JP3123975U - Brush cutter herbicide spraying device - Google Patents

Abstract

The present invention provides a herbicide spraying device for a brush cutter that has a simple structure using a solid herbicide, improves handling and operability, and can be attached to an existing brush cutter.
A holder 2 having a space for holding a herbicide 6 having a desired composition solidified in a columnar shape and an opening 52 in a lower bottom portion while holding the brush cutter 7 near the cutting blade in an adjustable manner. The herbicide held in the holder is exposed from the opening and is configured to contact the cutting blade surface 74a. Further, the holder is provided with the clamp portion 3 that is fixed to the collar portion 72 of the brush cutter, and the case portion 5 that is disposed on the clamp portion, holds the herbicide so as to be movable up and down, and makes the lower portion abut against the cutting blade surface 74a. And consist of: Further, the case part is arranged on the clamp part with the adjusting mechanism 4 composed of the rotating part 42 and the linearly acting part 43, and a cutting blade cover body 55 is arranged on the case part if necessary.
[Selection] Figure 2

Description

  The present invention belongs to the field of an auxiliary device of a brush cutter operated by a driving source, and particularly relates to a herbicide spraying device of a brush cutter that sprays the herbicide in conjunction with the rotation of a cutting blade.

  In the field of agriculture and forestry, weeds, shrubs, etc. (hereinafter referred to as “weeds, etc.”) for the purpose of protecting the growth of crops, organizing farm work sites and improving aesthetics, etc. ”). Conventionally, various portable or portable brush cutters have been manufactured and used for the purpose of improving the efficiency of the mowing work and reducing the labor. This brush cutter mainly has a disc-shaped cutting blade disposed at the distal end of the collar extending from the base portion where the engine is disposed, and appropriately rotates the cutting blade with a driving source such as an engine. A configuration is adopted in which weeds and the like are trimmed by moving along the ground. The portable specification includes a shoulder type and a backpack type, and the portable specification includes a hand-push type.

  Among such various brush cutters, there are some which spray a liquid herbicide in conjunction with the progress of the cutting work such as weeds. For example, Patent Document 1 discloses that a chemical solution (herbicide, etc.) is supplied from an attached tank to a rotating surface of a rotary blade (mowing blade), and the chemical solution is sprayed from a brush cutter that splashes the solution by rotation or wind pressure. An apparatus is disclosed.

Further, Patent Document 2 discloses a pesticide combined use in which a chemical solution discharge port disposed in a rotary shaft of a brush cutter blade is arranged in a rotary fixing tool of the brush cutter blade and the chemical solution is sprayed by the rotational force and wind pressure of the brush cutter blade. A brush cutter is disclosed.
Jinsho 54-125339 (page 2-4, Fig. 1) JP 03-039005 (second page, FIG. 1)

  All of the herbicide spraying devices described in the above patent documents are premised on the use of a liquid herbicide, and a full tank is attached at the start of work, so the weight of the entire device increases. It was a thing. For example, a shoulder type or backpack type brush cutter has a weight increase of about 2 to 3 kg compared to a brush cutter without a spraying device (shoulder type: 3 to 5 kg, backpack type: 7 to 8 kg). For this reason, the labor burden on the worker is large in the mowing work over a long period of time.

  In addition, when the mowing work site is wide, it is necessary to prepare a large amount of liquid herbicide in advance. In this case, transportation to the site and replenishment of the herbicide tank to the tank are complicated, and it is necessary to secure a storage place.

  In addition, liquid herbicides are sprayed in the form of spray due to rebound from the rotating blade surface and wind pressure, so it is difficult to control the spread range depending on the planting situation of weeds and the surrounding wind speed. Large variations occurred. For this reason, in addition to the influence on the surrounding environment, there is a problem of the health hazard of the worker due to adhesion and suction to the human body.

  In view of this, the present invention has been made in order to solve the problem. In particular, the present invention improves handling and operability by adopting a simple configuration using a solidified herbicide. It is intended to provide a novel brush cutter herbicide spraying device having versatility that can be attached to other brush cutters.

In order to solve the above-mentioned problems, the herbicide spraying device 1 (hereinafter simply referred to as “the present device”) of a brush cutter according to the present invention is configured as follows.
In other words, the space near the cutting blade of the brush cutter (7) is held in an adjustable manner, the space for holding the herbicide (6) of the desired composition solidified in a columnar shape inside, and the opening (52) in the lower bottom The herbicide (6) held in the holder is exposed from the open port (52) and is in contact with the cutting blade surface (74a). With this configuration, the herbicide (6) is sequentially subdivided by cutting the cutting blade surface (74a) and sprayed around the cutting blade (74). The solidified herbicide (6) is small and light, for example, 150 g or less, is formed in a size that can be easily grasped with one hand, and an operator who operates the brush cutter (7) has a plurality of herbicides (6). It is desirable to be portable.

