JP4591437B2 - Seedling planting machine - Google Patents

Description

  The present invention relates to a seedling transplanter such as a riding rice transplanter, a riding vegetable transplanter, or a riding rush transplanter.

2. Description of the Related Art Conventionally, in various types of seedling transplanters equipped with a spare seedling stage, there is an apparatus in which an empty box storage unit that stores an empty seedling box is provided separately from the preliminary seedling stage.
JP-A-8-116736

  Then, this invention makes it a subject to obtain a seedling transplanter with good workability with a simple machine structure.

In order to solve the conventional problems, the invention according to claim 1 is provided with a riding type traveling vehicle (1) including left and right steering drive front wheels (6) and left and right drive rear wheels (7), and a link mechanism ( 44) A seedling planting device (46) is provided so as to be freely rollable with respect to the seedling planting device (46), and a seedling mounting support frame (56a) in which upper and lower upper support members (56) are provided at the upper end portion; A seedling stand (57) supported by the lower support member (55) and the left and right upper support members (56) and reciprocating in the left-right direction of the machine body, and seedlings for one stock from the lower end of the seedling stand (57). Seedling planting device (58) that is divided and planted in a field, leveling float (60a, 60b, 60c) with front part swingably mounted, and lower support member (55) are moved up and down to adjust seedling planting Adjusting the amount of seedlings to adjust the amount of seedlings removed by the device (58) The support frame (74) includes a bar (55a) and a planting depth lever for adjusting the planting depth of the seedling by adjusting the vertical position of the pivot (59) of the leveling float (60a, 60b, 60c). A seedling placement frame (75) is fixed to the upper part of the seedling, and the seedling placement frame (75) is equipped with a preliminary seedling placement stand (70) having a frame frame (76) and a seedling box placement portion on which a seedling box can be placed. In the seedling transplanter, a plurality of seedling box mounting portions are provided on the preliminary seedling mounting stand (70) so that a plurality of seedling boxes can be placed, and the plurality of seedling box mounting portions are disposed on the inside of the machine body. The plurality of seedling box mounting portions include a frame frame (76) and a frame body (77) fixed to the frame frame (76 ) . A space (B) is formed inwardly through a plurality of seedling box mounting portions in the vertical direction, and the space (B) is inserted into the seedling box. A configuration capable, provided to fix the receiving member (85) for supporting the seedling box below the該苗box rest portion in seedling box rest portion of the lower, flat the seedling box footrest preliminary seedling mounting base (70) It is comprised by the mounting part (83) and the outer side upper end (77a) of a frame (77), and the outer side upper end (77a) of a frame (77) is an inclined line (C) along the upper surface of a flat plate-shaped mounting part (83). The seedling transplanter was arranged with the alignment marker (90) provided on the frame frame (76) and the alignment marker (90) positioned outside the machine body .

  Therefore, in the seedling planting machine equipped with the preliminary seedling stage 70 having the seedling box mounting part on which the seedling box can be placed, a space part B penetrating vertically in the seedling box mounting part of the preliminary seedling stage 70 is formed. The space B has a configuration in which a seedling box can be inserted, and is a seedling transplanter provided with a receiving member 85 that supports the seedling box below the space B. And a function of storing an empty seedling box.

  Further, a plurality of seedling box mounting portions are provided on the preliminary seedling mounting stand 70 so that a plurality of seedling boxes can be mounted, and a space portion B penetrating vertically is formed in the plurality of seedling box mounting portions. Since the receiving member 85 that supports the seedling box is fixed to the lower seedling box mounting part below the seedling box mounting part, the plurality of seedling box mounting parts are also used for supporting the empty seedling box support structure. And stable storage of empty seedling boxes can be achieved.

  Moreover, since the whole or part of the seedling box mounting portion is configured by a frame and the inside of the frame is the space portion B, a lightweight configuration can be achieved by adopting the frame. However, since the inner space B of the frame itself can also be used as a storage part for an empty seedling box, the configuration is further simplified.

