JPH0810003Y2 - Wheel structure for single wheel management machine - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention is designed to be driven by a single wheel so that weeding and earth removal can be performed while running through the ridges formed between the vegetables grown by ridge making. The present invention relates to a wheel structure of a single wheel management machine configured.

(B) Conventional technology Conventionally, the technology related to the one-wheel management machine has been publicly known, and the technology related to spike wheels used in the one-wheel management machine has also been publicly known. .

(C) Problems to be solved by the invention However, in the conventional spike wheel, the lug projection 5 in the rear view which is fixed around the circular pipe rim 6 is the first.
As shown in Figure 16, at right angles to the direction of travel of the aircraft,
In addition, the rear-view-shaped portion of the lug projection 5 projects radially straight from the center of the axle boss 3.

FIG. 11 is a side view of a conventional spike wheel, FIG. 12 is a rear cross-sectional view, FIG. 13 is a plan view of the same, and FIG. 14 is a rear view of a conventional spike wheel in which stones K are held. The figure shows the rear view of the stone K in the soil when it is about to be held in the rear view, and Fig. 16 shows the stone K lifted by the lug projections 5 to lift the engine K and the wheel drive case 11.
It is a top view of the state where it was made to engage with.

In a field with many stones K, the rear view-like portion easily holds the stones K, and the stones K in this held state
When the wheel is swung upwards, an engagement state is generated between the engine frame 14 and the wheel drive case 11, which stops the rotation of the spike wheel, stalls, or disconnects the chain in the wheel drive case 11. There was a problem that it did.

The present invention prevents the stone K from being hugged in this rear view portion, and even if it is hugged,
The engagement between the engine frame 14 and the wheel drive case 11 is reduced as much as possible.

(D) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

In a rear view of a spike wheel which is driven by a cantilevered axle 10 protruding from a wheel drive case 11 of a one-wheel management machine and which is located approximately at the left-right center of the machine body, a lug projection 5 protruding outward from a pipe rim 6 of the spike wheel. The rear-view-like lug projection 5 has a receding angle n rearward in the rotational direction,
The inclination angle m is provided with the wheel drive case 11 side as the rear side.

(E) Embodiment The problems to be solved and the means for solving the present invention are as described above. Next, the structure of the embodiment shown in the accompanying drawings will be described.

The overall configuration of the single wheel management machine will be described with reference to FIGS. 1 and 2.

The engine E is mounted on the engine frame 14, and power is transmitted from the engine E to the wheel drive case 11 via a belt. The engine frame 14, the engine E, and the vehicle body are arranged at the left and right center positions, the wheel drive case 11 is attached to the side of the engine frame 14, and the cantilevered axle 10 protrudes from the wheel drive case 11 toward the machine body center. , One spike wheel is attached to the center of the fuselage.

In addition, a cultivating part 12 is attached to the rear end of the engine frame 14,
A resistance rod 13 is supported on the rear part of the cultivating part 12.

A handle 15 is provided so as to project rearward and upward by the rear portion of the engine frame 14.

 This will be described with reference to FIGS. 3, 4, and 5.

The spike wheel is a portion of the axle boss 3 fitted to the cantilever axle 10 protruding from the wheel drive case 11, four pipe spokes 1 radially protruding from the axle boss 3, and a fixed portion around the pipe spoke 1. The present invention relates to the structure of the rear-view-shaped lug projection 5 and the rear-view-shaped lug projection 5 protruding outward from the pipe-rim 6.

Conventionally, as described above, the lug protrusion 5 in the rear view is
It was fixed in a direction perpendicular to the direction of travel of the aircraft.

Also, of the lug protrusions 5, the left and right protrusions 5a that protrude outwardly.
Like the pipe spoke 1, 5b was radially projected along a line extending outward from the center of the machine body.

However, in this case, when the lug protrusion 5 holds the stone K, if it is lifted up, it will completely interfere with the engine frame 14 and the wheel drive case 11, the stone K cannot escape, and the stone K will be crushed. Or
The only reason is that the lug protrusion 5 is bent, the chain of the wheel drive case 11 is broken, or the engine E is stopped.

In this way, the present invention is such that the held engine frame 14 has spike wheels, the engine frame 14 and the wheel drive case.
In order to make it easier for the stone K to escape when it interferes with the wheel drive wheel 11, the wheel drive case 11 in plan view as shown in FIG.
An inclination angle m with the side as the rear is provided.

