JP2003289701A - Agricultural implement working machine with marker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an agricultural working machine with a marker, with which damage of a driving means is controlled. <P>SOLUTION: The agricultural working machine with the marker carries out fixed agricultural operation and marks a field while moving in the field. The agricultural working machine with the marker is equipped with a marker body 33 which changes an action attitude to a nonaction attitude by rotation and the driving means 34 for rotating the marker body 33. The agricultural working machine with the marker is equipped with an intermediary rotation body 35 which is positioned between the marker body 33 and the driving means 34, is rotated in operation of the driving means 34 but is not rotated and keeps a stopped state when external force is applied to the marker body 33 in an action attitude from the field side and the marker body is rotated upward. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marker-equipped agricultural working machine for carrying out predetermined agricultural work and marking a field while moving in the field.

[0002]

2. Description of the Related Art Conventionally, there has been widely known an agricultural working machine with a marker, which can easily ensure straightness in a field and can perform an accurate agricultural work.

The conventional agricultural working machine with a marker has a marker body which can be switched between a working posture and a non-working posture by rotation, and a drive means including a drive motor for rotating the marker body. However, they are directly connected to each other.

[0004]

However, in the above-described conventional agricultural working machine with markers, for example, the marker body in the working posture is rotated upward by receiving an external force from the field side (for example, an obstacle such as a stone in the soil). In this case, since the external force is directly applied to the driving means, there is a problem that the driving means is easily damaged.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an agricultural working machine with a marker which can suppress damage to the driving means.

[0006]

A marker-equipped agricultural working machine according to claim 1 is a marker-equipped agricultural working machine that carries out a predetermined agricultural work and marks the agricultural field while moving in the field. And a marker body that can be switched to a non-working posture, a driving means that rotates the marker body, and a marker body that is disposed between the marker body and the driving means and that rotates when the driving means operates, but that is in the working posture. When the body receives an external force from the field side and rotates upward, the relay rotation body keeps a stopped state without rotating.

The marker body is disposed between the marker body and the drive means, and rotates when the drive means operates, but does not rotate when the marker body in the working posture receives an external force from the field side and rotates upward. Further, since the relay rotating body that keeps the stopped state is provided, it is possible to suppress the damage of the driving unit as compared with the conventional configuration.

The marker-equipped agricultural working machine according to claim 2 is the marker-equipped agricultural working machine according to claim 1, wherein when the marker body in the working posture is rotated upward by receiving an external force from the field side, The urging means for returning to the above state is provided.

Further, since the marker body in the working posture is provided with a biasing means for returning the marker body to the original state when the marker body receives an external force from the field side and rotates upward, the marker body in the working posture is moved by the biasing means. It is possible to properly restore the original state.

The marker-equipped agricultural working machine according to claim 3 is the marker-equipped agricultural working machine according to claim 1 or 2, further comprising an elastic holding means for assisting the driving means when the driving means switches the marker body to a non-acting posture. Be prepared.

Since the driving means is provided with an elastic holding means for assisting the driving means when the marker body is switched to the non-acting posture, the driving means can be miniaturized.

A marker-equipped agricultural working machine according to a fourth aspect is the marker-equipped agricultural working machine according to any one of claims 1 to 3, wherein the relay rotating body has a contact member that abuts against a stopper. The operation of the drive means is stopped based on the contact between the member and the stopper.

Since the operation of the drive means is stopped based on the contact between the contact member of the relay rotary body and the stopper, the structure is simplified as compared with the case where a separate position sensor or the like is used. It is possible to plan.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The construction of an embodiment of a marker-equipped agricultural working machine according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a farming machine with a marker. The farming machine 1 with a marker is a well-known three-point link mechanism T1 which is a working machine lifting and supporting device at the rear of a tractor T which is a traveling vehicle, for example. In the state of being connected via the tractor T, the farmland A is forwardly moved in the traveling direction (X direction in the drawing) by being pulled by the tractor T, while performing predetermined agricultural work, for example, multi-row sowing work on the farmland A. It is a tractor-type seeder with a marker in which a mark (for example, a groove) B for straight traveling is attached to A (see FIG. 6).

