JP3434390B2 - Seedling transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a seedling transplanter for transplanting crop seedlings such as vegetable seedlings into a field (field).

[0002]

2. Description of the Related Art Recently, vegetable seedlings have been efficiently grown using a synthetic resin seedling tray and then transplanted to the field. That is, after putting the bed soil into the pot portion formed and arranged in a matrix view in a seedling tray made of a synthetic resin thin plate, sowing seeds of vegetables and growing seedlings of an appropriate size, the seedlings of each seedling are put into practice. No. 48413, No. 3-95718, No. 4-7141
No. 3 and Japanese Patent Application Laid-Open No. 5-30816, a seedling transplanter for transporting a seedling tray to a seedling transplanter traveling in a field, and a pair of picking claws from a pot portion of the seedling tray. Equipped with a seedling take-out mechanism that picks up the seedlings, and an opening / closing transplantation cup for receiving the seedlings from this seedling take-out device and transplanting the seedlings to the field, picking out the seedlings from each pot part in this seedling tray, The seedling transplantation mechanism is used for transplanting to the field.

By the way, the vertical feeding mechanism in the seedling placing table disclosed in Japanese Utility Model Laid-Open No. 3-95781 is for an endless conveying belt for vertically conveying while supporting the lower surfaces of a plurality of pots within the lateral width of the seedling tray. Consisting of a cylindrical pulley and a pair of large-diameter guide discs arranged on both left and right ends of the pulley, this stabilizes a thin synthetic resin flexible seedling tray that is easily deformed. It is proposed to carry it.

[0004]

However, in the structure of the prior art, the number of required parts is large, the structure is complicated, and a wide endless conveyor belt and pulley and a total of four large-diameter guide disks are used. There was a problem that it was bulky. Moreover, since the large-diameter guide disks at the left and right ends guide the outside of the pot parts at the left and right ends of the seedling tray,
When arranging multiple seedling trays in parallel, it is necessary to make a large gap in the left-right direction so that adjacent guide disks do not interfere with each other. Then, when the distance between adjacent planting strips is narrowed, there is a problem in that the space can be restricted by the above-mentioned gap in the left-right direction, and the lateral width dimension of the seedling stand becomes large and bulky.

Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a seedling transplanting machine having a simple structure and a seedling mount which is not bulky.

[0006]

In order to achieve the above-mentioned object, the seedling transplanting machine according to the invention of claim 1 has a plurality of seedling trays in which pot sections of seedlings are arranged in a matrix in a plan view. A seedling mounting table for placing and transporting, a seedling removing mechanism for picking seedlings from the pot section of each seedling tray with a pair of picking claws, and a seedling receiving mechanism for receiving seedlings from this seedling removing mechanism and transplanting them to the field In a seedling transplanting machine for multiple-row planting, which comprises a seedling transplanting mechanism having an openable / closable transplanting cup, the vertical feeding means of the seedling tray in the seedling mounting table is provided with an appropriate vertical feed direction interval of the pot portion. The horizontal rods arranged at a pitch and shorter than the lateral width dimension of each seedling tray, and a rotary driving body for intermittently driving the horizontal rods in the vertical direction to support the middle portion of the horizontal rods. The rotary drive within the width of each seedling tray What it is obtained by arranged between the pot part arranged in the width direction.

The invention described in claim 2 is the same as claim 1
In the seedling transplanter described above, the vertical feed means is a chain sprocket that rotates intermittently, an endless transfer chain that is wound around the chain sprocket, and an endless transfer chain that is attached to the endless transfer chain and has an appropriate pitch in the vertical feed direction interval of the pot portion. It is composed of a horizontal rod arranged in. Further, the invention according to claim 3 is the seedling transplanting machine according to claim 1, wherein a pair of left and right rotating discs for intermittently rotating the longitudinal feed means, and a pot on the outer peripheral surface of both the rotating discs. And a horizontal rod mounted at an appropriate pitch in the longitudinal feed direction of the parts.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. In FIG. 1, reference numeral 1 indicates a traveling body, and the traveling body 1 includes a steering handle 4 and a steering seat 5.
A vehicle body frame 2 including a vehicle body frame 2, a bonnet cover 3 for covering an engine (not shown) on an upper surface of a front portion of the vehicle body frame 2, a pair of left and right front wheels 6 and rear wheels 7 for supporting the front and rear portions of the vehicle body frame 2. It is composed of and.

