JP4627926B2 - Marker for work equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a marker for marking a reference line of a work process with a marker at the time of sowing work or fertilization work, and more particularly to the configuration of a sowing machine marker to be mounted on a three-wheeled riding management machine.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in order to sow a plurality of seeds simultaneously in a sowing operation, a sowing machine in which a tool bar is horizontally provided on a working machine of a traveling vehicle and a plurality of sowing devices are mounted in parallel on the tool bar has been known.
On the other hand, during transplanting and sowing operations in rice transplanters and submerged direct sowing machines, the marker arm is moved up and down alternately left and right so that the adjacent lines on the forward and return paths coincide with other lines. At the position where the center passes, a reference line is attached with a marker when traveling on the forward path, and when traveling on the return path after turning from the forward path, it is allowed to travel along the standard line so as to form a regular line in a straight line. Technology is also known.
[0003]
[Problems to be solved by the invention]
However, the conventional marker is attached to both sides of the support frame of the planting part or the sowing part (work machine) of the rice transplanter, and the marker is attached so that the rise of the marker is interlocked with the rise of the work machine. Since the release lever is rotated to release the stopper of the marker at the raised position and to move downward by its own weight, the structure is complicated.
On the other hand, markers are not attached to conventional tractors and management machines, and markers are not attached to seeding machines or fertilizer machines. It was difficult to do.
[0004]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0005]
That is, according to the first aspect of the present invention, brackets are provided on both sides of a tool bar for mounting a work machine on a hitch of a traveling vehicle, and a base plate having a marker arm and a balancer arm attached thereto is rotatably attached to the bracket. A marker is attached to the tip of the balancer arm, an operation member extending to the operating part is attached to the tip of the balancer arm, and a balance connecting member to be connected to the other balancer arm on the left and right to balance the weight of the left and right markers. is there.
[0006]
According to a second aspect of the present invention, the bracket is provided with a lock mechanism for fixing the marker arm at the storage position.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the invention will be described.
FIG. 1 is a perspective view in which a seeder equipped with a marker of the present invention is mounted on a three-wheeled riding management machine, FIG. 2 is a perspective view during the same operation, and FIG. 3 is a side view of a working machine mounting device portion of the riding management machine, 4 is a side view of the seeding device, FIG. 5 is an enlarged plan view of the right end of the tool bar, FIG. 6 is an enlarged front view of the right balancer arm, and FIG. 7 is an enlarged front view of the left balancer arm.
[0008]
First, an overall configuration of an embodiment in which a seeder marker according to the present invention is mounted on a three-wheel riding management machine will be described with reference to FIGS. The three-wheel riding management machine is provided with a driving unit 15 at the rear part of the body frame 1 extending in the front-rear direction, the engine 6 is mounted at the rear end part of the body frame 1, and traveled and shifted by a transmission case 17. The rear wheels 3 and 3 are driven via a rear wheel drive case 5 from a rear axle case disposed below the mission case 17.
[0009]
The transmission case 17 is configured to transmit power to the front wheels 2 via a power transmission shaft disposed in the body frame 1. A front case 7 is provided at the front of the body frame 1, and the lower part of the front case 7 is provided. A front axle case 8 is mounted so as to be pivotable to the left and right with the vertical direction as an axis, and a front wheel 2 of one wheel is supported on the front axle case 8 so that it can be driven to constitute a three-wheel drive vehicle. The upper part of the front case 7 is covered with a cover 16.
[0010]
The engine 6 is covered with a bonnet 10, and a vehicle body cover 11 that covers the transmission case 17 and the rear wheels 3 and 3 is disposed in front of the bonnet 10. 12 is placed, and a steering column 13 is erected on the fuselage frame 1 in front of the driver's seat 12. A steering handle 14 protrudes above the upper portion of the steering column 13, an accelerator lever (not shown) protrudes on the right side of the steering column 13, and a side clutch pedal 9 is disposed on the lower side of the steering column 13. Has been.
