JPH0960300A - Jig for bar arrangement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the bar arrangement work by providing multiple arms vertically displaceable against a stanchion on the stanchion erected on a support base, and temporarily holding reinforcing bars. SOLUTION: A nearly T-shaped holding piece 12 holding and erecting a stanchion 2 is provided on one side of a square support base 1 made of a metal material, and a hook section 13 and a pair of horizontal grooves 14 are formed on the holding piece 12. A pair of coupling knobs 22 screwed to the coupling section 21 of the stanchion 2 made of a long angular steel are inserted into the horizontal grooves 14 provided at the hook section 13 of the support base 1. Multiple arms 3 each provided with a slender hold section 31 temporarily holding reinforcing bars on the upper side face and a drop preventing projection 32 preventing the reinforcing bars from being slipped off the tip of the hold section 31 are fitted to the stanchion 2, and a jig for bar arrangement constituted of the stanchion 2 and the arms 3 is molded. The bar arrangement work is efficiently conducted, and the work time can be shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to the construction of reinforced concrete buildings, and more particularly to a jig used for arranging reinforcing bars.

[0002]

2. Description of the Related Art Conventionally, the bar arrangement in the construction of a reinforced concrete building has been performed manually by an operator. In other words, taking a wall arrangement as an example, when a horizontal bar is erected on a vertical bar that has been erected at a predetermined interval, first, the operator must position the horizontal bar at a predetermined pitch each time with a choke or the like. The vertical streaks were marked on each occasion, and then at least two workers temporarily held the horizontal streaks at the marked positions and used the binding line to bind the horizontal streaks to the vertical streaks.

[0003]

However, as described above, when the rebar is manually arranged by the worker, the rebar work takes time, the productivity is not improved, and a large number of workers are required. However, there is a problem that the cost is high. Furthermore, when a horizontal bar is erected, the operator marks the vertical bar each time when positioning for erection, so there is often a case where the marked pitch is misaligned, and There is a problem that dimensional variations are likely to occur in the bar arrangement depending on the skill level.

An object of the present invention is to efficiently arrange the bar even with a small number of workers, and to realize a bar arrangement jig which does not have a dimensional variation and is stable without requiring the skill of the operator. To provide.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 arranges a plurality of arms 3 for temporarily holding reinforcing bars on a supporting column 2 erected on a supporting base 1 to arrange a bar. It was used as a jig.

Further, according to the second aspect of the invention, the position of the arm 3 can be vertically changed with respect to the support column 2.

Further, the invention according to claim 3 is the arm 3
However, the column 2 is movable with respect to the support base 1 so that the position can be changed between the position for temporarily holding the reinforcing bar and the position for releasing the holding of the reinforcing bar.

[0008]

According to the invention of claim 1, since the reinforcing bar can be temporarily held by using a jig in the bar arrangement, a small number of workers, for example, one person can easily perform the bar arrangement work. Further, since the work of the bar arrangement can be efficiently performed by using the jig, the work time can be shortened and the productivity can be improved.

Moreover, since the positioning for erection of the reinforcing bar during the temporary holding is determined in advance by the arm 3, it is possible to realize a dimensionally stable bar arrangement without variation, regardless of the skill of the operator.

According to the second aspect of the present invention, since the arm 3 can be vertically moved with respect to the column 2, the bar can be arranged at a desired pitch interval according to the site.

According to the third aspect of the invention, the plurality of arms 3 are provided.
Since it is possible to move the support column 2 with the support 2 with respect to the support base 1, the temporary holding can be released at once after binding, and the reinforcing work can be completed simply.

[0012]

1 is a perspective view of a jig for bar arrangement according to the present invention, in which a part thereof is omitted, and 1 is a support base.
The column 2 is erected from one side to the upper side, and the column 2 is provided with a large number of arms 3 for temporarily holding reinforcing bars in the horizontal direction at predetermined intervals.

The support base 1 is a thick plate made of a metal material and having a quadrangular shape in plan view. Each quadrangular corner portion is provided with a screwing hole to which a screw 11 is screwed. By allowing the screws 11 to project downward of the support base 1 and adjusting their positions, for example, even when the base muscle is laid on the installation ground, the installation can be performed without rattling.

A holding piece 12 having a substantially T-shaped cross-section is formed on one side of the support base 1 to hold and stand the supporting pillar 2, and the holding piece 12 extends upward from the holding piece 12 and the supporting pillar 2 is formed. A piece opposite to is used as a locking portion 13, and a pair of lateral grooves 14 are provided in the locking portion 13 so that a shaft 22a of an engaging knob 22 provided on the support 2 described later can be inserted and fitted. The lower end of the locking portion 13 is grounded so that it can be installed without rattling in cooperation with the four screws 11.

