KR100605483B1 - Rice transplanter-mounted agrichemical applicator - Google Patents

Abstract

The present invention relates to a rice transplanter-mounted pesticide spreading device, and more particularly, a spreading mechanism for distributing a blood product in parallel with a rice transplanting operation by a rice transplanter, and a spraying motion control for intermittently distributing the blood product to the spreading device. And a spreading motion control mechanism, which is rotatably supported and in contact with the mother table, and an operating instrument disposed on the peripheral surface of the roller, and a switch unit for detecting the approach of the operating instrument. And a control unit for activating the dispersing mechanism by detecting the operation meter unit by the switch unit.

Pesticide spreading device, rice transplanter mounted, spray motion control mechanism, mother loading stand

Description

Rice transplanter-type pesticide spreading device {RICE TRANSPLANTER-MOUNTED AGRICHEMICAL APPLICATOR}

1 is a schematic configuration diagram showing a rice transplanter-mounted pesticide spreading device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing the spreading mechanism in the rice transplanter-mounted pesticide spreading apparatus of FIG. 1.

FIG. 3 is a schematic perspective view showing a spray operation control mechanism in the rice transplanter-mounted pesticide spreading apparatus of FIG. 1.

FIG. 4 is an explanatory view showing the relationship between the moving width of the mother table and the circumference of the roller in the rice transplanter-mounted pesticide spreading apparatus of FIG. 1.

5 is an explanatory view showing the relationship between the moving width of the mother table and the circumference of the roller in the rice transplanter-mounted pesticide spreading apparatus of FIG. 1.

* Description of Major Symbols in Drawings *

1 spreading mechanism 2 spreading motion control mechanism

23 Control 25 Roller

27 Proximity switch (switch section) 28 volts (operator section)

31 Coupling part 32 Coil spring

S parent tower

The present invention relates to a rice transplanter-mounted pesticide spreading device that spreads pesticides and fertilizers in parallel with the rice transplanting operation.

This application claims priority about Japanese Patent Application No. 2003-348636 for which it applied on October 7, 2003, and uses the content here.

In rice farming, it is common to carry out planting from simulated germination to rice fields by the following means. First, sprinkle germination with rice seeds in a box with a bed, and grow until it reaches a certain size. The box used here is called seedlings, and is manufactured to a certain standard. Next, the seedlings grown to a certain size on the seedlings are placed on the rice paddle bed of the rice transplanter and planted in rice fields. Then, seedlings are planted, spreading pesticides and fertilizers for pest control and weeding in rice fields. Conventionally, a scattering device for dispersing pesticides and fertilizers is mounted on a rice transplanter, and the spreading device is operated during running of the rice transplanter to spread pesticides and fertilizers on rice fields (see, for example, Japanese Patent Laid-Open No. 11-308959). .

The spreading device having such a configuration includes a spreading motion control mechanism that intermittently spreads pesticides and fertilizers by using a reciprocating motion of the mother table. The spray motion control mechanism includes a roller which is in contact with the rear surface of the mother table, an operating part provided at the end face of the roller, which is an instrument for spreading pesticides and fertilizers, and a switch which detects the operating meter part and spreads pesticides and fertilizers. There is provided with. In this spreading device, when the rice transplanter is operated, the roller rotates in accordance with the reciprocating operation of the mother loading table, and the operating instrument and the switch are in close proximity and pesticides and fertilizers are dispersed.

However, in the above-mentioned spreading apparatus, since the working instrument part is provided in the end surface of a roller, when the foreign matter, such as a mud, adheres to the end surface of a roller at the time of moving, the switch which spreads pesticides and fertilizers will generate | occur | produce. There has been a problem of scattering in the spread of pesticides and fertilizers.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a rice transplanter-mounted pesticide spreading device capable of preventing malfunction of a switch and preventing scattering of pesticides and fertilizers.

