Device for protecting a tyre sidewall

A rolling assembly including:

• a wheel comprising a rim provided with an internal flange and an external flange, the rim being composed of a first rim portion including the internal flange, and a second rim portion including the external flange, the first and second rim portions being fixed to each other by fixing members,
• the wheel including a tire having at least one sidewall, and first and second beads mounted against the internal and external flanges of the rim;
• and
• a tire-sidewall protection device including:
• a shield having an annular shape and comprising a polymer material, the shield having an outer peripheral edge and an inner peripheral segment opposite to the outer peripheral edge;
• a crown for mounting the tire-sidewall protection device on the rim of the wheel, the crown having a center and being secured to the shield and comprising:
• a connection portion for securely connecting the crown to the shield, wherein the connection portion is embedded within the inner peripheral segment of the shield, such that the connection portion is sealed within the polymer material constituting the shield, and wherein the shield extends radially over at least half of a radial height of the sidewall;
• a mounting portion, forming a single piece with the connection portion, provided with a plurality of mounting elements for mounting the crown on the rim, the mounting portion being radially located between the center and the connection portion and including a plurality of lug-shaped protuberances distributed along the circumference of the mounting portion while being angularly spaced from each other, each protuberance radially protruding towards the center of the crown and comprising at least one of the mounting elements,
• the crown being fixed to the rim and the mounting elements of the crown being mounted on at least some of the fixing members.