Reference numeral 8 indicates a transplanting device disposed behind the traveling vehicle body 1. The transplanting device 8 is the traveling device 1.
On the other hand, it is mounted so as to be able to ascend and descend via a pair of upper and lower elevating link mechanisms 9, and is moved up and down by the vertical movement of an elevating arm 10 by a hydraulic cylinder provided at the rear of the traveling vehicle body 1. It is configured. Further, in the present embodiment, the two-row planting type transplanting device 8 is composed of a flexible soft synthetic resin material in which a large number of pot portions A1 for growing seedlings are formed in a matrix in plan view. One seedling tray A for placing two seedling trays A in parallel to the left and right in the traveling direction of the traveling machine body 1 and simultaneously transporting the seedling trays A in the traveling direction, In order to take out the pot seedlings from the pot portion A1, two seedling take-out mechanisms 12 and 12 composed of picking claws 60 and the like, and reciprocating between the respective seedling take-out mechanisms 12 and the field were taken out by the seedling take-out mechanism 12. 2 for planting seedlings in the field
The seedling transplantation device 8 is configured to be supported by the front wheels 14 and the rear wheels 15 in the field (see FIG. 1).

As shown in FIG. 2, FIG. 5 and FIG. 9, the seedling placing table 11 is disposed above the lifting link mechanism 9 with its upper end inclined so as to approach the traveling vehicle body 1. Moreover, in the seedling placing table 11, the lateral movement of the traveling machine body 1 is intermittently laterally performed in the lateral direction of the traveling machine body 1 so as to have a stop section at each left-right interval L1 of the pot portion A1 in the seedling tray A,
The seedling table 11 is configured to reciprocate left and right such that the seedling table 11 moves laterally in the opposite direction at the end of this lateral movement, and the lower chain sprocket 11e is intermittently moved by the vertical feed means 22 provided on the seedling table 11. And the pot portion A1 is intermittently vertically fed by one pitch (vertical space L2 of the pot portion A1) along the traveling direction of the traveling machine body 1 at the end of the transverse feed. Is.

That is, as the vertical feeding means, the pot portion A1
The horizontal rods 17 arranged at an appropriate pitch in the vertical feed direction and shorter than the lateral width of each seedling tray A, and a rotary drive member for intermittently driving the horizontal rods 17 in the vertical direction. The rotation driving body is arranged within the lateral width of each seedling tray and between the pot portions arranged in the width direction so as to support the middle portion of the horizontal rod 17.

As a first embodiment of the vertical feeding means, as shown in FIGS. 9 and 10, the pair of left and right transfer chains 11c, 11c as a component of the rotary driving member has an integral multiple of the pitch L2. Lateral horizontal rods 17 are mounted at a pitch, and the left and right horizontal rods 17 are engaged with the lower surface side of the continuous portion of the pot portions A1 lined up in the transport front-rear direction in the seedling tray A to securely perform the operation shown in FIG. It is configured to be vertically conveyed in the direction of the lower chain sprocket 11e in FIGS. 5 and 9.

Further, the round rod-shaped horizontal rod 17 is formed so that its length is shorter than the horizontal width H1 of the seedling tray A, and a pair of left and right lower chain sprockets 11e, 11e and an upper portion as components of the rotary drive body are formed. Chain sprocket 11
d and 11d are connected and fixed by a connecting pipe 11f, and a pair of left and right chain sprockets 11d, 11d and 11e,
The distance between 11e is set to be at least inside the pot parts A1 and A1 at the left and right ends of the seedling tray A, and at the bottom surface position of the left and right connected parts of the pot part A1.

