PNEUMATIC TYRE WHEEL RIM Russian patent published in 1998 - IPC

FIELD: transport engineering; wheels of light snow and boggy vehicles on low pressure wide cross section pneumatic tyres. SUBSTANCE: rim has base 1 with coupling flange 2 secured on one end of rim. Coupling flange is made integral with conical seat 3 for mounting tyre bead. Detachable side ring 4 is secured on coupling flange 2 by means of bolts 5. Side edge is displaced inside the wheel relative to plane of coupling flange 2 and is moved onto conical seat 3 which has initial entering section with diameter smaller than minimum mounting diameter. Side ring 4 has conical surface section with cone angle equal to cone angle B of rim seat 3 and is mated with seat. Side edge is tilted outwards relative to wheel through angle A which is either greater than or equal to cone angle B of rim seat 3. EFFECT: improved mounting qualities, reduced weight and metal usage of rim. 2 dwg