As shown in FIGS. 1 and 2, this marker-equipped agricultural working machine 1 is provided with a slightly elongated working machine main body 2 which is connected to the rear part of the tractor T via a three-point link mechanism T1, for example. ing.

The working machine main body 2 has a tractor connecting means 6 which is a traveling vehicle connecting means composed of a top pin 3, a lower pin 4, a frame 5 and the like, and a tractor T.
It has a rotatable input shaft 7 for inputting power from.

Further, the working machine main body 2 is a multi-row type for cultivating a field A and cultivating and cultivating land 11, and forming a sowing groove in the field A after cultivating and sowing seeds in the sowing groove. It has a seeding means 12 (for example, four-row type), and a slip-rotatable crushing roller 13 that crushes the surface of the field A after seeding.

The tillage leveling means 11 is a horizontal tilling shaft 15 which is a horizontal direction intersecting the traveling direction, a tilling claw 16 radially attached to this tilling shaft 15, and a cover plate for preventing the scattering of soil above. A ground leveling plate 19 and the like attached to the cover plate 17 via a rubber plate 18 so as to be vertically movable.

The seeding means 12 is a disc type groove forming body 21 for forming a sowing groove in the field A after cultivating and arranging at a position behind the ground leveling plate 19, a hopper 22 for storing seeds, and a seed from this hopper 22. It is composed of a feeding roll 23 that feeds the seeds by a fixed amount, a derivative 24 that guides the seeds fed by the feeding roll 23 to the sowing groove, and the like.

A right marker 30 is provided at the right end (the left end in FIG. 1) of the working machine main body 2 and the left end (the right end in the FIG. 1) of the working machine main body 2 in the moving direction. Is provided with a left marker 31.

The left marker 31 and the right marker 30 forming a pair of left and right are basically the same in structure except that they are symmetrically arranged. Therefore, the structure of the left marker 31 will be mainly described below. explain. The respective constituent members of the right marker 30 are designated by the same reference numerals as those of the left marker 31, and the description thereof is omitted.

As shown in FIGS. 3 to 5, the left marker 31 is actuated by turning in a predetermined direction (see FIG. 3).
3) and the non-acting posture (folding state shown in FIG. 5), that is, the marker body 33, that is, the working posture (marking) for projecting laterally from the working machine body 2 by, for example, downward rotation. The marker body 33 is switched to a grounding posture which is a posture and is rotated to the non-acting posture in a retracted state in which it does not project laterally from the work machine body 2.

The left marker 31 is operated by the power supply from a battery (not shown) to output power and to generate a marker body.
It is arranged between the driving means 34 for rotating the 33 in the vertical direction and the marker body 33 and the driving means 34. When the driving means 34 is operated, the driving means 34 rotates while being engaged with the driving means 34. When the body 33 receives an external force from the field A side (for example, an obstacle C such as a stone or a lump of soil in the field A) and rotates upward, the body 33 does not rotate but remains rotatable. It has a relay rotating body 35 which is a body.

Further, the left marker 31 is arranged between the marker body 33 and the relay rotating body 35 so as to urge the marker body 33 downward, and the marker body 33 in the working posture receives an external force from the field A side and moves upward. When rotated, the marker body 33 in its working posture is rotated downward by biasing to return it to its original proper state. The spring 37 has a substantially cylindrical shape as a tension spring, and the marker body 33 and the work. The marker body 33 is arranged between the machine bodies 2 so as to urge the marker body 33 upward, and when the driving means 34 switches the marker body 33 to the non-acting posture (when the marker body 33 rotates upward), the marker body 33 moves upward. And a gas spring 38 which is an elastic holding means for urging and assisting the driving means 34.