By constructing the vertical feeding means of the seedling tray A as described above, the left and right end portions of each horizontal rod 17 are provided at the transport chain 1.
1c and the chain sprockets 11d and 11e are projected laterally, and the lateral rods 17 do not project from the left and right side ends of the seedling tray A. It can be fed vertically while being supported by the bottom surface.

When the seedling trays A are arranged in parallel on the left and right, the horizontally adjacent rods 17, 17, the upper chain sprockets 11d, 11d and the lower chain sprockets 11e, 11e do not interfere with each other. Even when the left and right arrangement intervals of the two seedling trays A are changed to reduce the row interval of the two-row planting, the side edges of the two seedling trays A can be brought close to each other. In this way, when changing the spacing between the planting strips, the bolt 11 with the connecting pipe 11f moved laterally with respect to the vertical feed shaft 112a and the support shaft 112b is used.
You can stop it.

11 and 12 show a second embodiment of the vertical feeding means 22 in the seedling placing table 11, which is a pair of left and right rotating discs 120 and 120 as rotational driving bodies, and both of the rotating discs 12 and 120. And a rod-shaped horizontal rod 121 mounted on the outer peripheral surface of the pot portion A1 at an appropriate pitch in the longitudinal feed direction, and connecting the rotating discs 120, 120 with a connecting pipe 122, This connecting pipe 122 is connected to the vertical feed shaft 112.
It is slidably fitted to a and fixed with a bolt 123 at an appropriate position. Also in this case, the length of the horizontal rod 17 is the seedling tray A.
Is formed so as to be shorter than the horizontal width dimension H1 of the pot, and the distance between the pair of left and right rotating discs 120, 120 is at least inside the pot portions A1, A1 at the left and right ends of the seedling tray A, and the left and right sides of the pot portion A1. Set so that it is located at the bottom surface of the continuous portion.

With this configuration, as in the above-described embodiment, the horizontal rods 17 do not project from the left and right ends of the seedling tray A, and substantially the entire width of the seedling tray A is supported by the lower surface of the connection portion between the pot portions. It can be fed vertically in the state. When the seedling trays A are arranged in parallel on the left and right, the lateral rods 17, 17 and the rotating disks 120, 120 that are horizontally adjacent do not interfere with each other, so that the lateral spacing of the seedling tray A can be shortened. it can. As shown in FIGS. 11 and 12,
On the upstream side of the vertical feed of the seedling tray A, by disposing a vertically long guide plate 124 along the left and right connecting portions of the pot portion A1 in the seedling tray A, the middle portion of the seedling tray A is bent,
It is possible to reliably guide in the direction of the vertical feeding means 22 without moving diagonally.

In the third embodiment shown in FIGS. 13 and 14,
The upper and lower chain sprockets 11d and 11e and the transport chains 11c to be wound around them can be passed vertically in the middle of the seedling tray A in the width direction and the lower surface of the connecting portion of the left and right pot parts A1 and A1. It is to be placed. Then, rod-shaped horizontal rods 17 are attached to the transport chain 11c at an appropriate pitch of the longitudinal feed direction intervals of the pot portions A1, and the length of the horizontal rods 17 is left and right adjacent to the pot portions A1. It only extends to A1. Also in this case, the vertically long guide plate 12 that guides the place where the pot portion A1 is continuously provided at the horizontal position where the transport chain 11c is not arranged.
4 is preferably provided.

With this structure as well, it is possible to achieve substantially the same actions and effects as those of the first and second embodiments. Further, on the seedling placing table 11, a support guide rod 11a that supports the lower surface side of each tray A so that the tray A slides downward, and the tray A slides downward on the upper surface side of the tray A. Pressing guide rod 11 for guiding to
b is provided.

