JP7205447B2 - transplanter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a transplanter for transplanting seedlings of vegetables and the like to fields.

Conventionally, as a transplanter, there is a seedling transport device that transports vine-shaped seedlings such as sweet seedlings on a body (running body) equipped with a running device and a steering handle, and a seedling transported by the seedling transport device. There is known a seedling transplanter equipped with a planting device for planting seedlings (see Patent Document 1).

In this seedling transplanter, the seedling conveying device includes an upper lateral feeding section that feeds a seedling container housing seedlings supplied by a worker on the upper side of the traveling vehicle body to one of the left and right directions, and the upper lateral feeding section that conveys the seedling container. A descending feeding section that conveys the seedling containers conveyed to the lower side of the machine body, and an ascending feeding section that conveys the seedling containers conveyed from the descending feeding section to the upper side of the machine body and returns them to the conveying start side of the upper lateral feeding section. It consists of a seedling conveying belt equipped. In addition, in this seedling transplanter, the seedling conveying device is inclined so that the upper lateral feeding portion is located on the rear side when the conveying path is viewed from the side, and the operator behind the seedling conveying device is slanted. The seedling container of the upper lateral feeding part is arranged at a position near the . This makes it easier for the operator to supply the seedlings to the seedling container of the upper lateral feeding section.

JP 2014-158425 A (paragraphs 0026, 0057, FIG. 1, FIG. 18, etc.)

However, in the conventional seedling transplanter, there is a problem that it is difficult for the operator to set the seedlings in the seedling container and supply the seedlings while the worker is in front of the seedling conveying device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a transplanter that allows an operator to easily set and supply seedlings to the seedling conveying device even when the worker is in front of the seedling conveying device.

The above problems of the present invention are solved by the following means.
That is, the invention according to claim 1 comprises a traveling vehicle body (10) capable of traveling in a farm field, and a revolving mechanism (21) provided at the rear of the traveling vehicle body (10) and circulating so as to approach and pass through the farm field. a seedling conveying device (20) for setting and conveying seedlings in a plurality of seedling holders (22) mounted at intervals; a planting device (40) for taking out the seedlings held in the seedling holder (22) near the field and planting them in the field;
The planting device (40) includes a planting arm (42) having a seedling picker (41) attached to its lower end, and a mechanism ( 43) and a planted transmission case (44),
The planting arm (42) and the planting transmission case (44) are arranged in the space between the rear part of the traveling vehicle body (10) and the lower part of the seedling conveying device (20), and the planting transmission case (44) is attached to the rear part of the traveling vehicle body (10) via an elevating link mechanism (18) so as to be able to ascend and descend,
The seedling conveying device (20) is provided to be supported by the conveying unit frame (25) in a state in which the circulating route of the circulating mechanism (21) is in a forward tilting posture, and the route is circulated in the forward tilting posture. Among them, the path portion on the upper end side is configured as a seedling supply section (23) for setting and supplying seedlings to the seedling holder (22), and the conveying section frame (25) is provided at the rear of the planting transmission case (44). A transplanter characterized in that it is supported by a support frame (47) provided .

The invention according to claim 2 is the transplanter according to claim 1 , wherein the circulation mechanism (21) has path portions (S1, S2) that move linearly in the left-right direction on the upper end side and the lower end side. This transplanter is characterized in that it is driven intermittently by repeating stopping and moving at predetermined intervals while rotating.

The invention according to claim 3 is the transplanter according to claim 1 or 2 , wherein the seedling conveying device (20) is such that the conveying unit frame (25) is a support frame in the planting transmission case (44). (47) is supported so as to be rotatable in the front-rear direction in order to change the inclination angle (α) of the forward-leaning posture, and the planting device (40) is configured so that the planting posture of the seedlings with respect to the field is changed by the seedling conveying device. The transplanter is characterized by being changed by changing the inclination angle (α) of (20).

The invention according to claim 4 is the transplanter according to any one of claims 1 to 3 , wherein the circulation mechanism (21) has a path portion (S2) that moves linearly on the lower end side. In addition, the surrounding portion (S2) is configured as a seedling removal possible range (26) of the planting device (40), and the planting device (40) is within the seedling removal possible range (26). The transplanter is characterized in that the seedling pick-up position is changed by moving inside.

The invention according to claim 5 is the transplanter according to any one of claims 1 to 4 , wherein the winding mechanism (21) is configured so that the winding direction (H) can be switched. It is a transplanting machine characterized by

The invention according to claim 6 is the transplanter according to any one of claims 1 to 5 , wherein the planting transmission case (44) moves up and down in conjunction with the operation of the planting arm (42). This transplanter is characterized by being provided with a crushing device (50) for crushing the field by hitting the seedlings after planting.

The invention according to claim 7 is the transplanter according to any one of claims 1 to 6 , wherein the circling mechanism (21) of the seedling conveying device (20) is provided in the conveying unit frame (25). Left and right rotary bodies (32A, 32B) rotatably provided at both left and right parts, and the plurality of seedling holders (22) are endlessly wound around the left and right rotary bodies (32A, 32B), and the plurality of seedling holders (22) are predetermined. and a driving rotating body (36) that imparts rotational power to the left and right rotating bodies (32A, 32B) or the holder transporting member (34). The planting machine is characterized in that the planting transmission case (44) is provided with a transfer transmission shaft (48) connected to the drive rotor (36) to transmit rotational power.

According to the first aspect of the invention, it is possible to reduce the distance in the longitudinal direction between the rear portion (10b) of the traveling vehicle body and the upper end portion of the seedling conveying device (20). Even when the user is in front of the conveying device (20), the seedlings can be easily set in the seedling conveying device (20) and supplied.
Moreover, according to the first aspect of the invention, the planting arm (42) and the planting transmission case (44) of the planting device (40) can be effectively arranged without increasing the size of the transplanter. Further, when adjusting the seedling planting depth of the planting device (40), there is no need to adjust the vehicle height of the traveling vehicle body (10), and the planting transmission case (44) of the planting device (40) is moved up and down. The seedling conveying device (20) can also be moved up and down collectively by simply moving it, and can be easily adjusted.

