formed plate. Rather, the horizontal variation of the wedge causes the panels and beams to "come down" to a few centimeters to enable safe removal.

It is noted that the wedge may be fastened directly or indirectly to the beams and / or panels. In other words, one or more intermediate parts may be present between the wedge and the beam and / or panels, such as a clip and / or a plate, which will be described in more detail hereinafter.

Preferred embodiments of the stripping head are defined in the dependent claims.

As already pointed out, a clip with at least one clip recess is presently preferred to at least indirectly clamp the wedge with the beam and / or the panel.

Furthermore, a plate guiding the wedge and guided by the fixed portion of the stripping head may be present between the wedge and the beam or panel. Because the plate acts to transfer the vertical movement of the wedge to the beam and / or the panel, the plate can be moved in a substantially vertical direction by being guided on the stationary part of the stripping head in use of the stripping head.

It has been proven preferable to form at least one key hole in the plate for insertion of the clip when the clip and the plate are present. The inserted clip will engage the beam and / or panel with the plate.

With regard to the fixing part of the stripping head to which the wedge can be fastened, it is presently preferred to form it as at least one horizontally extending projection. These projections preferably have a substantially circular cross-section in order to enable smooth engagement with the inclined or inclined contour of the wedge.

Thus, the wedge preferably has at least one ramp facing the fixed portion for engagement.

It has further proved desirable to form at least one stop on the stripping head that is configured to interact with a portion of the beam to limit the movement of the beam in the longitudinal direction. This allows safe and reliable positioning of the beam during the pouring of the concrete to create the plate as well as the first step of the cracking.

In this connection, at least one stop may be integrated with a guide that guides the wedge in a particularly simple manner, and an integral part providing the mentioned functions may be formed on or through the aforementioned plate have.

The clip preferably has at least one clip indentation configured to receive a wedge and / or plate and / or a portion of the beam and / or panel. As noted above, a clip may be used to connect the plate or strip of the stripping head to the beam or panel. However, the clip may also be used to connect the form panels, in particular the panel adjacent to the panel, usually a flat panel, which will be described in greater detail hereinafter, and the protrusion of the form panel applies the necessary clamping force Can be preferably used.

An L-shape is preferred for the clip, in order to take the clip to the position where the clamping force is applied and to allow it to be particularly rotatable. It should be noted that the indentation is preferably present on one leg of the L-shape, and the remaining legs provide a lever arm for applying the rotational force.

It has been demonstrated that it is desirable to form at least two radial extensions between the clip indentations in the clip, since the clamping force requires an outline to offset the counter force.

Furthermore, it is desirable to form at least one radial extension in the clip that is configured to act as a spacer between the connected dice panels. The form panels may be connected, for example, at 90 degrees, and one form panel may be the panel described above and the connected panel may be a slab panel. As can be seen in the accompanying drawings, when the clip has at least one radial extension that sets the distance between the panels and accordingly the proper contours of the panels themselves and / or the angle between them, Or space can preferably be reliably ensured.

As mentioned above, the present invention also relates to a docking system comprising at least one said stripping head and at least one or preferably a plurality of dice panels and beams.

Moreover, the formwork system has a form that includes a top part with a certain thickness. A recess is present adjacent the top and reduces the thickness adjacent the top. Finally, a projection is projected into the indentation.

It is noted that the new type of dice panel is commonly used as a wall panel, i.e. it is oriented vertically in use. The top portion is such a portion of the panel that indicates the highest point of the panel when the panel is arranged vertically. In this orientation, the thickness extends horizontally. As will be described in greater detail below, the top portion establishes a preferably substantially horizontal surface that is part of a horizontal plane through which concrete is poured to make the plate or ceiling. Since the new panel can be advantageously used as the topmost wall panel and thus contributes to the transition to (horizontally oriented) flat panel panels, the top of the new panel is at its edges, , It can be said that it establishes reputation.

The indent adjacent to the top, which reduces the thickness adjacent the top, enables the panel to be pivoted away from the (newly molded) concrete wall to remove the panel. The pivoting motion is substantially effected with respect to the transition position between the upper end and the indentation having a specific thickness. Finally, the protrusions project into the indentation, allowing the new panel to be connected to and secured with adjacent flat panel panels. Due to the indentation, the pivoting movement for removing the panel can be carried out in a safe manner by an operator with no excessive force or torque and also with a particularly poor quality.

