JP2009180010A - Method and device for binding reinforcement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently bind a thick wire or a thick binding wire used when a thick reinforcement for foundation or retaining wall is used. <P>SOLUTION: By using a binding device 1 in which a handle 2 for winding and fastening a binding wire is attached to the top of a rod 3 and a winding and fastening member 4 with a plurality of engagement holes 7, 8 through which the leg part 15b of the binding wire is inserted and engaged is attached to the bottom end of the rod 3, and which is formed in T-shape, the binding wire 15 is attached to the cross part of the reinforcement. The pair of leg parts 15b of the binding wire are inserted into the engagement holes 7, 8 of the winding and fastening member 4 and held, respectively. The pair of leg parts 15b of the binding wire are twisted by rotating the handle 2 to form a plurality of twisted parts, and the cross part of the reinforcement is tightened and bound by the binding wire 15. Even if the wire or the binding wire 15 used is so rigid as to have a thickness of exceeding 2.0 to 3.0 mm, the wire can easily and firmly bind the cross part of a main reinforcement 20 and an auxiliary reinforcement 21 in a proper state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a reinforced concrete structure, in particular, a thick reinforcing bar arranged inside a large diameter aile pile or foundation or retaining wall with a thick wire or binding wire, and is used in a factory or a construction site. For example, for a plurality of main muscles arranged in parallel at a required interval in a flat state, auxiliary muscles (strips) are arranged in a perpendicular direction, and the intersection of the main and auxiliary muscles is manually operated with a thick special binding line The present invention relates to a method and an apparatus for binding more firmly.

  In general, when manufacturing this type of knitted rebar or rebar rod, the intersection of the main and auxiliary bars is welded by spot welding means, or a skilled worker puts a wire or binding wire at the crossing of the rebar. Winding and binding were performed by hooking and twisting the ends of the number wires or the binding wires using a hook-shaped 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 general, the diameter of the reinforcing bars used for bundling by hand is about 10 to 20 mm, and is arranged inside the concrete such as a column of a building, a floor slab, or a wall. The diameter of the wire or cable used for bundling is about 0.6 mm at most, but for example, the strength of large diameter aron pile used for foundations, retaining walls or piers is required. In such a structure, a reinforcing bar of about 25 to 35 mm is used, and the diameter of the wire or the binding wire that binds the reinforcing bar is required to be about 2.0 to 3 mm in diameter. The fact is that a hacker jig cannot be twisted and tightened.

  By the way, the thing of a some structure is well-known as a rebar binding device of a general rebar (20 mm or less). As a first known example, a pair of traveling devices capable of self-running, a supporting beam connected to the traveling device, and a plurality of binding machines held by the supporting beam, the supporting beam is the pair of traveling devices. Can be arranged obliquely with respect to the traveling direction by shifting their relative positions, and the binding machine can bind the vertical and horizontal stripes by vertical movement, and the binding machine is a cartridge-type binding. This is a system in which a wire is attached and a bundling operation is performed by pressing (Patent Document 1).

  And the apparatus which consists of the supporting beam passed between the traveling apparatus which moves both construction outside and a traveling apparatus is arrange | positioned so that the reinforcing bar previously arrange | positioned may be straddled, and a horizontal rebar 1 with the binding machine attached to the supporting beam Binding is performed for each column.

  Further, the automatic rebar binding machine according to the second known example is provided with a binding wire set box in which an inverted U-shaped binding wire in which both ends are formed in a hook shape with the main body frame and the operation handle as main axes, It is the structure which provided the striking device for hitting a reverse U-shaped binding wire, the binding wire guide rail used also as a tacker, and the rotation binding hacker (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.

  Furthermore, as the reinforcing bar binding machine according to the third known example, a pair of arms composed of a reciprocating feeding arm and a retracting arm, the tip of each of which draws an arc like the locus of the arm tip. In this configuration, the reinforcing bar is held downward, and when returning to the upward direction, the binding wire is drawn from the tip of the feeding arm by the pulling arm, and the binding wire is further wound around the outer periphery of the reinforcing bar (Patent Document 3).

  And, it is possible to perform the work of feeding and drawing the binding wire by the movement of the pair of arms, and the cutting work and the binding work can be performed in a series of work by providing a cutting part in the binding part. It has a simple structure and is lightweight and compact, so it can be done manually.

