JP2003341615A - Tape guide device for binding apparatus for horticulture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent reverse-movement of a tape in a binding apparatus for horticulture. <P>SOLUTION: A rib 6c is formed on the ceiling face of a tape guide 6 fitted on a driver handle 2 of the horticulture tying and binding apparatus, and two plate springs 24a, 24b are mounted on the bottom plate part thereof. The plate spring 24a located downstream side is put resiliently in contact with the rib 6c so that a tape T can be sandwiched by the plate spring 24a and the rib 6c, and the plate spring 24b located upstream side is placed in contact with the tape. If the tape roll is reversed and the tape is pulled back, a tension is applied on the portion of the tape between the rib 6c and the tape roll, and the plate spring 24b located upstream side is pulled up by means of the friction of the tape, thus the path of the tape is bent, resulting in increase in the tape's frictional resistance, thereby the reverse-movement of the tape T is prevented. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape guide device for a horticultural binding machine, and more particularly to a tape guide device for a horticultural binding machine that prevents the tape from moving backward.

[0002]

2. Description of the Related Art In the cultivation of vine crops such as grapes, cucumbers, melons and tomatoes,
A horticultural tying machine is used for tying the vines and branches of these plants along struts and shelves. The horticultural binding machine is a hand-held stapler type tool that combines a driver handle and a clincher arm.A tape magazine is attached to the rear of the driver handle, and the tape loaded in the tape magazine is pulled out from the tip of the driver handle. Use by pulling out from the mouth.

When the driver handle and the clincher arm are closed once, the tip of the tape is captured by the tape gripping device provided in the clincher arm, and when the driver handle and the clincher arm are opened, the tape is held between the driver handle and the clincher arm. The tape is stretched. And
If you wrap the tape around the branches and stanchions of the crop and close the driver handle and clincher arm with a stronger force than the previous time, the overlapping part of the tape hung on the branches will be stapled and the driver handle cutter at the same time. The blade cuts the tape in the vicinity of the binding portion, and the tape loop wound around the branch is separated from the tape on the main body side.

When binding agricultural products, a horticultural binding machine is used in various postures. At this time, the tape roll in the tape magazine may reversely rotate and the tip of the tape may be pulled back into the driver handle. In this case, there is a problem that the tape gripping device on the clincher arm side may fail to capture the tip of the tape on the driver handle side and fail to bind, and it also takes time and effort to pull the tip of the tape to adjust the pull-out amount. .

In the conventional horticultural binding machine, one leaf spring is arranged in the driver handle, and the tape is pressed against the wall surface of the passage or the guide by the leaf spring, and tension is applied to the tape to prevent loosening. As described above, the tape often returns due to the weak effect of preventing the backward movement. Therefore, there arises a technical problem to be solved in order to prevent the tape from moving backward, and an object of the present invention is to solve the above problem.

[0006]

SUMMARY OF THE INVENTION The present invention is proposed in order to achieve the above-mentioned object, and is a stapler type binding machine for gardening in which a driver handle and a clincher arm are combined. In a tape guide device of a horticultural binding machine, which is configured to provide a tubular tape guide and pass the tape loaded in the tape magazine at the rear part of the driver handle through the tape guide and pull out from the tip of the tape guide, Two leaf springs are arranged in series in the front and back on the wall surface, the tips of the two leaf springs are directed to the downstream side of the tape path, and a protrusion is formed on the inner wall surface facing the leaf spring mounting portion, which is located on the downstream side. The leaf spring is elastically contacted with the protrusion, the tape is sandwiched by the leaf spring and the protrusion, and the leaf spring on the upstream side is brought into contact with the tape to be pulled back to the tape. Giving anti-a is to provide a tape guide device of horticultural binding machine capable of preventing reversal of the tape.

Another object of the present invention is to provide a tape guide device for a horticultural binding machine, in which fixed stoppers are interposed between the base portion and the intermediate portion of the upstream leaf spring to limit the swing angle of the leaf spring.

Further, two leaf springs are arranged in series in the front and rear direction on the inner wall surface of the tape guide, the tips of the two leaf springs are directed to the downstream side of the tape path, and two leaf springs are provided on the inner wall surface facing the leaf spring mounting portion. The protrusions are arranged in series in the front and rear, the two leaf springs are elastically contacted with the protrusions respectively, and the tape is sandwiched between the two pairs of leaf springs and the protrusions, and pullback resistance is applied to the tape to prevent the tape from moving backward. A tape guide device for a binding machine for gardening is provided.

