JP2007290703A5 - - Google Patents

Claims (5)

A rotating rim (23-29) for attaching a tire (30) and an annular bearing support (40; 42; 46-49) capable of supporting the tread of the tire when expansion pressure is lost from the tire ) And
A first rim seat (51) and a second rim seat (52), each of the rim seats being adapted to receive a bead (61, 62) of the tire, each of the rim seats having a bus bar; The inner end (512, 522) of the bus bar is located on a circle having a diameter D _I larger than the diameter D _{E of} the circle where the outer end (511, 521) is located,
A support bearing surface formed of at least one substantially cylindrical rotating surface with an average diameter D _P extending axially between the two sheets and in close contact with the bearing support. (56)
In a rim having a circumferential groove (55) provided axially between the support bearing surface and the first rim seat (51),
Said first rim seat (51), the axial inner side is defined by the protrusion (58), the outer diameter D _S of the projecting portion is larger than the average diameter D _P of the support bearing surface, the support bearing axial width L _G surface and the circumferential groove provided in the axial direction between the projecting portion (55), the bearing support has been determined to be able to get over the protrusion ,
The average diameter of the first rim sheet (51) is smaller than the average diameter of the second rim sheet (52),
Wherein the axial width L _G of the circumferential grooves provided in the axial direction between the projecting portion defining an axial inner side of the sheet of support bearing surface and a small diameter (55), the support bearing surface A rim having an axial width L _P or more. The difference between the average diameter D _P is greater than 5 mm, the rim according to claim 1 of the outer diameter and the support bearing surface of the projecting portion (58) (56).   A wheel having the rim according to claim 1 or 2.   A tire / wheel assembly comprising a tire (30), an annular bearing support (40; 42; 46-49) and a wheel according to claim 3. A method of attaching a tire / wheel assembly, the tire / wheel assembly comprising a disc (22) and a wheel having a rim (23-29) according to claim 1 or claim 2,
A bearing support (40; 42; 46-49);
A tire (50) having a first bead (61) and a second bead (62) adapted to be attached to the first rim sheet (51) and the second rim sheet (52), respectively, The method is
(A) introducing the bearing support into the tire;
(B) providing the second bead and the support support on the rim from the first rim seat side;
(C) The second bead is guided onto the support bearing surface, and a circumferential groove (55) is provided between the support bearing surface (56) and the first rim seat in the axial direction. Step)
(D) sliding the support support on the support support surface;
(E) attaching the first bead to the first rim sheet and attaching the second bead to the second rim sheet;
The mounting of the bearing support is such that the axis of symmetry of the bearing support relative to the axis of symmetry of the rim can be tilted so that the bearing support can exceed the protrusion (58) defining the first rim seat. A method that is performed by