JP2011062174A - Spraying device of rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spraying device of a rice transplanter, which enables an operator to easily change the installation position of its dusting powder hopper, allows the reduction of the hopper volume according to the number of the installed hoppers, does not need branching of the delivery part of the dusting powder hopper, and provides an operator with improved workability and safety. <P>SOLUTION: The spraying device of a rice transplanter including a frame 53 mounted on a seedling tray 31 on the backside thereof with the seedling tray 31 detachably attached to the rear part of the rice transplanter, a dusting powder hopper 54 fixed to the frame 53, hoses 56aa, 56ba each attached to the dusting powder hopper 54 via corresponding delivery members 55a, 55b, for every row of seedling mats disposed on the lower part of the seedling tray 31, and nozzles 56ab, 56bb each attached to the tip of the corresponding hoses 56aa, 56ba, to spray a chemical agent present in the dusting powder hopper 54 through the nozzles 56ab, 56bb onto the bed soil of the seedling mat disposed on the seedling tray 31, is characterized in that a plurality of dusting powder hoppers 54 are provided in a manner of enabling each of the dusting powder hoppers 54 to apply the chemical agent onto two rows of the seedling mats disposed on the seedling tray 31, and the upper end of the dusting powder hopper 54 is disposed at a position lower than one half of the height of the seedling tray 31. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a rice transplanter spraying device for spraying a spray hopper drug on a bed soil of a seedling mat on a seedling table through a nozzle. Two seedling mats are arranged in multiple numbers so that one spray hopper can be applied, and the upper end of the spray hopper is spread by a rice transplanter installed at a position lower than half the height of the seedling platform. Relates to the device.

  In a conventional rice transplanter, a box application agent spraying device for applying an insect repellent on the floor soil of a seedling mat on a seedling mounting base, behind a seedling mounting base detachably attached to the rear part. And the seedlings after transplanting suppress the occurrence of pests, leaf potatoes, blight, etc. (Patent Document 1 and Patent Document 2).

Japanese Patent Laid-Open No. 2002-253009 JP 2006-158380 A

However, in the rice planter box application agent spraying device as described above, a spray hopper is installed at an upper position with respect to the seedling platform, and an operator can avoid the spray hopper installed at such a high position. Therefore, it is difficult to replenish and maintain the medicine. In particular, when the medicine is replenished, there is a possibility that the medicine may be directly applied to the operator's face or head due to spillage or wind. In addition, since all the lines of the seedling mat on the seedling platform are applied by one or two boxes of the spray hopper installed on the frame, the medicine feeding section for branching the hose from the spray hopper to each line In addition to the clogging structure at the feeding section, the sprinkler hopper has a large capacity, and there is a sense of incongruity when installed behind the seedling platform, and the seedling mat located on the back of the sprinkler hopper is visible. The problem was that the workability was hindered and workability was poor.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rice transplanter spraying device that prevents the change of the position of the spreader hopper, the volume reduction associated with the number of installations, and the branching of the feeding unit, and improves workability and safety. Is.

  For this reason, the invention according to claim 1 is the rear of the seedling stage, a frame erected on the seedling stage, a spray hopper fixed to the frame, and a sprinkle hopper through a feeding part. A hose provided for each strip at the bottom of the seedling platform, and a nozzle attached to the tip of the hose, and the spray hopper drug on the floor soil of the seedling mat on the seedling platform, In the spraying device of the rice transplanter for spraying through a nozzle, a plurality of the spray hoppers are disposed so that two seedlings of the seedling mat of the seedling platform can be applied with one spray hopper, and the spraying hopper The upper end of the material hopper is installed at a position lower than half of the height of the seedling platform.

  The invention according to claim 2 is the spraying device of the rice transplanter according to claim 1, wherein the sprinkle hopper is 2 according to 2 strips of the seedling mat or 1 hose according to 1 strip It is characterized by providing.