According to the invention of claim 2 , in addition to the effects of the invention of claim 1, the part that moves linearly in the left-right direction on the upper end side of the revolving mechanism (21) is configured as a seedling supply part. coupled with the intermittent circular movement, the seedling supply work can be performed efficiently and accurately. In addition, it is possible to configure a part of the part that moves linearly in the left-right direction on the lower end side as the seedling picking position, and coupled with the intermittent circular movement, the seedling picking work and eventually the seedling work become a series of work. The planting work can also be performed efficiently and accurately.

According to the invention of claim 3 , in addition to the effect of the invention of claim 1 or 2 , if the inclination angle (α) of the seedling conveying device (20) is changed, the seedlings can be planted in the field by the planting device. You can change your posture. As a result, for example, if the inclination angle (α) of the seedling conveying device (20) is changed to a small angle, it becomes possible to plant the seedlings in a state close to being perpendicular to the field surface. , oblique planting can be performed. On the contrary, if the angle of inclination (α) of the seedling conveying device (20) is changed to a large angle, it becomes possible to plant the seedlings in a state close to horizontal with respect to the field surface. can be planted. Therefore, according to the present invention, it is possible to plant seedlings in a plurality of different planting postures using a single transplanter.

According to the invention of claim 4 , in addition to the effect of the invention of any one of claims 1 to 3 , the seedling pick-up position by the planting device (40) is set to the lower end side of the orbiting mechanism (21). The seedling can be easily changed by moving within the seedling removal possible range (26) consisting of the path portion (S2) that moves linearly in the left and right direction, and thereby the seedling can be planted in a position suitable for planting. can.

According to the invention of claim 5 , in addition to the effect of the invention of any one of claims 1 to 4 , the direction of rotation (H) of the orbiting mechanism (21) is set to the operation of supplying seedlings. It is possible to change it according to the dominant hand of the person. As a result, it is possible to improve the work efficiency of the worker and to suppress the occurrence of work mistakes (missetting of seedlings) by the worker.

According to the invention of claim 6 , in addition to the effect of the invention of any one of claims 1 to 5 , the planting transmission case (44) is moved up and down and the suppressing tool (50) is also operated. They can be moved up and down collectively. In addition, since the power for moving the suppressor (50) up and down can be transmitted from the planting transmission case (44), compared to the case where the power is transmitted from a separate path other than the planting transmission case (44), the power consumption is reduced. A transmission path can be simplified.

According to the invention of claim 7 , in addition to the effect of the invention of any one of claims 1 to 6 , the circling mechanism (21) of the seedling transport device (20) can be made to have a relatively simple structure. can do. In addition, the driving rotating body (36) in the revolving mechanism (21) is a planting transmission case (44).
Since the turning power is transmitted through the drive transmission shaft (48) provided in the planting transmission case (44), the power transmission path can be simplified compared to the case where the power is transmitted from another path other than the planting transmission case (44). can be made

It is a side schematic diagram of a seedling transplanter. It is a side schematic diagram which expands and shows the rear part of a seedling transplanter. It is a schematic diagram when the seedling conveying apparatus in a seedling transplanter is seen from the back diagonally above. It is a conceptual diagram when a part of planting device in a seedling transplanter is seen from behind. It is a plane conceptual diagram of the rear part of a seedling transplanter. (A) is a schematic side view showing the state when the inclination angle of the conveying unit frame of the seedling transplanter is changed to a small angle, (B) is one state of seedling planting work at the inclination angle of (A) and oblique planting. It is a conceptual diagram which shows an example of the seedling which carried out. (A) is a schematic side view showing the state when the inclination angle of the conveying unit frame of the seedling transplanter is changed to a large angle, (B) is a state of seedling planting work at the inclination angle of (A) and planting on the bottom of the ship. It is a conceptual diagram which shows an example of the seedling which carried out.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a riding-type seedling transplanter 1 as an example of a transplanter according to an embodiment.
The seedling transplanter 1 according to the present embodiment is suitable for planting liana seedlings, such as sweet potato seedlings, in a field 100 . In the following description, unless otherwise specified, front and rear refer to the front and rear sides when the seedling transplanter 1 moves forward, and left and right refer to the right and left sides when the seedling transplanter 1 moves forward.

The seedling transplanter 1 includes a traveling vehicle body 10 capable of traveling in a field 100, a seedling conveying device 20 for supplying seedlings 9 to be planted and conveying them closer to the field 100, and conveying the seedlings by the seedling conveying device 20. A planting device 40 or the like for planting seedlings 9 to be grown in a field 100 is provided.

First, as shown in FIG. 1, the traveling vehicle body 10 includes a vehicle body frame 11, left and right front wheels 12 and rear wheels 13, an engine 14 for transmitting rotational power to at least one of the front wheels 12 and the rear wheels 13, and a driving force. A driving device including a transmission device 15 and the like, and a cockpit 16 and the like are provided. Further, the traveling vehicle body 10 is provided with covers 17 on portions of the vehicle body frame 11 that need to be covered from the outside.

Of these, the front wheels 12 and the rear wheels 13 are designed to have a relatively high vehicle height, which is the distance from the ground on which the field 100 or the like travels, to the vehicle body frame 11. Therefore, conditions such as the diameter of the wheels and how to attach the axles are considered. is set. The operator's seat 16 includes a seat 16a on which a driver who operates the vehicle body 10 sits, a steering handle 16b for steering the front wheels 12, a meter panel (not shown), an operation lever, an operation button, and the like.

Such a traveling vehicle body 10 can travel in a state where it straddles the ridges 102 with the left and right front wheels 12 and the left and right rear wheels 13 even in the field 100 where the ridges 102 are formed, for example. Reference numeral 101 in FIG. 1 and the like indicates a running surface in the field 100 on which the front wheels 12 and the rear wheels 13 roll and run.

Next, the seedling conveying device 20 sets the seedlings 9 in a plurality of seedling holders 22 attached to a revolving mechanism 21 that revolves so as to pass close to the field 100 and supplies the seedlings 9 to the planting device 40. It is a device configured to convey to a predetermined position (seedling picking position).

