JP2916760B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for planting seedlings taken out of a vertically fed seedling tray.

[0002]

2. Description of the Related Art As described in Japanese Utility Model Laid-Open Publication No. 2-67713, a transplanting machine has a plurality of seedling accommodating portions and is capable of laterally feeding seedlings for taking out seedlings from a seedling tray supported by a support member. A take-out unit, a transplanting unit for planting the seedlings taken out by the seedling take-out unit, and a seedling that is arranged between the seedling take-out unit and the transplantation unit, and guides the seedlings taken out by the seedling take-out unit to the transplanting unit. A guide portion, a vertical transport portion for intermittently vertically feeding the seedling tray to the seedling extracting portion side, and a lateral feeding means for intermittently feeding the seedling extracting portion in a direction orthogonal to the vertical feeding direction of the seedling tray. When the seedling take-out unit moves forward and backward to the end of the horizontal movement by the operation of the horizontal feeding means, the vertical feeding unit is driven to feed the seedling tray vertically by one pitch. .

[0003]

However, as described above, the seedling tray is intermittently vertically fed, and the seedling take-out portion is intermittently horizontally fed in a direction orthogonal to the vertical feeding direction of the seedling tray. Each time the seedling removal unit is operated and the seedlings are harvested, the seedling removal unit is displaced to the laterally feeding side with respect to the transplantation unit, and the amount of displacement is increased. Therefore, there has been a problem that the posture of the seedlings becomes unstable while the seedlings taken out by the seedling removal unit are supplied to the planting unit via the seedling guiding unit, and the planting posture by the transplanting unit becomes unstable.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to stabilize a planting posture of a seedling by laterally moving a seedling conveying part instead of laterally moving a seedling extracting part. Another object of the present invention is to make it possible to feed the seedling transport section in a horizontal direction in synchronization with the operation of the seedling removal section.

[0005]

According to a first aspect of the present invention, there is provided a transplanter having a plurality of concave seedling receiving portions, and removing seedlings from an opening side of the seedling receiving portion of a seedling tray supported by a support member. A seedling extraction unit to be picked out by a nail, a transplanting unit for planting the seedlings extracted by the seedling extraction unit, a vertical transport unit for vertically feeding the seedling tray to the seedling extraction unit side, and a vertical feeding direction of the seedling tray. It is characterized by comprising transverse feeding means for transversely feeding the vertical conveying section in a direction orthogonal to the medium, and power transmission connecting means for directly drivingly connecting the horizontal feeding means and the seedling removing section.

According to the first aspect of the present invention, since the transverse feeding means and the seedling take-out section are directly driven and connected, the transmission error between the operation timing of the seedling take-out section and the horizontal feed timing of the vertical transport section is minimized. It is possible to take accurate seedlings,
The vertical transport unit is fed sideways, and the seedling pick-up unit only performs the seedling collecting operation without being fed sideways, so the seedlings picked up by the seedling picking unit can be supplied to the transplanting unit as they are, and the planting posture of the seedlings can be adjusted. Can be stabilized.

