JP4485265B2 - Rice transplanter-mounted drug sprayer - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a rice transplanter-mounted chemical spraying device that is mounted on a rice transplanter and sprays chemicals such as agricultural chemicals and fertilizers in parallel with rice planting work.

  Agricultural chemicals and other chemicals that are sprayed for the purpose of weeding in paddy fields where water has been introduced after the completion of shrimp are usually sprayed around several days before rice planting, but in recent years the ingredients have been improved, It is possible to spray at the same time.

  Such drugs include liquid and granular ones, and a spraying device is prepared for each. The spray device for liquid medicine uses a rotary motion of the scraping nail of the seedling to send out the medicine intermittently, and drops the medicine little by little after a predetermined time. It is sprayed on the paddy field by operating it while driving.

  A spraying device for spraying granular medicine is attached to a rice transplanter, which causes the medicine to flow intermittently from the medicine storage section, and then the flowed medicine is blown away by a fan driven by another power source. In addition, the medicine is sprayed onto the paddy field by operating it during the running of the rice transplanter that performs the rice planting (see, for example, Patent Document 1).

  Such a rice transplanter-mounted medicine spraying device (hereinafter simply referred to as a spraying device) is shown in FIG. The spraying apparatus shown in the figure is installed at the rear of the seedling platform S located at the rear of the rice transplanter and reciprocates between the spraying mechanism 1 for spraying agricultural chemicals in parallel with the rice transplanting operation and the seedling platform S provided in the rice transplanter A spraying operation control mechanism 2 that is operated using the operation and intermittently sprays the agricultural chemicals by the spraying mechanism 1 in synchronization with the rice transplanting operation, and a power supply mechanism 4 that supplies power for operating the spraying mechanism 1. I have.

  The spraying mechanism 1 includes a storage unit 10 in which the agricultural chemicals of the rice transplanter are stored, and a nozzle unit 12 that ejects the agricultural chemicals supplied through a pipe unit (supply path) 11 attached to the lower part of the storage unit 10. It is fixed to a portal frame 13 erected on the rear side of the platform S. In the frame 13, two legs 14 that are spaced apart in the width direction of the seedling platform S are screwed to gear boxes B that drive the seedling scraping claws. Note that the existing screw holes and screws for fixing the leg portions 14 are used as they are in the gear box B.

  The details of the spraying operation control mechanism 2 are shown in FIG. On the back side of the seedling table S, a bar 21 that moves back and forth with the seedling table S is attached. The bar 21 is attached to the back surface of the seedling platform S in parallel with the moving direction of the seedling platform S.

Bar 21 has a so-called channel shape of the cross section U-shaped, and is fixed with a fastening belt 21b a central groove 21a in the beam portion S _B or the like in a state of facing the front of the planting machine. A plurality of metal bolts (operation trigger portions) 21c are attached to a portion corresponding to the bottom surface of the groove portion 21a. The bolts 21c are arranged at equal intervals in a range slightly narrower than the moving width of the seedling table S.

  A proximity switch 22 is attached to the bar 21 so as to be movable in its length direction. The proximity switch 22 has a mechanism for detecting the approach of the bolt 21 c that moves in accordance with the reciprocating motion of the seedling platform S by the action of the magnetic lines of force, and is attached to the carriage 23 that is movably attached along the bar 21. The detection unit 22a is fixed toward the bottom surface of the groove 21a. The carriage 23 is provided with two wheels 23 a on both sides, and the wheels 23 a are movable in the length direction of the bar 21 by meshing with the rail portions 21 d provided on the bar 21. ing.

  When the proximity switch 22 is moved along the bar 21 together with the carriage 23, every time the detection unit 22a approaches the bolt 21c, the approach is detected and an output is obtained. (In actuality, the bar 21 attached to the seedling table S is moved and switched.)

  Further, the support frame F shown in FIG. 3 is attached with a support bar portion 25 for holding the proximity switch 22 in a predetermined position. The support bar portion 25 includes a rod-like portion 25a at the tip. The rod-like portion 25a is in a state where the tip is inserted into an attachment hole 23b formed in the carriage 23, so that the proximity switch 22 and the carriage 23 always remain in a predetermined position.

  In the case of the spraying device configured as described above, when the planting operation of the rice transplanter is started, the seedling platform S starts to reciprocate sideways in synchronization with the scraping operation of the seedling by the scraping claw. When the seedling stage S starts to reciprocate sideways, the bar 21 reciprocates together with the seedling stage S, and a plurality of bolts 21c attached to the bar 21 pass over the detection unit 22a of the proximity switch 22 one after another. Each time the proximity switch 22 is switched.

