Abstract: A sunshade comprises a post, a support rod having a lower end detachably mounted on top of the post, a runner mounted to the support rod and slidable along a longitudinal direction of the support rod, plural stretchers, and plural ribs. Each rib comprises an upper tube and a lower tube that are engaged together in a manner allowing relative longitudinal telescopic movement therebetween. Each upper tube comprises an upper end pivotally connected to an upper end of the support rod. A button is provided for retaining each lower tube in one of an extended state and a retracted state relative to an associated one of the upper tubes. An end of each stretcher is pivotally connected to an associated one of the lower tubes. The other end of each stretcher is pivotally connected to the runner.

Abstract: A stretch frame of the outer tent for the foldable tent mainly comprises a clamp support having a rear stretch frame and a lower stretch frame. The latter is allowed to move up and down at the pivot of the clamp support. A clamp pivot connected to the clamp support. The clamp pivot is permitted to move up and down against the clamp support. The clamp pivot has tow front stretch frames which are allowed to move leftward or rightward or combined into one. The rear stretch frame is linked to the upper nest and the lower stretch frame, linked to the lower nest. The front stretch frames extend the outer tent toward in an effort to enhance the outer tent performance.

Abstract: A catch-free umbrella includes: a central shaft, a rib assembly pivotally secured to the shaft and an umbrella cloth secured on the rib assembly; with the rib assembly having a plurality of top ribs pivotally secured between an upper notch formed on the shaft and a plurality of stretcher ribs pivotally inclinedly secured to a runner slidably held on the shaft; and the top ribs radially arcuately bent to form a lotus-shape arrangement when opening the umbrella to form an upward force fraction acting on the runner for lifting the runner and the rib assembly without gravitational descending; whereby upon closing of the umbrella by initially lowering the runner, the top ribs of lotus-shape arrangement will serve as closing springs for closing the umbrella automatically.

Abstract: The present invention proposes an improved pull rod structure of a self-opening umbrella, wherein joints are disposed in stretchers. The joints are made of plastic material. The present invention is characterized in that each of the joints has a soft pull rod integrally formed therewith. The other end of each of the soft pull rods is installed in a lower nest. The joints are exploited to facilitate the assembly of a self-opening umbrella.

Abstract: A foldable umbrella includes a post; a stationary hub secured to an upper end of the post; a canopy centrally secured to the stationary hub; a sleeve slidably mounted on the post; a plurality of radially oriented ribs secured to the canopy in equiangularly spaced relation, each rib having a radially inner end and a radially outward end; a plurality of foldable strut assemblies, each strut assembly connected between the sleeve and a respective one of the ribs, each strut assembly including a first strut having one end pivotally connected at a first pivot point to the sleeve and a second end pivotally connected to a respective one of the ribs at a second pivot point spaced radially outwardly from the radially inner end of the rib, a second strut having one end pivotally connected at a third pivot point to the stationary hub and a second end pivotally connected at a fourth pivot point to an intermediate point of the first strut, and a third strut having one end pivotally connected at a fifth pivot point to an in

Abstract: The present invention relates to a strengthened structure of a wind-proof umbrella, which includes a frame being consisted of elastic main ribs and stretched ribs being connected with related joint on the main rib. An extended rod is formed under the joint to contact the stretched rib, when the umbrella is opened, for providing a downward force to offset an upward force on the main rib and obtaining strengthened wind-proof effect to prevent the main rib from being outward folded or broken.

Abstract: A wind-protecting skeleton for folding umbrella is characterized in a rib-pulling mechanism mounted between each stretcher and each corresponding outer rib of the umbrella. The rib-pulling mechanism includes a flexible pull cord having an inner knotted end connected to a predetermined position on the stretcher and an outer knotted end movably connected to an eye at an inner end of a rigid wire. An eye at an outer end of the rigid wire is pivotally connected to a coupling device fixedly connected to a predetermined position on the outer rib. When the umbrella is stretched, the flexible pull cord and the rigid wire together pull the outer rib inward to protect the same from turning upward or breaking due to a strong wind force against an inner side of the umbrella.

