JPS589639A - Apparatus for coating herbicide - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device that is mounted horizontally on the front end of a tractor or tiller and travels, touching weeds and other plants that need to be killed to apply herbicides.

There is a herbicide application device of the type shown in FIG. In this device, a number of nozzles B are installed in series on one side of a pipe A whose tip is closed, with internal communication.

The nozzle B consists of a base body 1 which is homogeneous to the pipe A through which the pipe A is passed in the transverse direction, and a key holder 2 which is provided with a rope passage hole in the top wall and is screwed onto the base body. In the illustrated nozzle, the nozzle part 3 of the base 1 has two bifurcated nozzles, but as shown in FIG.
On the other hand, there is also one having only one nozzle portion 3a.

Rope pieces C are connected and fixed to every two nozzles in a pasted manner, and when the herbicide is supplied to pipe A, this liquid permeates through the nozzles and into the rope pieces, and the rope pieces are attached to the plants. The herbicide adheres to the plant by touching it, and the applied herbicide is absorbed by the plant and reaches its roots, killing the entire plant.

By the way, in the conventional herbicide application device of this kind, when the tip of the rope piece is inserted into the nozzle B and tightened with the cap 2, an elastic ring (backing) having a triangular cross section is attached to the tip of the rope piece passed through the cap 2. The inner edge of the nozzle opening in the base of the nozzle is tapered, and when the cap is tightened, this ring is crushed and partially bites into the circumference of the rope to prevent the rope from coming out. However, with this structure, the rope does not come out at the nozzle. The disadvantage is that the liquid from the pipe does not permeate smoothly into the rope when the rope is tightened.

This invention solves the above-mentioned conventional drawbacks, and its purpose is to weed weeds so that the liquid permeates smoothly from the pipe even though the end of the rope is firmly fixed to the nozzle part in a manner that prevents it from coming off. The present invention provides a coating device.

That is, the present invention provides rope pieces C as shown in FIGS. 2 and 3.
A conical cylinder 5 is inserted into the shaft center while passing through the hole 4 of the cap 2, and the cylinder 5 is attached to the end of the rope on the outside.
A short tube 6 with a tapered surface a corresponding to the inner circumferential surface is attached, and this short tube is pushed into the nozzle base 1 (inside the nozzle part 3) by fastening the cap 2, and the opening end is shaped into a conical tube. The body 5 and the short tube 6 are inserted into each other (911 is inserted) to prevent it from coming out, and at the end of the rope, a conical tube is inserted to compress the fiber bundle 7 outwards, but the axis has a conical shape. A liquid outflow hole consisting of an axial hole 8 formed by a cylinder is formed. The short tube 6 is vertically divided into two pieces to facilitate attachment to the rope piece.

In the nozzle B-0 shown in FIG. 4, a conical cylinder 5a has an axial hole slightly smaller than the diameter of the rope C, and this cylinder is connected to the fiber bundle 7 of the rope C and a braided cord surrounding it. Outer cover 9
With this structure, only the jacket 9 of the rope is sandwiched between the tube body 5a and the short tube 6 to prevent it from coming out, and most of the fiber bundles 7 at the end of the rope are Not compressed.

In the figure, 10 is a horizontal through-hole formed in the base 1 of nozzle B, 11 is an O-link loaded into this through-hole, and 12 is a 0-ring that is fitted onto the pipe A, screwed into the through-hole, and presses the O-ring. 1 to pipe A is shown. Reference numerals 13 and 14 indicate the holes in the pipe and the -11 center hole of the nozzle that match when the nozzle B is fixed to the pipe A, and the reference numeral 15 indicates a net for trapping impurities in the liquid.

The present invention has the above-described structure, and this herbicide application device has a conical cylinder inserted into the tip of the rope piece while passing through the cap, as a means for connecting the rope end to the nozzle portion in a non-removable manner. A short tube whose inner peripheral surface has a tapered surface corresponding to the cylinder is attached to the end of the rope on the outside of the rope, and this short tube is pushed into the nozzle base (inside the nozzle part) by fastening the cap. Because of this, the conical cylinder and the short cylinder sandwich and bite the layer at the end of the rope, and the short cylinder comes into contact with the cap against the pull-out force of the cap, resulting in an extremely strong fixation. At the same time, even though the rope end is tightened, a hole is formed in the axis of the rope end that allows the chemical solution to flow out, or the fibers at the axis of the rope are not subjected to almost any compressive force. This has the effect of allowing the medicinal solution to seep out sufficiently.

[Brief explanation of drawings]

FIG. 1 is a plan view of a part of an example of the herbicide application device according to the present invention, FIG. 2 is an enlarged partially cutaway plan view of the main part of the same,
FIG. 3 is a partially exploded perspective view of the same as the above, and FIG. 4 is a partially cutaway plan view of the main parts on the other side, 3a... nozzle part, 2...
...Cap, 4...Rope through hole, 5, 5a...
Conical cylinder, 8...Short tube, a...Tapered surface, C...
- Rope, 7... Core fiber bundle, 9... Braided outer sheath. Patent applicant Kenji Yamamoto
−”Same Agent Kama 1) Sentence 2nd 1st
Figure 3Figure 2

Claims (1)

[Claims] A large number of nozzles are arranged in series on one surface of a pipe with a closed tip, and each nozzle is composed of a base body to be connected to the pipe, and a cap having a rope passage hole in the top wall and screwed to the base body, and every second nozzle is In a herbicide applicator in which a rope piece is connected and fixed to both nozzles in a pasted manner and herbicide permeates into the rope, a conical cylinder is inserted into the tip of the rope piece while passing through a cap, and the rope is dried. A short tube having an inner peripheral surface with a tapered surface corresponding to the tube is attached to the rope end on the outside, and the short tube is pushed into the nozzle base by fastening the cap, and the rope end is prevented from coming out. herbicide application equipment.