JPH0348967Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial field of application" This invention relates to the provision of a large-diameter reinforcing bar receiving bracket for horizontal reinforcement on a rising part of a wall, etc.

"Prior Art" In the work of assembling reinforcing bars for large-scale construction works such as nuclear power plants, the reinforcing bars have large diameters (D22 to D51) and have a very large weight per unit length. Therefore, it is extremely difficult to manually lift the horizontal bars of a rising portion of a wall or the like while tying them to the vertical bars.

Conventionally, the following two methods are commonly used for assembling and bundling large diameter reinforcing bars.

(1) Place brackets etc. on the temporary steel frame etc.
The horizontal reinforcement is placed and tied together manually.

(2) Strive to unitize and reduce reinforcement and bundling on site as much as possible.

In addition, the horizontal reinforcing bar bracket that locks onto the vertical reinforcing bars is
This is disclosed in Publication No. 56-8722, Japanese Utility Model Application Publication No. 58-52213, etc.

``Problems that the invention attempts to solve'' However, neither of the former methods is effective in reducing the labor required for reinforcing steel work, especially for arranging large-diameter reinforcing bars. There are problems such as decreased work efficiency and increased costs. In addition, the latter method has the disadvantage that once the reinforcing bars are temporarily held and tied, they cannot be removed and become consumable items.

``Means for solving problems'' and ``effects'' This proposal was made in view of the circumstances described above, and its gist is that it is necessary to install a horizontal reinforcement support temporarily in a predetermined position, and a vertical reinforcement in the center. A post of a predetermined length is integrally erected at the center of the saddle part to be assembled on the horizontal reinforcement, and a catch having a weir wall part and a floor part that slopes downward toward the vertical reinforcement is provided at the upper end of the support, On the other hand, the base of the rotary arm for vertical reinforcement restraint is pivotally fixed in the middle of the column by means of fall prevention locking means, and furthermore, the rotary arm is rotated by entering and retreating from the rotation locus of the rotary arm. It is equipped with a locking means to block and allow, and before tying large diameter reinforcing bars to the vertical bars, attach metal fittings to the vertical bars and the horizontal bars that have already been installed in order to temporarily leave the horizontal bars (same as the reinforcement position). By doing so, it is possible to reduce the labor involved in tying reinforcing bars and improve work efficiency, thereby reducing costs compared to conventional work methods.

"Example" Hereinafter, this will be described in detail based on example diagrams.

Figures 1 a, b, c, and d are a side view of a receiver according to an embodiment of the present invention in a state of use and assembly, a detailed view of one component, a front end view, and a view taken along arrow A-A in figure a. In the figure, numerals 1 and 2 are vertical reinforcements at the rising portion and horizontal reinforcements that have already been tied at a predetermined position, and numeral 3 is a horizontal reinforcement that must be placed above the horizontal reinforcement 2 at a predetermined distance.

This product temporarily supports the horizontal reinforcement 3 in a predetermined position, and a post 5 of a predetermined length (the distance between the upper and lower horizontal reinforcements) is integrated in the center of the saddle part 4 that is assembled on the horizontal reinforcement 2 with the vertical reinforcement 1 inside. A receiving seat 8 having a weir wall portion 6 and a floor portion 7 that slopes downward toward the longitudinal strip 1 is provided at the upper end of the pillar 5.

The longitudinal stripes 1 exist on the back side of the saddle part 4 and interfere with each other, so a notch is naturally made, but there may also be a knot for the binding wire on the front side, so in order to avoid such interference, a notch 9 is provided as shown in the figure. Saddle part 4 as much as possible
Make sure that it adheres closely to the horizontal stripes 2.

In addition, the floor portion 7 of the catch seat 8 is designed to have dimensions that can accommodate the horizontal reinforcement 3 with plenty of room, as shown in Figure a.
Further, it is preferable that the weir wall portion 6 be inclined outward to provide guiding ability.

The base of a rotary arm 10 for holding the vertical reinforcement 1 is pivotally fixed in the middle of the column 5 by means of fall prevention locking means, that is, a stopper 11 in the illustrated example.

Thus, when the saddle portion 4 is placed over the horizontal reinforcement 2 and the rotating arm 10 is rotated to hold the vertical reinforcement 1, the column 5 having the seat 8 at the upper end is temporarily fixed.

However, since it is not locked and stable, the locking mechanism that fixes the rotating arm 10 in the longitudinal bar 1 restraining posture, that is, the locking mechanism that enters and retreats from the arm rotation trajectory, prevents or allows rotation. Apply a locking means to

In the illustrated example, a lock pin 13 is swingably pivoted to a bracket 12 welded to the support column 5 and the floor 7, and acts on the base end of the rotating arm 10 in the posture of holding the longitudinal strip 1 by entering. It is said to prevent backlash.

As described above, the present product temporarily supports the following horizontal reinforcement 3 by supporting the longitudinal reinforcement 1 and the horizontal reinforcement 2, which have already been reinforced and tied together.

By manufacturing the members from a strong material such as steel, even long reinforcing bars can be supported with a small number (for example, 2 to 3 points are sufficient for a 12 m bar).

With this product, when the lock is released and the vertical strip 1 is released from the rotation arm 10, the entire product can be rotated forward around the horizontal strip 2 and brought down, so it can be easily removed after binding the horizontal strip 3. I can do it.

At this time, since the floor portion 7 is inclined downward toward the vertical reinforcement 1 side, the bound horizontal reinforcement 3 does not interfere with the rotation.

Therefore, according to the present invention, the horizontal reinforcement to be arranged at a predetermined position can be temporarily supported by simply bringing it in and placing it there.

``Effects of the invention'' Due to the structure and operation described above, this invention produces the various effects listed below.

(1) It is possible to significantly reduce the labor involved in tying large-diameter horizontal bars during reinforcing bar assembly work for large-scale construction projects.

(2) Installation can be done in an extremely short time.

(3) The structure of the mounting bracket is simple, the manufacturing cost is low, and mass production is possible.

(4) There is no need for temporary steel frames or bracket work for assembly, making it possible to significantly reduce the cost of reinforcing steel work compared to conventional methods.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention, and FIGS. 1a, b,
Figures c and d are a side view of the receiver according to the present invention in a locked mode of use, a detailed design diagram of the lock pin, a front end view of figure a, and a view taken along the line A--A in figure a. Explanation of symbols, 1... Vertical strip, 2... Horizontal strip, 3... Horizontal strip, 4... Saddle part, 5... Support column, 6... Weir wall part, 7... Floor part, 8... Seat, 9 ...notch,
10... Rotating arm, 11... Stopper, 12
...Bracket, 13...Lock pin.

Claims (1)

[Scope of utility model registration request] A support of a predetermined length is integrally erected at the center of the saddle part that is assembled on the horizontal reinforcement with the vertical reinforcement inside, and the upper end of the support has a weir wall part and a floor part that slopes downward toward the vertical reinforcement. On the other hand, in the middle of the column, the base of the rotary arm for longitudinal reinforcement restraint is pivotally fixed by means of fall prevention locking means, and furthermore, the base of the rotary arm for longitudinal reinforcement restraint is pivotally fixed, and furthermore, the base of the rotary arm for restraining the vertical reinforcement is pivotally fixed, and the base of the rotary arm for restraining the vertical reinforcement is pivotally fixed. A large diameter reinforcing bar holder, characterized in that it is equipped with a locking means for preventing or allowing rotation.