The pillar 2 is made of a long rectangular steel, and as shown in FIG. 2, a position adjusting hole 20 for positioning the arm 3 described later at a predetermined pitch interval over the entire length thereof.
And an engaging portion 21 made of a substantially rectangular thin plate facing the engaging portion 13 is provided at the lower end thereof, and the engaging portion 21 is provided with a pair of positions at positions corresponding to the lateral grooves 14. The screwing holes are provided, and the engaging knobs 22 that are inserted into the lateral grooves 14 and engage with each other are screwed. That is, the pillar 2
3, the shaft 22a of the pair of engaging knobs 22 screwed to the engaging portion 21 is screwed into the pair of lateral grooves 14 formed in the engaging portion 13, as shown in FIG. After the insertion, the engaging knob 22 is screwed. Further, as shown in FIG. 4, an abutment piece 15 of the engaging portion 21 is provided at one side edge of the engaging portion 13 on the opposite side of the lateral groove 14 so that the shaft 22a of the engaging knob 22 is attached to the lateral groove. The vertical position of the column 2 may be fixed such that the side edge of the engaging portion 21 abuts on the abutting piece 15 when the post 2 is inserted and fitted. In this case, only one lateral groove 14 and one engaging knob 22 may be provided to simplify the work. Further, an engaging projection and an engaging step portion are provided on either one of the back surface 13a of the locking portion 13 and the back surface 21b of the engaging portion 21, so that the upright position of the support column 2 can be further ensured. It may be fixed.

With this structure, the support 2 is attached to the support 1
The arm 3, which will be described later, is movable so that the arm 3 can be moved between a position for temporarily holding the reinforcing bar and a position for releasing the holding of the reinforcing bar.

In this embodiment, the pillar 2 is erected so that the front surface 21a of the engaging portion 21 abuts on the back surface 13a of the engaging portion 13, but, conversely, the supporting pillar 2 is engaged. The strut 2 may be erected so that the arm 3 faces outward with respect to the support 1 by contacting the engaging portion 21a with the surface 13b of the portion 13.

The arm 3 is made of a metal material,
A long and thin holding part 31 for temporarily holding the reinforcing bar on the upper side surface, and a holding part 31 for holding the reinforcing bar at the tip of the holding part 31.
While a drop prevention protrusion 32 is provided to prevent slipping from the tip end of the
An insertion portion 33 through which the arm 3 is inserted is formed on the pillar 2. The insertion portion 33 has a rectangular tube shape having an inner surface facing the outer peripheral surface of the support column 2, and as shown in FIG.
3 is provided with a screwing portion 34 for screwing a thumbscrew on the side surface on the opposite side of the holding portion 31.
5 is screwed on and the tip end thereof is engaged with one of the position adjusting holes 20 by screwing of the thumbscrew 35,
The arm 3 is fixed to the column 2. Therefore, the operator can change the position of the arm 3 in the vertical direction with respect to the support column 2 only by screwing and loosening the thumbscrew 33, and the support column 2 has the position adjusting hole 2
Since 0 is provided at a predetermined pitch interval, the position of the arm 3 can be changed at a desired pitch interval according to the site.

Next, a method of using the reinforcing bar jig of the present invention will be described.

FIG. 5 shows an example in which the reinforcing bar jig of the present invention is used when the horizontal bar X is erected on the vertical bar Y which is erected at a predetermined interval in the bar bar. A pair of jigs for bar arrangement having arms 3 having a predetermined pitch interval are installed at both ends of the provided vertical bar Y, and a horizontal bar X is provided on the upper surface of the holding portion 31 of the arm 3 of each jig. By arranging two of them, the horizontal stripes X are temporarily held between the vertical stripes Y.
The horizontal muscle X temporarily held in this manner is fixed to the vertical muscle Y by binding the intersection of the horizontal muscle X and the vertical muscle Y with the binding line C, and then the engaging knob 22 is loosened. By pulling out the shaft of the engaging knob 22 from the lateral groove 14 and moving the support column 2 with respect to the support base 1, the temporary holding of the reinforcing bar is released at a time, and the reinforcing bar work is simply completed.

As described above, when the bar arrangement jig of the present invention is used for the bar arrangement work, even a small number of workers, for example, one person can easily perform the bar arrangement work, and the work can be efficiently arranged. Since it can be streaked, work time can be shortened and productivity can be improved.

Moreover, the positioning of the reinforcing bar during temporary holding is
Since it can be determined in advance by the arm 3, dimensionally stable bar arrangement without variation can be realized regardless of the skill level of the operator.

In this embodiment, the case where the horizontal bar is arranged in the vertical bar has been described, but the horizontal bar of the bar arrangement jig of the present invention is
It is preferably used not only for horizontal reinforcing bars but also for horizontal reinforcing bars such as stirrups.

[0024]

[Brief description of drawings]

FIG. 1 is a partially omitted perspective view of a reinforcing bar jig.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a partially enlarged perspective view of a reinforcing bar jig.

FIG. 4 is a partially enlarged perspective view showing another embodiment.

FIG. 5 is a view showing a usage example of a reinforcing bar jig.

[Explanation of symbols]

 1 Support 2 Support 3 Arm

Claims (3)

[Claims] 1. A reinforcing bar jig comprising a plurality of arms (3) for temporarily holding reinforcing bars provided on columns (2) standing on a support base (1). 2. The jig for rebar arrangement according to claim 1, wherein the arm (3) can be vertically moved relative to the support column (2). 3. The column (2) is movable with respect to the support base (1) so that the arm (3) can be moved between a position for temporarily holding the reinforcing bar and a position for releasing the holding of the reinforcing bar. The bar arrangement jig according to claim 1 or 2.