JP2014167246A - Reinforcement binding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcement binding tool which is used to bind a plurality of reinforcements dispensing with firm fixation, which facilitates binding work, and which can reduce a work cost without the need for work performed by an expert.SOLUTION: A reinforcement binding tool includes a binding tool body 1 which is formed by bending one metal wire 11, and one set of a bolt 2 and a nut 3. In the binding tool body 1, the one metal wire 11 is preformed by being curved in an approximately U-shape, and both ends thereof are rounded to form insertion holes 12 and 12 into which the bolt 2 can be inserted.

Description

  The present invention relates to a reinforcing bar binding tool that binds and fixes a plurality of reinforcing bars that do not require strong fixing.

Conventionally, as a reinforcing bar binding tool for tightly binding the intersection of the first reinforcing bar and the second reinforcing bar, it is composed of one U bolt, a nut and a binding plate, and the binding plate is inserted through the male screw portions at both ends of the U bolt. A possible insertion hole is formed, and the U-bolt is a meat that can be bent in a direction substantially perpendicular to the bending direction of the U-shaped bent portion between the male screw portions at both ends and the U-shaped bent portion. The thing of the structure in which the thin plate-shaped part was formed is known (for example, patent document 1).
In addition, a set of thin annealed iron wires (numbered wires) are used for binding of reinforcing bar intersections and the like that do not require firm fixation.

JP 2008-2161 A

However, the above-mentioned number wire is inexpensive as a material cost, but it is a thin annealed iron wire that can be cut as soon as it is twisted. Also, there is a problem that if the tightening is too strong, it will break.
For this reason, there is a problem that binding by the numbered wires requires work by professionals and requires labor costs.

  The problem to be solved by the present invention is to bind a plurality of reinforcing bars that do not require firm fixation, and is easy to bind, and can reduce the work cost without requiring work by a professional. It is to provide a binding tool.

In order to solve the above-mentioned problem, the reinforcing bar binding tool according to claim 1 is composed of a binding tool body formed by bending one metal wire and a set of bolts and nuts.
The binding tool main body is characterized in that one metal wire is curved in advance in a substantially U shape, and both ends thereof are rounded to form insertion holes into which the bolts can be inserted.

Further, the reinforcing bar binding tool according to claim 2 is the reinforcing bar binding tool according to claim 1,
The insertion hole has two or more turns in a coil spring shape toward the outside.

Further, the reinforcing bar binding tool according to claim 3 is the reinforcing bar binding tool according to claim 2,
At least one of the insertion holes has a left-handed coil spring shape toward the outside.

Further, the reinforcing bar binding tool according to claim 4 is the reinforcing bar binding tool according to claim 2,
The one insertion hole has a left-handed coil spring shape facing outward, and the other insertion hole has a right-handed coil spring shape facing outward.

Moreover, the reinforcing bar binding tool according to claim 5 is the reinforcing bar binding tool according to claim 2 or 3,
The nut is rotated by contacting the nut main body having a diameter smaller than the inner diameter of the insertion hole and the inner surface of the end of the wire wound in the shape of the coil spring at a diameter larger than the outer periphery of the nut main body. A means having a flange having a stopper piece for blocking is provided.

Moreover, the reinforcing bar binding tool according to claim 6 is the reinforcing bar binding tool according to claim 2 or 3,
The nut is a substantially rectangular plate-shaped nut having a stopper piece that prevents rotation of the nut by contacting the inner surface of the tip end of the wire wound in the shape of the coil spring.

Moreover, the reinforcing bar binding tool according to claim 7 is the reinforcing bar binding tool according to any one of claims 1 to 6,
Reinforcing bar binding tool, wherein the nut press-fits the nut main body 31 into the insertion hole, or is fixed to the binding tool main body by welding, an adhesive, or the like

Moreover, the reinforcing bar binding tool according to claim 8 is the reinforcing bar binding tool according to any one of claims 1 to 7 ,
The bolt is a flange bolt.

Further, 9 Symbol mounting of the origination reinforcing bar binding device according to claim, in the reinforcing bar binding device according to any one of claims 1 to 8,
The metal wire is a hard steel wire.

In the reinforcing bar binding device according to claim 1, as described above, a binding tool body formed by bending one metal wire and a set of bolts and nuts, and the binding tool body includes one metal wire. Since it has a configuration in which it is curved in advance in a substantially U shape and both ends are rounded and an insertion hole is formed through which the bolt can be inserted, a metal wire is obliquely attached to the reinforcing bar intersection, and the insertion hole has a bolt The binding of the reinforcing bar crossing is completed with a simple operation of inserting the nut and tightening the nut.
Therefore, the bundling work of the reinforcing bar intersections that does not require firm fixation is easy, and the work by a professional is not required, so that the work cost can be reduced.

