JP2002084825A - Fertilizing apparatus for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact mechanism in which a fertilizer-feeding roll of a fertilizing apparatus is driven under interlocking with seedling planting motion of a seedling planting mechanism. SOLUTION: The first and the second single-rotational direction clutches 31, 32 are fixed on the driving shaft 22 of the fertilizer-feeding roll. The rotary power of a rotary case 4a of a seedling planting mechanism is converted into reciprocating power by a power-output device 38 and an output rod 39, and the resulting power is transmitted to an input-side rotor 31a of the first single- rotational direction clutch 31. The rotary power of the input-side rotor 31a is transmitted to the input-side rotor 32a of the second single-rotational direction clutch 32 by an input-side rod 35, an intermediate swinging link 34 and an output-side rod 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer for a rice transplanter, which is configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction.

[0002]

2. Description of the Related Art In the above-mentioned fertilizer application system for rice transplanters, conventionally,
For example, as shown in Japanese Patent Application Laid-Open No. 3-19612, a pair of one-turn clutches is attached to a drive shaft of a feeding roll, and a drive arm of one first one-turn clutch and a rotation of the drive arm of a seedling planting mechanism. A push / pull rod is attached to a rotating bracket provided so as to rotate with the case, and an arm extending from the middle of the push / pull rod is connected to the other drive arm of the second rotation direction clutch by a rod. When the planting mechanism is driven, the rotating power drives the drive arm of the first one-rotational direction clutch and the drive arm of the second one-rotational direction clutch alternately to the roll drive side to drive the delivery roll of the fertilizer delivery device. Some of them were driven and could be fertilized in conjunction with the seedling planting movement of the seedling planting mechanism.

Further, as shown in the above-mentioned publication, an arm is rotatably extended from the middle of the push / pull rod, and an arm for attaching a rod to be attached between the arm and the drive arm of the first first rotation direction clutch. By changing the length of the rod connecting the arm to the drive arm of the second one-rotation direction clutch by changing the length of the rod by a turnbuckle mechanism, the drive swing range of the drive arm of the second one-rotation direction clutch is changed. Can be set to be large or small with respect to the drive swing range of the drive arm of the first first rotation direction clutch, and the rotation of the payout roll driven in conjunction with the seedling planting movement of the seedling planting mechanism. Some were able to change the corner.

[0004]

In the case where the above-mentioned conventional feed-out driving technique is adopted, a driving arm as an input-side rotating body of a one-direction clutch and an interlocking member connected to this driving arm are provided around a driving shaft. It was dispersed over a wide range, and the feeding drive mechanism was large.

When the conventional roll drive angle changing technique is adopted, only the angle driven by one of the pair of one-turn clutches can be changed, and the adjustment range is relatively narrow. Furthermore, there is a problem that the adjustment can be performed only at a constant adjustment pitch, and that the adjustment can only be performed with a large change in the amount of fertilizer to be applied.

An object of the present invention is to obtain a relatively compact structure while being driven by the rotating power from a seedling planting mechanism, to adjust the roll drive angle over a relatively wide range, and to quickly set a desired angle. An object of the present invention is to provide a fertilizing device for a rice transplanter that is easily adjusted.

[0007]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[0008] [Structure] In a fertilizer application device for a rice transplanter configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction, a first and a second fertilizer attached to a drive shaft of the feed roll. A power conversion mechanism that includes a directional rotation clutch, converts the rotational power of the seedling planting mechanism into reciprocating power and outputs the power, and an output rod is connected to an input-side rotator of the first one-way rotational clutch; The input-side rotating bodies of the first one-way rotating clutch and the second one-way rotating clutch are linked via an intermediate swing link, and the input-side rotating body of the first one-way rotating clutch is driven to the non-roll-drive side. In this case, the input-side rotating body of the second one-way rotating clutch drives the input-side rotating body to the roll drive side by the power of the input-side rotating body, and the input-side rotating body of the first one-way rotating clutch drives the roll drive. When driven to the side they are, are provided with a link mechanism for driving by the power of the input side rotating member on the input side rotating body of the second one-way rotational clutch to the roll non-driving side.

[Operation] The revolving power of the seedling planting mechanism is converted into reciprocating power by the power conversion mechanism, and one of the reciprocating power is transmitted to the input side rotating body of the first one-direction clutch by the output rod. Then, the input-side rotating body is driven to the roll driving side, and the rotating shaft of the input-side rotating body drives the drive shaft to drive the feeding roll. At this time, the rotational power of the input-side rotating body is transmitted to the input-side rotating body of the second one-direction clutch by the link mechanism, and the input-side rotating body is driven to the non-roll-drive side to be in the standby position for driving the roll. Return to When the other power of the reciprocating power converted by the power conversion mechanism is transmitted to the input side rotary body of the first first rotation direction clutch by the output rod, the input side rotary body is driven to the roll non-drive side to perform the roll drive. Return to standby position for At this time, the rotation of the input-side rotating body is transmitted to the input-side rotating body of the second one-direction clutch by the link mechanism, and the input-side rotating body is driven to the roll drive side, and the rotation of the input-side rotating body is rotated. The drive shaft is driven by the power to drive the payout roll. The link mechanism is provided with an intermediate swinging link for interlocking the input rotary members of the one-rotation direction clutch, so that the input rotary member of the one-rotation direction clutch and the link mechanism can be compared around the drive shaft. The dispensing roll can be driven in one rotation direction by the rotating power of the seedling planting mechanism while being arranged in a narrow range.

