YO-YO BALL CAPABLE OF SCRAPING MOTION AND ACCELERATION ENERGY ACCUMULATION Russian patent published in 2017 - IPC A63H1/30 

FIELD: games.

SUBSTANCE: toy yo-yo is described. It is capable of scraping motion and acceleration energy accumulation, comprises two rotating pieces and the joining roller, which unites the rotating pieces. Moreover, every rotating piece comprises the side cover and the disc-shaped body, which is composed of the scraping motion energy accumulation device, one end of which is linked to the disc-shaped body, and the other end is linked to the side cover. When the side covers are interlocked on both sides, the disc-shaped bodies are brought into contact with the external contact surface for the energy accumulation by the energy accumulation device under the rolling motion with friction. When the process of the energy accumulation is completed, the interaction between the disc-shaped bodies and the external contact surface is ended, the scraping motion energy conservation device starts to release the energy for the both disc-shaped bodies setting into synchronous rotation. As the result, the requirements of the players of a different age and height could be satisfied.

EFFECT: toy's capability to rotate at a high speed even though it is thrown with the use of a short cord in so doing permitting the use of this toy to the full extent by the short player.

13 cl, 4 dwg