JP3785099B2 - Transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transplanter, and more particularly to a transplanter equipped with a perforating device for forming a hole for seedling planting in an agricultural film body (multifilm) covering a cocoon.
[0002]
[Prior art]
In a transplanting machine for planting seedlings on a cocoon covered with an agricultural film body, a punch for moving up and down is brought into contact with the agricultural film body to form a hole for planting seedlings (planting holes), which is arranged on the rear side. The planting part is designed to plant seedlings in the pods according to the planting holes.
As the perforating device, a perforator heated by a gas burner or a heating wire is brought into contact with the agricultural film body so as to be melted by heat to form a hole (heater type), or a perforator equipped with a cutter on the lower surface is used for agriculture. 2. Description of the Related Art Conventionally, a device that makes a hole by making contact with a film body and cutting it (cutter type) is known.
[0003]
[Problems to be solved by the invention]
In the transplanter as described above, the speed of the traveling body can be changed in a plurality of stages in order to change the strain and transplanting speed depending on the kind of seedling, the conditions of the field, and the like.
However, when the traveling speed of the traveling body is high, the traveling amount of the traveling body increases while the perforator is in contact with the agricultural film body, so that the perforator is dragged forward while being in contact with the agricultural film body. There was a case.
In this case, in the conventional heater-type punch, the planting hole becomes longer in the front and rear, the heat insulation effect by the agricultural membrane body is impaired, and weeds are likely to grow. In the cutter-type punch, the agricultural membrane body is on the front side. There is a drawback that it is easy to cause a positional shift between the planting hole and the seedling.
[0004]
This invention makes it a subject to form a planting hole appropriately with a punch, even if it is a case where the advancing speed of a traveling body is quick in view of such a situation.
[0005]
[Means for Solving the Problems]
The present invention takes the following technical means in order to solve the above problems.
That is, according to the present invention, a planting hole is formed by the punching device 22 in the agricultural film body F that covers the ridge R while traveling along the ridge R by the traveling body 2, and the ridge is aligned with the planting hole. In the transplanting machine that planted seedlings in R,
The perforating device 22 includes a perforator 33 that moves up and down and contacts the agricultural membrane F to form a planting hole when the punching device 22 is lowered, and the perforator 33 is in contact with the agricultural membrane F. A stopper 47 is provided that swings backward by the traveling body 2 through the shaft 45 and restricts swinging of the perforator 33 from the downward posture depending on its own weight to the front in the traveling direction. It is characterized by having.
[0006]
By adopting such a configuration, even when the traveling speed of the traveling body 2 is high, that is, when the traveling amount of the traveling body 2 is large while the punch 33 is in contact with the agricultural film body F, The punching device 33 swings backward while being in contact with the agricultural film body F without being dragged, and the relative movement of the contact portion with respect to the agricultural film body F is reduced. For this reason, the planting hole becomes long in the front and rear directions and hardly pulls the agricultural film F, so that the planting hole can be properly formed.
In the above-described configuration, there is a lifting mechanism 34 that lifts and lowers the punch 33, and this lifting device 34 is pivoted on a movable frame 26 that is pivotally supported on the first PTO shaft 14 of the transmission case of the traveling body 2. A pair of upper and lower link members 38 supported, an attachment member 39 pivotally supported by the link member 38 to which the punch 33 is attached, and a cam 37 for swinging each link member 38 are provided. The cam 37 is preferably disposed between a pair of upper and lower link members 38 .
[0007]
Moreover, it is preferable that the punch 33 is attached so that height adjustment is possible.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 3 shows a transplanter 1 for transplanting a vegetable seedling N into a cocoon. This transplanter 1 is a walking type having a transplanter 3 and a steering handle 4 behind a traveling body 2, and the traveling body 2 uses the cocoon R The soil block seedling N is automatically planted at a predetermined interval on the heel R while running along the longitudinal direction across the ridge.
In the following description, the traveling direction of the transplanter 1 is the front-rear direction, and the lateral direction orthogonal to the traveling direction is the left-right direction.
[0009]
The traveling body 2 is provided with a gantry 7 projecting forward from the front of the mission case 6, and an engine or other device is mounted on the gantry 7 and covered with a cover 9. A pair of left and right front wheel arms 11 are provided via a left and right shaft 10, and a front wheel 12 is rotatably supported at the lower end of each front wheel arm 11.
Left and right wheel transmission shafts 13 project from the left and right sides of the transmission case 6, a transmission case 16 is connected to the left and right wheel transmission shafts, and a rear wheel 17 is provided at the lower end of the transmission case 16.
