JPH09154329A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter capable of easily adjusting a seedling take out timing and an engaging claw timing and preventing seedlings from dropping out by constituting the engaging claw to operate in a state engaged with a seedling and a state without engaged therewith in accordance with the action of a seedling take out device. SOLUTION: This seedling transplanter is installed with a seedling take out device which takes out a seedling from each pot having one seedling in it and arranged crosswise in large numbers and a seedling transferring device which holds and transfers the seedling taken out of each pot. Engaging claws 32i are installed to the seedling transferring device to prevent seedlings from dropping out and the engaging claws 32i are so constituted to operate in an engaged state with the seedling and a nonengaged state therewith interlockingly with the action of the seedling take out device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to load seedlings, which are grown in a seedling box in which a large number of pots for storing one seedling are arranged vertically and horizontally, into a planting section together with the seedling box, and to seed the seedling from each pot of the seedling box. The present invention relates to a seedling transplanter for taking out and planting in a field.

[0002]

2. Description of the Related Art A typical seedling transplanting machine of this type is that a seedling extruded body in the shape of a rod is inserted into a pot through a hole or a cut formed in the bottom of each pot of a seedling box to make the seedling floor into a pot. A seedling take-out device that pushes out the seedlings to the upper opening side of the pot and a floor of the seedlings taken out by the seedling take-out device is held by a seedling holder having a concave cross section, and the seedling holder moves downward and the seedlings are moved. And a belt-type second seedling transporting device for laterally transporting the seedlings transported by the seedling transporting device and supplying the seedlings to the seedling picking position of the planting rod. Further, there is one in which the seedling holder is provided with a locking claw for locking the seedling while holding the seedling so that the seedling does not fall off during transportation.

[0003]

However, in the above-mentioned conventional one, since the locking claws are projected in association with the operation of the first seedling transporting device, the timing at which the seedlings are held in the seedling holders. It was difficult to match the timing of protrusion of the locking claws, and the seedlings taken out by the seedling take-out device sometimes fell off the seedling holder and fell off. An object of the present invention is to prevent such a fall accident.

[0004]

In order to solve the above problems, the present invention has the following arrangement. That is, the seedling transplanting machine according to the present invention, a seedling take-out device for taking out the seedlings from each pot of a seedling box in which a large number of pots for storing one seedling are arranged vertically and horizontally, and taken out from each pot by the seedling take-out device. In a seedling transplanter equipped with a seedling transfer device for holding and transferring seedlings, the seedling transfer device is provided with locking claws that lock the seedlings so that the seedlings that are being transferred do not fall out, and the operation of the seedling removal device It is characterized in that the locking claw is operated in a state of being locked and a state of not being locked to the seedling in conjunction with.

[0005]

1 to 8 illustrate one embodiment of the present invention. In this seedling transplanting machine 1, a planting section 4 for 6-row planting is mounted on a rear side of a riding type traveling vehicle body 2 through a link device 3 so as to be able to move up and down. A fertilizer hopper 5a of the fertilizer application device 5 and a fertilizer feeding device 5b for feeding fertilizer for each row are arranged. The seedling transplanter 1 is for planting rice seedlings in a paddy field, but the present invention is not limited to this and is also applicable to a seedling transplanter for planting vegetable seedlings in a field.

The structure of each part of the seedling transplanting machine 1 will be described below. The traveling vehicle body 2 includes a pair of left and right steering front wheels 6.6 that rotate and a pair of left and right rear wheels 7.7 that drive and rotate.
The transmission case 9 is mounted on the front side of the frame 8 and the engine E is mounted on the rear side. The rotational power of the engine E is transmitted once by a belt transmission 10 to a hydraulic pump mounted on the upper part of the transmission case 9 and from there. The transmission is transmitted into the transmission case 9 by a belt transmission 11 capable of continuously variable transmission operation. And mission case 9
The power inside is transmitted to the front wheels 6.6 and the rear wheels 7.7, as well as the transmission shaft 9a, the planted clutch case 9b, and the transmission shaft 9c.
Is transmitted to the planting section 4 via. In the figure, 12 is a steering wheel for steering the front wheels 6, 6, 13 is a seat on which the operator sits, and 14 is a step floor when the operator moves on the traveling vehicle body 2.

