TWI825345B - Bundling machine - Google Patents

Abstract

The binding machine system includes: a main handle, which contains staples; a staple driver, which is supported by the main handle to knock out the staples; and a staple arm, which is rotatably installed on the main handle. The handle; the nail fastener arm is a nail fastener with a staple after the button is knocked out. The staple driver system has: a knock-out part, which extends in a direction away from the main grip, and knocks out staples to the fastener; and an installation part, which is used to install 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.

Description

Bundling machine

The invention relates to a binding machine.

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

Japanese Patent Application Laid-Open No. 2017-222403 describes a gardening binding machine that can suppress dimensional changes in the injection port of a staple box. In FIG. 4 of Japanese Patent Application Laid-Open No. 2017-222403, a plate-shaped actuator 78 for driving out staples is shown. The staple driver 78 includes an L-shaped mechanical connection part (the part installed on the binding machine) and a knock-out part. The mechanical link is supported by strap holders 44 which are laid longitudinally along the binding machine body 40 . The knock-out part is bent from the mechanical connection part and extends toward the staple box part 60 .

However, in the case of a binding machine that uses a binding tape for binding, the load associated with the action of inserting staples through the binding tape and stapling the binding tape is extremely small. Therefore, when the operator holds the operating handle tightly, the force exerted from the staple fastener to the staple driver becomes a load applied to the curved portion of the staple driver. Therefore, the bent portion of the staple driver sometimes breaks.

An embodiment of the present invention provides a device that is less likely to break even if it is used repeatedly. Binding machine with durable and durable staple drive.

A binding machine of one aspect of the present invention includes: a main handle that accommodates staples; a staple driver that is supported by the main handle to knock out staples; and a staple arm that can rotate. The ground cover is installed on the main grip. The fastener arm is a fastener that fastens the staples knocked out by the staple driver. The staple driver system has: a knock-out part, which extends in a direction away from the main grip, and knocks out staples to the fastener; 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.

10: Bundling machine

11:Rotating shaft part

12: Tension spring

20: Main grip

22: Staple box unit

23: Staple Containment Department

24:Putter unit

25:Buckle guide

26:With box unit

28:With transport unit

28A:With retainer

28B:With guide

30: Belt cutting part

30A: Cutting knife

30B: Locking mechanism

32:staple drive

33: Knock out department

33D: Tip (upper end)

33L, 33R: side edge

33P: Base end (lower end)

33S: Slit (opening, concave part)

34:Installation Department

35: Washer component

35A:Surface

35B:Inner surface

35S: Restricted part (penetrating part)

35SS: concave part (restricted part)

36: Torsion coil spring

37: (main grip) shaft

38: Magnet (1st magnet)

39:Magnet

50:Buckle arm

52:Arm

54:Buckles

56:With holding unit

58:Lock the plate body

58A: Shaft

59:coil spring

60:With grabber

60A: Shaft (with grabber)

60B: Tip part

61: Torsion coil spring

62: With plate body

70: Operating handle

70A: Shaft (operating handle)

100:Crown Department

ST:staple

200: Bottom wall

200A: Upper surface

200B: Lower surface

201: Tip part

341: Engagement part

332: End (base end)

332N: Narrow part

332W: Wider part

332X: Limit construction

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 binding machine in standby state.

[Figure 3] is a cross-sectional view of the binding machine in a state where the belt body is grasped.

[Figure 4] is a cross-sectional view of the binding machine in the state after the belt body is pulled out.

[Figure 5] is a cross-sectional view of the binding machine in the state after inserting the object to be bundled.

[Figure 6] is a cross-sectional view of the binding machine in the state after starting to knock out staples.

[Figure 7] is a cross-sectional view of the binding machine in a state where staples are knocked out.

[Figure 8] is a cross-sectional view of the binding machine after finishing knocking out the staples.

[Fig. 9] is an enlarged cross-sectional view showing the staple driver in a state after starting to drive out the staple shown in Fig. 6.

