TW202110708A - Binding machine - Google Patents

Abstract

A binding machine includes: a main handle configured to accommodate a staple; a staple driver supported by the main handle and configured to drive the staple; and a clincher arm rotatably attached to the main handle and including a clincher, the clincher being configured to clinch the staple driven by the staple driver. The staple driver includes: a driving portion that extends in a direction away from the main handle and is configured to drive the staple toward the clincher, and an attachment portion with which the driving portion is attached to the main handle, and the attachment portion extends in a longitudinal direction of the main handle from a side edge of the driving portion.

Description

Bundling machine

The present invention relates to a binding machine.

For the bundling operation when cultivating crops, the bundling machine for gardening is used. For example, in the cultivation of crops such as courgettes, grapes, tomatoes, pears, and plums, horticultural bundling machines are used in order to bind the vines and stems of plants to pillars or nets. The binding machine includes a staple driver for knocking out the staples one by one.

Japanese Patent Application Laid-Open No. 2017-222403 describes a gardening binding machine that can suppress the dimensional change of the ejection port of the staple cartridge. In Fig. 4 of Japanese Patent Application Laid-Open No. 2017-222403, a plate-shaped driver 78 for knocking out staples is shown. The staple driver 78 includes an L-shaped mechanical connection part (a part installed in the binding machine) and a knockout part. The mechanical connection part is supported by a belt holder 44 laid along the longitudinal direction of the strapping machine body 40. The knock-out part is bent from the mechanical connection part and extends to the staple cartridge part 60.

However, in the case of a bundling machine that uses a bundling band for bundling, the load associated with the operation of penetrating the staple bundling band to staple the bundling band is extremely small. Therefore, the force exerted on the staple driver by the operator by gripping the operating handle from the fastener member becomes the load applied to the bent portion of the staple driver. Therefore, the bent part of the staple driver may be damaged.

An embodiment of the present invention provides a binding machine including a staple driver that is less likely to be damaged and has high durability even if it is repeatedly used.

One aspect of the binding machine of the present invention includes: a main grip that contains staples; a staple driver supported by the main grip to knock out the staples; and a fastener arm, which can rotate The ground is installed on the main grip. The buckle arm is a buckle piece with staples knocked out by the staple driver. The staple driver has: a knock-out part, which extends in a direction away from the main grip, to knock out the staples toward the buckle; and an installation part, which installs the knock-out part to the main grip. The structure of the mounting part extends from the side edge of the knock-out part to the longitudinal direction of the main grip.

Hereinafter, the embodiments of the present invention will be described using the drawings. The following embodiment is an example for explaining the present invention, and it does not limit the present invention to only the embodiment. Fig. 1 is a right side view of the gardening strapping machine 10 of this embodiment. FIG. 2 is a cross-sectional view of the strapping machine 10 shown in FIG. 1.

Furthermore, in this embodiment, for convenience of description, the tape holder 28A may be extended from the cassette unit 26 in which the tape body TP for binding is accommodated, and may be extended to the bundle that is provided on the tape body TP and pulled out. The side of the tape guide 28B at the tip of the machine 10 (on the right side of the paper in Fig. 1) is called "front", and the opposite side (on the left of the paper in Fig. 1) is called "rear".

In addition, sometimes the belt body TP is pulled out with the guide 28B to face the side of the belt holding unit 56 in the standby state (above the paper surface in FIG. 1), which is called "upper", and the opposite side (The bottom of the paper in Figure 1) is called "below". Hereinafter, the main structure of the binding machine 10 is outlined. After that, the characteristic structure of the strapping machine 10 will be described in detail.

The tying machine 10 for gardening of the present embodiment can be used, for example, for attracting and tying agricultural crops (an example of "to be tied S"). The strapping machine 10 includes: a main grip 20; a staple cartridge unit 22, which is rotatably installed on the main grip 20; a fastener arm 50, which is rotatably installed on the main grip 20; and an operating grip The handle 70 is rotatably mounted to the fastener arm 50.

The main grip 20 is formed as an elongated linear member. The main grip 20 includes a tape conveying unit 28, a tape cutting unit 30, and a staple driver 32. In addition, a cassette unit 26 is attached to the rear end of the main grip 20. The main grip 20 and the cassette unit 26 may also be formed integrally.

The tape cassette unit 26 is used to accommodate the tape TP wound on the reel (hereinafter, sometimes the tape TP after being wound is called the tape reel TR ("the tape for binding after being wound) "An example).) Organization. As shown in FIG. 1 and the like, the cassette unit 26 is provided at the rear end of the main grip 20.

