JP3030494B2 - Crimp wire mesh structure and formwork device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimped wire netting structure and a formwork apparatus using the same.
The present invention relates to a crimped wire mesh structure that is safe, easy to handle, and excellent in strength, and a formwork device using the same.

[0002]

2. Description of the Related Art There are various types of wire mesh, such as woven wire mesh, turtle wire mesh, and diamond wire mesh, and are widely used for mining and industrial use, civil engineering construction, home use, and the like. A crimped wire mesh is one of them, and has a structure in which wires formed in a wavy shape are combined vertically and horizontally, and the wire is less likely to be displaced than other wire meshes, so that the strength is excellent. By the way, in the construction of various concrete structures, in addition to the usual formwork construction, that is, construction using many materials such as separators, thick ends or snap fittings, this crimped wire mesh is used as a formwork plate to be used. A construction method that simplifies construction by embedding is used. In addition, the crimped wire mesh used in the above case is usually subjected to a rust-proof treatment in order to prevent a decrease in strength due to corrosion.

[0003]

However, the conventional crimped wire mesh as described above has the following problems.
That is, since the crimped wire mesh is formed by weaving the vertical wire and the horizontal wire formed in a wave shape, the vertical wire and the horizontal wire are less likely to be structurally displaced from each other. Therefore, a material obtained by simply cutting vertical and horizontal wires into a predetermined shape is used. However, cutting alone causes a large number of wire ends to protrude from the outer edge of the crimped wire mesh. For example, when used as a formwork in the above-described construction of a concrete structure, such wire ends are required during work. It is dangerous and requires careful handling, such as cutting your finger in contact with the product or breaking your clothes by hooking it.

[0004] Further, during construction using crimped wire netting, such as slope reinforce- ment work on an expressway, there is a case where an operator must work with a lifeline. However, if the end of the wire protrudes from the outer edge of the crimped wire net, the lifeline is likely to be caught on the end of the wire, which is dangerous because the worker cannot move smoothly. Furthermore, when finishing the concrete surface with iron when used as a formwork plate,
The work is difficult because the iron is caught on the end of the wire.

In order to prevent the end of the wire rod from projecting,
There have been proposed ones in which an iron flat plate is attached to the end of the crimped wire net by welding, and one in which the end of the wire at the end is bent into a hook shape so as to engage with the wire at the outer edge. However, the former requires higher manufacturing costs and heavier weight. Further, the latter has a problem that the bending process is troublesome, and furthermore, the engaging portion is easily detached.

Therefore, the present invention has prevented the fingers from being cut by the crimped wire mesh and the clothes from being broken by being caught during various operations using the crimped wire mesh.
An object of the present invention is to provide a crimped wire mesh structure that is safe and easy to handle. Further, another object of the present invention is, for example, in reinforcement work of a slope of a highway, a lifeline of a worker is hard to be caught, and work can be performed smoothly and safely.
Another object of the present invention is to provide a formwork apparatus using a crimped wire net, which can easily work on a concrete surface when used as a formwork. Still another object of the present invention is to provide a crimped wire mesh structure which can be manufactured relatively easily and the manufacturing cost can be reduced, and a formwork apparatus using the same.

[0007]

Means of the present invention taken to solve the above problems are as follows. The first means is a crimped wire mesh structure formed by weaving a required number of wires, and the crimped wire mesh structure has an intersection between a vertical wire and a horizontal wire as outer edges, The intersections of the vertical and horizontal wires and other vertical and horizontal wires are welded, and the ends of the vertical and horizontal wires project outward from the vertical and horizontal wires. The crimped wire mesh structure is cut so as not to be cut, and the intersection including the welded portion is covered with a covering means having a rust preventive action.

The second means is a crimped wire mesh structure formed by weaving a required number of wires, and the crimped wire mesh structure has an intersection between a vertical wire and an outer wire which is an outer edge. And the intersection of the vertical wire and the horizontal wire with the other vertical wire and the horizontal wire are welded, and the vertical wire and the horizontal wire have the wire ends of the vertical wire and the horizontal wire. A crimped wire mesh structure including a cut portion so as not to protrude outward, and a crossing portion including the welded portion is covered with a covering means having a rust preventive action.

[0009] The third means is a formwork device used in the construction of a concrete structure, and the formwork device is provided with a crimp according to the first or second means via an attaching means. A formwork device in which wire mesh structures are mounted face to face at required intervals.

[0010] The coating means is not particularly limited as long as it has a rust-preventive action, and includes, for example, natural resins such as natural rubber, synthetic resins such as plastics, and resin-based paints. Further, a resin or ceramic or a material provided by spraying a metal such as aluminum, zinc, brass, or copper may be used.

The strength is further improved by welding the intersection between the vertical wire and the horizontal wire, which is the outer edge, one wire inside or further inside the vertical wire and the horizontal wire, with the other vertical wire and the horizontal wire. It can also be done. In the vertical wire and the horizontal wire, a portion where the wire end of the other vertical wire and the horizontal wire does not protrude outward from the vertical wire and the horizontal wire is over the entire length of the vertical wire and the horizontal wire. Some, or only some.

