JP2003274713A - Vegetable transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vegetable transplanter capable of forming a necessary planting locus A by combining a rotary motion of a rotary member 30, or 131, and each of swinging actions of seedling-planting claws 23 so as to make it possible that each of the seedling-planting claws 23 solely conducts a series of operations starting from taking out of the seedlings and ending with planting of the seedlings, and further capable of forming the necessary planting loci A as desired so as to increase degrees of freedom in forming the planting loci A. <P>SOLUTION: In this vegetable transplanter equipped with the seedling-planting claws 23 for taking out the seedlings N from a seedling platform 21 and planting the seedlings N in a farm field, the seedling-planting claws 23 are each supported on the rotary member 30, or 131, and a swinging can 35, or 132, which makes the seedling-planting claws conduct the swinging action is mounted on the rotary member 30, or 131, so that each of supporting points 40, or 161, of the seedling-planting claws 23 is moved to form an approximately triangle locus K and simultaneously each of the tips of the seedling-planting claws 23 is moved to form the seedling-planting locus A by making each of the seedling-planting claws 23 swing around each of the supporting points 40, or supporting axes 156. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetable transplanter for picking up one seedling of onion, leaf onion, white onion, etc. from a seedling tray and planting it in a field.

[0002]

[Problems to be Solved by the Invention] Conventionally, a seedling take-out nail for carrying out one row of seedling planting by inheriting the seedling taken out from the seedling tray of the seedling table by one seedling taking nail to one seedling planting nail There is a vegetable transplanter of the inheritance type with the seedling planting claw, but in this case the structure is extremely complicated because not only is it necessary to drive each of the seedling take-out claw and the seedling planting claw, but it is also necessary to synchronize them. In addition, the seedling posture is disturbed when the seedling is picked up from the seedling picking nail to the seedling planting nail, and the higher the planting speed, the more pronounced the disturbance and the lower the seedling planting accuracy. There was such inconvenience.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a seedling planting claw for taking out a seedling from a seedling tray on a seedling mounting table and planting it in a field is supported by a rotary member, and the seedling planting claw swings. A swing cam is provided on the rotary member to move the fulcrum part of the seedling-planting nail along the locus K of the substantially triangular shape, and also swing the seedling-planting nail around the fulcrum part to tip the seedling-planting nail. Is moved along the locus A for planting seedlings to form the locus A for planting required by the combination of the rotary motion of the rotary member and the swinging motion of the claws for planting seedlings. A single seedling planting nail can be easily used, and a required planting locus A can be freely formed to improve the degree of freedom in forming the planting locus.

Further, a cam roller rolling on the cam surface of the swing cam is arranged on the seedling planting nail, and the cam roller provided on the seedling planting nail accurately swings the seedling planting nail in synchronization with the rotation of the rotary member. By performing the operation, the required planting locus A is formed with high accuracy.

Further, a cam follower member for constantly rolling contact with the cam roller is provided on the cam surface of the swinging cam to perform a swinging motion of the seedling planting claw that accurately follows the swinging cam during rotation of the rotary member. It is intended to improve performance in high-speed planting work.

Further, an opening / closing cam for opening and closing the right and left nail bodies of the seedling planting nail is provided on the rotary member, so that the nail body can be easily opened and closed in synchronization with the movement of the seedling planting nail on the planting locus A. By doing so, good seedling extraction and seedling planting are performed to improve planting accuracy.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is an overall side view of the transplanter, FIG. 2 is an overall plan view of the same, FIG. 3 is a drive explanatory view of the transplantation portion, FIG. 4 is a plan explanatory view of the transplantation portion, and in FIG. Body 3 is a fixed frame that supports the body 1 on the front and rear slide frames 4 and 5 so that the body 1 can slide left and right, 6 is a hydraulic slide cylinder that slides the body 1 through a slide arm 7, and 8 is a drive from a mission case 9. Left and right rear wheels supported on the horizontal shaft 10 via a left and right transmission case 11 so as to be vertically swingable, and 12 are left and right front wheels supported on the front end side of the fixed frame 3 through an axle frame 13 so as to be vertically swingable. Is a hydraulic swing cylinder for vertically swinging the front and rear wheels 12 and 8 via a swing shaft 15 on the rear end side of the fixed frame 3, and 16 is a seedling supply device installed behind the machine body 1 via a chassis frame 17. Reference numeral 18 is a seedling planting device that is mounted between the left and right rear wheels 8 and is connected to the mission case 9 via a planting clutch case 19, and 20 is a pair of left and right soil-covering wheels disposed below the seedling supply device 16. The pot seedlings N for one plant are put on the seedling tray 22 on the seedling placing table 21 which reciprocates left and right of the seedling supplying device 16 and the nails 23 with spatula-shaped seedlings are planted.
Therefore, by directly planting on the ridge M of the picked-up picking field,
The pot seedlings N are transplanted to the ridge surface M at regular intervals while the machine body 1 is traveling by operating the steering handle 24.

