| 摘要 |
PCT No. PCT/EP83/00212 Sec. 371 Date Mar. 20, 1984 Sec. 102(e) Date Mar. 20, 1984 PCT Filed Aug. 5, 1982 PCT Pub. No. WO84/00740 PCT Pub. Date Mar. 1, 1984.An apparatus for carrying and transporting loads over a surface comprises: a supporting platform; a flexible damping ring fixed to the supporting platform along a circular closed-loop line of contact and defining a chamber adapted for inflation upon introduction of a pressurized medium; an uplift chamber defined between the supporting platform, the surface and an interior wall portion of the damping ring, the interior wall portion of the damping ring forming a lateral partition between the chambers during operation and the damping ring having at least one aperture enabling fluid communication between the chambers; and, the interior wall portion of the damping ring being stretchable and the remaining wall portions of the damping ring being substantially unstretchable, whereby introduction of the pressurized medium will effect inflation of the damping ring and pressurization of the uplift chamber, the pressurized medium escaping from the uplift chamber as a fluid film of substantially uniform thickness and pressure between the damping ring and the surface, notwithstanding movement of the apparatus over uneven and irregular surfaces. The apparatus may also comprise an annular disc fixed interiorly of the damping ring chamber at a uniform distance from the supporting platform, the disc having an outer circumference extending outwardly at least as far as does the closed-loop line of contact. The apparatus may further comprise a connecting chamber bounded at least partly by the supporting platform and forming a fluid interconnection between the damping ring chamber and the uplift chamber. |
