JP2000004617A - Wheel cap for front wheel in sulky rice plant seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid seedlings to be transplanted from being pushed over by preventing mud from sticking to wheel caps set to the front wheels of a sulky rice plant seedling transplanter. SOLUTION: In a sulky rice plant seedling transplanter in which a transplant working unit is set to the rear of tractor having the front wheels and the rear wheels and the front wheels are steered with a handle, a boss 13 and a rim 14 having a tire 16 fitted thereto are connected with a plurality of spokes 15 in the front wheels, and wheel caps 17 are attached to the outsides of the front wheels to cover the spaces A between individual spokes. In addition, a plurality of air holes 23 are bored on the wheel caps 17 so that the holes may oppose to the spaces A to prevent mud from sticking thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front wheel cap of a riding type rice transplanter, and more particularly, to forming a plurality of ventilation holes in a wheel cap to prevent mud from adhering to the wheel cap. It was made.

[0002]

2. Description of the Related Art Conventionally, spoke-type wheels are generally used for the front wheels of a riding type rice transplanter in order to reduce the weight of the fuselage. As it gets into the spokes and rims and attaches to the spokes and rims, it becomes a clump of earth with the rotation of the front wheel and falls on the rice field and hinders planting, so attach a wheel cap outside the front wheel and remove mud into the front wheel. A device for preventing entry is known.

[0003]

By the way, when the above-mentioned wheel cap is mounted, there is almost no problem when the soil is sandy, but when the clay is clay, the front wheel 2 runs as shown in FIG. Viscous mud D near the rotating K
Adheres to the outer peripheral surface of the wheel cap, and the adhered mud D moves sequentially toward the center of the wheel cap 17 as the front wheel 2 rotates, and a large mud pile protruding laterally with the center as the vertex. Is formed (height: about 10 to 15 cm), and there is a problem that an adjacent planted seedling is pushed down at the top of the mud D during the planting operation.

[0004]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention mounts a planting work section 8 behind a traveling body 1 having a front wheel 2 and a rear wheel 3 and operates a driving handle. In the riding type rice transplanter that steers the front wheel 2 with the rim 6, the rim 1 having the boss 13 and the tire 16
4 are connected to each other by a plurality of spokes 15, and a wheel cap 17 for covering a space A between the spokes 15 is mounted outside the front wheel 2, and mud is attached to the wheel cap 17 so as to face the space A. A plurality of vent holes 23 for preventing adhesion are formed.

[0005]

[Function] During running, the wheel cap 1 is set near the K
When the mud D adhering to the wheel 7 moves toward the center of the wheel cap 17 with the rotation of the front wheel 2, the wheel cap 17 is provided with a plurality of ventilation holes 23 and the mud D
The adhering area of the mud D is reduced and the mud D is attached to the adhering surface of the mud D by the ventilation holes 23. As the mud D moves toward the center, its adhering force is reduced and the mud D is dropped onto the rice paddy surface. Adhesion of mud to the wheel cap 17 is small, and the planted seedlings adjacent to the wheel cap 17 are not pushed down.

[0006]

FIG. 2 is an overall side view of a riding type rice transplanter showing an embodiment of the present invention. A traveling machine body 1 of the riding type rice transplanter is supported by front wheels 2 and rear wheels 3 and travels. A driver's seat 4 is mounted on the rear upper portion of the body 1, and an operation panel 5 is provided in front of the driver's seat 4. A driving handle 6 is provided on the upper portion of the operation panel 5. At the rear of the traveling machine body 1, a planting work section 8 is mounted via a link mechanism 7 so as to be able to move up and down. The planting work section 8 includes a seedling table 9 inclined forward and upward, and a planter 10 for planting the seedlings held on the seedling table 9.
A float 11 for leveling the planted rice field is provided below the seedling mounting table 9.

The front wheel 2 has a boss 13 and a rim 1
4 is connected by a plurality of spokes 15 to form a spoke-type wheel, and a rim portion 14 is covered with a solid tire 16 having a lug 16a on its peripheral surface. In the embodiment of the present invention, three spokes 15 are provided at equal intervals. With the front wheel 2 having such a configuration, the boss 13 is
8 and inserted into the axle 12 through the boss 13.
Is mounted on the axle 12 by inserting the mounting pin 19 through the shaft. A wheel cap 1 is provided outside the front wheel 2.
7 is detachably mounted.

Hereinafter, the wheel cap 17 will be described with reference to FIGS. 1 and 3. As shown in the sectional view of FIG. 3, the wheel cap 17 has a plate-like portion 17b and a plate-like portion formed on the outer peripheral portion thereof. 17c are integrally formed in a stepped state, and the strength of the wheel cap 17 is ensured by the stepped configuration.