JP 2002-121895 A JP 2002-205705 A JP 2003-82857 A

  However, in the reinforcing bar binding apparatus described in Patent Document 1, the specific configuration of the binding machine is not shown or explained. In particular, for the binding machine, it is preferable to use a method in which a binding wire of a cartridge type is attached and pressed so that the binding wire is wound around the reinforcing bar and twisted when it is lifted. Explain that the special binding wire of the formula pops out, the ends of the binding wire are joined together under the crossed reinforcing bars, and when it is lifted, the hook is automatically rotated 5-6 times with the top of the binding wire hooked However, the configuration of the binding wire and the configuration of the cartridge type binding wire are completely unknown.

  Further, in the automatic reinforcing bar binding machine described in Patent Document 2, the thickness of the unitized inverted U-shaped binding wire is unclear, and it was instantaneously driven into the tucker-combined binding wire guide rail. Sometimes it is necessary to have a thickness (about 0.6 mm) that is bent to the extent that it turns around the lower part of the reinforcing bar along the guide rail and jumps upward from the groove, and a binding wire that is weak and about 3 mm or less. If it is a tie wire having a thickness exceeding the thickness and strong rigidity, there is a problem that it cannot be practically used.

  Furthermore, the reinforcing bar binding machine described in Patent Document 3 also bends and protrudes the tip of the binding wire from the tip of the feed arm, moves downward so as to draw an arc, and holds the reinforcing bar at the tip of the pull arm. By hooking the bent tip of the binding wire and moving it upward, the binding wire is pulled out from the feeding arm, and the binding wire is turned around the outer periphery of the rebar, but both arms move upward. It is a requirement that the wire should be drawn out (1 mm or less) and have a low binding strength, and if it is a binding wire having a thickness exceeding 2.0 to 3 mm and strong rigidity, it cannot be used practically. Has the problem.

  Therefore, in the reinforcing bar binding device or the reinforcing bar restraining machine according to the known technique, the structure is based on the premise that a binding wire (numbered wire) having a thickness and rigidity that are generally used conventionally is used. In order to bind reinforcing bars whose thickness and strength are further increased, a binding wire having several times the thickness and strong rigidity is used. However, such a binding wire is a conventional binding wire. A bundling hacker jig cannot be twisted and bound, but a special bundling wire must be prepared or twisted with arm force, and only inefficient bundling can be achieved. Using a wire to attach a binding wire at the intersection of the main and auxiliary muscles and using a device that is driven manually, it has a problem to be able to bind and knitted firmly and efficiently Yes.

  One of the present invention includes a winding member having a plurality of engagement holes into which a binding wire winding handle is attached to a top portion of a rod and a leg portion of the binding wire is inserted and engaged with a lower end portion of the rod. Using the attached T-shaped binding device, a binding wire composed of a loop portion and a pair of leg portions whose contours form a human shape or a kokeshi shape is attached to the crossing portion of the reinforcing bar, and the attached binding wire The pair of leg portions are inserted and held in the engagement holes of the winding member, respectively, and the handle is rotated in a required direction to twist the pair of leg portions of the binding wire to form a plurality of twisted portions. Thus, the present invention provides a method for binding reinforcing bars, characterized in that a crossing portion of reinforcing bars is tightened and bound with a binding wire.

  Another aspect of the present invention is a binding wire winding handle, a rod having the handle attached to the top, and a binding wire attached to the lower end of the rod and attached to the intersection of the reinforcing bars. The winding member having a plurality of engagement holes into which the leg portion is inserted and engaged, and the leg portion of the binding wire inserted in the vicinity of the intermediate portion of the rod are in contact with each other and correspond to the thickness of the reinforcing bar and the length of the leg portion. The present invention provides a reinforcing bar binding device comprising a stopper member capable of adjusting the position of the reinforcing bar.

  In the invention according to the binding method, the binding wire is attached from the main reinforcing bar side of the reinforcing bar to be bound; and after the crossing portion of the reinforcing bar is fastened and bound by the binding wire, the binding device is laterally moved. An additional requirement is that the leg portion of the binding wire is detached from the engagement hole after being tilted.

  In the invention relating to the bundling device, the lower end opening of the engagement hole of the winding member is enlarged in a trumpet shape; and the second engagement hole is provided on the lower surface side of the winding member. It is included as an additional requirement that the auxiliary component is detachably disposed.

