JP2007117010A - Herbicide applicator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a herbicide applicator capable of safely and readily applying a herbicide to only weeds of rhizocarp or the like such as Miscanthus sinensis, Imperata cylindrica and Pseudosasa purpurascens grown in hedge, etc. <P>SOLUTION: In the herbicide-coating device, a first supporting lever 11 and a second supporting lever 12 are supported by a shaft 13 and the first supporting lever 11 and the second supporting lever 12 are swingably constituted in prescribed ranges and coating rollers 21 and 22 are rotatably supported on each top of the first supporting lever 11 and the second supporting lever 12 and a herbicide is fed from a chemical liquid tank 7 onto the coating rollers 21 and 22 by a reciprocating pump 5 which is a chemical liquid-feeding means and the weeds are pinched by the coating rollers 21 and 22 and these coating rollers 21 and 22 are pulled up. Thereby, the herbicide is applied to the weeds to wither weeds. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a herbicide applicator for applying a herbicide to weeds to remove weeds.

  Conventionally, weeds have been removed by spraying herbicides with a sprayer, or with a sickle or a mower.

  However, weeds will grow soon after weeding the weeds, and when weeds are sprayed on the weeds with a sprayer, if the crops are cultivated nearby, the crops where the herbicides are cultivated There were drawbacks such as cropping and cropping.

  Therefore, there is a herbicidal roller device in which a coating layer is deposited on the outer peripheral surface of the roller, the herbicide is included in the coating layer, and the weed agent is applied to the weeds by the roller (Patent Document 1). Herbicides can be applied to weeds that grow on the roads and gardens, but cannot be applied to weeds such as Japanese pampas grass, bushes, and shinotake that grow in hedges.

  Therefore, when perennial plants such as Japanese pampas grass, straw, and shinotake are mixed as weeds in the hedge, the pruning effect continues even after pruning, because the regrowth after pruning is faster than that of the hedge plant. do not do. In addition, it is difficult to kill only perennial plants in a hedge by a normal herbicide spraying method, and it is difficult and difficult to dig up and remove roots of perennial plants.

  Therefore, when removing perennial plants, we put vinyl gloves on the hand, put a work gloves on it, and applied to the leaves with a herbicide that was thicker than that sprayed with a sprayer. However, it was necessary to apply the herbicide sufficiently to kill the bamboo and shinotake, etc., and it took time and effort, and there was a risk that the herbicide was attached to the hands and body. Therefore, development of a machine / apparatus that can remove a safe and labor-saving perennial plant has been desired.

JP-A-11-220994

  The present invention has been made in view of the above circumstances, and can safely and easily apply herbicides only to weeds, and grows in hedges, lawns, green belts, and the like. It is an object of the present invention to provide a herbicide applicator capable of applying a herbicide only to weeds such as perennial plants such as Japanese pampas grass, persimmon and shinotake.

  The herbicide applicator according to the present invention pivotally supports a pair of support rods so as to swing within a predetermined range, supports an application member at each tip of the support rod, and applies the application member from the chemical tank to the chemical solution supply means. Is a herbicide applicator that feeds herbicides onto the weeds by sandwiching the weeds with an application member, and the pair of support rods can swing within a predetermined range even if the pivot point is at the rear end. You may be located in the intermediate part.

Further, when the application member is a rotating application roller, the herbicide can be applied to the weeds with a small force.
And if a chemical solution supply means can send out a herbicide from a chemical solution tank to an application member, even if it is a reciprocating pump operated when a worker holds a holding part and rocks a support rod, it will be driven by an electric motor. A pump may be used.

  The herbicide applicator according to the present invention is used to weed only on weeds by sandwiching weeds such as Japanese pampas grass, firewood, shinotake, etc. extending from a hedge, etc., with the application member lifted up with the weed sandwiched The agent can be easily and safely applied.

  According to the present invention, a herbicide can be reliably and easily applied to perennial plants such as Japanese pampas grass, cocoons, and shinotake that grow in hedges and the like. The perennial plants such as Shinotake can wither and be easily removed. In addition, the operator can safely apply the herbicide only to the weeds without the herbicide sticking to the hand during the application work and without sucking the sprayed herbicide as in the conventional spraying work. can do.

