An assembled slide is defined with a slide front side and a slide back side, comprises a head section, a connect section and a tail section. The head section is disposed with a first carrying portion at a head section first end facing the connect section, the connect section is disposed with a first lapping portion connected to the first carrying portion at a connect section first end facing the head section and a second carrying portion at a connect section second end facing the tail section, and the tail section is disposed with a second lapping portion connected to the second carrying portion at a tail section first end facing the connect section. The head section, connect section and tail section are respectively formed with at least one accommodating groove on an axis. At least one support rib is disposed in the at least one accommodating grooves.

A locking carabiner includes a body having a first end and a second end. A gate rotatably coupled to the second end about a gate axis, and a locking mechanism rotatably coupled to the gate about a locking mechanism axis. The locking member is configured to engage with the first end, and the gate axis is substantially parallel to, and offset from, the locking mechanism axis. Additionally, the rotation of the locking mechanism is in a substantially similar plane as the rotation of the gate.

A rolling vehicle track including a first wall and a second wall each positioned between and connected to a third wall and a fourth wall. The track further includes a bracket having a first bracket portion, a second bracket portion, a third bracket portion, and a fourth bracket portion, the first bracket portion connected to the third wall, and the fourth bracket portion connected to the first wall. The track further includes the first wall, the second wall, the third wall, and the fourth wall defining a first quadrilateral chamber. The track further includes the first bracket portion, the second bracket portion, the third bracket portion, and the first wall defining a second quadrilateral chamber, the first wall, the second wall, the third wall, the fourth wall, and the bracket are interconnected without welding.

A starting ramp for tubing tracks suitable for making the start of a tubing donut easier, comprising a lever system suitable for lifting the starting element and a lever system activation device for gradually lifting the starting element and an activation device housed within a control console.

A roller coaster track may comprise a laminate and a metal bearing layer. A method of manufacturing a roller coaster track may comprise manufacturing a laminate, manufacturing a metal bearing layer, and assembling the laminate and bearing layer. The bearing layer may be at least partially filled with grout. A method of repairing a wood roller coaster track may comprise removing a layer of laminate, and replacing the layer with a metal bearing layer.

Embodiments of the present disclosure are directed to play panels, and playground structures comprising such panels, that provide an interactive play activity for children. The play panels comprise at least a surface that is configured to provide an interactive element, a control unit, and a connection element configured to communicatively link an adaptive switch. A child may interact directly with one or more elements on the surface of the play panel to actuate the play activity. A child having a disability may also actuate the play activity using an adaptive switch that is communicatively connected to the play panel. In some embodiments, the control unit may be configured to operate the play activity differently depending on whether it is actuated by elements on the surface of the play panel or a connected adaptive switch.

Embodiments of the present disclosure are directed to play panels, and playground structures comprising such panels, that provide an interactive play activity for children. The play panels comprise at least a surface that is configured to provide an interactive element, a control unit, and a connection element configured to communicatively link an adaptive switch. A child may interact directly with one or more elements on the surface of the play panel to actuate the play activity. A child having a disability may also actuate the play activity using an adaptive switch that is communicatively connected to the play panel. In some embodiments, the control unit may be configured to operate the play activity differently depending on whether it is actuated by elements on the surface of the play panel or a connected adaptive switch.

A system includes a head-mounted virtual reality/augmented reality (VR/AR) display system, comprising a processor, wherein the processor is configured to display an image on a graphical display of the head-mounted VR/AR display system. The system further includes a scaffolding system comprising a headpiece configured to be worn by a user; wherein the headpiece comprises at least one fastener configured to fasten and unfasten the head-mounted VR/AR display system to the headpiece, and configured to fasten and unfasten a headgear to the headpiece.

A system includes a head-mounted virtual reality/augmented reality (VR/AR) display system, comprising a processor, wherein the processor is configured to display an image on a graphical display of the head-mounted VR/AR display system. The system further includes a scaffolding system comprising a headpiece configured to be worn by a user; wherein the headpiece comprises at least one fastener configured to fasten and unfasten the head-mounted VR/AR display system to the headpiece, and configured to fasten and unfasten a headgear to the headpiece.

The multifunctional device has slide and ladder portions easily connectable for use together as a self-supporting unit, and easily detachable for use separately on other equipment or for compact storage or transport. When set-up for use as a self-supporting unit, the ladder and slide portions are hooked together by a double-hook/double-axle connection system that does not allow the angle between the ladder and slide to change any significant amount during normal use of the set-up device. Yet, quick disconnection may be done when the weight of the user is removed, by purposely lifting and pivoting the portions, and then unhooking their top ends from each other. When disconnected from each other, the ladder and/or the slide portion (and preferably both) may be connected/hooked to another object(s), for example, a trampoline or a play equipment platform or other specially-adapted elevated structure, for climbing up to, and sliding down from, said trampoline/platform.