KR102717151B1 - Binding machine for gardening - Google Patents

Abstract

The present invention discloses a horticultural tie-down machine. Specifically, the horticultural tie-down machine includes a main body frame, a tape guide attached to a lower surface of the main body frame and having a tape tube at one end, an arm rotatably coupled to the main body frame and having a handle formed at one end, and a head coupled to the other end of the arm and contacting a front end of the main body frame to capture, extract, bind, and cut a tape supplied through the tape guide, wherein the head includes: a head case rotatably coupled to the other end of the arm; a capture and withdrawal means including a hook lever rotatably provided inside the head case, an attachment formed at an end, and an elastic force applied in a forward rotational direction; a tie means fixed inside the head case to bind a tape; It is characterized in that it comprises a cutting means fixed to the inside of the head case and cutting the tape; when the arm is tightened and then spread, the hook lever rotates forward by elastic rotational force and can capture and withdraw the tape supplied and exposed along the tape guide, and when the arm is tightened and then spread again, the hook lever rotates in the reverse direction and can bind and cut the tape introduced between the end of the head and the main body frame.

Description

{Binding machine for gardening}

The present invention relates to a horticultural tie-down device for tying stems and branches to supports and ropes so that horticultural or agricultural crops can grow properly, and more particularly, to a horticultural tie-down device capable of capturing and pulling out a tape, tying both ends together, and then cutting the tape.

In general, to prevent horticultural crops such as cucumbers, grapes, melons, and tomatoes, or vine crops from breaking or even sinking to the ground due to the weight of branches and fruit or wind and rain as they grow from young seedlings, stakes are erected at appropriate intervals, and then trapping ropes are installed to secure the stems and branches of the crops by tying them to the stakes and trapping ropes.

In other words, if horticultural crops or vine crops that grow with thin and long stems and branches are left as is, the stems and branches may break due to the weight of the branches and fruit or due to wind and rain, and they may sink to the ground and not grow properly. Therefore, it is necessary to tie the stems and branches to stakes and ropes to secure the crops so that they grow straight.

For this type of fixation, horticultural tie-down devices are disclosed in several patent documents as follows.

In most horticultural tie-down machines, the worker holds the tape guide and handle, presses the handle, and tightens the arm once, so that the end of the tape coming out of the tape guide from the tape container is caught by the hook lever and the pressure lever of the head installed on the arm, and in this state, when the tape guide and arm are spread apart, the tape is caught by the hook lever and the pressure lever and pulled out, and the worker wraps the tape around the branch of the crop and the support or the pulling line, and when the worker presses the tape guide and handle with a stronger force than before to tighten the arm, both ends of the tape wrapped around the branch of the crop and the support or the pulling line are tied by the iron needle of the stapler and at the same time cut by the cutter blade installed on the handle frame.

The important thing is the structure of the head installed at the end of the arm. The head of the horticultural tie-down device disclosed in the patent document 3 below is implemented by including: a case composed of an upper case and a lower case; a hook lever that is built-in to the case and has a tension spring fitted therein to rotate; a cam plate that is built-in to the case and has a cam groove formed therein; a first guide that is built-in to the case and has a catch formed into which the cam groove and the spring are fitted; a second guide that is built-in to the case and has a catch formed into which the cam groove and the spring are fitted; a support that is built-in to the case; a rotation lever that is built-in to the case and rotates by the operation of the first guide and the second guide; and a push lever that is built-in to the case and enters and exits the case by the operation of the rotation lever.

However, due to the complex structure and configuration, there were cases where the hook that captures the tape became loose and the tape was not captured properly.

Republic of Korea Patent No. 10-0779500 Republic of Korea Patent No. 10-1027960 Republic of Korea Patent No. 10-0990852

Accordingly, the present invention has been developed to solve the above-mentioned conventional problems, and the purpose of the present invention is to provide a horticultural tying machine having a simple structure and smooth operations for capturing and withdrawing, binding and cutting of tape.

Another object of the present invention is to provide a horticultural tie-down device having a hook lever having a structure that firmly captures the tape and prevents it from detaching or falling off from the tape.

