JP2606418Y2 - Rubber lug wheels - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lug structure for a rubber lug wheel of an agricultural machine such as a management machine.

[0002]

2. Description of the Related Art Conventionally, in a management machine (mainly, a single wheel management machine), a configuration in which a rubber lug is provided around a wheel is known. Before that, iron lug wheels were used, which had good bite on the soil surface and excellent straightness, but had a poor running feeling when traveling on hard soil surfaces, and Traction and climbing power were insufficient. In order to make up for these drawbacks, conventionally, rubber having lugs projecting from the rim of the wheel has been baked to constitute a rubber lug wheel.

[0003]

[Problems to be solved by the invention] Rubber lug wheels are excellent in running feeling and climbing power on hard soil surface,
Compared to iron lug wheels, biting into the soil is worse, skidding occurs, and straightness is poor. For this reason, rugs are used to improve the bite into the soil,
On the other hand, digging too deep into the soil made it difficult to advance, leading to reduced traction. Therefore, a rubber lug wheel capable of securing straightness to the soil to a certain depth to ensure straightness and improving traction is desired.

[0004]

The present invention uses the following means to solve the above problems. In the rubber rug wheel A of the agricultural machine, the vertical lug 1 is continuously projected over the entire circumference on the ridge line of the wheel,
On the side surface of the wheel, plate-shaped side lugs 2 projecting sideways slightly obliquely to the wheel radial direction are arranged in a staggered manner on the left and right of the vertical lug 1 in plan view. Top 2 of 2
a is lower than the vertical lug 1, and further, the center side of the rubber wheel
The rear part of the side lug 2 is placed on the circumferential side surface of
To the position of the side lug 2 immediately after it is projected on the opposite side.
The plate-shaped edge lugs 3 are arranged in a staggered manner in plan view.

[0005]

[Function] Because of the above configuration, the vertical lugs have good penetration into the soil and ensure straightness.
Since the side rugs and edge rugs are staggered,
The soil is good, the forward force is increased, the traction force is improved, and the edge lugs prevent the wheel from sinking to a certain depth or more.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; FIG. 1 is an overall side view of a one-wheel control device provided with a rubber lug wheel A of the present invention, FIG. 2 is a side view of the rubber lug wheel A, FIG. 3 is a partial plan view thereof, FIG. 4 is a front sectional view thereof, and FIG. FIG. 6 is a partial plan view of the wheel B, and FIG. 7 is a front sectional view of the same.

In FIG. 1, the one-wheel control device supports a wheel W in a cantilever manner on a wheel drive case 10, drives the wheel W by obtaining a driving force from an engine E, and pulls a rotary R mounted on the rear. Then, the operator performs the steering operation by holding the handle 11 and performs the agricultural work in the field. Therefore, in the field, the position of the rotary R and the like is not blurred.
It is desired that the wheels have good straightness and high traction.

In the one-wheel control device having such a configuration, the rubber lug wheel A or the rubber lug wheel B is used. First, the configuration of the rubber lug wheel A will be described with reference to FIGS. The rubber lug wheel A is configured by attaching a rubber lug to the wheel W. The wheel W is formed by projecting pipe spokes 8 radially around an axle boss 9 that supports an axle, and fixing a pipe rim 7 to an outer end thereof. Then, hard rubber having lugs projecting around the pipe rim 7 is baked. However, the method of forming and fixing the lugs is not limited.

The rubber lug portion of the rubber lug wheel A is as follows:
This will be described with reference to FIGS. First, rubber is extended on the radial extension of the wheel W to form the vertical lug 1 over the entire circumference. The pipe rim 7 has a plate-like portion 7a extending in the direction of the vertical lug 1 to reinforce the vertical lug 1. Then, plate-like side lugs 2 are staggered from the side surfaces of the rubber portion having the vertical lugs 1 as vertices. The side lug 2 has a U-shaped plate-like surface as viewed from the front as shown in FIG. 4 and is slightly inclined (about 10 °) with respect to the wheel radial direction as shown in FIG. ), The top end 2a is inclined forward in the rotation direction (the direction of the arrow in the figure) to improve the biting property to the soil. In addition, the outer end is pushed rearward from the inner end so as to be pushed rearward, and in combination with the staggered protruding shape, the soil is better drained when it is cut into the soil.

The top end 2a of the side lug 2 is located lower (toward the center) than the top end of the vertical lug 1.
The vertical lug 1 has a shape protruding in the wheel outer peripheral direction. As a result, the vertical lugs 1 are more likely to penetrate into the soil, and a rubber lug wheel A having high straightness without skidding can be obtained.

