JP2948296B2 - Head for dusting - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a head for dispersing granular materials such as seeds, fertilizers, pesticides, etc., and in particular, one head can be used for both diffusion dispersal and streaking. The present invention relates to a head for dispersing particulate matter.

[Prior art] In sprinkling seeds, fertilizers, pesticides, and other particulate matter, the conventional natural fall type disperses the particulate matter at the tip of a flexible pile connected to the lower part of a granular matter storage bag carried by a person. When spraying, attach the head for diffusion spraying, and when sowing streaks, replace it with a head for sowing, attach it, hold it downward, and fall naturally from the bag through the flexible pipe Granules,
He spreads or sows while walking.

This diffusion spray head has a plurality of radially arranged pipe bases fitted and connected to the flexible pipe and a peripheral wall section connecting the pipe base section and two parallel flat sections extending on both sides in the diameter direction of the pipe. And a diffusion spray head having a spray notch.

Some heads for sowing include a pipe base fitted and connected to the flexible pipe and a flat opening formed by crushing the tip from both sides.

[Problems to be Solved by the Invention] As described above, since the head for diffusion and the head for sowing are completely different in shape, different heads are used according to the respective applications. For this reason, replacement is troublesome, but when it is necessary to use both at the work site, it is necessary to carry two parts for spreading and spreading the streaks. Not only that, since other types of agricultural equipment are usually carried, it is not preferable that the number of parts increases even at one point.

In addition, the above-mentioned head for diffusion spraying is such that the granules are discharged from the notch for spraying on the peripheral wall portion of the head only by the natural fall energy of the granules from the granule storage bag carried on the back of the person. The flow of particulates into the diffusion spray head through the flexible pipe and head pipe base is
A part of it flows out forward from a notch near the tip of the peripheral wall of the head, and the other part is reflected by the uncut peripheral wall and hits other granular objects. , Is discharged to the outside through the notch on the side of the head and is spread and dispersed.

As can be seen from such a flow path, the granular material flowing out of the front notch has a relatively high speed, but the granular material flowing out from the side does not collide with the peripheral wall or even after the granular materials collide with each other. Because of the spill, the velocity is reduced and the amount of spill to the side is no longer sufficient than that to the front, and the head must be swung from side to side and up and down to provide sufficient lateral spreading. Spreading work was a labor intensive task.

Further, in the above-mentioned head for sowing, there is a flat opening formed by flattening the tip of the pipe for sowing, so that the granular material flows out in the vertical direction, The long side of the opening formed when crushed flat is larger than the pipe diameter, so when this opening is oriented vertically and particles are allowed to fall naturally, from inside the pipe base of the head , Granules fall into the opening of the part that is larger than the pipe diameter,
Due to this drop, the flow of the granular material, which had flowed smoothly until now, is disturbed, and there is a problem that the granular material is spread wider than a desired streaking width.

[Means for Solving the Problems] The present invention provides a method for dispersing and spreading streaks as described above without replacing the heads with one head.
And the function of discharging the particulate matter from the side of the head in the diffusion spraying, even if the energy is not so large as the natural fall, without reducing the energy. Allows the granular material to flow out to the side vigorously, and also allows the sowing of the desired width without disturbing the smooth flow of the granular material to the pipe base of the head with the head even when sowing the streaks. It was made.

A first head of the present invention for dispersing particulate matter comprises a head composed of a half for diffusion and a half for sowing, and a half for diffusion and dispersion. Once extended, and extended to both sides and expanded, near the tip, the bottom bottom is shallow toward the tip peripheral edge and the side peripheral edge, and the enlarged bottom portion, the tip peripheral edge and the side peripheral edge, The upper tip is made up of diffusion direction wings that are erected higher than the peripheral edge. The streaking half is extended toward the tip and the arc of the pipe half. The bottom of the pipe half where the side gradually decreases toward the tip and the center portion remains, a plate-like portion having a peripheral portion extending to both sides from the edge where both sides gradually decrease, and the both sides gradually decrease Standing on the edge,
The upper edge thereof is formed of a guide wall having a sufficient space between the diffusion bottom and the enlarged bottom of the diffusion / dispersion half, and the distal end and side edges of the enlarged bottom of the diffusion / dispersion half. An interval is created between the peripheral edge of the plate-shaped portion of the half for sowing, and two diffusion wings adjacent to the center of the distal end edge of the enlarged bottom portion of the half for diffusion and diffusion. It is located and configured on both outer sides of the tip of the guide wall of the half for sowing.

