An umbrella includes an anti-inversion mechanism that is configured to apply to each rib assembly a force that counters an inversion force that is applied to the umbrella. The anti-inversion mechanism includes a first rib joint that is coupled to first and second ribs, a first elongated member that is coupled to the first rib joint and a second elongated member that is coupled to the first elongated member and to the distal rib. The first rib joint includes an inner slot and the first elongated member comprises a wire having a bent clip portion at a first end of the wire, the bent clip portion being received within the inner slot and being biased against a floor of the inner slot resulting in the wire being attached to the first rib joint.

An umbrella includes an anti-inversion mechanism that is configured to apply to each rib assembly a force that counters an inversion force that is applied to the umbrella. The anti-inversion mechanism includes a first rib joint that is coupled to first and second ribs, a first elongated member that is coupled to the first rib joint and a second elongated member that is coupled to the first elongated member and to the distal rib. The first rib joint includes an inner slot and the first elongated member comprises a wire having a bent clip portion at a first end of the wire, the bent clip portion being received within the inner slot and being biased against a floor of the inner slot resulting in the wire being attached to the first rib joint.

An arthritic-aiding triple-sail wind-rotating wind-aligning auditory-pin-snap-locking-and-centering umbrella comprising: first and second and third arthritic-aiding canopy-rotating-and-aligning sails, a canopy attached to the first and second and third arthritic-aiding sails and having tension-adjusting oval openings, a pole having a fixed hub and a movable hub and at least one pin opening, an adjustable hub-rotation-preventing slot formed in the pole, an adjustable hub-rotation-preventing peg attached to the fixed hub and inserted into the adjustable hub-rotation-preventing slot, an arthritic-aiding ring elevator attached to the movable hub, tension-adjusting rods, rod-locking screws respectively screwed through the tension-adjusting oval openings and into the tension-adjusting rod, three pulleys respectively screwed to the fixed and movable hubs, a pulley cord threaded on the three pulleys and attached to the movable hub, two oval cord-locking gear cams attached to the movable hub, at least one pin opening drilled through the pole, a locking pin having an arthritic-aiding ergonomic grip ring, a recess molded on the locking pin, at least one pin-centering-and-guiding plug and tube having built-in auditorily-snap-locking leaf springs and leaf-spring towers inserted into the pole and aligned with the at least one pin opening, and a tower-locking screw screwed between the leaf-spring towers for locking the towers inside the pole.

Disclosed is an umbrella that can be used as a canopy to protect a user against rain or sunlight. The umbrella may comprise an elongate member having proximal and distal end portions, a support structure that is connectable to a canopy able to be disposed about the distal end portion of the elongate member, the support structure being be adjustable between an erect position, whereby the canopy is able to be tensioned by the support structure, and a collapsed position, whereby the tension in the canopy is able to be released. The umbrella may also include a plurality of biasing means configured to inhibit the support structure from inverting.

Disclosed is an umbrella that can be used as a canopy to protect a user against rain or sunlight. The umbrella may comprise an elongate member having proximal and distal end portions, a support structure that is connectable to a canopy able to be disposed about the distal end portion of the elongate member, the support structure being be adjustable between an erect position, whereby the canopy is able to be tensioned by the support structure, and a collapsed position, whereby the tension in the canopy is able to be released. The umbrella may also include a plurality of biasing means configured to inhibit the support structure from inverting.

An improved umbrella (10) comprising: a shaft (11); a plurality of ribs(13) spaced around the shaft (11) arranged to be capable of extending outwardly of the shaft (11) in a deployed condition; a canopy (12) supportable by the ribs (13); and a tensioner (19) comprising a filamentary material which extends around the perimeter of the umbrella (10), wherein the filamentary material (19) is arranged to tension the perimeter of the umbrella (10) and resist inversion of the umbrella (10) by pulling a distal end of each rib (13) towards the shaft (11) when in the deployed condition.

An improved umbrella (10) comprising: a shaft (11); a plurality of ribs(13) spaced around the shaft (11) arranged to be capable of extending outwardly of the shaft (11) in a deployed condition; a canopy (12) supportable by the ribs (13); and a tensioner (19) comprising a filamentary material which extends around the perimeter of the umbrella (10), wherein the filamentary material (19) is arranged to tension the perimeter of the umbrella (10) and resist inversion of the umbrella (10) by pulling a distal end of each rib (13) towards the shaft (11) when in the deployed condition.

A multi-function double-canopy umbrella comprises: a first foot, a second foot, a mounting plate bolted to the first and second feet, a lower post attached to the mounting plate, an upper post, an inner core inserted into the lower and upper posts, a central tube, a spool, a crank rotatably attached to the spool, a rope threaded through the central tube, central ribs, central arms pivotably attached to the central ribs, an adjustable central canopy attached to the central ribs to adjust to different heights, an intersector slidably attached to the central tube, first ribs pivotably connected to the intersector and central arms, second ribs, multi-rib-connecting cores slidably connected to the first and second ribs to adjust the multi-function double-canopy umbrella to multiple different sizes, raising arms foldably attached to the intersector, an adjustable ring canopy attached to the first and second ribs, and adjusting flaps sewn to the adjustable ring canopy to adjust it to multiple different sizes.

A multi-function double-canopy umbrella comprises: a first foot, a second foot, a mounting plate bolted to the first and second feet, a lower post attached to the mounting plate, an upper post, an inner core inserted into the lower and upper posts, a central tube, a spool, a crank rotatably attached to the spool, a rope threaded through the central tube, central ribs, central arms pivotably attached to the central ribs, an adjustable central canopy attached to the central ribs to adjust to different heights, an intersector slidably attached to the central tube, first ribs pivotably connected to the intersector and central arms, second ribs, multi-rib-connecting cores slidably connected to the first and second ribs to adjust the multi-function double-canopy umbrella to multiple different sizes, raising arms foldably attached to the intersector, an adjustable ring canopy attached to the first and second ribs, and adjusting flaps sewn to the adjustable ring canopy to adjust it to multiple different sizes.

A multi-angle multi-function umbrella comprises: a first foot, a second foot, a mounting plate bolted to the first and second feet, a lower post attached to the mounting plate, an upper post, a middle post, a first inner core inserted into the lower and middle posts, a second inner core inserted into the middle and upper posts, a central tube, a spool, a crank rotatably attached to the spool, a rope threaded through the central tube, central ribs, central arms pivotably attached to the central ribs, an adjustable central canopy attached to the central ribs to adjust to different heights, an intersector slidably attached to the central tube, first ribs pivotably connected to the intersector and central arms, second ribs, third ribs, first coil caps pivotably connected to the first and second ribs, second coil caps pivotably connected to the second and third ribs, raising arms foldably attached to the intersector, an adjustable ring canopy attached to the first and second ribs, and adjusting flaps sewn to the adjustable ring canopy to adjust it to multiple different sizes.