JPS6325104A - Wheel with tire - Google Patents

Abstract

PURPOSE:To eliminate a tube, prevent puncture, and facilitate maintenance by providing slits of a specified pattern on the external periphery of the cushioning ring rim for tire fitting in a wheel with a tire for a car and forming slide stop projections to be inserted into the slits on a tire internal periphery. CONSTITUTION:The constitution is such that a wheel 5 with a cushioning ring rim 4 for tire fitting is mounted to the drum fitted to an axle, and a tire 6 is secured to the drum. And slits 7 are formed on the peripilery of the cushioning ring rim 4 of the tire wheel 5 so that the tire wheel 5 may be smoothly deflected. on the other hand, slide stop projections 11 to be inserted into the slits 7 are formed on the internal peripheral surface of the tire 6, and while the wheel is secured with the tire 6, the projections 11 are fitted into the slits 7. This constitution allows the tire to be secured certainly, eliminates a tube, prevents the tire from puncturing, and in addition, eliminates air pressure check or the like for facilitating maintenance.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a wheel with a tire.

[Conventional technology]

Conventionally, for example, wheels with tires installed on automobiles,
It consists of a disc-shaped wheel with a rim for fitting the tire around the periphery of a drum attached to the axle, and a tire/tube or tubeless tire fitted to the rim of this wheel.The tube and tubeless tire are equipped with air valves. Air is sealed inside at the required pressure, and the elasticity of the compressed air cushions and absorbs shocks and shocks received from the road surface.

[Problem that the invention seeks to solve]

However, these conventional wheels with tires always require an air valve, and the internal air pressure must be checked and corrected on a daily basis.Furthermore, with tire/tube type wheels, there is a risk of punctures caused by nails, etc. There was a problem.

[Means for solving problems]

In order to solve the above-mentioned problems, this invention consists of a wheel in which a shock-absorbing annular rim for fitting a tire is provided on the periphery of a drum attached to an axle, and a tire to be fitted into the rim of this wheel. The rim is provided with slits in a desired pattern around the rim for smooth deflection, and the tire is provided with anti-slip protrusions on the inner peripheral surface that fit into the slits.

[Effect]

According to this invention, the shock-absorbing annular rim that bends due to external force plays the role of shock absorption, that is, the role of a tube, and even if a nail or the like pierces the tire, it will not collapse, and the tire will be able to maintain its inner circumferential surface. Since the protrusion is fitted into the slit of the rim and locked, it will not shift during rotation. Additionally, the cushioning performance of the rim can be selected depending on the size and shape of the slit.

〔Example〕

1 to 5 show a first embodiment of the invention. The tire-equipped wheel of this first embodiment includes a wheel 5, which is provided with a cushioning annular rim 4 for fitting the tire on the periphery of a disc-shaped drum 3 that is attached to an axle 1 with a plurality of bolts and nuts 2; The tire 6 is fitted onto the rim 4 of the tire 6.

The annular rim 4 has a thickness that gradually decreases from the base of the drum to the ridgeline, and has a plurality of narrow horizontal slits 7 around the ridgeline and one vertical slit 8 on the ridgeline. are provided to intersect with each other, thereby defining arcuate pieces 9 that face each other from the left and right. This arcuate piece 9 bends smoothly like a spring in response to a load, and its elasticity allows it to absorb shocks during running. Further, the outer dimensions of the rim 4 are formed to be somewhat larger than the inner dimensions of the tire 6.

Note that the thickness of the rim 4 and the width of the slit, that is, the size of the arcuate piece, etc. can be appropriately selected depending on the application.

The wheel 5 is made of a hard plastic molded product such as strong polyamide, and the drum 3 has bolts 2 of the axle 1.
A plurality of bolt holes 10 corresponding to the number of bolt holes 10 are drilled. The shape of the drum of the wheel 5 can be appropriately selected depending on the shape of the end of the axle to which it is to be mounted, and materials such as plastic, FRP, metal, etc. can be used as appropriate.

