JPH08130931A - Seedling transplanter - Google Patents

Abstract

PURPOSE: To provide a seedling transplanter capable of carrying out furrow opening operation and seedling transplanting operation, having improved operation efficiency by equipping a traveling machine body with a seedling feeder, a rotary tilling part, etc. CONSTITUTION: This seedling transplanter is constituted by attaching a rotary tilling part 7 for forming a furrow M to the front part of a traveling machine body 1 propelled by right and left traveling wheels 4 and 5, equipping the longitudinal middle part of the traveling machine body 1 with an engine 18, a transmission case, a seedling feeder 3 for supplying pot seedlings for long root Welsh onion arranged in a matrix state to a seedling tray, a delivering mechanism 29 furnished with seedling taking out pawl 60 to transplant the pot seedlings from the seedling feeder 3 in a field and a transplanting mechanism 30 furnished with a vertically movable transplanting cup 32 and vertically movably attaching a pair of a right and a left soil covering wheels 6 to cover the transplanted part in the furrow M with soil behind the transplanting mechanism 30 to the rear of the traveling machine body 1. Preferably power is transmitted from the output shaft of the engine 18 through an endless belt to the input shaft of the rotary tilling part 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a seedling transplanter for digging a groove for transplantation in a field and transplanting seedlings for deep root onion along the groove.

[0002]

2. Description of the Related Art Conventionally, the applicant previously proposed in Japanese Utility Model Publication No. 5-95229 as a seedling transplanter for transplanting seedlings such as vegetables into a field by a seedling transplanter equipped with one seedling planting device. There is something I did. This seedling transplanter is equipped with front and rear wheels provided on both left and right sides of the traveling machine body so that the ridges formed in the field are run across the ridge, while the tip of the vertically swinging arm of the seedling planting device attached to the traveling machine body is moved. The operator inserts the seedlings to be transplanted into the transplant cup, and the lower end of the transplant cup is opened back and forth when piercing the upper surface of the ridge so that the seedlings are transplanted onto the upper surface of the ridge. It was

[0003]

However, in cultivars such as root deep green onions, which have a long white onion sheath of edible edible, they are said to have too high ridges because they are cultivated by transplanting the seedlings to the base after transplanting. In the conventional technique, a long trench is dug in the field in advance by the trench digging machine, and then the seedling transplanter is run along the trench at a predetermined interval. For example, transplanting seedlings into the groove,
It was executed in the work process.

Therefore, there is a problem that the efficiency of transplanting the seedlings of this type is low. Furthermore, since there is no restraint member for linearly running the seedling transplanter having the above configuration along the already dug groove, it is difficult to linearly transplant seedlings in the groove, and in severe cases However, there is a possibility that an accident may occur in which the traveling wheels are fitted into the groove.

The present invention has been made to solve these problems, and a first object of the present invention is to improve the efficiency of work for transplanting seedlings for root deep green onions and to safely transplant seedlings. It is to provide a seedling transplanter that can do it. A second object of the present application is to provide a seedling transplanting machine that can be easily changed to seedling transplanting work in which the trench digging work is not executed.

A third object of the present application is to prevent the power transmission to the seedling planting device or the like from being adversely affected when transmitting the power to the rotary tillage part for digging.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 is a matrix in which an engine, a mission case, and a seedling tray are arranged in a matrix on a traveling machine body that is self-propelled by left and right traveling wheels. A seedling supply device for supplying pot seedlings for root deep green onions, etc. arranged, and a seedling planting device for transplanting pot seedlings from the seedling feeder to a field, the front part of the traveling machine body, the seedling planting While providing a rotary tillage part for forming a groove into which the vertically moving transplantation mechanism in the device can be inserted, the traveling machine body is provided with a soil-covering wheel for covering the transplantation site in the groove behind the transplantation mechanism. It is arranged.

According to a second aspect of the present invention, in the seedling transplanting machine according to the first aspect, traveling wheels are arranged on both left and right sides of front and rear portions of the traveling machine body, and the rotary tiller is provided on the traveling machine body. It is detachably attached to the front part. The invention described in claim 3 is claim 1 or claim 2.
In the seedling transplanter described above, power is transmitted from an output shaft of an engine in the traveling machine body to an input shaft of the rotary tiller via an endless belt.