In order to achieve the above object, the present invention provides a horticultural tie-down device comprising: a main body frame; a tape guide attached to a lower surface of the main body frame and having a tape tube at one end; an arm rotatably coupled to the main body frame and having a handle formed at one end; and a head coupled to the other end of the arm and contacting a front end of the main body frame to capture, extract, bind, and cut a tape supplied through the tape guide, wherein the head comprises: a head case rotatably coupled to the other end of the arm; a capture and withdrawal means including a hook lever rotatably provided inside the head case, an attachment formed at an end, and an elastic force applied in a forward rotational direction; a tie means fixed inside the head case to bind a tape; It comprises a cutting means fixed to the inside of the head case and cutting the tape; When the arm is tightened and then spread, the hook lever rotates forward by elastic rotational force and can capture and then withdraw the tape supplied and exposed along the tape guide, and when the arm is tightened and then spread again, the hook lever rotates in the reverse direction and the tape introduced between the head and the end of the main body frame can be bound and cut.

Here, the capture and withdrawal means comprises: a cam member which is provided to be able to ascend and descend inside the head case, has a cam groove formed along a pentagonal path on one side thereof, and has a cam shaft formed on the other side thereof; a compression spring which is provided between the upper end of the head case and the cam member; a cam rod which is provided to be able to rotate inside the head case at the upper end thereof, and has a cam projection formed at the lower end thereof that is inserted into the cam groove and moves along the path of the cam groove, thereby swinging left and right; A hook lever is formed so as to be rotatably provided inside the head case, and has a cam hole formed in the upper part in a hollow shape into which the camshaft is inserted; and when the cam member is pressed by the end of the main body frame, the cam projection caught on the lower side of the cam hole is released, and the cam member descends by the elastic force of the compression spring, and the hook lever caught on the camshaft rotates forward to capture and withdraw the tape, and when the cam member is pressed again by the main body frame and rises, the hook lever caught on the camshaft rotates in the reverse direction to release the tape capture.

At this time, the cam home is formed by connecting the first cam home, the second cam home, the third cam home, the fourth cam home, and the fifth cam home in a straight line to form a pentagonal shape, and a V-shaped mounting groove is formed on the upper side of the third cam home located at the lowest side so that the cam projection can be mounted and fixed, and a triangular mountain-shaped step is formed on the lower side so that the descending cam projection can be guided to the mounting groove.

And it is preferable that the top of the step is deviated to one side from the top of the fixing groove.

Meanwhile, it is preferable that the cam hole be formed in a shape in which two long holes overlap each other at a certain angle.

According to the present invention described above, the structure of the head is much simpler than in the past, so that manufacturing is easy, cost is reduced, and there are almost no malfunctions.

And the hook lever operates smoothly and the tape is caught securely.

Figure 1 is a perspective view showing the appearance of a horticultural tie-down device according to one embodiment of the present invention.
Figure 2 is a cross-sectional view of the present invention shown in Figure 1.
Figure 3 is a perspective view of the front end of the main body frame of the present invention shown in Figure 1.
Figure 4 is a perspective view showing one side of the inside of the head of the present invention illustrated in Figure 1.
Figure 5 is a perspective view showing the other side of the inside of the head of the present invention illustrated in Figure 1.
Fig. 6 is a perspective view showing the cam member of the present invention illustrated in Fig. 4.
Figure 7 is a state diagram showing the initial state of the present invention.
Figure 8 is a state diagram showing the operating state of the present invention.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the attached drawings.

For reference, the description with reference to the drawings is intended to facilitate a better understanding of the present invention, and the scope of the present invention is not limited thereby. In addition, when describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, a detailed description will be omitted.

FIG. 1 is a perspective view showing the appearance of a horticultural tie-down device according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view of the present invention shown in FIG. 1.

The horticultural tie device according to the present invention is a device that can tie stems and branches to supports or ropes to ensure proper growth of horticultural crops or agricultural crops, and can be largely configured to include a main body frame (100), a tape guide (200), an arm (300), and a head (400), as illustrated.

First, the main body frame (100), tape guide (200), and arm (300) will be described with reference to Fig. 3. Fig. 3 is a front end perspective view of the main body frame of the present invention illustrated in Fig. 1.

The above main body frame (100) constitutes the main body of the present invention and is formed in a hollow beam shape.

Specifically, the main body frame (100) may have an open upper surface and a cross-section in the shape of ' ┗┛ ' or may have a closed shape with a cross-section in the shape of '□'.

Inside the above main body frame (100), iron pins for binding the tape (T) along the longitudinal direction may be arranged.

