JPH0860860A - Panel made of plastic for concrete form - Google Patents

Abstract

PURPOSE: To improve workability at the time of the assembly of a panel by forming a plurality of recessed sections, in which the panel surface sides are closed and other sides are opened, to the sidewall boards of the periphery of the panel while forming pin inserting holes to abutting surfaces with adjacent panels. CONSTITUTION: A plurality of recessed sections 31, 33, 40, 43, etc., opened to the reverse sides to face boards 21 are formed to the side faces of sidewall boards 23, 25 having reinforcing ribs 29, 27 on the insides while leaving contact surfaces (sealing surfaces) 35 with adjacent panels. Pin inserting holes 39 and nail holes 41 are formed previously to each recessed section, and the sidewall boards 23, 25 are not damaged even when connecting pins and nails are used when the panels are seamed mutually or when the panel is coupled with a panel made of wood. Separator inserting holes 45 are formed previously at the center sections of the panels, and a separator is mounted easily at the time of the assembly of forms. Accordingly, the panel sealing surfaces are fast stuck readily while workability on assembly can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork panel used for producing a concrete structure such as an outer wall of a building by placing concrete, more specifically, a side wall plate when connected in series. The present invention relates to a plastic panel for a concrete formwork that is closely attached to.

[0002]

2. Description of the Related Art Conventionally, wooden panels, metal panels, and plastic panels have been generally used as formwork panels used for pouring concrete. Although wooden panels are lightweight, inexpensive, and easy to use, the panel boards are made from plywood made from veneer, and the cutting of tropical wood prevents the global warming and prevents wild animals. It has become a global problem in terms of protection of the world. Although the metal panel is excellent in durability, it easily rusts and is heavy and requires a great deal of labor for transportation and attachment / detachment. Therefore, in recent years, plastic panels have been used in place of wooden panels and metal panels. Unlike wooden panels, plastic panels do not rot easily and do not require repair. In addition, it is lighter in weight than wooden panels and metal panels and has excellent workability.

FIG. 9 shows an example of a plastic panel currently used. Sidewall plates 3 are erected on four sides of a rectangular face plate 1 which is a concrete placing surface, and the inside of the side wall plate 3 is provided. A plurality of longitudinal reinforcing ribs 5 that connect the side wall plates 3 are provided in parallel with each other. The side wall plate 3 is provided with a clip insertion hole 7 into which a clip pin is inserted. These panels are tightly connected to each other by clips with their side wall plates butted against each other, and are sequentially connected in series. That is, as shown in FIG. 10, the side wall plates 3 and 3 of the panels are butted against each other to be assembled, and the adjacent clip insertion holes 7 are penetrated. Then, the pin 15 of the metal clip 11 is inserted into the penetrating clip insertion hole 7 so that the tip end is projected from the opposite side, and the metal clip 1 is made with the pin 15 as an axis.
1 is rotated to insert the side wall plates 3, 3 between the holding plates 9, 9 of the metal clip 11. Further, the metal clip 11 is rotated while the side wall plates 3 and 3 are sandwiched between the holding plates 9 and 9, and the top plate 10 of the metal clip 11 is brought into contact with the upper surface of the side wall plate 3. In this way, the metal clips 11 are attached to the clip insertion holes 7 and the adjacent panels are integrally connected.

[0004]

The conventional plastic panel has the following problems. That is, the outer side surfaces of the side wall plates 3 and 3 are originally formed as smooth horizontal surfaces, and the outer side surfaces are formed so as to be in close contact with each other when they are butted and connected. However, there is a problem that the plastic is easily deformed when it is taken out of the mold and cooled after molding due to its property, and the side wall plate cannot always be formed in a horizontal plane. Normally, the panel surface of concrete formwork panels is 600 mm x 900 mm, 600 mm x 1
The size is 500 mm, or 600 mm × 1800 mm, and it is difficult to form a side wall plate having such a length on a perfect horizontal surface. For this reason, when the side wall plates 3 are brought into contact with each other to be connected, even if they are tightly connected by the clip 11, the deformed outer side faces do not make close contact with each other, and a slight gap may be formed on the face plate side which is the placing face of concrete. It was

