JP2017225376A - Sulky type direct sowing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange properly a small number of row clutches, when a fertilizing apparatus, an agent feeder and a sowing device are provided on a rear part of a machine body of a sulky type direct sowing machine.SOLUTION: Power transmitted from a machine body is branched in parallel into a plurality of transmission systems 51, 52, and small number row clutches 61, 62 are provided on each of the plurality of transmission systems 51, 52, respectively. A fertilizer delivery part 19, an agent delivery part 25 and a seed delivery part 36 of each row corresponding to the small number row clutches 61, 62 are provided on each transmission downstream side of the small number row clutches 61, 62.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a riding type direct sowing machine that supplies seeds to a field while traveling.

  As a riding direct seeding machine, as disclosed in Patent Document 1, a fertilizer application device (2 in FIG. 1 and FIG. 2 of Patent Document 1) for supplying fertilizer to the field, and a drug supply device (2 in FIG. 1 and FIG. 2 of Patent Document 1). 1 of FIG. 1 of FIG. 1 and FIG. 2 of Patent Document 1 and a seeding device for supplying seeds to a field (4 of FIG. 1 of FIG. 1 and FIG. 2 of FIG. 2) are provided in the body of a riding type direct seeder. .

  In the case of transmitting the power transmitted from the airframe to the fertilizer application device, the medicine supply device, and the seeding device, in Patent Document 1, the power transmitted from the airframe by the transmission shaft (18 in FIGS. 1 and 2 of Patent Document 1). However, the output shaft (of Patent Document 1 is disclosed in Patent Document 1 through the transmission mechanism inside the feed case (Patent Document 1 in FIGS. 3 and 4A) and the output shaft case (Patent Document 1 in FIGS. 3 and 4B). 62) in FIG. 3 and FIG.

  In Patent Document 1, the power movement of the output shaft is transmitted to the fertilizer device via an interlocking rod (22 in FIGS. 3, 4 and 8 of Patent Document 1), and the power movement of the output shaft is transmitted to the interlocking rod. (32 in FIGS. 3, 4 and 9 of Patent Document 1) and the like are transmitted to the medicine supply device. The power of the output shaft is transmitted to the output shaft (44 in FIG. 2 of Patent Document 1) via the transmission mechanism inside the transmission case (61 in FIG. 2 of Patent Document 1), and transmitted from the output shaft to the seeding device. Has been.

  As described above, in Patent Document 1, the power transmitted from the airframe is such that the three transmission systems branch in parallel from the output shaft, and the three transmission systems are connected to the fertilizer application device, drug supply device, and seeding device. It is in the state.

JP 2014-233286 A

  When a fertilizer, a medicine, and a seed are supplied to a plurality of strips in a riding type direct sowing machine, it is necessary to provide a minority clutch that stops supply of fertilizer, a medicine, and a seed in a specific minority strip (for example, six strips). In the model, if 2 is one minority, the first and second minority clutch, the 3rd and 4th minority clutch, the 5th and 6th minority With clutch).

  An object of the present invention is to appropriately arrange a small number of clutches when a fertilizer application device, a medicine supply device, and a seeding device are provided at the rear part of the body of a riding type direct seeding machine.

(Constitution)
A feature of the present invention resides in the following configuration in the riding type direct seeder.
A fertilizer hopper comprising a fertilizer hopper for storing fertilizer and a plurality of fertilizer feeding sections for feeding the fertilizer of the fertilizer hopper and supplying the fertilizer to the field;
A drug supply device comprising a drug hopper for storing a drug and a plurality of drug supply units for supplying the drug from the drug hopper and supplying it to the field;
A seed hopper for storing seeds and a seeding device comprising a plurality of seed feeding units for feeding seeds of the seed hopper and feeding them to the field, are provided at the rear of the aircraft,
The power transmitted from the airframe is branched in parallel to a plurality of transmission systems, and each of the plurality of transmission systems is provided with a small number of clutches,
The fertilizer feeding part, the medicine feeding part, and the seed feeding part of the strip corresponding to the minority clutch are provided on the lower transmission side of each of the minority clutches.

(Operation and effect of the invention)
According to the present invention, for example, in the four-strip model, if two strips are one minor strip, the power transmitted from the fuselage is branched in parallel to the two transmission systems, and each of the two transmission systems has a minority strip. A clutch is provided (minority clutch for the first and second stripes, minority clutch for the third and fourth stripes).

In the above-described configuration, according to the present invention, the fertilizer feeding unit of the fertilizer application device of the first and second strips and the drug feeding unit of the drug supply device are provided on the lower transmission side of the first and second strip minority clutches. And the seed feeding unit of the seeding device, and the fertilizer feeding unit of the fertilizer feeding device of the third and fourth strips, the chemical feeding device of the minority clutch for the third and fourth strips The medicine feeding part and the seed feeding part of the seeding device are provided.
Thereby, for example, by manipulating the minority clutches for the first and second strips to the disengaged state, the fertilizer feeding unit of the fertilizer for the first and second strips, the drug feeding unit of the drug supply device, and the seeding The seed feeding part of the apparatus can be stopped.

  According to the present invention, one small number of clutches becomes a common small number of clutches for the fertilizer supply unit of the fertilizer application device, the chemical supply unit of the chemical supply device, and the seed supply unit of the seeding device corresponding to the small number of clutches. Therefore, it is not necessary to provide a small number of clutches in each of the fertilizer feeding unit of the fertilizer application device, the drug feeding unit of the drug supply device, and the seed feeding unit of the seeding device, which is advantageous in terms of simplification of the structure.

(Constitution)
In the present invention,
In a side view, it is preferable that the fertilizer application device, the drug supply device, and the seeding device are arranged in the front-rear direction from the front side.

(Operation and effect of the invention)
According to the present invention, in the side view, by arranging in the front-rear direction in the order of the fertilizer, drug supply device and seeding device from the front side (in comparison between the relatively large fertilizer and seeding device in the side view) From a small number of clutches to the fertilizer feeding part of the fertilizer applicator, the transmission system to the drug feeding part of the drug feeding device, and the seed feeding part of the seeding device. The transmission system can be compacted.

(Constitution)
In the present invention,
On the lower transmission side of the small number of clutches, the transmission system to the fertilizer feeding part and the transmission system to the seed feeding part are branched in parallel.
It is preferable that the medicine feeding part is provided on the lower transmission side of the seed feeding part.

(Operation and effect of the invention)
As described above, in the state of being arranged in the front-rear direction in the order of the fertilizer application device, the drug supply device, and the seeding device from the front side in the side view, according to the present invention, the transmission system to the fertilizer feeding unit of the fertilizer application in the side view Is placed on the front side, and the transmission system to the seed feeding unit of the seeding device is arranged on the rear side, and the transmission system to the drug feeding unit of the drug supply device is the seed feeding of the rear seeding device. It will be in the state arrange | positioned toward a chemical | medical agent delivery part of the chemical | medical agent supply apparatus of a front side from a part.

  Thereby, according to the present invention, in a side view, between the transmission system (front side) to the fertilizer feeding part of the fertilizer application device and the transmission system (rear side) to the seed feeding part of the seeding device, The transmission system to the fertilizer feeding unit of the fertilizer application device, the transmission system to the chemical feeding unit of the chemical supply device, and the transmission system to the seed feeding unit of the seeding device are in a state where the transmission system to the chemical feeding unit is arranged Can be summarized in a compact.

(Constitution)
In the present invention,
A first transmission mechanism from the seed feeding part to the relay member and a second transmission mechanism from the relay member to the medicine feeding part are provided, and the power of the seed feeding part is the first transmission mechanism and the relay. Via the member and the second transmission mechanism, is transmitted to the drug delivery portion,
The relay member is a rocking body that rocks around a rocking shaft in the left-right direction,
In a side view, it is preferable that the swing shaft is disposed above the fertilizer feed shaft that drives the fertilizer feed portion.

