JP3725396B2 - Attachment for the tube - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attachment for a jet tube, and more particularly, to a collision plate structure attached to an ejection hole portion of a jet tube of a spreader.
[0002]
[Prior art]
Conventionally, for example, in a power spreader 30 mounted on a riding agricultural management work vehicle 20, as shown in FIG. 4, as shown in FIG. 4, a synthetic resin molded tube provided with an appropriate number of ejection holes 10 at a predetermined interval on the lower side. A jet tube 11 made of the like is used. In addition, various types of jet tubes are also used in backpack type power spreaders.
[0003]
In spraying granular medicines, fertilizers, etc. using the jet tube 11, the medicines, fertilizers, etc. are evenly sprayed from the respective ejection holes 10 provided at a predetermined interval on the lower side. There is a need to. Therefore, a collision plate for adjusting the spraying amount is attached to each of the ejection holes 10.
[0004]
Conventionally, a method of fixing the collision plate to the 10 parts of the ejection holes by a self-tapping screw, a method of fixing by a bolt, a nut, or the like is employed. In addition, a simple sandwiching method has been proposed.
[0005]
The self-tapping screw is fixed by loosening the self-tapping screw for maintenance such as cleaning of the medicine, fertilizer, etc. deposited and deposited around the collision plate after a long period of use. When the collision plate is removed several times, the screw hole portion of the injection tube 10 is enlarged and damaged, and thus it is difficult to fix it again.
[0006]
In addition, the method of fixing with the bolts, nuts, etc. requires a lot of work for the attachment, for example, the nut needs to be positioned in a narrow space inside the jet tube and attached with the bolts. In addition, the simple sandwiching method lacks stability and may drop off due to vibration, impact, or the like.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and it is very easy to attach to the spray tube of the spreader and to remove it at the time of maintenance, etc. An object of the present invention is to provide a collision plate as an attachment for a tube that can always maintain a stable mounting state.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the attachment for a jet tube according to the first aspect of the present invention is bent into a hairpin shape in a side view, an impact plate is formed in front of the bent portion, and the inside is located inside the jet tube. A main body in which a screw hole is formed in one part and a through hole is formed at a position facing the screw hole in the outer piece located outside the jet tube, and an outer side of the jet pipe in the through hole of the main body And a mounting screw that is screwed into the screw hole of the inner piece.
[0009]
In the attachment for jet tube of the present invention, an attachment hole through which the attachment screw for attaching the attachment for jet tube passes is provided in advance at a predetermined position adjacent to the ejection hole of the injection tube.
[0010]
Next, an inner piece portion that is bent into a hairpin shape in the side view and has the screw hole of the main body located inside the jet tube is inserted into the inside of the jet tube from the jet hole, The screw hole formed in the inner piece is adapted to the mounting hole provided in advance at a predetermined position of the jet tube.
[0011]
At the same time, the outer piece in which the through hole is formed at a position facing the screw hole formed in the inner piece of the main body is positioned outside the jet tube and is formed in the outer piece. The through hole is matched with the mounting hole provided in the jet tube and the screw hole formed in the inner piece of the main body. As a result, the collision plate formed in front of the bent portion of the main body is erected vertically to the ejection hole portion of the ejection tube.
[0012]
Thereafter, the mounting screw is inserted into the mounting hole provided in the jet tube from the outside of the jet tube into the through hole formed in the outer piece located outside the jet tube, A mounting screw is screwed and fixed to the screw hole formed in the inner piece located in the inside of the jet tube.
[0013]
That is, according to the present invention, the screw hole into which the mounting screw is screwed is necessarily positioned at a fixed position inside the jet tube, and the mounting hole provided in advance in the jet tube Since it is adapted, it can be easily attached by means of the attachment screw, at the same time it is easy to remove, and furthermore, the jet tube is not damaged.
[0014]
