JP6702008B2 - Gardening binding machine - Google Patents

Description

  The present invention relates to a binding machine for gardening.

  2. Description of the Related Art Conventionally, a horticultural binding machine has been widely used when binding branches or vines of fruit trees, vegetables, etc. to columns, or binding vegetables or bags together. In the horticultural binding machine, the tape is pulled out from the binding machine body by opening and closing the clincher arm, and the tape is stretched between the clincher arm and the tip of the binding machine body.In this state, push the binding machine body forward. The binding process is performed by a series of steps in which the object to be bound is wrapped around with the tape, and then the clincher arm is closed again to bind the tape with staples and cut the tape with a cutting blade.

  This type of horticultural binding machine has a structure in which staples are loaded into the magazine from the staple insertion opening provided at the rear of the magazine and the pusher unit is pushed from behind the staples to supply the staples to the ejection opening. There is. However, when the pusher unit is removed from the magazine for supplementing staples, etc., the pusher unit and the magazine are configured separately, so the pusher unit may pop out from the magazine due to the spring force of the pusher. .. In such a case, in a work place such as a field, the pusher unit may be lost by a vegetable branch or the like, and the pusher unit may be lost.

  Therefore, Patent Document 1 proposes a horticultural binding machine in which a pusher unit is integrally formed with a magazine. Specifically, a pin is provided on the guide portion of the staple filling portion (corresponding to a magazine), and the staple pressing tool contacts the pin when pulling out the staple pressing tool (corresponding to a pusher unit) from the guide portion when loading the staples. There is described a tape binding machine which prevents the staple pressing tool from coming off from the staple filling section by doing so.

Japanese Patent Laid-Open No. 6-183412

  However, the horticultural binding machine and the like described in Patent Document 1 have the following problems. That is, in a conventional horticultural binding machine, the staple ejection port is often formed of two parts, a cover member forming a pusher unit and a magazine. FIG. 12 shows an example of the configuration of a conventional general staple ejection port 240. As shown in FIG. 12, the ejection port 240 is composed of two parts, a front end portion 230a of the cover member 230 that constitutes the pusher unit 210 and front end portions 200a and 200b of the magazine 200. In this case, for example, if backlash or the like occurs due to wear of the cover member 230, the dimensions of the ejection port 240 change accordingly, and problems such as staple jamming and double striking of staples tend to occur. There is.

  Then, this invention is made|formed in view of the said subject, and it is providing the binding machine for gardening which can prevent the change of the ejection opening of a staple magazine.

A horticultural binding machine according to the present invention is rotatably attached to a binding machine body and the binding machine body, pulls out a tape from the binding machine body, and binds a bound object wound around the tape. A clincher arm and a magazine section attached to the binding machine body for ejecting staples in accordance with the rotation of the clincher arm are provided. The magazine section has a pair of side wall sections, and is an elongated member having an upper surface side opened. A magazine main body formed of a box body, a magazine main body in which the staples are loaded, a cover member slidably attached to an upper surface of the magazine main body, and the magazine main body attached to the cover member. A pusher unit that presses the staples loaded in the cartridge section, and an ejection port that ejects the staples that are pressed by the pusher unit from the front side on the upper surface of the magazine body, and the side wall. A projecting piece projecting inward from the upper edge of the section and a loading port for loading the staple are arranged side by side.

  The magazine portion is provided at a locked portion attached to the magazine main body portion and a rear end portion of the cover member, and is a lock for locking the pusher unit to the magazine main body portion by engaging with the locked portion. And a part.

  The lock portion is made of an elastic member, and elastically deforms in response to a pressing operation to release the engagement with the locked portion.

  According to the present invention, since the injection port and the loading port are provided independently of each other, it is possible to prevent the size of the injection port from varying due to abrasion of other components.