[Fig. 10] is an enlarged cross-sectional view showing the staple driver in a state after knocking out the staple shown in Fig. 8.

[Fig. 11] is a perspective view of the staple driver shown in Fig. 9.

[Fig. 12] is a perspective view showing the staple driver according to the second embodiment of the present invention.

[Fig. 13] is a perspective view showing a staple driver according to a third embodiment of the present invention.

[Fig. 14] is a top 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 a staple driver according to the fourth embodiment of the present invention.

[Fig. 17] is a cross-sectional view showing the staple driver according to the fifth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described using drawings. The following embodiments are examples for illustrating the present invention, and do not limit the present invention to these embodiments. Fig. 1 is a right side view of the gardening bundler 10 according to this embodiment. FIG. 2 is a cross-sectional view of the binding machine 10 shown in FIG. 1 .

Furthermore, in the present embodiment, for convenience of explanation, the belt holder 28A is sometimes extended from the belt cassette unit 26 in which the belt TP for binding is stored, and is provided to the binding device from which the belt TP is pulled out. The side of the tip of the machine 10 facing the tape guide 28B (the right side of the paper in Fig. 1) is called the "front", and the opposite side (the left side of the paper in Fig. 1) is called the "rear side".

In addition, sometimes the side where the tape TP is pulled out from the tape guide 28B so as to face the tape holding unit 56 in the standby state (top of the paper in FIG. 1 ) is called "upper", and the opposite side is called "upper". (The lower part of the paper in Figure 1) is called the "lower part". The main structure of the binding machine 10 will be briefly described below. Next, the characteristic structure of the binding machine 10 will be described in detail.

The horticultural binding machine 10 of this embodiment can be used, for example, for the lure binding operation of crops (an example of the "object to be bundled" S). The binding machine 10 includes: a main handle 20; a staple box unit 22, which is rotatably installed on the main handle 20; a staple arm 50, which is rotatably installed on the main handle 20; and an operating handle. The handle 70 is rotatably mounted on 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 . Also, at the rear end of the main grip 20, a Cassette unit 26. The main handle 20 and the cassette unit 26 may also be integrally formed.

The tape cassette unit 26 is used for accommodating the tape body TP wound on the reel (hereinafter, the wound tape body TP is sometimes called the tape reel TR ("the wound tape body for binding"). ” an example).) organization. As shown in FIG. 1 etc., the cassette unit 26 is provided at the rear end of the main grip 20 .

The tape transport unit 28 includes a tape holder 28A and a tape guide 28B. The belt holder 28A is used for the belt cassette unit 26, and the path from the belt body TP to the belt guide 28B is laid along the longitudinal direction X of the main grip 20. The belt holder 28A includes: a bottom, the surface of one side facing the belt TP; and a cover, the surface facing the other side of the belt TP (hereinafter, the surface of the other side of the belt TP is sometimes referred to as "Inner surface".). The structure of the bottom and the cover is such that one side along the longitudinal direction X can be used as a fulcrum to open and close.

The belt guide 28B (see FIGS. 2 to 8 ) is a member for guiding the tip of the belt TP from the belt holder 28A to the upper side for pulling out. The belt guide 28B is rotatably provided at the front end of the belt holder 28A. The belt guide 28B has at least a part of the wall surface facing the surface, the inner surface and both sides of the belt TP, so that the belt TP will not fall off easily after being penetrated.

The tape cutting part 30 includes a cutting blade 30A for cutting the tape body TP, and a locking mechanism 30B for locking and unlocking the cutting blade 30A. When the cutting blade 30A is replaced, the locking mechanism 30B is unlocked to remove the cutting blade 30A. The cutting blade 30A is rotatable integrally with the tape guide 28B, and is pushed backward by an elastic member (not shown) in the standby state and during the holding operation. When the binding operation 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 urging force of an elastic member (not shown). The cutting blade 30A is moved so that the top of the blade tip faces the tape body TP.