[Effect] Therefore, while the fertilizer drive-out device can be driven by the rotating power of the seedling planting mechanism and the fertilizer can be applied in conjunction with the seedling planting movement of the seedling planting mechanism, the input side of the one-way clutch is provided. The compactness is achieved so that the rotating body and the link mechanism are located in a relatively narrow range around the drive shaft, and the overall size of the apparatus can be reduced.

The construction, operation and effect of the invention according to claim 2 are as follows.

[Structure] In a fertilizer applicator for a rice transplanter configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction, first and second fertilizers attached to a drive shaft of the feed roll. A power conversion mechanism that includes a directional rotation clutch, converts the rotational power of the seedling planting mechanism into reciprocating power and outputs the power, and an output rod is connected to an input-side rotator of the first one-way rotational clutch; When the input-side rotating bodies of the first one-way rotating clutch and the second one-way rotating clutch are linked with each other, and the input-side rotating body of the first one-way rotating clutch is driven to the non-roll-drive side, this input side is The input-side rotating body of the second one-way rotating clutch is driven to the roll drive side by the power of the rotating body, and
When the input side rotary body of the first one-way rotary clutch is driven to the roll drive side, the power of the input side rotary body drives the input side rotary body of the second one-way rotary clutch to the roll non-drive side. A rotation angle adjusting mechanism for changing a rotation angle of an input-side rotator of the first one-way rotation clutch as the output rod operates a reference stroke.

[Operation] The reciprocating power of the seedling planting mechanism is converted into reciprocating power by the power conversion mechanism, and one of the reciprocating power is transmitted to the input side rotating body of the first one-direction clutch by the output rod. Then, the input-side rotating body is driven to the roll driving side, and the rotating shaft of the input-side rotating body drives the drive shaft to drive the feeding roll. At this time, the rotational power of the input-side rotating body is transmitted to the input-side rotating body of the second one-direction clutch by the link mechanism, and the input-side rotating body is driven to the non-roll-drive side to be in the standby position for driving the roll. Return to When the other power of the reciprocating power converted by the power conversion mechanism is transmitted to the input side rotary body of the first first rotation direction clutch by the output rod, the input side rotary body is driven to the roll non-drive side to perform the roll drive. Return to standby position for At this time, the rotation of the input-side rotating body is transmitted to the input-side rotating body of the second one-direction clutch by the link mechanism, and the input-side rotating body is driven to the roll drive side, and the rotation of the input-side rotating body is rotated. The drive shaft is driven by the power to drive the payout roll.

When the rotation angle adjusting mechanism is operated, the rotation angle of the input-side rotating body of the first one-direction clutch, which is driven by operating the output rod of the power conversion mechanism by the reference stroke, changes. The rotation angle of the drive shaft driven by the rotating power of the rotating body changes, and the rotation of the input rotating body of the second one-rotation direction clutch driven by the rotating power of the input rotating body of the first one-direction clutch. The angle changes, the rotation angle of the drive shaft driven by the rotational power of the input-side rotator changes, and the rotation angle of the pay-out roll driven by the first one rotation direction clutch also changes in the second rotation direction. The rotation angle of the payout roll driven by the clutch also changes.

[Effect] Therefore, while the fertilizer feeding roll can be driven by the turning force of the seedling planting mechanism, the fertilizer can be applied in conjunction with the seedling planting movement of the seedling planting mechanism.
By operating the rotation angle adjusting mechanism, the angle at which the payout roll is driven by the first first rotation direction clutch also becomes
The drive angle of the feeding roll can be adjusted over a wide range so that the angle driven by the second first rotation direction clutch also changes, and it becomes easy to adjust the amount of fertilizer sprayed over the entire field along with the seedling planting operation.

The configuration, operation and effect of the invention according to claim 3 are as follows.

[Structure] In a fertilizer applicator for a rice transplanter configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction, a first and a second fertilizer attached to a drive shaft of the feed roll. A power conversion mechanism that includes a directional rotation clutch, converts the rotational power of the seedling planting mechanism into reciprocating power and outputs the power, and an output rod is connected to an input-side rotator of the first one-way rotational clutch; When the input-side rotating bodies of the first one-way rotating clutch and the second one-way rotating clutch are linked with each other, and the input-side rotating body of the first one-way rotating clutch is driven to the non-roll-drive side, this input side is The input-side rotating body of the second one-way rotating clutch is driven to the roll drive side by the power of the rotating body, and
When the input side rotary body of the first one-way rotary clutch is driven to the roll drive side, the power of the input side rotary body drives the input side rotary body of the second one-way rotary clutch to the roll non-drive side. A fertilization control mechanism that includes a link mechanism, and adjusts a fertilization amount by changing an angle at which an input-side rotating body of the first one-way rotation clutch rotates as the seedling-planting mechanism performs a seedling-planting movement of a reference stroke. It is prepared.

