JP3663526B2 - Continuous collection pot for raising seedlings and its transplanter - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a continuous collecting pot for transplanting seedlings in which individual pot bodies connected by connecting pieces are assembled, and a grounding type transplanter for continuously planting seedlings grown in the individual pot bodies of the continuous collecting pot together with the individual pot bodies. About.
[0002]
[Prior art]
Conventionally, as this kind of continuous collection pot for raising seedlings, there is no continuous pot by connecting square or hexagonal cylindrical individual pots with connecting pieces formed by developing a thin film such as paper or paper. There is one in which the individual bowls are assembled by laminating the continuous bowls and pasting each other with a water-soluble adhesive (for example, see Japanese Patent Publication No. 4-79612). In such a continuous collection pot, it is possible to grow a large number of seedlings intensively by cultivating and seeding in individual pot bodies, and the water-soluble adhesive degenerates by irrigation at the time of raising seedlings. When one end of the pot is pulled, the superposed continuous pots are separated from each other and pulled out in a row, enabling efficient transplantation.
[0003]
On the other hand, recently, a ground-type transplanting machine has been developed and used for pulling continuous pots from the continuous collection pots for transplanting seedlings in a row and continuously feeding them into the planting grooves as they are for planting (for example, special applications). (See Kaihei 5-308822). This is a potted seedling in which a potted seedling placement part for placing the above-mentioned continuous collection pot for raising seedlings transplanted on a sled-like body and a continuous pot drawn from this potted seedling placement part are aligned and guided. A guide part and a potted seedling feeding part that feeds continuous pots from the potted seedling guide part to the planting surface are provided continuously, and an opener is provided under the machine body. Simply sliding the machine on the field surface The seedlings are continuously drawn out together with the individual pots in the planting groove formed by the opener, and simple transplantation thereof becomes possible.
[0004]
However, according to the above-mentioned continuous collecting pot for transplanting seedlings, the length of the connecting piece should be equal to the width of one side surface of the individual pot body for the convenience of overlapping the continuous pots and gathering the individual pot bodies densely. For this reason, when trying to plant potted seedlings continuously using the above transplanter, the pitch between the strains is limited by the connecting piece, and depending on the type of planted crop, the pitch between the strains is too narrow and its use In some cases, I had to give up.
[0005]
Therefore, in Japanese Patent Laid-Open No. 7-123869, as shown in FIGS. 11 and 12, a plurality of cuts are made in the side wall of the individual pot body 2 constituting the continuous pot 1 or the connecting piece 3 connecting the individual pot bodies 2. It is proposed to extend the arrangement pitch of the individual pots 2 by several times by inserting 4 and pulling the adjacent individual pots 2 to each other to extend the elongated pieces 5 formed by the notches 4. ing.
[0006]
Therefore, such continuous pots 1 are overlapped with a water-soluble adhesive to form a continuous collecting pot 6 as shown in FIG. 13, which is a potted seedling placement portion on the body 11 of the ground-type transplanter 10. 12 and pulling out one end of the continuous bowl 1, the above-mentioned elongated piece 5 is elongated, the length of the connecting piece 3 is substantially extended, and transplantation of crops requiring a large inter-strain pitch is also possible. Become. In FIG. 13, 13 is a potted seedling guide portion formed by a pair of guide plates 14, 15 is a potted seedling feeding portion formed by cutting out the body 11, and 16 is provided on the lower surface (grounding surface) of the body 11. Each opener is represented, and the body 11 is fixed in a state in which the individual pot body 2 at one end of the continuous pot 1 drawn from the pot seedling placement unit 11 is fixed to a planting groove (not shown) formed by the opener 16. If it is made to slide in the direction of arrow F, the seedling 7 will be drawn out with the individual pot body 2 continuously.
[0007]
[Problems to be solved by the invention]
However, although the above-mentioned continuous collecting bowl 6 is easy to separate the continuous bowl 1 laminated by degeneration of the water-soluble adhesive, considerable separation resistance {as an example, 7.8 to 9.8 N (800 to 1000 gf Therefore, when the continuous pot 1 is pulled out from the continuous collecting pot 6 on the pot seedling placement part 12 of the transplanter 10, the plurality of notches 4 forming the elongated piece 5 are extended. Since there is no resistance to suppress the problem, it immediately stretches, and part of the stretched piece 5, particularly the connecting part 8 (FIG. 12) often breaks, making it impossible to perform continuous transplantation by the grounded transplanter 10. was there.
