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: A ventilated umbrella includes a support frame forming a fully expand surface when it is fully expanded, a first canopy secured on the inner area of the fully expanded surface of the support frame and having an outer edge, and a band-shaped second canopy secured on the outer area of the fully expanded surface of the support frame and slightly overlapped by the first canopy. The second canopy has an inner edge located under the outer edge of the first canopy, and multiple extensions strips each extending inward from the inner edge of the second canopy, and each secured to the support frame. In such a manner, the gap between the outer edge of the first canopy and the inner edge of the second canopy is enlarged by stretching each of the extension strips, thereby enhancing the ventilating effect.

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 disposable umbrella having an elongated handle member for supporting a foldable canopy. A plurality of rib members are positionable along the underside of the canopy. A collar member is slidable along the handle and is registrable with a cam surface on the rib members for urging the rib members to open the canopy. The collar member is press-fit into friction-locking engagement with the rib members to releasably retain the canopy in the open position. The collar member, the plurality of rib members and the canopy are assembled on the handle member and secured by an end cap that is lockingly engageable with the handle member.

Abstract: A conical tension membrane structure capable of resisting high winds in which the fabric is tensioned both radially and tangentially by radial support arms operable to provide tension peripherally by radial support arms, operable to provide tension peripherally of the fabric and being foldable to a closed position, with cover supported by radial cables, and arms held down by hold-down cables.

Abstract: A double sunshade includes a main shank, a left subordinate sunshade, a right subordinate sunshade and a canopy. The main shank has a main cap atop and a main runner fitted movably around the main shank, main spreaders pivotally connected to the main runner, and main ribs pviotally connected to the main inside cap. The main ribs cross with the main spreaders at pivotal points and then extends further outward to be pivotally connected to subordinate inside caps and subordinate runners of the left and the right subordinate sunshades. Then the subordinate runners of the left and the right subordinate sunshades may be moved up and down for spreading or collapsing the subordinate spreaders and the subordinate ribs when the main runner is moved up and down, with a canopy spread or collapsed, too. And the canopy has a zipper or a Velcro band sewn at its peripheral edge for connecting a double sunshade to another for enlarging the dimensions for shading.

Abstract: A standing umbrella includes an upright pole, a top affixed to the upper end of the upright pole, a slide member displaceably mounted on the upright pole, at least four tensioning struts having free outer ends and inner ends linked to the slide member at respective pivots, a flexible cover affixed to the tensioning struts, and flexible carrier elements extending between the top and the tensioning struts. Displacement of the slide member towards the lower end of the upright pole moves the tensioning struts into positions in which they almost extend perpendicularly to the upright pole, diametrically opposite ones of the tensioning struts enclosing an angle of less than 180.degree., whereby the umbrella is opened, and displacement of the slide member towards the upper end of the upright pole causes the umbrella to be closed. A flexible member extends between the tensioning struts and is affixed thereto for limiting the opening movement of the tensioning struts.

Abstract: An umbrella of the type having a canopy that is fastened to a folding radial frame with hinged ribs radiating from a center pole, and a sliding catch which pivotally supports the braces of said ribs is disclosed. Secured between the sliding catch and the ribs is the reinforcing guy assembly. This assembly consists of elongated strings having its inner ends connected to said sliding catch and its outer ends connected to the outer ends of said ribs, and suspender means having its lower ends connected to said elongated strings and its upper ends connected to said ribs.

Abstract: The present invention is essentially comprised of a deck furniture mounting stand which is removably attachable to a deck's boards. By loosening or tightening nuts threadingly engaging a pair of mounting rods, the stand may be removed from, or affixed to, respectively, a deck. The stand of the present invention includes a base portion having an upper surface, a lower, deck contacting surface, and a predetermined periphery defined by a continuous edge. A cylindrical, pole (umbrella pole for instance) receiving member having a bored hole formed therein for reception of the pole is positioned in centrally, upwardly extending relation to the upper surface. Further included are two apertures formed through the base on opposite sides of the pole receiving member to receive the mounting rods which secure the stand to the decking.

Abstract: A joint mechanism having a movement between relative members about a center of rotation located at a point where a first line extends from one of the members intersects a second line extending from the opposite member is disclosed. Multiple joint mechanisms may be aligned together along with common lines being the axis of rotation of each joint mechanism to provide a concentric spherical joint mechanism. Concentric spherical joint mechanism may be used to assemble truss frame structures.

