The subject of the invention is an in-line skate braking system designed to brake in-line skate wheels. This is achieved by an electric motor controlling the action of the brake segment on in-line skate wheels.

The invention relates to a mating device (2) for mating two skates, characterized in that it comprises a first fastening module (6) and a second fastening module (6′), each designed to be fastened to a skate and comprising a body (7) between the two fastening modules (6, 6′), the said body (7) allowing at least a translational freedom between the two fastening elements (6, 6′), the distance between the two fastening modules (6, 6′) being free between a predetermined minimum distance and a predetermined maximum distance

The present invention relates to a drifting electric scooter and, more specifically, to a drifting electric scooter, wherein: a sensor unit is installed at a controller and the movement of a scooter is controlled according to the moving direction and angle of the controller, and thus a short control section for acceleration and stopping of a conventional electric scooter is widened, so that the problems, such as abrupt start and abrupt stop, of the conventional electric scooter can be solved; the drifting electric scooter allows riders to more precisely control the speed and enjoy riding such that the riders can easily and safely control acceleration and stopping by simple upward/downward movement of the controller; a human body detection sensor is attached to a handle portion of the controller, and thus the scooter stops to prevent malfunction of the scooter when the controller is separated from a user's hand, so that safety is ensured and thus safe riding is possible; and multiple switches for selecting various riding modes are installed at the controller, so that more pleasant and interesting riding than in conventional scooter riding is possible.

Systems and devices for a team game played on an obround court includes radially symmetric barriers defining cylindrical goals having circular openings concentric with the semicircles of the obround court. An annular halt zone extends around the barriers. A free throw line extends around each halt zone. An obround judge lane extends along the perimeter of the court and is occupied by two judges or referees that monitor the game, while another judge or referee remains inside the perimeter. The court is divided by a centerline which includes a circle at the center of the court. The outer wall of the barrier includes one or more video screens. Audience members can access a computer network to display images, text or video selected by them in real-time during gameplay. The ball used for the game has a surface texture provided by a plurality of square pebbles instead of rounded pebbles.

A handle 10 for a pole that houses within its body 12 a power means housing 20, the housing 20 having an electrical power storage means 50 where a device can be connected to the handle 10 and supplied with electrical energy from the storage means 50. Due to increased demands of portable electricity, during outdoor activities, the handle 10 allows a means to easily carry and supply electricity for devices.

The disclosure relates generally to an electric skateboard. The electric skateboard may include a deck, at least a rechargeable battery pack, a control module, and a communications module, a pair of trucks mounted to the deck, a plurality of wheels mounted on axles of the trucks; and one or more motors installed in one or more of the plurality of wheels for propelling the electric skateboard. The deck may include a front end, a rear end, a top plate. The rechargeable battery pack, control module, and communications module may be enclosed in an enclosure attached to the deck.

A roller board has axles provided with castors and secured at the front and rear ends of a board deck such that a steering movement is transferrable to the axles by a person on the board deck by lateral shifting of weight. Steerability and problem-free operation are improved. Substantially rigid booms, one directed to the front and one directed to the rear, are provided at the front and rear ends of the board deck, respectively. A support arm pointing in the direction of the central axis of the board deck is rigidly fastened to each boom. The support arms are pivotable on the two sides about a pivot axis inclined in the direction of travel by 40° to 50° relative to the plane of the board deck. The axle of a single castor is mounted rotatably in or on each hub, with the pivot joint inside the castor.

An electric skateboard comprising: a deck; a front truck and a rear truck; a pair of wheels rotatably connected to each truck, wherein one or both pairs of wheels are driven by sensored motors; a communications module configured to receive control instructions from a wireless remote control and to transmit data to one or more external devices; a controller in communication with the communication module and the motors; and a battery supplying power to the motors, communications module and controller.

A ski may define a body that defines a tip, a tail opposite the tip, a top sheet, a base extending from the tip to the tail and opposite the top sheet, a core layer positioned between the base and the top sheet, and a reinforcement layer positioned between the top sheet and the base. The reinforcement layer defines an aperture extending through the reinforcement layer and positioned within a first third of a length of the ski, the length defined from the tip to the tail.

Presented is an apparatus and system for an artificial turf system. The artificial turf system includes a backing layer having a plurality of fibers extending therefrom. The artificial turf system further includes a plurality of impact sensors located at least partially on, in, and/or beneath the backing layer, wherein the plurality of impact sensors are operable to detect a force or pressure applied to the backing layer.