JP2581279Y2 - Transplanter for fixed onion seedling transplantation - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] This idea is to use the planting seedlings of green onions,
The present invention relates to a transplanter that is planted at the bottom of a constant planting groove formed in a main field.

Conventionally, cultivation of long onions is performed by planting seedlings grown for 90 to 120 days using a width of 20 to 30 cm and a depth of 15 to 2 days.
The plants are planted one by one at intervals of about 2.5 to 3 cm along the shaded side wall at the bottom of the planting groove made about 0 cm, and the planting work is almost impossible because the planting interval is very narrow. It was done manually. On the other hand, recently, a proposal for mechanical transplantation has been made, and a set of seedlings of onion are pinched one by one at a predetermined interval between a pair of rubber discs and rotated, and the seedlings are released at the lowest position and planted at the bottom of the groove. That is being done. In Japanese Utility Model Laid-Open Publication No. 3-76417,
By placing the seedlings for constant planting one by one on a supply conveyor for supplying seedlings to the planting rotating disk, the seedlings are supplied to the planting rotating disk and planted at the groove bottom.
In some cases, guide wheels are provided at the front and rear portions of the implanter so as to be in contact with either the left or right side wall of the groove so that the groove can be easily moved straight.

[0003]

[Problems to be Solved by the Invention] In this way, the transplanting of the onion fixed seedling is to plant the seeds at a very short interval on the bottom of the groves formed in the field, and it is extremely difficult to perform this manually. Bending the waist and planting it in the groove bottom is a difficult task. On the other hand, in order to eliminate such difficult work, in planting with a transplanting machine, work is carried out by placing a traveling part constituted by a crawler or a wheel in a groove together with a planting part, but at this time, traveling in a narrow groove, In order to maintain the straightness, the guides provided at the front and rear of the aircraft are to be brought into contact with the left and right side walls, or the side walls are softer at the upper part and harder at the lower part, ensuring the straightness of the transplanter The more the groove guide is made to contact and guide the lower part of the side wall, the more effective it becomes. Therefore , as described in Japanese Utility Model Application Laid-Open No. 3-76417, the rotating body is brought into contact with the lower end of the groove, or as a guide plate capable of coming into contact with a wide surface of the side wall to guide the side wall while preventing collapse of the side wall. However, since these groove guides are of a fixed type, when the depth of the groove changes due to fluctuations in the depth of the groove or adjustment of the planting depth, the groove guide ring that tries to guide the lower part of the side wall is used. As a result, the vertical movement of the body makes contact with the groove bottom, hinders the travel of the transplanter, and makes it impossible to guide. In addition, if the guide wheel is guided at the upper part of the groove, the soft side wall may be collapsed or bite, and the guide wheel may fall out of the groove due to a change in the groove depth.

[0004]

Means for Solving the Problems As a result of the inventor's intense research on the above-mentioned groove guide in the mechanical transplantation of the onion fixed planting seedling into the groove bottom, the inventor found that the front running guide provided at the front of the transplanter was a constant planting groove. The diameter was slightly smaller than the width of the groove, a ring having an appropriate thickness, or a plate-like body having a contact surface with both side walls of the planting groove without forming a ring, and this was used for the transplanting machine frame. The link is connected via a parallelogram link mechanism, and a gauge wheel is provided on the parallelogram link mechanism to be in contact with the bottom of the groove. From a constant height to a constant posture and always guide the groove side wall at the same height , so that it does not come into contact with the groove bottom or jump out to the groove upper surface and the guide does not come off. It was done. The transplanting machine for transplanting green onions according to the present invention has a pair of left and right running wheels, which are provided in a transplanting machine frame and receive the driving of an engine via a transmission (mission), to form a pair of left and right running wheels in the field. An interval between the wheels that allows the vehicle to run across the groove is provided, and the device is provided so as to be vertically movable with respect to the machine frame. At the time of planting, drop the front running guide provided on the machine frame and the gauge wheel, soil cultivator, planting device, and repressing wheel into the settling groove formed in this field, and run the running wheel across the settling groove. The planting is performed by running, and at the end of the constant planting groove, the front running guide and gauge wheel, planting device, pressure reduction wheel,
Alternatively, the cultivator is pulled up from the ditch to easily perform the recirculation work to the next ditch.