Furthermore, various mechanisms can be used as a mechanism for cutting the belt body TP. For example, the belt TP can be rotated in conjunction with the belt guide 28B to cut the belt TP; the belt guide 28B and the cutting knife 30A can also be configured to move in the straight direction. The cutting knife 30A moves upward in the linear direction The belt TP is cut by moving, and the belt TP is cut by the stationary cutting knife 30A by moving the belt guide 28B and other components of the belt TP.

The staple driver 32 includes a plate-shaped plate body installed on the main handle 20 so as to face the vicinity of the front end of the staple receiving portion 23 of the staple box unit 22 . The staple driver 32 is formed to have a thickness that is approximately the same as the width of the staple ST, or is formed to have a thickness smaller than the width of the staple ST so that only one staple ST is struck out.

When the later-described staple arm 50 rotates in the closing direction relative to the main handle 20 , the staple box unit 22 is pressed down by the staple arm 50 and rotates in a direction closer to the main handle 20 . Therefore, the upper end of the staple driver 32 installed on the main grip 20 relatively enters the space in the staple receiving portion 23, so that the leading staple ST in the staple receiving portion 23 moves toward Knock out above. The structure of the staple driver 32 is described in detail below.

The staple ST after being knocked out is fastened by the fastener 54 after being tied through the belt body TP. The bent leg portion of the staple ST is positioned between the crown portion 100 of the staple ST and can hold the two overlapped strips TP.

The staple box unit 22 is formed as an elongated linear member. The rear end portion of the staple magazine unit 22 is mounted on the rear end portion of the main grip 20 so as to be rotatable about the rotation axis. However, the rotation angle is small, so the staple box unit 22 may be swingably mounted on the main grip 20 in some cases.

The staple box unit 22 includes a staple receiving portion 23 for accommodating the staple ST; and a push rod unit 24 . The staple accommodating part 23 is arranged along the longitudinal direction X of the main grip 20 and includes a bottom surface formed to be elongated along the longitudinal direction X of the main grip 20 in order to accommodate the staple ST therein; and two The side walls stand upright from the bottom and face each other; and the front wall presses against the side of the leading staple ST.

A plurality of staples ST can be accommodated in the staple accommodating portion 23 . The 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 for pressing the staple ST accommodated in the staple accommodating part 23 to the front, and is, for example, a member that is detachably installed with respect to the staple accommodating part 23 . The push rod unit 24 includes: a compression spring for pressing the rear end staple ST among the plurality of staples ST to the front; and a cover to cover the top of the staple receiving portion 23 . Furthermore, the push rod unit 24 is pulled out from the staple accommodating part 23 to open the upper part of the staple accommodating part 23, thereby making it possible to set the staple ST into the staple accommodating part 23 from above.

The fastener arm 50 is rotatable with respect to the main grip 20 through the rotation shaft portion 11 provided near the rear end, and is installed so as to be moved toward the main grip 20 through the tension spring 12 The direction in which the angle becomes larger (the fastener arm 50 is pushed in the opening direction θ1 opposite to the closing direction θ2 described later). The fastener arm 50 includes an arm part 52, a fastener part 54, and a belt grip unit 56 (an example of a "grip part"). The shape of the arm 52 extends linearly to the tip, so that a C-shaped opening can be formed between the arm 52 and the main grip 20 .

The fastening member 54 is a member used for bending the legs of the staple ST to perform fastening. The fastening member 54 is provided at the tip of the fastening member arm 50 so that when the fastening member arm 50 is closed in a direction in which the angle with the main grip 20 becomes smaller, that is, toward the opposite side of the aforementioned opening direction θ1 After the closing direction θ2 is rotated, it faces the tip of the staple driver 32 .

