JP2013135701A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely and smoothly perform circulating motion of a seedling feeding cup.SOLUTION: The seedling transplanter includes a traveling apparatus, a seedling frame placed on the traveling apparatus and holding a number of seedlings, a seedling feeding apparatus to circularly move a number of the seedling feeding cups (41) which receive the seedlings supplied from the seedling frame, and a seedling planting apparatus furnished with a vertically moving seedling planting part (4a). The seedling transplanter is further provided with a circular motion guide member (42) extended along a circular motion orbit of the seedling feeding cup (41) and guiding the circulatory motion of the seedling feeding cup (41), and a flotation preventing guide member (44a) to prevent the flotation of the seedling feeding cup (41).

Description

  The present invention relates to a field seedling transplanter.

  A walking type seedling transplanter for planting seedlings such as green onions, a seedling frame that can mount a large number of seedlings, and a seedling supply device that rotates a seedling supply cup that accommodates seedlings supplied from the seedling frame into a turntable shape, A seedling planting device is provided for planting seedlings falling from the seedling feeding device in a field.

JP-A-2005-341820

An object of the present invention is to accurately and smoothly perform a round movement of a seedling supply cup. Moreover, it is to make it easy to take out the water tank while securing the arrangement space of the water tank. Moreover, it is arranging four seedling planting parts below the elliptical orbit of the seedling supply cup .

The above-described problems of the present invention are solved by the following solution means.
That is, the invention according to claim 1 is supplied from the traveling device (1), the seedling frame (11) on which a large number of seedlings mounted on the traveling device (1) are placed, and the seedling frame (11). that seedling seedling supply device for circular movement of the large number of seedlings supply cup (41) which receives the (40), seedling transplantation machine with seedling planting unit for vertical movement seedling planting apparatus having a (4a) (4) The guide member (42) for circular movement along the circular movement locus of the seedling supply cup (41) for guiding the circular movement of the seedling supply cup (41) and the seedling supply cup (41) are prevented from floating. A seedling transplanting machine provided with a guide body (44a) for preventing lifting .

Further, the invention described in claim 2 is provided with an inclined seedling frame (11) and a water tank (25) for storing water to be supplied to the seedling planting part (4a) below the seedling frame (11). 2. The seedling transplanting machine according to claim 1, wherein the seedling transplanting machine is arranged near the upper inclined side of the seedling frame (11) .

Moreover, the invention of Claim 3 arrange | positions four seedling planting parts (4a), and the left-right pair inside 4 seedling planting parts (4a) is an ellipse of a seedling supply cup (41). The arrangement is characterized in that the arrangement is arranged below the straight line portion on the rear side of the track, and the left and right pair on the outside can be arranged below the straight line portion on the front side of the oval track of the seedling supply cup (41). Or it is a seedling transplanter of Claim 2.

According to the first aspect of the present invention, the guide body 42 for circular movement guides the movement of the seedling supply cup 41 along the circular movement locus, and the seedling supply cup 41 is lifted by the guide body 44a for preventing lifting. Therefore, the revolving movement of the seedling supply cup 41 can be performed accurately and smoothly .

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, since the seedling frame 11 is provided to be inclined, the arrangement space for the water tank 25 can be secured, and the water tank 25 is used as the seedling frame. 11 can be easily taken out from the upper side of the slope .

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, four seedling planting portions 4 a can be arranged below the elliptical orbit of the seedling supply cup 41.

It is a side view of the seedling transplanting machine of one Example of this invention. It is a top view of the seedling transplanting machine of FIG. It is a side view of the seedling transplanting machine of one Example of this invention. It is a top view of the seedling transplanting machine of FIG. It is the top view of the seedling transplanting machine of one Example of this invention, and the rear view of an auxiliary table. It is a principal part top view of the seedling transplanting apparatus and seedling supply apparatus of the seedling transplanting machine of one Example of this invention. It is a front view which shows the attachment structure part of the seedling frame of the seedling transplanting machine of one Example of this invention.

In an embodiment of the present invention, a seedling transplanting machine for planting seedlings such as green onions in a groove portion or flat ground between ridges U will be described with reference to the drawings.
1 and 2 show a side view and a plan view of a seedling transplanter according to an embodiment of the present invention.