  Invention of Claim 3 is a spraying device of the rice transplanter of Claim 1, The said sprayed material hopper equips the bottom part of the vicinity of the said delivery part so that it can expand-contract in the up-down direction, It is characterized by the above-mentioned.

  According to invention of Claim 1, it is the back of a seedling mounting stand, Comprising: The flame | frame erected in the seedling mounting stand, The spread material hopper fixed to the flame | frame, A seedling mounting stand via a feeding part to a scattered matter hopper The rice transplanter consists of a hose provided for each lower strip and a nozzle attached to the tip of the hose. In the spraying device, a plurality of spray hoppers are arranged so that two strips of the seedling mat of the seedling platform can be applied with one spray hopper, and the upper end portion of the spray hopper is the height of the seedling platform. Because it is installed at a position lower than half of the hopper, it is possible to prevent the clogging of the medicine by making the feeding section simple by eliminating the branching of the feeding section in each spray hopper, and to reliably apply the medicine to each article. Can do. Further, by reducing the volume of one sprinkle hopper, the spatter hopper can be stably installed on the frame, and the visibility of the seedling mat on the seedling stand can be improved. Furthermore, since the installation position of the spray hopper is low, the operator can easily perform operations such as drug replenishment. Therefore, it is possible to provide a rice transplanter spraying device with improved workability and safety.

  According to the invention described in claim 2, since the sprinkle hopper is provided with two hoses according to two sections of the seedling mat or one hose according to one section, a large number of hoses are provided in one sprinkle hopper. There is no need to connect them, the frequency of supply of chemicals to the spray hopper can be suppressed, the volume of the spray hopper can be reduced, and the spray hopper can be stably installed on the frame. Accordingly, it is possible to provide a rice transplanter spraying device with improved workability.

  According to the invention described in claim 3, since the sprinkle hopper is provided with a bottom portion in the vicinity of the feeding portion so as to be vertically expandable and contractible, when supplying a medicine to the sprinkle hopper having a bellows structure at the bottom, an operator Depending on the height of the spray hopper, the height of the spray hopper can be easily moved up and down, making it easy to supply the drug.If the drug is filled to the upper end of the spray hopper, the spray hopper is stretched. Since there is a spare space at the bottom of the material hopper, the drug level at the upper end of the material hopper is lowered, and the lid of the material hopper can be reliably closed. Accordingly, it is possible to provide a rice transplanter spraying device with improved workability.

It is a whole side view of the rice transplanter which shows an example of this invention. It is a top view of a rice transplanter. It is a rear view of a seedling stand provided with a box application agent spreading device. It is an expansion perspective view of a scattered matter hopper. It is the cross-sectional back view which expanded the bottom part of the one end in a scattered matter hopper. It is the cross-sectional back view which expanded the bottom part of the scattered matter hopper which shows extending | stretching of a bellows structure. It is a mimetic diagram explaining expansion and contraction of a scattered matter hopper.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a rice transplanter as an example of the present invention, and FIG. 2 is a plan view of the rice transplanter.

  In the rice transplanter 1 of this example, as shown in FIGS. 1 and 2, a vehicle body frame 11 of a traveling vehicle body 10 on which an operator rides is provided with an engine 12 at the front and a mission case 13 at the rear. Paddy field traveling front wheels 15 are supported on both front sides of the case 13 via a front axle case 14, and paddy field traveling rear wheels 17 are supported on both rear sides of the transmission case 13 via a rear axle case 16.

  The engine 12 and its neighboring members are covered with a bonnet 18, and the mission case 13 and its neighboring members are covered with a vehicle body cover 20 having a step 19. A driver's seat 21 is attached to the upper portion of the vehicle body cover 20, and a steering handle 22 is provided in front of the driver's seat 21.

