JP3547323B2 - Mower - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mower for cutting weeds and the like on an upper surface and a slope such as a ridge and a bank.
[0002]
[Prior art]
BACKGROUND ART Conventionally, there is a mower equipped with a cutting blade device, running wheels, and a prime mover. As this type of mowing machine, for example, Japanese Patent Laid-Open No. 4-166012 discloses a mowing machine having a cutting blade device, wide running wheels, and a prime mover, wherein the running wheels have large diameter portions at both left and right end portions thereof. In addition, there is described a mower in which a large-diameter portion having the same diameter as the large-diameter portion is provided in the left and right central portions thereof.
[0003]
[Problems to be solved by the invention]
The conventional mower described above has a configuration in which large-diameter portions having the same diameter as large-diameter portions formed at both left and right end portions are also provided at the left and right center portions of the traveling wheel. For this reason, when traveling on flat ground, traveling mainly by grounding the three large-diameter portions at the left and right end portions and the central portion, for example, when traveling on the upper surface of a narrow ridge, When traveling on a convex land, the large-diameter portion provided at the center of the road comes into contact with the top of the convex land. Disappears.
[0004]
As a result, there was a problem that stable running could not be performed and mowing work could not be performed smoothly.
[0005]
[Means for Solving the Problems]
The present invention employs the following technical means to solve the above-mentioned problems. That is, the prime mover 1, a traveling wheel 8 to which power prime mover 1 is driven to rotate is transmission, the gauge wheels 13, a handle 3, in mowing machine comprising a mowing blade unit 7, the running wheels 8, A large-diameter portion 9 is formed at each of the left and right ends thereof, and a lug 10 having a small diameter with a step wider than the large-diameter portions 9 is provided at a middle portion between the left and right. Forming a small diameter portion, the cutting blade device 7 is disposed in front of the traveling wheel 8, the handle 3 extends rearward from the traveling wheel 8, and the gauge wheel 13 is wider than the traveling wheel 8. A mowing machine characterized in that the mowing machine is formed to be narrow and is provided so as to be changeable between a front position of the cutting blade device 7 and a rear position of the traveling wheel 8 .
[0006]
[Action]
With this configuration, the mowing machine runs on the wide running wheels 8 while mowing the grass with the cutting blade device 7 in front by the driving force of the prime mover 1. At this time, the traveling surface can be sufficiently caught and traveled by the large-diameter portions 9 and 9 formed at the left and right end portions of the wide traveling wheel 8, and, for example, even on a slope, the aircraft can skid in a downward slope direction. Less.
[0007]
Further, the small-diameter portion provided with the lug 10 provided at the left and right intermediate portion of the traveling wheel 8 is wider than the large-diameter portions 9 at the left and right end portions and has a small diameter with a step. Sometimes, even if the small-diameter portion with the lug 10 comes into contact with the ground, the grounding of the large-diameter portions 9 on the left and right end portions is hardly hindered, and the running state of the mower is stabilized.
[0008]
In addition, when working on a flat ground, the large-diameter portions 9 at the right and left end portions come into contact with the ground, so that the small-diameter portion with the lug 10 in the middle portion on the left and right easily floats to the ground and is cut by the cutting blade device 7. Grass is less likely to be obstructed from passing under the small-diameter portion with the lug 10.
In addition, the narrow gauge wheel 13 provided separately from the traveling wheel 8 allows the cutting height of the cutting blade device 7 to be maintained at an appropriate height, increases the straight traveling stability , and further allows the gauge wheel 13 to travel. The position can be changed between the front position of the cutting blade device 7 and the rear position of the traveling wheel 8 according to the condition of the ground, the condition of the grass to be cut, and the like.
[0009]
【The invention's effect】
As described above, the present invention relates to a mowing machine including the prime mover 1, the traveling wheels 8 driven by the power of the prime mover 1, the gauge wheels 13, the handle 3, and the cutting blade device 7 . , the running wheels 8, formed wider to thereby form a large-diameter portion 9, 9 on the left and right end portions, the right and left intermediate portions have and stepped in wider than the large diameter portion 9, 9 since those forming the small diameter portion of the attached lugs 10 whose diameter, and a small diameter portion dated the large diameter portion 9, 9 of right and left intermediate portions lug of the right and left end portions of the running wheels 8 according to the condition of the running surface By acting, the running state of the mower can be stabilized and the efficiency of mowing work can be improved. Further, the cutting blade device 7 is disposed in front of the traveling wheel 8, the handle 3 extends rearward from the traveling wheel 8, and the gauge wheel 13 is formed narrower than the traveling wheel 8. At the same time, since the position can be changed between the front position of the cutting blade device 7 and the rear position of the running wheel 8, the cutting height by the cutting blade device 7 can be maintained at an appropriate height, and the straight running stability can be improved. Further, the position can be changed between the front position of the cutting blade device 7 and the rear position of the traveling wheel 8 in accordance with the condition of the ground on which the gauge wheel 13 travels, the condition of the grass to be cut, and the like. I can do it for sure .
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The undercarriage 2 has a motor 1 mounted thereon, and has wide, roller-like traveling wheels 8 provided at a lower portion so as to be able to travel, and a handle 3 extending rearward is provided at an upper surface. Then, as shown in FIG. 3, the handle 3 is mounted so that it can be swiveled and fixed about 90 degrees to the side in a plane from the state extended backward, and when the swivel angle exceeds a certain angle and reaches the danger area. The alarm is configured.
