JP2002125412A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent seedlings dropping out from a seedling carrier and enabling the carrier to carry out a good receiving of the seedlings and extrusion of the seedlings from the carrier in a seedling transplanter having the seedling carrier carrying seedlings picked out from a seedling tray to the upward of a seedling conveyer belt. SOLUTION: This seedling transplanter installs a drop out controller 70d on the seedling carrier 70 setting the carrier to become in a controlled situation preventing the drop out of the seedling from the carrier after receiving it and to cancel the controlled situation before picking out of the seedling, and drives the controller by a driving force transmitted trough a controller driving part 91 located on the opposite side of a traveling line of the seedling tray to the carrier. And a canceling actuator 95 working to cancel the controlled situation of the drop out controller 70d is located on the opposite side of the traveling line of the seedling tray to the seedling conveyer belt 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanter such as a rush transplanter for taking out seedlings from a pot of a seedling tray and planting the seedlings in a field.

[0002]

2. Description of the Related Art As a seedling transplanter using a seedling stored in a seedling tray, a seedling is taken out from a seedling tray conveyed along a predetermined seedling tray conveying path, and a seedling carrier receiving the seedling moves. There is a configuration in which seedlings are transported to a position above a seedling feed belt, where the seedlings are taken out of the seedling transporter, supplied onto the seedling feed belt, and the seedlings sent by the seedling feed belt are planted in a field.

[0003] The seedling carrier has a substantially concave seedling holding portion which is opened in front and rear and is notched in a rear view. The seedling holding portion accommodates a floor soil portion and the leaves are directed substantially horizontally. The seedlings are transported in a posture. In this case, there is a problem that the seedling is unstable when the bed soil portion of the seedling is simply stored in the seedling holding unit, and the seedling easily falls off from the seedling transport body during transportation. Therefore, as a falling-off control body to prevent the seedlings from falling off from the seedling carrier, they protrude into the seedling holding part when transporting the seedlings and bite into the soil of the seedlings, and from the seedling holding part when receiving and removing the seedlings. It is known to provide a locking claw that operates so as to retract.

[0004]

Conventionally, the lock claw operating mechanism is such that a cam plate fixed to a seedling tray transport path and a cam follower provided on a seedling transporter interact with each other as the seedling transporter moves. Thus, the lock claw is operated at a predetermined timing. Therefore,
The state of the lock claw was determined by the position of the seedling carrier. That is, when the seedling carrier is at the seedling receiving position, the lock claws are always retracted from the seedling holding unit, and the lock claws protrude into the seedling holder only when the seedling carrier starts moving.

[0005] When the lock claws operate as described above, the seedling carrier receiving the seedlings may drop off from the seedling carrier when starting to move. In particular, in the case of seedlings whose leaves are spread and grow like rush, the possibility of falling is increased because the leaves of adjacent seedlings interfere with each other. Further, the conventional lock claw operating mechanism has a complicated structure around the seedling carrier, so that the seedling receiving port of the seedling carrier cannot be made wide. For this reason, the resistance of the seedling when the seedling carrier receives the seedling is large, and the seedling holding unit may not be able to store the seedling in a good state.

Further, the seedling carrier is adapted to move along an arc-shaped stroke, and at the lower end of the stroke where the moving direction of the seedling carrier is substantially horizontal, the lock claw is retracted from the seedling holding portion, and the seedling carrier is moved. Seedlings are extruded from the carrier. The seedling pushing position is located below the seedling tray transport path and above the seedling feed belt. When a cam plate for retracting the lock claw from the seedling holding portion is provided in the seedling tray transfer path as in the conventional lock claw operating mechanism, the cam plate hinders the transfer of the seedling transfer body to the seedling tray. Since it cannot be moved deeply between the road and the seedling feeding belt, the horizontal moving distance of the seedling carrier cannot be long, and the seedling extrusion tends to be insufficient. In addition, since the moving radius of the seedling carrier is set to be large so that the seedling carrier does not interfere with the cam plate, the moving speed of the seedling carrier is high, and the seedlings are likely to be adversely affected during the transportation.

