Reusable inner lining for metal formwork

Abstract

The present invention relates to a reusable inner lining for metal formwork comprising a covering element (1) formed by a sheet with parallel fold lines defining a series of faces and fastening elements (3) for fastening to the formwork.

Description

[0001] DESCRIPTION

[0002] Reusable interior lining for metal formwork

[0003] OBJECT OF THE INVENTION

[0004] The invention, as the title of this descriptive document states, is a reusable interior lining for metal formwork. It is an innovation that offers advantages previously unknown within current techniques.

[0005] TECHNICAL SECTOR

[0006] The present invention falls within the sector of fixed constructions, in buildings, especially in molds, formwork, tools or accessories for construction, or their use, handling of construction materials on the construction site, repair, demolition or other work on buildings specifically constructed in constituent parts.

[0007] STATE OF THE ART

[0008] The present invention arises from the need to preserve in optimal condition the metal formwork used in the construction of concrete pillars, avoiding the accumulation of waste and premature wear of the equipment.

[0009] During the construction process, liquid concrete is poured into the formwork, where it takes shape until it sets. Once hardened, the formwork must be dismantled and cleaned before its next use, a task that, being done manually, is laborious and consumes a considerable amount of the workers' time.

[0010] If this maintenance is not carried out properly, the formwork can become dirty and deformed when trying to fit it after each use, which affects its functionality and generates premature wear of the material.

[0011] Accordingly, this invention presents a reusable inner lining for metal formwork that offers a solution acting as a barrier between the concrete and the formwork, simplifying the cleaning process and extending the service life of the formwork equipment. Currently, no reusable inner lining for metal formwork is known to exist that presents structural and constitutive technical characteristics equal or similar to those described in this specification, as claimed.

[0012] DESCRIPTION OF THE INVENTION

[0013] The object of the present invention is the creation of a reusable interior lining for metal formwork that provides a notable innovation within its field of application in the current state of the art, the characterizing details that make it possible being conveniently included in the final claims that accompany this description.

[0014] The invention describes a reusable interior lining for metal formwork comprising a lining element, a sheet, designed to fit inside the metal formwork and act as a barrier between the concrete and the formwork, preventing concrete adhesion and improving the aesthetic finish of the resulting column. This lining element includes fasteners that secure its position and facilitate its installation within the formwork, ensuring efficient and prolonged use of the system through multiple construction cycles.

[0015] This invention solves the problem of the laborious and costly cleaning of the metal formwork used in the construction of concrete pillars, and also prevents possible structural damage to the formwork resulting from prolonged use.

[0016] By incorporating a reusable inner lining that acts as a barrier between the concrete and the formwork, it prevents the concrete from sticking, which in turn eliminates the need for subsequent cleaning of the formwork.

[0017] Furthermore, this coating facilitates the proper fit of the formwork in subsequent uses, preventing wear and premature deformation caused by attempts to force dirty formwork. This optimizes maintenance time and costs, ensuring greater efficiency in the construction process.

[0018] The covering element is manufactured by a pre-molding process, adopting a rectangular shape that offers sufficient length and features thin walls, and where several folding lines are defined. The preferred design includes five faces differentiated by the folding lines, forming an open element when not in use, which facilitates its transport.

[0019] In its use situation, the covering element is closed by overlapping the fifth face over the first, and using closing means, which ensures the containment of the concrete poured inside, collaborating effectively with the closing means to guarantee stability.

[0020] This arrangement has the advantage of minimizing the reduction in pillar thickness, while allowing for comfortable, practical, and quick maneuvering during placement.

[0021] The closing means consist of elements such as hook and loop tapes or magnetic strips, which are strategically placed at specific points on the open edge of the covering element.

[0022] These sealing methods ensure that the element remains sealed within the formwork during the concrete pouring process, preventing any unwanted leakage.

[0023] This coating element is manufactured with materials that possess specific characteristics, such as impermeability, flexibility, resistance and ease of cleaning, making it suitable to withstand multiple uses without deteriorating.

[0024] A representative example of this material is plastic, which provides optimal durability while being easy to maintain.

[0025] The preferred fastening elements consist of angled extensions located at the ends of the covering element, which have holes that allow their insertion into the formwork studs.

[0026] These fixing elements prevent the covering element from slipping during the pouring of concrete, ensuring its correct placement and preventing movements that could affect the setting process.

[0027] The cladding element also includes printed markings that provide reference data, such as pillar measurements or standard heights used in construction. These markings facilitate the installation and alignment of the device within the formwork, improving accuracy and reducing the time required for its placement.

[0028] Furthermore, the cladding element is available in various dimensions, allowing it to adapt to different structural configurations. The fold lines can be bent just before placement in the formwork, so the only truly variable aspect is the width of the cladding element.

[0029] Depending on the shape of the folding lines, the options include brackets with straight, rounded or 45-degree corners, making this system applicable to both pillar and wall construction, adapting to the specific needs of each project.

[0030] To use this invention, the inner lining is inserted into the metal formwork before the concrete is poured, preventing adhesion and simplifying cleanup. The weight of the concrete will ensure that it rests on the inner surface of the formwork. If necessary, folds will be made along the fold lines just before placing them in the formwork.

[0031] The design allows the lining to remain stable when closed with its locking mechanisms, preventing unwanted openings and leaks.