It is a perspective view showing an example of composition of a binding machine for gardening concerning one embodiment of the present invention. It is a front view showing an example of composition of a binding machine for gardening. It is sectional drawing which shows the structural example of the binding machine for gardening. It is sectional drawing which shows the state at the time of drawing out a tape of the binding machine for gardening. It is sectional drawing which shows the state at the time of cutting the tape of the binding machine for gardening. It is a figure which shows the structural example of a staple magazine part. It is a figure which shows the operation example of the staple magazine part at the time of loading a staple (the 1). It is a figure which shows the operation example of the staple magazine part at the time of loading a staple (the 2). It is a figure which shows the structure etc. of the modification of a driver (the 1). It is a figure which shows the structural example etc. of the conventional driver. It is a figure which shows the structure of the modification of a driver (the 2). It is a figure which shows the structural example of the staple magazine part provided with the conventional ejection opening.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[Configuration example of the binding machine 100 for gardening]
FIG. 1 is a perspective view showing an example of the configuration of a horticultural binding machine 100 according to the first embodiment, FIG. 2 is a front view thereof, and FIG. 3 is a sectional view thereof. 1 to 3, the right side of the paper surface is the front side of the horticultural binding machine 100, and the left side of the paper surface is the rear side of the horticultural binding machine 100.

  As shown in FIGS. 1 to 3, a horticultural binding machine 100 as a hand-held tool includes a clincher arm 10, a binding machine body 40, a handle 12, a tape pull-out section 20, a tape transport section 42, and a tape cutting section. A section 50, a staple magazine section 60, and a tape magazine section 80 are provided.

  The clincher arm 10 has a rear end rotatably attached to the binding machine body 40 and is biased rearward by a tension spring 16. The handle 12 is a portion to be gripped by the user, and a substantially middle portion thereof is rotatably attached to the clincher arm 10 and a front end portion thereof is rotatably attached to the binding machine body 40. With such a configuration, as the handle 12 is opened and closed, the clincher arm 10 is opened and closed relative to the binding machine body 40 by the lever principle of the handle 12.

  The tape pull-out section 20 is a mechanism for pulling out the tape TP from the binding machine body 40, and is provided at the tip of the clincher arm 10. The tape pull-out section 20 has a lock plate 22, a tape catch 24, and a tape plate 26.

  The lock plate 22 is configured to be rotatable around a shaft portion 22a provided at one end side as a fulcrum, and the other end side is biased toward the tape catch 24 side by a coil spring 23. The lock plate 22 locks the tape catch 24 by engaging with the tape catch 24 by the bias of the coil spring 23, and fixes the tape catch 24 at a position separated from the tape plate 26.

  The tape catch 24 is rotatably provided with the shaft portion 24a as a fulcrum, and is biased toward the tape plate 26 side by a torsion coil spring 25. When the lock of the lock plate 22 is released when the tape is pulled out, the tape catch 24 moves toward the tape plate 26 by the biasing force of the torsion coil spring 25.

  The tape plate 26 is arranged so as to face the tape catch 24, and the tip portion thereof extends from the lock plate 22 to the binding machine body 40 side. The tape plate 26 holds the tape TP between the extended portion and the tape catch 24, and pulls the tape TP upward from the tape guide 46 as the clincher arm 10 returns (opens).

  The tape transport unit 42 has a tape holder 44 and a tape guide 46. The tape holder 44 is a path for transporting the tape from the tape magazine section 80 to the tape guide 46, and is laid along the longitudinal direction of the binding machine body 40. Further, the tape holder 44 is configured to be openable and closable around one side in the longitudinal direction as a fulcrum, so that the tape TP can be easily set. The tape guide 46 is rotatably provided at the front end portion of the binding machine body 40 (tape holder 44) and holds the tip end portion of the tape TP in a state of being pulled out upward from the tape guide 46.

  The tape cutting unit 50 includes a cutting blade 51 that cuts the tape TP and a lock mechanism 52 that locks and unlocks the cutting blade 51. The cutting blade 51 is fixed to a predetermined position of the tape guide 46 by a lock mechanism 52 and can be pulled out from the tape guide 46 by releasing the lock mechanism 52.

  The staple magazine unit 60 is attached to the upper surface side of the binding machine main body 40 and is loaded with staples that are adhesively connected. The staple magazine unit 60 ejects staples by the closing operation of the clincher arm 10 and binds the overlapping portion of the tape TP. The configuration and function of the staple magazine unit 60 will be described later.

