JP2013021995A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transplanter equipped with a scraper simple in constitution and scraping mud that sticks to the inside of a planting body appropriately and excellently because a conventional transplanter is constituted to provide a scraper at a transmission case for driving a link mechanism for operating a seedling planting body up and down and to drive the scraper by a separate drive mechanism, thereby causing such a situation that the scraper cannot perform an appropriate and excellent scraping operation due to contact or the like when the scraper enters the inside of the seeding planting body if the operation timing between the scraper and the seedling planting body goes wrong, and moreover the drive mechanism is complicated and not simple in constitution.SOLUTION: This transplanter is equipped with a planting body 25 operated up and down being mounted to a vertical moving mechanism 26 driven by a motor 5, to open planting pieces 25F, 25R facing each other and rushing into the field, to thereby transplant transplantation objects. The vertical moving mechanism 26 is mounted with a scraper apparatus 100 for cleaning soil and foreign matter that stick to the planting body 25.

Description

  The present invention relates to a transplanter for transplanting vegetable seedlings such as onion seedlings, various seedlings such as tobacco seedlings and flower seedling seedlings, and bulbs such as potato seedlings and raccoons to a field.

  Conventionally, as shown in Patent Document 1 below, there is a transplanter provided with a scraper that moves up and down by a link mechanism and drops mud adhering to the inside of a seedling planting body for planting seedlings in a field.

JP 2010-51237 A

  The scraper enters the seedling planting body at a delicate timing immediately after the seedling planting planting the seedling in the field, and removes mud adhering to the inside. Since the conventional transplanter has a configuration in which a scraper is provided in a transmission case that drives a link mechanism that moves the seedling planting body up and down, and the scraper is driven by a separate driving mechanism, the scraper and the seedling planting body If the operation timing of the car is out of order, the scraper may come into contact with the inside of the seedling planting body, causing a situation in which an appropriate and good scraping action cannot be performed, and the drive mechanism is not complicated and concise. .

  Therefore, an object of the present invention is to provide a transplanter equipped with a scraper that has a simple configuration and appropriately removes mud adhering to the inside of a planted body.

In order to solve the above problems, the following technical measures were taken.
That is, the invention according to claim 1 is mounted on the vertical movement mechanism 26 driven by the prime mover 5 and operates up and down, and enters the farm field and opens the opposing planting pieces 25F and 25R to transplant the transplant. In the transplanter equipped with the planting body 25, the transplanter was equipped with the scraper device 100 for cleaning the soil and foreign matter adhering to the planting body 25 on the vertical movement mechanism 26.

  Accordingly, in the first aspect of the present invention, the scraper device 100 for cleaning soil and foreign matter adhering to the planting body 25 is mounted on the vertical movement mechanism 26 to which the planting body 25 is mounted. The proper positional relationship is maintained without shifting the positional relationship, and the soil and foreign matter attached to the planting body 25 can be properly cleaned by the scraper device 100, and the configuration and operation are simplified.

  According to the second aspect of the present invention, the scrapers 104L and 104R are rotatably provided on the scraper arm 102 rotatably supported by the scraper support arm 101 fixed to the vertical movement mechanism 26, and the scrapers 104L and 104R are provided with the base. The scraper body 108 is arranged at a position corresponding to the planting body 25, springs 109L and 109R for biasing the scrapers 104L and 104R are provided in a direction in which the scraper body 108 enters the planting body 25, and the scraper body 108 is planted. Stopper bodies 110L and 110R for restricting entry into the body 25 by contacting the scrapers 104L and 104R are provided in the planting body 25 or the vertical movement mechanism 26, and planting pieces 25F and 25R of the planting body 25 entering the field are provided. Open and transplant the implant, and the implants 25F and 25R are open. When the vertical movement mechanism 26 is moved up to a predetermined position, the scraper 104L comes into contact with the scraper arm 102, and the upward movement of the scrapers 104L and 104R is restricted against the upward movement of the planting body 25 accompanying the upward movement of the vertical movement mechanism 26. The transplanter according to claim 1, wherein the contact body 111 is fixed to the body side.

  Therefore, in addition to the operation of the invention described in claim 1, the invention described in claim 2 is that after the planting body 25 enters the field and the planting pieces 25F and 25R open to transplant the transplant, When the vertical movement mechanism 26 is moved up to a predetermined position with the 25F and 25R being opened, the scraper arm 102 comes into contact with the contact body 111 fixed to the machine body side and the planting body 25 accompanying the upward movement of the vertical movement mechanism 26 is obtained. The upward movement of the scrapers 104L and 104R is restricted with respect to the upward movement.

Further, when the vertical movement mechanism 26 and the planting body 25 are moved upward, the stopper bodies 110L and 110R are also moved upward, so that the scrapers 104L and 104R are moved by the urging forces of the springs 109L and 109R so that the scraper body 108 has the base as a rotation axis. It moves in the direction of entering the planting body 25.
Then, the scraper body 108 of the scrapers 104L and 104R enters the planting pieces 25F and 25R in which the planting body 25 is open, and the soil and foreign matter adhering to the inner wall surface are scraped downward and cleaned by the raising of the planting body 25. .

  Therefore, since the scraper arm 102 is in contact with the contact body 111 fixed to the machine body and the scrapers 104L and 104R are operated, the operation configuration of the scrapers 104L and 104R is simplified, and the operation is also appropriate. Soil and foreign matter adhering to the planted body 25 can be cleaned well.

  In the invention according to claim 3, the left and right planted bodies 25 are mounted on the left and right sides of the vertical movement mechanism 26, respectively, and the scraper device 100 for simultaneously cleaning dirt and foreign matter adhering to the left and right planted bodies 25 is provided between the left and right planted bodies 25. The transplanter according to claim 1 or 2 arranged in the above.

  Therefore, in addition to the operation of the invention described in claim 1 or 2, the invention described in claim 3 attaches the left and right planted bodies 25 to the left and right sides of the vertical movement mechanism 26, and adheres to the left and right planted bodies 25. Since the scraper device 100 that simultaneously cleans the soil and foreign matter is disposed between the left and right planted bodies 25, the scraper device 100 that can simultaneously clean the left and right seedling planted bodies 25 can be configured in a small and simple manner.

  In the invention according to claim 4, the base portions of the left and right scrapers 104L and 104R are rotatably provided on the scraper arm 102, and the left and right scraper bodies 108 respectively provided on the left and right scrapers 104L and 104R correspond to the left and right planted bodies 25, respectively. Left and right springs 109L and 109R are provided to urge the left and right scrapers 104L and 104R in the direction in which the left and right scraper bodies 108 enter the left and right planted bodies 25, respectively. Left and right stopper bodies 110L and 110R for restricting entry into the left and right scrapers 104L and 104R are provided on the left and right planting body 25 or the vertical movement mechanism 26, and the left and right scrapers 104L and 104R, left and right springs 109L and 109R, and Left and right stopper body 110L, 110 Was with each allocation and disposed of claim 3 transplanter on both right and left sides of the vertical movement mechanism 26.

  Therefore, in addition to the operation of the invention described in claim 3, the invention described in claim 4 includes the right and left planted body 25, left and right scrapers 104L and 104R, left and right springs 109L and 109R, and left and right stopper bodies 110L and 110R. Since the left and right planted body 25 and the scraper device 100 are arranged in a balanced manner with respect to the vertical movement mechanism 26, the entire structure can be simplified and reduced in size and can be transplanted well. Can be done.

  The invention according to claim 5 is configured such that the planting pieces 25F and 25R of the left and right planting body 25 open in the front-rear direction with respect to the aircraft traveling direction to transplant the transplant, and are provided on the scraper arm 102 so as to be rotatable. The left and right scrapers 104L and 104R rotate in the left and right direction with respect to the aircraft traveling direction, and the left and right scraper bodies 108 provided at the front ends of the left and right scrapers 104L and 104R respectively enter the left and right planted bodies 25 from the inside. The transplanter according to claim 4.

