Rate of deceleration is an important factor in determining the severity of injuries, such as head and neck injuries, possibly sustained when participants collide with a wall assembly while playing, for example, ice hockey. The described wall assemblies each include a support assembly and a movable wall assembly supported by and movable with respect to the support assembly. Telescoping parts of the movable wall assembly enable deflection of the movable wall assembly to complex angles with respect to the support assembly. In addition, movable wall assemblies can be couple such that impact on one wall assembly can cause deflection of an adjacent wall assembly. Covers, shields, and spacers can be positioned to decrease gap formation during deflection of the movable wall assembly to reduce the risk of pinch points.

A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a μ.sub.s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a μ.sub.s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

A ring for a fighting sport has a circular fighting area defined by a plurality of circular fence rings that are held up by posts. Shock absorbers connect the fence rings to the posts. Position markers are provided to indicate the starting positions of the participating fighters at certain points during the bout.

A ring for a fighting sport has a circular fighting area defined by a plurality of circular fence rings that are held up by posts. Shock absorbers connect the fence rings to the posts. Position markers are provided to indicate the starting positions of the participating fighters at certain points during the bout.

An energy absorption corner assembly for gate-opening sections and gates of dasher board assemblies for a playing zone having a playing zone comprising: an elongate core section comprising a polymer material having a first durometer; a sheet of the polymer material having a second durometer, wherein the second durometer is greater than the first durometer, wherein the sheet of the polymer material covers an entire surface of the elongate core section(s) facing the playing zone.

The present invention relates to a multi-sport center and more specifically, a multi-sport center having sectors used for various sport games and a passage separating the sectors, wherein each sector includes courts formed according to court standards of sports whose courts are inter-compatible to each other, and the adjacent courts are inter-compatible, thereby increasing efficiency of a sport center. The center further comprises more than one cooling and heating booth installed at one side of each sector, thereby helping players in each court to take breaks. In addition, the center further comprises cantilevers that is installed on an inner wall at the second to the fourth floor level and that can look down the first floor, wherein a café, a snack bar, a media room, an electronic game room, a go game room, and jogging track, instead of stands, are installed on the cantilevers.

The present invention relates to a multi-sport center and more specifically, a multi-sport center having sectors used for various sport games and a passage separating the sectors, wherein each sector includes courts formed according to court standards of sports whose courts are inter-compatible to each other, and the adjacent courts are inter-compatible, thereby increasing efficiency of a sport center. The center further comprises more than one cooling and heating booth installed at one side of each sector, thereby helping players in each court to take breaks. In addition, the center further comprises cantilevers that is installed on an inner wall at the second to the fourth floor level and that can look down the first floor, wherein a café, a snack bar, a media room, an electronic game room, a go game room, and jogging track, instead of stands, are installed on the cantilevers.

Rate of deceleration is an important factor in determining the severity of injuries, such as head and neck injuries, possibly sustained when participants collide with a wall assembly while playing, for example, ice hockey. The described wall assemblies each include a support assembly and a movable wall assembly supported by and movable with respect to the support assembly. Telescoping parts of the movable wall assembly enable deflection of the movable wall assembly to complex angles with respect to the support assembly. In addition, movable wall assemblies can be couple such that impact on one wall assembly can cause deflection of an adjacent wall assembly. Covers, shields, and spacers can be positioned to decrease gap formation during deflection of the movable wall assembly to reduce the risk of pinch points.

Rate of deceleration is an important factor in determining the severity of injuries, such as head and neck injuries, possibly sustained when participants collide with a wall assembly while playing, for example, ice hockey. The described wall assemblies each include a support assembly and a movable wall assembly supported by and movable with respect to the support assembly. Telescoping parts of the movable wall assembly enable deflection of the movable wall assembly to complex angles with respect to the support assembly. In addition, movable wall assemblies can be couple such that impact on one wall assembly can cause deflection of an adjacent wall assembly. Covers, shields, and spacers can be positioned to decrease gap formation during deflection of the movable wall assembly to reduce the risk of pinch points.