JP2013039050A - Seedling-planting device of transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED To provide a planting device for relatively long and slender seedlings such as long leek bare seedlings in transplantation cultivation of agricultural crops, even if thick and long seedlings are deeply planted, soil does not enter from the top into the grooved device, Provided is a seedling planting device for a transplanting machine in which soil does not enter from the top into the ditcher even if the planting depth is adjusted.
SOLUTION: The outer periphery of a pair of pressure reducing wheels 15 is a thin cylindrical rim 15a, an auxiliary plate 19 is provided above the rear ends of both side plates of the grooved device 13, and the pressure reducing wheel 15 is provided on the auxiliary plate 19 from its rear end. A narrow kerf that matches the shape of the rim 15a is provided, and a part of the rim 15a of the pressure reducing wheel 15 enters the inside of the groove opener 13 through the groove of the auxiliary plate 19, and the vertical adjustment of the pressure reducing wheel 15 is performed. As a result, the auxiliary plate 19 is moved by the rim 15a entering the cut groove.
[Selection] Figure 4

Description

  The present invention relates to a seedling planting apparatus for relatively long and slender seedlings such as long leek bare seedlings for transplanting crops.

  A transplanting machine that transplants seedlings such as bare seedlings, which are taken out from the seedbed after raising seedlings, washed roots, dropped and bundled, into the main field, makes it possible for workers to directly plant seedlings one by one between a pair of elastic disks. It has been known for a long time as a hand transplanter.

  The seedling planting device of this type of transplanter is composed of a pair of elastic disks, a grooved device, and a pair of pressure-reducing wheels. A groove opener opens a planting groove on a farm surface by a pair of side plates whose front ends are closed and then spread. The pair of pressure-reducing wheels are located on the field surface outside the elastic disk, are inclined so that the upper part and the front part are separated from each other, and cover the soil so as to close the planting groove opened by the groove opener. Moreover, what obtains the power which rotates a pair of elastic disk etc. with the rotational power of a pressure-reducing wheel is known.

  What provided the auxiliary | assistant board on the outer side with respect to a pair of side plate of a groove opener is also known.

  For example, as shown in Japanese Utility Model Publication No. 52-6597, a groove cutter made of a pair of side plates expanded in a direction opposite to the traveling direction, and a side wall of the groove cutter between the side plates. An auxiliary plate is provided so as to face the side plate with a gap forming a soil passage.

  In this planting grooving device, the soil pushed by the groovers goes to the shoulders of the ridges to the left and right of the grooving machine so that the grooves are cut on the raised ridges and no longer twists. Because the auxiliary plate is attached, the pushed soil is forcibly stopped from coming out by the auxiliary plate, and it is prevented from falling from the shoulder of the ridge. It is said to prevent the collapse.

  Moreover, what opened the hole with respect to a pair of side plate of a groove opener is also known.

  For example, as shown in Japanese Utility Model Publication No. 4-13992, it includes a groove forming device having a pair of left and right side plates arranged in a spread shape after the front end portion is closed, and in the groove formed by the groove forming device, In a working machine in which a spraying port for spraying fertilizer, chemicals, etc. and a working unit for planting and sowing seedlings are arranged at the front and rear of the groover, on the vertical surface of the side plate, in the groove from the outside A soil inlet for introducing soil is formed, the spray port is disposed immediately after the soil inlet, and the working portion is disposed behind the spray port.

  In this grooving device, the sprayed material in the groove is mixed with the soil, so that a large amount of fertilizer, chemicals, etc. are in direct contact with the roots of the transplanted seedlings and the seeds sowed. It is said that there is no risk of fertilizer, injury, chemical damage, etc. on seedlings and seeds.

Japanese Utility Model Publication No. 52-6597 Japanese Utility Model Publication 4-13992

  In the conventional transplanter as described above, seedlings were planted at a planting depth of about 5 cm.

  In the cultivation of long leeks, instead of harvesting all at once, in order to lengthen the shipping period, transplanting is carried out at a time.

