JPH0595222U - Rice transplanter - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To smoothly and efficiently deploy the seat members. [Structure] Support member 1 for supporting seat members CS, LS, RS at a central position of traveling machine body 1 and at both left and right positions
1, 28 are provided, and the sheet members CS, LS, RS are merged with the progress of the planting device 9 at a position below the elevating mechanism 8 behind the rear wheel 4 and expanded in the width direction of the planting device 9. Then, a guide member 37 formed into a single wide sheet is provided laterally, and a guide member 41 is provided behind the guide member 37 for guiding the joined paper sheets to the rice field just before the planting device 9. The central sheet member guide tool 25-1 supported on the traveling machine body side is arranged at a position corresponding to the central sheet member CS passing position in front of the guiding member 37, and the left and right sheet members LS above the guiding member 37. The right and left sheet member guides 8-1 supported on the elevating mechanism 8 side are arranged at positions corresponding to RS passage points.

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 vertically installed via a lifting mechanism behind a traveling machine body having front wheels and rear wheels, and a central position of the traveling machine body is provided. And a support member for supporting the seat member at each of the left and right positions, and the seat members are joined to the lower position of the elevating mechanism at the rear of the rear wheel as the seating devices progress as the seating device advances. A guide member that expands in the width direction and forms a single wide sheet is installed horizontally, and a guide member that guides the merged paper sheet to the rice field just before the planting device is arranged behind the guide member. Further, a central seat member guide tool supported on the traveling machine body side is provided at a position corresponding to a central seat member passage position in front of the guide member, and left and right seat member passage positions above the guide member. Considerable position Is that you were provided with left and right seat member guiding member which is supported on the lifting mechanism side in which the features.

[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 progresses while receiving an appropriate braking force of a braking member provided above the seat member. Each sheet member is guided by the sheet member guiding tool disposed at a position corresponding to the passage position of the sheet, and reaches the guiding member laterally provided below the lifting mechanism at the rear of the rear wheel. It is unfolded in the width direction of the plant and merges into a single wide sheet.After that, it passes between the rear guide members and reaches the paddy field in front of the planting device, where it is trampled by each float of the planting device. It is laid tightly on the paddy field, and at the same time, seedlings are planted by punching appropriate places on the sheet member with planting claws. Therefore, the work of laying sheet members and the work of planting seedlings can be automatically and efficiently performed in a continuous operation. Even when the planting device is raised on a headland or the like, each sheet member is lifted together with the planting device without sagging or lateral displacement by the sheet member guide, and after the turning is completed, the planting device is lowered and grounded. The sheet members can be smoothly fed out when the work is restarted. 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.

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. Incidentally, guide collar portions 19A, 19A are provided on the outer circumferences of both ends of the guide roller 19 to prevent the central sheet member CS from laterally displacing and allow the central sheet member CS to pass through. 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. A roll-shaped guide tool 25-1 is disposed above the rear undercover 25, and is freely rotatable at the tips of the support members 25-2 and 25-2 fixed to the rear axle cases 4A, 4A. It is supported. In addition, guide flanges 25-1A and 25-1A are provided on the outer circumferences of both ends of the guide member 25-1, which allow the central sheet member CS to be fed out while preventing lateral displacement. The rear undercover 25 is arranged along the rear extension line of the guide case 20, but it may be arranged so as to be inclined upward along the feeding path of the central sheet member CS.

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. 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 roll-shaped guide tool 8-1 is disposed below the left-side sheet member LS and the right-side sheet member RS supported between the support members 28, 28. The guide tool 8-1 is rotatably supported by the tip of a support member 8-2 fixed to the top link 8A of the lifting mechanism 8. It is to be noted that, on the outer periphery of the guide tool 8-1, there is a plan to prevent the lateral displacement of the left side sheet member LS and the right side sheet member RS while allowing the feeding-out passage. Inner collar portions 8-1A, 8-1A, 8-1A, 8 ─ 1A is provided. 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 freely rotatable around a shaft 38. It is supported and laterally arranged. Guide flanges 37A, 37A, 37A, 37A are provided on the outer periphery of the guide member 37 to prevent the left-side sheet member LS and the right-side sheet member RS from laterally shifting and allow them to be fed out. Then, a drive roller 39 for feeding out the sheet member is fixed to the drive shaft 40 in parallel behind the guide member 37, and the sheet member is held below the drive roller 39 at the upper moving position from below by sandwiching pressure. An inner member 41 which opens the seat member at the lower position and guides and guides the seat member backward is arranged so as to be vertically swingable by a shaft 42. In addition, in front of the guide member 41, facing the lower side of the guide member 37, an auxiliary guide member 37-1 in the form of a rotating roller is horizontally arranged so as to freely rotate, and a shaft 42 is provided via a stay 42-1. The guide member 41 is supported by and is vertically movable in association with the vertical swing of the guide member 41. Guide flanges 37-1A and 37-1A are provided on the outer circumferences of both ends of the auxiliary guiding member 37-1, to prevent the central sheet member CS from laterally shifting and to allow it to be fed out. The vertical swinging operation of the guide member 41 can be remotely operated by the operation lever of the driver's seat 6 by connecting the operation wires 42A and the springs 42B to both ends of the guide member 41. 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. The guide member 37, the drive roller 39, the guide member 41, and the cutting mechanism 44 are mounted and supported on the planting device 9 side through the 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. Reference numeral 55 is a coil spring for biasing the pressing roller 51 against the rice field.

