KR200321364Y1 - Formwork for Precast Concrete Panels - Google Patents

Abstract

The present invention relates to a formwork for precast concrete panels used in the field of construction, and more particularly to a formwork that can be adjusted by constructing a concrete panel having an opening or a recess, and more specifically, The present invention relates to a formwork for a concrete panel that is movable and lightweight.

According to the present invention, there is provided a formwork for precast concrete panel having a base and four side plates, the formwork comprising: a base having an opening portion forming region 20 or an inner convex region 22 ( 14), a pair of fixed side plates 16 spaced apart in parallel, and a pair of movable side plates 18 movable in parallel; The opening section 20 or the inner convex section 22 is formed in an area between the pair of movable side plates 18 which are spaced apart and movable in parallel; The pair of movable side plates 18, which are spaced apart and movable in parallel, are fixed in a pair of fixed spaced apart in parallel at a predetermined distance from the center of the opening portion forming region 20 or the inner convex region 22. A formwork for precast concrete panels is provided, which is firmly mounted to the side plates 16.

Description

Formwork for precast concrete panels {Formwork for Precast Concrete Panels}

The present invention relates to a formwork for precast concrete panels used in the field of construction, and more particularly to a formwork that can be adjusted by constructing a concrete panel having an opening or a recess. The present invention relates to a formwork for a concrete panel that is movable and lightweight.

Various methods exist for constructing precast concrete structures used for the purpose of constructing engineering structures such as homes, office buildings or other concrete structures. Pillars and beams are the most representative of precast concrete structures produced in factories and transported to the site.

Since the site for manufacturing precast concrete panels is generally far from the construction site, the transfer of such precast concrete panels requires heavy transfer equipment and is therefore expensive. This expensive transfer cost is one of the reasons why such precast concrete structures are not so popular in the field of construction.

In general, each section of a building consists of panels as structures having different sizes, that is, different widths, heights and thicknesses. When using precast concrete panels, different molds have to be prepared for each panel type in the building, which is very costly and lengthens the construction time.

U. S. Patent No. 5,219, 473 discloses a method for constructing a precast beam using a formwork having two upper and two lower sleeves that are spatially stationary with connecting members interposed therebetween. The length and height of the precast beam is determined by the specifications of the connecting member made of wood. However, this method has a disadvantage in that a new connecting member is required every time a new beam is manufactured. Therefore, this method has a disadvantage that the connecting members need a storage place for storing.

The present invention is to solve the above disadvantages, and to provide a lightweight mobile formwork that can be easily transported to the construction site with a minimum transfer cost.

The invention also aims to reduce the thickness of the central zone of the precast concrete panel while forming longitudinal channels with sufficient thickness along the edge of the precast concrete panel.

It is also an object of the present invention to provide a universal formwork that allows the same formwork to be used for the construction of different concrete panels without additional formwork.

Moreover, this invention aims at introducing the precast panel which has the beautiful opening part for installing a window etc ..

1 is a schematic perspective view of an embodiment of the present invention.

2 is a schematic perspective view of a slidable spaced parallel movable side plate;

3A, 3B and 3C are plan, side and front views, respectively, of the finished precast concrete panel.

4A, 4B, 4C, 4D, 4E, 4F, and 4G are cross-sectional views at each step of forming a base, respectively.

5A, 5B and 5C are schematic views of precast concrete panels of various shapes, respectively, formed by formwork of various shapes.

6A and 6B are schematic views of various shapes of precast concrete panels formed to have different widths by the same formwork, respectively, and FIGS. 6C and 6D are manufactured by using the same formwork and are supplementary T-shaped and Schematic diagram of precast concrete panels with L-shaped joints, and FIG. 6E is a schematic diagram of precast concrete panels fabricated using the same formwork but without auxiliary T- and L-shaped joints.

7 is a schematic view of the auxiliary formwork shown in FIG. 1.

8 is a schematic cross-sectional view of a formwork having an auxiliary T-shaped joint formwork.

9 is a schematic cross-sectional view of a formwork having an auxiliary L-shaped joint formwork.

