JPH0612840Y2 - Spray pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a spray pipe for spraying chemicals, fertilizers or seeds by a power sprayer.

(Prior Art) As a conventional spray pipe of this type, for example, the actual Kaisho 56
The one described in JP-A-64765 is known. This is provided with a spray hole on one side of the pipe, a cylindrical outer guide member protruding from the spray hole to the outside of the pipe, and a plate-shaped inner guide member having one end fixed to the outer guide member. It is made to project into the pipe. The inner guide member is inclined toward the upstream side toward the other end (tip). And the chemicals that pass through the pipe with the wind,
The inner guide member guides the particles to the spray holes, and the outer guide member sprays the particles.

And in the spray pipe described in the above publication, the inclination angle of the inner guide member with respect to the axial direction of the pipe is about 60 °, and the tip of the inner guide member is not fixed to the tubular body, and the free end Has become.

(Problems to be solved by the invention) However, in the above-mentioned conventional spray pipe, since the inclination angle of the inner guide member with respect to the axial direction of the pipe is as large as about 60 °, the chemicals sent with the wind collide with the inner guide member. There was a problem in that the impact was great when it was done, and the impact force crushed the chemicals and the like, making it difficult to obtain the spraying effect.

Therefore, an object of the present invention is to provide a spray pipe capable of preventing the crushing of chemicals and the like.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a pipe made of a synthetic resin with a plurality of spray holes arranged in the axial direction thereof, An inner guide member that is gently inclined toward the spray hole is provided, and an outer guide member that is continuous with the inner guide member is provided at a spray hole location outside the pipe, and the inner guide member has an upstream end distributed in the pipe. The pipe is fixed to the opposite side of the hole, the downstream end is fixed to the downstream side of the spray hole, and the inclination angle of the inner guide member with respect to the axial direction of the pipe is 10 to 20 °.

(Operation) With the above configuration, the medicine or the like sent with the wind pressure by the power sprayer is guided to the spray hole along the inner guide member, and is sprayed in the predetermined direction along the outer guide member through the spray hole. At that time, since the inner guide member is gently inclined from the upstream side to the downstream side at an angle of 10 to 20 ° with respect to the axial direction of the pipe, the medicine is not slid by the inner guide member and is not shocked. Guided to prevent crushing. Further, since both ends of the inner guide member are fixed to the pipe, it is possible to prevent the damage and the increase of the angle against the wind pressure. For smooth guidance, it is preferable that the angle of inclination of the inner guide member is small, but if it is too small, there is a manufacturing disadvantage, so it may be 10 ° or more.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG.
The pipe 2 made of hard synthetic resin of about 85 mmφ is connected,
The pipe 2 has a plurality of spray holes 3 arranged at equal intervals in the axial direction in the lower portion thereof, and also on the downstream side (air blowing side).
The end is closed. The spray hole 3 is formed as a rectangular hole by making an H-shaped cut in the lower portion of the pipe 2 and bending a pair of tongues 4 formed by the cut downward.

Further, inside the pipe 2, an inner guide member 5 is provided in a gently inclined state corresponding to each spray hole 3. The inner guide member 5 is formed of a synthetic resin having a smooth surface such as ultra-high molecular polyethylene so as to have a width of about 4 to 5 mm, and is preferably 10 to 20 degrees with respect to the axial direction of the pipe 2. The pipe 2 is provided in a gently inclined state with an angle of about 15 °, and the upper end, that is, the upstream end is connected to the pipe 2 via the bent piece 5A.
Is heat-welded to the upper part of the bottom of the spray hole 3
Is heat-welded in a state of being inserted in the downstream side edge portion of the. In this case, the inner guide member 5 has a wide portion of about 20 mm at the lower end.
B is formed.

Outside the pipe 2, an outer guide member 6 is provided corresponding to each spray hole 3. The outer guide member 6 is integrally formed with the inner guide member 5, has a width substantially the same as that of the spray hole 3, and is arranged so as to project outward from the spray hole 3. The outer guide member 6 is steeply inclined at a position near the power spreader 1, and is heat-welded in a gently inclined state as the distance increases.