[0009]

Next, an embodiment of the present invention will be described. 1 is a schematic plan view of the seedling transplanter, FIG. 2 is a side view of the seedling transplanter with the bonnet cover and the like removed, and FIG. 3 is a side view of the seedling transplanter with the seedling feeder omitted. It is a top view which abbreviate | omitted and showed the seedling supply apparatus. The traveling machine body 1 of the seedling transplanter is provided with an engine 18, a mission case 17, and one seedling planting device 2 and one seedling supply device 3 as described later, and the traveling machine body 1 is arranged on both left and right sides. Running wheels 4, 4
And rear traveling wheels 5 and 5 are mounted via an elevating mechanism to be described later, and a rotary tiller 7 for groove digging is detachably attached to the front of the traveling machine body 1. A pot seedling N for root deep green onion, which will be described later, is transplanted to the inner bottom surface of the trench M excavated in. At the rear part of the traveling machine body 1, a pair of right and left earth-covering wheels 6, 6 for covering the left and right sides of the transplanted pot seedling N are attached.

The elevating mechanism is constructed as follows. That is, the arms 12, 12 protruding from the cylinders 9, 9 rotatably fitted to the left and right ends of the support shaft 8 extending left and right at the front portion of the traveling machine body 1 are extended to the rear of the traveling machine body 1, and each arm is extended. 1
Attach the front traveling wheel 4 to 2. On the other hand, the base ends of the swing case 15 of the rear traveling wheels 5 are attached to the axle cases 13a and 13b that cover the axles 13 protruding from the left and right sides of the transmission case 17 of the traveling vehicle body 1 so as to be vertically rotatable. The rear traveling wheels 5 are rotationally driven via the internal power transmission mechanism.

The left and right cylinders 9 and the axle case 13 are also provided.
A and 13b are rotatably connected to each other via a link mechanism 16. Then, the hydraulic cylinder 10 for raising and lowering drive arranged above the mission case 17 of the traveling body 1
, Rolling drive hydraulic cylinder 11, and interlocking mechanism 1
4, the front-rear traveling wheels 4, 4, 5, 5 are simultaneously moved up and down, and the right-side front-rear traveling wheels 4, 5 and the left-side front-rear traveling wheels 4, 5 are moved up and down in opposite directions to run on a sloping land. It is configured so that the rolling control can be executed so that the left and right of the traveling machine body 1 can maintain a horizontal posture at any time.

As shown in FIGS. 4 and 5, the interlocking mechanism 14 has an operating shaft 141 which can be moved back and forth by the piston rod of the hydraulic cylinder 10 for raising and lowering and is rotatable along a rail guide 142 which is long in the front and rear direction. An upper bracket 143a, which is fitted so as to move and projects to the left end of the operating shaft 141, and a bracket 144, which projects to the left axle case 13a, are rotatably connected by a link 145 via a pin, Lower bracket 143 protruding to the right end of the operating shaft 141
b and bracket 144 protruding to the right axle case 13b
And rotatably connected by a link 145 via a pin,
The rolling shaft hydraulic cylinder 11 is mounted so as to move back and forth integrally with the working shaft 141.
Are connected so that they can be rotated forward and backward.

As a result, when the piston rod of the hydraulic cylinder 10 is projected, the operating shaft 141 retracts rearward of the traveling machine body, and the rear traveling wheels 5 on both the left and right sides via the link 145, the bracket 144 and the swing case 15. And lowers the front traveling wheels 4 on both left and right sides with respect to the traveling machine body 1 via the link mechanism 16 and the arm 12 to raise the traveling machine body 1 with respect to the ground (the ground height is increased. To). In this state, the front and rear traveling wheels 4 and 5 are located as shown by the one-dot chain line in FIG. 2, and the lower end of the rotary tiller 7 to be described later is located above the lower end surfaces of the traveling wheels 4 and 5, so that it does not interfere with road traveling. Absent.

