JP3836780B2 - Transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transplanter.
[0002]
[Prior art]
Conventionally, as one form of the transplanter, a vertical transport mechanism for vertically transporting the seedling tray, a horizontal transport mechanism for laterally transporting the vertical transport mechanism, a seedling extraction mechanism for taking out the pot seedling from the seedling pot of the seedling tray, Some are equipped with a planting mechanism that receives the pot seedlings taken out by the seedling extraction mechanism and plants them in the cocoon.
[0003]
The horizontal transport mechanism is arranged at the rear of the machine body, the horizontal transport drive mechanism is linked to one side of the horizontal transport mechanism, and the seedling take-out mechanism is placed near the front of the vertical transport mechanism. The seedling extraction drive mechanism is linked to the seedling extraction mechanism in the vicinity of the seedling extraction mechanism, and the planting mechanism is arranged in the vicinity of the front of the seedling extraction mechanism so that the planting mechanism is driven by The mechanism is linked and connected (for example, refer to Patent Document 1).
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 5-80215
[Problems to be solved by the invention]
However, in the transplanter described above, the lateral transport drive mechanism, the seedling extraction drive mechanism, and the planting drive mechanism are dispersedly arranged, so that these drive mechanisms are not easy to assemble and maintain. Since the driving mechanism is relatively heavy, there is a problem that the weight balance between the front and rear of the aircraft, and further, the left and right is deteriorated.
[0006]
[Means for Solving the Problems]
Therefore, in the present invention, a vertical conveyance mechanism that vertically conveys the seedling tray, a horizontal conveyance mechanism that horizontally conveys the vertical conveyance mechanism, a seedling extraction mechanism that takes out the pot seedling from the seedling pot of the seedling tray, and the same seedling extraction Rotation of the output shaft of the mission case linked to the engine in a transplanting machine equipped with a planting mechanism for receiving the pot seedling taken out by the mechanism and planting it in a basket , a pair of left and right rear wheels, and an engine for driving them A drive case provided with an input shaft to which is input, a seedling output shaft that outputs the rotation of the input shaft to a seedling extraction mechanism, and a planting output that outputs the rotation of the input shaft to the planting mechanism The shaft and the lateral feed output shaft that outputs the rotation of the input shaft to the lateral transport mechanism are accommodated in the one drive case, and the drive case is positioned in front of the planting mechanism and between the left and right rear wheels. Placed in There is provided a transplanter according to claim.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0009]
That is, the transplanter according to the present invention includes a vertical conveyance mechanism that vertically conveys the seedling tray, a horizontal conveyance mechanism that horizontally conveys the vertical conveyance mechanism, and a seedling extraction mechanism that extracts the pot seedling from the seedling pot of the seedling tray. , Equipped with a planting mechanism for receiving the pot seedling taken out by the seedling extraction mechanism and planting it in the pod, a lateral conveyance drive mechanism that drives the lateral conveyance mechanism, a seedling extraction drive mechanism that drives the seedling extraction mechanism, A planting drive mechanism for driving the planting mechanism is accommodated in one drive case, and the drive case is disposed at a position ahead of the planting mechanism.
[0010]
The above transplanter is provided with a pair of left and right rear wheels, and a drive case is disposed between the left and right rear wheels.
[0011]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
A shown in FIG. 1 is a transplanter according to the present invention. The transplanter A includes a traveling unit 1, a seedling supply unit 2 disposed at the rear of the traveling unit 1, and a front of the seedling supply unit 2. The seedling transplanting section 3 disposed in the position is provided, and the pot seedling (not shown) supplied from the seedling supply section 2 is supplied to the field by the seedling transplanting section 3 while the traveling section 1 is self-propelled in the field G. It is intended to be transplanted to the ridge U of G.
[0013]
The traveling unit 1 has front wheels 6 and 6 attached to the front portion of the body frame 4 via a pair of left and right front wheel support arms 5 and 5, and a rear wheel drive case 7 serving as a pair of left and right rear wheel support arms on the rear portion. , 7 are attached to the rear wheels 8, 8, and the front and rear wheels 6, 6, 8, 8 are linked to the lifting mechanism 9, and the lifting mechanism 9 also functions as a lifting sensor. The planting depth of the pot seedling by the seedling transplanting part 3 by raising and lowering the front and rear wheels 6,6,8,8 based on the lifting and lowering movement amount along the saddle surface U of the pressure wheel (not shown) The height can be kept constant.
[0014]
The engine 10 is mounted on the front part of the fuselage frame 4, the mission case 11 is disposed at the rear position of the engine 10, and the mission case 11 is linked to the engine 10 to the transmission case 11. The rear wheel drive cases 7, 7, the seedling supply unit 2, and the seedling transplanting unit 3 are linked to each other. 12 is a bonnet and 13 is a stand for seedlings.
