JP2000142004A - Front wheel of agricultural field planting vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To travel a vehicle well even on a muddy ground using a front wheel of a rear wheel-driving system agricultural field planting vehicle. SOLUTION: A wheel is used as a front wheel of a rear wheel-driving system field plating vehicle A. The front wheel is formed to a spoke wheel 4 by projecting a plurality of spokes 2 around a bearing portion and providing an outer wheel portion 3 around these spokes 2. The bearing portion adopts a bearing structure such as a ball bearing and the spokes 2 are constituted by 3-6 spokes. An interval of the adjacent spokes is widely formed. The outer wheel portion 3 does not adopt a hollow tire and adopts a ground-contact wheel 6 with recessed and projecting teeth on the outer periphery thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front wheel of an agricultural field planting vehicle used as a front wheel of a rear wheel drive type agricultural field planting vehicle.

[0002]

2. Description of the Related Art
As the front wheel of the rear-wheel drive agricultural field planting vehicle A, a general wheel having a hollow tire mounted on the outer periphery of the wheel is used.

[0003] The front wheels of this field planting vehicle have no problem when traveling on dry ground (soil), but when the field is muddy due to rain during field planting work in rainy weather, etc.
You may not be able to move on the muddy ground and cannot progress.

[0004] In view of the above situation, it is a technical object of the present invention to provide a front wheel of a rear-wheel-drive agricultural field planting vehicle that can travel extremely well on muddy ground.

[0005]

The gist of the present invention will be described with reference to the accompanying drawings.

A spoke 2 is used as a front wheel of a rear-wheel drive type field planting vehicle A. A plurality of spokes 2 are protruded around a bearing 1, and an outer ring 3 is provided around the plurality of spokes 2. The spokes 4 are used, the bearing 1 adopts a bearing structure of a ball bearing 5, the spokes 2 are provided with three to six, and the interval between adjacent spokes 2 is widened, and the outer race 3 is a hollow tire. The present invention relates to a front wheel used in an agricultural field planting vehicle, wherein the ground wheel 6 is provided with uneven teeth on the outer peripheral surface.

Each of the convex teeth 7 of the ground contact wheel 6 is formed in a flat plate shape having no lateral width, and each of the convex teeth 7 has lateral teeth 8 projecting laterally alternately left and right for each one. The present invention relates to a front wheel used for an agricultural field planting vehicle according to claim 1.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

When the product of the present invention is used as a front wheel of a rear-wheel drive type agricultural field planting vehicle A, the spoke wheel 4 rotates through the bearing 1 when the vehicle is moving forward or backward even if the ground is muddy, The grounding wheel 6 provided with the uneven teeth on the outer periphery of the part 3 advances so as to cut through the muddy ground.

At this time, the spokes 2 also rotate so as to cut the mud, and since the distance between the adjacent spokes 2 is wide, the rotational resistance caused by the contact of the mud attached to the spokes 2 with the mud on the ground is small. Therefore, in combination with the fact that the bearing portion 1 has a bearing structure employing the ball bearing 5, the spoke wheels 4 are more likely to rotate as the rear wheel is driven forward or backward by the driving force.

Therefore, the spoke wheels 4 rotate well even on muddy ground, and can proceed very well.

Further, if each convex tooth 7 of the ground contact wheel 6 is formed in a flat plate shape having no lateral width, and each of the convex teeth 7 is formed with lateral teeth 8 projecting laterally alternately left and right for each one. , The flat convex teeth 7 are easier to cut into mud on muddy ground,
Also, when the spoke wheel 4 rotates, the lateral teeth 8 of each convex tooth 7
Since the wheel rotates in such a way as to scratch the mud, the spoke wheel 4 is more easily rotated, and the vehicle can more smoothly travel on the muddy ground.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

This embodiment relates to a rear-wheel drive type field planting vehicle A.
And a spoke wheel 4 having a plurality of spokes 2 protruding around a bearing portion 1 and an outer ring portion 3 provided around the plurality of spokes 2.

The bearing unit 1 employs a bearing structure using a ball bearing 5 so that the rotation of the spoke wheel 4 can be performed extremely smoothly. Also, the drawing shows a case where the ball bearing 5 is simply inserted into the center boss 9 of the spoke wheel 4 and fixed by the bolt 10.