While the new dice panel may be a corner panel, the panel is substantially plate-like, and as a result, when the panel is used as a top-end wall panel, a specific feature that provides the advantages It is desirable to construct a wall panel.

In order to contribute to the safe and easy handling of the panels described herein, it is presently preferred to be made at least predominantly of aluminum. This applies in particular to the structural parts, that is, the areas that provide rigidity and stiffness to the panel. Note that these areas of the panel, which set the surface of the wall to be substantially plate-like and concrete, can be made of wood such as plywood.

In a preferred embodiment, the form panel has an inclined bottom opposite the top portion to facilitate removal of any form panels below the form panel described herein.

The pivoting movement for stripping the panels described herein is more easily carried out by rounded corners which preferably reside at the upper end against the indentations. During the pivoting motion, the edge of the upper end opposite the indentation slides along the newly molded concrete wall, and this movement is significantly smoother by the round corner.

With regard to the indentations and / or the protrusions and / or round corners, they are easily produced by extrusion molding. In particular, an integrated profile with all the aforementioned structural contours may be provided, and the uppermost region of the panel described herein may be formed.

In a preferred embodiment of the form panel with the inclined bottom, it is preferred that the formwork system comprises at least one form panel with a beveled top. The sloped surfaces are preferably complementary to each other and enable reliable stacking to set one side or wall to be formed by the concrete. In addition, as noted above, the tilted structures enable first and foremost stripping, especially with the bottom wall panels. In other words, the new diespan and any flat panel supporting the efficient assembly of the die system in the upper layer in the newly formed layer are finally removed. This is because the lower wall panel can be removed first and then immediately to the upper layer.

To enable one and the same system to be provided for walls with different heights, the formwork system preferably has at least two differently sized wall form panels. In this regard, it should be noted that the new dice panel may have a height corresponding to a normal wall height. However, the new dice panel may have a significantly lower height, and other wall heights may be provided by one or more dice panels having appropriate heights. In particular, in order to ensure easy and reliable handling of the wall form panels, the form panels form the upper end and three or four different form panels form the lower part of the wall so that different wall heights can be realized, Three or four panels may be provided to form a substantial portion of the wall.

Finally, in order to accommodate the higher concrete pressures and corresponding forces present in the lower parts of the wall, in particular in the lower parts of the wall, panels with a small height may be provided, It may preferably have anchors arranged with smaller pitches. Note that the anchors preferably used with the formwork system described herein have an outer sleeve that remains on the concrete wall after they are removed.

As described above, the stripping head and the docking system comprising it according to the invention are particularly advantageous in that they enable the safe and reliable handling of the components of the docking system during stripping, i.e. during disassembly of the docking system .

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described with reference to the preferred embodiments disclosed in the following Figures:
Figure 1 shows the components of the formwork system in use;
Figure 2a shows the transition between the flat panel and the wall panel during removal of the wall panel;
Figure 2b shows the connection between the flat panel and the wall panel of Figure 2a;
Figure 3 shows a clip used to connect panels of the formwork system;
Figure 4 shows a novel stripping head in a first position;
Figure 5 shows the new stripping head in the second position;
Figure 6 shows a new stripping head in a bottom perspective view;
Figure 7 shows a novel stripping head in a second position seen perpendicular to the direction seen in Figure 5;
Figure 8 shows a novel stripping head in a third position at a viewing angle corresponding to Figure 7;

As can be seen in FIG. 1, three or four wall form panels, including the topmost form panel 10, are used to establish a substantially vertical space in which the concrete is poured to form the wall 28. In addition, three or four flat panel panels (30) are arranged substantially horizontally to allow concrete to form the flat panel (32). The flat panel panels 30 are supported by suitable stripping heads 40 and struts 42.

When the concrete of the wall 28 and the flat plate 32 is sufficiently hardened, the wall panels can be removed. This is preferably accomplished by a new dice panel 10 with a sloping bottom 18 and a dice panel with a corresponding sloped top beneath the new dice panel. These structures are first removed by turning the form panel underneath the new form panel 10 away from the wall 28 against the bottom of the panel and then removed from the other form panels < RTI ID = 0.0 > To be removed.