  At the rear part of the traveling vehicle body 10, a planting part 30 including a seedling mounting table 31 and a plurality of planting claws 32 for multi-row planting (although not limited to eight in the illustrated example) is connected. The planting part 30 is connected to the traveling vehicle body 10 using a three-point lifting link mechanism including a top link 33 and a lower link 34. And, it is configured to be movable up and down by an expansion / contraction operation of a hydraulic cylinder (not shown) interposed between the rear portion of the traveling vehicle body 10 and the lower link 34.

  In addition, the seedling mounts 31 installed at the front height and the rear height are plate-like forward tilting types, and are arranged with respect to the center and left and right planting transmission cases 37 via the lower guide rail 35 and the upper guide rail 36. It is supported so as to be slidable to the left and right. Below the planting transmission case 37, center and left and right planting flat floats 38 and 39 are supported via planting depth adjusting members. Therefore, the planting part 30 is lowered and the floats 38 and 39 are landed to set the planting depth of the seedlings to be taken out from the seedling mat on the seedling mount 31.

  Next, the box application agent spraying device, which is a feature of the present invention, will be described in detail. FIG. 3 is a rear view of a seedling platform provided with a box application agent spraying device, and FIG. 4 is an enlarged perspective view of a unit including a spray hopper.

  As shown in FIG. 3, a box application agent spraying device 51 as a spraying device is detachably mounted on the seedling mount 31 described above. The box application agent spraying device 51 is provided above the seedling stage 31 (at the rear of the machine body), and applies medicines to the seedling mat at the same time as transplanting the seedlings. Arranged. In addition, since one row of the machine body traveling direction of the seedling mat mounting portion 52 on the seedling mounting table 31 is one line, the seedling mounting table 31 in the illustrated example is for eight lines. In the figure, the seedling mat and the floats 38 and 39 are omitted.

  And this box application agent spreading | diffusion apparatus 51 is comprised by the delivery part 55, the conveyance part 56, etc. which were equipped in each of the flame | frame 53 and the some scattered matter hopper 54.

  The frame 53 is supported by each planting portion 30 via a stay 58, and the rear of the seedling table 31 is detachably mounted on the seedling table 31 in the left-right width direction. A plurality of spray hoppers 54 are attached to the left and right straight lines.

  At this time, the frame 53 is positioned at both end positions of the seedling platform 31 so that the upper end position of the lid portion 54a in each spray hopper 54 is a position a lower than half the height of the seedling platform 31. It will be erected.

  The spray hopper 54 stores a medicine to be applied to a seedling mat (not shown). As shown in FIG. 4, a lid 54a is provided on each of the spray hoppers 54, and the lid 54a is opened. Then, the spray hopper 54 is replenished with the medicine. The lid 54a is appropriately attached to the main body of the scattered matter hopper 54 so as to be freely opened and closed using a fastener (not shown).

  Further, the lower part of each spatter hopper 54 includes oblique portions 54ba and 54bb having repose angles in which both left and right end portions are inclined in two directions downward from the central portion, and the left and right lower portions are respectively It has a funnel shape and is provided with openings 54ca and 54cb at the bottom b at the left and right ends.

  Therefore, the medicine stored in the spray hopper 54 falls to the lower end portion of the spray hopper 54 by its own weight, and is branched in two left and right directions along the oblique portions 54ba and 54bb, and the opening 54ca of each bottom b. , 54cb fall to the feeding parts 55a, 55b connected to the lower side.

  Note that the chemicals handled by the box application agent spraying device 51 are mainly formed from a powdery raw material in a granular form as an insect repellent that suppresses the occurrence of pests, leaf potatoes, leaf blight, etc. in the transplanted seedlings. Although there is, it is not limited to this.

  Next, each of the feeding portions 55a and 55b feeds the medicine stored in the spray hopper 54 by a predetermined amount, and is constituted by feeding cases 55aa and 55ba, a feeding roll (not shown), a roll shaft 55c, and the like.

