JP2012019799A - Seedling transplanter with ground working apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seeding transplant with a ground working apparatus by which the selection of working or non-working of a ground working apparatus such as a rotor can be done to independently from the operation of a height adjusting lever of the ground working apparatus and the selection of the working or non-working of the ground working apparatus and the height adjusting of the ground working apparatus can be attained with a simple constitution.SOLUTION: The seedling transplanter with the ground working apparatus has the ground working apparatus arranged liftably to the transplanting section (4), the lifting operation tool (84) for lifting and lowering the ground working apparatus to the non-working position where the ground working apparatus is lifted and the working position where the ground working apparatus is lowered, the height adjusting operating tool (81) arranged for changing and adjusting the height of the ground working apparatus in the working position set by from the lifting operation tool (84), is constituted so as to be able to operate the lifting operation tool (84) while maintaining the height adjustment of the ground working apparatus by the height adjusting operation tool (81), and is constituted so as to lift the ground working apparatus to the non-working position interlocking with the lift of the seedling transplanting section (4).

Description

  The present invention relates to a seedling transplanter with a ground work device provided with a powder material feeding device such as a fertilizer application device or a chemical spraying device.

In a seedling transplanter equipped with a seedling planting device with a float (sometimes referred to as a rice transplanter), a configuration with a rotor for leveling the field just before seedling planting by the seedling planting device is known. (See Patent Document 1) .

  In the present specification, the forward direction of the seedling transplanter is referred to as the front side, the backward direction is referred to as the rear side, and the left-right direction toward the forward direction is referred to as the left side and the right side, respectively.

Japanese Patent No. 3592682

  The seedling transplanting machine disclosed in the above-mentioned patent document includes a rotor for raising and lowering a seedling planting device by a hydraulic cylinder and leveling a field in front of the seedling planting device, and the seedling planting device for the rotor And a rotor lifting / lowering adjustment device that enables the rotor to be held at a position higher than the farm scene, and has an arrangement in which an operation lever of the rotor lifting / lowering adjustment device can be operated from the driver's seat. Therefore, the operator at the driver's seat can easily adjust the height of the rotor relative to the seedling planting device while operating the operation lever of the rotor lifting / lowering adjustment device.

  However, since the rotor is moved up and down by operating the hydraulic cylinder by operating the rotor height adjusting lever, it is not possible to select whether to operate or not operate the rotor independently from the operation of the rotor height adjusting lever. .

  Accordingly, an object of the present invention is to enable the selection of the operation and non-operation of the ground work device such as the rotor independently of the operation of the height adjustment lever of the ground work device, and the operation and non-operation of these ground work devices. It is intended to provide a seedling transplanter with a ground work device that can achieve selection and ground work device height adjustment with a simple configuration.

The above-mentioned problem of the present invention is solved by the following means.
The invention according to claim 1 detects the vertical movement of the seedling planting part (4) provided in the rear part of the traveling vehicle body (2) so as to be movable up and down and the center float (55) provided in the seedling planting part (4). An angle-of-attack control sensor (57) for controlling the raising and lowering of the seedling planting part (4) based on the detection of the angle-of-attack control sensor (57) to maintain the seedling planting depth constant. A ground work device (27) provided so as to be movable up and down with respect to the planting part (4), and a lifting operation tool provided for raising and lowering the ground work device (27) to a raised non-working position and a lowered work position. (84) and a height adjustment operation tool (81) provided for changing and adjusting the height at the work position of the ground work device (27) performed by the lifting operation tool (84), While maintaining the height adjustment of the ground work device (27) by the height adjustment operation tool (81), the lifting operation tool (8 ) A structure that can manipulate a seedling planting unit (4) increases in conjunction with the ground working apparatus (27) ground work apparatus with a seedling transplantation machine was configured to raise the the non-working position of the.

The invention described in claim 2 makes it possible to adjust the control sensitivity of the raising / lowering control of the seedling planting part (4), and a cover (37) is provided behind the ground work device (27), so that the control sensitivity of the raising / lowering control is increased. The seedling transplanter with a ground work device according to claim 1, wherein the cover (37) is moved up and down in conjunction with each other.

According to a third aspect of the present invention, a cover (37) is provided at the rear of the ground work device (27), and a rotation fulcrum (37a) for opening and closing the cover (37) from the front side at the rear of the cover (37). The seedling transplanting machine with the ground work device according to claim 1 or 2 provided with a) .

