JPS62133253A - Mold frame for molding base contrete - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) This invention relates to a formwork for forming foundation concrete for forming foundation concrete for houses, etc.

(Prior art) In general, this type of formwork has a concrete forming surface for forming the vertical surface of the foundation concrete, and connecting rods perpendicular to the concrete forming surface are provided at both ends of the concrete forming surface. is provided, and the connection (I) allows it to be assembled to the adjacent formwork.

(Problem to be Solved by the Invention) However, according to this conventional configuration, each connecting rod is orthogonal to the concrete forming surface, so a specially shaped corner mold is placed at a position corresponding to each corner of the foundation concrete. It is necessary to use a frame. This corner formwork usually has a planar shape of “
Unlike formwork for forming straight parts,
Its storage and transportation were very inconvenient. Moreover, the existence of this type of corner formwork increases the number of types of formwork, so
There was also the problem that the assembly work was very troublesome.

Structure of the Invention (Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and a connecting rod is obliquely provided on at least one end edge of the concrete molding surface.

(Operation) According to the solution of the present invention described above, if a plurality of adjacent formworks are connected to each other by the connecting rod, the formwork at the end corresponding to the corner part of the foundation concrete functions as a corner formwork. do.

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described in detail based on FIGS. 1 to 6.

Figure 1 shows a formwork arrangement diagram when pouring foundation concrete for a house. In this arrangement example, the first formwork 1, the second formwork 2, and the third formwork each have different lengths. Four types of formwork, frame 3 and fourth formwork 4, are used.

The first formwork 1 has the longest length and is used most frequently, and its planar shape is a parallelogram. The second formwork 2 has a length half that of the first formwork 1, and has a parallelogram-shaped plane. The third formwork 3 is placed inside the foundation concrete C, and has a trapezoidal planar shape, and the long side of the third formwork 3 is placed inside the foundation concrete C.
A concrete molding surface 5 is formed for molding the inner vertical surface of the concrete molding surface. The fourth formwork 4 is placed outside the foundation concrete 1-C, has a trapezoidal planar shape, and has a concrete forming surface 5 on its short side for forming the outer vertical surface of the foundation concrete C. It is formed.

Next, the configuration of each of the above-mentioned formworks 1 to 4 will be explained based on FIG. 2. Note that FIG. 2 is an exploded view of each formwork viewed from the direction of the arrow in FIG. 1.

The first formwork 1 and the second formwork 2 differ only in length and have substantially the same structure.

Each formwork 1, 2 is provided with a forming plate 6 formed into a rectangular shape by a metal plate, the outer surface of which serves as a concrete forming surface 5 for forming the vertical structure of the foundation concrete C.

An upper side plate 7 and a lower side plate 8 are bent at an angle of 90 degrees to the concrete forming surface 5 on both upper and lower edges of the forming plate 6. A pair of left and right reinforcing beams 9 are fixed to the back surface of the molded plate 6 between the side plates 7°8.

Connecting rods 10 and 11 made of metal plates are fixed to both left and right edges of the molded plate 6 between the side plates 7 and 8 at an inclination angle of about 45 degrees to the concrete molded surface 5, respectively. Both connecting rods 10.11 are arranged in planes parallel to each other, and the planar shape of each of the first and second formworks 1.2 is a parallelogram.

A pair of upper and lower insertion holes 12 are provided in the upper and lower parts of each connecting rod 10.11, respectively. Then, each connecting rod 10.11 of the adjacent formworks 1 and 2 is joined, and each insertion hole 1
2 and attaching the connecting tool 14 shown in FIG. are placed in the same plane. The connector 14 includes a locking pin 15 that is loosely fitted into the insertion hole 12 of the connection types io and i1, and an operating portion 16 on the opposite side of the locking pin 15.
and a clamping part 17 between the locking pin 15 and the operating part 16, and the distal ends of the clamping part 17 and the operating part 16 are each bent slightly outward.