Abstract: An umbrella rib assembly includes a top rib pivotally connected with a stretcher rib both being made of aluminum alloy for light weight and easy processing; a middle rib pivotally secured to the stretcher rib and a tail rib pivotally connected with the middle rib, with the middle rib and the tail rib being made of light weight carbon-fiber-reinforced plastics.

Abstract: A wind-proof umbrella has secondary ribs pivotally connected with second linking ribs and having a flexibility the same as that of flexible ribs that are mounted between second joints on the second linking ribs and third joints on the outer supporting ribs. The secondary ribs are overlapped on top of the flexible ribs and able to pivot with respect to the flexible ribs so as to prevent a flip-over of the umbrella.

Abstract: A foldable umbrella includes a post; a stationary hub secured to an upper end of the post; a canopy centrally secured to the stationary hub; a sleeve slidably mounted on the post; a plurality of radially oriented ribs secured to the canopy in equiangularly spaced relation, each rib having a radially inner end and a radially outward end; a plurality of foldable strut assemblies, each strut assembly connected between the sleeve and a respective one of the ribs, each strut assembly including a first strut having one end pivotally connected at a first pivot point to the sleeve and a second end pivotally connected to a respective one of the ribs at a second pivot point spaced radially outwardly from the radially inner end of the rib, a second strut having one end pivotally connected at a third pivot point to the stationary hub and a second end pivotally connected at a fourth pivot point to an intermediate point of the first strut, and a third strut having one end pivotally connected at a fifth pivot point to an in

Abstract: An umbrella includes a plurality of ribs pivoted to a ferrule on a stem, and a plurality of stretchers pivoted to a runner which is slidably sleeved on the stem. Each interconnecting member includes a first portion mounted on the respective rib, and a second portion mounted on the respective stretcher and connected to and retainingly slidable relative to the first portion along the length of the rib so as to provide a buffering action to the rib once the latter is subjected to an upwardly blowing force of wind.

Abstract: The present invention relates to a five-folded umbrella frame, which mainly provides a new hooked connecting structure between the extended rib and the frame for facilitating the manufacturing and assembling of an umbrella. Under the improved assembly, the frame obtains a better flexibility and the umbrella can be opened or closed smoothly. This provides improvement and utility.

Abstract: A wind pressure releasable umbrella/parasol each of whose plurality of main ribs has a brace tied to its lower end at one end and the other end hung free in a cantilever manner. An upper cover cloth is shading from the top ends of the main ribs and down to points corresponding to the free ends of the braces, on the hand, a lower cover cloth is shading from the free ends of the braces down to the lower ends of the main ribs. A slit of clearance is formed between slightly overlapped edges of the two cover clothes so as to release wind pressure exerted on the umbrella/parasol by allowing the wind to leak therefrom.

Abstract: A mist-producing umbrella device for providing a soothing and cooling mist for users on a hot day at a beach. The mist-producing umbrella device includes an umbrella assembly including an elongate tubular support member and a collapsible canopy mounted upon a top end of the elongate tubular support member; and also includes a water control assembly including a housing being removably attached to the elongate tubular support member, and also including a water reservoir being disposed in the housing, and further including a pump being disposed in the housing and being connected to the water reservoir; and further includes a mist-dispensing assembly including a conduit being connected to the housing, and also including tubular branch members being securely attached to the elongate tubular support member and extending radially therefrom.

Abstract: The present invention provides an umbrella with a detachable canopy or vent top. The umbrella includes: a canopy, where the canopy may be detachably coupled to a frame; and a vent top, wherein the vent top may be detachably coupled to the canopy. In the preferred embodiment, the canopy may be comprised of eight, sixteen, or twenty-four panels. The vent top may be comprised of multiple panels as well. Each of the individual panels of the canopy may have a different color, so that canopies with various patterns are provided. The individual panels of the vent top may be provided in the same manner. In the preferred embodiment, both the canopy and the vent top also comprise a border, which may also be provided with a different color. Thus, by varying the color combinations of the panels of the canopy, the panels of the vent top, and the borders around the canopy and vent top, umbrellas with different patterns are possible.

