JP2010207183A - Transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the interval between front wheels and rear wheels to be freely adjusted respectively, and to increase the rigidity of a rear part of a machine frame. <P>SOLUTION: The transplanter is obtained by installing the rear parts of a right and left pair of transmission cases extended in the front and rear direction in both outside end parts of right and left extending sections for link so as to be associated, and installing the rear part of each of the transmission cases in each outside end part of a right and left pair of transmission shaft cases. The rear part of each of the transmission cases is formed into a shape installed in the outside end part of the right or left extending section for the link and the outside end part of the transmission shaft case. Both of the outside parts of the right and left extending sections for the link, and each of the outside parts of the right and left pair of the transmission shaft cases are integrally formed so as to be freely extendable and retractable in the right and left width direction through the right and left pair of the transmission cases to connect the right and left pair of the rear wheels to the front part of each of the transmission cases so as to be associated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a riding-type transplanter that transplants seedlings such as vegetables into a basket in a field.

  Conventionally, as one form of the transplanter, there is one in which a self-propelled device capable of self-propelled in a state of straddling a heel is provided with a transplanter capable of transplanting seedlings. Such a self-propelled device for a transplanter has a vehicle frame horizontally mounted between a pair of left and right front wheels and a rear wheel arranged slightly wider than the heel width, and a seat, a transmission unit, and a motor unit on the frame. Are arranged. In addition, the transplanting device is disposed in front of the seat so as to be movable up and down via a lifting mechanism. (For example, refer to Patent Document 1).

JP 2006-67808

  However, in the above transplanter, the distance between the pair of left and right front wheels and the rear wheel in the lateral width direction (so-called tread) cannot be adjusted, so that the transplanter is loaded on a loading platform such as a light truck and transferred. I could not. In addition, the wheel spacing could not be adjusted appropriately according to the width of the heel. For this reason, there is a problem that the transplanting operation cannot be performed efficiently.

  Therefore, in the present invention, a self-propelled device capable of self-propelled in a state of straddling a heel is provided with a transplanting device that enables transplanting of seedlings, and the self-propelled device is provided between a pair of left and right front wheels and a rear wheel. The transplantation machine is a transplantation machine in which a seat frame, a transmission unit, and a prime mover unit are disposed horizontally on the aircraft frame, and the transplanting device is arranged to be movable up and down via a lifting mechanism in front of the seat. The pair of left and right front wheels and rear wheels can adjust the wheel spacing in the left-right width direction, and the rear part of the body frame extends in the front-rear direction to the connecting left-right extension piece extended in the left-right direction. A pair of left and right transmission shaft cases extended in the left-right direction from the left and right side portions of the transmission part via a pair of left and right connecting front and rear extension pieces to form a frame, and both outer ends of the connection left and right extension pieces Left and right pair extending in the front-rear direction The rear part of each transmission case is connected to the outer ends of the pair of left and right transmission shaft cases, and the rear part of each transmission case is located outside the connecting left and right extension pieces. The end part and the outer end part of the transmission shaft case are provided in a erected shape, and both outer parts of the connecting left and right extension pieces and the outer parts of the pair of left and right transmission shaft cases are connected to the left and right widths via the pair of left and right transmission cases. A transplanter is provided which is formed so as to be adjustable in an integral manner in the direction, and a pair of left and right rear wheels are interlocked and connected to the front portion of each transmission case.

  Further, the following configuration is also characterized.

  (1) The front end portion of the body frame is formed by laying a cylindrical support body extending in the left-right direction, and the inner side portion of the adjustment support body extending in the left-right direction at the left and right end portions of the cylindrical support body. Are slidably inserted in the left-right width direction which is the axial direction, and the upper end portion of the front wheel support piece extending in the vertical direction is connected to the outer end portion of each adjustment support body, and the lower end portion of each front wheel support piece The front wheels can be mounted to roll freely through the front axle.

  (2) The cylindrical support is installed between a pair of left and right installation supports, and the rotational position of the cylindrical support is adjustable around the axis of the cylindrical support so that the rotational position of the cylindrical support can be adjusted around the axis. The front wheel can be adjusted up and down.

  (1) In the present invention described in claim 1, a self-propelled device capable of self-propelled in a state of straddling a heel is provided with a transplanting device capable of transplanting seedlings, and the self-propelled device comprises a pair of left and right front wheels. The aircraft frame is horizontally mounted between the vehicle and the rear wheel, the seat, the transmission unit, and the prime mover unit are arranged on the aircraft frame, and the transplanting device is arranged to be movable up and down via a lifting mechanism in front of the seat. The pair of left and right front wheels and rear wheels can adjust the wheel spacing in the left and right width direction, and the rear part of the body frame is connected to the left and right extension pieces for connection extending in the left and right direction. A pair of left and right transmission shaft cases extended in the left-right direction from the left and right side portions of the transmission part via a pair of left and right connecting front and rear extension pieces extending in the front-rear direction to form a frame, Stretch in the front-rear direction on both outer ends of the distraction piece In addition, the rear portions of the transmission cases are connected to the outer end portions of the pair of left and right transmission shaft cases. The outer end of the extension piece and the outer end of the transmission shaft case are provided in a erected shape, and both the outer side portions of the connecting left and right extension pieces and the outer sides of the pair of left and right transmission shaft cases form a pair of left and right transmission cases. And a pair of left and right rear wheels are interlocked and connected to the front portion of each transmission case.

  Therefore, when transporting the transplanter on a load platform such as a light truck, the transplanter should be loaded on the load platform of a light truck, etc. by shortening the wheel spacing of the front and rear wheels of the transplanter. Can do. Moreover, at the time of transplantation work, the transplanter can be steadily self-propelled while straddling the heel by adjusting the wheel interval appropriately according to the heel width, and the transplantation work can be performed efficiently. .

  Here, the rear part of the fuselage frame is connected to the connecting left and right extension pieces extended in the left and right direction via the pair of left and right connecting front and rear extension pieces extending in the front and rear direction. Since the frame is formed by connecting the extended pair of left and right transmission shaft cases, the rigidity of the rear part of the fuselage frame can be increased and the support strength can be ensured well. By expanding and contracting the case, the rear wheel spacing can be easily and reliably adjusted. In addition, the rear part of the fuselage frame, which has improved rigidity and good support strength, can concentrate the transmission part and the prime mover part, which are relatively heavy objects, to increase the degree of freedom of seat placement. be able to.

  (2) In the present invention according to claim 2, the front end portion of the body frame is formed by laying a cylindrical support body extending in the left-right direction, and the left-right end portion of the cylindrical support body in the left-right direction. The inner part of the extending support body is slidably inserted in the left-right width direction, which is the axial direction, and the upper end part of the front wheel support piece extending vertically is connected to the outer end part of each adjustment support body. And the front wheel is attached to the lower end part of each front wheel support piece via a front axle so that rolling is possible.

  Therefore, when adjusting the front wheel interval, it can be easily adjusted by appropriately adjusting the support for adjustment. Moreover, the front end portion of the body frame can be formed with a simple structure.

  (3) In the present invention described in claim 3, the cylindrical support is installed between the pair of left and right installation supports, and the rotational position of the cylindrical support is adjustable around the axis of the cylindrical support. The front wheel can be adjusted up and down by adjusting the rotational position around the axis.

  Therefore, for example, by appropriately adjusting the vertical position of the front wheel according to the amount of settlement of the front wheel, the posture of the transplanter can be appropriately maintained, and the transplanter performance can be secured satisfactorily.