[0011]
A work implement mounting device 29 is disposed on the abdomen between the front wheel 2 and the rear wheels 3. As shown in FIG. 3, the work implement mounting device 29 has a pair of left and right brackets 18, 18 projecting downward from the front lower portion of the machine body frame 1 (the rear position of the front case 7). Support shafts 24 and 25 are laid horizontally above and below. The front portions of the upper links 19 and 19 are pivotally supported at both ends of the upper support shaft 24, and the front portions of the lower links 20 and 20 are pivotally supported at both ends of the lower support shaft 25. The upper links 19 and 19 are provided at an interval substantially equal to the left and right width of the body frame 1. The upper link 19 can be raised and rotated until it is located on the side of the machine body frame 1 so that the work machine 26 can be lifted. Furthermore, the middle part of the upper link 19 and the lower link 20 is connected by the connection arm 27, and the parallel link is comprised.
[0012]
Further, the base of the elevating cylinder 22 is pivotally supported by the brackets 18, 18, and the rod tip of the elevating cylinder 22 is pivotally supported by a connecting pin 28 that connects the middle part of the lower links 20, 20 and the lower end of the connecting arm 27. The elevating cylinder 22 is interposed at the center position in the left-right direction of the parallel link.
[0013]
A hitch 21 as a mounting member is pivotally supported at the rear end of the upper link 19 and the rear end of the lower link 20, and a work implement 26 is mounted on the hitch 21. As shown in FIG. 1, a bar-like tool bar 23 extends from the hitch 21 in the left-right direction, and a plurality of work implements 26 can be mounted on the central part and the left-right side part of the tool bar 23 so that the attachment positions can be changed. In this way, multiple items can be managed.
[0014]
In the present embodiment, the working machine 26 is a fertilizer sowing machine. However, the working machine 26 may be provided alone or as a fertilizer 31 alone. In addition, the seeding device 30 is not limited to a three-wheel management machine, and can be attached to a two-wheel or four-wheel management machine or a tractor.
The sowing device 30 and the fertilizer 31 are attached to the toolbar 23 in parallel, and the sowing device 30 and the fertilizer 31 have a mounting frame 32 fixed to the toolbar 23 as shown in FIG. A fertilizer feeding device 51 of the fertilizer application device 31 is fixed to the rear part of the mounting frame 32, a hopper 53 is placed on the fertilizer feeding device 51, and a fertilizer hose (not shown) communicates with the lower portion of the fertilizer feeding device 51. Thus, it extends to the side of the groove forming disk 40. The fertilizer feeding device 51 accommodates a feeding roll, and the feeding roll passes through the feeding drive shaft 52 and is disposed in parallel to the toolbar 23 via a sprocket, a chain, and the like from a driving wheel 54 fixed on the toolbar 23. It is set as the structure which transmits motive power to feeding apparatus 51 * 51 ....
[0015]
A seeding frame 35 is pivotally connected to the lower portion of the mounting frame 32 via parallel links 33 and 34. A seed feeding device 36 is fixed to the sowing frame 35. The seed feeding device 36 has a structure in which a seed dish is accommodated. The seed feeding device 36 penetrates the feeding drive shaft, and the seed driving device 36 is rotated by the rotation of the feeding drive shaft. It is configured to rotate and drive out seeds.
[0016]
A hopper 37 is placed on the seed feeding device 36, and a guide hose 38 is communicated with the lower portion of the seed feeding device 36. A disc-shaped groove forming disk 40 and a cover plate 41 are rotatably disposed on the sowing frame 35 through a support frame 39. A guide hose 38 is extended between the groove forming discs 40 so that the seeds are dropped into the grooves formed by the groove forming discs 40.
[0017]
Further, the parallel links 33 and 34 are arranged at the front height and the rear height, and diagonally between the pivot shaft 42 at the rear end portion of the parallel link 33 and the pivot shaft 43 at the front end portion of the parallel link 34. An urging spring 44 is arranged to balance the weight of the grooving disk 40. With this configuration, the grooving disk 40 and the guide hose 38 are moved up and down in parallel by the parallel links 33 and 34 so as to follow the unevenness of the ground surface.
[0018]
A driving wheel 45 is disposed behind the covering plate 41, and the driving wheel 45 is rotatably supported by a rotating shaft 47 on a roller frame 46 fixed to the rear portion of the sowing frame 35. Lugs 45a, 45a,... Project radially from the outer periphery of the drive wheel 45 so that the lugs 45a do not slip when running with the lugs 45a standing in the soil. Further, a scraper 48 is provided on the outer peripheral portion of the drive wheel 45 so as to scrape off the soil or the like adhering to the outer periphery of the drive wheel 45.