10 is a schematic perspective view of an L-shaped auxiliary formwork in an embodiment of the present invention.

11 is a schematic perspective view of a formwork apparatus having an L-shaped auxiliary formwork.

12 is a partial cross-sectional view showing a shape in which the fixed side plate is fixed to the base spaced apart in parallel by the fixing means.

13 is a schematic view of the formwork of FIG. 1 without an auxiliary formwork.

FIG. 14 is a side view showing the fixing means of the movable side plate slidably parallel to each other shown in FIG. 10.

15 is a cross-sectional view of the formwork shown in FIG.

<Explanation of symbols for the main parts of the drawings>

14 base 16 fixed side plate

18: movable side plate

In the present invention, as a formwork for precast concrete panel having a base and four side plates, the formwork is spaced apart in parallel and fixed to the base provided with an open portion forming section or an inner convex section. A pair of fixed side plates and a pair of movable side plates spaced apart in parallel; The opening portion or the inner convex region is formed in an area between the pair of movable side plates movable in parallel; The pair of movable side plates, which are spaced apart and movable in parallel, is firmly mounted to the pair of fixed side plates fixedly spaced apart in parallel at a predetermined distance from the center of the opening portion forming region or the inner convex region. Formwork for precast concrete panels is provided.

In addition, in the present invention, in the above-mentioned formwork apparatus, a pair of movable side plates that are movable in parallel to each other in parallel is provided with a formwork apparatus for precast concrete panel, which is mounted to the fixed side plate so as to be movable. . In the present invention, in the above-mentioned formwork device, the pair of movable side plates which are spaced apart and movable in parallel are divided by a predetermined distance unit from the center of the formwork device, and are mounted on the fixed side plate. Formwork for precast concrete panels is provided.

Further, in the present invention, in the above-mentioned formwork device, the pair of movable side plates movable in parallel to each other are located at a predetermined distance apart, and the same formwork device having the opening portion forming region or the inner convex region. There is provided a formwork for precast concrete panels, which is also used for precast concrete panels having a predetermined width. In addition, in the present invention, in the above-mentioned formwork device, a pair of movable side plates movable in parallel are provided with a long ridge formed so that a channel corresponding to the ridge is formed in the precast concrete panel manufactured. Formwork for precast concrete panels is provided.

Further, in the present invention, in the above-described formwork device, the formwork device for precast concrete panel is provided with a pair of fixed side plates fixed in parallel spaced apart to accommodate the reinforcing bar is formed. do.

In addition, according to the present invention, there is provided a formwork for precast concrete panel, characterized in that a predetermined pattern is formed on the edge side of the opening portion forming region. In the present invention, there is provided a formwork for a precast concrete panel, wherein in the formwork described above, a predetermined pattern is formed on the surface of the edge side of the inner convex section. In the present invention, there is provided a formwork for a precast concrete panel, characterized in that in the formwork described above, a mold giving a predetermined impression is included at the edge side of the inner convex section.

In addition, in the present invention, in the above-mentioned formwork apparatus, further comprises an auxiliary formwork, the auxiliary formwork is provided with a pair of side plate material formed in the longitudinal direction across the fixed side plate and spaced from each other; The inner side of the pair of side plates forms a side of the mold, the upper surface of the concrete in the formwork forms the base of the mold, the mold is characterized in that it is formed to accommodate the concrete to form a protruding ridge Formwork for precast concrete panels is provided.

In addition, in the present invention, in the above-mentioned formwork apparatus, the auxiliary formwork is provided, the formwork apparatus for precast concrete panel, characterized in that can be installed at any position along the fixed side plate. Further, in the present invention, in the above-mentioned formwork apparatus, in the auxiliary formwork, the interval between each sideboard member of the pair of sideboard members formed in the longitudinal direction and spaced apart from each other varies depending on the width of the ridge in the longitudinal direction to be poured. There is provided a formwork for precast concrete panels.

