Abstract: Provided is a portable compact umbrella including a case having an inner accommodation space and opened one side, a roller rotatably installed in the case, a support having a variable length and configured to support the case, and an umbrella part accommodated in the accommodation space by passing through an opening at one side of the case in conjunction with rotation of the roller, to reduce an accommodation volume and be easily accommodated and unfolded.

Abstract: Provided is an automatic umbrella. The middle rod structure comprises an outer sleeve; a movable sleeve; a first elastic element; a locating element; an adjustment element; and a long rod comprising a long rod upper end and a long rod lower end; wherein the long rod upper end is abutted against the adjustment element, and the long rod lower end is located inside the movable sleeve for limiting the first elastic element from moving along a direction perpendicular to the longitudinal direction.

Abstract: A wind-proof dual canopy structure with offset venting in both upper and lower canopies and with inter-canopy suspension structures, keeps the upper and lower vents properly aligned and blocks the perimeter of the lower vents so that rain cannot drip through these vents onto protected persons and/or objects. These inter-canopy suspension structures include elements which are themselves vented, allowing wind that would otherwise get trapped between the canopy layers to escape.

Abstract: A wind-resistant umbrella frame structure is applicable to an arrangement of dual canopies and includes a primary frame and a secondary frame. The primary frame has an inner end pivotally connected to a crown and an outer end connected to the annular lower canopy. The secondary frame is pivotally connected to the runner and has an opposite end pivotally connected to the primary frame. The primary frame includes an internal rib, an intermediate rib, an external rib, and a traction rib assembly, and also includes an intermediate rib return wire, an external rib return wire, and a collapse spring. The umbrella frame structure allows air flows to be readily conducted out and ensures the service life of the canopies.

Abstract: It is described a foldable articulated arm comprising a first rod-shaped element, a second rod-shaped element and a third rod-shaped element foldable one another and at least three stretching element of the rod-shaped elements, arranged to form a system of four-bar linkages, further comprising a plurality of joint elements of the rod-shaped elements and the stretching elements and having, at the opposite ends, a retaining mechanism for a respective combining with a tube and an umbrella sheet, wherein the rod-shaped elements, the joint elements, the stretching elements and the retaining mechanism are all made integral in a single piece of plastic material constituting the foldable articulated arm.

Abstract: Apparatus and associated methods may relate to a collapsible tree system having limbs which automatically pivot from a low-profile position while the tree is in a collapsed state to an in-use position when the tree is in an extended state. In an illustrative example, the system may include limb supports movably disposed along a central support. Movement of the limb supports closer together and further apart may cause the limbs to pivot to and from positions. For example, due to limb contact with an adjacent limb support, the limbs may be caused to pivot to the low-profile position. When no forcible contact is present between an adjacent limb support and limb, gravitational forces may permit the limbs to freely pivot to the in-use position. In an illustrative example, each limb support may include a nesting cup for receiving a proximal end of the limbs while in the stowed position.

Abstract: A folding umbrella and particularly one having multiple folds, is comprised of a support frame incorporating a hybrid rib typically located intermediate a main rib and a rear or outermost rib. The hybrid rib is formed of multiple sections composed of first and second materials which respectively provide the desired structural strength to reduce inversions of the umbrella to an acceptable minimum and provide the hybrid rib with the desired resiliency and flexibility to return the hybrid rib to its original, unstressed shape and thereby prevent permanent damage to the hybrid rib as well as adjoining frame elements of the umbrella. The thicknesses of the multiple sections and the relative sizes of the sections also significantly contribute to the capability of the hybrid rib to achieve the desired objectives of a compact, small, folding umbrella of reduced weight, and the ability to prevent permanent damage to the frame due to inversion.

Abstract: A central shaft control structure is provided for a self-opening/closing umbrella and is arranged in a handle of the umbrella for self-opening/closing of the umbrella, including a safety device composed of a reversal prevention wheel having a toothed surface, an operation bar comprising a pawl, and a barrel fit over the operation bar. The reversal prevention wheel comprises a safety rope wrapped therearound and having an end fixed to a third central shaft segment. When errors occur in the course of compression in closing the umbrella, the central shaft that is being compressed can be held in position, so that instantaneous spring back of the central shaft caused by an umbrella opening spring that is in a compressed condition can be prevented to ensure safety of operation and control of the self-opening/closing umbrella.

Abstract: An asymmetric umbrella includes a canopy, a shaft eccentrically disposed beneath the canopy, and a runner slidably mounted on the shaft and slidable between a first position, in which the canopy is collapsed, and a second position in which the canopy is extended. A canopy supporting frame includes rib assemblies each of which has a first end coupled to an apex of the shaft and a second end coupled to the canopy, wherein each of the rib assemblies further comprises a short rib assembly and a long rib assembly.