The present invention solves these conventional problems,
In order to prevent falling of the seedlings from the seedling carrier, the dropping regulators such as lock claws are operated at an appropriate timing, so that the seedlings of the seedling carrier can be received and the seedlings can be pushed out of the seedling carrier. The challenge is to do.

[0008]

Means for Solving the Problems In order to solve the above problems, the present invention is configured as follows. That is, the seedling transplanter according to the present invention takes out seedlings from a seedling tray conveyed along a predetermined seedling tray conveying path, and moves the seedling carrier receiving the seedlings to move the seedlings to a position above the seedling feed belt. The seedlings are taken out of the seedling carrier and fed onto a seedling feed belt, and the seedlings sent by the seedling feed belt are planted in a field. After that, it becomes a regulation state that regulates the dropping of seedlings from the seedling carrier, and a dropping regulator that operates so as to release the regulation state before the seedlings are taken out is provided. On the other hand, it is characterized in that it is configured to be driven by a driving force transmitted via a regulating drive section disposed on the opposite side of the seedling tray transport path.

The structure in which the falling-off regulating body is driven by the driving force transmitted through the regulating drive unit disposed on the opposite side of the seedling tray carrying path with respect to the seedling carrying body, and is related to the position of the seedling carrying body. Therefore, it is easy to operate the drop-out regulating body at an appropriate timing, and the drop-out regulating body can be brought into a regulated state after the seedling carrier receives the seedling. Further, with the above configuration, the structure of the periphery of the seedling carrier can be simplified, so that the leaves of the seedling can be prevented from interfering with the lock claw operating mechanism.

[0010] In the seedling transplanter having the above structure, a release action portion acting on the operating mechanism for releasing the restriction state of the falling-off restricting member is disposed on the opposite side of the seedling feed path from the seedling feed belt. This can also simplify the structure of the periphery of the seedling carrier.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment shown in the drawings will be described. This seedling transplanter 1 is for rushes, and a planting section 4 of six-row planting is mounted on the rear side of the riding traveling body 2 via a link device 3 so as to be able to move up and down. A fertilizer hopper 5a of the side fertilizer application device 5 and a fertilizer feeding device 5b for feeding fertilizer for each strip are provided.

The traveling vehicle body 2 has a pair of left and right steerable front wheels 6 and 6 that are driven and rotated, and a pair of right and left rear wheels 7 that are driven and rotated.
7, a transmission case 9 on the front side of the frame 8,
The engine E is mounted on the rear side, and the rotational power of the engine E is temporarily transmitted to the hydraulic pump mounted on the upper part of the transmission case 9 by the belt transmission 10, and from there,
The transmission is transmitted into the transmission case 9 by a belt transmission 11 capable of continuously variable transmission operation. The power shifted by the transmission in the transmission case 9 is transmitted to the front wheels 6, 6 and the rear wheels 7, 7, and the transmission shaft 9
a, the intermediate gear case 9b, and the planting portion 4 via the transmission shaft 9c.
It is transmitted to. In the drawing, reference numeral 12 denotes a steering wheel for steering the front wheels 6 and 6, reference numeral 13 denotes a seat on which a pilot sits, and reference numeral 14 denotes a seat.
Is a step floor for the operator to move on the traveling vehicle body, 15 is a spare seedling mounting table on which spare seedlings are placed, and 16 is a drawing marker for drawing the course of the traveling vehicle body 2 in the next step to the field scene.

