JPH063021U - Rice transplanter - Google Patents

Abstract

(57) [Abstract] [Purpose] While keeping the manufacturing cost low with a simple configuration,
Even when the seedling is spliced, even a soft seedling mat can be accurately and smoothly set on the seedling mounting table 85 without being caught by the vertical carrier. [Structure] A seedling guide body 10 extending from the front end portion in the conveying direction to the rear end side is supported at a mounting position of a vertical feeding device 9 provided at an intermediate portion of the seedling placing table 85 in the seedling feeding direction. Can be moved in and out of a guide position for advancing to the outermost surface of conveyance of the vertical feeding device 9 and a non-guide position for receding, and the seedling guide body 10 is advanced to the guide position when the seedling is spliced to the seedling placing table 85. I chose

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rice transplanter, and more particularly to a rice transplanter provided with a vertical feeding device at an intermediate portion of the seedling placing table in the seedling feeding direction.

[0002]

[Prior art]

 Conventionally, this seeder planting machine has a seedling table supported on the rear side of the machine body so that it can reciprocate in the machine width direction, and the seedlings set on the seedling table are extracted from the lower side and planted on the soil surface of the paddy field. The seedling mounting base is provided with a vertical feeding device at an intermediate portion in the seedling feeding direction. This vertical feeding device is provided with a driving and driven roller, and a conveyor belt which is wound between these rollers and has a large number of protrusions protruding outward from the seedling conveying surface of the seedling table. When the seedling table is moved to both end positions in the machine width direction by the reciprocating motion, the conveyor belt is rotated by a predetermined pitch, and the set seedlings on the seedling table are rotated by the protrusions provided on the conveyor belt. The seedlings are forcibly conveyed to the planting nail side, and the seedlings are reliably removed by the planting nails to be planted on the soil surface of the paddy field.

[0003]

[Problems to be solved by the device]

 However, in the above vertical feeding device, when the seedling mat is spliced on the seedling mounting table, the vertical feeding device is stopped, so that the leading end side of the seedling mat is not a protrusion of the feeding belt. There was a problem that it was caught and curled, and it was difficult to set an accurate and smooth seedling. Therefore, in order to solve the above problems, when the whole of the vertical feeding device is supported movably forward and backward with respect to the seedling mounting surface of the seedling mounting table, and when the seedling mat is spliced to the seedling mounting table, It has been proposed that the entire vertical feeding device is moved backward so that the projection of the conveyor belt retracts from the seedling placing surface of the seedling placing table. However, even with the above configuration, when the seedling is spliced to the seedling mounting table, the conveyor belt is retracted from the seedling mounting table surface, but since the conveyor belt is provided with a protrusion, it is still pulled to this protrusion. Moreover, since the whole of the vertical feeding device is retracted with respect to the seedling placing surface of the seedling placing table, a step is generated between the lower end side of the vertical feeding device and the seedling placing surface, The seedling mat to be spliced on the seedling mounting table may be caught on this step, and this could not be a sufficient solution. Moreover, the entire vertical feeding device was moved forward and backward. However, there is a problem in that the moving mechanism for making it complicated becomes complicated and the manufacturing cost becomes high.

An object of the present invention is to provide a rice transplanter which has a simple structure and can be manufactured at a low cost, and can be smoothly set even on a soft seedling mat without being caught on the seedling table. is there.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a rice transplanter in which a vertical feeding device 9 is provided at an intermediate portion of the seedling placing table 85 in the seedling feeding direction. The seedling guide body 10 extending from the front side to the rear end side is attached to the seedling mounting table 85 so as to be able to move in and out of a guide position where the vertical feeding device 9 advances and a non-guide position where it retracts. At the time of seedling splicing, the seedling guide body 10 is advanced to the guide position.