  In the case of long leek naked seedlings, there is a margin in the seedling raising period, sowing seedlings all at once, transplanting thin and short seedlings at the beginning, and finally planting thick and long seedlings (about 50 cm long) is there. In the case of thick and long seedlings, the weight also increases, and at the planting depth of about 5 cm, the seedlings may fall after planting.

  Therefore, it is conceivable to plant thick and long seedlings at a planting depth of about 10 to 15 cm so that the seedlings do not fall after planting.

  However, when the planting depth is simply increased, the rear upper part of the grooved device interferes with the lower end front of the pair of pressure-reducing wheels.

  The reason for the interference between the groover and the pressure wheel is that the width of the lower part of the groover is just enough for the seedlings to pass through, but the upper part is wider to accommodate the pressing rollers of a pair of elastic disks. Yes. Further, in the case of planting in a groove like a long leek seedling, the upward inclination of the pair of pressure-reducing wheels interferes with the wall of the groove and cannot be increased.

  If the upper part is cut away from the interference part of the groover with the pressure ring, soil will enter the groover from above before planting seedlings, making it impossible to plant. This is because when the planting depth is increased, the amount of soil that can be divided by the ditches increases and the height of the soil in front of the wheel is increased.

  On the other hand, to adjust the planting depth, the relative position of the pressure wheel is adjusted up and down with respect to the pair of elastic discs and the grooved device. If you cut the upper part from the interference part and adjust the planting depth deeply, the space between the pressure ring and the notch of the groove opener will open, and soil will enter the groove opener from above.

  Therefore, the present invention is such that even if thick and long seedlings are deeply planted, the soil does not enter from the top into the grooved device, and even if the planting depth is adjusted, the soil does not enter the grooved device from above. The object is to provide a seedling planting device.

  In the seedling planting device of the transplanter of the invention of claim 1, the outer periphery of the pair of pressure reducing wheels 15 is a thin cylindrical rim 15a, and the rim 15a of the pressure reducing wheel 15 from the rear end is formed on both side plates of the grooved device 13. A narrow groove 19a having a shape corresponding to the shape is provided, and a part of the rim 15a of the pressure reducing wheel 15 passes through the groove 19a of the groove opener 13 and enters the inside of the groove opener 13.

  The seedling planting device of the transplanter of the invention of claim 2 is characterized in that the outer periphery of the pair of pressure-reducing wheels 15 is a thin cylindrical rim 15a, and an auxiliary plate 19 is provided above the rear ends of both side plates of the grooved device 13, The auxiliary plate 19 is provided with a narrow groove 19a matching the shape of the rim 15a of the pressure wheel 15 from the rear end, and a part of the rim 15a of the pressure wheel 15 is opened through the groove 19a of the auxiliary plate 19. The auxiliary plate 19 enters the inside of the vessel 13 and moves by the rim 15a that enters the cut groove 19a by adjusting the pressure wheel 15 up and down.

  According to the first aspect of the present invention, the outer periphery of the pair of pressure reducing wheels 15 is formed as a thin cylindrical rim 15a, and both side plates of the grooved device 13 have narrow widths matching the shape of the rim 15a of the pressure reducing wheel 15 from the rear end. Since a part of the rim 15a of the pressure reducing wheel 15 passes through the groove 19a of the groove opening device 13 and enters the inside of the groove opening 13, the groove groove 19a is also opened inside the rim 15a of the pressure reducing wheel 15. Both side plates of the device 13 will be present, so that no soil will enter the groove device 13 from above, and even if the planting depth is deep, it can be planted normally.