(Operation and effect of the invention)
According to the present invention, the transmission system to the medicine feeding part of the medicine supply device includes the first transmission mechanism from the seed feeding part of the seeding device to the relay member, the relay member, and the relay member to the medicine feeding part of the medicine supply device. And the second transmission mechanism, and the relay member swings around the swing shaft in the left-right direction.

In this case, according to the present invention, the rocking shaft of the relay member is disposed above the fertilizer feed shaft that drives the fertilizer feed portion of the fertilizer application device in a side view.
Thereby, as described above, in the state where the transmission system to the drug delivery unit of the drug supply device is arranged from the seed delivery unit of the rear sowing device toward the drug delivery unit of the front drug supply device, While avoiding interference with the members arranged on the lower side of the transmission system to the drug delivery part of the supply device, the transmission system to the drug delivery part of the drug supply device can be arranged linearly, The transmission efficiency from the seed feeding unit of the seeding device to the drug feeding unit of the drug supply device can be improved.

(Constitution)
In the present invention,
The second transmission mechanism is
A one-way clutch is provided on a medicine feeding shaft that drives the medicine feeding portion, and a linkage member is connected across the arm portion extended from the one-way clutch and the relay member,
The swing of the relay member is transmitted as a reciprocating rotation to the one-way clutch through the linkage member and the arm as a reciprocating operation, and the medicine feeding shaft is rotationally driven in one direction by the reciprocating rotation of the one-way clutch. Configured to
In a side view, it is preferable that the swing range of the arm portion is arranged at a position farther rearward than the fertilizer application.

(Operation and effect of the invention)
According to the present invention, in the second transmission mechanism from the relay member to the drug delivery unit of the drug supply device in the transmission system to the drug delivery unit of the aforementioned drug supply device, the drug delivery shaft of the drug supply unit of the drug supply device is provided. A one-way clutch, an arm portion extended from the one-way clutch, and a linkage member connected across the arm portion and the relay member.
In this case, according to the present invention, the swing range of the arm portion of the one-way clutch is arranged at a position farther away from the fertilizer, and the fertilizer device can be operated even if the arm portion of the one-way clutch swings. Since there is no interference, transmission to the medicine delivery part of the medicine supply device can be performed without difficulty.

It is a whole side view of a riding type direct seeding machine. It is a side view of a fertilizer application device, a medicine supply device, and a seeding device. It is a rear view of a fertilizer application device, a medicine supply device, and a seeding device. It is whole perspective views, such as a fertilizer support frame, a chemical | medical agent support frame, and a seed support frame. It is a rear view of the vicinity of a fertilizer applicator. It is a rear view of the vicinity of a medicine supply device. It is a top view of a float. It is the schematic which shows the transmission system to a fertilizer, a chemical | medical agent supply apparatus, and a sowing apparatus. It is sectional drawing of a feed case. It is a side view which shows the transmission system to the left fertilizer and the left chemical | medical agent supply apparatus. It is a rear view which shows the transmission system to the left chemical | medical agent supply apparatus. It is a disassembled perspective view which shows the transmission system to the left chemical | medical agent supply apparatus. It is a rear view which shows the transmission system to the right chemical | medical agent supply apparatus. It is a disassembled perspective view which shows the transmission system to the right chemical | medical agent supply apparatus. It is a vertical side view of the vicinity of a chemical | medical agent pipe and a chemical | medical agent supply part. It is a disassembled perspective view of a chemical | medical agent pipe and a supporting member.

  The front-rear direction and the left-right direction in the embodiment of the present invention are described as follows unless otherwise specified. The forward traveling direction during the work travel of the airframe is “front”, and the backward traveling direction is “rear”. The direction corresponding to the right side is “right” and the direction corresponding to the left side is “left” based on the forward posture in the front-rear direction.

[1]
The overall configuration of the riding type direct seeder will be described.
As shown in FIGS. 1, 2, and 3, a link mechanism 3 and a hydraulic cylinder 4 that drives the link mechanism 3 to move up and down are provided at the rear of the machine body including the right and left front wheels 1 and the right and left rear wheels 2. The four-row type fertilizer 5, the four-row type drug supply device 6, the four-row type seeding device 7, the drug spraying device 8, and the float 9 are supported at the rear of the link mechanism 3, and the four-row type riding is used. A direct seeding machine is configured.

  As shown in FIGS. 2, 5, and 8, a support shaft 10 is connected to the lower part of the vertical link 3 a at the rear end of the link mechanism 3 in the front-rear direction, and the feed case 11 is around the horizontal axis P <b> 1 in the front-rear direction. It is supported by the support shaft 10 so as to be able to roll freely. Right and left support cases 11a are integrally formed on the right and left lateral sides of the feed case 11, and the support case 11a extends from the feed case 11 to the right and left sides. The right and left transmission cases 12 are connected to the end of the support case 11a of the feed case 11 and extend to the rear side.

  As shown in FIGS. 2 and 7, in the float 9, a main body 9 a having a lateral width over the entire width of the four strips, a front portion 9 b extending from the left and right center of the main body 9 a to the front side, and the right of the main body 9 a And a right and left rear portion 9c extending from the left portion to the rear side, and a single float 9 extending over four strips.

  As shown in FIGS. 2, 5, and 7, the right and left arms 14 are connected to the rear portions of the right and left transmission cases 12 to extend downward, and the right and left rear portions 9 c of the float 9. The right and left brackets 15 are connected to each other. Accordingly, the right and left rear portions 9c of the float 9 are supported through the bracket 15 so as to be swingable up and down around the horizontal axis P2 in the left-right direction below the right and left arms 14.

  As shown in FIGS. 2 and 7, the support frame 13 is connected across the right and left arms 14, and a grooving device 93 that forms a drainage groove in the field is connected to the support frame 13. It is supported. Thereby, the groove cutter 93 is arrange | positioned in the left-right center CL of the body at the rear side of the float 9.

  In the feed case 11 (support case 11a) and the transmission case 12 configured as described above, as will be described later, the fertilizer application device 5, the drug supply device 6, the seeding device 7, and the drug spraying device 8 are supported. A transmission system to the device 5, the medicine supply device 6 and the seeding device 7 is configured.

[2]
Next, the support structure of the fertilizer applicator 5 will be described.
As shown in FIGS. 2, 4, and 5, the right and left support frames 16 are connected to the right and left portions of the support case 11 a of the feed case 11 and extend upward, and the fertilizer extends in the left-right direction. A support frame 17 is connected over the upper portions of the right and left support frames 16.

  As shown in FIGS. 1, 2, and 5, the fertilizer application device 5 includes two fertilizer hoppers 18 that store powdered fertilizers, and four fertilizer feeding units 19 that feed out the fertilizers from the fertilizer hoppers 18 and supply them to the field. And.

  As shown in FIGS. 2, 4, and 5, four fertilizer feeding parts 19 are connected to the front surface of the fertilizer support frame 17 at a predetermined interval in the left-right direction (the fertilizer feeding part 19 is a fertilizer in a side view). The state located in the front side of the support frame 17). The right fertilizer hopper 18 is connected over the upper portions of the two right fertilizer feed portions 19, and the left fertilizer hopper 18 is connected over the upper portions of the two left fertilizer feed portions 19.

  As shown in FIGS. 2 and 5, the fertilizer hopper 18 is made of a transparent synthetic resin so that the inside can be seen from the outside, and a lid 18 a is provided on the top of the fertilizer hopper 18. It has been. The lid portion 18a of the fertilizer hopper 18 is supported so as to be openable and closable around the horizontal axis P3 in the left-right direction of the front portion 18F of the fertilizer hopper 18, and the fertilizer is disposed at the left and right central portion of the rear portion of the lid portion 18a of the fertilizer hopper 18. A fixing portion 18b that can fix and release the lid portion 18a of the hopper 18 in the closed position is provided.