  The roll shaft 55c is connected to the roll shaft 55c of the feeding portion 55 in the sprinkle hopper 54 provided adjacently via a gear 59, and the seedling stage 31 is provided at one end or in the middle of the roll shaft 55c. A drive motor (not shown) attached at an appropriate position is connected. The roll shaft 55c may be driven by a PTO shaft (not shown) that drives the planting unit 30.

  And each delivery case 55aa and 55ba connected with the lower end part of the scattered matter hopper 54 is a box-shaped member which the upper and lower surfaces opened, and each accommodates the said delivery roll in the inside. The internal space of the feeding cases 55aa and 55ba is divided into an upper half and a lower half with the feeding roll interposed therebetween. Therefore, the medicine dropped from the spray hopper 54 is filled in the space of the upper half of the feeding cases 55aa and 55ba.

  The feeding roll is a substantially cylindrical member, and a plurality of grooves are provided on the outer peripheral surface thereof. The longitudinal direction of the grooves is the longitudinal direction of the roll shaft 55c penetrating both end faces of each feeding roll ( (Axis direction)

  The roll shaft 55c is a shaft for pivotally supporting the feeding rolls in the feeding cases 55aa and 55ba. The roll shaft 55c extends through the feeding rolls, and both ends of the roll shaft 55c are fed out. It protrudes from the left and right side surfaces of the cases 55aa and 55ba. Then, by rotating the roll shaft 55c, the feeding rolls accommodated in the feeding cases 55aa and 55ba are rotated.

  A part of the medicine filled in the upper half space of the feeding cases 55aa and 55ba is brought into contact with the outer peripheral surface of each of the feeding rolls, and a part thereof is provided on the outer peripheral surface of these feeding rolls. It is accommodated in the groove. Then, when these feeding rolls are rotated, only the medicine accommodated in the groove of the feeding roll moves to the space in the lower half of the feeding cases 55aa and 55ba, and falls downward from the groove.

  In addition, the quantity of the chemical | medical agent delivered can be selected suitably by changing the number of grooves provided in the said delivery roll, length, depth, and width | variety.

  Next, the conveyance parts 56a and 56b are connected with the feeding parts 55a and 55b, respectively. These conveyance parts 56a and 56b convey the chemical | medical agent drawn | fed out by these drawing | feeding-out parts 55a and 55b, and apply | coated it on the floor soil of the seedling mat which is not shown in figure.

  And each of this conveyance part 56a, 56b is mainly comprised by hose 56aa, 56ba and nozzle 56ab, 56bb. Therefore, one scattered matter hopper 54 is configured to include two hoses 56aa and 56ba via the feeding portions 55a and 55b. The hoses 56aa and 56ba or the nozzles 56ab and 56bb are made to be extendable and extended, and the nozzles 56ab and 56bb are extended to the lower end position of the seedling mat mounting portion 52, and the sprayed material is sprayed from the nozzles 56ab and 56bb to the ground. It is also possible to make it a configuration.

  In the box application agent spraying device 51 of the present invention, one sprinkle hopper 54 forms a unit u that integrally forms the feeding portions 55a and 55b, the transporting portions 56a and 56b, and the like. It can be attached and detached integrally for each u.

  That is, the box application agent spraying device 51 is composed of a plurality of units u. In addition, the main body of the scattered matter hopper 54 is also configured to be integrally molded up to the opening at the bottom.

  Accordingly, the seedling mat mounting portions 52 of the seedling mounting table 31 are, for example, one seedling mat mounting portion 52 located at both ends thereof, or two seedling mat mounting portions positioned at one of the left and right ends. 52 is removed, and the unit u located in the center part of the seedling stage 31 is detached from the frame 53 when folded and stored behind the seedling mat placing part 52 located in the center part of the seedling stage 31, The unit u can be integrally mounted on the frame 53 ′ at a position that does not hinder folding storage of the mat mounting portion 52.

  Then, the medicines fed out from the feeding parts 55a and 55b fall in the hoses 56aa and 56ba, and the medicines are sprayed from the nozzles 56ab and 56bb onto the floor soil of a seedling mat (not shown).