Side surface explanatory drawing of the transplanter which concerns on this invention. Plane explanatory drawing of the transplanter. Front explanatory drawing of the transplanter. The perspective view of a body frame. The side view of a body frame. The top view of a body frame. Exploded perspective view of the body frame. The perspective explanatory view showing the support structure of a seat. Side surface explanatory drawing which shows the support structure of a seat. Plane explanatory drawing which shows the support structure of a seat. Side surface explanatory drawing of a transplantation apparatus. The side view of a seedling supply part. The top view of a seedling supply part. The front view of a seedling supply part. Explanatory drawing of a seedling supply part. Plan sectional explanatory drawing of a seedling conveyance pot series. Side surface explanatory drawing of a seedling conveyance pot.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a side view of the transplanter A according to the present invention, FIG. 2 is a plan view of the transplanter A, and FIG. 3 is a front view of the transplanter A.

  As shown in FIGS. 1 to 3, the transplanter A according to the present invention is provided with a transplant device 2 capable of transplanting seedlings in the self-propelled device 1 that is capable of self-propelled in a state of straddling the heel U. ing. The self-propelled device 1 lays a body frame 5 between a pair of left and right front wheels 3, 3 and rear wheels 4, 4, and the left and right side seats 6, 6 and a transmission unit 7 are mounted on the body frame 5. The prime mover portion 8 is disposed so as to be concentrated between the rear wheels 4 and 4. In addition, the transplanting device 2 is disposed in front of the left and right side seats 6 and 6 so as to be movable up and down via a lifting mechanism 9. Below, the structure of the self-propelled apparatus 1 is demonstrated concretely first, and the structure of the transplanting apparatus 2 is demonstrated concretely next.

[Self-propelled device 1]
As shown in FIGS. 4 to 7, the body frame 5 of the self-propelled device 1 is mainly supported by the left and right front frame forming bodies 11 and 12 supported by the front wheels 3 and 3 and mainly by the rear wheels 4 and 4. The rear frame forming body 13 and the three-part frame forming body are connected to each other. The left and right front frame forming bodies 11 and 12 are replacement frame forming bodies that are replaced according to the type of seedling to be transplanted, while the rear frame forming body 13 is common regardless of the type of seedling to be transplanted. The common frame forming body to be used is used. It should be noted that a plurality of left and right front frame forming bodies 11 and 12 as replacement frame forming bodies are prepared in advance so that they can be selectively replaced according to the type of seedling to be transplanted (a different number of transplanting lines, etc.). I can leave.

[Rear frame forming body 13]
First, for convenience of explanation, the rear frame forming body 13 will be described. That is, as shown in FIGS. 4 to 7, the rear frame forming body 13 connects the wheel support forming body 15 to the rear end portion of the forming body main body 14 formed in a quadrangular three-dimensional frame shape. A handle forming body 16 extending rearward and upward is connected to the rear end portion of the rear end portion.

(Forming body 14)
The formed body 14 includes a pair of front and rear column forming pieces 18 formed in a front portal structure between a front part and a rear part of a pair of left and right front and rear extension pieces 17 and 17 formed in a rectangular cylinder shape by extending in the front and rear direction. , 18 are erected in a straddling shape, and a pair of left and right connecting pieces 19, 19 extending in the front-rear direction are laid between the upper portions of both strut-forming pieces 18, 18 to form a rectangular solid frame shape. . Here, the upper ends of the pair of front and rear column forming pieces 18, 18 formed in a frontal portal type function as a handle for an operator seated on the seat 6. Reference numeral 20 denotes a base end support piece that extends in the vertical direction and supports the base end of the elevating mechanism 9, and the base end support piece 20 is installed between the front portions of the front and rear extension pieces 17 and 17. The standing piece 20b is erected and formed in the middle part of the frame piece 20a. Reference numeral 21 denotes a transmission mechanism relay support piece extending in the vertical direction. The transmission mechanism relay support piece 21 is erected with a lower end portion continuously provided in the middle of the left front and rear extension piece 17. Reference numeral 22 denotes a lever support frame piece that supports an operation lever or the like, which will be described later, and the lever support frame piece 22 is installed between the middle portions of the connecting pieces 19 and 19.

(Wheel support forming body 15)
The wheel support forming body 15 extends horizontally between the rear ends of the front and rear extension pieces 17 and 17 and extends horizontally in the left-right direction so as to form a cylindrical shape. A pair of left and right transmission shaft case pieces 25a formed in a cylindrical shape by extending in the left-right direction via a pair of left and right connecting front and rear extension pieces 24, 24 extending in the front-rear direction at the rear upper left and right side positions of 23a. 25a are connected to form a framework. Here, the pair of left and right transmission shaft case main pieces 25a, 25a are coaxially arranged with a predetermined interval for the transmission portion 7 interposed therebetween. Moreover, the pair of left and right transmission shaft case pieces 25a, 25a are arranged in parallel with the connecting left and right extension book pieces 23a. Further, the support frame support columns 26 and 26 are erected upright from the left and right side portions of the connecting left and right extension pieces 23a, and the seats 6 and 6 are respectively mounted by the support frame support columns 26 and 26. The rear portion of the support frame 60 to be supported is supported. As shown in FIG. 6, the front end of a handle support piece 27 having a U-shape in a plan view is connected to the central portion of the connecting left and right extension book pieces 23a, and the handle support piece 27 extends rearward substantially horizontally. ing.

  As shown in FIG. 1 and FIG. 2, sliding pieces 23 b and 23 b are slidably inserted into the left and right ends of the connecting left and right extension pieces 23 a after being formed in a cylindrical shape by extending in the left and right directions, respectively. Thus, the connecting left and right extending pieces 23 are formed. 23c is a sliding fixing / releasing operation piece provided at the lower part of the connecting left and right extension book piece 23a. By rotating the sliding fixing / releasing operation piece 23c, the rear sliding piece 23b is connected to the connecting left and right extension pieces 23c. Fixing to the extension piece 23a is also possible to release the fixation to the connecting left and right extension book pieces 23a so as to be slidable in the left and right directions, and to adjust the extension of the connecting left and right extension pieces 23 in the left and right width directions. Is formed. In addition, sliding pieces 25b and 25b, which are formed in a cylindrical shape by extending in the left-right direction, are slidably fitted into the outer ends of the pair of left and right transmission shaft case main pieces 25a and 25a for transmission. The shaft cases 25, 25 are formed to be extendable in the left-right width direction.

  The transmission shaft cases 25, 25 are extended outward from the left and right side portions of the transmission portion 7 to form rear sliding pieces 25 b, which form part of each transmission shaft case 25, 25. The rear end portions of a pair of left and right transmission cases 28, 28 extending in the front-rear direction are interlocked and connected to the outer end portion of 25 b, and a part of the connecting left and right extension pieces 23 is formed in the middle portion of both transmission cases 28, 28. The outer end portions of the rear sliding pieces 23b, 23b are connected so that the rear sliding pieces 25b, 25b of the pair of left and right transmission shaft cases 25, 25 are substantially parallel to the transmission shaft cases 25, 25. The rear sliding pieces 23b, 23b of the connecting left and right extending pieces 23 are integrally stretchable in the left-right width direction that is the axial direction. The rear wheels 4 and 4 are interlocked and connected to the lower end portions of the two transmission cases 28 and 28 via the rear axles 29 and 29.

  In this way, the transmission shafts 76 and 76 (see FIG. 1) built in the transmission shaft cases 25 and 25 from the transmission unit 7 linked to the prime mover unit 8 → the chain mechanism built in the transmission cases 28 and 28 (see FIG. (Not shown) → rear axles 29, 29 → rear wheels 4, 4 can transmit power. In addition, the distance (tread) between the left and right rear wheels 4 and 4 can be appropriately changed by adjusting the expansion and contraction of the transmission shaft cases 25 and 25 in the lateral width direction that is the axial direction.