  Therefore, in the invention described in claim 5, in addition to the operation of the invention described in claim 4, the planting pieces 25F and 25R of the left and right planting body 25 open in the front-rear direction with respect to the traveling direction of the aircraft, and the implant The left and right scrapers 104L and 104R, which are provided on the scraper arm 102 so as to be rotatable, rotate in the left and right directions with respect to the advancing direction of the fuselage, and the left and right scrapers provided at the front ends of the left and right scrapers 104L and 104R. Since the bodies 108 are configured to enter the left and right planted bodies 25 from the inside, the scraper device 100 for cleaning dirt and foreign matters attached to the left and right planted bodies 25 respectively mounted on the left and right sides of the vertical movement mechanism 26 is simplified. Moreover, it can be configured with a good balance between left and right, and the soil and foreign matter adhering to the inside of the left and right planted body 25 can be cleaned well, and an appropriate transplanting operation can be performed.

  In the invention according to claim 6, the rotation of the left and right scrapers 104L, 104R is restricted, and the left and right scraper bodies 108 at the distal ends of the left and right scrapers 104L, 104R are respectively attached to the planting pieces 25F, 25R opened in the left and right seedling planting body 25. 6. The transplanter according to claim 4 or 5, wherein left and right rotation stoppers 112L and 112R that are stopped at the left and right center positions are provided on the scraper arm 102.

  Accordingly, in the invention described in claim 6, in addition to the action of the invention described in claim 4 or 5, the left and right scraper bodies 108 at the tips of the left and right scrapers 104L and 104R are opened in the left and right seedling planting bodies 25, respectively. Since the left and right rotation stoppers 112L and 112R for stopping at the left and right center positions of the planting pieces 25F and 25R are provided on the scraper arm 102, the left and right scraper bodies 108 are opened to the right and left seedling planting bodies 25 accurately with a simple configuration. The planting pieces 25F and 25R can be stopped at the left and right center positions, and the soil and foreign matter adhering to the planting body 25 can be cleaned well.

  Therefore, the transplanter of the present invention can provide a transplanter equipped with a scraper that has a simple configuration and appropriately and satisfactorily removes mud adhering to the inside of the planted body, and appropriately solves the problems of the invention. Can do.

It is a side view of a seedling transplanter. It is a top view of a seedling transplanter. It is a top view of the seedling transplanter of the state which omitted the seedling supply part and the operator's seat. It is a side view which shows a seedling planting apparatus and a seedling supply apparatus. It is a side view for explanation of operation of a seedling planting device and a scraper device. It is a rear view for an operation explanation of a seedling planting device and a scraper device. It is a rear view of the seedling planting device which developed a part of transmission case and disclosed a section. It is a perspective view which shows the connection structure of a seedling container. It is a perspective view which shows the state which installed the container in the container latching member. It is a side view for operation | movement description of a clot removal apparatus. It is a top view for operation | movement description of a clot removal apparatus. It is a back view for operation explanation showing the 2nd example of a clot removal device. It is a side view for action explanation showing the 3rd example of a clot removal device. It is a perspective view for operation explanation showing other examples of a grip part of a steering handle.

One embodiment of the present invention will be described below. The following embodiment is merely an embodiment and does not restrict the scope of the claims.
A transplanter for transplanting onion seedlings will be described as an example of a transplanter. In the following description, the side on which the steering handle 2 is disposed is the rear, and the opposite side, that is, the side on which the engine 5 is disposed is the front. Then, the right hand side of the worker standing toward the front side of the machine body at the rear part of the machine body is set to the right, and the left hand side is set to the left.

  The transplanter of this example includes a traveling vehicle body 1 that allows the vehicle to travel forward, a steering handle 2 for walking operation provided at a rear portion of the traveling vehicle body 1, a seedling planting device 3 for planting seedlings in a farm field, It is set as the structure provided with the seedling supply apparatus 4 which supplies this seedling planting apparatus 3 with a seedling.

  In the illustrated example, the traveling vehicle body 1 rolls forward in front of the engine 5, rear wheels 6 and 6 that are a pair of left and right drive wheels that are driven and rotated by transmission of the power of the engine 5, and the rear wheels 6 and 6. A pair of left and right front wheels 7, 7 that are freely supported are provided.

  A mission case 8 is disposed at the rear of the engine 5, and the mission case 8 has a case portion extending from the left side of the engine 5 to the left side of the engine 5, and this is connected to the left side of the engine 5. The output shaft of the engine 5 enters the case portion and the power is transmitted to the transmission mechanism in the transmission case 8. On the left and right sides of the transmission case 8, the front portions of the transmission cases 9, 9 that are long in the front-rear direction are rotatably attached. Specifically, axle cases 9a and 9a provided so as to be rotatable integrally with the transmission cases 9 and 9 are provided on the inner side of the front body of the traveling transmission cases 9 and 9, and the axle cases 9a and 9a are provided. The transmission case 9, 9 is attached to the left and right sides of the mission case 8 so as to be rotatable. The rear wheels 6 and 6 are mounted on the axles 10 and 10 that protrude toward the rear side of the traveling transmission cases 9 and 9. The tip of the wheel drive shaft extended from the transmission case 8 to the left and right outwards enters the rotational axis X position of the front part of the transmission cases 9, 9. The traveling power passing through the section is transmitted to the transmission mechanism in the transmission cases 9 and 9. The traveling power is transmitted to the axles 10 and 10 on the rear end side of the transmission cases 9 and 9 via the transmission mechanism in the transmission cases 9 and 9, and the rear wheels 6 and 6 are driven to rotate. ing. The axle cases 9a, 9a are provided so as to be adjustable in the left and right directions corresponding to the width of the flange U. Further, in order to support the axle cases 9a and 9a, the support frames 9b and 9b are fixed to the transmission case 8 in a state of being substantially parallel to the axle cases 9a and 9a, and are attached to the outer ends of the support frames 9b and 9b. The outer portions of the axle cases 9a, 9a are rotatably supported by the fixed support plates 9c, 9c.

  The traveling transmission cases 9 and 9 are connected to driving means for rotating up and down so that the rear wheels 6 and 6 are moved up and down using the front side of the transmission cases 9 and 9 as a rotation fulcrum. Specifically, the upper and lower arms 11, 11 are integrally attached to the attachment portions of the transmission cases 9, 9 to the transmission case 8, and the lifting hydraulic cylinder 12 is fixed to the transmission case 8. It is connected to the left and right sides of the connecting body 13 attached to the tip of the piston rod. The left and right sides (right side) are connected by a rod 14, and the other side (left side) is connected by a left / right horizontal control hydraulic cylinder 15 that can be expanded and contracted according to the inclination of the airframe.

  When the lifting / lowering hydraulic cylinder 12 is actuated and the piston rod projects rearward, the left and right arms 11 and 11 are rotated rearward, and accordingly the transmission cases 9 and 9 are rotated downward, and the airframe. Rises. On the other hand, when the piston rod of the lifting hydraulic cylinder 12 moves forward and retracts into the cylinder, the left and right arms 11 and 11 rotate forward, and the transmission cases 9 and 9 rotate upward accordingly. The aircraft moves down. The lifting hydraulic cylinder 12 is actuated by a sensor S that contacts the upper surface of the kite U and operates in accordance with a change in the vertical distance between the airframe and the upper surface of the kite U. The operation of the sensor S is an operation for detecting the height of the upper surface of the kite U relative to the fuselage. Based on the detection operation of the sensor S, the hydraulic cylinder 12 for raising and lowering the aircraft is set to a set height with respect to the height of the upper surface of the kite U. Is configured to operate. Further, the lifting hydraulic cylinder 12 is operated so as to raise or lower the airframe by human operation of the operating tool L arranged in the vicinity of the steering handle 2.

