JPH07158269A - Form device - Google Patents

Abstract

PURPOSE:To smoothen the surface near the upper end even when a wall body is continued to the upper part of an underground beam by supporting a lathing plate by a pipe mounted on the top end of a separator from the outside. CONSTITUTION:Fasteners 7, 7 are mounted vertically to the reinforcements of a core material formed by binding the reinforcements, and a support angle 18 is mounted on the top ends in such a manner as to be attachable and detachable. Attachable and detachable angles 11 having L-shaped sections are then mounted on both ends of the support angle 18 with the wide sides down in such a manner as to be attachable and detachable. A lathing plate A is mounted on a hole formed on the wide side of the attachable and detachable angle 11 in such a manner that the upper side is attachable and detachable. A separator 13 both ends of which are protruded outward from the lathing plate A is mounted horizontally to the core material. Pipes 5... are mounted on the top end of the separator 14 in such a manner as to be attachable and detachable to support the lathing plate from the outside. According to this constitution, even in an underground beam partially exposed to the ground or shielded, the surface near the upper end can be smoothed, and the lathing plate A can be used in the underground buried part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork for bundling reinforcing bars into a core material and pouring concrete between lath plates installed on both sides of the core material to construct a foundation or wall surface of a building. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, as a mold of this type, a plywood laminated with thin wood plates or a plywood mold using a metal plate as a dam plate, upper and lower edges as shown in FIG. A rib 1 having a substantially U shape is formed at a constant pitch, and the rib 1
It is known that a lath plate A having a wire mesh 2 in the space is used as a dam plate.

Since the lath plate A, which is the weir plate, has a wire mesh 2 shape, when the concrete is poured, excess water in the concrete is discharged in a short time, so that the hardening is fast and the solid frame is solid. Is excellent in finishing. In addition, after the concrete is placed, the lath plate A, which is a dam plate, is left without being disassembled, so that it can greatly contribute to the shortening of the construction period of the formwork, particularly in shortening the time for demolding.

Further, since it is possible to reduce the weight of materials such as lath plate used for the weir plate, it is evaluated that it can cope with the aging of workers and the increase of transportation cost. In recent years, it has become popular as a formwork. The installation state of this lath form for an underground beam will be described below with reference to FIG.

The main bar 3 and the stirrup bar 4 are bonded to each other on the basic concrete with a wire or the like at an intersection point to form a core material B of a base of a concrete structure, and the lath form frame is provided close to both sides thereof. A is installed. An insertion hole 10 of a support angle 9 is inserted into the support bolt 7 bound to the core material B, and is fixed by a fastening means such as a nut.

On the other hand, the lath plate A installed on both sides of the core material B has upper end bars 8 supported by both ends of a support angle 9 attached to the upper ends thereof and embedded in basic concrete. The lath plate A is supported by connecting the upper end bar 8 to the pipe 5 with a wire 6 with the rib 1 in the lateral direction on the inner surface side of the pipe 5 whose lower end is fitted to the anchor bolt. Concrete is poured between the lath plates A supported in this manner to form a concrete base.

[0007]

However, since the lath plate A used for the weir plate has a wire mesh shape, the above-mentioned advantage of the outflow of water is the same as that of the concrete plate near the formwork. The cement component is also discharged, and the vicinity of the mesh is dented by the cement paste flowing out or the cement paste is deposited and deposited, so that the concrete surface has a rough finish with irregularities.

Further, since the lath plate is left, the ribs and the mesh itself also cause unevenness. for that reason,
In the case of an underground beam in which the upper part is exposed to the ground and the lower part is buried in the ground, at least the upper part of the formwork that corresponds to the part exposed to the ground is good in appearance, as in the exposed construction method using plywood formwork. Surface roughness is required.

On the other hand, the wall that continues above the underground beam that is completely hidden is exposed to the ground, and the surfaces of the wall and the underground beam are not separated by slabs or the like, and at least one of the walls is not separated. The wall surface may form a continuous surface with the underground beam. In this case, in the formwork of the underground beam to be hidden in the ground,
Even if it seems that there is no problem in using the lath form, the same problem as described above occurs as follows.

Usually, the order of such concrete work for the underground beam and the wall body is often performed by separating the underground beam and the wall body. At this time, a series of steps of formwork assembly, concrete pouring and curing, and formwork dismantling are repeated for each of the underground beam and the wall body. When doing, when assembling the form of the wall,
Do this by stacking up to a little below the top of the completed underground beam to ensure the specified width of the frame and to avoid the difference in level on the same plane near the concrete joint of the underground beam and the wall. I have to.