The belt conveying unit 28 includes a belt holder 28A and a belt guide 28B. The belt holder 28A is used for the self-carrying cassette unit 26 to carry the belt body TP to the path of the belt guide 28B, which is laid along the longitudinal direction X of the main grip 20. The belt holder 28A includes: a bottom part, a surface facing one side of the belt body TP; and a cover part, a surface facing the other side of the belt body TP (hereinafter, sometimes the surface of the other side of the belt body TP is called "The inner surface".). The structure of the bottom and the cover can be opened and closed by using, for example, one side along the longitudinal direction X as a fulcrum.

The belt guide 28B (refer to FIGS. 2 to 8) is a member used to guide the tip of the belt body TP with the self-carrying holder 28A to the upper side to be pulled out. The tape guide 28B is rotatably provided at the front end of the tape holder 28A. The belt guide 28B has a surface facing the belt body TP, an inner surface, and at least a part of the wall surface on both sides, so that the belt body TP is not easy to fall off after being penetrated.

The tape cutting part 30 includes: a cutting knife 30A for cutting the tape body TP; and a locking mechanism 30B for locking and unlocking the cutting knife 30A. When replacing the cutting knife 30A, it is tied to the locking mechanism 30B, and the lock is released to remove the cutting knife 30A. The cutting knife 30A is provided so as to be rotatable integrally with the tape guide 28B, and is pushed by an elastic member (not shown) so that it is pushed backward in the standby state and during the gripping operation. When the binding action is performed, the tape guide 28B is pressed by the tip portion 60B of the tape grabber 60, and the tape guide 28B and the cutting knife 30A rotate against the pressing force of an elastic member not shown. Move so that the upper part of the cutting edge of the cutting blade 30A faces the belt body TP.

In addition, various mechanisms can be used for cutting the tape body TP. For example, the belt body TP can be rotated in conjunction with the belt guide 28B to cut the belt body TP; and the structure of the belt guide 28B and the cutting knife 30A can also be moved in the straight direction, so The cutting knife 30A moves in a straight direction to cut the tape body TP; it is also possible to use a member of the tape body TP such as a movement restriction tape guide 28B, and the tape body TP is cut by the stationary cutting knife 30A.

The staple driver 32 includes a plate-shaped plate body mounted on the main grip 20 so as to face the vicinity of the front end of the staple accommodating portion 23 of the staple cartridge unit 22. The staple driver 32 is formed so that, for example, the thickness is approximately the same as the width of the staple ST, or the thickness is smaller than the width of the staple ST, so that only one staple ST is knocked out.

When the fastener arm 50 described later rotates in the closing direction relative to the main grip 20, the staple cartridge unit 22 is rotated in the direction approaching the main grip 20 by being pressed down by the fastener arm 50 . Therefore, the upper end of the staple driver 32 installed in the main grip 20 relatively enters the space in the staple accommodating portion 23, so that the leading staple ST in the staple accommodating portion 23 moves toward Knock out from above. The structure of the staple driver 32 is described in detail below.

The staple ST after being knocked out is fastened through the belt body TP, and is fastened by the fastening member 54. The bent leg of the staple ST is tied to the crown 100 of the staple ST, and can hold the two overlapped straps TP.

The staple cartridge unit 22 is formed as an elongated linear member. The rear end portion of the staple cartridge unit 22 is attached to the rear end portion of the main grip 20 so as to be rotatable with a rotation axis as the center. However, the rotation angle is small, so the staple cartridge unit 22 may appear to be swingably attached to the main grip 20.

The staple cartridge unit 22 includes: a staple accommodating part 23 for accommodating staples ST; and a push rod unit 24. The staple accommodating portion 23 is arranged along the longitudinal direction X of the main grip 20. In order to accommodate the staples ST inside, it includes: a bottom surface formed to be elongated along the longitudinal direction X of the main grip 20; two The side wall surfaces are erected from the bottom surface, facing each other; and the front wall surface is pressed against the side surface of the leading staple ST.

In the staple accommodating part 23, plural staples ST can be accommodated. Adjacent staples ST are connected to each other with an adhesive, for example, and can form a staple group that is all in a row.

The push rod unit 24 is a member that is detachably installed with respect to the staple accommodating portion 23 in order to press the staples ST accommodated in the staple accommodating portion 23 to the front. The push rod unit 24 includes: a compression spring for pressing the staples ST at the rear end among the plurality of staples ST to the front; and a cover covering the upper part of the staple accommodating part 23. Furthermore, the custom staple accommodating part 23 draws out the pusher unit 24 and opens the upper side of the staple accommodating part 23, whereby the staples ST can be set into the staple accommodating part 23 from above.