  Further, when the left / right horizontal control hydraulic cylinder 15 is extended and contracted, the left arm 11 connected to the left / right horizontal control hydraulic cylinder 15 is rotated to make the left rear wheel 6 and the right rear wheel 6 different from each other. Raise the aircraft to the left and right. The left / right horizontal control hydraulic cylinder 15 is configured to operate so that the airframe is horizontally horizontal based on a detection result of a sensor that detects the right / left inclination of the airframe relative to the left / right horizontal.

  The left and right front wheels 7 and 7 are provided with vertically long vertical frames 16a and 16a on left and right side portions of a horizontal frame 16 which is rotatably mounted around an axial center in the front-rear direction at a left and right central position below the engine 5, It is rotatably attached to axles 17 and 17 fixed to the side of the lower end. Accordingly, the left and right front wheels 7 and 7 are capable of rolling around the axial center Y in the front-rear direction at the center of the left and right of the aircraft. Vertical frames 16a and 16a are provided on the left and right sides of the horizontal frame 16 so as to be vertically adjustable so that the height of the front wheels 7 and 7 can be adjusted.

  The steering handle 2 is provided at the rear of the fuselage, and is located behind the axles 10 and 10 of the rear wheels 6 and 6. Specifically, it is attached to the rear end portion of the body frame 2b with the front end portion fixed to the mission case 8. The airframe frame 2b is disposed at a position deviated from the right and left center of the airframe to the right side and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends rearward from the rear end portion of the body frame 2b to the left and right, and the rear end portions thereof serve as grip portions 2a and 2a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion.

  In the traveling vehicle body 1, the traveling drive unit that is grounded and rotated is configured as a four-wheel traveling drive unit including front and rear wheels, but is configured as a crawler traveling drive unit. You can also

  The seedling planting device 3 has a beak-shaped seedling planting body 25 whose tip is directed downward, and a seedling planting body at a position where the lower end of the seedling planting body 25 is above the field scene and a position below the field scene. A vertical movement mechanism 26 that moves the 25 up and down; a closed state in which the lower end portion of the beak-like seedling planting body 25 is closed and a seedling is received from above and a seedling can be accommodated inside; An open / close mechanism 27 that opens and closes the seedling planting body 25 in an open state in which the seedling that is opened and accommodated inside can be released downward, and the seedling supply device 4 receives a seedling from above and accommodates the seedling inside. The seedling container 29, the moving mechanism 30 that moves the seedling container 29 so as to pass above the seedling planting body 25, and the bottom of the seedling container 29 is opened above the seedling planting body 25. Seedling planting body 2 by dropping seedlings housed inside Comprising a seedling supply device 4 provided with a release mechanism 31 for supplying seedlings.

The seedling planting apparatus 3 has a four-row planting configuration in which four seedling planting bodies 25 are arranged side by side at set intervals.
The four seedling planting bodies 25 are mounted on the left and right vertical movement mechanisms 26, 26 provided on the left and right sides of the transmission case 28 mounted on the upper part of the mounting member 32 whose lower part is fixed to the body frame 2b. ing. The rear ends of the left and right arm portions 25Fa, 25Fa ... extending rearward at the upper part of the front seedling planting piece 25F ... of the beak-like seedling planting body 25 ... whose tip is directed downwards are rear seedling planting piece support shafts 34. Are attached to the front seedling planting piece support shaft 33 so that the front ends of the left and right arm portions 25Ra, 25Ra,... In the front and rear intermediate portions of the arm portions 25Fa, 25Fa ... of the piece 25F ... and the arm portions 25Ra, 25Ra ... of the rear seedling planting piece 25R ..., the lateral pins 25a, 25a ... provided on the one arm portion are connected to the other side. .. Are engaged in the left and right elongated holes 25b, 25b... Provided in the side arm portion. The left and right ends of the front and rear seedling planting piece support shafts 33 and 34 are connected by connecting members 35 and 35. The left and right intermediate portions of the front and rear seedling planting piece support shafts 33 and 34 are connected to a cylindrical seedling guide 37 that guides the seedling into the seedling planting body 25 via seedling guide connection members 36 and 36, respectively. . Further, the left and right seedling guides 37, 37 are provided with connecting members 38, 38 detachably and integrally attached between the left and right sides, and the left and right seedling guides 37 are connected via the connecting members 38, 38. , 37 are connected to connecting members 39, 39 arranged between the left and right sides. The connecting members 39, 39 connect the tip ends of the upper and lower lift links 40 a, 40 b of the vertical movement mechanism 26 vertically. When the arm portions 25Ra, 25Ra of the rear seedling planting pieces 25R ... rotate upward around the front seedling planting piece support shaft 33, the arms 25Fa, 25Fa of the front seedling planting pieces 25F ... are connected by the pins 25a, 25a. And the front seedling planting piece 25F moves forward by the rotation around the rear seedling planting piece support shaft 34, and the rear seedling planting piece 25R ... By moving around the seedling planting piece support shaft 33, it moves rearward, so that the lower side of the seedling planting bodies 25 ... opens back and forth and opens downward. Moreover, the lower part side of the seedling planting body 25 ... opened back and forth is closed by the reverse operation.

  The seedling guide 37 is a cylindrical body that guides the seedling supplied from the seedling supply device 4 into the seedling planting body 25, and an upper guide 37 a that extends downward from the seedling dropping portion of the seedling supply device 4. Is provided. Thereby, even if the seedling planting body 25 is shifted from the lower part of the seedling dropping part of the seedling feeding device 4, the seedling dropped and supplied from the seedling feeding device 4 can be appropriately fed into the seedling planting body 25. it can.

  The vertical movement mechanisms 26 of the seedling planting bodies 25 are provided on the left and right sides of the transmission case 28. Specifically, the front part is attached to the shaft protruding to the left and right sides of the transmission case 28 fixed to the upper part of the planting part frame 12a that is rotatably attached to the connecting shaft 21 at the rear end part of the lifting link device 2. Upper and lower elevating links 40a and 40b that are mounted so as to be pivotable up and down and have rear portions connected to the seedling planting body 25, a drive shaft 41 that rotates from the side of the transmission case 28, and a drive shaft that rotates. A drive arm 42 attached to one end side of the front end portion 41 so as to rotate integrally therewith, and an interlocking arm 42a rotatably connected to the rotary outer peripheral end portion of the drive arm 42 and the upper lifting link 40a. It is composed. Then, the rear end portions of the upper and lower lifting links 40a, 40b are rotatably attached to a connecting member 39 attached in the vicinity of the left and right intermediate portions of the seedling planting piece support shafts 33, 34, and the upper and lower links The elevating links 40a and 40b, the transmission case 28, and the connecting member 39 are provided so as to form a link mechanism. Accordingly, when the drive arm 42 is driven and rotated by the rotation of the drive shaft 41, the elevating links 40a and 40b move up and down about the two shafts 40aS and 40bS provided on the left and right side portions of the transmission case 28, and the left and right The seedling planting body 25 ... moves up and down. The lower end portion of the seedling planting body 25 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 25 is positioned below the field scene at the descending position.

  Further, in this seedling planting machine, the vertical movement mechanism 26 that lifts and lowers the seedling planting bodies 25... Is driven below the first lifting link 40a and the first lifting link 40a that is driven up and down around the first shaft 40aS. The second elevating link 40b provided so as to be movable up and down around the biaxial axis 40bS, and a connecting member 39 for connecting the first elevating link 40a and the respective leading ends of the second elevating link 40b, and the connecting member 39 and the seedling The planted bodies 25 are connected to move the seedling planted bodies 25 up and down, and the first shaft 40aS is rotated at the tip of the rotating shaft 40aR driven by the power transmitted through the transmission mechanism in the transmission case 28. The shaft is formed in an eccentric state, and is configured to be rotationally driven around the axis of the rotation shaft 40aR as a radius by the rotation of the rotation shaft 40aR, and during the lifting drive of the first lifting link 40a Axis of rotation 0aR is configured to tilt back and forth planting body 25 during its lifting movement by the rotatably driven. And the attitude | position at the time of the raising of the raising / lowering locus | trajectory upper part of the seedling planting body 25 ... is set so that it may become a forward-facing attitude | position with a lower part rearward from an upper part with respect to an upright attitude | position. Moreover, the posture when the seedling planting body 25 is lowered is set to be a backward posture with the lower portion being forward of the upper portion with respect to the upright posture, and the posture is changed from the backward posture to the forward posture at the lower end position. The seedling planting body 25 is set so that the posture when the seedling planting body 25 is ascending is a forward-facing posture in which the lower portion is rearward of the upper portion with respect to the upright posture.

