JP2011152091A - Seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling transplanter which enables seedlings to be put into a plurality of seedling-supplying cups of a seedling-supplying part more efficiently than before. <P>SOLUTION: The seedling transplanter is configured such that a seedling transplanting body 60 transplants seedlings to a field, which seedlings sequentially fall to the seedling transplanting body 60 from a plurality of the seedling-supplying cups 40 with an openable bottom lid each of which stores each of the seedlings provided on a traveling part 1a and is conveyed along a predetermined path, and a seedling-holding mechanism 71 is provided with a seedling conveying belt 70 for conveying the seedlings supplied between protrusions 70a thereof above a seedling-supplying device 4 provided with the seedling-supplying cups 40. Since a seedling-holding mechanism 71 is provided above the seedling-supplying device 4, the seedlings can easily be supplied to the seedling-holding mechanism 71, thereby improving the seedling-supplying workability of the seedling-holding mechanism 71 better than before. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a seedling transplanting machine for transplanting seedlings such as leek seedlings to a field field.

  A leek seedling is dropped on a seedling planting body of a seedling planting unit arranged below a predetermined position of a seedling feeding unit that circulates a plurality of connected seedling feeding cups in the horizontal direction, and the seedling planting body is moved vertically 2. Description of the Related Art A seedling transplanting machine having a configuration in which a leek seedling is planted in a field farm by inserting a tip portion that has reached a field farm scene in the process of movement into the field is known. For example, in the seedling transplanting machine described in Patent Document 1 below, since the front wheel and the cover ring are arranged in the groove, the machine body can be guided along the groove at the front and rear positions sandwiching the rear wheel, and the straightness of the machine body is improved. We are trying to secure it.

JP 2004-180536 A

  According to the configuration of the transplanter shown in Patent Document 1 above, the onion seedlings are sequentially supplied manually to the plurality of seedling supply cups of the seedling supply unit, so there is room for improvement in the work efficiency of seedling supply. .

  Then, the subject of this invention is providing the seedling transplanting machine which can perform the operation | work which puts a seedling into the several seedling supply cup of a seedling supply part more efficiently than before.

  In order to solve the above-mentioned problem, the following solution is adopted.

  The invention described in claim 1 includes a traveling part (1a) having front and rear wheels (2, 3) and a planting part (1b) having a seedling planting mechanism, and each seedling is placed in the planting part (1b). A seedling supply device (4) for storing a plurality of seedling supply cups (40) that can be stored and whose bottom cover can be opened along a predetermined transfer path, and a seedling supply device (4) below the seedling supply device (4) 4) A seedling planting device (5) having a seedling planting body (60) for planting the seedling dropped and supplied in the field, and a link for moving the seedling planting device (5) up and down along a predetermined operating locus. In the seedling transplanting machine provided with the planting transmission mechanism in the planting transmission case (31, 32) provided in the mechanism (45) and moving the link mechanism (45) up and down in the traveling section (1a), the seedling supply device (4) The seedling insertion mechanism (71) that can sequentially supply seedlings to the seedling supply cup (40) is provided at the top of (4). A seedling transplanting machine according to symptoms.

  The invention as set forth in claim 2 is characterized in that the seedling placement mechanism (71) includes a seedling transport belt (70) for arranging the seedlings obliquely at a predetermined angle from the vertical direction. Machine.

  According to a third aspect of the present invention, the conveyor belt (70) of the seedling insertion mechanism (71) has a belt conveying surface on the seedling supply side substantially in a horizontal state, and the belt conveying surface is arranged at a seedling supply position to the seedling cup (40). The seedling transplanter according to claim 1, wherein the inclination angle of the belt conveyance surface is sequentially changed in accordance with the seedling conveyance direction of the seedling conveyance belt (70) so as to be substantially vertical.

  According to the first aspect of the present invention, since the seedling feeding mechanism 71 is provided at the upper part of the seedling feeding device 4, the seedling feeding side to the seedling feeding mechanism 71 is facilitated, and the seedling feeding workability of the seedling feeding mechanism 71 is conventionally improved. More improved.