Or, if the method is to heat-fuse the tape to bond it, the circuit and wires that supply the current can be installed internally.

This binding method can be determined according to the type of binding means (470) described later, and since it is well known, a detailed description is omitted.

And, at the front end of the main body frame (100), a rectangular holder body (110) is formed with an open upper surface to form a working space in which the tape (T) can be supplied, captured, withdrawn, tied, and cut while in contact with the head (400).

Inside the holder body (110), a binding support (120) may be provided to bind the tape (T) in conjunction with a binding means (470) installed inside the head (400).

In addition, a cutter (130) capable of cutting a tape (T) may be provided inside the holder body (110) in conjunction with a cutting means (480) installed inside the head (400).

In addition, a '∪'-shaped slit (111) is formed on the front of the holder body (110) so that the attachment of the hook lever (460) described later can pass through.

Meanwhile, a gap is formed between the holder body (110) and the shear wall (140) of the main body frame (100), so that the tape (T) supplied from the tape guide (200) described later can be exposed.

What is important is that a pressing member (141) that protrudes upward and can pressurize a cam member (430) of a head (400) described later is formed on the shear wall (140) of the main body frame (100).

Next, the tape guide (200) is attached to the lower surface of the main body frame (100).

The above tape guide (200) is also formed as a hollow shape with an empty interior and is provided with a tape container (210) in which a tape reel is stored at one end.

At this time, the tape (T) released from the tape reel can be freely pulled out through the gap between the holder body (110) and the shear wall (140) of the main body frame while being guided along the tape guide (200).

Next, the above-mentioned arm (300) is rotatably connected to the middle of the main body frame (100).

As shown, the above cancer (300) is roughly shaped like '┗┓'. It is made of a shape and is connected to the main body frame (100) with a rotating pin (310) to operate like scissors.

And, a handle (320) is formed at one end of the above-mentioned arm (300) so that it can be grasped by hand.

The above handle (320) may have an appropriate shape so that the four fingers excluding the thumb can be placed on it.

For reference, it is preferable that a restoration torsion spring (not shown) be mounted on the pivot pin (310) to provide elastic rotational force to maintain the arm (300) in the opened state. Accordingly, when a worker holds the handle (320) and applies force to tighten the arm, the arm (300) is compressed, and when the tightening force is removed, the arm (300) is opened by the restoration torsion spring.

Next, the head, which is a core component of the present invention, will be described in detail.

The above head (400) may be configured to have a structure in which a capture and extraction means (420), a binding means (470), and a cutting means (480) are installed inside a head case (410) that is rotatably coupled to an end of the arm (300).

First, the head case (410) can be rotatably coupled to the end of the arm (300) inside.

The above head case (410) may be composed of a front plate (411), a rear plate (412), a top plate (413), and both side plates (414) and may have a rectangular hexahedron shape with an open bottom.

The capture and withdrawal means (420) installed inside the head case (410) is configured to capture and withdraw a tape (T), and can be implemented by including a cam member (430), a compression spring (440), a cam rod (450), and a hook lever (460).

The above cam member (430) may be formed in a rectangular flat plate or block shape with a constant thickness as illustrated, and is provided so as to be able to rise and fall inside the head case (410).

A cam groove (431) is formed on one side of the cam member (430) and a cam shaft (432) is formed on the other side.

Here, the cam home (431) may be a concave, finely engraved negative shape and may have a structure that forms a roughly pentagonal closed path.

To this end, the cam home (431) may be formed by connecting the first cam home (4311), the second cam home (4312), the third cam home (4313), the fourth cam home (4314), and the fifth cam home (4315) in a straight shape to form a pentagonal shape.

At this time, a settling groove (4313a) and a triangular step (4313b) are formed on the upper and lower sides of the third cam groove (4313) located at the lowest side, respectively. The settling groove (4313a) is a groove formed in a 'V' shape in the center of the upper wall of the third cam groove (4313), and the triangular step (4313b) is formed in a protruding shape like a triangular mountain or '∧' in the center of the lower wall of the third cam groove (4313).

Accordingly, the cam projection (451) of the cam rod (450) introduced into the cam home (431) is guided not to move horizontally in the third cam home (4313), but rather to pass through a path between the triangular protrusion (4313b) and the anchoring groove (4313a).