  A cylindrical rotating body (not shown) is rotatably fitted to the lower ends of the nozzles 56ab and 56bb, and a plurality of projections (not shown) are provided on the outer periphery of the rotating body so as to be in contact with the seedling mat. In addition to the arrangement, a scraper s that protrudes from the rotating body and extends on the inner surface of the tip of the nozzles 56ab and 56bb is provided.

  Accordingly, the scraper s causes the seedling mounting table 31 to reciprocate left and right at the same time as the medicine is sprayed during transplanting of the seedling, and the rotating body abuts on the seedling and the like as the reciprocating motion rotates. It is possible to scrape off mud and chemicals adhering to the tips of 56ab and 56bb and prevent clogging of the nozzles 56ab and 56bb.

  With such an arrangement, the two hose provided on the spatter hopper 54 is applied to the two sprinkles of the seed mat mounting portion 52 arranged on the seedling mount 31 by one sprinkler hopper 54. The configuration is performed at 56aa and 56ba.

  Therefore, if the seedling mat placing portion 52 (seedling mat) on the seedling placing table 31 is provided with an even number n, the n / 2 scattered matter hoppers 54 are attached to the frame 53, and The medicine is applied by these n / 2 spray hoppers 54.

  Moreover, if the seedling mat mounting part 52 is provided with odd-numbered strips m, (m−1) / 2 + 1 spray hoppers 54 are attached to the frame 53, and each of the strips is applied with n / 2 pieces. This is performed by the spray hopper 54.

  In this case, only one of the scattered matter hoppers 54 attached to the frame 53 is arranged such that the feeding portion 55 and the conveying portion 56 are arranged at only one place on the bottom of the scattered matter hopper 54. A single hose 56 from the hopper 54 is used to apply medicine to only one line of the seedling mat placing portion 52.

  Accordingly, the sprinkle hopper 54 may have a funnel-shaped rectangular parallelepiped or cube having one opening 54 for connecting the feeding portion 55 to the bottom, but it is downward from the above-described central portion. As long as the shape includes the inclined portions 54ba and 54bb that are inclined in two directions, it is possible to block one feeding portion 55 and use only the other feeding portion 55.

  With the above configuration, the feeding portion 55 can be simplified in structure without branching the feeding portion 55 in each sprinkle hopper 54, and the medicine clogging of the feeding portion 55 can be prevented, and the medicine can be added to the seedling mat. The medicine can be reliably applied to each of the strips of the mounting portion 52.

  In addition, since two seedling mat placement sections 52 (seedling mats) are dispensed by one sprinkle hopper 54, there is no need to connect a large number of hoses to one sprinkle hopper 54, and the sprinkle hopper 54 It is possible to suppress the frequency of supplying the medicine to the container, and it is possible to reduce the volume of one spray hopper 54 and to stably install the spray hopper 54 on the frame 53.

  Furthermore, the visibility of the seedling mat on the seedling mount 31 can be improved, and the installation position of the scattered matter hopper 54 is low, so that an operator can easily perform operations such as replenishment of medicine.

  Next, the sprinkle hopper of the present invention can be configured to be able to expand and contract in the vertical direction. FIG. 5 is a cross-sectional rear view in which the bottom of one end of the sprinkle hopper is enlarged, FIG. 6 is a cross-sectional rear view in which the bottom of one end of the sprinkle hopper showing the extension of the bellows structure is enlarged, and FIG. It is a schematic diagram.

  The main body of the spray hopper 54 is formed by integrally molding a synthetic resin such as plastic. As shown in FIG. 5, the outer periphery of the left and right bottom portions b connecting the feeding portions 55a and 55b is, for example, mountain folded. And a bellows structure f having a repeated structure of valley folding.

