JP2001348880A - Lateral frame body for forming slope frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lateral frame body for forming a slope frame, foldable, easily dividable and low in cost. SOLUTION: This lateral frame body A is disposed on a face of slope N so as to cover reinforcements 6 laterally arranged on the face of slope N, and sprayed with mortar or concrete to form the slope frame. The lateral frame body A has a plurality of lateral wire materials 2 each provided with a pair of leg bodies 2b, 2c to straddle the reinforcements 6, and a mesh form 1 provided with a plurality of locking parts 3 for respectively locking the leg bodies 2c on the valley side from the reinforcements 6 out of the leg bodies 2b, 2c and forming a face part for covering the valley side of the reinforcements 6 by locking the leg bodies 2c to the respective locking parts 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a horizontal frame for forming a legal frame.

[0002]

2. Description of the Related Art Reinforcing bars are arranged in a grid pattern on a slope, and the mortar or concrete (hereinafter, referred to as mortar) is large enough to blow over the reinforcing bars without hindrance. A grid frame is formed by integrally forming a ceiling having a ceiling portion and both side legs extending downward from the ceiling portion with the same wire to form a grid frame, and mortar is placed on the grid frame. In the simple method of forming a legal frame by spraying (see, for example, Japanese Patent Publication No. 4-41724, Japanese Patent Publication No. 5-7492, and Japanese Patent Publication No. 5-20528), Since the mold is formed in a shape, the mold cannot be folded and transported, so that it is necessary to transport it in a stack, which is inconvenient. In addition, the ceiling and both legs must be integrally formed by the same wire, for example, by welding, and this has been a neck, which has been likely to increase the cost of members.

Further, even when a legal frame is formed using a pedestal for holding a reinforcing bar at an appropriate position so as to ensure an accurate sprayed cross-sectional shape, it is necessary to stack the pedestal and transport it, which is inconvenient. Moreover, since the pedestal is formed by welding, the cost is high.

Further, in a conventional frame for forming a normal frame, the net is disposed so as to cover the reinforcing steel, so that when the mortar or concrete is sprayed, the net becomes an obstacle to the mortar or concrete. This makes it difficult to fill without gaps. And, the gaps generated in the sprayed mortar or concrete cause a decrease in the strength of the frame or a decrease in the adhesion to the slope.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a low-cost horizontal frame for forming a legal frame which can be freely folded and which can be easily divided. The purpose is.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a method for installing a mortar or concrete by spraying mortar or concrete on a slope to form a frame. The frame is characterized by having a plurality of horizontal wires having a pair of legs and a mesh frame having a plurality of locking portions for locking one of the legs. .

In the case where the horizontal wire is formed in a concave polygonal shape as viewed from the front having one convex portion and two concave portions, and the reinforcing bar is floated and held in the two concave portions, the connection between the reinforcing bar and the frame is accurately performed. And a more stable horizontal frame for forming a legal frame can be obtained.

In another aspect, the present invention is provided on a slope so as to cover a reinforcing bar laterally arranged on the slope,
And, in a horizontal frame body to which a mortar or concrete is sprayed to form a normal frame, a plurality of horizontal wire members including a pair of legs and straddling the reinforcing bar, and a leg of the leg closer to a valley side than a reinforcing bar. A mesh form is provided, which comprises a plurality of locking portions for locking each of the locking portions, and a leg portion is locked to each of the locking portions to form a surface portion covering the valley side of the reinforcing bar.

[0009]

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 with a ring body ( Example of locking part) 3 to 3 to 4
A plurality of horizontal wires 2 are attached to this ring body 3
A first embodiment of the present invention is shown in which the leg 2c on the valley side of the b and 2c is inserted, and the distance m between the pre-assembled reinforcing bar 6 and the wire mesh form 1 is held by the distance holding member 9. . In this embodiment, a wire mesh form 1 composed of a wire material having a large amount of transparency is employed as a mesh form.

1 to 4, reference numeral 4 denotes a hoop bar (reinforcing bar), which is provided with a reinforcing member 6 on a slope N at the time of construction, and four reinforcing bars 6 are provided on the supporting member 5. Arrange the bars in a state of being suspended in a lattice so as to be located at the four corners of the hoop bar 4, and tie the overlapping portions (that is, the end portions 6a of the reinforcing bar 6) together with wires or the like and fix them with the anchor pins 7 or the like. Then, the horizontal frame A and the vertical frame A 'are laid so as to cover the reinforcing bar 6.
The reinforcing bars 6 are bound to the four corners by, for example, annealed iron wires.

