Abstract: A bracket assembly for housing and mounting a LiDAR system to a roof of a vehicle is disclosed. The bracket assembly a base bracket having a base structure configured to be mounted to the roof of the vehicle, and a datum structure extending substantially perpendicularly to the base structure and configured to extend inside a datum hole of the roof of the vehicle. The datum structure defines an elongated channel extending through the datum structure and having an opening defined at a first surface of the base structure. The bracket assembly also includes a datum pin adapted to extend inside the elongated channel through the opening of the base structure.

Abstract: A roof scaffolding support system comprises two ridge hooks, two cables, and two roof jacks. Each ridge hook comprises a generally J-shaped bar and a cross-bar at a distal end and perpendicular to the J-shaped bar. Each cable comprises a main flexible portion and a plurality of spaced-apart nodules on the main flexible portion that are larger than the main flexible portion. The base of each roof jack defines a slot having an open end for selectively receiving one of the cables to selectively secure the base to its corresponding cable. The slot has a width that is (a) greater than the main flexible portions of the cables and (b) less than the nodules such that the main flexible portion of each cable can pass through the slot of its corresponding base but the nodules of each cable cannot pass through the slot of its corresponding base.

Abstract: A guardrail post assembly includes a post frame defining a first lateral side and a second lateral side opposite the first lateral side; a first guardrail strap mounted proximate to the first lateral side; a second guardrail strap mounted proximate to the second lateral side, the first guardrail strap and the second guardrail strap mounted at equal heights on the guardrail post assembly; and a guardrail attachment assembly mounted to the post frame, the guardrail attachment assembly comprising a strap mounting portion and locking portion, the first guardrail strap mounted on the strap mounting portion.

Abstract: The present disclosure relates to a device for fixing a rope for building cleaning, including: a body case having a loop-receiving portion formed in an open front surface thereof and a fastener-fitting hole formed on an upper portion of the loop-receiving portion; a loop fastener having a loop-fixing plate, a loop-fitting hole formed on one side of the loop-fixing plate, a rope loop rotatably fitted to the loop-fitting hole, and reinforcing bar-fitting holes formed on the other side of the loop-fixing plate in such a way as to pass through the fastener-fitting hole of the body case and allow a reinforcing bar of a building to be inserted into any one thereof; and a case bracket fixed to the underside of the rear surface of the body case in such a way as to be supported against another reinforcing bar of the building.

Abstract: A beam support structure that is formed of a first bracket for supporting a first beam or post; and a second bracket for supporting a second beam. Each of the first and second brackets are of U-shape including a base wall and a pair of side walls that extend orthogonal to the base wall, and a support flange that extends parallel to the pair of side walls and an arm having respective ends that connect between the respective flanges of the first and second brackets. The arm is secured between the first and second brackets, while allowing multiple different secured positions between the first and second brackets. A leveling member may be associated with each bracket and arm.

Abstract: A lightweight composite roofing support system comprises a longitudinally-extending core member comprising a longitudinally-extending first roof contact side comprising a first edge and opposed second edge, a longitudinally-extending second side comprising a second side working surface having a second width and a second length that is greater than the second width, the second side tapering toward the first edge at a first predetermined acute angle, and a longitudinally-extending third side comprising a third side working surface having a third width and a third length that is greater than the third width, the third side tapering toward the second edge at a second predetermined acute angle that is different than the first predetermined acute angle, a first end comprising an integral first recess defining a first handle, and an opposed second end comprising an integral second recess defining a second handle, the core member comprising a wedge-shaped lateral cross-section.

Abstract: Devices, systems, and methods for attaching solar modules to roofs. The devices may include a module hook clamp with a clamp body with clamp body arms extending upward from a clamp body base. The clamp body arms may include downward-facing hooks that engage a portion of the solar module's return flange and the outward-facing surface of the solar module. A spacer may optionally be positioned between the clamp body arms. The spacer may seat the solar module. A hook arm with a generally curve-shaped seating surface may extend below the clamp body base. The devices may further include a module attachment bracket that secures a second solar module in a similar manner as the module hook clamp. The module attachment bracket may include a platform that seats the hook arm of the module hook clamp, and a hook arm receiver that receives and secures the open end of the hook arm.

