JP5103261B2 - Transplanter - Google Patents

Description

  The present invention relates to a walking type transplanter for planting seedlings in a cocoon while running across the cocoon.

Conventionally, as a walking type transplanter equipped with a transplanting device for planting seedlings on the heel on the rear side of the traveling body that straddles the heel and equipped with a steering handle on the rear side of the transplanting device, planting seedlings while traveling There is a transplanter disclosed in No. 1.
The traveling body of this transplanter is provided with a front wheel that travels through the intercostal groove and a rear wheel that is located behind the front wheel on both the left and right sides of the traveling body on which the engine is mounted, and the front wheel is supported by the traveling body on one end side. The rear wheel is supported on the other end side of the front wheel support arm, and the rear wheel is supported on the other end side of the transmission case supported on the traveling machine body on one end side. A drive shaft that is driven to rotate about the left and right axes by transmitting power from the engine via a transmission mechanism is provided, and a rear wheel is attached to the drive shaft so as to be integrally rotatable.

The transplanting device is located on the front side of the steering handle and places a seedling tray on which the seedling is grown, and a seedling tray located on the front side of the seedling platform and on the seedling platform. A seedling removal mechanism for taking out the seedling from the seedling, and a planting body that is located on the lower side of the seedling removal mechanism and in which the seedling is planted in the cocoon.
The planted body can be raised and lowered and can be opened and closed. At the top dead center receiving position on the top dead center side of the vertical moving range, the seedling is supplied from the seedling removal mechanism in a closed state, and the seedling is held inside. A planting hole is formed in the cocoon by lowering and entering the cocoon, and a seedling is planted in the cocoon by discharging the seedling into the planting hole.
Japanese Patent Application Laid-Open No. 10-178821

In the field, a single multi-film may be laid across a plurality of ridges. In the vines laid with this multi-film, a predetermined interval in the longitudinal direction of the ridges is used to prevent the multi-films from lifting. The fillet is filled in the furrow groove, so the furrow groove is uneven.
In addition, the embankment may be staggered in the intercostal grooves on the left and right sides of the coral.
Then, when planting work by running the left and right front and rear wheels in the left and right intercostal grooves where the fill is staggered in this uneven state, the transplanter's front and rear and left and right shakes are large, and the planting posture of the seedling is not good. There is a problem in planting accuracy such that the seedling cannot be planted in the center of the multi-hole, or the seedling cannot be planted in the center of the multi-hole formed in the multi-film so as to plant the seedling.

  Then, an object of this invention is to provide the ambulatory type transplanter which solved the said problem.

The technical means taken by the present invention in order to solve the technical problem described above is a walking type transplanter including a traveling body that travels across a heel, a transplant device for planting seedlings on the heel, and a steering handle. Because
The traveling body is provided with a crawler type traveling device that travels in the groove between the left and right sides of the traveling machine body on which the engine is mounted, and this crawler type traveling device is disposed on the other end side of the transmission case that is supported by the traveling body. A drive shaft supported by the other end of the transmission case is transmitted to the power transmission mechanism in the transmission case and rotated about the left and right axis, and below the drive shaft. The crawler type traveling device includes a drive wheel that rotates integrally with the drive shaft, and front and rear idlers that are positioned below the drive wheel. A roller wheel positioned between the front and rear idlers, an endless belt-like crawler belt wound around the drive wheel, the front and rear idlers and the wheel, and an upper portion supported by the swing support shaft so as to be swingable about an axis. To the front and back idler DOO is a swing frame which is rotatably supported on the left and right axis,
One end side of each of the left and right transmission cases is supported by the traveling machine body through a case support that can expand and contract in the left and right directions, and the drive shaft and the swing support shaft are inward in the left and right directions on the other end sides of the left and right transmission cases. toward the left and right crawler type traveling device provided in the protruding shape is characterized that you have provided in the lateral inward side of the transmission case.

The swing frame is provided with a checker positioned above the swing support shaft, and a shaft holder for supporting the drive shaft is provided on the other end side of the transmission case so that the checker faces upward. The shaft holder has an open U-shape when viewed from the side. The shaft holder is inserted inside the checker, and the shaft holder comes into contact with the front and rear walls of the checker to swing the swing frame. around the support shaft of the swing may be configured to be regulated.
In addition, front wheels that run through the intercostal grooves are provided on the front side of each of the left and right crawler type traveling devices, and each of the left and right front wheels has a front wheel support in which one end side is rotatably supported around the axis of the left and right direction by the traveling body. Supported on the other end of the arm,
Each case support includes an attachment member fixed to the traveling machine body, and a left-right axis around the attachment member.
An outer cylinder that is rotatably supported on the outer cylinder, and an inner cylinder that is inserted into the outer cylinder so as to be rotatable integrally with the outer cylinder and that can be moved to the left and right, and is fixed to one end of the transmission case.
The outer cylinder is interlocked and connected to the front wheel support arm via an interlocking link, and the left and right front wheel support arms and the left and right transmission cases are swung up and down around the support portion on one end side to thereby move the left and right front wheels and the left and right crawler type traveling devices. the vehicle body by moving up and down with respect to the traveling machine body may be configured to lift.