On the contrary, the hydraulic cylinder 10 operates the operating shaft 141.
When the vehicle is moved to the front of the traveling machine body, the front traveling wheels 4 and the rear traveling wheels 5 are simultaneously raised with respect to the traveling machine body 1, and the traveling machine body 1 is lowered with respect to the ground. In this state, the lower end of the rotary tiller 7 is below the lower end surfaces of the traveling wheels 4 and 5, so that if the height of the traveling wheels 4 and 5 is adjusted, the groove M having a predetermined depth H1 is formed. You can

The rolling drive hydraulic cylinder 1
When the piston rod of No. 1 is projected and the actuating shaft 141 is rotated clockwise in FIG. 5, the left and right front and rear traveling wheels 4, 5 are lowered with respect to the traveling machine body 1, while the right and left front and rear traveling wheels 4, 5 are arranged. Is elevated with respect to the traveling body 1 to perform rolling control. Next, the configuration of the rotary tiller 7 for forming the groove M will be described with reference to FIGS. 2 and 3.

A rotary tiller 7 is provided at the front of the traveling body 1.
The machine frame 700 and the mounting arm 701 are detachably mounted with a bolt or the like (not shown). Rotary plowing claws 703 are mounted on both left and right sides of a lower end of a chain case 702 projecting downward from the tip of the mounting arm 701.
Output pulley 704 provided on the left side surface of the engine 18.
And the input pulley 70 at the upper end of the chain case 702.
The endless belt 706 is wound around the gear 5, and the power from the engine 18 is transmitted to the rotary tilling claw 703. On the other hand, the power from the engine 18 is once transmitted through the pulley and the belt (not shown) to the transmission mechanism in the transmission case 17 (Fig. (Not shown), and the chain 6 from the power transmission means in the mission case 17 to the axle 13 and a seedling planting device 3 described later.
The power is transmitted via 5. On the lower surface of the machine frame 700, there is provided an earth-discharging plate 707 which is disposed so as to straddle the upper outer periphery of the rotary tillage claw and the groove M.

Next, the seedling planting device 2 and the seedling supplying device 3 will be described with reference to FIGS. The traveling machine body 1 is provided with a handlebar 19 extending rearward, and the seedling stand 20 of the seedling feeder 3 is arranged so as to be capable of reciprocating left and right, straddling a pair of left and right support rods 19a, 19a of the handlebar 19. Then, the seedling mounting table 20 is configured to reciprocate left and right via the lateral feed mechanism 21.
The seedling trays 27 having the seedling pot portions 27a arranged in a matrix form in the front, rear, left and right of the traveling direction in a plan view are mounted on the seedling pot 27a, and the vertical feeding mechanism 22 provided on the seedling placing table 20 moves the lateral feed. At the terminal end, the seedling pot portion 27a is configured to be vertically fed intermittently by one pitch in the forward direction of the traveling machine body 1 (see FIG. 6).

As shown in FIGS. 7 and 8, the seedling planting apparatus 2 includes a swing arm 31 that swings up and down and the swing arm 31.
A transplanting mechanism 30 including a transplanting cup 32 for holding a potted seedling to be transplanted at the tip of the seedling and transplanting it in the field, and a seedling pot part 2 of the seedling tray 27 in the seedling feeding device 3.
In order to transfer from 7a to the pot seedling transplanting cup 32, it is constituted by the inheritance mechanism 29 composed of the seedling take-out claws 60 and the like, and the power is transmitted from the mission case 17 to the seedling planting device 2 through one transmission system. It is composed.

Next, the structure of the transplantation mechanism 30 is shown in FIGS.
Will be described with reference to. The proximal chain sprocket 35 in the rotating case 34 of the transplant mechanism 30 is attached to the PTO shaft 23 as an output shaft protruding from the mission case 17, and the rotating shaft 36 on the free end side of the rotating case 34 is attached.
A chain 38 is wound around the chain sprocket 37 and the chain sprocket 35, which are fitted to the above, to transmit power.

A rotary case 40 is rotatably fitted to one side surface of the rotating case 34 on the free end side, and a sun gear 39 is fixedly provided concentrically with the rotary shaft 36. The intermediate gear 41 that meshes with the planetary gear 42 that meshes with the intermediate gear 41 are rotatably supported in the rotary case 40. In addition, chain sprocket 3
A friction clutch 43 is provided between the rotary shaft 36 and the rotary shaft 7 to prevent the rotary shaft 36 from slipping when power is overloaded.

