JPH07107867A - Lawn mower - Google Patents

Abstract

PURPOSE:To sterilize mowed lawn, prevent the secondary damage induced by sterilization and prevent the secondary infection caused by a cutter. CONSTITUTION:This lawn mower is composed of a mowing vehicle 10 provided with a lawn-mowing cutter 11, an ozonized water generation means 20 attached to the vehicle and an ozonized water sprinkling means 30 placed behind the cutter 11. The ozonized water sprinkling means 30 sprinkles ozonized water to lawn and the cutter 11 by rotation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lawnmower for mowing lawns and other grass at a golf course or the like, and more particularly to a lawnmower for performing sterilization at the same time as mowing.

[0002]

2. Description of the Related Art In a golf course, lawn management is important, and lawn mowing is performed as part of it. One of the problems in lawn mowing is that cutting the lawn with a rotary cutter or the like may damage the lawn and cause pathogens peculiar to the lawn to enter through the wound.

[0003] In particular, when lawn mowing is performed with a green infested with a pathogen and another green lawn is mowed by the cutter, the pathogen attached to the cutter invades the green, and the entire green is invaded by the pathogen. Will end up.

In order to prevent this, generally, after the lawnmower is used in green, the cutter and the like are sterilized with steam. In addition, JP-A-4-40
Japanese Patent No. 818 discloses a measure in which a lawn mower is equipped with a chlorine water spraying means and sprays chlorine water on a lawn at the same time as mowing.

[0005]

However, frequent steam sterilization causes a reduction in work efficiency. Further, even if sterilized by steam, if lawn mowing is carried out the next day, pathogenic bacteria will adhere and be scattered in the subsequent lawn mowing, so it cannot be said that it is a very effective measure from the viewpoint of sterilizing property.

On the other hand, as a measure for sprinkling chlorine water, residual chlorine hinders the growth of lawn, and chlorine itself promotes the oxidation of iron constituting the lawn mower, which causes a problem of durability of the lawn mower. To spray chlorine water on the lawn after mowing,
Even if some pathogens adhere to the cutter, it does not cause a serious problem. However, if left unattended, secondary infection through the cutter still poses a problem, and steam sterilization of the cutter is an essential task. Therefore, work efficiency is lowered.

An object of the present invention is to provide a lawn mower which is capable of strongly sterilizing a lawn that has been cut, without having secondary adverse effects such as iron oxidation and inhibition of growth of lawn, and which can easily prevent secondary infection through a cutter. To provide.

[0008]

A lawnmower according to the present invention is a lawnmower equipped with a cutter that is self-propelled or connected to a self-propelled vehicle to travel on the ground and trims lawn on the ground. Mounted on or connected to a lawnmower vehicle, ozone water generating means for generating ozone water by dissolving ozone generated from an ozone generator in water, and attached to the lawnmower vehicle positioned behind the cutter, It is provided with ozone water spraying means for spraying ozone water introduced from the ozone water generator toward the ground and the cutter.

[0009]

[Operation] Ozone water is sprayed on the lawn after cutting by the cutter, so that the wound caused by the cutting can be sterilized. Ozone contained in ozone water has a strong disinfecting power for the wound due to its strong bactericidal action, and at the same time, it disappears in a relatively short time and there is no possibility of causing a secondary adverse effect. Since the ozone water is sprayed not only on the lawn but also on the cutter, secondary infection through the cutter can be prevented without sterilizing the cutter with steam.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the configuration of an example of a lawnmower embodying the present invention, and FIG. 2 is a front view of ozone water spraying means.

The lawn mowing vehicle 10 is a self-propelled vehicle that travels on the ground by mounting an engine or a motor on the rear portion thereof, and is equipped with a rotary cutter 11 at the foremost portion so as to mow the lawn on the ground. ing.

On the front part of the lawnmower vehicle 10, ozone water producing means 20 is mounted. The ozone water generating means 20 is
It consists of a discharge type ozone generator, a water tank, a mixer that dissolves ozone in water, and the like.
It continuously produces ozone water.

At the front part of the lawnmower vehicle 10, an ozone water spraying means 30 is further provided directly behind the rotary cutter 11. The ozone water spraying means 30 has a header 31 extending in the lateral direction of the lawnmower vehicle 10 and a large number of nozzles 32 attached to the header 31 at intervals in the longitudinal direction. The ozone water introduced into 31 is ejected from a large number of nozzles 32 over substantially the entire width of the lawnmower vehicle 10.