  In the description of the present embodiment, when referring to the front or rear, 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. When the term “right” or “left” is used, the right hand side is referred to as the right and the left hand side is referred to as the left when viewed from the operator standing at the front of the aircraft at the front of the aircraft.

  The seedling transplanting device 4 includes a machine body including the traveling device 1 and the steering handle 2, and a seedling planting device 4 including a beak-shaped seedling planting portion 4 a that can be opened and closed by connecting to a link mechanism 3 that is driven to move up and down. It is set as the structure which provided.

  In the illustrated example, the traveling device 1 includes an engine 5, a pair of left and right rear wheels 7 and 7 that are driven and rotated by transmission of the power of the engine 5, and a pair of left and right front wheels 6 and 6 that are rotatably supported. It is said.

  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 portion to the left side of the engine 5, and this is connected to the left side portion of the engine 5. The output shaft of the engine 5 enters the case portion and power is transmitted to the transmission mechanism in the transmission case 8. The transmission case 9, 9 is rotatably attached to the left and right side portions of the transmission case 8, and the tip of the wheel drive shaft 9A is extended from the transmission case 8 to the left and right outer sides at the rotation center of the transmission case 9, 9. Enters the transmission case 9, 9 to transmit power for traveling. The driving power is transmitted to the axles 10 and 10 that extend to the rear side of the machine body and project to the side of the rear end side through the transmission mechanism in the transmission cases 9 and 9, and the rear wheels 7 and 7 are driven to rotate. It is supposed to be.

  Also, upwardly extending arms 9B and 9B are integrally attached to the attachment portions of the transmission cases 9 and 9 to the transmission case 8, and the lifting and lowering hydraulic cylinders 15 are rotatable on the arms 9B and 9B, respectively. It is connected. At the tip of the piston rod 15a of the lifting / lowering hydraulic cylinder 15, a horizontal bar 13 fixed to the airframe is attached.

Further, hunting that is likely to occur during automatic horizontal control of the aircraft is prevented by operating the horizontal control of the aircraft by a manual lever 23 provided on the handle 2.
Further, when the elevating hydraulic cylinder 15 is actuated and the piston rod 15a is contracted, the transmission cases 9 and 9 are rotated downward and the airframe is raised.

  On the other hand, when the piston rod 15a of the lifting hydraulic cylinder 15 protrudes, the left and right arms 9B, 9B rotate forward, and accordingly, the transmission cases 9, 9 rotate upward, and the fuselage descends. . The lifting / lowering hydraulic cylinder 15 is configured to actuate the aircraft to a set height with respect to the farm scene based on the detection result of the sensor S0 that detects the height of the farm scene relative to the aircraft. It is also configured to operate so as to raise or lower the fuselage by manipulating an operation tool disposed in the vicinity of 2.

  Further, since the sensor S0 detects the height of the groove floor surface of the eaves U, it is possible to operate the airframe to be a set height with respect to the height of the groove floor surface based on the detection result. Therefore, it can also be used to control the seedling planting depth. In addition, protrusion S0a for making a planting groove | channel on a groove floor surface was provided in the center part of the bottom face of sensor S0. For this reason, it is easy to insert the tip of the seedling planting tool 4a at the seedling planting position into the groove floor surface.

  The control valve interlocking member for the hydraulic cylinder 15 is pulled by the main hydraulic cable 12 when the fuselage passes through the end of the kite U and the kite raising sensor S1 is lowered downward by a predetermined amount around the pivot fulcrum S1a. When the cable is pulled, the hydraulic cylinder 15 is actuated to rotate the rear wheel 7 downward about the wheel drive shaft 9A to raise the machine body.

  When the left and right horizontal control hydraulic cylinders 15 extend and retract to different positions, the left and right transmission cases 9 and 9 are moved up and down alternately to tilt the aircraft to the left and right. The left / right horizontal control hydraulic cylinder 15 is configured to operate so that the airframe is in a desired left / right inclined posture based on the operation of the manual lever 23.

The pair of front wheels 6 and 6 are rotatably attached to an axle 17 attached to a pair of left and right front wheel support frames 16 supported by the vehicle body.
The steering handle 2 is attached to the rear end portion of the body frame 14 whose front end portion is fixed to the mission case 8. The body frame 14 is disposed at a position deviated from the right and left center of the body 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 14 to the left and right, and the rear end portions thereof serve as grip portions 2 a and 2 a 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 illustrated example, the grip portions 2a and 2a are divided into left and right. However, the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portions may be used as the grip portions 2a and 2a.