[Operation] The turning power of the seedling planting mechanism is converted into reciprocating power by the power conversion mechanism, and one of the reciprocating power is transmitted to the input side rotating body of the first one-direction clutch by the output rod. Then, the input-side rotating body is driven to the roll driving side, and the rotating shaft of the input-side rotating body drives the drive shaft to drive the feeding roll. At this time, the rotational power of the input-side rotating body is transmitted to the input-side rotating body of the second one-direction clutch by the link mechanism, and the input-side rotating body is driven to the non-roll-drive side to be in the standby position for driving the roll. Return to When the other power of the reciprocating power converted by the power conversion mechanism is transmitted to the input side rotary body of the first first rotation direction clutch by the output rod, the input side rotary body is driven to the roll non-drive side to perform the roll drive. Return to standby position for At this time, the rotation of the input-side rotating body is transmitted to the input-side rotating body of the second one-direction clutch by the link mechanism, and the input-side rotating body is driven to the roll drive side, and the rotation of the input-side rotating body is rotated. The drive shaft is driven by the power to drive the payout roll.

When the fertilizer application adjusting mechanism is operated, the rotation angle of the input-side rotating body of the first one-direction clutch, which is driven as the seedling-planting mechanism performs the seedling-planting movement of the reference stroke, changes. When the rotation angle of the input-side rotator of the first one-rotation-direction clutch changes, the rotation angle of the input-side rotator of the second one-rotation-direction clutch driven by the rotational power of the input-side rotator also changes, and the rotation angle changes. By operating the adjustment mechanism, the first
Both the rotation angle of the delivery roll driven by the one rotation direction clutch and the rotation angle of the delivery roll driven by the second one rotation direction clutch change, and the seedling planting mechanism performs the seedling planting movement of the reference stroke. Accordingly, the amount of fertilizer supplied by the feeding roll changes.

[Effect] Therefore, the fertilizer feeding roll can be driven by the rotating force of the seedling planting mechanism, and the fertilizer can be applied in conjunction with the seedling planting movement of the seedling planting mechanism.
By operating the fertilizer application mechanism, the driving angle of the feeding roll is adjusted over a wide range so that the angle driven by the first turning clutch and the angle driven by the second turning clutch change. As a result, it becomes easier to control the amount of fertilizer sprayed over the entire field along with the seedling planting operation.

The structure, operation and effect of the invention according to claim 4 are as follows.

[Structure] A fertilizer applicator for a rice transplanter configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction, comprising a one-way rotating clutch mounted on a drive shaft of the feed roll. A power conversion mechanism that converts the rotational power of the seedling planting mechanism into reciprocating power and transmits the reciprocating power to the input-side rotating body of the one-way rotation clutch. A rotation angle coarse adjustment mechanism for changing an angle of rotation of the input-side rotating body of the one-way rotation clutch at a large adjustment pitch, and the one-way rotation as the seedling planting mechanism performs a seedling planting motion of a reference stroke. A rotation angle fine adjustment mechanism for changing the rotation angle of the input side rotation body of the clutch at a small adjustment pitch.

[Operation] When the rotating power of the seedling planting mechanism is converted into reciprocating power by the power conversion mechanism, and one of the reciprocating power is transmitted to the input side rotating body of the one-rotation clutch by the output rod, The input-side rotator is driven to the roll drive side, and the rotating shaft of the input-side rotator drives the drive shaft to drive the feeding roll. When the other power of the reciprocating power converted by the power conversion mechanism is transmitted to the input-side rotating body of the one-rotation direction clutch by the output rod, the input-side rotating body is driven to the non-roll-driving side to perform roll driving. Return to the standby position.

When the rotation angle coarse adjustment mechanism is operated, the rotation angle of the input-side rotating body of the one-rotation direction clutch, which is driven as the seedling-planting mechanism moves so as to plant one seedling, is greatly adjusted. The driving angle of the feeding roll driven in conjunction with the seedling movement of the seedling planting mechanism can be changed at a large adjustment pitch. By operating the rotation angle fine adjustment mechanism, the rotation angle of the feeding roll driven by the one rotation direction clutch changes at a small adjustment pitch, and the feeding roll driven in conjunction with the seedling movement of the seedling planting mechanism. Can be changed with a small adjustment pitch.

[Effect] Therefore, the fertilizer feeding roll can be driven by the rotating power of the seedling planting mechanism, and the fertilizer can be applied in conjunction with the seedling planting movement of the seedling planting mechanism.
The rotation angle coarse adjustment mechanism changes the roll drive angle at a large adjustment pitch to roughly adjust the amount of fertilizer applied, and the rotation angle fine adjustment mechanism changes the roll drive angle at a small adjustment pitch to adjust the fertilizer application amount. Fine adjustment, or the roll drive angle roughly adjusted by the rotation angle coarse adjustment mechanism is corrected and adjusted to the desired angle by fine adjustment by the rotation angle fine adjustment mechanism, and the actual roll drive angle is quickly and accurately adjusted to the desired angle. The amount of fertilizer applied over the entire field accompanying the seedling planting operation can be conveniently adjusted as necessary, for example, by adjusting the amount of fertilizer applied to a desired amount accurately and quickly.

The structure, operation and effect of the invention according to claim 5 are as follows.

(Structure) In the structure of the invention according to claim 4, the coarse rotation angle adjusting mechanism is provided on the input side of the power conversion mechanism, and the rotation angle fine adjustment mechanism is provided on the output side of the power conversion mechanism. .