Further, 25 is an elevating lever for operating the swing cylinder 14 to elevate and lower the machine body 1, 26 is a main clutch lever, 26a is a planted clutch lever, 27 is a main shift lever for changing the traveling speed, and 28 is A slide adjusting lever that adjusts the position of the machine body 1 in the left-right direction, and 29 is a left and right side clutch lever that stops the driving of the left and right rear wheels 8 and turns the machine body 1.

As shown in FIG. 5, the nail 23 with seedlings is
Seedling N with two seedling-planting nails 23 for one seedling tray 22
Of the same planting locus A, the phase is 180 degrees different on the same planting locus A, and the seedlings are planted and planted twice in one planting locus A. It is configured to perform high-speed planting work by doubling the speed.

As shown in FIGS. 6 to 16, the seedling planting device 18 includes left and right rotary cases 30 and 31 which are arranged on the left and right sides of the two seedling planting claws 23 at different positions in the front-back and up-down directions. The left and right rotary arms 32 and 33 are provided, and the centers of the left and right rotary arms 32 and 33 are connected to the output shafts 34 of the left and right rotary cases 30 and 31 inside the left and right rotary cases 30 and 31, respectively.
The outer shaft 3 which is fixed to both ends of the left rotating arm 32 via the connecting shafts 36 and is loosely fitted to the outer periphery of the connecting shaft 36 is connected to the two swing cams 35 arranged substantially in the center between the 33.
7, a cylindrical open / close cam 39 is integrally connected via a connecting arm 38, and the base ends of swinging arms 41 are integrally connected to both ends of the right rotating arm 33 via connecting shafts 40, respectively, and the center of the open / close cam 39 is freely rotatable. 10, the tip of the swing arm 41 is integrally connected to the fitting cam shaft 42, and the right rotary case 3 is located at the center of the line a connecting the two cam shafts 42 as shown in FIG.
The output shaft 34 of No. 1 is aligned and the line a and the left rotary arm 32 are arranged in parallel to form a parallelogram with the line a, the left rotary arm 32 and the two connecting arms 38. When the output shaft 34 of 31 rotates, the left and right rotating arms 32 and 33 are deformed by deforming only the postures of the line a and the left rotating arm 32 (deforming the parallelogram) while keeping the inclined postures of the two connecting arms 38 constant. 22, the connecting shafts 40 at both ends of the right rotation arm 33 for supporting the seedling planting claw 23 in a swingable manner can be rotated about 3 times.
It is configured so as to form a square-shaped basic locus K for planting.

Further, the rotary cases 30 and 31 are mounted on a fixing bracket of the chassis frame 17 or the like by the drive receiving shaft 4.
The mounting plate 44 of No. 3 is fixed, and the planted drive shaft 49 connected to the output shaft 45 of the planted clutch case 19 via the sprockets 46 and 47 and the chain 48 is supported on the receiving shaft 43, and the left and right rotary cases 30 and 31 are mounted. The sun gear 50 is fixed to the inner receiving shaft 43, and the sun gear 50 is connected to the planetary gear 51 of the output shaft 34 via the idle gear 53 of the intermediate shaft 52.
3 and the same number of teeth, the sun gear 50 and these gears 51, 5
The gear ratio of 3 is set to 3: 2, and the rotary case 30
When 31 makes one rotation in one direction, output shaft 34 makes one rotation in the opposite direction.
It is configured to rotate by / 2.

