JPH05316884A - Rice transplanter - Google Patents

Abstract

PURPOSE:To smoothly and efficiently carry out feeding and unfolding of sheet members by simultaneously automatizing laying operation of the sheet members and planting operation of seedling. CONSTITUTION:A guiding member 37 which arranges sheet members CS, LS and RS at the central position and both the left and the right sides of a traveling machine body 1, respectively, joins the sheet members CS, LS and RS at a lower position of a rising and falling mechanism 8 behind rear wheels 4, upholds the sheets in the width direction of a planter 9 into a single sheet is horizontally installed. A driving roller 39 and a guide member 41 for feeding and introducing a paper sheet in a joined state to a field right before the planter are laid at the rear of the guiding member so that the sheet member can be fed and surely laid on a given position in the field without causing horizontal deviation and wrinkle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter for rice planting in a paddy field, in which the work of laying sheet members and the operation of planting seedlings can be automated at the same time to reduce labor required for cultivation management after planting seedlings.

[0002]

2. Description of the Related Art Conventionally, as a planting device progresses, a film is developed in the width direction of the planting device and laid on a paddy field, and at the same time, seedlings are planted at predetermined positions on the film. -60605.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The film shown in Japanese Patent Publication No. 11 is a thin vinyl film and can be arranged in a single roll below the parallel link mechanism in front of the planting device, and has the advantage of being easy to handle during planting work. On the other hand, there was a problem that the film laid on the rice field did not corrode and remained as it was until the harvest time, making it difficult to process and discard it. Therefore, the present applicant has tried to use a water-absorbent sheet member (for example, a paper sheet) which can be corroded after laying a rice field in place of the film, but the sheet member is thicker than the above film, which is inevitable. As the roll diameter increases, the weight also increases,
Arranging in a single roll has a poor handling property.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is a rice transplanter in which a planting device is erected up and down via a lifting mechanism behind a traveling machine body having front wheels and rear wheels. In the machine, support members for supporting a seat member are disposed at the center position and the left and right side positions of the traveling machine body, respectively, and the seats are installed at the lower position of the lifting mechanism at the rear of the rear wheel as the planting device advances. A guide member that joins the members and expands in the width direction of the planting device to form a single wide sheet is provided laterally, and a paper sheet in the joined state is provided behind the guide member on the rice field in front of the planting device. It is characterized in that guide members for guiding the feeding are arranged in parallel.

[0005]

The seat members arranged at the center position and the left and right side positions of the traveling machine body are sequentially fed out as the planting device progresses while receiving an appropriate braking force of the braking member provided above the seat member. The guide member is provided laterally below the lifting mechanism in the rear of the rear wheel, and is expanded in the width direction of the planting device to form a single wide sheet, which is then passed between the rear guide members. We reached the rice field just before the planting equipment,
It is pressed by each float of the advancing planting device and laid closely on the paddy field, and at the same time, appropriate places of the sheet member are perforated by planting claws to plant seedlings. Therefore, the work of laying the sheet member and the work of planting the seedlings can be automatically and efficiently performed in a continuous operation. The sheet member laid on the rice field absorbs the water on the rice field and adheres to the rice field to prevent overgrowth of weeds at the early stage of growth and the collapse of planted seedlings.
After about 50 days, it will dissolve in the muddy water in the rice field. Therefore, it is possible to carry out the usual cultivation management work and harvest work thereafter.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described based on the rice transplanter shown in the drawings. FIG. 1 is a side view showing the entire rice transplanter. The traveling machine body 1 has a prime mover 2 installed in the front part, front wheels 3, 3 and rear wheels 4, 4 in the lower part, and front wheels 3, 3 in the upper part. An elevating mechanism 8 including a steering wheel 5 and a driver's seat 6 for steering the vehicle
The planting device 9 is erected so that it can be moved up and down via the. The lifting mechanism 8 is composed of a parallel link mechanism including one top link 8A and a pair of left and right lower links 8B, 8B.
The planting device 9 is mounted on the rear side of the parallel link mechanism so as to be able to roll left and right, and is equipped with a seedling mount 9A and a planting claw 9B. A horizontal stay 10 is laterally provided at the center of the front part of the traveling machine body 1, and support members 11 and 11 project from the horizontal stay 10 so as to be movable and fixed in the lateral direction.
A central sheet member (paper sheet roll) CS is rotatably supported between them. Pipe member 1 to support members 11 and 11
2 and 12 are fixedly installed, and a stay 13 is vertically slidably inserted through the pipe members 12 and 12, and a roller-shaped braking member that suppresses free rotation and extension of the central sheet member CS through the stay 13. 14 is rotatably supported. The braking member 14 is made of a rubber or resin pipe material. Reference numeral 15 is a cover that covers the upper portion of the central sheet member CS, and the cover 15 is a front under cover 17 that is supported by support members 16 and 16 projecting downward from the traveling machine body 1.
1 is pivotally supported 18 so as to be openable and closable in a solid line state and a chain line state in FIG. When the pipe members 12 and 12 are fixed to the cover 15 side and the braking member 14 is mounted on the cover 15 side in a suspended manner, the mounting and setting work of the braking member 14 and the cover 15 described later are performed. The work of covering can be done at the same time, and the work can be done more efficiently.