A guide member 16 for the tray A is arranged on the lower surface side of the seedling placing table 11 in an inclined manner, and a lower end portion 16a of the guide member 16 is arranged at a lower portion of the seedling placing table 11. While being curved along the outer circumference of the chain sprocket 11e, the upper end portion 16b of the guide member 16 is configured to be inclined so as to approach the traveling vehicle body 1.

The power transmission mechanism to the seedling transplanting device 8 is
As shown in FIG. 8, P which is projected from the rear part of the traveling body 1
The rotary power of the TO shaft (not shown) is applied to the bevel gear box 1
Bevel gear in 02, chain sprocket 103a, 1
03c and a chain 103b to transmit to a common input shaft 104 that is long in the lateral direction, and from this common input shaft 104, two pairs of seedling take-out mechanisms 12 and 12 and seedling transplantation mechanisms 13 and 13 are transmitted.
Power is transmitted to the chain via a chain or chain sprocket.

The lateral feed means 21 of the seedling table 11 has a gear power transmission mechanism 106 in the mission case 20 provided on the transmission downstream side of the common input shaft 104 for the two pairs of the seedling take-out mechanism 12 and the transplantation mechanism 13. Via the lateral feed shaft 107 on which the reciprocal feed screw portion 107a is formed, and the boat-shaped key-equipped feed block 1 screwed to the reciprocal feed screw portion 107a.
08 and an engaging piece such as an engaging bolt protruding from the frame of the seedling table 11 and attached to the feed block 108. The gear power transmission mechanism 106 has an intermittent rotation cam mechanism 109 as an intermittent drive mechanism. Is inserted. As described above, the intermittent rotation cam mechanism 109 intermittently laterally moves in the lateral direction of the traveling machine body 1 so as to have a stop section at each left-right interval L1 of the pot portion A1 in the seedling tray A,
The seedling placing table 11 is configured to reciprocate left and right in the lateral direction of the seedling tray A.

Further, a pair of kicks provided on the vertical feed drive shaft 110 of the vertical feed means 22 at a distance of the horizontal feed distance.
The chain sprocket 11e and the like are attached to the claws 111, 111.
Kick the driven cam 113 provided on the attached vertical feed shaft 112a.
The vertical feed shaft 112a is moved laterally to move the seedling table 11.
The pot portion A1 is intermittently vertically fed by a constant pitch L2 by intermittently rotating at the end position .

Next, with reference to FIGS. 4 and 5, seedling transplantation having a swinging arm 31 that swings up and down, a transplanting cup 32 for holding seedlings to be transplanted, etc. at the tip of the swinging arm 31. The structure of the mechanism 13 will be described. That is, the rotation case 34 is attached to the output shaft 33 protruding to one side of the mission case 20.
The inner chain sprocket 35 is attached, and the chain 38 is wound around the chain sprocket 37 and the chain sprocket 35 fitted to the rotary shaft 36 on the free end side of the rotating case 34 to transmit power.

A rotary case 40 is rotatably fitted to one outer 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. An intermediate gear 41 meshing with 39 and a planetary gear 42 meshing with it are rotatably supported in a 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 support shaft 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 which is erected at an appropriate place such as a frame so as to be substantially vertical to the ground. The transplantation cup 32 is a pair of cup bodies 32a, 32, which is a substantially conical shape that constricts downwards and is halved in front and rear
The rotation supporting shafts 49a and 49b, which are composed of b and are fixed to the upper ends of the cup bodies 32a and 32b, are rotatably supported by the support plate 50 protruding from one side of the swing arm 31. , Both rotation support shafts 49a and 49b are configured to rotate in opposite directions via a link mechanism 51 having an X-shape in a side view, which is formed by pivotally connecting two link pieces with a pin. In addition, the link mechanism 51 has a pair of cup bodies 32a, 3
The lower end of 2b is urged by a spring 52 in a direction in which it is always closed. In addition, the push rod 5 connected to the link mechanism 51.
The base end of 3 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 the crank arm 4 described above.
5 is provided so as to be in constant contact with the cam 54 that fits on the tip end shaft 46 of the No. 5 and rotates integrally.

