JPH0220909Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention is equipped with a mower section that rotates on a vertical axis and a guide rotor that is located above the mower section and is displaced toward the cutting down side of the stem culm. The present invention relates to a vertical shaft rotary mower that is equipped with a weeding guide rod on the side that is used for cutting the stems, and in particular, improvements have been made to the weeding device that is constituted by the weeding guide rod. related to things.

(B) Prior Art In the prior art vertical axis rotary mower having the above configuration, the grass cutting guide rod for separating and guiding the stem culms in the reaping area and the stem culms in the non-reaping area is located at the tip in plan view. The guide rotor is positioned slightly inside the mower part's rotational trajectory advancing area, and of the inner and outer edges connected to the tip, the former is inclined and extended toward the inside of the guide rotor's rotational trajectory, and the latter is stretched outward from the mower part's rotational trajectory. Although the structure is such that the weeding guide rod is inclined and extended to the rear, the outer edge of the weeding guide rod is inclined to become higher from the tip toward the rear when viewed from the side.
The structure is such that the extending portion that slopes toward the rear height is located far higher than the mower portion.

(c) Problems that the invention aims to solve By the way, in a grass mower that cuts the stem culm with a mower part (cutting blade part) that rotates around a vertical axis,
The mower section, which moves forward as the machine moves forward, cuts accurately and leaves clean cutting marks near the center of the front of the mower, but even within the rotational trajectory of the mower, it cuts to the side outside of the center of the front of the mower. There are some areas where the cutting is not done properly, resulting in uncut areas, resulting in uneven cutting marks. Therefore, the tip of the weeding guide rod is positioned inside the mower rotation locus advancement area, and the inner and outer edges extending rearward from the tip move the stem culm to the side of the mower rotation locus. This is done to reduce irregular cutting areas by guiding the weeding guide rod away from the tip, but in the prior art, as explained above, the outer edge of the weeding guide rod is directed backward from the tip. The upper part of the stem culm on the non-reaping side is located near the side of the rotation trajectory of the mower. Although they are expelled outward from the stem, the degree of outward expulsion of the important part near the base of the culm becomes weaker, so due to insufficient removal of the culm base, something may come into contact with the mower part and be accidentally cut. It has the disadvantage that it can be damaged and the intended function cannot be achieved properly.

Therefore, the present invention was carried out with the aim of providing a weeding device that eliminates the above-mentioned drawbacks of the prior art.

(d) Means for solving the problems In order to achieve the above purpose, the present invention takes the following measures.

That is, a mower part 6 that rotates around the vertical axis at the lower front of the machine body 1 and a guide rotor 7 that is located above the mower part 6 and is displaced toward the cutting down side of the stem culm and also rotate about the vertical axis are combined. A grass cutting guide rod 13 is installed on the mowing start side of the mower section 6, and the tip 13a of the grass cutting guide rod 13 is located at a point where the tip 13a slightly enters inside the rotation locus advancement area d of the mower section 6. The inner edge 13c connected to the tip 13a goes inward toward the rear and is guided into the rotation trajectory s of the guide rotor 7, and the outer edge 13b connected to the tip 13a moves outward toward the rear. In a vertical shaft rotary mower configured to project out at least in front of the mower part 6 and out of the cutting action range of the mower part 6, the outer edge 1 of the grass dividing guide rod 13
3b is tilted downward from the tip 13a toward the vicinity of the front end of the mower section 6 in side view, and the portion extending further rearward from the downwardly inclined end near the front end of the mower section is the mower section 6.
The weed cutting device is arranged to be positioned substantially parallel to the ground at a location substantially at the same height as the cutting blade 9.

