JP2009046902A - Reinforcement binding wire unit and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To actualize continuous supply by avoiding a conventional reinforcement binding wire unit set in a predetermined binding device from causing unreasonable bending. <P>SOLUTION: This reinforcement binding wire unit is provided for joining crossing portions or joint portions of reinforcements together to assemble the reinforcements to be arranged in a concrete building. Reinforcement binding wires each have a loop portion in which the plurality of reinforcements to be bound and joined together are embraced, and a leg portion in series thereto which joins the reinforcements together while twisting the plurality of reinforcements being embraced in the loop portion. The plurality of reinforcement binding wires are junctionally held in a neighboring condition and in a separative manner with a coating material. The crossing portions or the joint portions of the reinforcements are embraced in the loop portions and bound while twisting the leg portions. They are strongly fastened with binding operation. Thus, wire materials are continuously supplied in an unreasonably stable manner during binding work for strongly binding the reinforcements. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a reinforced concrete structure, in particular, a wire or tie wire used for binding large diameter aron piles and thick reinforcing bars arranged inside a foundation or retaining wall, In the state, a plurality of auxiliary bars (strips) are arranged at a required interval in a direction perpendicular to a plurality of main bars arranged at a required interval, and the intersections of the reinforcing bars or the ends of the reinforcing bars are connected to each other. The present invention relates to a binding wire unit for reinforcing bars connected or joined like a staple of staples so as to enable automatic and continuous binding work using a required binding device, and a method for manufacturing the same.

  When binding or connecting this type of rebar, the intersection of the main and auxiliary bars is welded by spot welding means, or a skilled worker wraps a wire or binding wire around the crossing of the rebar, Bundling was performed by hooking and twisting the ends of the wire numbers or the binding wires using a binding hacker jig.

  However, the welding of reinforcing bars by the former spot welding means has a problem that the welded portion is weakened by heating, and the welded portion easily peels off when a strong external force is applied.

  In addition, the binding of reinforcing bars by hand using the latter binding hacker jig has a problem that not only the skill of the operator is required but also the workability is poor. In general, the diameter of the reinforcing bars used for bundling by hand is approximately 10 to 20 mm, and is disposed inside the concrete such as a column of a building, a floor slab, or a wall. The diameter of the wire used for bundling or the bundling wire is at most about 0.6 mm. For example, strength such as a large diameter aile pile used for foundations, retaining walls or piers is required. In the structure, a rebar of about 25 to 35 mm is used, and the diameter of the wire or the bundling wire that binds the rebar is about 2.5 to 3 mm, and when it becomes thick like this, the binding hacker jig twists. The fact is that you can't.

  By the way, this type of binding wire for reinforcing bars is, as a first known example, for example, a binding wire for reinforcing bars construction that is folded in two in order to bind the crossing portion and the joint portion of the reinforcing bar when assembling the reinforcing bars. A binding wire for reinforcing bar construction is known in which portions and both end portions are color-coated (see Patent Document 1).

  In the known technique of Patent Document 1, not only is a single binding wire stored before use, but a plurality of the binding wires are bundled, and one binding wire is bundled from the bundle of the plurality of binding wires. It is shown that it is used by extracting one by one.

  Moreover, the binding wire which concerns on a 2nd well-known example is what is used for an automatic reinforcing bar binding machine, and the reverse U-shaped binding wire which formed both ends in the shape of a hook and unitized is publicly known. This reverse U-shaped binding wire is housed in a binding wire set box, and by hitting the reverse U-shaped binding wire with a striking device composed of a guide rail and a tucker, the lower U-shaped binding wire is turned around from the groove of the guide rail. It pops out upward (see Patent Document 2).

  Then, set the unitized inverted U-shaped binding wire, and the head of the binding wire jumps upward from the groove around the lower part of the reinforcing bar along the guide rail by momentarily driving the head. Since the rebar is constrained by hooking and rotating and twisting the lower hook in conjunction with the lower hook, the work is quick, the quality is uniform, the efficiency is improved, and it can be greatly improved.