A connecting rod 10 that is connected to the connecting rod 11 of the second formwork 2 is fixed to one end edge of the concrete forming surface 5 of the third formwork 3 obliquely at an angle of 45 degrees with respect to the concrete forming surface 5. ing. It! of the concrete forming surface C on the corner side of the foundation concrete C! ! Connecting rod 20 on the edge
is provided at an angle of 45 degrees with respect to the concrete forming structure 5. Both connections Q10, 20 are arranged in planes perpendicular to each other on the back side of the formwork 3, and the planar shape of the third formwork 3 is trapezoidal.

The fourth formwork 4 has almost the same structure as the third formwork 3, but the position of the concrete forming surface 5 is opposite to that of the third formwork 3 and is located on the short side of the trapezoid ( (See Figure 1). Incidentally, if a large number of the first formworks 1 shown in FIG. 2 are arranged upside down on the outside of the foundation concrete C, and the fourth formwork 4 is arranged at the outer corner part, an outer corner formwork group is formed. is configured.

4.5.6 shows the connection configuration at each corner section indicated by X, Y, and Z in FIG. The connecting tool 14 is attached by its locking pin 15, and the connecting rods 10, 11, 20 which are joined to each other are strongly held by the clamping portion 17.

Next, a formwork construction method for forming foundation concrete C for a house using each formwork 1 to 4 having the above configuration will be described. As shown in FIG. 1, a large number of first formworks 1 and an appropriate number of fourth formworks 4 for quality adjustment are arranged outside the foundation concrete C. In this case, each formwork 1
, 4 are connected to each other and are clamped by the connectors 14, so that the formworks 1.4 can be reliably connected to each other with the concrete molding surfaces 5 disposed in the same plane. It is assembled and maintained. Also, by butting the end faces of the two first formworks 1 at positions corresponding to the outer corners of the foundation concrete C and sandwiching the connecting rods 10° 11 of both with the connecting tools 14, each concrete forming surface 5 is Connected through a 90 degree angle. Therefore, the formwork at the corner portion can be easily assembled without using the conventional corner formwork. Moreover, since the connecting rods 10, 11 are inclined at an angle of approximately 45 degrees with respect to the concrete molding surface 5, there is no possibility that the work of attaching and detaching the connecting tool 14 will be troublesome. Note that two fourth formworks 4 are assembled at one outer corner of the foundation concrete C in the same manner as the first formwork 1 described above, but these fourth formworks 4 are used for quality adjustment. Since it has the functions of both a formwork and a corner formwork, the types of formwork used to form the outer vertical surface of the foundation concrete C can be reduced.

Inside the aforementioned outer formwork group, an inner formwork group is arranged at a distance corresponding to the width of the foundation concrete C. The large number of first formworks 1, the appropriate number of second formworks 2, and the appropriate number of third formworks 3 as length adjustment forms in the inner formwork are the above-mentioned outer formwork group. It is assembled in the same way. At positions corresponding to the inner corner portions of the foundation concrete 1-C, two first formworks 1 are placed with their connecting rods 10 and 11 connected together. Furthermore, depending on the length of the foundation concrete, two third formworks 3 may be placed at the inner corner portions with their connections f120 connected (see FIG. 6). In this inner formwork group as well, as in the outer formwork group, formwork can be easily assembled using a small number of types of formwork without using specially shaped corner forms. In addition, the first formwork 1 of the outer formwork group and the first formwork of the inner formwork group
The molds 1 each have the same configuration, and by using the inside and outside upside down, it is possible to reduce the number of types of molds.

(Second Embodiment) Next, a second embodiment in which the present invention is embodied in a slide formwork will be described based on FIG. 7.

The sliding formwork 21 is a left formwork piece 23 with a left forming plate 22
and a right molding plate 25 with a right molding plate 24, and with the right molding plate 24 joined to the left molding plate 22, the upper and lower sides of the left molding plate 23 are separated. A right frame piece 25 is telescopically accommodated between 7 and 8. Each formwork piece 2
A plurality of positioning holes 26 are transparently provided in each of the side plates 7 and 8 of 3.25, and by inserting the connecting pin 27 with each positioning hole 26 aligned, the entire slide formwork 21 is formed. The quality can be adjusted arbitrarily. The slide formwork 21 on the right side of FIG. 7 is the formwork 21 on the left side turned upside down.