The tire 6 has horizontal striped protrusions 11 for non-slip purposes that fit into the horizontal slits 7 of the rim 4 on the curved inner circumferential surface, and a desired pattern on the flat contact surface 12 of the outer surface. Groove 13
is engraved, and when it is attached to the rim 4 of the wheel 5 while being stretched using a special attachment device, it sticks closely to the rim 4 of the wheel 5, and the protrusion 11
The tire fits into the slit 7 of the rim 4, so that the tire does not shift or fall off the wheel even when rotating at high speed.

6 and 7 show a second embodiment of the invention. The tire-equipped wheel of this second embodiment has horizontal H-shaped slits 14 arranged at equal pitches around the rim 4, and a horizontal slightly narrow H-shaped slit fitted into the slits 14 on the inner peripheral surface of the tire 6. The protrusions 15 are provided in a row.

In this second embodiment, an H-shaped protrusion 1 is provided in an H-shaped slit 14.
5 mesh with each other, so there is an advantage that displacement in the vertical and lateral directions can be completely prevented.
9 are interposed alternately, resulting in an increase in pressure resistance.

FIG. 8 shows a third embodiment of the invention. The tire-equipped wheel of this third embodiment is an applied example of the first embodiment, and reinforcing connecting portions 17 remain at both ends of the horizontal slit 16 provided in the rim 4. In this embodiment, the entire rim is formed by ring-shaped pieces 19, and these ring-shaped pieces 19 are connected by a connecting part 17, so that it has even greater load bearing capacity.

In each of the above embodiments, for example, even if the wheel is made of hard plastic, a slit with a desired pattern is provided around the rim, and the bow-shaped pieces 9 and ring-shaped pieces 19 are arranged side by side. It is easy to bend and exhibits the required elasticity, allowing it to function as a conventional cushioning tube.

When the tire-equipped wheel of the present invention is used, for example, in a car, when there are few passengers or luggage and the load is small, the thin tip of the rim slightly bends inward to support it,
When there are many passengers and cargo, and the load is large, the rim flexes a little from the tip to the middle to support the rim, and the elasticity of the sections cushions and absorbs the impact from the road surface while driving. Even if it gets stuck, there is no chance of a puncture because it does not use compressed air like conventional products.

In addition, this wheel with tires is suitable for various automobiles such as passenger cars, commercial vehicles, and bus trucks, as well as tractors, crane trucks,
It is used as wheels for special vehicles such as bulldozers, motorcycles, bicycles, etc.

〔effect〕

As described above, the wheel with tires according to the present invention uses a flexible annular rim equipped with slits in a desired pattern, instead of using compressed air as in conventional products for buffering purposes. It has the following advantages.

(1) Since compressed air is not used, there is no need for conventional air pressure checks, corrections, etc., and the associated compressors, gauges, etc. are also no longer required, and there is no need for punctures.

(2) If the wheel is made from a strong polyamide resin, ie, a nylon molded product, etc., it will have excellent durability and be lightweight.

(3) By appropriately selecting the shape of the slit in accordance with the application, it is possible to easily obtain various cushioning performances.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing a first embodiment of the present invention, and a second embodiment of the present invention is shown in FIG.
The figure is an enlarged cross-sectional view of the main part of the same as above, FIG. 3 and FIG. FIG. 8 is a plan view of essential parts of a wheel and a sectional view of essential parts of a tire showing a second embodiment of the present invention, and FIG. 8 is a plan view of essential parts of a wheel showing a third embodiment of the invention. 1... Axle, 3... Drum, 4... Rim, 5...
・Wheel, 6...Tire, 7...Horizontal slit, 8
...Vertical slit, 11.15...Protrusion

Claims (1)

[Claims] The wheel consists of a drum that is attached to an axle, and a cushioning annular rim for fitting tires on the periphery of the drum, and a tire that is fitted onto the rim of this wheel. A wheel with a tire, wherein a slit is provided, and the tire is provided with an anti-skid protrusion on an inner circumferential surface that fits into the slit.