What is important is that the apex of the anchoring groove (4313a) and the apex of the triangular step (4313b) may be formed at the same position in the exact center of the cam home (431), but it is preferable that they are formed at an offset from each other. That is, it is preferable that the apex of the triangular step (4313b) is positioned so as to be offset to one side from the apex of the anchoring groove (4313a).

This is because the cam protrusion (451) must continuously rotate along a one-way path of the cam home (431) without a separate device, while maintaining a temporarily stopped state in the third cam home (4313). This will be described in detail in the description of the operating process described below.

For reference, the above triangular protrusion (4313b) may have an asymmetrical shape in which one side has a relatively steep slope and the other side has a relatively gentle slope.

Meanwhile, the camshaft (432) is formed protruding on the opposite side of the cam home (431).

In addition, the lower end of the cam member (430) is extended by a certain length and a pushing block (433) is formed so that it can be pressed by the pressurizing member (141).

The above cam member (430) is elastically supported downward by the compression spring (440).

For this purpose, a pair of compression springs (440) are provided spaced apart between the upper part of the cam member (430) and the inner upper part of the head case (410).

Accordingly, when the cam member (430) is pressed upward, the compression spring (440) is compressed and the cam member (430) rises, but when the pressing force is removed, the compression spring (440) expands and the cam member (430) can be lowered strongly by elastic force.

The cam rod (450) is rotatably installed on the upper side of the cam member (430).

The above cam rod (450) may be in the shape of a bar or rod, and the upper end may be hinged between the compression springs (440) to swing left and right like a pendulum.

A cam projection (451) is formed protruding at the bottom of the cam rod (450). At this time, the cam projection (451) can move along the path of the cam home (431) while being inserted into the cam home (431).

That is, when the cam projection (451) continues to move along the one-way closed path of the cam home (431) as the cam member (430) rises and falls, the cam rod (450) eventually swings left and right.

The above hook lever (460) is provided parallel to the position where the cam shaft (432) of the cam member (430) is formed, and is made of a flat plate having a roughly hook shape.

One side of the above hook lever (460) is rotatably hinged within the head case (410). That is, a hinge pin (463) penetrates and is fixed to the side plate of the head case (410), and the hook lever (460) can be rotatably operated by the hinge pin (463).

A pointed attachment (461) is formed at the other end of the hook lever (460). In addition, a cam hole (462) is formed in the middle of the hook lever (460) through which the cam shaft (432) passes and is inserted.

The above cam hole (462) may be in the shape of a hole or, as shown, may be in the shape of a heart in which two holes overlap each other to form a certain angle.

To explain in more detail, the cam hole (462) may have a shape in which a first hole (462a) formed in the direction of the attachment (461) and a second hole (462b) formed in the direction of the hinge pin (463) overlap at a right angle.

Accordingly, the hook lever (460) can rotate around the hinge pin (463), but since the cam shaft (432) inserted into the cam hole (462) applies a downward force by the compression spring (440), the hook lever (460) receives an elastic force in the forward rotation direction.

Next, the above-mentioned binding means (470) and cutting means (480) will be described.

The above-mentioned bonding means (470) is a means for covering the tapes (T) with each other after capturing and withdrawing the tapes (T) and then joining one end to the other.

At this time, the bonding means (470) may be any method capable of joining two tapes (T).

For example, the above-mentioned bonding means (470) may be bonded by heat fusion or by using an iron pin.

The thermal bonding method uses a heat wire to melt a portion of a tape (T) made of synthetic resin material, and the tapes (T) are bonded to each other by the bonding force of the resin generated in the melted portion.

The method of joining by staples uses the principle of staples to sequentially supply staples one by one to bind the tapes together.

The above-mentioned binding means (470) comes into contact with the binding support (120) fixed inside the holder body (110) and binds the tape (T) introduced therebetween.

Since these methods are well known, a detailed description is omitted.

The above cutting means (480) is a means for cutting the tape (T) that has been bound at the same time as it is bound, and the cutting means (480) may be used in various ways.

For example, as illustrated, a tape (T) placed on a cutter (130) installed vertically inside the holder body (110) can be cut by pressing the cutting means (480) as it descends.

What is important is that a capture hole (481) is formed on the front of the cutting means (480) so that the attachment (461) can penetrate and enter.

Since the above cutting means (480) is also known, a detailed description is omitted.