In addition, in the present invention, in the formwork, the formwork for the precast concrete panel is provided, characterized in that the auxiliary formwork is provided with a longitudinal ridge so that the longitudinal channel can be formed in the concrete panel. .

The following describes the configuration of the present invention by looking at specific embodiments of the present invention with reference to the accompanying drawings.

The formwork device according to the present invention is provided with a main formwork 10 and an optional auxiliary formwork 12. The main formwork 10 is preferably squarely spaced and slidable in parallel with a pair of side plates 16 (hereinafter referred to as "fixed side plates") fixed in parallel with the base 14 of a rectangular shape. A pair of side plates 18 (hereinafter referred to as "movable side plates") are provided (FIG. 1). The base 14 is preferably formed with an opening 20 and / or an inner convex 22 in the region between the movable side plates 18.

The fixed side plate 16 is a long formed structure, one side (16A) of the fixed side plate 16 forms a boundary of the upper portion of the concrete panel to be poured later, the other side of the fixed side plate (16) 16B) forms the boundary of the lower part of the concrete panel to be poured later. The fixed side plate 16 has a guide 15 for receiving the movable side plate 18 along the length of the panel. At least one hole 24 is formed in one side 16A of the fixed side plate, and a reinforcing bar is accommodated in the hole 24.

The movable side plate 18 may also be formed to be perpendicular to the fixed side plate 16 along the same plane as a long structure. At least one of each side of the movable side plate 18 is formed with an elongated ridge 26 (FIG. 2). When the side plates (16, 18) are installed in the base (14), the concrete is poured by curing the concrete, and then remove the parallel side plate (16, 18) from the base 14, At the longitudinal edges of elongated channels 34 corresponding to the elongated ridges 26 are formed (Figs. 3a, 3b and 3c).

Opening zone 20 is an opening formed in the precast concrete panel after the concrete is poured. The opening may be an opening for exhaust or may be for installing a window or a door frame. By means of the convex zone 22 is meant a zone in which the thickness of the precast concrete panels formed in the interior convex zone after the concrete is poured is smaller than the thickness of the other zones of the precast concrete panels. This shape of the panel makes it possible to reduce the weight of the panel without sacrificing the structural strength of the panel.

A plaster frame 50 is placed on the flat work platform 17 to form an area enclosed in a rectangular shape (FIGS. 4A and 4B), and a boundary member 52 is positioned at the peripheral edge of the plaster frame 50 ( 4c). The boundary member 52 is made of gypsum or other suitable fastening material. It may be preferable that the pressed portion is formed in the center portion of the gypsum frame 50. Glass fiber or plastic materials are introduced and installed in the enclosed portion and the boundary portion 52 (FIG. 4D). After the fiberglass materials are installed, a fiberglass mound is formed. Before removing the gypsum frame 50 and the boundary member 52, a metal frame 19 on which the glass fiber material is laminated is installed in the glass fiber mound (FIGS. 4E and 4F). The purpose of the metal frame is to support the glass fiber mound when the gypsum frame 50 and the boundary member 52 are removed (FIG. 4G).

To sum it up again, the imprint of the desired window frame design is made of gypsum material and is located in the center of the confined part with the configuration as described above, followed by the introduction of glass fiber or plastic material. Before the gypsum frame and the boundary member are removed, it is preferable that the metal frame on which the glass fiber material is laminated is installed in the glass fiber mound. The purpose of the metal frame is to support the glass fiber mound when the gypsum frame and the boundary member are removed.

It is desirable to allow mold makers to mold molds suitable for another design. Figures 5a, 5b, 5c, 6a, 6b, 6c, 6d and 6e show precast concrete panels of various designs fabricated using various types of molds, respectively.

In an embodiment of the present invention, the base 14 is formed into one piece by hand. In large projects where the same mold on a large scale is desired, the process of making the mold is preferably carried out using a plastic molding method.

