A special-shaped folding umbrella which includes a plurality of 3-fold ribs and a plurality of 4-fold ribs is revealed. When the umbrella is closed, a height of a first connecting point of the 3-fold rib and that of a first connecting point of the 4-fold rib are quite similar (almost the same). A height of a sixth connecting point of the 3-fold rib is at similar to that of a seventh connecting point of the 4-fold rib. A third connecting point of the 3-fold rib and a fourth connecting point of the 4-fold rib are at similar height and so are a fourth connecting point of the 3-fold rib and a fifth connecting point of the 4-fold rib. A tip of the 3-fold rib and a tip of the 4-fold rib are maintained at similar level while the umbrella is closed.

A special-shaped folding umbrella which includes a plurality of 3-fold ribs and a plurality of 4-fold ribs is revealed. When the umbrella is closed, a height of a first connecting point of the 3-fold rib and that of a first connecting point of the 4-fold rib are quite similar (almost the same). A height of a sixth connecting point of the 3-fold rib is at similar to that of a seventh connecting point of the 4-fold rib. A third connecting point of the 3-fold rib and a fourth connecting point of the 4-fold rib are at similar height and so are a fourth connecting point of the 3-fold rib and a fifth connecting point of the 4-fold rib. A tip of the 3-fold rib and a tip of the 4-fold rib are maintained at similar level while the umbrella is closed.

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 elongated member that is coupled at a first end to one rib of the plurality of ribs. The umbrella also includes a second elongated member having a first end coupled to the first elongated member. A first connector is coupled to a distal end of the distal rib; and a second connector is coupled to a second end of the first elongated member. The first connector and the second connector are coupled to one another to securely attach the second elongated member to the distal rib.

The presently disclosed subject matter is directed to a sun shade assembly. Particularly, the assembly includes a sail that releasably attaches to a pair of ribs, providing shade to the user. At least one support arm can be used to reinforce the ribs. A mast provides height to the assembly and includes an anchor that allows the assembly to be secured into a support surface (e.g., sand). The ribs and support arms rotate about the mast, thereby self-adjusting the direction of sail in response to the wind blowing. The assembly further includes a tension adjuster that can be tightened or loosed to control the rotation of the ribs and support arms in response to wind conditions.

The presently disclosed subject matter is directed to a sun shade assembly. Particularly, the assembly includes a sail that releasably attaches to a pair of ribs, providing shade to the user. At least one support arm can be used to reinforce the ribs. A mast provides height to the assembly and includes an anchor that allows the assembly to be secured into a support surface (e.g., sand). The ribs and support arms rotate about the mast, thereby self-adjusting the direction of sail in response to the wind blowing. The assembly further includes a tension adjuster that can be tightened or loosed to control the rotation of the ribs and support arms in response to wind conditions.

A radiative cooling fabric comprises a flexible substrate layer and a functional layer stacked in order. The first functional layer comprises a first functional resin and a first functional filler dispersed in the first functional resin. A mass fraction of the first functional filler in the first functional layer is in a range of 1% to 20%. An emissivity of the radiative cooling fabrics in the wavelength of 7 μm to 14 μm is not less than 80%. A reflectivity of the radiative cooling fabrics in the wavelength of 300 nm to 2500 nm is not less than 80%. An average value of warp recovery angles of the radiative cooling fabrics is greater than or equal to 95°, and an average value of the weft recovery angles of the radiative cooling fabrics is greater than or equal to 91°.

The invention is directed to an umbrella comprising a plurality of shingles attached to a webbed or mesh support. The umbrella includes a plurality of shingles attached in an overlapped orientation to a lower mesh layer. Each shingle is supported by a pair of grommets to prevent the shingles from moving and/or rotating in response to the wind. The shingles and mesh arrangement allow air to be vented through the umbrella canopy. As a result, the umbrella effectively resists wind and air gusts that commonly cause conventional umbrellas to be uprooted from the sand and/or damaged.

The invention is directed to an umbrella comprising a plurality of shingles attached to a webbed or mesh support. The umbrella includes a plurality of shingles attached in an overlapped orientation to a lower mesh layer. Each shingle is supported by a pair of grommets to prevent the shingles from moving and/or rotating in response to the wind. The shingles and mesh arrangement allow air to be vented through the umbrella canopy. As a result, the umbrella effectively resists wind and air gusts that commonly cause conventional umbrellas to be uprooted from the sand and/or damaged.

An umbrella is formed with a canopy having a light-up promotional display formed by one or more opaque/translucent/transparent letters formed in or added to the canopy, and a plurality of light emitting diodes (LEDs) positioned on the canopy beneath the one or more letters, and wiring to wire the plurality of LEDs together and to a source of electric power. The plurality of LEDs are distributed to light up each of the one or more letters when energized, and a switch is used to permit a flow of current from the source of electric power to energize the plurality of LEDs, when desired. The one or more letters are wired together to minimize a length of the wiring, and to minimize distortion and resistance of the canopy to being folded. The one or more letters may be formed of and/or may include a photo luminescent material, such as a phosphorescent material.

An umbrella is formed with a canopy having a light-up promotional display formed by one or more opaque/translucent/transparent letters formed in or added to the canopy, and a plurality of light emitting diodes (LEDs) positioned on the canopy beneath the one or more letters, and wiring to wire the plurality of LEDs together and to a source of electric power. The plurality of LEDs are distributed to light up each of the one or more letters when energized, and a switch is used to permit a flow of current from the source of electric power to energize the plurality of LEDs, when desired. The one or more letters are wired together to minimize a length of the wiring, and to minimize distortion and resistance of the canopy to being folded. The one or more letters may be formed of and/or may include a photo luminescent material, such as a phosphorescent material.