Abstract:
The present invention relates to a flat-running device intended for equipping a mounted assembly without an air chamber for a motor vehicle, and to such a mounted assembly incorporating this device.This device (30) comprises a wheel rim (10) with a plurality of blocks (10a and 10b) and a tire (20) comprising beads (21 and 22) mounted against flanges (12 and 13) of the rim, the device comprising: a structure (31) for supporting the tire, which structure is to be mounted around the rim and is divided into ring sectors (32) in the form of an arc of a circle, surmounted by a casing (34) which is intended for supporting the tire when the latter is running flat and which has two projecting lateral portions (34b) partially covering lateral faces (32b) of the structure, and means (33) for locking the beads against said flanges, which connect the annular supporting structure to the beads. According to the invention, these lateral portions incorporate means (34c) for holding the sectors, opposing the axial displacement of the latter under lateral forces in the event of a shock during running in the inflated state or in the event of running flat, so that these sectors remain surmounted by the casing.
Abstract:
A composite wheel is used with a pneumatic tire having at least one bead. The composite wheel includes a circular drum having an elongated skirt extending out from the circular drum substantial perpendicular thereto along the periphery of the circular drum. A tire bead retention member receives the bead of the pneumatic tire and is then removably secured to the elongated skirt with a nut and bolt fastening system. The removability of the tire bead retention member enables the pneumatic tire to be dismountable from the composite wheel. Run flat devices are attachable to the tire bead retention members prior to mounting the drum body which allow the pneumatic tire to run without air without destroying sidewalls of the pneumatic tire.
Abstract:
A device (20) for retaining the beads of a tire against the flanges of a rim. The bead retainer device (20) is a non rubber and non metallic ring structure of a composite material. The bead retainer device (20) is capable of being manually deformable in the axial direction. The bead retainer device is also capable of being manually deformable in the circumferential direction such as to be collapsible.
Abstract:
A band device for retaining a tire on a wheel rim in the event that the tyre should become deflated, which band device comprises a first band portion which is part circular for substantially its entire length, a second band portion which is part circular for substantially its entire length and which is substantially the same size as the first band portion, a link portion which is part circular for substantially its entire length and which is for joining the first and second band portions together at one end, and fastener means for joining the first and second band portions together at their other ends whereby the band portions and the link portion are retainable in position around a base of a wheel rim, the link portion having an apertured part for receiving a valve of a tube for a tire.
Abstract:
A bead retention system for mounting and retaining tires on a rim in which a band of resilient flexible material has a series of transverse bead separators mounted along its length at spaced-apart positions. The band has a length and configuration in the unstressed condition for positioning in a tire cavity prior to mounting of the tire on the rim. A cable connecting the ends of the band extends through a ratchet locking member and may be inserted through the valve hole of the rim whereby the band can be pulled down and locked in position around the rim after mounting of the tire on the rim.
Abstract:
This specification discloses four basic embodiments of a safety wheel and tire assembly that is mounted on the rim of a conventional vehicle wheel. In each embodiment, a safety wheel is provided in the form of a two-part safety rim which is erected into a position in which the beads of the tire are clamped against the flanges of the wheel rim and a lubricated rolling surface is provided at a radius appreciably less than the radius of the tire when inflated. Mechanism is provided to adjust the safety rim into a position for installation and removal by applying lateral pressure to the side walls of the tire. Latches hold the safety rim in erected position and are released either by the lateral pressure aforesaid or by a tool that is inserted through a hole in the wheel rim that is normally closed by a removable plug.