(E) Effect Therefore, according to the vertical shaft rotary mower of the present invention, the rotation locus progress area d of the mower part 6
Among the stem culms that are separated into the inside and outside by the tip 13a of the weeding guide rod 13 located inwardly, the one inside the tip 13a is placed in the center of the entire surface of the mower section 6 by the inner edge 13c. It is guided towards the target, and the mowing marks are cut in a good condition.
While being discharged by the guide rotor 7 located above the mower section 6, the stem culm located outside the tip 13a is removed toward the outside of the machine body by the outer edge 13b. teeth,
In addition to the outer edge 13b of the weeding guide rod 13 extending diagonally backward and outward in a plan view, the outer edge 13b is also inclined downward from the tip 13a toward the front end of the mower part 6 in a side view. The portion extending to the mower section 6 is located approximately parallel to the ground at approximately the same height as the cutting blade 9 of the mower section 6, thereby preventing an uncertain cutting area of the mower section 6, i.e. The outer edge 13b of the weeding guide rod is such that the stem culm that comes into contact with the cutting blade at the side part away from the center of the front surface is located approximately parallel to the ground at approximately the same height as the cutting blade. As a result, the cutting blade 9 is not involved and is accurately and smoothly repelled outward, thereby preventing irregular cutting.

(F) Embodiments Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

Figures 1 to 3 are a plan view, a side view, and a front view of a vertical shaft rotary mower that implements a grass cutting device according to the present invention. , an engine 3 is installed at the rear, a transmission element 4 is installed at the front, and a handle 5 is extended to the rear.

The power transmitted to the transmission element 4 is transferred to a mower section 6 installed at the lower front of the machine body 1 so as to rotate around a vertical axis.
In addition to being transmitted to the guide rotor 7, which is located above the mower section 6 and is installed to rotate about a vertical axis.

The mower section 6 has an appropriate number of cutting blades 9 on the outer periphery of the disk 8.
..., a grounding cup 10 is attached to the back surface, and the guide rotor 7 has several arms 12 attached to a foil 11 so that the amount of protrusion from the foil 11 can be changed. Note that the guide rotor 7 is normally displaced slightly further forward and inward than the mower section 6.

In the present invention, in the weeding guide rod 13 that is provided at the frontmost part of the machine body 1 and protruding forward, the tip 13a of this weeding guide rod 13 is located at a point where the tip 13a of the weeding guide rod 13 slightly enters inside the rotation locus advancement area d of the mower section 6. On the other hand, its outer edge 13b extends outward as it goes rearward in a plan view, and is guided outward at least in front of the rotation trajectory t of the mower section 6, and furthermore, in a side view (see FIG. 2), , a portion that slopes downward from the tip 13a toward the vicinity of the front end of the mower section 6 and extends rearward from the tip 13a is formed so that the mower section 6 is located at approximately the same height, and the inner edge 13c is a flat surface. As it goes rearward in view, it goes inward and is guided out toward the center of the entire surface of the mower section 6 within the rotation locus s of the guide rotor 7.

In a vertical axis rotary mower having a weeding device formed by the weeding guide rod 13 having such a configuration, the tip 13a of the weeding guide rod 13 moves toward the stem culm located inside the advancing line L. is guided near the central entire surface of the mower section 6 by the inner edge 13c, the stem base is cut in good condition, and the cut stem culm is discharged to the outside of the machine body by the guide rotor 7.

On the other hand, at the same time as above, the stem culm on the outside of the advancement line L extends diagonally backward and outward in plan view, and in side view it is tilted downward from the tip 13a toward the vicinity of the tip of the mower part 6, and further back. The extending portion is guided by the outer edge 13b, which is located at approximately the same height as the cutting blade of the mower and is positioned approximately parallel to the ground, so that the entire culm from the culm base is cut by the mower. It is removed so that it is not subjected to the cutting action.

In addition, as shown in FIG.
In some cases, the guide rotor is installed inside the guide rotor's 7-rotation locus advancing area w, and when installed in this way, the upper part of the stem culm in the reaping area is not forced. The guide rotor 7 is guided to the engagement area of the guide rotor 7 without having to take a tilted posture, and good guided discharge without disturbance in posture is performed.