Hereinafter, the operation process of the present invention will be described with reference to FIGS. 7 and 8. FIG. 7 is an initial state diagram showing the initial state of the present invention, in which FIG. 7a is a state diagram showing the initial state of the hook lever, and FIG. 7b is a state diagram showing the initial states of the cam member and the cam rod. In addition, FIG. 8 is an operating state diagram showing the operating state of the present invention, in which FIG. 8a is an operating state diagram showing the hook lever, and FIG. 8b is an operating state diagram showing the cam member.

First, let's describe the initial state.

The initial state is that the hook lever (460) is rotated in the reverse direction (clockwise in the drawing) as shown in Fig. 7a. That is, at this time, the attachment (461) is lifted and does not capture the tape (T).

In this state, as shown in Fig. 7b, the cam member (430) rises and the cam projection (451) remains seated in the seating groove, so the cam member (430) does not descend. This is possible because the compression spring (440) presses the cam member (430) with elastic force, so the cam projection (451) does not come off the seating groove (4313a).

Accordingly, since the cam member (430) is maintained in a raised state, the hook lever (460) hooked to the cam shaft (432) of the cam member (430) is maintained in a raised state.

Next, the capturing process is explained.

In the initial state described above, the worker holds the handle (320) and the main body frame (100) and presses the handle (320) to tighten the arm (300), so that the head (400) comes into contact with the holder body (110) of the main body frame (100).

At this time, as shown in Fig. 7a, the pressing member (141) of the main body frame (100) presses the pushing block (433), and as a result, the compression spring (440) is slightly compressed and the cam member (430) rises slightly, causing the cam projection (451) to detach from the settling groove (4313a) and move in contact with the gentle slope of the triangular protrusion (4313b) and then enter the fourth cam groove (4314).

In this state, when the worker removes the force that was tightening the arm (300), the arm (300) opens and the pressurizing member (141) that was pushing the pushing block (433) is removed, and as shown in FIG. 8a, the compression spring (440) expands and the cam member (430) strongly descends, and the cam projection (451) that was entering the fourth cam groove (4314) passes through the fifth cam groove (4315) and is fixed by settling at the vertex where the first cam groove (4311) and the fifth cam groove (4315) meet.

And, due to the strong lowering of the cam member (430), the hook lever (460) that was caught on the cam shaft (432) also rotates strongly in the forward direction, and as shown in Fig. 8b, the exposed tape (T) is strongly struck by the attachment (461) to make a hole and capture it. At this time, the attachment (461) enters while penetrating the capture hole (481) and captures the tape (T).

At the same time, as the above-mentioned cancer (300) opens, the hook lever (460) that captures the above-mentioned tape (T) bites and pulls out the tape (T).

What is important is that in the present invention, since the cam hole () has a shape in which the first long hole (462a) and the second long hole (462b) overlap at a right angle, the cam shaft (432) is located at the lowest end of the first long hole (462a) in the captured state.

At this time, by designing the outer diameter of the camshaft (432) and the width of the first hole (462a) to be almost the same, the camshaft (432) can be inserted into the first hole (462a) without any play, so that the hook lever (460) does not shake or vibrate left and right while capturing the tape.

Therefore, the capture state is firmly maintained, and the problem of the tape being pulled off or torn from the attachment is solved.

In this state of capture, the worker pushes the withdrawn tape (T) toward the trunk or branch and the support or line to wrap it around the tape (T) in preparation for tying and cutting.

Next, the binding and cutting process is explained.

When the worker presses the above arm (300) to tighten it again, the pressurizing member (141) presses the pushing block (433) again, and as the compression spring (440) is compressed, the pressurized cam member (430) rises, and the cam projection (451) passes through the first cam home (4311), the second cam home (4312), and enters the third cam home (4313).

The cam projection (451) that has entered the third cam home (4313) is settled on the valley portion (lowest point) located on the steep slope side of the triangular step (4313b). At the same time, the hook lever (460) also rotates in reverse to release the tape capture state.

At this time, the binding means (470) binds two layers of tape placed on the upper surface of the binding support (120), and at the same time, the cutting means (480) cuts two layers of tape located on the cutter (130).

However, even if the force that was tightening the above-mentioned rock (300) is removed and it is opened again, the cam member (430) does not descend any further. This is because, the moment the cam projection (451) is separated from one side of the triangular protrusion (4313b), it slides while contacting the slope of the anchoring groove (4313a) and is settled and fixed inside the anchoring groove (4313a), so the cam member (430) stops in a state where it has been raised by the cam rod (450). In other words, it becomes the initial state as in Fig. 7b again.