The present invention includes a spreading mechanism for distributing a product to be distributed in parallel with a transplanting operation and a scattering motion control mechanism for intermittently distributing the to-be-spreaded product to the dispersing apparatus. In the rice transplanter-mounted pesticide spreading device, the spreading motion control mechanism is rotatably supported and the peripheral surface is in contact with the mother table, an operating instrument disposed on the peripheral surface of the roller, Provided is a rice transplanter-mounted pesticide spreading device comprising a switch unit for detecting the proximity of the winter machine unit, and a control unit for operating the spreading mechanism in a state in which the detection unit detects the operating unit unit.

According to the present invention, since the peripheral surface of the roller is in contact with the surface of the mother table, when the rice transplanter operates, the roller rotates in accordance with the reciprocating motion of the mother table. As a result, even if foreign matter such as mud adheres to the peripheral surface of the roller, since such foreign matter is removed when the peripheral surface of the roller contacts the surface of the mother table, the malfunction of the switch unit caused by the adhesion of the foreign matter can be prevented. It can prevent the scattering of water.

In the present invention, it is preferable that a plurality of the working instrument portions are provided, and the plurality of the working instrument portions are arranged at equal intervals in the circumferential direction on the peripheral surface of the roller.

According to the present invention, by arranging a plurality of operating meter portions at equal intervals in the circumferential direction on the circumferential surface of the roller, the switch unit detects the approach of the operating meter portion intermittently at a predetermined time interval, and detects the detection. Dispersion mechanism works. Furthermore, the predetermined time interval is shortened as the running speed of the rice transplanter becomes faster, and becomes longer as the running speed becomes slower, and changes according to the traveling speed of the rice transplanter, so that it is scattered with a uniform concentration according to the area to be distributed. Can scatter water.

In the present invention, it is preferable that the working instrument portion is a magnetic material, and the switch portion detects the approach of the working instrument portion by the action of a magnetic force line.

According to the present invention, the wear of the roller is suppressed because the switch detects the approach of the operating instrument even when the roller and the switch do not contact each other. Thereby, since the useful period of a roller becomes long, a dispersion | distribution motion control mechanism can be used without long-term care.

In the present invention, the roller is freely supported between the state in contact with the mother mounting stage and the state separated from the mother mounting stage, providing a biasing means for adding the roller toward the mother mounting stage It is preferable.

According to the present invention, since the roller is added to the mother loading table by the biasing means, the peripheral surface of the roller can be kept in contact with the mother loading table without fail. That is, even if there are irregularities on the surface of the mother table, the roller does not rise from the mother table and the roller is reliably rotated in accordance with the reciprocating operation of the mother table. Thereby, the shift | offset | difference of rotation of the roller with respect to the reciprocating motion of a mother loading stand can be prevented, and scattering of the to-be-spreaded object can be prevented.

In this invention, it is preferable that the anti-slip member which prevents the sliding of the said roller with respect to the said base mounting stand is provided in the peripheral surface of the said roller at least.

According to the present invention, by providing the non-slip member, the roller is prevented from slipping against the reciprocating movement of the parent mounting stage, i.e., since the roller rotates without loss for the reciprocating motion of the mother mounting, scattering of the product to be distributed is scattered. You can reliably prevent the load.

In the present invention, when the moving width of the mother table is a, the circumference of the roller is b and the number of the operating instrument is n.

a <b ≤ {n / (n-1)} × a

By this, it is preferable that the diameter of the roller is set.

According to the present invention, the distance from the first operating instrument section through the switch section to the nth operating instrument section through the switch section is the length of the reciprocating path or the length of the reciprocating operation of the mounting base, that is, the mother. By lowering the moving width a of the mounting table, when the mother mounting table moves by the moving width a in one direction, each operating instrument portion passes the switch section at least once. Further, by forming the circumference b of the roller to be larger than the moving width a, the roller does not rotate more than one rotation when the mother-base portion moves by the moving width a in one direction. For this reason, neither of the operating meter portions passes the switch portion twice. As a result, even if any part of the peripheral surface of the roller is in contact with the starting point of the path or return path of the mother loading table, when the mother loading table moves by the movement width a in one direction, each operating instrument part passes the switch unit only once. Therefore, even if any position of the peripheral surface of the roller with respect to the mother table is brought into contact with the mother table, the number of working instruments corresponding to the moving width a is equal to the number n of the operating part, so that the positioning of the roller with respect to the mother table is determined. This can be done easily, without particular attention. In addition, the number n of the working instrument and the diameter of the roller can be easily determined by determining the scattering frequency.