  The tape magazine unit 80 is attached to the rear end of the binding machine body 40 and accommodates a tape roll around which the tape TP is wound. The tape magazine unit 80 rotates forward by the pulling-out operation of the tape TP based on the opening/closing operation of the clincher arm 10, and sends the tape TP to the tape transport unit 42.

[Example of operation of the binding machine 100 for gardening]
Next, an example of the operation of the binding device 100 for gardening according to the present invention during the binding process will be described with reference to FIG. FIG. 4 is a sectional view showing a state in which the tape TP is pulled out in the horticultural binding machine 100. FIG. 5 is a cross-sectional view showing a state when the tape TP is cut in the horticultural binding machine 100.

  1 to 5, when the handle 12 is gripped by the user, the clincher arm 10 moves (falls) in a direction approaching the binding machine body 40. As a result, the lock plate 22 comes into contact with the tape guide 46 on the binding machine body 40 side and the lock plate 22 is pushed up, whereby the lock of the tape catch 24 by the lock plate 22 is released.

  When the lock of the tape catch 24 is released, the tape catch 24 rotates to the tape plate 26 side, and the tape TP is pressed against the tape guide 46 by the tip end portion 24b of the tape catch 24.

  Subsequently, when the user releases the grip of the handle 12, the clincher arm 10 moves (raises) in a direction away from the binding machine body 40. Accordingly, as shown in FIG. 4, the tape catch 24 is transferred from the tape guide 46 to the tape plate 26, and the tape TP is sandwiched between the tape plate 26 and the tape catch 24 and pulled out from the tape guide 46 to the upper side. Be done. Further, as the clincher arm 10 moves up, the lock plate 22 and the tape catch 24 are brought into an engaged state.

  Subsequently, the tape TP is pressed against the branches or columns of the vegetables or the like (hereinafter, the branches and columns are collectively referred to as the bundle 300) by extruding the bundle 300 into the clincher arm 10 by extruding in front of the binding machine body 40. ..

  Subsequently, when the user grips the handle 12 strongly again, the clincher arm 10 moves (falls) in a direction approaching the binding machine body 40, and the tape TP is wound around the binding object 300.

  As the clincher arm 10 descends, the tape guide 46 moves along the opposing inclined surfaces of the tape catch 24, and when the movement reaches a position where movement is restricted, the tape catch 24 moves away from the tape plate 26 (front). Part side). Along with this, the tape guide 46 also rotates to the front side.

  As the tape guide 46 rotates, as shown in FIG. 5, the cutting blade 51 also rotates and the blade provided at the tip end thereof pierces the tape TP, whereby the tape TP is cut. Further, the clincher 30 presses the staple magazine main body 62, and the staple magazine main body 62 tilts with the rear end portion as a fulcrum, whereby the staple is ejected from the ejection port by the driver 78, and the overlapping portion of the tape TP is bound by the staple. .. In the present embodiment, the binding operation of the bound object 300 is performed by such a series of steps.

[Example of configuration of staple magazine unit 60]
FIG. 6A is a perspective view showing an example of the configuration of the staple magazine unit 60, and FIG. 6B is a side view thereof. As shown in FIGS. 6A and 6B, the staple magazine unit 60 has a staple magazine main body 62 and a pusher unit 64.

  The staple magazine main body 62 is an elongated box body having an open upper surface side, and is attached to the upper surface portion of the binding machine main body 40. An ejection port 62a for ejecting staples is provided at the front end of the staple magazine body 62. The ejection opening 62a is formed by bending pieces 62b and 62b that are bent inward from the front ends of the side wall portions 62c and 62c of the staple magazine body 62, and from the upper end edges of the side wall portions 62c and 62c slightly rearward of the bending pieces 62b and 62b. It is composed of a space section defined by the protruding pieces 62d, 62d protruding in the direction of. That is, in the present embodiment, the ejection port 62a is composed of only one part of the staple magazine body 62.

  Locking members 14 and 14 are attached to the rear end portions of the side wall portions 62c and 62c of the staple magazine body 62, respectively. On the pusher unit 64 side of the lock members 14, 14, lock grooves 14a, 14a having a substantially V shape are formed. The lock members 14, 14 and the lock grooves 14a, 14a correspond to an example of the locked portion.

