The present application is a 371 of International application PCT/EP2016/079085, filed Nov. 29, 2016, which claims priority of DE 10 2015 223 762.1, filed Nov. 30, 2015, the priority of these applications is hereby claimed and these applications are incorporated herein by reference.
The invention relates to a formwork part for a ceiling formwork, the formwork part having a compensation element. The invention further relates to a ceiling formwork comprising such a formwork part.
It is known to use formwork elements for producing concrete ceilings. In particular frame panel formwork elements, which at least partially form a mold for filling liquid concrete, are used. The formwork elements are removed after the concrete has hardened.
Formwork elements cannot be adapted to any given surfaces. To allow gaps between the formwork elements and a wall to be closed, temporary structures are known which bear a support structure having a formwork shell that is individually customized to the gap.
Accordingly, an object of the present invention is to provide a formwork part which has a compensation element, and which is flexibly adaptable for closing a gap between a formwork element and a wall and is reusable. A further object of the invention is to provide a ceiling formwork comprising such a formwork part.
This object is achieved according to the invention by a formwork part having the features of Patent Claim 1, and by a ceiling formwork having the features of Patent Claims 14 and 15. The subclaims set forth advantageous refinements.
The object according to the invention is thus achieved by a formwork part for a ceiling formwork. The formwork part has a compensation element. The compensation element has a base frame. The base frame has a longitudinal support with a nail strip, to which a compensation element formwork shell of the ceiling formwork is fastenable. The longitudinal support is fixedly connected to a first transverse support and to a second transverse support of the base frame. Within the meaning of the present invention, “fixedly connected” means that detachment of the longitudinal support from the transverse supports is not possible without a tool. The connection may be established by welding, screwing, riveting, or gluing, for example. The compensation element also has an outer support which, in particular in parallel alignment with the longitudinal support, is displaceably guided on the two transverse supports. The outer support has a nail strip for fastening a compensation element formwork shell.
The formwork part according to the invention thus has two nail strips, which are adjustable relative to one another, for accommodating a compensation element formwork shell. The formwork part may thus be adapted to individual existing gaps in a ceiling formwork and reused.
The outer support is preferably displaceably situated on the transverse supports so as to be detachably removable, but not in a reversible manner, from the transverse supports. The outer support which is captively secured to the transverse supports allows compact handling of the formwork part.
The transverse support may be designed for engaging beneath an adjacent formwork element.
The outer support is preferably lockable in various positions relative to the transverse supports.
In another preferred embodiment of the invention, the formwork part has a first center support. The center support may be situated in parallel to the longitudinal support. In particular, the first center support is reversibly detachably connected to the transverse supports. The first center support may have a nail strip for fastening the compensation element formwork shell. The first center support provides an additional support for the compensation element formwork shell when the latter must be installed over a large surface area. In addition, it is possible to remove the first center support, and use it alone as a support for narrow gaps to be closed. That is, the center support is designed in such a way that it is connectable to a support head, even without a base frame.
A first transverse support may have a first transverse support guide strip. The first transverse support guide strip may be used to fasten the first center support and/or the outer support. The first center support and/or the outer support may have a first center support guide strip or a first outer support guide strip, respectively, that engages behind the first transverse support guide strip. The first center support or the outer support may thus be guided on the first transverse support in a structurally simple manner.
In addition, a second transverse support may have a second transverse support guide strip. The second transverse support guide strip may be used to fasten the first center support and/or the outer support. The first center support and/or the outer support may have a second center support guide strip or a second outer support guide strip that engages behind the second transverse support guide strip. The first center support or the outer support may thus be guided on the two transverse supports in a particularly precise manner.
A locking device may be provided on at least one transverse support in order to fix the position of the first center support. The locking device may allow continuous adjustability of the first center support relative to a transverse support. For example, the locking device may be designed in the form of a wedge fastener. The locking device may allow discrete adjustability of the first center support relative to a transverse support. For example, the first transverse support may have multiple first pegging openings into which a first pin, movably situated on the first center support, is insertable, so that the position of the first center support is lockable on the first transverse support.
Furthermore, the second transverse support may have multiple second pegging openings into which a second pin, movably situated on the first center support, is insertable, so that the position of the first center support is also adjustable on the second transverse support, and thus, on the base frame in a particularly precise manner.
The first center support may have support head receptacles to allow the first center support to be fixed to a support head. The support head receptacles may be designed in the form of connecting protrusions which may partially engage behind the support heads. The connecting protrusions are preferably situated or provided on the ends of the first center support, viewed in the direction of the longitudinal axis of the first center support.
The connecting protrusions are preferably provided on sheet metal strips that are situated, in particular welded, in the area of the ends of the first center support, viewed in the direction of the longitudinal axis of the first center support.
The longitudinal support may have support head receptacles. The longitudinal support particularly preferably has connecting protrusions that are able to partially engage behind the support heads. The connecting protrusions are preferably situated or provided on the ends of the longitudinal support, viewed in the direction of the longitudinal axis of the longitudinal support.
