JP2021035860A - Binding machine - Google Patents

Abstract

To provide a binding machine having a highly durable staple driver which is hardly broken even when repeatedly used.SOLUTION: In a binding machine (10), a staple driver (32) for ejecting a staple (ST) is attached to a main handle (20) of the binding machine (10). The staple driver (32) has: a shooting part (33) extending in a direction away from the main handle (20) and ejecting the staple (ST) toward a clincher (54); and a mounting part (34) for attaching the shooting part (33) to the main handle (20). The mounting part (34) extends in a longitudinal direction (X) of the main handle (20) from side edges (33L and 33R) of the shooting part (33).SELECTED DRAWING: Figure 11

Description

The present invention relates to a binding machine.

A horticultural binding machine is used for binding work when cultivating agricultural products. For example, in the cultivation of crops such as cucumbers, grapes, tomatoes, pears, and plums, horticultural binding machines are used to bind plant vines and stems to stanchions and nets. The binding machine is equipped with a staple driver for ejecting staples one by one.

Patent Document 1 describes a horticultural binding machine capable of suppressing a dimensional change in the ejection port of a staple magazine. FIG. 4 of this document shows a plate-shaped screwdriver 78 for stamping staples. The staple driver 78 has a mechanical connecting portion (a portion attached to the binding machine) supported by a tape holder 44 laid along the longitudinal direction of the binding machine main body 40, and a staple magazine portion bent from the mechanical connecting portion. It is formed in an L shape having a launching portion extending toward 60.

JP-A-2017-222403

However, in the case of a binding machine that binds using a binding tape, the load associated with the operation of penetrating the staples through the binding tape and binding the binding tape is extremely small. Therefore, the force acting on the staple driver from the clincher when the operator grasps the operation handle is a load applied to the bent portion of the staple driver. Therefore, the bent portion of the staple driver may be damaged.

Therefore, an object of the present invention is to provide a binding machine provided with a highly durable staple driver that is not easily damaged even after repeated use.

The binding machine (10) according to one aspect of the present invention includes a main handle (20) in which staples (ST) are housed, and a staple driver (ST) capable of launching staples (ST) supported by the main handle (20). 32) and a clincher arm (50) rotatably attached to the main handle (20). The clincher arm (50) has a clincher (54) that clinches the staples (ST) launched by the staple driver (32). The staple driver (32) extends away from the main handle (20) and has a launch portion (33) for launching the staple (ST) toward the clincher (54) and a launch portion (33) as the main handle. It has a mounting portion (34) for mounting on (20). The mounting portion (34) is configured to extend from the side edges (33L, 33R) of the launching portion (33) in the longitudinal direction (X) of the main handle (20).

In the above aspect, the staple driver (32) may be displaceably attached to the main handle (20).

In the above embodiment, the clincher arm (50) has a closing direction (θ2) in which the angle between the clincher arm (50) and the main handle (20) becomes smaller, and an opening direction (θ2) that opens in the direction opposite to the closing direction (θ2). The staple driver (32) may be provided so as to be rotatable between the staple (θ1) and the staple (ST) when the staple driver (32) is rotated in the closing direction (θ2). The staple driver (32) is in a state where the end portion (332) arranged on the main handle (20) side of the launch portion (33) rotates the clincher arm (50) in the closing direction (θ2). , May be located at the first position (P1). In a state where the end portion (332) is rotated in the opening direction (θ1) opposite to the closing direction of the clincher arm (50), the tip portion (20) of the main handle (20) is more than the first position (P1). It may be displaceably attached to the main handle (20) so as to be located at the second position (P2) close to 201).

In the above aspect, the main handle (20) has a washer member (35) disposed between the staple driver (32) and having a surface (35A) on which the staple driver (32) slides. May be good.

In the above aspect, the washer member (35) may have a regulating portion (35S) that regulates the staple driver (32) from moving away from the main handle (20).

In the above aspect, the regulating portion (35S) may be a recess (35SS) into which the staple driver (32) is fitted.

In the above aspect, the recess (35SS) may be formed on the surface (35A).

In the above aspect, the regulating portion (35S) may have a penetrating portion (35S) penetrating the front surface (35A) and the back surface (35B) opposite to the front surface (35A). The launching portion (33) may penetrate the penetrating portion (35S).

In the above embodiment, the launching portion (33) includes a narrow portion (332N) penetrating the penetrating portion (35S) and a wide portion (332W) formed wider than the narrow portion (332N). You may have. At least a part of the wide portion (332W) may face the back surface (35B).

