Patent ID: 6637486
Filing Date: 2003-10-28
Classification: B60B,B60C

Abstract:
A run-flat rim member for supporting a deflated vehicle tire includes:an annular main body portion providing a mounting for the vehicle tire; two sidewall shoulders formed on opposing sides of said annular main body portion and providing an anchoring means for the tire bead sidewall portion mounted on said sidewall shoulders; a substantially annular internal support member located between said sidewall shoulder, with said support member having an outer surface greater than said sidewall shoulder and including an annular groove extending around said support member to provide first and second outer peripheral surfaces; with said internal support member having at least one annular groove extending therein and having a transverse passageway extending therethrough to permit the wedging of the tire beads onto the rim member; said wedging transverse passageway includes an entrance section and an exit section; and wherein said entrance and exit sections are in different angular positions with respect to the annular main body and communicate with each other through said annular groove without affecting the continuity of the peripheral surface contact.