JPH0591219U - Rice transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] The sheet material laying work and the seedling planting work are automated at the same time, and the sheet member can be unrolled and expanded smoothly and efficiently. [Structure] Support members 11 (28) for supporting seat members CS, LS, RS are arranged at the front center position of the traveling machine body 1 and on both left and right sides of the driver's seat 6, and the seat support member at the front center is arranged. The box-shaped guide case 20 for inserting and guiding the central sheet member CS loaded in the front wheel 3 and the rear wheel 4 is provided below the traveling machine body.
Since the front portion of the guide case 20 is supported by the front axle case 3A and the rear portion is supported by the rear axle case 4A, the central seat member CS is surely prevented from being damaged. It is possible to prevent the central sheet member from being sequentially fed out as the planting device progresses, and to lay it properly on the rice field. Further, since the guide case can be attached by simplifying the dual use of members, the traveling property of the traveling body can be maintained in a good condition.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rice transplanter for rice planting in a paddy field, which can automate the work of laying sheet members and the operation of planting seedlings at the same time to save labor for cultivation management after planting seedlings.

[0002]

[Prior Art]

 Japanese Patent Application Laid-Open No. 2-60511 discloses a device in which a film is developed in the width direction of the planting device and laid on a rice field along with the progress of the planting device, and at the same time, seedlings are planted at predetermined positions of the film. Are known.

[0003]

[Problems to be solved by the device]

 The film disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 2-60511 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 can be handled during planting work. Although it has the advantage of being simple, the film laid on the rice field does not corrode and remains as it is until the harvest time, and there is a problem in that it is difficult to process and dispose of it. Therefore, the applicant has tried to use a water-absorbent sheet member (for example, a paper sheet) which can be corroded after laying a rice field instead of the film, but the sheet member is thicker than the above film. However, the roll inevitably becomes large in diameter and heavy in weight, and disposing it in the form of a single roll is inferior in handleability.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention relates to 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. A support member that rotatably supports a roll-shaped sheet member is provided at each of the center position and both left and right positions, and a box-shaped guide case that inserts and guides the sheet member loaded in the front center sheet member is provided. , The front part of the guide case is supported by the front axle case supporting the front wheel and the rear part of the guide case is installed under the traveling machine body between the front wheel and the rear wheel in the longitudinal direction. It is characterized by being supported by a rear axle case that supports the rear wheels.

[0005]

[Action]

 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 advances while receiving an appropriate braking force of a braking member provided above the seat member, and rear wheel rear In the lower part of the elevating mechanism, the guide member is laterally deployed in the width direction of the planting device to merge and form a single wide sheet, and then it is passed through between the rear guide members and planted. It reaches the rice field right before the device and is laid down closely on the rice field by being trampled by each float of the planting device that is advancing, and at the same time, the planting claws are used to perforate the appropriate portions of the sheet member for planting seedlings. .. Therefore, the work of laying sheet members and the work of planting seedlings can be automatically and efficiently performed in a continuous operation. The sheet material laid on the rice field absorbs the water on the rice field and adheres to the rice field to prevent overgrowth of weeds and the fall of planted seedlings in the early stage of growth. It will dissolve in the muddy water inside. Therefore, it is possible to carry out the usual cultivation management work and harvest work thereafter.

[0006]

【Example】

 An embodiment of the present invention will be described based on a 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. A handle 5 for manipulating 3 and a driver's seat 6 are provided, and a planting device 9 is vertically installed via a lift mechanism 8 configured to be driven and lifted by a hydraulic cylinder mechanism 7 at the rear. The ascending / descending mechanism 8 is composed of a parallel link mechanism composed of one top link 8A and a pair of left and right lower links 8B, 8B. The table 9A and the planting claw 9B are equipped. A horizontal stay 10 is laterally provided at the center of the front part of the traveling machine body 1, and support members 11, 11 are projectingly provided on the horizontal stay 10 so that the positions thereof can be moved and fixed in the left and right lateral directions, and between the support members 11, 11. A central sheet member (paper sheet roll) CS is rotatably supported on the. Pipe members 12 and 12 are fixed to the support members 11 and 11, and a stay 13 is vertically slidably inserted into the pipe members 12 and 12, and the stay 13 is freely rotated and rotated. A roller-shaped braking member 14 that suppresses the feeding 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 the tip of a front under cover 17 supported by supporting members 16 and 16 projecting below the traveling machine body 1 (see FIG. 1). It is pivotally supported 18 so that it can be opened and closed in a solid line state and a chain line state. If the pipe members 12 and 12 are fixedly mounted on the cover 15 side and the braking member 14 is mounted on the cover 15 side in a suspended manner, the mounting work of the braking member 14 and the cover described later are performed. The work of covering 15 can be performed at the same time, and the work can be performed 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 front undercover 17 is attached to the supporting members 16 and 16 for supporting the front undercover 17. A guide roller 19 for inserting the central sheet member CS is provided. Between the front wheels 3 and 3 and the rear wheels 4 and 4 behind the front under cover 17, a box-shaped tunnel-shaped guide case 20 is arranged long in the front-rear direction. 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 portion of 20 is supported by using the rear axle cases 4A, 4A that support the rear wheels 4, 4 by suspending the support member 22 from the rear axle cases 4A, 4A. The dual-use members are used to simplify the mounting structure. As shown in FIG. 2, the guide case 20 is narrower than the treads of the front wheels 3, 3 and the rear wheels 4, 4 and wider than the arrangement width space of the left and right lower links 8B, 8B of the lifting mechanism 8. The steering of the front wheels 3 can be combined with the operation of the steering wheel 5 and the side clutch disengagement / brake braking operations 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 undercover 25 is provided at the rear of the guide case 20 and the rear wheel covers 4B and 4B. It is erected on a line and is lined up.

