JPH0223380Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is a concrete formwork that assembles and forms a concrete pouring surface of a required area by stacking and connecting a plurality of pieces in parallel in multiple rows and stages. , joints where concrete placement loads tend to concentrate,
The advantage is that it does not need to be formed in a continuous straight line in both the vertical and horizontal directions, and it reduces the number of motes, formwork connectors, and formwork group supports, simplifying and rationalizing formwork work, and increasing efficiency. Using a regular hexagonal or approximately regular hexagonal concrete formwork, a right angle L
This invention relates to corner formwork for hexagonal concrete formwork used when pouring and forming shaped concrete walls, etc.

To be more specific, the right-angled corner casting surface of an L-shaped concrete casting surface is formed by stacking and connecting regular hexagonal or substantially regular hexagonal concrete formwork in multiple rows and stages on each of two sides orthogonal to each other. Concerning corner formwork to be formed.

<Prior art> As mentioned above, the hexagonal concrete formwork, which has excellent mechanical strength and great advantages in terms of formwork construction, was previously invented by the inventor of the present invention, and was published in Japanese Patent Publication No. 58-51807.
This information is disclosed in the official regulations, etc.

Therefore, when a right-angled L-shaped concrete pouring surface is assembled and formed using such a hexagonal concrete formwork, a hexagonal bisection is formed at the end of each of the two mutually perpendicular surfaces at the corner. Equivalent trapezoidal recesses occur intermittently, and in order to cast and form a wall with well-finished corners, it is necessary to reliably close the intermittent recesses on both sides, and to connect hexagonal concrete forms on both sides. It is necessary to firmly and fixedly connect the groups to each other.

Conventionally, as shown in FIGS. 14 and 15, the conventional method is to cut the hexagonal concrete form 1 into two halves separately from the hexagonal concrete form 1.
Trapezoidal concrete formwork 0 that fits into the recess
4 is prepared, and this trapezoidal concrete form 04 is inserted into the recess and positioned, and a columnar square or L-shaped long connecting member 05 is inserted along the outer side of the trapezoidal concrete form 04.
A means was employed to abut the two orthogonal faces of the elongated connecting member 05 with the outer sides of the hexagonal concrete formwork 1 and the trapezoidal concrete formwork 04 in a fixed manner.

<Problems to be solved by the invention> However, when using the above-mentioned corner processing means, there are many types of parts used, which makes storage and handling more inconvenient, and increases the number of on-site operations. Since the abutting portions of the formwork on both sides are located at the corner ridgeline where the concrete placing load is the strongest, there was a drawback that concrete slag easily leaked out.

<Means for solving the problem> In view of the above-mentioned circumstances, the present invention has been developed to rationally and efficiently process the above-mentioned right-angled corners using a single member.
The purpose is to provide a corner formwork for hexagonal concrete formwork that can be effectively realized, and to achieve this purpose, the corner formwork according to the present invention has the following features:
One or two of the trapezoidal flat plate portions that fit into the recesses in the shape equivalent to bisecting a regular hexagon formed by the hexagonal concrete formwork at the ends of each of the two mutually orthogonal surfaces of the L-shaped concrete casting surface. Two consecutive rectangular flat plate parts, one or two or half of which have a length equal to the diagonal length of the regular hexagon plus the length of one side of the regular hexagon, and an appropriate width. Two flat plates are fixed and connected in a perpendicular position, and peripheral side plates are protruded and connected in a perpendicular or substantially perpendicular position to the surface of the flat plates on the periphery of the two flat plates, excluding the mutually connected sides. It is characterized by its structure.

<Function> The Lohner formwork according to the present invention having the above-mentioned characteristic structure connects the hexagonal concrete formwork in multiple rows and stacks in parallel on each of the two sides perpendicular to each other, and at the right-angled corner where the two sides intersect. By stacking and interconnecting a plurality of corner formworks and fixedly connecting them to those located at the ends of the group of hexagonal concrete formworks on both sides, the intermittent recesses that occur on each of the both sides are closed. At the same time, by positioning the rectangular plate parts in a straight line, a column-shaped reinforcement body is formed through the right-angled corner part, and an L-shaped continuous surface is placed against the corner ridgeline. This makes it possible to form shaped concrete pouring surfaces.

<Example> An example of the present invention will be described below in detail based on the drawings.

In Figures 1 and 2, 1 is a hexagonal concrete formwork, which is a regular hexagonal flat plate 1A.
Around the entire outer edge of the flat plate 1A, a circumferential side plate 6 for overlapping and fixing is integrally protruded and continuous by sheet metal processing in a posture perpendicular to the plate surface of the flat plate 1A, and the circumferential side plate 6 is provided with fixing connection holes. 6a is formed. Reference numeral 4 denotes an L-shaped concrete casting surface formed by stacking and connecting the hexagonal concrete forms 1 in multiple rows and stages on each of two mutually perpendicular sides, and the casting surface outside the right-angled corner (projecting corner side). This corner formwork has two flat plates 2A and 2B that are fixed and connected in a mutually perpendicular posture, and the entire periphery of these flat plates 2A and 2B except for the mutually connected sides is , a circumferential side plate 3 with a protrusion equal to the circumferential side plate 6 of the hexagonal concrete formwork 1 is integrally provided in a vertical position with respect to the flat plates 2A, 2B, and is fixed to the circumferential side plate 3. A connecting hole 3a is formed. Each of the flat plates 2A and 2B includes one trapezoidal flat plate portion 2a and 2b each having a shape obtained by cutting the regular hexagonal flat plate 1A in the hexagonal concrete formwork 1 into two halves along one diagonal line, and A _{length (} l
= l ₁ + l ₂ ) and each one of the rectangular flat plate portions 2a', 2b' having an appropriate width h are continuous in a series, and the rectangular flat plate portions 2a, 2b are connected to the trapezoidal flat plate portions 2a, 2b. The portions 2a' and 2b' are formed so as to be rotationally symmetrical with the bisecting position in the long side direction as the center of symmetry.