(Handle forming body 16)
The handle forming body 16 is constructed between a pair of left and right forming pieces 30 and 30 formed by extending from the rear part of the handle support piece 27 to the rear upper and outer sides in a curved shape, and between the rear ends of both the forming pieces 30 and 30. The handle 31 is formed in a substantially U shape in plan view. And while grasping | ascertaining the handle | steering-wheel 31, he can operate the aircraft while walking. Reference numeral 32 denotes a left lever guide body, 33 denotes a right lever guide body, and 34 denotes a support and reinforcement body such as a lever.

  A support base 71 extending in the front-rear direction is installed between the support bracket 70 provided on the upper portion of the above-described rear column forming piece 18 and the middle portion of the support and reinforcement body 34 such as the lever. Yes. An engine 72 that mainly constitutes the prime mover unit 8 is mounted on the support base 71, and a hydraulic pump 73 is mounted behind the engine 72. A transmission unit 7 is provided below the support base 71. The output shaft of the engine 72 is linked to the input shaft of the transmission unit 7 via the first transmission belt mechanism 74 and is linked to the input shaft of the hydraulic pump 73 via the second transmission belt mechanism 75. . The output shaft of the transmission unit 7 is interlocked with the inner ends of the transmission shafts 76 and 76 built in the transmission shaft cases 25 and 25.

  In this way, the engine 72 and the transmission unit 7 which are relatively heavy objects are intensively arranged directly above the wheel support forming body 15 via the support base 71, and the rear wheels 4, By projecting backward from 4 and securing a large seat arrangement space (arrangement degree of freedom) immediately above the rear wheels 4 and 4, the seat 6 can be placed at a desired location in the seat arrangement space. , 6 are arranged.

[Left and right front frame forming bodies 11, 12]
The left and right front frame forming bodies 11 and 12 are formed in the same shape that is symmetrical with respect to the left and right lines as a replacement frame forming body that is replaced according to the type of seedling such as vegetables to be transplanted (eg, onion, lettuce or cabbage). The rear frame forming body 13 is connected to the front end of the forming body 14.

  That is, the left and right front frame forming bodies 11, 12 extend from the front-rear direction and have a U-shaped base forming piece 35, 36 that opens inside, and from the front end of the base forming piece 35, 36. L-shaped upper front forming pieces 37, 38 formed extending substantially horizontally outward and substantially horizontally extending forward from the midway portion, and standing at the front end portions of the front forming pieces 37, 38 Plate-like mounting pieces 39, 40 as erection supports, and lower front-forming pieces formed by connecting the front end portions to the mounting pieces 39, 40 and extending rearwardly downward. 41, 42, rising formation pieces 43, 44 formed by raising upward from the rear ends of the lower front formation pieces 41, 42, and outer end portions at the upper ends of the rising formation pieces 43, 44. Rear-side forming pieces 45 and 46 formed by being continuously provided and extending substantially horizontally inward, and the rear of the base-forming pieces 35 and 36 L-shaped connecting pieces 47, 48 which are raised from the upper surface of the part and have inner end portions of the rear side forming pieces 45, 46 connected to the outer side surfaces thereof, the front surfaces of the connecting pieces 47, 48 and the above-mentioned Triangular ring-shaped reinforcing pieces 49 and 50 having rear end edges and lower edge parts connected to the inner end faces of the front half portions of the base forming pieces 35 and 36 and the mounting pieces 39 and 40 in the left-right direction. It is formed from a front-side formed book piece 51a as a cylindrical support body that is elongated and formed into a hexagonal cylindrical shape.

  In this way, as shown in FIG. 7, the base forming piece 35 having a U-shaped cross section from the front end openings 17a, 17a of the rectangular tubular front and rear extending pieces 17, 17 forming a part of the formed body 14 is formed. , 36 is inserted, and the connecting pieces 47, 48 are engaged with the front column forming piece 18 forming a part of the formed body 14 from the front, and thereafter the connecting pieces 47, 53 are attached and detached. Connected freely.

  Further, as shown in FIG. 7, recesses 39 a and 40 a that open forward are formed in the front middle portions of the attachment pieces 39 and 40, and the left and right end portions of the front side formation piece 51 a are fitted. It is horizontal. A pair of upper and lower arc-shaped adjustment elongated holes 54 and 54 are formed in the upper and lower portions of the attachment pieces 39 and 40 with the axis of the front side formation piece 51a as the center. Also, hook-shaped surface contact pieces 55, 55 are provided at the left and right ends of the front side formation piece 51a, and bolt insertion holes 56, 56 are formed in the surface contact pieces 55, 55, respectively. The connecting bolts 57 and 57 are screwed into the adjustment long holes 54 and 54 facing each other, so that the surface contact pieces 55 and 55 are brought into surface contact with the mounting pieces 39 and 40. θ is an adjustment angle.

  The inner portions of the front sliding pieces 51b and 51b as the support for adjustment formed in a similar hexagonal cylindrical shape are slidably fitted to the left and right end portions of the front side forming book piece 51a. The front sliding pieces 51b and 51b can be fixed to the front forming main piece 51a by rotating the pair of left and right sliding fixing / releasing operation pieces 58 and 58 provided on the upper part of 51a. The fixing to the main piece 51a is released so as to be slidable in the left-right direction, and the front-side forming piece 51 is formed to be extendable in the left-right width direction.

  As shown in FIG. 2, the upper ends of the front wheel support pieces 59, 59 are connected to the outer end portions of the front sliding pieces 51b, 51b, and the front wheel support pieces 59, 59 are extended downward and downward. The front wheels 3, 3 are attached to the lower end portions of the front wheel support pieces 59, 59 via the front axles 10, 10 so as to roll freely.

  In this way, by loosening the connecting bolts 57, 57 and rotating the front forming piece 51 around its axis, it is within the range of the arc length of the adjusting long holes 54, 54 (within the adjusting angle θ). The front formation piece 51 is rotated and adjusted, and then the connecting bolts 57 and 57 are tightened, so that the front wheels 3 and 3 attached to the front formation piece 51 via the front wheel support pieces 59 and 59 are adjusted in the vertical direction as appropriate. To be able to. Moreover, the distance (tread) between the left and right front wheels 3, 3 can be appropriately changed by adjusting the front-side forming pieces 51 in the left-right width direction that is the axial direction.

  Therefore, when the front wheel interval is adjusted, the front forming piece 51 can be easily adjusted by appropriately adjusting the slide. Moreover, the front end portion of the body frame 5 can be formed with a simple structure.

  And, for example, the posture of the transplanter A can be properly maintained by appropriately adjusting the vertical position of the front wheels 3 and 3 according to the amount of settlement of the front wheels 3 and 3, and the transplanter performance is ensured well. can do.

  As described above, the fuselage frame 5 is connected to the rear frame forming body 13 as the common frame forming body and the left and right front frame forming bodies 11 and 12 as the replacement frame forming bodies. Therefore, when the number of planting strips of the transplanting device 2 differs depending on the type of seedling to be transplanted, left and right front frame forming bodies for attaching the transplanting device 2 according to the type of seedling 11 and 12, and the wheel widths of the front wheels 3 and 3 can be appropriately matched to the heel width. As a result, the transplanter can be moved efficiently, and the transplanting work efficiency can be improved.