The fastener arm 50 is rotatably arranged with respect to the main grip 20 by means of the rotating shaft portion 11 located near the rear end, and is installed to be connected to the main grip 20 by means of a tension spring 12 The direction in which the angle becomes larger (the fastener arm 50 is opened in the opening direction θ1 opposite to the closing direction θ2 described later). The fastener arm 50 includes an arm 52, a fastener 54, and a belt holding unit 56 (an example of the “holding part”). The shape of the arm portion 52 is curved to extend to the tip portion, so that a C-shaped opening can be formed between the arm portion 52 and the main grip 20.

The fastener 54 is a member for bending the legs of the staple ST for fastening. The buckle member 54 is arranged at the tip of the buckle member arm 50, so that when the buckle member arm 50 is in a direction where the angle with the main grip 20 becomes smaller, that is, it closes toward the opposite side of the opening direction θ1. After rotating in the closing direction θ2, it faces the tip of the staple driver 32.

With this structure, the legs of the staple ST knocked out by the staple driver 32 are fastened by the fastening member 54 and bend inwardly. Sometimes the structure including the fastener 54 provided on the fastener arm 50 for performing the bundling process is referred to as the "bundling part". The structure of the fastener 54 is described in detail below.

The belt grip unit 56 is a mechanism for gripping the end of the belt body TP that is pulled out by the belt guide 28B at the tip of the autonomous grip 20. The belt holding unit 56 is provided at the tip of the arm 52 of the fastener arm 50. The belt holding unit 56 has a locking plate 58, a belt grabber 60, and a belt plate 62.

The structure of the locking plate 58 is such that the shaft portion 58A provided on one end side can be used as a fulcrum to rotate, while the other end side is pressed toward the belt grabber 60 side by the coil spring 59. The locking plate 58 is pressed by the coil spring 59 and locked to the belt grabber 60, whereby the belt grabber 60 is locked, and the belt grabber 60 can be fixed between the self-carrying plate 62 and the gap. position.

The belt grabber 60 is set to rotate with the shaft 60A as a fulcrum, and at the same time, it is pushed toward the belt plate body 62 by the torsion coil spring 61. The structure of the belt grabber 60 is that when the belt body is pulled out, when the lock made by the locking plate 58 is released, the torsion coil spring 61 is pressed to move the pointed end 60B To the side of the belt plate body 62.

The belt plate body 62 is arranged to face the belt grabber 60, and the tip portion of the belt plate body 62 is self-locking plate body 58 and extends toward the belt cutting portion 30. The belt plate body 62 clamps the belt body TP by the extended portion and the tip portion 60B of the belt grabber 60. In the state where the belt body TP is being held, when the user weakens the force of holding the operating handle 70, the buckle arm 50 is rotated in the opening direction by the tension spring 12, so through the belt guide 28B, the belt body TP can be pulled out to the top.

The operating handle 70 is a part held by the user. The approximately middle shaft portion 70A is rotatably mounted on the fastener arm 50, and its front end is mounted on the main grip 20. With this structure, by taking the part held by the user as the point of force, taking the rotation axis of the fastener arm 50 as the fulcrum, the lever installed at the front end of the main grip 20 as the point of action In principle, with the opening and closing action of the operating handle 70, the fastener arm 50 can relatively open and close with respect to the main handle 20.

[Operation of strapping machine 10] Next, the operation of the binding machine 10 will be described with reference to FIGS. 4 to 8. The fastener arm 50 is always pushed by the tension spring 12, and in the standby state shown in FIGS. 1 and 2, it becomes an open state relative to the main grip 20. From this state, the user grips the operating handle 70 and the main grip 20, whereby, as shown in FIG. 3, the fastener arm 50 is rotated in the closing direction relative to the main grip 20.

Moreover, when the buckle arm 50 is rotated to a predetermined position in the closing direction with respect to the main grip 20, in order to pull out the belt body TP (refer to FIG. 4), the belt grip of the buckle arm 50 is fastened The gripping action of the unit 56 gripping the belt body TP.

After that, when the main grip 20 is weakened, so that the buckle member arm 50 rotates in the opening direction relative to the main grip 20, as shown in FIG. 4, in the state after the belt body TP is held, the buckle The belt holding unit 56 of the arm 50 and the belt guide 28B of the main grip 20 are separated from each other, and the belt body TP is stretched between the buckle arm 50 and the main grip 20.

As shown in FIG. 5, in this state, when the sapling or branch to be bundled S is inserted from the outside of the stretched belt body TP, and the fastener arm 50 is rotated to the closing direction again, as shown in FIG. 6 As shown, the belt loop forming the belt body TP of the bundled object S is formed. By being pressed by the fastener arm 50, the staple cartridge unit 22 is rotated in the closing direction, so the staple ST is driven by the staple driver 32.