According to the present invention, since the crawler type traveling device is grounded between the front idler and the rear idler, the ground contact length is longer than that of the wheel, and the front and rear idlers and the wheels follow the unevenness of the ground together with the swing frame. It swings around the swing spindle.
Therefore, when the crawler type traveling device gets over the embankment (cove) provided in the intercostal groove, the front and rear idlers and the wheels swing around the rocking support shaft together with the rocking frame to follow the banking and to the wheels. Compared to climbing longer distances and lowering distances, the traveling aircraft slowly moves up and down, so that the movement of the transplanter's shaking caused by traveling in places with embankments can be made slower. .

  Thereby, the seedling planting accuracy can be improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIGS. 1 and 2, reference numeral 1 denotes a walking type transplanter for planting soil block seedlings 2 such as vegetables at predetermined intervals while moving in the longitudinal direction of the ridge R.
The transplanter 1 includes a traveling body 3 that travels in the longitudinal direction of the heel R across the heel R, a transplant device 4 provided on the rear side of the traveling body 3, and a support frame that supports the transplant device 4. 5, a steering handle 7 that steers the traveling body 3, and a spare seedling table 8 for placing a spare seedling tray T including the seedlings 2 that have been grown.

The seedling tray T is made of plastic, has a thin wall, has flexibility, and includes a large number of pot portions P arranged in a grid pattern at a predetermined pitch in the vertical and horizontal directions. The parts are connected to each other by a flat thin wall part.
In this seedling tray T, soil block seedlings 2 that have been sown and grown on the floor soil supplied to each pot portion P are grown.
1 to 4, the traveling body 3 includes a traveling body 9, a propulsion mechanism 10 that supports the traveling body 9 so that the traveling body 9 can travel, an engine 11 mounted on the traveling body 9, and the like.

The traveling machine body 9 includes a transmission case 12 and a base 13 attached and fixed to the front portion of the transmission case 12 so as to protrude forward from the transmission case 12.
The engine 11 is mounted on the front part on the gantry 13.
The propulsion mechanism 10 is a wheel / crawler having a pair of left and right front wheels 14 (wheel, front infinite rotator) and a pair of left and right crawler belts 15 (rear infinite rotator) as an infinite rotator that rotates by rotating the intercostal groove M. A combined type infinite rotation propulsion mechanism is adopted.
The propulsion mechanism 10 includes a front wheel 14, a front wheel support arm 17 that supports the front wheel 14, a crawler traveling device 18 that is disposed on the rear side of the front wheel 14, and a transmission case 19 that supports the crawler traveling device 18. Are provided on both the left and right sides of the traveling machine body 9.

Each of the left and right front wheel support arms 17 is arranged in an inclined shape so as to move downward as it goes rearward, and a hexagonal cylindrical fixture having a left and right axis on the front end side (upper end side) of each front wheel support arm 17. 20 is provided, and on the rear end side (lower end side) of each front wheel support arm 17, the front wheel 14 is around the axis in the left-right direction (or around the axis in the tilt direction in which it moves upward as it goes inward in the left-right direction). It is supported rotatably.
A cylindrical shaft support 22 having a left and right axis is provided on the front end side of the gantry 13, and the left and right directions of a pair of left and right front wheel support shafts 23 having a left and right axis are provided on the shaft support 22. The inner end side is inserted, and the left and right front wheel support shafts 23 are supported by the shaft support 22 so as to be rotatable around the left and right axis.

The left and right outer end sides of the left and right front wheel support shafts 23 are arm attachment portions 24 formed of hexagonal cylinders having left and right axial cores. The front wheels on the same side in the left and right directions are located on the arm attachment portions 24. The front wheel support arm 17 is supported by the shaft support 22 so as to be swingable up and down around the axis of the front wheel support shaft 23 by fitting the fixture 20 of the support arm 17 so as to be integrally rotatable.
The left and right transmission cases 19 are arranged so as to extend rearward from the side surface of the transmission case 12, and the front end side of each transmission case 19 is connected to the side surface of the transmission case 12 via the case support 25 in the left-right direction. The transmission case 19 is supported so as to be pivotable about the axis, and the transmission case 19 can swing up and down.

Further, the position of the fixture 20 in the left-right direction with respect to the arm attachment portion 17 is freely changeable. By changing the position of the attachment 20 in the left-right direction with respect to the arm attachment portion 17, the tread of the front wheel 14 can be adjusted. It is said that.
As shown in FIGS. 5 and 6, the left and right case supports 25 include an attachment member 26 fixed to the side surface of the mission case 12, an outer cylinder 27 supported by the attachment member 26, and the outer cylinder 27. And an inner cylinder 28 inserted through the inner cylinder 28.
The mounting member 26 includes a flange 26A that is bolted to the side surface of the mission case 12, and a cylindrical rotation support portion 26B that has a horizontal axis that protrudes outward in the horizontal direction from the flange 26A. Yes.

