Bundling machine

Abstract

A reinforcing bar tying machine (1A) is provided with: a first output portion (15) that operates by operation of an operation portion; a second output portion (12A) that operates by an action of the reinforcing bar pressing against a contact member; and a control portion (100A) that, if a first signal output from the first output portion (15) by operation of the operation portion is detected and a second signal output from the second output portion (12A) by the action of the reinforcing bar pressing against the contact member is detected, controls a conveying motor (31) that drives a conveying portion and a twisting motor (80) that drives a twisting portion to perform an action of tying the reinforcing bar with a wire.

Description

[0001] This application is a divisional application of an application with international application No. PCT / JP2019 / 035088, filed on September 5, 2019, application No. 201980057795.0, and the title of "Binding Machine", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to a binding machine that binds a binding object such as a reinforcing bar with a wire. BACKGROUND

[0003] In the past, a binding machine called a reinforcing bar binding machine that winds a wire around a long body such as a reinforcing bar and twists the wire to bind the reinforcing bar with the wire has been proposed (for example, refer to Patent Literature 1).

[0004] The binding machine described in Patent Literature 1 is a form in which a handle having a start switch is connected to the other part of the machine via an extension portion, and the overall length of the machine can be adjusted according to the height of the operator. In the binding machine described in Patent Literature 1, a long body such as a reinforcing bar is put between the two fixed jaws, and the long bodies are connected by the wire by operating the start switch.

[0005] PRIOR ART DOCUMENTS

[0006] PATENT LITERATURE

[0007] Patent Literature 1: Japanese Patent No. 4874094 SUMMARY OF THE INVENTION

[0008] PROBLEMS TO BE SOLVED BY THE INVENTION

[0009] In the binding machine described in Patent Literature 1, it is assumed to be used in a work of binding a binding object provided on a floor surface. In such a case, the distance between the operator and the binding object is long, and it is difficult to confirm whether the binding object is put between the two fixed jaws. If the start switch is operated in such a situation, there is a possibility that the binding operation is performed although the binding object is not put between the two fixed jaws.

[0010] The binding machine of the present disclosure is completed to solve such a problem, and aims to provide a binding machine that can suppress the execution of an inadvertent binding operation.

[0011] MEANS FOR SOLVING THE PROBLEM

[0012] To solve the above problems, the tying machine of the present disclosure is provided with: a first main body portion having an operation portion that an operator can operate; a second main body portion having a conveying portion that conveys a wire, a guide portion that guides the wire conveyed by the conveying portion toward the periphery of a tying object, and a twisting portion that twists the wire guided by the guide portion to tie the tying object; a long strip-shaped connection portion that connects the first main body portion and the second main body portion; a first output portion that outputs a first signal upon detection of an operation of the operation portion; a second output portion that outputs a second signal upon detection that the tying object has been put into the wire conveying path guided by the guide portion; and a control portion that controls the conveying portion and the twisting portion to perform a tying operation if the first signal output from the first output portion is detected and the second signal output from the second output portion is detected. In addition, the tying machine of the present disclosure is provided with: a first main body portion having a handle portion that an operator can hold; a second main body portion having a conveying portion that conveys a wire, a guide portion that guides the wire conveyed by the conveying portion toward the periphery of a tying object, and a twisting portion that twists the wire guided by the guide portion to tie the tying object; a long strip-shaped connection portion that connects the first main body portion and the second main body portion; and an orientation detection portion that detects the orientation of the guide portion with respect to the direction of gravity.

[0013] Effects of the Invention

[0014] In the tying machine of the present disclosure, if the operator is not operating the operation portion provided to the first main body portion, the tying operation is not performed, so that the unintended tying operation can be suppressed. In addition, if the orientation of the guide portion with respect to the direction of gravity is not within the prescribed tying allowable range, the tying operation is not performed, so that the unintended tying operation can be suppressed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a side view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment.

[0016] Figure 2 is a plan view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment.

[0017] Figure 3 is a perspective view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment.

[0018] Figure 4 is a front view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment.

[0019] Figure 5 is a perspective view showing an example of the handle portion.

[0020] Figure 6 is a side view showing an example of the internal structure of the reinforcing bar tying machine of the first embodiment.

[0021] Figure 7 FIG. 1 is a side view showing a main part of the internal structure of a reinforcing bar tying machine according to a first embodiment.

[0022] Figure 8A FIG. 2 is a side view showing an example of a guide portion.

[0023] Figure 8B FIG. 3 is a side view showing an example of a guide portion.

[0024] Figure 9 FIG. 4 is a perspective view showing an example of a guide portion and a contact member.

[0025] Figure 10A FIG. 5 is a side view showing an example of a contact member.

[0026] Figure 10B FIG. 6 is a side view showing an example of a contact member.

[0027] Figure 11 FIG. 7 is a side view showing an example of a switch that detects a second guide.

[0028] Figure 12 FIG. 8 is a functional block diagram of the reinforcing bar tying machine according to the first embodiment.

[0029] Figure 13 FIG. 9 is a flowchart showing an example of the operation of the reinforcing bar tying machine according to the first embodiment.

[0030] Figure 14 FIG. 10 is a functional block diagram of a modification of the reinforcing bar tying machine according to the first embodiment.

[0031] Figure 15 FIG. 11 is a flowchart showing an example of the operation of the modification of the reinforcing bar tying machine according to the first embodiment.

[0032] Figure 16 FIG. 12 is a flowchart showing an example of the operation of another modification of the reinforcing bar tying machine according to the first embodiment.

[0033] Figure 17 FIG. 13 is a functional block diagram of still another modification of the reinforcing bar tying machine according to the first embodiment.

[0034] Figure 18 FIG. 14 is a flowchart showing an example of the operation of still another modification of the reinforcing bar tying machine according to the first embodiment.

[0035] Figure 19 FIG. 15 is a front view showing an example of the overall structure of a reinforcing bar tying machine according to a second embodiment.

[0036] Figure 20 FIG. 16 is a functional block diagram of the reinforcing bar tying machine according to the second embodiment.

[0037] Figure 21A is a perspective view showing an example of the overall structure of the steel bar tying machine of the third embodiment.

[0038] Figure 21B is a perspective view showing an example of the overall structure of the steel bar tying machine of the third embodiment.

[0039] Figure 22 is another example of the side view showing the overall structure of the steel bar tying machine of the other third embodiment.

[0040] Figure 23 is a functional block diagram of the steel bar tying machine of the third embodiment.

[0041] Figure 24 is a side view showing an example of the overall structure of the steel bar tying machine of the fourth embodiment.

[0042] Figure 25A is a side view showing a main part of the steel bar tying machine of the fifth embodiment.

[0043] Figure 25B is a side view showing a main part of the steel bar tying machine of the fifth embodiment.

[0044] Figure 26 is a functional block diagram of the steel bar tying machine of the sixth embodiment.

[0045] Figure 27 is a functional block diagram of the steel bar tying machine of the seventh embodiment.

[0046] Figure 28A is a side view showing an example of the overall structure of the steel bar tying machine of the seventh embodiment.

[0047] Figure 28B is a rear view showing an example of the overall structure of the steel bar tying machine of the seventh embodiment.

[0048] Figure 29A is a perspective view showing the orientation detection sensor of the first embodiment.

[0049] Figure 29B is a perspective view showing the orientation detection sensor of the second embodiment.

[0050] Figure 30A is a flowchart showing an example of the operation of the steel bar tying machine of the seventh embodiment.

[0051] Figure 30B is a flowchart showing another example of the operation of the steel bar tying machine of the seventh embodiment. DETAILED DESCRIPTION

[0052] Hereinafter, an example of a reinforcing bar tying machine as an embodiment of the tying machine of the present application will be described with reference to the drawings.

[0053] <Example of reinforcing bar tying machine of first embodiment>

[0054] Figure 1 is a side view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment, Figure 2 is a plan view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment, Figure 3 is a perspective view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment, Figure 4 is a front view showing an example of the overall structure of the reinforcing bar tying machine of the first embodiment.

[0055] The reinforcing bar tying machine 1A of the first embodiment is provided with a first main body portion 301, a second main body portion 302, and a long strip-shaped connecting portion 303 connecting the first main body portion 301 and the second main body portion 302. The first main body portion 301 is provided with a handle portion 304h having a pair of grip portions 304L, 304R that a worker can hold. In addition, the first main body portion 301 is provided with a battery 310B.

[0056] Figure 5 is a perspective view showing an example of the grip portion. The handle portion 304h is provided with an operation portion 304t in the grip portion 304R that is mainly held by the right hand. The operation portion 304t is mounted to the grip portion 304R, for example, in a manner that it can be rotated about an unillustrated shaft, and protrudes from the surface of the grip portion 304R. The operation portion 304t is operated by being rotated with respect to the grip portion 304R by being held by the worker together with the grip portion 304R. The reinforcing bar tying machine 1A is provided with an output portion that performs a predetermined output by the operation of the operation portion 304t in the grip portion 304R. The output portion that performs a predetermined output by the operation of the operation portion 304t is referred to as a first output portion described later.

[0057] Figure 6 is a side view showing an example of the internal structure of the reinforcing bar tying machine of the first embodiment, Figure 7 is a side view showing a main part of the internal structure of the reinforcing bar tying machine of the first embodiment.

[0058] The second main body portion 302 has a housing portion 2 that houses the wire reel 20 around which the wire W is wound in a rotatable manner, and a conveying portion 3 that conveys the wire W wound around the wire reel 20 housed in the housing portion 2. In addition, the second main body portion 302 has a restricting portion 4 that winds the wire W conveyed by the conveying portion 3, and a guide portion 5 that guides the wire W wound by the restricting portion 4 to the periphery of the reinforcing bar S as the bundling target object. Furthermore, the second main body portion 302 has a cutting portion 6 that cuts the wire W, a twisting portion 7 that twists the wire W, and a driving portion 8 that drives the cutting portion 6, the twisting portion 7, and the like.

[0059] The reinforcing bar bundling machine 1A is provided with the guide portion 5 on one side of the second main body portion 302. In the present embodiment, the side on which the guide portion 5 is provided is defined as the front. The reinforcing bar bundling machine 1A is linked by the linking portion 303 with the first main body portion 301 and the second main body portion 302, and becomes a form in which the guide portion 5 extends between the handle portion 304h compared to a reinforcing bar bundling machine that does not have the linking portion 303.

[0060] The housing portion 2 is configured to be capable of attaching and detaching the wire reel 20 and to support the wire reel 20. The conveying portion 3 has a pair of conveying gears 30 as conveying members. The conveying portion 3 conveys the wire W by rotating the conveying gears 30 by a motor not shown in the drawing in a state in which the wire W is sandwiched between the pair of conveying gears 30. The conveying portion 3 is capable of conveying the wire W in both a forward direction indicated by an arrow F and a reverse direction indicated by an arrow R according to the direction of rotation of the conveying gears 30.

[0061] The cutting portion 6 is provided on the downstream side of the conveying portion 3 with respect to the conveying of the wire W in the forward direction indicated by the arrow F. The cutting portion 6 has a fixed blade portion 60 and a movable blade portion 61 that cuts the wire W by cooperating with the fixed blade portion 60. In addition, the cutting portion 6 has a transmission mechanism 62 that transmits the operation of the driving portion 8 to the movable blade portion 61.

[0062] The fixed blade portion 60 has an opening 60a through which the wire W passes. The movable blade portion 61 cuts the wire W that has passed through the opening 60a of the fixed blade portion 60 by a rotational operation that uses the fixed blade portion 60 as a fulcrum.

[0063] The restricting portion 4 winds the wire W conveyed along the conveying path Wf of the wire W indicated by a broken line in the conveying direction of the wire W conveyed by the conveying portion 3 by having first to third restricting members that come into contact with the wire W at a plurality of points (in this case, at least three points) along the conveying direction of the wire W. Figure 7

[0064] ​The first restriction member of the restriction portion 4 is constituted by the fixed blade portion 60 described above. In addition, the restriction portion 4 has the restriction member 42 as a second restriction member on the downstream side of the fixed blade portion 60 with respect to the transport of the wire W in the positive direction indicated by the arrow F, and has the restriction member 43 as a third restriction member on the downstream side of the restriction member 42. The restriction member 42 and the restriction member 43 are constituted by cylindrical members, and the wire W contacts the outer peripheral surface.

[0065] The restriction portion 4 cooperates with the transport path Wf of the wire W that becomes helical, and the fixed blade portion 60, the restriction member 42, and the restriction member 43 are disposed on a curved line. The opening 60a through which the wire W passes of the fixed blade portion 60 is provided on the transport path Wf of the wire W. In addition, the restriction member 42 is provided on the radially inner side with respect to the transport path Wf of the wire W. Furthermore, the restriction member 43 is provided on the radially outer side with respect to the transport path Wf of the wire W.

