JPH0649756Y2 - Panels for concrete formwork - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a concrete formwork panel in which the work efficiency is improved by reducing the number of assembly members of the concrete formwork and simplifying the assembly.

[Prior Art] Generally, in the construction of concrete structures such as buildings,
To construct a concrete wall on each floor, form a pair of formwork on the floor surface at intervals of the thickness of the wall into a wall shape that extends to the ceiling surface, and concrete is placed in the formwork. .

By the way, in this type of concrete structure, not only the height from the floor surface to the ceiling surface may differ from floor to floor, but also the height may vary from building to building.

Therefore, in order to enable the concrete formwork to be efficiently framed on each floor even if the height from the floor surface to the ceiling surface is different, the applicant has made a rectangular-shaped veneer plate a of a predetermined size as shown in FIG. A plurality of aluminum reinforcing rods b, b, including both side edges, are attached and fixed in parallel to one surface along the longitudinal direction, and the lower end portions b ', b' ... Veneer plate a of each of the reinforcing rods b, b. Invented the concrete formwork panel A which is projected by a required size from the lower end of the above, and filed a patent application earlier.

This concrete formwork has a panel A as shown in the figure.
Are placed facing each other at intervals of the thickness of the wall, are parallel to each other and are connected to each other, and further, the horizontal rods c, c, c are fixed by the separator d and the wedge e which are horizontally abutted. , A shortage veneer a'is added to the bottom edge in a horizontally elongated shape with the floor surface, and at least the upper half of the added veneer a'is respectively added to the lower ends b ', b of the reinforcing rods b, b. Let's support it.

Then, when the distance from the floor surface to the ceiling surface is different on each floor, the height of the veneer plate a ′ is appropriately changed and cut on each floor to adjust the overall height. Further, when the veneer plate a'is usually 10 cm or more, the horizontal rod c is further horizontally fixed and reinforced so that the part can withstand the pressure of the poured concrete.

[Problems to be solved by the device]

In this way, the improved concrete formwork panel relating to the applicant's patent application can easily be used in a place where the height between the floor surface and the ceiling surface is different, and conventionally, the height suitable for each site is used. It is no longer necessary to prepare various types of concrete formwork panels in steps of several cm. However, the attachment of the horizontal rods to be brought into contact with these formwork panels A occupies a large proportion in many assembling steps, and as shown in FIG. 11, they are erected in parallel at regular intervals. A lot of time and labor is required to hold the horizontal rod c between both ends of the separator horizontally mounted between the concrete formwork panels A and to strike the wedge e to fix the horizontal rod c.

Therefore, the concrete formwork panel of the present invention does not require a horizontal rod for on-site construction and can be easily assembled.

[Means for Solving the Problems]

The concrete formwork panel of the present invention has aluminum-made reinforcing edge rods fixedly mounted on one surface of a rectangular-shaped veneer plate of a predetermined size along both longitudinal edges, and the lower end portions of these reinforcing edge rods are A required size is projected from the lower end edge of the veneer plate, and further, a plurality of horizontal reinforcing rods and vertical reinforcing rods are combined and arranged in a substantially lattice shape in the longitudinal direction and the lateral direction between these reinforcing edge rods. A plurality of elongated holes are conventionally provided on the front surface of each of the lateral reinforcing rods.

[Action]

The concrete formwork panels constructed in this way are arranged side by side in a vertical direction on the upper edge of a horizontally elongated flexible formwork panel that stands upright on the floor at the construction site. While connecting the frame panels respectively, project both ends of each separator that is placed horizontally between the mold panels that are arranged opposite to each other through the long holes of the horizontal reinforcing rods, and punch wedges into this to form each concrete formwork. Firmly fix the panel for use.

〔Example〕

An embodiment of the concrete formwork panel of the present invention will be described below with reference to the drawings. The first panel for concrete formwork
As shown in the figure, one side of the rectangular veneer plate 1 (180 cm in length, 60 cm in width) has a reinforcing rod made of aluminum on both side edges in the longitudinal direction.
2 and 2 are attached and fixed, a wood board 3 is fixed along the upper edge of the veneer board 1, and a horizontal reinforcing rod 4 and a vertical reinforcing rod 5 made of aluminum are respectively provided between the reinforcing edge rods 2 and 2. Are assembled in a grid pattern.

