Description:[00019] The detailed description is set forth with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items. 15 [00020] Fig.1 illustrates a sectional view of atire flange of the multi-piece wheelrim, according to an embodiment herein;
[00021] Fig. 2 illustrates a sectional view of a bead seat of the multi-piece wheel
rim, according to an embodiment herein;
[00022] Fig. 3 illustrates a tireflange and bead seat assembly of the multi-piece
20 wheel rim, according to an embodiment herein;
[00023] Fig. 4 illustrates a multi piece wheel rim assemblyshowing rim base,
saddle ring, endless ring, bead seat and tire flange, according to an embodiment
herein;
[00024] Fig. 5a illustrates exemplary stresses acting on bead seat of a multi piece
25 wheel rim, according to prior art;
[00025] Fig. 5b illustrates stresses acting on the bead seat of the multi piece wheel
rim, according to an embodiment herein;

[00026] Fig. 6a illustrates a multi piece wheel rim assembly with saddle lock ring
according to prior art;
[00027] Fig. 6b illustrates a multi piece wheel rim assembly with conventional
split lock ring, according to prior art; and
5 [00028] Fig.7 illustrates a conventional multi piece wheel rim assembly showing
radial clearance between tire flange and bead seat band, according to prior art. , Claims:We Claim:
1. A tire flange and bead seat assembly of a multi-piece wheel rim, comprising:
at least onetire flange (101);
at least one bead seat (201);
5 characterized in that
wherein the tire flange (101) including anend face (103a) and a
circumferentially extending tapered radially inward surface(103b);
a first tapered surface (203a) including a taper with angle of inclination ?1
configured on a circumferentially extending radially outward surface(205a)

10 of the bead seat (201);

a second tapered surface (203b) including a taper with angle of inclination
?2configured on a circumferentially extending radially inward surface (205b)
of the bead seat (201);
the circumferentially extending tapered radially inward surface (103b) of the
15 tire flangeprovided with a taper matching the taper of thefirst tapered surface

(203a); and
the circumferentially extending tapered radially inward surface (103b) of the
tire flange mounted completely within the first tapered surface (203a) of the
bead seat upon tire inflation, thereby preventing fretting.

20 2. The tire flange and bead seat assembly as claimed in claim 1, wherein the tire
flange (101) including a radially extending axially outward surface (101b)
and a radially extending axially inward surface (101a), wherein the radially
extending axially outward surface (101b) divided into an upper surface
(102a) and a lower surface (102b);

25 wherein a thickness T1 formed between the upper surface (102a) and the
radially extending axially inward surface (101a) and a thickness T2 formed
between the lower surface (102b) and the radially extending axially inward
surface (101a); and

13

wherein the thickness T2 less than the thickness T1 for providing a clearance
between the lower surface (102b) and a radially extending axially inward
flange surface (207a) of a bead seat flange (207).
3. The tire flange and bead seat assembly as claimed in claim 1, wherein an
5 outer fillet (104a)provided at an edge between aradially extending axially
outward surface (101b) of the tire flange (101) and the circumferentially
extending tapered radially inward surface (103b) and an inner fillet (104b)
provided at the edge between aradially extending axially inward surface
(101a) of the tire flange (101) and the circumferentially extending tapered
10 radially inward surface (103b) for reducing stress concentration on the tire
flange (101). 4. Thetire flange and bead seat assembly as claimed in claim 1, wherein the
angle of inclination?1 greater than the angle of inclination?2 for gradually
increasing section in critical region of the bead seat (201) under load, thereby
15 enhancing rigidity of the bead seatand restricting the tire flange (101) in not
establishing contact with a radially extending axially inward flange surface
(207a) of the bead seat (201) upon tire inflation. 5. Thetire flange and bead seat assembly as claimed in claim 2, wherein the
thickness T1 and T2 of the tire flange (101) determinedbased on load acting 20 on the wheel, thereby reducing weight of the wheel. Dated this