In addition, since the seedling box mounting portion of the preliminary seedling mounting base 70 is configured to be higher on the outside than the inside of the machine body, the movement of the seedling box to the outside of the machine body can be prevented by the inclination of the seedling box mounting part. The latching portion that prevents the seedling box from moving to the outside of the machine body can be eliminated, and when the seedling box is placed on the preliminary seedling placing stand 70 from the outside, the seedling box placing operation is easy and quick. Work efficiency is good. Moreover, the left-right width | variety of the preliminary seedling mounting stand 70 can be made small, and a small and lightweight seedling transplanter can be obtained.
In addition, the seedling box mounting portion of the preliminary seedling mounting base 70 is configured by the flat plate mounting portion 83 and the outer upper end 77a of the frame body 77, and the seedling box mounting portion is configured such that the outer side is higher than the inner side of the machine body. The outer upper end 77a is arranged on an inclined line C along the upper surface of the flat plate-like mounting portion 83, and the outer upper end 77a of the frame 77 is configured to receive the bottom surface of the seedling box. Since it can prevent by the inclination of a mounting part, the latching | locking part which prevents the movement to the outer side of the body of a seedling box can be eliminated, and when placing a seedling box from the outside on the preliminary seedling mounting base 70 The seedling box placement work can be easily and quickly performed, and the work efficiency is good. Moreover, the left-right width | variety of the preliminary seedling mounting stand 70 can be made small, and a small and lightweight seedling transplanter can be obtained. Further, since the alignment marker 90 is provided on the frame frame 76 and the alignment marker 90 is positioned on the outer side of the machine body, the support portion 90a of the alignment marker 90 can be configured with a short configuration, and the horizontal alignment marker can be configured with a simple configuration. Can be configured.

  Hereinafter, a riding type rice transplanter as an embodiment of the present invention shown in the drawings will be described. Reference numeral 1 denotes a passenger-type traveling vehicle, and the airframe is configured by connecting a transmission case 2 disposed at a front portion and left and right rear wheel transmission cases 3 and 3 disposed at a rear portion of the airframe by a frame 4. Left and right front axle cases 5 and 5 are fixed to the left and right side surfaces of the rear portion of the transmission case 2, and left and right steering drive front wheels 6 and 6 are provided below the left and right front axle cases 5 and 5.

  Reference numerals 7 and 7 denote left and right driving rear wheels, which are respectively mounted on the outer sides of the left and right rear wheel transmission cases 3 and 3. An engine 8 is mounted on the upper part of the frame 4, and power is transmitted from the engine 8 to the transmission case 2 at the front of the fuselage, and from the transmission case 2 to the left and right front axle cases 5, 5 via the front wheel differential mechanism. Power is transmitted to the left and right steering drive front wheels 6 and 6 by the transmission shaft, and left and right rear wheel drive shafts 9 and 9 are provided so as to protrude from the rear end wall of the transmission case 2. The driving force is transmitted to 3, and the left and right driving rear wheels 7, 7 are driven and rotated.

  The transmission case 2 incorporates a main transmission mechanism in which the rotational driving force of the engine 8 is changed by the main transmission lever 40 and a front wheel differential mechanism. A vehicle body cover 41 is molded by FRP, and covers an engine cover portion 41a that covers the periphery of the engine 8, a step 30 provided in front of the engine 8 and the left and right sides, and a lower portion of the handle post portion 42a. Part cover 41b, each being fixed on the body. The step 30 is divided into a front step 30a and a rear step 30b at the through-hole portions of a main clutch pedal 53a and left and right brake pedals 53L and 53R, which will be described later. The rear step 30b includes left and right driving rear wheels. A fender portion 30c and a step 30d for getting on and off are formed integrally. The step 30 extends from the left and right sides of the steering handle 42 to the front to constitute the left and right passages A and A.