Further, the two leaf springs are tape springs for a horticultural binding machine, which is a leaf spring in which two leaf springs, long and short, are integrated by processing a U-shaped notch in one leaf spring,
Another object of the present invention is to provide a tape guide device for a horticultural binding machine, in which the tip of the upstream leaf spring has a mountain shape or a notch shape.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. First, the overall configuration and operation of the horticultural binding machine will be described. Fig. 1 shows a horticultural binding machine 1, in which a driver handle 2, a clincher arm 3 and a lower handle 4 are combined in a pliers type, a tape magazine 5 is attached to the rear part of the driver handle 2, and the tape magazine 5 is loaded. The gardening tape T is pulled out from the tip of the tape guide 6 through the tape guide 6 attached to the upper surface of the driver handle 2, passed through the vertical tape guide 8 at the tip of the staple magazine 7, and hung downward. The driver handle 2 and the staple magazine 7 are connected by a shaft 9 at the rear part, and like the normal stapler, the driver handle 2
On the other hand, the staple magazine 7 can rotate within a slight angle range. A notch blade-shaped cutter blade 10 is attached to the tip of the driver handle 2, and a plate-like driver 11 for ejecting staples is attached slightly behind the cutter blade 10.

Next, the structure of the clincher arm 3 side will be described. FIG. 2 shows a state in which the tape magazine 5 and the tape guide 6 are omitted, and the driver handle 2 and the lower handle 4 are gripped and the driver handle 2 and the clincher arm 3 are lightly closed. At this time, the clincher 12 provided at the tip of the clincher arm 3 and the tip of the staple magazine 7 are in contact with each other, and the clincher 12 and the driver 11 face each other.

The front and rear rotatable picking plate 13 attached to the front part of the clincher arm 3 is biased toward the pivot side (right in the figure) of the horticultural binding machine 1 by the torsion coil spring 14 shown in FIG. And faces the tape support plate 15 arranged in front of it as shown in FIG. A stopper 16 is provided near the base of the clincher arm 3.
Is fixed, and a clutch lever 17 which is rotatable up and down is attached below the stopper 16. A long push plate 18 is inserted between the picking plate 13 and the stopper 16 in the front-rear direction.As shown in FIG. 1, the push plate 18 includes a spring receiving hole 19 and a clincher arm at the rear portion.
It is biased in the ascending direction by a torsion coil spring 20 that is interposed between the bottom surface and the bottom surface of 3.

As shown in FIG. 2, the front end of the push plate 18 is engaged with the front recess of the picking plate 13, and is pressed by the picking plate 13 so that its rear end is in pressure contact with the front surface of the stopper 16. A convex portion 21 that bulges upward is formed on the rear portion of the push plate 18, and when the clincher 12 and the staple magazine 7 are in contact with each other,
The convex portion 21 approaches or contacts the roller 22 provided on the driver handle 2.

When the driver handle 2 and the clincher arm 3 are further closed from the state shown in FIG. 2, the push plate 18 is pushed down by the roller 22 as shown in FIG. 3, and the push plate 18 is pushed down as shown in FIG. And the stopper 16 are disengaged, and the push plate 18 is pushed by the picking plate 13 and retracts. The picking plate 13 rotates toward the tape support plate 15 and pierces the tip of a tape (not shown) hanging downward from the vertical tape guide 8 on the front surface of the staple magazine 7 and hits the tape support plate 15. Hold the tip of the tape in contact. When the driver handle 2 and the lower handle 4 are released from this state and the driver handle 2 and the clincher arm 3 are opened,
The tape is pulled out from the driver handle 2 side, and the tape is stretched between the driver handle 2 and the clincher arm 3. Then, by pushing the horticultural binding machine 1 forward and inserting a branch of a crop and a strut between the driver handle 2 and the clincher arm 3, the tape is hung on the branch and the strut.

Next, when the driver handle 2 and the clincher arm 3 are closed and returned to the state shown in FIG. 4, the tip portion of the tape (not shown) held by the tape support plate 15 is near the exit of the vertical tape guide 8. To form a tape loop on the downstream portion of the tape. Then, when the distance between the driver handle 2 and the clincher arm 3 is further narrowed, as shown in FIG. 5, the driver 11 hits the staples in the staple magazine 7 to start the ejection, and the cutter blade 10 fronts the tape support plate 15. Touch the tape near the top edge. At the same time, the inclined cam surface 23 on the lower surface of the rear portion of the push plate 18 contacts the clutch lever 17, and the push plate 18 starts to move forward in association with the lowering of the driver handle 2 by the cam action of the inclined cam surface 23. Then, as shown in FIG. 6, the driver 11 ejects staples to bind the tape, and when the cutter blade 10 cuts the tape, the picking plate 13 rotates forward to move the cutter blade.
It is retracted from the path of 10, and the rear end of the push plate 18 rides on the front surface of the clutch lever 17. When the driver handle 2 and clincher arm 3 are opened after binding is complete,
As shown in FIG. 7, the push plate 18 released from the pressing by the roller 22 rises together with the clutch lever 17 by the torsion coil spring 20 shown in FIG.
The rear end is engaged with the stopper 16 to return to the initial state of FIG.