  The opening / closing mechanism 27 of the seedling planting body 25 is provided with a tip portion of an opening / closing arm 25Rb extending rearward at the upper part of the rear seedling planting piece 25R, while the upper lifting link is provided on the upper side. An operating arm 44 pivotally attached to a shaft pivotally attached to the base of 40a is provided, and the distal end of the operating arm 44 is connected by a connecting rod 45 whose length can be adjusted. During the drive rotation of the drive shaft 41, the cam 46 attached so as to rotate integrally with the drive shaft 41 receives the action of the cam 46 so as to move upward with respect to the seedling planting body 25 at a set timing. . As a result, when the drive shaft 41 is driven to rotate and the seedling planting bodies 25 move up and down, the operating arm 44 also rotates up and down together with the seedling planting bodies 25 and reaches the lower end position of the seedling planting body 25. The operating arm 44 is moved upward with respect to the seedling planting body 25 by the change of the operation position of the cam 46, whereby the rear seedling planting piece 25R is rotated around the front seedling planting piece support shaft 33. Further, the front seedling planting piece 25F is rotated around the rear seedling planting piece support shaft 34 and moved forward in conjunction with this, and the lower side of the seedling planting body 25 is moved back and forth. Open and open downward. Then, the seedling planting body 25... Rises and the operating arm 44 moves downward to the original position with respect to the seedling planting body 25. The lower side closes.

On the other hand, a scraper device 100 is provided between the left and right seedling planting bodies 25 and 25 respectively mounted on the left and right vertical movement mechanism 26.
Here, the detailed configuration and operation of the scraper device 100 will be described.

  An upper end portion of the scraper support arm 101 is fixed to an elevating link 40a on the lower side of the vertical movement mechanism 26 and is provided to extend downward. At the lower end of the scraper support arm 101, a base portion of the scraper arm 102 is rotatably supported by a rotation support shaft 103 and extends rearward.

  The rear end portion of the scraper arm 102 is located between the left and right seedling planting bodies 25 and 25, and the bases of the left and right scraper 104L and 104R for cleaning soil and foreign matter in the left and right seedling planting bodies 25 and 25, respectively. The shaft is pivotally supported. The left and right scrapers 104L and 104R are mounted on the rear end of the scraper arm 102. First, a washer 105 is inserted into a mounting portion 102a formed with a small diameter at the rear end of the scraper arm 102, and the left and right scrapers 104L, After the 104R base is inserted, the stopper washer 106 is inserted to prevent the split pin 107 from coming off.

Rubber plates 108 and 108, which are diamond-shaped scraper bodies that are elastic bodies, are fixed to the front ends of the left and right scrapers 104L and 104R, respectively.
Further, left and right tension springs 109L and 109R are provided between the left and right scrapers 104L and 104R and the left and right seedling planting bodies 25 and 25, and the left and right scrapers 104L and 104R have a base portion as a rotation axis and a distal end side. The urging direction (ie, the direction in which the rubber plates 108 and 108 at the front end enter the left and right seedling planting bodies 25 and 25) is urged. The left and right tension springs 109L and 109R are arranged in parallel between the vertical movement mechanism 26 and the left and right seedling planting bodies 25 and 25.

  The left and right scraper 104L, 104R, whose rubber plates 108, 108 are urged by the left and right tension springs 109L, 109R into the left and right seedling planting bodies 25, 25, respectively, is located inside the left and right seedling planting bodies 25, 25. The left and right stopper bodies 110L and 110R extending downward are in contact with the lower ends of the right and left stopper bodies 110L and 110R, respectively, and are regulated so as to be positioned between the left and right seedling planting bodies 25 and 25 as shown in FIG.

  On the other hand, the upper part of the contact body 111 extended downward is fixed to the transmission case 28. Then, after the left and right seedling planting bodies 25 and 25 have entered the cocoon U and the front seedling planting pieces 25F and the rear seedling planting pieces 25R are opened to plant the onion seedlings, the front seedling planting pieces 25F and the rear side The seedling planting piece 25R is lifted while being opened, and the scraper arm 102 comes into contact with the lower end of the contact body 111 at a midway position of the ascending process, so that the first lifting link 40a and the second lifting link 40b of the vertical movement mechanism 26 are rotated upward. The left and right seedling planting bodies 25, 25 continue to rise by the movement, but the scraper arm 102 stops rising.

  Therefore, the left and right stopper bodies 110L and 110R are lifted together with the left and right seedling planting bodies 25 and 25, so that the left and right scrapers 104L and 104R are in the direction in which the distal end side spreads with the base portion as the rotation axis (that is, the rubber plates 108 and 108 at the distal ends). Are rotated by the urging forces of the left and right tension springs 109L and 109R in the direction of entering the left and right seedling planting bodies 25 and 25, respectively. Then, the rubber plates 108 and 108 at the tips of the left and right scrapers 104L and 104R enter the front seedling planting piece 25F and the rear seedling planting piece 25R, which are opened by the left and right seedling planting bodies 25 and 25, respectively. The soil and foreign matter adhering to the inner wall surface are scraped downward and cleaned. 112L and 112R are left and right rotation stoppers for stopping the left and right scrapers 104L and 104R from rotating in the opening direction provided on the scraper arm 102. The rubber plates 108 and 108 at the tips of the left and right scrapers 104L and 104R are respectively left and right seedlings. The front seedling planting piece 25F and the rear seedling planting piece 25R in which the planting bodies 25 and 25 are open are provided at positions where rotation stops at the left and right center positions.

  When the rubber plates 108 and 108 at the tips of the left and right scraper plants 104L and 104R come out of the lower ends of the left and right seedling planting bodies 25 and 25 due to the rising of the left and right seedling planting bodies 25 and 25, the front seedlings of the left and right seedling planting bodies 25 and 25, respectively. The planting piece 25F and the rear seedling planting piece 25R are closed, and the onion seedling is supplied from the seedling supply device 4 at the highest position of the left and right seedling planting bodies 25, 25. Thereafter, the left and right seedling planting bodies 25 and 25 are lowered, but the sides facing the outer surfaces of the left and right seedling planting bodies 25 and 25 in a state where the front seedling planting piece 25F and the rear seedling planting piece 25R are closed are the left and right Each of the outer side surfaces of the left and right seedling planting bodies 25 and 25 is lowered while coming into contact with the rubber plates 108 and 108 at the tips of the left and right scrapers 104L and 104R rotating in the spreading direction by the tension springs 109L and 109R. Soil and foreign matter adhering to the opposite side are scraped downward and cleaned.

  Then, when the left and right seedling planting bodies 25 and 25 are further lowered, the scraper arm 102 is separated from the lower end of the contact body 111 and returns to the state shown in FIG. 6 by the urging force of the left and right tension springs 109L and 109R. Then, the left and right seedling planting bodies 25 and 25 are further lowered to enter the upper surface of the cocoon U to plant onion seedlings.

  As described above, the scraper device 100 is provided in the left and right vertical movement mechanism 26 that moves the left and right seedling planting bodies 25 and 25 up and down so that the left and right seedling planting bodies 25 and 25 are cleaned. The positional relationship of the scraper device 100 is not shifted (always the appropriate positional relationship is maintained), and the scraper device 100 can properly clean the soil and foreign matter adhering to the left and right seedling planting bodies 25, 25. In addition, since the scraper device 100 is provided in the left / right vertical movement mechanism 26 that moves the left and right seedling planting bodies 25 and 25 up and down, the configuration and operation are simplified. Since 25 and 25 can be cleaned simultaneously, efficiency is also good.