[0066] Thus, the wire W that is transported by the transport portion 3 is wound in a manner that follows the transport path Wf of the wire W by contacting the fixed blade portion 60, the restriction member 42, and the restriction member 43.

[0067] The restriction portion 4 has a transmission mechanism 44 that transmits the operation of the drive portion 8 to the restriction member 42. The restriction member 42 is configured to be movable to a position that contacts the wire W in the operation of transporting the wire W in the positive direction by the transport portion 3 and winding the wire W, and to a position that does not contact the wire W in the operation of transporting the wire W in the negative direction and winding the wire W around the reinforcing bar S.

[0068] Figure 8A 、 Figure 8B is a side view showing an example of the guide portion, Figure 9 is a perspective view showing an example of the guide portion and the contact member, Figure 10A 、 Figure 10B is a side view showing an example of the contact member, and then the structure and the effect of the operation of the pair of guides will be described.

[0069] The guide portion 5 has a first guide 51 that provides the restriction member 43 of the restriction portion 4, and a second guide 52 that guides the wire W that is wound by the restriction portion 4 and the first guide 51 to the twisting portion 7.

[0070] The first guide 51 is mounted to the end portion on the front side of the second main body portion 302 and extends in the first direction indicated by the arrow Al. As shown in FIG. 6, the first guide 51 is constituted by a cylindrical member, and the wire W contacts the outer peripheral surface. Figure 7As shown, the first guide 51 has a groove portion 51h having a guide surface 51g with which the wire W conveyed by the conveying portion 3 is in sliding contact. In the first guide 51, when the side to which the second main body portion 302 is attached is set as the base end side and the side extending from the second main body portion 302 in the first direction is set as the top end side, the restriction member 42 is provided on the base end side of the first guide 51, and the restriction member 43 is provided on the top end side of the first guide 51. A gap through which the wire W can pass is formed between the guide surface 51g of the first guide 51 and the outer peripheral surface of the restriction member 42. A portion of the outer peripheral surface of the restriction member 43 protrudes toward the guide surface 51g of the first guide 51.

[0071] The second guide 52 is attached to the end portion of the front side of the second main body portion 302. The second guide 52 is provided in opposition to the first guide 51 in the second direction indicated by an arrow A2 orthogonal to the first direction. The first guide 51 and the second guide 52 are spaced apart by a prescribed interval along the second direction, and a space in which the wire W can pass is formed between the first guide 51 and the second guide 52. Figure 8A 、 Figure 8B The second guide 52 is attached to the end portion of the front side of the second main body portion 302. The second guide 52 is provided in opposition to the first guide 51 in the second direction indicated by an arrow A2 orthogonal to the first direction. The first guide 51 and the second guide 52 are spaced apart by a prescribed interval along the second direction, and a space in which the wire W can pass is formed between the first guide 51 and the second guide 52.

[0072] The guide portion 5 has an inducing portion 59 that induces the steel bar S toward the insertion / extraction opening 53. The inducing portion 59 is provided on the top end side of the first guide 51 and is constituted by a surface that, by being provided so as to approach the interval between the first guide 51 and the second guide 52 from the top end side of the inducing portion 59 toward the base end side, and specifically, as shown in Figure 7

[0073] As shown in Figure 9 The second guide 52 has a pair of side guides 52a that oppose each other in a third direction indicated by an arrow A3 orthogonal to the first direction and the second direction. In the second guide 52, when the side to which the second main body portion 302 is attached is set as the base end side and the side extending from the second main body portion 302 in the first direction is set as the top end side, the pair of side guides 52a are spaced apart so as to become narrower from the top end side toward the base end side. The base end sides of the pair of side guides 52a oppose each other at an interval through which the wire W can pass.

[0074] ​The base end side of the second guide 52 is supported to the shaft 52b and is attached to the second main body portion 302. The axis of the shaft 52b is a direction along the third direction. The second guide 52 is rotatable with the shaft 52b as a fulcrum with respect to the second main body portion 302. The end portion 52c of the tip end side of the second guide 52 is movable in a direction in which the end portion 51c of the first guide 51, which is opposite to the second guide 52 in the second direction indicated by the arrow A2, is approached and a direction in which the end portion 51c is distanced. The end portion P2 of the groove portion 51h is exposed at the end portion 51c of the first guide 51.

[0075] The second guide 52 is moved between a first position at which the distance between the end portion 52c of the second guide 52 and the end portion 51c of the first guide 51 is the first distance L1 as indicated by a solid line of FIG. 6, and a second position at which the distance between the end portion 52c of the second guide 52 and the end portion 51c of the first guide 51 is the second distance L2 shorter than the first distance L1 as indicated by a two-dot chain line of FIG. 6 and as indicated by a solid line of FIG. 7, by rotation with the shaft 52b as a fulcrum. Figure 8A Figure 8A Figure 8B The second guide 52 is moved between a first position at which the distance between the end portion 52c of the second guide 52 and the end portion 51c of the first guide 51 is the first distance L1 as indicated by a solid line of FIG. 6, and a second position at which the distance between the end portion 52c of the second guide 52 and the end portion 51c of the first guide 51 is the second distance L2 shorter than the first distance L1 as indicated by a two-dot chain line of FIG. 6 and as indicated by a solid line of FIG. 7, by rotation with the shaft 52b as a fulcrum.

[0076] The second guide 52 is in a state in which the end portion 52c of the second guide 52 is opened from the end portion 51c of the first guide 51 in a state in which the second guide 52 is in the second position. The second guide 52 is in a state in which the interval between the end portion 52c of the second guide 52 and the end portion 51c of the first guide 51 is widened in a state in which the second guide 52 is in the first position, and the reinforcement S is more easily put into the insertion opening 53 between the first guide 51 and the second guide 52.

[0077] The second guide 52 is in a state in which the side guide 52a is located in the wire W transport path Wf in a state in which the second guide 52 is in the second position. Figure 8A Figure 8B The second guide 52 is in a state in which the side guide 52a is located in the wire W transport path Wf in a state in which the second guide 52 is in the second position. Figure 8A The second guide 52 is in a state in which the side guide 52a is located in the wire W transport path Wf in a state in which the second guide 52 is in the second position.

[0078] The second guide 52 is in a state in which the side guide 52a is located in the wire W transport path Wf in a state in which the second guide 52 is in the second position.

[0079] ​​​The steel bar tying machine 1A is provided with the contact member 9A that detects the steel bar S by abutting against the steel bar S inserted into the insertion / extraction opening 53 between the first guide 51 and the second guide 52 and that operates the second guide 52. In addition, the steel bar tying machine 1A is provided with the cover portion 11 that covers the end portion of the front side of the second main body portion 302.

[0080] The cover portion 11 is installed from the end portion of the front side of the second main body portion 302 to both sides of the second main body portion 302 along the third direction. The cover portion 11 is composed of a sheet material or the like of metal, is in a shape that covers a part or all of the end portion of the front side of the second main body portion 302 and a part of both sides of the front side of the second main body portion 302 between the base end side of the first guide 51 and the base end side of the second guide 52. With the second main body portion 302 composed of resin, the cover portion 11 is composed of metal, whereby even if the contact member 9A and the steel bar S abut against the cover portion 11, it is possible to reduce abrasion of the cover portion 11.

[0081] The contact member 9A is installed to the second main body portion 302 via the cover portion 11 by being supported to the shaft 90A in a rotatable manner. The contact member 9A is in a bent shape, is provided with the abutting portion 91A that abuts against the steel bar S on one side with respect to the shaft 90A, and is provided with the linking portion 92A that is linked to the second guide 52 on the other side with respect to the shaft 90A. Specifically, in the second direction, the abutting portion 91A is provided on one side with respect to the shaft 90A, and the linking portion 92A is provided on the other side.

[0082] The contact member 9A is provided with the shaft 90A near the middle between the first guide 51 and the second guide 52. In addition, the contact member 9A is provided with a pair of the abutting portions 91A in the third direction indicated by the arrow A3 at a spacing at which the wire W tied with the steel bar S can pass from the vicinity of the portion supported by the shaft 90A to the first guide 51 side. The abutting portions 91A extend to both sides of the first guide 51.

[0083] Furthermore, the contact member 9A is provided with the linking portion 92A from the portion supported by the shaft 90A to the second guide 52 side, and the displacement portion 93A that comes into contact with the portion of the second guide 52 on the opposite side from the side that faces the first guide 51 is provided on the tip end side of the linking portion 92A.

[0084] The contact member 9A rotates with respect to the second main body portion 302 with the shaft 90A as a fulcrum, moves between a standby position in which the abutting portion 91A protrudes from the cover portion 11 toward the insertion / extraction opening 53 as shown in FIG. 8, and an operating position in which the abutting portion 91A approaches the cover portion 11 as shown in FIG. 9. Figure 10A Figure 10B

[0085] The contact member 9A moves to the operating position in response to the second guide 52 being operated by the operation of the operation lever 6. Figure 10B ​​In the state of the illustrated work position, the abutting portion 91A is in a shape extending from the shaft 90A in the second direction indicated by the arrow A2 toward the direction in which the first guide 51 is provided. Thus, the contact member 9A moves the abutting portion 91A in the first direction indicated by the arrow Al along a circular arc centered on the shaft 90A by pivoting about the shaft 90A. In the operation of inserting the steel bar S into the insertion / extraction opening 53 between the first guide 51 and the second guide 52, the steel bar tying machine 1A moves in the first direction indicated by the arrow Al. By the relative movement of the steel bar tying machine 1A and the steel bar S, the abutting portion 91A of the contact member 9A is pressed by a force in the first direction indicated by the arrow Al, and the contact member 9A moves toward the work position. Thus, the direction in which the abutting portion 91A moves by pivoting about the shaft 90A becomes a direction in which the steel bar S presses the abutting portion 91A by the relative movement of the steel bar tying machine 1A and the steel bar S. In addition, in the state of the contact member 9A moved to the work position, the linking portion 92A of the contact member 9A is in a shape inclined forward with respect to the abutting portion 91A and extending toward the direction in which the second guide 52 is provided. The displacement portion 93A moves in the second direction indicated by the arrow A2 along a circular arc centered on the shaft 90A by pivoting about the shaft 90A. Thus, in the state of the contact member 9A pressed by the force applying member 54 and the second guide 52 in the first position, the displacement portion 93A is pressed by the second guide 52 in the direction away from the first guide 51. Thus, the contact member 9A moves toward the standby position by pivoting about the shaft 90A, and the abutting portion 91A protrudes from the cover portion 11. Note that, in this example, the contact member 9A is configured to move by the force of the force applying member 54 applying force to the second guide 52, but can be configured to have another force applying member applying force to the contact member 9A. Figure 10B In the state of the illustrated work position, the abutting portion 91A is in a shape extending from the shaft 90A in the second direction indicated by the arrow A2 toward the direction in which the first guide 51 is provided. Thus, the contact member 9A moves the abutting portion 91A in the first direction indicated by the arrow Al along a circular arc centered on the shaft 90A by pivoting about the shaft 90A. In the operation of inserting the steel bar S into the insertion / extraction opening 53 between the first guide 51 and the second guide 52, the steel bar tying machine 1A moves in the first direction indicated by the arrow Al. By the relative movement of the steel bar tying machine 1A and the steel bar S, the abutting portion 91A of the contact member 9A is pressed by a force in the first direction indicated by the arrow Al, and the contact member 9A moves toward the work position. Thus, the direction in which the abutting portion 91A moves by pivoting about the shaft 90A becomes a direction in which the steel bar S presses the abutting portion 91A by the relative movement of the steel bar tying machine 1A and the steel bar S. In addition, in the state of the contact member 9A moved to the work position, the linking portion 92A of the contact member 9A is in a shape inclined forward with respect to the abutting portion 91A and extending toward the direction in which the second guide 52 is provided. The displacement portion 93A moves in the second direction indicated by the arrow A2 along a circular arc centered on the shaft 90A by pivoting about the shaft 90A. Thus, in the state of the contact member 9A pressed by the force applying member 54 and the second guide 52 in the first position, the displacement portion 93A is pressed by the second guide 52 in the direction away from the first guide 51. Thus, the contact member 9A moves toward the standby position by pivoting about the shaft 90A, and the abutting portion 91A protrudes from the cover portion 11. Note that, in this example, the contact member 9A is configured to move by the force of the force applying member 54 applying force to the second guide 52, but can be configured to have another force applying member applying force to the contact member 9A.