Abstract: An auxiliary elastic support mechanism for a large umbrella with automatic open feature is provided. The umbrella is supported by a plurality of ribs and a plurality of spreaders. The mechanism comprises a plurality of rib joint members each put on the rib having a pivot joint and a first spring anchoring lug; a plurality of spreader joint members, each having an outer end secured to one of the rib joint members, an inner end for receiving the spreader therein, and a second spring anchoring lug; and a plurality of auxiliary springs each having an outer hook engaged with the first spring anchoring lug and an inner hook engaged with the second spring anchoring lug.

Abstract: An intermediate rib for collapsible umbrella is provided. The collapsible umbrella includes multiple sets of rib arrangements each of which includes an intermediate rib and an intermediate tie in addition to many other ribs and ties. The intermediate rib and tie are associated with each other by a collar put around them. The intermediate rib includes an U-shaped inner part that is adapted to support and pivotally connect to other appropriate ribs, and a round outer part that is sufficiently flexible to elastically bend in response to a wind pressure without becoming broken. The outer part of the intermediate rib bends naturally under a tension of the cover of the umbrella when the latter is stretched, giving the stretched umbrella a smooth and graceful appearance.

Abstract: A novel umbrella structure, comprises mainly a shaft, two surface frames, and two connecting parts; wherein, the connecting parts are formed basically by crossing two ribs with each other, and linking them with an main notch and a main runner provided on the shaft and with an sub-notch and sub-runner provided on the surface frames, such that each surface frame can be linked on both symmetrical sides of the shaft, respectively, by the connecting part. As the main runner provided as a sleeve around the shaft slides up and down, the sub-runner on the surface frame will be driven by the connecting parts and slide up and down correspondingly, and its distance to the sub-notch is exactly equal to the distance from the main runner to the main notch and thereby, the umbrella surface can be completely spread out.

Abstract: An improved automatic opening wind resistant umbrella structure made of fiberglass reinforced plastics (FRP) mainly uses an innovative connection mechanism to associate secondary umbrella stretchers with umbrella ribs and has advantages of simplified construction and reinforced combination strength. The automatic opening wind resistant FRP umbrella structure according to the invention provides excellent convenience in use.

Abstract: An umbrella includes a shaft having a plurality of ribs radially and pivotally connected to a finishing cap on the top of the shaft and a sleeve is slidably mounted to the shaft. A stop, a first flange and a second flange respectively extend radially outward from the sleeve, wherein the first flange is located between the stop and the second flange. A collar is movably mounted to the sleeve and located between the stop and the first flange. A plurality of first stretchers pivotally connected between the collar and the ribs. A runner is movably mounted to the sleeve and located between the first flange and the second flange. A plurality of second stretchers are pivotally connected between the runner and the ribs. The sleeve is pushed toward the collar to move the collar and to let the panel be expanded by the first stretchers and the movement of the ribs expand the second stretchers.

Abstract: A hub and rib assembly for umbrella comprises a hub and a plurality of ribs, all made of ductile material. Each rib has an end integrally formed and connected with the hub, whereby assembling thereof is easy and not involved other tools. In other word, the cost is reduced and the safety is enhanced.

Abstract: A rib assembly for multiple-fold umbrella includes: an aluminum top rib pivotally secured to an upper notch formed on a top portion of a central shaft, an aluminum stretcher rib pivotally connected between the top rib and a lower runner slidably held on the central shaft, a plastic intermediate rib interconnected between the top rib and an aluminum or plastic outer rib, an aluminum connecting rib pivotally connected between the stretcher rib and the intermediate rib, and a spring rib slidably coupled to the intermediate rib by a ring member fastened on the intermediate rib; with the plastic intermediate rib interconnected among those light ribs for strengthening the rib assembly substantially made of light-weight materials.

Abstract: A wind-resistant umbrella. The wind-resistant umbrella includes a holder cord (8) that is arranged offset with the stretcher (3) so that the cord (8) does not contact with the stretcher (3), thus avoiding any friction that may occur on an interface therebetween during the closing or opening of the umbrella. The wind-resistant umbrella includes an upper catch (10) that is selectable from designs that vary in resistance to wind. The wind-resistant umbrella includes a runner (4) having an enlarged pushing body (14) provided with guide grooves (18, 18′) that allow the runner (4) to pass therethrough downwardly along the shaft (1), thereby preventing the runner (4) from hitting against the upper catch (10).

