FIELD: life-saving appliances. SUBSTANCE: life-buoy ring has buoyant body with strong envelope whose inner cavity is filled with soft porous material having closed pores; life-buoy ring is also provided with grab line. Strong outer envelope is made from flexible material with rigid ring located in inner cavity; grab line is passed through rigid ring. Section of grab line located inside buoyant body may be provided with protective tubular envelope whose ends are tightly connected with strong outer envelope of buoyant body. EFFECT: enhanced strength and stability under external action; weakening of impact action at contact with person. 2 cl, 2 dwg
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