In the reinforcing bar binding tool according to claim 2, as described above, the insertion hole is made into two or more windings in a coil spring shape toward the outside, so that only the work of rounding the wire at the time of manufacturing the binding tool body is performed at the time of binding. The shape retaining force of the insertion hole can be maintained.
Therefore, the manufacturing cost of the binding tool main body can be reduced.

  In the reinforcing bar binding device according to claim 3, as described above, at least one of the insertion holes is formed in a coil spring shape in the counterclockwise direction toward the outside, so that a nut is formed on the inner surface of the distal end of the wire wound in the coil spring shape. Since the side surfaces of the nuts are in contact with each other and resistance can be given to the rotation of the nut, the bundling operation can be performed quickly.

  In the reinforcing bar binding tool according to claim 4, as described above, one insertion hole is formed in a left-handed coil spring shape toward the outside, and the other insertion hole is formed in a right-handed coil spring shape toward the outside. As a result, the bolt can be rotated smoothly without resistance, and the nut can be in contact with the inner surface of the tip end of the wire wound in the shape of a coil spring, giving resistance to the rotation of the nut. Will be able to do.

  In the reinforcing bar binding tool according to claim 5, as described above, the nut includes a nut main body portion having a diameter smaller than the inner diameter of the insertion hole, and a wire rod wound in a coil spring shape with a diameter greater than the outer periphery of the nut main body portion. By providing a flange with a stopper piece that prevents rotation of the nut by contacting the inner surface of the tip, rotation of the nut during bundling is prevented, so bundling can be performed simply by rotating the bolt. Thus, it is possible to speed up the bundling work.

  According to a sixth aspect of the present invention, the nut is a substantially rectangular plate-like nut having a stopper piece that prevents the nut from rotating by contacting the inner surface of the tip end of the wire wound in a coil spring shape. As a result, it is possible to perform the binding only by rotating the bolt at the time of binding, and thereby it is possible to speed up the binding work.

  In the reinforcing bar binding tool according to claim 7, as described above, the nut press-fits the nut main body portion into the insertion hole or is fixed to the binding tool main body in advance by welding, an adhesive, etc. Efficiency can be increased.

In the reinforcing bar binding tool according to the eighth aspect, as described above, the use of the washer can be omitted by using the bolt as a flange bolt.

In the reinforcing bar binding tool according to the ninth aspect, as described above, the metal wire is made of hard steel wire, so that appropriate strength and binding force can be increased.

It is a front view which shows the binding tool main body of the reinforcing bar binding tool of Example 1. FIG. It is a top view which shows the binding tool main body of the reinforcing bar binding tool of Example 1. FIG. It is a bottom view which shows the binding tool main body of the reinforcing bar binding tool of Example 1. FIG. It is a side view which shows the binding tool main body of the reinforcing bar binding tool of Example 1. FIG. It is a front view which shows the combined state of the binding tool main body of the reinforcing bar binding tool of Example 1, and a bolt and a nut. It is a left view which shows the binding tool main body of the reinforcing bar binding tool of Example 1. It is a perspective view which shows the nut of the reinforcing bar binding tool of Example 1. It is a perspective view which shows the reinforcing bar crossing part binding state of the reinforcing bar binding tool of Example 1. FIG. It is a front view which shows the other example of the combined state of the binding tool main body and bolt and nut of a reinforcing bar binding tool. It is a top view which shows the other example of the combined state of the binding tool main body and bolt and nut of a reinforcing bar binding tool. It is a bottom view which shows the other example of the combined state of the binding tool main body of a reinforcing bar binding tool, and a volt | bolt and a nut. It is a side view which shows the other example of the combined state of the binding tool main body and bolt and nut of a reinforcing bar binding tool. It is a front view which shows the other example of the combined state of the binding tool main body and bolt and nut of a reinforcing bar binding tool. It is a whole front view which shows the other example of a nut. It is a whole left view which shows the other example of a nut. It is a perspective view which shows the other example of a nut.

  Embodiments of the present invention will be described below with reference to the drawings.

First, the reinforcing bar binding tool of Example 1 will be described with reference to the drawings.
As shown in FIGS. 5 to 7, the reinforcing bar binding tool includes a binding tool body 1, a pair of bolts 2, and a nut 3.