Further, the connecting shafts 4 on both ends of the right rotating arm 33
The base end of the claw receiving base 55 is fixed to the cylindrical shaft 54 that is rotatably attached to 0, and the long holes 5 are formed in the connecting shafts 36 at both ends of the left rotation arm 32.
The shaft 58 on one end side of the swing arm 57 and the tip of the claw receiving base 55 are connected via the roller 59, and the left and right claw shafts 60 and 61 and the left and right opening and closing plates 62 and 63 are connected to the claw receiving base 55.
The left and right nail bodies 64 and 65 of the nail 23 with seedlings are connected via
A cam roller 66 for rolling contact with the outer peripheral cam surface 35a of the swing cam 35 is provided with a swing arm 57 via a roller shaft 67.
Mounted between the elongated hole 56 and the shaft 58 of the swing arm 57, and the fixed arm 6 of the outer shaft 37 and the other end side of the swing arm 57 centering on the shaft 58.
A tension spring 69 is stretched between the springs 8 so that the seedling planting pawl 23 can be swung by the action of the swing cam 35 that constantly abuts the cam roller 66 by the force of the spring 69.

The left and right opening / closing plates 62 and 63 are provided on the claw shaft 60.
61, while being supported rotatably on the claw receiving base 55 via the respective receiving cylinders 70 on the outer side, the left and right opening / closing plates 62 and 63 and the claw shaft 60.
Uneven left and right cam plates 71 and 72 fixed to 61 respectively
Of the left opening / closing plate 62 to the sliding cylinder 73 which is slidably fitted to the outside of the connecting shaft 40 in a slidable manner.
Is engaged and connected, and a cam driven member 75, one end of which is engaged with the circumferential cam groove 74 of the opening / closing cam 39, is fixed to the sliding cylinder 73, and between the claw receiving base 55 on the outside of the receiving cylinder 70 and the right cam plate 72. A closing torsion coil spring 76 is provided in the structure so that the left and right claws 64 and 65 can be opened and closed by the action of the opening and closing cam 39.

Further, a T is provided between the tips of the left and right claws 64 and 65.
A letter-shaped seedling push-out plate 77 is arranged, the seedling push-out plate 77 is fixed to the tip of the seedling push-out rod 78, and the base end of the seedling push-out rod 78 is slidable on a rod receiver 79 fixed to the cylinder shaft 54. A fixed spring seat 80 for the rod 78
A compression spring 81 is provided between the rod receiver 79 and the rod receiver 79, and the spring 81 is compressed by using the forward input of the seedling take-out claw 23 that enters the seedling tray 22 when taking out the seedlings. The compression spring 81 is configured to accelerate the release of the seedling N held by the claws 64 and 65.

In addition, the left and right soil cover wheels 20 are arranged below the rear part of the seedling planting device 18, and the chassis frame 1
The soil cover 20 is supported by the bracket 82 connected to the 7 side through the adjusting plate 83 and the adjusting bolt 84 so as to be vertically adjustable, and the seedling N immediately after planting is covered with the soil covering 20. .

A seedling table 21 slidably supported in the left and right directions via guide rollers 85 and the like is arranged at the rear of the machine body in the traveling direction, and the seedling tray 22 is provided near the take-out position.
Is a substantially vertical posture, the opening extraction side of the seedling tray 22 is faced forward, and the seedling planting device 1 is arranged in front of the seedling platform 21.
The seedling N of FIG. 8 is projected substantially horizontally from the front into the pot of the seedling tray 22 to take out the seedling N.
As shown in FIGS. 10 and 17 to 20, when the left and right rotary cases 30 and 31 rotate once around the drive shaft 49 in the clockwise direction (the direction of the solid arrow), the left and right rotary arms 32 and 31
33 is rotated 1/2 counterclockwise (in the direction of the broken line arrow) about the output shaft 34 to deform the parallelogram formed by the line a, the left rotation arm 32, and the two connecting arms 38. Claws 23 with seedlings are planted with a basic locus K of planting approximately triangular.
The shaft 40, which is the center of swinging, is moved up and down, and in the vicinity of the upper part and the lower part of the locus K, the swinging cam 35 causes the seedling planting claws 23 to face upward (generally horizontal) and downward (generally vertical).
, The tip of the nail 23 for planting seedlings is moved up and down along the locus A for planting, and the seedlings are taken out from the seedling tray 22 and then the ridge M of the field.
A series of planting work up to planting in a single seedling planting nail 23
This is what you do.