A spindle 44 to which the planetary gear 42 is attached
The crank arm 45 is fixed to the crank arm 4 and
A tip shaft 46 of No. 5 is rotatably attached to a middle part of the swing arm 31. A guide roller 47 at the base end of the swing arm 31
Is vertically slidably fitted to a guide rail 48 that is erected so as to be substantially vertical to the ground. The transplantation cup 32 is composed of a pair of cup bodies 32a and 32b, which is a substantially conical one that is constricted downward, and is divided into front and rear halves. The rotation support shaft 4 is fixed to the upper ends of the cup bodies 32a and 32b.
9a and 49b are rotatably supported by a support plate 50 protruding from one side of the swing arm 31, and are formed in a side view X-shape in which two link pieces are pivotally connected by pins. Both rotation support shafts 49a and 49b are configured to rotate in opposite directions via the link mechanism 51 of
A pair of cup bodies 32a and 32b are urged by a spring 52 in the direction in which the lower ends of the cup bodies 32a and 32b are always closed. The base end of the push rod 53 connected to the link mechanism 51 is supported so as to be movable back and forth with respect to the swing arm 31, and the base end of the push rod 53 is attached to the tip end shaft 46 of the crank arm 45. It is provided so as to be in constant contact with the cam 54 that fits and rotates integrally.

With this configuration, when the rotary case 40 is rotated in the direction of arrow A in FIG. 7 through the chain sprockets 35, 37 and the rotary shaft 36 by the rotation of the PTO shaft 23, the sun gear 39, the intermediate gear 41, By the meshing rotation of the planetary gear 42, the crank arm 45 rotates in the direction of the arrow B, and the swing arm 31 connected to the crank arm 45 swings back and forth around the guide roller 47 and moves along the guide rail 48. Since it moves up and down, the transplanting cup 32 moves up and down and moves from the front position of the seedling tray 27 to the bottom surface in the groove M. Also, the transplant cup 32
Is a pair of front and rear cup bodies 32a, 32 in the upper position.
Since the lower end of b is closed (see the solid line in FIG. 7), the posture can be maintained even if a pot seedling (not shown) to be transplanted is inserted from above. On the other hand, transplant cup 32
When the lower end of the cup body 32a, 32b pierces the soil surface of the bottom surface in the groove M (see the state of the chain double-dashed line in FIG. 7), the push rod 53 is pushed out by the cam 54 and the link mechanism 51 Both rotation support shafts 49a and 49b are rotated in opposite directions via the opening and the lower ends of the cup bodies 32a and 32b are opened, so that the pot seedling N inside can be transplanted into the groove M (see FIG. 2). ).

Next, with reference to FIGS. 2 and 9 to 12, the structure of the inheritance mechanism 29 including the seedling take-out claws 60 and the like will be described. As shown in FIG. 10, while the power is transmitted from the power transmission case (not shown) on the mission case 17 to the inheritance mechanism 29 via the chain 64,
Similarly, power is transmitted from the power transmission case to the seedling feeding device 3 through the plurality of chains 65 and 66 wound around the chain sprocket (see FIG. 6).

A support plate 68 is fixedly mounted on a bracket 67 fixed to the traveling machine body 1, and an input shaft 71 on which the chain sprocket 63 is fitted is rotated on the inner circumference of a sun gear 70 fixed to the support plate 68. The input shaft 71 is freely fitted, and the other end of the input shaft 71 is fixed to the rotary case 72 so as to rotate integrally. Inside the rotary case 72, an intermediate gear 73 meshing with the sun gear 70 and a planetary gear 75 fixed to the crankshaft 74 and meshing with the intermediate gear 73 are housed, and the crank arm 7 attached to the crankshaft 74 is mounted.
A pair of left and right seedling picking claws 60, 60 are attached to one end of the cam shaft 77 protruding from the tip of the seedling picking arm 7.
8 is rotatably fitted. A guide shaft 79 protruding from the other end of the seedling picking arm 78 has a guide groove 80 of a substantially arc shape in a guide plate 80 fixed in parallel with the support plate 68.
1 is slidably fitted, and one rotation of the rotary case 72 around the input shaft 71 causes the pair of seedling take-out pawls 60, 60 to move from the posture shown in FIG. 9 to the posture shown in FIG. Locus 82 for returning to the original position after the seedling take-out claw is pierced into the seedling pot portion 27a of 27 and the pot seedling is sandwiched)
(See FIG. 9).

