JPH0971101A - Riding paddy work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent front wheels from being dropped into a culvert to hinder the steering work by fitting auxiliary wheels on the lateral outside of the front wheels. SOLUTION: Front wheels 6 and rear wheels are arranged astride four seedling planting projected lines, i.e., astride four columns, and auxiliary wheels 16, 17 can be fitted at the lateral outside sections of the front wheels 6 and the rear wheels at the seedling planting work in an ill-drained paddy. The auxiliary wheels 16, 17 are slightly smaller in diameter than the front wheels 6 and the rear wheels respectively, and they are fitted to the front wheels 6 and the rear wheels astride the seedling planting projected lines near the front and rear wheels, i.e., they are fitted to the front wheels 6 and the rear wheels astride six columns. The front wheels 6 can be prevented from being dropped into a culvert to hinder the steering work even if the front wheels 6 pass on the culvert.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type rice transplanter equipped with a seedling planting device at the rear portion of a traveling machine body having front and rear wheels, or a riding type direct seeding machine equipped with a direct seeding machine at the rear portion of the traveling machine body. The present invention relates to riding type paddy working machines such as machines.

[0002]

2. Description of the Related Art Generally, a riding type paddy working machine is a rear wheel drive type and is configured as a front wheel steering type, and the driving rear wheel is more prone to propulsive force than the front wheel. It has a large diameter and a wide width.

[0003]

Generally, in a paddy field or a wet field where the field is soft, auxiliary wheels are attached to the lateral outer side of the rear wheel in order to suppress the sinking of the machine body. In general, on the cultivator of the rice field, a plurality of culverts having a width of about 15 cm are formed to improve drainage when draining all the water of the rice field and performing mid-drying work. In other words, at the stage of growing rice, once drain all the water from the rice field,
The work will be done in the mid-drying, but in order to improve the water handling when doing the mid-drying work, a groove is previously dug in the cultivator, and pebbles such as gravel are spread in the groove to improve drainage. A culvert is formed. When planting seedlings, the front and rear wheels may be located on the underdrain, in which case,
Since the rear wheels are equipped with auxiliary wheels even if they are located on the underdrain, the auxiliary wheels located on the lateral sides of the underdrain will prevent the rear wheels from falling into the underdrain, but the front wheels will remain the same. When the front wheels fall into the underdrain, there is an inconvenience that the steering operation of the front wheels becomes difficult to perform.
An object of the present invention is to prevent the steering wheel from becoming difficult to be operated by falling into the underdrain even when the front wheels pass over the underdrain.

[0004]

The present invention according to claim 1 resides in that auxiliary wheels are attached to the lateral outer side portions of the front wheels. [Operation] By attaching auxiliary wheels to the lateral outside of the front wheels,
Even if the front wheels are located on the underdrain, the front wheel auxiliary wheels located on the lateral sides of the underdrain restrain the front wheels from falling into the underdrain, and the steering operation of the front wheels becomes possible. [Effect] As described above, by mounting the auxiliary wheels on the front wheels, it is possible to prevent the front wheels from falling into the underdrain, and to perform seedling planting work well.

According to a second aspect of the present invention, the auxiliary wheel is
The point is that it is installed with a space that straddles the planned seedling planting line on the lateral side of the front wheel. [Operation] Since the auxiliary wheels are attached to the front wheels so as to straddle the adjacent planned line for planting seedlings, the front wheels need to be mounted so that they run in the same line as the front wheels. Seedlings will not be planted on the mud surface immediately on the side that has been damaged by auxiliary wheels. [Effect] As described above, by mounting the auxiliary wheel on the front wheel in a state of straddling the adjacent planned seedling planting line, the seedling can be satisfactorily planted on the mud surface after the wheel has passed.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below for a riding type rice transplanter.

FIG. 1 shows a rear-mounting type rice transplanter equipped with an 8-row seedling planting device 2 on the rear portion of a traveling body 1, which is equipped with an engine 3, a steering wheel 4, a driver's seat 5, and front wheel steering. At the rear of the traveling machine body 1 in the form of front-rear wheels 6, 7 type, the seedling planting device 2 with the fertilizer application device 10 for 8-row planting is provided via the link mechanism 9 which is vertically driven by the hydraulic cylinder 8. It is connected.

