Abstract: Zip track systems and systems for extending zip track systems are provided. An extension mechanism for a zip track system illustratively comprises a crossover unit, configured to attach to a zip track. The crossover unit illustratively comprises a crossover arch and two crossover support poles, wherein each of the support poles connects to an end portion of the crossover arch such that the support poles are configured to stand perpendicular to the zip track. The extension system further illustratively comprises a connection mechanism configured to connect the crossover arch to the zip track system such that the crossover unit distributes the weight of the track through the crossover arch and the crossover support poles.

Abstract: A resistance mechanism for an exercising device is provided. The resistance mechanism comprises a housing configured to engage the exercise device. The housing is configured to translate a resistance from a resistance generator to the exercise device. The resistance mechanism also comprises a resistance adjustment mechanism configured to adjust a level of resistance provided by the resistance mechanism. Adjustment in a first direction increases a provided resistance, and adjustment in a second direction decreases the provided resistance. The resistance generator comprises a flywheel coupled to an indexing wedge. The resistance mechanism is configured to, when the adjustment mechanism adjusts in the first direction, push against the indexing wedge in a linear direction towards and against a brake arm, causing the brake arm to engage the flywheel, thereby increasing the level of resistance provided by the resistance mechanism to the outdoor exercise device.

Abstract: A rotating playground device is presented. The rotating playground device comprises a frame configured to rotate, wherein rotation is initiated by a force applied to the frame. The rotating playground device also comprises a braking system configured to limit a speed at which the frame rotates. The rotating playground device is permanently mounted within a playground environment, wherein permanently mounted comprises a frame mounting point coupled to a ground point.

Abstract: A weather-resistant drum is presented. The weather-resistant drum comprises a drum head configured to produce a sound when struck. The weather-resistant drum also comprises a drum shell, configured to resonate the sound produced by the drum head. The drum shell also comprises a drain. The weather-resistant drum also comprises shield, coupled to the weather-resistant drum using a fastener. The fastener is configured to couple the shield to the weather-resistant drum, such that the drum head maintains a tuned configuration over an operational lifetime of the weather-resistant drum.

Abstract: A resistance mechanism for an exercising device is provided. In one embodiment, the resistance mechanism comprises at least one flywheel. The resistance mechanism may also comprise at least one resistance index wedge configured to engage with the at least one flywheel. The resistance mechanism may also comprise a resistance adjustment mechanism connected to the resistance index wedge and configured to alter a resistance provided to the exercise device by increasing pressure provided by the at least one resistance index wedge to the at least one fly wheel assembly, wherein the resistance mechanism is configured to operate in an outdoor environment.

Abstract: A metallophone structure configured for permanent installation in an outdoor environment is provided. The metallophone structure comprises a mounting structure. The metallophone structure also comprises a set of tone producing devices each coupled to the mounting structure by a fastener, wherein each tone producing device is configured to, when actuated, produce a sound frequency. The tone producing device is coupled in a location, by the fastener, as to reduce the effect on the quality of sound produced. The metallophone structure also comprises a mallet cradle configured to receive a mallet. The mallet is configured to actuate one of the tone producing devices. The metallophone structure is configured to be weather resistant such that each tone producing device still produces the sound frequency after an outdoor exposure period.

Abstract: A drum configured for permanent installation in an outdoor environment is presented. The drum comprises a mounting structure configured to permanently engage a mounting surface in the outdoor environment. The drum also comprises a shell coupled to the mounting structure. The drum also comprises a drum head coupled to the shell through use of a plurality of fasteners. The drum head comprises a tuned configuration. The drum structure is configured to be weather resistant. The drum head is configured to maintain the tuning configuration after a period of outdoor exposure.

Abstract: Rope clamps and methods for attaching rope clamps to climbing structures are provided. Rope clamps illustratively comprises a clamp portion configured to be attached to a climbing structure, wherein the clamp portion comprises a clamp body, a cover, a rope path and a fastener. The clamp body is configured to engage a portion of the climbing structure. The cover is configured to engage with a front of the clamp body. The rope path extends between the clamp body and the cover. The fastener is configured to attach the cover to the clamp body. Further, at least one rope configured to enter the rope path at a first point, extend through the rope path and exit the rope path at a second point.

Abstract: Rotating inclusive play devices are provided. In certain embodiments, a rotating play device includes a stationary base, a rotatable portion, and a speed limiting device that connects the stationary base to the rotatable portion. The speed limiting device illustratively limits a rotational speed of the rotatable portion relative to the stationary base. The rotatable portion may have an elevated outer perimeter that includes recessed and raised portions. The speed limiting device may include a cranking mechanism and/or a piston mechanism.