According to an embodiment of the present invention, the main body is provided with appropriate elasticity. As a main body molding material having appropriate elasticity, a plastic molding material can be considered in addition to a stainless steel plate material. According to the second aspect, when the main body is mounted, the main body can sandwich the jet tube material, and can maintain a conformity state with a mounting hole provided in the jet tube in advance. Easy installation.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a partially sectional side view showing an embodiment of an attachment for a jet tube of the present invention, FIG. 2 is a partial sectional view showing a mounting state of the attachment for a jet tube of FIG. 1, and FIG. FIG. 4 is an explanatory view showing a state of spraying work by a power spreader equipped with a riding management work vehicle.
[0016]
The attachment for a spray tube of the power spreader of the present invention comprises a main body 1 and a mounting screw 2. The main body 1 is bent into a hairpin shape in a side view, and an impact plate 3 is formed in an arc shape on a bent portion front surface 9 that receives a conveying wind FW of the dispersed particles. A screw hole 5 is formed in the piece 4, and a through hole 7 is formed at a position facing the screw hole 5 of the outer piece 6 located outside the jet tube 11.
[0017]
When the main body 1 is made of a metal such as a stainless steel sheet having an appropriate elasticity, it is first punched into a shape in an unfolded state, and then the bent portion front surface 9, the collision plate 3 and the screw hole 5 portion. Can be easily manufactured by bending and screwing. In the figure, 8 is an attachment hole provided at a predetermined position on the leeward side adjacent to the ejection hole 10 of the ejection tube 11.
[0018]
Since the thickness of the jet tube 11 is not necessarily uniform in the longitudinal direction, the inner piece portion 4 having the screw hole 5 of the main body 1 and the outer piece portion 6 having the through hole 7 in advance. It is desirable that the interval S is formed to be slightly wider than the maximum thickness of the nozzle tube 11 from the viewpoint of easy insertion. By forming the main body 1 in this way, the main body 1 can be attached to the ejection holes 10 while maintaining a predetermined positional relationship even at different thicknesses.
[0019]
The jet tube attachment having the above-described configuration is attached by inserting the inner piece 4 of the main body 1 from the jet hole 10 of the jet tube 11, but the size of the jet hole 10 and the length of the main body 1 are further increased. Depending on the circumstances, it may be difficult to insert and mount directly from the ejection hole 10 in a predetermined mounting direction (longitudinal leeward direction of the jet tube).
[0020]
That is, when the inner piece 4 of the main body 1 is to be inserted in a predetermined mounting direction from the beginning, the rear end (windward side) of the main body 1 is locked to the jet hole 10 and the jet tube It may be difficult to insert inside. In such a case, the inner piece 4 of the main body 1 is inserted once in a direction perpendicular to the predetermined mounting direction, that is, along the curved surface (circumferential direction) of the jet tube 11, Thereafter, it can be easily attached by rotating at right angles to the attachment (leeward) direction.
[0021]
【The invention's effect】
According to the present invention, it is very easy to attach the sprayer to the jet tube and remove it during maintenance, etc., and even if the attachment and removal are repeated, the jet tube is not damaged and always maintains a stable mounting state. A collision plate as an attachment for a jet tube can be provided.
[Brief description of the drawings]
FIG. 1 is a partial sectional side view showing an embodiment of an attachment for a jet tube of the present invention.
FIG. 2 is a partial cross-sectional view showing an attachment state of the attachment for a jet tube of FIG. 1;
FIG. 3 is a plan view of FIG. 2;
FIG. 4 is an explanatory view showing a state of spraying work performed by a power spreader mounted on a riding management work vehicle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Mounting screw 3 Colliding plate 4 Inner piece 5 Screw hole 6 Outer piece 7 Through-hole 9 Bending-part front 10 Ejection hole 11 Injection tube 12 Power spreader

Claims (2)

It is bent into a hairpin shape in a side view, a collision plate (3) is formed on the front (9) of the bent portion, and a screw hole (5) is formed in the inner piece (4) located inside the injection tube (11). A main body (1) in which a through hole (7) is formed at a position facing the screw hole (5) of the outer piece (6) positioned outside the jet tube (11). A mounting screw (2) inserted into the through hole (7) of (1) from the outside of the nozzle tube (11) and screwed into the screw hole (5) of the inner piece (4); Attachment for jet tube characterized by consisting of. The attachment for a jet tube according to claim 1, wherein the main body (1) has appropriate elasticity.

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