JP5081198B2 - Spraying device and spraying vehicle - Google Patents

Description

  The present invention relates to a spraying device for spraying fertilizer or the like on a field such as wheat, rice (paddy field), fruit tree, vegetable, lawn and the like, and a spraying vehicle including the spraying device.

  Conventionally, as a device for spraying granular fertilizer on a field such as wheat, rotating blades having axes parallel to the traveling direction are provided on both sides of the spraying device, and the granular blade is supplied to the rotating rotating blades. A device has been proposed in which fertilizer is blown in the left-right direction of the spraying device by applying rotation and fertilization is performed in a predetermined range of the field (Patent Document 1).

  Further, the fertilizer is provided with a circular fan having a vertical rotation axis orthogonal to the traveling direction, and by supplying granular fertilizer to the fan, the fertilizer is fed in the left-right direction of the fertilizer by rotating the fan. An apparatus for spraying has been proposed (Patent Documents 2 and 3).

  Moreover, the apparatus which provides a long spreading pipe in the left-right direction of a spreading apparatus, positions this spreading pipe in the upper part of the wheat of a field, and spreads a fertilizer downward from this spreading pipe is proposed (patent document 4).

JP2008-301895 JP-A-7-203735 Jongko Sho 43-17655 JP 7-227191 A

  By the way, in the apparatus of Patent Document 1, since fertilizer is sprayed in the substantially horizontal direction from the left and right rotating blades, when the plant grows taller, such as wheat, the plant in which the fertilizer to be sprayed is located in the foreground This causes a problem that sufficient fertilization is difficult to be applied to plants located far from the rotating blades. In addition, fertilizers scattered in the horizontal direction may abruptly contact the plant stem and damage the plant stem.

  In the devices of Patent Documents 2 and 3, since fertilizer is sprayed by a single fan at the center, there is a risk that the fertilizer may be randomly sprayed in directions other than the left-right direction, and efficient fertilization is difficult to be performed. There is a problem. Further, since the spraying is skipped at a considerable speed in the horizontal direction, there is a problem similar to the above.

  In the apparatus of Patent Document 4, the above problem is solved in that it can be sprayed from the upper part of the plant by raising and lowering the spraying tube itself, but the left and right spraying range depends on the length of the spraying tube. When the spraying device is realized, the device becomes large, and when the plant exceeds the upper limit position of the spraying tube, there is a problem that it is difficult to move in the field with the spraying tube being spread.

  The present invention has been made in view of the above-described conventional problems, and even when a plant grows up and becomes tall, it can be sprayed with fertilizer and the like without any problem, and from the front position to the left or right direction The object is to realize a spraying device that can apply fertilization evenly to distant locations.

  Another object of the present invention is to provide a spreader vehicle equipped with a spraying device that can realize efficient spraying of fertilizer and the like over a wide range.

In order to solve the above object, the present invention
1stly, a granular material storage part, the sending roller part which sends out the granular material stored in this storage part, and the side spreading part which spreads the granular material sent from the sending roller part in the air are used as a machine frame. In the spraying device constituted by fixing, the rotary blade is rotatably supported in the housing, and the side spraying portion is formed by forming a side opening on the side surface on the rotational direction side of the rotary blade in the housing. And forming the granular material supplied from the granular material storage unit into the enclosure by the rotation of the rotary blades so as to be scattered from the side opening, and the outer edge of each rotary blade is the side surface of the enclosure The rotary blade drive motor is connected to the rotary shaft of the rotary blade so as not to come into contact with the inner side surface, and the upper surface continuous with the side opening of the housing is connected to the side opening. Communicating upper surface A guide plate is formed upright along the edge of the upper surface enlarged opening, and a curved guide plate that is curved along the rotational direction of the rotary blade is provided on the lower side of the side opening. side scatter part are those which are fixed to the machine frame in a state in which the side opening is inclined to the horizontal position or et lower direction, the upper surface of the granules supplied to the casing by the rotation of the rotary blade It is comprised by the spreading | diffusion apparatus characterized by being comprised so that it may scatter to diagonally upward via an enlarged opening part and the said side surface opening part.

  The machine frame can be constituted by, for example, a U-shaped mounting plate (15a), a U-shaped fixed angle (31), a mounting angle (33), and the like. The said granular material storage part can be comprised by a tank (8), for example. The granular material is, for example, granular fertilizer. The feed roller portion can be constituted by, for example, a fertilizer feed roller (9), lower hopper portions (10a, 10b), hoses (11a, 11b), and the like. The outer edge of the rotary blade can be constituted by the other edge (24b ') of the blade plate (24). The said side spreading | diffusion part can be comprised by the side spreading | diffusion part (12a or 12a '). The guide plate can be constituted by an upright piece (29). If comprised in this way, a granular material can be scattered diagonally upwards via the upper surface expansion opening part and a side surface opening part by rotation of a rotary blade, Thereby, granular materials, such as fertilizer, from the upper part of a plant in a field It can be sprayed by dropping, and it can prevent a situation such as damaging a plant (crop) stalk or the like by vigorously flying the granular material in the lateral direction. In addition, since the outer edge of the rotary blade is disposed at a predetermined distance from the side surface of the enclosure, the granular material scattered to a long distance by the rotary blade and the middle distance by separating from the rotary blade on the way The granular material to be scattered and the granular material to be separated from the rotary blades at an initial stage and to be thrown at a short distance are mixed, so that the granular material can be uniformly distributed from a long distance to a short distance.

  Second, at least two spraying devices are juxtaposed on the horizontal support rod in the left-right direction, and the side openings of the respective side spraying portions are arranged symmetrically so that they face the left side and the right side, respectively, The first aspect of the present invention is configured such that the granular material is sprayed diagonally upward left by the side spraying unit, and the granular material is sprayed diagonally upward and right by the side spraying unit on the right side. It is composed of a spraying device.

  The horizontal support rod in the left-right direction can be constituted by, for example, a horizontal square bar (5). Each said side spreading | diffusion part can be comprised by the side spreading | diffusion part (12a, 12a '), for example. If comprised in this way, since a granular material can be sprayed in the diagonally left upward direction and diagonally right upward direction, for example, granular materials, such as a fertilizer, are dropped from the upper part of a plant over the wide range of the horizontal direction in a farm field. It is possible to spray the fertilizer appropriately without damaging the plant even at the time of the short sprout or at the time of growing to some extent.

  3rdly, between the said left and right side spreading | diffusion parts, the downward spreading part which spreads the granular material sent out by the sending roller part from the granular material storage part downward is provided, It is characterized by the above-mentioned. It is comprised by the spreading | diffusion apparatus of the said 2nd description.