  The rear frame forming body 13 includes a pair of left and right transmission shaft cases 25, 25 that are extended outward from the left and right side portions of the transmission portion 7, and outer end portions of the transmission shaft cases 25, 25. And a pair of left and right transmission cases 28, 28 extended in the front-rear direction by interlocking the rear ends thereof, and the transmission shaft cases 25, 25 being interposed between the transmission cases 28, 28 substantially in parallel. Since the left and right extension pieces for connection 23 and 23 and the pair of left and right extension pieces for connection 24 and 24 extended forward from the connection left and right extension pieces 23 and 23 are formed as a frame, High rigidity can be ensured.

  In addition, the rear wheels 4, 4 are interlocked and connected to the front ends of the transmission cases 28, 28 that form a part of the rear frame forming body 13, so that the rear frame forming body 13 is mainly supported by the rear wheels 4, 4. be able to.

  Here, the wheel support forming body 15 forming the rear part of the rear frame forming body 13 is connected to the connecting left and right extending pieces 23 and 23 extended in the left and right direction, and a pair of left and right connecting front and rear extending pieces 24 extending in the front and rear direction. 24, a pair of left and right transmission shaft cases 25, 25 extending in the left-right direction from the left and right side portions of the transmission portion 7 are connected to form a frame, so that the rigidity of the wheel support forming body 15 is increased. In addition to being able to secure a good support strength, the rear wheel spacing can be easily and reliably adjusted by expanding and contracting the transmission shaft cases 25 and 25. In addition, the wheel support forming body 15 with high rigidity and good support strength can be arranged with the transmission portion 7 and the prime mover portion 8 which are relatively heavy objects in a concentrated manner. The degree of freedom in arrangement can be increased.

  At this time, on the rear frame forming body 13 and above the rear wheels 4 and 4, seats 6 and 6 (a state in which an operator is seated), a transmission portion 7, and a prime mover portion 8 are relatively heavy. Although arranged in a concentrated manner, the rear frame forming body 13 has a strong rigidity, so that these heavy objects can be firmly supported.

  When the transplanter A is loaded on a carrier such as a light truck and transferred, the distance between the front and rear wheels 3 and 4 of the transplanter A is adjusted to be shortened so that the transplanter A can be placed on the carrier such as a light truck. Can be loaded. Further, at the time of transplanting work, the transplanter A can be steadily self-propelled in a state of straddling the kite U by adjusting the wheel interval appropriately according to the width of the kite U, and the transplanting work can be performed efficiently. be able to.

  Also, as shown in FIGS. 1, 2 and 4 to 7, the rear forming pieces 45 and 46 which are the rear portions of the left and right front frame forming bodies 11 and 12, and the connecting left and right extension book pieces 23a Between the left and right side portions, support frame bodies 60 and 60 that respectively support the left and right seats 6 and 6 are detachably installed so as to be positioned inward of the transmission cases 28 and 28.

(Support frame 60)
As shown in FIGS. 8 to 10, the support frame 60 has a three-dimensional structure so that the water tank housing space S <b> 1 is retained from the front forming piece 61, the lower part, the rear forming piece 62, and the upper forming piece 63. A frame is formed, and a seat mounting portion 64 for mounting the seat 6 is formed on the upper surface portion of the upper forming piece 63, and a foot that supports the footrest body 65 in a protruding shape forwardly on the lower portion of the front forming piece 61 is formed. The mounting body support part 62c is formed.

  The front portion forming piece 61 is a plan view from a rectangular plate-like main piece 61a extending in the vertical direction and left and right side pieces 61b and 61b formed by extending the left and right side edge portions of the main piece 61a forward. It is formed in a U shape. Reference numeral 61c denotes attachment position adjusting holes formed in the left and right side pieces 61b and 61b with a predetermined interval in the vertical direction.

  The lower and rear forming pieces 62 are provided with a front end portion of a pair of left and right rod-like pieces 62a and 62a extending in the front-rear direction on the left and right sides of the lower end of the book piece 61a, and a middle portion of the rod-like pieces 62a and 62a upward. The receiving piece 62b, which is substantially U-shaped when viewed from the side, is erected between the upper ends of the rod-like pieces 62a and 62a. Here, the receiving piece 62 b is disposed above the upper end portion of the front portion forming piece 61.

  The upper forming piece 63 horizontally spans a pivot 63a between the upper portions of the left and right side pieces 61b and 61b of the front forming piece 61, and connects the front end portions of the pair of left and right upper bar pieces 63b and 63b to the pivot shaft 63a. Both upper bar-like pieces 63b, 63b rise to substantially the same height as the receiving piece 62b and extend rearward substantially horizontally to the position of the receiving piece 62b, and between the rear end portions of the upper bar-like pieces 63b, 63b. And an engaging piece 63c that engages and disengages from above is integrally formed.

  A portion extending substantially horizontally to the rear of the upper bar-like pieces 63b, 63b serves as a seat mounting portion 64, and the seat 6 is mounted on the seat mounting portion 64 so that the front and rear positions can be adjusted.

  In addition, the upper forming piece 63 can be turned up and down around the pivot 63a so that the seat 6 mounted on the seat mounting portion 64 is in a standing position by being tilted forward and the use position (a) where the seat 6 is substantially horizontal. The position can be freely changed to the non-use position (b). At this time, the engagement piece 63c is engaged with the receiving piece 62b at the use position (a). Further, the engagement piece 63c is detached from the receiving piece 62b at the non-use position (b).

  Furthermore, since the upper forming piece 63 is formed by raising the front part of the upper bar-like pieces 63b, 63b from the pivot 63a to substantially the same height as the receiving piece 62b, the seat 6 is disposed at the non-use position (b). In this case, the seat 6 is offset forward from the pivot 63a. For this reason, the upper surface of the water tank housing space S1 retained in the support frame 60 is largely opened, and the water tank T can be inserted from above the upper surface. Alternatively, the water tank T can be lifted upward through the upper surface. It can be done easily. In the present embodiment, the two water tanks T can be accommodated adjacent to each other in the water tank accommodating space S1. The water in the water tank T is supplied for irrigation and washing into the transplant body of the transplant device 2 described later via a water supply means (not shown).

  Further, the rod-like pieces 62a and 62a of the lower and rear forming pieces 62 are formed as footrest support parts 62c by extending the front ends forward. Then, a flat plate-like footrest body 65 having a large number of mud dropping holes 65 a is placed on the footrest support section 62 c, and the footrest body 65 is placed at a lower position of the front formation piece 61. It protrudes forward.

  A locking piece 66 is provided on the rear upper part of the lower part and the rear part forming piece 62. That is, the locking piece 66 has a horizontally long plate-like attachment piece 66a attached between the rear upper portions of the pair of left and right rod-like pieces 62a, 62a, and three protrusion pieces 66b from the left and right side portions and the central portion of the attachment piece 66a. 66b, 66b protrudes rearward, and locking pins 66c, 66c are formed horizontally across these protruding pieces 66b, 66b, 66b.

  In addition, 67 is a water tank arrangement | positioning position control body attached detachably between the upper part of the left side or the right side of the front part formation piece 61 and the lower part and the rear part formation piece 62. FIG. Here, the water tank arrangement position restricting body 67 is attached to the upper left side of the support frame body 60 arranged on the left side, while being attached to the upper right side of the support frame body 60 arranged on the right side. It can be shared with both the left and right sides.

  The pair of left and right support frames 60, 60 configured as described above can be attached detachably with a certain distance between the left side and the right side of the machine body frame 5, and the mounting position in the vertical direction can also be set. It can also be adjusted.