[0086] If the abutting portion 91A is pressed by the steel bar S, the abutting portion 91A moves in the first direction. Thus, the contact member 9A pivots about the shaft 90A and moves toward the work position. If the contact member 9A moves toward the work position, the displacement portion 93A moves in the direction approaching the first guide 51 by the pivoting of the linking portion 92A about the shaft 90A. Thus, the displacement portion 93A presses the second guide 52, and the second guide 52 moves from the first position to the second position. In this way, the second guide 52 moves from the first position to the second position by the abutting portion 91A abutting against the steel bar S and the displacement portion 93A moving.

[0087] Figure 11is a side view showing an example of an output portion that detects the second guide, and details of the second output portion 12A will be described with reference to the drawings. The reinforcing bar tying machine 1A is provided with a second output portion 12A that outputs in a prescribed manner when the second guide 52 moves to a second position. The second output portion 12A is, for example, a structure that outputs a change by displacement of a movable member 120. In this example, if the second guide 52 moves to the first position by the contact member 9A moving to the standby position, the second guide 52 moves in a direction away from the movable member 120. In this way, the output of the second output portion 12A in a state in which the second guide 52 is moved to the first position is set to OFF. In contrast, if the second guide 52 moves to the second position by the contact member 9A moving to the operating position, the second guide 52 moves in a direction that presses the movable member 120. In this way, the output of the second output portion 12A in a state in which the second guide 52 is moved to the second position is set to ON. Note that the output portion that detects the second guide can also be configured using a non-contact sensor. Alternatively, a structure can be provided in which, instead of the output portion that detects the second guide, an output portion that detects movement of the contact member to the operating position is provided.

[0088] Next, the torsion portion 7 and the drive portion 8 will be described with reference to the drawings. The torsion portion 7 is provided with an engagement portion 70 that engages the wire W and a working portion 71 that operates the engagement portion 70. The engagement portion 70 is rotated by the action of the working portion 71, thereby twisting the wire W that is wound around the reinforcing bar S.

[0089] The drive portion 8 is provided with a torsion motor 80 that drives the torsion portion 7 and the like, a speed reducer 81 that reduces speed and amplifies torque, a rotation shaft 82 that is rotated by the torsion motor 80 via the speed reducer 81, and a moving member 83 that transmits driving force to the cutting portion 6 and the restriction member 42. In the torsion portion 7 and the drive portion 8, the rotation shaft 82 and the rotation centers of the working portion 71 and the engagement portion 70 are arranged on the same axis. The rotation shaft 82 and the rotation centers of the working portion 71 and the engagement portion 70 are referred to as an axis Ax.

[0090] The engagement portion 70 is formed with a first passage through which the wire W that is transported to the cutting portion 6 by the transport portion 3 passes, and a second passage through which the wire W that is coiled by the restriction portion 4 and guided to the torsion portion 7 by the guide portion 5 passes.

[0091] The drive portion 8 moves the working portion 71 in the axial direction of the rotation shaft 82 by the rotational action of the rotation shaft 82. By the working portion 71 moving in the axial direction of the rotation shaft 82, the engagement portion 70 holds the tip end side of the wire W that is guided to the torsion portion 7 by the guide portion 5.

[0092] The driving section 8 moves the member 83 in the axial direction of the rotation shaft 82 by the operation linkage with the working section 71 moved in the axial direction of the rotation shaft 82, the operation of the member 83 is transmitted to the restriction member 42 by the transmission mechanism 44, the restriction member 42 is moved to the position not contacted with the wire. Further, the operation of the member 83 is transmitted to the movable blade section 61 by the transmission mechanism 62 by the working section 71 moved in the axial direction of the rotation shaft 82, the movable blade section 61 works and the wire W is cut.

[0093] The driving section 8 rotates the working section 71 moved in the axial direction of the rotation shaft 82 by the rotation operation of the rotation shaft 82. The working section 71 twists the wire W by the engaging section 70 by rotating around the shaft of the rotation shaft 82.

[0094] Figure 12 is a functional block diagram of the reinforcing bar tying machine of the first embodiment. The reinforcing bar tying machine 1A detects the output of the first output section 15 operated by the operation of the operation section 304t and the second output section 12A operated by the action that the reinforcing bar S is pressed by the abutting of the reinforcing bar S and the abutting section 91A of the contact member 9A, by the control section 100A. The control section 100A controls the conveying motor 31 that drives the conveying gear 30 and the twisting motor 80 that drives the twisting section 7 and the like in accordance with the output of the first output section 15 and the second output section 12A, and performs a series of actions that the reinforcing bar S is tied by the wire W.

[0095] Figure 13 is a flowchart showing an example of the action of the reinforcing bar tying machine of the first embodiment, and then, the action that the reinforcing bar S is tied by the wire W by the reinforcing bar tying machine 1A is described. The operator holds the handle section 304h of the reinforcing bar tying machine 1A by both hands. That is, the operator holds the grip section 304R of the handle section 304h by the right hand and holds the grip section 304L of the handle section 304h by the left hand.

[0096] If the operation section 304t is held by the operator together with the grip section 304R, the operation section 304t is operated by the rotation with respect to the grip section 304R. If the operation section 304t is operated, the output of the first output section 15 becomes ON in the step SA1 of Figure 13 The control section 100A detects that the output of the first output section 15 becomes ON. It is to be noted that the detection of the control section 100A that the output of the first output section 15 becomes ON is also called the detection of the first signal by the control section.

[0097] The operator holds the handle section 304h of the reinforcing bar tying machine 1A by both hands, aligns the position of the guide section 5 to the crossing position of the two reinforcing bars S, and puts the reinforcing bars S into the insertion opening 53.

[0098] The steel bar tying machine 1A ties the steel bars S around the feet of the operator, and thus is used in a state in which the guide portion 5 is directed downward and the operator stands. Therefore, it is difficult to align the position of the guide portion 5 with the intersection of the two steel bars S. Thus, the steel bar tying machine 1A moves the second guide 52 to the first position in a state in which the steel bars S are not inserted into the insertion opening 53, as shown in FIG. 6, and the interval between the end portion 52c of the second guide 52 and the end portion 51c of the first guide 51 is widened. In addition, the steel bar tying machine 1A is provided with an induction portion 59 of a shape that induces the steel bars S toward the insertion opening 53 on the tip side of the first guide 51. The operator can move the steel bars S against the induction portion 59 in a manner in which the induction portion 59 slides on the steel bars S. Thereby, it is easier to insert the steel bars S into the insertion opening 53. Figure 10A

[0099] The operator presses the steel bars S against the abutting portions 91A of the contact member 9A by moving the steel bar tying machine 1A in a direction in which the steel bars S are inserted into the insertion opening 53.

[0100] The contact member 9A is pressed by the abutting portions 91A by the action of moving the steel bar tying machine 1A in a direction in which the steel bars S are inserted into the insertion opening 53, and thereby moves in the first direction indicated by the arrow Al by the abutting portions 91A, and rotates about the shaft 90A, as shown in FIG. 8, and moves to the working position. Figure 10B

[0101] If the two steel bars S that intersect are inserted into the insertion opening 53, one of the steel bars S is positioned on one side of the first guide 51, and the other of the steel bars S is positioned on the other side of the first guide 51. In relation to this, the pair of abutting portions 91A of the contact member 9A extend from between the first guide 51 and the second guide 52 to both sides of the first guide 51. Thereby, the steel bars S that are inserted into the insertion opening 53 reliably abut against the abutting portions 91A, and the contact member 9A can be moved to the working position. In addition, the abutting portions 91A of the contact member 9A move in the first direction indicated by the arrow Al by the action of rotating about the shaft 90A. Thereby, the abutting portions 91A can be pressed by the action of moving the steel bar tying machine 1A in a direction in which the steel bars S are inserted into the insertion opening 53, without moving the steel bar tying machine 1A in another direction in order to make the contact member 9A work.

[0102] If the contact member 9A moves to the working position, the displacement portion 93A presses the second guide 52 in a direction in which the first guide 51 is approached by the action of rotating the connecting portion 92A about the shaft 90A, and the second guide 52 moves to the second position.

[0103] If the second guide 52 moves to the second position, the end portion 52c of the second guide 52 is positioned on the other side of the first guide 51, as shown in FIG. 10. Figure 13 ​​the output of the second output section 12A becomes ON, the control section 100A detects that the output of the second output section 12A has become ON. Note that the detection of the output of the second output section 12A having become ON by the control section 100A is also referred to as the detection of the second signal by the control section. In the state in which the contact member 9A moves to the working position with the output of the second output section 12A becoming ON, the reinforcing bar S is in a state of being put in the wire W transport path Wf shown by the dotted line and the bundling position. Thus, the second output section 12A can detect that the reinforcing bar S is put in the wire W transport path Wf. Figure 7

[0104] The control section 100A, in the state in which the output of the first output section 15 is detected to have become ON (i.e., in the state in which the first signal is detected), if the output of the second output section 12A is detected to have become ON (i.e., the second signal is detected), controls the transport motor 31 and the twisting motor 80 in the step SA3 to perform a series of actions of bundling the reinforcing bar S with the wire W. Figure 13 The control section 100A, in the state in which the output of the first output section 15 is detected to have become ON (i.e., in the state in which the first signal is detected), if the output of the second output section 12A is detected to have become ON (i.e., the second signal is detected), controls the transport motor 31 and the twisting motor 80 in the step SA3 to perform a series of actions of bundling the reinforcing bar S with the wire W.

[0105] Thus, if it is not the case that "after the output of the first output section 15 becomes ON by the operation section 304t working as a result of the holding section 304R being held, in the state in which the output of the first output section 15 is ON (i.e., in the state in which the holding section 304R is held), the contact member 9A moves to the working position by being pressed by the reinforcing bar S so that the output of the second output section 12A becomes ON", the control section 100A does not start the drive of the transport motor 31 and the twisting motor 80.

[0106] If the details of the bundling action are described, the wire W is transported in the positive direction shown by the arrow F as a result of the transport gear 30 rotating in the positive direction by the transport motor 31 rotating in the positive direction. The wire W transported in the positive direction by the transport section 3 passes through the first restriction member, i.e., the fixed blade section 60, and the second restriction member, i.e., the restriction member 42, which constitute the restriction section 4. The wire W that has passed through the restriction member 42 is guided to the third restriction member, i.e., the restriction member 43, by the guide surface 51g of the first guide member 51.

[0107] ​Thus, the wire W transported in the positive direction by the transport section 3 is bent in an arc shape by coming into contact with the fixed blade section 60, the restriction member 42, the restriction member 43, and the guide surface 51g of the first guide 51. Also, the wire W transported in the positive direction by the transport section 3 is wound in a substantially circular shape by "the fixed blade section 60 and the restriction member 43 coming into contact from the outer periphery direction of the arc shape, and the restriction member 42 coming into contact from the inner periphery direction between the fixed blade section 60 and the restriction member 43".

[0108] The end portion 51c of the first guide 51 and the end portion 52c of the second guide 52 are separated by a prescribed interval in a state in which the second guide 52 is moved to the second position. However, in a state in which the second guide 52 is moved to the second position, the pair of side guides 52a are positioned in the transport path Wf of the wire W, and the wire W transported in the positive direction by the transport section 3 is wound by the restriction section 4 as described above, and thus is guided toward between the pair of side guides 52a of the second guide 52.

[0109] The wire W guided toward between the pair of side guides 52a of the second guide 52 is guided by the pair of side guides 52a of the second guide 52 toward the engaging section 70 of the twisting section 7 by being transported in the positive direction by the transport section 3. Also, the control section 100A stops the drive of the transport motor 31 if it is determined that the tip end portion of the wire W is transported to a prescribed position. Thus, the wire W is wound in a spiral shape around the reinforcing bar S. Note that, in a state in which the second guide 52 is not moved to the second position and the output of the second output section 12A is off, the control section 100A does not perform the transport of the wire W. Thus, the wire W is not engaged with the engaging section 70 of the twisting section 7, and it is possible to suppress the occurrence of transport failure.

[0110] The control section 100A stops the transport of the wire W in the positive direction, and then rotates the twisting motor 80 in the positive direction. By rotating the twisting motor 80 in the positive direction, the engaging section 70 is operated by the working section 71, and the tip end side of the wire W is held by the engaging section 70.

[0111] The control section 100A stops the rotation of the twisting motor 80 if it is determined that the twisting motor 80 is rotated to hold the wire W by the engaging section 70, and rotates the transport motor 31 in the reverse direction. If the twisting motor 80 is rotated to hold the wire W by the engaging section 70, the movement of the movement member 83 is transmitted to the restriction member 42 by the transmission mechanism 44, and the restriction member 42 is moved to a position not coming into contact with the wire.