[Operation] If the rotation angle coarse adjustment mechanism is provided on the input side of the power conversion mechanism, the position of the output rod of the power conversion mechanism is changed about the rotation axis of the power take-out member that rotates integrally with the seedling mounting mechanism. When the rotation angle fine adjustment mechanism is provided on the output side of the power conversion mechanism, the output rod of the power conversion mechanism is rotated by the input side rotation of the first first rotation direction clutch. This can be obtained by connecting the member to a portion having a different distance from the rotation axis so that the position can be freely changed.

[Effects] Both the coarse adjustment mechanism and the fine adjustment mechanism of the rotation angle can be advantageously obtained in terms of structure and economy by using the power take-out member and the output rod of the power conversion mechanism as the components of the adjustment mechanism.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a main frame 1 made of a square pipe material in a lateral direction of an airframe, an input case 2 connected to a central portion of the main frame 1,
The main frame 1 has a front end connected thereto and a plurality of chain case 3 facing forward and rearward from the input case 2 to form a planting body. Each of the chain cases 3 has a rear end. The seedling planting mechanism 4 is mounted on the lateral side so as to be freely driven, and the seedling table 5 having a plurality of seedling placing portions arranged in the lateral direction of the machine is reciprocated in the lateral direction of the machine body in conjunction with the seedling movement of the seedling planting mechanism 4. The seedling transfer mechanism is provided so as to be slidable left and right above the front end side of the planting machine so that the seedlings are transferred and supplied to the plurality of seedling mounting mechanisms 4 from the corresponding seedling mounting portions. Prior to the operation, a plurality of ground floats 6 for leveling the planting site are attached below the planting machine body, and the fertilizer applicator 1 in which the fertilizer tank 11 is located above the seedling planting mechanism 4.
0 is provided corresponding to each seedling planting mechanism 4 to constitute a seedling planting device with a fertilizer application device. This seedling planting device is connected to the rear of the self-propelled body via a link mechanism so as to be capable of ascending and descending operation, and transmits rotational power from the self-propelled body to the input case 2 so that the self-propelled body travels. A rice transplanter with a riding-type fertilizer is constructed so as to plant seedlings and to supply fertilizer near the seedlings planted in each row. It is composed.

As shown in FIGS. 1 and 2, each seedling planting mechanism 4 is rotatably supported at the rear end of the chain case 3 so as to be rotatable around a horizontal axis X of the machine body. A case 4a and a planting arm 4b that is rotatably mounted on both ends of the rotary case 4a around an axis parallel to the rotation axis X of the rotary case 4a. As the rotary case 4a rotates, , Each planting arm 4
b rotates revolving around the axis X while rotating due to the planting drive mechanism located inside the rotary case 4a. The planting claw 4c provided on one planting arm 4b and the other planting. The planting claws 4c of the arm 4b alternately pass through the seedling take-out opening of the seedling mounting table 5 from above, and block seedlings of one stock from the lower end of the mat-shaped seedling placed on the seedling mounting table 5 Take the block seedlings down, plant it down in the mud of the field,
Thereafter, a seedling planting exercise is performed so as to ascend and return to the seedling outlet of the seedling mounting table 5. Thereby, each seedling planting mechanism 4 alternately plants seedlings on the same planting line by the pair of planting claws 4c.

As shown in FIGS. 1 and 2 and the like, each of the fertilizer applicators 10 has a lower part connected to a laterally-applied fertilizer application frame 15 supported on each of the chain cases 3 of the planting machine via support columns 15a. The upper end is connected to the fertilizer tank 11, a fertilizer feeding device 20 having an upper end connected to a lower portion of the fertilizer tank 11, and a discharge cylinder 21a serving as a fertilizer outlet at the lower end of the fertilizer feeding device 20. It comprises a fertilizing hose 16 and a groove generator 17 supported on the ground float 6 with the receiving side connected to the lower end side of the fertilizing hose 16.

As shown in FIG.
A tank body 11b attached to the upper end side such that the lid 11a swings up and down around a horizontal axis of the body positioned on the front side of the body, and a tank body formed separately from the tank body 11b. 11b and a bottom portion 12 connected to the lower portion. As shown in FIG. 6, the bottom portion 12 has a rectangular through-hole forming a fertilizer discharge port 12a of the fertilizer tank 11, an inclined surface 12s for guiding the fertilizer to flow down to the fertilizer discharge port 12a, and the fertilizer tank 11 as described above. And a bolt hole 12c to be attached to the fertilizer application frame 15.
Fertilizer tank 11 in two fertilizer application devices 10 on the left side of the fuselage
The tank body 11b and the lid 11a are integrally formed so as to be a single part. The tank body 11b and the lid 11a of the fertilizer tank 11 in the two fertilizer applicators 10 on the right side of the machine body are integrally formed so as to be a single part. The tank body 11b and the lid 11a are
It is made of a translucent resin material so that the inside can be seen through from the outside without opening.