  The brush cutter (7) only needs to have a cutting blade surface (74a) capable of cutting the solidified herbicide (6) on the cutting blade (74). Accordingly, a brush cutter (7) having a disk-shaped (disk-shaped) cutting blade (74) is more preferable, but a so-called nylon cutter that rotates a string-like nylon cord is equivalent to the cutting blade surface (74a). Anything that forms a rotating surface is applicable. The form of the brush cutter (7) is not particularly limited to a shoulder type, a backpack type, or the like.

  The holder (2) is disposed on the clamp part (3) fixed to a predetermined part of the brush cutter (7) and the clamp part (3), and holds the herbicide (6) so as to be movable up and down. And a case portion (5) whose lower portion is brought into contact with the cutting blade surface (74a) of the cutting blade (74). As a part of the brush cutter (7) for fixing the clamp part (3), for example, a hook part (72) for holding a cutting blade (74) is most suitable. With this configuration, the device (1) can be easily attached to the existing brush cutter (7).

  The case portion (5) is preferably disposed on the clamp portion (3) with an adjusting mechanism (4) including a rotating portion (42) and a linear motion portion (43). With this configuration, the lower part of the herbicide (6) can be appropriately brought into contact with the desired position of the cutting blade surface (74a).

  Moreover, it is preferable to arrange | position the cover body (55) of a cutting blade (74) in a case part (5). Control of the spraying range or direction of the herbicide (6) subdivided by the cover body (55) is facilitated.

  In addition, the reference numerals in parentheses described in the documents of the claims of the utility model registration and the means for solving the above-mentioned problems are those added with reference numerals for reference to facilitate understanding of the configuration of the device, Of course, the present invention is not limited to the form on the drawing.

Since this apparatus has the above-described configuration, the following effects can be obtained.
First, since this device sprays the herbicide solidified into a small columnar shape around the cutting blade surface while sequentially subdividing it, the heavier liquid herbicide and its accessories such as its tank Need not be disposed on the brush cutter, and there is almost no increase in the weight of the brush cutter. For this reason, the increase in labor load of the mowing work is remarkably reduced.

  Further, the herbicide of the present apparatus is formed in a small and light columnar shape having a weight of about 150 g or less and a size that can be easily grasped with one hand. For this reason, compared with 2 to 3 kg of liquid herbicide stored in the tank, solidified herbicides are much easier to secure a plurality of spare forms and storage locations, and the replacement work is also easy. It is simple.

  Furthermore, since the solidified herbicide is subdivided by the cutting blade surface and sprayed, the rebound, wind pressure change, and wind speed change of the surrounding environment due to the rotation state of the cutting blade compared to the liquid herbicide in a spray form The spraying range is easy to control, and the operability is greatly improved.

Hereinafter, specific embodiments of the present apparatus will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an external appearance of a brush cutter in which the apparatus is arranged, FIG. 2 is a perspective view showing an enlarged arrangement state of the apparatus, and FIG. 3 is an assembled perspective view of the apparatus. 4 and 5 are explanatory views showing the operation of this apparatus.

  First, the brush cutter 7 in which the present apparatus 1 is disposed is a so-called shoulder type (type), and as shown in FIG. 1, a long tubular structure is provided on a base 71 where an engine and a fuel tank as a power source are arranged. The collar portion 72 is disposed, and a cutting blade 74 having a tip saw 74 b is disposed at the distal end portion of the collar portion 72. At a predetermined position of the collar portion 72, a handle 73 that is curved in a substantially U shape so that the operator holds the brush cutter 7 and can easily operate the cutting blade 74 on the distal end side is arranged in the axial direction of the collar portion 72. They are arranged so as to be orthogonal. In addition, a shoulder belt (not shown) of the brush cutter 7 is arranged by the operator on the collar portion 72, and a throttle (not shown) for controlling the rotational speed of the cutting blade 74 is arranged on the handle 73. Yes.

  In addition, since the structure of this brush cutter 7 is an existing technique, the detailed description beyond this is abbreviate | omitted. In the following description, the rotation direction of the cutting blade 74 is defined as the tip saw 74b placement side, that is, counterclockwise (arrow a) on the drawing when viewed from the upper side of the collar portion 72.

  The apparatus 1 is attached to the brush cutter 7 having the above-described configuration, and retains the herbicide 6 solidified in a columnar shape with a desired composition (hereinafter simply referred to as “herbicide”), while removing the herbicide. It is mainly comprised from the holder which makes the lower surface of the agent 6 contact the cutting blade surface 74a from upper direction.

