Abstract: An apparatus for mounting a table leg to a tabletop is provided. The apparatus may include a base. The apparatus may include a bracket. The apparatus may include a first support. The apparatus may include a second support. The base may be mounted to the tabletop via first holes defined in the base. The table leg may be mounted to the bracket. The bracket may include a U-shaped channel. The bracket may include a first wing. The bracket may include a second wing. The U-shaped channel may define a second hole to receive a bolt included in the table leg. The first wing may extend from an end of the U-shaped channel. The second wing may extend from an opposite end of the U-shaped channel. The wings may include third holes to receive screws to be mounted into the table leg. The supports may connect the base to the bracket.

Abstract: A tripod has three adjacent telescopic legs with identical locking mechanisms connected to a handle located above the central support element. The handle actuates the locking mechanisms simultaneously and independently of one another, whereby the legs can be telescopically adjusted from the free state to the locked position in the desired position when unfolding or folding the tripod. Locking mechanisms provide stability when loading the tripod. The telescopic legs of the tripod are pivotally connected to the central support element, so the different angles of the legs do not affect the effective operation of the locking mechanisms.

Abstract: Tripods and other support componentry for cameras, lighting and other equipment including a convertible tripod selfie-stick with dog-legged tripod legs collapsible together to form a singular selfie-stick shaft, foldable couplers on the tripod legs for optional attachment of supplemental feet thereto, a yoke body with a threaded collar that both tightens a ball and socket joint of each tripod leg and anchors a secondary tethering of each leg, a string-of-pearls latching mechanism for providing such secondary tethering of other components, a magnetic basal of lobe-shaped footprint and composite construction, a squeeze lever lock for telescopic tubes of a tripod leg or the like, a slidable ring coupler displaceable along a tripod leg or other shaft and lockable thereto via a tightenable collet, a rock-and-dock accessory mount for a tripod leg or the like, and a smartphone/tablet holder and cooperating case with a ball and socket connection.

Abstract: A magnet assembly for a debris collection tool includes first and second annular end bands, between which is disposed an annular arrangement of magnets. The magnet assembly includes a plurality of bridges, each bridge disposed between the first and second annular end bands and between circumferentially adjacent magnets of the annular arrangement of magnets. The first and second annular end bands are substantially of a non-magnetic material, and the bridges are substantially of a magnetic material.

Abstract: A foldable table includes a top plate, two leg units, and a telescopic support unit. Each leg unit includes two legs connected to and pivotable relative to the top plate. The telescopic support unit includes two support members, a first telescopic subunit, and a lock subunit. The support members are respectively mounted on the leg units. The first telescopic subunit is connected between the support members, and has an inner tube and an outer tube that is sleeved on and is slidable along the inner tube. The lock subunit is operable between a lock state and an unlock state for locking or unlocking sliding movement between the inner and the outer tubes.

Abstract: Disclosed is a modular seat for aircraft. The system has a frame that is able to be interconnected with other frames laterally. Since each lateral frame has the same pivot points (when viewed from the side), the linked seats rotate together. The seats also include buckle lugs which enable a particular seat to be used on either side of the aircraft.

Abstract: A frame includes first and second mounting assemblies pivotally connected with each other. The frame also includes first, second and third leg assemblies. The first leg assembly is pivotally connected the first mounting assembly. The second leg assembly is pivotally connected with the second mounting assembly. The third leg assembly is pivotally connected with both of the first and second mounting assemblies. The frame further includes one or more supporting assemblies to enhance stability of the frame. A supporting assembly includes first, second and third members and a controller. The first member is connected with the third leg assembly. The controller is connected with the first member and selectively movable along the first member. The second member is pivotally connected with the controller and the first mounting assembly, and the third member is pivotally connected with the controller and the second mounting assembly.

Abstract: In an aspect there is provided a joint assembly 16 for panel board materials, comprising: a first member 14 comprising a tongue 22 extending from a surface 26 of the first member 14, the tongue 22 comprising a first groove 24 in a side 28 of the tongue 22; wherein at least a portion of the side 28 of the tongue 22 including the first groove 24 extends generally perpendicular to the surface 26 of the first member 14; and a second member 12 comprising: a second groove 32 in a surface 36 of the second member 12, the second groove 32 being arranged to receive the tongue 22; and a lip 34 extending into the second groove 32; wherein, in an assembled position, the tongue 22 is arranged to slot into the second groove 32 and the lip 34 is arranged to slot into the first groove 24 thereby to join the first and second members 14, 12.