As shown in FIG. 2, in the two fertilizer feeding devices 20 on the left side of the machine body, each of the feeding rolls 25 is driven by a single hexagonal shaft mounted laterally across the feeding rolls 25 of the both manure feeding devices 20. The shaft 22 is constituted. As shown in FIGS. 2 and 7, first and second one-rotation direction clutches 31 and 32 having an output-side rotating body attached to an inner end of the drive shaft 22 so as to be integrally rotatable, Rotational direction clutch 31 and second
Arm-side input-side rotating body 3 of one-rotation direction clutch 32
A link mechanism 33 for interlocking the clutches 1a and 32a with each other, and an input-side rotator 31a of the first one-direction clutch 31 is connected to two seedling-planting mechanisms 4 on the left side of the body by a seedling-planting mechanism inside the body. 4 and the power conversion mechanism 37 linked to the two fertilizer feeding devices 2 on the left side of the body.
A feeding drive mechanism 30 for driving 0 is configured.

As shown in FIG. 7, the power conversion mechanism 37
A power take-out body that is connected over the support portions of both planting arms 4b of the seedling planting mechanism 4 and that is connected to each planting arm 4b so as to be rotatable relative to each other and that rotates together with the rotary case 4a around the axis X. And an output rod connecting portion 38a provided by attaching a bracket to the power take-out body 38, the one end of the power take-out body 38 being rotatably connected to the eccentric portion by a spherical joint. The output shaft 39 is constituted by a push-pull rod whose end side is relatively rotatably connected to the input-side rotating body 31a of the first one-way rotating clutch 31. Thereby, as shown in FIG. 7 and FIG.
Converts the reciprocating power of the seedling planting mechanism 4 into reciprocating power by the power take-out body 38 and the output rod 39, and outputs the reciprocating power to the input side rotary body 31 a of the first one-way rotating clutch 31 by the output rod 39. The input-side rotating body 31a is rotated relative to the output-side rotating body to swing the roll 25 on the non-driving side, which does not drive the pay-out roll 25, or is rotated integrally with the output-side rotating body to deliver the pay-out roll 25. Is swung to the roll drive side on which drives the. The power take-out body 38 and the input-side rotator 3 are used for swinging the input-side rotator 31a to either the roll non-drive-side off or the roll drive-side on.
The output lever 39 is swung by the set angle A determined by the connecting portion of the output rod 39 in 1a.

As shown in FIG. 3, FIG. 7, etc., the link mechanism 33 for interlocking the clutch is configured such that an intermediate portion is rotated via a connecting pin 34a on a support portion 15b provided with a bracket fixed to the fertilizer application frame 15. An intermediate swinging link 34, which is freely connected and is swingably supported by the fertilizer application frame 15 around a lateral axis of the connecting pin 34a,
The one arm portion 34b of the intermediate swing link 34 is
The input-side rod 35 linked to the input-side rotating body 31a of the one-rotation-direction clutch 31 and the other arm portion 34c of the intermediate swing link 34 are connected to the input rotation of the second one-rotation-direction clutch 32 in the form of an arm. It comprises an output rod 36 that is linked to the body 32a. The link mechanism 33 is driven by the mounting posture of the intermediate swing link 34 or the setting of the intersection angle between the two arms 34b and 34c as the input rotary body 31a of the first one-rotation direction clutch 31 is swung. The operating force of the input side rotating body 31a of the first one-rotation direction clutch 31 causes the second one-rotation direction clutch 32
Is rotated as follows. That is, as shown in FIG. 8, as the input side rotating body 31a of the first one rotation direction clutch 31 is swung to the roll non-drive side off, the input side rotating body 32a of the second one rotation direction clutch 32 is moved. Roll 2 that rotates integrally with the output side rotating body
5 is swung to the roll drive side on for driving. As shown in FIG. 7, as the input side rotating body 31a of the first one rotation direction clutch 31 swings to the roll drive side on, the input side rotating body 32a of the second one rotation direction clutch 32 rotates the output side rotation. The roll 25 is swung to the non-roll-driving side off in which the feeding roll 25 is not driven by rotating relative to the body. Input side rotating body 32a
Is swung to either the roll non-drive side on or the roll drive side off, the connecting portion of the output rod 39 on the input side rotating body 31a, the intersection angle between the two arms 34b and 34c of the intermediate swing link 34, etc. Setting angle B determined by
Just rock. As the set angle A and the set angle B, the angles required to drive the feeding roll 25 so that the amount of fertilizer supplied per unit area becomes a predetermined amount are set.

In the two fertilizer feeding devices 20 on the right side of the machine body, the feeding rolls 2 of the two fertilizer feeding devices 20 are also used.
The drive shaft 22 of each feeding roll 25 is constituted by a single hexagonal shaft mounted side by side with respect to the machine body, and the delivery drive mechanism 30 for driving the two fertilizer delivery devices 20 on the right side of the machine body also includes the two drive shafts 22 on the left side of the machine body. It has the same configuration as the feeding drive mechanism 30 for the fertilizer feeding device 20.

