JP3451055B2 - Horizontal frame for forming a legal frame - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a lateral frame body for forming a legal frame.

[0002]

2. Description of the Related Art Reinforcing bars are arranged in a grid on the slope, and the size is such that mortar or concrete (hereinafter referred to as mortar) can be blown without hindrance so as to cover the reinforcing bars. Forming a lattice frame by integrally forming a ceiling portion having the above and both side legs extending downward from the ceiling portion with the same wire to form a lattice frame, and mortar from above the lattice frame In a simple method for constructing a legal frame by spraying (see, for example, Japanese Patent Publication No. 4-41724, Japanese Patent Publication No. 5-7492, Japanese Patent Publication No. 5-20528), the formwork is viewed from the front. Since it is formed in a shape, it is inconvenient because the molds cannot be folded and transported, and it is necessary to transport them by stacking. Further, the ceiling portion and the both side leg portions must be integrally formed of the same wire material, for example, by welding, and this tends to become a neck, and the member price tends to increase.

Further, even when the leg frame is formed by using the pedestal for holding the reinforcing bar in an appropriate position so as to ensure the accurate spray cross-sectional shape, it is necessary to carry the pedestals in a pile and it is inconvenient. In addition, since the pedestal is formed by welding, the cost is high.

Further, in the conventional frame for forming a frame, the net is arranged so as to cover the reinforcing bars, so that when the mortar or concrete is sprayed, the net becomes an obstacle to the mortar and concrete. This made filling with no gaps difficult. Then, the gap generated in the sprayed mortar or concrete has been a cause of reducing the strength of the frame body or the adhesion of the slope.

The present invention has been made in view of the above matters, and an object thereof is to provide a horizontal frame body for forming a legal frame which can be folded freely and can be easily divided. Has an aim.

[0006]

In order to achieve the above object, the present invention covers a reinforcing bar laterally arranged on a slope.
Is disposed on the slope face as, and, in the lateral frame that form a legal frame mortar or concrete is sprayed, and a plurality of horizontal lines material across the reinforcing bar includes a pair of legs, said legs only the legs of the valley side of the reinforcing steel of the body, a plurality of engagement portions
A surface part that covers the valley side of the reinforcing bar by locking each
And a mesh form forming a .

When the horizontal wire is formed in a concave polygonal shape in front view having one convex portion and two concave portions and the reinforcing bars are suspended and held in the two concave portions, the connection between the reinforcing bar and the frame is accurately performed. It is possible to obtain a more stable horizontal frame for forming a legal frame.

Further, according to the present invention , the mountain side of the legs is
Connecting wire with multiple locking parts for locking the legs
Preferably .

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show the structure of a horizontal frame A for forming a legal frame. The horizontal frame A for forming a legal frame is provided on a wire mesh mold 1 on the valley side with a ring body ( Example of locking part) 3 to 3-4
Individually attached to this ring body 3 and legs 2 of a plurality of horizontal wire rods 2.
The 1st Embodiment of this invention comprised which the leg 2c of the trough side is inserted among b and 2c, and also the space | interval holding member 9 hold | maintains the space | interval m of the front-assembly rebar 6 and the wire mesh formwork 1 is shown. . In this embodiment, as the mesh form, the wire mesh form 1 made of a wire having a lot of transparency is adopted.

In FIGS. 1 to 4, reference numeral 4 denotes a hoop bar (reinforcing bar cage), which is provided with a net body 5 stretched on a slope N at the time of construction, and then four rebar bars 6 are provided on the net body 5. The hoop reinforcements 4 are located at the four corners of the hoop reinforcement, and are arranged in a floating manner in a grid pattern. The overlapping portions (that is, the end portions 6a of the reinforcing bars 6) are bound together with a wire or the like, and fixed with anchor pins 7 or the like. After that, the horizontal frame body A and the vertical frame body A ′ are laid so as to cover the reinforcing bars 6.
The reinforcing bars 6 are bound to the four corners by, for example, annealed iron wires.

