SPIROGRAPH Russian patent published in 2024 - IPC B43L9/00 B43L11/08 B43L13/00 

FIELD: painting tools.

SUBSTANCE: invention relates to tools for drawing patterns and geometric figures, in particular to a spirograph. Spirograph comprises a collapsible housing with two hinged parts of the housing, each of which includes a fixed base. Along the perimeter of the housing there is a fixing frame, inside which there is a toothed ring, inside of which there is a toothed disk with holes to accommodate a rod of writing accessories. Inner periphery of fixing frame is equipped with inner teeth of fixing frame, made with possibility of engagement with teeth of outer periphery of toothed ring, made on its outer periphery. Inner periphery of toothed ring is equipped with inner teeth of the ring made with possibility of engagement with outer teeth of toothed disk made on its outer periphery. Fixing frame is made with a protective projection of the frame passing along its inner periphery above the inner teeth of the fixing frame so that they are completely closed from above, and the toothed ring is made with a protective projection of the toothed ring passing along its protective inner periphery above the inner teeth of the ring so that they are completely covered from above.

EFFECT: possibility of drawing with both hands at the same time, possibility of training ambidexterity with the user, possibility of storing toothed disks in the housing of the spirograph and more reliable fixation of the toothed ring and the toothed disk in the spirograph housing.

11 cl, 2 dwg