The seedling conveying device 20 is mainly composed of a revolving mechanism 21 to which a seedling holder 22 is attached. Details of the revolving mechanism 21 and the seedling holder 22 will be described later.
The seedling conveying device 20 is provided at a rear portion (end portion on the rear side) 10b of the traveling vehicle body 10 via a portion of the planting device 40 .

Moreover, as shown in FIG. 2 and the like, the seedling conveying device 20 is provided in a state in which the route (orbiting route) of the orbiting mechanism 21 is tilted forward. The forward tilting posture is a posture in which the upper portion is inclined more toward the forward side of the traveling vehicle body 10 than the lower portion. In other words, the forward tilting posture is such that the imaginary plane (chain line K in FIG. 2) surrounded by the circular path is tilted forward in the forward direction with respect to the substantially vertical plane of the field 100. It is the attitude of the state. The revolving mechanism 21 in this embodiment is installed in a state in which the entirety thereof is inclined forward.

Further, the seedling conveying device 20 is configured as a seedling supply section 23 for setting seedlings in the seedling holder 22 and supplying the seedlings on the upper end side of the path that revolves in the forward tilting posture in the revolving mechanism 21 . The path portion on the lower end side is configured as a seedling picking position 24 where the seedlings 9 are picked out by the planting device 40 .

The seedling transplanter 1 is configured such that the work of setting the seedlings 9 in the seedling holders 22 and supplying them is performed by an operator other than the driver. Therefore, a work seat 28 is provided on the upper portion of the rear portion 10b of the traveling vehicle body 10 separately from the seat 16a of the operator's seat 16. As shown in FIG.

The work seat 28 is mounted on a support 29 extending from the body frame 11, for example, at one of the left and right sides of the seat 16a of the operator's seat 16 (FIG. 5). Further, a scaffold 30 is provided below the work seat 28 on which the operator's feet are placed. Thereby, the worker can stably perform the work of supplying the seedlings 9 while sitting on the work seat 28. - 特許庁The work seat 28 is provided with a fence (not shown) and a shelf for placing the seedling 9 before setting in order to ensure safety and good workability on the side and front (rear of the traveling vehicle body 10). It is

Next, the planting device 40 is configured to take out the seedling 9 held and transported by the seedling holder 22 in the seedling transporting device 20 near the field 100 (the ridge 102) and plant it in the field 100 (the ridge 102). device.

As shown in FIG. 2, etc., this planting device 40 incorporates a planting arm 42 to which a seedling picker 41 is attached, and a transmission mechanism 43 for transmitting power for operating the seedling picker 41 and the planting arm 42. and a planting transmission case 44 .

Among them, the seedling picking tool 41 has a pair of left and right pinching claws 41a and 41b which operate to pinch and grasp one end portion (such as the root of a vine or a stem) 9a of the seedling 9 which is held by the seedling holder 22 and protrudes from both the left and right sides. ( FIGS. 3 , 4 ) and is attached to the lower end of the planting arm 42 .
The planting arm 42 moves the seedling picking tool 41 along a predetermined motion trajectory (trajectory exemplified by a two-dot chain line T in FIG. 2 and the like) for taking out and planting the seedlings 9; This realizes the action of clamping and releasing the seedling picking tool 41 at the required time.

The transmission mechanism 43 is configured to convert rotational power obtained by being connected to the PTO shaft 19 provided at the rear portion 10b of the traveling vehicle body 10 into power for operating the seedling picker 41 and the planting arm 42, and transmit the power. .
The transmission mechanism 43 is housed inside a planting transmission case 44 having a box shape.

The transmission mechanism 43 operates an operating component such as a cam mechanism (not shown) that is driven by the power of the engine 14 transmitted from the PTO shaft 19, thereby performing operations such as clamping and releasing the seedling picker 41. ing.

In addition, the transmission mechanism 43 is provided with a swinging arm 45 that protrudes from the top of the planting transmission case 44 and swings. is adapted to move the planting arm 42 . The swing arm 45 swings in the front-rear direction D1, D2 around a planting operation shaft 46 arranged in the planting transmission case 44 so as to extend laterally.
The planting arm 42 is configured such that the planting operation shaft 46 and the swing arm 45 move along a predetermined locus of movement when the swing arm 45 is moved by swinging the lower end portion where the seedling picker 41 is arranged. A pair of unequal circular gears or eccentric gears are provided on the base, respectively, and the pair of unequal circular gears or eccentric gears are meshed to adjust the speed of the swing arm 45 when it swings, or a guide action by a guide (not shown). It adopts a configuration that allows it to move while receiving

1 and 2, the planting device 40 is arranged in a space where the planting arm 42 and the planting transmission case 44 exist between the rear part 10b of the traveling vehicle body 10 and the lower part of the seedling conveying device 20. It is

At this time, since the circling mechanism 21 of the seedling conveying device 20 is installed in a forward tilting posture, the lower end portion of the circulating mechanism 21 is closer to the rear portion 10b of the traveling vehicle body 10 than the upper end portion of the circulating mechanism 21. They are relatively separated and formed as a relatively wide empty space.
As a result, the planting device 40 can arrange the planting arm 42 and the planting transmission case 44 by effectively using the empty space without increasing the size of the transplanter 1 .

Further, in the planting device 40, a planting transmission case 44 is attached to the rear portion 10b of the traveling vehicle body 10 via an elevating link mechanism 18 so as to be vertically movable.

The lifting link mechanism 18 can move the planting transmission case 44 up and down by a desired distance in the vertical directions C1 and C2. It is used when necessary, such as when adjusting.
The elevating link mechanism 18 is composed of a link mechanism that receives power from an elevating drive device (not shown) installed on the traveling vehicle body 10, and is provided at a predetermined location such as the operator's seat 16 or the like. can be operated by the driver or operator.

The seedling conveying device 20 has a conveying section frame 25 that supports the circulation mechanism 21, as shown in FIG. 1 and the like. In addition, the transport section frame 25 is supported by a support frame 47 provided at the rear of the planting transmission case 44 .
As a result, when the planting transmission case 44 descends in the vertical directions C1 and C2 by the lifting link mechanism 18, the conveying section frame 25 moves vertically in the vertical directions C1 and C2 in conjunction therewith.