[0005] The present invention relates to raising the machine frame with respect to the traveling wheels.
Link mechanism that pulls up parallelogram link mechanism according to
Can be further provided, and a pair of
The outer surface of each ring is spherical, and the spherical surface is left and right
It can be configured to contact the side wall.

[0006]

The present invention is based on the idea that, when planting seedlings with long onions in the settling grooves formed in this field, the gauge wheel rolls on the settling groove bottom and moves up and down according to the height of the groove bottom. The vertical movement is transmitted to the front running guide via the parallelogram link mechanism , and the front running guide also moves up and down in a fixed posture . Therefore, the front running guide has a fixed height and a fixed posture from the groove bottom.
To contact the groove side wall and stably guide the machine frame along the constant planting groove. In addition, when the machine frame is raised by the lifting device with respect to the traveling wheel, the gauge wheel and the front traveling guide are lifted up from the fixed planting groove together with the planting device, the pressure-reducing wheel, or the soil cultivator, and easily moved to the next groove. Circular work can be performed.

[0007] In addition, the parallelogram link mechanism pulling up
If an additional link mechanism is provided,
When pulling up, the link mechanism and the front traveling guide
Pull the gauge wheel into the machine frame,
Help escape.

[0008] Furthermore , the outer surface of each of the pair of compression wheels
And make the spherical surface contact the left and right side walls.
In this case, a special rear running guide is not required.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show the entirety of the transplanter according to the present invention.
FIG. 3 is a side view showing a part of the transplanter, and FIG.
Front view showing a part of the transplanter, and FIG. 5 shows a part of the present transplanter.
FIGS. 1, 3 and 4 show a state at the time of planting.
FIG. 2 shows a state in which the body frame has been lifted, and when the aircraft circulates.
Is shown. In these figures, reference numeral 1 denotes an airframe frame, on which an engine 2 is mounted and fixed at a front end portion, and a transmission (transmission) 3 is fixedly mounted on the frame 1 below a rear portion of the engine 2.
The output shaft 4 of the mission 3 has a drive pulley 5
And a chain 8 is stretched between the pulley 7 provided on the traveling wheel rotation shaft 6 and the traveling wheel 9 provided at the tip of the traveling wheel rotation shaft 6. The distance between the left and right running wheels 9, 9 is
The width of the output shaft 4 of the mission 3 is set to correspond to the width so as to sufficiently straddle the fixed planting groove 10 formed in the main field. Numeral 11 denotes a seedling stand fixed to the machine frame 1 and is bent in an inverted L-shape near the center. Have been.

Reference numeral 13 denotes a planting holder mounting plate, around which planting holders 14 are mounted at predetermined intervals, and which is supported by a mounting shaft 15 provided on the machine frame 1. Then, the rotation of the planting holder 14 is performed by the continuous paper tube collecting pot body seedling 12 on the seedling stand 11.
This is performed by an interlocking mechanism (not shown) so as to interlock with the progress and stop of each of the above, and the planting holder 14 plants each of the paper tube pot body seedlings 12. Reference numeral 16 denotes a cultivator mounted on a mounting rod 16 'fixed to the machine frame 1 and provided in front of the planting holder 14, and collecting the surrounding soil at the bottom of the groove with the progress of the machine body while the central portion of the bottom of the groove. Small convex row 1
7 is formed.

