JPH0142598Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to formwork materials used when pouring concrete structures, and in particular, to construct formwork of a desired length without cutting even long panel materials. This invention relates to a formwork material that can be used many times.

In the following description, a conventional example and an embodiment of the present invention will be described using a cloth foundation formwork as an example.

Conventional cloth foundation formwork includes a formwork constructed by cutting and assembling plywood panels, or a formwork constructed by combining formwork materials made of steel plates. The former method involves cutting and assembling plywood panels on site, which lengthens the construction period, and it is uneconomical because only a portion of the formwork material can be reused, while the latter requires the use of many different types of formwork materials. Since it is necessary to prepare in advance, even if it is possible to use the product many times, it requires a large amount of money and is inconvenient in terms of storage and transportation.

The present invention was made with the aim of solving the problems of conventional formwork materials, and the gist is:
A plurality of reinforcing members formed to a predetermined length are connected by a flexible sheet member while being aligned vertically with a predetermined gap in the longitudinal direction and with a predetermined spacing in the width direction. A type consisting of a panel material that is attached to the panel material, and a flap material that is attached to a gap formed in the width direction of the panel material during formwork assembly and supports and fixes the ends of reinforcing materials on both sides of the gap. It is a frame material.

Among the above-mentioned components, the reinforcing material functions as a flap supporting the flexible sheet material, and therefore, any material, shape, and size may be used as long as it has the necessary strength. Furthermore, the flexible sheet member includes all members that are flexible and water resistant, have a sheet shape or a net shape, and have the function of firmly adhering to a reinforcing material. In addition, the reinforcing material and the sheet member may be connected by arranging and fixing a plurality of reinforcing materials to a long sheet member, or by connecting the arranged reinforcing materials with a sheet-like member. But that's fine. Furthermore, the flap material includes all members that have the function of supporting and fixing the ends of the reinforcing material during formwork assembly.

An embodiment of the present invention will be described below.

Fig. 1 is a perspective view of the structure of the panel material and the flap material as seen from the back side of the panel material, and 1 is a flexible sheet member (hereinafter simply referred to as a sheet member), for example, cloth,
Non-woven fabric, waterproof paper, plastic film, net made of natural fibers or synthetic fibers, or plastic molded net (hereinafter simply referred to as net material), such as plastic film. 2 is a reinforcing material, and this example is a plastic molded material with an L-shaped cross section. The panel members 3 are fixed to the sheet member 1 in a state where they are aligned vertically with a predetermined gap n in the direction and with a predetermined gap m in the width direction. Reference numeral 4 denotes a flap material used in combination with the panel material 3, and grooves 5a and 5b are formed into which the ends 2a and 2b of the reinforcing material 2 fit, respectively, and the width n of the front end surface 4a is equal to the width n of the front end surface 4a. is formed to have the same size as the gap n formed in the width direction of the frame, and when assembling the formwork, the flap material 4 is attached to this gap part, and the separator 7 passes through the separator through holes 8 and 6 to the home tie 9. When fastened with the ends 2a of the reinforcing material 2,
2b fits into the grooves 5a, 5b of the flap material 4 and is fixed. If necessary, insert a horizontally long washer between the nut of the separator 7 and the sheet member 1, and insert the reinforcing material 2.
It may be clamped and fixed between the flap material 4 and the washer. The panel material 3 to which the flap material 4 is fixed in this manner is erected, and the panel material assembled in the same manner is erected on the other end of the separator 7 and fastened with home ties, and the flap material 4 is secured to the stake. etc. to fix it to the ground and assemble the formwork. In the formwork assembled in this manner, the reinforcing members 2 of the panel members 3 function as horizontal flap members, and the flap members 4 function as vertical flap members.