  That is, the support frame bodies 60, 60 are arranged between the rear formation pieces 45, 46 of the left and right front frame formation bodies 11, 12, and the left and right side portions of the connecting left and right extension book pieces 23a. I have to. As shown in FIGS. 5 and 6, a connecting bracket 68 is provided on the rear side forming pieces 45 and 46. The connection bracket 68 is formed in a plan view gate shape from an attachment piece 68a attached to the rear formation pieces 45, 46 and connection protrusions 68b, 68b protruding rearward from the left and right sides of the attachment piece 68a. Yes. And the connection protrusions 68b and 68b are formed with connection holes 68c and 68c that coincide in the left-right direction.

  In this way, by fitting the front forming piece 61 to the connecting bracket 68, the left and right side pieces 61b, 61b of the front forming piece 61 are overlapped on the outside of the connecting protrusions 68b, 68b of the connecting bracket 68. The desired mounting position adjusting holes 61c, 61c are aligned with the connecting holes 68c, 68c in the left-right direction, and the connecting pins 69 are inserted through the holes 61c, 61c, 68c, 68c so as to be freely inserted and removed. By doing so, the front forming piece 61 can be connected to the connecting bracket 68.

  Further, as shown in FIGS. 5 and 6, the support frame columns 26, 26 erected on the left and right sides of the connecting left and right extension pieces 23a are connected to the front pieces 26a, 26a extending in the vertical direction. The left and right side pieces 26b, 26b, 26b, and 26b formed so as to protrude rearward from the left and right side edge portions of the pieces 26a and 26a are formed in a planar view gate shape. The left and right side pieces 26b, 26b, 26b, and 26b are provided with a number of locking grooves 26c, 26c, 26c, and 26c that are inclined to the front and rear and are opened at the rear end at regular intervals in the vertical direction. Forming.

  In this way, the locking pins 66c and 66c of the locking piece 66 can be locked in the desired locking grooves 26c and 26c of the support frame column 26 so as to be locked and detachable. Here, of the two locking pins 66c and 66c provided on the inner and outer sides in order to share the left and right support frame 60, the inner locking pin 66c is locked in the locking grooves 26c and 26c.

  Therefore, when the support frame 60 is attached to the machine body frame 5, first, the locking piece 66 is locked to the support frame column 26, and then the front forming piece 61 is connected to the connection bracket 68. The support frame 60 can be attached to the body frame 5. Further, the support frame body 60 can be removed from the machine body frame 5 by following the reverse procedure. And the support frame 60 can be adjusted to desired height by selecting the locking groove 26c and the attachment position adjustment hole 61c.

  At this time, as shown in FIGS. 1 and 2, the footrests 65, 65 provided integrally with the support frames 60, 60 are formed as lower front portions of the left and right front frame forming bodies 11, 12. Arranged inside the pieces 41, 42. Even when the vertical position of the support frame 60 is adjusted, the vertical position of the footrest body 65 is adjusted integrally with the support frame 60.

  As described above, the water tank T is housed in the water tank housing space S <b> 1 that is retained inside the support frame 60, so that the water tank is added to the seats 6, 6, the transmission unit 7, and the motor unit 8. T can be concentrated and arranged above the left and right rear wheels 4, 4. In this way, by placing heavy objects concentrated above the left and right rear wheels 4, 4, the front and rear center of gravity can be brought close to the left and right rear wheels 4, 4 to stabilize the aircraft. It can be run to ensure a solid transplant function. Moreover, since the water tank T is disposed above the rear wheels 4 and 4 serving as fulcrums, the airframe that raises the front of the aircraft by lowering the rear of the aircraft with the rear wheels 4 and 4 as fulcrums. Can be easily performed regardless of the weight change of the water tank T.

  In addition, since the seat mounting portion 64 and the footrest support portion 62c are formed on the support frame 60, the seat 6 is placed on the seatrest portion 64, while the footrest support portion 62c is provided with the foot. By supporting the mounting body 65, the seat 6 and the foot mounting body 65 can be easily arranged. At this time, the relative positional relationship between the seat 6 and the footrest body 65 can be ensured satisfactorily through the support frame body 60.

  Since the mounting position of the support frame 60 in the vertical direction is adjustable, the body shape and working posture of the operator who sits on the seat 6 with the seat 6 and the footrest body 65 supported by the support frame 60. Depending on the transplanting work height of the transplanting device 2 to be set, etc., it can be appropriately changed integrally. Therefore, the worker can set the height of the seat 6 according to his / her preference and can take an easy work posture. As a result, operator fatigue can be reduced and work efficiency can be improved.

  Moreover, since the water tank T can be taken in and out of the support frame 60 at a relatively low position below the seat 6, the heavy labor of the water replenishment work for raising and lowering the heavy water tank T and taking it in and out is reduced. Can do.

  Furthermore, the support frame 60 can be attached to the support frame 60 simply by detachably installing the support frame 60 between the rear portions of the left and right front frame forming bodies 11 and 12 and the left and right side portions of the connecting left and right extension pieces 23. The seat 6 can be supported easily and reliably. And by removing the support frame body 60, the width | variety of the wheel of the rear-wheels 4 and 4 via the transmission cases 28 and 28 can be width-adjusted suitably. In addition, in the support frame 60, a water tank storage space S1 that can store the water tank T and the like can be secured, and the storage space S1 is formed at a relatively low ground level. The work of taking in and out the water tank T and the like stored in the storage space S1 can be facilitated.

  In addition, a reserve seedling stand (not shown) for accommodating a seedling to be transplanted is detachably attached to the upper forming piece 63 of the support frame 60, and the relative position between the spare seedling stand and the seat 6 is fixed. The relationship can be made substantially constant. For this reason, even when the height of the seat 6 is changed via the support frame 60, the operation posture in which the operator sitting on the seat 6 takes out the seedling from the spare seedling table and supplies it to the transplanting device 2 is made substantially constant. Can be maintained, and the fatigue of the operator can be reduced. Moreover, since both the preliminary seedling table and the seat 6 are attached to the support frame 60, they can be arranged close to each other. Therefore, the operator's fatigue can be reduced also from this point.

  As described above, the left and right seats 6, 6 are arranged on the body frame 5 via the support frame bodies 60, 60 behind the transplantation device 2 as shown in FIGS. 2 and 11. Between the left and right seats 6, 6, an arrangement space S 2 is provided for arranging a base portion of the elevating mechanism 9 and a middle portion of the transmission mechanism 77 that transmits power from the prime mover portion 8 to the transplanting device 2. In addition, various operation means are arranged in the arrangement space S2, and the various operation means are arranged at a position where the operation means can be operated from the posture seated on any of the left and right seats 6 and 6.

(Installation space S2)
The forming body main body 14 is disposed in the disposing space S2. The forming body main body 14 is formed in a rectangular solid frame shape as described above, and the disposing space S2 is formed inside the forming body main body 14. The most of it is compactly formed.

  As shown in FIGS. 4 to 7, the base end support piece 20 and the transmission mechanism relay support piece 21 are arranged in the arrangement space S <b> 2 formed in the formation body 14. And as shown in FIG. 11, while connecting the base end part of the raising / lowering mechanism 9 to the base end part support piece 20 pivotally, the connection part provided in the rear part of the transplant apparatus 2 at the front-end | tip part of the same raising / lowering mechanism 9 78 is pivotally connected. Further, a lifting cylinder 80 communicated and connected to a hydraulic pump 73 between a middle part of the proximal end of the lifting mechanism 9 and a pair of left and right projecting pieces 79, 79 projecting forward from the central part of the connecting left and right extending pieces 23. Is installed. In this manner, the transplantation device 2 can be moved up and down via the lifting mechanism 9 by causing the hydraulic pump 73 to extend and retract the lifting cylinder 80.