The link device 3 includes a frame 8 of the traveling vehicle body 2.
The upper link 15a
15a and lower links 15b and 15b are rotatably attached, and vertical links 15c are attached to the rear ends of these upper and lower links.
Are connected. Then, the planting portion 4 is attached to the connecting bearing portion 15c ′ protruding rearward from the lower end portion of the vertical link 15c.
An integral connecting shaft 16 'is rotatably connected to the planted transmission case 16 at the center, and the planting part 4 is mounted rotatably left and right with respect to the traveling direction. Further, a hydraulic cylinder 17 for driving the link device 3 is provided with its base portion side attached to the frame 8, and its piston rod side is integrally fixed downward from the base portion of the upper links 15a, 15a to the arm 15a. 'Is connected via a spring to the tip. When the hydraulic cylinder 17 expands and contracts, the upper and lower links 15a, 15, 15b, 15b rotate around the support shaft on the link base 8a side, and the planting section 4 moves up and down. The hydraulic cylinder 17 is the hydraulic valve 1.
8 controls the operation.

On the left and right sides of the front part of the traveling vehicle body 2, there are provided preliminary seedling mounts 20, 20 on which seedlings for supply are placed.
Further, on the left and right sides of the front part of the traveling vehicle body 2, line-drawing markers 21 and 21 for delineating the course of the traveling vehicle body 2 in the next stroke to the field scene are provided so that they can be switched up and down.

By the way, the seedling box C used in this seedling transplanting machine 1 is a flexible seedling box made of plastic,
The shape is as shown in FIGS. 11 and 12. That is, the small pots C ′ are arranged at predetermined intervals in the left, right, front and rear directions, the openings C′a are connected to each other, and the bottoms C′b. Further, square holes Cb for feeding seedling boxes are provided at left and right edge portions Ca and Ca along the longitudinal direction of the seedling box C in accordance with the longitudinal distance of the pots C ′. At the bottom C'b of each pot C '..., a cut C' through which a seedling push-out pin 31a described later can enter from the bottom side.
c is provided. Cc is a wide interval portion provided at the center in the left and right (transverse directions) toward the longitudinal direction. Each pot C 'is filled with floor soil, sowed, covered, and raised. Seedling box C grown in this way for each pot C '.
The seedlings are loaded into the planting section 4 together with the seedling box, and the seedlings are taken out by being pushed out from the bottom side by the seedling pushing pin 31a described later.

The planting section 4 has a six-row planting structure, and one for every two rows.
Seedling box transfer devices 30, 30, 30 provided in groups,
Seedling extractor 31.31.31, first seedling transfer device 32.3
2, 32, seedling extracting devices 33, 33, 33, second seedling conveying devices 34, 34, 34, and seedling planting devices 35 provided for each row are provided.

A plurality of seedling boxes C are provided in each seedling box carrying device 30.
Are loaded and the seedlings n ... Are simultaneously pushed out by the seedling take-out device 31 ... From the pots C ′ ... The extruded seedlings n ... Are held by the seedling holders 32a of the first seedling transporting device 32 ... And are transported downward in a plane parallel to the traveling direction of the machine body and perpendicular to the ground, and the second seedling transporting device 34 ... Dropped on top. The removed seedlings n ... are laterally divided into left and right half by the second seedling transfer device 34 ... to the seedling collecting portions on the left and right sides, and the seedlings n ... transported to the seedling collecting portion are seedlings one by one. The planting devices 35, 35 ... Are taken and planted in the field.

A center float 36 is provided below the planting section 4.
And a pair of left and right side floats 37 are provided, and during planting work, these floats slide while leveling the field scene. Each of these floats 36, 37, 37
Is attached with a grooving body 38 ... Forming a fertilizing groove in a field scene near the seedling planting position of each row, and a U-shaped fertilizing guide 5c having a rear opening in a plan view cross section is attached to the rear side thereof. Is attached, and fertilization hoses 5d ... For transferring the fertilizer fed from the fertilizer feeding device 5b.

The center float 36 is also a sensor for detecting irregularities in the field, and the center float 3
The spool of the hydraulic valve 18 is operated according to the vertical movement of the valve 6. That is, the center float 36
Moves upward, the hydraulic valve 18 is actuated in a direction to extend the hydraulic cylinder 17, and conversely, when the center float 36 moves downward, the hydraulic valve 18 is contracted in a direction to contract the hydraulic cylinder 17.
Is activated. Thus, the planting unit 4 is controlled so as to maintain a constant height with respect to the field scene.

