An apparatus configured to make ski runs comprising a support structure; a first tiller; at least one tracksetting device; and a connection structure that couples the tracksetting device to the first tiller; the connection structure being configured to allow the free rotation about an axis, such as transverse to the advancing direction, of the tracksetting device with respect to the tiller.

An apparatus configured to make ski runs comprising a support structure; a first tiller; at least one tracksetting device; and a connection structure that couples the tracksetting device to the first tiller; the connection structure being configured to allow the free rotation about an axis, such as transverse to the advancing direction, of the tracksetting device with respect to the tiller.

A ramp system includes a ramp unit, a sliding rod, and a connecting unit. The ramp unit includes a first ramp having an upper edge and a lower edge spaced from the upper edge in a vertical direction. The sliding rod includes a sliding portion, a first leg, and a second leg. The sliding portion extends from an end of the sliding rod to another end of the sliding rod. The first leg and the second leg are connected to two different locations of the sliding portion. The connecting unit includes a column and a connecting member. The column is connected to the lower edge of the first ramp. The connecting member is connected to the upper edge of the first ramp. The connecting member includes a coupling ring mounted around the first leg.

A ramp system includes a ramp unit, a sliding rod, and a connecting unit. The ramp unit includes a first ramp having an upper edge and a lower edge spaced from the upper edge in a vertical direction. The sliding rod includes a sliding portion, a first leg, and a second leg. The sliding portion extends from an end of the sliding rod to another end of the sliding rod. The first leg and the second leg are connected to two different locations of the sliding portion. The connecting unit includes a column and a connecting member. The column is connected to the lower edge of the first ramp. The connecting member is connected to the upper edge of the first ramp. The connecting member includes a coupling ring mounted around the first leg.

A roller skating rink for players to play a skating game utilizes one or more game implements. A skating track is made from a plurality of track sections. The roller skating rink includes concave channel sections on one side of the track sections and has a lower end and an upper end that are substantially vertically aligned. One or more propelling devices are each adapted to propel one of the game implements into the roller skating rink. One or more scoring receptacles are situated for receiving one or more of the game implements therein proximate the upper end of the concave peripheral wall. A method of game play is further disclosed.

A roller skating rink for players to play a skating game utilizes one or more game implements. A skating track is made from a plurality of track sections. The roller skating rink includes concave channel sections on one side of the track sections and has a lower end and an upper end that are substantially vertically aligned. One or more propelling devices are each adapted to propel one of the game implements into the roller skating rink. One or more scoring receptacles are situated for receiving one or more of the game implements therein proximate the upper end of the concave peripheral wall. A method of game play is further disclosed.

A sports exercise area comprising a landing area comprising an impact attenuating system for attenuating impact when landing on the landing area is provided. An impact attenuating system (1; 2) is provided for attenuating impact onto a landing area, for example when exercising freestyle sports, gymnastics or athletics. The impact attenuating system (1) comprises a first inflatable structure (14). The first inflatable structure (14) comprises a first sheet (101) and a sheet (102). A first side (111) of the first sheet is in contact with and connected to a first side (112) of the second sheet along a first plurality of parallel first connection lines (103-1, 103-2, 103-2) to form a first plurality (104) of parallel first air chambers (104-1, 104-2, 104-3). The first plurality of parallel first air chambers is inflatable to form a first plurality of parallel first tubular airbags arranged side-by-side in a first plane substantially parallel to the top surface of the landing area. A top layer (110) may be provided. A second inflatable structure (24) may be provided on top of the first inflatable structure (14).

A sports exercise area comprising a landing area comprising an impact attenuating system for attenuating impact when landing on the landing area is provided. An impact attenuating system (1; 2) is provided for attenuating impact onto a landing area, for example when exercising freestyle sports, gymnastics or athletics. The impact attenuating system (1) comprises a first inflatable structure (14). The first inflatable structure (14) comprises a first sheet (101) and a sheet (102). A first side (111) of the first sheet is in contact with and connected to a first side (112) of the second sheet along a first plurality of parallel first connection lines (103-1, 103-2, 103-2) to form a first plurality (104) of parallel first air chambers (104-1, 104-2, 104-3). The first plurality of parallel first air chambers is inflatable to form a first plurality of parallel first tubular airbags arranged side-by-side in a first plane substantially parallel to the top surface of the landing area. A top layer (110) may be provided. A second inflatable structure (24) may be provided on top of the first inflatable structure (14).

A modular ramp for creating a ski jump on a modern naval vehicles is provided. Generally, the system allows a user to manipulate a ramp surface in a way that best suits the needs of the user at that time. The system generally comprises a framework, interlinking tracks, and control arm. The control arm manipulates the position of the framework, which in turn manipulates the surface created by the interlinking tracks. The modular ramp may also comprise mechanical joints and a hinge, which may allow the surface to be manipulated in multiple directions.

A self-standing portable ice skating rink structure that does not penetrate the underlying surface and generally requires no tools or hardware for installation is provided. The ice skating rink structure includes a perimeter component and one or more tension members. The perimeter component can include one or more board holding members and/or one or more optionally interlocking side boards.