Abstract: A floating tabletop leg cap configured for movable receipt onto the connecting portion of supporting member for positioning adjacent to an end portion of a table leg receiving the connecting portion. The floating tabletop leg cap including a resilient member affixed in a coupling between the supporting member and floating tabletop leg cap. Preferably, the resilient member is a compression spring configured to bias in a direction along a length of the table leg.

Abstract: In one aspect, a smart corner is provided that can be prefabricated. The smart corner comprises a rear side including a first hole, a first side including a second hole, a second side including a third hole, and a top. A wall frame is also provided. The wall frame includes a top plate, a bottom plate, studs, and four smart corners. A framing system is also provided comprising at least two wall frames. The at least two wall frames connect via the smart corners.

Abstract: A collapsible bed frame includes a first lateral bar unit, a second lateral bar unit, and a longitudinal supporting bar unit. The first and second lateral bar units are disposed substantially parallel to each other. The first lateral bar unit includes a first coupler to removably couple with a first end of the longitudinal supporting bar unit. The second lateral bar unit includes a second coupler to removably couple with a second end of the longitudinal supporting bar unit. The collapsible bed frame also includes first and second longitudinal bar units. The first longitudinal bar unit is rotatably connected with the first ends of the first and second lateral bar units. The second longitudinal bar unit is rotatably connected with the second ends of the first and second lateral bar units.

Abstract: The disclosed technology is directed to a stabilizing bow stand for use with a bow having a bow riser, wherein the stabilizing bow stand may be secured either to the bow riser or to an end of a stabilizer affixed to the bow riser. The stabilizing bow stand of the disclosed technology includes a mounting bracket having a support element and one or more legs independently and pivotally affixed at a proximal end of the leg(s) to the mounting bracket. The support element has a mounting hole to receive fastening means to facilitate mounting of the bracket to the bow or to the end of the stabilizer mounted on the bow.

Abstract: The present disclosure provides systems and methods for assembling a device while maintaining the aesthetic appearance and structural integrity of a visible surface of the device. In one or more implementations of the invention, a system includes a first assembly piece with an assembly region that comprises an opening defined by first and second connecting elements. The system further includes a second assembly piece and a fastening assembly, where a portion of the second assembly piece is shaped to fit within the assembly region opening and the fastening assembly spans the first and second connecting elements to secure the first assembly piece to the second assembly piece, and tightening of the fastening assembly causes the second connecting element to deform, pressing a surface of the second assembly piece against an adjacent surface of the first connecting element and retaining a substantially even visible surface of the device.

Abstract: In one aspect, a smart corner is provided that can be prefabricated. The smart corner comprises a rear side including a first hole, a first side including a second hole, a second side including a third hole, and a top. A wall frame is also provided. The wall frame includes a top plate, a bottom plate, studs, and four smart corners. A framing system is also provided comprising at least two wall frames. The at least two wall frames connect via the smart corners.

Abstract: A corner assembly for interconnecting first and second frame members. A first plate member includes an outer face having a mounting rail projecting therefrom which is receivable in a slot in the first frame member and a bolt-receiving bore therethrough extending along a first axis at an acute angle to the outer face. A second plate member includes an outer face generally perpendicular to the outer face of the first plate member and having a mounting rail projecting therefrom which is receivable in a slot in a second frame member. The second plate member including a bolt-receiving bore therethrough extending along a second axis at an acute angle to the outer face of the second plate member. A central portion interconnects the first and second plate members and has a mounting surface and a bore extending therethrough. The mounting surface including an alignment rail projecting therefrom.

Abstract: A pedestal leg assembly includes a pedestal leg and floor base. The leg includes a plurality of teeth near the bottom end of the leg and a connecting bolt in a threaded engagement with the bottom end of the leg. The floor base includes a recessed portion having a slot in its bottom surface to receive the bolt and a release mechanism configured to pivot between a lock position and a release position. In lock position the release mechanism engages at least one of the teeth to prevent rotation of the pedestal leg in one direction. When pivoted into release position, the release mechanism is moved away from engagement with the teeth to allow rotation of the pedestal leg in both clockwise and counterclockwise directions. The pedestal leg assembly may include a powered connection to receive input power at the floor base and transfer the power to a supported table top surface.