The front undercover 17 is provided to prevent the central sheet member CS from hanging down and to prevent water from getting wet from the paddy field.
The central sheet member CS is attached to the supporting members 16 and 16 for supporting the 7
A guide roller 19 for inserting the is provided. A box-shaped tunnel-shaped guide case 20 is disposed between the front wheels 3 and 3 and the rear wheels 4 and 4 behind the front undercover 17. The front portion of the guide case 20 is supported by suspending a support member 21 from the front axle cases 3A, 3A by utilizing front axle cases 3A, 3A for supporting the front wheels 3, 3. The rear part of 20 is a rear axle case 4A for supporting the rear wheels 4, 4,
The supporting member 22 is hung and supported from the rear axle cases 4A, 4A by utilizing the 4A, and the members are used in common and the mounting structure is simplified. The above guide case 20
2 is narrower than the treads of the front wheels 3, 3 and the rear wheels 4, 4 as shown in FIG. 2, and wider than the arrangement width space of the left and right lower links 8B, 8B of the lifting mechanism 8. The steering of 3 can be combined with the operation of the steering wheel 5 and the side clutch disengagement / brake braking operation of the rear wheels 4 to enable the sudden turning operation of the traveling vehicle body 1. Further, guide rollers 23 and 24 for guiding the central sheet member CS are provided at the front end and the rear end of the guide case 20, respectively, and the rear under cover 2 is provided behind the guide case 20.
5 are supported by the rear wheel covers 4B, 4B and are continuously provided.