  According to the second aspect of the invention, in addition to the effect of the first aspect, the seedling supply to the belt conveying surface of the seedling conveying belt 70 of the seedling inserting mechanism 71 is facilitated, and the seedling conveying belt 70 of the seedling introducing mechanism 71 is facilitated. The workability of supplying seedlings to the plant is improved compared to the conventional method.

  According to the third aspect of the invention, in addition to the effect of the first aspect, the belt conveyance surface of the seedling conveyance belt 70 of the seedling placement mechanism 71 is at a position where it drops onto the seedling cup 40 from the substantially horizontal direction on the seedling supply side. Since the inclination angle is gradually increased in the substantially vertical direction, the seedling supply to the seedling transport belt 70 is facilitated, and the workability of supplying the seedling to the seedling transport belt 70 is improved as compared with the conventional art. In addition, since the seedlings are almost in the vertical direction at the position where they fall into the seedling cup 40, the seedlings are supplied appropriately.

It is a side view of the seedling transplanter of the embodiment of the present invention. It is a top view of the seedling transplanting machine of FIG. It is an enlarged plan view (Drawing 3 (a)) and a side view (Drawing 3 (b)) of a seedling supply device part of another example of the present invention. The side view (FIG. 4 (a)) of the main part of the seedling planting body for explaining the function of the scraper which is a member for removing the mud adhering to the seedling planting body of the seedling planting device of the seedling transplanting machine of FIG. It is the side view (FIG.4 (b)) made into curved shape.

A mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 show a side view and a plan view of an overall structural view of a seedling transplanting machine for transplanting leek seedlings (I) of this embodiment.

  This seedling transplanting machine 1 is a green onion seedling in a planting unit 1b comprising a seedling feeding device 4, a seedling planting device 5 and the like while the vehicle is advanced to a field scene by a traveling unit 1a having rear wheels 2, 2 and a front wheel 3. (I) is configured to be planted in the field. The front wheel 3 travels in the ridge groove, and the pair of left and right rear wheels 2 and 2 travel on the upper surface of the ridge U.

  The operator appropriately steers the aircraft with the steering handle 6 provided at the rear of the aircraft, and supplies seedlings to the seedling supply device 4 while walking on the side of the aircraft during planting work. Hereinafter, the configuration of each unit will be described. In addition, the forward direction of the seedling transplanter 1 is referred to as forward, the backward direction is referred to as backward, and the left side and the right side toward the forward direction are referred to as left and right, respectively.

First, the traveling unit 1a will be described.
An engine 9 is disposed in front of the traveling unit transmission case 7, and a hydraulic pump 10 that is driven by the power of the engine 9 is provided on the left side surface of the engine 9. Further, a fuel tank 11 and the like are provided on the upper side of the engine 9, and a bonnet 12 covers the upper side thereof. A long connecting frame 13 having a rectangular shape in side view is integrally provided on the back surface of the traveling unit transmission case 7, and the front end of the main frame 14 that connects the traveling unit 1 a and the steering handle 6 to the right rear end of the connecting frame 13. The parts are fixedly connected. The main frame 14 extends rearward through the right side of the planting part 1b in plan view, bends obliquely upward in the middle, and extends as it is to the rear position of the planting part 1b. The steering handle 6 is fixedly attached to the rear end portion.

Traveling transmission cases 16, 16 are integrally attached to the rotating cylinders 15, 15 projecting from the left and right side surfaces of the traveling unit transmission case 7, and the rear wheels 2 that are driving traveling wheels are attached to the distal ends of the traveling transmission cases 16, 16. 2 is pivotally supported.
The engine support frame 17 on the lower side of the engine 9 is provided with a pivot shaft 17a at the center of the body, and the pivot shaft 17a has a mounting hole (not shown) capable of changing the vertical support position with respect to the body. The ground contact height of the front wheel 3 can be adjusted by changing the vertical support position.
The hydraulic valve unit 35 disposed on the traveling unit transmission case 7 of the traveling unit 1a is provided with an elevating cylinder 21 toward the rear thereof, and a balance rod 22 is arranged in the vertical direction at the tip of the piston rod 21a of the cylinder 21. It is attached so as to be rotatable around the axis of the. The piston rod slides along a guide shaft (not shown) supported by an attachment member (not shown) attached to the hydraulic valve unit 35 and the main frame 14.

