JP4232980B2 - Machin block removal formwork support - Google Patents

Description

The present invention relates to a member that secures and facilitates the work of securing the back-filled concrete placement and charging the back-ground crushed stone, trunk concrete, and back-filled concrete.

In the case where there is the backing concrete 3 in the block product as shown in FIG. 2, the plate 7 having the same width as the width of the backing concrete 3 is secured on the back side of the 35 cm concrete block 1. After that, a punching mold 5 for stopping the backside crushed stone 4 is built, and the backside crushed stone 4 is put in to place the inlay concrete and the 3 backside concrete at the same time.
After the concrete is placed, the board 7 and the like for the width stop and the punching frame 5 are removed, and the recycling is completed.

JP2003-3495

According to the prior art, prior to the introduction of the back-ground crushed stone 4, the plate of the width stop material 7, etc. is placed on the back of the concrete block 1 and sandwiched by the punching mold 5 so that the width stop plate etc. does not fall down. The backside crushed stone 4 must be thrown into.
For that purpose, the width stopper 7 and the punching mold 5 can only be thrown in by a backhoe or human power so as not to fall down. After this operation is finished, the concrete concrete 2 and the back concrete 3 are placed at the same time. The concrete placement is usually performed by a hopper or the like, but when the raw concrete is put in, the width stop plate 7 is pushed down by the raw concrete. End up. If it does so, the punching mold 5 will be pushed out to the back concrete 3 side with the pressure of the back ground crushed stone 4, and the size according to a standard will not be obtained. When the concrete placing operation is completed, the width stopper 7 and the punching frame 5 are pulled out and washed with water. However, there is anxiety about the water tightness of the concrete after the width stopper 7 is pulled out. As described above, a great deal of labor is required, and it is lacking in certainty such as whether or not a standard size is obtained and a water tightness problem.
Accordingly, an object of the present invention is to provide a width-reducing material that is reliable and low-cost and can reduce labor, because the dimensions of the backing concrete can be obtained as specified.

The wire rod is formed in a substantially triangular shape, and one end portion is folded back from the lower end portion of one of the hypotenuses of the same triangle to take a width that can hold the punching mold frame, and further, with respect to the one hypotenuse side A self-supporting cutting die that forms a lining concrete casting width portion that is bent in an orthogonal direction, and the other end portion is bent horizontally from the lower end portion of the other hypotenuse to form a bottom portion. It is to use a punching mold frame support material characterized in that a plurality of bending V-cuts for adjusting the length are applied to the frame support material and the above-mentioned back concrete placing width portion.

According to this embodiment, there is no need to support the punching mold support once set. Save time and effort.

An embodiment of the present invention is shown in FIG. The punching frame support material is attached after the concrete block 1 has been installed on site. The structure shown in FIG. 3 is made of a wire rod (about 5 mm), and the block product front slope has various types such as 3 minutes, 4 minutes, and 5 minutes. It is necessary to adjust part A according to the gradient. is there. Next, the B part (V-cut to be folded) is folded according to the standard dimensions (10 cm, 15 cm, 20 cm) of the back concrete 3. The cut struts and the parts that support and support the punching formwork are adjusted by hand so that they intersect at right angles.

It can correspond to a gradient on the front side of the block (2 to 6 minutes), and the width of the lining concrete can correspond to 10cm, 15cm, 20cm, etc.

It is sectional drawing which shows one Embodiment of this invention. It is sectional drawing which shows embodiment of a prior art. It is explanatory drawing corresponding to the construction change of embodiment. It is a perspective view of a machin block extraction formwork support material.

Explanation of symbols

1 Concrete block (Machi block)
2 Intruded concrete 3 Backed concrete 4 Backed crushed stone 5 Punched mold 6 Punched mold support 7 Conventional width stop material

Claims (2)

The wire rod is formed in a substantially triangular shape, and one end portion is folded back from the lower end portion of one hypotenuse of the triangle to take a width that can hold the punching mold frame, and further, with respect to the one hypotenuse A self-supporting cutting die that forms a back-filled concrete casting width portion that is bent in an orthogonal direction, and the other end portion is bent horizontally from the lower end portion of the other hypotenuse to form a bottom portion. Frame support material. 2. The punching mold frame support material according to claim 1, wherein a bending V-cut for adjusting a plurality of lengths is applied to the back concrete placing width portion.

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