JPH0928266A - Lawn mowing working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lawn mowing working machine capable of saving labors in control operations of turf and providing high chemical spraying effects. SOLUTION: This lawn mowing working machine is obtained by installing a chemical tank 30 on a machine body frame 11 and further fitting nozzles 31 for jetting the chemical so as to spray the chemical in the chemical tank 30 onto the side of rotating blades 18 near the rotating blades 18 in the lawn mowing working machine 10 having the rotating blades 18 and a cover covering the rotating blades 18 around a horizontal shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lawn mowing work machine, and more particularly to a lawn mowing work machine for lawn management capable of simultaneously performing lawn mowing and pest control work.

[0002]

2. Description of the Related Art In the management of lawns in parks, golf courses, etc., maintaining a constant height of the grass and keeping the grass in an activated state are both important requirements. Lawn mowing work is performed at relatively short intervals, and immediately after the mowing work, chemical spraying and spraying work for removing weeds and pests is performed as another work. Performing chemical spraying or spraying immediately after mowing work may not be effective unless spraying or spraying after damaging the lawn or weeds depending on the type of chemical. This is because the pathogenic bacteria tend to enter from there if left for a while.

Generally, a lawn mower is used for cutting grass, and a power sprayer, a mist machine, etc. are used for spraying and spraying chemicals.

[0004]

[Problems to be Solved by the Invention] Performing the two operations of mowing the lawn and spraying (spraying) the chemicals as separate operations is a large amount of work, and if two operations are completed at the same time in one operation, it may occur. If possible, work efficiency will be greatly improved. Therefore, a work machine capable of performing both works at the same time is required. Further, simultaneous pruning and spraying or spraying of the drug means that the drug effectively acts on the leaf cross section immediately after the rupture, and since the drug effect can be enhanced, both operations can be performed simultaneously from this point as well. A work machine is required.

Further, spraying or spraying a drug using a power sprayer or the like is, so to speak, an operation in an open space, and is easily scattered by wind or the like, resulting in non-uniform spraying and underspraying in necessary places. Alternatively, there is a disadvantage that uneven spraying of chemicals or the occurrence of drug damage is likely to occur due to overlapping spraying. Generally, in the drug spraying operation, the amount of the drug sprayed is more than the amount required for calculation in order to eliminate the occurrence of an underdispersed area, which is not preferable. In addition, it is desirable to avoid the drug as much as possible if it is possible for the drug to diffuse to places other than the spray target area.

For these reasons, the conventional spraying of chemicals using a power sprayer or the like is not always satisfactory, and a working machine capable of effectively spraying chemicals in a limited closed space is demanded. Has been. The present invention has an object to eliminate the above-mentioned inconveniences of chemical spraying in lawn management, and more specifically, to perform lawn management work by simultaneously performing lawn mowing and chemical spraying. It saves a lot of labor and requires less medicine,
An object of the present invention is to obtain a lawnmower capable of imparting a higher medicinal effect to lawns or weeds.

[0007]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems is a lawnmower having a rotary blade around a horizontal axis and a cover for covering the rotary blade, which is provided on a machine body frame. A lawn mowing work machine having a medicine tank, further comprising a medicine spraying nozzle arranged so as to spray the medicine in the medicine tank toward the rotary blade side is arranged in proximity to the rotary blade. Disclose.

According to the lawnmower according to the present invention, the medicine from the medicine tank set on the frame is arranged in the vicinity of the rotary blade on the rotary blade which rotates around the horizontal axis during the lawnmower work. It is always sprayed from the nozzle. Then, the medicine from the nozzle is constantly scattered in the semi-closed space defined by the cover covering the rotary blade during the mowing work. Therefore, the probability that the surface of the rotary blade as the cutting blade is wet with the chemical becomes very high, and the chemical adhering to the blade is likely to penetrate into the leaf from the cut surface of the leaf at the same time when the lawn is cut. Thereby, the medicinal effect is remarkably improved.

Further, a part of the leaf pieces once cut is scattered while circulating together with the rotary blade in the semi-closed space where the medicine is scattered, and further touches the medicine in the process.
The medicinal effect is further enhanced because such leaf pieces fall and wet the lawn mowed surface. Furthermore, most of the chemicals blown out from the nozzle only scatter in the semi-closed space defined by the cover that covers the rotary blade, and since the amount of leakage to the outside is small, it has little impact on the environment, Moreover, a high medicinal effect is achieved with a small amount of use.

There is no particular limitation on the chemicals used in the lawnmower of the present invention, but it exerts a medicinal effect by invasion from the cut surface of plants such as, for example, ortholane emulsion, grasten wettable powder, and microbial agent for controlling Poa annua. It is particularly effective to use the drug having the property of In addition, even if it is a bactericidal agent such as Dacogreen, Topzin M wettable powder, Benlate T wettable powder, Lobral wettable powder, etc. for preventing invasion of pathogenic bacteria from the cut surface of the lawn after the lawn mowing work. Well, even in that case, it is possible to apply it to the cut surface of the lawn at the same time as lawn mowing, and high chemical efficacy can be expected.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a lawnmower according to the present invention, and FIG. 2 is a side view with a partial cross section showing a main part.

This lawnmower working machine 10 has a body frame 11
An engine 12 is mounted on the machine body frame 11, an operation handle 13 is provided on the rear side of the machine body frame 11, and side frames 14, 1 are provided on both sides.
4 is attached. Axle 1 on body frame 11
5 is rotatably supported via bearings (not shown), and drive wheels 16 are attached to both ends of the axle 15. The rotational force of the engine 12 is transmitted to the axle 15 via a power transmission mechanism (not shown), and the drive wheels 16 are driven to drive the lawnmower working machine 10.