  Swing arms 25 fixed to both left and right ends of the balance rod 22 and a pair of rotating cylinder portions 15 (the right rotating cylinder portion 15 is not shown) are connected to each other via a connecting rod 26. The left connecting rod 26 has a rolling cylinder 27 incorporated therein, and the length of the connecting rod 26 can be changed by expanding and contracting the cylinder 27.

  The elevating cylinder 21 and the rolling cylinder 27 are operated by controlling the hydraulic oil supplied from the hydraulic pump 10 with a control valve (not shown) in the hydraulic valve unit 35. When the lifting cylinder 21 is expanded and contracted, the balance rod 22 moves back and forth. Since the swing arm 25 is connected to the elevating cylinder 21, it moves up and down in conjunction with the back-and-forth movement of the balance rod 22, and the left and right rear wheels 2 and 2 integrated therewith are the same amount in the same direction. The aircraft moves up and down and the aircraft moves up and down. Further, when the rolling cylinder 27 is extended and contracted, only the left and right (left side) rear wheels 2 move up and down with respect to the body, and the body tilts left and right.

  The output shaft of the engine 9 enters the transmission case 7 at the rear of the engine 9, and the engine power is transmitted from the output shaft of the engine 9 to the transmission mechanism in the transmission case 7. A traveling transmission case 16 is attached to both left and right sides of the transmission case 7 so as to be rotatable about a rotation fulcrum 16b. The traveling transmission case 16 is extended from the transmission case 7 to the left and right outer sides on the rotation fulcrum 16b. The distal end of the rotating cylinder portion 15 enters and transmits power for traveling to the transmission mechanism in the traveling transmission case 16. The traveling power is transmitted to the axle 18 extending rearward of the machine body and projecting to the rear end side via the transmission mechanism in the traveling transmission case 16, and the rear wheels 2 on both sides are driven to rotate.

Next, the structure of the planting part 1b is demonstrated.
The lower part of the planting part mission case 30 transmitted from the traveling part mission case 7 is fixed to the upper surface of the connecting frame 13, and the base part of the first planting transmission case 31 is fixed to the upper part of the planting part mission case 30; Further, the base of the second planting transmission case 32 is fixed to the tip of the first planting transmission case 31. The first planting transmission case 31 and the second planting transmission case 32 are connected to an operation mechanism of a seedling planting device 5 described later. The seedling planting body 60 of the seedling planting device 5 is located on the rear side of the traveling unit 1a. In addition, a seedling stage 55 is attached to the upper frame 34 whose base is fixed to the planting part mission case 30, the seedling supply device 4 is arranged behind the seedling stage 55, and the seedling supply device 4 and the seedling stage 55. Is arranged so as to be located above the seedling planting body 60.

  In a side view, the planting part mission case 30 is provided rearward and upward from the connection frame 13, and the first planting transmission case 31 is provided rearward and downward from the upper end part of the planting part mission case 30, and the second planting The auxiliary transmission case 32 is provided horizontally rearward from the lower end of the first planting transmission case 31. With this configuration, a space for moving the balance rod 22 below the second planting transmission case 32 is ensured without making the longitudinal length of the airframe longer than necessary.

Further, in plan view, the planting part mission case 30 is fixed to the right end of the connection frame 13, and is located on the right side of the airframe control mechanism formed between the elevating cylinder 21, the balance rod 22, and the right connection rod 26. It extends upward through the space. The first planting transmission case 31 is arranged on the left side of the planting part mission case 30, and the second planting transmission case 32 is arranged further on the left side of the first planting transmission case 31. Since the right space part is wider than the left space part by the amount that the rolling cylinder 27 is not provided, it is preferable to arrange the planting part mission case 30 on the right side.
In addition, by arranging the planting part mission case 30, the first planting transmission case 31, and the second planting transmission case 32 in the left and right direction, the right and left weight balance is improved.

