JP2003009610A - Farm implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To always accurately draw a line by line-drawing marker even when a running vehicle is laterally slanted by preventing a state in which the line is not drawn because the descended top end of the line-drawing marker is floated up from the surface of top soil in the case when the line drawing marker is installed to the running vehicle in order to bring a seedling-planting unit to be light and the vehicle is laterally slanted caused by unevenness and the like of ground to be tilled, or on the contrary, the line is not clearly drawn because foreign elements in top soil are caught by the line-drawing marker when the top end of the line drawing marker is strongly pressed to the top soil. SOLUTION: This farm implement is equipped with the line-drawing marker 80 on the running vehicle 2 and a controller 97. The line-drawing marker 80 draws the line expressing a position on which the implement passes in the succeeding process on the surface of top soil simultaneously with the proceeding of the implement for carrying out the farm work in a field. The controller 97 controls the posture of the line drawing marker 80 to the surface of top soil to be almost constant by vertical control means for controlling the line drawing marker 80 depending on the detection of inclination of the running vehicle 2 by a detecting means 95 for detecting the lateral inclination of the running vehicle 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural working machine such as a rice transplanter equipped with a device for controlling the posture of a drawing marker.

[0002]

2. Description of the Related Art A rice transplanter is equipped with a line-drawing marker that draws on a surface soil surface a position through which the center of left and right of the machine passes in the next step when reciprocating and planting seedlings. This wire-drawing marker is installed on both left and right sides of the machine so that it can be erected and lowered.The wire-drawing marker on the next stroke side is lowered so that the tip of the wire-drawing marker touches the topsoil surface, and the tip of the wire-drawing marker is lowered to the topsoil. It is designed to scratch the surface and draw a line. When carrying out the seedling planting work in the next process, if the aircraft is advanced so that the center of the line of the aircraft passes through the trace of the line, the seedling planting line of each process is finished in parallel.

In the riding type rice transplanter in which the seedling planting section is provided in the traveling vehicle body via the link mechanism so as to be vertically movable,
The best condition is to make the seedling planting part lightweight in order to improve the seedling planting performance, and in recent years, a wire drawing marker is often provided on the traveling vehicle body side to make the seedling planting part lightweight.

[0004]

However, when the wire drawing marker is provided on the traveling vehicle body, when the vehicle body is tilted to the left or right due to the unevenness of the tiller, the tip of the descending wire drawing marker is lifted from the surface soil surface, and May not be drawn. On the contrary, there is a case where the tip of the drawing marker is strongly pressed against the topsoil, so that the foreign matter in the topsoil is caught by the drawing marker and the line is not clearly drawn on the topsoil surface. An object of the present invention is to prevent such a situation and to always draw a line accurately with a drawing marker even when the vehicle body leans to the left or right.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is an agricultural working machine in which a traveling body 2 is equipped with an agricultural working section 4 so as to be able to roll left and right. The traveling vehicle body 2 is equipped with a line drawing marker 80 for delineating the position where the vehicle body passes on the surface soil surface at the same time as the vehicle travels, and the line drawing marker is detected according to the vehicle body inclination detection of the detection means 95 for detecting the lateral inclination of the traveling vehicle body 2. This is an agricultural working machine provided with a control device 97 for controlling the drawing marker 80 so that the posture of the drawing marker 80 with respect to the surface soil surface becomes substantially constant by means of an up-down adjusting means for vertically adjusting the surface soil surface 80.

Therefore, according to the first aspect of the present invention, the line drawing marker 80 is provided on the traveling vehicle body 2 to reduce the weight of the farm work section 4 to improve the performance of farm work, and at the same time, to improve the performance of farm work. Even if the machine body is tilted to the left or right due to unevenness or the like, the attitude of the drawing marker 80 with respect to the topsoil surface is made substantially constant by the up-and-down adjustment means. Draw a line on the field. Therefore, good agricultural work can be performed.

According to a second aspect of the present invention, in the agricultural work machine according to the first aspect, the left and right rolling postures of the agricultural work section 4 are controlled in accordance with the body tilt detection of the detection means 95 for detecting the left and right tilt of the traveling vehicle body 2. The rolling posture control means is added.

Therefore, according to the second aspect of the present invention, in addition to the operation of the first aspect of the invention, the left and right rolling control of the agricultural working section 4 and the line drawing are performed by the detecting means 95 for detecting the left and right inclination of the traveling vehicle body 2. Since the attitude of the marker 80 can be controlled, the control configuration is simplified and an inexpensive agricultural working machine can be obtained.