A second aspect of the spreading head according to the present invention is such that the tip peripheral edge portion and the side peripheral edge portion of the diffusion spray half are gradually higher toward the tip than the split portion of the pipe half portion. It is.

A third aspect of the spreading head according to the present invention is such that the tendency of the diffusion spreading half to become shallower toward the peripheral portion of the enlarged bottom portion is made smaller at the front end peripheral portion and the side peripheral portion.

According to a fourth aspect of the present invention, there is provided a spraying head having a slightly erected edge formed at a front edge and a side edge of the diffusion half. It is.

According to a fifth aspect of the present invention, each of the spreading direction wings at the peripheral edge of the tip of the half for spreading is as follows.
It is configured to face different directions radially.

According to a sixth aspect of the present invention, each of the spreading direction wings on the side peripheral edge of the half for spreading is as follows.
They are configured to face in the same direction.

A seventh aspect of the spreading head according to the present invention is such that each of the spreading direction wings of the spreading and scattering half is curved to be convex toward the tip.

According to an eighth aspect of the present invention, each of the spreading direction wings of the spreading and scattering half is configured to be concavely curved toward the tip.

According to a ninth aspect of the present invention, the upper edge of the guide wall, which is provided on both sides of the bottom of the pipe half of the streaking half, is near the pipe half. Are formed higher than both sides.

According to a tenth aspect of the spray head of the present invention, the upper edges of the guide walls erected on both sides of the bottom half of the pipe half of the streaking half are gradually reduced toward the tip, and near the tip, , Formed lower than both sides of the half,
Further, the tip is formed to be lower than the edge of the peripheral edge of the tip of the diffusion / spreading half.

An eleventh spray head according to the present invention is characterized in that the edge of the plate-shaped portion provided on the edge where both sides of the bottom portion of the pipe half of the streaking half are gradually reduced is attached to the diffusion half. Is narrower than the width of the periphery of the enlarged bottom portion.

[Function] In the present invention, the diffusion spraying half and the streaking half are united with each other to form the above configuration, so that the spreading and scattering half is placed on the lower side and the streaking half is placed on the upper side. If the user holds the head for scattering particles in his / her hand, the particles fall along the half of the diffusion spray and flow out radially from the tip.

The bottom of the diffusion spray half is an enlarged bottom that is spread out on both sides, and the bottom is shallow toward the leading edge and the side edge, so it falls along the diffusion spray half and The flowing particulate matter changes its flow direction along the slope of the bottom at a portion where the bottom becomes gradually shallower, and flows out and scatters from the head diagonally upward in front and diagonally upward in front of left and right.

Diffusion direction blades are erected on the periphery of the tip of the diffusion spray half and on the side periphery, so that particulate matter flowing down and flowing out is neatly spread out between each of the direction blades. Is done.

Also, in the half for sowing, both sides of the arc of the pipe half part gradually decrease toward the tip, and the tip forms a bottom part of the pipe half with the center part left, and the edge where both sides gradually decrease. Since the guide wall is erected in the
The water flows down along the bottom of the pipe half, and the width of the flow is narrowed straight by the guide wall, so that the water flows out from the tip of the head with almost no change in the flow direction.

Since the half for sowing is provided with a plate-like portion having a peripheral portion extending to both sides from the edge where both sides gradually decrease, the flow of the granular material flowing along the half for diffusion and spraying is provided. Is disturbed by the above-mentioned plate-shaped portion so as to be dispersed to a desired range.

Since the two diffusion wings at the center of the tip of the diffusion spray half are disposed on both outer sides at the tips of the two guide walls, they obstruct the flow of the granular material for sowing the streaks. There is no.

In the second aspect of the present invention, the tip peripheral edge and the side peripheral edge of the diffusion / dispersion half are gradually turned toward the tip,
Since the pipe is configured to be higher than the split portion of the pipe half, the depth of the enlarged bottom is increased, and the accumulation of the flow of the granular material is increased, so that the amount of change in the left-right direction is increased.

According to the third aspect of the present invention, since the inclination which becomes shallow toward the peripheral portion of the diffusion / dispersion half is made small at the front end and the lateral peripheral portion, the outflow direction of the particulate matter is only obliquely upward. Instead, it can be drained in a lower direction.