[0015]
Further, as shown in FIGS. 1 and 2, a pair of left and right handle support frames 15 and 15 are extended at the rear end portion of the body frame 4 via the support body 14 so as to support both handles. A handle 16 formed in a U shape in plan view is attached to the rear ends of the frames 15, 15. A lower lever guide support 17 is installed between the lower portions of the handles 16, and a depth of the lower lever guide support 17 is planted. The adjusting lever guide body 18, the inter-strain adjusting lever guide body 19 and the main transmission lever guide body 20 are arranged adjacent to each other in the left-right direction, and the planting depth adjusting lever 21 and the inter-strain are interposed through the lever guide bodies 18, 19, 20 respectively. The adjustment lever 22 and the main speed change lever 23 are arranged continuously in the left-right direction.
[0016]
Then, an upper lever guide support 24 is installed between the upper portions of the handle 16, and the planting clutch lever guide body 25 is disposed on the left side of the upper lever guide support 24, while the lifting lever guide body 26 is disposed on the right side. The planting clutch lever 27 and the elevating lever 28 are disposed through the lever guide bodies 25 and 26, respectively.
[0017]
A cover ring adjusting body 31 is provided between the pair of left and right handle support frames 15, 15, and a cover ring ring supporting body 32 extending in the front-rear direction is installed between the cover soil ring adjusting body 31 and the transmission case 11. A covering ring 33 is attached to the covering ring support 32.
[0018]
As shown in FIGS. 1 and 2, the seedling supply unit 2 is disposed between the middle part of the pair of left and right handle support frames 15 and 15, and includes a vertical transport mechanism 35 that vertically transports the seedling tray T. A horizontal transfer mechanism 36 for horizontally transferring the vertical transfer mechanism 35 is provided.
[0019]
As shown in FIG. 1, the vertical transport mechanism 35 vertically transports the seedling tray T in which the seedling pots P are formed in the vertical and horizontal directions in the forward and downward directions at intervals of the seedling pots P, which will be described later. The seedling transplanting section 3 transplants a pot seedling (not shown) in the seedling pot P onto the heel surface U, and the empty seedling tray T is conveyed back and upward.
[0020]
As shown in FIGS. 1 to 5, the horizontal transport mechanism 36 is disposed below the vertical transport mechanism 35, and has the same structure as a horizontal feed shaft 37 linked to the vertical transport mechanism 35 with the axis line in the left-right direction. The lateral feed shaft 37 is interlocked and connected to the middle portion of the lateral feed shaft 37, and has a laterally moving body 38 for laterally moving the lateral feed shaft 37 in the axial direction. A feed groove 37a is formed.
[0021]
The laterally movable body 38 passes through the lateral feed shaft 37 through the gear case 39 opened in the left-right direction, surrounds the outer periphery of the central portion of the lateral feed shaft 37 by the cylindrical piece 40, and the inner circumference of the cylindrical piece 40 An engaging piece 41 is projected on the surface, and the engaging piece 41 is slidably engaged in the lateral feed groove 37a, and an input bevel gear 42 is provided on the left outer peripheral surface of the cylindrical piece 40. On the other hand, an output bevel gear 43 is provided at the center of the front wall of the gear case 39, and the output bevel gear 43 is engaged with the input bevel gear.
[0022]
An input shaft 44 that supports the output bevel gear 43 is linked to a drive case 45, which will be described later, via a rear drive shaft 46, and the drive case 45 → the rear drive shaft 46 → the input shaft 44 → the output bevel gear 43 → Power is transmitted from the input bevel gear 42 to the cylindrical piece 40, and the cylindrical piece 40 is rotated about the axis of the lateral feed shaft 37, whereby the lateral feed shaft 37 is moved laterally via the engagement piece 41. I am doing so.
[0023]
In addition, an engagement protrusion 47 is provided on the ceiling wall of the gear case 39, and a guide cylinder piece 48 having an axis line in the left-right direction is engaged with the engagement protrusion 47 so that the guide cylinder piece 48 is engaged. Insert a non-rotating rod 49 into the inside and connect the left and right ends of the non-rotating rod 49 to the left and right ends of the lateral feed shaft 37 via connecting pieces 50 and 50, respectively. The rotation of the shaft 37 is stopped. 51 is a bellows-like cover body.
