JP4082645B2 - Seedling transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling transplanting machine for taking out seedlings such as vegetables such as onions from a seedling tray and planting the seedlings on a field (rice cake), and relates to a configuration of a device for covering soil of a transplanting site of seedlings. is there.
[0002]
[Prior art]
A conventionally known seedling transplanter, for example, as disclosed in Japanese Patent Application Laid-Open No. 8-130932, a traveling machine body that self-propels a farm with left and right traveling wheels, an engine, a mission case, a seedling planting device, A seedling feeding device for feeding pot seedlings arranged in a matrix on the seedling tray, and for transplanting the seedling planting device to the field while holding the seedling to be transplanted at the tip of the vertical swing arm And a transfer mechanism including a seedling extraction claw for transferring a pot seedling from the seedling supply device to the transplanting cup.
[0003]
In order to improve the efficiency of this seedling transplanting work, a pair of left and right seedling extraction claws for transferring a pot seedling from a seedling tray to a transplanting cup are provided, and a transplanting mechanism including a pair of left and right transplanting cups is provided with a pair of left and right transplanting mechanisms. Developed, the interval between the seedling removal from the seedling tray by the seedling extraction nail is narrow, but the right and left placement interval (transplantation interval) of the transplanting cup is wide, so one of the right and left seedlings is directly underneath one of the seedling extraction nails By placing a cup, on the other hand, a guide tube extending in the laterally outward direction of the machine body is disposed below the other seedling extraction claw, and the other transplanting cup is disposed below the guide tube. An attempt has been made to facilitate the inheritance of pot seedlings (see JP-A-9-28130). However, in this case, the inheritance distance between the seedling extraction claw and the transplant cup is inconsistent between the left and right (the one with the guide tube is longer), so that the inheritance work is smooth when the left and right transplant mechanisms are driven synchronously. There was a problem that could not be.
[0004]
Therefore, in the Japanese Patent Application No. 10-326563, the applicant of the present invention is such that the distance between the left and right of the right and left transplanting cups is narrow on the upper side, which is the inherited side of the pot seedling, and wide on the field side. In the direction of travel, a guide rail for guiding the up-and-down movement of the transplanting cup in the right and left transplanting mechanisms has been proposed that is configured to be inclined downward and widen toward the end.
[0005]
[Problems to be solved by the invention]
However, in this case, since each transplanting cup moves up and down in an inclined posture with respect to the vertical line, there is a problem that the pot seedling is planted in an oblique posture with respect to the field scene.
[0006]
The present invention was made to solve this problem, and it is narrow at the upper part which is the inherited side of the pot seedling, and can be smoothly inherited and planted so as to be wide on the field side, It is an object of the present invention to provide a seedling transplanter that can be planted vertically.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a seedling transplanter according to the invention described in claim 1 is a pair of left and right seedlings that are taken out from a seedling tray of a seedling stand by a pair of left and right seedling extraction claws on a self-propelled field. In the seedling transplanting machine that is inherited by the transplanting cup that swings up and down and is transplanted to the field, transplantation is performed so that the left-right distance between the pair of transplanting cups is narrow at the seedling-joining position and the left-right distance is wide at the field side. The above-mentioned transplantation cups are connected so as to move up and down while their postures are parallel to the vertical direction.
[0008]
According to a second aspect of the present invention, in the seedling transplanting machine according to the first aspect, the planting transmission case is disposed between the pair of left and right transplanting mechanisms, and the right and left transplanting cups in the transplanting mechanism are guided in the vertical direction. The guide rails are arranged in such a manner that the vertical movement guide surfaces thereof are inclined in a downwardly widening direction toward the traveling direction of the traveling aircraft body, while each of the horizontal rails inclined with respect to the inclined movement guide surfaces is inclined. The left and right transplant cups are mounted via a support shaft.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, examples embodying the present invention will be described. 1 is a schematic side view of a two-row planting seedling transplanting machine, FIG. 2 is a schematic plan view of a two-row planting seedling transplanting machine, FIG. 4 is a schematic plan view of a transplanting mechanism, and FIG. FIG. 6 is a plan view of the main part of the planting mechanism, FIG. 7 is an enlarged side view of the main part of the planting mechanism, FIG. 8 is a sectional view of the main part of the planting mechanism, and FIG. Sectional drawing and FIG. 10 are side views of the transplantation mechanism.