As a result, both the feeding drive mechanism 30 for the two fertilizer feeding devices 20 on the left side of the body and the feeding drive mechanism 30 for the two fertilizer feeding devices 20 on the right side of the body, as shown in FIGS. Fertilizer feeding device 20
Drive. That is, the rotary case 4a lowers one planting arm 4b and the other planting arm 4b.
Each time the motor is turned 180 degrees to the side where b is raised, the rotating power moves the output rod 39 of the power conversion mechanism 37 to the rising side.
Is rotated to the roll non-drive side off to return to the roll drive start position. At this time, the operating force of the input-side rotator 31a is transmitted to the input-side rotator 32a of the second one-direction clutch 32 by the link mechanism 33 to swing the input-side rotator 32a to the roll drive side on, By rotating the drive shaft 22, the delivery roll 25 is rotated by the set angle B toward the delivery side. Each time the rotary case 4a rotates one planting arm 4b upward and the other planting arm 4b lowers by 180 degrees, the output power 3 of the power conversion mechanism 37 is turned by this rotating power.
9 by moving the input side rotating body 31a of the first one rotation direction clutch 31 to the roll drive side ON, and rotating the drive shaft 22 to move the delivery roll 25 to the delivery side by the set angle A. Rotate. At this time, the operating force of the input side rotating body 31a of the first one rotation direction clutch 31 is transmitted to the input side rotating body 32a of the second one rotation direction clutch 32 by the link interlocking mechanism 33, and this input side rotating body 32a is rolled. It swings to the non-drive side off and returns to the roll drive start position.

Therefore, in each of the fertilizer applicators 10 on the left side and each fertilizer apparatus 10 on the right side, the seedling planting mechanism 4
Is driven, the feeding roll 25 of the fertilizer feeding device 20 for the feeding driving mechanism 30 is driven in one predetermined rotation direction by the rotating power of the seedling planting mechanism 4, and the fertilizer feeding device 20 is moved by the seedling planting mechanism 4. The fertilizer is taken out from the fertilizer tank 11 by a set amount and fed to the fertilizer hose 16 by the feeding roll 25 in conjunction with the seedling planting motion of the seedling, and supplied to the fertilizer hose 17 by the fertilizer hose 16. By forming a groove near the seedling to be planted by the mud planting mechanism 4 and dropping fertilizer into the groove, fertilization is performed in the mud near the planted seedling.

As shown in FIG. 7, a coarse rotation angle adjustment mechanism 40 provided on the input side of the power conversion mechanism 30 and a power conversion mechanism 3
With the rotation angle fine adjustment mechanism 45 provided on the output side of 0, the rotation angle of the feeding roll 25 driven as the seedling planting mechanism 4 performs the seedling planting movement of the reference stroke is changed to change the fertilization amount. The fertilization control mechanism 50 is configured.

As shown in FIG. 9 and the like, the rotation angle coarse adjustment mechanism 40 includes an output rod connecting portion 38a of the power take-out body 38.
And the output rod 39. The output rod 39 is connected to the plurality of connection holes 38.
When the connection is changed to one selected from b, each connection hole 38b
Since the distance between the power take-out body 38 and the rotation axis X is different, the stroke of the output rod 39 that reciprocates as the power take-out body 38 rotates changes. Therefore, the rotation angle coarse adjustment mechanism 40 can be adjusted by changing the connection of the output rod 39 to the plurality of connection holes 38b of the power take-out body 38, and by performing this adjustment, the seedling planting mechanism 4 performs the seedling movement. As a result, the input-side rotating bodies 31a, 31b of the first one-rotation direction clutch 31 and the second one-rotation direction clutch 32, which are driven each time the rotary case 4a makes one rotation,
The rotation angle of the feeding roll 25 driven by the rotary case 4a is changed by one rotation of the rotary case 4a by changing the rotation angle of the rotation case 32a at an adjustment pitch larger than the adjustment pitch when the rotation fine adjustment mechanism 45 changes the rotation angle. Change with adjustment pitch.

As shown in FIG. 10 and the like, the rotation angle fine adjustment mechanism 45 includes a plurality of connection holes 31b provided in the input side rotating body 31a of the first one rotation direction clutch 31, and the input side rotating body 31a. The output rod 39 is constituted by a stopper 47 whose one end is rotatably connected to the base end by a connecting pin 46.

As shown in FIG.
The input side rotating body 31 around the axis of the connecting pin 46
a, the free end side of the stopper 47 is connected to the plurality of connection holes 31b of the input side rotating body 31a.
Retaining release position that is separated upward from the
A plurality of notches 47a provided on the side of the input side switch to the retaining positions corresponding to the plurality of connection holes 31b of the input side rotating body 31a. By setting the retaining member 47 to the retaining release position, a portion 39a provided at the end of the output rod 39 so as to connect the output rod 39 to the connection hole 31b of the input side rotating body 31a is attached to the input side rotating body 31a. The plurality of connecting holes 31b are moved along the long holes 31c provided.
The output rod 3
9 can be changed and connected to the selected connection hole 31b. Output rod 3
9 is connected to the selected connection hole 31b,
7 is switched to the retaining position and is locked to the input side rotating body 31a by the lock screw 48 provided on the retaining member 47, so that the retaining member 47 prevents the output rod 39 from coming out of the connection hole 31b. When the output rod 39 is changed to be connected to the plurality of connection holes 31b of the input-side rotating body 31a, the distance between the plurality of connecting holes 31b and the rotation axis of the input-side rotating body 31a is different. 3
9 changes the rotation angle of the input-side rotator 31a, and the input-side rotator of the second one-rotation-direction clutch 32 rotated via the link mechanism 33 by the rotating power of the input-side rotator 31a. The rotation angle of 32a changes. Therefore, the rotation angle fine adjustment mechanism 45 is
Can be adjusted by changing the connection to the plurality of connection holes 31b of the input-side rotator 31a. By performing this adjustment, the output rod 39 moves along with the reference stroke determined by the adjustment of the rotation angle coarse adjustment mechanism 40. Driven
1 Each time the rotation angles of the input-side rotators 31a and 32a of the one-rotation direction clutch 31 and the second one-rotation direction clutch 32 change, the seedling placement mechanism 4 performs a seedling-planting motion and the rotary case 4a makes one rotation. The rotation angles of the input-side rotating bodies 31a and 32a of the driven first one-rotation direction clutch 31 and the second one-rotation direction clutch 32 are adjusted by the rotation angle coarse adjustment mechanism 4.
It is changed at an adjustment pitch smaller than the adjustment pitch when it is changed by 0, and the rotation angle of the feeding roll 25 driven every time the rotary case 4a makes one rotation is changed at the small adjustment pitch.

