Drive unit for doors, especially elevator doors having a non-rectilinear profile

摘要

A drive unit for doors, especially doors having a non-rectilinear profile formed by wings (26, 26', 24, 24', 124, 126) comprises a motor (10) whose rotary shaft (20) engages with at least a bar or section (12, 14) connected to at least one of said wings. Said drive unit is located either on the roof or the external front of the lower basis or between the wings of an elevator car of story doors. In case of telescopic movement superposed wings, one of the wing is moved by the drive unit, and a transmission unit (100) transmits the rotation of a wing (124) to the other one (126).