Binding equipment and binding machine

Abstract

To provide binding equipment capable of discharging foreign matter inside a reinforcing bar binding machine to the outside.SOLUTION: A reinforcing bar binding machine applied to binding equipment 1A includes a curl forming portion 5A which is exposed at the upper portion of a main body portion 10A and constitutes a path for winding a wire around a reinforcing bar, a wire locking body 70 which is provided inside the main body portion 10A, locks the wire wound around the reinforcing bar, and twists the wire wound around the reinforcing bar by rotating it, a wire engaging body exposed portion 93 which communicates with an opening provided in the upper portion of the main body portion 10A and exposes a portion of the wire engaging body 70 within the main body portion 10A, and a discharge portion 94 for discharging foreign matter inside the wire engaging body exposed portion 93 to the outside of the main body portion 10A.SELECTED DRAWING: Figure 2A

Description

Technical Field

[0001] The present invention relates to a binding facility and a binding machine for binding objects to be bound, such as reinforcing bars, with a wire.

Background Art

[0002] Reinforcing bars are used in concrete structures to improve strength, and are bound with wires so that the reinforcing bars do not shift from their predetermined positions during concrete placement.

[0003] Conventionally, a binding machine called a reinforcing bar binding machine has been proposed, which is manually held by an operator to wind a wire around two or more reinforcing bars and twist the wire wound around the reinforcing bars to bind the two or more reinforcing bars with the wire (see, for example, Patent Document 1).

[0004] In addition, a technique applied to facility equipment for installing and using a reinforcing bar binding machine has been proposed (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] In a configuration in which a binding machine is applied to facility equipment, since the binding machine is configured to bind reinforcing bars from below, the binding machine is always used upward. For this reason, foreign matters attached to the reinforcing bars, shaving chips generated by rubbing of the wire, foreign matters such as inadvertently cut wires are likely to enter the inside of the binding machine. In addition, even in a binding machine that is manually held and used, foreign matters generated inside the binding machine, such as shaving chips generated by rubbing of the wire and inadvertently cut wires, enter the machine. When foreign matters accumulate inside the binding machine, it becomes a cause of malfunction.

[0007] The present invention has been made to solve such problems, and an object thereof is to provide a bundling facility and a bundling machine capable of discharging foreign matter inside the bundling machine to the outside.

Means for Solving the Problems

[0008] To solve the above-described problems, the present invention includes a bundling machine that bundles an object to be bundled with a wire, a housing portion that accommodates the wire so that it can be drawn out, and a wire feeding mechanism that draws out the wire accommodated in the housing portion. The bundling machine includes a main body portion, a wire feeding portion provided inside the main body portion for feeding the wire drawn out from the housing portion, a curl forming portion provided exposed on the upper portion of the main body portion for forming a path for winding the wire fed by the wire feeding portion around the object to be bundled, a wire locking body provided inside the main body portion for locking the wire wound around the object to be bundled, a bundling portion for twisting the wire wound around the object to be bundled by rotating the wire locking body, a wire locking body exposure portion that communicates with an opening provided in the upper portion of the main body portion and exposes a part of the wire locking body covered by the main body portion inside the main body portion, and a discharging means for discharging foreign matter inside the wire locking body exposure portion to the outside of the main body portion. , the discharging means is configured by providing an opening communicating with the wire locking body exposure part on the side part of the main body part It is a bundling facility.

[0009] Further, the present invention includes a main body portion, a wire feeding portion provided inside the main body portion for feeding the wire drawn out from the housing portion, a curl forming portion provided exposed on the front portion of the main body portion for forming a path for winding the wire fed by the wire feeding portion around the object to be bundled, a wire locking body provided inside the main body portion for locking the wire wound around the object to be bundled, a bundling portion for twisting the wire wound around the object to be bundled by rotating the wire locking body, a wire locking body exposure portion that communicates with an opening provided in the front portion of the main body portion and exposes a part of the wire locking body covered by the main body portion inside the main body portion, and a discharging means for discharging foreign matter inside the wire locking body exposure portion to the outside of the main body portion. , the discharging means is configured by providing an opening communicating with the wire locking body exposure part on the side part of the main body part It is a bundling machine.

Effects of the Invention

[0010] In the present invention, foreign matter that has entered from the opening into the exposed portion of the wire locking body in the bundling machine and foreign matter generated within the exposed portion of the wire locking body can be discharged to the outside of the main body portion.

Brief Description of the Drawings

[0011]

Figure 1A

Figure 1B

Figure 2A

Figure 2B

Figure 2C

Figure 3A

Figure 3B

Figure 3C

Figure 3D

Figure 3E

Figure 4A

Figure 4B

Figure 4C

Figure 5

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 8A

Figure 8B

Figure 9A

Figure 9B

[0012] Hereinafter, with reference to the drawings, embodiments of the binding facility of the present invention, and a steel bar binding machine as an embodiment of the binding machine used in the binding facility, and a steel bar binding machine as an embodiment of the binding machine used by hand will be described.

[0013] <Configuration example of the binding facility of the present embodiment> FIG. 1A is a side view showing an example of the binding facility of the present embodiment, and FIG. 1B is a perspective view showing an example of the binding facility of the present embodiment.

[0014] The binding facility 100A of the present embodiment includes a steel bar binding machine 1A that binds steel bars S, which are objects to be bound, with a wire W, a reel housing portion 21 in which the wire W is retractably housed, and a wire feeding mechanism 2A that pulls out the wire W housed in the reel housing portion 21. The steel bar binding machine 1A is attached to the elevating mechanism 111A and supported by the base portion 112A so as to be movable (elevating) in the vertical direction, which is a direction intersecting the arrangement surface of the steel bars S.

[0015] The reel housing portion 21 is an example of a housing portion, and the reel 20 around which the wire W is wound so as to be pullable is rotatably and detachably housed. The wire W is a wire made of a metal wire capable of plastic deformation, a wire in which the metal wire is coated with resin, or a stranded wire. The reel 20 has one wire W wound around a hub portion (not shown), and the wire W can be pulled out from the reel 20.

[0016] In this example, the reel housing portion 21 is for binding the reinforcing bar S with two wires W in the reinforcing bar tying machine 1A, and two reels 20 are housed side by side along the axial direction with the axis of rotation being horizontal with respect to the vertical direction.

[0017] The wire feeding mechanism 2A includes a wire pulling mechanism 22 that feeds the wire W between the reinforcing bar tying machine 1A and the reel 20, a first wire guiding portion 23 that guides the wire W between the reel 20 and the wire pulling mechanism 22, and a second wire guiding portion 24 that guides the wire W between the reinforcing bar tying machine 1A and the wire pulling mechanism 22.