  As shown in FIGS. 2, 5, and 7, four fertilizer grooving plates 20, four fertilizer groovers 21, and four fertilizer covering soil members 22 are provided in the float 9, and the fertilizer feeding unit 19 is provided. A fertilizer pipe 23 is connected across the fertilizer groove 21.

  As a result, as shown in FIGS. 2, 5, and 7, a groove is formed in the field scene by the fertilizer grooving plate 20 and the fertilizer grooving device 21 as the machine body advances, and is fed from the fertilizer feeding unit 19. The fertilizer is supplied to the groove via the fertilizer pipe 23 and the fertilizer groover 21, and the groove supplied with the fertilizer is filled with the fertilizer covering member 22.

[3]
Next, the support structure of the medicine supply device 6 will be described (No. 1).
As shown in FIGS. 1, 2, and 6, the medicine supply device 6 feeds two medicine hoppers 24 for storing powdery medicines (insecticide, bactericides, etc.) and medicines from the medicine hopper 24 to the field. And four medicine supply sections 25 to be supplied.

  As shown in FIGS. 4, 5, and 6, the right medicine support frame 30 is connected across the two right medicine delivery sections 25, and the left medicine is delivered across the two left medicine delivery sections 25. The support frame 30 is connected. The connecting member 32 is connected to the fertilizer support frame 17 and extends upward, and the connecting member 32 is connected to a portion of the medicine support frame 30 on the left and right center CL side.

As shown in FIGS. 4, 5, and 6, a bracket 17 a is connected to the right and left portions of the fertilizer support frame 17, and a connecting member 33 is connected to the bracket 17 a of the fertilizer support frame 17 and extends upward. The connecting member 33 is connected to the opposite side of the left and right center CL of the machine body in the medicine support frame 30.
With the above structure, the medicine support frame 30 is connected to the fertilizer support frame 17 via the connection members 32 and 33.

  As shown in FIGS. 2, 5, and 6, the right drug hopper 24 is connected over the upper part of the right two drug delivery parts 25, and over the upper part of the left two drug delivery parts 25, The left drug hopper 24 is connected.

  As shown in FIGS. 4, 5, and 6, a U-shaped drug hopper support frame 31 is provided in a rear view, and the drug hopper support frame 31 is connected to the drug support frame 30. The right side portion of the bottom portion 24B of the drug hopper 24 is connected to and supported by the right side portion of the drug hopper support frame 31, and the left side portion of the bottom portion 24B of the drug hopper 24 is connected to the left side portion of the drug hopper support frame 31. It is supported.

  As shown in FIGS. 2, 5, and 6, the drug hopper 24 is made of a transparent synthetic resin so that the inside can be seen from the outside, and a lid portion 24 a is formed on the top of the drug hopper 24. Is provided. The lid portion 24a of the medicine hopper 24 is supported so as to be openable and closable around the horizontal axis P4 in the left-right direction of the front portion 24F of the medicine hopper 24. A fixing portion 24b that can fix and release the lid portion 24a of the hopper 24 in the closed position is provided.

[4]
Next, the support structure of the medicine supply device 6 will be described (No. 2).
As shown in FIGS. 2, 6, and 7, four drug grooving plates 26, four drug supply units 27, and four drug cover members 28 are provided in the float 9. The drug pipes 29 and 76 are connected across the drug supply unit 27. As shown in FIGS. 2, 4, and 6, a support member 77 is connected to a front portion of a support member 69 described in [11] described later, and a drug pipe 76 is connected to and supported by the support member 77. Yes.

  As a result, as shown in FIGS. 2, 6, and 7, a groove is formed in the farm scene by the drug grooving plate 26 as the machine progresses, and the drug fed from the drug feeding unit 25 is fed into the drug pipe. 29 and 76 and the medicine supply unit 27 are supplied to the grooves, and the grooves supplied with the medicine are filled with the medicine covering member 28.

  As shown in FIGS. 15 and 16, the lower part of the support member 77 is bent in a side view, and an opening 77 a and a notch 77 b opened downward are provided at the lower part of the support member 77. The drug pipe 76 is inserted into the opening 77a and the notch 77b of the support member 77, and the attachment part 76b of the drug pipe 76 is bolted to the nuts 94 connected to both sides of the notch 77b of the support member 77. .

  As shown in FIGS. 15 and 16, since the convex portion 76a is provided at the lower part of the drug pipe 76, the convex portion 76a of the drug pipe 76 is facing backward (the outlet 76c at the lower end of the drug pipe 76 is obliquely forward. In the downward state) (normal attachment state), the attachment portion 76b of the drug pipe 76 is bolted to the nut 94 of the support member 77.

  In this case, as shown in FIGS. 15 and 16, the convex portion 76a of the drug pipe 76 is in a forward-facing state (the outlet 76c at the lower end of the drug pipe 76 is obliquely rearward and downward) (incorrect mounting state), Even if the attachment portion 76 b of the drug pipe 76 is bolted to the nut 94 of the support member 77, the convex portion 76 a of the drug pipe 76 hits the upper end of the notch 77 b of the support member 77, and the drug 94 contacts the nut 94 of the support member 77. The attachment portion 76b of the pipe 76 cannot be bolted.

[5]
Next, the support structure of the seeding device 7 will be described.
As shown in FIGS. 2, 3, and 4, the right and left brackets 38 are connected to the rear portion of the transmission case 12, and the seed support frame 34 along the left and right direction extends over the right and left brackets 38. It is connected.

  As shown in FIGS. 2 and 3, the seeding device 7 includes two seed hoppers 35 that store granular seeds, and four seed feeding units 36 that feed seeds from the seed hoppers 35 and supply them to the field. I have. A guide member 37 having a front wall, right and left lateral walls is connected to a lower portion of the seed feeding portion 36.

  As shown in FIGS. 2, 3, and 4, four seed feeding parts 36 are connected to the rear surface of the seed support frame 34 at a predetermined interval in the left-right direction (the seed feeding part 36 is a seed in a side view). The state located on the rear side of the support frame 34). The right seed hopper 35 is connected over the upper part of the two right seed feeding parts 36, and the left seed hopper 35 is connected over the upper part of the two left seed feeding parts 36.

  As shown in FIGS. 2 and 3, the seed hopper 35 is made of a transparent synthetic resin so that the inside can be seen from the outside. A lid 35 a is provided on the top of the seed hopper 35. It has been. The lid portion 35a of the seed hopper 35 is supported so as to be openable and closable around the horizontal axis P5 in the left-right direction of the front portion 35F of the seed hopper 35. A fixing portion 35b that can fix and release the lid portion 35a of the hopper 35 in the closed position is provided.

  As a result, as shown in FIGS. 2, 3, and 7, a groove is formed in the farm scene by the drug grooving plate 26 with the advance of the machine body, the drug fed from the drug feeding unit 25 is supplied to the groove, and the drug is The supplied groove is filled with the chemical covering member 28 (see [14] in the previous section), and the seeds (spotted state) that are intermittently delivered from the seed delivery unit 36 pass through the guide member 37 and the chemical is supplied. It falls to the position of the buried field scene (surface) (surface sowing state).

[6]
Next, the support structure of the medicine spraying device 8 will be described.
As shown in FIGS. 3 to 6, a bracket 39 is connected to the left and right center CL (see FIG. 7) of the airframe in the fertilizer support frame 17. The support frame 40 is connected to the bracket 39 and extends rearward. The support frame 40 is connected to the left and right center CL of the body of the seed support frame 34, and the bracket 43 is attached to the rear of the support frame 40. It is connected.

  As shown in FIG. 1, the medicine spraying device 8 jumps and spreads one medicine hopper 41 storing powdery medicine (herbicide etc.) and the medicine fed out from the medicine hopper 41 in a field scene. And a medicine spraying unit 42. A medicine spraying device 8 (medical spraying section 42) is configured to be attached to and detached from the bracket 43.