The outer cylinder 27 includes a hexagonal cylindrical outer cylinder body 27A having a left and right axial core, and a cylindrical section 27B that is externally fitted around the rotational support section 26B of the mounting member 26 so as to be rotatable about the axis. The outer cylinder 27 is rotatably supported by the attachment member 26.
Further, the midway portion in the left-right direction of the outer cylinder 27 is supported by a bearing device 30 attached to a bearing frame 29 fixed to the transmission case 12 so as to be rotatable around the axis.
The inner cylinder 28 is externally extended from a left and right outer end of the main body portion 28A and a main body portion 28A that is integrally fitted to the outer cylinder main body 27A so as to be rotatable around the axis and movable in the axial direction. The cylindrical portion 28B, and a flange 28C fixed to the inner end side in the left-right direction of the cylindrical portion 28B.

On the other hand, a cylindrical shaft holder 31 having a left and right axial core is fixed to the left and right sides of the front portion of the transmission case 19, and a flange 32 is provided at the inner end in the left and right direction of the shaft holder 31 on the inner side in the left and right direction. The cylindrical portion 28B of the inner cylinder 28 is inserted into the shaft holder 31 on the inner side in the left-right direction, and the flange 28C provided on the inner cylinder 28 is bolted to the flange 32 of the shaft holder 31.
Thus, the front portion of the transmission case 19 is supported on the side surface of the transmission case 12 via the case support 25 around the left and right axis.

Further, the outer cylinder 27 and the inner cylinder 28 are, for example, relatively moved in the left-right direction by a bolt that is screwed into a nut member 33 fixed to the outer cylinder 27 and penetrates the outer cylinder 27 and contacts the inner cylinder 28. And the relative movement in the left-right direction between the outer cylinder 27 and the inner cylinder 28 is allowed by loosening the bolts, thereby adjusting the tread of the left and right crawler type traveling devices 18. Is possible.
Further, the mission case 12 is provided with a pair of left and right output shafts 34 protruding outward in the left-right direction from the left and right side surfaces, and the left and right output shafts 34 are attached to the case support 25 on the same side in the left-right direction. And the inner cylinder 28 is inserted.

The left and right inner ends of the left and right output shafts 34 are abutted in the left-right direction in the transmission case 12, and a transmission gear 35 is fitted around the abutting portion so as to be rotatable around the axis in the left-right direction. The power from the engine 11 is transmitted to the transmission gear 35 via a power transmission mechanism, and the power is intermittently transmitted from the transmission gear 35 to the left and right output shafts 34 via the left and right clutch devices 36. It is comprised so that.
On the other hand, an input shaft 37 is provided at the front portion of the transmission case 19 and is inserted through the left and right shaft holders 31 and supported by the left and right shaft holders 31 so as to be rotatable about the left and right axis around the bearings. ing.

The output shaft 34 and the input shaft 37 are connected by a connecting shaft 38 so as to be integrally rotatable.
The connecting shaft 38 includes an inner spline cylinder 38A that is spline-fitted to the output shaft 34, an outer spline cylinder 38B that is spline-fitted to the input shaft 37, and a connecting cylinder portion 38C that connects the spline cylinders 38A and 38B. By this, it is comprised so that it can respond to the tread adjustment of the crawler type traveling device 18.
Cylindrical shaft holders 39 are fixed to the left and right sides of the rear end side of each of the left and right transmission cases 19, and a drive shaft 41 for driving the crawler type traveling device 18 is inserted through the left and right shaft holders 39. Reference numeral 41 is supported by the left and right shaft holders 39 so as to be rotatable around the axis in the left-right direction via bearings.

The drive shaft 41 protrudes inward in the left-right direction from a shaft holder 39 (engagement portion) on the inner side in the left-right direction.
A drive-side gear 42 is provided so as to be rotatable integrally with the input shaft 37 provided on the front side of the transmission case 19, and the drive shaft 41 provided on the rear side of the transmission case 19. A driven gear 43 is rotatably provided in the middle in the left-right direction, and an endless chain 44 is wound around the driving gear 42 and the driven gear 43 and transmitted to the input shaft 37. The generated power is transmitted to the drive shaft 41 through the drive side gear 42 → the chain 44 → the driven side gear 43, and the drive shaft 41 is rotationally driven by the power from the engine 11.

In addition, you may employ | adopt power transmission mechanisms other than a chain transmission mechanism.
Further, shaft mounting brackets 45 are provided on both the left and right sides of the rear end side of the transmission case 19 so as to protrude downward, and a swing support shaft 46 having a left and right axial core is fixed to the lower portion of the shaft mounting bracket 45. Has been.
The swing support shaft 46 is fixed to the shaft mounting bracket 45 through the left and right shaft mounting brackets 45 on the outer end side in the left and right direction, and the swing support shaft 46 faces inward in the left and right direction. It is provided in a protruding shape.