[0018] The wire pulling mechanism 22 includes a pulling roller 22a that pulls the wire W between the first wire guiding portion 23 and the second wire guiding portion 24, and a driving portion 22b that moves the position of the pulling roller 22a in a direction intersecting the wire W between the first wire guiding portion 23 and the second wire guiding portion 24. The pulling roller 22a moves between an upper limit position P1 as a first position in the standby position and a lower limit position P2 as a second position for pulling the wire W when the driving portion 22b is driven by the motor 22c.

[0019] The wire pulling mechanism 22 makes the pulling roller 22a contact the wire W from above between the first wire guiding portion 23 and the second wire guiding portion 24 and move from the upper limit position P1 to the lower limit position P2, thereby applying a pulling force to the wire W between the reel 20 and the first wire guiding portion 23 and the wire W between the reinforcing bar tying machine 1A and the second wire guiding portion 24 to pull them between the first wire guiding portion 23 and the second wire guiding portion 24.

[0020] The first wire guiding portion 23 includes rollers 23a, 23b, and 23c on the upstream side of the wire drawing mechanism 22 with respect to the feeding direction of the wire W fed from the reel 20 accommodated in the reel accommodating portion 21 to the steel bar tying machine 1A. The first wire guiding portion 23 guides the path along which the wire W drawn from the reel 20 accommodated in the reel accommodating portion 21 is fed, in the direction of roller 23a by roller 23b, and then in the direction of the second wire guiding portion 24 by roller 23a.

[0021] The second wire guiding portion 24 includes a roller 24a on the downstream side of the wire drawing mechanism 22. The second wire guiding portion 24 guides the path along which the wire W is fed, in the direction of the steel bar tying machine 1A by roller 24a.

[0022] The rollers 23a and 23b of the first wire guiding portion 23 are provided at substantially the same height with respect to the vertical direction and contact the wire W from below. Also, the roller 24a of the second wire guiding portion 24 is provided at substantially the same height with respect to the vertical direction as the rollers 23a and 23b of the first wire guiding portion 23 and contacts the wire W from below.

[0023] Furthermore, the roller 23c of the first wire guiding portion 23 is provided below the rollers 23a and 23b in the vertical direction, between the roller 23a and the roller 23b. The roller 23c contacts the wire W from above and bends the feeding path of the wire W along the rollers 23a and 23b.

[0024] Thereby, the contact angle (length) between the rollers 23a, 23b, and 23c of the first wire guiding portion 23 and the wire W increases with respect to the contact angle (length) between the roller 24a of the second wire guiding portion 24 and the wire W.

[0025] The rollers 23a, 23b, and 23c of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 rotate following the feeding of the wire W, and the longer the contact angle (length) between the roller and the wire, the greater the load applied to the wire W.

[0026] Therefore, the load applied to the wire W induced by the first wire guiding portion 23 is greater than the load applied to the wire W induced by the second wire guiding portion 24, and the first load > the second load.

[0027] In the wire drawing mechanism 22, the drawing roller 22a at the upper limit position P1 contacts the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 from above, which is the side opposite to the side where the rollers 23a and 24a contact. The wire drawing mechanism 22 moves from the upper limit position P1 to the lower limit position P2 in a direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

[0028] Thereby, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward by the drawing roller 22a. Then, the wire W between the steel bar bundling machine 1A and the second wire guiding portion 24 and the wire W between the first wire guiding portion 23 and the reel 20 housed in the reel housing portion 21 are sent between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

[0029] At this time, depending on whether the load applied to the wire W induced by the first wire guiding portion 23 is greater than or less than the load applied to the wire W induced by the second wire guiding portion 24, it is switched whether the wire W on the first wire guiding portion 23 side is sent or the wire W on the second wire guiding portion 24 side is sent.

[0030] <Configuration example of the steel bar bundling machine according to the present embodiment> Figures 2A and 2B are side views showing an example of the steel bar tying machine of the present embodiment, and Figure 2C is a top view of the main part showing an example of the steel bar tying machine of the present embodiment. Further, Figures 3A to 3C are perspective views of the main part showing an example of the steel bar tying machine of the present embodiment, Figures 3D and 3E are side views of the main part showing an example of the steel bar tying machine of the present embodiment, and Figures 4A to 4C are perspective views of the main part showing an example of the steel bar tying machine of the present embodiment. Note that Figures 4A to 4C are those with some parts omitted compared to Figures 3A to 3C. Furthermore, Figure 5 is a side view of the main part showing an example of the internal configuration of the steel bar tying machine of the present embodiment.

[0031] The steel bar tying machine 1A is an example of a tying machine. As shown in Figure 5, it feeds the wire W in the positive direction indicated by the arrow F, winds it around the two intersecting steel bars S, sends the wire W wound around the steel bars S in the reverse direction indicated by the arrow R and winds it around the steel bars S, then twists the wire W to tie the steel bars S with the wire W.

[0032] In order to realize the above-described functions, the steel bar tying machine 1A includes a wire feeding section 3A that feeds the wire W in the positive and reverse directions, and a wire guide 4A that guides the wire W fed to the wire feeding section 3A. Further, the steel bar tying machine 1A includes a curl forming section 5A that forms a path for winding the wire W fed by the wire feeding section 3A around the steel bars S, and a cutting section 6A that cuts the wire W wound around the steel bars S. Furthermore, the steel bar tying machine 1A includes a tying section 7A that twists the wire W wound around the steel bars S, and a driving section 8A that drives the tying section 7A.

[0033] As described above, the steel bar tying machine 1A applied to the tying facility 100A moves in the vertical direction, which is the direction intersecting the arrangement surface of the steel bars S, and the steel bars S are inserted into and taken out of the curl forming section 5A. For this reason, the steel bar tying machine 1A is upward-facing with the curl forming section 5A located at the upper end (upper part) of the main body section 10A and is attached to the elevating mechanism 111A. Hereinafter, in the steel bar tying machine 1A, the side where the curl forming section 5A is provided is regarded as the upper side.

[0034] The wire feeding section 3A is provided inside the main body section 10A and includes a pair of feeding gears 30 that sandwich and feed one or a plurality of parallel wires W. In the wire feeding section 3A, the pair of feeding gears 30 are biased in a direction approaching each other, and the rotational movement of a feeding motor (not shown) is transmitted so that the feeding gears 30 rotate. As a result, the wire feeding section 3A feeds the wire W sandwiched between the pair of feeding gears 30 along the extending direction of the wire W. In a configuration where a plurality of wires W, for example, two wires W are fed, the two wires W are fed in a parallel state.

[0035] The steel bar bundling machine 1A includes a discharge section 31 in the main body section 10A that discharges foreign matter inside the wire feeding section 3A to the outside of the main body section 10A. The discharge section 31 is configured by providing openings communicating with a space into which a pair of feeding gears 30 and the like enter on at least one side portion of the main body section 10A, in this example, both side portions.