  A support shaft piece 81 that forms a middle portion of the transmission mechanism 77 is attached to the upper part of the transmission mechanism relay support piece 21. The transmission mechanism 77 has a rear transmission shaft 84 interposed between the power take-out portion 82 interlocked with the transmission portion 7 and the rear end portion of the relay shaft 83 supported by the support shaft piece 81, and relay. A front transmission shaft 86 is interposed between the front end portion of the shaft 83 and an input shaft 85 provided at the rear portion of the transplanting device 2. In this way, the transmission unit 7 and the transplant device 2 are interlocked and connected via the transmission mechanism 77.

  In addition, a rectangular plate-like upper closing body 87 is stretched on the upper surface of the forming body main body 14 to close just above the arrangement space S2. The upper closing body 87 is stretched substantially horizontally at substantially the same ground height as the seat portions 6a, 6a of the left and right side seats 6, 6 to form a seat side operation table. The various operation means are arranged in the vicinity. Reference numeral 105 denotes left and right side closing bodies that respectively close the left and right side surfaces of the formed body 14.

  On the seat side operation console 87, as various operation means, an engine stop button 88 as an engine stop means for stopping the engine 72, and a left / right intermittent connection for connecting / disconnecting power transmission to the left / right rear wheels, respectively. Left and right side clutch levers 89 and 90 as operating means and a main clutch lever 91 as main interrupting operating means for connecting / disconnecting power transmission from the engine 72 to the transmission unit 7 are provided.

  Then, as various operation means arranged in the vicinity of the seat side operation table 87, planting as a planting depth adjusting means for adjusting the planting depth of the transplanting apparatus 2 is provided at the center lower part on the rear surface side of the transplanting apparatus 2. The attachment depth adjusting lever 92 is provided so as to protrude rearward, so that the planting depth adjustment lever 92 can be adjusted by raising and lowering it in the sitting posture. In addition, an inter-stock adjustment handle 93 as an inter-stock adjustment means is provided above the rear portion of the seat-side operation console 87, and the inter-strain adjustment handle 93 is rotated forward and backward in a sitting posture to perform an adjustment operation. To be able to. Further, an accelerator lever 104 as an acceleration / deceleration means for increasing / decreasing the self-propelled device 1 is provided on the upper right side of the rear column forming piece 18, and the accelerator lever 104 is swung back and forth in a sitting posture. The speed can be increased or decreased. Here, in the handle operating posture, the planting depth adjusting lever 92 and the inter-strain adjusting handle 93 cannot be operated.

  The handle 31 is provided with a handle side operation table, and various operation means are arranged on the handle side operation table. That is, as a handle-side operation table, a left lever guide body 32 is provided at the rear portion of the left forming piece 30, a right lever guide body 33 is provided at the rear portion of the right forming piece 30, and the left side of the support / reinforcing body 34 such as a lever is provided. An intermediate lever guide body 94 is provided at the portion. As the various operation means, a main clutch lever 95 is provided on the left lever guide body 32, and a planting clutch lever 96 as an intermittent operation means for connecting / disconnecting power transmission to the transplanting device 2 to the right lever guide body 33 is provided. And a planting elevating lever 97 as a planting elevating means for elevating and lowering the transplanting device 2, and a speed change lever 98 as a speed change operating means for shifting the self-propelled device 1 is provided on the intermediate lever guide body 94. A support plate 99 is extended inwardly on the inner side of the right lever guide body 33, and an engine stop button 100 is provided on the support plate 99. Left and right side clutch levers 101 and 102 are provided at the rear of the left and right forming pieces 30 and 30. An accelerator lever 103 is provided at the rear of the right forming piece 30. Here, in the posture seated on the seat 6, these operation means cannot be operated.

  As described above, the engine stop buttons 88, 100, the left and right side clutch levers 89, 90, 101, 102, and the main clutch lever 91 are used as common operation means for the handle side operation table and the seat side operation table, respectively. 95 and accelerator levers 103 and 104 are arranged.

  As described above, since the various operation means are arranged at a position where they can be operated from the posture seated on any of the left and right seats 6, 6, the worker seated on the seats 6, 6 gets down from the self-propelled device one by one. There is no need to move to the handle 31 side, and various operating means can be operated quickly, improving operability.

  Since the upper closing body 87 that closes the base of the elevating mechanism 9 and the transmission mechanism 77 substantially horizontally is used as the seat side operation table, the operator's hand mistakenly causes the base of the elevating mechanism 9 and the transmission mechanism 77. It is possible to ensure safety by preventing touching. In addition, since various operation means are arranged in the seat side operation table or in the vicinity thereof, operability can be ensured satisfactorily.

  In addition, since various operation means are arranged on the handle side operation table provided on the handle 31, the various operation means can be appropriately operated in any of the handle operation posture and the seating posture.

  In addition, a shift lever 98 as a shift operation means for shifting the self-propelled device 1, a planting lift lever 97 as a lifting operation means for lifting and lowering the transplanting device 2, and power transmission to the transplanting device are connected to the handle side operation table. Since the planting clutch lever 96 is provided as an intermittent operation means for performing the cutting operation, when the transplanter A is moved to the predetermined heel position while operating the handle 31, the handle side immediately before the transplanting operation is started. Therefore, these operating means can be appropriately operated. It is not necessary to frequently operate these operating means during transplantation work. In addition, since the planting depth adjusting lever 92 as the planting depth adjusting means of the transplanting device 2 and the inter-strain adjusting handle 93 as the inter-strain adjusting unit are provided in the vicinity of the seat side operation table, Subtle adjustment operations between planting depth and stock can be performed in a sitting posture as appropriate.

  Here, each operation means that must be operated immediately before the start of the transplantation work is provided on the handle side operation table, and in the seating posture on the seats 6 and 6, these operation means cannot be operated, while the transplantation work is in progress. The adjustment means that are required to be operated at the same time are provided in the vicinity of the seat side operation console, and the adjustment means cannot be operated in the steering wheel operation posture, so that it is possible to prevent erroneous operation of the adjustment means and the operation means. In addition, the operability can be improved from this point.

  Then, engine stop buttons 88 and 100 as engine stop means, left and right side clutch levers 89, 90, 101 and 102 as left and right intermittent operation means, and main clutch levers 91 and 95 as main intermittent operation means. Since the accelerator levers 103 and 104 serving as acceleration / deceleration means are respectively disposed on the handle side operation table and the seat side operation table as common operation means, the seats 6 and 6 can be used in a posture standing on the handle 31 side. These means can be operated as appropriate even in a posture seated on the chair. In particular, during the transplanting operation, these means can be appropriately operated while seated on the seats 6 and 6, so that the trouble of moving to the handle 31 side by side is eliminated and the efficiency of the transplanting operation can be improved.

  In particular, the engine stop buttons 88 and 100 serving as engine stop means are arranged at positions on the seat side operation console that can be operated from the posture seated on any of the left and right seats 6 and 6, and also on the handle side operation table. Therefore, the operability of the engine stop buttons 88 and 100 can be secured satisfactorily, and the engine 72 can be appropriately stopped by operating the engine stop buttons 88 and 100. Therefore, the self-propelled device 1 and the transplant device 2 that constitute the transplanter A can be promptly stopped in an emergency, and the safety can be ensured satisfactorily. As a result, a sense of security can be given to the worker, and the mental fatigue of the worker can be reduced.

