Patent Application
20250012071
The present invention relates to a connection system for wooden elements with a reinforced concrete element of a building according to the preamble of claim 1 and a method using the device according to the invention and a kit according to the invention.
The scope of the present invention is connections between structural wooden elements and structural reinforced concrete elements. A particular problem in this area is that after the reinforced concrete has been poured, either a wooden element must be fastened using a connecting device that penetrates the reinforced concrete or part of the device must be inserted into the concrete formwork before pouring. The second method in particular requires a high level of precision that cannot always be achieved due to the exact tolerances for positioning and fastening are only known after the components have been cast or laid out. This is particularly problematic because in concrete construction the tolerances are in the cm range, while in wooden construction the tolerances are in the mm range.
A one-piece angle is known from EP 2 093 335, in which a first part of the angle is fastened to a surface using connecting means, e.g. screws that penetrate the construction are attached to a surface and a second component is also attached at an angle using screws or nails, creating a connection between the two components.
From the GAH Alberts catalogue, a brace bracket for masts and the like is known, which has a base that can be inserted into a concrete casting, the base has a grooved structure and on this base there is an L-shaped angle with holes for fastening a wooden component, e.g. a wooden post. The problem that arises with the console described is that the console must be positioned precisely and correctly before laying out and subsequent concreting so that all tolerances are adhered to.
From US 20200165812 a system for fastening a concrete foundation is known, which then fixes an additional component. However, there is no system that allows the base to be adjusted after the concrete has been placed. The base is fastened mechanically, which requires access to the fastening area and therefore an opening in the wall for access to the fastening screws and also does not allow compensation tolerances in all directions. The US publication is designed for vertical forces and not lateral forces.
A fastening system for a reinforced concrete base is also known from U.S. Pat. No. 5,375,384, but this system does not allow the base to be adjusted after the concrete has been placed. The base is attached mechanically, which requires access to the attachment area and therefore an opening in the wall to access the screws for attachment and also does not allow for compensation tolerances in all directions.
The US publication is designed for vertical forces, not lateral forces.
The aim of the present invention is to realize a system that allows, in a first step, to position an element forming the seat for the connecting device, and in this way to obtain greater tolerances in positioning before pouring mortar, cement, concrete and the like and thus have the possibility of correcting the position of the connecting device without losses in the strength of the connection between the two components.
This object is achieved by a system according to the invention and a method for producing a connection between two components, one of which consists of reinforced concrete, concrete, mortar and the like and a second consists of wood, with the aid of a system according to the invention.
What is proposed is a connection system consisting of at least two hollow bodies made of metal or plastic, in particular of a tubular and/or rectangular shape, which advantageously have a corrugated outer surface and/or anchoring elements and/or a rough outer surface, which are suitable for being used in a formwork or the like into which concrete, reinforced concrete, mortar or the like is poured. Advantageously, the hollow bodies also have a corrugated/rough inner surface and/or anchoring elements arranged on the inner surface and/or a rough surface. These hollow bodies form the seat for inserting a base made of metallic material according to the invention. The base made of metallic material, which is connected in a preferred manner to a plate and/or an angle, is formed in one piece, the plate and/or angle having holes or connecting elements for connecting the plate and/or the angle to a second wooden component on. The hollow body has a larger horizontal cross section, which allows the base inserted into the hollow body to be moved horizontally by at least 10 mm.
The hollow body can be open on both sides or one-sided, e.g. a tube closed by a lid and/or a casing.
This allows an easy positioning and enough space to choose the final position of the bases.
The device according to the invention comprises at least two bases, each of which is inserted into a hollow body.
The method using the device according to the invention comprises the following steps of inserting or placing an element, which consists of a hollow body with at least one opening, into a formwork. Advantageously, the opening can also be closed with a lid, which can later be removed before inserting the base into the hollow body. Advantageously, this hollow body element has a corrugated and/or wrinkled outer surface and/or anchoring elements, which enables a better connection to the hardening material, e.g. reinforced concrete, concrete or similar, into which it is inserted. Advantageously, this element is a tubular element, which advantageously has a closed bottom.
After inserting at least two hollow bodies and solidifying the material around the hollow body, in a second step at least two bases of the device are each inserted into a hollow body according to the invention.
