JPH0643140U - Formwork panel - Google Patents

Abstract

(57) [Summary] (Modified) [Structure] Ribs 1 to 5 having different heights are projected in a grid pattern on a rectangular dam plate (6), and the whole is made of a composite material in which synthetic resin is reinforced with fibrous material. An integrally molded architectural form panel. [Effect] Since it is formed of a composite material in which a synthetic resin is reinforced with fibers, it is possible to suppress an increase in the weight of the entire panel while maintaining necessary strength. The resin that makes up the panel has excellent releasability from concrete, so the panel is easy to maintain and can be used repeatedly.
The panel can be manufactured easily and efficiently by press molding of resin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a formwork panel used for concrete construction.

[0002]

[Prior art and its problems]

 Conventional forms of this kind are formed from wood, mainly lauan, and are usually discarded after several uses. Since the conventional formwork is a consumable item in this way, the amount of wood used increases, and the destruction of the natural environment poses a problem.

It is considered to use aluminum or synthetic resin in place of wood, but it is difficult to handle due to its heavy weight, or due to insufficient strength, it does not fit within the standard size of conventional wood panels. As for the separator, home tie, and L-shaped fastening metal fittings required for the panel assembly, it was difficult to use the conventional ones. The present invention discloses a formwork panel that can solve the above problems.

[0004]

[Means for solving the problem]

 According to the present invention, a home tie (72), a vertical tab (8), a lateral tab (81) and an L-shaped metal fitting ( 9) A formwork that is supported by 9) and forms a space for pouring concrete. Ribs are regularly projected on the inner and outer surfaces of the rectangular dam plate (6), the outer peripheral edge of the outer surface, and the plate surface. The weir plate (6) is provided with a plurality of separator insertion holes (46), and the seat plate (74) of the home tie (72) and the L-shaped metal fitting (9) are provided at the edge of the insertion hole and in the vicinity thereof. ) Has a hitting part (45) (51) at the same height from the inner surface of the weir plate (6), and the corresponding part (45) (46) is more than the other part of the weir plate. It is made large in the plate thickness direction, and the entire panel is integrally molded with a composite material in which synthetic resin is reinforced with fibers.

[0005]

[Action and effect]

 The formwork panel is made of a composite material reinforced with synthetic resin fibrous, and ribs are formed on the dam plate (6), so that the increase in the weight of the entire panel is suppressed while maintaining the required strength. You can

At the edge of the separator insertion hole and its vicinity, weird parts (45) and (51) for contacting the seat plate (74) of the home tie (72) and one end of the L-shaped metal fitting (9). Since it is formed at the same height from the inner surface of the plate (6), there is no hindrance to the use of the conventional home tie (72) and L-shaped metal fitting (9).

Since the resin forming the panel has an excellent releasability from the concrete, the panel can be easily maintained and can be repeatedly used without fear of corrosion. The panel can be manufactured easily and efficiently by press molding of resin.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. As shown in FIG. 1, the formwork panel has ribs (4) (3) (2) (1) regularly projected on the inner and outer surfaces of the rectangular barrier plate (6), the outer peripheral edge of the outer surface, and the plate surface. I have set up.

The panel is formed by pressing a composite material for press molding (trade name Azdel, manufactured by Ube Nitto Kasei Co., Ltd., specific gravity 1.19) in which a thermoplastic resin is reinforced with a long glass fiber mat. The dam plate (6) of the formwork panel has a long side length of 1800 mm, a short side length of 600 mm and a thickness of 2 mm.

There are five types of ribs depending on the projecting height (the thickness of the dam plate is not included below). The ribs have a protruding height of 70 mm and a fourth thickness of 5 mm at the outer peripheral edge of the dam plate (6) and at a pitch of 200 mm vertically and horizontally. Ribs (4) are protruding. The thickness of the weir plate (6) of 2 mm and the protruding height of the fourth rib (4) of 70 mm make it suitable for a combination of a conventional 12 mm thick wooden panel and a 60 mm square steel pipe, that is, a 72 mm thick panel construction method. ing.

