Abstract:
A method for expanding and curing foamable elastomeric material which is placed within the cavity of a previously molded tire. The tire, filled with foamable rubber material, is mounted on a wheel rim and contacted with steam in an elemental oxygen-free atmosphere to simultaneously foam and cure the elastomeric material within the tire cavity.
Abstract:
AN APPARATUS FOR AT LEAST PARTIALLY FILLING A MOLDED AND VULCANIZED TIRE WITH FOAMABLE, ELASTOMERIC MATERIAL. THE APPARATUS HAS A PAIR OF PARALLEL, UPPER AND LOWER BEAD SEATS ON WHICH A VULCANIZED TIRE IS MOUNTED. AN INFLATABLE RING IS MOVED INTO POSITION FOR ANNULARLY ENGAGING AND CONSTRICTING THE TIRE TO MAINTAIN THE BEADS OF THE TIRE IN FIRM SEATED RELATION AGAINST THE BEAD SEATS. AN EXTERNALLY, ACCESSIBLE CHAMBER IS MOVABLE INTO COMMUNICATING RELATION WITH THE ANNULAR CAVITY OF THE TIRE MOUNTED ON THE BEAD SEATS. UNFOAMED, ELASTOMERIC MATERIAL IS THEN PLACED
IN THE CHAMBER AND A RAM IS USED TO FORCE THE MATERIAL FROM THE CHAMBER INTO THE TIRE CAVITY. THE RAM CARRIES A BLADDER WHICH IS CENTERED IN THE SPACE BETWEEN THE BEAD SEATS AND INFLATED TO COMPRESS THE MATERIAL WITHIN THE TIRE CAVITY AGAINST THE INNER CROWN OF THE TIRE. THE VARIOUS COMPONENTS ARE THEN MOVED OUT OF INTERESTING RELATION WITH REMOVAL OF THE FILLED TIRE FROM THE MACHINE. THE FILLED TIRE IS THEN MOUNTED ON A WHEEL RIM AND HEATED TO FOAM AND CURE THE ELASTOMERIC MATERIAL IN THE TIRE CAVITY.
Abstract:
Particular embodiments of the invention comprises a composition for reducing weight imbalances, force variations, and/or vibrations in a tire-wheel assembly, the composition comprising a first plurality of particulate for positioning within the tire-wheel assembly, where each particle in the first plurality of particulate is characterized as having low energy absorption capabilities, and a second plurality of particulate for positioning within the tire-wheel assembly, where each particle in the second plurality of particulate is characterized as having elevated energy absorption capabilities. Additional embodiments of the invention comprise a method for reducing force imbalances, force variations, and/or vibrations in a tire-wheel assembly, which includes the steps of providing a tire-wheel assembly and placing into a pressurization chamber of said tire-wheel assembly a composition as contemplated in any embodiment or combination of embodiments suggested herein.
Abstract:
A molded body is useful in non-pneumatic tires. The non-pneumatic tires containing the molded body are useful for vehicle wheels such as wheels for cars, bikes, motorcycles, trucks, e-scooters, toys, sports equipment, golf caddy, strollers, or wheelchairs. A process for manufacturing the molded body for non-pneumatic tires is also provided.
Abstract:
A method for producing a tire filled with a (meth)acrylic hydrogel, the method comprises a) providing a mixture comprising at least one water-soluble (meth)acrylic compound, water and an initiator, and b) filling the mixture in a tire in which the mixture polymerizes to form the (meth)acrylic hydrogel. The tire filling material is suitable for producing flat proof tires, enables fast and controlled cure and is insensitive towards dosage errors. Moreover, the tire filling material is environmental friendly and cost effective.
Abstract:
A tire structure includes a tire; an attachment layer positioned between an inner surface of the tire and a spike supporting layer, and allowing the spike supporting layer to be coupled to the inside of the tire; and a spike supporting layer coupled to the inside of the tire by the attachment layer and supporting the spikes operated in conjunction with deformation of the tire, thereby enabling an existing tire to be used for the power generation system using tire deformation.
Abstract:
A puncture resistant tube tor a bicycle tire fitted to a rim of a bicycle wheel includes a tube body inserted into the bicycle tire along a tube insertion recess formed within the bicycle tire and an elastic recess depressed into the tube body adjacent to the portion of the bicycle tire to be fitted to the rim. When the portion of the bicycle tire to be fitted to the rim is shrunk by external force, elastic force is accumulated in the portion of the tube body surrounding the elastic recess while the elastic recess is being shrunk. When the bicycle tire is completely fitted to the rim, the elastic recess is restored to the original shape thereof by the accumulated elastic force, whereby the portion of the tire fitted to the rim is restored to the original shape thereof.
Abstract:
The present invention relates to the preparation of a tire (e.g. open torroidal shaped tire) which contains a closed cell cellular rubber within its tire cavity. In one aspect, the cellular rubber is a closed cell cellular rubber composition prepared with an organic peroxide curative with closed cell forming blowing agent. In one aspect, the tire may contain the closed cell cellular rubber under pressure within its tire cavity. In another aspect, the closed cell cellular rubber is formed with a heat profile for the rubber tire casing by utilization of a balance between an organoperoxide and blowing agent to cause a cooperative combination of curing and closed cellular formation of the rubber composition within the tire casing cavity.
Abstract:
A tire, and an apparatus and method for forming a tire. The tire may either be a tubed or tubeless tire, and is filled with a mixture of virgin rubber and small rubber pieces. Preferably, a machine grinds the core of used flatproofed tires, or pieces thereof, into a finely communicated pulverulent. The pulverent is mixed with liquid virgin flatproofing material, such as a polyurethane. An injector introduces this mixture, into the core of a tire, typically through a valve. The core of the tire is preferably substantially filled with this mixture. The injector may take the form of one or more elongated screws and the mixing may occur as the ground rubber is being conveyed by the screw.