JP5029527B2 - Ride type seedling planting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type seedling transplanter facilitating linear machine travel in the next process by clearly marking on a surface of paddy field with markers for line-drawing respectively mounted on a right and left side, in the riding type seedling transplanter provided with a seedling transplanting device installed on the rear part of the traveling vehicle through a linking device for lift up and down, in which the seedling transplanting device is composed of a seedling pad, a seedling transplanting tool and a float, and not requiring a large longitudinal space in housing the marker for line-drawing and shortening the longitudinal length of the machine. <P>SOLUTION: Line-drawing markers (80) provided with a rigid marker tube (80a), an elastic marker arm (80b) installed on the tip of the marker tube (80a) and a line-drawing tool (80b2) mounted on the tip of the marker arm (80b) are respectively mounted on the right and left of the machine, and the marker arm (80b) is rotatably installed around a turning fulcrum (80b1) adjacent to the top end of the seedling pad (43). <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a riding seedling transplanter such as a riding rice transplanter, a riding vegetable transplanter, and a riding grass transplanter in which various seedling planting devices are mounted on a traveling vehicle such as a tractor.

  Conventionally, in a riding seedling planting machine equipped with a float at the rear of the traveling vehicle via an elevating link device and equipped with a seedling planting device, the seedling planting device is lowered to a position where the float touches the field scene when planting seedlings When the aircraft is turning, the raising / lowering link device of the seedling planting device is moved up to a high position where the float is not grounded, and the aircraft is turned.

When this seedling planting device is not used temporarily except when the aircraft is turning, or when the seedling planting machine is stored in a warehouse, it is necessary to prevent the seedling planting tool from being damaged by floating the seedling planting device from the ground. is there. As a member for this purpose, Japanese Patent Application Laid-Open No. 2000-60226 or the like attaches a stand for floating the seedling planting device from the ground (see Patent Document 1).
JP 2000-60226 A

In a riding type seedling planter in which a seedling planting device is mounted on the rear part of a traveling vehicle via a lifting link device, and the seedling planting device is configured to include a seedling mount, a seedling planting tool, and a float, It is an object of the present invention to provide a clear mark on the mud surface of a farm field by using a line-drawing marker provided to each so that the airframe can easily travel straight in the next process. Another object of the present invention is to concentrate levers for planting seedlings so that the strains can be adjusted while sitting in the cockpit.

In order to solve the above problems, the following technical measures were taken.
That is, in the invention according to claim 1, the seedling planting device (3) is attached to the rear portion of the traveling vehicle (1) via the lifting link device (2), and the seedling planting device (3) is mounted on the seedling mounting platform (3). 43), a seedling planting device (44), and a floating seedling planting machine configured with a float. An inter-stock lever (68) that adjusts the speed between the plants by changing the speed of the planting tool and the heel clutch lever (67) are arranged side by side, and the HST lever (40) is positioned adjacent to the heel clutch lever (67). , The rotation fulcrum of the hook clutch lever (67) and the HST lever (40) are coaxial, the hook clutch lever guide (67a) and the HST lever guide (40a) are provided on the same guide plate (69), and the HST lever (40) and cockpit ( 0)), and a resistance plate (94) that gives rotational resistance to the drawing ring body (90b) is provided between the drawing ring body (90b) of the drawing marker and the marker arm (90a). Center float (45 ') for leveling the seedling planting position for two strips, side float (46') for leveling the seedling planting position for two strips, center float (45 ') and side float (46 ') is composed of a single-row float (47) for leveling the seedling planting position for one row, and the bottom surface of the single-row float (47) is higher than the bottom surface of the side float (46'). This was a riding type seedling planting machine .

According to the first aspect of the present invention, the inter-strain lever (68) and the heel clutch lever (67) related to seedling planting can be concentrated on the hand, and the strain can be adjusted while sitting on the cockpit (20). Further , since the saddle clutch lever guide (67a) and the HST lever guide (40a) are provided on the same guide plate (69), the cost can be reduced by integrating the parts, and the saddle clutch lever guide (67a) and the HST lever guide. The space of (40a) can be reduced. Moreover , the rotation of the drawing ring body (90b) can be changed by the resistance plate (94) to form a high muddy mountain, and when the drawing ring body (90b) is raised, the drawing ring body (90b) is raised by inertia. ) Can be prevented from rotating and mud scattering to the operator. Moreover, it becomes difficult to form the float trace of the small one-piece float (47) which is easy to move up and down in the field scene.

