JP4465763B2 - Seedling planting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling planting machine for transplanting vegetable seedlings.
[0002]
[Problems to be solved by the invention]
When seedlings are transplanted into a field scene using a seedling planting device, the seedling planting device needs to be maintained at a predetermined height with respect to the field scene in order to properly maintain the seedling planting depth. . If the traveling device is in the form of a crawler, the ground contact surface of the traveling propulsion body, which is a crawler, can be taken long in the front-rear direction, so that traveling slip is reduced and the planting strains of seedlings can be properly maintained. When the ground contact surface of the propulsion body becomes long, the front-rear posture of the aircraft is likely to change abruptly due to the unevenness of the ground, and there is a risk that seedling planting by the seedling planting device will not be stable.
Then, this invention makes it a subject to plant a seedling correctly and stably. It is another object of the present invention to perform seedling planting work in a field where a multi-film is coated on the upper surface of the cocoon.
[0003]
[Means for Solving the Problems]
According to the first aspect of the present invention, drive shafts 9 are provided on the left and right sides of the front part of the vehicle body 4, and a sprocket 13 provided on the drive shaft 9 and a crawler frame 14 that is supported around the drive shaft 9 and can swing up and down. A pair of left and right crawlers 2 spanned between the rolling wheels 15 provided at the rear end is provided, a pitching shaft 8 is provided on the left and right sides of the vehicle body 4, and the auxiliary wheels 10 are supported on both left and right sides of the pitching shaft 8. The arm 23 is provided so as to be swingable up and down, the support arm 23 and the crawler frame 14 are connected by a link rod 24, and the auxiliary wheel 10 is moved up and down by the vertical movement of the crawler 2 so that the vehicle body 4 is parallel. The seedling tank 5 that contains the seedlings and reciprocates left and right, the seedling planting device 7 for planting the seedlings contained in the seedling tank 5 on the soil surface, and the ridge upper surface A on which the seedlings are planted Repression wheel 1 to repress both sides The NaeUe frame 22 equipped with the in the rear of the vehicle body 4 is provided swingably pitching axis 8 around which is provided over the left and right, and JikuSo the axis 34 of the suppression ring 11 in the opposite V-shape in front view It is configured to be rotatable, and the configuration is a seedling planting machine in which a circumferential surface is formed into a conical shape to be a pressure-reducing surface, and a cover 35 made of an elastic body is provided on the inner facing surface side.
[0004]
The invention according to claim 2 is a drilling tool 36 for forming a planting hole in a multi-film covering the ridge upper surface A in conjunction with the operation of the seedling planting claw 6 of the seedling planting device 7 at a certain timing and the hole. The seedling transplanter according to claim 1, wherein a presser arm 37 having a roll 38 is provided at a distal end thereof that moves up and down together with the lighter 36 and presses and fixes the upper surface of the multi-film punched by the holeer 36 when the lighter moves downward. The configuration is as follows.
[0005]
【The invention's effect】
According to the first aspect of the present invention, drive shafts 9 are provided on the left and right sides of the front part of the vehicle body 4, and a sprocket 13 provided on the drive shaft 9 and a crawler frame 14 that is supported around the drive shaft 9 and can swing up and down. A pair of left and right crawlers 2 spanned between the rolling wheels 15 provided at the rear end is provided, a pitching shaft 8 is provided on the left and right sides of the vehicle body 4, and the auxiliary wheels 10 are supported on both left and right sides of the pitching shaft 8. The arm 23 is provided so as to be swingable up and down, the support arm 23 and the crawler frame 14 are connected by a link rod 24, and the auxiliary wheel 10 is moved up and down by the vertical movement of the crawler 2 so that the vehicle body 4 is parallel. The seedling tank 5 that contains the seedlings and reciprocates left and right, the seedling planting device 7 for planting the seedlings contained in the seedling tank 5 on the soil surface, and the ridge upper surface A on which the seedlings are planted Repression wheel 1 to repress both sides The NaeUe frame 22 equipped with, since there is provided swingably pitching axis 8 around which is provided over the left and right at the rear of the vehicle body 4, seedling planting machine, the drive shaft is provided on both left and right sides of the vehicle body 4 front 9 Since the vehicle travels by driving a pair of left and right crawlers 2 spanned between the sprocket 13 and the roller 15 provided at the rear end of the crawler frame 14 supported around the drive shaft 9 and freely swingable, It is possible to make the treading pressure drive smooth and to drive in a stable posture with less slip, and even if the forward / backward inclined posture of the aircraft changes suddenly due to the unevenness of the ground, the seedling tank 5 and the seedling planting device 7 and the pressure-reducing wheel 11 are attached to the vehicle body 4 so as to follow the vehicle body 4 by swinging up and down around the pitching axis 8 so that the seedling can be planted accurately and stably.
