JPS581127Y2 - Tauekiyo Syarin - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to wheels for rice transplanters.

Recently, it has been proposed to use elastic tires such as rubber tires as wheels in order to run a rice transplanter on a road surface.

However, compared to iron wheels, these elastic tires have the disadvantage that they tend to skid due to the unevenness of the plowing platform during rice planting work, lack straight-line performance, and are highly resistant to mud and have poor workability.

The purpose of the present invention is to eliminate such drawbacks, and the purpose of the present invention is to provide a large number of wide lugs arranged around the outer circumference of an elastic tire, and a taper that is higher than the lugs in the middle of the lugs. By providing a tapered support protrusion, the tapered support protrusion can be easily and reliably bitten into the tiller, thereby preventing the elastic tires from skidding and maintaining straightness. This is what we provide.

Another object of the present invention is that the thickness of the wide lug is gradually thinned toward the tip so that its cross section when viewed from the side is ladder-shaped, and the supporting protrusion is tapered. Furthermore, since it is possible to prevent mud from adhering to the support protrusions, it is possible to provide a rice transplanter wheel that can maintain good workability.

That is, the present invention has an elastic tire fitted and supported on the rim of the wheel body, and the thickness of the outer periphery of the tire is gradually thinned toward the tip, so that the cross section seen from the side is ladder-shaped, and the width of the tire is smaller than the width of the tire. Also, a large number of wide lugs are integrally protruded in the lateral direction and are arranged at equal intervals, and a tapered support protrusion that is higher than the lugs is integrally provided in the intermediate part between the lugs. This paper focuses on the structure of wheels for rice transplanters.

Next, the present invention will be explained according to the illustrated embodiments. 1 is a wheel body, which is a boss part that is detachably supported on the wheel shaft of a rice transplanter, and a rim that is attached to the boss part via a radial arm. It consists of

A tire 2 is fitted and supported on the rim of the wheel body 1, and is made of an elastic material such as rubber or synthetic resin.

Reference numeral 3 denotes lugs, which are arranged in large numbers at constant intervals around the outer circumference of the tire 2 and are necessary for driving the wheels.

As shown in FIG. 4, the lugs 3 are provided with a wider width in the lateral direction than the width of the tire 2, and can be provided with an appropriate inclination angle like the lugs on iron wheels.

In addition, the thickness of the wide lug 3 is gradually thinned toward the tip, and its cross-sectional shape when viewed from the side is shaped like a ladder as shown in Figure 1, so that the lug 3 can resist mud from adhering to it. It can be prevented.

Furthermore, as shown in FIG. 3, if the planar shape of the lug 3 is diamond-shaped, it can be used commonly for left and right wheels.

Reference numeral 4 denotes a support protrusion, which is integrally provided to protrude from the intermediate portion between the lugs 3 of the tire 2, and is formed to protrude higher than the lugs 3.

Since the support protrusion 4 is formed into a tapered shape such as a conical shape or a pyramidal shape, the support protrusion 4 can easily and reliably bite into the tiller, preventing the wheels from skidding against the tiller and improving straight running performance. This is effective because it allows the rice planting work to be carried out effectively and the area in contact with the road surface can be reduced.

The present invention is constructed as described above, and since the elastic tire 2 is provided on the outside of the wheel body 1, it has the practical benefit of improving the road running of this type of multilayer work machine. be able to.

Further, in the present invention, since the tapered support protrusion 4 is provided at the intermediate portion between the lugs 3, the support protrusion 4 can easily and reliably bite into the tiller. Since it is possible to prevent the wheel body 1 from skidding due to unevenness, the straightness of the wheel can be maintained and rice transplanting work can be carried out effectively.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a sectional view showing how the tire is installed, Fig. 3 is a plan view of the lug, and Fig. 4 is a sectional view of the lug. FIG. 5 is a plan view of the support protrusion, and FIG. 6 is a sectional view of the support protrusion. The symbols in the figure are as follows: 01 is the wheel body, 2 is the tire, 3 is the lug, and 4 is the support protrusion.

Claims (1)

[Scope of utility model registration request] An elastic tire is fitted and supported on the rim of the wheel body, and the thickness of the outer periphery of the tire is gradually thinned toward the tip, so that the cross section seen from the side is ladder-shaped and wider in the lateral direction than the width of the tire. A rice transplanter characterized in that a large number of integrally protruding lugs are arranged at equal intervals, and a tapered support protrusion that is higher than the lugs is integrally protruded in the intermediate part between the lugs. Wheel.