JP5109623B2 - Multipurpose machine - Google Patents

Description

The present invention relates to a multipurpose machine capable of selectively mounting a plurality of working machines of a seeding machine for directly sowing seedling transplanting machines and seeds in a field.

A direct seeder equipped with a direct seeder with a float is known.
In the present specification, the forward direction of the direct seeder is referred to as the front side, the backward direction is referred to as the rear side, and the left and right directions are referred to as the left side and the right side, respectively, facing the forward direction.
JP 2006-174794 A

The direct sowing machine disclosed in Patent Document 1 seeds seeds with a direct sowing apparatus supported by a float immediately after leveling a field with a float, but the direct sowing line cannot be changed.
However, depending on the user's purpose and purpose, there are times when it is desirable to change the interval of direct sowing.

The subject of this invention is improving the versatility of the multipurpose machine which can selectively mount | wear with multiple types of working machines including a seedling transplanter and a seeder .

The above-mentioned problem of the present invention is solved by the following means.
The invention according to claim 1 is provided with an elevating link (14) at the rear end of the traveling vehicle body (2), and in order to selectively mount a plurality of types of working machines including a seedling transplanter and a seeder (3). In the multipurpose machine in which the detachable hitch (16) to which the work machine can be attached and detached is provided at the tip of the lift link (14), the seeder (3) has a plurality of floats (19) for leveling the field. Each float mounting structure (100, 101, 102) is attached to each float (19), and a soaking groove (7) is attached to each float. The float mounting structure (100, 101, 102) is provided in different positions in the left-right direction, and the float mounting structure (100, 101, 102) to which the float (19) is mounted is selected to provide the float (19). Set the horizontal position And a further possible configuration, among the plurality disposed float mounting structure (100, 101), another type of float mounting structure when between some of the float mounting structure (100, 101), different seeding conditions It is a multi-purpose machine placed at a position where it can be shared as a body .
According to the second aspect of the present invention, the float (19) is attached from a part of the float mounting structure (100, 101) via the spacer (103), and the part of the float mounting structure (100, 101) is different. It is a multipurpose machine of Claim 1 made into the structure shared as another kind of float mounting structure at the time of sowing .
The invention described in claim 3 is provided with a float sensor (84) for detecting the front / rear inclination angle of the float (19), and controls the seeding machine (3) to move up and down so that the detected value of the float sensor (84) becomes a predetermined value. A sensitivity adjustment dial (85) for changing the control sensitivity in the raising and lowering control of the seeding machine (3) is provided, and a softness sensor (86) for detecting the softness of the field by entering the soil is provided. A drainage groove device (33) for forming a drainage groove is provided at a rotating tip of an arm (35) that rotates between a plurality of floats (19) and vertically, and the arm (35) is provided. A drainage groove for changing the pressing load of the drainage groover (33) to the field by providing a groover pressing spring (87) for rotating and energizing the groover pressing spring (87). A motor (105) for the vertical movement is provided, and a sensitivity adjustment diagram Control for controlling the operation of the drainage grooving vertical motor (105) in conjunction with the control sensitivity in the raising / lowering control of the sowing part (3) by (85) or the detection result of the field softness by the softness sensor (86) The multipurpose machine according to claim 1 or 2, wherein a portion (65a) is provided and a stand (106) integrated with the arm (35) is provided .
In the invention according to claim 4, the seeding machine (3) is used for sowing from the bottom of the seed tank (4), the feeding device (5) provided below the seed tank (4), and the feeding device (5). The feeding device (5) includes a feeding roll (22) having a number of seed grooves (21) and a feeding roll (22). A brush (26) that contacts the surface of the roll (22) is provided, and an iron plate (26a) that suppresses the deformation of the brush (26) is provided on the side surface of the brush (26) on the lower side in the rotational direction of the feeding roll (22). The multipurpose machine according to any one of claims 1 to 3 , wherein the rotor portion (120) is provided closer to the traveling vehicle body (2) than the detachable hitch (16) .

According to the first aspect of the present invention, if the seedling transplanter is attached to the detachable hitch (16), it becomes a rice transplanter, and if the seeder (3) is attached to the detachable hitch (16), it becomes a direct seeder and constitutes a multipurpose machine. And versatility increases. In addition, when the seeder (3) is mounted, the arrangement positions in the left-right direction of the plurality of floats (19) can be changed by a plurality of types of float mounting structures (100 to 102). ) Can be sowed between a plurality of streaks, the strata can be changed according to the variety of crops and the cultivation form of each region with a simple structure, and some float mounting structures (100 , 101) can be shared as another type of float mounting structure between different sowing lines, so that versatility is enhanced.
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, by attaching the float (19) from a part of the float mounting structures (100, 101) via the spacer (103). In addition, the part of the float mounting structures (100, 101) can be shared as another type of float mounting structure when different sowing lines are used, and versatility is enhanced.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2 , the pressing force of the drainage grooving device (33) can be changed in conjunction with the hardness of the soil in the field. Regardless of the hardness, the groove can be formed to a predetermined depth by the drainage groover (33). In addition, since the drainage groove device (33) is not lowered unless the stand (106) is accommodated, it is possible to prevent forgetting to lower the drainage groove device (33). Further, the stand (106) can function as a lever for adjusting the groove depth.
According to the invention of claim 4 , in addition to the effect of the invention of any one of claims 1 to 3, the iron plate (26a) can suppress wear and deformation of the brush (26), and seedling transplantation If the machine is attached to the detachable hitch (16), it becomes a rice transplanter, and if the sowing machine (3) is attached to the detachable hitch (16), it becomes a direct seeder, and a multi-purpose machine can be constructed. In this case, the common rotor part (120) can be used as it is, and versatility is enhanced.

Embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a flooded direct sowing machine 1, and this flooded direct sowing machine 1 is configured by mounting a seeding machine 3 on the rear part of a traveling vehicle body 2. The seeder 3 includes a seed tank 4, a feeding device 5, a transfer pipe 6, a sowing groover 7, and other accessory devices such as a wind turbine 8 and an air chamber 9. Sowing for 8 rows.

  The traveling vehicle body 2 includes a front wheel 10 for steering and a rear wheel 11 for propulsion, a steering seat 13 on a central engine room 12, and a steering handle for steering the front wheel 10 on the front side of the steering seat 13. 55 is provided. The power of the engine 56 disposed substantially in the center of the engine room 12 is transmitted to the relay shaft 58 via the engine output belt 57, and the hydraulic pump 59 is driven by the rotation of the relay shaft 58. Then, the transmission is transmitted from the relay shaft 58 into the transmission case 61 via the main transmission 60 which is a belt-type transmission, and the road running speed, working speed, neutral and reverse speed are changed by switching the transmission gear in the transmission case 61. These are transmitted to the front wheels 10 and the rear wheels 11 via a sub-transmission device (not shown) that can switch the traveling speed in four stages, and can travel on the paddy field.