[0006]

[Action]

 At the time of transferring the seedlings to the seedling mounting table 85, the seedling guide body 10 is advanced to the guide position set on the outer side with respect to the outermost transfer surface of the vertical feeding device 9, and accordingly, the vertical transfer is performed. Even if there is a protrusion on the conveyor belt of the device, the seedling guide body 10 advances to a position beyond this protrusion, so even when a soft seedling mat is spliced, it is guided by the seedling guide body 10 and the protrusion Therefore, the seedling mat is accurately and smoothly set on the seedling placing table 85 without curling or curling. Further, after the seedlings are set on the seedling placing table 85, the seedling guide body 10 is retracted to the non-guide position set on the inner side with respect to the outermost conveyance surface of the vertical feeding device 9 so that The set seedlings are forcibly conveyed to the planting claw side on the conveying surface of the feeder 9. In addition, since the seedling guide body 10 is used and the seedling guide body 10 is structured to move in and out of the guide position and the non-guide position, as compared with the case where the entire vertical transfer device is moved backward. The overall structure is simple and the manufacturing cost can be low.

[0007]

【Example】

 FIG. 13 shows a riding-type multi-row planting type rice planting machine, in which an engine 2 is mounted on the upper front part of the machine body 1, the outer periphery of the engine 2 is covered with a hood 3, and the machine body is A driver's seat 4 including a steering seat 41 and a steering wheel 42 is provided on the upper rear part of the vehicle 1 while supporting a pair of left and right front wheels 5 on both sides of the front part of the machine body 1 and on both sides of the rear part of the machine body 1. The pair of left and right rear wheels 6 driven by the engine 2 are respectively supported by. Further, at the rear part of the machine body 1, a seedling planting device 8 is supported to freely move up and down through a parallel link mechanism 7 having a top link 71 and a pair of left and right lower links 72. The device 8 includes a planted case 81 to which rotational power is transmitted from the engine 2, a plurality of transmission cases 82 supported so as to be able to transmit power in the machine width direction of the planted case 81, and the transmission case 82. A plurality of planting claws 83 that are rotatably supported by a plurality of floats, a plurality of floats 84 that receive and support the entire load of the planting device 8, and a seedling mount 85 that reciprocates in the machine width direction. I have it.

More specifically, as shown in FIGS. 1 and 13, the seedling placing table 85 has a plurality of vertical ribs 85a and a seedling placing surface disposed on the bottom side between the vertical ribs 85a. Bottom plate 85b and an opening plate 85c provided at the lower end side of the bottom plate 85b, and upper and lower rail frames 85d and 85e extending in the machine width direction are provided at upper and lower portions on the back side of the bottom plate 85b. The rolling element 87 provided on the support rod 86 extending upward from the planting case 81 is inserted into the frame of the upper rail 85d, and the lower rail frame 85e is fixed to the bracket 88 extending from the transmission case 82. It is slidably supported by the guide rails 89, and the whole seedling mounting table 85 can reciprocate in the width direction with respect to the machine body 1 via the rail frames 85d and 85e. In addition, the guide rail 89 is provided with a seedling take-out plate 89a having a plurality of seedling take-out ports arranged on the lower side of the seedling take-up table 85, and the seedling take-up plate 85a is provided from the seedling take-out port of the seedling take-out plate 89a. The planting claw 83 is inserted into the inside, and the planting claw 83 takes out the seedling on the seedling mounting table 85 and plant it on the soil surface of the paddy field.

In addition, when the seedling placing table 85 is reciprocally moved to both end positions in the machine width direction, the set seedling on the bottom plate 85b is provided at the middle portion of the seedling placing table 85 in the vertical direction. 83. A vertical feeding device 9 for forcibly feeding a predetermined pitch is provided on the 3 side, and the vertical feeding device 9 forcibly conveys the seedlings on the bottom plate 85b to the planting claw 83 side. It is ensured that the seedlings can be taken out from the seedling mounting table 85 according to the above item 3.