The planting locus A is projected rearward and downward at the upper seedling take-out position and the lower seedling planting position, and a gentle downward slope is made forward between the seedling take-out position and the middle of the seedling planting position. In addition, the seedling tray 2 is formed substantially vertically between the intermediate position and the seedling take-out position, and has a rearward upward slope between the seedling planting position and the seedling take-out position.
2. The seedling planting nail 23 approaches from the lower side of 2 and the seedling N is extracted backward without damaging the seedling with the nail 23, and the extracted seedling N is moved to the lower front side of the nail 23, and the seedling above the seedling tray 22. Leave N seedling tray 22 smoothly without disturbing N,
Around the planting of the seedling N, a good seedling N with a substantially vertical seedling posture
It is configured to plant.

Since one seedling planting claw 23 forms one loop of the planting locus A, the left and right rotary cases 30.
31 is rotated clockwise two times, and the left and right rotary arms 32 and 33 are rotated once counterclockwise to rotate the left and right rotary cases 30 and 3 respectively.
1 rotation in the opposite direction of the left and right rotation arms 30 and 31
The two planting claws 23 are planted twice by rotation, and the planting claw 23 position in FIG. 17 is set to the 0 ° and 180 ° states of the planting locus A, from which the left and right rotary cases 30. When 31 is rotated 90 ° clockwise, FIG.
As shown in, the claw 23 with seedlings moves counterclockwise on the locus A, changes from the 0 ° and 180 ° positions to the 45 ° and 225 ° positions, and further moves the cases 30 and 31 to 180 ° or 270 °. When rotating, as shown in FIGS. 19 and 20, the seedling planting claw 23 is changed to 90 ° / 270 ° or 135 ° / 315 ° position, and when the case 30/31 is rotated once, the state returns to the state of FIG. Case 30, 31-2
One seedling planting claw 23 completes the loop of one planting locus A by rotation.

Further, the planting locus A forms a curved portion A1 which is slightly curved rearward in the vicinity of the field scene, and the moving locus B near the ridge M is set to a substantially vertical B1 state as shown in FIG. Thus, the planting holes of the ridge M are made small to make the planting posture of the seedling N good.

By the way, as shown in FIGS. 7 and 13, the seedling planting claws 23 on the planting locus A are positioned above the planted seedling N during the return stroke from planting the seedling N to the original seedling take-out position. A scraper 87 such as a cleaning brush 86 is provided, and the mud soil that adheres to the nails 23 during the plunging into the soil in the seedling-planting nails 23 that perform the steps from taking out the seedlings N to planting is returned during the return stroke when the seedling-planting nails 23 are opened. In addition, the brush 86 effectively removes it to prevent inconvenience such as adversely affecting the removal of seedlings. As the scraper 87, any rubber plate, elastic plate, or the like may be used in addition to the brush 86.

As is clear from the above, the seedling N with the seedlings 21 for taking out the seedlings N from the seedling placing table 21 and for planting in the field is provided, and the basic locus K for planting the seedlings with the seedling 23 has a substantially triangular shape. As a result of the formation, the required basic planting locus K having a substantially triangular shape can be easily formed by the pawl drive mechanism 88 that is formed by the combination of the rotary cases 30 and 31 and the rotating arms 32 and 33. Since the series of planting work from the taking out of the seedling N to the planting of the seedling N can be easily performed by the seedling planting claw 23, the seedling N of the seedling tray 22 arranged substantially vertically is arranged from the lower side. The seedling planting claws 23 are brought close to each other to properly hold the seedling N without damaging the seedling planting claws 23 after the holding.
It is possible to take out the seedlings N smoothly without moving the seedlings N above the seedling tray 22 while moving the seedlings downward, thereby improving the accuracy of taking out the seedlings N and the planting locus A. Forms a curved portion A1 that curves from the front to the rear in the vicinity of the field scene, so that the planting trajectory (moving trajectory B) in the vicinity of the field scene during traveling work is substantially vertical B
By setting the state to 1, the planting holes in the field can be made small and the planting posture of the seedlings can be improved.