[0008]
The present invention has been made in order to solve the above-mentioned conventional problems. The purpose of the present invention is to provide a continuous collecting bowl that can prevent the elongation piece from breaking when the continuous bowl is pulled out. Another object of the present invention is to provide a grounding type transplanter having a function of extending the connecting piece securely and extending the connecting piece substantially.
[0009]
[Means for Solving the Problems]
A continuous collecting pot for transplanting seedlings according to the present invention comprises a square or hexagonal cylindrical individual pot body formed by developing a thin film such as paper or paper, and is formed as a continuous pot by connecting pieces, In a continuous assembly bowl in which continuous bowls are stacked and bonded together with a water-soluble adhesive to collect the individual bowl bodies, the connection pieces are attached to the side walls or the connection pieces of the individual bowl bodies. A plurality of cuts forming a substantially extending extension piece are inserted, and a connection piece that partially connects the extension piece to the individual bowl or the connecting piece is provided in the cut. Features.
[0010]
In the continuous collecting pot configured in this way, the tensile force required to break the connecting piece is set to be larger than the separation force of the continuous pot after raising seedlings, so that when the continuous pot is pulled out, the extension piece extends. The continuous bowl is surely separated prior to, and the elongation piece is prevented from breaking.
[0011]
In addition, the transplanting machine according to the present invention is a grounding method in which continuous pots are drawn in a row from the above-described continuous collecting pots for transplanting seedlings, and the seedlings that are continuously fed out to the planting surface and grown in the individual pots are planted together with the individual pots. In the mold transplanter, in the drawer passage of the continuous bowl, withdrawing means for holding the individual bowl body and pulling the continuous bowl at a predetermined speed, and accelerating the individual bowl body fed from the drawer means An accelerating means for breaking the connecting piece and extending the elongated piece is provided.
[0012]
In the transplanter configured as described above, the individual pot body that has passed through the drawing means is accelerated by the acceleration means, so that a large tensile force acts between the preceding individual pot body and the subsequent individual pot body, The connecting piece in the insert breaks and the elongated piece extends.
[0013]
In the above-described transplanter, the power source of the extraction means and the acceleration means is arbitrary, but a rolling wheel that is attached to the body of the transplanter as the power source and rolls on the field surface according to the sliding of the body is used. Is desirable. By using rolling wheels in this way, a special power source such as a motor becomes unnecessary, and the structure can be simplified and the weight can be reduced.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0015]
1 and 2 show a continuous pot 1 constituting a continuous collecting pot for transplanting seedlings according to the present invention. In addition, since the whole structure of this continuous bowl 1 is not different from what was shown in previous FIG. 11, let the same code | symbol be attached | subjected to the same part. In the present embodiment, in the notches 4 provided in the side wall of the individual pot body 2 or the connecting piece 3, a plurality of the extension pieces 5 are partially connected to the side wall or the connecting piece 3 of the individual pot body 2. Connecting piece 20 (20 ') is provided. The place where the connecting piece 20 is provided is on the front side (the side that extends first) than the portion corresponding to the connecting portion 8 (FIG. 12) when the extending piece 5 is extended, and the size of each connecting piece 20 Is a size having a breaking resistance (tear resistance) larger than the separation resistance {7.8 to 9.8 N (800 to 1000 gf)} of the continuous bowl 1 described above. In addition, the cut 4 is provided over the two-surface width of the individual pot body 2 here.
[0016]
Therefore, now, this continuous pot 1 is overlapped with a water-soluble adhesive to form a continuous collecting pot 6 as shown in FIG. 3, and after raising the seedling in the individual pot body 2, the continuous pot 1 is pulled out from one end. Since the connecting piece 20 provided in the notch 4 serves as a resistance for extending the elongated piece 5, the elongated piece 5 stays in the side wall of the individual bowl body 2 or the connecting piece 3 as it is, and the separation of the continuous bowl 1 precedes. Happens. In this case, the individual pots 2 are continuously drawn out at an arrangement pitch P with reference to the length L of the initial connection piece 3. When transplanted by the grounded transplanter 10, the connection piece It is necessary to break 20 along the way to extend the elongated piece 5.