An eight-row planting type rice transplanter as an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a left side view of the riding rice transplanter, FIG. 2 is a plan view of the riding rice transplanter, and FIG. 3 is a power transmission mechanism diagram of the riding rice transplanter. The traveling vehicle 1 is configured as a riding fertilizer rice transplanter as a whole by mounting a rice planting device 3 which is a kind of seedling planting device with a lifting link device 2 at the rear portion thereof and a fertilizer application device 4. The traveling vehicle 1 is a four-wheel drive vehicle having a pair of left and right front wheels 6 and 6 and rear wheels 7 and 7 as drive wheels.

In this specification, the left and right directions in the forward direction of the vehicle 1 are referred to as left and right, respectively, the forward direction of the vehicle 1 is referred to as front, and the reverse direction is referred to as rear.
A transmission case 11 is fixed to the front of the left and right main frames 10 and 10 with bolts, and a water-cooled engine 12 is mounted on the left and right main frames 10 and 10. A hydraulic pump is mounted on the rear upper surface of the transmission case 11. 13 is integrally assembled, and a steering post 14 protrudes upward from the front portion of the transmission case 11.

  A steering handle 16 and an operation panel 17 are provided at the upper end of the steering post 14. A fuselage cover 19 in which steps are integrally formed from a synthetic resin serving as a control floor is attached to the upper part of the fuselage, and a cockpit seat 20 is installed above the engine 12 (the cockpit seat 20 is a fuselage cover). 19 is attached to the rear upper surface). The front wheels 6, 6 are pivotally supported by front wheel support cases 22, 22 provided on the left and right sides of the transmission case 11 so as to be able to turn. The rear wheels 7 and 7 are pivotally supported by rear wheel support cases 24 and 24 that are integrally attached to the left and right ends of the rolling rod 23. The rolling rod 23 is rotatably supported in a plane perpendicular to the traveling direction by a rolling shaft 25 projecting from a horizontal frame 10a connecting the rear ends of the left and right main frames 10, 10.

  Also, a lower part of a U-shaped front connection frame 10b connecting the two is welded and fixed to the front parts of the left and right main frames 10, 10, and a front horizontal pipe extending in the left-right direction on the upper part of the front connection frame 10b. The frame 10c is fixed by welding, and further, a support plate 10d made of an L-shaped steel plate is fixed by welding to the front horizontal pipe frame 10c upward. And the front part of the cover support pipe 10e ... provided by two right and left on the upper part of the support plate 10d ... is being fixed with the volt | bolt.

  3, each rear portion of the cover support pipe 10e... Is integrally welded and fixed by a rear horizontal pipe frame 10f extending in the left-right direction. The rear horizontal pipe frame 10f is directed forward from the upper portions of the left and right vertical frames 10g and 10g that rotatably support the front portion of the lifting link device 2 welded to the rear ends of the left and right main frames 10 and 10. It is connected and fixed via connecting members 10j and 10j to a horizontal pipe 10i welded to the front end of the extending support frame 10h.

The rear half of the machine body cover 19 is placed and supported and fixed on the cover support pipe 10e... And the rear horizontal pipe frame 10f.
On the other hand, the radiator support arms 10k and 10k are fixed by welding to the cover support pipe 10e provided on the right inner side of the cover support pipe 10e... And the radiator 12a of the engine 12 is bolted to the radiator fixing arms 10k and 10k. Is fixed. That is, the engine 12 is mounted on the left and right main frames 10 and 10, the radiator 12a is fixed to the cover support pipe 10e, and both are mounted on separate members.