As can be seen in particular in Fig. 2a, the construction of the top of the new dice panels 10 makes this removal considerably easier. This is because the upper end 12 of the form panel 10 has a thickness T that sets the contribution of the new form panel to the face on which the concrete is poured to form the flat plate 32. In order to allow the form panel 10 to be removed without excessive force, an indentation 14 for reducing the thickness adjacent to the upper end is formed below the upper end. This is preferably done with rounded corner 20 opposite to the indent 14 so that the form panel 10 is pivotally rotated or tilted relative to the transition to the flat plate 30, Allowing it to fall from the wall 28 at the lower portion of the dice panel 10. In this inclined state, the form panel 10 can be removed by pulling it substantially vertically downward. The point at which the depression starts below the "full" thickness T of the upper end portion 12 is preferably the same height as the lower end of the rounded corner 20 2a, or may have a height somewhat higher than the end. 1, protrusions 16 protruding into the indentation substantially perpendicular to the thickness direction (from left to right in FIGS. 1 and 2) allow the form panel 10 to be removed from the flat plate 30 by clip means, As shown in FIG.

Fig. 3 shows this clip 22 in a perspective view. The clip 22 is substantially L-shaped and a first annular extension 26.1 extends inwardly of the clip 22 into the key hole To be inserted at a predetermined depth. A second radial extension (26.2) is configured to fasten and receive the projection (16) of the formwork panel (10). The projection 16 will be received within the clip indentation 24 between the extensions 26. Thus, in use, the (short) legs of the clip 22 having the protrusions 26 are positioned in the flat panel 30 at the position facing the form panel 10, indicated at 34 , Into the keyhole (from left to right in FIG. 2A). Then, in the disclosed embodiment, the long legs 22 are brought in a substantially vertical orientation and the second radial projection 26.2 is fastened to the projection 16 of the formwork panel 10 on the side facing the indentation The pivot rotation or rotational force can be applied by means of the long leg means of the clip 22. Thus, the form panel 10 may be connected to or clamped to the flat panel 30, and the assembly of FIG. 1 may be provided.

2A, the indent 14, the protrusions 16, the rounded corners 20 and the upper end 12 are formed into an integrated profile which can be formed by extrusion molding . In addition, the L-shaped and S-shaped portions that provide the necessary reinforcement structure to the form panel 10 may be formed as an integral profile that is part of a reliable formwork panel as previously described. In particular, the integral profile can be formed of aluminum to reduce weight.

The first radial extension 26.1 includes a second radial extension 26.2 which is configured to be complementarily engaged with the indentations to establish a specific position, preferably a clamped or fastened position, of the clip 22, (Ridges: 36) facing each other.

In the embodiment shown, to set the relative positions of the formwork panel 10 and the flat panel 30 at an angle of substantially 90 degrees, a third extension 26.3, opposite the second extension 26.2, The axial length A (along the short legs of the clip 22) is between the end of the flat panel 30 (in Figure 2a, horizontally towards the form panel 10) and the vertical leg 38 of the S- As shown in FIG.

This is additionally disclosed in Fig. 2B, which shows a state in which the flat panel 30 and the form panel 10 are connected by a clip 22 means. The projection 16 of the form panel 10 is received in the clip indentation 24 between the radial extension 26.2 and the radial extension 26.1 as can be seen only in Fig. Furthermore, in the embodiment disclosed to be substantially opposed to the extension 26.2, the radial extension 26.3 extends the distance between the flat panel 30 and the vertical leg 38, The distance of the form panel 10 relative to the form panel 10 is set. This, in conjunction with the fact that the top end 12 of the formwork panel 10 is adjacent to the flat panel 30, ensures a substantially 90 degree angle connection between the two panels.

Note that the clips described above with all the features and embodiments are considered to be separate inventions which preferably enable the connection of dice panels having appropriate keyholes. Thus, the clip may have one or more of the features and embodiments mentioned and should be viewed as a description of the present specification which preferably can be combined with the dice panels and systems described herein.

Figure 4 shows the new stripping head in use in more detail. 6, the novel stripping head 40 includes, in the disclosed embodiment, a stationary pole 50 having a substantially rectangular cross-section with rounded edges Respectively. A static plate 54 is provided at the lower end of the column 50 and is in contact with the prop plate 56 in the state of use shown in FIG. Furthermore, the stripping head 40 has a tubular extension 58 (see FIG. 6) received in the upper portion of the strut 42.