Reference numeral 18 denotes a compression wheel composed of a pair of left and right sides.
The pressure-reducing wheel rotating shaft 18 ′ provided on the support member 19 is rotatably supported by a shaft. The pair of left and right compression wheels 18 are shown in FIG.
As shown, each outer surface is formed in a spherical shape ,
The maximum outer width L-1 is smaller than the width of the planting groove, and the minimum inner width L-2 is to allow a sufficient width for putting soil into the onion planting. The support member 19 of the crushing wheel 18 is rotatably and loosely fitted to a pin 20 provided at a rear portion of the machine frame 1 to make the crushing wheel 18 vertically swingable. Reference numeral 21 denotes a handle, the tip of which is fixed to the machine frame 1, and a lever 22 is provided at the center of the handle 21 to operate the body. Reference numeral 23 denotes a compression wheel support rod whose lower end is fixed to the support member 19, and whose upper end is screwed into an adjustment rod 24 fitted inside, and whose upper end is further locked to the handle 21 so that the adjustment rod 24 can be moved right and left. , The depth of the pressure-reducing wheel 18 is adjusted in conjunction with the expansion and contraction of the adjustment rod 34.

Reference numeral 25 denotes a link mechanism mounting frame,
The upper end is connected to the machine frame 1 on which the mission 3 is fixed.
You. Output shaft cover 44At both endsChain case 45
Are connected to accommodate the chain 8, pulleys 5, 7
You. 26 is the first link mechanism(Parallelogram link mechanism)
The rear link fixed to the front end of the link mechanism mounting frame 25
Frame 27 and the parallel provided on both sides of the rear link frame 27
Links 28 and 29 and parallel links 28 and 29
The parallel link 2 is composed of a girder front link 30.
8, 29, the rear link 27 and the front link 30
The contacts are swingably fitted by pins.
At the front end of the front link 30, a front guide mounting frame 31 is provided.
Fixed at the front end of the front guide mounting frame 31
The lower end of the shaft 32 has a constant height from the groove bottom of the planting groove 10.
The front guide wheel (front traveling guide) 33
It is currently supported. The diameter of the front guide wheel 33 is constant.
10 slightly smaller than the width, and the outer peripheral surface of rotation
Has a flat shape so that it does not sink when it contacts the side wall.
It is better to use

Reference numeral 34 denotes a gauge wheel, which is rotatably supported on a shaft 35 provided at the rear end of the front link 30, and which always rotates in contact with the bottom of the constant planting groove 10 during planting. Since the front link 30 moves up and down according to the height of the bottom, the front link 30 also moves up and down, and the front guide wheel 33 connected to the front link 30 also moves up and down in conjunction with it. And, it always comes into contact with and guides the side wall having a certain height from the groove bottom.

Reference numeral 36 denotes a second link mechanism, which is an output shaft cover 44 through which the transmission output shaft 4 penetrates and is fixed to the machine frame.
A base link 37 having a rear end fixed to the base link 3 and a base link 3
Pull-up link 38 rotatably and loosely connected to the tip of 7
And a first link mechanism 26 and a link mechanism mounting frame 25 . A long hole 39 is provided at the tip of the lifting link 38, and is engaged with a pin 40 provided at the upper end of the front link 30 of the first link mechanism 26 . The operation of the pull-up link 38 is based on the action of raising the first link mechanism 26 with the rise of the body frame 1, and the engagement between the pin 40 of the front link 30 and the elongated hole 39 of the pull-up link 38 determines the length of the hole. When the first link mechanism 26 is lifted to a certain height , the pin 40 and the end of the elongated hole 39 are engaged, and the pull-up link 38 further raises the front link 30 of the first link 26. Front guide wheel 3 disposed at the tip
3 is also raised further, and the lifting link 38 easily moves the front guide wheel 33 and the gauge wheel 34 together with the first link mechanism 26 in conjunction with the vertical movement of the body frame 1.

Reference numeral 41 denotes a hydraulic cylinder fixed to the machine frame 1 below the mission 3. A bracket 43 is provided at the tip of a piston rod 42 of the cylinder 41, and the upper end of the bracket 43 is penetrated by the output shaft 4 of the mission 3. 1 and is connected to the output shaft cover 44 fixedly provided. Output shaft cover 44
A chain case 45 is connected to both ends and houses a chain 8 and pulleys 5 and 7. The operation of the hydraulic cylinder 41 is operated by a lever 22 provided on the handle 21. When the piston rod 42 of the cylinder 41 is fully extended, the traveling wheel rotating shaft 6 is fixed because the traveling wheel 9 is fixed in the field. Mission 3, seedling stand 1
1. The planting holder 14, the compression ring 18 and the like are integrally lifted upward. Then, the first link mechanism 26 is raised together with the machine body frame 1 to raise the guide wheel 33 at the tip.