As shown in FIG. 3 and the like, the revolving mechanism 21 in the seedling conveying device 20 includes left and right rotors 32A and 32B rotatably provided on the left and right sides of the conveyer frame 25, and left and right rotors 32A and 32B. a holder conveying member 34 which is endlessly wound around the seedling holders 22 and arranged at a predetermined interval; are doing. FIG. 3 conceptually shows the revolving mechanism 21 as viewed obliquely from behind the seedling transplanter 1 .

Among these, the transport section frame 25 is formed as a frame having an appearance that is elongated in the left-right direction as a whole, and is constructed by combining various members such as a plate-like member, a square bar-like member, and a cover member. there is
The left and right rotors 32A and 32B support the endless holder conveying member 34 so as to rotate in a desired direction (H).

The rotors 32A and 32B in this embodiment are a pair of left and right rotors having a required diameter. As a result, the circulating path of the holder conveying member 34, which is wound around the rotating bodies 32A and 32B, becomes an elliptical shape (a shape obtained by adding semicircles to both short sides of a rectangle). It has path portions S1 and S2 that move linearly in the left-right direction at the upper end side and the lower end side of the .

Regarding the diameters of the rotors 32A and 32B, for example, the seedling holder 22 attached to the holder conveying member 34 is divided into a seedling supply section 23 that is formed by a path portion on the upper end side and a seedling delivery position 24 that is formed by a path portion on the lower end side. It is set to a diameter large enough to pass both
Further, as the rotating bodies 32A and 32B in this embodiment, since the holder conveying member 34 is configured in a chain form as will be described later, a predetermined number of projections (gear teeth) 323 to be inserted into the chain are formed. Sprocket is applied.

The holder conveying member 34 is an endless member formed by connecting a plurality of seedling holders 22 arranged at a predetermined interval M with a chain. The number of seedling holders 22, the arrangement interval M, and the like are appropriately selected according to the conditions such as the positions of the seedling pick-up positions 24 by the planting device 40 and the number thereof.

The seedling holder 22 is composed of a member having a concave groove with both ends open to hold a portion of one end 9a on the side where the seedling 9 is planted.
In addition, the seedling holder 22 has, for example, elastic members such as sponges and flocked members provided on the left and right side walls of the groove so as to face each other at the center of the groove.
As a result, the seedling holder 22 pushes the one end portion 9a of the seedling 9 into the gap between the opposing elastic members to hold the seedling 9 therebetween. is flexibly clamped and held so as to be able to be pulled out.

Further, the seedling holder 22 is arranged in a state in which the concave groove is orthogonal to the direction in which the holder conveying member 34 revolves and faces in the opposite direction (rear) to the rear portion 10b of the traveling vehicle body 10. It is attached to the transport member 34 .
As a result, as shown in FIG. 3 and the like, the seedling holder 22 maintains a posture in which the concave groove faces vertically in the path portions S1 and S2 where the upper end side and the lower end side move linearly in the horizontal direction. keep moving. In addition, the seedling holder 22 begins to gradually tilt in the path portion where the path portions S1 and S2 are moved in a semi-circular shape on the left and right sides connecting the path portions S1 and S2. move in a leaning position to the opposite side.

As shown in FIG. 3, the drive rotor 36 in this embodiment is a left and right driven rotor which is coaxially fixed to left and right rotary shafts 31A and 31B which rotatably support the rotors 32A and 32B. Rotating bodies 32A and 32B are rotationally driven by contacting a driving transmission member 35 endlessly wound around 33A and 33B to apply rotational power.
As a result, in the revolving mechanism 21, the rotational power from the driving transmission member 35 is transmitted to the rotating bodies 32A and 32B via the driving transmitting member 35 and the driven rotating bodies 33A and 33B. Orbit in direction H.

Here, if the rotating bodies 32A, 32B and the driven rotating bodies 33A, 33B are separate bodies, the rotating bodies 32A, 32B and the driven rotating bodies 33A, 33B are mutually rotated with respect to the left and right rotating shafts 31A, 31B provided rotatably on the transport section frame 25. It is provided in a fixed state. When the rotating bodies 32A and 32B and the driven rotating bodies 33A and 33B are configured as an integral body such as a two-stage gear, the left and right rotating shafts 31A and 31A fixed to the conveying section frame 25, 31B so as to be rotatable.
Further, the driven rotating bodies 33A and 33B are arranged closer to the rear part 10b of the traveling vehicle body 10 than the rotating bodies 32A and 32B, but the arrangement is not limited to this.

Further, since the drive transmission member 35 is configured as an endless chain-type member, the drive rotor 36 employs a sprocket having projections (gear teeth) (not shown) formed thereon. Further, as shown in FIG. 2, for example, the drive rotor 36 in the present embodiment pushes up from below a portion passing below the drive transmission member 35 at an intermediate position between the left and right driven rotors 33A and 33B. and engages with the chain-type drive transmission member 35 .

3, the drive rotor 36 rotates around a rotation shaft 37. As shown in FIG. and the universal joint (to the rotating shaft 37), rotational power is transmitted. Further, the transfer transmission shaft 48 is connected to an output shaft (not shown) of the transmission mechanism 43 inside the planting transmission case 44 by a universal joint. The transport transmission shaft 48 in this embodiment is provided so as to be housed inside the support frame 47 .

The revolving mechanism 21 is configured such that the holder conveying member 34 is intermittently driven by repeating stop and movement at predetermined intervals.
This intermittent drive can be performed, for example, by providing an intermittent clutch (not shown) for switching between connection and disconnection of power transmission to the drive rotor 36 or the transport transmission shaft 48 . Further, this intermittent drive stops the movement when the seedling holder 22 on the holder conveying member 34 reaches the seedling pick-up position 24 by the planting device 40 by circular movement, and the seedling 9 at the seedling pick-up position 24 is stopped. This is repeated at intervals such that the movement is resumed when the removal is completed.