In a further step, the wooden wall is placed on the plate and/or the angle by placing levelling elements, e.g. wooden blocks, between the wall and the concrete into which the hollow bodies are inserted.
Advantageously, the wooden wall is positioned against the vertical part of the plate and/or angle and placed on the curved part of the plate and/or angle.
After the final positioning of the wooden part, it will be fixed with the device according to the invention using fastening elements, e.g. screws or nails. In a further step, the space between the base and the interior of the hollow body is filled with a hardening material, e.g. B. cement mortar or similar.
The inner surface of the hollow body is also grooved and/or provided with threads and/or folds, which enables a better connection with the hardening material introduced.
The base is connected to a plate or angle or forms a single element with openings or connecting means to connect the plate or angle to a wooden component.
After hardening, levelling elements such as wooden blocks are removed and the gap is advantageously filled with hardening material such as cement mortar or similar.
According to the invention, a kit is also proposed which comprises at least two hollow bodies and a device with a corner/plate with at least two bases for realizing an arrangement according to the invention.
Further features and details emerge from the claims and the following description of the embodiments shown in the accompanying drawing.
4
c shows a connecting part of a further device according to the invention arranged on a component with a reference system in three dimensions.
And
In
During its production, at least two hollow bodies 101 in a tubular and/or rectangular shape, which can have a closed or open bottom, are preferably inserted into the first component 200. In one embodiment, both sides may be closed, with one side being closed by a removable lid. The hollow body 101 has at least one opening at the top and is preferably tubular. The hollow body 101 preferably comprises a corrugated and/or rough outer surface and/or an outer surface with anchoring elements, so that when the component 200 is formed, for example by means of a hardening material casting, for example made of concrete, cement or the like, the material embeds the hollow bodies 101 and solidifies their embedding.
Advantageously, the inner surface of the hollow body 101 is also grooved and/or wrinkled and/or provided with anchoring elements.
The hollow body 101 has a horizontal cross section that is at least 10 mm larger than the horizontal cross section of a part of the base 102 that is embedded in the hollow body 101.
After reinforced concrete, concrete or the like has solidified, the hollow bodies 101 according to the invention form the seat for one base 102, 122 of the connecting device 110, 120. The bases 102, 122 can be inserted into the hollow bodies 101 and moved so that the connecting device 110 shown in
In a second step, the base 102, 122, which is connected to, for example, a T-shaped plate 124 and/or an angle 103, forms the receptacle for the component consisting of at least one wooden part 201. The component 201 is connected to the connecting device 110, for example by screws or by nails arranged on the plate or the angle 103. After attachment, the component 201 comprises at least one wooden part. The connecting device 110 is placed into its final position and aligned so that the second component 201 is also firmly connected to the connecting device 110. The connecting device 110 has at least two bases 102 which are inserted into two different, spaced apart hollow bodies 101.
Levelling elements, e.g. wooden blocks are used to hold the second component in position.
After positioning the second component 201, a preferably expansive hardening compound 204, for example cement, mortar, concrete and the like, is introduced into the interior of the hollow body 121 inside the hollow body 101 and thus fixes the position of the connecting device 110 and thus also the position of the second component 201, which is at least partially formed from wood material. Advantageously, the cavity/gap 203 between the first component 200 and the second component 201 is also filled using filling material and the connecting device 110 after the levelling elements have been pulled out, for example with mortar, concrete, cement and the like.
In the embodiment shown in
In
To connect the at least two components 200, 201 by means of the connecting device 110, 120 according to the invention, the following method is proposed, which comprises the following steps, the order of the steps being able to be changed and some steps being optional and/or alternative:
According to the invention, a kit is also proposed which includes at least two tubular or rectangular hollow bodies 101 with an outer and inner corrugated and/or folded surface and/or anchoring elements, a connecting device 110, 120 with at least two feet 102, 122 and hole locations for inserting fastening elements, such as screws, nails and pins.
An angle 321 is shown in
Numerous variants and suggestions can be provided for the scope of protection of the subject matter according to the invention and according to the following claims. The order of the individual steps of the method according to the invention can be varied without going beyond the scope of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102021000031790 | Dec 2021 | IT | national |
| 102022000024291 | Nov 2022 | IT | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2022/086280 | 12/16/2022 | WO |