[0010]
The power of the engine is input into the mission case 6, and the first PTO shaft protruding from the wheel transmission shaft 13 and the left and right sides of the transmission case 6 through a power transmission mechanism (transmission mechanism, etc.) in the mission case 6. 14 and the second PTO shaft 15 projecting from the rear, the output from the wheel transmission shaft 13 is transmitted to the rear wheel 17 through the transmission case 16, and the traveling body 2 is driven by the driving of the rear wheel 17. Run.
The transplanting device 3 is provided on a transplanting frame 19 mounted on the rear side of the traveling body 2, a planting device 20 for planting the seedling N in the ridge R, and a seedling supply device for supplying the seedling N to the planting device 20. 21, and a drilling device 22 that forms a planting hole in the agricultural film F in advance at a place where the seedling N is planted, and a covering ring 23 that covers and suppresses the root of the planted seedling N are mainly configured.
[0011]
The transplant frame 19 is provided with a fixed frame 25 having a front portion attached and fixed to the transmission case 6 and a lower side of the fixed frame 25, and a front portion is pivotally supported by the first PTO shaft 14 of the transmission case 6. The seedling supply device 21 is provided on the fixed frame 25, and the steering handle 4 is connected to the rear portion of the fixed frame 25.
The movable frame 26 is provided with a planting device 20, a punching device 22, and a cover ring 23.
[0012]
The seedling supply device 21 includes a seedling placing table 28 and a seedling taking-out device 29, and a seedling tray T in which a large number of pot portions P in which soil block seedlings N are stored is arranged vertically and horizontally on the seedling placing table 28. The soil block seedlings N are taken out one by one from the seedling tray T by the seedling extraction device 29 (the seedling extraction claw 29A) and transferred to the planting device 20.
The planting device 20 moves the planted body 30 up and down by the swing link mechanism 31 and receives the soil block seedling N released from the seedling picking claws 29A when it rises. It is configured to plant the soil block seedling N by piercing it. The left and right sides of the planted seedling N are covered with the soil covering ring 23.
[0013]
A perforation device 22 is disposed on the front side of the planted body 30, and the perforation device 22 forms a planting hole in contact with the agricultural film body F as shown in FIGS. 1 and 2. And a lifting mechanism 34 that moves the punch 33 up and down.
The perforator 33 is composed of a lower main body 33A and an upper mounting bracket 33B, and the main body 33A is of a heater type heated by a gas burner or electric heat, and the lower end thereof is formed on the agricultural film F. By contact, it is melted by heat to form a planting hole. However, the punch 33 may be a cutting type using a cutter or the like.
[0014]
The elevating mechanism 34 includes a left-right drive shaft 36 to which power is transmitted from the first PTO shaft 14 of the transmission case 6 via the transmission mechanism, a cam 37 provided on the drive shaft 36, and a front end to the movable frame 26. A pair of upper and lower link members 38 pivoted and an attachment member 39 pivotally supported at the rear end of the link member 38 are provided, and a punch 33 is detachably attached to the lower portion of the attachment member 39. .
The attachment member 39 includes an upper member 40 pivotally connected to the link member 38 and a lower member 41 fixed to the lower portion of the upper member 40. The lower member 41 has a long hole 40A that is long in the front-rear direction. The lower member 41 is connected through a long hole 40A by a fastener 40B such as a bolt or a nut so that the front-rear position can be adjusted.
[0015]
By adjusting the front-rear position, the front-rear distance from the rear planting device 20 can be set appropriately.
A plurality of upper and lower mounting holes 42, 43 are formed in two rows in the front and rear in the lower part of the lower member 41, and a shaft 45 provided in the mounting bracket 33B is one of the mounting holes 43 in the rear row. The perforator 33 is pivotally supported by the shaft 45 as a fulcrum so as to be swingable back and forth. The mounting holes 42 and 43 are provided in a line up and down.
[0016]
A stopper 47 is attached to one of the mounting holes 42 in the front row. When the punch 33 (main body portion 33A) is in a substantially vertical posture (downward posture), the upper edge of the mounting bracket 33B is the stopper 47. Further forward swinging of the perforator 33 is restricted by abutting against. At this time, the mounting bracket 33B is in a tilted posture that is rearwardly lowered.
The punch 33 has the main body portion 33A facing downward, and the front and rear position Y of the shaft 45 is located on the front side of the center position X. Therefore, the punch 33 has a downward posture due to its own weight, and the shaft 45 The mounting bracket 33B is surely brought into contact with the front stopper 47 and positioned.
[0017]
In the above configuration, when the drive shaft 36 of the elevating mechanism 34 rotates, the cam 37 rotates following this, and the roller 49 provided in the middle of the upper link member 38 rolls following the outer peripheral surface of the cam 37. . Then, when the roller 49 enters the recessed portion 37A formed on the outer peripheral portion of the cam 37, the link member 38 swings downward, and the punch 33 is lowered while moving slightly backward as indicated by the arrow A via the mounting member 39. To do.