In the above aspect, the embossed portion (33) may have an opening (33S) into which the washer member (35) can be fitted at a position facing the washer member (35). The restricting portion (352) may restrict the staple driver (32) from moving away from the main handle (20) by fitting the washer member (35) into the opening (33S).

In the above aspect, the embossed portion (33) may have a recess (33S) into which the washer member (35) can be fitted at a position facing the washer member (35). The restricting portion (352) may restrict the staple driver (32) from moving away from the main handle (20) by fitting the washer member (35) into the recess (33S).

In the above aspect, the main handle (20) may have urging members (36, 37). The urging means (36, 37) urges the staple driver (32) in the first direction (X1) toward the tip (201) of the main handle (20) and approaches the main handle (20). You may urge in the second orientation (Z2).

According to the present invention, it is possible to provide a binding machine provided with a highly durable staple driver that is not easily damaged even after repeated use.

FIG. 1 is a right side view showing an example of the binding machine 10 according to the embodiment of the present invention. FIG. 2 is a cross-sectional view of the binding machine 10 in the standby state. FIG. 3 is a cross-sectional view of the binding machine 10 in a state of grasping the tape TP. FIG. 4 is a cross-sectional view of the binding machine 10 in a state where the tape TP is pulled out. FIG. 5 is a cross-sectional view of the binding machine 10 with the object to be bound inserted. FIG. 6 is a cross-sectional view of the binding machine 10 in a state where the staple ST is launched. FIG. 7 is a cross-sectional view of the binding machine 10 in a state where the staple ST is being launched. FIG. 8 is a cross-sectional view of the binding machine 10 in a state where the staple ST has been launched. FIG. 9 is an enlarged cross-sectional view showing the staple driver 32 in the state where the staple ST shown in FIG. 6 has started to be launched. FIG. 10 is an enlarged cross-sectional view showing the staple driver 32 in a state where the staple ST shown in FIG. 8 has been launched. FIG. 11 is a perspective view of the staple driver 32 shown in FIG. FIG. 12 is a perspective view showing the staple driver 32 according to the second embodiment of the present invention. FIG. 13 is a perspective view showing the staple driver 32 according to the third embodiment of the present invention. FIG. 14 is a plan view showing the washer member 35 shown in FIG. FIG. 15 is a front view showing the staple driver 32 shown in FIG. FIG. 16 is a perspective view showing the staple driver 32 according to the fourth embodiment of the present invention. FIG. 17 is a cross-sectional view showing a staple driver 32 according to a fifth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are examples for explaining the present invention, and the present invention is not intended to be limited only to the embodiments. FIG. 1 is a right side view of the horticultural binding machine 10 according to the present embodiment. FIG. 2 is a cross-sectional view of the binding machine 10 shown in FIG.

In the present embodiment, for convenience, the tape holder 28A extends from the tape magazine unit 26 in which the tape TP for binding is housed, and the tape guide 28B provided at the tip of the binding machine 10 from which the tape TP is pulled out. The side facing toward (the right side of the paper in FIG. 1) may be referred to as "front", and the opposite side (left side of the paper in FIG. 1) may be referred to as "rear".

Further, the side from the tape guide 28B in the standby state toward the tape gripping unit 56 (upper side of the paper surface in FIG. 1) may be referred to as "upper side", and the opposite side (lower side of the paper surface in FIG. 1) may be referred to as "lower side". The main configuration of the binding machine 10 will be outlined below. After that, the characteristic structure of the binding machine 10 will be described in detail.

The horticultural binding machine 10 according to the present embodiment can be used, for example, for attracting and binding agricultural products (an example of "binding object S"). The binding machine 10 includes a main handle 20, a staple magazine unit 22 rotatably attached to the main handle 20, a clincher arm 50 rotatably attached to the main handle 20, and a clincher arm 50. It is provided with an operation handle 70 that is rotatably attached to the object.

The main handle 20 is a member formed in an elongated linear shape. The main handle 20 includes a tape transport unit 28, a tape cutting portion 30, and a staple driver 32. A tape magazine unit 26 is attached to the rear end of the main handle 20. The main handle 20 and the tape magazine unit 26 may be integrally formed.

The tape magazine unit 26 refers to a tape TP wound on a reel (hereinafter, the wound tape TP may be referred to as a tape reel TR (an example of a “wound binding tape”)). It is a mechanism for accommodating. As shown in FIG. 1 and the like, the tape magazine unit 26 is provided at the rear end of the main handle 20.