[0010]
An airframe 1 including an engine 2 and a mission case 9 is supported by a pair of front and rear horizontally long slide frames 4 and 5 in a main frame 3 so as to be slidable left and right. The machine body 1 is configured to be capable of changing its position in the lateral direction along the slide frames 4 and 5 through a hydraulic cylinder 6 and a swing arm 7 provided on the main frame 3. Front wheels 12 and 12 are respectively attached to a pair of axle frames 13 and 13 that extend rearward from the left and right sides of the main frame 3, and at both ends of a drive horizontal shaft case 10 that extends laterally on the rear side of the main frame 3. The rear wheels 8 and 8 are mounted via the transmission cases 11 and 11, and the power from the transmission case 9 is transmitted to the rear wheels 8 and 8.
[0011]
The front and rear wheels 12 and 8 are configured to be swingable up and down via a swing shaft 15 and a swing hydraulic cylinder 14 in the main frame 3, so that the height of the airframe 1 with respect to the traveling road surface or the saddle surface M is increased. It is configured to be changeable (the height to the ground can be adjusted).
[0012]
A handle 26 extending rearward is provided at the upper end of the chassis frame 17 provided so as to extend to the rear part of the machine body 1, and the seedling supply device is arranged so that the seedling mount 21 can be reciprocated to the left and right with respect to the chassis frame 17. 16 is provided.
[0013]
The seedling stage 21 is configured to reciprocate left and right via a lateral feed mechanism, which will be described later, and the seedling stage 21 is provided with a seedling pot portion 22a in a matrix in front, rear, left and right in the traveling direction in plan view. The seedling tray 22 is placed and the seedling pot 22a is intermittently vertically fed by one pitch in the forward direction of the machine body 1 at the end of the lateral feeding by a vertical feeding mechanism (described later) provided on the seedling stage 21. It is comprised so that it may do.
[0014]
The seedling planting devices 18a and 18b as a pair of right and left seedling planting mechanisms are provided on both the left and right sides of the transmission case 19 between the rear wheels 8 and 8 on both left and right sides with the planting transmission case 19 in between (see FIG. 4). And FIG. 9).
[0015]
As shown in FIG. 2, the seedling planting devices 18a and 18b are used for transplanting to a farm while holding a swing arm 31 swinging up and down and a pot seedling N to be transplanted at the tip of the swing arm 31, respectively. A transplant mechanism 30 composed of a transplant cup 32 and the like, and a transfer mechanism 29 composed of a seedling take-out claw 23 and the like for transferring from the seedling pot portion 22a of the seedling tray 22 in the seedling supply device 16 to the transplant cup 32, Power is transmitted from the transmission case 9 to the seedling supply device 16 and the transfer mechanism 29 via a transmission path such as a chain wound around a chain sprocket.
[0016]
As shown in FIGS. 4 and 9, the two seedling extraction claws 23 and the two transplanting cups 32 on the left and right with respect to the traveling direction of the machine body 1 are arranged on the left and right with respect to the seedling tray 22 in one seedling mounting base 21. Two seedlings are taken from one seedling tray 22 and two seedlings are transplanted to the cocoon M by arranging them in parallel at regular intervals and synchronizing the phases. And before the seedling transplantation by the transplant cup 32, the multi-film which covers the heel surface M with the multi cutter 24 can be cut for every transplant location.
[0017]
Next, the seedling supply device 3 will be described in detail with reference to FIGS. 1, 2, 4, 5, and 7.