  Reference numeral 43 denotes a control seat, which is mounted on the upper portion of the engine cover portion 41a. 44 is a link mechanism composed of an upper link and a lower link, the base end of which is pivotally attached to a support frame 45 extending upward from the left and right rear portions of the frame 4, and the rear end is a seedling. It is pivotally attached to a vertical frame 48 provided with a rolling shaft that supports the planting device 46 in a freely rolling manner.

  49 is a hydraulic cylinder device, the base of the cylinder is pivotally attached to the frame 4, and the tip of the piston is pivotally attached to the lower link. The upper surface of the front cover 41b is an operation panel provided with various display devices and meters. The left side of the front cover 41b is provided with the main transmission lever 40 and a manual clutch lever 50 which can be operated from the front or the side of the machine body. The right side of the front cover 41b is operated with a planting clutch and seedling planting. An operation lever 52 for performing an up / down operation of the device 46 is provided. The manual clutch lever 50 is connected to a main clutch pedal 53a, which will be described later, and a brake in the transmission case 2. When operated in the direction B, the main clutch is disengaged and the wheels are braked. The manual clutch lever 50 can be operated by the operator when getting off the aircraft or when the vehicle is loaded on the truck. Therefore, the manual clutch lever 50 can be safely loaded when the aircraft is over the aircraft or loaded on the truck. Further, since the manual clutch lever 50 can be operated even when it is on the aircraft (when the operator is seated on the control seat 43), the manual clutch lever 50 can be operated to stop the aircraft at a moment. .

  53a is a main clutch pedal provided on the left side of the front cover 41b, and 53L and 53R are left and right brake pedals. The seedling planting device 46 includes a planting transmission case 54 that also serves as a frame that is freely mounted on the rolling shaft of the vertical frame 48, and a lower support member 55 and left and right upper support members 56 that are provided in the planting transmission case 54. A seedling stand 57 that is supported by 56 and reciprocates in the left-right direction of the machine, and a seedling that is attached to the rear end of the planting transmission case 54 and divides the seedlings by one stock from the lower end of the seedling stand 57. Four seedling planting devices 58 to be planted on the ground, and three leveling floats which are leveling bodies in which the rear part is pivotally supported by a shaft 59 at the lower part of the planting transmission case 54 and the front part is mounted so as to freely swing up and down. 60a, 60b, 60c, etc.

  The lower support member 55 is provided with a seedling dividing port through which the seedling planting devices 58... Separate seedlings from the lower end of the seedling mount 57 one by one. The left and right upper support members 56 and 56 are provided at upper ends of the left and right seedling support frames 56a and 56a whose bases are fixed to the planting transmission case 54, respectively. The left and right seedling support frames 56a and 56a are arranged between the link mechanism 44 and the left and right driving rear wheels 7 and 7, respectively, in front of the machine body. Therefore, the seedling planting device 46 can be freely rolled with respect to the riding type traveling vehicle 1, but even if the seedling planting device 46 performs a rolling operation, it does not interfere with the left and right driving rear wheels 7 and 7 of the riding type traveling vehicle 1. Therefore, when the seedling planting device 46 is mounted on the rear part of the riding type traveling vehicle 1, the seedling planting device 46 can be disposed close to the rear part of the riding type traveling vehicle 1, and the overall length of the airframe can be shortened to reduce the size. A riding rice transplanter can be obtained. Further, as shown in FIG. 1, a seedling removal amount adjusting lever 55a for adjusting the removal amount of the seedlings that the seedling planting devices 58... Arranged between the link mechanism 44 and the left driving rear wheel 7 (the planting depth lever for adjusting the planting depth of the seedling by adjusting the vertical position of the pivot 59 of the leveling floats 60a, 60b, 60c is a link Furthermore, even if the seedling planting device 46 performs a rolling operation, the seedling is not interfered with the left and right driving rear wheels 7 and 7 of the riding type traveling vehicle 1 by being arranged between the mechanism 44 and the right driving rear wheel 7. The planting device 46 can be disposed close to the rear part of the riding type traveling vehicle 1, and the overall length of the aircraft can be further shortened to obtain a small riding type rice transplanter (such a small and lightweight riding type rice transplanter). To eliminate the problem of obtaining

