JP2001219706A - Wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheel for preventing slip generating between a tire and a rim in sudden braking or in sudden start without using a bead stopper which is usually used. SOLUTION: An adhesive layer 8 is formed by coating an adhesive from a flange inside surface 6 in which a bead part 4 of a tire is fit to a bead sheet surface 7, and the adhesive has low peeling off resistance when the tire is removed and high shearing resistance so as not to slide in a pressure-contact state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel using a tube to prevent slippage between a tire and a rim.

[0002]

2. Description of the Related Art Although not limited to motorcycles, general wheels are constructed by mounting tires on wheel rims. By the way, if the vehicle is running at high speed and the brake is applied, the brake acts to stop the rotation of the wheel, and the rotation of the wheel is suppressed, so that the rotation of the tire mounted on the rim is the same. So try to stop. The vehicle continues to run until the rotation of the wheels completely stops, but large friction occurs between the tires and the road surface, so that the vehicle decelerates and finally stops.

[0003] The friction generated between the road surface and the tire becomes a torque for rotating the tire in a reverse direction. If this torque is too large, that is, if a sudden brake is applied, the torque becomes extremely large, and the tire is in contact with the rim. Slip occurs. Such slippage between the tire and the rim occurs not only when a sudden brake is applied but also when the vehicle is suddenly started.

[0004] In the case of a tubeless tire, since a large air pressure acts on the rim, the tire slips relatively little. Even if the tire slips, the valve is not broken and air does not leak. In some tires, the grip on the rim is small and the skid during sudden braking and sudden starting is remarkable. If the tire slips, the tube pressed against the inner surface of the tire also slides with the tire, and the valve of the tube is broken and punctured.

In order to prevent the tire from slipping, a tire slip stopper (bead stopper) as shown in FIG. 3 is conventionally provided. This bead stopper consists of a presser (a) and a screw (b) .The presser (a) is attached to the outer periphery of the rim (c), and the screw (b) extending from the presser (a) is a well of the rim. A nut (e) is screwed into the screw that penetrates (2) and extends inward. The bead parts (g) and (g) of the tire (f) to be mounted on the rim (c) are pressed by the presser (b) by tightening the nut (e), and the rim flange
(H) and the bead seat portion (N) and are fixed. One or two such bead stoppers are attached to a conventional rim (c).

By the way, if such a bead stopper is provided, even if a sudden brake is applied or a sudden start is performed, tire slip does not occur, but tire mounting work becomes troublesome. In addition, mounting the bead stopper not only increases the cost but also reduces the running stability of the vehicle due to the increase in weight. Furthermore, at the position where the retainer (a) is attached, the volume of the tube (re) is inevitably small, and the absorbing capacity against the impact caused by running the vehicle is low, resulting in deformation of the rim or tire tires. You will invite a punk.

[0007]

As described above, the conventional vehicle wheels have the above-mentioned problems. The problem to be solved by the present invention is this problem, and without using a bead stopper, it is possible to prevent slippage occurring between a tire and a rim when a sudden brake is applied or when a sudden start is performed. Provide wheels that can.

[0008]

According to the present invention, a tire is mounted on a rim of a wheel, and an adhesive is applied to a joint surface between the tire and the rim so that the mounted tire does not slip without using a conventional bead stopper. I do. This pressure-sensitive adhesive is not an adhesive for completely fixing the rim and the tire, and does not hinder the replacement of the tire.

That is, the bead portion of the tire is provided with an adhesive property having a high shear resistance so that the bead portion comes off the rim but does not slip in the joined state. Therefore, when mounting the tire, the tire is mounted with the above adhesive applied from the bead seat surface of the rim to the inner surface of the flange, and the tire is removed as it is, and the tire mounting and removing work method is the same as the conventional is there. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0010]

FIG. 1 is a sectional view showing a tire mounted on a rim. In FIG. 1, reference numeral 1 denotes a rim, reference numeral 2 denotes a tire, and reference numeral 3 denotes a tube. Here, the size and shape of the rim 1 and the shape of the tire 2 are arbitrary, but the bead portions 4 and 4 of the tire 2 are fitted and mounted on the flanges 5 and 5 of the rim 1.