According to a third aspect of the present invention, in the agricultural work machine in which the agricultural work section 4 is mounted on the traveling vehicle body 2 so as to be able to roll left and right, simultaneously with the progress of the machine for farm work in the field, the position where the machine passes in the next stroke is set to the surface soil surface. Drawing marker 80 for drawing
Is mounted on the traveling vehicle body 2, and the drawing action portion 83 of the drawing marker 80 maintains a substantially vertical state with respect to the surface soil surface in response to the detection of the body inclination of the detection means 95 for detecting the lateral inclination of the traveling vehicle body 2. The agricultural working machine is provided with the attitude control means for controlling the above.

Therefore, according to the third aspect of the present invention, the line drawing marker 80 is provided on the traveling vehicle body 2 to reduce the weight of the farm work section 4 to improve the performance of farm work, and at the same time, to improve the performance of farm work. Even if the vehicle body is tilted to the left or right due to unevenness or the like, the drawing action portion 83 of the drawing marker 80 is controlled so as to maintain a substantially vertical state with respect to the surface soil surface. A line can be drawn in the field, and good agricultural work can be performed.

According to a fourth aspect of the present invention, in the third aspect of the invention, a detecting means 95 for detecting the lateral inclination of the traveling vehicle body 2 is provided.
The rolling posture control means for controlling the left and right rolling postures of the agricultural working section 4 is added according to the detection of the machine body inclination.

Therefore, according to the invention described in claim 4, in addition to the operation of the invention described in claim 3, the detection means 95 for detecting the left-right inclination of the traveling vehicle body 2 controls the left-right rolling control of the agricultural working section 4 and the line drawing. Since the attitude of the marker 80 can be controlled, the control configuration is simplified and an inexpensive agricultural working machine can be obtained.

[0013]

According to the invention described in claim 1 of the present invention,
In the agricultural work machine of the present invention, the drawing marker 80 is provided on the traveling vehicle body 2 to improve the performance of agricultural work by reducing the weight of the agricultural work unit 4, but the machine body tilts left and right due to the unevenness of the tiller in the field. However, since the posture of the drawing marker 80 is properly controlled, the drawing marker 80 can appropriately draw a line in the field scene, and good agricultural work can be performed.
Therefore, the problem of the conventional example can be solved with a simple configuration.

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the detection means 95 for detecting the left-right inclination of the traveling vehicle body 2 controls the left-right rolling control of the agricultural work section 4 and the line drawing. When the posture of the marker 80 can be controlled, the control configuration is simplified and an inexpensive agricultural working machine can be obtained.

According to the third aspect of the present invention, the drawing action portion 83 of the drawing marker 80 maintains a substantially vertical state with respect to the surface soil surface even when the machine body is tilted to the left or right due to the unevenness of the tiller in the field. Therefore, the line drawing action portion 83 of the line drawing marker 80 can properly draw a line in the field scene, and good agricultural work can be performed.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the detection means 95 for detecting the lateral inclination of the traveling vehicle body 2 controls the left and right rolling of the agricultural work section 4 and draws the line. When the posture of the marker 80 can be controlled, the control configuration is simplified and an inexpensive agricultural working machine can be obtained.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A rice transplanter shown in the drawings as a preferred embodiment will be described below, but the present invention can be applied to other agricultural working machines such as a fertilizer applicator and a chemical sprayer.

In the rice transplanter 1, a seedling planting section 4 for eight-row planting is mounted on the rear side of the passenger traveling vehicle body 2 through an elevating link device 3 so as to be able to move up and down, and a fertilizer discharge port is provided on the side of the seedling planting section 4. The main body of the fertilizer applicator 5 provided with is attached to the rear part of the riding traveling vehicle body 2, and is configured as an eight-row planting fertilizer rice transplanter as a whole.

The traveling vehicle body 2 is provided with a mission case 10 at the front of the machine body, and front wheels 12, 12 are provided on the front wheel axles protruding outward from the front wheel final cases 11, 11 provided on the left and right sides of the mission case 10. It is installed. Further, at the rear end portion of the main frame 14 extending rearward from the rear portion of the mission case 10, the left and right rear wheel gear cases 16 and 16 are rotatably supported by the front and rear rolling shafts 15, and from the outer side portion of the rear wheel gear case. Main rear wheels 17, 17 and auxiliary rear wheels 1 are attached to the rear axles that project sideways.
8 and 18 are attached.