  The downward spraying part can be constituted by downward spraying parts (12b, 12b '). If comprised in this way, a granular material can be sprayed below also in the downward spraying part of a center part, and granular materials, such as a fertilizer, can be sprayed in the left-right direction including a center part.

  4thly, it is comprised by the spreading | diffusion apparatus in any one of the said 1st-3rd characterized by changing the rotational speed of the said rotary blade drive motor.

  If comprised in this way, the scattering distance of a granular material can be adjusted by changing the rotational speed of a rotary blade drive motor.

  Fifth, a roller drive motor for rotating the roller of the delivery roller unit is provided, and the rotation speed of the roller drive motor can be changed, and the roller drive corresponding to the rotation speed of the rotary blade drive motor is provided. It is comprised so that the rotational speed of a motor can be changed, It comprises by the said dispersion | spreading apparatus characterized by the above-mentioned.

  With this configuration, for example, when the rotary blade drive motor is set at a high speed, it is necessary to supply more particulate matter to the side spraying unit than at the medium speed or low speed. By setting the motor also at a high speed, it is possible to supply an amount of particulate matter corresponding to the flight distance to the side spraying unit.

  Sixth, an open / close shutter is provided between the granular material storage unit and the delivery roller unit, and the open / close shutter of either the left or right granular material storage unit is closed to disperse the granular material only in either the left or right direction. It is comprised so that it may obtain, It comprises with the spreading | diffusion apparatus in any one of said 2nd-5th characterized by the above-mentioned.

  If comprised in this way, according to the shape of a farm field, arrangement | positioning, etc., it can carry out easily that a granular material is sprayed only to either the left or the right, for example.

  7thly, it is a dispersion | distribution vehicle which comprises the said dispersion | spreading apparatus of said 1st, Comprising: As for the said dispersion | distribution apparatus, the side opening part of the side dispersion | spreading part is located in the right side or the left side with respect to the advancing direction of the said dispersion | distribution vehicle And the side opening of the spraying device is fixed to the spraying vehicle in a state inclined slightly downward from a horizontal position. Consists of cars.

  Eighth, a spreader vehicle including the spraying device according to any one of the second to sixth aspects, wherein side opening portions of two side spraying units of the spraying device are in a traveling direction of the sprayer vehicle. The side opening of each spraying device is fixed to the spraying vehicle in a state inclined slightly downward from a horizontal position. It is comprised with the dispersion | distribution vehicle which comprises the dispersion | spreading apparatus which performs.

  The above-mentioned spreading car can be constituted by a spreading car (2). The state inclined slightly downward from the horizontal position can be a state where the side opening is inclined 45 degrees downward from the horizontal position, for example. If comprised in this way, it can spread by dropping granular materials, such as a fertilizer, from the upper direction of a plant over a wide field in a field with a spreader. Thereby, a granular material can be appropriately sprayed irrespective of the growth time of a plant, ie, the height of a plant. In addition, by inclining the side opening of the spraying device slightly downward, the granular material can be scattered at an appropriate angle to the upper left or upper right, so that the granular material draws an arc upward. It can be sprayed by scattering and dropping from above the plant.

  Ninth, the support wheel is provided on the spreader wheel, the support device is supported on the support frame, and the support frame can be moved up and down. It is comprised with the dispersion | spreading vehicle which comprises this dispersion | spreading apparatus.

  The support frame can be constituted by a left-right frame (2b), for example. For example, the support frame can be raised and lowered by a movable frame (2b ') or the like. If comprised in this way, the height of a side spreading | diffusion part and a downward spreading | diffusion part can be adjusted according to the height of the plant of a field, and a granular material can be spread | dispersed from an optimal position.

  Since the present invention is configured as described above, the granular material can be sprayed by dropping the granular material such as fertilizer from the upper part of the plant in the field. Even when the height of the plant becomes high, it is possible to efficiently spread particulate matter such as fertilizer over a wide range without damaging the stems and leaves of the plant.

  In addition, by spraying the granular material from the side spraying portion with the rotary blade, it is possible to spray the particulate material such as fertilizer uniformly from a long distance to a short distance.

  Moreover, by changing the rotational speed of the drive motor of the rotary blade, the scattering distance of the granular material can be adjusted, and the spraying range can be easily adjusted according to the scale of the field.

  In addition, by inclining the side opening of the spraying part slightly downward, the granular material can be scattered at an appropriate angle to the upper left or upper right, so that the granular object draws an arc upward. It can be properly sprayed by scattering and dropping from above the plant.

  In addition, the amount of particulate matter supplied to the side spraying unit can be adjusted by changing the rotation speed of the roller of the delivery roller unit corresponding to the spraying distance of the side spraying unit. It is possible to set an appropriate supply amount to the side spraying unit.

  In addition, by closing the open / close shutter of any of the spraying devices, it is possible to easily spray one side of the particulate matter.

  In addition, according to the spreader of the present invention, it is possible to perform a wide range of fertilizer spraying and the like not only in wheat fields and the like, but also in paddy fields.

It is a side view of the spreading vehicle to which the spreading apparatus concerning the present invention is applied. It is a partial cross section side view of the spreader of an apparatus same as the above. It is a front view of the spreading vehicle to which the same apparatus is applied. (A) is a front view of the spreading | diffusion part of an apparatus same as the above, (b) is side sectional drawing of the spreading | diffusion part. It is a perspective view of the rotary blade of the same apparatus. It is a front view of the spreading machine of the spreading vehicle which applied the apparatus same as the above. It is an electric circuit diagram which shows the electrical structure of the dispersion | spreading part of an apparatus same as the above. It is a figure which shows the condition where fertilizer is spread | dispersed in a farm field (wheat) by the same spreading vehicle. It is side surface sectional drawing of the distribution part of an apparatus same as the above. (A) is a figure which shows the condition which spreads a fertilizer to the wheat grown by the same apparatus, (b) is a figure which shows the condition which spreads a fertilizer to the sprout of wheat by the same apparatus. It is a top view of the distribution part of an apparatus same as the above. It is an enlarged front view of the spreading machine which has a downward spreading part. (A) is a cross-sectional view of the spreader in the vicinity of the shutter showing the shutter in the spreader at both ends, and (b) is a cross-sectional view of the spreader in the vicinity of the shutter showing the divided shutter in the spreader in the center. is there. It is a figure which shows the condition which spreads fertilizer in a farm field (paddy field) with a dispersion car same as the above. It is a figure which shows the condition which performs one-side spraying with the same spreading vehicle.