Inside the 27 square basic regions (41) surrounded by the fourth ribs (4), the third ribs (3) having a projection height of 34 mm and a thickness of 4 mm are projected at a pitch of 100 mm vertically and horizontally. There is.

In each square area surrounded by the third ribs (3), second ribs (2) having a height of 14 mm and a thickness of 3 mm are projected at a pitch of 50 mm in length and width.

In each square area surrounded by the second ribs (2), first ribs (1) having a height of 5.5 mm and a thickness of 2 mm are projected at a pitch of 25 mm vertically and horizontally.

Of the 27 basic regions (41), only the basic region located at the center of the plate and the three basic regions (41a) apart from the region in the longitudinal direction of the plate are other than the basic region. The rib arrangement pattern is different from that of the basic area (41).

As shown in FIG. 2, three square areas (42), (43) and (44) of large, medium and small are concentrically formed in the above three basic areas (41a) to form a large area. (42) has a side of 150 mm, and is surrounded by a fifth rib (5) having a protruding height of 10 mm and a thickness of 2 mm.

The middle region (43) has a side of 100 mm and is surrounded by a rib similar to the first rib (1).

The small region (44) has a side of 40 mm and is surrounded by the same rib as the third rib (3).

An oblique rib (31) similar to the third rib (3) is provided from the corner portion of the small area (44) through the middle area (43) and the corner portion of the large area (42). From above the diagonal ribs (31), ribs similar to the ribs are provided so as to directly intersect the fourth ribs (4) of the basic region (41).

The plate thickness in the small region (44) is 12 mm, and as shown in FIG. 6, a separator insertion hole (46) having a diameter of 10 mm is opened in the center and the hole (46) is formed on the inner surface of the panel. A step portion (47) having a diameter of 14 mm and a depth of 2 mm is formed at the hole edge of (). The pitch of the separator insertion holes (46) is 600 mm, which is the same as that of the conventional wooden panel.

On the outer sides of the four sides of the small region (44), ribs similar to the fifth ribs (5) are provided so as to project in parallel at a pitch of 8 mm, three ribs each orthogonal to the sides. The height of the upper end of the parallel rib (5a) is 12 mm from the inner surface of the panel, and the plate thickness of the small area (44) is also 12 mm, which is the same as the plate thickness of the conventional wooden form panel. It was made. The plate surface of the small area (44) is the contact portion (45) of the seat plate (74) of the separator (7), and the upper end surface of the parallel rib (5a) is the contact portion (51) of the L-shaped metal fitting (9). There is.

The outer peripheral ribs (4) of the barrier plate (6) are provided with clip holes (48) having a diameter of 14 mm for clipping adjacent panels at a pitch of 300 mm from a position 150 mm from the end of each rib. The nail holes (49) have been opened at a pitch of 50 mm.

When a panel of a size other than the standard size is needed, a wooden panel is manufactured and used on site. The panel of the present invention and the wooden panel are the same as the nail holes (49 ) Can be nailed in to connect.

The plate thickness and each rib of the formwork panel described above are calculated from the mechanical strength of the composite material forming the panel to a value calculated to ensure the performance comparable to the strength of the conventional wooden formwork panel. It is decided based on. The panel weighs about 12.4 kg, which is about 23% lighter than the conventional wooden panel weighing about 16 kg.

However, as shown in FIGS. 7 and 8, the formwork panels are arranged so as to face each other with the separator (7) sandwiched therebetween, with the rib surface thereof facing outward, and the screw part (71) of the separator (7) is attached to the panel. It is exposed to the outside through the separator insertion hole (46). Adjacent panels have the clip holes (48) aligned and a clip (not shown) is fitted to connect them detachably.

The home tie (72) is screwed into the screw part (71), the vertical tab (8) is applied to the fourth rib (4) of the panel, and the panel is laid from the outside of the vertical tab (8). Hit (81).

