JPH08284410A - Concrete form connecting material - Google Patents

Abstract

PURPOSE: To improve working efficiency and connect plastic panels at a right angle by connecting inner faces to plural triangular reinforcing plates to form edges as continuous seal faces and inserting pins in areas except in the seal faces. CONSTITUTION: The end of the connection 19 of a connecting material mainbody 11 is placed on the outside angular portion positioned by marking and the side wall plates of face plates 13, 13a is made to coincide with each other. The side wall plates of plastic panels abut each other and pins for connecting clips are inserted into pin insertion holes in the side wall plates of the panels and into pin insertion holes 30 in the connecting material mainbody 11. Additionally, they are clamped with clamping plates and connected together. In this way, the face plates 13, 13a are formed at a right angle, pin insertion holes are made therein at the same positions as those in the panels and the side wall plates of the panels abut each other, so that accurate assembly at a right angle can simply be done. A recess 25 is thus made in the outside faces of the face plates 13, 13a and a seal face 27 and a abutting face 29 are arranged therein to be completely adhered and connected to the side wall plates of the panels.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting material for connecting concrete formwork used for producing a concrete structure such as an outer wall of a building by placing concrete, and more specifically, concrete on the outside of a corner. The present invention relates to a concrete formwork connecting material used when connecting formwork by bending it at a certain angle.

[0002]

2. Description of the Related Art In concrete construction, the assembling of a mold which is a mold for concrete driving is the most important work, and the quality of the assembling of the mold is directly related to the concrete size, quality and accuracy. Conventionally, wooden panels, metal panels, and plastic panels are generally used for formwork panels used for concrete pouring, and when connecting linearly in the same plane, The four side wall plates are butted and fixed with nails or clips. Further, in connecting plastic panels and the like, it is important to minimize cutting and notching in order to prevent the panel from being consumed. Therefore, in the case where the corner portions are bent at a certain angle to be connected, the panel and the plywood are combined as illustrated in the schematic explanatory views of FIGS. 8 and 9.

FIG. 8 shows a plastic panel 1 having outer corners.
The side wall plate of the other panel 1a is abutted at a right angle on the surface 3 which is the concrete pouring surface, and the joint is fixed by the vertical flap 5, and is fixed by the clip 7 to the adjacent panel arranged in parallel on the same plane. are doing. Further, since the panels cannot be directly connected at the inner corners, the plywood 9 having a predetermined width dimension is used.
The splint 10 is struck to form an inner formwork, and the panel 1 and the like are connected thereto. FIG. 9 exemplifies another connection structure in the outer corner portion, in which the side end portion of the plastic panel 1 is cut in the vertical direction with a constant width, and the plywood 9 is abutted on the cut side at a right angle to form the pier 10. And fix it, panel 1
Is fixed by the vertical flap 5.

[0004]

As described above, when the panels are connected at a right angle, it is necessary to manufacture a special mold on site. In order to assemble the formwork, it is necessary to process the formwork into an accurate size in consideration of the finish, and not only skill is required, but there is also a problem that the work and production of the formwork are troublesome and work efficiency is low. In particular, it was not something that anyone could do with skill to prevent twisting and distortion and to assemble them at a right angle. Further, since the formwork having a special size manufactured on site cannot be reused, a large amount of waste material is generated. This leads to waste of resources and destruction of the natural environment.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a concrete formwork connecting member which can be accurately assembled by anyone, improves the working efficiency of assembly, and connects plastic panels at a constant angle. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, a concrete formwork connecting material according to claim 1 of the present invention integrally connects two rectangular face plates at side ends in the longitudinal direction. On the opposite side to form an opening, a triangular side wall plate is provided on the end surface, the inner surface is connected by a plurality of triangular reinforcing plates, and further, a plurality of concave portions closed at least on the connecting portion side are formed on the outer surface of each face plate. To form a continuous sealing surface at the end, and the same surface as the sealing surface between the recesses as a contact surface, and a pin insertion hole for inserting the pin of the connecting clip is formed in a portion other than the sealing surface. It is characterized by being set up.

