JPH11127656A - Mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize the travel state of a mower and improve the mowing work efficiency of the mower by devising the shapes of the travel wheels. SOLUTION: This mower has a cutting device, wide travel wheels 8 and an engine. Therein, large diameter portions 9, 9 are formed on both the sides of each of the travel wheels 8. A lug having a smaller diameter than that of the large diameter portion 9 is disposed at the lateral center of the travel wheel 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lawn mower for cutting weeds on the upper surface and slopes of ridges and banks.

[0002]

2. Description of the Related 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]

In the above-mentioned conventional mowing machine, a large-diameter portion having the same diameter as the large-diameter portions formed at both left and right end portions is also provided at the left and right center portions of the traveling wheel. For this reason, when traveling on a flat ground, the vehicle mainly travels by touching the three large-diameter portions at the left and right end portions and the center portion. For example, when working on the upper surface of a narrow ridge,
When traveling on a convex land, the large-diameter part 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 was not possible, and mowing work could not be carried out smoothly.

[0005]

The present invention employs the following technical means to solve the above-mentioned problems.
That is, in the mowing machine having the cutting blade device 7, the wide running wheels 8 and the prime mover 1, the running wheels 8 have large-diameter portions 9, 9 at both left and right end portions, and have left and right intermediate portions. The mowing machine is characterized in that lugs 10 smaller in diameter than the large diameter portions 9 are provided.

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 caught by the large-diameter portions 9, 9 formed at the left and right end portions of the wide traveling wheel 8, and the vehicle can travel on a slope, for example, in which the aircraft slides down in the inclined downward direction. .

Further, 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 so, there is little hindrance to the grounding of the large diameter portions 9, 9 on the left and right end portions, and the running state of the mower is stabilized. When working on flat ground, the large-diameter portions 9
As a result, the lug 10 in the left and right middle part is easy to float to the ground, and the grass cut by the cutting blade device 7
It is less likely to hinder passing below 0.

[0008]

As described above, according to the present invention, the cutting blade device 7 is provided.
And a mowing machine having wide running wheels 8 and the prime mover 1, the running wheels 8 have large-diameter portions 9, 9 at both left and right end portions thereof.
And a large-diameter portion 9,
Since the mowing machine has a configuration in which 10 lugs smaller in diameter than 9 are provided, the large-diameter portions 9 and 9 at both left and right end portions of the traveling wheel 8 and the 10 small-diameter lugs at the left and right intermediate portions run. Acting according to the condition of the surface, the running state of the mower can be stabilized, and the efficiency of mowing work can be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The undercarriage 2 has a motor 1 mounted thereon, is provided with wide and roller-like traveling wheels 8 at a lower portion to enable traveling, and has a handlebar 3 extending rearward at an upper surface. Then, as shown in FIG.
It is mounted so that it can be turned and fixed about 90 degrees to the side on a plane from the state extended backward, and a warning is given when the turning angle exceeds a certain angle and reaches a dangerous area.

The traveling wheel 8 is made of a rubber material and has a roller-like wide width, and a slant lug 10 for propulsion is formed on the surface thereof. A ring-shaped portion 9 having a larger diameter than the surface is provided. The running wheel 8 has a disk 11 having a larger diameter than the ring-shaped portion 9 on both end surfaces.
May be attached.

The cutting device (cutting blade device) 7 includes an endless band cutting blade 6.
Drive wheels 4 which are operatively connected to the prime mover 1
And a driven wheel 5 located outside one side of the chassis 2. 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.

The driven wheel 5 shown in the configuration example of FIG. 5 is mounted on a machine 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. Reference numeral 13 denotes a gage wheel.

The gage wheel 13 will be described with reference to FIGS. First, the front-reverse mechanism 14 is mounted on the chassis 2.
A T-shaped revolving shaft 16 is rotatably inserted from above into a support pipe 15 provided on the side of the shaft and tensioned downward, and a gage wheel 13 is mounted on the tip of the T-shaped revolving shaft 16. Support rod 1
7 is inserted. And the gage wheel 13
If the T-shaped pivot 16 is pulled up and turned over,
As shown in FIG. 6, it is possible to reverse from a rear position indicated by a solid line to a front position indicated by a virtual line.

If the lug is directed in the direction of rotation, as shown in FIG. 9, the gage wheel 13 can cause the grass in an overturned state, and can be positioned in front of the reaper 7. It is effective when The mowing operation will be described. 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 chassis 2
Is for cutting the weeds on the furrow while the inclined lug 10 exerts a propulsive action and proceeds in the state shown in FIG.

In this case, the mowing device 7 can travel and mowing while being stably supported by the front gage wheel 13 and the rear running wheel 8. During such a mowing operation, the traveling wheel 8 keeps the ring-shaped portion 9 and the disk 11 biting into the ground, and reduces the lateral swing (zigzag progress, one-sided progress, etc.). You can keep going straight.

The cut weeds pass through the endless cutting blades 6 to the rear and are discharged therefrom, are trampled by the running wheels 8 and reach rearward. Now, when weeding the weeds growing on the slope of the bank,
The handle 3 is turned by approximately 90 degrees from the state described above and fixed.
Then, while walking on the upper surface of the bank, the operator moves the chassis 2 sideways along the contour of the slope to start the reaping work.

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 inclining to one side. Despite the surface, it can go straight along the contour line.

If the vehicle is driven by ordinary wheels, the chassis
Although the vehicle moves while slipping to the lower side, the wheels shown in the embodiment of FIG. 1 or FIG. 2 are characterized in that they can keep relatively straight ahead and reduce the burden on the operator. 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. Less hinders the grounding of the large-diameter portions 9, 9 on the left and right end portions,
The running state of the mower becomes stable.

[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 showing 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]

 REFERENCE SIGNS LIST 1 motor 7 cutting blade device 8 running wheel 9 large diameter part 10 lug

Claims (1)

[Claims] 1. A mowing machine having a cutting blade device 7, wide running wheels 8, and a motor 1. The running wheels 8 have large diameter portions 9, 9 at both left and right ends thereof, and have a middle portion between them. A mowing machine characterized in that a lug (10) having a smaller diameter than the large-diameter parts (9, 9) is provided in the part.