23 to 25, the linear pusher 8 for forcibly pushing out the seedling N when the left and right claws 64 and 65 are opened.
9 shows a configuration example in which the pusher 89 has a ring-shaped portion 89a to be inserted into the outer ends of the left and right claws 64 and 65, and swings on a fixed plate 90 of the cylindrical shaft 54 via a pivot 91. A proximal end of an extruding tool 89 is connected to one end of a seedling pushing arm 92 which is freely supported by a shaft 93, and a seedling pushing cam 94 which forms a seedling pushing cam portion 94a on an outer peripheral surface is fixed to the sliding cylinder 73. While providing a cam acting shaft 95 for contacting the outer peripheral surface of the seedling pushing cam 94 on the other end side of the seedling pushing arm 92,
A cam contact tension spring 96 is stretched between the nail receiving base 55 and the seedling pushing arm 92, and the action shaft 95 is constantly brought into contact with the outer peripheral surface of the seedling pushing cam 94 by the spring 96, so that the seedling planting nail 23 Start pushing the pushing tool 89 with the cam portion 94a in synchronization with the opening timing of the claw bodies 64 and 65 in the vicinity of the lower planting position of the seedling, and smooth even if the seedling separation is worse than the seedling planting nail 23 due to the water content of the seedlings. While enabling the detachment of the seedling N, the push-out tool 89 is retracted and held at the upper moving-out position of the seedling take-out claw 23 to prevent the push-out tool 89 from interfering with the seedling picking.

26 to 36, the claw driving mechanism 88 includes two first and second rotary cases 130.
A configuration example using 131 is shown. The claw drive mechanism 8
8 is a first rotary case 13 for driving the nail 23 with seedlings
0 and a second rotary case 131, a swing cam 132 for swinging the seedling planting claw 23, and an opening / closing cam 135 for opening and closing the left and right claw bodies 133 and 134 of the seedling planting claw 23. The mounting plate 137 of the drive receiving shaft 136 is fixed to a fixing bracket or the like of the frame 17, and the sprocket 46.4 is attached to the output shaft 45 of the planted clutch case 19.
7 and chain 48, the planted input shaft 142 is supported by the receiving shaft 136, the sun gear 143 is fixed to the receiving shaft 136 in the first rotary case 130, and the output shaft 14
4 is connected to the planetary gear 145 through the idle gear 147 of the intermediate shaft 146, the planetary gear 145 and the idle gear 147 have the same number of teeth, and the gear ratio of the sun gear 143 and these gears 145 and 147 is 3: 2. When the first rotary case 130 makes one rotation in one direction, the output shaft 144 is made to make 1/2 rotation in the opposite direction.

Further, the second rotary case 131 is arranged on the right side of the first rotary case 130, the center of the second rotary case 131 is fixed to the output shaft 144, and the outer shaft 148 rotatably supporting the output shaft 144. One end of the first
The outer shaft 148 is fixed while being fixed to the rotary case 130.
The other end of the second rotary case 130 is exposed to the inside of the second rotary case 130 to fix the sun gear 149 to the outer shaft 148, and the planetary gear 151 of the output shaft 150 at both ends of the second rotary case 131 is inserted through the idle gears 153 and 154 of the intermediate shaft 152. The sun gear 149 is connected, and the outer shaft 148 and the intermediate shaft 152 are the sun gear 149 and the idle gear 153 having a gear ratio of 2: 3, and the intermediate shaft 152 and the output shaft 150 are the idle gear 154 having a gear ratio of 1: 2. By connecting with the planetary gear 151, the output shaft 150 is connected to the outer shaft 148 with a gear ratio of 1: 3.
Are connected with.

In FIG. 28, one rotation of the first rotary case 130 around the input shaft 142 in the clockwise direction (the direction of the solid arrow) causes the second rotary case 131 to rotate counterclockwise around the output shaft 144. Direction (dashed arrow direction)
2nd rotary case 1
The output shaft 150 of No. 31 is kept stationary while keeping the rotation at 0, and one rotation of the second rotary case 131 causes the output shaft 150 to rotate on the output shaft 150 in a substantially triangular basic locus K as shown in FIG.
Is configured to exercise.

Further, a base plate 155 is provided on the tip side of the output shaft 150 which is projected to the right outside of the second rotary case 131.
And the base plate 155 is swingably supported by the base plate 155 through the swing fulcrum shaft 156 so that the middle of the claw arm 157 can be swingably supported, and the left and right receiving cylinders 158 fixed to the inner bent plate portion 157a at one end of the claw arm 157 are fixed. The left and right claw bodies 133 and 134 are supported by the left and right claw rods 159 and 160 so as to be openable and closable.

