FIELD: articles of personal use.
SUBSTANCE: invention relates to foam spring, namely to foam spring with elastic foam tubular shell with orifices oriented inwards from outer surface, that can be used inside pillows, mattresses, armchair cushions, etc. Foam spring for pillows, coach cushions, mattresses etc. features elastic tubular foam shell with orifices from outer to inner surface, where orifices are symmetrical in checker order and mainly rhombic, and the tubular shell has such orifices only at a part of surface, alternating with surface without said orifices, forming longitudinal reinforcement fins in the wall of tubular spring shell.
EFFECT: due to even placement over tubular spring shell, reinforcement fins ensure better distribution of compression force when spring is loaded without the need to use metal springs or additional loads, or foam layers with different density.
12 cl, 2 dwg