[0018]
As shown in FIGS. 2, 4, and 5, the seedling stage 21 includes a frame frame 100 having a substantially rectangular shape in plan view, and a vertical feed transmission unit as a vertical feed mechanism disposed on one side of the frame frame 100. So that the vertical feed case 101 with a built-in container, the conveying chain 102 for vertically feeding the seedling tray 22, the large and small chain sprockets 103, 104, and the empty seedling tray 22 are guided toward the rear end of the handle 26. It consists of an arranged guide frame. The front guide roller 109 mounted on the frame frame 100 or the like of the seedling stage 21 is inserted into the left and right longitudinal U-shaped guide rails fixed to the chassis frame 17, while the downward-facing core roller 109 on the rear side of the frame frame 100 is inserted. A seedling table 21 is mounted so as to be movable left and right by placing a letter-shaped guide rail on sliding guide pieces fixed to the left and right sides of the chassis frame 17.
[0019]
The seedling tray 22 is made of a flexible soft synthetic resin material, and can be bent along the circumference of the large-diameter chain sprocket 103 when mounted on the transport chain 102 and transported. The pair of left and right transport chains 102 and 102 are rotatably mounted on a large-diameter chain sprocket 103 mounted on a vertical feed drive shaft 110 driven via a power transmission system in the vertical feed case 101 and a frame frame 100. The small driven chain sprocket 104 is wound around the driven shaft. The pair of left and right transport chains 102, 102 is provided with a laterally engaging pin 112 protruding at an appropriate pitch P 2, and the right and left engaging pins 112 are arranged in the seedling tray 22 in the front-rear direction of transport. It is engaged with the lower surface side of the continuous portion 22a and reliably conveyed in the direction of arrow C in FIG.
[0020]
A reciprocating feed screw portion is formed on the transverse feed shaft that protrudes from the transmission case in the transverse feed mechanism, and a feed block with a ship-type key that is screwed to the reciprocating feed screw portion and a member that protrudes from the frame in the seedling platform 21. An engagement piece such as a joint bolt is connected, and the seedling mount 21 is configured to reciprocate left and right in the lateral width direction of the seedling tray 22.
[0021]
On the other hand, the vertical feed shaft 118 protruding from the transmission case 114 is intermittently rotated at the lateral feed end position of the seedling stage 21, and a pair of lateral feed distances provided on the vertical feed shaft 118 is provided. The kick claws 119, 119 kick and rotate a driven cam (not shown) provided in the vertical feed case, intermittently rotate the vertical feed drive shaft 110 via the transmission portion in the vertical feed case 101, and seedlings. The pot portion 22a is configured to be intermittently vertically fed by a constant pitch.
[0022]
Next, the configuration of the inheriting mechanism 29 including the seedling extraction claws 23 and the like will be described with reference to FIGS. The inheriting mechanism 29 takes out a pot seedling N from one pot portion 20a with a pair of left and right seedling picking claws 23, 23, which will be described later, and the pot seedling N is almost right above each transplanting cup 32 in the raised position. The seedling transplanting machine of the present embodiment is of a two-row planting type, so that the inheriting mechanism 29 and the transplanting are arranged. It is assumed that the mechanism 30 is arranged at a predetermined interval left and right with respect to the traveling direction of the body 1 (see FIG. 9).
[0023]
An output shaft 58 in a planting clutch case 57 that is linked to the input shaft 56 of the mission case 9 is provided with a planting clutch 58a. When the clutch is ON, both ends of the output shaft 58 are connected via chains 59 and 59. The chain sprockets 63, 63 of the rotary input shaft 71 in the left and right rotary cases 72 are driven to rotate (see FIG. 6). A support plate 68 is fixed to each bracket 67 fixed to the left and right sides of the traveling machine body 1, and an input shaft to which power is transmitted from the chain sprocket 63 is disposed on the inner periphery of the sun gear 70 fixed to the support plate 68. 71 is rotatably fitted, and the other end of the input shaft 71 is fixed to the rotary case 72 so as to rotate integrally (see FIG. 8).