The pair of left and right picking claws 60, 6 are also provided.
0 base end attachment pieces 83, 83 are L-shaped pivots 84, 84.
Each of the pivots 84 is rotatably attached to the eyeglass-shaped mounting portion 78a of the seedling picking arm 78, and the pair of left and right seedling picking claws 60 is connected by a spring 85 connecting the left and right mounting pieces 83, 83. , 60 are always urged in the closing direction.

A cam plate 86 is fixed to the cam shaft 77,
On the front and back surfaces of the wide width of the cam plate 86, arc-shaped end face cam portions 87, 87 are provided so as to project in a section of a rotation angle along the circumferential direction, and the bases of the pair of left and right seedling picking claws 60, 60 are provided. When the abutting pieces 88, 88 of a spherical shape or the like projecting from the end mounting pieces 83, 83 so as to face each other ride on the end surface cam portions 87, 87 and come into contact therewith, the tips of both seedling picking claws 60, 60 are the springs. It is designed to open against the force of 85.

Further, the pin 8 of the seedling take-out arm 78
The base ends of a pair of rod-shaped push-out tools 91, 91 are rotatably mounted on a mounting plate 90 rotatable around nine positions, and the tip end annular portion 91a of each push-out tool 91 has the above-mentioned chopstick shape. Both tip annular portions 91a are moved toward the tip of the seedling picking claws 60, 60 by a spring 93 slidably fitted to the seedling picking claws 60, 60 and mounted on a mounting plate 90 and a seedling picking arm 78. Is urged to do so. The roller 92 attached to the mounting plate 90 is always in contact with the peripheral surface (peripheral cam portion) of the cam plate 86, and the roller 92 is located in the recess 86a in the predetermined rotation section of the cam plate 86. When positioned (seedling picking claw 60,
When the pot seedling pierced and pinched by 60 is located above the transplanting cup 32), the pot seedling is pushed out by the tip annular portions 91a of both the extruding tools 91, and the pot seedling is picked up from the seedling take-out claws 60, 60. Is configured to be discharged (withdrawn).

If a long space is formed vertically between the top dead center position of the moving path of the transplanting cup 32 and the bottom dead center position of the moving path of the seedling picking claws 60, 60, a seedling picking claw 6 is formed.
Since the pot seedlings apart from 0 and 60 may not fit smoothly into the transplantation cup 32, in that case, it is preferable to provide a guide cylinder 94 having upper and lower ends opened as shown in FIG.

Next, the seedling feeding device 3 will be described with reference to FIGS. 6 and 13 to 15. Seedling stand 20 is shown in Figure 1.
As shown in FIG. 3, the frame 100 has a substantially rectangular shape in a plan view.
And a vertical feed mechanism 2 arranged on one side of the frame 100
Vertical feed case 10 with a built-in vertical feed transmission unit 2
1 and a transport chain 1 for vertically feeding the seedling tray 27
02, large and small chain sprockets 103 and 104,
The empty seedling tray 27 includes a guide frame 105 and the like arranged so as to be guided toward the rear end of the handle 19.

The front and rear guide rollers 108 and the vertical guide rollers 109 mounted on the frame 100 of the seedling mounting table 20 and the like are attached to the left and right support rods 19 of the handle 19.
The seedling mounting table 20 is mounted so as to be movable in the left and right direction without rattling up and down and front and back by contacting with a pair of front and rear U-shaped guide rails 106 and 107 fixed to a, 19a and the like. .

The seedling tray 27 is made of a soft synthetic resin material having flexibility, and can be curved along the circumference of a large-diameter chain sprocket 103 when it is mounted on the transport chain 102 and transported. There is. The pair of left and right transfer chains 102, 102 is a large-diameter chain sprocket 103 and a frame 100 mounted on a vertical feed drive shaft 110 driven via a power transmission system in a vertical feed case 101.
It is wound around a small diameter chain sprocket 104 on a driven shaft 111 that is rotatably mounted on.