  Between the attachment member 32 for attaching the transmission case 28 to the body frame 2b, and the support frames 9b and 9b for supporting the axle cases 9a and 9a provided between the transmission case 8 and the transmission transmission cases 9 and 9, The support frames 32 a and 32 a are connected to improve the support strength of the transmission case 28, the seedling planting device 3, and the seedling supply device 4.

  Piston rods 91a and 91a of plunger pumps 91 and 91 for supplying water for irrigation supplied to the inside of the seedling planting body 25 are mounted. Plunger pumps 91 and 91 for supplying water for irrigation to be supplied to the inside of the seedling planting body 25... Are mounted inside the transmission case 28 having a gate shape when viewed in the front-rear direction. The piston rods 91a, 91a of the plunger pumps 91, 91 are mounted on the projecting rotary shafts 40aR, 40aR, and the casing members 91b, 91b of the plunger pumps 91, 91 are mounted on the mounting member 32 having the transmission case 28 mounted thereon. It is attached to the plunger pump attachment part provided in T is a tank for storing water for irrigation.

  The seedling supply device 4 has a plurality of seedlings that have a cylindrical body 47 that opens up and down and a bottom lid 48 that opens and closes a lower opening 47a of the cylindrical body 47 that are connected in a loop. And a moving mechanism 30 for rotating the seedling container 29 around a long oval loop trajectory before and after the plane of the machine body in a state of passing through the vicinity of the upper part of the seedling planting body 25. It is the structure which provided the open | release mechanism 31 which open | releases the bottom cover 48 ... of the said seedling container 29 ... in the upper position of the seedling planting body 25 ....

  The seedling supply device 4 forms a cylindrical outer peripheral portion on the outer periphery of the seedling container 29, and has an engagement portion (round hole) that engages with the cylindrical outer peripheral portion so as to be freely rotatable from the outside. A plurality of connecting bodies 49 for connecting the accommodating bodies 29, 29 are provided, and the engaging portions of the connecting bodies 49 are rotatably engaged with the cylindrical outer peripheral portion of the seedling containing bodies 29, so that the cylindrical outer peripheral portion is rotated. As a state where adjacent seedling containers 29 are rotatably connected, a plurality of seedling containers 29 are connected to each other. That is, it is the structure which connected with the seedling container 29 ... and the connection body 49 ... like an endless chain. Accordingly, in this transplanter, the seedling containers 29 are not changed in distance from the seedling containers 29 that are adjacent to each other even if they are linearly moved or arcuately moved. The seedling container 29 is less likely to be displaced with respect to the seedling planting body 25 at the location where the seedling is supplied to the planting body 25, so that the seedling is properly supplied and the seedling can be transplanted accurately. After setting the number of seedling containers 45 and the range of circumferential rotation, the upper opening 43b of the seedling container can be formed as wide as possible, and the size of the machine body can be reduced, and the seedling containers 29 can be made compact. The seedling supply operation can be performed as easily as possible.

  The moving mechanism 30 of the seedling supply device 4 includes sprockets 50, 50; 50 in which the right and left seedling supply devices 4R, 4L are respectively provided with seedling containers 29 ...; 29 ... connected to each other like an endless chain. , 50 is engaged with and wound around an arc-shaped cutout on the outer periphery, and the right and left seedlings are supplied by rotating the left and right sprockets 50, 50; 50, 50 with the power extracted from the transmission case 28. Each seedling container 29 ...; 29 ... of apparatus 4R, 4L is set as the structure rotated around. Rotating shafts 51, 51; 51, 51 for attaching the sprockets 50, 50; 50, 50 so as to be driven to rotate are rotatably attached to a support frame 52 supported by the upper part of the transmission case 28, and from above the transmission case 28. The left and right rotating shafts 53a and 53b projecting upward are transmitted to the respective rotating shafts 51 and 51; 51 and 51 through sprockets and chains.

  The front and rear shafts 51, 51; 51, 51 around which the seedling containing bodies 29 circulate are located behind the left and right rear wheels 6, 6, and the front shafts 51, 51 around which the seedling containing bodies 29 ... The rear shafts 51 and 51 around which the seedling containing bodies 29 circulate are arranged on the front side of the axles 10 and 10 positions of the wheels 6 and 6 and on the rear side of the axles 10 and 10 positions of the rear wheels 6 and 6. The seedling planting body 25 is arranged on the rear side of the axles 10 and 10 positions of the rear wheels 6 and 6.

  The transmission mechanism in the transmission case 28 rotates from the first bevel gear 54 attached to the input shaft 13 connected to the rear end of the transmission shaft 28a that is rotated by transmission from the transmission case 8 to the transmission shaft 55 extending in the left-right direction. The transmission shaft 55 is transmitted to a transmission shaft 55 via a planting clutch C, which is a fixed position stop clutch having a clutch pawl provided at one end of the second bevel gear and a clutch pawl that is detachable. Be transmitted. The planting clutch C is operated by an operator sitting on the operator seats 70L and 70R operating a lever provided below the seedling supply device 4, and the seedling planting device 3 is driven by turning the clutch C on and off. It is cut off. First sprockets 57 and 57 are attached to both left and right ends of the transmission shaft 55 so as to rotate together. The first sprockets 57 and 57 are provided on the lower side in the case extending downward from the left and right ends of the transmission case 28. The second sprockets 58 and 58 are transmitted via the chains 59 and 59. Further, the left and right end portions of the transmission shaft 55 further extend from the first sprockets 57 and 57 and project to the left and right outer sides of the transmission case 28. The protruding portions are drive shafts 41 and 41. The rotary shaft 40aR that rotates integrally with the second sprockets 58, 58 also protrudes from the left and right outer sides of the transmission case 28, and further, a first shaft 40aS that is a pivotal support shaft of the first lifting link 40a in an eccentric state is formed at the tip. And rotate integrally with the rotary shaft 40aR. Further, the third bevel gear 60 is attached to the middle portion of the transmission shaft 55 so as to rotate integrally, and the one rotation shaft 53a that protrudes upward from the upper portion of the transmission case 28 is driven via the fourth bevel gear 61 that meshes with the third bevel gear 60. Rotate. The rotation shaft 53b on the other side is reversely rotated by the gear 62 provided on the rotation shaft 53b meshing with the gear 63 provided on the rotation shaft 53a on the one side. From the left and right rotating shafts 53a, 53b to the left and right rear rotating shafts 51, 51 rotatably supported on the left and right sides of the laterally extending support frame 54b supported by the support member 54a attached to the transmission case 28. Are transmitted through the sprockets 65a and 65a and 65b and 65b and the chains 65c and 65c, respectively, and further sprockets 66a and 66a; 66b and 66b and chains 66c and 66c from the left and right front rotating shafts 51 and 51, respectively. It is set as the structure transmitted via.

  The opening mechanism 31 of the seedling supply device 4 is provided with a support 67 that supports the bottom cover 48 from below so that the bottom cover 48 does not rotate downward below the orbit of the seedling container 29. 67 is not provided above the seedling planting bodies 25... So that the bottom lid 48 is unsupported by the support 67 when the seedling container 29 passes above the seedling planting bodies 25. Accordingly, the seedling container 29 is rotated downward to open the seedling so that the seedling can be dropped downward. The timing at which the bottom lid 48 of the seedling container 29 opens is adjusted so that the seedling planting bodies 25... Rise up to just below the seedling container 29. Moreover, it replaces with the said structure, and when the seedling planting body 25 raises to just under a seedling container, the open | release operating member provided in the seedling planting body 25 is the bottom of the seedling container which is located above the seedling planting body 25 It is also possible to adopt a configuration in which the restriction means for restricting the opening of the lid is operated to release the restriction.