With this configuration, when the rotary case 40 is rotated clockwise by the rotation of the output shaft 33 via the chain sprockets 35, 37 and the rotary shaft 36 in FIG.
By the meshing rotation of the sun gear 39, the intermediate gear 41, and the planetary gear 42, the crank arm 45 rotates counterclockwise in FIG. 4, and the swing arm 31 connected to the crank arm 45 is centered on the guide roller 47. Since it moves vertically along the guide rail 48 while swinging back and forth, the transplanting cup 32 moves up and down along the locus 55 (only a part of the upper side is shown) of FIG. To the field. Further, in the transplantation cup 32, the lower ends of the pair of cup bodies 32a and 32b are closed at the upper position,
Therefore, the posture can be maintained even if a seedling (not shown) to be transplanted is inserted from above. On the other hand, when the transplantation cup 32 descends and the lower ends of the cup bodies 32a and 32b pierce the soil surface of the field, the push rod 53 is pushed out by the cam 54, and the both rotation support shafts 49a, 49a via the link mechanism 51. Four
9b are rotated in the opposite directions to each other, and cup bodies 32a, 3
Since the lower end of 2b opens, the seedlings inside can be transplanted to the field.

Next, the construction of the seedling take-out mechanism 12 including the picking claw 60 and the like will be described with reference to FIGS. The bracket 67 fixed to the seedling transplanting device 8 so that the pair of left and right picking claws 60 in the seedling removing mechanism 12 are arranged above the transplanting cup 32 described above.
A support plate 68 is fixed to the support plate 68, and an input shaft 71 to which power is transmitted from the mission case 20 via a chain and a chain sprocket 63 is rotatably provided on the inner circumference of a sun gear 70 fixed to the support plate 68. The other end of the input shaft 71 is fitted to the rotary case 72 and is integrally rotated.

A sun gear 70 is provided in the rotary case 72.
An intermediate gear 73 meshing with the crankshaft 74 and a planetary gear 75 fixed to the crankshaft 74 and meshing with the intermediate gear 73 are internally provided, and a crank arm 76 mounted on the crankshaft 74 is mounted.
A seedling taking-out arm 78 having a pair of left and right picking claws 60 at one end is rotatably fitted to the cam shaft 77 protruding from the tip of the. The guide shaft 79 protruding from the other end of the seedling picking arm 78 is slidably fitted into a substantially arcuate guide groove 81 of a guide plate 80 fixed in parallel with the support plate 68, and the input One rotation of the rotary case 72 around the shaft 71 causes the pair of pinching claws 60, 6 to rotate.
As shown in FIG. 6, 0 is configured to follow the trajectory 82 of returning to the original position after the picking claw pierces the pot portion A1 of the seedling tray A and holds the seedling.

Further, the base end mounting pieces 83, 83 of the pair of left and right picking claws 60, 60 are fixed to the L-shaped pivots 84, 84, and each of the pivots 84 is a spectacle-shaped mounting portion of the seedling picking arm 78. 78a is rotatably mounted, and the spring 85 connecting the left and right mounting pieces 83, 83 urges the tip ends of the pair of left and right gripping claws 60, 60 in a direction in which they are always closed.

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 base ends of the pair of left and right gripping claws 60, 60 are provided. When the abutting pieces 88, 88 of a spherical shape or the like protruding so as to face each other from the mounting pieces 83, 83 ride on and abut on the end surface cam portions 87, 87, the tips of both the picking claws 60, 60 are the springs 8.
It is configured to open against the force of 5.

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. Picking nail 6
The both end annular portions 91a are urged to move toward the tips of the picking claws 60, 60 by springs 93 which are slidably fitted to the 0 and 60 and mounted on the mounting plate 90 and the seedling picking arm 78. Has been done. Then, the rollers 92 attached to the mounting plate 90
Is constantly in contact with the peripheral surface (circumferential cam portion) of the cam plate 86, and a recess 86a in a predetermined rotation section of the cam plate 86 is formed.
When the roller 92 is located (when the pot seedling pierced and pinched by the picking claws 60, is located above the transplantation cup 32), the pot seedling is formed at the tip annular portions 91a of both the extruding tools 91. The pot seedlings are pushed out and pulled out from the picking claws 60, and the seedlings are discharged into the transplanting cup 32.

