JPH0433962Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is based on a backpack power spreader that is connected to the outlet of a blower when spraying granules, etc. using a backpack power spreader. It is related to the jet head.

[Conventional technology]

As shown in FIG. 5, a conventional spray head of this type is a backpack-powered sprayer 5, which includes a sprayer main body 1 that can be carried on a backpack, a chemical tank 2, an engine 3 as a driving source, a blower 4, etc. A jet base end member 7 made of plastic and having a cylindrical shape is connected to the discharge port 4a of No. 4 by a flexible cylinder 6;
A plurality of connecting members 8, 8 similarly made of plastic and having a cylindrical shape are connected continuously from the tip opening of the
. . . and a nozzle 9 connected to the tip opening of the most advanced connecting member 8, and small holes 8a are bored in the peripheral sides of the connecting members 8, 8, respectively. .

[The problem that the idea aims to solve]

However, since the conventional jet head is as described above, connecting a plurality of connecting members 8 and increasing their length during chemical dispersion work increases the weight, and also increases the weight due to the accumulation of tolerance errors of the mutual fitting parts. Complete integration is difficult, and even if multiple connecting members 8 are connected, the total length of the jet head is about 2 m, and even if the drug is blown from the tip of the jet head, the particles will be separated depending on the particle size of the drug. When the diameter is less than 1 mmφ, the reach distance decreases to about 11 m, and in fields with a width of 30 m, such as rice cultivation, it becomes impossible to spray along the ridge or by one person, and it is necessary to step into the rice field to do the work. First, there are problems in that the labor required by the worker increases and the work efficiency is extremely reduced.

[Means to solve the problem]

This idea was developed in view of the above-mentioned circumstances, and a chemical tank 1 is attached to the main body 11 of the sprayer, which can be carried on the back.
2. A backpack power spreader 10 comprising a drive source 13, a blower 14, etc., with a support 22 connected to the outlet 14a of the blower 14 via a flexible cylinder 15. In the jet head of the spreader, a mounting part 19 is formed protrudingly on the circumferential side of a cylindrical jet head base end member 16 connected to the flexible cylinder 15, and a through hole 18 is formed in the mounting part 19 in the longitudinal direction. The base of the rod-shaped support body 22 is inserted into the through hole 18, and the support body 22 is fixed to the attachment part 1 by the fixing means 20 formed in the attachment part 19.
9, and the distal end of the support body 22 is inserted through the through hole 24 of the jet head tip member 23, which has a mounting part 25 configured in the same manner as in the jet head proximal end member 16, to the mounting part 25. They are movably fixed by the constructed fixing means 26, and the jet head proximal end member 16 and the jet head tip end member 23 are connected by a lightweight and flexible film cylinder 28 made of a film material. A plurality of holes 29 with discharge plates 30 erected are formed on the inner edge of the front end of the film cylinder 28 on the circumferential side of the film cylinder 28, and a nozzle 32 is attached to the opening at the front end of the jet head tip member 23. This paper proposes a spray head for a backpack-powered spreader consisting of:

[Effect]

In the above configuration, the rod-shaped support unit allows the jet base end member, which has a cylindrical base end opening to be connected to the discharge port of the backpack power spreader, and the jet head base end member, which has a similar shape, to be connected to each other. The two members are connected and fixed so as to be movable back and forth, and the two members are connected by a lightweight and flexible film cylinder with a plurality of holes in the circumferential side, and a nozzle is connected to the tip opening of the jet tip member. By attaching it, the overall weight can be made lighter, so the overall length can be made longer, and granular chemicals can be spread over longer distances during spraying work, making it possible to spray 30m wide fields. This also allows workers to easily perform spraying work from the ridge.

〔Example〕

This invention will be explained in detail below based on the accompanying drawings.

FIG. 1 is a perspective view showing a chemical spraying operation using a backpack-powered sprayer equipped with a spray head according to this invention, and in the figure, numeral 10 indicates the backpack-powered sprayer.
The backpack power spreader 13 has a spreader main body 1 that can be carried on the back.
1, and a chemical tank 1 attached to the sprayer main body 11.
2 and an engine 13 and a blower 14 which are driving sources.
etc. are provided. As shown in FIGS. 1 and 2, the nozzle head according to this invention is a cylindrical nozzle base made of plastic or the like and connected to the outlet 14a of the blower 14 via a flexible cylinder 15. A cylindrical base end attachment in which an end member 16 is provided, and a base end through hole 18 that is integrally formed to protrude from the peripheral side of the jet head base member 16 by a connecting portion 17 and extends in the longitudinal direction is formed. A fixing means 20 is formed at the proximal end of the proximal end mounting part 19, and the fixing means 20 includes a threaded part 20a formed at the proximal end, as shown in FIG. A horizontal cap-shaped nut member 20c is screwed to the nut member 20c and has a through hole 20b, and a tapered ring 20e comes into contact with a tapered surface 20d formed on the inner wall of the nut member 20c.
and shall be provided with. Incidentally, reference numeral 21 shown in FIG. 2 is a wire-shaped hose band that connects and secures the jet head proximal end member 16 and the flexible cylinder 15.