Left and right seat members (paper sheet rolls) LS and RS are disposed on the left and right sides of the rear portion of the driver's seat 6, 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 lateral member 6B for supporting various operation levers is fixed above the seat support frame 6A. Brackets 26, 26 are detachably fixed to both sides of the horizontal member 6B, and a stay 26A for supporting the rear wheel cover 4B and a support member 26B described later are integrally connected to the bracket 26. There is. A lateral stay 27 is fixedly inserted through the support members 26B and 26B, and the lateral stay 27 is positioned laterally behind the driver's seat 6. Supporting members 28, 28, 28, 28 are vertically fixed to the lateral stay 27 so that their positions can be laterally moved and fixed laterally, and a left side sheet member (paper sheet roll) LS and a right side are provided between the supporting members 28, 28. A sheet member (paper sheet roll) RS is rotatably supported. Pipe members 29, 29 are fixed to the support members 28, 28, and a stay 30 is vertically slidably inserted into the pipe members 29, 29, and the left seat member LS and the right seat member RS are inserted into the stay 30. A roller-shaped braking member 31 that suppresses the free rotation of is rotatably supported. The braking member 31 is made of a rubber or resin pipe material. Reference numerals 32 and 32 denote covers for covering the left side seat member LS and the right side seat member RS from above, and the cover 32 is provided at the tips of the support members 33, 33 projecting rearward of the traveling machine body 1 (see FIG. 1). It is pivotally supported 34 so that it can be opened and closed between a solid line 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 described later and the cover will be described. Since the work of covering 32 can be performed at the same time, the work of loading, exchanging, and replenishing the sheet member can be performed more efficiently. The central sheet member CS, the left side sheet member LS, and the right side sheet member RS have a common support structure. That is, the horizontal axis 35 is provided above the support member 11 (28) standing upright from the horizontal stay 10 (27) along the horizontal installation direction of the horizontal stay 10 (27), that is, the position movement direction of the support member 11 (28). Is horizontally fixed to the horizontal shaft 35, and a bearing 36 having an inclined engaging portion 36A for engaging with the core pipe CP of the sheet member at the tip end of the horizontal shaft 35 is externally fitted so as to be rotatable and slidable. Has been done.

A rotating roller-shaped guide member 37, which is positioned below the elevating mechanism 8 behind the rear wheel 4 to guide and guide a plurality of sheet members with a constant incident angle to the rear member, 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 located below the driving roller 39 at the upper moving position. A guide member 41 that holds the pinching force more and opens the seat member at the lower position to guide and guide the seat member backward is disposed on a shaft 42 so as to be vertically swingable. The vertical swinging operation of the guide member 41 is such that the operation wire 42A and the spring 42B are connected to both ends of the guide member 41 and can be remotely operated by the operation lever of the driver's seat 6, and it is planted to improve the operability. It may be configured such that it is moved up in conjunction with the clutch disengagement operation and is moved down in conjunction with the engagement operation so as to be interlocked with the planted clutch operation lever. 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. These guide member 37, drive roller 39, guide member 41, and cutting mechanism 44 are mounted and supported on the side of the planting device 9 via a support member 45, and are integrated when the planting device 9 rolls along the rice field. It can be rolled as desired and is always parallel to the rice field along with the planting device 9. A sprocket 46 is fixedly attached to one end of the drive shaft 40, and is interlocked with an electric motor 49 mounted and supported on the planting device 9 side via a chain 47 and a sprocket 48.