A plurality of the vertical feed devices 9 are provided between the vertical ribs 85a in correspondence with the number of planting threads, and these vertical feed devices 9 are arranged as shown in FIGS. , A plurality of support frames 91 arranged vertically in the machine width direction on the rear surface side of the bottom plate 85b of the seedling mounting table 85, and a common driven and driven unit supported by the upper and lower portions of each support frame 91. Shafts 92 and 93, a plurality of driven and driving rollers 94 and 95 rotatably supported by the shafts 92 and 93, and a bottom plate of the seedling table 85 that is wound around the rollers 94 and 95. And a plurality of conveyor belts 96 having a large number of protrusions 96a protruding outward from 85b. Further, as is apparent from FIG. 3, the drive shaft 93 protruding from both sides of the conveyor belt 96 below the support frame 91 located at the middle portion in the longitudinal direction of the drive shaft 92 and in the central portion in the machine width direction. Is provided with a pair of left and right cylindrical rotating bodies 97, 97 in which at least one side is equipped with a one-way clutch 97a, and a swing arm 97b protruding from each rotating body 97 is provided with a cross section extending in the machine width direction. The cam body 98 is connected by a substantially inverted L-shaped connecting member 97c, and the cam body 98 is attached at the center position in the width direction of the conveyor belt 95 located in the center portion in the machine width direction at the intermediate portion of the connection member 97c. From the planting case 81, a rotary shaft 100 that constantly rotates during seedling planting work is projected to both sides by a power transmission mechanism inside the planting case 81, and the rotor 9 is brought into contact with the cam body 98 at both ends of the rotary shaft 100. Providing the operating arm 99, 99 with a a.

During the seedling planting operation, the seedling mounting table 85 is moved to one end position in the machine width direction, and the cam body 98 faces either one of the operating arms 99 and 99 which is constantly rotating. At this time, by pushing the cam body 98 by the rotor 99a of the actuating arm 99, the swinging arm 97b is swung through the connecting member 97c, and the drive is performed through the one-way clutch 97a. The shaft 93 is rotated by a predetermined angle, the conveyor belt 96 is rotated by a predetermined pitch in the seedling feeding direction, and the protrusions 96a provided on the conveyor belt 96 allow the seedling set on the seedling table 85 to be transferred. The seedlings are forcibly transported to the planting claw 83 side, and the seedlings are reliably removed by the planting claw 83 so that the seedlings are planted on the soil surface of the paddy field.

Therefore, in the above-mentioned configuration, the seedling guide body 10 extending from the front end of the vertical feeding device 9 in the transport direction to the rear end side of the vertical feeding device 85 of the seedling placing table 85 is provided in the vertical feeding device 9. Since it is attached to the guide position for advancing to the outermost surface of the conveyance and the non-guide position for retreating, the seedling guide body 10 is advanced to the guide position when the seedlings are spliced to the seedling placing table 85. is there.

Specifically, as shown in FIGS. 1 to 3, a plurality of brackets 11 are provided on the rear surface side of the bottom plate 85 b of the seedling mounting table 85 and above the driven rollers 94 of the vertical feeding device 9. The support rod 12 extending in the machine width direction is rotatably supported via the lever, and an operating plate 13 is provided at an intermediate portion in the longitudinal direction of the supporting rod 12, and the operating plate 13 is interlocked with a main shift lever described later. On the other hand, while connecting, the support plates 14 are attached to the support rods 12 at a plurality of positions in the lengthwise direction, and the tip ends of the support plates 14 extend from the upper position to the lower position of the conveyor belt 96 provided in the vertical feeding device 9. A plurality of extending seedling guide bodies 10 are supported. In addition, each seedling guide body 10 has an upper bent portion 10a formed at the upper end thereof inserted into and supported by each of the support plates 14, and from this support portion, outside the bottom plate 85b of the seedling mounting table 85. The lower bent portion 10b provided on the lower end side of each seedling guide body 10 is bent toward one side and protrudes near the lower side support rail 85e on the lower side of the bottom plate 85c to be supported. Although not shown, the springs of the seedling guide bodies 10 are interposed between the operating plate 13 and the bottom plate 85b of the seedling mounting table 8 around the support rod 12, By this ridge, each seedling guide body 10 is urged via the operating plate 13 to the guide position where the seedling guide body 10 is projected outward from the protrusion 96a of the conveyor belt 96.