[0012]

The intersection between the vertical wire and the horizontal wire, which is the outer edge, and the intersection between the vertical wire and the horizontal wire and the other vertical wire and the horizontal wire are welded. It can be prevented from being separated, and the strength can be further improved. In addition, if the ends of other vertical and horizontal wires do not protrude outward from the vertical or horizontal wires that are the outer edges, cut your fingers or hook your clothes and break. Inconvenience such as doing is unlikely to occur. Further, the work using the lifeline at the time of forming the formwork is also performed at a portion where the ends of the other vertical and horizontal wires do not protrude outward from the vertical and horizontal wires which are outer edges. Work can be done safely without getting caught.

Since the rust preventive agent such as plating is melted off by welding heat in the welded portion of each wire, the welded portion is corroded as it is. However, since the intersection including the welded portion is covered by the covering means having a rust-preventing action, the welded portion is hardly corroded and can maintain strength.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings. FIG. 1 is a front view of an essential part showing one embodiment of a crimped wire mesh structure according to the present invention. Crimp wire mesh structure A
Is composed of a rectangular mesh which is rust-proofed by plating and is woven with a wire formed in a wavy shape, and has a longitudinal vertical wire 1, 1 (one of which is an outer edge). Is not shown), and the lateral side wire 2, which is also the outer edge,
2 (one not shown). This vertical wire 1,
1 and the horizontal wire members 2 and 2 intersect at right angles, and four intersections P1... (Three of them are not shown) are fixed by welding. Further, the intersections P1... Including the welded portions are covered with a resin J.

A required number of vertical wires 3... And horizontal wires 4... Are woven at right angles inside the vertical wires 1 and 1 and the horizontal wires 2 and 2. The intersection P2 between the vertical wire 3 and the horizontal wire 2 is welded, and the intersection P2 including the welded portion is covered with resin J. is there. Similarly, the intersections P3... Of the horizontal wires 4... And the vertical wires 1 and 1 are also welded, and the intersections P3. I have. The end portions of the vertical wires 3... And the horizontal wires 4... Do not protrude outside the vertical wires 1 and 1 and the horizontal wires 2 and 2. Wire rod 2,
2 is cut along.

(Operation) The vertical wires 3... And the horizontal wires 4... Of the crimped wire mesh structure A are intersections P2. .. Can be prevented from being separated from the vertical wire 3 and the horizontal wire 4, and the strength can be further improved. Vertical wire 3 ... and horizontal wire 4 ...
Are cut along the vertical wires 1 and 1 and the horizontal wires 2 and 2 so as not to protrude outward. Therefore, inconveniences such as cutting a finger or hooking and breaking clothes are less likely to occur as compared with a conventional crimped wire netting simply cutting a wire.

The intersections P1, P2, P
No. 3 is susceptible to corrosion as it is because the plating has melted off due to the heat of welding, but the intersections P1, P2,
After welding, P3 is covered with a resin J having a rust-preventive action, so that it is hardly corroded and can maintain its strength.
Furthermore, the resin J is safe without injuries such as cutting a finger at the cutting corners of the vertical wires 3 and the horizontal wires 4. Therefore, it is easy to handle in various operations.

In the manufacturing process, the vertical wires 3... And the horizontal wires 4.
.. by welding the intersections of the vertical wires 1 and 1 and the horizontal wires 2 and 2 and the vertical wires 3... And the horizontal wires 4.
Cut the ends of the wires so that they do not protrude outward from the vertical wires 1 and 1 and the horizontal wires 2 and 2, and apply resin J to the intersections P1, P2 and P3 including the welded portions. Since it is only necessary to cover the substrate, it can be manufactured relatively easily and the manufacturing cost can be reduced.

The ends of the wires 1, 2, 3 and 4 are not necessarily cut over the entire length of the vertical wires 1 and 1 and the horizontal wires 2 and 2 which are outer edges. The vertical wires 3 projecting from the lower horizontal wire 2 buried in the soil when used as a mold plate can be formed as required, for example, without cutting.

FIG. 2 is a perspective view showing an embodiment of the formwork apparatus according to the present invention. Forming device B is a crimped wire mesh structure A
Are provided with two form plates A2, A2 formed appropriately in size and a strip bar 5 constituting an attachment means. In the drawings, the reference numerals of the detailed portions of each mold plate A2 are omitted.
The stirrups 5 are formed as a pair of upper and lower bars, and each pair is configured to have a “#” shape via a connecting bar 7, and the number of pairs is appropriately fixed to the reinforcing bars 6 of the construction part. Further, the number of the form plates A2 is not limited to the above, and is appropriately set according to the scale and state of the construction. In actual construction, the form plate A2 is connected by a required number of wire lines, connecting metal fittings, and the like in the vertical and horizontal directions so as to match the shape and size of the construction portion.