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

The bending angle β of the legs 2b, 2c with respect to the top beam 2a of the horizontal wire 2 is 90 °. The mesh of the wire netting form 1 is set so coarse that mortar or concrete as a spray material is not caught and a nest is formed. The aim is, for example, 1.0 to 5.0 cm
It is. The horizontal frame 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 2c can be inserted, and by inserting the leg 2c,
The horizontal wire 2 is rotatably locked to the wire mesh form 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 netting form 1 is short (see FIG. 4), three sets of the ring bodies 3 are provided at appropriate intervals 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 where the horizontal wire 2 is engaged with the wire netting frame 1, that is, in a state where the leg 2 c of the horizontal wire 2 is inserted into the ring body 3,
Since the horizontal wire 2 is rotatable with respect to the ring body 3,
The horizontal frame A can be freely folded.

In addition, of the legs 2b and 2c,
A connecting wire 2e provided with a plurality of locking portions 2d for rotatably locking the distance between the legs 2b to the appropriate distance P is disposed on the legs 2b located on the more mountain side. By providing the connecting wire 2e, the legs 2b can be fixed so that the intervals between the legs 2b are appropriately set to the intervals P, so that the stability of the horizontal frame A can be improved. Further, by providing a plurality of the connecting wires 2e, the stability can be further improved.

The hoop bars 4 having the pre-assembled reinforcing bars 6 are arranged in the horizontal frame A. The height of the horizontal frame A, that is, the height H of the wire mesh form 1 is 20 to At 60 cm, the length L of the horizontal frame A, that is, the length L of the wire mesh frame 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 mesh 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 to connect when forming the lattice frame 12. If the length is long, the handling is inconvenient at the expense of less labor for connection. Therefore, an appropriate length may be used as needed. In addition, the intersection G of the horizontal frame A and the vertical frame A 'is generally formed by connecting in an abutting state.

That is, as shown in FIG.
To 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. On the mesh body 5, first, a vertical frame member A ′ for forming the vertical frame portion 14 is arranged in parallel. By arranging the horizontal frame A for forming the horizontal frame 13 between the vertical frame portions 14, the horizontal frame A and the vertical frame A 'are connected to each other at the intersection G in an abutting state. .

Thus, the horizontal wire 2 and the wire mesh form 1 can be transported separately to the site. In this case, the horizontal frame A may be assembled on site by connecting the horizontal wire 2 to the wire mesh form 1.

Even when the horizontal wire 2 is connected to the wire netting frame 1, the horizontal wire 2 is rotatable, so that the horizontal frame A can be folded and transported to the site. That is, it can be folded and transported easily. In this case, at the site, the horizontal wire 2 is rotated from the folded state, as shown in FIG.

At this time, since the leg 2b of this embodiment is rotatably connected to the connecting wire 2e by the engaging portion 2d,
All the legs 2b rotatably connected by the connecting wire 2e can be folded or unfolded simultaneously. That is, the horizontal frame A can be made easier to handle, thereby reducing the labor required for construction. 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.
After the reticulated body 5 is stretched thereon, four rebars 6 are arranged on the reticulated body 5 so as to be positioned at the four corners of the hoop rebar 4, and are arranged in a state of floating in a lattice shape. A horizontal frame 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 places deemed necessary after the laying of the horizontal frame A.

That is, the plurality of vertically spaced spacing members 9 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 vertically spaced members. Of the hoop streaks 4 disposed on the valley side with the leg 2c or the wire netting frame 1 on the valley side.
And an opening preventing member 11 is erected between the two legs 2b and 2c below the legs 2b and 2c. Thus, the opening of the wire mesh form 1 can be prevented, and the distance m between the wire mesh form 1 and the reinforcing bar 6 can be maintained.

That is, mortar or concrete is sprayed on the horizontal frame A and the vertical frame A ′ assembled in this manner to form the normal frame 15. Even if the corresponding beam has a very large cross-sectional area, the spacing members 9 and the opening preventing members 11 open the legs 2b and 2c of the mesh form 2 due to the weight of the mortar or concrete or the pressure of the spraying. The beam 2a can be laid in a predetermined place where the mortar or concrete method frame 15 is formed by a single spraying, without being bent downward.