The link device 3 includes a frame 8 of the traveling vehicle body 2.
The upper link 21 and the upper link 21
1 and the lower links 22, 22 are rotatably mounted,
A connection frame 23 is connected to the rear ends of these upper and lower links. The front end of a rolling shaft 24 rotatably supported on the planting portion 4 side is inserted and connected to the lower end of the connection frame 23. Thereby, the planting part 4 is mounted in a rolling manner in the traveling direction. Further, a hydraulic cylinder 26 for driving the link device 3 is provided with the base side attached to the frame 8 and the piston rod side thereof is integrally fixed downward from the bases of the upper links 21 and 21 integrally. Is connected via a spring to the tip of the. When the hydraulic cylinder 26 expands and contracts, the upper and lower links 21, 21, 22, 22 rotate around the support shaft on the link base 20 side, and the planting section 4 moves up and down.

The seedling transplanter uses seedlings grown in a seedling tray. The seedling tray T is made of a flexible plastic, and as shown in FIG. 4, a plurality of seedling growing pots Ta are arranged vertically and horizontally at a predetermined pitch p. At the left and right central portions of the seedling tray T, there are provided wide interval portions Tb in which the intervals between the seedling raising pots are wide. Also, square holes Tc for feeding seedlings are formed at the same pitch as the seedling raising pots at both left and right edges of the seedling tray T.

At the top of the planting section 4, three sets of upper and lower two-stage seedling platforms 30, 30,... Conveyance path 3
1, ... are connected. Each seedling tray transport path 31 transports the seedling trays supplied one by one from the seedling mounting tables 30, 30 downward in the first half, gradually changes the transport direction in the middle, and transports upward in the second half. It is formed in a character shape.
A seedling tray feeder 32 that conveys a seedling tray along the seedling tray conveying path 31 corresponding to the seedling tray conveying path 31.
The seedling removal device 33 for removing the seedlings from the seedling tray at the seedling removal position P, the seedling transportation device 34 for transporting the extracted seedlings along a locus that draws an arc downward and forward, and the seedling transportation device. A pair of left and right seedling feed belts 36 for laterally feeding one row of seedlings halfway to the left and right sides, and seedling planting devices 37, 37 for receiving the seedlings conveyed by the seedling feed belt and planting the seedlings in a field are provided. Have been. At the end of the seedling tray transport path 31, there is provided an empty box housing frame 38 which can house a plurality of empty seedling trays from which the seedlings have been taken out in a vertically stacked state.

The planting section frame 40, which supports the seedling tray transport paths 31,... And the respective devices and incorporates a transmission mechanism for these devices, is provided with a drive disposed inside the U shape of the seedling tray transport paths 31,. Are assembled integrally with the cases 41,. Then, four planting transmission frames 45,... Extend rearward from the rear surface of the planting section frame 40, and seedling planting devices 37,. Also, the seedling table support frames 46,.
Of the seedlings 30 and 3
0, ... are supported. The rolling shaft 24 is rotatably inserted into a bearing case 50 attached to a planting portion support bracket 48 fixed to the front left and right central portions of the planting portion frame 40. Thereby, the entire planting portion is supported in a freely rolling manner.

A center float 52 is provided below the planting section 4.
And a pair of left and right side floats 53, 53. During the planting operation, these floats slide while leveling the field scene. Each of the floats 52, 53, 53 is provided with a groove-forming device 54, which forms a groove for fertilization in a field scene near the seedling planting position of each line, and has a rear opening having a cross section in a plan view at the rear side. Are attached, and fertilizing hoses 5d for transferring the fertilizer fed from the fertilizer feeding device 5b are connected to each of the strips.

Next, the configuration of each section of the planting section 4 will be described. The seedling tray feed device 32 includes a pair of left and right feed claws 60 and locking claws 61 that operate at the seedling removal position P. The feed claw 60 reciprocates up and down along the seedling tray conveyance path 31 and moves downward when the square hole Tc of the seedling tray T is moved downward.
When it moves upward, it is disengaged from the square hole and moves to the next square hole. The locking claw 61 is interlocked with the operation of the feed claw 60, and is disengaged from the square hole when the feed claw 60 moves downward, and engages with the square hole when the feed claw 60 moves upward to support the seedling tray. I do. These feed claws 6
The seedling tray is intermittently fed by one pitch of the pot arrangement along the seedling tray transport path 31 by the operation of the zeros and the locking claws 61.