Abstract: A frame for an umbrella has a shaft in two parts 4, 5 connected by a joint 1. Stretchers 6 extend from a runner 2 on the lower shaft part 5 to attachment points on the ribs. A sleeve 10 is located loosely on the upper shaft part so that it can slide over the joint and lock it in the straight configuration. To provide easy access to the sleeve in order to be able to lift it off the joint and allow the shaft to tilt, the runner 2 has an operating rod 30 which allows a user to lift the sleeve without putting his fingers through the stretchers 6.

Abstract: The apparatus has several carrying bars which can be spread in radial manner from a central headpiece (2) and several shielding flat elements (17, 18), which are in each case fixed between two carrying bars. The multipart construction of the carrying bars from longitudinally displaceable, interengaging bar elements (4, 5) makes is possible to slide flat elements (17, 18) over one another, so that the apparatus, when in use, can provide different shielding surface sizes starting from a compact, slid together and collapsed form. By sliding over one another limited light-transmitting flat elements, it is possible to individually adjust the shielding action.

Abstract: The safety umbrella of the invention employs a handle, wherein a flexible canopy is mounted in a reciprocal manner about the handle, with the canopy extending from a handle end portion from which an annular array of radial ribs project. The radial ribs support the canopy in the opened and closed positions, with the radial ribs terminating in generally U-shaped free ends that are maintained in alignment by spaced annular rails of continuous construction.

Abstract: A foldable tent includes a canopy and a collapsible frame assembly for stretching the canopy. The frame assembly includes a crown, a plurality of curved rib units, a slider and a plurality of stretcher members. The crown has a vertically extending passageway formed therethrough. The curved rib units have upper ends pivoted to and around the crown, and lower ends fastened to the periphery of the canopy. The slider has a base member and a retainer which extends upwardly from the base member. The retainer is extensible to pass through the passageway when the frame assembly is collapsed, and is engageable with the crown when the retainer expands. The stretcher members have first ends pivoted to and around the base member, and second ends pivoted respectively to the rib units for supporting the rib units to stretch the canopy. The stretcher members are connected to one another to form a reinforcement network for supporting the rib units.

Abstract: A pole extension system for rigidly and tightly connecting an extension pole to a main pole. The main pole has a cylindrical end portion into which a T-nut is securely mounted coaxial with the pole axis. The extension pole has a cylindrical end portion forming an alignment shaft having a diameter that is smaller than the diameter of the main portion of the extension pole, such that an abutment shoulder is formed where the pole end portion meets with the extension pole. A bolt is mounted at the end of the alignment shaft and adapted for being screwed into the T-nut as the main pole and the extension pole are rotated relative to each other. A stabilizer means is mounted at the end portion of the main pole and includes a long tubular alignment sleeve having a length which extends past the end portion of the main pole and receives therein the alignment shaft in a close fitting relationship.

Abstract: In the case of an umbrella, in particular a stand umbrella, sunshade, garden umbrella and the like, having a framework, a roof construction and an umbrella roof, in which the roof rods (5) are articulated on a pole part (2), which is displaceable telescopically in relation to the stand tube (1) and bears a crown (3), and displaceable along the stand tube (1) is a runner (4), on which supporting struts (6) articulated on the roof rods (5) act in a jointed manner, crown (3) and runner (4) moving oppositely upon opening and closing of the umbrella, for simpler opening of the umbrella and tensioning of the umbrella roof there is provided an auxiliary strut (8), which is jointedly arranged above the runner (4) between umbrella pole (1) and at least one roof rod (5), and the runner (4) is provided with a locking device (12), by which said runner can be arrested in its upper position and the umbrella roof can be tensioned.

Abstract: An umbrella member includes a slide slidably mounted about a tubular support shaft. The shaft includes a collar thereon, with the collar including plural pairs of canopy ribs pivotally mounted to the collar, with each of the canopy ribs including a slide housing slidably mounted to the ribs, with each slide housing including support ribs mounted to the slide housing and to the slide. The canopy ribs include a canopy member secured thereto, wherein the slide is arranged in cooperation with the slide housings to reverse the arcuate orientation of the canopy ribs to effect reversal of orientation of the canopy ribs from a downward to an upward position permitting ease of access of the umbrella structure within a limited environment, such as an automotive vehicle.