FIG. 2 is a plan view showing the assembled state of the inside of the projecting corner of the formwork, and FIG. 3 is a perspective view of the joint hardware.
First, as shown in the left part of FIG. 2, when connecting the panel 3 to a corner block in the middle, attach the joint hardware 10 to the end of the reinforcing material 2 of the panel material 3 as shown, and then attach the joint hardware 10 to the end of the reinforcement material 2 of the panel material 3. The remaining portion of the sheet member 1 is bent 90 degrees along the joint hardware 10, and is screwed into the corner block 12 through the through hole 11 with a screw nail 13. In this case, the reinforcing material 2 of the bent part
The sheet member 1 is pressed and fixed with a joint metal fitting 10. In this way, a formwork of a desired length can be assembled without cutting the panel material 3.
Note that the through hole 1 formed in the joint hardware 10
If the position 1 is set to be away from the arrangement position of the reinforcing material 2, the advantage is that when the panel material 3 is reused, the screw holes can be easily reinforced by pasting tape, etc. There is.

Next, the lower right part of FIG. 2 shows a state in which the starting end of another panel material 3 is connected to the corner bar 12 using the same joint hardware 10. In this case, attach the joint hardware 10 to the end of the reinforcing material 2
is interposed between the joint hardware 10 and the corner block 12, and is fixed by screwing with a screw nail 13. In this way, the sheet member 1 is held between the corner bar 12 and the Yatoite 14, and the reinforcing material 2 is supported by the corner bar 12 in a manner supported by the joint hardware 2.

The structure of the corner of the formwork which is the outside of the external corner can be similarly composed of the joint hardware 10 and the corner bar 14 formed in an appropriate cross section, in accordance with the example explained above, and the structure of the internal corner can also be Can be configured similarly. However, in these cases, the required length of the inner panel material and the required length of the outer panel material constituting the formwork may be different, and the length of the flap material 4 connected by the separator 7 may be different.
Since the positions of the panel members 3 and 3 need to face each other directly, it is necessary to increase the length of the outer panel member 3 at the end of the panel member 3. In this case, it is possible to change the shape of the corner bar 12 to compensate for such insufficient length, but in the panel material according to the present invention, the lengths (l ₁ , l ₂ . . . ln ), and in Fig. 1, reinforcing materials of length l ₁ are arranged in the first row at the far left, and then reinforcing materials of length l ₂ are arranged in the second row with a gap n. Prepare a panel material 3a in which reinforcing materials of different lengths are arranged in sequence and fixed to member 1, such as arranging reinforcing materials, and when it becomes necessary to adjust the length of the formwork, adjust the appropriate length. As shown in the plan view in Figure 4, 102 pieces of joint hardware and 1 piece of Yatoibata material were selected.
Connect using 5. That is, the panel materials 3, 3a
Attach metal fittings 10 to each of the reinforcing members 2 and 21,
When these two joint metal fittings 10 are fastened with bolts 13a and nuts 13d via the cross-section material 15, a reinforcing member 2 with a length l is attached to a reinforcing member ₂₁ with a length l1.
are connected, so the length of the reinforcing material 21 to be added is l ₁
By selecting an appropriate value, the length of the formwork can be adjusted.

In the embodiments described above, a plastic film is used as the sheet member 1, and plastic moldings having an L-shaped cross section are arranged and fixed to the sheet member 1, but the present invention is not limited to this structure.

FIG. 5 is a perspective view of another embodiment of the present invention seen from the back, in which a sheet member 1 is made of a net material, and a reinforcing member 2 made of a plastic molded material with a T-shaped cross section is attached in the width direction. They are arranged and fixed so that they are adjacent to each other.

FIG. 6 is a perspective view of another embodiment seen from the front, and in this example, the sheet member 1 has an L-shaped cross section or a T-shaped cross section.
It is used as a connecting material for the reinforcing material 2 in the shape of a letter, and the reinforcing material 2 and the sheet member 1 are firmly adhered or welded by reducing the gap between the upper and lower abutting surfaces of the reinforcing material 2, and the panel is attached to the front of the reinforcing material 2. This constitutes most of the surface of the material 3.

FIG. 7 is a side view showing an example of the reinforcing material 2 that can be applied to the embodiments shown in FIGS. 5 and 6, in which a supporting portion 2c is formed on the upper end side. In this embodiment, leakage of concrete mortar from between the horizontal beams 2 can be prevented.