Next, the seedling supply device 4 and the seedling planting device 5 will be described.
The seedling planting device 5 has a beak-shaped seedling planting body 60 whose tip is directed downward, and seedling planting at a position where the lower end of the seedling planting body 60 is above the field scene and below the field scene. The link mechanism 45 for moving the appendage 60 up and down, the closed state in which the lower end of the beak-like seedling planting body 60 is closed and the seedling is received from above and the seedling can be accommodated inside, and the lower end of the seedling planting body 60 An opening / closing mechanism (not shown) for opening and closing the seedling planting body 60 is provided in an open state in which the part opens to the left and right and allows the seedling accommodated inside to be released downward.

  The transmission mechanism built in the planting part mission case 30 includes an intermittent drive mechanism and a link for stopping the link mechanism 45 and the seedling planting body 60 at the uppermost position of the raising / lowering movement or at a position in the vicinity thereof for a set time. The mechanism 45 and the clutch mechanism which stops the raising / lowering motion of the seedling planting body 60 are provided. The time for stopping by the intermittent drive mechanism is adjusted by a speed change mechanism provided in the intermittent drive mechanism, and the adjustment between the seedling planting stocks by the seedling planting body 60 is adjusted by this adjustment.

  And the link mechanism 45 is provided with the raising / lowering arm 46 connected with the left-right intermediate part of the shaft 19 of the left-right direction provided in the front side of the seedling planting body 60 rotatably. Although the details are omitted, the elevating arm 46 moves up and down while swinging, and as a result, the lower end of the seedling planting body 60 moves up and down along a substantially crescent-shaped locus X (FIG. 1) that is long in the vertical direction when viewed from the side. To do.

  The seedling supply device 4 is connected to one rotating shaft 42a of the sprockets 42, 42, the second planting transmission case 32, the universal joint 43a, and the transmission shaft 43b, thereby transmitting the power from the engine 9 to the left and right sprockets. The moving mechanism 61 (FIG. 1) which rotates the 42 and 42 and rotates the seedling supply cup 40 is provided. Further, the sprockets 42 and 42 are intermittently driven and controlled by a rotation restricting member such as a ratchet arm (not shown) from the drive mechanism in the planting section mission case 30 via the transmission shaft 43b, and the seedling supply cup 40 is sequentially connected to the sprocket. It rotates by 42,42.

In this way, the seedling supply device 4 that supplies the seedlings to the seedling planting device 5 includes a plurality of seedling supply cups 40 that receive the seedlings from above and accommodate the seedlings inside, and the seedling supply cups 40. A moving mechanism 61 that moves around so as to pass above the seedling planting body 60 and a seedling planted by dropping the seedling accommodated inside by opening the bottom of the seedling supply cup 40 at a position above the seedling planting body 60. An opening / closing mechanism for supplying seedlings to the appendage 60 is provided.
The seedling planting device 5 has a configuration of a plurality of strips in which a plurality of seedling planting bodies 60 are arranged side by side at set intervals. In this example, it is set as the structure of the two-row planting which arranged the seedling planting body 60 side by side with the set space | interval by two sets.

  Synchronously with the operation of the moving mechanism 61 of the seedling planting device 5, the seedling supply cups 40,... Rotate intermittently at intervals of the mounting interval, and the bottom of each seedling supply cup 40,. ) Is opened at a specific position, so that the seedling supplied to the cup-shaped seedling planting body 60 with the sharp tip of the seedling planting device 5 can be planted in a groove or the like in the field. The cup-shaped seedling planting body 60 moves along the locus indicated by a one-dot chain line X in FIG. 1 and receives a seedling from the seedling supply cup 40 near its top dead center, and opens near its bottom dead center, Is planted in the groove.