Abstract: A foldable umbrella includes a post; a stationary hub secured to an upper end of the post; a canopy centrally secured to the stationary hub; a sleeve slidably mounted on the post; a plurality of radially oriented ribs secured to the canopy in equiangularly spaced relation, each rib having a radially inner end and a radially outward end; a plurality of foldable strut assemblies, each strut assembly connected between the sleeve and a respective one of the ribs, each strut assembly including a first strut having one end pivotally connected at a first pivot point to the sleeve and a second end pivotally connected to a respective one of the ribs at a second pivot point spaced radially outwardly from the radially inner end of the rib, a second strut having one end pivotally connected at a third pivot point to the stationary hub and a second end pivotally connected at a fourth pivot point to an intermediate point of the first strut, and a third strut having one end pivotally connected at a fifth pivot point to an in

Abstract: A foldable umbrella includes an elongate handle, a ferrule fixed on an upper end thereof, a runner sleeved slidably on the handle. Each of a plurality of rib assemblies includes elongated first, second and third ribs. The first rib has a first proximate end connected pivotally to the ferrule, a first distal end, a first pivot and a longitudinal slide slot. The second rib has second proximate and second distal ends, and a second pivot disposed adjacent to the second proximate end. The second pivot is connected pivotally to the first distal end of the first rib. The third rib has third proximate and third distal ends, and a third pivot connected pivotally to the second distal end of the second rib. A stretcher has a fourth proximate end connected pivotally to the runner, and a fourth distal end connected pivotally to the first pivot of the first rib.

Abstract: A canopy frame for umbrellas has a structure adapted for various shapes, making the appearance of umbrellas dexterous and interesting. The frame has a main shaft, an upper sliding notch, a lower sliding notch, multiple positioning ribs, multiple upper spreaders, upright ribs, upper angle-forming clamps, auxiliary stretchers, lower spreaders and multiple clamping pieces. Two positioning holes are on the main shaft for the fixing of the upper and lower sliding notch and at the top end of the main shaft is disposed the fixed notch. The upper and lower sliding notch mounted consecutively on the main shaft under the fixed notch. One end of each positioning rib is connected to the fixed notch and the other end is associated with an upper angle-forming clamp. One end of each upper spreader is fixed to the upper sliding notch and the other end is engaged with the middle hinge point of the upper angle-forming clamp.

Abstract: The present invention discloses an aluminum alloy umbrella stretcher structure having light weight and improved strength of resisting being broken by strong wind. The improvement comprises providing a carbon fiber segment on the second main umbrella stretcher. In other words, the second main umbrella stretcher according to the invention is composed of an aluminum alloy segment integrated with a carbon fiber segment effectively to enhance the strength of umbrella stretchers, avoiding being broken when the umbrella canopy is reversed by strong wind.

Abstract: A safety umbrella includes: a central shaft; a rib assembly having a plurality of top ribs pivotally secured to an upper notch on the shaft each top rib pulled by a pulling rope to be tensioned towards an upper portion on the shaft, and a plurality of stretcher ribs each pivotally connected between each top rib and a runner slidably held on the shaft, with each stretcher rib forming an acute angle between the stretcher rib and the shaft; whereby upon opening of the umbrella, the tension force as effected by the pulling rope and acting upon each top rib will be transferred to each stretcher rib to form an upwardly orienting fraction force to lift the stretcher rib along the shaft to stably hold the rib assembly at an opening state; and a ball resiliently held in a lower portion of the shaft, whereby upon closing of the umbrella, the runner will be engaged with the ball for stably retracting the rib assembly at a folded condition, thereby eliminating the acute spring catches as found in a conventional umbrella

Abstract: A foldable umbrella includes a post; a stationary hub secured to an upper end of the post; a canopy centrally secured to the stationary hub; a sleeve slidably mounted on the post; a plurality of radially oriented ribs secured to the canopy in equiangularly spaced relation, each rib having a radially inner end and a radially outward end; a plurality of foldable strut assemblies, each strut assembly connected between the sleeve and a respective one of the ribs, each strut assembly including a first strut having one end pivotally connected at a first pivot point to the sleeve and a second end pivotally connected to a respective one of the ribs at a second pivot point spaced radially outwardly from the radially inner end of the rib, a second strut having one end pivotally connected at a third pivot point to the stationary hub and a second end pivotally connected at a fourth pivot point to an intermediate point of the first strut, and a third strut having one end pivotally connected at a fifth pivot point to an in

Abstract: A windproof umbrella including a tension member formed of resilient material with inner and outer ends of the tension member being bent into hooks for connecting to the associated stay and joint member.