A horizontal rotary shaft 17 is provided between the side frames 14 and 14 in front of the drive axle 15.
Are rotatably supported by bearings 17a.
A rotary blade 18 is attached to the. The horizontal shaft 17 is also rotated by the engine 12 via a power transmission mechanism (not shown) to cut the lawn. The rotary blade 18 and the axle 1
5, a cover 19 is attached so as to cover the rear side and the upper side of the rotary blade 18, so that the lawn pieces cut by the rotary blade 18 are prevented from scattering backward and at the same time forward. It also serves as a guide for the transportation of the. Further, below the rotary blade 18, the fixed blade 2 is provided between the side frames 14 in a state of being in contact with the rotation trajectory of the blade body.
0 is fixed.

Further, a gauge roller 22 is rotatably mounted at a position in front of the horizontal shaft 17 via vertical adjustment mechanisms 21 and 21 attached near the tips of the side frames 14 and 14, respectively. The cutting height of the lawn is adjusted by operating the adjusting mechanisms 21 and 21 to adjust the mounting position of the gauge roller 22 with respect to the support frame 14 in the height direction.

The above-described structure of the lawnmower working machine 10 is similar to that of a conventionally known lawnmower having a rotary blade that rotates around a horizontal axis. Therefore, although not shown, a so-called thatching reel may be attached to the position immediately in front of the rotary blade 18 as in the conventional lawn mower,
A grass box may be detachably attached to the front end positions of the side frames 14 and 14, or a fertilizer sprayer or the like may be connected to the main body frame 11.

In the lawnmower 10 according to the present invention, the chemical tank 30 is detachably mounted on the main body frame 11, and the rotary blade 1 is provided in front of the rotary blade 18.
A plurality of drug ejection nozzles 31 are attached in a posture in which the ejection port faces the direction of 8. Nozzle 31 for ejecting each drug
Communicates with a hollow pipe 32 extending in the horizontal direction, one end of the hollow pipe 32 is closed, and the other end passes through the side frame 14 and extends laterally.

Further, a conventionally known pump 33 for liquid pressure feeding is attached to the main body frame 11 near the mounting position of the medicine tank 30, and the suction side of the pump 33 is connected to the medicine tank via a pipe (not shown). The hollow pipe 32 communicates with the inside of the hollow pipe 30, and the discharge side is connected to the open end side of the hollow pipe 32 through a pipe 34.

Next, the operation of the lawnmower will be described. As described above, the function of the lawnmower as a lawnmower is similar to that conventionally known, and the lawnmower work is performed in the same manner. However, in the lawnmower according to the present invention, the pump 33 for liquid pressure feeding is operated at any time during lawn mowing work, or when required, so that the medicine in the medicine tank 30 is ejected from the medicine ejection nozzle 31. It sprays toward the rotary blade 18 side. The surface of the rotary blade 18 that rotates around the horizontal axis 17 is wetted by the sprayed chemicals, and the chemicals adhering to the rotary blade 18 penetrate into the leaves from the cut surface of the grass at the same time as cutting the grass. Thereby,
A high medicinal effect is achieved.

In particular, in the lawnmower according to the present invention, the medicine from the nozzle 31 covers the rotary blade 18 with the cover 1.
Most of them are scattered in the semi-closed space divided by 9. Therefore, the probability that the surface of the rotary blade 18 gets wet with the medicine becomes very high. Further, the leaf pieces mowed by the rotary blade 18 scatter and circulate along with the rotary blade 18 in the semi-closed space where the chemical is scattered, and in the process, they come into contact with the chemical. The medicinal effect is further enhanced as such leaf pieces fall and come into contact with the mowed surface.

Further, most of the chemicals blown out from the nozzle 31 only scatter in the semi-closed space defined by the cover 19 covering the rotary blade 18, and the amount of leakage to the outside is small, so it is environmentally friendly. It has little effect and shows high medicinal effect with a small dose.

In the above description, the medicine ejecting nozzle 31 is attached to the hollow pipe 32 extending in the horizontal direction. In short, the medicine is semi-closed by the cover 19 covering the rotary blade 18. It may be sprayed toward the rotary blade 18 side so as to be scattered in the space, and a large number of small openings may be provided in the hollow pipe 32 so that the hollow pipe 32 is directly jetted therefrom. Further, the spray angle may be in the range as long as it is oriented in the direction of the rotary blade 18.

[0022]

EFFECTS OF THE INVENTION According to the present invention, it is possible to carry out a chemical spraying work at the same time as the lawn mowing work to save labor and to expose the cut surface of the leaf immediately after cutting to the chemical, High medicinal effect can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a lawnmower working machine according to the present invention.

FIG. 2 is a partially cutaway side view showing a main part of the apparatus shown in FIG.

[Explanation of Codes] 11 ... Main body frame, 17 ... Horizontal rotary shaft, 18 ... Rotating blade, 19 ... Cover, 22 ... Gauge roller, 30 ... Drug tank, 31 ... Drug ejection nozzle, 33 ... Pump

Claims (1)

[Claims] 1. A lawnmower working machine having a rotary blade around a horizontal axis and a cover for covering the rotary blade, wherein the working machine has a chemical tank on a machine body frame, and the chemical in the chemical tank A lawn mowing machine characterized in that a chemical spray nozzle, which is adapted to spray toward the rotary blade side, is arranged close to the rotary blade.