In the seedling conveying device 20, as shown in FIG. 2, the conveying portion frame 25 of the circulating mechanism 21 changes the inclination angle α (FIGS. 6 and 7) of the forward tilting posture to the support frame 47 of the planting transmission case 44. Therefore, it is supported so as to be rotatable in the forward and backward directions D1 and D2 about the rotating shaft 27 . 6 and 7, the planting device 40 is configured to change the planting posture of the seedlings 9 with respect to the field 100 by changing the inclination angle α of the seedling conveying device 20. FIG.
The transport unit frame 25 can be manually rotated, for example, in the front and rear directions D1 and D2, and is fixed at a desired position by fixing means (not shown). Even if the rotation of the conveying section frame 25 is performed manually as described above, a mechanism may be added to rotate the crank handle to extend and retract an inclination adjusting rod that tilts the conveying section frame 25. Further, it is of course possible to configure such that the rotation is automatically performed by a driving device for rotation.

Moreover, the planting apparatus 40 in this embodiment is configured as two-row planting.
For this reason, as shown in FIG. 4, the planting device 40 includes two sets of seedling pickers 41A and 41B, planting arms 42A and 42B, and rocking arms 42A and 42B, which are arranged in a single planting transmission case 44 with a gap left and right. Arms 45A and 45B are provided. In addition, one shared type transmission mechanism 43 is arranged in the planting transmission case 44 . The planting transmission case 44 may be configured to apply two sets of the planting transmission case 44 for single-row planting independently arranged on the left and right sides.

In addition, as shown in FIG. 3, the seedling conveying device 20 has a path portion S2 that moves linearly in the left-right direction on the lower end side of the revolving mechanism 21 as the seedling extraction possible range 26 of the planting device 40. As shown in FIG. 4, the planting device 40 moves the seedling picker 41, the planting arm 42 and the swinging arm 45 integrally in the right and left direction within the range 26 where the seedlings can be taken out by a required amount. The seedling extraction position 24 can be changed by pressing.

As shown in FIG. 4, the planting device 40 of this embodiment employs a structure in which a swing arm 45 is movably attached to the planting operation shaft 46, and the swing arm 45 is attached to the planting operation shaft 46. The seedling picking tool 41 and the planting arm 42 can also move in the horizontal direction integrally by sliding against them. Further, the swing arm 45 can move after releasing the fixing means of the positioning guide member 49 which is fixed to the upper part of the planting transmission case 44 by a fixing means such as bolting which can be released. there is The planting operation shaft 46 is arranged inside the planting transmission case 44 so as to have a positional relationship parallel to the linearly moving path portion S<b>2 of the circulation mechanism 21 .

In the seedling transplanter 1, since the path portion S2 is adopted as the seedling removal possible range 26, the seedling removal position 24 is adjusted by moving the seedling picking tool 41, the planting arm 42 and the swing arm 45 in the right and left directions. , the height of the seedling pick-up position 24 does not relatively change, so that the planting depth of the seedlings 9 is kept almost constant, and the planting accuracy can be ensured.

In addition, as shown in FIGS. 1 and 2, the planting device 40 is provided with a planting transmission case 44 with a suppressing device 50 that impacts and suppresses the surface of the field 100 (ridge 102) after seedlings have been planted. .
In the pressing device 50, a pressing tool 51 such as a pressing ring having a cylindrical shape is rotatably attached to the end of a supporting arm 53 extending in connection with a movable shaft of a pressing driving device 52 provided at the bottom of the planting transmission case 44. installed. For the support arm 53, for the sake of convenience, one straight arm is shown as an example, but it is not limited to this configuration.

In this crushing device 50, a crushing driving device 52 interlocks with the operation of the planting arm 42 to vertically move the support arm 53 about the movable shaft in the directions indicated by arrows P1 and P2. As a result, the crusher 51 at the end of the support arm 53 strikes the field after planting the seedlings at a position behind the seedling pick-up position 24 of the planting device 40 to remove the soil covering the one end 9a of the seedlings 9. After lightly pressing and hardening with the impact, it rises and waits until the planting of the next seedling is completed.

The suppression device 50 may be configured such that the suppression drive device 52 moves integrally in the lateral direction in the planting transmission case 44 in the same manner as the swing arm 45, the planting arm 42, and the like.
As a result, even when the seedling pick-up position 24 in the planting device 40 is adjusted by moving in the left and right directions, the suppressing device 50 also moves together, and the seedlings are planted substantially in line with the adjusted seedling pick-up position 24. The field scene at the position can be suppressed reliably.

Next, operation of the seedling transplanter 1 will be described.

First, since the seedling transplanter 1 is a riding-type transplanter, when a seedling planting operation is performed in the field 100, a driver sitting on the seat 16a of the operator's seat 16 performs traveling operation in the field 100 to perform the work. A worker sitting on the seat 28 is used to supply the seedlings 9 in the seedling supply section 23 of the seedling conveying device 20 .

In this case, as shown in FIGS. 1 and 2, the seedling transplanter 1 is provided in a state where the circling mechanism 21 in the seedling conveying device 20 is tilted forward. The space between the seat 28) and the upper end of the revolving mechanism 21 in the seedling conveying device 20 in the front-rear direction is relatively small and close to each other. Therefore, in the seedling transplanter 1, even when the operator sits on the work seat 28 and is in front of the seedling conveying device 20, the seedlings 9 can be easily set in the seedling holder 22 of the seedling conveying device 20 and supplied. It can be carried out.

In the seedling transplanter 1, the lifting link mechanism 18 is actuated so as to match the height of the ridge 102 and the planting depth of the seedlings 9, and the planting transmission case 44 of the planting device 40 is moved to the traveling vehicle body 10 by a required amount. Raise or lower only. Thereby, it will be in the state which can perform planting work.

Subsequently, since the seedling transplanter 1 is capable of planting two rows, the seedling transplanter 1 starts traveling while straddling the two rows of ridges 102 for planting seedlings with the left and right front wheels 12 and the rear wheels 13. The transport device 20 and the planting device 40 are started. Thus, the planting work by the seedling transplanter 1 is started.

