An umbrella assembly is provided that includes a frame, a canopy, an extension and a base. The frame includes a post and top piece, a number of arms, a number of connectors, a lift ring and a locking pin. The post includes a number of rod members attached together in adjacent parallel space orientation with a top piece which rotatably attaches to each of a number of arms each arm having a number of arm rod members attached together in adjacent parallel space orientation. Each arm is rotatably attached to one end of a connector. The other end of each connector is rotatably attached to the lift ring. Raising and lowering the lift ring opens and closes the umbrella arms. The locking pin holds the lift ring in an upper position.

A frame for a shading product and a beach umbrella is provided. The frame for a shading product includes a central rod, a plurality of top frame units, a first slider arranged on the central rod and an extension rod. Each top frame unit includes a first top rod rotatably connected to the central rod and a second top rod. Each second top rod is rotatably connected to the first slider, and the first top rods, the second top rods, the central rod and the first slider form crank-slider mechanisms. The extension rod is pivotally connected to one top frame unit to allow the extension rod to flip upwards relative to the top frame unit when the frame for a shading product overturns on its side to the ground.

A frame for a shading product and a beach umbrella is provided. The frame for a shading product includes a central rod, a plurality of top frame units, a first slider arranged on the central rod and an extension rod. Each top frame unit includes a first top rod rotatably connected to the central rod and a second top rod. Each second top rod is rotatably connected to the first slider, and the first top rods, the second top rods, the central rod and the first slider form crank-slider mechanisms. The extension rod is pivotally connected to one top frame unit to allow the extension rod to flip upwards relative to the top frame unit when the frame for a shading product overturns on its side to the ground.

A rib structure of an inverse folding umbrella includes an umbrella pole assembly and a plurality of umbrella rib components; the umbrella pole component including an umbrella pole a first umbrella receptacle and a second umbrella receptacle, the first and second umbrella receptacles; the umbrella rib component including a first bar, a connecting piece, a tail bead, a first pivot connecting base, a movable pivot, connecting base, the movable pivot connecting base between the third bar and the fourth bar, which makes the third bar and the fourth bar connected to each other and drive each other to move, and relieve the wind resistance upon the second bar, such that the second bar will not distort easily and can be kept in good condition after a long time of use, and the strength of the whole umbrella rib structure is greatly enhanced.

A rib structure of an inverse folding umbrella includes an umbrella pole assembly and a plurality of umbrella rib components; the umbrella pole component including an umbrella pole a first umbrella receptacle and a second umbrella receptacle, the first and second umbrella receptacles; the umbrella rib component including a first bar, a connecting piece, a tail bead, a first pivot connecting base, a movable pivot, connecting base, the movable pivot connecting base between the third bar and the fourth bar, which makes the third bar and the fourth bar connected to each other and drive each other to move, and relieve the wind resistance upon the second bar, such that the second bar will not distort easily and can be kept in good condition after a long time of use, and the strength of the whole umbrella rib structure is greatly enhanced.

An umbrella is formed of an elongated shaft having a first end and an opposite second end and a runner slidably disposed about the elongated shaft. The umbrella includes a rib assembly including a plurality of ribs that are attached to the runner by a plurality of struts that move between open and closed positions. In accordance with the present invention, the elongated shaft has a cross-sectional shape defined by a plurality of curved sections and a plurality of planar sections interspersed between the plurality of curved sections for providing increased torsional strength to the elongated shaft. At least one of the ribs can have a cross-sectional shape defined by a plurality of curved sections and a plurality of planar sections interspersed between the plurality of curved sections for providing increased torsional strength to the at least one rib.

An umbrella is formed of an elongated shaft having a first end and an opposite second end and a runner slidably disposed about the elongated shaft. The umbrella includes a rib assembly including a plurality of ribs that are attached to the runner by a plurality of struts that move between open and closed positions. In accordance with the present invention, the elongated shaft has a cross-sectional shape defined by a plurality of curved sections and a plurality of planar sections interspersed between the plurality of curved sections for providing increased torsional strength to the elongated shaft. At least one of the ribs can have a cross-sectional shape defined by a plurality of curved sections and a plurality of planar sections interspersed between the plurality of curved sections for providing increased torsional strength to the at least one rib.

An electric umbrella having roller sets contains: a first stick section, a second stick section, a third stick section, and a transmission mechanism. The second stick section is fitted in the third stick section, and the third stick section is fitted in the first stick section, a lower portion of the second stick section is in connection with a handle. The first stick section includes an upper runner disposed on a top including a first roller set disposed therein, and two ends of the driving rope are fixed on two sides of the lower runner, the driving rope rolls across the first roller set and slides between a top of the third stick section and the first roller set, and the transmission mechanism in the second stick section and drives the third stick section through a driving source in the handle drives the umbrella skeleton to expand or retract.

An embodiment of the present invention relates to a portable shelter, whether being of the type having a floating canopy or an umbrella. The shelter includes a support including an upright. A canopy is supported by the support. The canopy includes an expandable frame, and a sheet of material supported by the frame. The frame includes retractable ribs supporting the sheet. The frame also includes a stretcher arrangement for stretching out each rib from the support. The stretcher arrangement includes a first stretcher for coupling between the support and the rib; and a second stretcher for coupling to the first stretcher.

An embodiment of the present invention relates to a portable shelter, whether being of the type having a floating canopy or an umbrella. The shelter includes a support including an upright. A canopy is supported by the support. The canopy includes an expandable frame, and a sheet of material supported by the frame. The frame includes retractable ribs supporting the sheet. The frame also includes a stretcher arrangement for stretching out each rib from the support. The stretcher arrangement includes a first stretcher for coupling between the support and the rib; and a second stretcher for coupling to the first stretcher.