ASSEMBLING BODY FORMED OF RIM, AND SUPPORT BODY FOR SUPPORTING

摘要

PROBLEM TO BE SOLVED: To improve a shape of a rim having a support member to cope with the blowout of a tire, for example, to facilitate attachment or detachment of a tire. SOLUTION: This assembling body is formed of a deformable and un- expandable support body S for supporting a tread that can be slipped on an appropriate rim support surface 11. In the support surface 11, a first rim sheet 13' extended outwardly by a low projection, namely a hump 15', is extended axially inside, and the first rim sheet 13' is tilted outside. A second rim sheet 13" has a bus of the axially inside end positioned on the circle with a diameter D"A larger than that of the circle for positioning an axially inside end D'A of the first rim sheet 13' in the view of the cross section in the meridian direction. Two sheets are at least extended axially inside than beheaded conical parts 17 and 14 having a height equal to 0.01 times of the minimum diameter of the support surface 11. The generating line of these sheets forms at least an angleαequal to 45 deg. with a rotation axis line.