On the other hand, the base link 37 fixed to the output shaft cover 44 further raises the second link mechanism 36 with the rise of the first link mechanism 26. When the pins 40 of the front link 30 after the first link 26 are engaged, the fitting point of the rear link frame 27 and the parallel links 28 and 29 is used as a starting point.
The front guide wheel 33 and the gauge wheel 34 lifted from the bottom of the planting groove 10 by the raising of the first link mechanism 26 connected to the body frame 1 are actuated by the second link mechanism 36 connected to the output shaft cover 44. It is further raised to a higher position .

[0017] raising height is up to on the surface of the earth from the groove 10, to the extent that they do not catch in time line at the groove 10 in the groove end
The stroke may be any height, and the stroke of the piston rod 42 of the hydraulic cylinder 41 may be appropriately selected according to the stroke. The present invention has the above-described structure, and in operation, first, the machine frame 1 is first lifted up, enters the field with the machine frame 1 lifted up, and the hydraulic cylinder is operated by the lever 22 on the end of the grooved planting groove 10. Activate the piston rod 4
When the frame 2 is contracted, the machine frame 1 sinks downward, and is fixed to the machine frame 1 together with the front guide wheel 25, the cultivator 16, the seedling stand 11, the planting holder 14, and the crushing wheel 18 fixed to the machine frame 1. The first link mechanism 26 whose base end is continuously connected to the output shaft cover 44 from the transmission 3 provided, the front guide wheel 33 continuously connected to the second link mechanism 36, and the gauge wheel 34 are in the groove 10. Will fit in. At this time, the lifting link 30 of the second link mechanism 36 further lowers the front guide wheel 33 having a predetermined groove depth due to the lowering of the first link mechanism 26. Since the union has been released, the front guide wheel 33 is not further lowered.

In the groove 10, a front guide wheel 33 having a slightly smaller diameter than the groove width guides one of the right and left side walls and rotates in contact with a groove bottom provided immediately behind. In conjunction with the vertical movement of 34, the side with a constant groove depth at all times
The rear pressure-reducing wheel 18 guides the spherical outer peripheral surface against both side walls to guide the rear running.
It acts as a guide and also effectively suppresses pressure. The planting holder 14 is for planting the potted seedlings 12 at the tip of the seedling stand 11 in small ridges 17 made by the cultivator 16 in sequence.

This planting is described in JP-A-58-21271.
As shown in JP-A No. 1 ( 1994 ), the planting holder 14 pinches and pulls out the tip-end potted-tube seedlings 12, pulls the row of potted-potted potions arranged in a row with connecting pieces, and pulls out the tip-end potted seedlings 12. At this time, the stopper (not shown) stops the next pot body seedling 12, so that the tip pot body seedling 12 held by the planting holder 14 is held.
Is separated, the planting holder 14 is lowered as it is, and the potting seedlings 12 pinched at the planting position are released and planted, which is convenient because planting can be reliably performed.