[0024]
As shown in FIG. 1, a vertical feed interlocking mechanism 52 is interposed between the horizontal transport mechanism 36 and the vertical transport mechanism 35. The vertical feed interlocking mechanism 52 is shown in FIGS. 3 to 5 and FIG. As shown in the figure, a cam 53 is coaxially connected to the input bevel gear 42, and a support shaft 54 having an axis line in the left-right direction is horizontally mounted on the lower portion of the gear case 39 so as to be rotatable around the axis line. The work piece 55 is attached to the left side of the shaft 54, and the support shaft 54 is rotated and biased by the coil spring 56 in a direction in which the work piece 55 comes into contact with the cam 53. 53 is in contact.
[0025]
As shown in FIG. 5, the right end portion of the support shaft 54 is projected outward from the gear case 39, and the projecting end portion 54a has a base of an L-shaped working piece 57 as shown in FIG. As shown in FIG. 7, while the end portions are continuously provided, as shown in FIG. 7, interlocking support shafts 59 with the axis lines in the left-right direction are provided, and the interlocking pieces 60 are respectively provided on the left and right side portions of the interlocking support shaft 59. 61, and a ratchet action piece 62 is provided on the interlocking support shaft 59 so that the ratchet action piece 62 acts on a longitudinal feed ratchet 64 provided on the left end of the longitudinal feed shaft 63. ing.
[0026]
When the tip of the action piece 57 acts on any of the interlocking pieces 60 and 61, the ratchet action piece 62 protruding from the interlocking support shaft 59 acts on the longitudinal feed ratchet 64, and the longitudinal feed The vertical feed shaft 63 is rotated by a fixed amount only in one direction via the ratchet 64 so that the seedling tray T is vertically fed by one stage of the seedling pot P.
[0027]
In this way, after the horizontal movement of the seedling pot P formed on the seedling tray T by the horizontal row, the seedling pot P is fed vertically by one stage, and again moved laterally by the horizontal row, the seedling pot The operation of feeding vertically by one stage of P is repeated.
[0028]
At this time, the actuating piece 55 of the longitudinal feed interlocking mechanism 52 is brought into contact with a cam 53 coaxially connected to the input bevel gear 42 so that the rotational speed of the lateral feed and the rotational speed of the longitudinal feed are the same. Thus, the phase difference is not generated in the switching process.
[0029]
Therefore, according to the type of the seedling tray T, the lateral feed switching lever (not shown) provided protruding from the drive case 45 is switched to change the rotational speed of the lateral feed. The rotational speed of the horizontal feed and the rotational speed of the vertical feed can be made the same so that the phase does not shift. Moreover, since the structure is simple, assembly work can also be performed reliably.
[0030]
In FIG. 7, reference numeral 65 denotes a vertical feed amount adjusting mechanism. The vertical feed amount adjusting mechanism 65 has first and second claw pieces 66 and 67 linked to a vertical feed ratchet 64 attached to a vertical feed shaft 63. The first and second gears 68 and 69 are switched by a vertical feed switching lever 70 so that the vertical feed amount can be changed in two stages.
[0031]
As shown in FIGS. 1 and 7, the seedling transplanting unit 3 includes a seedling extracting mechanism 71 for extracting a pot seedling (not shown) from the seedling tray T of the seedling supplying unit 2, and a pot extracted by the seedling extracting mechanism 71. And a planting mechanism 72 for receiving the seedlings and planting the pot seedlings on the surface U.
[0032]
As shown in FIGS. 1 and 7, the seedling removal mechanism 71 is coupled to a seedling removal rotor case 74 that is linked to a drive case 45, which will be described later, via a seedling removal transmission chain 73, and to the seedling removal rotor case 74. An open / close cam 75 connected, a pair of left and right seedling picking claws 76, 76 that are opened and closed by the opening / closing cam 75, and pushers 77, 77 inserted into the seedling picking claws 76, 76 are provided. 78 is a guide body, and 79 is a guide roller.
[0033]
As shown in FIGS. 1 and 7, the planting mechanism 72 interlocks and connects the planting rotor case 81 to the drive case 45, and interlocks and connects the opening and closing cam 82 to the planting rotor case 81. A planting claw 83 as an opening device is interlocked and connected, and the planting claw 83 is formed by opening and closing a pair of front and rear planting claw forming pieces 83a, 83a and closed by the opening / closing cam 82. In addition to receiving the pot seedling at the same time, the potted surface U is opened and lifted by the opening and closing cam 82 so as to leave the pot seedling on the potted surface U so that the planting can be completed. .
[0034]
As shown in FIGS. 1, 6, and 7, the drive case 45 is disposed between the pair of left and right rear wheels 8, 8 and within the front-rear width of the rear wheel 8. A front drive shaft 87 is interposed between the projecting output shaft 85 and the input shaft 86 projecting forward from the drive case 45.