The pair of left and right transfer chains 102, 102
Laterally-engaged engaging pins 112 are projected at an appropriate pitch P1, and the left and right engaging pins 110 are provided on the lower surface side of the continuous portion of the seedling pot portions 27a arranged in the transport front-rear direction in the seedling tray 27. It is engaged and reliably conveyed in the direction of arrow C in FIG. The large diameter chain sprocket 103
A guide piece 113 for guiding the seedling tray 27 to be curved along the outer periphery of the frame is provided on the frame 100 or the like.

As shown in FIG. 15, the transverse feed mechanism 21
Lateral feed shaft 115 protruding from the transmission case 114 in
A reciprocating feed screw portion 115a is formed in the reciprocating feed screw portion 115a, and a feed block 116 with a boat-shaped key screwed into the reciprocating feed screw portion 115a and an engaging piece 117 such as an engaging bolt protruding from the frame of the seedling mounting table 20. The seedling mounting table 20 is connected and horizontally moved in the lateral width direction of the seedling tray 27 at every lateral interval of the seedling pot portion.

On the other hand, the vertical feed shaft 118 protruding from the transmission case 114 intermittently rotates at the horizontal feed end position of the seedling placing table 20 and is separated from the vertical feed shaft 118 by the horizontal width of the seedling tray 27. The pair of kick claws 119 and 119 provided as
A driven cam (not shown) provided in the vertical feed case 101 is kicked and rotated, and the vertical feed drive shaft 110 is intermittently rotated via a transmission portion in the vertical feed case 101, so that the seedling pot portion 27 is formed.
a is intermittently vertically fed by a constant pitch P2.

Next, the structure of the soil-covering wheel 6 will be described with reference to FIGS. 2, 3, and 16. The seedling transplant mechanism 3
Supporting the handle 19 so that the pair of left and right soil-covering wheels 6 and 6 rotate while pressing the soil on both the left and right sides of the portion where the pot seedling N for deep root onion was planted on the bottom surface of the groove M with the transplanting cup 32 of 0. It is attached to the rods 19a, 19a or the machine frame 1a via the elevating mechanism 120. As shown in FIG. 16, the tip (front end) of the elevating arm 122 extending forward from the base end of the bracket 121 supporting the pair of right and left earth-covering wheels 6, 6 is supported by the support shaft 123 in the machine frame 1a so as to be vertically rotatable. Let

A guide groove 125, which is L-shaped in a side view, is formed on an operating plate 124 projecting upward from the elevating arm 122, and a guide pin 126 is slidably inserted into the guide groove 125. The arm 127 is rotatably supported by a support shaft 128 attached to the support rod 19a, etc., and the regulating arm 127 is supported by a biasing spring 129 such as a torsion spring, and the guide pin 126 has a guide pin 126 at the lower end of the guide groove 125 in a substantially horizontal groove. Energize in the direction that fits in the direction.

In the vicinity of the upper part of the regulating arm 127, a bell crank lever 131 for raising and lowering which is rotatable around a rotary shaft 130 is provided, and a suspension support link 132 pin-connected to an arm portion 131a of the bell crank lever 131. The guide pin 133 at the lower end of is connected to the loose fitting groove 134 of the operating plate 124 of the elevating arm 122 so as to have a vertical play distance. The other arm portion 131b of the bell crank lever 131 is an operation lever 1 provided on the handle 19.
While being connected to the operation wire 136 attached to 35,
The bell crank lever 131 is biased by a spring 137 so as to rotate counterclockwise in FIG. The operation lever 135 is associated with an interlocking portion such as an operation wire for turning on / off a planting clutch for turning on / off the power transmission to the seedling planting device 2.

With this configuration, arrow E in FIG.
When the operation lever 135 is rotated in the direction (to put in the planting clutch), the operation wire 136 is loosened, the bell crank lever 131 is rotated counterclockwise by the force of the spring 137, and the lifting arm 122 is rotated by the weight of the earth covering wheel 6. Rotates downward, the soil cover wheel 6 fits into the groove M, and can cover the soil on the left and right sides of the pot seedling transplantation.