  According to the invention of claim 2, the outer periphery of the pair of pressure-reducing wheels 15 is a thin cylindrical rim 15 a, and the auxiliary plate 19 is provided above the rear ends of both side plates of the groove opener 13. A narrow kerf 19a that matches the shape of the rim 15a of the pressure wheel 15 is provided from the end, and a part of the rim 15a of the pressure wheel 15 enters the inside of the groove opener 13 through the groove 19a of the auxiliary plate 19. Since the auxiliary plate 19 is moved by the rim 15a that has entered the groove 19a by adjusting the pressure wheel 15 up and down, the auxiliary plate 19 is also present inside the rim 15a of the pressure wheel 15, and the planting depth Even if it adjusts, soil does not enter into the grooved device 13 from above, and it can be planted normally even if the planting depth is deep.

FIG. 1 is a front view showing a seedling planting device of a transplanter. FIG. 2 is a side view of FIG. FIG. 3 is a plan view of FIG. FIG. 4 is a partially enlarged view showing a main part of FIG. FIG. 5 is a diagram showing a deep planting depth in FIG. FIG. 6 is a partially enlarged view showing a main part of FIG. FIG. 7 is a plan view of FIG. FIG. 8 is a partially enlarged view showing a main part of FIG. FIG. 9 is a partially enlarged view showing a main part of FIG. FIG. 10 is a partially enlarged view showing a main part of FIG.

  For the purpose of providing a seedling planting device 10 for a transplanting machine in which soil does not enter from the top even when thick and long seedlings are deeply planted, the outer periphery of the pair of pressing wheels 15 is a thin cylindrical rim 15a The groove plate 13 is provided with narrow kerfs 19a that match the shape of the rim 15a of the pressure reducing wheel 15 from the rear end thereof, and a part of the rim 15a of the pressure reducing wheel 15 is cut by the groove opening 13. This was realized by entering the inside of the groove opening device 13 through the groove 19a.

  In addition, for the purpose of providing a seedling planting device 10 for a transplanter in which soil does not enter from the top even if the planting depth is adjusted, the outer periphery of the pair of pressing wheels 15 is a thin cylindrical rim. 15a, an auxiliary plate 19 is provided above the rear ends of both side plates of the groove opener 13, and the auxiliary plate 19 is provided with a narrow cut groove 19a that matches the shape of the rim 15a of the pressure reducing wheel 15 from the rear end, A part of the rim 15a of the pressure wheel 15 enters the inside of the groove device 13 through the groove 19a of the auxiliary plate 19, and the auxiliary plate 19 enters the groove 19a by the vertical adjustment of the pressure wheel 15 by the rim 15a. Realized by moving.

  1 to 10 show a seedling planting device 10 of a transplanter according to an embodiment of the present invention.

  The seedling P used in this example is a relatively long seedling P like a long leek naked seedling which is taken out from the seedbed after raising seedlings, washed with roots, and soiled and bundled.

  The present invention relates to a seedling planting apparatus 10 for a transplanter in which even a seedling P having a length of about 50 cm is planted in the main field.

  The transplanter is provided with a machine frame 1, a seat 2 on which a worker is seated, and a backrest 3 on the front upper side of the machine frame 1. A tractor is attached to the front of the machine casing 1 and is pulled by the progress of the tractor.

  A seedling planting device 10 is provided behind the machine frame 1 from behind. The embodiment shows a transplanter for 2 畦 and has a pair of right and left seedling planting devices 10. The space between the pair of seedling planting apparatuses 10 is 95 cm.

  The seedling planting device 10 is provided with a long planting part frame 11 from the front to the rear, and the front end part of the planting part frame 11 is attached to the machine frame 1 so that the rear end of the planting part frame 11 is turned up and down. A groove cutting blade 12 for cultivating the field in the lower front is provided, and a groove opening device 13 for opening the planting groove is provided behind the groove cutting blade 12.

  A planting disk 14 which is a pair of elastic disks is provided in the center of the planting part frame 11. In the embodiment, the planting disk 14 is made of a thin metal and has a diameter of 80 cm, and a sponge body is stuck to the outer periphery of the inner surface.

  A large number of pressing rollers 31 for bringing the pair of planting disks 14 together are provided on the outer peripheral portion from the front of the planting disk 14 to the lower side, and the seedlings P transferred horizontally to the planting disk 14 are planted vertically.

