Abstract:
The invention relates to a device for inserting inside tires of a vehicle so that it follows its course without stopping after a bursting. The device comprises a cluster of flexible bladders (1) which are made of rubber, have a diameter of one to several inches according to the use, are interconnected by a cord (2.1) with its distribution branches (2.2, 2.3) and an inflating stem (3). The air enters each bladder via the cord by means of a very sensitive mini-check valve (9). During inflation, the air contained inside the space of the tire is purged via a purging system (6, 7, 8). In one variant, the principle of the valves, cord and purge is retained, but there are fewer bladders and they have the shape of sections of the tire. Bladders that are resistant to depression can also be used with the same valves and purge but without a cord. The refilling ensues by an over inflation step followed by a reduction effected by the purge until the operating pressure is reached. Finally, one or several rings of multiple or single chambers can be used that are inflated to a pressure greater than the tire and mounted inside around the wheel.
Abstract:
A safety liner (20) for a vehicle tire (500) includes a tubular body (22) having a one-way valve (24). A service valve (50) is selectively insertable into the one-way valve (24). Tubular body (22) is compressible into a flattened circular shape by a compressive force, and when the compressive force is removed, the tubular body (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 of vehicle tire (500) to be retained at a reduced profile.
Abstract:
The invention proposes a technique of preventing a propagation of a damage in a reinforcing layer to a toric air bag even if the reinforcing layer arranged on an outer peripheral side of the toric air bag in a safety tire to suppress an unnecessary size growth of the toric air bag and allowed to a proper expansion deformation of the toric air bag in the puncture of the tire or the like is damaged by foreign matters entered through a puncture hole into the tire, in which the reinforcing layer separately arranged from the toric air bag is fitted on the outer peripheral side of the toric air bag having a hollow torus shape over its full periphery to suppress the propagation of the damage in the reinforcing layer to the toric air bag through an interface layer therebetween.
Abstract:
A bead lock including an insert casing and a bead spacer for providing an air passageway in a vehicle tire to be mounted on a wheel rim on which is located an insert valve and a rim lip for retention of the vehicle tire bead, the insert casing including an insert bead adapted to push against the tire bead and to hold the tire bead firmly against the inner surface of the rim lip, the inner wall of the vehicle tire and the outer surface of the insert casing defining an internal tire space to be pressurized for inflation of the vehicle tire or depressurized for the deflation of the vehicle tire via the insert valve, the tire bead and the insert bead interposed between the internal tire space and the insert valve, the bead spacer extending from the insert bead to an insert valve area corresponding in use to the insert valve location whereby to define at least one air passage for communication of the internal tire space with the insert valve, wherein the bead spacer is made of material sufficiently flexible to substantially conform to the contours of the wheel rim and sufficiently incompressible to provide the air passageway.
Abstract:
A bead lock including an insert casing and a bead spacer for providing an air passageway in a vehicle tire to be mounted on a wheel rim on which is located an insert valve and a rim lip for retention of the vehicle tire bead, said insert casing including an insert bead adapted to push against said tire bead and to hold said tire bead firmly against the inner surface of said rim lip, the inner wall of said vehicle tire and the outer surface of said insert casing defining an internal tire space to be pressurized for inflation of said vehicle tire or depressurized for the deflation of said vehicle tire via said insert valve, said tire bead and said insert bead interposed between said internal tire space and said insert valve, said bead spacer extending from said insert bead to an insert valve area corresponding in use to said insert valve location whereby to define at least one air passage for communication of said internal tire space with said insert valve, wherein said bead spacer is made of material sufficiently flexible to substantially conform to the contours of said wheel rim and sufficiently incompressible to provide said air passageway.
Abstract:
A bicycle wheel includes an annular wheel rim and inner and outer tire members. The wheel rim has two outer side walls spaced apart from each other, two inner side walls disposed between the outer side walls, and a base wall interconnecting radial inner ends of the outer and inner side walls. The outer tire member has two opposite longitudinal edges engaging radial outer ends of the outer side walls, respectively, and cooperates with the wheel rim to confine a first inflation chamber. The inner tire member is disposed within the first inflation chamber between the inner side walls of the wheel rim, and is mounted on the base wall. The inner tire member confines a second inflation chamber and abuts against the inner side walls when inflated.
Abstract:
The invention proposes a technique of preventing a propagation of a damage in a reinforcing layer to a toric air bag even if the reinforcing layer arranged on an outer peripheral side of the toric air bag in a safety tire to suppress an unnecessary size growth of the toric air bag and allowed to a proper expansion deformation of the toric air bag in the puncture of the tire or the like is damaged by foreign matters entered through a puncture hole into the tire, in which the reinforcing layer separately arranged from the toric air bag is fitted on the outer peripheral side of the toric air bag having a hollow torus shape over its full periphery to suppress the propagation of the damage in the reinforcing layer to the toric air bag through an interface layer therebetween.
Abstract:
A run-flat insert 200 for enabling a vehicle to run for limited duration on a deflated tire 20, is mounted in an assembly comprising a pneumatic tire 20 and a wheel rim 10, and said insert is mounted inside the tire and secured to the wheel rim. The insert 200 has improved characteristics in load carrying, vehicle handling, mass, and shock transmission. Such a run-flat insert 200 comprises an outer, reinforced annular band 220 that is coupled with a sidewall portion 230 having little resistance to compressive loads, and the sidewall portion 230 tell mates in a base member 240 fitted around the wheel rim 10 for securing the insert 200 to the rim 10.
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:
An inner tire used in a dual-chambered tire is provided by an inner tire in which an exterior sidewall of tire provides for two annular rows of overlapping raised facets that extend above the exterior surface of the tire. Each facet defines a right angle with respect to the adjacent sidewall of the tire and provides for an elevated surface having a substantially uniform height with respect to the underlying tire exterior surface. The facets further define a plurality of gaps and passageways that have a constant height and through which pressurized air may flow during the inflation of the outer tire. The air gaps and air passageways defined by the facets have a sufficient depth that the resulting passageways do not collapse when the pressurized inner tire is in engagement with the pressurized outer tire.