weeder

Abstract

To provide a weeder in which a rechargeable battery is inexpensive and easy to use, even an old weeder can be recycled, it can be used whenever necessary, and the capacity of the rechargeable battery can be maximized. [Solution] In order to strengthen the electromotive force of the weed killer, the number of batteries has been increased from the original 4 to 6 to 6 to 8 AA rechargeable batteries 3, and the weight of the batteries has also been reduced. Two charging electrodes 4 are provided at the inlet of the rechargeable batteries of the weed killer, so that the batteries can be charged at any time from an adapter after discharge. Even an old weed killer can be restored to a new weed killer that generates electromotive force equal to or greater than that of a new one by updating the battery section.

Description

[Technical Field]

[0001] The present invention relates to a weeder. [Background technology]

[0002] The weed killer uses a built-in general-purpose single battery to spray the weed killing solution under pressure. The adapter, which is an external power source, converts 100 volts to the required 9 to 12 volts and supplies power to the rechargeable battery. The motor is not in the range where it would burn out even if the voltage rose by about 3 volts, and it has been proven that it has sufficient ability to continue working. Prior patent documentsPatent documents

[0003] [Patent Document 1] Japanese Patent Publication No. 2005-094853. Summary of the Invention [Problem to be solved by the invention]

[0004] The weed killer was large and heavy because it contained herbicidal liquid, making it difficult to carry around. Furthermore, the electromotive force decreased over time, which meant that the spraying power decreased and the spray spread became weaker.

[0005] To solve the above problem, the battery has been changed from heavy D batteries to light AA rechargeable batteries. Furthermore, to strengthen the electromotive force, it is desirable to increase the number of rechargeable batteries by two, from the original 4 to 6 D batteries to 6 to 8. It is desirable to provide two electrodes at the inlet of the rechargeable battery so that it can be charged at any time from the adapter after discharging. In terms of battery capacity, D batteries still do not achieve sufficient weight reduction, and AAA batteries do not have sufficient relay capacity. AA batteries provide sufficient reduction effect and relay capacity, and are appropriate in both mass and weight. Effects of the invention

[0006] According to claim 1, the electromotive force is restored and the overall weight is reduced. Lighter weight reduces fatigue during work and helps improve work efficiency. According to claim 2, if power is supplied from the adapter when the electromotive force becomes weak, the electromotive force will be restored to its initial value, the spraying power will be strengthened, work efficiency will improve, and weeding ability will also improve. According to claim 3, even an old weeder can be replaced with a new or better weeder by replacing the rechargeable battery. [Brief explanation of the drawings]

[0007] [Figure 1] Conceptual diagram of a weeder. [Figure 2] Top view of the weeder. [Figure 3] Front view of the same. [Figure 4] FIG. [Figure 5] Changes in electromotive force of six D batteries and eight AA rechargeable batteries. [Figure 6] Changes in electromotive force of four D batteries and six AA rechargeable batteries. [Figure 7] Wiring diagram for motor, battery and switch. [Figure 8] adapter-

[0008] The following describes the embodiments of the present invention with reference to Figures 1 to 8. [Figure 1] A conceptual diagram of a weeder. [Figure 2] A plan view of the weeder showing the arrangement of the rechargeable battery, motor, and adapter. [Fig. 3] Front view of the same. [Fig. 4] Side view of the same, similar to Figs. 2 and 3 above. [Fig. 5] The electromotive force trends for six D batteries and eight AA rechargeable batteries show that the electromotive force at the heart of this device is restored and strengthened by the rechargeable batteries. [Fig. 6] The electromotive force trends for four D batteries and six AA rechargeable batteries are similar to Fig. 5 above. [Fig. 7] Wiring diagram of the motor, rechargeable batteries, and switch, showing the wiring pattern when charging. [Fig. 8] The adapter is shown.

[0009] The weeder has the functions shown in Figures 1 to 8, which reduces the burden of actual work and contributes to improving efficiency. Incidentally, the weights of the D battery and AA rechargeable battery are listed below. TIFF0003252884000002.tif50152This shows that changing a single battery to a rechargeable battery reduces the weight of the battery section to just one-quarter.

[0010] The weeder receives power from the adapter to the external electrode, allowing it to perform repeated operations.

[0011] In the weed killer 1, current from the rechargeable battery 3 drives the motor 2, pressurizes the weed killing solution 9, and sprays the weed killing solution 9 from the nozzle 7. When the rechargeable battery 3 is being charged, the weed killer 1 can receive power from the adapter 5 to the external electrode 4.

[0012] The application areas are mainly rice paddies and fields where weeds grow. [Explanation of symbols]

[0013] 1 Weeding machine. 2 motors. 3 AA rechargeable batteries. 4 external electrodes. 5 Adapters 6. Pump 7 nozzles. 8 switches. 9 Weeding liquid. 10 Shoulder straps.

Claims

1. This weeder is characterized in that the number of batteries, originally four to six, is increased to six to eight AA rechargeable batteries in order to strengthen the electromotive force of the weeder, and the weight of the batteries can be reduced.

2. 2. A weeder according to claim 1, wherein two charging electrodes are provided at the inlet of the rechargeable battery of the weeder so that the battery can be charged at any time from the adapter after discharge.

3. 2. The weeder according to claim 1, wherein even an old weeder can be restored to a new weeder that generates an electromotive force equal to or greater than that of a new weeder by updating the battery part.

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