Abstract:
A tubeless tire includes a tread portion, two sidewalls, an interfacing material integrally formed between the two sidewalls of a pliable, flexible yet reliable material, two beads extending outwardly from the tire, delimiting a section formed by the interfacing material, and an air valve stem provided on the interfacing material. The thickness of the interfacing material is substantially the same as the thickness of the two sidewalls, and the beads project outwardly of an outer surface of the interfacing material. The beads are disposed in a position such that when the tire is mounted on a rim, the beads will fit within the rim, when the tire is inflated on the rim using the air valve stem, the interfacing material will expand, causing the beads to fit tightly within the rim, thus fixing the tire on the rim, and there is no sealing layer within the tire.
Abstract:
A peroxide-crosslinked rubber composition having a superior anti-blooming property of a crosslinking agent and a high hardness containing (A) more than 60 parts by weight but not more than 95 parts by weight of rubber selected from NR, IR, SBR, BR, EPM, EPDM, silicone rubber and/or fluororubber and (B) 5 parts by weight but less than 40 parts by weight of a polar polymer having a solubility parameter (Sp value) of at least 17.6 (Pa1/2) and a weight average molecular weight of at least 100,000.
Abstract:
The present invention is directed at a tire design, which allows for proper operational characteristics in all operating conditions, and is not dependent on pneumatic pressurization. The tire is mounted in a wheel rim, and comprises an integral homogeneous toroidal body having a pair of spaced-apart radially extending sidewalls and a cross member. Each sidewall has a first and a second end and an internal face and an external face, with the second end of each of the sidewalls integrally merging into the cross member. A set of rim-engaging surfaces at the first end of each of the sidewalls allows effective mounting to conventional tire rims. An annular chamber is defined by the internal faces of the sidewalls and an internal top wall on the cross member opposite the at least one road engaging surface. The set of rim-engaging surfaces includes a lobe-like portion at the first end of each of the sidewalls, the respective lobe-like projections may be separable when the tire is not mounted on the rim, but being compressed into engagement when the tire is mounted in the rim, thereby closing the annular chamber, or integral with one another to form the enclosed chamber.
Abstract:
A pneumatic vehicle tire made of rubber or a rubber-like compound has a tire body with two sidewalls and a tread extending between the sidewalls. A carcass is embedded in the tire body and extends from a radially inner edge of a first sidewall to a radially inner edge of a second sidewall. A belt is embedded in the tire body radially inwardly of the tread and radially outwardly of the carcass. A rim-shaped support with fastening elements positioned radially outwardly at the support is provided. The support is connected to the tire body. Reinforcement elements in the form of cords and bands are connected to the fastening elements for forming the carcass. The reinforcement elements extend substantially without deflection from the fastening elements into a neutral bending line of the sidewalls.