[0024]
In the rotary case 72, an intermediate gear 73 that meshes with the sun gear 70 and a planetary gear 75 that is fixed to the crankshaft 74 and meshes with the intermediate gear 73 are housed, and a crank arm 76 attached to the crankshaft 74 is provided. A camshaft 77 protruding from the tip end is rotatably fitted with a seedling extraction arm 78 having a pair of left and right seedling extraction claws 23, 23 attached to one end. A guide shaft 79 protruding from the other end of the seedling extraction arm 78 is slidably fitted in a substantially arc-shaped guide groove 81 in a guide plate 80 fixed in parallel to the support plate 68, and the input In one rotation of the rotary case 72 around the shaft 71, the pair of seedling extraction claws 23, 23 is inserted into the seedling pot portion 22 a of the seedling tray 22, and the spatula portion 23 a at the tip of the seedling extraction claws 23, 23 pierces the pot seedling. A trajectory 82 (see FIG. 7) that returns to the original through a posture of sandwiching N is configured.
[0025]
Each seedling extraction claw 23 for an onion seedling has a spatula portion 23a attached to the tip of a rod-like shaft, and the spatula portion 23a has a deformed rhombus shape in a side view and the tip (lower end) side is narrowed. In addition, since the cross section is formed of a thin metal plate or the like so as to have an obtuse L shape, the seedling soil is not easily broken when the seedling is extracted from the seedling pot portion 22a of the seedling tray 22.
[0026]
Further, the base end attachment pieces 83, 83 of the pair of right and left seedling picking claws 23, 23 are fixed to L-shaped pivots 84, 84, and each pivot 84 is attached to a spectacle-shaped attachment part 78 a in the seedling removal arm 78. The tip end side of the pair of left and right seedling extraction claws 23, 23 is constantly biased by a spring that is rotatably mounted and connects the left and right attachment pieces 83, 83.
[0027]
A cam plate 86 is fixed to the cam shaft 77, and arc-shaped end face cam portions 87 and 87 are provided on the wide front and back surfaces of the cam plate 86 along a circumferential direction in a section of a rotation angle. When spherical contact pieces 88, 88 projecting from the base end attachment pieces 83, 83 of the pair of left and right seedling picking claws 23, 23 are opposed to each other, ride on the end cam portions 87, 87. The tips of both seedling extraction claws 23, 23 are configured to open against the force of the spring.
[0028]
Next, the structure of the transplant mechanism 30 in the seedling planting devices 18a and 18b will be described with reference to FIGS. A chain sprocket in the planting transmission case 19 in the planting transmission case 19 in the pair of left and right transplanting mechanisms 300 and 30 is attached to both ends of the PTO shaft 9a as an output shaft protruding from the side surface of the mission case 9, and the free end side in the planting transmission case 19 is attached. A chain 38 is wound around a chain sprocket fitted to the rotary shaft 36 to transmit power.
[0029]
On the left and right flange bodies 34a, 34b on the free end side of the planting transmission case 19, the mounting shafts 37 of the rotary cases 40 are mounted horizontally on both ends of the rotating shaft 36 via ball-type universal joints 35 with respect to the horizontal. It connects so that it may become the shape which becomes an upward direction as it goes to the outward direction. In each rotary case 40, an intermediate gear 41 that meshes with a sun gear 39 that rotates integrally with the mounting shaft 37 and a planetary gear 42 that meshes with the intermediate gear 41 are rotatably supported in the rotary case 40. Further, a crank arm 45 is fixed to the support shaft 44 to which the planetary gear 42 is attached, and a tip shaft 46 of the crank arm 45 is rotatably mounted in the middle portion of the swing arm 31. A guide roller 47 at the base end of the swing arm 31 is fitted to a vertically long guide rail 48 so as to be vertically slidable. As shown in FIG. 12, the pair of left and right guide rails 48 and 48 are inclined so that the upper side is close to the left and right center of the base end and spreads outward as it goes down in the front view or the rear view of the airframe 1. In the example, θ is erected on the airframe so as to be inclined downward and outward by about 6 degrees with respect to the vertical line. Accordingly, a pair of left and right transplanting cups 32, 32, which will be described later, is designed so that the width W between the left and right is narrow at the raised position and widens when lowered to the heel surface M.