[0017]
Therefore, in the present embodiment, as shown in FIG. 3 and FIG. 4, a potted seedling drawing and separating device 21 is installed on the body 11 of the same grounding type transplanter 10 as shown in FIG. Yes. This potted seedling drawing and separating apparatus 21 accelerates the drawing roller pair (drawing means) 22 for drawing out the continuous bowl 1 and the individual pot body 2 fed from the drawing roller pair 22 to connect pieces in the notch 4. 20 and the acceleration roller pair (acceleration means) 23 for extending the elongated piece 5, and the drawing roller pair 22 and the driving roller 24 for driving the acceleration roller pair 23. It is provided collectively in a box 25 installed between the potted seedling placement part 12 and the potted seedling guide part 13 on the body 11.
[0018]
The box 25 has a U-shaped cross section as shown in FIGS. 5 to 7 and is fixed on the body 11 with the U-shaped bottom plate 25a facing upward. The inside of the box 25 is divided into two upper and lower chambers a and b by an intermediate plate 26, the drawing roller pair 22 and the acceleration roller pair 23 are in the lower chamber b, and the driving means 24 is in the upper chamber a. Has been placed.
[0019]
More specifically, the drawing roller pair 22 is supported by the bottom plate portion 25a and the intermediate plate 26 of the box 25 so as to be rotatable via bearings 27a and 27b, and the lower ends of a pair of rotating shafts 28 and 29 extending in the vertical direction. It is attached to the part so as not to rotate. Similarly, the acceleration roller pair 23 is also supported by the bottom plate portion 25a and the intermediate plate 26 of the box 25 through the bearings 30a and 30b so as to be rotatable, and the lower ends of a pair of rotating shafts 31 and 32 extending in the vertical direction. It is attached to the part so as not to rotate.
[0020]
Each of the drawing roller pair 22 and the accelerating roller pair 23 has a left and right roller width set so as to be slightly smaller than the distance between the opposite sides of the individual bowl body 2, and the individual bowl body 2 can be sandwiched therebetween. ing. Further, the drawing roller pair 22 and the acceleration roller pair 23 are arranged at a pitch corresponding to the pitch P of the individual bowl body 2 in the continuous bowl 1 drawn out from the collecting bowl 6, whereby the subsequent individual bowl body 2 is arranged. The preceding individual bowl 2 is sandwiched between the acceleration roller pair 23 while being sandwiched between the draw roller pair 22. Each roller 33 constituting the drawing roller pair 22 and the accelerating roller pair 23 is composed of a core material 33a and an elastic body 33b such as rubber fitted thereto.
[0021]
On the other hand, the driving means 24 includes a pair of left and right rolling wheels 35 rotatably supported on the left and right side plate portions 26b of the box 25 via bearings 34, and one driving wheel 35 of the pair of rolling wheels. A bevel gear pair 36 that transmits the rotation of the rotary shaft 28 to one rotary shaft 28 that supports the drawing roller pair 22, and a gear pair 37 that transmits the rotation of one rotary shaft 28 to the other rotary shaft 29. The driving means 24 also includes a belt 40 wound around a pulley 38 fitted to the other rotary shaft 29 and a pulley 39 fitted to one rotary shaft 32 supporting the acceleration roller pair 23, and A gear pair 41 for transmitting the rotation of one rotary shaft 32 to the other rotary shaft 31 is provided.
[0022]
The diameter of the rolling wheel 35 is set to a size that slightly bites the field surface when the body 11 of the transplanter 10 is brought into contact with the field surface (GL). When sliding on the field surface, the rolling wheel 35 rolls on the field surface, and the rotation is transmitted to the pair of rotating shafts 28 and 29 for the drawing roller via the bevel gear pair 36 and the gear pair 37, This is transmitted to the pair of rotating shafts 31 and 32 for the acceleration roller via the pulleys 38 and 39 and the belt 40, whereby the drawing roller pair 22 and the acceleration roller pair 23 rotate in the same direction in synchronization. Thus, the diameter of the pulley 39 fitted to the rotation shaft 32 for the acceleration roller is set to be smaller than that of the pulley 38 fitted to the rotation shaft 29 for the drawing roller. The pair 23 rotates at a higher speed than the drawing roller pair 22. As a result, the preceding individual pot body 2 is transferred at a higher speed than the succeeding individual pot body 2, and a large tensile force is generated between the preceding individual pot body 2 and the subsequent individual pot 2. The connecting piece 20 in 4 is broken.