The header 31 is attached to the lawnmower vehicle 10 so as to be rotatable about its central axis, and is rotationally driven by a power source such as a motor (not shown). Then, by operating the power source from the driver's cab, the header 3
1 is a spraying position in which the nozzle 32 faces downward, and the nozzle 3
2 is switched to the front, that is, the cutter processing position facing the rotary cutter 11.

When mowing the lawn, the lawn mowing vehicle 10 runs on the green of the golf course while fixing the header 31 to the spraying position, ejecting ozone water from a number of nozzles 32, and rotating the rotary cutter 11. To do.

As a result, the green grass is mowed and ozone water is sprayed on the grass immediately after mowing. As a result, the cut wound of the lawn is sterilized by the ozone in the ozone water. This ozone is decomposed into oxygen in a relatively short time after spraying and disappears, so that a secondary harmful effect does not occur.

The ozone water producing means 20 is mounted on the front part of the lawnmower vehicle 10 in order to shorten the ozone water supply system path to the ozone spraying means 30 and to suppress the decomposition of ozone in the system path. This is because the sterilization effect is further enhanced by prolonging the ozone staying time after spraying.

The ozone concentration in ozone water is 5 to 20 pp
m is preferred. If it is less than 5 ppm, the bactericidal effect against lawn-specific pathogenic bacteria is only about 50%, and if it exceeds 20 ppm, decolorization of turf chlorophyll occurs. However, it returns to normal after 42 hours have passed since decolorization. The destruction of the veins is irrelevant.

After the lawn mowing or during the lawn mowing, the header 31 is switched from the spraying position to the cutter processing position. As a result, a large number of nozzles 32 face the rotary cutter 11, and in this state the rotary cutter 11
By spraying ozone water from a large number of nozzles 32 while rotating, the ozone water is sprayed on the rotary cutter 11 over the entire circumference and the entire length. As a result, the rotary cutter 11 is automatically sterilized. It goes without saying that the sprayed ozone water has no risk of promoting the oxidation of the lawnmower vehicle 10.

The lawnmower of the present invention may be of a non-self-propelled type which is connected to another self-propelled vehicle to travel. Means may be provided for collecting the mowed lawn if desired. Furthermore, means for incinerating the collected lawn can be provided.

The header 31 of the ozone water spraying means 30 is
You may rotate around the center other than the center of the header 31 by a turning mechanism. Even in this case, the header 31 is rotated around the center, and the spraying position and the cutter processing position can be switched. Further, it goes without saying that the ozone water spraying means 30 can be provided independently for the lawn and the cutter.

[0022]

As described above, the lawnmower of the present invention can strongly sterilize the wound of lawn caused by mowing with ozone water and prevent the invasion of pathogenic bacteria from the wound.
Since ozone is decomposed and disappeared, secondary effects such as iron oxidation and lawn growth inhibition do not occur. Since ozone water that sterilizes the lawn is also used to sterilize the cutter, secondary infection through the cutter can be reliably prevented, and steam sterilization is not required, resulting in a significant improvement in work efficiency.

[Brief description of drawings]

FIG. 1 is a side view showing the configuration of an example of a lawnmower embodying the present invention.

FIG. 2 is a front view of ozone water spraying means.

[Explanation of symbols]

 10 Lawn Mowing Vehicle 11 Cutter 20 Ozone Water Generating Means 30 Ozone Water Dispersing Means

Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location C02F 1/50 520 Z 9045-4D 531 R 9045-4D 540 B 9045-4D 550 A 9045-4D 1/78

Claims (2)

[Claims] 1. A lawn mowing vehicle equipped with a cutter that is self-propelled or connected to a self-propelled vehicle and that cuts lawn on the ground, and an ozone generator mounted or coupled to the lawn mowing vehicle. Ozone water generating means for generating ozone water by dissolving more generated ozone in water, and ozone water introduced from the ozone water generating device above the cutter, which is attached to the lawnmower vehicle, is installed on the ground. And a ozone water spraying means for spraying toward the cutter. 2. The ozone water spraying means has a header extending in the vehicle width direction of a lawnmower vehicle, and a plurality of nozzles provided in the header at intervals in the longitudinal direction thereof, and a central axis of the header. The lawnmower according to claim 1, wherein the jetting direction of the ozone water is switched between the direction toward the ground and the direction toward the cutter by the movement accompanied by the rotation.