  Further, power from the transmission case 61 is transmitted through a first transmission shaft 63 extending rearward into a feeding clutch case 62 having a built-in feeding clutch for turning on and off the driving of the feeding device 5 of the seeding machine 3 described later, The feeding clutch case 62 is transmitted from the PTO shaft to the seeding machine 3 via a detachable connecting transmission shaft 64. A signal from an engine speed sensor 56a (FIG. 16) that detects the speed of the engine 56 is input to a control unit 65a in a control box 65 provided on the right side of the control seat 13. A main transmission lever 66 for operating the main transmission 60 is provided on the right side of the steering handle 55, and a sub transmission lever 67 for operating the auxiliary transmission is provided on the left side of the steering handle 55. A signal of a sub-transmission lever sensor 67a (FIG. 16) that detects the operation position of the sub-transmission lever 67 is input to the control unit 65a in the control box 65. Further, an inclination sensor 68 for detecting the inclination of the traveling vehicle body 2 in the front-rear and left-right directions is provided at a substantially central position in the front-rear and left-right directions of the traveling vehicle body 2 behind the transmission case 61. Is input.

  The elevating link 14 includes a pair of left and right upper links 14a and a lower link 14b. The front part is pivotally connected to the rear machine casing 15 of the traveling vehicle body 2, and the connecting hitch 16 is attached to the rear part. The hydraulic cylinder 17 on the side moves up and down. The hydraulic cylinder 17 is a single-acting hydraulic cylinder, and the hydraulic pressure from the hydraulic pump 59 is supplied by the switching of the oil path by the electromagnetic hydraulic valve 69 provided on the vehicle body 2 side to rotate the lifting link 14 upward. Let When the hydraulic pressure in the hydraulic cylinder 17 is returned to the transmission case 61 that also serves as a hydraulic tank by switching the oil passage by the electromagnetic hydraulic valve 69, the elevating link 14 rotates downward.

  As shown in the enlarged side view of the hitch 16 portion in FIG. 3, the hitch 16 is provided with an upper locking groove 70 that opens upward and a lower locking groove 71 that opens forward. The upper shaft 73 provided on the upper part of the mounting frame 72 on the seeder 3 side is engaged with the groove 70, and the lifting link 14 is rotated as it is, so that the mounting frame 72 is moved by the dead weight of the seeder 3. The lower shaft 74 is rotated forward and engaged with the lower locking groove 71 at the lower portion of the mounting frame 72, and the seeder 3 is attached to and supported by the hitch 16.

  A fixing tool 75 is provided to fix the lower shaft 74 so that the lower shaft 74 does not come off the lower locking groove 71 when the lower shaft 74 is engaged with the lower locking groove 71. The fixture 75 is also a cylinder rod portion of the lock on / off cylinder 75a, and the fixture 75 is operated by the lock on / off cylinder 75a. In addition, the fixture 75 is inserted into a boss 76 that is pivotable about a left-right axis provided in the hitch 16, and includes a regulation groove 77 that regulates sliding with respect to the boss 76. .

  When the steel ball 79 urged by the spring 78 provided on the boss 76 is engaged with the restriction groove 77 and the lower restriction groove 77 is engaged with the steel ball 79 so that the fixture 75 protrudes largely upward. When the lower shaft 74 is in an unlocked state in which the lower shaft 74 can be engaged with and disengaged from the lower locking groove 71 and the lower regulation groove 77 engages with the steel ball 79 and the fixture 75 is pushed downward, the lower shaft 74 is It will be in the fixed state fixed to the lower latching groove 71. FIG.

  Further, when the mounting frame 72 is attached and fixed to the hitch 16, the lower end portion of the fixture 75 is inserted into the hole 80 provided in the lower end portion of the hitch 16 by the operation of the lock on / off cylinder 75a, and the boss 76 is rotated. The fixture 75 does not move relative to the hitch 16 without moving.

  The upper end portion of the fixing tool 75 forms a gripping portion in which the case portion of the lock on / off cylinder 75a protrudes to the right side from the lifting link 14, and the gripping portion operates the fixing tool 75 on the right side of the lifting link 14. Can be done. A lower shaft sensor (elevating link sensor) 82 for detecting a lower shaft 74 engaged with the lower locking groove 71 is provided at the lower portion of the hitch 16, and a fixture inserted into the hole 80 at the lower end portion of the hitch 16. When the fixture switch (docking switch) 81 for detecting 75 is provided, and the lower shaft sensor 82 and the fixture switch 81 are both turned on, the controller 65a indicates that the mounting frame 72 and the seeder 3 are mounted on the hitch 16. The sound output device 96 such as a buzzer is sounded after judgment.

  Accordingly, the lower shaft sensor 82 and the fixture switch 81 constitute a work implement attachment / detachment sensor that detects attachment / detachment of the work implement. A signal from the work implement attachment / detachment sensor is input to the control unit 65 a in the control box 65. The hitch 16 can replace the sowing machine 3 such as a seedling transplanter, a weeder, or a drug spreader with another working machine and attach it to the traveling vehicle body 2.

  By the way, when the sowing raising / lowering lever 18 provided on the right side of the control seat 13 is operated, an input from the sowing raising / lowering lever sensor 18a (FIG. 16) is output to the electromagnetic hydraulic valve 69 via the control unit 65a in the control box 65, The raising and lowering link 14 is rotated by the operation of the hydraulic cylinder 17 to raise and lower the seeding machine 3 with respect to the traveling vehicle body 2. Further, when the seeding machine 3 is lowered by the seeding lifting / lowering lever 18, the float sensor 84 that detects the front / rear inclination angle of the float 19 detects that the float 19 provided at the lower part of the seeding machine 3 is in contact with the field scene. The electromagnetic hydraulic valve 69 is controlled so that the detection value of the float sensor 84 becomes a predetermined value, and the ground height of the seeder 3 is maintained.

  In addition, it becomes the structure which can change the control sensitivity in the raising / lowering control of the seeding machine 3 according to the hardness of the field by changing the control target of the float sensor 84 by operating the sensitivity setting dial 85 provided on the left side of the control seat 13. ing. At the time of turning at the shore of the farm, the seeding machine 3 is raised by the operation of the sowing raising / lowering lever 18 to turn the machine body. Further, by operating the sowing lift lever 18, the feeding clutch in the feeding clutch case 62 can be operated to turn on and off the driving of the feeding device 5 of the seeding machine 3 described later.

Next, the configuration of the seeder will be specifically described based on the drawings.
First, as shown in the longitudinal sectional view of FIG. 5 and the AA line sectional view of FIG. 5, the feeding device 5 has a feeding roll 22 having a large number of seed grooves 21 formed on the outer periphery under the seed tank 4. It is arranged so as to be pivoted so as to be able to transmit to the side, and a starting end portion of the transfer pipe 6 for conveying the seed is provided below the shaft. As shown in FIG. 6, the seed groove 21 has a configuration in which the side storage tool 23 is slid right and left along the axis by the rotation adjustment operation of the rotation adjustment wheel 24, and the seed storage volume can be adjusted in size. It is said. The seed feeding is performed by the input gear 25.