The tape transfer unit 28 includes a tape holder 28A and a tape guide 28B. The tape holder 28A is a path for transporting the tape TP from the tape magazine unit 26 to the tape guide 28B, and is laid along the longitudinal direction X of the main handle 20. The tape holder 28A includes a bottom portion facing one surface of the tape TP and a lid portion facing the other surface of the tape TP (hereinafter, the other surface of the tape TP may be referred to as a "back surface"). There is. The bottom portion and the lid portion are configured to be openable and closable, for example, with one side along the longitudinal direction X as a fulcrum.

The tape guide 28B (see FIGS. 2 to 8) is a member for guiding the tip of the tape TP upward from the tape guide 28B and pulling it out. The tape guide 28B is rotatably provided at the front end of the tape holder 28A. The tape guide 28B has a wall surface facing at least a part of each of the front surface, the back surface, and both side portions of the tape TP so that the inserted tape TP does not easily come off.

The tape cutting portion 30 includes a cutting blade 30A for cutting the tape TP and a lock mechanism 30B for locking and unlocking the cutting blade 30A. When replacing the cutting blade 30A, the lock mechanism 30B unlocks the cutting blade 30A and removes the cutting blade 30A. The cutting blade 30A is rotatably provided integrally with the tape guide 28B, and is urged by an elastic member (not shown) so as to face rearward during the standby state and the gripping operation. When executing the binding operation, the tape guide 28B is pressed against the tip 60B of the tape catch 60, and the tape guide 28B and the cutting blade 30A rotate against the urging force of an elastic member (not shown), and the cutting blade 30A The upper part of the cutting edge of the blade moves so as to face the tape TP.

Various mechanisms can be adopted as the mechanism for cutting the tape TP. For example, the tape TP may be cut by rotating the tape TP in conjunction with the tape guide 28B, or the tape guide 28B and the cutting blade 30A may be configured to be movable in the straight line direction, and the cutting blade 30A may be cut. The tape TP may be cut by moving the tape TP in a linear direction, or the tape TP may be cut by the stationary cutting blade 30A by moving a member that restrains the tape TP such as the tape guide 28B. It may be.

The staple driver 32 includes a plate-shaped plate attached to the main handle 20 so as to face the vicinity of the front end of the staple accommodating portion 23 of the staple magazine unit 22. The staple driver 32 is formed so that only one staple ST can be ejected, for example, having a thickness substantially equal to the width of the staple ST or a thickness smaller than the width of the staple ST.

When the clincher arm 50, which will be described later, rotates in a closing direction with respect to the main handle 20, the staple magazine unit 22 rotates in a direction approaching the main handle 20 by being pressed by the clincher arm 50. Therefore, the upper end of the staple driver 32 attached to the main handle 20 relatively enters the space inside the staple accommodating portion 23, and launches the leading staple ST in the staple accommodating portion 23 upward. The configuration of the staple driver 32 will be described in detail later.

The stamped staple ST is clinched by the clincher 54 after penetrating the tape TP. The bent leg portion of the staple ST can grip the two overlapping tapes TP with the crown portion 100 of the staple ST.

The staple magazine unit 22 is a member formed in an elongated linear shape. The rear end portion of the staple magazine unit 22 is rotatably attached to the rear end portion of the main handle 20 about a rotation axis. However, since the rotation angle is small, it may be expressed that the staple magazine unit 22 is swingably attached to the main handle 20.

The staple magazine unit 22 includes a staple accommodating portion 23 for accommodating the staple ST and a pusher unit 24. The staple accommodating portion 23 is arranged along the longitudinal direction X of the main handle 20, and is formed from the bottom surface elongated along the longitudinal direction X of the main handle 20 and from the bottom surface in order to accommodate the staple ST inside. It has two side wall surfaces that stand upright and face each other, and a front wall surface on which the side surface of the staple ST at the tip is pressed.

A plurality of staple STs can be accommodated in the staple accommodating portion 23. Adjacent staples ST can be, for example, glued together to form a row of staples as a whole.

The pusher unit 24 is, for example, a member that is removably attached to the staple accommodating portion 23 in order to press the staple ST accommodated in the staple accommodating portion 23 forward. The pusher unit 24 includes a compression spring for pressing the staple ST at the rear end forward among the plurality of staple STs, and a cover covering the upper part of the staple accommodating portion 23. By pulling out the pusher unit 24 from the staple accommodating portion 23 and opening the upper part of the staple accommodating portion 23, the staple ST can be set in the staple accommodating portion 23 from above.