Abstract: An umbrella includes a substantially inextensible cord which is mounted by couplers to the free ends of the ribs of the umbrella such that the cord forms a closed loop disposed radially inwardly of the ribs of the umbrella. The cord braces the umbrella against inversion, and the couplers can be designed to allow the cord to be retrofitted to an existing umbrella.

Abstract: An umbrella comprises a foldable frame and a web provided having a substantially circular central portion and a substantially annular skirt portion continuous with the central portion. The frame comprises a rigid support shaft, a plurality of ribs pivotably attached to the support shaft at one end thereof, a runner element slidably attached to the shaft, and a plurality of stretcher arms each pivotably fastened at one end to the runner element and at an opposite end to a respective one of the ribs. In addition, the frame includes a plurality of skirt support members each pivotably attached to a free end of a respective one of the ribs, and a plurality of pulling members each pivotably attached at one end to a respective one of the stretcher arms and at an opposite end to a respective one of the skirt support members. The skirt portion of the cover or web is fastened to the skirt support members.

Abstract: The invention relates to a collapsible umbrella having at least one pair of anopy rod parts (1,2), which extend alongside one another and are guided so as to be displaceable on one another, within each linkage of the canopy-supporting linkage frame. One of the canopy rod parts (2) is composed of wire, and guided on the other rod part (1) by means of a bight (2e) of the wire which embraces the other rod part and is formed with hooks (2f,2g) which can be spread to allow the bight to be fitted transversely on the other rod.

Abstract: An umbrella includes a substantially inextensible cord which is mounted by couplers to the free ends of the ribs of the umbrella such that the cord forms a closed loop disposed radially inwardly of the ribs of the umbrella. The cord braces the umbrella against inversion, and the couplers can be designed to allow the cord to be retrofitted to an existing umbrella.

Abstract: An umbrella reversal prevention structure including a plurality of flexible guys having outer ends connected one each to different ones of the resilient ribs of the umbrella. The inner ends of the guys are connected to the shaft of the umbrella adjacent its outer end. The guys are provided with adjusting structure for adjusting the length thereof to provide a preselected tension in each guy for effectively preventing undesirable displacement of the resilient rib outer ends outwardly from the normal disposition thereof in the open bowed configuration of the umbrella, thereby to prevent reversal of the umbrella structure as from a high wind force directed outwardly thereagainst.

Abstract: A reenforcing annular ring is provided along the outer edge of the inside of the canopy of an umbrella. The reenforcing ring is made of a flexible, cloth-like material with its outer portion fastened to the panels of the canopy. The inner portion of the reenforcing ring is fastened to a ring of strong flexible rope that secures the reenforcing ring and the panels of the canopy against outward flexing in a high wind.

Abstract: An umbrella is convertible between an expanded and contracted position to adjust the area of coverage thereof when the umbrella is in the opened condition. The umbrella is formed with a pair of sticks which extend from the handle thereof with the sticks being pivoted at the handle for movement between a spread position whereby the sticks may be placed in a generally V-shaped configuration, and a position wherein the sticks are brought together to be generally parallel with each other. Each stick includes a slider which may move relative to the stick in order to effect opening and closing of the canopy of the umbrella, which canopy is generally supported upon the ends of the sticks by ribs. With the sticks in a generally parallel position, a smaller area of coverage is provided by the umbrella.

Abstract: An umbrella is convertible between an expanded and contracted position to adjust the area of coverage thereof when the umbrella is in the opened condition. The umbrella is formed with a pair of sticks which extend from the handle thereof with the sticks being pivoted at the handle for movement between a spread position whereby the sticks may be placed in a generally V-shaped configuration, and a position wherein the sticks are brought together to be generally parallel with each other. Each stick includes a slider which may move relative to the stick in order to effect opening and closing of the canopy of the umbrella, which canopy is generally supported upon the ends of the sticks by ribs. With the sticks in a generally parallel position, a smaller area of coverage is provided by the umbrella.

Abstract: A three-stage collapsible umbrella of the type which has rib assemblies each comprising a main rib, support rib, roof rib and auxiliary support rib, which are arranged and mutually related so that the ribs are stretched and closed automatically in response to umbrella opening and closing operations, additional tip ribs pivotally connected to the ends of roof ribs which form, when the umbrella is opened, extensions of roof ribs and is folded, when the umbrella is closed, alongside the roof ribs, and elongate sliding means which are operatively connected to the rib assemblies and tip ribs so that the tip ribs are stretched automatically by the pulling action of the sliding means when the rib assemblies are stretched. Each of the elongated sliding means is supported so that the sliding means is independently movable by a small distance along the lengthwise direction thereof.