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 bases of the support shafts 52 that rotatably support the pressing rollers 51 for bringing the sheet member into close contact with the rice field are rotatably fitted in the support pipes 50 protruding from both sides of the planting device 9, A vertical hole 53 formed in the support pipe 50 and a locking pin 54 penetrating the support shaft 52 regulate the vertical swing of the pressing roller 51 within a certain range.

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 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 and 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. The lower part of the guide member 37 and the part between the drive roller 39 and the guide member 41 are inserted to reach the lower part of the cutting mechanism 44. Next, the left-side seat member LS and the right-side seat member RS are loaded on the support members 28, 28 arranged on both sides of the driver's seat 6, and the front ends of the seat members LS, RS on both sides are pulled downward to the upper surface of the rear wheel cover. Along the upper side of the central sheet member CS, the upper surface of both side edges of the central sheet member CS is slightly overlapped (overlap of about 10 mm) so that the lower part of the guide member 37 is detoured and the space between the driving roller 39 and the guide member 41 is detoured. To the lower side of the cutting mechanism 44. In this manner, the three sheet members CS, LS, RS are formed into a single wide sheet member from the lower portion of the guiding member 37, and the single sheet member is placed on the upper surface thereof. The guide member 41 is moved upward by an appropriate means until it comes into contact with the drive roller 39, and the drive roller 39 and the guide member 41 sandwich and fix the sheet members CS, LS, and RS.

Next, when the planting is started, the planting device 9 is lowered and the electric motor 49 is appropriately driven while the floats CF, LF, RF are grounded on the rice field, and the drive roller 39 is rotated. 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 tips of the following floats CF, LF, RF tread on the upper surfaces of the sheet members CS, LS, RS. Be able to glide. 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 traveling machine body is slightly advanced with the sandwiching of the seat members CS, LS, RS released, and the seat members CS, LS, RS are removed. And the tip of the sheet members CS, LS, RS are extended to the rear surface of the floats CF, LF, RF. At this time, since the width of the central float CF is configured to be substantially the same as the width of the central sheet member CS, the left and right sheet members LS that are overlapped and connected to both upper surfaces of the central sheet member CS by the central float CF. , RS, the overlapping portions of the inner edges of the sheet members can be reliably pressed, so that the inner edges of the left and right sheet members LS, RS are not warped upward, and the central sheet member CS is reliably pressed against the field to ensure that the sheet members are not pressed. It promotes water absorption and makes it adhere to the rice field. Further, the outer edges of the left and right sheet members LS, RS are pressed by the weights of the pressing rollers 51, 51 disposed on both sides of the planting device 9 to prevent upward warping, and are surely pressed against 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 was described as being in a state of being lowered and grounded on the rice field, but 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 to the rear, and the front ends of the sheet members CS, LS, RS are previously extended to the rear surfaces of the respective floats CF, LF, RF, and the extended sheet members. The tip side of CS, LS, RS is laid on the paddy field, and then the planting device 9 is lowered so that the laid sheet members CS, LS, RS are pressed by the floats CF, LF, RF. May be.

As described above, after the seat members CS, LS, RS are depressed 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 a front undercover 17, a guide case 20, and a 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 surely fitted to these cover members, and the tip side thereof is stepped on by the floats CF, LF, and RF as described above. In this state, the members are sequentially pulled out while resisting the braking force of the braking members 14 and 31, merged at the guide member 37 and expanded into a single sheet in the width direction, and laid on the lower surfaces of the floats CF, LF, and RF. As a result, the sheet member absorbs the water on the rice field and becomes a moist state, so that the sheet member is firmly attached 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 detects the automatic adjustment of the planting part up and down, or the side floats LF and RF front wheels 3, 3 and. 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 of the mat seedling placed on the seedling placing table 9A of the planting device 9 is scraped off by the planting claws 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 attachment claw 9B, and at the same time, seedlings are planted in the hole. The seedlings perforated and planted in the sheet member are held in the condition that the circumference of the leaf stem is held by the inner peripheral edge of the hole, and there is little risk of falling over due to the sheet member, and the seedlings are planted in a relatively upright state even on a weak field surface. It is possible to turn it on. 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, The LS and RS are always parallel, and as a result, there is no fear that wrinkles will occur on the paper sheet, and the LS and RS can be smoothly extended and laid along the paddy field while maintaining a single unfolded state.