With this structure, the leg portion of the staple ST driven out by the staple driver 32 is fastened by the fastening member 54 and bent inward. The structure including the fastener 54 provided on the fastener arm 50 for performing the binding process is sometimes called a "binding part". The structure of the fastening member 54 is described in detail below.

The belt holding unit 56 is a mechanism for holding the end of the belt body TP being pulled out of the belt guide 28B at the tip of the autonomous handle 20 . The strap holding unit 56 is provided at the tip of the arm portion 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 body 58 is such that the shaft 58A provided on one end side can be used as a fulcrum. At the same time, the other end is pushed toward the belt grabber 60 side by the coil spring 59. The locking plate body 58 is pushed by the coil spring 59 to engage with the belt grabber 60, thereby locking the belt grabber 60 and fixing the belt grabber 60 at the gap between the belt plate body 62. Location.

The belt grabber 60 is configured to rotate using the shaft portion 60A as a fulcrum, and is pushed toward the belt plate body 62 by the torsion coil spring 61 . The structure of the belt grabber 60 is such that when the belt is pulled out and the locking by the locking plate 58 is released, the pointed tip 60B moves due to the push of the torsion coil spring 61 to the belt plate body 62 side.

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

The operating handle 70 is the part that the user holds. Its approximately middle shaft portion 70A is rotatably installed on the nail arm 50 , and its front end is installed on the main handle 20 . With this structure, the part held by the user is used as the force application point, the rotation axis with the fastener arm 50 is used as the fulcrum, and the front end of the main grip 20 is installed as the lever of the force application point. In principle, as the operating handle 70 opens and closes, the fastener arm 50 can open and close relatively relative to the main handle 20 .

[Operation of binding 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 becomes open relative to the main grip 20 in the standby state shown in FIGS. 1 and 2 . From this state, the user tightly grasps the operating handle 70 and the main handle 20 , whereby, as shown in FIG. 3 , the fastener arm 50 rotates in the closing direction relative to the main handle 20 .

Furthermore, when the fastener arm 50 is rotated in the closing direction to a predetermined position with respect to the main handle 20, in order to pull out the belt body TP (see FIG. 4), the fastener arm 50 is executed to hold the belt. unit 56. Holding action of holding belt body TP.

After that, when the grip of the main handle 20 is weakened so that the fastener arm 50 rotates in the opening direction relative to the main handle 20, as shown in Figure 4, in the state of holding the belt body TP, the fastener The belt holding unit 56 of the fastener 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 fastener arm 50 and the main grip 20 .

As shown in Figure 5, in this state, when a bundled object S such as a sapling or a branch is inserted from the outside of the stretched belt TP, and the fastener arm 50 is rotated in the closing direction again, as shown in Figure 6 As shown in the figure, it is a belt loop forming a belt TP for binding the bundled object S. By being pressed by the staple arm 50 , the staple box unit 22 rotates in the closing direction, so the staple ST is driven in by the staple driver 32 .

Thereby, as shown in FIGS. 7 and 8 , both ends of the belt loop that binds the bundled objects S are bound by the staples ST. Furthermore, the tape body TP is cut by the cutting knife 30A, and the binding operation is performed. In this way, in the first grasping action, the holding action is executed, and in the second grasping action, the binding action is executed. Then, by alternately executing the holding operation and the binding operation, the bundled object S can be bundled.

Below, the characteristic structure of the binding machine 10 will be described in detail.

[staple drive]

FIG. 9 is an enlarged cross-sectional view of the staple driver 32 in the state after starting to drive out the staple ST shown in FIG. 6; FIG. 10 is an enlarged view showing the state after finishing knocking out the staple ST shown in FIG. 8. Cross-sectional view of staple drive 32 in 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 transport unit 28 and an upper surface 200A facing the staple box unit 22 .