Each time the proximity switch 22 is switched, a valve (not shown) provided in the spraying mechanism 1 opens, and a certain amount of pesticide is discharged from the storage unit 10 and ejected from the nozzle unit 12 toward the rear of the rice transplanter. The seedling stage S operates in synchronism with the planting operation of the rice transplanter. When the planting operation is decelerated, the moving speed of the seedling stage S also decreases, and when the planting operation is increased, the moving speed of the seedling platform S is increased. Therefore, the amount of pesticide sprayed on a predetermined planting area is constant regardless of the planting speed of the rice transplanter.
JP 11-308959 A

  In the conventional spraying device configured as described above, the spraying operation control mechanism 2 is fixed to the back side (the surface from the front of the rice transplanter) of the seedling platform S. However, since this region is sandwiched between the rice transplanter body, wheels, and the like and the seedling platform S, there is a problem that the installation space is limited and the installation work may not be easy.

  This invention is made | formed in view of the said situation, Comprising: It aims at provision of the rice transplanter mounting-type chemical | medical agent spraying apparatus with which the installation operation | work of a spraying operation control mechanism is easy.

In order to solve the above problems, the present invention proposes the following means.
The invention described in claim 1 is a rice transplanter-mounted drug spraying device that sprays a drug in parallel with rice planting work, and includes a spraying mechanism for spraying the drug, and a seedling platform provided in the rice transplanter. A spraying operation control mechanism that is operated using a reciprocating motion and intermittently performs the spraying of the medicine by the spraying mechanism in synchronization with the planting operation, and the spraying operation control mechanism is provided on the front surface of the seedling platform. An operation trigger part that is attached to the seedling table and that reciprocates together with the seedling platform and triggers the operation of the spraying mechanism; and is attached to the rice transplanter body facing the seedling platform, and the operation trigger unit is connected to the seedling platform. Bei example a switch for oN-oFF is switched by moving along with the stand of the reciprocating operation, the seedling stage includes a partition wall that partitions the conditions of nursery is set to each other in front of the platform該苗, The spraying operation control Structure comprises a support frame for supporting the actuating trigger unit, the support frame has proposed a rice transplanter-mounted chemical spraying apparatus characterized in that it is fixed relative to the partition wall.

According to the rice transplanter-mounted chemical spraying apparatus according to the present invention, the spraying operation control mechanism is provided on the front surface of the seedling platform, that is, the surface on which the seedbed is set (the rear side of the rice transplanter with respect to the seedling platform). This facilitates the installation operation of the spraying operation control mechanism.
In addition, since the distance between the switch and the spraying mechanism becomes closer than before by providing a spraying mechanism for spraying the drug as in the past, the rear of the seedling platform of the rice transplanter, wiring and mounting work are facilitated. .

According to the rice transplanter-mounted chemical spraying apparatus according to the present invention, the operation trigger is fixed to the partition wall via the support frame, so that the mounting operation of the spraying operation control mechanism becomes easy and reliable, and the seedling Positioning of the mounting with respect to the mounting table is facilitated.
Preferably, the support frame is further fixed so as to sandwich the seedling table from the front surface and the rear surface at the upper end edge of the seedling table. Thereby, an operation opportunity part can be fixed still more reliably.

According to a second aspect of the present invention, in the rice transplanter-mounted medicine spraying device according to the first aspect, the spraying operation control mechanism is supported by a support frame fixed to the seedling stand and the tips of the support frames. And a bar for switching the switch by reciprocating together with the seedling stage, and the bar is supported at a distance of at least 10 cm from the seedling stage. A rice transplanter-mounted type medicine spraying device is proposed.

According to the rice transplanter-equipped medicine spraying apparatus according to the present invention, the bar is supported in a range where there is no problem in the operation of setting the nursery bed on the seedling platform and the rice planting operation.
Preferably, the bar is attached at a position about two-thirds of the seedling platform. This is because if the attachment position is too close to the upper end of the seedling platform, it will hinder the operation of setting the seedbed on the seedling platform, and if it is too low, it will interfere with the bar-shaped seedbed guide provided on the seedling platform.