As shown in FIG. 5, the lateral reinforcing rods 4 (4a to 4c) have a U-shaped cross section. A plurality of elongated holes 6 are formed in the front end face of the lateral reinforcing rods 4 and vertical reinforcing rods are provided at predetermined positions on the lower surface or upper and lower surfaces thereof. 5
It is formed by providing a plurality of protrusions 7 that fit into the upper and lower ends of the upper and lower ends, and the left and right ends are sandwiched by the support pieces 8,8 attached to the inner side surfaces of the respective reinforcing edge rods 2,2. The reinforcing rod 4a is attached below the upper end of the veneer plate 1 by a required dimension, and the lowermost horizontal reinforcing rod 4c is attached above the lower end of the veneer plate 1 by a required dimension.
The horizontal reinforcing rod 4b is arranged in the middle. Then, a plurality of vertical reinforcing rods 5, 5, ... Are attached between the lateral reinforcing rods 4a and 4b, between 4b and 4c, and below 4c, respectively. Each of these vertical reinforcing rods 5 is also formed to have a U-shaped cross-section having the same shape as the horizontal reinforcing rod 4, and its upper and lower ends or upper ends are fitted and fixed to the projecting portions 7 provided on the respective horizontal rods 4a to 4c. The vertical reinforcing rod 5 below the lateral reinforcing rod 4c has a lower end projecting from the lower end edge of the veneer plate 1 by a required size, like the reinforcing edge rod 2. Further, through holes 11 and 12 through which the connecting fitting 9 and the bar 10 are inserted are formed at predetermined positions of the reinforcing edge rods 2, 2.

As shown in FIG. 4, the long hole 6 has a circular hole 6a having a diameter longer than the width of the long hole 6 continuously provided at one end thereof, and further at the center position of the long hole 6 as shown in FIG. A notch 6b which is continuous with the elongated hole 6 and has the same width is provided. This is because the fasteners 24 that are screwed into both ends of the separator 21, which will be described later, are fitted and locked, and the width of the long hole 6 has a width of the fasteners 24 as shown in FIG.
The body of the circular hole 6a can be inserted, and the circular hole 6a can be inserted by the collar portion 24a.

Next, the procedure for assembling the formwork with the concrete formwork panel of the present invention thus constructed will be described.

First, along the straight line on the floor surface F, the support fittings 13
Place and fix. As shown in FIG. 2, these support fittings 13 are provided with a screw rod 15 standing on an upper surface of a horizontal base plate 14, and the screw rod 15 is installed.
A nut 16 for height adjustment is screwed into 15, and an L-shaped receiving plate 17 is loosely fitted and placed on the upper surface of the nut 16 to form the base plate.
A wooden retainer plate 18 is placed on the retainer plate 14, and a plurality of concrete nails 19 are driven from above the retainer plate 18 to firmly fix each support fitting 13 to the floor surface F.

Next, according to the height from the floor surface F to the ceiling surface C of the construction site, another veneer plate 1 is cut along the longitudinal direction at a desired height dimension to form a plurality of mold panel flexible panels 20. Then, the flexible panel 20 for each formwork is turned sideways, and its lower end edge is placed on the horizontal piece 17a of the receiving plate 17 of the support fitting 13 and sandwiched between the screw rod 15 and the vertical piece 17b of the receiving plate 17. Fix it in place. Then, the nuts 16 are adjusted so that the mold flexible panels 20 are sequentially erected vertically while maintaining parallel to the floor surface F.

Then, three concrete formwork panels are provided on the upper end surface of the flexible panel 20 for each formwork, with each reinforcing edge rod 2, 2 and the vertical reinforcing rod.
Place it so that the protruding lower ends of 5, 5 are located at the bottom,
The veneer plate 1 and the flexible panel 20 for formwork are integrally fixed so as to form a single plate.

Then, the adjacent concrete formwork panels are connected to each other by inserting the connecting fittings 9 into the through holes 11 provided in the reinforcing edge rods 2, 2 which are in contact with each other, and further inserting the barbs 10 into the through holes 12. In this way, the flexible panel 20 for each formwork and the panel for each concrete formwork are sequentially assembled, and are assembled in a wall shape that stands upright below the floor surface.

Further, as shown in FIG. 3, a plurality of separators 21 are laid horizontally between the concrete formwork panels standing in parallel with each other with a constant space (wall thickness). The separator 21 is the ninth
As shown in the figure, stop pieces 22 and 2 should be
2 is fixed, and screw grooves 23, 23 are engraved on the outside of each stop piece 22, 22. Numerals 24, 24 are fasteners for the separator 21, which are provided at one end with a screw hole 25 to be screwed into the screw groove 23 and have a wedge 26 at the body.
It is formed by penetrating through holes 27, 27 for inserting the.