[Transplant device 2]
As shown in FIGS. 1, 2, and 11, the transplanting device 2 receives a seedling supply unit 110 that supplies seedlings such as vegetables, and a seedling supplied from the seedling supply unit 110, and transplants seedlings into the cocoon U The transplanting part 111 to be mounted is mounted on an attachment frame body 112 formed in a quadrangular three-dimensional frame shape.

[Seedling supply unit 110]
As shown in FIGS. 12 to 14, the seedling supply unit 110 has a transport body 114 disposed substantially horizontally on the upper forming frame piece 113 of the mounting frame body 112, and a transport guide section is disposed on the outer periphery of the transport body 114. 115 is formed, and the seedling transport pot series 116 is circulated and moved in a horizontally long ring shape while transporting the guide on the transport guide portion 115.

(Conveyer 114)
The transport body 114 is arranged with a pair of left and right drive shafts 117 and a driven shaft 118 facing each other in the vertical direction, with a drive sprocket 119 provided on the top of the drive shaft 117 and provided on the top of the driven shaft 118. The interlocking chain 121 is wound between the driven sprocket 120 and a sprocket-like left rotating piece 122 is attached to the upper end of the drive shaft 117, while a sprocket-like right rotating member 123 is attached to the upper end of the driven shaft 118. ing. Here, the left and right rotating bodies 122 and 123 are formed in a sprocket shape by forming a large number of recesses in the peripheral portion, and each recess is formed in a semicircular recess shape that engages with the outer peripheral surface of each pot body 135 to be described later. is doing. Reference numeral 124 denotes a transmission driving mechanism. Reference numeral 155 denotes a cover body disposed between the left and right rotating bodies 122 and 123.

(Conveyance guide 115)
As shown in FIG. 13 and FIG. 15, the conveyance guide unit 115 has a seedling replenishment path X that moves linearly from right to left in the vicinity of the seats 6 and 6, and in front of the seats 6 and 6. A seedling supply path Y that moves linearly from left to right, and left and right circular arc paths Z and Z that connect both ends of the seedling supply path X and the seedling supply path Y are provided. In the supply path Y, the seedlings for a total of 4 pieces every 2 pieces are sequentially dropped and supplied. P1 to P4 shown in FIG. 15 are first to fourth lid opening positions for opening the bottom lid of the seedling transport pot described later. And the 1st-4th lid-opening positions P1-P4 are arrange | positioned at the substantially equal space | interval in the virtual same straight line shape extended in the left-right width direction.

  That is, as shown in FIG. 15, the conveyance guide unit 115 is configured by arranging rod-shaped wires along the seedling replenishment path X and the left and right arc paths Z, Z on a substantially same plane, and sliding / supporting pieces 125. The first to third engagement / support pieces 126, 127, and 128 are formed by arranging linear and rod-like wire rods along the seedling supply path Y.

  The first engagement / support piece 126 is extended in the left-right direction and disposed in front, and the second and third engagement / support pieces 127, 128 are extended in the left-right direction so as to face the rear in parallel. Are arranged virtually in a straight line.

  Moreover, the left end 126a, which is the starting end of the first engagement / support piece 126, is partially overlapped with the left end 125b, which is the end of the sliding / support piece 125, in the front-rear direction. The right end 126b, which is the terminal portion of the first engagement / support piece 126, is disposed in the vicinity of the third lid opening position P3. The left end 127a, which is the starting end of the second engagement / support piece 127, is in the first lid opening position P1 in a non-polymerized state in the front-rear direction with the left end 125b, which is the end of the slide / support piece 125. It is arranged in the vicinity. The right end 127b, which is the end of the second engagement / support piece 127, is disposed in the vicinity of the second lid opening position P2. The left end 128a, which is the starting end of the third engagement / support piece 128, is formed in a slope shape that is bent downward and is constant with the right end 127b of the second engagement / support piece 127. They are separated by a width. The right end portion 128b, which is the terminal portion of the third engagement / support piece 128, is disposed in the vicinity of the fourth lid opening position P4. 125a is a right end that is a starting end of the sliding / supporting piece 125, and is formed in a slope shape by bending downward.

  Further, as shown in FIGS. 12 to 14, a rod-shaped guide piece 129 is arranged in a ring shape above the conveyance guide portion 115. Reference numerals 130, 131 and 132 denote support piece connecting brackets, and 133 denotes a guide piece support bracket.

(Seedling transport pot series 116)
As shown in FIGS. 12 to 14, the seedling transport pot series 116 is formed in an endless shape by connecting peripheral walls of a large number of cup-shaped seedling transport pots 134 that individually store and transport seedlings.

  The seedling transport pot 134 is formed by attaching a cylindrical pot body 135 whose axis is directed in the vertical direction and one end of the bottom lid 136 to the lower end of the pot body 135 on the transport direction side.

  Here, as shown in FIGS. 16 and 17, connecting pieces 137 and 137 project in a bifurcated manner in the middle of the pot body 135 in the transport direction side, while being opposite to the pot body 135 transport direction. A connecting piece 138 that fits between the connecting pieces 137 and 137 projects in the middle of the side, and the connecting pins 139 are vertically moved through connecting holes (not shown) formed in the connecting pieces 137, 137, and 138, respectively. It is connected by penetrating in the direction. A projecting body 140 is bulged outwardly from the lower connecting piece 137 along the outer peripheral surface of the pot body 135 so as to bulge outwardly (in a bowl shape). The guide pieces 129 are arranged in a ring shape on the outer peripheral side of the seedling transport pot series 116 along the upper surfaces of the overhanging bodies 140.

  In this way, when the posture of the seedling transport pot 134 is about to be changed from a vertically standing state to a state where the seedling transport pot 134 is tilted to the inner peripheral side that circulates and moves, the guide piece 129 is inserted through the overhanging body 140. When the posture change of the seedling transport pot 134 is restricted, and when the seedling transport pot 134 is about to be tilted toward the outer peripheral side that circulates, the posture change of the seedling transport pot 134 is restricted via the guide piece 129. I try to do it.

  Here, depending on the type of seedling, there is a seedling having a high height (for example, an onion). Such a seedling protrudes upward from the upper end opening 135a of the seedling transport pot 134, and the seedling transport pot 134 Since the posture of the seedling transport pot 134 is leaned to lean, it is likely to be inclined to the inner peripheral side or the outer peripheral side that circulates from the vertically upright state. Therefore, it is possible to ensure good transportability, which is the circulating movement of the seedling transport pot series 116.

  In addition, as shown in FIG. 17, a cylindrical extension pot body 141 whose axis is directed in the vertical direction is inserted into the pot main body 135 so as to be freely detachable from above, so that the cylinder length of the seedling transport pot 134 can be changed. There is no.

  In this way, if the height of the seedlings is large enough to protrude from the upper end opening 135a of the seedling transport pot 134, or if it is high enough to hang down, the additional pot body 141 is inserted into the pot main body 135. The tube length of the seedling transport pot 134 can be increased. Therefore, it is possible to prevent the seedling accommodated (injected) in the seedling transport pot 134 from dripping or dripping even if the seedling protrudes greatly from the upper end opening 135a of the seedling transport pot 134, and when the bottom cover 136 is opened. Inheritance of seedlings to the transplanted part 111 can be performed accurately. As a result, the seedling supply efficiency of the seedling supply unit 110 that supplies seedlings to the transplanting unit 111 can be improved.