As shown in FIGS. 7, 8, and 9, the crawler type traveling device 18 includes an upper drive wheel 47, a front idler 48 disposed on the front side and the lower side of the drive wheel 47, A rear idler 49 disposed on the rear side and the lower side, a plurality of wheels 50 disposed between the front and rear idlers 48, 49, and the drive wheels 47, the front and rear idlers 48, 49, and the wheels 50 are wound around. And the crawler belt 15 having an endless belt shape.
The drive wheel 47 is attached and fixed to the drive shaft 41 provided on the rear end side of the transmission case 19 so as to be integrally rotatable, and the drive wheel 47 is rotationally driven when the drive shaft 41 is rotationally driven. Thus, the crawler belt 15 engaged with the drive wheel 47 is circulated and rotated (rotated) in the circumferential direction (longitudinal direction), and the crawler traveling device 18 is configured to move forward or backward.

The front and rear idlers 48, 49 and the wheel 50 are supported on the lower side of the swing frame 51 so as to be rotatable around the left and right axis, and the upper side of the swing frame 51 is below the drive shaft 41. Are supported on the swing support shaft 46 so as to be rotatable about the axis.
In the present embodiment, the distance in the front-rear direction of the front idler 48 with respect to the drive wheel 47 is configured to be slightly longer than the distance in the front-rear direction of the rear idler 49 with respect to the drive wheel 47.
The swing frame 51 includes a pair of left and right main plates 52 and a support cylinder 53 provided on the upper portion of the main plate 52.

The support cylinder 53 has an axial core in the left-right direction and penetrates the upper part of the left and right main plates 52.
The main plate 52 on the outer side in the left-right direction is fixed by welding to the support cylinder 53, and the main plate 52 on the inner side in the left-right direction is bolted to a mounting plate 54 provided on the inner end side in the left-right direction of the support cylinder 53.
In the support cylinder 53, the inner side in the left-right direction of the swing support shaft 46 is rotatably inserted around the left and right shafts to prevent the swing frame 51 from being pivoted. It is supported so that it can swing back and forth.

An extension part 55 extending upward from both front and rear sides is provided on the upper part of the main plate 52 on the outer side in the left-right direction, and a checker 56 is fixed to the extension part 55, and is transmitted to the checker 56. The swinging range of the swinging frame 51 is regulated by engaging (contacting) the shaft holder 39 on the rear side of the case 19 in the left-right direction.
The checker 56 is formed by bending the plate material into an open U-shape on the upper side in a side view, and includes front and rear walls 57 and 58 and a bottom wall 59.
The extending portion 55 of the main plate 52 on the outer side in the left-right direction is fixed to the inner end side in the left-right direction of the checker 56, and the upper portion of the reinforcing plate 60 is fixed to the outer end side in the left-right direction of the checker 56. The lower part of the plate 60 is fixed to the support cylinder 53 of the swing frame 51.

Inside the checker 56 (between the front and rear wall portions 57, 58), a shaft holder 39 on the inner side in the left-right direction of the rear portion of the transmission case 19 is provided.
When the rear wall 58 of the checker 56 comes into contact with the shaft holder 39, the forward swing of the swing frame 51 is restricted, and the front wall 57 of the checker 56 comes into contact with the shaft holder 39. The rearward swing of the swing frame 51 is restricted, and the rear wall 58 of the checker 56 before the forward swing around the swing support shaft 46 of the swing frame 51 is restricted. The front wall 57 of the checker 56 is a rearward restricting part that restricts the rearward swinging of the swinging frame 51 around the swinging support shaft 46.

The rear portions of the left and right main plates 52 are connected by a connecting plate 61.
Further, the front and rear idlers 49 and the wheels 50 are rotatably supported via support shafts 62, 63, and 64 that are disposed between the left and right main plates 52 and have axial centers in the left and right directions.
Support members 65 are provided on both the left and right sides of the support shaft 62 that supports the front idler 48, and the left and right support members 65 are supported by guide holes 66 formed in the left and right main plates 52 so as to be movable back and forth. Has been.
The left and right support members 65 are fixed to the front lower part of the left and right side walls 67a of the movable bracket 67 disposed between the left and right main plates 52, and the movable bracket 67 connects the rear end side of the left and right side walls 67a. The adjusting bolt 68 is fixed to the rear wall 67b as a protruding shape rearward.

A fixed bracket 69 is disposed behind the rear wall 67b of the movable bracket 67. The fixed bracket 69 has left and right side walls 69a and a front wall 69b that connects the front ends of the side walls 69a.
The fixing bracket 69 is disposed between the left and right main plates 52, and its side wall 69a is fixed to the main plate 52, and the adjustment bolt 68 is inserted through the front wall 57 of the fixing bracket 69 so as to be movable in the axial direction. ing.
Further, an adjustment nut 70 positioned on the front side of the front wall 69 b of the fixing bracket 69 and a lock nut 71 positioned on the front side of the adjustment nut 70 are screwed into the adjustment bolt 68.