Further, a connecting member 15 is attached to the distal end side of the operating plate 13, and the connecting member 15 is provided near an operating seat 41 of the driver's seat 4 via an operating cable 16 composed of an inner wire and an outer tube. As shown by the solid line in FIG. 1, the conveyor belts of the above-described vertical feed device 9 are linked to the main transmission lever 17 provided in an interlocking manner, and are interlocked with the operation of the main transmission lever 17. The guide position of the projection 96a provided on the 96 is projected outward, and as shown by the phantom line in the figure, the guide position is located inward of the tip of the projection 96a on the conveyor belt 96. It should be moved to the non-guide position where it is retracted.

More specifically, as shown in FIG. 4, the main shift lever 17 and a guide panel 18 for guiding the main shift lever 17 are provided near the control seat 41. A forked guide groove 19 having a road traveling position A, a two-speed shift position B, a planting work position C, a back position D and a seedling joint position E is formed in the guide groove 19. By moving the main shift lever 17 to the planting work position C, the drive wheels 6 of the machine body 1 and the whole planting device 8 are driven to perform seedling planting work. When the main shift lever 17 is moved to the seedling joint position E, the seedling joint work to the seedling mounting table 85 is performed while the traveling of the machine body 1 is stopped. Then, one end of the inner part of the operation cable 16 is connected to the main shift lever 17 as described above, and the middle of the operation cable 16 is stopped at a position above the vertical transfer device 9 on the seedling table 85, The other end side of the inner wire is interlockingly connected to the operating plate 13 via the operation cable 16, and when the main shift lever 17 is moved to the seedling joint position E, the operating plate 13 is operated. When each of the seedling guide bodies 10 is advanced to the guide position shown by the solid line in FIG. 1, and when the main speed change lever 17 is moved to the planting work position C, the operation plate 13 is used. The seedling guide bodies 10 are retracted to the non-guide positions shown by the phantom lines in the figure.

Therefore, at the time of seedling planting work by the planting device 8, by moving the main shift lever 17 to the planting work position C, the respective seedling guide bodies 10 are retracted to the non-guide positions. The seedlings set on the seedling mounting table 85 are forcibly transported to the planting claw 83 side by the projections 96a of the transport belt 96, and the seedlings from the seedling mounting table 85 by the planting claw 83 are transferred. It is possible to reliably take out and plant it on the soil surface of the paddy field with good accuracy. Further, when performing the seedling joining work to the seedling placing table 85, the main shift lever 17 is moved to the seedling joining position E. By advancing each of the seedling guide bodies 10 toward the guide position side in accordance with the operation, it is possible to prevent the seedling mat from coming into contact with the projection 96a of the transport belt 96 and curling at each seedling guide body 10. ,And , The seedling mat can be reliably and smoothly set on the seedling placing table 85 without forming a step or the like between the conveyor belt 96 and the bottom plate 85b of the seedling placing table 85. .

Further, when the seedling guide body 10 is moved between the guide position and the non-guide position, as shown in FIG. 5, an upper connecting portion of the seedling guide body 10 with respect to the support plate 14, that is, The straight line connecting the connecting portion O1 of the upper bent portion 10a of the seedling guide body 10 to the support plate 14 and the connecting portion O2 of the lower bent portion 10b of the seedling guide body 10 to the bottom plate 85b is the support. The one end 14 is formed so as to cross the fulcrum with respect to the center O3 of the support rod 12, and in this case, the seedling guide body 10 is moved to the guide position as shown by the solid line in the figure, and seedling splicing work is performed. In this case, even if a load is applied to the seedling guide body 10 by the seedling mat, the seedling guide body 10 is not retracted to the non-guide position, and By holding 10 at the guide position, it is possible to favorably perform the seedling joining operation of the seedling mat to the seedling mounting table 85 by the seedling guide body 10.