An engine 20 is mounted on the main frame 14, and a seat 22 is installed on an engine cover 21 which covers the engine 20 from above. A handle 23 for steering the front wheels 12, 12 is provided in front of the seat 22. An operation panel B provided with various warning lamps, various operation switches, and various display lamps is arranged below the handle 23. Also, seat 22
And around the handle 23, various levers, pedals,
A control box 25 having a control device 97, which will be described later, built therein is provided. The main step 26 and the auxiliary steps 27, 27 on the main frame 14 can be moved by the operator. The rear portions of the main step 26 and the auxiliary steps 27, 27 are high so as not to interfere with the main rear wheels 17, 17 and the auxiliary rear wheels 18, 18. In addition, step 27
27 Footrests 28, 28 used when getting on and off
Are attached to steps 27 and 27, respectively.

The lifting link device 3 includes a main frame 14
Upper links 31, 31 and lower link 3 rotatably attached to a link base 30 fixedly provided at the rear end portion
The vertical links 33 are connected to the rear ends of the vertical links 31 and 32. And vertical link 3
A connecting shaft 34 fixed to the seedling planting portion side is rotatably inserted and connected to a bearing portion projecting rearward from the lower end portion of 3. A piston rod of a lifting hydraulic cylinder 36 whose base is pivotally supported by a supporting member fixed to the main frame 14 is an upper link 31.
Is connected to the lower end of a swing arm 37 that is integrally provided with the elevating hydraulic cylinder 36. When the elevating hydraulic cylinder 36 is expanded and contracted, the elevating link device 3 operates to elevate and lower, and the seedling planting part 4 moves up and down in a substantially constant posture.

As shown in FIG. 8, the seedling planting section 4 includes four transmission cases 41a to which power on the traveling vehicle body side is transmitted via a planting transmission shaft 40 (FIG. 1) and four side-by-side arrangements. The planting transmission frame 41b, ... And the connecting pipe 41c, which connects the transmission case 41a and the planting transmission frame 41b ,. A seedling table 42 is provided, and a total of eight sets of planting devices 43, ... Are provided on the left and right sides of the rear end of each transmission frame 41b ,.

The seedling mounting table 42 includes a transmission frame 41b with a plant,
A support rail 45 attached to the mounting member 44 via a mounting member 44.
, And a seedling table support frame 46 having bases fixed to the left and right planting transmission frames 41b, 41b, and rollers 47 mounted on the upper part of the seedling table support frame 46 so as to be slidable in the left and right directions. It is adapted to reciprocate left and right by a lateral feed mechanism in the case 41a. By this left-right reciprocating movement, the seedlings located at the bottom of the seedling mounting table 42 are formed in a seedling receiving frame integrated with the support rail 45, and the seedling take-out port 45a is formed.
(See Figure 2), ... The planting device 43, ... Plants the seedlings supplied to the seedling take-out port 45a ,. When the seedling mounting table 42 moves to the end of the left and right strokes and all the seedlings at the bottom are planted, the seedling feeding belt 48, ...
Activates and transfers seedlings on the table by one stage downward.

The power input to the transmission case 41a is transmitted to the planting devices 43, ... By the transmission means in the connecting pipes 41c, ... And the planting transmission frame 41b. In the transmission path, clutches 50, ... Which switch the operation and stop of the planting devices 43 ,. Since the clutches 50, ... Are often operated "off" during work on the ridges, they are usually called "ridge clutches". On / off operations of the ridge clutches 50 are performed by the ridge clutch levers 51 provided on the seedling table support frame 46.

A center float 5 is provided below the seedling planting section 4.
A total of four ground leveling floats 3, 53 and side floats 54, 54 are provided. When the aircraft is advanced with these floats in contact with the mud surface of the field, the float glides while leveling the mud surface. Then, seedlings are planted on the site.

The seedling planting section 4 is freely rotatable around the connecting shaft 34. And the vertical link 33
Is provided with a rolling arm 61 rotatably about a rotation center shaft 60 as a fulcrum.
And the seedling stand frame 46 are rolling springs 62,
It is tied at 62 and acts so as to elastically return and move the seedling planting section 4 to the left and right neutral positions. Further, the seedling placing table 42 and the rolling arm 61 are connected by balance springs 63, 63 so that the left and right balance of the seedling placing table 42 is maintained even when the seedling placing table 42 moves from the center in the left and right direction to the left and right. There is. A fan gear 65 is formed in the lower portion of the rolling arm 61, and a pinion 66 meshes with the fan gear. When the pinion 66 is rotated by the rolling motor 67, the rolling arm 61 rotates and the rolling spring 6
The lateral inclination of the seedling planting part 4 is adjusted via 2, 62.
Therefore, the front wheels 12 or the rear wheels 17 of the passenger traveling vehicle body 2,
When any one of the left and right wheels of 18 moves up and down due to the unevenness of the tiller and the riding vehicle body 2 tilts left and right, the left and right tilt sensor 95 (FIG. ) Is detected, the rolling motor 67 is automatically driven so that the seedling planting section 4 becomes horizontal, and the rolling arm 61 is rotated so that the seedling planting section 4 is always kept horizontal. To control.