  A pair of left and right pressure-reducing wheels 15 are provided slightly below and below the planting disk 14. The pressure wheel 15 is in contact with the field E, and the pressure wheel 15 rotates as the transplanter advances. The seedling P is transferred by the planting disk 14 to the planting groove opened by the groove opener 13, and the seedling P is planted by bringing soil with the pressure wheel 15.

  On the other hand, a chain and a chain wheel are provided between the pressure wheel 15 and the planting disk 14 to transmit the rotational power of the pressure wheel 15 to the planting disk 14. At this time, the advancing speed of the transplanter and the peripheral speed of the planting disk 14 are made substantially the same, and the planting is performed in a state where there is no relative speed difference between the seedling P and the field.

  The pressure-reducing wheel 15 can be adjusted up and down by turning a planting depth adjustment handle 16 relative to the planting frame 11, and by turning the planting depth adjustment handle 16, the planting frame 11 The rear end moves up and down, and the planting disk 14 and groover 13 also move up and down.

  A pair of left and right earthenware discs 17 are provided below the rear end of the planting part frame 11, and the earthenware discs 17 bring the soil to the planted seedlings P.

  A seedling stand 4 is provided on the machine frame 1 above the right and left planting disks 14, and a seedling P to be planted is placed on the seedling stand 4.

  A compression spring 5 is provided between the machine frame 1 below the seedling stand 4 and the rear upper part of the planting part frame 11 to transmit the load of the machine body to the seedling planting apparatus 10 while regulating drooping.

  A seedling supply device 20 is provided on the planting part frame 11 in front of the planting disk 14. From there, the seedling supply device 20 inverts the seedling P toward the planting disk 14 of the seedling planting device 10 and conveys the seedling P downward from the horizontal direction.

  The seedling supply device 20 is provided with a box-shaped seedling supply section frame 21 and a seedling supply belt 22 that rotates downward from the seedling supply section frame 21 from the horizontal direction.

  A pressure-reducing wheel mounting frame 18 is provided on the rear and upper side from the root planting part frame 11 of the pair of left and right pressure-reducing wheels 15, and a planting depth adjustment in which a screw is engraved between the pressure-reducing wheel mounting frame 18 and the planting part frame 11. The handle 16 is inserted, and the planting depth adjusting handle 16 is turned to adjust the relative position between the pressure reducing wheel mounting frame 18 and the planting part frame 11.

  4 shows a shallow planting state in which the pressure-reducing wheel mounting frame 18 is lowered with respect to the planting part frame 11, the planting part frame 11 is raised, and the pressure-reducing wheel 15 is lowered. FIG. 5 shows a deep planting state in which the pressure-reducing wheel mounting frame 18 is raised with respect to the planting part frame 11, the planting part frame 11 is lowered, and the pressure-reducing wheel 15 is raised.

  A shaft protruding substantially left and right is provided at the lower end portion of the pressure-reducing wheel mounting frame 18, and a pair of left and right pressure-reducing wheels 15 are fitted and fixed so as to freely rotate on the shaft. The pair of pressure-reducing wheels 15 are positioned on the field surface E outside the planting disk 14, are inclined so that the upper part and the front part are separated from each other, and cover the planting groove opened by the groove opener 13 so as to close.

  The outer circumference of the pair of left and right pressure-reducing wheels 15 is a thin cylindrical rim 15a. In the embodiment, the rim 15a has an outer diameter of about 64 cm, a width of about 7.5 cm, and a thickness of about 6 mm.

  The rim 15a is supported by a plurality of spokes 15b, and a number of anti-slip claws 15c are provided outside the outer periphery of the rim 15a.

  The groove opener 13 opens a planting groove on the field E by a pair of left and right side plates whose front end is closed and then spreads out. The groove opening device 13 has a front lower end inclined backward and downward like a ship in a side view, and the rear end is substantially vertical. At the rear end of the groove opener 13, a notch 13a is provided in a side plate at a position where the rim 15a in front of the lower ends of the pair of pressure reducing wheels 15 interferes.

