Abstract: A method of manufacturing loading plane border frame tubes for chairs utilizes continuous roll-forming processes to roll a base material to form loading plane border frame tubes for use on chairs. The processes include: transport a steel sheet to a roller leveler for flattening; then roll the steel sheet through a first roller calender, a second roller calender, a third roller calender, and a fourth roller calender to form a semi-finished tube; send the semi-finished tube to a high frequency generator for welding and soldering at high temperature; trim the semi-finished tube in a trimming machine; and roll the semi-finished tube through a fifth roller calender to form a finished tube of a selected shape for making border frames of loading planes of the chairs.

Abstract: An adornment for mounting a crank which is to control extension and folding of an umbrella includes a first shell located between the umbrella shaft and a crank arm of the crank, and a second shell encasing another side of the umbrella shaft and matching and engageable with the first shell. The first and second shell have respectively a matching symmetrical first coupling section and a second coupling section to engage with a matching first fastening cap and a second fastening cap movable on the umbrella shaft for a selected displacement to form a completed adornment for the crank.

Abstract: A tent frame includes post sets located at four ends. Every two neighboring post sets engage respectively with a first linkage rod set and a second linkage rod set. The first linkage rod set of one post set and the second linkage rod set of a neighboring post set are pivotally engaged with each other through a first driven rod set and a second driven rod set which in turn are pivotally engaged with each other through toggle joints in a cross and staggered manner. There is a center pole located in the center of the tent frame engaging with four passive bar sets. Each of the passive bar sets attaches to the juncture of the first and second driven rod set. The first and second linkage rod sets, the first and second driven rod sets, and the passive bar sets are pivotally engaged with one another through toggle joints, and are movable by the post sets for extending or folding the tent frame.

Abstract: A folding chair with safety latch device. The device includes an anchor unit which has two ends pivotally engaged with a rear leg and a backrest bracket, and a slide unit coupled with the rear leg. The anchor unit and the slide unit have respectively a latch finger and a latch opening corresponding to with each other to form a latched relationship. The slide unit further has a release opening to allow users to undo the latched relationship only through a tool such that a child sitting on the chair may be prevented from falling down resulting from abrupt folding of the chair caused by incidental release of the latched relationship.

Abstract: A safety latch device for children folding chairs includes an anchor unit which has two ends pivotally engaged with a rear leg and a backrest bracket, and a slide unit coupled with the rear leg. The anchor unit and the slide unit have respectively a latch finger and a latch opening corresponding to with each other to form a latched relationship. The slide unit further has a release opening to allow users to undo the latched relationship only through a tool such that a child sitting on the chair may be prevented from falling down resulting from abrupt folding of the chair caused by incidental release of the latched relationship.

Abstract: An improved table frame for fastening loading members includes a fastening section extending from a table frame and a plurality of anchor elements fastened to the table frame at locations corresponding to the fastening section. Each anchor element has a first anchor ledge fastened to the table frame and an anchor flange opposing the fastening section to form a housing space therebetween. The housing space has a height matching the thickness of a loading member for holding the loading member. The anchor elements are fastened to the table frame through fasteners thereby allow the loading member held securely on the table frame.

Abstract: An improved folding chair comprises two support frames and toggle joint bars bridging the two support frames about an axis in a cross and staggered manner to form a seating zone. The two opposing inner sides of the front post and the rear post of the support frames have respectively a hollow coupling sleeve mounted thereon to couple with two ends of linkage bar. The coupling sleeve has an extending stepwise pivotal neck to couple with a tubular rod to attach the toggle joint bars such that the toggle joint bars are turnable about the axis to turn the tubular rod about the pivotal neck to allow the support frame and the toggle joint bars to fold toward one another.

Abstract: A dual row outdoor leisure rocking chair. The chair includes two rocking chairs each having a main frame with two foot supports linked by a linking bar at the bottom side. The main frame hangs a swingable loading bracket thereon. The loading bracket has two bottom sides each engaged with a linkage rod. A top bracket is mounted at the top end of the main frame. The top bracket has a coupling section formed at one end thereof. The two rocking chairs are opposite to each other and swingable synchronously in a coupled fashion, and may be assembled easily.

Abstract: An improved folding chair includes two side frames each having a front leg, a rear leg, and a linkage bar bridging the front leg and the rear leg, and a first loading bracket and a second loading bracket. The linkage bars are coupled respectively with a tubular rod which is turnable on the linkage bar. The tubular rods respectively attach to a first and a second toggle bar which are pivotally engaged on a toggle joint. The first and the second loading bracket have respectively a first side bar and a second side bar which are pivotally engaged with the first and the second toggle bar in a cross and staggered manner. The first and the second side bar have respectively one end engaged with each other on another toggle joint, and connect respectively to a first loading bar and a second loading bar to form a seating zone.