[0112] If the transport motor 31 is rotated in the reverse direction, the transport gear 30 is rotated in the reverse direction, and the wire W is transported in the reverse direction as indicated by the arrow R. By the movement of transporting the wire W in the reverse direction, the wire W is wound in a manner in which it is in close contact with the reinforcing bar S.

[0113] The control section 100A stops the rotation of the conveying motor 31, and then rotates the twisting motor 80 in the positive direction. By rotating the twisting motor 80 in the positive direction, the movable blade portion 61 is operated by the moving member 83 via the transmission mechanism 62, and the wire W is cut.

[0114] After the wire W is cut, the engaging portion 70 is rotated by continuing the rotation of the twisting motor 80 in the positive direction, and the wire W is twisted.

[0115] The control section 100A rotates the twisting motor 80 in the reverse direction if it is determined that the twisting motor 80 is rotated in the positive direction to twist the wire W. By rotating the twisting motor 80 in the reverse direction, the engaging portion 70 is returned to the initial position, and the wire W is released from the holding. Thus, the wire W that has bundled the reinforcing bar S can be pulled out of the engaging portion 70.

[0116] The control section 100A stops the rotation of the twisting motor 80 if it is determined that the twisting motor 80 is rotated in the reverse direction to return the engaging portion 70 and the like to the initial position.

[0117] The operator moves the reinforcing bar tying machine 1A in a direction in which the reinforcing bar S bundled by the wire W is pulled out of the insertion opening 53. If the force of the abutting portion 91A of the pressing contact member 9A is no longer applied by the movement of the reinforcing bar tying machine 1A in the direction in which the reinforcing bar S is pulled out of the insertion opening 53, the second guide member 52 is moved from the second position to the first position by the force of the urging member 54.

[0118] If the second guide member 52 is moved to the first position, the displacement portion 93A of the contact member 9A is pressed in a direction away from the first guide member 51, and the contact member 9A is moved to the standby position by the rotation about the shaft 90A, and the abutting portion 91A is projected from the cover portion 11.

[0119] By the movement of the reinforcing bar tying machine 1A in the direction in which the reinforcing bar S bundled by the wire W is pulled out of the insertion opening 53 by the operator, the second guide member 52 is moved to the first position, and the interval between the end portion 52c of the second guide member 52 and the end portion 51c of the first guide member 51 is widened. Thus, the reinforcing bar S is more easily pulled out of the insertion opening 53.

[0120] Figure 14 is a functional block diagram of a modification example of the reinforcing bar tying machine of the first embodiment. The control section 100B performs the following control: if it is detected that the output of the first output section 15 becomes on by the operation of the operation section 304t by the gripping of the gripping section 304R, the counting by the timer 101T is performed, and the output of the first output section 15 is considered to be on during a certain time.

[0121] Figure 15 is a flowchart showing an example of the operation of a modification example of the reinforcing bar tying machine of the first embodiment.

[0122] The control section 100B sets the count value t of the timer 101T to 0 in step SB1, and determines whether the output of the first output section 15 is on in step SB2. Figure 15 The control section 100B sets the count value t of the timer 101T to 0 in step SB1, and determines whether the output of the first output section 15 is on in step SB2.

[0123] The operator holds the handle section 304h of the reinforcing bar tying machine 1A with both hands. That is, the operator holds the grip section 304R of the handle section 304h with the right hand, and holds the grip section 304L of the handle section 304h with the left hand.

[0124] If the operation section 304t is held by the operator together with the grip section 304R, the operation section 304t operates by rotating with respect to the grip section 304R. If the operation section 304t operates, the output of the first output section 15 becomes on in step SB2, and the control section 100B detects that the output of the first output section 15 is on. Figure 15 The control section 100B sets the count value t of the timer 101T to 0 in step SB1, and determines whether the output of the first output section 15 is on in step SB2.

[0125] The operator holds the handle section 304h of the reinforcing bar tying machine 1A with both hands, aligns the position of the guide section 5 to the intersection of the two reinforcing bars S, and inserts the reinforcing bars S into the insertion opening 53. The operator presses the reinforcing bars S against the abutting section 91A of the contact member 9A by moving the reinforcing bar tying machine 1A in the direction in which the reinforcing bars S are inserted into the insertion opening 53.

[0126] The contact member 9A receives a force in the direction in which the reinforcing bar tying machine 1A moves by the operation of moving the reinforcing bar tying machine 1A in the direction in which the reinforcing bars S are inserted into the insertion opening 53, and the abutting section 91A is pressed. Thus, the contact member 9A moves in the first direction indicated by the arrow Al by the abutting section 91A, and rotates about the shaft 90A to move to the working position, as shown in FIG. 9. Figure 10B

[0127] If the contact member 9A moves to the working position, the displacement section 93A presses the second guide 52 in the direction in which the first guide 51 is approached by the rotation of the linking section 92A about the shaft 90A, and the second guide 52 moves to the second position.

[0128] ​If the control section 100B detects that the output of the first output section 15 becomes ON (i.e., detects the first signal), it determines in step SB5 whether the output of the second output section 12A is detected as ON. If the control section 100B determines in step SB5 that the output of the second output section 12A is detected as OFF, it returns to step SB2.

[0129] If the second guide 52 moves to the second position, the output of the second output section 12A becomes ON in step SB5, and the control section 100B detects that the output of the second output section 12A is ON. Figure 15

[0130] If the control section 100B detects in step SB5 that the output of the second output section 12A is ON (i.e., detects the second signal), it controls the conveyance motor 31 and the twisting motor 80 in step SB6 to perform a series of operations for binding the reinforcing bars S with the wire W. Figure 15

[0131] After the execution of the binding operation, the control section 100B returns to step SB2 to determine whether the output of the first output section 15 is detected as ON. As described above, if the operation section 304t is operated and the output of the first output section 15 becomes ON, the counting based on the timer 101T is started. Thus, after the output of the first output section 15 becomes ON, if the output of the first output section 15 becomes OFF, the counting based on the timer 101T is being performed. For example, the output of the first output section 15 becomes ON by operating the operation section 304t by holding the holding section 304R by the worker. Thereafter, the output of the first output section 15 becomes OFF by shifting the position of the holding section 304R held by the worker during the work, or the like. In such a case, the counting based on the timer 101T is being performed by the output of the first output section 15 becoming ON.

[0132] Thus, if the control section 100B determines in step SB2 that the output of the first output section 15 is detected as OFF, it determines in step SB7 whether the count value t of the timer 101T is within a prescribed time T.

[0133] If the control section 100B determines in step SB7 that the count value t of the timer 101T exceeds 0 and is T or less (is within the prescribed time T), it determines in step SB5 whether the output of the second output section 12A is detected as ON. Also, if the control section 100B detects in step SB5 that the output of the second output section 12A is ON, it controls the conveyance motor 31 and the twisting motor 80 in step SB6 to perform a series of operations for binding the reinforcing bars S with the wire W.

[0134] ​​Therefore, even if the output of the first output unit 15 is turned off after the output of the first output unit 15 is turned on, the binding action will still be performed if the output of the second output unit 12A is turned on during a specified period of time.

[0135] In addition, after the binding action is executed, the control unit 100B returns to step SB2 to determine whether the output of the first output unit 15 is turned on. If the output of the first output unit 15 is turned on, the timing value t of the timer 101T is set to 0 in step SB3, and the timing based on the timer 101T is started in step SB4.

[0136] Furthermore, after the operation begins, the control unit 100B... Figure 15 In step SB1, the timing value t of timer 101T is set to 0. In step SB2, it is determined whether the output of the first output unit 15 is detected to be on. If the output of the first output unit 15 is detected to be off, then in step SB7, it is determined whether the timing value t of timer 101T is within the specified time T.

[0137] In this case, since the timing value t of timer 101T is 0, the timing value t of timer 101T is not within the specified time T, and the process returns to step SB1. Therefore, even if the output of the second output unit 12A is turned on when the output of the first output unit 15 is off, the binding operation is not performed.

[0138] Thus, the control unit 100B performs the following control: if a predetermined time has elapsed since the output of the first output unit 15 became on, the output of the first output unit 15 is considered to be on even if the output of the first output unit 15 becomes off. Alternatively, a circuit structure can be configured such that if the output of the first output unit 15 becomes on, the output remains on for a predetermined time.

[0139] To maintain the output of the first output unit 15 on, the operating unit 304t must be held together with the holding unit 304R at all times. However, sometimes the position of the holding unit 304R shifts during operation. Consequently, the output of the first output unit 15 becomes unstable due to temporary disconnection. If the output of the first output unit 15 is unstable, the operator may perform the same operation but not perform the binding action, resulting in decreased work efficiency. Therefore, the following control is implemented: even if the output of the first output unit 15 is disconnected, under specified conditions (in this embodiment, within a specified time from when the output of the first output unit 15 becomes on), the output of the first output unit 15 is considered to be on. Thus, even if the output of the first output unit 15 is unstable and repeatedly becomes on and off, the binding action can still be performed normally.

[0140] Therefore, even in the case where "although the gripping part 304R is being held, the output of the first output part 15 is unstable and the output repeatedly becomes on and off", if the contact member 9A moves to the working position by being pressed against the steel bar S, thereby turning on the output of the second output part 12A, the binding action can still be performed.

[0141] It should be noted that even if "after a predetermined time has elapsed since the output of the first output unit 15 is turned on and the output of the first output unit 15 is turned off, the contact member 9A moves to the working position by being pressed against by the steel bar S, the output of the second output unit 12A is turned on, and after the output of the second output unit 12A is turned on, the output of the first output unit 15 is detected to be turned on", the control unit 100B does not start to supply the drive of the motor 31 and the torsion motor 80.

[0142] Therefore, if it is not "after the first output unit 15 is turned on because the operating unit 304t is operated by the gripping part 304R, and the output of the first output unit 15 is turned on (i.e., the gripping part 304R is gripped), the contact member 9A moves to the working position by being pressed against the steel bar S, and the output of the second output unit 12A is turned on", then the control unit 100B will not start to drive the motor 31 and the torsion motor 80.

[0143] Figure 16 This is a flowchart illustrating an example of the operation of another variation of the rebar tying machine according to the first embodiment.

[0144] Control unit 100B Figure 16 In step SC1, the binding completion signal F1, which indicates that the binding action has been performed, is set to 0. In step SC2, the timing value t of timer 101T is set to 0. In step SC3, it is determined whether the output of the first output unit 15 is detected to be on.

[0145] The operator holds the handle 304h of the rebar tying machine 1A with both hands. That is, the operator holds the grip part 304R of the handle 304h with the right hand and the grip part 304L of the handle 304h with the left hand.

[0146] If the operating part 304t and the gripping part 304R are held by the operator, the operating part 304t operates by rotating relative to the gripping part 304R. When the operating part 304t is operating, then... Figure 16In step SC3, the output of the first output unit 15 is turned on, and the control unit 100B detects that the output of the first output unit 15 is turned on. If the control unit 100B determines that the output of the first output unit 15 is turned on (i.e., the first signal is detected), then in step SC4, the timing value t of the timer 101T is set to 0, and in step SC5, timing based on the timer 101T is started.

[0147] The operator holds the handle 304h of the rebar tying machine 1A with both hands, aligns the guide part 5 with the intersection of the two rebars S, and inserts the rebar S into the insertion port 53. The operator presses the rebar S against the contact part 91A of the contact member 9A by moving the rebar tying machine 1A in the direction of inserting the rebar S into the insertion port 53.

[0148] The contact member 9A, by moving the rebar tying machine 1A in the direction of inserting the rebar S into the insertion port 53, receives a force along the direction of movement of the rebar tying machine 1A, and the abutment portion 91A is pressed down. As a result, the contact member 9A rotates about the axis 90A as a fulcrum by moving the abutment portion 91A along the first direction indicated by arrow A1. Figure 10B As shown, move to the work position.

[0149] If the contact member 9A moves to the working position, the displacement part 93A presses the second guide 52 in a direction close to the first guide 51 by the rotation of the connecting part 92A with the shaft 90A as the fulcrum, and the second guide 52 moves to the second position.

[0150] If the control unit 100B detects that the output of the first output unit 15 is turned on (i.e., the first signal is detected), it determines in step SC6 whether the output of the second output unit 12A is turned on. If the control unit 100B determines in step SC6 that the output of the second output unit 12A is turned off, it returns to step SC3.

[0151] If the second guide 52 moves to the second position, then in Figure 16 In step SC6, the output of the second output unit 12A is turned on, and the control unit 100B detects that the output of the second output unit 12A is turned on.