With the above structure, while the traveling machine body 1 is moved forward, power is transmitted to the PTO shaft to operate the seedling transplanting device 8 so that the left and right seedling take-out mechanisms 12 and the transplanting mechanism 13 have the same operation cycle. In the lateral movement stop section of the platform 11, the seedlings are taken out from the pot portions A1 of the left and right seedling trays A1 by the respective picking claws 60, and the seedlings are transferred to the left and right transplanting cups 32, 32 to be transplanted to the field. The parallel two-row planting work is executed.

Although the above-mentioned embodiment has been described with respect to the riding type seedling transplanting machine, it is needless to say that it can be applied to a walking type seedling transplanting machine, and can also be applied to the case where three or more rows are planted.

[0035]

As described in detail above, the first aspect of the present invention is as follows.
The seedling transplanting machine according to the invention is a seedling placing table for placing and transporting a plurality of seedling trays in which the seedling pot portions are arranged in a matrix in a plan view, and the pot portion of each seedling tray. A plurality of seedling transplanting mechanisms including a seedling removing mechanism for picking up seedlings with a pair of picking claws from the seedling, and an opening / closing transplanting cup for receiving seedlings from the seedling removing mechanism and transplanting them to the field. In the seedling transplanting machine for row planting, the vertical feeding means of the seedling tray in the seedling mounting table, a horizontal rod arranged at an appropriate pitch of the longitudinal feed direction interval of the pot portion and shorter than the lateral width dimension of each seedling tray, The horizontal rod is constituted by a rotary driving body for intermittently driving and driving in the vertical direction, and the rotary driving body is arranged within the lateral width of each seedling tray in the width direction so as to support the middle part of the horizontal rod. It is arranged between the arranged pot portions.

Therefore, since the horizontal rods are located between the pot portions arranged in the vertical direction of the seedling tray, the seedling trays can be intermittently moved in the vertical direction by the horizontal rods along with the intermittent movement of the rotary drive member. Since the length of this horizontal rod is shorter than the lateral width dimension of the seedling tray and the position of the rotary drive is also within the lateral width of the seedling tray, it is arranged between the pot portions arranged in the width direction. Even if the seedling trays arranged in parallel on the left and right are brought close to each other so as to narrow the additional strip interval, the horizontal rods and the rotary driving bodies do not interfere with each other. Further, the structure is extremely simple because it includes only the rotary drive body and the horizontal rod, and there is an effect that it is not bulky.

The invention described in claim 2 is the same as claim 1.
In the seedling transplanter described above, the vertical feed means is a chain sprocket that rotates intermittently, an endless transfer chain that is wound around the chain sprocket, and an endless transfer chain that is attached to the endless transfer chain and has an appropriate pitch in the vertical feed direction interval of the pot portion. It is composed of a horizontal rod arranged in. That is, since the rotation driving body has a short width in each of the chain sprocket and the endless transfer chain, there is no difficulty in arranging between the pot portions arranged in the width direction within the lateral width of each seedling tray,
When the arrangement intervals of the left and right seedling trays are shortened, the parts do not interfere with each other. Further, it becomes easy to arrange the rotary drive body composed of the chain sprocket and the endless transfer chain in a plurality of rows or in a single row within the lateral width of the seedling tray. And when this rotary drive body is arranged in a plurality of rows, the horizontal rod is provided so as to straddle the rotary drive bodies of the plurality of rows, thereby ensuring the vertical feeding action without bending the seedling tray in the width direction or the like. The effect is that it can be executed.