As shown in FIGS. 3 and 4, the proximal end through hole 18 of the proximal end mounting portion 19 has a proximal end of a rod-shaped support 22 made of a lightweight material such as an aluminum pipe material and long in the longitudinal direction. The support body 22 can be fixed by tightening the nut member 20c of the fixing means 20. And the second
As shown in the figure, at the distal end of the support body 22, there is provided a jet head tip member 23 configured similarly to the jet head base end member 16, a base end attachment portion 19 having a base end through hole 18, and a fixing means 20, respectively. A distal end mounting portion 25 and a fixing means 26 having a distal end through hole 24 are provided by the distal end portion of the support body 22 being slidably passed through the distal end through hole 24 and fixed by the fixing means 26. be done. Note that 27 is a connecting portion that integrally connects the tip attachment portion 25 to the jet head tip member 23.

As shown in FIG. 2, the jet head proximal end member 16 and the jet head tip member 23 are communicated with each other by a lightweight and flexible film cylinder 28 made of a film material such as polyethylene. A plurality of small holes 29 are formed in one side wall of the film cylinder 2 in a substantially straight line, and as shown in FIG.
A discharge plate 30, which is a rising member having an L-shaped cross section, is located near the tip side of the small hole 29 on the inner wall of the hole 8, and is attached with a screw 31.
The protruding plates 30 make the protrusion of the drug from the small holes 29 more uniform.

In addition, as shown in FIG. 2, the jet head tip member 23
A fan-shaped narrow cylindrical nozzle 32 is attached to the opening at the tip.

[Effect of idea]

The jet head according to this invention is as described above, and by connecting the jet head base end member 16 and the jet head tip member 23 with the cylinder body 28 made of a lightweight film material, the entire weight can be reduced. Even if the overall length is longer than that of a conventional jet head, an operator can easily operate the jet head according to this invention, and when performing spraying work with the jet head, the granular drug can be spread through the small hole 29. and by discharging from the nozzle 32,
It is possible to spray over 15m from the ridge, and by spraying from the ridges on both sides, even in a 30m paddy field, workers can easily spray from the ridge without stepping into the rice field. The nozzle 32 can be detachably attached to the jet head tip member 23.
Since the nozzle is attached, the reach distance can be easily adjusted by replacing the nozzle.

Further, within the film cylinder body 28, there is a small hole 2 throughout the film cylinder body 28, in which a discharge plate 30 is erected near the tip side.
9 is formed, together with the nozzle 32, uniform distribution characteristics can be obtained especially in granule dispersion, and the dispersion effect is high.

Furthermore, by loosening the fixing means 20 and 26 and moving the jet head base and tip members 16 and 23 along the support 22, it is possible to fix them at any position.
The tensioning force acting on the film cylinder 28 can be adjusted and tightened so that it does not become unstable due to large bending due to the reaction force of the discharged air from the small hole 29.
In addition to being able to reliably direct the small holes 29 toward the spraying target, supporting bodies of different lengths can be used in correspondence with film cylinders 28 of different lengths, and assembly and folding are easy. It is effective.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the spraying operation when using the jet head of this invention, Figures 2, 3 and 4.
The figures are a side sectional view, a partially enlarged sectional view, and a sectional view taken along the - line showing the jet head according to this invention, and FIG. 5 is a perspective view showing the spraying operation using the conventional jet head. In addition, in the figure, 10... Backpack power spreader, 1
1... Spreader main body, 13... Drive source (engine),
14...Blower, 14a...Discharge port, 15...Flexible cylindrical body, 16...Full head proximal end member, 18...Proximal end through hole, 19...Proximal end mounting portion, 20, 26...Fixed Means, 22... support body, 23... head tip member, 24... tip through hole, 25... tip attachment part,
28...Film cylinder body, 29...Small hole, 30...
Standing member 32... is a nozzle.

Claims (1)

[Scope of utility model registration request] A chemical tank 12 is included in the sprayer main body 11 that can be carried on the back.
Discharge port 14 of the blower 14 of the backpack power spreader 10, which is equipped with a drive source 13, a blower 14, etc.
A support 2 connected to a via a flexible cylinder 15
At the head of the backpack-powered spreader where 2 is installed,
A mounting portion 19 is formed protrudingly on the peripheral side of the cylindrical jet head proximal end member 16 connected to the flexible cylinder 15, and a through hole 18 is formed in the longitudinal direction of the mounting portion 19.
The base of the rod-shaped support body 22 is inserted into the through hole 18, and the support body 22 is movably fixed to the attachment part 19 by the fixing means 20 formed in the attachment part 19. A through hole 24 of the jet head tip member 23 has a mounting portion 25 configured in the same manner as in the jet head proximal end member 16 at the tip end thereof.
A fixing means 26 configured to penetrate and insert into the mounting portion 25
The jet head proximal end member 16 and the jet head tip member 23 are fixed movably by a lightweight and flexible film cylinder 2 made of a film material.
8, a plurality of holes 29 are bored in the circumferential side of the film cylinder 28, and a plurality of holes 29 are formed on the inner edge of the front end side of the cylinder 28, and a discharge plate 30 is provided upright.
A jet head of a backpack power spreader, which has a nozzle 32 attached to the opening at the tip.