  As shown in FIG. 1, the drug hopper 41 is made of a transparent synthetic resin and is configured so that the inside can be seen from the outside. A lid 41 a is provided on the drug hopper 41. The lid portion 41a of the drug hopper 41 is supported so as to be openable and closable around the horizontal axis P5 in the left-right direction of the front portion of the drug hopper 41, and the drug hopper is disposed at the left and right center of the rear portion of the lid portion 41a of the drug hopper 41. 41 is provided with a fixing part 41b that can fix and release the lid part 41a at the closed position.

  As a result, as described in [16] described later and FIG. 1, the medicine in the medicine hopper 41 is fed out by a predetermined amount and is rotationally driven by an electric motor (not shown) built in the medicine spraying section 42. By the rotating body, the medicine is splashed and sprayed on the field scene (surface).

[7]
Next, the positional relationship among the fertilizer application device 5, the medicine supply device 6, the seeding device 7, and the medicine spraying device 8 will be described (part 1).
As shown in FIGS. 2, 5, and 7, the right fertilizer application device 5 (two fertilizer feed-out portions 19 and one fertilizer hopper 18, 2, Each fertilizer grooving plate 20, two fertilizer groovers 21, two fertilizer covering members 22 and two fertilizer pipes 23) are arranged.

  Similarly, as shown in FIGS. 2, 6, and 7, the left fertilizer application device 5 (two fertilizer feeding portions 19 and one fertilizer hopper 18 is disposed on the left side with respect to the left and right center CL of the airframe in the rear view and the plan view. Two fertilizer grooving plates 20, two fertilizer groovers 21, two fertilizer covering members 22, and two fertilizer pipes 23) are arranged.

  As shown in FIGS. 2, 6, and 7, the right medicine supply device 6 (two medicine delivery sections 25 and one medicine hopper 24, Two drug grooving plates 26, two drug supply units 27, two drug covering members 28, and two drug pipes 29 and 76) are arranged.

  Similarly, as shown in FIGS. 2, 6, and 7, the left drug supply device 6 (two drug delivery units 25 and one drug hopper) is located on the left side with respect to the center CL on the left and right sides in a rear view and a plan view. 24, two drug groove plates 26, two drug supply units 27, two drug cover members 28, and two drug pipes 29, 76) are arranged.

  As shown in FIGS. 2, 3, and 7, the right sowing device 7 (two seed feeding portions 36 and one seed hopper 35, 2) Individual guide members 37) are arranged.

Similarly, as shown in FIGS. 2, 3, and 7, the left sowing device 7 (two seed feeding portions 36 and one seed hopper 35) is located on the left side with respect to the left and right center CL in the rear view and the plan view. Two guide members 37) are arranged.
As shown in FIG. 1, the medicine spraying device 8 (one medicine spraying portion 42 and one medicine hopper 41) is arranged at the left and right center CL of the machine body in a rear view and a plan view. .

  As shown in FIGS. 3, 5, 6, and 7, the first article L <b> 1 (fertilizer feeding part 19, drug feeding part 25, and seed feeding part) from the left in a state of facing the advancing direction (advance side) during the work travel of the machine body. Part 36), second article L2 (fertilizer feeding part 19, drug feeding part 25 and seed feeding part 36), third article L3 (fertilizer feeding part 19, medicine feeding part 25 and seed feeding part 36), fourth article L4 (Fertilizer feeding unit 19, drug feeding unit 25 and seed feeding unit 36).

  Thereby, as shown in FIGS. 3, 5, 6, 7, the left fertilizer 5, the left medicine supply device 6, and the left seeding device 7 correspond to the first row L <b> 1 and the second row L <b> 2, The right fertilizer 5, the right medicine supply device 6, and the right sowing device 7 correspond to the Article 3 L 3 and the Article 4 L 4.

  In this case, as shown in FIGS. 3, 5, 6, and 7, the position at which the medicine delivered from the medicine delivery unit 25 is supplied to the field (the medicine grooving plate 26 and the medicine supply unit 27), and the seed delivery unit 36. The drop positions (guide members 37) of the seeds fed from the first row L1 to the fourth row L4 are positions where the fertilizer fed from the fertilizer feed section 19 is supplied to the field (fertilizer grooving plate 20 and The fertilizer grooving device 21) is a side-by-side position approaching the first L1 to the fourth L4.

[8]
Next, the positional relationship among the fertilizer application device 5, the medicine supply device 6, the seeding device 7, and the medicine spraying device 8 will be described (part 2).
As shown in FIGS. 1 and 2, in a side view, the fertilizer application device 5, the drug supply device 6, the seeding device 7, and the drug spraying device 8 are arranged in the front-rear direction from the front side.

  As shown in FIGS. 1, 2, and 3, the lid portion 18 a (upper end portion) of the fertilizer hopper 18 is disposed above the lid portion 35 a (upper end portion) of the seed hopper 35 in a side view. In a side view, the medicine feeding portion 25 is disposed above the fertilizer feeding portion 19, and the lid portion 24 a (upper end portion) of the medicine hopper 24 is located above the lid portion 18 a (upper end portion) of the fertilizer hopper 18. Is arranged.

  As shown in FIGS. 1, 2, and 3, the medicine spraying part 42 is disposed above the seed feeding part 36 in a side view, and the lid part 41 a (upper end part) of the medicine hopper 41 is the seed hopper 35. It is arrange | positioned above the cover part 35a (upper end part).

  As shown in FIGS. 1 and 2, in a side view, the rear portion 24R of the drug hopper 24 protrudes rearward from the drug supply portion 25, and the front portion 35F of the seed hopper 35 protrudes forward from the seed supply portion 36. Yes. Thereby, the front part 35F of the seed hopper 35 enters the lower side of the rear part 24R of the drug hopper 24 in a side view, and the rear part 24R of the drug hopper 24 and the front part 35F of the seed hopper 35 in a plan view. Are duplicates.

  As described above, since the medicine feeding portion 25 is disposed above the fertilizer feeding portion 19 in a side view, as shown in FIGS. 3 and 5, the upper portion of the fertilizer hopper 18 and the medicine are seen in the front-rear direction. The lower part of the hopper 24 overlaps (in a side view, the upper part of the fertilizer hopper 18 and the lower part of the medicine hopper 24 are arranged at the same height).

  In this case, as shown in FIGS. 1 and 2, the front portion 18F of the fertilizer hopper 18 protrudes forward from the fertilizer feed-out portion 19 in a side view, and the amount of protrusion to the front side of the front portion 18F of the fertilizer hopper 18 is The amount of protrusion of the fertilizer hopper 18 toward the rear side of the rear portion 18R is larger. As described above, the rear part 24R of the drug hopper 24 projects rearward from the drug delivery part 25 in a side view, and the front part 24F of the drug hopper 24 does not project forward from the drug delivery part 25.

  As described above, the upper portion of the fertilizer hopper 18 and the lower portion of the drug hopper 24 overlap each other when viewed in the front-rear direction (the upper portion of the fertilizer hopper 18 and the lower portion of the drug hopper 24 are arranged at the same height when viewed from the side. 1 and 2, the upper portion of the fertilizer hopper 18 and the lower portion of the medicine hopper 24 can be disposed close to each other as viewed from the side.

As shown in FIGS. 5 and 6, in the medicine supply device 6, one medicine hopper 24 is connected over the top of the two medicine feeding sections 25, so that the bottom 24 </ b> B of the medicine hopper 24 is delivered. It is in a state of projecting laterally from the portion 25.
Similarly, as shown in FIG. 5, in the fertilizer application device 5, one fertilizer hopper 18 is connected over the upper portions of the two fertilizer feeding portions 19, so that the bottom portion 18 </ b> B of the fertilizer hopper 18 is fertilizer feeding portion 19. It is in a state of protruding from the side to the side.

  As described above, the medicine feeding portion 25 is disposed above the fertilizer feeding portion 19 in a side view. As a result, as shown in FIGS. 5 and 6, the fertilizer hopper 18 can be visually observed from the rear side through the lower side of the bottom 24 </ b> B of the drug hopper 24 projecting laterally from the drug delivery part 25. In a state where the lid portion 18a is operated to the closed position, the fixed portion 18b of the fertilizer hopper 18 provided in the rear portion 18R of the fertilizer hopper 18 can be visually observed.

