JPH04247150A - Manufacture of reinforcement unit with web-reinforcement - Google Patents

Abstract

PURPOSE:To improve the productivity of reinforcement units by reducing the attaching work of web reinforcements to be wound around a main reinforcement group. CONSTITUTION:A large number of 1st reinforcements 30, 34 arranged in parallel are reinforced with 2nd reinforcements unitedly to construct a reinforcement lattice unit. In the above, reinforcement lattice units of wide width are bended to square lacking one side and connected to a main reinforcement group 28 together with I-shaped reinforcement lattice units of narrow width so as to enclose the periphery. As the result, 1st reinforcements 30, 34 become multiple reinforcements.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a reinforcing bar unit having abdominal reinforcing bars.

0002

[Prior Art] In the conventional pre-assembled construction method for reinforcing bar units having belly reinforcing bars (stirrup bars), for example, when manufacturing a beam unit, the upper main reinforcing bar is first stretched over a frame, and a large number of star bars are A common method for arranging stirrup reinforcement is to place lap reinforcement one by one, then set the lower main reinforcement at a reinforcement position parallel to the upper main reinforcement.

0003

[Problem to be solved by the invention] In the above method,
The main reinforcement and stirrup reinforcement will be supplied separately, and in particular, the stirrup reinforcement, which is normally extremely large, will be supplied to one
However, because the stirrup bars are attached to one main bar, it takes time to arrange the stirrup bars, which leads to poor productivity. Recently, devices have been proposed that automatically arrange stirrup reinforcements for small beams, but since the stirrup reinforcements are arranged one by one and tied to the main reinforcement, The problem remains that it takes a considerable amount of time to produce one piece. This invention has been made in consideration of the above circumstances, and its purpose is to save labor in abdominal reinforcement work and dramatically improve productivity.
An object of the present invention is to provide a method for manufacturing a reinforcing bar unit having abdominal reinforcing bars.

0004

[Means for Solving the Problems] In order to solve the above problems, the method for manufacturing a reinforcing bar unit having belly reinforcing bars of the present invention includes a plurality of first reinforcing bars arranged substantially parallel to each other, The first reinforcing bars are arranged around a main reinforcing bar group arranged substantially parallel to at least two reinforcing bar lattice units comprising at least one second reinforcing bar intersectingly connected to each first reinforcing bar. It is characterized by being joined to become the abdominal reinforcement of the main reinforcement group.

[0005]

[Operation] The plurality of first reinforcing bars that are to become abdominal reinforcing bars are assembled as a reinforcing bar lattice unit, and the reinforcing bar lattice units are assembled all at once around the main reinforcing bars, so that the first reinforcing bars become abdominal reinforcing bars.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Two embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing an example of equipment for carrying out the method according to the first embodiment of the present invention. In this example, the main reinforcing bars are arranged in advance, and a U-shaped reinforcing bar lattice unit and an I-shaped reinforcing bar lattice unit, which will be described later, are arranged thereto to manufacture a simple beam reinforcing bar unit. In FIG. 1, reference numeral 20 denotes a lattice unit stockyard, which is a place where a large number of wide reinforcing bar lattice units 22 shown in FIG. 2 and narrow reinforcing bar lattice units 24 shown in FIG. 3 are kept in stock. On the other hand, the reference numeral 26 in FIG. 1 is a main reinforcing bar stockyard, which is a place where a large number of long main reinforcing bars 28 (FIG. 4) are kept in stock.