  More specifically, as shown in FIGS. 1 to 4, the binding tool body 1 is formed by bending a single metal wire 11 into a substantially U shape in advance, rounding both ends thereof, and inserting bolts 2. The insertion holes 12 and 12 are formed.

  The insertion holes 12, 12 are wound two times in the left-handed coil spring shape toward the outside, and their tip portions intersect the substantially U-shaped portion of the metal wire 11.

  Further, a hard steel wire is used as the metal wire 11.

The bolt 2 is a flange bolt as shown in FIGS.
Returning to FIGS. 5 to 7, the nut 3 includes a nut main body 31 having a diameter smaller than the inner diameter of the insertion hole 12, and a tip 11 a of a wire rod wound in a coil spring shape, which is larger than the outer periphery of the nut main body 31. A flange 32 having a stopper piece 32a that prevents the rotation of the nut 3 by contacting the inner surface of the nut 3 is provided.
The nut 3 is preferably press-fitted into the insertion hole 12 with the nut body 31 or fixed to the binding body 1 with welding, an adhesive, or the like.
In FIG. 8, 4 and 5 indicate reinforcing bars.

Next, operations and effects of the first embodiment will be described.
(1) In the reinforcing bar binding device according to the first embodiment, as described above, the binding device main body 1 is formed by bending a single metal wire 11, the pair of bolts 2, and the nut 3. , Since one metal wire 11 is bent in advance in a substantially U shape, and both ends thereof are rounded and insertion holes 12 into which bolts 2 can be inserted are formed. 5, the binding of the reinforcing bar intersections is completed with a simple operation of inserting the bolts 2 through the insertion holes 12 and 12 and tightening them to the nuts 3.
Therefore, it is easy to bind the reinforcing bar intersections that do not require firm fixation, and does not require work by professionals, so that the work cost can be reduced.

(2) Further, the shape of the insertion hole 12 can be maintained by simply rounding the metal wire 11 during the manufacture of the tying member main body 1 by making the insertion hole 12 outward with two or more turns in a coil spring shape. can do.
Therefore, the manufacturing cost of the binding tool main body can be reduced.

  (3) Further, by making the insertion hole 12 outward and making it a right-handed coil spring shape, the bolt 2 can be smoothly rotated without resistance and the tip of the metal wire 11 wound in the coil spring shape Since the nut 3 abuts on the inner surface side of 11a and resistance can be given to the rotation of the nut 3, the bundling operation can be performed quickly.

  (4) Further, the nut 3 has a nut main body portion 31 having a diameter smaller than the inner diameter of the insertion hole 12 and an inner surface of the tip 11a of the metal wire 11 wound in a coil spring shape with a diameter larger than the outer periphery of the nut main body portion 31. Since the rotation of the nut 3 at the time of bundling is prevented by providing the flange 32 having the stopper piece 32a that prevents the rotation of the nut 3 by contacting the nut 3, the bundling can be performed only by rotating the bolt 2. This makes it possible to speed up the bundling work.

  (5) Moreover, since the nut 3 press-fits the nut main body portion 31 into the insertion hole 12, or is fixed to the binding tool main body 1 in advance by welding, an adhesive, etc., the work efficiency at the time of fastening can be improved. It becomes like this.

(6) Moreover, use of a washer can be abbreviate | omitted by making the volt | bolt 2 into a flange volt | bolt.

(7) Moreover, moderate strength and easiness of bundling work can be ensured by using annealed steel wire for the metal wire 11.

  Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included in the present invention.

For example, in the embodiment, one insertion hole 12 of the binding tool body 1 has a left-handed coil spring shape toward the outside, and the other insertion hole 12 has a right-handed coil spring shape toward the outside. As shown in FIGS. 9 to 12, one insertion hole 12 may have a left-handed coil spring shape toward the outside, and the other insertion hole 12 may have a right-handed coil spring shape. By doing in this way, the shaping | molding process of the binding tool main body 1 becomes easy.
Further, as shown in FIG. 13, the insertion hole 12 on the nut mounting side has a coil spring shape on the left side facing the outside, and the insertion hole 12 on the bolt insertion side has a coil spring shape on the inside, The bolt 2 can be tightened smoothly and the rotation of the nut 3 can be prevented.

  Further, in the embodiment, as a nut, a nut main body portion having a diameter smaller than the inner diameter of the insertion hole, and a larger diameter than the outer periphery of the nut main body portion, abutting on the inner surface side of the tip of the wire wound in a coil spring shape The one provided with a flange having a stopper piece for preventing the rotation of the nut was used, but the substantially rectangular shape having a stopper piece for preventing the rotation of the nut by abutting on the tip inner surface side of the wire wound in a coil spring shape. By using a plate-like nut, the material cost can be reduced.