  The pusher unit 64 includes a cover member 66, a pusher guide 68, a coil spring 70, a knob 72, and a pusher 74 (see FIG. 3).

  The cover member 66 has an elongated rectangular cover member body 66c that covers the upper surface of the staple magazine body 62, and engagement pieces 66a and 66a that extend downward from the side front ends of the cover member body 66c. is doing. The engagement pieces 66a, 66a are slidably fitted in the side wall portions 62c, 62c of the staple magazine body 62. As a result, the cover member 66 slides along the longitudinal direction of the staple magazine body 62 using the side wall portions 62c and 62c as rails to open and close the upper surface portion of the staple magazine body 62. In the present embodiment, the opening on the upper surface side of the staple magazine body 62 when the cover member 66 is open serves as a loading port 62e for loading the staples. As described above, the ejection port 62a and the loading port 62e are provided side by side on the upper surface of the staple magazine body 62 from the front side.

  The cover member 66 is provided with stoppers 66b and 66b for preventing the cover member 66 from falling off when the cover member 66 is slid backward. The stoppers 66b and 66b are portions that extend slightly outward from the side portions of the cover member main body 66c, and are provided slightly outside the lock members 14 and 14. Accordingly, when the cover member 66 is slid rearward, the stoppers 66b and 66b are locked by the front end edges of the lock members 14 and 14.

  The pusher guide 68 is a rod-shaped member having a length substantially the same as the length of the staple magazine main body 62 in the longitudinal direction, and is attached (assembled) to the rear end portion of the cover member 66. The coil spring 70 elastically supports the pusher 74, and has a front end portion attached to the pusher 74 and a rear end portion attached to a rear end portion of the cover member 66. The pusher guide 68 is inserted inside the coil spring 70.

  The knob 72 is formed of an elastic member that has a mountain portion 72a and is elastically deformable, and its front end portion is integrally attached to the rear end edge of the cover member 66. The tab 72 of the knob 72 is caught (engaged) in the lock groove 14a of the lock member 14, and the pusher unit 64 is locked to the staple magazine body 62. At this time, since the inclined surface of the mountain portion 72a and the inclined surface of the lock groove 14a are in contact with each other, when a load for pressing the mountain portion 72a against the lock groove 14a is applied by the biasing force of the elastic member, the load is The cover member 66 can be firmly locked to the staple magazine main body 62 by acting in the closing direction (front side) of the cover member 66. On the other hand, when the staple 72 is loaded with staples, the rear end side is pushed down by elastic deformation, and the mountain portion 72a is disengaged from the lock groove 14a of the lock member 14, so that the pusher unit 64 is locked to the staple magazine main body 62. To cancel. The knob 72 and the chevron portion 72a correspond to an example of a lock portion.

  The pusher 74 has a substantially rectangular parallelepiped shape, is attached to the tip end portion of the coil spring 70, and has a through hole at the center thereof through which the pusher guide 68 is inserted. The pusher 74 moves as the cover member 66 slides, and presses the staple loaded in the staple magazine body 62 to the ejection opening 62a.

[Operation example of staple magazine unit 60]
7(A) to 7(C) are perspective views showing an example of the operation of the staple magazine unit 60 when loading staples, and FIGS. 8(A) to 8(C) are side views thereof. .. 7 and 8, the right side of the paper surface is the front side of the horticultural binding machine 100, and the left side of the paper surface is the rear side of the horticultural binding machine 100.

  For example, when the work of binding the branches of vegetables or the like to the support column is performed, as shown in FIGS. 7(A) and 8(A), the mountain portion 72 a of the cover member 66 is the lock groove 14 a of the lock member 14. By engaging with, the cover member 66 is locked to the staple magazine main body 62, and the upper surface portion of the staple magazine main body 62 is closed by the cover member 66.

  Next, as shown in FIGS. 7(B) and 8(B), when the tab 72 is pushed down by the user during the loading of staples, the lock member 14 of the chevron portion 72a of the cover member 66 is pressed. Is disengaged from the lock groove 14a, and the cover member 66 is slid backward and pulled out. At this time, since the stoppers 66b and 66b of the cover member 66 are hooked on the lock members 14 and 14, the cover member 66 does not come off from the staple magazine body 62. By pulling the cover member 66 rearward, the upper surface of the staple magazine body 62 is opened.