The fastener 24 is provided with a circular hole 6 at one end of the elongated hole 6 from the side of the flange 24a.
If you insert it in a and hang it in the notch 6b and install it in advance, it will be easy to screw it into the separator 21,
You will not lose it.

Each of the separators 21 is formed with a through hole at a position corresponding to the elongated hole 6 of each of the lateral reinforcing rods 4a to 4c of the veneer plate 1 of the concrete formwork panel facing each other, and both ends thereof are inserted into these through holes. Let me support you. Then, the fasteners 24 in the elongated holes 6 provided on the front surfaces of the lateral reinforcing rods 4a to 4c are inserted, and the screw holes 25
Is screwed into the thread groove 23 and tightened, and the lateral reinforcing rod is further tightened.
The wedge 26 is inserted into the through hole 27 on the front surface of 4a to 4c. As a result, the opposing concrete formwork panels are firmly fixed. Then, the wooden board 3 fixed to the upper end of each concrete form panel is nailed 29 to the form 28 stretched on the ceiling surface C and fixed. Further, 30 is a splint that closes a gap between the lower edge of the mold frame free panel 20 and the bottom of the floor supported by the plurality of support fittings 13, and has a thickness higher than the gap, It is sandwiched and fixed by each formwork panel 20 and the positioning wall 31 extending to the base plate 14 of each support fitting 13 so that the poured concrete does not overflow from the gap.

When the height of the mold panel 20 is normally 10 cm or more, the horizontal rod 32 may be horizontally abutted and fixed by the wedge 26 in the same manner as in the conventional case in order to reinforce that portion.

Further, when the distance between the floor surface F and the ceiling surface C is very long at the construction site and the height dimension of the concrete formwork panel is insufficient, the veneer plate 1 having a longer height dimension is used. In this case, although the reinforcing edge rod 5 needs to be newly made long, the horizontal reinforcing rods 4a to 4c and the vertical reinforcing rod 5 in between can be easily manufactured by simply adding the same ones used in these examples. .

[Effect of device]

As described above, in the concrete formwork panel of the present invention, the reinforcing edge rods are fixed along both longitudinal end edges of one surface of the plywood board, and a plurality of horizontal reinforcing rods and a vertical reinforcement rod are provided between these reinforcing edge rods. Since the reinforcing rods are assembled in the form of a lattice, it is possible to obtain the same strength without fixing the horizontal rod, which has been conventionally required, and to prevent the concrete from bulging due to the pressure. Further, since the separator for holding the interval between the facing molds is supported by the lateral reinforcing rods, the horizontal rods are not necessary, and the work of assembling the molds at the construction site is also carried out. However, it is significantly simplified as compared with the conventional construction method, and contributes greatly to the improvement of work efficiency.

[Brief description of drawings]

FIG. 1 relates to an embodiment of the concrete formwork panel of the present invention. FIG. 1 is a perspective view, FIG. 2 is a perspective view for explaining the assembly of the formwork panel, and FIG. 3 is the same assembly. 4 is an enlarged front view of the lateral reinforcing rod, FIG. 5 is an enlarged sectional view of the same, FIG. 6 is an enlarged plan view of the same, and FIG. 7 is a partially enlarged perspective view of a vertical reinforcing rod. FIG. 8 is an enlarged side view of an essential part showing a connection state of concrete formwork panels, FIG. 9 is a perspective view of a separator, FIG. 10 is a perspective view showing an assembled state of a conventional concrete formwork panel, and FIG. The figure is the same sectional view. 1 ... Veneer board, 2,2 ... Reinforcing edge rod, 4 (4a-4c) ... Horizontal reinforcing rod, 5 ... Reinforcing rod, 6 ... Long hole

Claims (1)

[Scope of utility model registration request] 1. A rectangular-shaped veneer plate of a predetermined size is provided with aluminum reinforcing edge rods on both sides in the longitudinal direction on one side thereof, and the lower end portions of these reinforcing edge rods extend from the lower edge of the veneer plate. A required dimension is projected, and further, a plurality of horizontal reinforcing rods and vertical reinforcing rods are arranged in a substantially lattice-like combination in the longitudinal direction and the lateral direction between these reinforcing edge rods, respectively. A concrete formwork panel characterized by having multiple long holes on the front.