Abstract: A method of adjusting the inclination of a furniture leg and a mounting set including a base part, a mounting part, a fixation means, and a furniture leg. The base part comprises a first truncated cone element with an inclined surface. The mounting part includes a second truncated cone element having an inclined surface with a connecting element for detachable connection of the furniture leg. The fixation means prevents rotational movement between the base part and the mounting part. The mounting part is detachably fixated to the base part for allowing the mounting part to be rotated relative to the base part for adjusting the inclination angle of the furniture leg relative to the vertical plane being perpendicular to the planar underside of the furniture.

Abstract: A desk has legs at or near opposite lateral sides of the desk, feet, each mounted to a lower end of one of the legs and projecting from the leg to which it is mounted in at least a forward or rearward direction, a profile extending from one of the legs to the opposite one of the legs and mounted to upper end portions of the legs; and a desktop panel supported by the profile. The legs are coupled to the profile by twist lock connections. The twist lock connections are each locked or lockable against axial dislodgement by twisting of at least an end part of the leg relative to the profile about a center line of the leg. The profile projects from the legs in the rearward direction more than in the forward direction. A rearwardly projecting portion of the profile supporting the panel from below.

Abstract: A mechanical assembly disposed on the back surface of a handheld electronic device, or a case for holding such a device, provides a pinky finger extension for an individual's hand to use an electronic device comfortably and with decreased possibility of dropping or damaging the electronic device. The pinky finger extension can be moved between a closed position, where it is inaccessible, and an open position where the user can place their fourth or pinky finger over the pinky finger extension.

Abstract: A mounting bracket for attaching an accessory such as a cooler, sand and seed bucket or a golf equipment washer includes a mounting portion adapted to be mounted to a side wall and/or a front wall of a golf cart bag well. The bracket includes a mounting flange configured to connectably receive the accessory. The bracket may also include a horizontal support provided between the mounting portion and mounting flange. The horizontal support is preferably perpendicular to the mounting flange for supporting a bottom surface of the accessory mounted thereon.

Abstract: A tripod assembly includes a central tube having a first fastener, a lower tripod unit having an opening provided with a second fastener. The central tube is movable between a separated position, in which the first fastener can be spaced apart from the second fastener and a coupled position, in which, the first fastener extends into the opening to permit rotation of the central tube relative to the lower tripod unit in a clockwise direction such that the first and second fasteners engage each other to prevent separation of the central tube from the lower tripod unit, wherein, when the central tube is disposed at the coupled position, rotation of the central tube relative to the lower tripod unit in an anti-clockwise direction results in disengagement of the first and second fasteners to permit movement of the central tube away from the lower tripod unit, thereby disposing the tube at the separated position.

Abstract: Various embodiments disclosed herein relate to moment-resisting frames, kits for assembling such moment-resisting frames, and methods of repairing such moment-resisting frames. In an embodiment, a moment-resisting frame includes a beam connected to a column using a moment-resisting connection. The moment-resisting connection may include at least one exterior doubler plate (“EDP”) that is connected to the column and two or more connectors that are connected to both the beam and the EDP. In some embodiments, the moment-resisting frame may require less welding than conventional beam-to-column connections. Additionally or alternatively, such a moment-resisting frame may eliminate the need for components typically used in conventional beam-to-column connections (e.g., continuity plates).

Abstract: A ready-to-assemble upholstered and non-upholstered chair consisting of factory assembled sub-assemblies reducing the number of overall parts and assembly hardware which decreases the packaged cubic measure allowing more units to be loaded into shipping containers and trailers, inventoried in warehouses and distribution centers and displayed in retail outlets thereby reducing transportation and handling costs, while simplifying and expediting the assembly process. The invention includes a seat box sub-assembly so constructed to allow a portion of the chair back leg sub-assembly to nest therein reducing the package profile and cubic measure, as well as a front leg sub-assembly. The front leg and back leg sub-assemblies are assembled utilizing a left and right tenoned side rail which inserts into mortises on the front and back leg assemblies. The leg sub-assemblies are secured with a metal bolt, threaded on each end, housed longitudinally within a routed channel running on the exterior face of each side rail.

Abstract: Bumper guard and side post guard apparatuses prevent vehicles from being damaged when stored and transported within an auto-rack railcar, such as when vehicle doors are opened, where vehicle doors may otherwise contact the side panels and side posts of the auto-rack railcar. Methods of using the same are further provided.