  The seedling supply device 4 of this example includes a right seedling supply device 4R that supplies seedlings to the two seedling planting bodies 25, 25 on the right side of the machine body, and a seedling for the two seedling planting bodies 25, 25 on the left side of the machine body. Both the left seedling supply devices 4L to supply are configured so that the seedling containers 29... Rotate around the two seedling planting bodies 25 and 25 to supply seedlings. In this way, when the seedling container 29... Moves around the two seedling planting bodies 25, 25 to supply seedlings, the seedling container is supplied to the seedling planting body 25 on one side. A seedling container 29 that is connected so as to alternate between the body 29 and the seedling planting body 25 that is supplied to the other seedling planting body 25 and that is supplied to the seedling planting body 25 that is supplied to the other side. When passing above the seedling planting body 25 on one side, the seedling container 29 to be supplied to fall on the seedling planting body 25 on the other side is set to pass above the seedling planting body 25 on the other side, At least the seedling containers 29 to be supplied to the seedling planting body 25 on the lower side in the circumferential movement direction of the seedling containers 29... Pass above the seedling planting body 25 on the upper side in the circumferential movement direction of the seedling containers 29. When the seedling container 29 is not opened Providing a Unisuru opening regulation means. In addition to the above, if it is configured so that the seedling receiving bodies 29... Move two times while the vertical movement of the seedling planting bodies 25, 25 operates for one cycle, the seedling receiving bodies 29. The seedlings can be supplied simultaneously to the two seedling planting bodies 25 and 25 without passing through the seedlings while passing in series above the two seedling planting bodies 25 and 25, and the two seedling planting bodies 25 and 25 The seedling container 29, which has not been supplied with seedlings after passing above, can be supplied with seedlings to the two seedling planting bodies 25, 25 without leaving the seedlings, and the seedling supply operation can be performed with a margin, And a seedling can be reliably supplied with respect to the two seedling planting bodies 25 and 25. The opening restricting means is provided, for example, with a projection on the lid of the seedling container that drops and supplies the seedling planting body 25 on the lower side in the circumferential movement direction of the seedling container, and this projection is superior in the circumferential movement direction of the seedling container. When passing above the seedling planting body 25 on the side, it is possible to support the seedling planting body 25 from below.

  This seedling planting machine is provided with a soil covering pressure reducing wheel 80 for covering and suppressing the seedlings planted by the seedling planting bodies 25 at positions near the rear left and right sides of the seedling planting locations of the seedling planting bodies 25. . In addition, a pressure-reducing roller 81 that suppresses the field scene before the seedling planting bodies 25 plant the seedlings is provided near each front position of the seedling planting location of each seedling planting body 25. These covering soil pressure-reducing wheels 80 and pressure-reducing rollers 81 are supported by a support shaft 82 supported by the body frame 2b to simplify the support structure.

  The seedling planting machine of this example is provided with worker seats 70L and 70R on which an operator sits so that an operator who supplies seedlings to the seedling supply device 4 can get on and perform seedling supply operations. Specifically, the left worker's seat 70L is disposed near the left outer side of the front side portion of the left seedling supply device 4L, and the right worker's seat 70R is disposed near the right outer side of the front side portion of the right seedling supply device 4R. It is arranged. The backrests of these seats 70L and 70R are provided so as to be positioned on the outer sides in the left-right direction of the body, and the operator sitting on the seats 70L and 70R faces the front side of the seedling supply devices 4L and 4R. Sit in a facing posture and perform seedling replenishment work on the front sides of the seedling supply devices 4L and 4R. In addition, the seedling transplanter of this example is standing in front of the steering handle 2 provided on the rear side of the body behind the rear wheels 6 and 6 traveling in the groove between the ridges U while an operator stands and walks forward. A working space W that enables the operation of replenishing seedlings is formed on the rear side of the seedling supply device 4. An operator standing in the work space W forms seedlings with respect to the rear side portions of the seedling supply devices 4L and 4R. Replenishment work can be performed.

  The left and right worker seats 70L and 70R are disposed rearward of the positions of the axles 17 and 17 of the front wheels 7 and 7 and in front of the positions of the axles 10 and 10 of the rear wheels 6 and 6. Further, the operator seats 70L and 70R are arranged so that a part of the seat overlaps above the rear wheels 6 and 6 in a side view of the body. Further, the operator seats 70L and 70R are arranged above the rotation axis X of the traveling transmission case 9, 9 in a side view of the body, and the front wheels 7, 7 are connected to the traveling transmission case 9, It is set as the structure arrange | positioned ahead of 9 rotation axis X.

  The support structure of the worker seats 70L and 70R is such that the axles 10 and 10 of the rear wheels 6 and 6 are protruded inside the transmission cases 9 and 9 which are support members for supporting the axles 10 and 10 of the rear wheels 6 and 6. Even if the axles 10 and 10 of the rear wheels 6 and 6 move up and down on the seat support members 72, 72; , 70R is provided with a posture maintaining mechanism that prevents it from tilting back and forth.

In this example, the posture maintaining mechanism is configured as follows. First, seat support frames 72 and 72 with worker seats 70L and 70R attached to the upper part are provided, and the vertical frames 16a and 16a, which are support members for supporting the axles 17 and 17 of the front wheels 7 and 7, Long connecting frames 73 and 73 are provided before and after connecting the axles 10 and 10 of the wheels 6 and 6. The front end portions of the connecting frames 73 and 73 are fixed to support cylinders 74 and 74 that are rotatable on pins protruded from and fixed to the inner sides of the vertical frames 16a and 16a that support the axles 17 and 17 of the front wheels 7 and 7, respectively. It is inserted slidable in the front-rear direction. Further, the rear end side of the connecting frames 73 and 73 is integrally fixed to cylindrical portions 75 and 75 that are rotatably attached to the axles 10 and 10 of the rear wheels 6 and 6. Therefore, even if the traveling transmission cases 9 and 9 are moved downward and the axles 10 and 10 of the rear wheels 6 and 6 are moved up and down, the connecting frames 73 and 73 are not tilted back and forth. Around the middle point of the connecting frame 73, it is attached only to the lower portion of the seat support frame 72, 72. Therefore, even if the traveling transmission cases 9 and 9 rotate and the axles 10 and 10 of the rear wheels 6 and 6 move up and down, the operator seats 70L and 70R do not tilt forward and backward. In addition, the seat support frames 72, 72 are rotated around the vertical axis with respect to the connection frames 73, 73, so that the operator seats 70L, 70R can be moved inside the machine body. The operator seats 70L and 70R can be stored inside the fuselage during movement or storage.

  The support cylinders 74 and 74 mounted on the front end side of the connecting frames 73 and 73 can be attached to the axles 17 and 17 of the front wheels 7 and 7. Further, the connecting frames 73 and 73 have rear end portions that are rotatable about shafts that protrude inside the traveling transmission cases 9 and 9 that are support members for supporting the axles 10 and 10 of the rear wheels 6 and 6. The cylindrical portions 75 and 75 can also be rotatably attached. Further, the connecting portions on the front wheels 7 and 7 side of the connecting frames 73 and 73 connect the connecting frames 73 and 73 to the front axles 17 and 17 or the vertical frames 16a and 16a in a non-slidable and rotatable manner. The connecting portions on the rear wheels 6 and 6 side of the connecting frames 73 and 73 connect the connecting frames 73 and 73 to the rear wheel axles 10 and 10 or the transmission cases 9 and 9 so as to be slidable and rotatable. It can also be configured. With this configuration, when the traveling transmission cases 9 and 9 rotate downward and the axles 10 and 10 of the rear wheels 6 and 6 descend, the rear wheels 6 and 6 move forward relative to the fuselage. However, the operator seats 70L and 70R do not move in the front-rear direction relative to the aircraft. Accordingly, in order to turn the airframe, the rear wheels 6 and 6 are first lowered to raise the airframe, and when the steering handle 2 is pushed down to bring the two-wheel grounding state and the airframe is turned, the operator seat in the front-rear direction Since 70L and 70R approach toward the axles 10 and 10 of the rear wheels 6 and 6, the load of pushing down the steering handle 2 due to the weight of the operator seats 70L and 70R is reduced. Further, both of the connecting portions on the front wheels 7 and 7 side of the connecting frames 73 and 73 and the connecting portions on the rear wheels 6 and 6 side of the connecting frames 73 and 73 are capable of sliding and rotating the connecting frames 73 and 73. It can also be set as the structure connected to.

