| 摘要 |
An inflatable umbrella (10) including a handle (14) including a pressurized gas canister (42) with a propellant (31) disposed therein, the canister (42) having a frangible portion (44), a plurality of inflatable rib channels (18) attached to the handle (14) and in substantially sealed fluid communication therewith, and a trigger (48, 52, 54) for selectively rupturing the frangible portion (44) of the canister (42) so as to release the propellant (31) which inflates the inflatable rib channels (18), wherein the inflatable rib channels (18) form an umbrella when inflated, characterized by each of the inflatable rib channels (18) being formed of two foldable sheets (20) joined at peripheral, lengthwise edges (22, 24) thereof to define a generally straight shank portion (26), wherein the shank portions (26) are commonly joined together generally along a longitudinal centerline (28) of the shank portions (26) so as to divide each shank portion (26) into two separate passageways (30) for flow therein of the propellant (31), the passageways (30) extending radially outwards from the commonly joined centerline (28), and wherein each passageway (30) includes a canopy support portion (34) extending generally transversely therefrom, the passageway (30) and the canopy support portion (34) thereby defining a continuous pathway for flow therein of the propellant (31), the pathway being open at a proximal end (36) thereof which is attached to the handle (14) and in substantially sealed fluid communication therewith, and the pathway being sealed at a distal end (38) of the canopy support portion (34), the canopy support portions (34) being connected to an umbrella canopy (40). |