Abstract: Devices, systems, and methods for attaching solar modules to roofs. The devices may include a module hook clamp with a clamp body with clamp body arms extending upward from a clamp body base. The clamp body arms may include downward-facing hooks that engage a portion of the solar module's return flange and the outward-facing surface of the solar module. A spacer may optionally be positioned between the clamp body arms. The spacer may seat the solar module. A hook arm with a generally curve-shaped seating surface may extend below the clamp body base. The devices may further include a module attachment bracket that secures a second solar module in a similar manner as the module hook clamp. The module attachment bracket may include a platform that seats the hook arm of the module hook clamp, and a hook arm receiver that receives and secures the open end of the hook arm.

Abstract: A system and method for a portable solar cell array system is provided. One embodiment has a first, second and third plurality of solar cell panels, a support structure, a lower assembly slidably coupled to the support structure, a center assembly secured to the support structure, wherein the center assembly is secured to the support structure, and an upper assembly slidably coupled to the support structure. When in a closed configuration, the first, second and third plurality of solar cell are stacked above each other and are within the support structure. When in an open configuration, the first, second and third plurality of solar cell panels are aligned in an upward orientation in a first row, second row, and third row to collect solar radiation.

Abstract: A mounting device includes a base that is rectangularly elongated. The base includes an open bottom that extends lengthwise along a direction of elongation of the base. A pair of guides is disposed on opposite sides of the base, extending lengthwise along the direction of the elongation of the base. The pair of guides are for guiding support hardware in linear movement along the direction of the elongation of the base. An internal cavity is within the base for containing a sealant against a roof when the mounting device is secured to the roof. An opening extends through the base for receiving a fastener to secure the mounting device to the roof. The opening is in communication with the internal cavity.

Abstract: A solar tracker bearing and a solar tracker incorporating the bearing, the bearing including at least one rotatable part, the rotatable part including a notch for receiving a torque tube, a slot, formed in the rotatable part and extending below the notch, the slot defining an arc having multiple radii, at least one engagement member configured to be received in the slot, and at least one base configured to secure the engagement member in the slot and to secure the bearing to a pier.

Abstract: A safety rail apparatus is provided, which comprises a post with a base configured to reversibly engage with a floor and providing support for at least 12 kN load, a rail holder configured to hold a rail in reversibly fixed engagement with the post and a plurality of components which are together operable to adjust the height of the post between a lower height of 900 mm-1.2 m and an upper height of 1.9 m-2.5 m. The plurality of compontents is further configured to adjust the height of the post to the lower height during one stage of a construction project and to the upper height during another stage of the construction project such that the upper height is at least 1.8 times higher than the lower height. The apparatus further comprises a mesh support configured to reversibly engage with the rail and support a mesh.

Abstract: This disclosure discusses devices for mounting solar PV panels to a roof and other mounting structures. One device may include a railless mounting assembly that includes a roof attachment bracket and a panel attachment bracket. The roof attachment bracket may include a spring clip and a hook. The device may include a solar panel frame with built-in detents for mounting. It may include a solar panel frame capable of attaching to the spring clip and hook.

Abstract: Provided is a Fall Arrest Staple that includes a slanted base with a flat welding surface and an integral ring section extending from the base that is constructed from aluminum with a maximum internal radii that is capable of accepting a small carabineer. The staple can be welded to an aluminum pole, such as a 4?OD×0.25? mast that is found on a ship. Advantages provided by the staple include the ability of welding in a perpendicular orientation to a ship deck (in the direction of a fall), welding to a curved aluminum backing plate, and the use of the staple with a curved backing plate that can be welded directly to a ship mast.

Abstract: A fall arrest assembly for anchoring a fall arresting line to a pair of roof trusses includes a truss mount that has a pair of channels each being integrated into the truss mount. The pair of channels is oriented parallel with respect to each other to insertably receive a beam of a respective one of a pair of roof trusses thereby mounting the truss mount to the pair of roof trusses. An anchor box is integrated into the truss mount and the anchor box has an anchor point which is integrated into the anchor box. In this way the anchor point can have a fall arresting line attached to the anchor point thereby facilitating the fall arresting line to be mounted to the pair of roof trusses.

Abstract: A structural support block cooperates with a cone-shaped protrusion in a roof flashing. The support block and protrusion have a through-hole allowing a fastener to secure the support block and flashing to a roof. Cooperation of the support block and the cone-shaped protrusion in the roof flashing diverts water, particularly on sloped surfaces.