The horizontal frame A has a square shape when viewed from the front. The length L in the length direction and the height H is a wire mesh formwork 1 that forms a surface portion on the valley side of the reinforcing bars 6 laid in a lattice, and a ceiling beam 2a that forms a linear ceiling portion. A pair of legs (leg beams) 2b vertically downward from both sides in the length direction of
A horizontal wire 2 having an inverted U-shape in a front view, in which 2c is extended, and a plurality of ring bodies 3 provided on a surface which becomes an inner surface V of the wire mesh form 1 when laid.
And a hook for connecting between the wire mesh form 1 and the hoop muscle 4 arranged adjacent to the wire mesh mold 1 and between the mountain side leg 2b of the legs 2b and 2c and the hoop muscle 4. Spacing members 9 made of linear metal fittings having hooks 8
And has a hook 10 at both ends, which is linear, and has the legs 2b,
At the lower part of 2c, it is composed of an opening prevention member 11 which is provided between the two 2b and 2c.

The bending angle β of the legs 2b and 2c with respect to the ceiling beam 2a of the horizontal wire 2 is 90 °. Further, the mesh of the wire netting formwork 1 is set to be coarse enough that mortar or concrete, which is a spray material, is not caught to form a nest. The mesh is, for example, 1.0 to 5.0 cm
Is. The horizontal frame body A may be formed in a rectangular shape when viewed from the front.

Further, the ring body 3 has such a size that the leg body 2c can be inserted, and by inserting the leg body 2c,
The horizontal wire 2 is rotatably locked to the wire netting frame 1.
In this embodiment, three ring bodies 3 are provided at upper, middle and lower positions on the inner surface V of the wire mesh form 1. When the length L of the wire mesh form 1 is short (see FIG. 4), three sets of the ring bodies 3 are provided with an appropriate interval S in the length direction, or when the length is long (see FIG. 3). Five sets of ring bodies 3 are provided at appropriate intervals P in the length direction. Therefore, in a state in which the horizontal wire 2 is engaged with the wire mesh form 1, that is, in a state in which the leg 2c of the horizontal wire 2 is inserted in the ring body 3,
Since the horizontal wire 2 is rotatable with respect to the ring body 3,
The lateral frame A can be freely folded.

Of the legs 2b and 2c, the reinforcing bar 6
On the leg 2b located on the mountain side, a connecting wire 2e provided with a plurality of locking portions 2d that locks the legs 2b rotatably according to the interval P between the legs 2b is arranged. By providing the connecting wire 2e, the legs 2b can be fixed so that the gap between the legs 2b becomes the gap P as appropriate, so that the stability of the lateral frame A can be improved. Further, the stability can be further improved by providing a plurality of the connecting wire rods 2e.

The hoop reinforcement 4 having the front-end rebar 6 is arranged in the horizontal frame A, and the height of the horizontal frame A, that is, the height H of the wire netting formwork 1 is 20-. At 60 cm, the length L of the horizontal frame A, that is, the length L of the wire netting formwork 1 is 1 to 4 m, and the width W is 20 to 60 cm. The leg 2 of the horizontal wire 2
The heights of b and 2c are the same as the height H of the wire netting formwork 1.

However, the length L of the horizontal frame A is not particularly limited. If it is short, it is easy to handle, but it takes time and effort to connect it when forming the lattice frame 12. If the length is long, the connection becomes less troublesome and the handling becomes inconvenient. Therefore, a suitable length may be used depending on the case. Further, the intersection G between the horizontal frame A and the vertical frame A ′ is generally formed by connecting them in a butting state.

That is, as shown in FIG. 1, the lattice frame 12
Is the horizontal frame portion 13 arranged in the direction of the contour line on the slope N.
And a vertical frame portion 14 arranged orthogonally to the horizontal frame portion 13, and after first arranging a vertical frame body A ′ for forming the vertical frame portion 14 in parallel on the mesh body 5, By arranging the horizontal frame body A for forming the horizontal frame portion 13 between the vertical frame portions 14, the horizontal frame body A and the vertical frame body A ′ are connected to each other at the intersection G. .

Thus, the horizontal wire 2 and the wire mesh form 1 can be separately carried to the site. In this case, the horizontal wire 2 may be connected to the wire netting formwork 1 at the site to assemble the horizontal frame body A.