Further, the projections 5a and 5b are also provided with a receding angle n rearward in the rotational direction in the side view of FIG.

By providing the receding angle n to the rear in the rotational direction, the tips of the protrusions 5a and 5b are configured to be positioned a distance t behind the base of the lug protrusion 5 as shown in FIG. is there.

With this configuration, as shown in FIG.
The stone K held by the lug protrusion 5 is the engine frame 14
When it is held between the wheel drive case 11 and the wheel drive case 11, there is an inclination angle m with the wheel drive case 11 side as the rear, so a component force in the direction of the wheel drive case 11 is received. You can escape from the state.

Further, the stones K held between the protrusions 5a and 5b and the wheel drive case 11 also get a component force to escape outward due to the backward swept-back angle n of the tip end, and gradually come off.

Next, the embodiments shown in FIGS. 8, 9, and 10 are the same in that the lug projections 5 are attached to the pipe rim 6 in such a manner that the wheel drive case 11 side is provided with a rearward inclination angle m. Also, the same is true that the projection 5a is provided with a receding angle n backward in the rotational direction, but the projection 5b on the opposite side is the same.
Is provided with an inclination angle n to the front in the rotation direction.

This is because the wheel drive case 11 is not provided on the side of the protrusion 5b, so that an interference state is unlikely to occur, and by providing the forward inclination angle n in this way, the spike wheel can be replaced between the left and right. Therefore, when only one of the lug projections 5 is unevenly worn, the mounting positions of the spike wheels can be reversed left and right.

(F) Effect of the Invention Since the present invention is configured as described above, it has the following effects.

First, since the inclination angle m with the wheel drive case 11 side as the rear is provided at the mounting position of the lug protrusion 5 to the pipe rim 6, the stone K held by the lug protrusion 5 in the rear view is lifted upward. Engine frame
When it interferes with 14, it receives the component force in the escaping direction gradually, so that the stone K can be escaped before the engine E is stopped or the wheel drive case 11 is destroyed. .

Secondly, in the case where there is the stone roller K sandwiched between the protrusion 5a and the wheel drive case 11, by providing the backward angle n backward in the rotational direction in the protrusions 5a and 5b of the lug protrusion 5, Since the outward component force acts on the stone K,
The stone force K can be removed by this component force, and the engine can be stopped and the wheel drive case 11 can be prevented from being destroyed.

[Brief description of drawings]

1 is an overall side view of a single wheel management machine, FIG. 2 is a plan view of the same, FIG. 3 is a side view of a spike wheel of the present invention, FIG. 4 is a rear cross-sectional view of the same, and FIG. 5 is a rear view. FIG. 6 is a plan view of the lug projection 5, FIG. 6 is a rear view of the lug projection 5 in a state in which the stone K held by the lug projection 5 is released, FIG. 7 is a plan view of the same, and FIG. 8 shows the projections 5a and 5b in different directions. 9 is a rear view, FIG. 10 is a plan view of the same, FIG. 11 is a side view of a conventional spike wheel, FIG. 12 is a rear sectional view, and FIG. The same figure is a plan view, FIG. 14 is a rear view of a conventional spike wheel in which stones K are held, and FIG. 15 is a rear view in which stone K in soil is about to be held in a rear view. Fig. 16 is a plan view showing a state where the stone roller K is lifted by the lug protrusion 5 and engaged with the engine frame 14 and the wheel drive case 11. is there. 1 …… Pipe spoke 2 …… Spoke flat plate 3 …… Axle boss 4 …… Rubber wheel part 5 …… Lug protrusion 5a, 5b …… Protrusion m …… Inclination angle with the wheel drive case 11 side as the rear n …… Rotation Direction backward sweep angle

Claims (1)

[Scope of utility model registration request] 1. A lug that is driven by a cantilevered axle 10 projecting from a wheel drive case 11 of a one-wheel management machine and that is located at a substantially lateral center of the machine body and that projects outward from a pipe rim 6 of the spike wheel. One wheel management, characterized in that the projection 5 has a rear view shape, and the rear view lug projection 5 has a receding angle n rearward in the rotational direction and an inclination angle m with the wheel drive case 11 side facing rearward. Wheel structure for machine.