  A pair of left and right auxiliary plates 19 are provided above the rear ends of both side plates of the groove opener 13. The auxiliary plate 19 is a substantially rectangular thin plate, and the upper side is inclined forward. A longitudinal hole 19b in the substantially horizontal direction is provided at the upper end of the auxiliary plate 19, and the guide body 30 passes through the long hole 19b so that it moves to a parallel position slightly away from the side plate of the groove opener 13 and moves forward and backward. Is allowed and fixed.

  The auxiliary plate 19 is provided with a narrow kerf 19a matching the substantially arc shape of the rim 15a of the pressure reduction wheel 15 from the rear end to the upper front side. In the embodiment, the width of the kerf 19a is about 12 mm while the thickness of the rim 15a is about 6 mm.

  A thick reinforcing plate 19c is fixed to the outside of the auxiliary plate 19 around the cut groove 19a. Similarly to the auxiliary plate 19, the reinforcing plate 19c is provided with a kerf 19a. In the embodiment, the auxiliary plate 19 has a thickness of about 1.6 mm, and the reinforcing plate 19c has a thickness of about 9 mm.

  A part of the front side of the lower end of the rim 15a of the pressure wheel 15 passes through the groove 19a of the auxiliary plate 19 and enters the inside of the groove opening device 13. By the vertical adjustment of the pressure reducing wheel 15 that rotates the planting depth adjustment handle 16, the auxiliary plate 19 is moved in the substantially horizontal direction and the lower end by the rim 15a that has entered the cut groove 19a.

  In the shallow planting state, the auxiliary plate 19 moves forward, and its rear end substantially coincides with the rear end of the side plate of the groove opener 13, and in the deep planting state, it moves rearward from the rear end of the side plate of the groove opener 13. It protrudes and rotates to tilt forward.

  The size of the auxiliary plate 19 is set so as to substantially cover the notch 13a of the side plate of the groove opening device 13 even when the auxiliary plate 19 moves.

  As a result, a pair of left and right auxiliary plates 19 and both side plates of the groove opener 13 are also present inside the rim 15a of the pressure reducing wheel 15, and even if the planting depth is adjusted, the groove opener 13 Soil does not enter from above, and can be planted normally even if the planting depth is deep.

  In the above embodiment, the auxiliary plate 19 is moved by adjusting the pressure wheel 15 up and down and the groove 19a is provided in the auxiliary plate 19. However, when the pressure wheel does not move, both side plates of the groove opening device 13 are shown. A kerf may be provided directly on.

  Moreover, although the example of the long leek naked seedling was shown as the seedling P, it may be in the case of a crop seedling that is deeply planted than usual.

  Moreover, although the thing by a pair of planting disk 14 and the pressing roller 31 was shown as the seedling planting apparatus 10, the seedling planting apparatus may be another method.

13 Groove
15 wheel
15a rim
19 Auxiliary plate
19a kerf

Claims (2)

  The outer periphery of the pair of pressure-reducing wheels is a thin cylindrical rim, and both side plates of the grooved device are provided with a narrow groove that matches the shape of the rim of the pressure-reducing wheel from the rear end, and part of the rim of the pressure-reducing wheel is A seedling planting device for a transplanter that enters the inside of the grooved device through the groove of the grooved device.   The outer periphery of the pair of pressure-reducing wheels is a thin cylindrical rim, and an auxiliary plate is provided above the rear ends of both side plates of the grooved device, and the auxiliary plate has a narrow width that matches the shape of the rim of the pressure-reducing wheel from the rear end. A transplanting machine in which a kerf is provided, and a part of the rim of the pressure wheel enters the inside of the groove device through the groove of the auxiliary plate, and the auxiliary plate moves by the rim that has entered the groove by the vertical adjustment of the pressure wheel. Seedling planting equipment.

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