[0006]
Further, a pitching shaft 8 is provided on the left and right sides of the rear part of the vehicle body 4, and support arms 23 of the auxiliary wheels 10 are provided on both left and right sides of the pitching shaft 8 so as to be swingable up and down. Are connected by a link rod 24, and the auxiliary wheel 10 is moved up and down by the vertical movement of the crawler 2 so that the vehicle body 4 is raised and lowered in a parallel posture. Therefore, the left and right crawlers 2 and the auxiliary wheel 10 are 4 is moved up and down in synchronism with the vehicle 4, so that the front / rear tilt posture of the vehicle body 4 is properly maintained regardless of the change in the vehicle height. Planting can be stabilized.
Further, the pressure-reducing wheel 11 is configured to be rotatable by being mounted on a shaft 34 in a reverse C shape when viewed from the front, and the circumferential surface is formed into a conical shape as a pressure-reducing surface, and is formed of an elastic body on the inner facing surface side. Since the cover 35 is provided, the pressure-reducing wheel 11 can repress both sides of the heel surface A on which the seedling is planted while rotating by ground resistance, and stabilizes the seedling-planting posture. And since it is comprised so that a soil and a foreign material may not adhere and accumulate on the inner peripheral surface of this suppression wheel 11, even if there is soil which is going to be scooped into an inner peripheral surface by the suppression effect of the suppression wheel 11, this It is difficult to adhere due to the elasticity of the cover 35, and an increase in the weight of the pressure reducing wheel 11 can be prevented to maintain a smooth pressure suppressing effect.
[0007]
The invention according to claim 2 is a drilling tool 36 for forming a planting hole in a multi-film covering the ridge upper surface A in conjunction with the operation of the seedling planting claw 6 of the seedling planting device 7 at a certain timing and the hole. Since the presser arm 37 having the roll 38 is provided at the tip which presses and fixes the upper surface of the multi-film punched by the punching tool 36 when moving up and down together with the lighting tool 36, the presser arm 37 is accommodated in the seedling tank 5. The seedling is planted on the heel surface A by the seedling planting claws 6 of the seedling planting device 7. At this time, the drilling tool 36 is pierced from the upper surface of the multi-film into the heel surface A to form a planting hole, and seedling planting by the seedling planting claws 6 is performed. A presser arm 37 having a roll 38 at the tip presses and fixes the upper surface of the multifilm punched by the punching tool 36 and presses the upper surface of the multifilm.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention can be used as a seedling planting machine for mainly transplanting vegetable seedlings by attaching a seedling planting device to a vehicle body in the form of a hand tractor. Vegetable seedlings are often germinated and raised as seedlings with seedbeds, and seedlings grown using pot-type seedling devices can be supplied to a seedling tank of a seedling planting device and planted. it can. In addition, the use of the seedling planting machine can be effectively used in seedling planting work, especially when the top surface of the cocoon is covered with a multi-film.
[0009]
A seedling tank that accommodates and feeds seedlings to a car body in the form of a hand tractor with an engine and crawler at the front and a steering handle at the rear, and seedling planting nails that plant the fed seedlings on the soil surface Is provided so as to be swingable around the pitching axis, and the running is performed in a smooth and stable posture, so that the seedling planting device can easily follow the height change of the cocoon.
