Abrégé

A device comprises an enclosure (8), a flywheel (1) located within the enclosure, one or more bearings (3) that allow the flywheel to rotate independently of the enclosure, and an opening (7) in the enclosure to allow the insertion of a charging device (5), the charging device serving to rotate the flywheel and store angular kinetic energy within the flywheel. Preferably, the enclosure comprises a circular circumference in a plane aligned with the enclosed flywheel, the device being symmetrical about the axis of rotation of the flywheel at this circumference such that the device may be rolled along a level surface, along this circumference, whilst the enclosed flywheel is spinning.

Classes IPC  ?

• A63H 17/00 - Véhicules, p. ex. automoteursLeurs accessoires
• A63H 29/20 - Mécanismes à roue libre
• A63H 33/00 - Autres jouets
• A63B 43/04 - Balles avec dispositifs particuliers à centre de gravité excentré ou avec un moyen pour changer le centre de gravité