Adjustable keyboard drawer assembly

摘要: An adjustable drawer assembly is disclosed comprising first and second arm members (28,30) having inward ends pivotally journaled to a housing member (4), carriage plate (20) for transporting the arms from storage position within an operable in front of housing. Distal include meshing teeth (44,73) locking together whereby preventing downward pivotal movement relative A third (78) provided support keyboard surface (104). The connected member, enabling pivot into alternative angular attitudes. Meshing gear racks (42,90) are on inhibiting motion, actuation means (92) simultaneously releasing coincidental vertical repositionment surface.