The wide reinforcing bar lattice unit 22 shown in FIG. 2 has a plurality of first reinforcing bars 30 arranged in parallel at equal intervals in one plane. The first reinforcing bar 30 is
These are to be used as abdominal reinforcing bars, which will be described later, and both ends are made to have the same length. These first reinforcing bars 30 are reinforced and connected by a pair of second reinforcing bars (reinforcing reinforcing bars) 32 at their longitudinal center portions. The first reinforcing bars 30 and the second reinforcing bars 32 are arranged perpendicularly to each other, and their intersections are integrally connected by welding or the like. The narrow reinforcing bar lattice unit 24 of FIG. 3 also has first reinforcing bars 34 and second reinforcing bars 36,
It has a similar shape to the wide reinforcing bar lattice unit 22 in FIG. However, the first reinforcing bar 34 is the wide reinforcing bar lattice unit 2
Therefore, the narrow reinforcing bar lattice unit 24 as a whole is formed to be considerably narrower than the wide reinforcing bar lattice unit 22. Other dimensions are made identical to each other.

Both the wide reinforcing bar lattice unit 22 and the narrow reinforcing bar lattice unit 24 are supplied from the lattice unit stockyard 20 in FIG. 1 to the lattice unit bending device 40 by a lattice unit supply device 38. . In the lattice unit bending device 40, while receiving positioning assistance from the lattice unit bending and positioning device 42, the wide reinforcing bar lattice unit 22 is changed into the U-shaped reinforcing bar lattice unit 54 shown in FIG. 8, and the narrow reinforcing bar lattice unit 24 is Each is finished into an I-shaped reinforcing bar grid unit 56 shown in FIG. This process will be explained below.

First, as shown in FIG. 5, the left end portions of all the first reinforcing bars 30 of the wide reinforcing bar lattice unit 22 are bent by 135°. Next, as shown in FIG. 6, bend the right end portion by 135°. Furthermore, as shown in FIG. 7, the right center portion (outside of the second reinforcing bar 32) is bent by 90°. Next, the left center part (outside of the second reinforcing bar 32) is bent 90 degrees to create the state shown in FIG. 8 with one side open.
The U-shaped reinforcing bar lattice unit 54 is completed. Moreover, in this way, inwardly directed hooks 58 are formed at the ends of each first reinforcing bar 30 of the U-shaped reinforcing bar lattice unit 54. On the other hand, regarding the narrow reinforcing bar lattice unit 24, all the ends on one side are bent by 135 degrees as shown in FIG.
Bend the other end by 135° as shown in Figure 10, and
The glyph-shaped reinforcing bar grid unit 56 is completed. In this way, an inwardly directed hook 60 is formed at the end of each first reinforcing bar 34 of the I-shaped reinforcing bar lattice unit 56.

Returning to FIG. 1, a plurality of main reinforcing bars 28 (eight in the embodiment) are supplied from the main reinforcing bar stockyard 26 to a main reinforcing bar placement device 44 . In the main reinforcing bar arrangement device 44, eight main reinforcing bars 28 are arranged parallel to each other at equal intervals, four each at the top and bottom, as shown in FIG. That is, the upper main reinforcing bar group 50 is composed of four main reinforcing bars 28, and the four main reinforcing bars 28 are
The lower main reinforcing bars 52 made up of the main reinforcing bars 28 are arranged to face each other in parallel. The main reinforcing bar unit is then supplied to the beam reinforcing bar unit manufacturing area 48 while being held in that position by the main reinforcing bar position holding device 46 (FIG. 1).

In the beam reinforcing bar unit manufacturing area 48, FIG.
2, a U-shaped reinforcing bar grid unit 54 is attached to the upper and lower main reinforcing bar groups 50, 52, with the open side facing upward. At this time, the U-shaped reinforcing bar lattice unit 54 may be moved from below to above the main reinforcing bar groups 50 and 52 that are being held, so as to sandwich the main reinforcing bar groups 50 and 52. Alternatively, the upper and lower main reinforcing bar groups 50 and 52 may be simultaneously inserted from one end of the U-shaped reinforcing bar lattice unit 54 being held toward the other end. After this installation, the hooks 58 prevent the upper and lower main reinforcing bars groups 50, 52 and the U-shaped reinforcing bar lattice unit 54 from coming off from each other. Furthermore, as shown in FIG. 13, an I-shaped reinforcing bar lattice unit 56 is attached to the upper main reinforcing bar group 50. At this time, the I-shaped reinforcing bar lattice unit 56 is moved from above to below with the hooks 60 facing downward, and is hooked onto the main reinforcing bar groups 50 and 52. After this attachment, the hooks 60 prevent the upper main reinforcing bar group 50 and the I-shaped reinforcing bar lattice unit 56 from coming off from each other.

