JPH09224427A - Walking type non-tilled planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walking type non-tilled planting machine of comparatively small type for non-tilled implantation at comparatively hard field. SOLUTION: A trencher 29 forming a ditch 30 for planting work by a planting machine 4 planting-working along with the traveling of a machine body 8 supported by right and left wheels 17 by being rotation-driven is pivotally borne to a mission case 3 fitted on the side of the device body 8 or disposed under an engine 2 fitted on the side of the machine body 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walk-behind no-till planter for planting seedlings in a no-till field.

[0002]

2. Description of the Related Art Conventionally, for the purpose of labor saving and cost reduction of planting work of seedlings, etc., directly in a single operation on a non-tillage field where full plowing, crushing soil, and scraping work are not performed. No-till transplantation for planting seedlings is known. Then, as a machine for performing the no-till transplantation, a groove for planting seedlings is formed in a non-tilled field by a rotating groove tool (grooving claw), and seedlings are planted in the groove. No-till planters are known.

[0003]

[Problems to be Solved by the Invention] Currently, no-tillage planters are
Since no-tillage transplantation was originally performed mainly for the purpose of labor saving and cost reduction as described above, high planting efficiency 6
Only relatively large models for row planting have been developed and commercialized. On the other hand, as a small no-till planter, a conventional walk-behind planter (rice transplanter) is attached to the rotary drive type grooving tool of the conventional no-till planter to make it a relatively small walk-type planter. A method of constructing a no-tillage planting machine has been considered, but it is difficult to give a special weight to the grooving tool because the machine body becomes heavy, etc. When forming a groove for planting with, the grooving tool floats up from the field, the depth of the groove to be grooved is shallower than the setting, the planting depth becomes shallow, and the seedling may be damaged in some cases. There was a problem that it was not possible to put it into practical use.

[0004]

A walk-behind no-till planter according to the present invention for solving the above problems has an engine 2 and a mission case 3 on the side of a machine body 8 supported by left and right wheels 17.
And a planting device 4 for performing planting work along with the traveling of the machine body 8 is provided on the machine body 8 side, and a grooving tool 29 that forms a groove 30 for planting in a non-tillage field that is rotationally driven.
In the one provided by being arranged in front of the planting device 4,
The first feature is that the groove making tool 29 is axially supported by the mission case 3.

The engine 2 and the mission case 3 are provided on the side of the machine body 8 supported by the left and right wheels 17, and the machine body 8 is
The planting device 4 for performing the planting work accompanying the traveling of the plant is provided on the machine body 8 side, and the grooving tool 29 that forms the groove 30 for planting is rotatably driven in the non-tillage field. Of the seedling placing table 9 in which a plurality of sets of seedlings to be planted by the planting device 4 are placed in advance while the grooving tool 29 is provided at the lower position of the engine 2.
The second feature is that the lower end is located on the rear side of the engine 2 and the upper end is inclined toward the upper side of the engine 2 and is provided on the machine body 8 side.

Further, a plurality of grooving tools 29 are provided in the left-right direction,
The plurality of grooving tools 29 and the wheels 17 in the left-right direction are installed so that the wheels 17 and the grooving tools 29 are located between the stumps 33 of the crops that remain in the uncultivated field. Is the third feature.

A fourth feature of the present invention is that the driven wheels 36, which are grounded together with the wheels 17 and support the vehicle body 8 while the vehicle body 8 is traveling, are provided on the front or rear side of the vehicle body 8.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a walking type no-tillage rice transplanter for planting seedlings in a non-tilled field will be described below as an example of the walking type no-tillage planting machine of the present invention with reference to the drawings. 1 to 3 show a left side view, a front view and a plan view. As shown in FIGS. 1 and 2, the bonnet 1 is on the upper side.
A mission case 3 attached to the side of the engine 2 is provided below the engine 2 covered with the engine 2 and a lower frame 6 is provided at the rear end of the mission case 3.
The mission case 3 and the lower frame 6 constitute a machine body frame, and the machine body 8 is constituted by mounting various parts such as a planting mechanism described later on the machine body frame side.

A seedling mount 9 attached to the rear end side of the mission case 3 is provided on the lower frame 6 so as to be inclined forward, and at the rear of the seedling mount 9, an upper end portion is provided. A handle frame 12 having a handle 11 attached to the side is fixedly provided at the rear end of the lower frame 6. On the other hand, drive shafts 13 for traveling are provided so as to project from the mission case 3 from both rear sides of the mission case 3, and a chain case 14 is pivotally supported by the left and right drive shafts 13 in a forward and swingable manner. There is. A wheel shaft 16 is provided so as to project in the left-right direction from the tip of each of the left and right chain cases 14, and wheels 17 are axially supported by the left and right wheel shafts 16, respectively.

