JPH0437638Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is equipped with a blower, and the inside of a drug tank and a discharge port that communicates with the blower can communicate through a communication port. This invention relates to a metering adjustment plate for a backpack-type or traveling-type power sprayer, which can be opened and closed freely and is provided with a butterfly-shaped shutter, and is capable of spraying a drug in a drug tank from a discharge port using the wind force of the blower. It is something.

[Prior Art] Conventional power spreaders are not equipped with this type of metering plate, so as shown in FIGS. 6 and 7, a chemical (not shown) is installed in the shutter case 1 of the power spreader. Oval communication port 2 that communicates with the tank
is formed in the shutter case 1, and a communication port 2 is formed in the shutter case 1.
A butterfly-shaped plate-shaped shutter 3 that can be opened and closed is supported by a support shaft 4.
is protruded from the side of the shutter case 1, and is attached to the support shaft 4.
The shutter arm 5 is attached to the nut 6 at the protruding end 4a.
The shutter arm 5 is swingable via the intermediate rod 7, and the shutter 3 is opened and closed by swinging the shutter arm 5.

[Problems to be solved by the invention] However, as mentioned above, and as shown in Fig. 7, conventional power sprayers do not require a shutter opening larger than the particle size when spraying chemicals with a large particle size. Width However, there is a problem in that the area of the opening of the shutter is large. In addition, in the case of conventional spraying using a power spreader, the spraying width was wide, so the amount of discharge was mainly large. In some cases, there are problems such as difficulty in use.

[Means for Solving the Problems] This invention was devised in view of the above-mentioned circumstances, and includes overlapping a shutter case and a chemical tank above a fan case in which a blower driven by a prime mover is installed. In a power spreader having a swingable shutter that can open and close an internal communication port, a pair of elastic plates are connected to the communication port so that the communication port formed in the shutter case is substantially closed when the shutter is opened. To propose a metering adjustment plate for a power spreader, which is attached to the shutter case on both sides of the mouth with their tip portions protruding into the range of the communication port, and in which notches are formed in the tip portions of these plates. It is something.

[Function] In the above configuration, a notch is formed at the tip of the plate disposed on both sides of the communication port of the shutter case so as to substantially close the communication port of the shutter case when the shutter is opened. This solves the problems of conventional power spreaders and ensures an appropriate amount of discharge.

[Example] An example of this invention will be described below based on the accompanying drawings.

Fig. 1 is a sectional view of a backpack-type power spreader equipped with the metering adjustment plate of this invention, and Figure 2 is an exploded perspective view showing a part of the shutter equipped with the metering adjustment plate of this invention. 3 is an enlarged perspective view of the main part of FIG. 2. Reference numeral 11 in FIG. 1 is a blower, and a case 12 of the blower 11 is formed with a discharge pipe 14 communicating with its outlet 13. be done. Also, the blower 11
A drug tank 15 is disposed above through a shutter case 18 in which a shutter 17 is installed, and below the drug tank 15 is communicated with the discharge pipe 14 through a communication port 19 formed in the shutter case 18. Ru. The aspect will be explained with reference to FIG.

That is, in FIG. 2, the shutter 17
is pivotally supported by a support shaft 20 to close an elongated communication port 19 formed in the front shutter case 18, and has a butterfly-shaped shape. Note that both sides of the communication port 19 of the shutter case 18 are funnel-shaped, and the support shaft 20 protrudes from the side of the shutter case 18, and the protruding end thereof is a male threaded portion 21 having a rectangular cross section. The shutter arm 22 is attached to the nut 2 on this male threaded portion 21.
3, this shutter arm 22
is swingable via an intermediate rod 24, and by swinging the shutter arm 22, the shutter 17
The opening and closing operations are performed.