  FIG. 1 is a schematic view showing the overall configuration of a herbicide applicator according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of an application roller as an application member, and FIG. It is a schematic diagram which shows an example. The present invention will be described below with reference to the drawings.

  The herbicide applicator is pivotally supported at the rear end and pivotally supported with respect to each other. The first and second support rods 11 and 12 and the front ends of the first and second support rods 11 and 12, respectively. Application rollers 21 and 22 constituting application members that are rotatably supported, a reciprocating pump 5 that is a chemical solution supply means for supplying a herbicide to the application rollers 21 and 22, and a chemical solution tank 7 for storing the herbicide It consists of and.

  The base portions of the first and second support rods 11 and 12 are bent inwardly from each other, and the base end portion of the first support rod 11 and the base end portion of the second support rod 12 are from the shaft 13. The first support rod 11 and the second support rod 12 are pivotally supported and configured to swing with each other, so that an operator can carry the work of applying the herbicide to the weeds. Gripping portions 14 and 15 are provided.

  A pair of upper and lower support arms 31 and 32 are fixed to the front end portion of the first support rod 11, and a support shaft 33 that rotatably supports the application roller 21 is fixed by a nut 35. A pair of holes 18, 19 are formed in the top and bottom of the second support rod 12, and movable arms 41, 42 are slidably inserted into the holes 18, 19. The part is provided with retaining means 45 and 46 such as a retaining ring, and a support shaft 33 for rotatably supporting the application roller 22 is fixed to the movable arms 41 and 42 by a nut 35. In addition, the movable arms 41 and 42 are provided with springs 43 and 44 on the outer periphery, and urge the application roller 22 toward the application roller 21.

  An arcuate guide mechanism centered on the shaft 13 is provided between the gripping portions 14 and 15 and the application rollers 21 and 22. The guide mechanism is a guide rod attached to the first support rod 11. 16 and a cylindrical guide tube 17 attached to the second support rod 12. A long groove 48 is formed in the guide tube 17 in the longitudinal direction, and the distal end of the guide rod 16 is orthogonal to the longitudinal direction. A pin 49 is provided in the direction in which the guide rod 16 is inserted into the guide tube 17 and the pin 49 is fitted in the long groove 48 so that the first support rod 11 and the second support rod 12 are within a predetermined range. The application rollers 21 and 22 that are opposed to each other are not displaced.

  Referring to the application roller shown in FIG. 2, the application rollers 21 and 22 include a roller main body 23 formed in a cylindrical shape with a metal such as aluminum or a synthetic resin, and an application portion 26 attached to the outer periphery of the roller main body 23. And the bearing shaft 33. The roller body 23 is formed of a cylindrical portion 24 and side walls 25 at both ends of the cylindrical portion. The cylindrical portion 24 is provided with a large number of small holes 27, and bearings are formed on the side walls 25. It is rotatably supported on the support shaft 33 via 28.

  The application part 26 is comprised with the nonwoven fabric etc., is sent to the inside of the roller main body 23, and the herbicide which passed the small hole 27 is immersed, and is supported. The application section is configured to be replaced when it becomes old.

  One end of the support shaft 33 is supported by being inserted into a hole of the support arm 32 (movable arm 42), and the other end is formed in a slightly small diameter portion, and a screw is formed on the small diameter portion. The small-diameter portion is fitted into the hole of the support arm 31 (movable arm 41) and is fixed by the nut 35. Further, the bearing shaft 33 has a hole 36 extending from one end thereof to the outer periphery. A pipe 37 having a closed end and a large number of small holes 38 formed on the outer periphery is wound around the outer periphery of the support shaft 33, and the end of the pipe 37 is supported from the hole 36 provided in the support shaft 33. It is led out of the shaft 33 and connected to branch pipes 75 and 76 described later.