And the brush 26 is provided in order to make the amount of seeds of the seed groove 21 uniform by contacting the surface of the feeding roll 22 and smoothing it.
The seed tank 4 is provided on a mounting frame 72 connected to the rear part of the traveling vehicle body 2 and is mounted as one of the constituent members of the seeder 3. In addition, a placing table 27 (FIG. 1) for placing a straw bag containing straw is provided on the front side of the seed tank 4, and an operator places the straw bag on the placing table 27. The soot in the soot bag can be supplied into the seed tank 4, and the seed (soybean) supply operation to the seed tank 4 can be easily performed. The mounting table 27 is supported from the air chamber 9 via a support frame 28. Further, since the mounting table 27 is provided above the upper end of the seed tank 4, seeds can be easily supplied to the seed tank 4 from the upper side.

  The structure in which the iron plate 26a is added to the side of the brush 26 before and after the brush 26 shown in FIG. 5 or behind the feeding roll 22 in the rotational direction can suppress wear and deformation of the brush 26 even when used for a long time. .

  Next, as shown in FIG. 4 to FIG. 6, the air chamber 9 is provided in a cylindrical shape and disposed laterally behind the lower side of the feeding device 5, and an electric wind turbine 8 is connected to one end, The other end is sealed with a lid so that the air generated can be stored. The transfer pipe 6 is provided with an opening at the conveyance start end thereof and communicated with the air chamber 9, and is supplied with the air (air blown) stored in a high-pressure state and supplied from above as described above. The seeds are configured to be conveyed by air.

  In this way, the transfer pipe 6 communicates with the air chamber 9 at its start end, extends its end portion toward the side close to the farm scene, and the sowing groover 7 provided at the sowing position. It is provided toward the upper seed supply port. The soaking grooving device 7 is attached to a float 19 that is provided on the ground contact surface and slides while leveling the topsoil, and is configured to spray and sow in a field scene that has been leveled as it advances. In addition, the said transfer pipe | tube 6 becomes a structure branched into 2 paths | routes in the middle part, and seeding | spreading for 2 strips from one feeding apparatus 5 is performed.

  And as shown in the top view of the installation part of the float 19 of FIG. 7, the covering soil board 29 is each arrange | positioned and arrange | positioned behind the seeding strip | strain which has provided the seeding groove | channel 7 for seeding, and it is hard and soft in the field scene. The angle can be changed via the interlocking wire 31 and the linkage 30 shown in FIG. 7 from the hardness / softness sensor 86 (FIG. 1), and an appropriate amount of soil covering is provided at the sowing position in the field regardless of the field's hardness. It can be configured. In addition, the said soft / soft sensor 86 becomes a structure which detects the softness of a farm field, when the rotation part 86a which rushes into soil goes up and down.

  A drainage groove 33 is provided between the plurality of floats 19, and the drainage groove 33 is a pivot shaft of an arm 35 attached to the front and upper left and right machine frame 34. The arm 35 is provided so as to be rotatable around a rotation tip of the arm 35. The drainage grooving device 33 is configured to form a drainage groove in a farm scene as the traveling vehicle body 2 moves forward. With this drainage grooving device 33, drainage grooves can be formed along the side of the sowing line simultaneously with the sowing operation, and drainage (falling water) and flooding can be performed quickly in the field after sowing. it can.

  Conventionally, the cultivation of paddy rice by direct sowing is usually practiced by storing water as it is after sowing and germinating and raising seedlings. In recent years, it has been announced that it is more effective for budding and raising seedlings to drop water and leave the soil in an oxidized state after sowing. According to the test results, it has been announced that it is useful to dry the soil after sowing so hard that it cracks, to prevent lodging after growth and to reduce bird damage.

  As shown in FIGS. 7 and 14, the drainage grooving device 33 is configured at a related position where the drainage groove is formed by following the wheel traces passed through the rear wheel 11. A rake 36 is provided between the drain groover 33 and the rear wheel 11 to level the wheel marks of the rear wheel 11 somewhat.

  The drainage groover 33 is composed of a plate bent in a V-shape when viewed from the back, and the drainage groover 33 and the weight of the arm 35 and a groover pressing spring 87 (FIG. 14) described later. The arm 35 is rotated downward, the lower end sinks into the soil in the field, and the machine body is advanced in this state, thereby forming the groove while pushing the soil left and right. . In addition, the drainage grooving device 33 is attached so that a lower end part may become lower with respect to a farm scene, so that it goes to the rear side.

  Further, in this embodiment, as shown in the plan view of FIG. 7, a plurality of attachment points of the float 19 are provided in the machine frame 34 of the sowing machine 3, and various changes can be made between the seeding lines on the field. . In FIG. 7, there are provided a plurality of mounting arms 100, 101, 102 of the float 19 for setting the spacing between the seeding lines to 30 cm, 26 cm, and 20 cm, respectively.

  Each pair of arms 100 indicated by solid white lines is an arm for mounting the float 19 used when the seeding interval is 30 cm, and each pair of arms 101 indicated by the black bold line is 26 cm in seeding interval. A pair of arms 102 indicated by dotted lines is an arm for mounting the float 19 used when the distance between the seeds is 20 cm. A spacer 103 is provided on an appropriate arm so that the attachment interval of the pair of arms 100 to 102 to the float 19 can be adjusted.

  FIG. 7 shows the attachment position of the float 19 using the pair of arms 100 when the seeding interval is 30 cm, and FIG. 8 shows the float 19 using the pair of arms 101 when the seeding interval is 26 cm. FIG. 9 shows the attachment position of the float 19 using a pair of arms 102 and the like when the seeding interval is 20 cm. In addition, when the space | interval of seeding | inoculation shown in FIG. 9 is 20 cm, the float 19 is attached to two side floats 19 and 19 of both ends using a pair of arms 102, but two center center floats 19 and 19 are attached. Then, there is only one mounting arm 102 indicated by a dotted line, and one of the pair of mounting arms 100 having an interval of 30 cm is used as the other mounting arm.

  Further, FIG. 10 shows a case where each pair of arms 100 indicated by solid white lines when attached to the six strips when the spacing between the seeding strips is 30 cm is attached to the float 19, and FIG. A case where each pair of arms 101 indicated by thick black lines when used for 6 strips when the spacing is 26 cm is attached to the float 19 is shown in FIG. A case where one of the pair of arms 102 indicated by a dotted line and one of each of the pair of arms 101 shown in the dotted line in the case of use for the strip is attached to the float 19 is shown.

In this embodiment, as shown in FIG. 14, the arm 35 of the left and right drainage groover 33, the wire 38 and the groover pressing spring 87 are connected to each other, and the field of the groover 33 is pressed through the arm 35. The controller 65a controls the operation of the drainage grooving vertical motor 105 so that the force (load) changes. Further, the control unit 65a controls the operation of the drainage groover vertical motor 105 so that the pressing force of the left and right drainage groover 33 against the soil changes according to the set value of the sensitivity setting dial 85. It has become.
The operator can observe the state of the field and change the control sensitivity of the up / down motor 105 by the sensitivity setting dial 85 to, for example, seven levels from 1 to 7.