At both ends of each band 5, an engaging portion 50 is formed by bending it into an L shape. Form plates A2, A2 are arranged in parallel to face each other at both ends of each of the straps 5 so as to be engaged with the inside of each of the engaging portions 50. The size of the mesh of the form plates A2, A2 is such that the aggregate in the concrete to be poured does not pass through and the mortar part slightly exudes (for example, 10 mm × 25 mm, 15 mm × 30 mm, etc.). Is set. The diameter of each wire is not particularly limited, but is, for example, 2.0 to 2.6 mm.

(Operation) According to this, after the concrete is poured, the mortar oozing out from the mold plates A2, A2 is applied to the surfaces of the mold plates A2, A2 with a trowel or the like to easily finish the surface. it can. The ends of the vertical wires 3... And the horizontal wires 4.
Since the form plates A2, A2 which do not protrude outward from the first and side wires 2, 2 can be used, it is possible to prevent clothes from being caught or injured during work, and to finish the concrete surface with a trowel. The iron is not caught on the surface and the finishing work is easy. Furthermore, even in work using a lifeline, such as reinforcement work on a slope of a highway, the end of the wire does not protrude from the outer edge of the crimped wire mesh structure A2. Easy to move to work.

[0023]

The present invention has the above configuration and has the following effects. (A) The intersection of the vertical side wire and the horizontal side wire, which is the outer edge, and the intersection of the vertical side wire and the horizontal side wire with other vertical wire and the horizontal wire are welded. It can be prevented from being separated, and the strength can be further improved.

(B) Of the vertical side wire and the horizontal side wire, which are the outer edges, the ends of the other vertical wire and the horizontal wire do not protrude outward from the vertical side wire and the horizontal side wire. Is
Compared to a conventional crimped wire net simply obtained by simply cutting a wire rod, inconveniences such as cutting a finger or catching clothes are less likely to occur and handling is easier.

(C) The welding portion of each wire is liable to be corroded because the rust prevention means such as plating has melted off due to the heat of welding. Since it is covered with a covering means having a rust-preventive action after welding, the strength is hardly reduced by corrosion.

(D) When used as a formwork plate of a formwork apparatus, only a necessary portion of the outer edge, for example, only the outer edge which becomes the upper surface at the time of construction, is a wire end of another wire. Can be formed so as not to protrude, so that the manufacturing cost can be reduced and the manufacturing time can be further reduced.

(E) In manufacturing, the intersections of the vertical and horizontal wires, which are the outer edges, with the other vertical and horizontal wires are welded, and the ends of the wire are vertically and horizontally connected. , And the intersection including the welded portion need only be covered with the covering means having a rust-preventive action, so that the production can be made relatively easily and the production cost can be reduced.

(F) In a formwork apparatus in which the crimped wire mesh structure according to the present invention is attached to each other at a predetermined interval via an attachment means, the work may be injured by the crimped wire mesh during work or clothing may be worn. Can be prevented from being caught and broken, and work can be done safely. Also, for example, in work using a lifeline such as reinforcement of a slope of a highway, if the end of the wire does not protrude from the outer edge of the crimped wire mesh structure, the lifeline will not be caught and work will be performed. People can move smoothly, work is easy and safe. Also, when the concrete surface is finished with an iron when used as a formwork plate, the iron is not caught and the finishing work is easy.

[Brief description of the drawings]

FIG. 1 is a front view of a main part showing an embodiment of a crimped wire mesh structure according to the present invention.

FIG. 2 is a perspective view showing an embodiment of the formwork apparatus according to the present invention.

[Explanation of symbols]

 A Crimp wire netting structure 1 Vertical wire 2 Horizontal wire 3 Vertical wire 4 Horizontal wire P1, P2, P3 Intersection J Resin B Form device A2 Form plate 5 Strip 7 Connecting bar

Claims (3)

(57) [Claims] 1. A crimped wire mesh structure formed by weaving a required number of wires, wherein the crimped wire mesh structure has an intersection between a vertical wire (1) and a horizontal wire (2) as outer edges. (P
1), this vertical wire (1), horizontal wire (2) and other vertical wires
(3) and the intersection (P2, P3) with the horizontal wire (4) are welded, and the wire ends of the vertical wire (3) and the horizontal wire (4) are welded with the vertical wire (1) and It is cut so as not to protrude outward from the horizontal wire (2), and the intersections (P1, P2, P3) including the above welded portions are covered with a covering means having an antirust effect. A crimped wire mesh structure. 2. A crimped wire mesh structure formed by weaving a required number of wires, the crimped wire mesh structure having an intersection of a vertical wire (1) and a horizontal wire (2), which are outer edges. (P
1), this vertical wire (1), horizontal wire (2) and other vertical wires
The intersection (P2, P3) between (3) and the horizontal wire (4) is welded, and the vertical wire (1) and the horizontal wire (2) are welded to the vertical wire (3).
And the crossed part (P1, P2, P3) including the welded part is covered by a covering means having a rustproof action. A crimped wire mesh structure, characterized in that the wire mesh structure is coated with a crimp. 3. A formwork device used in the construction of a concrete structure, wherein the formwork device faces the crimped wire netting structure according to claim 1 or 2 at a required interval via mounting means. A formwork device characterized by being fitted together.