[9]
Next, the transmission structure inside the feed case 11 (support case 11a) will be described.
As shown in FIGS. 1, 2, and 8, the power of an engine (not shown) mounted on the airframe is transmitted to the input shaft 45 of the feed case 11 via the transmission shaft 44.

  As shown in FIGS. 8 and 9, a transmission shaft 46 is supported in the left-right direction inside the feed case 11, and a bevel gear 47 is rotatably supported on the transmission shaft 46, and the bevel gear 45 a and the bevel gear of the input shaft 45 are supported. 47 bites. A clutch member 48 is supported on the transmission shaft 46 by a key structure so as to rotate and slide integrally with the transmission shaft 46, and a spring 49 that biases the clutch member 48 toward the occlusal side with the bevel gear 47 is attached to the transmission shaft 46. It has been.

  As a result, as shown in FIGS. 8 and 9, a working clutch 50 is constituted by the bevel gear 47, the clutch member 48, the spring 49, and the like. When the clutch member 48 is engaged with the bevel gear 47, the power of the input shaft 45 is transmitted to the transmission shaft 46 via the bevel gear 47 and the clutch member 48 (the transmission state of the work clutch 50). When separated from the transmission shaft 46, the transmission shaft 46 stops (the working clutch 50 is disconnected).

  As shown in FIGS. 8 and 9, transmission shafts 51 and 52 (corresponding to the transmission system) are supported inside the support case 11 a of the feed case 11, and the transmission shafts 51 and 52 are rotatable independently of each other. A cylindrical transmission shaft 53 is rotatably supported independently of the transmission shafts 51 and 52 at the abutting portion of the transmission shafts 51 and 52. A sprocket 54 is attached to the transmission shaft 46 so as to rotate integrally with the transmission shaft 46 by a key structure, and the transmission shaft 53 is provided with a sprocket 53a, and a transmission chain 55 is attached across the sprocket 54 and the sprocket 53a of the transmission shaft 53. Yes.

As shown in FIGS. 8 and 9, the clutch member 56 is supported by the transmission shaft 51 so as to be rotatable and slidable integrally with the transmission shaft 51 by a spline structure, and the clutch member 56 is attached to the occlusal side with the transmission shaft 53. An energizing spring 57 is attached to the transmission shaft 51.
The clutch member 58 is supported by the transmission shaft 52 so as to rotate and slide integrally with the transmission shaft 52 by a spline structure, and a spring 59 that biases the clutch member 58 toward the occlusal side with the transmission shaft 53 is applied to the transmission shaft 52. It is attached.

  8 and 9, the transmission shaft 53, the clutch member 56, the spring 57, and the like constitute the minority clutch 61, and the transmission shaft 53, the clutch member 58, the spring 59, and the like constitute the minority clutch 62. It is configured. As will be described later, the minority clutch 61 corresponds to the first article L1 and the second article L2, and the minority clutch 62 corresponds to the third article L3 and the fourth article L4.

  As shown in FIGS. 8 and 9, when the clutch member 56 (clutch member 58) is engaged with the transmission shaft 53, the power of the transmission shaft 46 causes the transmission chain 55, the transmission shaft 53, and the clutch member 56 (clutch member 58) to move. The transmission shaft 51 is transmitted to the transmission shaft 51 (transmission state of the small number of clutches 61 (small number of clutches 62)), and when the clutch member 56 (clutch member 58) is separated from the transmission shaft 53, the transmission is performed. The shaft 51 (transmission shaft 52) is stopped (disengagement state of the minority number clutch 61 (minority number clutch 62)).

  As described above, the power transmitted from the airframe is branched in parallel to the plurality of transmission systems (transmission shafts 51 and 52), and a small number of clutches 61 are provided to each of the plurality of transmission systems (transmission shafts 51 and 52). , 62 are provided.

[10]
Next, the transmission structure to the fertilizer application device 5 will be described.
As shown in FIGS. 5 and 8, in the fertilizer application 5 on the left, a fertilizer feed shaft 63 is installed across the fertilizer feed section 19 corresponding to the first and second strips L1 and L2. In the fertilizer applicator 5 on the right, a fertilizer feed shaft 63 is installed over the fertilizer feed section 19 corresponding to the third and fourth strips L3 and L4. As shown in FIGS. 4 and 5, the bracket 17 a of the fertilizer support frame 17 is provided with a bearing portion 60, the bracket 39 is provided with a bearing portion 64, and the fertilizer feeding shaft 63 is rotatable to the bearing portions 60 and 64. It is supported by.

  As shown in FIGS. 2, 5, and 8, the end portions of the transmission shafts 51 and 52 protrude outward from the support case 11 a of the feed case 11, and the arm portions 51 a and 52 a are provided at the end portions of the transmission shafts 51 and 52. It is connected. A one-way clutch 65 (corresponding to a transmission system to the fertilizer feeding portion 19) is attached to the fertilizer feeding shaft 63, and is connected to the arm portion 65a of the one-way clutch 65 and the arm portions 51a and 52a of the transmission shafts 51 and 52. The linkage member 66 (corresponding to the transmission system to the fertilizer feeding unit 19) is connected.

  As shown in FIGS. 2, 5, and 8, in the left fertilizer 5 (right fertilizer 5), the rotation of the transmission shaft 51 (transmission shaft 52) causes the arm portion 51a of the transmission shaft 51 (transmission shaft 52) ( The reciprocating motion is converted by the arm portion 52 a) and the linkage member 66 and transmitted to the one-way clutch 65 as a reciprocating rotation, and the fertilizer feeding shaft 63 is rotationally driven in one direction by the reciprocating rotation of the one-way clutch 65. Thereby, the feeding body (not shown) inside the fertilizer feeding unit 19 is rotationally driven, and the fertilizer in the fertilizer hopper 18 is fed from the fertilizer feeding unit 19.

  In this case, as shown in FIG. 10, by changing the connection position of the linkage member 66 in the arm portion 65 a of the one-way clutch 65 along the longitudinal direction of the arm portion 65 a of the one-way clutch 65, The swinging range of the arm portion 65a can be changed (the rotation speed of the fertilizer feed shaft 63 can be changed), and the fertilizer feed amount per unit time from the fertilizer feed portion 19 is changed. can do.

  As described above, the fertilizer feed-out portion 19 for the strips corresponding to the minority clutches 61 and 62 (first to fourth L4) is provided on the lower transmission side of the minority clutches 61 and 62. ing.

[11]
Next, the transmission structure to the seeding device 7 will be described.
As shown in FIGS. 2, 3, and 8, a cylindrical transmission shaft 67 (corresponding to a transmission system to the seed feeding portion 36) is rotatably supported at the rear portion of the transmission case 12. A transmission chain 72 (corresponding to a transmission system to the seed feeding portion 36) is attached across the sprockets 51b and 52b and the sprocket 67a of the transmission shaft 67.

  As shown in FIGS. 2, 3, and 8, in the left sowing apparatus 7, the transmission shaft 68 to the seed feeding unit 36 corresponding to the first and second strips L <b> 1 and L <b> 2 (corresponding to the transmission system to the seed feeding unit 36). ) Is provided. In the right sowing apparatus 7, a transmission shaft 68 to the seed feeding part 36 corresponding to the third and fourth strips L3 and L4 is provided. The transmission shaft 68 is inserted into the transmission shaft 67 and extends right and left from the transmission case 12, and the transmission shaft 68 is connected to the transmission shaft 67, so that the transmission shafts 67 and 68 rotate together. To do.

  As shown in FIGS. 4, 6, and 10, the seed feeding part 36 is connected to the seed support frame 34 in a state where a plate-like support member 69 is sandwiched between the seed feeding part 36 and the seed support frame 34. Yes. A bearing portion 70 is provided on an extending portion 69 a that extends from the support member 69, and the transmission shaft 68 is rotatably supported by the bearing portion 70.