  Next, as shown in FIGS. 7C and 8C, the staple 2 is loaded into the staple magazine body 62 through the loading port 62e on the upper surface of the staple magazine body 62. Subsequently, the pusher unit 64 is moved forward to press the staple 2 and move it to the ejection opening 62a. Along with this, the cover member 66 also advances, so that the upper surface of the staple magazine body 62 is covered with the cover member 66 and the loading port 62e is closed. In the present embodiment, the staple 2 is loaded into the staple magazine body 62 by such a series of operations.

[Regarding Modified Example of Driver 78]
By the way, in the conventional horticultural binding machine, since the operation load during the binding work is high, the hands are easily tired during the operation, and the problem that the binding work for a long time becomes a heavy burden especially for users with low grip strength such as women. was there. As a result of studying this problem, the present inventors have found that the operation load of the horticultural binding machine is caused by the shear load at the time of separating the staples that are adhesively connected and the bending load of the staples.

  Therefore, as one of the means for solving the above-mentioned problem, the inventors of the present invention can reduce the operation load of the horticultural binding machine by devising the shape of the contact surface of the pushing driver with the staples and the like. I found it. The means for solving the above problem will be described in detail below.

  FIG. 9A shows an example of the configuration of the driver 78A according to the present embodiment, and FIG. 9B shows the shearing at the time of separation of the staples 2 connected when the driver 78A according to the present embodiment is used. It is a graph which shows a load. Note that in FIG. 9B, the vertical axis represents load and the horizontal axis represents stroke.

  As shown in FIG. 9A, the contact surface 78a of the driver 78A with the staple 2 is configured to incline from one end 78b toward the other end 78c. The angle θ formed by the horizontal surface 78s and the contact surface 78a is preferably in the range of 1°≦θ≦5°. The present embodiment shows an example in which the angle θ is 3°.

  When the staples 2 connected by the driver 78A having such a contact surface 78a are separated, first, one end portion of the crown portion 2a of the staple 2 is pressed by the one end portion 78b side of the driver 78A, and then the staple 2 is continued. The central portion of the crown portion 2a is pressed, and finally the other end portion 78c of the driver 78A presses the other end portion of the crown portion 2a of the staple 2. That is, the staple 2 is sheared by each leg. As a result, as shown in FIG. 9B, the peak of the shear load of the staple 2 can be dispersed twice, and the absolute values P1 and P2 of the peak values of the two times can be suppressed low.

  FIG. 10(A) shows an example of the configuration of a conventional driver 780, and FIG. 10(B) is a graph showing the shear load when the connected staples 2 are separated when the conventional driver 780 is used. Note that in FIG. 10B, the vertical axis represents load and the horizontal axis represents stroke.

  As shown in FIG. 10A, the contact surface 780a of the driver 780 with the crown portion 2a of the staple 2 is a flat surface. In this case, the entire contact surface 780a of the driver 780 simultaneously presses the crown portion 2a of the staple 2. As a result, as shown in FIG. 10B, since the staple 2 is sheared by pressing once, the peak of the shearing load is once, and the absolute value P3 of the peak value is larger than that of the driver 78A of the present embodiment. Will also grow.

  The contact surface 78a of the driver 78A is not limited to the inclined surface shape described above. FIG. 11A shows an example of the configuration of a driver 78B as a modified example, and FIG. 11B shows an example of the configuration of a driver 78C as a modified example.

  As shown in FIG. 11A, the driver 78B has a protruding portion 78d that protrudes more than the other surface at one end of the contact surface 78a, and the surface other than the protruding portion 78d is a flat surface. Even in this case, after the one end side of the staple 2 is pressed by the projecting portion 78d on one end side of the driver 78B, the center part and the other end part of the staple 2 are pressed by the other part of the driver 78B, so that the staple 2 is placed on one leg. Can be sheared one by one. Thereby, the shear load at the time of separating the connected staples can be dispersed.