In particular, in the present invention, the horizontal frame A has a pair of legs 2b and 2c, and a plurality of horizontal wires 2 that straddle the reinforcing bar 6.
And the leg 2b on the valley side of the reinforcing bar 6 among the legs 2b and 2c.
c, and a wire mesh form 1 that forms a surface portion that covers the valley side of the reinforcing bar 6 by locking the leg 2c to each of the loop portions 3 to lock the leg portions 2c. A large opening for mortar or concrete is formed on the mountain side of the frame A. Therefore,
When spraying mortar or concrete on the horizontal frame A of the present invention, there is no obstacle to spraying,
As a result, reliable spraying can be performed, and a high-strength legal frame can be formed.

In the above-described example, the structure of the vertical frame A 'which is disposed vertically with respect to the slope of the slope is such that two metal mesh frames facing each other are connected by an inverted U-shaped horizontal wire. Thus, the wire mesh form is arranged on both side surfaces of the reinforcing bar 6. However, the configuration of the vertical frame A ′ may be the same as that of the horizontal frame A of the present invention so that reliable mortar or concrete can be more easily sprayed into the vertical frame A ′. Needless to say.

Further, as shown in FIG. 4 (A), the horizontal frame A of the present invention is different from a conventional mold in which a ceiling portion and both side legs are integrally formed by welding with the same wire. The horizontal frame A can be obtained simply by forming the horizontal wire 2 and the wire netting frame 1 constituting the horizontal frame A separately, and inserting the horizontal wire 2 into the ring 3. Therefore, the construction cost can be reduced. Also, the horizontal wire 2 is connected to the ring body 3
, The horizontal wire 2 is rotatable, so that the horizontal wire 2 can be folded at the time of transportation, so that the horizontal wire 2 and the wire mesh frame 1 can be folded without feeling inconvenience in transportation as in the conventional case.
Can be separated, which makes transporting easy.

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

In this example, as shown in FIG. 4B, a ring 3 is formed inside the wire mesh form 1 (on the side of the slope) so that the horizontal frame A can be folded. It can be done easily. However, the present invention provides a wire mesh form 1
However, the configuration of the locking portion 3 of the leg 2 c is not limited to the ring 3 formed inside the wire mesh form 1. That is, the ring body 3 may be formed outside the wire mesh form frame 1.

Further, as the locking portion 3, it is possible to form a concave portion for inserting the leg 2c by bending a part of each horizontal wire constituting the wire netting frame 1. Furthermore, leg 2
The locking between the wire c and the wire netting form 1 may be performed by fixing with a C-ring gun or by binding with a binding wire. In any case, the horizontal frame A for forming the legal frame of the present invention
Can assemble the horizontal frame body A without welding, so that the labor required for manufacturing the horizontal frame body A can be reduced, and the cost can be reduced accordingly. Further, the various forming methods of the locking portion 3 are applicable to the following various embodiments.

FIG. 5 shows a second embodiment of the present invention in which a trapezoidal shape as viewed from the front is formed by using a horizontal wire 2 having an equilateral trapezoidal shape as viewed from the front. In FIG. 5, the same components as those shown in FIGS. 1 to 4 are the same or equivalent.

In the case of this example, the legs 2b,
The stability of the horizontal wire A is improved by setting the bending angle β of 2c to an obtuse angle of more than 90 °. In this example, since only one connecting wire 2d is attached to the leg 2b, the angle of the bending angle β is not limited. When the connecting wire 2d is provided, it is desirable to set an angle such that the horizontal wire 2 can be rotated and the horizontal frame A can be freely folded, for example, 90 ° <β <110 °.

The hoop reinforcement (reinforcing cage) 4 may be floated and fixed by the opening preventing member 11 instead of the anchor pin 7 in each of the above embodiments.

FIG. 6 shows a second embodiment of the present invention in which a reinforcing bar 6 is applied to a double reinforcing bar in which the reinforcing bar 6 is disposed on the mesh member 5 and on the top beam 2a of the inverted U-shaped horizontal wire 2 which is flat when viewed from the front. 3 shows a third embodiment. In FIG. 6, the same components as those shown in FIGS. 1 to 5 are the same or equivalent.

In this double-arrangement type, two reinforcing bars 6 are placed on the mesh 5 at an interval, and the reinforcing bars 6 are tied to the mesh 5 with wires in some places.
And furthermore, two reinforcing bars 6 are placed on the top beam 2a of the horizontal wire 2 at an interval, and these are connected to the wire 2f.
The horizontal wire 2 is tied to the reinforcing bar 6 by binding. That is, the horizontal wire 2 is configured to have a binding portion that is 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 form 1 is about 10 cm, and the leg 2 of the horizontal wire 2
The heights of b and 2c are lower than the height H of the wire mesh formwork 1.