[0036] The wire guide 4A is provided inside the main body section 10A at a predetermined position on the upstream side of the wire feeding section 3A with respect to the feeding direction for feeding the wire W in the positive direction. In a configuration where two wires W are fed, the wire guide 4A regulates the radial directions of the two wires W, aligns the two entering wires W in parallel, and guides them between the pair of feeding gears 30.

[0037] The wire guide 4A has a shape such that the opening on the downstream side with respect to the feeding direction of the wire W fed in the positive direction regulates the radial direction of the wire W. On the other hand, the opening on the upstream side with respect to the feeding direction of the wire W fed in the positive direction has a larger opening area than the opening on the downstream side. For example, the wire guide 4A is configured by a tapered opening that maximizes the opening area on the introduction side of the wire W sent from the wire feeding mechanism 2A shown in FIGS. 1A and 1B and gradually reduces the opening area therefrom. Thereby, even if the height or orientation of the steel bar bundling machine 1A changes, the wire W sent by the wire feeding mechanism 2A can be guided between the pair of feeding gears 30.

[0038] The curl forming section 5A includes a curl guide 50 that imparts a curl to the wire W fed by the wire feeding section 30, and a guiding guide 51 that guides the wire W with the curl imparted by the curl guide 50 to the binding section 7A. The curl forming section 5A is provided such that the curl guide 50 and the guiding guide 51 are exposed on the upper portion of the main body section 10A.

[0039] In the steel bar binding machine 1A, the feeding path of the wire W fed by the wire feeding section 3A is regulated by the curl forming section 5A, so that the locus of the wire W becomes a loop Ru as shown by the dashed line in Fig. 5, and the wire W is wound around the steel bar S.

[0040] The curl forming section 5A includes guide members 53a and 53b that guide the wire W fed in the forward direction and impart a curl to the wire W. The guide member 53a is provided on the introduction section side of the wire W fed by the wire feeding section 3A in the curl guide 50, and is disposed inside the loop Ru formed by the wire W in the radial direction. The guide member 53b is provided on the discharge section side of the wire W fed by the wire feeding section 3A in the curl guide 50, and is disposed outside the loop Ru formed by the wire W in the radial direction.

[0041] The curl forming section 5A includes a guide member moving mechanism 54A that retracts the guide member 53a. The guide member moving mechanism 54A retracts the guide member 53a in conjunction with the operation of the binding section 7A after the wire W is wound around the steel bar S.

[0042] The cutting section 6A is provided inside the main body section 10A, and includes a fixed blade section 60, a movable blade section 61 that cuts the wire W in cooperation with the fixed blade section 60, and a transmission mechanism 62 that transmits the operation of the binding section 7A to the movable blade section 61. The cutting section 6A cuts the wire W by the rotational movement of the movable blade section 61 with the fixed blade section 60 as the fulcrum shaft. The transmission mechanism 62 transmits the operation of the binding section 7A to the movable blade section 61 via the moving member 83, rotates the movable blade section 61 in conjunction with the operation of the binding section 7A, and cuts the wire W.

[0043] The end portion 7A is provided inside the main body portion 10A and includes a wire locking body 70 to which the wire W is locked. The detailed configuration of the end portion 7A will be described later. The drive portion 8A is provided inside the main body portion 10A and includes a motor 80 and a speed reducer 81 that performs speed reduction and torque amplification.

[0044] When the reinforcing bar tying machine 1A in a form that can be held and used by an operator is applied to the tying facility 100A, the main body portion 10A is provided with a handle portion 11A, and a battery 15A is detachably attached to the handle portion 11A.

[0045] The reinforcing bar tying machine 1A is provided with a feed restricting portion 90 against which the tip of the wire W is abutted in the feed path of the wire W that is wound around the reinforcing bar S through the curl forming portion 5A and locked by the wire locking body 70.

[0046] Further, the reinforcing bar tying machine 1A is provided with an abutting portion 91 against which the reinforcing bar S is abutted on the upper portion of the main body portion 10A. The abutting portion 91 is provided in a pair on the left and right between the curl guide 50 and the guiding guide 51.

[0047] Furthermore, the reinforcing bar tying machine 1A is provided with an opening 92 on the upper portion of the main body portion 10A. The opening 92 is provided between the path through which the wire W that passes through the wire locking body 70 and is sent to the curl guide 50 and the path through which the wire W that passes through the guiding guide 51 and is sent to the wire locking body 70, between a pair of left and right abutting portions 91.

[0048] In the operation of feeding the wire W in the forward direction, the opening 92 allows the wire W that passes through the wire locking body 70 and is sent to the curl guide 50 and the wire W that passes through the guiding guide 51 and is sent to the wire locking body 70 to pass through. In the operation of feeding the wire W in the reverse direction, the opening 92 allows the wire W wound around the reinforcing bar S inserted between the curl guide 50 and the guiding guide 51 to pass through. In the operation of separating the reinforcing bar tying machine 1A from the reinforcing bar S after the tying is completed, the opening 92 allows the tied wire W to pass through. Also, in the operation of removing the reinforcing bar S from between the curl guide 50 and the guiding guide 51, the opening 92 allows the wire W that has tied the reinforcing bar S to pass through.

[0049] The wire locking body exposure part 93 is provided inside the main body part 10A inside the opening 92. The wire locking body exposure part 93 is constituted by a space inside the upper part of the main body part 10A partitioned by a wall part 93a and communicates with the opening 92.

[0050] A part of the wire locking body 70 is exposed inside the main body part 10A from a hole part 93b provided on the bottom surface constituting the wall part 93a of the wire locking body exposure part 93. The wire locking body exposure part 93 constitutes a path through which the wire W locked by the wire locking body 70 is sent, and constitutes a space necessary for the operation of twisting the wire W locked by the wire locking body 70.

[0051] The steel bar tying machine 1A is provided with a discharge part 94 for discharging foreign matters in the wire locking body exposure part 93 to the outside of the main body part 10A. The discharge part 94 is an example of a discharging means and is configured by providing openings communicating with the wire locking body exposure part 93 on at least one side part of the main body part 10A, in this example, both side parts.

[0052] The discharge part 94 is provided with a discharge guiding part 94a on at least the bottom surface which is one surface located inside and lower side of the wall part 93a constituting the wire locking body exposure part 93. In the steel bar tying machine 1A used in the tying facility 100A, the bottom surface in the wall part 93a constituting the wire locking body exposure part 93 is a surface located on the lower side in the form in which the steel bar tying machine 1A is used upward. The discharge guiding part 94a is configured by connecting at least a part of the bottom surface constituting the wall part 93a and the side of the opening constituting the discharge part 94 on the same surface. Note that the discharge guiding part 94a may be configured by an inclined surface inclined in the descending direction from the hole part 93b toward the discharge part 94. Also, for other wall parts 93a than the bottom surface, the discharge guiding part 94a is configured by connecting at least a part of the wall part 93a and the side of the discharge part 94 on the same surface.

