JPH08113001A - Wheel for paddy field control work - Google Patents

Abstract

PURPOSE: To provide a wheel which can be installed on a passenger traveling car body and by which various control works can be accurately performed by easily riding into the paddy field in a growing period and vibration at road surface traveling time can be reduced. CONSTITUTION: A wheel body 7 is composed of a sheet metal-made hollow body where a sinking part in the paddy field and a part exposed from the paddy field surface have a lateral width of about 1/3 to 1/2 of a space between rice stubble strips as a whole and have a flat side surface, and a large number of angle-shaped lugs 8 formed almost in the same width with the wheel lateral width are protrusively arranged on the outer periphery of this wheel body 7, and an auxiliary plate 9 which is slightly lower than a projecting hight of the angle-shaped lugs 9 and runs in the circumferential direction, is arranged between the respective lugs 8 and 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to paddy field management work such as top-dressing work in paddy fields after transplanting or sowing (direct sowing), chemical spraying work such as control or herbicide spraying, drainage grooving work, etc. The present invention relates to a wheel suitable for carrying out a main body of a riding rice transplanter or a riding vehicle such as an agricultural tractor.

[0002]

2. Description of the Related Art Conventionally, manure work is used for management work such as topdressing work in paddy fields after transplanting or sowing (direct sowing), chemical spraying work such as control work and herbicide spraying work, and grooving work for drainage. In many cases, it takes a lot of labor and time, and mechanization is strongly desired. Most of paddy field work by agricultural tractors is tilling work and scraping work, and in this scraping work, so-called high lag tires with high and wide lugs and wheels equipped with a thrust-up strike on the outside of the tire wheels are used. in use.

[0003]

However, since all of these paddy wheels have a large width, they can be used without problems in a paddy field before planting or before sowing that does not cause damage due to trampling of rice plants. However, it cannot be used in the management work after planting or sowing as described above. Moreover, it is expected that it will be difficult to sufficiently secure the propulsive force, the holding function of the vehicle body, and the like even if a narrow tire is mounted.

The present invention has been made by paying attention to such an actual situation, and it is possible to mount it on a traveling vehicle body and easily enter a paddy field in a growing season to perform various management work accurately. An object of the present invention is to provide a wheel with little vibration when traveling on the road.

[0005]

According to a first characteristic configuration of the present invention, the wheel body has a submerged portion in the field and a portion exposed from the field scene as a whole about 1/3 to 1 between the rice plant rows. It is configured as a sheet metal hollow body having a horizontal width of / 2 and a flat side surface, and a large number of chevron-shaped lugs formed to have a width substantially equal to the wheel lateral width are provided on the outer periphery of the wheel body, and further, between the lugs. An auxiliary plate for suppressing running vibration, which is slightly lower than the protruding height of the chevron-shaped lug, is provided in the middle in the lateral width direction of the above.

The second characteristic configuration of the present invention is that the wheel body has a horizontal width of about 1/3 to 1/2 between rice plant rows in the subsidence portion in the field and the portion exposed from the field scene. Along with this, it is configured as a sheet metal hollow body having a flat side surface, and a large number of chevron-shaped lugs having a width substantially equal to the wheel lateral width are provided on the outer periphery of the wheel body. An auxiliary ring, which has a diameter slightly smaller than the outer diameter of the tip, is provided so as to suppress traveling vibrations.

[0007]

According to the first characteristic configuration of the present invention, since the width of the wheel is as small as about 1/3 to 1/2 between the rice stock rows, even if there is some meandering, it depends on the trampling of the rice stock. No damage,
In addition to being able to easily move between rows, the number of rice stocks to be trampled when changing directions at the edge of the ridge is also extremely small. In addition, since a part of the outer peripheral part of the hollow wheel with a constant width only sinks in the field with a constant width,
It doesn't lift the soil and drop it to the side like a paddy wheel with a wide propulsion lug attached to a wheel made of a small diameter pipe. Further, since an auxiliary plate for suppressing traveling vibration, which is slightly lower than the lug, is provided between the lugs, propulsive force due to the bite of the mountain-shaped rug in the field can be exerted, and vibration during traveling on the road can be suppressed.

According to the second characterizing feature of the present invention, in a soft field, when it is desired to exert the propulsive force by biting the chevron-shaped rug, the auxiliary ring can be detached and mounted on the road. Vibration can be suppressed. Moreover, since it is ring-shaped, it is easier to mount it on the wheel as compared with a structure in which an auxiliary plate is provided between each lug.

[0009]

EFFECTS OF THE INVENTION By using the wheels according to the first characteristic configuration of the present invention, it is possible to carry out various kinds of management work with high efficiency without damaging or soiling the rice plant by putting the riding vehicle on the paddy field. Became. Since various management work can be performed with high efficiency in this way, it is effective in saving work time and cost. Moreover, there is an advantage that there is little vibration when traveling on the road.

By using the wheel according to the second characteristic configuration of the present invention, the auxiliary ring can be removed when the propulsive force due to the bite of the chevron rug is to be surely exerted in a soft field, and the working condition can be removed. You can respond quickly according to. Also, it is easy to mount on the wheels.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a three-point link mechanism is provided at the rear of a four-wheel drive type agricultural tractor 3 including a drive type rear wheel 1 which is a non-steering wheel and a drive type front wheel 2 which is a steering wheel. A fertilizer spraying device 5, which is an example of a management work device, is connected via 4 to perform additional fertilization work in a paddy field.