In this way, in the beam reinforcing bar unit manufacturing area 48, the reinforcing bar units 6 used for beams with a rectangular cross section are manufactured.
2 will be produced. Note that the reinforcing bar unit 62 is connected to the main reinforcing bar 28 and the U-shaped reinforcing bar lattice unit 5 while the binding device 64 of FIG. 1 moves from one end of the reinforcing bar unit 62 to the other end.
4 and the I-shaped reinforcing bar lattice unit 56 are bound together with a binding wire to prevent slippage. As described above, the large number of first reinforcing bars 30 of the U-shaped reinforcing bar lattice unit 54,
The many first reinforcing bars 34 of the I-shaped reinforcing bar lattice unit 56 are both used as belly reinforcing bars (stirrup bars) 66.

As is clear from the above description, in this embodiment, the two reinforcing bar grid units 54 and 56 can be incorporated into the main reinforcing bar groups 50 and 52 at once. Therefore, reinforcement work is simplified and labor-saving, and productivity is dramatically improved. Further, in the embodiment, the first reinforcing bars and the second reinforcing bars are connected perpendicularly to each other, and the first reinforcing bars in each reinforcing bar lattice unit are arranged at equal intervals from each other. , which also contributes to improving reinforcement accuracy.

Next, a method according to a second embodiment of the present invention will be explained below. Produced using this method,
This is a reinforcing bar unit consisting of two beams combined in a cross shape as shown in FIG. What is prepared here is a pair of U-shaped reinforcing bar lattice units 54 (FIG. 15) formed with an interval of 68 in the longitudinal direction of the second reinforcing bars 32, and a pair of U-shaped reinforcing bar lattice units 54 (FIG. 15) formed with an interval of 70 in the longitudinal direction of the second reinforcing bars 34. This is a pair of I-shaped reinforcing bar lattice units 56 (FIG. 16) formed at the same time.

First, as shown in FIG. 17, the aforementioned lower main reinforcing bar group 52 is arranged in each U-shaped reinforcing bar lattice unit 54 with the open side placed on top. As shown in FIG. 18, both U-shaped reinforcing bar lattice units 54 are placed with their open sides on top so that their spacings 68 overlap.
are combined orthogonally into a cross.

On the other hand, as shown in FIG. 19, an upper main reinforcing bar group 50 is arranged in each I-shaped reinforcing bar lattice unit 56. Then, one I-shaped reinforcing bar lattice unit 56 is temporarily assembled onto one U-shaped reinforcing bar lattice unit 54 with the hooks 60 facing down (FIG. 20). Next, the other I-shaped reinforcing bar lattice unit 56 is attached onto the one U-shaped reinforcing bar lattice unit 54 with the hooks 60 facing down. And I-shaped reinforcing bar lattice unit 5 which was temporarily assembled first
6 in place, and the cross-shaped beam reinforcing bar unit is completed.

As is clear from the above, according to the method of the present invention, a reinforcing bar unit having a complicated cross-beam shape, such as a cross shape, a square shape, or a square shape, can be produced relatively easily. It goes without saying that the present invention is not limited to the above embodiments, but includes various modifications, applications, modifications, and additional examples. For example, in the description of the embodiments, only stirrup reinforcements have been taken up, but it is also possible to apply to hoop reinforcements, and it is also possible to arrange various splint reinforcements at the same time as abdominal reinforcing bars.

[0018]

Effects of the Invention As is clear from the above explanation, in the present invention, at least two reinforcing bar lattice units are
It is possible to incorporate it into the main reinforcing bar group all at once. Therefore, the reinforcement work is simplified and labor-saving, and productivity is dramatically improved, which is an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an installation for carrying out a method according to a first embodiment of the invention.