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 leading end of the sheet member is pulled out and passed between the upper surface of the front undercover 17 and the guide rollers 19, 23, the guide case 20, and the guide roller 24 to guide it backward, and the guide member 25 on the upper surface of the rear undercover 25. After circumventing --2, the drive roller 39 and the guide member 41 are inserted from between the guide member 37 and the auxiliary guide member 3737-1 on the rear side to reach below the cutting mechanism 44. Next, the left-side seat member LS and the right-side seat member RS are loaded into 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 out downward to the rear wheel cover 4B. Along the upper guide tool 8-1, slightly overlap (overlap margin of about 10 mm) on the upper surfaces of both side edges of the central sheet member CS so as to bypass the lower part of the guide member 37 and drive. The roller 39 and the guide member 41 are inserted so as to face the lower part of the cutting mechanism 44. In this way, the three sheet members CS, LS, and RS are guided by the guide roller 19, the guide tool 25-1, the auxiliary guide member 37-1, and the guide tool 8-1, and the guide member 37. It is possible to prevent the lateral displacement due to the action and to feed it out. The guide member 37 is formed from a lower portion of the guide member 37 into a wide sheet member having a single sheet shape, and the sheet member having the single sheet is placed on the upper surface thereof. 41 is moved up by 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, 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 own weight of the pressing rollers 51, 51 arranged on both sides of the planting device 9 and the urging force of the coil spring 55 to prevent them from warping upward. The sheet member is surely pressed against the paddy field to promote the water absorbing action of the sheet member, so that the sheet member is quickly brought into close contact with the paddy 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. .. The seat members CS, LS, RS are constructed as follows so that the middle of each sheet member CS, LS, RS does not sag as the planting device 9 rises. That is, even if the planting device 9 is moved up and down, the central sheet member CS is divided into upper and lower parts with the guide tool 25-1 as the base point, so that the tension state during feeding out during the planting work is maintained. Further, the left and right sheet members LS and RS are maintained in a tension state by the guide tool 8-1 provided integrally with the elevating mechanism 8 even if the planting device 9 is moved up and down. Then, after the turning, the sheet member is fed out and the planting work is restarted in the next stroke 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 drive roller 39, as described above. LS and RS are guided by the guide roller 19, the guide tool 25-1, the auxiliary guide member 37-1, and the guide tool 8-1, and the guide member provided on each of the guide members 8-1 and 37, so that the guide flange portion prevents the lateral displacement from occurring. Further, the guide member 37 and the guide flange of the auxiliary guide member 37-1 finally rectify and align them without lateral deviation, and the incident angle of each sheet member CS, LS, RS with respect to the drive roller 39. The sheet members CS, LS, RS can be prevented from being laterally displaced, and the sheet members 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 erected up and down via an elevator mechanism behind a traveling machine body having front wheels and rear wheels, the center position of the traveling machine body is A support member for supporting the sheet member is disposed at each of the left and right sides, and the sheet members are joined to the lower position of the elevating mechanism at the rear of the rear wheel as the planting apparatus advances to join the sheeting apparatus. A guide member that is expanded in the width direction and formed into a single wide sheet is installed horizontally, and a guide member that guides the joined paper sheet to the front of the planting device is provided behind the guide member. In addition, a central sheet member guide tool supported on the traveling body side is disposed at a position corresponding to the central sheet member passage point in front of the guide member, and the left and right sheet member passage point phases above the guide member are provided. At this position, By arranging the left and right sheet member guides supported on the descending mechanism side, it is possible to hold and guide each sheet member in a state without lateral displacement before joining, and the sheet members are sequentially moved as the planting device progresses. The sheet can be reliably fed out, and the laying of the field can be reliably performed without causing wrinkles on the sheet member. Moreover, even if the planting device is moved up and down while turning the headland, it is possible to smoothly carry out the turning work and the planting / seat member laying work without sagging the sheet member due to the presence of the guide tool. 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 the seat member guide device in a freely extended state.

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

FIG. 7 is an enlarged front view of an essential part showing the arrangement of the guide member and the auxiliary guide member.

FIG. 8 is an enlarged front view of an essential part showing a drive-feeding state of the sheet member guide device.

[Explanation of symbols]

 1 Traveling Aircraft 8-1 Guide Tool 9 Planting Device 11,28 Supporting Member 14,31 Braking Member 15,32 Cover 20 Guide Case 25-1 Guide Tool 37 Guide Member CF Center Float LF Left Float RF Right Side Float CS Center 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, 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 wide sheet is provided laterally, and a guide member for feeding and guiding the confluent paper sheet to the rice field in front of the planting device is provided in parallel behind the guide member. A central sheet member guide tool supported on the traveling body side is disposed at a position corresponding to the central sheet member passing position in the front, and is supported on the lifting mechanism side at positions corresponding to the left and right sheet member passing positions above the guide member. Left A rice transplanter equipped with the right sheet member guide.