The rear wheel 1 and the front wheel 2 are made of sheet metal and are constructed as follows. As shown in FIGS. 3 and 4, the rear wheel 1 is formed by connecting a wheel body 7 made of a hollow annular sheet metal to the axle connecting hub 6 by bolts, and the wheel body 7 itself has a flat side surface. A pair of left and right side plates 7a to be presented are connected by welding with an outer peripheral plate 7b and an inner peripheral plate 7c. Further, on the outer periphery of the wheel body 7, a large number (15 in the embodiment) of mountain-shaped lugs 8 formed by bending a plate material having the same width as the lateral width of the wheel body 7 are welded and projected at an equal pitch in the circumferential direction, Further, an auxiliary plate 9 made of an iron plate along the circumferential direction is welded and fixed between the lugs 8, 8 so as to fill the space between the lugs 8, 8, and the specifications of each part are set as follows, for example. Has been done. Wheel outer diameter D = 1540 mm Wheel body outer diameter d ₁ = 1200 mm Wheel body inner diameter d ₂ = 614 mm Wheel lateral width w = 90 mm [Standard rice stock row spacing 2
Approximately 1/3 of 7 to 30 cm] Rug height h = 170 mm

As shown in FIGS. 5 and 6, the front wheel 2 is also basically made of sheet metal having the same structure as the rear wheel 1, and the specifications of the respective parts are set as follows, for example. Wheel outer diameter D = 1050 mm wheel body outside diameter d ₁ = 810 mm wheel body inner diameter d ₂ = 310 mm wheel width w = 90 mm lug height h = 120 mm

When the paddy field management work is carried out by mounting the wheels having the above-mentioned configuration, the treads (the distance between the left and right wheels) of the rear wheels 1 and the front wheels 2 are set to be an integral multiple of the number of rice plant rows. Correspondingly adjust the settings and get into the paddy field. At this time, since the dimensional width of the side plate 7a in the wheel body 7 in the radial direction is about 290 mm for the rear wheel and about 250 mm for the front wheel, only a part of the wheel body 7 will sink into the paddy field. Lifting of the soil by the wheel body 7 itself hardly occurs.

[Other Embodiments] The present invention can also be implemented in the following modes. Wheel width w is about 1/3 to 1/2 (approx.
90-100 mm) is suitable. As shown in FIG. 7, the auxiliary plate 9 does not have to completely fill the space between the lugs 8, 8. As shown in FIGS. 9 and 10, a ring 10 made of an iron plate or a ring made of an iron plate divided into two or three in the circumferential direction is detachably connected to the lateral outer surface of the wheel body 7 by bolts, and the lug 8 is bitten. The ring 10 is removed in the weak paddy field where the propulsive force is small and the ring 10 is used when traveling on the road.
Attach to enable traveling with less vibration. In this case, running vibration can be further reduced by coating the ring with rubber. Further, the ring 10 may be made of a pipe, and further, the pipe ring may be covered with rubber. As shown in FIG. 11, the front wheel 2 may have a structure in which an elastic lug 12 in which an internally hollow rubber is baked and fixed to an iron plate 11 is attached to the outer periphery of the wheel body 7. The wheel of the present invention can be used not only for the agricultural tractor as described above, but also for the riding type rice transplanter without the seedling planting device.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of drawings]

[Fig.1] Overall side view of the agricultural tractor under paddy field management work

[Fig. 2] Overall rear view showing the state of entry into a paddy field

[Fig. 3] Side view of the rear wheel

FIG. 4 is a sectional view taken along line AA in FIG.

FIG. 5: Side view of front wheels

6 is a sectional view taken along line BB in FIG.

FIG. 7 is a side view of another embodiment.

FIG. 8 is a sectional view taken along the line CC in FIG.

FIG. 9 is a side view showing another embodiment.

FIG. 10 is a sectional view taken along line DD in FIG.

FIG. 11 is a side view showing another embodiment of front wheels.

[Explanation of symbols]

 7 Wheel body 8 Yamagata lug 9 Auxiliary plate 10 Auxiliary ring w Width

Claims (2)

[Claims] 1. The wheel body (7) has a flattened width (w) between a rice plant row and a subsidence portion exposed to the field and a portion exposed from the field scene as a whole. A large number of chevron-shaped lugs (8) each having the same width as the wheel lateral width (w) are provided on the outer periphery of the wheel body (7) so as to project from the hollow body made of sheet metal having side faces. Paddy field management work in which an auxiliary plate (9) for suppressing traveling vibration, which is slightly lower than the projecting height of the chevron lug (8), is provided in the middle in the lateral direction between (8) and (8) along the circumferential direction. Wheels. 2. The wheel body (7) has a flattened width (w) between the rice plant streak as a whole in the subsidence part in the field and the part exposed from the field scene. A large number of chevron-shaped lugs (8) having a width substantially equal to the wheel lateral width (w) are formed on the outer periphery of the wheel body (7) so as to project from the outer circumference of the wheel body (7). 7. The paddy field management work according to claim 1, wherein an auxiliary ring (10) having a diameter slightly smaller than the outer diameter of the tip of the chevron lug (8) is detachably provided on the outer surface of (7). Wheel.