  Therefore, the radiator 12 a is not directly attached to the engine 12 and is not directly damaged by the engine 12, so that the radiator 12 a is less likely to be damaged. However, the cover 12 is a member that supports the body cover 19 on the side of the engine 12. It can be supported by the pipe 10e, the machine structure is simplified, and a lightweight and compact rice transplanter can be obtained.

  The rotational power of the engine 12 is transmitted to a counter shaft 32 that is a drive shaft of the hydraulic pump 13 via a belt 31 (FIG. 3), and further transmitted from the counter shaft 32 to an input shaft 35 of the HST 4 via a belt 33. , Transmitted from the output shaft 36 of the HST 4 to the mission input shaft 34 via the belt.

A main clutch 38 is provided on the mission input shaft 34, and the driving force of the HST 4 is transmitted to the mission input shaft 34 via the main clutch 38.
Thus, the transmission system is disposed on the side of the engine 12 opposite to the left and right sides of the radiator 12a. That is, the radiator 12a is disposed on the left and right sides of the engine 12, and the transmission system is disposed on the left and right sides of the engine 12. Therefore, a rice transplanter having a good balance between the left and right sides of the machine body and having a smaller machine structure and excellent running performance can be obtained.

  Next, the seedling planting device 3 is mounted on the traveling vehicle 1 so as to be movable up and down by the lifting and lowering link device 2. First, a piston upper end portion of a general hydraulic cylinder 39 whose base is rotatably provided in the traveling vehicle 1 is connected to the lifting link device 2, and the hydraulic cylinder 13 is pressurized by the hydraulic pump 13 provided in the traveling vehicle 1. The seedling planting device 3 connected to the lifting and lowering link device 2 is moved up and down by supplying and discharging oil and extending and retracting the piston of the hydraulic cylinder 39.

  The seedling planting device 3 is supported by a planting transmission case 42 that also serves as a frame mounted on the rear part of the lifting link device 2 via a rolling shaft, and a support member provided in the planting transmission case 42. A seedling stage 43 that reciprocates in the left-right direction of the machine body, a rail for moving the seedling stage 43 to the left and right, a seedling receiving plate 41 having a seedling outlet for each strip, and a planting transmission case 42 A seedling planting tool 44, which is attached to the rear end portion and divides seedlings for one stock from the lower end of the seedling mount 43 and is planted on the field, and the rear portion is pivotally supported at the lower portion of the planting transmission case 42 The front part is composed of a center float 45, side floats 46, etc., which are leveling bodies mounted so as to be swingable up and down. The center float 45 and the side floats 46 are provided to level the field and level the front of the field where the seedlings are planted by the seedling planting tools 44.

  The PTO transmission shaft 49 has universal joints at both ends thereof, and is provided to transmit the power of the fertilization drive case 48 to the planting transmission case 42 of the seedling planting device 3. A center float sensor 49 constituted by a potentiometer that detects the vertical position of the front portion of the center float 45 is linked to the upper surface of the front portion of the center float 45 by a link. Then, based on the detection of the vertical position of the center float 45 front part of the center float sensor 49, a solenoid hydraulic valve (not shown) is controlled by a lifting / lowering means of the seedling planting device 3 of the control device (not shown). In 39, the vertical position of the seedling planting device 3 is controlled.

  That is, when the front part of the center float 45 is lifted to an appropriate range or more by an external force, the hydraulic oil pumped out from the transmission case 11 by the hydraulic pump 13 is sent to the hydraulic cylinder 39 to cause the piston to protrude and to move up and down. The device 2 is moved up to raise the seedling planting device 3 to a predetermined position, and when the front part of the center float 45 falls below an appropriate range, the pressure oil in the hydraulic cylinder 39 is returned to the mission case 11 and moved up and down. The link device 2 is moved down to lower the seedling planting device 3 to a predetermined position, and when the front portion of the center float 45 is in an appropriate range (when the seedling planting device 3 is in an appropriate predetermined position). The pressure oil in the hydraulic cylinder 39 is stopped and the seedling planting device 3 is provided at a fixed position. Thus, the center float 45 is used as a ground sensor for automatic height control of the seedling planting device 3.