According to a fourth aspect of the present invention, the ground work device (27) includes a long-diameter disk (27c) and a short-diameter cylinder (27d) as compared with the disk (27c). It is a seedling transplanter with a ground work apparatus given in any 1 paragraph.

According to invention of Claim 1, selection of the work position and non-work position of a ground work apparatus (27) can be performed independently from operation of a height adjustment operation tool (81), and a seedling planting part ( 4) The ground work device (27) can be automatically raised to the non-work position in conjunction with the rise of 4), and the selection of the work position and the non-work position of the ground work device (27) can be easily switched .

Moreover, according to invention of Claim 2, in addition to the effect of invention of Claim 1, when soil is soft, a mud splash prevention effect is heightened, and when soil is hard, a muddy water flow can be made to flow easily back. .
According to the invention described in claim 3 , in addition to the effect of the invention described in claim 1 or 2 , the cover (37) can be easily opened and closed from the front side to remove impurities .

According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the disc (27c) allows the impurities in the field to be inserted into the field. This improves the leveling performance and seedling planting performance.

It is a side view of the riding type rice transplanter of the Example of this invention. It is a top view of the riding type rice transplanter of FIG. It is a principal part side view of the seedling planting part of FIG. It is a principal part rear view of the support structure of the seedling stand of FIG. It is a principal part top view of the seedling planting part of FIG. The figure explaining the stop aspect of the bending piece 82 of the rotor vertical position adjustment lever 81 and the protrusion part 66a of the beam member 66 is shown. It is a principal part rear view of the support structure of the other Example of the seedling mounting stand of FIG. It is a principal part side view of the seedling planting part of FIG. It is the top view (FIG. 9 (a)) of the rotor part of the seedling planting part of FIG. 1, and the AA arrow directional view of FIG. 9 (a). It is an exploded view of the rotor part of the seedling planting part of FIG. It is a rear view of the rotor part of the other Example of the seedling planting part of FIG. It is a principal part rear view of the support structure of the other Example of the seedling mounting stand of FIG. It is a side view of the rotor part of the seedling planting part of FIG. It is a side view of the rotor part of the other Example of the seedling planting part of FIG. It is a side view of the rotor part of the other Example of the seedling planting part of FIG. It is a side view of the rotor part of the other Example of the seedling planting part of FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is the side view and top view of the riding type rice transplanter with a fertilizer which equip | installed the fertilizer with the fertilizer delivery apparatus which is one Example using this invention. In this riding type rice transplanter 1 with a fertilizer application, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via an elevating link device 3 so that the seedling planting portion 4 can be moved up and down. Is provided.

  The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles projecting outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10 and 10 are respectively attached. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18.

  The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via the belt transmission device 21 and the HST 23. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and also the fertilizer application device 5 by the fertilization transmission mechanism 28. Is transmitted to.

  The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly grid-shaped (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls on the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

Further, on both the left and right sides of the front part of the traveling vehicle body 2, the spare seedling platforms 38, 38 on which the replenishment seedlings are placed can be pivoted to a position projecting laterally from the machine body and a position housed inside. Is provided.
The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted by hydraulic pressure. The upper link 40 pivots up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

  The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings to the seedling outlet 51a of each row one by one. When all the seedlings are supplied to the seedling outlet 51a, the seedling feed belt 51b is used to transfer the seedlings downward by a seedling feeding belt 51b, and the seedling planting is carried out in the field. Attaching device 52,..., A pair of left and right drawing markers (not shown) for drawing the aircraft path in the next stroke to the topsoil surface, and the like are provided. In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the seedling planting device 52, Seedlings are planted by ... Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side moves up and down in accordance with the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. 57 (FIG. 13), and according to the detection result, the planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 to raise and lower the seedling planting unit 4. .

  The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... And applies the fertilizer to the left and right sides of the floats 55, 56, 56 with the fertilizer hoses 62,. Guides (not shown), guided to the fertilizer guide, ... Grooves (not shown) provided on the front side of the fertilizer guide, ... are dropped into the fertilization structure formed near the side of the seedling planting strip. ing. Air generated by a blower 58 driven by an electric motor (not shown) is blown into the fertilizer hose 62 through a long air chamber 59 in the left-right direction, and the fertilizer in the fertilizer hose 62 is ... It is forcibly transported.

