In one or more arrangements, an umbrella system includes a support pole connected to a rotating tube positioned around a center tube that extends between the support pole and a upper hub that is connected to an umbrella frame. The rotating tube has one or more helical grooves therein that are engaged by a lower hub which is connected to the umbrella frame. As the rotating tube is rotated, the lower hub is driven along the length of the rotating tube, thereby opening and closing the umbrella frame. In one or more arrangements, the system includes a rotational lock assembly configured to prevent rotation of the rotating tube when locked and permit rotation of the rotating tube when unlocked. In one or more arrangements, the system includes a counterbalance assembly that provides a counterbalance force positioned within a upper hub of the umbrella frame.

In one or more arrangements, an umbrella system includes a support pole connected to a rotating tube positioned around a center tube that extends between the support pole and a upper hub that is connected to an umbrella frame. The rotating tube has one or more helical grooves therein that are engaged by a lower hub which is connected to the umbrella frame. As the rotating tube is rotated, the lower hub is driven along the length of the rotating tube, thereby opening and closing the umbrella frame. In one or more arrangements, the system includes a rotational lock assembly configured to prevent rotation of the rotating tube when locked and permit rotation of the rotating tube when unlocked. In one or more arrangements, the system includes a counterbalance assembly that provides a counterbalance force positioned within a upper hub of the umbrella frame.

A twist lock mechanism for easily achieving a secure locking relationship between an outer member and an inner member is provided for use on an umbrella with a ball-joint based for adaptive orientation, and a spike receiving base or anchoring base mechanism.

A twist lock mechanism for easily achieving a secure locking relationship between an outer member and an inner member is provided for use on an umbrella with a ball-joint based for adaptive orientation, and a spike receiving base or anchoring base mechanism.

In one aspect of the present disclosure, an umbrella hub assembly comprises an a cylindrical portion and a socket coupled to the cylindrical portion. The socket can have a fixed end, a free end, and a cylindrical wall defining a concave space extending from the free end toward the fixed end. The socket can have an access aperture disposed through the cylindrical wall. The assembly can further include an umbrella rib comprising a first end, a second end, and an elongate body extending along a longitudinal axis. The first end can be configured to be received in the concave space through the free end such that the socket engages the umbrella rib and such that the first end is accessible through the access aperture.

In one aspect of the present disclosure, an umbrella hub assembly comprises an a cylindrical portion and a socket coupled to the cylindrical portion. The socket can have a fixed end, a free end, and a cylindrical wall defining a concave space extending from the free end toward the fixed end. The socket can have an access aperture disposed through the cylindrical wall. The assembly can further include an umbrella rib comprising a first end, a second end, and an elongate body extending along a longitudinal axis. The first end can be configured to be received in the concave space through the free end such that the socket engages the umbrella rib and such that the first end is accessible through the access aperture.

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 umbrella is provided that has a support pole, a canopy frame, and a set up assembly. The canopy frame is coupled with the support pole. The set up assembly is coupled with the canopy frame. The set up assembly is configured to open the canopy frame. The set up assembly has an actuator handle, a recess disposed on or in the support pole, and a locking pin. The locking pin is coupled with the handle and is moveable by the handle along a first direction between a first position and a second position. In the first position, the locking pin is disposed in the recess. In the second position the locking pin is spaced away from the recess. Movement of the locking pin along the umbrella pole adjacent to the recess in a second direction transverse to the first direction moves the locking pin between the first position and the second position in the first direction without moving the actuator handle in the first direction.