Therefore, when the adjustment nut 70 is tightened, the movable bracket 67 is moved forward, and when the movable plate 67 is moved forward, the front idler 48 is pressed against the crawler belt 15 to give tension to the crawler belt 15. It is configured as follows.
Each of the left and right front wheel support shafts 23 is provided with a front bracket 72 protruding upward, and the outer cylinder 27 of each of the left and right case supports 25 is provided with a rear bracket 73 protruding upward. The front and rear brackets 72, 73 on the same side in the left-right direction are interlocked and connected by an interlocking link 74.

Further, a shaft support 76 having a left and right axial core is supported in a front and rear direction guide groove 75 formed on both left and right sides of the mount 13 of the traveling machine body 9 so as to be movable in the front and rear direction. Is inserted so as to protrude from both the left and right sides, and the rolling shaft 77 is supported by the shaft support 76 so as to be rotatable around the axis in the left-right direction.
An upper lever 78 that protrudes upward is provided on one of the left and right sides of the rolling shaft 77, and a lower lever 79 that protrudes downward is provided on the other left and right sides of the rolling shaft 77. , 79 and the upper and lower levers 78, 79 and the rear bracket 73 on the same side in the left-right direction are interlocked and connected by a connecting link 80.

Further, the gantry 13 is provided with an elevating cylinder 81 and a rolling cylinder 82, and the elevating cylinder 81 and the rolling cylinder 82 are constituted by hydraulic cylinders.
The tube 81 a of the elevating cylinder 81 is fixed to the gantry 13, and the piston rod 81 b protrudes rearward and is connected to the shaft support 76.
Further, the tube 82a of the rolling cylinder 82 is supported by the gantry 13 so as to be rotatable about the left and right axes around the pivot portion 83 on the front side, and the piston rod 82b protrudes toward the rear side. It is pivotally attached to an arm 84 provided so as to protrude downward on the left side.

When the piston rod 81b of the elevating cylinder 81 is advanced and retracted, the shaft support 76 and the rolling shaft 77 move back and forth, and the left and right rear brackets 73 are pushed and pulled by the left and right connecting links 80, and the left and right transmission cases 19 are moved up and down. The left and right front brackets 72 are pushed and pulled by the left and right interlocking links 74 and the left and right front wheel support arms 17 swing up and down together (in conjunction with the vertical swinging of the left and right transmission cases 19). The left and right front wheel support arms 17 swing up and down).
As a result, the left and right front wheels 14 and the left and right crawler type traveling devices 18 simultaneously move up and down relative to the traveling machine body 9 and the front wheels 14 and the crawler belt 15 are inevitably grounded. The traveling machine body 9 is configured to move up and down with respect to the ground plane.

Further, when the piston rod 82b of the rolling cylinder 82 is advanced and retracted, the rolling shaft 77 is rotated so that one connection link 80 pushes one rear bracket 73 and the other connection link 80 moves the other rear bracket 73. To move.
As a result, the left and right front wheels 14 and the crawler type traveling device 18 are raised relative to the traveling machine body 9, and the left and right other front wheels 14 and the crawler type traveling device 18 are lowered relative to the traveling machine body 9. And it is comprised so that the inclination with respect to the left-right direction of the traveling body 9 can be corrected.

The support frame 5 has a pair of left and right main frames 85, and the left and right main frames 85 are connected to each other by a connecting plate 86 on the front side and are fixedly attached to the rear upper side of the transmission case 12.
The main frame 85 extends rearward from the mission case 12 and extends upward on the rear end side.
The steering handle 7 is formed in a substantially U-shape that is open toward the front in a plan view, and the front end sides of the left and right sides are connected to the left and right main frames 85.

In the field, multi-films are laid over a plurality of ridges R, and in the inter-groove grooves M, embankments 87 for preventing the multi-films from rising are provided at predetermined intervals in the longitudinal direction of the ridges R.
The embankment 87 is provided at the same position in the front-rear direction in the inter-groove grooves M on both the left and right sides of the reed R, or is staggered by being displaced in the front-rear direction.
The transplanting device 4 is supplied from a seedling placing stand 91 for placing and supporting the seedling tray T, a seedling taking out device 92 for taking out the seedling 2 from the seedling tray T on the seedling placing stand 91, and the seedling taking out device 92. A multi-hole is formed in a planted body 93 for planting the seedling 2 on the ridge R, a pressure-reducing wheel 94 (covering ring) for suppressing the left and right sides of the seedling 2 planted on the ridge R, and a multi-film laid on the field. And a perforated body 95.

The seedling mount 91 is located on the front side of the steering handle 7 and is provided in an inclined shape so as to move downward as it goes forward, so that the bottom of the seedling tray T is placed and supports the seedling tray T. And a pair of front and rear slide rails 97 provided on the rear side of the support frame 5 so as to be movable in the left-right direction.
Further, the seedling table 91 can be intermittently reciprocated in the horizontal direction by one pitch in the horizontal direction of the pot portion P of the seedling tray T by the horizontal feeding mechanism. A vertical feed mechanism that vertically feeds the seedling tray T downward by one pitch in the vertical direction of the pot portion P is provided at both left and right ends of the lateral movement area.