Further, the invention according to claim 3 is the seedling transplanter according to claim 1, wherein a pair of left and right rotating discs for intermittently rotating the longitudinal feed means and outer peripheral surfaces of the rotating discs. And a horizontal rod mounted at an appropriate pitch in the longitudinal feed direction of the pot portion. Even in such a configuration, since the pair of left and right rotating discs serving as the rotation driving bodies are thin, the rotating discs are arranged between the pot portions arranged in the width direction within the lateral width of the seedling tray. It is easy to arrange the parts in the same manner, and the parts do not interfere with each other when the arrangement intervals of the left and right seedling trays are shortened.

Further, since the horizontal rod is simply arranged so as to straddle the outer peripheral surfaces of the pair of right and left rotating discs, there is also an effect that it is not bulky in the vertical feeding direction.

[Brief description of drawings]

FIG. 1 is a schematic side view of a riding type seedling transplanting machine.

FIG. 2 is a side view of a main part of a seedling table.

FIG. 3 is a side view of a main part of a seedling transplantation mechanism.

FIG. 4 is a sectional view of a main part of a seedling transplantation mechanism.

FIG. 5 is a side view of a main part of a seedling take-out mechanism.

FIG. 6 is a perspective view of a main part of a seedling take-out mechanism.

FIG. 7 is a sectional view of an essential part of a seedling take-out mechanism.

FIG. 8 is a skeleton diagram of a power transmission mechanism of the seedling transplantation device.

FIG. 9 is a perspective view showing a first embodiment of the vertical feeding means.

FIG. 10 is a sectional view of a main part of a first embodiment of a vertical feeding unit.

FIG. 11 is a perspective view showing a second embodiment of the vertical feeding means.

FIG. 12 is a cross-sectional view of the main parts of a second embodiment of the vertical feeding means.

FIG. 13 is a plan view showing a third embodiment of the vertical feeding means.

FIG. 14 is a plan view of an essential part of a second embodiment of the vertical feeding means.

[Explanation of symbols]

1 traveling aircraft 8 seedling transplanter 9 Lifting link mechanism 11 seedling stand 11c Transport chain 11d, 11e Chain sprocket 11f, 122 pipe 12 Seedling removal mechanism 13 Seedling transplantation mechanism 17,121 Yokoro 22 Vertical feed means 112a Vertical feed axis 120 rotating disk A tray A1 tray pot section

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-173005 (JP, A) JP-A-5-30816 (JP, A) Actually open Flat 6-3014 (JP, U) Actually open 4- 68618 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 350-367

Claims (3)

(57) [Claims] 1. A seedling mounting table for mounting and transporting a plurality of seedling trays in which pot portions of seedlings are arranged in a matrix in a plan view, and a pair of picking claws from the pot portion of each seedling tray. Seedlings for multiple-row planting, which are composed of a seedling removing mechanism for picking up seedlings at and a seedling transplanting mechanism having an openable / closable transplanting cup for receiving seedlings from the seedling removing mechanism and transplanting them to the field In the transplanting machine, the vertical feeding means of the seedling tray on the seedling mounting table is provided with a horizontal rod arranged at an appropriate pitch of the longitudinal feed direction of the pot portion and shorter than the width dimension of each seedling tray, and the horizontal rod is the vertical rod. And a rotary drive member for intermittently driving and transporting in a direction, and the rotary drive member is arranged within the lateral width of each seedling tray and arranged in the width direction so as to support the middle part of the horizontal rod. A seedling transplanter characterized by being placed in between. 2. A chain sprocket that intermittently rotates the vertical feed means, an endless transport chain that is wound around the chain sprocket, and an endless transport chain that is mounted on the pot sprocket at an appropriate pitch in the vertical feed direction. The seedling transplanting machine according to claim 1, wherein the seedling transplanting machine is constituted by the arranged horizontal rods. 3. A pair of left and right rotary discs for intermittently rotating the vertical feed means, and a horizontal rod mounted on the outer peripheral surfaces of the rotary discs at an appropriate pitch of the vertical feed direction interval of the pot portion. The seedling transplanting machine according to claim 1, which is configured by