On the front side of the seedling planting device 5, a seedling placing table 55 on which a seedling tray (not shown) is placed is provided. The seedling mount 55 is attached via a mounting rod (not shown) protruding forward from the upper frame 34, and is provided so as to horizontally support the seedling tray.
The seedling supply cups 40,... Are replenished manually with pot seedlings on the seedling tray placed on the seedling placing stand 55. When the seedling supply cup 40 containing seedlings is rotationally moved to the seedling supply position by the moving mechanism 61, the shutter (not shown) is opened and the seedlings fall into the seedling planting body 60 of the seedling planting device 5.

  The steering handle 6 is substantially U-shaped in plan view with both ends extending rearward, and grips 6a and 6a are attached to both ends. When turning or traveling on the road, the operator grips the grips 6a and 6a to operate. Since the steering handle 6 is shifted from the right and left center of the aircraft to the right, it is easy to operate the handle and replenish the seedling while walking in the groove on the right side of the heel, and to replenish the seedling while walking the left side of the aircraft. Do not get in the way when doing.

  Side clutch levers 100, 100 are provided below the grips 6a, 6a. In addition, an operation panel 101 is provided at the base of the steering handle 6, and the operation panel 101 is used to turn on / off a planting clutch that is transmitted to the seedling supply device 4 and the seedling planting device 5 and to move the aircraft up and down. A planting lift lever 102, a main clutch lever 103 for turning on and off the main clutch, and the like are provided. In a seedling transplanting machine in which the front wheel 3 is a driving wheel and the front and rear wheels 3 and 2 are both moved up and down, the handle 6 is lifted to lift the rear wheel 2 off the field, and the body is turned by the front wheel 3.

  According to the present embodiment, the front wheel turning device 50 that turns the left and right direction of the front wheel 3 is provided, and the turning operation tool 51 of the front wheel turning device 50 is moved to the left and right with respect to the front wheel 3 and the seedling planting body 60. It is provided on one side.

  As shown in FIG. 2, the attachment member 52 is connected to the intermediate portion of the rod 53 of the turning operation tool 51, and the tip portion of the rod 53 is connected to the rod 56 and one end of the rod 54. The other end of the rod 56 is fixed to the machine body side, and the other end of the rod 54 is connected to one end of the rod 57. Further, since the other end of the rod 57 and the upper end of the L-shaped rod 58 are connected, the rods 54, 56, 57 and 58 form a rectangular shape in plan view.

  And since the lower part of the rod 58 is connected with the pivot shaft 17a in the upper part of the front wheel 3, the rod 58 can be turned around the pivot shaft 17a. When the rod 58 changes direction, the rod 57 also moves in the left-right direction (arrow E direction or F direction). Therefore, the rods 54, 56, 57, 58 move in the left-right direction (arrow E direction or F direction) while maintaining the shape of the parallelogram in plan view, and the front wheel 3 turns to the left and right.

  With such a configuration, when the turning operation tool 51 is moved in the left-right direction (arrow A direction or B direction), the attachment member 52 connected to the turning operation tool 51 rotates in the arrow J direction around the fulcrum 52a. Move. Then, in conjunction with the movement of the mounting member 52 rotating, the rod 53 connected to the mounting member 52 moves in the front-rear direction (arrow C direction or D direction), and further the rod 57 moves in the left-right direction (arrow E direction or F direction).

  That is, when the turning operation tool 51 is moved in the direction of arrow A (right direction), the rod 53 moves in the direction of arrow C, so the rod 54 also moves in the direction of arrow C. The rod 57 moves in the direction of arrow E in conjunction with the rotation of the mounting member 52 that is linked to the movement of the rod 53, and the front wheel 3 is turned to the left. On the other hand, when the turning operation tool 51 is moved in the direction of arrow B (leftward), the rod 53 moves in the direction of arrow D, so the rod 54 also moves in the direction of arrow D. Then, in conjunction with the rotation of the mounting member 52, the rod 57 moves in the direction of arrow F and the front wheel 3 turns to the right.