At the upper part of the seedling tray transport path 31, a separating comb 6 for separating the entanglement of the leaves between the seedlings adjacent in the lateral direction.
3 are provided. This separating comb 63 has rod-shaped teeth 63a, 63b,... Arranged in parallel between the paths of the seedlings in a row. As shown in FIGS. And the large teeth 63b are alternately arranged to reduce the resistance applied to the seedling when passing through the separating comb 63. This is for preventing the seedling tray feeding from being hindered or the seedling falling out of the pot of the seedling tray due to a large resistance applied to the seedling.

As shown in FIG. 11 or 12, the outermost teeth 63d are positioned slightly outward, and the distance p 'between the outermost teeth 63d and the inner teeth 63e is determined by the pitch p of the seedling pot.
By making the seedling tray wider, the resistance applied to the whole seedling tray when passing through the separation comb 63 can be reduced, and the seedling tray can be fed smoothly. For example, if the pitch p of the seedling raising pot is 20 mm, p ′ is 25
It is good to be about mm.

FIG. 13 shows an example in which the separation comb is vibrated in the seedling tray feed direction to promote the separation of leaves. The separation comb 64 is supported by a rotatable support shaft 64a,
The rotation of the support shaft 91a of the lock operation cam 91 described later is transmitted to the support shaft 64a of the separation comb. Thereby, the separating comb 64 vibrates up and down every time the seedling extracting device 33 is operated to push out the seedling, and effectively separates the leaves of the seedling.

FIG. 14 shows an example in which the separating comb is vibrated by a method different from that described above. The separation comb 65 is supported on a rotatable support shaft 65a. A cam 65b is attached to the planting drive shaft 100 described later of the seedling planting device 37, and the movement of the arm 65c abutting on the outer peripheral surface of the cam 65b is transmitted to the support shaft 65a of the separation comb. . The arm 65c is pressed against the cam 65b by the tension of the spring 65d. Since two projections are formed on the cam 65c, the separation comb 65 vibrates up and down twice each time the planting drive shaft 100 makes one rotation. Furthermore, the planting drive shaft 1
00 has a higher rotation speed than the other rotation shafts. Therefore, the separating comb 65 vibrates in a short cycle, and the leaf separating effect is high.

Immediately above the seedling removal position P, there is provided a weeding tool 67 for dividing the leaves of each seedling for each plant so that the seedlings can fit into the seedling holder 70 described later. This weeding tool 67 fixes a comb-like weeding stick 67a,... In plan view to a support frame 68 projecting rearward from the seedling tray transport path 31, and a substantially triangular side view at the front end of the weeding stick. At the left and right, thin plate-shaped weeding guides 67b are attached. Each of the weeding guides 67b,... Is located behind the seedling located at the seedling removal position P by a plurality of levels (for example, three levels). Further, rubber plates 67c,... Having a wider left and right width than the weeding guide are fixed to the front surface of the weeding guides 67b,. When the seedlings are fed to the seedling tray, the short leaves and buds of the seedlings are removed by the weeding guide 67b,
, And the long leaves are separated by weed sticks 67a,. This prevents seedlings from getting entangled with each other,
The seedling fits well into the seedling holding part 70a of the seedling holder 70. The seedling at the seedling removal position P is a seedling pushing pin 3 described later.
When the seedlings are extruded by 3a,... The rubber plates 67c,... Press the floor soil of the seedlings in the upper plurality of stages from behind, so that even if the leaves of the seedlings are entangled, the seedlings to be extruded and It will not be pulled out of the pot.