[0019]
With this configuration, when the work machine 26 including the seeding device 30 and the fertilizer 31 is pulled by the riding management machine, the drive wheel 45 is rotated, and the sprocket in the chain case 49 is rotated by the rotation of the drive wheel 45. The drive shaft of the seed feeding device 36 is rotated through the chain, and the rotation of the drive shaft rotates the feed roll of the seed feeding device 36 so that the seed in the hopper 37 is fed out from the guide hose 38. It is guided to the groove disk 40 and falls.
[0020]
The rotation of the driving wheel 54 rotates the feeding drive shaft 52 of the fertilizer feeding device 51 via the sprocket and chain in the chain case, and the feeding roll of the fertilizer feeding device 51 is rotated by the rotation of the feeding drive shaft 52. Is rotated, the fertilizer in the hopper 53 is fed out, guided from the fertilizer hose to the groove forming disk 40 and sprayed.
[0021]
Next, the structure of the marker of the present invention provided on both sides of the toolbar 23 will be described. Since the markers have substantially the same configuration on the left and right, only the right side will be described.
As shown in FIGS. 1 and 5, a pipe frame 23a is attached to the outside of the tool bar 23 so that the expansion / contraction position can be adjusted, and the width of the tool bar 23 can be changed in accordance with the mounting position and the seeding width of the seeding device 30. Yes. A fixed frame 61 protrudes forward from the front surface of the outer end of the pipe frame 23a, and a bracket 62R with a bottom having a U-shape in plan view is fixed to the outer surface of the front end of the fixed frame 61, and a concave portion of the bracket 62R. A base plate 63R having a U-shape in side view is inserted therein, and is pivotally supported on the bracket 62R by a rotation shaft 66. One end of a balancer arm 64R is fixed on the rear surface of the base plate 63R, and is arranged so as to be vertical at a position where the marker arm 65R is raised.
[0022]
A disc-shaped marker 67R is rotatably supported at the tip of the marker arm 65R through a support frame 66R, and a reference line is provided at a position where the center of the machine passes through the return path during the sowing operation.
[0023]
As shown in FIGS. 1 and 6, a connecting hole 64Ra is provided at the tip of the balancer arm 64R, and one end of the balance connecting member 68 is fixed to the connecting hole 64Ra to connect the other left and right connecting holes 64La. Thus, the balancer arms 64L and 64R on both the left and right sides are connected. A U-shaped locking member 69 projects from the balancer arm 64 </ b> R in the direction of the body frame 1, and an operation member 70 </ b> R is connected to the locking member 69. The other end of the operating member 70R extends to the operating part. In this embodiment, the operating member 70R is disposed on the right side of the steering handle 14 via a support member 71 provided on the body frame 1. It is passed through a support member 73 fixed to the frame 72 and further fixed to a fixing member 75 fixed to a rear frame 74 disposed on the right rear side of the driver's seat 12. However, in this embodiment, the balance connecting member 68 is constituted by a chain, and the operation member 70R is constituted by a rope. However, the balance connecting member 68 may be constituted by a wire, a rod or the like. An annular handle 70Ra is formed on the operation member 70R so that the operator can easily pull the operation member 70R near the right side of the driver seat 12.
[0024]
Further, the base plate 63R and the bracket 62R are provided with a locking mechanism for fixing the marker arm 65R in the retracted position. In this embodiment, the pin hole 63Ra is formed on a concentric circle centering on the rotation shaft 66 of the base plate 63R. 63Rb is opened, the pin hole 63Ra outside the base plate 63R is aligned with the pin hole provided in the marker arm 65R at the working position, the marker arm 65R and the base plate 63R are fixed with the fixing pin 80, and the marker arm 65R The marker arm 65R and the balancer arm 64R are moved in conjunction with each other via the base plate 63R while maintaining a constant included angle θ formed by the balancer arm 64R.
Further, like the marker arm 65 ′ of FIG. 6, when retracted, the marker arm 65R is pivoted upward with the pivot shaft 66 as a fulcrum, and is provided on the pin hole 63Rb inside the base plate 63R and the bracket 62R. The pin hole 62Ra and the pin hole provided in the marker arm 65R are combined, the marker arm 65R, the base plate 63R, and the bracket 62R are fixed by the fixing pin 80, and the marker arm 65R and the balancer arm 64R are parallel to each other. It is made to fix in the state where it stood up.