  As shown in FIGS. 2, 3, and 8, the seed feeding portion 36 is provided with a seed feeding shaft 71, and an input gear 71 a is fixed to the seed feeding shaft 71. A transmission gear 68 a is supported on the right and left portions of the transmission shaft 68, and the transmission gear 68 a of the transmission shaft 68 and the input gear 71 a of the seed feeding shaft 71 are engaged with each other.

  As shown in FIGS. 4, 6, and 10, the extension portion 69 a of the support member 69 is extended to the position of the seed feeding shaft 71, and the extension portion 69 a of the support member 69 is provided with a bearing portion 75. A seed feeding shaft 71 is rotatably supported by the bearing portion 75. The distance between the transmission shaft 68 and the seed feeding shaft 71 is accurately determined by the support member 69, and the engagement between the transmission gear 68a of the transmission shaft 68 and the input gear 71a of the seed feeding shaft 71 is achieved. It will be smooth.

  As shown in FIGS. 3 and 8, in the left seeding device 7 (right seeding device 7), the rotational power of the transmission shaft 51 (transmission shaft 52) is transmitted by the transmission chain 72, the transmission shafts 67 and 68, and the transmission shaft 68. The transmission gear 68a and the input gear 71a of the seed feeding shaft 71 are transmitted to the seed feeding shaft 71, and the seed feeding shaft 71 is rotationally driven. Thereby, the feeding body (not shown) inside the seed feeding unit 36 is rotationally driven, and the seeds of the seed hopper 35 are fed out from the seed feeding unit 36.

  In this case, as shown in FIGS. 3 and 8, the transmission gear 68a of the transmission shaft 68 is supported by the transmission shaft 68 so as to be relatively rotatable. A clutch member 73 is supported by the transmission shaft 68 so as to rotate and slide integrally with the transmission shaft 68, and a spring 74 that biases the clutch member 73 toward the engagement with the transmission gear 68 a of the transmission shaft 68 is attached to the transmission shaft 68. The torque limiter is configured by the clutch member 73 and the spring 74.

  Thus, in a normal state, the clutch member 73 is engaged with the transmission gear 68a of the transmission shaft 68 by the urging force of the spring 74, and the transmission shaft 68 and the transmission gear 68a rotate integrally. In the seeding device 7, when a large load is applied to the seed feeding portion 36 or the like, the spring 74 loses the load, the clutch member 73 is separated from the transmission gear 68 a of the transmission shaft 68, and the power is cut off.

  As described above, on the lower transmission side of the minority clutches 61, 62, the seed feeding portion 36 of the article (first article L1 to fourth article L4) corresponding to the minority clutches 61, 62 is provided. ing. On the lower transmission side of the small number of clutches 61, 62, the transmission system to the fertilizer feeding part 19 (one-way clutch 65 and the linking member 66) and the transmission system to the seed feeding part 36 (transmission shafts 67, 68 and transmission chain 72). ) And branches in parallel.

[12]
Next, the transmission structure to the medicine supply device 6 will be described (No. 1).
10, 11 and 12 show the transmission system to the left medicine supply device 6, and FIGS. 13 and 14 show the transmission system to the right medicine supply device 6. FIG.

As shown in FIG. 6, in the left medicine supply device 6 (right medicine supply device 6), a support member 78 is connected to the seed support frame 34, and as shown in FIGS. The support member 78 extends from the seed support frame 34 to the front side and the rear side.
As shown in FIGS. 6, 13, and 14, the connecting portion 78 c that connects the right support member 78 to the seed support frame 34 is curved so as to straddle the connection portion of the bracket 38 and the seed support frame 34 from above. It has become.

  As shown in FIGS. 6 and 10 to 14, the transmission gear 79 is rotatably supported on a left and right rotation shaft 78 a fixed to the rear portion of the support member 78, and the transmission gear 79 is connected to the second strip L <b> 2 ( It meshes with the input gear 71a of the seed feeding shaft 71 of the seed feeding part 36 corresponding to Article 4 L4). A relay member 82 (corresponding to a swinging body) is supported downward and swingably supported by a swinging shaft 78b in the left-right direction fixed to the front portion of the support member 78.

  As shown in FIGS. 6 and 10 to 14, the adjusting portion 80 is connected to the transmission gear 79 so as to rotate integrally with the transmission gear 79, and the linkage member spans the adjusting portion 80 and the relay member 82. 81 (corresponding to the first transmission mechanism) is connected.

  As shown in FIGS. 10 to 14, the adjusting portion 80 includes a first member 95 having a large number of concave engaging portions 95 a on the outer peripheral portion and connected to the transmission gear 79, and a fulcrum pin 95 b of the first member 95. A second member 96 whose posture can be freely changed, a third member 97 which is supported by the second member 96 so as to be swingable and engages with an engaging portion 95a of the first member 95, and the third member 97 is the first member 95. A spring 98 is provided to be biased toward the engaging portion 95a.

  As shown in FIGS. 10 to 14, by engaging the third member 97 with the engaging portion 95 a of the first member 95, the posture of the second member 96 with respect to the first member 95 is determined (first The posture of the second member 96 relative to the member 95 can be changed), and the adjustment portion 80 (first, second, third member and spring) is determined in a state where the posture of the second member 96 relative to the first member 95 is determined. 98) rotates integrally with the transmission gear 79. A fulcrum pin 96 a of the second member 96 is provided at a position eccentric from the rotation shaft 78 a of the support member 78, and the linkage member 81 is connected to the fulcrum pin 96 a of the second member 96.

  As a result, as described in [11] above, when the seed feeding shaft 71 (input gear 71a) is rotationally driven, the transmission gear 79 and the adjusting unit 80 are attached to the support member 78 as shown in FIGS. The linkage member 81 is driven to reciprocate in the front-rear direction by being driven to rotate about the rotation shaft 78 a, and the relay member 82 is driven to swing in the front-rear direction around the swing shaft 78 b of the support member 78.

  As shown in FIGS. 10 to 14, by changing the posture of the second member 96 with respect to the first member 95 in the adjustment unit 80, the fulcrum pin 96 a of the second member 96 is separated from the rotation shaft 78 a of the support member 78. The amount of eccentricity can be changed. Thereby, the reciprocating stroke of the linkage member 81 can be changed to a large or small, and the swing range of the relay member 82 can be changed to a large or small.

  As shown in FIGS. 10 to 14, a connection member 99 configured by bending a plate material and having a box shape is provided, the connection member 99 is connected to the linkage member 81, and the connection pin 99 a and the connection member 99 are connected to the connection member 99. A spring 99b that biases the pin 99a toward the protruding side is provided. A plurality of connection holes 82 a are provided along the longitudinal direction of the relay member 82.

10 to 14, the relay member 82 is inserted into the connection member 99, and the connection pin 99 a of the connection member 99 is inserted into the connection hole 82 a of the relay member 82. The member 99) is connected to the relay member 82.
In this case, the connection hole 82a of the relay member 82 into which the connection pin 99a of the connection member 99 is inserted is changed so that the connection position of the linkage member 81 (connection member 99) in the relay member 82 is in the longitudinal direction of the relay member 82. Accordingly, the swing range of the relay member 82 can be changed to a larger or smaller value.

[13]
Next, the transmission structure to the medicine supply device 6 will be described (No. 2).
As shown in FIGS. 6, 8, and 10, in the left medicine supply device 6 (right medicine supply device 6), the medicine delivery shaft extends over the medicine delivery section 25 corresponding to the first and second articles L <b> 1 and L <b> 2. 83 is constructed, and the medicine delivery shaft 83 is constructed over the medicine delivery portion 25 corresponding to the third and fourth articles L3 and L4.

  As shown in FIGS. 6, 8, and 10, two one-way clutches 84 and 85 (corresponding to the second transmission mechanism) are attached to the medicine delivery shaft 83, and the arm portions 84 a and 84 of the one-way clutches 84 and 85 are attached. 85a is extended downward.