[0030]
Further, each transplant cup 32 is composed of a pair of cup bodies 32a and 32b obtained by halving a substantially conical shape that squeezes downward, and is attached to the upper ends of the cup bodies 32a and 32b. 49a and 49b are pivotally supported by a support plate 50 protruding from one side of the swing arm 31 (see FIG. 10). In this case, as shown in FIG. 9, the plane including the wide surface of each support plate 50 is inclined downwardly with respect to the vertical line by the inclination angle θ as shown in FIG. 9. Then, the rotation support shafts 49a and 49b to which the cup bodies 32a and 32b are attached are horizontally mounted on the inclined support plates 50 and 50 so as to be rotatable. In other words, the axis of each rotation support shaft 49a, 49b is arranged so as to protrude in an inclined manner with respect to the inclined support plates 50, 50, and each cup body 32a, 32b maintains a state of being oriented in the vertical direction. It will move up and down.
[0031]
Then, both pivot shafts 49a and 49b are configured to pivot in opposite directions to each other via an X-shaped link mechanism 51 formed by pivoting the middle of two link pieces with a pin. The link mechanism 51 is biased by a spring 52 in a direction in which the lower ends of the pair of cup bodies 32a and 32b are always closed. The proximal end of the push rod 53 connected to the link mechanism 51 is supported so as to be movable forward and backward with respect to the swing arm 31, and the proximal end of the push rod 53 is covered with the distal end shaft 46 of the crank arm 45. It is provided so as to be in constant contact with the cam 54 that fits and rotates integrally.
[0032]
With this configuration, when the rotary case 40 is rotated in the direction of arrow A in FIG. 13 during transplanting of the seedling, the crank arm 45 is rotated by the meshing rotation of the sun gear 39, the intermediate gear 41, and the planetary gear 42. The swinging arm 31 that rotates in the direction of arrow B and is connected to the crank arm 45 moves up and down along the guide rail 48 while swinging back and forth around the location of the guide roller 47. Is moved up and down along the locus 55 (only a part of the upper side is shown) and moved from the front position of the seedling tray 22 to the ridge 7.
[0033]
At this time, the rotation support shafts 49a and 49b to which the cup bodies 32a and 32b are attached are horizontally mounted on the inclined support plates 50 and 50 so as to be rotatable. The transplant cup 32 remains in a vertical posture from the highest position to the lowest position, and as shown in FIG. 9, the left and right direction of the left and right transplant cups 32, 32 are directed toward the traveling direction of the machine body 1. Is narrow at the highest position (approximately equal to the left and right distance between the lower ends of the left and right seedling picking claws 23, 23 above), and swings up and down so as to increase at the lowest position.
[0034]
Further, the lower end of the pair of cup bodies 32a and 32b is closed at the upper position of the transplanting cup 32, and therefore the posture can be maintained even if the pot seedling N to be transplanted is inserted from above. On the other hand, when the transplanting cup 32 is lowered and the lower ends of the cup bodies 32a and 32b are pierced into the soil surface of the ridge 7, the pushing ridge 53 is pushed out by the cam 54, and both pivotal support shafts 49a are connected via the link mechanism 51. , 49b are rotated in opposite directions to open the lower ends of the cup bodies 32a, 32b, so that the pot seedling N inside can be transplanted to the heel M.
[0035]
In addition, in order to suppress the heel surface M behind the seedling transplanting site, as shown in FIGS. 3, 4, 11, and 12, in the case of double row planting, the center side in the width direction of the body 1 (odd number From the first soil covering roller 20a disposed at a position sandwiched between the strip and the even strip) and the second soil covering roller 20b disposed near the outer side in the width direction of the machine body 1 (a portion sandwiching the odd strip and the even strip from the outside). Are provided so as to sandwich each seedling transplant strip N1, N2. In this case, in each seedling transplanting strip N1, N2, the lower end side of the first covering roller 20a and the second covering roller 20b is narrow and the upper end side is set to be inclined in a rear view so that the upper end side is wide. Is done.
