A trampoline frame structure that comprises multiple transverse pipes, joint sleeve structures and leg arrangements is disclosed. The joint sleeve structures serve to connect transverse pipes to form a rim structure. Leg arrangements are connected to the joint sleeve structures. At the upper end of the joint sleeve structure is an elongated headpiece, and at both of the ends of the headpiece are sockets. The cross-section of the socket is polygonal. At the ends of the transverse pipes are conical connection extensions, and the cross-sections of the extensions correspond to the cross-sections of the sockets. The assembled rim structure comprises the transverse pipes with the headpieces between them.

A profile system includes a series of elongate profiles (1) and one or more intermediate and/or end elements (8; 28). A series of connecting pins (14) each are a separate part having two end portions (15, 16) and being designed to releasably connect a profile (1) on the face side with an intermediate and/or with an end element (8; 28). The profile cross sections form on their face side receiving openings (5) for receiving the first end portion (15) of a connecting pin (14). The intermediate and/or end elements (8; 28) comprise receiving holes (13) for receiving the second end portion (16) of a connecting pin (14). The receiving openings (13) of the intermediate and/or end elements (8; 28) each extend through a wall into a cavity of the intermediate and/or end element (8; 28).

A method for joining composite rods with tubular shape without expensive, machined connectors and without compromising the structural integrity of the composite rod includes internal and external collars applied to the ends of the composite rod and deformed via unidirectional compressive load applied by a clamp in the radial direction of the composite rod cross-section. The resulting plastic deformation of the metal collars and composite rod interlock those components to support both compressive and tensile loads. The deformed metal collars are easily joinable to other components via off-the-shelf hardware.

A splice having a main body and one or more protrusions extending from the main body. The one or more protrusions can be operable to interfere with a rail when the main body is installed into an opening of the rail. The one or more protrusions may be operable to cut into a coating of the rail and form an electrical connection between the rail and the main body.

A device for securing accessories such as bins, hooks, shelves, mirrors, trays, and baskets to a vertical support pole without tools and without a separate wedge or collar, including two fully separable pieces that interlock to surround the support pole and a lever that tightens to the pole without the use of a separate sleeve or wedge and without using tools.

A trampoline frame structure that comprises multiple transverse pipes, joint sleeve structures and leg arrangements is disclosed. The joint sleeve structures serve to connect transverse pipes to form a rim structure. Leg arrangements are connected to the joint sleeve structures. At the upper end of the joint sleeve structure is an elongated headpiece, and at both of the ends of the headpiece are sockets. The cross-section of the socket is polygonal. At the ends of the transverse pipes are conical connection extensions, and the cross-sections of the extensions correspond to the cross-sections of the sockets. The assembled rim structure comprises the transverse pipes with the headpieces between them.

A hanger-rod clip can be configured for use with a strut that at least partially surrounds a hanger rod to provide stiffness to the hanger rod. The hanger-rod clip can include a handle portion and a rod-clamping portion. The rod-clamping portion can be configured to urge the hanger rod into engagement with an internal surface of the strut as the handle portion is moved towards the strut.

A clamping apparatus includes a handle, two claws, a joint and a spring. The handle is pivotally connected to a portion of the joint. The claws are pivotally connected to another portion of the joint. The spring is located between the claws so that the spring biases the claws from each other.

A solar panel racking system that can include end clamps, mid clamps, bottom clamps, L-foot adapter assemblies, rails, and L-foot assemblies. The solar panel racking system minimizes the use of tools by snapping many of the mounting components in place. The end clamps, mid clamps, and bottom clamps can snap over the rail sides and lock into upper detented portions of the rail sides. The upper detented portions are structured to prevent upward movement of the end clamps, mid clamps, and bottom clamps. The L-foot adapter body of the L-foot adapter assembly snaps over lower detented portions of rail sides and secures the rail to an L-foot assembly. The end clamps, mid clamps, bottom clamps, rails, and L-foot adapter assemblies are independent of the L-foot assembly, allowing a selection of L-foot assemblies to be used as appropriate with the solar panel racking system.

A first embodiment of a torque tube coupler may include an outer body that includes a first abutting surface and a second abutting surface adjacent to the first abutting surface. Set screws may be inserted into one or more channels of the first abutting surface. Tightening the set screws may force the abutting surfaces away from each other and the outer body to press against an inner surface of a torque tube. Another embodiment of the torque tube coupler may include a central ring sized based on a size of a torque tube. The torque tube coupler may also include a set of fingers that extend away from a first side of the central ring and are shaped to flex radially outward. The torque tube coupler may include a core disposed within the set of fingers that, when drawn towards the central ring, causes the fingers to flex radially outwards.