In addition, there are cases where a plastic panel and a wooden panel must be used together at a concrete pouring site. When connecting a plastic panel in series with a wooden panel, clips cannot be used, and a nail must be attached to the side wall plate to fix it. However, hitting a nail may cause cracking or cracking due to the nature of plastic.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an improvement of a conventional plastic panel from the viewpoint of resource saving, and the outer side surface of the side wall plate is completely adhered to each other when the panels are connected to each other, and the sealing property is improved. It is an object of the present invention to provide a plastic panel for a concrete formwork having improved performance.

[0007]

In order to achieve the above object, a plastic panel for concrete formwork according to the present invention is provided with side wall plates on four sides of a face plate and reinforcing ribs inside the side wall plate. In plastic panels,
The outer surface of the side wall plate is formed at a right angle to the surface of the face plate, and a plurality of recesses closed on the face plate side are formed on the outer surface to form a continuous sealing surface at the end edge of the face plate side, and It is characterized in that an outer side surface of a horizontally adjacent portion of the recess is a contact surface, and a clip insertion hole is formed in the contact surface. The recess may be open or closed on the side opposite to the face plate side. Further, the pin insertion hole may be provided in the recess by forming a recess on the contact surface.
Further, a nail hole may be formed in the recess.

As the plastic forming the panel, for example, polypropylene, polyester, polystyrene (PS), polycarbonate, ABS resin or the like can be used. Then, these resins can be used alone or together with a reinforcing material such as glass fiber or a filler such as talc, and are selected so as to obtain sufficient panel strength in consideration of desired bending strength, weight and the like. To be done.

[0009]

The outer surface of the side wall plate is closely contacted with the seal surface formed on the face plate side which is less deformed, and the contact surface is tightly bonded so that the seal surface is further closely contacted. Further, since the nail holes only allow the nails to pass therethrough, the side wall plate will not be damaged even if the nails are struck when connecting with the wooden panel.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 8 are plastic panels according to the present invention, wherein FIG. 1 is a plan view, FIG. 2 is a side view in the longitudinal direction, FIG. 3 is a side view in the lateral direction, and FIG. 4 is a nail hole. FIG. 5 is a partially enlarged sectional view showing a pin through hole of a clip, FIG. 6 is an explanatory perspective view in which a part of four corners is cut away, and FIG. 7 is a sectional view showing an anti-slip material. 8 is a cross-sectional view showing the handle portion. In the illustrated plastic panel, a side wall plate 23 is erected on the side edge in the longitudinal direction of a rectangular face plate 21 serving as a concrete placing surface, and a side wall plate 25 is erected on the side edge in the lateral direction. A basin body is formed by surrounding the four peripheral edges of the face plate 21 with side wall plates 23 and 25.
The outer side surfaces of the side wall plates 23 and 25 are formed at right angles to the surface of the face plate 21. Inside the side wall plates 23 and 25, longitudinal reinforcing ribs 27 connecting the side wall plates 25 are provided.
And a reinforcing rib 29 in the lateral direction connecting the side wall plates 23,
A plurality of each is provided. The reinforcing ribs 27 and 29 at the center in the longitudinal direction are connected via a cylindrical rib 30.

On the outer surface of the side wall plate 23 in the longitudinal direction,
Reinforcing ribs 27, 29 on the other side, which are closed on the face plate 21 side
A concave portion 31 opened to the side and a concave portion 33 opened to the side wall plate 25 side are formed at both ends. The recess 3
The depth of 1 is 2 to 3 mm, and those of the same size are arranged at predetermined intervals. Since the concave portion 31 is closed on the face plate 21 side, it forms a sealing surface 35 that is continuous with the outer edge of the face plate 21 side. In addition, the concave portion 31 and the concave portion 3
3 and between the concave portions 31 and the concave portions 33, that is, the horizontally adjacent portions of the concave portions are contact surfaces 37 when the side wall plates are butted and connected in series. The contact surface 37
A clip insertion hole 39 into which the pin of the binding clip is inserted is formed in this. In this embodiment, the clip insertion hole 39 is formed in the recess 40 formed in the contact surface 37. The recess 40 is closed on the face plate 21 side,
It is open to the reinforcing ribs 27 and 29 on the opposite side. Also,
Nail holes 41 are formed in the recesses 31 and 33.