[0023]
That is, at the time of transplantation, the continuous pot 1 is drawn from the pot seedling placement part 11 in advance, and the connecting piece 20 in the cut 4 on the drawing end side is broken to make the elongated piece 5 elongated, The individual pot body 2 at one end of the pot 1 is fixed to a planting groove (not shown) formed by the opener 16. When the body 11 is slid in the direction of arrow F after this preparation is completed, the rolling wheel 35 rolls and the rotation is transmitted to the pulling roller pair 22 and the acceleration roller pair 23 in synchronization. The continuous pots 1 are pulled out in a row from the collecting pot 6 on the potted seedling placement unit 11 by the pulling roller pair 22, and at the same time, the individual pots 2 fed out from the pulling roller pair 22 are accelerated by the acceleration roller pair 23. Then, the connecting piece 20 in the notch 4 is broken and the elongated piece 5 is elongated, and the continuous bowl 1 is continuously fed from the feeding portion 15 in a state where the connecting piece 2 is substantially extended by the elongated piece 5. Then, the seedlings 7 are transplanted together with the individual pot bodies 2 in the planting grooves formed by the opener 16.
[0024]
When the continuous bowl 1 is drawn by the pair of draw rollers 22, the connection piece 20 in the cut 4 has a breaking resistance (tear resistance) larger than the separation resistance 7.8 to 9.8 N of the continuous bowl 1, Prior to breakage of the connecting piece 20, that is, extension of the elongated piece 5, the continuous bowl 1 in the continuous collecting bowl 6 is separated, and the individual bowl body 2 has a predetermined arrangement pitch P based on the length L of the connecting piece 3. Withdraw continuously. On the other hand, after the elongated piece 5 is extended by acceleration by the acceleration roller pair 23, a predetermined tensile force acts on the continuous bowl 1 according to the sliding of the body 11, and this tensile force is 0.9 to 1.5 N (100 to 150 gf). ) To the extent that the breaking resistance (tear resistance) of the elongated piece 5 is sufficiently smaller than 2.9 to 3.9 N (300 to 400 gf), and therefore the elongated piece 5 will not break during implantation. Here, when the notch 4 is provided over the two-surface width of the individual pot body 2 as in the above embodiment, the arrangement pitch of the individual pot bodies 2 after the extension pieces 5 are extended is the above-described reference. The array pitch P is slightly more than twice, and transplantation at a large inter-strain pitch becomes possible.
[0025]
8 and 9 show a second embodiment of the ground-type transplanter according to the present invention. The feature of the second embodiment is that the stems of the seedlings 7 grown in the individual pots 2 as the rollers 33 ′ of the acceleration roller pair (acceleration means) 23 constituting the potted seedling extraction and separation device 21. The thickness corresponding to the portion is set, and the width of the left and right rollers 33 'is set to be slightly smaller than the stem portion of the seedling 7. When comprised in this way, the stem part of the seedling 7 is pinched | interposed by the acceleration roller pair 23, and the preceding individual pot body 2 is accelerated rather than the subsequent individual pot body 2 similarly to the said 1st Embodiment. Similarly, the connecting piece 20 in the notch 4 can be broken. However, in this case, since the accelerated time width of the preceding individual pot 2 is shortened, only the connection piece 20 ′ on the connection piece 3 side (start side) shown in FIG. Try to provide it.
[0026]
FIG. 10 shows a third embodiment of the ground-type transplanter according to the present invention. The feature of the third embodiment resides in that a rotating belt pair 45 is used in place of the acceleration roller pair 23 as the acceleration means constituting the potted seedling extraction and separation device 21. The rotating belt pair 45 includes an endless belt 48 wound around a pair of driving wheels (pulleys) 46 disposed on the drawing roller pair 22 side and a pair of left and right driven wheels (pulleys) 47 disposed on the pot seedling feeding portion 15 side. And the width of the end of the endless belt 48 on the feeding side is set to a width that can hold the stem portion of the seedling 7 grown in the individual pot 2. By using such a pair of rotating belts 45, the stem portion of the seedling 7 in the preceding individual pot body 2 can be sandwiched and accelerated continuously, and as in the second embodiment, cutting is performed. It is no longer necessary to limit the connection piece 20 in the insert 4 to the connection piece 20 'on the coupling piece 3 side. In addition, the rotating belt pair 45 in the third embodiment is used in such a manner that the individual bowl body 2 is sandwiched as in the first embodiment by adjusting the left-right distance between the left and right endless belts 48. Can do.