Abstract: The invention relates to an improved multi-folded umbrella having a reduced closed volume, which includes a shaft with a crown secured to its upper end, a slider slidably provided on the shaft, and rib sections pivoted to the crown and the slider consisting of struts, tensions ribs, and spokes. The rib sections of the frame are positioned in side-by-side relationship, either clockwise or anti-clockwise, when the umbrella is closed, wherein the umbrella can be two-folded, three-folded, four folded, five-folded, or more, and between the rib sections, various connecting assemblies are provided. Hence, the present umbrella can be used more conveniently and effectively.

Abstract: An oval umbrella system (10) for providing improved precipitation protection for individuals. The umbrella system includes a support member (20), a handle member (30) attached to an end of the support member, a collar (22) slidably positioned about the support member, a plurality of first rib linkages (40) extending from the support member, a plurality of second rib linkages (60) extending from the support member, and a covering (80) attached to the rib linkages (40), (60). The first rib linkages preferably have a greater extended length than the second rib linkages.

Abstract: An umbrella that includes a canopy, a shaft eccentrically disposed beneath the canopy, a runner slidably mounted on the shaft and slidable between a first position, in which the canopy is collapsed, and a second position, in which the canopy is extended, and rib assemblies forming a canopy supporting frame. Each of the rib assemblies are coupled to the apex of the shaft at a proximal end and to the canopy at a distal end. The rib assemblies include a short main rib assembly having a deployment arm and a rib. In the short main rib assembly, the deployment arm is coupled to the runner and to the rib, and the rib is coupled to the shaft apex and to the deployment arm. The rib assemblies also include a long main rib assembly having a deployment arm, a proximal rib, a connecting arm, and a distal rib.

Abstract: The invention relates to an improved multi-folded umbrella having a reduced closed volume, which includes a shaft with a crown secured to its upper end, a slider slidably provided on the shaft, and rib sections pivoted to the crown and the slider consisting of struts, tensions ribs, and spokes. The rib sections of the frame are positioned in side-by-side relationship, either clockwise or anti-clockwise, when the umbrella is closed, wherein the umbrella can be two-folded, three-folded, four folded, five-folded, or more, and between the rib sections, various connecting assemblies are provided. Hence, the present umbrella can be used more conveniently and effectively.

Abstract: The invention relates to an improved rib structure for using in a four-folded umbrella. The character of the present invention includes a solid first rib, a solid second rib, a solid third rib, and a solid tail rib. Accompanying with branch ribs and elastic ribs, the assembled umbrella can have a small closed volume by use of every rib to be closed to a shaft of the umbrella. Hence, the present umbrella can be used more conveniently and effectively.

Abstract: The invention relates to an improved rib structure for using in a three-folded umbrella. The character of the present invention includes a solid first rib, a solid second rib, and a solid third rib. Accompanying with a branch rib and an elastic rib, the assembled umbrella can have a small closed volume by use of every rib closed to a shaft of the umbrella. Hence, the present umbrella can be used more conveniently and effectively.

Abstract: The invention relates to a rib structure of a two-layer cover umbrella, which mainly includes an elastic rib having an inner folded end. A connector of a related primary rib of the umbrella is provided with an aperture, for that the inner folded end of the elastic rib is penetrated into the aperture and connected with a lateral rod of the connector. The elastic rib will be then extended outward alone the upper surface of the primary rib smoothly for connecting the upper cover and providing a utilized umbrella with two covers.

Abstract: The invention relates to a foldable umbrella frame having six ribs, wherein the first rib, the second rib, the third rib, and the fourth rib are formed to be solid rods with outer flat portion. The ribs are pivoted to form a frame. Branch ribs have inner hooks to connect with outer flat portion of respective rib that provides a small volume of the umbrella in closed state for facilitating carrying by users.

Abstract: A wind-proof umbrella rib structure comprises a main rib, a plurality of sub-ribs and an umbrella cloth. An annular upper nest is at a top of the main rib and a lower nest is at a middle section of the main rib. Each sub-rib includes an upper rib, a lower rib, a tension rib, a driven rib, a connecting rib; and a pivotal piece. Each pivotal piece has a first slot and a second slot. When one end of the lower rib is pivotally to a tension rib, a stud passes through the lower rib, the first slot and the tension rib so as to fix the lower rib. The second slot serves to connect the first and second driven means. The umbrella cloth includes a first cloth and a second cloth. The first and second cloths are overlapped. The overlapped portions are formed with gaps as flow guides.