  Therefore, when the soil in the field is hard in conjunction with the control sensitivity in the raising / lowering control of the seeding unit 3 by the sensitivity setting dial 85, the urging force of the groover pressing spring 87 becomes stronger, and the drainage groover 33 The controller 65a controls the operation of the drainage grooving vertical motor 105 so that the pressing force against the soil is increased. On the contrary, when it is detected that the soil in the field is soft, the control unit is configured so that the urging force of the groove-growing pressure spring 87 is weakened and the pressing force of the drainage groove-grooving device 33 to the soil is weakened. 65a controls the operation of the drainage grooving vertical motor 105.

As a result, a mechanism for changing the pressing force of the drainage groover 33 against the soil is provided in conjunction with the hardness of the soil in the field, so the drainage groover 33 regardless of the hardness of the soil in the field. The groove can be formed to a predetermined depth.
In the above description, the pressing force of the drainage grooving device 33 is changed in conjunction with the operation of the sensitivity setting dial 85. However, the degree of hardness of the field of the soft / soft sensor 86 is detected, and this detection result is displayed. It is good also as a structure which changes the pressing force of the drainage groover 33 of the drainage groover up-down motor 105 in conjunction.

  Further, instead of adjusting the pressing force (load) of the drainage groove device 33, the inclination angle (θ) of the groove device 33 with respect to the field scene shown in FIG. You can also The inclination angle (θ) is adjusted by adjusting the pressing force of the arm 35 by the drainage grooving motor 105.

  Thus, even if there is a difference in the hardness of the field by changing the inclination angle of the drainage grooving device 33, the depth of the groove in the field is kept constant regardless of the hardness of the field. To maintain sex.

  Conventionally, since the pressing force of the drainage grooving device 33 is constant, the grooving depth of the drainage grooving device 33 is shallow in a field where the soil is hard, and the drainage grooving device is used in a field where the soil is soft. There was a possibility that the groove 33 collapsed too deeply into the soil.

  Furthermore, by changing the inclination angle (θ) of the drainage grooving device 33 with respect to the field scene and the detection result of the field hardness / softness sensor 86 (rotating portion 86a), the depth of the field groove regardless of the field hardness. The configuration may be such that the thickness is constant, and in this case as well, the drainage from the groove can be maintained well.

As shown in the side view of the installation portion of the drainage groove device 33 to the float 19 in FIG. 15, a stand 106 integral with the arm 35 is rotatably attached to a turning shaft 35a provided on the machine frame 34. Unless drainage groover 33 is lowered unless 106 is accommodated from the one-dot chain line position to the solid line position, forgetting to lower groover 33 can be prevented.
Further, when the stand 106 and the drainage groover 33 are combined, the stand 106 can serve as a lever for adjusting the depth of the groove.

  Further, by rotating the arm 35 so as to stand up (the one-dot chain line position in FIG. 14), the drainage groove 33 can be levitated to the ground and housed in front of the rear end of the float 19. As a result, the drainage grooving device 33 does not protrude toward the rear side of the aircraft during transportation on the road, such as when the aircraft is loaded on a truck or the like, or when the aircraft is stored. It is possible to suppress breakage of each part including the groove forming device 33 and the rotation shaft 35a of the arm 35.

  When performing seeding work in paddy fields with good drainage or turning the aircraft at the shore, turn the arm 35 upward so that the drainage grooving device 33 floats to the ground so as not to create a drainage groove. The soil pushed away by the drainage groove and the generated water flow may be prevented from adversely affecting cultivation. In particular, if the drainage groove 33 is accommodated in conjunction with the turning of the machine body at the shore, it is possible to prevent the drainage groove 33 from colliding with the ridge.

  As shown in FIGS. 1 and 2, the drainage groover 33 can be attached and housed together with the arm 35 so that the arm 35 is in a standing posture on the mounting shaft 88 at the front end of the traveling vehicle body 2. Thereby, the arm 35 and the drainage grooving device 33 serve as weights, and the front-rear weight balance of the machine body to which the seeder 3 is mounted at the rear portion is improved.

  Further, as shown in FIG. 14, a stopper 40 that restricts the downward movement of the drainage groove 33 is provided at the rear end of the stay 39 that extends rearward from the left-right machine casing 34. Thereby, since the drainage groove device 33 does not move down more than necessary, it is possible to suppress breakage of each part including the drainage groove device 33, the rotation shaft 35a of the arm 35, and the like. Since the front end (front lower end) of the drainage groove 33 is located above the upper surface of the rear portion of the float 19 at the lower limit position of the drainage groover 33 regulated by the stopper 40, It is possible to prevent the muddy flow flowing on the upper surface from passing through the upper side of the drainage groove device 33 so that the groove made by the drainage groove device 33 is not backfilled with the mud flow. It should be noted that the draining groover 33 and the sowing groover 7 are in a relative position where drainage grooves are formed substantially parallel to the side of the sowing line after the sowing groover 7 has passed. What is necessary is just to arrange and comprise.

  The flooded direct sowing machine 1 is provided with a fertilizer applicator 45, which is used for fertilizer application attached to a fertilizer tank 46, a feeding device 47, a fertilizer hose 48 and a float 19 provided at the rear of the traveling vehicle body 2. The grooving device 49, the electric wind turbine 50 and the air chamber 51 are provided in the same manner as the seeder 3. The fertilizer applicator 45 is configured to apply fertilizer to the side of the sowing to the field, and similarly to the seeding machine 3, the fertilizer 45 is applied to the field at the same time in a streak manner for eight strips.

  Therefore, as shown in FIG. 7, the float 19 is provided with the sowing groover 7 and the fertilizer groover 49 at positions close to each other, and the fertilizer groover 49 in front of the sowing groover 7. Is arranged. And these groove-growers 7 and 49 are provided with the discharge port of the seed or the fertilizer from the back to the back.

  Since there is a gap between the seed transfer pipe 6 and the sowing groover 7 in this way, the pressure wind blown backward from the fertilizer groover 49 on the front side, and the muddy water blown off by the pressure wind are Acting on the gap, seeds are not properly supplied from the seed transfer pipe 6 to the sowing groover 7, or in some cases the muddy water enters the sowing groover 7 so that the seeds are seeded. 7 may become clogged easily, and sowing accuracy may be reduced. In particular, the discharge amount of the granular material from the fertilizer grooving device 49 is larger than the discharge amount of the granular material from the grooving device 7 for seeding, and the fertilizer hose 48 is longer than the front and rear of the seed transfer pipe 6. Therefore, since it is set so that strong pressure air is supplied to the fertilizer hose 48, the pressure air blown from the fertilizer groove 49 is extremely strong, and it is easy to induce a decrease in the sowing accuracy.