On the contrary, when the operation lever 135 is rotated in the direction of arrow F in FIG. 16, the planting clutch is disengaged and the bell crank lever 131 is rotated clockwise by the operation wire 136 against the force of the spring 137. Moving, suspension link 1
The raising / lowering arm 122 can be raised above the groove M via 32. Then, since the guide pin 126 of the regulating arm 127 which is rotated by the biasing spring 129 engages with the horizontal portion of the L-shaped guide groove 125 of the operating plate 124 in the raised position, the lifting arm 122 is moved to the raised position. Can be held.

When the bell crank lever 131 is rotated in the direction of arrow E or F, the cam 138 protruding from the bell crank lever 131 kicks the driven roller 139 at the upper end of the regulating arm 127. Therefore,
The restricting arm 127 resists the force of the biasing spring 129, and
, The guide pin 126 engaged with the horizontal portion of the guide groove 125 is forcibly moved in the direction of the vertically long and downward guide portion, so that at the same time as planting and engaging of the clutch, The soil covering wheel 6 can be lowered toward the groove M.

With the above structure, when the traveling vehicle body 1 is moved forward and the power is transmitted to the rotary tilling section 7 and the front and rear traveling wheels 4 and 5 are raised, a groove M is formed in the field at the front portion of the traveling vehicle body 1. To form. When the seedling supplying device 3 and the seedling planting device 2 are operated, the seedling mounting table 20 in the seedling supplying device 3 moves to the right or left in the traveling direction, and the pair of seedlings in the inheritance mechanism 29 is synchronized with this movement. The take-out claws 60, 60 sandwich and extract the pot seedling from the seedling pot portion 27a of the seedling tray 27, and discharge the pot seedling to the transplanting cup 32 at the top dead center position. Then, the swing arm 31 is rotated to repeat the operation of planting the pot seedlings in the groove M in the vicinity of the lower end portion of the descending stroke of the transplantation cup 32, so that the seedlings for root deep green onion can be transplanted. Of. Then, since the soil-covering rings 6 and 6 pass on both right and left sides of the transplanted seedling, the seedling can be rooted.

Further, since the trench digging work and the seedling transplanting work can be performed continuously at one time, the agricultural work can be efficiently executed. Then, in the front part of the traveling machine body 1, the rotary tilling section 7 performs digging, and on the rear side, the soil covering wheels 6, 6 pass through the groove M, so that the traveling machine body 1 travels linearly along the groove M. The operation is made extremely simple, and the transplanting cup 32, which moves up and down in the middle of its front and rear, comes off the groove M and is damaged, and the traveling wheels 4, 4.
It is possible to surely prevent the accident that 5 falls into the groove M.

In this embodiment, since the rotary tillage part 7 is detachably attached to the front part of the traveling body 1 of the seedling transplanter, if the rotary tillage part 7 is removed, seedlings are formed on the ridges formed in the field. Can be applied to other forms of seedling transplanting work such as transplanting. Furthermore, since power transmission from the engine 18 to the rotary tiller 7 is executed via the endless belt 706, even if the rotary tiller 7 is overloaded, the endless belt 706 simply slips, so that the seedling planting It is possible to avoid inconvenience if the supply timing and the inheritance timing of the pot seedlings are deviated without adversely affecting the power transmission to the device 2 and the seedling supply device 3.

Needless to say, the configurations of the seedling planting device 2 and the seedling supplying device 3 are not limited to those of this embodiment, and may be conventionally known ones. Further, the left and right pairs of runner ends may be provided.

[0045]

As described above, claim 1
The invention described in, the traveling machine that runs by itself on the left and right traveling wheels, an engine, a mission case, and a seedling supply device for supplying pot seedlings such as root deep green onions arranged in a matrix on the seedling tray. A rotary tillage unit for forming a groove into which a vertically moving transplantation mechanism of the seedling planting device can be inserted, in the front part of the traveling machine body, comprising a seedling planting device for transplanting pot seedlings from the seedling supply device to a field. On the other hand, on the other hand, the running machine body is provided with a soil-covering wheel for covering the transplanting site in the groove behind the transplanting mechanism.