[0053] FIG. 6A and FIG. 6B are cross-sectional plan views showing an example of a tying part. Next, with reference to each figure, the configuration of the tying part will be described.

[0054] The end portion 7A includes a wire locking body 70 to which the wire W is locked and a rotating shaft 72 for operating the wire locking body 70. The end portion 7A and the drive portion 8A are connected such that the rotating shaft 72 and the motor 80 are connected via a speed reducer 81, and the rotating shaft 72 is driven by the motor 80 via the speed reducer 81.

[0055] The wire locking body 70 includes a center hook 70C connected to the rotating shaft 72, a first side hook 70R and a second side hook 70L that open and close with respect to the center hook 70C, and a sleeve 71 that operates the first side hook 70R and the second side hook 70L and forms the wire W into a desired shape.

[0056] The center hook 70C is connected to the tip of the rotating shaft 72, which is one end along the axial direction of the rotating shaft 72, via a configuration that is rotatable with respect to the rotating shaft 72 and is axially movable integrally with the rotating shaft 72.

[0057] The wire locking body 70 opens and closes in a direction in which the tip side of the first side hook 70R separates from and contacts the center hook 70C by a rotational movement about the shaft 71b as a fulcrum. Also, the tip side of the second side hook 70L opens and closes in a direction in which it separates from and contacts the center hook 70C.

[0058] The sleeve 71 has a convex portion (not shown) protruding from the inner peripheral surface of the space into which the rotating shaft 72 is inserted, and this convex portion fits into a groove portion of a feed screw 72a formed along the outer periphery of the rotating shaft 72 in the axial direction. When the rotating shaft 72 rotates, the sleeve 71 moves in the vertical direction, which is the direction along the axial direction of the rotating shaft 72, according to the rotation direction of the rotating shaft 72 due to the action of the convex portion (not shown) and the feed screw 72a of the rotating shaft 72. Also, the sleeve 71 rotates integrally with the rotating shaft 72.

[0059] The sleeve 71 includes an opening and closing pin 71a for opening and closing the first side hook 70R and the second side hook 70L.

[0060] The opening and closing pin 71a is inserted into the opening and closing guide holes 73 provided in the first side hook 70R and the second side hook 70L. The opening and closing guide holes 73 extend along the moving direction of the sleeve 71, and convert the linear movement of the opening and closing pin 71a that moves in conjunction with the sleeve 71 into an opening and closing operation by the rotation of the first side hook 70R and the second side hook 70L with the shaft 71b as a fulcrum.

[0061] When the sleeve 71 moves downward as indicated by the arrow A2, the wire locking body 70 causes the first side hook 70R and the second side hook 70L to move away from the center hook 70C in a rotational motion with the shaft 71b as a fulcrum, due to the trajectory of the opening and closing pin 71a and the shape of the opening and closing guide holes 73.

[0062] As a result, the first side hook 70R and the second side hook 70L open with respect to the center hook 70C, and a feeding path through which the wire W passes is formed between the first side hook 70R and the center hook 70C, and between the second side hook 70L and the center hook member 70C.

[0063] When the first side hook 70R and the second side hook 70L are open with respect to the center hook 70C, the wire W fed by the wire feeding unit 3A passes between the center hook 70C and the first side hook 70R. The wire W passing between the center hook 70C and the first side hook 70R is guided to the curl forming unit 5A. Then, the wire W that is curled at the curl forming unit 5A and guided to the binding unit 7A passes between the center hook 70C and the second side hook 70L.

[0064] When the sleeve 71 moves upward as indicated by the arrow A1, the wire locking body 70 causes the first side hook 70R and the second side hook 70L to move closer to the center hook 70C in a rotational motion with the shaft 71b as a fulcrum, due to the trajectory of the opening and closing pin 71a and the shape of the opening and closing guide holes 73. As a result, the first side hook 70R and the second side hook 70L close with respect to the center hook 70C.

[0065] When the first side hook 70R closes with respect to the center hook 70C, the wire W sandwiched between the first side hook 70R and the center hook 70C is locked in a form that allows it to move between the first side hook 70R and the center hook 70C. Also, when the second side hook 70L closes with respect to the center hook 70C, the wire W sandwiched between the second side hook 70L and the center hook 70C is locked in a form that prevents it from slipping out between the second side hook 70L and the center hook 70C.

[0066] The sleeve 71 includes a bending portion 71c1 that forms the wire W into a predetermined shape by pushing and bending the tip side, which is one end of the wire W, in a predetermined direction, and a bending portion 71c2 that forms the wire W into a predetermined shape by pushing and bending the terminal side, which is the other end of the wire W cut by the cutting portion 6A, in a predetermined direction.

[0067] By moving upward in the direction indicated by the arrow A1, the sleeve 71 pushes the tip side of the wire W locked by the center hook 70C and the second side hook 70L with the bending portion 71c1 and bends it toward the reinforcing bar S side. Also, by moving upward in the direction indicated by the arrow A1, the sleeve 71 pushes the terminal side of the wire W locked by the center hook 70C and the first side hook 70R and cut by the cutting portion 6A with the bending portion 71c2 and bends it toward the reinforcing bar S side.

[0068] The bundling portion 7A includes a rotation restricting portion 74 that restricts the rotation of the wire locking body 70 and the sleeve 71 interlocked with the rotation operation of the rotation shaft 72. The bundling portion 7A. Depending on the position of the sleeve 71 along the axial direction of the rotation shaft 72, the rotation restricting portion 74 restricts the rotation of the sleeve 71 interlocked with the rotation of the rotation shaft 72, and the sleeve 71 moves in the vertical direction by the rotation operation of the rotation shaft 72. Also, when the restriction on the rotation of the sleeve 71 by the rotation restricting portion 74 is released, the sleeve 71 rotates in conjunction with the rotation of the rotation shaft 72.

[0069] As shown in FIGS. 2A, 2B, 3A to 3C, the wire locking body 70 has a center hook 70C, a first side hook 70R, a second side hook 50L, and a tip side of the sleeve 71 exposed from a hole 93b provided in the bottom surface constituting the wall portion 93a of the wire locking body exposed portion 93.

[0070] Thereby, the wire locking body exposed portion 93 forms a path through which the wire W passing through the cutting portion 6A and sent between the center hook 70C and the first side hook 70R, the wire W passing between the center hook 70C and the first side hook 70R and sent to the curl forming portion 5A, the wire W curled at the curl forming portion 5A, the wire W sent between the center hook 70C and the second side hook 70L, and the wire W hitting against the feed restricting portion 90 after passing between the center hook 70C and the second side hook 70L pass.