The seedling planting device 2 comprises a planting mission case 11, a planting transmission case 12, a laterally reciprocating seedling stand 13, a rotary seedling planting mechanism 14 arranged at intervals of 30 cm in the lateral direction of the machine, The fertilizer application device 10 is provided with a leveling float 15 for leveling the surface of the planting mud, and the fertilizer application device 10 provided at the rear of the seedling planting device 2 is adapted to apply fertilizer to the vicinity of the lateral side of the planted seedlings.

As shown in FIGS. 2 and 3, the front wheel 6 is
The rear wheel 7 is composed of a rubber wheel having a protrusion 6a that bites into the cultivator on the outer peripheral surface, and the rear wheel 7 has a protrusion 7a that digs into the cultivator on the outer peripheral surface and a wide lug 7b that protrudes in the lateral direction of the machine body on the side surface. It is composed of rubber wheels.

As shown in FIG. 5, the front wheel 6 and the rear wheel 7 are
Is placed across four lines of the planned seedling planting line, that is, arranged over the four lines, and auxiliary wheels 16 and 17 are attached to the lateral outer sides of the front wheels 6 and the rear wheels 7 during seedling planting work in a wetland. Is able to. As shown in FIGS. 2 to 5, auxiliary wheels 16 and 17 for the front wheels 6 and the rear wheels 7 are provided.
Are slightly smaller in diameter than the front wheels 6 and the rear wheels 7, respectively.
Also, it is attached to the rear wheel 7 so as to straddle the planned seedling planting line a near the main wheels 6 and 7. That is, the front wheel 6
And, it is attached to the rear wheel 7 with a distance W of about 30 cm so as to straddle six threads.

The auxiliary wheel 16 of the front wheel 6 is the spoke 1
6b is formed to be bent in the axial direction, and the rim 16c is positioned laterally outward of the machine body with respect to the hub 16a. The hub 16a of the auxiliary wheel 16 is attached to the front wheel 6
Is fixedly connected to the hub 6b via bolts 18.
Similarly to the auxiliary wheels for the front wheels, the auxiliary wheels 17 for the rear wheels 7 also have spokes 17b formed to be bent in the axial direction, and a pipe-shaped rim embedded in a rubber tire with respect to the hub 17a has a lateral outer side of the machine body. It is located in the direction.
The hub 17a of the auxiliary wheel 17 is fixedly connected to the hub 7c of the rear wheel 7 via a bolt 19.

[Other Embodiments] When attaching the auxiliary wheels to the front wheels and the rear wheels in a state of straddling the planned seedling planting line, the spokes of the auxiliary wheels are bent and formed in the axial direction, and the hub of the auxiliary wheels is mainly formed. Although it was attached to the wheel hub, when attaching auxiliary wheels to the front wheels and rear wheels across the planned seedling planting line, extension axles were attached to the front and rear wheel axles, respectively. An auxiliary wheel having straight tubular spokes that are not bent in the axial direction may be attached to the axle.

Further, in the above embodiment, the auxiliary wheels are attached to the front wheel disposed approximately in the middle of the planned seedling planting line at intervals of about 30 cm. Approximately 10c of auxiliary wheels to the front wheel
They may be mounted at intervals of m and positioned so that they are located in the same striation, and if the front wheels are prevented from falling into the underdrain A, the distance may be within 10 cm to 30 cm.

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 riding rice transplanter

FIG. 2 is an exploded perspective view of front wheel auxiliary wheels

FIG. 3 is an exploded perspective view of a rear wheel auxiliary wheel

FIG. 4 is a schematic view showing a traveling contrast state of a platter and front wheels traveling on an underdrain.

FIG. 5 is a schematic plan view showing a traveling state of front auxiliary wheels.

[Explanation of symbols]

 6 Front wheels 16 Auxiliary wheels a Seedling planting line

Claims (2)

[Claims] 1. An auxiliary wheel (1) is provided on the lateral outer side of the front wheel (6).
6) A riding-type paddy work machine equipped with 6). 2. The riding-type paddy work machine according to claim 1, wherein the auxiliary wheels (16) are mounted so as to be spaced apart from the planned seedling planting line (a) on the lateral side of the front wheel.