JPH0960196A - Bar arrangement base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support reinforcing bars in a stable manner so that arrangements of reinforcing bars can be easily made and work efficiency can be improved by a method wherein a first and second mount parts each having a concave cross section are caused to intersects each other at the center thereof and legs are continuously extended downward from the mount parts. SOLUTION: A first mount part 4 having a concave cross section, on which a reinforcing bar 10A is mounted, is extended in one direction. And second mount parts 5, 5 each having concave cross section are provided in such a manner that each of the parts 5, 5 extends from the central portion of the part 4 perpendicularly thereto and is raised upwardly of the part 4 so as to receive a reinforcing bar 10B. Further, a press plate 6 is formed from a portion of each of the parts 4, 5 in the form of a belt 6, and legs 2a, 2b, 2b are continuously extended downwardly from the parts 4, 5. As a result, bars 10A, 10B can be stably supported and deformation of bars can be prevented and construction work can be smoothly performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar used at a construction site such as a building for reinforcing bars when forming a floor or the like.

[0002]

2. Description of the Related Art When forming a floor or the like, it is necessary to arrange the reinforcing bars in a vertical and horizontal lattice pattern at design dimension intervals to allow concrete to flow. It is necessary to float 30 to 50 cm. Conventionally, concrete dice and plastic moss have been laid under the reinforcing bars to float them from the ground.

[0003]

However, there is a problem in that these dice and Koshikake merely support the reinforcing bar and cannot fix the reinforcing bar. In addition, since it is not possible to fix itself, it has a drawback that it is easily moved, and that it easily falls and collapses. For this reason, when arranging the reinforcing bars, when the user steps on the rebars that have been assembled, the binding lines are cut, and dice and moss move or fall, which easily causes the rebar arrangements to collapse. And, due to the deviation of the bar arrangement pitch, the arrangement of the reinforcing bars is complicatedly entangled, which makes it difficult to set up the construction. This invention was made in order to solve these problems, not only simply supporting the reinforcing bar, but also preventing the deformation of the reinforcing bar, and providing a reinforcing bar that can help smooth reinforcing bar. To aim.

[0004]

In order to solve the above-mentioned problems, a reinforcing bar of the present invention has a first mounting portion on which a reinforcing bar is mounted, which is formed with a concave cross section and extends in one direction. A second section having a concave cross-section, which is formed to extend in a direction perpendicular to the first placing section from a central portion in the longitudinal direction of the first placing section, and which is formed by being raised above the first placing section. It is characterized in that it is provided with a mounting portion, a holding plate formed in a band shape from a part of each of the mounting portions, and a leg portion that extends downwardly continuously from each of the mounting portions. Further, preferably, in addition to the above configuration, the first mounting portion and the second mounting portion are formed to have a substantially semicircular cross-section, and each of the legs has a lower end formed in a horizontal plane. In addition, the tip portion is bent downward to form a spike and a nail hole penetrating in the vertical direction is formed in the horizontal plane, and a protrusion protruding in the bending direction is bent in the pressing plate. It is a reinforcing bar characterized by being formed. More preferably, the reinforcing bar is formed by pressing an iron plate, and a rust-proof coating is applied to the lower ends of the legs.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The reinforcing bar 1 of the present invention will be described in more detail below. FIG. 1 is a perspective view showing an embodiment of a reinforcing bar 1 of the present invention. 2 and 3
[Fig. 3] is a front view and a side view, respectively, of the bar arrangement table 1 of this embodiment. The reinforcing bar 1 of this embodiment has a thickness of 1 to 1.2 mm.
It is formed by pressing an iron plate of a certain size. In this bar arrangement 1, four legs 2 are integrally joined by a joining part 3 at the upper center, and the legs (2a, 2b) facing each other are located on a straight line and adjacent to each other. The legs (2a and 2b) are vertically formed.

As shown in FIG. 3, the front and rear legs 2a are formed so as to extend downward through a first mounting portion 4 which extends in the front and rear of the coupling portion 3. The left and right legs 2b are shown in FIG.
As shown in FIG. 5, the first mounting portion 5 is formed so as to extend downward from the coupling portion 3 via the second mounting portion 5 which is raised in a mountain shape and bent and formed. Therefore, the second mounting portion 5 is located above the first mounting portion 4. Each of the placing portions 4 and 5 and each of the legs 2a and 2b are formed by bending in a semi-circular shape in cross section, and if formed in an arc shape having a size suitable for the cross section of the reinforcing bar 10 to be placed, This is preferable because the reinforcing bar 10 can be placed stably.