Next, the tape guide device of the present invention will be described. FIG. 8 shows the front part of the driver handle 2, and in the tubular resin tape guide 6 attached to the upper surface of the driver handle 2, the bottom plate part 6a and the upper cover part 6b are connected by a thin hinge part. It is an integrally molded part, and the upper cover part 6b can be opened and closed. A rib 6c hanging from the ceiling surface is formed in the front part of the upper cover part 6b, and the tape passes between the leaf spring 24 attached to the bottom plate part 6a and the rib 6c, and the lower end opening 6d of the front wall surface is formed. Drawn from.

FIG. 9 shows a leaf spring 24. A rectangular leaf spring is provided with a U-shaped notch in the central portion so that the long and short spring portions 24a and 24b operate independently. In the state where the upper cover portion 6b of the tape guide 6 is bound as in 8, the downstream long spring portion 24a elastically contacts the rib 6c, and the upstream short spring portion 24b approaches the ceiling surface before the rib 6c. ing.
FIG. 10 shows a state in which the upper cover portion 6b is opened, and when the leaf spring 24 is not stressed, the long spring portion 24a rises to the same angle as the short spring portion 24b to form a single piece.

FIG. 11 shows a state in which the tape T is pulled out at the time of a binding operation. The long spring portion 24a and the short spring portion 24b are pushed down by the tension tension of the tape T, and the tape T is pulled out substantially linearly. . FIG. 12 shows a case where a rotational force in the reverse rotation direction is applied to the tape roll in the tape magazine due to a change in work posture. Since the long spring portion 24a and the rib 6c sandwich the tape T, the rib 6c and the tape roll are The tape between and is pulled back, and the short spring portion 24b is pulled up by the friction of the tape T at this time. Since the tape T is bent almost at a right angle at the tip of the short spring portion 24b, the stronger the backward tension of the tape T is, the more the frictional force between the short spring portion 24b and the tape T increases, and the short spring portion 24b may bite into the tape T. Then tape
Prevent T from going backwards. The shape of the tip of the short spring portion 24b is
In addition to the chevron shape of 9 and the notch shape of Fig. 13, it is possible to reduce the contact area with the tape by using the chevron shape or notch shape to increase the contact pressure and friction per unit area and prevent retrograde The effect becomes stronger. Also, instead of cutting out one leaf spring to form the long spring portion and the short spring portion, two leaf springs, long and short, formed separately as shown in FIG.
It may be a two-sheet structure in which 25 and 26 are stacked. Also, the figure
As shown in 15, two leaf springs 27 and 28 may be arranged separately on the upstream side and the downstream side. Further, the protruding portion with which the downstream leaf spring 27 is in contact may have a shape other than the rib described above, or may be a columnar protruding portion 29 as shown in the figure.

FIG. 16 shows another embodiment, in which the upper cover portion 6b is formed.
Two ribs 6c are arranged in series in the front and rear on the front ceiling surface, and the long spring portion 24a and the short spring portion 24b are elastically contacted with the ribs 6c, respectively, so that the tape is sandwiched between the two pairs of leaf springs and ribs. At the time of bundling work, as in FIG. 11, the long spring portion 24a and the short spring portion 24b are pushed down by the tensile tension of the tape T and the tape T is pulled out substantially linearly.
Unlike the previous embodiment in which the short spring portion 24b is elastically contacted with the rib 6c unlike the previous embodiment, the short spring portion 24b is deformed by a spring molding error or deformed by fatigue or external force. The initial angle of does not change, and the tape pull-out resistance is stable. Further, when the tape roll in the tape magazine rotates in the reverse direction and the tape is pulled backward as shown by the arrow, the short spring portion 24b hits the rib 6c and the bending angle is limited, so that the non-return effect is also stable. It is possible to prevent the short spring portion 24b from being largely bent and deformed when the tape is pulled backward more strongly, such as when the tape roll is replaced.

FIG. 17 shows still another embodiment. In addition to the configuration shown in FIG. 8, a stopper 3 made of sheet metal is attached to the short spring portion 24b.
1 is interposed. The stopper 31 is attached to the bottom plate portion 6a of the tape guide 6 so as to overlap the short spring portion 24b and covers the short spring portion 24b from the base portion to the middle portion, and the stopper 31 bends the short spring portion 24b at a bending angle. 16 is effective in stabilizing the pull-out resistance of the tape and the non-return effect and preventing the short spring portion 24b from being deformed, as in the example of FIG.

The present invention is not limited to the above-described embodiments, but various modifications can be made within the technical scope of the present invention, and it goes without saying that the present invention extends to those modifications. is there.