Further, a plate-like edge is provided on a side surface on the center side of the rubber wheel from a rear portion of the side lug 2 to a protruding position of the side lug 2 protruding immediately after the rear side. The part lug 3 is protruded from the side of the wheel. That is, the edge lugs 3 also protrude laterally in a staggered manner, and the edge lugs 3 protrude laterally in the tangential direction and the side lugs 2 obliquely in the radial direction. The edge lugs 3 project sideways,
By suppressing the bite of the wheel into the soil to a certain depth, preventing the sinking of the wheel, and being staggered, the soil is well drained, and the advancement in the soil is good, This leads to improved traction.

Next, the configuration of the rubber lug wheel B will be described with reference to FIGS. The rubber lug wheel B is also formed by baking hard rubber having lugs projecting on the pipe rim 7 of the wheel W having the same configuration as the rubber lug wheel A. Vertical lugs 5 are provided at regular intervals from the rubber wheel portion 4 covering the pipe rim 7 so as to protrude in the outer peripheral direction. The vertical lugs 5 improve the bite of the wheels into the soil, and provide wheels with high straightness without skidding.

A horizontal lug 6 protrudes between the vertical lugs 5.5. The horizontal lug 6 has a trapezoidal shape as viewed from the front as shown in FIG. 7, and the vertex 6 a of the trapezoid is located at the vertex of the vertical lug 5. The plate-like portions 6b extend on both sides, and in a side view, as shown in FIG. 5, the apex portion 6a is slightly inclined forward in the rotation direction (the direction of the arrow in the drawing) with respect to the wheel radial direction. (Approximately 10 °), and the outside end is pushed rearward to make it easier to drain. With the configuration of the vertical lug 6, a lateral grip force is obtained in the soil, and the amount of sinking of the wheel into the soil is reduced.

[0014]

As described above, according to the present invention, in the rubber lug wheel A of the agricultural machine, the vertical lug 1 is continuously projected all around the ridge line of the wheel, and the wheel radius is formed on the side surface of the wheel. The plate-shaped side lugs 2 projecting sideways slightly obliquely to the direction are arranged in a zigzag pattern on the left and right sides of the vertical lugs 1 in plan view, and the top end 2a of the side lugs 2 is Rug 1
Lower, and also the circumferential side of the center side of the rubber wheel
From the rear position of the side lug 2 to the opposite side.
Since the plate-shaped edge lugs 3 are arranged in a staggered manner in a plan view until the position of the side lugs 2 immediately after being placed,
The following effects are obtained. That is, since the vertical lugs 1 are continuously projected over the entire circumference of the ridge line of the wheel, the wheel can easily bite into the soil, and the skid can be eliminated to obtain a highly straight-ahead wheel. . Further, on the side surface of the wheel, plate-like side lugs 2 projecting sideways slightly obliquely to the wheel radial direction are arranged in a zigzag manner on the left and right sides of the vertical lug 1 in plan view. The top end 2a of the lug 2 is lower than the vertical lug 1 and the center of the rubber wheel.
On the side surface in the circumferential direction, the rear part of the side lug 2 is placed.
To the position of the side lug 2 immediately after it is projected on the opposite side.
In between, the plate-shaped edge lugs 3 are arranged in a staggered manner in plan view, so that the rubber lug wheel A does not sink below a certain level in the soil, and the forward force is high even in the soil, Rubber rug wheels with high traction can be obtained, contributing to increased efficiency in agricultural work.

[Brief description of the drawings]

FIG. 1 is an overall side view of a one-wheel control device provided with a rubber lug wheel A of the present invention.

FIG. 2 is a side view of a rubber lug wheel A.

FIG. 3 is a partial plan view of the same.

FIG. 4 is a front sectional view of the same.

FIG. 5 is a side view of a rubber lug wheel B.

FIG. 6 is a partial plan view of the same.

FIG. 7 is a front sectional view of the same.

[Explanation of symbols]

 AB rubber lug wheel 1 vertical lug 2 side lug 3 edge lug 4 rubber wheel 5 vertical lug 6 horizontal lug

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60B 15/00-15/26 B60C 11/11

Claims (1)

(57) [Scope of request for utility model registration] 1. In a rubber lug wheel A of an agricultural machine, a vertical lug 1 is continuously projected on the ridge line of the wheel over the entire circumference, and a side surface of the wheel is slightly oblique to the wheel radial direction. The plate-shaped side lugs 2 projecting in the direction are arranged in a zigzag manner on the left and right sides of the vertical lug 1 in a plan view, and the top end 2a of the side lug 2 is lower than the vertical lug 1 ; car
On the circumferential side on the center side of the ring, after said lateral lug 2
Side lug 2 immediately protruding from the part position to the opposite side
2. A rubber lug wheel characterized in that the plate-shaped edge lugs 3 are arranged in a staggered manner in a plan view up to the position shown in FIG.