JP 2000-336844 A JP 2002-205705 A

However, in the publicly known technology of Patent Document 1, a plurality of binding wires before use are bundled and stored, but this is merely a bundling of a plurality of separate binding wires using a rope or the like. However, in actual use, since the binding wires are pulled out from the binding wire bundle one by one, only one binding wire is bundled for convenience of storage. This is only a single unity binding wire, and since it uses a hacker jig, it can only be used with a thin binding wire, and since the binding force against the reinforcing bar is weak, the main muscle has a binding strength with the auxiliary muscle. However, the result is that the strength of the concrete structure is reduced.

  Further, in the known technique of Patent Document 2, hooks are formed at both lower ends of a unitized inverted U-shaped binding wire, and the lower ends of both ends are guided rails by driving the head with a tacker. In consideration of the fact that the wire goes around the lower part of the rebar and jumps upward, it is not easy to bend even if it is tucked with a tucker if it is not thin and rigid as a wire rod, and in addition, there is a hook smoothly In some cases, it is not guided and does not protrude straight upward, and as a result, the hook does not catch on the rotary binding hacker and cannot be tightened. Therefore, it is extremely uncertain structurally when used.

  In short, the binding wire of Patent Document 1 is in a disjointed state and cannot be used by being attached to an automatic binding device or the like, and the inverted U-shaped binding wire of Patent Document 2 has hooks formed at both ends. In other words, a special rail mechanism is required and the construction is uncertain because it is used by being pushed from top to bottom with a tucker and forcibly bent from bottom to top.

  Therefore, there is a problem to be solved by providing a binding wire unit for reinforcing bars having a structure that can be set in a predetermined device or the like during use and continuously supplied without causing excessive bending. is doing.

  As a concrete means for solving the above-mentioned problem, a first invention according to the present invention is a binding for reinforcing bars for joining crossing portions or joint portions of reinforcing bars to assemble reinforcing bars arranged in a concrete building. A rebar that binds the reinforcing bars to each other by twisting them together in a state where a plurality of reinforcing bars are held in the loop part. The present invention provides a reinforcing wire binding wire unit characterized in that it has a structure in which legs are formed in series and a plurality of the reinforcing wire binding wires are connected and held by a coating material in an adjacent state and separable.

  In the first aspect of the present invention, as an additional requirement, the connection holding of the binding wire for reinforcing bars by the coating material is performed by an adhesive film; and the binding wire for reinforcing bars is formed by an annealing wire. It is a waste.

  In addition, as a second invention, there is provided a method for manufacturing a reinforcing wire binding wire unit for joining crossing portions or joint portions of reinforcing bars so as to assemble reinforcing bars arranged in a concrete building. A male mold material having a shape, and an internal space substantially corresponding to the outer shape of the male mold material, and a female mold material that is divided into two at the center and each of the divided halves is supported by a shaft so as to be opened and closed. A step of sequentially drawing the annealed wires wound in a coil shape and removing the distortion with a linear machine, and then cutting the linear wires with the required length, and a plurality of the cut linear wires A step of arranging the end portions aligned in an adjacent state so as to cross the opening of the female mold material, and lowering the male mold material while pushing and bending the wire material from the upper central portion of the arranged linear wire material , Female mold material The step of closing the female mold material by contacting the bottom and further lowering the wire mold so that the wire is aligned with the outer shape of the male mold material and forming the loop portion and the leg portion in series, and after the molding step, the male mold material is Releasing the mold from the female mold together with the wire formed by forming the loop portion and the leg, and releasing the wire formed from the male mold in the adjacent position at the raised position; The present invention provides a method for producing a binding wire unit for reinforcing bars, comprising the step of joining the formed wire rods in the adjacent state in a separable manner with a coating material.

  In the second aspect of the present invention, the joining with the coating material includes, as an additional requirement, forming at a plurality of locations by forming a strip-shaped adhesive coating in the adjacent direction of the formed wire.

  The reinforcing wire binding wire unit according to the first aspect of the present invention includes a loop portion in which a plurality of reinforcing bars to be bound and coupled are held in each of the reinforcing wire binding wires, and a plurality of reinforcing bars in the loop portion. The structure is such that a plurality of the reinforcing bar binding wires are connected to each other in a state of being separated and connected to each other by a coating material by twisting together in a state where the reinforcing bars are held together. By setting to the required automatic binding device and pushing one by one, the crossing part or joint part comes to be held by the loop part, and it can be bound by twisting the leg part in that state, In the extrusion one by one, the boundary between the loop part and the leg part contacts the rebar, but the leg part expands due to the elasticity of the wire and returns to the base after holding the rebar, so the state where the rebar is held in the loop part is Cheap Since the legs can be twisted in this state, tightening by binding is strongly performed, and it is possible to supply the wire continuously stably and reasonably during the binding work, and the binding of the reinforcing bars There is an excellent effect of strengthening.