The seedling box transporting device 30 has a two-stage upper and lower seedling box feeding section 30a which is provided in a state in which the seedling box conveying device 30 is inclined downward and backward.
30a and a main seedling box transporting section 30b which joins the seedling box transporting paths from the two-stage seedling box feeding section and extends downward, and which is further curved forward in a U-shape upward, and subsequently the seedlings Empty box transport section 3 extending upward to directly below the box supply sections 30a and 30a
0c, and an empty box housing frame 30d for housing a plurality of empty seedling boxes C ... discharged from the empty box carrying section 30c in a vertically stacked state. In these seedling box carrying devices 30, the main seedling box carrying section 30b is supported above each planted transmission case 16 and the main seedling box carrying section 3 is further provided.
The seedling box supply section support frame 30e, whose base is fixed in the U-shape of 0b, supports the seedling box supply sections 30a, 30a, the empty box transport section 30c, and the empty box storage frame 30d. .

Two seedling boxes are placed in series in the upper and lower two-stage seedling box supply sections 30a, 30a with their longitudinal directions facing forward and backward. Sliding rollers 50, 50 ... Are provided at the bottom of the seedling box supply section 30a, 30a, and the seedling box C placed on the seedling box supply section is supported by the sliding roller on the lower surface of the pot C '. It is designed to slide backwards. In addition, seedling box supply shutters 52, 52 for switching between a state in which the seedling box is passed through the main seedling box transport unit 30b and a state in which the seedling box is not passed through are provided at the rear of the seedling box supply units 30a, 30a, respectively. When the shutter is in the passing state, the lower shutter is in a non-passing state, and when the upper shutter is not passing, the lower shutter is in a passing state.

Each of the seedling box carrying devices 30 is provided with a seedling box feeding device 40 for locking the seedling boxes C at the seedling pushing position P and sending the seedling boxes one row at a time along the pot at an appropriate timing. This seedling box feeding device 40 is provided with a main seedling box carrying section 30b.
The left and right feed claws 40 that are provided in the transport guide portion 30b ′ near the seedling extrusion position P and that reciprocate along the seedling box transport path.
a · 40a and locking pawls 40b ·
40b. The claw portions of the feeding claws 40a, 40a enter the opening provided in the conveyance guide portion 30b ', and the seedling box feeding corners are provided at the edge portions Ca, Ca of the seedling box C located in the groove. From the state in which it is engaged with the holes Cb, Cb, the feed claw moves upward, rides over the next angular hole Cb, Cb, engages with it, and moves downward again, thereby transporting the pots C '... in horizontal rows. It is configured.

The operation of the seedling box feeding device 40 is performed by driving the seedling box feeding drive shaft 40c projecting to the left side of each planted transmission case 16.
The seedling take-out device 31 pushes out the seedlings, and the push-out pins 31a are fed from the bottom of the pot C '... until the next seedling push-out operation starts. Further, the feeding operation of the feed claws 40a, 40a is performed by the drive plate 40d and the feed claws 40a, which are attached to the seedling box feed drive shaft 40c of the planted transmission case 16 so as to rotate integrally therewith.
A crank arm 40e interlocking with 40a, a rod 40f
Connect with. Crank arms 40e and 40e 'provided on the left and right of each seedling box transfer device 30 rotate integrally with one rotating shaft 40g supported by penetrating the U-shaped inside of each main seedling box transfer unit 30b. Is installed to The upward movement of the feed claws 40a and 40a, that is, the operation in the direction opposite to the seedling box feed direction is driven by the seedling box feed cam in the planting operation case 16, and the downward movement of the feed claws 40a and 40a, that is, the seedling box feed direction. The operation of is provided so as to be driven by the spring 40h. In addition, each drive plate 4
The seedling box feeding manual levers 41 are integrally attached to 0d, and the seedling box feeding device 40 is fed not only by the drive rotation of the feed driving shaft 40c but also by the swinging operation of the seedling box feeding manual lever 41. Operated.