  By adopting this configuration, the steering control of the seedling transplanter can be performed, and the seedling planting body 60 plants the seedling in the ridge U that has been suppressed by passing through the front wheel 3, so that the planting posture of the seedling is stable, Planting accuracy is improved. In addition, since the seedling planting body 60 is configured to plant a plurality of staggered strips, a plurality of seedlings can be transplanted efficiently in a narrow space because a plurality of strips can be efficiently planted even in a narrow groove. Further, by changing the direction of the front wheel 3 with the front wheel turning device 50, the airframe can be guided in a desired traveling direction, and the straightness of the airframe can be secured. Furthermore, since the operator can easily operate the turning operation tool 51 while walking on the upper surface of the left and right sides of the heel groove for planting the seedling, the burden on the operator is small. In addition, even when multiple strips are planted in a staggered pattern, the front wheel turning device 50 changes the direction of the front wheels 3 to ensure straightness of the aircraft, and the two planting positions are located on the left and right sides of the ridge groove. Can be planted on the edge with high accuracy.

  This embodiment is characterized in that a seedling insertion mechanism 71 having a seedling transport belt 70 is provided on the top of a series of seedling supply cups 40. By providing the seedling transport belt 70, the seedling can be easily and efficiently put into the seedling supply cup 40.

  As shown in FIGS. 1 and 2, the seedling transport belt 70 having a triangular endless belt shape in a plan view of the seedling placement mechanism 71 transfers the leek seedling (I) to the seedling transplant body 60 through the seedling supply cup 40. It is the structure for carrying out fall supply conveyance.

  The seedling transport belt 70 passes through the upper part of the linear trajectory of the seedling supply cup 40 in the circular trajectory formed by the series of seedling supply cups 40, and the bottom lid (see FIG. One drive roller 73 and two followers so that the seedling supply cup 40 can be fed to the seedling supply cup 40 just before the position where the seedling falls to the seedling planting body 60 after being opened. The rollers 74 and 75 are rotated. Although not shown, the driving roller 73 is transmitted with power from a moving mechanism 61 for rotating the seedling supply cup 40.

  The drive roller 73 located at a position deviating from the upper side of the linear trajectory of the seedling supply cup 40 is fixedly supported by the drive shaft of the sprocket 42, and is located near the seedling supply cup 40 where the bottom lid is opened. The driven roller 75 is rotatably supported by a supply plate 79 described later, and the other first driven roller 74 is supported by the plate 79 so as to be movable within a predetermined range, so that the first driven roller 74 is a seedling. It can be used to adjust the tension of the conveyor belt 70.

  A rotation roller 77 is provided on the opposite side of the second driven roller 75 with the seedling conveying belt 70 in between. The rotating roller 77 contacts the seedling conveying belt 70 and rotates.

  Further, a guide member 78 attached to a supply plate 79 described later is provided in front of the rotation roller 77 in the conveyance direction of the seedling conveyance belt 70 so as to have a wide shape in the vertical direction. The guide member 78 is curved so that the upstream side in the transport direction of the seedling transport belt 70 extends in a plan view along the side surface of the supply plate 79 that protrudes outward from the track of the seedling transport belt 70, so that the seedling can be easily received. Therefore, the leek seedling (a) that moves along the seedling transport belt 70 is prevented from moving away from the transport surface of the seedling transport belt 70, and is narrow between the seedling transport belt 70 and the seedling transport belt 70 on the downstream side in the transport direction. Since the space | interval which only a leek seedling (i) passes is provided, it is conveyed toward the seedling planting body 60 upper direction reliably.

  There is a seat 20 in front of the seedling supply device 4, and an operator sitting on the seat 20 can supply seedlings taken out from the seedling mount 55 onto the supply plate 79 of the seedling mechanism 71.

  The seedling transport belt 70 has a size that allows a single leek seedling (I) to enter the surface of the seedling transport belt 70 as shown in a partial cross-sectional view of the belt 70 in the round frame A of FIGS. A plurality of protrusions 70a are provided in parallel in the belt width direction. Therefore, an onion seedling (I) can be reliably conveyed by the seedling conveyance belt 70 only by an operator installing one onion seedling (I) between the two protrusions 70a.