  Furthermore, this seedling transplanter is provided with steps 71L and 71R at the lower left and right inner sides of the left and right worker seats 70L and 70R. The steps 71L and 71R extend from the position below the worker seats 70L and 70R to the position above the front wheels 7 and 7 in a side view of the machine body. The rear wheels 6 and 6 are large-diameter wheels, and the front wheels 7 and 7 are small-diameter wheels, and are provided so that the front portions of the steps 71L and 71R are located above the front wheels 7 and 7 of the small-diameter wheels in a side view of the body. ing. Steps 71L and 71R have step support frames 96 and 96 each having a rear side attached to an upper portion of the axle case 9a and 9a and a front side fixed to the bumper frame 95, and outer ends of the step support frames 96 and 96. It is fixedly mounted on the step support plates 97, 97 which are fixed to the portion and integrated with the support plates 9c, 9c.

  Containers C and C capable of storing seedlings to be supplied to the seedling supply device 4 can be installed in the vicinity of the rear sides of the worker seats 70L and 70R and above the axles 10 and 10 of the rear wheels 6 and 6 in a side view of the body. Provided. In this example, container engagement members 94 and 94 are provided which engage with one side of handle holes C1 and C1 formed on both sides of a box-like container C formed of plastic or the like and support the container C. Thus, the containers C and C can be installed, the structure of the container support portion is simplified, and the container support portion does not occupy a large space when the container is not installed. , Weight reduction, and cost reduction. In the specific configuration of the illustrated example, the upper end portions of the container engaging members 94, 94 are bent in a crank shape, and the upper end portions are inserted into the handle holes C1 of the container C from the outside, and the handle holes are formed in the crank-shaped bent portions. Container C can be supported by container engaging member 94 by causing C1 to be pulled. Further, the container engaging member 94 is fixed to the upper part of the seat support frames 72, 72, and is provided to stand on the rear side of the worker seats 70L, 70R. When the operator is seated on the operator seats 70L and 70R when traveling on the road, it also serves as a handrail.

  The seedling planting machine of this example is configured so that water for irrigation can be supplied to the seedling planting body 25, so that irrigation can be performed simultaneously with planting of the seedlings. Tanks T, T; T, T for storing water for irrigation are tank support bases provided in the vicinity of the axles 10, 10 of the rear wheels 6, 6 in the left and right inner sides of the rear wheels 6, 6 in the lateral direction of the body. 76, 76 so that it can be placed thereon. The tank support bases 76 and 76 are fixed on support members fixed to the connection frames 73 and 73.

  Further, tanks T placed on the tank support bases 76 and 76 in the position above the axles 10 and 10 of the rear wheels 6 and 6 on the rear side of the body seats 70L and 70R in the side view of the body and in the side view of the body. T; A container C capable of accommodating seedlings to be supplied to the seedling supply device 4 is provided at a position above T and T so as to be installed.

Next, a description will be given of the soil lump removing device 120 that removes the lump and the like scattered on the top surface of the kite U attached to the front of the machine body from the planting position on the top surface of the kite U toward the left and right.
The clod removing device 120 has a V-shape in a plan view with a sharp front end, and an iron clod removing plate 121 having a rear portion connected by a support rod 121a having a circular cross section, and a support for the rear portion of the clod removing plate 121 A cylindrical boss 122a that is externally fitted to the rod 121a and rotatably supports the mass removing plate 121 is provided at the lower part, and a support 122 having an upper end fixed to the bumper frame 95, and a support rod at the rear of the mass removing plate 121 A leveling device 123 for leveling the upper surface of the eaves U, which rotatably supports a cylindrical leveling roller 123b at the rear part of a leveling roller support frame 123a having a front end fixed to 121a and extending backward, and leveling It is comprised by the weight 124 with which the rear end part of the roller support frame 123a was mounted | worn.

  Therefore, when the left and right front wheels 7 and 7 and the left and right rear wheels 6 and 6 straddle the heel U and lower the machine body to the planting position and perform seedling transplanting work, the leveling roller 123b of the leveling device 123 is Since it is in contact with the U upper surface, the lower surface of the soil mass removing plate 121 of the soil mass removing device 120 is also in contact with the upper surface of the ridge U. Therefore, as the aircraft moves, the lump removing plate 121 of the lump removing device 120 removes the lump scattered on the top surface of the hail U to the left and right of the hull moving direction. The leveling roller 123b keeps leveling, and the sensor S at the rear of the leveling roller 123b touches the leveling surface of the kite U that is leveled to detect the fluctuation of the vertical distance between the machine body and the leveling surface of the kite U appropriately. Since the lifting hydraulic cylinder 12 controls the operation and the aircraft is always maintained at a predetermined height with respect to the upper surface of the cocoon U, the seedling planting bodies 25 can appropriately transplant seedlings to the heel U at a predetermined planting depth. .

  On the other hand, when the aircraft is raised by lowering the left and right rear wheels 6 and 6 in order to turn the aircraft at the end of the heel U, the soil mass removing device 120 is supported by the weight of the weight 124 and the leveling roller 123b. With the rod 121a as a pivot axis, the rod 121a is supported by the boss 122a of the support body 122 fixed to the bumper frame 95 and rotates in the direction in which the front moves upward. Therefore, the operator pushes down the grips 2a, 2a of the steering handle 2 at the rear of the aircraft and moves the aircraft in a state where the aircraft front is moved upward with the grounding point of the left and right rear wheels 6, 6 as a pivotal fulcrum. At that time, since the earth lump removing plate 121 of the earth lump removing device 120 is in the upward movement state as described above, the earth lump removing plate 121 comes into contact with the upper surface of the eaves U and removes the eaves U. The turning work can be performed with good workability while avoiding the situation of breaking.

FIG. 12 is a rear view for explaining the operation of the second embodiment of the soil lump removing device 120.
The clod removing device 120 is arranged at the front of the aircraft in the same manner as the above example, and a square clod removing device support frame 130 is fixed to the bumper frame 95 at the front end of the fuselage by a support 131 to remove the clod. The lower side 130a of the device support frame 130 is formed in a square shape with the center bent upward when viewed from the front, and truncated cone-shaped left and right soil block removing rollers 132L and 132R having a wider cross-sectional area toward the center are rotatably mounted on the lower side 130a. Configured. The left and right soil lump removal rollers 132L and 132R are arranged in a direction orthogonal to the aircraft traveling direction, and the ground contact portion is arranged to be horizontal, so that the left and right soil lump removal rollers 132L and 132R are viewed in plan view. The center of the front end of the front is located in front of the aircraft in the traveling direction, and the rear ends as it reaches the left and right ends.

  Therefore, when the left and right front wheels 7 and 7 and the left and right rear wheels 6 and 6 straddle the heel U and lower the body to the planting position and perform seedling transplanting work, the left and right soil mass removing rollers 132L, The lower surface of 132R is in contact with the upper surface of the flange U. Therefore, when the aircraft advances, the left and right soil removal rollers 132L and 132R of the soil removal device 120 rotate freely to guide and remove the large soil mass to the left and right in the aircraft traveling direction, and at the same time flatten the upper surface of the kite U. The sensor S in the rear part contacts the flat top surface of the kite U and detects the change in the vertical distance between the airframe and the top surface of the kite U to control the lifting hydraulic cylinder 12 to operate. Since the aircraft is always maintained at a predetermined height with respect to the upper surface of the cocoon U, the seedling planting bodies 25 can appropriately transplant seedlings to the cocoon U at a predetermined planting depth.