  In addition, the method for manufacturing a reinforcing wire binding wire unit according to the second invention has a male mold material having a cross-sectional shape and an internal space substantially corresponding to the outer shape of the male mold material, and is divided into two at the center. In addition, using a female mold material in which each divided half body is supported so as to be opened and closed by a shaft, a plurality of annealed wires cut to a required length are arranged in the opening of the female mold material and pressed by the male mold material. By forcibly pushing into the female mold material, the loop part and the leg part are formed in a series to form a binding wire in an adjacent state, and the wire material formed in the adjacent state is joined in a separable manner by a coating material. It is a binding wire unit, and the annealed wire is used as it is, and the binding wire having the loop portion and the leg portion is adjacent to each other, and can be formed into a unit by being separable by a coating material. Set in the device, one by one Not only can supply separating demonstrates an excellent effect of production can be inexpensively provided tie wire not rust exist mill scale in easy and surface.

Next, the present invention will be described in detail based on specific embodiments.
A reinforcing wire binding wire unit according to an embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 is a perspective view showing an example of a binding wire unit for reinforcing bars according to the present invention, and FIG. 2 is an explanatory diagram showing a specific example of the usage status of one binding wire in the binding wire unit 1. .

  Reinforcing bar binding wire unit 1 has an adjacent length in order to gather a large number (50 to 100) of binding wires 2 formed in a “substantially bowl shape” in an adjacent state and maintain the assembled state until use. A band-like film 3 made of an adhesive is formed at a plurality of locations along the direction and solidified to be connected to the individual binding wires 2 in a separable manner.

  In this case, the binding wire 2 uses an annealed wire having a diameter of 2.0 to 3.5 mm, and the annealed wire has a black skin (an oxide film that plays a role of rust prevention) on the entire surface thereof. The product is used as it is, and the annealed line is formed into a “substantially saddle shape” by, for example, mold forming.

  As shown in FIG. 2A, the shape of the “substantially saddle shape” in the binding wire 2 is a plurality of reinforcing bars to be bound, for example, the intersection of the main muscle 4 and the auxiliary muscle 5 or the main bars. Loop portion 2a in which the adjacent connection portions are held, and leg portions 2c that are slightly extended outwardly from the opening portion 2b of the loop portion 2a and formed to have a required length.

  And it is preferable that the space | interval of the opening part 2b in the said loop part 2a is formed in the space | interval slightly narrower than the diameter of the main muscle 4 to be held. The reason is that, for example, when the binding wire 2 is mechanically pushed down and inserted into the intersection of the main muscle 4 and the auxiliary muscle 5 to be bound, there is no resistance to the auxiliary muscle 5. The binding wire 2 passes through, but the opening 2b comes into contact with the main muscle 4, so that a predetermined resistance and load are generated in the push-down action. The presence of the binding wire 2 is mechanically detected by the resistance / load, and the opening 2b of the binding wire 2 is expanded by further pushing down while detecting the resistance / load, and the main muscle 4 When the diameter is exceeded, the pressing resistance / load disappears, and it can be mechanically recognized that the binding wire 2 is properly inserted. If resistance or load is not detected in the mechanical push-down action, it is possible to detect that the binding wire 2 is not supplied for some reason and notify the operator.

  As for the length of the leg portion 2c, as shown in FIG. 2B, the binding wire 2 holds the main muscle 4 and the auxiliary muscle 5 in the loop portion 2a in an appropriate state, that is, FIG. (A) The opening leg width is mechanically narrowed so that the leg part 2c expanding from the state of (A) becomes substantially parallel, and, for example, a mechanical torsion member is engaged with the end part of the leg part 2c, When a twist of at least 2 rotations, preferably 3 rotations, is applied, the entire binding wire 2 is tightened from the position indicated by the phantom line, and even if the twist is applied, the end portion remains untwisted. It is formed in the length of the extent. As for the length of the leg 2c, for example, it is sufficient that the length of the leg 2c is about 15 times the diameter of the binding wire 2.