The seedling extraction device 92 includes a seedling extraction claw 98 that extracts the seedling 2 from the pot portion P, and a movement mechanism that is driven by the power from the engine 11 to operate the seedling extraction claw 98. On the other hand, the seedling extraction claw 98 is advanced from the front side to pierce the floor soil, and after the piercing, the seedling extraction claw 98 is retracted so that the seedling 2 can be taken out from the pot portion P.
In addition, the seedling 2 taken out from the pot portion P can be transferred above the planted body 93 located at the seedling receiving position and released to the planted body 93.

The planted body 93 has an open upper end so that the seedling 2 can be supplied from above, and a lower portion can be opened and closed so that the seedling 2 can be held inside and the seedling 2 can be released downward. It is supported by an elevating mechanism attached to the airframe 9 so as to be movable up and down.
The planted body 93 is supplied with the seedling 2 from the seedling extraction device 92 in a closed state at the top dead center in the vertical movement range or in the vicinity of the seedling receiving position, and descends while holding the seedling 2 inside. By entering and opening the heel R on the bottom dead center side of the moving range, a planting hole is formed in the heel R and the seedling 2 is discharged into the planting hole, whereby the seedling 2 is planted in the heel R.

A pair of left and right pressure wheels 94 is provided, and rolls on both the left and right sides of the planting position of the seedling 2 on the upper surface of the heel R, and presses the soil on both the left and right sides of the seedling 2 that has been put into the planting hole.
The perforated body 95 is supported by the traveling machine body through a support mechanism so as to be able to move up and down. The perforated body 95 is disposed on the front side of the planting body 93 and descends to come into contact with the multifilm. By melting (or punching out the multi-film), a multi-hole for planting the seedling 2 (for allowing the planted body 93 to enter the ridge R) is formed in the multi-film.
The planting body 93 penetrates the multi-hole drilled in the multi-film and enters the ridge R.

In addition, when the multi-hole is previously formed in the multi film, or when the cutter for breaking the multi film is provided in the planting body, the perforated body 95 is unnecessary.
FIGS. 1 and 3 show a state in which the transplanter 1 is in a planting posture in which the seedling 2 is planted on the heel R. At this time, the shaft holder 39 on the inner side of the rear side of the transmission case 19 is arranged in front of and behind the checker 56. The swing support shaft 46 is set so as to be positioned substantially at the center between the walls 57 and 58 and at a position substantially directly below the drive shaft 41.
In this planting posture, the planted body 93 is located between the left and right crawler type traveling devices 18 and in the vicinity of the swing support shaft 46 in the front-rear direction (in this embodiment, behind the swing support shaft 46). Between the rear idlers 49 on the side).

When the wheel 99 travels in the intercostal groove M provided with the embankment 87, as shown in FIG. 10 (a), the wheel 99 descends completely from the embankment 87 and then goes up to the embankment 87. The vertical movement of the machine 1) is relatively large, and the wheel 99 climbs to the fill 87 at a relatively short distance and descends from the fill 87 at a relatively short distance, so that the planting caused by the wheel 99 getting over the fill 87 is planted. The fluctuation of the attached body is large.
Further, when the fill 87 is provided in a staggered manner in the intercostal grooves M on the left and right sides of the ridge R, the left and right sway is also large.

  On the other hand, when the crawler type traveling device 18 travels in the intercostal groove M provided with the embankment 87, the crawler type traveling device 18 is grounded between the front idler 48 and the rear idler 49, so that it is compared with the wheel 99. Since the ground contact length is long, and the front and rear idlers 49 and the wheels 50 follow the unevenness of the ground together with the swing frame 51 and swing around the swing support shaft 46, as shown in FIG. When the crawler type traveling device 18 gets over the embankment 87 (cove) provided in the intercostal groove M, the crawler type traveling device 18 rises over a longer distance than the wheel 99 and descends over a longer distance. For this reason, the movement of the back and forth, right and left of the transplanter 1 due to the presence of the embankment 87 can be made slow, and the planted body 93 caused by the crawler type traveling device 18 getting over the embankment 87. Change is small.

In particular, in the present embodiment, in the planting posture of the seedling 2, the planted body 93 is positioned between the left and right crawler type traveling devices 18 and in the vicinity of the swing support shaft 46 in the front-rear direction. The planted body 93 can reduce the vertical movement and the forward / backward tilt movement caused by the shaking of the traveling machine body 9 as much as possible, and the planting accuracy of the seedling 2 can be improved.
Moreover, although the moving height H1 when it goes up to the embankment 87 from the place where there is no embankment 87 does not change with the wheel 99 and the crawler type traveling device 18, the embedding 87 has a predetermined interval in the longitudinal direction of the ridge R. In the case of being continuous, the wheel 99 is completely lowered from the embankment 87 once before reaching the next embankment 87 after climbing the embankment 87, so that the traveling machine body 9 moves up and down greatly. In the traveling device 18, since the front portion starts to rise to the next fill 87 in a state where the rear portion is positioned on the fill 87, the vertical movement height H <b> 2 is smaller than that of the wheel 99 ( ½ level), the shaking of the traveling machine body 9 due to the unevenness of the embankment 87 can be greatly reduced.