Thereby, as shown in FIG. 7 and FIG. 8, the both ends of the belt loop of the binding object S are bound by the staples ST. In addition, the tape body TP is cut by the cutting knife 30A, and the binding operation is performed. In this way, in the first squeezing action, the holding action is executed, and in the second squeezing action, the binding action is executed. In addition, by alternately performing this gripping action and bundling action, the object S to be bundled can be bundled.

Hereinafter, the characteristic structure of the strapping machine 10 will be described in detail. [Stapler Driver] Fig. 9 is an enlarged cross-sectional view of the staple driver 32 in the state after starting to knock out the staple ST shown in Fig. 6; Fig. 10 is an enlarged showing after the end of knocking out the staple ST shown in Fig. 8 Sectional view of the staple driver 32 in the state. As shown in FIGS. 9 and 10, the bottom wall 200 of the main grip 20 has: a lower surface 200B facing the tape holder 28A of the tape conveying unit 28; and an upper surface 200A facing the staple cartridge unit 22.

A staple driver 32 is installed on the upper surface 200A. In this embodiment, as shown in FIGS. 9 and 10, the staple driver 32 has: a knock-out portion 33 for knocking out the first staple ST to the buckle member 54; and a mounting portion 34 for installing the knockout The out portion 33 is on the main grip 20; and a washer member (support washer) 35 is provided between the bottom wall 200 and the knock out portion 33. The washer member 35 is a metal part that has been subjected to heat treatment to improve the wear resistance, and is less abraded than the bottom wall 200. In order to reduce the coefficient of friction, the surface of the gasket member 35 may be coated with silicone grease or the like.

The tip (upper end) 33D of the knockout portion 33 is pressed against the fastener guide 25 constituting the front wall surface of the staple receiving 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 fastener guide 25 by the pushing force of the push rod unit 24. The leading staple ST and the tip 33D of the staple driver 32 are both restricted to the position in the longitudinal direction X of the main grip 20 by the fastener guide 25. Therefore, the tip 33D of the knock-out portion 33 is Facing the crown of the first staple ST.

FIG. 11 is a perspective view of the staple driver 32 shown in FIG. 9. The knock-out portion 33 is formed into an approximately rectangular flat plate shape and extends in a direction away from the bottom wall 200 of the autonomous grip 20. The knockout portion 33 has a tip 33D, a base end 33P, and side edges 33L, 33R that constitute the four sides of the knockout portion 33.

As described above, the tip 33D of the knockout portion 33 faces the staple ST. The base end (lower end) 33P on the opposite side of the tip 33D or the portion beside it is abutted against the bottom wall 200 or the gasket member 35 attached to the bottom wall 200. In other words, the knock-out portion 33 is the base end 33P of the knock-out portion 33 as one end, abutting against the main grip 20, etc., and the tip 33D of the knock-out portion 33 as the other end extends so as to face the staple ST. The base end 33P and the part beside it are an example of "the end part arranged on the main grip side of the knockout part".

The mounting portions 34 are respectively provided on the side edges 33L and 33R of the knockout portion 33 and extend toward the tip portion 201 of the main grip 20. In the example shown in the figure, the mounting portion 34 is provided close to the base end 33P of the knockout portion 33. The mounting portion 34 is provided with an engaging portion 341 that engages with the torsion coil spring 36 as a pressing mechanism. The engaging portion 341 is provided on the upper edge of the mounting portion 34 and protrudes 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 "pushing mechanism") is supported by the shaft 37 of the main grip 20 in a state of being charged. The torsion coil spring 36 pushes the engaging portion 341 toward the tip portion 201 of the main grip 20, and at the same time pushing the engaging portion 341, the upper surface 200A of the bottom wall 200 of the autonomous grip 20 goes from the upper surface 200A to the lower surface 200B. direction.

In the following description, in the longitudinal direction (front-rear direction) X of the main grip 20, the direction from the rotating shaft portion 11 of the autonomous grip 20 to the tip portion 201 (front direction) is sometimes referred to as the first direction X1. Also, in the height direction (vertical direction) Z perpendicular to the longitudinal direction X of the main grip 20 and the axial direction Y of the rotating shaft portion 11, the direction from the upper surface 200A of the bottom wall 200 to the lower surface 200B (lower Direction), called the second direction Z2. Viewed from the staple driver 32 installed on the upper side of the main grip 20, the second direction Z2 is the direction in which the staple driver 32 approaches the main grip 20.

The end portion (base end portion) 332 of the knockout portion 33 including the base end 33P and the part beside it is arranged on the main grip 20 side. In the state after rotating to the closing direction θ2 of the closing fastener arm 50 (for example, refer to FIG. 8), the end 332 is located at the first position P1. In the state after rotating in the opening direction θ1 of the opening fastener arm 50 (for example, refer to FIG. 2), the end 332 is located at the second position P2 closer to the tip of the main grip 20 than the first position P1. That is, the structure of the staple driver 32 is to slide back and forth along the longitudinal direction X of the main grip 20, and it is slightly movable.