The seedling take-out device 31 is the seedling box carrying device 30.
From the seedling box C which is loaded into the seedling and sequentially sent to the seedling extrusion position P,
At the seedling pushing position P, the floors of the seedlings n in each horizontal row of the pots C '... are pushed out by the seedling pushing pins 31a.
It is a device that takes it out to the side. This seedling take-out device 31 includes an extrusion drive shaft 31b protruding to the left side of the planted transmission case 16.
However, through the telescopic rod 31d, the extrusion operation case 31e
The fan-shaped pinion gear 31h, which is connected to the operation arm 31g mounted so as to rotate integrally with the extrusion operation shaft 31f, is provided so as to rotate integrally with the extrusion operation shaft 31f and the extrusion operation case 31e. Pin 31a ...
Is engaged with the rack of the extrusion operation shaft 31i that is integrally connected with. Therefore, the rotation of the extrusion drive shaft 31b causes the extrusion operation shaft 31i to slide. 31
Reference numeral d'denotes a spring case in which the spring 31 '' is housed.

The seedling extruding pins 31a ... Are provided in the same number and pitch with respect to the lateral pots C '... of the seedling box C,
The extrusion pin guide 31j penetrates through the extrusion hole 31k ... to perform the projecting operation, and further penetrates through the cut C'c ... of the bottom C'b ... of the pot C '... for one horizontal row of the seedling box C and the floor of the seedling n ... Push out. The projecting / retracting operation of the seedling pushing pins 31a ... is in the seedling box locking state after the feeding operation of the seedling box feeding device 40 is completed and the seedling holder 32a of the first seedling conveying device 32 is stopped at the seedling pushing position P. When it is located in the state, it will protrude,
At the same time, pulling in is completed before the next movement of the seedling box by the seedling box feeder is started.

The first seedling conveying device 32 is the seedling removing device 3 described above.
1 horizontal row of seedlings n pushed out by 1 ... seedling holder 3
2a receives the seedlings, and the seedling holder 32a conveys the seedlings downward in a plane parallel to the traveling direction of the machine body and perpendicular to the ground, extracts the seedlings held therein, and seedling feeding belt 34a of the second seedling conveying device 34. A device arranged on top of 34a.
In this first seedling transfer device 32, a drive arm 32c that rotates integrally with a first seedling transfer drive shaft 32b protruding to the right side of the planted transmission case 16 is provided on both left and right sides of the seedling box transfer device 30. Each pair of swing arms 32d (UL)
.Lower swing arm 32 of 32d (UL)
d (L) / 32d (L) are interlockedly connected to each swing arm 32d (U / L) / 32 via expansion rod 32e.
The tip of d (U / L) is pivotally supported by support plates 32f and 32f fixed to the left and right ends of the seedling holder 32a.

When the drive arm 32c is driven and rotated, a pair of upper and lower swing arms 32d forming a parallel link.
(U · L) · 32d (U · L) swings up and down, and the seedling holder 32a supported at its tip via the support plates 32f and 32f reciprocates up and down in an arcuate path. When the seedling holder 32a moves to the seedling receiving position located at the upper end of the stroke, the lower swing arm 32d
(L) and 32d (L) hit the stopper bodies 32g and 32g, and further upward movement is restricted. Drive arm 32
c still rotates to try to move the swing arms 32d ... upward, but the telescopic rod 32e contracts (the spring 3 in the spring case 32e 'of the telescopic rod 32e).
Swing arm 32d (L) ・ 32d
(L) remains stopped by the stopper bodies 32g and 32g. Therefore, swing arm 32d (L)
While 32d (L) is in a stopped state by hitting the stopper bodies 32g and 32g, the seedling holder 32a is located at the seedling receiving position, during which the seedling n is pushed by the seedling extracting device 31 to receive the seedlings n.

The first seedling conveying device 32 includes seedling pushing pins 31a.
The seedling holder 32a is stopped at the seedling receiving position before the projecting operation (seedling pushing operation) is started, and when the seedling pushing pin 31a ... Then, the seedlings n ...
When the seedlings are just transferred to the seedling picking position of 5.35, the seedlings n carried by the first seedling carrying device 32 are operated by the seedling extracting device 33 to be delivered to the second seedling carrying device 34. Then, the seedling holder 32a moves up again and returns to the seedling receiving position.