Therefore, the contact length of the crawler type traveling device 18 is usually formed to be larger than the interval W between the embankments 87.
Further, in the case where the front and rear idlers 49 and the wheels 50 are swingable together with the swing frame 51 around the swing support shaft 46, the swing frame 51 swings and crawlers when getting over the embankment 87. Although the ground contact portion of the belt 15 is inclined with respect to the ground, the embankment 87 cannot be smoothly moved over when the belt 15 is relatively inclined, but in the present invention, the swing frame 51 swings around the swing support shaft 46. Since the restraining checker 56 is provided, the grounding part of the crawler belt 15 is not greatly inclined with respect to the ground because the restraining member 56 restricts the swinging of the swinging frame 51 when getting over the hard embankment 87. Therefore, it is possible to smoothly get over the upper surface of the embankment 87.

Further, when traveling on a concave ground, if the checker 56 is not provided, it will be caught in the dent, but in this embodiment, the swinging of the swing frame 51 is restricted by the checker 56. It is possible to prevent it from being caught in.
For traveling on the road moving from or to the field, the traveling machine body 9 is raised to the highest position. At this time, as the transmission case 19 is swung downward, the shaft holder 39 moves the checker 56. After approaching and contacting the rear wall 58 and the shaft holder 39 contacting the back wall 58 of the checker 56, the swing of the swing frame 51 is restricted, and the crawler is moved as the transmission case 19 swings downward. As shown in FIGS. 11 and 12, the front part of the traveling device 18 is lifted.

As a result, the crawler type traveling device 18 is brought into a one-point grounding state (the grounding length is greatly reduced) and can be comfortably traveled on the road.
Further, when the transplanter 1 is turned on the headland or the like, the steering handle 7 is pushed down in this highest state, and the front portion of the transplanter 1 is raised around the ground contact portion of the crawler type traveling device 18. The front wheel 14 floats from the grounding surface and turns, but when the traveling machine body 9 is in the highest position, the crawler type traveling device 18 is lifted on the front side and is in a single point grounded state on the rear side. Even if the crawler-type traveling device 18 in which the front and rear idlers 48 and 49 and the wheel 50 are swung around the swing support shaft 46 is adopted on the rear side of the front wheel 14, it is easy to lift the front wheel 14. By providing 56, it can be swung in a one-point grounding state.

In addition, a heavy transplanter 4 is provided on the rear side of the transplanter 1. However, in this embodiment, the crawler traveling device 18 is used instead of the rear wheel. Is widely dispersed and has a low ground pressure, and does not step on the fill 87 and does not collapse the fill 87.
Moreover, there is an advantage that the multi-film is not pulled and the multi-film is not broken.
FIG.13 and FIG.14 has shown the transplanter 1 of the other form.
When the transmission case 19 is swung up and down, the shaft holder 39 approaches one of the front and rear walls 57 and 58 of the checker 56. Therefore, when the seedling 2 is planted on the ridge R having a height different from that of the above embodiment. This means that the shaft holder 39 inside the rear part of the transmission case 19 is displaced from the center between the front and rear walls 57 and 58 of the restraining device 56 (not at the center), and the swing frame 51 is swung forward and backward. The swing range of the swing will be different.

Therefore, in the transplanter 1 of this embodiment, the position around the swing support shaft 46 of the checker 56 with respect to the shaft holder 39 is adjustable.
In the transplanter 1 of this form, the adjustment plate 101 to which the checker 56 is fixed is supported on the support cylinder 53 so as to be rotatable around the axis and relative to the swing frame 51. The bolt 102 is fixed to the swing frame 51 so as to rotate integrally with the swing frame 51, and the bolt insertion hole provided in one of the adjustment plate 101 or the swing frame 51 is a circular hole. The bolt insertion hole 103 provided on one side of the moving frame 51 is an arc-shaped hole centered on the axis of the swing support shaft 46.

Accordingly, by loosening the fastening of the bolts 102, the adjustment plate 101 can be rotated around the swing support shaft 46 with respect to the swing frame 51, and the restraining tool can be rotated around the swing support shaft 46 with respect to the shaft holder 39. The position of 56 can be adjusted, and the shaft holder 39 can be positioned at the center between the front and rear walls 57 and 58 of the checker 56 with respect to the rods R having different heights.
FIG. 13 shows the case where the height of the traveling machine body 9 is set on the high heel R (when the seedling 2 is planted on the high heel R), and FIG. 14 sets the height of the traveling machine body 9 on the lower heel R (flat heel). (In the case where the seedling 2 is planted in a low ridge R).

In addition, by attaching the alignment mark so that the position of the checker 56 can be adjusted to an appropriate position according to the height of the heel R, the traveling body 9 does not have to be actually matched to the height of the heel R. From now on, it is possible to adjust the checker 56 according to the height of the ridge R to be planted.
Other configurations are substantially the same as those of the above embodiment.