Abstract: An improved fastening structure for fastening a table top (1) and a leg frame (2) includes an anchor element (11) fixedly attached to the table top (1), and a displacement element (22) coupled to the leg frame (2) and movable thereon for engaging with the anchor element (11) through a fastener (3) such that the table top (1) is detachable from the leg frame (2) to form a smaller size to facilitate storing and transportation.

Abstract: A simple safety fastening latch for leisure chair comprises a slidable latch member mounted on an upper tubular portion of a foldable leg and a pivotal member fastened to a lower tubulare portion of the leg. The latch member has an inside wall which has a plurality of first ridges formed thereon. The pivotal member has a tongue section formed at an upper edge thereof. The tongue section also has a plurality second ridges formed thereon. When the latch member is slid to the tongue section, the first ridges will engage with the second ridges to enable the leisure chair be positioned securely.

Abstract: A folding structure for chairs comprising a front support, a first loading member, a rear support, a second loading member and two armrests pivotally engaging with one another to form a folding chair that may be folded or extended rapidly. When the chair is folded, the rear support is located in the first loading member and the first loading member is located in the front support, and the front support and the two armrests are folded towards each other, and the first loading member and second loading member are folded towards each other. The resulting folding chair has a shorter length and smaller thickness, and makes carrying and storing more convenient.

Abstract: An improved folding chair comprises two side frames each having a front leg, a rear leg, and a linkage bar bridged the front leg and the rear leg, and a first loading bracket and a second loading bracket. The linkage bars are coupled respectively with a tubular rod which is turnable on the linkage bar. The tubular rods respectively attach to a first and a second toggle bar which are pivotally engaged on a toggle joint. The first and the second loading bracket have respectively a first side bar and a second side bar which are pivotally engaged with the first and the second toggle bar in a cross and staggered manner. The first and the second side bar have respectively one end engaged with each other on another toggle joint, and connect respectively a first loading bar and a second loading bar to form a seating zone.

Abstract: An improved side frame for loading planes of tables and chairs comprises a frame having a loading section which has one end extended to form an extended section which in turn connects an eave section. The eave section and the loading section forms an anchor section therebetween for holding loading members to form a loading plane for a table or a chair to support the weight of people or goods.

Abstract: A method of manufacturing loading plane border frame tubes for chairs utilizes continuous roll-forming processes to roll a base material to form loading plane border frame tubes for use on chairs. The processes include: transport a steel sheet to a roller leveler for flattening; then roll the steel sheet through a first roller calender, a second roller calender, a third roller calender, and a fourth roller calender to form a semi-finished tube; send the semi-finished tube to a high frequency generator for welding and soldering at high temperature; trim the semi-finished tube in a trimming machine; and roll the semi-finished tube through a fifth roller calender to form a finished tube of a selected shape for making border frames of loading planes of the chairs.

Abstract: An improved tent frame includes post sets located at four ends. Every two neighboring post sets engage respectively with a first linkage rod set and a second linkage rod set. The first linkage rod set of one post set and the second linkage rod set of a neighboring post set are pivotally engaged with each other through a first driven rod set and a second driven rod set which in turn are pivotally engaged with each other through toggle joints in a cross and staggered manner. There is a center pole located in the center of the tent frame engaging with four passive bar sets. Each of the passive bar sets attaches to the juncture of the first and second driven rod set. The first and second linkage rod sets, the first and second driven rod sets, and the passive bar sets are pivotally engaged with one another through toggle joints, and are movable by the post sets for extending or folding the tent frame.

Abstract: A chair folding structure comprises two handles being divided into two pivotal sections for being assembled with two front and rear chair legs; each of the rear chair leg being firmly secured to a first and a second axial connecting portion; a first shaft being axially connected to the axial covers connected with two connecting rods and sliding covers movable along the rear leg; a third axial connecting portion is installed on the sliding covers adjacent to the axial connecting covers; a back frame being assembled between the two handles; the back frame having two lateral rods assembled to the third axial connecting portion and a first joint rod set connected to the lateral rods. A force is applied to the first joint rod set to drive the two lateral rods to push the third axial connecting portion. Thereby, the sliding cover moves along the rear leg. Meanwhile, by the front leg, the driven rod is rotatable to drive the front chair leg by pivotally connecting the second axial means to move toward the rear leg.