  Further, as shown in FIG. 11B, the driver 78C has projecting portions 78e, 78f projecting from the other surface on each of one end side and the other end side of the contact surface 78a. A flat surface is formed between the protrusions 78e and 78f. Even in this case, after the both ends of the staple 2 are pressed by the protrusions 78e and 78f on the one end side and the other end side of the driver 78C, the central part of the staple 2 is pressed by the central part of the driver 78C. This also makes it possible to disperse the shear load at the time of separating the connected staples 2.

  Further, in the above-described embodiment, the shapes of the contact surfaces 78a of the drivers 78A, 78B, 78C are made different in order to disperse the shear load when the staple 2 is separated, but the present invention is not limited to this. There is no. For example, the installation heights of the projecting pieces 62d and 62d (see FIG. 6) forming the ejection opening 62a may be different from each other. As a result, since the second and subsequent staples 2 to be adhesively connected are supported by the projecting pieces 62d and 62d having different installation heights, the staple 2 at the foremost end is also tilted and pressed accordingly. Therefore, even if the contact surface 78a of the driver 78 is a flat surface as in the conventional case, the staple 2 at the front end can be sheared one by one and ejected from the ejection opening 62a.

  As described above, according to the present embodiment, since the ejection port 62a is composed of only the component (one component) that constitutes the staple magazine body 62, it is possible to prevent the dimension of the ejection port 62a from changing. .. That is, unlike the case where the injection port 62a is composed of two parts, it is not affected by backlash and the like due to abrasion of other parts, so that it is possible to prevent variations in the size of the injection port 62a. As a result, it is possible to avoid problems such as staple clogging at the ejection opening 62a and double-strike.

  Further, according to the present embodiment, the cover member 66 is provided with the knob 72 functioning as a leaf spring, and the cover member 66 can be detached from and attached to the staple magazine main body 62 by pushing down the knob 72 or the like. Therefore, the operability of the cover member 66 can be improved. As a result, it is possible to reduce the burden on the user when opening and closing the cover member 66. Further, since the cover member 66 can be securely locked to the staple magazine body 62 by a simple operation, the driving can be stabilized.

  Further, according to the present embodiment, since the pusher unit 64 is fixed to the staple magazine body 62, even if the pusher unit 64 is pulled (opened), the pusher unit 64 does not fall off from the staple magazine body 62. It can be surely prevented. Thereby, loss of the pusher unit 64 can be avoided.

  Although the present invention has been described using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. Various modifications and improvements can be added to the above-described embodiments without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the ejection port 62a is configured by using a part of the side wall portion 62c of the staple magazine body 62, but the invention is not limited to this. For example, the injection port 62a may be formed by integrating another member with the side wall portion 62c by welding, or the injection port 62a may be formed by fastening the other member to the side wall portion 62c with a fastening member such as a screw. It may be formed.

10 Clincher arm 14 Lock member (locked part)
14a Lock groove (locked part)
40 Binding machine main body 60 Staple magazine section (magazine section)
62 staple magazine body 62a ejection port 62e loading port 64 pusher unit 66 cover member 72 knob (locking part)
72a Mountain part (lock part)
100 Bundling machine for gardening 300 Bundling object (bound object)
TP tape

Claims (3)

With the binding machine body,
A clincher arm that is rotatably attached to the binding machine body, pulls out a tape from the binding machine body, and binds a bound object laid by the tape.
A magazine unit that is attached to the binding machine body and ejects staples in accordance with the rotation of the clincher arm,
The magazine section is
A magazine main body portion having a pair of side wall portions and an elongated box body having an open upper surface side,
A magazine body in which the staples are loaded,
A cover member slidably attached to the upper surface of the magazine body,
A pusher unit attached to the cover member and pressing the staples loaded in the magazine body,
On the upper surface of the magazine body, from the front side, an ejection port for ejecting the staple pressed by the pusher unit, a projecting piece projecting inward from the upper edge of the side wall , and the staple are loaded. A binding machine for horticulture, which is characterized in that it is provided with a loading port for each. The magazine section is
A locked part attached to the magazine body,
A lock portion which is provided at a rear end portion of the cover member and locks the pusher unit to the magazine body portion by engaging with the locked portion;
The tying machine for gardening according to claim 1, further comprising: The horticultural binding machine according to claim 2, wherein the lock portion is made of an elastic member and elastically deforms in response to a pressing operation to release the engagement with the locked portion.

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