SPIROGRAPH Russian patent published in 2025 - IPC B43L9/00 B43L11/08 B43L13/00 

FIELD: light industry.

SUBSTANCE: invention relates to light industry, namely to tools for drawing patterns and geometrical figures, in particular to spirograph. Spirograph comprises at least one frame-like body with inner cutout, inner periphery of which has teeth configured to engage with disc teeth, and disc with outer periphery made with teeth, and located in cutout. On the disc there are holes for a writing object. Disc is made with thickness less than the thickness of the body; at that, the ratio of the body thickness to the disc thickness is from 1.3 to 2.

EFFECT: elimination of disc protrusion beyond the limits of inner periphery, without increasing material consumption of the proposed solution.

3 cl, 2 dwg, 1 tbl