  The link mechanism 3 is attached to a planting transmission case 18 that includes a transmission mechanism that receives power for driving the seedling planting tool from the mission case 8 and transmits it. As shown in the figure, the planting transmission case 18 has a front portion connected to the rear portion of the mission case 8, a first case portion 18a extending rearward and obliquely upward therefrom, and an upper left portion of the first case portion 18a. A second case portion 18b that is fixed and extends to the left side, a third case portion 18c that is fixed to the left end portion of the second case portion 18b and that extends rearward and obliquely downward, and an outer lower end portion of the third case portion 18c. A fourth case portion 18d that is fixed to the left side and extends to the left side, and a fifth case portion 18e that is fixed to the left end portion of the fourth case portion 18d and extends horizontally rearward. The first case portion 18a to the fifth case portion 18e have a transmission mechanism that transmits power for driving the link mechanism 3 up and down.

  The transmission mechanism built in the first case portion 18a includes an intermittent drive mechanism that stops the link mechanism 3 and the seedling planting device 4 at the uppermost position of the raising / lowering movement or at a position in the vicinity thereof, and a link. And a clutch mechanism for stopping the lifting and lowering of the mechanism 3 and the seedling planting device 4. The time for stopping by the intermittent drive mechanism is adjusted by a speed change mechanism provided in the intermittent drive mechanism, and the adjustment between the seedling planting stocks by the seedling planting device 4 is adjusted by this adjustment.

  The link mechanism 3 is provided on the rear side of the seedling planting device 4 and the first lifting arm 20 that is rotatably connected to the left and right intermediate portion of the left and right shaft 19 provided on the front side of the seedling planting device 4. And a second elevating arm 22 rotatably connected to the left side of the left and right shaft 21.

  Although details are omitted, the first elevating arm 20 and the second elevating arm 22 move up and down while swinging. As a result, the lower end of the seedling planting device 4 has a substantially elliptical locus that is long in the side view. Move up and down at T.

  The seedling planting device 4 is provided with a beak-shaped seedling planting portion 4a that extends downward and opens in the left-right direction. Then, the seedling planting device 4 storing the fallen seedling is lowered by the link mechanism 3 according to a substantially elliptical trajectory T that is vertically long in a side view and inserted into the field, and the right and left beak-shaped seedling planting units If 4a is open | released by the left-right direction of a body, a seedling will be planted in a farm field and the seedling planting apparatus 4 will raise after that.

  The lower end portion of the seedling planting device 4 is moved up and down in a substantially elliptical locus T in a counterclockwise direction when viewed from the left side. Accordingly, when the seedling planting device 4 is moved up and down so as to draw the locus T in the above rotation direction while traveling, the lower end portion of the seedling planting device 4 at the lower end of the locus T is in the soil of the straw U in the field. A seedling planting device 4 having a beak-shaped seedling planting portion 4a is opened in the left-right direction of the machine body and releases the seedlings in the seedling planting device 4 to the soil of the cocoon U. Therefore, the soil brought to the slope of the adjacent ridge in the left-right direction of the seedling by the seedling planting device 4 easily flows into the periphery of the seedling again, and is more easily covered with the pressure-reducing wheels 38 and 38. Moreover, when the seedling planting part 4a opens in the left-right direction of the machine body, the seedling planting device 4 hits the seedling planted when the seedling is planted in the soil in the groove and then ascends, disturbing the seedling planting posture. This can be prevented. This is particularly effective when planting long seedlings such as green onions.

  The seedling supply device 40 transmits power from the engine 5 by connecting one rotating shaft 51a of the sprockets 51, 51 and the first case portion 18a via the transmission shaft 53 to rotate the left and right sprockets 51, 51. The seedling supply cup 41 is driven to move around.

  A large number of seedling supply cups 41 are connected at equal intervals above the seedling supply device 40, and guide bodies 42, 42 that guide the movement of the seedling supply cup 41 along the circular movement trajectory are moved around the seedling supply cups 41. Provided inside and outside the trajectory, respectively. Thereby, the revolving movement of the seedling supply cups 41 is performed accurately and smoothly.