Hereinafter, the spraying apparatus 1 which concerns on this invention is demonstrated in detail.
FIG. 1 is a side view showing a state in which the spraying device 1 is set on a front portion 2a of a spraying vehicle 2 made of agricultural chemicals or the like. In this figure, the dispersion wheel 2 has a front wheel 3a (two wheels) and a rear wheel 3b (two wheels), and has a spray pipe 4 for agricultural chemicals or the like extending horizontally in the left-right direction (in FIG. The tube 4 is shown to be folded rearward from the fulcrum 4a along the vehicle body). In the field, the spray tube 4 is opened to the left and right with the fulcrum 4a as a base point, and downward from a plurality of locations along the tube 4. Agricultural chemicals are sprayed. Such a spreading vehicle 2 is a so-called riding management machine that performs various management operations such as spraying agricultural chemicals in a field.

  Considering that the length of one of the spray tubes 4 is 7 m at the maximum and the vehicle width is approximately 1 m, the range of approximately 15 m at the maximum (left spray tube 7 m + front wheel 3a 1 m + right) Has the ability to spray pesticides etc. on the spray tube 7m).

  On the upper surface of the left-right frame 2b (see FIG. 3) of the front portion 2a of the spreader wheel 2 (see FIG. 2), the lower portions of the two L-shaped angles 7 and 7 are fixed upright with bolts and nuts B. A horizontal square bar 5 having a length substantially the same as that of the left-right frame 2b is fixed to the front surfaces of the upper ends of the angles 7 and 7 by bolts and nuts B. Then, a mounting tube 6a at the rear end of the front / rear direction support angle 6 is inserted through the horizontal square bar 5, and the angle 6 is formed in the left / right direction recess 6b ′ of the recessed mounting portion 6b provided on the upper surface of the front end. It is fixed horizontally with the facing upward.

  As shown in FIG. 3, the front and rear support angles 6 are fixed with two at a predetermined interval on the left side and two at a predetermined interval on the right side with respect to the center line P of the horizontal square bar 5. In the left and right concave portions 6b 'and 6b' of the concave mounting portions 6b and 6b of the two left support angles 6 and 6, a short horizontal support rod 14a for supporting the below-mentioned spreaders 7a and 7b is placed. The bolts and nuts B are respectively fixed to the left and right recesses 6b 'and 6b', and the left and right recesses 6b 'and 6b' of the concave mounting portions 6b and 6b of the two right support angles 6 and 6 are described later. A short horizontal support rod 14b for supporting the spreaders 7c and 7d is placed and fixed to the left and right recesses 6b 'and 6b' by bolts and nuts B.

  Thus, as shown in FIG. 3, the spraying device 1 has four units 7a, 7b, 7c, and 7d arranged in a horizontal direction at regular intervals on the horizontal square bar 5 in one unit. It is composed. In addition, as will be described later, fertilizer is spread from the side spreader 12a of the leftmost spreader 7a toward the upper left obliquely (maximum reach of fertilizer is about 7 m, region E1) (see FIG. 8), and the right end is spread. The fertilizer is spread from the side spreader 12a ′ of the machine 7d diagonally upward to the right (the maximum reach of the fertilizer is about 7 m, region E2), and the lower is provided at the lower ends of the two spreaders 7b and 7c in the center. By spreading fertilizer downward from the direction spreading parts 12b, 12b ′ (range of about 1 m in the left-right direction, region E3), the entire range in the left-right direction is about 15 m (left 7 m + center 1 m + right 7 m) It is possible to spread fertilizer evenly.

  The spreaders 7a and 7b are vertically supported by a single short horizontal support rod 14a with a pair of U-shaped mounting plates 15a and 15b. The short horizontal support rod 14a is as described above. The spreader wheel 2 is fitted and fixed on the left and right concave portions 6b 'and 6b' of the concave mounting portions 6b and 6b at the front ends of the front and rear support angles 6 and 6 and fixed with bolts and nuts B. Is fixed to the left side of the front portion 2a (see FIG. 3).

  The spreaders 7c and 7d are supported upright with a pair of U-shaped mounting plates 15c and 15d on one short horizontal support rod 14b, and the short horizontal support rod 14b is as described above. Are fitted and fixed on the left and right concave portions 6b 'and 6b' of the concave mounting portions 6b and 6b at the rear ends of the front and rear support angles 6 and 6 and fixed with bolts and nuts B, thereby 2 is fixed to the right side of the front part 2a (see FIG. 3).

  The left-right frame 2b of the spreader wheel 2 is supported by a movable frame 2b ′, and the movable frame 2b ′ can be rotated about a support shaft 2b ″ by a lift drive motor M5 (see arrows G, FIG. 1). (Y direction), the horizontal frame 2b can also be moved up and down in the directions of arrows I and J. (Refer to the dotted lines in FIGS. 1 and 2.) Therefore, the spraying device 1 attached to the horizontal frame 2b is also The horizontal frame 2b can be moved up and down in the directions of arrows I and J. This adjusts the heights of side sprayers 12a and 12a 'and downward sprayers 12b and 12b' which will be described later. In general, the height of these spraying parts can be adjusted to the upper end position (length) of the plant in the field.

  Since the basic configuration of these spreaders 7a to 7d is the same, the structure thereof will be described below using the spreader 7a (FIG. 2) as an example, and the other spreaders 7b to 7d are the same in the same part. The reference numerals are attached and their explanation is omitted for the sake of convenience. It should be noted that differences in each spreader, such as the shutter and hose routing configurations, will be described each time.

  In the figure, reference numeral 8 denotes a tank. In the case of this embodiment, granular fertilizer is put into the tank 8. An opening 8a is provided at the lower end of the tank 8 (see FIG. 13), and the introduced fertilizer falls from the opening 8a to the fertilizer feed roller 9 below. The outer peripheral surface of the feed roller 9 is provided with a recess 9a for storing fertilizer and feeding it downward. The fertilizer charged into the recess 9a is sent downward by the rotation of the roller 9 in the direction of arrow A. Then, it is dropped on two lower popper portions 10a and 10b arranged in parallel in the left-right direction below the roller 9. And hose 11a, 11b is each connected to the lower end opening of this hopper part 10a, 10b.

  The opening 8a is provided with a shutter S that is a rectangular plate that opens and closes the opening 8a (FIG. 13A). The shutter S is slidable back and forth along the rails 46 and 46 by being guided by the left and right edge guide rails 46 and 46 of the horizontal frame 15a ′ (15d ′) that supports the tank 8. By closing the shutter S, the supply of the fertilizer in the tank 8 to the feed roller 9 can be stopped. The shutter S can slide forward to open the opening 8a, and slide backward to close the opening 8a. The structure of the shutter S is the same in the spreaders 7a and 7d at both ends, but is slightly different in the spreaders 7b and 7c at the center.