Abstract: The rib assembly for multi-foldable umbrella includes an inner rib, a middle rib, an outer rib and a secondary rib. Wherein, the secondary rib and the front strut are solid shafts and the pivot joint of the secondary rib and the inner rib is not necessitated to be flat in shape. Therefore the supporting strength of the secondary rib and the front strut against bending are increased, and the volume thereof is also effectively reduced for further significantly decreasing the volume of the collapsed umbrella as a whole, thereby bringing better convenience for carrying.

Abstract: The present invention relates to a structure for automatic opening umbrella, which mainly includes a runner having a middle connector and a lower connector. A main rib of umbrella frame has its inner end to connect with the upper joint. A supporting rib has its inner end to connect with the middle connector of the runner and has its outer end to connect with middle position of the main rib. A spring has its inner end to connect with the lower connector and has its outer end to connect with the outer end of the supporting rib. The spring will be tensioned as the umbrella is folded to provide a recovery force for automatic opening the umbrella.

Abstract: An umbrella includes a tubular runner slidably sleeved on a stem between upper and lower positions. A tubular upper end portion of the stem defines a plurality of angularly displaced slots such that anchored segments of an anchored wire are exposed therefrom for pivotally mounting anchoring ends of a plurality of ribs. The ribs have distal ends disposed at an underside of a canopy for supporting the canopy in spread-out and collapsed positions when the runner is moved to the upper and lower positions, respectively. The ribs can be brought into close proximity of the stem after retraction for facilitating storage and carrying.

Abstract: A multiple-fold automatic umbrella includes: a central shaft, a rib assembly including a top rib, a stretcher rib, at least an intermediate rib and a tail rib pivotally connected one another and pivotally connected to the central shaft, an opening spring, a plurality of closing springs and a control device for controlling the opening and closing of the umbrella; with the intermediate rib formed by extrusion molding process to have a cross section of two-lobe shape having an inner joint and an outer joint respectively connected on opposite ends of the intermediate rib for pivotally connecting inner and outer ribs of the rib assembly for obtaining a light-weight and proper strength of the rib assembly.

Abstract: An umbrella includes a number of strut assemblies each having a beam and a spring rod pivotally coupled between a strut and a rib. The spring rod includes a middle portion slidably coupled to the beam. A pole is slidably secured to the beam and coupled to the middle portion of the spring rod. For example, the pole includes an aperture for receiving the middle portion of the spring rod and for allowing the middle portion of the spring rod to be loosely coupled to the beam and for preventing the spring rod from being bent or damaged by the beam.

Abstract: A rib assembly for multiple-fold umbrella includes: a top rib pivotally secured to an upper notch on a top of a central shaft, a stretcher rib pivotally secured between the top rib and a lower runner slidably held on the central shaft, an intermediate rib pivotally securable to the top rib or the stretcher rib, and a tail (or outer) rib pivotally connected to the intermediate rib; wherein either the top rib or the stretcher rib is formed as a lotus-shape rib when opening the umbrella; and upon opening of the umbrella, the lotus-shape ribs will be arcuately bent to store their resilience; and upon closing of the umbrella, the lotus-shape ribs will restore to release their resilience energy to automatically close the rib assembly. The rib assembly plays double duties both for supporting the umbrella cloth on the ribs and also for serving as “closing springs” for automatically closing the umbrella by eliminating the installation of closing springs on the rib assembly.

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 multiple-fold automatic umbrella includes: a central shaft; a rib assembly pivotally secured to an upper notch and a lower runner on the central shaft; an opening spring and a plurality of closing springs for opening or closing the umbrella; and a control device including a push button, an opening controller having an upper latch for controlling the opening of the umbrella, a closing controller including a lower latch for controlling the closing of the umbrella, and a multiple-fold rope respectively sinuously wound on a plurality of rollers which are respectively mounted on an upper holder formed on an upper portion of the central shaft adjacent to the upper notch and on a lower holder formed on the lower runner for smoothly winding the rope on the rollers for enhancing a smooth opening or closing operation of the umbrella.

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: 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 multiple-fold automatic umbrella includes a penta-fold rope having its inner rope end secured with a locking head locked in a grip of a central shaft and defining a first rope section of the penta-fold rope from the locking head through an interior of the shaft to an upper guiding roller rotatably mounted in an upper portion of the shaft; a second rope section of the penta-fold rope from the upper guiding roller to a first lower guiding roller rotatably mounted on a lower runner slidably held in the shaft; a third rope section of the rope from the first lower guiding roller towards at least an uppermost guiding roller rotatably mounted in a top portion of the shaft; a fourth rope section from the uppermost guiding roller towards a second lower guiding roller rotatably mounted on the lower runner opposite to the first guiding roller; and a fifth rope section from the second lower guiding roller towards an outer rope end secured to an upper notch formed on the top of the shaft, thereby providing a rope dynami

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 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.