JPS6316775Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a formwork used for forming concrete buildings, and more specifically to a formwork whose forming width can be freely adjusted.

The general construction method for constructing concrete buildings is to construct the frame using plywood or steel formwork, and then pour concrete into the frame while supporting the formwork with timbers or pipe supports. It is something that is done by hand.

By the way, the width and length of columns and beams in concrete buildings vary depending on the structure and size of the building.

For this reason, in conventional formwork structures, when the width and length of columns and beams change, formwork with dimensions that can accommodate this change must be prepared each time, and for this reason, the type of formwork changes. The large number of molds not only makes material management troublesome, but also makes it difficult to reuse each formwork many times, creating an economical problem in that a large amount of equipment costs are required.

This idea was made to solve the problems mentioned above, and it can accommodate a wide range of width changes by increasing or decreasing the number of combinations, reducing the number of types of formwork required to construct columns and beams. The aim is to provide an economical formwork that can be reused many times and can be reused many times.

The structure of this invention is that circular shafts are arranged in series on the longitudinal edge of one side wall of the formwork body, a cylindrical body with an inner diameter into which the circular shaft fits is provided on the edge of the other side wall, and the peripheral wall of this cylindrical body A groove with a width that allows the plate thickness of one side wall to fit is provided in the one side wall, and a long hole through which the thickness of the peripheral wall of the cylindrical body passes through is provided in the circular axis coupling part of the one side wall, and the required number of formwork bodies are connected. This allows the molding surface width to be freely adjusted.

This invention will be explained below based on the embodiments shown in the accompanying drawings.

As shown in the figure, the formwork 1 of this invention includes a plurality of formwork bodies 2 connected in parallel in sequence, a connecting formwork 3 connected to the formwork bodies located at one end, and a formwork 3 at the other end. The formwork 1 is constructed in combination with a connecting member 4 connected to a formwork main body located at , and in the illustrated case, this formwork 1 is used for a column or a beam.

As shown in FIGS. 2 to 4, the mold body 2 has side walls 6 and 7 on both sides along the longitudinal direction of the vertically long molding substrate 5, which face each other so as to protrude toward the side opposite to the molding surface. end walls 8 and 9 with connection holes with the column formwork are provided at both the upper and lower ends of the molded substrate 5, a circular shaft 10 is connected along the longitudinal direction to the outer edge of one side wall 6, and the other A cylindrical body 11 is formed on the outer edge of the side wall 7 so as to be continuous along the longitudinal direction.

In the form body 2, the width W of the molded substrate 5
is formed to a width of 50 mm, for example, to match the dimensional changes adopted in the width of the column and the length of the beam, and the vertical length dimensions are set to match the formed height of the beam. 10 is provided over the entire length of both the upper and lower ends.

Further, the cylinder body 11 is formed so that its inner diameter fits externally to the circular shaft 10, and the outer part protruding from the outer surface of the other side wall 7 is removed at both upper and lower ends and at the intermediate position, so that the cylinder body is normal. Parts of the body 11 remain at two locations, upper and lower.

A fissure 12 having a width that allows the thickness of the one side wall 6 to fit therein is provided in an inclined shape with respect to the side wall 7 at the position of the outer half of the peripheral wall of the cylinder 11 that protrudes from the outer surface of the other side wall 7. There is.

Furthermore, elongated holes 13 having a width and length into which the circumferential wall of the cylinder 11 fits are provided at vertical positions at the same horizontal height as the cylinder 11 in the circular axis coupling portion of the one side wall 6 .

A circular shaft 10, a cylindrical body 11, a fissure 12 as described above,
By forming the elongated hole 13, as shown in FIG.
and 2 can be pivotally connected by fitting the circular shaft 10 and the cylindrical body 11, and both formwork bodies 2, 2 can be bent within a range of 180° from the state in which the molded substrates 5 are lined up directly. In the vertical direction, the fitting state between the cylindrical body 11 and the elongated hole 13 is maintained.

Therefore, the required number of mold bodies 2 can be sequentially connected in a parallel arrangement, and the molding width formed by the multiple width of the molding substrate 5 can be freely selected. .

The connecting formwork 3 has substantially the same structure as the formwork main body 2, and the same parts as the formwork main body 2 are given the same reference numerals, and a description thereof will be omitted.