The staple driver 32 is mounted on the upper surface 200A. In this embodiment, as shown in FIGS. 9 and 10 , the staple driver 32 has a knockout part 33 for knocking out the leading staple ST to the fastening member 54 and a mounting part 34 for mounting the knocker. The outlet 33 is on the main handle 20; and the washer member (support washer) 35 is provided between the bottom wall 200 and the knock-out portion 33. The gasket member 35 is subjected to heat treatment to improve wear resistance. The wear-resistant metal parts will not wear out better than the bottom wall 200. In order to reduce the friction coefficient, silicone grease or the like may be coated on the surface of the gasket member 35 .

The tip (upper end) 33D of the knockout portion 33 is pressed against the staple guide 25 constituting the front wall of the staple receiving portion 23 by the urging force of the torsion coil spring 36 . As described above, the staple ST accommodated in the staple accommodating portion 23 is pressed against the staple 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 The crown part facing the leading 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 a substantially rectangular flat plate shape and extends in a direction away from the bottom wall 200 of the main handle 20 . The knock-out part 33 has a tip 33D, a base end 33P, and side edges 33L and 33R constituting the four sides of the knock-out part 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 to the tip 33D or the portion next to it is in contact with the bottom wall 200 or the gasket member 35 attached to the bottom wall 200 . In other words, the base end 33P of the knock-out portion 33 as one end is in contact with the main grip 20 and the like, and the tip 33D as the other end of the knock-out portion 33 is extended so as to face the staple. ST. The base end 33P and the portion next to it are an example of "the end portion arranged on the main grip side of the knock-out portion".

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

In the following description, in the longitudinal direction (front-back direction) X of the main grip 20, the direction in which the rotation axis portion 11 of the main grip 20 moves toward the tip portion 201 (the forward direction) may be referred to as the first direction X1. In addition, in the height direction (up-and-down direction) Z that is perpendicular to the longitudinal direction 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 knock-out portion 33 including the base end 33P and its side portion is disposed on the main grip 20 side. In the state after rotating in the closing direction θ2 of the closing fastener arm 50 (see, for example, FIG. 8 ), the end portion 332 is located at the first position P1. In the state after being rotated in the opening direction θ1 of the fastener arm 50 (see, for example, FIG. 2 ), the end 332 is located at a second position P2 that is closer to the tip of the main grip 20 than the first position P1 . That is to say, the staple driver 32 is structured to slide forward and backward along the longitudinal direction X of the main grip 20 and is slightly displaceable.

When the binding machine 10 according to the first embodiment of the present invention is configured as above, as shown in FIG. 11 , the knock-out portion 33 for knocking out the staple ST has the tip 33D acting on the reaction force from the staple ST. , the entire length extending to the base end 33P supported by the main grip 20 can form a straightly extending flat plate shape.

The previous 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 grip 20 . The reaction force from the staple ST is received through the bent portion, so cracks due to fatigue may occur in the bent portion that is repeatedly deformed. On the other hand, in the first embodiment of the present invention, the knockout portion 33 is in the shape of a straight flat plate, so that it can receive the reaction force from the staple ST without passing through the bent portion. Even if the binding machine 10 is used repeatedly, the staple driver 32 is unlikely to be damaged.

It is preferable that the tip 33D of the knock-out portion 33 moves forward and backward in accordance with the movement of the staple receiving portion 23. The previous staple driver was formed by a deformed plate spring of the staple driver itself. In contrast, in the first embodiment, the end portion 332 of the staple driver 32 is slidable 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 knockout portion 33 can follow the movement of the staple receiving portion 23 . Even if the binding machine 10 is used repeatedly, the staple driver 32 is unlikely to be damaged. The material of the staple driver 32 does not necessarily have to have repeated durability against bending, so it is possible to select an inexpensive material.

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

[Second Embodiment]

In the second embodiment, description of matters common to the first embodiment will be omitted, and only differences will be described. FIG. 12 is a perspective view of the staple driver 32 according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that it is a pressing mechanism that presses the staple driver 32 in the first direction X1 and the second direction Z2.