  In addition, as shown in a side view of the periphery of the fertilizer applicator 49 of the float 19 in FIG. 13, the left-right cross section fixed to the bottom surface of the float 19 has a V-shaped fertilizer for the fertilizer applicator 49. Is provided with a fertilizer guide 108 connected to the fertilizer hose 48. The fertilizer application guide 108 is formed into a U-shape with a cross-sectional plan view opened backward by a metal plate that can be energized, and is fixed to each float 19 one by one.

  Further, a cover 109 formed of an insulating material such as plastic is attached so as to close the inclined opening on the rear side of the fertilizer application guide 108. An upper end portion of the cover 109 is rotatably locked to the fertilizer application guide 108, and a lower end portion thereof is attached to the fertilizer application guide 108 so as to be freely disengaged. A negative electrode plate 110 is attached to the inner wall surface of the cover 109. A plus lead wire (not shown) is screwed to the fertilizer application guide 108, and the fertilizer guide 108 itself becomes a plus electrode. The fertilization guide 108 itself serving as the positive electrode and the electrode plate 110 serving as the negative electrode have a fertilizer clogging sensor function for detecting fertilizer clogging in the fertilization guide 108.

  When the lower end portion of the cover 109 is rotated so as to move backward, the rear side of the fertilizer guide 108 can be opened, so that it is easy to remove mud or the like when the fertilizer guide 108 is clogged. In addition, the presence of the cover 109 makes it difficult for mud to enter the fertilizer application guide 108 when moving backward in a grounded state.

  At this time, as shown in FIG. 13, the upper surface of the fertilizer guide 108 provided with the cover 109 is disposed obliquely forward with respect to the ground, so that the cover 109 can be easily opened and closed and the inside of the fertilizer guide 108 can be easily checked. .

  The seeder 3 configured in this manner is placed in a field that has been submerged after the leveling work, and the fertilizer tank 46 is filled with fertilizer, and the seed tank 4 is filled with seeds and advanced to start the seeding work. To do. Then, the seeds in the seed tank 4 reach the lower rotating feed roll 22 as shown in FIG. 5, are respectively supplied to the seed grooves 21 on the outer periphery of the feed roll 22, and are sent in the accumulation rotation direction.

  At that time, the seed in the seed groove 21 reaches the brush 26 on the lower rotation side, the surface is leveled and becomes a fixed amount, and the feed roll 22 rotates to the conveyance start end portion of the lower transfer pipe 6. Fall. At that time, the air chamber 9 stores the compressed air generated by the wind turbine 8 and flows into the communicating transfer pipes 6.

  In this way, the seeds are air conveyed in the transfer pipe 6 by the compressed air blown from the air chamber 9, reach the seeding grooving device 7 on the tip side, and enter the field after being leveled by the float 19. Erupting and sowing. Then, the covering soil plate 29 scrapes the top soil, covers the seeding groove where the seeds are sown, and completes the seeding operation.

  On the other hand, when sowing seed pods or the like in a direct sowing machine, the culper coating 111 can be used as shown in FIG. The culper coating 111 is, for example, a material for filling a large number of seed pods in a cylindrical tube and sequentially planting the seed pods in the field.

  Therefore, by looking over the whole after planting the Calper coating 111 on the field, it is possible to easily confirm the place where the seed vine has been forgotten sowing, and the Calper coating 111 serves as a mark of the sowing position, so that spot seeding can be performed more accurately. It can be carried out.

  When the shape of the culper coating 111 is made cylindrical, the seed pod is coated toward the lower end as shown in FIG. 17B, so that the seeding depth in the field can be made uniform. If the lower end of the culper coating 111 is buried in the soil, it is not necessary to cover the soil, so the cost can be reduced.

When seeding with the calper coating 111, as shown in FIG. 17C, when the shape of the coating is conical and the calper coating 111 is planted in the field with the conical tip facing downward, the calper coating 111 Serves as a mark of the sowing position, so that spotting can be performed more accurately. Further, since the culper coating 111 has a conical shape with the tip pointed downward, the culper coating 111 has an advantage that it is easy to be stabbed in a farm field and is not easily collapsed. In addition, when making the shape of the culper coating 111 into a conical shape, it is desirable to coat the seed buds close to the apex.
Thus, the seeding depth in the field can be made uniform, and if the apex of the conical culper coating 111 is buried in the soil, there is no need for soil covering, so the cost can be reduced.

  As a device for directly seeding the calper coating 111, a pair of rollers 112 provided with a rotating shaft in the horizontal direction as shown in FIG. 18 are arranged adjacent to each other, and the pair of rollers 112 are rotated at a high speed inside each other. A configuration in which the calper coating 111 is supplied from above, and the calper coating 111 in contact with the pair of rollers 112 is accelerated by the rotational force of the rollers 112 and can be driven into the field.

  Even if the coating seed is a single load or the heavy side (the side containing the seed) is on the top, the Calper coating sandwiched between the pair of rollers 112 by the frictional force of the rotating roller 112 While 111 is moving at high speed, it can be sown with the side with heavy seeds facing down, and further, since no soil covering is required, the cost can be reduced.

  As described above, the sowing machine 3 performs the sowing work on the field scene flooded as the traveling vehicle body 2 moves forward. At the same time, the draining grooving device 33 attached to the machine frame 34 is used as the sowing grooving device. Advancing while forming a drainage groove in a substantially parallel manner along the side of the sowing line sowed by 7. In this case, the drainage grooving device 33 grooving the drainage groove while moving forward on the trace that the rear wheel 11 has passed, so the soil resistance is relatively small, and the grooving device 33 can be grooved with a small amount of horsepower.

  The drainage groove formed by the drainage grooving device 33 is grooved with a scissors or the like at one end to the water intake in the field and the other end to the drainage in the field so that the water can flow easily. It is important to perform post-processing so that the water can be connected and drained easily. In general, it is the minimum requirement for the paddy field to level the soil surface sufficiently evenly, but this makes it possible to quickly drain and enter the paddy field.

  At the side end (right rear end) of the fertilizer tank 46 of the fertilizer applicator 45, a lift switch 90 for rotating the lifting link 14 upward and a mechanism for rotating the lifting link 14 downward. A switch box 92 (FIG. 1) provided with a lowering switch 91 is provided. The ascending switch 90 and the descending switch 91 are push button type switches and are provided toward the right side of the machine body, and are near the end (rear end) of the traveling vehicle body 2 where the elevating link 14 and the hitch 16 are disposed. Placed in. When the raising switch 90 is pushed, a signal from the raising switch 90 is input to the control unit 65a in the control box 65, and is output from the control unit 65a to the electromagnetic hydraulic valve 69 so as to rotate the lifting link 14 upward. The

  Similarly, when the lowering switch 91 is pushed, a signal from the lowering switch 91 is input to the control unit 65a and is output from the control unit 65a to the electromagnetic hydraulic valve 69 so as to rotate the lifting link 14 downward. . In addition, if the pushing operation of the raising switch 90 and the lowering switch 91 is within a predetermined time (1 second), the lifting link 14 is rotated by a predetermined amount regardless of the pushing operation time. In addition, when the pushing operation of the raising switch 90 and the lowering switch 91 exceeds a predetermined time (1 second), the electromagnetic hydraulic valve 69 is switched only during the pushing operation to continuously rotate the lifting link 14. It has become.