In the present invention, the movement width of the mother table is a, the circumference of the roller b, the number of the operating instrument portion n, the movement speed a when the maximum rotational speed of the roller is m, the spread when the movement width a If the rotation speed is i,

a <m <b ≤ {n / (mn-1)} × a

While m = i / n

By this, it is preferable that the diameter of the roller is set.

According to the present invention, the parent mounting stage moves in one direction by setting the distance from the first operating instrument section through the switch section to the total number i-th working instrument section passing through the switch section, which is less than or equal to the movement width a of the mother table. When moving by the width a, the n operating meter parts totally pass the switch part at least i times. Further, by setting the circumference b of the roller to be larger than the value obtained by subtracting the moving width a from the maximum rotational speed m, the roller does not rotate more than the maximum rotational speed m when the parent mounting table moves by the moving width a in one direction. In other words, the total number of n operating meter parts does not pass through the switch part i + 1 times. In addition, when the number of scattering times i is greater than the number n of operating meter portions, the at least one working meter portion passes the switch portion two or more times, and when the number of scattering times i is not less than the number n of operating meter portions, n number of operating meter portions Of these, only the i working meter units pass the switch unit once.

In other words, even when any part of the peripheral surface of the roller is in contact with the starting point of the path or return of the mother loading table, when the mother loading table is moved by the movement width a in one direction, the operating instrument section passes the switch section only i times. Therefore, even if any position of the peripheral surface of the roller is brought into contact with the mother table, the scattering frequency at the moving width a becomes i, so that the positioning of the roller with respect to the mother table may be simplified without particular attention. I can do it.

Preferred Embodiment

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

The rice transplanter-mounted agrochemical dispersing apparatus (hereinafter abbreviated as spreading apparatus) of this embodiment distributes the granular pesticide for the purpose of pest control in the hair | mouth mounted on the rice transplanter base S of a rice transplanter.

As shown in Fig. 1, this dispersing apparatus is mounted on the rice transplanter, is installed further behind the mother loading stand S located at the rear of the rice transplanter, and the spreading mechanism 1 spreads pesticides in parallel with the rice transplanting operation. ), A scattering motion control mechanism (2) which operates based on the reciprocating operation of the mother loading table (S), and which intermittently performs the scattering of the pesticides by the spreading mechanism (1) to the transfer operation, and the spreading mechanism ( A power source 4 for supplying electric power for operating 1) is provided. Codes for each instrument are collected in a centerbox 5.

The spreading mechanism 1 is fixed to the support frame 7 provided at the rear of the mother loading stand S using the fixing frame 9, and contains a storage portion 10 and a storage portion 10 for storing pesticides. It is provided with a pipe portion 12 of the pesticide attached to the bottom. As shown in FIG. 2, the housing 10 is formed in a vertically long box shape, and a removable cover 10a is attached to an upper surface thereof. Storage of the pesticide in this container 10 is performed by removing the lid 10a.

The pipe part 11 communicates with the inner bottom of the accommodating part 10 in which the upper end part was formed in funnel shape, and the lower end part is attached to the nozzle part 12. Moreover, this pipe part 11 is inserted through the circular hole provided in the above-mentioned fixing frame 9, and the fixing frame 9 is moved up and down by the annular member 11a which made the pipe part 11 pass through. It is fitted. Thereby, the dispersion | distribution mechanism 1 is supported so that rotational movement can be carried out with respect to the fixed frame 9 about the pipe part 11 as an axis.

The nozzle portion 12 includes a connecting portion 12a connected to the pipe portion 11, a shielding portion 12b for preventing the fall of pesticides, and a drive portion 12c incorporating a motor for diffusing the pesticides behind the rice transplanter. And the ejection part 12d opened to the rear of the rice transplanter.