It should be noted that the left and right outer side sections of the seedling mounting table 42 can be folded upward and the left and right end portions of the support rail 45 can be bent upward so that the seedling planting portion can be transported or stored. The left and right width of 4 can be reduced.

The fertilizer applicator 5 is provided with fertilizer tanks 70, 70 and a fertilizer feeder 71, ... On the upper rear side of the traveling vehicle body 1, and on the left and right sides of the floats 53, 53, 54, 54, grooving tools 72 ,. And fertilizer guides 73, ..., and the fertilizer feeders 71, ... Of each line are connected to the fertilizer guides 73, ... With flexible fertilizer hoses 74 ,.
The fertilizer in 0 is fed into the fertilizer hose 74, ... by a fixed amount by the fertilizer feeding device 71 ,.
It is conveyed to the fertilizer application guides 73, ... by the compressed air generated in the above step, and is dropped into the fertilizer application grooves formed in the vicinity of the side portions of the seedling planting row by the grooving tools 72 ,.

On the left and right sides of the front part of the traveling vehicle body 2, there are provided preliminary seedling mounts 77 having multiple stages of seedling mounts 77a, so that the operator can set seedlings on the seedling mount 42 during seedling planting work. When the number of remaining seedlings is low, the seedlings placed on the preliminary seedling placing table 77 are taken and supplied to the seedling placing table 42.

On both left and right sides of the traveling vehicle body 2, there are provided line drawing markers 80, 80 for drawing the position where the left and right center of the machine body passes in the next stroke on the surface soil surface. This line drawing marker 80
Is provided with a marker arm 82 rotatably around a rotation shaft 81 in the front-rear direction as a fulcrum on a marker frame 79 whose base is fixed to the main frame 14, and a drawing action portion 83 is formed at a right angle to the tip end of the marker arm 82. The tip of the wire-drawing action portion 83 is turned upside down so as to come into contact with the ground, and the marker arm 82 is rotated substantially vertically to a non-action position (from the non-action position). May be rotated further inward to the storage position located inside).

The marker arm 82 is rotated by the rotating motor 84, and the marker arm 82 is rotated by the rotational drive of the rotating motor 84 through the marker operating wire 85 to the working position and the non-working position. ing. This operation configuration will be described in more detail. The tip of the inner wire 85a of the marker operation wire 85 is fixed to the groove of the reel 86 rotatably provided on the main frame 14. On the other hand, a transmission gear 87 for reduction is rotatably provided on the main frame 14, and the transmission gear 87 integrally rotates a small diameter gear 87a having a small number of teeth and a large diameter gear 87b having a large number of teeth. It is composed. Then, the gear 8 that rotates integrally with the reel 86
6a and a small diameter gear 87a are meshed with each other, and a large diameter gear 87b and a small diameter output gear 84a with a small number of teeth attached to the output shaft of the rotation motor 84 are meshed with each other. The side of the inner wire 85a that cooperates with the marker arm 82 cooperates with the marker arm 82 via a tension spring 85b. The tension spring 85b acts as a buffer for absorbing excessive tension of the inner wire 85a. Further, the marker arm 82 is biased by a spring from the non-acting position side to the acting position side (downward moving side) (not shown).

Therefore, by the forward / reverse rotation of the rotation motor 84, the reel 86 gradually winds or loosens the inner wire 85a, and the marker arm 82 is rotated between the working position and the non-working position.

Further, the marker arm 82 is constructed so as to be broken at an intermediate portion thereof, and extends linearly at the working position and is bent at the non-working position side so that the vertical height thereof is lower than that of the preliminary seedling stand 77. Has become. The configuration will be described in detail. A tip marker arm 82a provided with a wire-drawing action portion 83 at its tip.
The rotation shaft 82c is attached to the tip of the base marker arm 82b.
Is rotatably provided, and a tension spring 8 is provided between an arm 82d fixedly provided on the base of the tip marker arm 82a and an arm 82e fixedly provided on the tip of the base marker arm 82b.
2f is provided, and a wire 88 is stretched between the arm 82g fixedly provided on the base of the previous marker arm 82a and the arm 79a fixedly provided on the marker frame 79. Then, a grooved rotary roller 82i is rotatably provided at the tip of an arm 82h extending to the opposite side beyond the rotary shaft 81 on the base side of the base marker arm 82b, and the groove of the grooved rotary roller 82i is formed by the wire 88. Is engaged with.