[0071] <Operation example of the bundling equipment of the present embodiment> FIGS. 7A and 7B are operation explanatory diagrams showing an example of the operation of binding a reinforcing bar with a reinforcing bar binding machine in the bundling equipment. Next, with reference to each figure, the operation of binding the reinforcing bar S with the wire W by the reinforcing bar binding machine 1A in the bundling equipment 100A will be described.

[0072] The bundling equipment 100A moves the reinforcing bar S so that the intersecting bundling target portion of the reinforcing bar S is in a position facing the curl forming portion 5A of the reinforcing bar binding machine 1A, and moves the reinforcing bar binding machine 1A so that the bundling target portion of the reinforcing bar S enters between the curl guide 50 and the guide guide 51 of the curl forming portion 5A.

[0073] The reinforcing bar binding machine 1A drives a feed motor (not shown) in the normal rotation direction, and feeds the wire W in the positive direction indicated by the arrow F by the wire feeding portion 3A. In the wire feeding portion 3A, two wires W are fed in a state of being arranged in parallel along the axial direction of the loop Ru formed by the wire W.

[0074] The wire W sent in the positive direction passes between the center hook 70C and the first side hook 70R and is sent to the curl guide 50 of the curl forming portion 5A. By passing through the curl guide 50, the wire W is given a curl around the reinforcing bar S by the guide members 53a and 53b.

[0075] The wire W with a curl formed by the curl guide 50 is guided by the induction guide 51 and further sent in the positive direction by the wire feeding portion 3A, and thus is guided between the center hook 70C and the second side hook 70L by the induction guide 51. Then, the wire W is sent until its tip abuts against the feed regulation portion 90. By regulating the feed path of the wire W sent by the wire feeding portion 3A at the curl forming portion 5A, the locus of the wire W becomes a loop Ru as shown by the broken line in FIG. 7A, and the wire W is wound around the reinforcing bar S. When the tip of the wire W is sent to the position where it abuts against the feed regulation portion 90, the drive of the feed motor (not shown) is stopped.

[0076] After stopping the forward feed of the wire W, the motor 80 is driven in the forward rotation direction. In the operating range where the rotation regulating portion 74 regulates the rotation of the sleeve 71 linked to the rotation of the rotary shaft 72, the sleeve 71 moves in the direction of arrow A1 which is upward as the rotational movement of the rotary shaft 72 is converted into a linear movement.

[0077] When the sleeve 71 moves upward, the opening and closing pin 71a passes through the opening and closing guide hole 73. As a result, as shown in FIG. 6B, the first side hook 70R moves in a direction approaching the center hook 70C by a rotational movement with the shaft 71b as a fulcrum. When the first side hook 70R closes with respect to the center hook 70C, the wire W sandwiched between the first side hook 70R and the center hook 70C is locked in a form that allows it to move between the first side hook 70R and the center hook 70C.

[0078] Further, the second side hook 70L moves in a direction approaching the center hook 70C by a rotational operation with the shaft 71b as a fulcrum. When the second side hook 70L closes with respect to the center hook 70C, the wire W sandwiched between the second side hook 70L and the center hook 70C is locked in a form that does not come out from between the second side hook 70L and the center hook 70C.

[0079] After moving the sleeve 71 to the end position of the operating range for locking the wire W in the closing operation of the first side hook 70R and the second side hook 70L, the rotation of the motor 80 is temporarily stopped, and a feed motor (not shown) is driven in the reverse rotation direction. As a result, the pair of feed gears 30 reverses. Therefore, the wire W sandwiched between the pair of feed gears 30 is sent in the reverse direction indicated by the arrow R.

[0080] The wire W wound around the steel bar S and locked by the wire locking body 70 is locked in a form that the tip side portion sandwiched between the second side hook 70L and the center hook 70C does not come out from between the second side hook 70L and the center hook 70C. Further, the wire W locked by the wire locking body 70 is locked in a form that the portion sandwiched between the first side hook 70R and the center hook 70C can move in the circumferential direction of the loop Ru along the feed path of the wire W between the first side hook 70R and the center hook 70C.

[0081] As a result, the wire W wound around the steel bar S is wound around the steel bar S by the operation of sending the wire W in the reverse direction indicated by the arrow R as shown in FIG. 7B. In the operation of sending the wire W in the reverse direction by this steel bar tying machine 1A, the wire W is not sent in the reverse direction by the wire feeding mechanism 2A. For this reason, in the operation of sending the wire W in the reverse direction by the steel bar tying machine 1A, the wire W slackens between the steel bar tying machine 1A and the second wire guiding portion 24.

[0082] When the wire W is retracted to the position where it is wound around the reinforcing bar S, after stopping the driving of the feeding motor (not shown) in the reverse rotation direction, the motor 80 is driven in the forward rotation direction to move the sleeve 71 upward in the direction indicated by the arrow A1. The operation of the sleeve 71 moving upward is transmitted to the cutting portion 6A, causing the movable blade portion 61 to rotate, and the wire W locked by the first side hook 70R and the center hook 70C is cut by the operations of the fixed blade portion 60 and the movable blade portion 61.

[0083] When the wire W is cut, the bending portions 71c1 and 71c2 move in the direction of contacting the reinforcing bar S. Thereby, the tip side of the wire W locked by the center hook 70C and the second side hook 70L is pressed toward the reinforcing bar S side by the bending portion 71c1 and bent toward the reinforcing bar S side with the locking position as a fulcrum. As the sleeve 71 moves further upward, the wire W locked between the second side hook 70L and the center hook 70C is held in a state of being sandwiched by the bending portion 71c1.

[0084] Also, the terminal side of the wire W locked by the center hook 70C and the first side hook 70R and cut by the cutting portion 6A is pressed toward the reinforcing bar S side by the bending portion 71c2 and bent toward the reinforcing bar S side with the locking position as a fulcrum. As the sleeve 71 moves further upward, the wire W locked between the first side hook 70R and the center hook is held in a state of being sandwiched by the bending portion 71c2.

[0085] After bending the tip side and the terminal side of the wire W toward the reinforcing bar S side, when the motor 80 is further driven in the forward rotation direction, the sleeve 71 moves further upward. When the sleeve 71 moves to a predetermined position and reaches the operation range for twisting the wire W locked by the wire locking body 70, the rotation regulation of the sleeve 71 by the rotation regulation portion 74 is released, and the sleeve 71 rotates in conjunction with the rotation of the rotation shaft 72.

[0086] As a result, the motor 80 is further driven in the forward rotation direction, so that the wire locking body 70 rotates in conjunction with the rotating shaft 72, thereby twisting the wire W and binding the reinforcing bar S with the wire W. When it is detected that the load applied to the motor 80 reaches a predetermined value, for example, the load becomes maximum, the forward rotation of the motor 80 is stopped at a predetermined timing.