A transplanter according to a second aspect of the present invention has a plurality of concave seedling receiving portions, and a seedling extracting portion for extracting seedlings from a side of the seedling receiving portion of a seedling tray supported by a support member, from an opening side of the seedling extracting portion. And a transplanting part for planting the seedlings taken out by the seedling take-out part, and a lateral feed in a direction orthogonal to the vertical feed direction of the seedling tray is possible, and the seedling tray is fed vertically to the seedling take-out part side. And a transverse feeding means for directly transmitting a seedling removal power via a drive system of the seedling removal part and horizontally feeding the vertical transportation part. Second
According to the invention, since the lateral feeding means is operated by direct transmission of the seedling removal power via the drive system of the seedling removal section, the operation timing of the seedling removal section and the lateral feeding of the vertical transport section Since the transmission error between the timing and the timing can be minimized, accurate seedling collection can be performed.Moreover, since the seedling removal unit is configured to remove seedlings from the open side of the seedling storage unit of the seedling tray by the seedling removal claw, The seedlings directly taken out by the seedling take-out claw of the seedling take-out part can be directly supplied to the transplanting part without damaging the seedlings and the planting posture of the seedling can be stabilized.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. FIG. 1 is a schematic view of a main part of a transplanter according to the present invention, and FIG. 2 is a partially cutaway side view of the entire transplanter. In FIG. 2, 1 is a traveling body, and a front frame 1A and a transmission case are shown. 1B and the rear frame 1C are integrally assembled, respectively.
The engine 2 is mounted on the upper side of the transmission frame A, the transplantation device 3 described later is supported on the rear frame 1C side, and a pair of transmissions extending downward and rearward on both sides in the vehicle width direction of the transmission case 1B. Cases 4 and 4 are provided so as to be able to swing up and down, and drive wheels 5 and 5 are supported on their free ends, respectively. These drive wheels 5 and 5 are transmitted from engine 2 via transmission case 1B and transmission cases 4 and 4. The traveling machine 1 is driven by the rotational power transmitted to the traveling machine 1 so as to travel by itself.

In addition, between the lower part of the traveling machine body 1 and the front side of the drive wheel 5, an inter-strain detection switch for detecting the inter-spotted plant of the pot seedling by the transplanting device 3 while rolling on the upper surface of the ridge A. It supports a detection roller 6 (not shown), and intermittently controls each drive unit of the transplanting device 3 based on an inter-strain detection signal output from the detection roller 6.

Further, a pressure-reducing wheel 7 running along the upper surface of the ridge is supported at a lower portion in front of the front frame 1A via a supporting rod 1D, and the ridge A is provided on both sides of the pressure-reducing wheel 7. A pair of guide wheels 8, 8 running along the side surface are provided.

Further, the rear frame 1C of the traveling body 1
The transplanting device 3 supported on the side includes a vertical transport section 30 for sequentially transporting a seedling tray 10 in which a plurality of concave pot seedling receiving sections 10a are arranged vertically and horizontally to a seedling removal side, and a transport of the vertical transport section 30. At the end, there is a seedling extraction part 40 having a seedling extraction nail 41 for extracting a pot seedling from the open side of the seedling storage part 10 a of the seedling tray 10, and a transplanting nail 53 that receives the seedling from the seedling extraction part 40 and performs a planting operation. And a transplant unit 50.
3 is supported on the mission case 1B side, and the seedling take-out unit 40 and the vertical transport unit 30 are connected to the rear frame 1
It is supported on the C side. In FIG. 2, reference numeral 9 denotes a steering handle mounted on the rear frame 1C so as to face rearward and upward.

As shown in FIG. 3, the vertical transport section 30 has a pair of side walls 31a opposed to each other at a predetermined interval.
And a connecting rod 31 connecting these side walls 31a, 31a.
b is provided with a tray receiving portion 32 for supporting and guiding the seedling tray 10 and a pair of opposed sprockets are provided between the front portions of the side walls 31a, 31a of the supporting member 31. A driving shaft 34 having driving wheels 33, 33 using the same is rotatably supported, and a driven wheel 35, using a pair of opposing sprockets between rear portions.
A driven shaft 36 having a driven shaft 35 is freely rotatably driven, and endless belts 37, 37 each using a chain are hung on the respective drive wheels 33, 33 and the driven wheels 35, 35, respectively.
The endless belts 37, 37 are provided with a large number of forced conveyance members 38 at predetermined pitch intervals for forcibly transporting the seedling tray 10 by hooking them on the pot seedling storage portion 10a. 10 is forcibly fed vertically.