A plurality of ventilation holes 23 are formed in the flat plate portion 17b so as to face the space A formed between the spokes 15 of the front wheel 2, and the ventilation holes 23 are formed in a straight line. It is disposed radially outward from the center of the wheel cap 17. The size of one vent hole 23 is about one-tenth of the entire space A formed in the front wheel 2, and the size of the hole occupied by all the vent holes 23 is It is less than half the size of the entire space A. In the second embodiment shown in FIG. 4, the vent hole 23 is formed to be curved along the rotation direction of the front wheel 2, and the hole of the vent hole 23 becomes larger toward the center of the wheel cap 17. In the third embodiment shown in FIG. 5, the vent hole 23 is provided only on the center side of the wheel cap 17 and is formed slightly larger, but the size of the hole occupied by all the vent holes 23 is large. The height indicates a case where the size is equal to or less than half the size of the entire space portion A, and may be appropriately selected and used depending on soil conditions for preventing adhesion. The arrangement method and the like are not limited to the embodiment.

Reference numeral 20 denotes a bulging portion 17 of the wheel cap 17.
The washer 21 fixed to the inner surface a is a substantially U-shaped engaging tool fixed to the inside of the flat plate-shaped portion 17b, and is engaged with the spoke 15 to perform the locking of the wheel cap 17 and the detent action. .

Thus, the wheel cap 17 is attached to the front wheel 2
When attaching to the axle, the engaging tool 21 is engaged with any of the spokes 15 and the washer 20 of the bulging portion 17a is abutted against the end surfaces of the axle 12 and the boss portion 13. The solid tire 16 is attached so that the outer peripheral portion of the flat plate portion 17c contacts the outer surface of the solid tire 16 in the attached state. Incidentally, the front wheel 2 shown as an embodiment of the present invention.
Is a solid tire 16, but it may be a front wheel with a pneumatic tire mounted on a rim.

[0012]

As described above, the present invention relates to a riding type rice transplanter in which the planting work section 8 is mounted behind the traveling body 1 having the front wheels 2 and the rear wheels 3 and the front steering wheel 2 is steered by the driving handle 6. The front wheel 2 is connected to the boss portion 13 and the rim portion 14 having the tire 16 by a plurality of spokes 15, and a wheel cap 17 that covers a space A between the spokes 15 is mounted outside the front wheel 2. And the space A
A plurality of ventilation holes 23 for preventing mud adhesion are formed in the wheel cap 17 in opposition to the front wheel 2 steered by the driving handle 6. Wheel cap 17 to be covered
Is provided to prevent the mud D from entering the spokes 15 from the outside of the machine body, so that the planting of the seedlings is not hindered. Even if the viscous mud D in the vicinity adheres to the wheel cap 17, when the mud D moves toward the center of the wheel cap 17 with the rotation of the front wheel 2, the mud D Is provided, the adhesion area of the mud D is reduced, and the ventilation surface acts on the adhered surface by the ventilation hole 23. Therefore, the adhesion of the mud D to the central portion side is reduced and the adhering force is reduced. Since it falls on the rice field, there is little adhesion of the mud D to the wheel cap, and it does not push down the adjacent planted seedlings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a wheel cap.

FIG. 2 is an overall side view of a rice transplanter to which the wheel cap of the present invention is attached.

FIG. 3 is a front sectional view showing a mounting state of a wheel cap.

FIG. 4 is an overall side view showing a second embodiment of the wheel cap.

FIG. 5 is an overall side view showing a third embodiment of the wheel cap.

FIG. 6 is an operation explanatory view of a conventional wheel cap.

[Explanation of symbols]

 2 Front Wheel 13 Boss 14 Rim 15 Spoke 17 Wheel Cap 17b, 17c Flat Plate 21 Engagement Tool 23 Vent

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor: Hide Yakura 667, Iya-cho, Oji-machi, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Within Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Inside Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Jin Komatsu 667 Iyacho, Iza-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane 1 F-term within Mitsubishi Agricultural Machinery Co., Ltd. 2B063 AA20 AB01 BA01 BA30

Claims (1)

[Claims] 1. A riding type rice transplanter in which a planting work section 8 is mounted behind a traveling machine body 1 having a front wheel 2 and a rear wheel 3, and a front handle 2 is steered by a driving handle 6. 13 and a rim portion 14 having a tire 16 are connected by a plurality of spokes 15, and each spoke 15 is provided outside the front wheel 2.
A wheel cap 17 for covering the interspace A, and a plurality of ventilation holes 23 formed in the wheel cap 17 in opposition to the space A to prevent muddy soil from adhering. Front wheel cap of the machine.