Located on the left and right sides of the rear part of the driver's seat 6,
Left and right sheet members (paper sheet rolls) LS and RS are provided respectively. The driver's seat 6 is supported by a seat support frame 6A provided upright on the traveling machine body 1, and a horizontal member 6 in the left-right lateral direction that supports various operation levers above the seat support frame 6A.
B is fixed. Brackets 26, 26 are detachably fixed to both sides of the horizontal member 6B.
6, a stay 26A supporting the rear wheel cover 4B and a support member 26B described later are integrally connected. Then, the horizontal stay 27 is inserted and fixed to the support members 26B, 26B, and the horizontal stay 27 is positioned laterally behind the driver's seat 6. Support members 28, 28,
28, 28 are erected and fixed so that they can be laterally moved and fixed laterally, and a left sheet member (paper sheet roll) LS and a right sheet member (paper sheet roll) are provided between the support members 28, 28.
RS is rotatably supported. Support members 28, 28
Pipe members 29, 29 are fixed to the pipe member 29, and a stay 30 is vertically slidably inserted through the pipe members 29, 29.
A roller-shaped braking member 31 that restrains the left seat member LS and the right seat member RS from freely rotating is rotatably supported on the stay 30. The braking member 31 is made of a pipe material such as rubber or resin. Reference numerals 32 and 32 denote covers for covering the left side sheet member LS and the right side sheet member RS, respectively. The cover 32 is a tip end of support members 33, 33 projecting from the rear of the traveling machine body 1 and indicated by a solid line in FIG. It is pivotally supported 34 so as to be openable and closable between a state and a chain line state. If the pipe members 29, 29 are fixedly mounted on the cover 32 side and the braking member 31 is mounted on the cover 32 side in a suspended manner, the mounting and setting work of the braking member 31 and the cover 32 will be described later. The sheet covering operation can be performed at the same time, and the work of loading, exchanging, and replenishing the sheet member can be performed more efficiently. The central seat member CS and the left seat member LS
Also, the support structure of the right seat member RS is configured in common. That is, the horizontal shaft 35 is horizontally projected and fixed to the upper portion of the support member 11 (28) standing from the horizontal stay 10 (27), and the center pipe of the sheet member is attached to the distal end of the horizontal shaft 35. A bearing 36 having an inclined engagement portion 36A that engages with CP is externally fitted so as to be rotatable and slidable.

A rotating roller-shaped guide member 37, which is positioned below the elevating mechanism 8 behind the rear wheel 4 and aligns a plurality of sheet members to guide and guide the rear member at a constant incident angle, is supported by a shaft 38. The driving roller 39 for feeding out the sheet member is fixed to the driving shaft 40 in parallel behind the driving roller 39, and the sheet member is clamped below the driving roller 39 at the upper moving position from below. A guide member 41 that holds the seat member and guides and guides the seat member rearward at a lower position is vertically opposed to a shaft 42 so as to be swingable. For vertically swinging operation of the guide member 41, the operation wire 42A and the spring 42B are connected to both ends of the guide member 41 so that the driver's seat 6
It can be operated remotely with the operation lever of the planting clutch, and it is configured to move up in conjunction with the disengagement operation of the planting clutch and to move down in conjunction with the entering operation to improve operability. You may do it. Further, behind the drive roller 39, a cutting mechanism 44 for cutting a sheet member, which is provided with a handle 43 on the upper portion, is provided so as to be vertically movable. The guide member 37, the drive roller 39, the guide member 41, and the cutting mechanism 44 are mounted and supported on the side of the planting device 9 via the support member 45, and are integrated when the planting device 9 rolls along the rice field. It can be rolled in parallel with the planting device 9 and is always parallel to the rice field. A sprocket 46 is fixedly mounted on one end of the drive shaft 40 so that the chain 4
7 and a sprocket 48 are interlocked and connected to an electric motor 49 mounted and supported on the side of the planting device 9.

The front ends of the central float CF, the left float LF, and the right float RF mounted below the planting device 9 are arranged as close to the rear of the cutting mechanism 44 as possible. The lateral width of the central float CF is set to a dimension corresponding to the lateral width of the central sheet member CS. In addition, the support pipes 5 protruding from both sides of the planting device 9
A base portion of a support shaft 52, which rotatably supports a pressing roller 51 for closely adhering the sheet member to the rice field, is rotatably fitted in the 0, and a long hole 53 and a support shaft 52 formed in the support pipe 50. The up and down swing of the pressing roller 51 is restricted to a certain range by the locking pin 54 which is penetrated through.