[0087] After stopping the forward rotation of the motor 80, by rotating the motor 80 in the reverse direction, the first side hook 70R opens with respect to the center hook 70C, and the second side hook 70L opens with respect to the center hook 70C. The sleeve 71 is moved downward to a position where it is in an open state, and the wire binding body 70 is returned to the standby position. When the wire W binding the reinforcing bar S comes off the wire binding body 70, the reinforcing bar binding machine 1A is moved to the standby position.

[0088] In the binding operation of the reinforcing bar binding machine 1A described above, the wire feeding mechanism 2A performs an operation of pulling out a predetermined amount of the wire W from the reel 20 between the time when the wire W is fed in the reverse direction and wound around the reinforcing bar S and the time when the wire W is fed in the forward direction in the next binding operation.

[0089] The wire feeding mechanism 2A rotates the motor 22c forward and lowers the drawing roller 22a from the upper limit position P1. The wire drawing mechanism 22 lowers the drawing roller 22a from the upper limit position P1 to the lower limit position P2 along a direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

[0090] When the take-out roller 22a starts to descend from the upper limit position P1, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward, so that the wire W between the reel 20 and the first wire guiding portion 23 and the wire W between the rebar tying machine 1A and the second wire guiding portion 24 are pulled between the first wire guiding portion 23 and the second wire guiding portion 24. Therefore, the wire W between the rebar tying machine 1A and the second wire guiding portion 24 and the wire W between the first wire guiding portion 23 and the reel 20 accommodated in the reel accommodating portion 21 are sent between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

[0091] As described above, the load applied to the wire W guided by the first wire guiding portion 23 is configured to be larger than the load applied to the wire W guided by the second wire guiding portion 24, such that the first load > the second load.

[0092] Also, in the rebar tying machine 1A, in the operation of tying the rebar S with the wire W, the wire W is wound around the rebar S by sending the wire W in the reverse direction. In the operation of sending the wire W in the reverse direction by the rebar tying machine 1A, the wire feeder mechanism 2A does not send the wire W in the reverse direction. For this reason, in the operation of sending the wire W in the reverse direction by the rebar tying machine 1A, the wire W slackens between the rebar tying machine 1A and the second wire guiding portion 24.

[0093] Thereby, in the operation of pulling the wire W by the take-out roller 22a of the wire take-out mechanism 22, first, the surplus of the slackened wire W in the feed path 26 of the wire W between the rebar tying machine 1A and the second wire guiding portion 24 is drawn between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

[0094] When the excess of the wire W between the steel bar bundling machine 1A and the second wire guiding part 24 is sent and the slack of the wire W is eliminated, since the pair of feed gears 30 of the wire feeding part 3A do not rotate in the stopped state, the wire W cannot be fed in the wire feeding path 26 of the wire W between the steel bar bundling machine 1A and the second wire guiding part 24. As a result, the feed gear 30 becomes a load and the tension applied to the wire W between the steel bar bundling machine 1A and the second wire guiding part 24 increases, and the load by the feed gear 30 is added to the second load, so that the second load + the load of the feed gear > the first load.

[0095] When the second load + the load of the feed gear > the first load, the wire W is pulled out from the reel 20 housed in the reel housing part 21 and sent between the roller 23a of the first wire guiding part 23 and the roller 24a of the second wire guiding part 24. When the drawing roller 22a moves to the lower limit position, the slack of the wire W in the wire feeding path 26 of the wire W between the steel bar bundling machine 1A and the second wire guiding part 24 is eliminated, and the moving amount of the drawing roller 22a is set so that the amount of the wire W necessary for bundling the steel bar S by the steel bar bundling machine 1 can be pulled out from the reel 20.

[0096] When the drawing roller 22a descends to the lower limit position P2, the wire feeding mechanism 2A switches the rotation direction of the motor 22c from forward rotation to reverse rotation and raises the drawing roller 22a. When the drawing roller 22a moves to the upper limit position P1, the rotation direction of the motor 22c is stopped. As a result, the amount of the wire W necessary for bundling the steel bar S by the steel bar bundling machine 1A is in a slack state between the roller 23a of the first wire guiding part 23 and the roller 24a of the second wire guiding part 24.

[0097] In the next bundling operation executed by the steel bar bundling machine 1A, by the operation of feeding the wire W in the positive direction by the wire feeding part 3A, the slack wire W between the roller 23a of the first wire guiding part 23 and the roller 24a of the second wire guiding part 24 is sent in the direction of the steel bar bundling machine 1A.

[0098] Thus, depending on the magnitude of the load applied to the wire W induced by the first wire guiding portion 23 and the load applied to the wire W induced by the second wire guiding portion 24, it is switched whether to send the wire W on the side of the first wire guiding portion 23 or to send the wire W on the side of the second wire guiding portion 24.

[0099] Thereby, in order to wind the wire W around the reinforcing bar S, in the operation of sending the wire W in the reverse direction by the wire tying machine 1A, the slack of the wire W generated in the wire feeding path 26 between the wire tying machine 1A and the second wire guiding portion 24 can be eliminated by the operation of pulling out the wire W by the wire pulling mechanism 22. Also, the necessary amount of the wire W for tying the reinforcing bar S by the wire tying machine 1A can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire pulling mechanism 22.

[0100] As described above, in the tying facility 100A, the wire tying machine 1A has a form in which the curl forming portion 5A faces upward, and the opening 9 2 of the wire locking body exposed portion 93 faces upward. For this reason, in the tying facility 100A, when the reinforcing bar S is abutted against the abutting portion 91 in the operation of inserting the reinforcing bar S into the curl forming portion 5A of the wire tying machine 1A, the foreign matter adhering to the reinforcing bar S may fall due to the rubbing between the reinforcing bar S and the abutting portion 91 and enter the wire locking body exposed portion 93 from the opening 92.

[0101] Further, when the wire W passes between the center hook 70C and the first side hook 70R constituting the wire locking body 70 and between the center hook 70C and the second side hook 70L, foreign matters such as shavings generated by the rubbing of the wire W against the wire locking body 70 fall onto the bottom surface constituting the wall portion 93a inside the wire locking body exposed portion 93. Furthermore, in the operation of cutting the wire W by the cutting portion 6A, the cut end of the wire W may fall onto the bottom surface constituting the wall portion 93a inside the wire locking body exposed portion 93.

[0102] Therefore, the steel bar tying machine 1A is provided with a discharge portion 94 that discharges foreign matter inside the wire locking body exposed portion 93 to the outside of the main body portion 10A. The discharge portion 94 is configured by providing openings communicating with the wire locking body exposed portion 93 on both side portions of the main body portion 10A.

[0103] Further, the discharge portion 94 is provided with a discharge guiding portion 94a that is flush with the bottom surface of the wall portion 93a that constitutes the wire locking body exposed portion 93, so that there are no convex portions that would inhibit the discharge of foreign matter between the side of the discharge portion 94 and the bottom surface of the wire locking body 93.