  A hydraulic pitching cylinder 53 is provided in the middle of the upper link 2 a of the elevating link device 2, and the length of the upper link 2 a is changed by the expansion and contraction movement of the pitching cylinder 53. On the other hand, the drive pitching movement can be performed. In detail, the front upper link 2a is formed of a hollow square pipe material, and the fitting member 2c fixed to the front end of the rear upper link 2b is slidably fitted to the rear end of the front upper link 2a. The front end of the piston 53a of the pitching cylinder 53 fixed to the front upper link 2a is fixed to the rear upper link 2b side. Accordingly, when the pressure oil is supplied to and discharged from the pitching cylinder 53 and the piston 53a advances and retreats, the fitting member 2c fixed to the front end of the rear upper link 2b slides within the rear end portion of the front upper link 2a, The link length is changed.

  On the other hand, a tilt sensor 54 that detects the tilt angle of the traveling vehicle 1 in the front-rear direction is provided on the main frame 10, and the front-rear tilt posture with respect to the field scene of the seedling plant 3 regardless of changes in the front-back tilt posture of the traveling vehicle 1. The control valve (not shown) of the pitching cylinder 53 is switched by the pitching control means of the control device (not shown) based on the detection information of the inclination sensor 54 so as to maintain the predetermined posture.

  Instead of the center float 45 and the side float 46 shown in FIG. 2, a center float 45 ′ for two stripes, a side float 46 ′ for two stripes, and a small float 47 for a single stripe shown in FIG. A pair may be provided between the float 46 ′ and the float 46 ′.

  At this time, by attaching the bottom surface height of the float 47 slightly higher than that of the side float 46 ′, it is difficult to form a float mark on the field scene by the small float 47 that is easy to move up and down.

  The planting part stand 50 is attached to the planting transmission case 42 as shown in the enlarged side view of the seedling planting tool 44 of the seedling planting device 3 in FIG. The planting part stand 50 includes a first part 50a extending in the vertical direction, a second part 50b extending from the first part 50a and extending in the front-rear direction, and a third part bending from the second part 50b and extending in the left-right direction. A part 50c and a mounting base 50d provided at the end of the first part 50a are provided, and the left and right second parts 50b and the third part 50c have a planar portal shape.

  The planting unit stand 50 can be turned 180 degrees, and when the planting unit stand 50 is lowered to a field scene, the planting unit stand 50 is arranged at a position indicated by a broken line in FIG. Since the field scene is supported by the part 50b and the third part 50c, damage to the floats 45 to 47 is prevented. When the planting unit stand 50 is separated from the field scene, the seedling planting tool 44 can plant seedlings by inverting the planting unit stand 50 to the position indicated by the solid line in FIG. Further, when the planting unit stand 50 is disposed at the position indicated by the solid line in FIG. 5, the left and right second parts 50 b and the third part 50 c of the planting part stand 50 guard the seedling planting tool 44 when the aircraft is moving backward. There is no possibility that the seedling planting tool 44 may collide with an obstacle. In the guard state, the third part 50 c is located at a higher position than the seedling planting tool 44 in the same horizontal position as the seedling planting tool 44. In the stand state, the third portion 50c is positioned in front of the planting depth adjusting shaft in the vicinity of the lower position of the planting depth adjusting shaft that supports the floats 45 to 47. Thus, since the planting part stand 50 can be inverted 180 degrees, the stand 50 can perform both functions of supporting the seedling planting tool 44 and a guard.

  Further, as shown in the enlarged side view of the seedling planting tool 44 in FIG. 5, a mounting portion 42 a is provided so that the mounting base 50 d of the pair of planting unit stands 50 having the same shape can be mounted on the top and bottom of the planting transmission case 42. And the planting part stand 50 can be attached to the attachment part 42a corresponding to the seedling planting tool 44 and the seedling planting tool 44, respectively. That is, the rear part of the seedling planting tool 44 is guarded by changing the planting part stand 50 attached to the lower part of the planting transmission case 42 to the upper part of the planting transmission case 42 when the seedling planting tool 44 is planted. Damage prevention.