  In the spreaders 7b and 7c at the center, as shown in FIG. 13B, the shutter S is separated into left and right shutters S1 and S2 that divide the opening 8a into left and right, and can be opened and closed independently. It is configured to be able to. That is, the horizontal frame 15b ′ (15c ′) is provided with a center guide rail 47 in addition to the left and right side guide guide rails 46, 46. The both open / close shutters S1, S2 are provided with the left and right guide rails 46 and the center guide. By being guided by the rail 47, it can be opened and closed independently along both rails.

  The reason why the shutters S1 and S2 are divided into left and right in the spreaders 7b and 7c in the central part in this way is described in terms of the spreader 7b. Among the fertilizers that fall downward from the opening 8a, the fertilizers that fall from the left side. The fertilizer falls from the right side among the fertilizers that fall to the side spraying part 12a via the left hopper part 10a by the left side part of the feed roller 9 and are sprayed obliquely upward to the left, and fall downward from the opening 8a. Is sprayed downward from the downward spraying part 12b via the right hopper part 10b from the right part of the feed roller 9, so that the fertilizer supplied to the side spraying part 12a and the downward spraying part 12b are supplied. It is configured so that fertilizer can be supplied and stopped independently.

  That is, by opening the shutter S1 and closing the shutter S2, it is possible to stop only the fertilizer supplied to the downward spraying portion 12b while supplying the fertilizer to the side spraying portion 12a, and vice versa. This is because only the fertilizer supplied to the side spraying unit 12a is stopped, and the fertilizer is supplied only to the downward spraying unit 12b. The same applies to the spreader 7c.

  Thus, by providing the shutters S, S1, and S2 for the spreaders 7a to 7d, for example, when spraying only the left side and the lower side and stopping the right side spray, the shutters S and shutters of the spreaders 7a and 7b are used. This can be realized by opening S1 and S2, opening only the shutter S1 of the spreader 7c, and closing the shutter S2 of the spreader 7c and the shutter S of the spreader 7d. Conversely, when only the right side and the lower side are sprayed and the left side spraying is stopped, the shutters S1, S2 and shutter S of the spreaders 7c and 7d are opened, and only the shutter S2 of the spreader 7b is opened, and the above spraying is performed. This can be realized by closing the shutter S1 of the machine 7b and the shutter S of the spreader 7a.

  A common drive shaft 9 ′ is provided at the center of the fertilizer feed roller 9 of the spreader 7b adjacent to the fertilizer feed roller 9 of the spreader 7a, and the drive shaft 9 ′ penetrates the mounting plate 15a. And it protrudes to the left from the mounting plate 15a at the left end, and the protrusion is configured to be rotationally driven by the roller drive motor M1. As a result, the feed rollers 9, 9 of the spreaders 7a, 7b are simultaneously rotated in the same direction (arrow A direction) by the drive shaft 9 '.

  Similarly, a common drive shaft 9 'is provided at the center of the fertilizer feed rollers 9, 9 of the spreader 7c and the spreader 7d, and the drive shaft 9' passes through the mounting plate 15d. It is provided so as to protrude rightward from the mounting plate 15d at the right end, and the protrusion can be rotationally driven by the roller drive motor M2. Thereby, the feed rollers 9 and 9 of the spreaders 7c and 7d are simultaneously rotated in the same direction (arrow A direction) by the drive shaft 9 '.

  The fertilizer charged into the hoses 11a and 11b of the spreader 7a is guided downward by the hose, and the left upper direction of the spreader wheel 2 by the rotating blades 13 in the side spraying portion 12a provided at the lower end of the hose ( It is configured to fly in the direction of arrow C in FIG. 3 (see FIGS. 8 and 9).

  In each of the spreaders 7a to 7d, the configuration of the spreaders 12a and 12b of the two left spreaders 7a and 7b and the configuration of the spreaders 12a ′ and 12b ′ of the two right spreaders 7c and 7d are the center line P. It has a left-right symmetric structure with the center at the center. That is, the lateral spreading parts 12a and 12a 'at the left and right end parts fly the fertilizer in the diagonally upward left direction and the diagonally upward right direction by the rotating blades 13 (see FIG. 8). 12b and 12b ′ are sprayed downward by the hoses 11d and 11e, respectively (see the direction of arrow D in FIG. 3 and FIG. 8).

  The lower ends of the two hoses 11a and 11b of the spreader 7a are connected to the hose support pipe 26 of the side spreader 12a, and the inner ends of the two hoses 11c and 11d of the spreader 7b. The hose 11c on the spreader 7a side connected to the lower hopper portion 10a is similarly connected to the hose support pipe 26 of the spreader portion 12a, and falls through each hose 11a, 11b, 11c. The fertilizer is scattered in the upper left direction by the rotary blade 13.

  The other hose 11d connected to the lower hopper portion 10b of the spreader 7b has a lower end connected and fixed to the downward spreading portion 12b, and the fertilizer that has fallen through the hose 11c 11d is sprayed downward from the lower end 11d ′ (arrow D direction).

  The lower ends of the two hoses 11g and 11h connected to the lower hopper portions 10a and 10b of the spreader 7d are connected to the hose support pipe 26 of the side spreader 12a ′, and the spreader 7c. Among the two hoses 11e and 11f, the hose 11f connected to the lower hopper portion 10b on the spreader 7d side is similarly connected at its lower end to the hose support pipe 26 of the side spreader portion 12a ′. The fertilizer that has fallen through the hoses 11f, 11g, and 11h is blown diagonally right upward (in the direction of arrow C ′ in FIG. 3) by the rotating blades 13 of the side spraying portion 12a ′ (see FIG. 8).

  Further, the other hose 11e connected to the lower hopper portion 10a of the spreader 7c is connected and fixed to the downward spreading portion 12b ′, and the fertilizer that has fallen through the hose 11e is the lower end 11e of the hose 11e. Sprinkled downward from '(arrow D direction).

  As shown in FIG. 8, the fertilizer application area is a region E1 having a maximum length of about 7 m from the position near the left side of the spreader 2 to a distant position in the side application unit 12a, and in the side application unit 12a ′. The region E2 is a maximum of about 7 m from the position on the right side of the spreading wheel 2 to the far position. Further, the center spraying part 12b is in the lower range e1, and the center spraying part 12b is in the lower range e2 (FIG. 3), and these spraying parts 12a, 12a ′, 12b, 12b ′ make the left side centering on the spreading car 2 The fertilizer can be sprayed in a total range of 15 m, 7 m in the middle, 1 m in the center (E3 = e1 + e2), and 7 m on the right side.

  Next, the structure of the side spreading parts 12a and 12b will be described in detail. The side spraying unit is composed of rotary spraying units 12a and 12a 'that use rotating blades, and drop-type downward spraying units 12b and 12b' that do not use rotating blades. Since these spreading parts are provided symmetrically with respect to the center line P as described above, the left side spreading parts 12a and 12b will be described, and the right spreading parts 12a 'and 12b' are the same. Parts are denoted by the same reference numerals, and description thereof is omitted for convenience.

