JP5018151B2 - Ride type seedling planting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type seedling planting machine which is equipped with a stand for lifting a seedling planting device, composed of a relatively simple constitution, from a ground surface. <P>SOLUTION: The planting part stand 50, which is attached to the seedling planting device 3 in the rear of the riding type seedling planting machine, comprises: a first part 50a which is elongated in the vertical direction; a second part 50b which is longitudinally elongated by being bent from the first part 50a; a third part 50c which is horizontally elongated by being bent from the second part 50b; and a mounting base part 50d which is provided at the end of the first part 50a. The position of the third part 50c can be switched so that the third part 50c can be positioned on the rear side with respect to a seedling planting tool 44 and arranged in a position to guard the seedling planting tool 44, in the use of the seedling planting tool 44, and so that the third part 50c can be positioned below floats 45 and 46 on the front and lower sides with respect to the seedling planting tool 44 and arranged in a position to lift the floats 45 and 46 from the ground surface, in the disuse of the seedling planting tool 44. This can prevent damage on the seedling planting tool 44 and the floats 45 and 46. <P>COPYRIGHT: (C)2008,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 has a stand for floating the seedling planting device from the ground.
JP 2000-60226 A

The stand for floating the seedling planting device disclosed in Patent Document 1 or the like is not a simple structure. Then, the subject of this invention is providing the riding type seedling planting machine provided with the stand for floating the seedling planting apparatus which consists of a comparatively simple structure from the ground. Another object is to shorten the longitudinal length of the aircraft.

The invention according to claim 1 is a seedling planting device (3) equipped with a float (45, 46) at the lower part of the traveling vehicle (1) and having a seedling stage (43) and a seedling planting tool (44). ) Is mounted so as to be movable up and down, a planting part stand (50) is attached to the seedling planting device (3), and the planting part stand (50) is a first part ( 50a), a second part (50b) bent from the first part (50a) and extending in the front-rear direction, a third part (50c) bent from the second part (50b) and extended in the left-right direction, and the first part An attachment base (50d) provided at the end of the part (50a), and when the seedling planting tool (44) is used, the third part (50c) is located behind the seedling planting tool (44). It is arranged in a position to guard the seedling planting tool (44), and when the seedling planting tool (44) is not used, the third The position (50c) is located below the float (45, 46) on the front side and the lower side of the seedling planting tool (44) so as to float the float (45, 46) from the ground. This is a riding seedling transplanter that can be switched in its position .

The invention according to claim 2 includes a marker arm (96a) that is provided with a rotary drawing portion (96c) at one end and switches between a drawing operation state and a non-operation state, and the other end portion of the marker arm (96a). Drawing markers (96) having both the rotation directions of the support arm (96b) set in the same direction are provided on the left and right sides of the machine body between the traveling vehicle (1) and the seedling stage (43), respectively. The riding according to claim 1 , wherein the drawing portion (96c) can be stored so as to be positioned above the seedling stage (43) by bringing the support arm (96a) and the support arm (96b) into an upright posture. It is a type seedling planting machine.

According to the invention which concerns on Claim 1, when a planting part stand (50) is lowered | hung to a farm scene, the seedling planting tool (44) is floated from the ground by the 2nd site | part (50b), 44) can be prevented, and if the planting stand (50) is placed 180 degrees inversion from that, seedlings can be planted by the seedling planting tool (44), and the planting unit can be used when the aircraft is moving backward. Since the third part (50c) of the stand (50) is positioned behind the seedling planting tool (44) to guard the seedling planting tool (44), the seedling planting tool (44) collides with an obstacle. And will not be damaged .
According to the invention of claim 2, in addition to the effect of the invention of claim 1, the drawing portion (96c) can be stored so as to be positioned above the seedling mount (43). The front and rear length can be shortened. In addition, when switching between the drawing action state and the drawing non-action state, the marker arm (96a), which is a part of the drawing marker (96), only operates, so that the accuracy of the operation is stable, and the mud to the operator is muted. Can suppress splashing.

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.

The lower the shaped front connecting frame 10b of the plane Miko connecting both fixedly welded to the front portion of the left and right main frames 10, 10, the horizontal before extending horizontally on top of the front connecting frame 10b The pipe frame 10c is fixed by welding, and further, support plates 10d made of L-shaped steel plates are fixed by welding to the front horizontal pipe frame 10c. 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.