On the other hand, from the rear side of the side surface of the lower frame 6, the planter shaft 18 to which the driving force is intermittently supplied from the engine 2 side by a planted clutch mechanism (not shown) provided in the mission case 3 is the lower frame. The planting device 4 is attached to the left and right ends of the planter shaft 18, respectively.

It should be noted that the planting lever 20 for operating the on / off of the planting clutch mechanism is the handle frame 12.
It is provided on the upper end side of the so as to project rearward at a position lower than the handle 11 so that an operator can easily operate it, and is inserted into a lever guide 21 attached to the handle frame 12 side. A traveling clutch mechanism (not shown) for transmitting the driving force from the engine 2 side to the wheel shaft 16 side is also installed inside the transmission case 3, and the traveling clutch mechanism is provided on the side of the planting lever 20. A travel lever 22 for operating the opening and closing of the mechanism is provided so as to project rearward similarly to the planting lever 20 and to be inserted into the lever guide 21.

Further below the lower frame 6 is a float 2.
4 is attached via a link 26 so as to be able to move up and down, and the float 24 supports the machine body 8. At this time, an adjusting lever 27 extending rearward is provided on the link 26 side so as to be inserted through a guide 25 attached to the lower frame 6 side, and by operating the lever 27, the body of the float 24 is adjusted. The support height of 8 (height from the float 24 to the lower frame 6 and the mission case 3) can be changed.

On the other hand, from approximately the center in the front-rear direction below the mission case 3, the support drive shaft 31 is turned on and off by the engagement and disengagement of the planted clutch mechanism so that the support drive shaft 31 is provided on the left and right sides of the mission case 3. It is rotatably projected from the side surface. Then, a conventional no-till planter (large no-till rice planter) having a disk shape with teeth 29a for excavating a field on the outer periphery at the left and right ends of the support drive shaft 31 is produced. A grooving tool 29 similar to the groove rotor is attached to the grooving tool 2
A part of 9 projects downward from the lower surface of the float 24.

At this time, the grooving tool 29, as shown in FIG.
It is located on an extension line from the installation position of the left and right planting devices 4 to the front of the machine body 8. The support drive shaft 3
1 is below the engine 2 in a side view,
It is located below the center of gravity of the mission case 3. That is, the grooving tool 29 is axially supported by the mission case 3, and is located in front of the planting device 4 in the front-rear direction of the machine body 8 and below the engine 2 below the center of gravity of the mission case 3 in the up-down direction of the machine body 8. It is located at.

As described above, the lower end of the seedling table 9 is attached to the rear end side of the mission case 3 and is inclined forward.
Has a lower end located rearward of the engine 2, and an upper end inclined forward extends to above the engine 2. As a result, the seedling stand 9 that forms an acute angle in side view
In the space 32 formed below the front side of the engine 2,
The mission case 3, grooving tool 29, wheels 17, etc. are compactly accommodated in the vertical direction, and the overall length of the machine body 8 is shorter than that of a conventional walk-type rice transplanter.

On the other hand, the walk-type no-till rice planter of the present invention plant seedlings while traveling in a non-tillage field as will be described later. There is still a stump 33 of a crop cropped in the previous year. Therefore, the walking type no-tillage rice transplanter of the present invention is shown in FIGS.
As shown in FIG. 3, the left and right wheels 17 are provided at intervals such that both wheels 17 can be located between the stumps 33, and the left and right grooving tools 29 are
They are provided inside the left and right wheels 17 at intervals such that 9 can be located between the stubs 33.

At this time, the stump 33 is placed on the bottom surface of the float 24.
A groove 24a is provided for avoiding contact with. Further, by providing the grooving tool 29 inside the wheel 17 and inside the chain case 14, the chain case 14
Can also function as a guard for the grooving tool 29.

In the walking type no-tillage rice transplanter of the present invention constructed as described above, the traveling lever 22 is operated to engage the traveling clutch, and the driving force from the engine 2 is transmitted to the wheels 17 to drive the wheels. 17 is rotated and the operator holds the handle 11 to control the machine body 8 so that the float 24 is grounded in the field, and at the same time the operator operates the planting lever 20 to enter the planting clutch mechanism. By operating the planting device 4, the grooving tool 29, etc. in this state, the grooving tool 29 creates a continuous seedling planting groove 30 in the field as described later, and the planting device 4 Has a structure in which the mat-like seedlings in the seedling placing table 9 are scraped off one by one, and the scraped mat-like seedlings are planted in the groove 30 formed above.