  When the planting part stand 50 shown in FIG. 5 is arranged on the upper part of the planting transmission case 42 during seedling planting work of the seedling planting tool 44, the position of the rear end of the stand 50 is the seedling planting tool 44. By adopting a configuration in which the rear end portion projects beyond the rear end portion, the rear portion guard of the seedling planting tool 44 can be more reliably performed.

  As shown in FIGS. 1 and 2, seedling receiving plate guards 51 for protecting the seedling receiving plate 41 attached to the planting transmission case 42 are provided at both rear ends of the seedling planting device 3. FIG. 6 (a) shows an enlarged perspective view of the right seedling receiving plate guard 51, and FIG. 6 (b) shows a sectional view taken along the line AA of FIG. 6 (a).

  A support member 52 that sandwiches the seedling receiving plate guard 51 is provided at the base of the seedling receiving plate guard 51, and a rotation fulcrum 52a is provided at a portion where the support member 52 and the seedling receiving plate guard 51 overlap, and the rotation supporting point 52a. The support shaft 51a of the seedling receiving plate guard 51 penetrating in the up and down direction is inserted. Further, at the position where the seedling receiving plate guard 51 and the support member 52 are in contact with each other, the concave portion 51b is provided in the seedling receiving plate guard 51, and the convex portion 52b is provided in the supporting member 52. The convex part 52b is made to intrude into the said recessed part 51b so that it may provide and the seedling receiving plate guard 51 may be hold | maintained in the position shown to Fig.6 (a).

  When a load of a certain value or more is applied to the seedling receiving plate guard 51 as the machine body advances, the seedling receiving plate guard 51 is bent in the direction of arrow B (rear side) with the support shaft 51a as a rotation fulcrum, and the seedling receiving plate guard 51 is damaged. Can be prevented. Further, when the machine body is stored in the warehouse, the seedling receiving plate guard 51 can be rotated to reduce the left and right width of the machine body. And even if the seedling guard 51 is bent by the said structure, it can return easily.

In addition, as shown in FIG. 2, the HST lever 40 and the saddle clutch lever 67 are arranged side by side in parallel at adjacent positions, and their rotation fulcrums are coaxial or arranged close to each other.
Since the HST lever guide 40a is provided on the same guide plate 69 in parallel with the saddle clutch lever guide 67a, the cost can be reduced by integrating the parts, and the design space can be reduced.

  Further, as shown in FIG. 2, an inter-stock lever 68 is provided between the HST lever 40 and the cockpit 20. The inter-strain lever 68 is a lever that adjusts the planting interval of the seedlings before and after the aircraft traveling direction, and can adjust the strains by changing the rotation interlocking speed of the seedling planting tool with respect to the traveling speed.

  By arranging the inter-strain lever 68 side by side with the heel clutch lever 67 in parallel, the levers 67 and 68 for planting seedlings are concentrated on the hand and switching between the strains can be adjusted while sitting in the pilot seat 20. .

  In the seedling transplanter of the present embodiment, as shown in FIG. 7, a sub tank 71 is provided as an extension to the main tank 70 for fuel, and fuel is supplied from the sub tank 71 to the engine 12 via the filter 72 and the pump 73. A fuel circulation path 74 for returning the fuel recovered from the engine 12 to the main tank 70 is provided, and the fuel is always caused to flow in the circulation path 74 to prevent fuel deterioration.

In addition, an air bleeding breather 75 of the sub tank 71 is connected to the main tank 70 so that the fuel always flows in the circulation path 74.
Further, as shown in FIG. 2, spare seedling platforms 77 (not shown in FIG. 1) are provided on the left and right of the front part of the machine body, and a center mascot 78 serving as an indicator of straight running is provided at the center of the machine body part. Left and right line drawing markers 80 and 80 are provided on the left and right sides of the machine body, respectively.

  The drawing marker 80 is a rigid body as shown in FIG. 8 (FIG. 8A is a left side view near the upper part of the seedling stage 43, and FIG. 8B is a rear view of the left part near the upper part of the seedling stage 43). A marker arm 80b made of an elastic body is attached to the tip of the marker tube 80a, and a rotation fulcrum 80b1 of the marker arm 80b is provided near the upper end of the seedling mount 43 and below the upper end.