On the other hand, also on the outer side surface of the side wall plate 25 in the lateral direction, similarly to the side wall plate 3, a recess 31 is formed at the center and recesses 43 are formed at both ends. The outer edge of the face plate 21 on the side of the face plate 21 is a continuous seal face 15, and the horizontally adjacent portions of the recess 31 and the recess 43 are contact faces 37 when the side wall plates are butted and connected in series. A clip insertion hole 39 into which a pin of a binding clip is inserted is formed in a recess 40 in the contact surface 37, and a nail hole 41 is formed in the recess 43.

As described above, by forming the concave portion 31, the concave portion 33, and the concave portion 43 on the outer side surfaces of the side wall plates 23 and 25, respectively, deformation during molding is prevented, and when they are connected and used, At the edge portion on the side of the face plate 21, only the sealing surface 15 is in close contact. Further, since the outer surface is pressed against the contact surface 37 at the time of connection, the overall sealing performance is further improved. The width dimensions of the recess 31 and the recess 43 can be arbitrarily determined, and the combination thereof can be freely selected. It may be appropriately determined in consideration of the material and size of the plastic panel, the reinforcing rib structure, and the like. Further, the recess 33 may be closed on the side wall plate 25 side and may be opened only in the same direction as the recess 31. Further, each of the recesses is a face plate 21.
The shape opposite to the side may be closed. In this case, the sealing surface is formed in parallel with the outer surface of the face plate 21 side and the opposite side edge portions on the opposite side. Further, the number of the nail holes 41 can be increased or decreased and appropriately omitted.

Next, the structure inside the side wall plates 23, 25 will be described. The cylindrical rib 3 connecting the reinforcing rib 27 at the central portion in the longitudinal direction and the reinforcing rib 29 in the lateral direction.
A separator insertion hole 45 is formed in the substantially central portion of 0. In the cylindrical rib 30, the face plate 21 is thicker than the other portions, and an annular convex portion 47 is provided on the peripheral edge of the separator insertion hole 45. in this way,
When the plate thickness of the face plate 21 in the cylindrical rib 30 is made thick and the annular convex portion 47 is provided, it can reinforce the face plate 21 and can be made substantially the same as the plate thickness of the veneer plywood of the wooden panel, Allows the use of standard separators in wooden panels.

Further, the anti-slip members 50 are embedded in the cylindrical holding portions 49 provided at both ends of the reinforcing ribs 27 located on the outer side so that the tips thereof slightly project from the side wall plates 23 and 25 in the horizontal plane. There is. The anti-slip member 50 is a rubber-like elastic body made of natural rubber, synthetic rubber, or elastomer, and is formed into a cylindrical body having a through hole 51 at the center as shown in FIG. Providing the through hole 51 in the central portion facilitates embedding in the cylindrical holding portion 49, and also serves as a clearance when the upper surface of the anti-slip member 50 is pressed and does not damage the upper surface. When the anti-slip member 50 is provided as described above, the face plate 21 contacts the anti-slip member 50 before contacting the side wall plates 23 and 25 and the reinforcing ribs 27 and 29 when horizontally stacked and stored. Therefore, mutual slippage is prevented, and it does not slip off easily.

In the above embodiment, the anti-slip members 50 are provided near the four corners of the face plate 21, but the mounting positions can be changed as necessary to increase or decrease the number. Further, the anti-slip member 50 is not necessarily attached to the reinforcing ribs 27, and may be provided at an appropriate position such as between the reinforcing ribs 27 or between the reinforcing ribs 27 and the side wall plate 23.
Further, the shape of the anti-slip member 50 may be a tape shape or a rod shape in addition to the cylindrical shape. If it is a tape-shaped non-slip material, it may be fixed to the reinforcing rib or the widened portion of the reinforcing rib, and if it is a rod-shaped anti-slip material, it can be attached by embedding it horizontally in the widened part of the reinforcing rib. it can.