A wedge 48 having a substantially rectangular aperture is movable in the horizontal direction with respect to the static column 50. 6, the horizontal movement of the wedge 48 is provided by a hook 60 formed at the lower end of the plate 62 which is movable along the post 50 only in the vertical direction Guide. As can also be seen in FIG. 6, the plate has keyholes 34 into which the clip 22 of FIG. 3 can be inserted to clamp the beam 44 (see FIG. 4). As can also be seen in FIG. 4, the flat formwork panels 46 are clamped to the beam 44 by other clip means.

As will be described in more detail with respect to FIG. 6, an arrangement comprised of wedges 48, clips 22, plates 62, beams 44, and panels 46 may be, for example, That is, away from the flat plate 32 by a distance B which is a distance from the flat plate 32. This coercive descent is achieved substantially by the positive engagement of the above-mentioned components. In other words, as the wedge 48 moves downward, the hook 60 urges the plate 62 to move vertically downward, and by means of clip 22 clamping the beam 44 to the plate 62, (44) and consequently the plates (46) move downward. Thus, the adhesion between the panel 46 and the beam 44, on the one hand, and the plate 32, on the other hand can be overcome. As shown by the comparison between FIG. 4 and FIG. 5, the downward movement is caused by bringing the wedge 48 horizontally to another position. Horizontal movement of the wedge can be effected, for example, by applying a horizontal force with a hammer.

6, the wedge 48 includes two ramps 64 (not shown) that are not horizontally oriented but form a higher surface at the end of the wedge 48 than the middle of the wedge 48 in the disclosed embodiment ) At the bottom. As a result, when the wedge 48 is moved from the state shown in Figs. 4 and 6 to the right in Fig. 4 and to the left in Fig. 6, the two protrusions 66 (Only one of which is shown in Fig. 6) is engaged with the ramps 64 and the wedge 48 is reliably downwardly depressed. It also takes the components described above, which are securely fastened to the wedge 48, directly or indirectly downward. The clip 22 clamping the beam 44 to the plate 62 may be removed and the plate 62 together with the wedge 48 may be removed from the plate 54 of the stripping head, All of which can be dropped.

Then, after the uppermost die panel 10, in particular, is removed as in FIG. 2A, the flat panel panels 46 may be removed starting with those closest to the wall. To accomplish this, the clips that clamp these plates 46 to the beam 44 are first removed.

FIG. 7 shows that when the stripping head is in the second position disclosed in FIGS. 5 and 7, the beams 44 (two of which are shown in FIG. 7) can not be removed. 5, the beam 44 extends perpendicular to the plane of the drawing, and Fig. 7 shows that the two beams disclosed therein are substantially perpendicular to the viewing direction of Fig. 5 so as to extend from left to right . In particular, they substantially terminate at the top plate 68 of the stripping head and form a substantially strip-like surface with the top plate 68 so that the flat panels 46 are adjacent thereto (See FIG. 4). At the lower portion of the beam 44 there is a beam indentation 70 and a stop 72 extends into it at both the positions of FIGS. 5 and 7 and the position of FIG. In the disclosed embodiment, the stop 72 is formed integrally with the hook 60 that guides the wedge 48 (see FIG. 6).

The stop 72 cooperates with the side wall 74 of the beam 44 so as to limit any movement in the longitudinal direction of the beam 44, i.e. from left to right in FIG. In addition, the side wall 74 is provided with an extension 76 which extends beyond the upper edge of the beam 44, which edge is in contact with the upper plate 68 of the stripping head, And is depressed by the stop 72 toward the top plate 68 in such a position.

As can be seen in FIG. 7, when the stripping head containing the beams 44 is positioned somewhat lower, the extensions 76 are placed on the base plate 78 of the stripping head. In this position, the beams 44 can not yet be removed. This is primarily due to the clips 22 connecting the beams 44 to the plate 62 of the stripping head. In addition, the stops 72 limit the movement of force in the longitudinal direction, which is not necessarily limited by the clips 22.