Abstract: A bracket for attaching solar panels to a roof, in the form of an L-foot, as well as devices and assemblies that utilize the L-foot. The L-foot includes a base and a riser extending upward from the base. The base includes a pair of raised stiffeners each extending obliquely upward toward each other from opposites sides of the base and each extending lengthwise along the base. The base can receive threaded roof fasteners that extend perpendicularly through the raised stiffeners and obliquely through the base. Threaded roof fasteners positioned on opposite raised stiffeners can extend through the roof deck toward each other. The L-foot is compatible with rail-based and rail-less solar panel racking systems.

Abstract: A system includes a plurality of storage brackets installed on a roof deck, each including a base plate, an arm and optionally a head and a receptacle. The arm is optionally rotatable. The receptacle of one of a first pair of storage brackets is configured to receive the head of another of the first pair of storage brackets. The receptacle of one of a second pair of storage brackets is configured to receive the head of another of the second pair of storage brackets. The first and second pairs of storage brackets are spaced apart from one another. The brackets are configured to receive at least one roofing material, which is positioned on the base plate of at least one of the first pair of brackets and at least one of the second pair of brackets.

Abstract: A cross canal support structure for photovoltaic cells is disclosed. The structure includes a major frame having disconnectable and hinged connections to anchors at its corners, on either side of the canal. The major frame carries a plurality of minor frames, which are inclinable at an angle with respect to the major frame with the use of fixed or adjustable mounting plates. The combination of the major frame's tilt and the minor frame tilt enables fabrication of support structures that hold panels at latitude inclination for various portions of a canal.

Abstract: An emergency escape device to which an escape rope is adapted to be secured, includes a unitary, one-piece steel anchor plate; a semi-spherical projection pressed outwardly of the center of the plate, to form an outward projection; portions of the outward projection cut out to form a central opening in the plate, while leaving an arcuate, outwardly extending securement band as a remnant of the outward projection to enable attachment of a carabiner; a peripheral opening cut out to one side of the central opening for receiving at least one bolt for securing the device to a wall; and at least one peripheral opening cut out at to an opposite side of the central opening for receiving at least one bolt member for securing the device to a wall; and the plate being heat treated to impart greater strength thereto.

Abstract: Systems, devices and methods, etc., comprising anchors configured to attach to standing seams such as those typically present on metal roofs. The systems, etc., provide benefits such as improved anchorage points for personal fall protection anchorage devices and variability of and security of attachment to the standing seams. The personal fall protection anchorage devices can comprise a retention plate configured to hold the personal fall protection device to a central portion of the retention plate and having at least two y-axis spaced-apart slot configured to immobily hold opposed standing seam graspers each comprising at least two opposed grasping elements sized and configured to immobily squeeze standing seams of the metal roof.

Abstract: A fall protection system having one or more modules is provided. Each module is made of a structural sheet having a ridge and at least one attachment panel, and a user attachment mechanism. The attachment panel can be secured to a working structure. The module can further have a restraining mechanism for resisting at least lateral and rotational movement of the ridge up to a threshold force, and be configured to fail or deform and permit lateral and rotational movement of the ridge if the threshold force is exceeded. The restraining mechanism can be tabs extending from the attachment panel, fasteners, welds, or another mechanism for resisting lateral and rotational movement of the ridge.

Abstract: There is provided a railing post adaptor for a roof support apparatus. The roof support apparatus comprises an elongate member having a plurality of longitudinal sides. The railing post adaptor comprises a roof support apparatus connector for securing the railing post adaptor to the roof support apparatus. The roof support apparatus connector comprises a first connection portion arranged to engage, in use, with a first set of the plurality of longitudinal sides, and a second connection portion, movably mounted to the first connection portion and arranged to engage, in use, with a second set of the plurality of longitudinal sides, the second set being different from the first set. The roof support apparatus connector further comprises a railing connection portion extending from the roof support apparatus connector for detachably securing a proximal end of a railing post to the roof support apparatus via the railing post adaptor. The first set and the second set each comprise at least two longitudinal sides.