Abstract: The present invention relates to umbrellas having various canopy shapes which shapes can be altered during use. A multiple position rib formed of a telescoping rib girder in combination with a hub slide assembly with multiple hubs allow the umbrella to be opened to two or more functional positions. An embodiment is an umbrella that can be used as a car shade having two open canopy configurations. In a first open position, all multiple position ribs are in an extended position so that the umbrella serves as a conventional rain umbrella. In a second open position, at least one of the multiple position ribs is folded to allow the umbrella to fit inside a vehicle windshield thereby serving as a sun shade. The multiple position rib can be formed of a rigid inner support assembly and a flexible outer cantilevered assembly.

Abstract: A skeleton for umbrellas includes an elongated shank, a runner slidably mounted on the shank, a sleeve slidably fitted on the shank and arranged above the runner, a spring disposed between the runner and the sleeve, and a joint fixedly secured to an upper end of the shank, characterized in that a plurality of primary stretchers are pivotally connected with the sleeve, a plurality of secondary stretchers having an end pivotally connected with an upper end of the runner and having another end pivotally connected with an intermediate portion of a respective one of the primary stretchers, a plurality of reinforcing arms pivotally connected at a first end thereof with another end of a respective one of the primary stretchers, and a plurality of ribs pivotally connected at an end with the joint and pivotally connected with a second end of a respective one of the reinforcing arms.

Abstract: An improved parasol with an improved ventilation system. The parasol, includes a foldable frame with concentric first and second panels. The radius of the first panel is shorter than the length of the rib of the parasol. The second panel is annular in shape and covers the area from the outer periphery of the first panel to the outermost edge of the parasol. A cord is provided between the second panel's inner periphery and the stretchers to enlarge the gaps at the areas where the first and the second panel overlap. A plurality of elastic loops are provided at the first panel's outer periphery to provide elasticity to the first panel to prevent the first panel from turning inside out in strong wind.

Abstract: The present invention relates to a collapsing mechanism of automatic fourfold collapsible umbrellas, especially to an umbrella structure in which a restoring spring is disposed in a second parallelogrammatic frame set. The restoring spring can exert enough forces to quickly retract umbrella stretchers and ribs when an umbrella is collapsed. Thus the collapsing mechanism according to the invention can rapidly and smoothly pull down a fourfold collapsible umbrella.

Abstract: A rib assembly for umbrella includes: at least a top rib pivotally secured to an upper notch fixed on a top portion of a central shaft, a stretcher rib pivotally connected with the top rib and pivotally secured to a runner slidably held on the shaft an intermediate connecting rib pivotally connected to the top rib through an intermediate connecting rib, and a tail rib pivotally connected to the intermediate rib; with the top rib formed as a slim elongate rod having an outermost end of the top rib formed as a flat thinning end portion pivotally connected with a pair of narrowing lugs centripetally pressed from two side walls of the U-shaped groove of the stretcher rib; and having an outer portion of the top rib formed as a flat thinning portion for pivotally connecting an inner end of the intermediate connecting rib, thereby forming a slim rib assembly for minimizing a folding volume of the rib assembly when closing the umbrella adapted for making a slim mini pocketable folding umbrella.

Abstract: An automatically spreading and collapsing umbrella includes a plurality of rib assemblies pivoted to a ferrule on a handle, and a plurality of stretcher assemblies. Each stretcher assembly is pivoted to a runner slidably sleeved on the handle to stretch or retract a respective rib assembly when the runner is moved. An anchored member has two ends journalled on a main rib of one of the rib assemblies, and a middle portion having an anchored site which is formed as a bent strip that is vaulted upwardly. A collapsing tension spring is retained between a connecting rod of one of the stretcher assemblies and the anchored site so as to define a collapsing line along an extending length of the spring. Stretching of the rib assemblies can extend the spring to store an elastic potential energy to facilitate collapsing of the rib assemblies.