[0010]
The crawler is provided such that the rear part is swingable up and down around the front drive shaft at both the left and right sides of the vehicle body, and an auxiliary wheel that is rocked up and down with the crawler is provided at the rear part of the vehicle body. Regardless of the height change, maintain a posture that is almost parallel to the vehicle body at all times, and stabilize the seedling planting posture by the seedling planting device.
[0011]
In the rear part of the seedling planting device, there is provided a suppression wheel that suppresses the seedling planting side, and a suppression wheel that suppresses the seedling planting soil surface planted by the seedling planting device is attached to the vehicle body together with this seedling planting device. By swinging up and down, it is possible to perform accurate suppression regardless of changes in vehicle height and to support the seedling planting device.
[0012]
【Example】
An embodiment of the present invention will be described with reference to the drawings. The vehicle body 4 has an engine 1 mounted on the front, a pair of left and right crawlers 2 are disposed, and a hand tractor having a steering handle 3 at the rear end of the rear handle frame 12 is employed. A seedling planting device 7 having a seedling tank 5 and a seedling planting claw 6 is mounted on the rear portion of the vehicle body 4 so as to swing up and down around the pitching shaft 8.
[0013]
Drive shafts 9 are provided on the left and right sides of the front portion of the vehicle body 4, and a sprocket 13 of the drive shaft 9 and a crawler frame 14 supported around the drive shaft 9 and capable of swinging up and down are rotated at the rear end. The crawler 2 made of rubber is stretched between the drive shaft 9 and the drive shaft 9 so as to be driven.
[0014]
Between the vehicle body 4 and the left and right crawler frames 14, a pitching bar 17 that is moved back and forth by the expansion and contraction of the hydraulic cylinder 16, both left and right ends of the pitching bar 17, and a frame arm 18 at the base of the crawler frame 14 are provided. A link rod 19 for connecting the two is provided. The vehicle height can be changed by vertically swinging the left and right crawlers 2 around the drive shaft 9 by the expansion and contraction of the hydraulic cylinder 16.
[0015]
The expansion and contraction of the hydraulic cylinder 16 can be performed by operating the elevating lever 20 of the steering handle 3, but can also be automatically performed by the vertical movement of the ground sensor 21 provided at the lower part of the vehicle body 4. In the case of this grounding sensor 21, even if this heel height H changes while detecting the height H between the heel surface A and the groove surface B for planting seedlings, The height is controlled so as to keep the height position constant.
[0016]
A pitching shaft 8 is provided on the left and right of the rear portion of the vehicle body 4. A seedling frame 22 that also serves as a transmission case for the seedling planting device 7 is swingable up and down around the pitching shaft 8, and the rear portion is at the bottom. It is provided at the center of gravity of dynamic rotation. In addition, support arms 23 of the auxiliary wheel 10 are provided on both the left and right sides so as to be swingable up and down. The support arm 23 and the crawler frame 14 are connected by a link rod 24, and the auxiliary wheel 10 is moved up and down by the vertical movement of the crawler 2, so that the vehicle body 4 is moved up and down in a parallel posture. The crawler 2 and the auxiliary wheel 10 are arranged so as to step on the groove surfaces B on both sides of the flange surface A.
[0017]
The seedling planting device 7 has an input shaft 25 at the front part of the seedling planting frame 22, and can transmit power by connecting a power take-off shaft 26 from the front part of the vehicle body 4. At the rear of the seedling planting frame 22, a seedling planting claw 6 for planting seedlings on the heel surface A is actuated while holding the seedbed and drawing an elliptical planting locus line C in a side view. Reference numeral 27 denotes a seedling planting case for operating the seedling planting claws 6 and has a gear mechanism inside.
[0018]
The seedling tank 5 is provided along the upper part of the vehicle body 4, is supported by a part of the seedling planting frame 22, is attached to a slide bar 28 that reciprocates left and right, and reciprocates left and right with respect to the seedling nail 6. Is done. Reference numeral 29 denotes a guide rail that supports and guides the front portion of the seedling tank 5 and is attached to the seedling planting frame 22 side. A feeding belt 30 at the bottom of the seedling tank 5 can intermittently feed the placed seedlings. 31 is a seedling stop bar provided at the seedling take-out port where the seedling planting nail 6 on the rear end of the seedling tank 5 acts, and the seedling to be fed is locked at a fixed position to accurately hold the seedling by the seedling planting nail 6. Is what you want to do.