When the planting in the planting groove 10 proceeds, the diameter of the front guide wheel 33 is set to a size having only a small gap between the front guide wheel 33 and the side wall of the groove 10, so that the lateral movement of the body is small. It can be straight ahead, and there is a special running
Without providing a line guide , the outer peripheral surface of the pressure-reducing wheel 18 is formed into a spherical shape and is brought into contact with the side wall to be guided. Next, when the planting progresses, when the hydraulic cylinder 41 is actuated to move to the next groove 10 at the end of the groove 10, the machine body frame 1 easily rises, and the front guide wheel 3 provided on the machine frame 1 is raised.
3, the gauge wheel 34, the cultivator 16, the seedling stand 11, the planting holder 14, and the crushing wheel 18 also serving as the rear running guide are all in the groove 1.
Since the vehicle is lifted from the middle position, the vehicle is hardly lifted by human power, and the vehicle can be easily rotated. The traveling of the body in the groove 10 is facilitated by making the diameter of the front guide wheel 33 slightly smaller than the width of the groove 10 so that the front guide wheel 33 abuts on the side wall and corrects the advancement. Although maintained, the outer peripheral surfaces of a pair of rear pressure-reducing wheels 18 are further formed as spherical surfaces and abut against both side walls to improve the straightness.

[0021]

[Effects of the Invention] This invention is based on the fact that the traveling wheels provided at the front of the machine are run on both sides of the settling groove formed in the mainland to plant the seedlings of the onion. Pull down the machine frame with respect to the running wheels, put the front running guide and gauge wheel together with the cultivator, planting device, and pressure reduction wheel fixed to the machine frame in the planting groove, and set the gauge wheel in the constant groove. Ground it on the bottom and this
Move the gauge wheel up and down through the parallelogram link mechanism to the front
Because to tell the traveling guide, front running guide is moved up and down in conjunction with gauge wheels, a constant height from the groove bottom one
It comes into contact with the groove side wall in a fixed posture, and guides the machine frame stably along the fixed groove. In addition, when the machine frame is raised by the lifting device with respect to the traveling wheel, the gauge wheel and the front traveling guide are lifted up from the fixed planting groove together with the cultivator, the planting device, and the pressure-reducing wheel, and are easily turned to the next groove. Line work can be done.

[Brief description of the drawings]

1 is a diagram showing a state when planting a side view of the implant device of one embodiment of the invention.

FIG. 2 is a side view of the transplanter according to one embodiment of the present invention , showing a state when the machine frame is pulled up .

FIG. 3 is an enlarged side view showing a front side of the transplanter.
You.

FIG. 4 shows a mounting structure between a front traveling guide and a gauge wheel.
FIG.

FIG. 5 shows an attachment structure between a front traveling guide and a gauge wheel.
FIG.

FIG. 6 is a front view showing the shape of a compression wheel and its mounting structure.
is there.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 machine frame 2 engine 3 mission (transmission) 9 running wheel 10 constant planting groove 12 paper tube collecting pot body seedling 14 planting holder 16 cultivator 18 crushing wheel 25 link mechanism mounting frame 26 first link mechanism (parallelogram link mechanism) ) 33 Front guide wheel (front running guide) 34 Gauge wheel 36 Second link mechanism 41 Hydraulic cylinder

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01C 11/02

Claims (3)

(57) [Scope of request for utility model registration] An engine is mounted on a machine frame provided with a pair of left and right running wheels, and the drive of the engine is transmitted to the running wheels via a transmission. A front running guide for guiding a machine frame along a fixed planting groove, a soil cultivator, a planting device, and a transplanting machine for onion fixed planting provided with a crushing wheel, wherein the pair of left and right running wheels cross the fixed planting groove. Provided at intervals, connected vertically movably to the machine frame, interposed between the traveling wheels and the machine frame is an elevating device that moves the machine frame vertically with respect to the traveling wheels, and the front traveling guide is It is connected to the machine frame via a parallelogram link mechanism, and the link mechanism is provided with a gauge wheel that is in contact with the groove bottom, and the front traveling guide is interlocked with the vertical movement of the gauge wheel. Characteristic transplanter for fixed onion seedling transplantation. 2. The system according to claim 1, wherein the plane is raised in accordance with the rise of the machine frame with respect to the traveling wheels.
A link mechanism that raises the row quadrilateral link mechanism,
The transplanting machine according to claim 1, further comprising: 3. The planting method according to claim 1, wherein a pair of crushing wheels are provided, and the outer surface of each crushing wheel is formed into a spherical shape so that the spherical surface comes into contact with the side wall of the planting groove. Transplant machine.