Abstract: An automatic umbrella includes: a top rib and a stretcher rib each having a cross section of U shape or the like shape and made of light material including aluminum alloy, an outer rib gradually tapered outwardly and an auxiliary stretcher rib each having a cross section of circular shape or the like shape and made of composite or plastic materials having good resilience and mechanical strength to be respectively connected with the top rib and the stretcher rib, a flattened tensioning spring jacketed on the shaft and retained between a middle runner arid a lower runner having a cross section of the spring ring formed as rectangular shape for forming a slim umbrella shaft, and a top cap member firmly fixed on a top of the shaft, thereby providing an automatic umbrella having light weight, better resilience and strength, slim structure, and firmly fastened top cap.

Abstract: An improved umbrella frame comprises a stick having an upper sleeve which has an upper nest set on the topside thereof being installed on the stick. And below the upper sleeve, the stick is further installed a mid runner and a lower runner between which a spring is set. A pluralities of long ribs are radiated around the nest and each of which have a first end pivotally connected thereto. A plurality of short ribs are radiated around the mid runner and each of which have a firs end pivotally connected thereto, and a second end pivotally connected to the long ribs. Wherein, the short ribs are made of fiber material and are formed in a solid rectangular shape with the lateral edge being longer than the top and bottom edge.

Abstract: A simplified flat top umbrella includes: a central shaft (1) having an upper notch (11) formed on an upper portion of the shaft (1) and a lower runner (12) slidably held on the shaft (1), a top rib (2) pivotally secured to the upper notch (11), an outer rib (3) fixed to the top rib (2), a stretcher rib (4) pivotally connected between the lower runner (12) and the top rib (2), and a pulling rib (5) secured between the stretcher rib (4) and an outer portion (32) of the outer rib (3); whereby upon extending of the ribs having an umbrella cloth retained thereon for opening the umbrella, the top rib (2) and the outer rib (3) will be lifted to form a generally horizontal canopy and the outer portion (32) of the outer rib (3) will be pulled inwardly by the pulling rib (5) and the stretcher rib (4) to form a skirt portion generally perpendicular to the horizontal canopy, thereby providing a light compact flat top umbrella for a convenient carrying and operation.

Abstract: An umbrella comprising a central shaft having an upper end and a lower end with the lower end including a handle incorporates a plurality of pivotable members each having a first end pivotally coupled to an upper end of the shaft and being circumferentially spaced about the shaft and oriented generally parallel thereto when the umbrella is in a collapsed condition. A plurality of flexible members are operatively associated with corresponding ones of the pivotable members. The flexible members are each expandable into a generally hoop-shaped configuration adjacent another end of the pivotable members when the pivotable members are pivoted from a collapsed condition to an operative position. The open umbrella appears as a canopy stretched over a plurality of circumferentially spaced ribs with each rib terminating in a hoop-shaped member.

Abstract: A windproof umbrella includes: an upper cloth secured on an upper rib pivotally connected to a central shaft of the umbrella, a lower cloth secured on a lower rib pivotally connected to the central shaft and having a central opening circumferentially formed in a top portion of the lower cloth around the central shaft, each upper cloth provided with a control valve thereon for resiliently normally closing an aperture between the upper cloth and the lower cloth; and upon blowing of strong wind on the lower and upper cloths, the control valve will be opened to release the wind for preventing inversion of the umbrella.

Abstract: A windproof umbrella includes: an upper cloth secured on an upper rib pivotally connected to a central shaft of the umbrella, a lower cloth secured on a lower rib pivotally connected to the central shaft and having a central opening circumferentially formed in a top portion of the lower cloth around the central shaft, each upper cloth provided with a control valve thereon for resiliently normally closing an aperture between the upper cloth and the lower cloth; and upon blowing of strong wind on the lower and upper cloths, the control valve will be opened to release the wind for preventing inversion of the umbrella.

Abstract: The umbrella has a frame composed of a plurality of ribs, stretchers and a combined panel consisting of a main panel and a secondary panel, wherein, the area of the main panel is smaller than that of the fully expanded ribs of the frame, and the inner edge of the secondary panel matches the outer edge of the main panel. The main and secondary panels concentrically cover the frame, and a plurality of ropes are mounted between the inner edge of the secondary panel and the frame, which are used to increase spaces between the outer edge of the main panel and the inner edge of the secondary panel, and moreover, improve efficiency of air convection, save panel material and simplify manufacturing procedures.