[0019]
Reference numeral 36 denotes a drilling tool that forms a planting hole having a predetermined depth in the dredged soil surface A at the planting position by the seedling planting claws 6. For this reason, it is interlocked | configured so that it may operate | move based on the action | operation of the seedling planting nail | claw 6 and fixed timing. Reference numeral 37 denotes a presser arm, which has a roll 38 at the tip, and can hold and fix the upper surface of the multi-film punched by the punching tool 36. It moves up and down together with the punch 36 and can press the upper surface of the multi-film when moving down.
[0020]
A support arm 32 having a pair of left and right pressure-reducing wheels 11 is provided at the rear of such a seedling planting frame 22, and the rear end is suspended from the handle frame 12 via a spring 33. . The pressure-reducing wheel 11 is mounted on a shaft 34 in a reverse C shape when viewed from the front, and is rotatable, and can suppress both sides of the dredged soil surface A on which seedlings are planted while rotating by ground resistance. It stabilizes the seedling placement posture. The seedling frame 22 can be rotated back and forth around the pitching axis 8 within a certain rotation angle range. However, when rotating backward, the seedling frame 22 is rotated so as to be pressed against the upper surface A along with the pressure-reducing wheel 11 against the spring 33. To do. When the pressure-reducing wheel 11 tries to float from the heel surface A during forward rotation, the spring 33 is extended by the weight of the pressure-reducing wheel 11 and the pressure-reducing state of the pressure-reducing wheel 11 is maintained for a long time.
[0021]
The pressure-reducing wheel 11 has a circumferential surface formed in a conical shape to be a pressure-reducing surface. A cover 35 made of an elastic material such as rubber is provided on the inner facing surface side of the pressure wheel 11 so that soil and foreign matter do not adhere to and accumulate on the inner peripheral surface of the pressure wheel 11. Even if there is soil that is about to be scooped into the inner peripheral surface by the pressure-reducing action of the pressure-reducing wheel 11, it is difficult to adhere due to the elasticity of the cover 35, and the weight of the pressure-reducing wheel 11 is prevented from increasing, and a smooth pressure-reducing action is achieved. Can be maintained.
[0022]
Reference numeral 39 denotes an elevating lever that can raise the pressure-reducing wheel 11 with respect to the seedling frame 22 to a non-pressure-reduced posture, or can be lowered to switch to a pressure-reduced posture.
In the seedling planting work in the field where the multi-film is coated on the ridge upper surface A, seedling planting by the seedling planting device 7 is performed while the crawler 2 and the auxiliary wheel 10 of the vehicle body 4 are stepped on the groove surface B. Since the groove surface B receives the driving treading pressure of the crawler 2, the running is smooth, and even if treading on both side edges of the laid multifilm, it is difficult to cause slipping, and the multifilm drag and breakage are reduced. be able to. In addition, a change in the driving reaction force during driving of the crawler 2 can be reduced, and the vertical swinging of the vehicle body 4 caused thereby can be reduced, so that stable running can be performed.
[0023]
When the heel height H changes, the left and right crawlers 2 are swung up and down by the detection of the ground sensor 21, and the height on the heel surface A of the vehicle body 4 is controlled to be kept constant. At this time, the auxiliary wheel 10 by the support arm 23 is interlocked with the rear part of the vehicle body 4 and is swung up and down, and the vehicle body 4 is moved up and down in a substantially parallel posture. For this reason, the back-and-forth inclination of the seedling planting device 7 connected to the rear portion of the vehicle body 4 so as to freely swing up and down around the pitching shaft 8 can be maintained constant, and a stable seedling planting posture can be maintained.