As described above, the traveling vehicle body 2 is provided with the lifting link 14 that is turned up and down by the hydraulic cylinder 17 serving as the lifting actuator at the rear end, and the seeder 3 can be attached to and detached from the front end (rear end) of the lifting link 14. A lifting switch 90 for rotating the lifting link 14 upward and a lowering switch 91 for rotating the lifting link 14 in the vicinity of the rear end where the lifting link 14 is disposed. The control means for rotating the lifting link 14 by a predetermined amount each time the raising switch 90 or the lowering switch 91 is operated, and the lifting link 14 is continuously provided only while the raising switch 90 or the lowering switch 91 is operated. And a control device for rotating the control device.

  Accordingly, the seeding machine 3 is mounted via the detachable hitch 16 provided at the tip of the lifting link 14, and the seeding machine 3 is moved up and down by rotating the lifting link 14 up and down by driving the hydraulic cylinder 17 as necessary. Thus, the work can be performed while traveling, and various kinds of work can be performed by changing the type of the work machine mounted via the detachable hitch 16. When the seeder 3 is attached / detached, the operator operates the raising switch 90 and the lowering switch 91 in the vicinity of the lifting / lowering link 14 and further the attaching / detaching hitch 16, so that the lifting / lowering link 14 and the hitch 16 and the seeder 3 are further attached. Since the positional relationship with the frame 72 can be easily visually recognized from the side (right side) of the machine body, the elevating link 14 can be easily rotated to a desired height, and the attachment / detachment state of the seeding machine 3 is reliably determined. The seeding machine 3 can be attached and detached safely. Further, when it is desired to rotate the lifting link 14 by a minute amount in the attaching / detaching operation, the lifting link 14 is rotated by a predetermined amount every time when the lifting switch 90 or the lowering switch 91 is operated. It can be easily rotated to the height.

  Moreover, when the positional relationship between the lifting link 14 and the seeding machine 3 is greatly different and the lifting link 14 needs to be largely rotated in the attaching / detaching operation, the lifting link 14 is continuously operated by operating the ascending switch 90 or the descending switch 91. Therefore, the lifting link 14 can be quickly rotated to the height of the seeding machine 3 to improve the workability of the attachment / detachment work. At this time, the hitch 16 and the attachment frame 72 are connected to each other. Even if the operator leaves the raising switch 90 or the lowering switch 91 in order to avoid danger due to inadequate movement of the traveling vehicle body 2, the seeding machine 3, etc., the raising switch 90 or the lowering switch 91 is not operated. As long as the lifting link 14 does not rotate, it is safe.

  Further, since the elevating link 14 is rotated by a simple push button type operation tool such as the elevating switch 90 and the lowering switch 91, the elevating switch 90 and the lowering switch 91 are rotated during the rotation of the elevating link 14 in the attaching / detaching operation. It is possible to work while intensively looking at the lifting and lowering link 14, the detachable hitch 16, the mounting frame 72, and the seeding machine 3 that rotate without looking at them, and inadvertent accidents such as dropping the seeding machine 3 in advance. It can be prevented and work can be done safely.

  Further, on the right side of the lifting link 14, a connector 94 (FIG. 2) for electric wiring to an electrical component (such as an electric wind turbine 8) on the seeder 3 side, a connecting transmission shaft 64 (FIG. 2), and a fixture. 75 (FIG. 3) cylinder (gripping part) 75a is arranged. Accordingly, the electrical wiring connector 94, the connecting transmission shaft 64, and the holding portion 75a of the fixture 75 are arranged on the same side (right side) in the left-right direction of the machine body as the ascending switch 90 and the descending switch 91 shown in FIG. When the seeder 3 is attached / detached, the operator attaches / detaches the electrical wiring connector 94 and the connecting transmission shaft 64 shown in FIG. A rotation operation can be performed, and attachment / detachment work of the seeder 3 is facilitated.

  In addition, when there is an operation wire connected from the traveling vehicle body 2 to the seeder 3 side, the operation wire can be divided near the lifting link 14 and can be routed on the right side of the lifting link 14 as described above. The attachment / detachment work of the seeding machine 3 is facilitated. Further, a muffler 95 (FIG. 1) for exhausting the engine 56 is disposed on the left side of the lift link 14, that is, on the opposite side (left side) of the ascending switch 90 and the descending switch 91 in the left-right direction of the body. It is possible to prevent the worker who performs the work on the right side from sucking the exhaust from the muffler 95 or to transmit the heat from the muffler 95 to the worker, and to perform the attachment and detachment work safely and comfortably.

  When the raising switch 90 or the lowering switch 91 is operated, the raising / lowering link 14 is rotated or rotated at a slower speed than when the seeding raising / lowering lever 18 is operated, for example, by making the electromagnetic hydraulic valve 69 pulse-controlled. It can comprise so that the seeder 3 may raise / lower. Thereby, the attaching / detaching operation of the seeder 3 can be easily performed, and an unexpected accident can be prevented in advance and the operation can be performed safely. Further, when the raising switch 90 or the lowering switch 91 is operated with the electrical wiring connector 94 (FIG. 2) removed, it is determined that the seeding machine 3 is being attached / detached, and the raising / lowering link 14 rotates at a slow speed. Alternatively, the seeder 3 may be moved up and down. Further, when it is detected by the work machine attachment / detachment sensor (fixing device docking switch 81 and lift link sensor 82) that the seeding machine 3 is completely attached, the voice output device 96 (FIG. 16) is activated via the control unit 65a. It can be configured. Thereby, an operator can recognize the mounting state of the seeding machine 3 easily, and the safety | security of attachment / detachment work improves.

  Further, the control unit 65a of the traveling vehicle body 2 detects that the airframe is tilted by the tilt sensor 68 (FIG. 1) or the sub-shift lever 67 by the sub-shift lever sensor 67a can travel other than neutral. That the control unit 65a determines that the electrical wiring connector 94 is connected, or that the engine 56 (motor) is being driven by the engine speed sensor 56a. When it is detected, or when it is detected that the sowing lift lever 18 (FIG. 2) is operated by the sowing lift lever sensor 18a to a position for driving the sowing machine 3 or a position for raising and lowering the sowing machine 3, the raising switch 90 and Even if the lowering switch 91 is operated, an output to the electromagnetic hydraulic valve 69 (FIG. 16) is prohibited, and a checking means for checking that the lifting link 14 is rotated is provided. .

  Thereby, when there is a possibility that the connecting transmission shaft 64 that the traveling vehicle body 2 moves or attaches or detaches or the sowing machine 3 moves up and down unexpectedly, the attaching and detaching work of the sowing machine 3 can be restrained, and the operator can control the sowing machine. 3 can be prevented from being caught in the airframe including 3 and the connecting transmission shaft 64 to be driven, and danger can be avoided. Further, it is possible to prevent the electrical wiring from being damaged due to the attaching / detaching operation of the seeding machine 3 while the electrical wiring connector 94 is connected.