  The line drawing marker 80 draws a line on the field scene corresponding to the machine center position in the next process during seedling planting work, and a bifurcated line drawing body 80b2 is provided at the tip of the marker arm 80b.

  Accordingly, one of the left and right line drawing markers 80, 80 advances the machine body in a state where the drawing body 80b2 at the tip of the marker arm 80b on the seedling planting work side in the next process is in contact with the mud surface of the field. Then, the drawn body 80b2 draws a line on the mud surface, so that a clear mark is given on the mud surface of the farm field, and in the next process, the center mascot 78 is aligned with this clear mark and the operator. If you steer the aircraft, you can easily run the aircraft straight ahead, and you can perform efficient rice planting work efficiently.

FIGS. 8 (c) and 8 (d) show enlarged views around the circles A and B in FIGS. 8 (a) and 8 (b), respectively.
The distal end portion 80a1 of the rigid marker tube 80a is flattened to serve as a mounting portion for the marker arm 80b made of an elastic body, and is flattened at an appropriate distance L (FIG. 8B) from the mounting portion. A part of the portion 80a1 is bent in an L shape on the front side of the machine body, and a U-shaped notch 80a11 is provided at the center of the front end to hold the marker arm 80b at the notched portion.

  When the drawing marker 80 is lowered to a farm scene, the marker arm 80b is bent forward, removed from the cutout portion 80a11, and the mounting portion is rotated, so that the marker arm 80b is rotated outward in the body side. Is done.

  Moreover, you may use the right-line drawing marker 90 of another Example shown in the perspective view of FIG. The drawing marker 90 shown in FIG. 9 has a drawing ring body 90b at the tip of a marker arm 90a and a synthetic resin scoop-like mud fraying piece 90c ... integrally formed at regular intervals. A thin projecting ring body 90d is integrally formed at the center of the left and right sides of each mud raking piece 90c.

  Therefore, when the machine body is advanced with the draw ring body 90b having the marker arm 90a of the left and right draw marker 90 as the center axis in contact with the mud surface of the field, the draw ring body 90b rotates and each mud The fried pieces 90c crawl up the mud one after another to drop mud lump on the mud surface, and the protruding ring 90d draws a line on the mud surface, so a clear mark on the mud surface of the field In the next process, if the pilot moves the aircraft by aligning the center mascot 78 with this clear mark, the aircraft can easily travel straight ahead, and efficient rice planting work can be performed efficiently. .

  A part longitudinal section of the drawing ring body 90b and a part of the marker arm 90a which is a rotation support shaft of the drawing ring body 90b form a spiral portion 90a1, and an integral plate 90a2 is fixed to the marker arm 90a. . And the marker arm 90a is inserted in the support part 91 of the seedling planting apparatus 3, and the edge part of the spring 92 is hooked and fixed to the said plate 90a2. The marker arm 90a can be inserted into the support portion 91 with a detachable spring 92 with a single touch.

  The drawing marker 90 has a spiral portion 90a1 on the marker arm 90a, so even if the field scene is uneven, the direction of the arrow A (up and down with respect to the plane of the drawing wheel 90b) or the direction of the arrow B (along the marker arm 90a). The draw ring body 90b can be swung in the direction), and marker marks are clearly formed in the farm scene.

  FIG. 10 is a view showing a cross section of the drawing ring body 90b and the marker arm 90a of the drawing marker 90 of another embodiment. The rubber resistance plate 94 that slightly prevents the rotation of the drawing ring body 90b is used as the drawing ring body 90b. And the marker arm 90a. For this reason, the rotation of the drawing wheel 90b is changed by the resistance plate 94, and a muddy mountain is formed which is higher than the rotation at a constant speed. This is because in the case of rice planting in rainy weather, the water level in the field increases, making it difficult to check the marker marks. Therefore, the configuration shown in FIG. 10 is convenient for rice planting in rainy weather.

  Further, the rubber resistance plate 94 prevents rotation of the drawing ring body 90b during transportation of the rice transplanter, and when the drawing ring body 90b is raised during turning of the rice transplanter, the drawing ring body 90b rotates due to inertia. Thus, mud can be prevented from scattering to the operator.