  An operator who operates the handle can operate the main clutch lever 27 provided on the handle 2 to perform on / off operation of the main clutch. Since the sub-clutch lever 28 is provided in the vicinity of the seedling guide body 42 so that the operator can also perform the main clutch on / off operation, the operator during the seedling supply operation also immediately performs the main clutch on / off operation. Therefore, an operator who is performing seedling supply work, for example, to avoid some danger can also stop the work travel.

The seedling transplanter is a seedling transplanter for groove planting in which seedlings are planted in the center of the groove between the ridges U, and a pair of left and right front wheels 6 and 6 and rear wheels 7 and 7 run in the groove between the ridges. .
Then, the seedling planting device 4 plants seedlings on the inner side in the left-right direction of the machine body, that is, on the soil portion not traveling on the front wheels 6, 6 from the ground contact point of the pair of left and right front wheels 6, 6.

By adopting such a configuration, seedlings can be planted in a place where the pair of front wheels 6 and 6 are not stepped on.
Cylinders 15 and 15 for rotating the left and right transmission cases 9 and 9 in the vertical direction are provided, and side clutches (not shown) for cutting off engine power are provided in the left and right transmission cases 9 and 9, respectively. ing.

  A water tank 25 is disposed above the planting transmission case 18 in front of the machine body (not shown in FIG. 2). Water is supplied from the water tank 25 into the seedling planting part 4a via a water pump and a water hose (not shown).

  In the present embodiment, the seedlings placed in the seedling frame 11 are sequentially supplied manually from above to the large number of seedling supply cups 41 that are moving around by the seedling supply device 40. Are arranged at positions where the seedling frame 11 and the seedling supply device 40 overlap each other in plan view, so that it is easy to supply the seedling from the seedling frame 11 to the seedling supply cup 41 of the seedling supply device 40 and transplant the seedling. The machine can be downsized.

  Since a space is provided above the seedling supply cup 41 that moves in the left-right direction on the rear side of the group of seedling supply cups 41 having an elliptical orbit in a plan view shown in FIG. 11 makes it easy to supply seedlings to the seedling supply cup 41.

  Further, in the leek transplanter of this embodiment, the front wheel support frame 16 has an arrow on the inner side of the steering shaft 17 that is the steering center of the front wheel 6 so that the steering direction can be easily understood when the front wheel 6 is steered. A molded front wheel steering lever 71 is provided. The front wheel steering lever 71 is provided with an operating portion in the vicinity of the handle 2, and the front wheel steering lever 71 is provided with a pair of left and right side clutch levers 72, 72 for manually operating the side clutches of the left and right rear wheels 7, 7. The front wheel steering lever 71 is supported by a lever guide 73 attached to the transmission case 18e.

  Accordingly, the direction of the front wheel 6 can be easily grasped by the front wheel steering lever 71, and the front wheel steering lever 71 is provided on the inner side of the front wheel 6, so that the front wheel steering lever 71 is attached to other structures around the body. Can be prevented from interfering with each other.

  As shown in FIG. 2, the pair of left and right side clutches of the rear wheels 7 and 7 are turned on and off by operating the side clutch lever 72. When the side clutch is not used, only the front wheel 6 is steered by operating the central lever 74 without the side clutch lever.

  Further, as shown in the side view of FIG. 3 and the plan view of FIG. 4, the transplanting machine of another embodiment of the present invention opens the seedling planting device 4 in the left-right direction of the machine body so as to plant seedlings in the field (畝). It can be set as the structure which arrange | positioned the four beak-shaped seedling planting parts 4a.

  In this case, a pair of the four seedling planting parts 4a is arranged below the rear side of the group of seedling supply cups 41 having a long elliptical orbit in the left-right direction at a symmetrical position with respect to the longitudinal center line of the aircraft in plan view. The remaining pair is arranged below the front side of the seedling supply cup 41 group having an elliptical orbit in a symmetrical position with respect to the longitudinal center line of the body in plan view.

  In this configuration, the seedling frames 11 and 11 are divided into a pair of left and right, and the seedling supply cup 41 group having an elliptical orbit is divided into a rear left and right upper part, so that the seedling overlaps with the seedling supply cup 41 group in plan view. The seedling frames 11 and 11 for the seedling supply cup 41 group in which the constituent part for dropping the seedling from the seedling supply cup 41 to the beak-shaped seedling planting part 4a has an elliptical orbit by being arranged above the supply cup 41 group. Therefore, the seedling frames 11 and 11 can be brought closer to the operator without disturbing the supply of seedlings.