  61 is a connecting wire provided between the front upper surface of the center leveling float 60c and the planting transmission case 54, and the other end is connected to a hydraulic valve provided on the riding type traveling vehicle 1 side. When the front part of the leveling float 60c is lifted above the appropriate range by external force, the hydraulic oil pumped out of the transmission case 2 is sent to the hydraulic cylinder 49 by the hydraulic pump attached to the left side surface of the transmission case 2. The piston is protruded and the link mechanism 44 is moved up to raise the seedling planting device 46 to a predetermined position. When the front part of the leveling float 60c falls below the proper range, the pressure oil in the hydraulic cylinder 49 is sent to the transmission case. 2, the link mechanism 44 is moved down to lower the seedling planting device 46 to a predetermined position, and the front part of the leveling float 60 c is within the proper range. When provided to allowed to retain a constant position NaeUe device 46 to stop the entry and exit of hydraulic fluid in the hydraulic cylinder 49 in the (NaeUe device 46 when in the proper position).

  An operation lever 52 that protrudes from the right side of the front cover 41b and is provided on the lower right side of the steering handle 42 operates a PTO clutch provided in the mission case 2 to turn on and off the power to the seedling planting device 46. It is configured so that it can be operated, and it is configured so that the seedling planting device 46 can be moved up and down manually by operating the hydraulic valve 38. That is, when the operation lever 52 is set to the “fixed” position, the PTO clutch is disconnected, the operation of the seedling planting device 46 is stopped, and the hydraulic valve 38 stops the pressure oil in and out of the hydraulic cylinder 49 so that the seedling planting device 46 is moved to a fixed position. The seedling planting device 46 is not raised or lowered. Then, when the operation lever 52 is operated backward to the “down” position, the PTO clutch is disengaged and the operation of the seedling planting device 46 is stopped, but the hydraulic valve 38 is switched by the vertical movement of the leveling float 60c. The automatic control state is entered. Further, when the operation lever 52 is set to the “ON” position, the PTO clutch is engaged, the seedling planting device 46 is driven, and the hydraulic valve 38 is automatically switched by the vertical movement of the leveling float 60c. Conversely, when the operation lever 52 is operated forward to the “up” position, the PTO clutch is disconnected and the operation of the seedling planting device 46 is stopped, and the hydraulic valve 38 is forcibly switched to the side where the seedling planting device 46 is raised. The seedling planting device 46 is raised.

  Reference numeral 62 denotes a differential lock pedal of a front wheel differential mechanism in the transmission system of the left and right steering drive front wheels 6 and 6. 63 is a headlamp provided in the lower front part of the front cover 41b. Reference numerals 70 and 70 denote left and right preliminary seedling platforms, and support pipes 73 and 73 fixed to both left and right ends of a pipe body 72 extending in the left and right direction of the machine body provided at the upper end of a frame 71 whose lower end is fixed to the machine body frame 4. Seedling frames 75 and 75 are provided in two stages on top of the left and right support frames 74 and 74 that are inserted in the vertical direction. Since the left and right spare seedling stage 70 have the same configuration, the left spare seedling stage 70 will be described in detail.

  First, two stages of seedling mounting frames 75 and 75 of the preliminary seedling mounting base 70 are fixed to the upper portion of the left support frame 74 by welding. Each seedling mounting frame 75 has a U-shaped frame frame 76 made of a thick pipe material welded and fixed to the left support frame 74, and U-shaped open ends of the frame frame 76. The engagement hole 80 is engaged with a frame body 77 fitted and fixed by welding, a closed rectangular frame body 78 welded and fixed to the upper part of the frame frame 76, and a pin body 79 provided on the frame frame 76, and a bolt. A flat plate-like mounting portion 83 fixed to an arm 82 provided on a frame frame 76 is provided at 81. 83 a are two through holes provided in the flat plate-like mounting portion 83.

