A coupling mechanism controls the location of the central primary draft load transmitting fixed-length link independently of the coupler. The coupling mechanism allows for translation in at least three orthogonal directions and for rotation of two distinct planes between coupled components, thereby providing a means for lateral shifting and articulation. The coupling mechanism mitigates unexpected rotation by restricting rotation along a longitudinal axis of the fixed-length link. Rotation of the coupling mechanism is furthermore controlled by means of a indexing turntable. The orientation and the position of the coupling mechanism is therefore determinant and predictable.

A coupling mechanism controls the location of the central primary draft load transmitting fixed-length link independently of the coupler. The coupling mechanism allows for translation in at least three orthogonal directions and for rotation of two distinct planes between coupled components, thereby providing a means for lateral shifting and articulation. The coupling mechanism mitigates unexpected rotation by restricting rotation along a longitudinal axis of the fixed-length link. Rotation of the coupling mechanism is furthermore controlled by means of a indexing turntable. The orientation and the position of the coupling mechanism is therefore determinant and predictable.

Disclosed herein are retractable umbrella frame devices comprising a base body structure at least partially surrounding a central axis structure. The central axis structure can be connected to a skeletal frame structure comprising a plurality of arms having a first end connected to the central axis structure and a second free end. The plurality of arms can be moveably connected to the central axis structure, such that the arms can be retracted into or extended from the base body structure. In some embodiments, the base body structure comprises open portions along its length. In some embodiments, the retractable umbrella frame devices further comprise one or more secondary support structures at least partially surrounding the base body structure. In some embodiments, the retractable umbrella frame devices can further comprise guide structures connected to the one or more secondary support structures and the arms of the skeletal frame structure.

Disclosed herein are retractable umbrella frame devices comprising a base body structure at least partially surrounding a central axis structure. The central axis structure can be connected to a skeletal frame structure comprising a plurality of arms having a first end connected to the central axis structure and a second free end. The plurality of arms can be moveably connected to the central axis structure, such that the arms can be retracted into or extended from the base body structure. In some embodiments, the base body structure comprises open portions along its length. In some embodiments, the retractable umbrella frame devices further comprise one or more secondary support structures at least partially surrounding the base body structure. In some embodiments, the retractable umbrella frame devices can further comprise guide structures connected to the one or more secondary support structures and the arms of the skeletal frame structure.

A cantilever umbrella including a frame having an upper tray and a lower tray is provided. Two first crossed rods, a transverse rod and a first long rib are articulated to the upper tray. Two second crossed rods and two first short ribs are articulated to the lower tray. One of the two first short ribs is articulated to a middle portion of the transverse rod and the other one is articulated to a middle portion of the first long rib. A middle portion of each second crossed rod is articulated to a middle portion of the first crossed rod on a same side. An end of each first crossed rod is articulated with a short-rib tray which is articulated to a short rib, and an end of each second crossed rod is articulated with a long-rib tray which is articulated to a long rib. The short ribs each has one end articulated to the short-rib tray and another end articulated to a middle portion of one of the long ribs. The upper tray and the two long-rib trays are each disposed with a cap thereon, and a canopy fabric is covered on the long ribs to form three canopies.

A cantilever umbrella including a frame having an upper tray and a lower tray is provided. Two first crossed rods, a transverse rod and a first long rib are articulated to the upper tray. Two second crossed rods and two first short ribs are articulated to the lower tray. One of the two first short ribs is articulated to a middle portion of the transverse rod and the other one is articulated to a middle portion of the first long rib. A middle portion of each second crossed rod is articulated to a middle portion of the first crossed rod on a same side. An end of each first crossed rod is articulated with a short-rib tray which is articulated to a short rib, and an end of each second crossed rod is articulated with a long-rib tray which is articulated to a long rib. The short ribs each has one end articulated to the short-rib tray and another end articulated to a middle portion of one of the long ribs. The upper tray and the two long-rib trays are each disposed with a cap thereon, and a canopy fabric is covered on the long ribs to form three canopies.

An umbrella assembly having a post supporting first and second pivot joints to move relative to each other along the post, and a support strut and adjacent stabilizing struts pivotally coupled to the first and second pivot joints and supporting the collapsible frame assembly of a canopy. The collapsible frame assembly collapses between an opened configuration and a collapsed configuration with movement of the first and second pivot joints relative to each other.

An umbrella assembly having a post supporting first and second pivot joints to move relative to each other along the post, and a support strut and adjacent stabilizing struts pivotally coupled to the first and second pivot joints and supporting the collapsible frame assembly of a canopy. The collapsible frame assembly collapses between an opened configuration and a collapsed configuration with movement of the first and second pivot joints relative to each other.

A support structure including an umbrella having an extension pole, and a base capable of being positioned on a bottom surface of a pool wherein the base has a through-hole. An umbrella base connector is seated within the through-hole. An articulating mechanism is adjustably coupled to the at least one extension pole of the umbrella and to the umbrella base connector, a first connector has a top end attached to the extension pole of the umbrella, and further has a first adjustable portion opposed from the top end. A second connector has a bottom end attached to the umbrella base connector, and further has a second adjustable portion opposed from the bottom end. The first adjustable portion is rotatably affixed to the second adjustable portion such that the umbrella and the extension pole of the umbrella are articulated relative to a stationary position of the base.

A support structure including an umbrella having an extension pole, and a base capable of being positioned on a bottom surface of a pool wherein the base has a through-hole. An umbrella base connector is seated within the through-hole. An articulating mechanism is adjustably coupled to the at least one extension pole of the umbrella and to the umbrella base connector, a first connector has a top end attached to the extension pole of the umbrella, and further has a first adjustable portion opposed from the top end. A second connector has a bottom end attached to the umbrella base connector, and further has a second adjustable portion opposed from the bottom end. The first adjustable portion is rotatably affixed to the second adjustable portion such that the umbrella and the extension pole of the umbrella are articulated relative to a stationary position of the base.