  As shown in FIG. 4 (a), the side spreading part 12a is composed of a rotary blade housing case (housing) 21 and a motor housing case 22 connected to the housing 21. A rotary shaft 22 a of a rotary blade drive motor M <b> 3 fixed inside the housing 22 is disposed at substantially the center in the longitudinal direction of the rotary blade housing housing 21. In addition, the rotary blade drive motor of the other side scatterer 12a 'is referred to as a rotary blade drive motor M4 (see FIG. 7).

  The rotating shaft 22a is provided with vane plate fixing short plates 23 radially at three positions with an angle of 60 degrees when viewed from the axial direction (see FIG. 5). A vane plate (rotary vane) 24 is fixed to each 23 by bolts and nuts B, respectively. Reference numerals 25 and 25 are support disks for supporting both end portions of the blade 24.

  Each vane plate fixing short plate 23 is made of, for example, metal, and a vane plate 24 is fixed to each short plate 23. The vane plate 24 is composed of a rubber plate vane plate 24a and a metal plate 24b fixed in a stacked state so as to cover a substantially front surface side of the rubber plate, and the metal plate 24b is a rotating direction of the rotary vane. On the side. The double structure of the rotating blades of the rubber plate 24a and the rotating blade 24b as described above is that the elastic force of the rubber plate 24a and the hardness of the metal plate 24b are used to make the rotating blades from a short distance to a long distance. This is because the fertilizer can be properly distributed evenly.

  Each vane plate 24 has a rectangular shape, and one edge 24a ′ in the longitudinal direction thereof is fixed to the fixed short plate 23 with a bolt and a nut B, and the other end (outer edge portion) 24b ′ in the longitudinal direction. Is placed so as to be close to the inner wall of the rotary blade housing 21. As shown in FIG. 4B, the other end 24b ′ of the slat 24 has a predetermined interval with respect to the inner wall of the casing 21 (the distance between the inner wall and the other end 24b ′ is larger than the particle size of granular materials such as fertilizers). And a predetermined distance on the curved guide plate 27 to be described later (an interval at which the distance between the surface of the guide plate 27 and the other end 24b ′ is larger than the particle size of fertilizer, etc.). It is configured to be in a position where it does not touch. If comprised in this way, when the said slat | blade 24 rotates, it engages with the fertilizer (arrow C1, C1 'of FIG. 8) skipped by rotation of the surface, and the slat 24, but on the way, the slat 24 The fertilizer (arrows C2 and C2 ′ in FIG. 8) that is blown to a medium distance, for example, by moving away from the fertilizer and the initial stage of rotation of the slat 24 without engaging with the fertilizer or early detaching from the slat 24 The fertilizer (FIG. 8C3, C3 ′) that falls from the blade 24 and soars upward along the curved guide plate 27 but falls at a short distance, and as a result, from short distance to long distance, Fertilizer can be spread evenly (see FIG. 8).

  The rotary blade housing case 21 has an introduction port 21a along the longitudinal direction of the rotary blade 13 on the upper surface side, and the hose support pipe 26 that supports the tip of the hose at the introduction port 21a. Is protruding.

  Further, the surface of the housing 21 facing the introduction port 21a is a side opening 21b, and fertilizer is released from the side opening 21b by the rotation of the blade 24 (in the direction of arrow B). It is configured. As shown in FIG. 4A, the side opening 21b is formed from a substantially rectangular opening, and one end of the curved guide plate 27 is fixed to the lower side thereof. The curved guide plate 27 is curved on the other edge 27a side along the rotation direction of the rotary blade, and the other edge 27a is curved upward from the lower side of the opening 21b, along the curved surface. The fertilizer can be guided diagonally upward.

  Two cuts 28 and 28 are provided on the upper side of the side opening 21b with a predetermined interval (T) at the center thereof, and the portion between the cuts 28 and 28 is formed with respect to the upper surface of the casing 21. Standing pieces 29 are provided by bending at right angles until they are orthogonal to each other, whereby an upper surface enlarged opening 30 communicating with the side surface opening 21b is formed on the upper surface of the housing 21 (see FIGS. 4A and 11). ). The upright piece 29 is provided over substantially all the sub-sides (T) of the upper side, and as shown in FIG. 9, the fertilizer is left obliquely upward without blocking the fertilizer that is slanted upward by the rotary blade 13. It is provided to fly smoothly. Further, the upright piece 29 has a function of guiding the fertilizer flying obliquely upward to the left (arrow C direction) in the same direction.

  If the upright piece 29 and the upper surface enlarged opening 30 are not present, a part of the fertilizer that is blown obliquely upward to the left by the rotary blade comes into contact with the upper side of the opening 21b, thereby lowering (in the direction of arrow F, 9), the trajectory is corrected and dropped (see arrow F in FIG. 9), and the fertilizer that does not fly diagonally to the left, or the fertilizer whose trajectory has been corrected abuts on the fertilizer that flies diagonally upward. The trajectory was corrected and it was dropped down (arrow F ′ in FIG. 9). However, by providing the upright piece 29 and the upper surface enlarged opening 30, it becomes possible to fly the fertilizer diagonally upward to the left through the upper surface enlarged opening 30 formed by the upright piece 29, thereby FIG. 8. As shown, fertilizer can be spread from above plants such as wheat. That is, an upper surface enlarged opening 30 that communicates with the side surface opening 21 b is formed on the upper surface of the housing 21 that is continuous with the side surface opening 21 b, and a standing piece 29 is formed along the edge of the upper surface enlarged opening 30. Has been.

  As shown in FIG. 6, the side spreading part 12a has a mounting angle 33 on the lower surface part 31a of the U-shaped fixed angle 31 so that the inclination angle θ with respect to the horizontal line q of the upper and lower surfaces of the housing 21 is 45 degrees downward. Thus, it is fixed (see FIG. 4B). That is, the side opening 21b of the spraying device 1 is fixed to the spraying vehicle 2 in a state where the side opening 21b is inclined slightly downward from the horizontal position. Therefore, the side opening 21b is also installed with an inclination of 45 degrees below the horizontal as a whole. However, the rotary blade 13 rotates upward (in the direction of arrow B) from the bottom, so the introduction port 21a. The fertilizer introduced to the inside of the casing 21 from above is blown diagonally upward (in the direction of arrow C) by the rotary blade 13.

  At this time, the fertilizer that comes off the rotary blade and falls downward is guided upward by the curved guide plate 27, and further, the fertilizer is smoothly blown obliquely upward to the left by the presence of the enlarged opening 30 (see FIG. 9). ).

  When the side opening 21b is tilted downward by 45 degrees, the fertilizer jumps out at an appropriate angle to the upper left by the rotation of the rotary blade 13 in the direction of arrow B, rises relatively high, and then scatters to fall. Can be made.

  Therefore, as shown in FIG. 8, the fertilizer as a whole is once slanted upwards (in the case of the right side spreader 12 a ′, diagonally upwards right) once, and then a plant such as wheat while drawing a curved trajectory. It will fall from the upper part to the lower part, and not only for growing wheat Q and the like (FIG. 10 (b)), but also for a tall plant Q (FIG. 10 (a)), fertilizer from above N can be sprayed, and the plant will not be overthrown by fertilizers that flew vigorously from the lateral direction.

  Although the said embodiment is description about the side spreading | diffusion part 12a, about the side spreading | diffusion part 12a ', only the left-right symmetric shape, and the other structure and effect | action are the same. As described above, with respect to the right spreading unit 12a ', the direction in which the fertilizer flies is obliquely upward to the right (see arrows C1', C2 ', C3' in FIG. 8).

  In the downward spraying portion 12 b, the lower end 11 d ′ of the hose 11 d is fixed to the lower surface portion 31 a of the U-shaped fixed angle 31 with a fixed tube 32. Reference numeral 45 denotes a guide plate for preventing the fertilizer falling downward from the lower end 11d 'from falling backward.

  Therefore, the fertilizer induced by the hose falls from the lower end 11d 'of the hose 11d to the lower range e1 (see FIG. 3). The downward spraying portion 12b 'has the same configuration, and fertilizer is sprayed in the range of e2 downward from the hose lower end 11e'. In addition, the guide plate 45 similarly prevents the rearward fall. Accordingly, the fertilizer can be sprayed in the range (e1 + e2) of about 1 m between the front wheels 3a and 3a by the downward spraying part 12b and the spraying part 12b 'around the center line P.

  FIG. 7 illustrates the electrical configuration of the spraying device of the present invention. This figure is an electrical block diagram for driving roller drive motors M1 and M2 for driving the feed roller of the spreader according to the present invention and drive motors M3 and M4 for the rotary blades of the side spreaders 12a and 12a ′. It is. A spraying switch SW1 is connected to the battery 41 of the spraying vehicle 2, and a roller rotation switch SW2, a motor speed control circuit 43 for the fertilizer feed roller 9, and a side spraying unit are connected to the switch SW1 via an overcurrent control circuit 42. A motor speed control circuit 44 for 12a and 12a 'is connected. The motor speed control circuit 43 is provided with a speed changeover switch 43a for switching the rotation speed of the feed roller 9 to three stages of low speed, medium speed, and high speed. The motor speed control circuit 44 includes the spraying section 12a. , 12a ′ is provided with a speed changeover switch 44a for switching the rotational speed of the rotary blades 13 to three stages of low speed, medium speed and high speed. The motor speed control circuit 43 is connected to roller drive motors M1 and M2 via a transistor TR1, and the motor speed control circuit 44 is connected to rotary blade drive motors M3 and M4 via transistors Tr2 and Tr3, respectively. Has been. A load current detection circuit 48 of the motors M1 and M2 is provided between the drive motors M1 and M2 and the overcurrent control circuit 42, and a motor is provided between the drive motors M3 and M4 and the overcurrent control circuit 42. A load current detection circuit 49 of M3 and M4 is connected.

  Thus, by switching the speed changeover switches 43a and 44a, the voltage applied to the drive motors M1 to M4 via the transistors Tr1 or Tr2 and Tr3 is changed, and the rotation speed of the motors is changed. It is.

  Therefore, when the spraying switch SW1 is turned on, the rotating blade drive motors M3 and M4 for spraying rotate simultaneously at the speed set by the speed changeover switch 44a. When the roller rotation switch SW2 is turned on in this state, the drive motors M1 and M2 of the feed roller 9 are simultaneously rotated at the speed set by the speed changeover switch 43a. At this time, for example, when the rotational speed of the side spreading parts 12a, 12a ′ is set to “high speed”, the flying distance of the fertilizer is about 7 m on one side, and it is necessary to fly a large amount of the fertilizer accordingly. The roller speed changeover switch 43a is also set to "high speed", and the amount of fertilizer supplied from the roller to the spraying unit is set to the maximum amount. On the other hand, for example, when the rotation speed of the spraying parts 12a, 12a ′ is set to “low speed”, the flying distance of the fertilizer is about 2.5 m on one side (left about 2.5 m + center about 1 m + right about 2.5 m, left and right overall) About 6 m), and it is only necessary to supply a relatively small amount of fertilizer to the spraying unit, so the roller speed changeover switch 43a may also be set to "low speed". When the speed setting switch 44a is set to "medium speed", the fertilizer flying distance is about 4.5m on one side of the middle (about 4.5m on the left + about 1m on the center + about 4.5m on the right and about 10m on the entire left and right) Therefore, the speed changeover switch 43a may also be set to “medium speed”. In this way, by linking the rotation speed of the roller drive motor in accordance with the rotation speed of the rotary blade drive motor, the fertilizer application distance in the side application unit and the fertilizer application to the side application unit in the feed roller The supply amount can be set appropriately.

  Since the present invention is configured as described above, the operation of the present invention will be described below.

  As shown in FIG. 8 and FIG. 14, when the fertilizer is sprayed in the range of about 7 m on the left, about 7 m on the right, and about 1 m on the center by entering the farm field (FIG. 8 is the wheat field, FIG. 14 is the paddy field) with the spreader 2. explain.

  The speed changeover switches 43a and 44a are both set to "high speed", granular fertilizer is put into each tank 8 of the spraying device 1, the spraying switch SW1 is turned on, and the rotating blades of the side spraying units 12a and 12a ' Motors M3 and M4 that drive the motor 13 are driven to rotate at high speed. Further, when the roller switch SW2 is turned on, the fertilizer feed rollers 9 of the spreaders 7a to 7d rotate at high speed to guide the fertilizer in the tank 8 one by one downward, and each fertilizer passes through the hoses 11a to 11g. Are guided to the lower spraying portions 12a, 12b, 12a ′, 12b ′.

  The fertilizer that falls through the hoses 11a, 11b, and 11c falls into the housing 21 from the introduction port 21a of the side spraying portion 12a. Since the rotary blade 13 is rotating in the arrow B direction at high speed in the casing 21, the fertilizer is obliquely left upward from the side opening 21 b of the casing 21 by the blade plate 24 of the rotary blade 13 (in the direction of arrow C in FIG. 9). ).