However, if the lath plate A is used for the underground beam,
On the concrete surface after removing the formwork, the surface roughness becomes coarse as described above and unevenness occurs, and as shown in FIG. 7, the panel E1 of the plywood formwork E of the wall body D is attached to the underground beam C. In the case of standing upright in contact with the outer surface of the plywood frame E, the shikibata E2 of the plywood form E cannot be installed in a horizontal plane due to the roughness of the ground beam E3, and the panel E1 is inclined. There is a risk that

As a result, the plywood frame E placed on the shikibata E2 also tilts, and as shown in FIG. 7, the body width W2 is slightly larger than the prescribed body width W1. That is, it becomes difficult to vertically erect the formwork to be overlaid on the surface of the underground beam C.

As described above, also in the underground beam C to be hidden, when the exposed surface of the wall body D continuing on the underground beam C is continuous from the underground beam C, the underground beam C Similar to the case where the upper part is exposed to the ground, it is necessary to finish at least near the top end of the underground beam C to have a good surface roughness. Therefore, in this case as well, as in the case of an underground girder partially exposed to the ground, even if a lath form is used, no merit can be obtained. Therefore, a plywood form is used.

As described above, in the case of using a lath form frame, many parts have to be plywood form frames because of a very small part that requires good surface roughness. There was a problem of reducing the advantage of.

The present invention is intended to solve the above-mentioned problems caused by the conventional lath form, and even in the case of an underground beam which is partially exposed or concealed above the ground, the wall body is continuously formed thereon. It is an object of the present invention to provide a formwork device capable of forming a smooth surface in the vicinity of the upper end of an underground girder when it is formed.

[0016]

SUMMARY OF THE INVENTION The present invention relates to means of a formwork apparatus for solving the above-mentioned problems in a conventional formwork apparatus, which means is perpendicular to the rebar of a core material in which rebars are bound. Direction fastener, a support angle detachably attached to the upper end of the fastener, a cross-section L-shaped, and detachably attached to both ends of the support angle with the wide side facing downward. Attached / detached angle, a lath plate having an upper side detachably attached to a hole formed in the wide side of the attached / detached angle, and a lath plate horizontally attached to the core member so that both ends project outward from the lath plate. It is composed of a separator and a pipe detachably attached to the tip of the separator and supporting the lath plate from the outside.

[0017]

In the formwork apparatus of the present invention, since one side of the attachment / detachment angle having an L-shaped cross section is detachably attached to the upper end of the lath plate installed on both sides of the core material in which the reinforcing bars are bound, By removing the attaching / detaching angle after solidification of the concrete poured between the molds, the surface of the concrete in contact with the attaching / detaching angle is formed into a smooth surface.

Since the detachable angle is supported by the supporting angle which is detachably fixed to the fastener connected to the core member, the supporting angle does not tilt or the dimensions do not shift. By maintaining the correct position, the panel can be prevented from falling due to the inclination of the shibakata at the time of installing the mold on the upper wall surface, and the accurate body width can be obtained.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Also in this embodiment, the main reinforcing bar 3 and the stirrup reinforcing bar 4 are bonded on the basic concrete with a wire or the like at the intersection to form the core material B of the base of the concrete structure. Is connected to a support bolt 7 which is a fastener, and a nut 17 having an upper side engraved with a male screw 17a is attached to a male screw 7a engraved on the upper end thereof.
Are screwed together.

The engraved seat surface of the male screw 17a of the nut 17 is adjusted to have the same height as the upper surface of the detachable angle 11 having an L-shaped cross section, which will be described later, by adjusting the length of engagement of the male screw 7a with the nut 17. The support angle 18 that supports the detachable angle 11 at both ends can be inserted into the male screw 17a through the insertion hole 18a formed therein and screwed with the nut 19 to fix the support angle 18. It can be fastened.

On the other hand, the lath plate A supported by the pipe 5 standing upright by fitting the lower end of the anchor bolt embedded in the basic concrete, has upper and lower ends and between them in a substantially U shape at a constant pitch. The curved ribs 1 are formed, and the ribs 1 are formed in the shape of a wire mesh 2, and the lath plate A extends along the inner side of the pipe 5 on one side or both sides of the core material B (both sides in the drawing). The case is shown).

An insertion hole is formed at one end of the separator 13 for setting the dimension between the molds, and a male screw is engraved at the other end. The male screw has an insertion hole at the tip. The nut 14 having the same configuration as the nut 17 provided with the shaft portion 14a provided is screwed. By the screwing depth of the nut 14 with respect to the male screw of the separator 13, the gap between the lath plates A on both left and right sides is made to match a predetermined base width.
One end of the separator 13 and the shaft portion 14a of the nut 14 are inserted into the lath plates A on both sides.