FIG. 13 is a side view for explaining an action showing a third embodiment in which the soil mass removing device 120 is formed integrally with the sensor S itself.
The earth removing device 120 has a structure in which an iron plate earth removing plate 121 having a sharp front end and a V-shape in plan view is fixed to the front lower surface of the grounding portion Sa of the sensor S as in the first embodiment. The earth lump removing plate 121 is configured to be positioned slightly above the upper surface of the ridge U when the grounding portion Sa of the sensor S contacts the upper surface of the ridge U.

  Therefore, when the left and right front wheels 7 and 7 and the left and right rear wheels 6 and 6 straddle the heel U, the grounding portion Sa of the sensor S is placed on the upper surface of the heel U when the aircraft is lowered to the planting position. Since the contact is made, the lower surface of the soil mass removing plate 121 of the soil mass removing device 120 fixed to the lower surface of the sensor S is also located in the immediate vicinity of the upper surface of the ridge U. Therefore, when the airframe advances, the earth lump removing plate 121 of the earth mass removing device 120 removes the earth lump scattered on the upper surface of the kite U from the left and right of the aircraft traveling direction, and the grounding portion Sa of the sensor S is placed on the upper surface of the kite U that is substantially flat. The vertical movement hydraulic cylinder 12 is controlled by detecting a change in the vertical distance between the aircraft and the upper surface of the kite U, and the aircraft is always maintained at a predetermined height with respect to the upper surface of the kite U. The seedling planting bodies 25 can appropriately transplant seedlings to the heel U at a predetermined planting depth.

FIG. 14 shows another example of the grip portions 2 a and 2 a of the steering handle 2.
The pipe member 2b of the steering handle 2 that supports the grip portions 2a and 2a is formed with grooves 2c and 2c along the longitudinal direction at the top and bottom thereof, and the front ends of the grip portions 2a and 2a are engaged with the grooves 2c and 2c. Upper and lower pins 2d and 2d are provided. The grip portions 2a and 2a are formed into a cylindrical shape with a space formed therein, and are fitted into the pipe material 2b. The upper and lower pins 2d and 2d move in the grooves 2c and 2c, thereby It is configured to be movable in the longitudinal direction of the material 2b. Further, arc portions 2e and 2e that are cut out in an arc shape are formed on the side walls of the grip body 2a and 2a in front of the machine body.

  Therefore, during normal transplantation work, the grip portions 2a and 2a are fitted in the pipe material 2b, and the work is performed with the handle shortened. When the aircraft is raised and the front part of the aircraft is lifted upward when turning the aircraft, when the grips 2a and 2a are pulled backward, the upper and lower pins 2d and 2d move in the grooves 2c and 2c to the rear of the aircraft. Then, the grip portions 2a, 2a are pulled out to the rear of the body, and the handle becomes long. Then, the operator can easily push the grip portions 2a, 2a and raise the front portion of the aircraft with the grounding point of the left and right rear wheels 6, 6 as a pivot, so that the aircraft can be turned with good workability. The Further, when the grip portions 2a, 2a are rotated 90 degrees with the upper and lower pins 2d, 2d pivoting inward in the left-right direction with the grip portions 2a, 2a pulled out to the rear of the machine body, a loop handle or the like It becomes a state, and the steering wheel operation at the time of turning becomes easy.

  As described above, the seedling planting machine 25, 25, 25, and 25 plant seedlings in the field while traveling forward with the pair of left and right front wheels and the pair of left and right rear wheels straddling the ridge U. wear. The seedling supply devices 4L, 4R supply seedlings to the seedling planting bodies 25, 25, 25, 25. The operator can perform an operation of sitting on the operator seats 70L and 70R and supplying seedlings to the seedling supply devices 4L and 4R.

  In addition to onion seedlings, the transplanting machine according to the present invention transplants various kinds of transplanted objects such as various vegetable seedlings, tobacco seedlings, flower seedlings, and other seedlings, potato seeds, raccoon bulbs, and the like. The industrial applicability is high.

5 prime mover 25 planting body (seedling planting body)
25F planting piece (front seedling planting piece)
25R planting piece (back seedling planting piece)
26 Vertical movement mechanism 100 Scraper device 101 Scraper support arm 102 Scraper arm 104L Left scraper 104R Right scraper 108 Scraper body (rubber plate)
109L Left spring (Left tension spring)
109R Right spring (Right tension spring)
110L Left stopper body 110R Right stopper body 111 Contact body 112L Left rotation stopper 112R Right rotation stopper

Claims (6)

  A planting body (25) which is mounted on a vertical movement mechanism (26) driven by a prime mover (5) and moves up and down, enters a farm field, opens an opposing planting piece (25F, 25R), and transplants a transplant. ) Equipped with a scraper device (100) for cleaning soil and foreign matter adhering to the planted body (25) on the vertical movement mechanism (26).   A scraper (104L, 104R) base is rotatably provided on a scraper arm (102) rotatably supported by a scraper support arm (101) fixed to a vertical movement mechanism (26), and the scraper (104L, 104R). The scraper body (108) provided on the spring is disposed at a position corresponding to the planted body (25), and the scraper (108L) biases the scraper (104L, 104R) in a direction in which the scraper body (108) enters the planted body (25). (109L, 109R) and a stopper body (110L, 110R) that contacts the scraper (104L, 104R) and restricts the scraper body (108) from entering the planted body (25). ) Or the vertical movement mechanism (26) and the planting piece (25F, 25R) of the planting body (25) that has entered the field. When the vertical movement mechanism (26) is moved up to a predetermined position while the transplanted piece (25F, 25R) is opened with the graft being opened, the vertical movement mechanism (26) is brought into contact with the scraper arm (102). The contact body (111) for restricting the upward movement of the scraper (104L, 104R) with respect to the upward movement of the planting body (25) accompanying the upward movement of the plant is fixed to the body side. The transplanter according to 1.   A left and right planted body (25) is mounted on each of the left and right planted bodies (25) on the left and right sides of the vertical movement mechanism (26), and a scraper device (100) that simultaneously cleans dirt and foreign matter adhering to the left and right planted body (25). The transplanter according to claim 1 or 2, wherein the transplanter is disposed between the two.   The scraper arm (102) is provided with the bases of the left and right scrapers (104L, 104R) in a rotatable manner, and the left and right scraper bodies (108) provided on the left and right scrapers (104L, 104R) are respectively attached to the left and right planting bodies (25). Left and right springs (109L, 109R) for urging the left and right scrapers (104L, 104R) in directions in which the left and right scraper bodies (108) enter the left and right planted bodies (25) are provided at corresponding positions, and left and right The left and right stopper bodies (110L, 110R) for restricting the scraper bodies (108) from entering the left and right plant bodies (25) by contacting the left and right scrapers (104L, 104R) respectively The left and right scrapers (104L, 104R), left and right springs (109L, 09R) and the left and right stopper member (110L, transplanter according to claim 3, characterized in that arranged respectively distributes 110R) on the left and right sides of the vertical movement mechanism (26).   The left and right planting bodies (25) have a configuration in which each planting piece (25F, 25R) opens in the front-rear direction with respect to the aircraft traveling direction to transplant the graft, and the left and right are provided to the scraper arm (102) so as to be rotatable. The scrapers (104L, 104R) are rotated in the left-right direction with respect to the moving direction of the machine body, and the left and right scraper bodies (108) provided at the front ends of the left and right scrapers (104L, 104R) are respectively placed in the left and right planted bodies (25). The transplanter according to claim 4, wherein the transplanter is configured to enter from the inside.   By restricting the rotation of the left and right scrapers (104L, 104R), the left and right scraper bodies (108) at the tips of the left and right scrapers (104L, 104R) are respectively planted pieces (25F, 25R) opened by the left and right seedling planted bodies (25). The transplanter according to claim 4 or 5, wherein left and right rotation stoppers (112L, 112R) for stopping at a left and right center position are provided on the scraper arm (102).

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