Further, since the horizontal wire 2 is rotatable even when the horizontal wire 2 is connected to the wire netting frame 1, the horizontal frame A can be folded and transported to the site. That is, it is easy to fold and carry. In this case, at the site, as shown in FIG. 3A, the horizontal wire 2 is rotated from the folded state.

At this time, the leg 2b of this embodiment is rotatably connected to the connecting wire 2e by the engaging portion 2d.
All the legs 2b that are rotatably connected by the connecting wire 2e can be folded or unfolded at the same time. That is, the horizontal frame A can be made easier to handle, and the labor required for construction can be reduced. However, the locking portion 2d between the leg 2b and the connecting wire 2e may be formed so as to be fixed by binding with the binding wire.

Then, as shown in FIG. 3B, the slope N
After the reticulated body 5 is stretched on the reticulated body 5, four rebars 6 are placed on the reticulated body 5 so that they are located at the four corners of the hoop reed 4, and the rebars are arranged in a state of being floated in a lattice pattern. A horizontal frame body A is laid so as to cover 6. In this case, the space holding member 9 and the opening prevention member 11 are installed at the places considered necessary after the horizontal frame A is laid.

That is, the plurality of spacing members 9 arranged vertically connect the leg 2b on the mountain side and the vertical portion 4a of the hoop streak 4 arranged on the mountain side, and a plurality of members arranged vertically. With the spacing member 9 of the above, the vertical portion 4b of the leg body 2c or the wire mesh form 1 on the valley side and the hoop muscle 4 arranged on the valley side.
And the opening prevention member 11 is installed between the two legs 2b and 2c at the lower part of the legs 2b and 2c. As a result, it is possible to prevent the wire mesh formwork 1 from opening and also to maintain the distance m between the wire mesh formwork 1 and the reinforcing bar 6.

That is, the method frame 15 is formed by spraying mortar or concrete onto the horizontal frame body A and the vertical frame body A'assembled in this way. Even if the corresponding beam has a very large cross-sectional area, the leg members 2b and 2c of the mesh form 2 are opened by the weight of the mortar or concrete and the pressure of spraying due to the spacing member 9 and the opening prevention member 11. Alternatively, the beam 2a can be sewn in accordance with the standard at a predetermined place where the mortar or concrete frame 15 is formed by a single spraying without curving downward.

In particular, in the present invention, the horizontal frame member A is provided with a pair of legs 2b and 2c, and the plurality of horizontal wire members 2 straddling the reinforcing bar 6 are provided.
Of the legs 2b and 2c, the leg 2 on the valley side of the reinforcing bar 6
Only c is provided with a plurality of loop portions 3 for respectively locking the legs 2c, and a metal mesh forming a surface portion for covering the valley side of the reinforcing bar 6 by locking the legs 2c on the valley side to each of the loop portions 3 Since it has the formwork 1, a large opening for forming mortar or concrete is formed on the mountain side of the horizontal frame body A. Therefore, when spraying mortar or concrete onto the horizontal frame A of the present invention, there is nothing that interferes with the spraying, and by doing so, reliable spraying is performed to form a strong legal frame. be able to.

In the above-mentioned example, the construction of the vertical frame A'arranged in the vertical direction with respect to the slope of the slope is such that two wire mesh forms facing each other are connected by the inverted U-shaped horizontal wire. As a result, the wire mesh molds are arranged on both sides of the reinforcing bar 6. However, the structure of the vertical frame A ′ may also be the same as that of the horizontal frame A of the present invention so that reliable mortar or concrete can be sprayed into the vertical frame A ′ more easily. Needless to say.

Further, as shown in FIG. 4 (A), the horizontal frame body A of the present invention is different from the conventional form frame in which the ceiling portion and both side leg portions are integrally formed by welding with the same wire. The horizontal frame member A can be obtained by forming the horizontal wire member 2 and the wire netting frame 1 which form the horizontal frame member A separately, and only inserting the horizontal wire member 2 into the ring member 3. Therefore, the construction cost can be reduced. Further, the horizontal wire 2 is connected to the ring body 3
, The horizontal wire 2 is rotatable, so that it can be folded at the time of transportation, and there is no need to feel inconvenience in transportation as in the conventional case, and the horizontal wire 2 and the wire mesh form 1 can be folded.
Since they can be separated, they are easy to transport.

