WHEEL Russian patent published in 2012 - IPC B60B19/00 B60B5/00 

FIELD: transport.

SUBSTANCE: invention relates to wheel design to be used as teaching and visual aids. Said wheel comprises hub, rim and rim holders. Said rim is arbitrarily curved. Note that rim projection on plane located perpendicular to axis crossing the hub center is circle-shaped. Rim holders are curved arbitrarily. Note here that their projection on plane located perpendicular to axis crossing the hub center features shape of straight lines.

EFFECT: expanded performances to be used as teaching and visual aids in learning geometry.

2 cl, 8 dwg