[0032] Its manufacture in waterproof, thin and flexible material guarantees durability and reuse, being easy to clean as it is a flat surface, in addition to quick installation thanks to the reference marks included.

[0033] Adaptable to different formats, this coating protects the formwork from damage, optimizing both maintenance time and the quality of finishes on pillars.

[0034] EXPLANATION OF THE FIGURES

[0035] To complete the description being made and in order to help in the better understanding of the characteristics of the invention, this descriptive report is accompanied, as an integral part thereof, by figures in which, for illustrative and non-limiting purposes, the following has been represented. Figure 1 shows a perspective view of the reusable interior lining for metal formwork, unfolded.

[0036] Figure 2 shows a perspective view of the reusable interior lining for metal formwork, in use condition.

[0037] Figure 3 shows another perspective of the reusable interior lining for metal formwork, in use condition.

[0038] PREFERRED EMBODIMENT OF THE INVENTION.

[0039] The reusable interior lining for metal formwork is configured as a covering element (1), designed to fit precisely inside a metal formwork, acting as a barrier between the concrete and the formwork. This lining prevents the concrete from adhering to the formwork, facilitating its removal once it has set, and also provides a superior aesthetic finish to the concrete column or wall. The covering element (1) incorporates locking means (2) and fastening elements (3) that ensure its stable position and facilitate its installation during the construction process.

[0040] In a preferred embodiment, the cladding element (1) is a sheet manufactured by a pre-molding process, adopting a rectangular shape of suitable length and with thin walls. This element has parallel fold lines that define a pattern of faces, according to the shape of the column or wall. In a preferred embodiment, it has five faces, forming an open element that can be laid flat, facilitating transport in its resting state. In its use, this cladding is closed by overlapping the fifth face over the first, thus ensuring the containment of the concrete poured inside and working effectively with the enclosure means (3). This arrangement not only minimizes the reduction in column thickness but also allows for convenient, practical, and quick handling during use.

[0041] Alternatively, the cladding element (1) is made of a waterproof, flexible, and durable material suitable for repeated use without losing its properties. Furthermore, this material must be easy to clean, allowing for reuse in various projects. Plastic is an example of a suitable material due to its durability and ease of maintenance. Preferably, the fastening means (2) include elements such as hook-and-loop fasteners or magnetic strips, which are positioned at specific points on the open edge and faces of the cladding element (1). These mechanisms ensure the cladding element is securely closed within the formwork, guaranteeing that the poured concrete does not cause unwanted displacement of the cladding during the curing process.

[0042] Typically, the cladding elements (2) are arranged vertically, parallel to the fold lines, which in turn are parallel to the longitudinal direction of the column. This makes the mark left in the concrete less noticeable, remaining only on one side of the column. The mason can then align it with the least visible side of the column once the building is constructed, so as not to disrupt the aesthetics.

[0043] In another embodiment, the closing means (2) are a tongue and groove joint.

[0044] Preferably, the fastening elements (3) consist of angled extensions located at the ends of the covering element (1), which have holes designed to be inserted into the formwork pins. This fastening system prevents slippage of the covering during concrete pouring, ensuring the correct position of the covering element (1) and maintaining the stability of the concreting process.

[0045] In another preferred embodiment, the cladding element (1) may include printed markings with reference data, such as standard column dimensions or common heights used in construction. These markings facilitate the installation and alignment of the device within the formwork, improving the accuracy of the work and reducing installation time.

[0046] Generally, the cladding element (1) can be arranged in various dimensions, including options with straight, rounded, or 45-degree corners, depending on the shape of the fold lines. This versatility allows its application in different structural configurations, such as columns, adapting to the specific needs of each project and providing efficient solutions for various types of construction.

[0047] Having sufficiently described the nature of the present invention, as well as the manner of putting it into practice, it is not considered necessary to make its explanation more extensive so that any expert in the field may understand its scope and the advantages that derive from it, it being noted that, within its essentiality, it may be put into practice in other modes of embodiment that differ in detail from the one indicated as an example, and which will also achieve the protection sought provided that its fundamental principle is not altered, changed or modified.

Claims

CLAIMS 1. Reusable interior lining for metal formwork, characterized by comprising a covering element (1), formed by a sheet with parallel folding lines that define a series of faces and fixing elements (3) to the formwork.

2. Reusable interior lining for metal formwork, according to claim 1, characterized in that the lining element (1) has five faces in its form of use 3. Reusable interior lining for metal formwork, according to claim 1, characterized in that the lining element (1) is made of a multi-layer sheet of cardboard, polyethylene plastic and aluminum or plastic.

4. Reusable interior lining for metal formwork, according to claim 1, characterized in that it comprises means for closing (2) the faces.

5. Reusable inner lining for metal formwork, according to claim 1, characterized in that the fixing elements (3) consist of angular extensions located at the ends of the covering element (1), with holes suitable for insertion into the formwork studs.

6. Reusable interior lining for metal formwork, according to claim 1, characterized in that the lining element (1) includes screen-printed markings with reference data.

8. Reusable interior lining for metal formwork, according to claim 1, characterized in that the closing means (2) are arranged parallel to the folding lines.

9. Reusable interior lining for metal formwork, according to claim 1, characterized in that the closing means (2) are a tongue and groove.

Images