Here, first, the drive means 34 has, for example, a reversible motor 41 which is a drive source.
It is fixedly attached to an attachment body 43 fixed to a main pipe 42 in the left-right direction of the work machine body 2 via legs 44. A first gear 49, which is a rotary engagement body, is fixed to the output rotation shaft 48 in the front-rear direction of the motor 41 coaxially with the output rotation shaft 48.

The relay rotating body 35 has, for example, a cylindrical member 51 in the front-rear direction having a substantially cylindrical shape. The cylindrical member 51 is a pair of mounting plates of the mounting body 43 of the working machine main body 2 which are spaced apart from each other and face each other. It is rotatably fitted to the outer periphery of the first fixed shaft 53 in the front-rear direction spanned between the portions 45, 45.

A second gear 54, which is a rotary engaging member having a diameter larger than that of the first gear 49, is provided on the outer periphery of the cylindrical member 51 in the axial direction.
Is fixed coaxially with the tubular member 51, and the second gear 54 is
It meshes with the gear 49 and is always engaged.

Further, a first contact member 56 and a second contact member 57, which are contact members, are fixed to the outer peripheral portion of the second gear 54 in a state of being separated from each other. First contact member 56
Is a stopper formed of an elastic material such as rubber.
The second contact member, which comes into contact with and separates from the stopper 61,
Reference numeral 57 is for contacting with and separating from a second stopper 62 which is also a stopper formed of an elastic material such as rubber. Each of the stoppers 61, 62 is a bottom plate portion connecting the lower ends of the mounting plate portions 45 to each other. It is fixed at 46. Further, from a front surface which is one surface of the second gear 54, a projecting member 58 such as a substantially columnar dowel is integrally projected forward.

The marker body 33 has a first rotating arm 71 and a second rotating arm 72 formed of, for example, a cylindrical pipe (or a square pipe). And the first rotating arm
One end of 71 is rotatably connected to the outer periphery of the tubular member 51 of the relay rotating body 35, and one end of the second rotating arm 72 is attached to the mounting body 43.
The second fixed shaft 73 in the front-rear direction that is bridged between the mounting plate portions 45 of the
Is rotatably connected to the outer periphery of the.

Further, the marker body 33 has a connecting arm 75 having a stopper portion 75a having a substantially L-shaped cross section, and one end of the connecting arm 75 has the other end of the first rotating arm 71 in the front-back direction. Is pivotally connected via a pivot shaft 76, and the other end of the second pivot arm 72 is pivotally connected to a substantially central portion of the connecting arm 75 via a pivot shaft 77 in the front-rear direction. It is connected.

Further, on the other end side of the connecting arm 75,
A mounting member 78 is mounted so that the left and right positions can be adjusted, and a torsion spring 79 as a biasing body is mounted on the mounting member 78. The upper end of a support arm 80 is rotatably connected to the mounting member 78 via a pivot shaft 81 in the left-right direction, and the support arm 80 is constantly urged forward by a torsion spring 79. .

At the lower end of the support arm 80,
A marker member 83, which is a groove forming member that forms a marker portion having a substantially V shape in a plan view that moves in the soil of the field A to form a groove that serves as the mark B, is attached. The marker member 83 can be pivotally adjusted in the front-back direction with respect to the support arm 80. The first rotating arm 71, the second rotating arm 72, the connecting arm 75, the mounting member 78, the torsion spring 79, and the supporting arm.
An arm portion 70 that can be folded at 80 or the like is configured. The arm portion 70 has a substantially L shape when the marker body 33 is in a working posture, and has a substantially rectangular outer shape when the marker body 33 is in a non-working posture.

On the other hand, the end portion of the spring 37 is a relay rotating body.
The spring 37 is connected to the first contact member 56 of 35, and the other end of the spring 37 is connected to a protruding piece 85 protruding from a portion of the marker body 33 near one end of the first rotating arm 71.

The gas spring 38 is composed of a cylinder 86 in which nitrogen gas or the like is enclosed and a rod 88 which advances and retracts from the tip surface of the cylinder 86, and the base end portion of the cylinder 86 is the marker body 33. The second rotating arm 72 is rotatably connected to a projecting piece 87 projecting from a part of the second rotating arm 72 slightly near the center.