In addition, since the camshaft (432) moves up and down vertically and the hook lever (460) rotates, the camshaft (432) and the cam hole (462) may collide with each other, but in the present invention, the cam hole (462) is not a simple long hole shape but has a structure in which the second long hole (462b) is formed, so that a clearance is provided for the camshaft to enter the second long hole (462b), and thus the cam member (430) can be raised and lowered very smoothly.

Although representative embodiments of the present invention have been described above with reference to the drawings, those skilled in the art will be able to make various applications and modifications within the scope of the present invention based on the above contents. Therefore, the scope of the rights of the present invention should not be limited to the described embodiments, but should be determined not only by the claims described below but also by equivalents of the claims.

100 : Body Frame
110 : Holder 111 : Slit
120 : Binding support 130 : Cutter
140: Shear wall 141: Pressurized member
200 : Tape Guide 210 : Tape Can
300 : Cancer
310 : Rotating pin 320 : Handle
400 : Head
410 : Head case 411 : Front plate
412 : Back plate 413 : Top plate
414 : Side plate
420: Capture and Withdrawal Method
430: Cam Absence 431: Cam Home
4311: 1st Camp Home 4312: 2nd Camp Home
4313: 3rd Camp Home 4313a: Anchakgol
4313b: Triangular chin 4314: 4th cam home
4315: 5th cam home 432: Camshaft
433: Pushing block 440: Compression spring
450 : Cam rod 451 : Cam bump
460 : Hook lever 461 : Attachment
462: Cam hole 462a: First hole
462b: 2nd section 463: Hinge pin
470 : Means of binding
480: Cutting means 481: Capturing hole
T: Tape

Claims (5)

A horticultural tie-down device comprising a main body frame, a tape guide attached to the lower surface of the main body frame and having a tape can at one end, an arm rotatably connected to the main body frame and having a handle formed at one end, and a head connected to the other end of the arm and contacting the front end of the main body frame to capture, extract, tie and cut a tape supplied through the tape guide,
The above head comprises a head case rotatably connected to the other end of the arm;
The cam member is provided so as to be able to ascend and descend inside the head case, and has a cam groove formed along a pentagonal path on one side thereof and a camshaft formed on the other side thereof; a compression spring provided between the upper end of the head case and the cam member; a cam rod having a rotatably provided upper end inside the head case and a cam projection formed at a lower end thereof to be inserted into the cam groove and move along the path of the cam groove so as to swing left and right; and a hook lever having a rotatably provided upper end and an attachment formed at a lower end thereof and a cam hole formed in a long hole shape at the upper end into which the camshaft is inserted, and to which elastic force is applied in a forward rotation direction. When the cam member is pressed by the end of the main body frame, the cam projection caught on the lower side of the cam hole is released, and the cam member descends by the elastic force of the compression spring, and the hook lever caught on the camshaft rotates forward to capture and withdraw a tape, and when the cam member is pressed again by the main body frame and rises, the hook lever caught on the camshaft rotates in the reverse direction to release the tape capture. Capture and withdrawal means;
A fastening means fixed to the inside of the above head case to fasten the tape;
A horticultural tie-down device comprising: a cutting means fixed to the inside of the head case and configured to cut the tape; wherein when the arm is tightened and then spread, the hook lever rotates forward by elastic rotational force to capture and withdraw the tape supplied and exposed along the tape guide, and when the arm is tightened and then spread again, the hook lever rotates in the reverse direction to bind and cut the tape introduced between the head and the end of the main body frame.
delete In the first paragraph, the cam groove is a horticultural tie-down device characterized in that the first cam groove, the second cam groove, the third cam groove, the fourth cam groove, and the fifth cam groove are linear and are connected to each other to form a pentagonal shape, and a V-shaped mounting groove is formed on the upper side of the third cam groove located at the lowest side so that the cam projection can be mounted and fixed, and a triangular mountain-shaped step is formed on the lower side so that the descending cam projection can be guided to the mounting groove. In the third paragraph,
A horticultural tie-down device characterized in that the top of the step is deflected to one side from the top of the fixing groove. A horticultural tie-down device according to claim 1, characterized in that the cam hole is formed by two holes overlapping each other at a certain angle.