  Next, the manufacturing method of the binding wire unit for reinforcing bars will be described with reference to FIGS. FIG. 3 is an explanatory view showing a situation in which the binding wire unit is molded using a mold material, FIG. 4 is an end view schematically showing the male mold material in a state of being detached from the female mold material after the molding process, and FIG. FIG. 6 is an end view schematically showing a receiving member used when detaching the binding wire molded from the male mold material, and FIG. 6 schematically shows the process of detaching the binding wire molded from the male mold material. FIG.

  First, in FIG. 3, reference numeral 11 denotes a male mold member having a required length having a bowl-shaped cross section, 12 denotes a female mold member, and the female mold member 12 has an internal space substantially corresponding to the outer shape of the male mold member 11. At the same time, the halves are divided into two in the longitudinal direction at the center, and the divided halves 12a and 12b are supported by the shafts 13a and 13b so as to be opened and closed. The lengths of the male mold member 11 and the female mold member 12 are approximately 40 cm, and the lower ends 12c of the divided halves 12a and 12b of the female mold member 12 are formed in an uneven state so that they can alternately enter. The divided halves 12a and 12b are always urged to open.

  The wire rod 14 formed by using such a mold member uses an annealed wire wound in a coil shape that is generally commercially available, for example, an annealed wire having a diameter of 2.0 to 3.5 mm. The annealed wire should be used as it is with a black skin (an oxide film that plays a role of rust prevention) on its entire surface, or it can be used after removing the black skin portion if necessary. .

  In this case, although not shown in the figure, the annealed wire wound in a coil shape is drawn out sequentially, the distortion is removed with a commonly used linear machine, and the black skin part of the surface is rotated if necessary. After removing it with a wire brush and making it straight, it is cut into a wire 14 having a set straight length within a required length, for example, a range of about 23 ± 2 cm, and the plurality of cut wires 14 are cut into the female mold The 12 openings are arranged adjacent to each other so as to cross (orthogonal). At this time, it is checked whether or not the plurality of wire rods 14 are accurately arranged in an orthogonal state and in an adjacent state with respect to the female mold member 12, and at least the positioning and one end are aligned. Assembling means 15 such as is provided.

  As described above, after arranging a plurality of wires, for example, 80 to 100 in the case of the wire 14 having a diameter of 2.0 mm and 50 to 70 in the case of the wire 14 having a diameter of 3.5 mm, the male wires are arranged. When the mold material 11 is lowered, the distal end portion of the male mold material 11 comes into contact with the central portion of the wire material 14 and is pushed down, whereby the wire material 14 bends along the shape of the distal end portion side of the male mold material 11. Further, when the male mold material 11 is pushed down as it is, when the female mold material 11 abuts on the lower end portion 12c side and is pushed down, the half bodies 12a and 12b of the female mold material 12 are closed in the direction to be closed by the shafts 13a and 13b. The wire 14 is sequentially deformed along the outer shape of the male mold 11 by the rotation in the closing direction, and when the male mold 11 reaches the bottom dead center, the female mold 12 is completely closed and the wire 14 is By tightening from the outside, the wire 14 is formed into the outer shape of the male mold 11, that is, the shape of the binding wire 2 by both molds.

  The male mold 11 rises after reaching the bottom dead center. The pressing force is released by the ascending action, and the divided halves 12a and 12b of the female mold member 12 are urged to open about the shafts 13a and 13b, respectively, and the female mold member 12 is opened. As shown in the figure, the male mold member 11 is separated from the female mold member 12 and rises while holding the wire 14 in which the loop portion 2a and the leg portion 2c are formed in series on the outer peripheral surface. . At this time, since the formed wire 14 is released from the outside tightening by the female mold member 12, both ends of the wire 14, that is, the leg 2c is slightly opened by its own rigidity and repulsive force. As a result, a slight gap is formed between the male mold member 11 and the mold member 11.