At this time, the planting device 4 is rotated when the driving force is transmitted to the planter shaft 18 with the planting clutch mechanism in the on state, and the planting device 4 is rotated conventionally (provided in a general walking type rice transplanter). The same planting operation is performed. Since the driving force is also distributed from the planter shaft 18 side to a seedling feeding mechanism (not shown) provided in the seedling placing table 9, the seedling feeding device operates the planting device 4 by operating the planting lever 20. It operates in synchronization with.

The grooving tool 29 also operates in synchronization with the operation of the planting device 4 by the operation of the planting lever 20 with the above configuration. That is, by operating the planting lever 20, the support drive shaft 3
When 1 is rotationally driven, the grooving tool 29 is rotated, and the grooving tool 29 projects downward from the lower surface of the float 24 which is in contact with the field when the machine body 8 travels in the field as described above. The existing portion excavates the field, and a continuous groove 30 for planting seedlings is formed in the field as the machine body 8 travels.

Since the grooving tool 29 is supported by the lower frame 6 as described above, the supporting height of the machine body 8 by the float 24 is adjusted by the lever 27 as described above, so that the grooving tool 29 is supported. The amount of protrusion from the bottom surface of the float 24 can be adjusted. On the other hand, since the planting device 4 is also supported by the lower frame 6 as described above, the lever 2
By adjusting the support height of the airframe 8 by the float 24 with 7, the height from the planting device 4 to the lower surface of the float 24 is adjusted, and the planting depth is adjusted (set).

In the walk type no-tillage rice planting machine of the present invention, since the float 24 is grounded in the field in the working state (planting state) as described above, it is used for planting by the grooving tool 29. The depth of the groove 30 is proportional to the amount of protrusion of the groove making tool 29 from the float 24 (the float 2 of the lower frame 6).
4 is changed (adjusted) in inverse proportion to the height from 4, and the height of the planting device 4 from the field is (changed) adjusted. It is adjusted in inverse proportion to the height from the float 24. As a result, the depth of the groove 30 for planting formed in the field is always suitable for the planting depth, and the mat-shaped seedlings are placed in the lever 2
The planting depth can be surely planted in the field with the planting depth set by 7.

At this time, the grooving tool 29 is axially supported by the mission case 3 as described above, and the weight of the mission case 3 is applied to the grooving tool 29. In other words, mission case 3
Functions as the weight of the groove making tool 29. For this reason, even when performing non-tillage planting in a relatively hard field as described above, the ditching tool 29 does not float up from the field due to insufficient weight during the ditching, and the ditch 30 for planting with a set depth is obtained. Can be formed, and seedlings can be planted at the depth set in the groove 30.

Further, in this embodiment, the engine 2 is provided above the transmission case 3 and the grooving tool 29 is located below the engine 2. Therefore, the weight of the engine 2 is also applied to the grooving tool 29 at the same time, and the weight is weighted. Ability is further improved. Regardless of the position of the mission case 3, even if the groove making tool 29 is provided below the engine 2 and the weight of the engine 2 is mainly used as the weight, the groove 30 for planting can be formed smoothly as described above. You can

Further, as described above, the engine 2 and the like are compactly housed under the seedling placing table 9 and the overall length of the machine body 8 is relatively short. Therefore, when the machine body 8 is operated in the field as described above, It has a small turning ability and has good workability compared to conventional walk-type rice transplanters. Further, since the body 8 is compact, the operability of the body 8 is better than that of the conventional walk-type rice transplanter even when traveling on the road or when traveling in and out.
The machine body 8 is easy to handle.

On the other hand, since the wheel 17 and the grooving tool 29 are arranged at the intervals as described above, the wheel 1 is in operation while running in the field where the stump 33 remains (in the non-tillage state) as described above.
7 and the grooving tool 29 do not ride on the stump 33.
In other words, since the wheels 17 do not ride on the stump 33, the airframe 8
Since the traveling is stable and the vehicle always travels in the field (the portion other than the stump 33), the depth of the planting groove 30 does not fluctuate due to the vertical fluctuation of the traveling by the stump 33.

Since the grooving tool 29 does not ride on the stump 33, the grooving work can be performed without being affected by the stump 33, and the stable planting groove 30 can be formed in the above-mentioned field scene. . And both wheels 17 are above the stump 3
Since the no-till planting work can be carried out in a state of straddling No. 3, that is, in a state in which the stump 33 located near the center of the fuselage 8 is along the groove 24a of the float 24, the operator runs the fuselage with the stump 33 as the target. Can be
The planting work can be done straight.

