FIELD: motor industry.
SUBSTANCE: invention relates to the field of transport machine building, in particular to design of polyurethane car tyres with elastic deformable spokes. Car tyre is made of elastic polyurethane with elastic deformable spokes, which connect external ring with tread and internal ring fixed on metal rim of wheel to each other. External ring is arranged as alternating in thickness with increase of this thickness from spokes to the middles of ring parts arranged in gaps between spokes. Each of elastic spokes in profile is separated into two parts by a figure hole in the area of fixation to external rings. Tread is made of elastic polyurethane with addition of powder of material, which improves adhesion to road surface.
EFFECT: reduced weight and provision of even radial rigidity along perimetre of car tyre tread cap, as well as increased coefficient of its adhesion to road surface.
2 dwg
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