The clincher arm 50 is rotatable with respect to the main handle 20 by a rotating shaft portion 11 provided near the rear end portion, and the angle with the main handle 20 is increased by the tension spring 12 (the clincher arm 50 is oriented). It is attached by being urged in the opening direction θ1) that opens to the side opposite to the closing direction θ2 described later. The clincher arm 50 includes an arm portion 52, a clincher 54, and a tape gripping unit 56 (an example of a “grasping portion”). The arm portion 52 has a shape that extends curvedly to the tip portion so that a C-shaped opening can be formed between the arm portion 52 and the main handle 20.

The clincher 54 is a member for bending and clinching the legs of the staple ST. The clincher 54 faces the tip of the staple driver 32 when the clincher arm 50 rotates in the closing direction θ2 that closes in the direction opposite to the opening direction θ1 described above, which is the direction in which the angle with the main handle 20 becomes smaller. Is provided at the tip of the clincher arm 50.

With such a configuration, the legs of the staple ST launched by the staple driver 32 are clinched by the clincher 54 and bent inward. A configuration provided on the clincher arm 50 and including the clincher 54 for executing the binding process may be referred to as a “binding portion”. The configuration of the clincher 54 will be described in detail later.

The tape gripping unit 56 is a mechanism for gripping the end portion of the tape TP pulled out from the tape guide 28B at the tip of the main handle 20. The tape gripping unit 56 is provided at the tip of the arm portion 52 of the clincher arm 50. The tape gripping unit 56 includes a lock plate 58, a tape catch 60, and a tape plate 62.

The lock plate 58 is configured to be rotatable around a shaft portion 58A provided on one end side, and the other end side is urged toward the tape catch 60 side by a coil spring 59. The lock plate 58 can lock the tape catch 60 by engaging with the tape catch 60 by the urging of the coil spring 59, and can fix the tape catch 60 at a position separated from the tape plate 62.

The tape catch 60 is rotatably provided with the shaft portion 60A as a fulcrum, and is urged toward the tape plate 62 side by a torsion coil spring 61. The tape catch 60 is configured such that when the lock by the lock plate 58 is released when the tape is pulled out, the tapered tip portion 60B moves toward the tape plate 62 side due to the urging of the torsion coil spring 61. ..

The tape plate 62 is arranged so as to face the tape catch 60, and its tip portion extends from the lock plate 58 toward the tape cutting portion 30. The tape plate 62 sandwiches the tape TP between the extended portion and the tip portion 60B of the tape catch 60. When the user weakens the force for gripping the operation handle 70 while the tape TP is being gripped, the tension spring 12 rotates the clincher arm 50 in the opening direction, so that the tape TP is moved upward via the tape guide 28B. It will be possible to withdraw.

The operation handle 70 is a portion to be gripped by the user, and a shaft portion 70A substantially in the middle thereof is rotatably attached to the clincher arm 50, and a front end portion thereof is attached to the main handle 20. With such a configuration, the operation handle 70 is opened and closed by the principle of leverage, in which the part gripped by the user is the force point, the rotation axis with the clincher arm 50 is the fulcrum, and the front end portion attached to the main handle 20 is the action point. As a result, the clincher arm 50 is configured to be able to open and close relative to the main handle 20.

[Operation of binding machine 10]
Subsequently, the operation of the binding machine 10 will be described with reference to FIGS. 4 to 8. The clincher arm 50 is constantly urged by the tension spring 12, and is in an open state with respect to the main handle 20 in the standby state shown in FIGS. 1 and 2. When the user grasps the operation handle 70 and the main handle 20 from this state, the clincher arm 50 rotates in the closing direction with respect to the main handle 20, as shown in FIG.

Then, when the clincher arm 50 rotates in a closing direction with respect to the main handle 20 to a predetermined position, the tape gripping unit 56 of the clincher arm 50 grips the tape TP in order to pull out the tape TP (see FIG. 4). The gripping operation is performed.

After that, when the grip of the main handle 20 is weakened and the clincher arm 50 is rotated in the opening direction with respect to the main handle 20, as shown in FIG. 4, the tape gripping unit of the clincher arm 50 is gripped with the tape TP. The tape guides 28B of the 56 and the main handle 20 are separated from each other, and the tape TP is stretched between the clincher arm 50 and the main handle 20.

As shown in FIG. 5, when the bound object S such as a seedling or a branch is inserted from the outside of the tape TP stretched in this state and the clincher arm 50 is rotated in the closing direction again, as shown in FIG. A tape loop of the tape TP that binds the object to be bound S is formed. By being pressed by the clincher arm 50, the staple magazine unit 22 rotates in the closing direction, so that the staple ST is driven by the staple driver 32.