  Reference numerals 84 and 84 denote reinforcing members, which are fixed by welding so as to connect and reinforce between the left support frame 74 and the frame frames 76 and 76 of the seedling placement frames 75. Each seedling mounting frame 75 is inclined at the position of the left preliminary seedling mounting table 70 in FIG. 1 so that the outer side is high and the left support frame 74 side is low in the front view of the machine body along the inclined line C in the figure. The left support frame 74 is fixed by welding. Further, the upper surface of the flat plate-like portion 83 and the outer upper end 77a of the frame body 77 are in a positional relationship along the inclined line C. When a seedling box is placed on each seedling placement frame 75, as shown in the figure. In addition, the bottom surface of the seedling box is received by the upper surface of the flat plate-like mounting portion 83 and the outer upper end 77a of the frame body 77, and the forward and backward movement of the seedling box is supported by the bent and raised portions of the closed rectangular frame body 78, The movement of the seedling box to the inside of the machine body is supported by folding and standing up inside the frame frame 76, and the movement of the seedling box to the outside of the machine body is inclined by the inclination of the seedling mounting frame 75 (the outside is high in the front view of the machine body and the left support frame The seedling box is stably placed on each seedling placing frame 75 by being inclined so as to be along the inclined line C in the figure so that the 74 side is lowered. Further, the movement of the seedling box to the outside of the machine body is prevented by the inclination of the seedling mounting frame 75, and there is no locking portion for preventing the movement of the seedling box to the outside of the machine body. When placing a seedling box from the outside, the seedling box placement work can be easily and quickly performed, and the work efficiency is good. Further, since the outer upper end 77a of the frame body 77 is configured to receive the bottom surface of the seedling box as a positional relationship along the inclined line C with the upper surface of the flat plate-like mounting portion 83, the left and right widths of the left and right preliminary seedling mounting tables 70 and 70 are increased. It can be made smaller (if the outer upper end 77a of the frame body 77 is configured to prevent the seedling box from moving outside the machine body, the outside of the frame body 77 must extend to the outer wall of the placed seedling box. ), A small and light rice transplanter can be obtained.

  Reference numeral 85 denotes an empty box support arm as a receiving member for receiving the lower end of the empty box, the upper end of which is welded and fixed to the center of the frame body 77 of the lower seedling mounting frame 75, and the left preliminary seedling mounting in FIG. At the position of the base 70, it is configured in an L shape in front view of the body. The usage method of the empty box support arm 85 will be described. An empty seedling box after an operator has sowed a seedling from a seedling box with a seedling plate and supplied the seedling to the seedling mount 57 is divided into two upper and lower stages. The seedling placement frames 75 and 75 are inserted into the spaces B and B formed by one side of the closed rectangular frame 78 and the frame 77 in a plan view, and the lower end thereof is received by the empty box support arm 85. Thus, two empty seedling boxes and seedling-seeking boards can be stored in the upper and lower space portions B and B. In this way, the empty seedling box and the seedling scooping plate are inserted and stored in the frame, so that the empty seedling box falls from the preliminary seedling stand 70 due to vibration of the fuselage or strong wind. Can be prevented. In the state in which the seedling box and the seedling-seeking board are stored, the front and rear and the lateral tilting of the seedling box and the side of the closed quadrangular frames 78 and 78 of the upper and lower two-stage seedling frames 75 and 75 and the frame 77 -Restricted by 77, falling downward is regulated by the empty box support arm 85, and the seedling box and the seedling-seeking board are stored and supported.