The connecting formwork 3 has a circular shaft 10 and a long hole 13 in one side wall 6, and can be pivotally connected to a cylinder 11 in the other side wall 7 of the form body 2, while the other side wall 7a has a circular shaft 10 and a long hole 13. The side wall 7a remains a straight flat plate, and through holes 15 are provided in the side wall 7a for connection to the beam form 31 and the spacing adjustment form 32 with bolts and nuts 14. In addition, in FIG. 2, the use of the adjustment formwork 32 can be omitted by forming the connection formwork 3 long.

Further, the connecting member 7 is for connecting the ends of the adjacent formworks 1, and is attached at a 45° angle to the edge of the connecting plate 15, which is provided with cylinders 11a above and below the middle part in the width direction. An inclined plate 16 and an outer plate 17 are provided in series at the outer end of the inclined plate 16.
There are bolts and nuts 18 that connect the connecting members 4 to each other.
The upper and lower end plates 20 are provided with insertion holes 19 for bolts and nuts 21 to be connected to the column frame 41.
It is formed by providing

In addition, the formwork body 2, the connection formwork 3, and the connection member 4
The constituent material may be appropriately selected from steel, aluminum, synthetic resin, etc.

The formwork of this invention has the above-mentioned configuration and is used at the corner part of a concrete building where a column and a beam intersect. are prepared, each formwork main body 2 is sequentially connected by fitting the circular shaft 10 and the cylindrical body 11, and the connected formwork 3 is connected to the formwork main body 2 at the other end. The connecting member 4 is similarly connected by fitting the circular shaft 10 and the cylindrical bodies 11, 11a to form a formwork 1, and this formwork 1 is connected to the corner portion of the beam intersecting on the column as shown in Fig. 1. The connection members 4 are connected with bolts and nuts 18 with the inclined plates 15 overlapping each other, and each formwork 1 is bent at a right angle at a predetermined position so that the connection formwork 3 is directly connected to the end of the beam formwork 31. Beam formwork 3 through connecting or adjusting formwork 32
Connect with 1.

In the portion of the formwork 1 that is bent at 90 degrees, a corner member 23 in the shape of a square shaft is attached between the adjacent formwork bodies 2 so that the angle portion of the beam becomes a right angle.

In addition, the upper end of the wall formwork 41 is connected to the lower part of each formwork 1 and beam formwork 31, thereby constructing a formwork in which columns and beams are continuous as shown in Fig. 1, and reinforcing bars are installed inside. It is only necessary to pour concrete in a state where the concrete is fully packed, and each formwork 1 can be bent outward, so when dismantling the formwork after the concrete has solidified, the beam formwork 31 and column formwork Only the formwork 1 can be removed while leaving the formwork 41, and the dismantling work can be carried out smoothly.

As described above, according to this invention, a circular shaft is provided on one side wall of the formwork body, and a cylinder is provided on the other side wall, and the formwork bodies are successively connected by fitting the circular shaft and the cylinder body. By selecting the number of frame bodies connected, the forming width can be changed freely, and a single form body can be used to form any column or beam, making it possible to reduce the number of types of formwork. Since it can be used repeatedly many times at the same time, it is possible to significantly reduce equipment costs.

In addition, the formwork body can be bent freely due to the connection between the circular shaft and the cylindrical body, making it possible to form the corner part reliably, making it possible to construct a formwork with excellent strength to withstand the internal pressure when concrete is poured. .

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the state of use of the formwork according to this invention, Fig. 2 is an enlarged cross-sectional plan view of the main parts of the above, Fig. 3 is an exploded perspective view of the main parts of the above, and Fig. 4 is the mold. It is an enlarged sectional view showing a connection part of a frame main body. 1 is a formwork, 2 is a formwork body, 3 is a connection formwork, 4 is a connection member, 5 is a molded substrate, 6 and 7 are side walls, 8 and 9
is an end wall, 10 is a circular axis, 11 is a cylinder, 12 is a fissure,
13 is a long hole.

Claims (1)

[Scope of utility model registration request] A mold body is formed by providing side walls facing each other on both sides of the molding substrate, circular axes are arranged in series on the longitudinal edge of one side wall of the mold body, and circular shafts are provided on the longitudinal edge of the other side wall. A cylindrical body with an inner diameter into which the circular shaft fits is provided, a groove with a width that allows the plate thickness of one side wall to fit is provided in the peripheral wall of this cylindrical body, and a groove of the peripheral wall of the cylindrical body is provided in the portion of the one side wall that is connected to the circular axis. Concrete formwork with long holes wide enough to penetrate through the thickness.