[0011]
The running wheels 8 are made to have a roller-like wide width by using a rubber material. On the surface, inclined lugs 10 for propulsion are formed, and both end portions and an intermediate portion are larger than the wheel surface. A ring-shaped portion 9 having a diameter is provided. The traveling wheel 8 may have a configuration in which a disk 11 having a larger diameter than the ring-shaped portion 9 is attached to both end surfaces.
[0012]
A cutting device (cutting blade device) 7 is wound around a driving wheel 4, which is composed of an endless band cutting blade 6 and is communicatively connected to the prime mover 1, and a driven wheel 5 located outside one side of the chassis 2. Make up. The mowing device 7 is configured to rotate with driving and to mow the grass root side by the endless band cutting blade 6 on the lower surface side.
[0013]
In addition, the driven wheel 5 shown in the configuration example of FIG. 5 is mounted on a body 12 which is detachably attached to the chassis 2 supporting the driving wheel 4. With this configuration, the configuration is simpler than that of the related art, and the device can be manufactured at low cost.
[0014]
Reference numeral 13 denotes a gage wheel.
The gage wheel 13 will be described with reference to FIGS. First, the back-and-forth reversing mechanism 14 rotatably inserts a T-shaped pivot shaft 16 from above into a support pipe 15 provided on the side of the chassis 2 and tensions the T-shaped pivot shaft 16 downward. And a support rod 17 on which a gage wheel 13 is mounted is inserted.
[0015]
When the T-shaped turning shaft 16 is pulled up and inverted, as shown in FIG. 6, the gage wheel 13 can be inverted from a rear position shown by a solid line to a front position shown by a virtual line. It is.
When the gage wheel 13 has a configuration in which the lugs are directed in the rotation direction, as shown in FIG. 9, it is possible to cause the grass in an overturned state, and the effect is obtained when the gage wheel 13 is located in front of the reaper 7. It is a target.
[0016]
Explaining the mowing work, first, the mowing device 7 starts the motor 1 and transmits the driving wheel 4, so that the endless band cutting blade 6 starts rotating to be in a mowing system. When the traveling wheels 8 are driven, the undercarriage 2 cuts the weeds on the furrows while the inclined lugs 10 exert a propulsive action and progress in the state shown in FIG.
[0017]
In this case, the mowing device 7 can stably move and mowing while being supported by the front gage wheel 13 and the traveling wheel 8 behind. During such a mowing operation, the traveling wheel 8 keeps the ring-shaped portion 9 and the disk 11 biting into the ground to reduce the lateral swing (zigzag, one-sided, etc.). You can keep going straight.
[0018]
The cut weeds pass through between the endless band cutting blades 6 and are discharged to the rear side, are trampled by the traveling wheels 8 and reach rearward. When the weeds growing on the slope of the bank are to be cut next, first, the handle 3 is turned by approximately 90 degrees from the state shown in FIG. 3 to be fixed.
Then, while walking on the upper surface of the bank, the operator moves the chassis 2 sideways along the contour line of the slope to start the mowing operation.
[0019]
That is, the worker is in a state of walking along the side of the chassis 2 moving forward while cutting. When the work is continued in this manner, the undercarriage 2 prevents the ring-shaped portion 9 of the traveling wheel 8 from rotating in the lateral direction (the direction of the axle) by catching the ground and rotating, and tilts to one side. Despite the plane, it can go straight along the contour line.
[0020]
In the case of traveling with normal wheels, the chassis moves while slipping to the lower side, but according to the wheels shown in the embodiment of FIG. 1 or FIG. 2, it is possible to keep relatively straight ahead and There is a feature that can reduce the burden. Further, since the lug 10 provided at the left and right intermediate portion of the traveling wheel 8 has a smaller diameter than the large diameter portions 9 at the left and right end portions, even when the lug 10 is grounded during traveling on a convex ground, for example. The grounding of the large-diameter portions 9, 9 on the left and right end portions is hardly hindered, and the running state of the mower is stabilized.
[Brief description of the drawings]
FIG. 1 is a front view of running wheels showing an embodiment of the present invention.
FIG. 2 is a front view of another configuration of the traveling wheel according to the embodiment of the present invention.
FIG. 3 is a plan view of the ridge mower showing the embodiment of the present invention.
FIG. 4 is a side view of the ridge mower showing the embodiment of the present invention.
FIG. 5 is a front view showing a part of the furrow mower showing the embodiment of the present invention.
FIG. 6 is a plan view of the ridge mower showing the embodiment of the present invention.
FIG. 7 is a side view of the ridge mower showing the embodiment of the present invention.
FIG. 8 is a side view of a part of the ridge mower showing the embodiment of the present invention.
FIG. 9 is a side view of a part of the ridge mower showing the embodiment of the present invention.
[Explanation of symbols]
1 prime mover
3 Handle 7 Cutting blade device 8 Running wheel 9 Large diameter part 10 Lug
13 gauge wheel

Claims (1)

In a mowing machine equipped with a prime mover 1, a traveling wheel 8 to which the power of the prime mover 1 is transmitted and driven to rotate, a gauge wheel 13, a handle 3, and a cutting blade device 7 ,
Small the running wheels 8, formed wider to thereby form a large-diameter portion 9, 9 on the left and right end portions, the right and left intermediate portions have and stepped in wider than the large diameter portion 9, 9 Forming a small diameter portion with lug 10
The cutting blade device 7 is disposed on the front side of the traveling wheel 8,
The handle 3 extends rearward from the traveling wheel 8,
The mowing machine is characterized in that the gauge wheel 13 is formed narrower than the traveling wheel 8 and is provided so as to be changeable between a front position of the cutting blade device 7 and a rear position of the traveling wheel 8 .

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