Therefore, in the working position shown by the solid line in FIG. 3, the wire 88 is in a straight extended state and the marker arm 82 is in a stretched state, and in the non-working position shown by an imaginary line, the wire 88 is a grooved rotary roller. The tip marker arm 82a is pressed downward at 82i and is in a state of being bent. Further, the left and right line drawing markers 80, 80 are configured such that the marker arm 82 is broken at a midway portion on the non-acting position side and the vertical height is lower than that of the left and right preliminary seedling placing table 77. When the aircraft is stored in a barn or the like, both the left and right line drawing markers 80, 80 are kept in the non-acting position so that they do not get in the way and can easily travel on the road, and can be stored in a barn with a low ceiling.

When the aircraft is advanced with the drawing markers 80, 80 lowered to the working position, the drawing working portion 83
Draws a line by scratching the topsoil. In the next step, the aircraft is advanced while operating the steering wheel so that the line trace and the center mascot A visually match.

The drawing marker control device 97 for controlling the operation of the left and right drawing markers 80, 80 is constructed as shown in the control block diagram. That is, an automatic / manual changeover switch 91 for switching between automatic control and manual control, a manual lever 92 for manual operation, a finger up lever 93 for raising and lowering the seedling planting portion, and marker angle sensors 94L, 94R for detecting the position of the wire drawing marker. , A left / right tilt sensor 95 which is a detecting means for detecting the left / right tilt of the machine body, the ridge clutch 50, ...
Are connected to the input side of the control device 97 which is the control means, and the rotation motors 84L and 84R are connected to the output side of the control device 97 via relay circuits 98L and 98R. Are connected. The controller 97 performs the following controls.

When the automatic / manual switch 91 is "manual", an output signal is output to the rotating motors 84L and 84R based on the operation position of the manual lever 92. The manual lever 92 is designed to be operated in a cross shape with the neutral point as a starting point. When the manual lever 92 is operated to the left or right, only the drawing marker 80 on that side is lowered to the operating position, and when it is operated backward, both the left and right drawing markers 80, When 80 is lowered to the operating position and operated forward, the rotation motors 84L and 84R are driven so that both the left and right wire drawing markers 80 and 80 rotate to the storage position.

When the automatic / manual changeover switch 91 is set to "automatic" with the line drawing markers 80, 80 on one of the left and right sides lowered to the working position, the finger up lever 93 is set to "" when the machine turns at the end of the field. When the "seedling planting part up" is operated, the fallen line drawing marker 80 stands up in a non-acting position, and when the finger up lever 93 is operated to "down the seedling planting part" after turning, the reverse of the previous stroke. The rotation motor 84 so that the wire-drawing marker 80 on the side falls to the working position.
L and 84R are driven. Thus, when the seedlings are planted back and forth in the field, the line drawing markers 80, 8 are drawn so that the horizontal center position of the machine body in the next process is drawn on the surface soil surface.
The standing and falling of 0 is automatically performed. When the finger-up lever 93 raises the seedling-planting section 4 to the non-working position, the drive of the seedling-planting section 4 and the fertilizer application device 5 is stopped, and the finger-up lever 93 lowers the seedling-planting section 4 to the working position. Then, the seedling planting unit 4 and the fertilizer application device 5 are driven.

During the automatic control, the left and right tilt sensor 95
In accordance with the vehicle body inclination detection result, the rotation motor 84L or 84R is driven so that the base marker arm 82b of the drawing marker 80 at the operating position becomes horizontal (the vehicle body inclination detection angle of the left and right inclination sensor 95 and the marker). Angle sensor 9
Based on the detection angles of 4L and 94R, the base marker arm 82
b is controlled to be horizontal). At this time, since the grooved rotary roller 82i operates the wire 88 by the vertical movement for the operation of the base marker arm 82b to become horizontal, the tip marker arm 82a is slightly bent, and the wire drawing action portion 83 is formed.
The tip of the is always perpendicular to the topsoil surface.