[0152] If the control unit 100B is in Figure 16 If the output of the second output unit 12A is detected to be turned on in step SC6 (i.e., the second signal is detected), then in step SC7, the conveying motor 31 and the torsion motor 80 are controlled to perform a series of actions to tie the reinforcing bar S with the wire W.

[0153] The control section 100B sets the bundling completion ON flag Fl to 1 after execution of the bundling operation in step SC8, sets the count value t of the timer 101T to 0 in step SC9, and starts counting based on the timer 101T in step SC10. Then, the routine returns to step SC3, and it is determined whether the output of the first output section 15 is detected to be ON.

[0154] As described above, if the operation section 304t is operated and the output of the first output section 15 becomes ON, counting based on the timer 101T is started. Thus, after the output of the first output section 15 becomes ON, if the output of the first output section 15 becomes OFF, counting based on the timer 101T is being performed. In addition, counting based on the timer 101T is started after the bundling operation is performed. For example, the operation section 304t is operated by the worker holding the grip section 304R, and the output of the first output section 15 becomes ON. Thereafter, the output of the first output section 15 becomes OFF due to a shift in the position at which the grip section 304R is held during work, or the like. In this case, counting based on the timer 101T is being performed because the output of the first output section 15 becomes ON.

[0155] Thus, if the control section 100B determines in step SC3 that the output of the first output section 15 is detected to be OFF, it determines in step SC11 whether the bundling completion ON flag Fl is 0 or 1. Then, it is determined whether the count value t of the timer 101T is within a predetermined time based on whether the bundling completion ON flag Fl is 0 or 1.

[0156] That is, if the control section 100B determines in step SC11 that the bundling completion ON flag Fl is 0, it determines in step SC12 whether the count value t of the timer 101T is within a predetermined time Tl. The state in which the bundling completion ON flag Fl is 0 indicates a case in which the output of the first output section 15 becomes ON, and the bundling operation is not performed thereafter.

[0157] If the control section 100B determines in step SC12 that the count value t of the timer 101T exceeds 0 and is Tl or less (is within the predetermined time Tl), it determines in step SC6 whether the output of the second output section 12A is detected to be ON. Then, if the control section 100B detects in step SC6 that the output of the second output section 12A is ON, it controls the conveyance motor 31 and the twisting motor 80 in step SC7 to perform a series of operations for bundling the reinforcing bars S with the wire W.

[0158] Thus, after the output of the first output section 15 becomes ON, even if the output of the first output section 15 becomes OFF, if the output of the second output section 12A becomes ON during the predetermined time Tl, the bundling operation is performed.

[0159] Further, the control section 100B judges whether the timing value t of the timer 101T is within the prescribed time T2 in step SC13 if it is judged in step SC11 that the bundling completion ON flag Fl is 1. The state in which the bundling completion ON flag Fl is 1 means a case in which the bundling operation is performed after the output of the first output section 15 becomes ON. Here, the time T2 is set to be longer than the time Tl.

[0160] The control section 100B judges whether the output of the second output section 12A is ON in step SC6 if it is judged in step SC13 that the timing value t of the timer 101T exceeds 0 and is T2 or less (is within the prescribed time T2). Also, the control section 100B controls the conveyance motor 31 and the twisting motor 80 to perform a series of operations for bundling the reinforcing bars S with the wire W in step SC7 if it is detected in step SC6 that the output of the second output section 12A is ON.

[0161] Thus, after the execution of the bundling operation, even if the output of the first output section 15 becomes OFF, if the output of the second output section 12A becomes ON during the prescribed time T2, the bundling operation is performed.

[0162] Further, the control section 100B sets the bundling completion ON flag Fl to 0 in step SC1 after the start of the operation, sets the timing value t of the timer 101T to 0 in step SC2, and judges whether the output of the first output section 15 is ON in step SC3. Also, if the output of the first output section 15 is OFF, the bundling completion ON flag Fl is 0 in step SC11, and thus it is judged in step SC12 whether the timing value t of the timer 101T is within the prescribed time Tl.

[0163] In this case, since the timing value t of the timer 101T is 0, the timing value t of the timer 101T is not within the prescribed time Tl, and the process returns to step SC1. Thus, in the case in which the output of the first output section 15 is OFF, even if the output of the second output section 12A becomes ON, the bundling operation is not performed.

[0164] The control section 100B performs the following control: even if the output of the first output section 15 becomes OFF, the output of the first output section 15 is regarded as ON if the prescribed time does not elapse from the start of the timing of the output of the first output section 15 becoming ON. Further, it can be configured as a circuit structure in which the output remains ON for the prescribed time if the output of the first output section 15 becomes ON.

[0165] As described above, if the output of the first output section 15 is unstable, there are cases where the bundling operation is performed and cases where the bundling operation is not performed for the operator although the same operation is being performed, and the work efficiency deteriorates. Therefore, the following control is performed: even if the output of the first output section 15 becomes off, the output of the first output section 15 is regarded as on under a prescribed condition (in the present embodiment, from when the output of the first output section 15 becomes on or from when the bundling operation is performed for a prescribed time). Thus, even in a case where the output of the first output section 15 is unstable and the output repeatedly becomes on and off, the bundling operation can be normally performed.

[0166] Thus, even in a case where "the output of the first output section 15 is unstable and repeatedly becomes on and off although the gripping portion 304R is being held", if the contact member 9A moves to the working position by being pressed by the reinforcing bar S and the output of the second output section 12A becomes on, the bundling operation can be performed.

[0167] In addition, the control section 100B changes the prescribed time during which the output of the first output section 15 is regarded as on before and after the execution of the bundling operation, and the prescribed time during which the output of the first output section 15 is regarded as on is set longer after the execution than before the execution.

[0168] Before the execution of the bundling operation, it is possible that the holding of the gripping portion 304R becomes unstable due to a shift in the position of the hand holding the gripping portion 304R or the like. In such a state, in order to "not perform the bundling operation even if the contact member 9A moves to the working position by being pressed by the reinforcing bar S and the output of the second output section 12A becomes on", the prescribed time Tl is set.

[0169] In contrast, after the execution of the bundling operation, it is possible to consider moving the reinforcing bar bundling machine 1A and continuously performing the bundling of the next reinforcing bar S. In such a case, in a state where the output of the first output section 15 temporarily becomes off due to a shift in the position of the hand holding the gripping portion 304R or the like, if the time during which the output of the first output section 15 is regarded as on is short, there is no time lag in moving the reinforcing bar bundling machine 1A to the next reinforcing bar S. Therefore, the prescribed time T2 during which the output of the first output section 15 is regarded as on is set longer than the time Tl.

[0170] Also, the following control is performed: when the bundling operation is performed, the timing value is cleared and the timing operation is started again, and even if the output of the first output section 15 becomes off, the output of the first output section 15 is regarded as on if a prescribed time has not elapsed.

[0171] Thus, in the case where the bundling operation is continuously performed, even if the force to hold the holding portion 304R temporarily weakens and the operation portion 304t becomes non-operational, the output of the first output portion 15 temporarily becomes disconnected, the time during which the output of the first output portion 15 is regarded as connected is extended, and continuous bundling operation can be performed.

[0172] Figure 17 is a functional block diagram of still another modification example of the steel bar bundling machine of the first embodiment. The control portion 100C switches a first output portion connection flag F2 indicating that the output of the first output portion 15 is connected or disconnected. In addition, the control portion 100C performs the following control: based on whether the output of the first output portion 15 is disconnected or not, the first output portion connection flag F2, and the counting by the timer 101T, even if the output of the first output portion 15 is disconnected, the output of the first output portion 15 is regarded as connected for a certain period of time.

[0173] Figure 18 is a flowchart showing an example of the operation of still another modification example of the steel bar bundling machine of the first embodiment.

[0174] The control portion 100C sets the first output portion connection flag F2 to 0 in step SD1 of Figure 18 .

[0175] The operator holds the handle portion 304h of the steel bar bundling machine 1A with both hands. That is, the operator holds the holding portion 304R of the handle portion 304h with the right hand and holds the holding portion 304L of the handle portion 304h with the left hand.

[0176] If the operation portion 304t is held by the operator together with the holding portion 304R, the operation portion 304t is operated by being rotated with respect to the holding portion 304R. If the operation portion 304t is operated, the output of the first output portion 15 is connected in step SD2 of Figure 18 , and the control portion 100C detects that the output of the first output portion 15 is connected. If the control portion 100C detects that the output of the first output portion 15 is connected, the control portion 100C sets the first output portion connection flag F2 to 1 in step SD3.

[0177] The operator holds the handle portion 304h of the steel bar bundling machine 1A with both hands, aligns the position of the guide portion 5 with the intersection of the two steel bars S, and inserts the steel bars S into the insertion opening 53. The operator presses the steel bars S against the abutting portion 91A of the contact member 9A by moving the steel bar bundling machine 1A in the direction in which the steel bars S are inserted into the insertion opening 53.

[0178] The contact member 9A, by moving the rebar tying machine 1A in the direction of inserting the rebar S into the insertion port 53, receives a force along the direction of movement of the rebar tying machine 1A, and the abutment portion 91A is pressed down. As a result, the contact member 9A rotates about the axis 90A as a fulcrum by moving the abutment portion 91A along the first direction indicated by arrow A1. Figure 10B As shown, move to the work position.

[0179] If the contact member 9A moves to the working position, the displacement part 93A presses the second guide 52 in a direction close to the first guide 51 by the rotation of the connecting part 92A with the shaft 90A as the fulcrum, and the second guide 52 moves to the second position.

[0180] If the second guide 52 moves to the second position, then in Figure 18 In step SD4, the output of the second output unit 12A is turned on, and the control unit 100C detects that the output of the second output unit 12A is turned on.

[0181] In the control unit 100C, if the control unit 100C detects that the output of the second output unit 12A is turned on, then... Figure 18 In step SD5, it is determined whether the first output unit turn-on flag F2 is 1 or 0.

[0182] If the control unit 100C determines that the first output unit activation flag F2 is 1, then in Figure 18 In step SD6, the conveyor motor 31 and the torsion motor 80 are controlled to perform a series of actions to tie the reinforcing bar S with the wire W.

[0183] If the control unit 100C detects that the output of the first output unit 15 has become disconnected in step SD2 above, then in step SD7 it determines whether the first output unit on flag F2 is 1 or 0.

[0184] If the control unit 100C determines that the first output unit turn-on flag F2 is 1, it sets the timing value t of the timer 101T to 0 in step SD8, and starts timing based on the timer 101T in step SD9. Furthermore, the control unit 100C sets the first output unit turn-on flag F2 to 0 in step SD10, and then monitors whether the output of the second output unit 12A is turned on in step SD4.

[0185] If the control unit 100C detects that the output of the second output unit 12A has been turned on, then... Figure 18 In step SD5, it is determined whether the first output unit turn-on flag F2 is 1 or 0.

[0186] If the control unit 100C determines that the first output unit activation flag F2 is 0, then... Figure 18 In step SD11, it is determined whether the timing has started.

[0187] If the control section 100C determines that the timing has started, it determines in step SD12 whether or not a predetermined time has elapsed since the output from the first output section 15 became off and the timer 101T started the timing. Figure 18

[0188] If the control section 100C determines that the predetermined time has not elapsed since the output from the first output section 15 became off and the timer 101T started the timing, it controls the conveying motor 31 and the twisting motor 80 in step SD6 to perform the series of operations of binding the reinforcing bars S with the wire W.

[0189] If the control section 100C determines that the predetermined time has elapsed since the output from the first output section 15 became off and the timer 101T started the timing, it does not perform the binding operation and returns to step SD2.

[0190] In order to maintain the output from the first output section 15 as on, it is necessary to continuously hold the operation section 304t together with the holding sections 304R all the time. However, the position at which the holding sections 304R are held during work sometimes shifts, or the like. Thus, the output from the first output section 15 becomes unstable due to the output from the first output section 15 temporarily becoming off, or the like. If the output from the first output section 15 becomes unstable, there are cases in which the binding operation is performed and cases in which the binding operation is not performed, for the worker, although the same operation is being performed, and the work efficiency deteriorates. Therefore, the following control is performed: even if the output from the first output section 15 becomes off, the output from the first output section 15 is regarded as on within a predetermined time.

[0191] The predetermined time within which the binding operation can be performed after the output from the first output section 15 becomes off is set to be longer than the time during which the output from the first output section 15 becomes unstable and the output temporarily becomes off. Thus, it is possible to distinguish between "a case in which the output from the first output section 15 becomes off although the holding sections 304R are being held, the output from the first output section 15 being unstable, after the output from the first output section 15 becomes on" and "a case in which the holding of the holding sections 304R is stopped by the intention of the worker and the output from the first output section 15 becomes off".

