JP7198472B2 - Interference prevention member for reinforcing bar construction and interference prevention method for reinforcing bar construction - Google Patents

Description

TECHNICAL FIELD The present invention relates to an interference prevention technique for reinforcing bar construction for eliminating interference between a column reinforcing bar and a pre-assembled material in reinforcing bar construction in which the pre-assembled material is incorporated into the column reinforcing bar.

Interference between column reinforcing bars and pre-assembled materials has long been a problem in reinforcing bar construction in which pre-assembled materials are incorporated into column reinforcing bars. Specifically, in order to lower the pre-assembled material to a place where there are multiple column rebars, the pre-assembled material rides on the column rebar, and it is necessary to deal with the interfering parts, and at that time In addition, if the load of the crane operation is not properly controlled, the pre-assembled material will fall when the interference is resolved, which may cause an accident such as being caught. In order to eliminate interference, there was a current situation of kicking and hitting. In addition, it took about 20 minutes from the time the crane lifted the work.

On the other hand, Patent Literature 1 discloses an interference prevention technique for reinforcing bar construction for eliminating the interference between the column reinforcing bar and the pre-assembled material in the reinforcing bar construction in which the pre-assembled material is incorporated into the column reinforcing bar.
Patent Literature 1 discloses the one illustrated in FIG. 1 as a first embodiment. Specifically, the cap 24 of the guide member 10 is detachably attached in advance to the upper end portion of the column main reinforcement 12 . A long guide rod 26 protruding from the upper end of the cap 24 is inserted through a predetermined position of the beam assembly reinforcing bar 14 . After that, by lowering the beam assembly reinforcement 14, the assembly of the column main reinforcement 12 and the beam assembly reinforcement 14 is automatically completed.

Similarly, Patent Document 1 discloses a second embodiment shown in FIG. Specifically, the guide rod 26 of the guide member 10 is inserted through a predetermined position of the beam-assembling reinforcing bar 14 in advance, and then locked to the mounting plate 32 placed on the upper surface of the beam-assembling reinforcing bar 14 . On the other hand, the cap 24 provided at the lower end of the guide rod 26 is kept in a state of protruding downward from the lower end of the beam assembly reinforcing bar 14 , and when the beam assembly reinforcing bar 14 comes close to the column main reinforcing bar 12 , the cap 24 is removed from the column. It is attached to the main reinforcement 12 . After attaching the cap 24 to the column main reinforcement 12 in this manner, the beam assembly reinforcement 14 can be incorporated by lowering the beam assembly reinforcement 14 in the same manner as in the first embodiment.

Japanese Patent Application Laid-Open No. 4-347263 (Patent No. 2822692)

The inventors of the present application conducted intensive tests and research in order to further evolve the conventional technology disclosed in Patent Document 1, and found that a column reinforcing bar (equivalent to the column main reinforcing bar 12 of Patent Document 1) was used as a pre-assembled material (beam of Patent Document 1). (equivalent to the assembled reinforcing bars 14)) has been completed.

A first invention of the present invention is an interference prevention member for reinforcing bar construction for eliminating interference between a column reinforcing bar and a pre-assembled member in reinforcing bar construction in which the pre-assembled member is incorporated into the column reinforcing bar, and is inserted into the tip of the column reinforcing bar. It is characterized by comprising a tubular tubular body, and a main body which bundles a plurality of tubular bodies so as to be vertically movable and which is set at an interference portion of a pre-assembled member into which a column reinforcing bar is inserted.
A second aspect of the invention is the interference preventing member for reinforcing bar construction, characterized in that the main body is provided with an attachment portion to which a wire can be attached.
A third invention is an interference prevention method for reinforcing bar construction for eliminating interference between the column reinforcing bar and the pre-assembled material in the reinforcing bar construction in which the pre-assembled material is incorporated into the column reinforcing bar, wherein the interference of the pre-assembled material into which the column reinforcing bar sticks. A main body that bundles multiple tubular bodies in a vertically movable manner is set in advance, and at the stage of assembling the pre-assembled materials into the column reinforcing bars, the tubular tubular bodies are inserted into the column reinforcing bars, respectively, so that the column reinforcing bars and the front end are assembled. It is characterized by eliminating the interference with the material.

The present invention described above has the following effects.
(1) There is no interference between the pre-assembled material and the column reinforcement.
(2) Since there is no interference between the pre-assembled materials and the column reinforcing bars, the number of accidents involving workers being caught is reduced.
(3) The working time is reduced to less than half of that when not in use, and even a beginner can work.
(4) The number of workers can be reduced. For example, 1 sling operator, 1 crane operator, and 2 craftsmen can work.

Explanatory drawing explaining the prior art (1st Example disclosed by patent document 1). Explanatory drawing explaining the prior art (2nd Example disclosed by patent document 1). BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing (1) explaining the interference prevention member for reinforcement construction which concerns on this invention. Explanatory drawing (2) explaining the interference prevention member for reinforcement construction which concerns on this invention. Explanatory drawing (3) explaining the interference prevention member for reinforcement construction which concerns on this invention. Explanatory drawing (4) explaining the interference prevention member for reinforcement construction which concerns on this invention.