According to the fourth aspect of the present invention, a slightly erected erected edge is formed at the front end and the side peripheral edge of the diffusion / spreading half body, so that it will flow out along a shallow large slope of the enlarged bottom. A part of the granular material to be raised by the upper edge of the upright edge is slightly jumped up, and the granular material that is going to flow out along a small portion of the enlarged bottom having a shallow slope, When the lower surface contacts the standing edge, the lower surface is flipped obliquely upward.

According to the fifth aspect of the present invention, since the diffusion wings at the peripheral edge of the tip of the diffusion spray half are radially oriented in different directions, the granular material is relatively uniform in the range of the direction. It is spread to.

According to the sixth aspect of the present invention, since the respective diffusion wings on the side peripheral edge of the above-mentioned invention for spreading and scattering are installed in the same direction, the amount of particulate matter flowing into the side peripheral edge is limited to the tip peripheral edge. The particles are scattered in the same direction from the side, so that the diffusion of the particles from the front direction to the side direction is relatively uniform.

According to the seventh aspect of the present invention, since the diffusion direction wing is curved convexly toward the tip, the particulate matter passing between the adjacent direction wings has some side reflection. In addition, a more widespread spread to the left and right over the entire periphery is obtained.

According to the eighth aspect of the present invention, since the diffusion direction wing is concavely curved toward the tip, the granular material whose lateral direction is changed along the enlarged bottom portion of the diffusion spray half is By means of the spreading wings on the side edges, they are turned somewhat forwards, and the particles are spread without much scattering and within a certain width.

According to a ninth aspect of the present invention, the upper edge of the guide wall erected on both sides of the bottom of the pipe half of the streaking half is higher than the both sides of the half near the pipe half. Due to the formation, the particulate matter flowing down along the bottom of the pipe half from the storage bag through the flexible pipe is prevented from flowing out to the side outside of the guide wall.

According to a tenth aspect of the present invention, the upper edge of the guide wall erected on both sides of the bottom of the pipe half of the half for sowing is gradually reduced toward the tip, and near the tip, the pipe half is closed. Since it is lower than both sides, and at the tip, it is lower than the position of the edge at the periphery of the tip of the diffusion / dispersion half, the particulate matter flowing along the enlarged bottom of the diffusion / dispersion half is guided. The walls do not impede the flow.

According to an eleventh aspect of the present invention, the periphery of the plate-shaped portion provided on both sides of the bottom of the pipe half of the half for sowing the streaks is larger than the width of the periphery of the enlarged bottom of the diffusion / dispersion half. Since it is narrow, it does not hinder the scattering of the particulate matter flowing diagonally upward and diagonally forward and obliquely upward and downward along the enlarged bottom.

[Embodiment] Hereinafter, an embodiment of a head for scattering particulate matter according to the present invention will be described with reference to the drawings.

FIGS. 1 to 5 show an embodiment of the head for spraying particulate matter according to the present invention, and FIGS. 6 to 8 show half of a diffusion spray which is one of the assembled parts of the head for spraying particulate matter. FIG. 9 to FIG. 12 show an embodiment of a streaking half which is one of the assembled parts of the head for dispersing the granular material.

First, in FIGS. 1 to 5, reference numeral 20 denotes a pipe base, reference numeral 60 denotes a diffusion spraying half, reference numeral 90 denotes a streaking half, and in this embodiment, the pipe base 20 and the streaking half 90 are different from each other. It is continuously integrated, and the diffusion spraying half 60 is combined with this to constitute the particulate matter spraying head 10 of the present invention.

At the other end of the flexible pipe attached to the lower part of the storage bag for granular materials such as seeds, pesticides, fertilizers, etc. carried on the back of a person, with or without the extension auxiliary pipe, the head for spraying the granular materials The pipe base 20 of 10 is fitted, the head 10 or the extension auxiliary pipe is held in hand, and the granular material is dropped from the bag, and the granular material flows out from the tip of the head 10 forward. At this time, hold the diffusion spraying half 60 downward and the streaking half 90 upward and hold it with your hand.
If the tip of is turned obliquely downward, the particulate matter is spread and dispersed,
With the half sowing half 90 facing down and the half-spreading half 60 facing up, the granular material is streaked by doing the same as above.