In the seedling holder 32a, seedling holding portions 32h ... Receiving the lateral rows of seedlings n .. It is formed according to the horizontal position of '.... The seedling holding portion 32h has a concave shape that is open at the front and rear and has a notch on the upper side, and has a locking claw 32i that locks the floor na of the seedling n that is held at the bottom thereof. Is provided. The locking claws 32i are integrally attached to a common claw shaft 32j, and are urged toward the side projecting into the seedling holding portion by a spring 32l having one end attached to a spring mounting arm 32k that operates integrally with the claw shaft 32j. ing. Further, a roller mounting arm 32m is provided on the claw shaft 32j so as to operate integrally, and a roller 32n is rotatably supported by the arm 32m.
On the other hand, on the seedling box transfer device 30 side, a roller operation arm 32o is rotatably provided above the position of the roller 32n when the seedling holder 32a is at the upper end of the stroke, and the roller operation arm 32o is the first. Interlocking arm 32p, second interlocking arm 32q, first interlocking rod 32r, third interlocking arm 3
2s, fourth interlocking arm 32t, and second interlocking rod 32
It is adapted to interlock with the projecting operation of the seedling extruding pins 31a ... Through an interlocking mechanism constituted by u.

That is, the interlocking mechanism and the roller operating arm 32s are always operated by the pulling action of the spring 32v.
Is in the position shown by the solid line in FIG. 5, and when the seedling holder 32a is located at the upper end of the stroke, the roller operating arm 32o moves to the roller 32.
Since the position of n is regulated, the locking claws 32i ... Do not project to the seedling holding portion 32h. Then, when the seedling push-out pins 31a ... Protrude from the pot C ′ of the seedling box to the position just before the seedling is completely pushed out (a position of about 5 mm from the rear end of the stroke), as shown by a chain line in FIG.
Is pulled backward and the regulation of the roller 32n is released, so that the locking claws 32i ... Project into the seedling holding portion 32h and are pushed into the seedling holding portion.
Lock to ... Since the projecting operation of the locking claws 32i is interlocked with the operation of the seedling pushing pin 31a.
It is possible to easily match the timing of pushing out the seedlings with 1a and the timing with which the locking claws 32i are projected, and it is possible to accurately hold the seedlings pushed into the seedling holding portions 32h. This allows the seedling holder 32a to be transferred during seedling transportation.
The seedlings are prevented from falling off from the seedlings, and the seedlings can be reliably delivered to the second seedling carrier device 34.

A cam plate 32w is fixed to the seedling box carrying device 30, and when the seedling holder 32a moves to the position just before the seedling extracting position located at the lower end of the stroke, the roller 32n is moved by the cam plate 32w. When pushed down, the locking claws 32i ... Are disengaged from the seedling holding section 32h.
The seedlings are now unlocked.

The seedling extracting device 33 extracts the seedlings n ... Held in the respective seedling holding portions 32h of the seedling holder 32a when the first seedling transporting device 32 moves to the seedling extracting position, and Two seedling feeding devices 34 seedling feeding belts 34a, 34
It is a device to drop on a. The seedling extracting device 33 includes each seedling holding portion 3 of the seedling holder 32a that has moved to the seedling extracting position.
Seedling holder 3 that receives the seedling n held in 2h ...
Extraction bar 33a for extracting seedling n ... by passing only 2a
, And a seedling tap 33b ... which knocks down the seedling n ... Extracted from the seedling holder 32a.

The second seedling conveying device 34 receives the horizontal rows of the seedlings n ... Which have been pulled out from the seedling holder 32a by the seedling extracting device 33 on the seedling feeding belts 34a and 34a, and the left and right half seedlings are planted. It is a device that conveys the seedlings to the seedling picking position S of the attachment device 35. The second seedling transport device 34 includes drive rollers 34c and 34c attached to drive shafts 34b and 34b that project to the rear side of the left and right transmission frame 42 and rotate in opposite directions.
And the driven rollers 34d and 34d that are rotatably supported on the left and right sides of the drive roller.
The seedling feed belts 34a, 34a are wound around the and, and the upper surfaces of the left and right seedling feed belts 34a, 34a are operated so as to move to the left and right sides respectively. Also,
A plurality of protrusions 34a ′ ... arranged along the rotation axis direction are provided on the outer peripheral surface of the seedling feeding belt 34a, and the seedling n ... Is sandwiched between the left and right sides of the protrusions 34a ′.
Is pulled out from the seedling holder 32a and conveyed.
The turning operation of the seedling feeding belts 34a, 34a conveys the seedlings n ... to the seedling taking position at the timing when the seedling planting devices 35, 35 take the seedlings one by one from the seedling taking positions S, S.