The tip of the rod 88, which moves forward and backward from the tip of the cylinder 86, is rotatably connected to one end of a rotary arm 89 of the working machine body 2, and the other end of the rotary arm 89 is connected to the other end. It is rotatably connected to the mounting plate portion 45 of the mounting body 43.

The mounting plate portion of the mounting body 43 of the working machine body 2
A stopper body 90 with which the portion of the marker body 33 near one end of the first rotating arm 71 abuts is fixed to 45. The stopper body 90 prevents the marker body 33 from rotating more than necessary and holds the marker body 33 in a non-acting posture.
It is made of an elastic material such as rubber.

On the other hand, FIG. 7 shows a block diagram of a control system of the agricultural working machine 1 with a marker. In FIG. 7, 91 is a control means such as a control box.
Motor 41 of the left marker 31, motor 41 of the right marker 30,
The operation means 92 and the switch 93 as the detection means are electrically connected to each other.

The operation means 92 is an operation box or the like arranged in the driver's seat of the tractor T, and is a mode setting operation section for setting either a manual mode or an automatic mode, a left marker selection button, and a right marker. It is composed of selection buttons and the like.

Further, the switch 93 is for detecting whether the working machine body 2 is located at the lower working position or the upper non-working position, and as shown in FIG. It is fixed to the frame 5 of the tractor connecting means 6. Then, the switch 93 is turned on / off by the operation of the actuating body 97 including the chain 94, the spring 95, the arm 96 and the like.

Next, the operation of the above embodiment will be described.

When performing a predetermined agricultural work, for example, multi-row sowing work, using the marker-equipped agricultural work machine 1, first, the tractor T is used.
The operator who rides on the work machine main body 2 is in a state in which both the marker body 33 of the right marker 30 and the marker body 33 of the left marker 31 are switched to the non-working posture and positioned above the work machine body 2 and The tractor T is operated in a state in which is lifted by the three-point link mechanism T and positioned at the upper non-working position, and moves to the work starting position at the end of the field.

Then, the operator riding on the tractor T switches the marker body 33 of the left marker 31 on the left side in the traveling direction to the working posture by, for example, a manual operation.

That is, when the operator on the tractor T appropriately operates the operating means 92 while the manual mode is set, the motor 41 of the driving means 34 of the left marker 31 is activated and the output of this motor 41 is output. The rotating shaft 48 rotates together with the first gear 49.

When the first gear 49 rotates, the second gear 54 of the relay rotating body 35 engaged with the first gear 49 moves in one direction (clockwise in FIG. 5) together with the first contact member 56 and the like. Turn to
The spring 37 is pulled by the first contact member 56,
As a result, the first rotating arm 71 of the marker body 33 is placed on the protruding member 58 of the relay rotating body 35, apart from the stopper body 90.

Then, the first rotating arm 71 remains on the protruding member 58, and the second gear 54 of the relay rotating body 35 remains.
Along with the rotation, the second rotation arm 72, the connecting arm 75, the support arm 80, the marker member 83, and the like rotate downward, and the marker body 33 is switched to the working posture by the downward rotation.

At this time, when the stopper portion 75a of the connecting arm 75 contacts the predetermined portion of the second rotating arm 72, the downward rotation of the marker body 33 is stopped, but the output of the motor 41 of the drive means 34 is stopped. Since the operation of the motor 41 is stopped on the basis of the contact between the first contact member 56 and the first stopper 61, the rotary shaft 48 is stopped by the first contact member 56 corresponding thereto. 1 stopper
Rotate until it contacts 61. That is, when the control means 91 determines that the first contact member 56 has contacted the first stopper 61 and the current value of the motor 41 has risen to the predetermined value, the motor 41 is controlled.
The power supply to the motor 41 is stopped and the operation of the motor 41 is stopped.

