Abstract:
An object of the invention is to provide a tire tube which has excellent air impermeability and such excellent durability that the occurrence of cracks in the tube main body is prevented in a contact surface between the tube main body and an inner circumferential surface of the tire. The tire tube of the invention includes a tube main body having a multilayer structure in which at least one rubber layer and at least one thermoplastic resin layer made of a thermoplastic resin or a thermoplastic elastomer composition obtained by blending an elastomer in a thermoplastic resin are laminated together. In at least a region where the tube main body is in contact with the inner circumferential surface of the tire tread part, the rubber layer is placed as the outermost layer of the multilayer structure, and the thermoplastic resin layer is placed inside the outermost layer.
Abstract:
As to an air bladder having a laminate structure of an inner layer and an outer layer, there is provided a method wherein an air tightness in a joint portion of the inner layer is kept surely and a joint distance between the inner layer and the outer layer is properly configured.A hollow toric-shaped air bladder for a safety tire placed in a tire and filled with a gas and supporting a load applied to the tire by expansion-deformation based on dropping of a tire internal pressure, which has a laminate structure of an inner layer formed by rounding an innerliner member in a toric form and overlapping end portions of the innerliner member with each other at a side of an outer diameter of the toric, and an outer layer comprised of a main reinforcement member covering an outer peripheral face of the inner layer other than the overlapped portion of the innerliner member and a sub reinforcement member covering the overlapped portion including ends of the main reinforcement member.
Abstract:
The invention relates to a device for repairing a tubeless mounted assembly for a cycle, more particularly for a bicycle, comprising a rim and a tire. According to the invention, the repair device comprises an inner tube, the internal diameter D of which inner tube is greater than the diameter of the rim seats.
Abstract:
A tire assembly includes a safety rim, defining recesses on its inner surface, a tire including left and right edges, which are received in said recesses, and a plurality of inflated balls lying between the tire and the rim.
Abstract:
The present invention is a runflat insert comprising: a) an elastomeric outer contacting portion for contacting the interior surface of the tire during deflated operation of the tire, b) a reinforced annular band disposed radially inward of the outer contacting portion, where the band comprises an elastomeric shear layer, at least a first membrane adhered to the radially inward extent of the elastomeric shear layer and at least a second membrane adhered to the radially outward extent of the elastomeric shear layer, c) at least one sidewall portion extending radially inward from the contacting portion for connecting the annular band to a base member fitted around the wheel rim for securing said insert to the rim, and d) at least one carcass layer adhered to the annular band, and the carcass extending radially inward from said annular band and anchored in the base member; where the shear layer comprises an elastomeric composition that includes a metal salt of a carboxylic acid. The shear layer preferably comprises a dienic elastomeric composition that includes a metal salt of a carboxylic acid and is preferably cured with a peroxide curative agent. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate.
Abstract:
A tire capable of stably running even if the tire is subjected to external injury without sacrificing rolling resistance and ride comfort in the usual running before being subjected to external injury, is provided. A composite body consists of a continuous phase of a resin and closed cells arranged in an inside of a hollow doughnut-shaped tire and the composite body has a cell content of 80.00 vol % to 98.75 vol %, and an internal pressure at 25° C. in the closed cell included therein is not less than 150 kPa as an absolute pressure.
Abstract:
A safety liner (20) for a vehicle tire (500) includes a toroidal tube (22) having at least one hole (24). At least one plug (26) is selectively insertable into the at least one hole (24). Toroidal tube (22) is compressible into a flattened circular shape by a compressive force, and when the compressive force is removed, the toroidal tube (22) resiliently assumes its original toroidal shape. Safety liner (20) is installed in the cavity (503) of vehicle tire (500) as the vehicle tire (500) is being installed on the tire rim (502). If a blowout or other leak occurs, safety liner (20) will cause the shape and pressure of vehicle tire (500) to be retained for a period of time.
Abstract:
A tire assembly (200) having runflat capability comprises a tire (202) mounted to a rim (203) to provide a tire cavity (204) defined by a carcass circumferential inner surface (246), two sidewall inner surfaces (248A,248B) and the rim. The tire assembly (200) is characterized by having a platform (206) disposed circumferentially around the rim within the tire cavity and one or more hoops (208A-208C) disposed within the tire cavity (204) between the platform (206) and the carcass circumferential inner surface (246) so that under normal inflation the one or more hoops do not contact either the carcass circumferential inner surface (246) or the sidewall inner surfaces (248A,248B), but below a first runflat inflation pressure, the one or more hoops (208A-208C) contact and support the carcass circumferential inner surface (246).
Abstract:
A shock absorbing tire and wheel assembly, particularly suitable for civil engineering plant comprises interconnected outer (15) and inner (14) chambers. The chambers are interconnected by passages which preferentially allow flow from the outer chamber (15) to the inner chamber (14). The passages preferably include at least one passage (21) which permits flow in either direction between the chambers and at least one passage (22) which permits flow from the outer chamber to the inner chamber, but prevents or restricts reverse flow. The passages (22) may be fitted with flap valves (23).
Abstract:
A ceiling tile contains a plurality of shells made of a thin membrane and filled with fire retardant materials. When the shells are subjected to high temperatures, as when a fire is present in the room, the shells burst and release the fire retardant materials to extinguish the fire.