FIGS. 7 and 8 show a case where the wire mesh form 1 is used to form a surface portion covering the valley side of the reinforcing bar 6, and the lower part of the wire mesh form 1 and the leg 21a of the horizontal wire 21 are opened to prevent the member 20 from opening. And two or three ring bodies 3 are attached to the upper part of the wire netting frame 1, and the horizontal wire 21 is attached to the ring body 3.
By inserting the leg 21b on the valley side of the
b and the wire mesh form 1 are engaged with each other,
9 shows a fourth embodiment of the present invention configured to carry the information. 7 and 8, the same components as those shown in FIGS. 1 to 6 are the same or equivalent.

In this case, the horizontal wire 21 is formed in a concave polygonal shape as viewed from the front side having one convex portion 22 and two concave portions 23, and the reinforcing bar 6 is bound to the two concave portions 23 with a wire or the like to be floated and held. It is.

The opening preventing member 20 is formed of a wire having two convex portions 24 that are upwardly convex.
4, a reinforcing bar is tied up with a wire or the like and held in a floating state. The opening preventing member 20 has one of the ring portions 26 provided at both ends connected to the vertical wire of the wire mesh form 1 and the other connected to the leg 21a. Therefore, since the opening preventing member 20 is rotatable, the horizontal frame A of this example can be folded during transportation. That is, it can be folded without feeling inconvenience in transportation as in the related art.

It should be noted that instead of the rotatable opening prevention member 20, the opening prevention member 20 having hooks at both ends is provided.
Alternatively, an opening prevention member 20 having a hook in the shape of a hook at one end and a ring portion 26 at the other end may be used.

FIG. 9 shows that the valley side surface of the reinforcing bar is formed by using the wire mesh form 1, and the lower portion of the wire mesh form 1 and the horizontal wire 2 are formed.
The first leg 21a is rotatably connected with the opening preventing member 20, and two or three ring members 3 are attached to the upper part of the wire netting frame 1. On the ring member 3, the valley side of the horizontal wire 21 is attached. A fifth embodiment of the present invention is shown in which the leg 21b is inserted into the wire mesh form 1 by inserting the leg 21b, and the reinforcing bar 6 is placed on the horizontal wire 21. In FIG. 9, the same components as those shown in FIGS. 1 to 8 are the same or equivalent.

In this case, the horizontal wire 21 is formed in a concave polygonal shape in front view having two convex portions 22 and one concave portion 23a.
The reinforcing bar 6 is tied up with a wire or the like in the one concave portion 23a and held in a floating state. Similarly, when forming a normal frame of an oblique lattice using the horizontal frame body A of each of the above-described embodiments, it is sufficient to install the wire netting frame 1 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 low-cost horizontal frame for forming a legal frame, which can be freely folded and can be easily divided. In addition, when spraying from above, there are few obstacles to the spraying of mortar or concrete, and a smooth and reliable spraying frame can be constructed. Furthermore, according to the present invention, when increasing the size of an existing legal framework, without removing the existing legal framework, by installing a form over the existing legal framework, the `` additional '' of mortar or concrete can be performed. It is possible.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an entire configuration showing a construction state according to 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. (B) is a figure which shows the assembly procedure in the said embodiment.

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

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

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

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

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

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wire mesh formwork (mesh formwork) 2: Horizontal wire material 2b, 2c ...
Legs, 3 ... Ring body (locking portion), 6 ... Reinforcing bar, 8 ... Hook, 9 ... Spacing member, 11 ... Opening prevention member, 15 ... Law frame, A ... Horizontal frame, N ... Slope.

Claims (3)

[Claims] Claims: 1. An apparatus having an appropriate interval on a slope,
In a horizontal frame for forming a legal frame by spraying mortar or concrete, a plurality of horizontal wires having a pair of legs, and a plurality of hooks each for locking one of the legs. A horizontal frame for forming a legal frame, comprising: a mesh form having a stop. 2. A horizontal frame body which is disposed on a slope so as to cover a reinforcing bar arranged laterally on the slope and which is sprayed with mortar or concrete to form a slope. A plurality of horizontal wire members including a leg and straddling the reinforcing bar, and a plurality of locking portions for locking the leg of the leg closer to the valley than the reinforcing bar are provided, and the leg is engaged with each of the locking portions. A mesh frame that forms a surface portion that covers the valley side of the reinforcing bar by stopping the horizontal frame body. 3. A connecting wire having a plurality of locking portions for locking the legs on the mountain side of the legs.
Or a horizontal frame for forming a legal frame according to 2.