Abstract: A shortenable umbrella with blades carrying the umbrella canopy, the blades being shortenable by telescoping and/or folding, of which the innermost blade parts are pivoted on a crown secured on a shortenable rod assembly and respectively are horizontally pivotable by means of at least one fork by means of at least one slider, whereby each outermost blade part is hinged foldable onto the adjacent blade part by means of a control rod which acts on an extension of the outermost blade part. The inner-lying end of each control rod surrounds the fork associated therewith by means of a guide opening which is large in area with respect to the cross-section of the fork, the guide opening making possible a displacement of the inner-lying end of the control rod in the longitudinal direction of the fork and/or of the control rod.

Abstract: A shortenable umbrella with frame or blade parts carrying the umbrella canopy in opened condition, the frame parts being shortenable at least by a factor of two by telescoping or folding, of which the innermost parts are pivoted on a crown secured on a shortenable rod assembly and are horizontally pivotable by means of at least one slider by means of at least one set of forks, whereby each outermost blade part is hinged foldable on the adjacent blade part by means of a control rod which acts on an extension of each outermost blade part. A control piece is formed as a slide hinge which is displaceably guided on the fork, the slide hinge being articulated on the middle hinge by means of a connection portion spaced from the articulation point of the fork. The inner end of the control rod is articulated pivotally on the control piece, the movement of the fork actuating the control piece.

Abstract: A shortenable umbrella with blades carrying the umbrella canopy in opened condition, the blades being shortenable at least by a factor of two by telescoping or folding, of which the innermost blade part is pivoted on a crown secured on the shortenable rod and are pivotable by means of at least one fork by means of at least one slider, whereby the outermost blade part is hinged foldable on the adjacent blade part by means of a control rod which acts on an extension of the outermost blade part. The umbrella is characterized in that the inner end of the control rod engaging directly and positively without friction or slipping on the outermost blade part is pivotably fastened to a slide hinge, which slide hinge is displaceably disposed on the middle blade part in the vicinity of the middle hinge and is articulated play-free on the fork by means of a short connecting rod.

Abstract: A vented metal umbrella kit comprising a pair of substantially diametrically divided, prefabricated canopy half-sections, each half-section of which is prefabricated of a plurality of elongated sheet metal channel members tapered from end to end and secured in relatively side to side, interstraddling, fan-like relative disposition, a vertical support structure having a support arm adjustably secured at one end and a support disc removably attachable to the outer end of the support arm, means securing the umbrella half-sections in depending relation about the support disc, and a cone member of greater diameter than the support disc removably securable over the support disc and the attached end portions of the canopy half-sections assembled thereto.

Abstract: This disclosure relates to a large shelter standing umbrella including a tubular support having upper and lower end portions, a slide member in telescopic relationship with said tubular support, rack and pinion means for elevating and lowering the slide member relative to the tubular support, spokes pivotally connected at one end thereof to an upper end portion of the slide member and supporting struts pivotally connected at opposite ends to said spokes and said tubular support.

Abstract: A telescopic umbrella is provided; the umbrella has a telescoping umbrella stick, with a runner sliding thereon with stretchers running from the slide; at the outer ends of the stretchers are dome ribs, above each of which is located an auxiliary link running approximately parallel therewith, one end of each auxiliary link being hinged to a dome rib while the other end is hinged to a strut; the strut running, when the umbrella is in an open configuration, obliquely upwards from the stretcher towards the umbrella stick, and a control link running from each stretcher approximately parallel with an inner dome rib part, the outer end of the control link serving to control the folding motion of the outer dome rib part in dependence on the movement of the umbrella runner.

Abstract: A folding umbrella of the type in which a lower section closes upon an upper section, as both these sections close upon the umbrella rod, and wherein this closing movement is automatically achieved, i.e. is the result of articulating or pivotal movement of the umbrella ribs, rather than being movement that must be manually imparted.

Abstract: A conventional umbrella has three hooks mounted upon each of its downwardly extending ribs. The first hook is located at the bottom of the rib. The second hook is located at the connection point of the rib and one of the elongated struts used to open and close the umbrella. The third hook is located on the same rib intermediate the first and second hooks. A flexible cable is attached to the first hook, passes or extends through the second and third hooks and is then attached to the center pole of the umbrella.