Filled Foam Tire

This tire abandons hollow air cavity design and adopts full internal foam filling molding method. Special closed-cell foaming raw materials are injected into the whole tire body under constant temperature and pressure, so the inner part is fully filled without empty gaps or partial hollow areas. The foam core and outer rubber layer are tightly fused together during integrated molding, there is no risk of internal delamination after long-term rolling, squeezing and twisting. The foam core keeps uniform density all over the tire, which can offer consistent supporting force at every contact position when bearing weight. The whole forming process strictly controls foaming pore size, so the internal foam structure won't shrink, collapse or expand with temperature changes in different seasons.

Most places where mobility equipment travels are mixed with fine stone chips, broken plastic scraps and thin metal fragments scattered on the ground. Ordinary inflatable tires are easy to be pierced and stop working suddenly, but this foam filled style can avoid such troubles fundamentally. The outer rubber layer has moderate hardness matching inner foam elasticity. When rolling over floor gaps, slight road undulations and gravel ground, the integrated structure can absorb jolts softly without obvious bumping feeling during riding. The tread surface keeps balanced friction force, it won't slide sideways when slowing down or turning on flat ground and gentle slopes, and the rolling resistance will not be too heavy to push the equipment laboriously. Running noise is kept low, suitable for indoor rest areas and quiet public spaces.

The matching formula of outer rubber and inner foam is adjusted according to long-term repeated rolling scenes. The outer rubber surface is added with anti-wear auxiliary ingredients, daily continuous reciprocating use will not quickly wear thin or form irregular concave marks on the tread. Under standard load limits, even if the tire bears static pressure for days on end, the foam filling inside will not produce permanent indentation. After months of daily use, the overall circular outline of the tire can still be maintained completely, and the rolling hand feel will not become stiff or lagging over time. No frequent replacement of tires is needed for equipment used every day, effectively cutting repeated purchasing expenditure for users and institutions.

Different from pneumatic tires that need regular air pressure inspection and leakage repair, this foam filled tire has no air storage space inside, so there is no follow-up maintenance work after installation. There is no need to prepare air pumps, repair glue or spare inner tubes for later use. For nursing rooms, community activity halls and household long-term use, the tedious inspection and maintenance work can be omitted completely. Even after long-time outdoor wind and sun exposure, the integrated tire body will not leak air or break suddenly, users can travel without worrying about midway equipment failure.