Abstract: Embodiments of play systems having multiple curved structural members are disclosed. Play systems illustratively include a first quarter of an ellipse, a second quarter of an ellipse, a third quarter of an ellipse, and a fourth quarter of an ellipse. Each ellipse quarter has first and second ends. The first, the second, the third, and the fourth ellipse quarters are oriented approximately vertically relative to a surface such that the first ends of the ellipse quarters contact the surface and the second ends of the ellipse quarters are above the surface. The first ends of the ellipse quarters are optionally spaced further apart from each other than the second ends of the ellipse quarters.

Abstract: Pebble or granular based elastomeric surfacing materials that include an aliphatic thermoplastic polyurethane based pebble or granule bonded together with a two-part aliphatic polyurethane binder are provided. In one embodiment, an A side of the two-part binder has at least one polyol, and a B side of the two-part binder has multiple isocyanates. The multiple isocyanates can include for example hydrogenated methylene diphenyldisocyanate and hexamethylene diisocyanate. The A side and the B side of the binder are utilized to bond the pebbles together to form a surface that can be either porous or non-porous. In another embodiment, an A side of a two-part binder includes multiple polyols. The multiple polyols can include for example esterified ricinoleic acid polyols and caprolactone polyols. The A side of the two-part binder can be combined with a B side of the two-part binder and pebbles to form a non-porous surface.

Abstract: Sensory wall systems are provided. In one embodiment, a sensory wall system includes one or more middle sections, one or more end sections, and an insert panel. The one or more middle sections have sides that are configurable to be attached to other middle sections or to the end sections. The one or more end sections are connected to the one or more middle sections. The insert panel is within the one or more middle sections and includes an activity for a child.

Abstract: Rotating inclusive play devices are provided. In certain embodiments, a rotating play device includes a stationary base, a rotatable portion, and a speed limiting device that connects the stationary base to the rotatable portion. The speed limiting device illustratively limits a rotational speed of the rotatable portion relative to the stationary base. The rotatable portion may have an elevated outer perimeter that includes recessed and raised portions. The speed limiting device may include a cranking mechanism and/or a piston mechanism.

Abstract: Embodiments of play systems having multiple curved structural members are disclosed. Play systems illustratively include a first quarter of an ellipse, a second quarter of an ellipse, a third quarter of an ellipse, and a fourth quarter of an ellipse. Each ellipse quarter has first and second ends. The first, the second, the third, and the fourth ellipse quarters are oriented approximately vertically relative to a surface such that the first ends of the ellipse quarters contact the surface and the second ends of the ellipse quarters are above the surface. The first ends of the ellipse quarters are optionally spaced further apart from each other than the second ends of the ellipse quarters.

Abstract: Pebble or granular based elastomeric surfacing materials that include an aliphatic thermoplastic polyurethane based pebble or granule bonded together with a two-part aliphatic polyurethane binder are provided. In one embodiment, an A side of the two-part binder has at least one polyol, and a B side of the two-part binder has multiple isocyanates. The multiple isocyanates can include for example hydrogenated methylene diphenyldisocyanate and hexamethylene diisocyanate. The A side and the B side of the binder are utilized to bond the pebbles together to form a surface that can be either porous or non-porous. In another embodiment, an A side of a two-part binder includes multiple polyols. The multiple polyols can include for example esterified ricinoleic acid polyols and caprolactone polyols. The A side of the two-part binder can be combined with a B side of the two-part binder and pebbles to form a non-porous surface.

Abstract: Embodiments of play systems having multiple curved structural members are disclosed. Play systems illustratively include a first quarter of an ellipse, a second quarter of an ellipse, a third quarter of an ellipse, and a fourth quarter of an ellipse. Each ellipse quarter has first and second ends. The first, the second, the third, and the fourth ellipse quarters are oriented approximately vertically relative to a surface such that the first ends of the ellipse quarters contact the surface and the second ends of the ellipse quarters are above the surface. The first ends of the ellipse quarters are optionally spaced further apart from each other than the second ends of the ellipse quarters.

Abstract: Embodiments of an arch-based play system are disclosed. The system incorporates an arch assembly or a group of arch assemblies. Play elements are connected to the arch assembly or assemblies. The system is modular in nature such that there are a wide variety of different possible implementation configurations. The wide variety of possible implementation configurations corresponds to a wide variety of different play experiences.

Abstract: Rotating inclusive play devices are provided. In certain embodiments, a rotating play device includes a stationary base, a rotatable portion, and a speed limiting device that connects the stationary base to the rotatable portion. The speed limiting device illustratively limits a rotational speed of the rotatable portion relative to the stationary base. The rotatable portion may have an elevated outer perimeter that includes recessed and raised portions. The speed limiting device may include a cranking mechanism and/or a piston mechanism.

Abstract: Embodiments of an arch-based play system are disclosed. The system incorporates an arch assembly or a group of arch assemblies. Play elements are connected to the arch assembly or assemblies. The system is modular in nature such that there are a wide variety of different possible implementation configurations. The wide variety of possible implementation configurations corresponds to a wide variety of different play experiences.