At this time, in the seedling conveying device 20, rotational power is transmitted from the transmission mechanism 43 of the planting transmission case 44 to the drive rotor 36 of the revolving mechanism 21 through the conveyance transmission shaft 48 in the direction indicated by the arrow F1.
As a result, in the revolving mechanism 21, the drive transmission member 35 is rotated in the direction indicated by the arrow G1 by the rotational driving of the drive rotor 36, so that the left and right driven rotors 33A and 33B around which the drive transmission member 35 is wound are rotated. The left and right rotating bodies 32A and 32B rotate in the same direction through the rotating shafts 31A and 31B, and finally the holder conveying member 34, which is wound around the rotating bodies 32A and 32B, rotates as indicated by an arrow H1. Rotate to move in a direction. As a result, in the revolving mechanism 21, the plurality of seedling holders 22 attached to the holder conveying member 34 at intervals M are revolved and moved in the direction indicated by the arrow H1.

Further, in the seedling conveying device 20, the drive rotor 36 of the revolving mechanism 21 is intermittently driven at predetermined intervals, so that the holder conveying member 34 is rotated intermittently by repeating stop and movement at predetermined intervals. do. As a result, the seedling holders 22 are intermittently moved similarly to the holder conveying member 34 .

For this reason, in the seedling supply unit 23 of the seedling conveying device 20, the plurality of seedling holders 22 are intermittently moved in the direction of the arrow H1 along the path portion S1 that moves linearly in the left and right directions at the upper end of the revolving mechanism 21. will move to
In the seedling supply unit 23, an operator sitting on the work seat 28 places the seedling 9 with one end 9a such as the root portion facing upward as illustrated by the two-dot chain line in FIGS. The seedlings are set in the seedling holder 22 in a protruded state and supplied. At this time, the seedling 9 set in the seedling holder 22 has its other end portion 9b where the leaves, stems, etc. are located from the lower end portion of the seedling holder 22, as exemplified by the two-dot chain line in FIGS. It is kept hanging downwards.

Incidentally, a protective cover plate (not shown) for covering the inside of the circulation path of the circulation mechanism 21 from the outside is attached to the transportation section frame 25 of the seedling transportation device 20 . As a result, the other end 9b of the seedling 9 present inside the circulation path is protected from being damaged by unnecessary contact with the circulation mechanism 21, entanglement, or the like during the transportation process.

Subsequently, in the seedling conveying device 20, the seedling 9 set in the seedling holder 22 is conveyed with the intermittent movement of the holder conveying member 34 in the direction of the arrow H1, and after passing through the semicircular path portion, It is conveyed so as to enter a path portion S2 that moves linearly in the left-right direction at the lower end of the circulation mechanism 21 .
As shown in FIG. 3, the seedlings 9 set in the seedling holder 22 and transported enter the path portion S2 on the lower end side of the circulating mechanism 21 by the time that one end 9a such as the root of the seedlings 9 reaches the seedling holder. It is automatically changed to a state in which it faces downward from the lower end of the seedling supply part 22 and is partially protruded, and the state when the seedling supply part 23 is set is turned upside down.
The seedling conveying device 20 stops when the seedling holder 22 in which the seedling 9 is set enters the path portion S2 and reaches the seedling picking-up position 24A on the left side of the planting device 40 or the seedling picking-up position 24B on the right side of the planting device 40. .

In the planting device 40 , the transmission mechanism 43 is driven to operate the swing arm 45 , the planting arm 42 and the seedling picker 41 at the timing when the holder conveying member 34 and the seedling holder 22 stop. As a result, the seedling removal operation and the planting operation are performed as follows.

That is, in the planting device 40, the seedling picker 41 is moved along the motion locus indicated by the two-dot chain line T in FIG. 2 by the operation of the planting arm .
At this time, the seedling picker 41 is first moved to pass through the lower position of the seedling holder 22 where the clamping claws 41a and 41b (FIGS. 3 and 4) are stopped, and is set in the seedling holder 22. One end portion 9a of the seedling 9 protruding downward is clamped and held from the left and right, and then pulled out from the groove of the seedling holder 22.例文帳に追加As a result, the seedlings 9 set in the seedling holder 22 and conveyed are pulled out from the groove of the seedling holder 22 and removed.
Subsequently, the seedling picking tool 41 moves toward the ridge 102 while the seedling 9 is sandwiched between the clamping claws 41a and 41b so as to be temporarily stabbed into the ground. As a result, the one end portion 9a of the seedling 9 held between the holding claws 41a and 41b is inserted into the ground of the ridge 102, and then the holding of the holding claws 41a and 41b is released, so that the ridge 102 is removed. be planted. After the planting of the seedlings 9 is completed, the seedling picking tool 41 moves out of the ground of the ridge 102 and returns to the home position.

At this time, the suppression device 50 provided at the bottom of the planting transmission case 44 of the planting device 40 moves up and down in conjunction with the operation of the planting arm 42 .
As a result, the crushing tool 51 of the crushing device 50 descends and collides with the surface portion of the ridge 102 on which the seedlings 9 are planted, and crushes the soil on the surface portion. As a result of this suppression, the planted seedlings 9 are protected from being affected by the outside air and being harmed by birds and animals, and an environment for favorable growth is prepared.

In particular, in this seedling transplanter 1, when the clamping claws 41a and 41b of the seedling picking tool 41 in the planting device 40 remove the seedling 9 from the seedling holder 22, the seedling conveying device 20 stops conveying, so the seedling 9 is reliably picked out. In addition, it is possible to smoothly transition to the subsequent planting operation, and as a result, the occurrence of poor planting is substantially prevented. In addition, in the removing operation of the seedling 9 at this time, the seedling 9 is not pulled out from the seedling holder 22 while being pulled in the conveying direction (circling direction H1). , there is no risk of injury.