As shown in FIG. 5, a portion 39a of the output rod 39 connected to the input side rotating body 31a is connected to the connection hole 31b through a connection pin 39b that passes through the portion 39a and enters the connection hole 31b. .

Thus, the fertilization adjustment mechanism 50 can be adjusted by operating at least one of the rotation angle coarse adjustment mechanism 40 and the rotation angle fine adjustment mechanism 45. By performing this adjustment, the seedling planting mechanism 4 can be adjusted. The rotation angles of the input-side rotating bodies 31a and 32a of the first one-rotation direction clutch 31 and the second one-rotation direction clutch 32, which are driven each time the rotary case 4a makes one rotation by performing the planting motion, are changed. Roll 2 driven each time the motor rotates once
5 by changing the rotation angle of the rotary case 4a.
The amount of the fertilizer that is fed by the feeding roll 25 is changed each time the feeder makes one rotation.

In other words, when the sowing interval between seedlings is changed mainly in the advancing direction of the machine, that is, the interval between the seedlings is changed, the rotation angle of the delivery roll 25 driven in conjunction with the seedling movement is adjusted between the plants by the rotation angle coarse adjustment mechanism 40. Adjust to. That is, the power take-out body 38 of the power conversion mechanism 37
And a connecting hole 38b corresponding to between the stocks is selected from the plurality of connecting holes 38b of the output rod connecting portion 38a.
The output rod 39 is connected to b. When the amount of fertilizer applied per unit area is adjusted, the rotation angle of the delivery roll 25 driven in conjunction with the seedling planting movement is adjusted by the rotation angle fine adjustment mechanism 45 to one adapted to the amount of application. That is, a clutch suitable for the spraying amount is selected from the plurality of connection holes 31b of the input-side rotating body 31a in the first one-rotation direction clutch 31, and the output rod 39 is connected to the connection holes 31b.
Alternatively, the rotation angle of the feeding roll 25 is adjusted so as to be adapted to the spraying amount by rough adjustment by the rotation angle coarse adjustment mechanism 40 and fine adjustment by the rotation angle fine adjustment mechanism 45.

[Another Embodiment] FIG. 11 shows a seedling planting device with a fertilizer application device according to another embodiment. In this seedling planting device, five seedlings planted side by side in the lateral direction of the planting machine are shown. A mechanism 4 and five fertilizer devices 10 are provided. Of the five fertilizer applicators 10, the tank main body 11b of the fertilizer tank 11 in the two fertilizer applicators 10 on the left side of the machine is integrally formed, and the tank main body 11b of the fertilizer tank 11 in the three fertilizer applicators 10 on the right side of the machine is integrally formed. is there. The delivery roll 25 of the fertilizer delivery device 20 in the two fertilizer application devices 10 on the left side of the body is driven by one drive shaft 22, and the delivery roll 25 of the fertilizer delivery device 20 in the two fertilizer application devices 10 on the right side of the body is driven by one drive. It is configured to be driven by the shaft 22, and to drive the feeding roll 25 of the fertilizer feeding device 20 in the one fertilizer applicator 10 located at the center by the dedicated driving shaft 22, and each of the three drive shafts 22 is Extension drive mechanism 3
0 is linked to the rotary case 4a of the seedling planting mechanism 4 by a feeding mechanism 30 similar to that of FIG. Each of the feeding drive mechanisms 30 is provided with the coarse rotation adjustment mechanism 40 and the fine rotation adjustment mechanism 45.

[Brief description of the drawings]

FIG. 1 is a side view of an entire seedling planting device with a fertilizer application device.

FIG. 2 is a rear view of an arrangement portion of a fertilizer tank and a fertilizer feeding device of the fertilizer application device.

FIG. 3 is a rear view of the link interlocking mechanism.

FIG. 4 is an explanatory view showing an adjustment procedure of a rotation fine adjustment mechanism.

FIG. 5 is a sectional view of a connecting portion of the output rod.

FIG. 6 is a sectional view of a fertilizer feeding device.

FIG. 7 is a side view of the feeding drive mechanism.

FIG. 8 is a side view of the feeding drive mechanism.

FIG. 9 is an explanatory diagram of a rotation angle coarse adjustment mechanism.

FIG. 10 is an explanatory view of a rotation angle fine adjustment mechanism.