[0025]
In such a configuration, the operation position of the marker during work will be described.
For example, as shown in FIG. 2, FIG. 6 and FIG. 7, when a reference line is provided with a marker 67L on the left side in the advancing direction during the sowing operation, when the right operation member 70R is pulled, the right balancer arm 64R rises and the right marker The arm 65R is raised while maintaining the included angle θ with the right balancer arm 64R, and the marker 67R is not in contact with the ground surface. On the other hand, the left marker arm 65L loses its pulling force due to the left operation member 70L and rotates downward due to its own weight, and the left balancer arm 64L rotates downward about the rotation shaft 66 in conjunction with the left marker arm 65L. The left marker 67L is grounded.
In this operation, the right balancer arm 64R and the left balancer arm 64L are connected by the balance connecting member 68. Therefore, when one marker arm is lifted, the other marker arm is pulled in the direction of lowering by its own weight. Therefore, the operation force is small.
[0026]
By configuring in this way, at the time of sowing work, the operation member 70L or 70R is pulled at the start end or the turning end, and the marker arms 65L and 65R are alternately moved up and down alternately, so that the marker 67L or 67R is moved in the forward path and the return path. A reference line can be attached to the field surface. From the driver's seat onwards, fertilizing and sowing work can be performed at regular intervals in a straight line by proceeding from the driver's seat so that the center of the aircraft passes through the reference line as a mark.
When the work is finished or stored, the fixing pins 80 and 80 are pulled out, and the marker arms 65L and 65R and the balancer arms 64L and 64R are erected in the vertical direction in parallel, so that the pin holes 63Lb and 63Rb and the pin holes 62La and By fixing 62Ra and the pin holes provided in the marker arms 65L and 65R and inserting the fixing pins 80 and 80, they can be fixed in the retracted position.
[0027]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
That is, as shown in claim 1, brackets are provided on both sides of a tool bar for mounting a work machine on a hitch of a traveling vehicle, and a base plate having a marker arm and a balancer arm attached to the bracket is rotatably attached. Because the marker is attached to the tip of the arm, the operation member that extends to the operating part is attached to the tip of the balancer arm, and the balance connection member that connects to the other balancer arm on the left and right to balance the weight of the left and right markers At the time of sowing work, the operation member can be pulled and the marker arm can be moved up and down alternately on the forward path and the return path so that a reference line can be attached to the field with the marker. Since the left and right markers are connected by a connecting member for balance, the operation force is small and the operation can be easily performed.
[0028]
Further, as shown in claim 2, since the bracket is provided with a lock mechanism for fixing the marker arm to the storage position, at the end of the work, the marker arm and the balancer arm can be fixed in a standing state, The marker can be stored compactly during movement.
[Brief description of the drawings]
FIG. 1 is a perspective view of a seeder equipped with a marker of the present invention mounted on a three-wheeled riding management machine.
FIG. 2 is a perspective view during operation.
FIG. 3 is a side view of a work machine mounting device portion of the riding management machine.
FIG. 4 is a side view of a seeding device.
FIG. 5 is an enlarged plan view of the right end portion of the tool bar.
FIG. 6 is an enlarged front view of a right balancer arm.
FIG. 7 is an enlarged front view of a left balancer arm.
[Explanation of symbols]
15 Operation part 23 Tool bar 26 Work implement 62 Bracket 62a Pin hole 63 Base plate 63a / 63b Pin hole 64 Balancer arm 65 Marker arm 67 Marker 68 Balance connecting member 70 Operation member

Claims (2)

Brackets are provided on both sides of the tool bar for mounting the work machine on the hitch of the traveling vehicle, a base plate with a marker arm and a balancer arm attached to the bracket is rotatably attached, a marker is attached to the tip of the marker arm, and a balancer is attached. A marker for a working machine, wherein an operation member extending to a driving portion at a tip of an arm and a balance connecting member for connecting to the other balancer arm for balancing the weight of the left and right markers are attached. The work machine marker according to claim 1, wherein the bracket is provided with a lock mechanism for fixing a marker arm at a storage position.

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