JPH0223381Y2 - - 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. This eliminates the need to form continuous straight joints in both the vertical and horizontal directions, where concrete placement loads tend to concentrate, and reduces the number of formwork connectors and formwork group supports required. Simplified and rationalized construction work,
Using regular hexagonal or approximately regular hexagonal concrete formwork, which is said to have practical effects such as increasing efficiency, concrete walls, etc., including right-angled L shapes and having external and internal corners are cast. This invention relates to corner formwork for hexagonal concrete formwork used in forming.

<Prior art> As mentioned above, the hexagonal concrete formwork, which has excellent mechanical strength and has great practical effects in terms of formwork construction, was previously invented by the present inventor, and was published in Japanese Patent Publication No. 58-51807. It has already been disclosed in the No.

Therefore, when such a hexagonal concrete formwork is used to assemble and form a concrete pouring surface having a corner portion as described above, a hexagonal shape is formed at each of the two mutually inclined ends of the corner portion. Trapezoidal recesses that are divided into two halves occur in fragments, but in order to cast the entire piece, including the corners, with a good finish, it is necessary to close the fragmentary recesses on both sides, and to form hexagonal concrete forms on both sides. It is necessary to strongly connect groups to each other.

As a conventional method, as shown in Figs. 15 and 16, a hexagonal concrete form 1
Separately, it is cut into two halves, that is, a trapezoidal concrete formwork 04 that matches the recess.
Prepared for production, and created this trapezoidal concrete formwork 04.
are individually inserted into the fragment-like recesses, and on the outer side thereof, at a position corresponding to the corner ridge line, a rectangular or L-shaped through-column long connecting member 05 is inserted.
and fixedly connect the outer side portions of the end hexagonal concrete form 1 and the trapezoidal concrete form 04 to the two sides of the elongated connecting member 05.

<Problems to be solved by the invention> However, when using the above-mentioned corner processing means, the storage management of parts is complicated and inconvenient because there are many types of parts to be prepared and handled when processing the corners. Not only that, but it also required a lot of work on site, which was unfavorable in terms of the efficiency of the formwork work as a whole.

<Means for Solving the Problems> In view of the above circumstances, the present invention has been developed to allow corner processing to be carried out rationally and effectively by using only a single member, and also to have a dimension correction function for each of the two surfaces that are inclined to each other. The purpose is to provide a corner formwork for hexagonal concrete formwork according to the present invention to achieve this purpose.
A trapezoid that fits into a recess corresponding to the bisection of a regular hexagon formed on both sides of a corner when regular hexagonal or approximately regular hexagonal concrete formwork is stacked and connected in multiple rows and stages on two mutually inclined surfaces. One, two or half of the flat plate parts and one of the rectangular flat plate parts having a length equal to the diagonal length of the regular hexagon plus the length of one side and an appropriate width; Two flat plates, in which two or two halves are continuous as one body, are connected in a tilted posture to each other on one long side of the rectangular flat plate portion, and the width of the rectangular flat plate portion of both of these flat plates is The variable width flat plate has a structure that can be freely changed, and peripheral side plates are protrudingly connected to the entire peripheral portion of the variable width flat plate excluding the mutually connected sides in a vertical or substantially perpendicular attitude to the flat plate surface. It has characteristics.

<Function> The corner formwork according to the present invention having the above-mentioned characteristic structure connects the hexagonal concrete formwork in multiple rows and stages in parallel on each of the mutually inclined surfaces, and at the corner where these two surfaces 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 each of the above-mentioned both sides, fragment-like recesses are created at the ends of both sides of the corner part. At the same time, the formwork groups on both sides are strongly connected to each other, and a series of curved concrete pouring surfaces are formed at the corners on both sides. By changing the width of both flat plates according to the designed width of both inclined surfaces, it is possible to form a concrete pouring surface having a width that matches the designed width.