Further, at the time of headland traveling, after stopping the traveling and planting work of the traveling machine body 1 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 sandwiched and fixed by the driving roller 39 and the guide member 41 until the sheet member CS, LS, RS is brought into contact with the roller 39. Then, the sheet member is cut by pushing down the grip portion 43 of the cutting mechanism 44. The sheet member is clamped and fixed on the front side of the cutting mechanism 44 by the drive roller 39 and the guide member 41, and also on the rear side. The float CF, LF, and RF are sandwiched and fixed by the surface, and the cutting mechanism 44 and the floats CF, LF, and RF are as close to each other as possible, so that the seat member has a minimum front and rear span. The tensioned state is maintained in the state of being shortened as much as possible, and the cutting action of the cutting mechanism 44 is received in this state, 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 is moved forward to turn the headland. .. Then, after the turning, the sheet member is fed out and the planting work is restarted in the next process by the same operation as described above. At this time, each sheet member CS, LS, RS is unfolded into a single sheet by the guide member 37 located in front of the driving roller 39 before reaching the driving roller 39, and each sheet member CS, LS, RS is moved relative to the driving roller 39. The incident angle can be kept constant, lateral displacement of each sheet material CS, LS, RS can be prevented, and the sheet member can be securely 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 is water-absorbing and corrosive. It is a recycled paper that uses 100% of yellow-brown waste paper for unbleaching, and it is slightly thick and hard and has a strong elasticity. As described above, the sheet members CS, LS, RS are rotated by supplying / feeding the sheet member into the guide case 20 prior to the start of the work and rotating the drive roller 39 which is performed when the planting is started or restarted. It is possible to smoothly carry out the work of feeding back to the paddy field just before the floats CF, LF and RF.

Further, the work of loading and replenishing the seat members CS, LS, RS with respect to the support member 11 (28) is performed as follows. That is, as shown in FIG. 4, one (left side of FIG. 4) supporting member 11 (28) is fixed to the horizontal stay 10 (27), and the other opposite (right side of FIG. 4). ), The support member 11 (28) is retracted to the state of a chain line, and the inner circumference of the center pipe CP of the sheet members CS, LS, RS is set to the horizontal axis 35 provided on one support member 11 (28). The other supporting member 11 (28) is then moved to the left side from the state of the chain line so that the other supporting member 11 is attached to the inner circumference of the center pipe CP of the sheet members CS, LS, RS. By inserting and holding the horizontal shaft 35 provided in (28), the sheet member can be temporarily held. After that, when the other supporting member 11 (28) is moved to the left side and fixed at the position indicated by the solid line, the inclined engaging portions 36A of the bearing 36 are provided at both ends of the center pipe CP of the sheet members CS, LS, RS. The seat members CS, LS, RS are rotatably and securely held by the bearing 36 with respect to the support member 11 (28) so as to be fitted and engaged automatically. Depending on the presence, it is possible to easily carry out loading and replenishing work. Then, when the braking member 14 (31) is inserted into the pipe member 12 (29) from above the seat members CS, LS, RS, the braking member 14 (31) is always in contact with the outer periphery of the seat member by its own weight. It can be surely pressed down, and unexpected extension of the sheet member due to vibration of the traveling machine body 1 can be prevented. Further, by providing the cover 15 (32), it is possible to protect from strong wind and prevent damage due to wind, or damage due to water getting wet during rainfall. Especially when the sheet member is composed of paper sheets, if it is kept in a dry state without being wet by water until it is laid on the rice field, the sheet member will have a strong elasticity and the sheet member can be smoothly fed and conveyed. Can be done.

[0017]

[Effect of the device]

 As described above, according to the present invention, in a rice transplanter in which a planting device is vertically movable via an elevator mechanism behind a traveling machine body having front wheels and rear wheels, the front central position of the traveling machine body is A support member that rotatably supports a roll-shaped sheet member is provided at each of the left and right sides, and a box-shaped guide case that guides the sheet member loaded in the front center sheet member is run. The front case of the guide case is supported by the front axle case that supports the front wheel, and the rear part of the guide case is attached to the rear wheel. By being supported by the supporting rear axle case, the guide case reliably covers the surroundings in the vertical and horizontal directions as the seat member passes between the front wheels and the rear wheels under the traveling vehicle close to the rice field. Protected from water or wind Damage to the sheet reliably prevented Te, sequentially reliably feed the sheet member with the progress of the planting device can be accurately laid paddy. Moreover, since the guide member is also mounted by being used as a solid component that is indispensable for the traveling machine body, the mounting member can also be used in a simple manner, and the traveling machine body can be maintained in good wetland running performance. The aircraft can run smoothly. Therefore, the work of laying sheet members and the work of planting 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)

[Scope of utility model registration request] 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. A box-shaped guide case, in which a support member for supporting the seat member is disposed at each of both side positions and which guides the seat member loaded in the seat member at the center of the front portion, is provided below the traveling machine body with front wheels and rear wheels. The front part of the guide case is supported by the front axle case that supports the front wheels, and the rear part of the guide case is supported by the rear axle case that supports the rear wheels, even though it is long in the front-rear direction. A rice transplanter that features.