Abstract: A tripod leg (3) comprises a lever wherein said lever (13) is arranged on a portion of said leg (3), which in use, does not move in relation to an attached tripod head element (2); characterized in that said lever (13) further comprises an aperture (15) which is sized to cooperate with one or more digits of a user's hand.

Abstract: A table having a table top, a bracket secured to the table top, a latching device coupled to the bracket, the latching device having a retaining wedge coupled to a draw latch via a cam device, and a table leg. The draw latch is configured to move the retaining wedge between a first position securing the table leg to the bracket and a second position unsecuring the table leg from the bracket.

Abstract: A tripod and a method of stabilizing a collapsible stand are provided. The tripod includes three legs attached to a base that swing open to a predetermined angle against a positive stop. The legs are locked into place in the open position via a leg spreader that forces (or pre-stresses/pre-loads) the legs outward against the stops. The method includes the steps of pivoting the legs of the collapsible stand to an open pivotal position into engagement with a stop, applying a load upon the legs to force the legs against the stop, and maintaining the load upon the legs while the stand is in use.

Abstract: Various embodiments disclosed herein relate to moment-resisting frames, kits for assembling such moment-resisting frames, and methods of repairing such moment-resisting frames. In an embodiment, a moment-resisting frame includes a beam connected to a column using a moment-resisting connection. The moment-resisting connection may include at least one exterior doubler plate (“EDP”) that is connected to the column and two or more connectors that are connected to both the beam and the EDP. In some embodiments, the moment-resisting frame may require less welding than conventional beam-to-column connections. Additionally or alternatively, such a moment-resisting frame may eliminate the need for components typically used in conventional beam-to-column connections (e.g., continuity plates).

Abstract: A modular storage unit which can be assembled with the use of coupler clips without using permanent fastening means such as nails or glue or tape. The side and top walls are assembled and kept in place through the use of coupler clips which prevent the panels from moving laterally or transversely. An optional back panel may be kept in place through the use of grooves in the side and top panels. Connector pins permit the modular storage units to be stacked horizontally and/or vertically. The modular storage units may have various configurations.

Abstract: A tripod appliance has a device comprising a support with three hubs and three legs rotationally attached to the hubs permitting the legs to be rotated from a standing position to a storage position. Each hub has a support contour and each leg has a clip and a clip contour, each clip defining a standing position and a storage position. First and second rotations about the hub effect changes between standing and storage positions. Rotation from standing to storage positions is deterred by an interference of the clip contour interfering with the support contour. Each leg is configured so that a force applied to the leg at a distance from the hub overcomes the interference, thereby effecting rotational displacement.

Abstract: A ready-to-assemble upholstered and non-upholstered chair consisting of factory assembled sub-assemblies reducing the number of overall parts and assembly hardware which decreases the packaged cubic measure allowing more units to be loaded into shipping containers and trailers, inventoried in warehouses and distribution centers and displayed in retail outlets thereby reducing transportation and handling costs, while simplifying and expediting the assembly process. The invention includes a seat box sub-assembly so constructed to allow a portion of the chair back leg sub-assembly to nest therein reducing the package profile and cubic measure, as well as a front leg sub-assembly. The front leg and back leg sub-assemblies are assembled utilizing a left and right tenoned side rail which inserts into mortises on the front and back leg assemblies. The leg sub-assemblies are secured with a metal bolt, threaded on each end, housed longitudinally within a routed channel running on the exterior face of each side rail.

Abstract: Provided is a structure that may include a structural tube having at least one slot extending from an end thereof, an end plate attached to the end of the structural tube, and at least one cross member extending through the at least one slot, the at least one cross member including a first region outside of the structural tube and a second region inside the structural tube.

Abstract: An assembly device is disclosed for attaching first and second hollow frame members together. The assembly device includes a hollow base member having a top wall, four sidewalls and an open bottom surface. The base member also has a hollow tube positioned therein. The assembly device also includes first and second hollow coupling members projecting outward from a top wall and a side wall of said hollow base member. Each of the first and second coupling members has four sidewalls and one or more cavities formed therein. The cavities allow an expandable adhesive that is placed therein to contact the inner periphery of one of the first and second hollow frame members once the first and second hollow frame members are slid onto one of the first or second coupling members. The expandable adhesive will hold the first and second hollow frame members secure to the assembly device.