  As shown in FIG. 17, the bottom lid 136 has a disk shape that is substantially the same diameter as the outer diameter of the lower end of the pot body 135, and is attached to a pivot piece 142 that is suspended from the lower end of the pot body 135 on the conveyance side. A projecting piece 143 extending from the peripheral end surface of the lid 136 is pivotally supported by a pivot pin 144 whose axis is directed in a direction orthogonal to the transport direction (movement direction). A torque spring 145 is wound around the pivot pin 144 to elastically bias the other end side of the bottom lid 136 so as to rotate downward, thereby opening the lower end opening 135b of the pot body 135. It is in a state.

  A pin-shaped engagement piece 147 extending in a direction substantially orthogonal to the conveyance (moving direction) is provided on the bottom lid 136 provided in the predetermined seedling conveyance pot 134. That is, the engagement piece 147 of the first seedling transport pot 134 is not protruded from the peripheral end surface of the bottom lid 136. The engagement piece 147 of the second seedling transport pot 134 protrudes rearward from the peripheral end surface of the bottom lid 136 to form a rear engagement protrusion 147b. The engagement piece 147 of the third seedling transport pot 134 protrudes forward from the peripheral end surface of the bottom lid 136 to form a front engagement protrusion 147a. The engagement pieces 147 of the fourth seedling transport pot 134 protrude forward and backward from the peripheral end surface of the bottom lid 136 to form a front engagement protrusion 147a and a rear engagement protrusion 147b. The front engagement protrusion 147a slides and moves on the sliding / supporting piece 125 in the engaged state, while the rear engagement protrusion 147b is the first engagement / supporting piece 126 or the second engagement. -It slides on the support piece 127 in the engaged state.

  In this way, the bottom lid 136 of the first seedling transport pot 134 is opened at the first opening position P1, and the bottom lid 136 of the second seedling transport pot 134 is at the second opening position P2. The bottom lid 136 of the third seedling transport pot 134 is opened at the third open position P3, and the bottom lid 136 of the fourth seedling transport pot 134 is at the fourth open position P4. To open the lid. Then, the seedling transport pot series 116 is formed in an endless annular form as a set in the order of the first to fourth seedling transport pots 134, 134, 134, 134, and is circulated and moved immediately before. The timing at which the bottom lid 136 of the second seedling transport pot 134 is opened at the second opening position P2, and the bottom lid 136 of the first seedling transport pot 134 of the immediately following set is at the first opening position P1. The timing at which the bottom lid 136 of the fourth seedling transport pot 134 of the preceding preceding set is opened at the fourth opening position P4 and the immediately following set are immediately synchronized. The timing at which the bottom lid 136 of the third seedling transport pot 134 opens at the third lid opening position P3 can be synchronized.

  Here, the transport body 114 is composed of rod-shaped first to third engagement / support pieces 126, 127, 128 and a rod-shaped slide / support piece 125, and protrudes from the bottom lid 136 of the seedling transport pot 134. The bottom cover 136 is opened at a predetermined opening position by releasing the engagement between the front / rear engagement protrusions 147a, 147b and the engagement / support pieces 126, 127, 128, Further, since the bottom lid 136 is closed by being conveyed along the right end portion 125a of the sliding / supporting piece 125, the structure of the seedling supply unit 110 is simplified and the weight of the machine body is reduced. As a result, the manufacturing cost can be reduced.

  In addition, compared to the conventional transport body formed in a plate shape, the transport body 114 is configured by a rod-shaped body, so that scattered soil, dust, and the like can be prevented from being accumulated on the transport body 114. The sliding mobility of the front / rear engagement protrusions 147a, 147b on the mating / supporting pieces 126, 127, 128 can be ensured satisfactorily. As a result, when the bottom lid 136 is opened via the front / rear engagement protrusions 147a and 147b, the operation timing of the seedling supply unit 110 to which the seedling is supplied from the pot body 135 and the supplied seedling are received. The operation timing of the transplanting unit 111 is adapted, so that the seedling is inherited and transplanted accurately. Moreover, the trouble of frequently cleaning the transport body 114 can be reduced.

  Furthermore, by arranging the two rod-like engagement / support pieces 126 and 127 in a substantially parallel manner, the position of the bottom lid 136 where the lid is opened can be appropriately increased according to the number of grafts. Moreover, the simplicity of the structure and the weight reduction of the aircraft can be ensured.

[Transplanted part 111]
As shown in FIGS. 1 to 3 and 11, the transplant unit 111 is provided with a pair of left and right transplant units 150, 150 on the mounting frame 112, and each transplant unit 150, 150 is a pair of left and right transplants 151, 151. And transplantation elevating mechanisms 152 and 152 for elevating and lowering the transplants 151 and 151 between the raised joint position and the lowered transplant position.

  A total of four transplants 151, 151, 151, 151 are arranged immediately below the first to fourth lid-opening positions P1 to P4, respectively, and their vicinity positions are used as seedling inheritance positions. Reference numeral 153 denotes a cover ring.

  Moreover, the raising / lowering mechanism 152 for transplantation can adjust the planting depth of a seedling by changing the descent | fall position suitably by adjusting operation of the above-mentioned planting depth adjustment lever 92. FIG.

  In this way, each transplant unit 150, 150 is configured so as to perform a transplant operation for a total of four lines by two.

  It is possible to provide a transplanter that can appropriately cope with a case where adjustment of the wheel interval is required.

A transplanter 1 self-propelled device 2 transplanter 3 front wheel 4 rear wheel 5 body frame 6 seat 7 transmission unit 8 prime mover unit 9 lifting mechanism

Claims (3)

In the self-propelled device that is capable of self-propelled while straddling the heel, a transplant device that enables transplanting of seedlings is provided,
The self-propelled device has a vehicle frame horizontally mounted between a pair of left and right front wheels and a rear wheel, and a seat, a transmission unit, and a motor unit are disposed on the vehicle frame,
The transplant device is a transplant machine that is arranged to be raised and lowered via a lifting mechanism in front of the seat,
The pair of left and right front wheels and rear wheels can adjust the wheel spacing in the left-right width direction,
The rear part of the fuselage frame was extended in the left-right direction from the left and right sides of the transmission part via a pair of left and right connecting extension parts extending in the front-rear direction to the connection left-right extension piece extended in the left-right direction. A pair of left and right transmission shaft cases are connected to form a framework,
The rear ends of the pair of left and right transmission cases extending in the front-rear direction are connected to both outer ends of the connecting left and right extension pieces, and the rear portions of the transmission cases are connected to the outer end portions of the pair of left and right transmission shaft cases. The rear part of each transmission case is constructed in the form of a bridge on the outer end of the connecting left and right extension pieces and the outer end of the transmission shaft case,
The outer side portions of the connecting left and right extension pieces and the outer side portions of the pair of left and right transmission shaft cases are formed so as to be integrally adjustable in the left-right width direction via the pair of left and right transmission cases. A transplanter characterized in that a pair of left and right rear wheels are linked and connected to the front.   The front end of the fuselage frame is formed by laying a cylindrical support extending in the left-right direction, and the inner side of the adjustment support extending in the left-right direction is attached to the left and right ends of the cylindrical support. The upper end of the front wheel support piece that extends in the vertical direction is connected to the outer end of each adjustment support body, and the front axle is connected to the lower end of each front wheel support piece. The transplanter according to claim 1, wherein the front wheel is mounted so as to be able to roll through the wheel.   The cylindrical support is installed between a pair of left and right mounting supports, and the rotational position of the cylindrical support is adjustable around the axis of the cylindrical support so that the front wheel can be adjusted by adjusting the rotational position of the cylindrical support around the axis. The transplanter according to claim 2, wherein the vertical position can be adjusted.

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