Shown to actual施例drawing markers 96 of the positive rear view in FIG. 11, when pivoted from the time of work shown by the dotted line when stored indicated by the solid line, the effect of drawing the marker 96 to reduce the length of the lateral direction of the machine body . 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 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.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Passenger-type traveling vehicle 2 Elevating link apparatus 2a Upper link 2b Rear upper link 2c Fitting member 3 Seedling device (rice transplanting device)
4 Fertilizer 6 Front wheel 7 Rear wheel 10 Left and right main frame 10a Horizontal frame 10b Front connection frame 10c Front horizontal pipe frame 10d Support plate 10e Cover support pipe 10f Rear horizontal pipe frame 10h Support frame 10i Horizontal angle pipe 10j Connection material 10k Radiator fixed Arm 11 Mission case 12 Engine 12a Radiator 13 Hydraulic pump 14 Steering post 16 Steering handle 17 Operation panel 18 HST
19 Aircraft cover 20 Pilot seat 22 Front wheel support case 23 Rolling rod 24 Rear wheel support case 25 Rolling shaft 31 Belt 32 Counter shaft 33 Belt 34 Mission input shaft
35 Input Shaft 36 Output Shaft 38 Main Clutch 39 Hydraulic Cylinder 40 HST Lever 40a HST Lever Guide 41 Seedling Plate 42 Planting Transmission Case 42a Mounting Portion 43 Seedling Stand 44 Seedling Planting Tool 45 Float (Center Float)
46 Float (side float) 47 Float
48 Fertilization drive case 49 PTO transmission shaft 50 Planting part stand 51 Seedling plate guard 51a Support shaft 51b Concavity 52 Support member 52a Rotating fulcrum 52b Convex part 53 Pitching cylinder
53a Piston 54 Tilt sensor 67 畦 Clutch lever 67a 畦 Clutch lever guide 68 Stock lever 70 Main tank 69 Guide plate 71 Sub tank 72 Filter 73 Pump 74 Circulation path 75 Breather 77 Preliminary seedling stage 78 Center mascot 80 Drawing marker 80a Marker tube 80a1 Tip Part 80a11 U-shaped notch 80b Marker arm 80b1 Rotating fulcrum 80b2 Forked drawing body 90 Right drawing marker 90a Marker arm 90a1 Spiral part 90a2 Plate 90b Drawing ring body 90c Mud lift piece 90d Protrusion ring body 91 Support part 96 Drawing Marker 96a Marker arm 96b Support arm 96c Drawing part

Claims (2)

Riding equipped with a float (45, 46) at the lower part of the traveling vehicle (1) and a seedling planting device (3) having a seedling stand (43) and a seedling planting tool (44), which can be moved up and down. In the type seedling planting machine,
A planting part stand (50) is attached to the seedling planting device (3), and the planting part stand (50) is bent from the first part (50a) and the first part (50a) extending in the vertical direction. A second part (50b) extending in the front-rear direction, a third part (50c) bent from the second part (50b) and extending in the left-right direction, and a mounting base (50d) provided at the end of the first part (50a) ), And when the seedling planting tool (44) is used, the third part (50c) is positioned behind the seedling planting tool (44) so as to guard the seedling planting tool (44). When the seedling planting tool (44) is not used, the third part (50c) is positioned below the float (45, 46) on the front side and the lower side of the seedling planting tool (44) and floats (45, 46) was provided so that it could be switched so that it would be placed at a position that floats off the ground. Riding seedling planting machine according to claim. A rotation of a marker arm (96a), which is provided with a rotary drawing part (96c) at one end and switched between a drawing state and a non-working state, and a support arm (96b) that supports the other end of the marker arm (96a). Line markers (96) that are set in the same direction of movement are provided on the left and right sides of the aircraft between the traveling vehicle (1) and the seedling platform (43),
The marker arm (96a) and the support arm (96b) are both in an upright posture so that the drawing portion (96c) can be stored so as to be positioned above the seedling stage (43). The riding seedling transplanter according to claim 1.

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