The other reference numerals in the figures are the parts designated by the same reference numerals in the diffusion spraying half 60 shown in FIGS. 6 to 8 and the streaking half 90 shown in FIGS. 9 to 12 described later. The same parts are indicated.

Next, an embodiment of the diffusion / spraying half 60 will be described with reference to FIGS. 6 to 8. FIG. At one end of the diffusion / dispersion half 60, there is a pipe half 61, which is provided with an enlarged bottom 62 which extends in the direction of the tip of the head 10 and extends to both sides. I have. The distal end peripheral portion 63 and the side peripheral edge 63 of the enlarged bottom portion 62 are gradually made higher toward the distal end than the split portion of the pipe half portion 61, and near the distal end, the distal end peripheral portion 63 and the side peripheral edge 63. The bottom gradually becomes shallower toward the portion 64, and the slope of the shallower slope is smaller at the upper portion, that is, at the tip peripheral portion 63 and the side peripheral portion 64, than at the portion near the lower portion. . The tip peripheral edge 63 and the side peripheral edge 64 are radially oriented, spaced apart, and the diffusion direction blade 65 having an upper end higher than the peripheral edge is erected, and in this embodiment, In particular, the direction wing 65-
1 are oriented radially in different directions, and are provided with direction wings 65 erected on the side peripheral edge portion 64.
Each direction of -2 is different from the direction of the direction wing 65-1, but the directions of the direction wings 65-2 are oriented in the same direction. In this embodiment, FIG.
Each direction wing 65 is shown convexly curved toward the tip, and FIG. 2B shows each direction wing 65-3 curved concavely toward the tip. Where 60-1
Is a half body for diffusion and dispersion having the above-mentioned direction wing 65-3.

Further, the tip peripheral edge 63 and the side peripheral edge 64 are slightly erected at the edge over the entire peripheral edge, that is, 1/2 or less of the average particle diameter of the granular material to be sprayed, preferably. Is 1/4 to 1/6 of the height (particularly limited to these values, as they help the particles to fly up and down when they flow out of the head 10) However, an upright edge 66 is provided, and the upper end of the direction wing 65 is higher than the peripheral portions 63 and 64.

The reference numeral 67 in the figure is provided on the enlarged bottom 62,
A fastening projection 69 for fastening the diffusion spraying half 60 and the streaking half 90 with screws 68 (see FIG. 3), and reference numeral 69 is formed on the edge of the semicircular arc of the pipe half 61. The inner concave edge portion and the reference numeral 70 which are engaged with the end portion of the pipe base portion 20 are formed from the split portion of the pipe half portion 61 to a part of the edge portion connected to the side peripheral edge portion 64 of the enlarged bottom portion 62. Done,
An inner protruding edge portion protruded so as to be engaged with the edge of the pipe half portion of the streaking half portion 90.

Further, referring to FIGS. 9 to 12, an embodiment of the streaking half 90 will be described. In this embodiment, the half for streaking
Although the case where 90 is connected to the pipe base 60 is shown, the pipe base 20 may be connected to the pipe half 61 of the diffusion / dispersion half 60.

Reference numeral 91 denotes a pipe half, one end of which is connected to the pipe base 20 as described above, and the other end is formed with a peripheral edge 92 whose edge of the split part is gradually enlarged to the side. Further, the pipe half portion 91 is connected to the pipe half and extends toward the tip, and both sides of the circular arc of the cross section gradually decrease toward the tip and the bottom of the pipe half is left at the center.
93 is provided, and a plate-shaped portion 95 having a peripheral portion 96 extending to both sides from an edge 94 whose both sides gradually decrease toward the tip is provided, and furthermore, the edge of both sides described above is provided. In 94, the upper edge 98 is the enlarged bottom 62 of the diffusion spray half 60.
A guide wall 97 having a sufficient space is provided upright.

The two guide walls 97, 97 are spaced at the interval of the diameter of the pipe at the pipe half portion 91, and at the tip thereof, the diffusion spray half is formed.
The interval width is located between the direction wings 65-1 adjacent to the center of the distal end peripheral portion 63 of the 60. In other words, the direction wings 65-1 adjacent to the center are located on both outer sides of the tips of the two guide walls 97. The upper edge of the guide wall 97 has a sufficient interval as a whole with the enlarged bottom 62 of the diffusion / dispersion half 60, and is formed higher than both sides of the pipe half 92. In addition, the height is gradually reduced toward the tip, and further, near the tip, is formed lower than both sides of the half portion 91, and further at the tip, the edge of the peripheral edge of the tip of the diffusion / dispersion half is further reduced. It is formed lower than the position. Thus, a half 90 for sowing is formed. In this embodiment, the plate-like portion 95 is shown as a flat plate, but it may have a curved surface that is concave toward the inside or a curved surface that is convex toward the inside. You can do it.