(g) Effect of the device As explained above, in this device, the tip 13a
extends the inner edge 13c of the weeding guide rod 13, which is positioned within the rotation locus advancement area d of the mower section 6, toward the center of the front surface of the mower section, and the outer edge 13b in plan view. In this case, it is guided outward in front of the mower part 6, and in side view, the tip 1
3a toward the vicinity of the front end of the mower section 6, tilting downward;
Since the part extending further rearward from the downwardly inclined end near the mower part is located at approximately the same height as the cutting blade 9 of the mower part 6 and is located approximately parallel to the ground, it is possible to cut The stem culm to be cut is accurately guided by the inner edge 13c from the tip 13a of the weeding guide rod 13 towards the center of the front of the mower section 6 where accurate cutting action is performed, and the stem culm is neatly trimmed with a clean mowing mark. The other stem culms are separated outward (uncut culm side) from the tip 13a, and the culm base is placed in the mower section 6.
Even if the mower part 6 slightly enters the rotation locus advancement area d, the cutting action is performed by the outer edge 13b so that the central part of the advancing front of the mower part 6 is guided to a part away from the uncut culm side and the cutting blade 9 does not touch it. It is removed from the culm out of range, and at that time, since the trailing portion of the outer edge 13b is located at approximately the same height as the cutting blade 9 and approximately parallel to the ground, the cutting blade is The rear extension portion reliably and effortlessly guides the re-approaching stem culm portion to the outside without any leakage, and as a result, the cutting with a clean mowing mark is carried out well as a whole.
It also has the role of preventing danger from the cutting blade.

Since the tip 13a of the weeding guide rod 13 is arranged at a position higher than the ground, visibility from the operator is good, steering stability is achieved, and the approach of the weeding guide rod 13 to the stem culm is controlled. This has the effect that it can be easily confirmed.

[Brief explanation of the drawing]

The drawings show specific embodiments of the present invention.
FIG. 1 is a plan view of a vertical shaft rotating type mower according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a front view thereof. DESCRIPTION OF SYMBOLS 1... Body, 6... Mower part, 7... Guide rotor, 7... Guide rotor, 13... Grass cutting guide rod, 13a... Tip of grass cutting guide rod, 13b...
Outer edge of the weeding guide rod, 13c... Inner edge of the weeding guide rod, 14... Stem culm, d... Rotation locus progression area of the mower section, t... Rotation trajectory of the mower section, s... Guide rotor rotation locus.

Claims (1)

[Claims for Utility Model Registration] 1. A mower part 6 that rotates around the vertical axis at the lower front of the machine body 1, and a mower part 6 that is above this mower part 6 and is displaced toward the cutting down side of the stem culm and also rotates on the vertical axis. A grass cutting guide rod 13 is installed on the mowing start side of the mower section 6, and when the grass cutting guide rod 13 is viewed from above, its tip 13a is connected to the mower section 6.
The inner edge 13c is located at a point slightly inside the rotation locus progress area d and is connected to the tip 13a.
goes inward toward the rear and extends so as to enter the rotation trajectory S of the guide rotor 7, and the outer edge 13b connected to the tip 13a protrudes outward toward the rear and is at least wider than the mower section 6. In the vertical shaft rotating type long culm mower configured to project out of the cutting action area of the mower section 6 at the front, the outer edge 13 of the weeding guide rod 13
b is inclined downward from the tip 13a toward the vicinity of the front end of the mower section 6 in side view, and the portion extending further rearward from the downwardly inclined end attached to the front end of the mower section 6 is the cutting blade 9 of the mower section 6. 1. A weed cutting device for a vertical shaft rotating long culm mower, characterized in that the weed cutting device is positioned substantially parallel to the ground at a location substantially at the same height as the vertical axis rotating type mower for long culms. 2. The weeding device for a vertical axis rotating long culm mower as claimed in claim 1, wherein the tip 13a of the weeding guide rod 13 is positioned within the rotation locus advancement area W of the guide rotor 7.