Further, the inner shaft 161 is rotatably inserted in the output shaft 150 of the second rotary case 131, and
While fixing the left end of 1 to the rotary case 131,
The swing cam 132 is fixed to the right end of the inner shaft 161, and the cam roller 163 attached to the shaft 162 at the other end of the claw arm 157 is brought into contact with the outer peripheral cam surface 132a of the swing cam 132 to rotate the second rotary case 131. In conjunction with the above, the swing cam 132 is operated to cause the seedling planting claw 23 to swing upward and downward.

As shown in FIGS. 31 to 33, the concave cam 164 and the convex cam 1 are provided on the left and right claw rods 159 and 160.
The left and right open / close plates 166 and 167 for engaging 65 are fixed, the open / close cam plate 168 is fixedly mounted on the right side surface of the output shaft 150 of the second rotary case 131, and the outer side of the cam plate 168 centered on the inner shaft 161 is fixed. An opening / closing cam 135 having an arcuate convex portion is integrally provided on the circumference of the side surface, and a slider 170 attached to the tip of the lower bent portion 166a of the left opening / closing plate 166 is slidably contacted with the opening / closing cam 135, while a receiving tube 158 is provided. A closing torsion coil spring 171 is provided between the outer claw arm bending plate 157a and the right open / close plate 167, and the left and right claw bodies 133 and 13 are operated by the action of the open / close cam 135 in conjunction with the rotation of the second rotary case 131.
4 is configured to be opened and closed. The slider 170 is provided on an extension line of the swing fulcrum shaft 156, and the swing center (swing fulcrum shaft 156) of the seedling planting claw 23 and the slider 1 are provided.
The contact points of 70 are made to coincide with each other in a side view so that the nails can be accurately opened and closed without being affected by the swinging of the seedling planting nail 23.

Further, the base plate 155 and the claw arm 15
Between 7 is a torsion coil type swing spring 172 for upward movement of the nail.
The cam roller 163 is always in sliding contact with the cam surface 132a of the swing cam 132.

Further, as shown in FIG. 34, the left and right claw bodies 133 and 134 are bent inward to form a seedling pushing rod 173 between the left and right claw bodies 133 and 134.
A U-shaped seedling push-out plate 174 is disposed through the rod support 175 fixed to the bent plate portion 157a of the claw arm 157 so that the base end side of the rod 173 is slidably supported, and the rod is also supported. A compression spring 177 is provided between the fixed spring seat 176 of 173 and the rod receiver 175, and the spring 81 is compressed by using the forward input of the seedling take-out claw 23 that enters the seedling tray 22 at the time of taking out the seedlings, and the left and right claw bodies When the 133 and 134 are opened, the force of the compression spring 177 pushes the pushing plate 174 to promote the release of the seedling N held by the claws 133 and 134.

Then, as shown in FIGS. 28 and 35, the first
When the rotary case 130 makes one rotation in the clockwise direction (solid arrow direction) around the input shaft 142, the second rotary case 131 is made to make 1/2 rotation in the counterclockwise direction (arrow direction indicated by the broken line) about the output shaft 144. Also, the rotation of the output shaft 150 of the second rotary case 131 is stopped and maintained even during rotation of the first and second rotary cases 130 and 131, and the output shaft 150 is rotated during rotation of the case 131 around the shaft 144. 150 is moved along a basic locus K of a substantially triangular shape as shown in FIG. 36, and during this movement, seedlings are planted by a relative change of a swing cam 132 integral with the case 131 and a swing roller 163 connected to and supported by the output shaft 150. The claw 23 is caused to perform a swinging motion, the seedling planting claw 23 is interlocked vertically with the substantially oval planting locus A, and the seedling N is taken out from the seedling tray 22 and then planted on the ridge M of the field. A series of planting work is performed in a single seedling planting claw 23.

As a result, when the first rotary case 130 makes two rotations in the clockwise direction and the second rotary case 131 makes one rotation in the counterclockwise direction, each seedling planting claw 23 forms one loop of the planting locus A. , 180 degrees out of phase by the seedling planting claw 23, which is planted twice.
3. As shown in FIG. 35, during the movement of the seedling planting claw 23 along the locus A, the slider moves at the planting position 225 ° where the seedling planting claw 23 moves to the lowermost position or the planting position 255 ° immediately after the planting. When the opening start position b or the opening end position c of the opening / closing cam 135 is slidably contacted with 170 and the position immediately before the uppermost movement of the seedling planting claws 330 is 330 ° or the uppermost moving seedling taking position is 0 °, the opening / closing cam 135 starts closing. The position d or the closing end position e is brought into sliding contact with the slider 170 to open and close the seedling planting claw 23 accurately synchronized with the planting locus A to improve the removal of the seedling N and the planting accuracy. is there.