When the binding machine 10 according to the first embodiment of the present invention constructed as described above is used, as shown in FIG. 11, for the knock-out portion 33 that knocks out the staple ST, the tip 33D of the reaction force from the staple ST is applied. , It stretches to the full length of the base end 33P supported by the main grip 20, and can be formed into a straightly extending flat plate shape.

The previous staple driver is composed of a plate spring whose base end is bent into an L shape, and the bent portion is supported by the bottom wall 200 of the main grip 20. Through the bending part, the reaction force from the staple ST is received. Therefore, sometimes the bending part that is repeatedly deformed may cause cracks caused by fatigue phenomenon. In contrast to this, in the first embodiment of the present invention, the knock-out portion 33 has a straight flat plate shape, so it can receive the reaction force from the staple ST without penetrating the bent portion. Even if the binding machine 10 is repeatedly used, the staple driver 32 is unlikely to be damaged.

It is preferable that the tip 33D of the knock-out portion 33 is displaced forward and backward in accordance with the movement of the staple receiving portion 23. The previous staple driver is formed by a plate spring deformed by the staple driver itself. In contrast, in the first embodiment, the end 332 of the staple driver 32 can slide on the bottom wall 200 of the main grip 20 or the washer member 35 fixed to the bottom wall 200.

Therefore, even if the staple driver 32 itself is not deformed, the tip 33D of the knock-out portion 33 can track the movement of the staple accommodating portion 23. Even if the binding machine 10 is repeatedly used, the staple driver 32 is unlikely to be damaged. Regarding the material of the staple driver 32, the repeated durability against bending becomes unnecessary, so it becomes possible to choose an inexpensive material.

The staple driver 32 is pressed in the first and second directions X1, Z2 by a pressing mechanism such as a torsion coil spring, and is positioned so that the tip 33D does not move away from the front wall surface of the staple receiving portion 23. The pressing mechanism and the staple driver 32 are composed of different individuals and can be replaced separately.

[Second Embodiment] In the second embodiment, descriptions of matters common to the first embodiment are omitted, and only the differences are explained. Fig. 12 is a perspective view showing a staple driver 32 according to the second embodiment of the present invention. The second embodiment is a pressing mechanism that presses the staple driver 32 in the first direction X1 and the second direction Z2, and is different from the first embodiment.

In the second embodiment, instead of the torsion coil spring 36, the staple driver 32 is pressed by the magnets 38 and 39 (an example of the "pressing mechanism"). The staple driver 32 is formed of a ferromagnetic body attracted by a magnet. The magnet (first magnet) 38 that pushes the staple driver 32 in the first direction X1 is arranged at a position further advanced in the first direction X1 than the knockout portion 33. In the example shown in the figure, the peripheral surface of the shaft portion 37 facing from the front is fixed to the knockout portion 33.

Similarly, the magnet (second magnet) 39 that pushes the staple driver 32 in the second direction Z2 is arranged at a position further advanced in the second direction Z2 than the knockout portion 33. In the example shown in the figure, a magnet 39 is embedded in the washer member 35 facing the staple driver 32 from below.

According to the second embodiment, similar to the first embodiment, a staple driver 32 that can be displaced between the first position P1 (refer to FIG. 8) and the second position P2 (refer to FIG. 2) can be configured. Compared with the first embodiment, the number of elastically deformed members is reduced, so the life of the binding machine 10 can be prolonged.

[Third Embodiment] Fig. 13 is a perspective view showing a staple driver 32 according to the third embodiment of the present invention. The third embodiment is to include the washer member 35 and restrict the knock-out portion 33 from being separated from the washer member 35, that is, restrict the movement of the knock-out portion 33 in the direction away from the main grip 20 (in the buckle In the direction θ1, θ2 in which the arm 50 rotates, the restriction portion 35S that restricts the movement of the staple driver 32 is different from the first embodiment. In this embodiment, the restricting portion 35S is constituted by a penetrating portion 35S penetrating through the surface 35A and the inner surface 35B of the gasket member 35, and the penetrating portion 35S is fitted with the base end 33P formed in the knockout portion 33. Side restriction structure (332N, 332W, 35S). Thereby, the clearance of the knockout portion 33 from the gasket member 35 can be restricted.

However, if there is no such restricting portion 35S, in case staple jam occurs, when the fastener arm 50 rotates in the opening direction θ1 relative to the main grip 20 (refer to FIG. 7 of the first embodiment) ), sometimes the jammed staple ST is picked up together with the knock-out portion 33 (cleared from the washer member 35). In this case, there is a state after the end of knocking out the staple ST (refer to FIG. 10 of the first embodiment), and the staple cartridge unit 23 returns to the original position (direction θ1) in the process, and the load is applied to the knocking The part 33 may be deformed.