Next, the operator riding on the tractor T switches the manual mode to the automatic mode and then operates the three-point link mechanism T to lower the entire working machine body 2 to the working position. By lowering the working machine body 2, the marker body 33
The marker member 83 of the
The switch 93 is turned on.

Then, as shown in FIG. 6, when the marker-equipped agricultural working machine 1 is pulled by the traveling of the tractor T and moves in the traveling direction, the tillage leveling means 11 and the sowing means of the working machine body 2 are shown.
The multi-row sowing work is performed by 12 and the crushing roller 13, and a linear mark B is attached to the field A by the marker body 33 of the left marker 31 in the state where the working posture is switched.

During this work, for example, as shown in FIG.
When the marker body 33 in the working posture collides with an obstacle C in the soil of the field A, receives an external force from the obstacle C, and rotates upward, the relay rotating body 35 interlocks with the marker 33 body. It does not rotate, the stationary state is maintained, and the external force from the obstacle C is not applied to the drive means side.

When the work progresses and the tractor T reaches the end of the field, the operator on the tractor T actuates the three-point link mechanism T1 for the turn to bring the entire working machine main body 2 to the non-working position. increase. Then, the switch 93 is turned off, the motor 41 of the left marker 31 is controlled by the control means 91, and the marker body 33 of the left marker 31 is automatically switched from the working posture to the non-working posture.

That is, the motor 41 of the driving means 34 of the left marker 31 is operated under the control of the control means 91, and the motor 41
The output rotation shaft 48 of is rotated together with the first gear 49.

When the first gear 49 rotates, the second gear 54 of the relay rotating body 35 engaged with the first gear 49 moves in the other direction (counterclockwise in FIG. 3) together with the first contact member 56 and the like. ), The first rotating arm 71 is placed on the protruding member 58 of the relay rotating body 35.

Then, the first rotating arm 71 is pushed up while being placed on the projecting member 58, so that the second rotating arm 71 makes a second rotating motion as the second gear 54 of the relay rotating member 35 rotates. Arm 7
2, together with the connecting arm 75, the support arm 80, the marker member 83 and the like, is rotated upward, and thus the marker body 33 is switched to the non-acting posture by the upward rotation.

At this time, the first rotating arm 71 is moved to the stopper body 90.
The second contact member 57 and the second stopper 62 come into contact with each other shortly before the contact with the control means 91, and the operation of the motor 41 of the drive means 34 is stopped by the control of the control means 91 similar to the above based on this contact. To be done.

However, since the marker body 33 is beyond the fulcrum before the operation of the motor 41 is stopped, the marker body 33 moves by its own weight, the first rotating arm 71 contacts the stopper body 90, and the relay rotating body is moved. The protruding member 58 of 35 and the first rotating arm 71 are separated from each other.

After the turn, when the operator on the tractor T operates the three-point link mechanism T to lower the entire working machine main body 2 to the working position, the switch 93 is turned on and the control means 91 causes the right marker to move. 30 motors 41 controlled, right marker
The marker bodies 33 of 30 are automatically switched from the non-working posture to the working posture.

Then, the operator riding the tractor T operates the tractor T while looking at the mark B attached to the field A while ensuring the straightness so that the center of the tractor T in the width direction is aligned with the mark B. Then, the agricultural working machine 1 with a marker is moved in the traveling direction to perform the multi-row sowing work, and the marker B is attached by the marker body 33 of the right marker 30.

Similarly, with respect to the marker body 33 of the right marker 30, even if the marker body 33 in the working posture is rotated upward due to an external force from the obstacle C, the relay rotating body 35 is interlocked with the marker 33 body. Since it does not rotate and keeps the stopped state,
External force from the obstacle C will not be applied to the drive means side.

By repeating such an operation, the operator can perform an accurate multi-row sowing work over the entire field A. If it is desired to manually operate the left and right markers 30 and 31, the manual mode may be set. In the state where the manual mode is set, the motor 41 is controlled based on the operation of the operation unit 92 by the operator regardless of whether the switch 93 is on or off.