A pressing plate 6 extending in a belt shape from one side is integrally formed on a part of each of the mounting portions 4 and 5. This pressing plate 6 can be bent toward the placing portions 4 and 5 by hitting with a hammer, and the placing portions 4 and 5 can be bent.
It is used to fix the reinforcing bar 10 placed on the. As shown in FIG. 1, if the tip portion 61 of the pressing plate 6 is slightly bent inward (on the side of the mounting portions 4 and 5), the reinforcing bar 10 will be bent when the pressing plate 6 is bent. It is convenient because it can be securely wound. The lower end of each leg 2 is bent and formed to be a horizontal plane 21.
The horizontal surface 21 has a substantially rhombic shape, and a tip portion thereof is bent downward to form a spike 22. Further, a nail hole 23 is formed through the horizontal surface 21 so that a concrete nail can be inserted therethrough.

Next, the usage of the reinforcing bar 1 of the present invention will be described. FIG. 4 is a perspective view showing a usage state of the reinforcing bar 1 of the present invention. This bar arrangement base 1 is used by fixing the lower ends of the legs 2 to a horizontal installation surface such as the ground. This is done by hitting the spike 22 formed on the leg 2 with a hammer and piercing the ground, but when the installation surface is hard such as concrete, the nail hole formed in the lower part of the leg 2 Secure with concrete nails through 23. At this time, the spike 22 can be crushed by hitting the leg portion 2 of the reinforcing bar 1 on the concrete surface with a hammer, and the spike 22 does not interfere.

In this way, the required number of the plurality of reinforcing bar arrangements 1 are installed so that the respective first placing portions 4 are located on a straight line. Then, the reinforcing bar 10A is placed on the first placing part 4 of each bar arrangement table 1. After that, by hitting the pressing plate 6 of each first placing part 4 to sandwich the reinforcing bar 10A between the first placing part 4 and the first placing part 4, the reinforcing bar 10A is reliably fixed. Since the first placing portion 4 has a substantially semi-cylindrical cross section, the reinforcing bar 1
0A is stably fixed. Next, in the direction perpendicular to the reinforcing bar 10A thus provided, another reinforcing bar 10B
Place. Also in this case, the required number of second placing parts 5 are installed so as to be aligned with each other, and the reinforcing bars 10 are straddled over them.
B is arranged, and it is securely fixed with the presser plate 6.

Further concrete reinforcement work will be described below. FIG. 5 is a plan view showing a reinforcing bar arrangement state. As the reinforcing bar 10, for example, a general reinforcing bar having a length of 6 m is used. That is, X and Y in FIG. 5 are set to 6 m, and the reinforcing work is performed with this square as one unit. The reinforcing bar 1 of the present invention is installed at a main portion, for example, at each joint portion for arranging the reinforcing bars 10 in the shape of a "field" so as to at least divide the square into four equal parts. Needless to say, the number of bar arrangement bases 1 and the positions of the bar arrangement bases 1 can be changed appropriately. The bar arrangement table 1 is installed such that the first placing part 4 is located in the front-rear direction (Y direction) and the second placing part 5 is located in the left-right direction (X direction) in the figure. Then, first, the reinforcing bars 10A are placed on the first placing portions 4 of the respective bar arrangements 1 arranged in the front-rear direction and fixed by the presser plate 6. Then, next, the reinforcing bars 10B are placed on the second placing portions 5 of the respective bar arrangements 1 arranged in the left-right direction and fixed by the presser plate 6. In this way, the processing of the main reinforcing bars 10A and 10B is completed.

Then, at a distance of 20 to 30 cm, the rebar 1
Place 0C vertically and horizontally and fix it with a binding wire. FIG.
It shows a state in which all the bar arrangements have been completed using the bar arrangement table 1 of the present invention. As shown in FIG. 6, in the bar arrangement 1 fixed to the ground with the spikes 22 and concrete nails, after the reinforcing bars 10A are arranged on the first placing part 4, the reinforcing bars 10B are arranged on the second placing part 5. The secondary reinforcements 10C are fixed to the main reinforcements 10A and 10B with the binding wires 12 so that the reinforcements 10 are arranged in a matrix in the vertical and horizontal directions. Note that FIG.
Then, in order to increase the strength of the concrete 11, the reinforcing bar 1A is used at the same time by using the reinforcing bar 1A whose height dimension is halved.
It is shown that the two are vertically arranged, but it goes without saying that they may be used in a single layer. Further, as is clear from FIG. 6, the holding plate 6 is fixed in a state where the reinforcing bar 10A placed on the first placing portion 4 is fixed by the holding plate 6.
If the upper end surface of the second mounting portion 5 is configured to be the same as the height of the second mounting portion 5, the reinforcing bars 10B arranged on the second mounting portion 5 can be stably arranged, which is convenient. For this,
For example, when a reinforcing bar having a diameter of about 10 to 13 mm is used, (h2-h1) is 15 m in FIGS.
m.

Further, in FIG. 5, when it is desired to reinforce the surroundings to make a wide floor or the like, by using the one shown in FIG. 7 for the rebar base 1 at the side end of the square, The area can be expanded sequentially. FIG. 7 is a perspective view showing a use state of the reinforcing bar 1B. As shown in this figure, two reinforcing bars 10 can be placed side by side on each of the placing parts 4 and 5. It is a thing. In addition, the presser plate 6 is also formed to have a correspondingly long length.
Note that, similarly, two reinforcing bars 10 can be placed on one placing section 4 and only one reinforcing bar 10 can be placed on the other placing section 5, for example. Can be changed appropriately.