FIG. 8 is a perspective view of still another embodiment of the present invention as seen from the back side, in which reinforcing members 2 and 22 are constructed to reduce the bulk of the panel material 3 when folded, considering convenience during storage and transportation. The rib position is shifted. In the figure, the ribs of the reinforcing members 22 in odd-numbered rows, such as the first and third rows, are located on the upper side, and the ribs of the even-numbered reinforcing members 22, such as the fourth row, are located on the lower side. They are arranged and fixed to the sheet member 1 so that When this panel material 3 is folded as shown in the plan view of FIG. 9, as shown in the cross-sectional view of FIG. When they are tied together, they can be packed in a durable manner, making them easier to handle during storage and transportation.

In addition, in all of the above embodiments, the reinforcing material is L-shaped or T-shaped.
Although we have shown an example in which a plastic molded material with a letter-shaped cross section is applied, the present invention is not limited to this example, and reinforcing materials formed from wood formed into an appropriate cross-sectional shape such as a rectangular or triangular shape, or a bent metal plate. Needless to say, the following can also be applied.

Further, since the height of the formwork is low, if separators can be attached to the upper and lower end faces, the holes 6 and 8 for passing the separators are not necessary.

Furthermore, the flap material 4 does not necessarily need to be inserted into the gap to the position where it contacts the sheet member 1; in short, it has the function of supporting and fixing the ends 2a, 2b (shown in FIG. 1) of the reinforcing material 2. It is sufficient to have the shape, and the shape is not limited to that shown in FIG. Therefore, the dimension of the gap n in the longitudinal direction of the reinforcing material 2 is sufficient as shown in FIG. 9, which does not cause trouble when folding. It may have such a configuration.

As explained above, the present invention has a plurality of reinforcing members formed to a predetermined length, which are arranged vertically with a predetermined gap in the longitudinal direction and at predetermined intervals in the width direction. When the panel material is connected by a flexible sheet member in the state and the formwork is assembled, it is installed in the gap formed in the width direction of the panel material and supports and fixes the ends of the reinforcing material on both sides of the gap. It is a formwork material made of wood, and the panels of the formwork can be assembled by simply stretching the panel material, which has reinforcing material placed and fixed in advance, and attaching the batten material.
The formwork can be assembled easily and quickly, and since the formwork can be assembled to a desired length without cutting the panel material, it can be rotated multiple times, which has a great practical effect.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention seen from the back side, Fig. 2 is a plan view showing the assembled state of the inside of the projecting corner of the formwork, Fig. 3 is a perspective view of the joint metal fittings, and Fig. 4 is a perspective view of an embodiment of the present invention.
5 is a perspective view of another embodiment of the panel material as seen from the back side; FIG. 6 is a perspective view of still another embodiment of the panel material as seen from the front surface; FIG. The figure is a side view of still another embodiment of the panel material, FIG. 8 is a perspective view of still another embodiment of the panel material seen from the back, and FIG. 9 shows the embodiment shown in FIG. 8 in a folded state. The plan view shown in Figure 10 is
FIG. Explanation of symbols, 1... Flexible sheet member, 2, 2
1, 22... Reinforcement material, 3, 3a... Panel material, 4... Flap material, 5a, 5b... Groove, 6, 8, 11... Through hole, 1
0... Joint hardware, 12... Corner wood, 13... Fastening member, 14... Yatoibata wood, 15... Yatoibata lumber.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of reinforcing members formed to a constant length on a flexible sheet member when aligned at predetermined regular intervals in the longitudinal direction and width direction of the flexible sheet member. It is attached to the space between the panel material to which is attached and the reinforcing material formed in the longitudinal direction of the panel material during formwork assembly, and holds and fixes the ends of each reinforcing material on both sides of the space. Formwork material made of batten wood. (2) Utility model registration claim 1 in which the reinforcing material is a member having an L-shaped or T-shaped cross-sectional shape
Formwork materials listed in section. (3) The formwork material according to claim 2, wherein the panel material is such that the reinforcing members are arranged at such small intervals in the width direction that they touch each other.