Further, according to the above-mentioned one embodiment, it is arranged between the marker body 33 and the driving means 34, and when the driving means 34 is operated, it rotates in conjunction with the motor 41. Since the relay rotating body 35 that keeps a stopped state without rotating when it receives an external force from the field side and rotates upward, damage to the motor 41 of the driving means 34 can be suppressed as compared with the conventional configuration.

Further, when the marker body 33 in the working posture is rotated upward by receiving an external force from the field side, the marker body 33 in the working posture is
Since the spring 37 for returning the 33 to the original state is provided, the marker body 33 in the working posture can be appropriately returned to the original state by the spring 37.

Further, since the motor 41 of the driving means 34 is provided with the gas spring 38 for assisting the motor 41 of the driving means 34 when the marker body 33 is switched to the non-acting posture, the motor 41 of the driving means 34 can be miniaturized. Can be planned.

The operation of the motor 41 of the driving means 34 is stopped based on the contact between the first contact member 56 and the first stopper 61 and the contact between the second contact member 57 and the second stopper 62. Therefore, compared to the case of using a separate position sensor,
The configuration can be simplified, the wiring can be simplified, and the assembly can be standardized.

Further, by operating the switch 93 according to the elevation of the working machine main body 2, a pair of left and right marker bodies 31 is formed.
Since automatic switching can be appropriately performed alternately, work efficiency can be improved.

Next, another embodiment of the marker-equipped agricultural working machine of the present invention will be described with reference to FIGS.

Agricultural working machine 1 with a marker shown in FIGS. 8 and 9.
Unlike the one shown in FIG. 3 etc., does not include a spring 37 as a biasing means. In addition, FIG. 8 and FIG.
Unlike the one shown in FIG. 3 and the like, the marker-equipped agricultural working machine 1 shown in FIG. 3 has a substantially cylindrical dowel or other first projecting member 101 forward from the front surface, which is one surface of the second gear 54 of the relay rotary body 35. And a second projecting member (corresponding to the projecting member 58) 102 formed of a cushioning member which is an elastic material such as rubber or sponge is integrally projecting toward the front. . The other components are basically the same as those of the marker-equipped agricultural working machine 1 shown in FIG. 3 and the like.

In the marker-equipped agricultural working machine 1 shown in FIGS. 8 and 9, when the marker body 33 is switched to the working posture,
When the motor 41 of the drive means 34 operates and the output rotation shaft 48 of this motor 41 rotates together with the first gear 49, this first gear
The second gear 54 of the relay rotating body 35 engaged with 49 rotates in one direction (clockwise in FIG. 9) together with the first projecting member 101 and the like.

The first protruding member 101 is the marker body 3
When contacting the first rotating arm 71 of 3, the entire marker body 33 is pushed up by the first protruding member 101. When the marker body 33 exceeds the fulcrum by this pushing up, this marker body 33
It rotates downward by its own weight and becomes the working posture shown in FIG. When the marker body 33 rotates downward due to its own weight, the marker body 33
Since the first rotating arm 71 does not come into contact with the second protruding member 102, an unreasonable force is not applied to the motor 41 of the driving means 34 via the relay rotating body 35.

When the marker body 33 is switched to the non-acting posture, the motor 41 of the driving means 34 is operated and the output rotation shaft 48 of the motor 41 rotates together with the first gear 49. The second gear 54 of the relay rotating body 35 engaged with the 49
The other direction with the protruding member 102 etc. (counterclockwise in FIG. 8)
Turn to.

The second protruding member 102 is used as the marker body 3
When the marker body 33 comes into contact with the first rotating arm 71 of 3, the entire marker body 33 is pushed up by the second projecting member 102 and pivots upward to exceed the fulcrum, and is supported by the stopper body 90 as shown in FIG. It becomes a non-working posture.

The first rotating arm 71 abuts on the stopper body 90 and jumps up to abut on the second projecting member 102.
Since the second projecting member 102 is formed of a buffer member, no unreasonable force is applied to the motor 41 of the drive means 34 via the relay rotating body 35.