Further, the walk-type no-till rice transplanter of the present invention may have a structure in which the float 24 is removed and driven wheels 36 as auxiliary wheels to be described later are attached instead of the float 24. An embodiment in which the driven wheels 36 are attached will be described below. 4 and 5 are left side views of the present embodiment,
A partial plan view and a front view are shown. Since the present embodiment has the same configuration as that shown in FIGS. 1 to 3 except that the driven wheel 36 is different, the description of the parts other than the driven wheel 36 will be omitted.

As shown in FIGS. 4 and 5, driven wheels 36, which are constructed by attaching wheels 36a and 36b to both ends of an axle 37, can be raised and lowered via links 38 and can be freely rotated. Attached to the airframe 8
Are supported by the driven wheels 36 and the wheels 17. At this time, the driven wheels 36 are located on the rear side of the machine body 8, but the driven wheels 36 may be provided on the front side of the machine body 8 in some cases.

On the other hand, on the link 38 side, a driven wheel adjusting lever 39 extending rearward is provided by being inserted into the guide 25 like the adjusting lever 27 of the float 24,
By operating the lever 39, the support height of the machine body 8 by the driven wheels 36 can be changed similarly to the support of the machine body 8 by the float 24 described above. As a result, similarly to the above-described embodiment, the lever 39 adjusts the planting depth of the planting operation performed by the planting device 4 and the depth of the planting groove 30 that is produced by the grooving tool 29. .

At this time, the driven wheels 36 are configured to rotate due to friction with the field as the vehicle body 8 is driven by the wheels 17 that are driving wheels, but in some cases, the driving force is supplied from the engine 2 side. You may. Meanwhile, the driven wheel 3
6 (wheels 36a, 36b) are located inside the left and right grooving tools 29, and straddle the stump 33 located substantially in the center of the machine body 8 when the walking type no-till rice transplanter of the present invention is running in the field. Left and right wheels 36a and 36b are provided at intervals. Therefore, when the machine body 8 travels in the field, not only the wheels 17 but also the driven wheels 36 do not ride on the stump 33 in the field. It is possible to perform stable field traveling and no-till planting work without being affected.

In the non-tillage field, the unevenness of the field scene is generally large as compared with the field which is scratched or roughened, but the wheel 17 and the driven wheel 36 where the ground contact with the field scene is relatively small. By supporting the machine body 8 with, it is possible to perform field traveling and no-till planting work without being significantly affected by the unevenness of the field scene. By providing the suspension mechanism on the driven wheel 36 side, the influence of the unevenness of the field scene on the machine body 8 side is further reduced.

On the other hand, as shown in FIG. 6, wheels 17 for traveling are used.
Instead of the above, a crawler 41 may be provided in front of the machine body 8 via the transmission case 40, and the crawler 41 may travel. In this case, the crawler 41 has a larger contact area with the field in the front-back direction than the wheels 17.
Not only is the straightness and stability improved when running in the field, but also when the field is relatively soft, the running part (the crawler 41 in this embodiment, the wheels 17 in the above embodiment) is used in the field. The traction force of the airframe 8 also increases.

Further, as shown in FIG. 7, the traveling wheel 1
It is also possible to remove not only the float 7 but also the float 24 from the machine body 8 and stretch the crawler 41 through the transmission case 40 over the entire length of the machine body 8. In this case, the crawler 41 is configured to change the support height of the machine body 8 like the float 24. As a result, it is possible to obtain both the advantages of the walk-through type no-till rice transplanter configured by removing the float 24 and the advantages of the traveling mechanism configured by the crawler 41. Further, by changing the support height of the machine body 8 by the crawler 41, the planting depth and the working groove depth can be adjusted.

Then, the traveling crawler 41 shown above.
Alternatively, as shown in FIGS. 8 (a) and 8 (b), the front lower portion may be inclined. As a result, as shown in FIG. 8B, the rear of the machine body 8 is floated from the farm field during traveling, and the inclined portion of the crawler 41 is grounded in the farm field, whereby the machine body 8 can be easily circled.

Further, as shown in FIGS. 9 (a) and 9 (b), of the plurality of rolling wheels 42 provided on the crawler 41, two or more rolling wheels 42a located at the front are separated from the others. It may be configured to be supported by a structure, and the two or more front wheels 42a may be configured to be pushed down by an arm 43 for pushing down as required by the operator. With this structure, when the machine body 8 travels, as shown in FIG. 9B, the two or more front rolling wheels 42a are pushed down, and the rolling wheels 42 of the crawler 41 are pushed down.
By rotating the airframe 8 at the portion grounded by a,
Not only can the body 8 be easily rotated, but the rolling wheels 42a are not pushed down during normal straight running,
The straightness of the body 8 is guaranteed.

