JPH0249315Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention makes it possible to easily move a joining tool such as a crimper of a mechanical joint used for joining column reinforcing bars to any position on the outer periphery of assembled column reinforcing bars. This article relates to a hanging tool for reinforcing bar joining tools.

(Prior art) For joining column reinforcing bars in reinforced concrete columns, a mechanical and physical joining method is used in which mechanical joint members such as joint sleeves are fixed using joining tools such as crimpers and tighteners. There are many examples. This type of welding tool is heavy, so two workers
The joining work is carried out by people. In normal column reinforcing joints, it is necessary to connect at least 4 to 12 locations per column, so it is a heavy burden for workers to continuously perform the joining work while holding tools in their hands. Conventionally, therefore, the welding tool is placed on a holding stand, or the hook at the upper end of the rope is hung from a hoop on a post, and the tool is held in the hand only during welding.

(Problem that the invention aims to solve) When connecting column reinforcing bars, for structural reasons, they are not joined sequentially from the ends, but the first and second joint positions are always aligned on a plane. Since welding must be performed while moving to diagonal positions, it is desired that the welding tool be moved freely with simple operations. However, in the first conventional example that uses a holding stand, it takes time and effort to move the holding stand, and in the second conventional example that suspends it using a rope, it is necessary to attach and remove the hook each time it is moved. Even the above example cannot satisfy the above requirements.

The purpose of the present invention is to enable the joining tool to be easily and freely moved to any position around the assembled column reinforcing bars.

(Means for solving the problem) The lifting holder of the reinforcing bar joining tool of the present invention is
The hanger rail 1 is provided with a hanger rail 1 having a shape surrounding the outer periphery, for example, circular or rectangular. The hanger rail 1 is provided with hanging and fixing means 5 and 7 for horizontally suspending and fixing the hanger rail to the assembly column reinforcement P. A joining tool 14 is attached to the hanger rail 1.
A tool support 9 that supports the tool hangs down, and a running portion 9a provided at one end of the support is movable along the hanger rail, and supports the welding tool at the other end.

(Function) The hanger rail 1 set so as to surround the outer periphery of the assembled column reinforcing bar P is hoisted and fixed horizontally to the assembled column reinforcing bar by the lifting and fixing means 5 and 7, and in this state, the joining tool 14 is attached to the surrounding of the assembled column reinforcing bar. When the hanger rail 1 is moved, the running portion 9a of the support body 9 runs on the hanger rail 1. This traveling allows the joining tool 14 to move to any position on the outer periphery of the assembled column reinforcing bar P.

(Example) Examples of the present invention will be described below with reference to the drawings.

In Figures 1 and 2, the hanger rail 1 in the hanging fixture is formed into a circular shape by a pipe, and the inner diameter of the rail is long enough to surround the outer periphery of the assembly column reinforcing bar P (Figure 5). Furthermore, a guide groove 1a is provided at the lower central portion of the pipe all around the pipe, reaching into the pipe. The hanger rail 1 is a combination of two semicircular rail bodies, and the abutting portions of the ends of both rail bodies are separably connected by a connecting means consisting of a connecting plate 2 and a hook 3. As shown in Fig. 1, the connecting plate 2 is attached to one rail body with a pin 4 at the rear end as the center of rotation, and a latching groove 2a provided at the tip protrudes from the outside of the other rail body. It can be hung on the hook 3.

Further, hangers 5 are attached to four locations on the upper peripheral surface of the hanger rail 1 at equal intervals, and these hangers suspend the hanger rail 1 horizontally.
Each hanger 5 is equipped with a turnbuckle 5a, allowing the horizontal height of the hanger rail 1 to be adjusted. A support plate 5b provided at the lower end of the hanger 5 is attached to a mounting plate 5c fixed to the upper part of the hanger rail 1 with a support pin 6 as the center of rotation. A hook 5d is formed at the upper end of the hanger 5, and the base side of this hook is bent into a ``H'' shape.

Furthermore, a mounting plate 5 is provided on the inner peripheral surface of the hanger rail 1.
A steady plate 7 is installed in a horizontal state to be paired with c, and this steady plate and the mounting plate are perpendicular to each other. One end of the steady plate 7 (right side in Figure 2) is fixed to a support pin 8 on a steady plate 7a fixed to the hanger rail 1, and this pin moves horizontally _within a long hole 7a1 provided in the board. possible, and for this reason the steady plate 7
The length can be adjusted. The other end of the steady plate 7 is provided with a planar semi-circular contact plate 7b, which is brought into contact with the outer peripheral surface of the corner column reinforcing bar Pa (FIG. 5) of the assembled column reinforcing bar P.

In addition, as shown in Figures 3 and 4, the hanger rail 1
A hanging plate 9 that runs along this rail hangs down from the rail. A running portion 9a at the upper end of the hanging plate 9 is positioned so as to be able to run freely within the pipe constituting the hanger rail 1, and a lower end thereof hangs downward from the guide groove 1a of the pipe. The upper end of the hanging plate 9 is cross-shaped, and a guide roller 11 is supported by a shaft 12 in the center of the bearing plate 10 to ensure stable running of the hanging plate. Other bearing plates 10 arranged on both sides of the bearing plate
Guide rollers 11a and 11a are installed horizontally between a and 10a via shafts 12a and 12a, respectively, to prevent horizontal vibration of the hanging plate 9, and each of the rollers 11 and 11a slides inside the pipe. It is free. A latching hole 9b is provided at the lower end of the hanging plate 9, and the upper end of the support member 13 is latched to this hole.
A crimping tool 14, which is a joining tool, is suspended from the lower end of the support member (FIG. 5).