Therefore, the groove digging work and the seedling transplanting work can be continuously performed at one time, so that the agricultural work can be efficiently executed. And, in the front part of the traveling machine body, digging the groove in the rotary tillage part, and since the covered soil wheel passes through the groove on the rear side, the operation of linearly traveling the traveling machine body along the groove becomes extremely easy, There is an effect that it is possible to reliably prevent an accident that a part of the seedling planting device that moves up and down in the middle part of the front and rear is dislocated from the groove and is damaged, or the traveling wheel falls into the groove, and the agricultural working machine can be executed with safety.

According to a second aspect of the present invention, in the seedling transplanting machine according to the first aspect, traveling wheels are disposed on the left and right sides of the front and rear portions of the traveling machine body, and the rotary tiller is provided on the traveling machine body. It is detachably attached to the front part. Therefore, according to the present invention, it is possible to easily change the seedling transplanting work in which the trench digging work is not executed by simply removing the rotary tillage part.

According to a third aspect of the present invention, in the seedling transplanting machine according to the first or second aspect, power is transmitted from an output shaft of an engine in the traveling machine body to an input shaft of the rotary tiller via an endless belt. It is configured to do. Therefore, in addition to the action and effect of the invention described in claim 1, the endless belt only slips even if the rotary tillage part is overloaded, which adversely affects the power transmission to the seedling planting device and the seedling supplying device. In addition, it is possible to avoid the inconvenience if the supply timing and the transfer timing of the pot seedlings are deviated.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a seedling transplanter.

FIG. 2 is a side view of the seedling transplanter with the bonnet cover and the like of the seedling transplanter removed, with the seedling supply device omitted.

FIG. 3 is a plan view with the bonnet cover and the like of the seedling transplanter removed, with the seedling supply device omitted.

FIG. 4 is a plan view showing a mechanism for raising and lowering traveling wheels and a rolling mechanism.

FIG. 5 is a side view showing a mechanism for lifting and lowering traveling wheels and a rolling mechanism.

FIG. 6 is a schematic plan view of a seedling supply device.

FIG. 7 is a side view of a main part of a seedling transplantation mechanism.

FIG. 8 is a plan sectional view of a main part of a seedling transplanting mechanism.

FIG. 9 is a side view showing a positional relationship among a transfer mechanism, a seedling supply device, and a transplant cup.

FIG. 10 is a cross-sectional view of a main part of the inheritance mechanism.

FIG. 11 is a side view of a main part of the inheritance mechanism.

FIG. 12 is a front view of a main part of a seedling take-out nail.

FIG. 13 is a plan view of a main part of the seedling supply device.

FIG. 14 is a schematic side view of a main part of a seedling table.

FIG. 15 is a plan view of a main part of a lateral movement constituent part of the seedling table.

FIG. 16 is a side view of a lifting mechanism for a covering wheel.

[Explanation of symbols]

 1 traveling machine body 2 seedling planting device 3 seedling supplying device 4 front traveling wheel 5 rear traveling wheel 6 soil-covering wheel 7 rotary tilling part 15 swing case 17 mission case 20 seedling mounting table 27 seedling tray 21 horizontal feeding mechanism 22 vertical feeding mechanism 29 inheritance Mechanism 30 Transplanting mechanism 31 Swinging arm 32 Transplanting cup 34 Rotating case 60 Seedling picking claw

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Kuraya 1-32 Chayamachi, Kita-ku, Osaka, Yanmar Agricultural Machinery Co., Ltd. Inside the machine shop

Claims (3)

[Claims] 1. A traveling aircraft that is self-propelled by left and right traveling wheels,
An engine, a mission case, a seedling supply device for supplying pot seedlings for root deep green onions arranged in a matrix on a seedling tray, and a seedling planting device for transplanting pot seedlings from the seedling supply device to a field. In the front part of the traveling machine body, a rotary tilling part for forming a groove into which the vertically moving transplantation mechanism of the seedling planting device can be inserted is provided, while the traveling machine body is provided with a rear part of the transplantation mechanism. A seedling transplanter characterized by having a soil-covering ring for covering the transplanted site in the groove. 2. The traveling machine body is provided with traveling wheels on both left and right sides of front and rear portions thereof, and the rotary tiller is detachably attached to a front part of the traveling machine body. The seedling transplanter according to 1. 3. A power transmission from an output shaft of an engine in the traveling machine body to an input shaft of the rotary tiller via an endless belt.
Alternatively, the seedling transplanter according to claim 2.