JPS6231551Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to formwork made of wire mesh.

2. Description of the Related Art Conventionally, there has been a wire mesh formwork in which a concrete structure is constructed by installing a wire mesh in parallel between supporting columns set up opposite each other and pouring concrete between the wire meshes.

The problem with such formwork is that it is the wire mesh that supports the concrete, and even if the wire mesh is supported from both sides with supports, the wire mesh tends to bend and it is difficult to set it straight. . Pouring concrete between such bent wire meshes poses problems in terms of construction accuracy, and the finished concrete structure does not have a good appearance. Furthermore, although it is preferable in terms of work efficiency to place a work platform board or the like on the upper part of the formwork, it has been impossible to place it on the upper end of the wire mesh, which is easily bent.

This idea was made to solve the above-mentioned drawbacks, and it provides a wire mesh formwork that allows wire mesh to be stretched straight, and also allows work scaffolding to be placed on it, improving work efficiency. The purpose is to

Next, this invention will be explained in detail based on the embodiment shown in the drawings.

In the figure, 1 is a support column, and C channel material 2
The entire length can be expanded and contracted by two pieces.
That is, the flange 22 of one C channel material 2
is brought into contact with the flange 22 of the other C channel material 2 so that the webs 21 of each C channel material 2 are flush with each other. These two C channel materials 2 are integrally connected by a connecting tool 3.

As shown in FIGS. 2 and 3, the connector 3 may be configured such that a bolt 32 can be screwed into it from the side of a connecting band 31 having a rectangular cross section. Two C channel members 2 are inserted into this connecting band 31 and fixed by screwing bolts 32 together.

In addition, it is possible to employ as the coupling device 3 a structure in which two coupling plates 33 with bent ends, as shown in FIGS. 5 and 7, are opposed to each other and coupled by bolts 34. C channel material 2 on each side of the bolt 34
Insert it and tighten the bolt 34 to fix it.

Near the upper and lower ends of the support column 1 are mounting brackets 4 for end pieces.
5 is installed. In the embodiment, the fixture 4 is attached to the surface of the web 21 of the C channel material 2 on the flange 22 side, and the fixture 4 is attached to the upper part of the support column 1 near one end of one C channel material 2, and is attached to the bottom of the support column 1. The tool 5 is attached near one end of the other C channel material 2.

The fixture 4 attached to the top of the support column 1 is a web 21
It protrudes perpendicularly to the surface and is provided so that its tip is bent toward the upper end of the support column 1. In the embodiment shown in FIG. 3, an insertion portion 23 having a chevron-shaped cross section is provided projecting in the longitudinal direction of the C channel material 2 on the surface of the web 21. A V-shaped insertion piece 41 is formed at one end of the insertion portion 23 of the fitting 4 having an L-shaped cross section.
Insert and install 1. In the embodiments shown in FIGS. 4 and 7, the C channel material 2 is provided with a lip 24 facing away from the end of the flange 22, and the fitting 4 is provided with an abutting portion 42 at one end. It is also possible to use a structure in which a clamping plate 43 is connected to the contact portion 42 by a bolt 44 so as to face the contact portion 42 . By rotating the bolt 44, the lip 24 of the C channel material 2 is clamped and attached between the contact portion 42 of the fixture 4 and the clamping plate 43.

The fixture 5 attached to the lower part of the support column 1 is a web 21
Provided so as to protrude at right angles to the surface. In the embodiment shown in FIG. 3, an insertion portion 23 having a chevron-shaped cross section is formed in the longitudinal direction of the C channel material 2 on the surface of the web 21. This insertion portion 23 has a V-shaped insertion piece 5 at one end.
The insertion piece 51 of the stepped fixture 5 formed with 1
Insert and install. Further, in the embodiments shown in FIGS. 6 and 7, the C channel material 2 used is one in which a lip 24 is provided oppositely to the end of the flange 22, and the fitting 5 has an abutment part on the upper part. 52 is formed, and it is also possible to use a structure in which a clamping plate 53 is connected to the contact portion 52 by a bolt 54 so as to face the contact portion 52. By rotating the bolt 54, the lip 24 of the C channel material 2 is clamped between the abutting part 52 of the fixture 5 and the clamping plate 53, and is mounted.

The pillars 1 constructed as described above are erected facing each other, and the spacing between the pillars 1 is maintained by the spacing retainer 6. The pillars 1 are erected at appropriate intervals, and thick timbers 7 are stretched between adjacent pillars 1. As the end member 7, a steel pipe, a square member, etc. can be used, and it is horizontally attached to the tip of the spacer 6 on the side opposite to the opposite side of the support 1 by means of a fitting 8.

Further, thick timbers 7 are horizontally stretched over the upper and lower parts of the support 1. The end piece 7 to be attached to the upper part of the column 1 has an L-shaped cross section, and the piece 7 is placed on the upper end surface of the fixture 4 and the column 1, and a bolt is screwed onto the fixture 4. Fix it. At this time, the opposing side surface 71 of the end piece 7 is flush with the opposing side surface of the support 1.

The end piece 7 attached to the lower part of the support 1 has a rectangular cross section, and is positioned below the fixture 5.
Fix it with screws etc.

Wire meshes 9 are stretched in parallel on opposite sides of the pillars 1, respectively. Various materials such as expanded metal and punched metal can be used as the wire mesh 9. wire mesh 9
The upper end is fixed by nailing or the like to the opposing side surface 71 of the uppermost end piece 7 attached to the support column 1. Alternatively, it is also possible to use a wire mesh fixture 10 as shown in FIG. That is, the locking part 11 of the bendable plate-like wire mesh fixture 10 having a locking part 11 at one end is inserted into the mesh on the opposite side of the wire mesh 9 and locked, and then It is fixed at the end face with nails or the like.

The lower end of the wire mesh 9 is fixed by nailing to the support 1. Alternatively, the locking part 11 of the wire mesh fixture 10 is inserted into the wire mesh 9 from the outside and locked,
It is conceivable to pull it toward the lowest end thick material 7 side and nail it into place to fix it.

This invention has the above-mentioned structure, and the upper and lower parts of the column are covered with thick pieces of wood, and the wire mesh side of the upper piece of wood is flush with the opposite side of the column. This end material allows the wire mesh to be stretched straight.

Additionally, scaffolding boards and the like can be placed on the end pieces, which significantly improves work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of this invention, Fig. 2 is a perspective view of the connector, Fig. 3 is a perspective view of the support column, and Fig. 4 is a perspective view of the connector.
The figure is a perspective view of the fixture, FIG. 5 is a perspective view of the connector,
FIG. 6 is a perspective view of the fixture, FIG. 7 is a perspective view of the support column, FIG. 8 is a plan view of the wire mesh fixture, and FIG. 9 is a vertical sectional view of the formwork. 1... Prop, 2... C channel material, 3... Connector, 4, 5... Mounting tool, 6... Spacing holder, 7
...Scrap lumber, 9...Wire mesh.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of pillars are erected facing each other, and a plurality of pillars are erected with distances maintained by spacing holders, separated by appropriate distances,
In a formwork in which thick timbers are stretched between adjacent columns, and wire mesh is stretched parallel to the thick timbers facing each other between opposing columns, there are thick timbers at the top and bottom of each of the adjacent columns. A formwork made of wire mesh, in which the timbers are stretched over each other and the thick timbers attached to the top of the pillars are placed on the upper end surfaces of the pillars, and the wire mesh side surfaces of the timbers are flush with the opposing side surfaces of the pillars.