It is a whole side view of a transplant machine. It is a plane schematic diagram of a transplanter. It is a side view of a traveling body. It is a top view of a traveling body. It is a back sectional view of a power transmission system of a crawler type traveling device. It is a back sectional view showing the support structure of a transmission case, and a power transmission system. It is a back sectional view showing the support structure and power transmission system of a crawler type traveling device. It is a side view of a crawler type traveling device. (A) is a top sectional view of a crawler type traveling device, and (b) is a side view of a transmission case. (A) is a schematic side view showing the case where the wheel gets over the embankment, and (b) is a schematic side view showing the case where the crawler type traveling device gets over the embankment. It is a side view of the transplanter when the traveling machine body is in the highest position. It is a side view of a traveling body when a traveling body is made into the highest position. It is a schematic side view of the traveling body in the case of showing a transplanter in a form in which the position of the check tool can be adjusted with respect to the shaft holder and planting a seedling in a high ridge. It is a schematic side view of a traveling body in the case of showing a transplanter in a form in which the position of a check tool can be adjusted with respect to a shaft holder, and planting a seedling in a low ridge.

Explanation of symbols

2 seedling 3 traveling body 4 transplanting device 7 steering handle 9 traveling body 11 engine 14 front wheel 15 crawler belt 17 front wheel support arm 18 crawler traveling device 19 transmission case 39 shaft holder 41 drive shaft 46 swing support shaft 47 drive wheel 48 front Idler 49 Rear idler 50 Roller wheel 51 Swing frame 56 Checking device 57 Front wall 58 Rear wall M Intercostal groove R

Claims (3)

A walking type transplanter equipped with a traveling body (3) that travels across the heel (R), a transplant device (4) for planting a seedling (2) on the heel (R), and a steering handle (7). There,
Traveling body (3) is on the left and right sides of the engine (11) traveling machine body which is mounted (9), provided with a crawler type traveling device (18) that travels furrow groove (M), left and right crawler type traveling device ( 18) is supported at the other end of the transmission case (19) supported at one end by the traveling machine body (9), and the power transmission within the transmission case (19) is performed at the other end of the transmission case (19). A drive shaft (41) to which power from the engine (11) is transmitted via a mechanism and driven to rotate about the left and right axis, and a left and right axial core disposed below the drive shaft (41). The crawler type traveling device (18) is provided with a swing support shaft (46), the drive wheel (47) rotating integrally with the drive shaft (41), and a position below the drive wheel (47). The front and rear idlers (48, 49) and the front and rear idlers (48, 49) A crawler belt (15) wound around the wheel (50) positioned at the drive wheel (47), the front and rear idlers (48, 49) and the wheel (50), and the upper portion of the crawler belt (15). A swing frame (51) is supported on the shaft (46) so as to be swingable around the axis, and has a front and rear idlers (48, 49) and a wheel (50) rotatably supported on the left and right axes. Prepared ,
One end side of each of the left and right transmission cases (19) is supported by the traveling machine body (9) via a case support body (25) that can expand and contract in the left-right direction, and the drive shaft (41) and the swing support shaft (46). Is provided on the other end of each of the left and right transmission cases (19) so as to project inward in the left-right direction, and the left and right crawler type traveling devices (18) are provided on the inner side in the left-right direction of the transmission case (19). transplanter which is characterized that you have been.   The swing frame (51) is provided with a checker (56) located above the swing support shaft (46), and the drive shaft (41) is supported on the other end of the transmission case (19). A shaft holder (39) is provided, and the checker (56) is formed in a U-shape in an open side view upward, and the shaft holder (39) is inserted inside the checker (56). Then, the shaft holder (39) contacts the front and rear walls (57, 58) of the restraining device (56), thereby restricting the swing of the swing frame (51) around the swing support shaft (46). The transplanter according to claim 1, wherein the transplanter is configured as described above. A front wheel (14) that travels in the intercostal groove (M) is provided on the front side of each of the left and right crawler type traveling devices (18), and one end of each of the left and right front wheels (14) is disposed in the left- right direction on the traveling machine body (9) . Supported on the other end side of the front wheel support arm (17) supported so as to be rotatable around the axis ;
Each case support (25) includes an attachment member (26) fixed to the traveling machine body (9), and an outer cylinder (27) supported by the attachment member (26) so as to be rotatable about the left and right axes. And an inner cylinder (28) that is inserted into the outer cylinder (27) so as to be integrally rotatable and horizontally movable, and is fixed to one end of the transmission case (19).
The outer cylinder (27) is interlocked and connected to the front wheel support arm (17) via the interlock link (74), and the left and right front wheel support arms (17) and the left and right transmission cases (19) are arranged around the support portion on one end side. the vehicle body by moving up and down the left and right front wheels (14) and left and right crawler type traveling device up and down swing (18) with respect to the traveling machine body (9) (9) is configured to lift The transplanter according to claim 1 or 2.

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