Then, when the lower surface of the main body 33A comes into contact with the agricultural film F, a planting hole is formed by heat, and then the roller 49 is pulled out from the recessed portion 37A by the rotation of the cam 37, so that the link member 38 swings upward. As a result, the perforator 33 is lifted away from the ridge R.
[0018]
Then, the planting body 30 descend | falls according to the said planting hole, and plantes the seedling N, piercing the ridge R.
When the punch 33 is lowered as described above, it contacts the agricultural film F to form a planting hole. However, when the traveling body 2 has a high traveling speed, it travels while it is in contact with the agricultural film F. The amount of progress of the body 2 increases, and the body 2 tends to be dragged forward by the advance of the traveling body 2 while being in contact with the agricultural film body F.
However, in this embodiment, since the punch 33 is supported by the shaft 45 so as to be able to swing back and forth, the bottom surface of the main body 33A is swung backward as shown by an arrow B while being in contact with the agricultural film F. (Swing motion), so that the planting hole is prevented from becoming long in the front and back, and it is possible to form the minimum planting hole necessary for seedling planting Become. Therefore, the heat insulation effect by the agricultural film body F is not impaired, and weeds are prevented from flaking from the pods exposed from the planting holes.
[0019]
Even when the perforator 33 is of a cutter type, the agricultural film F is less likely to be pulled forward by swinging backward as described above.
The punch 33 can be adjusted in height by selecting and attaching any of the plurality of attachment holes 43 formed in the attachment member 39, and the stopper 47 can also be selected by selecting any of the attachment holes 42. The height can be adjusted according to the height.
Further, it is possible to attach other devices with bolts or the like using the front and rear mounting holes 42 and 43. For example, in the case of a cocoon in which the agricultural film F is not laid, the punch 33 can be removed, and a tool or the like that forms a recessed portion for transplantation can be attached to the cocoon. In this case, the planting device 20 is omitted, and the soil block seedling N taken out from the seedling tray T by the seedling extraction claws 29A in the seedling supply device 21 is transferred as it is to the vicinity of the upper surface of the cocoon R, It can be set as the structure which discharge | releases the seedling N to the formed recessed part for transplant.
[0020]
The present invention is not limited to the embodiment described above, and can be appropriately changed in design.
For example, the attachment holes 42 and 43 for attaching the punch 33 and the stopper 47 can be elongated holes that are long in the vertical direction, and the lifting mechanism 34 lifts and lowers the punch 33 through the vertical swing of the link member 38. It is not limited to the structure to be made.
In the above embodiment, the punch 33 is supported by the shaft 45 so as to be swingable. However, a flexible member (rubber, spring, etc.) is provided between the punch 33 and the lifting mechanism 34. By interposing, the punch 33 can be configured to be swingable through elastic deformation of the member.
[0021]
Further, an urging member such as a spring that urges the punch 33 in a direction in which the perforator 33 is in a downward posture may be provided.
The present invention can be applied not only to a walking type transplanter but also to a riding type transplanter, and can also be applied to a multi-row transplanter having a plurality of transplanters on the left and right.
[0022]
【The invention's effect】
As described above in detail, according to the present invention, a planting hole of an appropriate size can be formed by the punching device.
[Brief description of the drawings]
FIG. 1 is a side view of a punching device according to an embodiment of the present invention.
FIG. 2 is a rear view of the same.
FIG. 3 is an overall side view of the transplanter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 transplanting machine 2 traveling body 22 punching apparatus 33 punching machine 45 shaft 47 stopper F agricultural film body R

Claims (3)

A planting hole is formed by a drilling device (22) on the agricultural film body (F) that covers the basket (R) while traveling along the basket (R) by the traveling body (2), and the planting hole In a transplanting machine in which seedlings are planted in the cocoon (R) in accordance with
The perforating device (22) includes a perforator (33) that moves up and down and contacts the agricultural membrane (F) to form a planting hole when the perforating device (22) is lowered. It is provided to swing backward by the traveling body (2) through the shaft (45) when it contacts the film body (F) .
A transplanter provided with a stopper (47) for restricting swinging of the perforator (33) from a downward posture suspended by its own weight to the front in the traveling direction The elevating mechanism (34) for elevating and lowering the punch (33) is pivotally supported by the first PTO shaft (14) of the transmission case (2) of the traveling body (2). A pair of upper and lower link members (38) pivotally supported by the movable frame (26), an attachment member (39) pivotally supported by the link member (38) and to which the punch (33) is attached; A cam (37) for swinging each link member (38),
The transplanter according to claim 1, wherein the cam (37) is disposed between a pair of upper and lower link members (38). The transplanter according to claim 1 or 2, characterized in that the punch (33) is provided so as to be adjustable in height .

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