In the second embodiment, instead of the torsion coil spring 36, the staple driver 32 is pushed by magnets 38 and 39 (an example of a "pressing mechanism"). The staple driver 32 is formed of a strong magnetic body that is attracted by a magnet. The magnet (first magnet) 38 that presses the staple driver 32 in the first direction X1 is disposed at a position further forward in the first direction X1 than the knockout portion 33 . In the illustrated example, the peripheral surface of the shaft portion 37 facing from the front is fixed to the knock-out portion 33 .

Similarly, the magnet (second magnet) 39 that presses the staple driver 32 in the second direction Z2 is disposed at a position further forward in the second direction Z2 than the knockout portion 33 . 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 can be configured to be displaceable between the first position P1 (see FIG. 8 ) and the second position P2 (see FIG. 2 ). Compared with the first embodiment, the number of elastically deformed members is reduced, so the life of the binding machine 10 can be extended.

[Third Embodiment]

FIG. 13 is a perspective view of the staple driver 32 according to the third embodiment of the present invention. The third embodiment includes a washer member 35 that restricts the clearance of the knock-out portion 33 from the washer member 35 , that is, restricts the knock-out portion 33 from moving in a direction away from the main grip 20 (in the case of the buckle pin). The point of the restriction portion 35S that restricts the movement of the staple driver 32 in the directions θ1 and θ2 of the staple arm 50 is different from the first embodiment. In this embodiment, the restriction portion 35S is composed of a penetration portion 35S that penetrates the surface 35A and the inner surface 35B of the gasket member 35 . The penetration portion 35S is a base end 33P formed in the knock-out portion 33 that is fitted. Side restriction structure (332N, 332W, 35S). This can restrict the knock-out portion 33 from being separated from the gasket member 35 .

However, when there is no such restricting portion 35S, in the event that staple clogging occurs, the staple arm 50 rotates in the opening direction θ1 relative to the main grip 20 (see FIG. 7 of the first embodiment). ), the sometimes clogged staple ST is picked up together with the knockout part 33 (it is released from the washer member 35). In this case, there is a state after finishing driving out the staple ST (see FIG. 10 of the first embodiment). When the staple box unit 22 returns to the original position (direction θ1), a load is applied to the driving force. There is a risk of deformation due to part 33.

On the other hand, by providing the restriction portion 35S and fitting the restriction structures (332N, 332W, 35S) therein, even if a staple jam occurs, the knock-out portion 33 is restricted from being separated from the washer member 35 (after being picked up). situation), so it can prevent the above-mentioned deformation from happening before it happens. In the example shown in the figure, the restriction structure (332N, 332W, 35S) is composed of a narrower portion 332N and a wider portion 332W provided on the staple driver 32.

FIG. 14 is a plan view of 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. regarded as narrow The penetration portion (restriction portion) 35S of the 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 of the main grip 20 (shown in FIG. 2 ). The washer member 35 is fixed to the bottom wall 200 of the main grip 20 by locking screws (see FIG. 9 of the first embodiment).

FIG. 15 is a front view of the knockout portion 33 shown in FIG. 13 . As shown in FIG. 15 , the narrower portion 332N and the wider portion 332W are provided at the base end portion 332 of the knockout portion 33 . In the width direction Y of the main grip 20 (shown in FIG. 1 ), the narrow portion 332N is formed to be narrower than the through portion 35S. The wider 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 through portion 35S.

As shown in FIG. 13 , in a state where the narrow portion 332N is inserted through the penetration portion 35S, both ends of the wide portion 332W face the gasket member 35 from the inner surface 35B side of the gasket member 35 . When a staple jam occurs and the knock-out portion 33 is stretched, the wider portion 332W is in contact with 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 according to the fourth embodiment of the present invention. The fourth embodiment is different from the third embodiment in the shapes of the restricting portion and the restricting structure. In the example shown in the figure, a slit 33S is formed as an example of an opening in the knock-out portion 33 , and the tip portion (restriction portion) 352 of the gasket member 35 penetrates the slit 33S. 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 recess may be formed in the knock-out part 33, and the tip part 352 of the gasket member may be fitted into the recess. According to the fourth embodiment, like the third embodiment, the movement of the knock-out portion 33 can be restricted to prevent the knock-out portion 33 from being deformed beforehand.