  As shown in FIGS. 6, 8, and 10 to 14, the linkage member 86 (spanning the arm portion 84 a of the one-way clutch 84 and the lower portion of the swing shaft 78 b of the support member 78 in the relay member 82. Corresponding to the second transmission mechanism). A linkage member 87 (corresponding to the second transmission mechanism) is connected across the arm portion 85a of the one-way clutch 85 and the upper portion of the swing shaft 78b of the support member 78 in the relay member 82.

As described in the previous item [12], in the left medicine supply device 6 (right medicine supply device 6), when the relay member 82 is driven to swing around the swing shaft 78b of the support member 78 in the front-rear direction, As shown in FIGS. 6 and 10, when the relay member 82 swings toward the seed feeding portion 36, the linkage member 86 is pulled toward the relay member 82, and the one-way clutch 84 is rotationally driven, so that the medicine feeding shaft 83 is rotationally driven.
In this case, the linking member 87 is pushed toward the medicine delivery portion 25 and the one-way clutch 85 is rotationally driven in the reverse direction. However, the medicine delivery shaft 83 is moved in the reverse direction by the function of the one-way clutch 85. It is not driven to rotate.

  As shown in FIGS. 10, 11, and 12, in the transmission structure to the left medicine supply device 6, the support member 78 is provided with a stopper pin 78 d, and the stopper pin 78 d is extended to the rear side of the relay member 82. Yes. As shown in FIGS. 13 and 14, in the transmission structure to the left medicine supply device 6, the wall portion 78 e of the support member 78 is located on the rear side of the connection member 99.

  As a result, when the relay member 82 swings toward the seed feeding portion 36 as described above, even if the relay member 82 swings largely due to inertia, as shown in FIGS. By hitting the stopper pin 78d of the support member 78 (when the connecting member 99 hits the wall portion 78e of the support member 78), the relay member 82 is prevented from swinging greatly toward the seed feeding portion 36 side.

As shown in FIGS. 6 and 10, when the relay member 82 swings toward the medicine delivery portion 25, the linkage member 87 is pulled toward the relay member 82, and the one-way clutch 85 is driven to rotate, so that the medicine delivery shaft 83 is rotationally driven.
In this case, the linkage member 86 is pushed toward the medicine delivery portion 25 and the one-way clutch 84 is driven to rotate in the reverse direction. The function of the one-way clutch 84 causes the medicine delivery shaft 83 to move in the reverse direction. It is not driven to rotate.

As described above, the swing of the relay member 82 is transmitted as a reciprocating rotation to the one-way clutches 84 and 85 through the linkage members 86 and 87 and the arm portions 84a and 85a of the one-way clutches 84 and 85 as a reciprocating operation. The medicine delivery shaft 83 is rotationally driven in one direction by the reciprocating rotation of the one-way clutches 84 and 85.
When the medicine delivery shaft 83 is driven to rotate, a delivery body (not shown) inside the medicine delivery section 25 is driven to rotate, and the medicine in the medicine hopper 24 is delivered from the medicine delivery section 25.

  In this case, as described in [12] above, in the adjustment unit 80, the eccentric amount of the support member 78 from the rotation shaft 78a in the fulcrum pin 96a of the second member 96 is changed, and in the relay member 82 The arm portions of the one-way clutches 84 and 85 are changed by changing the swing range of the relay member 82 to be larger or smaller by changing the connection position of the linkage member 81 (connecting member 99) along the longitudinal direction of the relay member 82. The swing range A1 of 84a, 85a can be changed (the rotational speed of the medicine delivery shaft 83 can be changed), and the amount of medicine delivered from the medicine delivery section 25 per unit time can be changed. can do.

[14]
Next, the positional relationship of transmission to the medicine supply device 6 will be described (No. 1).
As described in the preceding paragraphs [10] and [11], the fertilizer feeding portion 19 and the medicines of the first article L1 to the fourth article L4 corresponding to the minority clutches 61 and 62 are provided on the lower transmission side of the minority clutches 61 and 62 and the medicine. The feeding section 25 is provided, and the medicine feeding section 25 is arranged on the lower transmission side of the seed feeding section 36.

  As shown in FIGS. 6 and 8, in the left medicine supply device 6, the first left transmission mechanism (linking member 81) from the power output unit (the transmission gear 79 and the adjusting unit 80) to the left relay member 82. And a left second transmission mechanism (one-way clutches 84 and 85 and linkage members 86 and 87) from the left relay member 82 to the left medicine supply device 6 are provided. The state is transmitted to the left medicine supply device 6 through the mechanism (link member 81), the left relay member 82, and the left second transmission mechanism (one-way clutch 84, 85 and link members 86, 87). ing.

  As shown in FIGS. 6 and 8, in the right medicine supply device 6, the first right transmission mechanism (linking member 81) from the power output unit (the transmission gear 79 and the adjusting unit 80) to the right relay member 82. And a right second transmission mechanism (one-way clutches 84 and 85 and linkage members 86 and 87) from the right relay member 82 to the right medicine supply device 6 are provided, and the power is the first transmission with the right power. The state is transmitted to the right medicine supply device 6 via the mechanism (linking member 81), the right relay member 82, and the right second transmission mechanism (one-way clutch 84, 85 and linkage members 86, 87). ing.

[15]
Next, the positional relationship of transmission to the medicine supply device 6 will be described (No. 2).
As shown in FIGS. 6 and 10 to 14, in the left medicine supply device 6 and the right medicine supply device 6, the left transmission gear 79, the adjustment unit 80, the linkage member 81, the relay member 82, and the right transmission The gear 79, the adjustment unit 80, the linkage member 81, and the relay member 82 are the same.
Thereby, the left transmission gear 79, the adjustment unit 80, the linkage member 81, and the relay member 82, and the right transmission gear 79, the adjustment unit 80, the linkage member 81, and the relay member 82 are seen in the front-rear direction (back view). Are arranged in the same positional relationship.

  As described above, as shown in FIG. 6, when viewed in the front-rear direction (back view), the left first transmission mechanism (linking member 81), the transmission gear 79, the adjustment unit 80, the relay member 82, and the right first The transmission mechanism (linking member 81), the transmission gear 79, the adjusting unit 80, and the relay member 82 are in the state of being configured in the same shape.

As shown in FIGS. 6 and 10, the one-way clutches 84 and 85 (arm portions 84 a and 85 a) are the same and have a bilaterally symmetric shape with respect to their left and right centers. In the drug supply device 6 on the right, the same one-way clutches 84 and 85 are used.
The linking member 86 of the left medicine supply device 6 and the linking member 86 of the right medicine supply device 6 are configured in the opposite directions. Similarly, the linking member 87 of the left medicine supply device 6 and the linking member 87 of the right medicine supply device 6 are configured in opposite directions.

  As described above, as shown in FIG. 6, the left second transmission mechanism (one-way clutches 84 and 85 and the linking members 86 and 87) and the right second transmission mechanism ( The one-way clutches 84 and 85 and the linkage members 86 and 87) are in a state of being symmetrically formed with respect to the left and right center CL of the airframe.

  As shown in FIG. 10, the swing shaft 78b of the support member 78 is disposed above the fertilizer feed shaft 63 in a side view, and the arm portions 84a and 85a of the one-way clutches 84 and 85 are in a side view. It is located behind the fertilizer hopper 18 and the fertilizer feeding part 19.

  In this case, as shown in FIG. 10, the swing range A1 of the arm portions 84a and 85a of the one-way clutch 84 and 85 is disposed at a position farther rearward than the rear portion 18R and the fertilizer feeding portion 19 of the fertilizer hopper 18. Thus, the arm portions 84a and 85a of the one-way clutches 84 and 85 do not interfere (contact) with the rear portion 18R of the fertilizer hopper 18 and the fertilizer feeding portion 19.