The forcible conveying member 38 shown in FIG. 4 includes inner and outer link plates 37a, 37b of the endless bands 37, 37.
Using a connecting shaft having connecting portions 38a, 38a at both ends for connecting the fork and rollers 37c, and forcing the forcible conveying member 38 into a pot seedling receiving portion 10 arranged in the longitudinal direction of the seedling tray 10.
The shaft diameter is such that it can be inserted into the concave groove 10b between the a and 10a so that it can be hooked on the side wall of the pot seedling accommodating portion 10a.
By using the connecting pins a and 38a, the connecting pins of the endless bands 37 and 37 can also be used, thereby simplifying the structure and facilitating the mounting.

In addition to the connecting shaft serving also as the connecting pin as described above, the link plate 37a in the both endless belts 37 is used as the forcible conveying member 38.
Alternatively, of course, a shaft rod or the like may be integrally provided between the opposing surfaces of the 37b by a suitable fixing means.

As a driving means of the driving shaft 34 having the driving wheels 33, 33, mainly a motor M is used. Limit switch L1 for detecting
L2 and the limit switch L1 or L2
The motor M is intermittently driven in response to a detection signal from the controller to feed the seedling tray 10 vertically one pitch at a time.

As shown in FIG. 1, a transverse feed shaft 44 having a traverse groove 44a is provided in the seedling extracting section 40, and the transverse feed shaft 44 is connected to a drive shaft of a nail operating mechanism 43 which will be described later. It is connected so that it can be driven intermittently via means 47. Accordingly, the seedling removal power via the drive system of the seedling removal unit 40 is directly transmitted to the lateral feed shaft 44 via the transmission connecting means 47. Further, the support member 31 is supported by an interlocking rod 46 having a slider 45 provided on the lateral feed shaft 44, and the horizontal feed shaft 44 intermittently rotates in conjunction with the seedling picking operation of the seedling picking claw 41. The support member 31, that is, the seedling tray 10, together with the interlocking rod 46 via the slider 45 engaged with the traverse groove 44 a of the feed shaft 44,
It is supported so that it is intermittently fed in the horizontal direction every horizontal pitch of the pot seedling storage unit 10a.

As shown in FIG. 3, the support member 31 has a plate-like shape for supporting and guiding the seedling tray 10 between the driving wheel 33 and the driven wheel 35 on the transport side of the seedling tray 10. While the tray receiving portion 32 is attached, the side walls 31a and 31 are provided on the support member 31 on the collection side of the seedling tray 10.
a a tray collecting portion 39 for taking and guiding the transplanted empty seedling tray 10 via receiving members 71 and 72 supported below, and a tray receiving surface 32a of the tray receiving portion 32 is provided with a feeding start end portion 32b. And the drive side portion 37 of the endless belt 37
a is inclined at a predetermined angle α so that the interval between the feeding end portion 32c and the driving side portion 37a is smaller than the interval between the feeding end portion 32c and the driving side portion 37a. It intrudes into the movement locus at a predetermined angle α.

The tray collecting surface 39 of the tray collecting section 39
a is inclined at a predetermined angle β such that an interval between the collection end portion 39c and the driven side portion 37b of the endless belt 37 is larger than an interval between the collection start end portion 39b and the driven side portion 37b. And the empty seedling tray 10 is
The rectilinear movement trajectory 7b is separated downward from the collection start end 39b at a predetermined angle β in the collection direction.

In the embodiment shown in the figure, a large number of wires are used as the tray collecting portion 39, and these wires are placed below the side walls 31a, 31a via the receivers 71, 72 and the width of the support member 30. It is formed to be supported side by side at predetermined intervals in the direction.

2 and 3, reference numeral 73 denotes an auxiliary tray receiving portion attached to the support member 31 on the outer side of the driven wheel 35.

On the other hand, the seedling extraction section 40 is provided with a seedling extraction nail 41.
And a seedling holding mechanism 42 for picking up and holding a pot seedling from the pot seedling storage section 10a of the seedling tray 10 by the seedling removal claw 41 at the transfer end portion of the vertical transfer section 30; And a claw operating mechanism 43 that reciprocates linearly and swings downward during the seedling release process. The interlocking operation of these mechanisms 42, 43 causes the seedling removal claw 41 to move the pot from the seedling tray 10 to the pot. The seedlings are taken out, and the pot seedlings are held by the seedling take-out nails 41 between the take-out process and the release process. Is supplied to the transplanting claw 53 of the transplanting unit 50 that is waiting at the first time.

