Flat-running device for an automobile, mounted assembly including same and related mounting/removal method

Abstract

The present invention relates to a flat-running device intended for being fitted on an assembly mounted on a tubeless one-piece rim for an automobile, said mounted assembly including said device, and to a method for mounting and / or removing said mounted assembly. The device according to the invention (1) includes a ring (2) with a radially internal mounting surface for the device, intended to closely match the hollow section of the rim (11), the ring having an open structure with two ends held closely facing one another by a means (5) for clamping the ring. According to the invention, at least one transverse notch (6), the two edges and the bottom of which are located under one of the ends of the ring, is formed in at least one of said side portions (3a), forming a circumferential lip which projects axially from the corresponding side wall of the ring, which includes said recess and is suitable for wedging the ring in the hollow section of the rim, such as to enable, via said notch, transverse insertion of a tool (7) such as a lever between the rim and said mounting surface in order to facilitate the operations of mounting and / or removing the device on the rim.

Description

technical field [0001] The present invention relates to a run-flat device for fitting on a mounting assembly of the tubeless type having an integral rim for a motor vehicle, and to such a mounting assembly comprising said device and when A partial or total deflation enables a motor vehicle to travel a considerable distance at relatively high speeds, and relates to a method of mounting and / or removing said mounting assembly. Background technique [0002] For integral rims, known run-flat devices generally consist of a rigid support ring mounted within the tire tightly around the rim of the wheel. For example, the ring is formed as a single piece with relatively flexible sidewalls that may be continuous or alternatively formed as an open flexible piece (i.e. an open piece from which a portion is removed), or formed as at least two circular arcs or sectors. Rigid piece. [0003] Both patent documents FR-A1-2755905 and WO-A1-2008 / 132348 disclose a ring-type run-by device for a...

AI Technical Summary

Problems solved by technology

[0005] A major disadvantage with these steps of installing / removing a split ring run-flat is that the ring does not always rotate simultaneously with (i.e. does not rotate as one with) the rim and tire during installation, which may make this installation difficult, and removing the ring from between the rim flanges can present many difficulties

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