  When the drawing marker 96 of another embodiment whose side view is shown in FIG. 11 is rotated from the time of the operation shown by the dotted line to the time of storage shown by the solid line, the drawing marker 96 has an effect of reducing the length in the lateral width direction of the airframe. There is a marker arm 96a for switching between the drawing and non-working states, and a support arm 96b that supports the marker arm 96a, and the rotation directions of the marker arm 96a and the support arm 96b are both the same direction (rotation axis). In the configuration in which the drawing marker 96 is arranged between the traveling vehicle body 1 and the seedling stage 43, the space for storing the marker 96 does not require much space in the front and rear, and the rotary type Since the drawing part 96c can be stored so as to be positioned above the seedling stage 43 so as not to interfere with the seedling stage 43, the front and rear length of the machine body can be shortened, and only a short marker arm 96a is operated during the operation. Therefore, the accuracy of operation is stable, and mud splash to the worker can be suppressed.

  INDUSTRIAL APPLICABILITY The present invention can be used as a riding seedling transplanter such as a riding rice transplanter, a riding vegetable transplanter, and a riding grass transplanter.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole left view which shows the 8-row planting type rice transplanter which is one Example of this invention. It is a whole top view of the riding type rice transplanter of FIG. It is a schematic plan view which shows the transmission structure of the traveling vehicle of the riding type rice transplanter of FIG. It is a top view which shows arrangement | positioning of the several float of the riding type rice transplanter shown in FIG. It is a side view of the seedling transplanter of the riding type rice transplanter shown in FIG. It is a perspective view of the seedling receiving plate guide of the seedling transplanting device part of the riding type rice transplanter shown in FIG. It is a conceptual diagram of the fuel tank system of the riding type rice transplanter shown in FIG. 1 is a left side view (FIG. 8 (a)) near the upper part of the seedling stage of the riding type rice transplanter shown in FIG. 1, a rear view (FIG. 8 (b)) of the left part near the upper part of the seed stage. FIG. 9A is an enlarged view in the vicinity of each circle A in FIG. 8A (FIG. 8C), and an enlarged view in the vicinity of the circle B in FIG. 8B (FIG. 8D). It is a perspective view which shows an example of the drawing marker of the riding type rice transplanter shown in FIG. It is a partial longitudinal cross-sectional view which shows the modification of the drawing marker of FIG. It is a front view which shows an example of the drawing marker of the riding type rice transplanter shown in FIG.

  1: traveling vehicle, 2: lifting link device, 3: seedling planting device, 43: seedling mounting table, 44: seedling planting tool, 45: float, 80: drawing marker, 80a: marker tube, 80b: marker arm, 80b1: rotating fulcrum, 80b2: drawing body

Claims (1)

A seedling planting device (3) is attached to the rear part of the traveling vehicle (1) via an elevating link device (2), and the seedling planting device (3) is mounted on a seedling mounting base (43) and a seedling planting tool (44). In a riding seedling planter configured with a float and a float , the speed of the seedling planting tool relative to the traveling speed is changed to a position where an operator can sit and operate in the cockpit (20) of the traveling vehicle (1). The strain-to-stock lever (68) and the heel clutch lever (67) are arranged side by side and an HST lever (40) is provided adjacent to the heel clutch lever (67), The pivot point of the HST lever (40) is coaxial, the saddle clutch lever guide (67a) and the HST lever guide (40a) are provided on the same guide plate (69), and the HST lever (40) and the cockpit (20) In between stock lever (68) A resistance plate (94) that provides rotational resistance to the drawing ring body (90b) is provided between the drawing ring body (90b) and the marker arm (90a) of the drawing marker. Center float (45 ') for leveling the ground, side float (46') for leveling the seedling planting position for the two strips, and one line provided between the center float (45 ') and the side float (46') Riding-type seedling planting machine comprising a single-float float (47) for leveling the seedling planting position, and the bottom surface of the single-float float (47) being higher than the bottom surface of the side float (46 ′) .

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