FIG. 8 is a perspective view showing another embodiment of the bar arrangement table 1 of the present invention. The reinforcing bar 1C of this embodiment is shown in FIG.
The structure is almost the same as that of the reinforcing bar 1, but the lower end of the leg 2 is formed in a quadrangular shape, and the tip of the pressing plate 6 projects in the direction in which the pressing plate 6 is bent. The difference is that the protrusions 62 are curved. When the reinforcing bar 1 of each of the above-described embodiments is used when forming a floor or the like on the second floor of a building, it is preferable to apply rust preventive coating to the lower part of the leg 2 of the reinforcing bar 1. This is to prevent the lower end portion of the leg portion 2 from being exposed from the side of the first floor after the construction to make the appearance unpleasant and to prevent this portion from being corroded. Further, not only the lower end portion of the leg portion 2 but also the entire reinforcing bar 1 may be subjected to rust-preventive coating, or the reinforcing bar 1 may be formed of a material having corrosion resistance. Further, it is preferable that the lower surface of the leg portion 2 is colored in the same color as concrete, for example, so that the exposed portion is not noticeable.

[0014]

As described in detail above, according to the bar arrangement of the present invention, the placing portion for supporting the reinforcing bar is formed in a concave shape in cross section, so that the reinforcing bar is stably supported and the pressing plate is held. By securely sandwiching the reinforcing bars with the placing portion by the above, there is no inconvenience that the intervals are displaced when the reinforcing bars are installed. Further, since the reinforcing bar is fixed to the reinforcing bar by hitting the pressing plate with a hammer to hold the reinforcing bar between the pressing plate and the placing portion, no binding wire is required and the construction is easy. Moreover, since the pressing plate is formed in a band shape, there is no possibility of cutting like the case of a binding wire. Furthermore, since the second placing part is formed by being raised above the first placing part, one rebar is placed on the first placing part, and the other reinforcing bar orthogonal to this is placed on the second placing part. By arranging on, the bar arrangement work can be performed regularly, the work setup is easy, and the work efficiency can be improved. In addition, if a horizontal surface is formed at the lower end of each leg, and a spike protruding downward or a nail hole penetrating vertically is formed here, it can be fixed more stably, and it will not fall down during use. It is possible to avoid the inconvenience. In addition, if the iron plate is formed by pressing, the manufacturing is easy and the cost can be reduced. Moreover, since the iron plate is used by bending the cross section into a concave shape, the strength during use can be further increased. Furthermore, if the bottom of the legs is rustproofed, even if it is used to form the floor of the second floor of the building, the bottom of the legs will be exposed from the side of the first floor after construction. Therefore, it is possible to prevent the appearance from being deteriorated and this portion from being corroded.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a reinforcing bar of the present invention.

FIG. 2 is a front view of the reinforcing bar of FIG.

3 is a side view of the reinforcing bar of FIG. 1. FIG.

FIG. 4 is a perspective view showing a use state of the reinforcing bar of FIG. 1.

FIG. 5 is a plan view showing a reinforcing bar arrangement state.

FIG. 6 is a cross-sectional view showing a use state of the reinforcing bar of the present invention.

FIG. 7 is a perspective view showing a usage state of another embodiment of the reinforcing bar of the present invention.

FIG. 8 is a perspective view showing still another embodiment of the reinforcing bar of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reinforcing bar 2 Leg part 3 Joining part 4 First placing part 5 Second placing part 6 Holding plate 10 Reinforcing bar 11 Concrete 21 Horizontal surface 22 Spikes 23 Nail hole 61 Tip part of the holding plate 62 Projection

Claims (3)

[Claims] 1. A concave cross-section is formed to extend in one direction,
A first placing portion on which the reinforcing bar is placed, and a first placing portion extending in a direction perpendicular to the first placing portion from a central portion in the longitudinal direction of the first placing portion. A second placing portion having a concave cross-section formed by being raised upward, a holding plate formed in a band shape from a part of each placing portion, and a leg portion continuously extending downward from each placing portion. A bar arrangement characterized by comprising and. 2. The first placing part and the second placing part are
The leg portions are formed in a substantially semicircular shape in cross section, and the lower end portions of the leg portions are formed in a horizontal plane, and the tip portions thereof are bent downward to form spikes, and the leg portions vertically penetrate the horizontal plane. The reinforcing bar according to claim 1, wherein a nail hole is formed, and a protrusion projecting in a bending direction is bent and formed on the pressing plate. 3. The reinforcing bar according to claim 1, wherein the reinforcing bar is formed by pressing an iron plate, and a lower end portion of the leg portion is coated with a rust preventive coating. The bar arrangement table described in.