  The method for binding reinforcing bars according to the present invention is strong so that the thickness of the wire or the binding line used for binding reinforcing bars whose main bars exceed 20 to 30 mm also exceeds 2.0 to 3.0 mm. Even if it has rigidity, a binding device having a T-shape is used, and a pair of leg portions of a binding wire composed of a loop portion and a pair of leg portions attached to a crossing portion of a reinforcing bar are connected to a winding member. By simply engaging the joint holes and rotating the handle a plurality of times in the required direction, it is possible to easily and firmly bind the intersection of the main and auxiliary muscles in an appropriate state.

  Further, in the reinforcing bar binding device according to the present invention, since the handle is attached to the top of the rod and the winding member having a plurality of engagement holes is attached to the lower end, the light weight and the configuration are provided. Convenient, especially when the thickness of the reinforcing bar exceeds 20-30mm and the corresponding diameter of the binding wire exceeds 2.0-3.0mm, the pair of leg portions of the binding wire is used. The leg can be easily twisted together by turning the handle by inserting and engaging each through the engagement hole. Even if the thickness of the reinforcing bar and the thickness and length of the binding wire are changed, the stopper member is adjusted accordingly. It has an excellent effect of being able to adjust and respond immediately.

  Next, the present invention will be described in detail based on the specific embodiments shown in the drawings. 1 is a side view of a bundling device according to a first embodiment of the present invention, FIG. 2 is a bottom view of the bundling device, FIG. 3 is a side view of a bundling device according to a second embodiment, and FIG. Is a bottom view of the binding device, FIG. 5 is a side view of a binding wire used in the binding device of the present invention, FIG. 6 is a perspective view showing a use state of the binding device according to the first embodiment, and FIG. FIG. 8 is a partially cutaway view showing a state in which the leg of the binding wire attached to the crossing portion of the reinforcing bar is attached to the binding device, and FIG. 8 is a partially cutout view showing the state in which the binding device is twisted once. FIG. 9 is a perspective view of the binding wire in a state where the binding device is laid down on its side after being twisted three times by the binding device, and FIG. 10 is attached to a winding member in the binding device. FIG. 11 is a cross-sectional view of the main part of the winding member in a state where the auxiliary component is attached.

  First, the binding device 1 according to the first embodiment shown in FIGS. 1 and 2 is formed in a substantially T shape by attaching a rod-shaped handle 2 for winding a binding wire to the top of a rod 3. A winding member 4 is attached to the lower end of 3 for supporting the leg of the binding wire and performing the winding. A cylindrical head 3a is integrally attached to the top of the rod 3, and the handle 2 is inserted into the head 3a so that the left and right protruding lengths of the handle 2 can be adjusted appropriately. The handle 2 is provided with a retaining member 2a for retaining it at both ends.

  Further, a screw thread 3b is formed on the outer peripheral surface of the rod 3, and a disk-like stopper member 5 is provided at an intermediate position by screwing the screw thread 3b. The stopper member 5 is formed of a reinforcing bar to be bound. Positioning is performed according to the thickness and the leg length of the binding wire used therefor, and a fixing wing nut 6 is provided on the upper side in order to fix the positioned position. The stopper member 5 is used to stably and substantially uniformize the twisted portion formation and the tightening state of the binding wire. Therefore, in such a case, the position may not be adjusted by pulling it upwards in advance.

  The winding member 4 has a columnar shape as a whole, and is joined to the rod 3 by inserting the rod 3 into a hole provided in the central portion and screwing the connecting member 4a from the side to be firmly joined. It is. The cylindrical winding member 4 is formed with a plurality of (two) engagement holes 7 and 8 through which the pair of leg portions of the binding wire are inserted and engaged at symmetrical positions crossing the center portion, The opening portions on the lower side of the engagement holes 7 and 8 are formed with enlarged diameter portions 7a and 8a in a trumpet shape so that the leg portions of the binding wire can be easily inserted.

Next, a bundling device according to a second embodiment will be described with reference to FIGS. The same parts as those in the bundling device according to the first embodiment will be described with the same reference numerals.
In the same manner as in the above embodiment, the binding device 11 is formed in a substantially T shape by inserting and attaching a stick-shaped handle 2 for winding a binding wire to a cylindrical head 3a attached to the top of the rod 3. A winding member 9 is attached to the lower end of the rod 3 to support the leg of the binding wire and perform the winding. Note that the same is true in that both ends of the handle 2 are provided with retaining members 2a.

