JP3019074U - Net formwork equipment - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The formwork device is not disassembled, and auxiliary materials such as thick timbers and pipes are not required. An improved mesh formwork device is provided. [Structure] A pair of lower runners 2, 2 installed at a predetermined interval on abandoned concrete 1, and a plurality of vertical reinforcing ribs which are erected upward with their lower ends abutting on the inside of the lower runner. A pair of net formwork 3, 3 having 10 ... and upper runners 4, 4 attached to the upper ends of the pair of net formwork.
And a space holder 5 for holding the space between the pair of net form frames,
And a lateral end thick member 6 attached along the outside of the mesh form at the tip of the space holder protruding from the inside of the pair of mesh forms.
A fixing member 7 for fixing the fixing member 7 can be attached, and the fixing member has a lateral end thick material holding portion formed at least in one of the up and down directions based on the attachment portion 9 to the space holder.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a so-called buried type net formwork device using a mesh-like net formwork.

[0002]

[Prior art]

 Conventionally, a net formwork device has a generally H-shaped top end member holder 21 connected above the stirrup streak 20 and a top end member above the top end member holder 21 as can be seen from FIG. The runner support member 22 is connected, and the top runner 23 is supported on both sides of the top runner support member 22.

The net formwork 24 is suspended from the top end runner 23, a lower runner 25 is installed on the lower end side of the network form 24, and a net formwork 24 is provided outside the net formwork 24. As will be understood from the above, the horizontal frame thick members 26 and the vertical edge thick members 27 are assembled in a substantially lattice shape to strengthen the mesh mold to form a mold device.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional formwork apparatus, since the rigidity of the mesh formwork is small and it cannot stand on its own, it is strengthened by the combination of the horizontal edge thick material 26 and the vertical edge thick material 27 which are the above-mentioned temporary materials. Of. However, with such a conventional formwork configuration, the above-mentioned horizontal end thick member 26 and vertical end thick member 27 are attached to the net formwork assembling work, or the dismantling work is performed in the formwork work. %, And in order to save labor, there was a demand for a construction method that reduces the number of diverted timbers.

In addition, there is a problem in that small-scale underground beams and foundations with relatively short beam heights have a high proportion of auxiliary materials (such as timber timbers and pipes), and cost merit does not come out. It was Further, in the conventional construction method, the mold is disassembled unless the dirt on the thick timbers 26, 27 caused by spillage is cleaned and the sloppy bottom end of the vertical thick timber 27 generated during concrete placement is removed. There was also a problem that it could not be done smoothly.

Thus, the present invention has been made in view of the above-mentioned conventional problems, and since the formwork device does not have to be disassembled at all, it leads to rationalization of work and shortening of the construction period, as well as splinters and pipes of thick timber. Providing a net formwork device that does not require auxiliary materials such as etc., transports and places them in half, reduces the weight of formwork materials, facilitates formwork assembly work, and significantly improves construction work That is the purpose.

[0007]

[Means for Solving the Problems]

 The net formwork device according to the present invention is constructed such that a pair of lower runners 2 and 2 installed at a predetermined interval on abandoned concrete 1 and a lower end portion of the lower runners 2 and 2 are brought into contact with each other to stand up. A pair of net formwork 3, 3 having a plurality of vertical reinforcing ribs 10 provided, and upper runners 4, 4 attached to the upper ends of the pair of network form 3, 3; A pair of mesh formwork 3, 3, and a space holder 5 for holding the space between the mesh formwork 3, 3. 3, a fixing member 7 for fixing the lateral end thick material 6 provided along the outer side can be attached, and the fixing member 7 has at least the upper and lower parts based on the attachment portion 9 to the interval holder 5. The lateral edge thick material holding portion 9 is formed in either one of the two directions, and the fixing member 7 and the lateral edge thick material 6 are provided. It is composed of a possible killing fill.

[0008]

[Action]

 In the present invention, the net form 3 is provided with a plurality of vertical reinforcing ribs 10 ... Therefore, the vertical edge thick material is not required, and the lateral edge thick material and the fixing member for fixing the lateral edge thick material are buried as they are.

[0009] Therefore, it is not necessary to dismantle the formwork device, which leads to rationalization of work and shortening of the construction period, and also eliminates the need for auxiliary materials such as thick timber piers and pipes, and reduces the transportation and storage space by half. At the same time, the weight of the formwork material can be reduced, and the work of assembling the formwork is easy and the work can be greatly improved.

[0010]

【Example】

 The present invention will be described below with reference to the embodiments shown in the drawings. A pair of lower runners 2 and 2 are provided on the discarded concrete 1 at predetermined intervals. As the lower runner 2, for example, an L-shaped angle member having a substantially L-shaped cross section is used.

Then, a pair of net formwork 3 and 3 is erected with the lower end portions abutting on the insides of the lower runners 2 and 2 installed opposite to each other. The net form frame 3 is provided with a plurality of vertical reinforcing ribs 10 at predetermined intervals so that the net form frame 3 can stand on its own without any auxiliary member. Then, upper runners 4 and 4 each made of a substantially L-shaped L-shaped angle member are attached to the upper ends of the pair of net formwork 3 and 3.