The auxiliary formwork 12 comprises a pair of side plates 28 which are arranged side by side in the longitudinal direction. The auxiliary formwork 12 is provided in the main formwork for the purpose of forming a neighboring projecting structure for accommodating other precast concrete panels, such as T-joints or L-joints. The auxiliary formwork 12 may be placed at any position along the parallel fixed side plate 16. The auxiliary formwork 12 is provided in the main formwork when the concrete placed in the main formwork is completely cured or partially cured. An elongated ridge 30 is provided between the parallel pair of side plate 28. When the auxiliary formwork is installed and concrete is cured, the installed structure is a longitudinal channel corresponding to the elongated ridge 30. (32) (FIGS. 7 and 8). When the projecting structure is located at the end edge of the panel, the outer side plate 18 is replaced by another side plate 13, which side plate 13 is integral with the movable side plate 18. 9 to 11.

The following describes the working mechanism of the present invention and other features of the present invention. First, the base 14 is placed on the support structure 36, which is in the plane of steel (Figs. 8 and 9). The support structure is located in the horizontal plane. Each stationary side plate 16 is located in the rebate member 38 of the base 14 (FIG. 12). The width of the rebate member 38 is equal to the width of the fixed side plate 16. Fixing means 40 are provided on the support structure 36 to fix the fixing side plate 16 to the base 14 and to fix the base 14 to the support structure 36. The fastening means 40 is preferably a metal bar welded to the support structure 36 (FIG. 1). The base 14 is mounted to the support structure 36 in such a way that at least one fastening means 40 is provided at each end edge of the upper and lower portions of the base 14. There is a gap between the edge of the base and the fixing means 40 so that the wedge-shaped spacer means 42 can be accommodated. The wedge-shaped spacer means 42 allows the stationary side plate 16 to be fixed to the rebate member 38 of the base 14 and the base 14 to the support structure 36.

Once the width of the precast concrete panel is determined, the movable side plate 18 is slidably positioned between the stationary side plates 16 spaced from the center of the base 14. If the determined width is correct, the movable side plate 18 is fixed at its current position. The means for fixing the movable side plate 18 in place is made by an adjusting arm 44, one end of which is positioned against the movable side plate 18, and the other end extends. It is located in the bracket 46 (Fig. 13). A spacer 48 is provided in the gap between the bracket 46 and the end of the adjustment arm 44 to fix the other end of the adjustment arm in the bracket 46 (FIG. 14). In addition, the end edge of the movable side plate 18 is fitted to the outside of the fixed side plate 16 to achieve a rigid structure. In this way, when the concrete is poured into the formwork 10, the movable side plate 18 can maintain a vertical position. In addition, by this structure, the movable side plate and the fixed side plate can be easily and simply released from the base 14.

When the side plates 16 and 18 are fixedly installed on the base 14, concrete is poured into the formwork. After the concrete is cured, the parallel side plates 16 and 18 are removed and the cured concrete panels are temporarily stored until they are transported to the site.

When concrete is poured into the formwork, it may completely cover the opening forming area 20 on the base 14 and may cover only the side of the opening forming area. When the concrete is poured into the formwork and poured over the height of the fixed side plate 16, the cast precast concrete panel is formed with recesses corresponding to the inner convex areas of the mold. On the other hand, when concrete is poured into the formwork, an opening is formed as it is poured into the upper edge of the opening forming area 20.

In the present embodiment, the open formation zone 20 and the inner convex zone 22 are designed with a flat plane, but the open formation zone 20 and the inner convex zone 22 have different geometric shapes. It may be designed, or may be designed to give another impression, such as a vase, an animal, or the like.

In the present embodiment, the opening portion forming region 20 and / or the inner convex region 22 are centrally located between the movable side plates 18 which are slidably spaced apart from each other or are fixed and movable side plates ( It is located in the base 14 in the center between the 16 and 18. However, the apertured zone 20 and / or the inner convex zone 22 may be placed at any position between the pair of side-by-side panels 16, 18 through modification.

In this embodiment, the fixed side plate 16 is provided on the base by the rebate member 38 and the wedge-shaped spacer member 42, but the fixed side plate 16 is a protruding member of the fixed side plate 16. It may be fixed by a recessed portion on the togued member and the rebate member of the base, or may be fixed by other known means not shown.