On the other hand, by providing the restricting portion 35S, the restricting structure (332N, 332W, 35S) is fitted here, and even if the staple jam occurs, the knock-out portion 33 is restricted from being separated from the washer member 35 (it is lifted Situation), so it can prevent the above-mentioned deformation before it happens. In the example shown in the figure, the restricting structure (332N, 332W, 35S) is composed of a narrower portion 332N and a wider portion 332W provided in the staple driver 32.

FIG. 14 is a plan view showing the gasket member 35 shown in FIG. 13. As shown in FIG. 14, the gasket member 35 is formed with a penetration portion (restriction portion) 35S serving as a slit that penetrates the narrow portion 332N. The penetration portion (restriction portion) 35S serving as a slit penetrates the surface 35A and the inner surface 35B of the gasket member 35 and extends along the first direction X1 toward the tip portion 201 (shown in FIG. 2) of the main grip 20. The washer member 35 is fixed to the bottom wall 200 of the main grip 20 by a lock screw (refer to FIG. 9 of the first embodiment).

FIG. 15 is a front view of the knockout part 33 shown in FIG. 13. As shown in FIG. 15, the narrow part 332N and the wide part 332W are provided at the base end part 332 of the knockout part 33. In the width direction Y (shown in FIG. 1) of the main grip 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 to be wider than the narrow portion 332N and the slit 35S.

As shown in FIG. 13, in the state in which the narrow portion 332N penetrates through the slit 35S, both ends of the wide portion 332W are connected to the gasket member 35 from the inner surface 35B side of the gasket member 35. When staple jam occurs and the knock-out portion 33 is stretched, the wider portion 332W abuts the inner surface 35B of the washer member 35, and the movement of the knock-out portion 33 is restricted.

[Fourth Embodiment] Fig. 16 is a perspective view showing the staple driver 32 of the fourth embodiment of the present invention. The fourth embodiment is different from the third embodiment in the shape of the restricting portion and the restricting structure. In the example shown in the figure, a slit 33S as an example of an opening is formed in the knockout portion 33, and the slit 33S penetrates the tip portion (restriction portion) 352 of the gasket member 35. In this way, the tip portion 352 of the washer member 35 penetrates the slit 33S of the knock-out portion 33, thereby restricting the movement of the knock-out portion 33. Furthermore, instead of the slit 33S, a bottomed recessed portion may be formed in the knockout portion 33, and the tip portion 352 of the washer member may be fitted into the recessed portion. According to the fourth embodiment, as in the third embodiment, the movement of the knockout portion 33 can be restricted to prevent the knockout portion 33 from being deformed beforehand.

[Fifth Embodiment] Fig. 17 is a cross-sectional view showing a staple driver 32 according to a fifth embodiment of the present invention. The fifth embodiment is different from the third and fourth embodiments in the shape of the restricting portion and the restricting structure. In the fifth embodiment, on the surface 35A of the gasket member 35, a concave portion (restriction portion) 35SS that is a curved groove (for example, a groove with an L-shaped cross-section) is formed. The restriction structure 332X of the base end of the outlet portion 33.

The restriction structure 332X is formed into a shape that fits into the recess 35SS. Specifically, the restriction structure 332X is formed at the base end 33P including the knockout portion 33 and the base end beside it, and extends so that the base end portion of the knockout portion 33 is bent along the extending direction of the washer member 35 . That is, the base end of the knockout portion 33 is formed in an L-shape. This restriction structure 332X is fitted into the recess 35SS, thereby restricting the movement of the knockout portion 33. According to the fifth embodiment, similarly to the third and fourth embodiments, the knockout portion 33 can be prevented from being deformed beforehand.

The embodiments described above are for easy understanding of the present inventors, and they are not intended to limit the interpretation of the present inventors. The various elements included in the embodiment and their arrangement, materials, conditions, shapes, sizes, etc. are not limited to the exemplified ones, and can be changed as appropriate. In addition, the structures shown in the different embodiments can be partially replaced or combined. For example, the mechanism for binding the two ends of the belt body loop uses staples ST. However, the present invention is not limited to this, and other mechanisms may be used to bind the belt body loop.

The binding machine (10) of one aspect of the present invention includes: a main grip (20) containing staples (ST); a staple driver (32) supported by the main grip (20) to The staples (ST) can be knocked out; and the fastener arm (50) is rotatably installed on the main grip (20). The fastener arm (50) is a fastener (54) with staples (ST) knocked out by the staple driver (32). The staple driver (32) has: a knock-out part (33) that extends in the direction away from the main grip (20) to knock out the staples (ST) toward the buckle (54); and a mounting part ( 34), used to install the knockout part (33) on the main grip (20). The structure of the mounting portion (34) extends from the side edges (33L, 33R) of the knock-out portion (33) to the longitudinal direction (X) of the main grip (20).