In addition, since the horizontal wire 2 can be easily removed on site, workability when cutting or adding the wire mesh form 1 can be improved according to the site.

Further, in this example, as shown in FIG. 4 (B), the ring body 3 is formed inside the wire mesh form 1 (the mountain side of the slope), whereby the horizontal frame A is folded. It can be done easily. However, the present invention is directed to the wire mesh formwork 1
The structure of the locking portion 3 of the leg body 2c with respect to is not limited to the ring body 3 formed inside the wire netting frame 1. That is, the ring body 3 may be formed on the outside of the wire netting frame 1.

Further, as the locking portion 3, it is also possible to bend a part of each horizontal wire material forming the wire mesh form 1 to form a recess for inserting the leg 2c. Furthermore, leg 2
The c and the wire netting frame 1 may be locked by fixing with a C ring gun or by binding with a binding wire. In any case, the lateral frame A for forming the legal frame of the present invention
Since the horizontal frame body A can be assembled without welding, it is possible to reduce the labor required for manufacturing the horizontal frame body A, and the cost can be reduced accordingly. Further, various methods of forming the locking portion 3 can be applied to various embodiments described below.

FIG. 5 shows a second embodiment of the present invention in which a front view isosceles trapezoidal horizontal wire 2 is used to form a front view trapezoidal shape. 5, the same reference numerals as those shown in FIGS. 1 to 4 are the same or equivalent.

In the case of this example, the legs 2b for the top beam 2a,
The stability of the horizontal wire A is improved by setting the bending angle β of 2c to be obtuse than 90 °. In addition, in the case of this example, since only one connecting wire 2d is attached to the leg 2b, there is no limitation on the angle of the bending angle β. When the connecting wire 2d is provided, it is desirable to set the angle such that the horizontal wire 2 can be rotated and the horizontal frame A can be freely folded, for example, 90 ° <β <110 °.

Instead of the anchor pin 7 of each of the above-mentioned embodiments, the hoop reinforcement (rebar cage) 4 may be floated and fixed by the opening preventing member 11.

FIG. 6 shows the first embodiment of the present invention in which the rebar 6 is applied to the reticulated body 5 and to the top beam 2a of the inverted U-shaped horizontal wire 2 which is flat in front view. 3 shows a third embodiment. 6, the same reference numerals as those shown in FIGS. 1 to 5 are the same or equivalent.

In this double rebar type, two rebars 6 are placed on the reticulated body 5 at intervals, and the rebars 6 are tied to the reticulated body 5 with a wire, and then the horizontal frame A
And the two rebars 6 are also placed on the top beam 2a of the horizontal wire 2 with a space between them and the wires 2f
The horizontal wire 2 is tightly bound to the reinforcing bar 6 by binding with. That is, the horizontal wire 2 is configured to have a binding portion that is tightly bound to the reinforcing bar 6, whereby the horizontal wire A can be installed more stably. In this case, the height H of the wire mesh formwork 1 is around 10 cm, and the leg 2 of the horizontal wire 2 is
The heights of b and 2c are lower than the height H of the wire netting frame 1.

In FIGS. 7 and 8, the wire mesh form 1 is used to form a surface portion for covering the trough side of the rebar 6, and the lower portion of the wire mesh form 1 and the leg 21a of the horizontal wire 21 are prevented from opening. 2 to 3 are attached to the upper part of the wire mesh form 1 while being rotatably connected with each other, and the horizontal wire 21 is attached to the ring body 3.
By inserting the leg side 21b on the valley side of the
b and the wire mesh form 1 are engaged, and the reinforcing bar 6 is placed on the horizontal wire 21.
4 shows a fourth embodiment of the present invention configured to carry a. 7 and 8, the same reference numerals as those shown in FIGS. 1 to 6 are the same or equivalent.

In this case, the horizontal wire 21 is formed into a concave polygonal shape in a front view having one convex portion 22 and two concave portions 23, and the reinforcing bars 6 are bundled in the two concave portions 23 with wire or the like and held in a floating manner. There is.

