Structural arrangement applied to a school desk with simultaneous and proportional adjustment of the height of the desktop and the footrest

Abstract

The present utility patent relates to a school desk that, through a single simultaneous adjustment movement, allows for the vertical displacement of both a top panel (9) and a footrest platform (8), enabling the desk to adapt to users of different heights without modifying the chair structure. The constructive arrangement comprises two base sections (1), two top rack bars (2), two footrest rack bars (3), two spring-biased levers (4), a locking pin (5), two nuts (6), two double gears (7), a footrest platform (8), and a top panel (9). The double gears (7) have different numbers of teeth on each side, thereby ensuring proportional movement between the top panel (9) and the footrest platform (8). The locking mechanism requires simultaneous actuation of the spring-biased levers (4), preventing unintentional release. This configuration provides a simple, efficient, and ergonomic adjustment system suitable for educational environments.

Dependencies are inferred from the claim text.