In the above aspect, the staple driver (32) can also be displaceably installed on the main grip (20).

In the above aspect, the structure of the fastener arm (50) is tied to the closing direction (θ2) where the angle between the fastener arm (50) and the main grip (20) decreases, and the closing direction ( θ2) can be rotated between the opening direction (θ1) and the opposite direction of opening (θ1). The staple driver (32) can also be set to rotate the fastener arm (50) in the closing direction (θ2). Out of staples (ST). The staple driver (32) can also be arranged at the end (332) on the main grip (20) side of the knockout part (33), and rotate the fastener arm (50) to the closing direction (θ2) In the latter state, it is in the first position (P1). It can also be displaceably mounted on the main grip (20), so that the end (332) is tied to the first position (P1) when the rotating fastener arm (50) is in the opening direction (θ1). Also close to the second position (P2) of the tip (201) of the main grip (20).

In the above aspect, the main grip (20) may also have a washer member (35A) which is arranged between the staple driver (32) and has a sliding surface (35A) of the staple driver (32). 35).

In the above aspect, the washer member (35) may also have a restricting portion (35S) that restricts the staple driver (32) from moving in a direction away from the main grip (20).

In the above aspect, the restricting portion (35S) may be fitted with the recessed portion (35SS) of the staple driver (32).

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

In the above aspect, the restricting portion (35S) may have a penetration portion (35S) that penetrates the inner surface (35B) on the opposite side of the surface (35A) and the surface (35A). The knock-out part (33) may also penetrate through the through part (35S).

In the above aspect, the knock-out portion (33) may also have: a narrower portion (332N) that penetrates the through portion (35S); and a wider portion (332W) that is formed to be narrower than the narrower portion (332N) Also wide. At least a part of the wider part (332W) may also face the inner surface (35B).

In the above aspect, the knock-out portion (33) may have an opening (33S) into which the washer member (35) can fit in a position facing the washer member (35). The restricting portion (352) may be fitted with the washer member (35) in the opening (33S), thereby restricting the movement of the staple driver (32) in a direction away from the main grip (20).

In the above aspect, the knock-out portion (33) may have a recess (33S) into which the washer member (35) can fit in a position opposite to the washer member (35). The restricting portion (352) can also be fitted with the washer member (35) in the recessed portion (33S), thereby restricting the movement of the staple driver (32) in a direction away from the main grip (20).

In the above aspect, the main grip (20) may also have pressing members (36, 37). The pushing mechanism (36, 37) can also push the staple driver (32) toward the first direction (X1) of the tip (201) of the main grip (20), and at the same time push it toward the main grip (20) The second direction (Z2).

According to the present invention, it is possible to provide a binding machine including a staple driver that is not likely to be damaged even if it is repeatedly used and has a high durability.

10: Bundling machine 11: Rotating shaft 12: Extension spring 20: Main grip 22: staple cartridge unit 23: Staple Storage Department 24: Putter unit 25: Fastener guide 26: With cassette unit 28: With handling unit 28A: With retainer 28B: With introducer 30: With cutting part 30A: Cutting knife 30B: Locking mechanism 32: staple driver 33: knock out part 33D: Tip (upper end) 33L, 33R: side edge 33P: Base end (lower end) 33S: slit 34: Installation Department 35: Washer component 35A: Surface 35B: inner surface 35S: Restricted Department 35SS: Recessed part (restricted part) 36: Torsion coil spring 37: Shaft 38: Magnet (the first magnet) 39: Magnet 50: buckle arm 52: Arm 54: Fasteners 56: With grip unit 58: Locking plate body 58A: Shaft 59: Coil spring 60: With grabber 60B: Tip 61: Torsion coil spring 62: with board 70: Operation grip 100: Crown ST: staples 200: bottom wall 200A: upper surface 200B: lower surface 201: Tip 341: Card Fitting 332: End (base end) 332N: Narrow part 332W: wider part 332X: Restricted structure 352: Tip part (restriction part) TP: belt body

