JP2008118975A - Weeder enabling weeding without damaging farm crop in weeding operation for farmland cultivation surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weeder damaging no farm crop on the farmland cultivation surface and enabling efficient weeding operation while mitigating weeding labor. <P>SOLUTION: The weeder is provided, being capable of conducting a weeding operation by rotating a rotor equipped with weeding blades, wherein the rotor, housed under a cover, has the function of damaging no farm crop through revolving a rotating shaft in an operative rod by the rotation of an engine as the power source. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a weeding machine for performing weeding without damaging the crops on the farmland cultivation surface, for the purpose of reducing the labor of the weeding work and improving the efficiency of the weeding work.

Traditionally, weeding work on farmland has been done manually using farm equipment such as mulberry, kama, etc., and farmland has been managed so that weeds do not inhabit by spraying herbicides such as chemicals. .
In addition, weeds after harvesting crops are embedded in the soil by stirring the farmland with a relatively large machine such as a trucker, or weeded with a mower with a small engine such as a 2-cycle engine. Cutting and weeding.

Weeding by farming tools such as mulberry and kama is performed efficiently on small-scale farmland, but weeding work on relatively large farmland requires a lot of human power and is efficient due to heavy labor. Absent.
Weeding with a relatively large machine such as a trucker can be done efficiently when the crop is not inhabited, but weeding with a trucker is not possible when the crop is inhabited. A mowing machine can cut weeds that live on the farmland, but it cannot be weeded from the roots and may damage crops.

In order to solve the above problems, the present invention performs weeding by rotating a rotor having a small weeding blade having a weeding blade using a small prime mover and covering the rotor with a box so as not to damage crops. Provide weeder.

This weeding machine has a box with a protective function so that the crops are not damaged by the rotation of the rotor having the weeding blade, and the operation rod connected to this box weeds according to the change in angle with the farmland cultivation surface. It has a mechanism to change the protection function of the box so that the blade does not damage the crop.

What is the function of protecting the box crops? A rotor having a weeding blade and a weeding machine having the ability to move up and down in a fan-like manner around a mounting portion of a support body provided at the front and rear portions with a rotor shaft mounted on a support body of a cover as a base point

This weeder is a weeder having a function of stopping the rotation of the rotor having the weeding blade even when the power source is activated so as not to damage the safety and crops during the weeding operation.

The function of stopping the rotation of the rotor having the weeding blade applies the lever principle to the bearing of the rotor having the weeding blade, and operates the L-shaped member to rotate the transmission shaft and the rotor having the weeding blade. Forcibly shutting off, or as another method, a mechanism that allows the rotor shaft to move up and down is provided on the bearing of the rotor having the weeding blade, and the rotation of the transmission shaft is cut off by dropping by the weight of the rotor having the weeding blade. Provide weeder.

According to the weeding machine according to the present invention, the rotation of a rotor with a weeding blade can efficiently weed a wide range of farmland without damaging crops, and can reduce the labor of workers.

The weeding machine according to the present invention performs weeding work by rotating a rotor having a weeding blade using a relatively small power source. Therefore, when the weeds are growing early or when the farmland is relatively soft after raining. If weeding is performed, weeding can be performed efficiently without consuming labor, and weeding can be performed according to the crop by changing the size of the box in which the weeding blade is installed.

The weeding machine according to the present invention performs a weeding operation by moving a box with a rotor having a weeding blade on the farmland cultivation surface in the front, rear, left, and right directions by handling the room with a household vacuum cleaner.

Overall view of the weeder according to the present invention A state in which a rotor with a weeding blade is installed, with the box with protective function removed Side view of the box in a state where the gear of the rotor having the weeding blade and the helical gear provided at the end of the transmission shaft mesh with each other Side view of the box in a state where the gear of the rotor having the weeding blade and the helical gear provided at the end of the transmission shaft are separated Side view of a state in which the rotor having the weeding blade is separated from the helical gear provided at the end of the transmission shaft by the weight of the rotor Oblique view of rotor with weeding blade in box

Explanation of symbols

1. 1. Weeder operation handle Engine
3. 3. Rotor with weeding blade Operation 桿 5. 5. Cover of rotor with weeding blade 6. Rotor and cover support with weeding blade Transmission shaft8. 8. Helical gear mounted on the transmission shaft 9. Gear mounted on rotor shaft with weeding blade 10. Bearing of rotor with weeding blade Rotor shaft with weeding blade 12. L-shaped part for moving the bearing up and down 13. Wire for operating L-shaped parts14. Lever connected to the wire to operate the L-shaped part

Claims (8)

A pipe-shaped operating rod with one end connected to a small power source and a transmission shaft that transmits rotation from the power source inserted in the inside, attached to the other end of this operating rod. A box that supports a drive shaft whose rotation is transmitted to a rotor having blades, and a cover that is attached so that the box does not damage crops according to the change in angle between the pipe-shaped operating rod and the farmland cultivation surface, Weeding machine with variable function The weeding machine according to claim 1, wherein the power source is a gasoline engine or an electric motor. The weeding machine according to claim 1 or 2, wherein a transmission mechanism that converts rotation of the transmission shaft into rotation of a driving shaft and rotates a rotor having a weeding blade is accommodated in the box. 4. The gear box is a gear transmission mechanism comprising a gear meshing at right angles with a gear provided in a rotor having a weeding blade by converting the rotation of the transmission shaft into the rotation of a drive shaft. Weeding machine as described in The weeding machine according to claim 4, wherein the transmission mechanism has a function of blocking a function of rotating a rotor having the weeding blade from rotation of the transmission shaft. The transmission mechanism has a function of forcibly releasing power transmission between a helical gear provided at an end of the transmission shaft and a gear provided in a rotor having the weeding blade, and can be automatically released. A weeder having the function of claim 4.5 The weeding machine according to claim 4.5.6, wherein the blade of the rotor having the weeding blade has two kinds of blades, a blade for stirring the farmland cultivation surface, a blade for weeding. The weeding machine according to claim 4.5.6.7, which has a function of exchanging a box in which the rotor having the weeding blade is installed in accordance with a type of a crop or a shape of a farmland cultivation surface.

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