[0037]

According to the present invention configured as described above, since the grooving tool is axially supported by the mission case,
Even when performing no-till planting in a relatively hard field due to the weight of the mission case being applied to the grooving tool, the grooving tool can smoothly form a groove for planting without floating from the field, and is a walking type. There is an effect that a no-till planter can be put into practical use. Also, when the grooving tool is provided below the engine, the weight of the engine is applied to the grooving tool, and the groove for planting can be formed smoothly.

Then, the engine is positioned above the grooving tool, and the seedling placing table whose lower end is positioned behind the engine is
By sloping the tip on the upper side of the engine,
There is also an effect that the engine and the grooving tool are vertically housed inside the slope of the seedling stand, which can shorten the entire length of the aircraft.

On the other hand, a stump of a crop cropped in the previous year generally remains in a non-tillage field, but a walking type non-tillage planting machine provided with a plurality of grooving tools in the left-right direction. In the case of, the walking type no-till planter is used for work running in the field by installing the plurality of grooving tools and the left and right wheels so that they are located between the stumps when the machine is running in the field. Medium, wheels and grooving tools do not ride on the stump. For this reason, the aircraft can run stably and can perform stable trenching work.Furthermore, the no-till planting work is performed with both wheels straddling the stump. There is also an advantage that it can be done.

In the non-tillage field, the unevenness of the field scene is larger than that in the scratched or rough-raised field, but the walking type no-tillage planting machine is constructed with running wheels and driven wheels. By adopting a structure for supporting and traveling in the field, it is possible to stably perform field traveling and no-till planting work without being greatly affected by unevenness of the field scene.

[Brief description of drawings]

FIG. 1 is a left side view of a walkable no-till rice transplanter.

FIG. 2 is a front view of a walk-behind no-till rice transplanter.

FIG. 3 is a plan view of a walk-behind no-till rice transplanter.

FIG. 4 is a left side view and a partial plan view of a walk-behind no-till rice transplanter.

FIG. 5 is a front view of a walkable no-till rice transplanter.

FIG. 6 is a left side view showing an example of a walk-through type no-tillage rice transplanter in which a traveling portion is a crawler.

FIG. 7 is a left side view showing an example of a walk-through type no-tillage rice transplanter in which a traveling portion is a crawler.

FIG. 8A is a left side view showing an example of a walking type no-till rice transplanter using a crawler as a traveling portion, and FIG. 8B is a left side view showing a traveling state of the machine.

FIG. 9A is a left side view showing an example of a walking type no-tillage rice transplanter using a crawler as a running portion, and FIG. 9B is a left side view showing a traveling state of the machine body.

[Explanation of symbols]

 2 Engine 3 Mission case 4 Planting device 8 Airframe 9 Seedling stand 17 Wheels 29 Grooving tool 30 Groove 33 Stump 36 Driven wheel

Claims (4)

[Claims] 1. An engine (2) and a mission case (3) are provided on the side of a machine body (8) supported by left and right wheels (17), and a planting work is carried out as the machine body (8) travels. The furrowing device (4) is provided on the machine body (8) side, and the groove making tool (29) that is rotationally driven to form the furrowing groove (30) in the field in the non-tillage state is provided in the furnishing device (4). A walkable no-till planter in which the groove-making tool (29) is pivotally supported on the mission case (3) in the front-positioned one. 2. An engine (2) and a mission case (3) are provided on the side of the machine body (8) supported by the left and right wheels (17), and a planting work is carried out along with the traveling of the machine body (8). The furrowing device (4) is provided on the machine body (8) side, and the groove making tool (29) that is rotationally driven to form the furrowing groove (30) in the field in the non-tillage state is provided in the furnishing device (4). In the one arranged in the front, the seed making tool (29) is provided below the engine (2) and a plurality of seedlings to be planted by the planting device (4) are previously set. Position (9) the lower end behind the engine (2),
Aircraft body (8) with the upper end inclined to the upper side of the engine (2)
Walk-type no-till planter installed on the side. 3. A plurality of grooving tools (29) are provided in the left-right direction,
The plurality of grooving tools (29) and left and right wheels (17)
Stumps (33) of the crops after cutting that remain in the field in which the respective wheels (17) and groove making tools (29) are in the non-till state
The walkable no-till planter according to claim 1 or 2, which is installed so as to be located between the two. 4. A driven wheel (3) for supporting the vehicle body (8) while the vehicle body (8) is traveling, being in contact with the wheel (17) in the field.
6. The device 6) is provided in front of or behind the airframe (8).
Or 2 or 3 walk-behind no-till planter.