Abstract: A system includes a plurality of storage brackets installed on a roof deck, each including a base plate, an arm and optionally a head and a receptacle. The arm is optionally rotatable. The receptacle of one of a first pair of storage brackets is configured to receive the head of another of the first pair of storage brackets. The receptacle of one of a second pair of storage brackets is configured to receive the head of another of the second pair of storage brackets. The first and second pairs of storage brackets are spaced apart from one another. The brackets are configured to receive at least one roofing material, which is positioned on the base plate of at least one of the first pair of brackets and at least one of the second pair of brackets.

Abstract: Disclosed herein are roof brackets, devices, and apparatuses for standing seam metal roofs to provide a removable place to place a foot. In one aspect, an apparatus may include a bracket configured to releasably secure to a standing seam of a panel, the bracket having a housing having at least one side comprising a slot configured to allow at least a portion of a standing seam to travel therethrough; a plurality of cams contained within the housing, the plurality of cams rotatably connected to the housing at a first portion of the plurality of the cams; at least one elongated member connected to at least one of the plurality of cams; and at least one tension element connected to the housing and in operable communication with at least one of the plurality of cams. Also disclosed herein are methods for using the disclosed roof brackets and apparatuses.

Abstract: A mount for use over a roof flashing on a composition roof. The mount includes a central aperture for a fastener, a top surface with a horizontal platform extending laterally from the top surface, and a conical inner surface to cooperate with a conical protrusion on the roof flashing.

Abstract: A valley roof bracket is an adjustable V-shaped bracket having an upper cross-member upon which a triangular shaped platform may adjustably be positioned. The device may be secured to an angular side of a pitched roof.

Abstract: The pedestal supports a satellite antenna. The pedestal can be used by government or armed forces and allows them to easily and quickly transport and set up the pedestal. The pedestal can withstand harsh environmental conditions while still allowing the satellite antenna being supported by the pedestal to operate in the military communication bands. The pedestal meets military requirements and only allows a small amount of deflection in extreme conditions. The pedestal can be assembled by only two-man and the assembly can be performed entirely by hand without using any machines, tools, or mechanical parts beyond the provided pedestal components. The pedestal is made of carbon fiber which makes the pedestal robust, durable, and light weight. The dissembled pedestal components can be stored and transported in one container. A satellite communications terminal including the pedestal and a satellite antenna is also contemplated.

Abstract: An illuminating decorative device comprising a plurality of electrically conducting wires interconnected together as a lattice or web including a plurality of lights that are electrically coupled to an electrical power strip having one or more connectors for connecting to an external power source, where the illuminating decorative device is configured into various ornamental shapes or patterns including for example, snowcaps, or a spider web. The illuminating decorative device is easily and quickly attachable to buildings and other surfaces such as rooftops as one integral unit to provide decorative illumination during holiday seasons or festive occasions or celebrations.

Abstract: A roof mount assembly mounts a structure to a roof having a rafter and a substrate supported by the rafter. The roof mount assembly includes a piece of flashing positioned on the substrate. The flashing includes a first surface, a second surface opposite the first surface and an aperture extending through the flashing. A fastener extends through the flashing aperture. A bracket is connected to the flashing via the fastener, and the bracket is sized to support at least one roof-mounted structure on the roof. A seal is positioned between the flashing aperture and the fastener. The seal is sized to form a water-tight seal with the aperture to inhibit flow of fluid through the aperture. The seal includes a first portion and a second portion, in which the first portion is positioned to abut the flashing first surface and the second portion is positioned to extend through the aperture.

Abstract: An adjustable support for a panel is provided to allow control of the height and the tilt angle of the panel. The support includes a hollow cylindrical base having an outer diameter D1; a first hollow piston having an outer diameter D2 threadably engaged with the base; a second hollow piston having an outer diameter D3 threadably engaged with the first piston; a third piston having an outer diameter D4 threadably engaged with the second piston, such that D1>D2>D3>D4. A ball pod extends from the third piston and accommodates a ball attached to the panel. One or more stepper motors are provided, where each stepper motor is coupled to a bottom portion of a respective piston, and a rotor of each stepper motor is configured to rotate the corresponding piston, thereby causing the piston to move along a longitudinal axis of the support.

Abstract: A curb assembly for a heating, ventilation, and/or air conditioning (HVAC) system includes a frame configured to couple to a curb of a structure, a pedestal system configured to couple to a housing of the HVAC system and to the frame, such that the pedestal system extends from the housing to the frame, and an adjustable duct connector configured to fluidly couple an air flow passage of the housing with ductwork of the structure. The pedestal system is configured to enclose a space formed between the frame and the housing and the adjustable duct connector configured to be disposed within the space.