  The herbicide 6 is obtained by solidifying an existing drug with a desired composition, and is a columnar body having a substantially fan-shaped (or substantially triangular) cross-sectional view. Moreover, the herbicide 6 is formed in the hardness which can be subdivided with the cutting blade surface 74a of the cutting blade 74, or the tip saw 74b.

  The holder 2 includes a clamp portion 3 that is connected to the collar portion 72 of the brush cutter 7 and holds the entire holder, and a case portion 5 that is disposed on the clamp portion 3 with the adjusting mechanism 4 and holds the herbicide 6. is doing.

  The clamp unit 3 is a so-called separation-type column clamp that is connected to the brush cutter 7 by holding a predetermined position of the collar portion 72 of the brush cutter 7 from the side, and both side pieces are fixed with bolts 33. . Further, a standing portion 31 extending in the holding direction side is formed from one end portion of the clamp portion 3, and an opening 32 into which a shaft of a rotating portion 42 of the adjusting mechanism 4 described later is fitted on this side surface. Is forming.

  The adjusting mechanism 4 disposed in the clamp portion 3 is configured by disposing a rotating portion 42 and a linearly moving portion 43 on both end sides of an arm portion 41 bent at a predetermined angle.

  The rotating part 42 is formed by inserting a shaft into the opening 32 of the clamp part 3 and holds the arm part 41 so as to be rotatable (arrow b) with respect to the clamp part 3. Further, the rotating part 42 can be fixed after the rotation adjustment by a bolt 44 penetrating from the side of the opening 32 of the clamp part 3. In addition, the fixing method of the rotation part 42 is not limited to a present Example, For example, you may comprise so that a shaft may be fixed to the standing part 31 via a washer and a thumbscrew.

  A linear motion portion 43 is disposed on the other end side of the arm portion 41 where the rotating portion 42 is disposed. The linear motion part 43 is a rectangular plate that is connected so that the end part of the arm part 41 abuts, and stands up and down from the arm part 41 in the vertical direction in the drawing. In addition, a long hole 43a is formed in the vertical direction above and below the connecting portion of the linear motion portion 43 with the arm portion 41, and the case portion 5 can be moved up and down by a bolt 44 disposed through the long hole 43a. It is fixed with the adjustment margin of (arrow c).

  The case portion 5 is held above the cutting blade by the adjusting mechanism 4 having the above configuration. This case part 5 is a cylindrical body formed from a transparent or translucent resin material (for example, an acrylic plate) to such an extent that the inside can be confirmed. The case part 5 has a substantially fan-shaped cross-sectional shape that is the same shape as the herbicide 6 and has a cross-sectional area and a length that allow two herbicides 6 stacked in series to pass through and be stored.

  Two ribs 53 having a ridge shape in the longitudinal direction are formed on the inner side surface of the case portion 5 on each side. The tips of the ribs 53 are in contact with the herbicide 6 housed in the case portion and suppress horizontal movement. In addition, a bottomed cylindrical lid 51 is disposed on the upper surface portion of the case portion 5 so that the upper surface can be closed, and the lower bottom portion is an open port 52. A stopper bolt 54 for temporarily fixing the height position of the herbicide 6 accommodated therein is disposed at the lower portion of the side surface of the case portion 5 and covers a part of the cutting blade 74 on the rotational direction side and the side surface thereof. The cover body 55 is fixedly arranged with bolts 56.

  The arrangement of the case portion 5 above the cutting blade is such that the open mouth side is located close to the cutting blade surface 74a in a side view, and the arc saw of the herbicide 6 and the tip saw 74b of the cutting blade 74 are arranged in a top view. It is set by the adjusting mechanism 4 so as to be positioned along the peripheral edge.

The apparatus 1 having the above-described configuration operates as follows and is attached to the brush cutter 7 and sprays the herbicide 6 while being subdivided sequentially.
First, the lid 51 of the case portion 5 of the holder 2 is removed, and two herbicides 6 are stored in the case while being stacked in series, and are temporarily fixed to the case portion 5 by the stopper bolts 54.

  Next, the entire holder is attached and fixed to the brush cutter 7 by separating the clamp portion 3 and holding the predetermined position of the collar portion 72 of the brush cutter 7. At the time of fixing, the position of the case portion 5 with respect to the cutting blade 74 is set by adjusting the rotating portion 42 and the linear motion portion 43 of the adjusting mechanism 4. As described above, the setting position of the case portion 5 is a position where the open mouth side of the case portion 5 is close to the cutting blade surface 74 a and the arc side of the case portion 5 is along the outer peripheral edge portion of the cutting blade 74.