As a result, as shown in FIG. 6, even if one wheel (front wheel) 12 falls into a concave portion of the soil surface and the body tilts to the left or right, the tip of the wire-drawing action portion 83 rises from the soil surface, On the contrary, the wire drawing action portion 83 is not strongly pressed against the topsoil and is always kept at an appropriate position. Therefore, the rotation motors 84L and 84R, the wire 88, the grooved rotation roller 82i, and the like constitute up-and-down adjusting means, and the left and right tilt sensors 95, the rotation motors 84L and 84R, and the marker angle sensors 94L and 9L.
The 4R, the wire 88, the grooved rotary roller 82i, and the like constitute the posture control means of the wire drawing action portions 83, 83.

Here, as shown in FIG. 6, the left front wheel 12
Fall into the recess of the cultivator, the right side of the vehicle body tilts high, and the right marker arm 82 also tilts high right side to draw the wire drawing action part
The case where 3 tries to leave the field scene will be specifically described.

First, when the right / left tilt sensor 95 detects that the right side of the vehicle body is tilted high, the right turning motor 8 is moved.
4R is driven to rotate the right reel 86 and slowly loosen (extend) the inner wire 85a. Then, since the inner wire 85a of the right base marker arm 82b of the right marker arm 82 is loosened, the right base marker arm 82b is gradually lowered until the right marker angle sensor 94R detects horizontal. At the same time, since the right base marker arm 82b gradually descends, the grooved rotary roller 82
Since i moves upward and the wire 88 gradually extends, the position of the right tip marker arm 82a is gradually corrected to the right upward direction,
The wire drawing action portion 8 provided at the tip of the right tip marker arm 82a
The leading end (lower end) of 3 is gradually moved outward and corrected so as to be perpendicular to the field scene. Therefore, the tip portion of the right line drawing action portion 83 can appropriately draw a line on the topsoil surface at an appropriate vertical height while maintaining a posture substantially perpendicular to the topsoil surface.

On the other hand, as shown in FIG. 6, when the front wheel 12 on the left side falls into the recess of the cultivator and the vehicle body inclines high on the right side, the seedling planting section 4 also exerts a force to incline high on the right side. When the right and left tilt sensor 95 detects that the vehicle body is tilted to the right side, the rolling motor 67 is automatically driven so that the seedling planting section 4 becomes horizontal, and the rolling arm 61 is moved to the seedling planting section 4. The left side of the plant is rotated in a direction of lifting so that the seedling planting unit 4 is always maintained horizontally. In this way, the horizontal inclination sensor 95 can control the posture of the drawing markers 80, 80 and the rolling control of the seedling planting section 4.

When it is determined from the detection result of the ridge clutch sensor 96, that one of the ridge clutches 50 is "disengaged", the wire drawing marker 80 on the non-acting side is rotated to the storage position. Rotating motors 84L, 8
If it is configured to drive 4R, the ridge clutch 50
Is "off" when seedlings are being planted at the edge of the ridge and there may be an obstacle right next to the ridge, so the line marker 80 on the non-acting side is the obstacle. It is possible to prevent hitting.

The ridge marker 100 provided on the front part of the vehicle body so as to be rotatable left and right and extendable is rotated laterally at the start of planting seedlings in the field so as to extend so that the tip end thereof comes into contact with the ridges. When the planting work is done, the space between the ridge and the planted seedling is exactly 8
Its length is configured to be the distance of the strip. Further, in the state in which the center mascot A is erected and contracted, it is in the same lateral position as the center mascot A, and can perform the same function as the center mascot A. Therefore, the center mascot A may be eliminated and the ridge marker 100 may also serve as the center mascot.

Reference numeral 101 denotes a mascot panel provided near the rear of the ridge marker 100 on the front of the vehicle body. Like the operation panel B described above, various indicator lamps (seedlings) are provided on the rear surface of the operator seated on the seat 22. A seedling reduction lamp that indicates that the number of seedlings on the mounting table has decreased, a marker lamp that indicates which of the left and right markers is in the operating position, a planting lamp that indicates whether the planting clutch is engaged, etc.) are provided. There is. As described above, by separately providing the mascot panel 101 with various display lamps that are conventionally provided on the operation panel B, the operation panel B can be made smaller, so that the cover portion at the front part of the vehicle body can be made lower and the front view field can be reduced. Improves workability.

Further, by engaging the ridge marker 100 that has been reduced and erected on the mascot panel 101, the posture holding structure of the mascot panel 101 and the ridge marker 100 becomes simple, which contributes to weight reduction of the machine body. As a result, the running performance of the paddy field is improved and a rice transplanter with good workability can be obtained.