Abstract: A case, having a standing leg for an electronic device, includes: a soft protective cover for protecting the electronic device installed therein, covering a back portion of the electronic device; a hard protective frame, constructed to removably mount over the soft protective cover; a standing leg for propping up the electronic device; and a recess formed on a back portion of the hard protective frame wherein the standing leg fits in the recess and the standing leg is pivoted with the soft protective cover and the hard protective frame.

Abstract: A connection member for a furniture foot of furniture is employed to connect a furniture body and a furniture foot together and contains: a base, a holding portion, and a fixing bottom. The holding portion forms on an upper end of the base and is arranged on a coupling face of the furniture body to connect with the furniture body. The fixing bottom forms on a lower end of the base and includes a main joining portion and two tilted portions. The two tilted portions obliquely extend from two peripheral sides of the main joining portion to two peripheral sides of the holding portion, among the two tilted portions and the two peripheral sides of the main joining portion define two first angles, and among the two tilted portions and the two peripheral sides of the holding portion define two second angles.

Abstract: A case for an electronic device includes a protective cover having a base member for covering a back portion of the electronic device and a side member for covering a side portion of the electronic device; a pivot opening formed on the base member wherein the pivot opening has a pair of end grooves formed on an inner surface of the base member; and a standing leg (or a kickstand) having a pair of projections. The projections are respectively mounted on and received in the end grooves. The standing leg has a body portion and a pivot portion and a standing leg recess is formed on the outer surface of the base member for receiving the body portion of the standing leg therein. The case further includes a sticker for being attached to the inner surface of the base member to cover the pivot opening.

Abstract: A system and method are disclosed for quickly and easily assembling PV modules into a PV array in a sturdy and durable manner. In examples of the present technology, the system includes various couplings having a first engaging portion adapted to engage a first PV module and a second engaging portion adapted to engage a second PV module. At least one of the engaging portions allows variable positioning of the engaged PV module along the engaging portion.

Abstract: A system and apparatus are disclosed including PV modules having a frame allowing quick and easy assembling of the PV modules into a PV array in a sturdy and durable manner. In examples of the present technology, the PV modules may have a grooved frame where the groove is provided at an angle with respect to a planar surface of the modules. Various couplings may engage within the groove to assemble the PV modules into the PV array with a pivot-fit connection. Further examples of the present technology operate with PV modules having frames without grooves, or with PV modules where the frame is omitted altogether.

Abstract: An apparatus and system for quickly and easily assembling PV modules into a PV array in a sturdy and durable manner. In some embodiments, the PV modules may have a grooved frame where the groove is angled into the frame with respect to the planar surface of the modules. Various components may engage within the angled groove to assemble the PV modules into the PV array using what may be referred to as a pivot-fit connection between the components and angled groove. Other embodiments may operate with PV modules having frames without angled grooves as by use of wraparound brackets.

Abstract: Systems and methods for providing screw bosses on a substrate. The substrate can be dimpled. The dimples can then be threaded to accept screw bosses. The dimples can be threaded using a threading die or can have threads cut by self-tapping screw bosses. An adhesive can be applied to the substrate, the bottom of the screw boss, or both. The screw bosses can include standoffs to determine the distance between the bottom of the screw boss and the substrate. The screw bosses can be threaded onto the dimples and can provide threads for attaching items to the substrate. A filler material can be applied to the reverse side of the substrate to fill-in the dimples and present a smooth surface. A decorative or protective layer can be applied over the filler material.

Abstract: A chair supporting structure comprises a base frame having a plurality of connecting arms which is downwardly inclined; a lower distal end of each connecting arm being formed with outer threads for combining with the connecting units; a plurality of legs being installed at a bottom of the a seat of a chair; an upper end of each leg being formed with an insertion hole; and a plurality of combining units for combining the base frame and let set; an upper end of the combining unit being formed with a combining hole which has inner threads; so that the outer threads of each combining arm being threadly engaged with the inner threads of the combining hole of the combining unit; a lower end of the combining unit being tightly engaged to the insertion hole so that the base frame is combined with the legs.