  In addition, an identification sensor such as a barcode is provided on the side of the hitch 16 (FIGS. 1 and 2) and an identification element such as a bar code is provided on the mounting frame 72 (FIG. 1). It is configured so that the type of can be discriminated. This makes it possible to automatically correct information from sensors on the work machine side for various work machines and use it for control, and it is necessary for the operator to re-set the initial setting values for each sensor when the work machine is attached or detached. There is no.

  In addition, as an example of the sensor, in addition to the float sensor 84 used for the raising / lowering control of the seeding machine 3, the left / right inclination angle of the working machine for use in the left / right rolling control of the seeding machine 3 by the rolling cylinder 98 (FIG. 1). A working machine left / right tilt angle sensor 99 (FIG. 1) or the like is conceivable.

  In addition, even when the same type of sensor is used in different work machines, the above-described configuration is useful because there are individual differences in the sensors included in each work machine. If the sensor is not initially set in the attached work machine, the voice output device 96 (FIG. 16) may be operated to notify the worker. In addition, if a barcode is used as an identification element, it can be made to correspond to many working machines, and the versatility of the traveling vehicle body 2 is enhanced.

  By the way, the direct sowing machine 1 in the embodiment of the present invention is provided with a detachable seeding machine 3 on the rear side of the traveling vehicle body 2, and a configuration in which a fertilizer machine 45 is provided on the rear side of the traveling vehicle body 2 on the front side of the seeding machine 3. However, the fertilizer machine 45 is detachably provided on the rear side of the traveling vehicle body 2 and the seeding machine 3 is provided on the front side of the fertilizer machine 45 at the rear portion of the traveling vehicle body 2, and the arrangement of the seeder 3 and the fertilizer machine 45 is arranged. It is good also as a structure which replaced.

  At this time, the fertilizer hose 48 of the fertilizer machine 45 having a larger discharge amount (feeding amount) of the granular material is shorter in the front-rear direction than the seed transfer pipe 6 of the seeder 3 and becomes closer to the vertical direction. The fertilizer with a large discharge amount (feeding amount) is less likely to be clogged, and workability can be improved.

  In the multi-purpose rice transplanter with a work machine in FIG. 19, as shown in the side view of the main part of the float attachment part, the rotor part 120 and the float part 121 are attached to the main body side of the traveling vehicle in the multi-purpose rice transplanter with the work machine. It can also be configured.

  With the configuration shown in FIG. 19, the work machine portion including the seedling planting device can be freely attached to and detached from the main body side, and instead of the seedling planting device 122 which is the work machine, direct seeding is performed as the seeding machine 3. When the device is installed, it becomes a direct seeder instead of a rice transplanter. Moreover, also when it is set as the direct seeding machine using the seeding machine 3 which consists of a direct seeding apparatus, the rotor part 120 and the float part 121 can be used as it is.

  As shown in the plan sectional view of FIG. 20A and the sectional view taken along the line AA of FIG. 20A of FIG. 20B as the configuration of the fertilizer feeding device 47 in the direct seeding machine shown in FIG. It can be configured to feed out various types of fertilizers. Moreover, since the feeding place differs depending on the type of the material fed from the fertilizer feeding device 47 as the fertilizer hose 48 provided at the outlet of the feeding device 47, the hose 48 attached to the outlet portion of the fertilizer feeding device 47 is changed depending on the type.

  The fertilizer feeding device 47 is a two-chamber type feeding device 47a, 47b that can store two types of feeding materials, and the outlet of the feeding material from each of the feeding devices 47a, 47b can be easily changed to the hose 48 attached thereto. The funnel tip is tapered. FIG. 20 (b) shows the shape of a hose when separate hoses 48a and 48b corresponding to two types of feeds are attached, and FIG. 20 (c) shows one type of feed from the two feeding devices 47a and 47b. The hose attachment part top view in the case of attaching the single hose 48 corresponding to is shown.

  As shown in FIG. 21, the height of the link part when the link part is docked when the work machine is connected to the traveling vehicle main body varies depending on the type of the work machine to be connected. Therefore, when it is detected that the work implement has reached the optimum docking position of each work implement set by the lift link sensor 82, the voice output device 96 sounds by pressing the work implement determination switch 93.

  For example, by changing the form of the buzzer so that it beeps with a mat rice transplanter, with a beep on a spot seeder, and with a beep on a row seeder, it can This makes it easy to dock things, and can be done safely and reliably.

  Furthermore, it may be configured such that the procedure and notes are played by voice when the work machine is docked. At this time, when the work implement determination switch 93 is pressed, a sound is played and at the same time, the link portion is unlocked.

  A left and right line drawing marker 115 is attached to the traveling machine body of the present embodiment, and the marker 115 is pivotally attached to the tip of a marker support frame 116 whose base is fixed to the traveling machine body. Then, when the left and right line drawing marker 115 travels back and forth in the field and performs the sowing operation, the line drawing marker 115 is slid on the mud surface on the unseeded side during the work traveling, and the center line of the next stroke work traveling path is set. It draws.

In addition, the center mascot 117 provided at the center of the front end of the traveling machine body can be arranged so that the center mascot 117 can be sown and traveled along the center line drawn by the drawing marker 115 in the previous stroke. The sowing work can be carried out at a predetermined interval with respect to the sowing line.
Although the embodiment of the present invention has been described with respect to a streaker that performs fertilization and sowing in a streak pattern in a field, it is a point seeder that intermittently fertilizes or sows by discharging powder particles at predetermined intervals in the field. There may be.

  According to the present invention, it is possible to sow between a plurality of strips with a single sowing machine 3, enabling farm work at low cost and high availability.