  The raised male mold 11 is slightly moved and set at another position, and at that position, the wire 14 molded into the shape of the binding wire 2 is released from the male mold 11. In this case, as shown in FIG. 5, a receiving member 16 that can be received in a state where the wire 14 is formed into the shape of the binding wire 2 is used. The receiving member 16 has a shape that is substantially the same as the outer shape of the male mold member 11 and is slightly smaller in size. The receiving member 16 is divided into two so as to hardly change the circular shape of the tip end portion 16a, and is connected via a shaft 17 on the tip end side. The two half bodies 16b and 16c can be opened and closed. In order to prevent rattling after receiving the wire 14 molded into the shape of the binding wire 2, for example, the wedge material 18 or the like is driven and opened between the rear ends of the halves 16b and 16c so that the binding wire The holding state of 2 is stabilized and transferred to the next step.

  As shown in FIG. 6, such a receiving member 16 is brought into contact with the end of the male mold member 11 holding the molded wire member 14 on the outer peripheral surface, and the wire member 14 is attached by an appropriate pushing means 19 or the like. Move to the receiving member 16 side. In this case, the wire 14 is transferred to the receiving member 16 in a state where the wire 14 is formed into the shape of the binding wire 2, that is, the plurality of wires 14 are maintained in the adjacent state. The extrusion means 19 is provided at, for example, at least four positions on the left and right sides of the male mold member 11, and these abut against the wire 14 located at the end, and simultaneously perform an extrusion operation with a uniform extrusion force by one drive source. To do. In short, it is only necessary that the wire 14 is moved from one end to the other end from the male mold member 11 and pushed and transferred to the receiving member 16 that is slightly smaller in size at the other end. .

  The wire 14 formed in the shape of the binding wire 2 received by the receiving member 16 is somewhat loose because the size of the receiving member 16 is slightly smaller, but the order of adjacent states in the wire 14 is completely different. When the molding material 11 is molded with the male mold material 11 by pushing the wire material 14 from both sides and bringing it to the center portion while driving the wedge material 18 between the rear ends of the receiving members 16 half 16b, 16c. In the same manner as described above, the wire 14 formed into the shape of the binding wire 2 can be neatly aligned in the adjacent state.

  The receiving member 16 on which the binding wire 2 shaped wire 14 arranged in an orderly manner is placed is maintained in the state until it is transported to the next process and finished into a final product. That is, in the next step, as shown in FIG. 1, the step of forming the film 2 with an adhesive is performed at a plurality of locations, for example, the step of spraying and applying a low-viscosity adhesive in a strip shape is performed. is there.

  In this case, if a portion that does not require a coating (not painted) is mechanically blinded and spray-coated, a coating having a predetermined strength can be formed in a predetermined range. In addition, the coating can be applied substantially uniformly along the peaks and valleys of the wire 14 in the adjacent state, whereby the plurality of binding wires 2 shaped wire 14 are gathered into the adjacent state so as not to fall apart. .

  The receiving member 16 on which the wire 14 having the binding wire 2 shape is placed after the adhesive application step is stored as it is until the adhesive is dried, and when the adhesive is dried, the wedge material 18 of the receiving member 16 is removed. The wire 14 in the shape of the binding wire 2 is extracted and appropriately packaged to form a product (reinforcing wire binding wire unit).

  In any case, the reinforcing wire binding wire unit according to the present invention includes a loop portion in which a plurality of reinforcing bars to be bound and bonded are held in each of the rebar binding wires connected and held, and a plurality of reinforcing bars in the loop portion. A series of leg portions for joining the reinforcing bars by twisting them together while holding them, and connecting and holding a plurality of the binding wires for the reinforcing bars in an adjacent state and separable with a coating material. Is a round wire, especially by using an annealed wire with a surface covered with black skin and a diameter of 2.0 to 3.5 mm as it is. For example, it can be used to bind a relatively thick reinforcing bar having a main bar diameter of 35 mm and an auxiliary bar diameter of about 20 mm, and is set in a required automatic binding device one by one. Press When this happens, the crossing part or joint part will be held by the loop part, and it can be easily bundled by twisting the legs in that state, and it can be widely used for rebar assembly of earthquake resistant reinforced concrete structures .

  In addition, the manufacturing method of the binding wire unit for reinforcing bars of the present invention has a male mold material having a cross-sectional shape and an internal space substantially corresponding to the outer shape of the male mold material, and is divided into two at the center and divided. In addition, a female mold material in which each half is supported so as to be opened and closed by a shaft is used, and an annealed wire whose surface is covered with black skin and has a diameter of 2.0 to 3.5 mm is cut into a required length as it is. A plurality of lines are arranged in the opening of the mold material, and pressed into the female mold material by pressing with the male mold material, and the loop portion and the leg portion are formed in series to form a binding line in an adjacent state, Bonded wire unit is formed by joining wire rods molded adjacent to each other so as to be separable by a coating material, and it is easy to manufacture because it is molded, and it provides a low-cost binding wire that does not rust due to the presence of black skin on the surface. Can be widely used as a binding wire for various types of reinforcing steel braids You can use.