Abstract: Embodiments of the invention provide an apparatus for mounting an interactive/flat panel display device to a wall. According to at least one embodiment, the apparatus includes a first vertical member including a first portion and a second portion. The first portion is at least partially inserted into the second portion. One distal end of the first portion is attached to a first plate and one distal end of the second portion is attached to a second plate. The apparatus further includes a second vertical member including a third portion and a fourth portion. The third portion is at least partially inserted into the fourth portion. One distal end of the third portion is attached to a third plate and one distal end of the fourth portion is attached to a fourth plate. The apparatus further includes a first set of brackets configured to attach the first plate and the third plate to one of a ceiling or a wall, and a second set of brackets configured to attach the second plate and the fourth plate to a flooring.

Abstract: A seat core comprising a unitary body (1) including a peripheral wall (4, 5, 7) provided with a plurality of recesses (2), each recess being provided with at least one aperture (8) adapted to receive securing means for securing a chair component within the recess.

Abstract: A mechanical fitting for connecting structures may include a base structure and a plate member. The mechanical fitting may also include a support structure for supporting the plate member at a predetermined spacing from the base structure. The support structure may include a truss structure.

Abstract: A system for securing a plurality of structural members of a type of furniture together includes a plurality of brackets that each attach to an end of at least one of the structural members. A modified bracket permits simultaneous attachment of two or more of the structural members at an end of each of the structural members to the modified bracket. After attachment of the structural members to the modified bracket, each structural member is disposed at any desired angle with respect to a remainder of the structural members. A further modified bracket permits attachment of only one structural member end to the further modified bracket and attachment of the further modified bracket to another structural member along a longitudinal length of the other structural member. A recess provided at an end of each of the structural members receives a pair of spaced-apart longitudinal protrusions of any of the brackets.

Abstract: A support in the form of a high directional having a configurable number of telescoping legs is disclosed. The support provides a head and a plurality of telescoping legs, the head having a plurality of head units and each head unit having at least one associated leg depending therefrom. Each head unit being adapted to be coupled to at least two other head units.

Abstract: A repel assembly and method includes an engagement surface having an adhesive plane for securing to an object, a plurality of attachment spikes extending from the engagement surface at an angle transverse to the adhesive plane and a transport surface for supporting a fixture coupled to the plurality of attachment spikes, the fixture being positioned between the engagement surface and the transport surface. The repel assembly further includes an annular ring having an upper and lower ring coupled to the repel assembly, the lower ring having first and second ends spaced by a wiper body such that the annular ring repels debris from contacting and/or collecting on the transport surface.

Abstract: The present invention relates to a transportation box 100 for technical equipment 200, said transportation box in the orientation intended for use comprising: —a first, upper end frame 8, said first end frame having a hexagonal circumference and comprising six vertices 1,2,3,4,5,6 and six edges 11,12,13,14,15,16; —a second, lower end frame 18, said second end frame having a hexagonal circumference and comprising six vertices 21,22,23,24,25,26 and six edges 31,32,33,34,35,36; —said first and said second end frames being connected by six longitudinal corner elements 41,42,43,44,45,46; —each said corner element extending from one vertex of said first end frame 8 to one vertex of said second end frame 18; —said transportation box thereby comprising six longitudinal side sections 51,52,53,54,55,56; —wherein three of said six longitudinal side sections are leg sections 51,53,55, each leg section comprising a leg assembly 60; —wherein each leg assembly 60 comprises an extendable leg 70 being adapted to be able to sw

Abstract: A mounting bracket is provided that can be used with off the shelf steel tubing to make sturdy and secure frames securing for heavy equipment to a floor or other structure. Different sizes and shapes of frames are easily made by cutting the steel tubing to different lengths and assembling frames using the cut tubing and brackets. The mounting bracket includes two pairs of sidewalls respectively defining first and second channels set at an angle to one another. The mounting bracket further includes a base protrusion and may be configured such that the first and second channels receive a standard tubular member and the base protrusion fits into an end of the tubular member. The mounting bracket may also include a flange that is integral or part of a mounting bracket assembly.

Abstract: A structure including a structural member configured like a frame with four sides is disclosed. A closed cross-section structural member serving as a reinforcing material is provided in a crossing corner of the structural member. The closed cross-section structural member includes two horizontal portions separated from each other in a thickness direction of the structural member and extending in an in-plane direction of the structural member and two vertical portions one of which connects first ends of the two horizontal portions together and the other of which connects second ends of the two horizontal portions together. The closed cross-section structural member includes a first opening formed therein facing an inner-peripheral flat surface of the structural member and a second opening formed therein facing inside of the structural member.