As a result, as shown in FIGS. 7 and 8, both ends of the tape loop that binds the objects to be bound S are stapled together. Further, the tape TP is cut by the cutting blade 30A, and the binding operation is executed. In this way, the gripping operation is executed in the first gripping operation, and the binding operation is executed in the second gripping operation. Then, by alternately executing the gripping operation and the binding operation, the bound object S can be bound.

Hereinafter, the characteristic structure of the binding machine 10 will be described in detail.
[Staple driver]
FIG. 9 is an enlarged cross-sectional view showing the staple driver 32 in the state where the staple ST has been launched as shown in FIG. 6, and FIG. 10 is a state in which the staple ST has been launched as shown in FIG. It is a cross-sectional view which shows the staple driver 32 in an enlarged view. As shown in FIGS. 9 and 10, the bottom wall 200 of the main handle 20 has a lower surface 200B facing the tape holder 28A of the tape transport unit 28 and an upper surface 200A facing the staple magazine unit 22. ..

A staple driver 32 is attached to the upper surface 200A. In the present embodiment, as shown in FIGS. 9 and 10, the staple driver 32 has a launching portion 33 for launching the leading staple ST toward the clincher 54 and an attachment for attaching the launching portion 33 to the main handle 20. It has a portion 34 and a washer member (backup washer) 35 provided between the bottom wall 200 and the embossed portion 33. The washer member 35 is a metal part that has been heat-treated to improve wear resistance, and is less likely to wear than the bottom wall 200. In order to reduce the coefficient of friction, silicon grease or the like may be applied to the surface of the washer member 35.

The tip (upper end) 33D of the launching portion 33 is pressed against the clincher guide 25 forming the front wall surface of the staple accommodating portion 23 by the urging force of the torsion coil spring 36. As described above, the staple ST housed in the staple accommodating portion 23 is pressed against the clincher guide 25 by the urging force of the pusher unit 24. Since the positions of the leading staple ST and the tip 33D of the staple driver 32 are both regulated by the clincher guide 25 in the longitudinal direction X of the main handle 20, the tip of the launching portion 33 is placed on the crown portion of the leading staple ST. 33Ds face each other.

FIG. 11 is a perspective view of the staple driver 32 shown in FIG. The embossed portion 33 is formed in a substantially rectangular flat plate shape, and extends in a direction away from the bottom wall 200 of the main handle 20. The launching portion 33 has a tip end 33D, a base end 33P, and side edges 33L and 33R forming the four sides of the launching portion 33.

As described above, the tip 33D of the launching portion 33 faces the staple ST. The base end (lower end) 33P on the opposite side of the tip 33D or a portion in the vicinity thereof is in contact with the bottom wall 200 or the washer member 35 attached to the bottom wall 200. In other words, the launching portion 33 extends so that the base end 33P at one end abuts on the main handle 20 and the like, and the tip 33D at the other end faces the staple ST. The base end 33P and the portion in the vicinity thereof form an example of "the end portion arranged on the main handle 20 side of the launching portion 33".

The mounting portions 34 are provided on the side edges 33L and 33R of the launching portion 33, respectively, and extend toward the tip portion 201 of the main handle 20. In the illustrated example, the mounting portion 34 is provided near the base end 33P of the launching portion 33. The mounting portion 34 is provided with an engaging portion 341 that engages with the torsion coil spring 36 that is an urging means. The engaging portion 341 is provided on the upper edge of the mounting portion 34, and projects outward in the axial direction Y of the rotating shaft portion 11 of the binding machine 10.

The torsion coil spring 36 (an example of the “urging means”) is supported by the shaft portion 37 of the main handle 20 in a stored state. The torsion coil spring 36 urges the engaging portion 341 toward the tip 201 of the main handle 20, and attaches the engaging portion 341 toward the lower surface 200B from the upper surface 200A of the bottom wall 200 of the main handle 20. Momentum.

In the following description, in the longitudinal direction (front-back direction) X of the main handle 20, the direction (forward) from the rotation shaft portion 11 of the main handle 20 toward the tip portion 201 may be referred to as the first direction X1. Further, in the height direction (vertical direction) Z orthogonal to both the longitudinal direction X of the main handle 20 and the axial direction Y of the rotating shaft portion 11, the direction (downward) from the upper surface 200A to the lower surface 200B of the bottom wall 200 is the first. It is sometimes called the direction Z2 of 2. Seen from the staple driver 32 attached to the upper side of the main handle 20, the second orientation Z2 is the orientation in which the staple driver 32 approaches the main handle 20.

