Tire safety support and rim and support assembly containing centering means and with facilitated mounting

A safety support designed to be inserted by a relative translation operation on a wheel rim bearing, said support having an axially front face and an axially back face and containing a base intended to fit around said bearing as well as a body connected to said base, said bearing having an engagement edge and said translation operation consisting of moving the engagement edge of the rim bearing of said axially front face of the support toward said axially back face, characterized in that the radially lower surface of the base of the support presents a plurality of circumferentially distributed centering protuberances, each of said centering protuberances possessing in section through an axial plane at least one portion of a radially inner profile, whose distance from the axis of the support gradually diminishes in the axial direction between a value exceeding the radius of the engagement edge of the rim bearing on the back side of the support and a value less than that radius toward the front side of the support.

A safety support designed to be inserted by a relative translation operation around a rim bearing, said support having an axially front face and an axially back face and containing a base intended to fit around said bearing, as well as a body connected to said base, said bearing having an engagement edge and said translation operation consisting of moving the engagement edge of the rim bearing of said axially front face of the support toward said axially back face and said body containing suitable zones for defining cavities separating the base and the radially outer part of the support and distributed around the support, characterized in that the radially inner surface of said base of the support presents a plurality of circumferentially distributed centering protuberances, and in that at least some of said protuberances are radially arranged internally opposite corresponding cavities in said body.

A safety support designed to be inserted by a relative translation operation around a rim bearing, said support having an axially front face and an axially back face and containing a base intended to fit around said bearing, as well as a body connected to said base, said bearing having an engagement edge and said translation operation consisting of moving the engagement edge of the rim bearing of said axially front face of the support toward said axially back face, said base containing a zone of resistance appreciably inextensible circumferentially, but flexible, and the radially inner radius of which is slighter greater than the radius of the rim support bearing, as well as centering means, characterized in that the centering means consist of a plurality of circumferentially distributed protuberances radially arranged internally relative to said zone of resistance of said base and the radially inner walls of which are inscribed in free state on a radius less than the radius of the rim support bearing.

A wheel assembly containing a rim and a safety support, said support being designed to be inserted by a relative translation operation around a bearing of said rim, having an axially front face and an axially back face and containing a base intended to fit around said bearing as well as a body connected to said base, said bearing having an engagement edge and said translation operation consisting of moving the engagement edge of the rim bearing of said axially front face of the support to said axially back face, characterized in that said assembly contains a plurality of circumferentially distributed protuberances, compressed radially between the base of said support and said rim bearing in order to create an appropriate mechanical tightening between said support and said bearing and to ensure the centering of said support on said bearing.