Next, the operation of the rice transplanter according to the present invention will be described. The paddy fields to be planted are scavenged by the usual method, and the flooding at the time of planting is made shallow so that the rice field surface is not exposed. Prior to the start of work, the central sheet member CS is loaded on the support members 11, 11 at the front of the traveling machine body 1. Then, the front end of the sheet member is pulled out to pass through between the upper surface of the front undercover 17, the guide rollers 19, 23, the guide case 20, and the guide roller 24, and is guided rearward, along the upper surface of the rear undercover and thereafter. Guide member 3
7 and the drive roller 39 and the guide member 41 are inserted below the cutting mechanism 44. Next, the left seat member L is attached to the support members 28, 28 arranged on both sides of the driver's seat 6.
S, the right side sheet member RS is loaded, the tips of the sheet members LS and RS on both sides are pulled out downward, and along the upper surface of the rear wheel cover, the upper surfaces of both side edges of the central sheet member CS are slightly overlapped (about 10 (Overlap of about millimeter)
The lower part of the guide member 37 is circumvented, and the drive roller 39 and the guide member 41 are inserted so as to reach the lower part of the cutting mechanism 44. The three sheet members CS, LS, RS are thus formed from the lower portion of the guide member 37 into a single wide sheet member, and the single sheet member is guided on the upper surface thereof. The member 41 is moved upward until it comes into contact with the drive roller 39 by an appropriate means, and the drive roller 39 and the guide member 41 are moved.
The sheet members CS, LS, RS are sandwiched and fixed by and.

Next, when the planting is started, the planting device 9
And the floats CF, LF, and RF are grounded on the rice field, the electric motor 49 is appropriately driven to drive the drive roller 39.
Is rotated and the sheet members CS, LS, RS are fed back to the floats CF, LF, RF and transferred to the rice field just before the floats, and the leading ends of the following floats CF, LF, RF are the upper surfaces of the sheet members CS, LS, RS. To be able to tread. After that, the guide member 41 is moved downward by a suitable means so as to be separated from the drive roller 39, and the sheet member CS,
While the LS and RS are unpinched, the traveling machine body is advanced slightly to bring the seat members CS, LS, and RS into close contact with the paddy field, and at the same time, the tips of the seat members CS, LS, and RS reach the rear faces of the floats CF, LF, and RF. Let it get out.
At this time, since the width of the central float CF is configured to be approximately the same as the width of the central sheet member CS, the left and right sheet members LS that are overlapped and connected to the upper surfaces on both sides of the central sheet member CS by the central float CF. , RS can reliably press the overlapping portion of the inner edges, and therefore the left and right sheet members L
The upward warping of the inner edges of S and RS is eliminated, and the central sheet member CS is surely pressed against the rice field to promote the water absorbing action of the sheet member and bring it into close contact with the rice field. Further, the outer edges of the left and right sheet members LS and RS are pressed by the own weight of the pressing rollers 51 and 51 arranged on both sides of the planting device 9 to prevent warping upward and to be surely pressed to the rice field. As a result, the water absorbing action of the sheet member is promoted and the sheet member is quickly brought into close contact with the rice field. In the above case, the planting device 9 is described in a state where the planting device 9 is descended and grounded on the rice field. However, the electric motor 49 is appropriately driven and the drive roller 39 is rotated while the planting device 9 is elevated from the rice field. The sheet members CS, LS, RS are extended backward, and the tip ends of the sheet members CS, LS, RS are extended in advance to the rear surface of each float CF, LF, RF, and the extended sheet members CS, LS,
Sheet members CS, LS, RS in which the front end side of RS is laid on the rice field and then the planting device 9 is lowered and laid
May be depressed by each of the floats CF, LF, and RF.