FIG. 11 is a rear view of a seedling planting apparatus according to another embodiment.

[Explanation of symbols]

 4 Seedling planting mechanism 11 Fertilizer tank 22 Drive shaft 25 Feeding roll 31 First one rotation direction clutch 31a Input side rotating body of first one rotation direction clutch 32 Second one rotation direction clutch 32a Input side of second one rotation direction clutch Rotating body 33 Link mechanism 34 Intermediate swing link 37 Power conversion mechanism 39 Output rod 40 Coarse rotation angle adjustment mechanism 45 Fine rotation angle adjustment mechanism 50 Fertilization adjustment mechanism on Roll drive side off Roll non-drive side

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B052 BC05 BC08 BC09 BC16 DB04 DB07 EB08 EB11 2B060 AA02 AA10 AC03 AD09 BA04 BA07 BA09 BB08 CB18 CC08

Claims (5)

[Claims] 1. A fertilizer application device for a rice transplanter, wherein a fertilizer is fed from a fertilizer tank by a feed roll driven in one rotation direction, the first and second fertilizers being attached to a drive shaft of the feed roll.
A power conversion mechanism comprising a one-way rotation clutch, converting the rotation of the seedling planting mechanism into reciprocating power and outputting the power, and an output rod connected to the input-side rotation body of the first one-way rotation clutch. The input-side rotating bodies of the first one-way rotating clutch and the second one-way rotating clutch are linked via an intermediate swing link, and the input-side rotating body of the first one-way rotating clutch is driven to the non-roll-drive side. In this case, the input-side rotating body of the second one-way rotating clutch drives the input-side rotating body to the roll driving side by the power of the input-side rotating body, and the input-side rotating body of the first one-way rotating clutch moves to the roll driving side. A fertilizer application device for a rice transplanter, comprising a link mechanism for driving the input-side rotating body of the second one-way rotating clutch to the non-roll-driving side when driven by the power of the input-side rotating body. 2. A fertilizer application device for a rice transplanter, wherein a fertilizer is fed from a fertilizer tank by a feed roll driven in one rotation direction, wherein the first and second fertilizers are attached to a drive shaft of the feed roll.
A power conversion mechanism comprising a one-way rotation clutch, converting the rotation of the seedling planting mechanism into reciprocating power and outputting the power, and an output rod connected to the input-side rotation body of the first one-way rotation clutch. When the input-side rotating bodies of the first one-way rotating clutch and the second one-way rotating clutch are linked to each other, and the input-side rotating body of the first one-way rotating clutch is driven to the roll non-drive side, this input is performed. The second by the power of the side rotator
When the input-side rotating body of the one-way rotating clutch is driven to the roll drive side, and the input-side rotating body of the first one-way rotating clutch is driven to the roll drive side, the power of the input-side rotating body is used. A link mechanism for driving the input-side rotating body of the second one-way rotating clutch to the non-roll-drive side;
1 A fertilizer device for a rice transplanter having a rotation angle adjusting mechanism for changing an angle at which an input-side rotating body of a one-way rotation clutch rotates. 3. A fertilizer application device for a rice transplanter configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction, wherein the first and second fertilizers are attached to a drive shaft of the feed roll.
A power conversion mechanism comprising a one-way rotation clutch, converting the rotation of the seedling planting mechanism into reciprocating power and outputting the power, and an output rod connected to the input-side rotation body of the first one-way rotation clutch. When the input-side rotating bodies of the first one-way rotating clutch and the second one-way rotating clutch are linked to each other, and the input-side rotating body of the first one-way rotating clutch is driven to the roll non-drive side, this input is performed. The second by the power of the side rotator
When the input-side rotating body of the one-way rotating clutch is driven to the roll drive side, and the input-side rotating body of the first one-way rotating clutch is driven to the roll drive side, the power of the input-side rotating body is used. A link mechanism for driving the input-side rotating body of the second one-way rotating clutch to the non-roll-drive side; and inputting the first one-way rotating clutch as the seedling-planting mechanism performs a seedling-planting movement of a reference stroke. A fertilizer application device for a rice transplanter having a fertilizer application adjusting mechanism that adjusts the amount of fertilizer by changing the angle at which the side rotator rotates. 4. A fertilizer application device for a rice transplanter configured to feed fertilizer from a fertilizer tank by a feed roll driven in one rotation direction, wherein the one-way rotary clutch mounted on a drive shaft of the feed roll. A power conversion mechanism that converts the rotational power of the seedling planting mechanism into reciprocating power and transmits the reciprocating power to the input-side rotating body of the one-way rotation clutch. A rotation angle coarse adjustment mechanism that changes the angle at which the input-side rotator of the one-way rotation clutch rotates with a large adjustment pitch,
A rotation angle fine-adjustment mechanism for changing an angle of rotation of the input-side rotating body of the one-way rotation clutch at a small adjustment pitch as the seedling-planting mechanism performs a seedling-planting movement of a reference stroke. Fertilizer application equipment. 5. The fertilizer applicator for a rice transplanter according to claim 4, wherein the rotation angle coarse adjustment mechanism is provided on an input side of the power conversion mechanism, and the rotation angle fine adjustment mechanism is provided on an output side of the power conversion mechanism. .