  Further, a supply plate 79 having a horizontal plane supported by the support frame 80 of the seedling supply device 4 is disposed between the seedling transport belt 70 and the seedling planting unit 5. Since a part of the plate 79 is extended so as to have a large area outside the trajectory of the seedling conveying belt 70, a plurality of green onion seedlings (I) can be placed on the protruding plate 79. The operator can reliably perform the operation of sequentially arranging the green onion seedlings (I) between the two protrusions 70a on the surface of the moving seedling transport belt 70.

  As shown in FIG. 1, the seedling transport belt 70 is predetermined above a linear trajectory of the seedling supply cup 40 positioned at the upper part of the seedling planting part 5 in at least a circular trajectory in which the seedling supply cup 40 moves. Therefore, the seedling can be easily supplied to the belt 70, and an operator seated on the seat 20 can easily supply the seedling to the belt 70.

  Further, the width of the seedling transport belt 70 is set to have a height that is at least half that of the leek seedling (I). In this way, the leek seedling (a) is stably conveyed by the seedling conveying belt.

  3 (a) and 3 (b) show an enlarged plan view and a side view of the seedling supply device 4 portion of another embodiment. The seedling transport belt 70 has a configuration in which a plurality of protrusions 70a are formed on the seedling transport belt 70, and a leek seedling (I) is disposed between the two protrusions 70a. The seedlings are transported on the straight path of the seedling supply cup 40 located above the seedling planting body 60 so that the seedlings can be transported. The onion seedling (I) is easily supplied onto the seedling transport belt 70 with the upstream portion of the belt 70 oriented substantially in the horizontal direction, and the seedling at the position where the onion seedling (I) is supplied to the seedling supply cup 40. The seedling transport belt 70 is arranged so as to rise by a predetermined angle (α degree) at the transport belt 70 portion. Therefore, the seedling conveyance belt 70 has a twisted shape as a whole.

  When the seedling transport belt 70 having such a configuration is used, the operator can easily supply the onion seedling (I) on the substantially horizontal plane of the seedling transport belt 70, and the belt position to be supplied to the seedling supply cup 40. Then, since it stands in a substantially vertical direction, it becomes easy to supply the onion seedling (i) to the seedling supply cup 40, and the seedling supply and transport operations can be performed efficiently.

Next, a scraper 77 that is a member for removing mud adhering to the seedling planting body 60 of the seedling planting apparatus 5 will be described with reference to FIG.
The seedling planting body 60 is provided with right and left seedling planting pieces 60a (only one is shown) whose tips are directed downward, and a detailed description thereof is omitted, but the lower end portion of the seedling planting body 60 is from the field scene. A vertical movement mechanism that moves the seedling planting device 5 up and down so as to move up and down between a position that is above and a position that enters the field, and the lower end portions of the right and left seedling planting pieces 60a in the beak shape are closed and upward Seedling planting in a closed state in which seedlings are received from inside and the bottom ends of the left and right seedling planting pieces 60a are opened to the left and right so that the seedlings housed inside can be discharged downward An opening / closing mechanism for opening and closing the body 60 is provided.

  Although not described in detail, the vertical movement mechanism and the opening / closing mechanism of the seedling planting body 60 are driven by driving from the second planting transmission case 32 (FIG. 1), and the seedling planting body is driven by the vertical movement mechanism. The left and right beak bodies (seedling planting pieces) 60a at the lower end of the seedling planting body 60 move with a locus Y shown in FIG.

  In the seedling transplanter of the present embodiment, the scraper 77 is arranged in front of the seedling planting body 60 to remove mud adhering to the inside of the left and right seedling planting pieces 60a in the seedling planting operation process. The scraper 77 moves like a locus Y as the cam 76 provided on the rotating shaft 75 of the second planting transmission case 32 rotates in conjunction with the drive of the vertical movement mechanism. That is, the roller 77b at the end of the support arm 77a of the scraper 77 in contact with the side surface of the cam 76 moves as indicated by the arrow A by the rotation of the cam 76.