On the bottom surface of the seedling feeding belt 34a, a mud-stripping brush 34e for dropping mud attached to the seedling feeding belt 34a.
Is provided. The mud-stripping brush 34e is driven by the drive shaft 34b to rotate in the direction perpendicular to the moving direction of the seedling feeding belt 34a.
Mud does not remain between a'and the protrusion 34a ', and mud can be completely dropped.

The seedling planting device 35 is a device for picking up each of the seedlings n ... Carried to the seedling picking position S by the second seedling carrier 34 and planting them in the field. This seedling planting device 35
Is mounted on the rear left and right side portions of the planted transmission frame 43, 43 extending rearward from the left and right transmission frame 42, and is equipped with a cam body which is non-rotatably fixed inside, and the case side rotates integrally with the planted drive shaft 35a. The case 35b is provided with two seedling implantation rods 35c, 35c. The tips of the two seedling-implanting rods 35c, 35c move in a closed loop locus T and alternately plant seedlings in the field.

At the time of initial seedling replenishment, the seedling box conveying device 30 is replenished with the seedling boxes C, and the planting section 4 is idled until the seedlings are lined up on the seedling feeding belts 34a. Conventionally, an operator monitors this idle operation, and when the seedlings are lined up on the seedling feeding belts 34a, the operator has turned off the planting clutch 55 that turns on and off the transmission to the planting section 4. However, if the timing of disengaging the planting clutch 55 is incorrect, planting may not be performed immediately after starting the work, or planting may start during idling. Therefore, the seedling transplanter 1 is provided with an initial seedling automatic setting device that automatically stops the idle operation at appropriate timing.

This initial seedling automatic setting device includes an automatic set switch 56 for switching to an initial seedling automatic setting mode,
A box feed counter 57 that counts the number of feeding operations of the feed claws 40a and 40a, and a control device 58 that turns on and off the planting clutch 55 based on the count number of the box feed counter.
When the seedling box conveying device 30 is replenished with the seedling boxes C ... and the automatic set switch 56 is set to the initial seedling automatic setting mode, the count number of the box feeding counter 57 is a predetermined value (the seedling feeding belt 34a ... Feed claw 40a until lined up
40a feed operation number), the planted clutch 5
It is designed to automatically cut 5. This prevents the inconvenience and reduces the operator's burden.

9 and 10 show the first seedling transport device 32.
The 1st seedling conveying device different from is shown. This first seedling carrier 6
0 is similar to the above-mentioned Example 32, the claw shaft 6 having the common locking claws 60i on the bottom of the seedling holding part 60h of the seedling holder 60a.
It is attached integrally to 0j. The tip portion of the first arm 60k that operates integrally with the claw shaft 60j and the seedling holder 60a
The one end of the second arm 60m attached to the attachment metal 60l provided at the rear of the is connected via the first rod 60n, and the first arm 60k is stretched between the attachment metal 60l. It is biased rearward by the tension spring 60o. A roller 60p is rotatably supported on the other end of the second arm 60m. Further, a third arm 60q is rotatably attached to a spindle provided on the left support plate 60f.
0q is connected to the fourth arm 60s attached to the rotating shaft 60r via the second rod 60t. Rotating shaft 60r
The pressing plate 60u is integrally provided with the pressure plate 60u, and a bolt 60u 'attached to the tip of the pressing plate 60u is in contact with an arm lever 60v rotatably attached to the attachment metal 60l by a spindle. Since the fourth arm 60s is urged in the predetermined direction by the torque spring 60w, the bolt 60u 'is always in a state of pressing the lever 60v. A cam 60x is attached to the spindle of the second arm 60m.
Is attached, and the tip of a claw 60y that operates integrally with the lever 60v is engaged with the engaging portion of the cam 60x. On the other hand, the seedling ejecting device 31 side is provided with an extruding plate 60z that operates integrally with the seedling extruding pins 31a ... At the time when the seedling extruding pins 31a ... Protrude from the pot C ′ ... When the extrusion plate 60z contacts the protrusion 60q 'of the third arm 60q and the seedling extrusion pins 31a ...
The third arm 60q is rotated rearward by pushing q '.