Also in the agricultural working machine 1 with a marker shown in FIGS. 8 and 9, it is arranged between the marker body 33 and the driving means 34, and rotates in conjunction with the motor 41 when the driving means 34 is actuated. Since the marker body 33 is provided with the relay rotating body 35 that keeps a stopped state without rotating when the marker body 33 receives an external force from the field side and rotates upward, as compared with the conventional configuration, The same effects as those of the agricultural working machine with a marker 1 shown in FIG.

The marker-equipped agricultural working machine 1 is not limited to a marker-equipped seeding machine for performing sowing work, and is one that sprays fertilizer, chemicals or the like on the field A, or one that forms a semi-cylindrical ridge on the field A. , Any type of work machine may be used.

Further, the holding means for holding the marker body 33 is
It is not limited to the gas spring, for example, although not shown,
It may be a spring such as a compression spring.

[0076]

According to the first aspect of the present invention, the marker body is arranged between the marker body and the driving means and rotates when the driving means is activated, but the marker body in the working posture receives an external force from the field side and rotates upward. Since the relay rotating body that keeps the stopped state without rotating when moved is provided, it is possible to suppress damage to the driving means as compared with the conventional configuration.

According to the invention of claim 2, since the marker body in the working posture is provided with a biasing means for returning the marker body to the original state when the marker body receives an external force from the field side and rotates upward, the biasing means is provided. Thus, the marker body in the working posture can be appropriately returned to the original state.

According to the third aspect of the present invention, since the driving means is provided with the elastic holding means for assisting the driving means when the marker body is switched to the non-acting posture, the driving means can be miniaturized.

According to the fourth aspect of the invention, the operation of the drive means is stopped based on the contact between the contact member of the relay rotary body and the stopper, so that compared to the case where a separate position sensor or the like is used, for example. Thus, the configuration can be simplified.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an agricultural working machine with a marker according to the present invention.

FIG. 2 is a side view of the agricultural working machine with the same marker.

FIG. 3 is a front view of the left marker of the working posture of the agricultural working machine with the same marker.

FIG. 4 is a plan view of a left marker of the agricultural working machine with the same marker.

FIG. 5 is a front view of the left marker in the non-working posture of the agricultural working machine with the marker.

FIG. 6 is an operation explanatory diagram of the agricultural working machine with a marker.

FIG. 7 is a block diagram of a control system of the agricultural working machine with a marker.

FIG. 8 is a front view of the left marker in the working posture according to another embodiment of the agricultural working machine with the marker of the present invention.

FIG. 9 is a front view of the left marker in the non-working posture of the agricultural working machine with the same marker.

[Explanation of symbols]

1 Agricultural Working Machine with Marker 33 Marker 34 Drive Means 35 Relay Rotating Body 37 Spring 38 as Energizing Means Gas Springs 56, 57 as Elastic Holding Means 1st Contact Member and 2nd Contact Member 61 as Contact Member , 62 Stopper 1st stopper and 2nd stopper A Field B mark

Claims (4)

[Claims] 1. A farming machine with a marker for performing a predetermined farm work and marking the farm field while moving in the farm field, the marker body being capable of being switched between an acting posture and a non-acting posture by rotation, and the marker body. It is disposed between the drive means for rotating and the marker body and the drive means, and rotates when the drive means operates, but when the marker body in the working posture receives an external force from the field side and rotates upward. An agricultural working machine with a marker including a relay rotating body that keeps a stopped state without rotating. 2. The marker according to claim 1, further comprising an urging means for returning the marker body in the working posture to the original state when the marker body receives an external force from the field side and rotates upward. Agricultural work machine. 3. The agricultural working machine with a marker according to claim 1, further comprising a holding means for assisting the driving means when the driving means switches the marker body to a non-acting posture. 4. The relay rotating body has an abutting member that abuts against the stopper, and the operation of the drive means is stopped based on the abutting of the abutting member and the stopper. 1 to 3
An agricultural working machine with a marker according to any one of 1.