It is the perspective view which abbreviate | omitted and showed one part of the binding wire unit for reinforcing bars which concerns on this invention. In a situation where the binding wire unit is set and used in a binding device, (A) is an explanatory diagram showing a situation where one binding wire is separated and a reinforcing bar is held in a loop portion, and (B) is a leg portion. It is explanatory drawing which showed the condition which twists and tightens a reinforcing bar and binds. It is explanatory drawing which shows the principal part of the method of manufacturing the binding wire unit for reinforcing bars which concerns on this invention using a male type | mold material and a female type | mold material. It is explanatory drawing which shows the condition which raised the male type | mold material after shape | molding the wire to the binding wire shape with the type | mold material in the manufacturing method. It is a schematic end view of the principal part which shows an example of the receiving member used when the wire shape | molded in the binding wire shape in the manufacturing method is made to detach | leave from a male mold material. It is explanatory drawing which showed schematically the condition which separates the wire shape | molded in the binding wire shape from the male mold material in the manufacturing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Binding wire unit for reinforcing bars 2 Binding wire 2a Loop part 2b Opening part 2c Leg part 3 Adhesive film 4 Main reinforcement 5 Supplementary reinforcement 11 Male mold material 12 Female mold material 12a, 12b Half body 12c Lower end part 13a, 13b Shaft 14 Wire material DESCRIPTION OF SYMBOLS 15 Alignment means, such as a contact plate 16 Receiving member 16a Lower end part 16b, 16c Half body 17 Axis 18 Wedge material 19 Extrusion means

Claims (5)

Reinforcing bar binding wire for joining crossing or joint parts of reinforcing bars to assemble reinforcing bars arranged inside a concrete building,
The binding wire for reinforcing bars is a series of a loop portion that holds a plurality of reinforcing bars to be bound and joined together, and a leg portion that connects the reinforcing bars by twisting them together while holding the reinforcing bars in the loop portion. Forming,
A reinforcing wire binding wire unit characterized in that it has a structure in which a plurality of the reinforcing wire binding wires are connected and held in an adjacent state and separable by a coating material. The connection holding of the reinforcing wire binding wire is
The reinforcing wire binding wire unit according to claim 1, wherein the binding wire unit is made of an adhesive film. The binding wire for reinforcing bars is
Be formed of annealed wire
The binding wire unit for reinforcing bars according to claim 1 or 2. A method of manufacturing a rebar binding wire unit for joining crossing or joint portions of rebars to assemble rebars arranged inside a concrete building,
A male mold having a bowl-shaped cross-section, and a female mold having an internal space substantially corresponding to the outer shape of the male mold, and being divided into two at the center and each of the divided halves supported to be opened and closed by a shaft Using mold material,
A step of sequentially drawing the annealed wire wound in a coil shape and removing the distortion with a straight line machine, and then cutting the wire into a required length,
Arranging a plurality of the cut straight wire rods in an adjacent state so as to cross the opening of the female mold member, and arranging the ends aligned;
The male mold member is lowered while pushing and bending the wire rod from the upper central portion of the arranged linear wire rod, and the female mold member is closed by further lowering by contacting the bottom portion of the female mold member to make the wire rod male. A step of forming a loop portion and a leg portion in series along the outer shape of the mold material,
After the molding step, the male mold material is raised to release the female mold material together with the wire material having the loop portion and the leg portion formed, and the wire material molded from the male mold material is released in the adjacent state at the raised position. Molding, and
A step of joining the formed wire rods in the adjacent state separated from each other so as to be separable by a coating material.
The manufacturing method of the binding wire unit for reinforcing bars characterized by these. Joining with the coating material is
The method for producing a binding wire unit for reinforcing bars according to claim 4, wherein the strip-like adhesive film is formed in a plurality of locations by forming a strip-like adhesive film in the adjacent direction of the formed wire.

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