In the drawing, reference numeral 99 denotes the diffusion / dispersion half 60 which protrudes from both outer sides of the guide wall 97 and is erected on the plate-like portion 95.
A fixing projection 100 for fastening and fixing the stud sowing half 90 with a screw 68 (see FIG. 3), and a reference numeral 100 is formed on the edge of the semicircle at the end of the pipe base 20, and is used for the diffusion spraying. Half body
Inner ridge engaging the inner concave edge 70 at the end of 61, reference numeral 10
Reference numeral 1 denotes an inner concave edge portion formed from both edges of the circular arc of the cross section of the pipe half portion 91 to the peripheral edge portion 92 and engaged with the inner protruding edge portion 70 of the diffusion / spreading half 60.

The sowing half portion 90 configured as described above has an inner protruding edge portion 100 at the end of the pipe base portion 20 and an inner concave edge portion 101 extending from the half portion 91 to a gradually enlarged peripheral portion 92, The corresponding inner concave edge 69 and inner protruding edge of the diffusion spray half 60
When 70 is engaged, the half 90 for sowing and the half 60 for spreading
The tips of the respective fastening projections 69, 69 are mated,
By screwing the screw 68 from the outside of the half 60 for dispersing and scattering, the head 10 for dispersing particulate matter of the present invention is assembled.

Now, at the lower end of the flexible pipe connected to the lower part of the storage bag of granular materials such as seeds, fertilizers, pesticides, etc. carried on the back of the person, with or without the extension auxiliary pipe, the above-mentioned spray head 10 Fits and attaches, diffusion spray half 60
When the head 10 is held in hand and turned obliquely forward, the granular material falls through the flexible pipe, and flows from the pipe base 20 along the bottom surface of the enlarged bottom part 62 of the diffusion spray half 60. The air is discharged to the outside from between the respective diffusion direction blades 65 provided on the tip peripheral edge 63 and the side peripheral edge 64.

At this time, the upper edge 98 of the guide wall 97 of the half 90
Keeps a sufficient distance from the bottom surface of the enlarged bottom part 62 of the diffusion / dispersion half 60, so that the flow of the particulate matter is not hindered and is not directed by the guide wall 97, By arranging from the lower surface side of the half portion 61 to the tip of the enlarged bottom portion 62 and the bottom surface which gradually becomes shallower toward the side, each granular material is changed in direction forward or diagonally forward, and each direction blade 65 is changed. Spilled out from between.

The direction wing 65 shown in FIG. 6 (a) is curved convexly toward the front, and in this case, the particulate matter discharged from each direction wing 65 is further left and right than the direction of the direction wing 65. Spread. Also, the one shown in FIG. 2B is curved concavely toward the front, and in this case, the diffusion to the left and right is scattered so as to converge forward. In addition to these, it is needless to say that the direction wing 65 may have no curvature.

In addition, since the radial directions of the respective direction blades 65-1 provided in the tip peripheral edge portion 63 of the direction blades 65 are different from each other, the diffusion of the granular material in the left-right direction is ensured. .

Furthermore, the amount of the granular material that is changed in direction by the enlarged bottom portion 62 and moves toward the peripheral portion 64 is smaller than that in the forward direction. Since the direction of all the direction wings 65-2 provided in the part is directed in the same direction, a large amount of granular material is scattered in the direction in total, and eventually the granular material is relatively uniform in the front and left and right. Is spread. It goes without saying that the direction wings of the side peripheral edge portion 64 may have radially different directions.

Furthermore, in the above embodiment, the tip peripheral edge 63 and the side peripheral edge 64 of the diffusion / dispersion half 60 are gradually made higher toward the tip than the split part of the pipe half 61. Is not necessarily high, and may be the same as the height of the halved part. However, the higher the height is, the less the fall energy of the granular material due to the direction change is reduced, and the direction can be changed. This is because, as viewed from the head 10, it can be scattered higher.