The bead portion 4 of the tire is in contact with the inner surface 6 of the flange and the bead seat surface 7 by being fitted to the flange 5, and is in press contact with the inner surface 6 of the flange and the bead seat surface 7 by the action of internal pressure. . This is because the tube 3 fitted in the tire is filled with air, and the internal pressure acts evenly on the entire surface and presses the tire bead portions 4 and 4 against the flange 5 of the rim 1, and as a result, The side surface 6 and the bead seat surface 7 are joined with a high surface pressure.

In the present invention, an adhesive is applied from the inner surface 6 of the flange of the rim 1 to the bead sheet surface 7 to provide an adhesive layer 8 as shown in FIG.
Unlike this adhesive, it is easy to remove dentures, such as denture stabilizers, unlike adhesives for sticking.
It is an adhesive that can stabilize without being displaced when mounted. Also, it is necessary that the adhesive can be easily peeled off like the adhesive applied to the mating surface of the folding postcard.

Although the tire bead portion 4 is in pressure contact with the inner surface 6 of the rim flange and the bead seat surface 7, the tire 2 must be removable from the rim 1. Accordingly, the pressure-sensitive adhesive applied from the inner surface 6 of the flange to the bead sheet surface 7 has a small resistance so that the bead portion 4 can be peeled off relatively easily. However, the shear resistance is high so that it cannot be slid in a state of being pressed against the flange inner surface 6 and the bead seat surface 7.

In order to confirm the anti-slip effect of the pressure-sensitive adhesive, a shearing force was tested in a state in which a rubber piece was pressed against an aluminum rim. As a result, a slip resistance approximately 50% larger than when no pressure-sensitive adhesive was used was obtained. Indicated. The contact area of the rubber piece used in this test was 560 square mm (14 × 40), and the pressing force was 0.017 N / mm 2.

As described above, the wheel of the present invention is obtained by applying an adhesive to the inner surface of the flange of the rim on which the tire bead portion fits and the bead seat surface and mounting the tire thereon, and has the following effects. I can do it.

[0016]

According to the wheel of the present invention, since the tire is fitted with the adhesive applied to the inner surface of the flange and the bead seat surface to which the tire bead portion is fitted and pressed, the shear resistance of the adhesive causes a sudden increase. Even when a brake is applied or when the vehicle is suddenly started, slip generated between the tire and the rim can be suppressed. This tire slip prevention method only applies the adhesive, the weight of the wheel does not increase,
There is no adverse effect on running stability. When the conventional bead stopper is mounted, not only the weight is increased but also the mounting of the tire is troublesome, but this problem is completely solved.

On the other hand, when the bead stopper is provided, the tube volume in this portion becomes small, so that a large load acts on the rim when an impact is applied to the tire when the vehicle hits an obstacle during running. However, when the pressure-sensitive adhesive is applied, the tire volume is uniform everywhere, and the rim is not forced by the action of the impact.

[Brief description of the drawings]

FIG. 1 is a cross section of a wheel according to the present invention.

FIG. 2 shows a case where an adhesive layer is provided from the inner surface of the flange to the bead sheet surface.

FIG. 3 shows a conventional wheel provided with a bead stopper.

[Explanation of symbols]

 Reference Signs List 1 rim 2 tire 3 tube 4 bead portion 5 flange 6 inner surface of flange 7 bead seat surface 8 adhesive layer

Claims (1)

[Claims] 1. A wheel which can prevent slippage between the tire and the rim when the tire is mounted on the rim and sudden braking is applied or when the vehicle is suddenly started, from the inner surface of the flange where the bead portion of the tire fits. Adhesive is applied over the bead sheet surface to provide an adhesive layer.This adhesive has low peeling resistance of the bead part when removing the tire, but has high shear resistance to prevent slipping while pressing. A wheel comprising: