JP3536158B2 - Nursery bed forming device and transplanting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seed bed forming apparatus for planting transplanted plants such as seed balls and seedlings, and a transplanting apparatus for transplanting the transplanted plants to a seed bed.

[0002]

2. Description of the Related Art Conventionally, a nursery bed forming apparatus for forming a nursery bed for planting a plant to be transplanted such as a seed ball is provided with a groove cutting tool composed of a chisel for plunging into the cultivated soil. The planting groove is formed by the groove cutting tool.

Further, a transplanting device for planting transplanted plant bodies such as seed balls and seedlings in a planting groove of a nursery is equipped with a planting discharge port for discharging the transplanted plant body to soil, and from this planting discharge port. The transplanted plant is intermittently discharged by its own weight to be planted in the planting groove of the nursery.

[0004]

However, the above seedbed forming device can only form the groove for planting, and the above transplanting device releases the transplanted plant from the planting discharge port. The plant to be transplanted that has fallen to the bottom of the planting groove will fall in all directions around the drop point. There was a problem that could not hold.

It is a principal object of the present invention to provide a nursery bed forming apparatus and a transplanting apparatus which can maintain a good planting posture by simply dropping the transplanted plant into the planting groove by its own weight.

[0006]

In order to achieve the above main object, the invention according to claim 1 is, as shown in FIG. 1, in the bottom of the planting groove, the bottom and the thin soil portion. The soil forming mechanism 30 that forms an adjacent underdrain is provided.

Further, in order to achieve the same main purpose, the invention according to claim 2 releases the transplanted plant body such as seed balls and seedlings into the soil from the planting discharge port 20b as shown in FIG. In the transplanting device for planting, a soil forming mechanism 30 that forms a culvert adjacent to the bottom of the planting groove via the thin-walled soil portion is provided in front of the planting discharge port 20b.

[0008]

According to the first aspect of the present invention, as shown in FIG. 4, since the underdrain is formed adjacent to the bottom of the planting groove via the thin soil portion, the seed ball, seedling, etc. When planting the transplanted plant in the planting groove, only by dropping the transplanted plant by its own weight, the transplanted plant penetrates the thin-walled soil part and penetrates into the underdrain, and the transplanted plant part is planted in the thin-walled soil part. The leaf side portion can be held, and therefore, the planting posture of the transplanted plant can be well maintained.

According to the second aspect of the present invention, as shown in FIG. 4, since a culvert adjacent to the bottom of the planting groove and the thin soil portion is formed in front of the planting discharge port 20b, the planting is performed. The transplanted plant released from the attached discharge port 20b can penetrate through the thin-walled soil part and enter the underdrain, and the thin-sided soil part can hold the leaf side part of the transplanted plant, therefore,
The seedbed can be molded and planted, and the planting posture of the transplanted plant can be maintained well.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION First, an embodiment of an implanting device will be described.

FIGS. 1 and 9 to 11 show, as a transplantation device, a rear part of a tractor, a front part of a body 1 detachably mounted via a pair of left and right lower arms L and a top link T, and a transmission mechanism. While supporting the rotary 2 that interlocks with the PTO shaft of the tractor, a box-shaped frame 3 is supported at the rear of the machine body 1 so as to be vertically swingable via a pivot horizontal shaft 4,
A pair of left and right ground drive wheels 6 and 6 are rotatably supported at a lower portion of the frame 3 via a swingable gear case 5 having a power transmission mechanism incorporated therein, and the ground drive wheels 6 and 6 are provided with the transmission mechanism. The horizontal shaft 7 in the left-right direction, which is interlocked with the horizontal shaft 7, and the two vertical shafts 9, which are interlocked with the horizontal shaft 7 via two sets of helical teeth 8, are supported. On the other hand, a disk-shaped turntable 11 in which twelve insertion holes 11a are arranged at equal intervals in the rotation direction is attached to the upper end of the vertical axis 9, and the turntable 11 is rotated to rotate the ground drive wheel 6. Twelve cups 12 capable of receiving and releasing the transplanted plant W such as seed balls and seedlings are provided on the rear surface of the turntable 11 so as to be rotated by power, and the receiving port 12a thereof has the charging hole 11a. Side by side at equal intervals of 30 degrees There. Further, an adjustment link 13 composed of a turnbuckle is installed between a position in front of the pivotal horizontal shaft 4 of the machine body 1 and an upper portion of the frame 3, and the length of the adjustment link 13 is adjusted to adjust the adjustment link 13. The frame 3 is made to swing up and down about the pivot horizontal axis 4. In addition, in the transplantation device of the embodiment shown in FIGS. 1 and 9 to 11, the frame 3 is formed in a laterally long shape, and two turntables 11 driven by the power of the ground drive wheels 6 are arranged on the left and right sides. , 6 rows can be planted, but since the left and right turntables 11 and 11 have the same structure, the description of one side will be omitted below.

In the support plate 14 provided at an intermediate portion in the vertical direction in the frame 3, the outlet 2b of the cup 12 is connected to the outlet 2b in a predetermined rotation angle region of the turntable 11.
The three cylindrical discharge guide bodies 20A, 20B, 20C corresponding to the three planting strips facing 0a are held at intervals of 60 degrees that doubles the distance between the cups 12, and these The upper end inheritance port 20 of the discharge guides 20A, 20B, 20C
a is expanded so as to have a diameter larger than that of the discharge port 12b, and three fixed rods 21 extending upward along the discharge guides 20 are formed on the support plate 14.
The abutting pieces 22A, 22B, 22C are provided at a distance of 0 degree, and the fixing rods 21 are provided with abutting pieces 22A, 22B, 22C projecting laterally.
Lids 15 for independently opening and closing the discharge ports 12b of the above, an engagement piece 18 provided at one end of a pivot shaft 16 for pivotally supporting these lids 15 through an arm rod 17, and the respective lids 15 By means of an urging spring 19 which constantly urges the discharge port 12b toward the discharge port 12b, the communication port 20a of one discharge guide body and the discharge port 12b of the cup 12 whose planting ridge corresponds to this discharge guide body communicate with each other. It constitutes a communication means to allow.

A holding plate 23 extending in the left-right direction is provided on the lower side of the frame 3, and the lower end side of each of the discharge guide bodies 20A, 20B, 20C is attached to the holding plate 23 by U.
The planting strips are held in a horizontal row via the letter-shaped clamps 24, and the rear ends of the lower ends of the discharge guides 20A, 20B, 20C are cut to release the transplanted plant W from the escape port 20c.
On the other hand, between the ground drive wheels 6 and the rotary 2 of the machine body 1 and the discharge guide bodies 20A, 20B, 2
Three groove cutting tools 25, which consist of a chisel having a V-shaped vertical cross section, which is inserted into the soil and cuts into the soil cultivated by the rotary 2, are detachably provided to the front of the 0C with respect to the planting work direction by mounting screws 26. At the same time, the holding plate 23 is provided with three fork-shaped earth plates 27 in the shape of a fork, in which the portions facing the lower ends of the discharge guides 20A, 20B, 20C are cut away.

Then, when the plant W to be transplanted in the tray 10 is put into each cup 12 of the turntable 11 through the input hole 11a, the inside of each discharge guide 20 passes from the receiving port 12a of each cup 12 to the inheriting port 20a. On the other hand, as the tractor is driven and driven, the soil cultivated by the rotary 2 is provided with three groove cutting tools 25 to form three V-shaped planting grooves M.
The plant W to be transplanted in each of the release guides 20 falls to the bottom of these planting grooves M from the planting and releasing port 20b at the lower end by its own weight.

Therefore, as shown in FIGS. 1 and 2, on the lower side of the machine body 1 in the transplantation device constructed as described above, deeper than the bottom portion m of the planting groove M formed by the groove cutting tool 25. A thin-walled soil portion U is provided between the bottom part m and the underdrain G, and a submerged body 31 that forms a hollow underdrain G under the bottom m.
The soil forming mechanism 30 including the shavings 32 for forming the soil is provided.

The submersible body 31 of the embodiment shown in the figure has a columnar shape extending in the front-rear direction of the machine body 1, and is provided with a guide portion 31a inclined in a conical shape at the front end portion thereof to move submerged in soil. However, the resistance when forming the underdrain G as shown in FIG. And the guide part 3
A thin connecting piece 3 extending upward from the upper surface of 1a
3, a mounting piece 34 is integrally formed on the upper portion of the connecting piece 33, and a plurality of mounting pieces 34 are mounted on the bracket 28 protruding rearward from the rear side of the mounting piece 34 and the groove cutting tool 25. It is mounted so that its position can be adjusted with a screw 29, and as shown in FIG. 2, it is arranged slightly below the lower end edge of the groove cutting tool 25. In addition, the bracket 28 and the mounting piece 34,
A plurality of insertion holes 28a, 34a are vertically formed at predetermined intervals, and mounting screws 29 are inserted through a plurality of sets of these insertion holes 28a, 34a so that the vertical position can be adjusted by tightening nuts. However, a plurality of insertion holes 28a, 3
Instead of providing 4a, at least one of the insertion holes is formed as a long hole, or at least one of the insertion holes is made larger than the outer diameter of the screw portion of the mounting screw 29 to be a normal hole diameter or more so that the position can be adjusted. Good.

Further, the shaving body 32 of the embodiment shown in FIGS. 1 to 3 is integrally formed by extending the lower end portion of each of the discharge guide bodies 20 downwardly and integrally. The shaving edge 32a is formed almost horizontally, and the bottom shaving edge 32a is
It is arranged at a position almost at the same height as the lower end edge of the groove cutting tool 25, and the bottom portion m of the V-shaped planting groove M formed by the groove cutting tool 25 is cut off horizontally as shown in FIG. 4c. The thin soil portion U is formed.

The thickness of the thin soil portion U is adjusted according to the soil geology and humidity in the field. This thickness adjustment is performed, for example, by loosening the mounting screw 29 to adjust the vertical position of the sub body 31 with respect to the groove cutting tool 25, or by swinging the frame 3 up and down by the adjustment link 13 to remove the scraping body 32. Adjust the vertical position with respect to 31,
The optimum thickness is set so that the plant W to be transplanted, which does not collapse naturally and falls by its own weight from the planting discharge port 20b, easily breaks into the underdrain G.

As shown in FIGS. 2 and 3, the groove cutting tool 25 comprises a pair of left and right inclined plates 25a and 25a, and a connecting plate 25b connecting the upper ends of the inclined plates 25a.
The connecting plate 25b is detachably attached to the lower portion of the machine body 1 by the plurality of attaching screws 26. Further, the bracket 2 made of a plate is provided inside the groove cutting tool 25.
8 is detachably attached to the groove cutting tool 25 using the attachment screw 26.

On the other hand, each of the cups 12 is formed in a cylindrical shape having a small diameter from the upper end receiving port 12a to the lower end discharging port 12b, and the discharging port 12b is inclined in the vertical direction,
A bottom lid 15 for opening and closing these outlets 12b is independently provided so as to be swingable, and an arm rod 17 extending downward is connected to one end of each pivot shaft 16 for pivotally supporting each bottom lid 15. Then, an engaging piece 18 extending laterally is provided at the tip end portion of these arm rods 17, and each bottom is provided between the twelve brackets 11b extending downward from the rear surface of the turntable 11 and each bottom lid 15. A biasing spring 19 for constantly biasing the lid 15 toward the discharge port 12b is interposed.

Further, the communicating means is a set of three adjacent cups 12A, 12B, 12C, which is the same as the number of planted strips,
Arm rod 1 in the pair of cups 12A, 12B, 12C
7, the length H1 of 7 and the length H2 of the fixed rod 21 are shown in FIGS.
As shown in, the turntable 11 is divided into three stages.
18A of the cup 12A, the contact piece 2A
2A, only the engagement piece 18B of the cup 12B abuts only the abutment piece 22B, and the engagement piece 18C of the cup 12C abuts only the abutment piece 22C.
The bottom lids 15 of 2B and 12C are independently opened against the biasing spring 19 with a phase delay of 30 degrees. Further, in the embodiment, as shown in FIG. 5, four cups 12A, 12B, 12C are provided, but the number of the cups is not particularly limited.

Also, the tray 1 shown in FIGS. 1 and 9 to 11.
0 pivotally supports the front wall 10a so that the front wall 10a can swing.
By turning 0a forward, the turntable 11
In order to prevent the transplanted plant body W from being accidentally thrown into the cup 12 which is near the discharge, the discharge port 12b is covered with the upper surface of the discharge guide body 20A, 20B, 20C facing the discharge guide body 20A, 20B, 20C. The transplanted plant W is made easy for the operator to take out.

Further, in the embodiment shown in FIGS. 1 and 9 to 11, the pulling lever 40 and the swing arm 41 are pivotally supported on the frame 3, and the intermediate portion of the swing arm 41 is connected to the interlocking arm 42. The tip end portion of the swing arm 41 is pivotally attached to the vertically oriented rod 43 pivotally supported at the intermediate portion of the gear case 5, and the pull up lever 40 is operated. As a result, the ground drive wheel 6 can be lifted about the horizontal shaft 7.

On the other hand, on the front side of the frame 3 in the machine body 1, a step 44 for an operator who takes out the plant W to be transplanted from the tray 10 and a stool which leans forward obliquely upward from the step 44 A table 45 is provided so that an operator can sit down on the stool 45 and throw the plant W to be transplanted in the tray 10 into the cup 12 as shown in FIG. A gear case 47 containing a gear interlocking with the PTO shaft of the tractor is attached to the gear case 4 via a universal shaft coupling 46.
7, a PTO horizontal shaft 48 extending in the left-right direction is rotatably supported, and the PTO horizontal shaft 4 is attached to both ends of the PTO horizontal shaft 48.
The rotary 2 is supported via a transmission case 49 having a transmission mechanism interlocked with the drive unit 8.

In FIG. 9, reference numeral 50 denotes a rotary cover of the rotary 2.

When 6 rows are planted in the above construction,
Two operators ride on the steps 44 provided on the left and right sides of the machine 1, and when planting three rows, one operator rides on the step 44 on one side in the left-right direction of the machine 1 and the plants to be transplanted in the tray 10 are transferred. The body W is put into each cup 12 of the turntable 11.

Next, the case of planting the transplanted plant W made of lacquer plant in three rows will be described.

The front cover 10a of the tray 10 is tilted forward so that the discharge guides 20A, 20B on the turntable 11
After covering the upper surface portion on the side opposite to 20C, the spheroidal connection of the transplanted plant W in the tray 10 which is divided into blocks and is separated is put into each cup 12 of the turntable 11 for one piece. In addition, the turntable 11 is rotated in the counterclockwise direction in FIG. 5 by driving the ground drive wheels 6 by driving the tractor.

With the rotation of the turntable 11, 1
Next, the engagement piece 18C of the cup 12C abuts the abutment piece 22C, the bottom lid 15 is opened, and the transplanted plant W in the cup 12C is released from the discharge port 12b to the inheritance port 20a in the discharge guide body 20C. On the other hand, as the tractor is driven and driven, the soil cultivated in the rotary 2 becomes
Three V-shaped planting grooves M are cut by one groove cutting tool 25,
Further, as shown in FIG. 4b, a culvert G is formed by the three submerged bodies 31 at the bottoms of the planting grooves M, and at the bottom m of each planting groove M as shown in FIG. Is scraped off horizontally by the to form a thin soil portion U between the bottom m and the underdrain G.

The planted discharge port 2 of the discharge guide body 20C
The transplanted plant W falling from 0b by its own weight may penetrate the thin soil part U and enter the underdrain G as shown in FIG. 4d, and the thin soil part U may hold the linear leaf part of the transplanted plant W. Therefore, the planted posture of the transplanted plant W can be favorably maintained. Then, after the linear leaf portion of the transplanted plant W exits from the escape port 20c of the discharge guide body 20C, the soil cover plate 2
The bottom part of the planting groove M is filled with 7, and soil around the transplanted plant W can be covered.

As described above, after the transplanted plant W of the cup 12C is first discharged to the discharge guide body 20C, the engaging piece 18B of the cup 12B abuts the contact piece 22B and the bottom The lid 15 is opened, the transplanted plant W in the cup 12B is released into the release guide body 20B, and is planted in the same manner as in the case of the cup 12C.

And as described above, the second cup 12B
After the transplanted plant W therein is released to the release guide body 20B, the engagement piece 18A of the cup 12A is thirdly contacted with the contact piece 22.
By contacting A, the bottom lid 15 is opened, the transplanted plant W in the cup 12A is released into the release guide body 20A, and is planted in the same manner as in the case of the cups 12C and 12B. By staggering the opening times of the cups 12A, 12B, 12C, staggering can be performed as shown in FIG. 12, and only one biasing spring 19 can be bent with respect to the rotation angle of the turntable 11. The load on the ground drive wheel 6 can be reduced, and it is possible to reliably prevent the ground drive wheel 6 from sliding and rotating when the cup outlet 12b is opened.

Next, an embodiment of the nursery bed forming apparatus will be described.

This nursery bed forming apparatus is shown, for example, in FIGS.
The frame 3 and the ground drive wheel 6 in the transplantation device shown in FIG.
, The cup 12, the discharge guide body 20, and the tray 10, and the machine body 1 mounted on the rear portion of the tractor, the groove cutting tool 25 supported by the machine body 1, and the soil forming mechanism 3
0 and the structure of the groove cutting tool 25 and the soil forming mechanism 30 and the operation and effect thereof are the same as those of the transplanting device shown in FIGS. 1 to 11, so a detailed description thereof will be given. Omit it. However, the scraping body 32 in the soil forming mechanism 30 is attached to the lower portion of the machine body 1 by a mounting means such as a mounting screw so that the position thereof can be adjusted, and the vertical position with respect to the submersible body 31 can be adjusted.

In the above embodiment, the traveling type transplanting apparatus and seedbed forming apparatus mounted on the tractor have been described, but other walking type transplanting apparatus and seedbed forming apparatus may be used.

Further, the plant W to be transplanted may be seed balls such as lacquer plants or pot seedlings.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of the transplantation device of the present invention with a part thereof omitted.

FIG. 2 is a partially cutaway side view showing an enlarged soil forming mechanism in the transplanter.

FIG. 3 is a side view taken along line XX of FIG.

FIG. 4 is an explanatory view showing a process of forming a planting groove in soil and planting it.

FIG. 5 is a plan view of a turntable portion of the transplanter.

FIG. 6 is an enlarged cross-sectional view of a cup portion of the transplanter.

FIG. 7 is a cutaway sectional view of a communication means portion in the transplanter.

FIG. 8 is a cutaway sectional view of a communication means portion in the transplanter.

FIG. 9 is a side view of the transplanter.

FIG. 10 is a partially cutaway rear view in which a part of the transplanter is omitted.

FIG. 11 is a plan view of the transplanter.

FIG. 12 is an explanatory view showing a planting form.

[Explanation of symbols]

20b ......... Outlet with planting 30 ……… Soil forming mechanism

Continuation of the front page (56) Reference JP-A-5-284818 (JP, A) JP-A-49-39244 (JP, A) Actually opened 54-44713 (JP, U) Actually opened 50-39332 (JP , U) Actual development 59-83308 (JP, U) Actual public 49-6416 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01C 5/00-5/08 A01C 11/00-11/02 303

Claims (2)

(57) [Claims] 1. A nursery bed forming apparatus comprising a soil forming mechanism (30) at the bottom of the planting groove to form an underdrain adjacent to the bottom through a thin soil portion. 2. A transplanting device for discharging a plant to be transplanted such as seed balls and seedlings from the planting discharge port (20b) into the soil to plant the planting groove in front of the planting discharge port (20b). A transplantation device, characterized in that a soil forming mechanism (30) for forming an underdrain adjacent to the bottom through a thin soil portion is provided.