Further, in the above embodiment, the enlarged bottom portion of the diffusion
The slope that becomes shallower toward the periphery of 62 is made smaller at the front end periphery 63 and the side periphery 64, but it is not necessary to make the inclination smaller in this way. This is because it is possible to further increase the spread of the scattering of the particulate matter.

Further, in the above-described embodiment, a slightly erected rim 66 is formed on the edge of the distal end peripheral portion 63 and the side peripheral rim portion 64 of the diffusion / dispersion half 60, but this is not necessarily required. However, if this is formed, the spread of the granular material in the vertical direction can be further increased, and further, in conjunction with the above-described embodiment in which the inclination is made shallower at the peripheral edge, it is further expanded. Can be increased.

Also, here, with the side of the half 90 for sowing the streaking of the spray head 10 facing downward, holding the hand so that the tip of the head 10 is directed obliquely downward and downward, if the granular material is dropped through the flexible pipe However, since the granular material is gradually narrowed from the pipe base 20 to the tip of the half 90 from the pipe base 20 to the tip of the half 90, the granular material is formed as a straight bottom passage. The particles can be discharged in a streak shape without being disturbed, and therefore, almost not scattered right and left and up and down from the tip of the head 10.

In the embodiment of the streaking half 90 described above, the upper edge of the guide wall 97
98, near the pipe half 91, is formed higher than both edges of the half 91, so that even if the flow is disturbed when the granular material falls from the flexible pipe, the guide wall
It can be prevented from jumping over both sides over the upper edge of 97. Of course, the height of the upper edge 98 may be equal to or lower than both sides of the pipe half portion 91.

In the above-described embodiment of the half body 90 for sowing, the guide wall 97 is provided.
The upper edge 98 is formed lower than both sides of the half portion 90 near the front end, and further formed at the front end lower than the position of the edge of the front end peripheral portion 63 of the diffusion / dispersion half 60. Thus, in the case of the diffusion and dispersion of the particulate matter, even if the particulate matter flows out along the enlarged bottom portion 62 of the diffusion / dispersion half 60, it is completely prevented from flowing out in the desired direction. Again, if the granular material has sufficient space for the fall path between the upper edge 98 of the guide wall 97 and the inner surface of the enlarged bottom 62, the diffusion of the particulate Sufficient spacing can be maintained so as not to hinder spraying.

Further, in the above-described embodiment, since the periphery of the plate-like portion of the half for sowing is made smaller than the extension of the periphery of the enlarged bottom portion of the half for diffusion and spraying, the vertical direction of the periphery is reduced. Even if the interval is the same, the outlet of the granular material can be made wider than in the case of the peripheral portion of the same spread, and the granular material flows out in the direction along the slope of the enlarged bottom, so that the granular material just flows widely in that direction. You can make an exit.

[Effect of the Invention] According to the head for dispersing particulate matter of the present invention, it is constituted by combining the half for diffusion dispersion on one side and the half for streaking on the other side, so that it has one head. As a result, it is possible to provide two functions of diffusion spraying and streaking, so that the number of parts to be carried to the work site can be reduced by one compared with the related art, and the time and labor for replacement at the site can be omitted.

In addition, in the structure, not only the reduction of the natural fall energy of the granular material is reduced as much as possible so that it is spread widely, but also the diffusion to the side where the amount of scattering is small is evenly scattered in front. In this way, on the other hand, it is also possible to make the diffusion to confine the diffusion to the left and right to a certain limit, and further to increase the spread of the diffusion in the vertical direction.

On the other hand, in the case of streaking, the streaking of a desired width can be performed without disturbing the flow along the path of the granular material in the head.

[Brief description of the drawings]