[Fig. 1] is a right side view showing the binding machine according to the first embodiment of the present invention. [Figure 2] is a cross-sectional view of the strapping machine in the standby state. [Figure 3] is a cross-sectional view of the strapping machine in the state of grasping the belt body. [Figure 4] is a cross-sectional view of the strapping machine in the state after the belt body is pulled out. [Figure 5] is a cross-sectional view of the strapping machine in the state after the object to be strapped has been inserted. [Figure 6] is a cross-sectional view of the binding machine in the state after starting to knock out the staples. [Figure 7] is a cross-sectional view of the binding machine in the state of knocking out the staples. [Figure 8] is a cross-sectional view of the binding machine in the state after finishing knocking out the staples. [Fig. 9] is an enlarged cross-sectional view showing the staple driver in the state after starting to knock out the staple shown in Fig. 6. [Fig. 10] is an enlarged cross-sectional view showing the staple driver in the state after finishing knocking out the staple shown in Fig. 8. [Figure 11] is a perspective view of the staple driver shown in Figure 9. [Fig. 12] is a perspective view showing the staple driver of the second embodiment of the present invention. [Fig. 13] is a perspective view showing the staple driver of the third embodiment of the present invention. [Fig. 14] is a plan view showing the gasket member shown in Fig. 13. [Fig. 15] is a front view showing the staple driver shown in Fig. 13. [Fig. 16] is a perspective view showing the staple driver of the fourth embodiment of the present invention. [Fig. 17] is a cross-sectional view showing the staple driver of the fifth embodiment of the present invention.

10: Bundling machine

11: Rotating shaft

12: Extension spring

20: Main grip

22: staple cartridge unit

26: With cassette unit

28: With handling unit

28A: With retainer

28B: With introducer

50: buckle arm

52: Arm

54: Fasteners

56: With grip unit

62: with board

70: Operation grip

TP: belt body

TR: with reel

Claims (13)

A binding machine includes: Main grip, containing staples; The staple driver is supported by the main grip so that the staple can be knocked out; and The buckle arm is rotatably installed on the main grip, and has the buckle of the staple after the buckle is knocked out by the staple driver, The staple driver has: The knock-out portion extends in a direction away from the main grip, and knocks out the staple to the buckle member; and Mounting part for mounting the knock-out part to the main grip, The structure of the mounting part extends from the side edge of the knock-out part to the longitudinal direction of the main grip. Such as the binding machine of claim 1, wherein the staple driver is movably mounted on the main grip. Such as the binding machine of claim 1, wherein the structure of the fastener arm is between the closing direction where the angle with the main grip becomes smaller, and the opening direction opening to the opposite direction of the closing direction, and can be rotated , The staple driver is set to knock out the staple after rotating the fastener arm to the closing direction, The staple driver is movably mounted on the main grip, so that The knock-out portion is arranged at the end of the main grip side, and is located in the first position after rotating the fastener arm to the closing direction, The knock-out part is arranged at the end of the main grip side, and is located closer to the tip part of the main grip than the first position in the state after rotating the fastener arm to the opening direction The second position. The binding machine according to any one of claims 1 to 3, wherein the main grip has a washer member arranged between the staple driver and a surface on which the staple driver can slide. Such as the binding machine of claim 4, wherein the washer member has a restricting portion that restricts the movement of the staple driver in a direction away from the main grip. Such as the binding machine of claim 5, wherein the restricting part is fitted into the concave part of the staple driver. Such as the strapping machine of claim 6, wherein the recess is formed on the surface. For the strapping machine of claim 5, the restricting portion has a through portion that penetrates the surface and the inner surface on the opposite side of the surface, The knock-out part penetrates the through part. Such as the strapping machine of claim 8, wherein the knock-out portion has: a narrower portion that penetrates the through portion; and a wider portion, which is provided at the tip of the narrower portion, and is formed to be larger than the narrower portion Be wide, At least a part of the wider part faces the inner surface. Such as the binding machine of claim 5, wherein the knock-out part is at a position opposite to the washer member, and has an opening into which the washer member can be fitted, The restriction part is fitted into the opening part by the washer member, and restricts the movement of the staple driver in a direction away from the main grip. Such as the binding machine of claim 5, wherein the knock-out part is at a position opposite to the washer member, and has a recess into which the washer member can be fitted, The restricting portion is fitted into the recessed portion by the washer member to restrict the movement of the staple driver in a direction away from the main grip. Such as the strapping machine of claim 1, wherein the main grip has a pushing mechanism, The pushing mechanism pushes the staple driver, Towards the first direction towards the tip of the main grip, and at the same time Go to the second direction that is close to the main grip. A binding machine includes: Main grip, containing staples; The staple driver is supported by the main grip so that the staple can be knocked out; and The buckle arm is rotatably installed on the main grip, and has the buckle of the staple after the buckle is knocked out by the staple driver, The staple driver has: The knock-out portion extends in a direction away from the main grip, and knocks out the staple to the buckle member; and Mounting part for mounting the knock-out part to the main grip, The knock-out part has: a base end supported by the main grip; and a tip end facing the staple; the entire length from the tip end to the base end extends straight.

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