As shown in FIG. 2, the distance between adjacent spokes 2 is widened as shown in FIG. The number of the spokes 2 is preferably three to six, but the number of the spokes 2 is preferably four as in the present embodiment, both in terms of wheel strength and spacing between the spokes 2.

The outer ring portion 3 is not a hollow tire but a grounding wheel 6 provided with uneven teeth on the outer peripheral surface.

Each of the convex teeth 7 of the grounding wheel 6 is formed in a flat plate shape having no lateral width, and each of the convex teeth 7 is formed with lateral teeth 8 projecting laterally alternately left and right for each one. ing. That is, as shown in FIG. 2, each convex tooth 7 of this embodiment has a cross section T
It shows a case in which it is formed in a character shape.

Therefore, when the wheels of this embodiment are used as the front wheels of a rear-wheel drive type agricultural field planting vehicle A as shown in FIG. 1, even when the ground is muddy, the spokes can be used when moving forward or backward. The wheel 4 rotates via the bearing 1, and the ground wheel 6 provided with the uneven teeth on the outer periphery of the outer ring portion 3 advances so as to cut through the muddy ground.

Further, since each convex tooth 7 of the ground contact wheel 6 is formed in a flat plate shape having no lateral width, the flat convex tooth 7 can be more easily cut into the mud. Since the lateral teeth 8 protruding toward the right and left are alternately formed for each piece, the lateral teeth 8 of each of the convex teeth 7 rotate as if scraping mud when the spoke wheel 4 rotates. It is easy to rotate, and can proceed very well.

At this time, the spokes 2 also rotate so as to cut the mud, and since the interval between the adjacent spokes 2 is wide, the rotation resistance due to the contact between the mud attached to the spokes 2 and the mud on the ground is small. Therefore, in combination with the fact that the bearing portion 1 has a bearing structure employing the ball bearing 5, the spoke wheels 4 are more likely to rotate as the rear wheel is driven forward or backward by the driving force.

In the figure, reference numeral 11 denotes a rear wheel of a field planting vehicle A;
Reference numeral denotes a power transmission mechanism for transmitting a driving force from a power source to the rear wheels 11.

[0023]

Since the present invention is constructed as described above, when the product of the present invention is used as the front wheel of a rear-wheel drive type agricultural field planting vehicle, the spoke wheel can be used when moving forward or backward even when the ground is muddy. Will rotate through the bearings, and the grounding wheel provided with the uneven teeth on the outer periphery of the outer ring will advance so as to cut through the muddy ground, and at this time, the spokes will also rotate so as to cut the mud Because the distance between adjacent spokes is wide, there is little rotational resistance due to the contact of the mud on the spokes with the mud on the ground, and the bearing structure has a bearing structure that uses ball bearings. The wheels are driven forward by the driving force of the wheels, and the spoke wheels are easy to rotate as you move backwards, which makes it possible to proceed very well even on muddy ground. The front wheel.

According to the second aspect of the present invention, the flat convex teeth are more easily cut into mud on muddy ground, and the lateral teeth of each convex tooth scrape the mud when the spoke wheel is rotated. Because of the rotation, the spoke wheels are easier to rotate and provide a front wheel of an excellently constructed agricultural field planting vehicle that can better travel on muddy ground.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of the present embodiment.

FIG. 2 is a perspective view showing the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bearing part 2 Spoke 3 Outer ring part 4 Spoke wheel 5 Ball bearing 6 Grounding wheel 7 Convex tooth 8 Side tooth A Field planting vehicle

Claims (2)

[Claims] 1. A spoke wheel for use as a front wheel of a rear-wheel drive type field planting vehicle, wherein a plurality of spokes protrude around a bearing portion and an outer ring portion is provided around the plurality of spokes. The bearing portion adopts a bearing structure using a ball bearing, the spokes are provided with three to six, and the spacing between adjacent spokes is widened, and the outer ring portion is provided with uneven teeth on the outer peripheral surface without forming a hollow tire. Front wheels used in agricultural field planting vehicles, characterized in that they are grounded wheels. 2. The method according to claim 1, wherein each convex tooth of the ground contact wheel is formed in a flat plate shape having no lateral width, and each of the convex teeth has lateral teeth protruding laterally formed alternately on the left and right sides. A front wheel used for the agricultural field planting vehicle according to claim 1.