The shield 12d is provided with a shielding plate (not shown) for blocking the flow path of the pesticide directed from the connecting portion 12a to the driving unit 12c, and a solenoid 13 for moving the shielding plate in the flow path. This solenoid 13 operates in response to the signal from the center box 5, and moves the shield plate in the flow path. That is, during the operation of the solenoid 13, the pesticide falls from the connecting portion 12a toward the driving portion 12c. In addition, the shield 12b is provided with an adjustment lever 12e. By moving the adjustment lever 12e, the operating time of the solenoid 13 changes, that is, the fall amount of the pesticide is appropriately adjusted. I can adjust it.

Inside the drive part 12c, a right root part (not shown) attached to a motor is provided, and by this right root part, the pesticide which can fall from the shielding part 12b is blown horizontally.

On both sides of the ejection part 12d, a rectifying plate 12f for regulating the spreading width and the spreading direction of the pesticide is provided, and the diffusion angle of the pesticide to the side is adjusted by the rectifying plate 12f. Can be.

As shown in FIG. 1, the dispersion | movement motion control mechanism 2 is based on the detection means 21 which generate | occur | produces a signal based on the reciprocating motion of the mother loading table S, and the signal from the detection means 21 based on. And a control unit 23 for operating the spreading mechanism 1.

The detection means 21 is fixed to the support frame F for supporting the mother loading stand S using a stay 24, and as shown in FIG. Proximity switch (switch part) which detects the approach of the roller 25 which contact | abuts the back surface Sa, the several bolt (working-mechanical part) 28 which acts as an instrument of the operation | movement of the spread mechanism 1, and the bolt 28 (27).

The roller 25 is formed in substantially disk shape, and the peripheral surface 25a is arrange | positioned so that it may contact with the inner surface Sa of the mother loading table S, and will rotate toward the moving direction of the mother loading table S. As shown in FIG. do. This roller 25 is a non-slip member which rotates without slipping with respect to the back surface Sa of the mother mounting table S. The roller 25 is made of a resin material having a high coefficient of friction such as urethane rubber. A plurality of irregularities are formed in the circumferential direction.

The plurality of bolts 28 are embedded in the radial direction from the peripheral surface 25a of the roller 25, and the head of the bolt 28 disposed on the peripheral surface 25a is disposed in the circumferential direction of the roller 25. Are arranged at equal intervals.

Proximity switch 27 is fixed to the support member 29 for supporting the roller 25 so as to rotate freely, the action of the magnetic force lines the proximity of the bolt 28 to move in accordance with the reciprocating motion of the mother mounting stage (S). Is detected by. The proximity switch 27 is fixed to the circumferential surface 25a of the roller 25 and electrically connected to the center box by the cable 27a.

Moreover, this detection part 21 is equipped with the connection part 31 which the oscillation freely connects the support member 29 with respect to the stay 24 centering on the axis line L1, and this connection part 31 has a coil spring. (Vaging means) 32 is provided. The coil spring 32 is added in the direction (arrow A direction in the drawing) to press the support member 29 and the roller 25 against the back surface Sa of the mother mounting table S with respect to the stay 24. have.

The stay 24 is comprised from the base end plate material 24a fixed to the support frame F side, and the front end side plate material 24b fixed to the connection part 31 side. The angle of the rotation direction of the roller 25 with respect to the moving direction of the parent | base base stand S is adjustable, and the front end side plate material 24b is attached to the base end plate material 24a. In addition, adjustment of the contact angle of the peripheral surface of the roller 25 with respect to the back surface Sa of the base mounting table S may bend the board | substrate side plate material 24a, and the base end side member (with respect to the support frame F) ( It is possible by adjusting the mounting angle of 24). Thereby, arrangement | positioning of the roller 25 with respect to the back surface Sa of the mother loading table S can be adjusted to an appropriate position irrespective of the model of a rice transplanter.