When the planting device 40 completes the operation of picking out the seedlings 9 from the seedling holders 22 , the seedling conveying device 20 restarts the circular movement of the circular mechanism 21 . Further, the circular movement of the circular mechanism 21 stops again when the succeeding seedling holder 22 in which the seedling 9 is set reaches the left and right seedling extraction positions 24A and 24B in the planting device 40 .
On the other hand, the empty seedling holders 22 from which the seedlings 9 have been removed are intermittently sequentially conveyed so as to be returned to the seedling supply section 23 by the intermittently moving holder conveying member 34, where they are replaced by the operator. A seedling 9 is set.

After that, the planting operation of the seedlings 9 is continued by repeating the above-described operations in the same manner. It should be noted that the planting operation by the seedling transplanter 1 is finished once when the terminal end of the ridge 102 is reached. Also, if there is a next ridge 102, the planting work is resumed by moving to the place where the ridge 102 is located.

In the seedling transplanter 1, as illustrated in FIG. 6A, the conveying portion frame 25 of the seedling conveying device 20 is rotated in the direction indicated by the arrow E2 (FIG. 2) (raising direction). The tilt angle α of the forward tilting posture of the transport section frame 25 can be set to a relatively small tilt angle α1.

In this case, as illustrated in FIG. 6(B), the seedling holder 22 in the revolving mechanism 21 is conveyed to the seedling extraction position 24 by the planting device 40 in a state slightly inclined with respect to the ridge 102 of the field. Become. As a result, the seedling 9 held in the seedling holder 22 is pinched by the seedling picker 41 of the planting device 40 while being held in the seedling holder 22 and taken out, and then tilted slightly toward the ridge 102.例文帳に追加Planted by moving to draw a trajectory of degree.
The planting posture of the seedling 9 at this time is a planting posture that is slightly inclined with respect to the ridge 102, as illustrated in FIG. 6(B). Further, as for the motion trajectory T of the seedling picker 41 by the planting arm 42 at this time, the motion trajectory T1 adapted to the inclination angle α1 is applied as illustrated in FIG. 6(A).
Therefore, the seedling 9 at this time becomes a so-called obliquely planted seedling 9N that is planted in the field 100 in a slightly inclined posture.

Further, in the seedling transplanter 1, as illustrated in FIG. 7A, the conveying unit frame 25 of the seedling conveying device 20 is rotated in the direction indicated by the arrow E1 (FIG. 2) (the direction of tilting forward). The tilt angle α of the forward tilting posture of the transport section frame 25 can be set to a relatively large tilt angle α2 (>α1).

In this case, as exemplified in FIG. 7B, the seedling holder 22 in the revolving mechanism 21 is transported to the seedling picking position 24 by the planting device 40 in a state in which the seedling holder 22 is tilted relatively greatly with respect to the ridge 102 of the field. become. As a result, the seedlings 9 held in the seedling holder 22 are pinched by the seedling picker 41 of the planting device 40 while being held in the seedling holder 22 and taken out, and then the seedlings 9 are taken out with respect to the ridge 102. It can be planted by moving at a tilted degree.
The planting posture of the seedlings 9 at this time is, as illustrated in FIG. Further, as an operation locus T of the seedling picking tool 41 by the planting arm 42 at this time, as illustrated in FIG. 7A, an operation locus T2 adapted to the inclination angle α2 is applied.
Therefore, the seedling 9 at this time is a so-called ship bottom planted seedling 9L, which is planted in a posture greatly inclined with respect to the farm field 100 .

Thus, with the seedling transplanter 1 according to this embodiment, it is possible to easily plant seedlings in a plurality of different planting postures using a single transplanter. As a result, for example, in order to change the planting posture of seedlings in one transplanter, there is no need to perform complicated work such as replacement or recombination of parts in the seedling conveying device 20 or the planting device 40 . In addition, there is no need to separately prepare a seedling transplanter dedicated to oblique planting and a seedling transplanter dedicated to planting on the bottom of a ship.

Furthermore, in the seedling transplanter 1, the adjustment of the seedling extraction position 24 in the planting device 40 can be easily performed by moving within the seedling extraction possible range 26, as illustrated in FIG. As a result, the seedling transplanter 1 can reliably plant the seedlings 9 at positions suitable for planting. In addition, when planting a plurality of rows such as two-row planting as in the planting device 40 in this embodiment, the left and right spacing (row spacing) between the planting positions can be set according to the working conditions and growth conditions. It is possible to grow the seedling 9 better.

[Modification]
The present invention is not limited to the configurations exemplified in the above embodiments, and includes, for example, modifications shown below.

The revolving mechanism 21 in the seedling conveying device 20 can adopt a configuration that can switch the revolving direction H.
When this configuration is adopted, it is possible to switch the holder conveying member 34 of the circulating mechanism 21 and the seedling holder 22 in the direction indicated by the arrow H2 opposite to the direction indicated by the arrow H1 in the above embodiment so as to circulate. In order to rotate the rotation mechanism 21 in the direction indicated by the arrow H2 in the above-described embodiment, the drive rotor 36 should be rotationally driven in the direction indicated by the arrow F2. As a result, in the revolving mechanism 21, the drive transmission member 35 rotates in the direction indicated by the arrow G2, so that the holder conveying member 34 revolves in the direction indicated by the arrow H2.

Incidentally, in the case of rotating in the direction indicated by the arrow H1 illustrated in FIG. 3, it is possible to improve the working efficiency of a right-handed worker. On the other hand, when it is rotated in the direction indicated by the arrow H2, it is possible to improve the working efficiency of a left-handed worker.
Means for switching the circulating direction H include changing the bevel gear (bevel gear), replacing the gearbox, and using a motor that can rotate forward and backward when an electric motor is used as the driving source of the circulating mechanism 21. It is possible to adopt the means of

In the above-described embodiment, in order to apply rotational power to the holder conveying member 34 in the revolving mechanism 21 , a configuration may be adopted in which the driving rotating body 36 is brought into contact with a part of the holder conveying member 34 to apply the rotational power.
Further, as the holder conveying member 34 and the drive transmission member 35, other members such as a toothed belt may be applied instead of the chain type. When using a toothed belt, a toothed pulley or the like may be used as the rotating body 32 and the driven rotating body 33 .