Further, the opening preventing member 20 is formed of a wire material having two upward convex portions 24, and the two convex portions 2 are formed.
In Fig. 4, reinforcing bars are bound by wire or the like and are held in a floating manner. The opening prevention member 20 is connected to one end of the ring portions 26 provided at both ends thereof to the vertical wire of the wire netting frame 1 and the other end to the leg 21a. Therefore, since the opening prevention member 20 is rotatable, the horizontal frame body A of this example can be folded during transportation. In other words, it can be folded without feeling the inconvenience of transportation as in the past.

Instead of the rotatable anti-opening member 20, the anti-opening member 20 having hooks on both ends is provided.
Alternatively, the opening preventing member 20 having a hook like a hook at one end and a ring portion 26 at the other end may be used.

In FIG. 9, the wire mesh form 1 is used to form the valley-side surface of the reinforcing bar, and the lower part of the wire mesh form 1 and the horizontal wire 2 are formed.
While one leg 21a is rotatably connected by the opening prevention member 20, two to three ring bodies 3 are attached to the upper part of the wire mesh form 1, and the ring body 3 is provided with a valley side of the horizontal wire 21. The 5th Embodiment of this invention comprised which the leg 21b and the wire mesh formwork 1 are engaged by inserting the leg 21b, and the rebar 6 is mounted on the horizontal wire 21 is shown. 9, the same reference numerals as those shown in FIGS. 1 to 8 are the same or equivalent.

In this case, the horizontal wire 21 is formed into a concave polygonal shape in a front view having two convex portions 22 and one concave portion 23a,
Reinforcing bars 6 are bound and held in a floating manner by wire or the like in the one recess 23a. Further, when forming the diagonal grid square frame using the horizontal frame bodies A of the various embodiments, the wire mesh form 1 may be installed so as to be on the valley side.

[0042]

As described above, according to the present invention, there is an effect that it is possible to provide a horizontal frame body for forming a legal frame which can be folded freely and can be easily divided. Further, in spraying from above, there are few obstacles for spraying mortar or concrete, and a smooth and reliable spray frame can be constructed. Further, according to the present invention, when enlarging the existing legal frame, by installing the form over the existing legal frame without removing the existing legal frame, "additional hitting" of mortar or concrete can be achieved. It is possible.

[Brief description of drawings]

FIG. 1 is an overall configuration explanatory diagram showing a construction state in a first embodiment of the present invention.

FIG. 2 is a configuration explanatory view showing the embodiment.

FIG. 3A is a diagram showing a state of unfolding in the embodiment. FIG. 6B is a diagram showing an assembling procedure in the above embodiment.

FIG. 4 is an exploded perspective view of a main part of the above embodiment.

FIG. 5 is a structural explanatory view showing a second embodiment of the present invention.

FIG. 6 is a structural explanatory view showing a third embodiment of the present invention.

FIG. 7 is a structural explanatory view showing a fourth embodiment of the present invention.

FIG. 8A is a diagram showing an assembling procedure in the fourth embodiment. FIG. 9B is an explanatory diagram of a main part configuration in the fourth embodiment.

FIG. 9 is a structural explanatory view showing a fifth embodiment of the present invention.

[Explanation of symbols]

1 ... Wire mesh form (mesh form), 2 ... Horizontal wire, 2b, 2c ...
Legs, 3 ... Ring body (locking portion), 6 ... Reinforcing bar, 8 ... Hook, 9 ... Interval holding member, 11 ... Opening prevention member, 15 ... Normal frame, A ... Horizontal frame body, N ... Slope.

Claims (2)

(57) [Claims] 1. Covering a reinforcing bar arranged horizontally on the slope.
It is disposed on urchin slopes, and in the transverse frame member that form a legal frame mortar or concrete is sprayed, and a plurality of horizontal lines material across the reinforcing bar includes a pair of legs, the leg only the legs of the valley side of the reinforcing steel of, Noso plurality of engagement portions
By locking each of them, the surface part that covers the valley side of the reinforcing bar
Horizontal frame for legal frame formation and having a formation to mesh mold. 2. The legs on the mountain side of the legs are engaged with each other.
A connecting wire rod provided with a plurality of locking portions for stopping.
A horizontal frame body for forming a legal frame described in 1 .