As shown in FIG. 1, the control unit 23 is provided inside the center box 5. The center box 5 is provided with a switching switch 23a capable of operating the solenoid 13 of the spreading mechanism 1, and in the state where the switching switch 23a is turned ON, switching of the proximity switch 22 is performed. The solenoid 13 is actuated on the basis.

In the dispersion control mechanism 2 configured as described above, when the number of bolts arranged on the circumferential surface of the roller 25 is n and the maximum rotational speed of the roller 25 at the moving width a is m, the roller ( 25) the circumference b,

a <m <b ≤ {n / (mn-1)} × a... (X)

Determined by Here, the movement width a of the mother loading stand S represents the route or return path of the mother loading stand S which reciprocates, and is determined based on the specification of the rice transplanter provided with the mother loading stand S. As shown in FIG. Moreover, when the maximum rotation speed m of the roller 25 makes the spread | recovery frequency of the pesticide at the moving width a into i,

m = i / n

Determined by

That is, for example, when the number of spraying times i of the pesticide at the moving width a is set to four, and at the same time, the number n of the bolts 28 is four, the maximum rotation speed m becomes 1, and the roller 25 Circumference b of

a <b ≤ 4a / 3

The diameter of the roller 25 is determined so that it may be in the range of. In this case, as shown in FIG. 4, the distance from the first bolt 28a passing through the vicinity of the proximity switch 27 to the fourth bolt 28d passing through the parent mounting stage ( It becomes less than the movement width a of S). For this reason, when the mother loading table S moves by the movement width a in one direction, each bolt 28a-28d passes through the proximity switch 27 at least once.

Further, by forming the circumference b of the roller 25 larger than the moving width a, the roller 25 does not rotate more than one rotation when the base mounting table S moves by the moving width a in one direction. None of the bolts 28a-28d passes through the proximity switch 27 twice. That is, even when the position of the peripheral surface 25a of the roller 25 is in contact with the starting point of the return path or return path of the mother loading table S, when the mother loading table S moves by one movement width a in one direction, Each bolt 28a-28d passes through the proximity switch 27 only once.

For example, in the case where the number of spraying times i of the pesticide at the moving width a is set to four, and at the same time, the number n of the bolts 28 is two, the maximum rotation speed m becomes 2, and the roller 25 ) Of circumference b,

a <2 <b ≤ 2a / 3

The diameter of the roller 25 is determined so that it may be in the range of. Also in this case, as described above, as shown in FIG. 5, the distance until the two bolts 28e and 28f pass through the proximity switch 27 twice is the moving width a of the base mounting table S. FIG. It becomes as follows. For this reason, when the two bolt mother bases S move by the movement width a in one direction, each of the bolts 28e and 28f passes through the proximity switch 27 at least twice.

In addition, since the length of the circumference b of the roller 25 is formed larger than the moving width a, the roller 25 does not rotate more than one rotation when the mother loading table S moves by the moving width a in one direction. No bolts 28a-28d pass through twice. That is, even when the position of the peripheral surface 25a of the roller 25 is in contact with the starting point of the return path or return path of the mother loading table S, when the mother loading table S moves by the movement width a in one direction, The bolts 28e and 28f pass through the proximity switch 27 only two times.

In addition, it is preferable that all the bolts 28 pass through the proximity switch at least once when the base mounting table S moves by the moving width a. In other words, it is preferable that the scattering frequency i is equal to or greater than the number n of the bolts 28, and the maximum rotational speed m is made one or more real numbers. Moreover, making the maximum rotation speed m into 1 or more real number is also effective at the point which prevents the diameter of the roller 25 from becoming large.

The use method of the scattering device comprised as mentioned above is demonstrated.

First, the bundle of hairs raised by the seedling box is loaded on the mother loading stand S, and at the same time, the granular pesticide is put into the container 1. Next, the changeover switch 23a is turned ON so that the spreading mechanism 1 is operable based on the switching of the proximity switch 27.