The home tie (72) is fitted into the through hole (92) on one side of the L-shaped metal fitting (9), and the other end of the metal fitting is brought into contact with the contact portion (51) on the parallel rib of the panel, and the home tie (72) is attached. The wedge (91) is driven into the slit (73) and held by the L-shaped metal fitting (9).

Since the height of the contact parts (45) (51) from the inner surface of the plate matches the thickness of the conventional wooden panel, the conventional home tie (72) and L-shaped metal fitting (9) remain unchanged. Can be used.

The formwork panel has a multiple rib structure in which ribs having different heights are combined in a grid pattern vertically and horizontally on the dam plate (6), and the dam plate (6) and the ribs are made of thermoplastic material. Since it has an integral structure in which resin is press-molded with a composite material for press-molding reinforced by long glass fiber mats, the surface pressure of concrete filled between the panels is changed from the weir plate (6) to the first rib (1). ), The second rib (2), the third rib (3), and the fourth rib (4) can be sequentially and efficiently transmitted in a uniform manner. Therefore, the barrier plate (6) can be made thin, and the weight of the entire panel can be reduced, and distortion of the barrier plate (6) can be prevented to smooth the concrete surface to be molded.

Since the ribs are provided so as to project in a vertical and horizontal lattice pattern, the panel can be used in any of vertical and horizontal directions. Since the thickness of the panel is the same as that of one of the conventional construction methods, it is possible to flexibly accommodate changes in construction methods and combinations of construction methods.

Since the resin forming the panel has excellent releasability from concrete, it is easy to remove the panel and maintain the panel itself after removal, and it can be repeatedly used without fear of corrosion.

In FIG. 7, unnecessary ribs for explaining the panel assembly are omitted.

FIG. 6 shows a state where the hole (46) is closed by a synthetic resin cap (11) when the separator insertion hole (46) is not used. The cap (11) has a shaft (13) projecting from a disk (12) that fits into the step (47) of the hole (46), and a conical retaining piece (14) that can be expanded and contracted at the tip of the shaft. It is a projecting piece. When the cap (11) is inserted into the hole (46) from the retaining piece (14) side, after the retaining piece passes through the hole, it elastically returns and catches on the plate surface to prevent retaining. The cap (11) can be pulled out from the hole (46) by taking the retaining piece (46) and reducing the diameter.

If the ribs are gradually thinned from the dam plate (6) side to the tip side to form a draft slope with respect to the press die, the die can be smoothly depressed. Can

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims for utility model registration.

[Brief description of drawings]

FIG. 1 is a front view of a panel.

FIG. 2 is an enlarged front view and a sectional view of a panel.

FIG. 3 is a side view of the panel.

FIG. 4 is a cross-sectional view of a rib.

FIG. 5 is a front view of the vicinity of a separator insertion hole.

FIG. 6 is a sectional view of the vicinity of a separator insertion hole.

FIG. 7 is a perspective view of a panel set.

FIG. 8 is a sectional view of a panel set.

[Explanation of symbols]

Claims (1)

[Scope of utility model registration request] 1. Arranged oppositely with a separator (7) interposed therebetween,
It is held by Home Tie (registered trademark) (72), vertical tab (8), horizontal tab (81) and L-shaped metal fitting (9) connected to both ends of the separator (7) to form a space for pouring concrete. It is a formwork panel for making regular ribs (4) (3) on the inner and outer surfaces of the rectangular barrier plate (6), on the outer peripheral edge of the outer surface and on the plate surface.
A plurality of separator insertion holes (46) are formed in the weir plate (6), and home ties are provided at the edge of the insertion holes and in the vicinity thereof.
The seat plate (74) of (72) and an abutting part (45) (51) for applying one end of the L-shaped metal fitting (9) are provided at the same height from the inner surface of the weir plate (6), and the corresponding part ( 45) (46) is a formwork panel which is formed to be larger in the plate thickness direction than the other parts of the barrier plate and is integrally molded with a composite material in which the entire panel is reinforced with a fibrous synthetic resin.