JPH0331531Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a device for attaching and detaching relief mats for PC board formwork.

Conventional technology When manufacturing patterned exterior wall materials for PC board (precast concrete board) buildings, a rubber relief pine is attached to the bottom of the PC board formwork, and this is used as a mold to create the relief pattern on the PC board exterior wall surface. ing.

Problems that the invention aims to solve However, it becomes necessary to change the relief pattern, but conventionally, when changing the relief pattern, the adhesive between the relief mat and the formwork base frame was removed and the relief mat was replaced. I made a new one and attached a relief pine. However, this requires a lot of formwork and would be difficult to replace, so they are considering whether there is a way to somehow replace just the rubber part.

Means for Solving the Problems In consideration of these points, the present invention provides a device in which the relief mat can be easily replaced and removed from the PC board formwork.

That is, in this case, there is a thin iron plate that is attached to the bottom surface using an adhesive or the like, and reinforcing materials are provided at multiple locations under the iron plate, and the end of the reinforcing material has a hole drilled into it so that the tip of the fastener can be inserted into it. To provide an attachment/detachment device capable of fixing a PC board formwork relief mat having dimensions slightly smaller than the inside dimensions of the side frame from the outside of the side frame.

Function In this project, the relief mat for PC board formwork is used to press and fix the end of the reinforcing material of the relief mat against the PC board formwork using a fastener. It has a great practical effect because it can be easily replaced and removed from the plate formwork.

Embodiment FIGS. 1 and 2 are side sectional views of the case where two different fixing devices using fasteners are used for the PC board formwork using the relief mat for PC board formwork according to the present invention. Further, FIG. 3 is a longitudinal cross-sectional view showing the connection point between the PC board formwork 5 and the rubber relief mat 1.

In the figure, 1 is a relief mat, which is made of rubber and has a pattern on its surface. 2 is a thin iron plate attached to the bottom of the rubber relief mat with adhesive etc.
It is about 1.6 mm to 6 mm, and a reinforcing material that becomes a welded reinforcing bone is attached to it. These reinforcing members 3 are usually made of square pipes, channel steel, square steel, etc., and are attached in parallel at a plurality of locations. In addition, these reinforcing materials 3 are used to warp the rubber relief mats 1,
It is used to reinforce to prevent lifting etc. and to fix it to the formwork 5, and the formwork 5 has side frames 5a, (fixed side frames as shown in Fig. 1).
or 5b (removable side frame as shown in FIG. 2) 5c (its base frame as shown in FIG. 2) and a formwork base frame 6. Further, the section modulus of the reinforcing material 3 is selected empirically based on the area of the rubber mat, the excitation force when concrete is placed, etc. Also, the flat dimensions of the rubber relief mat 1 are PC
When replacing the rubber relief mat 1, which is slightly smaller than the inner dimension of the side frames 5a, 5b, and 5c of the plate form 5, the rubber relief mat can be installed from above without moving the side frames 5a, 5b, and 5c of the form 5. 1 can be attached and detached. 4 is a fastener, and in Figure 1 it is a side frame 5.
a diagonally downward from the outside, and its tip is fixed by being screwed into one of the holes 3a provided at the end of the reinforcing material 3.The fasteners 4 may be of the knock pin type, bolt type, or spring Models such as the attached pin type are available. Although the other end of the reinforcing material 3 is not shown,
It is similarly bored and fastened with a similar fastener 4. This type is used for fixed side frames (the side frame is removed from the mold without moving it). Also second
In the figure, the fastener 4 is attached to the formwork base frame 6,
The side plate 5c is passed through the side plate 5c in the horizontal direction, and its tip is inserted into one of the holes 3a provided at the end of the reinforcing member 3 and fixed therein.

Next, Fig. 4 a, b, and c show the structure of the rubber relief mat 1, Fig. 4 a is a side view, Fig. 4 b is a front view of a wide mat, and Fig. 4 c is a narrow rubber relief mat. FIG.

As mentioned above, a thin iron plate 2 is provided on the lower surface of the rubber relief mat 1, 5 is a formwork, 5a is a side frame, and 6 is a formwork base frame.

Effects of the invention As described above, in the present invention, the reinforcing material 3 is attached to the rubber relief mat 1 through a thin iron plate, and the side frames 5a, 5b, 5c are penetrated through the holes 3a provided at both ends of the reinforcing material 3. Press down and fix with the tip of the clasp 4, and then attach the relief mat 1.
Since it is made a little smaller than the inner dimension of the side frame 5a, it is easy to attach and detach when replacing the rubber relief mat, and the use of a fastener and a corresponding reinforcing material makes it easy to attach and detach.

[Brief explanation of the drawing]

Figures 1 and 2 are side sectional views of two different fixing devices using fasteners for PC board formwork using relief mats for PC board formwork according to the present invention, and Figure 3 is
A vertical cross-sectional view showing the joining points of the PC board formwork 5 and the rubber relief mat 1, and FIGS. 4a, b, and c are a side view, a front view, and a front view showing the structure of the rubber relief mat 1. In the figure, 1 is a rubber relief mat, 2 is a thin iron plate, 3 is a reinforcing material, 3a is a hole portion at both ends of the reinforcing material 3, 4 is a fastener, 5 is a formwork, 5a is a fixed side frame,
5b is a removable side frame, 5c is its base frame,
6 is the formwork base frame.

Claims (1)

[Claims for Utility Model Registration] (1) A relief mat for PC plate formwork has a thin iron plate attached to the lower surface of the relief mat, and reinforcing members welded at a plurality of places under the iron plate, and the ends of the reinforcing members This is a relief mat attachment/detachment device for PC board formwork, which has a hole so that the tip of the fastener can be hooked into it, and the dimensions are slightly smaller than the inside dimensions of the side frame so that it can be fixed from the outside of the side frame. (2) The relief for PC board formwork according to claim 1 of the utility model registration claim, wherein the fasteners penetrate the side frame diagonally downward from the outside and press and fix the ends of the reinforcing material of the relief pine. Matsuto attachment/detachment device. (3) The fastener moves the side frame from the outside in a horizontal direction with respect to the formwork base frame, and presses down and fixes the end of the reinforcing material of the relief mat as described in Claim 1 of the Utility Model Registration Claim. Relief mat attachment/detachment device for PC board formwork.