As is apparent from the above, the seedlings N with the seedlings 21 taken out and planted in the field are supported by the rotary cases 30 and 131, and the nails 23 with the seedlings are also planted.
Pivoting cams 35 and 132 for oscillating are arranged in the rotary cases 30 and 131, and the shafts 40 and 161 which are the fulcrum portions of the seedling planting claw 23 are moved along the locus K of the substantially triangular shape, and the fulcrum portions are also moved. The seedling planting claw 23 is swung about the axis 40/156 of the A, and the tip of the seedling planting claw 23 is moved to the seedling planting locus A.
The rotary case 30/13
A required planting locus A is formed by a combination of the rotational movement of 1 and the swinging motion of the planting claws 23, and a series of operations from seedling removal to planting can be easily performed with a single planting claw 23. In addition to being able to make it possible, it is possible to freely form the required planting locus A and improve the degree of freedom in forming the planting locus A.

Further, the cam surface 3 of the swing cams 35 and 132
By disposing the cam rollers 66 and 163 that are in contact with the 5a and 132a to the seedling planting claw 23, the seedling planting accurately synchronized with the rotation of the rotary case 30 and 131 by the cam rollers 66 and 163 provided in the seedling planting claw 23. A spring 69, which is a cam follow-up member that can perform a swinging motion of the attached claw 23 to form the required planting locus A with high accuracy and constantly rolls the cam rollers 66 and 163 on the cam surfaces 35a and 132a, By providing 172, it is possible to perform the swinging operation of the seedling planting claw 23 that accurately follows the rotating swinging cams 35 and 132 of the rotary case 30 and 131, thereby improving the performance in high-speed planting work and the like. Can be planned.

Further, the right and left nail bodies 64.6 of the nail 23 with seedlings
By disposing the opening / closing cams 39/135 for opening / closing 5,133 / 134 in the rotary case 30/131, the nail bodies 64/65, 133/134 synchronized with the movement of the seedling planting nail 23 on the locus A for planting. Can be easily opened and closed, and good seedling removal and seedling planting can be performed to improve planting accuracy.

[0036]

As is apparent from the above embodiments, according to the present invention, the rotary members 30 and 131 support the seedling planting claws 23 for taking out the seedlings N from the seedling tray 22 on the seedling table 21 and planting them in the field. At the same time, swing cams 35 and 132 for swinging the seedling planting claw 23 are provided on the rotary members 30 and 131, and the fulcrum portions 40 and 161 of the seedling planting claw 23 are moved along the locus K of a substantially triangular shape. Together with the fulcrum portion 40 (fulcrum shaft 1
56) as the center, the seedling planting claw 23 is swung and the tip of the seedling planting claw 23 is moved along the seedling planting locus A. Therefore, the rotary motion of the rotary members 30 and 131 and the seedling planting claw 2
The required planting locus A is formed by the combination of the swinging movements of No. 3 so that a series of operations from seedling removal to planting can be easily performed with a single seedling planting claw 23, and the required planting can be performed. The attached locus A can be freely formed, and the degree of freedom in forming the planted locus A can be improved.

Further, the cam surface 3 of the swing cams 35, 132
Since the cam rollers 66 and 163 that are in contact with the 5a and 132a are arranged in the seedling planting nail 23, the seedling planting nail 23
By using the cam rollers 66 and 163 provided in FIG. 1, the seedling planting claw 23 can be swung accurately in synchronization with the rotation of the rotary members 30 and 131, and the required planting locus A can be formed with high accuracy. .

Further, since the cam followers 69 and 172 for constantly rolling contact with the cam rollers 66 and 163 are provided on the cam surfaces 35a and 132a of the swinging cams 35 and 132, the rotating heads of the rotary members 30 and 131 are rotated. Swing cam 35
It is possible to improve the performance in high-speed planting work by causing the seedling planting claw 23 to perform a swinging motion of the seedling planting claw 23 that accurately follows 132.