Four or more rotors 32 that rotationally support the holder conveying member 34 in the circulation mechanism 21 may be used. In this case, the circular path has a shape other than an oval shape, but even in this case, the shape of the circular path becomes a shape having path portions S1 and S2 that move linearly in the left-right direction at the upper end and the lower end. It is preferable to configure

As the planting device 40, a planting device for single-row planting may be applied instead of two-row planting. Moreover, as illustrated in FIG. 5, a four-row planting device having four seedling extraction positions 24A, 24B, 24C, and 24D may be applied.
When changing the number of rows to be planted, for example, the phase of the revolving movement in the revolving mechanism 21 may be adjusted, if necessary.

The work seat 28 in the seedling transplanter 1 of the above-described embodiment, if there is an empty space between the seat 16a of the operator's seat 16 and the upper part of the seedling transport device 20, from the viewpoint of maintaining a good left-right balance of the machine body. , should be placed in between. In the case of the planting device 40 for two-row planting, for example, the work seat 28 may be arranged at an intermediate position between the left and right seedling picking positions 24A and 24B.
In addition, when applying the planting device 40 for four-row planting, the work seat 28 is placed on the left and right sides of the seat 16a of the cockpit 16 as illustrated in FIG. The left and right work seats 28A and 28B should be installed on the right side. In this case, two workers are required to work while sitting on the left and right work seats 28A and 28B, respectively.

In addition, the transplanter of the present invention is not limited to the (perfectly) riding-type seedling transplanting machine 1 illustrated in the above embodiment, and may be a non-riding-type transplanter. This non-riding type (walking type) transplanter may be a fully ambulatory transplanter without both the operator's seat 16 and the operator's seat 28, or a semi-ambulatory transplanter with an operator's seat 16 but no operator's seat 28. can be machined.

INDUSTRIAL APPLICABILITY The present invention is useful as a transplanter for transplanting vine-shaped seedlings, but can also be applied as a transplanter for transplanting seedlings of other forms.

1 … seedling transplanter (transplanter)
10... Traveling vehicle body 20... Seedling conveying device 21... Revolving mechanism 22... Seedling holder 23... Seedling supply unit 25... Conveying unit frame 26... Seedling extraction possible range 31A, 31B... Left and right rotating shafts 32A, 32B... Left and right rotating bodies 34 Holder conveying member 35 Driving transmission member 36 Driving rotating body 40 Planting device 41 Seedling picker 42 Planting arm 44 Planting transmission case 47 Support frame 48 Transportation transmission shaft 50 Suppression device S1 At the upper end side Path portion S2 that moves linearly in the horizontal direction ... Path portion α that moves linearly in the horizontal direction at the lower end side Angle of inclination H Direction of rotation

Claims (7)

a traveling vehicle body (10) capable of traveling in a field;
Seedlings are set in a plurality of seedling holders (22) attached at intervals to a revolving mechanism (21) which is provided at the rear of the traveling vehicle body (10) and which revolves so as to approach and pass through the field, and are conveyed. a seedling conveying device (20);
a planting device (40) provided at the rear of the traveling vehicle body (10) for taking out the seedlings held by the seedling holder (22) of the seedling conveying device (20) near the field and planting the seedlings in the field;
The planting device (40) includes a planting arm (42) having a seedling picker (41) attached to its lower end, and a mechanism ( 43) and a planted transmission case (44),
The planting arm (42) and the planting transmission case (44) are arranged in the space between the rear part of the traveling vehicle body (10) and the lower part of the seedling conveying device (20), and the planting transmission case (44) is attached to the rear part of the traveling vehicle body (10) via an elevating link mechanism (18) so as to be able to ascend and descend,
The seedling conveying device (20) is provided to be supported by the conveying unit frame (25) in a state in which the circulating route of the circulating mechanism (21) is in a forward tilting posture, and the route is circulated in the forward tilting posture. Among them, the path portion on the upper end side is configured as a seedling supply section (23) for setting and supplying seedlings to the seedling holder (22), and the conveying section frame (25) is provided at the rear of the planting transmission case (44). Transplanter, characterized in that it is supported on a support frame (47) provided . The revolving mechanism (21) has path portions (S1, S2) that move linearly in the left-right direction at the upper end side and the lower end side, revolves, and intermittently drives by repeating stop and movement at predetermined intervals. The transplanter according to claim 1, characterized in that: The seedling conveying device (20) has a conveying section frame (25) that rotates forward and backward on a support frame (47) of the planting transmission case (44) in order to change the tilt angle (α) of the forward tilting posture. movably supported,
3. The planting device (40) according to claim 1 or 2, characterized in that the planting posture of the seedlings in the field is changed by changing the angle of inclination (α) of the seedling conveying device (20). transplant machine. The winding mechanism (21) has a path portion (S2) that moves linearly on the lower end side, and uses the winding portion (S2) as a seedling extraction possible range (26) of the planting device (40). is composed of
The transplantation according to any one of claims 1 to 3 , characterized in that the planting device (40) is moved within the range (26) from which the seedling can be taken out to change the position from which the seedling is taken out . machine. 5. The transplanter according to any one of claims 1 to 4, wherein the circulating mechanism (21) is configured such that the circulating direction (H) can be switched . The planting transmission case (44) is provided with a suppressing device (50) for impacting and suppressing the field after planting the seedlings, which moves up and down in conjunction with the operation of the planting arm (42). 6. The transplanter according to any one of claims 1 to 5. The circling mechanism (21) of the seedling conveying device (20) is mounted on both the left and right sides of the conveying section frame (25).
Left and right rotary bodies (32A, 32B) rotatably provided on the side portions, and the plurality of seedling holders (22) are endlessly wound around the left and right rotary bodies (32A, 32B), and the plurality of seedling holders (22) are arranged in predetermined positions. It has a holder conveying member (34) arranged at an interval, and a drive rotating body (36) that imparts rotational power to the left and right rotating bodies (32A, 32B) or the holder conveying member (34). ,
7. Any one of claims 1 to 6, wherein the planting transmission case (44) is provided with a conveying transmission shaft (48) that is connected to the driving rotor (36) to transmit rotational power. 1. Transplanter according to paragraph.

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