[0022]

As described above, in the tape guide device of the horticultural binding machine of the present invention, when the force of pulling back the tape to the tape roll side is applied, the leaf spring adds strong frictional resistance to the tape and moves backward. Since the tape roll in the tape magazine does not reversely rotate due to vibration or the like and the leading end of the tape is not pulled back, the risk of failure in binding is eliminated.

[Brief description of drawings]

FIG. 1 is a side sectional view of a horticultural binding machine, showing an embodiment of the present invention.

FIG. 2 is a side sectional view showing an operation process of the horticultural binding machine.

FIG. 3 is a side sectional view showing an operation process of the horticultural binding machine.

FIG. 4 is a side sectional view showing an operation process of the horticultural binding machine.

FIG. 5 is a side sectional view showing an operation process of the horticultural binding machine.

FIG. 6 is a side sectional view showing an operation process of the horticultural binding machine.

FIG. 7 is a side sectional view showing an operation process of the horticultural binding machine.

FIG. 8 is a front side sectional view of the driver handle.

FIG. 9 shows a leaf spring, (a) is a plan view and (b) is a side view.

FIG. 10 is a front side sectional view of the driver handle.

FIG. 11 is a front side sectional view of the driver handle.

FIG. 12 is a front side sectional view of the driver handle.

FIG. 13 shows a leaf spring, (a) is a plan view, and (b) is a side view.

FIG. 14 shows a leaf spring, (a) is a plan view and (b) is a side view.

FIG. 15 is a cutaway view of the front of the driver handle.

FIG. 16 is a front side sectional view of a driver handle according to another embodiment.

FIG. 17 is a front side sectional view of the driver handle according to another embodiment.

[Explanation of symbols]

1 gardening binding machine 2 driver handle 3 clincher arm 4 Lower handle 6 Tape guide 6c rib 7 Staple magazine 10 cutter blade 11 driver 12 clincher 13 picking plate 15 Tape support plate 24 leaf spring 24a Long spring part 24b Short spring part T tape

Continued front page    (72) Inventor Hitoshi Matsumoto             6-6 Hakozakicho, Nihonbashi, Chuo-ku, Tokyo             Cos Co., Ltd. F term (reference) 2B023 AA02 AA03 AA05 AC03 BB03                       BB05                 3E052 AA41 AA50 BA01 CA18 CB05                       CB07 FA19 HA14 JA02 LA06

Claims (5)

[Claims] 1. A stapler-type horticultural binding machine in which a driver handle and a clincher arm are combined, wherein a tubular tape guide is provided on the driver handle, and a tape loaded in a tape magazine at a rear portion of the driver handle is taped. In a tape guide device of a binding machine for gardening configured to pass through the guide and to be pulled out from the tip of the tape guide, two leaf springs are arranged in series in front and back on the inner wall surface of the tape guide, and the tips of the two leaf springs are taped. A projecting portion is formed on the inner wall surface facing the leaf spring mounting portion while facing the downstream side of the path, and the leaf spring located on the downstream side is elastically contacted with the projecting portion to sandwich the tape between the leaf spring and the projecting portion, A tape guard for a horticultural binding machine, characterized in that the leaf spring on the upstream side is brought into contact with the tape to give pullback resistance to the tape to prevent the tape from moving backward. Id device. 2. The tape guide device for a horticultural binding machine according to claim 1, wherein a fixed stopper is provided between the base portion and the intermediate portion of the leaf spring on the upstream side to limit the swing angle of the leaf spring. 3. A stapler-type binding machine for gardening, comprising a combination of a driver handle and a clincher arm, wherein the driver handle is provided with a tubular tape guide, and the tape loaded in a tape magazine at the rear of the driver handle is taped. In a tape guide device of a binding machine for gardening configured to pass through the guide and to be pulled out from the tip of the tape guide, two leaf springs are arranged in series in front and back on the inner wall surface of the tape guide, and the tips of the two leaf springs are taped. Two protrusions are arranged in series in the front and rear direction on the inner wall surface facing the downstream side of the path and facing the leaf spring mounting portion, and the two leaf springs are elastically contacted with the respective protrusions to project two pairs of leaf springs. A tape guide device for a horticultural binding machine, characterized in that the tape is sandwiched by a section and a pullback resistance is applied to the tape to prevent the tape from going backward. 4. The horticultural plant according to claim 1, 2 or 3, wherein the two leaf springs are leaf springs in which two leaf springs, long and short, are integrally formed by processing a U-shaped cut into one leaf spring. Tape guide device for binding machine. 5. The tape guide device for a horticultural binding machine according to claim 1, 2, 3 or 4, wherein the tip of the leaf spring on the upstream side has a mountain shape or a notch shape.