  A rotor 27 (27a, 27b) which is an example of a leveling device is attached to the seedling planting unit 4. In addition, the seedling mount 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame 65 having a full width in the left-right direction and the vertical direction that supports the entire seedling planting unit 4 as a rail.

The main part of a rotor support structure is shown in the side view of FIG. 3 and the rear view of FIG. 4, and the principal part top view of the rotor 27, the floats 55 and 56, and the seedling planting apparatus 52 part is shown in FIG.
The rotor support structure includes a beam member 66 whose upper ends are rotatably supported on both side members 65b of the support frame 65 of the seedling stage 51, a support arm 67 fixed to both ends of the beam member 66, and the support. A rotor support frame 68 that is rotatably attached to the arm 67 is provided. A drive shaft 70 (70a, 70b) of the rotor 27 (27a, 27b) is attached to the lower end of the rotor support frame 68. Further, the lower end portion of the rotor support frame 68 is connected to a connecting member 71 rotatably attached to the transmission case 50.

  As shown in FIG. 5, the rotor 27 b in front of the center float 55 is arranged in front of the rotor 27 a in front of the side float 56 due to the arrangement position with the floats 55 and 56. Therefore, power to the drive shaft 70a of the rotor 27a is transmitted from the gear in the gear case 18 of the rear wheel 11 through the universal joint 72 and the like, and the drive shaft 70b of the rotor 27b is driven by the drive shafts 70a, 27a of both rotors 27a, 27a. Power is transmitted from a pair of chains (not shown) in a pair of left and right chain cases 73 to which power is transmitted from the end portion inside the vehicle body of 70a.

  Since the drive shaft 70b of the rotor 27b is only supported via a pair of left and right chain cases 73, 73, a reinforcing member 74 that bridges the pair of left and right chain cases 73, 73 is provided to reinforce the chain cases 73, 73. Is provided.

The rotor 27b is suspended by a pair of link members 76 and 77 whose upper ends are supported by the beam member 66 via a spring 78.
The pair of link members 76 and 77 includes a first link member 76 whose one end is fixedly supported by the beam member 66 and a second link member 77 whose one end is rotatably connected to the other end of the first link 76. Thus, the spring 78 is connected between the other end of the second link member 77 and the mounting piece 70c rotatably supported by the reinforcing member 74.

  A bent piece 82 is fixed to the lower end portion of the rotor vertical position adjusting lever 81, and the bent piece 82 is rotatably supported by the support frame 65. When the lever 81 is rotated in the left-right direction of the vehicle, the lever 81 is bent near the protrusion 66a fixedly supported by the beam member 66 that is rotatably supported by the side members 65b of the support frame 65. The piece 82 rotates up and down. Since the bent piece 82 is locked below the protrusion 66a, the protrusion 66a rotates the lever 81 in the right direction of the machine body (in the direction of arrow S in FIG. 4), so that the beam member 66 is centered upward. Rotate as By the rotation of the projecting portion 66a, the end of the first link member 76 opposite to the connecting portion with the beam member 66 is also rotated upward about the beam member 66. By rotating the first link member 76 upward, the rotor 27b can be lifted upward via the second link member 77 and the spring 78. When the rotor 27b is moved upward, the rotor 27a is also simultaneously moved upward via the drive shaft 70b and the drive shaft 70a.

Since the rotor vertical position adjusting lever 81 is provided at substantially the center of the vehicle body 2, it is easy to balance left and right when the rotors 27a and 27b are moved up and down.
A rotor housing lever 84 that also serves as a clutch lever is fixed to the beam member 66. When the lever 84 is rotated in the direction of arrow T (FIG. 3), the support arm 67 is interlocked with the rotation of the beam member 66. Also rotates in the direction of arrow T. As the support arm 67 rotates in the direction of arrow T, the rotor support frame 68 moves upward, so that the rotors 27a and 27b are moved to the storage position, that is, to the back side of the seedling stage 51. be able to.

  In this embodiment, the rotors 27a and 27b at a standard position of the rotor vertical position adjusting lever 81 at a height of 40 mm from the field can be rotated up to 15 mm from the standard position by turning in the direction of arrow S in FIG. It is set so that it can be lowered by up to 15 mm from the standard position by turning in the direction opposite to the arrow S direction.

