Emergency unlocking device on a sliding door for vehicles, in particular public transport vehicles

摘要

The system includes a cylinder (5), a spring (5.1) and a slotted link (6) engaging a door opening bolt (7). A knob or plunger operates a 3/2-way valve supplying compressed air to the cylinder. The drive supplements an electric motor (4) connected to the upper support and guide system (3) for the door frame members (2) and the left (1A) and right (1B) door leaves.