The seedling take-out device 33 is provided with seedling pushing pins 33a,
… Is a slide shaft 33 slidably supported in the front-rear direction.
b, 33b so as to operate integrally. When the feeding operation of the feeding claws 60, 60 is completed, the locking claws 61, 61
When the seedling tray is supported by the slide shaft 33b,
33b are slid rearward, and seedling push-out pins 33a,. Then, the feed claws 60, 60
The slide shafts 33b, 33
b returns to its original position, and the seedling pushing pins 33a,.

The seedling transfer device 34 is provided with a seedling holder 70 in which the same number of seedling holding portions 70a,... Each seedling holding portion 70a has a shape that is open front and back and is cut out at the upper side, and holds the seedling in a state where the floor soil portion is fitted therein. Seedling holding part 70a
From the main body side wall 70b forming the main body side wall 7b.
An extended side wall 70c having a wall thickness smaller than 0b extends. At the bottom of the seedling holding portion 70a, a lock claw 70d is provided as a falling-off restricting body.
Projecting into the seedling holding part 70a, so that the seedlings do not bite into the floor soil portion of the seedling and are not shifted. The operation mechanism of the lock claw 70d will be described later.

The seedling holder 70 is supported by a pair of swing links 71, 72 on the right and left sides as described below. That is, the attachment plate 75 is integrally attached to the extension of the connection link 73 that connects the rear ends of the swing links 71 and 72 that are parallel links, and the left and right center of the connection rod 76 that connects the left and right attachment plates 75. Support 77 fixed to the part
A seedling holder 70 is supported at the front end of the. As the swing links 71 and 72 swing, the seedling holder 70 reciprocates in an arc-shaped process K with a constant posture.

When the seedling holder 70 is stopped at the upper end of the stroke K, the leaf stem portion of the row of seedlings enters the seedling holding portion 70a from above by the seedling tray feeding operation. At this time, the root portion of the foliage passes between the main body side walls 70b, and the tip side portion thereof passes between the extended side walls 70c. Since the extension side wall 70c is thin, even if the rush is a seedling growing in a state where the tip side of the leaf is widened, the leaf easily enters the seedling holding portion 70a without being caught by the extension side wall 70c. By passing the leaf stem between the extended side walls 70c, the seedling can be straightened back and forth. Then, the seedlings are pushed out rearward from a row of seedling pots in the row of the seedling tray located at the seedling removal position P, and the floor portion of the seedlings fits into each seedling holding portion 70a of the seedling holder. The seedling holder 70 holding the seedlings moves to the lower end of the stroke K, where the seedlings are pushed out from the seedling holder 70 by the seedling pushing rod 78 and the pushed seedlings are knocked down onto the seedling feed belt 36 by the seedling hits 79.

The operating mechanism of the lock claw is configured as follows (see FIGS. 5 to 7). Lock claw 70d of each seedling holding part
Are attached to a common claw shaft 81, and this claw shaft 81
A claw shaft arm 82 is attached to the left and right central portions so as to rotate integrally with the lock claw 70d. On the other hand, at the rear end of the seedling holder support 77, a lock arm 85 rotatably supported on both ends by a lock operation roller 83 and a lock release roller 84, respectively, is rotatably provided. The lock arm 85 and the claw shaft arm 8
2 are connected by a connecting rod 87. The lock arm 85 is urged by a tension spring 88 so that when no external force is applied, the lock arm 85 rotates to a position regulated by the stopper 89 (a position shown in FIG. 6).

The lock operation cam 91 acting as a restricting drive acting on the lock operation roller 83 is provided on the support frame 6.
8 is rotatably supported. This lock operation cam 9
1 is urged by a torque spring 92 in a direction of rotating forward, and the operation of a rotating arm 93 that rotates in conjunction with the projecting operation of the seedling pushing pin 33a is transmitted via a rod 94, When the seedlings are pushed out of the seedling tray, they rotate backward against the tension of the torque spring 92.