  FIG. 6 is a view for explaining a stop mode of the bent piece 82 of the rotor vertical position adjusting lever 81 and the protruding portion 66a of the beam member 66. FIG. When the rotor 27 is housed, the accommodation space S1 is formed between the protruding portion 66a of the beam member 66 and the bent piece 82 of the rotor vertical position adjusting lever 81. Therefore, the rotor 27 by the rotor vertical position adjusting lever 81 is formed. Even after the height adjustment, the rotor accommodating lever 84 can be operated within the space S1 while maintaining the height adjustment position.

  As another embodiment of the present invention, as shown in the rear view of the main part of the seedling planting part 4 in FIG. 7 and the main part side view of the seedling planting part 4 in FIG. You may employ | adopt the structure provided beside the seedling planting depth lever 80 (not shown in FIG. 8).

  A rotor vertical position adjusting plate 83 having a lever support hole 83a provided with a plurality of steps for locking the rotor vertical position adjusting lever 81 in the vicinity of the seedling planting depth lever 80 and changing the rotor vertical position can be mounted. It is provided on the back side of the table 51. Since the rotor vertical position adjusting lever 81 is provided in the vicinity of the seedling planting depth lever 80, it is necessary to change the rotor height in accordance with the change of the seedling planting depth. A manual operation can be performed so that the operations 80 and 81 are not forgotten to be linked together.

  As shown in the plan view of FIG. 9A and the AA arrow view of FIG. 9A of FIG. 9B, the rotors 27a and 27b for leveling the headland have a relatively long diameter. The disk 27c and the relatively short-diameter cylinder 27d are alternately attached to the drive shaft.

  A description will be given of a configuration in which the disk 27c is sandwiched between the pair of cylinders 27d with reference to FIG. As shown in FIG. 10, a plurality of convex pins 27d1 are provided in the circumferential direction of one side of the cylinder 27d, and a hole 27d2 into which the pin 27d1 is fitted is provided on the other side, and a space between the pair of cylinders 27d is provided. The disk 27c is sandwiched between the two. Since the disk 27c is provided with a hole 27c1 at a position corresponding to the pin 27d1 of the cylinder 27d, the pin 27d1 of the cylinder 27d passes through the hole 27c1 of the disk 27c and is fitted into the hole 27d2 of the other cylinder 27d. Thus, the rotor 27 can be easily configured by fixing the cylinder 27d and the disk 27c.

  In this way, since the plurality of disks 27c sandwiched between the cylinders 27d protrude from the cylinder 27d, the disks 27c remove the impurities in the field when, for example, roughening the field when turning a rice transplanter on a headland. Therefore, the ground leveling performance of the rotor 27 and the seedling planting performance are excellent.

  Further, as shown in FIG. 11, the rotor 27 is formed by combining two cylinders 27d, 27d and one disk 27c as a unit so as to correspond to the size, length, etc. of the foreign matter. You can also. In this way, the rotor 27 is obtained in which the disk 27c can be easily assembled and the disk 27c can be prevented from being damaged.

  As shown in FIG. 12, when the rotor 27 can be moved up and down by the electric motor 63, the shaft of the beam member 66 can be rotated when planting seedlings while leveling the edge with the rotor 27. The switching from the working state of the rotor 27 to the stowed state of the rotor 27 can be automatically performed by the electric motor 63 in conjunction with the raising of the seedling planting unit 4.

  In addition, when a leveling operation is performed on a headland by the rotor 27 by a rotor height adjustment dial provided on a meter panel (not shown) provided in the vicinity of the control seat 31, the rotor 27 is automatically adjusted to a set height. You may make it the structure to carry out.

  Thus, when manually setting the rotor height, the rotor 27 may not be used during the next seedling planting operation while the rotor 27 is moved to the storage position, but the rotor 27 is automatically set to the set height. Such an inconvenience can be prevented by adjusting the configuration.

  Further, as shown in FIG. 1, a rotor cover 37 is provided on the upper rear side of the rotor 27 so that mud is not applied on the floats 55 and 56, but as shown in the side view of FIG. The sensitivity of the angle-of-attack control sensor 57 provided on the center float 55 is adjusted by moving the rotor cover 37 up and down.

  The sensitivity adjustment by the angle-of-attack control sensor 57 adjusts the positional relationship among the center float 55, the seedling planting device 52, and the field scene to adjust the seedling planting depth. Moves the rotor cover 37 downward, and moves the rotor cover 37 upward when the sensitivity is insensitive.