Further, in order to maintain a predetermined interval between the pair of net molds 3 and 3 (a gap that becomes the thickness of concrete to be placed later), a gap holder 5 is inserted through the net molds 3 and 3. It is installed. Then, the lateral end thick material 6 attached along the outside of the mesh frame 3 is fixed to the tip end portion of the space holder 5 protruding outward from the inside of the pair of mesh molds 3, 3. The member 7 is attached.

The fixing member 7 has a shape shown in FIGS. 3, 4 and 5, and in the fixing member 7 shown in FIG. 3, the mounting portion 8 provided at the center of the fixing member 7 serves as a base portion. The horizontal thick material holding portions 9 are provided at two positions in the up and down direction. On the other hand, in the fixing member 7 shown in FIG. 4, the lateral end thick material holding portion 9 is formed only above the mounting portion 8.

Further, in the fixing member 7 shown in FIG. 5, a horizontal end thick material holding portion 9 is formed by extending horizontally from the lower end of the mounting portion 8 and further rising upward to be formed into a substantially U-shape. The usage of the present invention will be described above. First, in the procedure for constructing the net formwork device according to the present invention, the top line is checked, and the interval holder 5 is attached in advance by using a stirrup streak or the like installed in the formwork.

After that, the pair of net formwork 3, 3 is attached at a predetermined interval. At this time, the tip of the space holder is to penetrate the mesh frames 3 and 3 and project outward. Further, the lower runners 2, 2 are installed, the lower end portions of the net formwork 3, 3 are brought into contact with the insides of the lower runner 2, 2, and the lower runners 2, 2 and the lower ends of the net formwork 3, 3 The part is connected and fixed.

Here, the connecting and fixing method is not limited in any way, but as shown in the figure, the binding wire 11 is inserted into the through hole 12 formed in the lower runner 2 and the binding wire 11 is used for fixing the binding. Alternatively, the mesh form 3 may be fixed by the cut-and-raised claws provided on the lower runner 2. Next, the fixing members 7 are attached to the distal ends of the spacing members 5 by screwing them on, and the lateral end thick members 6 are attached to the fixing members 7.

By the way, after the lateral end thick members 6, 6 are attached to the outside of the net formwork 3, 3 on both sides via the fixing member 7, for example, at a substantially intermediate portion between the fixing member 7 and the fixing member 7, As can be understood from the figure, it is desirable to tighten the number lines 13 and the like. After that, the upper runners 4 and 4 are attached to the upper ends of the net formwork 3 and 3, and then concrete is placed.

The method of connecting and fixing the upper runner 4 and the net form 3 is not limited in any way, but as in the case of the lower runner 2, it is tied to the through hole 12 formed in the upper runner 4. The wire 11 may be inserted and fixed by binding with the binding wire 11, or the net form 3 may be fixed by the cut-and-raised claws provided on the upper runner 4. Then, the horizontal thick material 6 or the fixing member 7 is buried by pouring concrete.

After the solidification of the concrete, however, the work of dismantling the formwork does not require any effort.

[0020]

[Effect of device]

 Thus, the present invention has the above configuration. The net formwork device according to the present invention does not require dismantling of the formwork device, which rationalizes the work and shortens the construction period, and eliminates the need for auxiliary materials such as timber stiles and pipes. In addition to halving the transportation and storage space, it is possible to reduce the weight of the formwork material, facilitate the work of assembling the formwork, and significantly improve the construction work.

[Brief description of drawings]

FIG. 1 is a perspective view (1) of an embodiment according to the present invention.

FIG. 2 is a perspective view (2) of the embodiment according to the present invention.

FIG. 3 is an explanatory view (No. 1) showing the configuration of the fixing member.

FIG. 4 is an explanatory view (No. 2) showing the configuration of the fixing member.

FIG. 5 is an explanatory view (No. 3) showing the configuration of the fixing member.

FIG. 6 is a configuration explanatory view (1) of a conventional example.

FIG. 7 is a configuration explanatory view (No. 2) of a conventional example.

FIG. 8 is a configuration explanatory view (3) of the conventional example.

[Explanation of symbols]

 1 Discarded concrete 2 Lower runner 3 Net formwork 4 Upper runner 5 Spacing tool 6 Horizontal edge thick material 7 Fixing member 8 Attachment section 9 Horizontal edge thick material holding section 11 Bundling wire 12 Through hole 13 Stirrup bar 21 Top end Member holder 22 Top runner support member 23 Top runner 24 Net formwork 25 Lower runner 26 Horizontal thick material 27 Vertical thick material

Claims (1)

[Scope of utility model registration request] 1. A pair of lower runners (2, 2) installed at a predetermined interval on abandoned concrete (1) and an upper part of the lower runners (2, 2) with their lower ends abutting against each other. A pair of mesh formwork (3, 3) having a plurality of vertical reinforcing ribs (10 ...) installed upright on the upper end of the pair of mesh formwork (3, 3) An upper runner (4, 4); and a space holder (5) for holding the space between the pair of net formwork (3, 3). A fixing member (7) for fixing a lateral end thick material (6) attached along the outside of the net formwork (3, 3) to the tip of the space holder (5) protruding to the outside.
The fixing member (7) has the lateral end thick material holding portion (9) formed at least in one of the up and down directions with the attachment portion (9) to the spacing member (5) as a base portion. A net formwork device characterized in that the fixing member (7) and the lateral end thick material (6) can be buried.