  On the other hand, the lower ends of the left and right support frames 74, 74 provided by being inserted in the support pipes 73, 73 in the vertical direction are in contact with the flanges 73a, 73a provided on the upper surfaces of the support pipes 73, 73. The flanges 74a and 74a for stopping the downward movement are fixed by welding, and the flanges 74a and 74a are provided with two through holes 74b and 74b, and the upper surfaces of the support pipes 73 and 73 are provided. The support pins 73b and 73b provided so as to protrude upward from the flange portions 73a and 73a provided in the upper and lower portions can be inserted and engaged. In addition, through holes 74c and 74c are provided at the lowermost ends of the left and right support frames 74 and 74, respectively, and the left and right support frames 74 and 74 are inserted into the support pipes 73 and 73 in the vertical direction, respectively. As shown, the split pins 74d and 74d are attached to the through holes 74c and 74c to prevent the left and right support frames 74 and 74 from coming out upward from the support pipes 73 and 73, respectively.

  The distance L between the bottom surface of the support pipe 73 and the split pin 74d is set to be larger than the height H of the support pin 73b. The operator lifts the left and right support frames 74 and 74 upward, and the support pin 73b The left and right support frames 74 and 74 can be freely rotated by removing the through-hole 74b of the flange portion 74a. That is, by selecting and engaging the two through holes 74b and 74b provided before and after the collar portion 74a with respect to the support pin 73b, the left and right preliminary seedling mounts 70 and 70 are shown in FIG. Working position positioned forward (state where each seedling placement frame 75 is positioned outside the support frame 74 and each seedling placement frame 75 protrudes outward from the body) and storage located behind the body indicated by the phantom line It can be fixed to a state (a state where each seedling placement frame 75 is positioned inside the support frame 74 and each seedling placement frame 75 is housed inside the machine body).

  In the above-described embodiment, the seedling box mounting portion is configured by the flat plate mounting portion 83 and the outer upper end 77a of the frame body 77. However, the entire seedling box mounting portion may be configured by only the frame body, or only the flat plate. You may comprise. Finally, the right spare seedling stage 70 has the same configuration as the left spare seedling stage 70 and the left and right objects.

  Reference numerals 90 and 90 are left and right alignment markers, and the upper ends thereof are fixed to the frame frames 76 and 76 of the left and right preliminary seedling mounts 70 and 70 by nuts, respectively. By maneuvering the aircraft along the seedlings planted in the paddy field 90 in the previous stroke, it is possible to plant seedlings along the seedlings planted in the previous stroke. Further, since the left and right preliminary seedling platforms 70 and 70 are set to project outward from the machine in the working state during the rice transplanting operation, the left and right preliminary seedling platforms 70 and 70 are provided on the frame frames 76 and 76 of the left and right preliminary seedling platforms 70 and 70, respectively. The alignment markers 90 and 90 are inevitably located outside the body, and the support portions 90a and 90a may have a short configuration, and the left and right alignment markers can be configured with a simple configuration. Further, when the vehicle is stored on the road or in the barn, the left and right auxiliary seedling mounts 70 and 70 are positioned in the interior of the aircraft, so that the left and right alignment markers 90 and 90 are also automatically stored. ing.

  The riding type rice transplanter configured as described above is put in a paddy field, and the left and right auxiliary seedling mounting tables 70 and 70 are placed on the respective seedling mounting frames 75 as positions projecting outward from the working body. When the engine 8 is started and the main transmission lever 40 is set to the “planting speed” position and the operation lever 52 is set to the “on” position to drive each part and advance the machine body, the seedling planting device 46 automatically moves to the proper position. The rice planting work is carried out under vertical control.