Abstract: A foldable umbrella includes a post; a stationary hub secured to an upper end of the post; a canopy centrally secured to the stationary hub; a sleeve slidably mounted on the post; a plurality of radially oriented ribs secured to the canopy in equiangularly spaced relation, each rib having a radially inner end and a radially outward end; a plurality of foldable strut assemblies, each strut assembly connected between the sleeve and a respective one of the ribs, each strut assembly including a first strut having one end pivotally connected at a first pivot point to the sleeve and a second end pivotally connected to a respective one of the ribs at a second pivot point spaced radially outwardly from the radially inner end of the rib, a second strut having one end pivotally connected at a third pivot point to the stationary hub and a second end pivotally connected at a fourth pivot point to an intermediate point of the first strut, and a third strut having one end pivotally connected at a fifth pivot point to an in

Abstract: A swirling type fabric canopy is affixed on an upright mast which can be incrementally rotated on a base to protect a person in one position while the sun travels during daylight. The swirling type canopy can be rotated from right-handed shading to left-handed shading and collapsed when not in use or for portage. An optional semi-circular non-folding canopy can be added on top.

Abstract: An umbrella rib assembly includes: a top rib having a cross section of U shape and made of light material including aluminum alloy, an outer rib having a cross section of circular shape and made of composite or plastic materials having good resilience and mechanical strength to be connected at an outer end of the top rib, and a stretcher rib pivotally connected with the top rib, thereby providing an umbrella having light weight but having suitable resilience and strength.

Abstract: A stick umbrella capable of being opened and closed by one hand having a stem, a crown, a runner, main ribs, and stretchers constituting a frame; an elongated slide which is slidably arranged along the stem and carries at the upper end a notch member to which the struts pivoted to the stretchers are pivotally connected; a lever pivotally attached at one end to a collar which is attached to the lower end of the elongated slide and at the other end to the outer end of a radius rod, the inner end of the radius rod is pivoted to a handle, a compression spring being arranged between the crown and the notch for closing the umbrella, and another compression spring arranged between the runner and the lower end of the elongated slide for slightly opening the umbrella when the latch on the cloth is unfastened.

Abstract: In this invention an umbrella with a cover, preferably square or rectangular, is supported on a telescopic shaft by articulated ribs that extend from the shaft beneath the cover. The articulated ribs are connected to auxiliary ribs and both are controlled by guides and stabilizers that extend radially from a reciprocable transfer sleeve on the telescopic shaft and move the ribs and auxiliary ribs to fold the cover inside out as the transfer sleeve is lowered on the shaft, the shaft is shortened, and the umbrella is closed.

Abstract: A collapsible sunshade includes a frame and a top cover which is mounted on the frame. The frame includes a shaft which has an outer tube and an inner tube that is telescopically inserted into the outer tube. A runner assembly is sleeved on the outer tube. A main rib assembly is pivoted to a top end of the inner tube for mounting the top cover. A collapsible stretcher assembly is pivoted to the main rib assembly and is connected to the runner assembly. The runner assembly can cooperate with a bottom end of the inner tube so as to move the inner tube upward and outward from the outer tube simultaneously with the stretching of the main rib assembly. Preferably, the main rib assembly is collapsible, and has pivot connectors that impede the collapsing of the main rib assembly.

Abstract: An improved canopy structure of a bi-section foldable umbrella is provided with an integrally formed slide block having an upper slider and a lower slider. A fixing mount is integrally connected to the top of the upper slider. The fixing mount, the upper slider and the lower slider are connected to one end of positioning spreaders, extending spreaders and auxiliary spreaders respectively. A canopy is fixedly engaged with some of the spreaders. All the extending spreaders and the auxiliary spreaders are bound together in pairs by an inverted T-shaped member at the middle thereof . At the ends of each paired extending spreader and the auxiliary spreader is disposed a tri-point connector so as to permit an elongated rib downwardly extended from the connector. The periphery of a canopy can thus be vertically supported along the edge thereof for better shelter of a person under the umbrella.