  As shown in FIGS. 2 and 10, the swing range A1 of the arm portions 84a and 85a of the one-way clutch 84 and 85 enters the lower side of the rear portion 18R (rear portion of the lid portion 18a) of the fertilizer hopper 18, The swing range A1 of the arm portions 84a and 85a of the one-way clutches 84 and 85 and the rear portion 18R (rear portion of the lid portion 18a) of the fertilizer hopper 18 are overlapped in plan view.

[16]
Next, the operation of the medicine spraying device 8 will be described.
As shown in FIG. 9, a transmission shaft 88 is rotatably supported by the feed case 11, and a transmission gear 89 coupled to the transmission shaft 46 and a transmission coupled to the transmission shaft 88 outside the feed case 11. The gear 90 is engaged. An arm portion 88 a is connected to the transmission shaft 88.

  As shown in FIG. 9, a transmission shaft 91 is rotatably supported by the feed case 11. In the transmission shaft 91, arms 91 a and 91 b are connected to the inside and outside of the feed case 11, and a return spring 92 that returns the transmission shaft 91 to a predetermined phase is provided.

  With the above structure, as described in [9] above, when the transmission shaft 46 is rotationally driven, the transmission shaft 88 is rotationally driven as shown in FIG. 9, and the arm portion 88a of the transmission shaft 88 is driven. Will repeatedly hit the arm 91a of the transmission shaft 91. When the arm portion 88a of the transmission shaft 88 hits the arm portion 91a of the transmission shaft 91, the transmission shaft 91 is rotated by a predetermined angle from a predetermined phase, and then returned to the predetermined phase by the return spring 92.

  As shown in FIG. 9, the reciprocating rotation of the transmission shaft 91 as described above causes the arm portion 91 b of the transmission shaft 91 to reciprocate and swing, and the count sensor provided outside the feed case 11. (Not shown), the number of swings of the arm portion 91b of the transmission shaft 91 is counted.

  Thus, when the number of swings of the arm portion 91b of the transmission shaft 91 reaches the set number of times, the number of swings of the arm portion 91b of the transmission shaft 91 is reset, and as shown in the description in [6] above and FIG. The medicine in the medicine hopper 41 is fed out by a predetermined amount, and the medicine is sprayed on the farm scene. Is called.

[First Alternative Embodiment of the Invention]
In the above-mentioned [Mode for Carrying Out the Invention], in a 6-strip type riding type direct sowing machine, if 2 strips are one minor strip, the first and second strip minority clutches, third and fourth It will be provided with a minority clutch for the fifth article and a minority clutch for the fifth and sixth articles.

  In the eight-row riding direct sowing machine, if two strips are one minor strip, the first and second strip minority clutches, the third and fourth strip minority clutches, fifth and sixth The second strip minority clutch and the seventh and eighth minority clutches will be provided.

  In the 5-row type direct sowing machine, if 2 and 1 are minor, the first and second minority clutch, the third minority clutch, the fourth and fifth It will be equipped with a small number of clutches.

  In the 4-strip type, 6-strip type, 8-strip type, and 5-strip type riding type direct seeding machines as described above, one strip may be a single minority strip. When configured in this way, four minority clutches are used in a four-row riding direct seeding machine, six minority clutches are used in a six-row riding direct seeding machine, and eight minority clutches are used in an eight-row riding direct seeding machine. A five-strip type direct seeding machine has five minority clutches.

[Second Embodiment of the Invention]
In the above-mentioned [Mode for Carrying Out the Invention] [Second Another Mode for Carrying Out the Invention], the medicine spraying device 8 may not be provided. If the medicine spraying device 8 is not provided, the transmission shaft 88 (arm portion 88a), the transmission shaft 91 (arm portions 91a and 91b), the transmission gears 89 and 90, the return spring 92 and the count sensor shown in FIG. 9 are unnecessary. Therefore, you may comprise so that these may not be provided.

In the sowing apparatus 7, you may comprise so that a seed may be continuously drawn from the seed feeding part 36, and may be supplied to a farm scene (surface) (row seeding state).
In the state of spot sowing and row sowing of the sowing device 7, seeds are supplied to the grooves formed in the field scene, like fertilizers and chemicals, and the grooves to which the seeds are supplied are filled with seed covering members (not shown). You may comprise.

  In the state of spot seeding and row seeding of the seeding device 7, seeds are supplied to the position of the field scene filled with fertilizer, instead of supplying the seed to the position of the field scene filled with the medicine. Alternatively, the seed may be supplied to a position in a field scene different from the position where the medicine and the fertilizer are supplied and buried.

  The present invention can be applied not only to a four-row riding type direct sowing machine but also to a multi-row riding type direct sowing machine such as a six-row type or an eight-row type.

DESCRIPTION OF SYMBOLS 5 Fertilizer 6 Drug supply device 7 Seeding device 18 Fertilizer hopper 19 Fertilizer delivery part 24 Drug hopper 25 Drug delivery part 35 Seed hopper 36 Seed delivery part 51 Transmission system 52 Transmission system 61 Minority clutch 62 Minority clutch 63 Fertilizer delivery shaft 65 Transmission system to fertilizer feeding part 66 Transmission system to fertilizer feeding part 67 Transmission system to seed feeding part 68 Transmission system to seed feeding part 72 Transmission system to seed feeding part 78b Oscillating shaft 81 First transmission mechanism 82 Relay Member, Oscillator 83 Drug delivery shaft 84 Second transmission mechanism, one-way clutch 84a One-way clutch arm 85 Second transmission mechanism, one-way clutch 95a One-way clutch arm 86 Second transmission mechanism, linkage member 87 2 Transmission mechanism, linkage member A1 Swing range

Claims (5)

A fertilizer hopper comprising a fertilizer hopper for storing fertilizer and a plurality of fertilizer feeding sections for feeding the fertilizer of the fertilizer hopper and supplying the fertilizer to the field;
A drug supply device comprising a drug hopper for storing a drug and a plurality of drug supply units for supplying the drug from the drug hopper and supplying it to the field;
A seed hopper for storing seeds and a seeding device comprising a plurality of seed feeding units for feeding seeds of the seed hopper and feeding them to the field, are provided at the rear of the aircraft,
The power transmitted from the airframe is branched in parallel to a plurality of transmission systems, and each of the plurality of transmission systems is provided with a small number of clutches,
The riding-type direct seeding machine provided with the fertilizer feeding portion, the medicine feeding portion, and the seed feeding portion of the row corresponding to the minority number clutch on the lower transmission side of each of the minority number clutches.   The riding type direct sowing machine according to claim 1, which is disposed in the front-rear direction in the order of the fertilizer application device, the drug supply device, and the seeding device from the front side in a side view. On the lower transmission side of the small number of clutches, the transmission system to the fertilizer feeding part and the transmission system to the seed feeding part are branched in parallel.
The riding type direct seeding machine according to claim 2, wherein the medicine feeding part is provided on a lower transmission side of the seed feeding part. A first transmission mechanism from the seed feeding part to the relay member and a second transmission mechanism from the relay member to the medicine feeding part are provided, and the power of the seed feeding part is the first transmission mechanism and the relay. Via the member and the second transmission mechanism, is transmitted to the drug delivery portion,
The relay member is a rocking body that rocks around a rocking shaft in the left-right direction,
The riding type direct seeder according to claim 3, wherein the swinging shaft is disposed above a fertilizer feeding shaft that drives the fertilizer feeding portion in a side view. The second transmission mechanism is
A one-way clutch is provided on a medicine feeding shaft that drives the medicine feeding portion, and a linkage member is connected across the arm portion extended from the one-way clutch and the relay member,
The swing of the relay member is transmitted as a reciprocating rotation to the one-way clutch through the linkage member and the arm as a reciprocating operation, and the medicine feeding shaft is rotationally driven in one direction by the reciprocating rotation of the one-way clutch. Configured to
The riding type direct seeder according to claim 4, wherein the swinging range of the arm portion is arranged at a position farther rearward than the fertilizer application in a side view.

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