[0035]
The input shaft 86 is interlocked with a transmission shaft 88 whose axis is directed in the front-rear direction, and the seedling output shaft 89 and the planting output shaft 90 are interlocked with the transmission shaft 88 with the axis line directed in the left-right direction. The seedling output shaft 89 has an output side sprocket 91 provided at the protruding end and an input side splat provided on the input shaft 84 of the seedling extraction mechanism 71 with the tip protruding outside the drive case 45. The seedling extraction transmission chain 73 described above is wound around 92. Further, the planting output shaft 90 is interlocked and connected to the planting rotor case 81 described above.
[0036]
Further, a lateral feed output shaft 94 is interlocked and connected to the input shaft 86 via a transmission shaft 93. The transmission shaft 93 is provided with shifters 93a and 93b, and a shift fork (not shown) is provided on the shifters 93a and 93b. ), A lateral feed switching lever (not shown) is linked and connected so that the lateral feed amount can be switched in two stages by the lateral feed switching lever.
[0037]
The lateral feed output shaft 94 is linked to the input shaft 44 of the lateral transport mechanism 36 via the rear drive shaft 46 described above.
[0038]
A transmission belt 99 is wound around pulleys 97 and 98 between an input shaft 95 projecting leftward from the mission case 11 and an output shaft 96 projecting leftward from the engine 10.
[0039]
In this way, power is transmitted from the engine 10 to the transmission case 11, power is transmitted from the transmission case 11 to the drive case 45, and the seedling extraction mechanism 71, the planting mechanism 72, and the lateral transfer mechanism 36 are transmitted from the drive case 45. The power is transmitted to each.
[0040]
【The invention's effect】
In the present invention according to claim 1, a vertical transport mechanism that vertically transports the seedling tray, a horizontal transport mechanism that laterally transports the vertical transport mechanism, a seedling extraction mechanism that takes out the pot seedling from the seedling pot of the seedling tray, The output of the mission case linked to the engine in a transplanting machine equipped with a planting mechanism for receiving the pot seedling taken out by the seedling extracting mechanism and planting it in a cocoon , a pair of left and right rear wheels, and an engine for driving them. One drive case having an input shaft to which rotation of the shaft is input is arranged, a seedling output shaft that outputs the rotation of the input shaft to the seedling extraction mechanism, and the rotation of the input shaft is output to the planting mechanism The planting output shaft and the lateral feed output shaft for outputting the rotation of the input shaft to the lateral transport mechanism are accommodated in the one drive case, and the drive case is positioned in front of the planting mechanism and on the left and right sides. located between the rear wheels To have.
[0041]
In this way, since the lateral conveyance drive mechanism, the seedling extraction drive mechanism and the planting drive mechanism are collectively accommodated in one drive case, the assemblability and maintainability can be improved. The high quality can be ensured.
[0042]
In addition, since the drive case that is a heavy load is arranged in front of the planting mechanism, the center of gravity of the aircraft can be positioned near the center of the aircraft, and the weight balance of the aircraft can be improved. it can.
[0044]
In addition , because the heavy-weight drive case is placed between the left and right rear wheels, the weight balance between the front and rear of the fuselage, as well as the left and right, can be improved, driving stability, and porting work efficiency. Can be improved.
[Brief description of the drawings]
FIG. 1 is a side view of a transplanter according to the present invention.
FIG. 2 is a plan view of the latter half of the transplanter.
FIG. 3 is a cross-sectional plan view of a transverse feed shaft.
FIG. 4 is a sectional side view of the transverse feed shaft.
FIG. 5 is a plan view of a work piece.
FIG. 6 is a side view of a drive case.
FIG. 7 is a power transmission diagram.
[Explanation of symbols]
A transplanter 1 traveling unit 2 seedling supply unit 3 seedling transplanting unit 4 body frame 5 front wheel support arm 6 front wheel 7 rear wheel drive case 8 rear wheel

Claims (1)

A vertical transport mechanism that transports the seedling tray vertically, a horizontal transport mechanism that transports the vertical transport mechanism laterally, a seedling extraction mechanism that extracts the pot seedling from the seedling pot of the seedling tray, and the pot seedling that is removed by the seedling extraction mechanism In a transplanter equipped with a planting mechanism for planting in a cocoon , a pair of left and right rear wheels, and an engine for driving them,
One drive case with an input shaft to which the rotation of the output shaft of the mission case linked to the engine is input,
A seedling output shaft that outputs the rotation of the input shaft to a seedling extraction mechanism, a planting output shaft that outputs the rotation of the input shaft to a planting mechanism, and a lateral feed that outputs the rotation of the input shaft to a horizontal conveyance mechanism An transplanter characterized in that an output shaft is accommodated in the one drive case, and the drive case is disposed in front of the planting mechanism and between the left and right rear wheels .

Images