  At this time, since the standing piece 29 and the enlarged opening 30 are provided on the upper side of the side opening 21b of the casing 21, the fertilizer that has been blown obliquely to the upper left is obliquely left upward through the enlarged opening 30. It is smoothly moved in the direction of arrow C in FIG. Therefore, the fertilizer falls on the upper side of the opening 21b and falls downward (in the direction of arrow F in FIG. 9), the progress of the fertilizer to be scattered upward is hindered by the fertilizer that is scattered downward, Falling downward (in the direction of arrow F ′ in FIG. 9) can be suppressed, and the fertilizer can be left obliquely upward as a whole. Therefore, as shown in FIG. 8, the fertilizer that is blown by the rotary blades 13 once falls high in the upper left direction and then falls to the field while drawing an arc. Of course, when the height is short (FIG. 10 (b)), even when the height is high (FIG. 10 (a)), the whole area of the horizontal region E1 is above the wheat Q. The fertilizer N can be sprayed so as to fall. Thereby, the fall of a plant, such as wheat, or the damage of a leaf by a fertilizer contact | abutting the stem, leaf, etc. of plants, such as wheat, can be prevented by flying a fertilizer in a horizontal direction.

  In addition, the fertilizer that is blown diagonally to the upper left from the side opening 21b is thrown away by the vane plate 24 (arrow C1 in FIG. 8), and is released from the vane during the rotation of the vane plate 24. Although it is blown to a medium distance (arrow C2 in FIG. 8) and further from the introduction port 21a to the blade plate 24, it is detached from the blade plate 24 at an early stage from the position near the introduction port 21a, and once along the curved guide plate 27 Although it is thrown upward, a thing that falls at a short distance (arrow C3 in FIG. 8) is generated, and a fertilizer that is blown to the middle position of each arrow is generated. As a result, in the entire range of the region E1, from a short distance Fertilizer can be spread evenly over long distances.

  In the above description, the operation of the spraying unit 12a has been described, but the same operation can be performed in the side spraying unit 12a ′ only by the spraying direction being obliquely upward to the right (arrows C1 ′, C2 ′, FIG. 8). C3 ').

  Furthermore, in the downward spraying portions 12b and 12b ', the fertilizer that has fallen through the hoses 11d and 11e can be dropped downward (in the direction of arrow D).

  Thus, as a result, the fertilizer can be spread over a wide range in a range of about 15 m in the left-right direction, about 7 m on the left, about 7 m on the right, and about 1 m in the center.

  Therefore, the fertilizer can be spread over a wide range by advancing the spreading wheel 2 forward while continuing the above spreading.

  When the field is narrower, the rotation speeds of the roller drive motors M1, M2 and the rotary blade drive motors M3, M4 are switched to medium speed or low speed by switching the changeover switches 43a, 44a to medium speed or low speed. The maximum reach distance can be reduced according to the size of the field while the fertilizer supply amount to the spraying unit is set to an appropriate amount. In this case, the maximum reach of the fertilizer (the distance to the arrows C1 and C1 ′ in FIG. 8) is reduced. In the reduced area, the fertilizer is dropped from above as in the above embodiment. It can be spread evenly.

  Further, by configuring the left-right frame 2b at the front portion of the spreader wheel 2 so that it can be moved up and down, the height of the spreaders 12a, 12a ', 12b, 12b' from the ground can be adjusted. Usually, it is preferable to set the height of the opening of the spraying portion so that it substantially coincides with the height of the upper end of the plant (FIGS. 8 and 14).

  On the other hand, in the spreader, for example, when fertilizer is spread only on the left side and the lower side, the shutters S2 and shutters S of the right two spreaders 7c and 7d may be closed. Then, since the fertilizer in the tank 8 is not dropped and supplied to the side spraying part 12a ′ in the spreaders 7c and 7d, only the left side and the lower side from the left side spraying part 12a and the downward spraying parts 12b and 12b ′. Fertilizer can be sprayed (see FIG. 15). When only the right side and the lower side are sprayed, the shutters S and S1 of the left spreaders 7a and 7b may be closed in the same manner.

  The necessity of fertilizer application only on the left side or only on the right side is very high due to the size and shape of the field, the surrounding buildings, the relationship with the adjacent fields, etc. While realizing, one-side spraying as described above can be easily performed. In addition, since no fertilizer can be scattered for long distances, no long rod-like instruments are used, so one-side spraying operation such as spraying one side of the spraying wheel close to the wall is also easily performed. be able to.

  As described above, according to the present invention, the granular material can be scattered obliquely upward through the upper surface enlarged opening portion 30 and the side surface opening portion 21b by the rotation of the rotary blade 13, and thereby wheat, rice, etc. in the field It can be sprayed by dropping granular materials such as fertilizer from the upper part of the plant, and it can prevent situations such as damage to plant stems, leaves, etc. by flying the granular materials vigorously in the lateral direction .

  Further, since the other end (outer edge portion) 24b ′ of the rotary blade 13 is arranged at a predetermined distance from the side surface of the casing, the granular material scattered to a long distance by the rotary blade 13 and the rotary blade 13 There are a mixture of granular materials scattered to a medium distance by separating on the way and granular materials that are separated from the rotary blades 13 at an initial stage and are blown to a short distance. Can be sprayed.

  Moreover, since the granular material can be sprayed in the diagonally upward left direction and the diagonally right upward direction, for example, the granular material such as fertilizer is sprayed by dropping from the upper part of the plant over a wide range in the horizontal direction in the field. It is possible to apply fertilizer appropriately without damaging the plant even at the time of short sprout and at the time of growing to some extent.

  In addition, the granular material can be dispersed downward in the central spraying portion, and the granular material such as fertilizer can be sprayed evenly in the left-right direction including the central portion.

  Moreover, the scattering distance of the granular material can be adjusted by changing the rotational speeds of the rotary blade drive motors M3 and M4.

  Also, by changing the rotation speed of the roller drive motor according to the fertilizer scattering distance in the spraying section, the amount of fertilizer supplied to the side spraying section can be adjusted according to the fertilizer scattering distance in the spraying section. it can.

  Moreover, it can spread by dropping granular materials, such as a fertilizer, from the upper direction of a plant over a wide range in a farm field with a spreading car. Thereby, a granular material can be appropriately sprayed irrespective of the growth time of a plant, ie, the height of a plant.

  Further, by inclining the side opening 21b of the spraying portions 12a and 12a 'slightly downward, the granular material can be blown at an appropriate angle to the upper left or the upper right, and the granular material has a circular arc upward. It can be sprayed appropriately by dropping it from above the plant.

  Also, by opening and closing the shutter, one side spraying only on the left or right side, or one side spraying on the left side and lower side, right side and lower side etc. can be easily realized, and fertilizer according to the arrangement, shape etc. of the field Can be easily realized.