As described above, after the seat members CS, LS, RS are stepped on by the floats CF, LF, RF, the traveling machine body 1 is advanced and the planting work is started. The seat members CS, LS, RS arranged on the front center of the traveling machine body 1 and on both sides of the driver's seat 6 as the traveling machine body 1 moves forward include the front undercover 17, the guide case 20, the rear undercover 25, The rear wheel cover 4B and the like prevent the front wheel 3 and the rear wheel 4 and the like from getting wet with water, and are reliably aligned with these cover members, and the tip side thereof is as described above in the floats CF, L.
In the state of being stepped on by F and RF, they are sequentially withdrawn while resisting the braking force of the braking members 14 and 31, merged at the portion of the guiding member 37, and expanded into a single sheet in the width direction.
The sheet member is laid on the lower surface of F, LF, and RF, and the sheet member absorbs the water of the rice field and becomes a wet state, and is closely fixed to the rice field. The floats CF, LF, and RF step on the upper surface of the seat member so that they can slide smoothly, and the central float CF senses the automatic adjustment of the planting part up and down or the front wheels 3, 3 and the side floats LF and RF. The work of leveling the wheels of the rear wheels 4 and 4 can be reliably performed through the sheet member to flatten the rice field. Then, the bottom end portion of the mat seedling placed on the seedling placing table 9A of the planting device 9 is scraped off by the planting claw 9B one by one, and planted on the sheet members CS, LS, RS laid evenly. A hole of a predetermined size is opened at the tip of the nail 9B, and at the same time, seedlings are planted in the hole. The seedlings perforated and planted on the sheet member are
The area around the leaf stem is held by the inner peripheral edge of the hole, and there is little risk of falling over by the sheet member, and it is possible to plant in a relatively upright state even on a weak field surface.
Further, the support member 45 for supporting the guide member 37, the guide member 41 and the like is provided on the side of the planting device 9 and rolls together with the planting device 9, so that the three sheet members CS, LS, RS are arranged on the rice field. Are always parallel to each other, and as a result, there is no fear that wrinkles will occur on the paper sheet, and the sheet is smoothly unwound and laid along the rice field while maintaining a single unfolded state.

Further, at the time of headland traveling, after the traveling of the traveling machine body 1 and the planting work are stopped while the planting device is being lowered and grounded, the guide member 41 is driven by an appropriate means. The sheet member CS, LS, RS is clamped and fixed by the driving roller 39 and the guide member 41 until it comes into contact with the sheet 39. Then, the sheet member is cut by pushing down the grip portion 43 of the cutting mechanism 44. The sheet member has a driving roller 39 and a guide member 41 on the front side of the cutting mechanism 44.
It is clamped and fixed by and the rear side is also clamped and fixed by each of the floats CF, LF, RF and the field, and the cutting mechanism 44 and each of the floats CF, LF, RF.
Since it is as close as possible to the seat member, the seat member is maintained in a tension state with the front and rear spans minimized,
In this state, the cutting mechanism 44 receives the cutting action, so that the cutting is surely performed. After cutting the sheet member in this manner, the planting device 9 is raised while the sheet member is held between the driving roller 39 and the guide member 41, and the traveling machine body 1
To move forward and turn the headland. Then, the feeding of the sheet member and the restart of the planting work in the next stroke after the turning are performed by the same operations as described above. At this time, each sheet member C
Before reaching the drive roller 39, the S, LS, and RS are unfolded into a single sheet by the guide member 37 located in front of the drive roller 39 so that the incident angles of the sheet members CS, LS, and RS with respect to the drive roller 39 are constant. Each sheet member CS,
Lateral displacement of LS and RS can be prevented, and the sheet member can be reliably laid at a predetermined position on the rice field without wrinkling.

As the sheet member supplied to the rice transplanter according to the present invention, any sheet member may be used as long as it has water absorbing property and corrosive property. It is possible to use what is sold as “core material”. It is a recycled paper that uses 100% tanned waste paper because it is unbleached. It is slightly thick and hard and has strong elasticity. As described above, the sheet rollers CS, LS are rotated by rotating the drive roller 39 which is used when the sheet members are fed into and fed out from the guide case 20 prior to the start of work, and when the planting is started or restarted.
It is possible to smoothly perform the work of feeding the RS backward and transferring it to the paddy field just before the floats CF, LF, and RF.