8, as soon as the clips 22 are removed, the assembly of the wedge 48, the plate 62, the guide 60 and the stop 72 can move to a further lower third position Where the assembly is placed on the static plate 54. The stops 72 do not further limit their movement in the longitudinal direction so that the beams 44 can be removed. Note that the stop 72 and the guide 60 are integrally formed on a substantially C-shaped component arranged to extend through the plate 62.

5, if the right panels of the beam are the flat panel panels closest to the wall, then the left panels of the beam can be removed, Can be dropped as described above, and finally, the struts containing the stripping heads can be pulled out. However, some time may elapse between removing the panels and beams and removing the struts, in order to support a flat plate that is not fully cured at some locations, i.e., where the struts are located.

Claims (24)

A stripping head 40 which can be connected to or connected to a strut 42 at the bottom and which can be connected to at least one beam 44, panel 46 or beam 44 and panel 46 at the top,
The beam 44, the panel 46 and the panel 46 can be moved downward so that the variation of the wedge 48 in the horizontal direction can downwardly push the beam 44, the panel 46, Or a wedge (48) that can be positively fastened at least indirectly to the beam (44) and the fixed portion (66) of the panel (46) and the stripping head (40). The method of claim 1 wherein the wedge (48) comprises a beam (44), a panel (46), or a beam (44) and a panel (46) by means of a clip (22) having at least one clip indentation Wherein the fastening means can be fastened. A wedge (48) as claimed in claim 2, characterized in that the wedge (48) is formed by a plate (62) means guided by a static portion (50) of a stripping head (40) (44), the panel (46), or the beam (44) and the panel (46). The stripping head according to claim 3, characterized in that the plate (62) has at least one keyhole (34) for inserting the clip (22). A stripping head according to any one of the preceding claims, characterized in that the fixing portion (66) of the stripping head (40) extends substantially horizontally. 3. A stripping head according to claim 1 or 2, characterized in that the wedge (48) has at least one ramp (64) facing the fixed portion (66) of the stripping head (40). 4. The apparatus of claim 1 or 2 further comprising at least one stop (72) configured to cooperate with a portion (74) of the beam (44) to limit the movement of the beam (44) in the longitudinal direction ≪ / RTI > 8. A stripping head according to claim 7, wherein the guide (60) for guiding the stop (72) and the wedge (48) is integrally formed. 3. The apparatus of claim 2 wherein the clip has a clip indentation (24) configured to receive a portion of at least one of a wedge (48), a plate (62), a beam (44) Lt; / RTI > 10. A stripping head according to claim 2 or 9, characterized in that the clip (22) is substantially L-shaped. 10. A stripping head according to claim 2 or 9, characterized in that the clip (22) has at least two radial extensions (26) for setting the clip indentation (24) therebetween. The stripping head according to claim 9, characterized in that the clip (22) has at least one radial extension (26.3) configured to act as a spacer between the two form panels (10, 30). At least one stripping head according to claim 1 and at least one of a plurality of panels (46) and beams (44). 14. The method of claim 13, wherein the at least one form panel (10)
A top portion 12 having a thickness T;
An indentation 14 adjacent the upper end 12 to reduce the thickness adjacent the upper end 12; And
Projections (16) projecting into the indentation (14);
Wherein the die system comprises: 15. The formwork system of claim 14, wherein the form panel (10) is in the form of a plate. 16. The formwork system of claim 14 or 15, wherein the form panel is at least partially or entirely aluminum. A molding system according to claim 14 or 15, characterized in that the formwork panel (10) has a lower end (18) which is inclined against the upper end (12). A molding system according to claim 14 or 15, characterized in that the upper end (12) of the formwork panel (10) has a rounded corner (20) opposite the indentation (14). 16. The molding system according to claim 14 or 15, wherein at least one of the indentation (14), the projection (16) and the round corner (20) is formed by extrusion molding. 15. A molding system according to claim 13 or 14, further comprising at least one wall mold panel having a sloped top. 15. The formwork system of claim 13 or 14, further comprising a wall form panel having at least two different heights. 22. The molding system of claim 21, wherein the panels of small height have anchors arranged at a pitch smaller than the panels of the large height. The stripping head according to claim 5, wherein the fixing portion (66) of the stripping head (40) is at least one protrusion having a substantially circular cross section. 14. The formwork system of claim 13, wherein the formwork system comprises a plurality of panels (46) and beams (44).

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