  When the remaining seedlings on the seedling stage 57 are reduced, the operator takes out the seedlings from the seedling boxes placed on the left and right spare seedling stage 70 and 70 with the seedling plate and supplies the seedlings to the seedling stage 57. Continue rice planting work. At this time, the empty seedling box and the seedling-seeking board are inserted into the respective space portions B of the left and right preliminary seedling placing stands 70 and 70, and the lower ends thereof are received and stored by the empty box support arm 85, so that they are emptied. The lightened seedling box can be prevented from falling from the left and right spare seedling mounts 70, 70 due to vibrations of the aircraft or strong winds, so that rice transplanting work can be performed efficiently. After that, if there are no seedlings on the left and right spare seedling platforms 70 and 70, the front part of the riding type traveling vehicle 1 is put on the heel so that the body is at right angles to the heel, and the left and right preliminary seedling platforms 70 and 70 are placed from the heel. After the empty seedling box is lowered, a new seedling box is supplied. And rice transplanting work is continued.

  In this way, when the rice planting operation is completed and the aircraft is loaded onto the truck, the left and right spare seedling platforms 70, 70 can be used in a plan view of the aircraft if the left and right spare seedling platforms 70, 70 are brought into the retracted position. Because it is in the same position as the side edge of the type traveling vehicle 1, the fuselage width is shortened and it can be loaded on small trucks (light four-wheel trucks). Tesumi is efficient.

It is a whole side view of a riding type rice transplanter. It is a whole top view of a riding type rice transplanter. It is a front view of the left preliminary seedling stage 70. It is a side view of the left preliminary seedling stage 70. FIG. 6 is a plan view of a left preliminary seedling table 70. It is a front view for explaining the operation of the left preliminary seedling stage 70. It is a sectional side view of the left preliminary seedling stage 70.

1: Passenger type traveling vehicle, 46: Seedling planting device, 70: Preliminary seedling mount, 85: Receiving member (empty box support arm), B: Space

Claims (1)

A riding type traveling vehicle (1) having left and right steering drive front wheels (6) and left and right drive rear wheels (7) is provided, and a seedling planting device (46) is provided to be freely rollable with respect to the link mechanism (44). The seedling planting device (46) is supported by a seedling support frame (56a) having left and right upper support members (56) at the upper end, a lower support member (55), and left and right upper support members (56). A seedling mounting table (57) that reciprocates in the left-right direction of the machine body, a seedling planting device (58) that divides seedlings by one line from the lower end of the seedling mounting table (57), The amount of seedlings for adjusting the amount of seedlings separated by the seedling planting device (58) by adjusting the leveling floats (60a, 60b, 60c) mounted so as to be swingable up and down and the lower support member (55) up and down. Adjustment lever (55a) and leveling float (60a, 60b, A planting depth lever for adjusting the planting depth of the seedling by adjusting the vertical position of the pivot (59) of 0c), fixing the seedling mounting frame (75) on the upper part of the support frame (74), In the seedling planting machine equipped with a seedling placement stand (70) having a seedling box placement portion on which the seedling placement frame (75) and a seedling box can be placed on the seedling placement frame (75), the preliminary seedling placement stand (70) A plurality of seedling box mounting portions are provided so that a plurality of seedling boxes can be placed thereon, and the plurality of seedling box mounting portions are configured so that the outside is higher than the inside of the machine body. The mounting portion includes a frame frame (76) and a frame body (77) fixed to the frame frame (76), and a plurality of seedling box mounting portions are vertically arranged inside the frame body (77). Forming a space portion (B) penetrating into the seedling box, and the space portion (B) is configured so that the seedling box can be inserted therethrough. Provided by fixing the receiving member (85) for supporting the seedling box below, the outer upper end of the flat rest portion of the seedling box footrest preliminary seedling mounting base (70) (83) and the frame (77) (77a) The outer upper end (77a) of the frame body (77) is arranged on an inclined line (C) along the upper surface of the flat plate-like mounting portion (83), and the alignment marker (90) is attached to the frame frame (76). A seedling planting machine in which the alignment marker (90) is located outside the machine body.

Images