[0104] Thereby, foreign matter inside the wire locking body exposed portion 93 can be discharged from the discharge portion 94 to the outside of the main body portion 10A. Also, by providing the discharge guiding portion 94a in the discharge portion 94, it is possible to suppress the accumulation of foreign matter at the edge portions of the opening that constitutes the discharge portion 94.

[0105] Furthermore, the discharge guiding portion 94a is configured by connecting at least a part of the wall portion 93a and the side of the discharge portion 94 on the same plane not only for the bottom surface but also for other wall portions 93a of the wall portion 93a that constitutes the wire locking body exposed portion 93, so that it is possible to suppress the accumulation of foreign matter at the edge portions of each side of the opening that constitutes the discharge portion 94.

[0106] In the steel bar tying machine 1A, in the operation of tying the above-described steel bar S, when the wire W wound around the steel bar S is twisted by rotating the wire locking body 70, the wire W may be inadvertently cut. The inadvertently cut wire W is referred to as a wire piece. The length of the wire piece is about 10 mm to 15 mm. The wire piece cut by the operation of rotating the wire locking body 70 may fall into the wire locking body exposed portion 93 by opening the first side hook 70R and the second side hook 70L with respect to the center hook 70.

[0107] Therefore, the discharge portion 94 has an opening width that is larger than the radial dimension of the wire locking body 70. Specifically, when the length of the wire piece is LW, the opening constituting the discharge portion 94 has, as shown in FIGS. 3D and 3E, a portion where the lengths along one direction and the other direction orthogonal to the one direction are equal to or greater than the diameter of a virtual circle C1 with a diameter of LW, which is 10 mm or more in this example, between at least a part of the opposing sides, and has a shape that includes the diameter portion of the virtual circle C1 with a diameter of 10 mm in any two directions.

[0108] For example, it is preferable that the length L1 in the direction along the axial direction of the rotary shaft 72 and the length L2 in the direction orthogonal to the axial direction of the rotary shaft 72 of the opening constituting the discharge portion 94 are each equal to or greater than the length LW of the wire piece, that is, each is 10 mm or more and 50 mm or less. From the relationship between the dischargeability of the wire piece and the configuration of the steel bar tying machine 1A, it is more preferable that the above dimensions are each 13 mm or more and 15 mm or less. Note that the opening constituting the discharge portion 94 does not have to be a substantially rectangular shape as shown in FIG. 3D or the like, and may have a shape in which a part bulges inward as shown in FIG. 3E or the like. Even in this case, as long as there is a portion where the length L1 in the direction along the axial direction of the rotary shaft 72 and the length L2 in the direction orthogonal to the axial direction of the rotary shaft 72 are each equal to or greater than the length LW of the wire piece, which is 10 mm or more in this example, the wire piece can be discharged from the discharge portion 94 regardless of its orientation. Thereby, an opening with an area sufficient for discharging foreign matter can be configured to form the discharge portion 94.

[0109] In the steel bar tying machine 1A, it vibrates during operations such as inserting and removing the steel bar S into and out of the curl forming portion 5A and tying the steel bar S. When the steel bar tying machine 1A vibrates, the discharge of foreign matter in the wire locking body exposed portion 93 to the outside from the discharge portion 94 is promoted.

[0110] Therefore, as a discharging means, a mode for discharging foreign matter may be set, and the steel bar tying machine 1A may be vibrated by raising and lowering the steel bar tying machine 1A by the elevating mechanism 111A at a predetermined timing when the tying operation is not being executed, etc., to promote the discharge of foreign matter in the wire locking body exposed portion 93 to the outside from the discharge portion 94.

[0111] Further, as another discharging means, a mode for discharging foreign matter may be set, and the bottom surface of the wall portion 93a constituting the wire locking body exposed portion 93 may be inclined in a direction of descending from the hole portion 93b toward the discharging portion 94 to facilitate discharging of the foreign matter in the wire locking body exposed portion 93 to the outside from the discharging portion 94.

[0112] Furthermore, the reinforcing bar bundling machine 1A includes a discharging portion 31 that discharges foreign matter in the wire feeding portion 3A in the main body portion 10A to the outside of the main body portion 10A. In the wire feeding portion 3A, the wire W is sandwiched by a pair of feeding gears 30, and foreign matter such as chips generated by the wire W rubbing against the feeding gears 30 drops into the space where the feeding gears 30 and the like are located in the wire feeding portion 3A. Therefore, by providing an opening communicating with the space where the feeding gears 30 and the like are located to form the discharging portion 31, the foreign matter in the wire feeding portion 3A can be discharged from the discharging portion 31 to the outside of the main body portion 10A.

[0113] <Modification Example of the Reinforcing Bar Bundling Machine of the Present Embodiment> FIGS. 8A and 8B are side views showing a modification example of the reinforcing bar bundling machine of the present embodiment. The reinforcing bar bundling machine 1B of the modification example applied to the bundling facility 100A shown in FIGS. 1A and 1B includes a cover portion 95 that is detachable from the discharging portion 94. The cover portion 95 is configured to entirely cover the opening constituting the discharging portion 94, or to cover a part of the opening constituting the discharging portion 94 and expose the remaining portion, or to provide, for example, a slit-shaped opening portion 95a to cover a part of the opening constituting the discharging portion 94 and expose the remaining portion.

[0114] The reinforcing bar bundling machine 1B is configured such that the discharging portions 94 are provided on both side portions of the main body portion 10A. By attaching the cover portion 95 to either one of the discharging portions 94, the discharging direction of the foreign matter can be selected. Further, if the cover portion 95 is provided with a slit-shaped opening portion 95a to cover a part of the opening constituting the discharging portion 94 and expose the remaining portion, the opening area of the discharging portion 94 can be adjusted by passing the cover portion 95 through the discharging portion 94.

[0115] <Another Configuration Example of the Reinforcing Bar Bundling Machine of the Present Embodiment> Figures 9A and 9B are side views showing another example of the steel bar tying machine according to the present embodiment. The steel bar tying machine 1C of another example of the present embodiment is in a form that can be held and used by an operator, and includes a magazine 2A in which the wire W is accommodated. Other configurations are the same as those of the steel bar tying machine 1A described above.

[0116] The magazine 2A is an example of the accommodating portion, and a reel (not shown) around which a long wire W is wound so as to be payed out is rotatably and detachably accommodated. The reel has one or a plurality of wires W wound around a hub portion (not shown), and one or a plurality of wires W can be pulled out from the reel simultaneously.