Abstract: Mounting clamps may be utilized to quickly and easily secure solar panel modules relative to mounting rails, which may in turn be secured relative to a mounting surface (e.g., a roof). The mounting clamps may be configured to quickly secure the solar pane modules relative to the mounting rails by tightening a tightening element to pull a clamp element toward the surface of a mounting rail, thereby clamping a portion (e.g., a frame) of a solar panel module between the clamping element and an outer surface of the mounting rail.

Abstract: An adjustable support for a panel is provided to allow control of the height and the tilt angle of the panel. The support includes a hollow cylindrical base having an outer diameter D1; a first hollow piston having an outer diameter D2 threadably engaged with the base; a second hollow piston having an outer diameter D3 threadably engaged with the first piston; a third piston having an outer diameter D4 threadably engaged with the second piston, such that D1>D2>D3>D4. A ball pod extends from the third piston and accommodates a ball attached to the panel. One or more stepper motors are provided, where each stepper motor is coupled to a bottom portion of a respective piston, and a rotor of each stepper motor is configured to rotate the corresponding piston, thereby causing the piston to move along a longitudinal axis of the support.

Abstract: A structural support block cooperates with a cone-shaped protrusion in a roof flashing. The support block and protrusion have a through-hole allowing a fastener to secure the support block and flashing to a roof. Cooperation of the support block and the cone-shaped protrusion in the roof flashing diverts water, particularly on sloped surfaces.

Abstract: A support assembly for a rooftop shade system is provided. The support assembly includes a plate defining a plurality of parallel, angled slots that extend inward from one edge of the plate. The support assembly also includes a pole that is operatively connected to the plate such that the angle formed between the plate and the pole is selectively variable. The pole terminates at a pin that is insertable through a grommet on a tarp to thereby support the tarp.

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 inline clip for holding a light bulb along a light string includes a top flat area, two symmetrical sides, and two symmetrical tabs. The flat area has a constant width extending across a side profile and a constant thickness extending from a top surface of the top flat area to an internal surface of the top flat area. The two symmetrical sides extend in a continuous manner at respective upper ends from a left end and a right end of the top flat area, and are arcuate shaped for forming a hollow interior space configured to receive within the light bulb and a portion of the light string aligned side-by-side along a diameter of the light bulb. The two symmetrical tabs extend in a continuous manner at respective connecting ends from the lower ends of the two symmetrical sides.

Abstract: Autonomous vehicles are made by fitting sensors to non-autonomous vehicle platforms. A mounting structure to mount rear-facing sensors to the vehicle is needed to provide sensor data about the rear environment of the vehicle. The mounting structure is secured to the vehicle by utilizing existing vehicle body structures. The vehicle body structures include rearward roof chassis parts that provide stability and security to the mounting structure.

Abstract: Disclosed is a solar panel top clamp assembly for securing solar panels to a support section such as a rail or rail-less mounting structure. The solar panel top clamp assembly includes a panel clamp and a base. The panel clamp includes a crossbar and a pair of legs projecting obliquely downward from the crossbar and angled inward toward one another. The panel clamp is secured to a pedestal that projects upward from a platform. The platform is captively slidable within the support section. The pedestal and platform together form a portion of the base. Thanks in part to the unique structure of the panel clamp, the solar panel top clamp assembly can perform the function of both an end-clamp and a mid-clamp.

Abstract: A system for evaluation of soiling of solar photovoltaic (PV) modules may comprise a first pair of solar PV modules exposed to the elements, a second pair of solar PV modules enclosed within a protective housing having a glass cover; a component coupling the glass cover to the protective housing. The component may be configured to displace the glass cover for a limited period of time to temporarily expose the second pair of solar PV modules to the atmospheric elements.

Abstract: A photovoltaic (PV) module mounting system can have mounting clips that can be moved up and down a roof, and can allow the height of the mounting clips to be adjusted relative to the roof. At least a portion of the system can be made of a non-conductive material so that the system can be free of a grounding unit. The system can allow solar modules to be quickly installed, and can allow the solar modules to be removed quickly for repair or in the event of a fire.