Here, description will be given based on the actual rice planting work. In order to perform rice planting work in a paddy field as shown in FIG. 10, first enter the farmland from the farm road RD through the farmland entrance ENT,
Move to the ridge A2 on the opposite side to the planting start position. Then, the seedlings are placed on the seedling placing table 42, the granular fertilizers are put in the fertilizer tanks 70, 70, the engine 20 is started, the speed change lever is set to the planting speed, and the automatic / manual changeover switch 91 is set to “automatic”.
Then, when each part is driven to move the machine body forward, the seedling planting part 4 is automatically controlled to move up and down and to the left and right to a proper position for rice planting work. At that time, at the same time, the fertilizer application device 5 applies granular fertilizer to the field on the side of the seedling planting position. Then, the ridge marker 100 is tilted to the right side and extended, the aircraft is advanced while tracing the ridge at the tip of the ridge marker 100, and a one-step seedling planting interval is provided between the aircraft and the ridge, and planted along the ridge A2. Run with. A4 in the field
After planting until the tip of the machine is aligned with the side (If the planting is stopped when the machine runs until the tip of the machine is aligned with the ridge, the remaining planting on the ridge will be the same as the one-step seedling planting interval. , The length of the machine is configured), and when the finger up lever 93 is operated to "raise the seedling planting section",
The descending drawing marker 80 stands up in the non-acting position,
The drive of the seedling planting section 4 and the fertilizer application device 5 is stopped, and the seedling planting section 4 moves upward. Therefore, when the operator operates the handle 23 to turn the machine body, erects and reduces the ridge marker 100, and operates the finger up lever 93 to “lower the seedling planting section”,
The line drawing marker 80 on the opposite side to the previous stroke is lowered to the working position, and planting and fertilization are restarted.

In this way, when the vehicle travels back and forth with ridges A1 toward the ridge A1 and the remaining one stroke is reached with the ridge A1, as shown in FIG. 11, from the entrance ENT side toward the ridge A2. The headland is planted along the ridge A3 that has been exactly separated by one stroke by the planting work, and then the stroke that was initially separated by one stroke is planted from the ridge A3 toward the ridge A4. Heading is planted just one stroke by the above-mentioned planting work from the ridge A2 to the ridge A1, and finally, one stroke left between the ridge A1 and the ridge A1 is moved toward the entrance ENT. Drive along with A1 and enter / exit E
Exit from NT to the farm road RD. With the above,
Unplanted areas do not occur in the four corners of the field, enabling efficient rice planting.

At the time of this planting work, when either the left or right wheel of the front wheels 12 or the rear wheels 17, 18 of the passenger traveling vehicle body 2 moves up and down due to the unevenness of the tiller, and the passenger traveling vehicle body 2 leans left and right, The left-right inclination sensor 95 detects the left-right inclination angle of the vehicle body, and automatically drives the rolling motor 67 so that the seedling planting section 4 becomes horizontal and rotates the rolling arm 61 to constantly plant seedlings. The part 4 is controlled so as to be maintained horizontally, and at the same time, the left and right tilt sensor 95
In accordance with the inclination detection angle of the vehicle body, the rotation motor 84L or 84R is driven so that the base marker arm 82b of the drawing marker 80 in the working position becomes horizontal, so that the base marker arm 82b is kept horizontal. Controlled by.
At this time, since the grooved rotary roller 82i operates the wire 88 by the vertical movement for the base marker arm 82b to become horizontal, the front marker arm 82a bends to some extent,
The tip end portion of the wire drawing action portion 83 is always perpendicular to the topsoil surface, and even when the vehicle body is tilted to the left or right, the tip end portion of the wire drawing action portion 83 floats up from the topsoil surface,
On the contrary, the wire drawing action portion 83 is not strongly pressed against the topsoil and is always kept at an appropriate position, so that good wire drawing can be performed.

[Brief description of drawings]

FIG. 1 is a side view of a rice transplanter according to an embodiment of the present invention.

FIG. 2 is a plan view of the rice transplanter of FIG.

FIG. 3 is a front view for explaining the operation of the drawing marker.

FIG. 4 is a side view of a drive unit of the wire drawing marker of the rice transplanter of FIG. 1.

5 is a plan view of a drive unit of the wire drawing marker of the rice transplanter of FIG. 1. FIG.

FIG. 6 is a front view of the rice transplanter shown in FIG. 1 in which the body of the rice transplanter is tilted to the left and right.

FIG. 7 is a front view for explaining the action of the ridge markers of the rice transplanter of FIG.