Then, when starting a seeding machine by a rice transplanter, the mother loading stand S moves to the side. During this planting operation, the roller 25 rotates about the back surface Sa of the mother mounting table S, and each time a plurality of bolts 25 sequentially pass through the proximity switch 27, the proximity switch ( 27 is intermittently switched. Then, in synchronism with the switching of the proximity switch 27, the spray mechanism 1 spreads the pesticide behind the rice transplanter.

At this time, foreign matters such as mud which are raised in accordance with the movement of the rice transplanter adhere to the circumferential surface 25a of the roller 25, but when the circumferential surface is brought into contact with the surface Sa of the mother loading table S, Foreign matter is removed from the peripheral surface 25a.

In addition, there is an unevenness on the rear surface Sa of the mother mounting table S, because there is a joint portion of the components of the mother mounting table S, and a tube for supplying lubricant to the seedling planting device is arranged. By the connection part 31 and the coil spring 32, the circumferential surface 25a of the roller 25 is prevented from lifting in the mother loading table S. As shown in FIG. In addition, the roller 25 is formed of a resin material having a large coefficient of friction, while the peripheral surface 25a is formed into an uneven shape, and therefore, the roller 25 does not slip against the rear surface 25a of the mother loading table S. Therefore, during the planting operation, the roller 25 reliably rotates on the back surface 25a in accordance with the reciprocating operation of the mother loading table S.

When the planting speed by the rice transplanter changes, since the moving speed of the mother mounting table S changes and changes, the time interval of detection of each bolt 28 by the proximity switch 22 changes. Therefore, the time interval of the pesticide spreading by the spreading mechanism 1 that synchronizes with the switching of the proximity switch 22 also changes.

The pesticide spreading is intermittently carried out by the spreading mechanism 1 while the planting operation by the rice transplanter continues, but when the planting operation is stopped, the reciprocating movement of the mother table S is stopped. In this case, the spreading mechanism 1 is stopped to stop the pesticide spreading.

As described above, according to this rice transplanter-mounted pesticide spreading device, at the time of rice transplanting, the peripheral surface 25a of the roller 25 and the rear surface Sa of the mother loading table S come into contact with each other and the peripheral surface of the roller 25 Since the foreign matter adhering to 25a can be removed, the malfunction of the proximity switch 27 due to the adhesion of the foreign matter can be prevented and the scattering of the pesticide spreading can be prevented.

Further, by arranging the plurality of bolts 28 on the peripheral surface 25a of the roller 25 at equal intervals, the spreading mechanism 1 is intermittently moved at regular intervals in accordance with the speed of the operation of the control section 23. Because of this, it is possible to spread pesticides at equal intervals.

Moreover, since the detection part 21 is provided with the proximity switch 27 which detects the approach of the bolt 28 by the action of a magnetic force line, the detection of the bolt 28 to the peripheral surface 25a of the roller 25 is carried out. There is no need to touch the switch section to detect. Therefore, wear of the roller 25 can be suppressed, and as a result, the dispersion | distribution motion control mechanism 2 can be used over a long period, without replacing the roller 25. As shown in FIG.

Further, while the roller 25 is formed of a resin material having a large coefficient of friction, the peripheral surface 25a is formed into an uneven shape, and at the same time, the roller 25 is formed by the connecting portion 31 and the coil spring 32. Since the circumferential surface 25a of the surface is surely kept in contact with the rear surface Sa of the mother loading table S, the rotation of the roller 25 with respect to the reciprocating motion of the mother loading table S is prevented. In this way, it is possible to prevent scattering of the pesticide spread.

Moreover, as the circumference b of the roller 25 falls within the range of the above formula (X), the position of the peripheral surface 25a of the roller 25 is determined as the diameter of the roller 25 is determined. Even in contact with the table S, the desired scattering number i is determined so that the number n of bolts and the diameter of the roller 25 can be easily determined.

In addition, in the above-mentioned embodiment, although the metal bolt 28 which acts as a trigger of the operation | movement of the spreading mechanism 1 was attached to the roller 25, it is not limited to this, At least the proximity switch 22 is a magnetic force line. What is necessary is just to arrange | position the magnetic substance which can be detected by the action to the peripheral surface 25a of the roller 25.