  Although detailed description is omitted, the scraper 77 can peel off the mud adhering to the inside of the left and right seedling planting pieces 60a in conjunction with the movement of the locus Y of the scraper 77 and the opening and closing operation of the left and right seedling planting pieces 60a. .

  Further, the scraper 77 can enter the inside of the seedling planting piece 60a from the lower side to the upper side as indicated by the locus Y, and can be removed from the lower part of the seedling planting body 60, so that the scraper 77 also serves as seedling removal. There is. If the scraper 77 has a curved shape as shown in FIG. 4 (b), it can smoothly enter the seedling planting piece 60a.

  The seedling transplanting machine of the present invention is not limited to vegetable seedlings such as leek seedlings (I), but can also be used as a seedling transplanting machine for planting other seedlings.

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 1a Traveling part 1b Planting part 2 Rear wheel 3 Front wheel 3a Mounting member 3b Spring 4 Seedling supply device 5 Seedling planting apparatus 6 Steering handle 6a Grip 7 Traveling part mission case 7a PTO extraction part 8 Guide wheel 9 Engine 10 Hydraulic pump 11 Fuel tank 12 Bonnet 13 Connecting frame 14 Main frame 15 Rotating cylinder 16 Traveling transmission (chain) case 16b Rotating fulcrum 17 Engine support frame
17a Pivot shaft 17b Axle bearing portion 17c Support member 17d Spring reaction force receiving member 17e Guide wheel shaft 17f Support shaft 18 Axle 19 Axis 20 Seat 21 Lifting cylinder
21a Piston 22 Balance scale
25 Swing arm
26 Connecting rod 27 Rolling cylinder 28 Grounding body 29 Sensing link mechanism 30 Planting section mission case
30a Input shaft 31 First planting transmission case 32 Second planting transmission case 34 Upper frame 35 Hydraulic valve unit 38 Bolt 40 Seedling supply cup 41 Turntable 42 Sprocket 42a Rotating shaft 43a Universal joint 43b Transmission shaft 45 Link mechanism 46 Lifting arm 50 Front wheel turning device 51 Turning operation tool 52 Mounting member 52a Support point 53, 54, 56, 57 Rod 55 Seedling stage 60 Seedling planting body 60a Seedling planting piece 61 Moving mechanism
73 Driving roller 74 Driven roller 75 Rotating shaft 76 of the second planting transmission case Cam 77 Scraper 79 Supply plate 80 Support plate

Claims (3)

It has a traveling part (1a) having front and rear wheels (2, 3) and a planting part (1b) having a seedling planting mechanism. The planting part (1b) can store seedlings and the bottom lid can be opened. A seedling supply device (4) that transports a plurality of seedling supply cups (40) along a predetermined transport path, and a seedling that is dropped and supplied by the seedling supply device (4) below the seedling supply device (4) A seedling planting device (5) having a seedling planting body (60) for planting the plant in the field, and a link mechanism (45) for moving the seedling planting device (5) up and down along a predetermined operating locus, In the seedling transplanting machine provided with the planting transmission mechanism in the planting transmission case (31, 32) for moving the link mechanism (45) up and down in the traveling part (1a),
A seedling transplanting machine, wherein a seedling feeding mechanism (71) capable of sequentially supplying seedlings to the seedling supply cup (40) is provided at an upper portion of the seedling supply device (4).   The seedling transplanting machine according to claim 1, wherein the seedling placement mechanism (71) includes a seedling transport belt (70) for arranging the seedlings obliquely at a predetermined angle from the vertical direction.   The conveyor belt (70) of the seedling insertion mechanism (71) has a belt conveying surface on the seedling supply side in a substantially horizontal state, and the belt conveying surface in a seedling supply position to the seedling cup (40) is in a substantially vertical state. The seedling transplanting machine according to claim 1, wherein the inclination angle of the belt conveying surface is sequentially changed in accordance with the seedling conveying direction of the conveying belt (70).

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