The end portion (base end portion) 332 including the base end 33P of the launching portion 33 and a portion in the vicinity thereof is arranged on the main handle 20 side. In a state where the clincher arm 50 is rotated in the closing direction θ2 (see, for example, FIG. 8), the end portion 332 is located at the first position P1. In a state where the clincher arm 50 is rotated in the opening direction θ1 (see, for example, FIG. 2), the end portion 332 is located at the second position P2 closer to the tip of the main handle 20 than the first position P1. .. That is, the staple driver 32 slides back and forth along the longitudinal direction X of the main handle 20 and is configured to be slightly displaceable.

According to the binding machine 10 of the first embodiment of the present invention configured as described above, as shown in FIG. 11, the tip 33D on which the reaction force from the staple ST acts on the launching portion 33 for launching the staple ST. It can be formed in a flat plate shape extending straight over the entire length from the main handle 20 to the base end 33P supported by the main handle 20.

The conventional staple driver is composed of a leaf spring whose base end side is bent into an L shape, and the bent portion is supported by the bottom wall 200 of the main handle 20. Since the reaction force from the staple ST was received through the bent portion, cracks due to the fatigue phenomenon may occur in the bent portion that is repeatedly deformed. On the other hand, in the first embodiment of the present invention, since the embossed portion 33 has a straight flat plate shape, the reaction force from the staple ST can be received without passing through the bent portion. The staple driver 32 is not easily damaged even if the binding machine 10 is used repeatedly.

The tip 33D of the launching portion 33 needs to be displaced back and forth following the movement of the staple accommodating portion 23. The conventional staple driver is formed of a leaf spring that deforms the staple driver itself. On the other hand, in the first embodiment, the end portion 332 of the staple driver 32 is configured to be slidable on the bottom wall 200 of the main handle 20 and the washer member 35 fixed to the bottom wall 200.

Therefore, the tip 33D of the launching portion 33 can be made to follow the movement of the staple accommodating portion 23 without deforming the staple driver 32 itself. The staple driver 32 is not easily damaged even if the binding machine 10 is used repeatedly. As for the material of the staple driver 32, repeated durability against bending is not always required, so that an inexpensive material can be selected.

The staple driver 32 is urged in the first and second directions X1 and Z2 by an urging means such as a torsion coil spring, and is positioned so that the tip 33D does not separate from the front wall surface of the staple accommodating portion 23. .. The urging means is configured separately from the staple driver 32 and can be replaced separately.

[Second Embodiment]
In the second embodiment, the description of the matters common to the first embodiment will be omitted, and only the differences will be described. FIG. 12 is a perspective view showing the staple driver 32 according to the second embodiment of the present invention. In the second embodiment, the urging means for urging the staple driver 32 in the first direction X1 and the second direction Z2 is different from that in the first embodiment.

In the second embodiment, the staple driver 32 is urged not by the torsion coil spring 36 but by magnets 38 and 39 (an example of "a urging means"). The staple driver 32 is formed of a ferromagnet that is attracted to a magnet. The magnet (first magnet) 38 that urges the staple driver 32 in the first direction X1 is arranged at a position advanced from the launching portion 33 in the first direction X1. In the illustrated example, it is fixed to the peripheral surface of the shaft portion 37 facing the launch portion 33 from the front.

Similarly, the magnet (second magnet) 39 that urges the staple driver 32 in the second direction Z2 is arranged at a position advanced from the launching portion 33 in the second direction Z2. In the illustrated example, the magnet 39 is embedded in the washer member 35 facing the staple driver 32 from below.

According to the second embodiment, similarly to the first embodiment, the staple driver 32 displaceable between the first position P1 (see FIG. 8) and the second position P2 (see FIG. 2) can be configured. it can. Since the number of elastically deformed members is reduced as compared with the first embodiment, the life of the binding machine 10 can be extended.

[Third Embodiment]
FIG. 13 is a perspective view showing the staple driver 32 according to the third embodiment of the present invention. In the third embodiment, the washer member 35 is restricted from the launching portion 33 being separated from the washer member 35, that is, the launching portion 35 is restricted from moving in the direction away from the main handle 20 (the clincher arm 50 is used). It differs from the first embodiment in that it includes a regulation unit 35S (which regulates the movement of the staple driver 32 in the directions of rotation θ1 and θ2). In the present embodiment, the regulating portion 35S is configured as a penetrating portion 35S penetrating the front surface 35A and the back surface 35B of the washer member 35, and the regulating portion 35S is formed on the base end 33P side of the launching portion 33. The structures (332N, 332W, 35S) are fitted. As a result, it is possible to regulate the launching portion 33 from being separated from the washer member 35.