The left and right nail bodies 64.6 of the nail 23 with seedlings
Since the opening / closing cams 39/135 for opening / closing 5, 133/134 are provided on the rotary members 30/131, the nail bodies 64/65 synchronized with the movement of the seedling planting nail 23 on the planting locus A, It is possible to easily open and close the 133 and 134, and to perform good seedling extraction and seedling planting, thereby improving the planting accuracy.

[Brief description of drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall plan view.

FIG. 3 is a drive explanatory diagram of a transplantation unit.

FIG. 4 is an explanatory plan view of a transplanting part.

FIG. 5 is an explanatory side view of the transplantation part.

FIG. 6 is a drive explanatory view of the seedling planting device.

FIG. 7 is a side view of the seedling planting device.

FIG. 8 is an explanatory plan view of the seedling planting device.

FIG. 9 is a side view of the nail portion with a seedling plant.

FIG. 10 is an explanatory diagram of a rotary link unit.

FIG. 11 is an explanatory plan view of a rotary case portion.

FIG. 12 is a side view of a swing cam portion.

FIG. 13 is an explanatory plan view of the nail portion with a seedling plant.

FIG. 14 is an explanatory plan view of the nail portion with a seedling plant.

FIG. 15 is an explanatory diagram of a claw opening / closing portion.

FIG. 16 is an explanatory diagram of a cam plate portion.

FIG. 17 is an explanatory view of the 0 ° and 180 ° positions of the nail with a seedling.

FIG. 18 is an explanatory view of the 45 ° and 225 ° positions of the nail with a seedling.

FIG. 19 is an explanatory view of the 90 ° and 270 ° positions of the nail with seedlings.

FIG. 20 is an explanatory view of the 135 ° and 315 ° positions of the nail with a seedling plant.

FIG. 21 is an explanatory diagram of a movement trajectory of a nail with a seedling.

FIG. 22 is an explanatory diagram of a basic locus of a nail with a seedling.

FIG. 23 is an explanatory plan view of the forced seedling pusher unit.

FIG. 24 is a side view of the forced seedling pusher unit.

FIG. 25 is an operation explanatory view of the forced seedling pushing tool.

FIG. 26 is an explanatory diagram for driving the transplantation unit.

FIG. 27 is an explanatory side view of the transplantation part.

FIG. 28 is a side view of the rotary case portion.

FIG. 29 is a sectional view of a rotary case portion.

FIG. 30 is an explanatory view of driving the nail with seedling planting.

FIG. 31 is an explanatory view of opening and closing the nail portion with a seedling plant.

FIG. 32 is an explanatory diagram of a swing cam portion.

FIG. 33 is an explanatory diagram of an opening / closing cam portion.

FIG. 34 is an explanatory view of a seedling take-out plate portion.

FIG. 35 is an explanatory view of opening and closing the seedling take-out nail.

FIG. 36 is an explanatory diagram of a basic locus of the seedling take-out nail.

[Explanation of symbols]

21 seedling stand 23 Nails with seedlings 30 rotary case 35 Pivoting cam 35a cam surface 39 Open / close cam 40 connecting shaft (fulcrum) 64/65 claw body 66 cam roller 69 spring (cam follower) 131 rotary case 132 Swing cam 132a cam surface 133.134 Claw body 135 open / close cam 161 Inner shaft (fulcrum) 163 cam roller 172 spring (cam follower)

Claims (4)

[Claims] 1. A rotary member is provided with a swinging cam for swinging the seedling planting claw while supporting the seedling planting claw for taking out the seedling from the seedling tray on the seedling mounting table and planting it in the field. Then, the fulcrum part of the seedling-planting nail is moved along the substantially triangular locus K, and the seedling-planting nail is swung about the fulcrum part to move the tip of the seedling-planting nail along the seedling-planting locus A. A vegetable transplanter characterized by 2. The vegetable transplanting machine according to claim 1, wherein a cam roller rolling on the cam surface of the swing cam is provided on the seedling planting claw. 3. The vegetable transplanter according to claim 2, wherein a cam follower member for constantly rolling the cam roller on the cam surface of the swing cam is provided. 4. The rotary member is provided with an opening / closing cam for opening / closing the right and left nail bodies of the nail with planting seedlings.
The listed vegetable transplanter.