  Further, a thread 3b is engraved on the outer peripheral surface of the rod 3, and a disk-like stopper member 5 is provided at an intermediate position by being screwed to the thread 3b. The stopper member 5 is a reinforcing bar to be bound. And a wing nut 6 for fixing is provided on the upper side in order to secure the positioned position. But it is the same.

  The winding member 9 is different in that it has a rectangular or prismatic shape as a whole, and the binding of the winding member 9 and the rod 3 is performed by inserting the rod 3 into a hole provided in the center, and from the side surface. The connecting member 9a is screwed and firmly joined. The prismatic winding member 9 is formed with a plurality of engagement holes 7 and 8 through which the pair of leg portions of the binding line are inserted and engaged in parallel along one side and across the central portion. is there. Also in the shapes of the engagement holes 7 and 8, the enlarged diameter portions 7a and 8a are formed in a trumpet shape so that the leg portions of the binding wire can be easily inserted through the lower side opening portion, and the first embodiment is concerned. The same as the binding device. In addition, as a shape about the winding members 4 and 9, an elliptical cylinder may be sufficient besides a cylinder and a prism.

  An example of the binding wire 15 used in these binding devices 1 and 11 is shown in FIG. The binding wire 15 uses an annealed wire having a diameter of about 2.0 to 3.5 mm, or cuts an annealed plate having a thickness of about 2.0 to 3.5 mm at intervals of 2.0 to 3.5 mm. A square rod-shaped wire rod is used, and the entire contour is processed into a human shape or a kokeshi shape. An annealed wire or an annealed plate is used as it is, with the entire surface having a black skin (an oxide film that plays a role of rust prevention), and the annealed wire or square rod-like wire is, for example, molded. It is formed by processing or the like.

  As shown in the figure, the entire outline is human-shaped or kokeshi-shaped, which is formed in a loop part 15a having a head outline into which a crossing part of reinforcing bars is fitted in advance and a pair of legs 15b extending from the loop part 15a. The end portions of the pair of leg portions 15b are formed so as to be slightly opened from each other. This is for facilitating the work of attaching or fitting the binding wire 15 to the crossing portion of the reinforcing bar, and after attaching, the leg portion 15b is picked from both sides so as to be in a substantially parallel state as indicated by the virtual lines, 11 are inserted into the engagement holes 7 and 8 of the winding members 4 and 9, respectively.

  A bundling apparatus having the above-described configuration and a bundling method using a bundling wire will be described with reference to FIGS. In addition, the example using the binding apparatus 1 which concerns on 1st Embodiment is demonstrated, Since description about the binding apparatus 11 which concerns on 2nd Embodiment is substantially the same, it abbreviate | omits.

  First, in a state where the auxiliary muscles 21 having a required distance of 15 mm are placed on the upper part of the main muscles 20 having a diameter of 30 mm arranged at a required interval, the diameter from the main muscle side 20 at the intersection of the main muscles 20 and the auxiliary muscles 21. Is attached with a 3 mm binding wire 15, the loop portion 15 a of the binding wire 15 holds the crossing portion of the main muscle 20 and the auxiliary muscle 21, and the pair of leg portions 15 b in an open state are grasped from both sides to be substantially parallel. In this state, the pair of legs 15b are inserted into the engagement holes 7 and 8 of the winding member 4 of the bundling device 1, and the end surfaces of the legs 15b are brought into contact with the stopper member 5. (See FIG. 7).

  At this time, since the enlarged diameter portions 7a and 8a are formed in a trumpet shape in the lower openings of the engagement holes 7 and 8, the pair of leg portions 15b of the binding wire 15 are expanded diameter portions 7a and 8a. It is guided and easily inserted into the engagement holes 7 and 8. In addition, since the space | interval of at least the winding member 4 and the auxiliary | assistant bar 21 needs to be about 10-15 mm when forming a twist part, the position of the stopper member 5 is adjusted according to it beforehand. If it is narrower than this, the binding wire 15 may be twisted off by one unreasonable twist.