When the seedling holder 70 moves to the upper end of the stroke K, the lock operation roller 91 is pushed by the lock operation cam 91, and the lock arm 85 turns leftward, and the state shown in FIG. At this time, the lock claw 70d is in the regulation released state in which it is retracted from the seedling holding portion 70a. Next, the seedling pushing pin 33a is operated to project, and the seedlings in the seedling tray are pushed into the seedling holding portion 70a of the seedling holder 70. Since most of the lock claw operating mechanism is provided behind the seedling holder 70, the periphery of the seedling holder 70 is extremely simple, and the seedling receiving port of the seedling holding portion 70a is wide. For this reason, the seedling is pushed into the seedling holding part 70a without difficulty.

As shown in FIG. 6, the lock push cam 91 pivots rearward, and the lock arm 85 pivots to the right by being pulled by the tension spring 88, as shown in FIG. Thereby, the lock claw 70d enters a regulated state in which it protrudes into the seedling holding portion. That is, at substantially the same timing as when the seedlings are stored in the seedling holder 70a of the seedling holder, the lock operation cams 91 bite into the floor soil of the seedlings and lock the seedlings. For this reason, the seedling holder 7
When 0 starts the downward movement, the lock claw 70d is already in the state of holding the seedling, and the seedling does not fall out of the seedling holder 70 when the downward movement starts.

An unlocking cam 95 acting as an unlocking portion acting on the unlocking roller 84 is provided fixed to a support bar 96 projecting rearward from the planting section frame 40. The unlocking cam 95 is disposed near the lower end of the travel K of the seedling holder at a position acting on the unlocking roller 84, and the movement locus K ′ of the lock arm 85
The upper surface is formed in an arcuate shape according to.

As shown by the two-dot chain line in FIG. 7, when the seedling holder 70 moves down just before the seedling is pushed out by the seedling pushing rod 78, the unlocking roller 84 comes into contact with the unlocking cam 95, Further, the lock releasing roller 84 is pushed up, and the lock arm 85 rotates left.
As a result, the locking claw 70d is retracted from the seedling holding portion 70a to release the restriction. As shown by the solid line in FIG.
Until the seedling holder 70 moves to the lower end of the stroke K and the seedling N is pushed out of the seedling holder 70, the regulation release state is maintained. Since the cam plate is not attached to the lower part of the seedling tray transport path 31 as in the conventional seedling transplanter, the seedling holder 70 can be moved deeply between the seedling tray transport path 31 and the seedling feed belt 36. And a sufficient horizontal distance for seedling extrusion is secured. When the unlocking roller 84 is disengaged from the unlocking cam 95 in the return stroke, the lock arm 85 rotates clockwise by the tension of the tension spring 88.

The seedling planting device 37 includes a planting transmission frame 45.
Rotating case 1 on planting drive shaft 100 provided at the rear end
The rotating case 101 is provided with a pair of seedling implants 102. The seedling implant 102 is rotatably supported by the rotating case 101, and rollers 104 supported by a plate 103 that rotates integrally with the seedling implant 102 integrally provide the planting transmission frame 45. Cam groove 10 of cam plate 105
5a. The cam groove 105a is attached to the planting drive shaft 10.
The shape is eccentric with respect to 0. For this reason, when the planting drive shaft 100 rotates, each seedling implantation tool 102 moves while drawing a closed-loop tip trajectory while appropriately changing the posture, and the seedlings dropped between the planting guides 106 are alternately removed. Each plant is taken and moved between the planting guides 106 and planted in the field.

The rotating case 101 is fixed to a plate 110 integrated with the planting drive shaft 100 by a phase adjusting bolt 111. The bolt holes of the plate 110 have flexibility with respect to the phase adjusting bolt 111, and the position of the phase adjusting bolt 111 is shifted to change the positional relationship between the planting drive shaft 100 and the rotating case 101, so that seedlings can be planted. The phase of the operation of the plug 102 can be adjusted.