A connecting rod 10 is fixed to the left edge of the left formwork piece 23 so as to be inclined at an angle of 45 degrees with respect to the concrete forming surface 5. Further, a connecting rod 20 is fixed to the right edge of a part of the corner of the right formwork piece 25 at an inclination angle of 45 degrees to the concrete forming surface 5, and a connecting rod 20 is fixed to the left edge of the right formwork piece 25 at an angle of inclination of 45 degrees with respect to the concrete forming surface 5. A rectangular pipe-shaped reinforcing bar 29 is fixed thereto. When both the frame pieces 23, 25 are integrated, the planar shape of the slide frame 21 becomes trapezoidal due to the connections FX10, 20.

Therefore, the two slide formworks 2 configured as above
1 is placed perpendicularly at a position corresponding to the corner part of the foundation concrete C, and the connecting rod 11 of the first formwork 1 is assembled to the connection +110 of the left formwork piece 23, and facing each other at the corner part. If the connecting rods 20 of the second formwork pieces 25 are joined and connected,
Each slide formwork 21 can function as a length adjustment formwork and a corner formwork. Therefore, if this sliding formwork 21 is installed at each position corresponding to the corner part of the foundation concrete C in the formwork arrangement example shown in FIG. By omitting the second and third corner formworks 3, it is possible to easily assemble formworks using fewer types of formworks. Of course, if this slide formwork 21 is used, there is no need to use the conventional "shaped corner formwork."

Note that this invention is not limited to the configurations of each of the embodiments described above; for example, the above-mentioned inclined connecting rod may be provided only on one edge of the concrete molding surface and a right-angled connecting rod may be provided on the other edge; It is also possible to change the shape and structure of each part arbitrarily without departing from the spirit of the invention, such as by appropriately changing the inclination angle of the connecting rod with respect to the concrete molding surface.

Effects of the Invention As detailed above, according to the present invention, since an inclined connecting rod is provided on at least one edge of the concrete forming surface, the formwork work at the position corresponding to the corner of the foundation concrete can be carried out using a specially shaped corner mold. This has the added effect of being easy to perform without using a frame.

[Brief explanation of drawings]

1 to 6 show a first embodiment embodying this invention,
Figure 1 is a layout diagram of formwork, and Figure 2 is a diagram showing the layout of the first and second forms for forming the vicinity of the inner corner of the foundation concrete. FIG. 3 is a perspective view showing the third formwork separately, FIG. 3 is a perspective view showing the connecting tool, and FIGS. 4 to 6 are cross-sectional views showing the assembled structure of the formwork at different positions. FIG. 7 is an exploded perspective view showing a second embodiment embodying the invention. 1 is the first formwork, 2 is the second formwork, 3 is the third formwork, and 4 is the fourth formwork.
Formwork, 5 concrete forming surface, 6 forming plate, 10,1
1.20 is a connection, 14 is a connector, 21 is a slide formwork, and C is a foundation concrete 1-.

Claims (1)

[Claims] 1. In a formwork having a concrete forming surface (5) for forming a vertical surface of foundation concrete (C), at least one end edge of the concrete forming surface (5),
Connecting rail (1) that is inclined to the concrete forming surface (5)
0, 11) A formwork for forming foundation concrete, characterized in that it is provided with: 2. Place the connecting rods (10, 11) on the concrete forming surface (
5) The formwork for forming foundation concrete according to claim 1, wherein both end edges of the formwork are arranged in planes parallel to each other. 3. The connecting rods (10, 11) are connected to the concrete forming surface (
5) The formwork for forming foundation concrete according to claim 1 or 2, characterized in that the formwork is inclined at an angle of approximately 45 degrees with respect to the formwork of claim 1 or 2. 4. Divide the concrete forming surface (5) into left and right halves;
The connecting rods (10, 11) are provided on the left edge of the left concrete forming surface (5) and the right edge of the right concrete forming surface (5), and both the left and right concrete forming surfaces (5) are joined together. The formwork for forming foundation concrete according to claim 2 or 3, characterized in that the formwork is expandably and contractibly connected in a state.