In this embodiment, the finished precast concrete panel is provided with a protruding structure to accommodate another precast concrete panel to form something like a "T" joint or an "L" joint. However, the precast concrete panel may be constructed so as not to have such a protruding structure (FIG. 15). In addition, separate "T", "L", crossover or square columns may be installed on site to secure the precast concrete panels to one another.

According to the present invention as described above, it is possible to provide a movable and lightweight formwork device that can be easily transported to the construction site with a minimum transfer cost.

In addition, according to the present invention, it is possible to provide the longitudinal channel with a sufficient thickness along the edge of the precast concrete panel while reducing the thickness of the central region of the precast concrete panel.

In addition, according to the present invention, the same formwork can be used for the construction of different concrete panels without additional formwork.

Claims (13)

A formwork for precast concrete panels having a base and four side plates, The formwork is moved in parallel with the base 14, which is provided with the opening forming section 20 or the inner convex section 22, with a pair of fixed side plates 16 fixed in parallel and spaced apart. A pair of movable side plates 18 as possible; The opening section 20 or the inner convex section 22 is formed in an area between the pair of movable side plates 18 which are spaced apart and movable in parallel; The pair of movable side plates 18, which are spaced apart and movable in parallel, are fixed in a pair of fixed spaced apart in parallel at a predetermined distance from the center of the opening portion forming region 20 or the inner convex region 22. Formwork device for precast concrete panel, characterized in that is firmly mounted to the side plate (16). The method of claim 1, The pair of movable side plates (18), which are spaced apart and movable in parallel, are mounted to the fixed side plates (16) to be movable. The method of claim 1, The pair of movable side plates 18, which are spaced apart in parallel and movable, are divided by a predetermined distance unit from the center of the formwork device, and mounted on the fixed side plate 16, characterized in that the formwork for precast concrete panels Device. The method of claim 1, The pair of movable side plates 18 which are spaced apart and movable in parallel are positioned spaced apart by a predetermined distance, Formwork apparatus for precast concrete panels, characterized in that the same formwork having said open-formation zones 20 or inner convex zones 22 is also used for precast concrete panels having a different width. The method of claim 1, The pair of movable side plates 18, which are spaced apart in parallel, are provided with ridges 26 formed to be elongated so that a channel 34 corresponding to the ridges 26 is formed in the precast concrete panel. Formwork for precast concrete panels. The method of claim 1, Forming device for precast concrete panel, characterized in that the pair of fixed side plates 16 are spaced apart in parallel fixed to one or more holes 24 to accommodate the reinforcing bar. The method of claim 1, Formwork device for precast concrete panel, characterized in that a predetermined pattern is formed on the edge side of the opening forming area (20). The method of claim 1, Formwork for precast concrete panel, characterized in that a predetermined pattern is formed on the surface of the edge side of the inner convex section (22). The method of claim 1, Formwork device for precast concrete panel, characterized in that the edge side of the inner convex section 22 includes a mold expressing a predetermined impression. The method of claim 1, Further comprising an auxiliary formwork 12, The auxiliary formwork (12) comprises a pair of side plate members (28) formed longitudinally across the stationary side plates (16) and spaced apart from each other; The inner side of the pair of side plate 28 forms the side of the mold, The upper surface of the concrete in the formwork 10 forms the base of the mold, The mold is a formwork for precast concrete panel, characterized in that formed to accommodate the concrete so that the protruding ridge 30 is formed. The method of claim 10, The auxiliary formwork 12, the formwork device for precast concrete panel, characterized in that can be installed at any position along the fixed side plate (16). The method of claim 10, In the auxiliary formwork 12, the interval between each side plate member of the pair of side plate members 28 formed in the longitudinal direction and spaced apart from each other is changed depending on the width of the ridge 30 in the longitudinal direction to be poured Formwork for precast concrete panels. The method of claim 10, Forming apparatus for precast concrete panel, characterized in that the secondary formwork 12 is provided with a longitudinal ridge 30 so that the longitudinal channel 32 is formed in the concrete panel.