On the outer surface of the rotating case 101, the support portion of the seedling implant 102, the mounting bolt 11 of the planting drive shaft 100,
3. There are irregularities due to the phase adjustment bolt 111 and the like. Therefore, a cover 114 that covers the mounting bolts 113 and the phase adjustment bolts 111 of the planting drive shaft and makes the outer surface of the rotating case 101 flat is provided. So that the seedlings can be planted normally. The cover 114
Is mounted on the rotating case 101 by the bolts 115 fitted in the recesses 114a, so that the flatness of the outer surface of the rotating case is not impaired.

[0037]

As described above, in the seedling transplanter according to the present invention, the operation mechanism of the falling-off regulating member is controlled by the driving force input from the opposite side of the seedling tray conveying path to the seedling-transporting member. Is driven in a regulated state, it is easy to operate the dropping regulator at an appropriate timing regardless of the position of the seedling carrier, and after the seedling carrier receives the seedling, the falling regulator is set to the regulated state. In addition, the structure of the periphery of the seedling carrier can be simplified, and the leaves of the seedling can be prevented from interfering with the lock claw operating mechanism.

[0038] Further, by disposing a release action portion acting on the operating mechanism for releasing the regulation state of the falling-off restricting body on the opposite side of the seedling feed belt from the seedling feeding belt, The structure of the periphery of the seedling can be simplified, the maintenance can be facilitated, and the seedling can be moved from the seedling carrier to an appropriate position at an appropriate speed.

[Brief description of the drawings]

FIG. 1 is a side view of a seedling transplanter.

FIG. 2 is a plan view of the seedling transplanter.

FIG. 3 is a side view showing a part of the planting portion.

FIG. 4 is a view as viewed from an arrow A of the separation comb.

FIG. 5 is a side view of a main part of the planting section.

FIG. 6 is a side view of a lock operating portion of the lock claw operating mechanism.

FIG. 7 is a side view of a lock release portion of the lock claw operating mechanism.

FIG. 8 is a (a) plan view and (b) a rear view of the seedling holder.

9A is a plan view and FIG. 9B is a rear view of the weeding guide.

10 (a) is a side view of the seedling planting apparatus, and FIG.
It is S sectional drawing.

FIG. 11 is a plan view of different separating combs.

FIG. 12 is a plan view of still another separation comb.

FIG. 13 is a side view of a main part of a planting section provided with different weeding tools.

FIG. 14 is a side view of a main part of a planting section provided with further different weeding tools.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 Running vehicle body 4 Planting part 31 Seedling tray conveyance path 34 Seedling transfer device 36 Seedling feeding belt 37 Seedling planting device 70 Seedling holder (seedling transfer body) 70a Seedling holding part 70b Main body side wall 70c Extension side wall 70d Lock nail (Loss regulating body) 85 Lock arm 91 Lock operation cam 95 Lock release cam (release action part)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Yu Okada, 1-Yachikura, Tobe-cho, Toyo-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. In-house Engineering Department (72) Inventor Shiro Asano 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.F-term (Reference)

Claims (2)

[Claims] A seedling is taken out from a seedling tray conveyed along a predetermined seedling tray conveying path, and a seedling carrier receiving the seedling moves to convey the seedling to a position above a seedling feed belt, where the seedling is conveyed. The seedlings are taken out of the body, supplied on a seedling feed belt, and seedlings transferred by the seedling feed belt are transplanted into a field in a seedling transplanter. It becomes a regulation state that regulates the falling off of the seedlings, and a falling regulation body that operates to release the regulation state before the seedlings are taken out is provided.
A seedling transplanter characterized in that the seedling transplanter is driven by a driving force transmitted via a regulating drive unit disposed on a side opposite to a seedling tray conveying path with respect to the seedling conveying body. 2. The seedling transplanter according to claim 1, wherein a release action portion for releasing the regulation state of the falling-off regulating body is arranged on a side opposite to the seedling tray transport path with respect to the seedling feed belt.