[0036]
Therefore, as shown in FIGS. 11 and 12, the front and rear longitudinal left and right frames 91 a of the round pipe-shaped main frame 91 fixed to the chassis frame 17 on the rear surface of the lower surface of the machine body 1 face downward. A bracket 93 is fixed, and a front end of a roller frame 92 extending rearward of the machine body 1 is pivotally supported on the bracket 93 by a horizontal shaft 94. Attached to the mounting brackets 95, 95 projecting from the rear arm portions 92a on both the left and right sides of the roller frame 92 toward the center in the width direction, the axle 96 is inclined so as to rise upward toward the center in the width direction of the body 1. The second soil covering roller 20b is rotatably mounted on each axle 96 via a bearing.
[0037]
At the rear end of a common mounting bracket (not shown) projecting rearward from the left and right center of the roller frame 92, bearings are disposed at the left and right end portions, and a common axle having a "<" shape when viewed from the rear. 97 is fixed, and two first soil covering rollers 20a and 20a as central soil covering rings are mounted on the left and right ends of the common axle 97 so as to be rotatable in an inclined manner so that the arrangement interval on the upper end side is narrowed. It is.
[0038]
On the other hand, on the lower surface of the central pipe 91b provided from the left and right center to the rear downward direction in the main frame 91, it is the front between the pair of left and right first soil covering rollers 20a and 20a and A longitudinal hook-shaped guide body 98 is fixed to the front and rear at an appropriate height position close to the position via a bracket 99 or the like. As shown in FIG. 12, the guide body 98 is formed so as to widen in the left-right width in the plan view as it goes to the rear of the machine body 1 (as it approaches the pair of left and right first soil covering rollers 20a and 20a). The width of the rear end of the body 98 is wider than the left-right distance between the lower ends of the pair of left and right first soil covering rollers 20a and 20a. In addition, the left and right side edges of the guide body 98 are curved so as to face upward as they go behind the machine body 1. Therefore, when the body 1 moves forward on the farm scene (growing surface) M where the paddy field is cultivated, the rice crop 100 that protrudes from the farm scene (growing surface) M is moved leftward or rightward by the guide body 98. It can be pushed away (displaced) in the lateral direction. This reliably prevents the rice crop 100 that passes through the lower ends of the pair of left and right first covering rollers 20a, 20a having a narrow interval between the left and right sides from being entangled with the common axle 97, and the covering rollers 20a, 20a are smooth. So that it can rotate.
[0039]
Reference numeral 101 shown in FIGS. 11 and 12 is a lifting adjustment mechanism that can change the height positions of the first soil covering roller 20a and the second soil covering roller 20b together with the roller frame 92. This is a downward urging force adjusting mechanism of the roller frame 92 (first covering roller 20a and second covering roller 20b) by the spring 103 with respect to the frame 91.
[0040]
With the above configuration, when the seedling supply device 3 and the seedling planting device 2 are operated while the machine body 1 is moved forward, the seedling mount 21 in the seedling supply device 16 moves to the right or left of the traveling direction. The pot seedling N is nipped and extracted from the seedling pot portion 22a of the seedling tray 22 with the spatula portions of the left and right seedling extraction claws 23, 23 in the inheritance mechanism in synchronism with each other, at the upper end position of the locus 55 in FIG. The pot seedling N is discharged into a certain transplanting cup 32. Since the left and right transplanting cups 32 and 32 at the upper end position are in a vertical posture, the pot seedling N discharged (dropped) from the left and right seedling extraction claws 23 and 23 is easily received. Since the posture when the transplanting cup 32 descends and pierces the heel surface M is also vertical, the pot seedlings N in the respective transplanting cups 32 are also transplanted in the vertical posture. Since it is difficult to fall sideways or tilted sideways, it is possible to smoothly grow vegetables later.