The connecting protrusions are preferably provided on sheet metal strips that are situated, in particular welded, in the area of the ends of the longitudinal support, viewed in the direction of the longitudinal axis of the longitudinal support.
The outer support may have support head receptacles. More preferably, the outer support head has support head receptacles in the form of connecting protrusions that are able to partially engage behind the support heads. The connecting protrusions are preferably situated or provided on the ends of the outer support, viewed in the direction of the longitudinal axis of the outer support.
The connecting protrusions are preferably provided on sheet metal strips that are situated, in particular welded, in the area of the ends of the outer support, viewed in the direction of the longitudinal axis of the outer support.
To allow large gaps in the formwork shell to be closed by a compensation element formwork shell, the compensation element may have at least one further center support, which in particular is identical to the first center support. The further center support is preferably reversibly detachably situatable on the transverse supports and/or lockable with displaceability relative to the transverse supports.
The stability of the base frame may be significantly increased when the base frame has a longitudinal connector that connects the transverse supports. The longitudinal connector is preferably oriented in parallel to the longitudinal support.
The formwork part may have a support head. In this case, the compensation element, the first center support, and/or a dual support (see below) are/is connected to the support head. The support head may be partially engaged from behind by a connecting protrusion.
The compensation element formwork shell may be an integral part of the compensation element.
The object according to the invention is further achieved by a ceiling formwork comprising a formwork part and a formwork element described above.
The ceiling formwork may have a dual support, the dual support having support head receptacles on its lengthwise ends. The support head receptacles are preferably designed in the form of connecting protrusions, which in particular are welded on. The dual support has at least one nail strip, in particular two nail strips.
The minimum width adjustability of the compensation element preferably corresponds to the width of the formwork element. The width adjustability of the compensation element is understood to mean the maximum width that is spanned or spannable by the compensation element formwork shell, minus the minimum width of the compensation element that is spanned or spannable by the compensation element formwork shell. For a rectangular formwork element, the width of the formwork element is understood to mean the shorter side of the formwork element in the plane of the formwork shell.
Further features and advantages of the invention result from the following description of several exemplary embodiments of the invention, from the patent claims, and from the figures of the drawing, which show particulars essential to the invention.
The features shown in the drawing are illustrated in such a way that the special characteristics according to the invention may be made clearly apparent. The various features may be implemented in variants of the invention, either singly, or collectively in arbitrary combinations.
In the figures:
The ceiling formwork 10 therefore has formwork parts 26a-c. The formwork parts 26a-c, the same as the formwork elements 14, are supported by ceiling supports 16. In addition, the formwork parts 26a-c, the same as the formwork elements 14, are suspendable at one end in at least one support head 20, and may then be swiveled up from below. This is apparent in
It is apparent from
The longitudinal support 32, the center supports 50a, 50b, and the outer support 36 at their respective lengthwise ends have support head receptacles in the form of connecting protrusions 60a-k, of which only some are provided with a reference numeral in
Considered in an overview of all figures of the drawing, the invention in summary relates to a formwork part 26a-c having a compensation element. The compensation element has a longitudinal support 32, and two transverse supports 30a, 30b that are connected to the longitudinal support 32. An outer support 36 is displaceably situated on the transverse supports 30a, 30b. In addition, at least one center support 50a, 50b may be fastened to the transverse supports 30a, 30b so as to be detachably removable from the transverse supports 30a, 30b. The longitudinal support 32, the outer support 36, and/or at least one center support 50a, 50b preferably have/has at least one support head receptacle at both ends, in particular in the form of a connecting protrusion 60a-k, in particular at least two support head receptacles, preferably in the form of connecting protrusions 60a-k. The connecting protrusions 60a-k may be hooked into ceiling supports 16 of the ceiling formwork 10. The invention further relates to a ceiling formwork 10 comprising such a formwork part 26a-c and a formwork element 14. The formwork element 14 preferably has at least one support head receptacle, in particular in the form of a connecting protrusion 60a-k, that may be hooked into the ceiling support 16 of the ceiling formwork 10. The ceiling formwork 10 may include the ceiling support 16. The ceiling formwork 10 may have a dual support 62.
Number | Date | Country | Kind |
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10 2015 223 762 | Nov 2015 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2016/079085 | 11/29/2016 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2017/093225 | 6/8/2017 | WO | A |
Number | Name | Date | Kind |
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622666 | Burwell | Apr 1899 | A |
20100025563 | Seng | Feb 2010 | A1 |
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2085536 | Jun 1994 | CA |
20318912 | Mar 2004 | DE |
102005031151 | Jan 2007 | DE |
102007021159 | Nov 2008 | DE |
202013104108 | Sep 2013 | DE |
2754778 | Jul 2014 | EP |
2955877 | Aug 2011 | FR |
2000542 | Jan 1979 | GB |
2015042625 | Apr 2015 | WO |
Number | Date | Country | |
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20180334816 A1 | Nov 2018 | US |