JPH0678002U - Rubber lug wheels - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to eliminate the weakness of straightness due to insufficient bite to soil in a rubber lug wheel constituted by coating a steel wheel with a rubber lug. [Structure] The rim portion of the iron wheel is replaced by an iron plate ring 3
Then, the rubber ring portion 1 is covered with the outer peripheral end portion 3a thereof being slightly exposed or slightly covered, and the lug 2 is provided on the side surface of the rubber ring portion 1 to form a rubber lug wheel.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a rubber lug wheel of an agricultural machine such as a management machine.

[0002]

[Prior art]

 Conventionally, it has been known that rubber lugs are provided around wheels in management machines (mainly one-wheel management machines). Before that, it used iron lug wheels, which had good bite on the soil surface and had excellent straightness, but when traveling on a hard soil surface, noise and vibration were severe. For example, the driving feeling was poor, and sinking to the soil was likely to occur, resulting in insufficient traction and climbing power. In addition, when loading onto a transport vehicle, slipping on the travel board caused problems with loading. In order to compensate for these drawbacks, the rubber lug wheels were constructed by baking rubber with lugs protruding from the wheel rim.

[0003]

[Problems to be solved by the device]

 Due to its elasticity, rubber lug wheels have excellent running feeling on hard soil surfaces, do not sink deep into the soil, have excellent traction force and climbing power, or do not slip, so they can be loaded onto a transport vehicle. Although it has the advantage that it is also convenient, it has a poorer bite on the soil than a steel lug wheel, and it skids and is inferior in straightness. The present invention was developed to correct the weakness of soil digging, which is a drawback of rubber lug wheels.

[0004]

[Means for Solving the Problems]

 The present invention uses the following means in order to solve the above problems. That is, in a rubber lug wheel in which a rim portion of an iron wheel of an agricultural machine is coated with hard rubber, the rim portion of the iron wheel is made of an iron plate ring, and the outer peripheral end of the ring is slightly exposed. Alternatively, the hard rubber is coated in a slightly covered state, and the lug is projected on the hard rubber on the side surface of the ring.

[0005]

[Action]

 Even if the rim portion of the iron wheel to which the rubber lug is attached is a plate ring and the rubber lug is covered, the outer peripheral end of the ring is exposed or slightly covered with rubber. Goes into the soil at an acute angle and improves bite, which improves straightness. On the other hand, the outer peripheral edge of the iron ring is exposed and slightly, and most of it is covered with the hard rubber of the rubber lug, so that there is no adverse effect on the conventional iron wheel such as deterioration of the traveling feeling. It has been deterred.

[0006]

【Example】

 An embodiment of the configuration of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall side view of a single wheel management machine equipped with the rubber lug wheel W of the present invention, FIG. 2 is a side view of a rubber lug wheel W having a projecting outer peripheral end of a plate ring, and FIG. 3 is the same front view. FIG. 4 is a sectional view, FIG. 4 is a side view of a rubber lug wheel W having a configuration in which an outer peripheral end of a plate ring is covered, and FIG. 5 is a front sectional view of the same.

In FIG. 1, the single wheel management machine has a rubber lug wheel W supported on a wheel drive case 6 in a cantilever manner, receives a driving force from an engine E to drive the rubber lug wheel W, and is mounted at a rear side such as a rotary R. The operator carries out the steering operation by holding the handle 7 and pulling the farm to perform agricultural work in the field. Therefore, in a field, a wheel that has good straightness and high traction force is desired so that the position of the rotary R or the like does not shift.

The structure of the rubber lug wheel W of the present invention will be described. First, the structure of iron wheels will be described. As shown in FIG. 2, the iron wheel has pipe spokes 4 radially arranged around an axle boss 5 that axially supports an axle that is provided to protrude from the axle drive case 6 in FIG. 1, and the iron wheels are made of iron. The plate-shaped ring 3 is fixedly formed. Then, hard rubber having a lug protruding around the plate ring 3 is baked to form a rubber lug wheel.

Both side surfaces and the inner peripheral end side of the plate-shaped ring 3 are covered with the rubber ring portion 1, and the lugs 2 are projected on the side surface of the rubber ring portion 1 in a zigzag manner. . The lug 2 has a function of suppressing the sinking amount of the wheel to be constant when the wheel is digging into the soil, improving the soil drainage, and obtaining a grip force from the side of the wheel to enhance the traction force. ing.

The outer peripheral end 3a of the plate-shaped ring 3 is made to project a little more than the outer peripheral end 1a of the rubber ring portion 1 in the embodiments shown in FIGS. That is, by making the iron part project on the outer circumference of the wheel, the bite into the soil is improved and the straightness of the wheel is secured. Further, since the protruding width of the outer peripheral end 3a of the plate-shaped ring is small, the problems such as the bad running feeling of the conventional iron wheels do not appear so much.

On the other hand, in the embodiment shown in FIGS. 4 and 5, the outer peripheral end 3 a of the plate ring 3 is covered with the outer peripheral end 1 a of the rubber ring portion 1 so that the plate ring 3 is not exposed. I have to. However, the coating thickness of the outer peripheral end portion 1a is made extremely small, the outer peripheral portion of the rubber ring portion 1 is made to have hardness, and the outer peripheral end portion 3a of the iron plate ring 3 directly digs into the soil. It is possible to obtain the same effect as that by making it possible to ensure straightness. In addition, by covering the outer peripheral end portion with the rubber ring portion 1, the harmful effect that occurs in the conventional iron wheel does not occur.

In addition to the above, the outer peripheral end portion 3a of the plate-shaped ring 3 and the outer peripheral end portion 1a of the rubber ring portion 1 are made to coincide with each other, and an iron plate-shaped member is formed at the center of the outer peripheral surface of the rubber ring portion 1. Alternatively, the outer peripheral end 3a of the ring may be arranged.

[0013]

[Effect of device]

 The present invention has the following effects by being configured as described above. That is, by constructing the rubber wheel as claimed, the ability to bite into the soil, which was weak in the conventional rubber wheel, is improved, and the straightness is enhanced, so that the efficiency of agricultural work is improved, while the conventional iron wheel is used. Insufficient traction force and poor driving feeling will not occur.

[Brief description of drawings]

FIG. 1 is an overall side view of a single wheel management machine including a rubber lug wheel W of the present invention.

FIG. 2 is a side view of a rubber lug wheel W having a configuration in which an outer peripheral end portion of a plate ring is projected.

FIG. 3 is a front sectional view of the same.

FIG. 4 is a side view of a rubber lug wheel W having a configuration in which an outer peripheral end of a plate ring is covered.

FIG. 5 is a front sectional view of the same.

[Explanation of symbols]

 W rubber lug wheel 1 rubber ring portion 1a outer peripheral end portion 2 lug 3 plate ring 3a outer peripheral end portion

Claims (1)

[Scope of utility model registration request] 1. A rubber lug wheel in which a rim portion of a traveling wheel of an agricultural machine is coated with a rubber lug, the rim portion of the iron wheel is an iron plate ring, and an outer peripheral end portion of the ring is slightly exposed, or A rubber lug wheel characterized in that a rubber lug is covered in a slightly covered state, and the lug is projected on the side surface of the ring.