Rolling assembly comprising a tyre, a rim and an adapter

Abstract

The invention relates to a rolling assembly having an axis of rotation and comprising a tyre with two beads (B), a rim (J), and an adapter (A) joining one of the beads and the rim, said rim having two rim seats. The adapter comprises: an axially inner end (10) intended to be mounted on the seat of the rim and comprising an inner reinforcing element (16); an axially outer end (9) comprising an outer reinforcing element (15); a body (11) connecting the outer end with the inner end such as to form a single part and comprising at least one main reinforcing ply providing a link between the outer reinforcement and the inner reinforcement; a substantially cylindrical adapter seat (18) intended to receive one of the beads, said seat being located at the axially outer end of the body; and an adapter contact face (21) located substantially in a plane perpendicular to the axis of rotation, said contact face being located on the axially inner face of the axially outer end. The assembly is characterised in that: the reinforcing element of the axially outer end is located entirely outside the contact face; the body comprises an annular seat reinforcement (19) facing the adapter seat; and the rim is made from a material selected from among alloys of aluminium and / or magnesium, composite materials based on carbon fibres, glass fibres, aramid fibres, vegetable fibres, said fibres being in a matrix based on thermosetting compounds or thermoplastic compounds, or a complex compound comprising an elastomer and a complex based on resin and fibres selected from among carbon fibres, glass fibres, aramid fibres, vegetable fibres or combinations of said materials.

Description

technical field [0001] The invention relates to a rolling assembly mainly formed by a tire and a rim. [0002] A reminder of the definitions used in this invention are given below: [0003] - "axial": a direction parallel to the axis of rotation of the tyre, [0004] - "radial": the direction intersecting the axis of rotation of the tire and perpendicular to it, [0005] - "circumferential": the direction perpendicular to the radius and contained in a plane perpendicular to the axis of rotation of the tyre, [0006] - "radial section": a section in a plane containing the axis of rotation of the tyre, [0007] - "equatorial plane": the plane perpendicular to the axis of rotation and passing through the center of the tread. Background technique [0008] In order to reduce the carbon dioxide gas emissions of motor vehicles, manufacturers are seeking to reduce the mass of these vehicles and the rolling resistance of the tires fitted on them. This rolling resistance can be r...

AI Technical Summary

Problems solved by technology

However, such rims, although they are lighter and have a more open visual appearance so that the heat from the brakes can be dissipated more easily, they are not strong enough to resist eg pothole hits and / or curb hits

[0011] Specifically, knocks experienced by such rolling elements may cause one or more ruptures in the rolling element (tyre and / or rim) components

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