1 to 5 show an embodiment of a head for dispersing particulate matter according to the present invention. FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a bottom view, and FIG. FIG. 6 is a rear view and FIG. 5 is a front view, and FIGS.
The figure shows an embodiment of a diffusion spraying half which is one of the assembled parts of the above-mentioned head for spraying particulate matter. FIG. 6 (a) is a plan view thereof, and FIG. 6 (b) is another embodiment. Partial plan view, seventh
The figure is a cross-sectional view taken along the line VII-VII of FIG. 6 (a), and FIG. 8 is a rear view of the same partial cross-section.
FIG. 12 shows an embodiment of a half for sowing, which is one of the assembled parts of the head for dispersing the granular material, FIG. 9 is a plan view thereof, FIG. 10 is a side view thereof, and FIG. The front view and FIG. 12 are also rear views. 10; head for spraying particulate matter, 20; pipe base, 60, 60-1; half for diffusion spraying, 61; half pipe, 62; enlarged bottom, 63; tip peripheral edge, 64; side peripheral edge, 65; diffusion direction wing, 65-1; tip direction diffusion direction wing, 65-2; side direction diffusion direction wing, 65-3; diffusion direction wing, 66; standing edge, 67 Clamping protrusion, 68; Screw, 69; Inner concave edge, 70; Inner ridge, 90; Streaked half, 91; Pipe half, 92; Expanded rim, 9
3; pipe half bottom, 94; rim, 95; plate, 96; peripheral, 97;
Guide wall, 98; upper edge, 99; fastening projection, 100; inner edge, 10
1; inner concave edge.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01C 7/08 A01C 15/00 A01C 9/00

Claims (11)

(57) [Claims] 1. A pipe base, and a diffusion spraying half and a streaking half connected to the pipe base. The diffusion spraying half includes a pipe half connected to the pipe base and a tip connected to the pipe half. An enlarged bottom portion extending toward the front end and extending to both sides and having a shallow bottom near the front end and the side periphery near the front end, and the front end periphery and the side periphery And a diffusion wing, which is radially oriented, spaced apart, and whose upper end is erected higher than the peripheral edge, comprising: a half for sowing, a half of a pipe connected to the base of the pipe; The body, and the two sides of the arc of the pipe half are gradually reduced toward the tip, and the center of the pipe half is left. Has a peripheral part that extends from the edge to both sides A guide wall having a sufficient space between the plate-like portion and an enlarged bottom portion of the half for diffusion and diffusion, the upper edge being erected on an edge where both sides are gradually reduced. A gap is made between the peripheral edge and the peripheral edge of the enlarged bottom of the half and the peripheral edge of the plate-shaped portion of the half for sowing, and the peripheral edge of the enlarged bottom of the diffusion and scattering half. Characterized in that two diffusion direction wings adjacent to the center of the head are located on both outer sides of the front end of the guide wall of the half body for crimping. 2. The peripheral edge portion and the peripheral edge portion of the diffusion / dispersion half are gradually made higher toward the front end than the split portion of the pipe half. The head for spraying the particulate matter according to the above. 3. The method according to claim 1, wherein the tendency of the diffusion spraying half to become shallower toward the periphery of the enlarged bottom is reduced at the periphery of the front end and the side periphery. The head for spraying the particulate matter according to the above. 4. A slightly erected upright edge is formed at an edge of a tip peripheral edge portion and a side peripheral edge portion of the diffusion / dispersion half body. 4. The head for dispersing particulate matter according to 2 or 3. 5. The granular material according to claim 1, wherein each of the diffusion wings at the peripheral edge of the tip of the diffusion / dispersion half is radially oriented in a different direction. Head for spraying. 6. The grain according to claim 1, wherein each of the diffusion wings on the side peripheral edge of the diffusion and spray half faces in the same direction. Head for scattering objects. 7. Each of the diffusion wings of the diffusion / dispersion half body includes:
7. The head for dispersing particulate matter according to claim 1, wherein the head is curved convexly toward the tip. 8. Each of the diffusion wings of the diffusion / dispersion half body,
The head for dispersing particulate matter according to claim 1, 2, 3, 4, 5, or 6, wherein the head is curved concavely toward the front end. 9. The upper edge of the guide wall erected on both sides of the bottom of the pipe half of the streaking half is formed near the pipe half and higher than both sides of the half. The head for dispersing particulate matter according to claim 1, 2, 3, 4, 5, 6, 7, or 8. 10. The upper edge of the guide wall erected on each side of the bottom of the pipe half of the half for sowing is gradually reduced toward the front end, and near the front end, from the both sides of the half body. The lower end is formed lower than the position of the edge of the peripheral edge of the front end portion of the diffusion / spreading half body. 6, 7,
10. The head for spraying a granular material according to 8 or 9. 11. A peripheral edge of a plate-like portion provided on an edge where both sides of a bottom portion of the pipe half of the streaking half is gradually reduced is wider than a peripheral edge of an enlarged bottom portion of the diffusion / spreading half. Claims 1, 2, 3, 4, 5, 6, 7,
11. The head for spraying a granular material according to 8, 9 or 10.