[0027]
In each of the above-described embodiments, the roller pair 22 is used as the drawing means. However, the drawing means may be configured arbitrarily if the continuous bowl 1 can be drawn at a predetermined speed. For example, the third embodiment The rotating belt pair 45 can be shortened, or a claw member (pusher) driven by a chain or belt can be used. Further, the acceleration roller pair 23 and the rotating belt pair 45 as acceleration means can be replaced with the pushers described above.
Furthermore, in each of the above embodiments, the potted seedling extraction and separation device 21 is configured to use the rolling wheel 35 as a power source, but when the grounding type transplanter 10 is towed to a walking tractor, for example, The power of the walking tractor can be used as the power source.
[0028]
【The invention's effect】
As described above in detail, according to the continuous collecting bowl according to the present invention, when the continuous bowl is pulled out, the connection piece provided in the notch suppresses the extension of the extension piece, so that the extension by the pulling output of the continuous bowl. The piece will not break.
Moreover, according to the transplanter which concerns on this invention, the connection piece in a notch can be fractured | ruptured reliably in the middle of drawing-out of a continuous bowl, and an expansion | extension piece can be expanded, and it can respond easily to the change of a pitch between strains.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a structure of a continuous bowl for a continuous collecting bowl according to the present invention.
FIG. 2 is an enlarged perspective view showing a part of FIG.
FIG. 3 is a plan view showing the overall structure of a grounded transplanter according to the present invention.
4 is a schematic view showing an operation state of the potted seedling extraction and separation device in the transplanter shown in FIG. 3. FIG.
5 is a plan view showing a part of the structure of the potted seedling drawing and separating device in the transplanter shown in FIG.
6 is a cross-sectional view taken along the line AA in FIG.
7 is a cross-sectional view taken along the line BB of FIG.
FIG. 8 is a schematic view showing another structure and operating state of the potted seedling extraction and separation device in the transplanter.
9 is a front view schematically showing the shape and usage of an accelerating roller pair that constitutes the potted seed drawing and separating apparatus shown in FIG. 8. FIG.
FIG. 10 is a schematic diagram showing still another structure and operating state of the potted seedling drawing and separating apparatus in the transplanter.
FIG. 11 is a perspective view showing the structure of a conventional continuous bowl for a continuous collecting bowl.
FIG. 12 is a perspective view showing an extended state of a conventional continuous bowl for a continuous collecting bowl.
FIG. 13 is a plan view showing the structure and usage of a conventional ground-type transplanter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Continuous bowl 2 Individual pot body 3 Connection piece 4 Cutting 5 Elongation piece 6 Continuous gathering pot 10 Ground type transplanter 11 Body 14 Potted seedling guide part 15 Potted seedling feeding part 20 Connection piece 21 Potted seedling extraction and separation apparatus 22 Pull-out roller Pair 23 Acceleration roller pair (acceleration means)
24 Driving means 35 Rolling wheels 45 Rotating belt pair (acceleration means)

Claims (3)

Square or hexagonal cylindrical individual bowls formed by developing a thin film such as paper or paper are connected with connecting pieces to form continuous bowls, and the continuous bowls are overlapped to form a water-soluble solution between them. In a continuous assembling pot for transplanting seedlings, which is adhered with an adhesive, and the individual pot bodies are assembled, an elongated piece that substantially extends the connecting piece is formed on the side wall of the individual pot body or the connecting piece. A continuous collecting pot for transplanting seedlings, characterized in that a plurality of cuts are made and a connection piece for partially connecting the elongated piece to the individual pot or the connecting piece is provided in the cut. In the grounding type transplanting machine in which the continuous pots are drawn out in a row from the continuous collecting pot for raising seedling transplanted according to claim 1, and the seedlings that are continuously fed to the planting surface and grown in the individual pot body are planted together with the individual pot bodies, In the drawer passage of the continuous bowl, the individual bowl body is sandwiched to pull out the continuous bowl at a predetermined speed, and the individual bowl body fed from the drawer means is accelerated to break the connection piece in the cut. And an accelerating means for extending the elongated piece. The grounding type according to claim 2, wherein a driving wheel attached to the body of the transplanter and rolling on the field surface according to the sliding of the body is used as a power source for the drawing means and the accelerating means. Transplanter.

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