Then, the medicine sent from the power sprayer 1 together with the wind pressure,
Fertilizers or seeds are guided to the spray holes 3 along the gently inclined smooth surface of the inner guide member 5 in the hose 2, and after passing through the spray holes 3 along the angle of the outer guide member 6 outside the hose 2. It is diffused and scattered. In this case, the power spreader 1 for the hose 2
Since the wind pressure on one side is strong and the other side is weak and moderate in the middle, the angle of the outer guide member 6 is set at an angle corresponding to this wind pressure, and is scattered over a wide range along this set angle.

According to the configuration of the above-described embodiment, the angle formed by the inner guide member 5 with respect to the axial direction of the pipe 2 is made as small as about 15 °, so that chemicals, fertilizers or seeds sent from the power spreader 1 together with wind pressure are not generated. It is smoothly guided along the inner guide member 5 into the spray hole 3. Therefore, the chemicals and the like are prevented from being broken as much as possible. Further, since both ends of the inner guide member 5 are fixed to the pipe 2, it is possible to prevent the inner guide member 5 from being damaged or having its inclination angle increased against the wind pressure. Therefore, gentle guide by the inner guide member 5 is also ensured. Further, as described above, by setting the angle of the outer guide member 6 according to the distance from the power spreader 1, it is possible to perform the diffuse spraying while guiding the spray holes 3 to the angle corresponding to the force of the wind pressure.

In order to guide the drug or the like without giving an impact, the inclination angle of the inner guide member 5 is preferably 20 ° or less. However, in order to avoid manufacturing disadvantages, the inclination angle of the inner guide member 5 is preferably 10 ° or more.

Further, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the present invention. The shape and size of the spray hole, the material and size of the inner guide member, or the outer guide member. The material, size, and inclination angle of the member may be selected appropriately. For example, as shown in FIG.
One outer guide member 6 is divided into two guide pieces 6A, 6B
By forming the guide pieces 6A and 6B at different angles, it is possible to further disperse the drug or the like sprayed from one spray hole 3 in a predetermined direction and in two directions. Alternatively, the inner guide member 5 and the outer guide member 6 may be separately formed, the inner guide member 5 may be heat-welded to the inside of the hose 2, and the outer guide member 6 may be heat-welded to the outside of the hose 2. You may fix 5 and 6 with a rivet or a screw. Further, the angle and the width dimension of the outer guide member 6 may be changed according to the wind pressure degree of each of the three spray holes, and the spray hole 3 may not be provided with the tongue piece 4.

[Advantages of the Invention] According to the present invention, the inner guide member that goes toward the spray hole in the pipe and the outer guide member that continues to the inner guide member at the spray hole location outside the pipe reliably guide the medicine and the like. Since it can be sprayed and the inclination angle of the inner guide member with respect to the axial direction of the pipe is made as gentle as 10 to 20 °, the medicine and the like are guided by the inner guide member without sliding impact, thus preventing the crushing of the medicine and the like. it can. Further, since both ends of the inner guide member are fixed to the pipe, it is possible to prevent the inner guide member from being damaged or having its inclination angle increased against the wind pressure. The inclination angle is 1
By setting the angle to 0 ° or more, disadvantages in manufacturing can be avoided.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is a schematic explanatory view, FIG. 2 is a partially cutaway perspective view of a main portion, and FIG. 3 is a line AA of FIG. A sectional view, FIG. 4 is a sectional view taken along line BB in FIG. 2, and FIG. 5 is a partially cutaway perspective view showing another embodiment. 1 ... Power spreader 2 ... Hose 3 ... Spraying hole 5 ... Inner guide member 6 ... Outer guide member

Claims (1)

[Scope of utility model registration request] 1. A pipe made of synthetic resin is provided with a plurality of spray holes arranged side by side in the axial direction, an inside guide member is provided in the pipe that is gently inclined toward the spray hole, and a spray hole portion outside the pipe is provided. An outer guide member that is continuous with the inner guide member, the inner guide member having an upstream end fixed to a side opposite to the spray hole in the pipe and a downstream end fixed to a downstream side in the spray hole. The spray pipe is characterized in that the inclination angle of the inner guide member with respect to the axial direction of the pipe is 10 to 20 °.