Further, in supporting the seedling guide body 10, as shown in FIG. 6, a vertical link mechanism 18 composed of a plurality of connecting rods is provided above and below the conveyor belt 96 in the vertical feeding device 9. The seedling guide body 10 is supported so as to be movable back and forth between a guide position shown by a solid line in the figure and a non-guide position shown by a virtual line, and an operation rod 19 connected to the parallel link mechanism 18 is connected to the main shift lever. The seedling guide body 10 may be moved back and forth between the guide position and the non-guide position by pushing and pulling with 17, or the like.

Further, as shown in FIG. 7, the seedling guide body 10 is swingably supported at its upper end portion by a mounting plate 20 projecting from the rear side of the bottom plate 85b of the seedling mounting table 85. Then, the lower end of the seedling guide body 10 may be moved up and down to move it back and forth between the guide position shown by the solid line and the non-guide position shown by the phantom line.

Further, as shown in FIG. 8, the seedling guide body 10 is formed by a piano wire or the like having a circular cross section, and at this time, a protrusion provided on the conveyor belt 96 of the vertical feeding device 9. When the height of 96a is sufficiently high and is larger than the diameter of the seedling guide body 10, the conveyor belt 96 is made flush, while when the height of the protrusion 96a is low. As shown in FIG. 9, a groove portion 96b capable of receiving the seedling guide body 10 is formed at a portion of the conveyor belt 96 facing the seedling guide body 10.

Further, as shown in FIG. 10, the seedling guide body 10 may be formed in a rectangular cross section, and at this time, the protrusion 96 a provided on the conveyor belt 96 of the vertical feeding device 9 is formed. When it is sufficiently higher than the seedling guide body 10, the conveyor belt 96 is formed to be flush, while when the height of the protrusion 96a is low, the conveyor belt 96 is conveyed as shown in FIG. A groove portion 96c capable of receiving the seedling guide body 10 is formed in a portion of the belt 96 facing the seedling guide body 10.

By the way, normally, a seedling stopper is arranged on the lower side of the seedling mounting table 85, and the seedling mat of a predetermined row set on the seedling mounting table 85 is moved downward by the stopper. The seedling stopper is conventionally attached to the lower position of the conveyor belt 96 in the vertical feeding device 9 and its stopper surface is Since the stopper is provided so as to advance onto the conveyor belt 96, when the stopper is advanced toward the conveyor belt 96 to temporarily prevent movement of the seedling mat on the seedling table 85, There is a problem that the mat is compressed by the movement prevention by the stopper and the driving of the conveyor belt 96, and the seedling stopper is formed in a long length so as to reach the position above the conveyor belt 96. With the stopper When the movement of the seedling mat is temporarily stopped, the stopper is positioned on the bottom plate 85b of the seedling mounting table 85 above the conveyor belt 96 to prevent the seedling mat from being compressed. However, in such a configuration, the seedling stopper becomes long, and the seedling stopper interferes with a fertilizer applicator or the like mounted near the seedling mounting table 85. There will be problems.

Therefore, as shown in FIG. 12, a link mechanism 22 for supporting the seedling stopper 21 in a stretchable manner is provided on the lower side of the conveyor belt 96 provided in the vertical feeding device 9, and the linking mechanism 22 is mounted on the seedling mounting table 85. When the downward movement of the seedling mat M set in the above is temporarily stopped, the seedling stopper 21 is advanced above the conveyor belt 96 onto the bottom plate 85b of the seedling placing table 85 via the link mechanism 22. By causing the seedling mat M to be compressed, the downward movement of the seedling mat M can be stopped by the stopper 21 to solve the above-mentioned problem.

More specifically, the link mechanism 22 includes a pair of non-parallel swing rods 23, 24 swingably supported at upper and lower portions on the left and right sides of the vertical frame 85a of the seedling table 85. The seedling stopper 21 is rotatably supported on the upper side of each of the swing rods 23 and 24, and the downward movement of the seedling mat M set on the seedling mounting table 85 is temporarily stopped. In this case, by rocking the rocking rods 23, 24 upward, the seedling stopper 21 is moved to the storage position shown by the solid line in the figure as the rocking rods 23, 24 rock. From above, as it is reversed as shown by a virtual line, it is advanced above the conveyor belt 96 onto the bottom plate 85b of the seedling mounting table 85, and the seedling stopper 21 stops the downward movement of the seedling mat M. The seed stopper 21 is not used. At the time of use, the rocking rods 23 and 24 are swung downward from the phantom line state in the figure to store the seedling stopper 21 in the solid line state.