The loading and replenishing work of the sheet members CS, LS, RS to the support member 11 (28) is performed as follows. That is, as shown in [FIG. 4], one of the support members 11 (28) (on the left side of [FIG. 4]) has a horizontal stay 10 (27).
The support member 11 (28) on the other side (the right side in FIG. 4) which is opposed to the seat member CS, LS, RS is fixed to the inner circumference of the core pipe CP. The horizontal shaft 35 provided on one of the supporting members 11 (28) is inserted into the supporting member 11 (28) to hold the guide, and then the other supporting member 11 (2).
8) is moved to the left from the state of the chain line, and the sheet member C
By inserting and holding the horizontal shaft 35 provided in the other support member 11 (28) on the inner circumference of the center pipe CP of S, LS, RS, the sheet member can be temporarily held. afterwards,
Further, when the other supporting member 11 (28) is moved to the left side and fixed at the position indicated by the solid line, the sheet members CS, LS, R
The inclined engaging portions 36 of the bearing 36 are provided at both ends of the center pipe CP of S.
A is automatically fitted and engaged, and the seat members CS, LS, RS are rotatably and securely held by the bearing 36 with respect to the support member 11 (28), and even in the case of a slightly heavy seat member, the horizontal axis Due to the presence of 35, loading and replenishing work can be easily performed. Then, the braking member 14 (31) is attached to the pipe member 12 (29) from above the seat members CS, LS, RS.
, The outer periphery of the seat member is pressed by the weight of the braking member 14 (31), and the seat member can be prevented from being unexpectedly extended due to the vibration of the traveling machine body 1 or the like. Further, by providing the cover 15 (32), it is possible to protect from strong winds and prevent water from getting wet during rainfall.

[0017]

As described above, according to the present invention, in the rice transplanter in which the planting device is vertically erected via the elevating mechanism behind the traveling machine body having the front wheels and the rear wheels, the traveling machine body is provided. Support members for supporting the sheet members are disposed at the central position and the left and right side positions, respectively, and the sheet members are joined to the lower position of the elevating mechanism at the rear of the rear wheel by advancing the planting apparatus and joining the sheet members. A guide member that is expanded in the width direction of the attaching device and is formed into a single wide sheet is provided laterally, and a guide member that guides the merged paper sheet to the paddy field immediately before the planting device is provided behind the guide member. By arranging them side by side, each sheet member is surely fed out sequentially with the progress of the planting device, and is surely expanded in the width direction of the planting device by the guiding member so as to be joined and formed into a single wide sheet, and thereafter, Incident angle to the rear guide member Constant to lateral sheet members can be guided to the rear of the planting device will be able to accurately laid on the paddy to prevent wrinkles and the like. Therefore, the work of laying the sheet member and the work of planting the seedlings can be automatically and efficiently performed in a continuous operation.

[Brief description of drawings]

FIG. 1 is an overall side view of a rice transplanter.

FIG. 2 is an overall plan view of a rice transplanter.

FIG. 3 is a rear view of an essential part showing a layout and a laid state of a sheet member.

FIG. 4 is a front view of a main portion showing a support structure of a sheet member.

FIG. 5 is an enlarged side view of an essential part showing a state in which a sheet guide device is freely extended.

FIG. 6 is an enlarged side view of an essential part showing a drive-feeding state of the sheet guide guide device.

FIG. 7 is an enlarged front view of an essential part showing a drive-feeding state of the sheet guide device.

[Explanation of symbols]

 1 Traveling Aircraft 9 Planting Device 11,28 Supporting Member 14,31 Braking Member 15,32 Cover 20 Guide Case 37 Guide Member CF Central Float LF Left Float RF Right Float CS Central Seat Member LS Left Seat Member RS Right Seat Member

Claims (1)

[Claims] 1. A rice transplanter in which a planting device is erected up and down via an elevating mechanism behind a traveling machine body having front wheels and rear wheels, in a center position and both left and right positions of the traveling machine body. A support member for supporting the sheet member is provided, and the sheet members are merged with the progress of the planting device at a position below the elevating mechanism at the rear of the rear wheel, and the sheet member is expanded in the width direction of the planting device. -Shaped broadening sheet, a guide member is provided laterally, and a guide member is provided in parallel behind the guide member for feeding and guiding the joined paper sheets to the rice field just before the planting device. ..