The transplanting section 50 is provided with a planting transmission case 51 attached to the rear side of the transmission case 1B.
And an openable / closable transplanting claw 53 supported in the planting transmission case 51 via a planting arm 52 interlocking with its internal mechanism so as to be capable of planting vertically.
2, the transplanting nail 53 is planted with a predetermined vertical movement locus over a range between the receiving position of the potted seedling released from the seedling extracting nail 41 and the transplanting position to the ridge A, and the seedling extracting nail 41 is moved. Release the pot seedlings, the pot seedlings are received at the ascending position in which the transplant nails 53 are closed, that is, the receiving position, and after receiving the pot seedlings, the transplant nails 5 are received.
3 is moved downward to the ridge A side, and the transplanting nail 53 is opened at this lowered position, so that the pot seedlings held therein are transplanted to the ridge A.

Next, the operation of the transplanter according to the present invention will be described. The intermittent rotation of the lateral feed shaft 44 interlocked with the seedling picking operation of the seedling picking claw 41 via the transmission connecting means 47 causes the support member 31 to move to the lateral feed end position in one of the left and right directions together with the interlocking rod 46 via the slider 45. When moving forward and backward, the seedling tray 10 supported by the tray receiving portion 32 of the support member 31
In this case, the drive wheels 33, 33 are driven to rotate via the drive shaft 34 by the intermittent drive of the motor M, and the endless belt is driven by the drive rotation of the drive wheels 33, 33. Along with the movement of the 37, 37, the forced transport member 38 hooked on the side wall of the pot seedling accommodating portion 10a of the seedling tray 10 moves integrally, and forcibly transports the seedling tray 10 by the forced transport member 38. Can do
This ensures that the seedling tray 10 can be fed vertically without slippage between the forced transport member 38 and the seedling tray 10.

Further, since the transverse feed shaft 44 of the transverse feed means and the seedling take-out section 40 are directly and directly connected through the transmission connecting means 47, the operation timing of the seedling take-out section 40 and the vertical transfer section 30
It is possible to minimize the transmission error between the horizontal feeding timing and to perform accurate seedling collection, and furthermore, the vertical transport unit 30 is fed horizontally, and the seedling removal unit 40 is not fed horizontally.
Since only the seedling collecting operation is performed, the seedlings extracted by the seedling extracting unit 40 can be directly supplied to the transplanting unit 50, and the planting posture of the seedlings can be stabilized.

Further, with respect to the movement trajectory of the drive side portion 37a, the feed start end portion 32b of the tray receiving surface 32a of the tray receiving portion 32 and the drive side portion 3 of the endless belt 37.
7a so as to be smaller than the distance between the feed end portion 32c and the driving side portion 37a.
Therefore, the forcible conveying member 38 is inclined upward from the lower side with respect to the bottom surface of the seedling tray 10 with respect to the bottom surface of the seedling tray 10 from the feeding start end portion 32b side to the feeding end portion 32c side. They move,
The forced conveying member 38 does not push the bottom portion of the seedling tray 10 outward to separate the seedling tray 10 from the tray receiving portion 32, and the forced conveying member 38 is located between the pot seedling receiving portions 10a, 10a of the seedling tray 10. It is possible to smoothly enter the concave groove 10b.

When the transplanted empty seedling tray 10 moves to the tray collecting section 39, the tray collecting surface 39a of the tray collecting section 39 is connected to the collecting end portion 39c and the driven side portion 37b of the endless belt 37. Is inclined at a predetermined angle β so as to be larger than the interval between the collection start end portion 39b and the driven side portion 37b, so that the seedling tray 10 moves in the collection direction. The seedling tray 10 is sequentially removed from the forced conveying member 38 by its own weight on the side of the collection starting end 39b, so that the seedling tray 10 can be smoothly separated from the forced conveying member 38, It is also possible to extract 10 at an early stage.