The horizontal pipe 15 is brought into contact with the separator 13 and the shaft portion 14a of the nut 14 inserted through the lath plate A so as to be sandwiched from both the upper and lower sides on the outside of the pipe 5, and the seat rod 16 is interposed therebetween. The wedge 17 is pushed into the end of the separator 13 and the hole of the shaft portion 14a, and the pipe 5 is attached to the lath plate A.
Press on.

The attachment / detachment angle 11 is detachably attached to the right and left ends of the support angle 18 by appropriate means such as bolting. The attachment / detachment angle 11 has a short side and a long side. It has a letter shape.

The attachment / detachment angle 11 has a long other piece facing downward, and countless small holes 11 are formed along the lower side of the downward side.
a is bored, and is attached to the upper end of the lath plate A by a wire 12 inserted into the small hole 11a as shown in FIG. 3, and the detachable angle 11 is removed from the lath plate A by unwinding the wire 12. Is able to.

As described above, when the wedge 17 is laterally tightened, the pipe 5 is pressed inward through the horizontal pipe 15. By this pressing, the pipe 5 presses the attachment / detachment angle 11, and between the attachment / detachment angles 11. Is to maintain a predetermined base size.

After installing the molds on the left and right sides in this way,
Concrete is poured between the molds to the lower side of the horizontal side of the attachment / detachment angle 11, the upper surface is troweled, and the nut 19 is unscrewed after the solidification of the concrete is waited for.
The support angle 18 is pulled out by pulling out the support angle 18 from the male screw 17a.
Is unscrewed from the support bolt 7, allowing reuse of the nut 17 and the support angle 18.

Next, by detaching the wire 12 connecting the detachable angle 11 and the lath plate A, the detachable angle 11 and the lath plate A can be separated, so that the detachable angle 11 can be pulled out upward. Further, the wedge 17 is pulled out to remove the pipe 5 and the lateral pipe 16, and the lath plate A is cut from the exposed portion of the separator 13. Then, by screwing off the nut 14, the nut 14 can be reused.

At this time, since the lath plate A is left in the concrete, the surface of the concrete on which the lath plate A is left has rough surfaces as rough surfaces due to the above-mentioned reasons.
The surface of the concrete that was in contact with the detachable angle 11 is a smooth surface, and it is not unclean when exposed to the ground.

When a wall is installed on the upper part of the underground beam C, the shikibata E2 of the form E is removed as shown in FIG. Since it can be mounted in a horizontal state, the panel E1 for the wall can be erected vertically, the formwork for the wall surface can be installed without any trouble, and the width of the body can be finished to a predetermined width.

[0031]

As described above, according to the present invention, even in the case of an underground beam whose part is exposed or concealed above the ground, the vicinity of the upper end can be made a smooth surface, so that part is exposed above the ground. Even in the case of the underground girder and the underground girder in which the wall body is continuously formed on the upper part, the lath plate can be used in the part buried in the ground. Therefore, when pouring concrete, which is an advantage of the lath plate, excess water in the concrete is discharged in a short time, curing is quick, and the point that a solid body is finished is utilized as it is.

When the wall body is continuously formed on the above-mentioned underground beam, the inclination of the shikibata of the wall body form installed at this portion does not occur and the underground beam is formed. It is possible to install the wall formwork at an accurate position without the need for the formwork panel provided on the upper part of the formwork to collapse or the body width to be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the above.

FIG. 3 is a perspective view of a main part in FIG.

FIG. 4 is a sectional view of a support bolt portion.

FIG. 5 is a side view of a case where a formwork for a wall body is installed on an upper portion of the underground beam according to FIG.

FIG. 6 is a perspective view showing a main part of a conventional lath frame.

FIG. 7 is a side view showing a case where a formwork for a wall body is installed on an upper part of an underground beam according to the above.

[Explanation of symbols]

 A Lath plate B Core material C Underground beam D Wall body 1 Rib 2 Mesh 7 Support bolt (fastener) 11 Attachment angle 13 Separator 18 Support angle 18a Insertion hole

Claims (1)

[Claims] 1. A fastening member vertically attached to the rebar of a core material in which rebars are bound together, a support angle detachably attached to an upper end of the fastening member, and formed into an L-shaped cross section.
A detachable angle detachably attached to both ends of the support angle with the wide side facing downward; a lath plate having an upper side detachably attached to a hole formed in the wide side of the attach / detach angle; A separator that is horizontally attached to the core member and has both ends projecting outward from the lath plate; and a pipe that is detachably attached to the tip of the separator and supports the lath plate from the outside. Formwork device to do.