  In this state, when the handle 2 of the bundling device 1 is rotated, for example, once in the right direction, a one-time twisted portion is formed between the winding member 4 and the auxiliary reinforcement 21. This first twisted portion is formed by tightening the loop portion 15a of the binding wire 15 that is substantially redundant by the twisting action, so that the binding wire 15 temporarily crosses the intersection of the main muscle 20 and the auxiliary muscle 21. It is positioned so as to be tightened (see FIG. 8).

  Subsequently, the handle 2 is further rotated in the right direction to form the second and third twisted portions. However, an excessive amount for forming a twisted portion between the winding member 4 and the auxiliary bar 21 is provided. Since there is no binding wire 15, the binding device 1 is slightly lifted (about 10 mm), the pair of leg portions 15 b are extended to the lower part of the winding member 4, and then the handle 2 is rotated once to turn the second twist. After forming the portion, the bundling device 1 is further lifted slightly to bring out the required length of the pair of leg portions 15b to the lower part of the winding member 4 in the same manner as described above, and then the pair of leg portions 15b are twisted together to form the third twist. A part is formed.

  By forming a plurality of twisted portions in this way, the binding wire 15 is tightened, and the intersection between the main muscle 20 and the auxiliary muscle 21 is strongly tightened and bound. The twisted portion can be formed even if it is twisted twice. However, it is preferable to form the twisted portion three times from the viewpoint of safety.

  After forming and twisting a plurality of twisted portions, the binding device 1 is lifted upward and detached so that the leg portions 15b are pulled out from the engagement holes 7 and 8 of the winding member 4, and the binding operation is completed. However, in such a binding state, the twisted portion of the binding wire 15 and the pair of leg portions 15b are in an upright state, which is dangerous in terms of work, so before pulling the binding device 1 upward, The bundling device 1 is tilted about 90 degrees in the horizontal direction and then pulled out in the horizontal direction.

  Thus, since the twisted portion and the leg portion 15b are oriented approximately 90 degrees laterally by tilting the bundling device 1 in the lateral direction, there is no danger in work, and winding is performed by tilting in the lateral direction. The leg portions 15b inserted and engaged in the engagement holes 7 and 8 of the member 4 are easily pulled out because the torsional portion forming action weakens the rigidity that they are attracted to the inside (twisted portion side). This is very advantageous in combination with danger avoidance (see FIG. 9).

  Further, in the bundling device 11 according to the second embodiment, the use thereof is the same as that of the bundling device 1 according to the first embodiment, but the winding members 4 and 9 are used in any bundling device. Since the openings of the engagement holes 7 and 8 that engage and twist the leg portions 15b of the binding wire 15 are worn, there arises a situation that these winding members 4 and 9 must be replaced occasionally.

  Therefore, in particular, the auxiliary component (adapter) 23 shown in FIGS. 10 to 11 is used for the winding member 9 of the bundling device 11 according to the second embodiment.

  The auxiliary component 23 uses a metal steel plate having a thickness of about 5 mm, and the flat plate portion 24 and the rising wall 25 are integrally formed. The upper surface of the flat plate portion 24 matches the shape of the lower surface of the winding member 9. The rising wall 25 is formed so as to be in contact with one side surface of the long side of the winding member 9 and to be detachable via an attachment member 26 such as a screw.

  The flat plate portion 24 is provided with second engagement holes 27 and 28 at positions coincident with the engagement holes 7 and 8 of the winding member 9, and a trumpet is provided at the lower peripheral edge portion of the second engagement holes 27 and 28. The enlarged diameter portions 27a and 28a are formed. In addition, a necessary depth curling portion 29 is formed in a bowl shape between the enlarged diameter portions 27a and 28a, and the scooping portion 29 is, for example, wound around the binding wire 15 in a state of crossing the intersection of the reinforcing bars. When bundling, it is effective in the sense of avoiding the twisted portion protruding from the upper part of the binding wire that has been wound up earlier. However, this is not always necessary.

  By attaching and using the auxiliary component 23 formed in this way on the lower surface side of the winding member 9, the second portion is engaged and disengaged with the leg portion 15b and the torsional load by the tightening operation of the binding wire 15. When the engagement holes 27 and 28 are worn, the mounting member 26 such as a screw can be removed and easily replaced with a new auxiliary component 23 prepared in advance.

