A tyre T for adaptively adjusting to the tyre's rolling conditions, the tyre T comprising first and second side walls (1, 2) with a contact wall (3) extending therebetween and a heater 7 for heating one or more of the first side wall (1), second side wall (2) and contact wall (3), wherein plural chambers (4, 5, 6) are defined within the tyre T, at least one of the plural chambers (4, 6) being selectively inflatable for altering the external shape of the first side wall (1), second side wall (2) and/or contact wall (3).

CONSTRUCTIVE ARRANGEMENT OF A FLEXIBLE WHEEL FOR WHEELBARROW OR MANUALLY TRACTIONED INDUSTRIAL CARTS is constituted by a single block that comprehends three parts: the outer ring(1), the center wall(2), and the inner ring(3); and the outer ring(1) has on its extremity a tread surface(15), and as tangents on each side it has side tread surfaces(12); and each side tread surface(12) has a plurality of radial cavities(11) spaced along the wheel; and the radial cavities(11) of a side tread surface(12) are not aligned in relation to the radial cavities(11a) of the opposite side tread surface(12a); and the center wall(2) is a flat, solid, ring-shaped wall contained in the central plane which contains the body of the wheel, and on each side of the flat wall there are a plurality of flexible structures(14) radially aligned to the radial cavities(11) contained in the outer ring(1); and the inner ring(3) is constituted of a circular wall(31), a reinforcement rim(32), and mass reducers(33); and the mass reducers(33) are recesses with radial walls.

A constructive arrangement of a flexible wheel for wheelbarrow or manually tractioned industrial carts is constituted by a single block that comprehends three parts: the outer ring (1), the center wall (2), and the inner ring (3); and the outer ring (1) has on its extremity a tread surface (15), and as tangents on each side it has side tread surfaces (12); and each side tread surface (12) has a plurality of radial cavities (11) spaced along the wheel; and the radial cavities (11) of a side tread surface (12) are not aligned in relation to the radial cavities (11a) of the opposite side tread surface (12a); and the center wall (2) is a flat, solid, ring-shaped wall contained in the central plane which contains the body of the wheel, and on each side of the flat wall there are a plurality of flexible structures (14) radially aligned to the radial cavities (11) contained in the outer ring (1).

A tyre T for adaptively adjusting to the tyre's rolling conditions, the tyre T comprising first and second side walls (1, 2) with a contact wall (3) extending therebetween and a heater 7 for heating one or more of the first side wall (1), second side wall (2) and contact wall (3), wherein plural chambers (4, 5, 6) are defined within the tyre T, at least one of the plural chambers (4, 6) being selectively inflatable for altering the external shape of the first side wall (1), second side wall (2) and/or contact wall (3).