  The support shaft 33 is not limited to the above-described configuration, and may be any configuration as long as the herbicide can be supplied to the nonwoven fabric. For example, the support shaft may be a hollow with one end closed. It may be formed of a cylindrical body, and a large number of small holes may be formed on the outer periphery thereof, and a connection portion for connecting the branch pipes 75 and 76 may be formed at the other end.

  The chemical solution supply means includes a reciprocating pump 5 that sends out the herbicide by reciprocating the piston in the cylinder 52 and an operating body 6 that presses the piston rod 53 of the reciprocating pump 5. The reciprocating pump 5 is attached to a U-shaped machine frame 51 fixed to the first support rod 11 with bolts, and a spring 57 is provided between the piston rod 53 and the cylinder 52. Is biased so as to extend by a spring 57.

  The actuating body 6 is fixed to the second support rod 12 and has a base cylindrical body 61 with an internal thread formed therein, an actuating section that contacts the piston rod 53 formed at the tip, and an external thread formed at the base. It is comprised with the press body 62. FIG. The pressing body 62 has its male screw threadedly engaged with the female thread of the base cylindrical body 61, and rotates to adjust the protruding length of the pressing body 62 by changing the screwing position with the base cylindrical body 61. The reciprocating distance of the piston rod 53 when the first support rod 11 and the first support rod 12 are swung can be adjusted to change the discharge amount of the reciprocating pump 5. The machine casing 51 is provided with an operation panel 54 incorporating a valve mechanism and the like, and the operation panel 54 is provided with operation handles (not shown) for operating the flow rate adjusting valves 77 and 78. ing.

  Based on FIG. 3, the supply of the herbicide by the chemical solution supply means will be described. A suction pipe 71 connected to the chemical tank 7 is connected to the suction port 55 of the reciprocating pump 5, and a supply pipe 72 is connected to the discharge port 56 of the reciprocating pump 5. The supply pipe 72 is branched into a branch pipe 75 and a branch pipe 76, and each of the branch pipes 75 and 76 is connected to the end of the pipe 37 led out from the support shaft 33. 22 is configured to be supplied with herbicide. In addition, a return pipe 73 is connected to the chemical liquid tank 7 via a relief valve 74 in the supply pipe 72. Reference numerals 77 and 78 denote flow rate control valves for adjusting the flow rate of the herbicide supplied to the application rollers 21 and 22, by operating an operation handle provided on the operation panel 54 fixed to the machine frame 51. The amount of the herbicide supplied to the application rollers 21 and 22 can be adjusted.

  The chemical liquid tank 7 is made of synthetic resin, and can store a predetermined amount (for example, 5 liters) of herbicide, and the chemical liquid tank 7 is connected to a suction pipe 71 connected to the reciprocating pump 5 and a return pipe 71. A pipe 73 is connected. A band 79 is attached to the chemical liquid tank 7, and the chemical liquid tank 7 can be held on the operator's waist by the band 79. The liquid chemical tank 7 is not limited to the one held on the operator's waist, and in the case of a small liquid chemical tank that can accommodate a small amount of herbicide, for example, in a support rod that is a frame of the herbicide applicator. In addition, in the case of a large chemical solution tank that can accommodate a large amount of herbicide so that the herbicide can be applied over a wide range, it can be a backpack-type tank.

The weeding work performed using the herbicide applicator in the above embodiment will be described.
The operator attaches the chemical tank 7 to the waist with the band 79, and places the weeds such as Susuki, Hagi, Shinotake, etc., extending from the hedge with the gripping portions 14, 15, after being positioned between the application rollers 21, 22. The first support rod 11 and the second support rod 12 are brought close to each other, and the weeds are sandwiched between the application rollers 21 and 22. At this time, the piston rod 53 is pressed by the pressing body 62 of the operating body 6, the herbicide is discharged from the discharge port 56 of the reciprocating pump 5, and the herbicide is supplied to the pipe 37 through the supply pipe 72 and the branch pipes 75 and 76. The sent herbicide is blown out in a mist form from the small hole 38 of the pipe 37, and is supplied to the application unit 26 from the small hole 27 of the roller body 23. Then, with the weeds sandwiched between the applicator rollers 21 and 22, the applicator rollers 21 and 22 are lifted up to apply the herbicide to the weeds. At this time, since the application roller 22 is supported by the movable arms 41 and 42 and is urged toward the application roller 21 by the springs 43 and 44, the amount of weed sandwiched between the application rollers 21 and 22 is somewhat affected. Therefore, weeds can be sufficiently sandwiched, and a herbicide can be reliably applied to the weeds. Further, when weeds are sparsely grown, the pressing body 62 of the operating body 6 is rotated to shorten the protruding length from the base cylindrical body 61 to reduce the discharge amount of the reciprocating pump 5. When a large amount of herbicide is supplied, the amount of the herbicide supplied to the application rollers 21 and 22 can be further reduced by restricting the flow rate adjusting valves 77 and 78 with the operation handle on the operation panel 54.