However, without this regulation portion 35S, staple clogging should occur, and if the clincher arm 50 rotates in the opening direction θ1 that opens with respect to the main handle 20 (see FIG. 7 of the first embodiment), the staple ST is clogged together. The launching portion 33 may be lifted (away from the washer member 35). In this case, the staple magazine unit 23 is deformed due to a load applied in the process of returning the staple magazine unit 23 to the original position (direction θ1) from the state in which the staple ST has been launched (see FIG. 10 of the first embodiment). There is a risk of doing so.

On the other hand, by providing the regulating portion 35S and fitting the regulating structure (332N, 332W, 35S) therein, the launching portion 33 is separated (lifted) from the washer member 35 even if staple clogging occurs. ) Is regulated, so the above deformation can be prevented. In the illustrated example, the regulation structure (332N, 332W, 35S) is composed of a narrow portion 332N and a wide portion 332W provided on the staple driver 32.

FIG. 14 is a plan view showing the washer member 35 shown in FIG. As shown in FIG. 14, the washer member 35 is formed with a penetrating portion (regulating portion) 35S as a slit through which the narrow portion 332N is inserted. The penetrating portion (regulating portion) 35S as a slit penetrates the front surface 35A and the back surface 35B of the washer member 35 and extends along the first direction X1 toward the tip portion 201 (shown in FIG. 2) of the main handle 20. doing. The washer member 35 is fixed to the bottom wall 200 of the main handle 20 by a fastening screw (see FIG. 9 of the first embodiment).

FIG. 15 is a front view showing the launching portion 33 shown in FIG. As shown in FIG. 15, the narrow portion 332N and the wide portion 332W are provided at the base end portion 332 of the launching portion 33. In the width direction Y (shown in FIG. 1) of the main handle 20, the narrow portion 332N is formed to be narrower than the slit 35S. The wide portion 332W is provided at the tip (lower end) of the narrow portion 332N, and is formed wider than the narrow portion 332N and the slit 35S.

As shown in FIG. 13, in a state where the narrow portion 332N is inserted through the slit 35S, both ends of the wide portion 332W face the washer member 35 from the back surface 35B side of the washer member 35. When the staples are clogged and the launching portion 33 is pulled, the wide portion 332W comes into contact with the back surface 35B of the washer member 35, and the movement of the launching portion 33 is restricted.

[Fourth Embodiment]
FIG. 16 is a perspective view showing a staple driver 32 according to a fourth embodiment of the present invention. In the fourth embodiment, the shapes of the regulation unit and the regulation structure are different from those in the third embodiment. In the illustrated example, a slit 33S, which is an example of an opening, is formed in the embossed portion 33, and a tip portion (regulating portion) 352 of the washer member 35 is inserted through the slit 33S. In this way, the tip portion 352 of the washer member 35 inserts the slit 33S of the launching portion 33 to regulate the movement of the launching portion 33. Instead of the slit 33S, a bottomed recess 33S may be formed in the embossed portion 33 so that the tip portion 352 of the washer member fits in the recess 33S. According to the fourth embodiment, as in the third embodiment, the movement of the launching portion 33 can be restricted to prevent the launching portion 33 from being deformed.

[Fifth Embodiment]
FIG. 17 is a cross-sectional view showing a staple driver 32 according to a fifth embodiment of the present invention. In the fifth embodiment, the shapes of the regulation unit and the regulation structure are different from those in the third and fourth embodiments. In the fifth embodiment, a recess (regulatory portion) 35SS is formed as a bent groove (for example, a groove having an L-shaped cross section) on the surface 35A of the washer member 35, and the base end portion of the launch portion 33 is formed in the recess 35SS. The regulation structure 332X provided in the above is configured to be fitted.

The regulation structure 332X is formed in a shape that fits into the recess 35SS. Specifically, the regulation structure 332X is formed at the base end 33P of the launching portion 33 and the base end portion including the vicinity thereof, and bends from the base end portion of the launching portion 33 along the extending direction of the washer member 35. It extends like this. That is, the base end portion of the embossed portion 33 is formed in an L shape. By fitting such a regulation structure 332X into the recess 35SS, the movement of the launching portion 33 is restricted. According to the fifth embodiment, deformation of the launching portion 33 can be prevented in advance as in the third and fourth embodiments.

The embodiments described above are for facilitating the understanding of the present invention, and are not for limiting and interpreting the present invention. Each element included in the embodiment and its arrangement, material, condition, shape, size, and the like are not limited to those exemplified, and can be changed as appropriate. In addition, the configurations shown in different embodiments can be partially replaced or combined. For example, the staple ST is used as a means for binding both ends of the tape loop, but the present invention is not limited to this, and the tape loop may be bound by other means.