Figures 3 and 4 show the usage procedure, that is, the state in which L-shaped concrete pouring surfaces are formed, and on each of the two surfaces perpendicular to each other, the hexagonal concrete forms 1 are arranged in multiple rows and stacked in multiple stages. At the same time, the adjacent formworks 1, 1 are overlapped with the circumferential side plates 6,
6 is fixedly connected via bolts, nuts, etc. to form a concrete pouring surface of the required area on each of the two sides, and at the right angle corner,
By assembling and connecting a plurality of the corner forms 4 vertically as explained in the above-mentioned <Function> section, a casting surface of a right-angled corner is formed.

5 to 8 show modified examples of the corner formwork 4 for right-angled corners, and the one shown in FIG. 5 is a rectangular flat plate constituting both the flat plates 2A and 2B. The parts 2a' and 2b' are integrally integrated in a series with one side of the trapezoidal flat plate parts 2a and 2b in the long side direction, and the part shown in FIG. 6 is the same as in FIGS. 1 and 2. The one shown in Figure 7 is divided into two halves, the one shown in Figure 7 is a double-shaped one in which two of the ones shown in Figures 1 and 2 are connected vertically, and the one shown in Figure 8 is The one shown is a double offset type, in which two of the offset type shown in FIG. 5 are connected one above the other.

9 to 13 are applied to a corner form 4' for a right-angled corner, respectively, and the form is similar to that shown in FIGS. 1 and 2, and 5 to 8. Although they correspond to each other, the difference is that the protruding direction of the circumferential side plates 3 is opposite, and these are used to form a concrete pouring surface for a right-angled corner, as shown in FIG.

Furthermore, in any of the above forms, it is desirable to provide reinforcing ribs as appropriate to increase the overall strength, and the same applies to the hexagonal concrete form 1.

<Effects of the invention> As can be understood from the detailed explanation above, the corner formwork according to the invention has an assembly posture that does not form continuous straight joints, so it is mechanically advantageous. When assembling and forming a concrete pouring surface with right-angled corners using a hexagonal concrete formwork, which can be expected to have excellent practical effects as described above in terms of workability, both sides of the right-angled corners It has the function of closing the intermittent recesses that occur on each side, the function of strongly connecting the groups of formwork on both sides that are perpendicular to each other, the function of supporting the corner part where the concrete placing load is the strongest, and the function of the corner. The function of reliably preventing the leakage of concrete slag by creating a continuous surface with no abutting surface can be achieved by using only one type of member. It is easier to store and handle the parts used for forming the molds, etc., and the number of steps involved in assembling the formwork on site is also reduced, making it possible to significantly streamline and economize the formwork work as a whole.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention,
Figure 1 is a perspective view, Figure 2 is a front view, Figures 3 and 4 are a perspective view and a schematic plan view of the main parts in use,
FIGS. 5 to 13 are perspective views showing different embodiments, and FIGS. 14 and 15 are a front view and a plan view of essential parts showing conventional corner processing means. 1 is a hexagonal concrete formwork, 2a and 2b are trapezoidal flat plate parts, 2a' and 2b' are rectangular flat plate parts, 2
A and 2B are flat plates, and 3 is a circumferential side plate.

Claims (1)

[Scope of Claim for Utility Model Registration] Right angle corner of an L-shaped concrete pouring surface formed by stacking and connecting regular hexagonal or substantially regular hexagonal concrete formwork 1 side by side in multiple rows and stages on each of two mutually orthogonal surfaces. A trapezoidal flat plate portion 2a, which is a corner formwork forming a partial pouring surface, and which fits into a recess corresponding to the bisection of a regular hexagon formed by the hexagonal concrete formwork 1 at the ends of each of the above-mentioned both sides. , 2b, and a rectangular flat plate portion 2 having a length equal to the diagonal length of the regular hexagon plus the length of one side of the regular hexagon and an appropriate width.
Two flat plates 2A, 2B in which one, two or half of a', 2b' are connected are fixed and connected in a right angle posture, and these two flat plates 2
A hexagonal concrete formwork characterized in that a circumferential side plate 3 is protruded from the peripheral part of the flat plates 2A and 2B in a perpendicular or substantially perpendicular attitude to the flat plate surfaces of the flat plates 2A and 2B, excluding the mutually connected sides. Corner formwork for. The rectangular flat plate portions 2a', 2b' of the flat plates 2A, 2B are the trapezoidal flat plate portions 2a, 2b.
Corner formwork for hexagonal concrete formwork according to claim 1, which is continuous so as to be symmetrical in the long side direction of the hexagonal concrete formwork. The corner formwork for hexagonal concrete formwork according to claim 1, wherein the circumferential side plate 3 is connected to the two flat plates 2A, 2B so as to protrude from the inner corner side thereof. The corner formwork for hexagonal concrete formwork according to claim 1, wherein the circumferential side plate 3 is connected to the two flat plates 2A, 2B so as to protrude from the outer corner sides thereof.