Abstract: A Conduit Tile Hook is disclosed for supporting a conduit above a roof. The Conduit Tile Hook simply slides under an existing roof tile, without cut-outs or removing any nails, and allows the conduit to sit 1.5? off of the roof surface to decrease the effects of heating caused by solar irradiance.

Abstract: A device and method for a rotatable photovoltaic (PV) panel mount is described. A moving frame, comprising a standard PV panel, connects via a hinge to a fixed frame. In an “operative” position, the moving frame and its PV panel are coplanar with a larger, fixed array of PV panels. A spring between the fixed frame and the moving frame powers the moving frame to rotate around the hinge pivot from horizontal (operative) to vertical (roof access), when an emergency handle releases a latch. The roof access position provides unobstructed roof access to a portion of the roof previously under the PV panel. A damper limits speed of motion of the moving frame. Embodiments include an additional horizontal (folded) position, on top of an adjacent PV panel.

Abstract: There is disclosed an anchor assembly for coupling a tether to a structure such as a rock wall (14) in a fitted condition with a fastening arrangement having a fastener. The anchor assembly includes an anchor body having a first portion located toward a first end adapted to couple with the tether and a second portion located toward a second end. The second portion is adapted to receive the fastener in the fitted condition. The anchor assembly also includes an indicator arranged to be engagable in the fitted condition between the fastening arrangement and the anchor body. The indicator includes a body portion and a deformable portion extending from the body portion, the deformable portion being adapted to be moveable relative to the body portion between an initial non-deformed condition and a deformed condition in response to loading of the fastening arrangement.

Abstract: Some embodiments relate to an attachment system for attaching at least one panel to a supporting structure that includes at least one girder extending in a first direction, the girder including a holding rim and a surface for bearing the panel thereon. The system includes a flange, a clamp and a clamping assembly linking the flange to the clamp, which are arranged so as to sandwich, during assembly, the holding rim of the girder with the panel so that they bear on the bearing surface of the girder. The clamp includes a first series of teeth projecting towards the flange in a manner substantially parallel to an axis of the clamping assembly. The teeth are to engage, via gripping, with the holding rim of the girder during assembly.

Abstract: In various embodiments, the mounting systems described herein may be configured to mount a solar panel array to a flat concrete roof like those found throughout the Caribbean and Central and South America. Other systems described herein may be configured to facilitate mounting structures on standing seam metals roofs. Still other systems described herein may be configured to facilitate mounting structures on composite shingle, slate, or tile roofs. The mounting systems described herein may be configured as rail-less or rails free roof mounting systems.

Abstract: A device and method for a rotatable photovoltaic (PV) panel mount is described. A moving frame, comprising a standard PV panel, connects via a hinge to a fixed frame. In an “operative” position, the moving frame and its PV panel are coplanar with a larger, fixed array of PV panels. A spring between the fixed frame and the moving frame powers the moving frame to rotate around the hinge pivot from horizontal (operative) to vertical (roof access), when an emergency handle releases a latch. This “roof access” position now allows roof access through a portion of the roof that was covered by the moving frame in its operative position. A damper, such as a flywheel, limits the rotational speed and prevents injury or damage. Embodiments include kits, installation of embodiments, and use of the invention to access a roof portion in a fire emergency.

Abstract: An installation assembly for a photovoltaic module comprises a base plate, a pressing block, a elastic member, and a connecting member. The base plate comprises a connecting portion. The pressing block comprises a pressing portion, a supporting portion, and a sliding portion. The sliding portion is movably connected to the base plate. The elastic member is located between the connecting portion and the supporting portion. The connecting member sequentially inserted into the pressing block, the elastic member, and the base plate. The pressing block, the elastic member, and the base plate are positioned between two ends of the connecting member.

Abstract: A mount for a solar panel capable of changing a tilt angle of the solar panel easily and positively, includes a tilted support frame including a pair of horizontal members extending along a horizontal direction in parallel with different heights and a pair of tilted members arranged between the horizontal members and extending in parallel to be tilted in one side, a fixed support member fixing and supporting the tilted support frame, a square-shaped panel support member on which a solar panel is fixed, a support shaft extending between the tilted support frame and the panel support member and supporting the panel support member to rotate, and a pair of stopper members respectively provided on both rotating end sides of the panel support member so that one end portions rotate freely and including engaging concave portions engaged with half circumferences of outer peripheries of the horizontal members.