  Of course, the longer the rotor cover 37 is extended, the more mud splashing from the rotor 27 can be prevented. However, the rotor cover 37 is grounded to the soil, thereby making the flow of the muddy water flow backward, causing the muddy water flow. There is a risk of defeating the seedlings of the adjacent strip. Further, if the soil is soft, mud splash from the rotor 27 tends to become intense.

  Therefore, based on the softness of the soil so that an appropriate mud splash preventing effect can be obtained even when the sensitivity of FIG. 13 (b) is insensitive or the sensitivity of FIG. 13 (c) is sensitive. The rotor cover 37 is configured to move up and down in conjunction with the control sensitivity of the elevation control to be set. That is, when the soil is soft and the control sensitivity of the lifting control is set to the sensitive side, the rotor cover 37 is moved down to increase the mud splash prevention effect. Conversely, the soil is hard and the control sensitivity of the lifting control is insensitive. When set to the side, the rotor cover 37 was moved upward to make the muddy water flow easier to flow backward.

  Further, as shown in FIG. 14, when the rotation fulcrum portion 37 a of the rotor cover 37 is attached to the rear portion of the cover 37 and the cover 37 is configured to be rotatable in the arrow U direction by the spring 90, the rotation of the spring 90 is performed. When the fulcrum is exceeded, the rotor cover 37 can be opened and closed with one touch.

Conventionally, when impurities are entangled with the rotor 27, it has been necessary to remove the impurities from the lower side of the rotor 27. Therefore, it is difficult to remove the impurities particularly in the field.
However, as shown in FIG. 14, if the rotor cover 37 can be opened and closed with one touch, the foreign matter can be easily removed, and if the foreign matter is clogged between the rotor 27 and the rotor cover 37, the rotor cover 37 is deformed. However, the configuration of FIG. 14 can easily prevent the rotor cover 37 from being deformed.

Further, as shown in FIG. 15, the rotation support point 37 a of the rotor cover 37 can be opened and closed by the locking tool 79, so that the maintenance of the rotor 27 is facilitated similarly to the configuration shown in FIG. 14.
Further, as shown in FIG. 16, the rotation support point 37a of the rotor cover 37 can be opened and closed by the knob bolt 85, so that the maintenance of the rotor 27 is facilitated similarly to the configuration shown in FIG.

  INDUSTRIAL APPLICABILITY In the present invention, the seedling planting part of the rice transplanter can be configured simply and can be used.

1: with fertilizing device riding rice transplanter, 2: vehicle body, 4: seedling planting unit, 27 (27a, 27b): the rotor, 27c: disk, 27d: cylindrical, 37: rotor cover, 37a: rotating support part , 55: Center float, 57: attack angle control sensor, 81: rotor vertical position adjustment lever, 84: rotor accommodating lever

Claims (4)

Angle-of-attack control sensor (57) for detecting vertical movement of a seedling planting part (4) provided at the rear part of the traveling vehicle body (2) so as to be movable up and down and a center float (55) provided in the seedling planting part (4) And is configured to control the raising and lowering of the seedling planting part (4) so as to maintain the planting depth of the seedling constant based on the detection of the angle-of-attack control sensor (57), with respect to the seedling planting part (4) The ground work device (27) provided so as to be lifted up and down, the lift operation tool (84) provided for raising and lowering the ground work device (27) to the raised non-work position and the lowered work position, and the lift operation A height adjustment operation tool (81) provided for changing and adjusting the height at the work position of the ground work device (27) performed by the tool (84), the height adjustment operation tool (81) A structure capable of operating the lifting operation tool (84) while maintaining the height adjustment of the ground work device (27) by , Seedling planting unit (4) conjunction with ground working device (27) ground work apparatus with a seedling transplantation machine was configured to raise the the non-working position to increase the. The control sensitivity of the raising / lowering control of the seedling planting part (4) can be adjusted, and a cover (37) is provided behind the ground work device (27), and the cover (37) is interlocked with the control sensitivity of the raising / lowering control. The seedling transplanter with a ground work device according to claim 1, wherein the seedling transplanter is configured to move up and down . A cover (37) is provided behind the ground work device (27), and a rotation fulcrum (37a) for opening and closing the cover (37) from the front side is provided at the rear of the cover (37). A seedling transplanter with a ground working device according to claim 2 . The ground work device (27) is provided with a long-diameter disk (27c) and a short-diameter cylinder (27d) as compared with the disk (27c). Seedling transplanter with working device.

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