FIG. 2 is a perspective view of a wide reinforcing bar lattice unit used in the method of the embodiment.

FIG. 3 is a perspective view of a narrow reinforcing bar lattice unit used in the method of the embodiment.

FIG. 4 is a perspective view of a main reinforcing bar used in the method of the same embodiment.

FIG. 5 is a perspective view of the wide reinforcing bar lattice unit of FIG. 2, with its ends bent.

6 is a perspective view showing the wide reinforcing bar lattice unit of FIG. 2 in a state where the other end is bent; FIG.

7 is a perspective view of the wide reinforcing bar lattice unit shown in FIG. 2, with the central portion thereof bent; FIG.

8 is a perspective view showing a state in which the other central portion of the wide reinforcing bar lattice unit of FIG. 2 is bent to form a U-shaped reinforcing bar lattice unit.

FIG. 9 is a perspective view of the narrow reinforcing bar lattice unit of FIG. 3, with its ends bent.

10 is a perspective view showing a state in which the other end of the narrow reinforcing bar lattice unit of FIG. 3 is bent to form an I-shaped reinforcing bar lattice unit.

FIG. 11 is a perspective view showing the arrangement of the main reinforcing bars in FIG. 4;

12 is a perspective view showing a state in which the U-shaped reinforcing bar lattice unit shown in FIG. 8 is combined with the arrangement of main reinforcing bars shown in FIG. 11;

13 is a perspective view showing a state in which the I-shaped reinforcing bar lattice unit in FIG. 10 is further combined with the state in FIG. 12 to produce a reinforcing bar unit.

FIG. 14 is a perspective view showing a cross-shaped reinforcing bar unit manufactured by a method according to a second embodiment of the present invention.

FIG. 15 is a perspective view of a U-shaped reinforcing bar lattice unit used in the same embodiment.

FIG. 16 is a perspective view of an I-shaped reinforcing bar lattice unit used in the same embodiment.

17 is a perspective view showing a state in which the U-shaped reinforcing bar lattice unit of FIG. 15 is combined with lower main reinforcing bars; FIG.

18 is a perspective view showing a state in which two of the states shown in FIG. 17 are combined; FIG.

19 is a perspective view showing a state in which the I-shaped reinforcing bar lattice unit of FIG. 16 is combined with upper main reinforcing bars; FIG.

20 is a perspective view showing a state in which the state in FIG. 18 and the state in FIG. 19 are combined; FIG.

[Explanation of symbols]

20 lattice unit stockyard 22 wide reinforcing bar lattice unit 24 narrow reinforcing bar lattice unit 26 main reinforcing bar stockyard 28 main reinforcing bar 30 first reinforcing bar 32 second reinforcing bar 34 first reinforcing bar 36 second reinforcing bar 38 lattice unit supply device 40 Lattice unit bending device 42 Lattice unit bending and positioning device 44 Main reinforcing bar placement device 46 Main reinforcing bar position holding device 48 Beam reinforcing bar unit production area 50 Upper main reinforcing bar group 52 Lower main reinforcing bar group 54 U-shaped reinforcing bar lattice unit 56 I-shaped reinforcing bar lattice Unit 58 Hook 60 Hook 62 Rebar unit 64 Binding device 66 Belly reinforcing bar (stirrup bar) 68 Interval 70 Interval

Claims (1)

[Claims] 1. At least two reinforcing bars comprising a plurality of first reinforcing bars arranged substantially in parallel, and at least one second reinforcing bar intersecting the first reinforcing bars and coupled to each first reinforcing bar. Manufacturing of a reinforcing bar unit having belly reinforcing bars, characterized in that two reinforcing bar lattice units are connected around a main reinforcing bar group arranged substantially in parallel so that the first reinforcing bars serve as belly reinforcing bars of the main reinforcing bar group. Method.