[0192] <Example of reinforcing bar binding machine of second embodiment>

[0193] Figure 19 is a front view showing an example of the overall structure of the reinforcing bar binding machine of the second embodiment. The reinforcing bar binding machine IB of the second embodiment is provided with the handle section 304h having a pair of holding sections 304L, 304R that the worker can hold.

[0194] ​The handle portion 304h is provided with an operation portion 304tR in the grip portion 304R that is mainly held by the right hand. The operation portion 304tR is mounted to the grip portion 304R, for example, in a manner that enables rotation about an unillustrated shaft, and protrudes from the surface of the grip portion 304R. The operation portion 304tR is operated by turning with respect to the grip portion 304R, by being held by the worker together with the grip portion 304R.

[0195] In addition, the handle portion 304h is provided with an operation portion 304tL in the grip portion 304L that is mainly held by the right hand. The operation portion 304tL is mounted to the grip portion 304L, for example, in a manner that enables rotation about an unillustrated shaft, and protrudes from the surface of the grip portion 304L. The operation portion 304tL is operated by turning with respect to the grip portion 304L, by being held by the worker together with the grip portion 304L. Note that the other structures of the reinforcing bar tying machine 1B are the same as those of the reinforcing bar tying machine 1A of the first embodiment.

[0196] Figure 20 is a functional block diagram of the reinforcing bar tying machine of the second embodiment. The reinforcing bar tying machine 1B detects the outputs of the first output portion 15R operated by the operation of the operation portion 304tR, the first output portion 15L operated by the operation of the operation portion 304tL, and the second output portion 12A operated by the action of being pressed against by the reinforcing bar S through the contact member 9A, using the control portion 100D. The control portion 100D controls the conveyance motor 31 that drives the conveyance gear 30 and the twisting motor 80 that drives the twisting portion 7 and the like, in accordance with the outputs of the first output portion 15R, the first output portion 15L, and the second output portion 12A, and executes a series of actions of tying the reinforcing bar S using the wire W.

[0197] Next, the action of the reinforcing bar tying machine 1B of the second embodiment will be described. The worker holds the handle portion 304h of the reinforcing bar tying machine 1B with both hands. That is, the worker holds the grip portion 304R of the handle portion 304h with the right hand, and holds the grip portion 304L of the handle portion 304h with the left hand.

[0198] If the operation portion 304tR is held by the worker together with the grip portion 304R, the operation portion 304tR is operated by turning with respect to the grip portion 304R. If the operation portion 304tR is operated, the output of the first output portion 15R becomes on, and the control portion 100D detects that the output of the first output portion 15R has become on. In addition, if the operation portion 304tL is held by the worker together with the grip portion 304L, the operation portion 304tL is operated by turning with respect to the grip portion 304L. If the operation portion 304tL is operated, the output of the first output portion 15L becomes on, and the control portion 100D detects that the output of the first output portion 15L has become on.

[0199] The operator holds the handle portion 304h of the reinforcing bar tying machine 1B with both hands, aligns the position of the guide portion 5 with the intersection of the two reinforcing bars S, and inserts the reinforcing bars S into the insertion opening 53. The operator presses the reinforcing bars S against the abutting portion 91A of the contact member 9A by moving the reinforcing bar tying machine 1B in the direction in which the reinforcing bars S are inserted into the insertion opening 53.

[0200] The contact member 9A is pressed by the force in the direction in which the reinforcing bar tying machine 1B is moved by the movement of the reinforcing bar tying machine 1B in the direction in which the reinforcing bars S are inserted into the insertion opening 53. Thus, the contact member 9A is moved in the first direction indicated by the arrow Al by the abutting portion 91A and is pivoted about the shaft 90A, as shown in Figure 10B , to move to the working position.

[0201] If the contact member 9A moves to the working position, the displacement portion 93A presses the second guide 52 in the direction in which the first guide 51 is approached by the pivoting of the connecting portion 92A about the shaft 90A, and the second guide 52 moves to the second position.

[0202] If the second guide 52 moves to the second position, the output of the second output portion 12A becomes on, and the control portion 100D detects that the output of the second output portion 12A becomes on.

[0203] The control portion 100D controls the conveyance motor 31 and the twisting motor 80 to perform a series of operations for tying the reinforcing bars S with the wire W if the output of the second output portion 12A becomes on in the state in which the outputs of the first output portion 15R and the first output portion 15L both become on.

[0204] Note that the control portion 100D does not start the drive of the conveyance motor 31 and the twisting motor 80 even if the output of the second output portion 12A becomes on in the state in which the outputs of the first output portion 15R and the first output portion 15L both do not become on and the output of one of the first output portions becomes on.

[0205] On the other hand, the control portion 100D starts the drive of the conveyance motor 31 and the twisting motor 80 if the output of the second output portion 12A becomes on in the state in which the outputs of the first output portion 15R and the first output portion 15L both become on, the output of one of the first output portions becomes off, and the outputs of the first output portions both become on again.

[0206] Thus, even if the force to hold one of the holding portions 304R, 300L is temporarily weakened and the output of one of the output portions is temporarily turned off while both of the holding portions 304R, 300L are reliably held, the bundling operation can be performed if both of the holding portions 304R, 300L are reliably held. Note that, the control portion 100D can start the drive of the conveyance motor 31 and the twisting motor 80 if it is detected that the output of the second output portion 12A is turned on, in a state where the outputs of both of the first output portions 15R, 15L are turned off and the output of one of the first output portions is turned on.

[0207] <Example of steel reinforcement bundling machine of third embodiment>

[0208] Figure 21A 、 Figure 21B is a perspective view showing an example of the overall structure of the steel reinforcement bundling machine of the third embodiment, Figure 22 is a side view showing an example of the overall structure of the steel reinforcement bundling machine of the third embodiment.

[0209] The steel reinforcement bundling machine 1C of the third embodiment is provided with a sub-operation portion at the second main portion 302 or the joint portion 305 of the second main portion 302 and the connecting portion 303. In the steel reinforcement bundling machine 1C of the third embodiment, the sub-operation portion is provided at the holding portion 305h of the joint portion 305. Figure 21A 、 Figure 21B

[0210] The sub-operation portion 305t1 is an example of a first sub-operation portion, and is attached to the joint portion 305 so as to be able to rotate around an unillustrated shaft, for example, and protrudes from the surface of the holding portion 305h. The sub-operation portion 305t1 is operated by being held by the operator together with the holding portion 305h and being rotated with respect to the holding portion 305h.

[0211] In the steel reinforcement bundling machine 1C of the third embodiment, the sub-operation portion 305t2 is provided at the handle portion 320h of the second main portion 302. The sub-operation portion 305t2 is an example of a second sub-operation portion, and is operated by being pulled by the fingers of the hand that holds the handle portion 320h, for example. Note that, the other structures of the steel reinforcement bundling machine 1C are the same as those of the steel reinforcement bundling machine 1A of the first embodiment. Figure 22

[0212] Figure 23 is a functional block diagram of the steel reinforcement bundling machine of the third embodiment. The steel reinforcement bundling machine 1C detects the first output portion 15 operated by the operation of the operation portion 304t, the second output portion 12A operated by the action of being pressed against the steel reinforcement S by the contact member 9A, and the sub-operation portion 305t1 or 305t2 shown in Figure 21A 、 Figure 21B Figure 22 ​​​The output of the third output section 16 that operates in response to the operation of the sub-operation section 305t2 shown in the drawing. The control section 100E controls the conveyance motor 31 that drives the conveyance gear 30 and the twisting motor 80 that drives the twisting section 7 and the like in accordance with the outputs of the first output section 15, the second output section 12A, and the third output section 16, and performs a series of actions for bundling the reinforcing bars S with the wire W.

[0213] Next, the action of the reinforcing bar bundling machine 1C of the third embodiment will be described. Note that the bundling action performed while holding the handle section 304h with both hands is the same as that described in the first embodiment and the second embodiment. Figure 13 、 Figure 15 、 Figure 16 and the like. Figure 18

[0214] The reinforcing bar bundling machine 1C bundles the reinforcing bars S at the feet of the worker, and thus it is assumed that the reinforcing bar bundling machine 1C is used while holding the handle section 304h with both hands in a state in which the guide section 5 is directed downward and the worker stands. Thus, the operation section 304t is provided to the grip section 304R of the handle section 304h.

[0215] On the other hand, in a case in which the reinforcing bars S as the bundling targets do not contact each other at the crossing position and a gap is left (that is, in a case in which the upper surface of the reinforcing bar S on the other side does not abut on the lower surface of the reinforcing bar S on one side), the worker sometimes performs the bundling action while lifting the reinforcing bar S on one side or the other side in such a manner that the crossing reinforcing bars S contact each other (while correcting the position). In such a case, the worker assumes a posture in which the knees are bent and the worker crouches, and thus the grip section provided to the handle section 304h of the first main body section 301 to which the second main body section 302 is connected through the link section 303 is difficult to hold.

[0216] Therefore, the reinforcing bar bundling machine 1C is provided with the sub-operation section 305t1 at the joint section 305 of the second main body section 302 and the link section 303. Alternatively, the reinforcing bar bundling machine 1C is provided with the sub-operation section 305t2 to the second main body section 302.

[0217] In a case in which the reinforcing bar bundling machine 1C is in the state shown in Figure 21A 、 Figure 21B In a case in which the reinforcing bar bundling machine 1C is in the state shown in Figure 22

[0218] Thus, in a case in which the reinforcing bar bundling machine 1C is in the state shown in Figure 21A 、 Figure 21B Thus, in a case in which the reinforcing bar bundling machine 1C is in the state shown in Figure 22 ​​In the illustrated state, the sub-operation section 305t2 is operating, the output of the third output section 16 becomes on, and the control section 100E detects that the output of the third output section 16 has become on.

[0219] The operator aligns the position of the guide section 5 with the intersection of the two rebars S and inserts the rebars S into the insertion opening 53. The operator presses the rebars S against the abutting section 91A of the contact member 9A by moving the rebar tying machine 1C in the direction in which the rebars S are inserted into the insertion opening 53.

[0220] The contact member 9A is pressed by the abutting section 91A by the movement of the rebar tying machine 1C in the direction in which the rebars S are inserted into the insertion opening 53. Thus, the contact member 9A is rotated about the shaft 90A by moving in the first direction indicated by the arrow Al, and moves to the working position as indicated by the arrow Al. Figure 10B

[0221] If the contact member 9A moves to the working position, the displacement section 93A presses the second guide section 52 in the direction of approaching the first guide section 51 by the rotation of the linking section 92A about the shaft 90A, and the second guide section 52 moves to the second position.

[0222] If the second guide section 52 moves to the second position, the output of the second output section 12A becomes on, and the control section 100E detects that the output of the second output section 12A has become on.

[0223] The control section 100E controls the conveying motor 31 and the twisting motor 80 to perform a series of operations for tying the rebars S with the wire W if it detects that the output of the second output section 12A has become on in the state in which it detects that the output of the third output section 16 has become on.

[0224] Thus, even if the posture of the gripping section of the handle section 304h provided to the first main body section 301 cannot be held, the tying operation can be performed.

[0225] <Example of rebar tying machine of fourth embodiment>

[0226] Figure 24 is a side view showing an example of the overall structure of the rebar tying machine of the fourth embodiment. The rebar tying machine 1D of the fourth embodiment is provided with a handle section 330h for portability at the linking section 303 that links the first main body section 301 and the second main body section 302. The other structures are the same as those of the rebar tying machine 1C explained in the first embodiment, for example. Figure 21A 、 Figure 21B

[0227] ​​In the various embodiments of the rebar tying machine, the first main body 301 and the second main body 302 are connected by a long strip-shaped connecting part 303. The first main body 301 is equipped with a battery 310B, so it is heavy. On the other hand, the second main body 302 houses the motor for driving the conveying unit, the motor for driving the torsion unit, the wire reel, etc., so it is also heavy. Therefore, by providing a handle 330h for carrying at the connecting part 303 between the first main body 301 and the second main body 302, balance can be achieved on the first main body 301 side and the second main body 302 side, and the rebar tying machine 1D can be transported in a substantially horizontal state.

[0228] <An example of a rebar tying machine in the fifth embodiment>

[0229] Figure 25A , Figure 25B This is a side view showing the main parts of the rebar tying machine according to the fifth embodiment.