10 ... Bundling machine, 11 ... Rotating shaft, 12 ... Tension spring, 20 ... Main handle, 22 ... Staple magazine unit, 23 ... Staple housing, 24 ... Pusher unit, 25 ... Clincher guide, 26 ... Tape magazine unit, 28 ... Tape transport unit, 28A ... Tape holder, 28B ... Tape guide, 30 ... Tape cutting part, 30A ... Cutting blade, 30B ... Lock mechanism, 32 ... Staple driver, 33 ... Launching part, 33D ... Tip, 33P ... Base end , 33L, 33R ... side edge, 33S ... slit or recess, 34 ... mounting part, 35 ... washer member, 35A ... front surface, 35B ... back surface, 35S ... slit, 35SS ... recess, 36 ... torsion coil spring (of urging means) Example), 37 ... Shaft, 38, 39 ... Magnet (another example of urging means), 50 ... Clincher arm, 52 ... Arm, 54 ... Clincher, 55 ... Groove, 56 ... Tape gripping unit, 58 ... Lock Plate, 58A ... Shaft, 59 ... Coil spring, 60 ... Tape catch, 60A ... Shaft, 60B ... End, 61 ... Torsion coil spring, 62 ... Tape plate, 70 ... Operation handle, 70A ... Shaft, 200 ... Bottom wall, 200A ... top surface, 200B ... bottom surface, 201 ... tip part, 332 ... end part, 332N ... narrow part, 332W ... wide part, 332X ... regulated structure, 352 ... tip part, P1 ... first position, P2 ... 2nd position, S ... Bound, ST ... Staple, TP ... Tape, TR ... Tape reel, X ... Longitudinal direction, X1 ... 1st direction, Y ... Axial direction, Z ... Height direction, Z2 ... 2nd Direction, Z3 ... third direction, θ1 ... opening direction, θ2 ... closing direction.

Claims (12)

The main handle that houses the staples and
A staple driver that is supported by the main handle and can launch the staples,
A clincher arm that is rotatably attached to the main handle and has a clincher that clinches the staples launched by the staple driver.
The staple driver
A launching portion that extends away from the main handle and launches the staple toward the clincher.
It has a mounting portion for mounting the launching portion on the main handle, and has a mounting portion.
The mounting portion is configured to extend in the longitudinal direction of the main handle from the side edge of the launching portion.
Cable ties. The staple driver is displaceably mounted with respect to the main handle.
The binding machine according to claim 1. The clincher arm is configured to be rotatable between a closing direction in which the angle with the main handle is small and an opening direction in which the clincher arm opens to the side opposite to the closing direction, and the clincher arm is rotated in the closing direction. When the staples are made, the staple driver is provided so as to be able to launch the staples.
The staple driver
The end portion of the launching portion arranged on the main handle side is located at the first position in a state where the clincher arm is rotated in the closing direction.
The end of the launching portion arranged on the main handle side is a second position closer to the tip of the main handle than the first position in a state where the clincher arm is rotated in the opening direction. Displaceably attached to the main handle so as to be located at,
The binding machine according to claim 1 or 2. The main handle is disposed between the staple driver and has a washer member having a surface on which the staple driver can slide.
The binding machine according to any one of claims 1 to 3. The washer member has a regulating portion that regulates the staple driver from moving away from the main handle.
The binding machine according to claim 4. The regulating portion is a recess into which the staple driver is fitted.
The binding machine according to claim 5. The recess is formed on the surface.
The binding machine according to claim 6. The regulating portion has a penetrating portion that penetrates the front surface and the back surface opposite to the front surface.
The embossed portion penetrates the penetrating portion.
The binding machine according to claim 5. The embossed portion has a narrow portion penetrating the penetrating portion and a wide portion provided at the tip of the narrow portion and formed wider than the narrow portion.
At least a part of the wide portion faces the back surface.
The binding machine according to claim 8. The embossed portion has an opening into which the washer member can be fitted at a position facing the washer member.
The restricting portion regulates that the staple driver moves away from the main handle by fitting the washer member into the opening.
The binding machine according to claim 5. The embossed portion has a recess in which the washer member can be fitted at a position facing the washer member.
The restricting portion regulates that the staple driver moves away from the main handle by fitting the washer member into the recess.
The binding machine according to claim 5. The main handle
The staple driver,
While urging in the first direction toward the tip of the main handle,
It has an urging means that urges in a second direction approaching the main handle.
The binding machine according to any one of claims 1 to 11.