In the embodiment shown in FIG. 2, the seedlings are reciprocated vertically in front of the transplanting claws 53 in conjunction with the internal mechanism of the planting transmission case 51, and the seedlings are moved by the transplanting claws 53. The multi-cutter 5 that moves down just before transplanting to make a transplant hole in the multi-film F laid on the ridge A
4 and a cultivation ring 55 for cultivating a potted seedling transplanted with the transplanted nail 53 at the rear side of the transplanted nail 53.

[0028]

According to the first aspect of the present invention, since the traverse feeding means and the seedling take-out section are directly driven and connected, the transmission error between the operation timing of the seedling take-out section and the horizontal feed timing of the vertical transport section is minimized. The seedlings can be picked up directly from the open side of the seedling storage section of the seedling tray without the lateral feeding of the seedling removal claw. Since only the operation is performed, the seedlings directly taken out by the seedling taking-out claw of the seedling taking-out part can be directly supplied to the transplanting part without damaging the seedlings, and the planting posture of the seedlings can be stabilized.

According to the second aspect of the present invention, the lateral feeding means operates by directly transmitting the seedling extracting power via the drive system of the seedling extracting section. It is possible to minimize the transmission error between the horizontal feeding timing of the vertical conveying unit and to perform accurate seedling picking, and furthermore, by using the horizontal feeding means that the seedling picking power via the drive system of the seedling picking unit is directly transmitted. The vertical transport section is fed sideways, and the seedling pick-up section only performs the seedling picking operation directly from the open side of the seedling storage section of the seedling tray without the seedling picking nail being fed sideways. The seedlings directly taken out by the take-out nails can be directly supplied to the transplanting part without damaging the seedlings and the planting posture of the seedlings can be stabilized.

[Brief description of the drawings]

FIG. 1 is a schematic view of a main part of a transplanter according to the present invention.

FIG. 2 is a partially cutaway side view of the entire transplanter according to the present invention.

FIG. 3 is a longitudinal sectional side view in which only a vertical transport portion of the transplanter according to the present invention is enlarged.

FIG. 4 is an enlarged sectional view of a forced conveying member of the transplanter according to the present invention.

[Explanation of symbols]

 10 Seedling tray 33 Drive wheel 35 Follower wheel 37 Endless belt 44 Lateral feed shaft 45 Slider

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideo Nakajima 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. (56) References Japanese Utility Model 3-18709 (JP, U) ) Surveyed field (Int.Cl. ⁶ , DB name) A01C 11/02

Claims (2)

(57) [Claims] 1. A seedling tray having a plurality of concave seedling receiving portions, wherein seedlings are supported from the open side of the seedling receiving portion of a seedling tray supported by a support member.
A seedling taking out section for taking out the seedlings extraction claws, and planted graft portion seedling taken out by the該苗extraction unit, and a vertical conveying unit for longitudinal feed the seedling tray in the seedling taking-out portion side, vertical front Kinae tray and traversing means for traversing the vertical conveying unit in a direction perpendicular to the feed direction, transplanter, characterized in that it comprises a transmission connection means for transmission engaging directly between the said lateral feeding means and the seedling taking-out portion . 2. A seedling tray having a plurality of concave seedling storage portions , wherein seedlings are supported from the open side of the seedling storage portion of a seedling tray supported by a support member.
A seedling extraction section for extracting with a seedling extraction claw, a transplant section for implanting a seedling extracted by the seedling extraction section, and a vertical section of the seedling tray.
A vertical transport unit for feeding the seedling tray vertically to the seedling extraction unit side, and a seedling removal via a drive system of the seedling extraction unit , which is capable of laterally feeding in a direction orthogonal to a feeding direction. transplanter characterized in that the power is transmission directly and a traversing means for traversing the vertical conveying portion.