<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 by sheet metal processing in an attitude perpendicular to the surface of the flat plate 1A, and the circumferential side plate 6 has a fixing connection hole. It is formed. Reference numeral 4 denotes an L-shaped concrete casting surface formed by stacking and connecting the hexagonal concrete forms 1 in parallel in multiple rows and stages on each of two mutually perpendicular surfaces, and the casting surface outside the right-angled corner (outward corner side). This corner formwork has two flat plates 2A and 2B fixedly connected in a right-angled position. Both these flat plates 2A, 2
B represents one of the trapezoidal flat plate portions 2a and 2b obtained by cutting the regular hexagonal flat plate 1A in the hexagonal concrete formwork 1 into two equal parts along one diagonal line, and the diagonal line of the regular hexagonal flat plate 1A. The rectangular flat plate portions 2a _{1 ′} and _{2b 1} ′ have a length equal to the length l 1 plus the length l ₂ of one side of the regular hexagonal flat plate 1A (l = l ₁ + l ₂ ) and an appropriate width _{h 1} . Each one of the rectangular flat plate portions 2a ₁ ′, 2b ₁ ′ is movable in a congruent form in a continuous form so as to be rotationally symmetrical with the bisecting position in the long side direction of the rectangular flat plate portions 2a 1 ′, 2b 1 ′ as the center of symmetry. Flat plates 2A ₁ , 2B ₁ and the rectangular flat plate portion 2
rectangular flat plate portions _2a 2 ′, which have approximately the same length and approximately the same width h ₂ as a _{1 ′} , 2b ₁ ′, and are connected at right angles to each other;
Fixed flat plates 2A ₂ , 2B ₂ consisting of only 2b ₂ ′
_The rectangular flat plate portions ₍ 2a _' = ₂
a ₁ ′ + 2a ₂ ′), (2b ′ = 2b ₁ ′ + 2b ₂ ′) width (h
=h ₁
+h ₂ ) is configured to be freely changeable. Then, the flat plates on both sides (2A=2A ₁ +2A ₂ ), (2B=2B ₁ +
2B ₂ ), except for the mutually connected sides, there are circumferential side plates 3A with a protrusion equal to the circumferential side plate 6 of the hexagonal concrete formwork 1 in a vertical position with respect to the flat plate surface;
3B are integrally protruded and connected, and these peripheral side plates 3A,
Fixed connection holes 3a and 3b are formed in 3B, respectively.

Figures 3 and 4 show the usage procedure, that is, the state in which an L-shaped concrete pouring surface is formed.On each of the two surfaces perpendicular to each other, the hexagonal concrete forms 1 are arranged side by side in multiple rows and stacked, and , the adjacent formworks 1 and 1 are overlapped with each other, and the peripheral side plate 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. They correspond to each other, but the difference is that the peripheral side plates 3A and 3B
The protruding directions of the two are opposite to each other, and these are used to form the concrete pouring surface of the right-angled corner, as shown in FIGS. 3 and 4.

What is shown in FIG. 14 is the flat plate 2A, 2
B. Specifically, fixed flat plates 2A ₂ and 2B ₂ are pivotally connected via hinges 8 at their corners, so that the relative angle between both flat plates 2A and 2B can be changed. In this case, even if both inclined surfaces are not at right angles, it can be used in a state where the dimensions can be adjusted. It can also be applied to any one-sided type, half type, or double type.

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 corners using a hexagonal concrete formwork, which can be expected to have excellent practical effects as described above in terms of workability, It has the function of closing the intermittent recesses that occur, the function of strongly connecting the group of formwork on both sides that are inclined to each other, the function of supporting the corner part where the concrete pouring load is the strongest, and the function of the corner part. The function of reliably preventing the leakage of concrete slag as a continuous surface without a butting surface can be achieved not only by using only one type of member, but also by changing the width of the rectangular flat plate portion of both flat plates. By this, it is possible to exhibit the dimension adjustment function so that the width on each inclined surface becomes the designed dimension, and therefore, it is possible to perform the corner treatment of the corner wall etc. of any designed width dimension. can be carried out with extremely good workability using a single type of member, and it has become possible to achieve significant rationalization and economicalization of the entire formwork work.

[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 14 are perspective views showing different embodiments, and FIGS. 15 and 16 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 3A and 3B are circumferential plates.

Claims (1)

[Claims for Utility Model Registration] When regular hexagonal or approximately regular hexagonal concrete formwork 1 is stacked and connected in parallel in multiple rows and stages on each of its two mutually inclined sides, a regular hexagonal second shape is formed on both sides of a corner part. One, two, or half of the trapezoidal flat plate portions 2a, 2b that fit into the recess in the shape of a portion, and a length equal to the diagonal length of the regular hexagon plus the length of one side, and an appropriate width. A rectangular flat plate portion 2a′ having
Two flat plates 2A, 2B, in which one, two or half of 2b' are continuous in series, are connected to each other in an inclined posture on one long side of the rectangular flat plate portions 2a', 2b'. However, the rectangular flat plate portions 2a', 2 of these flat plates 2A, 2B
The width h of b' is configured to be freely changeable, and the entire periphery of the variable width flat plates 2A, 2B except for the mutually connected sides is perpendicular or approximately perpendicular to the plate surface of the flat plates 2A, 2B. A corner formwork for a hexagonal concrete formwork, characterized in that circumferential side plates 3A and 3B are protruded and connected in a posture. The corner formwork for a hexagonal concrete formwork according to claim 1, wherein both the flat plates 2A and 2B are fixedly connected in a right-angled position. The corner formwork for a hexagonal concrete formwork according to claim 1, wherein both the flat plates 2A and 2B are arranged in series so that their relative angles can be freely changed. The circumferential side plates 3A, 3B are two flat plates 2A,
Corner formwork for a hexagonal concrete formwork according to any one of claims 1 to 2, which is arranged in a row so as to protrude from the inner corner side of 2B. The circumferential side plates 3A, 3B are two flat plates 2A,
Corner formwork for a hexagonal concrete formwork according to any one of claims 1 to 2, which is continuously installed so as to protrude from the outer corner side of 2B.