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 .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 .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.

An open field game arrangement includes glowing targets and provides responses, such as lights and sounds, when the targets are hit.

An open field game arrangement includes glowing targets and provides responses, such as lights and sounds, when the targets are hit.

The multisport space includes a plurality of different fields for goal sports and net sports. There is a first square or rectangular area for goal sports delimited by a vertical wall. The first goal sports area has a goal sports field in which the goals are vertical and extend from ground level. There is a goal sports field in which the goals are horizontal and placed at a certain height. The panels of the vertical wall form nets for a plurality of net sports fields arranged on either side of the panels of the vertical wall. Extensions of panels, leading from their respective implantation axes, also form nets for net sports fields.

The multisport space includes a plurality of different fields for goal sports and net sports. There is a first square or rectangular area for goal sports delimited by a vertical wall. The first goal sports area has a goal sports field in which the goals are vertical and extend from ground level. There is a goal sports field in which the goals are horizontal and placed at a certain height. The panels of the vertical wall form nets for a plurality of net sports fields arranged on either side of the panels of the vertical wall. Extensions of panels, leading from their respective implantation axes, also form nets for net sports fields.

A sliding carpet assembly and a sliding carpet. The sliding carpet assembly comprises multiple roll shaft units. Each roll shaft unit comprises a roll shaft (310), and a fixing catch (210) in contact with and connected to one side of the roll shaft (310). The fixing catch (210) includes a supporting body. The supporting body is provided with a first through hole (213) and a second through hole (214). The axis of the first through hole (213) and the axis of the second through hole (214) are perpendicular to each other and do not intersect with each other. Moreover, the sliding carpet assembly further includes multiple connecting ropes (100). In a first direction, the connecting ropes (100) pass through the first through holes (213) to connect the multiple sequentially arranged roll shaft units in series. In a second direction perpendicular to the first direction, the connecting ropes (100) pass through the second through holes (214) to sequentially connect the multiple sequentially arranged fixing catches (210). By using such a sliding carpet, sliding friction is replaced with rolling friction. Thus, a sportsman can be prevented from falling by inertia due to a sudden deceleration caused by excessive resistance. Moreover, the sportsman could carry on sliding with the sliding carpet, and the safety is improved.

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.

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 .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.