Further, in supporting the seedling stopper 21, although not shown, it is also possible to use an extendable link mechanism 25 composed of a plurality of link rods assembled in a substantially parallelogram shape. .

[0026]

[Effect of device]

 As described above, according to the present invention, in the rice transplanter in which the vertical feeding device 9 is provided at the intermediate portion of the seedling placing table 85 in the seedling feeding direction, the front end portion in the carrying direction of the vertical feeding device 9 in the seedling placing table 85 is forward. The seedling guide body 10 extending from the rear end side to the rear end side is attached to the seedling mounting table 85 so as to be able to move in and out of a guide position that advances with respect to the outermost transporting surface of the vertical feeding device 9 and a non-guide position that retracts. Since the seedling guide body 10 is made to advance to the guide position at the time of seedling splicing, the seedling guide body 10 is made to advance to the guide position on the outer side with respect to the outermost conveyance surface of the vertical feeding device 9. As a result, even when a soft seedling mat is spliced, the seedling mat may curl on the protrusions or the like provided on the conveyor belt of the vertical conveyor 9 and the seedling mat may curl, or the seedlings on the seedling table 85 may be curled. Between the mounting surface and the vertical feed device 9 Since the seedling mat can be guided by the seedling guide body 10 without curling due to a slippage step, seedling splicing can be performed accurately and smoothly on the seedling mounting table 85. Moreover, after the seedlings are set on the seedling placing table 85, by retracting the seedling guide body 10 to the non-guide position set on the inner side with respect to the outermost conveyance surface of the vertical feeding device 9, The seedlings set on the seedling mounting table 85 are forcibly conveyed to the planting claw side on the carrying surface of the vertical feeding device 9, and the planting work can be performed more accurately on the planting claws. Further, since the seedling guide body 10 is used and the seedling guide body 10 is structured to move in and out of the guide position and the non-guide position, the whole structure can be simplified and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a main part of a rice transplanter according to the present invention.

FIG. 2 is a partially omitted plan view of the same main part.

FIG. 3 is a partially omitted bottom view of the same main part.

FIG. 4 is a plan view showing an operation panel of a main shift lever.

FIG. 5 is an explanatory view illustrating an operating state of a seedling guide body.

FIG. 6 is a side view showing another embodiment of the seedling guide body.

FIG. 7 is a side view showing another embodiment of the seedling guide body.

FIG. 8 is an explanatory diagram illustrating a relationship between a conveyor belt of a vertical feeding device and a seedling guide body.

FIG. 9 is an explanatory diagram illustrating a relationship between the conveyor belt and the seedling guide body.

FIG. 10 is an explanatory diagram illustrating a relationship between the conveyor belt and the seedling guide body.

FIG. 11 is an explanatory diagram illustrating a relationship between the conveyor belt and the seedling guide body.

FIG. 12 is a side view showing a seedling stopper.

FIG. 13 is a side view showing the entire structure of the rice transplanter.

[Explanation of symbols]

 85 Seedling stand 9 Vertical feed device 10 Seedling guide body

Claims (1)

[Scope of utility model registration request] 1. A rice transplanter in which a vertical feeding device 9 is provided at an intermediate portion of the seedling placing table 85 in the seedling feeding direction, and extends from a front end portion of the vertical feeding device 9 of the seedling placing table 85 in the conveying direction to a rear end side. The seedling guide body 10 is attached so as to be able to move in and out of a guide position that advances with respect to the outermost conveyance surface of the vertical feeding device 9 and a non-guide position that retracts, and when seedling is spliced to the seedling mounting table 85,
A rice transplanter characterized in that the seedling guide body 10 is advanced to a guide position.