In addition, although the roller 25 is added to the back surface Sa side of the mother loading table S by rocking about the axis L1 by the connection part 31 and the coil spring 32, it limits to this. It does not need to be sufficient, but the structure which can rotate at least along the back surface which has unevenness | corrugation should just be sufficient. That is, for example, the roller 25 may be configured to be freely supported in the vertical direction of the rear surface Sa, and to be biased toward the rear surface Sa by the biasing means.

Further, the roller 25 is formed of a resin material having a large coefficient of friction such as urethane rubber as the non-slip member, but is not limited thereto, and the roller 25 is formed of a non-slip member on at least the peripheral surface 25a of the roller 25 in contact. What is necessary is just to provide the resin material with a large friction coefficient.

In addition, it is not limited to a resin material having a large coefficient of friction, and at least the peripheral surface 25a of the roller 25 may not slip against the rear surface Sa of the mother loading table S. Therefore, it does not matter as long as the peripheral surface 25a of the roller 25 has adhesiveness, for example.

Further, the spreading mechanism 1 spreads the granular pesticide further to the rear of the mother loading table S, but is not limited thereto, and may be one that spreads the pesticide at least. That is, for example, the dispersion mechanism 1 may be one capable of dispersing a certain amount of liquid pesticide in the hair.

Moreover, it is not limited to the pesticide for insect pest control, What is necessary is just to spread | distribute in parallel with a rice transplanting operation, For example, it may be a fertilizer.

As mentioned above, although embodiment of this invention was described with reference to drawings, a specific structure is not limited to this Example, The design change of the range which does not deviate from the summary of this invention, etc. are included.

As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to the said embodiment, A structure addition, omission, substitution, and other changes are possible in the range which does not deviate from the meaning of this invention. The present invention is not limited by the above description, but is limited to the following claims.

According to the present invention, it is possible to provide a rice transplanter-mounted pesticide spreading device capable of preventing malfunction of the switch portion due to adhesion of foreign matter such as mud and preventing scattering of the product to be scattered.

Claims (7)

A rice transplanter including a spreading mechanism for distributing the workpieces in parallel with the transplanting operation by a rice transplanter having a mother-mounting stage for performing reciprocating operation, and a spraying operation control mechanism for intermittently distributing the workpieces in the spreading mechanism. In the mounted pesticide spreading device, The spreading motion control mechanism includes a roller which is rotatably supported and in contact with a peripheral surface of the mother table, an operating instrument disposed on the peripheral surface of the roller, a switch unit for detecting the approach of the operating instrument; And a control unit configured to operate the spreading mechanism in response to the detection of the operating instrument unit by the switch unit. The method of claim 1, A plurality of the operation instrument is provided, the plurality of the operation instrument is a rice transplanter mounted pesticide spreading device is arranged at equal intervals in the circumferential direction on the peripheral surface of the roller. The method of claim 1, The working instrument part is a magnetic substance, the rice transplanter mounted pesticide spreading device for detecting the switch by the action of the magnetic force line of the switch unit. The method of claim 1, The roller is a rice transplanter-mounted pesticide having a movable means freely supported between the state in contact with the mother mounting stage and the state separated from the mother mounting stage, and added to the roller facing the mother mounting stage. Spreader. The method of claim 1, A rice transplanter-mounted pesticide spreading device, wherein a non-slip member for preventing slippage of the roller relative to the mother table is provided on at least a peripheral surface of the roller. The method of claim 2, When the moving width of the mother table is a, the circumference of the roller is b and the number of the operating instrument is n, a <b ≤ {n / (n-1)} × a The rice transplanter-mounted pesticide spreading device in which the diameter of the roller is set. The method of claim 2, The moving width of the mother table is a, the circumference of the roller is b, the number of the operating instrument is n, the maximum rotational speed of the roller at the moving width a is m, and the scattering frequency at the moving width a is i. if, a <m <b ≤ {n / (mn-1)} × a On the other hand, rice transplanter-mounted pesticide spreading device in which the diameter of the roller is set by m = i / n.

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