[Fifth Embodiment]

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

The restriction structure 332X is formed in a shape to fit into the recessed portion 35SS. Specifically, the restriction structure 332X is formed on the base end including the base end 33P of the knock-out portion 33 and the base end portion next to it, and extends from the base end portion of the knock-out portion 33 to bend along the extending direction of the gasket member 35 . That is, the base end portion of the knock-out portion 33 is formed in an L shape. This restriction structure 332X is fitted into the recessed portion 35SS, thereby restricting the movement of the knockout portion 33 . According to the fifth embodiment, similar to the third and fourth embodiments, it is possible to prevent the knock-out portion 33 from being deformed beforehand.

The embodiments described above are provided to facilitate understanding of the present invention and are not intended to limit the interpretation of the present invention. The components included in the embodiments and their arrangement, materials, conditions, shapes, sizes, etc. are not limited to the examples and can be changed appropriately. In addition, structures shown in different embodiments may be partially replaced or combined. For example, the mechanism for tying both ends of the band body loop uses staples ST. However, the present invention is not limited thereto, and other mechanisms can also be used to tie the band body loop.

A binding machine (10) of one aspect of the present invention includes: a main handle (20), which houses staples (ST); and a staple driver (32), which is supported by the main handle (20). A stapler (ST) that can be knocked out; and a stapler arm (50) that is rotatably mounted on the main grip (20). The fastener arm (50) is a fastener (54) having a fastener (54) that fastens the staple (ST) knocked out by the staple driver (32). The staple driver (32) has: a knocking-out portion (33), extending in a direction away from the main grip (20), to knock out the staple (ST) to the fastening member (54); and a mounting portion ( 34), used to install the knock-out part (33) on the main grip (20). The structure of the mounting part (34) extends from the side edges (33L, 33R) of the knock-out part (33) to the longitudinal direction (X) of the main grip (20).

In the above aspect, the staple driver (32) may also be displaceably mounted on the main handle (20).

In the above aspect, the structure of the fastener arm (50) is such that the angle between the fastener arm (50) and the main handle (20) becomes smaller in the closing direction (θ2), and in the closing direction (θ2) The staple driver (32) can be rotated between the opening direction (θ1) and the opposite direction of θ2), and the staple driver (32) can also be set to After the staple arm (50) is rotated in the closing direction (θ2), the staple (ST) is knocked out. The staple driver (32) may also be disposed at the end (332) of the knock-out part (33) on the side of the main grip (20), and the staple arm (50) is rotated in the closing direction (θ2) In the latter state, it is located at the first position (P1). It can also be displaceably installed on the main handle (20), so that the end (332) is located behind the first position (P1) of the rotating fastener arm (50) in the opening direction (θ1). It should also be close to the second position (P2) of the tip (201) of the main grip (20).

In the above aspect, the main grip (20) may have a washer member (35A) disposed between the main grip (20) and the staple driver (32) and having a surface (35A) on which the staple driver (32) slides. 35).

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

In the above aspect, the restriction part (35S) may be a recessed part (35SS) into which the staple driver (32) is fitted.

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

In the above aspect, the restriction part (35S) may have a penetrating part (35S) penetrating the surface (35A) and the inner surface (35B) on the opposite side of the surface (35A). The knock-out part (33) may penetrate the penetration part (35S).