FIG. 8 is a front view of a seedling planting section of the rice transplanter of FIG. 1.

9 is a block diagram of a line drawing marker control device of the rice transplanter of FIG. 1. FIG.

FIG. 10 is a diagram showing a work order of seedling planting of the rice transplanter of FIG. 1.

FIG. 11 is a diagram showing a work sequence of seedling planting of the rice transplanter of FIG. 1.

[Explanation of symbols]

1 Rice transplanter (agricultural work machine) 2 Traveling vehicle 3 Lifting link device 4 Seedling planting section (agricultural work section) 5 Fertilizer application 10 Mission case 11 Front wheel final case 12 Front wheel 14 Main frame 15 Rolling shaft 16 Rear wheel gear case 17 Main rear wheel 18 Auxiliary rear wheel 20 Engine 21 Engine cover 22 Seat 23 Handle 25 Control box 26 Main step 27 Auxiliary step 28 Footrest 30 Link base 31 Upper link 32 Lower link 33 Vertical link 34 Connecting shaft 36 Lifting hydraulic cylinder 37 Swing arm 40 Planted transmission shaft 41 seedling planting part frame 41a transmission case 41b planting transmission frame 41c connecting pipe 42 seedling placing table 43 planting device 44 mounting member 45 support rail 45a seedling taking-out port 46 seedling placing table supporting frame 47 roller 48 seedling feeding belt 50 ridge crusher Chi 51 Ridge clutch lever 53 Center float 54 Side float 60 Rotation center shaft 61 Rolling arm 62 Rolling spring 63 Balance spring 65 Fan gear 66 Pinion 67 Rolling motor 70 Fertilizer tank 71 Fertilizer feeder 72 Grooving tool 73 Fertilizer guide 74 Fertilizer hose 75 Blower 77 Spare seedling placing stand 77a Seedling placing portion 79 Marker frame 79a Arm 80 Drawing marker 81 Rotating shaft 82 Marker arm 82a Tip marker arm 82b Base marker arm 82c Rotating shafts 82e, 82g, 82h Arm 82i Rotating roller with arm groove 82f tension spring 83 wire drawing action portion 84 rotation motor 84a output gear 85 marker operating wire 85a inner wire 85b tension spring 86 reel 87 transmission gear 87a small diameter gear 87b large diameter YA 88 Wire 91 Automatic / manual switch 92 Manual lever 93 Finger up lever 94L, 94R Marker angle sensor 95 Left and right inclination sensor (right and left inclination detecting means) 97 Control device 98 Relay circuit 100 Ridge marker 101 Mascot panel RD Farm road ENT Field entrance A1 , A2, A3, A4 Ridge A Center mascot B Operation panel

Claims (4)

[Claims] 1. A farming machine in which a farming section 4 is mounted on a traveling vehicle body 2 so as to be able to roll left and right, and a line-drawing marker 80 for drawing a position where the farming machine passes in the next stroke to the surface soil surface at the same time as the machine body performing farming work in a field progresses. Detecting means 9 that is mounted on the traveling vehicle body 2 and that detects the lateral inclination of the traveling vehicle body 2
A control device 97 is provided for controlling the drawing marker 80 so that the attitude of the drawing marker 80 with respect to the surface soil surface becomes substantially constant by the up-down adjusting means for adjusting the drawing marker 80 up and down with respect to the surface soil surface in accordance with the detection of the body inclination. Agricultural work machine characterized by. 2. The rolling posture control means for controlling the horizontal rolling posture of the agricultural working section 4 in accordance with the detection of the body inclination of the detecting means 95 for detecting the horizontal inclination of the traveling vehicle body 2. Agricultural work machine described. 3. A farming machine having a traveling body 2 on which a farming section 4 is mounted so as to be able to roll left and right, and a line-drawing marker 80 which draws on a surface soil surface the position where the farming machine passes in the next step at the same time as the machine body performing farming work in a field progresses. Detecting means 9 that is mounted on the traveling vehicle body 2 and that detects the lateral inclination of the traveling vehicle body 2
An agricultural working machine characterized by being provided with an attitude control means for controlling the drawing action portion 83 of the drawing marker 80 so as to maintain a substantially vertical state with respect to the surface soil surface in accordance with the detection of the machine body inclination of 5. 4. The rolling posture control means for controlling the horizontal rolling posture of the agricultural working section 4 according to the detection of the body inclination of the detecting means 95 for detecting the horizontal inclination of the traveling vehicle body 2. Agricultural work machine described.