[0230] As in Figure 1 As described above, the rebar tying machine 1E is a rebar tying machine in which the first main body 301 and the second main body 302 are connected by a long strip-shaped connecting part 303. The rebar tying machine 1E includes a guide part 5 for guiding the rebar. The guide part 5 includes a first guide member 51 and a second guide member 52. The first guide member 51 and the second guide member 52 are mounted at the front end of the second main body 302 and extend in a first direction indicated by arrow A1. The second guide member 52 is provided opposite to the first guide member 51 in a second direction orthogonal to the first direction, indicated by arrow A2. The second guide member 52 can also be configured to move in both directions of approach and departure relative to the first guide member 51 by rotation about an axis (not shown). The guide part 5 includes a guide part 59 for guiding the rebar towards the insertion / extraction port 53. The guide part 59 is provided on the top end side of the first guide member 51.

[0231] The rebar tying machine 1E includes a contact member 9B for abutting a rebar S inserted into an insertion / removal port 53 between a first guide member 51 and a second guide member 52. The contact member 9B is mounted to the second main body 302 via a cover portion 11 and is rotatably supported on a shaft 90B. An abutment portion 91B is provided on one side of the contact member 9B relative to the shaft 90B for abutting the rebar S. The abutment portion 91B of the contact member 9B extends from the shaft 90B in the second direction indicated by arrow A2 toward the direction where the first guide member 51 is provided.

[0232] The contact member 9B is provided with a shaft 90B near the middle between the first guide 51 and the second guide 52. In addition, the contact member 9B is provided with a pair of abutting portions 91B from the vicinity of the portion supported by the shaft 90B to the first guide 51 side between the first guide 51 and the second guide 52. The abutting portions 91B are provided on both sides in the third direction at intervals through which the wire W bundling the reinforcing bars S can pass. The abutting portions 91B extend to both sides of the first guide 51.

[0233] The contact member 9B rotates with the shaft 90B as a fulcrum with respect to the second main body portion 302, and moves between a standby position in which the abutting portions 91B project from the cover portion 11 toward the insertion opening 53 as shown in FIG. 6, and a working position in which the abutting portions 91B approach the cover portion 11 as shown in FIG. 7. Figure 25A Figure 25B The contact member 9B is urged in the direction in which it moves toward the standby position by an unillustrated urging member, and is held in a state in which it moves toward the standby position.

[0234] If two reinforcing bars S that cross each other are put into the insertion opening 53, one reinforcing bar S is positioned on one side of the first guide 51, and the other reinforcing bar S is positioned on the other side of the first guide 51. In response to this, the pair of abutting portions 91B of the contact member 9B extend from between the first guide 51 and the second guide 52 to both sides of the first guide 51. Thus, the reinforcing bars S that are put into the insertion opening 53 reliably abut against the abutting portions 91B, and the contact member 9B can be moved toward the working position. In addition, the abutting portions 91B of the contact member 9B move in the first direction indicated by the arrow Al by the turning action with the shaft 90B as a fulcrum. Thus, by the action of moving the reinforcing bar tying machine IE in the direction in which the reinforcing bars S are put into the insertion opening 53, the abutting portions 91B can be pressed without moving the reinforcing bar tying machine IE in another direction in order to operate the contact member 9B.

[0235] The reinforcing bar tying machine IE is provided with a second output portion 14A that detects that the contact member 9B has moved to the working position. As shown in FIG. 6, if the contact member 9B moves toward the standby position, the abutting portions 91B of the contact member 9B move in the direction away from the movable member 140. In this way, the output of the second output portion 14A in the state in which the contact member 9B moves to the standby position is set to OFF. In response to this, by the abutting portions 91B being pressed by the reinforcing bars and the contact member 9B moving toward the working position as shown in FIG. 7, the abutting portions 91B of the contact member 9B move in the direction in which the movable member 140 is pressed. In this way, the output of the second output portion 14A in the state in which the contact member 9B moves to the working position is set to ON. Figure 25A Figure 25B

[0236] Figure 12 ​​​The control section 100A shown, in a state where the output of the first output section 15 is detected to be on by the operation section 304t being operated, if the output of the second output section 14A is detected to be on by the contact member 9B moving to the working position, as described above, controls the conveying motor 31 and the twisting motor 80 to perform a series of actions of binding the reinforcing bars S with the wire W.

[0237] In addition, Figure 14 The control section 100B shown, if the output of the first output section 15 is detected to be on by the operation section 304t being operated, starts counting based on the timer 101T, and during a prescribed time, if the output of the second output section 14A is detected to be on, as described above, controls the conveying motor 31 and the twisting motor 80 to perform a series of actions of binding the reinforcing bars S with the wire W. Alternatively, after the binding action is performed, the count value is cleared, and after the binding action is performed, during a prescribed time, if the output of the second output section 14A is detected to be on, the binding action is performed. In addition, Figure 17 The control section 100C shown, after the output of the first output section 15 is detected to be on by the operation section 304t being operated, if the output of the first output section 15 is detected to be off, starts counting based on the timer 101T. Also, during a prescribed time from the output of the first output section 15 being detected to be off, if the output of the second output section 14A is detected to be on, the binding action is performed. Note that, Figure 20 The control of the control section 100D shown, Figure 23 The control of the control section 100E shown is the same.

[0238] <Example of Reinforcing Bar Binding Machine of Sixth Embodiment>

[0239] Figure 26 is a functional block diagram of the reinforcing bar binding machine of the sixth embodiment. The reinforcing bar binding machine 1F is provided with a detection section 103 that detects reinforcing bars S. The detection section 103 is composed of a contact-type sensor such as a piezoelectric element, a non-contact-type sensor such as an image sensor, and the like, and detects the presence or absence of the reinforcing bars S. Figure 1 The first guide 51 and the second guide 52 shown in FIGS. 1 to 3, and the like are inserted into the reinforcing bars S at the insertion opening 53 between the first guide 51 and the second guide 52.

[0240] The control section 100F executes the bundling operation described above if the output of the detection section 103 becomes ON by the insertion of the reinforcing bar S into the insertion opening 53 when the output of the first output section 15 is detected to be ON by the operation of the operation section 304t. Alternatively, the control section 100F starts counting based on a timer not shown, and executes the bundling operation if the output of the detection section 103 is detected to be ON during a prescribed time after the output of the first output section 15 is detected to be ON by the operation of the operation section 304t. Alternatively, the control section 100F starts counting based on a timer after the counting value is cleared after the execution of the bundling operation, and executes the bundling operation if the output of the detection section 103 is detected to be ON during a prescribed time after the execution of the bundling operation. Further, the control section 100F starts counting based on a timer not shown if the output of the first output section 15 is detected to be OFF after the output of the first output section 15 is detected to be ON by the operation of the operation section 304t. Moreover, the control section 100F executes the bundling operation if the output of the detection section 103 is detected to be ON during a prescribed time from the detection of the output of the first output section 15 to be OFF.

[0241] <Example of reinforcing bar bundling machine of seventh embodiment>

[0242] Figure 27 is a functional block diagram of a reinforcing bar bundling machine of a seventh embodiment, Figure 28A is a side view showing an example of the overall structure of a reinforcing bar bundling machine of the seventh embodiment, Figure 28B is a rear view showing an example of the overall structure of a reinforcing bar bundling machine of the seventh embodiment. The reinforcing bar bundling machine 1G of the seventh embodiment has a first main body section 301 configured to be able to be held by hand, a second main body section 302 having a mechanism for bundling a reinforcing bar S with a wire W, and a long strip-shaped connection section 303 connecting the first main body section 301 and the second main body section 302. The first main body section 301 has a pair of handle sections 304hL, 304hR that an operator can hold. Further, the first main body section 301 has a power switch 110 that performs the operation of turning the power of the reinforcing bar bundling machine 1A on and off, and an operation section 111 having a dial or the like that can adjust the bundling force.

[0243] The reinforcing bar bundling machine 1G has an output section 15G that outputs a signal when the second guide 52 moves to the second position or the contact member 9A moves to the working position, and an orientation detection sensor 350 that outputs a signal when the orientation of the reinforcing bar bundling machine 1G, that is, the orientation of the guide section 5 with respect to the direction of gravity. The reinforcing bar bundling machine 1G detects the outputs of the output section 15G and the orientation detection sensor 350 using a control section 100G. The reinforcing bar bundling machine 1G does not have an operation section in the handle section 304h.

[0244] The control section 100G controls the conveying motor 31 that drives the conveying gear 30 and the twisting motor 80 that drives the twisting section 7 and the like in accordance with the output of the output section 15G and the output of the orientation detection sensor 350, and performs a series of operations for bundling the reinforcing bars S with the wire W.

[0245] In this example, the output of the output section 15G in the state where the contact member 9A is moved to the standby position is set to OFF. In addition, the output of the output section 15G in the state where the contact member 9A is moved to the working position is set to ON.

[0246] In addition, the output of the orientation detection sensor 350 in the state where the orientation of the reinforcing bar bundler 1G is within the prescribed bundling allowable range El in which the guide section 5 is downward is set to ON, and the output of the orientation detection sensor 350 in the state where the orientation of the reinforcing bar bundler 1A is outside the prescribed bundling allowable range E2 is set to OFF.

[0247] Figure 29A is a perspective view showing the orientation detection sensor of the first embodiment. The orientation detection sensor 350A of the first embodiment is an example of an orientation detection section, and is provided with an acceleration sensor 351, a switch 352 that switches whether or not the detection by the acceleration sensor 351 is effective, and an operation section 353 that switches the ON and OFF of the switch 352.

[0248] The orientation detection sensor 350A is provided to the second main body section 302. In this example, the orientation detection sensor 350A is provided to the electrical equipment section 360 shown in Figure 28A The orientation detection sensor 350A is provided to the electrical equipment section 360 shown in

[0249] The acceleration sensor 351 detects the orientation of the reinforcing bar bundler 1G by detecting the acceleration in at least one axis direction. Whether or not the detection by the acceleration sensor 351 is effective is switched by switching the ON and OFF of the switch 352 with the operation section 353.

[0250] Figure 29B is a perspective view showing the orientation detection sensor of the second embodiment. The orientation detection sensor 350B of the second embodiment is an example of an orientation detection section that constitutes a gravitational sensor, and is provided with a light sensor 354, a pendulum 355 that is detected by the light sensor 354, and an operation section 356 that switches whether or not the operation of the pendulum 355 is effective.

[0251] The orientation detection sensor 350B is provided to the second main body section 302. In this example, the orientation detection sensor 350B is provided to the electrical equipment section 360 shown in Figure 28A The orientation detection sensor 350B is provided to the electrical equipment section 360 shown in

[0252] The swing 355 pivots on the shaft 355a in accordance with the orientation of the reinforcing bar tying machine 1G, and detects the orientation of the reinforcing bar tying machine 1G by switching whether or not the detection by the optical sensor 354 is detected. Whether or not the operation of the swing 355 is made effective or ineffective based on the detection by the optical sensor 354 is switched by switching whether or not the swing 355 operates using the operation section 356.

[0253] Figure 30A is a flowchart showing an example of the operation of the reinforcing bar tying machine according to the seventh embodiment, and next, an example of the operation of tying the reinforcing bar S with the wire W by the reinforcing bar tying machine 1G will be described. The reinforcing bar tying machine 1G ties the reinforcing bar S at the feet of the operator, and therefore is used in a state in which the guide section 5 is directed downward and the operator stands. The operator holds the handle section 304h of the reinforcing bar tying machine 1G with both hands, aligns the position of the guide section 5 with the intersection of the two reinforcing bars S, and inserts the reinforcing bar S into the insertion opening 53.

[0254] In the operation of inserting the reinforcing bar S into the insertion opening 53 between the first guide 51 and the second guide 52, the reinforcing bar tying machine 1G moves in the first direction indicated by the arrow Al. By the relative movement of the reinforcing bar tying machine 1G and the reinforcing bar S, the contact member 9A is pressed by the force in the first direction, and moves to the working position.

[0255] If the contact member 9A moves to the working position, the output of the output section 15G changes from off to on. In addition, if the contact member 9A moves to the working position, the second guide 52 moves to the second position.

[0256] The control section 100G detects whether or not the orientation of the reinforcing bar tying machine 1G is within the prescribed tying allowable range El with the orientation detection sensor 350 being on in step SF1 of Figure 30A

[0257] The control section 100G, in a state in which the orientation detection sensor 350 is on and the orientation of the reinforcing bar tying machine 1G is within the prescribed tying allowable range El, detects whether or not the output section 15G is on by the contact member 9A moving to the working position in step SF2 of Figure 30A

[0258] The control section 100G, in a state in which the orientation detection sensor 350 is not on (i.e., the orientation detection sensor 350 is off) and the orientation of the reinforcing bar tying machine 1G is outside the prescribed tying allowable range E2, detects whether or not the output section 15G is on by the contact member 9A moving to the working position in step SF4 of Figure 30A ​​​

[0259] After the control unit 100G is notified of the binding failure, if it moves to the standby position via the contact member 9A and detects that the output unit 15G is disconnected, and then switches the power supply on and off via the operation of the power switch 110, it returns to step SF1. Then, with the orientation detection sensor 350 turned on and the orientation of the rebar binding machine 1G within the specified binding tolerance range E1, if it moves to the working position via the contact member 9A and detects that the output unit 15G is turned on, the binding operation is performed.