The concrete formwork connecting member according to a second aspect of the present invention is characterized in that the face plates are connected at a right angle. Further, the concrete formwork connecting material according to a third aspect is characterized in that the concave portion is released on the opening side. The concrete formwork connecting material according to a fourth aspect is characterized in that the concave portion is closed even on the opening side. Further, the concrete formwork connecting material according to a fifth aspect is characterized in that the pin insertion hole is provided in the recess.

To form the concrete formwork connecting material, for example, plastics such as polypropylene, polyester, polystyrene (PS), polycarbonate and ABS resin can be used. These resins can be used alone or together with a reinforcing material such as glass fiber or a filler such as talc.

[0009]

Therefore, according to the first aspect of the present invention, it is possible to assemble the concrete panel at a predetermined angle by merely abutting the side wall plate of the concrete panel on the face plate. In addition, since the outer surface of the face plate is formed with a recess, deformation during molding is prevented, the sealing surface allows close connection, and the pin insertion hole allows the use of a connecting clip for easy connection with the panel. Is. According to the second aspect, since it is formed in a right angle in advance, it is possible to assemble with accurate dimensional accuracy. Further, according to the third aspect, since the concave portion provided on the face plate is released on the opening side, the adhesion of the sealing surface is improved. According to the fourth aspect, the sealing surfaces are formed at both end portions in the longitudinal direction, and the sealing surfaces can be brought into close contact with each other. Further, in claim 5,
Since the pin insertion hole is provided in the concave portion, the contact surface can be pressed more strongly.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 are concrete formwork connecting members according to the present invention, wherein FIG. 1 is a perspective view, FIG. 2 is a partially enlarged perspective view, FIG. 3 is a partially front view, and FIG. 4 is a partially rear view. Figure 5
Is a sectional view. The connecting material main body 11 is formed by forming rectangular face plates 13 and 13a connected to a concrete panel at a right angle, providing triangular side wall plates 15 on the end faces, and connecting the inner faces with a plurality of triangular reinforcing plates 17. Therefore, the face plates 13, 1
A substantially V-shaped groove is formed on the inner surface of 3a. The face plate 1
The height dimension of 3, 13a is the same as the height of the side wall plate of the panel to be connected, and the length dimension is the same as the length of the panel.

Next, since the outer shape of the face plates 13 and 13a is the same, the outer shape of the face plate 13 will be described. On the outer surface of the face plate 13, a large concave portion 21 and a small concave portion 23 which are closed on the connecting portion 19 side and opened on the opposite opening 20 side.
And the open recesses 25 are also formed on both sides of the triangular side wall plate 15. The recesses 21, 23 and 2
The depth of 5 is 2-3 mm, and the large concave portion 21 and the small concave portion 2 are
3 are alternately formed, and the recess 25 is formed adjacent to the small recess 23. The surfaces other than the concave portions are smooth continuous surfaces, and the end edge portion on the coupling portion 19 side forms a continuous sealing surface 27, between the large concave portion 21 and the small concave portion 23, and between the small concave portion 23 and the concave portion. The area 25 is a contact surface 29 that abuts the side wall of the panel.

A pin insertion hole 30 for inserting a pin of a connecting clip is formed in the small recess 23, and the contact surface 2 is formed.
A positioning small hole 31 is formed in 9 to stop the connecting clip at a predetermined position. In this embodiment, the pin insertion hole 30 is formed on the opening side of the positioning small hole 31. Since the positioning small hole 31 corresponds to the positioning projection provided on the inner surface of the connecting clip, it can be omitted if the connecting clip is not provided with the positioning projection. .

As described above, since the large concave portion 20, the small concave portion 23, and the concave portion 25 are formed on the outer side surfaces of the face plates 13 and 13a to form the concave and convex surface, deformation at the time of molding is prevented, and the panel is connected. At this time, only the sealing surface 27 at the edge portion comes into close contact. In addition, the outer surface is pressed against the contact surface 29 when connected.
Therefore, the overall sealing performance is further improved. The size of each of the recesses can be arbitrarily determined, and may be appropriately determined in consideration of the material and size of the plastic panel. Further, each of the recesses may have a shape closed on the opening side and both ends. In this case, each of the recesses is closed on all four sides, and the seal surfaces 27 are formed in parallel at the respective edge portions of the connecting portion 19 side and the opening portion 20 side. Further, although the pin insertion hole 30 is formed in the small recess 23 in the above-described embodiment, it may be directly formed in the contact surface 29 without forming the small recess 23. Therefore, the small recess 23 can be omitted. Further, in the above embodiment, the case where the face plates 13 and 13a are connected to each other at a right angle has been described, but the present invention is not limited to the case of a right angle, and it goes without saying that the connection angle can be changed according to the application.