According to the invention which concerns on Claim 1, in order to attach a spreading | diffusion operation control mechanism to the front surface (back side of a rice transplanter with respect to a seedling stand) of a seedling stand, attachment work of a spreading action control mechanism can be performed easily. it can.
According to the second aspect of the present invention, since the support frame is attached to the partition wall of the seedling table, the attaching operation of the spraying operation control mechanism can be easily and reliably performed, and the positioning of the attachment with respect to the seedling table is performed. Can also be done easily.
Furthermore, according to the invention which concerns on Claim 3, it can prevent that an operation opportunity part becomes a hindrance of the setting of a seedbed by attaching a bar to 10 cm or more in height from a seedling stand.

An embodiment of the present invention will be described below with reference to the drawings. In addition, about the structure same as a prior art, the same code | symbol is used and the description is abbreviate | omitted.
What was shown in FIG. 1 is a schematic side view of the spraying device which concerns on this embodiment. In the figure, reference numeral 30 denotes a spraying operation control mechanism. The spraying mechanism 1 and the power supply mechanism 4 have the same configuration as that of the conventional spraying device, and a description thereof will be omitted.
The spraying operation control mechanism 30 includes a pair of support frames 31 fixed to a partition wall that partitions a strip of a seedling platform S described later, a bar 32 supported by the support frame 31, and a proximity switch 22.

  FIG. 2 shows a perspective view of the spraying operation control mechanism 30. The seedling platform S includes a plurality of strips 35 on which seedbeds are set, and partition walls 36 are provided between the strips 35 and at the left and right ends. The support frame 31 includes a base 40 and a stay portion 41, and the base 40 further includes a base body 42 and a pressing portion 43 that is pivotally fixed to the base body 42 with a hinge structure. Yes. The base body 42 is further provided with a groove 45 into which the partition wall 36 is inserted. With the end of the partition wall 36 (the upper end of the seedling platform S) inserted in the groove 45, the upper end of the seedling platform S is sandwiched between the pressing portion 43 and the base body 42. The base 40 is fixed to the seedling support S by fixing the base main body 42 and the pressing portion 43 so as to approach each other with the bolts 44.

The stay part 41 extends to the front side (the rear side of the rice transplanter) of the seedling platform S and supports the bar 32 at the tip. The structure of the bar 32 itself is the same as that of the conventional bar 21, and includes a plurality of bolts 21c (see FIG. 4) as an operation trigger part. The detailed structure of the bar 32 is the same as that of the bar 21, and a description thereof will be omitted.
As shown in the figure, in this example, a sleeve 50 is extrapolated to the bar 32, and the proximity switch 22 is provided on the sleeve 50. The sleeve 50 has the same structure as that of the conventional carriage 23, and a detailed description thereof will be omitted. The tip of the support bar 53 is attached to the sleeve 50 together with the proximity switch 22. The base end of the support bar 53 is fixed to the spray mechanism 1 as shown in FIG. When the seedling stage S is reciprocated, the support bar 53, the sleeve 50, and the proximity switch 22 do not follow, and the bar 32 reciprocates in the sleeve 50.
Further, the proximity switch 22 is connected to the distribution mechanism 1 by a wire 54, and the distribution mechanism 1 is electrically connected to the power supply mechanism 4.

  The mounting position of the bar 32 is preferably about two-thirds from the bottom of the seedling stage S. If the mounting position is too close to the upper end of the seedling platform S, it will hinder the operation of setting the seedbed on the seedling platform S, and if it is too low, it will interfere with the rod-shaped nursery guide 55 provided on the seedling platform S. Because. The distance from the seedling platform S (reference numeral H in FIG. 1) is preferably 10 cm or more so as not to hinder the setting of the seedbed and the rice planting operation.

A method of using the spraying device configured as described above will be described.
First, when the planting operation of the rice transplanter is started, the seedling platform S starts to reciprocate sideways in synchronization with the seedling scraping operation by the scraping claws. Then, when the seedling stage S starts to reciprocate laterally, the bar 32 reciprocates together with the seedling stage S, and a plurality of bolts as operation triggers attached to the bar 32 (see bolts 21c in FIG. 4). Each time the sensor passes over the detection part of the proximity switch 22, the proximity switch 22 is switched.
Here, when the proximity switch 22 is switched, a valve (not shown) provided in the spraying mechanism 1 opens each time, and a certain amount of pesticide is discharged from the storage unit 10, and the rear of the rice transplanter from the nozzle unit 12. Erupted toward the.
Furthermore, the seedling platform S operates in synchronization with the planting operation of the rice transplanter. When the planting operation is decelerated, the moving speed of the seedling platform S also decreases, and when the planting operation is increased, the seedling platform S Since the moving speed also increases, the amount of pesticide sprayed on a predetermined planting area is constant regardless of the planting speed of the rice transplanter.