Embodiments of the present invention will be described based on the drawings.
FIG. 3 is an explanatory diagram illustrating the structure of the interference preventing member for reinforcing bar construction according to the present invention.
As shown in the figure, the interference prevention member 1 for reinforcing bar construction includes a tubular body 2 and a main body 5 .
The tubular body 2 has a cylindrical shape, and has an opening at the front end so that it can be inserted into a column reinforcing bar, and a flange part 3 with an enlarged diameter so that it can be connected to the main body 5 at the rear end. Drain holes 4 are formed in the flange portion 3 .

The main body 5 is a frame so that a plurality of tubular bodies 2 can be bundled, and has a connecting hole 6 through which the tubular bodies 2 are inserted. By inserting each tubular body 2 through the connecting hole 6 , each tubular body 2 can freely move up and down within the connecting hole 6 . The connecting hole 6 may be a single hole (round hole) or an elongated hole.
Further, the main body 5 is provided with an attachment portion 7 to which a wire 8 can be attached.

FIG. 4 is an explanatory view showing a state in which the tubular body 2 is combined with the main body 5 (=interference prevention member 1 for reinforcing bar construction).
In this state, the main body 5 (not shown) is set in the interference area of the pre-assembled material into which the column rebar is inserted in the pre-assembly stage of the pre-assembled material to the column rebar. Then, at the stage of assembling the pre-assembled material into the column reinforcing bar, the cylindrical tubular bodies are inserted into the column reinforcing bar. FIG. 5 illustrates a state in which the tubular bodies 2 are inserted into the column reinforcing bars 9, respectively. When inserting the tubular body 2 into the column reinforcing bar 9, it is easy to adjust the position of the tubular body 2 if the connecting hole 6 of the main body 5 is an elongated hole.

FIG. 6 illustrates a state in which the wire 8 attached to the main body 5 is used to carry the interference preventing member 1 for reinforcing bar construction by a crane. In this way, since the interference preventing member 1 for reinforcing bar construction can be carried by a crane, the work of assembling the pre-assembled material into the column reinforcing bar is completed, and the interference preventing member 1 for reinforcing bar construction removed from the pre-assembled material is placed again on the ground. The work of transporting to the slinging craftsman is extremely easy, and the work efficiency is improved.

INDUSTRIAL APPLICABILITY The present invention can be widely used as an interference prevention technique for reinforcing bar construction for eliminating interference between a column reinforcing bar and a pre-assembled member in a reinforcing bar construction in which a pre-assembled member is incorporated into a column reinforcing bar.

1: Interference prevention member for reinforcement work 2: Pipe body 3: Flange part 4: Drain hole 5: Main body 6: Connection hole 7: Mounting part 8: Wire 9: Column reinforcing bar

Claims (3)

An interference prevention member for reinforcing bar construction for eliminating interference between the column reinforcing bar and the pre-assembled material in the reinforcing bar construction in which the pre-assembled material is incorporated into the column reinforcing bar,
A cylindrical tubular body inserted into the tip of the column reinforcing bar,
a main body for bundling a plurality of tubular bodies so as to be vertically movable and set in an interference region of the pre-assembled material into which the column reinforcing bar is inserted in the pre-stage of incorporating the pre-assembled material into the column reinforcing bar;
with
The tubular body has an opening at its tip so that it can be inserted into the column reinforcing bar, and has a flange portion with a diameter expanded so that the rear end can be connected to the main body,
The main body is a frame so that a plurality of tubular bodies can be bundled, and has a connecting hole through which the tubular bodies are inserted. An interference prevention member for reinforcing bar construction, characterized by : 2. The interference preventing member for reinforcement work according to claim 1, wherein the main body is provided with a mounting portion to which a wire can be mounted. An interference prevention method for reinforcing bar construction for eliminating interference between column reinforcing bars and pre-assembled materials in reinforcing bar construction in which pre-assembled materials are incorporated into column reinforcing bars,
At the stage prior to incorporating the pre-assembled materials into the column reinforcing bars, a main body that bundles a plurality of tubular bodies so as to be vertically movable is set in advance in the interference area of the pre-assembled materials where the column reinforcing bars are inserted,
The tubular body has an opening at its tip so that it can be inserted into the column reinforcing bar, and has a flange portion with an enlarged diameter so that the rear end can be connected to the main body. It has a connecting hole through which the tubular body is inserted, and the connecting hole forms a single hole in the center of the frame and long holes on the left and right sides of the single hole while incorporating the pre-assembled material into the column reinforcement. By inserting each tubular body into the column rebar in stages,
An interference prevention method for reinforcing bar construction, characterized in that interference between a column reinforcing bar and a pre-assembled material can be eliminated.

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