  As shown in the plan view of the transplanting machine of another embodiment shown in FIG. 5, the auxiliary table 44 of the guide body 42 that guides the seedling supply cup 41 group having the ellipse orbit long in the front-rear direction is the direction of the arrow S in FIG. As shown in the side view in the upper right frame A as viewed from the perspective, a configuration in which a collar 44a is attached so that the seedling does not fall from the seedling supply cup 41 may be adopted. The collar 44a also serves as a guide for preventing the seedling supply cup 41 from floating.

As shown in the plan view of the main part of the seedling planting device 4 and the seedling supply device 40 of another embodiment in the seedling transplanting machine of FIG. An example is shown in which the hexagonal slide rod 26 is provided so as to be rotatable about an axis in the vertical direction provided at the end of the tip of the lifting link mechanism 3.

  When the hexagonal slide bar 26 is rotated around the vertical axis, the position of the seedling planting portion 4a can be changed in the left-right direction of the machine body. Further, the hexagonal slide shaft 26 is fixed in an oblique direction with respect to the elevating link mechanism 3, and the seedling can be dropped onto the seedling planting portion 4a at the bent portion of the elliptical orbit of the seedling supply cup 41.

  Further, the rotation of the hexagonal slide shaft 26 is fixed in an oblique direction with respect to the lifting link mechanism 3 of the seedling planting portion 4a, and at the bent portion of the elliptical track of the seedling supply cup 41 having a long elliptical track in the left-right direction The structure which takes over the seedling from the seedling supply cup 41 to the seedling planting part 4a is adopted.

  The opening / closing direction of the pair of beak bodies of the seedling planting part 4a may be changed by the vertical rotation of the seedling planting part 4a with respect to the lifting link mechanism 3. For example, when the opening / closing direction of the pair of beak bodies of the seedling planting part 4a is set to the left-right direction, it is performed when a relatively large seedling (bare seedling) is planted. When the opening / closing direction of the pair of beak bodies is set to the front-rear direction, it is performed at the time of planting a relatively small seedling (cell seedling). Further, the opening / closing directions of the pair of beak bodies of the seedling planting part 4a may be different depending on the rotation position of the seedling planting part 4a with respect to the lifting / lowering link mechanism 3 (the hopper opens and closes diagonally when obliquely fixed). .

  Moreover, as shown in the figure seen from the body front of the attachment structure portion of the seedling frames 11, 11 provided in a pair of left and right seeds in FIG. 7, instead of the water tank 25 of the seedling transplanting machine in FIG. You may employ | adopt the structure which arrange | positions inside seedling frames 11 and 11. At this time, the seedling frames 11 and 11 are arranged to be inclined upward toward the center of the machine body, and a space for arranging the water tank 25 is secured. For this reason, it becomes easy to take out the water tank 25 from the inside of the seedling frames 11 and 11, and since the seedling frame 11 is inclined, it is easier to take out the seedling compared to the case where the seedling frame 11 is arranged in a horizontal position.

The seedling transplanting machine of the present invention can be used as a seedling transplanting machine to be planted in a furrow or flat land .

Claims (3)

A traveling device (1), a seedling frame (11) on which a large number of seedlings mounted on the traveling device (1) are placed, and a number of seedling supply cups that receive seedlings supplied from the seedling frame (11) 41) seedling supply device for circular movement (40), the seedling transplantation machine having a seedling planting apparatus having a seedling planting unit for vertical movement (4a) (4), orbiting seedlings supply cup (41) A guide body (42) for circular movement along the circular movement locus of the seedling supply cup (41) for guiding the movement, and a guide body (44a) for preventing the seedling supply cup (41) from rising. A seedling transplanter characterized in that A water tank (25) for inclining the seedling frame (11) and storing water to be supplied to the seedling planting part (4a) is provided below the seedling frame (11) and above the seedling frame (11). The seedling transplanting machine according to claim 1, wherein the seedling transplanting machine is arranged near the side . Four seedling planting parts (4a) are arranged, and the left and right pair of the inside of the four seedling planting parts (4a) are below the straight part on the rear side of the elliptical orbit of the seedling supply cup (41). The seedling transplanter according to claim 1 or 2, characterized in that the pair of left and right outer sides can be arranged below a straight portion on the front side of the elliptical orbit of the seedling supply cup (41). .

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