  Further, in the embodiment, as the nut 3, as shown in FIGS. 5 to 7, a nut main body 31 having a diameter smaller than the inner diameter of the insertion hole 12 and a large diameter from the outer periphery of the nut main body 31, and a coil spring shape. Although it was set as the structure provided with the flange 32 which has the stopper piece 32a which prevents rotation of the nut 3 by contact | abutting to the inner surface side of the front-end | tip 11a of the wound wire rod, as shown to FIGS. It is good also as a structure which provided the nut piece 31b smaller than the internal diameter of this, and the flange 32, and formed the stopper piece 32b which cuts and raises the outer periphery of this flange 32 toward a nut main body direction in several places, and prevents the rotation of the nut 3. FIG. In this case as well, it is desirable to press-fit the nut body 31 into the insertion hole 12 or fix it to the binding body 1 by welding, an adhesive, or the like.

  Moreover, although hard steel wire was used as the metal wire in the examples, annealed iron wire, iron wire, and the like can be used, and the thickness and length of the wire are also arbitrary.

  Further, in the embodiment, the insertion hole is wound twice in the shape of a coil spring and intersected with the substantially U-shaped portion of the metal wire, but the number of turns is arbitrary.

  Further, in this embodiment, an example in which the crossing portions of two reinforcing bars are bound is shown, but the number of reinforcing bars is arbitrary, and all the bindings of a plurality of reinforcing bars such as a portion where the reinforcing bars overlap in parallel are shown. Can be used.

  In the embodiment, the flange bolt is used as the bolt. However, a normal bolt or a combination of a normal bolt and a washer may be used.

  Further, in the embodiment, as a nut, a nut main body portion having a diameter smaller than the inner diameter of the insertion hole, and a larger diameter than the outer periphery of the nut main body portion, abutting on the inner surface side of the tip of the wire wound in a coil spring shape Although the thing provided with the flange which has a stopper piece which blocks | prevents rotation of a nut was used, the combination of a normal hex nut or a hex nut and a washer may be sufficient.

11a Tip of metal wire 1 Binder body 11 Metal wire 12 Insertion hole 2 Bolt 3 Nut 31 Nut body 32 Flange 32a Stopper piece
32b stopper piece 4 rebar 5 rebar

Claims (9)

In order to solve the above-mentioned problem, the reinforcing bar binding tool according to claim 1 is composed of a binding tool body formed by bending one metal wire and a set of bolts and nuts.
The binding tool main body is a reinforcing bar binding tool characterized in that one metal wire is bent in a substantially U shape in advance, and an insertion hole into which the bolt can be inserted is formed by rounding both ends thereof. In the reinforcing bar binding tool according to claim 1,
The reinforcing bar binding tool, wherein the insertion hole has two or more turns in a coil spring shape toward the outside. In the reinforcing bar binding statement according to claim 2,
At least one of the said insertion holes is a coil spring shape of the left rotation toward the outer side, The reinforcing bar binding tool characterized by the above-mentioned. In the reinforcing bar binding statement according to claim 2,
The reinforcing bar binding tool characterized in that the one insertion hole has a left-handed coil spring shape toward the outside, and the other insertion hole has a right-handed coil spring shape toward the outside. In the reinforcing bar binding tool according to claim 2 or 3,
The nut is rotated by contacting the nut main body having a diameter smaller than the inner diameter of the insertion hole and the inner surface of the end of the wire wound in the shape of the coil spring at a diameter larger than the outer periphery of the nut main body. A reinforcing bar binding tool comprising a flange having a stopper piece for blocking. In the reinforcing bar binding tool according to claim 2 or 3,
A reinforcing bar binding tool, wherein the nut is a substantially rectangular plate-like nut having a stopper piece that prevents rotation of the nut by contacting the inner surface of the tip end of the wire wound in a coil spring shape. In the reinforcing bar binding tool according to any one of claims 1 to 6 ,
Reinforcing bar binding tool, wherein the nut press-fits the nut main body part into the insertion hole, or is fixed to the binding tool main body by welding, adhesive or the like In the reinforcing bar binding tool according to any one of claims 1 to 7 ,
The reinforcing bar binding tool , wherein the bolt is a flange bolt .   In the reinforcing bar binding tool according to any one of claims 1 to 8,
  A reinforcing bar binding tool, wherein the metal wire is an annealed steel wire.

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