  In any case, in the bundling method according to the present invention, in particular, in the formation of the reinforcing bar braided body, in order to obtain a stable strength when the thickness of the reinforcing bar is increased, the thickness of the binding line is necessarily increased. It is necessary to use a bundling device having a configuration specified at such time, and use a bundling line consisting of a loop portion and a pair of legs, and fit it into the intersection of reinforcing bars or It can be easily and firmly bound by inserting and engaging the leg part into the engagement hole provided in the winding member of the binding device, and twisting the leg part together. Can be applied.

  In the bundling device of the present invention, since the handle is attached to the top of the rod and the winding member having a plurality of engagement holes is attached to the lower end, the light weight and the form are convenient. In particular, even if the thickness of the reinforcing bar exceeds 20-30 mm and the diameter of the binding wire correspondingly exceeds 2.0-3.0 mm, the pair of leg portions of the binding wire are engaged with the engagement holes. If the handle is turned and engaged, the legs can be easily twisted together, and it can be widely used in the binding work of rebar braids that must use thick binding wires for thick reinforcing bars. is there.

It is the side view which showed the binding apparatus which concerns on the 1st Embodiment of this invention. It is the bottom view which showed the binding apparatus. It is the side view which showed the binding apparatus which concerns on the 2nd Embodiment of this invention. It is the bottom view which showed the binding apparatus. It is a top view which shows the binding line used for the binding apparatus of this invention. It is explanatory drawing which shows roughly the use condition of the binding apparatus which concerns on 1st Embodiment. It is a partially broken side view which shows the engagement state with the binding wire in the use condition of the binding apparatus. It is a partially broken side view which shows the initial twist state of the binding wire in the use condition of the binding apparatus. It is explanatory drawing which shows schematically the final state which bound the reinforcing bar with the binding wire using the binding apparatus. It is the schematic perspective view which looked at the auxiliary component which can be used for the binding apparatus which concerns on the 2nd Embodiment of this invention from the downward direction. It is sectional drawing of the principal part which shows the state which attached the auxiliary component to the winding member of the binding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Bundling device 2 Handle 2a Retaining prevention member 3 Rod 3a Head 3b Screw thread 4, 9 Winding member 4a, 9a Connection member 5 Stopper member 6 Wing nut 7, 8 Engagement hole 7a, 8a Expanding portion 15 Bundling Wire 15a Loop part 15b Leg part 20 Main reinforcement 21 Auxiliary reinforcement 23 Auxiliary part 24 Flat plate part 25 Standing wall 26 Mounting member 27, 28 Second engagement hole 27a, 28a Expanding part 29 Turning part

Claims (6)

The binding wire winding handle is attached to the top of the rod, and has a T-shape in which a winding member having a plurality of engagement holes into which the legs of the binding wire are inserted and engaged is attached to the lower end of the rod. Using a binding device,
At the intersection of the reinforcing bars, attach a binding line consisting of a loop part and a pair of leg parts whose outlines are human or kokeshi-shaped,
A pair of legs of the attached binding wire is inserted and held in the engagement holes of the winding member,
A method for binding reinforcing bars, comprising: rotating the handle in a required direction and twisting a pair of legs of a binding wire to form a twisted portion a plurality of times, and fastening the intersection of reinforcing bars with a binding wire . The binding method according to claim 1, wherein the binding wire is attached from a main muscle side of a reinforcing bar to be bound. 3. The leg of the binding wire is detached from the engagement hole after the binding device is tilted laterally after the crossing portion of the reinforcing bars is fastened and bound with the binding wire. 4. The bundling method described. A handle for tying the binding wire,
A rod with the handle attached to the top;
A winding member attached to the lower end of the rod and having a plurality of engagement holes through which the legs of the binding wire attached to the intersection of the reinforcing bars are inserted and engaged;
A reinforcing bar, comprising: a stopper member that abuts a pair of leg portions of the inserted binding wire in the vicinity of an intermediate portion of the rod, and that can be adjusted in position according to the thickness of the reinforcing bar and the length of the leg portion. Binding device. The reinforcing bar binding device according to claim 1, wherein the lower end opening of the engagement hole of the winding member is expanded in a trumpet shape. The bundling device according to any one of claims 4 to 5, wherein auxiliary components having a plurality of second engagement holes are detachably disposed on a lower surface side of the winding member.

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