As shown in FIG. 8, the reinforcing rib 27 is provided with a grip portion 53. The grip portion 53 is a reinforcing rib 2.
It is formed by hollowing out the face plate 21 side of 7 to form a through hole 55 into which four fingers can be inserted and edging a peripheral portion of the through hole 55 with a convex portion 57. The grip portion 53 is reinforced by the convex portion 57 and can be easily held. In the reinforcing rib 27, the position and the number of the grip portions 53 to be formed may be arbitrarily determined.
For example, it may be formed in the central portion of the reinforcing rib 27 or the reinforcing rib 29. It is also possible to provide a single handle (not shown) independent of the reinforcing ribs 27 and 29. In this way, when the handle portion is provided, even a plastic panel which is slippery in nature can be surely held, and the work of carrying and attaching / detaching can be performed safely.

[0018]

As described above, in the plastic panel according to the present invention, the sheet surface and the contact surface are provided on the outer surface of the side wall plate, so that the face plate side can be completely adhered when connecting in series. . Further, by forming the clip insertion hole in the contact surface, the adhesion of the seat surface is further improved. Further, since the nail hole is formed, the nail can be used for connection with a wooden pallet or the like.

[Brief description of drawings]

FIG. 1 is a plan view of a plastic panel.

FIG. 2 is likewise a side view in the longitudinal direction.

FIG. 3 is likewise a side view in the lateral direction.

FIG. 4 is a partially enlarged sectional view showing a nail hole in a side wall plate.

FIG. 5 is a partially enlarged cross-sectional view showing a clip insertion hole in a side wall plate.

FIG. 6 is an explanatory perspective view in which a part of four corners is cut away.

7 is a cross-sectional view taken along the line AA of FIG.

8 is a cross-sectional view taken along the line BB of FIG.

FIG. 9 is a perspective view in which a part of a conventional plastic panel is cut away.

FIG. 10 is a partial perspective view showing a connected state using a clip.

[Explanation of symbols]

 21 Face plate 23 Side wall plate 25 Side wall plate 27 Reinforcing rib 29 Reinforcing rib 30 Cylindrical rib 31 Recessed portion 33 Recessed portion 35 Sealing surface 37 Contact surface 39 Pin insertion hole 40 Recessed portion 45 Nail hole 43 Recessed portion 45 Separator insertion hole 47 Annular convex portion 49 Circular annular holding Part 50 Anti-slip material 51 Through hole 53 Handle part 55 Through hole 57 Convex part

Front Page Continuation (72) Inventor Fumio Otsuka No. 1 Nobezawa, Kaisei-cho, Ashigaragami-gun, Kanagawa Meiji Rubber Kasei Kanagawa Plant Co., Ltd. (72) Noriyoshi Maruyama No. 19-1 Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Company Technology Research Institute (72) Inventor Yoshikazu Takei 2-1-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Migameo Kobayashi 2-1-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Shigeo Watanabe 2-19-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Laboratory (72) Inventor Kouji Kitano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.

Claims (5)

[Claims] 1. A plastic panel in which side walls are provided on four sides of a face plate and reinforcing ribs are provided inside the side wall plate, wherein an outer surface of the side wall plate is formed at a right angle to a surface of the face plate, and A plurality of recesses closed on the face plate side are formed on the side surface to form a continuous sealing surface at the end edge on the face plate side, and the outer surface of the horizontally adjacent portion of the recess is defined as the contact surface, and the contact surface includes A plastic panel for a concrete formwork, which is provided with a clip insertion hole. 2. The plastic panel for concrete formwork according to claim 1, wherein the recess is open on the side opposite to the face plate side. 3. The plastic panel for concrete formwork according to claim 1, wherein the recess is closed on the side opposite to the face plate side. 4. The pin insertion hole is provided in a recess formed in the contact surface, according to any one of claims 1 to 3.
A plastic panel for concrete formwork according to the item. 5. The plastic panel for concrete formwork according to claim 1, wherein a nail hole is formed in the recess.