Next, how to use it will be explained.

After inserting the running portions 9a of the hanging plates 9 in the number corresponding to the number of crimping tools 14 to be used into the pipes of one or both rail bodies of the divided hanger rail 1, each rail body is attached to the assembly column reinforcing bars. Encircle from the outside of P,
The abutting parts of the rail body are connected by hooking the connecting plate 2 to the hook 3 to assemble it into a ring-shaped hanger rail. Then, as shown in FIG. 5, after lifting the rail 1 to a predetermined height, each hanger 5 is opposed to the corner column reinforcing bar Pa, each hook 5d is hooked to the column reinforcing bar, and the turnbuckle 5a is
Adjust the horizontal height of the hanger rail 1 by turning appropriately. In parallel with this adjustment work, the length of the steady rest plate is adjusted while applying the stop plate 7b of the steady rest plate 7 to the column reinforcement Pa at the corner. Thereafter, a crimping tool 14 is attached to the lower end of the support member 13 hanging down from the rail 1, and the support member 13 is suspended from the rail. Then, the joint sleeve S is moved from the lower column reinforcing bar Pb side between the butt parts of the first column reinforcing bars Pa and Pb (Fig. 5), and then the crimping tool is removed from the hanging plate 9, and the crimping tool is moved by the worker. hold it and crimp the sleeve S to join the first reinforcing bars. After joining, the crimping tool 14 is suspended from the hanging plate 9, and moved to the second reinforcing bar in the suspended state, where the sleeve of the lower reinforcing bar is raised to the abutting part, and joining is performed in the same manner as above. The same procedure is used for joining reinforcing bars of the 3rd place and below. The position of the crimping tool 14 is moved along the hanger rail 1, and with this movement, the hanging plate 9 is pulled, and the rollers 11 and 11a slide within the rail pipe.

In the above example, as shown in FIG. 5, the base of the hook 5d of the hanger 5 is bent toward the column reinforcing bar, and the steady plate 7 is provided horizontally, so that when the crimping tool 14 is hung, It is possible to convert the stress in the direction into tensile force (b) and compressive force (c), which applies horizontal force to the column reinforcement, and minimizes the vertical force applied to the hoop. It is sufficient to hold the hoop in place by just tying it with the hoop, and there is no need to weld the hoop. Note that lateral force will be applied to the column reinforcing bars, but since column reinforcing bars are generally thick and have a high strength, no problem will occur even if stress is applied to the reinforcing bars.

Furthermore, in the above example, the hanger 5 and the steady plate 7 are both pin-joined to the rail 1 by the support pins 6 and 8, so the angles of the hanger and the steady plate can be adjusted freely, and the crimping tool 14 can be suspended. When lowered, both sides are automatically adjusted to a stable angle.

Furthermore, since the hanger rail 1 is separable, it is easy to set the hanger rail to the assembly column reinforcing bar P, and it is convenient to transport and store.

When the hanger rail is a combination of semicircular rail bodies, one end of both rail bodies is connected by a hinge 15 as shown in FIG. You can also connect with

Of course, it is not essential that the hanger rail 1 be disassembled as shown in each of the above examples.

Note that the steady plate may be provided horizontally on the hanger depending on the configuration of the hanger, and does not necessarily need to be provided on the hanger rail.

In the above example, the hanger rail is constructed of a pipe so that the running section 9a can move therein, but it is not limited to a pipe as long as the running section can move.

Although the guide groove 1a provided in the hanger rail is provided at the lower inner diameter side position in the above example, it may be provided at an appropriate position of the hanger rail according to the shapes of the tool support 9 and the running portion 9a.

(Effects of the invention) According to the invention, the joining tool can be easily and freely moved to any position around the column, speeding up the joining work, and moreover, multiple joining tools can be operated simultaneously by one worker or The joining work can be performed by multiple workers, and the work time can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts, and is an enlarged view of the connection means, FIG. 2 is an enlarged sectional view taken along the line of FIG. 1, and FIG. 3 is an enlarged front view showing how the hanging plate is attached. 4 is a sectional view taken along the line of FIG. 3, FIG. 5 is a front view showing how the hanger rail is used, and FIG. 6 is a plan view of another embodiment of the hanger rail. DESCRIPTION OF SYMBOLS 1... Hanger rail, 5, 7... Hanging and fixing means, 9... Tool support, 9a... Running part, 14...
…Joining tool, P…Assembling column reinforcement.

Claims (1)

[Scope of Claim for Utility Model Registration] A hanger rail having a shape surrounding an assembly column reinforcing bar, a hanging and fixing means for horizontally suspending and fixing the hanger rail to the assembly column reinforcing bar, and a running section provided at one end of the above A hanging tool for a reinforcing bar joining tool that can freely run on a hanger rail and includes a tool support for suspending the reinforcing bar joining tool at the other end outside the hanger rail.