JPH0523711Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for connecting adjacent concrete forms.

[Prior art] As one type of slope protection work, concrete is poured in a grid pattern on the slope, and trees are planted in the space surrounded by the poured concrete structure, or concrete is poured further within the frame. The method of construction is known.

By the way, there have been many proposals for separators that maintain a predetermined spacing between formworks that are placed facing each other with a predetermined spacing apart, but there are few proposals regarding a connecting structure that connects adjacent formworks. Furthermore, no simple and effective connection structure has been proposed for cases where the slope is uneven.

[Objective of the invention] Therefore, the object of the invention is to provide a concrete formwork connection structure that is suitable for laying formwork on uneven slopes and has a simple structure.

[Structure of the invention] According to the concrete formwork connecting device of the invention, a mold is formed of two flat plates and a plurality of band-shaped plates arranged approximately parallel to each other between the flat plates and interconnecting the flat plates. a frame, and a plurality of first plates located at an end of one of the two flat plates approximately in the middle of the plurality of strip plates and extending in the longitudinal direction of the form frame.
A connecting member having a U-shaped cross section is provided to sandwich the flat plate in the width direction of the formwork, and a plurality of second lengths perpendicular to the first long holes are provided at both ends of the connecting member. A hole is formed, and the connector is inserted into the hole formed at the intersection of the first long hole and the second long hole, which are perpendicular to each other.

[Operation and effect of the invention] Therefore, both ends of the formworks placed adjacent to each other on the slope are held between the connecting members from above, and the first long hole of each formwork and the second long hole of the connecting member are connected. By inserting a connecting tool into the hole formed at the intersection with the hole, both formworks can be easily connected with a simple structure.

[Preferred Embodiment] When implementing the present invention, it is preferable that the mold is made of a synthetic resin material. In this way, the weight of the formwork is reduced, the finished surface of the poured concrete is made clean,
Furthermore, the number of times the formwork can be used can be increased.

When implementing this invention, the connector is made of synthetic resin material,
It is preferable to form a button shape with a tapered part having a diameter larger than the width of the elongated hole at the distal end and a flange part that holds the formwork and the connecting member together with the tapered part. In this way, the tapered part can be inserted into the hole formed at the intersection of the first and second elongated holes by utilizing the elasticity of the tapered part, and the number of times the connector can be used can be increased.

[Examples] Examples of the present invention will be described below with reference to the drawings.

In FIG. 1, a formwork 1 includes two flat plates 2 made of synthetic resin, and a plurality of plates (in the illustrated example, four
3), and space S1 to S3 with a rectangular cross section are formed by these.

At the end of the flat plate 2 on the side of the formwork 1 that does not touch the concrete, there are a plurality of pieces (two pieces in the illustrated example) located approximately in the middle of the strip plate 3 and long in the longitudinal direction Y of the formwork 1.
First elongated holes 4, 4 are formed toward spaces S1 and S2.

In FIG. 2, a connecting case 5 which is a connecting member
is formed in a downward U-shaped cross section so as to sandwich the flat plate 2 of the formwork 1 in the width direction X of the formwork 1.
The length of the formwork 1 in the longitudinal direction Y is the first
The length Y1 of the portion provided in the elongated hole 4 is slightly longer than twice the length Y1. And connection case 5
The side portions 6 are formed to have the same width as the flat plate 2, and the side portions 6 of the flat plate 2 are perpendicular to the first elongated holes 4 at both ends thereof on the side not in contact with the concrete. That is, a plurality of second long holes 7 (in the illustrated example, three holes each) are formed in the width direction X of the connection case 5. The length of the second long hole 7 is preferably as long as the strength allows, and the width is the same as that of the first long hole 4.

In FIG. 3, a connecting button 10 which is a connecting tool is shown.
is made of synthetic resin material. The connection button 10 includes a knob portion 11, a flange portion 12,
It consists of a shaft portion 13 with a diameter slightly smaller than the width of the elongated holes 4 and 7, and a tapered portion 14 with a diameter slightly larger than the width, and the flange portion 12 and the tapered portion 14 connect the flat plate 2 of the formwork 1 and the side plate of the connecting case 5. It is designed to hold 6. The diameter of the tapered portion 14 is formed such that its elasticity allows it to pass through the widths of the elongated holes 4 and 7.

Next, the mode of connection will be explained with reference to FIG.

Figure 3 shows that the formwork 1a and the formwork 1b are bent into a convex shape due to the unevenness of the slope, and the lowest strip plates 3a, 3b are formed.
It shows a state where the two are placed in contact with each other.

When the connecting case 5 is placed over both side plates 1a and 1b from above, the first elongated holes 4a and 4b and the second
The long holes 7a and 7b form holes A and B (four holes in the illustrated example) at their intersections, respectively. Therefore, it is possible to easily connect the formworks 1a, 1b by inserting the connecting buttons 10 into at least one upper and lower hole A, B, respectively.

Since the long holes 4a and 4b are formed in the longitudinal direction of the molds 1a and 1b, and the long holes 7a and 7b are formed in the width direction of the connecting case 5, the holes A and 4b are formed at the intersection of both long holes. B always exists, and therefore, adjacent formworks 1a and 1b can be connected to any unevenness of the slope, which is extremely convenient. Further, this connection structure can be applied to all the sides and chamfered corners of the formwork that is assembled in a lattice-like connection.

[Summary] As explained above, according to the present invention, it is possible to easily connect adjacent formworks to cope with any unevenness of the slope with a simple structure.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view of the end of the formwork, Fig. 2 is a perspective view of the connecting case, and Fig. 3 shows the formwork connected by the connecting case and the connecting button. FIG. 4 is a perspective view showing a connected state of the formwork bent due to the unevenness of the slope. A, B... Hole formed at the intersection of the first and second elongated holes, 1... Formwork, 2... Flat plate, 3... Strip plate, 4... First elongated hole, 5... ...Connection case, 6
...Side part, 7...Second long hole.

Claims (1)

[Scope of utility model registration request] A formwork consisting of two flat plates and a plurality of strip plates arranged substantially parallel between the flat plates and interconnecting the flat plates, the end of one of the two flat plates A plurality of first elongated holes are formed at approximately midpoints of the plurality of band-shaped plates and extend in the longitudinal direction of the formwork, and the cross section for holding the flat plate in the width direction of the formwork is U-shaped. A connecting member is provided, a plurality of second long holes are formed at both ends of the connecting member, and the first long holes and the second long holes are perpendicular to each other. A connecting structure for concrete formwork, characterized in that a connecting tool is inserted into a hole formed at an intersection part by penetrating the hole.