[0041]
【The invention's effect】
As described above, the seedling transplanting machine according to the first aspect of the present invention provides a pair of left and right seedlings that are taken out from a seedling tray of a seedling stand by a pair of left and right seedling extraction claws on a self-propelled field. In the seedling transplanting machine that is inherited by the transplanting cup that swings up and down and is transplanted to the field, transplantation is performed so that the left-right distance between the pair of transplanting cups is narrow at the seedling-joining position and the left-right distance is wide at the field side. Since the transplanting cup is configured to move up and down while maintaining the posture of the transplanting cup parallel to the vertical direction, the right and left of the pair of right and left transplanting cups at the seedling transfer position In a farming scene, the seedling can be transplanted with a pair of left and right transplanting cups with a narrower spacing, and the transplanting cup moves up and down in a vertical state. With the seedling dropping is released from the seedling taking out the nail easily inherited by each transplant cup in location, since also the posture of the seedlings were transplanted in the field plane may be a vertical state, thereby improving seedling development. In particular, in the case of straight-rooted plants, such as onion seedlings, the root part of the pot seedling N does not stretch too much on the seedbed soil, so that this kind of seedling is transplanted vertically to improve the later growth. Play.
[0042]
Then, a planting transmission case is disposed between the pair of left and right transplanting mechanisms, and a guide rail for guiding the left and right transplanting cups in the transplanting mechanism in the vertical direction, the vertical movement guide surface thereof in the traveling direction of the traveling machine body. The left and right transplant cups are mounted via horizontal support shafts that are inclined with respect to the inclined moving guide surface, while being arranged so as to be inclined downwardly and facing downward. The power transmission from the planting transmission case to the left and right transplanting mechanisms can be easily performed, while the transplanting cup is supported by the horizontal support shaft even if the left and right guide rails are inclined downward and widening. With such a configuration, there is an effect that each transplanting cup can move up and down in a vertical state.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a seedling transplanter.
FIG. 2 is a schematic plan view of a seedling transplanter.
FIG. 3 is a schematic rear view of the seedling transplanter.
FIG. 4 is a plan view of a main part of a seedling transplanting part.
FIG. 5 is a side view of a main part of the inheritance mechanism and the seedling supply device.
FIG. 6 is a cross-sectional view of a main part of the splicing mechanism.
FIG. 7 is a side view showing the positional relationship among the inheritance mechanism, the seedling supply device, and the transplanting cup.
FIG. 8 is an enlarged cross-sectional view of a main part of the splicing mechanism.
FIG. 9 is a cross-sectional view of a main part of the transplantation mechanism.
FIG. 10 is a side view of the transplantation mechanism.
FIG. 11 is a schematic side view of a mounting portion of a soil covering roller.
12 is a plan view taken along line XII-XII in FIG.
[Explanation of symbols]
1 Airframe
8 Rear wheels
12 Front wheels
16 Seedling feeder
18a, 18b Seedling planting device
19 Planting transmission case
21 Seedling stand
22 Seedling tray
22a Pot part
23 Seedling extraction nails
29 Inheritance mechanism
30 Transplant mechanism
32 transplant cup
34a, 34b flange body
35 universal joints
36 Rotating shaft
40 Rotary case
45 Crank arm
48 Guide rail
49a, 49b Rotating spindle

Claims (2)

In a seedling transplanting machine that transfers a seedling taken out from a seedling tray of a seedling stand by a pair of left and right seedling extraction claws to a pair of left and right swinging transplant cups and transplants to the field, which is self-propelled in the field. The transplanting mechanism of the transplanting cup is configured so that the lateral distance between the pair of transplanting cups is narrow at the seedling transfer position and the lateral distance is wide on the field side, and the posture of each of the transplanting cups is vertical. A seedling transplanter characterized by being connected so as to move up and down while being parallel to the direction. A planting transmission case is arranged between a pair of left and right transplanting mechanisms, and guide rails for guiding the left and right transplanting cups in the transplanting mechanism in the vertical direction, the vertical movement guide surface thereof is directed in the traveling direction of the traveling machine body. The left and right transplant cups are mounted via horizontal support shafts that are inclined with respect to the inclined moving guide surface, while being arranged so as to be inclined downward and downward. The seedling transplanter described.

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