  When a herbicide (3 times round-up diluted solution) is sufficiently applied from lower leaves to upper leaves on trees such as perennial plants such as Sasa, Shinotake, Susuki, and zelkova, the seeds do not germinate and die completely after one year. I was able to.

  The herbicide applicator described above is a preferred embodiment, and there are many other variations. For example, what is shown in FIG. 4 is configured such that the first support rod 11 and the second support rod 12 are pivotally supported in the middle, and an operation panel 54 is provided at the pivot portion. .

  A non-rotating fixed application member will be described with reference to FIG. The fixed application member 8 is a support member whose both ends are supported by a support arm 31 (movable arm 41) and a support arm 32 (movable arm 42) provided at the tips of the first and second support rods 11 and 12. 81, a hollow holding body 83 fixed to the support member 81, and an application portion 85. The support member 81 has one end closed and the other end formed with a connecting portion for connecting the branch pipes 75 and 76. A plurality of small holes 82 are formed on one surface of the support member 81. The herbicide sent from 75 and 76 is configured to be ejected into the holding body 83. The holding member 83 has a substantially rectangular parallelepiped shape, is fixed to the support member 81, and a large number of small holes 84 are formed on the surface to which the application unit 85 is attached.

  Furthermore, in the above-described embodiment, the application roller is rotatably supported. However, the application roller may be configured to be driven to rotate. In that case, the application roller that rotates when the weed is sandwiched between the application rollers. As a result, the weed is fed between the application rollers from the sandwiched portion to the tip to apply the herbicide, so that the operator does not need to lift the herbicide applicator upward. Furthermore, although the chemical solution supply means is constituted by a reciprocating pump, it may be a pump driven by an electric motor, in which case the electric motor is operated by a proximity switch when the application rollers 21 and 22 are brought close to each other to sandwich weeds. In addition, in the case where the chemical tank is carried on the back, the electric motor can also be disposed on the back.

Schematic which shows the one aspect | mode of the herbicide applicator by this invention. Sectional drawing of an application | coating roller. The schematic diagram which shows an example of a chemical | medical solution supply means. Schematic which shows the other aspect of a herbicide applicator. Sectional drawing of a fixed type application | coating member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... 1st support rod, 12 ... 2nd support rod, 13 ... Shaft, 21,22 ... Application roller, 5 ... Reciprocating pump, 7 ... Chemical solution tank

Claims (6)

  A pair of support rods are pivotally supported within a predetermined range, an application member is supported at each tip of the support rod, and a herbicide is supplied from the chemical solution tank to the application member by the chemical solution supply means. A herbicide applicator characterized by applying a herbicide to the weeds with a weed interposed therebetween.   The herbicide applicator according to claim 1, wherein the support rod is pivotally supported at a rear end portion thereof, and a grip portion is provided at an intermediate portion of the support rod.   The herbicide applicator according to claim 1, wherein the support rod is pivotally supported at an intermediate portion, and a grip portion is provided at a rear end portion of the support rod.   The herbicide applicator according to any one of claims 1 to 3, wherein the applicator member is a rotating applicator roller.   The herbicide applicator according to any one of claims 1 to 4, wherein the chemical solution supply means is a reciprocating pump.   The herbicide applicator according to any one of claims 1 to 4, wherein the chemical solution supply means is an electric pump.

Images