  Moreover, in the said embodiment, although the case where the spreading | spreading apparatus which concerns on this invention was attached to a riding management machine was shown, you may attach not only to a riding management machine but to the front part of a tractor other passenger moving vehicles.

  In addition, for example, in the additional fertilization work of wheat, since a conventional fertilizer application machine cannot be put in the field during the growth period before cutting, the fertilization work can be performed only by manual work. For example, it is possible to apply fertilization work even if tall wheat grows by installing a spraying device on a spraying vehicle, eliminating the need for manual fertilization, and fertilizing up to a width of 15 m at a time. Since the work can be done, fertilization work time can be greatly shortened.

  Also in the case of rice fertilization work, especially after paddy rice planting, fertilization work in paddy fields was one of the fields where mechanization was delayed, but according to the present invention, the spraying device should be installed in the spreading car. Then, by putting the spreader in the paddy field (see Fig. 14), it is possible to efficiently perform a wide range of fertilization work in the paddy field. Similarly, in the paddy field, it is possible to eliminate the manual fertilization work, Since fertilization work can be performed at a maximum width of 15 m at a time, the fertilization work time can be greatly shortened.

  In addition, the amount of granular material supplied to the side spraying unit can be adjusted by changing the rotation speed of the roller of the delivery roller unit corresponding to the spraying distance of the side spraying unit, and it is appropriate according to the spraying distance. Supply amount of fertilizer and the like can be set. That is, the supply amount of fertilizer and the like to the side spreading unit can be changed in conjunction with the rotation speed of the rotary blades. Moreover, it can also comprise so that supply_amount | feed_rate of a fertilizer etc. to a side spreading | diffusion part can be automatically changed and controlled according to the rotational speed (scattering distance) of a rotary blade.

  Moreover, according to the spreader vehicle of the present invention, it is possible to perform a wide range of fertilizer spraying and the like extremely efficiently not only in wheat fields but also in paddy fields.

  In the above-described embodiment, an example in which four spreaders are provided as one unit (example in FIG. 3) is shown. However, two spreaders 7a and 7d having spreaders 12a and 12a ′ are provided as one unit. 2 may be installed, or only one spreading machine 7a having the spreading unit 12a may be installed in the spreading car 2.

  In FIG. 1, 34 is a cover of the tank 8, 35 is a handle of the spreader 2, 36 is a seat of the driver 37, 38 is an engine storage unit, 39 is a vehicle body frame, and in FIG. Fertilizer, Q is a plant such as wheat, and G is a field.

  The spraying device or the spraying vehicle according to the present invention can be used as a spraying device for fertilizers for wheat or rice. Moreover, it can be widely used not only as a fertilizer but also as a spraying device or a spraying vehicle for granular materials such as seeds.

1 Scattering device 2 Scattering wheel 2b Horizontal frame (support frame)
2b 'Movable frame 5 Horizontal square bar (horizontal support rod in the left-right direction)
8 Tank (particulate storage)
9 Fertilizer feed roller 10a, 10b Lower hopper part 11a-11h Hose 12a, 12a 'Side spreading part 12b, 12b' Downward spreading part 13 Rotating blade 21 Rotating blade housing (housing)
21b Side opening 24 Blade (rotary blade)
24b 'the other end (outer edge)
27 Curved guide plate 29 Standing piece (guide plate)
30 Upper surface enlarged opening 31 U-shaped fixed angle M1, M2 Roller drive motor M3, M4 Rotary blade drive motor M5 Lift drive motor S Open / close shutter S1, S2 Open / close shutter

Claims (9)

By fixing the particulate matter storage unit, the delivery roller unit for delivering the particulate matter stored in the storage unit, and the side spreading unit for dispersing the particulate matter delivered from the delivery roller unit in the air In the configured spraying device,
A rotating blade is rotatably supported in the housing, and the side spraying portion is formed by forming a side opening on a side surface of the rotating blade in the rotational direction of the housing,
The particulate matter supplied from the particulate matter storage unit into the enclosure is configured to be scattered from the side opening by rotation of the rotary blade,
The outer edge of each rotary blade is arranged at a predetermined distance from the inner surface so as not to contact the side surface of the housing, and a rotary blade drive motor is connected to the rotary shaft of the rotary blade,
Forming an upper surface enlarged opening that communicates with the side surface opening on the upper surface of the housing that is continuous with the side surface opening, and erecting a guide plate along an edge of the upper surface enlarged opening;
A curved guide plate that curves along the rotational direction of the rotary blade is provided on the lower side of the side opening,
The lateral spraying unit is one that is fixed to the machine frame in a state in which the side opening is inclined to the horizontal position or et down direction,
A spraying device, wherein the granular material supplied into the housing by the rotation of the rotating blades is configured to be scattered obliquely upward through the upper surface enlarged opening and the side surface opening. At least two of the above-mentioned spraying devices are juxtaposed on a horizontal support rod in the left-right direction, and are arranged symmetrically so that the side opening of each side spraying portion faces the left side and the right side,
The granular material is sprayed diagonally to the left and upward by the left side spraying part, and the granular material is sprayed by the right side spraying part and diagonally upward by the right side. The spraying device according to 1.   3. A downward spraying section for spraying the granular material sent from the granular material storage section by the feeding roller section downward between the left and right side spraying sections. Spraying device.   The spraying device according to any one of claims 1 to 3, wherein the rotation speed of the rotary blade drive motor is configured to be changeable. A roller drive motor for rotating the roller of the delivery roller unit is provided, and the rotation speed of the roller drive motor is configured to be changeable,
5. The spraying device according to claim 4, wherein the rotation speed of the roller drive motor can be changed according to the rotation speed of the rotary blade drive motor.   An open / close shutter is provided between the granular material storage unit and the delivery roller unit, and the open / close shutter of either the left or right granular material storage unit is closed so that the granular material can be scattered only in either the left or right direction. The spraying device according to any one of claims 2 to 5, wherein A spreading vehicle comprising the spreading device according to claim 1,
The spraying device is arranged on the spraying vehicle such that the side opening of the side spraying unit is located on the right side or the left side with respect to the traveling direction of the spraying vehicle,
The spreader equipped with a spreader, wherein the side opening of the spreader is fixed to the spreader in a state of being slightly inclined downward from a horizontal position. A spreading vehicle comprising the spreading device according to any one of claims 2 to 6,
While installing so that the side opening part of two side spreading parts of the above-mentioned spreading device may be located in the right side and the left side with respect to the traveling direction of the above-mentioned spreading car,
Each of the side surface openings of each of the spraying devices is fixed to the spraying vehicle in a state of being slightly inclined downward from a horizontal position.   The spreader according to claim 7 or 8, wherein the spreader is provided with a support frame, the support frame supports the spreader, and the support frame can be moved up and down. Scatter truck equipped.

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