  That is, as shown in FIG. 7, for example, when only a small amount of medicine is contained in the spray hopper 54, the operator grasps the position of the spray hopper 54 and pushes up the spray hopper 54 upward. Thus, as shown in FIG. 6, the upper end of the bellows structure f extends from the position A to the position B, and the spatter hopper 54 is slid to the upper position.

  With this configuration, when supplying the spray hopper 54 with a medicine, the height of the spray hopper 54 can be easily raised and lowered by extending the bellows structure f according to the height of the operator. The medicine supply operation can be easily performed.

  In addition, for example, when the spray hopper 54 is in a fixed position and the upper end of the spray hopper 54 is at the position a (the upper end of the bellows structure f is the position i), the medicine is filled to the full upper end of the spray hopper 54 For example, by extending the bellows structure f as described above, the scattered matter hopper 54 is raised to the height of the position a ′ (the upper end of the bellows structure f is at the position B).

  As a result, since a spare space s is created at the bottom b of the spray hopper 54, the drug flows into the spare space s, the drug level at the upper end of the spray hopper 54 is lowered, and the lid 54a of the spray hopper 54 is removed. It can be closed securely.

  With the above configuration, the height position of the spray hopper 54 can be easily changed with a simple structure, and workability such as medicine supply work and fastening of the lid can be improved.

  As described above in detail, the box application agent spraying device 51 (spraying device) of the rice transplanter 1 of this example has the seedling mounting table 31 detachably attached to the rear part, and is behind the seedling mounting table 31 and is a seedling. A frame 53 erected on the platform 31, a spray hopper 54 fixed to the frame 53, hoses 56 aa, 56 ba provided for each strip at the bottom of the seedling platform 31 through the feeding unit 55 in the spray hopper 54, It consists of nozzles 56ab and 56bb attached to the tips of the hoses 56aa and 56ba. The spray hopper 54 is sprayed through the nozzles 56ab and 56bb with the spray hopper 54 on the floor soil of the seedling mat on the seedling table 31. 54, a plurality of seedling mats of the seedling table 31 are arranged so that two sprinkles can be applied with one sprinkle hopper 54, and the upper end portion of the spatter hopper 54 is half the height of the seedling table 31. Lower than One in which was installed in.

  In addition, the sprinkle hopper 54 includes two hoses 56aa (56ba) corresponding to two or two strips of the seedling mat, and the bottom b in the vicinity of the feeding portions 55a and 55b is arranged in the vertical direction. Prepare to stretch.

  In addition, this invention is applicable to all the rice transplanters provided with the seedling stand which can mount | wear with a spreading device.

DESCRIPTION OF SYMBOLS 1 Rice transplanter 31 Seedling stand 51 Box application agent spreading device 53, 53 'Frame 54 Spread material hopper 55a, 55b Feeding part 56a, 56b Carrying part 56ab, 56bb Nozzle 56aa, 56ba Hose I, B, a, a' position b Bottom f bellows structure s spare space

Claims (3)

A rear frame of the seedling stage, and a frame constructed on the seedling stage;
A spray hopper fixed to the frame;
A hose provided for each of the strips at the bottom of the seedling platform via a feeding portion in the sprinkle hopper;
A nozzle attached to the tip of the hose;
In the spraying device of the rice transplanter for spraying the sprayed hopper drug on the floor soil of the seedling mat on the seedling platform, through the nozzle,
A plurality of the spray hoppers are arranged so that two strips of the seedling mat of the seedling platform can be applied by the one spray hopper, and the upper end portion of the spray hopper has a height higher than that of the seedling platform. A rice transplanter spraying device characterized by being installed at a position lower than half the height.   2. The rice sprayer spraying device according to claim 1, wherein the sprinkle hopper includes two hose corresponding to two or one of the seedling mats and one hose corresponding to one of the seedling mats.   2. The rice sprayer spraying device according to claim 1, wherein the sprinkle hopper includes a bottom portion in the vicinity of the feeding portion so as to extend and contract in the vertical direction.

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