In the above-mentioned aspect, the knock-out part (33) may have a narrow part (332N) penetrating the penetration part (35S), and a wide part (332W) formed to be smaller than the narrow part (332N). Even wider. At least part of the wider portion (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 gasket member (35) can fit at a position facing the gasket member (35). The restriction part (352) may have the washer member (35) fitted into the opening part (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 also be located opposite to the gasket member (35). At the position, there is a recess (33S) into which the gasket member (35) can fit. The restriction part (352) may have the washer member (35) fitted into the recessed part (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 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. The second direction (Z2) of (20).

According to the present invention, it is possible to provide a binding machine including a staple driver that is less likely to break even if used repeatedly and is highly durable.

10: Bundling machine

11:Rotating shaft part

12: Tension spring

20: Main grip

22: Staple box unit

26:With box unit

28:With transport unit

28A:With retainer

28B:With guide

50:Buckle arm

52:Arm

54:Buckles

56:With holding unit

62: With plate body

70: Operating handle

TP: belt body

TR: with reel

Claims (13)

A binding machine, which includes: The main grip contains staples; a staple driver supported by the main grip for tapping out the staple; and A fastener arm is rotatably mounted on the main handle and has a fastener for the staple after the fastener is knocked out by the staple driver, This staple drive system has: A knocking-out portion extends in a direction away from the main handle to knock out the staple from the fastening member; and a mounting portion for mounting the knockout portion 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. The binding machine of claim 1, wherein the staple driver is displaceably mounted on the main handle. Such as the binding machine of claim 1, wherein the structure of the fastener arm is rotatable between the closing direction in which the angle with the main handle becomes smaller, and the opening direction in the opposite direction of the closing direction. , The staple driver is configured to knock out the staple after rotating the fastener arm in the closing direction, The staple driver is displaceably mounted on the main grip, so that The end of the knock-out portion disposed on the main handle side is in the first position after rotating the fastener arm in the closing direction, The end of the knock-out portion disposed on the side of the main grip is located closer to the tip of the main grip than the first position when the fastener arm is rotated in the opening direction. The 2nd position. The binding machine of any one of claims 1 to 3, wherein the main handle has a washer member disposed between the staple driver and a surface on which the staple driver can slide. The binding machine of claim 4, wherein the washer member has a limiting portion that limits the movement of the staple driver in a direction away from the main grip. The binding machine of claim 5, wherein the limiting portion is fitted into the recessed portion of the staple driver. The binding machine of claim 6, wherein the recess is formed on the surface. As in the binding machine of claim 5, the restricting portion has a penetrating portion penetrating the surface and the inner surface on the opposite side of the surface, The knock-out portion penetrates the penetration portion. The binding machine of claim 8, wherein the knock-out portion has: a narrower portion that penetrates the through portion; and a wider portion that is provided at the tip of the narrower portion and is formed to be smaller than the narrower portion. Be wide, At least a part of the wider portion is opposite to the inner surface. The binding machine of claim 5, wherein the knock-out portion is located at a position opposite to the washer member and has an opening into which the washer member can fit, The restricting part is a state in which the washer member is fitted into the opening to restrict the movement of the staple driver in a direction away from the main grip. The binding machine of claim 5, wherein the knock-out portion is located at a position opposite to the washer member and has a recessed portion into which the washer member can fit, The restricting portion is a state in which the washer member is fitted into the recessed portion to restrict the movement of the staple driver in a direction away from the main grip. For example, the binding machine of claim 1, wherein the main handle has a pushing mechanism, The pushing mechanism pushes the staple driver, in the first direction toward the tip of the main grip, and at the same time Go in the second direction close to the main grip. A binding machine, which includes: The main grip contains staples; a staple driver supported by the main grip for tapping out the staple; and A fastener arm is rotatably mounted on the main handle and has a fastener for the staple after the fastener is knocked out by the staple driver, This staple drive system has: A knocking-out portion extends in a direction away from the main handle to knock out the staple from the fastening member; and a mounting portion for mounting the knockout portion to the main grip, The knock-out part has: a base end, supported by the main handle; and a tip, opposite to the staple; the entire length extending straight from the tip to the base end.

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