Drawing aid for poorly sighted persons comprises mobile support for pencil having threaded rod allowing translation, nut on second support controls angular position of first support and third perpendicular support translated by threaded rod

摘要

The drawing aid comprises a mobile support (S1) for a drawing pencil (10) able to move in the XY direction. A threaded rod (24) inserted through an opening (22) has a crank (26) fixed to its end allows translation of the support. A knurled nut (30) mounted on a second support controls the angular position of the first support. A second threaded rod (44) located in an opening (42) has a crank (46) at its end provides a second means of translation of the second support. A third support perpendicular to the others has a threaded rod (54) enabling its translation.