  Due to the arrangement of the case portion 5, the herbicide 6 accommodated in the inside overlaps the cutting blade surface 74 a as a whole on the lower surface side, and the arc side comes into contact with the tip saw 74 b arranged almost on the outer edge of the cutting blade 74. Further, the cover body 55 disposed in the case portion 5 is disposed so as to cover the upper side and the side surface of the cutting blade 74 on the rotational direction side.

  When the fixing of the holder 2 and the position setting of the case part 5 are completed, the stopper bolt 54 of the case part 5 is loosened, and the herbicide 6 is dropped by its own weight. As a result, the lower surface side of the herbicide 6 is exposed from the opening 52 of the case portion 5 and comes into contact with the cutting blade surface 74a, so that preparation for spraying is completed. Note that the herbicide 6 may be stored in the case portion 5 when the attachment of the holder 2 to the brush cutter 7 is completed.

  Next, starting the engine of the brush cutter 7 and rotating the cutting blade 74, the cutting operation for weeds and the like is started. In conjunction with the progress of the mowing operation, the herbicide 6 is sequentially cut from the lower surface side by the tip saw 74b and the cutting blade surface 74a of the cutting blade 74 and subdivided, and in the rotational direction due to the rebound of the cutting blade surface 74a and the rotational wind pressure. Will be scattered along (arrow d). Further, the spraying direction or the spraying range is limited to some extent by the cover body 55 arranged in the case portion 5.

  Since the herbicide 6 at the time of spraying is in contact with the cutting blade surface 74a by its own weight, there is almost no risk of a high load with respect to the rotation of the cutting blade 74. Further, since the herbicide 6 is held in the horizontal direction by the tips of the plurality of ribs 53, 53,... Of the case part 5, the herbicide 6 is not adhered to the inner peripheral surface of the case part 5, According to the cutting on the lower surface side, it will fall by its own weight without any delay.

When the herbicide 6 runs out, the operator can take off the lid 51 of the case portion 5 and replenish another herbicide 6 carried and continue the operation.
[Possibility of other embodiments]

  The present apparatus 1 in the above embodiment uses the herbicide 6 as a columnar body having a substantially fan-shaped cross-section, but is not limited to this shape, and can be appropriately selected from a quadrangular column, a cylinder, and a triangular column. Is possible. In addition, when selecting the herbicide of another form, it is necessary to change the cross-sectional shape of the case part 5 according to this.

  Moreover, although this apparatus 1 in the said Example is a structure which superimposes and arranges one type of herbicide 6 in the case part 5 in series, the inside of a case part is divided | segmented into plurality and several types of herbicides are arrange | positioned. You may do it.

It is a perspective view which shows the external appearance of the brush cutter which has arrange | positioned this apparatus. It is a perspective view which expands and shows the arrangement state of this apparatus. It is an assembly perspective view of this apparatus. It is explanatory drawing which shows the effect | action of this apparatus. It is explanatory drawing which shows the effect | action of this apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 This apparatus 2 Holder 3 Clamp part 31 Standing part 32 Opening hole 33 Bolt 4 Adjustment mechanism 41 Arm part 42 Turning part 43 Direct acting part 43a Long hole 44 Bolt 5 Case part 51 Lid 52 Opening port 53 Rib 54 Stopper bolt 55 Cover body 56 Bolt 6 Herbicide 7 Brush cutter 71 Base 72 Hook 73 Handle 74 Cutting blade 74a Cutting blade surface 74b Tip saw

Claims (5)

A holder (2) having a space for holding the herbicide (6) solidified therein and an open mouth (52) in the lower bottom while holding it in the vicinity of the cutting blade of the brush cutter (7) in an adjustable manner,
A herbicide spraying device for a brush cutter, characterized in that the herbicide (6) held in the holder is exposed from the opening (52) and abuts against the cutting blade surface (74a). Holder (2)
A clamp (3) for fixing to a predetermined part of the brush cutter (7);
An opening (52) disposed on the clamp portion (3) for holding the herbicide (6) movably up and down and allowing the lower part of the herbicide (6) to contact the cutting blade surface (74a). The formed case part (5),
The herbicide spraying device for a brush cutter according to claim 1, wherein   The herbicide spraying device for a brush cutter according to claim 1 or 2, wherein the solidified herbicide (6) is formed in a columnar shape. Case part (5)
The herbicide spraying device for a brush cutter according to claim 2, characterized in that an adjusting mechanism (4) comprising a rotating part (42) and a linear motion part (43) is arranged on the clamp part (3). The herbicide spraying device for a brush cutter according to claim 2 or 4, wherein a cover body (55) of the cutting blade (74) is disposed on the case portion (5).

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