[0260] Alternatively, if the control unit 100G detects that the output unit 15G is disconnected after the binding is not notified, it returns to step SF1. Then, with the orientation detection sensor 350 turned on and the orientation of the rebar binding machine 1G within the specified binding tolerance range E1, if the output unit 15G is turned on after the contact member 9A is moved to the working position, the binding operation is performed.

[0261] Alternatively, after the control unit 100G detects that the binding is not working, it returns to step SF1. Then, with the orientation detection sensor 350 turned on and the orientation of the rebar binding machine 1G within the specified binding tolerance range E1, if the output unit 15G is detected to remain on when the contact member 9A is moved to the working position, the binding action is performed.

[0262] Figure 30B This is a flowchart showing another example of the operation of the rebar tying machine according to the seventh embodiment. Next, another example of the operation of tying the rebar S with wire W by the rebar tying machine 1G will be described.

[0263] Control unit 100G Figure 30B In step SG1, the output unit 15G is detected to be on when the contact member 9A moves to the working position. Figure 30B In step SG2, it is detected whether the orientation of the rebar tying machine 1G is within the specified tying allowable range E1, and the orientation detection sensor 350 is turned on.

[0264] When the control unit 100G moves to the working position via the contact member 9A and detects that the output unit 15G is turned on, if the orientation detection sensor 350 is turned on because the orientation of the rebar tying machine 1G is within the specified tying allowable range E1, then in step SG3, the control unit controls the conveying motor 31 and the torsion motor 80 to perform a series of actions to tie the rebar S with the wire W.

[0265] The control section 100G, in a state where the output section 15G is detected to be on by the contact member 9A moving to the working position, if the orientation detection sensor 350 is detected to be off toward the orientation detection sensor 350 (i.e., the orientation of the steel bar tying machine 1G is outside the prescribed tying allowable range E2), notifies that the tying operation cannot be performed in step SG4 by the lighting of a lamp not shown, sound, or the like.

[0266] The control section 100G, after the tying impossibility notification, if the output section 15G is detected to be off by the contact member 9A moving to the standby position and the power is turned off or on by the operation of the power switch 110, returns to step SG1. Then, if the output section 15G is detected to be on by the contact member 9A moving to the working position and the orientation detection sensor 350 is detected to be on toward the orientation detection sensor 350, the tying operation is performed.

[0267] Alternatively, the control section 100G, after the tying impossibility notification, if the output section 15G is detected to be off by the contact member 9A moving to the standby position, returns to step SG1. Then, if the output section 15G is detected to be on by the contact member 9A moving to the working position and the orientation detection sensor 350 is detected to be on toward the orientation detection sensor 350, the tying operation is performed.

[0268] Alternatively, the control section 100G, after the tying impossibility notification, returns to step SG1. Then, if the output section 15G is detected to be on by the contact member 9A moving to the working position and the orientation detection sensor 350 is detected to be on toward the orientation detection sensor 350, the tying operation is performed.

[0269] Note that, it can also be that, in a state where the orientation detection sensor 350 is detected to be off toward the orientation detection sensor 350 with the orientation of the steel bar tying machine 1G being outside the prescribed tying allowable range E2, if the output section 15G is detected to be on by the contact member 9A moving to the working position, various settings of the steel bar tying machine 1G can be performed. Also, it can be that, in a state where the detection of the orientation detection sensor 350 (350A, 350B) is made invalid, the tying operation is not performed, and the settings of the steel bar tying machine 1G can be performed by the operation of the contact member 9A. Also, it can be that, in a state where the detection of the orientation detection sensor 350 (350A, 350B) is made valid, in a case where the orientation cannot be detected from the output of the orientation detection sensor 350 (350A, 350B), it is determined that a failure of the orientation detection sensor 350 (350A, 350B) has occurred, and notification is performed.

[0270] Further, it can also be configured to be able to switch the bundling allowable range. For example, it can also be configured such that the steel bar bundling machine 1G is provided with an operation section 111 such as a dial that is able to adjust the bundling force, and the bundling allowable range is able to be switched using the operation section 111. Further, it can also be configured to be able to switch the bundling allowable range by setting based on the operation of the contact member 9A, turning on and off of the power supply based on the operation of the power supply switch 110, and the like. Furthermore, it can also be configured to be able to switch the bundling allowable range by a combination of the operation of the operation section 111, the operation of the contact member 9A, turning on and off of the power supply based on the operation of the power supply switch 110, and the like.

[0271] In the steel bar bundling machine 1G of the seventh embodiment, the handle portion 304h is configured not to have an operation section, and in addition to the contact member 9A moving to the work position or the second guide 52 moving to the second position, the execution of the bundling operation is switched according to the orientation of the steel bar bundling machine 1G. Thereby, the operation becomes simple, and the occurrence of a false operation can be suppressed.

[0272] Note that, by using an acceleration sensor as the orientation detection sensor 350, it is possible to detect an impact applied to the steel bar bundling machine 1G. Then, it can also be configured such that, if a predetermined impact is detected to be applied to the steel bar bundling machine 1G, the control section 100G determines that the steel bar S has abutted and executes the bundling operation. In this case, it is not necessary to provide a detection section that detects the movement of the contact member 9A to the work position or the movement of the second guide 52 to the second position.

[0273] This application is based on Japanese Patent Application No. 2018-168249 filed on September 7, 2018, and Japanese Patent Application No. 2019-156058 filed on August 28, 2019, the contents of which are incorporated herein by reference in its entirety.

[0274] Explanation of Reference Signs

[0275] 1A, 1B, 1C, 1D, 1E, 1F, 1G…steel bar tying machine, 11…cover portion, 12A, 14A…second output portion, 120…movable member, 15, 15R, 15L…first output portion, 15G…output portion, 16…third output portion, 2…accommodation portion, 20…thread reel, 3…conveying portion, 30…conveying gear, 31…conveying motor, 4…restriction portion, 42…restriction member, 43…restriction member, 44…transmission mechanism, 5…guiding portion, 51…first guide member, 51g…guiding surface, 51h…groove portion, 51c…end portion, 52…second guide member, 52a…side guide member, 52b…shaft, 52c…end portion, 53…insertion / extraction opening, 54…urging member, 59…inducing portion, 6…cutting portion, 60…fixed blade portion, 60a…opening, 61…movable blade portion, 62…transmission mechanism, 7…twisting portion, 70…engagement portion, 71…working portion, 8…driving portion, 80…twisting motor, 81…speed reducer, 82…rotary shaft, 83…moving member, 9A, 9B…contact member, 90A, 90B…shaft, 91A, 91B…abutting portion, 92A…linking portion, 93A…displacement portion, 100A, 100B, 100C, 100D, 100E, 100G…control portion, 101T…timer, 103…detection portion, 110…power switch, 111…operation portion, 301…first main body portion, 302…second main body portion, 303…linking portion, 304h…handle portion, 304L, 304R…grip portion, 304t, 304tR, 304tL…operation portion, 305…engaging portion, 305h…grip portion, 305t1…sub operation portion (first sub operation portion), 305t2…sub operation portion (second sub operation portion), 320h…handle portion, 350 (350A, 350B)…orientation detection sensor (orientation detection portion), W…thread.

Claims

1. A strapping machine, comprising: The first main body has an operating section that can be operated by the operator; The second main body has a conveying section for conveying threads, a guiding section for guiding the threads conveyed by the conveying section to the surrounding area of ​​the object to be bound, and a twisting section for twisting the threads guided by the guiding section to bind the object to be bound. A long, narrow connecting portion connects the first main body portion and the second main body portion; The first output unit detects the operation of the operation unit and outputs a first signal; The second output unit detects that the object to be bundled has been placed into the delivery path of the thread guided by the guide unit and outputs a second signal; and If the control unit detects the first signal output from the first output unit and the second signal output from the second output unit, it controls the conveying unit and the twisting unit to perform a binding operation. If the control unit detects the second signal and executes the binding action during the period from the detection of the first signal until a predetermined time has elapsed, even if the output of the first signal becomes disconnected.

2. The strapping machine according to claim 1, wherein, After detecting the second signal, the control unit will not perform the binding action even if it detects the first signal.

3. The strapping machine according to claim 1, wherein, It has an abutment portion for the object to be bundled to abut against. If the object to be bundled comes into contact with the contacting part, the second output part outputs the second signal.

4. The strapping machine according to claim 1, wherein, The connecting part includes a first operating part that can be operated by an operator. The strapping machine has a third output unit that outputs a third signal upon detecting the operation of the first auxiliary operation unit. If the control unit detects the third signal output from the third output unit and the second signal output from the second output unit, it executes the binding action.

5. The strapping machine according to claim 1, wherein, The second main body has a second auxiliary operating unit that can be operated by the operator. The strapping machine has a third output unit that outputs a third signal upon detecting the operation of the second auxiliary operation unit. If the control unit detects the third signal output from the third output unit and the second signal output from the second output unit, it executes the binding action.

6. A strapping machine, comprising: The first main body has an operating section that can be operated by the operator; The second main body has a conveying section for conveying threads, a guiding section for guiding the threads conveyed by the conveying section to the surrounding area of ​​the object to be bound, and a twisting section for twisting the threads guided by the guiding section to bind the object to be bound. A long, narrow connecting portion connects the first main body portion and the second main body portion; The first output unit detects the operation of the operation unit and outputs a first signal; The second output unit detects that the object to be bundled has been placed into the delivery path of the thread guided by the guide unit and outputs a second signal; and If the control unit detects the first signal output from the first output unit and the second signal output from the second output unit, it controls the conveying unit and the twisting unit to perform a binding operation. During the period from the execution of the binding action until a predetermined time has elapsed, if the output of the first signal is disconnected, the control unit will execute the binding action if the second signal is detected.

7. The strapping machine according to claim 6, wherein, After detecting the second signal, the control unit will not perform the binding action even if it detects the first signal.

8. The strapping machine according to claim 6, wherein, It has an abutment portion for the object to be bundled to abut against. If the object to be bundled comes into contact with the contacting part, the second output part outputs the second signal.

9. The strapping machine according to claim 6, wherein, The connecting part includes a first operating part that can be operated by an operator. The strapping machine has a third output unit that outputs a third signal upon detecting the operation of the first auxiliary operation unit. If the control unit detects the third signal output from the third output unit and the second signal output from the second output unit, it executes the binding action.

10. The strapping machine according to claim 6, wherein, The second main body has a second auxiliary operating unit that can be operated by the operator. The strapping machine has a third output unit that outputs a third signal upon detecting the operation of the second auxiliary operation unit. If the control unit detects the third signal output from the third output unit and the second signal output from the second output unit, it executes the binding action.

11. A strapping machine, comprising: The first main body has an operating section that can be operated by the operator; The second main body has a conveying section for conveying threads, a guiding section for guiding the threads conveyed by the conveying section to the surrounding area of ​​the object to be bound, and a twisting section for twisting the threads guided by the guiding section to bind the object to be bound. A long, narrow connecting portion connects the first main body portion and the second main body portion; The first output unit detects the operation of the operation unit and outputs a first signal; The second output unit detects that the object to be bundled has been placed into the delivery path of the thread guided by the guide unit and outputs a second signal; and If the control unit detects the first signal output from the first output unit and the second signal output from the second output unit, it controls the conveying unit and the twisting unit to perform a binding operation. If the control unit detects the second signal while the first signal is no longer detected until a predetermined time has elapsed, and the output of the first signal becomes disconnected, the binding action is performed.

12. The strapping machine according to claim 11, wherein, After detecting the second signal, the control unit will not perform the binding action even if it detects the first signal.

13. The strapping machine according to claim 11, wherein, It has an abutment portion for the object to be bundled to abut against. If the object to be bundled comes into contact with the contacting part, the second output part outputs the second signal.

14. The strapping machine according to claim 11, wherein, The connecting part includes a first operating part that can be operated by an operator. The strapping machine has a third output unit that outputs a third signal upon detecting the operation of the first auxiliary operation unit. If the control unit detects the third signal output from the third output unit and the second signal output from the second output unit, it executes the binding action.

15. The strapping machine according to claim 11, wherein, The second main body has a second auxiliary operating unit that can be operated by the operator. The strapping machine has a third output unit that outputs a third signal upon detecting the operation of the second auxiliary operation unit. If the control unit detects the third signal output from the third output unit and the second signal output from the second output unit, it executes the binding action.

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