As described above, according to the rice transplanter-mounted chemical spraying device, the spraying operation control mechanism 30 is attached to the front surface of the seedling platform S (the rear side of the rice transplanter with respect to the seedling platform S). The attachment work of the mechanism 30 can be easily performed.
In addition, since it is not necessary to pass the wiring 54 for electrically connecting the spraying mechanism 1 and the proximity switch 22 from the back surface to the front surface of the seedling platform S, the mounting operation can be performed more easily than this point. That is, since the distance between the proximity switch 22 and the spraying mechanism 1 is reduced, the length of the wiring 54 can be shortened and wiring work can be easily performed.

Further, since the support frame 31 is attached so as to sandwich the partition wall 36 of the seedling table S, the dispersal operation control mechanism 30 can be easily and reliably attached and the positioning of the attachment with respect to the seedling table S is easy. Can be done.
In addition, since the bar 32 is attached at a position of about two thirds from the bottom of the seedling platform S and is further installed at a height of 10 cm or more from the seedling platform S, it does not interfere with the setting of the nursery bed. Also, it does not interfere with the guide member 55.

  In the above-described embodiment, the specific structure of the support frame 31 and the specific structure of the spraying operation control mechanism 30 including the proximity switch are not limited to the above example, and a known technique is appropriately used. Needless to say, they can be applied in combination. That is, for example, as described in JP-A-11-308959, a switch that is turned ON / OFF by a protrusion may be used instead of the proximity switch 22. Furthermore, for example, the operation trigger part to be switched by the proximity switch 22 may be composed of a plurality of magnets instead of the plurality of bolts 21c.

Further, the fixing position of the support frame 31 is not limited to the above example, and the bar 32 provided with the bolt 21c as an operation trigger part may be positioned on the front side of the seedling platform S.
Furthermore, the agent to be sprayed is not limited to pesticides, and any agent that can be sprayed in parallel with rice planting work may be used. For example, fertilizer may be used.

It is a schematic block diagram which shows the rice transplanter mounting type chemical distribution apparatus which concerns on one Embodiment of this invention. FIG. 2 is an enlarged perspective view showing a spraying operation control mechanism in the rice transplanter-mounted medicine spraying device of FIG. 1. It is a schematic block diagram which shows an example of the conventional rice transplanter mounting type chemical spraying apparatus. FIG. 4 is an enlarged perspective view showing a proximity switch in the rice transplanter-mounted medicine spraying device of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Spreading mechanism, 4 ... Power supply mechanism, 21c ... Bolt (operation opportunity part), 22 ... Proximity switch, 30 ... Spreading operation control mechanism, 31 ... Support frame, 32 ... Bar, 36 ... Partition wall, S ... Seedling stand

Claims (2)

It is a rice transplanter-mounted drug spraying device that sprays the drug in parallel with the rice planting operation, and is operated using a spraying mechanism for spraying the drug and a reciprocating operation of a seedling platform provided in the rice transplanter, A spraying operation control mechanism for intermittently performing the spraying of the medicine by the spraying mechanism in synchronization with the planting operation,
The spraying operation control mechanism is attached facing the front surface of the seedling platform, and is opposed to the seedling platform and an operation trigger portion that reciprocates with the seedling platform and triggers the operation of the spraying mechanism. attached to planting machine body, Bei example a switch is turned on and off are switched by the actuating trigger part moves along with the seedling stage reciprocating movement,
The seedling stage is provided with a partition wall on the front surface of the seedling stage for partitioning the strip on which the seedbed is set,
The rice sprayer-mounted medicine spraying device, wherein the spraying operation control mechanism includes a support frame that supports the operation trigger part, and the support frame is fixed to the partition wall . The spraying operation control mechanism is supported by the support frame fixed to the seedling platform, and supported by the tip of the support frame, and includes the operation trigger unit and reciprocates together with the seedling platform so that the operation trigger unit is The rice transplanter-mounted medicine spraying apparatus according to claim 1 , further comprising a bar for switching the switch, the bar being supported at a distance of at least 10 cm from the seedling platform.

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