[0024]
The seedlings stored in the seedling tank 5 are planted on the dredged soil surface A by the action of the seedling planting claws 6. At this time, the drilling tool 36 is pierced from the upper surface of the multi-film into the heel surface A to form a planting hole, and seedling planting by the seedling planting claws 6 is performed. Such seedling planting action by the seedling planting nail 6 and the punch 36 is such that even if the heel height H changes, the height change on the heel surface A of the vehicle body 4 is small, and the seedling planting device 7 Since it can be quickly rotated and followed around the pitching axis 8, it is possible to perform stable seedling planting with a fixed position on the multi-film surface.
[0025]
Moreover, in the field where the multi-film is coated on the ridge upper surface A, the multi-film is filled at predetermined intervals on the groove surface B so that the multi-film is not blown by wind or the like. 2 to shorten the curvature of the ground contact surface in the front-rear direction by making the ground contact surface in the front-rear direction longer than that of the wheel including the front side portion of the wheel 15 (close to a straight line), When the crawler 2 travels on the embankment, the front / rear inclination posture of the vehicle body 4 is likely to change rapidly. However, even if the crawler 2 travels on the embankment and the vehicle body 4 is tilted back and forth rapidly, the seedling planting device 7 can swing up and down and the pressure-reducing wheel 11 is grounded. Therefore, the seedling planting device can swing up and down quickly to perform stable seedling planting.
[0026]
In addition, since such a seedling planting device 7 supports the rear part on the heel surface A with the pressure-reducing wheel 11, it is swung up and down by this pressure-reducing state. For this reason, only the position of the seedling planting nail 6 is not greatly shaken locally, and a stable seedling planting operation can be maintained.
[Brief description of the drawings]
FIG. 1 is a side view of a seedling planting machine.
FIG. 2 is a plan view thereof.
FIG. 3 is an enlarged plan view of a part thereof.
FIG. 4 is a front view of a suppression wheel portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Engine 2 Crawler 3 Steering handle 4 Car body 5 Seedling tank 6 Seedling claw 7 Seedling planting device 8 Pitching shaft 9 Drive shaft 10 Auxiliary wheel 11 Pressure reducing wheel 13 Sprocket 14 Crawler frame 15 Rolling wheel
22 Seedling frame 23 Support arm 24 Link rod 34 Shaft 35 Cover 36 Drilling tool 37 Presser arm 38 Roll A 畝 Upper surface

Claims (2)

A drive shaft (9) is provided on both the left and right sides of the front portion of the vehicle body (4), and a sprocket (13) provided on the drive shaft (9) and a crawler frame that is supported around the drive shaft (9) and can swing up and down. (14) A pair of left and right crawlers (2) spanned between the wheel (15) provided at the rear end is provided, and a pitching shaft (8) is provided at the rear of the vehicle body (4) on the left and right. Support arms (23) of the auxiliary wheel (10) are provided on the left and right sides of (8) so as to be swingable up and down, and the support arm (23) and the crawler frame (14) are connected by a link rod (24). Then, the auxiliary wheel (10) is moved up and down by the vertical movement of the crawler (2) to raise and lower the vehicle body (4) in a parallel posture, and the seedling tank (5 ) And seedlings planted in the seedling tank (5) on the soil surface Device (7) and seedlings NaeUe frame fitted with suppression ring (11) to crush the sides of the planting was allowed upper surface (A) (22), provided over the left and right at the rear of the vehicle body (4) pitching It is provided so as to be swingable around the shaft (8), and the pressure-reducing wheel (11) is rotatably mounted by mounting it on the shaft (34) in a reverse C shape when viewed from the front, and the circumferential surface is formed in a conical shape. A seedling planting machine, characterized in that a pressure reducing surface is provided and a cover (35) made of an elastic body is provided on the inner facing surface side.   A drilling tool (36) for forming a planting hole in the multi-film covering the upper surface (A) in conjunction with the operation of the seedling planting claw (6) of the seedling planting device (7) and the drilling The presser arm (37) having a roll (38) is provided at the tip for pressing and fixing the upper surface of the multi-film punched by the punching tool (36) when moving downward together with the tool (36). The seedling transplanter according to claim 1, wherein

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