Hutchinson

Stéphane Auvray

Olivier Marsaly

Bruno Pelletier

Eric Carpentier

Sébastien Mathieu

Stéphane Mouton

Patrick Clement

The present invention relates to a run-flat device for attaching a tubeless mounted assembly for a motor vehicle, and to such a mounted assembly incorporating said device. A device () according to the invention includes: a tire support structure (), to be mounted around a rim having a plurality of pieces and comprising a reinforcing frame, and a bead lock means for locking the beads against the rim edge and connecting the support structure to the beads. According to the invention, the frame comprises an axial belt having at least one pair of ends opposite each other, separated by a connecting axial interstice, and connected therebetween by detachable connecting means () for locking the belt, the support structure being radially split on both sides on the right of each interstice to enable the manual mounting of the device inside the casing by the gradual insertion therein of the structure, temporarily free of the connecting means.

Run-flat device for a motor vehicle, mounted assembly incorporating same, and manufacturing and assembly method for same

A clamp collar of the annular band type is provided, and includes a connecting mechanism for connecting at least one pair of adjacent ends of the band, and to a run-flat device intended to be fitted to a motor vehicle mounted assembly incorporating same. This clamp collar includes a band, preferably made of metal, having at least one pair of ends spaced apart in the circumferential direction, connecting mechanism for connecting the or each pair of ends together with adjustable tightening in this direction and a locking member for locking the connecting mechanism. The locking member is mounted solid with one of these ends being able to occupy an unlocked position in which it is disengaged from the connecting mechanism for tightening and loosening the collar and a locked position in which it engages with them to oppose this loosening.

Clamp collar and run-flat device incorporating same

The invention relates to a flat running device to be fitted on a tubeless mounted assembly for an automobile, and to such a mounted assembly including said device. The flat running device () of the invention comprises: an annular bearing structure () comprising a ring having a radially outside bearing face () for bearing a flat-running tire cover (), and at least one tightening belt () surrounding the ring so as to maintain the same substantially in contact with a running rim (), at least one radial reinforcement () being formed in the bearing face, the tightening belt(s) being applied on said reinforcement and being recessed relative to the bearing face. According to the invention, the bearing structure includes a means () for locking it in this hollow () by mounting the same so as to bear against a side wall () of the hollow, a radially inner face () of the locking means being adapted so as to conform to the axial profile of the bottom () of said hollow.

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Lamorlaye, France

Stéphane Auvray