In the shutter case 18, a pair of plates 26a made of an elastic material are bored in the plates 26a on both sides of the communication port 19 so that their tip portions protrude into the range of the communication port 19. The shutter case 18 is attached by a mounting button 26c serving as a locking tool that is inserted through a plurality of mounting holes 26b.
Notches 26d are formed in the edge portions of these plates 26a facing the communication port 19, forming the metering adjustment plate 26 of this invention.

Next, in FIG. 4, the button 26c in FIG.
As an alternative locking tool, the plate 26a of the metering adjustment plate 26 is attached to the shutter case 18 using a screw 27, and in FIG. 5, the locking tool is a notch provided in the plate 26a. 28 and a protrusion 30 having a bulging head 29 protruding from the shutter case 18, and the notch 28 is engaged with the protrusion 30 to be mounted. Note that the other parts are the same as those in the previous example, so the same or equivalent parts are given the same reference numerals, and detailed explanation will be omitted.

In the above-mentioned example, the metering adjustment plate of this invention is applied to a backpack-type power spreader, but it can also be applied to a traveling-type power spreader.

Since the metering adjustment plate of this invention is as described above, when the shutter 17 is rotated by swinging the shutter arm 22 via the intermediate rod 24, as shown in FIG. The shutter 17 is opened while the portion of the metering adjustment plate 26 facing the communication port 19 is bent by the side end portion against the elastic force. At this time, no matter how large the opening width X of the shutter 17 is, the opening part 25 of the shutter 17 is
Since the notch 26d is connected to the drug tank 15 only through the cutout 6d, a small amount of large-sized drug can be discharged by adjusting the width of the notch 26d appropriately.

[Effects of the invention] As described above, the metering adjustment plate of the power spreader according to this invention has the following effects.

(1) By installing the metering adjustment plate of this invention, it is possible to dispense a small amount of large particles.

(2) When used as a traveling power spreader, it is possible to set the power spreader on a tractor and spread a small amount of large-particle fertilizer, etc. while rotary tilling, saving labor in agricultural work. can be achieved.

(3) When a power spreader equipped with the adjustment plate of this invention is installed on a tractor and seeds are directly sown while rotary tilling and land leveling, small amounts can be spread using the rotary width, which saves labor in agricultural work. can be achieved.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a power spreader equipped with the metering adjustment plate of this invention, Figure 2 is an exploded perspective view showing a part of the shutter equipped with the metering adjustment plate of this invention, and Figure 3 The figure is an enlarged perspective view of the main part of Figure 2, Figures 4 and 5 are perspective views of other embodiments, and Figure 6 is an exploded perspective view showing the shutter of a conventional power spreader. , FIG. 7 is a partially enlarged perspective view of FIG. 6. In the figure, 11...Blower, 12...Fan case, 14...Discharge port, 15...Drug tank, 17...Shutter, 18...Shutter case, 19...Communication port, 20...Spin shaft, 22 ... Shutter arm, 24 ... Intermediate rod, 25 ... Opening portion, 26 ... Metering adjustment plate of this invention, 26a
...Plate body, 26b...Mounting hole, 26c...Button, 26d...Notch, 27...Screw tool, 28...
Notch portion 30 is a protruding piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A swingable shutter in which a shutter case and a chemical tank are superimposed above a fan case in which a blower driven by a prime mover is installed, and a communication port in the shutter case can be opened and closed. In the power spreader, a pair of elastic plates are placed on both sides of the communication port so that the communication port formed in the shutter case is substantially closed when the shutter is opened, and their tips are attached to the communication port. attached to the shutter case so as to protrude within the range;
and a metering adjustment plate for a power spreader, which has a notch formed at the tip of each of these plates. (2) The metering adjustment plate for a power spreader according to claim 1, wherein the locking device is a button inserted through the plate body. (3) The metering adjustment plate for a power spreader according to claim 1, wherein the locking device is a screw device that is inserted through and screwed into the plate body. (4) Adjustment of the power spreader according to claim 1, wherein the locking device is constituted by a notch formed in the plate and a protrusion provided at a corresponding portion. Volume adjustment plate.