It is a side view which shows the flooded direct seeder of the Example of this invention. It is a top view which shows the flooded direct seeder of the Example of this invention. 3 (a) is a cross-sectional view showing the steel ball and the restriction groove of the attachment portion of the working machine of the flooded direct seeding machine of FIG. 1, FIG. 3 (b) is a view showing the upper and lower restriction grooves, and FIG. FIG. 3D is a side view showing a state in which the hitch and the attachment frame are connected to each other. It is a rear view which shows a part of seeder of the flooded direct seeder of FIG. It is a cross-sectional side view which shows the seed tank and feeding apparatus of the seeder of FIG. It is a cross-sectional rear view which shows the feeding apparatus of the seeder of FIG. It is a top view explaining the attachment structure which can change between the 8 strips of the seeding part to the float of the flooded direct seeding machine of FIG. It is a top view explaining the attachment structure which can change between the 8 strips of the seeding part to the float of the flooded direct seeding machine of FIG. It is a top view explaining the attachment structure which can change between the 8 strips of the seeding part to the float of the flooded direct seeding machine of FIG. It is a top view explaining the attachment structure which can change between 6 strips of the seeding part to the float of the flooded direct seeding machine of FIG. It is a top view explaining the attachment structure which can change between 6 strips of the seeding part to the float of the flooded direct seeding machine of FIG. It is a top view explaining the attachment structure which can change between 6 strips of the seeding part to the float of the flooded direct seeding machine of FIG. It is a side view which shows the structure of the clogging detection part of the fertilizer exit part of the fertilization guide to the float of the flooded direct seeder of FIG. FIG. 14 is a side view showing an attachment part of the drainage groove device to the float of the flooded direct seeder of FIG. It is a side view which shows the attachment part of the ditch | grower for drainage to the float of the direct drowning machine of FIG. It is a control block diagram in the flooded direct seeder of FIG. 17 (a) and 17 (b) are diagrams illustrating a seed planting structure using the calper coating in the flooded direct seeder of FIG. 1, and FIG. 17 (c) is a diagram illustrating an example of a conical calper coating. It is a block diagram which drives a culper coating into a field using the roller in the flooded direct seeder of FIG. It is a principal part side view of the working device which can replace the working machine part of a rice transplanter with the seeding machine of a direct sowing machine. 20 (a) is a plan sectional view of the fertilizer feeding device, FIG. 20 (b) is a sectional view taken along the line AA in FIG. 20 (a), and FIG. 20 (c) is one type of feed from two feeding devices. It is a top view of the hose attachment part in the case of attaching a single hose correspondingly. It is a flowchart for alerting | reporting with an audio | voice output apparatus when it comes to the docking optimal position of each work machine in the case of connecting a work machine with the traveling vehicle main body of the flooded direct seeding machine of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Submerged direct sowing machine 2 Traveling vehicle body 3 Seeding machine 4 Seed tank 5 Feeding device 6 Transfer pipe 7 Grower for sowing 8 Wind turbine 9 Air chamber 10 Front wheel 11 Rear wheel 12 Engine room 13 Control seat 14 Lifting link 14a Upper side Link 14b Lower link 15 Rear machine frame 16 Hitch 17 Hydraulic cylinder 18 Seeding lift lever 18a Seeding lift lever sensor 19 Float 21 Seed groove 22 Feeding roll 23 Adjuster 24 Rotation adjusting wheel 25 Input gear 26 Brush 26a Iron plate 27 Mounting base 28 Support Frame 29 Covering plate 30 Continuous 31 Linking wire 33 Drainage groove 34 Machine frame 35 Arm 35a Arm rotation shaft 36 Rake 38 Wire 39 Stay 40 Stopper 45 Fertilizer 46 Fertilizer tank 47 Feeding device 48 Fertilizer hose 49 Fertilizer application Grooving device 50 Wind turbine wheel 51 Air chamber 5 5 Steering handle 56 Engine 56a Engine speed sensor 57 Engine output belt 58 Relay shaft 59 Hydraulic pump 60 Main transmission 61 Transmission case 62 Feeding clutch case 63 First transmission shaft 64 Linked transmission shaft 65 Control box 65a Control section 66 Main transmission lever 67 Sub-shift lever 67a Sub-shift lever sensor 68 Tilt sensor 69 Electrohydraulic valve 70 Upper locking groove 71 Lower locking groove 72 Mounting frame 73 Upper shaft 74 Lower shaft 75 Fixing tool 75a Lock on / off cylinder (fixed gripping portion)
76 Boss 77 Restriction groove 78 Spring 79 Steel ball 80 Hole 81 Fixture switch (docking switch)
82 Lower shaft sensor (elevating link sensor)
84 Float sensor 85 Sensitivity setting dial 86 Hard / soft sensor 86a Rotating part 87 Groove press spring 88 Mounting shaft 89 Shielding plate 90 Lifting switch 91 Lowering switch 92 Switch box 93 Work machine determination switch 94 Connector 95 Muffler 96 Audio output device 98 Rolling cylinder 99 Working machine left and right tilt angle sensors 100 to 102 Float mounting arm 103 Spacer 105 Drainage groove vertical motor 106 Stand 108 Fertilizer guide 109 Cover 110 Negative electrode plate 111 Calper coating 112 Roller 115 Drawing marker 116 Marker support frame 117 Center mascot 120 rotor part 121 float part 122 seedling planting device

Claims (4)

An elevating link (14) is provided at the rear end of the traveling vehicle body (2), and the work machine can be attached and detached to selectively attach a plurality of kinds of work machines including a seedling transplanter and a seeder (3). In the multipurpose machine in which the hitch (16) is provided at the tip of the lift link (14), the seeder (3) has a plurality of floats (19) for leveling the field, and each float mounting structure (100 , 101, 102), and a structure in which a soaking groover (7) is attached to each float (19), and a plurality of types of float mounting structures (100, 101) corresponding to a plurality of types of seeding strips are provided. , 102) are provided in different positions in the left-right direction, and the position in the left-right direction of the float (19) can be changed by selecting the float mounting structure (100, 101, 102) to which the float (19) is attached. With configuration ,
Among the plurality of float mounting structures (100, 101, 102), a part of the float mounting structures (100, 101) can be shared as another type of float mounting structure when different sowing lines are used. Multipurpose machine placed in A float (19) is attached from a part of the float mounting structure (100, 101) via a spacer (103), and the float of the other part when different floating sowing is performed between the part of the float mounting structure (100, 101). The multipurpose machine according to claim 1, wherein the multipurpose machine is configured to be shared as a mounting structure . A float sensor (84) for detecting the front / rear inclination angle of the float (19) is provided, and the seeding machine (3) is controlled to move up and down so that the detection value of the float sensor (84) becomes a predetermined value. For drainage, which is provided with a sensitivity adjustment dial (85) for changing the control sensitivity in raising and lowering control, a softness sensor (86) for entering the soil and detecting the softness of the field, and forming a drainage groove on the side of the sowing line The groover (33) is provided at the rotating tip of the arm (35) that rotates between the plurality of floats (19) and vertically, and the arm (35) is urged to rotate. A drainage grooving vertical motor (105) that changes the pressing load of the drainage grooving device (33) to the field by operating the grooving device pressing spring (87) is provided. Installation, sowing section with sensitivity adjustment dial (85) 3) A control unit (65a) for controlling the operation of the drainage grooving motor (105) in conjunction with the control sensitivity in the lifting control or the detection result of the field softness by the softness sensor (86) is provided, The multipurpose machine according to claim 1 or 2, further comprising a stand (106) integrated with the arm (35) . The seeding machine (3) includes a seed tank (4), a feeding device (5) provided on the lower side of the seed tank (4), and a seed grooving device (7) from below the feeding device (5). A feeding rod (6) extending toward the upper seed supply port is provided, and the feeding device (5) is in contact with the feeding roll (22) having a large number of seed grooves (21) and the surface of the feeding roll (22). The iron plate (26a) that suppresses the deformation of the brush (26) is provided on the side surface of the brush (26) on the lower side in the rotation direction of the feeding roll (22) , and the rotor portion (120) is attached and detached. The multipurpose machine according to any one of claims 1 to 3, wherein the multipurpose machine is provided closer to the traveling vehicle body (2) than the hitch (16) .

Images