[0117] In the steel bar tying machine 1C that can be held and used by an operator, the handle portion 11A is located below the main body portion 10A, and the curl forming portion 5A is often used in a horizontal form located at the front end (front portion) of the main body portion 10A. Hereinafter, in the steel bar tying machine 1C, the side where the curl forming portion 5A is provided is defined as the front side. The curl forming portion 5A has a curl guide 50 and a guide guide 51 provided so as to be exposed at the front portion of the main body portion 10A. Further, the steel bar tying machine 1C includes a butting portion 91 against which the steel bar S is butted at the front portion of the main body portion 10A. Furthermore, the steel bar tying machine 1C has an opening 92 at the front portion of the main body portion 10A.

[0118] The discharge portion 94 includes a discharge guiding portion 94a on at least the bottom surface which is one surface located inside and below the wall portion 93a constituting the wire locking body exposed portion 93. In the steel bar tying machine 1C that is held and used by hand, the bottom surface in the wall portion 93a constituting the wire locking body exposed portion 93 is the surface located below in the form in which the steel bar tying machine 1C is used horizontally. The discharge guiding portion 94a is configured by connecting at least a part of the bottom surface constituting the wall portion 93a and the side of the opening constituting the discharge portion 94 on the same surface. Note that the discharge guiding portion 94a may be configured by an inclined surface inclined in the downward direction from the hole portion 93b toward the discharge portion 94. Also, for other wall portions 93a other than the bottom surface, the discharge guiding portion 94a is configured by connecting at least a part of the wall portion 93a and the side of the discharge portion 94 on the same surface.

[0119] Even in the case of the steel bar bundling machine 1C that is held and used by an operator, foreign matter inside the wire locking body exposed portion 93 can be discharged from the discharge portion 94 to the outside of the main body portion 10A. Further, by providing the discharge guiding portion 94a in the discharge portion 94, it is possible to suppress the accumulation of foreign matter at the edge portion of the opening that constitutes the discharge portion 94.

[0120] Furthermore, the discharge guiding portion 94a is configured such that not only the bottom surface but also other wall portions 93a other than the bottom surface of the wall portion 93a that constitutes the wire locking body exposed portion 93 are connected to at least a part of the edge of the discharge portion 94 on the same surface, thereby suppressing the accumulation of foreign matter at each edge portion of the opening that constitutes the discharge portion 94.

[0121] Also, even in the case of the steel bar bundling machine 1C that is held and used by an operator, as described with reference to FIGS. 8A and 8B, it may be configured to include a detachable cover portion 95 in the discharge portion 94.

Explanation of Reference Numerals

[0122] 1A, 1B, 1C... Steel bar bundling machine, 2A... Wire feeding mechanism, 20... Reel, 21... Reel housing portion, 22... Wire pulling out mechanism, 22a... Pulling out roller, 22b... Driving portion, 22c... Motor, 23... First wire guiding portion, 23a, 23b, 23c... Rollers, 24... Second wire guiding portion, 24a... Roller, 3A... Wire feeding portion, 30... Feeding gear, 31... Discharge portion, 5A... Curl forming portion, 6A... Cutting portion, 7A... Bundling portion, 70... Wire locking body, 8A... Driving portion, 80... Motor, 90... Feeding regulating portion, 91... Butting portion, 92... Opening, 93... Wire locking body exposed portion, 93a... Wall portion, 93b... Hole portion, 94... Discharge portion, 94a... Discharge guiding portion, 95... Cover portion, 95a... Opening portion, W... Wire

Claims

1. A binding machine for binding an object to be bound with a wire, a storage part in which the wire is stored so as to be pullable, and a wire feeding mechanism for pulling out the wire stored in the storage part, wherein the binding machine includes a main body part, a wire feeding part provided inside the main body part for feeding the wire pulled out from the storage part, a curl forming part provided to be exposed on the upper part of the main body part for forming a path for winding the wire fed by the wire feeding part around the object to be bound, a binding part provided inside the main body part and having a wire locking body for locking the wire wound around the object to be bound, and for twisting the wire wound around the object to be bound by rotating the wire locking body, a wire locking body exposure part communicating with an opening provided in the upper part of the main body part and exposing a part of the wire locking body covered by the main body part inside the main body part, and a discharging means for discharging foreign matter inside the wire locking body exposure part to the outside of the main body part, wherein the discharging means is configured by providing an opening communicating with the wire locking body exposure part on a side part of the main body part Binding equipment.

2. The discharging means according to claim 1, further comprising a discharge guiding part in which at least a part of a wall part constituting the opening provided on a side part of the main body part communicating with the wire locking body exposure part and the wire locking body exposure part are on the same plane The binding equipment according to claim 1.

3. The discharging means according to claim 1 or 2, wherein a cover part covering a part or all of the opening communicating with the wire locking body exposure part is detachably attached The binding equipment according to claim 1 or 2.

4. The discharging means according to any one of claims 1 to 3, wherein the opening communicating with the wire locking body exposure part in the main body part has a shape including a diameter part of a virtual circle having a diameter of 10 mm or more in two directions The binding equipment according to any one of claims 1 to 3.

5. The discharging means according to any one of claims 1 to 4, wherein the opening communicating with the wire locking body exposure part in the main body part has a length in a direction along the axial direction of the rotation axis of the wire locking body and a length in a direction orthogonal to the axial direction of the rotation axis, each being 10 mm or more and 50 mm or less The binding equipment according to any one of claims 1 to 4.

6. A main body part, a wire feeding part provided inside the main body part for feeding the wire pulled out from the storage part, a curl forming part provided to be exposed on the front part of the main body part for forming a path for winding the wire fed by the wire feeding part around the object to be bound, It has a wire locking body provided inside the main body part and locking the wire wound around the binding object, and a binding part that twists the wire wound around the binding object by rotating the wire locking body. A wire locking body exposure part that communicates with an opening provided at the front part of the main body part and exposes a part of the wire locking body covered by the main body part inside the main body part. It is provided with a discharging means for discharging foreign matter inside the wire locking body exposure part to the outside of the main body part. The discharging means is configured by providing an opening communicating with the wire locking body exposure part on the side part of the main body part. Binding machine.

7. The discharging means includes a discharge guiding part in which at least a part of a wall part constituting the opening provided on the side part of the main body part communicating with the wire locking body exposure part and the wire locking body exposure part are on the same plane. The binding machine according to claim 6.

8. A cover part covering a part or all of the opening communicating with the wire locking body exposure part of the discharging means is detachably attached. The binding machine according to claim 6.

9. The discharging means is such that the opening communicating with the wire locking body exposure part in the main body part has a shape including a diameter part of a virtual circle with a diameter of 10 mm in two directions. The binding machine according to any one of claims 6 to 8.

10. The discharging means is such that the length of the opening communicating with the wire locking body exposure part in the main body part in the direction along the axial direction of the rotation axis of the wire locking body and the length in the direction orthogonal to the axial direction of the rotation axis are each 10 mm or more and 50 mm or less. The binding machine according to any one of claims 6 to 9.

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