Next, an example of use of the connecting member body 11 will be described with reference to FIGS. 6 and 7. First, the tip of the connecting portion 19 of the connecting material main body 11 is placed on the outer corner portion positioned by the marking, and the side wall plates of the face plates 13 and 13a are aligned. Next, the side wall plates of the plastic panels 33, 33a are butted against each other, and the pin 37 of the connecting clip 35 is inserted into the pin insertion hole provided in the side wall plate of the panel and the pin insertion hole 30 of the connecting material main body 11 to be sandwiched by the holding plate 39. It may be connected by being held. In this way, the face plates 13, 1
Since 3a is formed at a right angle and the pin insertion hole is formed at the same position as the panel, it can be assembled at a right angle and accurately by simply abutting the side wall plates of the panel.

[0015]

As described above, the concrete formwork connecting material according to the present invention can connect the panels accurately at a predetermined angle, and does not require on-site formwork production. Therefore, the work of assembling the formwork can be performed efficiently, and no waste material is produced. Also,
Since the concave portion is formed on the outer side surface of the face plate to provide the seat surface and the contact surface, the side wall plate of the panel can be completely adhered and connected.

[Brief description of drawings]

FIG. 1 is a perspective view of a connecting member main body.

FIG. 2 is a partially enlarged perspective view of the same.

FIG. 3 is a partial front view of the same.

FIG. 4 is a partial rear view of the same.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is an explanatory plan view showing a usage example.

FIG. 7 is a partially enlarged perspective view of the same.

FIG. 8 is an explanatory plan view showing a combination of a conventional panel and plywood.

FIG. 9 is a plan view for explaining the combination of the panel and the plywood at the corners.

[Explanation of symbols]

 11 Connecting Material Main Body 13 Face Plate 13a Face Plate 15 Triangular Side Wall Plate 17 Triangular Reinforcing Plate 19 Connecting Part 20 Opening 21 Large Recess 23 Small Recess 25 Small Recess 27 Sealing Surface 29 Contact Surface 30 Pin Insertion Hole 31 Positioning Hole 33 Panel 33a Panel 35 Connection Clip 37 pin 39 clamping plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Fumio Otsuka, No. 1 Nobezawa, Kaisei-cho, Ashigarashami-gun, Kanagawa Prefecture Meiji Rubber Kasei Kanagawa Plant (72) Noriyoshi Maruyama No. 19-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Yoshikazu Takei 2-19-1 Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Migameo Kobayashi Tokyo, Chofu City Tobita 19-21 No. 1 Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Shigeo Watanabe No. 19-1 Tobita, Chofu, Tokyo Metropolitan Government Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Hiroshi Kitano 1-2-2 Moto-Akasaka, Minato-ku, Tokyo No. 7 Kashima Construction Co., Ltd.

Claims (5)

[Claims] 1. Two rectangular face plates are integrally connected at a side end in a longitudinal direction to form an opening on the opposite side, a triangular side wall plate is provided on an end face, and an inner surface is connected by a plurality of triangular reinforcing plates. Further, a plurality of recesses closed at least on the side of the connecting portion are formed on the outer surface of each face plate to form a continuous sealing surface at the edge portion, and the same surface as the sealing surface between the recesses is contacted. A concrete formwork connecting material, characterized in that a pin insertion hole for inserting a pin of a connecting clip is formed in a portion other than the sealing surface. 2. The concrete formwork connecting material according to claim 1, wherein the face plates are connected at right angles. 3. The concrete formwork connecting material according to claim 1, wherein the recess is open on the opening side. 4. The concrete formwork connecting material according to claim 1, wherein the recess is also closed on the opening side. 5. The concrete formwork connecting material according to claim 1, wherein the pin insertion hole is provided in the concave portion.