Therefore, the seedling n is pushed by the seedling extrusion pin 31a.
When the ... is pushed almost completely into the seedling holding portion 60h, the third arm 60q pivots rearward, whereby the tip of the lever 60v disengages from the engaging portion of the cam 60x. One arm 60k rotates rearward, and the locking claws 60i ...
Seedling n that protrudes inside and is pushed into the seedling holding part ...
Of the floor na. Since the projecting operation of the locking claws 60i is interlocked with the operation of the seedling extruding pins 31a, it is possible to easily match the timing of seedling extrusion by the seedling extruding pins 31a and the timing of projecting the locking claws 60i. Therefore, the seedlings pressed into the seedling holding portion 60h can be accurately held. This prevents the seedlings from falling off the seedling holder 60a during the seedling transportation, and the seedlings can be reliably delivered to the second seedling transportation device 34.

A cam plate 61 is fixed to the planted transmission power transmission frame 43, and when the seedling holder 60a moves to a position just before the seedling withdrawal position located at the lower end of the stroke, the roller 60p causes the cam plate 61 to move. When the second arm 60m is pushed up by the rotation of the second arm 60m to the original position, the locking claws 60i are disengaged from the seedling holding portions 60h and the locking of the seedlings is released.

[0035]

As described above, in the seedling transplanting machine according to the present invention, the state in which the locking claws provided on the seedling transporting device are locked to the seedling and the seedling is interlocked with the operation of the seedling removing device. Since it operates in a state where it does not stop, it is possible to easily match the timing of seedling extraction by the seedling extraction device and the timing at which the locking claws act to lock the seedlings, and the seedling transfer device ensures that the seedlings being transferred are accurate. The seedlings were retained and the seedlings fell out.

[Brief description of the drawings]

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

FIG. 2 is a rear view of the planting part.

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

FIG. 4 is a right side view showing a part of the planting part.

FIG. 5 is a side view showing an engagement / disengagement mechanism of a locking claw.

6 (a) and 6 (b) are cross-sectional views of the seedling holder showing different states.

FIG. 7A is a side view and FIG. 7B is a bottom view of the seedling feeding belt.

FIG. 8 is a block diagram of an initial seedling automatic setting device.

FIG. 9 is a side view showing a different example of the engaging / disengaging mechanism of the locking claw.

10 (a) and 10 (b) are cross-sectional views of the seedling holder showing different states in the engaging / disengaging mechanism of the locking claw shown in FIG.

FIG. 11 is a plan view of a seedling box.

FIG. 12 is (a) a side view and (b) a front view of a seedling box.

[Explanation of symbols]

 1 seedling transplanter 2 running car body 3 link device 4 planting part 30 seedling box carrier 31 seedling extractor 31a seedling pushing pin 32 first seedling carrier 32a seedling holder 32i locking claw 34 second seedling carrier 35 35 seedling planting apparatus

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[Procedure amendment]

[Submission date] January 26, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 6

[Correction method] Change

[Correction contents]

FIG. 6

[Procedure amendment 2]

[Document name to be amended] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Change

[Correction contents]

FIG. 10

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Iseki, Hideo Iseki, No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. In-house (72) Inventor Shinichiro Yano 1 Yakura, Tobe-cho, Iyo-gun, Ehime Izeki Agricultural Machinery Co., Ltd. (72) Inventor Hiroyuki Niiyama 1 Yakura, Tobe-cho, Iyo-gun, Ehime Izeki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A seedling take-out device for taking out seedlings from each pot of a seedling box in which a large number of pots for storing one seedling are arranged in a matrix, and a seedling taken out from each pot by the seedling take-out device is held and conveyed. In a seedling transplanter equipped with a seedling transporting device, the seedling transporting device is provided with locking claws that lock the seedlings so that the seedlings being transported do not fall off, and the operator operates in conjunction with the operation of the seedling removing device. A seedling transplanter characterized in that the pawl is configured to operate in a state of being locked and a state of not being locked in the seedling.